From Philippe.DENIEL@CEA.FR Tue Jun 1 06:45:59 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o51Bjw8b249401 for ; Tue, 1 Jun 2010 06:45:58 -0500 X-ASG-Debug-ID: 1275393041-37a9038f0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from oxalide-out.extra.cea.fr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 711F715810B2 for ; Tue, 1 Jun 2010 04:50:41 -0700 (PDT) Received: from oxalide-out.extra.cea.fr (oxalide-out.extra.cea.fr [132.168.224.1]) by cuda.sgi.com with ESMTP id 7JpYNcveo5qL24Yq for ; Tue, 01 Jun 2010 04:50:41 -0700 (PDT) Received: from pisaure.intra.cea.fr (pisaure.intra.cea.fr [132.166.88.21]) by oxalide.extra.cea.fr (8.14.2/8.14.2/CEAnet-Internet-out-2.0) with ESMTP id o51BmN74030845 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Tue, 1 Jun 2010 13:48:23 +0200 Received: from muguet1.intra.cea.fr (muguet1.intra.cea.fr [132.166.192.6]) by pisaure.intra.cea.fr (8.14.4/8.14.4) with ESMTP id o51BmMfK018772 for ; Tue, 1 Jun 2010 13:48:22 +0200 (envelope-from Philippe.DENIEL@CEA.FR) Received: from zia.bruyeres.cea.fr (esteban.dam.intra.cea.fr [132.165.76.10]) by muguet1.intra.cea.fr (8.13.8/8.13.8/CEAnet-Intranet-out-1.1) with SMTP id o51BmMhh018938 for ; Tue, 1 Jun 2010 13:48:22 +0200 Received: (qmail 4856 invoked from network); 1 Jun 2010 11:48:22 -0000 Message-ID: <4C04F386.908@cea.fr> Date: Tue, 01 Jun 2010 13:48:22 +0200 From: DENIEL Philippe Organization: CEA-DAM User-Agent: Thunderbird 2.0.0.6 (X11/20070728) MIME-Version: 1.0 To: xfs@oss.sgi.com X-ASG-Orig-Subj: xfsprogs/libhandle : How to get the handle for a symbolic link ? Subject: xfsprogs/libhandle : How to get the handle for a symbolic link ? Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 01 Jun 2010 11:48:22.0751 (UTC) FILETIME=[566B5EF0:01CB0180] X-Barracuda-Connect: oxalide-out.extra.cea.fr[132.168.224.1] X-Barracuda-Start-Time: 1275393042 X-Barracuda-Bayes: INNOCENT GLOBAL 0.3931 1.0000 -0.0178 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -0.02 X-Barracuda-Spam-Status: No, SCORE=-0.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31323 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hi, I am currently developing a user space nfs server with various backends. One of this backend module use xfsprogss's libhandle to implement XFS support. I could do almost everything with open_by_handle and fd_to_handle, used jointly with ATFILE_SOURCE functions, but I do have a problem with symbolic links. To build an xfs object's handle, I get its parent handle (now problem to this) then I call "openat" to get the fd to the object before calling fd_to_handle. This works ok, but not for symbolic link : the openat with follow the link. I added the O_NOFOLLOW flag to openat, but now openat return ELOOP instead. I know there is a readlink_by_handle function in libhandle. How could I build the related handle to be used as argument to it (I mean, how to build a handle that refers to the symlink itself, not the object it points to). Regards Philippe From jack@suse.cz Tue Jun 1 10:52:08 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o51Fq88q004690 for ; Tue, 1 Jun 2010 10:52:08 -0500 X-ASG-Debug-ID: 1275407812-49b502ec0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mx1.suse.de (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id C4FA715828B9 for ; Tue, 1 Jun 2010 08:56:52 -0700 (PDT) Received: from mx1.suse.de (cantor.suse.de [195.135.220.2]) by cuda.sgi.com with ESMTP id 8gPHGfDI5d5ot2FW for ; Tue, 01 Jun 2010 08:56:52 -0700 (PDT) X-ASG-Whitelist: Barracuda Reputation Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.221.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.suse.de (Postfix) with ESMTP id 78A9493987; Tue, 1 Jun 2010 17:54:32 +0200 (CEST) Received: by quack.suse.cz (Postfix, from userid 10005) id 76B202B1BC8; Tue, 1 Jun 2010 17:54:17 +0200 (CEST) Date: Tue, 1 Jun 2010 17:54:17 +0200 From: Jan Kara To: Andrew Morton Cc: Dave Chinner , linux-kernel@vger.kernel.org, xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, tytso@mit.edu, jens.axboe@oracle.com X-ASG-Orig-Subj: Re: [PATCH 6/6] writeback: limit write_cache_pages integrity scanning to current EOF Subject: Re: [PATCH 6/6] writeback: limit write_cache_pages integrity scanning to current EOF Message-ID: <20100601155417.GA7425@quack.suse.cz> References: <1274784852-30502-1-git-send-email-david@fromorbit.com> <1274784852-30502-7-git-send-email-david@fromorbit.com> <20100527143341.d4258798.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100527143341.d4258798.akpm@linux-foundation.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: cantor.suse.de[195.135.220.2] X-Barracuda-Start-Time: 1275407813 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu 27-05-10 14:33:41, Andrew Morton wrote: > On Tue, 25 May 2010 20:54:12 +1000 > Dave Chinner wrote: > > > From: Dave Chinner > > > > sync can currently take a really long time if a concurrent writer is > > extending a file. The problem is that the dirty pages on the address > > space grow in the same direction as write_cache_pages scans, so if > > the writer keeps ahead of writeback, the writeback will not > > terminate until the writer stops adding dirty pages. > > > > The really was a pretty basic bug. It's writeback 101 to test that case :( The code has this live-lock since Nick fixed data integrity issues in write_cache_pages which was (digging) commit 05fe478d ("mm: write_cache_pages integrity fix") in January 2009. Jens just kept the code as it was... ... > That being said, I think the patch is insufficient. If I create an > enormous (possibly sparse) file with a 16TB hole (or a run of clean > pages) in the middle and then start busily writing into that hole (run > of clean pages), the problem will still occur. > > One obvious fix for that (a) would be to add another radix-tree tag and > do two passes across the radix-tree. > > Another fix (b) would be to track the number of dirty pages per > adddress_space, and only write that number of pages. > > Another fix would be to work out how the code handled this situation > before we broke it, and restore that in some fashion. I guess fix (b) > above kinda does that. (b) does not work for data integrity sync (see changelog of the above mentioned commit). I was sending a patch doing (a) in February but in particular you raised concerns whether it's not too expensive... Since it indeed has some cost (although I was not able to measure any performance impact) and I didn't know a better solution, I just postponed the patches. But I guess it's time to revive the series and maybe we'll get further with it. Honza -- Jan Kara SUSE Labs, CR From SRS0+7RX2+1+fromorbit.com=david@internode.on.net Tue Jun 1 18:26:55 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o51NQteH032111 for ; Tue, 1 Jun 2010 18:26:55 -0500 X-ASG-Debug-ID: 1275434959-37c201b80000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 6B4051E038A4 for ; Tue, 1 Jun 2010 16:29:20 -0700 (PDT) Received: from mail.internode.on.net (bld-mail15.adl6.internode.on.net [150.101.137.100]) by cuda.sgi.com with ESMTP id dvNL7nG5tWRyv8YN for ; Tue, 01 Jun 2010 16:29:20 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 14806481-1927428 for multiple; Wed, 02 Jun 2010 08:59:18 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJatZ-0001kd-EQ; Wed, 02 Jun 2010 09:29:17 +1000 Date: Wed, 2 Jun 2010 09:29:17 +1000 From: Dave Chinner To: DENIEL Philippe Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfsprogs/libhandle : How to get the handle for a symbolic link ? Subject: Re: xfsprogs/libhandle : How to get the handle for a symbolic link ? Message-ID: <20100601232917.GG1395@dastard> References: <4C04F386.908@cea.fr> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C04F386.908@cea.fr> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail15.adl6.internode.on.net[150.101.137.100] X-Barracuda-Start-Time: 1275434961 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0001 1.0000 -2.0205 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31369 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 01, 2010 at 01:48:22PM +0200, DENIEL Philippe wrote: > Hi, > > I am currently developing a user space nfs server with various > backends. One of this backend module use xfsprogss's libhandle to > implement XFS support. I could do almost everything with > open_by_handle and fd_to_handle, used jointly with ATFILE_SOURCE > functions, but I do have a problem with symbolic links. To build an > xfs object's handle, I get its parent handle (now problem to this) > then I call "openat" to get the fd to the object before calling > fd_to_handle. This works ok, but not for symbolic link : the openat > with follow the link. I added the O_NOFOLLOW flag to openat, but now > openat return ELOOP instead. > I know there is a readlink_by_handle function in libhandle. How > could I build the related handle to be used as argument to it (I > mean, how to build a handle that refers to the symlink itself, not > the object it points to). Doesn't path_to_handle() do what you want? From the man page: "... If the final component of the path name is a symbolic link, the handle returned is that of the link itself." Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0+7RX2+1+fromorbit.com=david@internode.on.net Tue Jun 1 18:48:51 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,MIME_8BIT_HEADER autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o51NmpoY032997 for ; Tue, 1 Jun 2010 18:48:51 -0500 X-ASG-Debug-ID: 1275436413-07d201d90000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 5D6BD1584CA7 for ; Tue, 1 Jun 2010 16:53:34 -0700 (PDT) Received: from mail.internode.on.net (bld-mail16.adl2.internode.on.net [150.101.137.101]) by cuda.sgi.com with ESMTP id KKXwtUXcXCgAWjJF for ; Tue, 01 Jun 2010 16:53:34 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26383831-1927428 for multiple; Wed, 02 Jun 2010 09:21:12 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJbEl-0001mG-5R; Wed, 02 Jun 2010 09:51:11 +1000 Date: Wed, 2 Jun 2010 09:51:11 +1000 From: Dave Chinner To: Pedro =?iso-8859-1?Q?M=2E_L=F3pez?= Cc: Linux Kernel list , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: inconsistent lock state (2.6.34, XFS inode shrinker) Subject: Re: inconsistent lock state (2.6.34, XFS inode shrinker) Message-ID: <20100601235111.GH1395@dastard> References: <20100601121322.1e8f9edf@multimensaje.es> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20100601121322.1e8f9edf@multimensaje.es> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail16.adl2.internode.on.net[150.101.137.101] X-Barracuda-Start-Time: 1275436416 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31369 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 01, 2010 at 12:13:22PM +0200, Pedro M. López wrote: > ================================= > [ INFO: inconsistent lock state ] > 2.6.34 #1 > --------------------------------- > inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-W} usage. > kswapd0/227 [HC0[0]:SC0[0]:HE1:SE1] takes: > (&(&ip->i_iolock)->mr_lock#2){++++?+}, at: [] > xfs_ilock+0x27/0x79 {RECLAIM_FS-ON-W} state was registered at: > [] mark_held_locks+0x52/0x70 > [] lockdep_trace_alloc+0x85/0x9f > [] __alloc_pages_nodemask+0x7b/0x5b5 > [] grab_cache_page_write_begin+0x65/0xaa > [] block_write_begin+0x38/0xcd > [] xfs_vm_write_begin+0x25/0x27 > [] generic_file_buffered_write+0x114/0x271 > [] xfs_file_aio_write+0x4e1/0x70c > [] do_sync_write+0xc6/0x103 > [] vfs_write+0xad/0x172 > [] sys_write+0x45/0x6c > [] system_call_fastpath+0x16/0x1b > irq event stamp: 62175 > hardirqs last enabled at (62175): [] > _raw_spin_unlock_irqrestore+0x3a/0x60 hardirqs last disabled at > (62174): [] _raw_spin_lock_irqsave+0x17/0x58 softirqs > last enabled at (61572): [] __do_softirq+0x127/0x13e > softirqs last disabled at (61543): [] > call_softirq+0x1c/0x28 > > other info that might help us debug this: > 2 locks held by kswapd0/227: > #0: (shrinker_rwsem){++++..}, at: [] > shrink_slab+0x38/0x144 #1: (&xfs_mount_list_lock){++++.-}, at: > [] xfs_reclaim_inode_shrink+0x35/0x128 > > stack backtrace: > Pid: 227, comm: kswapd0 Not tainted 2.6.34 #1 > Call Trace: > [] print_usage_bug+0x1a4/0x1b5 > [] ? save_stack_trace+0x2a/0x47 > [] ? check_usage_forwards+0x0/0xcf > [] mark_lock+0x2ea/0x520 > [] __lock_acquire+0x6c1/0x1607 > [] ? radix_tree_delete+0xd1/0x1d0 > [] lock_acquire+0x57/0x6d > [] ? xfs_ilock+0x27/0x79 > [] down_write_nested+0x2a/0x4d > [] ? xfs_ilock+0x27/0x79 > [] xfs_ilock+0x27/0x79 > [] xfs_ireclaim+0x93/0xb1 > [] xfs_reclaim_inode+0x1de/0x20a > [] xfs_inode_ag_walk+0x8b/0xe6 > [] ? xfs_reclaim_inode+0x0/0x20a > [] xfs_inode_ag_iterator+0x80/0xd3 > [] ? xfs_reclaim_inode+0x0/0x20a > [] xfs_reclaim_inode_shrink+0x61/0x128 > [] shrink_slab+0xd3/0x144 > [] balance_pgdat+0x365/0x59b > [] ? isolate_pages_global+0x0/0x212 > [] kswapd+0x1f2/0x20f > [] ? autoremove_wake_function+0x0/0x34 > [] ? _raw_spin_unlock_irqrestore+0x5b/0x60 > [] ? kswapd+0x0/0x20f > [] kthread+0x7a/0x82 > [] kernel_thread_helper+0x4/0x10 > [] ? restore_args+0x0/0x30 > [] ? kthread+0x0/0x82 > [] ? kernel_thread_helper+0x0/0x10 It's a false positive introduced in 2.6.34 by the inode shrinker. That's one of several different false positive traces in 2.6.34, but I can't do anything about them because the shrinkers require global scope. The patches to customise the shrinker contexts (which avoids all of these warnings) will fix this.... You may as well not run lockdep on anything with an XFS filesystem, as these false positives will occur as soon as memory reclaim triggers and turn lockdep off. Cheers, Dave. -- Dave Chinner david@fromorbit.com From sandeen@sandeen.net Tue Jun 1 22:32:06 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o523W6g7044637 for ; Tue, 1 Jun 2010 22:32:06 -0500 X-ASG-Debug-ID: 1275449812-6c4602a90000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.sandeen.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 7092DA6914F; Tue, 1 Jun 2010 20:36:53 -0700 (PDT) Received: from mail.sandeen.net (64-131-60-146.usfamily.net [64.131.60.146]) by cuda.sgi.com with ESMTP id FJv0rr1kNaMjxsRm; Tue, 01 Jun 2010 20:36:53 -0700 (PDT) Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sandeen.net (Postfix) with ESMTP id C46E84966B6D; Tue, 1 Jun 2010 22:34:30 -0500 (CDT) Message-ID: <4C05D145.6080602@sandeen.net> Date: Tue, 01 Jun 2010 22:34:29 -0500 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.24 (Macintosh/20100228) MIME-Version: 1.0 To: Julia Lawall CC: Alex Elder , xfs-masters@oss.sgi.com, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org X-ASG-Orig-Subj: Re: [xfs-masters] [PATCH 11/17] fs/xfs/quota: Add missing mutex_unlock Subject: Re: [xfs-masters] [PATCH 11/17] fs/xfs/quota: Add missing mutex_unlock References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: 64-131-60-146.usfamily.net[64.131.60.146] X-Barracuda-Start-Time: 1275449814 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31385 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Julia Lawall wrote: > From: Julia Lawall > > Add a mutex_unlock missing on the error path. The use of this lock is > balanced elsewhere in the file. > > The semantic match that finds this problem is as follows: > (http://coccinelle.lip6.fr/) > > // > @@ > expression E1; > @@ > > * mutex_lock(E1,...); > <+... when != E1 > if (...) { > ... when != E1 > * return ...; > } > ...+> > * mutex_unlock(E1,...); > // > > Signed-off-by: Julia Lawall > > --- > The use of ENOMEM rather than -ENOMEM is also a bit odd. All the xfs core code uses positive errors, it's an irix holdover. As things bubble up to the vfs interface, signs get switched. Yeah, it's a bit odd, but nobody dares change it ;) Maybe semantic patching could fix it ;) -Eric From SRS0+zB4A+2+fromorbit.com=david@internode.on.net Tue Jun 1 23:30:40 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o524Uduh047819 for ; Tue, 1 Jun 2010 23:30:40 -0500 X-ASG-Debug-ID: 1275453185-319102420000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 5D85938D174 for ; Tue, 1 Jun 2010 21:33:05 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id kJg7tLlwfJlpTQfP for ; Tue, 01 Jun 2010 21:33:05 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26591548-1927428 for multiple; Wed, 02 Jun 2010 14:03:04 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJfdX-00020g-3k; Wed, 02 Jun 2010 14:33:03 +1000 Date: Wed, 2 Jun 2010 14:33:03 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 01/17] xfs: remove done roadmap item from xfs-delayed-logging-design.txt Subject: Re: [PATCH 01/17] xfs: remove done roadmap item from xfs-delayed-logging-design.txt Message-ID: <20100602043303.GA7011@dastard> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160858.981686872@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100531160858.981686872@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1275453187 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31388 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, May 31, 2010 at 12:07:28PM -0400, Christoph Hellwig wrote: > Signed-off-by: Christoph Hellwig > > Index: xfs/Documentation/filesystems/xfs-delayed-logging-design.txt > =================================================================== > --- xfs.orig/Documentation/filesystems/xfs-delayed-logging-design.txt 2010-05-30 12:23:13.223254240 +0200 > +++ xfs/Documentation/filesystems/xfs-delayed-logging-design.txt 2010-05-30 12:23:57.363005673 +0200 > @@ -794,11 +794,6 @@ designed. > > Roadmap: > > -2.6.35 Inclusion in mainline as an experimental mount option > - => approximately 2-3 months to merge window > - => needs to be in xfs-dev tree in 4-6 weeks > - => code is nearing readiness for review > - > 2.6.37 Remove experimental tag from mount option > => should be roughly 6 months after initial merge > => enough time to: Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From SRS0+WkSn+2+fromorbit.com=david@internode.on.net Tue Jun 1 23:37:35 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o524bYWV048106 for ; Tue, 1 Jun 2010 23:37:34 -0500 X-ASG-Debug-ID: 1275453741-6ffd03a70000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 3B533130D504 for ; Tue, 1 Jun 2010 21:42:21 -0700 (PDT) Received: from mail.internode.on.net (bld-mail18.adl2.internode.on.net [150.101.137.103]) by cuda.sgi.com with ESMTP id CrTToBZTKCUzkyGp for ; Tue, 01 Jun 2010 21:42:21 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26385009-1927428 for multiple; Wed, 02 Jun 2010 14:09:59 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJfkD-00021F-PH; Wed, 02 Jun 2010 14:39:57 +1000 Date: Wed, 2 Jun 2010 14:39:57 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 02/17] xfs: skip writeback from reclaim context Subject: Re: [PATCH 02/17] xfs: skip writeback from reclaim context Message-ID: <20100602043957.GB7011@dastard> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160859.184576507@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100531160859.184576507@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail18.adl2.internode.on.net[150.101.137.103] X-Barracuda-Start-Time: 1275453743 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_SC5_SA210e X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31389 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC5_SA210e Custom Rule SA210e X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, May 31, 2010 at 12:07:29PM -0400, Christoph Hellwig wrote: > Allowing writeback from reclaim context causes massive problems with stack > overflows as we can call into the writeback code which tends to be a heavy > stack user both in the generic code and XFS from random contexts that > perform memory allocations. > > Follow the example of btrfs (and in slightly different form ext4) and refuse > to write out data from reclaim context. This issue should really be handled > by the VM so that we can tune better for this case, but until we get it > sorted out there we have to hack around this in each filesystem with a > complex writeback path. > > Signed-off-by: Christoph Hellwig Yup, I agree that we have to do this for the moment. It hasn't caused any problems in my usual OOM testing, so it seems safe to do. Reviewed-by: Dave Chinner Also worth thinking about is if should be checked in xfs_vm_releasepage() as well to avoid the same stack issues if it triggers allocation... Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0+WkSn+2+fromorbit.com=david@internode.on.net Tue Jun 1 23:39:11 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o524dAht048173 for ; Tue, 1 Jun 2010 23:39:11 -0500 X-ASG-Debug-ID: 1275453696-7972035e0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 5DFB01B15F47 for ; Tue, 1 Jun 2010 21:41:36 -0700 (PDT) Received: from mail.internode.on.net (bld-mail14.adl6.internode.on.net [150.101.137.99]) by cuda.sgi.com with ESMTP id NBIQTD4PCfdti9tp for ; Tue, 01 Jun 2010 21:41:36 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26733856-1927428 for multiple; Wed, 02 Jun 2010 14:11:35 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJflm-00021N-Hj; Wed, 02 Jun 2010 14:41:34 +1000 Date: Wed, 2 Jun 2010 14:41:34 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 03/17] xfs: improve xfs_isilocked Subject: Re: [PATCH 03/17] xfs: improve xfs_isilocked Message-ID: <20100602044134.GC7011@dastard> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160859.397431345@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100531160859.397431345@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail14.adl6.internode.on.net[150.101.137.99] X-Barracuda-Start-Time: 1275453698 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31388 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, May 31, 2010 at 12:07:30PM -0400, Christoph Hellwig wrote: > Use rwsem_is_locked to make the assertations for shared locks work. > > Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From SRS0+NbxA+2+fromorbit.com=david@internode.on.net Tue Jun 1 23:42:52 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o524gpJT048328 for ; Tue, 1 Jun 2010 23:42:52 -0500 X-ASG-Debug-ID: 1275454057-744d03630000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id AB1EF130D5AD for ; Tue, 1 Jun 2010 21:47:38 -0700 (PDT) Received: from mail.internode.on.net (bld-mail17.adl2.internode.on.net [150.101.137.102]) by cuda.sgi.com with ESMTP id MD83QNtFAVjYNs1V for ; Tue, 01 Jun 2010 21:47:38 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26283802-1927428 for multiple; Wed, 02 Jun 2010 14:15:16 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJfpK-00021m-Uo; Wed, 02 Jun 2010 14:45:14 +1000 Date: Wed, 2 Jun 2010 14:45:14 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 04/17] xfs: drop dmapi hooks Subject: Re: [PATCH 04/17] xfs: drop dmapi hooks Message-ID: <20100602044514.GD7011@dastard> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160859.618170031@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100531160859.618170031@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail17.adl2.internode.on.net[150.101.137.102] X-Barracuda-Start-Time: 1275454059 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0001 1.0000 -2.0205 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31389 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, May 31, 2010 at 12:07:31PM -0400, Christoph Hellwig wrote: > Dmapi support was never merged upstream, but we still have a lot of hooks > bloating XFS for it, all over the fast pathes of the filesystem. > > This patch drops over 700 lines of dmapi overhead. If we'll ever get HSM > support in mainline at least the namespace events can be done much saner > in the VFS instead of the individual filesystem, so it's not like this > is much help for future work. > > Signed-off-by: Christoph Hellwig Looks pretty good to me, and it runs through QA just fine. There are still a couple of references to dmapi in comments, but I don't think that's a big issue. Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From SRS0+zB4A+2+fromorbit.com=david@internode.on.net Tue Jun 1 23:43:19 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o524hI9T048541 for ; Tue, 1 Jun 2010 23:43:18 -0500 X-ASG-Debug-ID: 1275453944-799c03540000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id DF54B1B15FB7 for ; Tue, 1 Jun 2010 21:45:44 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id iGnCcf6JyckLZ01T for ; Tue, 01 Jun 2010 21:45:44 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26593015-1927428 for multiple; Wed, 02 Jun 2010 14:15:43 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJfpm-00021u-80; Wed, 02 Jun 2010 14:45:42 +1000 Date: Wed, 2 Jun 2010 14:45:42 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 05/17] xfs: remove unneeded #include statements Subject: Re: [PATCH 05/17] xfs: remove unneeded #include statements Message-ID: <20100602044542.GE7011@dastard> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160900.057188886@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100531160900.057188886@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1275453945 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0209 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31388 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, May 31, 2010 at 12:07:32PM -0400, Christoph Hellwig wrote: > Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From SRS0+NbxA+2+fromorbit.com=david@internode.on.net Wed Jun 2 00:09:24 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5259Ov3052037 for ; Wed, 2 Jun 2010 00:09:24 -0500 X-ASG-Debug-ID: 1275455650-7b8000e20000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 4D0DCAAA60E for ; Tue, 1 Jun 2010 22:14:11 -0700 (PDT) Received: from mail.internode.on.net (bld-mail17.adl2.internode.on.net [150.101.137.102]) by cuda.sgi.com with ESMTP id bOvkKrQDDman5jrz for ; Tue, 01 Jun 2010 22:14:11 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26286577-1927428 for multiple; Wed, 02 Jun 2010 14:41:48 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJgF1-000241-6i; Wed, 02 Jun 2010 15:11:47 +1000 Date: Wed, 2 Jun 2010 15:11:47 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 06/17] xfs: simplify log item descriptor tracking Subject: Re: [PATCH 06/17] xfs: simplify log item descriptor tracking Message-ID: <20100602051147.GF7011@dastard> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160900.319050257@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100531160900.319050257@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail17.adl2.internode.on.net[150.101.137.102] X-Barracuda-Start-Time: 1275455652 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31391 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, May 31, 2010 at 12:07:33PM -0400, Christoph Hellwig wrote: > Currently we track log item descriptor belonging to a transaction using a > complex opencoded chunk allocator. This code has been there since day one > and seems to work around the lack of an efficient slab allocator. > > This patch replaces it with dynamically allocated log item descriptors > from a dedicated slab pool, linked to the transaction by a linked list. > > This allows to greatly simplify the log item descriptor tracking to the > point where it's just a couple hundred lines in xfs_trans.c instead of > a separate file. The external API has also been simplified while we're > at it - the xfs_trans_add_item and xfs_trans_del_item functions to add/ > delete items from a transaction have been simplified to the bare minium, > and the xfs_trans_find_item function is replaced with a direct dereference > of the li_desc field. All debug code walking the list of log items in > a transaction is down to a simple list_for_each_entry. > > Note that we could easily use a singly linked list here instead of the > double linked list from list.h as the fastpath only does deletion from > sequential traversal. But given that we don't have one available as > a library function yet I use the list.h functions for simplicity. > > [the patch applies ontop of Dave's delayed-logging branch] > > Signed-off-by: Christoph Hellwig Looks OK - nothing jumps out at me as being incorrect. I'm still running QA on it, but it looks good so far. Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From SRS0+WkSn+2+fromorbit.com=david@internode.on.net Wed Jun 2 00:11:57 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o525Bvgh052179 for ; Wed, 2 Jun 2010 00:11:57 -0500 X-ASG-Debug-ID: 1275455663-1b2400b10000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id EC5DD1B15F6E for ; Tue, 1 Jun 2010 22:14:23 -0700 (PDT) Received: from mail.internode.on.net (bld-mail15.adl6.internode.on.net [150.101.137.100]) by cuda.sgi.com with ESMTP id iutwIblgCFOLrJs9 for ; Tue, 01 Jun 2010 22:14:23 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 14853167-1927428 for multiple; Wed, 02 Jun 2010 14:44:22 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJgHV-00024O-Fn; Wed, 02 Jun 2010 15:14:21 +1000 Date: Wed, 2 Jun 2010 15:14:21 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 07/17] xfs: merge iop_unpin_remove into iop_unpin Subject: Re: [PATCH 07/17] xfs: merge iop_unpin_remove into iop_unpin Message-ID: <20100602051421.GG7011@dastard> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160900.602159529@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100531160900.602159529@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail15.adl6.internode.on.net[150.101.137.100] X-Barracuda-Start-Time: 1275455664 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31390 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, May 31, 2010 at 12:07:34PM -0400, Christoph Hellwig wrote: > The unpin_remove item operation instances always share most of the > implementation with the respective unpin implementation. So instead > of keeping two different entry points add a remove flag to the unpin > operation and share the code more easily. > > Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From SRS0+NbxA+2+fromorbit.com=david@internode.on.net Wed Jun 2 00:27:51 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o525RpQA053237 for ; Wed, 2 Jun 2010 00:27:51 -0500 X-ASG-Debug-ID: 1275456617-1b0d016e0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id BC7D3146E309 for ; Tue, 1 Jun 2010 22:30:17 -0700 (PDT) Received: from mail.internode.on.net (bld-mail17.adl2.internode.on.net [150.101.137.102]) by cuda.sgi.com with ESMTP id tM1QovGrgOeEGABq for ; Tue, 01 Jun 2010 22:30:17 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26289080-1927428 for multiple; Wed, 02 Jun 2010 15:00:16 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJgWt-00025o-9Y; Wed, 02 Jun 2010 15:30:15 +1000 Date: Wed, 2 Jun 2010 15:30:15 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 08/17] xfs: give xfs_item_ops methods the correct prototypes Subject: Re: [PATCH 08/17] xfs: give xfs_item_ops methods the correct prototypes Message-ID: <20100602053015.GH7011@dastard> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160900.816713118@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100531160900.816713118@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail17.adl2.internode.on.net[150.101.137.102] X-Barracuda-Start-Time: 1275456618 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0014 1.0000 -2.0118 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.01 X-Barracuda-Spam-Status: No, SCORE=-2.01 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31392 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, May 31, 2010 at 12:07:35PM -0400, Christoph Hellwig wrote: > Stop the function pointer casting madness and give all the xfs_item_ops the > correct prototypes. > > Signed-off-by: Christoph Hellwig Nice cleanup. Long overdue. Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From SRS0+WkSn+2+fromorbit.com=david@internode.on.net Wed Jun 2 00:43:05 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o525h4XY054216 for ; Wed, 2 Jun 2010 00:43:05 -0500 X-ASG-Debug-ID: 1275457530-608200540000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id D668638D2D7 for ; Tue, 1 Jun 2010 22:45:30 -0700 (PDT) Received: from mail.internode.on.net (bld-mail18.adl2.internode.on.net [150.101.137.103]) by cuda.sgi.com with ESMTP id F4BfzPUIntfx6X3W for ; Tue, 01 Jun 2010 22:45:30 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26393576-1927428 for multiple; Wed, 02 Jun 2010 15:15:29 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJglb-00026x-U8; Wed, 02 Jun 2010 15:45:27 +1000 Date: Wed, 2 Jun 2010 15:45:27 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 09/17] xfs: give li_cb callbacks the correct prototype Subject: Re: [PATCH 09/17] xfs: give li_cb callbacks the correct prototype Message-ID: <20100602054527.GI7011@dastard> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160901.036824012@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100531160901.036824012@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail18.adl2.internode.on.net[150.101.137.103] X-Barracuda-Start-Time: 1275457531 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0001 1.0000 -2.0205 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31392 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, May 31, 2010 at 12:07:36PM -0400, Christoph Hellwig wrote: > Stop the function pointer casting madness and give all the li_cb instances > correct prototype. > > Signed-off-by: Christoph Hellwig This looks like it applies on top of my xfs_ifree_cluster() bug fix. Looks good, anyway. Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From SRS0+jH3i+2+fromorbit.com=david@internode.on.net Wed Jun 2 00:45:19 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o525jJhV054376 for ; Wed, 2 Jun 2010 00:45:19 -0500 X-ASG-Debug-ID: 1275457805-7bae02300000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 8015BAAC466 for ; Tue, 1 Jun 2010 22:50:05 -0700 (PDT) Received: from mail.internode.on.net (bld-mail12.adl6.internode.on.net [150.101.137.97]) by cuda.sgi.com with ESMTP id 3XaVk8ALi8x6NIcR for ; Tue, 01 Jun 2010 22:50:05 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26473316-1927428 for multiple; Wed, 02 Jun 2010 15:17:42 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJgnl-00027G-Cg; Wed, 02 Jun 2010 15:47:41 +1000 Date: Wed, 2 Jun 2010 15:47:41 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 10/17] xfs: simplify buffer pinning Subject: Re: [PATCH 10/17] xfs: simplify buffer pinning Message-ID: <20100602054741.GJ7011@dastard> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160901.186403532@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100531160901.186403532@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail12.adl6.internode.on.net[150.101.137.97] X-Barracuda-Start-Time: 1275457808 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31393 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, May 31, 2010 at 12:07:37PM -0400, Christoph Hellwig wrote: > Get rid of the xfs_buf_pin/xfs_buf_unpin/xfs_buf_ispin helpers and opencode > them in their only callers, just like we did for the inode pinning a while > ago. Also remove duplicate trace points - the bufitem tracepoints cover > all the information that is present in a buffer tracepoint. > > Signed-off-by: Christoph Hellwig Looks good. Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From SRS0+WkSn+2+fromorbit.com=david@internode.on.net Wed Jun 2 00:55:22 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o525tLDI054842 for ; Wed, 2 Jun 2010 00:55:22 -0500 X-ASG-Debug-ID: 1275458267-608200d80000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 55FE738D3B6 for ; Tue, 1 Jun 2010 22:57:48 -0700 (PDT) Received: from mail.internode.on.net (bld-mail16.adl2.internode.on.net [150.101.137.101]) by cuda.sgi.com with ESMTP id 7zv1mJi2eLtzXoHn for ; Tue, 01 Jun 2010 22:57:48 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26434552-1927428 for multiple; Wed, 02 Jun 2010 15:27:47 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJgxV-00027l-FL; Wed, 02 Jun 2010 15:57:45 +1000 Date: Wed, 2 Jun 2010 15:57:45 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 11/17] xfs: simplify inode to transaction joining Subject: Re: [PATCH 11/17] xfs: simplify inode to transaction joining Message-ID: <20100602055745.GK7011@dastard> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160901.401855518@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100531160901.401855518@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail16.adl2.internode.on.net[150.101.137.101] X-Barracuda-Start-Time: 1275458269 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31394 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, May 31, 2010 at 12:07:38PM -0400, Christoph Hellwig wrote: > Currently we need to either call IHOLD or xfs_trans_ihold on an inode when > joining it to a transaction via xfs_trans_ijoin. > > This patches instead makes xfs_trans_ijoin usable on it's own by doing > an implicity xfs_trans_ihold, which also allows us to drop the third > argument. For the case where we want to hold a reference on the inode > a xfs_trans_ijoin_ref wrapper is added which does the IHOLD and marks > the inode for needing an xfs_iput. In addition to the cleaner interface > to the caller this also simplifies the implementation. > > Signed-off-by: Christoph Hellwig Can't say I'm fond of the xfs_trans_iget() setting of the lock flags, but that's a small price to pay forthe rest of the cleanup. So it looks good to me. Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From SRS0+WkSn+2+fromorbit.com=david@internode.on.net Wed Jun 2 00:59:02 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o525x1jZ055060 for ; Wed, 2 Jun 2010 00:59:02 -0500 X-ASG-Debug-ID: 1275458629-7f8f02630000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 3C392AAC4D1 for ; Tue, 1 Jun 2010 23:03:49 -0700 (PDT) Received: from mail.internode.on.net (bld-mail15.adl6.internode.on.net [150.101.137.100]) by cuda.sgi.com with ESMTP id 5DR5zOZwCxbusmw8 for ; Tue, 01 Jun 2010 23:03:49 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 14860968-1927428 for multiple; Wed, 02 Jun 2010 15:31:27 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJh14-00028A-5R; Wed, 02 Jun 2010 16:01:26 +1000 Date: Wed, 2 Jun 2010 16:01:26 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 12/17] xfs: fix the xfs_log_iovec i_addr type Subject: Re: [PATCH 12/17] xfs: fix the xfs_log_iovec i_addr type Message-ID: <20100602060126.GL7011@dastard> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160901.608320202@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100531160901.608320202@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail15.adl6.internode.on.net[150.101.137.100] X-Barracuda-Start-Time: 1275458631 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0209 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31393 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, May 31, 2010 at 12:07:39PM -0400, Christoph Hellwig wrote: > By making this member a void pointer we can get rid of a lot of pointless > casts. > > Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From SRS0+zB4A+2+fromorbit.com=david@internode.on.net Wed Jun 2 00:59:40 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o525xdWw055121 for ; Wed, 2 Jun 2010 00:59:40 -0500 X-ASG-Debug-ID: 1275458525-5d9700f30000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 9689F38D3D4 for ; Tue, 1 Jun 2010 23:02:06 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id P9Io6eDzoFlVBh4H for ; Tue, 01 Jun 2010 23:02:06 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26602863-1927428 for multiple; Wed, 02 Jun 2010 15:32:05 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJh1g-00028J-Is; Wed, 02 Jun 2010 16:02:04 +1000 Date: Wed, 2 Jun 2010 16:02:04 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 13/17] xfs: kill the unused xlog_debug variable Subject: Re: [PATCH 13/17] xfs: kill the unused xlog_debug variable Message-ID: <20100602060204.GM7011@dastard> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160901.792538953@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100531160901.792538953@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1275458527 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0002 1.0000 -2.0198 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31394 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, May 31, 2010 at 12:07:40PM -0400, Christoph Hellwig wrote: > Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From SRS0+zB4A+2+fromorbit.com=david@internode.on.net Wed Jun 2 01:00:19 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5260JEA055186 for ; Wed, 2 Jun 2010 01:00:19 -0500 X-ASG-Debug-ID: 1275458565-47fc00bb0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id F2E101B160A3 for ; Tue, 1 Jun 2010 23:02:45 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id 7FToo9ei6Aqu8WBz for ; Tue, 01 Jun 2010 23:02:45 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26603013-1927428 for multiple; Wed, 02 Jun 2010 15:32:45 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJh2K-00028W-7s; Wed, 02 Jun 2010 16:02:44 +1000 Date: Wed, 2 Jun 2010 16:02:44 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 14/17] xfs: remove the unused XFS_LOG_SLEEP and XFS_LOG_NOSLEEP flags Subject: Re: [PATCH 14/17] xfs: remove the unused XFS_LOG_SLEEP and XFS_LOG_NOSLEEP flags Message-ID: <20100602060244.GN7011@dastard> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160901.981749888@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100531160901.981749888@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1275458567 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0209 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31394 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, May 31, 2010 at 12:07:41PM -0400, Christoph Hellwig wrote: > Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From SRS0+qEu4+2+fromorbit.com=david@internode.on.net Wed Jun 2 01:00:48 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5260mkW055213 for ; Wed, 2 Jun 2010 01:00:48 -0500 X-ASG-Debug-ID: 1275458594-5d9401360000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 39A0338D3DE for ; Tue, 1 Jun 2010 23:03:15 -0700 (PDT) Received: from mail.internode.on.net (bld-mail19.adl2.internode.on.net [150.101.137.104]) by cuda.sgi.com with ESMTP id BxdaMFYabPZ54gzu for ; Tue, 01 Jun 2010 23:03:15 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26333162-1927428 for multiple; Wed, 02 Jun 2010 15:33:14 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJh2m-00028d-Tn; Wed, 02 Jun 2010 16:03:12 +1000 Date: Wed, 2 Jun 2010 16:03:12 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 15/17] xfs: remove the unused XFS_TRANS_NOSLEEP/XFS_TRANS_WAIT flags Subject: Re: [PATCH 15/17] xfs: remove the unused XFS_TRANS_NOSLEEP/XFS_TRANS_WAIT flags Message-ID: <20100602060312.GO7011@dastard> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160902.179351623@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100531160902.179351623@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail19.adl2.internode.on.net[150.101.137.104] X-Barracuda-Start-Time: 1275458596 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0002 1.0000 -2.0199 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31394 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, May 31, 2010 at 12:07:42PM -0400, Christoph Hellwig wrote: > Signed-off-by: Christoph Hellwig > Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From SRS0+jH3i+2+fromorbit.com=david@internode.on.net Wed Jun 2 01:02:04 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o52624L3055281 for ; Wed, 2 Jun 2010 01:02:04 -0500 X-ASG-Debug-ID: 1275458669-1b26029f0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id AEA591B160B6 for ; Tue, 1 Jun 2010 23:04:30 -0700 (PDT) Received: from mail.internode.on.net (bld-mail12.adl6.internode.on.net [150.101.137.97]) by cuda.sgi.com with ESMTP id O2gDnBge1B3TFogN for ; Tue, 01 Jun 2010 23:04:30 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26475807-1927428 for multiple; Wed, 02 Jun 2010 15:34:26 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJh3x-00028l-4X; Wed, 02 Jun 2010 16:04:25 +1000 Date: Wed, 2 Jun 2010 16:04:25 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 16/17] xfs: remove unused XFS_BMAPI_ flags Subject: Re: [PATCH 16/17] xfs: remove unused XFS_BMAPI_ flags Message-ID: <20100602060425.GP7011@dastard> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160902.372281460@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100531160902.372281460@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail12.adl6.internode.on.net[150.101.137.97] X-Barracuda-Start-Time: 1275458671 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0208 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31394 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, May 31, 2010 at 12:07:43PM -0400, Christoph Hellwig wrote: > Signed-off-by: Christoph Hellwig > Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From SRS0+WkSn+2+fromorbit.com=david@internode.on.net Wed Jun 2 01:09:14 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5269DQt055609 for ; Wed, 2 Jun 2010 01:09:13 -0500 X-ASG-Debug-ID: 1275459240-7bb102f80000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 8EA55AAC50D for ; Tue, 1 Jun 2010 23:14:01 -0700 (PDT) Received: from mail.internode.on.net (bld-mail15.adl6.internode.on.net [150.101.137.100]) by cuda.sgi.com with ESMTP id aCwgqvcKFlLeGJhH for ; Tue, 01 Jun 2010 23:14:01 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 14862743-1927428 for multiple; Wed, 02 Jun 2010 15:41:38 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJhAv-00029P-J5; Wed, 02 Jun 2010 16:11:37 +1000 Date: Wed, 2 Jun 2010 16:11:37 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 17/17] xfs: remove unused delta tracking code in xfs_bmapi Subject: Re: [PATCH 17/17] xfs: remove unused delta tracking code in xfs_bmapi Message-ID: <20100602061137.GQ7011@dastard> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160902.541889062@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100531160902.541889062@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail15.adl6.internode.on.net[150.101.137.100] X-Barracuda-Start-Time: 1275459242 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31395 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, May 31, 2010 at 12:07:44PM -0400, Christoph Hellwig wrote: > This code was introduced four years ago in commit > 3e57ecf640428c01ba1ed8c8fc538447ada1715b without any review and has > been unused since. Remove it just as the rest of the code introduced > in that commit to reduce that stack usage and complexity in this central > piece of code. > > Signed-off-by: Christoph Hellwig Agreed. if we have need for it in the future, it's there in revision history. Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From SRS0+WkSn+2+fromorbit.com=david@internode.on.net Wed Jun 2 01:11:30 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o526BTj4055732 for ; Wed, 2 Jun 2010 01:11:29 -0500 X-ASG-Debug-ID: 1275459376-7ba8030f0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id AFB8D130D447 for ; Tue, 1 Jun 2010 23:16:17 -0700 (PDT) Received: from mail.internode.on.net (bld-mail16.adl2.internode.on.net [150.101.137.101]) by cuda.sgi.com with ESMTP id x2kolfaHNZHXm8zF for ; Tue, 01 Jun 2010 23:16:17 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26437300-1927428 for multiple; Wed, 02 Jun 2010 15:43:54 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJhD7-00029a-Sh; Wed, 02 Jun 2010 16:13:53 +1000 Date: Wed, 2 Jun 2010 16:13:53 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 00/17] pending patches Subject: Re: [PATCH 00/17] pending patches Message-ID: <20100602061353.GR7011@dastard> References: <20100531160727.842750532@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100531160727.842750532@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail16.adl2.internode.on.net[150.101.137.101] X-Barracuda-Start-Time: 1275459378 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31395 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, May 31, 2010 at 12:07:27PM -0400, Christoph Hellwig wrote: > Here's my list of pending patches. Ordering them is getting a bit > difficult as various patches that have been out of a while haven't > been commited yet. Note that some patches require Dave's > > [PATCH] xfs: fix race in inode cluster freeing failing to stale inodes > > applies first. That patch is a clear candidate for something that > should go to Linus ASAP IHMO. That's a fine set of cleanups, Christoph: 79 files changed, 974 insertions(+), 3106 deletions(-) I'm still running it through QA. If it survives another day or so I'll push them all out into my git tree for Alex.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From Philippe.DENIEL@CEA.FR Wed Jun 2 02:18:07 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,J_CHICKENPOX_34, J_CHICKENPOX_44 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o527I609059484 for ; Wed, 2 Jun 2010 02:18:07 -0500 X-ASG-Debug-ID: 1275463232-0d1d00c00000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from oxalide-out.extra.cea.fr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 08BFA38D45E for ; Wed, 2 Jun 2010 00:20:32 -0700 (PDT) Received: from oxalide-out.extra.cea.fr (oxalide-out.extra.cea.fr [132.168.224.1]) by cuda.sgi.com with ESMTP id SY3BLFwflE14oPsy for ; Wed, 02 Jun 2010 00:20:32 -0700 (PDT) Received: from pisaure.intra.cea.fr (pisaure.intra.cea.fr [132.166.88.21]) by oxalide.extra.cea.fr (8.14.2/8.14.2/CEAnet-Internet-out-2.0) with ESMTP id o527KVUf010946 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Wed, 2 Jun 2010 09:20:32 +0200 Received: from muguet2.intra.cea.fr (muguet2.intra.cea.fr [132.166.192.7]) by pisaure.intra.cea.fr (8.14.4/8.14.4) with ESMTP id o527KVZ6016446 for ; Wed, 2 Jun 2010 09:20:31 +0200 (envelope-from Philippe.DENIEL@CEA.FR) Received: from zia.bruyeres.cea.fr (esteban.dam.intra.cea.fr [132.165.76.10]) by muguet2.intra.cea.fr (8.13.8/8.13.8/CEAnet-Intranet-out-1.1) with SMTP id o527KVmU000600 for ; Wed, 2 Jun 2010 09:20:31 +0200 Received: (qmail 22560 invoked from network); 2 Jun 2010 07:20:31 -0000 Message-ID: <4C06063F.1000609@cea.fr> Date: Wed, 02 Jun 2010 09:20:31 +0200 From: DENIEL Philippe Organization: CEA-DAM User-Agent: Thunderbird 2.0.0.6 (X11/20070728) MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfsprogs/libhandle : How to get the handle for a symbolic link ? Subject: Re: xfsprogs/libhandle : How to get the handle for a symbolic link ? References: <4C04F386.908@cea.fr> <20100601232917.GG1395@dastard> In-Reply-To: <20100601232917.GG1395@dastard> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-OriginalArrivalTime: 02 Jun 2010 07:20:31.0710 (UTC) FILETIME=[15BEDFE0:01CB0224] X-Barracuda-Connect: oxalide-out.extra.cea.fr[132.168.224.1] X-Barracuda-Start-Time: 1275463234 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0002 1.0000 -2.0200 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31399 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hi Dave, In fact, path_to_handle does not do the work correctly. Its code is this (extract from xfsprogs-3.0.3 sources) : int path_to_handle( char *path, /* input, path to convert */ void **hanp, /* output, pointer to data */ size_t *hlen) /* output, size of returned data */ { int fd; int result; comarg_t obj; fd = open(path, O_RDONLY); if (fd < 0) return -1; obj.path = path; result = obj_to_handle(path, fd, XFS_IOC_PATH_TO_HANDLE, obj, hanp, hlen); close(fd); return result; } As you see, it performs a open at the beginning, which will results in opening the file pointed by the symlink or returns ENOENT if the path "inside" the symlink does not exist. I tried using open with O_NOFOLLOW option, but it changed nothing, I got ELOOP when opening the file (which is a regular behavior so far). Any other ideas ? Philippe Dave Chinner a écrit : > On Tue, Jun 01, 2010 at 01:48:22PM +0200, DENIEL Philippe wrote: > >> Hi, >> >> I am currently developing a user space nfs server with various >> backends. One of this backend module use xfsprogss's libhandle to >> implement XFS support. I could do almost everything with >> open_by_handle and fd_to_handle, used jointly with ATFILE_SOURCE >> functions, but I do have a problem with symbolic links. To build an >> xfs object's handle, I get its parent handle (now problem to this) >> then I call "openat" to get the fd to the object before calling >> fd_to_handle. This works ok, but not for symbolic link : the openat >> with follow the link. I added the O_NOFOLLOW flag to openat, but now >> openat return ELOOP instead. >> I know there is a readlink_by_handle function in libhandle. How >> could I build the related handle to be used as argument to it (I >> mean, how to build a handle that refers to the symlink itself, not >> the object it points to). >> > > Doesn't path_to_handle() do what you want? From the man page: > > "... If the final component of the path name is a symbolic > link, the handle returned is that of the link itself." > > Cheers, > > Dave. > From BATV+e0e2c835e84ac9826b58+2474+infradead.org+hch@bombadil.srs.infradead.org Wed Jun 2 05:04:21 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o52A4KfF068036 for ; Wed, 2 Jun 2010 05:04:21 -0500 X-ASG-Debug-ID: 1275473207-101903390000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 3466B38DDC2 for ; Wed, 2 Jun 2010 03:06:47 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id 75aYU0pDwRt3ItQO for ; Wed, 02 Jun 2010 03:06:47 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.69 #1 (Red Hat Linux)) id 1OJkqM-0006Uf-3J; Wed, 02 Jun 2010 10:06:38 +0000 Date: Wed, 2 Jun 2010 06:06:38 -0400 From: Christoph Hellwig To: DENIEL Philippe Cc: Dave Chinner , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfsprogs/libhandle : How to get the handle for a symbolic link ? Subject: Re: xfsprogs/libhandle : How to get the handle for a symbolic link ? Message-ID: <20100602100637.GA24014@infradead.org> References: <4C04F386.908@cea.fr> <20100601232917.GG1395@dastard> <4C06063F.1000609@cea.fr> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C06063F.1000609@cea.fr> User-Agent: Mutt/1.5.19 (2009-01-05) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1275473208 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed, Jun 02, 2010 at 09:20:31AM +0200, DENIEL Philippe wrote: > Hi Dave, > > In fact, path_to_handle does not do the work correctly. Its code is this > (extract from xfsprogs-3.0.3 sources) : This is fixed as of xfsprogs 3.1.0. I would recommend to update to the latests xfsprogs (3.1.2) anyway. From BATV+e0e2c835e84ac9826b58+2474+infradead.org+hch@bombadil.srs.infradead.org Wed Jun 2 05:05:50 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o52A5oYp068081 for ; Wed, 2 Jun 2010 05:05:50 -0500 X-ASG-Debug-ID: 1275473298-268700760000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 9F6E01B167C0 for ; Wed, 2 Jun 2010 03:08:18 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id 7iDfVkA1eUNqtMPh for ; Wed, 02 Jun 2010 03:08:18 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.69 #1 (Red Hat Linux)) id 1OJkrs-0006k0-U5; Wed, 02 Jun 2010 10:08:12 +0000 Date: Wed, 2 Jun 2010 06:08:12 -0400 From: Christoph Hellwig To: Dave Chinner Cc: Christoph Hellwig , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 02/17] xfs: skip writeback from reclaim context Subject: Re: [PATCH 02/17] xfs: skip writeback from reclaim context Message-ID: <20100602100812.GA25035@infradead.org> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160859.184576507@bombadil.infradead.org> <20100602043957.GB7011@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100602043957.GB7011@dastard> User-Agent: Mutt/1.5.19 (2009-01-05) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1275473298 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed, Jun 02, 2010 at 02:39:57PM +1000, Dave Chinner wrote: > Also worth thinking about is if should be checked in > xfs_vm_releasepage() as well to avoid the same stack issues if it > triggers allocation... I agree this is a potential problem as well. I did some QA runs with this thrown in, and it causes massive OOM killer wreckage in xfstests. I've also cross-checked btrfs and ext4 and neither one skips ->releasepage from reclaim context. From a.asawaroengchai@sussex.ac.uk Wed Jun 2 07:31:55 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o52CVsoq076886 for ; Wed, 2 Jun 2010 07:31:55 -0500 X-ASG-Debug-ID: 1275482059-26a103dd0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from chip.uscs.susx.ac.uk (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 3CECF1D5552B for ; Wed, 2 Jun 2010 05:34:19 -0700 (PDT) Received: from chip.uscs.susx.ac.uk (chip.uscs.susx.ac.uk [139.184.14.86]) by cuda.sgi.com with ESMTP id JNeuXYgawO66AnKr for ; Wed, 02 Jun 2010 05:34:19 -0700 (PDT) Received: from pactbook.pact.cpes.susx.ac.uk ([139.184.130.15]:49919) by chip.uscs.susx.ac.uk with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.64) (envelope-from ) id L3E0EC-000LVM-26 for xfs@oss.sgi.com; Wed, 02 Jun 2010 13:37:24 +0100 Message-ID: <4C064FC6.5050401@sussex.ac.uk> Date: Wed, 02 Jun 2010 13:34:14 +0100 From: Albert Asawaroengchai User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1.9) Gecko/20100317 Thunderbird/3.0.4 MIME-Version: 1.0 To: xfs@oss.sgi.com X-ASG-Orig-Subj: xfs_quota timer Subject: xfs_quota timer X-Enigmail-Version: 1.0.1 Content-Type: multipart/mixed; boundary="------------090309090803020002090605" X-Sussex: true X-Sussex-transport: remote_smtp_rew X-Barracuda-Connect: chip.uscs.susx.ac.uk[139.184.14.86] X-Barracuda-Start-Time: 1275482060 X-Barracuda-Bayes: INNOCENT GLOBAL 0.1655 1.0000 -1.0145 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.01 X-Barracuda-Spam-Status: No, SCORE=-1.01 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31419 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean This is a multi-part message in MIME format. --------------090309090803020002090605 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Hi, I'm trying to set the timer for a filesystem, but I don't understand how to use the syntax. xfs_quota -x -c 'timer 1w user' /target/filesystem The above doesn't seem to work, can anyone give advice or point me in the right direction? Many thanks, Albert --------------090309090803020002090605 Content-Type: text/x-vcard; charset=utf-8; name="a_asawaroengchai.vcf" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="a_asawaroengchai.vcf" begin:vcard fn:Albert Asawaroengchai n:Asawaroengchai;Albert org:University of Sussex;Physics and Astronomy adr:;;;Brighton;East Sussex;BN1 9QH;United Kingdom email;internet:a.asawaroengchai@sussex.ac.uk title:UNIX System Administrator tel;work:+44 (0)1273 873059 url:http://www.pact.cpes.susx.ac.uk/ version:2.1 end:vcard --------------090309090803020002090605-- From SRS0+WkSn+2+fromorbit.com=david@internode.on.net Wed Jun 2 17:59:51 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o52Mxo1P116549 for ; Wed, 2 Jun 2010 17:59:51 -0500 X-ASG-Debug-ID: 1275519736-567d027d0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 8BB4813F4063 for ; Wed, 2 Jun 2010 16:02:16 -0700 (PDT) Received: from mail.internode.on.net (bld-mail16.adl2.internode.on.net [150.101.137.101]) by cuda.sgi.com with ESMTP id mx3tADeQGqlDmsqQ for ; Wed, 02 Jun 2010 16:02:16 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26521294-1927428 for multiple; Thu, 03 Jun 2010 08:32:15 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJwwr-0003LT-6F; Thu, 03 Jun 2010 09:02:09 +1000 Date: Thu, 3 Jun 2010 09:02:09 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 02/17] xfs: skip writeback from reclaim context Subject: Re: [PATCH 02/17] xfs: skip writeback from reclaim context Message-ID: <20100602230209.GA27325@dastard> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160859.184576507@bombadil.infradead.org> <20100602043957.GB7011@dastard> <20100602100812.GA25035@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100602100812.GA25035@infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail16.adl2.internode.on.net[150.101.137.101] X-Barracuda-Start-Time: 1275519738 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_SC5_SA210e X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31459 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC5_SA210e Custom Rule SA210e X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed, Jun 02, 2010 at 06:08:12AM -0400, Christoph Hellwig wrote: > On Wed, Jun 02, 2010 at 02:39:57PM +1000, Dave Chinner wrote: > > Also worth thinking about is if should be checked in > > xfs_vm_releasepage() as well to avoid the same stack issues if it > > triggers allocation... > > I agree this is a potential problem as well. > > I did some QA runs with this thrown in, and it causes massive OOM killer > wreckage in xfstests. I've also cross-checked btrfs and ext4 and > neither one skips ->releasepage from reclaim context. Did you skip it unconditionally, or only when a transaction was required? The scary part is that I've seen stack traces (i.e. most stack used) through this reclaim path for delalloc conversion even for allocations that are GFP_NOFS and the only thing saving us from deadlocks is th PF_FSTRANS check. Even worse is that shrinker_page_list() will call try_to_release_pages() without checking whether it's allowed to enter the filesystem or not, so we can be doing block allocation in places we've specifically told the memory allocation subsystem not to.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0+qEu4+2+fromorbit.com=david@internode.on.net Wed Jun 2 18:51:00 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o52Np09Y120277 for ; Wed, 2 Jun 2010 18:51:00 -0500 X-ASG-Debug-ID: 1275522807-72a502090000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id D97301B1941C for ; Wed, 2 Jun 2010 16:53:27 -0700 (PDT) Received: from mail.internode.on.net (bld-mail19.adl2.internode.on.net [150.101.137.104]) by cuda.sgi.com with ESMTP id mmUavHm7Tsi2B2K1 for ; Wed, 02 Jun 2010 16:53:27 -0700 (PDT) Received: from dastard (unverified [121.45.174.97]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26423341-1927428 for multiple; Thu, 03 Jun 2010 09:23:26 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OJxkT-0003PP-D0; Thu, 03 Jun 2010 09:53:25 +1000 Date: Thu, 3 Jun 2010 09:53:25 +1000 From: Dave Chinner To: Albert Asawaroengchai Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs_quota timer Subject: Re: xfs_quota timer Message-ID: <20100602235325.GB8287@dastard> References: <4C064FC6.5050401@sussex.ac.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C064FC6.5050401@sussex.ac.uk> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail19.adl2.internode.on.net[150.101.137.104] X-Barracuda-Start-Time: 1275522808 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0007 1.0000 -2.0166 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31462 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed, Jun 02, 2010 at 01:34:14PM +0100, Albert Asawaroengchai wrote: > Hi, > > I'm trying to set the timer for a filesystem, but I don't understand how > to use the syntax. > > xfs_quota -x -c 'timer 1w user' /target/filesystem > > The above doesn't seem to work, can anyone give advice or point me in > the right direction? $ man xfs_quota ..... timer [ -gpu ] [ -bir ] value Grace timers are global in XFS, not per-user or per-group. Dave. -- Dave Chinner david@fromorbit.com From BATV+52e17a1590f5209cb140+2475+infradead.org+hch@bombadil.srs.infradead.org Thu Jun 3 01:50:28 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o536oQOE140151 for ; Thu, 3 Jun 2010 01:50:28 -0500 X-ASG-Debug-ID: 1275547974-691301610000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id BB9CE391DD7 for ; Wed, 2 Jun 2010 23:52:54 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id BZ1KeKLHdLOrmcCe for ; Wed, 02 Jun 2010 23:52:54 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.69 #1 (Red Hat Linux)) id 1OK4IO-0000pS-IC; Thu, 03 Jun 2010 06:52:52 +0000 Date: Thu, 3 Jun 2010 02:52:52 -0400 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com, linux-mm@kvack.org X-ASG-Orig-Subj: Re: [PATCH 02/17] xfs: skip writeback from reclaim context Subject: Re: [PATCH 02/17] xfs: skip writeback from reclaim context Message-ID: <20100603065252.GA28592@infradead.org> References: <20100531160727.842750532@bombadil.infradead.org> <20100531160859.184576507@bombadil.infradead.org> <20100602043957.GB7011@dastard> <20100602100812.GA25035@infradead.org> <20100602230209.GA27325@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100602230209.GA27325@dastard> User-Agent: Mutt/1.5.19 (2009-01-05) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1275547974 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu, Jun 03, 2010 at 09:02:09AM +1000, Dave Chinner wrote: > Did you skip it unconditionally, or only when a transaction was > required? xfs_vm_releasepage is mostly a no-op if no transaction is required. If we have neither delalloc nor unwritten buffer we do not actually enter xfs_page_state_convert, and ->releasepage also doesn't touch unampped buffers at all. > The scary part is that I've seen stack traces (i.e. most stack used) > through this reclaim path for delalloc conversion even for > allocations that are GFP_NOFS and the only thing saving us from > deadlocks is th PF_FSTRANS check. Even worse is that > shrinker_page_list() will call try_to_release_pages() without > checking whether it's allowed to enter the filesystem or not, so we > can be doing block allocation in places we've specifically told the > memory allocation subsystem not to.... s/shrinker_page_list/shrink_page_list/ and s/try_to_release_pages/try_to_release_page/ above. shrink_page_list takes the gfp_mask for try_to_release_page from the scan_control structure passed to it from all the top of the long callchain. I can't find anobvious bug, but this could cause a lot more harm. From aelder@sgi.com Thu Jun 3 11:17:42 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o53GHfTw165289 for ; Thu, 3 Jun 2010 11:17:42 -0500 Received: from cf--amer001e--3.americas.sgi.com (cf--amer001e--3.americas.sgi.com [137.38.100.5]) by relay1.corp.sgi.com (Postfix) with ESMTP id 733EF8F8094; Thu, 3 Jun 2010 09:20:07 -0700 (PDT) Received: from [128.162.232.162] ([128.162.232.162]) by cf--amer001e--3.americas.sgi.com with Microsoft SMTPSVC(6.0.3790.3959); Thu, 3 Jun 2010 11:19:27 -0500 Subject: Re: [PATCH] xfs: improve xfs_isilocked From: Alex Elder Reply-To: aelder@sgi.com To: Christoph Hellwig Cc: xfs@oss.sgi.com In-Reply-To: <20100529095019.GA18859@infradead.org> References: <20100527190533.GB16102@infradead.org> <1275075653.2302.38.camel@doink> <20100529095019.GA18859@infradead.org> Content-Type: text/plain; charset="UTF-8" Date: Thu, 03 Jun 2010 11:19:27 -0500 Message-ID: <1275581967.2468.9.camel@doink> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 03 Jun 2010 16:19:27.0952 (UTC) FILETIME=[8A0F9500:01CB0338] X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Sat, 2010-05-29 at 05:50 -0400, Christoph Hellwig wrote: > On Fri, May 28, 2010 at 02:40:53PM -0500, Alex Elder wrote: > > On Thu, 2010-05-27 at 15:05 -0400, Christoph Hellwig wrote: > > > Use rwsem_is_locked to make the assertations for shared locks work. > > > > So you're changing it so it answers "yes it's locked" > > even it it's only a read lock now, right? . . . > > Now it's "If the exclusive flag is set, but no writer, > > it's not locked. Otherwise if the shared flag is > > set it's locked if rwsem_is_locked() says we are. > > Otherwise (ASSERT(0) and) it is not locked." > > Not exactly. Now it's: > > - if excl is set but shared isn't return true if mr_writer is > set, else false > - if shared is set either alone or together with excl return > if it is locked in any way (rwsem_is_locked). OK, that makes sense, I get it now. > Note that xfs_isilocked can be called like: > > ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED)); > > which means that either excl or shared is fine. > > - if either one or both of excl and shared are set and it's > > > That last part is wrong I think. It should be OK to > > call xfs_isilocked() with neither flag set, in which > > case the result should be 0. > > We can argue about removing the assert, but we currently don't > and should't call xfs_isilocked wit ha 0 argument - it's rather > pointless to do so. Yes, you're right. I'd still say the function should return the right answer even if given an unreasonable request. But that's being pedantic. > > > And if the exclusive > > flag is set, and there *is* a writer, it *is* locked, > > so it should return 1. > > We do that right now. Yup. Thanks for setting me straight. Reviewed-by: Alex Elder From aelder@sgi.com Thu Jun 3 11:59:55 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o53GxthH167045 for ; Thu, 3 Jun 2010 11:59:55 -0500 Received: from cf--amer001e--3.americas.sgi.com (cf--amer001e--3.americas.sgi.com [137.38.100.5]) by relay1.corp.sgi.com (Postfix) with ESMTP id 328A68F808E; Thu, 3 Jun 2010 10:02:21 -0700 (PDT) Received: from [128.162.232.162] ([128.162.232.162]) by cf--amer001e--3.americas.sgi.com with Microsoft SMTPSVC(6.0.3790.3959); Thu, 3 Jun 2010 12:01:47 -0500 Subject: Re: [PATCH 00/17] pending patches From: Alex Elder Reply-To: aelder@sgi.com To: Christoph Hellwig Cc: xfs@oss.sgi.com In-Reply-To: <20100531160727.842750532@bombadil.infradead.org> References: <20100531160727.842750532@bombadil.infradead.org> Content-Type: text/plain; charset="UTF-8" Date: Thu, 03 Jun 2010 12:01:46 -0500 Message-ID: <1275584506.2468.57.camel@doink> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 03 Jun 2010 17:01:47.0125 (UTC) FILETIME=[7386A250:01CB033E] X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, 2010-05-31 at 12:07 -0400, Christoph Hellwig wrote: > Here's my list of pending patches. Ordering them is getting a bit > difficult as various patches that have been out of a while haven't > been commited yet. Note that some patches require Dave's > > [PATCH] xfs: fix race in inode cluster freeing failing to stale inodes > > applies first. That patch is a clear candidate for something that > should go to Linus ASAP IHMO. I agree it should go into 2.6.35. Last I saw on that one, Dave said he was going to update it, so I was waiting for that. I now see it's available on his kernel.org tree so I can grab that and get it in the pipeline to send to Linus soon. I mentioned to you privately a few weeks ago that I had some concerns about removing DMAPI support, and had promised to send a note out to the list to that effect, but regretfully I never did that. I would like to have a chance to submit an alternative to simply removing that code. I recognize it sits in the first part of your patch series, and I will gladly do the work to rearrange them to put it at the end, in order to give me some time to develop my proposed change. Basically what I'd like to do is update the DMAPI support code so that it is much better isolated. I would like to replace the big ugly hunks that lie in common code paths with small function calls, so that their footprint is minimal and not distracting (along the lines of tracing calls). I got a start on doing this, and had hoped to send the result pretty soon after your initial posting of the patch, but that work unfortunately got preempted by other more pressing stuff. I wanted to provide actual code to help make the discussion of the merits of removal versus cleanup more concrete. I now think I'll be able to put something together within the next week or so. I'll wait to hear back from you and others. In the mean time I'll make my way through the rest of the patch series. -Alex From BATV+52e17a1590f5209cb140+2475+infradead.org+hch@bombadil.srs.infradead.org Thu Jun 3 12:05:52 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o53H5pFm167340 for ; Thu, 3 Jun 2010 12:05:52 -0500 X-ASG-Debug-ID: 1275584900-0ffd01090000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 41AD63941D7; Thu, 3 Jun 2010 10:08:20 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id NkEMd0SHa3mWALRi; Thu, 03 Jun 2010 10:08:20 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.69 #1 (Red Hat Linux)) id 1OKDty-0003JU-WF; Thu, 03 Jun 2010 17:08:19 +0000 Date: Thu, 3 Jun 2010 13:08:18 -0400 From: Christoph Hellwig To: Alex Elder Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: dropping dmapi support, was Re: [PATCH 00/17] pending patches Subject: dropping dmapi support, was Re: [PATCH 00/17] pending patches Message-ID: <20100603170818.GA18591@infradead.org> References: <20100531160727.842750532@bombadil.infradead.org> <1275584506.2468.57.camel@doink> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1275584506.2468.57.camel@doink> User-Agent: Mutt/1.5.19 (2009-01-05) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1275584900 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu, Jun 03, 2010 at 12:01:46PM -0500, Alex Elder wrote: > I would like to have a chance to submit an alternative to simply > removing that code. I recognize it sits in the first part of your > patch series, and I will gladly do the work to rearrange them to > put it at the end, in order to give me some time to develop my > proposed change. > > Basically what I'd like to do is update the DMAPI support code > so that it is much better isolated. I would like to replace > the big ugly hunks that lie in common code paths with small > function calls, so that their footprint is minimal and not > distracting (along the lines of tracing calls). > > I got a start on doing this, and had hoped to send the result > pretty soon after your initial posting of the patch, but that > work unfortunately got preempted by other more pressing stuff. > I wanted to provide actual code to help make the discussion > of the merits of removal versus cleanup more concrete. I > now think I'll be able to put something together within the > next week or so. I don't think it's a good idea. I'm happy to not burn all bridges and leave certain code structured in a way that makes adding it easier, but if the hooks are as easy as you say above they can easily live in an out of tree patchset. The general Linux kernel policy is that we don't keep hooks for out of tree code around, and I tend to agree to it. We kept all that dmapi cruft in, and it's never served any purpose for us. I think that HSM support is actually a very useful feature, but the a kernel interface based on the DMAPI specification much less so, and the horrible SGI implementation that used to be in the XFS CVS tree even less so. If you want to push a new one the metadata hooks really need to be entirely outside the low-level filesystem, that is before calling into the namespace inode operations, which is easily doable even while keeping the current DMAPI core. But what's much more difficult is the read/write path. The dmapi code really gets in the way there, and I have additional simplification of this code pending that require this cruft to go away. XFS currently has a needlessly complicated write path, and getting closer to the generic code will help us with lots of things like the upcoming multi page write support. From aelder@sgi.com Thu Jun 3 16:56:13 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o53LuCIv180418 for ; Thu, 3 Jun 2010 16:56:13 -0500 Received: from cf--amer001e--3.americas.sgi.com (cf--amer001e--3.americas.sgi.com [137.38.100.5]) by relay3.corp.sgi.com (Postfix) with ESMTP id CE76CAC009; Thu, 3 Jun 2010 14:58:38 -0700 (PDT) Received: from [128.162.232.162] ([128.162.232.162]) by cf--amer001e--3.americas.sgi.com with Microsoft SMTPSVC(6.0.3790.3959); Thu, 3 Jun 2010 16:58:10 -0500 Subject: Re: [PATCH] xfs: remove lazy per-AG initialization From: Alex Elder Reply-To: aelder@sgi.com To: Dave Chinner Cc: Christoph Hellwig , xfs@oss.sgi.com In-Reply-To: <20100530230915.GA13732@dastard> References: <20100528175108.GA9421@infradead.org> <20100530230915.GA13732@dastard> Content-Type: text/plain; charset="UTF-8" Date: Thu, 03 Jun 2010 16:58:10 -0500 Message-ID: <1275602290.2468.110.camel@doink> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 03 Jun 2010 21:58:10.0989 (UTC) FILETIME=[DB88EDD0:01CB0367] X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, 2010-05-31 at 09:09 +1000, Dave Chinner wrote: > On Fri, May 28, 2010 at 01:51:08PM -0400, Christoph Hellwig wrote: > > Historically XFS initializes the allocator / inode allocator per-AG > > lazily, that is the first time this information is required. For > > filesystems that use lazy superblock counters (which is the default now) > > we already have to walk all AGs to initialize the superblock counters > > on an unclean shutdown. > > Which is not common, so isn't frequently triggered in the normal > mount process. The reason for the lazy initialisation is to speed > the mount process up when there are thousands of AGs. That is, we > avoid thousands of serialised IOs in the mount path. Have you > checked to see what the impact is on the clean mount execution time > is on such a filesystem? It's interesting that the time penalty you're talking about doesn't go away, it just becomes less noticeable because it's aggregated over subsequent access to the AG's. I like the cleanup too, but I agree it would be useful to quantify what this particular impact is. -Alex > FWIW, in the case of an unclean shutdown, we are already on the slow path > due to log recovery so adding IO to read all the headers it not such > a big deal as they have probably been read in during replay, anyway. > > > This patch generalizes that code so that we > > always initialize the per-AG data on mount, and also during growfs so > > that we can remove all the special case code in the fastpath which > > couldn't assume that the per-AG data is already initialized. > > I like the cleanup, but I'm not sure that potentially adding tens of > seconds to the time to mount a really large filesystem is a good > tradeoff... > > Cheers, > > Dave. From SRS0+7xkR+3+fromorbit.com=david@internode.on.net Thu Jun 3 17:31:34 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o53MVXNY181968 for ; Thu, 3 Jun 2010 17:31:34 -0500 X-ASG-Debug-ID: 1275604590-707c022c0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 08D61ABF5D1 for ; Thu, 3 Jun 2010 15:36:31 -0700 (PDT) Received: from mail.internode.on.net (bld-mail18.adl2.internode.on.net [150.101.137.103]) by cuda.sgi.com with ESMTP id RcmfpHunH3EXnxdY for ; Thu, 03 Jun 2010 15:36:31 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26617898-1927428 for multiple; Fri, 04 Jun 2010 08:03:58 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OKIz7-00051S-1L; Fri, 04 Jun 2010 08:33:57 +1000 Date: Fri, 4 Jun 2010 08:33:56 +1000 From: Dave Chinner To: Christoph Hellwig Cc: Alex Elder , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: dropping dmapi support, was Re: [PATCH 00/17] pending patches Subject: Re: dropping dmapi support, was Re: [PATCH 00/17] pending patches Message-ID: <20100603223356.GA14752@dastard> References: <20100531160727.842750532@bombadil.infradead.org> <1275584506.2468.57.camel@doink> <20100603170818.GA18591@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100603170818.GA18591@infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail18.adl2.internode.on.net[150.101.137.103] X-Barracuda-Start-Time: 1275604593 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31549 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu, Jun 03, 2010 at 01:08:18PM -0400, Christoph Hellwig wrote: > On Thu, Jun 03, 2010 at 12:01:46PM -0500, Alex Elder wrote: > > I would like to have a chance to submit an alternative to simply > > removing that code. I recognize it sits in the first part of your > > patch series, and I will gladly do the work to rearrange them to > > put it at the end, in order to give me some time to develop my > > proposed change. > > > > Basically what I'd like to do is update the DMAPI support code > > so that it is much better isolated. I would like to replace > > the big ugly hunks that lie in common code paths with small > > function calls, so that their footprint is minimal and not > > distracting (along the lines of tracing calls). > > > > I got a start on doing this, and had hoped to send the result > > pretty soon after your initial posting of the patch, but that > > work unfortunately got preempted by other more pressing stuff. > > I wanted to provide actual code to help make the discussion > > of the merits of removal versus cleanup more concrete. I > > now think I'll be able to put something together within the > > next week or so. > > I don't think it's a good idea. I'm happy to not burn all bridges > and leave certain code structured in a way that makes adding it easier, > but if the hooks are as easy as you say above they can easily live in > an out of tree patchset. The general Linux kernel policy is that we > don't keep hooks for out of tree code around, and I tend to agree to > it. We kept all that dmapi cruft in, and it's never served any > purpose for us. I think that HSM support is actually a very useful > feature, but the a kernel interface based on the DMAPI specification > much less so, and the horrible SGI implementation that used to be > in the XFS CVS tree even less so. > > If you want to push a new one the metadata hooks really need to be > entirely outside the low-level filesystem, that is before calling > into the namespace inode operations, which is easily doable even > while keeping the current DMAPI core. Regardless of the implementation cruftiness, I think this a much better approach. The events and checks really aren't XFS specific, and putting them at a higher level cleanly separates the filesystem functionality from the event+blocking functionality of DMAPI. > But what's much more difficult is the read/write path. The dmapi > code really gets in the way there, and I have additional simplification > of this code pending that require this cruft to go away. XFS currently > has a needlessly complicated write path, and getting closer to the > generic code will help us with lots of things like the upcoming multi > page write support. That is true, and also intervening higher up in the IO path for DMAPI would avoid a lot of the locking complexity that XFS has to go through now to be able to block on events in dmapi calls. Further, with ext4 gaining a persitent handle interface, adding DMAPI to the VFS would also enable HSMs to work on more than just XFS... Cheers, Dave. -- Dave Chinner david@fromorbit.com From xfs@tlinx.org Thu Jun 3 18:26:27 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o53NQRqi185201 for ; Thu, 3 Jun 2010 18:26:27 -0500 X-ASG-Debug-ID: 1275607734-2b3003a50000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from Ishtar.sc.tlinx.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 4CFC2395E57 for ; Thu, 3 Jun 2010 16:28:54 -0700 (PDT) Received: from Ishtar.sc.tlinx.org (ishtar.tlinx.org [173.164.175.65]) by cuda.sgi.com with ESMTP id IuJ9T2zEEEBEZxmt for ; Thu, 03 Jun 2010 16:28:54 -0700 (PDT) Received: from [192.168.3.12] (Athenae [192.168.3.12]) by Ishtar.sc.tlinx.org (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o53NSjRm018011; Thu, 3 Jun 2010 16:28:47 -0700 Message-ID: <4C083AAD.80906@tlinx.org> Date: Thu, 03 Jun 2010 16:28:45 -0700 From: "Linda A. Walsh" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.8.1.24) Gecko/20100228 Lightning/0.9 Thunderbird/2.0.0.24 Mnenhy/0.7.6.666 MIME-Version: 1.0 To: Christoph Hellwig CC: xfs-oss X-ASG-Orig-Subj: Re: xfsdump -- not enough memory to dump attributes? w/>20G free -- how much does it need? Subject: Re: xfsdump -- not enough memory to dump attributes? w/>20G free -- how much does it need? References: <4BF7D787.4020903@tlinx.org> <20100525164244.GB18666@infradead.org> In-Reply-To: <20100525164244.GB18666@infradead.org> X-Stationery: 0.5.1 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: ishtar.tlinx.org[173.164.175.65] X-Barracuda-Start-Time: 1275607736 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.42 X-Barracuda-Spam-Status: No, SCORE=-1.42 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31552 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean FWIF -- upgrading to the latest tool set seems to have caused these messages to "go away"... Christoph Hellwig wrote: > On Sat, May 22, 2010 at 06:09:27AM -0700, Linda A. Walsh wrote: >> I've seen the problem in the dump below and was wondering what could >> possibly cause this -- because >> shows loads of free memory (>20G)... how much memory do non-root >> attributes take to dump? > > The error comes directly from the libhandle listing routine, which > is a straight forward wrapper around the kernel syscall in current > xfsprogs. > > What xfsprogs version are you using? I noticed your xfsdump is > rather old, so making sure you have recent XFS userspace and > possibly also the kernel would help debugging this. > > Also can you check using strace if the ENOMEM comes directly from > the attr_list_by_handle ioctl? > From SRS0+aHkZ+3+fromorbit.com=dave@internode.on.net Thu Jun 3 18:53:27 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_43 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o53NrQM9186315 for ; Thu, 3 Jun 2010 18:53:27 -0500 X-ASG-Debug-ID: 1275609504-706903660000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id DE23310ABFCB for ; Thu, 3 Jun 2010 16:58:24 -0700 (PDT) Received: from mail.internode.on.net (bld-mail16.adl2.internode.on.net [150.101.137.101]) by cuda.sgi.com with ESMTP id cIoxCvCt1wWzoaav for ; Thu, 03 Jun 2010 16:58:24 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26667832-1927428 for multiple; Fri, 04 Jun 2010 09:25:47 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OKKGH-000569-Di; Fri, 04 Jun 2010 09:55:45 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OKKGF-0003Gn-B1; Fri, 04 Jun 2010 09:55:43 +1000 From: Dave Chinner To: linux-fsdevel@vger.kernel.org Cc: linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: [PATCH 2/6] writeback: Add tracing to balance_dirty_pages Subject: [PATCH 2/6] writeback: Add tracing to balance_dirty_pages Date: Fri, 4 Jun 2010 09:55:24 +1000 Message-Id: <1275609328-12514-3-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1275609328-12514-1-git-send-email-david@fromorbit.com> References: <1275609328-12514-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail16.adl2.internode.on.net[150.101.137.101] X-Barracuda-Start-Time: 1275609505 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31553 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner Tracing high level background writeback events is good, but it doesn't give the entire picture. Add IO dispatched by foreground throttling to the writeback events. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig --- fs/fs-writeback.c | 5 ++ include/trace/events/writeback.h | 80 ++++++++++++++++++++++++++++++++++++++ mm/page-writeback.c | 4 ++ 3 files changed, 89 insertions(+), 0 deletions(-) diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index ebfaed8..7cd4585 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -819,7 +819,11 @@ static long wb_writeback(struct bdi_writeback *wb, wbc.more_io = 0; wbc.nr_to_write = MAX_WRITEBACK_PAGES; wbc.pages_skipped = 0; + + trace_wbc_writeback_start(&wbc); writeback_inodes_wb(wb, &wbc); + trace_wbc_writeback_written(&wbc); + args->nr_pages -= MAX_WRITEBACK_PAGES - wbc.nr_to_write; wrote += MAX_WRITEBACK_PAGES - wbc.nr_to_write; @@ -847,6 +851,7 @@ static long wb_writeback(struct bdi_writeback *wb, if (!list_empty(&wb->b_more_io)) { inode = list_entry(wb->b_more_io.prev, struct inode, i_list); + trace_wbc_writeback_wait(&wbc); inode_wait_for_writeback(inode); } spin_unlock(&inode_lock); diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h index df76457..72c1a12 100644 --- a/include/trace/events/writeback.h +++ b/include/trace/events/writeback.h @@ -7,6 +7,9 @@ #include #include +struct wb_writeback_args; +struct bdi_work; + TRACE_EVENT(writeback_queue, TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_args *args), @@ -165,6 +168,83 @@ TRACE_EVENT(writeback_bdi_register, TP_printk("%s: %s", __entry->name, __entry->start ? "registered" : "unregistered") ); + +/* pass flags explicitly */ +DECLARE_EVENT_CLASS(wbc_class, + TP_PROTO(struct writeback_control *wbc), + TP_ARGS(wbc), + TP_STRUCT__entry( + __field(unsigned int, wbc) + __array(char, name, 16) + __field(long, nr_to_write) + __field(long, pages_skipped) + __field(int, sb) + __field(int, sync_mode) + __field(int, nonblocking) + __field(int, encountered_congestion) + __field(int, for_kupdate) + __field(int, for_background) + __field(int, for_reclaim) + __field(int, range_cyclic) + __field(int, more_io) + __field(unsigned long, older_than_this) + __field(long, range_start) + __field(long, range_end) + ), + + TP_fast_assign( + char *__name = "(none)"; + + __entry->wbc = (unsigned long)wbc & 0xffff; + if (wbc->bdi) + strncpy(__entry->name, dev_name(wbc->bdi->dev), 16); + else + strncpy(__entry->name, __name, 16); + __entry->nr_to_write = wbc->nr_to_write; + __entry->pages_skipped = wbc->pages_skipped; + __entry->sb = !!wbc->sb; + __entry->sync_mode = wbc->sync_mode; + __entry->for_kupdate = wbc->for_kupdate; + __entry->for_background = wbc->for_background; + __entry->for_reclaim = wbc->for_reclaim; + __entry->range_cyclic = wbc->range_cyclic; + __entry->more_io = wbc->more_io; + __entry->older_than_this = wbc->older_than_this ? + *wbc->older_than_this : 0; + __entry->range_start = (long)wbc->range_start; + __entry->range_end = (long)wbc->range_end; + ), + + TP_printk("dev %s wbc=%x towrt=%ld skip=%ld sb=%d mode=%d kupd=%d " + "bgrd=%d reclm=%d cyclic=%d more=%d older=0x%lx " + "start=0x%lx end=0x%lx", + __entry->name, + __entry->wbc, + __entry->nr_to_write, + __entry->pages_skipped, + __entry->sb, + __entry->sync_mode, + __entry->for_kupdate, + __entry->for_background, + __entry->for_reclaim, + __entry->range_cyclic, + __entry->more_io, + __entry->older_than_this, + __entry->range_start, + __entry->range_end) +) + +#define DEFINE_WBC_EVENT(name) \ +DEFINE_EVENT(wbc_class, name, \ + TP_PROTO(struct writeback_control *wbc), \ + TP_ARGS(wbc)) +DEFINE_WBC_EVENT(wbc_writeback_start); +DEFINE_WBC_EVENT(wbc_writeback_written); +DEFINE_WBC_EVENT(wbc_writeback_wait); +DEFINE_WBC_EVENT(wbc_balance_dirty_start); +DEFINE_WBC_EVENT(wbc_balance_dirty_written); +DEFINE_WBC_EVENT(wbc_balance_dirty_wait); + #endif /* _TRACE_WRITEBACK_H */ /* This part must be outside protection */ diff --git a/mm/page-writeback.c b/mm/page-writeback.c index b289310..68eb727 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -34,6 +34,7 @@ #include #include #include +#include /* * After a CPU has dirtied this many pages, balance_dirty_pages_ratelimited @@ -536,11 +537,13 @@ static void balance_dirty_pages(struct address_space *mapping, * threshold otherwise wait until the disk writes catch * up. */ + trace_wbc_balance_dirty_start(&wbc); if (bdi_nr_reclaimable > bdi_thresh) { writeback_inodes_wbc(&wbc); pages_written += write_chunk - wbc.nr_to_write; get_dirty_limits(&background_thresh, &dirty_thresh, &bdi_thresh, bdi); + trace_wbc_balance_dirty_written(&wbc); } /* @@ -566,6 +569,7 @@ static void balance_dirty_pages(struct address_space *mapping, if (pages_written >= write_chunk) break; /* We've done our duty */ + trace_wbc_balance_dirty_wait(&wbc); __set_current_state(TASK_INTERRUPTIBLE); io_schedule_timeout(pause); -- 1.7.1 From SRS0+YyHg+3+fromorbit.com=dave@internode.on.net Thu Jun 3 18:53:35 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o53NrYjb186331 for ; Thu, 3 Jun 2010 18:53:35 -0500 X-ASG-Debug-ID: 1275609361-4946035e0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 9517F384B58 for ; Thu, 3 Jun 2010 16:56:02 -0700 (PDT) Received: from mail.internode.on.net (bld-mail12.adl6.internode.on.net [150.101.137.97]) by cuda.sgi.com with ESMTP id W2gmMYlwieGEXSaO for ; Thu, 03 Jun 2010 16:56:02 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26707899-1927428 for multiple; Fri, 04 Jun 2010 09:25:56 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OKKGR-00056A-F0; Fri, 04 Jun 2010 09:55:55 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OKKGF-0003Gp-E1; Fri, 04 Jun 2010 09:55:43 +1000 From: Dave Chinner To: linux-fsdevel@vger.kernel.org Cc: linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: [PATCH 3/6] writeback: Add tracing to write_cache_pages Subject: [PATCH 3/6] writeback: Add tracing to write_cache_pages Date: Fri, 4 Jun 2010 09:55:25 +1000 Message-Id: <1275609328-12514-4-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1275609328-12514-1-git-send-email-david@fromorbit.com> References: <1275609328-12514-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail12.adl6.internode.on.net[150.101.137.97] X-Barracuda-Start-Time: 1275609363 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31554 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Add a trace event to the ->writepage loop in write_cache_pages to give visibility into how the ->writepage call is changing variables within the writeback control structure. Of most interest is how wbc->nr_to_write changes from call to call, especially with filesystems that write multiple pages in ->writepage. Signed-off-by: Dave Chinner --- include/trace/events/writeback.h | 1 + mm/page-writeback.c | 1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h index 72c1a12..5dda40e 100644 --- a/include/trace/events/writeback.h +++ b/include/trace/events/writeback.h @@ -244,6 +244,7 @@ DEFINE_WBC_EVENT(wbc_writeback_wait); DEFINE_WBC_EVENT(wbc_balance_dirty_start); DEFINE_WBC_EVENT(wbc_balance_dirty_written); DEFINE_WBC_EVENT(wbc_balance_dirty_wait); +DEFINE_WBC_EVENT(wbc_writepage); #endif /* _TRACE_WRITEBACK_H */ diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 68eb727..caaf954 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -921,6 +921,7 @@ continue_unlock: if (!clear_page_dirty_for_io(page)) goto continue_unlock; + trace_wbc_writepage(wbc); ret = (*writepage)(page, wbc, data); if (unlikely(ret)) { if (ret == AOP_WRITEPAGE_ACTIVATE) { -- 1.7.1 From SRS0+/7kT+3+fromorbit.com=dave@internode.on.net Thu Jun 3 18:53:35 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o53NrZjQ186334 for ; Thu, 3 Jun 2010 18:53:35 -0500 X-ASG-Debug-ID: 1275609362-4983037b0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 406F3384B58 for ; Thu, 3 Jun 2010 16:56:03 -0700 (PDT) Received: from mail.internode.on.net (bld-mail17.adl2.internode.on.net [150.101.137.102]) by cuda.sgi.com with ESMTP id tokZV4zzOZPFxBtj for ; Thu, 03 Jun 2010 16:56:03 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26525820-1927428 for multiple; Fri, 04 Jun 2010 09:25:57 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OKKGR-00056O-Lp; Fri, 04 Jun 2010 09:55:55 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OKKGP-0003Gz-KL; Fri, 04 Jun 2010 09:55:53 +1000 From: Dave Chinner To: linux-fsdevel@vger.kernel.org Cc: linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: [PATCH 6/6] writeback: limit write_cache_pages integrity scanning to current EOF Subject: [PATCH 6/6] writeback: limit write_cache_pages integrity scanning to current EOF Date: Fri, 4 Jun 2010 09:55:28 +1000 Message-Id: <1275609328-12514-7-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1275609328-12514-1-git-send-email-david@fromorbit.com> References: <1275609328-12514-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail17.adl2.internode.on.net[150.101.137.102] X-Barracuda-Start-Time: 1275609364 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31554 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner sync can currently take a really long time if a concurrent writer is extending a file. The problem is that the dirty pages on the address space grow in the same direction as write_cache_pages scans, so if the writer keeps ahead of writeback, the writeback will not terminate until the writer stops adding dirty pages. For a data integrity sync, we only need to write the pages dirty at the time we start the writeback, so we can stop scanning once we get to the page that was at the end of the file at the time the scan started. This will prevent operations like copying a large file preventing sync from completing as it will not write back pages that were dirtied after the sync was started. This does not impact the existing integrity guarantees, as any dirty page (old or new) within the EOF range at the start of the scan will still be captured. This patch will not prevent sync from blocking on large writes into holes. That requires more complex intervention while this patch only addresses the common append-case of this sync holdoff. Signed-off-by: Dave Chinner --- mm/page-writeback.c | 15 +++++++++++++++ 1 files changed, 15 insertions(+), 0 deletions(-) diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 0fe713d..c97e973 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -855,7 +855,22 @@ int write_cache_pages(struct address_space *mapping, if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX) range_whole = 1; cycled = 1; /* ignore range_cyclic tests */ + + /* + * If this is a data integrity sync, cap the writeback to the + * current end of file. Any extension to the file that occurs + * after this is a new write and we don't need to write those + * pages out to fulfil our data integrity requirements. If we + * try to write them out, we can get stuck in this scan until + * the concurrent writer stops adding dirty pages and extending + * EOF. + */ + if (wbc->sync_mode == WB_SYNC_ALL && + wbc->range_end == LLONG_MAX) { + end = i_size_read(mapping->host) >> PAGE_CACHE_SHIFT; + } } + retry: done_index = index; while (!done && (index <= end)) { -- 1.7.1 From SRS0+aHkZ+3+fromorbit.com=dave@internode.on.net Thu Jun 3 18:53:35 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-4.7 required=5.0 tests=BAYES_00,J_CHICKENPOX_44, J_CHICKENPOX_45,LOCAL_GNU_PATCH autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o53NrZFb186333 for ; Thu, 3 Jun 2010 18:53:35 -0500 X-ASG-Debug-ID: 1275609512-7085035c0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id BE09610ABFD1 for ; Thu, 3 Jun 2010 16:58:33 -0700 (PDT) Received: from mail.internode.on.net (bld-mail15.adl6.internode.on.net [150.101.137.100]) by cuda.sgi.com with ESMTP id BA4PllNi17mxUEL4 for ; Thu, 03 Jun 2010 16:58:33 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 15090836-1927428 for multiple; Fri, 04 Jun 2010 09:25:56 +0930 (CST) Received: from [192.168.1.9] (helo=disturbed) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OKKGR-000567-8a; Fri, 04 Jun 2010 09:55:55 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OKKGF-0003Gl-8W; Fri, 04 Jun 2010 09:55:43 +1000 From: Dave Chinner To: linux-fsdevel@vger.kernel.org Cc: linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: [PATCH 1/6] writeback: initial tracing support Subject: [PATCH 1/6] writeback: initial tracing support Date: Fri, 4 Jun 2010 09:55:23 +1000 Message-Id: <1275609328-12514-2-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1275609328-12514-1-git-send-email-david@fromorbit.com> References: <1275609328-12514-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail15.adl6.internode.on.net[150.101.137.100] X-Barracuda-Start-Time: 1275609514 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31553 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: From: Jens Axboe Trace queue/sched/exec parts of the writeback loop. This provides insight into when and why flusher threads are scheduled to run. e.g a sync invocation leaves a trace like: sync-2798 [006] 611323.335713: writeback_queue: 253:16: pages=87879, sb=0, kupdate=0, range_cyclic=0 for_background=0 sync-2798 [006] 611323.335718: writeback_sched: work=37c0, task=task sync-2798 [006] 611323.335817: writeback_queue: 8:0: pages=92680, sb=1, kupdate=0, range_cyclic=-1 for_background=0 sync-2798 [006] 611323.335819: writeback_sched: work=35c0, task=task sync-2798 [006] 611323.335855: writeback_queue: 253:16: pages=92680, sb=1, kupdate=0, range_cyclic=-1 for_background=0 sync-2798 [006] 611323.335857: writeback_sched: work=36c0, task=task sync-2798 [006] 611323.335890: writeback_queue: 8:0: pages=9223372036854775807, sb=1, kupdate=0, range_cyclic=0 for_background=0 sync-2798 [006] 611323.335891: writeback_sched: work=fe58, task=task sync-2798 [006] 611323.377341: writeback_queue: 253:16: pages=9223372036854775807, sb=1, kupdate=0, range_cyclic=0 for_background=0 sync-2798 [006] 611323.377346: writeback_sched: work=fe58, task=task This also lays the foundation for adding more writeback tracing to provide deeper insight into the whole writeback path. Signed-off-by: Jens Axboe Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig --- fs/fs-writeback.c | 45 ++++++++-- include/trace/events/writeback.h | 171 ++++++++++++++++++++++++++++++++++++++ mm/backing-dev.c | 3 + 3 files changed, 209 insertions(+), 10 deletions(-) create mode 100644 include/trace/events/writeback.h diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index ea8592b..ebfaed8 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -26,15 +26,9 @@ #include #include #include +#include #include "internal.h" -#define inode_to_bdi(inode) ((inode)->i_mapping->backing_dev_info) - -/* - * We don't actually have pdflush, but this one is exported though /proc... - */ -int nr_pdflush_threads; - /* * Passed into wb_writeback(), essentially a subset of writeback_control */ @@ -63,6 +57,21 @@ struct bdi_work { unsigned long state; /* flag bits, see WS_* */ }; +/* + * Include the creation of the trace points after defining the bdi_work and + * wb_writeback_args structures so that the definitions remain local to this + * file. + */ +#define CREATE_TRACE_POINTS +#include + +#define inode_to_bdi(inode) ((inode)->i_mapping->backing_dev_info) + +/* + * We don't actually have pdflush, but this one is exported though /proc... + */ +int nr_pdflush_threads; + enum { WS_USED_B = 0, WS_ONSTACK_B, @@ -137,6 +146,8 @@ static void wb_work_complete(struct bdi_work *work) static void wb_clear_pending(struct bdi_writeback *wb, struct bdi_work *work) { + trace_writeback_clear(work); + /* * The caller has retrieved the work arguments from this work, * drop our reference. If this is the last ref, delete and free it @@ -172,12 +183,16 @@ static void bdi_queue_work(struct backing_dev_info *bdi, struct bdi_work *work) * If the default thread isn't there, make sure we add it. When * it gets created and wakes up, we'll run this work. */ - if (unlikely(list_empty_careful(&bdi->wb_list))) + if (unlikely(list_empty_careful(&bdi->wb_list))) { + trace_writeback_sched(bdi, work, "default"); wake_up_process(default_backing_dev_info.wb.task); - else { + } else { struct bdi_writeback *wb = &bdi->wb; + struct task_struct *task = wb->task; - if (wb->task) + trace_writeback_sched(bdi, work, task ? "task" : "notask"); + + if (task) wake_up_process(wb->task); } } @@ -205,6 +220,7 @@ static void bdi_alloc_queue_work(struct backing_dev_info *bdi, work = kmalloc(sizeof(*work), GFP_ATOMIC); if (work) { bdi_work_init(work, args); + trace_writeback_queue(bdi, args); bdi_queue_work(bdi, work); if (wait) bdi_wait_on_work_clear(work); @@ -245,6 +261,7 @@ static void bdi_sync_writeback(struct backing_dev_info *bdi, bdi_work_init(&work, &args); work.state |= WS_ONSTACK; + trace_writeback_queue(bdi, &args); bdi_queue_work(bdi, &work); bdi_wait_on_work_clear(&work); } @@ -914,6 +931,8 @@ long wb_do_writeback(struct bdi_writeback *wb, int force_wait) struct wb_writeback_args args = work->args; int post_clear; + trace_writeback_exec(work); + /* * Override sync mode, in case we must wait for completion */ @@ -957,9 +976,13 @@ int bdi_writeback_task(struct bdi_writeback *wb) unsigned long wait_jiffies = -1UL; long pages_written; + trace_writeback_thread_start(1); + while (!kthread_should_stop()) { pages_written = wb_do_writeback(wb, 0); + trace_writeback_pages_written(pages_written); + if (pages_written) last_active = jiffies; else if (wait_jiffies != -1UL) { @@ -989,6 +1012,8 @@ int bdi_writeback_task(struct bdi_writeback *wb) try_to_freeze(); } + trace_writeback_thread_start(0); + return 0; } diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h new file mode 100644 index 0000000..df76457 --- /dev/null +++ b/include/trace/events/writeback.h @@ -0,0 +1,171 @@ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM writeback + +#if !defined(_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_WRITEBACK_H + +#include +#include + +TRACE_EVENT(writeback_queue, + + TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_args *args), + + TP_ARGS(bdi, args), + + TP_STRUCT__entry( + __array(char, name, 16) + __field(long, nr_pages) + __field(int, sb) + __field(int, sync_mode) + __field(int, for_kupdate) + __field(int, range_cyclic) + __field(int, for_background) + ), + + TP_fast_assign( + strncpy(__entry->name, dev_name(bdi->dev), 16); + __entry->nr_pages = args->nr_pages; + __entry->sb = !!args->sb; + __entry->for_kupdate = args->for_kupdate; + __entry->range_cyclic = args->range_cyclic; + __entry->for_background = args->for_background; + ), + + TP_printk("%s: pages=%ld, sb=%d, kupdate=%d, range_cyclic=%d " + "for_background=%d", __entry->name, __entry->nr_pages, + __entry->sb, __entry->for_kupdate, + __entry->range_cyclic, __entry->for_background) +); + +TRACE_EVENT(writeback_sched, + + TP_PROTO(struct backing_dev_info *bdi, struct bdi_work *work, + const char *msg), + + TP_ARGS(bdi, work, msg), + + TP_STRUCT__entry( + __array(char, name, 16) + __field(unsigned int, work) + __array(char, task, 8) + ), + + TP_fast_assign( + strncpy(__entry->name, dev_name(bdi->dev), 16); + __entry->work = (unsigned long) work & 0xffff; + snprintf(__entry->task, 8, "%s", msg); + ), + + TP_printk("work=%x, task=%s", __entry->work, __entry->task) +); + +TRACE_EVENT(writeback_exec, + + TP_PROTO(struct bdi_work *work), + + TP_ARGS(work), + + TP_STRUCT__entry( + __field(unsigned int, work) + __field(long, nr_pages) + __field(int, sb) + __field(int, sync_mode) + __field(int, for_kupdate) + __field(int, range_cyclic) + __field(int, for_background) + ), + + TP_fast_assign( + __entry->work = (unsigned long) work & 0xffff; + __entry->nr_pages = work->args.nr_pages; + __entry->sb = !!work->args.sb; + __entry->for_kupdate = work->args.for_kupdate; + __entry->range_cyclic = work->args.range_cyclic; + __entry->for_background = work->args.for_background; + + ), + + TP_printk("work=%x pages=%ld, sb=%d, kupdate=%d, range_cyclic=%d" + " for_background=%d", __entry->work, + __entry->nr_pages, __entry->sb, __entry->for_kupdate, + __entry->range_cyclic, __entry->for_background) +); + +TRACE_EVENT(writeback_clear, + + TP_PROTO(struct bdi_work *work), + + TP_ARGS(work), + + TP_STRUCT__entry( + __field(struct bdi_work *, work) + __field(int, refs) + ), + + TP_fast_assign( + __entry->work = work; + __entry->refs = atomic_read(&work->pending); + ), + + TP_printk("work=%p, refs=%d", __entry->work, __entry->refs) +); + +TRACE_EVENT(writeback_pages_written, + + TP_PROTO(long pages_written), + + TP_ARGS(pages_written), + + TP_STRUCT__entry( + __field(long, pages) + ), + + TP_fast_assign( + __entry->pages = pages_written; + ), + + TP_printk("%ld", __entry->pages) +); + + +TRACE_EVENT(writeback_thread_start, + + TP_PROTO(int start), + + TP_ARGS(start), + + TP_STRUCT__entry( + __field(int, start) + ), + + TP_fast_assign( + __entry->start = start; + ), + + TP_printk("%s", __entry->start ? "started" : "exited") +); + +TRACE_EVENT(writeback_bdi_register, + + TP_PROTO(const char *name, int start), + + TP_ARGS(name, start), + + TP_STRUCT__entry( + __array(char, name, 16) + __field(int, start) + ), + + TP_fast_assign( + strncpy(__entry->name, name, 16); + __entry->start = start; + ), + + TP_printk("%s: %s", __entry->name, + __entry->start ? "registered" : "unregistered") +); +#endif /* _TRACE_WRITEBACK_H */ + +/* This part must be outside protection */ +#include diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 660a87a..1f7723b 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -10,6 +10,7 @@ #include #include #include +#include static atomic_long_t bdi_seq = ATOMIC_LONG_INIT(0); @@ -585,6 +586,7 @@ int bdi_register(struct backing_dev_info *bdi, struct device *parent, bdi_debug_register(bdi, dev_name(dev)); set_bit(BDI_registered, &bdi->state); + trace_writeback_bdi_register(dev_name(dev), 1); exit: return ret; } @@ -647,6 +649,7 @@ static void bdi_prune_sb(struct backing_dev_info *bdi) void bdi_unregister(struct backing_dev_info *bdi) { if (bdi->dev) { + trace_writeback_bdi_register(dev_name(bdi->dev), 0); bdi_prune_sb(bdi); if (!bdi_cap_flush_forker(bdi)) -- 1.7.1 From SRS0+aHkZ+3+fromorbit.com=dave@internode.on.net Thu Jun 3 18:53:45 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.1 required=5.0 tests=BAYES_00,SUBJ_ATTENTION autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o53NrjSB186382 for ; Thu, 3 Jun 2010 18:53:45 -0500 X-ASG-Debug-ID: 1275609523-706403320000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id D22B210ABFE1 for ; Thu, 3 Jun 2010 16:58:43 -0700 (PDT) Received: from mail.internode.on.net (bld-mail16.adl2.internode.on.net [150.101.137.101]) by cuda.sgi.com with ESMTP id PbUVsNkkkt6NjChc for ; Thu, 03 Jun 2010 16:58:43 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26667863-1927428 for multiple; Fri, 04 Jun 2010 09:26:07 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OKKGR-00056J-Ip; Fri, 04 Jun 2010 09:55:55 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OKKGF-0003Gs-G8; Fri, 04 Jun 2010 09:55:43 +1000 From: Dave Chinner To: linux-fsdevel@vger.kernel.org Cc: linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: [PATCH 4/6] writeback: pay attention to wbc->nr_to_write in write_cache_pages Subject: [PATCH 4/6] writeback: pay attention to wbc->nr_to_write in write_cache_pages Date: Fri, 4 Jun 2010 09:55:26 +1000 Message-Id: <1275609328-12514-5-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1275609328-12514-1-git-send-email-david@fromorbit.com> References: <1275609328-12514-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail16.adl2.internode.on.net[150.101.137.101] X-Barracuda-Start-Time: 1275609524 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31553 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner If a filesystem writes more than one page in ->writepage, write_cache_pages fails to notice this and continues to attempt writeback when wbc->nr_to_write has gone negative - this trace was captured from XFS: wbc_writeback_start: towrt=1024 wbc_writepage: towrt=1024 wbc_writepage: towrt=0 wbc_writepage: towrt=-1 wbc_writepage: towrt=-5 wbc_writepage: towrt=-21 wbc_writepage: towrt=-85 This has adverse effects on filesystem writeback behaviour. write_cache_pages() needs to terminate after a certain number of pages are written, not after a certain number of calls to ->writepage are made. This is a regression introduced by 17bc6c30cf6bfffd816bdc53682dd46fc34a2cf4 ("vfs: Add no_nrwrite_index_update writeback control flag"), but cannot be reverted directly due to subsequent bug fixes that have gone in on top of it. This commit adds a ->writepage tracepoint inside write_cache_pages() (how the above trace was generated) and does the revert manually leaving the subsequent bug fixes intact. ext4 is not affected by this as a previous commit in the series stops ext4 from using the generic function. Signed-off-by: Dave Chinner --- include/linux/writeback.h | 9 --------- include/trace/events/ext4.h | 5 +---- mm/page-writeback.c | 15 +++++---------- 3 files changed, 6 insertions(+), 23 deletions(-) diff --git a/include/linux/writeback.h b/include/linux/writeback.h index cc97d6c..52e82f3 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -56,15 +56,6 @@ struct writeback_control { unsigned for_reclaim:1; /* Invoked from the page allocator */ unsigned range_cyclic:1; /* range_start is cyclic */ unsigned more_io:1; /* more io to be dispatched */ - /* - * write_cache_pages() won't update wbc->nr_to_write and - * mapping->writeback_index if no_nrwrite_index_update - * is set. write_cache_pages() may write more than we - * requested and we want to make sure nr_to_write and - * writeback_index are updated in a consistent manner - * so we use a single control to update them - */ - unsigned no_nrwrite_index_update:1; /* * For WB_SYNC_ALL, the sb must always be pinned. For WB_SYNC_NONE, diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index f5b1ba9..f3865c7 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -306,7 +306,6 @@ TRACE_EVENT(ext4_da_writepages_result, __field( int, pages_written ) __field( long, pages_skipped ) __field( char, more_io ) - __field( char, no_nrwrite_index_update ) __field( pgoff_t, writeback_index ) ), @@ -317,16 +316,14 @@ TRACE_EVENT(ext4_da_writepages_result, __entry->pages_written = pages_written; __entry->pages_skipped = wbc->pages_skipped; __entry->more_io = wbc->more_io; - __entry->no_nrwrite_index_update = wbc->no_nrwrite_index_update; __entry->writeback_index = inode->i_mapping->writeback_index; ), - TP_printk("dev %s ino %lu ret %d pages_written %d pages_skipped %ld more_io %d no_nrwrite_index_update %d writeback_index %lu", + TP_printk("dev %s ino %lu ret %d pages_written %d pages_skipped %ld more_io %d writeback_index %lu", jbd2_dev_to_name(__entry->dev), (unsigned long) __entry->ino, __entry->ret, __entry->pages_written, __entry->pages_skipped, __entry->more_io, - __entry->no_nrwrite_index_update, (unsigned long) __entry->writeback_index) ); diff --git a/mm/page-writeback.c b/mm/page-writeback.c index caaf954..0fe713d 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -839,7 +839,6 @@ int write_cache_pages(struct address_space *mapping, pgoff_t done_index; int cycled; int range_whole = 0; - long nr_to_write = wbc->nr_to_write; pagevec_init(&pvec, 0); if (wbc->range_cyclic) { @@ -940,11 +939,10 @@ continue_unlock: done = 1; break; } - } + } - if (nr_to_write > 0) { - nr_to_write--; - if (nr_to_write == 0 && + if (wbc->nr_to_write > 0) { + if (--wbc->nr_to_write == 0 && wbc->sync_mode == WB_SYNC_NONE) { /* * We stop writing back only if we are @@ -975,11 +973,8 @@ continue_unlock: end = writeback_index - 1; goto retry; } - if (!wbc->no_nrwrite_index_update) { - if (wbc->range_cyclic || (range_whole && nr_to_write > 0)) - mapping->writeback_index = done_index; - wbc->nr_to_write = nr_to_write; - } + if (wbc->range_cyclic || (range_whole && wbc->nr_to_write > 0)) + mapping->writeback_index = done_index; return ret; } -- 1.7.1 From SRS0+aHkZ+3+fromorbit.com=dave@internode.on.net Thu Jun 3 18:53:54 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_21 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o53NrsY3186403 for ; Thu, 3 Jun 2010 18:53:54 -0500 X-ASG-Debug-ID: 1275609361-4988037a0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 538B3384B55 for ; Thu, 3 Jun 2010 16:56:02 -0700 (PDT) Received: from mail.internode.on.net (bld-mail14.adl6.internode.on.net [150.101.137.99]) by cuda.sgi.com with ESMTP id FlBR1k03vSnwEcyz for ; Thu, 03 Jun 2010 16:56:02 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26976017-1927428 for multiple; Fri, 04 Jun 2010 09:25:56 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OKKGH-000566-98; Fri, 04 Jun 2010 09:55:45 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OKKGF-0003Gj-6Y; Fri, 04 Jun 2010 09:55:43 +1000 From: Dave Chinner To: linux-fsdevel@vger.kernel.org Cc: linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: [PATCH 0/6] writeback: tracing and fixes V3. Subject: [PATCH 0/6] writeback: tracing and fixes V3. Date: Fri, 4 Jun 2010 09:55:22 +1000 Message-Id: <1275609328-12514-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 X-Barracuda-Connect: bld-mail14.adl6.internode.on.net[150.101.137.99] X-Barracuda-Start-Time: 1275609363 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31554 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean This series contains the initial writeback tracing patches from Jens, as well as the extensions I added to provide visibility into writeback control structures as the are used by the writeback code. The visibility given is sufficient to understand what is happening in the writeback path - what path is writing data, what path is blocking on congestion, etc, and to determine the differences in behaviour for different sync modes and calling contexts. This tracing really needs to be integrated into mainline so that anyone can improve the tracing as they use it to track down problems in our convoluted writeback paths. The remaining patches are fixes to problems that the new tracing highlighted. Version 3: - added comment to tracepoint creation to explain the unusual placement of the tracepoint header file include. - separated out ->writepage tracepoint addition into it's own patch. - dropped ext4 write_cache_pages separation as it is now in mainline. - removed ext4 tracing references to wbc->no_nrwrite_index_update as they weren't removed in the write_cache_pages patch in mainline. - fixed commit message for write_cache_pages patch - added more information to commit message for sync hold-off fixup. Version 2: - included ext4 write_cache_pages separation patch from Ted Ts'o. - moved CREATE_TRACE_POINTS into fs-writeback.c as suggested by Christoph Hellwig. - moved include of trace/events/writeback.h until after structure definitions in fs-writeback.c - manually revert changes made to write_cache_pages() in 17bc6c30cf6bfffd816bdc53682dd46fc34a2cf4 that caused the regression. This restores the convention that if the fs writes back more than a single page, it subtracts (nr_written - 1) from wbc->nr_to_write, as suggested by Andrew Morton. - added patch to prevent sync from looping in write_cache_pages chasing a moving tail when an appending write workload is running concurrently with sync. From SRS0+fJ0p+3+fromorbit.com=dave@internode.on.net Thu Jun 3 18:58:36 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o53NwZGF186604 for ; Thu, 3 Jun 2010 18:58:36 -0500 X-ASG-Debug-ID: 1275609362-493e03730000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 99C29384B5B for ; Thu, 3 Jun 2010 16:56:03 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id SHjnJq78yvIrsh8D for ; Thu, 03 Jun 2010 16:56:03 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26833812-1927428 for multiple; Fri, 04 Jun 2010 09:25:57 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OKKGR-00056K-J5; Fri, 04 Jun 2010 09:55:55 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OKKGP-0003Gv-Ie; Fri, 04 Jun 2010 09:55:53 +1000 From: Dave Chinner To: linux-fsdevel@vger.kernel.org Cc: linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: [PATCH 5/6] xfs: remove nr_to_write writeback windup. Subject: [PATCH 5/6] xfs: remove nr_to_write writeback windup. Date: Fri, 4 Jun 2010 09:55:27 +1000 Message-Id: <1275609328-12514-6-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1275609328-12514-1-git-send-email-david@fromorbit.com> References: <1275609328-12514-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1275609364 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31554 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner Now that the background flush code has been fixed, we shouldn't need to silently multiply the wbc->nr_to_write to get good writeback. Remove that code. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig --- fs/xfs/linux-2.6/xfs_aops.c | 8 -------- 1 files changed, 0 insertions(+), 8 deletions(-) diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c index 089eaca..4c89db3 100644 --- a/fs/xfs/linux-2.6/xfs_aops.c +++ b/fs/xfs/linux-2.6/xfs_aops.c @@ -1366,14 +1366,6 @@ xfs_vm_writepage( if (!page_has_buffers(page)) create_empty_buffers(page, 1 << inode->i_blkbits, 0); - - /* - * VM calculation for nr_to_write seems off. Bump it way - * up, this gets simple streaming writes zippy again. - * To be reviewed again after Jens' writeback changes. - */ - wbc->nr_to_write *= 4; - /* * Convert delayed allocate, unwritten or unmapped space * to real space and flush out to disk. -- 1.7.1 From lizf@cn.fujitsu.com Thu Jun 3 20:05:39 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5415dCj189984 for ; Thu, 3 Jun 2010 20:05:39 -0500 X-ASG-Debug-ID: 1275613684-26a5006a0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from song.cn.fujitsu.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 1F6C63934C6 for ; Thu, 3 Jun 2010 18:08:05 -0700 (PDT) Received: from song.cn.fujitsu.com (cn.fujitsu.com [222.73.24.84]) by cuda.sgi.com with ESMTP id s0m2Xpb3foFjnJMY for ; Thu, 03 Jun 2010 18:08:05 -0700 (PDT) Received: from tang.cn.fujitsu.com (tang.cn.fujitsu.com [10.167.250.3]) by song.cn.fujitsu.com (Postfix) with ESMTP id 66BB6170138; Fri, 4 Jun 2010 09:08:03 +0800 (CST) Received: from fnst.cn.fujitsu.com (tang.cn.fujitsu.com [127.0.0.1]) by tang.cn.fujitsu.com (8.14.3/8.13.1) with ESMTP id o5415n4q001800; Fri, 4 Jun 2010 09:05:49 +0800 Received: from lizf.localdomain (unknown [10.167.141.140]) by fnst.cn.fujitsu.com (Postfix) with ESMTPA id C682F10C10D; Fri, 4 Jun 2010 09:11:56 +0800 (CST) Message-ID: <4C085289.9040000@cn.fujitsu.com> Date: Fri, 04 Jun 2010 09:10:33 +0800 From: Li Zefan User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1b3pre) Gecko/20090513 Fedora/3.0-2.3.beta2.fc11 Thunderbird/3.0b2 MIME-Version: 1.0 To: Dave Chinner CC: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: Re: [PATCH 1/6] writeback: initial tracing support Subject: Re: [PATCH 1/6] writeback: initial tracing support References: <1275609328-12514-1-git-send-email-david@fromorbit.com> <1275609328-12514-2-git-send-email-david@fromorbit.com> In-Reply-To: <1275609328-12514-2-git-send-email-david@fromorbit.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: cn.fujitsu.com[222.73.24.84] X-Barracuda-Start-Time: 1275613688 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31558 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean > +TRACE_EVENT(writeback_queue, > + > + TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_args *args), > + > + TP_ARGS(bdi, args), > + > + TP_STRUCT__entry( > + __array(char, name, 16) > + __field(long, nr_pages) > + __field(int, sb) > + __field(int, sync_mode) > + __field(int, for_kupdate) > + __field(int, range_cyclic) > + __field(int, for_background) > + ), > + > + TP_fast_assign( > + strncpy(__entry->name, dev_name(bdi->dev), 16); Should use strlcpy() ? > + __entry->nr_pages = args->nr_pages; > + __entry->sb = !!args->sb; > + __entry->for_kupdate = args->for_kupdate; > + __entry->range_cyclic = args->range_cyclic; > + __entry->for_background = args->for_background; > + ), > + > + TP_printk("%s: pages=%ld, sb=%d, kupdate=%d, range_cyclic=%d " > + "for_background=%d", __entry->name, __entry->nr_pages, > + __entry->sb, __entry->for_kupdate, > + __entry->range_cyclic, __entry->for_background) > +); > + > +TRACE_EVENT(writeback_sched, > + > + TP_PROTO(struct backing_dev_info *bdi, struct bdi_work *work, > + const char *msg), > + > + TP_ARGS(bdi, work, msg), > + > + TP_STRUCT__entry( > + __array(char, name, 16) > + __field(unsigned int, work) > + __array(char, task, 8) > + ), > + > + TP_fast_assign( > + strncpy(__entry->name, dev_name(bdi->dev), 16); ditto > + __entry->work = (unsigned long) work & 0xffff; > + snprintf(__entry->task, 8, "%s", msg); > + ), > + > + TP_printk("work=%x, task=%s", __entry->work, __entry->task) > +); ... > +TRACE_EVENT(writeback_bdi_register, > + > + TP_PROTO(const char *name, int start), > + > + TP_ARGS(name, start), > + > + TP_STRUCT__entry( > + __array(char, name, 16) > + __field(int, start) > + ), > + > + TP_fast_assign( > + strncpy(__entry->name, name, 16); ditto > + __entry->start = start; > + ), > + > + TP_printk("%s: %s", __entry->name, > + __entry->start ? "registered" : "unregistered") > +); From SRS0+eH4A+4+fromorbit.com=david@internode.on.net Thu Jun 3 20:22:04 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-4.7 required=5.0 tests=BAYES_00,J_CHICKENPOX_44, J_CHICKENPOX_45,LOCAL_GNU_PATCH autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o541M3f4190800 for ; Thu, 3 Jun 2010 20:22:04 -0500 X-ASG-Debug-ID: 1275614670-268700b70000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id F09513960F4 for ; Thu, 3 Jun 2010 18:24:30 -0700 (PDT) Received: from mail.internode.on.net (bld-mail16.adl2.internode.on.net [150.101.137.101]) by cuda.sgi.com with ESMTP id e38iCeflcmyTLjIt for ; Thu, 03 Jun 2010 18:24:30 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26679896-1927428 for multiple; Fri, 04 Jun 2010 10:54:28 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OKLdw-0005Cz-QH; Fri, 04 Jun 2010 11:24:16 +1000 Date: Fri, 4 Jun 2010 11:24:16 +1000 From: Dave Chinner To: Li Zefan Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: Re: [PATCH 1/6] writeback: initial tracing support Subject: Re: [PATCH 1/6] writeback: initial tracing support Message-ID: <20100604012416.GB19651@dastard> References: <1275609328-12514-1-git-send-email-david@fromorbit.com> <1275609328-12514-2-git-send-email-david@fromorbit.com> <4C085289.9040000@cn.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C085289.9040000@cn.fujitsu.com> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail16.adl2.internode.on.net[150.101.137.101] X-Barracuda-Start-Time: 1275614671 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31560 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jun 04, 2010 at 09:10:33AM +0800, Li Zefan wrote: > > +TRACE_EVENT(writeback_queue, > > + > > + TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_args *args), > > + > > + TP_ARGS(bdi, args), > > + > > + TP_STRUCT__entry( > > + __array(char, name, 16) > > + __field(long, nr_pages) > > + __field(int, sb) > > + __field(int, sync_mode) > > + __field(int, for_kupdate) > > + __field(int, range_cyclic) > > + __field(int, for_background) > > + ), > > + > > + TP_fast_assign( > > + strncpy(__entry->name, dev_name(bdi->dev), 16); > > Should use strlcpy() ? Don't care. Updated patch below. Cheers, Dave. -- Dave Chinner david@fromorbit.com writeback: initial tracing support From: Jens Axboe Trace queue/sched/exec parts of the writeback loop. This provides insight into when and why flusher threads are scheduled to run. e.g a sync invocation leaves a trace like: sync-2798 [006] 611323.335713: writeback_queue: 253:16: pages=87879, sb=0, kupdate=0, range_cyclic=0 for_background=0 sync-2798 [006] 611323.335718: writeback_sched: work=37c0, task=task sync-2798 [006] 611323.335817: writeback_queue: 8:0: pages=92680, sb=1, kupdate=0, range_cyclic=-1 for_background=0 sync-2798 [006] 611323.335819: writeback_sched: work=35c0, task=task sync-2798 [006] 611323.335855: writeback_queue: 253:16: pages=92680, sb=1, kupdate=0, range_cyclic=-1 for_background=0 sync-2798 [006] 611323.335857: writeback_sched: work=36c0, task=task sync-2798 [006] 611323.335890: writeback_queue: 8:0: pages=9223372036854775807, sb=1, kupdate=0, range_cyclic=0 for_background=0 sync-2798 [006] 611323.335891: writeback_sched: work=fe58, task=task sync-2798 [006] 611323.377341: writeback_queue: 253:16: pages=9223372036854775807, sb=1, kupdate=0, range_cyclic=0 for_background=0 sync-2798 [006] 611323.377346: writeback_sched: work=fe58, task=task This also lays the foundation for adding more writeback tracing to provide deeper insight into the whole writeback path. Signed-off-by: Jens Axboe Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig --- fs/fs-writeback.c | 45 ++++++++-- include/trace/events/writeback.h | 171 ++++++++++++++++++++++++++++++++++++++ mm/backing-dev.c | 3 + 3 files changed, 209 insertions(+), 10 deletions(-) diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index ea8592b..ebfaed8 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -26,15 +26,9 @@ #include #include #include +#include #include "internal.h" -#define inode_to_bdi(inode) ((inode)->i_mapping->backing_dev_info) - -/* - * We don't actually have pdflush, but this one is exported though /proc... - */ -int nr_pdflush_threads; - /* * Passed into wb_writeback(), essentially a subset of writeback_control */ @@ -63,6 +57,21 @@ struct bdi_work { unsigned long state; /* flag bits, see WS_* */ }; +/* + * Include the creation of the trace points after defining the bdi_work and + * wb_writeback_args structures so that the definitions remain local to this + * file. + */ +#define CREATE_TRACE_POINTS +#include + +#define inode_to_bdi(inode) ((inode)->i_mapping->backing_dev_info) + +/* + * We don't actually have pdflush, but this one is exported though /proc... + */ +int nr_pdflush_threads; + enum { WS_USED_B = 0, WS_ONSTACK_B, @@ -137,6 +146,8 @@ static void wb_work_complete(struct bdi_work *work) static void wb_clear_pending(struct bdi_writeback *wb, struct bdi_work *work) { + trace_writeback_clear(work); + /* * The caller has retrieved the work arguments from this work, * drop our reference. If this is the last ref, delete and free it @@ -172,12 +183,16 @@ static void bdi_queue_work(struct backing_dev_info *bdi, struct bdi_work *work) * If the default thread isn't there, make sure we add it. When * it gets created and wakes up, we'll run this work. */ - if (unlikely(list_empty_careful(&bdi->wb_list))) + if (unlikely(list_empty_careful(&bdi->wb_list))) { + trace_writeback_sched(bdi, work, "default"); wake_up_process(default_backing_dev_info.wb.task); - else { + } else { struct bdi_writeback *wb = &bdi->wb; + struct task_struct *task = wb->task; - if (wb->task) + trace_writeback_sched(bdi, work, task ? "task" : "notask"); + + if (task) wake_up_process(wb->task); } } @@ -205,6 +220,7 @@ static void bdi_alloc_queue_work(struct backing_dev_info *bdi, work = kmalloc(sizeof(*work), GFP_ATOMIC); if (work) { bdi_work_init(work, args); + trace_writeback_queue(bdi, args); bdi_queue_work(bdi, work); if (wait) bdi_wait_on_work_clear(work); @@ -245,6 +261,7 @@ static void bdi_sync_writeback(struct backing_dev_info *bdi, bdi_work_init(&work, &args); work.state |= WS_ONSTACK; + trace_writeback_queue(bdi, &args); bdi_queue_work(bdi, &work); bdi_wait_on_work_clear(&work); } @@ -914,6 +931,8 @@ long wb_do_writeback(struct bdi_writeback *wb, int force_wait) struct wb_writeback_args args = work->args; int post_clear; + trace_writeback_exec(work); + /* * Override sync mode, in case we must wait for completion */ @@ -957,9 +976,13 @@ int bdi_writeback_task(struct bdi_writeback *wb) unsigned long wait_jiffies = -1UL; long pages_written; + trace_writeback_thread_start(1); + while (!kthread_should_stop()) { pages_written = wb_do_writeback(wb, 0); + trace_writeback_pages_written(pages_written); + if (pages_written) last_active = jiffies; else if (wait_jiffies != -1UL) { @@ -989,6 +1012,8 @@ int bdi_writeback_task(struct bdi_writeback *wb) try_to_freeze(); } + trace_writeback_thread_start(0); + return 0; } diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h new file mode 100644 index 0000000..6f510fa --- /dev/null +++ b/include/trace/events/writeback.h @@ -0,0 +1,171 @@ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM writeback + +#if !defined(_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_WRITEBACK_H + +#include +#include + +TRACE_EVENT(writeback_queue, + + TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_args *args), + + TP_ARGS(bdi, args), + + TP_STRUCT__entry( + __array(char, name, 16) + __field(long, nr_pages) + __field(int, sb) + __field(int, sync_mode) + __field(int, for_kupdate) + __field(int, range_cyclic) + __field(int, for_background) + ), + + TP_fast_assign( + strlcpy(__entry->name, dev_name(bdi->dev), 16); + __entry->nr_pages = args->nr_pages; + __entry->sb = !!args->sb; + __entry->for_kupdate = args->for_kupdate; + __entry->range_cyclic = args->range_cyclic; + __entry->for_background = args->for_background; + ), + + TP_printk("%s: pages=%ld, sb=%d, kupdate=%d, range_cyclic=%d " + "for_background=%d", __entry->name, __entry->nr_pages, + __entry->sb, __entry->for_kupdate, + __entry->range_cyclic, __entry->for_background) +); + +TRACE_EVENT(writeback_sched, + + TP_PROTO(struct backing_dev_info *bdi, struct bdi_work *work, + const char *msg), + + TP_ARGS(bdi, work, msg), + + TP_STRUCT__entry( + __array(char, name, 16) + __field(unsigned int, work) + __array(char, task, 8) + ), + + TP_fast_assign( + strlcpy(__entry->name, dev_name(bdi->dev), 16); + __entry->work = (unsigned long) work & 0xffff; + snprintf(__entry->task, 8, "%s", msg); + ), + + TP_printk("work=%x, task=%s", __entry->work, __entry->task) +); + +TRACE_EVENT(writeback_exec, + + TP_PROTO(struct bdi_work *work), + + TP_ARGS(work), + + TP_STRUCT__entry( + __field(unsigned int, work) + __field(long, nr_pages) + __field(int, sb) + __field(int, sync_mode) + __field(int, for_kupdate) + __field(int, range_cyclic) + __field(int, for_background) + ), + + TP_fast_assign( + __entry->work = (unsigned long) work & 0xffff; + __entry->nr_pages = work->args.nr_pages; + __entry->sb = !!work->args.sb; + __entry->for_kupdate = work->args.for_kupdate; + __entry->range_cyclic = work->args.range_cyclic; + __entry->for_background = work->args.for_background; + + ), + + TP_printk("work=%x pages=%ld, sb=%d, kupdate=%d, range_cyclic=%d" + " for_background=%d", __entry->work, + __entry->nr_pages, __entry->sb, __entry->for_kupdate, + __entry->range_cyclic, __entry->for_background) +); + +TRACE_EVENT(writeback_clear, + + TP_PROTO(struct bdi_work *work), + + TP_ARGS(work), + + TP_STRUCT__entry( + __field(struct bdi_work *, work) + __field(int, refs) + ), + + TP_fast_assign( + __entry->work = work; + __entry->refs = atomic_read(&work->pending); + ), + + TP_printk("work=%p, refs=%d", __entry->work, __entry->refs) +); + +TRACE_EVENT(writeback_pages_written, + + TP_PROTO(long pages_written), + + TP_ARGS(pages_written), + + TP_STRUCT__entry( + __field(long, pages) + ), + + TP_fast_assign( + __entry->pages = pages_written; + ), + + TP_printk("%ld", __entry->pages) +); + + +TRACE_EVENT(writeback_thread_start, + + TP_PROTO(int start), + + TP_ARGS(start), + + TP_STRUCT__entry( + __field(int, start) + ), + + TP_fast_assign( + __entry->start = start; + ), + + TP_printk("%s", __entry->start ? "started" : "exited") +); + +TRACE_EVENT(writeback_bdi_register, + + TP_PROTO(const char *name, int start), + + TP_ARGS(name, start), + + TP_STRUCT__entry( + __array(char, name, 16) + __field(int, start) + ), + + TP_fast_assign( + strlcpy(__entry->name, name, 16); + __entry->start = start; + ), + + TP_printk("%s: %s", __entry->name, + __entry->start ? "registered" : "unregistered") +); +#endif /* _TRACE_WRITEBACK_H */ + +/* This part must be outside protection */ +#include diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 660a87a..1f7723b 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -10,6 +10,7 @@ #include #include #include +#include static atomic_long_t bdi_seq = ATOMIC_LONG_INIT(0); @@ -585,6 +586,7 @@ int bdi_register(struct backing_dev_info *bdi, struct device *parent, bdi_debug_register(bdi, dev_name(dev)); set_bit(BDI_registered, &bdi->state); + trace_writeback_bdi_register(dev_name(dev), 1); exit: return ret; } @@ -647,6 +649,7 @@ static void bdi_prune_sb(struct backing_dev_info *bdi) void bdi_unregister(struct backing_dev_info *bdi) { if (bdi->dev) { + trace_writeback_bdi_register(dev_name(bdi->dev), 0); bdi_prune_sb(bdi); if (!bdi_cap_flush_forker(bdi)) From SRS0+760P+4+fromorbit.com=david@internode.on.net Thu Jun 3 20:40:05 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o541e597191479 for ; Thu, 3 Jun 2010 20:40:05 -0500 X-ASG-Debug-ID: 1275615752-269800f10000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 35999396208 for ; Thu, 3 Jun 2010 18:42:32 -0700 (PDT) Received: from mail.internode.on.net (bld-mail12.adl6.internode.on.net [150.101.137.97]) by cuda.sgi.com with ESMTP id LKc7aXvCelveaLFF for ; Thu, 03 Jun 2010 18:42:32 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26721980-1927428 for multiple; Fri, 04 Jun 2010 11:12:31 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OKLvZ-0005Ec-Jx; Fri, 04 Jun 2010 11:42:29 +1000 Date: Fri, 4 Jun 2010 11:42:29 +1000 From: Dave Chinner To: Alex Elder Cc: Christoph Hellwig , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfs: remove lazy per-AG initialization Subject: Re: [PATCH] xfs: remove lazy per-AG initialization Message-ID: <20100604014229.GD19651@dastard> References: <20100528175108.GA9421@infradead.org> <20100530230915.GA13732@dastard> <1275602290.2468.110.camel@doink> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1275602290.2468.110.camel@doink> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail12.adl6.internode.on.net[150.101.137.97] X-Barracuda-Start-Time: 1275615754 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31560 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu, Jun 03, 2010 at 04:58:10PM -0500, Alex Elder wrote: > On Mon, 2010-05-31 at 09:09 +1000, Dave Chinner wrote: > > On Fri, May 28, 2010 at 01:51:08PM -0400, Christoph Hellwig wrote: > > > Historically XFS initializes the allocator / inode allocator per-AG > > > lazily, that is the first time this information is required. For > > > filesystems that use lazy superblock counters (which is the default now) > > > we already have to walk all AGs to initialize the superblock counters > > > on an unclean shutdown. > > > > Which is not common, so isn't frequently triggered in the normal > > mount process. The reason for the lazy initialisation is to speed > > the mount process up when there are thousands of AGs. That is, we > > avoid thousands of serialised IOs in the mount path. Have you > > checked to see what the impact is on the clean mount execution time > > is on such a filesystem? > > It's interesting that the time penalty you're talking about > doesn't go away, it just becomes less noticeable because it's > aggregated over subsequent access to the AG's. Right, the penalty is currently taken at access time, rather than at mount time. One way to test the impact is to compare the runtime difference for xfstests with MKFS_OPTIONS="-d agsize=16m" to bump up the AG count and see how much additional IO and time it takes... Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0+eH4A+4+fromorbit.com=david@internode.on.net Fri Jun 4 00:56:14 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o545uEJt204052 for ; Fri, 4 Jun 2010 00:56:14 -0500 X-ASG-Debug-ID: 1275631273-7a4d019e0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 2F825AC4873 for ; Thu, 3 Jun 2010 23:01:13 -0700 (PDT) Received: from mail.internode.on.net (bld-mail16.adl2.internode.on.net [150.101.137.101]) by cuda.sgi.com with ESMTP id ettrtgYfD0DWO3O8 for ; Thu, 03 Jun 2010 23:01:13 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26715218-1927428 for multiple; Fri, 04 Jun 2010 15:28:39 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OKPvR-0005UH-PS; Fri, 04 Jun 2010 15:58:37 +1000 Date: Fri, 4 Jun 2010 15:58:37 +1000 From: Dave Chinner To: aelder@sgi.com Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: [GIT] fixes and cleanups for xfs-dev Subject: [GIT] fixes and cleanups for xfs-dev Message-ID: <20100604055837.GB20641@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail16.adl2.internode.on.net[150.101.137.101] X-Barracuda-Start-Time: 1275631275 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31577 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hi Alex, Here are the latest list of reviewed patches for the xfs-dev tree. The inode cluster freeing fix really needs to go to Linus for .35 (and a .34-stable update is probably needed). You can leave Christoph's cleanups out if further discussion is needed - it is the above bug fix I'm pushing this branch out for. Cheers, Dave. The following changes since commit fb3b504adeee942e55393396fea8fdf406acf037: xfs: fix access to upper inodes without inode64 (2010-05-28 15:19:56 -0500) are available in the git repository at: git://git.kernel.org/pub/scm/git/linux/dgc/xfs for-dev Christoph Hellwig (17): xfs: remove done roadmap item from xfs-delayed-logging-design.txt xfs: skip writeback from reclaim context xfs: improve xfs_isilocked xfs: drop dmapi hooks xfs: remove unneeded #include statements xfs: simplify log item descriptor tracking xfs: merge iop_unpin_remove into iop_unpin xfs: give xfs_item_ops methods the correct prototypes xfs: give li_cb callbacks the correct prototype xfs: simplify buffer pinning xfs: simplify inode to transaction joining xfs: fix the xfs_log_iovec i_addr type xfs: kill the unused xlog_debug variable xfs: remove the unused XFS_LOG_SLEEP and XFS_LOG_NOSLEEP flags xfs: remove the unused XFS_TRANS_NOSLEEP/XFS_TRANS_WAIT flags xfs: remove unused XFS_BMAPI_ flags xfs: remove unused delta tracking code in xfs_bmapi Dave Chinner (1): xfs: fix race in inode cluster freeing failing to stale inodes .../filesystems/xfs-delayed-logging-design.txt | 5 - fs/xfs/Makefile | 4 +- fs/xfs/linux-2.6/xfs_aops.c | 26 +- fs/xfs/linux-2.6/xfs_buf.c | 33 +-- fs/xfs/linux-2.6/xfs_buf.h | 9 +- fs/xfs/linux-2.6/xfs_dmapi_priv.h | 28 -- fs/xfs/linux-2.6/xfs_export.c | 1 - fs/xfs/linux-2.6/xfs_file.c | 99 +----- fs/xfs/linux-2.6/xfs_fs_subr.c | 4 - fs/xfs/linux-2.6/xfs_fs_subr.h | 25 -- fs/xfs/linux-2.6/xfs_ioctl.c | 23 +- fs/xfs/linux-2.6/xfs_ioctl32.c | 4 - fs/xfs/linux-2.6/xfs_iops.c | 8 - fs/xfs/linux-2.6/xfs_linux.h | 1 - fs/xfs/linux-2.6/xfs_quotaops.c | 1 - fs/xfs/linux-2.6/xfs_super.c | 84 +--- fs/xfs/linux-2.6/xfs_super.h | 7 - fs/xfs/linux-2.6/xfs_sync.c | 14 +- fs/xfs/linux-2.6/xfs_trace.c | 4 - fs/xfs/linux-2.6/xfs_trace.h | 2 - fs/xfs/quota/xfs_dquot.c | 114 ++--- fs/xfs/quota/xfs_dquot_item.c | 301 ++++++-------- fs/xfs/quota/xfs_qm.c | 9 +- fs/xfs/quota/xfs_qm_bhv.c | 10 - fs/xfs/quota/xfs_qm_stats.c | 10 - fs/xfs/quota/xfs_qm_syscalls.c | 10 - fs/xfs/quota/xfs_trans_dquot.c | 35 +-- fs/xfs/support/debug.c | 1 - fs/xfs/xfs_alloc.c | 5 - fs/xfs/xfs_alloc_btree.c | 5 - fs/xfs/xfs_attr.c | 91 ++--- fs/xfs/xfs_attr_leaf.c | 5 +- fs/xfs/xfs_bmap.c | 300 ++------------ fs/xfs/xfs_bmap.h | 37 +-- fs/xfs/xfs_bmap_btree.c | 5 - fs/xfs/xfs_btree.c | 5 - fs/xfs/xfs_buf_item.c | 227 +++++------ fs/xfs/xfs_buf_item.h | 2 +- fs/xfs/xfs_da_btree.c | 14 +- fs/xfs/xfs_dfrag.c | 16 +- fs/xfs/xfs_dir2.c | 9 +- fs/xfs/xfs_dir2_block.c | 2 - fs/xfs/xfs_dir2_data.c | 2 - fs/xfs/xfs_dir2_leaf.c | 4 +- fs/xfs/xfs_dir2_node.c | 2 - fs/xfs/xfs_dir2_sf.c | 2 - fs/xfs/xfs_dmapi.h | 170 -------- fs/xfs/xfs_dmops.c | 55 --- fs/xfs/xfs_error.c | 4 - fs/xfs/xfs_extfree_item.c | 278 +++++------- fs/xfs/xfs_filestream.c | 4 - fs/xfs/xfs_fsops.c | 7 +- fs/xfs/xfs_ialloc.c | 4 - fs/xfs/xfs_ialloc_btree.c | 4 - fs/xfs/xfs_iget.c | 30 +- fs/xfs/xfs_inode.c | 175 ++++----- fs/xfs/xfs_inode_item.c | 250 ++++------- fs/xfs/xfs_inode_item.h | 12 +- fs/xfs/xfs_iomap.c | 26 +- fs/xfs/xfs_itable.c | 4 - fs/xfs/xfs_log.c | 7 +- fs/xfs/xfs_log.h | 11 +- fs/xfs/xfs_log_cil.c | 4 +- fs/xfs/xfs_log_recover.c | 42 +-- fs/xfs/xfs_mount.c | 3 - fs/xfs/xfs_mount.h | 67 --- fs/xfs/xfs_rename.c | 60 +--- fs/xfs/xfs_rtalloc.c | 9 +- fs/xfs/xfs_rw.c | 15 - fs/xfs/xfs_trans.c | 211 ++++++---- fs/xfs/xfs_trans.h | 117 +----- fs/xfs/xfs_trans_ail.c | 1 - fs/xfs/xfs_trans_buf.c | 75 +--- fs/xfs/xfs_trans_extfree.c | 23 +- fs/xfs/xfs_trans_inode.c | 74 ++--- fs/xfs/xfs_trans_item.c | 441 -------------------- fs/xfs/xfs_trans_priv.h | 18 +- fs/xfs/xfs_utils.c | 8 +- fs/xfs/xfs_vnodeops.c | 265 ++---------- 79 files changed, 973 insertions(+), 3106 deletions(-) delete mode 100644 fs/xfs/linux-2.6/xfs_dmapi_priv.h delete mode 100644 fs/xfs/linux-2.6/xfs_fs_subr.h delete mode 100644 fs/xfs/xfs_dmapi.h delete mode 100644 fs/xfs/xfs_dmops.c delete mode 100644 fs/xfs/xfs_trans_item.c -- Dave Chinner david@fromorbit.com From BATV+d2182a14c3c419587505+2476+infradead.org+hch@bombadil.srs.infradead.org Fri Jun 4 02:46:30 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.1 required=5.0 tests=BAYES_00,SUBJ_ATTENTION autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o547kSc1209445 for ; Fri, 4 Jun 2010 02:46:30 -0500 X-ASG-Debug-ID: 1275637737-704b03b80000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 49AC1396DE5 for ; Fri, 4 Jun 2010 00:48:58 -0700 (PDT) Received: from bombadil.infradead.org ([18.85.46.34]) by cuda.sgi.com with ESMTP id NZWFX2dau1iIrS0K for ; Fri, 04 Jun 2010 00:48:58 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.69 #1 (Red Hat Linux)) id 1OKRe9-0001Et-1r; Fri, 04 Jun 2010 07:48:53 +0000 Date: Fri, 4 Jun 2010 03:48:53 -0400 From: Christoph Hellwig To: Dave Chinner Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: Re: [PATCH 4/6] writeback: pay attention to wbc->nr_to_write in write_cache_pages Subject: Re: [PATCH 4/6] writeback: pay attention to wbc->nr_to_write in write_cache_pages Message-ID: <20100604074852.GA4448@infradead.org> References: <1275609328-12514-1-git-send-email-david@fromorbit.com> <1275609328-12514-5-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1275609328-12514-5-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.19 (2009-01-05) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[18.85.46.34] X-Barracuda-Start-Time: 1275637738 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Looks good. Can please get this in ASAP, including -stable? > This commit adds a ->writepage tracepoint inside write_cache_pages() (how the > above trace was generated) and does the revert manually leaving the subsequent > bug fixes intact. ext4 is not affected by this as a previous commit in the > series stops ext4 from using the generic function. It doesn't anymore now that you've split it out.. From BATV+d2182a14c3c419587505+2476+infradead.org+hch@bombadil.srs.infradead.org Fri Jun 4 02:47:11 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o547lAwV209487 for ; Fri, 4 Jun 2010 02:47:11 -0500 X-ASG-Debug-ID: 1275637932-6e2601780000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id CDB96130DFE6 for ; Fri, 4 Jun 2010 00:52:12 -0700 (PDT) Received: from bombadil.infradead.org ([18.85.46.34]) by cuda.sgi.com with ESMTP id bp9sH1guBqNRn42U for ; Fri, 04 Jun 2010 00:52:12 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.69 #1 (Red Hat Linux)) id 1OKRes-0001In-Le; Fri, 04 Jun 2010 07:49:38 +0000 Date: Fri, 4 Jun 2010 03:49:38 -0400 From: Christoph Hellwig To: Dave Chinner Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: Re: [PATCH 0/6] writeback: tracing and fixes V3. Subject: Re: [PATCH 0/6] writeback: tracing and fixes V3. Message-ID: <20100604074938.GB4448@infradead.org> References: <1275609328-12514-1-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1275609328-12514-1-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.19 (2009-01-05) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[18.85.46.34] X-Barracuda-Start-Time: 1275637932 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Not sure what the rules for new tracepoints are, but in addition to the fixes I'd really love to see the tracepoints in 2.6.35. From BATV+d2182a14c3c419587505+2476+infradead.org+hch@bombadil.srs.infradead.org Fri Jun 4 02:48:59 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o547mwip209627 for ; Fri, 4 Jun 2010 02:48:59 -0500 X-ASG-Debug-ID: 1275637887-153900370000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 4676814803B0 for ; Fri, 4 Jun 2010 00:51:28 -0700 (PDT) Received: from bombadil.infradead.org ([18.85.46.34]) by cuda.sgi.com with ESMTP id eEH9TSEbKAEcmjNU for ; Fri, 04 Jun 2010 00:51:28 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.69 #1 (Red Hat Linux)) id 1OKRgd-00027H-1r; Fri, 04 Jun 2010 07:51:27 +0000 Date: Fri, 4 Jun 2010 03:51:27 -0400 From: Christoph Hellwig To: Dave Chinner Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: Re: [PATCH 3/6] writeback: Add tracing to write_cache_pages Subject: Re: [PATCH 3/6] writeback: Add tracing to write_cache_pages Message-ID: <20100604075127.GA7317@infradead.org> References: <1275609328-12514-1-git-send-email-david@fromorbit.com> <1275609328-12514-4-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1275609328-12514-4-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.19 (2009-01-05) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[18.85.46.34] X-Barracuda-Start-Time: 1275637888 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jun 04, 2010 at 09:55:25AM +1000, Dave Chinner wrote: > Add a trace event to the ->writepage loop in write_cache_pages to give > visibility into how the ->writepage call is changing variables within the > writeback control structure. Of most interest is how wbc->nr_to_write changes > from call to call, especially with filesystems that write multiple pages > in ->writepage. Looks good, it might be worth to add another tracepoint for ->writepage from reclaim context so that we can start investigating the cases where that happens far too often. Reviewed-by: Christoph Hellwig From BATV+d2182a14c3c419587505+2476+infradead.org+hch@bombadil.srs.infradead.org Fri Jun 4 02:49:57 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o547nvs5209688 for ; Fri, 4 Jun 2010 02:49:57 -0500 X-ASG-Debug-ID: 1275637946-16f7002a0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 61CF81481038 for ; Fri, 4 Jun 2010 00:52:26 -0700 (PDT) Received: from bombadil.infradead.org ([18.85.46.34]) by cuda.sgi.com with ESMTP id SuoY9EQpBCWauGGx for ; Fri, 04 Jun 2010 00:52:26 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.69 #1 (Red Hat Linux)) id 1OKRhX-0002G5-TJ; Fri, 04 Jun 2010 07:52:23 +0000 Date: Fri, 4 Jun 2010 03:52:23 -0400 From: Christoph Hellwig To: Dave Chinner Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: Re: [PATCH 6/6] writeback: limit write_cache_pages integrity scanning to current EOF Subject: Re: [PATCH 6/6] writeback: limit write_cache_pages integrity scanning to current EOF Message-ID: <20100604075223.GB7317@infradead.org> References: <1275609328-12514-1-git-send-email-david@fromorbit.com> <1275609328-12514-7-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1275609328-12514-7-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.19 (2009-01-05) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[18.85.46.34] X-Barracuda-Start-Time: 1275637946 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Even if there still are potential livelocks after this it's a big step in the right direction, so Reviewed-by: Christoph Hellwig From BATV+d2182a14c3c419587505+2476+infradead.org+hch@bombadil.srs.infradead.org Fri Jun 4 02:52:12 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o547qC1l209830 for ; Fri, 4 Jun 2010 02:52:12 -0500 X-ASG-Debug-ID: 1275638234-6e2601b40000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 65DBC130E0DE; Fri, 4 Jun 2010 00:57:14 -0700 (PDT) Received: from bombadil.infradead.org ([18.85.46.34]) by cuda.sgi.com with ESMTP id HDvOkHB5IMuRgfbE; Fri, 04 Jun 2010 00:57:14 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.69 #1 (Red Hat Linux)) id 1OKRjk-0002ge-Lo; Fri, 04 Jun 2010 07:54:40 +0000 Date: Fri, 4 Jun 2010 03:54:40 -0400 From: Christoph Hellwig To: Dave Chinner Cc: aelder@sgi.com, xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [GIT] fixes and cleanups for xfs-dev Subject: Re: [GIT] fixes and cleanups for xfs-dev Message-ID: <20100604075440.GA9325@infradead.org> References: <20100604055837.GB20641@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100604055837.GB20641@dastard> User-Agent: Mutt/1.5.19 (2009-01-05) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[18.85.46.34] X-Barracuda-Start-Time: 1275638234 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jun 04, 2010 at 03:58:37PM +1000, Dave Chinner wrote: > Hi Alex, > > Here are the latest list of reviewed patches for the xfs-dev tree. > The inode cluster freeing fix really needs to go to Linus for .35 > (and a .34-stable update is probably needed). Yes, getting the current queue on oss plus the first fout patches from your pull request into .35 ASAP would be a good thing. From npiggin@suse.de Fri Jun 4 02:53:51 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o547roZV209905 for ; Fri, 4 Jun 2010 02:53:51 -0500 X-ASG-Debug-ID: 1275638331-712601950000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mx1.suse.de (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id D4ECF130E447 for ; Fri, 4 Jun 2010 00:58:52 -0700 (PDT) Received: from mx1.suse.de (cantor.suse.de [195.135.220.2]) by cuda.sgi.com with ESMTP id MRAsm72xeTNg6UZs for ; Fri, 04 Jun 2010 00:58:52 -0700 (PDT) X-ASG-Whitelist: Barracuda Reputation Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.221.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.suse.de (Postfix) with ESMTP id 1EBA48E8CC; Fri, 4 Jun 2010 09:56:17 +0200 (CEST) Received: by laptop.local0.net (Postfix, from userid 1000) id 72C4A29819; Fri, 4 Jun 2010 17:56:14 +1000 (EST) Date: Fri, 4 Jun 2010 17:56:14 +1000 From: Nick Piggin To: Christoph Hellwig Cc: Dave Chinner , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: Re: [PATCH 6/6] writeback: limit write_cache_pages integrity scanning to current EOF Subject: Re: [PATCH 6/6] writeback: limit write_cache_pages integrity scanning to current EOF Message-ID: <20100604075614.GB26335@laptop> References: <1275609328-12514-1-git-send-email-david@fromorbit.com> <1275609328-12514-7-git-send-email-david@fromorbit.com> <20100604075223.GB7317@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100604075223.GB7317@infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: cantor.suse.de[195.135.220.2] X-Barracuda-Start-Time: 1275638332 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jun 04, 2010 at 03:52:23AM -0400, Christoph Hellwig wrote: > Even if there still are potential livelocks after this it's a big > step in the right direction, so > > > Reviewed-by: Christoph Hellwig Agreed. 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autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o54FOguW231190 for ; Fri, 4 Jun 2010 10:24:43 -0500 X-ASG-Debug-ID: 1275665230-420d00aa0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.sandeen.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 6BD9E1E05EB3 for ; Fri, 4 Jun 2010 08:27:10 -0700 (PDT) Received: from mail.sandeen.net (64-131-60-146.usfamily.net [64.131.60.146]) by cuda.sgi.com with ESMTP id njoMZgyJtLfS8wcG for ; Fri, 04 Jun 2010 08:27:10 -0700 (PDT) Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sandeen.net (Postfix) with ESMTP id 804FA46AD993 for ; Fri, 4 Jun 2010 10:27:10 -0500 (CDT) Message-ID: <4C091B4E.5030503@sandeen.net> Date: Fri, 04 Jun 2010 10:27:10 -0500 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.24 (Macintosh/20100228) MIME-Version: 1.0 To: xfs-oss X-ASG-Orig-Subj: [PATCH] xfstests: use stat not lstat when examining devices Subject: [PATCH] xfstests: use stat not lstat when examining devices Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: 64-131-60-146.usfamily.net[64.131.60.146] X-Barracuda-Start-Time: 1275665231 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31615 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean If you try running xfstests on lvm volumes which are symlinks, it'll fail to run several tests because our _require_scratch framework ultimately uses lstat not stat, and does not think the lvm device (which is usually a symlink to a dm-X device) is a block device. Sigh. It seems a little crummy to cut and paste lstat64.c to stat64.c but then adding an "-L" option to lstat64 to -not- stat the link seems all bass-ackwards. We need something like this, but I'm open to suggestions of a better implementation. Even /usr/bin/stat -l may suffice, I don't know why we roll our own lstat64 binary. Signed-off-by: Eric Sandeen --- diff --git a/common.rc b/common.rc index 6bf1e12..57b28c6 100644 --- a/common.rc +++ b/common.rc @@ -584,7 +584,7 @@ _is_block_dev() exit 1 fi - [ -b $1 ] && src/lstat64 $1 | $AWK_PROG '/Device type:/ { print $9 }' + [ -b $1 ] && src/stat64 $1 | $AWK_PROG '/Device type:/ { print $9 }' } # Do a command, log it to $seq.full, optionally test return status diff --git a/src/Makefile b/src/Makefile index 976133d..1144547 100644 --- a/src/Makefile +++ b/src/Makefile @@ -5,7 +5,7 @@ TOPDIR = .. include $(TOPDIR)/include/builddefs -TARGETS = dirstress fill fill2 getpagesize holes lstat64 \ +TARGETS = dirstress fill fill2 getpagesize holes stat64 lstat64 \ nametest permname randholes runas truncfile usemem \ mmapcat append_reader append_writer dirperf metaperf \ devzero feature alloc fault fstest t_access_root \ diff --git a/src/stat64.c b/src/stat64.c new file mode 100644 index 0000000..3b68c66 --- /dev/null +++ b/src/stat64.c @@ -0,0 +1,195 @@ +/* + * Copyright (c) 2000-2002 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 + */ + +#include +#include +#include +#include +#include +#include +#include + +long timebuf; + +void +timesince(long timesec) +{ + long d_since; /* days */ + long h_since; /* hours */ + long m_since; /* minutes */ + long s_since; /* seconds */ + + s_since = timebuf - timesec; + d_since = s_since / 86400l ; + s_since -= d_since * 86400l ; + h_since = s_since / 3600l ; + s_since -= h_since * 3600l ; + m_since = s_since / 60l ; + s_since -= m_since * 60l ; + + printf("(%05ld.%02ld:%02ld:%02ld)\n", + d_since, h_since, m_since, s_since); +} + +void +usage(void) +{ + fprintf(stderr, "Usage: lstat64 [-t] filename ...\n"); + exit(1); +} + +int +main(int argc, char **argv) +{ + struct stat64 sbuf; + int i, c; + int terse_flag = 0; + + while ((c = getopt(argc, argv, "t")) != EOF) { + switch (c) { + case 't': + terse_flag = 1; + break; + + case '?': + usage(); + } + } + if (optind == argc) { + usage(); + } + + time(&timebuf); + + for (i = optind; i < argc; i++) { + char mode[] = "----------"; + + if( lstat64(argv[i], &sbuf) < 0) { + perror(argv[i]); + continue; + } + + if (terse_flag) { + printf("%s %llu ", argv[i], (unsigned long long)sbuf.st_size); + } + else { + printf(" File: \"%s\"\n", argv[i]); + printf(" Size: %-10llu", (unsigned long long)sbuf.st_size); + } + + if (sbuf.st_mode & (S_IEXEC>>6)) + mode[9] = 'x'; + if (sbuf.st_mode & (S_IWRITE>>6)) + mode[8] = 'w'; + if (sbuf.st_mode & (S_IREAD>>6)) + mode[7] = 'r'; + if (sbuf.st_mode & (S_IEXEC>>3)) + mode[6] = 'x'; + if (sbuf.st_mode & (S_IWRITE>>3)) + mode[5] = 'w'; + if (sbuf.st_mode & (S_IREAD>>3)) + mode[4] = 'r'; + if (sbuf.st_mode & S_IEXEC) + mode[3] = 'x'; + if (sbuf.st_mode & S_IWRITE) + mode[2] = 'w'; + if (sbuf.st_mode & S_IREAD) + mode[1] = 'r'; + if (sbuf.st_mode & S_ISVTX) + mode[9] = 't'; + if (sbuf.st_mode & S_ISGID) + mode[6] = 's'; + if (sbuf.st_mode & S_ISUID) + mode[3] = 's'; + + if (!terse_flag) + printf(" Filetype: "); + switch (sbuf.st_mode & S_IFMT) { + case S_IFSOCK: + if (!terse_flag) + puts("Socket"); + mode[0] = 's'; + break; + case S_IFDIR: + if (!terse_flag) + puts("Directory"); + mode[0] = 'd'; + break; + case S_IFCHR: + if (!terse_flag) + puts("Character Device"); + mode[0] = 'c'; + break; + case S_IFBLK: + if (!terse_flag) + puts("Block Device"); + mode[0] = 'b'; + break; + case S_IFREG: + if (!terse_flag) + puts("Regular File"); + mode[0] = '-'; + break; + case S_IFLNK: + if (!terse_flag) + puts("Symbolic Link"); + mode[0] = 'l'; + break; + case S_IFIFO: + if (!terse_flag) + puts("Fifo File"); + mode[0] = 'f'; + break; + default: + if (!terse_flag) + puts("Unknown"); + mode[0] = '?'; + } + + if (terse_flag) { + printf("%s %d,%d\n", mode, (int)sbuf.st_uid, (int)sbuf.st_gid); + continue; + } + + printf(" Mode: (%04o/%s)", (unsigned int)(sbuf.st_mode & 07777), mode); + printf(" Uid: (%d)", (int)sbuf.st_uid); + printf(" Gid: (%d)\n", (int)sbuf.st_gid); + printf("Device: %2d,%-2d", major(sbuf.st_dev), + minor(sbuf.st_dev)); + printf(" Inode: %-9llu", (unsigned long long)sbuf.st_ino); + printf(" Links: %-5ld", (long)sbuf.st_nlink); + + if ( ((sbuf.st_mode & S_IFMT) == S_IFCHR) + || ((sbuf.st_mode & S_IFMT) == S_IFBLK) ) + printf(" Device type: %2d,%-2d\n", + major(sbuf.st_rdev), minor(sbuf.st_rdev)); + else + printf("\n"); + + printf("Access: %.24s",ctime(&sbuf.st_atime)); + timesince(sbuf.st_atime); + printf("Modify: %.24s",ctime(&sbuf.st_mtime)); + timesince(sbuf.st_mtime); + printf("Change: %.24s",ctime(&sbuf.st_ctime)); + timesince(sbuf.st_ctime); + + if (i+1 < argc) + printf("\n"); + } + exit(0); +} From sandeen@sandeen.net Fri Jun 4 12:34:30 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,J_CHICKENPOX_43, J_CHICKENPOX_64,T_FRT_LOLITA1 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o54HYUtr236403 for ; Fri, 4 Jun 2010 12:34:30 -0500 X-ASG-Debug-ID: 1275673018-3e9b00930000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.sandeen.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 48A8D14885EF for ; Fri, 4 Jun 2010 10:36:58 -0700 (PDT) Received: from mail.sandeen.net (64-131-60-146.usfamily.net [64.131.60.146]) by cuda.sgi.com with ESMTP id aVngRELtBKJUUsQC for ; Fri, 04 Jun 2010 10:36:58 -0700 (PDT) Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sandeen.net (Postfix) with ESMTP id D58F348BC888 for ; Fri, 4 Jun 2010 12:36:57 -0500 (CDT) Message-ID: <4C0939B9.9000109@sandeen.net> Date: Fri, 04 Jun 2010 12:36:57 -0500 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.24 (Macintosh/20100228) MIME-Version: 1.0 To: xfs-oss X-ASG-Orig-Subj: [PATCH V2] xfstests: use stat not lstat when examining devices Subject: [PATCH V2] xfstests: use stat not lstat when examining devices References: <4C091B4E.5030503@sandeen.net> In-Reply-To: <4C091B4E.5030503@sandeen.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: 64-131-60-146.usfamily.net[64.131.60.146] X-Barracuda-Start-Time: 1275673019 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31622 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean If you try running xfstests on lvm volumes which are symlinks, it'll fail to run several tests because our _require_scratch framework ultimately uses lstat not stat, and does not think the lvm device (which is usually a symlink to a dm-X device) is a block device. Sigh. Adding a -l option to lstat64 in order to call stat not lstat, and stat the target of the link, should be a simple fix. Signed-off-by: Eric Sandeen --- diff --git a/common.rc b/common.rc index 6bf1e12..3539a43 100644 --- a/common.rc +++ b/common.rc @@ -584,7 +584,7 @@ _is_block_dev() exit 1 fi - [ -b $1 ] && src/lstat64 $1 | $AWK_PROG '/Device type:/ { print $9 }' + [ -b $1 ] && src/lstat64 -l $1 | $AWK_PROG '/Device type:/ { print $9 }' } # Do a command, log it to $seq.full, optionally test return status diff --git a/src/lstat64.c b/src/lstat64.c index 3b68c66..c7c7106 100644 --- a/src/lstat64.c +++ b/src/lstat64.c @@ -49,7 +49,7 @@ timesince(long timesec) void usage(void) { - fprintf(stderr, "Usage: lstat64 [-t] filename ...\n"); + fprintf(stderr, "Usage: lstat64 [-tl] filename ...\n"); exit(1); } @@ -59,13 +59,18 @@ main(int argc, char **argv) struct stat64 sbuf; int i, c; int terse_flag = 0; + int follow_flag = 0; - while ((c = getopt(argc, argv, "t")) != EOF) { + while ((c = getopt(argc, argv, "tl")) != EOF) { switch (c) { case 't': terse_flag = 1; break; + case 'l': + follow_flag = 1; + break; + case '?': usage(); } @@ -79,7 +84,10 @@ main(int argc, char **argv) for (i = optind; i < argc; i++) { char mode[] = "----------"; - if( lstat64(argv[i], &sbuf) < 0) { + if (!follow_flag && lstat64(argv[i], &sbuf) < 0) { + perror(argv[i]); + continue; + } else if (follow_flag && stat64(argv[i], &sbuf) < 0) { perror(argv[i]); continue; } From sandeen@sandeen.net Fri Jun 4 12:57:35 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,T_FRT_LOLITA1 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o54HvYxb237525 for ; Fri, 4 Jun 2010 12:57:35 -0500 X-ASG-Debug-ID: 1275674402-27e702260000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.sandeen.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 50B2A398CD8 for ; Fri, 4 Jun 2010 11:00:02 -0700 (PDT) Received: from mail.sandeen.net (64-131-60-146.usfamily.net [64.131.60.146]) by cuda.sgi.com with ESMTP id MOeCW2VfnX1Ps14q for ; Fri, 04 Jun 2010 11:00:02 -0700 (PDT) Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sandeen.net (Postfix) with ESMTP id 648204817DE0 for ; Fri, 4 Jun 2010 13:00:02 -0500 (CDT) Message-ID: <4C093F22.1010006@sandeen.net> Date: Fri, 04 Jun 2010 13:00:02 -0500 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.24 (Macintosh/20100228) MIME-Version: 1.0 To: xfs-oss X-ASG-Orig-Subj: [PATCH V3] xfstests: use stat not lstat when examining devices Subject: [PATCH V3] xfstests: use stat not lstat when examining devices References: <4C091B4E.5030503@sandeen.net> <4C0939B9.9000109@sandeen.net> In-Reply-To: <4C0939B9.9000109@sandeen.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: 64-131-60-146.usfamily.net[64.131.60.146] X-Barracuda-Start-Time: 1275674403 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31624 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean If you try running xfstests on lvm volumes which are symlinks, it'll fail to run several tests because our _require_scratch framework ultimately uses lstat not stat, and does not think the lvm device (which is usually a symlink to a dm-X device) is a block device. Sigh. Just calling stat(1) with -L to follow the link should suffice. Signed-off-by: Eric Sandeen --- diff --git a/common.rc b/common.rc index 6bf1e12..db18884 100644 --- a/common.rc +++ b/common.rc @@ -584,7 +584,7 @@ _is_block_dev() exit 1 fi - [ -b $1 ] && src/lstat64 $1 | $AWK_PROG '/Device type:/ { print $9 }' + [ -b $1 ] && stat -L $1 | $AWK_PROG '/Device type:/ { print $9 }' } # Do a command, log it to $seq.full, optionally test return status From aelder@sgi.com Fri Jun 4 13:25:27 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,T_FRT_LOLITA1 autolearn=ham version=3.4.0-r929098 Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o54IPQaF238694 for ; Fri, 4 Jun 2010 13:25:26 -0500 Received: from cf--amer001e--3.americas.sgi.com (cf--amer001e--3.americas.sgi.com [137.38.100.5]) by relay3.corp.sgi.com (Postfix) with ESMTP id 38BFBAC00C; Fri, 4 Jun 2010 11:27:52 -0700 (PDT) Received: from [128.162.232.162] ([128.162.232.162]) by cf--amer001e--3.americas.sgi.com with Microsoft SMTPSVC(6.0.3790.3959); Fri, 4 Jun 2010 13:26:53 -0500 Subject: Re: [PATCH V3] xfstests: use stat not lstat when examining devices From: Alex Elder Reply-To: aelder@sgi.com To: Eric Sandeen Cc: xfs-oss In-Reply-To: <4C093F22.1010006@sandeen.net> References: <4C091B4E.5030503@sandeen.net> <4C0939B9.9000109@sandeen.net> <4C093F22.1010006@sandeen.net> Content-Type: text/plain; charset="UTF-8" Date: Fri, 04 Jun 2010 13:26:50 -0500 Message-ID: <1275676010.2317.53.camel@doink> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 04 Jun 2010 18:26:53.0353 (UTC) FILETIME=[817CF190:01CB0413] X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, 2010-06-04 at 13:00 -0500, Eric Sandeen wrote: > If you try running xfstests on lvm volumes which are symlinks, > it'll fail to run several tests because our _require_scratch > framework ultimately uses lstat not stat, and does not think > the lvm device (which is usually a symlink to a dm-X device) > is a block device. Sigh. > > Just calling stat(1) with -L to follow the link should > suffice. I wonder whether we'll find stat(1) output ever varies enough to affect this. But otherwise this looks good to me. Reviewed-by: Alex Elder > Signed-off-by: Eric Sandeen > --- > > diff --git a/common.rc b/common.rc > index 6bf1e12..db18884 100644 > --- a/common.rc > +++ b/common.rc > @@ -584,7 +584,7 @@ _is_block_dev() > exit 1 > fi > > - [ -b $1 ] && src/lstat64 $1 | $AWK_PROG '/Device type:/ { print $9 }' > + [ -b $1 ] && stat -L $1 | $AWK_PROG '/Device type:/ { print $9 }' > } > > # Do a command, log it to $seq.full, optionally test return status > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From aelder@oss.sgi.com Fri Jun 4 15:30:43 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from oss.sgi.com (localhost [127.0.0.1]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o54KUhcr244849 for ; Fri, 4 Jun 2010 15:30:43 -0500 Received: (from aelder@localhost) by oss.sgi.com (8.14.3/8.14.3/Submit) id o54KUhrA244811; Fri, 4 Jun 2010 15:30:43 -0500 Date: Fri, 4 Jun 2010 15:30:43 -0500 Message-Id: <201006042030.o54KUhrA244811@oss.sgi.com> From: xfs@oss.sgi.com To: xfs@oss.sgi.com Subject: [XFS updates] XFS development tree branch, master, updated. v2.6.34-81-gf936972 X-Git-Refname: refs/heads/master X-Git-Reftype: branch X-Git-Oldrev: fb3b504adeee942e55393396fea8fdf406acf037 X-Git-Newrev: f9369729496a0f4c607a4cc1ea4dfeddbbfc505a This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "XFS development tree". The branch, master has been updated f936972 xfs: improve xfs_isilocked 070ecdc xfs: skip writeback from reclaim context 5b257b4 xfs: fix race in inode cluster freeing failing to stale inodes from fb3b504adeee942e55393396fea8fdf406acf037 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit f9369729496a0f4c607a4cc1ea4dfeddbbfc505a Author: Christoph Hellwig Date: Thu Jun 3 16:22:29 2010 +1000 xfs: improve xfs_isilocked Use rwsem_is_locked to make the assertations for shared locks work. Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner commit 070ecdca54dde9577d2697088e74e45568f48efb Author: Christoph Hellwig Date: Thu Jun 3 16:22:29 2010 +1000 xfs: skip writeback from reclaim context Allowing writeback from reclaim context causes massive problems with stack overflows as we can call into the writeback code which tends to be a heavy stack user both in the generic code and XFS from random contexts that perform memory allocations. Follow the example of btrfs (and in slightly different form ext4) and refuse to write out data from reclaim context. This issue should really be handled by the VM so that we can tune better for this case, but until we get it sorted out there we have to hack around this in each filesystem with a complex writeback path. Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner commit 5b257b4a1f9239624c6b5e669763de04e482c2b3 Author: Dave Chinner Date: Thu Jun 3 16:22:29 2010 +1000 xfs: fix race in inode cluster freeing failing to stale inodes When an inode cluster is freed, it needs to mark all inodes in memory as XFS_ISTALE before marking the buffer as stale. This is eeded because the inodes have a different life cycle to the buffer, and once the buffer is torn down during transaction completion, we must ensure none of the inodes get written back (which is what XFS_ISTALE does). Unfortunately, xfs_ifree_cluster() has some bugs that lead to inodes not being marked with XFS_ISTALE. This shows up when xfs_iflush() is called on these inodes either during inode reclaim or tail pushing on the AIL. The buffer is read back, but no longer contains inodes and so triggers assert failures and shutdowns. This was reproducable with at run.dbench10 invocation from xfstests. There are two main causes of xfs_ifree_cluster() failing. The first is simple - it checks in-memory inodes it finds in the per-ag icache to see if they are clean without holding the flush lock. if they are clean it skips them completely. However, If an inode is flushed delwri, it will appear clean, but is not guaranteed to be written back until the flush lock has been dropped. Hence we may have raced on the clean check and the inode may actually be dirty. Hence always mark inodes found in memory stale before we check properly if they are clean. The second is more complex, and makes the first problem easier to hit. Basically the in-memory inode scan is done with full knowledge it can be racing with inode flushing and AIl tail pushing, which means that inodes that it can't get the flush lock on might not be attached to the buffer after then in-memory inode scan due to IO completion occurring. This is actually documented in the code as "needs better interlocking". i.e. this is a zero-day bug. Effectively, the in-memory scan must be done while the inode buffer is locked and Io cannot be issued on it while we do the in-memory inode scan. This ensures that inodes we couldn't get the flush lock on are guaranteed to be attached to the cluster buffer, so we can then catch all in-memory inodes and mark them stale. Now that the inode cluster buffer is locked before the in-memory scan is done, there is no need for the two-phase update of the in-memory inodes, so simplify the code into two loops and remove the allocation of the temporary buffer used to hold locked inodes across the phases. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig ----------------------------------------------------------------------- Summary of changes: fs/xfs/linux-2.6/xfs_aops.c | 15 +++++ fs/xfs/xfs_iget.c | 26 +++----- fs/xfs/xfs_inode.c | 142 +++++++++++++++++++------------------------ 3 files changed, 87 insertions(+), 96 deletions(-) hooks/post-receive -- XFS development tree From aelder@oss.sgi.com Sat Jun 5 06:10:43 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from oss.sgi.com (localhost [127.0.0.1]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o55BAhdg022580 for ; Sat, 5 Jun 2010 06:10:43 -0500 Received: (from aelder@localhost) by oss.sgi.com (8.14.3/8.14.3/Submit) id o55BAdUa022475; Sat, 5 Jun 2010 06:10:39 -0500 Date: Sat, 5 Jun 2010 06:10:39 -0500 Message-Id: <201006051110.o55BAdUa022475@oss.sgi.com> From: xfs@oss.sgi.com To: xfs@oss.sgi.com Subject: [XFS updates] XFS development tree branch, for-linus, updated. v2.6.34-8881-g1bf7dbf X-Git-Refname: refs/heads/for-linus X-Git-Reftype: branch X-Git-Oldrev: 88e88374ee4958786397a57f684de6f1fc5e0242 X-Git-Newrev: 1bf7dbfde8fe7ddaa8e2e1b4e0fc41a9fc6aa7a5 This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "XFS development tree". The branch, for-linus has been updated 1bf7dbf Merge branch 'master' into for-linus f936972 xfs: improve xfs_isilocked 070ecdc xfs: skip writeback from reclaim context 5b257b4 xfs: fix race in inode cluster freeing failing to stale inodes fb3b504 xfs: fix access to upper inodes without inode64 9b98b6f xfs: fix might_sleep() warning when initialising per-ag tree 38e712a fs/xfs/quota: Add missing mutex_unlock 3bd0946 xfs: remove duplicated #include f8adb4d xfs: convert more trace events to DEFINE_EVENT 292ec4c xfs: xfs_trace.c: remove duplicated #include 07f1a4f xfs: Check new inode size is OK before preallocating fdc07f4 xfs: clean up xlog_align 025101d xfs: cleanup log reservation calculactions 32891b2 xfs: be more explicit if RT mount fails due to config 657a4cf xfs: replace E2BIG with EFBIG where appropriate 7ea8085 drop unused dentry argument to ->fsync from 88e88374ee4958786397a57f684de6f1fc5e0242 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 1bf7dbfde8fe7ddaa8e2e1b4e0fc41a9fc6aa7a5 Merge: ad8456361fa19068cf49b50a4f98e41b73c08e76 f9369729496a0f4c607a4cc1ea4dfeddbbfc505a Author: Alex Elder Date: Fri Jun 4 13:22:30 2010 -0500 Merge branch 'master' into for-linus commit 7ea8085910ef3dd4f3cad6845aaa2b580d39b115 Author: Christoph Hellwig Date: Wed May 26 17:53:25 2010 +0200 drop unused dentry argument to ->fsync Signed-off-by: Christoph Hellwig Signed-off-by: Al Viro ----------------------------------------------------------------------- Summary of changes: fs/xfs/linux-2.6/xfs_aops.c | 15 ++ fs/xfs/linux-2.6/xfs_file.c | 10 +- fs/xfs/linux-2.6/xfs_iops.c | 16 ++- fs/xfs/linux-2.6/xfs_quotaops.c | 1 - fs/xfs/linux-2.6/xfs_sync.c | 9 - fs/xfs/linux-2.6/xfs_trace.c | 1 - fs/xfs/linux-2.6/xfs_trace.h | 356 ++++++++++++++++--------------- fs/xfs/quota/xfs_qm.c | 4 +- fs/xfs/xfs_ag.h | 1 - fs/xfs/xfs_iget.c | 29 +-- fs/xfs/xfs_inode.c | 144 ++++++------- fs/xfs/xfs_log_recover.c | 11 +- fs/xfs/xfs_mount.c | 68 +++---- fs/xfs/xfs_rtalloc.c | 4 +- fs/xfs/xfs_rtalloc.h | 11 +- fs/xfs/xfs_trans.c | 446 +++++++++++++++++++++++++++++++++++---- fs/xfs/xfs_trans.h | 411 ------------------------------------ fs/xfs/xfs_vnodeops.c | 2 +- 18 files changed, 741 insertions(+), 798 deletions(-) hooks/post-receive -- XFS development tree From aelder@sgi.com Sat Jun 5 06:14:45 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o55BEiIf022833 for ; Sat, 5 Jun 2010 06:14:44 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay1.corp.sgi.com (Postfix) with ESMTP id 992F38F8054; Sat, 5 Jun 2010 04:17:11 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o55BHAwl006255; Sat, 5 Jun 2010 06:17:10 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o55BH8KB006254; Sat, 5 Jun 2010 06:17:08 -0500 From: Alex Elder Message-Id: <201006051117.o55BH8KB006254@stout.americas.sgi.com> Date: Sat, 05 Jun 2010 06:17:07 -0500 To: torvalds@linux-foundation.org Subject: [GIT PULL] XFS update for 2.6.35-rc2 Cc: linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean The following changes since commit 7f0d384cafabfbb56663ee6944c18fc0450fc5d6: Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 (2010-06-04 21:12:39 -0700) are available in the git repository at: git://oss.sgi.com/xfs/xfs for-linus Alex Elder (1): Merge branch 'master' into for-linus Christoph Hellwig (6): xfs: cleanup log reservation calculactions xfs: clean up xlog_align xfs: fix access to upper inodes without inode64 xfs: remove done roadmap item from xfs-delayed-logging-design.txt xfs: skip writeback from reclaim context xfs: improve xfs_isilocked Dave Chinner (3): xfs: Check new inode size is OK before preallocating xfs: fix might_sleep() warning when initialising per-ag tree xfs: fix race in inode cluster freeing failing to stale inodes Eric Sandeen (2): xfs: replace E2BIG with EFBIG where appropriate xfs: be more explicit if RT mount fails due to config Huang Weiyi (2): xfs: xfs_trace.c: remove duplicated #include xfs: remove duplicated #include Julia Lawall (1): fs/xfs/quota: Add missing mutex_unlock Li Zefan (1): xfs: convert more trace events to DEFINE_EVENT .../filesystems/xfs-delayed-logging-design.txt | 5 - fs/xfs/linux-2.6/xfs_aops.c | 15 + fs/xfs/linux-2.6/xfs_iops.c | 16 +- fs/xfs/linux-2.6/xfs_quotaops.c | 1 - fs/xfs/linux-2.6/xfs_sync.c | 9 - fs/xfs/linux-2.6/xfs_trace.c | 1 - fs/xfs/linux-2.6/xfs_trace.h | 356 ++++++++-------- fs/xfs/quota/xfs_qm.c | 4 +- fs/xfs/xfs_ag.h | 1 - fs/xfs/xfs_iget.c | 29 +- fs/xfs/xfs_inode.c | 144 +++---- fs/xfs/xfs_log_recover.c | 11 +- fs/xfs/xfs_mount.c | 68 ++-- fs/xfs/xfs_rtalloc.c | 4 +- fs/xfs/xfs_rtalloc.h | 11 +- fs/xfs/xfs_trans.c | 446 ++++++++++++++++++-- fs/xfs/xfs_trans.h | 411 ------------------ fs/xfs/xfs_vnodeops.c | 2 +- 18 files changed, 736 insertions(+), 798 deletions(-) From MAILER-DAEMON@oss.sgi.com Mon Jun 7 00:57:38 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_50 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o575vccn124328 for ; 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From SRS0+R53I+8+fromorbit.com=david@internode.on.net Mon Jun 7 19:08:53 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5808rBM178560 for ; Mon, 7 Jun 2010 19:08:53 -0500 X-ASG-Debug-ID: 1275955883-5c4d018a0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 095D13A0417 for ; Mon, 7 Jun 2010 17:11:23 -0700 (PDT) Received: from mail.internode.on.net (bld-mail16.adl2.internode.on.net [150.101.137.101]) by cuda.sgi.com with ESMTP id WcSzrfBEs5ZovLtV for ; Mon, 07 Jun 2010 17:11:23 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27072309-1927428 for multiple; Tue, 08 Jun 2010 09:41:17 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OLmPT-0001uI-NM; Tue, 08 Jun 2010 10:11:15 +1000 Date: Tue, 8 Jun 2010 10:11:15 +1000 From: Dave Chinner To: Christoph Hellwig Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: Re: [PATCH 0/6] writeback: tracing and fixes V3. Subject: Re: [PATCH 0/6] writeback: tracing and fixes V3. Message-ID: <20100608001115.GB6965@dastard> References: <1275609328-12514-1-git-send-email-david@fromorbit.com> <20100604074938.GB4448@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100604074938.GB4448@infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail16.adl2.internode.on.net[150.101.137.101] X-Barracuda-Start-Time: 1275955885 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31918 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jun 04, 2010 at 03:49:38AM -0400, Christoph Hellwig wrote: > > Not sure what the rules for new tracepoints are, but in addition to the > fixes I'd really love to see the tracepoints in 2.6.35. Personally I think they are just as important (or even more important) than the bug fixes because we seem to break this code regularly because nobody can clearly see what the internals are doing to verify their change is working correctly. Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0+zsqh+8+fromorbit.com=dave@internode.on.net Mon Jun 7 19:36:29 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o580aSX2179682 for ; Mon, 7 Jun 2010 19:36:29 -0500 X-ASG-Debug-ID: 1275957711-6e5202c20000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id EE8AA158C5AF for ; Mon, 7 Jun 2010 17:41:51 -0700 (PDT) Received: from mail.internode.on.net (bld-mail15.adl6.internode.on.net [150.101.137.100]) by cuda.sgi.com with ESMTP id PpTRwz4GYXl0fPZB for ; Mon, 07 Jun 2010 17:41:51 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 15506848-1927428 for multiple; Tue, 08 Jun 2010 10:08:21 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OLmpf-0001wL-MV; Tue, 08 Jun 2010 10:38:19 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OLmpb-0006Ar-UU; Tue, 08 Jun 2010 10:38:15 +1000 From: Dave Chinner To: torvalds@linux-foundation.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: [PATCH 3/6] writeback: Add tracing to write_cache_pages Subject: [PATCH 3/6] writeback: Add tracing to write_cache_pages Date: Tue, 8 Jun 2010 10:38:04 +1000 Message-Id: <1275957487-23633-4-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1275957487-23633-1-git-send-email-david@fromorbit.com> References: <1275957487-23633-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail15.adl6.internode.on.net[150.101.137.100] X-Barracuda-Start-Time: 1275957712 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31921 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner Add a trace event to the ->writepage loop in write_cache_pages to give visibility into how the ->writepage call is changing variables within the writeback control structure. Of most interest is how wbc->nr_to_write changes from call to call, especially with filesystems that write multiple pages in ->writepage. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig --- include/trace/events/writeback.h | 1 + mm/page-writeback.c | 1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h index 7867c16..6797c46 100644 --- a/include/trace/events/writeback.h +++ b/include/trace/events/writeback.h @@ -244,6 +244,7 @@ DEFINE_WBC_EVENT(wbc_writeback_wait); DEFINE_WBC_EVENT(wbc_balance_dirty_start); DEFINE_WBC_EVENT(wbc_balance_dirty_written); DEFINE_WBC_EVENT(wbc_balance_dirty_wait); +DEFINE_WBC_EVENT(wbc_writepage); #endif /* _TRACE_WRITEBACK_H */ diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 345a730..7ac39c5 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -921,6 +921,7 @@ continue_unlock: if (!clear_page_dirty_for_io(page)) goto continue_unlock; + trace_wbc_writepage(wbc); ret = (*writepage)(page, wbc, data); if (unlikely(ret)) { if (ret == AOP_WRITEPAGE_ACTIVATE) { -- 1.7.1 From SRS0+7p63+8+fromorbit.com=dave@internode.on.net Mon Jun 7 19:36:27 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_21 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o580aRGG179674 for ; Mon, 7 Jun 2010 19:36:27 -0500 X-ASG-Debug-ID: 1275957537-5c4902000000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 265763A05EF for ; Mon, 7 Jun 2010 17:38:58 -0700 (PDT) Received: from mail.internode.on.net (bld-mail17.adl2.internode.on.net [150.101.137.102]) by cuda.sgi.com with ESMTP id 2eShLUAb0g8XWOHE for ; Mon, 07 Jun 2010 17:38:58 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26943136-1927428 for multiple; Tue, 08 Jun 2010 10:08:21 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OLmpf-0001wH-H5; Tue, 08 Jun 2010 10:38:19 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OLmpb-0006Al-Of; Tue, 08 Jun 2010 10:38:15 +1000 From: Dave Chinner To: torvalds@linux-foundation.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: [PATCH 0/6] writeback: tracing and fixes V4 Subject: [PATCH 0/6] writeback: tracing and fixes V4 Date: Tue, 8 Jun 2010 10:38:01 +1000 Message-Id: <1275957487-23633-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 X-Barracuda-Connect: bld-mail17.adl2.internode.on.net[150.101.137.102] X-Barracuda-Start-Time: 1275957539 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31920 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hi Linus, Can you please consider this patch series for 2.6.35? If you don't want the tracing at this stage of the release process, I can redo the series with just the bug fixes. However, given the regularity with which we break the writeback code in subtle ways, the tracing is probably just as important as the bug fixes. --- This series contains the initial writeback tracing patches from Jens, as well as the extensions I added to provide visibility into writeback control structures as the are used by the writeback code. The visibility given is sufficient to understand what is happening in the writeback path - what path is writing data, what path is blocking on congestion, etc, and to determine the differences in behaviour for different sync modes and calling contexts. This tracing really needs to be integrated into mainline so that anyone can improve the tracing as they use it to track down problems in our convoluted writeback paths. The remaining patches are fixes to problems that the new tracing highlighted. Version 4: - converted strncpy to strlcpy - remove stale information from commit message for nr_to_write fixup. Version 3: - added comment to tracepoint creation to explain the unusual placement of the tracepoint header file include. - separated out ->writepage tracepoint addition into it's own patch. - dropped ext4 write_cache_pages separation as it is now in mainline. - removed ext4 tracing references to wbc->no_nrwrite_index_update as they weren't removed in mainline. - fixed commit message for write_cache_pages patch - added more information to commit message for sync hold-off fixup. Version 2: - included ext4 write_cache_pages separation patch from Ted Ts'o. - moved CREATE_TRACE_POINTS into fs-writeback.c as suggested by Christoph Hellwig. - moved include of trace/events/writeback.h until after structure definitions in fs-writeback.c - manually revert changes made to write_cache_pages() in 17bc6c30cf6bfffd816bdc53682dd46fc34a2cf4 that caused the regression. This restores the convention that if the fs writes back more than a single page, it subtracts (nr_written - 1) from wbc->nr_to_write, as suggested by Andrew Morton. - added patch to prevent sync from looping in write_cache_pages chasing a moving tail when an appending write workload is running concurrently with sync. --- fs/fs-writeback.c | 50 ++++++-- fs/xfs/linux-2.6/xfs_aops.c | 8 -- include/linux/writeback.h | 9 -- include/trace/events/ext4.h | 5 +- include/trace/events/writeback.h | 252 ++++++++++++++++++++++++++++++++++++++ mm/backing-dev.c | 3 + mm/page-writeback.c | 35 ++++-- 7 files changed, 321 insertions(+), 41 deletions(-) From SRS0+zsqh+8+fromorbit.com=dave@internode.on.net Mon Jun 7 19:36:28 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_43 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o580aRhn179676 for ; Mon, 7 Jun 2010 19:36:28 -0500 X-ASG-Debug-ID: 1275957709-386c00bf0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 73D1F158C5AF for ; Mon, 7 Jun 2010 17:41:50 -0700 (PDT) Received: from mail.internode.on.net (bld-mail18.adl2.internode.on.net [150.101.137.103]) by cuda.sgi.com with ESMTP id r8bCl3WB0PLAoCAg for ; Mon, 07 Jun 2010 17:41:50 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26984204-1927428 for multiple; Tue, 08 Jun 2010 10:08:21 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OLmpf-0001wK-MA; Tue, 08 Jun 2010 10:38:19 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OLmpb-0006Ap-Sb; Tue, 08 Jun 2010 10:38:15 +1000 From: Dave Chinner To: torvalds@linux-foundation.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: [PATCH 2/6] writeback: Add tracing to balance_dirty_pages Subject: [PATCH 2/6] writeback: Add tracing to balance_dirty_pages Date: Tue, 8 Jun 2010 10:38:03 +1000 Message-Id: <1275957487-23633-3-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1275957487-23633-1-git-send-email-david@fromorbit.com> References: <1275957487-23633-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail18.adl2.internode.on.net[150.101.137.103] X-Barracuda-Start-Time: 1275957711 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31921 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner Tracing high level background writeback events is good, but it doesn't give the entire picture. Add IO dispatched by foreground throttling to the writeback events. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig --- fs/fs-writeback.c | 5 ++ include/trace/events/writeback.h | 80 ++++++++++++++++++++++++++++++++++++++ mm/page-writeback.c | 4 ++ 3 files changed, 89 insertions(+), 0 deletions(-) diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 0949dfd..6f777d6 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -807,7 +807,11 @@ static long wb_writeback(struct bdi_writeback *wb, wbc.more_io = 0; wbc.nr_to_write = MAX_WRITEBACK_PAGES; wbc.pages_skipped = 0; + + trace_wbc_writeback_start(&wbc); writeback_inodes_wb(wb, &wbc); + trace_wbc_writeback_written(&wbc); + args->nr_pages -= MAX_WRITEBACK_PAGES - wbc.nr_to_write; wrote += MAX_WRITEBACK_PAGES - wbc.nr_to_write; @@ -835,6 +839,7 @@ static long wb_writeback(struct bdi_writeback *wb, if (!list_empty(&wb->b_more_io)) { inode = list_entry(wb->b_more_io.prev, struct inode, i_list); + trace_wbc_writeback_wait(&wbc); inode_wait_for_writeback(inode); } spin_unlock(&inode_lock); diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h index 6f510fa..7867c16 100644 --- a/include/trace/events/writeback.h +++ b/include/trace/events/writeback.h @@ -7,6 +7,9 @@ #include #include +struct wb_writeback_args; +struct bdi_work; + TRACE_EVENT(writeback_queue, TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_args *args), @@ -165,6 +168,83 @@ TRACE_EVENT(writeback_bdi_register, TP_printk("%s: %s", __entry->name, __entry->start ? "registered" : "unregistered") ); + +/* pass flags explicitly */ +DECLARE_EVENT_CLASS(wbc_class, + TP_PROTO(struct writeback_control *wbc), + TP_ARGS(wbc), + TP_STRUCT__entry( + __field(unsigned int, wbc) + __array(char, name, 16) + __field(long, nr_to_write) + __field(long, pages_skipped) + __field(int, sb) + __field(int, sync_mode) + __field(int, nonblocking) + __field(int, encountered_congestion) + __field(int, for_kupdate) + __field(int, for_background) + __field(int, for_reclaim) + __field(int, range_cyclic) + __field(int, more_io) + __field(unsigned long, older_than_this) + __field(long, range_start) + __field(long, range_end) + ), + + TP_fast_assign( + char *__name = "(none)"; + + __entry->wbc = (unsigned long)wbc & 0xffff; + if (wbc->bdi) + strncpy(__entry->name, dev_name(wbc->bdi->dev), 16); + else + strncpy(__entry->name, __name, 16); + __entry->nr_to_write = wbc->nr_to_write; + __entry->pages_skipped = wbc->pages_skipped; + __entry->sb = !!wbc->sb; + __entry->sync_mode = wbc->sync_mode; + __entry->for_kupdate = wbc->for_kupdate; + __entry->for_background = wbc->for_background; + __entry->for_reclaim = wbc->for_reclaim; + __entry->range_cyclic = wbc->range_cyclic; + __entry->more_io = wbc->more_io; + __entry->older_than_this = wbc->older_than_this ? + *wbc->older_than_this : 0; + __entry->range_start = (long)wbc->range_start; + __entry->range_end = (long)wbc->range_end; + ), + + TP_printk("dev %s wbc=%x towrt=%ld skip=%ld sb=%d mode=%d kupd=%d " + "bgrd=%d reclm=%d cyclic=%d more=%d older=0x%lx " + "start=0x%lx end=0x%lx", + __entry->name, + __entry->wbc, + __entry->nr_to_write, + __entry->pages_skipped, + __entry->sb, + __entry->sync_mode, + __entry->for_kupdate, + __entry->for_background, + __entry->for_reclaim, + __entry->range_cyclic, + __entry->more_io, + __entry->older_than_this, + __entry->range_start, + __entry->range_end) +) + +#define DEFINE_WBC_EVENT(name) \ +DEFINE_EVENT(wbc_class, name, \ + TP_PROTO(struct writeback_control *wbc), \ + TP_ARGS(wbc)) +DEFINE_WBC_EVENT(wbc_writeback_start); +DEFINE_WBC_EVENT(wbc_writeback_written); +DEFINE_WBC_EVENT(wbc_writeback_wait); +DEFINE_WBC_EVENT(wbc_balance_dirty_start); +DEFINE_WBC_EVENT(wbc_balance_dirty_written); +DEFINE_WBC_EVENT(wbc_balance_dirty_wait); + #endif /* _TRACE_WRITEBACK_H */ /* This part must be outside protection */ diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 5fa63bd..345a730 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -34,6 +34,7 @@ #include #include #include +#include /* * After a CPU has dirtied this many pages, balance_dirty_pages_ratelimited @@ -536,11 +537,13 @@ static void balance_dirty_pages(struct address_space *mapping, * threshold otherwise wait until the disk writes catch * up. */ + trace_wbc_balance_dirty_start(&wbc); if (bdi_nr_reclaimable > bdi_thresh) { writeback_inodes_wbc(&wbc); pages_written += write_chunk - wbc.nr_to_write; get_dirty_limits(&background_thresh, &dirty_thresh, &bdi_thresh, bdi); + trace_wbc_balance_dirty_written(&wbc); } /* @@ -566,6 +569,7 @@ static void balance_dirty_pages(struct address_space *mapping, if (pages_written >= write_chunk) break; /* We've done our duty */ + trace_wbc_balance_dirty_wait(&wbc); __set_current_state(TASK_INTERRUPTIBLE); io_schedule_timeout(pause); -- 1.7.1 From SRS0+Ohgc+8+fromorbit.com=dave@internode.on.net Mon Jun 7 19:36:38 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.1 required=5.0 tests=BAYES_00,SUBJ_ATTENTION autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o580acf4179731 for ; Mon, 7 Jun 2010 19:36:38 -0500 X-ASG-Debug-ID: 1275957547-287b03010000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id C14251D57632 for ; Mon, 7 Jun 2010 17:39:08 -0700 (PDT) Received: from mail.internode.on.net (bld-mail12.adl6.internode.on.net [150.101.137.97]) by cuda.sgi.com with ESMTP id YlEtfoENHVIMiH3c for ; Mon, 07 Jun 2010 17:39:08 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27125554-1927428 for multiple; Tue, 08 Jun 2010 10:08:31 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OLmpp-0001wc-Rl; Tue, 08 Jun 2010 10:38:29 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OLmpc-0006Au-0t; Tue, 08 Jun 2010 10:38:16 +1000 From: Dave Chinner To: torvalds@linux-foundation.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: [PATCH 4/6] writeback: pay attention to wbc->nr_to_write in write_cache_pages Subject: [PATCH 4/6] writeback: pay attention to wbc->nr_to_write in write_cache_pages Date: Tue, 8 Jun 2010 10:38:05 +1000 Message-Id: <1275957487-23633-5-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1275957487-23633-1-git-send-email-david@fromorbit.com> References: <1275957487-23633-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail12.adl6.internode.on.net[150.101.137.97] X-Barracuda-Start-Time: 1275957549 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31920 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner If a filesystem writes more than one page in ->writepage, write_cache_pages fails to notice this and continues to attempt writeback when wbc->nr_to_write has gone negative - this trace was captured from XFS: wbc_writeback_start: towrt=1024 wbc_writepage: towrt=1024 wbc_writepage: towrt=0 wbc_writepage: towrt=-1 wbc_writepage: towrt=-5 wbc_writepage: towrt=-21 wbc_writepage: towrt=-85 This has adverse effects on filesystem writeback behaviour. write_cache_pages() needs to terminate after a certain number of pages are written, not after a certain number of calls to ->writepage are made. This is a regression introduced by 17bc6c30cf6bfffd816bdc53682dd46fc34a2cf4 ("vfs: Add no_nrwrite_index_update writeback control flag"), but cannot be reverted directly due to subsequent bug fixes that have gone in on top of it. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig --- include/linux/writeback.h | 9 --------- include/trace/events/ext4.h | 5 +---- mm/page-writeback.c | 15 +++++---------- 3 files changed, 6 insertions(+), 23 deletions(-) diff --git a/include/linux/writeback.h b/include/linux/writeback.h index f641346..d63ef8f 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -56,15 +56,6 @@ struct writeback_control { unsigned for_reclaim:1; /* Invoked from the page allocator */ unsigned range_cyclic:1; /* range_start is cyclic */ unsigned more_io:1; /* more io to be dispatched */ - /* - * write_cache_pages() won't update wbc->nr_to_write and - * mapping->writeback_index if no_nrwrite_index_update - * is set. write_cache_pages() may write more than we - * requested and we want to make sure nr_to_write and - * writeback_index are updated in a consistent manner - * so we use a single control to update them - */ - unsigned no_nrwrite_index_update:1; }; /* diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index f5b1ba9..f3865c7 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -306,7 +306,6 @@ TRACE_EVENT(ext4_da_writepages_result, __field( int, pages_written ) __field( long, pages_skipped ) __field( char, more_io ) - __field( char, no_nrwrite_index_update ) __field( pgoff_t, writeback_index ) ), @@ -317,16 +316,14 @@ TRACE_EVENT(ext4_da_writepages_result, __entry->pages_written = pages_written; __entry->pages_skipped = wbc->pages_skipped; __entry->more_io = wbc->more_io; - __entry->no_nrwrite_index_update = wbc->no_nrwrite_index_update; __entry->writeback_index = inode->i_mapping->writeback_index; ), - TP_printk("dev %s ino %lu ret %d pages_written %d pages_skipped %ld more_io %d no_nrwrite_index_update %d writeback_index %lu", + TP_printk("dev %s ino %lu ret %d pages_written %d pages_skipped %ld more_io %d writeback_index %lu", jbd2_dev_to_name(__entry->dev), (unsigned long) __entry->ino, __entry->ret, __entry->pages_written, __entry->pages_skipped, __entry->more_io, - __entry->no_nrwrite_index_update, (unsigned long) __entry->writeback_index) ); diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 7ac39c5..0acadee 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -839,7 +839,6 @@ int write_cache_pages(struct address_space *mapping, pgoff_t done_index; int cycled; int range_whole = 0; - long nr_to_write = wbc->nr_to_write; pagevec_init(&pvec, 0); if (wbc->range_cyclic) { @@ -940,11 +939,10 @@ continue_unlock: done = 1; break; } - } + } - if (nr_to_write > 0) { - nr_to_write--; - if (nr_to_write == 0 && + if (wbc->nr_to_write > 0) { + if (--wbc->nr_to_write == 0 && wbc->sync_mode == WB_SYNC_NONE) { /* * We stop writing back only if we are @@ -975,11 +973,8 @@ continue_unlock: end = writeback_index - 1; goto retry; } - if (!wbc->no_nrwrite_index_update) { - if (wbc->range_cyclic || (range_whole && nr_to_write > 0)) - mapping->writeback_index = done_index; - wbc->nr_to_write = nr_to_write; - } + if (wbc->range_cyclic || (range_whole && wbc->nr_to_write > 0)) + mapping->writeback_index = done_index; return ret; } -- 1.7.1 From SRS0+5mSt+8+fromorbit.com=dave@internode.on.net Mon Jun 7 19:36:38 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o580ac4b179733 for ; Mon, 7 Jun 2010 19:36:38 -0500 X-ASG-Debug-ID: 1275957548-3472025c0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 325071D57634 for ; Mon, 7 Jun 2010 17:39:08 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id CiwR2Tcza0dPudpl for ; Mon, 07 Jun 2010 17:39:08 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27221725-1927428 for multiple; Tue, 08 Jun 2010 10:08:31 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OLmpf-0001wV-UU; Tue, 08 Jun 2010 10:38:19 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OLmpc-0006Ay-6K; Tue, 08 Jun 2010 10:38:16 +1000 From: Dave Chinner To: torvalds@linux-foundation.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: [PATCH 5/6] xfs: remove nr_to_write writeback windup. Subject: [PATCH 5/6] xfs: remove nr_to_write writeback windup. Date: Tue, 8 Jun 2010 10:38:06 +1000 Message-Id: <1275957487-23633-6-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1275957487-23633-1-git-send-email-david@fromorbit.com> References: <1275957487-23633-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1275957550 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31920 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner Now that the background flush code has been fixed, we shouldn't need to silently multiply the wbc->nr_to_write to get good writeback. Remove that code. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig --- fs/xfs/linux-2.6/xfs_aops.c | 8 -------- 1 files changed, 0 insertions(+), 8 deletions(-) diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c index a0fa3bf..34640d6 100644 --- a/fs/xfs/linux-2.6/xfs_aops.c +++ b/fs/xfs/linux-2.6/xfs_aops.c @@ -1381,14 +1381,6 @@ xfs_vm_writepage( if (!page_has_buffers(page)) create_empty_buffers(page, 1 << inode->i_blkbits, 0); - - /* - * VM calculation for nr_to_write seems off. Bump it way - * up, this gets simple streaming writes zippy again. - * To be reviewed again after Jens' writeback changes. - */ - wbc->nr_to_write *= 4; - /* * Convert delayed allocate, unwritten or unmapped space * to real space and flush out to disk. -- 1.7.1 From SRS0+UgXc+8+fromorbit.com=dave@internode.on.net Mon Jun 7 19:36:39 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o580adeo179741 for ; Mon, 7 Jun 2010 19:36:39 -0500 X-ASG-Debug-ID: 1275957549-5c7401e70000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id B1DB33A05F4 for ; Mon, 7 Jun 2010 17:39:09 -0700 (PDT) Received: from mail.internode.on.net (bld-mail19.adl2.internode.on.net [150.101.137.104]) by cuda.sgi.com with ESMTP id LOTof8nEjmus1CE7 for ; Mon, 07 Jun 2010 17:39:09 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26980064-1927428 for multiple; Tue, 08 Jun 2010 10:08:31 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OLmpp-0001wd-Vo; Tue, 08 Jun 2010 10:38:30 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OLmpc-0006B1-8Y; Tue, 08 Jun 2010 10:38:16 +1000 From: Dave Chinner To: torvalds@linux-foundation.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: [PATCH 6/6] writeback: limit write_cache_pages integrity scanning to current EOF Subject: [PATCH 6/6] writeback: limit write_cache_pages integrity scanning to current EOF Date: Tue, 8 Jun 2010 10:38:07 +1000 Message-Id: <1275957487-23633-7-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1275957487-23633-1-git-send-email-david@fromorbit.com> References: <1275957487-23633-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail19.adl2.internode.on.net[150.101.137.104] X-Barracuda-Start-Time: 1275957550 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31920 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner sync can currently take a really long time if a concurrent writer is extending a file. The problem is that the dirty pages on the address space grow in the same direction as write_cache_pages scans, so if the writer keeps ahead of writeback, the writeback will not terminate until the writer stops adding dirty pages. For a data integrity sync, we only need to write the pages dirty at the time we start the writeback, so we can stop scanning once we get to the page that was at the end of the file at the time the scan started. This will prevent operations like copying a large file preventing sync from completing as it will not write back pages that were dirtied after the sync was started. This does not impact the existing integrity guarantees, as any dirty page (old or new) within the EOF range at the start of the scan will still be captured. This patch will not prevent sync from blocking on large writes into holes. That requires more complex intervention while this patch only addresses the common append-case of this sync holdoff. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig --- mm/page-writeback.c | 15 +++++++++++++++ 1 files changed, 15 insertions(+), 0 deletions(-) diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 0acadee..1a361f0 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -855,7 +855,22 @@ int write_cache_pages(struct address_space *mapping, if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX) range_whole = 1; cycled = 1; /* ignore range_cyclic tests */ + + /* + * If this is a data integrity sync, cap the writeback to the + * current end of file. Any extension to the file that occurs + * after this is a new write and we don't need to write those + * pages out to fulfil our data integrity requirements. If we + * try to write them out, we can get stuck in this scan until + * the concurrent writer stops adding dirty pages and extending + * EOF. + */ + if (wbc->sync_mode == WB_SYNC_ALL && + wbc->range_end == LLONG_MAX) { + end = i_size_read(mapping->host) >> PAGE_CACHE_SHIFT; + } } + retry: done_index = index; while (!done && (index <= end)) { -- 1.7.1 From SRS0+zsqh+8+fromorbit.com=dave@internode.on.net Mon Jun 7 19:36:42 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,J_CHICKENPOX_44, J_CHICKENPOX_45 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o580afiX179774 for ; Mon, 7 Jun 2010 19:36:42 -0500 X-ASG-Debug-ID: 1275957723-575603e10000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 8D526158C5B8 for ; Mon, 7 Jun 2010 17:42:03 -0700 (PDT) Received: from mail.internode.on.net (bld-mail14.adl6.internode.on.net [150.101.137.99]) by cuda.sgi.com with ESMTP id byJMsoKd88AgwXXo for ; Mon, 07 Jun 2010 17:42:03 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27395569-1927428 for multiple; Tue, 08 Jun 2010 10:08:31 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OLmpp-0001wI-Hh; Tue, 08 Jun 2010 10:38:29 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OLmpb-0006An-Qc; Tue, 08 Jun 2010 10:38:15 +1000 From: Dave Chinner To: torvalds@linux-foundation.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: [PATCH 1/6] writeback: initial tracing support Subject: [PATCH 1/6] writeback: initial tracing support Date: Tue, 8 Jun 2010 10:38:02 +1000 Message-Id: <1275957487-23633-2-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1275957487-23633-1-git-send-email-david@fromorbit.com> References: <1275957487-23633-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail14.adl6.internode.on.net[150.101.137.99] X-Barracuda-Start-Time: 1275957725 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31921 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: From: Jens Axboe Trace queue/sched/exec parts of the writeback loop. This provides insight into when and why flusher threads are scheduled to run. e.g a sync invocation leaves a trace like: sync-2798 [006] 611323.335713: writeback_queue: 253:16: pages=87879, sb=0, kupdate=0, range_cyclic=0 for_background=0 sync-2798 [006] 611323.335718: writeback_sched: work=37c0, task=task sync-2798 [006] 611323.335817: writeback_queue: 8:0: pages=92680, sb=1, kupdate=0, range_cyclic=-1 for_background=0 sync-2798 [006] 611323.335819: writeback_sched: work=35c0, task=task sync-2798 [006] 611323.335855: writeback_queue: 253:16: pages=92680, sb=1, kupdate=0, range_cyclic=-1 for_background=0 sync-2798 [006] 611323.335857: writeback_sched: work=36c0, task=task sync-2798 [006] 611323.335890: writeback_queue: 8:0: pages=9223372036854775807, sb=1, kupdate=0, range_cyclic=0 for_background=0 sync-2798 [006] 611323.335891: writeback_sched: work=fe58, task=task sync-2798 [006] 611323.377341: writeback_queue: 253:16: pages=9223372036854775807, sb=1, kupdate=0, range_cyclic=0 for_background=0 sync-2798 [006] 611323.377346: writeback_sched: work=fe58, task=task This also lays the foundation for adding more writeback tracing to provide deeper insight into the whole writeback path. Signed-off-by: Jens Axboe Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig --- fs/fs-writeback.c | 45 ++++++++-- include/trace/events/writeback.h | 171 ++++++++++++++++++++++++++++++++++++++ mm/backing-dev.c | 3 + 3 files changed, 209 insertions(+), 10 deletions(-) create mode 100644 include/trace/events/writeback.h diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 1d1088f..0949dfd 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -26,15 +26,9 @@ #include #include #include +#include #include "internal.h" -#define inode_to_bdi(inode) ((inode)->i_mapping->backing_dev_info) - -/* - * We don't actually have pdflush, but this one is exported though /proc... - */ -int nr_pdflush_threads; - /* * Passed into wb_writeback(), essentially a subset of writeback_control */ @@ -62,6 +56,21 @@ struct bdi_work { unsigned long state; /* flag bits, see WS_* */ }; +/* + * Include the creation of the trace points after defining the bdi_work and + * wb_writeback_args structures so that the definitions remain local to this + * file. + */ +#define CREATE_TRACE_POINTS +#include + +#define inode_to_bdi(inode) ((inode)->i_mapping->backing_dev_info) + +/* + * We don't actually have pdflush, but this one is exported though /proc... + */ +int nr_pdflush_threads; + enum { WS_USED_B = 0, WS_ONSTACK_B, @@ -136,6 +145,8 @@ static void wb_work_complete(struct bdi_work *work) static void wb_clear_pending(struct bdi_writeback *wb, struct bdi_work *work) { + trace_writeback_clear(work); + /* * The caller has retrieved the work arguments from this work, * drop our reference. If this is the last ref, delete and free it @@ -171,12 +182,16 @@ static void bdi_queue_work(struct backing_dev_info *bdi, struct bdi_work *work) * If the default thread isn't there, make sure we add it. When * it gets created and wakes up, we'll run this work. */ - if (unlikely(list_empty_careful(&bdi->wb_list))) + if (unlikely(list_empty_careful(&bdi->wb_list))) { + trace_writeback_sched(bdi, work, "default"); wake_up_process(default_backing_dev_info.wb.task); - else { + } else { struct bdi_writeback *wb = &bdi->wb; + struct task_struct *task = wb->task; - if (wb->task) + trace_writeback_sched(bdi, work, task ? "task" : "notask"); + + if (task) wake_up_process(wb->task); } } @@ -203,6 +218,7 @@ static void bdi_alloc_queue_work(struct backing_dev_info *bdi, work = kmalloc(sizeof(*work), GFP_ATOMIC); if (work) { bdi_work_init(work, args); + trace_writeback_queue(bdi, args); bdi_queue_work(bdi, work); } else { struct bdi_writeback *wb = &bdi->wb; @@ -236,6 +252,7 @@ static void bdi_sync_writeback(struct backing_dev_info *bdi, bdi_work_init(&work, &args); work.state |= WS_ONSTACK; + trace_writeback_queue(bdi, &args); bdi_queue_work(bdi, &work); bdi_wait_on_work_clear(&work); } @@ -907,6 +924,8 @@ long wb_do_writeback(struct bdi_writeback *wb, int force_wait) if (force_wait) work->args.sync_mode = args.sync_mode = WB_SYNC_ALL; + trace_writeback_exec(work); + /* * If this isn't a data integrity operation, just notify * that we have seen this work and we are now starting it. @@ -942,9 +961,13 @@ int bdi_writeback_task(struct bdi_writeback *wb) unsigned long wait_jiffies = -1UL; long pages_written; + trace_writeback_thread_start(1); + while (!kthread_should_stop()) { pages_written = wb_do_writeback(wb, 0); + trace_writeback_pages_written(pages_written); + if (pages_written) last_active = jiffies; else if (wait_jiffies != -1UL) { @@ -974,6 +997,8 @@ int bdi_writeback_task(struct bdi_writeback *wb) try_to_freeze(); } + trace_writeback_thread_start(0); + return 0; } diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h new file mode 100644 index 0000000..6f510fa --- /dev/null +++ b/include/trace/events/writeback.h @@ -0,0 +1,171 @@ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM writeback + +#if !defined(_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_WRITEBACK_H + +#include +#include + +TRACE_EVENT(writeback_queue, + + TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_args *args), + + TP_ARGS(bdi, args), + + TP_STRUCT__entry( + __array(char, name, 16) + __field(long, nr_pages) + __field(int, sb) + __field(int, sync_mode) + __field(int, for_kupdate) + __field(int, range_cyclic) + __field(int, for_background) + ), + + TP_fast_assign( + strlcpy(__entry->name, dev_name(bdi->dev), 16); + __entry->nr_pages = args->nr_pages; + __entry->sb = !!args->sb; + __entry->for_kupdate = args->for_kupdate; + __entry->range_cyclic = args->range_cyclic; + __entry->for_background = args->for_background; + ), + + TP_printk("%s: pages=%ld, sb=%d, kupdate=%d, range_cyclic=%d " + "for_background=%d", __entry->name, __entry->nr_pages, + __entry->sb, __entry->for_kupdate, + __entry->range_cyclic, __entry->for_background) +); + +TRACE_EVENT(writeback_sched, + + TP_PROTO(struct backing_dev_info *bdi, struct bdi_work *work, + const char *msg), + + TP_ARGS(bdi, work, msg), + + TP_STRUCT__entry( + __array(char, name, 16) + __field(unsigned int, work) + __array(char, task, 8) + ), + + TP_fast_assign( + strlcpy(__entry->name, dev_name(bdi->dev), 16); + __entry->work = (unsigned long) work & 0xffff; + snprintf(__entry->task, 8, "%s", msg); + ), + + TP_printk("work=%x, task=%s", __entry->work, __entry->task) +); + +TRACE_EVENT(writeback_exec, + + TP_PROTO(struct bdi_work *work), + + TP_ARGS(work), + + TP_STRUCT__entry( + __field(unsigned int, work) + __field(long, nr_pages) + __field(int, sb) + __field(int, sync_mode) + __field(int, for_kupdate) + __field(int, range_cyclic) + __field(int, for_background) + ), + + TP_fast_assign( + __entry->work = (unsigned long) work & 0xffff; + __entry->nr_pages = work->args.nr_pages; + __entry->sb = !!work->args.sb; + __entry->for_kupdate = work->args.for_kupdate; + __entry->range_cyclic = work->args.range_cyclic; + __entry->for_background = work->args.for_background; + + ), + + TP_printk("work=%x pages=%ld, sb=%d, kupdate=%d, range_cyclic=%d" + " for_background=%d", __entry->work, + __entry->nr_pages, __entry->sb, __entry->for_kupdate, + __entry->range_cyclic, __entry->for_background) +); + +TRACE_EVENT(writeback_clear, + + TP_PROTO(struct bdi_work *work), + + TP_ARGS(work), + + TP_STRUCT__entry( + __field(struct bdi_work *, work) + __field(int, refs) + ), + + TP_fast_assign( + __entry->work = work; + __entry->refs = atomic_read(&work->pending); + ), + + TP_printk("work=%p, refs=%d", __entry->work, __entry->refs) +); + +TRACE_EVENT(writeback_pages_written, + + TP_PROTO(long pages_written), + + TP_ARGS(pages_written), + + TP_STRUCT__entry( + __field(long, pages) + ), + + TP_fast_assign( + __entry->pages = pages_written; + ), + + TP_printk("%ld", __entry->pages) +); + + +TRACE_EVENT(writeback_thread_start, + + TP_PROTO(int start), + + TP_ARGS(start), + + TP_STRUCT__entry( + __field(int, start) + ), + + TP_fast_assign( + __entry->start = start; + ), + + TP_printk("%s", __entry->start ? "started" : "exited") +); + +TRACE_EVENT(writeback_bdi_register, + + TP_PROTO(const char *name, int start), + + TP_ARGS(name, start), + + TP_STRUCT__entry( + __array(char, name, 16) + __field(int, start) + ), + + TP_fast_assign( + strlcpy(__entry->name, name, 16); + __entry->start = start; + ), + + TP_printk("%s: %s", __entry->name, + __entry->start ? "registered" : "unregistered") +); +#endif /* _TRACE_WRITEBACK_H */ + +/* This part must be outside protection */ +#include diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 660a87a..1f7723b 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -10,6 +10,7 @@ #include #include #include +#include static atomic_long_t bdi_seq = ATOMIC_LONG_INIT(0); @@ -585,6 +586,7 @@ int bdi_register(struct backing_dev_info *bdi, struct device *parent, bdi_debug_register(bdi, dev_name(dev)); set_bit(BDI_registered, &bdi->state); + trace_writeback_bdi_register(dev_name(dev), 1); exit: return ret; } @@ -647,6 +649,7 @@ static void bdi_prune_sb(struct backing_dev_info *bdi) void bdi_unregister(struct backing_dev_info *bdi) { if (bdi->dev) { + trace_writeback_bdi_register(dev_name(bdi->dev), 0); bdi_prune_sb(bdi); if (!bdi_cap_flush_forker(bdi)) -- 1.7.1 From npiggin@suse.de Tue Jun 8 00:36:04 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o585a45h193784 for ; Tue, 8 Jun 2010 00:36:04 -0500 X-ASG-Debug-ID: 1275975514-3ca002780000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mx2.suse.de (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id D91D6149EF2F for ; Mon, 7 Jun 2010 22:38:34 -0700 (PDT) Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id TlNWYwOugI5Xbv2W for ; Mon, 07 Jun 2010 22:38:34 -0700 (PDT) Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.221.2]) by mx2.suse.de (Postfix) with ESMTP id D9DDB8655F; Tue, 8 Jun 2010 07:38:33 +0200 (CEST) Received: by laptop.local0.net (Postfix, from userid 1000) id 55FD129819; Tue, 8 Jun 2010 15:38:31 +1000 (EST) Date: Tue, 8 Jun 2010 15:38:31 +1000 From: Nick Piggin To: Dave Chinner Cc: torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: Re: [PATCH 6/6] writeback: limit write_cache_pages integrity scanning to current EOF Subject: Re: [PATCH 6/6] writeback: limit write_cache_pages integrity scanning to current EOF Message-ID: <20100608053831.GR26335@laptop> References: <1275957487-23633-1-git-send-email-david@fromorbit.com> <1275957487-23633-7-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1275957487-23633-7-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: cantor2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1275975515 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31939 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 08, 2010 at 10:38:07AM +1000, Dave Chinner wrote: > From: Dave Chinner > > sync can currently take a really long time if a concurrent writer is > extending a file. The problem is that the dirty pages on the address > space grow in the same direction as write_cache_pages scans, so if > the writer keeps ahead of writeback, the writeback will not > terminate until the writer stops adding dirty pages. > > For a data integrity sync, we only need to write the pages dirty at > the time we start the writeback, so we can stop scanning once we get > to the page that was at the end of the file at the time the scan > started. > > This will prevent operations like copying a large file preventing > sync from completing as it will not write back pages that were > dirtied after the sync was started. This does not impact the > existing integrity guarantees, as any dirty page (old or new) > within the EOF range at the start of the scan will still be > captured. > > This patch will not prevent sync from blocking on large writes into > holes. The writes don't have to be into holes to cause this starvation problem, do they? > That requires more complex intervention while this patch only > addresses the common append-case of this sync holdoff. Jan's tagging patch looks pretty good to me and isn't so complex. I think we should just take that. From npiggin@suse.de Tue Jun 8 00:41:02 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.1 required=5.0 tests=BAYES_00,SUBJ_ATTENTION autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o585f1tj193948 for ; Tue, 8 Jun 2010 00:41:01 -0500 X-ASG-Debug-ID: 1275975812-457503ac0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mx2.suse.de (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 74DD43A149F for ; Mon, 7 Jun 2010 22:43:32 -0700 (PDT) Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id woekTSMvkqTggbFG for ; Mon, 07 Jun 2010 22:43:32 -0700 (PDT) Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.221.2]) by mx2.suse.de (Postfix) with ESMTP id 1A2E28655F; Tue, 8 Jun 2010 07:43:32 +0200 (CEST) Received: by laptop.local0.net (Postfix, from userid 1000) id 4A4CD29819; Tue, 8 Jun 2010 15:43:30 +1000 (EST) Date: Tue, 8 Jun 2010 15:43:30 +1000 From: Nick Piggin To: Dave Chinner Cc: torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: Re: [PATCH 4/6] writeback: pay attention to wbc->nr_to_write in write_cache_pages Subject: Re: [PATCH 4/6] writeback: pay attention to wbc->nr_to_write in write_cache_pages Message-ID: <20100608054330.GS26335@laptop> References: <1275957487-23633-1-git-send-email-david@fromorbit.com> <1275957487-23633-5-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1275957487-23633-5-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: cantor2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1275975813 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31939 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 08, 2010 at 10:38:05AM +1000, Dave Chinner wrote: > From: Dave Chinner > > If a filesystem writes more than one page in ->writepage, write_cache_pages > fails to notice this and continues to attempt writeback when wbc->nr_to_write > has gone negative - this trace was captured from XFS: > > > wbc_writeback_start: towrt=1024 > wbc_writepage: towrt=1024 > wbc_writepage: towrt=0 > wbc_writepage: towrt=-1 > wbc_writepage: towrt=-5 > wbc_writepage: towrt=-21 > wbc_writepage: towrt=-85 > > This has adverse effects on filesystem writeback behaviour. write_cache_pages() > needs to terminate after a certain number of pages are written, not after a > certain number of calls to ->writepage are made. This is a regression > introduced by 17bc6c30cf6bfffd816bdc53682dd46fc34a2cf4 ("vfs: Add > no_nrwrite_index_update writeback control flag"), but cannot be reverted > directly due to subsequent bug fixes that have gone in on top of it. > > Signed-off-by: Dave Chinner > Reviewed-by: Christoph Hellwig Acked-by: Nick Piggin From npiggin@suse.de Tue Jun 8 00:42:19 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o585gJXO193995 for ; Tue, 8 Jun 2010 00:42:19 -0500 X-ASG-Debug-ID: 1275975890-4214022d0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mx1.suse.de (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 4E9E9149F33A for ; Mon, 7 Jun 2010 22:44:51 -0700 (PDT) Received: from mx1.suse.de (cantor.suse.de [195.135.220.2]) by cuda.sgi.com with ESMTP id 8Rsfvpq6nIsYi1jf for ; Mon, 07 Jun 2010 22:44:51 -0700 (PDT) X-ASG-Whitelist: Barracuda Reputation Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.221.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.suse.de (Postfix) with ESMTP id A10255362F; Tue, 8 Jun 2010 07:44:49 +0200 (CEST) Received: by laptop.local0.net (Postfix, from userid 1000) id A299229819; Tue, 8 Jun 2010 15:44:46 +1000 (EST) Date: Tue, 8 Jun 2010 15:44:46 +1000 From: Nick Piggin To: Dave Chinner Cc: torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: Re: [PATCH 0/6] writeback: tracing and fixes V4 Subject: Re: [PATCH 0/6] writeback: tracing and fixes V4 Message-ID: <20100608054446.GT26335@laptop> References: <1275957487-23633-1-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1275957487-23633-1-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: cantor.suse.de[195.135.220.2] X-Barracuda-Start-Time: 1275975891 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 08, 2010 at 10:38:01AM +1000, Dave Chinner wrote: > Hi Linus, > > Can you please consider this patch series for 2.6.35? If you don't > want the tracing at this stage of the release process, I can redo > the series with just the bug fixes. However, given the regularity > with which we break the writeback code in subtle ways, the tracing > is probably just as important as the bug fixes. Oh, I don't have a problem with your EOF fix being merged now, as Jan's patch isn't suitable for 2.6.35. From SRS0+nIwr+8+fromorbit.com=david@internode.on.net Tue Jun 8 01:57:03 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o586v2eC197078 for ; Tue, 8 Jun 2010 01:57:03 -0500 X-ASG-Debug-ID: 1275980372-136702070000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 0F72C3A1513 for ; Mon, 7 Jun 2010 23:59:32 -0700 (PDT) Received: from mail.internode.on.net (bld-mail17.adl2.internode.on.net [150.101.137.102]) by cuda.sgi.com with ESMTP id WiO6p7gDUFbCayxE for ; Mon, 07 Jun 2010 23:59:32 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 26997630-1927428 for multiple; Tue, 08 Jun 2010 16:29:24 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OLsmQ-0002Gu-U4; Tue, 08 Jun 2010 16:59:22 +1000 Date: Tue, 8 Jun 2010 16:59:22 +1000 From: Dave Chinner To: Nick Piggin Cc: torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: Re: [PATCH 6/6] writeback: limit write_cache_pages integrity scanning to current EOF Subject: Re: [PATCH 6/6] writeback: limit write_cache_pages integrity scanning to current EOF Message-ID: <20100608065922.GA7869@dastard> References: <1275957487-23633-1-git-send-email-david@fromorbit.com> <1275957487-23633-7-git-send-email-david@fromorbit.com> <20100608053831.GR26335@laptop> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100608053831.GR26335@laptop> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail17.adl2.internode.on.net[150.101.137.102] X-Barracuda-Start-Time: 1275980374 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31946 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 08, 2010 at 03:38:31PM +1000, Nick Piggin wrote: > On Tue, Jun 08, 2010 at 10:38:07AM +1000, Dave Chinner wrote: > > From: Dave Chinner > > > > sync can currently take a really long time if a concurrent writer is > > extending a file. The problem is that the dirty pages on the address > > space grow in the same direction as write_cache_pages scans, so if > > the writer keeps ahead of writeback, the writeback will not > > terminate until the writer stops adding dirty pages. > > > > For a data integrity sync, we only need to write the pages dirty at > > the time we start the writeback, so we can stop scanning once we get > > to the page that was at the end of the file at the time the scan > > started. > > > > This will prevent operations like copying a large file preventing > > sync from completing as it will not write back pages that were > > dirtied after the sync was started. This does not impact the > > existing integrity guarantees, as any dirty page (old or new) > > within the EOF range at the start of the scan will still be > > captured. > > > > This patch will not prevent sync from blocking on large writes into > > holes. > > The writes don't have to be into holes to cause this starvation > problem, do they? No, they don't. > > That requires more complex intervention while this patch only > > addresses the common append-case of this sync holdoff. > > Jan's tagging patch looks pretty good to me and isn't so complex. > I think we should just take that. I don't care which one we take as long as it is actually tested by more than the submitter and we get everything in for 2.6.35... Cheers, Dave. -- Dave Chinner david@fromorbit.com From BATV+c853dde7a93cc9944cf2+2480+infradead.org+hch@bombadil.srs.infradead.org Tue Jun 8 03:01:05 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58813RA199580 for ; Tue, 8 Jun 2010 03:01:05 -0500 X-ASG-Debug-ID: 1275984388-08d000200000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 340EA10C5853 for ; Tue, 8 Jun 2010 01:06:28 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id m3eGG6dOlKlrHYCN for ; Tue, 08 Jun 2010 01:06:28 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OLtmP-0006P5-Rh; Tue, 08 Jun 2010 08:03:27 +0000 Date: Tue, 8 Jun 2010 04:03:25 -0400 From: Christoph Hellwig To: Dave Chinner Cc: Christoph Hellwig , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: Re: [PATCH 0/6] writeback: tracing and fixes V3. Subject: Re: [PATCH 0/6] writeback: tracing and fixes V3. Message-ID: <20100608080324.GA3119@infradead.org> References: <1275609328-12514-1-git-send-email-david@fromorbit.com> <20100604074938.GB4448@infradead.org> <20100608001115.GB6965@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100608001115.GB6965@dastard> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1275984389 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 08, 2010 at 10:11:15AM +1000, Dave Chinner wrote: > On Fri, Jun 04, 2010 at 03:49:38AM -0400, Christoph Hellwig wrote: > > > > Not sure what the rules for new tracepoints are, but in addition to the > > fixes I'd really love to see the tracepoints in 2.6.35. > > Personally I think they are just as important (or even more > important) than the bug fixes because we seem to break this code > regularly because nobody can clearly see what the internals are > doing to verify their change is working correctly. Given that Linus is pretty strict about only taking regression fixes I'd rather get the regression fix in and miss out on the tracing until the next merge window then missing out on everything. From SRS0+R53I+8+fromorbit.com=david@internode.on.net Tue Jun 8 07:26:54 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58CQsTH208087 for ; Tue, 8 Jun 2010 07:26:54 -0500 X-ASG-Debug-ID: 1276000163-09fd01400000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 232A03A2460 for ; Tue, 8 Jun 2010 05:29:23 -0700 (PDT) Received: from mail.internode.on.net (bld-mail15.adl6.internode.on.net [150.101.137.100]) by cuda.sgi.com with ESMTP id Vvu2E9DAbzs2XjTO for ; Tue, 08 Jun 2010 05:29:23 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 15593429-1927428 for multiple; Tue, 08 Jun 2010 21:59:21 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OLxvj-0002a6-PV; Tue, 08 Jun 2010 22:29:19 +1000 Date: Tue, 8 Jun 2010 22:29:19 +1000 From: Dave Chinner To: Michael Tokarev Cc: Linux-kernel , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown Subject: Re: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown Message-ID: <20100608122919.GC7869@dastard> References: <4C0E13A7.20402@msgid.tls.msk.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C0E13A7.20402@msgid.tls.msk.ru> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail15.adl6.internode.on.net[150.101.137.100] X-Barracuda-Start-Time: 1276000165 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31967 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean [ cc'd XFS list ] On Tue, Jun 08, 2010 at 01:55:51PM +0400, Michael Tokarev wrote: > Hello. > > I've got a.. difficult issue here, and am asking if anyone else > has some expirence or information about it. > > Production environment (database). Machine with an Adaptec > RAID SCSI controller, 6 drives in raid10 array, XFS filesystem > and Oracle database on top of it (with - hopefully - proper > sunit/swidth). > > Upgrading kernel from 2.6.27 to 2.6.32, and users starts screaming > about very bad performance. Iostat reports increased I/O latencies, > I/O time increases from ~5ms to ~30ms. Switching back to 2.6.27, > and everything is back to normal (or, rather, usual). > > I tried testing I/O with a sample program which performs direct random > I/O on a given device, and all speeds are actually better in .32 > compared with .27, except of random concurrent r+w test, where .27 > gives a bit more chances to reads than .32. Looking at the synthetic > tests I'd expect .32 to be faster, but apparently it is not. > > This is only one machine here which is still running 2.6.27, all the > rest are upgraded to 2.6.32, and I see good performance of .32 there. > But this is also the only machine with hardware raid controller, which > is onboard and hence not easy to get rid of, so I'm sorta forced to > use it (I prefer software raid solution because of numerous reasons). > > One possible cause of this that comes to mind is block device write > barriers. But I can't find when they're actually implemented. > > The most problematic issue here is that this is only one machine that > behaves like this, and it is a production server, so I've very little > chances to experiment with it. > > So before the next try, I'd love to have some suggestions about what > to look for. In particular, I think it's worth the effort to look > at write barriers, but again, I don't know how to check if they're > actually being used. > > Anyone have suggestions for me to collect and to look at? http://xfs.org/index.php/XFS_FAQ#Q._Should_barriers_be_enabled_with_storage_which_has_a_persistent_write_cache.3F Cheers, Dave. -- Dave Chinner david@fromorbit.com From sandeen@sandeen.net Tue Jun 8 11:03:54 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58G3rn8220880 for ; Tue, 8 Jun 2010 11:03:54 -0500 X-ASG-Debug-ID: 1276013184-3d1002440000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.sandeen.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 8AE2D1B1B50E for ; Tue, 8 Jun 2010 09:06:24 -0700 (PDT) Received: from mail.sandeen.net (64-131-60-146.usfamily.net [64.131.60.146]) by cuda.sgi.com with ESMTP id YUeKgmn24SHuGjcS for ; Tue, 08 Jun 2010 09:06:24 -0700 (PDT) Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sandeen.net (Postfix) with ESMTP id A6A7042B9C4D; Tue, 8 Jun 2010 11:06:23 -0500 (CDT) Message-ID: <4C0E6A7F.2060808@sandeen.net> Date: Tue, 08 Jun 2010 11:06:23 -0500 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.24 (Macintosh/20100228) MIME-Version: 1.0 To: aelder@sgi.com CC: xfs-oss X-ASG-Orig-Subj: Re: [PATCH V3] xfstests: use stat not lstat when examining devices Subject: Re: [PATCH V3] xfstests: use stat not lstat when examining devices References: <4C091B4E.5030503@sandeen.net> <4C0939B9.9000109@sandeen.net> <4C093F22.1010006@sandeen.net> <1275676010.2317.53.camel@doink> In-Reply-To: <1275676010.2317.53.camel@doink> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: 64-131-60-146.usfamily.net[64.131.60.146] X-Barracuda-Start-Time: 1276013184 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.42 X-Barracuda-Spam-Status: No, SCORE=-1.42 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_SC5_MJ1963, RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31980 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Alex Elder wrote: > On Fri, 2010-06-04 at 13:00 -0500, Eric Sandeen wrote: >> If you try running xfstests on lvm volumes which are symlinks, >> it'll fail to run several tests because our _require_scratch >> framework ultimately uses lstat not stat, and does not think >> the lvm device (which is usually a symlink to a dm-X device) >> is a block device. Sigh. >> >> Just calling stat(1) with -L to follow the link should >> suffice. > > I wonder whether we'll find stat(1) output ever varies > enough to affect this. > > But otherwise this looks good to me. > > Reviewed-by: Alex Elder > >> Signed-off-by: Eric Sandeen Sorry, after all that I'm retracting this patch. mount, /proc/mounts, /etc/mtab etc just get very confused when using symlinked devices, at least as xfstests wants to use them. For now I'll just make my uber-harness resolve symlinks to the real device (maybe that could be done in xfstests at some point) -Eric From torvalds@linux-foundation.org Tue Jun 8 12:39:16 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58HdGg8224638 for ; Tue, 8 Jun 2010 12:39:16 -0500 X-ASG-Debug-ID: 1276019083-62ad03270000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp1.linux-foundation.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id A780810C8EB0 for ; Tue, 8 Jun 2010 10:44:43 -0700 (PDT) Received: from smtp1.linux-foundation.org (smtp1.linux-foundation.org [140.211.169.13]) by cuda.sgi.com with ESMTP id lModEZ9wmIIV35kg for ; Tue, 08 Jun 2010 10:44:43 -0700 (PDT) Received: from imap1.linux-foundation.org (imap1.linux-foundation.org [140.211.169.55]) by smtp1.linux-foundation.org (8.14.2/8.13.5/Debian-3ubuntu1.1) with ESMTP id o58HfTPP028490 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 8 Jun 2010 10:41:30 -0700 Received: from localhost (localhost [127.0.0.1]) by imap1.linux-foundation.org (8.13.5.20060308/8.13.5/Debian-3ubuntu1.1) with ESMTP id o58HfSc3015363; Tue, 8 Jun 2010 10:41:29 -0700 Date: Tue, 8 Jun 2010 10:41:28 -0700 (PDT) From: Linus Torvalds To: Dave Chinner cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: Re: [PATCH 0/6] writeback: tracing and fixes V4 Subject: Re: [PATCH 0/6] writeback: tracing and fixes V4 In-Reply-To: <1275957487-23633-1-git-send-email-david@fromorbit.com> Message-ID: References: <1275957487-23633-1-git-send-email-david@fromorbit.com> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-MIMEDefang-Filter: lf$Revision: 1.188 $ X-Scanned-By: MIMEDefang 2.63 on 140.211.169.13 X-Barracuda-Connect: smtp1.linux-foundation.org[140.211.169.13] X-Barracuda-Start-Time: 1276019084 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31987 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, 8 Jun 2010, Dave Chinner wrote: > > Can you please consider this patch series for 2.6.35? Yeah, no. See the several lkml discussions and the -rc2 announcement about how I do _not_ intend to merge anything even remotely "new code" this time around. So purely regression fixes and serious bugfixes (oopses/security issues). Kubys From akpm@linux-foundation.org Tue Jun 8 12:47:46 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58HlksN225031 for ; Tue, 8 Jun 2010 12:47:46 -0500 X-ASG-Debug-ID: 1276019594-712d03090000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp1.linux-foundation.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id E114B13120EA for ; Tue, 8 Jun 2010 10:53:14 -0700 (PDT) Received: from smtp1.linux-foundation.org (smtp1.linux-foundation.org [140.211.169.13]) by cuda.sgi.com with ESMTP id SXnBdRdtXyL109Rm for ; Tue, 08 Jun 2010 10:53:14 -0700 (PDT) Received: from imap1.linux-foundation.org (imap1.linux-foundation.org [140.211.169.55]) by smtp1.linux-foundation.org (8.14.2/8.13.5/Debian-3ubuntu1.1) with ESMTP id o58HoEZg029366 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 8 Jun 2010 10:50:16 -0700 Received: from localhost (localhost [127.0.0.1]) by imap1.linux-foundation.org (8.13.5.20060308/8.13.5/Debian-3ubuntu1.1) with SMTP id o58HoE6S015815; Tue, 8 Jun 2010 10:50:14 -0700 Date: Tue, 8 Jun 2010 10:50:18 -0700 From: Andrew Morton To: Linus Torvalds Cc: Dave Chinner , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 0/6] writeback: tracing and fixes V4 Subject: Re: [PATCH 0/6] writeback: tracing and fixes V4 Message-Id: <20100608105018.f7f82a1e.akpm@linux-foundation.org> In-Reply-To: References: <1275957487-23633-1-git-send-email-david@fromorbit.com> X-Mailer: Sylpheed 2.7.1 (GTK+ 2.18.9; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-MIMEDefang-Filter: lf$Revision: 1.188 $ X-Scanned-By: MIMEDefang 2.63 on 140.211.169.13 X-Barracuda-Connect: smtp1.linux-foundation.org[140.211.169.13] X-Barracuda-Start-Time: 1276019594 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.01 X-Barracuda-Spam-Status: No, SCORE=-2.01 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_SC0_SA_TO_FROM_DOMAIN_MATCH X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.31987 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 BSF_SC0_SA_TO_FROM_DOMAIN_MATCH Sender Domain Matches Recipient Domain X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, 8 Jun 2010 10:41:28 -0700 (PDT) Linus Torvalds wrote: > > > On Tue, 8 Jun 2010, Dave Chinner wrote: > > > > Can you please consider this patch series for 2.6.35? > > Yeah, no. See the several lkml discussions and the -rc2 announcement about > how I do _not_ intend to merge anything even remotely "new code" this time > around. > > So purely regression fixes and serious bugfixes (oopses/security issues). Linus would have merged it. > Kubys But his evil twin got ahold of the keyboard. From BATV+c853dde7a93cc9944cf2+2480+infradead.org+hch@bombadil.srs.infradead.org Tue Jun 8 14:56:45 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58Jugbi230005 for ; Tue, 8 Jun 2010 14:56:45 -0500 X-ASG-Debug-ID: 1276027154-21ae00fb0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 0272D14A978E for ; Tue, 8 Jun 2010 12:59:14 -0700 (PDT) Received: from bombadil.infradead.org ([18.85.46.34]) by cuda.sgi.com with ESMTP id BhkDNAabYWUU5XH0 for ; Tue, 08 Jun 2010 12:59:14 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OM4x1-00012z-Ir for xfs@oss.sgi.com; Tue, 08 Jun 2010 19:59:08 +0000 Date: Tue, 8 Jun 2010 15:59:07 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH] xfs: avoid synchronous transaction in xfs_fs_write_inode Subject: [PATCH] xfs: avoid synchronous transaction in xfs_fs_write_inode Message-ID: <20100608195905.GA577@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[18.85.46.34] X-Barracuda-Start-Time: 1276027155 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean We already rely on the fact that the sync code will cause a synchronous log force later on (currently via xfs_fs_sync_fs -> xfs_quiesce_data -> xfs_sync_data), so no need to do this here. This allows us to avoid a lot of synchronous log forces during sync, which pays of especially with delayed logging enabled. Some compilebench numbers that show this: xfs (delayed logging, 256k logbufs) =================================== intial create 25.94 MB/s 25.75 MB/s 25.64 MB/s create 8.54 MB/s 9.12 MB/s 9.15 MB/s patch 2.47 MB/s 2.47 MB/s 3.17 MB/s compile 29.65 MB/s 30.51 MB/s 27.33 MB/s clean 90.92 MB/s 98.83 MB/s 128.87 MB/s read tree 11.90 MB/s 11.84 MB/s 8.56 MB/s read compiled 28.75 MB/s 29.96 MB/s 24.25 MB/s delete tree 8.39 seconds 8.12 seconds 8.46 seconds delete compiled 8.35 seconds 8.44 seconds 5.11 seconds stat tree 6.03 seconds 5.59 seconds 5.19 seconds stat compiled tree 9.00 seconds 9.52 seconds 8.49 seconds xfs + write_inode log_force removal =================================== intial create 25.87 MB/s 25.76 MB/s 25.87 MB/s create 15.18 MB/s 14.80 MB/s 14.94 MB/s patch 3.13 MB/s 3.14 MB/s 3.11 MB/s compile 36.74 MB/s 37.17 MB/s 36.84 MB/s clean 226.02 MB/s 222.58 MB/s 217.94 MB/s read tree 15.14 MB/s 15.02 MB/s 15.14 MB/s read compiled tree 29.30 MB/s 29.31 MB/s 29.32 MB/s delete tree 6.22 seconds 6.14 seconds 6.15 seconds delete compiled tree 5.75 seconds 5.92 seconds 5.81 seconds stat tree 4.60 seconds 4.51 seconds 4.56 seconds stat compiled tree 4.07 seconds 3.87 seconds 3.96 seconds Signed-off-by: Christoph Hellwig Index: xfs/fs/xfs/linux-2.6/xfs_super.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_super.c 2010-06-08 21:14:40.509003917 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_super.c 2010-06-08 21:16:41.078005872 +0200 @@ -1025,7 +1025,6 @@ xfs_log_inode( */ xfs_trans_ijoin(tp, ip); xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); - xfs_trans_set_sync(tp); error = xfs_trans_commit(tp, 0); xfs_ilock_demote(ip, XFS_ILOCK_EXCL); @@ -1052,6 +1051,12 @@ xfs_fs_write_inode( * log and the fsync transactions we reduce the IOs we have * to do here from two (log and inode) to just the log. * + * We do not even have to use a log force / synchronous + * transaction here as the sync code will cause do + * synchronous log force later durinc the sync process. + * With delayed logging that means we reduce the amount + * of required I/O requests dramatically. + * * Note: We still need to do a delwri write of the inode after * this to flush it to the backing buffer so that bulkstat * works properly if this is the first time the inode has been From sandeen@sandeen.net Tue Jun 8 15:01:09 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,J_CHICKENPOX_43, J_CHICKENPOX_66,J_CHICKENPOX_74 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58K19hE230198 for ; Tue, 8 Jun 2010 15:01:09 -0500 X-ASG-Debug-ID: 1276027420-21ad01150000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mx1.redhat.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 6673F1E0A4A8 for ; Tue, 8 Jun 2010 13:03:40 -0700 (PDT) Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 28n8EbUTE0SWE8zj for ; Tue, 08 Jun 2010 13:03:40 -0700 (PDT) X-ASG-Whitelist: Barracuda Reputation Received: from int-mx03.intmail.prod.int.phx2.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.16]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o58K3dmY003059 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Tue, 8 Jun 2010 16:03:40 -0400 Received: from neon.msp.redhat.com (neon.msp.redhat.com [10.15.80.10]) by int-mx03.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o58K3dDn017907 for ; Tue, 8 Jun 2010 16:03:39 -0400 Message-ID: <4C0EA21B.8020703@sandeen.net> Date: Tue, 08 Jun 2010 15:03:39 -0500 From: Eric Sandeen User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.8) Gecko/20100301 Fedora/3.0.3-1.fc11 Lightning/1.0b2pre Thunderbird/3.0.3 MIME-Version: 1.0 To: xfs mailing list X-ASG-Orig-Subj: [PATCH] xfstests: resolve symlinked devices to real paths Subject: [PATCH] xfstests: resolve symlinked devices to real paths Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.67 on 10.5.11.16 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1276027421 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean If you try running xfstests on lvm volumes which are symlinks, it'll fail to run several tests because our _require_scratch framework ultimately uses lstat not stat, and does not think the lvm device (which is usually a symlink to a dm-X device) is a block device. Sigh. Last try at this - just resolve any symlinked devicenames into their realpath(3) in common.config. This actually seems to work. Signed-off-by: Eric Sandeen --- diff --git a/common.config b/common.config index 926846b..e5b2483 100644 --- a/common.config +++ b/common.config @@ -208,6 +208,15 @@ else known_hosts fi +# Scripts just don't deal well with symlinked devices +if [ -L $TEST_DEV ]; then + TEST_DEV=`src/realpath $TEST_DEV` +fi + +if [ -L $SCRATCH_DEV ]; then + SCRATCH_DEV=`src/realpath $SCRATCH_DEV` +fi + echo $TEST_DEV | grep -q ":" > /dev/null 2>&1 if [ ! -b "$TEST_DEV" -a "$?" != "0" ]; then echo "common.config: Error: \$TEST_DEV ($TEST_DEV) is not a block device or a NFS filesystem" diff --git a/src/Makefile b/src/Makefile index 976133d..2399853 100644 --- a/src/Makefile +++ b/src/Makefile @@ -10,7 +10,8 @@ TARGETS = dirstress fill fill2 getpagesize holes lstat64 \ mmapcat append_reader append_writer dirperf metaperf \ devzero feature alloc fault fstest t_access_root \ godown resvtest writemod makeextents itrash rename \ - multi_open_unlink dmiperf unwritten_sync genhashnames t_holes + multi_open_unlink dmiperf unwritten_sync genhashnames t_holes \ + realpath LINUX_TARGETS = xfsctl bstat t_mtab getdevicesize preallo_rw_pattern_reader \ preallo_rw_pattern_writer ftrunc trunc fs_perms testx looptest \ diff --git a/src/realpath.c b/src/realpath.c new file mode 100644 index 0000000..997b1aa --- /dev/null +++ b/src/realpath.c @@ -0,0 +1,32 @@ +#include +#include +#include +#include + +/* + * Simple wrapper around realpath(3) to get absolute path + * to a device name; many xfstests scripts don't cope well + * with symlinked devices due to differences in /proc/mounts, + * /etc/mtab, mount output, etc. + */ + +int main(int argc, char *argv[]) +{ + char path[PATH_MAX]; + char resolved_path[PATH_MAX]; + + if (argc != 2) { + printf("Usage: %s \n", argv[0]); + return 1; + } + + strncpy(path, argv[1], PATH_MAX-1); + + if (!realpath(path, resolved_path)) { + perror("Failed to resolve path for %s"); + return 1; + } + + printf("%s\n", resolved_path); + return 0; +} From mjt@tls.msk.ru Tue Jun 8 15:31:32 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_32 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58KVVCK231406 for ; Tue, 8 Jun 2010 15:31:31 -0500 X-ASG-Debug-ID: 1276029419-385f03b20000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from isrv.corpit.ru (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 25A9010C987A for ; Tue, 8 Jun 2010 13:36:59 -0700 (PDT) Received: from isrv.corpit.ru (isrv.corpit.ru [81.13.33.159]) by cuda.sgi.com with ESMTP id lGCYKdLnZLdSm9gE for ; Tue, 08 Jun 2010 13:36:59 -0700 (PDT) X-ASG-Whitelist: Barracuda Reputation Received: from [192.168.88.2] (mjt.vpn.tls.msk.ru [192.168.10.88]) by isrv.corpit.ru (Postfix) with ESMTP id C93FD4123B; Wed, 9 Jun 2010 00:34:00 +0400 (MSD) (envelope-from mjt@tls.msk.ru) Message-ID: <4C0EA938.9000104@msgid.tls.msk.ru> Date: Wed, 09 Jun 2010 00:34:00 +0400 From: Michael Tokarev Organization: Telecom Service, JSC User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.1.9) Gecko/20100411 Icedove/3.0.4 MIME-Version: 1.0 To: Dave Chinner CC: Linux-kernel , xfs@oss.sgi.com X-ASG-Orig-Subj: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] Subject: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] References: <4C0E13A7.20402@msgid.tls.msk.ru> <20100608122919.GC7869@dastard> In-Reply-To: <20100608122919.GC7869@dastard> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: isrv.corpit.ru[81.13.33.159] X-Barracuda-Start-Time: 1276029421 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean 08.06.2010 16:29, Dave Chinner wrote: > On Tue, Jun 08, 2010 at 01:55:51PM +0400, Michael Tokarev wrote: >> Hello. >> >> I've got a.. difficult issue here, and am asking if anyone else >> has some expirence or information about it. >> >> Production environment (database). Machine with an Adaptec >> RAID SCSI controller, 6 drives in raid10 array, XFS filesystem >> and Oracle database on top of it (with - hopefully - proper >> sunit/swidth). >> >> Upgrading kernel from 2.6.27 to 2.6.32, and users starts screaming >> about very bad performance. Iostat reports increased I/O latencies, >> I/O time increases from ~5ms to ~30ms. Switching back to 2.6.27, >> and everything is back to normal (or, rather, usual). >> >> I tried testing I/O with a sample program which performs direct random >> I/O on a given device, and all speeds are actually better in .32 >> compared with .27, except of random concurrent r+w test, where .27 >> gives a bit more chances to reads than .32. Looking at the synthetic >> tests I'd expect .32 to be faster, but apparently it is not. >> >> This is only one machine here which is still running 2.6.27, all the >> rest are upgraded to 2.6.32, and I see good performance of .32 there. >> But this is also the only machine with hardware raid controller, which >> is onboard and hence not easy to get rid of, so I'm sorta forced to >> use it (I prefer software raid solution because of numerous reasons). >> >> One possible cause of this that comes to mind is block device write >> barriers. But I can't find when they're actually implemented. >> >> The most problematic issue here is that this is only one machine that >> behaves like this, and it is a production server, so I've very little >> chances to experiment with it. >> >> So before the next try, I'd love to have some suggestions about what >> to look for. In particular, I think it's worth the effort to look >> at write barriers, but again, I don't know how to check if they're >> actually being used. >> >> Anyone have suggestions for me to collect and to look at? > > http://xfs.org/index.php/XFS_FAQ#Q._Should_barriers_be_enabled_with_storage_which_has_a_persistent_write_cache.3F Yes, I've seen this. We use xfs for quite long time. The on-board controller does not have battery unit, so it should be no different than a software raid array or single drive. But I traced the issue to a particular workload -- see $subject. Simple test doing random reads or writes of 4k blocks in a 1Gb file located on an xfs filesystem, Mb/sec: sync direct read write write 2.6.27 xfs 1.17 3.69 3.80 2.6.32 xfs 1.26 0.52 5.10 ^^^^ 2.6.32 ext3 1.19 4.91 5.02 Note the 10 times difference between O_SYNC and O_DIRECT writes in 2.6.32. This is, well, huge difference, and this is where the original slowdown comes from, apparently. In 2.6.27 both sync and direct writes are on-par with each other, in .32 direct write has improved, but sync write is just pathetic now. And compared with previous o_sync, that's about 6 times the difference which I reported previously. We're running a legacy oracle application here, on Oracle8, which does not support O_DIRECT and uses O_SYNC. So it gets hit by this issue quite badly - no doubt users start screaming after switching to .32. I also tested ext3fs, for comparison. This one does not have that problem and works just fine in both .32 and .27. I also tried disabling barriers for xfs, which made no difference whatsoever. So it's O_SYNC writes on XFS which are problematic. Together with hw raid apparently, since no one noticed when I switched other machines (with sw raid) from .27 to .32. I'll _try_ to find when the problem first appeared, but it is not that simple since I've only very small time window for testing. Thanks! /mjt From SRS0+R53I+8+fromorbit.com=david@internode.on.net Tue Jun 8 17:44:23 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58MiMUv240211 for ; Tue, 8 Jun 2010 17:44:23 -0500 X-ASG-Debug-ID: 1276037389-714803810000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id ED3DD10D05BE for ; Tue, 8 Jun 2010 15:49:50 -0700 (PDT) Received: from mail.internode.on.net (bld-mail16.adl2.internode.on.net [150.101.137.101]) by cuda.sgi.com with ESMTP id 4j4FVUDeI7ef4qyP for ; Tue, 08 Jun 2010 15:49:50 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27200151-1927428 for multiple; Wed, 09 Jun 2010 08:16:17 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OM7Yl-0003Ii-CZ; Wed, 09 Jun 2010 08:46:15 +1000 Date: Wed, 9 Jun 2010 08:46:15 +1000 From: Dave Chinner To: Linus Torvalds Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: Re: [PATCH 0/6] writeback: tracing and fixes V4 Subject: Re: [PATCH 0/6] writeback: tracing and fixes V4 Message-ID: <20100608224615.GE7869@dastard> References: <1275957487-23633-1-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail16.adl2.internode.on.net[150.101.137.101] X-Barracuda-Start-Time: 1276037391 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32004 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 08, 2010 at 10:41:28AM -0700, Linus Torvalds wrote: > > > On Tue, 8 Jun 2010, Dave Chinner wrote: > > > > Can you please consider this patch series for 2.6.35? > > Yeah, no. See the several lkml discussions and the -rc2 announcement about > how I do _not_ intend to merge anything even remotely "new code" this time > around. > > So purely regression fixes and serious bugfixes (oopses/security issues). No worries, I'll re-order the series and send you just the bug fixes later this morning. Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0+YvFy+8+fromorbit.com=david@internode.on.net Tue Jun 8 18:16:18 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_22 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58NGIbu242268 for ; Tue, 8 Jun 2010 18:16:18 -0500 X-ASG-Debug-ID: 1276039127-67c401820000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id DB8DC14AB0C7 for ; Tue, 8 Jun 2010 16:18:48 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id xYeLYXP7uY9f0oyo for ; Tue, 08 Jun 2010 16:18:48 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27354871-1927428 for multiple; Wed, 09 Jun 2010 08:48:47 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OM84D-0003Kd-OU; Wed, 09 Jun 2010 09:18:45 +1000 Date: Wed, 9 Jun 2010 09:18:45 +1000 From: Dave Chinner To: Michael Tokarev Cc: Linux-kernel , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] Subject: Re: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] Message-ID: <20100608231845.GG7869@dastard> References: <4C0E13A7.20402@msgid.tls.msk.ru> <20100608122919.GC7869@dastard> <4C0EA938.9000104@msgid.tls.msk.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C0EA938.9000104@msgid.tls.msk.ru> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1276039129 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32005 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed, Jun 09, 2010 at 12:34:00AM +0400, Michael Tokarev wrote: > 08.06.2010 16:29, Dave Chinner wrote: > >On Tue, Jun 08, 2010 at 01:55:51PM +0400, Michael Tokarev wrote: > >>Hello. > >> > >>I've got a.. difficult issue here, and am asking if anyone else > >>has some expirence or information about it. > >> > >>Production environment (database). Machine with an Adaptec > >>RAID SCSI controller, 6 drives in raid10 array, XFS filesystem > >>and Oracle database on top of it (with - hopefully - proper > >>sunit/swidth). > >> > >>Upgrading kernel from 2.6.27 to 2.6.32, and users starts screaming > >>about very bad performance. Iostat reports increased I/O latencies, > >>I/O time increases from ~5ms to ~30ms. Switching back to 2.6.27, > >>and everything is back to normal (or, rather, usual). .... > >>The most problematic issue here is that this is only one machine that > >>behaves like this, and it is a production server, so I've very little > >>chances to experiment with it. > >> > >>So before the next try, I'd love to have some suggestions about what > >>to look for. In particular, I think it's worth the effort to look > >>at write barriers, but again, I don't know how to check if they're > >>actually being used. > >> > >>Anyone have suggestions for me to collect and to look at? > > > >http://xfs.org/index.php/XFS_FAQ#Q._Should_barriers_be_enabled_with_storage_which_has_a_persistent_write_cache.3F > > Yes, I've seen this. We use xfs for quite long time. The on-board > controller does not have battery unit, so it should be no different > than a software raid array or single drive. > > But I traced the issue to a particular workload -- see $subject. > > Simple test doing random reads or writes of 4k blocks in a 1Gb > file located on an xfs filesystem, Mb/sec: > > sync direct > read write write > 2.6.27 xfs 1.17 3.69 3.80 > 2.6.32 xfs 1.26 0.52 5.10 > ^^^^ > 2.6.32 ext3 1.19 4.91 5.02 > > Note the 10 times difference between O_SYNC and O_DIRECT writes > in 2.6.32. This is, well, huge difference, and this is where > the original slowdown comes from, apparently. Are you running on the raw block device, or on top of LVM/DM/MD to split up the space on the RAID drive? DM+MD have grown barrier support since 2.6.27, so it may be that barriers are now being passed down to the raid hardware on 2.6.32 and they never were on 2.6.27. Can you paste the output of dmesg when the XFS filesystem in question is mounted on both 2.6.27 and 2.6.32 so we can see if there is a difference in the use of barriers? Also, remember that O_DIRECT does not imply O_SYNC. O_DIRECT writes only write data, while O_SYNC will also write metadata and/or the log. Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0+GXiS+9+fromorbit.com=dave@internode.on.net Tue Jun 8 19:35:37 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o590ZbWS245424 for ; Tue, 8 Jun 2010 19:35:37 -0500 X-ASG-Debug-ID: 1276043887-50be00a10000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 211521B1B358 for ; Tue, 8 Jun 2010 17:38:08 -0700 (PDT) Received: from mail.internode.on.net (bld-mail14.adl6.internode.on.net [150.101.137.99]) by cuda.sgi.com with ESMTP id lb99TRPvkhDKtxoi for ; Tue, 08 Jun 2010 17:38:08 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27541070-1927428 for multiple; Wed, 09 Jun 2010 10:07:30 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OM9IO-0003Od-Eh; Wed, 09 Jun 2010 10:37:28 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OM9IK-0000WA-8t; Wed, 09 Jun 2010 10:37:24 +1000 From: Dave Chinner To: torvalds@linux-foundation.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: [PATCH 0/3] writeback: bug fixes for 2.6.35 Subject: [PATCH 0/3] writeback: bug fixes for 2.6.35 Date: Wed, 9 Jun 2010 10:37:17 +1000 Message-Id: <1276043840-1946-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 X-Barracuda-Connect: bld-mail14.adl6.internode.on.net[150.101.137.99] X-Barracuda-Start-Time: 1276043889 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0001 1.0000 -2.0201 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32011 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hi Linus, This is a resend of my current writeback bug fixes without the preceding tracing patches. Please consider these for 2.6.35 as they are fixes for regressions introduced in previous kernel releases. Cheers, Dave. From SRS0+GGhX+9+fromorbit.com=dave@internode.on.net Tue Jun 8 19:35:37 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o590Zae0245422 for ; Tue, 8 Jun 2010 19:35:37 -0500 X-ASG-Debug-ID: 1276043886-50bb00970000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 7E68014AB3B6 for ; Tue, 8 Jun 2010 17:38:07 -0700 (PDT) Received: from mail.internode.on.net (bld-mail17.adl2.internode.on.net [150.101.137.102]) by cuda.sgi.com with ESMTP id 7TxG4z778tCAfLos for ; Tue, 08 Jun 2010 17:38:07 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27085731-1927428 for multiple; Wed, 09 Jun 2010 10:07:30 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OM9IO-0003Oe-IC; Wed, 09 Jun 2010 10:37:28 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OM9IK-0000WE-Cd; Wed, 09 Jun 2010 10:37:24 +1000 From: Dave Chinner To: torvalds@linux-foundation.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: [PATCH 2/3] xfs: remove nr_to_write writeback windup. Subject: [PATCH 2/3] xfs: remove nr_to_write writeback windup. Date: Wed, 9 Jun 2010 10:37:19 +1000 Message-Id: <1276043840-1946-3-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1276043840-1946-1-git-send-email-david@fromorbit.com> References: <1276043840-1946-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail17.adl2.internode.on.net[150.101.137.102] X-Barracuda-Start-Time: 1276043888 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32011 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner Now that the background flush code has been fixed, we shouldn't need to silently multiply the wbc->nr_to_write to get good writeback. Remove that code. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig --- fs/xfs/linux-2.6/xfs_aops.c | 8 -------- 1 files changed, 0 insertions(+), 8 deletions(-) diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c index a0fa3bf..34640d6 100644 --- a/fs/xfs/linux-2.6/xfs_aops.c +++ b/fs/xfs/linux-2.6/xfs_aops.c @@ -1381,14 +1381,6 @@ xfs_vm_writepage( if (!page_has_buffers(page)) create_empty_buffers(page, 1 << inode->i_blkbits, 0); - - /* - * VM calculation for nr_to_write seems off. Bump it way - * up, this gets simple streaming writes zippy again. - * To be reviewed again after Jens' writeback changes. - */ - wbc->nr_to_write *= 4; - /* * Convert delayed allocate, unwritten or unmapped space * to real space and flush out to disk. -- 1.7.1 From SRS0+JRSS+9+fromorbit.com=dave@internode.on.net Tue Jun 8 19:35:44 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.1 required=5.0 tests=BAYES_00,SUBJ_ATTENTION autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o590Zig6245448 for ; Tue, 8 Jun 2010 19:35:44 -0500 X-ASG-Debug-ID: 1276044072-07b1016b0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 3574410D0BA4 for ; Tue, 8 Jun 2010 17:41:12 -0700 (PDT) Received: from mail.internode.on.net (bld-mail19.adl2.internode.on.net [150.101.137.104]) by cuda.sgi.com with ESMTP id u6KUmoAccAYU6Ap3 for ; Tue, 08 Jun 2010 17:41:12 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27124624-1927428 for multiple; Wed, 09 Jun 2010 10:07:39 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OM9IY-0003Om-FJ; Wed, 09 Jun 2010 10:37:38 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OM9IK-0000WC-Al; Wed, 09 Jun 2010 10:37:24 +1000 From: Dave Chinner To: torvalds@linux-foundation.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: [PATCH 1/3] writeback: pay attention to wbc->nr_to_write in write_cache_pages Subject: [PATCH 1/3] writeback: pay attention to wbc->nr_to_write in write_cache_pages Date: Wed, 9 Jun 2010 10:37:18 +1000 Message-Id: <1276043840-1946-2-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1276043840-1946-1-git-send-email-david@fromorbit.com> References: <1276043840-1946-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail19.adl2.internode.on.net[150.101.137.104] X-Barracuda-Start-Time: 1276044074 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32012 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner If a filesystem writes more than one page in ->writepage, write_cache_pages fails to notice this and continues to attempt writeback when wbc->nr_to_write has gone negative - this trace was captured from XFS: wbc_writeback_start: towrt=1024 wbc_writepage: towrt=1024 wbc_writepage: towrt=0 wbc_writepage: towrt=-1 wbc_writepage: towrt=-5 wbc_writepage: towrt=-21 wbc_writepage: towrt=-85 This has adverse effects on filesystem writeback behaviour. write_cache_pages() needs to terminate after a certain number of pages are written, not after a certain number of calls to ->writepage are made. This is a regression introduced by 17bc6c30cf6bfffd816bdc53682dd46fc34a2cf4 ("vfs: Add no_nrwrite_index_update writeback control flag"), but cannot be reverted directly due to subsequent bug fixes that have gone in on top of it. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig --- include/linux/writeback.h | 9 --------- include/trace/events/ext4.h | 5 +---- mm/page-writeback.c | 15 +++++---------- 3 files changed, 6 insertions(+), 23 deletions(-) diff --git a/include/linux/writeback.h b/include/linux/writeback.h index f641346..d63ef8f 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -56,15 +56,6 @@ struct writeback_control { unsigned for_reclaim:1; /* Invoked from the page allocator */ unsigned range_cyclic:1; /* range_start is cyclic */ unsigned more_io:1; /* more io to be dispatched */ - /* - * write_cache_pages() won't update wbc->nr_to_write and - * mapping->writeback_index if no_nrwrite_index_update - * is set. write_cache_pages() may write more than we - * requested and we want to make sure nr_to_write and - * writeback_index are updated in a consistent manner - * so we use a single control to update them - */ - unsigned no_nrwrite_index_update:1; }; /* diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index f5b1ba9..f3865c7 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -306,7 +306,6 @@ TRACE_EVENT(ext4_da_writepages_result, __field( int, pages_written ) __field( long, pages_skipped ) __field( char, more_io ) - __field( char, no_nrwrite_index_update ) __field( pgoff_t, writeback_index ) ), @@ -317,16 +316,14 @@ TRACE_EVENT(ext4_da_writepages_result, __entry->pages_written = pages_written; __entry->pages_skipped = wbc->pages_skipped; __entry->more_io = wbc->more_io; - __entry->no_nrwrite_index_update = wbc->no_nrwrite_index_update; __entry->writeback_index = inode->i_mapping->writeback_index; ), - TP_printk("dev %s ino %lu ret %d pages_written %d pages_skipped %ld more_io %d no_nrwrite_index_update %d writeback_index %lu", + TP_printk("dev %s ino %lu ret %d pages_written %d pages_skipped %ld more_io %d writeback_index %lu", jbd2_dev_to_name(__entry->dev), (unsigned long) __entry->ino, __entry->ret, __entry->pages_written, __entry->pages_skipped, __entry->more_io, - __entry->no_nrwrite_index_update, (unsigned long) __entry->writeback_index) ); diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 5fa63bd..b3dbb80 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -835,7 +835,6 @@ int write_cache_pages(struct address_space *mapping, pgoff_t done_index; int cycled; int range_whole = 0; - long nr_to_write = wbc->nr_to_write; pagevec_init(&pvec, 0); if (wbc->range_cyclic) { @@ -935,11 +934,10 @@ continue_unlock: done = 1; break; } - } + } - if (nr_to_write > 0) { - nr_to_write--; - if (nr_to_write == 0 && + if (wbc->nr_to_write > 0) { + if (--wbc->nr_to_write == 0 && wbc->sync_mode == WB_SYNC_NONE) { /* * We stop writing back only if we are @@ -970,11 +968,8 @@ continue_unlock: end = writeback_index - 1; goto retry; } - if (!wbc->no_nrwrite_index_update) { - if (wbc->range_cyclic || (range_whole && nr_to_write > 0)) - mapping->writeback_index = done_index; - wbc->nr_to_write = nr_to_write; - } + if (wbc->range_cyclic || (range_whole && wbc->nr_to_write > 0)) + mapping->writeback_index = done_index; return ret; } -- 1.7.1 From SRS0+/IkJ+9+fromorbit.com=dave@internode.on.net Tue Jun 8 19:35:49 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o590ZnnX245471 for ; Tue, 8 Jun 2010 19:35:49 -0500 X-ASG-Debug-ID: 1276043899-1eac02480000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 5FCF81B1B359 for ; Tue, 8 Jun 2010 17:38:20 -0700 (PDT) Received: from mail.internode.on.net (bld-mail12.adl6.internode.on.net [150.101.137.97]) by cuda.sgi.com with ESMTP id ptyXkoli3CmBZ7SW for ; Tue, 08 Jun 2010 17:38:20 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27268071-1927428 for multiple; Wed, 09 Jun 2010 10:07:40 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OM9IY-0003On-Ir; Wed, 09 Jun 2010 10:37:38 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OM9IK-0000WG-FU; Wed, 09 Jun 2010 10:37:24 +1000 From: Dave Chinner To: torvalds@linux-foundation.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, akpm@linux-foundation.org X-ASG-Orig-Subj: [PATCH 3/3] writeback: limit write_cache_pages integrity scanning to current EOF Subject: [PATCH 3/3] writeback: limit write_cache_pages integrity scanning to current EOF Date: Wed, 9 Jun 2010 10:37:20 +1000 Message-Id: <1276043840-1946-4-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1276043840-1946-1-git-send-email-david@fromorbit.com> References: <1276043840-1946-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail12.adl6.internode.on.net[150.101.137.97] X-Barracuda-Start-Time: 1276043901 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32011 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner sync can currently take a really long time if a concurrent writer is extending a file. The problem is that the dirty pages on the address space grow in the same direction as write_cache_pages scans, so if the writer keeps ahead of writeback, the writeback will not terminate until the writer stops adding dirty pages. For a data integrity sync, we only need to write the pages dirty at the time we start the writeback, so we can stop scanning once we get to the page that was at the end of the file at the time the scan started. This will prevent operations like copying a large file preventing sync from completing as it will not write back pages that were dirtied after the sync was started. This does not impact the existing integrity guarantees, as any dirty page (old or new) within the EOF range at the start of the scan will still be captured. This patch will not prevent sync from blocking on large writes into holes. That requires more complex intervention while this patch only addresses the common append-case of this sync holdoff. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig --- mm/page-writeback.c | 15 +++++++++++++++ 1 files changed, 15 insertions(+), 0 deletions(-) diff --git a/mm/page-writeback.c b/mm/page-writeback.c index b3dbb80..bbd396a 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -851,7 +851,22 @@ int write_cache_pages(struct address_space *mapping, if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX) range_whole = 1; cycled = 1; /* ignore range_cyclic tests */ + + /* + * If this is a data integrity sync, cap the writeback to the + * current end of file. Any extension to the file that occurs + * after this is a new write and we don't need to write those + * pages out to fulfil our data integrity requirements. If we + * try to write them out, we can get stuck in this scan until + * the concurrent writer stops adding dirty pages and extending + * EOF. + */ + if (wbc->sync_mode == WB_SYNC_ALL && + wbc->range_end == LLONG_MAX) { + end = i_size_read(mapping->host) >> PAGE_CACHE_SHIFT; + } } + retry: done_index = index; while (!done && (index <= end)) { -- 1.7.1 From sandeen@sandeen.net Tue Jun 8 22:25:44 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o593Phs7252009 for ; Tue, 8 Jun 2010 22:25:43 -0500 X-ASG-Debug-ID: 1276054271-5ef001d80000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.sandeen.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 15C5396CFFD for ; Tue, 8 Jun 2010 20:31:12 -0700 (PDT) Received: from mail.sandeen.net (64-131-60-146.usfamily.net [64.131.60.146]) by cuda.sgi.com with ESMTP id u5c9O5RUnwp8tnC5 for ; Tue, 08 Jun 2010 20:31:12 -0700 (PDT) Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sandeen.net (Postfix) with ESMTP id 3DAD54968903 for ; Tue, 8 Jun 2010 22:28:12 -0500 (CDT) Message-ID: <4C0F0A4C.7050600@sandeen.net> Date: Tue, 08 Jun 2010 22:28:12 -0500 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.24 (Macintosh/20100228) MIME-Version: 1.0 To: xfs-oss X-ASG-Orig-Subj: [PATCH] xfstests 217: remove file in between mkfs's Subject: [PATCH] xfstests 217: remove file in between mkfs's Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: 64-131-60-146.usfamily.net[64.131.60.146] X-Barracuda-Start-Time: 1276054273 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32021 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean 217 requires a 2G scratch: _require_fs_space $SCRATCH_MNT 2202000 but as we mkfs different sizes, we actually are filling in the sparse loopback more and more, and 3.8G isn't enough to contain it. If we remove & recreate the file between mkfs's it doesn't take so much space ... I don't think it adds significantly to test time. Signed-off-by: Eric Sandeen --- diff --git a/217 b/217 index 19540ad..ed86a51 100755 --- a/217 +++ b/217 @@ -60,6 +60,9 @@ LOOP_MNT=$SCRATCH_MNT/test_fs_dir _do_mkfs() { for i in $*; do + # make large holey file + rm -f $LOOP_DEV + $XFS_IO_PROG -f -c "truncate 16383g" $LOOP_DEV echo -n "fssize=${i}g " $MKFS_XFS_PROG -f -b size=4096 -l version=2 \ -d name=$LOOP_DEV,size=${i}g |grep log From mjt@tls.msk.ru Wed Jun 9 01:41:07 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_22 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o596f7ES261617 for ; Wed, 9 Jun 2010 01:41:07 -0500 X-ASG-Debug-ID: 1276065818-077d02b90000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from isrv.corpit.ru (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id E336C3A93D8 for ; Tue, 8 Jun 2010 23:43:38 -0700 (PDT) Received: from isrv.corpit.ru (isrv.corpit.ru [81.13.33.159]) by cuda.sgi.com with ESMTP id bkZ8wf0DQGUIK3Qp for ; Tue, 08 Jun 2010 23:43:38 -0700 (PDT) X-ASG-Whitelist: Barracuda Reputation Received: from [192.168.88.2] (mjt.vpn.tls.msk.ru [192.168.10.88]) by isrv.corpit.ru (Postfix) with ESMTP id 6A8CE41377; Wed, 9 Jun 2010 10:43:37 +0400 (MSD) (envelope-from mjt@tls.msk.ru) Message-ID: <4C0F3819.4000409@msgid.tls.msk.ru> Date: Wed, 09 Jun 2010 10:43:37 +0400 From: Michael Tokarev Organization: Telecom Service, JSC User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.1.9) Gecko/20100411 Icedove/3.0.4 MIME-Version: 1.0 To: Dave Chinner CC: Linux-kernel , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] Subject: Re: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] References: <4C0E13A7.20402@msgid.tls.msk.ru> <20100608122919.GC7869@dastard> <4C0EA938.9000104@msgid.tls.msk.ru> <20100608231845.GG7869@dastard> In-Reply-To: <20100608231845.GG7869@dastard> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: isrv.corpit.ru[81.13.33.159] X-Barracuda-Start-Time: 1276065819 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean 09.06.2010 03:18, Dave Chinner wrote: > On Wed, Jun 09, 2010 at 12:34:00AM +0400, Michael Tokarev wrote: [] >> Simple test doing random reads or writes of 4k blocks in a 1Gb >> file located on an xfs filesystem, Mb/sec: >> >> sync direct >> read write write >> 2.6.27 xfs 1.17 3.69 3.80 >> 2.6.32 xfs 1.26 0.52 5.10 >> ^^^^ >> 2.6.32 ext3 1.19 4.91 5.02 >> >> Note the 10 times difference between O_SYNC and O_DIRECT writes >> in 2.6.32. This is, well, huge difference, and this is where >> the original slowdown comes from, apparently. > > Are you running on the raw block device, or on top of LVM/DM/MD to > split up the space on the RAID drive? DM+MD have grown barrier > support since 2.6.27, so it may be that barriers are now being > passed down to the raid hardware on 2.6.32 and they never were on > 2.6.27. Can you paste the output of dmesg when the XFS filesystem in That's why I asked how to tell if barriers are actually hitting the device in question. No, this is the only machine where DM/MD is _not_ used. On all other machines we use MD software raid, this machine comes with an onboard raid controller that does not work in JBOD mode so I weren't able to use linux software raid. This is XFS on top of Adaptec RAID card, nothing in-between. Also, as I mentioned in the previous email, remounting with nobarrier makes no difference whatsoever. (Another side note here - I discovered that unknown options are silently ignored in "remount mode" while correctly rejected in "plain mount" mode, -- it looks like a kernel bug actually, but it's entirely different issue). > question is mounted on both 2.6.27 and 2.6.32 so we can see if > there is a difference in the use of barriers? > > Also, remember that O_DIRECT does not imply O_SYNC. O_DIRECT writes > only write data, while O_SYNC will also write metadata and/or the > log. I know this. I also found osyncisosync and osyncisdsync mount options, and when I try to use the latter, kernel tells it's the default and hence deprecated. I don't need metadata updates, but it _looks_ like the system is doing such updates (with barriers or flushes?) anyway even when mounted with -o osyncisdsync it behaves the same: very slow. I also experimented with both O_SYNC|O_DIRECT: it is as slow as without O_DIRECT, i.e. O_SYNC makes whole thing slow regardless of other options. I looked at the dmesg outputs, and there's no relevant differences related to block devices or usage of barriers. For XFS it always mounts like this: SGI XFS with ACLs, security attributes, large block/inode numbers, no debug enabled SGI XFS Quota Management subsystem XFS mounting filesystem sda6 and for the device in question, it is always like Adaptec aacraid driver 1.1-5[2456]-ms aacraid 0000:03:01.0: PCI INT A -> GSI 24 (level, low) -> IRQ 24 AAC0: kernel 5.1-0[8832] Feb 1 2006 AAC0: monitor 5.1-0[8832] AAC0: bios 5.1-0[8832] AAC0: serial 267BE0 AAC0: Non-DASD support enabled. AAC0: 64bit support enabled. AAC0: 64 Bit DAC enabled scsi0 : aacraid scsi 0:0:0:0: Direct-Access Adaptec f0500 V1.0 PQ: 0 ANSI: 2 sd 0:0:0:0: [sda] 286715904 512-byte hardware sectors (146799 MB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Mode Sense: 06 00 10 00 sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FUA sda: sda1 sda2 sda3 < sda5 sda6 > There are tons of other differences, but that is to be expected (like format of CPU topology printing which is changed between .27 and .32). Thanks! /mjt From michael.monnerie@is.it-management.at Wed Jun 9 02:06:33 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5976XLm000817 for ; Wed, 9 Jun 2010 02:06:33 -0500 X-ASG-Debug-ID: 1276067522-1728024a0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 6118B10D1030 for ; Wed, 9 Jun 2010 00:12:03 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id rQUQBKv3q13312zV for ; Wed, 09 Jun 2010 00:12:03 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id 2C68317B for ; Wed, 9 Jun 2010 09:09:02 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id D735783C804 for ; Wed, 9 Jun 2010 09:09:01 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] Subject: Re: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] Date: Wed, 9 Jun 2010 09:09:01 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) References: <4C0E13A7.20402@msgid.tls.msk.ru> <20100608231845.GG7869@dastard> <4C0F3819.4000409@msgid.tls.msk.ru> In-Reply-To: <4C0F3819.4000409@msgid.tls.msk.ru> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart16165749.FA3z0o6Q28"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201006090909.01354@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1276067524 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0209 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32035 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart16165749.FA3z0o6Q28 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable On Mittwoch, 9. Juni 2010 Michael Tokarev wrote: > AAC0: kernel 5.1-0[8832] Feb 1 2006 =20 Damn old piece of controller. Maybe you can try a firmware upgrade? I=20 use Areca controllers, and that helped a lot with them. Maybe something=20 between 2.6.27 and 2.6.32 exploited a firmware problem. =2D-=20 mit freundlichen Gr=FCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=E4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart16165749.FA3z0o6Q28 Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwPPg0ACgkQzhSR9xwSCbSvoQCg4WAEQrZu+8uyVBiYMsopHOTJ frQAnA7LVJ7RIa0Lew8yCZwnhNu1mnFl =uNwe -----END PGP SIGNATURE----- --nextPart16165749.FA3z0o6Q28-- From SRS0+o0I6+9+fromorbit.com=david@internode.on.net Wed Jun 9 02:26:44 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,J_CHICKENPOX_55, J_CHICKENPOX_56 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o597QhrE001612 for ; Wed, 9 Jun 2010 02:26:44 -0500 X-ASG-Debug-ID: 1276068554-2aaa02060000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id CB41D3A987C for ; Wed, 9 Jun 2010 00:29:14 -0700 (PDT) Received: from mail.internode.on.net (bld-mail12.adl6.internode.on.net [150.101.137.97]) by cuda.sgi.com with ESMTP id 1MBqN5PChKWIlpaY for ; Wed, 09 Jun 2010 00:29:14 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27323257-1927428 for multiple; Wed, 09 Jun 2010 16:59:13 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OMFip-0003jp-GB; Wed, 09 Jun 2010 17:29:11 +1000 Date: Wed, 9 Jun 2010 17:29:11 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfs: avoid synchronous transaction in xfs_fs_write_inode Subject: Re: [PATCH] xfs: avoid synchronous transaction in xfs_fs_write_inode Message-ID: <20100609072911.GI7869@dastard> References: <20100608195905.GA577@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100608195905.GA577@infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail12.adl6.internode.on.net[150.101.137.97] X-Barracuda-Start-Time: 1276068555 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32035 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 08, 2010 at 03:59:07PM -0400, Christoph Hellwig wrote: > > We already rely on the fact that the sync code will cause a synchronous > log force later on (currently via xfs_fs_sync_fs -> xfs_quiesce_data -> > xfs_sync_data), so no need to do this here. This allows us to avoid > a lot of synchronous log forces during sync, which pays of especially > with delayed logging enabled. Some compilebench numbers that show > this: > > xfs (delayed logging, 256k logbufs) > =================================== > > intial create 25.94 MB/s 25.75 MB/s 25.64 MB/s > create 8.54 MB/s 9.12 MB/s 9.15 MB/s > patch 2.47 MB/s 2.47 MB/s 3.17 MB/s > compile 29.65 MB/s 30.51 MB/s 27.33 MB/s > clean 90.92 MB/s 98.83 MB/s 128.87 MB/s > read tree 11.90 MB/s 11.84 MB/s 8.56 MB/s > read compiled 28.75 MB/s 29.96 MB/s 24.25 MB/s > delete tree 8.39 seconds 8.12 seconds 8.46 seconds > delete compiled 8.35 seconds 8.44 seconds 5.11 seconds > stat tree 6.03 seconds 5.59 seconds 5.19 seconds > stat compiled tree 9.00 seconds 9.52 seconds 8.49 seconds > > > xfs + write_inode log_force removal > =================================== > intial create 25.87 MB/s 25.76 MB/s 25.87 MB/s > create 15.18 MB/s 14.80 MB/s 14.94 MB/s > patch 3.13 MB/s 3.14 MB/s 3.11 MB/s > compile 36.74 MB/s 37.17 MB/s 36.84 MB/s > clean 226.02 MB/s 222.58 MB/s 217.94 MB/s > read tree 15.14 MB/s 15.02 MB/s 15.14 MB/s > read compiled tree 29.30 MB/s 29.31 MB/s 29.32 MB/s > delete tree 6.22 seconds 6.14 seconds 6.15 seconds > delete compiled tree 5.75 seconds 5.92 seconds 5.81 seconds > stat tree 4.60 seconds 4.51 seconds 4.56 seconds > stat compiled tree 4.07 seconds 3.87 seconds 3.96 seconds > > Signed-off-by: Christoph Hellwig All great - I attempted this myself - but it breaks bulkstat. See xfstest 183: 183 2s ... - output mismatch (see 183.out.bad) --- 183.out 2010-04-28 15:00:22.000000000 +1000 +++ 183.out.bad 2010-06-09 17:10:23.000000000 +1000 @@ -1,4 +1,4 @@ QA output created by 183 Start original bulkstat_unlink_test with -r switch Runing extended checks. -Iteration 0 ... (100 files)passed +Iteration 0 ... (100 files)ERROR, count(2) != scount(1). Ran: 183 Failures: 183 Failed 1 of 1 tests Test 183 fails with this patch because it leaves the inode pinned in the WB_SYNC_ALL case after calling xfs_log_inode(), and so the inode can't be flushed to the backing buffer. Hence bulkstat may not see changes to an inode after a sync becuase they weren't flushed during the sync. I think that we need to revisit bulkstat's use of the backing buffers for performance reasons now we have a much more scalable inode cache. Having to keep the backing buffers coherent is only going to be more problematic in future as things get even more asynchronous.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From stan@hardwarefreak.com Wed Jun 9 02:40:37 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o597ea0W002152 for ; Wed, 9 Jun 2010 02:40:37 -0500 X-ASG-Debug-ID: 1276069568-37a703170000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from greer.hardwarefreak.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id C1AF810D12B5 for ; Wed, 9 Jun 2010 00:46:08 -0700 (PDT) Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id WkiTlOcP29OT2S7Q for ; Wed, 09 Jun 2010 00:46:08 -0700 (PDT) Received: from [192.168.100.53] (gffx.hardwarefreak.com [192.168.100.53]) by greer.hardwarefreak.com (Postfix) with ESMTP id E40166C3CE for ; Wed, 9 Jun 2010 02:43:07 -0500 (CDT) Message-ID: <4C0F470D.40805@hardwarefreak.com> Date: Wed, 09 Jun 2010 02:47:25 -0500 From: Stan Hoeppner User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9.1.9) Gecko/20100317 Thunderbird/3.0.4 MIME-Version: 1.0 To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] Subject: Re: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] References: <4C0E13A7.20402@msgid.tls.msk.ru> <20100608122919.GC7869@dastard> <4C0EA938.9000104@msgid.tls.msk.ru> <20100608231845.GG7869@dastard> <4C0F3819.4000409@msgid.tls.msk.ru> In-Reply-To: <4C0F3819.4000409@msgid.tls.msk.ru> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mo-65-41-216-221.sta.embarqhsd.net[65.41.216.221] X-Barracuda-Start-Time: 1276069568 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0656 1.0000 -1.6022 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.00 X-Barracuda-Spam-Status: No, SCORE=-1.00 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_SC5_MJ1963, RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32036 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Michael Tokarev put forth on 6/9/2010 1:43 AM: > Adaptec aacraid driver 1.1-5[2456]-ms Are you able to try newer 2.6.32.x or 2.6.33.x kernels? Have you tried a 2.6.30 series kernel? Are you rolling your own kernels or using distro provided kernels? -- Stan From SRS0+fHnJ+9+fromorbit.com=david@internode.on.net Wed Jun 9 02:45:14 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_22 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o597jEe2002443 for ; Wed, 9 Jun 2010 02:45:14 -0500 X-ASG-Debug-ID: 1276069664-668402380000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 4C6D11D57AE3 for ; Wed, 9 Jun 2010 00:47:45 -0700 (PDT) Received: from mail.internode.on.net (bld-mail14.adl6.internode.on.net [150.101.137.99]) by cuda.sgi.com with ESMTP id iEFyDDoAfimFd1tU for ; Wed, 09 Jun 2010 00:47:45 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27601230-1927428 for multiple; Wed, 09 Jun 2010 17:17:43 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OMG0k-0003lJ-1i; Wed, 09 Jun 2010 17:47:42 +1000 Date: Wed, 9 Jun 2010 17:47:41 +1000 From: Dave Chinner To: Michael Tokarev Cc: Linux-kernel , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] Subject: Re: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] Message-ID: <20100609074741.GJ7869@dastard> References: <4C0E13A7.20402@msgid.tls.msk.ru> <20100608122919.GC7869@dastard> <4C0EA938.9000104@msgid.tls.msk.ru> <20100608231845.GG7869@dastard> <4C0F3819.4000409@msgid.tls.msk.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C0F3819.4000409@msgid.tls.msk.ru> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail14.adl6.internode.on.net[150.101.137.99] X-Barracuda-Start-Time: 1276069666 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32035 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed, Jun 09, 2010 at 10:43:37AM +0400, Michael Tokarev wrote: > 09.06.2010 03:18, Dave Chinner wrote: > >On Wed, Jun 09, 2010 at 12:34:00AM +0400, Michael Tokarev wrote: > [] > >>Simple test doing random reads or writes of 4k blocks in a 1Gb > >>file located on an xfs filesystem, Mb/sec: > >> > >> sync direct > >> read write write > >>2.6.27 xfs 1.17 3.69 3.80 > >>2.6.32 xfs 1.26 0.52 5.10 > >> ^^^^ > >>2.6.32 ext3 1.19 4.91 5.02 Out of curiousity, what does 2.6.34 get on this workload? Also, what happens if you test with noop or deadline scheduler, rather than cfq (or whichever one you are using)? i.e. is this a scheduler regression rather than a filesystem issue? Also, a block trace of the sync write workload on both .27 and .32 would be interesting to see what the difference in IO patterns is... > >>Note the 10 times difference between O_SYNC and O_DIRECT writes > >>in 2.6.32. This is, well, huge difference, and this is where > >>the original slowdown comes from, apparently. > > > >Are you running on the raw block device, or on top of LVM/DM/MD to > >split up the space on the RAID drive? DM+MD have grown barrier > >support since 2.6.27, so it may be that barriers are now being > >passed down to the raid hardware on 2.6.32 and they never were on > >2.6.27. Can you paste the output of dmesg when the XFS filesystem in > > That's why I asked how to tell if barriers are actually hitting the > device in question. > > No, this is the only machine where DM/MD is _not_ used. On all other > machines we use MD software raid, this machine comes with an onboard > raid controller that does not work in JBOD mode so I weren't able to > use linux software raid. This is XFS on top of Adaptec RAID card, > nothing in-between. Well, I normally just create a raid0 lun per disk in those cases, hence the luns present the storage to linux as a JBOD.... > I also experimented with both O_SYNC|O_DIRECT: it is as slow as > without O_DIRECT, i.e. O_SYNC makes whole thing slow regardless > of other options. So it's the inode writeback that is causing the slowdown. We've recently changed O_SYNC semantics to be real O_SYNC, not O_DSYNC as .27 is. I can't remember if that was in 2.6.32 or not, but there's definitely a recent change to O_SYNC behaviouri that would cause this... > related to block devices or usage of barriers. For XFS it always > mounts like this: > > SGI XFS with ACLs, security attributes, large block/inode numbers, no debug enabled > SGI XFS Quota Management subsystem > XFS mounting filesystem sda6 So barriers are being issued. > and for the device in question, it is always like > > Adaptec aacraid driver 1.1-5[2456]-ms > aacraid 0000:03:01.0: PCI INT A -> GSI 24 (level, low) -> IRQ 24 > AAC0: kernel 5.1-0[8832] Feb 1 2006 Old firmware. An update might help. Cheers, Dave. -- Dave Chinner david@fromorbit.com From BATV+8834fde08b4412f74bd9+2481+infradead.org+hch@bombadil.srs.infradead.org Wed Jun 9 08:23:07 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o59DN5mJ015990 for ; Wed, 9 Jun 2010 08:23:07 -0500 X-ASG-Debug-ID: 1276090119-2ff303050000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 74785158FF1C for ; Wed, 9 Jun 2010 06:28:39 -0700 (PDT) Received: from bombadil.infradead.org ([18.85.46.34]) by cuda.sgi.com with ESMTP id 0ziie5tdtcCRRdLS for ; Wed, 09 Jun 2010 06:28:39 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OMLHk-0008Rx-1N; Wed, 09 Jun 2010 13:25:36 +0000 Date: Wed, 9 Jun 2010 09:25:36 -0400 From: Christoph Hellwig To: Eric Sandeen Cc: xfs-oss X-ASG-Orig-Subj: Re: [PATCH] xfstests 217: remove file in between mkfs's Subject: Re: [PATCH] xfstests 217: remove file in between mkfs's Message-ID: <20100609132536.GA31729@infradead.org> References: <4C0F0A4C.7050600@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C0F0A4C.7050600@sandeen.net> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[18.85.46.34] X-Barracuda-Start-Time: 1276090119 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 08, 2010 at 10:28:12PM -0500, Eric Sandeen wrote: > 217 requires a 2G scratch: > > _require_fs_space $SCRATCH_MNT 2202000 > > but as we mkfs different sizes, we actually are filling in the > sparse loopback more and more, and 3.8G isn't enough to contain it. > > If we remove & recreate the file between mkfs's it doesn't take > so much space ... I don't think it adds significantly to test time. > > Signed-off-by: Eric Sandeen Looks good, Reviewed-by: Christoph Hellwig From sandeen@sandeen.net Wed Jun 9 10:21:36 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o59FLZsW020864 for ; Wed, 9 Jun 2010 10:21:36 -0500 X-ASG-Debug-ID: 1276097031-58c103db0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.sandeen.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id B85C93ACC6D for ; Wed, 9 Jun 2010 08:23:51 -0700 (PDT) Received: from mail.sandeen.net (64-131-60-146.usfamily.net [64.131.60.146]) by cuda.sgi.com with ESMTP id joSOj0ejgD2DPsGJ for ; Wed, 09 Jun 2010 08:23:51 -0700 (PDT) Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sandeen.net (Postfix) with ESMTP id 8351D4968903; Wed, 9 Jun 2010 10:23:51 -0500 (CDT) Message-ID: <4C0FB207.20706@sandeen.net> Date: Wed, 09 Jun 2010 10:23:51 -0500 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.24 (Macintosh/20100228) MIME-Version: 1.0 To: xfs-oss CC: Amit Arora X-ASG-Orig-Subj: [PATCH] xfstests 228: suppress core dump message Subject: [PATCH] xfstests 228: suppress core dump message Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: 64-131-60-146.usfamily.net[64.131.60.146] X-Barracuda-Start-Time: 1276097032 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32064 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean When running 228 with abrt on in rhel6, I was getting different output due to a (core dumped) message on SIGXFSZ. For some reason I wasn't able to use sed to filter it, and just ulimit -c 0 didn't suppress it either. abrt sets the core pattern to: "|/usr/libexec/abrt-hook-ccpp /var/spool/abrt %p %s %u %c"" which apparently allows core dumps even if ulimit -c is 0, due to the pipe. Temporarily changing the kernel's core pattern to just plain "core" and setting ulimit -c to 0 does suppress it. These are reset to original values after the test is run. Signed-off-by: Eric Sandeen --- --- 228.orig 2010-06-09 11:13:27.000000000 -0400 +++ 228 2010-06-09 11:19:57.000000000 -0400 @@ -31,6 +31,8 @@ { cd / rm -f $tmp.* + sysctl -w kernel.core_pattern="$core_pattern" &>/dev/null + ulimit -c $ulimit_c } here=`pwd` @@ -58,6 +60,12 @@ avail=`df -P $TEST_DIR | awk 'END {print $4}'` [ "$avail" -ge 104000 ] || _notrun "Test device is too small ($avail KiB)" +# Suppress core dumped messages +core_pattern=`sysctl kernel.core_pattern | awk -F = '{print $NF}'` +ulimit_c=`ulimit -c` +sysctl -w kernel.core_pattern=core &>/dev/null +ulimit -c 0 + # Set the FSIZE ulimit to 100MB and check ulimit -f 102400 flim=`ulimit -f` From sandeen@sandeen.net Wed Jun 9 12:47:36 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o59Hlaae026182 for ; Wed, 9 Jun 2010 12:47:36 -0500 X-ASG-Debug-ID: 1276105791-4bad028f0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.sandeen.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 911773AD6E7 for ; Wed, 9 Jun 2010 10:49:51 -0700 (PDT) Received: from mail.sandeen.net (64-131-60-146.usfamily.net [64.131.60.146]) by cuda.sgi.com with ESMTP id tMcIj0U0Fm5rHuEt for ; Wed, 09 Jun 2010 10:49:51 -0700 (PDT) Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sandeen.net (Postfix) with ESMTP id AFAF14968903; Wed, 9 Jun 2010 12:49:50 -0500 (CDT) Message-ID: <4C0FD43D.3040803@sandeen.net> Date: Wed, 09 Jun 2010 12:49:49 -0500 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.24 (Macintosh/20100228) MIME-Version: 1.0 To: Jan Kara CC: xfs@oss.sgi.com, hch@infradead.org X-ASG-Orig-Subj: Re: [PATCH 4/8] Add test of quota accounting using fsx Subject: Re: [PATCH 4/8] Add test of quota accounting using fsx References: <1274710459-11446-1-git-send-email-jack@suse.cz> <1274710459-11446-5-git-send-email-jack@suse.cz> In-Reply-To: <1274710459-11446-5-git-send-email-jack@suse.cz> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: 64-131-60-146.usfamily.net[64.131.60.146] X-Barracuda-Start-Time: 1276105791 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32072 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Jan Kara wrote: > Run fsx (and also several fsx threads in parallel) and verify that > quota accounting is correct after they finish. Jan, I'm having trouble with this one on XFS for some reason, with our RHEL6 kernel and quota-3.17... +Disabling group quota enforcement and accounting on /dev/mapper/VolGroup00-testvol2 +Disabling user quota enforcement and accounting on /dev/mapper/VolGroup00-testvol2 +repquota: Mountpoint (or device) /mnt/testarea/scratch not found or has no quota enabled. +repquota: Not all specified mountpoints are using quota. +repquota: Mountpoint (or device) /mnt/testarea/scratch not found or has no quota enabled. +repquota: Not all specified mountpoints are using quota. ... however if I remove the quotaon calls (off / on settings) in check_usage() then it works: check_usage() { # quotaon -f -u -g $SCRATCH_MNT 2>/dev/null repquota -u -g $SCRATCH_MNT | grep -v "^root" | filter_scratch \ >$tmp.orig quotacheck -u -g $SCRATCH_MNT 2>/dev/null repquota -u -g $SCRATCH_MNT | grep -v "^root" | filter_scratch \ >$tmp.checked # quotaon -u -g $SCRATCH_MNT 2>/dev/null diff $tmp.orig $tmp.checked } Seems like 2 issues: noisy disable messages, and repquota failing when disabled. Any ideas? Thanks, -Eric From mjt@tls.msk.ru Wed Jun 9 14:09:24 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o59J9N74028872 for ; Wed, 9 Jun 2010 14:09:24 -0500 X-ASG-Debug-ID: 1276110897-130101b80000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from isrv.corpit.ru (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id A87F7121685F for ; Wed, 9 Jun 2010 12:14:57 -0700 (PDT) Received: from isrv.corpit.ru (isrv.corpit.ru [81.13.33.159]) by cuda.sgi.com with ESMTP id PevBAxsiQubbNLr8 for ; Wed, 09 Jun 2010 12:14:57 -0700 (PDT) X-ASG-Whitelist: Barracuda Reputation Received: from [192.168.88.2] (mjt.vpn.tls.msk.ru [192.168.10.88]) by isrv.corpit.ru (Postfix) with ESMTP id 00591414CF; Wed, 9 Jun 2010 23:11:53 +0400 (MSD) (envelope-from mjt@tls.msk.ru) Message-ID: <4C0FE779.8010603@msgid.tls.msk.ru> Date: Wed, 09 Jun 2010 23:11:53 +0400 From: Michael Tokarev Organization: Telecom Service, JSC User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.1.9) Gecko/20100411 Icedove/3.0.4 MIME-Version: 1.0 To: Dave Chinner CC: Linux-kernel , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] Subject: Re: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] References: <4C0E13A7.20402@msgid.tls.msk.ru> <20100608122919.GC7869@dastard> <4C0EA938.9000104@msgid.tls.msk.ru> <20100608231845.GG7869@dastard> <4C0F3819.4000409@msgid.tls.msk.ru> <20100609074741.GJ7869@dastard> In-Reply-To: <20100609074741.GJ7869@dastard> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: isrv.corpit.ru[81.13.33.159] X-Barracuda-Start-Time: 1276110898 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean 09.06.2010 11:47, Dave Chinner wrote: > On Wed, Jun 09, 2010 at 10:43:37AM +0400, Michael Tokarev wrote: >> 09.06.2010 03:18, Dave Chinner wrote: >>> On Wed, Jun 09, 2010 at 12:34:00AM +0400, Michael Tokarev wrote: >> [] >>>> Simple test doing random reads or writes of 4k blocks in a 1Gb >>>> file located on an xfs filesystem, Mb/sec: >>>> >>>> sync direct >>>> read write write >>>> 2.6.27 xfs 1.17 3.69 3.80 >>>> 2.6.32 xfs 1.26 0.52 5.10 >>>> ^^^^ >>>> 2.6.32 ext3 1.19 4.91 5.02 > > Out of curiousity, what does 2.6.34 get on this workload? 2.6.34 works quite well: 2.6.34 xfs 1.14 4.75 5.00 The same is with -o osyncisosync (in .34). Actually, osyncis[od]sync mount options does not change anything, not in .32 nor in .34. > Also, what happens if you test with noop or deadline scheduler, > rather than cfq (or whichever one you are using)? i.e. is this a > scheduler regression rather than a filesystem issue? Using deadline. Switching to noop makes no difference whatsoever. > Also, a block trace of the sync write workload on both .27 and .32 > would be interesting to see what the difference in IO patterns is... I see. Will try to collect them. With the limited timeframe I have to do any testing. [] > Well, I normally just create a raid0 lun per disk in those cases, > hence the luns present the storage to linux as a JBOD.... That's, um, somewhat ugly :) >> I also experimented with both O_SYNC|O_DIRECT: it is as slow as >> without O_DIRECT, i.e. O_SYNC makes whole thing slow regardless >> of other options. > > So it's the inode writeback that is causing the slowdown. We've > recently changed O_SYNC semantics to be real O_SYNC, not O_DSYNC > as .27 is. I can't remember if that was in 2.6.32 or not, but > there's definitely a recent change to O_SYNC behaviouri that would > cause this... But there are two mount options that seems to control this behavour: osyncisosync and osyncisdsync. Neither of which - seemingly - makes no difference. >> related to block devices or usage of barriers. For XFS it always >> mounts like this: >> >> SGI XFS with ACLs, security attributes, large block/inode numbers, no debug enabled >> SGI XFS Quota Management subsystem >> XFS mounting filesystem sda6 > > So barriers are being issued. They _are_ being issued, I knew it from the start. What I asked several times is if there's a way to know if they're _hitting_ the actual low-level device (disk or raid controller). This is entirely different story... ;) >> and for the device in question, it is always like >> >> Adaptec aacraid driver 1.1-5[2456]-ms >> aacraid 0000:03:01.0: PCI INT A -> GSI 24 (level, low) -> IRQ 24 >> AAC0: kernel 5.1-0[8832] Feb 1 2006 > > Old firmware. An update might help. Well, it worked just fine in .27. So far I see some problem in kernel, not in controller [firmware]... ;) Thank you ! /mjt From akpm@linux-foundation.org Wed Jun 9 16:07:52 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.1 required=5.0 tests=BAYES_00,SUBJ_ATTENTION autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o59L7qjV032559 for ; Wed, 9 Jun 2010 16:07:52 -0500 X-ASG-Debug-ID: 1276118005-02be020e0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp1.linux-foundation.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 092231591969 for ; Wed, 9 Jun 2010 14:13:25 -0700 (PDT) Received: from smtp1.linux-foundation.org (smtp1.linux-foundation.org [140.211.169.13]) by cuda.sgi.com with ESMTP id VqIGzDJB85EnA6MM for ; Wed, 09 Jun 2010 14:13:25 -0700 (PDT) Received: from imap1.linux-foundation.org (imap1.linux-foundation.org [140.211.169.55]) by smtp1.linux-foundation.org (8.14.2/8.13.5/Debian-3ubuntu1.1) with ESMTP id o59L9hBF024583 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 9 Jun 2010 14:09:44 -0700 Received: from akpm.mtv.corp.google.com (localhost [127.0.0.1]) by imap1.linux-foundation.org (8.13.5.20060308/8.13.5/Debian-3ubuntu1.1) with SMTP id o59L9h2U021764; Wed, 9 Jun 2010 14:09:43 -0700 Date: Wed, 9 Jun 2010 14:09:42 -0700 From: Andrew Morton To: Dave Chinner Cc: torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, stable@kernel.org X-ASG-Orig-Subj: Re: [PATCH 1/3] writeback: pay attention to wbc->nr_to_write in write_cache_pages Subject: Re: [PATCH 1/3] writeback: pay attention to wbc->nr_to_write in write_cache_pages Message-Id: <20100609140942.6799c84a.akpm@linux-foundation.org> In-Reply-To: <1276043840-1946-2-git-send-email-david@fromorbit.com> References: <1276043840-1946-1-git-send-email-david@fromorbit.com> <1276043840-1946-2-git-send-email-david@fromorbit.com> X-Mailer: Sylpheed 2.4.8 (GTK+ 2.12.9; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-MIMEDefang-Filter: lf$Revision: 1.188 $ X-Scanned-By: MIMEDefang 2.63 on 140.211.169.13 X-Barracuda-Connect: smtp1.linux-foundation.org[140.211.169.13] X-Barracuda-Start-Time: 1276118007 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32083 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed, 9 Jun 2010 10:37:18 +1000 Dave Chinner wrote: > From: Dave Chinner > > If a filesystem writes more than one page in ->writepage, write_cache_pages > fails to notice this and continues to attempt writeback when wbc->nr_to_write > has gone negative - this trace was captured from XFS: > > > wbc_writeback_start: towrt=1024 > wbc_writepage: towrt=1024 > wbc_writepage: towrt=0 > wbc_writepage: towrt=-1 > wbc_writepage: towrt=-5 > wbc_writepage: towrt=-21 > wbc_writepage: towrt=-85 > > This has adverse effects on filesystem writeback behaviour. write_cache_pages() > needs to terminate after a certain number of pages are written, not after a > certain number of calls to ->writepage are made. This is a regression > introduced by 17bc6c30cf6bfffd816bdc53682dd46fc34a2cf4 ("vfs: Add > no_nrwrite_index_update writeback control flag"), but cannot be reverted > directly due to subsequent bug fixes that have gone in on top of it. Might be needed in -stable. Unfortunately the most important piece of information which is needed to make that decision was cunningly hidden from us behind the vague-to-the-point-of-uselessness term "adverse effects". _what_ "adverse effects"?? From akpm@linux-foundation.org Wed Jun 9 16:08:28 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o59L8ShX032601 for ; Wed, 9 Jun 2010 16:08:28 -0500 X-ASG-Debug-ID: 1276118043-0a6001ae0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp1.linux-foundation.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id AFE071591985 for ; Wed, 9 Jun 2010 14:14:03 -0700 (PDT) Received: from smtp1.linux-foundation.org (smtp1.linux-foundation.org [140.211.169.13]) by cuda.sgi.com with ESMTP id lvualAShKuyTzayy for ; Wed, 09 Jun 2010 14:14:03 -0700 (PDT) Received: from imap1.linux-foundation.org (imap1.linux-foundation.org [140.211.169.55]) by smtp1.linux-foundation.org (8.14.2/8.13.5/Debian-3ubuntu1.1) with ESMTP id o59LAQKB024673 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 9 Jun 2010 14:10:27 -0700 Received: from akpm.mtv.corp.google.com (localhost [127.0.0.1]) by imap1.linux-foundation.org (8.13.5.20060308/8.13.5/Debian-3ubuntu1.1) with SMTP id o59LAQRM021793; Wed, 9 Jun 2010 14:10:26 -0700 Date: Wed, 9 Jun 2010 14:10:26 -0700 From: Andrew Morton To: Dave Chinner Cc: torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, stable@kernel.org X-ASG-Orig-Subj: Re: [PATCH 2/3] xfs: remove nr_to_write writeback windup. Subject: Re: [PATCH 2/3] xfs: remove nr_to_write writeback windup. Message-Id: <20100609141026.977baebf.akpm@linux-foundation.org> In-Reply-To: <1276043840-1946-3-git-send-email-david@fromorbit.com> References: <1276043840-1946-1-git-send-email-david@fromorbit.com> <1276043840-1946-3-git-send-email-david@fromorbit.com> X-Mailer: Sylpheed 2.4.8 (GTK+ 2.12.9; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-MIMEDefang-Filter: lf$Revision: 1.188 $ X-Scanned-By: MIMEDefang 2.63 on 140.211.169.13 X-Barracuda-Connect: smtp1.linux-foundation.org[140.211.169.13] X-Barracuda-Start-Time: 1276118043 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32083 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed, 9 Jun 2010 10:37:19 +1000 Dave Chinner wrote: > From: Dave Chinner > > Now that the background flush code has been fixed, we shouldn't need to > silently multiply the wbc->nr_to_write to get good writeback. Remove > that code. > And anyone who merges [1/3] will want to merge this. Otherwise they might suffer adverse effects ;) From akpm@linux-foundation.org Wed Jun 9 16:10:10 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o59LAAUs032677 for ; Wed, 9 Jun 2010 16:10:10 -0500 X-ASG-Debug-ID: 1276118145-0a1501ba0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp1.linux-foundation.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id AD51815919C6 for ; Wed, 9 Jun 2010 14:15:45 -0700 (PDT) Received: from smtp1.linux-foundation.org (smtp1.linux-foundation.org [140.211.169.13]) by cuda.sgi.com with ESMTP id UEeOcOHFSbEFW85X for ; Wed, 09 Jun 2010 14:15:45 -0700 (PDT) Received: from imap1.linux-foundation.org (imap1.linux-foundation.org [140.211.169.55]) by smtp1.linux-foundation.org (8.14.2/8.13.5/Debian-3ubuntu1.1) with ESMTP id o59LC8aJ024935 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 9 Jun 2010 14:12:09 -0700 Received: from akpm.mtv.corp.google.com (localhost [127.0.0.1]) by imap1.linux-foundation.org (8.13.5.20060308/8.13.5/Debian-3ubuntu1.1) with SMTP id o59LC8Yu021940; Wed, 9 Jun 2010 14:12:08 -0700 Date: Wed, 9 Jun 2010 14:12:08 -0700 From: Andrew Morton To: Dave Chinner Cc: torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, stable@kernel.org X-ASG-Orig-Subj: Re: [PATCH 3/3] writeback: limit write_cache_pages integrity scanning to current EOF Subject: Re: [PATCH 3/3] writeback: limit write_cache_pages integrity scanning to current EOF Message-Id: <20100609141208.a1babcf4.akpm@linux-foundation.org> In-Reply-To: <1276043840-1946-4-git-send-email-david@fromorbit.com> References: <1276043840-1946-1-git-send-email-david@fromorbit.com> <1276043840-1946-4-git-send-email-david@fromorbit.com> X-Mailer: Sylpheed 2.4.8 (GTK+ 2.12.9; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-MIMEDefang-Filter: lf$Revision: 1.188 $ X-Scanned-By: MIMEDefang 2.63 on 140.211.169.13 X-Barracuda-Connect: smtp1.linux-foundation.org[140.211.169.13] X-Barracuda-Start-Time: 1276118145 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32083 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed, 9 Jun 2010 10:37:20 +1000 Dave Chinner wrote: > From: Dave Chinner > > sync can currently take a really long time if a concurrent writer is > extending a file. The problem is that the dirty pages on the address > space grow in the same direction as write_cache_pages scans, so if > the writer keeps ahead of writeback, the writeback will not > terminate until the writer stops adding dirty pages. > > For a data integrity sync, we only need to write the pages dirty at > the time we start the writeback, so we can stop scanning once we get > to the page that was at the end of the file at the time the scan > started. > > This will prevent operations like copying a large file preventing > sync from completing as it will not write back pages that were > dirtied after the sync was started. This does not impact the > existing integrity guarantees, as any dirty page (old or new) > within the EOF range at the start of the scan will still be > captured. > > This patch will not prevent sync from blocking on large writes into > holes. That requires more complex intervention while this patch only > addresses the common append-case of this sync holdoff. > I don't know if this regression sucks enough to warrant backporting, but the fix is simple and is independent of [1/3] and [2/3]. From SRS0+GmJu+9+fromorbit.com=david@internode.on.net Wed Jun 9 17:55:41 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.1 required=5.0 tests=BAYES_00,SUBJ_ATTENTION autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o59Mte9Y037138 for ; Wed, 9 Jun 2010 17:55:41 -0500 X-ASG-Debug-ID: 1276124291-5e7703050000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id F3CB01B6D867 for ; Wed, 9 Jun 2010 15:58:11 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id GVdX0hdUboemXIKj for ; Wed, 09 Jun 2010 15:58:11 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27493122-1927428 for multiple; Thu, 10 Jun 2010 08:28:07 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OMUDl-0004nV-0B; Thu, 10 Jun 2010 08:58:05 +1000 Date: Thu, 10 Jun 2010 08:58:04 +1000 From: Dave Chinner To: Andrew Morton Cc: torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, stable@kernel.org X-ASG-Orig-Subj: Re: [PATCH 1/3] writeback: pay attention to wbc->nr_to_write in write_cache_pages Subject: Re: [PATCH 1/3] writeback: pay attention to wbc->nr_to_write in write_cache_pages Message-ID: <20100609225804.GK7869@dastard> References: <1276043840-1946-1-git-send-email-david@fromorbit.com> <1276043840-1946-2-git-send-email-david@fromorbit.com> <20100609140942.6799c84a.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100609140942.6799c84a.akpm@linux-foundation.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1276124293 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32089 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed, Jun 09, 2010 at 02:09:42PM -0700, Andrew Morton wrote: > On Wed, 9 Jun 2010 10:37:18 +1000 > Dave Chinner wrote: > > > From: Dave Chinner > > > > If a filesystem writes more than one page in ->writepage, write_cache_pages > > fails to notice this and continues to attempt writeback when wbc->nr_to_write > > has gone negative - this trace was captured from XFS: > > > > > > wbc_writeback_start: towrt=1024 > > wbc_writepage: towrt=1024 > > wbc_writepage: towrt=0 > > wbc_writepage: towrt=-1 > > wbc_writepage: towrt=-5 > > wbc_writepage: towrt=-21 > > wbc_writepage: towrt=-85 > > > > This has adverse effects on filesystem writeback behaviour. write_cache_pages() > > needs to terminate after a certain number of pages are written, not after a > > certain number of calls to ->writepage are made. This is a regression > > introduced by 17bc6c30cf6bfffd816bdc53682dd46fc34a2cf4 ("vfs: Add > > no_nrwrite_index_update writeback control flag"), but cannot be reverted > > directly due to subsequent bug fixes that have gone in on top of it. > > Might be needed in -stable. Unfortunately the most important piece of > information which is needed to make that decision was cunningly hidden > from us behind the vague-to-the-point-of-uselessness term "adverse > effects". > > _what_ "adverse effects"?? Depends on how the specific filesystem handles a negative nr_to_write, doesn't it? I can't speak for the exact effect on anything other than XFS except to say that most ->write_page implemetnations don't handle the wbc->nr_to_write < 0 specifically... For XFS, it results in increased CPU usage because it triggers page-at-a-time allocation (i.e no clustering), which increases overhead in the elveator due to merging requirements of single page bios and increased fragmentation due to small interleaved allocations on concurrent writeback workloads. Effectively it causes accelerated aging of XFS filesystems... Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0+0ds4+10+fromorbit.com=david@internode.on.net Wed Jun 9 19:05:51 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.1 required=5.0 tests=BAYES_00,SUBJ_ATTENTION autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5A05oAI040652 for ; Wed, 9 Jun 2010 19:05:51 -0500 X-ASG-Debug-ID: 1276128501-727803220000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id D600B3B86CC for ; Wed, 9 Jun 2010 17:08:21 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id NIh2uifdLeN1oujS for ; Wed, 09 Jun 2010 17:08:21 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27502047-1927428 for multiple; Thu, 10 Jun 2010 09:38:14 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OMVJb-0004rb-Jj; Thu, 10 Jun 2010 10:08:11 +1000 Date: Thu, 10 Jun 2010 10:08:11 +1000 From: Dave Chinner To: Andrew Morton Cc: torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, stable@kernel.org X-ASG-Orig-Subj: Re: [PATCH 1/3] writeback: pay attention to wbc->nr_to_write in write_cache_pages Subject: Re: [PATCH 1/3] writeback: pay attention to wbc->nr_to_write in write_cache_pages Message-ID: <20100610000811.GL7869@dastard> References: <1276043840-1946-1-git-send-email-david@fromorbit.com> <1276043840-1946-2-git-send-email-david@fromorbit.com> <20100609140942.6799c84a.akpm@linux-foundation.org> <20100609225804.GK7869@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100609225804.GK7869@dastard> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1276128502 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32093 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu, Jun 10, 2010 at 08:58:04AM +1000, Dave Chinner wrote: > On Wed, Jun 09, 2010 at 02:09:42PM -0700, Andrew Morton wrote: > > On Wed, 9 Jun 2010 10:37:18 +1000 > > Dave Chinner wrote: > > > > > From: Dave Chinner > > > > > > If a filesystem writes more than one page in ->writepage, write_cache_pages > > > fails to notice this and continues to attempt writeback when wbc->nr_to_write > > > has gone negative - this trace was captured from XFS: > > > > > > > > > wbc_writeback_start: towrt=1024 > > > wbc_writepage: towrt=1024 > > > wbc_writepage: towrt=0 > > > wbc_writepage: towrt=-1 > > > wbc_writepage: towrt=-5 > > > wbc_writepage: towrt=-21 > > > wbc_writepage: towrt=-85 > > > > > > This has adverse effects on filesystem writeback behaviour. write_cache_pages() > > > needs to terminate after a certain number of pages are written, not after a > > > certain number of calls to ->writepage are made. This is a regression > > > introduced by 17bc6c30cf6bfffd816bdc53682dd46fc34a2cf4 ("vfs: Add > > > no_nrwrite_index_update writeback control flag"), but cannot be reverted > > > directly due to subsequent bug fixes that have gone in on top of it. > > > > Might be needed in -stable. Unfortunately the most important piece of > > information which is needed to make that decision was cunningly hidden > > from us behind the vague-to-the-point-of-uselessness term "adverse > > effects". > > > > _what_ "adverse effects"?? > > Depends on how the specific filesystem handles a negative > nr_to_write, doesn't it? I can't speak for the exact effect on > anything other than XFS except to say that most ->write_page > implemetnations don't handle the wbc->nr_to_write < 0 specifically... > > For XFS, it results in increased CPU usage because it triggers > page-at-a-time allocation (i.e no clustering), which increases > overhead in the elveator due to merging requirements of single page > bios and increased fragmentation due to small interleaved > allocations on concurrent writeback workloads. Effectively it causes > accelerated aging of XFS filesystems... Sorry, forgot to address the -stable part of the question. This series is dependent on the ext4 change to use it's own writepage going into -stable first. (i.e. 8e48dcfbd7c0892b4cfd064d682cc4c95a29df32 "ext4: Use our own write_cache_pages()"). I'd suggest that all 4 patches (the ext4 patch and the three in this series) should go back to 2.6.34-stable due to the long term affect this writeback bug could have on XFS filesystems, and the sync taking too long problem has been fairly widely reported since at least .32... Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0+jHpW+10+fromorbit.com=david@internode.on.net Wed Jun 9 19:44:33 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5A0iXZE042216 for ; Wed, 9 Jun 2010 19:44:33 -0500 X-ASG-Debug-ID: 1276130824-4cc7010f0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id EF64714AFEFE for ; Wed, 9 Jun 2010 17:47:04 -0700 (PDT) Received: from mail.internode.on.net (bld-mail17.adl2.internode.on.net [150.101.137.102]) by cuda.sgi.com with ESMTP id wGkgZzGQRTojSE09 for ; Wed, 09 Jun 2010 17:47:04 -0700 (PDT) Received: from dastard (unverified [121.44.131.110]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27229243-1927428 for multiple; Thu, 10 Jun 2010 10:17:03 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OMVvB-0004tx-U6; Thu, 10 Jun 2010 10:47:01 +1000 Date: Thu, 10 Jun 2010 10:47:01 +1000 From: Dave Chinner To: Michael Tokarev Cc: Linux-kernel , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] Subject: Re: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] Message-ID: <20100610004701.GN7869@dastard> References: <4C0E13A7.20402@msgid.tls.msk.ru> <20100608122919.GC7869@dastard> <4C0EA938.9000104@msgid.tls.msk.ru> <20100608231845.GG7869@dastard> <4C0F3819.4000409@msgid.tls.msk.ru> <20100609074741.GJ7869@dastard> <4C0FE779.8010603@msgid.tls.msk.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C0FE779.8010603@msgid.tls.msk.ru> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail17.adl2.internode.on.net[150.101.137.102] X-Barracuda-Start-Time: 1276130825 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32095 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed, Jun 09, 2010 at 11:11:53PM +0400, Michael Tokarev wrote: > 09.06.2010 11:47, Dave Chinner wrote: > >On Wed, Jun 09, 2010 at 10:43:37AM +0400, Michael Tokarev wrote: > >>09.06.2010 03:18, Dave Chinner wrote: > >>>On Wed, Jun 09, 2010 at 12:34:00AM +0400, Michael Tokarev wrote: > >>[] > >>>>Simple test doing random reads or writes of 4k blocks in a 1Gb > >>>>file located on an xfs filesystem, Mb/sec: > >>>> > >>>> sync direct > >>>> read write write > >>>>2.6.27 xfs 1.17 3.69 3.80 > >>>>2.6.32 xfs 1.26 0.52 5.10 > >>>> ^^^^ > >>>>2.6.32 ext3 1.19 4.91 5.02 > > > >Out of curiousity, what does 2.6.34 get on this workload? > > 2.6.34 works quite well: > 2.6.34 xfs 1.14 4.75 5.00 Ok, so we are looking at a fixed regression, then. What stable version of 2.6.32 are you testing? A large number of XFS fixes went into 2.6.32.12 (IIRC, it might have been .13), so maybe the problem is fixed there. Alternatively, can you use 2.6.34 rather than 2.6.32, or bisect the regression down to a specific set of fixes so we can consider whether a backport is worth the effort? > The same is with -o osyncisosync (in .34). Actually, > osyncis[od]sync mount options does not change anything, not > in .32 nor in .34. I think only osyncisosync exists, and it doesn't do anything anymore. Cheers, Dave. -- Dave Chinner david@fromorbit.com From mjt@tls.msk.ru Thu Jun 10 00:56:48 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5A5um9d056874 for ; Thu, 10 Jun 2010 00:56:48 -0500 X-ASG-Debug-ID: 1276149560-562302500000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from isrv.corpit.ru (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 7271D3B9345 for ; Wed, 9 Jun 2010 22:59:20 -0700 (PDT) Received: from isrv.corpit.ru (isrv.corpit.ru [81.13.33.159]) by cuda.sgi.com with ESMTP id cSf2scIOHM9xLPdT for ; Wed, 09 Jun 2010 22:59:20 -0700 (PDT) X-ASG-Whitelist: Barracuda Reputation Received: from [192.168.88.2] (mjt.vpn.tls.msk.ru [192.168.10.88]) by isrv.corpit.ru (Postfix) with ESMTP id 713FB41609; Thu, 10 Jun 2010 09:59:19 +0400 (MSD) (envelope-from mjt@tls.msk.ru) Message-ID: <4C107F36.4070000@msgid.tls.msk.ru> Date: Thu, 10 Jun 2010 09:59:18 +0400 From: Michael Tokarev Organization: Telecom Service, JSC User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.1.9) Gecko/20100411 Icedove/3.0.4 MIME-Version: 1.0 To: Dave Chinner CC: Linux-kernel , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] Subject: Re: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] References: <4C0E13A7.20402@msgid.tls.msk.ru> <20100608122919.GC7869@dastard> <4C0EA938.9000104@msgid.tls.msk.ru> <20100608231845.GG7869@dastard> <4C0F3819.4000409@msgid.tls.msk.ru> <20100609074741.GJ7869@dastard> <4C0FE779.8010603@msgid.tls.msk.ru> <20100610004701.GN7869@dastard> In-Reply-To: <20100610004701.GN7869@dastard> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: isrv.corpit.ru[81.13.33.159] X-Barracuda-Start-Time: 1276149561 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean 10.06.2010 04:47, Dave Chinner wrote: > On Wed, Jun 09, 2010 at 11:11:53PM +0400, Michael Tokarev wrote: >> 09.06.2010 11:47, Dave Chinner wrote: >>> On Wed, Jun 09, 2010 at 10:43:37AM +0400, Michael Tokarev wrote: >>>> 09.06.2010 03:18, Dave Chinner wrote: >>>>> On Wed, Jun 09, 2010 at 12:34:00AM +0400, Michael Tokarev wrote: >>>> [] >>>>>> Simple test doing random reads or writes of 4k blocks in a 1Gb >>>>>> file located on an xfs filesystem, Mb/sec: >>>>>> >>>>>> sync direct >>>>>> read write write >>>>>> 2.6.27 xfs 1.17 3.69 3.80 >>>>>> 2.6.32 xfs 1.26 0.52 5.10 >>>>>> ^^^^ >>>>>> 2.6.32 ext3 1.19 4.91 5.02 >>> >>> Out of curiousity, what does 2.6.34 get on this workload? >> >> 2.6.34 works quite well: >> 2.6.34 xfs 1.14 4.75 5.00 > > Ok, so we are looking at a fixed regression, then. What stable > version of 2.6.32 are you testing? A large number of XFS fixes went > into 2.6.32.12 (IIRC, it might have been .13), so maybe the problem > is fixed there. Alternatively, can you use 2.6.34 rather than > 2.6.32, or bisect the regression down to a specific set of fixes so > we can consider whether a backport is worth the effort? I tried 2.6.32.15. A few previous versions too, but all recent testing were with 2.6.32.15. So no, the fix is not in 2.6.32.y yet, since .15 is the latest currently. Too bad it'd be very difficult for me to do any bisection, -- users are not comfortable at all already due to all my experiments, -- f.e. their reports that are collecting for whole night stopped working completely since a few days ago (because every night I'm rebooting the machine). Yes it'd be nice to have this fixed in 2.6.32.y. And I promise I'll try to find time for bisection (but not promise the tries will be successful... ;). Definitely worth a try anyway. Thank you! /mjt From jack@suse.cz Thu Jun 10 05:56:02 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5AAu2BK070073 for ; Thu, 10 Jun 2010 05:56:02 -0500 X-ASG-Debug-ID: 1276167514-62c800ed0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mx2.suse.de (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id A7B461D57D28 for ; Thu, 10 Jun 2010 03:58:35 -0700 (PDT) Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id JhUREZhy9ZObRo1n for ; Thu, 10 Jun 2010 03:58:35 -0700 (PDT) Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.221.2]) by mx2.suse.de (Postfix) with ESMTP id BA4C65FC9F; Thu, 10 Jun 2010 12:58:33 +0200 (CEST) Received: by quack.suse.cz (Postfix, from userid 10005) id 4AE012B1BBF; Thu, 10 Jun 2010 12:58:14 +0200 (CEST) Date: Thu, 10 Jun 2010 12:58:14 +0200 From: Jan Kara To: Eric Sandeen Cc: Jan Kara , xfs@oss.sgi.com, hch@infradead.org X-ASG-Orig-Subj: Re: [PATCH 4/8] Add test of quota accounting using fsx Subject: Re: [PATCH 4/8] Add test of quota accounting using fsx Message-ID: <20100610105813.GB10827@quack.suse.cz> References: <1274710459-11446-1-git-send-email-jack@suse.cz> <1274710459-11446-5-git-send-email-jack@suse.cz> <4C0FD43D.3040803@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C0FD43D.3040803@sandeen.net> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: cantor2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1276167515 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32136 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed 09-06-10 12:49:49, Eric Sandeen wrote: > Jan Kara wrote: > > Run fsx (and also several fsx threads in parallel) and verify that > > quota accounting is correct after they finish. > > Jan, I'm having trouble with this one on XFS for some reason, with our > RHEL6 kernel and quota-3.17... > > +Disabling group quota enforcement and accounting on /dev/mapper/VolGroup00-testvol2 > +Disabling user quota enforcement and accounting on /dev/mapper/VolGroup00-testvol2 > +repquota: Mountpoint (or device) /mnt/testarea/scratch not found or has no quota enabled. > +repquota: Not all specified mountpoints are using quota. > +repquota: Mountpoint (or device) /mnt/testarea/scratch not found or has no quota enabled. > +repquota: Not all specified mountpoints are using quota. > > ... > > however if I remove the quotaon calls (off / on settings) in check_usage() > then it works: > > check_usage() > { > # quotaon -f -u -g $SCRATCH_MNT 2>/dev/null > repquota -u -g $SCRATCH_MNT | grep -v "^root" | filter_scratch \ > >$tmp.orig > quotacheck -u -g $SCRATCH_MNT 2>/dev/null > repquota -u -g $SCRATCH_MNT | grep -v "^root" | filter_scratch \ > >$tmp.checked > # quotaon -u -g $SCRATCH_MNT 2>/dev/null > diff $tmp.orig $tmp.checked > } > > > Seems like 2 issues: noisy disable messages, and repquota failing when disabled. I've fixed noisy disable messages in quotaon (without -v flag only errors should be printed) in CVS. With repquota & disabled quotas it's a bit more complicated. The problem is that for ext?, reiserfs,... you have to disable quotas before running quotacheck. Also quotacheck is NOP for XFS - we'd rather need to call something to really recompute quota usage for XFS. How that can be done? Honza -- Jan Kara SUSE Labs, CR From michael.monnerie@is.it-management.at Thu Jun 10 06:03:41 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5AB3eAt070413 for ; Thu, 10 Jun 2010 06:03:41 -0500 X-ASG-Debug-ID: 1276168156-679e02170000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 0A45510DEE79 for ; Thu, 10 Jun 2010 04:09:16 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id X3qHg4H1NVpToiwZ for ; Thu, 10 Jun 2010 04:09:16 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id 6342C400 for ; Thu, 10 Jun 2010 13:06:09 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id 98D9783C804 for ; Thu, 10 Jun 2010 13:06:08 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: "xfs-oss" X-ASG-Orig-Subj: xfs_repair 3.1.2 crashing Subject: xfs_repair 3.1.2 crashing Date: Thu, 10 Jun 2010 13:06:07 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) MIME-Version: 1.0 Message-Id: <201006101306.07587@zmi.at> Content-Type: multipart/signed; boundary="nextPart1330499.8yamHWJK84"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1276168158 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_SC5_SA210e X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32137 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC5_SA210e Custom Rule SA210e X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart1330499.8yamHWJK84 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Dear devs, I have a massive problem with a filesystem in our internal=20 server. We've had an overheating problem with the RAID controller CPU,=20 as it's very hot here and aircondition was turn off... the system "just"=20 stopped working. This is a XenServer with some Linuxen on it, and one of=20 them (of course our main server :-) reports this on xfs_repair: Phase 1 - find and verify superblock... Phase 2 - using internal 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... - agno =3D 0 - agno =3D 1 local inode 2267035928 attr too small (size =3D 3, min size =3D 4) bad attribute fork in inode 2267035928, clearing attr fork clearing inode 2267035928 attributes cleared inode 2267035928 - agno =3D 2 - agno =3D 3 - agno =3D 4 - agno =3D 5 - agno =3D 6 - process newly discovered inodes... Phase 4 - check for duplicate blocks... - setting up duplicate extent list... - check for inodes claiming duplicate blocks... - agno =3D 0 - agno =3D 2 - agno =3D 1 data fork in regular inode 2267035928 claims used block 537158068 xfs_repair: dinode.c:2101: process_inode_data_fork: Assertion `err =3D=3D 0= '=20 failed. Any ideas? Before that, I had 3.0.3 installed, it found tons of errors before also=20 crashing. I'll send that log later. =2D-=20 mit freundlichen Gr=C3=BCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=C3=A4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart1330499.8yamHWJK84 Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwQxx8ACgkQzhSR9xwSCbTnaACgiMsTakowJQTkyJZFOfroe/YC tWYAoOLOBla8HjNo5b0HR2c/paAXkG0I =Uq3N -----END PGP SIGNATURE----- --nextPart1330499.8yamHWJK84-- From andi@firstfloor.org Thu Jun 10 06:08:26 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-4.3 required=5.0 tests=BAYES_00,J_CHICKENPOX_62, J_CHICKENPOX_63,J_CHICKENPOX_64,J_CHICKENPOX_65,J_CHICKENPOX_73, J_CHICKENPOX_74,LOCAL_GNU_PATCH autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5AB8Ox7070656 for ; Thu, 10 Jun 2010 06:08:26 -0500 X-ASG-Debug-ID: 1276168254-41c602390000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from one.firstfloor.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id D89991D58072 for ; Thu, 10 Jun 2010 04:10:55 -0700 (PDT) Received: from one.firstfloor.org (one.firstfloor.org [213.235.205.2]) by cuda.sgi.com with ESMTP id bEYjSXGiTZ3J28vr for ; Thu, 10 Jun 2010 04:10:55 -0700 (PDT) Received: from basil.firstfloor.org (p5B3CB6DB.dip0.t-ipconnect.de [91.60.182.219]) by one.firstfloor.org (Postfix) with ESMTP id AAA591EE802A; Thu, 10 Jun 2010 13:10:52 +0200 (CEST) Received: by basil.firstfloor.org (Postfix, from userid 1000) id 3DDC5B1A2B; Thu, 10 Jun 2010 13:10:52 +0200 (CEST) From: Andi Kleen References: <20100610110.764742110@firstfloor.org> In-Reply-To: <20100610110.764742110@firstfloor.org> To: xfs@oss.sgi.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org X-ASG-Orig-Subj: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Subject: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Message-Id: <20100610111052.3DDC5B1A2B@basil.firstfloor.org> Date: Thu, 10 Jun 2010 13:10:52 +0200 (CEST) X-Barracuda-Connect: one.firstfloor.org[213.235.205.2] X-Barracuda-Start-Time: 1276168255 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32136 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean For my configuration, that is without quota or RT. Mostly dead code removed I think (but needs additional review) That is there were one or two bad error handling cases, but they were not easily fixable, with comments and I left the warnings in for those for you to remember. e.g. if there is a ENOSPC down in xfs_trans.c while modifying the superblock it would not be handled. Unused statements were mostly related to stub macros for disabled features like QUOTA or RT ALLOC. I replace those with inlines. There were also some problems with variables used in ASSERT() I partly moved those into the ASSERT itself and partly used a new QASSERT that always evaluates. Cc: xfs@oss.sgi.com Signed-off-by: Andi Kleen --- fs/xfs/linux-2.6/xfs_sync.c | 3 +++ fs/xfs/support/debug.h | 4 ++++ fs/xfs/xfs_alloc.c | 10 +++------- fs/xfs/xfs_da_btree.c | 15 +++++---------- fs/xfs/xfs_dir2_block.c | 6 +++--- fs/xfs/xfs_filestream.c | 10 ++-------- fs/xfs/xfs_iget.c | 3 --- fs/xfs/xfs_inode.c | 4 ---- fs/xfs/xfs_inode_item.c | 8 ++------ fs/xfs/xfs_log.c | 2 -- fs/xfs/xfs_quota.h | 14 ++++++++++---- fs/xfs/xfs_trans.c | 1 + 12 files changed, 33 insertions(+), 47 deletions(-) Index: linux-2.6.35-rc2-gcc/fs/xfs/linux-2.6/xfs_sync.c =================================================================== --- linux-2.6.35-rc2-gcc.orig/fs/xfs/linux-2.6/xfs_sync.c +++ linux-2.6.35-rc2-gcc/fs/xfs/linux-2.6/xfs_sync.c @@ -554,6 +554,9 @@ xfs_sync_worker( xfs_log_force(mp, 0); xfs_reclaim_inodes(mp, 0); /* dgc: errors ignored here */ + /* ak: yes and you'll get a warning for it now when you + * upgrade compilers. + */ error = xfs_qm_sync(mp, SYNC_TRYLOCK); if (xfs_log_need_covered(mp)) error = xfs_commit_dummy_trans(mp, 0); Index: linux-2.6.35-rc2-gcc/fs/xfs/xfs_da_btree.c =================================================================== --- linux-2.6.35-rc2-gcc.orig/fs/xfs/xfs_da_btree.c +++ linux-2.6.35-rc2-gcc/fs/xfs/xfs_da_btree.c @@ -581,10 +581,8 @@ xfs_da_node_add(xfs_da_state_t *state, x xfs_da_intnode_t *node; xfs_da_node_entry_t *btree; int tmp; - xfs_mount_t *mp; node = oldblk->bp->data; - mp = state->mp; ASSERT(be16_to_cpu(node->hdr.info.magic) == XFS_DA_NODE_MAGIC); ASSERT((oldblk->index >= 0) && (oldblk->index <= be16_to_cpu(node->hdr.count))); ASSERT(newblk->blkno != 0); @@ -710,8 +708,6 @@ STATIC int xfs_da_root_join(xfs_da_state_t *state, xfs_da_state_blk_t *root_blk) { xfs_da_intnode_t *oldroot; - /* REFERENCED */ - xfs_da_blkinfo_t *blkinfo; xfs_da_args_t *args; xfs_dablk_t child; xfs_dabuf_t *bp; @@ -742,15 +738,14 @@ xfs_da_root_join(xfs_da_state_t *state, if (error) return(error); ASSERT(bp != NULL); - blkinfo = bp->data; if (be16_to_cpu(oldroot->hdr.level) == 1) { - ASSERT(be16_to_cpu(blkinfo->magic) == XFS_DIR2_LEAFN_MAGIC || - be16_to_cpu(blkinfo->magic) == XFS_ATTR_LEAF_MAGIC); + ASSERT(be16_to_cpu(bp->data->magic) == XFS_DIR2_LEAFN_MAGIC || + be16_to_cpu(bp->data->magic) == XFS_ATTR_LEAF_MAGIC); } else { - ASSERT(be16_to_cpu(blkinfo->magic) == XFS_DA_NODE_MAGIC); + ASSERT(be16_to_cpu(bp->data->magic) == XFS_DA_NODE_MAGIC); } - ASSERT(!blkinfo->forw); - ASSERT(!blkinfo->back); + ASSERT(!bp->data->forw); + ASSERT(!bp->data->back); memcpy(root_blk->bp->data, bp->data, state->blocksize); xfs_da_log_buf(args->trans, root_blk->bp, 0, state->blocksize - 1); error = xfs_da_shrink_inode(args, child, bp); Index: linux-2.6.35-rc2-gcc/fs/xfs/xfs_dir2_block.c =================================================================== --- linux-2.6.35-rc2-gcc.orig/fs/xfs/xfs_dir2_block.c +++ linux-2.6.35-rc2-gcc/fs/xfs/xfs_dir2_block.c @@ -1073,10 +1073,10 @@ xfs_dir2_sf_to_block( */ buf_len = dp->i_df.if_bytes; - buf = kmem_alloc(dp->i_df.if_bytes, KM_SLEEP); + buf = kmem_alloc(buf_len, KM_SLEEP); - memcpy(buf, sfp, dp->i_df.if_bytes); - xfs_idata_realloc(dp, -dp->i_df.if_bytes, XFS_DATA_FORK); + memcpy(buf, sfp, buf_len); + xfs_idata_realloc(dp, -buf_len, XFS_DATA_FORK); dp->i_d.di_size = 0; xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE); /* Index: linux-2.6.35-rc2-gcc/fs/xfs/xfs_filestream.c =================================================================== --- linux-2.6.35-rc2-gcc.orig/fs/xfs/xfs_filestream.c +++ linux-2.6.35-rc2-gcc/fs/xfs/xfs_filestream.c @@ -140,9 +140,8 @@ _xfs_filestream_pick_ag( int flags, xfs_extlen_t minlen) { - int streams, max_streams; int err, trylock, nscan; - xfs_extlen_t longest, free, minfree, maxfree = 0; + xfs_extlen_t longest, minfree, maxfree = 0; xfs_agnumber_t ag, max_ag = NULLAGNUMBER; struct xfs_perag *pag; @@ -174,7 +173,6 @@ _xfs_filestream_pick_ag( /* Keep track of the AG with the most free blocks. */ if (pag->pagf_freeblks > maxfree) { maxfree = pag->pagf_freeblks; - max_streams = atomic_read(&pag->pagf_fstrms); max_ag = ag; } @@ -196,8 +194,6 @@ _xfs_filestream_pick_ag( (flags & XFS_PICK_LOWSPACE))) { /* Break out, retaining the reference on the AG. */ - free = pag->pagf_freeblks; - streams = atomic_read(&pag->pagf_fstrms); xfs_perag_put(pag); *agp = ag; break; @@ -234,8 +230,6 @@ next_ag: if (max_ag != NULLAGNUMBER) { xfs_filestream_get_ag(mp, max_ag); TRACE_AG_PICK1(mp, max_ag, maxfree); - streams = max_streams; - free = maxfree; *agp = max_ag; break; } @@ -364,7 +358,7 @@ xfs_fstrm_free_func( /* Drop the reference taken on the AG when the item was added. */ ref = xfs_filestream_put_ag(ip->i_mount, item->ag); - ASSERT(ref >= 0); + QASSERT(ref >= 0); TRACE_FREE(ip->i_mount, ip, item->pip, item->ag, xfs_filestream_peek_ag(ip->i_mount, item->ag)); Index: linux-2.6.35-rc2-gcc/fs/xfs/xfs_iget.c =================================================================== --- linux-2.6.35-rc2-gcc.orig/fs/xfs/xfs_iget.c +++ linux-2.6.35-rc2-gcc/fs/xfs/xfs_iget.c @@ -265,7 +265,6 @@ xfs_iget_cache_miss( { struct xfs_inode *ip; int error; - unsigned long first_index, mask; xfs_agino_t agino = XFS_INO_TO_AGINO(mp, ino); ip = xfs_inode_alloc(mp, ino); @@ -302,8 +301,6 @@ xfs_iget_cache_miss( BUG(); } - mask = ~(((XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_inodelog)) - 1); - first_index = agino & mask; write_lock(&pag->pag_ici_lock); /* insert the new inode */ Index: linux-2.6.35-rc2-gcc/fs/xfs/xfs_inode.c =================================================================== --- linux-2.6.35-rc2-gcc.orig/fs/xfs/xfs_inode.c +++ linux-2.6.35-rc2-gcc/fs/xfs/xfs_inode.c @@ -925,7 +925,6 @@ xfs_iread_extents( int error; xfs_ifork_t *ifp; xfs_extnum_t nextents; - size_t size; if (unlikely(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE)) { XFS_ERROR_REPORT("xfs_iread_extents", XFS_ERRLEVEL_LOW, @@ -933,7 +932,6 @@ xfs_iread_extents( return XFS_ERROR(EFSCORRUPTED); } nextents = XFS_IFORK_NEXTENTS(ip, whichfork); - size = nextents * sizeof(xfs_bmbt_rec_t); ifp = XFS_IFORK_PTR(ip, whichfork); /* @@ -3517,13 +3515,11 @@ xfs_iext_remove_indirect( xfs_extnum_t ext_diff; /* extents to remove in current list */ xfs_extnum_t nex1; /* number of extents before idx */ xfs_extnum_t nex2; /* extents after idx + count */ - int nlists; /* entries in indirection array */ int page_idx = idx; /* index in target extent list */ ASSERT(ifp->if_flags & XFS_IFEXTIREC); erp = xfs_iext_idx_to_irec(ifp, &page_idx, &erp_idx, 0); ASSERT(erp != NULL); - nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ; nex1 = page_idx; ext_cnt = count; while (ext_cnt) { Index: linux-2.6.35-rc2-gcc/fs/xfs/xfs_inode_item.c =================================================================== --- linux-2.6.35-rc2-gcc.orig/fs/xfs/xfs_inode_item.c +++ linux-2.6.35-rc2-gcc/fs/xfs/xfs_inode_item.c @@ -220,7 +220,6 @@ xfs_inode_item_format( xfs_inode_t *ip; size_t data_bytes; xfs_bmbt_rec_t *ext_buffer; - int nrecs; xfs_mount_t *mp; ip = iip->ili_inode; @@ -323,9 +322,8 @@ xfs_inode_item_format( ASSERT(ip->i_df.if_u1.if_extents != NULL); ASSERT(ip->i_d.di_nextents > 0); ASSERT(iip->ili_extents_buf == NULL); - nrecs = ip->i_df.if_bytes / - (uint)sizeof(xfs_bmbt_rec_t); - ASSERT(nrecs > 0); + ASSERT((ip->i_df.if_bytes / + (uint)sizeof(xfs_bmbt_rec_t)) > 0); #ifdef XFS_NATIVE_HOST if (nrecs == ip->i_d.di_nextents) { /* @@ -957,10 +955,8 @@ xfs_iflush_abort( xfs_inode_t *ip) { xfs_inode_log_item_t *iip = ip->i_itemp; - xfs_mount_t *mp; iip = ip->i_itemp; - mp = ip->i_mount; if (iip) { struct xfs_ail *ailp = iip->ili_item.li_ailp; if (iip->ili_item.li_flags & XFS_LI_IN_AIL) { Index: linux-2.6.35-rc2-gcc/fs/xfs/xfs_log.c =================================================================== --- linux-2.6.35-rc2-gcc.orig/fs/xfs/xfs_log.c +++ linux-2.6.35-rc2-gcc/fs/xfs/xfs_log.c @@ -1047,7 +1047,6 @@ xlog_alloc_log(xfs_mount_t *mp, xlog_in_core_t *iclog, *prev_iclog=NULL; xfs_buf_t *bp; int i; - int iclogsize; int error = ENOMEM; uint log2_size = 0; @@ -1127,7 +1126,6 @@ xlog_alloc_log(xfs_mount_t *mp, * with different amounts of memory. See the definition of * xlog_in_core_t in xfs_log_priv.h for details. */ - iclogsize = log->l_iclog_size; ASSERT(log->l_iclog_size >= 4096); for (i=0; i < log->l_iclog_bufs; i++) { *iclogp = kmem_zalloc(sizeof(xlog_in_core_t), KM_MAYFAIL); Index: linux-2.6.35-rc2-gcc/fs/xfs/xfs_quota.h =================================================================== --- linux-2.6.35-rc2-gcc.orig/fs/xfs/xfs_quota.h +++ linux-2.6.35-rc2-gcc/fs/xfs/xfs_quota.h @@ -346,7 +346,13 @@ xfs_qm_vop_dqalloc(struct xfs_inode *ip, #define xfs_trans_mod_dquot_byino(tp, ip, fields, delta) #define xfs_trans_apply_dquot_deltas(tp) #define xfs_trans_unreserve_and_mod_dquots(tp) -#define xfs_trans_reserve_quota_nblks(tp, ip, nblks, ninos, flags) (0) + +static inline int xfs_trans_reserve_quota_nblks(struct xfs_trans *t, + struct xfs_inode *i, long a, long b, uint c) +{ + return 0; +} + #define xfs_trans_reserve_quota_bydquots(tp, mp, u, g, nb, ni, fl) (0) #define xfs_qm_vop_create_dqattach(tp, ip, u, g) #define xfs_qm_vop_rename_dqattach(it) (0) @@ -355,13 +361,13 @@ xfs_qm_vop_dqalloc(struct xfs_inode *ip, #define xfs_qm_dqattach(ip, fl) (0) #define xfs_qm_dqattach_locked(ip, fl) (0) #define xfs_qm_dqdetach(ip) -#define xfs_qm_dqrele(d) +static inline void xfs_qm_dqrele(struct xfs_dquot *d) {} #define xfs_qm_statvfs(ip, s) -#define xfs_qm_sync(mp, fl) (0) +static inline int xfs_qm_sync(struct xfs_mount *m, int i) { return 0; } #define xfs_qm_newmount(mp, a, b) (0) #define xfs_qm_mount_quotas(mp) #define xfs_qm_unmount(mp) -#define xfs_qm_unmount_quotas(mp) (0) +static inline void xfs_qm_unmount_quotas(struct xfs_mount *m) {} #endif /* CONFIG_XFS_QUOTA */ #define xfs_trans_unreserve_quota_nblks(tp, ip, nblks, ninos, flags) \ Index: linux-2.6.35-rc2-gcc/fs/xfs/xfs_trans.c =================================================================== --- linux-2.6.35-rc2-gcc.orig/fs/xfs/xfs_trans.c +++ linux-2.6.35-rc2-gcc/fs/xfs/xfs_trans.c @@ -1120,6 +1120,7 @@ xfs_trans_unreserve_and_mod_sb( error = xfs_mod_incore_sb_batch(tp->t_mountp, msb, (uint)(msbp - msb), rsvd); ASSERT(error == 0); + /* FIXME: need real error handling here, error can be ENOSPC */ } } Index: linux-2.6.35-rc2-gcc/fs/xfs/xfs_alloc.c =================================================================== --- linux-2.6.35-rc2-gcc.orig/fs/xfs/xfs_alloc.c +++ linux-2.6.35-rc2-gcc/fs/xfs/xfs_alloc.c @@ -688,8 +688,6 @@ xfs_alloc_ag_vextent_near( xfs_agblock_t ltbno; /* start bno of left side entry */ xfs_agblock_t ltbnoa; /* aligned ... */ xfs_extlen_t ltdiff; /* difference to left side entry */ - /*REFERENCED*/ - xfs_agblock_t ltend; /* end bno of left side entry */ xfs_extlen_t ltlen; /* length of left side entry */ xfs_extlen_t ltlena; /* aligned ... */ xfs_agblock_t ltnew; /* useful start bno of left side */ @@ -814,8 +812,7 @@ xfs_alloc_ag_vextent_near( if ((error = xfs_alloc_get_rec(cnt_cur, <bno, <len, &i))) goto error0; XFS_WANT_CORRUPTED_GOTO(i == 1, error0); - ltend = ltbno + ltlen; - ASSERT(ltend <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length)); + ASSERT(ltbno + ltlen <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length)); args->len = blen; if (!xfs_alloc_fix_minleft(args)) { xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR); @@ -828,7 +825,7 @@ xfs_alloc_ag_vextent_near( */ args->agbno = bnew; ASSERT(bnew >= ltbno); - ASSERT(bnew + blen <= ltend); + ASSERT(bnew + blen <= ltbno + ltlen); /* * Set up a cursor for the by-bno tree. */ @@ -1157,7 +1154,6 @@ xfs_alloc_ag_vextent_near( /* * Fix up the length and compute the useful address. */ - ltend = ltbno + ltlen; args->len = XFS_EXTLEN_MIN(ltlena, args->maxlen); xfs_alloc_fix_len(args); if (!xfs_alloc_fix_minleft(args)) { @@ -1170,7 +1166,7 @@ xfs_alloc_ag_vextent_near( (void)xfs_alloc_compute_diff(args->agbno, rlen, args->alignment, ltbno, ltlen, <new); ASSERT(ltnew >= ltbno); - ASSERT(ltnew + rlen <= ltend); + ASSERT(ltnew + rlen <= ltbno + ltlen); ASSERT(ltnew + rlen <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length)); args->agbno = ltnew; if ((error = xfs_alloc_fixup_trees(cnt_cur, bno_cur_lt, ltbno, ltlen, Index: linux-2.6.35-rc2-gcc/fs/xfs/support/debug.h =================================================================== --- linux-2.6.35-rc2-gcc.orig/fs/xfs/support/debug.h +++ linux-2.6.35-rc2-gcc/fs/xfs/support/debug.h @@ -37,6 +37,9 @@ extern void assfail(char *expr, char *f, #ifndef DEBUG #define ASSERT(expr) ((void)0) +/* Assert that always evaluates its input to avoid warnings */ +#define QASSERT(expr) ((void)(expr)) + #ifndef STATIC # define STATIC static noinline #endif @@ -45,6 +48,7 @@ extern void assfail(char *expr, char *f, #define ASSERT(expr) \ (unlikely(expr) ? (void)0 : assfail(#expr, __FILE__, __LINE__)) +#define QASSERT(expr) ASSERT(expr) #ifndef STATIC # define STATIC noinline From sandeen@sandeen.net Thu Jun 10 09:55:56 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5AEtt7h079893 for ; Thu, 10 Jun 2010 09:55:56 -0500 X-ASG-Debug-ID: 1276181907-7b9100da0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.sandeen.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 9CFC41E0C29F for ; Thu, 10 Jun 2010 07:58:27 -0700 (PDT) Received: from mail.sandeen.net (64-131-60-146.usfamily.net [64.131.60.146]) by cuda.sgi.com with ESMTP id GYCoFuvuBerqnyTw for ; Thu, 10 Jun 2010 07:58:27 -0700 (PDT) Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sandeen.net (Postfix) with ESMTP id 860F04968903; Thu, 10 Jun 2010 09:58:26 -0500 (CDT) Message-ID: <4C10FD91.4060209@sandeen.net> Date: Thu, 10 Jun 2010 09:58:25 -0500 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.24 (Macintosh/20100228) MIME-Version: 1.0 To: Dave Chinner CC: Michael Tokarev , Linux-kernel , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] Subject: Re: xfs, 2.6.27=>.32 sync write 10 times slowdown [was: xfs, aacraid 2.6.27 => 2.6.32 results in 6 times slowdown] References: <4C0E13A7.20402@msgid.tls.msk.ru> <20100608122919.GC7869@dastard> <4C0EA938.9000104@msgid.tls.msk.ru> <20100608231845.GG7869@dastard> <4C0F3819.4000409@msgid.tls.msk.ru> <20100609074741.GJ7869@dastard> <4C0FE779.8010603@msgid.tls.msk.ru> <20100610004701.GN7869@dastard> In-Reply-To: <20100610004701.GN7869@dastard> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: 64-131-60-146.usfamily.net[64.131.60.146] X-Barracuda-Start-Time: 1276181908 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32152 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Dave Chinner wrote: > On Wed, Jun 09, 2010 at 11:11:53PM +0400, Michael Tokarev wrote: >> The same is with -o osyncisosync (in .34). Actually, >> osyncis[od]sync mount options does not change anything, not >> in .32 nor in .34. > > I think only osyncisosync exists, and it doesn't do anything > anymore. Just to be pedantic, osyncisdsync "exists," but is deprecated and does nothing to change defaults: } else if (!strcmp(this_char, "osyncisdsync")) { /* no-op, this is now the default */ cmn_err(CE_WARN, "XFS: osyncisdsync is now the default, option is deprecated."); } huh, didn't realize that osyncisosync does nothing but set a flag that is never tested other than to show mount options: File Function Line 0 xfs_mount.h 285 #define XFS_MOUNT_OSYNCISOSYNC (1ULL << 13) 1 linux-2.6/xfs_super.c xfs_parseargs 292 mp->m_flags |= XFS_MOUNT_OSYNCISOSYNC; 2 linux-2.6/xfs_super.c xfs_showargs 542 { XFS_MOUNT_OSYNCISOSYNC, "," MNTOPT_OSYNCISOSYNC }, Time to deprecate/remove that one too I guess? -Eric > Cheers, > > Dave. From sandeen@sandeen.net Thu Jun 10 11:25:09 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5AGP9fr084106 for ; Thu, 10 Jun 2010 11:25:09 -0500 X-ASG-Debug-ID: 1276187261-186701a10000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.sandeen.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 9A9573BB139 for ; Thu, 10 Jun 2010 09:27:42 -0700 (PDT) Received: from mail.sandeen.net (64-131-60-146.usfamily.net [64.131.60.146]) by cuda.sgi.com with ESMTP id S5EIkekfwaJKQAua for ; Thu, 10 Jun 2010 09:27:42 -0700 (PDT) Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sandeen.net (Postfix) with ESMTP id 2D3164968903; Thu, 10 Jun 2010 11:27:41 -0500 (CDT) Message-ID: <4C11127C.3030907@sandeen.net> Date: Thu, 10 Jun 2010 11:27:40 -0500 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.24 (Macintosh/20100228) MIME-Version: 1.0 To: Michael Monnerie CC: xfs-oss X-ASG-Orig-Subj: Re: xfs_repair 3.1.2 crashing Subject: Re: xfs_repair 3.1.2 crashing References: <201006101306.07587@zmi.at> In-Reply-To: <201006101306.07587@zmi.at> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: 64-131-60-146.usfamily.net[64.131.60.146] X-Barracuda-Start-Time: 1276187262 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_SC5_SA210e, RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32158 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS 0.00 BSF_SC5_SA210e Custom Rule SA210e X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Michael Monnerie wrote: > Dear devs, I have a massive problem with a filesystem in our internal > server. We've had an overheating problem with the RAID controller CPU, > as it's very hot here and aircondition was turn off... the system "just" > stopped working. This is a XenServer with some Linuxen on it, and one of > them (of course our main server :-) reports this on xfs_repair: > ... > Phase 4 - check for duplicate blocks... > - setting up duplicate extent list... > - check for inodes claiming duplicate blocks... > - agno = 0 > - agno = 2 > - agno = 1 > data fork in regular inode 2267035928 claims used block 537158068 > xfs_repair: dinode.c:2101: process_inode_data_fork: Assertion `err == 0' > failed. > > Any ideas? It'd be great to at least capture the issue by creating an xfs_metadump image for analysis... -Eric > Before that, I had 3.0.3 installed, it found tons of errors before also > crashing. I'll send that log later. From sandeen@sandeen.net Thu Jun 10 11:48:27 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5AGmRKp085003 for ; Thu, 10 Jun 2010 11:48:27 -0500 X-ASG-Debug-ID: 1276188660-331001360000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.sandeen.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id AC9073BB2EF for ; Thu, 10 Jun 2010 09:51:00 -0700 (PDT) Received: from mail.sandeen.net (64-131-60-146.usfamily.net [64.131.60.146]) by cuda.sgi.com with ESMTP id QGI5lUteOATQ4imm for ; Thu, 10 Jun 2010 09:51:00 -0700 (PDT) Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sandeen.net (Postfix) with ESMTP id C8DBD4968903; Thu, 10 Jun 2010 11:50:59 -0500 (CDT) Message-ID: <4C1117F3.2010008@sandeen.net> Date: Thu, 10 Jun 2010 11:50:59 -0500 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.24 (Macintosh/20100228) MIME-Version: 1.0 To: Jan Kara CC: hch@infradead.org, xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 4/8] Add test of quota accounting using fsx Subject: Re: [PATCH 4/8] Add test of quota accounting using fsx References: <1274710459-11446-1-git-send-email-jack@suse.cz> <1274710459-11446-5-git-send-email-jack@suse.cz> <4C0FD43D.3040803@sandeen.net> <20100610105813.GB10827@quack.suse.cz> In-Reply-To: <20100610105813.GB10827@quack.suse.cz> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: 64-131-60-146.usfamily.net[64.131.60.146] X-Barracuda-Start-Time: 1276188660 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32159 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Jan Kara wrote: > On Wed 09-06-10 12:49:49, Eric Sandeen wrote: >> Jan Kara wrote: >>> Run fsx (and also several fsx threads in parallel) and verify that >>> quota accounting is correct after they finish. >> Jan, I'm having trouble with this one on XFS for some reason, with our >> RHEL6 kernel and quota-3.17... >> >> +Disabling group quota enforcement and accounting on /dev/mapper/VolGroup00-testvol2 >> +Disabling user quota enforcement and accounting on /dev/mapper/VolGroup00-testvol2 >> +repquota: Mountpoint (or device) /mnt/testarea/scratch not found or has no quota enabled. >> +repquota: Not all specified mountpoints are using quota. >> +repquota: Mountpoint (or device) /mnt/testarea/scratch not found or has no quota enabled. >> +repquota: Not all specified mountpoints are using quota. >> >> ... >> >> however if I remove the quotaon calls (off / on settings) in check_usage() >> then it works: >> >> check_usage() >> { >> # quotaon -f -u -g $SCRATCH_MNT 2>/dev/null >> repquota -u -g $SCRATCH_MNT | grep -v "^root" | filter_scratch \ >> >$tmp.orig >> quotacheck -u -g $SCRATCH_MNT 2>/dev/null >> repquota -u -g $SCRATCH_MNT | grep -v "^root" | filter_scratch \ >> >$tmp.checked >> # quotaon -u -g $SCRATCH_MNT 2>/dev/null >> diff $tmp.orig $tmp.checked >> } >> >> >> Seems like 2 issues: noisy disable messages, and repquota failing when disabled. > I've fixed noisy disable messages in quotaon (without -v flag only errors > should be printed) in CVS. Ok, we should probably just add a filter for these so that it'll work on older versions. > With repquota & disabled quotas it's a bit more > complicated. Hm I'm still woefully unfamiliar with quota intricacies. It seems that after quotaon -f, repquota fails on xfs but works for ext*? Not sure if that's intended... Also is there a reason to disable quota before repquota? Is disable/enable around quotacheck enough? Hm on ext* I'm also getting differences from the expected output; I suspect due to selinux xattrs. I'll try to get that fixed up. > The problem is that for ext?, reiserfs,... you have to disable > quotas before running quotacheck. Also quotacheck is NOP for XFS - we'd > rather need to call something to really recompute quota usage for XFS. How > that can be done? It's regenerated at mount time if needed. I don't know that we have a method to force this recalculation... I guess mounting with quotas disabled, unmounting, then mounting again w/ quotas on will do it. Thanks, -Eric > Honza From sgi-linux-xfs@lo.gmane.org Thu Jun 10 12:47:40 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_27 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5AHlcT1087347 for ; Thu, 10 Jun 2010 12:47:40 -0500 X-ASG-Debug-ID: 1276192206-3319028a0000-w1Z2WR X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from lo.gmane.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 08CC33BB7E9 for ; Thu, 10 Jun 2010 10:50:07 -0700 (PDT) Received: from lo.gmane.org (lo.gmane.org [80.91.229.12]) by cuda.sgi.com with ESMTP id 1AkXajDkGTLdPbXK for ; Thu, 10 Jun 2010 10:50:07 -0700 (PDT) Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1OMltE-0007Ol-P0 for linux-xfs@oss.sgi.com; Thu, 10 Jun 2010 19:50:04 +0200 Received: from barriere.frankfurter-softwarefabrik.de ([217.11.197.1]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 10 Jun 2010 19:50:04 +0200 Received: from niemayer by barriere.frankfurter-softwarefabrik.de with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 10 Jun 2010 19:50:04 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: linux-xfs@oss.sgi.com connect(): No such file or directory From: Peter Niemayer X-ASG-Orig-Subj: linux-2.6.34 xfs crash: xfs_inode_ag_iterator+0x6c - NULL pointer dereference Subject: linux-2.6.34 xfs crash: xfs_inode_ag_iterator+0x6c - NULL pointer dereference Date: Thu, 10 Jun 2010 19:45:01 +0200 Lines: 4688 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="------------000102000906050609040100" X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: barriere.frankfurter-softwarefabrik.de User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 X-Barracuda-Connect: lo.gmane.org[80.91.229.12] X-Barracuda-Start-Time: 1276192209 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32163 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean This is a multi-part message in MIME format. --------------000102000906050609040100 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Hi, FYI: attached screen-shot is from a server that crashed today when doing an "umount" of a no longer needed XFS partition on a SSD (mount options: rw,noatime,nodiratime,nobarrier) (The operations on that filesystem ended > 1 day before the umount, and did not show any problem) Kernel was plain vanilla 2.6.34. 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(8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5AKixaX094860 for ; Thu, 10 Jun 2010 15:44:59 -0500 X-ASG-Debug-ID: 1276202625-566201c20000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.sandeen.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id F000F3BC627 for ; Thu, 10 Jun 2010 13:43:45 -0700 (PDT) Received: from mail.sandeen.net (64-131-60-146.usfamily.net [64.131.60.146]) by cuda.sgi.com with ESMTP id SRn3NvjpVHmba57b for ; Thu, 10 Jun 2010 13:43:45 -0700 (PDT) Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sandeen.net (Postfix) with ESMTP id DB2024968903; Thu, 10 Jun 2010 15:43:44 -0500 (CDT) Message-ID: <4C114E80.4050803@sandeen.net> Date: Thu, 10 Jun 2010 15:43:44 -0500 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.24 (Macintosh/20100228) MIME-Version: 1.0 To: Jan Kara CC: hch@infradead.org, xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 4/8] Add test of quota accounting using fsx Subject: Re: [PATCH 4/8] Add test of quota accounting using fsx References: <1274710459-11446-1-git-send-email-jack@suse.cz> <1274710459-11446-5-git-send-email-jack@suse.cz> <4C0FD43D.3040803@sandeen.net> <20100610105813.GB10827@quack.suse.cz> <4C1117F3.2010008@sandeen.net> In-Reply-To: <4C1117F3.2010008@sandeen.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: 64-131-60-146.usfamily.net[64.131.60.146] X-Barracuda-Start-Time: 1276202625 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32173 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Eric Sandeen wrote: > Jan Kara wrote: >> On Wed 09-06-10 12:49:49, Eric Sandeen wrote: >>> Jan Kara wrote: >>>> Run fsx (and also several fsx threads in parallel) and verify that >>>> quota accounting is correct after they finish. >>> Jan, I'm having trouble with this one on XFS for some reason, with our >>> RHEL6 kernel and quota-3.17... These don't seem to be working properly at all with xfs. In quota-3.17, quotaoff seems to turn off both accounting and enforcement, despite what the man page says - To turn off quota limit enforcement on any XFS filesystem, first make sure that quota accounting and enforcement are both turned on using repquota -v filesystem. Then, use quotaoff -v filesystem to disable limit enforce- ment. This may be done while the filesystem is mounted. And once accounting is turned off, it can't be re-enabled without a remount. With quota-4.0.0-preX, it seems to turn off -neither- accounting nor enforcement, based on hch's test: [14:59] qemu1:~/xfstests-dev# mount -o quota /dev/vdb5 /mnt/test [14:59] qemu1:~/xfstests-dev# quotaon -f /dev/vdb5 [15:00] qemu1:~/xfstests-dev# quotaon /dev/vdb5 [15:00] quotaon: Enable XFS group quota accounting during mount [15:00] quotaon: Enforcing user quota already on /dev/vdb5 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Argh ;) -Eric From tao.ma@oracle.com Fri Jun 11 01:00:56 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-4.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_66, LOCAL_GNU_PATCH,UNPARSEABLE_RELAY autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5B60tji120869 for ; Fri, 11 Jun 2010 01:00:55 -0500 X-ASG-Debug-ID: 1276236208-1ebe01e10000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from rcsinet10.oracle.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 5AD383BD9DF; Thu, 10 Jun 2010 23:03:28 -0700 (PDT) Received: from rcsinet10.oracle.com (rcsinet10.oracle.com [148.87.113.121]) by cuda.sgi.com with ESMTP id 94yJKNFBMyFM1DxX; Thu, 10 Jun 2010 23:03:28 -0700 (PDT) Received: from acsinet15.oracle.com (acsinet15.oracle.com [141.146.126.227]) by rcsinet10.oracle.com (Switch-3.4.2/Switch-3.4.1) with ESMTP id o5B637hh005387 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 11 Jun 2010 06:03:09 GMT Received: from acsmt354.oracle.com (acsmt354.oracle.com [141.146.40.154]) by acsinet15.oracle.com (Switch-3.4.2/Switch-3.4.1) with ESMTP id o5B3n0hx015853; Fri, 11 Jun 2010 06:03:04 GMT Received: from abhmt010.oracle.com by acsmt355.oracle.com with ESMTP id 316311661276236157; Thu, 10 Jun 2010 23:02:37 -0700 Received: from localhost.localdomain (/10.182.120.191) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 10 Jun 2010 23:02:36 -0700 From: Tao Ma To: xfs@oss.sgi.com Cc: linux-kernel@vger.kernel.org, Tao Ma , Alex Elder , Christoph Hellwig , Dave Chinner X-ASG-Orig-Subj: [PATCH] xfs: Make fiemap works with sparse file. Subject: [PATCH] xfs: Make fiemap works with sparse file. Date: Fri, 11 Jun 2010 14:02:15 +0800 Message-Id: <1276236135-12051-1-git-send-email-tao.ma@oracle.com> X-Mailer: git-send-email 1.7.0.4 X-Auth-Type: Internal IP X-Source-IP: acsinet15.oracle.com [141.146.126.227] X-CT-RefId: str=0001.0A090204.4C11D19E.009E:SCFMA922111,ss=1,fgs=0 X-Barracuda-Connect: rcsinet10.oracle.com[148.87.113.121] X-Barracuda-Start-Time: 1276236209 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32210 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean In xfs_vn_fiemap, we set bvm_count to fi_extent_max + 1 and want to return fi_extent_max extents, but actually it won't work for a sparse file. The reason is that in xfs_getbmap we will calculate holes and set it in 'out', while out is malloced by bmv_count(fi_extent_max+1) which didn't consider holes. So in the worst case, if 'out' vector looks like [hole, extent, hole, extent, hole, ... hole, extent, hole], we will only return half of fi_extent_max extents. So in xfs_vn_fiemap, we should consider this worst case. If the user wants fi_extent_max extents, we need a 'out' with size of 2 *fi_extent_max + 1. Cc: Alex Elder Cc: Christoph Hellwig Cc: Dave Chinner Signed-off-by: Tao Ma --- fs/xfs/linux-2.6/xfs_iops.c | 16 ++++++++++++++-- 1 files changed, 14 insertions(+), 2 deletions(-) diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c index 9c8019c..1db92e3 100644 --- a/fs/xfs/linux-2.6/xfs_iops.c +++ b/fs/xfs/linux-2.6/xfs_iops.c @@ -672,9 +672,21 @@ xfs_vn_fiemap( else bm.bmv_length = BTOBB(length); - /* We add one because in getbmap world count includes the header */ + /* + * It is a bit tricky for us to calculate the bmv_count from + * fi_extent_max. + * If we support to return fi_extent_max extents to the user, + * we need at most 2 * fi_extent_max + 1 for bmv_count since + * in xfs_getbmap we will calculate holes while fi_extent_max + * don't have them. So in the worst case, bmv can looks like + * [hole, extent, hole, extent, hole, ... hole, extent, hole]. + * So there will be 2 *fi_extent_max + 1. + * What's more, in getbmap world count have to include the + * header, so we need another bmv. So the total number will + * be 2 * fieinfo->fi_extents_max + 2. + */ bm.bmv_count = !fieinfo->fi_extents_max ? MAXEXTNUM : - fieinfo->fi_extents_max + 1; + 2 * fieinfo->fi_extents_max + 2; bm.bmv_count = min_t(__s32, bm.bmv_count, (PAGE_SIZE * 16 / sizeof(struct getbmapx))); bm.bmv_iflags = BMV_IF_PREALLOC; -- 1.5.5 From sandeen@sandeen.net Fri Jun 11 10:51:17 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_66 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5BFpH6o144740 for ; Fri, 11 Jun 2010 10:51:17 -0500 X-ASG-Debug-ID: 1276271630-1f4d034b0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.sandeen.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 3F9283BF314 for ; Fri, 11 Jun 2010 08:53:51 -0700 (PDT) Received: from mail.sandeen.net (64-131-60-146.usfamily.net [64.131.60.146]) by cuda.sgi.com with ESMTP id 9HBYgAbMIC7fL0Jt for ; Fri, 11 Jun 2010 08:53:51 -0700 (PDT) Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sandeen.net (Postfix) with ESMTP id 346EA42B9C5D; Fri, 11 Jun 2010 10:53:50 -0500 (CDT) Message-ID: <4C125C0D.4080600@sandeen.net> Date: Fri, 11 Jun 2010 10:53:49 -0500 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.24 (Macintosh/20100228) MIME-Version: 1.0 To: Tao Ma CC: xfs@oss.sgi.com, Christoph Hellwig , linux-kernel@vger.kernel.org, Alex Elder X-ASG-Orig-Subj: Re: [PATCH] xfs: Make fiemap works with sparse file. Subject: Re: [PATCH] xfs: Make fiemap works with sparse file. References: <1276236135-12051-1-git-send-email-tao.ma@oracle.com> In-Reply-To: <1276236135-12051-1-git-send-email-tao.ma@oracle.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: 64-131-60-146.usfamily.net[64.131.60.146] X-Barracuda-Start-Time: 1276271631 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32250 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Tao Ma wrote: > In xfs_vn_fiemap, we set bvm_count to fi_extent_max + 1 and want > to return fi_extent_max extents, but actually it won't work for > a sparse file. The reason is that in xfs_getbmap we will > calculate holes and set it in 'out', while out is malloced by > bmv_count(fi_extent_max+1) which didn't consider holes. So in the > worst case, if 'out' vector looks like > [hole, extent, hole, extent, hole, ... hole, extent, hole], > we will only return half of fi_extent_max extents. > > So in xfs_vn_fiemap, we should consider this worst case. If the > user wants fi_extent_max extents, we need a 'out' with size of > 2 *fi_extent_max + 1. This all seems right to me, though your commit message above (+1) doesn't match the comment and code in the patch (+2) -Eric > Cc: Alex Elder > Cc: Christoph Hellwig > Cc: Dave Chinner > Signed-off-by: Tao Ma > --- > fs/xfs/linux-2.6/xfs_iops.c | 16 ++++++++++++++-- > 1 files changed, 14 insertions(+), 2 deletions(-) > > diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c > index 9c8019c..1db92e3 100644 > --- a/fs/xfs/linux-2.6/xfs_iops.c > +++ b/fs/xfs/linux-2.6/xfs_iops.c > @@ -672,9 +672,21 @@ xfs_vn_fiemap( > else > bm.bmv_length = BTOBB(length); > > - /* We add one because in getbmap world count includes the header */ > + /* > + * It is a bit tricky for us to calculate the bmv_count from > + * fi_extent_max. > + * If we support to return fi_extent_max extents to the user, > + * we need at most 2 * fi_extent_max + 1 for bmv_count since > + * in xfs_getbmap we will calculate holes while fi_extent_max > + * don't have them. So in the worst case, bmv can looks like > + * [hole, extent, hole, extent, hole, ... hole, extent, hole]. > + * So there will be 2 *fi_extent_max + 1. > + * What's more, in getbmap world count have to include the > + * header, so we need another bmv. So the total number will > + * be 2 * fieinfo->fi_extents_max + 2. > + */ > bm.bmv_count = !fieinfo->fi_extents_max ? MAXEXTNUM : > - fieinfo->fi_extents_max + 1; > + 2 * fieinfo->fi_extents_max + 2; > bm.bmv_count = min_t(__s32, bm.bmv_count, > (PAGE_SIZE * 16 / sizeof(struct getbmapx))); > bm.bmv_iflags = BMV_IF_PREALLOC; From BATV+476d4bb3db500d7e78e8+2483+infradead.org+hch@bombadil.srs.infradead.org Fri Jun 11 11:12:39 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5BGCaFC145649 for ; Fri, 11 Jun 2010 11:12:39 -0500 X-ASG-Debug-ID: 1276272910-1f55038a0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id AC8FA3BF87F for ; Fri, 11 Jun 2010 09:15:10 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id p98sp1QdvpqEUOZZ for ; Fri, 11 Jun 2010 09:15:10 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1ON6st-00062q-Lw for xfs@oss.sgi.com; Fri, 11 Jun 2010 16:15:10 +0000 Message-Id: <20100611161312.446670249@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Fri, 11 Jun 2010 12:13:12 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH 0/3] simplify the writeback code Subject: [PATCH 0/3] simplify the writeback code X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1276272910 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean The writeback path has a lot of code that's been dead for a while. We're never asked to release dirty and thus delayed allocated or unwritten pages from ->releasepage, and since the introduction of ->page_mkwrite we also don't have to deal with dirty but unmapped buffers in ->writepage. But there's a case masquerading as such, which needs to be fixed by a 1.5 years old patch from Eric first. That patch also happens to fix xfstests 194. From BATV+476d4bb3db500d7e78e8+2483+infradead.org+hch@bombadil.srs.infradead.org Fri Jun 11 11:12:39 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5BGCbMf145657 for ; Fri, 11 Jun 2010 11:12:39 -0500 X-ASG-Debug-ID: 1276272911-1f4e03970000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 19AFB3BF87F for ; Fri, 11 Jun 2010 09:15:11 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id 6jg2TdQUTXN7RpNZ for ; Fri, 11 Jun 2010 09:15:11 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1ON6sw-00064W-ES; Fri, 11 Jun 2010 16:15:11 +0000 Message-Id: <20100611161510.303551652@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Fri, 11 Jun 2010 12:13:13 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com Cc: Eric Sandeen X-ASG-Orig-Subj: [PATCH 1/3] xfs: fix corruption case for block size < page size Subject: [PATCH 1/3] xfs: fix corruption case for block size < page size References: <20100611161312.446670249@bombadil.infradead.org> Content-Disposition: inline; filename=xfs-fix-194 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1276272912 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Eric Sandeen xfstests 194 first truncats a file back and then extends it again by truncating it to a larger size. This causes discard_buffer to drop the mapped, but not the uptodate bit and thus creates something that xfs_page_state_convert takes for unmapped space created by mmap because it doesn't check for the dirty bit, which also gets cleared by discard_buffer and checked by other ->writepage implementations like block_write_full_page. Handle this kind of buffers early, and unlike Eric's first version of the patch simply ASSERT that the buffers is dirty, given that the mmap write case can't happen anymore since the introduction of ->page_mkwrite. The now dead code dealing with that will be deleted in a follow on patch. Signed-off-by: Eric Sandeen Signed-off-by: Christoph Hellwig Index: xfs/fs/xfs/linux-2.6/xfs_aops.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_aops.c 2010-06-10 08:59:49.598004335 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_aops.c 2010-06-11 09:20:31.292254712 +0200 @@ -1125,6 +1125,16 @@ xfs_page_state_convert( continue; } + /* + * A hole may still be marked uptodate because discard_buffer + * leaves the flag set. + */ + if (!buffer_mapped(bh) && buffer_uptodate(bh)) { + ASSERT(!buffer_dirty(bh)); + imap_valid = 0; + continue; + } + if (imap_valid) imap_valid = xfs_imap_valid(inode, &imap, offset); From BATV+476d4bb3db500d7e78e8+2483+infradead.org+hch@bombadil.srs.infradead.org Fri Jun 11 11:12:41 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-4.9 required=5.0 tests=BAYES_00,LOCAL_GNU_PATCH autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5BGCfHc145683 for ; Fri, 11 Jun 2010 11:12:41 -0500 X-ASG-Debug-ID: 1276273106-65a301bf0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 82389159483D for ; Fri, 11 Jun 2010 09:18:26 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id bm6PSBENprNvY5HM for ; Fri, 11 Jun 2010 09:18:26 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1ON6sx-00065X-UV for xfs@oss.sgi.com; Fri, 11 Jun 2010 16:15:12 +0000 Message-Id: <20100611161511.791495868@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Fri, 11 Jun 2010 12:13:14 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH 2/3] xfs: simplify xfs_vm_releasepage Subject: [PATCH 2/3] xfs: simplify xfs_vm_releasepage References: <20100611161312.446670249@bombadil.infradead.org> Content-Disposition: inline; filename=xfs-simplify-releasepage X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1276273107 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Currently the xfs releasepage implementation has code to deal with converting delayed allocated and unwritten space. But we never get called for those as we always convert delayed and unwritten space when cleaning a page, or drop the state from the buffers in block_invalidatepage. We still keep a WARN_ON on those cases for now, but remove all the case dealing with it, which allows to fold xfs_page_state_convert into xfs_vm_writepage and remove the !startio case from the whole writeback path. Signed-off-by: Christoph Hellwig Index: xfs/fs/xfs/linux-2.6/xfs_aops.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_aops.c 2010-06-11 09:22:13.864253873 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_aops.c 2010-06-11 09:27:27.602003840 +0200 @@ -754,7 +754,6 @@ xfs_convert_page( struct xfs_bmbt_irec *imap, xfs_ioend_t **ioendp, struct writeback_control *wbc, - int startio, int all_bh) { struct buffer_head *bh, *head; @@ -825,19 +824,14 @@ xfs_convert_page( ASSERT(imap->br_startblock != DELAYSTARTBLOCK); xfs_map_at_offset(inode, bh, imap, offset); - if (startio) { - xfs_add_to_ioend(inode, bh, offset, - type, ioendp, done); - } else { - set_buffer_dirty(bh); - unlock_buffer(bh); - mark_buffer_dirty(bh); - } + xfs_add_to_ioend(inode, bh, offset, type, + ioendp, done); + page_dirty--; count++; } else { type = IO_NEW; - if (buffer_mapped(bh) && all_bh && startio) { + if (buffer_mapped(bh) && all_bh) { lock_buffer(bh); xfs_add_to_ioend(inode, bh, offset, type, ioendp, done); @@ -852,14 +846,12 @@ xfs_convert_page( if (uptodate && bh == head) SetPageUptodate(page); - if (startio) { - if (count) { - wbc->nr_to_write--; - if (wbc->nr_to_write <= 0) - done = 1; - } - xfs_start_page_writeback(page, !page_dirty, count); + if (count) { + wbc->nr_to_write--; + if (wbc->nr_to_write <= 0) + done = 1; } + xfs_start_page_writeback(page, !page_dirty, count); return done; fail_unlock_page: @@ -879,7 +871,6 @@ xfs_cluster_write( struct xfs_bmbt_irec *imap, xfs_ioend_t **ioendp, struct writeback_control *wbc, - int startio, int all_bh, pgoff_t tlast) { @@ -895,7 +886,7 @@ xfs_cluster_write( for (i = 0; i < pagevec_count(&pvec); i++) { done = xfs_convert_page(inode, pvec.pages[i], tindex++, - imap, ioendp, wbc, startio, all_bh); + imap, ioendp, wbc, all_bh); if (done) break; } @@ -1025,51 +1016,101 @@ out_invalidate: } /* - * Calling this without startio set means we are being asked to make a dirty - * page ready for freeing it's buffers. When called with startio set then - * we are coming from writepage. + * Write out a dirty page. * - * When called with startio set it is important that we write the WHOLE - * page if possible. - * The bh->b_state's cannot know if any of the blocks or which block for - * that matter are dirty due to mmap writes, and therefore bh uptodate is - * only valid if the page itself isn't completely uptodate. Some layers - * may clear the page dirty flag prior to calling write page, under the - * assumption the entire page will be written out; by not writing out the - * whole page the page can be reused before all valid dirty data is - * written out. Note: in the case of a page that has been dirty'd by - * mapwrite and but partially setup by block_prepare_write the - * bh->b_states's will not agree and only ones setup by BPW/BCW will have - * valid state, thus the whole page must be written out thing. + * For delalloc space on the page we need to allocate space and flush it. + * For unwritten space on the page we need to start the conversion to + * regular allocated space. + * For unmapped buffer heads on the page we should allocate space if the + * page is uptodate. + * For any other dirty buffer heads on the page we should flush them. + * + * If we detect that a transaction would be required to flush the page, we + * have to check the process flags first, if we are already in a transaction + * or disk I/O during allocations is off, we need to fail the writepage and + * redirty the page. + * + * The bh->b_state's cannot know if any of the blocks or which block for that + * matter are dirty due to mmap writes, and therefore bh uptodate is only + * valid if the page itself isn't completely uptodate. */ - STATIC int -xfs_page_state_convert( - struct inode *inode, - struct page *page, - struct writeback_control *wbc, - int startio, - int unmapped) /* also implies page uptodate */ +xfs_vm_writepage( + struct page *page, + struct writeback_control *wbc) { + struct inode *inode = page->mapping->host; + int need_trans; + int delalloc, unmapped, unwritten; struct buffer_head *bh, *head; struct xfs_bmbt_irec imap; xfs_ioend_t *ioend = NULL, *iohead = NULL; loff_t offset; - unsigned long p_offset = 0; unsigned int type; __uint64_t end_offset; pgoff_t end_index, last_index; ssize_t size, len; int flags, err, imap_valid = 0, uptodate = 1; - int page_dirty, count = 0; - int trylock = 0; - int all_bh = unmapped; - - if (startio) { - if (wbc->sync_mode == WB_SYNC_NONE && wbc->nonblocking) - trylock |= BMAPI_TRYLOCK; + int count = 0; + int all_bh; + + trace_xfs_writepage(inode, page, 0); + + /* + * Refuse to write the page out if we are called from reclaim context. + * + * This is primarily to avoid stack overflows when called from deep + * used stacks in random callers for direct reclaim, but disabling + * reclaim for kswap is a nice side-effect as kswapd causes rather + * suboptimal I/O patters, too. + * + * This should really be done by the core VM, but until that happens + * filesystems like XFS, btrfs and ext4 have to take care of this + * by themselves. + */ + if (current->flags & PF_MEMALLOC) + goto out_fail; + + /* + * We need a transaction if: + * 1. There are delalloc buffers on the page + * 2. The page is uptodate and we have unmapped buffers + * 3. The page is uptodate and we have no buffers + * 4. There are unwritten buffers on the page + */ + if (!page_has_buffers(page)) { + unmapped = 1; + need_trans = 1; + } else { + xfs_count_page_state(page, &delalloc, &unmapped, &unwritten); + if (!PageUptodate(page)) + unmapped = 0; + need_trans = delalloc + unmapped + unwritten; } + /* + * If we need a transaction and the process flags say + * we are already in a transaction, or no IO is allowed + * then mark the page dirty again and leave the page + * as is. + */ + if (current_test_flags(PF_FSTRANS) && need_trans) + goto out_fail; + + /* + * Delay hooking up buffer heads until we have + * made our go/no-go decision. + */ + if (!page_has_buffers(page)) + create_empty_buffers(page, 1 << inode->i_blkbits, 0); + + /* + * VM calculation for nr_to_write seems off. Bump it way + * up, this gets simple streaming writes zippy again. + * To be reviewed again after Jens' writeback changes. + */ + wbc->nr_to_write *= 4; + /* Is this page beyond the end of the file? */ offset = i_size_read(inode); end_index = offset >> PAGE_CACHE_SHIFT; @@ -1077,53 +1118,27 @@ xfs_page_state_convert( if (page->index >= end_index) { if ((page->index >= end_index + 1) || !(i_size_read(inode) & (PAGE_CACHE_SIZE - 1))) { - if (startio) - unlock_page(page); + unlock_page(page); return 0; } } - /* - * page_dirty is initially a count of buffers on the page before - * EOF and is decremented as we move each into a cleanable state. - * - * Derivation: - * - * End offset is the highest offset that this page should represent. - * If we are on the last page, (end_offset & (PAGE_CACHE_SIZE - 1)) - * will evaluate non-zero and be less than PAGE_CACHE_SIZE and - * hence give us the correct page_dirty count. On any other page, - * it will be zero and in that case we need page_dirty to be the - * count of buffers on the page. - */ end_offset = min_t(unsigned long long, (xfs_off_t)(page->index + 1) << PAGE_CACHE_SHIFT, offset); len = 1 << inode->i_blkbits; - p_offset = min_t(unsigned long, end_offset & (PAGE_CACHE_SIZE - 1), - PAGE_CACHE_SIZE); - p_offset = p_offset ? roundup(p_offset, len) : PAGE_CACHE_SIZE; - page_dirty = p_offset / len; bh = head = page_buffers(page); offset = page_offset(page); flags = BMAPI_READ; type = IO_NEW; - /* TODO: cleanup count and page_dirty */ + all_bh = unmapped; do { if (offset >= end_offset) break; if (!buffer_uptodate(bh)) uptodate = 0; - if (!(PageUptodate(page) || buffer_uptodate(bh)) && !startio) { - /* - * the iomap is actually still valid, but the ioend - * isn't. shouldn't happen too often. - */ - imap_valid = 0; - continue; - } /* * A hole may still be marked uptodate because discard_buffer @@ -1150,7 +1165,7 @@ xfs_page_state_convert( */ if (buffer_unwritten(bh) || buffer_delay(bh) || ((buffer_uptodate(bh) || PageUptodate(page)) && - !buffer_mapped(bh) && (unmapped || startio))) { + !buffer_mapped(bh))) { int new_ioend = 0; /* @@ -1164,7 +1179,11 @@ xfs_page_state_convert( flags = BMAPI_WRITE | BMAPI_IGNSTATE; } else if (buffer_delay(bh)) { type = IO_DELAY; - flags = BMAPI_ALLOCATE | trylock; + flags = BMAPI_ALLOCATE; + + if (wbc->sync_mode == WB_SYNC_NONE && + wbc->nonblocking) + flags |= BMAPI_TRYLOCK; } else { type = IO_NEW; flags = BMAPI_WRITE | BMAPI_MMAP; @@ -1196,19 +1215,11 @@ xfs_page_state_convert( } if (imap_valid) { xfs_map_at_offset(inode, bh, &imap, offset); - if (startio) { - xfs_add_to_ioend(inode, bh, offset, - type, &ioend, - new_ioend); - } else { - set_buffer_dirty(bh); - unlock_buffer(bh); - mark_buffer_dirty(bh); - } - page_dirty--; + xfs_add_to_ioend(inode, bh, offset, type, + &ioend, new_ioend); count++; } - } else if (buffer_uptodate(bh) && startio) { + } else if (buffer_uptodate(bh)) { /* * we got here because the buffer is already mapped. * That means it must already have extents allocated @@ -1241,13 +1252,11 @@ xfs_page_state_convert( all_bh = 1; xfs_add_to_ioend(inode, bh, offset, type, &ioend, !imap_valid); - page_dirty--; count++; } else { imap_valid = 0; } - } else if ((buffer_uptodate(bh) || PageUptodate(page)) && - (unmapped || startio)) { + } else if (PageUptodate(page)) { imap_valid = 0; } @@ -1259,8 +1268,7 @@ xfs_page_state_convert( if (uptodate && bh == head) SetPageUptodate(page); - if (startio) - xfs_start_page_writeback(page, 1, count); + xfs_start_page_writeback(page, 1, count); if (ioend && imap_valid) { xfs_off_t end_index; @@ -1278,139 +1286,28 @@ xfs_page_state_convert( end_index = last_index; xfs_cluster_write(inode, page->index + 1, &imap, &ioend, - wbc, startio, all_bh, end_index); + wbc, all_bh, end_index); } if (iohead) xfs_submit_ioend(wbc, iohead); - return page_dirty; + return 0; error: if (iohead) xfs_cancel_ioend(iohead); - /* - * If it's delalloc and we have nowhere to put it, - * throw it away, unless the lower layers told - * us to try again. - */ - if (err != -EAGAIN) { - if (!unmapped) - xfs_aops_discard_page(page); - ClearPageUptodate(page); - } + if (!unmapped) + xfs_aops_discard_page(page); + ClearPageUptodate(page); + unlock_page(page); return err; -} - -/* - * writepage: Called from one of two places: - * - * 1. we are flushing a delalloc buffer head. - * - * 2. we are writing out a dirty page. Typically the page dirty - * state is cleared before we get here. In this case is it - * conceivable we have no buffer heads. - * - * For delalloc space on the page we need to allocate space and - * flush it. For unmapped buffer heads on the page we should - * allocate space if the page is uptodate. For any other dirty - * buffer heads on the page we should flush them. - * - * If we detect that a transaction would be required to flush - * the page, we have to check the process flags first, if we - * are already in a transaction or disk I/O during allocations - * is off, we need to fail the writepage and redirty the page. - */ - -STATIC int -xfs_vm_writepage( - struct page *page, - struct writeback_control *wbc) -{ - int error; - int need_trans; - int delalloc, unmapped, unwritten; - struct inode *inode = page->mapping->host; - - trace_xfs_writepage(inode, page, 0); - - /* - * Refuse to write the page out if we are called from reclaim context. - * - * This is primarily to avoid stack overflows when called from deep - * used stacks in random callers for direct reclaim, but disabling - * reclaim for kswap is a nice side-effect as kswapd causes rather - * suboptimal I/O patters, too. - * - * This should really be done by the core VM, but until that happens - * filesystems like XFS, btrfs and ext4 have to take care of this - * by themselves. - */ - if (current->flags & PF_MEMALLOC) - goto out_fail; - - /* - * We need a transaction if: - * 1. There are delalloc buffers on the page - * 2. The page is uptodate and we have unmapped buffers - * 3. The page is uptodate and we have no buffers - * 4. There are unwritten buffers on the page - */ - - if (!page_has_buffers(page)) { - unmapped = 1; - need_trans = 1; - } else { - xfs_count_page_state(page, &delalloc, &unmapped, &unwritten); - if (!PageUptodate(page)) - unmapped = 0; - need_trans = delalloc + unmapped + unwritten; - } - - /* - * If we need a transaction and the process flags say - * we are already in a transaction, or no IO is allowed - * then mark the page dirty again and leave the page - * as is. - */ - if (current_test_flags(PF_FSTRANS) && need_trans) - goto out_fail; - - /* - * Delay hooking up buffer heads until we have - * made our go/no-go decision. - */ - if (!page_has_buffers(page)) - create_empty_buffers(page, 1 << inode->i_blkbits, 0); - - - /* - * VM calculation for nr_to_write seems off. Bump it way - * up, this gets simple streaming writes zippy again. - * To be reviewed again after Jens' writeback changes. - */ - wbc->nr_to_write *= 4; - - /* - * Convert delayed allocate, unwritten or unmapped space - * to real space and flush out to disk. - */ - error = xfs_page_state_convert(inode, page, wbc, 1, unmapped); - if (error == -EAGAIN) - goto out_fail; - if (unlikely(error < 0)) - goto out_unlock; - - return 0; out_fail: redirty_page_for_writepage(wbc, page); unlock_page(page); return 0; -out_unlock: - unlock_page(page); - return error; } STATIC int @@ -1424,65 +1321,27 @@ xfs_vm_writepages( /* * Called to move a page into cleanable state - and from there - * to be released. Possibly the page is already clean. We always + * to be released. The page should already be clean. We always * have buffer heads in this call. * - * Returns 0 if the page is ok to release, 1 otherwise. - * - * Possible scenarios are: - * - * 1. We are being called to release a page which has been written - * to via regular I/O. buffer heads will be dirty and possibly - * delalloc. If no delalloc buffer heads in this case then we - * can just return zero. - * - * 2. We are called to release a page which has been written via - * mmap, all we need to do is ensure there is no delalloc - * state in the buffer heads, if not we can let the caller - * free them and we should come back later via writepage. + * Returns 1 if the page is ok to release, 0 otherwise. */ STATIC int xfs_vm_releasepage( struct page *page, gfp_t gfp_mask) { - struct inode *inode = page->mapping->host; - int dirty, delalloc, unmapped, unwritten; - struct writeback_control wbc = { - .sync_mode = WB_SYNC_ALL, - .nr_to_write = 1, - }; - - trace_xfs_releasepage(inode, page, 0); + int delalloc, unmapped, unwritten; - if (!page_has_buffers(page)) - return 0; + trace_xfs_releasepage(page->mapping->host, page, 0); xfs_count_page_state(page, &delalloc, &unmapped, &unwritten); - if (!delalloc && !unwritten) - goto free_buffers; - if (!(gfp_mask & __GFP_FS)) + if (WARN_ON(delalloc)) return 0; - - /* If we are already inside a transaction or the thread cannot - * do I/O, we cannot release this page. - */ - if (current_test_flags(PF_FSTRANS)) + if (WARN_ON(unwritten)) return 0; - /* - * Convert delalloc space to real space, do not flush the - * data out to disk, that will be done by the caller. - * Never need to allocate space here - we will always - * come back to writepage in that case. - */ - dirty = xfs_page_state_convert(inode, page, &wbc, 0, 0); - if (dirty == 0 && !unwritten) - goto free_buffers; - return 0; - -free_buffers: return try_to_free_buffers(page); } From BATV+476d4bb3db500d7e78e8+2483+infradead.org+hch@bombadil.srs.infradead.org Fri Jun 11 11:12:39 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5BGCdYl145659 for ; Fri, 11 Jun 2010 11:12:39 -0500 X-ASG-Debug-ID: 1276272912-39b001360000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id DBCE314C083A for ; Fri, 11 Jun 2010 09:15:12 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id SqfVDEFMpRddWv1f for ; Fri, 11 Jun 2010 09:15:12 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1ON6sy-00066Z-GK for xfs@oss.sgi.com; Fri, 11 Jun 2010 16:15:12 +0000 Message-Id: <20100611161512.404472115@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Fri, 11 Jun 2010 12:13:15 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH 3/3] xfs: simplify xfs_vm_writepage Subject: [PATCH 3/3] xfs: simplify xfs_vm_writepage References: <20100611161312.446670249@bombadil.infradead.org> Content-Disposition: inline; filename=xfs-simplify-writepage X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1276272912 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean The writepage implementation in XFS still tries to deal with dirty but unmapped buffers which used to caused by writes through shared mmaps. Since the introduction of ->page_mkwrite these can't happen anymore, so remove the code dealing with them. Note that the all_bh variable which causes us to start I/O on all buffers on the pages was controlled by the count of unmapped buffers, which also included those not actually dirty. It's now unconditionally initialized to 0 but set to 1 for the case of small file size extensions. It probably can be removed entirely, but that's left for another patch. Signed-off-by: Christoph Hellwig Index: xfs/fs/xfs/linux-2.6/xfs_aops.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_aops.c 2010-06-11 09:27:27.602003840 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_aops.c 2010-06-11 09:28:45.408003978 +0200 @@ -85,18 +85,15 @@ void xfs_count_page_state( struct page *page, int *delalloc, - int *unmapped, int *unwritten) { struct buffer_head *bh, *head; - *delalloc = *unmapped = *unwritten = 0; + *delalloc = *unwritten = 0; bh = head = page_buffers(page); do { - if (buffer_uptodate(bh) && !buffer_mapped(bh)) - (*unmapped) = 1; - else if (buffer_unwritten(bh)) + if (buffer_unwritten(bh)) (*unwritten) = 1; else if (buffer_delay(bh)) (*delalloc) = 1; @@ -607,31 +604,30 @@ xfs_map_at_offset( STATIC unsigned int xfs_probe_page( struct page *page, - unsigned int pg_offset, - int mapped) + unsigned int pg_offset) { + struct buffer_head *bh, *head; int ret = 0; if (PageWriteback(page)) return 0; + if (!PageDirty(page)) + return 0; + if (!page->mapping) + return 0; + if (!page_has_buffers(page)) + return 0; - if (page->mapping && PageDirty(page)) { - if (page_has_buffers(page)) { - struct buffer_head *bh, *head; - - bh = head = page_buffers(page); - do { - if (!buffer_uptodate(bh)) - break; - if (mapped != buffer_mapped(bh)) - break; - ret += bh->b_size; - if (ret >= pg_offset) - break; - } while ((bh = bh->b_this_page) != head); - } else - ret = mapped ? 0 : PAGE_CACHE_SIZE; - } + bh = head = page_buffers(page); + do { + if (!buffer_uptodate(bh)) + break; + if (!buffer_mapped(bh)) + break; + ret += bh->b_size; + if (ret >= pg_offset) + break; + } while ((bh = bh->b_this_page) != head); return ret; } @@ -641,8 +637,7 @@ xfs_probe_cluster( struct inode *inode, struct page *startpage, struct buffer_head *bh, - struct buffer_head *head, - int mapped) + struct buffer_head *head) { struct pagevec pvec; pgoff_t tindex, tlast, tloff; @@ -651,7 +646,7 @@ xfs_probe_cluster( /* First sum forwards in this page */ do { - if (!buffer_uptodate(bh) || (mapped != buffer_mapped(bh))) + if (!buffer_uptodate(bh) || !buffer_mapped(bh)) return total; total += bh->b_size; } while ((bh = bh->b_this_page) != head); @@ -685,7 +680,7 @@ xfs_probe_cluster( pg_offset = PAGE_CACHE_SIZE; if (page->index == tindex && trylock_page(page)) { - pg_len = xfs_probe_page(page, pg_offset, mapped); + pg_len = xfs_probe_page(page, pg_offset); unlock_page(page); } @@ -1021,18 +1016,12 @@ out_invalidate: * For delalloc space on the page we need to allocate space and flush it. * For unwritten space on the page we need to start the conversion to * regular allocated space. - * For unmapped buffer heads on the page we should allocate space if the - * page is uptodate. * For any other dirty buffer heads on the page we should flush them. * * If we detect that a transaction would be required to flush the page, we * have to check the process flags first, if we are already in a transaction * or disk I/O during allocations is off, we need to fail the writepage and * redirty the page. - * - * The bh->b_state's cannot know if any of the blocks or which block for that - * matter are dirty due to mmap writes, and therefore bh uptodate is only - * valid if the page itself isn't completely uptodate. */ STATIC int xfs_vm_writepage( @@ -1040,8 +1029,7 @@ xfs_vm_writepage( struct writeback_control *wbc) { struct inode *inode = page->mapping->host; - int need_trans; - int delalloc, unmapped, unwritten; + int delalloc, unwritten; struct buffer_head *bh, *head; struct xfs_bmbt_irec imap; xfs_ioend_t *ioend = NULL, *iohead = NULL; @@ -1052,10 +1040,12 @@ xfs_vm_writepage( ssize_t size, len; int flags, err, imap_valid = 0, uptodate = 1; int count = 0; - int all_bh; + int all_bh = 0; trace_xfs_writepage(inode, page, 0); + ASSERT(page_has_buffers(page)); + /* * Refuse to write the page out if we are called from reclaim context. * @@ -1072,39 +1062,18 @@ xfs_vm_writepage( goto out_fail; /* - * We need a transaction if: - * 1. There are delalloc buffers on the page - * 2. The page is uptodate and we have unmapped buffers - * 3. The page is uptodate and we have no buffers - * 4. There are unwritten buffers on the page - */ - if (!page_has_buffers(page)) { - unmapped = 1; - need_trans = 1; - } else { - xfs_count_page_state(page, &delalloc, &unmapped, &unwritten); - if (!PageUptodate(page)) - unmapped = 0; - need_trans = delalloc + unmapped + unwritten; - } - - /* - * If we need a transaction and the process flags say - * we are already in a transaction, or no IO is allowed - * then mark the page dirty again and leave the page - * as is. + * We need a transaction if there are delalloc or unwritten buffers + * on the page. + * + * If we need a transaction and the process flags say we are already + * in a transaction, or no IO is allowed then mark the page dirty + * again and leave the page as is. */ - if (current_test_flags(PF_FSTRANS) && need_trans) + xfs_count_page_state(page, &delalloc, &unwritten); + if ((current->flags & PF_FSTRANS) && (delalloc || unwritten)) goto out_fail; /* - * Delay hooking up buffer heads until we have - * made our go/no-go decision. - */ - if (!page_has_buffers(page)) - create_empty_buffers(page, 1 << inode->i_blkbits, 0); - - /* * VM calculation for nr_to_write seems off. Bump it way * up, this gets simple streaming writes zippy again. * To be reviewed again after Jens' writeback changes. @@ -1124,7 +1093,8 @@ xfs_vm_writepage( } end_offset = min_t(unsigned long long, - (xfs_off_t)(page->index + 1) << PAGE_CACHE_SHIFT, offset); + (xfs_off_t)(page->index + 1) << PAGE_CACHE_SHIFT, + offset); len = 1 << inode->i_blkbits; bh = head = page_buffers(page); @@ -1132,8 +1102,6 @@ xfs_vm_writepage( flags = BMAPI_READ; type = IO_NEW; - all_bh = unmapped; - do { if (offset >= end_offset) break; @@ -1153,19 +1121,7 @@ xfs_vm_writepage( if (imap_valid) imap_valid = xfs_imap_valid(inode, &imap, offset); - /* - * First case, map an unwritten extent and prepare for - * extent state conversion transaction on completion. - * - * Second case, allocate space for a delalloc buffer. - * We can return EAGAIN here in the release page case. - * - * Third case, an unmapped buffer was found, and we are - * in a path where we need to write the whole page out. - */ - if (buffer_unwritten(bh) || buffer_delay(bh) || - ((buffer_uptodate(bh) || PageUptodate(page)) && - !buffer_mapped(bh))) { + if (buffer_unwritten(bh) || buffer_delay(bh)) { int new_ioend = 0; /* @@ -1184,14 +1140,11 @@ xfs_vm_writepage( if (wbc->sync_mode == WB_SYNC_NONE && wbc->nonblocking) flags |= BMAPI_TRYLOCK; - } else { - type = IO_NEW; - flags = BMAPI_WRITE | BMAPI_MMAP; } if (!imap_valid) { /* - * if we didn't have a valid mapping then we + * If we didn't have a valid mapping then we * need to ensure that we put the new mapping * in a new ioend structure. This needs to be * done to ensure that the ioends correctly @@ -1199,14 +1152,7 @@ xfs_vm_writepage( * for unwritten extent conversion. */ new_ioend = 1; - if (type == IO_NEW) { - size = xfs_probe_cluster(inode, - page, bh, head, 0); - } else { - size = len; - } - - err = xfs_map_blocks(inode, offset, size, + err = xfs_map_blocks(inode, offset, len, &imap, flags); if (err) goto error; @@ -1227,8 +1173,7 @@ xfs_vm_writepage( */ if (!imap_valid || flags != BMAPI_READ) { flags = BMAPI_READ; - size = xfs_probe_cluster(inode, page, bh, - head, 1); + size = xfs_probe_cluster(inode, page, bh, head); err = xfs_map_blocks(inode, offset, size, &imap, flags); if (err) @@ -1247,7 +1192,6 @@ xfs_vm_writepage( */ type = IO_NEW; if (trylock_buffer(bh)) { - ASSERT(buffer_mapped(bh)); if (imap_valid) all_bh = 1; xfs_add_to_ioend(inode, bh, offset, type, @@ -1257,6 +1201,7 @@ xfs_vm_writepage( imap_valid = 0; } } else if (PageUptodate(page)) { + ASSERT(buffer_mapped(bh)); imap_valid = 0; } @@ -1298,8 +1243,7 @@ error: if (iohead) xfs_cancel_ioend(iohead); - if (!unmapped) - xfs_aops_discard_page(page); + xfs_aops_discard_page(page); ClearPageUptodate(page); unlock_page(page); return err; @@ -1331,11 +1275,11 @@ xfs_vm_releasepage( struct page *page, gfp_t gfp_mask) { - int delalloc, unmapped, unwritten; + int delalloc, unwritten; trace_xfs_releasepage(page->mapping->host, page, 0); - xfs_count_page_state(page, &delalloc, &unmapped, &unwritten); + xfs_count_page_state(page, &delalloc, &unwritten); if (WARN_ON(delalloc)) return 0; Index: xfs/fs/xfs/linux-2.6/xfs_aops.h =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_aops.h 2010-02-13 22:45:45.000000000 +0100 +++ xfs/fs/xfs/linux-2.6/xfs_aops.h 2010-06-11 09:27:44.075004398 +0200 @@ -45,6 +45,6 @@ extern int xfs_get_blocks(struct inode * extern void xfs_ioend_init(void); extern void xfs_ioend_wait(struct xfs_inode *); -extern void xfs_count_page_state(struct page *, int *, int *, int *); +extern void xfs_count_page_state(struct page *, int *, int *); #endif /* __XFS_AOPS_H__ */ Index: xfs/fs/xfs/linux-2.6/xfs_trace.h =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_trace.h 2010-06-04 15:12:52.000000000 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_trace.h 2010-06-11 09:27:44.083003979 +0200 @@ -829,33 +829,29 @@ DECLARE_EVENT_CLASS(xfs_page_class, __field(loff_t, size) __field(unsigned long, offset) __field(int, delalloc) - __field(int, unmapped) __field(int, unwritten) ), TP_fast_assign( - int delalloc = -1, unmapped = -1, unwritten = -1; + int delalloc = -1, unwritten = -1; if (page_has_buffers(page)) - xfs_count_page_state(page, &delalloc, - &unmapped, &unwritten); + xfs_count_page_state(page, &delalloc, &unwritten); __entry->dev = inode->i_sb->s_dev; __entry->ino = XFS_I(inode)->i_ino; __entry->pgoff = page_offset(page); __entry->size = i_size_read(inode); __entry->offset = off; __entry->delalloc = delalloc; - __entry->unmapped = unmapped; __entry->unwritten = unwritten; ), TP_printk("dev %d:%d ino 0x%llx pgoff 0x%lx size 0x%llx offset %lx " - "delalloc %d unmapped %d unwritten %d", + "delalloc %d unwritten %d", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino, __entry->pgoff, __entry->size, __entry->offset, __entry->delalloc, - __entry->unmapped, __entry->unwritten) ) From BATV+476d4bb3db500d7e78e8+2483+infradead.org+hch@bombadil.srs.infradead.org Fri Jun 11 11:15:51 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5BGFoRq146060 for ; Fri, 11 Jun 2010 11:15:51 -0500 X-ASG-Debug-ID: 1276273104-39af01560000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 19B3C14C08BE for ; Fri, 11 Jun 2010 09:18:24 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id uCrGlMcbGsolRgfi for ; Fri, 11 Jun 2010 09:18:24 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1ON6w4-0002AM-Qs for xfs@oss.sgi.com; Fri, 11 Jun 2010 16:18:24 +0000 Date: Fri, 11 Jun 2010 12:18:24 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH] xfs: remove xfs_iput_new Subject: [PATCH] xfs: remove xfs_iput_new Message-ID: <20100611161824.GA7556@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1276273105 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean We never get an i_mode of 0 or a locked VFS inode until we pass in the XFS_IGET_CREATE flag to xfs_iget, which makes xfs_iput_new equivalent to xfs_iput for the only caller. Signed-off-by: Christoph Hellwig Index: xfs/fs/xfs/linux-2.6/xfs_export.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_export.c 2010-06-09 15:24:59.480253950 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_export.c 2010-06-09 15:25:16.668003845 +0200 @@ -148,7 +148,7 @@ xfs_nfs_get_inode( } if (ip->i_d.di_gen != generation) { - xfs_iput_new(ip, XFS_ILOCK_SHARED); + xfs_iput(ip, XFS_ILOCK_SHARED); return ERR_PTR(-ENOENT); } Index: xfs/fs/xfs/xfs_iget.c =================================================================== --- xfs.orig/fs/xfs/xfs_iget.c 2010-06-09 15:24:59.492254229 +0200 +++ xfs/fs/xfs/xfs_iget.c 2010-06-09 15:25:11.454004125 +0200 @@ -439,29 +439,6 @@ xfs_iput(xfs_inode_t *ip, } /* - * Special iput for brand-new inodes that are still locked - */ -void -xfs_iput_new( - xfs_inode_t *ip, - uint lock_flags) -{ - struct inode *inode = VFS_I(ip); - - xfs_itrace_entry(ip); - - if ((ip->i_d.di_mode == 0)) { - ASSERT(!xfs_iflags_test(ip, XFS_IRECLAIMABLE)); - make_bad_inode(inode); - } - if (inode->i_state & I_NEW) - unlock_new_inode(inode); - if (lock_flags) - xfs_iunlock(ip, lock_flags); - IRELE(ip); -} - -/* * This is called free all the memory associated with an inode. * It must free the inode itself and any buffers allocated for * if_extents/if_data and if_broot. It must also free the lock Index: xfs/fs/xfs/xfs_inode.h =================================================================== --- xfs.orig/fs/xfs/xfs_inode.h 2010-06-09 15:24:59.506253740 +0200 +++ xfs/fs/xfs/xfs_inode.h 2010-06-09 15:25:14.794005243 +0200 @@ -444,7 +444,6 @@ static inline void xfs_ifunlock(xfs_inod int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t, uint, uint, xfs_inode_t **, xfs_daddr_t); void xfs_iput(xfs_inode_t *, uint); -void xfs_iput_new(xfs_inode_t *, uint); void xfs_ilock(xfs_inode_t *, uint); int xfs_ilock_nowait(xfs_inode_t *, uint); void xfs_iunlock(xfs_inode_t *, uint); From BATV+476d4bb3db500d7e78e8+2483+infradead.org+hch@bombadil.srs.infradead.org Fri Jun 11 11:16:49 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_27 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5BGGn5V146108 for ; Fri, 11 Jun 2010 11:16:49 -0500 X-ASG-Debug-ID: 1276273163-1bf603d70000-w1Z2WR X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 1013A3BF8D9 for ; Fri, 11 Jun 2010 09:19:23 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id qWpUZ0SLDbxhjjY9 for ; Fri, 11 Jun 2010 09:19:23 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1ON6x0-0003nU-QK; Fri, 11 Jun 2010 16:19:22 +0000 Date: Fri, 11 Jun 2010 12:19:22 -0400 From: Christoph Hellwig To: Peter Niemayer Cc: linux-xfs@oss.sgi.com X-ASG-Orig-Subj: Re: linux-2.6.34 xfs crash: xfs_inode_ag_iterator+0x6c - NULL pointer dereference Subject: Re: linux-2.6.34 xfs crash: xfs_inode_ag_iterator+0x6c - NULL pointer dereference Message-ID: <20100611161922.GB7556@infradead.org> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1276273164 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu, Jun 10, 2010 at 07:45:01PM +0200, Peter Niemayer wrote: > Hi, > > FYI: attached screen-shot is from a server that crashed today when > doing an "umount" of a no longer needed XFS partition on a SSD > (mount options: rw,noatime,nodiratime,nobarrier) > > (The operations on that filesystem ended > 1 day before the umount, > and did not show any problem) > > Kernel was plain vanilla 2.6.34. Unfortunately the backtrace doesn't really tell what has happened as the origin of the backtrace scrolled away. From BATV+476d4bb3db500d7e78e8+2483+infradead.org+hch@bombadil.srs.infradead.org Fri Jun 11 11:17:35 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5BGHZSE146157 for ; Fri, 11 Jun 2010 11:17:35 -0500 X-ASG-Debug-ID: 1276273209-1f5203c30000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id D62743BF514 for ; Fri, 11 Jun 2010 09:20:09 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id iQjVoCZjeT5FY2QW for ; Fri, 11 Jun 2010 09:20:09 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1ON6xj-0005xR-TS; Fri, 11 Jun 2010 16:20:07 +0000 Date: Fri, 11 Jun 2010 12:20:07 -0400 From: Christoph Hellwig To: Andi Kleen Cc: xfs@oss.sgi.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org X-ASG-Orig-Subj: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Subject: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Message-ID: <20100611162007.GC7556@infradead.org> References: <20100610110.764742110@firstfloor.org> <20100610111052.3DDC5B1A2B@basil.firstfloor.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100610111052.3DDC5B1A2B@basil.firstfloor.org> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1276273209 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Most of this looks good to me, but I really don't like the QASSERT macro. If you're fine with it I'll split this up into smaller patches and resubmit the unmodified parts under your name and redo those bits I don't like. From andi@firstfloor.org Fri Jun 11 11:34:15 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5BGYF3c146892 for ; Fri, 11 Jun 2010 11:34:15 -0500 X-ASG-Debug-ID: 1276274400-689e026a0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from one.firstfloor.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 1DCEF15949EB for ; Fri, 11 Jun 2010 09:40:00 -0700 (PDT) Received: from one.firstfloor.org (one.firstfloor.org [213.235.205.2]) by cuda.sgi.com with ESMTP id 9ARQtnn5bG5zMFbo for ; Fri, 11 Jun 2010 09:40:00 -0700 (PDT) Received: from basil.firstfloor.org (p5B3CB61A.dip0.t-ipconnect.de [91.60.182.26]) by one.firstfloor.org (Postfix) with ESMTP id 0FE6D1EE801C; Fri, 11 Jun 2010 18:36:45 +0200 (CEST) Received: by basil.firstfloor.org (Postfix, from userid 1000) id 5D419B1A33; Fri, 11 Jun 2010 18:36:44 +0200 (CEST) Date: Fri, 11 Jun 2010 18:36:44 +0200 From: Andi Kleen To: Christoph Hellwig Cc: Andi Kleen , xfs@oss.sgi.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org X-ASG-Orig-Subj: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Subject: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Message-ID: <20100611163644.GH6864@basil.fritz.box> References: <20100610110.764742110@firstfloor.org> <20100610111052.3DDC5B1A2B@basil.firstfloor.org> <20100611162007.GC7556@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100611162007.GC7556@infradead.org> User-Agent: Mutt/1.5.17 (2007-11-01) X-Barracuda-Connect: one.firstfloor.org[213.235.205.2] X-Barracuda-Start-Time: 1276274401 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0001 1.0000 -2.0206 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32253 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jun 11, 2010 at 12:20:07PM -0400, Christoph Hellwig wrote: > Most of this looks good to me, but I really don't like the QASSERT > macro. If you're fine with it I'll split this up into smaller patches Why do you not like it? The alternative will be likely uglier. > and resubmit the unmodified parts under your name and redo those bits > I don't like. Fine for me. -Andi -- ak@linux.intel.com -- Speaking for myself only. From sgi-linux-xfs@lo.gmane.org Fri Jun 11 11:46:52 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5BGkqLf147620 for ; Fri, 11 Jun 2010 11:46:52 -0500 X-ASG-Debug-ID: 1276274965-621100470000-w1Z2WR X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from lo.gmane.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 2D6CF3BFB11 for ; Fri, 11 Jun 2010 09:49:25 -0700 (PDT) Received: from lo.gmane.org (lo.gmane.org [80.91.229.12]) by cuda.sgi.com with ESMTP id Qs6MZCmt1IYwHW1y for ; Fri, 11 Jun 2010 09:49:25 -0700 (PDT) Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1ON7Q2-0001Fg-Lo for linux-xfs@oss.sgi.com; Fri, 11 Jun 2010 18:49:22 +0200 Received: from barriere.frankfurter-softwarefabrik.de ([217.11.197.1]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 11 Jun 2010 18:49:22 +0200 Received: from niemayer by barriere.frankfurter-softwarefabrik.de with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 11 Jun 2010 18:49:22 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: linux-xfs@oss.sgi.com connect(): No such file or directory From: Peter Niemayer X-ASG-Orig-Subj: Re: linux-2.6.34 xfs crash: xfs_inode_ag_iterator+0x6c - NULL pointer dereference Subject: Re: linux-2.6.34 xfs crash: xfs_inode_ag_iterator+0x6c - NULL pointer dereference Date: Fri, 11 Jun 2010 18:49:10 +0200 Lines: 11 Message-ID: References: <20100611161922.GB7556@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: barriere.frankfurter-softwarefabrik.de User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 In-Reply-To: <20100611161922.GB7556@infradead.org> X-Barracuda-Connect: lo.gmane.org[80.91.229.12] X-Barracuda-Start-Time: 1276274966 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32252 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On 06/11/2010 06:19 PM, Christoph Hellwig wrote: > Unfortunately the backtrace doesn't really tell what has happened as > the origin of the backtrace scrolled away. Oh, sorry. Now it's too late for this incident - but if it happens again, I'll try to do screen-shots also from the "upper" part of the scroll buffer. Regards, Peter Niemayer From sandeen@redhat.com Fri Jun 11 17:06:47 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5BM6lnr164829 for ; Fri, 11 Jun 2010 17:06:47 -0500 X-ASG-Debug-ID: 1276294354-1b1903990000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mx1.redhat.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 8238012A8B21 for ; Fri, 11 Jun 2010 15:12:34 -0700 (PDT) Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id yoNmTWtiL8UaLvaJ for ; Fri, 11 Jun 2010 15:12:34 -0700 (PDT) X-ASG-Whitelist: Barracuda Reputation Received: from int-mx08.intmail.prod.int.phx2.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o5BM9K1T009219 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 11 Jun 2010 18:09:20 -0400 Received: from liberator.sandeen.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx08.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o5BM9EG9009232 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 11 Jun 2010 18:09:18 -0400 Message-ID: <4C12B40A.2070405@redhat.com> Date: Fri, 11 Jun 2010 17:09:14 -0500 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.24 (Macintosh/20100228) MIME-Version: 1.0 To: Jan Kara CC: xfs-oss X-ASG-Orig-Subj: [PATCH] quota: don't disable accounting with quotaoff Subject: [PATCH] quota: don't disable accounting with quotaoff Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.67 on 10.5.11.21 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1276294355 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean The quotaon(8) man page says: NOTES ON XFS FILESYSTEMS ... To turn off quota limit enforcement on any XFS filesys- tem, first make sure that quota accounting and enforce- ment are both turned on using repquota -v filesystem. Then, use quotaoff -v filesystem to disable limit enforcement. This may be done while the filesystem is mounted. Turning on quota limit enforcement on an XFS filesystem is achieved using quotaon -v filesystem. This may be done while the filesystem is mounted however, quotaoff turns off both enforcement -and- accounting, and then quotaon fails. If the manpage describes the intended behavior, then I think the following patch is needed. Signed-off-by: Eric Sandeen --- --- quota-tools/quotaon_xfs.c 2010-01-05 10:39:54.000000000 -0500 +++ quota-tools-mine/quotaon_xfs.c 2010-06-11 17:45:12.000000000 -0400 @@ -208,10 +208,9 @@ } #endif /* XFS_ROOTHACK */ - if (xarg == NULL) { /* both acct & enfd on/off */ - xopts |= (type == USRQUOTA) ? - (XFS_QUOTA_UDQ_ACCT | XFS_QUOTA_UDQ_ENFD) : - (XFS_QUOTA_GDQ_ACCT | XFS_QUOTA_GDQ_ENFD); + if (xarg == NULL) { /* only enfd on/off */ + xopts |= (type == USRQUOTA) ? XFS_QUOTA_UDQ_ENFD : + XFS_QUOTA_GDQ_ENFD; err = xfs_onoff((char *)dev, type, flags, roothack, xopts); } else if (strcmp(xarg, "account") == 0) { From michael.monnerie@is.it-management.at Fri Jun 11 18:35:53 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5BNZqc7168309 for ; Fri, 11 Jun 2010 18:35:52 -0500 X-ASG-Debug-ID: 1276299504-0a8e02860000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 9C8453C0B03 for ; Fri, 11 Jun 2010 16:38:24 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id 3RMTynPHNc1NO30f for ; Fri, 11 Jun 2010 16:38:24 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id 06AA617C for ; Sat, 12 Jun 2010 01:38:23 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id 896CA83C804 for ; Sat, 12 Jun 2010 01:38:19 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs_repair 3.1.2 crashing Subject: Re: xfs_repair 3.1.2 crashing Date: Sat, 12 Jun 2010 01:38:17 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) References: <201006101306.07587@zmi.at> <4C11127C.3030907@sandeen.net> In-Reply-To: <4C11127C.3030907@sandeen.net> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart10730052.8qNjOU9pan"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201006120138.22265@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1276299505 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32279 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart10730052.8qNjOU9pan Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable On Donnerstag, 10. Juni 2010 Eric Sandeen wrote: > It'd be great to at least capture the issue by creating an > xfs_metadump image for analysis... I sent it to you in private. But now I'm really puzzled: I bought 2 2TB drives, installed an lvm with=20 xfs on them to have 4TB, and copied the contents from the server to=20 these 4TB via rsync -aHAX. And now I have a broken XFS on that brand new=20 created drives, without any crash, not even a reboot! I got this message after making a "du -s" on the new disks: du: cannot access `samba/backup/uranus/WindowsImageBackup/uranus/Backup=20 2010-06-05 010014/852c2690-cf1a-11de-b09b-806e6f6e6963.vhd': Structure=20 needs cleaning So I umounted and xfs_repaired (v3.1.2) it: # xfs_repair -V = =20 xfs_repair version 3.1.2 = =20 # xfs_repair /dev/swraid0/backup=20 Phase 1 - find and verify superblock... =20 Phase 2 - using internal log =20 - zero log... =20 - scan filesystem freespace and inode maps... - found root inode chunk =20 Phase 3 - for each AG... =20 - scan and clear agi unlinked lists... - process known inodes and perform inode discovery... - agno =3D 0 - agno =3D 1 local inode 2195133988 attr too small (size =3D 3, min size =3D 4) bad attribute fork in inode 2195133988, clearing attr fork clearing inode 2195133988 attributes cleared inode 2195133988 - agno =3D 2 - agno =3D 3 - agno =3D 4 - agno =3D 5 - agno =3D 6 - agno =3D 7 - process newly discovered inodes... Phase 4 - check for duplicate blocks... - setting up duplicate extent list... - check for inodes claiming duplicate blocks... - agno =3D 2 - agno =3D 4 - agno =3D 5 - agno =3D 6 - agno =3D 7 - agno =3D 3 - agno =3D 1 - agno =3D 0 data fork in inode 2195133988 claims metadata block 537122652 xfs_repair: dinode.c:2101: process_inode_data_fork: Assertion `err =3D=3D 0= '=20 failed. Aborted What's this now? I copied the error from the source via rsync? ;-) =2D-=20 mit freundlichen Gr=FCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=E4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart10730052.8qNjOU9pan Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwSyO4ACgkQzhSR9xwSCbQ4cQCgla1RssZYXSPqUHu582MfYkqf w4sAn3b5pSxJEBqLQ/uD7ci4CbkZiC5S =OjUM -----END PGP SIGNATURE----- --nextPart10730052.8qNjOU9pan-- From tao.ma@oracle.com Fri Jun 11 18:36:31 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_66, UNPARSEABLE_RELAY autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5BNaVZp168345 for ; Fri, 11 Jun 2010 18:36:31 -0500 X-ASG-Debug-ID: 1276299545-07da02890000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from rcsinet10.oracle.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id A86A03C0B11 for ; Fri, 11 Jun 2010 16:39:05 -0700 (PDT) Received: from rcsinet10.oracle.com (rcsinet10.oracle.com [148.87.113.121]) by cuda.sgi.com with ESMTP id GREdij0JwM14QOT0 for ; Fri, 11 Jun 2010 16:39:05 -0700 (PDT) Received: from rcsinet15.oracle.com (rcsinet15.oracle.com [148.87.113.117]) by rcsinet10.oracle.com (Switch-3.4.2/Switch-3.4.1) with ESMTP id o5BNctwr007896 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 11 Jun 2010 23:38:57 GMT Received: from acsmt354.oracle.com (acsmt354.oracle.com [141.146.40.154]) by rcsinet15.oracle.com (Switch-3.4.2/Switch-3.4.1) with ESMTP id o5BCJGFp028927; Fri, 11 Jun 2010 23:38:52 GMT Received: from abhmt015.oracle.com by acsmt355.oracle.com with ESMTP id 340473211276299441; Fri, 11 Jun 2010 16:37:21 -0700 Received: from tma-home.cn.oracle.com (/141.144.146.110) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 11 Jun 2010 16:37:21 -0700 Message-ID: <4C12C8BB.50604@oracle.com> Date: Sat, 12 Jun 2010 07:37:31 +0800 From: Tao Ma User-Agent: Mozilla-Thunderbird 2.0.0.22 (X11/20090706) MIME-Version: 1.0 To: Eric Sandeen CC: xfs@oss.sgi.com, Christoph Hellwig , linux-kernel@vger.kernel.org, Alex Elder X-ASG-Orig-Subj: Re: [PATCH] xfs: Make fiemap works with sparse file. Subject: Re: [PATCH] xfs: Make fiemap works with sparse file. References: <1276236135-12051-1-git-send-email-tao.ma@oracle.com> <4C125C0D.4080600@sandeen.net> In-Reply-To: <4C125C0D.4080600@sandeen.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Auth-Type: Internal IP X-Source-IP: rcsinet15.oracle.com [148.87.113.117] X-CT-RefId: str=0001.0A090201.4C12C911.0196:SCFMA4539811,ss=1,fgs=0 X-Barracuda-Connect: rcsinet10.oracle.com[148.87.113.121] X-Barracuda-Start-Time: 1276299545 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32279 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Eric Sandeen wrote: > Tao Ma wrote: > >> In xfs_vn_fiemap, we set bvm_count to fi_extent_max + 1 and want >> to return fi_extent_max extents, but actually it won't work for >> a sparse file. The reason is that in xfs_getbmap we will >> calculate holes and set it in 'out', while out is malloced by >> bmv_count(fi_extent_max+1) which didn't consider holes. So in the >> worst case, if 'out' vector looks like >> [hole, extent, hole, extent, hole, ... hole, extent, hole], >> we will only return half of fi_extent_max extents. >> >> So in xfs_vn_fiemap, we should consider this worst case. If the >> user wants fi_extent_max extents, we need a 'out' with size of >> 2 *fi_extent_max + 1. >> > > This all seems right to me, though your commit message above (+1) > doesn't match the comment and code in the patch (+2) > oh, yes, I will change the commit log and send a v2. and can I add your ack for this patch? Regards, Tao > -Eric > > >> Cc: Alex Elder >> Cc: Christoph Hellwig >> Cc: Dave Chinner >> Signed-off-by: Tao Ma >> --- >> fs/xfs/linux-2.6/xfs_iops.c | 16 ++++++++++++++-- >> 1 files changed, 14 insertions(+), 2 deletions(-) >> >> diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c >> index 9c8019c..1db92e3 100644 >> --- a/fs/xfs/linux-2.6/xfs_iops.c >> +++ b/fs/xfs/linux-2.6/xfs_iops.c >> @@ -672,9 +672,21 @@ xfs_vn_fiemap( >> else >> bm.bmv_length = BTOBB(length); >> >> - /* We add one because in getbmap world count includes the header */ >> + /* >> + * It is a bit tricky for us to calculate the bmv_count from >> + * fi_extent_max. >> + * If we support to return fi_extent_max extents to the user, >> + * we need at most 2 * fi_extent_max + 1 for bmv_count since >> + * in xfs_getbmap we will calculate holes while fi_extent_max >> + * don't have them. So in the worst case, bmv can looks like >> + * [hole, extent, hole, extent, hole, ... hole, extent, hole]. >> + * So there will be 2 *fi_extent_max + 1. >> + * What's more, in getbmap world count have to include the >> + * header, so we need another bmv. So the total number will >> + * be 2 * fieinfo->fi_extents_max + 2. >> + */ >> bm.bmv_count = !fieinfo->fi_extents_max ? MAXEXTNUM : >> - fieinfo->fi_extents_max + 1; >> + 2 * fieinfo->fi_extents_max + 2; >> bm.bmv_count = min_t(__s32, bm.bmv_count, >> (PAGE_SIZE * 16 / sizeof(struct getbmapx))); >> bm.bmv_iflags = BMV_IF_PREALLOC; >> > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > From sandeen@sandeen.net Fri Jun 11 18:51:42 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_66 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5BNpfGM168884 for ; Fri, 11 Jun 2010 18:51:42 -0500 X-ASG-Debug-ID: 1276300454-0a90030a0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.sandeen.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 92B483C0C2F for ; Fri, 11 Jun 2010 16:54:15 -0700 (PDT) Received: from mail.sandeen.net (64-131-60-146.usfamily.net [64.131.60.146]) by cuda.sgi.com with ESMTP id Kb6lzoGSW2Q6QOk8 for ; Fri, 11 Jun 2010 16:54:15 -0700 (PDT) Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sandeen.net (Postfix) with ESMTP id 5749442B9C52; Fri, 11 Jun 2010 18:54:14 -0500 (CDT) Message-ID: <4C12CCA6.8060700@sandeen.net> Date: Fri, 11 Jun 2010 18:54:14 -0500 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.24 (Macintosh/20100228) MIME-Version: 1.0 To: Tao Ma CC: xfs@oss.sgi.com, Christoph Hellwig , linux-kernel@vger.kernel.org, Alex Elder X-ASG-Orig-Subj: Re: [PATCH] xfs: Make fiemap works with sparse file. Subject: Re: [PATCH] xfs: Make fiemap works with sparse file. References: <1276236135-12051-1-git-send-email-tao.ma@oracle.com> <4C125C0D.4080600@sandeen.net> <4C12C8BB.50604@oracle.com> In-Reply-To: <4C12C8BB.50604@oracle.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: 64-131-60-146.usfamily.net[64.131.60.146] X-Barracuda-Start-Time: 1276300455 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32281 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Tao Ma wrote: > Eric Sandeen wrote: >> Tao Ma wrote: >> >>> In xfs_vn_fiemap, we set bvm_count to fi_extent_max + 1 and want >>> to return fi_extent_max extents, but actually it won't work for >>> a sparse file. The reason is that in xfs_getbmap we will >>> calculate holes and set it in 'out', while out is malloced by >>> bmv_count(fi_extent_max+1) which didn't consider holes. So in the >>> worst case, if 'out' vector looks like >>> [hole, extent, hole, extent, hole, ... hole, extent, hole], >>> we will only return half of fi_extent_max extents. >>> >>> So in xfs_vn_fiemap, we should consider this worst case. If the >>> user wants fi_extent_max extents, we need a 'out' with size of >>> 2 *fi_extent_max + 1. >>> >> >> This all seems right to me, though your commit message above (+1) >> doesn't match the comment and code in the patch (+2) >> > oh, yes, I will change the commit log and send a v2. > and can I add your ack for this patch? Sure, it seems right to me. Thanks, -Eric > Regards, > Tao >> -Eric >> >> >>> Cc: Alex Elder >>> Cc: Christoph Hellwig >>> Cc: Dave Chinner >>> Signed-off-by: Tao Ma >>> --- >>> fs/xfs/linux-2.6/xfs_iops.c | 16 ++++++++++++++-- >>> 1 files changed, 14 insertions(+), 2 deletions(-) >>> >>> diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c >>> index 9c8019c..1db92e3 100644 >>> --- a/fs/xfs/linux-2.6/xfs_iops.c >>> +++ b/fs/xfs/linux-2.6/xfs_iops.c >>> @@ -672,9 +672,21 @@ xfs_vn_fiemap( >>> else >>> bm.bmv_length = BTOBB(length); >>> >>> - /* We add one because in getbmap world count includes the header */ >>> + /* >>> + * It is a bit tricky for us to calculate the bmv_count from >>> + * fi_extent_max. >>> + * If we support to return fi_extent_max extents to the user, >>> + * we need at most 2 * fi_extent_max + 1 for bmv_count since >>> + * in xfs_getbmap we will calculate holes while fi_extent_max >>> + * don't have them. So in the worst case, bmv can looks like >>> + * [hole, extent, hole, extent, hole, ... hole, extent, hole]. >>> + * So there will be 2 *fi_extent_max + 1. >>> + * What's more, in getbmap world count have to include the >>> + * header, so we need another bmv. So the total number will >>> + * be 2 * fieinfo->fi_extents_max + 2. >>> + */ >>> bm.bmv_count = !fieinfo->fi_extents_max ? MAXEXTNUM : >>> - fieinfo->fi_extents_max + 1; >>> + 2 * fieinfo->fi_extents_max + 2; >>> bm.bmv_count = min_t(__s32, bm.bmv_count, >>> (PAGE_SIZE * 16 / sizeof(struct getbmapx))); >>> bm.bmv_iflags = BMV_IF_PREALLOC; >>> >> >> -- >> To unsubscribe from this list: send the line "unsubscribe >> linux-kernel" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> Please read the FAQ at http://www.tux.org/lkml/ >> > From sandeen@sandeen.net Fri Jun 11 20:36:07 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5C1a7R8171808 for ; Fri, 11 Jun 2010 20:36:07 -0500 X-ASG-Debug-ID: 1276306720-0287005e0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.sandeen.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 0A0173C0DF1 for ; Fri, 11 Jun 2010 18:38:40 -0700 (PDT) Received: from mail.sandeen.net (64-131-60-146.usfamily.net [64.131.60.146]) by cuda.sgi.com with ESMTP id FV9o5IyXa8mvrpgD for ; Fri, 11 Jun 2010 18:38:40 -0700 (PDT) Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sandeen.net (Postfix) with ESMTP id 4361542B9C49; Fri, 11 Jun 2010 20:38:40 -0500 (CDT) Message-ID: <4C12E520.6040008@sandeen.net> Date: Fri, 11 Jun 2010 20:38:40 -0500 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.24 (Macintosh/20100228) MIME-Version: 1.0 To: Michael Monnerie CC: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs_repair 3.1.2 crashing Subject: Re: xfs_repair 3.1.2 crashing References: <201006101306.07587@zmi.at> <4C11127C.3030907@sandeen.net> <201006120138.22265@zmi.at> In-Reply-To: <201006120138.22265@zmi.at> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: 64-131-60-146.usfamily.net[64.131.60.146] X-Barracuda-Start-Time: 1276306721 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32287 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Michael Monnerie wrote: > On Donnerstag, 10. Juni 2010 Eric Sandeen wrote: >> It'd be great to at least capture the issue by creating an >> xfs_metadump image for analysis... > > I sent it to you in private. > > But now I'm really puzzled: I bought 2 2TB drives, installed an lvm with > xfs on them to have 4TB, and copied the contents from the server to > these 4TB via rsync -aHAX. And now I have a broken XFS on that brand new > created drives, without any crash, not even a reboot! > > I got this message after making a "du -s" on the new disks: > du: cannot access `samba/backup/uranus/WindowsImageBackup/uranus/Backup > 2010-06-05 010014/852c2690-cf1a-11de-b09b-806e6f6e6963.vhd': Structure > needs cleaning dmesg would be the right thing to do here ... > So I umounted and xfs_repaired (v3.1.2) it: > # xfs_repair -V > xfs_repair version 3.1.2 which kernel, again? The fork offset problems smell like something that's fixed. -Eric > # xfs_repair /dev/swraid0/backup > Phase 1 - find and verify superblock... > Phase 2 - using internal 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... > - agno = 0 > - agno = 1 > local inode 2195133988 attr too small (size = 3, min size = 4) > bad attribute fork in inode 2195133988, clearing attr fork > clearing inode 2195133988 attributes > cleared inode 2195133988 > - agno = 2 > - agno = 3 > - agno = 4 > - agno = 5 > - agno = 6 > - agno = 7 > - process newly discovered inodes... > Phase 4 - check for duplicate blocks... > - setting up duplicate extent list... > - check for inodes claiming duplicate blocks... > - agno = 2 > - agno = 4 > - agno = 5 > - agno = 6 > - agno = 7 > - agno = 3 > - agno = 1 > - agno = 0 > data fork in inode 2195133988 claims metadata block 537122652 > xfs_repair: dinode.c:2101: process_inode_data_fork: Assertion `err == 0' > failed. > Aborted > > What's this now? I copied the error from the source via rsync? ;-) > > > > ------------------------------------------------------------------------ > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From tao.ma@oracle.com Fri Jun 11 21:07:34 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_66, UNPARSEABLE_RELAY autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5C27YPo173086 for ; Fri, 11 Jun 2010 21:07:34 -0500 X-ASG-Debug-ID: 1276308607-1f3403cd0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from rcsinet10.oracle.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 7780714CB63B for ; Fri, 11 Jun 2010 19:10:08 -0700 (PDT) Received: from rcsinet10.oracle.com (rcsinet10.oracle.com [148.87.113.121]) by cuda.sgi.com with ESMTP id rPPYDAUo0ZquLyx4 for ; Fri, 11 Jun 2010 19:10:08 -0700 (PDT) Received: from acsinet15.oracle.com (acsinet15.oracle.com [141.146.126.227]) by rcsinet10.oracle.com (Switch-3.4.2/Switch-3.4.1) with ESMTP id o5C29qcw009872 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Sat, 12 Jun 2010 02:09:54 GMT Received: from acsmt355.oracle.com (acsmt355.oracle.com [141.146.40.155]) by acsinet15.oracle.com (Switch-3.4.2/Switch-3.4.1) with ESMTP id o5BHkqiq006020; Sat, 12 Jun 2010 02:09:51 GMT Received: from abhmt015.oracle.com by acsmt353.oracle.com with ESMTP id 319218511276308505; Fri, 11 Jun 2010 19:08:25 -0700 Received: from localhost.localdomain (/10.182.120.191) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 11 Jun 2010 19:08:24 -0700 From: Tao Ma To: xfs@oss.sgi.com Cc: linux-kernel@vger.kernel.org, sandeen@sandeen.net, Tao Ma , Alex Elder , Christoph Hellwig , Dave Chinner X-ASG-Orig-Subj: [PATCH v2] xfs: Make fiemap works with sparse file. Subject: [PATCH v2] xfs: Make fiemap works with sparse file. Date: Sat, 12 Jun 2010 10:08:15 +0800 Message-Id: <1276308495-14267-1-git-send-email-tao.ma@oracle.com> X-Mailer: git-send-email 1.7.0.4 X-Auth-Type: Internal IP X-Source-IP: acsinet15.oracle.com [141.146.126.227] X-CT-RefId: str=0001.0A090205.4C12EC73.00A2:SCFMA922111,ss=1,fgs=0 X-Barracuda-Connect: rcsinet10.oracle.com[148.87.113.121] X-Barracuda-Start-Time: 1276308608 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32289 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean In xfs_vn_fiemap, we set bvm_count to fi_extent_max + 1 and want to return fi_extent_max extents, but actually it won't work for a sparse file. The reason is that in xfs_getbmap we will calculate holes and set it in 'out', while out is malloced by bmv_count(fi_extent_max+1) which didn't consider holes. So in the worst case, if 'out' vector looks like [hole, extent, hole, extent, hole, ... hole, extent, hole], we will only return half of fi_extent_max extents. So in xfs_vn_fiemap, we should consider this worst case. If the user wants fi_extent_max extents, we need a 'out' with size of 2 *fi_extent_max + 2(one more the header). Cc: Alex Elder Cc: Christoph Hellwig Cc: Dave Chinner Acked-by: Eric Sandeen Signed-off-by: Tao Ma --- fs/xfs/linux-2.6/xfs_iops.c | 16 ++++++++++++++-- 1 files changed, 14 insertions(+), 2 deletions(-) diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c index 9c8019c..1db92e3 100644 --- a/fs/xfs/linux-2.6/xfs_iops.c +++ b/fs/xfs/linux-2.6/xfs_iops.c @@ -672,9 +672,21 @@ xfs_vn_fiemap( else bm.bmv_length = BTOBB(length); - /* We add one because in getbmap world count includes the header */ + /* + * It is a bit tricky for us to calculate the bmv_count from + * fi_extent_max. + * If we support to return fi_extent_max extents to the user, + * we need at most 2 * fi_extent_max + 1 for bmv_count since + * in xfs_getbmap we will calculate holes while fi_extent_max + * don't have them. So in the worst case, bmv can looks like + * [hole, extent, hole, extent, hole, ... hole, extent, hole]. + * So there will be 2 *fi_extent_max + 1. + * What's more, in getbmap world count have to include the + * header, so we need another bmv. So the total number will + * be 2 * fieinfo->fi_extents_max + 2. + */ bm.bmv_count = !fieinfo->fi_extents_max ? MAXEXTNUM : - fieinfo->fi_extents_max + 1; + 2 * fieinfo->fi_extents_max + 2; bm.bmv_count = min_t(__s32, bm.bmv_count, (PAGE_SIZE * 16 / sizeof(struct getbmapx))); bm.bmv_iflags = BMV_IF_PREALLOC; -- 1.5.5 From ibmirkin@gmail.com Fri Jun 11 23:58:20 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,T_DKIM_INVALID autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5C4wKPw178132 for ; Fri, 11 Jun 2010 23:58:20 -0500 X-ASG-Debug-ID: 1276318853-7dcb021d0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail-vw0-f53.google.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id DDB3A1B6F7B4 for ; Fri, 11 Jun 2010 22:00:53 -0700 (PDT) Received: from mail-vw0-f53.google.com (mail-vw0-f53.google.com [209.85.212.53]) by cuda.sgi.com with ESMTP id b822CdlI7rYs7j5F for ; Fri, 11 Jun 2010 22:00:53 -0700 (PDT) Received: by vws16 with SMTP id 16so2076299vws.26 for ; Fri, 11 Jun 2010 22:00:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:sender:received :in-reply-to:references:date:x-google-sender-auth:message-id:subject :from:to:cc:content-type; bh=Z50OKoE97cndcmjQLZnNR1bEj7sBkkeh0Tn6LY7vHlw=; b=VS9tuKfmPgQEUffjTEAVYodV52qfHZknJFrAfgiZ7Zk9GUTWt+3fJ5qXyomKsgoglm FWNY1flgfzRXetymGIx4nfT7POlLETX0BNlu6BzIPO3tYSe94gTBNxT86qKWYREkx+td HINb50N3nK5CLEhvwgFeB6ijPwd1sXoyyVCCk= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; b=xYzA/RgqGov/SvgjyzDjEs4ky5KN85W2vqBfJN/KWF9+tKlVTiEzc0qNXKV9i1cyV9 QKCb8CawdExCPs5q979Eq5kzmZpvg+Wb6GyA2hLcYXJtw28MYyousE2VRGKwduin1HUZ SV8nH7u5P8/4tevKc7hyJpfD3WvrAFycVsxhY= MIME-Version: 1.0 Received: by 10.220.121.140 with SMTP id h12mr284335vcr.170.1276318852344; Fri, 11 Jun 2010 22:00:52 -0700 (PDT) Sender: ibmirkin@gmail.com Received: by 10.220.87.71 with HTTP; Fri, 11 Jun 2010 22:00:52 -0700 (PDT) In-Reply-To: <20100524011907.GC12087@dastard> References: <20100523002023.41f5a5c8@aaa.pulp.binarylife.net> <20100523101856.GL2150@dastard> <20100523092344.0fcaab42@aaa.pulp.binarylife.net> <20100524011907.GC12087@dastard> Date: Sat, 12 Jun 2010 01:00:52 -0400 X-Google-Sender-Auth: R6zeX-zAHQgQ0R4HCU6oUtuZNDA Message-ID: X-ASG-Orig-Subj: Re: WARNING in xfs_lwr.c, xfs_write() Subject: Re: WARNING in xfs_lwr.c, xfs_write() From: Ilia Mirkin To: Dave Chinner Cc: Roman Kononov , xfs@oss.sgi.com, linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 X-Barracuda-Connect: mail-vw0-f53.google.com[209.85.212.53] X-Barracuda-Start-Time: 1276318854 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.52 X-Barracuda-Spam-Status: No, SCORE=-1.52 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_RULE7568M, DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32301 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 0.50 BSF_RULE7568M Custom Rule 7568M X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Sorry to pick up an old-ish thread, but I have a similar situation: On Sun, May 23, 2010 at 9:19 PM, Dave Chinner wrote: > On Sun, May 23, 2010 at 09:23:44AM -0500, Roman Kononov wrote: >> On 2010-05-23, 20:18:56 +1000, Dave Chinner wrote: >> > Can you find out what the application is triggering this? I noticed this happening with mysql and xtrabackup -- the latter opens up mysql's files while mysql is still running (and modifying its own files) and backs them up in a (hopefully) safe way. mysql had been running on the machine without any such warnings for a while before we ran the backup, so I'm pretty sure that the backup is involved, although its process is never listed. Specifically the warning is: [2584257.839386] ------------[ cut here ]------------ [2584257.839395] WARNING: at fs/xfs/linux-2.6/xfs_lrw.c:651 xfs_write+0x3dc/0x784() [2584257.839398] Hardware name: PowerEdge R710 [2584257.839399] Modules linked in: nfsd cifs iTCO_wdt iTCO_vendor_support [2584257.839406] Pid: 7761, comm: mysqld Not tainted 2.6.33-gentoo-r2 #1 [2584257.839407] Call Trace: [2584257.839411] [] ? xfs_write+0x3dc/0x784 [2584257.839415] [] warn_slowpath_common+0x77/0xa4 [2584257.839417] [] warn_slowpath_null+0xf/0x11 [2584257.839419] [] xfs_write+0x3dc/0x784 [2584257.839424] [] ? apic_timer_interrupt+0xe/0x20 [2584257.839427] [] xfs_file_aio_write+0x5a/0x5c [2584257.839430] [] do_sync_write+0xc0/0x106 [2584257.839435] [] ? __fsnotify_parent+0xc7/0xd3 [2584257.839437] [] vfs_write+0xab/0x105 [2584257.839439] [] sys_pwrite64+0x5c/0x7d [2584257.839442] [] system_call_fastpath+0x16/0x1b [2584257.839444] ---[ end trace 8b0c2a6e5e86745f ]--- > Yes, it should be safe, but the kernel code can't know whether this > is true or not - there are no specific interlocks with direct IO to > prevent concurrent buffered IO to the same region while a direct IO > is in progress. XFS does best effort attempts to maintain coherency > does not provide any guarantees, hence the warning when known race > conditions are tripped. Would it be safe to remove the warning at fs/xfs/linux-2.6/xfs_lrw.c:651 (which looks like it has moved to xfs_file.c in 2.6.34)? It seems undesirable to get a long stream of these (51 in this particular instance) every time we run a backup... IOW, is the warning purely something along the lines of "Userspace is doing something wonky, but the underlying FS will still be fine no matter what" kind of deal, or could there be an actual problem with the XFS metadata itself? Thanks for any advice, Ilia Mirkin imirkin@alum.mit.edu From michael.monnerie@is.it-management.at Sat Jun 12 05:39:25 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5CAdOou192726 for ; Sat, 12 Jun 2010 05:39:25 -0500 X-ASG-Debug-ID: 1276339511-33c801ef0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id C0F7D12A9F54 for ; Sat, 12 Jun 2010 03:45:12 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id WVs2fVkAgLEuZ2J1 for ; Sat, 12 Jun 2010 03:45:12 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id 463562490E for ; Sat, 12 Jun 2010 12:41:54 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id E91EC83C829 for ; Sat, 12 Jun 2010 12:41:49 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs_repair 3.1.2 crashing Subject: Re: xfs_repair 3.1.2 crashing Date: Sat, 12 Jun 2010 12:41:48 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) References: <201006101306.07587@zmi.at> <201006120138.22265@zmi.at> <4C12E520.6040008@sandeen.net> In-Reply-To: <4C12E520.6040008@sandeen.net> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart3390362.PifhOLhOaN"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201006121241.52336@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1276339513 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32323 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart3390362.PifhOLhOaN Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable On Samstag, 12. Juni 2010 Eric Sandeen wrote: > > du: cannot access > > `samba/backup/uranus/WindowsImageBackup/uranus/Backup 2010-06-05 > > 010014/852c2690-cf1a-11de-b09b-806e6f6e6963.vhd': Structure needs > > cleaning > dmesg would be the right thing to do here ... There are a lot, here the last two: [157312.699958] XFS mounting filesystem dm-0 = = =20 [157312.891010] Ending clean XFS mount for filesystem: dm-0 = = =20 [157340.953238] Filesystem "dm-0": corrupt inode 2195133988 ((a)extents =3D= 5). Unmount and run xfs_repair. = =20 [157340.953250] ffff8800928b6400: 49 4e 81 c0 02 02 00 00 00 00 03 e8 00 00= 00 64 IN.............d = =20 [157340.953268] Filesystem "dm-0": XFS internal error xfs_iformat_extents(1= ) at line 558 of file /usr/src/packages/BUILD/kernel-desktop-2.6.31.12/linu= x-2.6.31/fs/xfs/xfs_inode.c. Caller 0xffffffffa03380ad [157340.953271] = = =20 [157340.953285] Pid: 27034, comm: du Not tainted 2.6.31.12-0.2-desktop #1 = = =20 [157340.953292] Call Trace: = = =20 [157340.953308] [] try_stack_unwind+0x189/0x1b0 = = =20 [157340.953316] [] dump_trace+0xad/0x3a0 = = =20 [157340.953324] [] show_trace_log_lvl+0x64/0x90 = = =20 [157340.953331] [] show_trace+0x23/0x40 = = =20 [157340.953339] [] dump_stack+0x81/0x9e = = =20 [157340.953369] [] xfs_error_report+0x5a/0x70 [xfs] = = =20 [157340.953427] [] xfs_corruption_error+0x6c/0x90 [xfs] = = =20 [157340.953482] [] xfs_iformat_extents+0x234/0x280 [xfs]= = =20 [157340.953543] [] xfs_iformat+0x28d/0x5a0 [xfs] = = =20 [157340.953600] [] xfs_iread+0x182/0x1c0 [xfs] = = =20 [157340.953658] [] xfs_iget_cache_miss+0x78/0x250 [xfs] = = =20 [157340.953712] [] xfs_iget+0x12c/0x1b0 [xfs] = = =20 [157340.953768] [] xfs_lookup+0xce/0x100 [xfs] = = =20 [157340.953843] [] xfs_vn_lookup+0x6c/0xc0 [xfs] = = =20 [157340.953922] [] real_lookup+0x102/0x180 = = =20 [157340.953931] [] do_lookup+0xd0/0x100 = = =20 [157340.953938] [] __link_path_walk+0x522/0x880 = = =20 [157340.953945] [] path_walk+0x66/0xd0 = = =20 [157340.953953] [] do_path_lookup+0x6b/0xb0 = = =20 [157340.953957] [] user_path_at+0x61/0xc0 = = =20 [157340.953962] [] vfs_fstatat+0x41/0x90 = = =20 [157340.953967] [] sys_newfstatat+0x29/0x60 = = =20 [157340.953973] [] system_call_fastpath+0x16/0x1b = = =20 [157340.953986] [<00007fd51c9e50ee>] 0x7fd51c9e50ee = = =20 [157573.164556] Filesystem "dm-0": corrupt inode 2195133988 ((a)extents =3D= 5). Unmount and run xfs_repair. = =20 [157573.164584] ffff8800928b6400: 49 4e 81 c0 02 02 00 00 00 00 03 e8 00 00= 00 64 IN.............d = =20 [157573.164608] Filesystem "dm-0": XFS internal error xfs_iformat_extents(1= ) at line 558 of file /usr/src/packages/BUILD/kernel-desktop-2.6.31.12/linu= x-2.6.31/fs/xfs/xfs_inode.c. Caller 0xffffffffa03380ad [157573.164615] = = =20 [157573.164646] Pid: 27064, comm: du Not tainted 2.6.31.12-0.2-desktop #1 = = =20 [157573.164659] Call Trace: = = =20 [157573.164688] [] try_stack_unwind+0x189/0x1b0 = = =20 [157573.164710] [] dump_trace+0xad/0x3a0 = = =20 [157573.164729] [] show_trace_log_lvl+0x64/0x90 = = =20 [157573.164747] [] show_trace+0x23/0x40 = = =20 [157573.164765] [] dump_stack+0x81/0x9e [157573.164833] [] xfs_error_report+0x5a/0x70 [xfs] [157573.164988] [] xfs_corruption_error+0x6c/0x90 [xfs] [157573.165151] [] xfs_iformat_extents+0x234/0x280 [xfs] [157573.165317] [] xfs_iformat+0x28d/0x5a0 [xfs] [157573.165477] [] xfs_iread+0x182/0x1c0 [xfs] [157573.165640] [] xfs_iget_cache_miss+0x78/0x250 [xfs] [157573.165794] [] xfs_iget+0x12c/0x1b0 [xfs] [157573.165951] [] xfs_lookup+0xce/0x100 [xfs] [157573.166169] [] xfs_vn_lookup+0x6c/0xc0 [xfs] [157573.166366] [] real_lookup+0x102/0x180 [157573.166387] [] do_lookup+0xd0/0x100 [157573.166406] [] __link_path_walk+0x522/0x880 [157573.166425] [] path_walk+0x66/0xd0 [157573.166443] [] do_path_lookup+0x6b/0xb0 [157573.166461] [] user_path_at+0x61/0xc0 [157573.166481] [] vfs_fstatat+0x41/0x90 [157573.166500] [] sys_newfstatat+0x29/0x60 [157573.166520] [] system_call_fastpath+0x16/0x1b [157573.166551] [<00007f63d57480ee>] 0x7f63d57480ee > > xfs_repair version 3.1.2 > which kernel, again? The fork offset problems smell like something > that's fixed. openSUSE 11.2 with it's latest kernel, 2.6.31.12-0.2-desktop But as I said: fresh disks, fresh XFS, copied from another server with rsyn= c, no crashes,=20 not even a reboot. Why the problems? =2D-=20 mit freundlichen Gr=FCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=E4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart3390362.PifhOLhOaN Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwTZHAACgkQzhSR9xwSCbRfdwCbB36ivGbfEmelU8v7xbdNrDRo 2QgAn1CgWHT4SfQ3Xr2PTA7xbngeN3ae =thCi -----END PGP SIGNATURE----- --nextPart3390362.PifhOLhOaN-- From michael.monnerie@is.it-management.at Sat Jun 12 08:31:07 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5CDV6PR197823 for ; Sat, 12 Jun 2010 08:31:07 -0500 X-ASG-Debug-ID: 1276349618-643401a80000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 31F501D59D62 for ; Sat, 12 Jun 2010 06:33:39 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id YsKHCm87BLLWxpoP for ; Sat, 12 Jun 2010 06:33:39 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id DEFEE17D for ; Sat, 12 Jun 2010 15:33:37 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id 5952783C829 for ; Sat, 12 Jun 2010 15:33:33 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs_repair 3.1.2 crashing Subject: Re: xfs_repair 3.1.2 crashing Date: Sat, 12 Jun 2010 15:33:31 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) References: <201006101306.07587@zmi.at> <201006120138.22265@zmi.at> <4C12E520.6040008@sandeen.net> In-Reply-To: <4C12E520.6040008@sandeen.net> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart2255904.frkgb0dbxY"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201006121533.36684@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1276349620 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.52 X-Barracuda-Spam-Status: No, SCORE=-1.52 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_RULE_7582B X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32329 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.50 BSF_RULE_7582B Custom Rule 7582B X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart2255904.frkgb0dbxY Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable On Samstag, 12. Juni 2010 Eric Sandeen wrote: > > I got this message after making a "du -s" on the new disks: > > du: cannot access > > `samba/backup/uranus/WindowsImageBackup/uranus/Backup 2010-06-05 > > 010014/852c2690-cf1a-11de-b09b-806e6f6e6963.vhd': Structure needs > > cleaning >=20 > dmesg would be the right thing to do here ... Here a similar problem on the original server, with the file=20 /disks/daten/samba/tmp/installtemp/askalani-20100526.tib This is the server that crashed, so I forgive XFS the error. It looks the same to me, and I wonder if I triggered a bug somewhere. dmesg says: [167981.222124] Filesystem "dm-0": corrupt inode 2267035928 ((a)extents =3D= 7). Unmount and run xfs_repair. = =20 [167981.222130] ffff8800c068c800: 49 4e 81 fc 02 02 00 00 00 00 04 e5 00 00= 00 64 IN.............d = =20 [167981.222134] Filesystem "dm-0": XFS internal error xfs_iformat_extents(1= ) at line 558 of file /usr/src/packages/BUILD/kernel-xen-2.6.31.12/linux-2.= 6.31/fs/xfs/xfs_inode.c. Caller 0xffffffffa019c44d [167981.222136] = = =20 [167981.222140] Pid: 13802, comm: ls Not tainted 2.6.31.12-0.2-xen #1 = = =20 [167981.222142] Call Trace: = = =20 [167981.222156] [] try_stack_unwind+0x189/0x1b0 = = =20 [167981.222163] [] dump_trace+0xa6/0x1e0 = = =20 [167981.222167] [] show_trace_log_lvl+0x64/0x90 = = =20 [167981.222171] [] show_trace+0x23/0x40 = = =20 [167981.222176] [] dump_stack+0x81/0x9e = = =20 [167981.222213] [] xfs_error_report+0x5a/0x70 [xfs] = = =20 [167981.222309] [] xfs_corruption_error+0x6c/0x90 [xfs] = = =20 [167981.222355] [] xfs_iformat_extents+0x234/0x280 [xfs]= = =20 [167981.222407] [] xfs_iformat+0x28d/0x5a0 [xfs] = = =20 [167981.222458] [] xfs_iread+0x182/0x1c0 [xfs] = = =20 [167981.222541] [] xfs_iget_cache_miss+0x78/0x200 [xfs] = = =20 [167981.222590] [] xfs_iget+0x129/0x1d0 [xfs] = = =20 [167981.222640] [] xfs_lookup+0xce/0x100 [xfs] = = =20 [167981.222711] [] xfs_vn_lookup+0x6c/0xc0 [xfs] = = =20 [167981.222825] [] real_lookup+0x102/0x180 = = =20 [167981.222830] [] do_lookup+0xd0/0x100 = = =20 [167981.222835] [] __link_path_walk+0x7f8/0xf40 = = =20 [167981.222838] [] path_walk+0x66/0xd0 = = =20 [167981.222842] [] do_path_lookup+0x6b/0xb0 = = =20 [167981.222846] [] user_path_at+0x61/0xc0 = = =20 [167981.222850] [] vfs_fstatat+0x41/0x90 = = =20 [167981.222853] [] vfs_lstat+0x2c/0x50 = = =20 [167981.222857] [] sys_newlstat+0x2e/0x70 = = =20 [167981.222861] [] system_call_fastpath+0x16/0x1b = = =20 [167981.222870] [<00007f9decb1ce65>] 0x7f9decb1ce65 =20 = =20 [167985.423311] Filesystem "dm-0": corrupt inode 2267035928 ((a)extents =3D= 7). Unmount and run xfs_repair. = =20 [167985.423317] ffff8800c068c800: 49 4e 81 fc 02 02 00 00 00 00 04 e5 00 00= 00 64 IN.............d = =20 [167985.423322] Filesystem "dm-0": XFS internal error xfs_iformat_extents(1= ) at line 558 of file /usr/src/packages/BUILD/kernel-xen-2.6.31.12/linux-2.= 6.31/fs/xfs/xfs_inode.c. Caller 0xffffffffa019c44d [167985.423324] = = =20 [167985.423328] Pid: 13803, comm: ls Not tainted 2.6.31.12-0.2-xen #1 = = =20 [167985.423330] Call Trace: [167985.423344] [] try_stack_unwind+0x189/0x1b0 [167985.423397] [] dump_trace+0xa6/0x1e0 [167985.423402] [] show_trace_log_lvl+0x64/0x90 [167985.423406] [] show_trace+0x23/0x40 [167985.423411] [] dump_stack+0x81/0x9e [167985.423446] [] xfs_error_report+0x5a/0x70 [xfs] [167985.423495] [] xfs_corruption_error+0x6c/0x90 [xfs] [167985.423538] [] xfs_iformat_extents+0x234/0x280 [xfs] [167985.423588] [] xfs_iformat+0x28d/0x5a0 [xfs] [167985.423636] [] xfs_iread+0x182/0x1c0 [xfs] [167985.423727] [] xfs_iget_cache_miss+0x78/0x200 [xfs] [167985.423775] [] xfs_iget+0x129/0x1d0 [xfs] [167985.423824] [] xfs_lookup+0xce/0x100 [xfs] [167985.423924] [] xfs_vn_lookup+0x6c/0xc0 [xfs] [167985.423985] [] real_lookup+0x102/0x180 [167985.423991] [] do_lookup+0xd0/0x100 [167985.423995] [] __link_path_walk+0x7f8/0xf40 [167985.423999] [] path_walk+0x66/0xd0 [167985.424003] [] do_path_lookup+0x6b/0xb0 [167985.424007] [] user_path_at+0x61/0xc0 [167985.424011] [] vfs_fstatat+0x41/0x90 [167985.424014] [] vfs_lstat+0x2c/0x50 [167985.424018] [] sys_newlstat+0x2e/0x70 [167985.424022] [] system_call_fastpath+0x16/0x1b [167985.424031] [<00007f56f3525e65>] 0x7f56f3525e65 =2D-=20 mit freundlichen Gr=FCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=E4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart2255904.frkgb0dbxY Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwTjLAACgkQzhSR9xwSCbRdIwCbBFHSaOFKFd2edZZP37N7nSbS 6vUAn1uEnz3tQQf3ZgTmkGO5ake8ywYM =x30q -----END PGP SIGNATURE----- --nextPart2255904.frkgb0dbxY-- From officer.info@loanofficer.com Sat Jun 12 14:52:27 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: **** X-Spam-Status: No, score=4.0 required=5.0 tests=BAYES_99 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5CJqRgW215074 for ; Sat, 12 Jun 2010 14:52:27 -0500 X-ASG-Debug-ID: 1276372499-2c0500090000-w1Z2WR X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.prestige.lk (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id D8CFC1B725A7 for ; Sat, 12 Jun 2010 12:55:00 -0700 (PDT) Received: from mail.prestige.lk (mail.prestige.lk [122.255.5.178]) by cuda.sgi.com with ESMTP id B62lpj24rk62BK3z for ; Sat, 12 Jun 2010 12:55:00 -0700 (PDT) Received: from mail.prestige.lk (mail.prestige.lk [127.0.0.1]) by mail.prestige.lk (Postfix) with ESMTP id BD88C40C280; Sat, 12 Jun 2010 23:35:16 +0530 (IST) Received: from 116.197.92.85 (SquirrelMail authenticated user spam) by mail.prestige.lk with HTTP; Sat, 12 Jun 2010 23:35:16 +0530 (IST) Message-ID: <52791.116.197.92.85.1276365916.squirrel@mail.prestige.lk> Date: Sat, 12 Jun 2010 23:35:16 +0530 (IST) X-ASG-Orig-Subj: Subject: From: "Financial Source" Reply-To: intloans@rediffmail.com User-Agent: SquirrelMail/1.4.11-1.fc8 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal To: undisclosed-recipients:; X-ISP-MailScanner-Information: Please contact the ISP for more information X-ISP-MailScanner-ID: BD88C40C280.061CB X-ISP-MailScanner: Found to be clean X-ISP-MailScanner-From: officer.info@loanofficer.com X-Barracuda-Connect: mail.prestige.lk[122.255.5.178] X-Barracuda-Start-Time: 1276372501 X-Barracuda-Bayes: INNOCENT GLOBAL 0.4232 1.0000 0.0000 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: 1.29 X-Barracuda-Spam-Status: No, SCORE=1.29 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=MISSING_SUBJECT, MISSING_SUBJECT_2 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32355 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 MISSING_SUBJECT Missing Subject: header 1.28 MISSING_SUBJECT_2 Missing Subject: header X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Are you in debt? 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From SRS0+rtpy+13+fromorbit.com=david@internode.on.net Sun Jun 13 17:45:26 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5DMjPGk007222 for ; Sun, 13 Jun 2010 17:45:26 -0500 X-ASG-Debug-ID: 1276469279-08a501e10000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 2B0203C367A for ; Sun, 13 Jun 2010 15:47:59 -0700 (PDT) Received: from mail.internode.on.net (bld-mail15.adl6.internode.on.net [150.101.137.100]) by cuda.sgi.com with ESMTP id re6qNPeGE6hWfrkv for ; Sun, 13 Jun 2010 15:47:59 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 16186656-1927428 for multiple; Mon, 14 Jun 2010 08:17:54 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1ONvy4-0001h6-9T; Mon, 14 Jun 2010 08:47:52 +1000 Date: Mon, 14 Jun 2010 08:47:52 +1000 From: Dave Chinner To: Ilia Mirkin Cc: Roman Kononov , xfs@oss.sgi.com, linux-kernel@vger.kernel.org X-ASG-Orig-Subj: Re: WARNING in xfs_lwr.c, xfs_write() Subject: Re: WARNING in xfs_lwr.c, xfs_write() Message-ID: <20100613224752.GA2069@dastard> References: <20100523002023.41f5a5c8@aaa.pulp.binarylife.net> <20100523101856.GL2150@dastard> <20100523092344.0fcaab42@aaa.pulp.binarylife.net> <20100524011907.GC12087@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail15.adl6.internode.on.net[150.101.137.100] X-Barracuda-Start-Time: 1276469281 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.52 X-Barracuda-Spam-Status: No, SCORE=-1.52 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_RULE7568M X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32459 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.50 BSF_RULE7568M Custom Rule 7568M X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Sat, Jun 12, 2010 at 01:00:52AM -0400, Ilia Mirkin wrote: > Sorry to pick up an old-ish thread, but I have a similar situation: > > On Sun, May 23, 2010 at 9:19 PM, Dave Chinner wrote: > > On Sun, May 23, 2010 at 09:23:44AM -0500, Roman Kononov wrote: > >> On 2010-05-23, 20:18:56 +1000, Dave Chinner wrote: > >> > Can you find out what the application is triggering this? > > I noticed this happening with mysql and xtrabackup -- the latter opens > up mysql's files while mysql is still running (and modifying its own > files) and backs them up in a (hopefully) safe way. That's not safe at all - there's no guarantee you'll end up with a consistent database image doing backups like this. Have you ever tried to restore and use one of these backups? > mysql had been > running on the machine without any such warnings for a while before we > ran the backup, so I'm pretty sure that the backup is involved, > although its process is never listed. Specifically the warning is: > > [2584257.839386] ------------[ cut here ]------------ > [2584257.839395] WARNING: at fs/xfs/linux-2.6/xfs_lrw.c:651 > xfs_write+0x3dc/0x784() > [2584257.839398] Hardware name: PowerEdge R710 > [2584257.839399] Modules linked in: nfsd cifs iTCO_wdt iTCO_vendor_support > [2584257.839406] Pid: 7761, comm: mysqld Not tainted 2.6.33-gentoo-r2 #1 > [2584257.839407] Call Trace: > [2584257.839411] [] ? xfs_write+0x3dc/0x784 > [2584257.839415] [] warn_slowpath_common+0x77/0xa4 > [2584257.839417] [] warn_slowpath_null+0xf/0x11 > [2584257.839419] [] xfs_write+0x3dc/0x784 > [2584257.839424] [] ? apic_timer_interrupt+0xe/0x20 > [2584257.839427] [] xfs_file_aio_write+0x5a/0x5c > [2584257.839430] [] do_sync_write+0xc0/0x106 > [2584257.839435] [] ? __fsnotify_parent+0xc7/0xd3 > [2584257.839437] [] vfs_write+0xab/0x105 > [2584257.839439] [] sys_pwrite64+0x5c/0x7d > [2584257.839442] [] system_call_fastpath+0x16/0x1b > [2584257.839444] ---[ end trace 8b0c2a6e5e86745f ]--- > > > Yes, it should be safe, but the kernel code can't know whether this > > is true or not - there are no specific interlocks with direct IO to > > prevent concurrent buffered IO to the same region while a direct IO > > is in progress. XFS does best effort attempts to maintain coherency > > does not provide any guarantees, hence the warning when known race > > conditions are tripped. > > Would it be safe to remove the warning at > fs/xfs/linux-2.6/xfs_lrw.c:651 (which looks like it has moved to > xfs_file.c in 2.6.34)? It seems undesirable to get a long stream of > these (51 in this particular instance) every time we run a backup... You can if you want, but then you won't know when your backup or database might have been corrupted, right? > IOW, is the warning purely something along the lines of "Userspace is > doing something wonky, but the underlying FS will still be fine no > matter what" kind of deal, or could there be an actual problem with > the XFS metadata itself? Nothing wrong with the filesystem metadata will occur - as I said eariler in the thread that this is a warning to tell us that data corruption is possible due to userspace doing something stupid, not a filesystem bug. Cheers, Dave. -- Dave Chinner david@fromorbit.com From ibmirkin@gmail.com Sun Jun 13 18:07:57 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,T_DKIM_INVALID autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5DN7uMP008721 for ; Sun, 13 Jun 2010 18:07:57 -0500 X-ASG-Debug-ID: 1276470835-14f900900000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail-vw0-f53.google.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 71D5612ABE63 for ; Sun, 13 Jun 2010 16:13:56 -0700 (PDT) Received: from mail-vw0-f53.google.com (mail-vw0-f53.google.com [209.85.212.53]) by cuda.sgi.com with ESMTP id Sn0iF2qgAAT91Fj0 for ; Sun, 13 Jun 2010 16:13:56 -0700 (PDT) Received: by vws19 with SMTP id 19so94927vws.26 for ; Sun, 13 Jun 2010 16:10:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:sender:received :in-reply-to:references:date:x-google-sender-auth:message-id:subject :from:to:cc:content-type; bh=x6XqrVM9IuIClON5EkK5hyikJvmPyLVhAknJGhq7IvA=; b=bIY9sowZIEkS2V5vOOWYyIHpO5oS+GVMATlyPjCoF9QgrtjTz34vYF6JvFGycJEEeq ZkJLMXvTyVvf/hRwaJ20rRiI3agitY7CZY0UmGjSgkZXxsq/3sHbm/VFb6p4BnK4EnMT 0nasqIHCezhwEGLjLwxqBsKJwGdEi4fd3q6aM= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; b=A1y73tOdKamrBU7R0GG6Zc5KRf3TNN+uCYucVQhtq90tCTgB0iGorzgMk4mqsI1uV1 dluIA7mb21dE0sl0hEObzmYBGavKlMA6mtb6anP10Kg9Pf6uxFLh/OALzu0GLjRMTlIz VQYsj0dKXQtFOc8KU28KgRU2FzWUNrLCflNW8= MIME-Version: 1.0 Received: by 10.220.63.4 with SMTP id z4mr2256655vch.105.1276470630239; Sun, 13 Jun 2010 16:10:30 -0700 (PDT) Sender: ibmirkin@gmail.com Received: by 10.220.87.71 with HTTP; Sun, 13 Jun 2010 16:10:30 -0700 (PDT) In-Reply-To: <20100613224752.GA2069@dastard> References: <20100523002023.41f5a5c8@aaa.pulp.binarylife.net> <20100523101856.GL2150@dastard> <20100523092344.0fcaab42@aaa.pulp.binarylife.net> <20100524011907.GC12087@dastard> <20100613224752.GA2069@dastard> Date: Sun, 13 Jun 2010 19:10:30 -0400 X-Google-Sender-Auth: sTsrjJNEjS2_Cw_TtywoeesLZPs Message-ID: X-ASG-Orig-Subj: Re: WARNING in xfs_lwr.c, xfs_write() Subject: Re: WARNING in xfs_lwr.c, xfs_write() From: Ilia Mirkin To: Dave Chinner Cc: Roman Kononov , xfs@oss.sgi.com, linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 X-Barracuda-Connect: mail-vw0-f53.google.com[209.85.212.53] X-Barracuda-Start-Time: 1276470836 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32462 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 X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Sun, Jun 13, 2010 at 6:47 PM, Dave Chinner wrote: > On Sat, Jun 12, 2010 at 01:00:52AM -0400, Ilia Mirkin wrote: >> Sorry to pick up an old-ish thread, but I have a similar situation: >> >> On Sun, May 23, 2010 at 9:19 PM, Dave Chinner wrote: >> > On Sun, May 23, 2010 at 09:23:44AM -0500, Roman Kononov wrote: >> >> On 2010-05-23, 20:18:56 +1000, Dave Chinner wrote: >> >> > Can you find out what the application is triggering this? >> >> I noticed this happening with mysql and xtrabackup -- the latter opens >> up mysql's files while mysql is still running (and modifying its own >> files) and backs them up in a (hopefully) safe way. > > That's not safe at all - there's no guarantee you'll end up with a > consistent database image doing backups like this. Have you ever > tried to restore and use one of these backups? Yep, works great. [Used it to initialize a slave, did the full checksums, so it's unlikely to have randomly corrupt data.] It's the only credible way to backup a sizeable mysql db, since it works online with InnoDB; the other options involve either only using MyISAM (non-transactional) or locking the db for the duration (we couldn't wait that long, but attempting to do it on a backup machine looked like it was going to take somewhere between 3 and 7 days, although we gave up after 24 hours... not something we can afford to do with any kind of regularity). >> >> Would it be safe to remove the warning at >> fs/xfs/linux-2.6/xfs_lrw.c:651 (which looks like it has moved to >> xfs_file.c in 2.6.34)? It seems undesirable to get a long stream of >> these (51 in this particular instance) every time we run a backup... > > You can if you want, but then you won't know when your backup or > database might have been corrupted, right? No, but I wouldn't know that without the warnings either -- for all I know xtrabackup could be buggy in all kinds of ways. The only real way to check is to use the backup data in some way. > >> IOW, is the warning purely something along the lines of "Userspace is >> doing something wonky, but the underlying FS will still be fine no >> matter what" kind of deal, or could there be an actual problem with >> the XFS metadata itself? > > Nothing wrong with the filesystem metadata will occur - as I said > eariler in the thread that this is a warning to tell us that data > corruption is possible due to userspace doing something stupid, not > a filesystem bug. OK, thanks for the clarification. Ideally these wouldn't taint the kernel either -- perhaps these can be downgraded to a message that explicitly suggests that nothing is wrong with kernel-space things, only user-space? The backtrace doesn't really get you much, so really all you want to show is the offending process... Thanks, Ilia Mirkin imirkin@alum.mit.edu From SRS0+JKmZ+14+fromorbit.com=david@internode.on.net Sun Jun 13 19:25:00 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_28 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5E0P0Kw011098 for ; Sun, 13 Jun 2010 19:25:00 -0500 X-ASG-Debug-ID: 1276475253-2fee028f0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 4F0841BDA109 for ; Sun, 13 Jun 2010 17:27:33 -0700 (PDT) Received: from mail.internode.on.net (bld-mail17.adl2.internode.on.net [150.101.137.102]) by cuda.sgi.com with ESMTP id WCxHSlAM2KWIRDRo for ; Sun, 13 Jun 2010 17:27:33 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27624179-1927428 for multiple; Mon, 14 Jun 2010 09:57:07 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1ONxW6-0001lK-2I; Mon, 14 Jun 2010 10:27:06 +1000 Date: Mon, 14 Jun 2010 10:27:06 +1000 From: Dave Chinner To: Tao Ma Cc: xfs@oss.sgi.com, linux-kernel@vger.kernel.org, sandeen@sandeen.net, Alex Elder , Christoph Hellwig X-ASG-Orig-Subj: Re: [PATCH v2] xfs: Make fiemap works with sparse file. Subject: Re: [PATCH v2] xfs: Make fiemap works with sparse file. Message-ID: <20100614002705.GA6590@dastard> References: <1276308495-14267-1-git-send-email-tao.ma@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1276308495-14267-1-git-send-email-tao.ma@oracle.com> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail17.adl2.internode.on.net[150.101.137.102] X-Barracuda-Start-Time: 1276475255 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32467 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Sat, Jun 12, 2010 at 10:08:15AM +0800, Tao Ma wrote: > In xfs_vn_fiemap, we set bvm_count to fi_extent_max + 1 and want > to return fi_extent_max extents, but actually it won't work for > a sparse file. Define "won't work". i.e. what's the test case? I just created a sparse file and checked it, and it reported all the extents in it: # xfs_bmap -vp testfile testfile: EXT: FILE-OFFSET BLOCK-RANGE AG AG-OFFSET TOTAL FLAGS 0: [0..7]: hole 8 1: [8..15]: 96..103 0 (96..103) 8 00000 2: [16..23]: hole 8 3: [24..31]: 112..119 0 (112..119) 8 00000 4: [32..39]: hole 8 5: [40..47]: 128..135 0 (128..135) 8 00000 6: [48..55]: hole 8 7: [56..63]: 144..151 0 (144..151) 8 00000 8: [64..71]: hole 8 9: [72..79]: 160..167 0 (160..167) 8 00000 10: [80..87]: hole 8 11: [88..95]: 176..183 0 (176..183) 8 00000 12: [96..103]: hole 8 13: [104..111]: 192..199 0 (192..199) 8 00000 14: [112..119]: hole 8 15: [120..127]: 208..215 0 (208..215) 8 00000 # filefrag -v testfile Filesystem type is: 58465342 File size of testfile is 65536 (16 blocks, blocksize 4096) ext logical physical expected length flags 0 1 12 1 1 3 14 12 1 2 5 16 14 1 3 7 18 16 1 4 9 20 18 1 5 11 22 20 1 6 13 24 22 1 7 15 26 24 1 eof testfile: 9 extents found # FWIW, filefrag seems busted - the file has 8 extents, not 9. For a more fragmented sparse file (25,000 extents): # for i in `seq 1 2 50000`; do dd if=/dev/zero of=testfile bs=4k count=1 seek=$i; done .... # xfs_bmap -vp testfile | grep -v hole | wc -l 25002 # filefrag -v testfile |tail -1 testfile: 25001 extents found So taking away the 2 header lines from xfs_bmap output we have 25000 extents, and filefrag has over-counted by one again. However, we are we are definitely finding all the extents through fiemap... > The reason is that in xfs_getbmap we will > calculate holes and set it in 'out', while out is malloced by > bmv_count(fi_extent_max+1) which didn't consider holes. So in the > worst case, if 'out' vector looks like > [hole, extent, hole, extent, hole, ... hole, extent, hole], > we will only return half of fi_extent_max extents. Right, it's not broken, we simply return less than fi_extent_mex extents when there are holes. I don't see that as a problem as applications have to handle that case anyway, and.... > So in xfs_vn_fiemap, we should consider this worst case. If the > user wants fi_extent_max extents, we need a 'out' with size of > 2 *fi_extent_max + 2(one more the header). That's rather dangerous, I think. It relies on other code to catch the buffer overrun that this sets up for fragmented, non-sparse files. Personally I'd much prefer to return fewer extents for sparse files than to add a landmine like this into the kernel code.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0+wWFy+14+fromorbit.com=david@internode.on.net Sun Jun 13 20:27:07 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5E1R6qV013123 for ; Sun, 13 Jun 2010 20:27:07 -0500 X-ASG-Debug-ID: 1276478979-758402c00000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 5C3AA1BDA31A for ; Sun, 13 Jun 2010 18:29:40 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id jCvHy3O6EqwW6mFh for ; Sun, 13 Jun 2010 18:29:40 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27909122-1927428 for multiple; Mon, 14 Jun 2010 10:59:35 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1ONyUX-0001o0-Hg; Mon, 14 Jun 2010 11:29:33 +1000 Date: Mon, 14 Jun 2010 11:29:33 +1000 From: Dave Chinner To: Ilia Mirkin Cc: Roman Kononov , xfs@oss.sgi.com, linux-kernel@vger.kernel.org X-ASG-Orig-Subj: Re: WARNING in xfs_lwr.c, xfs_write() Subject: Re: WARNING in xfs_lwr.c, xfs_write() Message-ID: <20100614012933.GB6590@dastard> References: <20100523002023.41f5a5c8@aaa.pulp.binarylife.net> <20100523101856.GL2150@dastard> <20100523092344.0fcaab42@aaa.pulp.binarylife.net> <20100524011907.GC12087@dastard> <20100613224752.GA2069@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1276478981 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32471 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Sun, Jun 13, 2010 at 07:10:30PM -0400, Ilia Mirkin wrote: > On Sun, Jun 13, 2010 at 6:47 PM, Dave Chinner wrote: > > On Sat, Jun 12, 2010 at 01:00:52AM -0400, Ilia Mirkin wrote: > >> Sorry to pick up an old-ish thread, but I have a similar situation: > >> > >> On Sun, May 23, 2010 at 9:19 PM, Dave Chinner wrote: > >> > On Sun, May 23, 2010 at 09:23:44AM -0500, Roman Kononov wrote: > >> >> On 2010-05-23, 20:18:56 +1000, Dave Chinner wrote: > >> >> > Can you find out what the application is triggering this? > >> > >> I noticed this happening with mysql and xtrabackup -- the latter opens > >> up mysql's files while mysql is still running (and modifying its own > >> files) and backs them up in a (hopefully) safe way. > > > > That's not safe at all - there's no guarantee you'll end up with a > > consistent database image doing backups like this. Have you ever > > tried to restore and use one of these backups? > > Yep, works great. [Used it to initialize a slave, did the full > checksums, so it's unlikely to have randomly corrupt data.] You were lucky, I'd say. xtrabackup is supposed to be tightly integrated with mysql, so perhaps it should be using the same IO methods that the admin has selected for their database. Maybe you need to talk to the xtrabackup folks to get them to add a "backup via direct IO" method if the mysql database is using direct IO so that other uses don't have the same issues. > >> Would it be safe to remove the warning at > >> fs/xfs/linux-2.6/xfs_lrw.c:651 (which looks like it has moved to > >> xfs_file.c in 2.6.34)? It seems undesirable to get a long stream of > >> these (51 in this particular instance) every time we run a backup... > > > > You can if you want, but then you won't know when your backup or > > database might have been corrupted, right? > > No, but I wouldn't know that without the warnings either -- for all I > know xtrabackup could be buggy in all kinds of ways. The only real way > to check is to use the backup data in some way. Yup, but you still can't rely on the backup for disaster recovery without first doing a full application level consistency check it if one of these warnings was generated while it was being taken. > >> IOW, is the warning purely something along the lines of "Userspace is > >> doing something wonky, but the underlying FS will still be fine no > >> matter what" kind of deal, or could there be an actual problem with > >> the XFS metadata itself? > > > > Nothing wrong with the filesystem metadata will occur - as I said > > eariler in the thread that this is a warning to tell us that data > > corruption is possible due to userspace doing something stupid, not > > a filesystem bug. > > OK, thanks for the clarification. Ideally these wouldn't taint the > kernel either Why not? Something has potentially compromised the integrity of the system and that's exactly what the taint flag is there for. > -- perhaps these can be downgraded to a message that > explicitly suggests that nothing is wrong with kernel-space things, > only user-space? The backtrace doesn't really get you much, so really > all you want to show is the offending process... They are there to be meaningful to the XFS developer, not the user, and it conveys all the information we need to start a deeper investigation. IOWs, it's a defensive mechanism that we have in place because direct IO is effectively handing responsibility for data integrity to userspace. Hence when userspace is doing something obviously dangerous to data integrity we want loud, noticable warnings so that the filesystem is not blamed for the data corruption that will inevitably occur. And from a "I read it on the interwebs so it must be true" perspective, without a loud obnoxious warning we'll never hear about problems until someone flames us about silent data corruption on a random blog that gets slashdotted and then referenced for the next 10 years as the next canonical "XFS eats my data!" reference for the clueless.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From ibmirkin@gmail.com Sun Jun 13 22:25:25 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,T_DKIM_INVALID autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5E3POu4016745 for ; Sun, 13 Jun 2010 22:25:24 -0500 X-ASG-Debug-ID: 1276486079-698101030000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail-vw0-f53.google.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 2FC0714CC22E for ; Sun, 13 Jun 2010 20:27:59 -0700 (PDT) Received: from mail-vw0-f53.google.com (mail-vw0-f53.google.com [209.85.212.53]) by cuda.sgi.com with ESMTP id MFVXqZ6Lb9xAtDZk for ; Sun, 13 Jun 2010 20:27:59 -0700 (PDT) Received: by vws19 with SMTP id 19so344450vws.26 for ; Sun, 13 Jun 2010 20:27:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:sender:received :in-reply-to:references:date:x-google-sender-auth:message-id:subject :from:to:cc:content-type:content-transfer-encoding; bh=0NPiPc4Bp06OcEINEzAqtATq6Y4Zo1y5dnVoAYnP+5o=; b=XsdcEOegZ+BFMPasgBkJjYJf73tdCwLB37J3oGnVQn73MOOafGLO51OPZ7r9Y9irD8 GL2fn3FIWzCGRiU+h2w4yQEbnIQ/LjE9dJszrsGOdhl2Sg928HQXSKZS4Vnr5DLKOpv/ kno8oUgGyty/C+vg1LLIE/QB4l9DBIeKv3YHY= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; b=UM7qZbeXd912Fi0XGXNKFV5F4Ur+Wikxu8uGDRLsShTAy0t8W/xDJIj9bdCvxOfL82 5z1o3BoOWRppyVqUISsTCXEO9oWI9ms/EvbGeNFxOG0rsJfopcENg3M/ZvamdzZjrCQ8 f2/tPZvhgCix+SREnmInmBO5m0vUclw4RAP+g= MIME-Version: 1.0 Received: by 10.220.121.210 with SMTP id i18mr2362110vcr.148.1276486079059; Sun, 13 Jun 2010 20:27:59 -0700 (PDT) Sender: ibmirkin@gmail.com Received: by 10.220.87.71 with HTTP; Sun, 13 Jun 2010 20:27:59 -0700 (PDT) In-Reply-To: <20100614012933.GB6590@dastard> References: <20100523002023.41f5a5c8@aaa.pulp.binarylife.net> <20100523101856.GL2150@dastard> <20100523092344.0fcaab42@aaa.pulp.binarylife.net> <20100524011907.GC12087@dastard> <20100613224752.GA2069@dastard> <20100614012933.GB6590@dastard> Date: Sun, 13 Jun 2010 23:27:59 -0400 X-Google-Sender-Auth: 5mJr9-OUf7xUK9yLZLA4q3U9Dm0 Message-ID: X-ASG-Orig-Subj: Re: WARNING in xfs_lwr.c, xfs_write() Subject: Re: WARNING in xfs_lwr.c, xfs_write() From: Ilia Mirkin To: Dave Chinner Cc: Roman Kononov , xfs@oss.sgi.com, linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail-vw0-f53.google.com[209.85.212.53] X-Barracuda-Start-Time: 1276486080 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32479 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 X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Sun, Jun 13, 2010 at 9:29 PM, Dave Chinner wrote: > On Sun, Jun 13, 2010 at 07:10:30PM -0400, Ilia Mirkin wrote: >> On Sun, Jun 13, 2010 at 6:47 PM, Dave Chinner wrot= e: >> > On Sat, Jun 12, 2010 at 01:00:52AM -0400, Ilia Mirkin wrote: >> >> Sorry to pick up an old-ish thread, but I have a similar situation: >> >> >> >> On Sun, May 23, 2010 at 9:19 PM, Dave Chinner w= rote: >> >> > On Sun, May 23, 2010 at 09:23:44AM -0500, Roman Kononov wrote: >> >> >> On 2010-05-23, 20:18:56 +1000, Dave Chinner = wrote: >> >> >> > Can you find out what the application is triggering this? >> >> >> >> I noticed this happening with mysql and xtrabackup -- the latter open= s >> >> up mysql's files while mysql is still running (and modifying its own >> >> files) and backs them up in a (hopefully) safe way. >> > >> > That's not safe at all - there's no guarantee you'll end up with a >> > consistent database image doing backups like this. Have you ever >> > tried to restore and use one of these backups? >> >> Yep, works great. [Used it to initialize a slave, did the full >> checksums, so it's unlikely to have randomly corrupt data.] > > You were lucky, I'd say. =A0xtrabackup is supposed to be tightly > integrated with mysql, so perhaps it should be using the same IO > methods that the admin has selected for their database. Maybe you > need to talk to the xtrabackup folks to get them to add a "backup > via direct IO" method if the mysql database is using direct IO so > that other uses don't have the same issues. Maybe. We've been using this technique, although on a different physical machine and with ext3, for quite some time (and we verify all backups). I did notice that there is a minor difference in configuration, esp wrt direct IO, so I'll check it out in more detail. [We're now setting innodb_flush_method to O_DIRECT whereas we weren't before... although based on the documentation and a cursory understanding of how xtrabackup works, this shouldn't be harmful.] > And from a "I read it on the interwebs so it must be true" > perspective, without a loud obnoxious warning we'll never hear about > problems until someone flames us about silent data corruption on a > random blog that gets slashdotted and then referenced for the next > 10 years as the next canonical "XFS eats my data!" reference for the > clueless.... Instead it will be "mysql works fine on ext3, but with xfs it spams the logs with warnings, therefore xfs must be broken". I don't think there's anything realistically that you can do about uninformed users and FUD. Although I wasn't suggesting to get rid of the warning, rather to make it more explicit as to what it's warning about. I interpret a WARN as a BUG that can be recovered but where the underlying system needs a careful look; my first inclination after seeing a fs-related WARN would be to take the system down and run an fsck. What's happening here seems more akin to getting a WARN when calling an ioctl with invalid parameters. --- Ilia Mirkin imirkin@alum.mit.edu From SRS0+scHK+14+fromorbit.com=david@internode.on.net Sun Jun 13 23:25:11 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,J_CHICKENPOX_63, J_CHICKENPOX_65,J_CHICKENPOX_73 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5E4PBSt019851 for ; Sun, 13 Jun 2010 23:25:11 -0500 X-ASG-Debug-ID: 1276489664-694f00e10000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id A25553C3B93 for ; Sun, 13 Jun 2010 21:27:45 -0700 (PDT) Received: from mail.internode.on.net (bld-mail19.adl2.internode.on.net [150.101.137.104]) by cuda.sgi.com with ESMTP id 8XqUuHUUdycX80IG for ; Sun, 13 Jun 2010 21:27:45 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27673154-1927428 for multiple; Mon, 14 Jun 2010 13:57:02 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OO1GG-0001vn-9P; Mon, 14 Jun 2010 14:27:00 +1000 Date: Mon, 14 Jun 2010 14:27:00 +1000 From: Dave Chinner To: Andi Kleen Cc: xfs@oss.sgi.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org X-ASG-Orig-Subj: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Subject: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Message-ID: <20100614042700.GC6590@dastard> References: <20100610110.764742110@firstfloor.org> <20100610111052.3DDC5B1A2B@basil.firstfloor.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100610111052.3DDC5B1A2B@basil.firstfloor.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail19.adl2.internode.on.net[150.101.137.104] X-Barracuda-Start-Time: 1276489666 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32483 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu, Jun 10, 2010 at 01:10:52PM +0200, Andi Kleen wrote: > > For my configuration, that is without quota or RT. > > Mostly dead code removed I think (but needs additional review) > > That is there were one or two bad error handling cases, > but they were not easily fixable, with comments > and I left the warnings in for those for you to remember. > > e.g. if there is a ENOSPC down in xfs_trans.c while > modifying the superblock it would not be handled. See my comments about these below. > Unused statements were mostly related to stub macros for disabled > features like QUOTA or RT ALLOC. I replace those with > inlines. Did you compile with/without XFS_DEBUG (I don't think so)? when changing code that affects ASSERT statements, CONFIG_XFS_DEBUG needs to be selected to test that this code compiles. Most XFs developers build with XFS_CONFIG_DEBUG for everything other than performance testing, so ensuring this builds is definitely required. ;) I'd also be interested if any fixes are needed with all options enabled. Seems silly just to fix a few warnings in just one particular configuration rather than all of them... > There were also some problems with variables used in ASSERT() > I partly moved those into the ASSERT itself and partly > used a new QASSERT that always evaluates. That's a pretty ugly hack for a single occurrence of a warning. Re-arrnaging the code is a much better idea than introducing a new ASSERT type. e.g: - ASSERT(ref >= 0); + if (ref < 0) + ASSERT(0); > Cc: xfs@oss.sgi.com > > Signed-off-by: Andi Kleen > > --- > fs/xfs/linux-2.6/xfs_sync.c | 3 +++ > fs/xfs/support/debug.h | 4 ++++ > fs/xfs/xfs_alloc.c | 10 +++------- > fs/xfs/xfs_da_btree.c | 15 +++++---------- > fs/xfs/xfs_dir2_block.c | 6 +++--- > fs/xfs/xfs_filestream.c | 10 ++-------- > fs/xfs/xfs_iget.c | 3 --- > fs/xfs/xfs_inode.c | 4 ---- > fs/xfs/xfs_inode_item.c | 8 ++------ > fs/xfs/xfs_log.c | 2 -- > fs/xfs/xfs_quota.h | 14 ++++++++++---- > fs/xfs/xfs_trans.c | 1 + > 12 files changed, 33 insertions(+), 47 deletions(-) > > Index: linux-2.6.35-rc2-gcc/fs/xfs/linux-2.6/xfs_sync.c > =================================================================== > --- linux-2.6.35-rc2-gcc.orig/fs/xfs/linux-2.6/xfs_sync.c > +++ linux-2.6.35-rc2-gcc/fs/xfs/linux-2.6/xfs_sync.c > @@ -554,6 +554,9 @@ xfs_sync_worker( > xfs_log_force(mp, 0); > xfs_reclaim_inodes(mp, 0); > /* dgc: errors ignored here */ > + /* ak: yes and you'll get a warning for it now when you > + * upgrade compilers. > + */ > error = xfs_qm_sync(mp, SYNC_TRYLOCK); > if (xfs_log_need_covered(mp)) > error = xfs_commit_dummy_trans(mp, 0); I don't think the coment is necessary - the compiler will remind us that we are ignoring errors. FWIW, we've now got a situation where external static code checkers will tell us that we are not handling an error case (which is where this code and comment came from), and now the compiler will warn us we are assigning but not using the return value. It's a bit of a Catch-22 situation. Hence my question is this - how are we supposed to "safely" ignore a return value seeing as the compiler is now making the current method rather noisy? > Index: linux-2.6.35-rc2-gcc/fs/xfs/xfs_da_btree.c > =================================================================== > --- linux-2.6.35-rc2-gcc.orig/fs/xfs/xfs_da_btree.c > +++ linux-2.6.35-rc2-gcc/fs/xfs/xfs_da_btree.c > @@ -581,10 +581,8 @@ xfs_da_node_add(xfs_da_state_t *state, x > xfs_da_intnode_t *node; > xfs_da_node_entry_t *btree; > int tmp; > - xfs_mount_t *mp; > > node = oldblk->bp->data; > - mp = state->mp; > ASSERT(be16_to_cpu(node->hdr.info.magic) == XFS_DA_NODE_MAGIC); > ASSERT((oldblk->index >= 0) && (oldblk->index <= be16_to_cpu(node->hdr.count))); > ASSERT(newblk->blkno != 0); That'll break a CONFIG_XFS_DEBUG build as the next statement: if (state->args->whichfork == XFS_DATA_FORK) ASSERT(newblk->blkno >= mp->m_dirleafblk && newblk->blkno < mp->m_dirfreeblk); uses mp inside ASSERT statements. > Index: linux-2.6.35-rc2-gcc/fs/xfs/xfs_dir2_block.c > =================================================================== > --- linux-2.6.35-rc2-gcc.orig/fs/xfs/xfs_dir2_block.c > +++ linux-2.6.35-rc2-gcc/fs/xfs/xfs_dir2_block.c > @@ -1073,10 +1073,10 @@ xfs_dir2_sf_to_block( > */ > > buf_len = dp->i_df.if_bytes; > - buf = kmem_alloc(dp->i_df.if_bytes, KM_SLEEP); > + buf = kmem_alloc(buf_len, KM_SLEEP); > > - memcpy(buf, sfp, dp->i_df.if_bytes); > - xfs_idata_realloc(dp, -dp->i_df.if_bytes, XFS_DATA_FORK); > + memcpy(buf, sfp, buf_len); > + xfs_idata_realloc(dp, -buf_len, XFS_DATA_FORK); > dp->i_d.di_size = 0; > xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE); > /* Just remove the buf_len variable in this case. > Index: linux-2.6.35-rc2-gcc/fs/xfs/xfs_filestream.c > =================================================================== > --- linux-2.6.35-rc2-gcc.orig/fs/xfs/xfs_filestream.c > +++ linux-2.6.35-rc2-gcc/fs/xfs/xfs_filestream.c > @@ -140,9 +140,8 @@ _xfs_filestream_pick_ag( > int flags, > xfs_extlen_t minlen) > { > - int streams, max_streams; > int err, trylock, nscan; > - xfs_extlen_t longest, free, minfree, maxfree = 0; > + xfs_extlen_t longest, minfree, maxfree = 0; > xfs_agnumber_t ag, max_ag = NULLAGNUMBER; > struct xfs_perag *pag; > > @@ -174,7 +173,6 @@ _xfs_filestream_pick_ag( > /* Keep track of the AG with the most free blocks. */ > if (pag->pagf_freeblks > maxfree) { > maxfree = pag->pagf_freeblks; > - max_streams = atomic_read(&pag->pagf_fstrms); > max_ag = ag; > } > > @@ -196,8 +194,6 @@ _xfs_filestream_pick_ag( > (flags & XFS_PICK_LOWSPACE))) { > > /* Break out, retaining the reference on the AG. */ > - free = pag->pagf_freeblks; > - streams = atomic_read(&pag->pagf_fstrms); > xfs_perag_put(pag); > *agp = ag; > break; > @@ -234,8 +230,6 @@ next_ag: > if (max_ag != NULLAGNUMBER) { > xfs_filestream_get_ag(mp, max_ag); > TRACE_AG_PICK1(mp, max_ag, maxfree); > - streams = max_streams; > - free = maxfree; > *agp = max_ag; > break; > } > @@ -364,7 +358,7 @@ xfs_fstrm_free_func( > /* Drop the reference taken on the AG when the item was added. */ > ref = xfs_filestream_put_ag(ip->i_mount, item->ag); > > - ASSERT(ref >= 0); > + QASSERT(ref >= 0); > TRACE_FREE(ip->i_mount, ip, item->pip, item->ag, > xfs_filestream_peek_ag(ip->i_mount, item->ag)); These are all "unused" because they are used in debug code only. i.e. in XFS_FILESTREAMS_TRACE configs. This is manual debug code that needs to be converted to the trace infrastructure - the compiler may say it is unused, but it is not dead code, so shoul dnot be removed. See also my comment about QASSERT() above. > #define xfs_trans_unreserve_quota_nblks(tp, ip, nblks, ninos, flags) \ > Index: linux-2.6.35-rc2-gcc/fs/xfs/xfs_trans.c > =================================================================== > --- linux-2.6.35-rc2-gcc.orig/fs/xfs/xfs_trans.c > +++ linux-2.6.35-rc2-gcc/fs/xfs/xfs_trans.c > @@ -1120,6 +1120,7 @@ xfs_trans_unreserve_and_mod_sb( > error = xfs_mod_incore_sb_batch(tp->t_mountp, msb, > (uint)(msbp - msb), rsvd); > ASSERT(error == 0); > + /* FIXME: need real error handling here, error can be ENOSPC */ That comment is wrong and hence is not needed. By design, we should never, ever get an error here because we've already reserved all the space we need and this is just an accounting call. That's what the ASSERT(error == 0) is documenting. It's ben placed there to catch any re-occurrence of the race condition that is documented in the function head comment during development. Anyway, if we do get an error here, we cannot handle it anyway - it's too late to do anything short of a complete shutdown as we've already written the transaction to the log. Cheers, Dave. -- Dave Chinner david@fromorbit.com From tao.ma@oracle.com Mon Jun 14 00:52:47 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_66 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5E5qkbd024888 for ; Mon, 14 Jun 2010 00:52:47 -0500 X-ASG-Debug-ID: 1276495128-17cf025b0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from rcsinet10.oracle.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id AB5F312AC3BE for ; Sun, 13 Jun 2010 22:58:48 -0700 (PDT) Received: from rcsinet10.oracle.com (rcsinet10.oracle.com [148.87.113.121]) by cuda.sgi.com with ESMTP id sP4zlytfvxkNo9Wn for ; Sun, 13 Jun 2010 22:58:48 -0700 (PDT) Received: from rcsinet13.oracle.com (rcsinet13.oracle.com [148.87.113.125]) by rcsinet10.oracle.com (Switch-3.4.2/Switch-3.4.1) with ESMTP id o5E5t3sd030395 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 14 Jun 2010 05:55:04 GMT Received: from acsmt354.oracle.com (acsmt354.oracle.com [141.146.40.154]) by rcsinet13.oracle.com (Switch-3.4.2/Switch-3.4.1) with ESMTP id o5E5t1uj017647; Mon, 14 Jun 2010 05:55:01 GMT Received: from abhmt005.oracle.com by acsmt355.oracle.com with ESMTP id 342899651276494798; Sun, 13 Jun 2010 22:53:18 -0700 Received: from [192.168.1.2] (/114.245.231.90) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Sun, 13 Jun 2010 22:53:17 -0700 Message-ID: <4C15C3C7.5090706@oracle.com> Date: Mon, 14 Jun 2010 13:53:11 +0800 From: Tao Ma User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.9) Gecko/20100317 Thunderbird/3.0.4 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com, linux-kernel@vger.kernel.org, sandeen@sandeen.net, Alex Elder , Christoph Hellwig , "tao.ma" X-ASG-Orig-Subj: Re: [PATCH v2] xfs: Make fiemap works with sparse file. Subject: Re: [PATCH v2] xfs: Make fiemap works with sparse file. References: <1276308495-14267-1-git-send-email-tao.ma@oracle.com> <20100614002705.GA6590@dastard> In-Reply-To: <20100614002705.GA6590@dastard> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Auth-Type: Internal IP X-Source-IP: rcsinet13.oracle.com [148.87.113.125] X-CT-RefId: str=0001.0A090206.4C15C439.006A:SCFMA4539811,ss=1,fgs=0 X-Barracuda-Connect: rcsinet10.oracle.com[148.87.113.121] X-Barracuda-Start-Time: 1276495128 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32488 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On 06/14/2010 08:27 AM, Dave Chinner wrote: > On Sat, Jun 12, 2010 at 10:08:15AM +0800, Tao Ma wrote: >> In xfs_vn_fiemap, we set bvm_count to fi_extent_max + 1 and want >> to return fi_extent_max extents, but actually it won't work for >> a sparse file. > > Define "won't work". i.e. what's the test case? I just created a > sparse file and checked it, and it reported all the extents in it: > > # xfs_bmap -vp testfile > testfile: > EXT: FILE-OFFSET BLOCK-RANGE AG AG-OFFSET TOTAL FLAGS > 0: [0..7]: hole 8 > 1: [8..15]: 96..103 0 (96..103) 8 00000 > 2: [16..23]: hole 8 > 3: [24..31]: 112..119 0 (112..119) 8 00000 > 4: [32..39]: hole 8 > 5: [40..47]: 128..135 0 (128..135) 8 00000 > 6: [48..55]: hole 8 > 7: [56..63]: 144..151 0 (144..151) 8 00000 > 8: [64..71]: hole 8 > 9: [72..79]: 160..167 0 (160..167) 8 00000 > 10: [80..87]: hole 8 > 11: [88..95]: 176..183 0 (176..183) 8 00000 > 12: [96..103]: hole 8 > 13: [104..111]: 192..199 0 (192..199) 8 00000 > 14: [112..119]: hole 8 > 15: [120..127]: 208..215 0 (208..215) 8 00000 ok, so let me explain it. In commit 2d1ff3c75a4642062d314634290be6d8da4ffb03, I add the mode for extent query of fiemap for xfs. So with your test file, it will return that we have 8 extents(because in xfs_fiemap_format we don't return holes). So normally and naturally, a user begin to iterate all the extents by doing fiemap = malloc(sizeof(fiemap) + 8 * sizeof(struct fiemap_extent)); fiemap->fm_extent_count = 8 But what will happen? He will only get 4 extent. So do you think it is acceptable for a user? We told him that we have 8 extents, he has allocated enough space, but he can't get what he wanted. And he need to fiemap = malloc(sizeof(fiemap) + 16 * sizeof(struct fiemap_extent)); fiemap->fm_extent_count = 16 to get 8 extent for your test file. > # filefrag -v testfile > Filesystem type is: 58465342 > File size of testfile is 65536 (16 blocks, blocksize 4096) > ext logical physical expected length flags > 0 1 12 1 > 1 3 14 12 1 > 2 5 16 14 1 > 3 7 18 16 1 > 4 9 20 18 1 > 5 11 22 20 1 > 6 13 24 22 1 > 7 15 26 24 1 eof > testfile: 9 extents found > # > > FWIW, filefrag seems busted - the file has 8 extents, not 9. yeah, filefrag is really broken. > >> The reason is that in xfs_getbmap we will >> calculate holes and set it in 'out', while out is malloced by >> bmv_count(fi_extent_max+1) which didn't consider holes. So in the >> worst case, if 'out' vector looks like >> [hole, extent, hole, extent, hole, ... hole, extent, hole], >> we will only return half of fi_extent_max extents. > > Right, it's not broken, we simply return less than fi_extent_mex > extents when there are holes. I don't see that as a problem as > applications have to handle that case anyway, and.... see my above test case. I guess we really don't want a userspace user to allocate num_extents * 2 + 1 fiemap_extent to get them. > >> So in xfs_vn_fiemap, we should consider this worst case. If the >> user wants fi_extent_max extents, we need a 'out' with size of >> 2 *fi_extent_max + 2(one more the header). > > That's rather dangerous, I think. It relies on other code to catch > the buffer overrun that this sets up for fragmented, non-sparse > files. Personally I'd much prefer to return fewer extents for sparse > files than to add a landmine like this into the kernel code.... We just change the size of our 'out', we don't change fi_extent_max or anything related to the fiemap. So I think what we care is how to keep our 'out' in good shape and fiemap should handle and check their fi_extent_max if we pass it more extents. btw, maybe there is a better solution for the problem I described above. If there is a good one, I am happy to accept it. Regards, Tao From andi@firstfloor.org Mon Jun 14 02:40:40 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_65 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5E7ed9D031411 for ; Mon, 14 Jun 2010 02:40:40 -0500 X-ASG-Debug-ID: 1276501392-30ec02a90000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from one.firstfloor.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 613EE1BDA53D for ; Mon, 14 Jun 2010 00:43:12 -0700 (PDT) Received: from one.firstfloor.org (one.firstfloor.org [213.235.205.2]) by cuda.sgi.com with ESMTP id uiBlvHvBjLfseO4n for ; Mon, 14 Jun 2010 00:43:12 -0700 (PDT) Received: from basil.firstfloor.org (p5B3CB7D3.dip0.t-ipconnect.de [91.60.183.211]) by one.firstfloor.org (Postfix) with ESMTP id 7AE4C1A980C3; Mon, 14 Jun 2010 09:43:10 +0200 (CEST) Received: by basil.firstfloor.org (Postfix, from userid 1000) id 9A8D3B1A32; Mon, 14 Jun 2010 09:43:09 +0200 (CEST) Date: Mon, 14 Jun 2010 09:43:09 +0200 From: Andi Kleen To: Dave Chinner Cc: Andi Kleen , xfs@oss.sgi.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org X-ASG-Orig-Subj: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Subject: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Message-ID: <20100614074309.GA17092@basil.fritz.box> References: <20100610110.764742110@firstfloor.org> <20100610111052.3DDC5B1A2B@basil.firstfloor.org> <20100614042700.GC6590@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100614042700.GC6590@dastard> User-Agent: Mutt/1.5.17 (2007-11-01) X-Barracuda-Connect: one.firstfloor.org[213.235.205.2] X-Barracuda-Start-Time: 1276501393 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32495 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, Jun 14, 2010 at 02:27:00PM +1000, Dave Chinner wrote: > > Unused statements were mostly related to stub macros for disabled > > features like QUOTA or RT ALLOC. I replace those with > > inlines. > > Did you compile with/without XFS_DEBUG (I don't think so)? when No. I merely made my own config work with relatively little warnings. > changing code that affects ASSERT statements, CONFIG_XFS_DEBUG needs to > be selected to test that this code compiles. Most XFs developers > build with XFS_CONFIG_DEBUG for everything other than performance > testing, so ensuring this builds is definitely required. ;) Ok fair enough. > > I'd also be interested if any fixes are needed with all options > enabled. Seems silly just to fix a few warnings in just one > particular configuration rather than all of them... There are tons more warnings with allyesconfig I'm sure, not only in xfs. They will need time to work out. This will happen over time as people eventually move to gcc 4.6 (after it's released) Some of the warnings are also related to not enabling everything (e.g. no quota) > > > There were also some problems with variables used in ASSERT() > > I partly moved those into the ASSERT itself and partly > > used a new QASSERT that always evaluates. > > That's a pretty ugly hack for a single occurrence of a warning. > Re-arrnaging the code is a much better idea than introducing a new > ASSERT type. e.g: I originally planned to use it for more, but then ended up changing other code in other ways. I still don't think it's a ugly hack, it's a relatively simple way to handle this. But I can change this single occurrence. > FWIW, we've now got a situation where external static code checkers > will tell us that we are not handling an error case (which is where > this code and comment came from), and now the compiler will warn us > we are assigning but not using the return value. It's a bit of a > Catch-22 situation. Hence my question is this - how are we supposed > to "safely" ignore a return value seeing as the compiler is now > making the current method rather noisy? Fix the problem? Otherwise you can use a (void) cast, but that's a bad way if there's a real problem. > > dp->i_d.di_size = 0; > > xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE); > > /* > > Just remove the buf_len variable in this case. I think the code looks cleaner when using buf_len > These are all "unused" because they are used in debug code only. i.e. > in XFS_FILESTREAMS_TRACE configs. This is manual debug code that > needs to be converted to the trace infrastructure - the compiler may I have no plans to do that. > say it is unused, but it is not dead code, so shoul dnot be removed. I did not remove anything. > > (uint)(msbp - msb), rsvd); > > ASSERT(error == 0); > > + /* FIXME: need real error handling here, error can be ENOSPC */ > > That comment is wrong and hence is not needed. By design, we should > never, ever get an error here because we've already reserved all the > space we need and this is just an accounting call. That's what the > ASSERT(error == 0) is documenting. It's ben placed there to catch Ok. But I must say ASSERT() is not really a good way to document things like that. Whoever wrote this gets what he deserves now ... > function head comment during development. Anyway, if we do get an > error here, we cannot handle it anyway - it's too late to do > anything short of a complete shutdown as we've already written the > transaction to the log. Well I guess it should be unconditional BUG_ON then. -Andi -- ak@linux.intel.com -- Speaking for myself only. From andi@firstfloor.org Mon Jun 14 03:11:27 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,J_CHICKENPOX_25, J_CHICKENPOX_62,J_CHICKENPOX_63,J_CHICKENPOX_64,J_CHICKENPOX_65, LOCAL_GNU_PATCH autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5E8BRxo032490 for ; Mon, 14 Jun 2010 03:11:27 -0500 X-ASG-Debug-ID: 1276503237-6c4103530000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from one.firstfloor.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 539453C424C for ; Mon, 14 Jun 2010 01:13:58 -0700 (PDT) Received: from one.firstfloor.org (one.firstfloor.org [213.235.205.2]) by cuda.sgi.com with ESMTP id rzYOFrlyCFtl9QKt for ; Mon, 14 Jun 2010 01:13:58 -0700 (PDT) Received: from basil.firstfloor.org (p5B3CB7D3.dip0.t-ipconnect.de [91.60.183.211]) by one.firstfloor.org (Postfix) with ESMTP id 58C1D1A980C3; Mon, 14 Jun 2010 10:13:57 +0200 (CEST) Received: by basil.firstfloor.org (Postfix, from userid 1000) id D9409B1A32; Mon, 14 Jun 2010 10:13:56 +0200 (CEST) Date: Mon, 14 Jun 2010 10:13:56 +0200 From: Andi Kleen To: xfs@oss.sgi.com, ak@linux.intel.com, dgc@fromorbit.com, hch@lst.de X-ASG-Orig-Subj: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 Subject: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 Message-ID: <20100614081356.GA27499@basil.fritz.box> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.17 (2007-11-01) X-Barracuda-Connect: one.firstfloor.org[213.235.205.2] X-Barracuda-Start-Time: 1276503239 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32497 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 Addresses (near) all outstanding comments: v2: QASSERT removed. Dave Chinners comments addressed (well the one I liked). CONFIG_XFS_DEBUG builds again now. I checked RT+QUOTA enabled and there was no new warnings (if someone is interested i put the remaining ones at http://halobates.de/xfs-all-gcc46) -Andi --- For my configuration, that is without quota or RT. Mostly dead code removed I think (but needs additional review) That is there were one or two bad error handling cases, but they were not easily fixable, with comments and I left the warnings in for those for you to remember. e.g. if there is a ENOSPC down in xfs_trans.c while modifying the superblock it would not be handled. Unused statements were mostly related to stub macros for disabled features like QUOTA or RT ALLOC. I replace those with inlines. There were also some problems with variables used in ASSERT() I partly moved those into the ASSERT itself. v2: QASSERT removed. Dave Chinners comments addressed (well the one I liked). CONFIG_XFS_DEBUG builds again now. I checked RT+QUOTA enabled and there was no new warnings (if someone is interested i put the remaining ones at http://halobates.de/xfs-all-gcc46) Cc: xfs@oss.sgi.com Signed-off-by: Andi Kleen --- fs/xfs/linux-2.6/xfs_sync.c | 3 +++ fs/xfs/xfs_alloc.c | 10 +++------- fs/xfs/xfs_da_btree.c | 19 +++++++------------ fs/xfs/xfs_dir2_block.c | 6 +++--- fs/xfs/xfs_filestream.c | 16 +++++----------- fs/xfs/xfs_iget.c | 3 --- fs/xfs/xfs_inode.c | 4 ---- fs/xfs/xfs_inode_item.c | 8 ++------ fs/xfs/xfs_log.c | 2 -- fs/xfs/xfs_quota.h | 14 ++++++++++---- fs/xfs/xfs_trans.c | 6 +++++- 11 files changed, 38 insertions(+), 53 deletions(-) Index: linux-2.6.35-rc3-gcc/fs/xfs/linux-2.6/xfs_sync.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/linux-2.6/xfs_sync.c +++ linux-2.6.35-rc3-gcc/fs/xfs/linux-2.6/xfs_sync.c @@ -554,6 +554,9 @@ xfs_sync_worker( xfs_log_force(mp, 0); xfs_reclaim_inodes(mp, 0); /* dgc: errors ignored here */ + /* ak: yes and you'll get a warning for it now when you + * upgrade compilers. + */ error = xfs_qm_sync(mp, SYNC_TRYLOCK); if (xfs_log_need_covered(mp)) error = xfs_commit_dummy_trans(mp, 0); Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_da_btree.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_da_btree.c +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_da_btree.c @@ -581,16 +581,14 @@ xfs_da_node_add(xfs_da_state_t *state, x xfs_da_intnode_t *node; xfs_da_node_entry_t *btree; int tmp; - xfs_mount_t *mp; node = oldblk->bp->data; - mp = state->mp; ASSERT(be16_to_cpu(node->hdr.info.magic) == XFS_DA_NODE_MAGIC); ASSERT((oldblk->index >= 0) && (oldblk->index <= be16_to_cpu(node->hdr.count))); ASSERT(newblk->blkno != 0); if (state->args->whichfork == XFS_DATA_FORK) - ASSERT(newblk->blkno >= mp->m_dirleafblk && - newblk->blkno < mp->m_dirfreeblk); + ASSERT(newblk->blkno >= state->mp->m_dirleafblk && + newblk->blkno < state->mp->m_dirfreeblk); /* * We may need to make some room before we insert the new node. @@ -710,8 +708,6 @@ STATIC int xfs_da_root_join(xfs_da_state_t *state, xfs_da_state_blk_t *root_blk) { xfs_da_intnode_t *oldroot; - /* REFERENCED */ - xfs_da_blkinfo_t *blkinfo; xfs_da_args_t *args; xfs_dablk_t child; xfs_dabuf_t *bp; @@ -742,15 +738,14 @@ xfs_da_root_join(xfs_da_state_t *state, if (error) return(error); ASSERT(bp != NULL); - blkinfo = bp->data; if (be16_to_cpu(oldroot->hdr.level) == 1) { - ASSERT(be16_to_cpu(blkinfo->magic) == XFS_DIR2_LEAFN_MAGIC || - be16_to_cpu(blkinfo->magic) == XFS_ATTR_LEAF_MAGIC); + ASSERT(be16_to_cpu(bp->data->magic) == XFS_DIR2_LEAFN_MAGIC || + be16_to_cpu(bp->data->magic) == XFS_ATTR_LEAF_MAGIC); } else { - ASSERT(be16_to_cpu(blkinfo->magic) == XFS_DA_NODE_MAGIC); + ASSERT(be16_to_cpu(bp->data->magic) == XFS_DA_NODE_MAGIC); } - ASSERT(!blkinfo->forw); - ASSERT(!blkinfo->back); + ASSERT(!bp->data->forw); + ASSERT(!bp->data->back); memcpy(root_blk->bp->data, bp->data, state->blocksize); xfs_da_log_buf(args->trans, root_blk->bp, 0, state->blocksize - 1); error = xfs_da_shrink_inode(args, child, bp); Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_dir2_block.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_dir2_block.c +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_dir2_block.c @@ -1073,10 +1073,10 @@ xfs_dir2_sf_to_block( */ buf_len = dp->i_df.if_bytes; - buf = kmem_alloc(dp->i_df.if_bytes, KM_SLEEP); + buf = kmem_alloc(buf_len, KM_SLEEP); - memcpy(buf, sfp, dp->i_df.if_bytes); - xfs_idata_realloc(dp, -dp->i_df.if_bytes, XFS_DATA_FORK); + memcpy(buf, sfp, buf_len); + xfs_idata_realloc(dp, -buf_len, XFS_DATA_FORK); dp->i_d.di_size = 0; xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE); /* Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_filestream.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_filestream.c +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_filestream.c @@ -140,9 +140,8 @@ _xfs_filestream_pick_ag( int flags, xfs_extlen_t minlen) { - int streams, max_streams; int err, trylock, nscan; - xfs_extlen_t longest, free, minfree, maxfree = 0; + xfs_extlen_t longest, minfree, maxfree = 0; xfs_agnumber_t ag, max_ag = NULLAGNUMBER; struct xfs_perag *pag; @@ -174,7 +173,6 @@ _xfs_filestream_pick_ag( /* Keep track of the AG with the most free blocks. */ if (pag->pagf_freeblks > maxfree) { maxfree = pag->pagf_freeblks; - max_streams = atomic_read(&pag->pagf_fstrms); max_ag = ag; } @@ -196,8 +194,6 @@ _xfs_filestream_pick_ag( (flags & XFS_PICK_LOWSPACE))) { /* Break out, retaining the reference on the AG. */ - free = pag->pagf_freeblks; - streams = atomic_read(&pag->pagf_fstrms); xfs_perag_put(pag); *agp = ag; break; @@ -234,8 +230,6 @@ next_ag: if (max_ag != NULLAGNUMBER) { xfs_filestream_get_ag(mp, max_ag); TRACE_AG_PICK1(mp, max_ag, maxfree); - streams = max_streams; - free = maxfree; *agp = max_ag; break; } @@ -364,7 +358,8 @@ xfs_fstrm_free_func( /* Drop the reference taken on the AG when the item was added. */ ref = xfs_filestream_put_ag(ip->i_mount, item->ag); - ASSERT(ref >= 0); + if (ref < 0) + ASSERT(0); TRACE_FREE(ip->i_mount, ip, item->pip, item->ag, xfs_filestream_peek_ag(ip->i_mount, item->ag)); @@ -465,7 +460,6 @@ xfs_filestream_lookup_ag( xfs_mru_cache_t *cache; fstrm_item_t *item; xfs_agnumber_t ag; - int ref; if (!(ip->i_d.di_mode & (S_IFREG | S_IFDIR))) { ASSERT(0); @@ -481,10 +475,10 @@ xfs_filestream_lookup_ag( ASSERT(ip == item->ip); ag = item->ag; - ref = xfs_filestream_peek_ag(ip->i_mount, ag); xfs_mru_cache_done(cache); - TRACE_LOOKUP(ip->i_mount, ip, item->pip, ag, ref); + TRACE_LOOKUP(ip->i_mount, ip, item->pip, ag, + xfs_filestream_peek_ag(ip->i_mount, ag)); return ag; } Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_iget.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_iget.c +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_iget.c @@ -265,7 +265,6 @@ xfs_iget_cache_miss( { struct xfs_inode *ip; int error; - unsigned long first_index, mask; xfs_agino_t agino = XFS_INO_TO_AGINO(mp, ino); ip = xfs_inode_alloc(mp, ino); @@ -302,8 +301,6 @@ xfs_iget_cache_miss( BUG(); } - mask = ~(((XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_inodelog)) - 1); - first_index = agino & mask; write_lock(&pag->pag_ici_lock); /* insert the new inode */ Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_inode.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_inode.c +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_inode.c @@ -925,7 +925,6 @@ xfs_iread_extents( int error; xfs_ifork_t *ifp; xfs_extnum_t nextents; - size_t size; if (unlikely(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE)) { XFS_ERROR_REPORT("xfs_iread_extents", XFS_ERRLEVEL_LOW, @@ -933,7 +932,6 @@ xfs_iread_extents( return XFS_ERROR(EFSCORRUPTED); } nextents = XFS_IFORK_NEXTENTS(ip, whichfork); - size = nextents * sizeof(xfs_bmbt_rec_t); ifp = XFS_IFORK_PTR(ip, whichfork); /* @@ -3517,13 +3515,11 @@ xfs_iext_remove_indirect( xfs_extnum_t ext_diff; /* extents to remove in current list */ xfs_extnum_t nex1; /* number of extents before idx */ xfs_extnum_t nex2; /* extents after idx + count */ - int nlists; /* entries in indirection array */ int page_idx = idx; /* index in target extent list */ ASSERT(ifp->if_flags & XFS_IFEXTIREC); erp = xfs_iext_idx_to_irec(ifp, &page_idx, &erp_idx, 0); ASSERT(erp != NULL); - nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ; nex1 = page_idx; ext_cnt = count; while (ext_cnt) { Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_inode_item.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_inode_item.c +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_inode_item.c @@ -220,7 +220,6 @@ xfs_inode_item_format( xfs_inode_t *ip; size_t data_bytes; xfs_bmbt_rec_t *ext_buffer; - int nrecs; xfs_mount_t *mp; ip = iip->ili_inode; @@ -323,9 +322,8 @@ xfs_inode_item_format( ASSERT(ip->i_df.if_u1.if_extents != NULL); ASSERT(ip->i_d.di_nextents > 0); ASSERT(iip->ili_extents_buf == NULL); - nrecs = ip->i_df.if_bytes / - (uint)sizeof(xfs_bmbt_rec_t); - ASSERT(nrecs > 0); + ASSERT((ip->i_df.if_bytes / + (uint)sizeof(xfs_bmbt_rec_t)) > 0); #ifdef XFS_NATIVE_HOST if (nrecs == ip->i_d.di_nextents) { /* @@ -957,10 +955,8 @@ xfs_iflush_abort( xfs_inode_t *ip) { xfs_inode_log_item_t *iip = ip->i_itemp; - xfs_mount_t *mp; iip = ip->i_itemp; - mp = ip->i_mount; if (iip) { struct xfs_ail *ailp = iip->ili_item.li_ailp; if (iip->ili_item.li_flags & XFS_LI_IN_AIL) { Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_log.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_log.c +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_log.c @@ -1047,7 +1047,6 @@ xlog_alloc_log(xfs_mount_t *mp, xlog_in_core_t *iclog, *prev_iclog=NULL; xfs_buf_t *bp; int i; - int iclogsize; int error = ENOMEM; uint log2_size = 0; @@ -1127,7 +1126,6 @@ xlog_alloc_log(xfs_mount_t *mp, * with different amounts of memory. See the definition of * xlog_in_core_t in xfs_log_priv.h for details. */ - iclogsize = log->l_iclog_size; ASSERT(log->l_iclog_size >= 4096); for (i=0; i < log->l_iclog_bufs; i++) { *iclogp = kmem_zalloc(sizeof(xlog_in_core_t), KM_MAYFAIL); Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_quota.h =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_quota.h +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_quota.h @@ -346,7 +346,13 @@ xfs_qm_vop_dqalloc(struct xfs_inode *ip, #define xfs_trans_mod_dquot_byino(tp, ip, fields, delta) #define xfs_trans_apply_dquot_deltas(tp) #define xfs_trans_unreserve_and_mod_dquots(tp) -#define xfs_trans_reserve_quota_nblks(tp, ip, nblks, ninos, flags) (0) + +static inline int xfs_trans_reserve_quota_nblks(struct xfs_trans *t, + struct xfs_inode *i, long a, long b, uint c) +{ + return 0; +} + #define xfs_trans_reserve_quota_bydquots(tp, mp, u, g, nb, ni, fl) (0) #define xfs_qm_vop_create_dqattach(tp, ip, u, g) #define xfs_qm_vop_rename_dqattach(it) (0) @@ -355,13 +361,13 @@ xfs_qm_vop_dqalloc(struct xfs_inode *ip, #define xfs_qm_dqattach(ip, fl) (0) #define xfs_qm_dqattach_locked(ip, fl) (0) #define xfs_qm_dqdetach(ip) -#define xfs_qm_dqrele(d) +static inline void xfs_qm_dqrele(struct xfs_dquot *d) {} #define xfs_qm_statvfs(ip, s) -#define xfs_qm_sync(mp, fl) (0) +static inline int xfs_qm_sync(struct xfs_mount *m, int i) { return 0; } #define xfs_qm_newmount(mp, a, b) (0) #define xfs_qm_mount_quotas(mp) #define xfs_qm_unmount(mp) -#define xfs_qm_unmount_quotas(mp) (0) +static inline void xfs_qm_unmount_quotas(struct xfs_mount *m) {} #endif /* CONFIG_XFS_QUOTA */ #define xfs_trans_unreserve_quota_nblks(tp, ip, nblks, ninos, flags) \ Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_trans.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_trans.c +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_trans.c @@ -1119,7 +1119,11 @@ xfs_trans_unreserve_and_mod_sb( if (msbp > msb) { error = xfs_mod_incore_sb_batch(tp->t_mountp, msb, (uint)(msbp - msb), rsvd); - ASSERT(error == 0); + /* + * When an error happens here it's a race that's supposed + * to be fixed. Check for this unconditionally. + */ + BUG_ON(error != 0); } } Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_alloc.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_alloc.c +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_alloc.c @@ -688,8 +688,6 @@ xfs_alloc_ag_vextent_near( xfs_agblock_t ltbno; /* start bno of left side entry */ xfs_agblock_t ltbnoa; /* aligned ... */ xfs_extlen_t ltdiff; /* difference to left side entry */ - /*REFERENCED*/ - xfs_agblock_t ltend; /* end bno of left side entry */ xfs_extlen_t ltlen; /* length of left side entry */ xfs_extlen_t ltlena; /* aligned ... */ xfs_agblock_t ltnew; /* useful start bno of left side */ @@ -814,8 +812,7 @@ xfs_alloc_ag_vextent_near( if ((error = xfs_alloc_get_rec(cnt_cur, <bno, <len, &i))) goto error0; XFS_WANT_CORRUPTED_GOTO(i == 1, error0); - ltend = ltbno + ltlen; - ASSERT(ltend <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length)); + ASSERT(ltbno + ltlen <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length)); args->len = blen; if (!xfs_alloc_fix_minleft(args)) { xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR); @@ -828,7 +825,7 @@ xfs_alloc_ag_vextent_near( */ args->agbno = bnew; ASSERT(bnew >= ltbno); - ASSERT(bnew + blen <= ltend); + ASSERT(bnew + blen <= ltbno + ltlen); /* * Set up a cursor for the by-bno tree. */ @@ -1157,7 +1154,6 @@ xfs_alloc_ag_vextent_near( /* * Fix up the length and compute the useful address. */ - ltend = ltbno + ltlen; args->len = XFS_EXTLEN_MIN(ltlena, args->maxlen); xfs_alloc_fix_len(args); if (!xfs_alloc_fix_minleft(args)) { @@ -1170,7 +1166,7 @@ xfs_alloc_ag_vextent_near( (void)xfs_alloc_compute_diff(args->agbno, rlen, args->alignment, ltbno, ltlen, <new); ASSERT(ltnew >= ltbno); - ASSERT(ltnew + rlen <= ltend); + ASSERT(ltnew + rlen <= ltbno + ltlen); ASSERT(ltnew + rlen <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length)); args->agbno = ltnew; if ((error = xfs_alloc_fixup_trees(cnt_cur, bno_cur_lt, ltbno, ltlen, From hch@lst.de Mon Jun 14 03:28:16 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,J_CHICKENPOX_62, J_CHICKENPOX_63 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5E8SGPS033059 for ; Mon, 14 Jun 2010 03:28:16 -0500 X-ASG-Debug-ID: 1276504457-5bed02510000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from verein.lst.de (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 3315812ACB43 for ; Mon, 14 Jun 2010 01:34:17 -0700 (PDT) Received: from verein.lst.de (verein.lst.de [213.95.11.210]) by cuda.sgi.com with ESMTP id Et8tRsYDRzhVxNgt for ; Mon, 14 Jun 2010 01:34:17 -0700 (PDT) X-ASG-Whitelist: Client Received: from verein.lst.de (localhost [127.0.0.1]) by verein.lst.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id o5E8UMXt029879 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=NO); Mon, 14 Jun 2010 10:30:22 +0200 Received: (from hch@localhost) by verein.lst.de (8.12.3/8.12.3/Debian-7.2) id o5E8ULcP029876; Mon, 14 Jun 2010 10:30:21 +0200 Date: Mon, 14 Jun 2010 10:30:21 +0200 From: Christoph Hellwig To: Andi Kleen Cc: xfs@oss.sgi.com, ak@linux.intel.com, dgc@fromorbit.com, hch@lst.de X-ASG-Orig-Subj: Re: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 Subject: Re: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 Message-ID: <20100614083021.GA29354@lst.de> References: <20100614081356.GA27499@basil.fritz.box> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100614081356.GA27499@basil.fritz.box> User-Agent: Mutt/1.3.28i X-Scanned-By: MIMEDefang 2.39 X-Barracuda-Connect: verein.lst.de[213.95.11.210] X-Barracuda-Start-Time: 1276504458 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, Jun 14, 2010 at 10:13:56AM +0200, Andi Kleen wrote: > - /* REFERENCED */ > - xfs_da_blkinfo_t *blkinfo; > xfs_da_args_t *args; > xfs_dablk_t child; > xfs_dabuf_t *bp; > @@ -742,15 +738,14 @@ xfs_da_root_join(xfs_da_state_t *state, > if (error) > return(error); > ASSERT(bp != NULL); > - blkinfo = bp->data; > if (be16_to_cpu(oldroot->hdr.level) == 1) { > - ASSERT(be16_to_cpu(blkinfo->magic) == XFS_DIR2_LEAFN_MAGIC || > - be16_to_cpu(blkinfo->magic) == XFS_ATTR_LEAF_MAGIC); > + ASSERT(be16_to_cpu(bp->data->magic) == XFS_DIR2_LEAFN_MAGIC || > + be16_to_cpu(bp->data->magic) == XFS_ATTR_LEAF_MAGIC); > } else { > - ASSERT(be16_to_cpu(blkinfo->magic) == XFS_DA_NODE_MAGIC); > + ASSERT(be16_to_cpu(bp->data->magic) == XFS_DA_NODE_MAGIC); How can this work? bp->data is a void pointer. > @@ -174,7 +173,6 @@ _xfs_filestream_pick_ag( > /* Keep track of the AG with the most free blocks. */ > if (pag->pagf_freeblks > maxfree) { > maxfree = pag->pagf_freeblks; > - max_streams = atomic_read(&pag->pagf_fstrms); > max_ag = ag; > } > > @@ -196,8 +194,6 @@ _xfs_filestream_pick_ag( > (flags & XFS_PICK_LOWSPACE))) { > > /* Break out, retaining the reference on the AG. */ > - free = pag->pagf_freeblks; > - streams = atomic_read(&pag->pagf_fstrms); These are used by the tracing code not yet converted to the new tracing infrastructure. I think I'll prefer to just add the new tracing code ASAP to make the warnings go away. > break; > } > @@ -364,7 +358,8 @@ xfs_fstrm_free_func( > /* Drop the reference taken on the AG when the item was added. */ > ref = xfs_filestream_put_ag(ip->i_mount, item->ag); > > - ASSERT(ref >= 0); > + if (ref < 0) > + ASSERT(0); We never use the return value of xfs_filestream_put_ag, so we an just make it return void (and move it to xfs_filestreams.c while at it). From ak@linux.intel.com Mon Jun 14 03:57:14 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_62 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5E8vEBE033923 for ; Mon, 14 Jun 2010 03:57:14 -0500 X-ASG-Debug-ID: 1276506196-5bac03320000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mga14.intel.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 2979712ACC45 for ; Mon, 14 Jun 2010 02:03:16 -0700 (PDT) Received: from mga14.intel.com (mga14.intel.com [143.182.124.37]) by cuda.sgi.com with ESMTP id 0zJLO5PRmX5ncWVH for ; Mon, 14 Jun 2010 02:03:16 -0700 (PDT) Received: from azsmga001.ch.intel.com ([10.2.17.19]) by azsmga102.ch.intel.com with ESMTP; 14 Jun 2010 01:59:43 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.53,413,1272870000"; d="scan'208";a="288531126" Received: from unknown (HELO [10.254.189.14]) ([10.254.189.14]) by azsmga001.ch.intel.com with ESMTP; 14 Jun 2010 01:59:41 -0700 Message-ID: <4C15EF75.5080909@linux.intel.com> Date: Mon, 14 Jun 2010 10:59:33 +0200 From: Andi Kleen User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.1.9) Gecko/20100317 Thunderbird/3.0.4 MIME-Version: 1.0 To: Christoph Hellwig CC: Andi Kleen , xfs@oss.sgi.com, dgc@fromorbit.com X-ASG-Orig-Subj: Re: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 Subject: Re: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 References: <20100614081356.GA27499@basil.fritz.box> <20100614083021.GA29354@lst.de> In-Reply-To: <20100614083021.GA29354@lst.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mga14.intel.com[143.182.124.37] X-Barracuda-Start-Time: 1276506197 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32500 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean , Christoph Hellwig wrote: > On Mon, Jun 14, 2010 at 10:13:56AM +0200, Andi Kleen wrote: >> - /* REFERENCED */ >> - xfs_da_blkinfo_t *blkinfo; >> xfs_da_args_t *args; >> xfs_dablk_t child; >> xfs_dabuf_t *bp; >> @@ -742,15 +738,14 @@ xfs_da_root_join(xfs_da_state_t *state, >> if (error) >> return(error); >> ASSERT(bp != NULL); >> - blkinfo = bp->data; >> if (be16_to_cpu(oldroot->hdr.level) == 1) { >> - ASSERT(be16_to_cpu(blkinfo->magic) == XFS_DIR2_LEAFN_MAGIC || >> - be16_to_cpu(blkinfo->magic) == XFS_ATTR_LEAF_MAGIC); >> + ASSERT(be16_to_cpu(bp->data->magic) == XFS_DIR2_LEAFN_MAGIC || >> + be16_to_cpu(bp->data->magic) == XFS_ATTR_LEAF_MAGIC); >> } else { >> - ASSERT(be16_to_cpu(blkinfo->magic) == XFS_DA_NODE_MAGIC); >> + ASSERT(be16_to_cpu(bp->data->magic) == XFS_DA_NODE_MAGIC); > > How can this work? bp->data is a void pointer. It compiled with CONFIG_XFS_DEBUG enabled. Do I need to set some other option to test this? Anyways I don't plan to do any more heavy lifting on this patch, so if you need any other complicated changes someone else will have to do it. -Andi From BATV+91b7c6bff8418a4eb2d7+2486+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 14 04:14:58 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,J_CHICKENPOX_33, J_CHICKENPOX_41,J_CHICKENPOX_62 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5E9EvvN034556 for ; Mon, 14 Jun 2010 04:14:58 -0500 X-ASG-Debug-ID: 1276507052-0be6020f0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 301741BDA9A7 for ; Mon, 14 Jun 2010 02:17:33 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id oB8Gm2SMwsxkzxyL for ; Mon, 14 Jun 2010 02:17:33 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OO5nP-0005op-89; Mon, 14 Jun 2010 09:17:31 +0000 Date: Mon, 14 Jun 2010 05:17:31 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com Cc: npiggin@suse.de, viro@zeniv.linux.org.uk X-ASG-Orig-Subj: [PATCH] xfs: new truncate sequence Subject: [PATCH] xfs: new truncate sequence Message-ID: <20100614091731.GA22088@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1276507053 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Convert XFS to the new truncate sequence. We still can have errors after updating the file size in xfs_setattr, but these are real I/O errors and lead to a transaction abort and filesystem shutdown, so they are not an issue. Errors from ->write_begin and write_end can now be handled correctly because we can actually get rid of the delalloc extents while previous the buffer state was stipped in block_invalidatepage. There is still no error handling for ->direct_IO, because doing so will need some major restructuring given that we only have the iolock shared and do not hold i_mutex at all. Fortunately leaving the normally allocated blocks behind there is not a major issue and this will get cleaned up by xfs_free_eofblock later. Note: the patch is against Al's vfs.git tree as that contains the nessecary preparations. I'd prefer to get it applied there so that we can get some testing in linux-next. Signed-off-by: Christoph Hellwig Index: linux-2.6/fs/xfs/linux-2.6/xfs_aops.c =================================================================== --- linux-2.6.orig/fs/xfs/linux-2.6/xfs_aops.c 2010-06-11 18:20:44.758254642 +0200 +++ linux-2.6/fs/xfs/linux-2.6/xfs_aops.c 2010-06-11 19:33:40.285005724 +0200 @@ -1674,6 +1674,22 @@ xfs_vm_direct_IO( return ret; } +STATIC void +xfs_vm_write_failed( + struct address_space *mapping, + loff_t to) +{ + struct inode *inode = mapping->host; + + if (to > inode->i_size) { + struct iattr ia = { + .ia_valid = ATTR_SIZE | ATTR_FORCE, + .ia_size = inode->i_size, + }; + xfs_setattr(XFS_I(inode), &ia, XFS_ATTR_NOLOCK); + } +} + STATIC int xfs_vm_write_begin( struct file *file, @@ -1688,12 +1704,26 @@ xfs_vm_write_begin( ret = block_write_begin(mapping, pos, len, flags, pagep, xfs_get_blocks); - if (unlikely(ret)) { - loff_t isize = mapping->host->i_size; - if (pos + len > isize) - vmtruncate(mapping->host, isize); - } + if (unlikely(ret)) + xfs_vm_write_failed(mapping, pos + len); + return ret; +} + +STATIC int +xfs_vm_write_end( + struct file *file, + struct address_space *mapping, + loff_t pos, + unsigned len, + unsigned copied, + struct page *page, + void *fsdata) +{ + int ret; + ret = generic_write_end(file, mapping, pos, len, copied, page, fsdata); + if (unlikely(ret < len)) + xfs_vm_write_failed(mapping, pos + len); return ret; } @@ -1739,7 +1769,7 @@ const struct address_space_operations xf .releasepage = xfs_vm_releasepage, .invalidatepage = xfs_vm_invalidatepage, .write_begin = xfs_vm_write_begin, - .write_end = generic_write_end, + .write_end = xfs_vm_write_end, .bmap = xfs_vm_bmap, .direct_IO = xfs_vm_direct_IO, .migratepage = buffer_migrate_page, Index: linux-2.6/fs/xfs/linux-2.6/xfs_iops.c =================================================================== --- linux-2.6.orig/fs/xfs/linux-2.6/xfs_iops.c 2010-06-10 19:52:20.400004327 +0200 +++ linux-2.6/fs/xfs/linux-2.6/xfs_iops.c 2010-06-11 18:20:50.554011870 +0200 @@ -548,21 +548,6 @@ xfs_vn_setattr( return -xfs_setattr(XFS_I(dentry->d_inode), iattr, 0); } -/* - * block_truncate_page can return an error, but we can't propagate it - * at all here. Leave a complaint + stack trace in the syslog because - * this could be bad. If it is bad, we need to propagate the error further. - */ -STATIC void -xfs_vn_truncate( - struct inode *inode) -{ - int error; - error = block_truncate_page(inode->i_mapping, inode->i_size, - xfs_get_blocks); - WARN_ON(error); -} - STATIC long xfs_vn_fallocate( struct inode *inode, @@ -702,7 +687,6 @@ xfs_vn_fiemap( static const struct inode_operations xfs_inode_operations = { .check_acl = xfs_check_acl, - .truncate = xfs_vn_truncate, .getattr = xfs_vn_getattr, .setattr = xfs_vn_setattr, .setxattr = generic_setxattr, Index: linux-2.6/fs/xfs/linux-2.6/xfs_linux.h =================================================================== --- linux-2.6.orig/fs/xfs/linux-2.6/xfs_linux.h 2010-06-10 19:52:20.484003629 +0200 +++ linux-2.6/fs/xfs/linux-2.6/xfs_linux.h 2010-06-11 18:20:50.559254502 +0200 @@ -157,8 +157,6 @@ */ #define xfs_sort(a,n,s,fn) sort(a,n,s,fn,NULL) #define xfs_stack_trace() dump_stack() -#define xfs_itruncate_data(ip, off) \ - (-vmtruncate(VFS_I(ip), (off))) /* Move the kernel do_div definition off to one side */ Index: linux-2.6/fs/xfs/xfs_vnodeops.c =================================================================== --- linux-2.6.orig/fs/xfs/xfs_vnodeops.c 2010-06-10 19:52:20.578004327 +0200 +++ linux-2.6/fs/xfs/xfs_vnodeops.c 2010-06-11 18:20:50.564254781 +0200 @@ -236,8 +236,11 @@ xfs_setattr( * transaction to modify the i_size. */ code = xfs_zero_eof(ip, iattr->ia_size, ip->i_size); + if (code) + goto error_return; } xfs_iunlock(ip, XFS_ILOCK_EXCL); + lock_flags &= ~XFS_ILOCK_EXCL; /* * We are going to log the inode size change in this @@ -251,36 +254,35 @@ xfs_setattr( * really care about here and prevents waiting for other data * not within the range we care about here. */ - if (!code && - ip->i_size != ip->i_d.di_size && + if (ip->i_size != ip->i_d.di_size && iattr->ia_size > ip->i_d.di_size) { code = xfs_flush_pages(ip, ip->i_d.di_size, iattr->ia_size, XBF_ASYNC, FI_NONE); + if (code) + goto error_return; } /* wait for all I/O to complete */ xfs_ioend_wait(ip); - if (!code) - code = xfs_itruncate_data(ip, iattr->ia_size); - if (code) { - ASSERT(tp == NULL); - lock_flags &= ~XFS_ILOCK_EXCL; - ASSERT(lock_flags == XFS_IOLOCK_EXCL || !need_iolock); + code = -block_truncate_page(inode->i_mapping, iattr->ia_size, + xfs_get_blocks); + if (code) goto error_return; - } + tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_SIZE); - if ((code = xfs_trans_reserve(tp, 0, - XFS_ITRUNCATE_LOG_RES(mp), 0, - XFS_TRANS_PERM_LOG_RES, - XFS_ITRUNCATE_LOG_COUNT))) { - xfs_trans_cancel(tp, 0); - if (need_iolock) - xfs_iunlock(ip, XFS_IOLOCK_EXCL); - return code; - } + code = xfs_trans_reserve(tp, 0, XFS_ITRUNCATE_LOG_RES(mp), 0, + XFS_TRANS_PERM_LOG_RES, + XFS_ITRUNCATE_LOG_COUNT); + if (code) + goto error_return; + + truncate_setsize(inode, iattr->ia_size); + commit_flags = XFS_TRANS_RELEASE_LOG_RES; + lock_flags |= XFS_ILOCK_EXCL; + xfs_ilock(ip, XFS_ILOCK_EXCL); xfs_trans_ijoin(tp, ip, lock_flags); From jack@suse.cz Mon Jun 14 05:08:21 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5EA8LAB036220 for ; Mon, 14 Jun 2010 05:08:21 -0500 X-ASG-Debug-ID: 1276510463-613502590000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mx1.suse.de (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 8BBAF12AD31A for ; Mon, 14 Jun 2010 03:14:23 -0700 (PDT) Received: from mx1.suse.de (cantor.suse.de [195.135.220.2]) by cuda.sgi.com with ESMTP id BqOLHgkGuZIkIRZ1 for ; Mon, 14 Jun 2010 03:14:23 -0700 (PDT) X-ASG-Whitelist: Barracuda Reputation Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.221.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.suse.de (Postfix) with ESMTP id F173F8D893; Mon, 14 Jun 2010 12:10:54 +0200 (CEST) Received: by quack.suse.cz (Postfix, from userid 10005) id 6CA6E2B1BC7; Mon, 14 Jun 2010 12:10:36 +0200 (CEST) Date: Mon, 14 Jun 2010 12:10:36 +0200 From: Jan Kara To: Eric Sandeen Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] quota: don't disable accounting with quotaoff Subject: Re: [PATCH] quota: don't disable accounting with quotaoff Message-ID: <20100614101035.GD3903@quack.suse.cz> References: <4C12B40A.2070405@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C12B40A.2070405@redhat.com> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: cantor.suse.de[195.135.220.2] X-Barracuda-Start-Time: 1276510464 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hi, On Fri 11-06-10 17:09:14, Eric Sandeen wrote: > The quotaon(8) man page says: > > NOTES ON XFS FILESYSTEMS > ... > To turn off quota limit enforcement on any XFS filesys- > tem, first make sure that quota accounting and enforce- > ment are both turned on using repquota -v filesystem. > Then, use quotaoff -v filesystem to disable limit > enforcement. This may be done while the filesystem is > mounted. > > Turning on quota limit enforcement on an XFS filesystem > is achieved using quotaon -v filesystem. This may be > done while the filesystem is mounted > > however, quotaoff turns off both enforcement -and- accounting, > and then quotaon fails. > > If the manpage describes the intended behavior, then I think the > following patch is needed. Yes, I think this behavior makes more sence. Applied. Honza > > Signed-off-by: Eric Sandeen > --- > > --- quota-tools/quotaon_xfs.c 2010-01-05 10:39:54.000000000 -0500 > +++ quota-tools-mine/quotaon_xfs.c 2010-06-11 17:45:12.000000000 -0400 > @@ -208,10 +208,9 @@ > } > #endif /* XFS_ROOTHACK */ > > - if (xarg == NULL) { /* both acct & enfd on/off */ > - xopts |= (type == USRQUOTA) ? > - (XFS_QUOTA_UDQ_ACCT | XFS_QUOTA_UDQ_ENFD) : > - (XFS_QUOTA_GDQ_ACCT | XFS_QUOTA_GDQ_ENFD); > + if (xarg == NULL) { /* only enfd on/off */ > + xopts |= (type == USRQUOTA) ? XFS_QUOTA_UDQ_ENFD : > + XFS_QUOTA_GDQ_ENFD; > err = xfs_onoff((char *)dev, type, flags, roothack, xopts); > } > else if (strcmp(xarg, "account") == 0) { > -- Jan Kara SUSE Labs, CR From jack@suse.cz Mon Jun 14 05:46:02 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5EAk22o037435 for ; Mon, 14 Jun 2010 05:46:02 -0500 X-ASG-Debug-ID: 1276512517-05a101a80000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mx1.suse.de (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 79B6F3C4700 for ; Mon, 14 Jun 2010 03:48:37 -0700 (PDT) Received: from mx1.suse.de (cantor.suse.de [195.135.220.2]) by cuda.sgi.com with ESMTP id yCvI3KdZ8R41YWvD for ; Mon, 14 Jun 2010 03:48:37 -0700 (PDT) X-ASG-Whitelist: Barracuda Reputation Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.221.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.suse.de (Postfix) with ESMTP id C791A5362F; Mon, 14 Jun 2010 12:48:36 +0200 (CEST) Received: by quack.suse.cz (Postfix, from userid 10005) id EA0B72B1BC7; Mon, 14 Jun 2010 12:48:17 +0200 (CEST) Date: Mon, 14 Jun 2010 12:48:17 +0200 From: Jan Kara To: Eric Sandeen Cc: Jan Kara , hch@infradead.org, xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 4/8] Add test of quota accounting using fsx Subject: Re: [PATCH 4/8] Add test of quota accounting using fsx Message-ID: <20100614104817.GE3903@quack.suse.cz> References: <1274710459-11446-1-git-send-email-jack@suse.cz> <1274710459-11446-5-git-send-email-jack@suse.cz> <4C0FD43D.3040803@sandeen.net> <20100610105813.GB10827@quack.suse.cz> <4C1117F3.2010008@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C1117F3.2010008@sandeen.net> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: cantor.suse.de[195.135.220.2] X-Barracuda-Start-Time: 1276512518 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu 10-06-10 11:50:59, Eric Sandeen wrote: > Jan Kara wrote: > > On Wed 09-06-10 12:49:49, Eric Sandeen wrote: > >> Jan Kara wrote: > >>> Run fsx (and also several fsx threads in parallel) and verify that > >>> quota accounting is correct after they finish. > >> Jan, I'm having trouble with this one on XFS for some reason, with our > >> RHEL6 kernel and quota-3.17... > >> > >> +Disabling group quota enforcement and accounting on /dev/mapper/VolGroup00-testvol2 > >> +Disabling user quota enforcement and accounting on /dev/mapper/VolGroup00-testvol2 > >> +repquota: Mountpoint (or device) /mnt/testarea/scratch not found or has no quota enabled. > >> +repquota: Not all specified mountpoints are using quota. > >> +repquota: Mountpoint (or device) /mnt/testarea/scratch not found or has no quota enabled. > >> +repquota: Not all specified mountpoints are using quota. > >> > >> ... > >> > >> however if I remove the quotaon calls (off / on settings) in check_usage() > >> then it works: > >> > >> check_usage() > >> { > >> # quotaon -f -u -g $SCRATCH_MNT 2>/dev/null > >> repquota -u -g $SCRATCH_MNT | grep -v "^root" | filter_scratch \ > >> >$tmp.orig > >> quotacheck -u -g $SCRATCH_MNT 2>/dev/null > >> repquota -u -g $SCRATCH_MNT | grep -v "^root" | filter_scratch \ > >> >$tmp.checked > >> # quotaon -u -g $SCRATCH_MNT 2>/dev/null > >> diff $tmp.orig $tmp.checked > >> } > >> > >> > >> Seems like 2 issues: noisy disable messages, and repquota failing when disabled. > > I've fixed noisy disable messages in quotaon (without -v flag only errors > > should be printed) in CVS. > > Ok, we should probably just add a filter for these so that it'll work > on older versions. OK, will add that. > > With repquota & disabled quotas it's a bit more > > complicated. > > Hm I'm still woefully unfamiliar with quota intricacies. > > It seems that after quotaon -f, repquota fails on xfs but works for ext*? Yes, because we disabled also accounting. But with your change to quota tools it shouldn't be a problem anymore. Still I've added a test so that we turn quotas off only for ext? and reiserfs so that the tests work with older quota tools as well. > Not sure if that's intended... > > Also is there a reason to disable quota before repquota? Is disable/enable > around quotacheck enough? Yes, that would be enough. > Hm on ext* I'm also getting differences from the expected output; I suspect > due to selinux xattrs. I'll try to get that fixed up. I'm seeing some quota miscomputations for ext4, but ext2 and ext3 work fine for me. I didn't have time to look into why ext4 after quotacheck reports different number of blocks. Maybe it's just delayed allocation, maybe it's a real bug. > > The problem is that for ext?, reiserfs,... you have to disable > > quotas before running quotacheck. Also quotacheck is NOP for XFS - we'd > > rather need to call something to really recompute quota usage for XFS. How > > that can be done? > > It's regenerated at mount time if needed. I don't know that we have a > method to force this recalculation... I guess mounting with quotas disabled, > unmounting, then mounting again w/ quotas on will do it. OK, I'll add this to the test. Honza -- Jan Kara SUSE Labs, CR From SRS0+Vc/5+14+fromorbit.com=david@internode.on.net Mon Jun 14 07:27:05 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5ECR5Mh040433 for ; Mon, 14 Jun 2010 07:27:05 -0500 X-ASG-Debug-ID: 1276518579-336e02350000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id D01161D5A34E for ; Mon, 14 Jun 2010 05:29:39 -0700 (PDT) Received: from mail.internode.on.net (bld-mail18.adl2.internode.on.net [150.101.137.103]) by cuda.sgi.com with ESMTP id JQvCH3QY9yOwW0mo for ; Mon, 14 Jun 2010 05:29:39 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27715521-1927428 for multiple; Mon, 14 Jun 2010 21:59:14 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OO8mu-0002Mx-QZ; Mon, 14 Jun 2010 22:29:12 +1000 Date: Mon, 14 Jun 2010 22:29:12 +1000 From: Dave Chinner To: Tao Ma Cc: xfs@oss.sgi.com, linux-kernel@vger.kernel.org, sandeen@sandeen.net, Alex Elder , Christoph Hellwig X-ASG-Orig-Subj: Re: [PATCH v2] xfs: Make fiemap works with sparse file. Subject: Re: [PATCH v2] xfs: Make fiemap works with sparse file. Message-ID: <20100614122912.GD6590@dastard> References: <1276308495-14267-1-git-send-email-tao.ma@oracle.com> <20100614002705.GA6590@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100614002705.GA6590@dastard> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail18.adl2.internode.on.net[150.101.137.103] X-Barracuda-Start-Time: 1276518580 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32506 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, Jun 14, 2010 at 10:27:06AM +1000, Dave Chinner wrote: > On Sat, Jun 12, 2010 at 10:08:15AM +0800, Tao Ma wrote: > > The reason is that in xfs_getbmap we will > > calculate holes and set it in 'out', while out is malloced by > > bmv_count(fi_extent_max+1) which didn't consider holes. So in the > > worst case, if 'out' vector looks like > > [hole, extent, hole, extent, hole, ... hole, extent, hole], > > we will only return half of fi_extent_max extents. > > Right, it's not broken, we simply return less than fi_extent_mex > extents when there are holes. I don't see that as a problem as > applications have to handle that case anyway, and.... > > > So in xfs_vn_fiemap, we should consider this worst case. If the > > user wants fi_extent_max extents, we need a 'out' with size of > > 2 *fi_extent_max + 2(one more the header). > > That's rather dangerous, I think. It relies on other code to catch > the buffer overrun that this sets up for fragmented, non-sparse > files. Personally I'd much prefer to return fewer extents for sparse > files than to add a landmine like this into the kernel code.... I just had a thought - if you want to avoid holes being reported to fiemap, then add a BMV_IF_NO_HOLES flag to xfs_getbmap() and skip holes in the mappin gloop when this flag is set. That will make fiemap fill in the full number of extents without hacking the extent count... Cheers, Dave. -- Dave Chinner david@fromorbit.com From jack@suse.cz Mon Jun 14 07:44:34 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5ECiYEv041033 for ; Mon, 14 Jun 2010 07:44:34 -0500 X-ASG-Debug-ID: 1276519629-29ed03dd0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mx1.suse.de (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 4D0163C508B for ; Mon, 14 Jun 2010 05:47:09 -0700 (PDT) Received: from mx1.suse.de (cantor.suse.de [195.135.220.2]) by cuda.sgi.com with ESMTP id XaOo1R6hExkVbrzT for ; Mon, 14 Jun 2010 05:47:09 -0700 (PDT) X-ASG-Whitelist: Barracuda Reputation Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.221.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.suse.de (Postfix) with ESMTP id A2E275362F; Mon, 14 Jun 2010 14:47:08 +0200 (CEST) Received: by quack.suse.cz (Postfix, from userid 10005) id C1CCC2B1BC7; Mon, 14 Jun 2010 14:46:49 +0200 (CEST) Date: Mon, 14 Jun 2010 14:46:49 +0200 From: Jan Kara To: Eric Sandeen Cc: Jan Kara , hch@infradead.org, xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 4/8] Add test of quota accounting using fsx Subject: Re: [PATCH 4/8] Add test of quota accounting using fsx Message-ID: <20100614124649.GF3903@quack.suse.cz> References: <1274710459-11446-1-git-send-email-jack@suse.cz> <1274710459-11446-5-git-send-email-jack@suse.cz> <4C0FD43D.3040803@sandeen.net> <20100610105813.GB10827@quack.suse.cz> <4C1117F3.2010008@sandeen.net> <4C114E80.4050803@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C114E80.4050803@sandeen.net> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: cantor.suse.de[195.135.220.2] X-Barracuda-Start-Time: 1276519630 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu 10-06-10 15:43:44, Eric Sandeen wrote: > Eric Sandeen wrote: > > Jan Kara wrote: > >> On Wed 09-06-10 12:49:49, Eric Sandeen wrote: > >>> Jan Kara wrote: > >>>> Run fsx (and also several fsx threads in parallel) and verify that > >>>> quota accounting is correct after they finish. > >>> Jan, I'm having trouble with this one on XFS for some reason, with our > >>> RHEL6 kernel and quota-3.17... > > These don't seem to be working properly at all with xfs. > > In quota-3.17, quotaoff seems to turn off both accounting and enforcement, > despite what the man page says - > > To turn off quota limit enforcement on any XFS filesystem, first make sure > that quota accounting and enforcement are both turned on using repquota -v > filesystem. Then, use quotaoff -v filesystem to disable limit enforce- > ment. This may be done while the filesystem is mounted. > > And once accounting is turned off, it can't be re-enabled without a remount. > > With quota-4.0.0-preX, it seems to turn off -neither- accounting nor enforcement, > based on hch's test: > > [14:59] qemu1:~/xfstests-dev# mount -o quota /dev/vdb5 /mnt/test > [14:59] qemu1:~/xfstests-dev# quotaon -f /dev/vdb5 > [15:00] qemu1:~/xfstests-dev# quotaon /dev/vdb5 > [15:00] quotaon: Enable XFS group quota accounting during mount > [15:00] quotaon: Enforcing user quota already on /dev/vdb5 > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > > Argh ;) Ah, not many people seem to use quotaon(8) with XFS :). The fact that we turned off both enforcement and accounting was originally intended I think (Nathan Scott wrote the code) but I agree with you that it makes more sence to turn off just enforcement as is stated in the manpage. The check in quotaon.c:newstate() was buggy and worked only by luck for XFS. After I fixed error checking of kern_quota_on the check stopped working... I have now committed changes to quota-tools and checked that quotaon now works reasonably with XFS so it should be cleaned up hopefully. Honza -- Jan Kara SUSE Labs, CR From michael.monnerie@is.it-management.at Mon Jun 14 07:45:30 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5ECjUNC041102 for ; Mon, 14 Jun 2010 07:45:30 -0500 X-ASG-Debug-ID: 1276519891-469702d00000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id DD15314A1804 for ; Mon, 14 Jun 2010 05:51:31 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id ELA9sBEmqRadjhf8 for ; Mon, 14 Jun 2010 05:51:31 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id 0CAF817C for ; Mon, 14 Jun 2010 14:48:02 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id 31DBF83C829 for ; Mon, 14 Jun 2010 14:47:54 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs_repair 3.1.2 crashing Subject: Re: xfs_repair 3.1.2 crashing Date: Mon, 14 Jun 2010 14:47:57 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) References: <201006101306.07587@zmi.at> <4C12E520.6040008@sandeen.net> <201006121533.36684@zmi.at> In-Reply-To: <201006121533.36684@zmi.at> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1746527.Gxl1BZt8Vn"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201006141448.01367@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1276519892 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32507 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart1746527.Gxl1BZt8Vn Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable On Samstag, 12. Juni 2010 Michael Monnerie wrote: > [167981.222861] [] > system_call_fastpath+0x16/0x1b =20 Now it's becoming weird. I had that crash with a directory named /disks/daten/samba/backup/uranus/WindowsImageBackup/uranus/Backup\=20 2010-06-12\ 010016/ /bigbackup/Backup\ 2010-06-05\ 010014/ and the file in there is 852c2690-cf1a-11de-b09b-806e6f6e6963.vhd I moved that broken dir away to /, and did a new rsync. And, guess what,=20 I got the same again: the file inside this dir is broken. The 3rd rsync=20 did not make the same error, it seems good. The problem is that the dump=20 is not the same any more, as that PC made a new image in the meantime.=20 But as I got the same error twice on copy via rsync from one PC to=20 another, it looks like I triggered the error just by copying via "rsync=20 =2DaPvHAXy source destpc::dest/". I did an xfs_metadump and just left the 2 broken dirs inside, so you can=20 easily verify: http://zmi.at/backup-metadump-20100614-broken.bz2 xfs_repair 3.1.2 can't repair that, it crashes. The filesystem is mounted with these options: relatime,logbufs=3D8,logbsize=3D256k,attr2,barrier,largeio,swalloc,allocsiz= e=3D256k =2D-=20 mit freundlichen Gr=C3=BCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=C3=A4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart1746527.Gxl1BZt8Vn Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwWJQEACgkQzhSR9xwSCbQ7GgCfTo6JR+xPxUrlhlkqF1tAGIGq PTwAn1deDhFrW8IyRNUuRotKOl1TqmMp =a+aM -----END PGP SIGNATURE----- --nextPart1746527.Gxl1BZt8Vn-- From hch@lst.de Mon Jun 14 07:45:52 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5ECjps8041127 for ; Mon, 14 Jun 2010 07:45:52 -0500 X-ASG-Debug-ID: 1276519914-446202d60000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from verein.lst.de (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id AF88B14A180D for ; Mon, 14 Jun 2010 05:51:54 -0700 (PDT) Received: from verein.lst.de (verein.lst.de [213.95.11.210]) by cuda.sgi.com with ESMTP id qwO3VunGEXkXCFGM for ; Mon, 14 Jun 2010 05:51:54 -0700 (PDT) X-ASG-Whitelist: Client Received: from verein.lst.de (localhost [127.0.0.1]) by verein.lst.de (8.12.3/8.12.3/Debian-7.1) with ESMTP id o5ECm5Xt008576 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=NO); Mon, 14 Jun 2010 14:48:05 +0200 Received: (from hch@localhost) by verein.lst.de (8.12.3/8.12.3/Debian-7.2) id o5ECm4XF008575; Mon, 14 Jun 2010 14:48:04 +0200 Date: Mon, 14 Jun 2010 14:48:04 +0200 From: Christoph Hellwig To: Andi Kleen Cc: Christoph Hellwig , Andi Kleen , xfs@oss.sgi.com, dgc@fromorbit.com X-ASG-Orig-Subj: Re: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 Subject: Re: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 Message-ID: <20100614124804.GA8547@lst.de> References: <20100614081356.GA27499@basil.fritz.box> <20100614083021.GA29354@lst.de> <4C15EF75.5080909@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C15EF75.5080909@linux.intel.com> User-Agent: Mutt/1.3.28i X-Scanned-By: MIMEDefang 2.39 X-Barracuda-Connect: verein.lst.de[213.95.11.210] X-Barracuda-Start-Time: 1276519915 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, Jun 14, 2010 at 10:59:33AM +0200, Andi Kleen wrote: > >How can this work? bp->data is a void pointer. > > It compiled with CONFIG_XFS_DEBUG enabled. Do I need to set some other > option to test this? It fails for me in a normal CONFIG_XFS_DEBUG build: fs/xfs/xfs_da_btree.c: In function 'xfs_da_root_join': fs/xfs/xfs_da_btree.c:737: warning: dereferencing 'void *' pointer fs/xfs/xfs_da_btree.c:737: error: request for member 'magic' in something not a structure or union fs/xfs/xfs_da_btree.c:737: warning: dereferencing 'void *' pointer ... From tao.ma@oracle.com Mon Jun 14 08:35:22 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5EDZMa0042655 for ; Mon, 14 Jun 2010 08:35:22 -0500 X-ASG-Debug-ID: 1276522885-3852003c0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from rcsinet10.oracle.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 0FA88FB1D9F for ; Mon, 14 Jun 2010 06:41:25 -0700 (PDT) Received: from rcsinet10.oracle.com (rcsinet10.oracle.com [148.87.113.121]) by cuda.sgi.com with ESMTP id FmuMDG26zAHCNQx3 for ; Mon, 14 Jun 2010 06:41:25 -0700 (PDT) Received: from acsinet15.oracle.com (acsinet15.oracle.com [141.146.126.227]) by rcsinet10.oracle.com (Switch-3.4.2/Switch-3.4.1) with ESMTP id o5EDbYVL031560 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 14 Jun 2010 13:37:38 GMT Received: from acsmt353.oracle.com (acsmt353.oracle.com [141.146.40.153]) by acsinet15.oracle.com (Switch-3.4.2/Switch-3.4.1) with ESMTP id o5DH2BmH032252; Mon, 14 Jun 2010 13:37:33 GMT Received: from abhmt006.oracle.com by acsmt355.oracle.com with ESMTP id 322915541276522650; Mon, 14 Jun 2010 06:37:30 -0700 Received: from [192.168.1.2] (/114.245.230.98) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 14 Jun 2010 06:37:30 -0700 Message-ID: <4C16308E.1030305@oracle.com> Date: Mon, 14 Jun 2010 21:37:18 +0800 From: Tao Ma Organization: Oracle Corporation User-Agent: Thunderbird 2.0.0.24 (Windows/20100228) MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com, linux-kernel@vger.kernel.org, sandeen@sandeen.net, Alex Elder , Christoph Hellwig X-ASG-Orig-Subj: Re: [PATCH v2] xfs: Make fiemap works with sparse file. Subject: Re: [PATCH v2] xfs: Make fiemap works with sparse file. References: <1276308495-14267-1-git-send-email-tao.ma@oracle.com> <20100614002705.GA6590@dastard> <20100614122912.GD6590@dastard> In-Reply-To: <20100614122912.GD6590@dastard> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Auth-Type: Internal IP X-Source-IP: acsinet15.oracle.com [141.146.126.227] X-CT-RefId: str=0001.0A090202.4C1630A7.00B5:SCFMA922111,ss=1,fgs=0 X-Barracuda-Connect: rcsinet10.oracle.com[148.87.113.121] X-Barracuda-Start-Time: 1276522886 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32511 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hi Dave, Dave Chinner wrote: > On Mon, Jun 14, 2010 at 10:27:06AM +1000, Dave Chinner wrote: > >> On Sat, Jun 12, 2010 at 10:08:15AM +0800, Tao Ma wrote: >> >>> The reason is that in xfs_getbmap we will >>> calculate holes and set it in 'out', while out is malloced by >>> bmv_count(fi_extent_max+1) which didn't consider holes. So in the >>> worst case, if 'out' vector looks like >>> [hole, extent, hole, extent, hole, ... hole, extent, hole], >>> we will only return half of fi_extent_max extents. >>> >> Right, it's not broken, we simply return less than fi_extent_mex >> extents when there are holes. I don't see that as a problem as >> applications have to handle that case anyway, and.... >> >> >>> So in xfs_vn_fiemap, we should consider this worst case. If the >>> user wants fi_extent_max extents, we need a 'out' with size of >>> 2 *fi_extent_max + 2(one more the header). >>> >> That's rather dangerous, I think. It relies on other code to catch >> the buffer overrun that this sets up for fragmented, non-sparse >> files. Personally I'd much prefer to return fewer extents for sparse >> files than to add a landmine like this into the kernel code.... >> > > I just had a thought - if you want to avoid holes being reported to > fiemap, then add a BMV_IF_NO_HOLES flag to xfs_getbmap() and skip > holes in the mappin gloop when this flag is set. That will make > fiemap fill in the full number of extents without hacking the > extent count... > yeah, that should work and I will try to generate a patch for it. I am not quite familiar with xfs, so please be kind to me if I make some stupid mistake in the patch. ;) Regards, Tao From SRS0+Vc/5+14+fromorbit.com=david@internode.on.net Mon Jun 14 08:35:45 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_65 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5EDZio5042680 for ; Mon, 14 Jun 2010 08:35:45 -0500 X-ASG-Debug-ID: 1276522905-248901a00000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id A7F0A12AD390 for ; Mon, 14 Jun 2010 06:41:46 -0700 (PDT) Received: from mail.internode.on.net (bld-mail16.adl2.internode.on.net [150.101.137.101]) by cuda.sgi.com with ESMTP id aSh62txITYWYLtC1 for ; Mon, 14 Jun 2010 06:41:46 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27807932-1927428 for multiple; Mon, 14 Jun 2010 23:08:07 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OO9rP-0002Rf-Ta; Mon, 14 Jun 2010 23:37:55 +1000 Date: Mon, 14 Jun 2010 23:37:55 +1000 From: Dave Chinner To: Andi Kleen Cc: xfs@oss.sgi.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org X-ASG-Orig-Subj: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Subject: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Message-ID: <20100614133755.GE6590@dastard> References: <20100610110.764742110@firstfloor.org> <20100610111052.3DDC5B1A2B@basil.firstfloor.org> <20100614042700.GC6590@dastard> <20100614074309.GA17092@basil.fritz.box> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100614074309.GA17092@basil.fritz.box> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail16.adl2.internode.on.net[150.101.137.101] X-Barracuda-Start-Time: 1276522907 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32511 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, Jun 14, 2010 at 09:43:09AM +0200, Andi Kleen wrote: > On Mon, Jun 14, 2010 at 02:27:00PM +1000, Dave Chinner wrote: > > > There were also some problems with variables used in ASSERT() > > > I partly moved those into the ASSERT itself and partly > > > used a new QASSERT that always evaluates. > > > > That's a pretty ugly hack for a single occurrence of a warning. > > Re-arrnaging the code is a much better idea than introducing a new > > ASSERT type. e.g: > > I originally planned to use it for more, but then ended up > changing other code in other ways. > > I still don't think it's a ugly hack, it's a relatively > simple way to handle this. But I can change this single occurrence. > > > FWIW, we've now got a situation where external static code checkers > > will tell us that we are not handling an error case (which is where > > this code and comment came from), and now the compiler will warn us > > we are assigning but not using the return value. It's a bit of a > > Catch-22 situation. Hence my question is this - how are we supposed > > to "safely" ignore a return value seeing as the compiler is now > > making the current method rather noisy? > > Fix the problem? There is no problem. The end of the error reporting line is the main loop of a background kernel thread - anything important is already stashed for later reporting to a real context - so all that is left to do is throw away the error once it propagated to the top of the call chain.... > Otherwise you can use a (void) cast, but that's a bad way > if there's a real problem. Right, and that's exactly my point - we removed all the (void) casts because the error checker flagged them as dangerous. Now the compiler is complaining about not using the error that is returned. So my question still stands.... > > > (uint)(msbp - msb), rsvd); > > > ASSERT(error == 0); > > > + /* FIXME: need real error handling here, error can be ENOSPC */ > > > > That comment is wrong and hence is not needed. By design, we should > > never, ever get an error here because we've already reserved all the > > space we need and this is just an accounting call. That's what the > > ASSERT(error == 0) is documenting. It's ben placed there to catch > > Ok. But I must say ASSERT() is not really a good way to > document things like that. Whoever wrote this gets > what he deserves now ... We have historically documented code assumptions and bounds with ASSERT() calls rather than in comments because it means they are checked at runtime. It means we find out really quickly when we've made some change that has had an unintended side effect, rather than it going unnoticed until some user trips over it. This one in specific has been there for at least 5 years - goes back to before git was used and has proven to be useful for finding at least one subtle race in new code introduced back in 2007 (45c34141126a89da07197d5b89c04c6847f1171a "[XFS] Apply transaction delta counts atomically to incore counters"). FWIW, there's around 2000 asserts in the XFS code - that's about 2% of the code - which means assumptions in the XFS code are pretty well documented compared to other Linux filesystems... > > function head comment during development. Anyway, if we do get an > > error here, we cannot handle it anyway - it's too late to do > > anything short of a complete shutdown as we've already written the > > transaction to the log. > > Well I guess it should be unconditional BUG_ON then. Don't be silly. A filesystem shutdown is all that is necessary, especially as the XFS shutdown procedure has hooks to turn corruption events into system panics if the admin wants to configure it that way (generally useful for triggering crash dumps on corruption events for offline triage). Cheers, Dave. -- Dave Chinner david@fromorbit.com From andi@firstfloor.org Mon Jun 14 08:37:28 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5EDbS26042728 for ; Mon, 14 Jun 2010 08:37:28 -0500 X-ASG-Debug-ID: 1276523010-249601c00000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from one.firstfloor.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 500D112AD3BE for ; Mon, 14 Jun 2010 06:43:30 -0700 (PDT) Received: from one.firstfloor.org (one.firstfloor.org [213.235.205.2]) by cuda.sgi.com with ESMTP id F5ph8Kf6jgwwIyWg for ; Mon, 14 Jun 2010 06:43:30 -0700 (PDT) Received: from basil.firstfloor.org (p5B3CB7D3.dip0.t-ipconnect.de [91.60.183.211]) by one.firstfloor.org (Postfix) with ESMTP id 916E11A980C3; Mon, 14 Jun 2010 15:39:59 +0200 (CEST) Received: by basil.firstfloor.org (Postfix, from userid 1000) id F3B4FB1A32; Mon, 14 Jun 2010 15:39:58 +0200 (CEST) Date: Mon, 14 Jun 2010 15:39:58 +0200 From: Andi Kleen To: Christoph Hellwig Cc: Andi Kleen , Andi Kleen , xfs@oss.sgi.com, dgc@fromorbit.com X-ASG-Orig-Subj: Re: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 Subject: Re: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 Message-ID: <20100614133958.GH17092@basil.fritz.box> References: <20100614081356.GA27499@basil.fritz.box> <20100614083021.GA29354@lst.de> <4C15EF75.5080909@linux.intel.com> <20100614124804.GA8547@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100614124804.GA8547@lst.de> User-Agent: Mutt/1.5.17 (2007-11-01) X-Barracuda-Connect: one.firstfloor.org[213.235.205.2] X-Barracuda-Start-Time: 1276523011 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32511 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, Jun 14, 2010 at 02:48:04PM +0200, Christoph Hellwig wrote: > On Mon, Jun 14, 2010 at 10:59:33AM +0200, Andi Kleen wrote: > > >How can this work? bp->data is a void pointer. > > > > It compiled with CONFIG_XFS_DEBUG enabled. Do I need to set some other > > option to test this? > > It fails for me in a normal CONFIG_XFS_DEBUG build: > > fs/xfs/xfs_da_btree.c: In function 'xfs_da_root_join': > fs/xfs/xfs_da_btree.c:737: warning: dereferencing 'void *' pointer > fs/xfs/xfs_da_btree.c:737: error: request for member 'magic' in > something not a structure or union > fs/xfs/xfs_da_btree.c:737: warning: dereferencing 'void *' pointer Hmm, it really compiled here (scratching head) % grep XFS .config CONFIG_XFS_FS=m # CONFIG_XFS_QUOTA is not set CONFIG_XFS_POSIX_ACL=y # CONFIG_XFS_RT is not set CONFIG_XFS_DEBUG=y % make CC=gcc46 SUBDIRS=fs/xfs LD fs/xfs/built-in.o CC [M] fs/xfs/linux-2.6/xfs_trace.o CC [M] fs/xfs/linux-2.6/xfs_acl.o CC [M] fs/xfs/linux-2.6/xfs_stats.o CC [M] fs/xfs/linux-2.6/xfs_sysctl.o CC [M] fs/xfs/linux-2.6/xfs_ioctl32.o CC [M] fs/xfs/xfs_alloc.o CC [M] fs/xfs/xfs_alloc_btree.o CC [M] fs/xfs/xfs_attr.o CC [M] fs/xfs/xfs_attr_leaf.o CC [M] fs/xfs/xfs_bit.o CC [M] fs/xfs/xfs_bmap.o CC [M] fs/xfs/xfs_bmap_btree.o CC [M] fs/xfs/xfs_btree.o CC [M] fs/xfs/xfs_buf_item.o CC [M] fs/xfs/xfs_da_btree.o <--------------------------------- CC [M] fs/xfs/xfs_dir2.o CC [M] fs/xfs/xfs_dir2_block.o fs/xfs/xfs_dir2_block.c: In function 'xfs_dir2_sf_to_block': fs/xfs/xfs_dir2_block.c:1153:26: warning: array subscript is above array bounds [-Warray- bounds] ... Do I need to set some other option? -Andi -- ak@linux.intel.com -- Speaking for myself only. From andi@firstfloor.org Mon Jun 14 09:34:48 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5EEYllF044698 for ; Mon, 14 Jun 2010 09:34:47 -0500 X-ASG-Debug-ID: 1276526242-368102fa0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from one.firstfloor.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 84BF81D5A757 for ; Mon, 14 Jun 2010 07:37:22 -0700 (PDT) Received: from one.firstfloor.org (one.firstfloor.org [213.235.205.2]) by cuda.sgi.com with ESMTP id rFQ8pr1DiptrEKH0 for ; Mon, 14 Jun 2010 07:37:22 -0700 (PDT) Received: from basil.firstfloor.org (p5B3CB7D3.dip0.t-ipconnect.de [91.60.183.211]) by one.firstfloor.org (Postfix) with ESMTP id D53141A980C3; Mon, 14 Jun 2010 16:37:21 +0200 (CEST) Received: by basil.firstfloor.org (Postfix, from userid 1000) id AF599B1A32; Mon, 14 Jun 2010 16:37:20 +0200 (CEST) Date: Mon, 14 Jun 2010 16:37:20 +0200 From: Andi Kleen To: Dave Chinner Cc: Andi Kleen , xfs@oss.sgi.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org X-ASG-Orig-Subj: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Subject: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Message-ID: <20100614143720.GI17092@basil.fritz.box> References: <20100610110.764742110@firstfloor.org> <20100610111052.3DDC5B1A2B@basil.firstfloor.org> <20100614042700.GC6590@dastard> <20100614074309.GA17092@basil.fritz.box> <20100614133755.GE6590@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100614133755.GE6590@dastard> User-Agent: Mutt/1.5.17 (2007-11-01) X-Barracuda-Connect: one.firstfloor.org[213.235.205.2] X-Barracuda-Start-Time: 1276526243 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0338 1.0000 -1.8027 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.80 X-Barracuda-Spam-Status: No, SCORE=-1.80 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32514 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean > > > function head comment during development. Anyway, if we do get an > > > error here, we cannot handle it anyway - it's too late to do > > > anything short of a complete shutdown as we've already written the > > > transaction to the log. > > > > Well I guess it should be unconditional BUG_ON then. > > Don't be silly. A filesystem shutdown is all that is necessary, Without BUG_ON it will not end up in kerneloops.org and you will never know about it. That's standard Linux kernel development practice. Maybe XFS should catch up on that. Ok in principle you could make the shutdown a WARN() Anyways I'm out of this. -Andi -- ak@linux.intel.com -- Speaking for myself only. From roman@binarylife.net Mon Jun 14 10:08:49 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,T_DKIM_INVALID autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5EF8mXU045862 for ; Mon, 14 Jun 2010 10:08:49 -0500 X-ASG-Debug-ID: 1276528490-358f03660000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from out1.smtp.messagingengine.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 678FA14A22AB for ; Mon, 14 Jun 2010 08:14:51 -0700 (PDT) Received: from out1.smtp.messagingengine.com (out1.smtp.messagingengine.com [66.111.4.25]) by cuda.sgi.com with ESMTP id 19g9q4BZkhQU8dHI for ; Mon, 14 Jun 2010 08:14:51 -0700 (PDT) Received: from compute2.internal (compute2.internal [10.202.2.42]) by gateway1.messagingengine.com (Postfix) with ESMTP id CA41EF8675; Mon, 14 Jun 2010 11:11:11 -0400 (EDT) Received: from heartbeat2.messagingengine.com ([10.202.2.161]) by compute2.internal (MEProxy); Mon, 14 Jun 2010 11:11:11 -0400 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=messagingengine.com; h=date:from:to:cc:subject:message-id:in-reply-to:references:mime-version:content-type:content-transfer-encoding; s=smtpout; bh=cLk14249P18sJu/JXpYav1vvUaE=; b=LdN5Yk9j0kdmoIQbQUUBnHTK1yQLGPB65B49UqgIYjAeXtHPuWkj98rhNcauDChcnGSXt07DtrczioK5md4K6dskl0mf/vYL4ixiSXj07OfCse+91SIlg0XzZsRG0AmETNqgvIKu7ZlYqQhkxN5R2cCefpqMgPzPYNcBVE72z5c= X-Sasl-enc: 3modDWzv14majjULVAtN4FGqyaVu0v5aXahPo0iPstuf 1276528270 Received: from smola.internal.xtremedata.com (adsl-75-61-228-198.dsl.chcgil.sbcglobal.net [75.61.228.198]) by mail.messagingengine.com (Postfix) with ESMTPSA id D559C454F2; Mon, 14 Jun 2010 11:11:09 -0400 (EDT) Received: from crux.internal.xtremedata.com (crux.internal.xtremedata.com [10.10.0.4]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by smola.internal.xtremedata.com (Postfix) with ESMTPS id 919AE1613C6; Mon, 14 Jun 2010 10:11:08 -0500 (CDT) Received: from abend.internal.xtremedata.com (abend.internal.xtremedata.com [10.10.0.248]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by crux.internal.xtremedata.com (Postfix) with ESMTPS id 3E07C3C20D; Mon, 14 Jun 2010 10:11:08 -0500 (CDT) Date: Mon, 14 Jun 2010 10:11:06 -0500 From: Roman Kononov To: Ilia Mirkin Cc: Dave Chinner , xfs@oss.sgi.com, linux-kernel@vger.kernel.org X-ASG-Orig-Subj: Re: WARNING in xfs_lwr.c, xfs_write() Subject: Re: WARNING in xfs_lwr.c, xfs_write() Message-ID: <20100614101106.6d883a2e@abend.internal.xtremedata.com> In-Reply-To: References: <20100523002023.41f5a5c8@aaa.pulp.binarylife.net> <20100523101856.GL2150@dastard> <20100523092344.0fcaab42@aaa.pulp.binarylife.net> <20100524011907.GC12087@dastard> <20100613224752.GA2069@dastard> <20100614012933.GB6590@dastard> X-Mailer: Claws Mail 3.7.6 (GTK+ 2.20.1; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit X-Barracuda-Connect: out1.smtp.messagingengine.com[66.111.4.25] X-Barracuda-Start-Time: 1276528492 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32517 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 X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean 2010-06-13 23:27 CDT, Ilia Mirkin said: >Instead it will be "mysql works fine on ext3, but with xfs it spams >the logs with warnings, therefore xfs must be broken". I don't think >there's anything realistically that you can do about uninformed users >and FUD. Although I wasn't suggesting to get rid of the warning, >rather to make it more explicit as to what it's warning about. I >interpret a WARN as a BUG that can be recovered but where the >underlying system needs a careful look; my first inclination after >seeing a fs-related WARN would be to take the system down and run an >fsck. What's happening here seems more akin to getting a WARN when >calling an ioctl with invalid parameters. I agree. My reaction to this WARN was horrible: I brought the system down, started fsck-ing and re-installing older kernels, with all kinds of FUD, which took me considerable time. The message was not well explained on the Internet, nor was it clear reading the source code. After talking to the mailing list and investigation of my S/W, I've realized that the system works fine, and the warning now sounds to me as useless and unwanted noise of quite high volume. I am suggesting to issue a notice once per filesytem/mount without taint. The notice could be as such: "WARNING: Userspace issues direct IO which races with buffered or mmap IO on the same file (inode , device ). File data corruption is possible. This message is issued only once per mount". Thanks. From andi@firstfloor.org Mon Jun 14 11:28:51 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,J_CHICKENPOX_25, J_CHICKENPOX_62,J_CHICKENPOX_63,J_CHICKENPOX_64,J_CHICKENPOX_65, LOCAL_GNU_PATCH autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5EGSnhW048605 for ; Mon, 14 Jun 2010 11:28:51 -0500 X-ASG-Debug-ID: 1276533083-2e1c029a0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from one.firstfloor.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id BA5871D5AD96 for ; Mon, 14 Jun 2010 09:31:23 -0700 (PDT) Received: from one.firstfloor.org (one.firstfloor.org [213.235.205.2]) by cuda.sgi.com with ESMTP id x8OlMqLXHLdNVrAE for ; Mon, 14 Jun 2010 09:31:23 -0700 (PDT) Received: from basil.firstfloor.org (p5B3CB7D3.dip0.t-ipconnect.de [91.60.183.211]) by one.firstfloor.org (Postfix) with ESMTP id DCFCA1A980C3; Mon, 14 Jun 2010 18:31:22 +0200 (CEST) Received: by basil.firstfloor.org (Postfix, from userid 1000) id 4BD38B1A32; Mon, 14 Jun 2010 18:31:22 +0200 (CEST) Date: Mon, 14 Jun 2010 18:31:22 +0200 From: Andi Kleen To: Andi Kleen Cc: Christoph Hellwig , Andi Kleen , xfs@oss.sgi.com, dgc@fromorbit.com X-ASG-Orig-Subj: Re: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 Subject: Re: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 Message-ID: <20100614163122.GB369@basil.fritz.box> References: <20100614081356.GA27499@basil.fritz.box> <20100614083021.GA29354@lst.de> <4C15EF75.5080909@linux.intel.com> <20100614124804.GA8547@lst.de> <20100614133958.GH17092@basil.fritz.box> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100614133958.GH17092@basil.fritz.box> User-Agent: Mutt/1.5.17 (2007-11-01) X-Barracuda-Connect: one.firstfloor.org[213.235.205.2] X-Barracuda-Start-Time: 1276533084 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: 0.98 X-Barracuda-Spam-Status: No, SCORE=0.98 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_SC0_SA550, BSF_SC0_SA_TO_FROM_ADDR_MATCH X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32520 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.50 BSF_SC0_SA_TO_FROM_ADDR_MATCH Sender Address Matches Recipient Address 2.50 BSF_SC0_SA550 Custom Rule SA550 X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, Jun 14, 2010 at 03:39:58PM +0200, Andi Kleen wrote: > On Mon, Jun 14, 2010 at 02:48:04PM +0200, Christoph Hellwig wrote: > > On Mon, Jun 14, 2010 at 10:59:33AM +0200, Andi Kleen wrote: > > > >How can this work? bp->data is a void pointer. > > > > > > It compiled with CONFIG_XFS_DEBUG enabled. Do I need to set some other > > > option to test this? > > > > It fails for me in a normal CONFIG_XFS_DEBUG build: > > > > fs/xfs/xfs_da_btree.c: In function 'xfs_da_root_join': > > fs/xfs/xfs_da_btree.c:737: warning: dereferencing 'void *' pointer > > fs/xfs/xfs_da_btree.c:737: error: request for member 'magic' in > > something not a structure or union > > fs/xfs/xfs_da_btree.c:737: warning: dereferencing 'void *' pointer > > > Hmm, it really compiled here (scratching head) Never mind, it seems SUBDIRS doesn't set the DEBUG flag correctly. Anyways I just dropped those hunks and you'll have to live with the warnings if you don't want QASSERT. Final version -Andi --- XFS: Fix gcc 4.6 set but not read and unused statement warnings v3 For my configuration, that is without quota or RT. Mostly dead code removed I think (but needs additional review) That is there were one or two bad error handling cases, but they were not easily fixable, with comments and I left the warnings in for those for you to remember. e.g. if there is a ENOSPC down in xfs_trans.c while modifying the superblock it would not be handled. Unused statements were mostly related to stub macros for disabled features like QUOTA or RT ALLOC. I replace those with inlines. There were also some problems with variables used in ASSERT() I partly moved those into the ASSERT itself. v2: QASSERT removed. Dave Chinners comments addressed (well the one I liked). CONFIG_XFS_DEBUG builds again now. I checked RT+QUOTA enabled and there was no new warnings (if someone is interested i put the remaining ones at http://halobates.de/xfs-all-gcc46) v3: Finally fix DEBUG build Cc: xfs@oss.sgi.com Signed-off-by: Andi Kleen --- fs/xfs/linux-2.6/xfs_sync.c | 3 +++ fs/xfs/xfs_alloc.c | 10 +++------- fs/xfs/xfs_da_btree.c | 6 ++---- fs/xfs/xfs_dir2_block.c | 6 +++--- fs/xfs/xfs_filestream.c | 16 +++++----------- fs/xfs/xfs_iget.c | 3 --- fs/xfs/xfs_inode.c | 4 ---- fs/xfs/xfs_inode_item.c | 7 ++----- fs/xfs/xfs_log.c | 2 -- fs/xfs/xfs_quota.h | 14 ++++++++++---- fs/xfs/xfs_trans.c | 6 +++++- 11 files changed, 33 insertions(+), 44 deletions(-) Index: linux-2.6.35-rc3-gcc/fs/xfs/linux-2.6/xfs_sync.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/linux-2.6/xfs_sync.c +++ linux-2.6.35-rc3-gcc/fs/xfs/linux-2.6/xfs_sync.c @@ -554,6 +554,9 @@ xfs_sync_worker( xfs_log_force(mp, 0); xfs_reclaim_inodes(mp, 0); /* dgc: errors ignored here */ + /* ak: yes and you'll get a warning for it now when you + * upgrade compilers. + */ error = xfs_qm_sync(mp, SYNC_TRYLOCK); if (xfs_log_need_covered(mp)) error = xfs_commit_dummy_trans(mp, 0); Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_da_btree.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_da_btree.c +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_da_btree.c @@ -581,16 +581,14 @@ xfs_da_node_add(xfs_da_state_t *state, x xfs_da_intnode_t *node; xfs_da_node_entry_t *btree; int tmp; - xfs_mount_t *mp; node = oldblk->bp->data; - mp = state->mp; ASSERT(be16_to_cpu(node->hdr.info.magic) == XFS_DA_NODE_MAGIC); ASSERT((oldblk->index >= 0) && (oldblk->index <= be16_to_cpu(node->hdr.count))); ASSERT(newblk->blkno != 0); if (state->args->whichfork == XFS_DATA_FORK) - ASSERT(newblk->blkno >= mp->m_dirleafblk && - newblk->blkno < mp->m_dirfreeblk); + ASSERT(newblk->blkno >= state->mp->m_dirleafblk && + newblk->blkno < state->mp->m_dirfreeblk); /* * We may need to make some room before we insert the new node. Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_dir2_block.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_dir2_block.c +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_dir2_block.c @@ -1073,10 +1073,10 @@ xfs_dir2_sf_to_block( */ buf_len = dp->i_df.if_bytes; - buf = kmem_alloc(dp->i_df.if_bytes, KM_SLEEP); + buf = kmem_alloc(buf_len, KM_SLEEP); - memcpy(buf, sfp, dp->i_df.if_bytes); - xfs_idata_realloc(dp, -dp->i_df.if_bytes, XFS_DATA_FORK); + memcpy(buf, sfp, buf_len); + xfs_idata_realloc(dp, -buf_len, XFS_DATA_FORK); dp->i_d.di_size = 0; xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE); /* Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_filestream.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_filestream.c +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_filestream.c @@ -140,9 +140,8 @@ _xfs_filestream_pick_ag( int flags, xfs_extlen_t minlen) { - int streams, max_streams; int err, trylock, nscan; - xfs_extlen_t longest, free, minfree, maxfree = 0; + xfs_extlen_t longest, minfree, maxfree = 0; xfs_agnumber_t ag, max_ag = NULLAGNUMBER; struct xfs_perag *pag; @@ -174,7 +173,6 @@ _xfs_filestream_pick_ag( /* Keep track of the AG with the most free blocks. */ if (pag->pagf_freeblks > maxfree) { maxfree = pag->pagf_freeblks; - max_streams = atomic_read(&pag->pagf_fstrms); max_ag = ag; } @@ -196,8 +194,6 @@ _xfs_filestream_pick_ag( (flags & XFS_PICK_LOWSPACE))) { /* Break out, retaining the reference on the AG. */ - free = pag->pagf_freeblks; - streams = atomic_read(&pag->pagf_fstrms); xfs_perag_put(pag); *agp = ag; break; @@ -234,8 +230,6 @@ next_ag: if (max_ag != NULLAGNUMBER) { xfs_filestream_get_ag(mp, max_ag); TRACE_AG_PICK1(mp, max_ag, maxfree); - streams = max_streams; - free = maxfree; *agp = max_ag; break; } @@ -364,7 +358,8 @@ xfs_fstrm_free_func( /* Drop the reference taken on the AG when the item was added. */ ref = xfs_filestream_put_ag(ip->i_mount, item->ag); - ASSERT(ref >= 0); + if (ref < 0) + ASSERT(0); TRACE_FREE(ip->i_mount, ip, item->pip, item->ag, xfs_filestream_peek_ag(ip->i_mount, item->ag)); @@ -465,7 +460,6 @@ xfs_filestream_lookup_ag( xfs_mru_cache_t *cache; fstrm_item_t *item; xfs_agnumber_t ag; - int ref; if (!(ip->i_d.di_mode & (S_IFREG | S_IFDIR))) { ASSERT(0); @@ -481,10 +475,10 @@ xfs_filestream_lookup_ag( ASSERT(ip == item->ip); ag = item->ag; - ref = xfs_filestream_peek_ag(ip->i_mount, ag); xfs_mru_cache_done(cache); - TRACE_LOOKUP(ip->i_mount, ip, item->pip, ag, ref); + TRACE_LOOKUP(ip->i_mount, ip, item->pip, ag, + xfs_filestream_peek_ag(ip->i_mount, ag)); return ag; } Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_iget.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_iget.c +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_iget.c @@ -265,7 +265,6 @@ xfs_iget_cache_miss( { struct xfs_inode *ip; int error; - unsigned long first_index, mask; xfs_agino_t agino = XFS_INO_TO_AGINO(mp, ino); ip = xfs_inode_alloc(mp, ino); @@ -302,8 +301,6 @@ xfs_iget_cache_miss( BUG(); } - mask = ~(((XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_inodelog)) - 1); - first_index = agino & mask; write_lock(&pag->pag_ici_lock); /* insert the new inode */ Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_inode.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_inode.c +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_inode.c @@ -925,7 +925,6 @@ xfs_iread_extents( int error; xfs_ifork_t *ifp; xfs_extnum_t nextents; - size_t size; if (unlikely(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE)) { XFS_ERROR_REPORT("xfs_iread_extents", XFS_ERRLEVEL_LOW, @@ -933,7 +932,6 @@ xfs_iread_extents( return XFS_ERROR(EFSCORRUPTED); } nextents = XFS_IFORK_NEXTENTS(ip, whichfork); - size = nextents * sizeof(xfs_bmbt_rec_t); ifp = XFS_IFORK_PTR(ip, whichfork); /* @@ -3517,13 +3515,11 @@ xfs_iext_remove_indirect( xfs_extnum_t ext_diff; /* extents to remove in current list */ xfs_extnum_t nex1; /* number of extents before idx */ xfs_extnum_t nex2; /* extents after idx + count */ - int nlists; /* entries in indirection array */ int page_idx = idx; /* index in target extent list */ ASSERT(ifp->if_flags & XFS_IFEXTIREC); erp = xfs_iext_idx_to_irec(ifp, &page_idx, &erp_idx, 0); ASSERT(erp != NULL); - nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ; nex1 = page_idx; ext_cnt = count; while (ext_cnt) { Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_inode_item.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_inode_item.c +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_inode_item.c @@ -323,9 +323,8 @@ xfs_inode_item_format( ASSERT(ip->i_df.if_u1.if_extents != NULL); ASSERT(ip->i_d.di_nextents > 0); ASSERT(iip->ili_extents_buf == NULL); - nrecs = ip->i_df.if_bytes / - (uint)sizeof(xfs_bmbt_rec_t); - ASSERT(nrecs > 0); + ASSERT((ip->i_df.if_bytes / + (uint)sizeof(xfs_bmbt_rec_t)) > 0); #ifdef XFS_NATIVE_HOST if (nrecs == ip->i_d.di_nextents) { /* @@ -957,10 +956,8 @@ xfs_iflush_abort( xfs_inode_t *ip) { xfs_inode_log_item_t *iip = ip->i_itemp; - xfs_mount_t *mp; iip = ip->i_itemp; - mp = ip->i_mount; if (iip) { struct xfs_ail *ailp = iip->ili_item.li_ailp; if (iip->ili_item.li_flags & XFS_LI_IN_AIL) { Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_log.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_log.c +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_log.c @@ -1047,7 +1047,6 @@ xlog_alloc_log(xfs_mount_t *mp, xlog_in_core_t *iclog, *prev_iclog=NULL; xfs_buf_t *bp; int i; - int iclogsize; int error = ENOMEM; uint log2_size = 0; @@ -1127,7 +1126,6 @@ xlog_alloc_log(xfs_mount_t *mp, * with different amounts of memory. See the definition of * xlog_in_core_t in xfs_log_priv.h for details. */ - iclogsize = log->l_iclog_size; ASSERT(log->l_iclog_size >= 4096); for (i=0; i < log->l_iclog_bufs; i++) { *iclogp = kmem_zalloc(sizeof(xlog_in_core_t), KM_MAYFAIL); Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_quota.h =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_quota.h +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_quota.h @@ -346,7 +346,13 @@ xfs_qm_vop_dqalloc(struct xfs_inode *ip, #define xfs_trans_mod_dquot_byino(tp, ip, fields, delta) #define xfs_trans_apply_dquot_deltas(tp) #define xfs_trans_unreserve_and_mod_dquots(tp) -#define xfs_trans_reserve_quota_nblks(tp, ip, nblks, ninos, flags) (0) + +static inline int xfs_trans_reserve_quota_nblks(struct xfs_trans *t, + struct xfs_inode *i, long a, long b, uint c) +{ + return 0; +} + #define xfs_trans_reserve_quota_bydquots(tp, mp, u, g, nb, ni, fl) (0) #define xfs_qm_vop_create_dqattach(tp, ip, u, g) #define xfs_qm_vop_rename_dqattach(it) (0) @@ -355,13 +361,13 @@ xfs_qm_vop_dqalloc(struct xfs_inode *ip, #define xfs_qm_dqattach(ip, fl) (0) #define xfs_qm_dqattach_locked(ip, fl) (0) #define xfs_qm_dqdetach(ip) -#define xfs_qm_dqrele(d) +static inline void xfs_qm_dqrele(struct xfs_dquot *d) {} #define xfs_qm_statvfs(ip, s) -#define xfs_qm_sync(mp, fl) (0) +static inline int xfs_qm_sync(struct xfs_mount *m, int i) { return 0; } #define xfs_qm_newmount(mp, a, b) (0) #define xfs_qm_mount_quotas(mp) #define xfs_qm_unmount(mp) -#define xfs_qm_unmount_quotas(mp) (0) +static inline void xfs_qm_unmount_quotas(struct xfs_mount *m) {} #endif /* CONFIG_XFS_QUOTA */ #define xfs_trans_unreserve_quota_nblks(tp, ip, nblks, ninos, flags) \ Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_trans.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_trans.c +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_trans.c @@ -1119,7 +1119,11 @@ xfs_trans_unreserve_and_mod_sb( if (msbp > msb) { error = xfs_mod_incore_sb_batch(tp->t_mountp, msb, (uint)(msbp - msb), rsvd); - ASSERT(error == 0); + /* + * When an error happens here it's a race that's supposed + * to be fixed. Check for this unconditionally. + */ + BUG_ON(error != 0); } } Index: linux-2.6.35-rc3-gcc/fs/xfs/xfs_alloc.c =================================================================== --- linux-2.6.35-rc3-gcc.orig/fs/xfs/xfs_alloc.c +++ linux-2.6.35-rc3-gcc/fs/xfs/xfs_alloc.c @@ -688,8 +688,6 @@ xfs_alloc_ag_vextent_near( xfs_agblock_t ltbno; /* start bno of left side entry */ xfs_agblock_t ltbnoa; /* aligned ... */ xfs_extlen_t ltdiff; /* difference to left side entry */ - /*REFERENCED*/ - xfs_agblock_t ltend; /* end bno of left side entry */ xfs_extlen_t ltlen; /* length of left side entry */ xfs_extlen_t ltlena; /* aligned ... */ xfs_agblock_t ltnew; /* useful start bno of left side */ @@ -814,8 +812,7 @@ xfs_alloc_ag_vextent_near( if ((error = xfs_alloc_get_rec(cnt_cur, <bno, <len, &i))) goto error0; XFS_WANT_CORRUPTED_GOTO(i == 1, error0); - ltend = ltbno + ltlen; - ASSERT(ltend <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length)); + ASSERT(ltbno + ltlen <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length)); args->len = blen; if (!xfs_alloc_fix_minleft(args)) { xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR); @@ -828,7 +825,7 @@ xfs_alloc_ag_vextent_near( */ args->agbno = bnew; ASSERT(bnew >= ltbno); - ASSERT(bnew + blen <= ltend); + ASSERT(bnew + blen <= ltbno + ltlen); /* * Set up a cursor for the by-bno tree. */ @@ -1157,7 +1154,6 @@ xfs_alloc_ag_vextent_near( /* * Fix up the length and compute the useful address. */ - ltend = ltbno + ltlen; args->len = XFS_EXTLEN_MIN(ltlena, args->maxlen); xfs_alloc_fix_len(args); if (!xfs_alloc_fix_minleft(args)) { @@ -1170,7 +1166,7 @@ xfs_alloc_ag_vextent_near( (void)xfs_alloc_compute_diff(args->agbno, rlen, args->alignment, ltbno, ltlen, <new); ASSERT(ltnew >= ltbno); - ASSERT(ltnew + rlen <= ltend); + ASSERT(ltnew + rlen <= ltbno + ltlen); ASSERT(ltnew + rlen <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length)); args->agbno = ltnew; if ((error = xfs_alloc_fixup_trees(cnt_cur, bno_cur_lt, ltbno, ltlen, From SRS0+wWFy+14+fromorbit.com=david@internode.on.net Mon Jun 14 17:22:39 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5EMMcmr059081 for ; Mon, 14 Jun 2010 17:22:39 -0500 X-ASG-Debug-ID: 1276554521-3260014c0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id EBE0B12ADAA1 for ; Mon, 14 Jun 2010 15:28:41 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id 1iOBJBqfsx0CqorH for ; Mon, 14 Jun 2010 15:28:41 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27990087-1927428 for multiple; Tue, 15 Jun 2010 07:55:00 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OOI5S-00036O-8G; Tue, 15 Jun 2010 08:24:58 +1000 Date: Tue, 15 Jun 2010 08:24:58 +1000 From: Dave Chinner To: Andi Kleen Cc: xfs@oss.sgi.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org X-ASG-Orig-Subj: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Subject: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Message-ID: <20100614222458.GF6590@dastard> References: <20100610110.764742110@firstfloor.org> <20100610111052.3DDC5B1A2B@basil.firstfloor.org> <20100614042700.GC6590@dastard> <20100614074309.GA17092@basil.fritz.box> <20100614133755.GE6590@dastard> <20100614143720.GI17092@basil.fritz.box> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100614143720.GI17092@basil.fritz.box> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1276554523 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0020 1.0000 -2.0080 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.01 X-Barracuda-Spam-Status: No, SCORE=-2.01 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32544 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, Jun 14, 2010 at 04:37:20PM +0200, Andi Kleen wrote: > > > > function head comment during development. Anyway, if we do get an > > > > error here, we cannot handle it anyway - it's too late to do > > > > anything short of a complete shutdown as we've already written the > > > > transaction to the log. > > > > > > Well I guess it should be unconditional BUG_ON then. > > > > Don't be silly. A filesystem shutdown is all that is necessary, > > Without BUG_ON it will not end up in kerneloops.org and you will > never know about it. We find out about corrupted filesystems all the time from users sending mail to the list. Even if we did panic by default on corruption events, kerneloops.org is *useless* for reporting them because finding out about a corruption is only the very first step of what is usually a long and involved process that requires user interaction to gather information necessary to find the cause of the corruption. Besides, if we _really_ want the machine to panic on corruption, then we configure the machine specifically for it via setting the relevant corruption type bit in /proc/sys/fs/xfs/panic_mask. This is generally only used when a developer asks a user to set it to get kernel crash dumps triggered when a corruption event occurs so we can do remote, offline analysis of the failure. > That's standard Linux kernel development > practice. Maybe XFS should catch up on that. I find this really amusing because linux filesystems have, over the last few years, implemented a simpler version of XFS's way of dealing with corruption events(*). Perhaps you should catch up with the state of the art before throwing rocks, Andi.... Cheers, Dave. (*) extN, fat, hpfs, jfs, nilfs2, ntfs, ocfs2 and logfs all have configurable corruption event behaviour that default to remount-ro and can be configured to panic the machine. -- Dave Chinner david@fromorbit.com From SRS0+mffZ+15+fromorbit.com=david@internode.on.net Mon Jun 14 19:52:11 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5F0qBlW064050 for ; Mon, 14 Jun 2010 19:52:11 -0500 X-ASG-Debug-ID: 1276563285-033900be0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 9C1693C7872 for ; Mon, 14 Jun 2010 17:54:46 -0700 (PDT) Received: from mail.internode.on.net (bld-mail12.adl6.internode.on.net [150.101.137.97]) by cuda.sgi.com with ESMTP id ASohuIhutP4RmIlx for ; Mon, 14 Jun 2010 17:54:46 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27908564-1927428 for multiple; Tue, 15 Jun 2010 10:24:44 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OOKQM-0003Gj-B7; Tue, 15 Jun 2010 10:54:42 +1000 Date: Tue, 15 Jun 2010 10:54:42 +1000 From: Dave Chinner To: Andi Kleen Cc: Andi Kleen , Christoph Hellwig , dgc@fromorbit.com, xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 Subject: Re: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 Message-ID: <20100615005442.GL6590@dastard> References: <20100614081356.GA27499@basil.fritz.box> <20100614083021.GA29354@lst.de> <4C15EF75.5080909@linux.intel.com> <20100614124804.GA8547@lst.de> <20100614133958.GH17092@basil.fritz.box> <20100614163122.GB369@basil.fritz.box> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100614163122.GB369@basil.fritz.box> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail12.adl6.internode.on.net[150.101.137.97] X-Barracuda-Start-Time: 1276563287 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32547 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, Jun 14, 2010 at 06:31:22PM +0200, Andi Kleen wrote: > On Mon, Jun 14, 2010 at 03:39:58PM +0200, Andi Kleen wrote: > > On Mon, Jun 14, 2010 at 02:48:04PM +0200, Christoph Hellwig wrote: > > > On Mon, Jun 14, 2010 at 10:59:33AM +0200, Andi Kleen wrote: > > > > >How can this work? bp->data is a void pointer. > > > > > > > > It compiled with CONFIG_XFS_DEBUG enabled. Do I need to set some other > > > > option to test this? > > > > > > It fails for me in a normal CONFIG_XFS_DEBUG build: > > > > > > fs/xfs/xfs_da_btree.c: In function 'xfs_da_root_join': > > > fs/xfs/xfs_da_btree.c:737: warning: dereferencing 'void *' pointer > > > fs/xfs/xfs_da_btree.c:737: error: request for member 'magic' in > > > something not a structure or union > > > fs/xfs/xfs_da_btree.c:737: warning: dereferencing 'void *' pointer > > > > > > Hmm, it really compiled here (scratching head) > > Never mind, it seems SUBDIRS doesn't set the DEBUG flag correctly. > > Anyways I just dropped those hunks and you'll have to live with > the warnings if you don't want QASSERT. I'm still not happy with it. We'll commit a modified version of one of your patches into the XFS tree as you seem unable to accept that changes might be necessary to get your code to pass review. Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0++2Dd+15+fromorbit.com=david@internode.on.net Mon Jun 14 20:18:50 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5F1Io8O064779 for ; Mon, 14 Jun 2010 20:18:50 -0500 X-ASG-Debug-ID: 1276565094-41d101170000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id B3C77AE0442 for ; Mon, 14 Jun 2010 18:24:55 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id x81nzgWzDalodI3a for ; Mon, 14 Jun 2010 18:24:55 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28012329-1927428 for multiple; Tue, 15 Jun 2010 10:51:16 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OOKq3-0003Ij-27; Tue, 15 Jun 2010 11:21:15 +1000 Date: Tue, 15 Jun 2010 11:21:15 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com, Eric Sandeen X-ASG-Orig-Subj: Re: [PATCH 1/3] xfs: fix corruption case for block size < page size Subject: Re: [PATCH 1/3] xfs: fix corruption case for block size < page size Message-ID: <20100615012114.GM6590@dastard> References: <20100611161312.446670249@bombadil.infradead.org> <20100611161510.303551652@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100611161510.303551652@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1276565096 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32548 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jun 11, 2010 at 12:13:13PM -0400, Christoph Hellwig wrote: > From: Eric Sandeen > > xfstests 194 first truncats a file back and then extends it again by > truncating it to a larger size. This causes discard_buffer to drop > the mapped, but not the uptodate bit and thus creates something that > xfs_page_state_convert takes for unmapped space created by mmap because > it doesn't check for the dirty bit, which also gets cleared by > discard_buffer and checked by other ->writepage implementations like > block_write_full_page. Handle this kind of buffers early, and unlike > Eric's first version of the patch simply ASSERT that the buffers is > dirty, given that the mmap write case can't happen anymore since the > introduction of ->page_mkwrite. The now dead code dealing with that > will be deleted in a follow on patch. > > Signed-off-by: Eric Sandeen > Signed-off-by: Christoph Hellwig Looks good. Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From SRS0+277A+15+fromorbit.com=david@internode.on.net Mon Jun 14 20:35:07 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5F1Z7O8065186 for ; Mon, 14 Jun 2010 20:35:07 -0500 X-ASG-Debug-ID: 1276565860-0e0d01c80000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 64CB13C7E90 for ; Mon, 14 Jun 2010 18:37:40 -0700 (PDT) Received: from mail.internode.on.net (bld-mail19.adl2.internode.on.net [150.101.137.104]) by cuda.sgi.com with ESMTP id kXocAB1z4u7zdS6K for ; Mon, 14 Jun 2010 18:37:40 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27767563-1927428 for multiple; Tue, 15 Jun 2010 11:07:39 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OOL5t-0003Jf-6A; Tue, 15 Jun 2010 11:37:37 +1000 Date: Tue, 15 Jun 2010 11:37:37 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 2/3] xfs: simplify xfs_vm_releasepage Subject: Re: [PATCH 2/3] xfs: simplify xfs_vm_releasepage Message-ID: <20100615013737.GN6590@dastard> References: <20100611161312.446670249@bombadil.infradead.org> <20100611161511.791495868@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20100611161511.791495868@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail19.adl2.internode.on.net[150.101.137.104] X-Barracuda-Start-Time: 1276565863 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32549 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jun 11, 2010 at 12:13:14PM -0400, Christoph Hellwig wrote: > Currently the xfs releasepage implementation has code to deal with converting > delayed allocated and unwritten space. But we never get called for those as > we always convert delayed and unwritten space when cleaning a page, or drop > the state from the buffers in block_invalidatepage. We still keep a WARN_ON > on those cases for now, but remove all the case dealing with it, which allows > to fold xfs_page_state_convert into xfs_vm_writepage and remove the !startio > case from the whole writeback path. > > Signed-off-by: Christoph Hellwig Looks good. Couple of things: > + > + /* > + * VM calculation for nr_to_write seems off. Bump it way > + * up, this gets simple streaming writes zippy again. > + * To be reviewed again after Jens' writeback changes. > + */ > + wbc->nr_to_write *= 4; > + That's gone in mainline as of as of .35-rc3. We need to get the xfs-dev tree updated. Otherwise, conѕider it: Reviewed-by: Dave Chinner Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0+AiuP+15+fromorbit.com=david@internode.on.net Mon Jun 14 20:48:15 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5F1mF5x065714 for ; Mon, 14 Jun 2010 20:48:15 -0500 X-ASG-Debug-ID: 1276566860-370d037e0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 1732EAE2BC2 for ; Mon, 14 Jun 2010 18:54:20 -0700 (PDT) Received: from mail.internode.on.net (bld-mail14.adl6.internode.on.net [150.101.137.99]) by cuda.sgi.com with ESMTP id Q88ksHRTcHwv8UTS for ; Mon, 14 Jun 2010 18:54:20 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28194217-1927428 for multiple; Tue, 15 Jun 2010 11:20:48 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OOLId-0003KV-9d; Tue, 15 Jun 2010 11:50:47 +1000 Date: Tue, 15 Jun 2010 11:50:47 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 3/3] xfs: simplify xfs_vm_writepage Subject: Re: [PATCH 3/3] xfs: simplify xfs_vm_writepage Message-ID: <20100615015047.GO6590@dastard> References: <20100611161312.446670249@bombadil.infradead.org> <20100611161512.404472115@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100611161512.404472115@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail14.adl6.internode.on.net[150.101.137.99] X-Barracuda-Start-Time: 1276566862 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32550 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jun 11, 2010 at 12:13:15PM -0400, Christoph Hellwig wrote: > The writepage implementation in XFS still tries to deal with dirty but > unmapped buffers which used to caused by writes through shared mmaps. Since > the introduction of ->page_mkwrite these can't happen anymore, so remove the > code dealing with them. > > Note that the all_bh variable which causes us to start I/O on all buffers on > the pages was controlled by the count of unmapped buffers, which also > included those not actually dirty. It's now unconditionally initialized to > 0 but set to 1 for the case of small file size extensions. It probably can > be removed entirely, but that's left for another patch. > > Signed-off-by: Christoph Hellwig Looks good. Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From SRS0+277A+15+fromorbit.com=david@internode.on.net Mon Jun 14 20:50:28 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5F1oR4v065790 for ; Mon, 14 Jun 2010 20:50:28 -0500 X-ASG-Debug-ID: 1276566782-09ca00f90000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 1E9BB14CF1EE for ; Mon, 14 Jun 2010 18:53:02 -0700 (PDT) Received: from mail.internode.on.net (bld-mail19.adl2.internode.on.net [150.101.137.104]) by cuda.sgi.com with ESMTP id GYMEguPCojSQIIyN for ; Mon, 14 Jun 2010 18:53:02 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27769756-1927428 for multiple; Tue, 15 Jun 2010 11:23:01 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OOLKm-0003Ks-Og; Tue, 15 Jun 2010 11:53:00 +1000 Date: Tue, 15 Jun 2010 11:53:00 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfs: remove xfs_iput_new Subject: Re: [PATCH] xfs: remove xfs_iput_new Message-ID: <20100615015300.GP6590@dastard> References: <20100611161824.GA7556@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100611161824.GA7556@infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail19.adl2.internode.on.net[150.101.137.104] X-Barracuda-Start-Time: 1276566784 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0635 1.0000 -1.6154 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.62 X-Barracuda-Spam-Status: No, SCORE=-1.62 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32551 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jun 11, 2010 at 12:18:24PM -0400, Christoph Hellwig wrote: > We never get an i_mode of 0 or a locked VFS inode until we pass in the > XFS_IGET_CREATE flag to xfs_iget, which makes xfs_iput_new equivalent to > xfs_iput for the only caller. > > Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From SRS0+AiuP+15+fromorbit.com=david@internode.on.net Mon Jun 14 21:17:32 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: *** X-Spam-Status: No, score=3.2 required=5.0 tests=BAYES_00,HEADER_ESQ, J_CHICKENPOX_33 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5F2HWjZ066688 for ; Mon, 14 Jun 2010 21:17:32 -0500 X-ASG-Debug-ID: 1276568407-34da015f0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id AFE883C7A22 for ; Mon, 14 Jun 2010 19:20:07 -0700 (PDT) Received: from mail.internode.on.net (bld-mail14.adl6.internode.on.net [150.101.137.99]) by cuda.sgi.com with ESMTP id ESQ9ye9B5L5evERr for ; Mon, 14 Jun 2010 19:20:07 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28198389-1927428 for multiple; Tue, 15 Jun 2010 11:49:46 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OOLke-0003Mr-BL; Tue, 15 Jun 2010 12:19:44 +1000 Date: Tue, 15 Jun 2010 12:19:44 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com, npiggin@suse.de, viro@zeniv.linux.org.uk X-ASG-Orig-Subj: Re: [PATCH] xfs: new truncate sequence Subject: Re: [PATCH] xfs: new truncate sequence Message-ID: <20100615021944.GQ6590@dastard> References: <20100614091731.GA22088@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100614091731.GA22088@infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail14.adl6.internode.on.net[150.101.137.99] X-Barracuda-Start-Time: 1276568408 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32553 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, Jun 14, 2010 at 05:17:31AM -0400, Christoph Hellwig wrote: > Convert XFS to the new truncate sequence. We still can have errors after > updating the file size in xfs_setattr, but these are real I/O errors and lead > to a transaction abort and filesystem shutdown, so they are not an issue. > > Errors from ->write_begin and write_end can now be handled correctly because > we can actually get rid of the delalloc extents while previous the buffer > state was stipped in block_invalidatepage. > > There is still no error handling for ->direct_IO, because doing so will need > some major restructuring given that we only have the iolock shared and do not > hold i_mutex at all. Fortunately leaving the normally allocated blocks behind > there is not a major issue and this will get cleaned up by xfs_free_eofblock > later. > > Note: the patch is against Al's vfs.git tree as that contains the nessecary > preparations. I'd prefer to get it applied there so that we can get some > testing in linux-next. > > Signed-off-by: Christoph Hellwig It looks sane, but I haven't done any testing on it. Cheers, Dave. -- Dave Chinner david@fromorbit.com From BATV+0e448f5b76c0517233da+2487+infradead.org+hch@bombadil.srs.infradead.org Tue Jun 15 01:19:34 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5F6JVBA075725 for ; Tue, 15 Jun 2010 01:19:34 -0500 X-ASG-Debug-ID: 1276583139-1bb301330000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 0F432AE9730 for ; Mon, 14 Jun 2010 23:25:39 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id NC3MDTQanp3HhOlx for ; Mon, 14 Jun 2010 23:25:39 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OOPXA-0001qi-BN; Tue, 15 Jun 2010 06:22:04 +0000 Date: Tue, 15 Jun 2010 02:22:04 -0400 From: Christoph Hellwig To: Dave Chinner Cc: Christoph Hellwig , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 2/3] xfs: simplify xfs_vm_releasepage Subject: Re: [PATCH 2/3] xfs: simplify xfs_vm_releasepage Message-ID: <20100615062204.GA6974@infradead.org> References: <20100611161312.446670249@bombadil.infradead.org> <20100611161511.791495868@bombadil.infradead.org> <20100615013737.GN6590@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100615013737.GN6590@dastard> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1276583140 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 15, 2010 at 11:37:37AM +1000, Dave Chinner wrote: > > + /* > > + * VM calculation for nr_to_write seems off. Bump it way > > + * up, this gets simple streaming writes zippy again. > > + * To be reviewed again after Jens' writeback changes. > > + */ > > + wbc->nr_to_write *= 4; > > + > > That's gone in mainline as of as of .35-rc3. We need to get the > xfs-dev tree updated. It's still in the XFS tree. Either we need to rebase that one, or sort it out during a merge. From andi@firstfloor.org Tue Jun 15 02:00:13 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5F70Ckj076943 for ; Tue, 15 Jun 2010 02:00:13 -0500 X-ASG-Debug-ID: 1276585578-158c03350000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from one.firstfloor.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 7DAC2AE9983 for ; Tue, 15 Jun 2010 00:06:18 -0700 (PDT) Received: from one.firstfloor.org (one.firstfloor.org [213.235.205.2]) by cuda.sgi.com with ESMTP id Nx5tm8erIeRlJbjq for ; Tue, 15 Jun 2010 00:06:18 -0700 (PDT) Received: from basil.firstfloor.org (p5B3CB6AF.dip0.t-ipconnect.de [91.60.182.175]) by one.firstfloor.org (Postfix) with ESMTP id 0675C1A980C3; Tue, 15 Jun 2010 09:02:46 +0200 (CEST) Received: by basil.firstfloor.org (Postfix, from userid 1000) id 43AF7B1A2B; Tue, 15 Jun 2010 09:02:45 +0200 (CEST) Date: Tue, 15 Jun 2010 09:02:45 +0200 From: Andi Kleen To: Dave Chinner Cc: Andi Kleen , xfs@oss.sgi.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org X-ASG-Orig-Subj: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Subject: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Message-ID: <20100615070244.GD6727@basil.fritz.box> References: <20100610110.764742110@firstfloor.org> <20100610111052.3DDC5B1A2B@basil.firstfloor.org> <20100614042700.GC6590@dastard> <20100614074309.GA17092@basil.fritz.box> <20100614133755.GE6590@dastard> <20100614143720.GI17092@basil.fritz.box> <20100614222458.GF6590@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100614222458.GF6590@dastard> User-Agent: Mutt/1.5.17 (2007-11-01) X-Barracuda-Connect: one.firstfloor.org[213.235.205.2] X-Barracuda-Start-Time: 1276585579 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32563 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean > We find out about corrupted filesystems all the time from users > sending mail to the list. Even if we did panic by default on > corruption events, kerneloops.org is *useless* for reporting them > because finding out about a corruption is only the very first step > of what is usually a long and involved process that requires user > interaction to gather information necessary to find the cause of the > corruption. The idea behind kerneloops.org is normally that any single report can be always a flake (broken memory, hardware, flipped bit whatever). An error becomes important and interesting when there are multiple occurrences of it in the field. > > Besides, if we _really_ want the machine to panic on corruption, BUG_ON is not panic normally. > then we configure the machine specifically for it via setting the > relevant corruption type bit in /proc/sys/fs/xfs/panic_mask. This is > generally only used when a developer asks a user to set it to get > kernel crash dumps triggered when a corruption event occurs so we > can do remote, offline analysis of the failure. Especially when you're talking about desktop class systems without ECC memory that will mean you'll spend at least some time on errors which are simply bit flips. > > That's standard Linux kernel development > > practice. Maybe XFS should catch up on that. > > I find this really amusing because linux filesystems have, over the This has really nothing to do with file systems, it's general practice for everything (well except XFS) > last few years, implemented a simpler version of XFS's way of > dealing with corruption events(*). Perhaps you should catch up > with the state of the art before throwing rocks, Andi.... I suspect you miss quite a lot of valuable information from your user base by not supporting kerneloops.org. On the other hand it would likely also save you from spending time on flakes. That said you don't need BUG_ON to support it (WARN etc. work too), it's just the easiest way. -Andi -- ak@linux.intel.com -- Speaking for myself only. From andi@firstfloor.org Tue Jun 15 02:22:18 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5F7MH2Q077563 for ; Tue, 15 Jun 2010 02:22:18 -0500 X-ASG-Debug-ID: 1276586905-586e00000000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from one.firstfloor.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 2A81FAE9D77 for ; Tue, 15 Jun 2010 00:28:25 -0700 (PDT) Received: from one.firstfloor.org (one.firstfloor.org [213.235.205.2]) by cuda.sgi.com with ESMTP id Ow6BoKxkswLw39mi for ; Tue, 15 Jun 2010 00:28:25 -0700 (PDT) Received: from basil.firstfloor.org (p5B3CB6AF.dip0.t-ipconnect.de [91.60.182.175]) by one.firstfloor.org (Postfix) with ESMTP id 9385A1A980C3; Tue, 15 Jun 2010 09:24:52 +0200 (CEST) Received: by basil.firstfloor.org (Postfix, from userid 1000) id 11093B1A2B; Tue, 15 Jun 2010 09:24:52 +0200 (CEST) Date: Tue, 15 Jun 2010 09:24:52 +0200 From: Andi Kleen To: Dave Chinner Cc: Andi Kleen , Andi Kleen , Christoph Hellwig , dgc@fromorbit.com, xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 Subject: Re: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 Message-ID: <20100615072452.GE6727@basil.fritz.box> References: <20100614081356.GA27499@basil.fritz.box> <20100614083021.GA29354@lst.de> <4C15EF75.5080909@linux.intel.com> <20100614124804.GA8547@lst.de> <20100614133958.GH17092@basil.fritz.box> <20100614163122.GB369@basil.fritz.box> <20100615005442.GL6590@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100615005442.GL6590@dastard> User-Agent: Mutt/1.5.17 (2007-11-01) X-Barracuda-Connect: one.firstfloor.org[213.235.205.2] X-Barracuda-Start-Time: 1276586906 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32563 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean > I'm still not happy with it. With the BUG_ON? > > We'll commit a modified version of one of your patches into the XFS > tree as you seem unable to accept that changes might be necessary to > get your code to pass review. Sure modify however you like as long as you fix the warnings. Also it was good to have review on the cases it warned about, luckily there were no real bugs found. [BTW I should add there were some more mostly from array overflows. I have not investigated in detail, but I suspect they were harmless] My goal was also mostly to get my build reasonably warning free, but if I can't get this patch in I can also just disable the warning for fs/xfs. -Andi -- ak@linux.intel.com -- Speaking for myself only. From BATV+0e448f5b76c0517233da+2487+infradead.org+hch@bombadil.srs.infradead.org Tue Jun 15 02:38:02 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5F7c0sY078055 for ; Tue, 15 Jun 2010 02:38:02 -0500 X-ASG-Debug-ID: 1276587636-1e7700910000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id A01221B1D357 for ; Tue, 15 Jun 2010 00:40:36 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id Ng0mBuhPQQ1F3J7J for ; Tue, 15 Jun 2010 00:40:36 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OOQl2-0004vw-T0; Tue, 15 Jun 2010 07:40:28 +0000 Date: Tue, 15 Jun 2010 03:40:28 -0400 From: Christoph Hellwig To: Andi Kleen Cc: Dave Chinner , xfs@oss.sgi.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org X-ASG-Orig-Subj: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Subject: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Message-ID: <20100615074028.GA15322@infradead.org> References: <20100610110.764742110@firstfloor.org> <20100610111052.3DDC5B1A2B@basil.firstfloor.org> <20100614042700.GC6590@dastard> <20100614074309.GA17092@basil.fritz.box> <20100614133755.GE6590@dastard> <20100614143720.GI17092@basil.fritz.box> <20100614222458.GF6590@dastard> <20100615070244.GD6727@basil.fritz.box> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100615070244.GD6727@basil.fritz.box> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1276587636 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 15, 2010 at 09:02:45AM +0200, Andi Kleen wrote: > I suspect you miss quite a lot of valuable information from > your user base by not supporting kerneloops.org. On the other > hand it would likely also save you from spending time on > flakes. > > That said you don't need BUG_ON to support it (WARN etc. work > too), it's just the easiest way. Note that a XFS filesystem shutdown already gives a stack trace. But picking up every filesystem shutdown on kerneloops.org seems to be quite a bit too much. It's usually due to IO errors from the underlying device. From andi@firstfloor.org Tue Jun 15 02:44:08 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5F7i8Wq078402 for ; Tue, 15 Jun 2010 02:44:08 -0500 X-ASG-Debug-ID: 1276588215-6069008c0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from one.firstfloor.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 6EF03AEA2F2 for ; Tue, 15 Jun 2010 00:50:15 -0700 (PDT) Received: from one.firstfloor.org (one.firstfloor.org [213.235.205.2]) by cuda.sgi.com with ESMTP id c7HrdpaHg3NLF6V4 for ; Tue, 15 Jun 2010 00:50:15 -0700 (PDT) Received: from basil.firstfloor.org (p5B3CB6AF.dip0.t-ipconnect.de [91.60.182.175]) by one.firstfloor.org (Postfix) with ESMTP id 9AC2D1A980C3; Tue, 15 Jun 2010 09:46:42 +0200 (CEST) Received: by basil.firstfloor.org (Postfix, from userid 1000) id 75E33B1A2B; Tue, 15 Jun 2010 09:46:41 +0200 (CEST) Date: Tue, 15 Jun 2010 09:46:41 +0200 From: Andi Kleen To: Christoph Hellwig Cc: Andi Kleen , Dave Chinner , xfs@oss.sgi.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org X-ASG-Orig-Subj: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Subject: Re: [PATCH] [16/23] XFS: Fix gcc 4.6 set but not read and unused statement warnings Message-ID: <20100615074641.GF6727@basil.fritz.box> References: <20100610110.764742110@firstfloor.org> <20100610111052.3DDC5B1A2B@basil.firstfloor.org> <20100614042700.GC6590@dastard> <20100614074309.GA17092@basil.fritz.box> <20100614133755.GE6590@dastard> <20100614143720.GI17092@basil.fritz.box> <20100614222458.GF6590@dastard> <20100615070244.GD6727@basil.fritz.box> <20100615074028.GA15322@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100615074028.GA15322@infradead.org> User-Agent: Mutt/1.5.17 (2007-11-01) X-Barracuda-Connect: one.firstfloor.org[213.235.205.2] X-Barracuda-Start-Time: 1276588216 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32565 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 15, 2010 at 03:40:28AM -0400, Christoph Hellwig wrote: > On Tue, Jun 15, 2010 at 09:02:45AM +0200, Andi Kleen wrote: > > I suspect you miss quite a lot of valuable information from > > your user base by not supporting kerneloops.org. On the other > > hand it would likely also save you from spending time on > > flakes. > > > > That said you don't need BUG_ON to support it (WARN etc. work > > too), it's just the easiest way. > > Note that a XFS filesystem shutdown already gives a stack trace. > But picking up every filesystem shutdown on kerneloops.org seems > to be quite a bit too much. It's usually due to IO errors from > the underlying device. Yes, but known race check asserts should be probably there, right? Maybe you need a special kind of ASSERT (or shutdown) for those? -Andi -- ak@linux.intel.com -- Speaking for myself only. From jack@suse.cz Tue Jun 15 04:52:50 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,J_CHICKENPOX_62, J_CHICKENPOX_65 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5F9qodE082274 for ; Tue, 15 Jun 2010 04:52:50 -0500 X-ASG-Debug-ID: 1276595726-62ae027d0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mx1.suse.de (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id EEF5E3C8B6F for ; Tue, 15 Jun 2010 02:55:26 -0700 (PDT) Received: from mx1.suse.de (cantor.suse.de [195.135.220.2]) by cuda.sgi.com with ESMTP id RGM0F4W3JHn3MN5B for ; Tue, 15 Jun 2010 02:55:26 -0700 (PDT) X-ASG-Whitelist: Barracuda Reputation Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.221.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.suse.de (Postfix) with ESMTP id 784A95362F; Tue, 15 Jun 2010 11:55:25 +0200 (CEST) Received: by quack.suse.cz (Postfix, from userid 10005) id 5EE282B1BD1; Tue, 15 Jun 2010 11:55:05 +0200 (CEST) Date: Tue, 15 Jun 2010 11:55:05 +0200 From: Jan Kara To: Eric Sandeen Cc: Jan Kara , xfs@oss.sgi.com, hch@infradead.org X-ASG-Orig-Subj: Re: [PATCH 4/8] Add test of quota accounting using fsx Subject: Re: [PATCH 4/8] Add test of quota accounting using fsx Message-ID: <20100615095505.GB3347@quack.suse.cz> References: <1274710459-11446-1-git-send-email-jack@suse.cz> <1274710459-11446-5-git-send-email-jack@suse.cz> <4C0FD43D.3040803@sandeen.net> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="yEPQxsgoJgBvi8ip" Content-Disposition: inline In-Reply-To: <4C0FD43D.3040803@sandeen.net> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: cantor.suse.de[195.135.220.2] X-Barracuda-Start-Time: 1276595726 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --yEPQxsgoJgBvi8ip Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Wed 09-06-10 12:49:49, Eric Sandeen wrote: > Jan Kara wrote: > > Run fsx (and also several fsx threads in parallel) and verify that > > quota accounting is correct after they finish. > > Jan, I'm having trouble with this one on XFS for some reason, with our > RHEL6 kernel and quota-3.17... OK, attached is an improvement to the XFSQA tests after which all quota tests pass for XFS just fine. The second patch is just minor general improvement of _require_scratch macro. Could they be added to XFSQA repository? Thanks. Honza -- Jan Kara SUSE Labs, CR --yEPQxsgoJgBvi8ip Content-Type: text/x-patch; charset=us-ascii Content-Disposition: attachment; filename="0001-Provide-generic-function-for-checking-quota-usage.patch" >From 5f184d21e781f1b14365c356e6c80030964aaaf7 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Thu, 10 Jun 2010 12:49:11 +0200 Subject: [PATCH 1/2] Provide generic function for checking quota usage Provide generic function _check_quota_usage for checking whether quota usage matches the space used and use it in proper tests. Signed-off-by: Jan Kara --- 231 | 18 +++--------------- 231.out | 6 ++++++ 232 | 14 +------------- 232.out | 2 ++ 233 | 14 +------------- 233.out | 2 ++ common.quota | 36 ++++++++++++++++++++++++++++++++++++ 7 files changed, 51 insertions(+), 41 deletions(-) diff --git a/231 b/231 index ebbe11e..e499c9a 100755 --- a/231 +++ b/231 @@ -49,18 +49,6 @@ s,$SCRATCH_DEV,[SCR_DEV],; print;" } -check_usage() -{ - quotaon -f -u -g $SCRATCH_MNT 2>/dev/null - repquota -u -g $SCRATCH_MNT | grep -v "^root" | filter_scratch \ - >$tmp.orig - quotacheck -u -g $SCRATCH_MNT 2>/dev/null - repquota -u -g $SCRATCH_MNT | grep -v "^root" | filter_scratch \ - >$tmp.checked - quotaon -u -g $SCRATCH_MNT 2>/dev/null - diff $tmp.orig $tmp.checked -} - _fsx() { tasks=$1 @@ -104,7 +92,7 @@ if ! _fsx 1; then exit fi -if ! check_usage; then +if ! _check_quota_usage; then umount $SCRATCH_DEV 2>/dev/null status=1 exit @@ -116,7 +104,7 @@ if ! _fsx 4; then exit fi -if ! check_usage; then +if ! _check_quota_usage; then umount $SCRATCH_DEV 2>/dev/null status=1 exit @@ -130,7 +118,7 @@ if ! _fsx 1; then exit fi -if ! check_usage; then +if ! _check_quota_usage; then umount $SCRATCH_DEV 2>/dev/null status=1 exit diff --git a/231.out b/231.out index 2f2d072..ef264a9 100644 --- a/231.out +++ b/231.out @@ -1,10 +1,16 @@ QA output created by 231 === FSX Standard Mode, Memory Mapping, 1 Tasks === All operations completed A-OK! +Comparing user usage +Comparing group usage === FSX Standard Mode, Memory Mapping, 4 Tasks === All operations completed A-OK! All operations completed A-OK! All operations completed A-OK! All operations completed A-OK! +Comparing user usage +Comparing group usage === FSX Standard Mode, Memory Mapping, 1 Tasks === All operations completed A-OK! +Comparing user usage +Comparing group usage diff --git a/232 b/232 index cf4d25a..d5f99bd 100755 --- a/232 +++ b/232 @@ -46,18 +46,6 @@ s,$SCRATCH_DEV,[SCR_DEV],; print;" } -check_usage() -{ - quotaon -f -u -g $SCRATCH_MNT 2>/dev/null - repquota -u -g -n $SCRATCH_MNT | grep -v "^#0" | filter_scratch | - sort >$tmp.orig - quotacheck -u -g $SCRATCH_MNT 2>/dev/null - repquota -u -g -n $SCRATCH_MNT | grep -v "^#0" | filter_scratch | - sort >$tmp.checked - quotaon -u -g $SCRATCH_MNT 2>/dev/null - diff $tmp.orig $tmp.checked -} - _filter_num() { tee -a $here/$seq.full |\ @@ -104,7 +92,7 @@ if ! _fsstress; then exit fi -if ! check_usage; then +if ! _check_quota_usage; then umount $SCRATCH_DEV 2>/dev/null status=1 exit diff --git a/232.out b/232.out index 744192e..ef82a89 100644 --- a/232.out +++ b/232.out @@ -4,3 +4,5 @@ Testing fsstress fsstress -n 2000 -d outdir -p 7 seed = S +Comparing user usage +Comparing group usage diff --git a/233 b/233 index b967e0d..5060931 100755 --- a/233 +++ b/233 @@ -50,18 +50,6 @@ s,$SCRATCH_DEV,[SCR_DEV],; print;" } -check_usage() -{ - quotaon -f -u -g $SCRATCH_MNT 2>/dev/null - repquota -u -g -n $SCRATCH_MNT | grep -v "^#0" | filter_scratch | - sort >$tmp.orig - quotacheck -u -g $SCRATCH_MNT 2>/dev/null - repquota -u -g -n $SCRATCH_MNT | grep -v "^#0" | filter_scratch | - sort >$tmp.checked - quotaon -u -g $SCRATCH_MNT 2>/dev/null - diff $tmp.orig $tmp.checked -} - _filter_num() { tee -a $here/$seq.full |\ @@ -113,7 +101,7 @@ if ! _fsstress; then exit fi -if ! check_usage; then +if ! _check_quota_usage; then umount $SCRATCH_DEV 2>/dev/null status=1 exit diff --git a/233.out b/233.out index 208910d..fa36ca3 100644 --- a/233.out +++ b/233.out @@ -4,3 +4,5 @@ Testing fsstress fsstress -z -f rmdir=20 -f link=10 -f creat=10 -f mkdir=10 -f unlink=20 -f symlink=10 -f rename=10 -f fsync=2 -f write=15 -f dwrite=15 -n 5000 -d outdir -p 7 seed = S +Comparing user usage +Comparing group usage diff --git a/common.quota b/common.quota index d32e285..655e34d 100644 --- a/common.quota +++ b/common.quota @@ -211,5 +211,41 @@ _qmount_option() echo "MOUNT_OPTIONS = $MOUNT_OPTIONS" >>$seq.full } +_check_quota_usage() +{ + # Sync to get delalloc to disk + sync + VFS_QUOTA=0 + if [ $FSTYP = "ext2" -o $FSTYP = "ext3" -o $FSTYP = "ext4" -o $FSTYP = "reiserfs" ]; then + VFS_QUOTA=1 + quotaon -f -u -g $SCRATCH_MNT 2>/dev/null + fi + repquota -u -n $SCRATCH_MNT | grep -v "^#0" | filter_scratch | + sort >$tmp.user.orig + repquota -g -n $SCRATCH_MNT | grep -v "^#0" | filter_scratch | + sort >$tmp.group.orig + if [ $VFS_QUOTA -eq 1 ]; then + quotacheck -u -g $SCRATCH_MNT 2>/dev/null + else + # use XFS method to force quotacheck + mount -o remount,noquota $SCRATCH_DEV + mount -o remount,usrquota,grpquota $SCRATCH_DEV + fi + repquota -u -n $SCRATCH_MNT | grep -v "^#0" | filter_scratch | + sort >$tmp.user.checked + repquota -g -n $SCRATCH_MNT | grep -v "^#0" | filter_scratch | + sort >$tmp.group.checked + if [ $VFS_QUOTA -eq 1 ]; then + quotaon -u -g $SCRATCH_MNT 2>/dev/null + fi + { + echo "Comparing user usage" + diff $tmp.user.orig $tmp.user.checked + } && { + echo "Comparing group usage" + diff $tmp.group.orig $tmp.group.checked + } +} + # make sure this script returns success /bin/true -- 1.6.4.2 --yEPQxsgoJgBvi8ip Content-Type: text/x-patch; charset=us-ascii Content-Disposition: attachment; filename="0002-Add-test-for-correct-SCRATCH_MNT-into-_require_scrat.patch" >From d72c11b63aa22c920b460a71d4384c2f39be6513 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 15 Jun 2010 10:54:12 +0200 Subject: [PATCH 2/2] Add test for correct $SCRATCH_MNT into _require_scratch --- common.rc | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/common.rc b/common.rc index 6bf1e12..72997f9 100644 --- a/common.rc +++ b/common.rc @@ -703,6 +703,10 @@ _require_scratch() then _notrun "this test requires a valid \$SCRATCH_DEV" fi + if [ ! -d "$SCRATCH_MNT" ] + then + _notrun "this test requires a valid \$SCRATCH_MNT" + fi ;; esac -- 1.6.4.2 --yEPQxsgoJgBvi8ip-- From BATV+0e448f5b76c0517233da+2487+infradead.org+hch@bombadil.srs.infradead.org Tue Jun 15 06:18:15 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,J_CHICKENPOX_62, J_CHICKENPOX_92 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5FBIEvG084738 for ; Tue, 15 Jun 2010 06:18:15 -0500 X-ASG-Debug-ID: 1276600851-667500e40000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 8D2C01BDB75A for ; Tue, 15 Jun 2010 04:20:51 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id 8XrmK0NfDbgZMi5B for ; Tue, 15 Jun 2010 04:20:51 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OOUCJ-0002m3-34; Tue, 15 Jun 2010 11:20:51 +0000 Date: Tue, 15 Jun 2010 07:20:51 -0400 From: Christoph Hellwig To: Dave Chinner Cc: Christoph Hellwig , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfs: avoid synchronous transaction in xfs_fs_write_inode Subject: Re: [PATCH] xfs: avoid synchronous transaction in xfs_fs_write_inode Message-ID: <20100615112051.GA25064@infradead.org> References: <20100608195905.GA577@infradead.org> <20100609072911.GI7869@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100609072911.GI7869@dastard> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1276600851 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed, Jun 09, 2010 at 05:29:11PM +1000, Dave Chinner wrote: > All great - I attempted this myself - but it breaks bulkstat. See > xfstest 183: I can't reproduce the failure. And then I don't think we should prioritize bulkstate over metadata performance. The only major users of bulkstat on XFS in the mainline kernel is xfsdump, and metadata performance during normal loads is a lot more important. And the difference when using LVM/MD will be even larger with this as barriers are a lot more expensive there. What do you think about adding something like the patch below which always makes bulkstat always use the iget version which doesn't show this sort of problems. --- From: Christoph Hellwig Subject: xfs: always use iget in bulkstat The non-coherent bulkstat versionsthat look directly at the inode buffers causes various problems with performance optimizations that make increased use of just logging inodes. This patch makes bulkstat always use iget, which should be fast enough for normal use with the radix-tree based inode cache introduced a while ago. Signed-off-by: Christoph Hellwig --- linux-2.6/xfs_ioctl.c | 7 - linux-2.6/xfs_ioctl32.c | 12 -- quota/xfs_qm.c | 11 - quota/xfs_qm_syscalls.c | 16 +- xfs_itable.c | 281 ++++++------------------------------------------ xfs_itable.h | 14 -- 6 files changed, 59 insertions(+), 282 deletions(-) Index: xfs/fs/xfs/linux-2.6/xfs_ioctl.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_ioctl.c 2010-06-09 14:41:00.798002937 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_ioctl.c 2010-06-09 15:29:03.480005242 +0200 @@ -670,10 +670,9 @@ xfs_ioc_bulkstat( error = xfs_bulkstat_single(mp, &inlast, bulkreq.ubuffer, &done); else /* XFS_IOC_FSBULKSTAT */ - error = xfs_bulkstat(mp, &inlast, &count, - (bulkstat_one_pf)xfs_bulkstat_one, NULL, - sizeof(xfs_bstat_t), bulkreq.ubuffer, - BULKSTAT_FG_QUICK, &done); + error = xfs_bulkstat(mp, &inlast, &count, xfs_bulkstat_one, + sizeof(xfs_bstat_t), bulkreq.ubuffer, + &done); if (error) return -error; Index: xfs/fs/xfs/linux-2.6/xfs_ioctl32.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_ioctl32.c 2010-06-09 14:41:00.806011109 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_ioctl32.c 2010-06-09 15:29:03.480005242 +0200 @@ -233,15 +233,13 @@ xfs_bulkstat_one_compat( xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* buffer to place output in */ int ubsize, /* size of buffer */ - void *private_data, /* my private data */ xfs_daddr_t bno, /* starting bno of inode cluster */ int *ubused, /* bytes used by me */ - void *dibuff, /* on-disk inode buffer */ int *stat) /* BULKSTAT_RV_... */ { return xfs_bulkstat_one_int(mp, ino, buffer, ubsize, xfs_bulkstat_one_fmt_compat, bno, - ubused, dibuff, stat); + ubused, stat); } /* copied from xfs_ioctl.c */ @@ -294,13 +292,11 @@ xfs_compat_ioc_bulkstat( int res; error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer, - sizeof(compat_xfs_bstat_t), - NULL, 0, NULL, NULL, &res); + sizeof(compat_xfs_bstat_t), 0, NULL, &res); } else if (cmd == XFS_IOC_FSBULKSTAT_32) { error = xfs_bulkstat(mp, &inlast, &count, - xfs_bulkstat_one_compat, NULL, - sizeof(compat_xfs_bstat_t), bulkreq.ubuffer, - BULKSTAT_FG_QUICK, &done); + xfs_bulkstat_one_compat, sizeof(compat_xfs_bstat_t), + bulkreq.ubuffer, &done); } else error = XFS_ERROR(EINVAL); if (error) Index: xfs/fs/xfs/quota/xfs_qm.c =================================================================== --- xfs.orig/fs/xfs/quota/xfs_qm.c 2010-06-09 14:41:00.816003775 +0200 +++ xfs/fs/xfs/quota/xfs_qm.c 2010-06-09 15:29:03.487003915 +0200 @@ -1625,10 +1625,8 @@ xfs_qm_dqusage_adjust( xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* not used */ int ubsize, /* not used */ - void *private_data, /* not used */ xfs_daddr_t bno, /* starting block of inode cluster */ int *ubused, /* not used */ - void *dip, /* on-disk inode pointer (not used) */ int *res) /* result code value */ { xfs_inode_t *ip; @@ -1789,12 +1787,13 @@ xfs_qm_quotacheck( * Iterate thru all the inodes in the file system, * adjusting the corresponding dquot counters in core. */ - if ((error = xfs_bulkstat(mp, &lastino, &count, - xfs_qm_dqusage_adjust, NULL, - structsz, NULL, BULKSTAT_FG_IGET, &done))) + error = xfs_bulkstat(mp, &lastino, &count, + xfs_qm_dqusage_adjust, + structsz, NULL, &done); + if (error) break; - } while (! done); + } while (!done); /* * We've made all the changes that we need to make incore. Index: xfs/fs/xfs/quota/xfs_qm_syscalls.c =================================================================== --- xfs.orig/fs/xfs/quota/xfs_qm_syscalls.c 2010-06-09 14:41:00.829004055 +0200 +++ xfs/fs/xfs/quota/xfs_qm_syscalls.c 2010-06-09 15:29:03.491003845 +0200 @@ -1095,10 +1095,8 @@ xfs_qm_internalqcheck_adjust( xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* not used */ int ubsize, /* not used */ - void *private_data, /* not used */ xfs_daddr_t bno, /* starting block of inode cluster */ int *ubused, /* not used */ - void *dip, /* not used */ int *res) /* bulkstat result code */ { xfs_inode_t *ip; @@ -1191,15 +1189,15 @@ xfs_qm_internalqcheck( * Iterate thru all the inodes in the file system, * adjusting the corresponding dquot counters */ - if ((error = xfs_bulkstat(mp, &lastino, &count, - xfs_qm_internalqcheck_adjust, NULL, - 0, NULL, BULKSTAT_FG_IGET, &done))) { + error = xfs_bulkstat(mp, &lastino, &count, + xfs_qm_internalqcheck_adjust, + 0, NULL, &done); + if (error) { + cmn_err(CE_DEBUG, "Bulkstat returned error 0x%x", error); break; } - } while (! done); - if (error) { - cmn_err(CE_DEBUG, "Bulkstat returned error 0x%x", error); - } + } while (!done); + cmn_err(CE_DEBUG, "Checking results against system dquots"); for (i = 0; i < qmtest_hashmask; i++) { xfs_dqtest_t *d, *n; Index: xfs/fs/xfs/xfs_itable.c =================================================================== --- xfs.orig/fs/xfs/xfs_itable.c 2010-06-09 14:41:00.784003985 +0200 +++ xfs/fs/xfs/xfs_itable.c 2010-06-09 15:29:03.494004753 +0200 @@ -45,24 +45,41 @@ xfs_internal_inum( (ino == mp->m_sb.sb_uquotino || ino == mp->m_sb.sb_gquotino))); } -STATIC int -xfs_bulkstat_one_iget( - xfs_mount_t *mp, /* mount point for filesystem */ - xfs_ino_t ino, /* inode number to get data for */ - xfs_daddr_t bno, /* starting bno of inode cluster */ - xfs_bstat_t *buf, /* return buffer */ - int *stat) /* BULKSTAT_RV_... */ +/* + * Return stat information for one inode. + * Return 0 if ok, else errno. + */ +int +xfs_bulkstat_one_int( + struct xfs_mount *mp, /* mount point for filesystem */ + xfs_ino_t ino, /* inode to get data for */ + void __user *buffer, /* buffer to place output in */ + int ubsize, /* size of buffer */ + bulkstat_one_fmt_pf formatter, /* formatter, copy to user */ + xfs_daddr_t bno, /* starting bno of cluster */ + int *ubused, /* bytes used by me */ + int *stat) /* BULKSTAT_RV_... */ { - xfs_icdinode_t *dic; /* dinode core info pointer */ - xfs_inode_t *ip; /* incore inode pointer */ - struct inode *inode; - int error; + struct xfs_icdinode *dic; /* dinode core info pointer */ + struct xfs_inode *ip; /* incore inode pointer */ + struct inode *inode; + struct xfs_bstat *buf; /* return buffer */ + int error = 0; /* error value */ + + *stat = BULKSTAT_RV_NOTHING; + + if (!buffer || xfs_internal_inum(mp, ino)) + return XFS_ERROR(EINVAL); + + buf = kmem_alloc(sizeof(*buf), KM_SLEEP | KM_MAYFAIL); + if (!buf) + return XFS_ERROR(ENOMEM); error = xfs_iget(mp, NULL, ino, XFS_IGET_BULKSTAT, XFS_ILOCK_SHARED, &ip, bno); if (error) { *stat = BULKSTAT_RV_NOTHING; - return error; + goto out_free; } ASSERT(ip != NULL); @@ -123,77 +140,16 @@ xfs_bulkstat_one_iget( buf->bs_blocks = dic->di_nblocks + ip->i_delayed_blks; break; } - xfs_iput(ip, XFS_ILOCK_SHARED); - return error; -} -STATIC void -xfs_bulkstat_one_dinode( - xfs_mount_t *mp, /* mount point for filesystem */ - xfs_ino_t ino, /* inode number to get data for */ - xfs_dinode_t *dic, /* dinode inode pointer */ - xfs_bstat_t *buf) /* return buffer */ -{ - /* - * The inode format changed when we moved the link count and - * made it 32 bits long. If this is an old format inode, - * convert it in memory to look like a new one. If it gets - * flushed to disk we will convert back before flushing or - * logging it. We zero out the new projid field and the old link - * count field. We'll handle clearing the pad field (the remains - * of the old uuid field) when we actually convert the inode to - * the new format. We don't change the version number so that we - * can distinguish this from a real new format inode. - */ - if (dic->di_version == 1) { - buf->bs_nlink = be16_to_cpu(dic->di_onlink); - buf->bs_projid = 0; - } else { - buf->bs_nlink = be32_to_cpu(dic->di_nlink); - buf->bs_projid = be16_to_cpu(dic->di_projid); - } + error = formatter(buffer, ubsize, ubused, buf); - buf->bs_ino = ino; - buf->bs_mode = be16_to_cpu(dic->di_mode); - buf->bs_uid = be32_to_cpu(dic->di_uid); - buf->bs_gid = be32_to_cpu(dic->di_gid); - buf->bs_size = be64_to_cpu(dic->di_size); - buf->bs_atime.tv_sec = be32_to_cpu(dic->di_atime.t_sec); - buf->bs_atime.tv_nsec = be32_to_cpu(dic->di_atime.t_nsec); - buf->bs_mtime.tv_sec = be32_to_cpu(dic->di_mtime.t_sec); - buf->bs_mtime.tv_nsec = be32_to_cpu(dic->di_mtime.t_nsec); - buf->bs_ctime.tv_sec = be32_to_cpu(dic->di_ctime.t_sec); - buf->bs_ctime.tv_nsec = be32_to_cpu(dic->di_ctime.t_nsec); - buf->bs_xflags = xfs_dic2xflags(dic); - buf->bs_extsize = be32_to_cpu(dic->di_extsize) << mp->m_sb.sb_blocklog; - buf->bs_extents = be32_to_cpu(dic->di_nextents); - buf->bs_gen = be32_to_cpu(dic->di_gen); - memset(buf->bs_pad, 0, sizeof(buf->bs_pad)); - buf->bs_dmevmask = be32_to_cpu(dic->di_dmevmask); - buf->bs_dmstate = be16_to_cpu(dic->di_dmstate); - buf->bs_aextents = be16_to_cpu(dic->di_anextents); - buf->bs_forkoff = XFS_DFORK_BOFF(dic); + if (!error) + *stat = BULKSTAT_RV_DIDONE; - switch (dic->di_format) { - case XFS_DINODE_FMT_DEV: - buf->bs_rdev = xfs_dinode_get_rdev(dic); - buf->bs_blksize = BLKDEV_IOSIZE; - buf->bs_blocks = 0; - break; - case XFS_DINODE_FMT_LOCAL: - case XFS_DINODE_FMT_UUID: - buf->bs_rdev = 0; - buf->bs_blksize = mp->m_sb.sb_blocksize; - buf->bs_blocks = 0; - break; - case XFS_DINODE_FMT_EXTENTS: - case XFS_DINODE_FMT_BTREE: - buf->bs_rdev = 0; - buf->bs_blksize = mp->m_sb.sb_blocksize; - buf->bs_blocks = be64_to_cpu(dic->di_nblocks); - break; - } + out_free: + kmem_free(buf); + return error; } /* Return 0 on success or positive error */ @@ -213,118 +169,19 @@ xfs_bulkstat_one_fmt( return 0; } -/* - * Return stat information for one inode. - * Return 0 if ok, else errno. - */ -int /* error status */ -xfs_bulkstat_one_int( - xfs_mount_t *mp, /* mount point for filesystem */ - xfs_ino_t ino, /* inode number to get data for */ - void __user *buffer, /* buffer to place output in */ - int ubsize, /* size of buffer */ - bulkstat_one_fmt_pf formatter, /* formatter, copy to user */ - xfs_daddr_t bno, /* starting bno of inode cluster */ - int *ubused, /* bytes used by me */ - void *dibuff, /* on-disk inode buffer */ - int *stat) /* BULKSTAT_RV_... */ -{ - xfs_bstat_t *buf; /* return buffer */ - int error = 0; /* error value */ - xfs_dinode_t *dip; /* dinode inode pointer */ - - dip = (xfs_dinode_t *)dibuff; - *stat = BULKSTAT_RV_NOTHING; - - if (!buffer || xfs_internal_inum(mp, ino)) - return XFS_ERROR(EINVAL); - - buf = kmem_alloc(sizeof(*buf), KM_SLEEP); - - if (dip == NULL) { - /* We're not being passed a pointer to a dinode. This happens - * if BULKSTAT_FG_IGET is selected. Do the iget. - */ - error = xfs_bulkstat_one_iget(mp, ino, bno, buf, stat); - if (error) - goto out_free; - } else { - xfs_bulkstat_one_dinode(mp, ino, dip, buf); - } - - error = formatter(buffer, ubsize, ubused, buf); - if (error) - goto out_free; - - *stat = BULKSTAT_RV_DIDONE; - - out_free: - kmem_free(buf); - return error; -} - int xfs_bulkstat_one( xfs_mount_t *mp, /* mount point for filesystem */ xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* buffer to place output in */ int ubsize, /* size of buffer */ - void *private_data, /* my private data */ xfs_daddr_t bno, /* starting bno of inode cluster */ int *ubused, /* bytes used by me */ - void *dibuff, /* on-disk inode buffer */ int *stat) /* BULKSTAT_RV_... */ { return xfs_bulkstat_one_int(mp, ino, buffer, ubsize, xfs_bulkstat_one_fmt, bno, - ubused, dibuff, stat); -} - -/* - * Test to see whether we can use the ondisk inode directly, based - * on the given bulkstat flags, filling in dipp accordingly. - * Returns zero if the inode is dodgey. - */ -STATIC int -xfs_bulkstat_use_dinode( - xfs_mount_t *mp, - int flags, - xfs_buf_t *bp, - int clustidx, - xfs_dinode_t **dipp) -{ - xfs_dinode_t *dip; - unsigned int aformat; - - *dipp = NULL; - if (!bp || (flags & BULKSTAT_FG_IGET)) - return 1; - dip = (xfs_dinode_t *) - xfs_buf_offset(bp, clustidx << mp->m_sb.sb_inodelog); - /* - * Check the buffer containing the on-disk inode for di_mode == 0. - * This is to prevent xfs_bulkstat from picking up just reclaimed - * inodes that have their in-core state initialized but not flushed - * to disk yet. This is a temporary hack that would require a proper - * fix in the future. - */ - if (be16_to_cpu(dip->di_magic) != XFS_DINODE_MAGIC || - !XFS_DINODE_GOOD_VERSION(dip->di_version) || - !dip->di_mode) - return 0; - if (flags & BULKSTAT_FG_QUICK) { - *dipp = dip; - return 1; - } - /* BULKSTAT_FG_INLINE: if attr fork is local, or not there, use it */ - aformat = dip->di_aformat; - if ((XFS_DFORK_Q(dip) == 0) || - (aformat == XFS_DINODE_FMT_LOCAL) || - (aformat == XFS_DINODE_FMT_EXTENTS && !dip->di_anextents)) { - *dipp = dip; - return 1; - } - return 1; + ubused, stat); } #define XFS_BULKSTAT_UBLEFT(ubleft) ((ubleft) >= statstruct_size) @@ -338,10 +195,8 @@ xfs_bulkstat( xfs_ino_t *lastinop, /* last inode returned */ int *ubcountp, /* size of buffer/count returned */ bulkstat_one_pf formatter, /* func that'd fill a single buf */ - void *private_data,/* private data for formatter */ size_t statstruct_size, /* sizeof struct filling */ char __user *ubuffer, /* buffer with inode stats */ - int flags, /* defined in xfs_itable.h */ int *done) /* 1 if there are more stats to get */ { xfs_agblock_t agbno=0;/* allocation group block number */ @@ -376,14 +231,12 @@ xfs_bulkstat( int ubelem; /* spaces used in user's buffer */ int ubused; /* bytes used by formatter */ xfs_buf_t *bp; /* ptr to on-disk inode cluster buf */ - xfs_dinode_t *dip; /* ptr into bp for specific inode */ /* * Get the last inode value, see if there's nothing to do. */ ino = (xfs_ino_t)*lastinop; lastino = ino; - dip = NULL; agno = XFS_INO_TO_AGNO(mp, ino); agino = XFS_INO_TO_AGINO(mp, ino); if (agno >= mp->m_sb.sb_agcount || @@ -608,37 +461,6 @@ xfs_bulkstat( irbp->ir_startino) + ((chunkidx & nimask) >> mp->m_sb.sb_inopblog); - - if (flags & (BULKSTAT_FG_QUICK | - BULKSTAT_FG_INLINE)) { - int offset; - - ino = XFS_AGINO_TO_INO(mp, agno, - agino); - bno = XFS_AGB_TO_DADDR(mp, agno, - agbno); - - /* - * Get the inode cluster buffer - */ - if (bp) - xfs_buf_relse(bp); - - error = xfs_inotobp(mp, NULL, ino, &dip, - &bp, &offset, - XFS_IGET_BULKSTAT); - - if (!error) - clustidx = offset / mp->m_sb.sb_inodesize; - if (XFS_TEST_ERROR(error != 0, - mp, XFS_ERRTAG_BULKSTAT_READ_CHUNK, - XFS_RANDOM_BULKSTAT_READ_CHUNK)) { - bp = NULL; - ubleft = 0; - rval = error; - break; - } - } } ino = XFS_AGINO_TO_INO(mp, agno, agino); bno = XFS_AGB_TO_DADDR(mp, agno, agbno); @@ -654,35 +476,13 @@ xfs_bulkstat( * when the chunk is used up. */ irbp->ir_freecount++; - if (!xfs_bulkstat_use_dinode(mp, flags, bp, - clustidx, &dip)) { - lastino = ino; - continue; - } - /* - * If we need to do an iget, cannot hold bp. - * Drop it, until starting the next cluster. - */ - if ((flags & BULKSTAT_FG_INLINE) && !dip) { - if (bp) - xfs_buf_relse(bp); - bp = NULL; - } /* * Get the inode and fill in a single buffer. - * BULKSTAT_FG_QUICK uses dip to fill it in. - * BULKSTAT_FG_IGET uses igets. - * BULKSTAT_FG_INLINE uses dip if we have an - * inline attr fork, else igets. - * See: xfs_bulkstat_one & xfs_dm_bulkstat_one. - * This is also used to count inodes/blks, etc - * in xfs_qm_quotacheck. */ ubused = statstruct_size; - error = formatter(mp, ino, ubufp, - ubleft, private_data, - bno, &ubused, dip, &fmterror); + error = formatter(mp, ino, ubufp, ubleft, bno, + &ubused, &fmterror); if (fmterror == BULKSTAT_RV_NOTHING) { if (error && error != ENOENT && error != EINVAL) { @@ -775,7 +575,7 @@ xfs_bulkstat_single( ino = (xfs_ino_t)*lastinop; error = xfs_bulkstat_one(mp, ino, buffer, sizeof(xfs_bstat_t), - NULL, 0, NULL, NULL, &res); + 0, NULL, &res); if (error) { /* * Special case way failed, do it the "long" way @@ -784,8 +584,7 @@ xfs_bulkstat_single( (*lastinop)--; count = 1; if (xfs_bulkstat(mp, lastinop, &count, xfs_bulkstat_one, - NULL, sizeof(xfs_bstat_t), buffer, - BULKSTAT_FG_IGET, done)) + sizeof(xfs_bstat_t), buffer, done)) return error; if (count == 0 || (xfs_ino_t)*lastinop != ino) return error == EFSCORRUPTED ? Index: xfs/fs/xfs/xfs_itable.h =================================================================== --- xfs.orig/fs/xfs/xfs_itable.h 2010-06-09 14:41:00.791011668 +0200 +++ xfs/fs/xfs/xfs_itable.h 2010-06-09 15:29:03.497004334 +0200 @@ -27,10 +27,8 @@ typedef int (*bulkstat_one_pf)(struct xf xfs_ino_t ino, void __user *buffer, int ubsize, - void *private_data, xfs_daddr_t bno, int *ubused, - void *dip, int *stat); /* @@ -41,13 +39,6 @@ typedef int (*bulkstat_one_pf)(struct xf #define BULKSTAT_RV_GIVEUP 2 /* - * Values for bulkstat flag argument. - */ -#define BULKSTAT_FG_IGET 0x1 /* Go through the buffer cache */ -#define BULKSTAT_FG_QUICK 0x2 /* No iget, walk the dinode cluster */ -#define BULKSTAT_FG_INLINE 0x4 /* No iget if inline attrs */ - -/* * Return stat information in bulk (by-inode) for the filesystem. */ int /* error status */ @@ -56,10 +47,8 @@ xfs_bulkstat( xfs_ino_t *lastino, /* last inode returned */ int *count, /* size of buffer/count returned */ bulkstat_one_pf formatter, /* func that'd fill a single buf */ - void *private_data, /* private data for formatter */ size_t statstruct_size,/* sizeof struct that we're filling */ char __user *ubuffer,/* buffer with inode stats */ - int flags, /* flag to control access method */ int *done); /* 1 if there are more stats to get */ int @@ -84,7 +73,6 @@ xfs_bulkstat_one_int( bulkstat_one_fmt_pf formatter, xfs_daddr_t bno, int *ubused, - void *dibuff, int *stat); int @@ -93,10 +81,8 @@ xfs_bulkstat_one( xfs_ino_t ino, void __user *buffer, int ubsize, - void *private_data, xfs_daddr_t bno, int *ubused, - void *dibuff, int *stat); typedef int (*inumbers_fmt_pf)( From BATV+0e448f5b76c0517233da+2487+infradead.org+hch@bombadil.srs.infradead.org Tue Jun 15 08:19:48 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_43 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5FDJle0088266 for ; Tue, 15 Jun 2010 08:19:48 -0500 X-ASG-Debug-ID: 1276608143-117003870000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id BC28D3C959C for ; Tue, 15 Jun 2010 06:22:23 -0700 (PDT) Received: from bombadil.infradead.org ([18.85.46.34]) by cuda.sgi.com with ESMTP id qTLOvgz5gxjMRS9w for ; Tue, 15 Jun 2010 06:22:23 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OOW5t-0004c5-Vd; Tue, 15 Jun 2010 13:22:21 +0000 Date: Tue, 15 Jun 2010 09:22:21 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com, linux-kernel@vger.kernel.org X-ASG-Orig-Subj: XFS status update for May 2010 Subject: XFS status update for May 2010 Message-ID: <20100615132221.GA17385@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[18.85.46.34] X-Barracuda-Start-Time: 1276608143 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean In May 2010 we saw the long awaited release of Linux 2.6.34, which includes a large XFS update. The most important features appearing in 2.6.34 was the new inode and quota flushing code, which leads to much better I/O patterns for metadata-intensive workloads. Additionally support for synchronous NFS exports has been improved to give much better performance, and performance for the fsync, fdatasync and sync system calls has been improved slightly. A bug when resizing extremely busy filesystems has been fixed, which required extensive modification to the data structure used for looking up the per-allocation group data. Last but not least there was a steady flow of minor bug fixes and cleanups, leading to the following diffstat from 2.6.33 to 2.6.34: 86 files changed, 3209 insertions(+), 3178 deletions(-) Meanwhile active development aimed at 2.6.35 merge progressed. The major feature for this window is the merge of the delayed logging code, which adds a new logging mode that dramatically reduces the bandwidth required for log I/O. See the documentation [1] for details. Testers for this new code are welcome. In userland xfsprogs saw the long awaited 3.1.2 release, which can be considered a bug fix release for xfs_repair, xfs_fsr and mkfs.xfs. After the release a few more fixes were merged into the development tree. The xfstests package saw various new tests, including many tests to exercise the quota code, and a few fixes to existing tests. [1] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=Documentation/filesystems/xfs-delayed-logging-design.txt;h=96d0df28bed323d5596fc051b0ffb96ed8e3c8df;hb=HEAD From SRS0+qVa5+16+fromorbit.com=david@internode.on.net Tue Jun 15 19:30:04 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5G0U4nC106608 for ; Tue, 15 Jun 2010 19:30:04 -0500 X-ASG-Debug-ID: 1276648358-57dc03950000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 5485C1D5C5C2 for ; Tue, 15 Jun 2010 17:32:39 -0700 (PDT) Received: from mail.internode.on.net (bld-mail17.adl2.internode.on.net [150.101.137.102]) by cuda.sgi.com with ESMTP id iEm1tEAunQUkevcE for ; Tue, 15 Jun 2010 17:32:39 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 27863486-1927428 for multiple; Wed, 16 Jun 2010 10:02:37 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OOgYV-0004nS-Uq; Wed, 16 Jun 2010 10:32:35 +1000 Date: Wed, 16 Jun 2010 10:32:35 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfs: avoid synchronous transaction in xfs_fs_write_inode Subject: Re: [PATCH] xfs: avoid synchronous transaction in xfs_fs_write_inode Message-ID: <20100616003235.GU6590@dastard> References: <20100608195905.GA577@infradead.org> <20100609072911.GI7869@dastard> <20100615112051.GA25064@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100615112051.GA25064@infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail17.adl2.internode.on.net[150.101.137.102] X-Barracuda-Start-Time: 1276648360 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32627 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 15, 2010 at 07:20:51AM -0400, Christoph Hellwig wrote: > On Wed, Jun 09, 2010 at 05:29:11PM +1000, Dave Chinner wrote: > > All great - I attempted this myself - but it breaks bulkstat. See > > xfstest 183: > > I can't reproduce the failure. And then I don't think we should > prioritize bulkstate over metadata performance. The only major users > of bulkstat on XFS in the mainline kernel is xfsdump, and metadata > performance during normal loads is a lot more important. And the > difference when using LVM/MD will be even larger with this as barriers > are a lot more expensive there. > > What do you think about adding something like the patch below which > always makes bulkstat always use the iget version which doesn't show > this sort of problems. The big advantage of the non-coherent bulkstat (apart from the order of magnitude performance increase it afforded) is that it doesn't cause the inode cache to grow and cause memory pressure. I was thinking that what I'd like a coherent bulkstat to do is if it causes a cache miss immediately mark the inode as reclaimable so that it gets turfed back out of the cache within a few seconds of bulkstat using it. This will keep the cache growth under control, and keep the speed of cache lookups fairly consistent. It also means we don't need to set up the VFS side of the inode, as this will be done anyway if we get a cache hit on a normal lookup of a reclaimable inode. If we convert back to coherent bulkstat, at minimum I'd like to make this change during the conversion to keep the per-inode CPU overhead at a minimum. The other thing I was thinking is a "bulk inode read" where we insert the entire cluster of inodes into the cache in a single operation. that way we don't have to keep calling the inode read code on every cache miss. With the above "insert as reclaimable inodes" it would significantly reduce the CPU overhead of populating the cache just for bulkstat. With this being done by a prefetch thread or two, we can leave the ioctl thread simply doing cache lookups and formatting.... The big question is what the SGI guys think of this - removing the non-cohenerent modes that are there for optimising specific DMF operations that are otherwise rather costly (i.e. BULKSTAT_FG_INLINE replaces bulkstat/open-by-handle/read xattr/close) and cause cache pollution. Are there ways to do this with coherent bulkstats? However, this raises the same issue with the removal of the remaining DMAPI hooks (that Alex wants more discussion on), so to me the big question is now this: how much of the XFS code that is there specifically for supporting SGI's proprietry applications should be maintained in mainline given that SGI already supports and maintains a separate XFS tree with the significant additional functionality necessary for those applications that is not in mainline.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From sandeen@sandeen.net Tue Jun 15 21:45:29 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5G2jTjk110065 for ; Tue, 15 Jun 2010 21:45:29 -0500 X-ASG-Debug-ID: 1276656484-4ee100fd0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.sandeen.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id E63063CDBD5 for ; Tue, 15 Jun 2010 19:48:04 -0700 (PDT) Received: from mail.sandeen.net (64-131-60-146.usfamily.net [64.131.60.146]) by cuda.sgi.com with ESMTP id 4admDWIAPUiQZSxQ for ; Tue, 15 Jun 2010 19:48:04 -0700 (PDT) Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sandeen.net (Postfix) with ESMTP id CB46742BAD36; Tue, 15 Jun 2010 21:48:03 -0500 (CDT) Message-ID: <4C183B63.5090306@sandeen.net> Date: Tue, 15 Jun 2010 21:48:03 -0500 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.24 (Macintosh/20100228) MIME-Version: 1.0 To: Andi Kleen CC: Andi Kleen , Christoph Hellwig , dgc@fromorbit.com, xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 Subject: Re: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 References: <20100614081356.GA27499@basil.fritz.box> <20100614083021.GA29354@lst.de> <4C15EF75.5080909@linux.intel.com> <20100614124804.GA8547@lst.de> <20100614133958.GH17092@basil.fritz.box> <20100614163122.GB369@basil.fritz.box> In-Reply-To: <20100614163122.GB369@basil.fritz.box> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: 64-131-60-146.usfamily.net[64.131.60.146] X-Barracuda-Start-Time: 1276656484 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32635 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Andi Kleen wrote: > On Mon, Jun 14, 2010 at 03:39:58PM +0200, Andi Kleen wrote: >> On Mon, Jun 14, 2010 at 02:48:04PM +0200, Christoph Hellwig wrote: >>> On Mon, Jun 14, 2010 at 10:59:33AM +0200, Andi Kleen wrote: >>>>> How can this work? bp->data is a void pointer. >>>> It compiled with CONFIG_XFS_DEBUG enabled. Do I need to set some other >>>> option to test this? >>> It fails for me in a normal CONFIG_XFS_DEBUG build: >>> >>> fs/xfs/xfs_da_btree.c: In function 'xfs_da_root_join': >>> fs/xfs/xfs_da_btree.c:737: warning: dereferencing 'void *' pointer >>> fs/xfs/xfs_da_btree.c:737: error: request for member 'magic' in >>> something not a structure or union >>> fs/xfs/xfs_da_btree.c:737: warning: dereferencing 'void *' pointer >> >> Hmm, it really compiled here (scratching head) > > Never mind, it seems SUBDIRS doesn't set the DEBUG flag correctly. really? $ make SUBDIRS=fs/xfs CC [M] fs/xfs/linux-2.6/xfs_super.o fs/xfs/linux-2.6/xfs_super.c:73:2: error: #error DEBUG make[1]: *** [fs/xfs/linux-2.6/xfs_super.o] Error 1 $ grep -A3 XFS_DEBUG fs/xfs/linux-2.6/xfs_super.c #ifdef CONFIG_XFS_DEBUG #error DEBUG #endif (above just for testing) Offtopic I guess, but it sure seems to set it for me. -Eric From maria@ceiec.com Tue Jun 15 23:05:11 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: **** X-Spam-Status: No, score=4.0 required=5.0 tests=BAYES_99 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5G4579M112260 for ; Tue, 15 Jun 2010 23:05:10 -0500 X-ASG-Debug-ID: 1276661477-4e22029b0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from lineu.cb.ufrn.br (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 4DE19AFDDD6 for ; Tue, 15 Jun 2010 21:11:18 -0700 (PDT) Received: from lineu.cb.ufrn.br (lineu.cb.ufrn.br [200.19.174.25]) by cuda.sgi.com with ESMTP id Qym1hPJBhP39sP66 for ; Tue, 15 Jun 2010 21:11:18 -0700 (PDT) Received: from cb.ufrn.br (localhost [127.0.0.1]) by lineu.cb.ufrn.br (Postfix) with ESMTP id 3EEA0B260CF; Wed, 16 Jun 2010 00:25:01 -0300 (BRT) From: "Maria Wong" Reply-To: chi.hangshi@gala.net X-ASG-Orig-Subj: Apply Now ...Part-Time Employment Offer...! Subject: Apply Now ...Part-Time Employment Offer...! 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Reply to chi.hangshi@gala.net for more details Mr.Li Jiaobo. Sales Manager CEIEC BEIJING http://www.beiec.com/cn/ From michael.monnerie@is.it-management.at Wed Jun 16 01:08:02 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5G682rZ118237 for ; Wed, 16 Jun 2010 01:08:02 -0500 X-ASG-Debug-ID: 1276668852-512a03370000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id A15C912AF215 for ; Tue, 15 Jun 2010 23:14:13 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id D2BAeXkXEXrOvZHR for ; Tue, 15 Jun 2010 23:14:13 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id 5C8AF17A for ; Wed, 16 Jun 2010 08:10:34 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id 60CB283C829 for ; Wed, 16 Jun 2010 08:10:23 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: XFS stack corruption: BUG: unable to handle kernel paging request Subject: XFS stack corruption: BUG: unable to handle kernel paging request Date: Wed, 16 Jun 2010 08:10:23 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart6619890.oC9upicNQC"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201006160810.33045@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1276668854 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.52 X-Barracuda-Spam-Status: No, SCORE=-1.52 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_RULE7568M X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32650 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.50 BSF_RULE7568M Custom Rule 7568M X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart6619890.oC9upicNQC Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable This happened while I did an "rsync" to that server, and it was searching t= he files to sync. Messages grabbed from the console: [2188628.147321] BUG: unable to handle kernel paging request at 00000005231= 1ba18 [2188628.147339] IP: [] dequeue_task+0x72/0x110 [2188628.147357] PGD 126a3067 PUD 0=20 [2188628.147362] Thread overran stack, or stack corrupted [2188628.147366] Oops: 0000 [#1] SMP=20 [2188628.147372] last sysfs file: /sys/devices/xen/vif-1/modalias [2188628.147376] CPU 0=20 [2188628.147380] Modules linked in: nls_utf8 nfs lockd fscache nfs_acl auth= _rpcgss sunrpc ipv6 ramzswap xvmalloc lzo_decompress lzo_compress loop dm_m= od reiserfs xfs exportfs xennet xenblk cdrom [2188628.147412] Pid: 30719, comm: pdflush Not tainted 2.6.31.12-0.2-xen #1= =20 [2188628.147416] RIP: e030:[] [] deque= ue_task+0x72/0x110 [2188628.147425] RSP: e02b:ffff88002719df20 EFLAGS: 00010006 [2188628.147428] RAX: 000000000000a380 RBX: ffff880022338340 RCX: 00000000b= 453311b [2188628.147432] RDX: 0000000000000001 RSI: ffff880022338340 RDI: ffffc9000= 000a380 [2188628.147436] RBP: ffff88002719df40 R08: ffff88002719e000 R09: 000000000= 0000000 [2188628.147439] R10: 0000000001c9c356 R11: 0000000000000000 R12: 000000000= 0000000 [2188628.147443] R13: 00000001209bcf34 R14: ffffffff80841c00 R15: ffffffff8= 0841c00 [2188628.147450] FS: 00007fd59f9116f0(0000) GS:ffffc90000000000(0000) knlG= S:0000000000000000 sk+0x72/0x110 [2188628.147425] RSP: e02b:ffff88002719df20 EFLAGS: 00010006 [2188628.147428] RAX: 000000000000a380 RBX: ffff880022338340 RCX: 00000000b= 453311b [2188628.147432] RDX: 0000000000000001 RSI: ffff880022338340 RDI: ffffc9000= 000a380 [2188628.147436] RBP: ffff88002719df40 R08: ffff88002719e000 R09: 000000000= 0000000 [2188628.147439] R10: 0000000001c9c356 R11: 0000000000000000 R12: 000000000= 0000000 [2188628.147443] R13: 00000001209bcf34 R14: ffffffff80841c00 R15: ffffffff8= 0841c00 [2188628.147450] FS: 00007fd59f9116f0(0000) GS:ffffc90000000000(0000) knlG= S:0000000000000000 [2188628.147454] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b [2188628.147458] CR2: 000000052311ba18 CR3: 0000000025a3f000 CR4: 000000000= 0000660 [2188628.147462] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 000000000= 0000000 [2188628.147466] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 000000000= 0000400 [2188628.147471] Process pdflush (pid: 30719, threadinfo ffff88002719e000, = task ffff880022338340) [2188628.147474] Stack: [2188628.147477] ffff88002719df70 00000000b453311b 62a8a813361341f2 ffffc9= 000000a380 [2188628.147484] <0> ffff88002719df70 ffffffff80034968 ffffc9000000a380 000= 00000b453311b [2188628.147492] <0> 00000001209bcf34 ffffc9000000a380 ffff88002719e080 fff= fffff8046c8fc [2188628.147501] Call Trace: [2188628.147516] [] deactivate_task+0x38/0x60 [2188628.147526] [] thread_return+0x157/0x3fb [2188628.147534] [] schedule_timeout+0x14d/0x200 [2188628.147541] [] io_schedule_timeout+0x80/0xf0 [2188628.147549] [] congestion_wait+0x7a/0xb0 [2188628.147589] [] _xfs_buf_lookup_pages+0x326/0x390 [x= fs] [2188628.147692] [] xfs_buf_get_flags+0x81/0x1a0 [xfs] [2188628.147785] [] xfs_buf_read_flags+0x26/0xd0 [xfs] [2188628.147877] [] xfs_trans_read_buf+0x1e9/0x320 [xfs] [2188628.147957] [] xfs_btree_read_buf_block+0x68/0xe0 [= xfs] [2188628.148005] [] xfs_btree_lookup_get_block+0x8e/0x11= 0 [xfs] [2188628.148021] [] xfs_btree_lookup+0xdf/0x4d0 [xfs] [2188628.148021] [] xfs_alloc_lookup_eq+0x27/0x50 [xfs] [2188628.148021] [] xfs_alloc_fixup_trees+0xc6/0x370 [xf= s] [2188628.148021] [] xfs_alloc_ag_vextent_near+0x4e0/0x9a= 0 [xfs] [2188628.148021] [] xfs_alloc_ag_vextent+0x105/0x160 [xf= s] [2188628.148021] [] xfs_alloc_vextent+0x204/0x4b0 [xfs] [2188628.148021] [] xfs_bmap_btalloc+0x18b/0xae0 [xfs] [2188628.148021] [] xfs_bmap_alloc+0x2f/0x70 [xfs] [2188628.148021] [] xfs_bmapi+0xc22/0x1320 [xfs] [2188628.148021] [] xfs_iomap_write_allocate+0x1d8/0x3f0= [xfs] [2188628.148021] [] xfs_iomap+0x2c9/0x300 [xfs] [2188628.148021] [] xfs_map_blocks+0x38/0x60 [xfs] =2D-=20 mit freundlichen Gr=C3=BCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=C3=A4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart6619890.oC9upicNQC Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwYatgACgkQzhSR9xwSCbQBsgCbBdekYdTv9f++tyj+2FyujDYm jlIAn0KhwNI/A9+S+hSwr+UTk1OJe4ko =Y8qE -----END PGP SIGNATURE----- --nextPart6619890.oC9upicNQC-- From ak@linux.intel.com Wed Jun 16 02:31:18 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5G7VIDt120861 for ; Wed, 16 Jun 2010 02:31:18 -0500 X-ASG-Debug-ID: 1276673851-35ee017e0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mga02.intel.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 3A3C112AF83B for ; Wed, 16 Jun 2010 00:37:32 -0700 (PDT) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by cuda.sgi.com with ESMTP id kxGuTqxb0jU26UpK for ; Wed, 16 Jun 2010 00:37:32 -0700 (PDT) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga101.jf.intel.com with ESMTP; 16 Jun 2010 00:33:51 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.53,425,1272870000"; d="scan'208";a="527356598" Received: from unknown (HELO [10.254.178.46]) ([10.254.178.46]) by orsmga002.jf.intel.com with ESMTP; 16 Jun 2010 00:33:51 -0700 Message-ID: <4C187E56.70601@linux.intel.com> Date: Wed, 16 Jun 2010 09:33:42 +0200 From: Andi Kleen User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.1.9) Gecko/20100317 Thunderbird/3.0.4 MIME-Version: 1.0 To: Eric Sandeen CC: Andi Kleen , Christoph Hellwig , dgc@fromorbit.com, xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 Subject: Re: [PATCH] XFS: Fix gcc 4.6 set but not read and unused statement warnings v2 References: <20100614081356.GA27499@basil.fritz.box> <20100614083021.GA29354@lst.de> <4C15EF75.5080909@linux.intel.com> <20100614124804.GA8547@lst.de> <20100614133958.GH17092@basil.fritz.box> <20100614163122.GB369@basil.fritz.box> <4C183B63.5090306@sandeen.net> In-Reply-To: <4C183B63.5090306@sandeen.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mga02.intel.com[134.134.136.20] X-Barracuda-Start-Time: 1276673852 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32656 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean > really? > > $ make SUBDIRS=fs/xfs > CC [M] fs/xfs/linux-2.6/xfs_super.o > fs/xfs/linux-2.6/xfs_super.c:73:2: error: #error DEBUG > make[1]: *** [fs/xfs/linux-2.6/xfs_super.o] Error 1 > > $ grep -A3 XFS_DEBUG fs/xfs/linux-2.6/xfs_super.c > #ifdef CONFIG_XFS_DEBUG > #error DEBUG > #endif > > (above just for testing) > > Offtopic I guess, but it sure seems to set it for me. You did a full build with XFS_DEBUG before without SUBDIRS, right? Kbuild puts the options into special .cmd files and I think those only get rebuild on a full build, not on a SUBDIRS build. So it never picked up the changed option for me. Anyways that's the current theory, haven't retested that. -Andi From rolek@bokxing.nl Wed Jun 16 04:10:35 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5G9AZTZ123670 for ; Wed, 16 Jun 2010 04:10:35 -0500 X-ASG-Debug-ID: 1276679807-36a303560000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bork.lsof.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 737C21598D87 for ; Wed, 16 Jun 2010 02:16:48 -0700 (PDT) Received: from bork.lsof.org (bork.lsof.org [87.253.148.42]) by cuda.sgi.com with ESMTP id K6Yk8TxonMSjDVE2 for ; Wed, 16 Jun 2010 02:16:48 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by bork.lsof.org (Postfix) with ESMTP id 46571BA3F for ; Wed, 16 Jun 2010 11:13:09 +0200 (CEST) Received: from bork.lsof.org ([127.0.0.1]) by localhost (bork.lsof.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id BlraG0UxLN7H for ; Wed, 16 Jun 2010 11:13:07 +0200 (CEST) Received: from bork.lsof.org (localhost [127.0.0.1]) by bork.lsof.org (Postfix) with ESMTP id 32833B98D for ; Wed, 16 Jun 2010 11:13:07 +0200 (CEST) References: <20100615132221.GA17385@infradead.org> Message-ID: X-Mailer: http://www.courier-mta.org/cone/ From: Roel van Meer To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: XFS status update for May 2010 Subject: Re: XFS status update for May 2010 Date: Wed, 16 Jun 2010 11:13:07 +0200 Mime-Version: 1.0 Content-Type: text/plain; format=flowed; charset="US-ASCII" Content-Disposition: inline Content-Transfer-Encoding: 7bit X-Barracuda-Connect: bork.lsof.org[87.253.148.42] X-Barracuda-Start-Time: 1276679809 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0018 1.0000 -2.0091 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.01 X-Barracuda-Spam-Status: No, SCORE=-2.01 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32662 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Christoph Hellwig writes: > Meanwhile active development aimed at 2.6.35 merge progressed. The > major feature for this window is the merge of the delayed logging code, > which adds a new logging mode that dramatically reduces the bandwidth > required for log I/O. See the documentation [1] for details. Testers > for this new code are welcome. As of today I'm running 2.6.35-rc3 with XFS and delayed logging on a 4GB software raid0 we use to do nightly builds of about 150 software packages (kernel, samba, etc) on Slackware 10.1. If there's anything specific I can do, please let me know. I have some more hardware around to test with. By the way: thanks for these monthly status updates: they're really useful! Regards, roel From BATV+21cb88d0865851a33e05+2488+infradead.org+hch@bombadil.srs.infradead.org Wed Jun 16 04:38:38 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5G9camk124367 for ; Wed, 16 Jun 2010 04:38:38 -0500 X-ASG-Debug-ID: 1276681491-21ca01470000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 14C4CB00C19 for ; Wed, 16 Jun 2010 02:44:51 -0700 (PDT) Received: from bombadil.infradead.org ([18.85.46.34]) by cuda.sgi.com with ESMTP id Kyhkhc4PEU49rqJ8 for ; Wed, 16 Jun 2010 02:44:51 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OOp7Q-00030V-K6; Wed, 16 Jun 2010 09:41:12 +0000 Date: Wed, 16 Jun 2010 05:41:12 -0400 From: Christoph Hellwig To: Michael Monnerie Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: XFS stack corruption: BUG: unable to handle kernel paging request Subject: Re: XFS stack corruption: BUG: unable to handle kernel paging request Message-ID: <20100616094112.GA16216@infradead.org> References: <201006160810.33045@zmi.at> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201006160810.33045@zmi.at> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[18.85.46.34] X-Barracuda-Start-Time: 1276681492 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed, Jun 16, 2010 at 08:10:23AM +0200, Michael Monnerie wrote: > This happened while I did an "rsync" to that server, and it was searching the files to sync. > Messages grabbed from the console: This might as well be another stack overflow. You don't happen to have more lines of the stack trace? I fear this might be another case of direct reclaim hitting you. Try backporting commit 070ecdca54dde9577d2697088e74e45568f48efb "xfs: skip writeback from reclaim context", that should get rid of places calling into ->writepage with already deep stack usage. From BATV+21cb88d0865851a33e05+2488+infradead.org+hch@bombadil.srs.infradead.org Wed Jun 16 04:39:26 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5G9dPYn124400 for ; Wed, 16 Jun 2010 04:39:26 -0500 X-ASG-Debug-ID: 1276681322-532100f40000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 1FE9A14DF969 for ; Wed, 16 Jun 2010 02:42:03 -0700 (PDT) Received: from bombadil.infradead.org ([18.85.46.34]) by cuda.sgi.com with ESMTP id lZcUfAdoVEcxpAdl for ; Wed, 16 Jun 2010 02:42:03 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OOp8C-0004mW-8V; Wed, 16 Jun 2010 09:42:00 +0000 Date: Wed, 16 Jun 2010 05:42:00 -0400 From: Christoph Hellwig To: Roel van Meer Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: XFS status update for May 2010 Subject: Re: XFS status update for May 2010 Message-ID: <20100616094200.GB16216@infradead.org> References: <20100615132221.GA17385@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[18.85.46.34] X-Barracuda-Start-Time: 1276681323 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed, Jun 16, 2010 at 11:13:07AM +0200, Roel van Meer wrote: > As of today I'm running 2.6.35-rc3 with XFS and delayed logging on a 4GB > software raid0 we use to do nightly builds of about 150 software > packages (kernel, samba, etc) on Slackware 10.1. > > If there's anything specific I can do, please let me know. I have > some more hardware around to test with. As long as things just work everything is perfect! If you have any performance numbers that compare to older kernel / the non delayed logging case for your workload we would certainly be interested in them. From michael.monnerie@is.it-management.at Wed Jun 16 05:22:18 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5GAMHKa125541 for ; Wed, 16 Jun 2010 05:22:18 -0500 X-ASG-Debug-ID: 1276684110-21c003bd0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id AC9E61599060 for ; Wed, 16 Jun 2010 03:28:31 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id hbDn8MH2Syu5FEBX for ; Wed, 16 Jun 2010 03:28:31 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id B416F17A; Wed, 16 Jun 2010 12:24:51 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id 8814383C829; Wed, 16 Jun 2010 12:24:40 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: XFS stack corruption: BUG: unable to handle kernel paging request Subject: Re: XFS stack corruption: BUG: unable to handle kernel paging request Date: Wed, 16 Jun 2010 12:24:50 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) References: <201006160810.33045@zmi.at> <20100616094112.GA16216@infradead.org> In-Reply-To: <20100616094112.GA16216@infradead.org> Cc: Christoph Hellwig MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart2774406.fudCLS3Rcd"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201006161224.50941@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1276684111 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32666 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart2774406.fudCLS3Rcd Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable On Mittwoch, 16. Juni 2010 Christoph Hellwig wrote: > This might as well be another stack overflow. You don't happen to > have more lines of the stack trace? I fear this might be another > case of direct reclaim hitting you. Sorry, no. I thought it looks like it stuck, but that were the last=20 lines, and the VM didn't react anymore, I had to "force shutdown" it. =20 > Try backporting commit 070ecdca54dde9577d2697088e74e45568f48efb > "xfs: skip writeback from reclaim context", that should get rid of > places calling into ->writepage with already deep stack usage. =20 As I use a standard openSUSE 11.2 kernel, I'll report a bug at Novell=20 and they must fix it. Thank you! =2D-=20 mit freundlichen Gr=FCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=E4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart2774406.fudCLS3Rcd Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwYpnIACgkQzhSR9xwSCbQfawCePkqLGluD0PEgRVF1e34hmkvt u70AoLl9thJplcX370o8ZVc3T2SUXi4A =sZoH -----END PGP SIGNATURE----- --nextPart2774406.fudCLS3Rcd-- From michael.monnerie@is.it-management.at Wed Jun 16 05:32:38 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5GAWbY4125848 for ; Wed, 16 Jun 2010 05:32:37 -0500 X-ASG-Debug-ID: 1276684731-720400540000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id DD672B0189F for ; Wed, 16 Jun 2010 03:38:51 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id m8ZUG3zF6CHEtl4R for ; Wed, 16 Jun 2010 03:38:51 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id E0C9517A; Wed, 16 Jun 2010 12:35:11 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id BE3FD83C829; Wed, 16 Jun 2010 12:35:00 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: XFS stack corruption: BUG: unable to handle kernel paging request Subject: Re: XFS stack corruption: BUG: unable to handle kernel paging request Date: Wed, 16 Jun 2010 12:35:10 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) Cc: Christoph Hellwig References: <201006160810.33045@zmi.at> <20100616094112.GA16216@infradead.org> In-Reply-To: <20100616094112.GA16216@infradead.org> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1629307.e8px6EeMu8"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201006161235.11172@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1276684731 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32668 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart1629307.e8px6EeMu8 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable On Mittwoch, 16. Juni 2010 Christoph Hellwig wrote: > Try backporting commit 070ecdca54dde9577d2697088e74e45568f48efb > "xfs: skip writeback from reclaim context", that should get rid of > places calling into ->writepage with already deep stack usage. I 've just entered bug 614670 at Novell: https://bugzilla.novell.com/show_bug.cgi?id=3D614670 Just for reference. =2D-=20 mit freundlichen Gr=FCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=E4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart1629307.e8px6EeMu8 Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwYqN8ACgkQzhSR9xwSCbT1hQCg4++hyuS8rn6IRtGzlp/PZYjw T5UAoJWqH/jR2lT+29o8+lLbztH4eBKR =sAin -----END PGP SIGNATURE----- --nextPart1629307.e8px6EeMu8-- From dan.j.rosenberg@gmail.com Wed Jun 16 08:04:34 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM, T_DKIM_INVALID autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5GD4YK3130124 for ; Wed, 16 Jun 2010 08:04:34 -0500 X-ASG-Debug-ID: 1276693631-7d7202590000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail-iw0-f181.google.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id DED373D0345 for ; Wed, 16 Jun 2010 06:07:11 -0700 (PDT) Received: from mail-iw0-f181.google.com (mail-iw0-f181.google.com [209.85.214.181]) by cuda.sgi.com with ESMTP id PCQutOoNy774Za69 for ; Wed, 16 Jun 2010 06:07:11 -0700 (PDT) Received: by iwn33 with SMTP id 33so2864633iwn.26 for ; Wed, 16 Jun 2010 06:07:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:cc:content-type; bh=R7PXNlO4k6+9Ipqbl0Do1dO7fvP6KuAuEVbocSQRtQE=; b=HFmw2hAa/Fcl2VkC96Ij7j7p2sCdl/49WFnehzu2ESXCJXcOpmOdtv4MvNZPO5qKvN dtz5ZJFt+qC24DOjNPI4aHfZTvpILjYA2LwroaaTLTruWF+AzSdRYf9z89TVhwxPo1/S 4Kt2jOh+3pXefKgH410OI/qM416qVqj9vSqFs= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=kcpHaZ9+by9rEAwnWRSzbr438ezmZPZQLVdA/u/Wp9dDyDlPGD1c8NhykHwJrK0esm 8gQw/3VesM9SRkgcaqq71b9ulFcnmzO1434/m1AbLAt1Lcux8+0ZUO1hjq7r23emRCZb sF3wcW6rhdVuxxPw5NzT1pvsGpHHtLvQj18uQ= MIME-Version: 1.0 Received: by 10.231.184.75 with SMTP id cj11mr9525721ibb.51.1276693630388; Wed, 16 Jun 2010 06:07:10 -0700 (PDT) Received: by 10.231.200.197 with HTTP; Wed, 16 Jun 2010 06:07:10 -0700 (PDT) In-Reply-To: <20100616121142.GA22317@infradead.org> References: <20100616121142.GA22317@infradead.org> Date: Wed, 16 Jun 2010 09:07:10 -0400 Message-ID: X-ASG-Orig-Subj: Re: [Security] XFS swapext ioctl minor security issues Subject: Re: [Security] XFS swapext ioctl minor security issues From: Dan Rosenberg To: Christoph Hellwig , xfs@oss.sgi.com Cc: Eugene Teo , aelder@sgi.com, security@kernel.org Content-Type: multipart/mixed; boundary=0016367d6dec5389d104892566fa X-Barracuda-Connect: mail-iw0-f181.google.com[209.85.214.181] X-Barracuda-Start-Time: 1276693631 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0070 1.0000 -1.9755 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.98 X-Barracuda-Spam-Status: No, SCORE=-1.98 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32677 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 X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --0016367d6dec5389d104892566fa Content-Type: text/plain; charset=ISO-8859-1 Sure thing. This patch is against 2.6.34, but it appears that it can apply to >= 2.6.25. Let me know if you need a fix for < 2.6.25. For those new to the conversation, this patch prevents user "foo" from using the SWAPEXT ioctl to swap a write-only file owned by user "bar" into a file owned by "foo" and subsequently reading it. It does so by checking that the file descriptors passed to the ioctl are also opened for reading. In addition, after swapping any suid/sgid bits should be cleared. -Dan On Wed, Jun 16, 2010 at 8:11 AM, Christoph Hellwig wrote: > Dan, can you please send your fixes to the XFS list so that we can > include them? > > --0016367d6dec5389d104892566fa Content-Type: text/x-patch; charset=US-ASCII; name="xfs-swapext-ioctl.patch" Content-Disposition: attachment; filename="xfs-swapext-ioctl.patch" Content-Transfer-Encoding: base64 X-Attachment-Id: f_gai65p1a0 LS0tIGZzL3hmcy94ZnNfZGZyYWcuYy5vcmlnICAgICAyMDEwLTA2LTE1IDA5OjE2OjA1LjAwMDAw MDAwMCAtMDQwMAorKysgZnMveGZzL3hmc19kZnJhZy5jICAyMDEwLTA2LTE1IDA5OjMwOjE3LjAw MDAwMDAwMCAtMDQwMApAQCAtNjksNyArNjksOSBAQCB4ZnNfc3dhcGV4dCgKICAgICAgICAgICAg ICAgIGdvdG8gb3V0OwogICAgICAgIH0KCi0gICAgICAgaWYgKCEoZmlsZS0+Zl9tb2RlICYgRk1P REVfV1JJVEUpIHx8IChmaWxlLT5mX2ZsYWdzICYgT19BUFBFTkQpKSB7CisgICAgICAgaWYgKCEo ZmlsZS0+Zl9tb2RlICYgRk1PREVfV1JJVEUpIHx8CisgICAgICAgICAgICEoZmlsZS0+Zl9tb2Rl ICYgRk1PREVfUkVBRCkgfHwKKyAgICAgICAgICAgIChmaWxlLT5mX2ZsYWdzICYgT19BUFBFTkQp KSB7CiAgICAgICAgICAgICAgICBlcnJvciA9IFhGU19FUlJPUihFQkFERik7CiAgICAgICAgICAg ICAgICBnb3RvIG91dF9wdXRfZmlsZTsKICAgICAgICB9CkBAIC04MSw3ICs4Myw4IEBAIHhmc19z d2FwZXh0KAogICAgICAgIH0KCiAgICAgICAgaWYgKCEodG1wX2ZpbGUtPmZfbW9kZSAmIEZNT0RF X1dSSVRFKSB8fAotICAgICAgICAgICAodG1wX2ZpbGUtPmZfZmxhZ3MgJiBPX0FQUEVORCkpIHsK KyAgICAgICAgICAgISh0bXBfZmlsZS0+Zl9tb2RlICYgRk1PREVfUkVBRCkgfHwKKyAgICAgICAg ICAgICh0bXBfZmlsZS0+Zl9mbGFncyAmIE9fQVBQRU5EKSkgewogICAgICAgICAgICAgICAgZXJy b3IgPSBYRlNfRVJST1IoRUJBREYpOwogICAgICAgICAgICAgICAgZ290byBvdXRfcHV0X3RtcF9m aWxlOwogICAgICAgIH0KQEAgLTExMiw2ICsxMTUsMTEgQEAgeGZzX3N3YXBleHQoCgogICAgICAg IGVycm9yID0geGZzX3N3YXBfZXh0ZW50cyhpcCwgdGlwLCBzeHApOwoKKyAgICAgICBpZighZXJy b3IpIHsKKyAgICAgICAgICAgICAgIGZpbGVfcmVtb3ZlX3N1aWQodG1wX2ZpbGUpOworICAgICAg ICAgICAgICAgZmlsZV9yZW1vdmVfc3VpZChmaWxlKTsKKyAgICAgICB9CisgCiAgb3V0X3B1dF90 bXBfZmlsZToKICAgICAgICBmcHV0KHRtcF9maWxlKTsKICBvdXRfcHV0X2ZpbGU6Cgo= --0016367d6dec5389d104892566fa-- From BATV+21cb88d0865851a33e05+2488+infradead.org+hch@bombadil.srs.infradead.org Wed Jun 16 08:31:57 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5GDVu9U130902 for ; Wed, 16 Jun 2010 08:31:57 -0500 X-ASG-Debug-ID: 1276695273-0d2001520000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 0E3EE1E0DB3C; Wed, 16 Jun 2010 06:34:33 -0700 (PDT) Received: from bombadil.infradead.org ([18.85.46.34]) by cuda.sgi.com with ESMTP id DuukeB41PG1GjqFG; Wed, 16 Jun 2010 06:34:33 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OOslF-00073F-CK; Wed, 16 Jun 2010 13:34:33 +0000 Date: Wed, 16 Jun 2010 09:34:33 -0400 From: Christoph Hellwig To: Dan Rosenberg Cc: Christoph Hellwig , xfs@oss.sgi.com, Eugene Teo , aelder@sgi.com, security@kernel.org X-ASG-Orig-Subj: Re: [Security] XFS swapext ioctl minor security issues Subject: Re: [Security] XFS swapext ioctl minor security issues Message-ID: <20100616133433.GA16437@infradead.org> References: <20100616121142.GA22317@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[18.85.46.34] X-Barracuda-Start-Time: 1276695274 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed, Jun 16, 2010 at 09:07:10AM -0400, Dan Rosenberg wrote: > Sure thing. This patch is against 2.6.34, but it appears that it can > apply to >= 2.6.25. Let me know if you need a fix for < 2.6.25. > > For those new to the conversation, this patch prevents user "foo" from > using the SWAPEXT ioctl to swap a write-only file owned by user "bar" > into a file owned by "foo" and subsequently reading it. It does so by > checking that the file descriptors passed to the ioctl are also opened > for reading. This part is okay. If you provide a Signed-off-by: line it can be put into the tree ASAP. > In addition, after swapping any suid/sgid bits should be > cleared. I'm still trying to understand this one. Clearly we do not want to simply drop the suid/sgid bits here - swapext is just supposed to optimize file layout, but not change i_mode. So if the suid bit really is a risk here we need to refuse to swapext it. What's the scenario here: - swapext is called by the owner and the suid bit is set, or the owner is member of the group and the sgid bit is set, this should be fine. - the caller is not the owner, but has write access to the file. an actual write to change the data by the user would already drop the bits, so in theory swapext should be fine. But we might lose some important metadata in extended attributes that previously might have made the file safe, say per-file capabilities. I'd love to here the exact scenario, but for let's play safe and refuse the swapex for that case, by doing something: /* * SGID without any exec bits is just a mandatory locking mark. */ #define is_sgid(mode) \ (((mode) & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) ... struct inode *inode, *tmp_inode; ... inode = file->f_path.dentry->d_inode; tmp_inode = tmp_file->f_path.dentry->d_inode; ... error = XFS_ERROR(EPERM); if ((inode->i_mode & S_ISUID) && !is_owner_or_cap(inode)) goto out; if ((tmp_inode->i_mode & S_ISUID) && !is_owner_or_cap(tmp_inode)) goto out; if (is_sgid(inode->i_mode) && !in_group_p(inode->i_gid)) goto out; if (is_sgid(tmp_inode->i_mode) && !in_group_p(tmp_inode->i_gid)) goto out; From dan.j.rosenberg@gmail.com Wed Jun 16 08:55:00 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM, T_DKIM_INVALID autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5GDt0fE131620 for ; Wed, 16 Jun 2010 08:55:00 -0500 X-ASG-Debug-ID: 1276696656-1cac01d70000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail-iw0-f181.google.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 9523F3D06E7 for ; Wed, 16 Jun 2010 06:57:36 -0700 (PDT) Received: from mail-iw0-f181.google.com (mail-iw0-f181.google.com [209.85.214.181]) by cuda.sgi.com with ESMTP id tRLSRVHbADBj1Dud for ; Wed, 16 Jun 2010 06:57:36 -0700 (PDT) Received: by iwn33 with SMTP id 33so2906144iwn.26 for ; Wed, 16 Jun 2010 06:57:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=rdQLof4Ca3Mtl1MQJ1g1F3kTotdXTqIKCIaV6asNGeo=; b=kZrwiaB8lI5DTdHqvRBccJOzB1TTlzyxPEx26lnb+NjVYxbELAajuYWC3Vqq2IaMeX jmT8P3+XbpvN496mthy7jij5RpYcSeJbQCVActkJgzxdBtcP7Yr8Ac/uVNpZgEbeUJdD L+Njw4mUqvbkiLuGcQD/w8k1rxBYk1Z+63LMw= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=LmVPN7aalCLFK0N1GGZ8qjjnnrYKG/N2Bn/CS8qW/DprJ6Gv4nJyNBhg5olkZ2kv22 /Se1OczT6YZtIlANzjDTTnbfyO7oSNNljwBqnyDE0CfL8r5D0KCqOcNqTmyBXoKSwqBW g2sV6RxH04QxWlfNfGEB1/JA/ATxNZH6CSNik= MIME-Version: 1.0 Received: by 10.42.7.7 with SMTP id c7mr3146779icc.20.1276696655742; Wed, 16 Jun 2010 06:57:35 -0700 (PDT) Received: by 10.231.200.197 with HTTP; Wed, 16 Jun 2010 06:57:35 -0700 (PDT) In-Reply-To: <20100616133433.GA16437@infradead.org> References: <20100616121142.GA22317@infradead.org> <20100616133433.GA16437@infradead.org> Date: Wed, 16 Jun 2010 09:57:35 -0400 Message-ID: X-ASG-Orig-Subj: Re: [Security] XFS swapext ioctl minor security issues Subject: Re: [Security] XFS swapext ioctl minor security issues From: Dan Rosenberg To: Christoph Hellwig Cc: xfs@oss.sgi.com, Eugene Teo , aelder@sgi.com, security@kernel.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail-iw0-f181.google.com[209.85.214.181] X-Barracuda-Start-Time: 1276696657 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32681 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 X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean I removed the part of the patch dealing with suid/sgid bits - your reasoning seems good, we clearly don't want to just drop the suid/sgid bits. =A0I was just trying to point out the case where the caller is not the owner and has write access to the file; since in the ordinary case writing to that file would result in dropping the suid bit, I thought this ioctl should try to replicate that behavior. Signed-off-by: Dan Rosenberg diff -up fs/xfs/xfs_dfrag.c.orig fs/xfs/xfs_dfrag.c --- fs/xfs/xfs_dfrag.c.orig =A0 =A0 2010-06-15 09:16:05.000000000 -0400 +++ fs/xfs/xfs_dfrag.c =A02010-06-16 09:47:01.000000000 -0400 @@ -69,7 +69,9 @@ xfs_swapext( =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0goto out; =A0 =A0 =A0 =A0} - =A0 =A0 =A0 if (!(file->f_mode & FMODE_WRITE) || (file->f_flags & O_APPEN= D)) { + =A0 =A0 =A0 if (!(file->f_mode & FMODE_WRITE) || + =A0 =A0 =A0 =A0 =A0 !(file->f_mode & FMODE_READ) || + =A0 =A0 =A0 =A0 =A0 =A0(file->f_flags & O_APPEND)) { =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0error =3D XFS_ERROR(EBADF); =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0goto out_put_file; =A0 =A0 =A0 =A0} @@ -81,7 +83,8 @@ xfs_swapext( =A0 =A0 =A0 =A0} =A0 =A0 =A0 =A0if (!(tmp_file->f_mode & FMODE_WRITE) || - =A0 =A0 =A0 =A0 =A0 (tmp_file->f_flags & O_APPEND)) { + =A0 =A0 =A0 =A0 =A0 !(tmp_file->f_mode & FMODE_READ) || + =A0 =A0 =A0 =A0 =A0 =A0(tmp_file->f_flags & O_APPEND)) { =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0error =3D XFS_ERROR(EBADF); =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0goto out_put_tmp_file; =A0 =A0 =A0 =A0} On Wed, Jun 16, 2010 at 9:34 AM, Christoph Hellwig wrot= e: > On Wed, Jun 16, 2010 at 09:07:10AM -0400, Dan Rosenberg wrote: >> Sure thing. =A0This patch is against 2.6.34, but it appears that it can >> apply to >=3D 2.6.25. =A0Let me know if you need a fix for < 2.6.25. >> >> For those new to the conversation, this patch prevents user "foo" from >> using the SWAPEXT ioctl to swap a write-only file owned by user "bar" >> into a file owned by "foo" and subsequently reading it. =A0It does so by >> checking that the file descriptors passed to the ioctl are also opened >> for reading. > > This part is okay. =A0If you provide a Signed-off-by: line it > can be put into the tree ASAP. > >> In addition, after swapping any suid/sgid bits should be >> cleared. > > I'm still trying to understand this one. =A0Clearly we do not want to > simply drop the suid/sgid bits here - swapext is just supposed to > optimize file layout, but not change i_mode. =A0So if the suid bit > really is a risk here we need to refuse to swapext it. > > What's the scenario here: > > =A0- swapext is called by the owner and the suid bit is set, or > =A0 the owner is member of the group and the sgid bit is set, > =A0 this should be fine. > =A0- the caller is not the owner, but has write access to the file. > =A0 an actual write to change the data by the user would already drop > =A0 the bits, so in theory swapext should be fine. =A0But we might lose > =A0 some important metadata in extended attributes that previously > =A0 might have made the file safe, say per-file capabilities. > =A0 I'd love to here the exact scenario, but for let's play safe and > =A0 refuse the swapex for that case, by doing something: > > /* > =A0* SGID without any exec bits is just a mandatory locking mark. > =A0*/ > #define is_sgid(mode) \ > =A0 =A0 =A0 =A0(((mode) & (S_ISGID|S_IXGRP)) =3D=3D (S_ISGID|S_IXGRP)) > > ... > > =A0 =A0 =A0 =A0struct inode *inode, *tmp_inode; > > ... > > =A0 =A0 =A0 =A0inode =3D file->f_path.dentry->d_inode; > =A0 =A0 =A0 =A0tmp_inode =3D tmp_file->f_path.dentry->d_inode; > > ... > > =A0 =A0 =A0 =A0error =3D XFS_ERROR(EPERM); > =A0 =A0 =A0 =A0if ((inode->i_mode & S_ISUID) && !is_owner_or_cap(inode)) > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0goto out; > =A0 =A0 =A0 =A0if ((tmp_inode->i_mode & S_ISUID) && !is_owner_or_cap(tmp_= inode)) > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0goto out; > =A0 =A0 =A0 =A0if (is_sgid(inode->i_mode) && !in_group_p(inode->i_gid)) > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0goto out; > =A0 =A0 =A0 =A0if (is_sgid(tmp_inode->i_mode) && !in_group_p(tmp_inode->i= _gid)) > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0goto out; > > > From michael.monnerie@is.it-management.at Wed Jun 16 09:32:00 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5GEW0SJ132675 for ; Wed, 16 Jun 2010 09:32:00 -0500 X-ASG-Debug-ID: 1276699094-493a03870000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id AC45CB0176C for ; Wed, 16 Jun 2010 07:38:14 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id flAsTtilG9IXcBoj for ; Wed, 16 Jun 2010 07:38:14 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id 9252817A for ; Wed, 16 Jun 2010 16:34:33 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id 24D1F83C829 for ; Wed, 16 Jun 2010 16:34:22 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: wrong man page of xfs_metadump Subject: wrong man page of xfs_metadump Date: Wed, 16 Jun 2010 16:34:32 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart4564665.AI9ZlAWqHW"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201006161634.32825@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1276699095 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0451 1.0000 -1.7305 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.73 X-Barracuda-Spam-Status: No, SCORE=-1.73 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32684 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart4564665.AI9ZlAWqHW Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable The man page says: xfs_metadump should only be used to copy unmounted filesystems, read- only mounted filesystems, or frozen filesystems (see xfs_freeze(8)). =20 Otherwise, the generated dump could be inconsistent or corrupt. I tried to use it nevertheless, but it doesn't run at all: xfs_metadump: /dev/orionStore/data contains a mounted and writable=20 filesystem fatal error -- couldn't initialize XFS library So the wording should better be xfs_metadump can only be used to copy unmounted filesystems, read-only=20 mounted filesystems, or frozen filesystems (see xfs_freeze(8)). It=20 refuses to work with r/w mounted filesystems. =2D-=20 mit freundlichen Gr=C3=BCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=C3=A4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart4564665.AI9ZlAWqHW Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwY4PgACgkQzhSR9xwSCbTVygCg6j5Jtc/pHv0OWbjeB2Hgp1FV sfMAoMwupMnGBEce44N7xYE3m4BuE/J+ =ii+n -----END PGP SIGNATURE----- --nextPart4564665.AI9ZlAWqHW-- From billie@ac-tech.com Wed Jun 16 11:20:30 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.8 required=5.0 tests=BAYES_50,RATWARE_HELO_DM autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5GGKTI4135771 for ; Wed, 16 Jun 2010 11:20:29 -0500 X-ASG-Debug-ID: 1276705602-4f8a028e0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from alvin.ai.co.zw (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id B3894159A935 for ; Wed, 16 Jun 2010 09:26:44 -0700 (PDT) Received: from alvin.ai.co.zw (mx7.ai.co.zw [41.221.159.50]) by cuda.sgi.com with ESMTP id xOZFpd8yMqqHahOr for ; Wed, 16 Jun 2010 09:26:44 -0700 (PDT) Received: from FBCL-MAIL-01.fbcl.fbch.corp (unknown [196.44.191.152]) by alvin.ai.co.zw (Postfix) with ESMTP id 893312831572; Wed, 16 Jun 2010 04:37:00 -0200 (GMT+2) Received: from DM ([194.0.0.245] RDNS failed) by FBCL-MAIL-01.fbcl.fbch.corp with Microsoft SMTPSVC(6.0.3790.4675); Wed, 16 Jun 2010 04:36:42 +0200 From: "awesome" To: adv-engineering@yandex.ru Cc: c.kreuzwieser@lenzing.com, xfs@oss.sgi.com, robocup-tech@symbio.jst.go.jp, ro03@txstate.edu, tammy@mgstevens.com, arc102@ntelos.net, newsletter@ciudad.com.ar X-ASG-Orig-Subj: re: dentist data Subject: re: dentist data Content-Type: text/plain; Content-Transfer-Encoding: 7Bit Message-ID: X-OriginalArrivalTime: 16 Jun 2010 02:36:43.0546 (UTC) FILETIME=[C1F3BFA0:01CB0CFC] Date: 16 Jun 2010 04:36:43 +0200 X-EsetResult: clean, is OK X-EsetId: 78259B27BB333C322369 X-Barracuda-Connect: mx7.ai.co.zw[41.221.159.50] X-Barracuda-Start-Time: 1276705605 X-Barracuda-Bayes: INNOCENT GLOBAL 0.3598 1.0000 -0.1191 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -0.12 X-Barracuda-Spam-Status: No, SCORE=-0.12 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32689 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Here's a business list package on sale this week only: Business List Silver Package Manufacturers Database - 1,057,119 records with 476,509 emails Real Estate Agents - 1 million records with emails US New Business Database - 4.8 million records all with emails Financial Planners Database - 148,857 records all with emails Finance and Money Professionals Database - 116,568 records all with emails All complete lists above: $345 There are more packages and not just for business. we also have healthcare, consumers and more. Contact me here for more info or to get samples: successandresults@gmx.com you must press here to stop the mail please email remfiles@gmx.com From SRS0+TCJd+17+fromorbit.com=dave@internode.on.net Wed Jun 16 21:21:31 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5H2LU2Y152915 for ; Wed, 16 Jun 2010 21:21:31 -0500 X-ASG-Debug-ID: 1276741445-5a6e00bf0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id B7ACC3D60AE for ; Wed, 16 Jun 2010 19:24:06 -0700 (PDT) Received: from mail.internode.on.net (bld-mail17.adl2.internode.on.net [150.101.137.102]) by cuda.sgi.com with ESMTP id FAHMhXggiBz9Fca1 for ; Wed, 16 Jun 2010 19:24:06 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28032813-1927428 for ; Thu, 17 Jun 2010 11:54:04 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OP4lu-0006NO-Qt for xfs@oss.sgi.com; Thu, 17 Jun 2010 12:24:02 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OP4ls-0002OV-SJ for xfs@oss.sgi.com; Thu, 17 Jun 2010 12:24:00 +1000 From: Dave Chinner To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH] xfsqa: test open_by_handle() on unlinked and freed inode clusters Subject: [PATCH] xfsqa: test open_by_handle() on unlinked and freed inode clusters Date: Thu, 17 Jun 2010 12:24:00 +1000 Message-Id: <1276741440-9178-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 X-Barracuda-Connect: bld-mail17.adl2.internode.on.net[150.101.137.102] X-Barracuda-Start-Time: 1276741447 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32730 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner When Christoph and I were discussing bulkstat coherency on IRC, we realised that inode lookup from bulkstat was not actually looking up the inode allocation btree in xfs_imap() before reading the inode buffer from disk in xfs_iread(). Bulkstat uses the same lookup mechanism as handle validation to avoid shutting down the filesystem if inode numbers that point to non-inode buffers (i.e. invalid) are passed in the handle. The problem with this is that when we delete inodes from disk and we remove the inode chunk (i.e. deallocate inodes) we mark both the inodes in memory and the cluster buffer as stale, thereby preventing it from being written back to disk. The result of this is that some number of inodes remain on disk looking like allocated, in use inodes (i.e. di_mode is not zero). Hence if we get a cold cache lookup from a stale handle that references such an inode, we can read the inode off disk even though it has been deleted because we don't check if the inode is allocated or not. If the inode chunk has not been overwritten, then the inode read will succeed and the handle-to-dentry conversion will not error out like it is supposed to. The result is that stale NFS filehandles and open_by_handle() will succeed incorrectly on unlinked files for cold cache lookups. This is a bug that has been present ever since the inode chunk deletion code was implemented. This test exercises the problem and documents the hoops you have to jump through to reproduce it. Signed-off-by: Dave Chinner --- 238 | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 238.out | 2 ++ group | 1 + src/Makefile | 3 ++- 4 files changed, 62 insertions(+), 1 deletions(-) create mode 100755 238 create mode 100644 238.out diff --git a/238 b/238 new file mode 100755 index 0000000..47214b7 --- /dev/null +++ b/238 @@ -0,0 +1,57 @@ +#! /bin/bash +# FS QA Test No. $id +# +# what am I here for? +# +#----------------------------------------------------------------------- +# Copyright (c) 2010 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 +#----------------------------------------------------------------------- +# +# creator +owner=dchinner@redhat.com + +seq=`basename $0` +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 + +# Modify as appropriate. +_supported_fs xfs +_supported_os Linux +_require_scratch + +echo "Silence is golden" + +_scratch_mkfs +_scratch_mount +src/stale_handle $SCRATCH_MNT +status=$? +exit diff --git a/238.out b/238.out new file mode 100644 index 0000000..9d5b672 --- /dev/null +++ b/238.out @@ -0,0 +1,2 @@ +QA output created by 238 +Silence is golden diff --git a/group b/group index 5c2d252..ee835d6 100644 --- a/group +++ b/group @@ -351,3 +351,4 @@ deprecated 235 auto quota quick 236 auto quick metadata 237 auto quick acl +238 auto quick metadata ioctl diff --git a/src/Makefile b/src/Makefile index 976133d..e878cff 100644 --- a/src/Makefile +++ b/src/Makefile @@ -15,7 +15,8 @@ TARGETS = dirstress fill fill2 getpagesize holes lstat64 \ LINUX_TARGETS = xfsctl bstat t_mtab getdevicesize preallo_rw_pattern_reader \ preallo_rw_pattern_writer ftrunc trunc fs_perms testx looptest \ locktest unwritten_mmap bulkstat_unlink_test t_stripealign \ - bulkstat_unlink_test_modified t_dir_offset t_futimens t_immutable + bulkstat_unlink_test_modified t_dir_offset t_futimens t_immutable \ + stale_handle SUBDIRS = -- 1.7.1 From SRS0+m325+17+fromorbit.com=dave@internode.on.net Wed Jun 16 21:44:09 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5H2i9IB153579 for ; Wed, 16 Jun 2010 21:44:09 -0500 X-ASG-Debug-ID: 1276742804-201900e60000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 320A914E67E2 for ; Wed, 16 Jun 2010 19:46:44 -0700 (PDT) Received: from mail.internode.on.net (bld-mail18.adl2.internode.on.net [150.101.137.103]) by cuda.sgi.com with ESMTP id 7DLioufLVU9xGF4Z for ; Wed, 16 Jun 2010 19:46:44 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28078465-1927428 for ; Thu, 17 Jun 2010 12:16:43 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OP57p-0006OH-Vy for xfs@oss.sgi.com; Thu, 17 Jun 2010 12:46:42 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OP57o-0002ZF-7k for xfs@oss.sgi.com; Thu, 17 Jun 2010 12:46:40 +1000 From: Dave Chinner To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH] xfsqa: test open_by_handle() on unlinked and freed inode clusters V2 Subject: [PATCH] xfsqa: test open_by_handle() on unlinked and freed inode clusters V2 Date: Thu, 17 Jun 2010 12:46:40 +1000 Message-Id: <1276742800-9845-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 X-Barracuda-Connect: bld-mail18.adl2.internode.on.net[150.101.137.103] X-Barracuda-Start-Time: 1276742806 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32730 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner When Christoph and I were discussing bulkstat coherency on IRC, we realised that inode lookup from bulkstat was not actually looking up the inode allocation btree in xfs_imap() before reading the inode buffer from disk in xfs_iread(). Bulkstat uses the same lookup mechanism as handle validation to avoid shutting down the filesystem if inode numbers that point to non-inode buffers (i.e. invalid) are passed in the handle. The problem with this is that when we delete inodes from disk and we remove the inode chunk (i.e. deallocate inodes) we mark both the inodes in memory and the cluster buffer as stale, thereby preventing it from being written back to disk. The result of this is that some number of inodes remain on disk looking like allocated, in use inodes (i.e. di_mode is not zero). Hence if we get a cold cache lookup from a stale handle that references such an inode, we can read the inode off disk even though it has been deleted because we don't check if the inode is allocated or not. If the inode chunk has not been overwritten, then the inode read will succeed and the handle-to-dentry conversion will not error out like it is supposed to. The result is that stale NFS filehandles and open_by_handle() will succeed incorrectly on unlinked files for cold cache lookups. This is a bug that has been present ever since the inode chunk deletion code was implemented. This test exercises the problem and documents the hoops you have to jump through to reproduce it. Version 2: o suppress mkfs output that was unnoticed due to failure noise o fix exit value so test reports success correctly (e.g. when run with MOUNT_OPTIONS="-o ikeep") Signed-off-by: Dave Chinner --- 238 | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 238.out | 2 ++ group | 1 + src/Makefile | 3 ++- 4 files changed, 62 insertions(+), 1 deletions(-) create mode 100755 238 create mode 100644 238.out diff --git a/238 b/238 new file mode 100755 index 0000000..67146b6 --- /dev/null +++ b/238 @@ -0,0 +1,57 @@ +#! /bin/bash +# FS QA Test No. $id +# +# what am I here for? +# +#----------------------------------------------------------------------- +# Copyright (c) 2010 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 +#----------------------------------------------------------------------- +# +# creator +owner=dchinner@redhat.com + +seq=`basename $0` +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 + +# Modify as appropriate. +_supported_fs xfs +_supported_os Linux +_require_scratch + +echo "Silence is golden" + +_scratch_mkfs > /dev/null 2>&1 +_scratch_mount > /dev/null 2>&1 +src/stale_handle $SCRATCH_MNT +status=$? +exit diff --git a/238.out b/238.out new file mode 100644 index 0000000..9d5b672 --- /dev/null +++ b/238.out @@ -0,0 +1,2 @@ +QA output created by 238 +Silence is golden diff --git a/group b/group index 5c2d252..ee835d6 100644 --- a/group +++ b/group @@ -351,3 +351,4 @@ deprecated 235 auto quota quick 236 auto quick metadata 237 auto quick acl +238 auto quick metadata ioctl diff --git a/src/Makefile b/src/Makefile index 976133d..e878cff 100644 --- a/src/Makefile +++ b/src/Makefile @@ -15,7 +15,8 @@ TARGETS = dirstress fill fill2 getpagesize holes lstat64 \ LINUX_TARGETS = xfsctl bstat t_mtab getdevicesize preallo_rw_pattern_reader \ preallo_rw_pattern_writer ftrunc trunc fs_perms testx looptest \ locktest unwritten_mmap bulkstat_unlink_test t_stripealign \ - bulkstat_unlink_test_modified t_dir_offset t_futimens t_immutable + bulkstat_unlink_test_modified t_dir_offset t_futimens t_immutable \ + stale_handle SUBDIRS = -- 1.7.1 From BATV+737fdaa9b9dd55420eee+2489+infradead.org+hch@bombadil.srs.infradead.org Thu Jun 17 00:54:25 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5H5sM8Z163002 for ; Thu, 17 Jun 2010 00:54:25 -0500 X-ASG-Debug-ID: 1276754442-58bf00c40000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id E7ED1B0B68F for ; Wed, 16 Jun 2010 23:00:42 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id YduyykBGx7GYo9Sp for ; Wed, 16 Jun 2010 23:00:42 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OP85x-00049g-VB; Thu, 17 Jun 2010 05:56:57 +0000 Date: Thu, 17 Jun 2010 01:56:57 -0400 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfsqa: test open_by_handle() on unlinked and freed inode clusters V2 Subject: Re: [PATCH] xfsqa: test open_by_handle() on unlinked and freed inode clusters V2 Message-ID: <20100617055657.GA5208@infradead.org> References: <1276742800-9845-1-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1276742800-9845-1-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1276754442 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean The patch is missing the new stale_handle.c file. From SRS0+m325+17+fromorbit.com=dave@internode.on.net Thu Jun 17 01:35:20 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,J_CHICKENPOX_43, J_CHICKENPOX_45,J_CHICKENPOX_75 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5H6ZJlY164796 for ; Thu, 17 Jun 2010 01:35:20 -0500 X-ASG-Debug-ID: 1276756897-58b9031a0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 51D56B0ACA1 for ; Wed, 16 Jun 2010 23:41:37 -0700 (PDT) Received: from mail.internode.on.net (bld-mail16.adl2.internode.on.net [150.101.137.101]) by cuda.sgi.com with ESMTP id VABwg2OOYxvTZCwe for ; Wed, 16 Jun 2010 23:41:37 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28200299-1927428 for ; Thu, 17 Jun 2010 16:07:53 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OP8jN-0006ZD-SU for xfs@oss.sgi.com; Thu, 17 Jun 2010 16:37:41 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OP8jM-0003DT-0u for xfs@oss.sgi.com; Thu, 17 Jun 2010 16:37:40 +1000 From: Dave Chinner To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH] xfsqa: test open_by_handle() on unlinked and freed inode clusters V2 Subject: [PATCH] xfsqa: test open_by_handle() on unlinked and freed inode clusters V2 Date: Thu, 17 Jun 2010 16:37:39 +1000 Message-Id: <1276756659-12338-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 X-Barracuda-Connect: bld-mail16.adl2.internode.on.net[150.101.137.101] X-Barracuda-Start-Time: 1276756899 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32747 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner When Christoph and I were discussing bulkstat coherency on IRC, we realised that inode lookup from bulkstat was not actually looking up the inode allocation btree in xfs_imap() before reading the inode buffer from disk in xfs_iread(). Bulkstat uses the same lookup mechanism as handle validation to avoid shutting down the filesystem if inode numbers that point to non-inode buffers (i.e. invalid) are passed in the handle. The problem with this is that when we delete inodes from disk and we remove the inode chunk (i.e. deallocate inodes) we mark both the inodes in memory and the cluster buffer as stale, thereby preventing it from being written back to disk. The result of this is that some number of inodes remain on disk looking like allocated, in use inodes (i.e. di_mode is not zero). Hence if we get a cold cache lookup from a stale handle that references such an inode, we can read the inode off disk even though it has been deleted because we don't check if the inode is allocated or not. If the inode chunk has not been overwritten, then the inode read will succeed and the handle-to-dentry conversion will not error out like it is supposed to. The result is that stale NFS filehandles and open_by_handle() will succeed incorrectly on unlinked files for cold cache lookups. This is a bug that has been present ever since the inode chunk deletion code was implemented. This test exercises the problem and documents the hoops you have to jump through to reproduce it. Version 2: o suppress mkfs output that was unnoticed due to failure noise o fix exit value so test reports success correctly (e.g. when run with MOUNT_OPTIONS="-o ikeep") Signed-off-by: Dave Chinner --- 238 | 57 +++++++++++++++++++++ 238.out | 2 + group | 1 + src/Makefile | 3 +- src/stale_handle.c | 140 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 202 insertions(+), 1 deletions(-) create mode 100755 238 create mode 100644 238.out create mode 100644 src/stale_handle.c diff --git a/238 b/238 new file mode 100755 index 0000000..4daca89 --- /dev/null +++ b/238 @@ -0,0 +1,57 @@ +#! /bin/bash +# FS QA Test No. 238 +# +# Check stale handles pointing to unlinked files are detected correctly +# +#----------------------------------------------------------------------- +# Copyright (c) 2010 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 +#----------------------------------------------------------------------- +# +# creator +owner=dchinner@redhat.com + +seq=`basename $0` +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 + +# Modify as appropriate. +_supported_fs xfs +_supported_os Linux +_require_scratch + +echo "Silence is golden" + +_scratch_mkfs > /dev/null 2>&1 +_scratch_mount > /dev/null 2>&1 +src/stale_handle $SCRATCH_MNT +status=$? +exit diff --git a/238.out b/238.out new file mode 100644 index 0000000..9d5b672 --- /dev/null +++ b/238.out @@ -0,0 +1,2 @@ +QA output created by 238 +Silence is golden diff --git a/group b/group index 5c2d252..ee835d6 100644 --- a/group +++ b/group @@ -351,3 +351,4 @@ deprecated 235 auto quota quick 236 auto quick metadata 237 auto quick acl +238 auto quick metadata ioctl diff --git a/src/Makefile b/src/Makefile index 976133d..e878cff 100644 --- a/src/Makefile +++ b/src/Makefile @@ -15,7 +15,8 @@ TARGETS = dirstress fill fill2 getpagesize holes lstat64 \ LINUX_TARGETS = xfsctl bstat t_mtab getdevicesize preallo_rw_pattern_reader \ preallo_rw_pattern_writer ftrunc trunc fs_perms testx looptest \ locktest unwritten_mmap bulkstat_unlink_test t_stripealign \ - bulkstat_unlink_test_modified t_dir_offset t_futimens t_immutable + bulkstat_unlink_test_modified t_dir_offset t_futimens t_immutable \ + stale_handle SUBDIRS = diff --git a/src/stale_handle.c b/src/stale_handle.c new file mode 100644 index 0000000..9b692f3 --- /dev/null +++ b/src/stale_handle.c @@ -0,0 +1,140 @@ +/* + * stale_handle.c - attempt to create a stale handle and open it + * + * Copyright (C) 2010 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; 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. + */ + +#define TEST_UTIME + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define NUMFILES 1024 +int main(int argc, char **argv) +{ + int i; + int fd; + int ret; + int failed = 0; + char fname[MAXPATHLEN]; + char *test_dir; + void *handle[NUMFILES]; + size_t hlen[NUMFILES]; + char fshandle[256]; + size_t fshlen; + struct stat st; + + + if (argc != 2) { + fprintf(stderr, "usage: stale_handle test_dir\n"); + return EXIT_FAILURE; + } + + test_dir = argv[1]; + if (stat(test_dir, &st) != 0) { + perror("stat"); + return EXIT_FAILURE; + } + + ret = path_to_fshandle(test_dir, (void **)fshandle, &fshlen); + if (ret < 0) { + perror("path_to_fshandle"); + return EXIT_FAILURE; + } + + /* + * create a large number of files to force allocation of new inode + * chunks on disk. + */ + for (i=0; i < NUMFILES; i++) { + sprintf(fname, "%s/file%06d", test_dir, i); + fd = open(fname, O_RDWR | O_CREAT | O_TRUNC, 0644); + if (fd < 0) { + printf("Warning (%s,%d), open(%s) failed.\n", __FILE__, __LINE__, fname); + perror(fname); + return EXIT_FAILURE; + } + close(fd); + } + + /* sync to get the new inodes to hit the disk */ + sync(); + + /* create the handles */ + for (i=0; i < NUMFILES; i++) { + sprintf(fname, "%s/file%06d", test_dir, i); + ret = path_to_handle(fname, &handle[i], &hlen[i]); + if (ret < 0) { + perror("path_to_handle"); + return EXIT_FAILURE; + } + } + + /* unlink the files */ + for (i=0; i < NUMFILES; i++) { + sprintf(fname, "%s/file%06d", test_dir, i); + ret = unlink(fname); + if (ret < 0) { + perror("unlink"); + return EXIT_FAILURE; + } + } + + /* sync to get log forced for unlink transactions to hit the disk */ + sync(); + + /* sync once more FTW */ + sync(); + + /* + * now drop the caches so that unlinked inodes are reclaimed and + * buftarg page cache is emptied so that the inode cluster has to be + * fetched from disk again for the open_by_handle() call. + */ + system("echo 3 > /proc/sys/vm/drop_caches"); + + /* + * now try to open the files by the stored handles. Expecting ENOENT + * for all of them. + */ + for (i=0; i < NUMFILES; i++) { + errno = 0; + fd = open_by_handle(handle[i], hlen[i], O_RDWR); + if (fd < 0 && errno == ENOENT) { + free_handle(handle[i], hlen[i]); + continue; + } + if (ret >= 0) { + printf("open_by_handle(%d) opened an unlinked file!\n", i); + close(fd); + } else + printf("open_by_handle(%d) returned %d incorrectly on an unlinked file!\n", i, errno); + free_handle(handle[i], hlen[i]); + failed++; + } + if (failed) + return EXIT_FAILURE; + return EXIT_SUCCESS; +} -- 1.7.1 From SRS0+1LKB+17+fromorbit.com=david@internode.on.net Thu Jun 17 01:36:06 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5H6a5HS164825 for ; Thu, 17 Jun 2010 01:36:06 -0500 X-ASG-Debug-ID: 1276756721-79fb00880000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 3E98E14EFADF for ; Wed, 16 Jun 2010 23:38:41 -0700 (PDT) Received: from mail.internode.on.net (bld-mail12.adl6.internode.on.net [150.101.137.97]) by cuda.sgi.com with ESMTP id h24tc4LiZKmr0Jtw for ; Wed, 16 Jun 2010 23:38:41 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28247413-1927428 for multiple; Thu, 17 Jun 2010 16:08:40 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OP8kJ-0006ZL-EW; Thu, 17 Jun 2010 16:38:39 +1000 Date: Thu, 17 Jun 2010 16:38:39 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfsqa: test open_by_handle() on unlinked and freed inode clusters V2 Subject: Re: [PATCH] xfsqa: test open_by_handle() on unlinked and freed inode clusters V2 Message-ID: <20100617063839.GW6590@dastard> References: <1276742800-9845-1-git-send-email-david@fromorbit.com> <20100617055657.GA5208@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100617055657.GA5208@infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail12.adl6.internode.on.net[150.101.137.97] X-Barracuda-Start-Time: 1276756723 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0001 1.0000 -2.0205 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32746 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu, Jun 17, 2010 at 01:56:57AM -0400, Christoph Hellwig wrote: > The patch is missing the new stale_handle.c file. Ah, sorry - PEBKAC. Just resent it. Cheers, Dave. -- Dave Chinner david@fromorbit.com From michael.monnerie@is.it-management.at Thu Jun 17 03:04:52 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5H84ppk167719 for ; Thu, 17 Jun 2010 03:04:52 -0500 X-ASG-Debug-ID: 1276762047-7d2501940000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 7444C14F02EC for ; Thu, 17 Jun 2010 01:07:28 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id Fk7MpH9kERTkFWDB for ; Thu, 17 Jun 2010 01:07:28 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id C217317A for ; Thu, 17 Jun 2010 10:07:26 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id 13A5B83C829 for ; Thu, 17 Jun 2010 10:07:14 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfsqa: test open_by_handle() on unlinked and freed inode clusters V2 Subject: Re: [PATCH] xfsqa: test open_by_handle() on unlinked and freed inode clusters V2 Date: Thu, 17 Jun 2010 10:07:25 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) References: <1276756659-12338-1-git-send-email-david@fromorbit.com> In-Reply-To: <1276756659-12338-1-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart3473232.CNg3zXGhNV"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201006171007.26040@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1276762048 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32752 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart3473232.CNg3zXGhNV Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable On Donnerstag, 17. Juni 2010 Dave Chinner wrote: > Hence if we get a cold cache lookup from a stale handle that > references such an inode, we can read the inode off disk even though > it has been deleted because we don't check if the inode is allocated > or not. If the inode chunk has not been overwritten, then the inode > read will succeed and the handle-to-dentry conversion will not error > out like it is supposed to. The result is that stale NFS filehandles > and open_by_handle() will succeed incorrectly on unlinked files for > cold cache lookups. =20 Wouldn't that qualify as a security problem and be handled as such?=20 There should be back ports for "long term support" kernels of security- sensitive people, and so on. =2D-=20 mit freundlichen Gr=FCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=E4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart3473232.CNg3zXGhNV Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwZ170ACgkQzhSR9xwSCbTrmQCgmkB3M3EZ0nDTth3DEykv3QpG /e8An3CQvLR8hu4vLJGHJqLcFgDRmHne =ZQA0 -----END PGP SIGNATURE----- --nextPart3473232.CNg3zXGhNV-- From tao.ma@oracle.com Thu Jun 17 03:53:30 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_66, UNPARSEABLE_RELAY autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5H8rTrZ169512 for ; Thu, 17 Jun 2010 03:53:30 -0500 X-ASG-Debug-ID: 1276765189-6a87007a0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from rcsinet10.oracle.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 90DD6159AF2F for ; Thu, 17 Jun 2010 01:59:49 -0700 (PDT) Received: from rcsinet10.oracle.com (rcsinet10.oracle.com [148.87.113.121]) by cuda.sgi.com with ESMTP id msaN9xgmEyHX032G for ; Thu, 17 Jun 2010 01:59:49 -0700 (PDT) Received: from acsinet15.oracle.com (acsinet15.oracle.com [141.146.126.227]) by rcsinet10.oracle.com (Switch-3.4.2/Switch-3.4.1) with ESMTP id o5H8tapp019744 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 17 Jun 2010 08:55:38 GMT Received: from acsmt354.oracle.com (acsmt354.oracle.com [141.146.40.154]) by acsinet15.oracle.com (Switch-3.4.2/Switch-3.4.1) with ESMTP id o5H8XSi9007497; Thu, 17 Jun 2010 08:55:30 GMT Received: from abhmt021.oracle.com by acsmt354.oracle.com with ESMTP id 333610241276764819; Thu, 17 Jun 2010 01:53:39 -0700 Received: from localhost.localdomain (/10.182.120.191) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 17 Jun 2010 01:53:38 -0700 From: Tao Ma To: xfs@oss.sgi.com Cc: linux-kernel@vger.kernel.org, Tao Ma , Dave Chinner , Alex Elder , Christoph Hellwig , Eric Sandeen X-ASG-Orig-Subj: Re: [PATCH v2] xfs: Make fiemap works with sparse file. Subject: Re: [PATCH v2] xfs: Make fiemap works with sparse file. Date: Thu, 17 Jun 2010 16:53:19 +0800 Message-Id: <1276764799-4837-1-git-send-email-tao.ma@oracle.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <20100614122912.GD6590@dastard> References: <20100614122912.GD6590@dastard> X-Auth-Type: Internal IP X-Source-IP: acsinet15.oracle.com [141.146.126.227] X-CT-RefId: str=0001.0A090202.4C19E316.0040:SCFMA922111,ss=1,fgs=0 X-Barracuda-Connect: rcsinet10.oracle.com[148.87.113.121] X-Barracuda-Start-Time: 1276765190 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32755 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hi Dave, On 06/14/2010 08:29 PM, Dave Chinner wrote: > I just had a thought - if you want to avoid holes being reported to > fiemap, then add a BMV_IF_NO_HOLES flag to xfs_getbmap() and skip > holes in the mappin gloop when this flag is set. That will make > fiemap fill in the full number of extents without hacking the > extent count... Here is the updated one. I have used BVM_IF_NO_HOLES in xfs_getbmap to skip increasing index 'cur_ext'. It is a bit ugly, see my commit log. I guess maybe we can add another flag in xfs_bmapi so that it don't even give us the holes? Regards, Tao >From cee1765ffd3e2b003b837666b4620b5107ed9ddd Mon Sep 17 00:00:00 2001 From: Tao Ma Date: Thu, 17 Jun 2010 16:14:22 +0800 Subject: [PATCH v3] xfs: Make fiemap works with sparse file. In xfs_vn_fiemap, we set bvm_count to fi_extent_max + 1 and want to return fi_extent_max extents, but actually it won't work for a sparse file. The reason is that in xfs_getbmap we will calculate holes and set it in 'out', while out is malloced by bmv_count(fi_extent_max+1) which didn't consider holes. So in the worst case, if 'out' vector looks like [hole, extent, hole, extent, hole, ... hole, extent, hole], we will only return half of fi_extent_max extents. This patch add a new parameter BMV_IF_NO_HOLES for bvm_iflags. So with this flags, we don't use our 'out' in xfs_getbmap for a hole. The solution is a bit ugly by just don't increasing index of 'out' vector. I felt that it is not easy to skip it at the very beginning since we have the complicated check and some function like xfs_getbmapx_fix_eof_hole to adjust 'out'. Cc: Dave Chinner Cc: Alex Elder Cc: Christoph Hellwig Cc: Eric Sandeen Signed-off-by: Tao Ma --- fs/xfs/linux-2.6/xfs_iops.c | 2 +- fs/xfs/xfs_bmap.c | 14 +++++++++++++- fs/xfs/xfs_fs.h | 4 +++- 3 files changed, 17 insertions(+), 3 deletions(-) diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c index 9c8019c..505d5c0 100644 --- a/fs/xfs/linux-2.6/xfs_iops.c +++ b/fs/xfs/linux-2.6/xfs_iops.c @@ -677,7 +677,7 @@ xfs_vn_fiemap( fieinfo->fi_extents_max + 1; bm.bmv_count = min_t(__s32, bm.bmv_count, (PAGE_SIZE * 16 / sizeof(struct getbmapx))); - bm.bmv_iflags = BMV_IF_PREALLOC; + bm.bmv_iflags = BMV_IF_PREALLOC | BMV_IF_NO_HOLES; if (fieinfo->fi_flags & FIEMAP_FLAG_XATTR) bm.bmv_iflags |= BMV_IF_ATTRFORK; if (!(fieinfo->fi_flags & FIEMAP_FLAG_SYNC)) diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c index 99587de..d49107d 100644 --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -5744,12 +5744,24 @@ xfs_getbmap( map[i].br_startblock)) goto out_free_map; - nexleft--; bmv->bmv_offset = out[cur_ext].bmv_offset + out[cur_ext].bmv_length; bmv->bmv_length = max_t(__int64_t, 0, bmvend - bmv->bmv_offset); + + /* + * In case we don't want to return the hole, + * don't increase cur_ext so that we can reuse + * it in the next loop. + */ + if ((iflags & BMV_IF_NO_HOLES) && + out[cur_ext].bmv_block == -1LL) { + memset(&out[cur_ext], 0, sizeof(out[cur_ext])); + continue; + } + + nexleft--; bmv->bmv_entries++; cur_ext++; } diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h index 7cf7220..87c2e9d 100644 --- a/fs/xfs/xfs_fs.h +++ b/fs/xfs/xfs_fs.h @@ -114,8 +114,10 @@ struct getbmapx { #define BMV_IF_NO_DMAPI_READ 0x2 /* Do not generate DMAPI read event */ #define BMV_IF_PREALLOC 0x4 /* rtn status BMV_OF_PREALLOC if req */ #define BMV_IF_DELALLOC 0x8 /* rtn status BMV_OF_DELALLOC if req */ +#define BMV_IF_NO_HOLES 0x10 /* Do not return holes */ #define BMV_IF_VALID \ - (BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC|BMV_IF_DELALLOC) + (BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC| \ + BMV_IF_DELALLOC|BMV_IF_NO_HOLES) /* bmv_oflags values - returned for each non-header segment */ #define BMV_OF_PREALLOC 0x1 /* segment = unwritten pre-allocation */ -- 1.5.5 From BATV+737fdaa9b9dd55420eee+2489+infradead.org+hch@bombadil.srs.infradead.org Thu Jun 17 06:38:18 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5HBcFQp175000 for ; Thu, 17 Jun 2010 06:38:18 -0500 X-ASG-Debug-ID: 1276774853-077300870000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 898D914EDD98; Thu, 17 Jun 2010 04:40:53 -0700 (PDT) Received: from bombadil.infradead.org ([18.85.46.34]) by cuda.sgi.com with ESMTP id iiZhTeovHVrb185X; Thu, 17 Jun 2010 04:40:53 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OPDSl-0006cv-5m; Thu, 17 Jun 2010 11:40:51 +0000 Date: Thu, 17 Jun 2010 07:40:51 -0400 From: Christoph Hellwig To: Dan Rosenberg Cc: Christoph Hellwig , security@kernel.org, aelder@sgi.com, Eugene Teo , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [Security] XFS swapext ioctl minor security issues Subject: Re: [Security] XFS swapext ioctl minor security issues Message-ID: <20100617114051.GA13118@infradead.org> References: <20100616121142.GA22317@infradead.org> <20100616133433.GA16437@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[18.85.46.34] X-Barracuda-Start-Time: 1276774853 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed, Jun 16, 2010 at 09:57:35AM -0400, Dan Rosenberg wrote: > I removed the part of the patch dealing with suid/sgid bits - your > reasoning seems good, we clearly don't want to just drop the suid/sgid > bits. ?I was just trying to point out the case where the caller is not > the owner and has write access to the file; since in the ordinary case > writing to that file would result in dropping the suid bit, I thought > this ioctl should try to replicate that behavior. Looks good, Reviewed-by: Christoph Hellwig Alex, can you push it to Linus ASAP? From thomas.forde@bergenofs.no Thu Jun 17 08:15:56 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: **** X-Spam-Status: No, score=4.1 required=5.0 tests=BAYES_50,HTML_MESSAGE, MIME_8BIT_HEADER autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5HDFte5177907 for ; Thu, 17 Jun 2010 08:15:56 -0500 X-ASG-Debug-ID: 1276780935-13a101a20000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from dkcphmx22.softcom.dk (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 322B6159BC6A for ; Thu, 17 Jun 2010 06:22:15 -0700 (PDT) Received: from dkcphmx22.softcom.dk (dkcphmx22.softcom.dk [213.150.41.59]) by cuda.sgi.com with ESMTP id GZQjUpDUgIpPneu3 for ; Thu, 17 Jun 2010 06:22:15 -0700 (PDT) Received: from 74.82-134-78.bkkb.no (82.134.78.74) by dkcphmx22.softcom.dk (envelope-from ) with ESMTP. tag msg.1276780709.62071.31020 (Processed in 1.292334 secs); 17 Jun 2010 13:18:30 -0000 X-SoftScan-Status: clean To: xfs@oss.sgi.com MIME-Version: 1.0 X-ASG-Orig-Subj: Help with XFS Subject: Help with XFS X-KeepSent: 4967B99D:609CC213-C1257745:0048E646; type=4; name=$KeepSent X-Mailer: Lotus Notes Release 8.5.1 FP3 May 24, 2010 Message-ID: From: =?ISO-8859-1?Q?Thomas_F=F8rde?= Date: Thu, 17 Jun 2010 15:18:26 +0200 X-MIMETrack: Serialize by Router on LNBOS01/BOS(Release 8.5.1|September 28, 2009) at 17.06.2010 15:18:28, Serialize complete at 17.06.2010 15:18:28 Content-Type: multipart/alternative; boundary="=_alternative 004919A2C1257745_=" X-Barracuda-Connect: dkcphmx22.softcom.dk[213.150.41.59] X-Barracuda-Start-Time: 1276780937 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32773 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean This is a multipart message in MIME format. --=_alternative 004919A2C1257745_= Content-Type: text/plain; charset="US-ASCII" during the other day our XFS filesystem had a unexpected shutdown according to logs. un 16 15:48:42 strmng04 kernel: 0x0: 00 00 c0 46 01 00 c0 46 77 02 c0 46 fe 7d 00 40 Jun 16 15:48:42 strmng04 kernel: Filesystem "sdf1": XFS internal error xfs_da_do_buf(2) at line 2276 of file /home/buildcentos/rpmbuild/BUILD/xfs-kmod-0.4/_kmod_build_smp/xfs_da_bt$ Jun 16 15:48:42 strmng04 kernel: Jun 16 15:48:42 strmng04 kernel: Call Trace:{:xfs:xfs_corruption_error+236} {:xfs:kmem_zone_alloc+66} Jun 16 15:48:42 strmng04 kernel: {:xfs:xfs_da_do_buf+1335} {:xfs:xfs_da_read_buf+21} Jun 16 15:48:42 strmng04 kernel: {:xfs:xfs_da_read_buf+21} {:xfs:xfs_dir2_block_lookup_int+71} Jun 16 15:48:42 strmng04 kernel: {:xfs:xfs_dir2_block_lookup_int+71} Jun 16 15:48:42 strmng04 kernel: {:xfs:xfs_dir2_block_lookup+19} {:xfs:xfs_dir2_lookup+200} Jun 16 15:48:42 strmng04 kernel: {__wake_up+54} {__up_read+16} Jun 16 15:48:42 strmng04 kernel: {:xfs:xfs_dir_lookup_int+53} {:xfs:xfs_lookup+74} Jun 16 15:48:42 strmng04 kernel: {:xfs:linvfs_lookup+48} {__lookup_hash+263} Jun 16 15:48:42 strmng04 kernel: {lookup_one_len+94} {:nfsd:nfsd_lookup+936} Jun 16 15:48:42 strmng04 kernel: {:nfsd:nfsd3_proc_lookup+198} {:nfsd:nfsd_dispatch+219} Jun 16 15:48:42 strmng04 kernel: {:sunrpc:svc_process+1227} {default_wake_function+0} Jun 16 15:48:42 strmng04 kernel: {:nfsd:nfsd+0} {:nfsd:nfsd+568} Jun 16 15:48:42 strmng04 kernel: {schedule_tail+55} {child_rip+8} Jun 16 15:48:42 strmng04 kernel: {:nfsd:nfsd+0} {:nfsd:nfsd+0} Jun 16 15:48:42 strmng04 kernel: {child_rip+0} many of those. and at the end Jun 16 15:50:13 strmng04 kernel: xfs_force_shutdown(sdf1,0x8) called from line 4092 of file /home/buildcentos/rpmbuild/BUILD/xfs-kmod-0.4/_kmod_build_smp/xfs_bmap.c. Return address = 0xffffffffa01f7fb4 Jun 16 15:50:13 strmng04 kernel: Filesystem "sdf1": Corruption of in-memory data detected. Shutting down filesystem: sdf1 Jun 16 15:50:13 strmng04 kernel: Please umount the filesystem, and rectify the problem(s) i have run xfs_check without any verbos information given i have run xfs_repair without any information errors fixed. when i try to mount the XFS filesystem of 10TB, my 7.8 TB of data is now gone. before: /dev/sdf1 10527858560 8801101708 1726756852 84% /D5 after: /dev/sdf1 10527858560 528 10527858032 1% /D5 help, where did my data go, and how can i get it back. --=_alternative 004919A2C1257745_= Content-Type: text/html; charset="US-ASCII" during the other day our XFS filesystem had a unexpected shutdown according to logs.

un 16 15:48:42 strmng04 kernel: 0x0: 00 00 c0 46 01 00 c0 46 77 02 c0 46 fe 7d 00 40
Jun 16 15:48:42 strmng04 kernel: Filesystem "sdf1": XFS internal error xfs_da_do_buf(2) at line 2276 of file /home/buildcentos/rpmbuild/BUILD/xfs-kmod-0.4/_kmod_build_smp/xfs_da_bt$
Jun 16 15:48:42 strmng04 kernel:
Jun 16 15:48:42 strmng04 kernel: Call Trace:<ffffffffa0211762>{:xfs:xfs_corruption_error+236} <ffffffffa023c7cc>{:xfs:kmem_zone_alloc+66}
Jun 16 15:48:42 strmng04 kernel:        <ffffffffa0202526>{:xfs:xfs_da_do_buf+1335} <ffffffffa0202653>{:xfs:xfs_da_read_buf+21}
Jun 16 15:48:42 strmng04 kernel:        <ffffffffa0202653>{:xfs:xfs_da_read_buf+21} <ffffffffa0207210>{:xfs:xfs_dir2_block_lookup_int+71}
Jun 16 15:48:42 strmng04 kernel:        <ffffffffa0207210>{:xfs:xfs_dir2_block_lookup_int+71}
Jun 16 15:48:42 strmng04 kernel:        <ffffffffa0207359>{:xfs:xfs_dir2_block_lookup+19} <ffffffffa0206457>{:xfs:xfs_dir2_lookup+200}
Jun 16 15:48:42 strmng04 kernel:        <ffffffff801347b0>{__wake_up+54} <ffffffff801ef3a1>{__up_read+16}
Jun 16 15:48:42 strmng04 kernel:        <ffffffffa0229d22>{:xfs:xfs_dir_lookup_int+53} <ffffffffa022e47d>{:xfs:xfs_lookup+74}
Jun 16 15:48:42 strmng04 kernel:        <ffffffffa02371e0>{:xfs:linvfs_lookup+48} <ffffffff80189fc5>{__lookup_hash+263}
Jun 16 15:48:42 strmng04 kernel:        <ffffffff8018a04f>{lookup_one_len+94} <ffffffffa03bd2bc>{:nfsd:nfsd_lookup+936}
Jun 16 15:48:42 strmng04 kernel:        <ffffffffa03c55fa>{:nfsd:nfsd3_proc_lookup+198} <ffffffffa03ba7dc>{:nfsd:nfsd_dispatch+219}
Jun 16 15:48:42 strmng04 kernel:        <ffffffffa03474ac>{:sunrpc:svc_process+1227} <ffffffff80134709>{default_wake_function+0}
Jun 16 15:48:42 strmng04 kernel:        <ffffffffa03ba31b>{:nfsd:nfsd+0} <ffffffffa03ba553>{:nfsd:nfsd+568}
Jun 16 15:48:42 strmng04 kernel:        <ffffffff80133470>{schedule_tail+55} <ffffffff80110fd3>{child_rip+8}
Jun 16 15:48:42 strmng04 kernel:        <ffffffffa03ba31b>{:nfsd:nfsd+0} <ffffffffa03ba31b>{:nfsd:nfsd+0}
Jun 16 15:48:42 strmng04 kernel:        <ffffffff80110fcb>{child_rip+0}

many of those. and at the end

Jun 16 15:50:13 strmng04 kernel: xfs_force_shutdown(sdf1,0x8) called from line 4092 of file /home/buildcentos/rpmbuild/BUILD/xfs-kmod-0.4/_kmod_build_smp/xfs_bmap.c.  Return address
 = 0xffffffffa01f7fb4
Jun 16 15:50:13 strmng04 kernel: Filesystem "sdf1": Corruption of in-memory data detected.  Shutting down filesystem: sdf1
Jun 16 15:50:13 strmng04 kernel: Please umount the filesystem, and rectify the problem(s)


i have run xfs_check without any verbos information given
i have run xfs_repair without any information errors fixed.

when i try to mount the XFS filesystem of 10TB, my 7.8 TB of data is now gone.

before:                /dev/sdf1            10527858560 8801101708 1726756852  84% /D5
after:                /dev/sdf1            10527858560       528 10527858032   1% /D5

help, where did my data go, and how can i get it back. --=_alternative 004919A2C1257745_=-- From michael.monnerie@is.it-management.at Thu Jun 17 10:12:49 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5HFCmei181517 for ; Thu, 17 Jun 2010 10:12:49 -0500 X-ASG-Debug-ID: 1276787725-2d9603830000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id EAFE51E1062B for ; Thu, 17 Jun 2010 08:15:25 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id XkXMfbFA1G5d1pau for ; Thu, 17 Jun 2010 08:15:25 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id 9DB9017A for ; Thu, 17 Jun 2010 17:15:23 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id 650BD83C829 for ; Thu, 17 Jun 2010 17:15:10 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS Date: Thu, 17 Jun 2010 17:15:22 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) References: In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart10146408.0gHbBgKp89"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201006171715.22933@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1276787725 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0006 1.0000 -2.0169 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32780 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart10146408.0gHbBgKp89 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable On Donnerstag, 17. Juni 2010 Thomas F=C3=B8rde wrote: > when i try to mount the XFS filesystem of 10TB, my 7.8 TB of data is > now gone. =20 Do you have any logs in /var/log/warn about errors before that crash? How long had that machine been up? What kernel version? How many files/dirs have there been? I'm not a dev, but I guess running xfs_metadump, zipping the outcome and=20 putting it on a website would be a good preparation. =2D-=20 mit freundlichen Gr=C3=BCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=C3=A4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart10146408.0gHbBgKp89 Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwaPAoACgkQzhSR9xwSCbTZNwCeN2NaJIPsZ0OTfb57SPhCJHeL ZI4AoJwBkxWWQMG4RQ5PXYVlKJG+49bF =h4JM -----END PGP SIGNATURE----- --nextPart10146408.0gHbBgKp89-- From SRS0+npZu+17+fromorbit.com=david@internode.on.net Thu Jun 17 17:49:01 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5HMn0gg195049 for ; Thu, 17 Jun 2010 17:49:01 -0500 X-ASG-Debug-ID: 1276815096-077503010000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 9905714F7378 for ; Thu, 17 Jun 2010 15:51:37 -0700 (PDT) Received: from mail.internode.on.net (bld-mail19.adl2.internode.on.net [150.101.137.104]) by cuda.sgi.com with ESMTP id zrBUGguGRmYcTuhe for ; Thu, 17 Jun 2010 15:51:37 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28181159-1927428 for multiple; Fri, 18 Jun 2010 08:21:31 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OPNvm-0007aK-37; Fri, 18 Jun 2010 08:51:30 +1000 Date: Fri, 18 Jun 2010 08:51:30 +1000 From: Dave Chinner To: Michael Monnerie Cc: xfs@oss.sgi.com, aelder@sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfsqa: test open_by_handle() on unlinked and freed inode clusters V2 Subject: Re: [PATCH] xfsqa: test open_by_handle() on unlinked and freed inode clusters V2 Message-ID: <20100617225130.GX6590@dastard> References: <1276756659-12338-1-git-send-email-david@fromorbit.com> <201006171007.26040@zmi.at> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201006171007.26040@zmi.at> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail19.adl2.internode.on.net[150.101.137.104] X-Barracuda-Start-Time: 1276815098 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32812 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu, Jun 17, 2010 at 10:07:25AM +0200, Michael Monnerie wrote: > On Donnerstag, 17. Juni 2010 Dave Chinner wrote: > > Hence if we get a cold cache lookup from a stale handle that > > references such an inode, we can read the inode off disk even though > > it has been deleted because we don't check if the inode is allocated > > or not. If the inode chunk has not been overwritten, then the inode > > read will succeed and the handle-to-dentry conversion will not error > > out like it is supposed to. The result is that stale NFS filehandles > > and open_by_handle() will succeed incorrectly on unlinked files for > > cold cache lookups. > > Wouldn't that qualify as a security problem and be handled as such? > There should be back ports for "long term support" kernels of security- > sensitive people, and so on. Probably. Alex, are you able to handle this side of things? Note that local open_by_handle() use is not really an issue - it requires root and if you have root you can run xfs_db or dd on the block device to get the same information. Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0+DNhk+17+fromorbit.com=david@internode.on.net Thu Jun 17 18:48:40 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5HNmdOk197530 for ; Thu, 17 Jun 2010 18:48:40 -0500 X-ASG-Debug-ID: 1276818676-583f005b0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 004CF14F7DCE for ; Thu, 17 Jun 2010 16:51:16 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id cSIVaneNMIdCSlTW for ; Thu, 17 Jun 2010 16:51:16 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28432305-1927428 for multiple; Fri, 18 Jun 2010 09:21:15 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OPOrZ-0007eg-OW; Fri, 18 Jun 2010 09:51:13 +1000 Date: Fri, 18 Jun 2010 09:51:13 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfs: avoid synchronous transaction in xfs_fs_write_inode Subject: Re: [PATCH] xfs: avoid synchronous transaction in xfs_fs_write_inode Message-ID: <20100617235113.GY6590@dastard> References: <20100608195905.GA577@infradead.org> <20100609072911.GI7869@dastard> <20100615112051.GA25064@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100615112051.GA25064@infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1276818678 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32816 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 15, 2010 at 07:20:51AM -0400, Christoph Hellwig wrote: > On Wed, Jun 09, 2010 at 05:29:11PM +1000, Dave Chinner wrote: > > All great - I attempted this myself - but it breaks bulkstat. See > > xfstest 183: > > I can't reproduce the failure. And then I don't think we should > prioritize bulkstate over metadata performance. The only major users > of bulkstat on XFS in the mainline kernel is xfsdump, and metadata > performance during normal loads is a lot more important. And the > difference when using LVM/MD will be even larger with this as barriers > are a lot more expensive there. > > What do you think about adding something like the patch below which > always makes bulkstat always use the iget version which doesn't show > this sort of problems. > > --- > > From: Christoph Hellwig > Subject: xfs: always use iget in bulkstat > > The non-coherent bulkstat versionsthat look directly at the inode > buffers causes various problems with performance optimizations that > make increased use of just logging inodes. This patch makes bulkstat > always use iget, which should be fast enough for normal use with the > radix-tree based inode cache introduced a while ago. > > Signed-off-by: Christoph Hellwig An important note: I think this patch is necessary to avoid bulkstat returning unlinked inodes when cache thrashing is occurring. The current non-coherent lookup will incorrectly return unlinked inodes if the inode cluster is marked stale, reclaimed and turfed from memory due to an unlink and memory pressure between the ialloc btree lookup and the cluster buffer read. The only way to avoid this is to ensure that the ialloc btree lookup and the formatting of the inode into the user buffer is atomic, which means we have to do a coherent lookup that returns a locked into.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0+ffzZ+18+fromorbit.com=david@internode.on.net Thu Jun 17 19:45:02 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5I0j126199076 for ; Thu, 17 Jun 2010 19:45:02 -0500 X-ASG-Debug-ID: 1276822284-16c8024e0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 32E29159C2A6 for ; Thu, 17 Jun 2010 17:51:24 -0700 (PDT) Received: from mail.internode.on.net (bld-mail14.adl6.internode.on.net [150.101.137.99]) by cuda.sgi.com with ESMTP id hnhA1WPkVSSo7Svk for ; Thu, 17 Jun 2010 17:51:24 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28621490-1927428 for multiple; Fri, 18 Jun 2010 10:17:10 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OPPjg-0007hf-NW; Fri, 18 Jun 2010 10:47:08 +1000 Date: Fri, 18 Jun 2010 10:47:08 +1000 From: Dave Chinner To: Tao Ma Cc: xfs@oss.sgi.com, linux-kernel@vger.kernel.org, Alex Elder , Christoph Hellwig , Eric Sandeen X-ASG-Orig-Subj: Re: [PATCH v2] xfs: Make fiemap works with sparse file. Subject: Re: [PATCH v2] xfs: Make fiemap works with sparse file. Message-ID: <20100618004708.GZ6590@dastard> References: <20100614122912.GD6590@dastard> <1276764799-4837-1-git-send-email-tao.ma@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1276764799-4837-1-git-send-email-tao.ma@oracle.com> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail14.adl6.internode.on.net[150.101.137.99] X-Barracuda-Start-Time: 1276822286 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32819 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu, Jun 17, 2010 at 04:53:19PM +0800, Tao Ma wrote: > Hi Dave, > On 06/14/2010 08:29 PM, Dave Chinner wrote: > > I just had a thought - if you want to avoid holes being reported to > > fiemap, then add a BMV_IF_NO_HOLES flag to xfs_getbmap() and skip > > holes in the mappin gloop when this flag is set. That will make > > fiemap fill in the full number of extents without hacking the > > extent count... > Here is the updated one. I have used BVM_IF_NO_HOLES in xfs_getbmap > to skip increasing index 'cur_ext'. It is a bit ugly, see my commit > log. I guess maybe we can add another flag in xfs_bmapi so that it > don't even give us the holes? No need... > > Regards, > Tao > > From cee1765ffd3e2b003b837666b4620b5107ed9ddd Mon Sep 17 00:00:00 2001 > From: Tao Ma > Date: Thu, 17 Jun 2010 16:14:22 +0800 > Subject: [PATCH v3] xfs: Make fiemap works with sparse file. > > In xfs_vn_fiemap, we set bvm_count to fi_extent_max + 1 and want > to return fi_extent_max extents, but actually it won't work for > a sparse file. The reason is that in xfs_getbmap we will > calculate holes and set it in 'out', while out is malloced by > bmv_count(fi_extent_max+1) which didn't consider holes. So in the > worst case, if 'out' vector looks like > [hole, extent, hole, extent, hole, ... hole, extent, hole], > we will only return half of fi_extent_max extents. > > This patch add a new parameter BMV_IF_NO_HOLES for bvm_iflags. > So with this flags, we don't use our 'out' in xfs_getbmap for > a hole. The solution is a bit ugly by just don't increasing > index of 'out' vector. I felt that it is not easy to skip it > at the very beginning since we have the complicated check and > some function like xfs_getbmapx_fix_eof_hole to adjust 'out'. ... because I think we can safely skip xfs_getbmapx_fix_eof_hole() it only modifies the hole. Hence just adding a check after the attribute fork end check (which needs to detect a hole to terminate) should be fine: e.g something like: if (map[i].br_startblock == HOLESTARTBLOCK && whichfork == XFS_ATTR_FORK) { /* came to the end of attribute fork */ out[cur_ext].bmv_oflags |= BMV_OF_LAST; goto out_free_map; } + if (map[i].br_startblock == HOLESTARTBLOCK && + (iflags & BMV_IF_NO_HOLES)) { + memset(&out[cur_ext], 0, sizeof(out[cur_ext])); + continue; + } Should work and avoid the worst of the ugliness. The rest of the patch looks fine. Cheers, Dave. -- Dave Chinner david@fromorbit.com From tao.ma@oracle.com Thu Jun 17 21:26:13 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5I2QC2Z201775 for ; Thu, 17 Jun 2010 21:26:13 -0500 X-ASG-Debug-ID: 1276828357-556903870000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from rcsinet10.oracle.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id E353DB19EEF for ; Thu, 17 Jun 2010 19:32:37 -0700 (PDT) Received: from rcsinet10.oracle.com (rcsinet10.oracle.com [148.87.113.121]) by cuda.sgi.com with ESMTP id nmbZTZsCU0On2GO4 for ; Thu, 17 Jun 2010 19:32:37 -0700 (PDT) Received: from acsinet15.oracle.com (acsinet15.oracle.com [141.146.126.227]) by rcsinet10.oracle.com (Switch-3.4.2/Switch-3.4.1) with ESMTP id o5I2SZPT020931 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 18 Jun 2010 02:28:37 GMT Received: from acsmt354.oracle.com (acsmt354.oracle.com [141.146.40.154]) by acsinet15.oracle.com (Switch-3.4.2/Switch-3.4.1) with ESMTP id o5HKAFJV015495; Fri, 18 Jun 2010 02:28:34 GMT Received: from abhmt005.oracle.com by acsmt355.oracle.com with ESMTP id 336850721276828073; Thu, 17 Jun 2010 19:27:53 -0700 Received: from [10.182.120.191] (/10.182.120.191) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 17 Jun 2010 19:27:52 -0700 Message-ID: <4C1AD9A5.8010600@oracle.com> Date: Fri, 18 Jun 2010 10:27:49 +0800 From: Tao Ma User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.9) Gecko/20100317 Thunderbird/3.0.4 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com, linux-kernel@vger.kernel.org, Alex Elder , Christoph Hellwig , Eric Sandeen , "tao.ma" X-ASG-Orig-Subj: Re: [PATCH v2] xfs: Make fiemap works with sparse file. Subject: Re: [PATCH v2] xfs: Make fiemap works with sparse file. References: <20100614122912.GD6590@dastard> <1276764799-4837-1-git-send-email-tao.ma@oracle.com> <20100618004708.GZ6590@dastard> In-Reply-To: <20100618004708.GZ6590@dastard> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Auth-Type: Internal IP X-Source-IP: acsinet15.oracle.com [141.146.126.227] X-CT-RefId: str=0001.0A090209.4C1AD9D6.0099:SCFMA922111,ss=1,fgs=0 X-Barracuda-Connect: rcsinet10.oracle.com[148.87.113.121] X-Barracuda-Start-Time: 1276828357 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32825 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hi Dave, On 06/18/2010 08:47 AM, Dave Chinner wrote: > On Thu, Jun 17, 2010 at 04:53:19PM +0800, Tao Ma wrote: >> Hi Dave, >> On 06/14/2010 08:29 PM, Dave Chinner wrote: >>> I just had a thought - if you want to avoid holes being reported to >>> fiemap, then add a BMV_IF_NO_HOLES flag to xfs_getbmap() and skip >>> holes in the mappin gloop when this flag is set. That will make >>> fiemap fill in the full number of extents without hacking the >>> extent count... >> Here is the updated one. I have used BVM_IF_NO_HOLES in xfs_getbmap >> to skip increasing index 'cur_ext'. It is a bit ugly, see my commit >> log. I guess maybe we can add another flag in xfs_bmapi so that it >> don't even give us the holes? > > No need... I am fine with it. > >> >> Regards, >> Tao >> >> From cee1765ffd3e2b003b837666b4620b5107ed9ddd Mon Sep 17 00:00:00 2001 >> From: Tao Ma >> Date: Thu, 17 Jun 2010 16:14:22 +0800 >> Subject: [PATCH v3] xfs: Make fiemap works with sparse file. >> >> In xfs_vn_fiemap, we set bvm_count to fi_extent_max + 1 and want >> to return fi_extent_max extents, but actually it won't work for >> a sparse file. The reason is that in xfs_getbmap we will >> calculate holes and set it in 'out', while out is malloced by >> bmv_count(fi_extent_max+1) which didn't consider holes. So in the >> worst case, if 'out' vector looks like >> [hole, extent, hole, extent, hole, ... hole, extent, hole], >> we will only return half of fi_extent_max extents. >> >> This patch add a new parameter BMV_IF_NO_HOLES for bvm_iflags. >> So with this flags, we don't use our 'out' in xfs_getbmap for >> a hole. The solution is a bit ugly by just don't increasing >> index of 'out' vector. I felt that it is not easy to skip it >> at the very beginning since we have the complicated check and >> some function like xfs_getbmapx_fix_eof_hole to adjust 'out'. > > ... because I think we can safely skip xfs_getbmapx_fix_eof_hole() > it only modifies the hole. Hence just adding a check after the > attribute fork end check (which needs to detect a hole to terminate) > should be fine: e.g something like: > > if (map[i].br_startblock == HOLESTARTBLOCK&& > whichfork == XFS_ATTR_FORK) { > /* came to the end of attribute fork */ > out[cur_ext].bmv_oflags |= BMV_OF_LAST; > goto out_free_map; > } > + if (map[i].br_startblock == HOLESTARTBLOCK&& > + (iflags& BMV_IF_NO_HOLES)) { > + memset(&out[cur_ext], 0, sizeof(out[cur_ext])); > + continue; > + } > > Should work and avoid the worst of the ugliness. I am afraid it doesn't work, at least from my test. It enters a dead loop. I think the root cause is that your change doesn't update bmv_offset and bmv_length for a hole. So in the large loop, do { nmap = (nexleft > subnex) ? subnex : nexleft; error = xfs_bmapi(NULL, ip, XFS_BB_TO_FSBT(mp, bmv->bmv_offset), XFS_BB_TO_FSB(mp, bmv->bmv_length), bmapi_flags, NULL, 0, map, &nmap, NULL, NULL); if (error) goto out_free_map; ... } while (nmap && nexleft && bmv->bmv_length); We will dead loop there and we need xfs_getbmapx_fix_eof_hole to go out directly. Regards, Tao From SRS0+HoFB+18+fromorbit.com=david@internode.on.net Fri Jun 18 01:20:19 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5I6KJAM211085 for ; Fri, 18 Jun 2010 01:20:19 -0500 X-ASG-Debug-ID: 1276842175-6e9002a10000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 871413E2E66 for ; Thu, 17 Jun 2010 23:22:56 -0700 (PDT) Received: from mail.internode.on.net (bld-mail12.adl6.internode.on.net [150.101.137.97]) by cuda.sgi.com with ESMTP id L5nQGFa5lXbxtIOZ for ; Thu, 17 Jun 2010 23:22:56 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28385885-1927428 for multiple; Fri, 18 Jun 2010 15:52:27 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OPUy9-0007zH-PZ; Fri, 18 Jun 2010 16:22:25 +1000 Date: Fri, 18 Jun 2010 16:22:25 +1000 From: Dave Chinner To: Tao Ma Cc: xfs@oss.sgi.com, linux-kernel@vger.kernel.org, Alex Elder , Christoph Hellwig , Eric Sandeen X-ASG-Orig-Subj: Re: [PATCH v2] xfs: Make fiemap works with sparse file. Subject: Re: [PATCH v2] xfs: Make fiemap works with sparse file. Message-ID: <20100618062225.GC6590@dastard> References: <20100614122912.GD6590@dastard> <1276764799-4837-1-git-send-email-tao.ma@oracle.com> <20100618004708.GZ6590@dastard> <4C1AD9A5.8010600@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C1AD9A5.8010600@oracle.com> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail12.adl6.internode.on.net[150.101.137.97] X-Barracuda-Start-Time: 1276842177 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32842 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jun 18, 2010 at 10:27:49AM +0800, Tao Ma wrote: > >>This patch add a new parameter BMV_IF_NO_HOLES for bvm_iflags. > >>So with this flags, we don't use our 'out' in xfs_getbmap for > >>a hole. The solution is a bit ugly by just don't increasing > >>index of 'out' vector. I felt that it is not easy to skip it > >>at the very beginning since we have the complicated check and > >>some function like xfs_getbmapx_fix_eof_hole to adjust 'out'. > > > >... because I think we can safely skip xfs_getbmapx_fix_eof_hole() > >it only modifies the hole. Hence just adding a check after the > >attribute fork end check (which needs to detect a hole to terminate) > >should be fine: e.g something like: > > > > if (map[i].br_startblock == HOLESTARTBLOCK&& > > whichfork == XFS_ATTR_FORK) { > > /* came to the end of attribute fork */ > > out[cur_ext].bmv_oflags |= BMV_OF_LAST; > > goto out_free_map; > > } > >+ if (map[i].br_startblock == HOLESTARTBLOCK&& > >+ (iflags& BMV_IF_NO_HOLES)) { > >+ memset(&out[cur_ext], 0, sizeof(out[cur_ext])); > >+ continue; > >+ } > > > >Should work and avoid the worst of the ugliness. > I am afraid it doesn't work, at least from my test. It enters a dead loop. > I think the root cause is that your change doesn't update bmv_offset > and bmv_length for a hole. So in the large loop, Yes, you are right - I didn't consider the outer loop termination properly. My bad. I'll add your patch to my qa list and move it onwards. Thanks. Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0+AWmN+18+fromorbit.com=dave@internode.on.net Fri Jun 18 02:30:50 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5I7UoIX213375 for ; Fri, 18 Jun 2010 02:30:50 -0500 X-ASG-Debug-ID: 1276846406-51a700eb0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 035591B766DF for ; Fri, 18 Jun 2010 00:33:26 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id D9RHGU4mFzMu44dB for ; Fri, 18 Jun 2010 00:33:26 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28493544-1927428 for multiple; Fri, 18 Jun 2010 17:03:22 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OPW4n-00083F-2o; Fri, 18 Jun 2010 17:33:21 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OPW4k-0006Ed-QI; Fri, 18 Jun 2010 17:33:18 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: security@kernel.org X-ASG-Orig-Subj: [PATCH 3/4] xfs: rename XFS_IGET_BULKSTAT to XFS_IGET_UNTRUSTED Subject: [PATCH 3/4] xfs: rename XFS_IGET_BULKSTAT to XFS_IGET_UNTRUSTED Date: Fri, 18 Jun 2010 17:32:53 +1000 Message-Id: <1276846374-23916-4-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1276846374-23916-1-git-send-email-david@fromorbit.com> References: <1276846374-23916-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1276846408 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32846 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner Inode numbers may come from somewhere external to the filesystem (e.g. file handles, bulkstat information) and so are inherently untrusted. Rename the flag we use for these lookups to make it obvious we are doing a lookup of an untrusted inode number and need to verify it completely before trying to read it from disk. Signed-off-by: Dave Chinner --- fs/xfs/linux-2.6/xfs_export.c | 9 ++++----- fs/xfs/xfs_ialloc.c | 6 +++--- fs/xfs/xfs_inode.c | 2 +- fs/xfs/xfs_inode.h | 2 +- fs/xfs/xfs_itable.c | 2 +- 5 files changed, 10 insertions(+), 11 deletions(-) diff --git a/fs/xfs/linux-2.6/xfs_export.c b/fs/xfs/linux-2.6/xfs_export.c index e61232f..b39c05c 100644 --- a/fs/xfs/linux-2.6/xfs_export.c +++ b/fs/xfs/linux-2.6/xfs_export.c @@ -127,12 +127,11 @@ xfs_nfs_get_inode( return ERR_PTR(-ESTALE); /* - * The XFS_IGET_BULKSTAT means that an invalid inode number is just - * fine and not an indication of a corrupted filesystem. Because - * clients can send any kind of invalid file handle, e.g. after - * a restore on the server we have to deal with this case gracefully. + * The XFS_IGET_UNTRUSTED means that an invalid inode number is just + * fine and not an indication of a corrupted filesystem as clients can + * send invalid file handles and we have to handle it gracefully.. */ - error = xfs_iget(mp, NULL, ino, XFS_IGET_BULKSTAT, + error = xfs_iget(mp, NULL, ino, XFS_IGET_UNTRUSTED, XFS_ILOCK_SHARED, &ip, 0); if (error) { /* diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c index 06eb987..4efc23b 100644 --- a/fs/xfs/xfs_ialloc.c +++ b/fs/xfs/xfs_ialloc.c @@ -1265,7 +1265,7 @@ error0: return error; /* for untrusted inodes check it is allocated first */ - if ((flags & XFS_IGET_BULKSTAT) && + if ((flags & XFS_IGET_UNTRUSTED) && (rec.ir_free & XFS_INOBT_MASK(agino - rec.ir_startino))) return EINVAL; @@ -1307,7 +1307,7 @@ xfs_imap( ino != XFS_AGINO_TO_INO(mp, agno, agino)) { #ifdef DEBUG /* no diagnostics for bulkstat, ino comes from userspace */ - if (flags & XFS_IGET_BULKSTAT) + if (flags & XFS_IGET_UNTRUSTED) return XFS_ERROR(EINVAL); if (agno >= mp->m_sb.sb_agcount) { xfs_fs_cmn_err(CE_ALERT, mp, @@ -1343,7 +1343,7 @@ xfs_imap( * inodes in stale state on disk. Hence we have to do a btree lookup * in all cases where an untrusted inode number is passed. */ - if (flags & XFS_IGET_BULKSTAT) { + if (flags & XFS_IGET_UNTRUSTED) { error = xfs_imap_lookup(mp, tp, agno, agino, agbno, &chunk_agbno, &offset_agbno, flags); if (error) diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 5c2ada4..9101e79 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -173,7 +173,7 @@ xfs_imap_to_bp( if (unlikely(XFS_TEST_ERROR(!di_ok, mp, XFS_ERRTAG_ITOBP_INOTOBP, XFS_RANDOM_ITOBP_INOTOBP))) { - if (iget_flags & XFS_IGET_BULKSTAT) { + if (iget_flags & XFS_IGET_UNTRUSTED) { xfs_trans_brelse(tp, bp); return XFS_ERROR(EINVAL); } diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h index 10dd2e0..7a2f347 100644 --- a/fs/xfs/xfs_inode.h +++ b/fs/xfs/xfs_inode.h @@ -499,7 +499,7 @@ do { \ * Flags for xfs_iget() */ #define XFS_IGET_CREATE 0x1 -#define XFS_IGET_BULKSTAT 0x2 +#define XFS_IGET_UNTRUSTED 0x2 int xfs_inotobp(struct xfs_mount *, struct xfs_trans *, xfs_ino_t, struct xfs_dinode **, diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c index f554bd9..5fccd84 100644 --- a/fs/xfs/xfs_itable.c +++ b/fs/xfs/xfs_itable.c @@ -76,7 +76,7 @@ xfs_bulkstat_one_int( return XFS_ERROR(ENOMEM); error = xfs_iget(mp, NULL, ino, - XFS_IGET_BULKSTAT, XFS_ILOCK_SHARED, &ip, bno); + XFS_IGET_UNTRUSTED, XFS_ILOCK_SHARED, &ip, bno); if (error) { *stat = BULKSTAT_RV_NOTHING; goto out_free; -- 1.7.1 From SRS0+AWmN+18+fromorbit.com=dave@internode.on.net Fri Jun 18 02:30:58 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=BAYES_00,LOCALPART_IN_SUBJECT autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5I7Uw6x213398 for ; Fri, 18 Jun 2010 02:30:58 -0500 X-ASG-Debug-ID: 1276846642-41c503530000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id ED981B1DD80 for ; Fri, 18 Jun 2010 00:37:23 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id K6PzAHFh5HAD7kou for ; Fri, 18 Jun 2010 00:37:23 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28493559-1927428 for multiple; Fri, 18 Jun 2010 17:03:32 +0930 (CST) Received: from [192.168.1.9] (helo=disturbed) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OPW4w-00083C-Pc; Fri, 18 Jun 2010 17:33:30 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OPW4k-0006EW-I3; Fri, 18 Jun 2010 17:33:18 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: security@kernel.org X-ASG-Orig-Subj: xfs: validate inode numbers in file handles correctly Subject: xfs: validate inode numbers in file handles correctly Date: Fri, 18 Jun 2010 17:32:50 +1000 Message-Id: <1276846374-23916-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1276846644 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.02 X-Barracuda-Spam-Status: No, SCORE=-1.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=LOCALPART_IN_SUBJECT, LOCALPART_IN_SUBJECT_2 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32847 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 LOCALPART_IN_SUBJECT Local part of To: address appears in Subject 1.00 LOCALPART_IN_SUBJECT_2 Local part of To: address appears in Subject X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean This series closes a recently discovered problem in XFS filehandle conversion. On systems where inodes are dynamically deleted, XFS does not adequately verify the inode numbers in the filehandles, which results in reading stale inodes from disk and potentially returning them as valid files. Because these unlinked inodes were never zeroed out when the chunk was deallocated, some inodes in the chunk can still appear to have to data extents attached to them. This can lead to stale data exposure, exposure of active data and potentially overwriting of active data if the stale extents referenced in the unlinked inodes have been re-allocated. Both NFS filehandles and local filehandles provided through libhandle have this same problem. libhandle requires root permissions to use the interface, so it is not exposing information that you can't get more easily with other means (e.g. xfs_db or reading directly form the block device), so there isn't really an issue here. For NFS, we may incorrectly accept stale file handles for unlinked inodes after a server reboot if the unlinked inodes have not been overwritten leading to the above issues being triggered if multiple NFS clients are accessing the some files. Christoph's make-bulkstat-coherent patch is the basis for this series as bulkstat can also expose unlinked inodes and information about them back to userspace because it makes the same assumptions about inode lookups as the file handle interfaces. As a result, the first two patches of the series make up the real bug fix. The last two patches make it clear we are looking up untrusted inode numbers and remove a shortcut that these interfaces used that we do not want used any more. Hence for backports to other kernels, only the first two patches are necessary. More information and the test program that demonstrates the issue via the open_by_handle interface can be found here: http://oss.sgi.com/archives/xfs/2010-06/msg00191.html From SRS0+dQqb+18+fromorbit.com=dave@internode.on.net Fri Jun 18 02:31:00 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_65 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5I7V0xa213408 for ; Fri, 18 Jun 2010 02:31:00 -0500 X-ASG-Debug-ID: 1276846416-3c8000c10000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id D87323E3E48 for ; Fri, 18 Jun 2010 00:33:36 -0700 (PDT) Received: from mail.internode.on.net (bld-mail16.adl2.internode.on.net [150.101.137.101]) by cuda.sgi.com with ESMTP id 8aHKSlaQCeJUx2An for ; Fri, 18 Jun 2010 00:33:36 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28345897-1927428 for multiple; Fri, 18 Jun 2010 17:03:32 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OPW4n-00083E-0h; Fri, 18 Jun 2010 17:33:21 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OPW4k-0006Ea-NO; Fri, 18 Jun 2010 17:33:18 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: security@kernel.org X-ASG-Orig-Subj: [PATCH 2/4] xfs: validate untrusted inode numbers during lookup Subject: [PATCH 2/4] xfs: validate untrusted inode numbers during lookup Date: Fri, 18 Jun 2010 17:32:52 +1000 Message-Id: <1276846374-23916-3-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1276846374-23916-1-git-send-email-david@fromorbit.com> References: <1276846374-23916-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail16.adl2.internode.on.net[150.101.137.101] X-Barracuda-Start-Time: 1276846417 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32846 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner When we decode a handle or do a bulkstat lookup, we are using an inode number we cannot trust to be valid. If we are deleting inode chunks from disk (default noikeep mode), then we cannot trust the on disk inode buffer for any given inode number to correctly reflect whether the inode has been unlinked as the di_mode nor the generation number may have been updated on disk. This is due to the fact that when we delete an inode chunk, we do not write the clusters back to disk when they are removed - instead we mark them stale to avoid them being written back potentially over the top of something that has been subsequently allocated at that location. The result is that we can have locations of disk that look like they contain valid inodes but in reality do not. Hence we cannot simply convert the inode number to a block number and read the location from disk to determine if the inode is valid or not. As a result, and XFS_IGET_BULKSTAT lookup needs to actually look the inode up in the inode allocation btree to determine if the inode number is valid or not. It should be noted even on ikeep filesystems, there is the possibility that blocks on disk may look like valid inode clusters. e.g. if there are filesystem images hosted on the filesystem. Hence even for ikeep filesystems we really need to validate that the inode number is valid before issuing the inode buffer read. Signed-off-by: Dave Chinner --- fs/xfs/xfs_ialloc.c | 139 +++++++++++++++++++++++++++++++++++---------------- 1 files changed, 96 insertions(+), 43 deletions(-) diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c index 0cf49f0..06eb987 100644 --- a/fs/xfs/xfs_ialloc.c +++ b/fs/xfs/xfs_ialloc.c @@ -1199,6 +1199,81 @@ error0: return error; } +static int +xfs_imap_lookup( + xfs_mount_t *mp, + xfs_trans_t *tp, + xfs_agnumber_t agno, + xfs_agino_t agino, + xfs_agblock_t agbno, + xfs_agblock_t *chunk_agbno, + xfs_agblock_t *offset_agbno, + int flags) +{ + xfs_inobt_rec_incore_t rec; + xfs_btree_cur_t *cur; + xfs_buf_t *agbp; + int error; + int i; + xfs_agino_t startino; + + error = xfs_ialloc_read_agi(mp, tp, agno, &agbp); + if (error) { + xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: " + "xfs_ialloc_read_agi() returned " + "error %d, agno %d", + error, agno); + return error; + } + + /* + * derive and lookup the exact inode record for the given agino. If the + * record cannot be found, then it's an invalid inode number and we + * should abort. + */ + cur = xfs_inobt_init_cursor(mp, tp, agbp, agno); + startino = agino & ~(XFS_IALLOC_INODES(mp) - 1); + error = xfs_inobt_lookup(cur, startino, XFS_LOOKUP_EQ, &i); + if (error) { + xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: " + "xfs_inobt_lookup() failed"); + goto error0; + } + if (i == 0) { + error = EINVAL; + goto error0; + } + + error = xfs_inobt_get_rec(cur, &rec, &i); + if (error) { + xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: " + "xfs_inobt_get_rec() failed"); + goto error0; + } + if (i == 0) { +#ifdef DEBUG + xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: " + "xfs_inobt_get_rec() failed"); +#endif /* DEBUG */ + error = XFS_ERROR(EINVAL); + } +error0: + xfs_trans_brelse(tp, agbp); + xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR); + + if (error) + return error; + + /* for untrusted inodes check it is allocated first */ + if ((flags & XFS_IGET_BULKSTAT) && + (rec.ir_free & XFS_INOBT_MASK(agino - rec.ir_startino))) + return EINVAL; + + *chunk_agbno = XFS_AGINO_TO_AGBNO(mp, rec.ir_startino); + *offset_agbno = agbno - *chunk_agbno; + return 0; +} + /* * Return the location of the inode in imap, for mapping it into a buffer. */ @@ -1259,6 +1334,23 @@ xfs_imap( return XFS_ERROR(EINVAL); } + blks_per_cluster = XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_blocklog; + + /* + * For bulkstat and handle lookups, we have an untrusted inode number + * that we have to verify is valid. We cannot do this just by reading + * the inode buffer as it may have been unlinked and removed leaving + * inodes in stale state on disk. Hence we have to do a btree lookup + * in all cases where an untrusted inode number is passed. + */ + if (flags & XFS_IGET_BULKSTAT) { + error = xfs_imap_lookup(mp, tp, agno, agino, agbno, + &chunk_agbno, &offset_agbno, flags); + if (error) + return error; + goto out_map; + } + /* * If the inode cluster size is the same as the blocksize or * smaller we get to the buffer by simple arithmetics. @@ -1273,10 +1365,8 @@ xfs_imap( return 0; } - blks_per_cluster = XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_blocklog; - /* - * If we get a block number passed from bulkstat we can use it to + * If we get a block number passed we can use it to * find the buffer easily. */ if (imap->im_blkno) { @@ -1300,50 +1390,13 @@ xfs_imap( offset_agbno = agbno & mp->m_inoalign_mask; chunk_agbno = agbno - offset_agbno; } else { - xfs_btree_cur_t *cur; /* inode btree cursor */ - xfs_inobt_rec_incore_t chunk_rec; - xfs_buf_t *agbp; /* agi buffer */ - int i; /* temp state */ - - error = xfs_ialloc_read_agi(mp, tp, agno, &agbp); - if (error) { - xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: " - "xfs_ialloc_read_agi() returned " - "error %d, agno %d", - error, agno); - return error; - } - - cur = xfs_inobt_init_cursor(mp, tp, agbp, agno); - error = xfs_inobt_lookup(cur, agino, XFS_LOOKUP_LE, &i); - if (error) { - xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: " - "xfs_inobt_lookup() failed"); - goto error0; - } - - error = xfs_inobt_get_rec(cur, &chunk_rec, &i); - if (error) { - xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: " - "xfs_inobt_get_rec() failed"); - goto error0; - } - if (i == 0) { -#ifdef DEBUG - xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: " - "xfs_inobt_get_rec() failed"); -#endif /* DEBUG */ - error = XFS_ERROR(EINVAL); - } - error0: - xfs_trans_brelse(tp, agbp); - xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR); + error = xfs_imap_lookup(mp, tp, agno, agino, agbno, + &chunk_agbno, &offset_agbno, flags); if (error) return error; - chunk_agbno = XFS_AGINO_TO_AGBNO(mp, chunk_rec.ir_startino); - offset_agbno = agbno - chunk_agbno; } +out_map: ASSERT(agbno >= chunk_agbno); cluster_agbno = chunk_agbno + ((offset_agbno / blks_per_cluster) * blks_per_cluster); -- 1.7.1 From SRS0+HiFe+18+fromorbit.com=dave@internode.on.net Fri Jun 18 02:31:00 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,J_CHICKENPOX_63, J_CHICKENPOX_66,J_CHICKENPOX_92 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5I7V0Ij213416 for ; Fri, 18 Jun 2010 02:31:00 -0500 X-ASG-Debug-ID: 1276846416-51a2013c0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 2E7B81B766E1 for ; Fri, 18 Jun 2010 00:33:36 -0700 (PDT) Received: from mail.internode.on.net (bld-mail19.adl2.internode.on.net [150.101.137.104]) by cuda.sgi.com with ESMTP id 9xrk57bWTK9AIWi0 for ; Fri, 18 Jun 2010 00:33:36 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28250851-1927428 for multiple; Fri, 18 Jun 2010 17:03:33 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OPW4n-00083I-5j; Fri, 18 Jun 2010 17:33:21 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OPW4k-0006Ef-SF; Fri, 18 Jun 2010 17:33:18 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: security@kernel.org X-ASG-Orig-Subj: [PATCH 4/4] xfs: remove block number from inode lookup code Subject: [PATCH 4/4] xfs: remove block number from inode lookup code Date: Fri, 18 Jun 2010 17:32:54 +1000 Message-Id: <1276846374-23916-5-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1276846374-23916-1-git-send-email-david@fromorbit.com> References: <1276846374-23916-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail19.adl2.internode.on.net[150.101.137.104] X-Barracuda-Start-Time: 1276846418 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.52 X-Barracuda-Spam-Status: No, SCORE=-1.52 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_RULE7568M X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32846 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.50 BSF_RULE7568M Custom Rule 7568M X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner The block number comes from bulkstat based inode lookups to shortcut the mapping calculations. We ar enot able to trust anything from bulkstat, so drop the block number as well so that the correct lookups and mappings are always done. Signed-off-by: Dave Chinner --- fs/xfs/linux-2.6/xfs_export.c | 2 +- fs/xfs/linux-2.6/xfs_ioctl32.c | 5 ++--- fs/xfs/quota/xfs_qm.c | 7 +++---- fs/xfs/quota/xfs_qm_syscalls.c | 11 +++++------ fs/xfs/xfs_ialloc.c | 16 ---------------- fs/xfs/xfs_iget.c | 10 +++------- fs/xfs/xfs_inode.c | 4 +--- fs/xfs/xfs_inode.h | 4 ++-- fs/xfs/xfs_itable.c | 12 ++++-------- fs/xfs/xfs_itable.h | 3 --- fs/xfs/xfs_log_recover.c | 2 +- fs/xfs/xfs_mount.c | 2 +- fs/xfs/xfs_rtalloc.c | 4 ++-- fs/xfs/xfs_trans_inode.c | 2 +- fs/xfs/xfs_vnodeops.c | 2 +- 15 files changed, 27 insertions(+), 59 deletions(-) diff --git a/fs/xfs/linux-2.6/xfs_export.c b/fs/xfs/linux-2.6/xfs_export.c index b39c05c..55df942 100644 --- a/fs/xfs/linux-2.6/xfs_export.c +++ b/fs/xfs/linux-2.6/xfs_export.c @@ -132,7 +132,7 @@ xfs_nfs_get_inode( * send invalid file handles and we have to handle it gracefully.. */ error = xfs_iget(mp, NULL, ino, XFS_IGET_UNTRUSTED, - XFS_ILOCK_SHARED, &ip, 0); + XFS_ILOCK_SHARED, &ip); if (error) { /* * EINVAL means the inode cluster doesn't exist anymore. diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index 48c1aba..6cd1225 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -233,12 +233,11 @@ xfs_bulkstat_one_compat( xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* buffer to place output in */ int ubsize, /* size of buffer */ - xfs_daddr_t bno, /* starting bno of inode cluster */ int *ubused, /* bytes used by me */ int *stat) /* BULKSTAT_RV_... */ { return xfs_bulkstat_one_int(mp, ino, buffer, ubsize, - xfs_bulkstat_one_fmt_compat, bno, + xfs_bulkstat_one_fmt_compat, ubused, stat); } @@ -292,7 +291,7 @@ xfs_compat_ioc_bulkstat( int res; error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer, - sizeof(compat_xfs_bstat_t), 0, NULL, &res); + sizeof(compat_xfs_bstat_t), 0, &res); } else if (cmd == XFS_IOC_FSBULKSTAT_32) { error = xfs_bulkstat(mp, &inlast, &count, xfs_bulkstat_one_compat, sizeof(compat_xfs_bstat_t), diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c index 25bc7da..175032f 100644 --- a/fs/xfs/quota/xfs_qm.c +++ b/fs/xfs/quota/xfs_qm.c @@ -1625,7 +1625,6 @@ xfs_qm_dqusage_adjust( xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* not used */ int ubsize, /* not used */ - xfs_daddr_t bno, /* starting block of inode cluster */ int *ubused, /* not used */ int *res) /* result code value */ { @@ -1651,7 +1650,7 @@ xfs_qm_dqusage_adjust( * the case in all other instances. It's OK that we do this because * quotacheck is done only at mount time. */ - if ((error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_EXCL, &ip, bno))) { + if ((error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_EXCL, &ip))) { *res = BULKSTAT_RV_NOTHING; return error; } @@ -1881,14 +1880,14 @@ xfs_qm_init_quotainos( mp->m_sb.sb_uquotino != NULLFSINO) { ASSERT(mp->m_sb.sb_uquotino > 0); if ((error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, - 0, 0, &uip, 0))) + 0, 0, &uip))) return XFS_ERROR(error); } if (XFS_IS_OQUOTA_ON(mp) && mp->m_sb.sb_gquotino != NULLFSINO) { ASSERT(mp->m_sb.sb_gquotino > 0); if ((error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, - 0, 0, &gip, 0))) { + 0, 0, &gip))) { if (uip) IRELE(uip); return XFS_ERROR(error); diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c index aa44c58..2d1abbf 100644 --- a/fs/xfs/quota/xfs_qm_syscalls.c +++ b/fs/xfs/quota/xfs_qm_syscalls.c @@ -252,7 +252,7 @@ xfs_qm_scall_trunc_qfiles( } if ((flags & XFS_DQ_USER) && mp->m_sb.sb_uquotino != NULLFSINO) { - error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, 0, 0, &qip, 0); + error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, 0, 0, &qip); if (!error) { error = xfs_truncate_file(mp, qip); IRELE(qip); @@ -261,7 +261,7 @@ xfs_qm_scall_trunc_qfiles( if ((flags & (XFS_DQ_GROUP|XFS_DQ_PROJ)) && mp->m_sb.sb_gquotino != NULLFSINO) { - error2 = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, 0, 0, &qip, 0); + error2 = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, 0, 0, &qip); if (!error2) { error2 = xfs_truncate_file(mp, qip); IRELE(qip); @@ -407,12 +407,12 @@ xfs_qm_scall_getqstat( } if (!uip && mp->m_sb.sb_uquotino != NULLFSINO) { if (xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, - 0, 0, &uip, 0) == 0) + 0, 0, &uip) == 0) tempuqip = B_TRUE; } if (!gip && mp->m_sb.sb_gquotino != NULLFSINO) { if (xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, - 0, 0, &gip, 0) == 0) + 0, 0, &gip) == 0) tempgqip = B_TRUE; } if (uip) { @@ -1095,7 +1095,6 @@ xfs_qm_internalqcheck_adjust( xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* not used */ int ubsize, /* not used */ - xfs_daddr_t bno, /* starting block of inode cluster */ int *ubused, /* not used */ int *res) /* bulkstat result code */ { @@ -1118,7 +1117,7 @@ xfs_qm_internalqcheck_adjust( ipreleased = B_FALSE; again: lock_flags = XFS_ILOCK_SHARED; - if ((error = xfs_iget(mp, NULL, ino, 0, lock_flags, &ip, bno))) { + if ((error = xfs_iget(mp, NULL, ino, 0, lock_flags, &ip))) { *res = BULKSTAT_RV_NOTHING; return (error); } diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c index 4efc23b..b4351a7 100644 --- a/fs/xfs/xfs_ialloc.c +++ b/fs/xfs/xfs_ialloc.c @@ -1366,22 +1366,6 @@ xfs_imap( } /* - * If we get a block number passed we can use it to - * find the buffer easily. - */ - if (imap->im_blkno) { - offset = XFS_INO_TO_OFFSET(mp, ino); - ASSERT(offset < mp->m_sb.sb_inopblock); - - cluster_agbno = xfs_daddr_to_agbno(mp, imap->im_blkno); - offset += (agbno - cluster_agbno) * mp->m_sb.sb_inopblock; - - imap->im_len = XFS_FSB_TO_BB(mp, blks_per_cluster); - imap->im_boffset = (ushort)(offset << mp->m_sb.sb_inodelog); - return 0; - } - - /* * If the inode chunks are aligned then use simple maths to * find the location. Otherwise we have to do a btree * lookup to find the location. diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c index a80b9b9..d6ef971 100644 --- a/fs/xfs/xfs_iget.c +++ b/fs/xfs/xfs_iget.c @@ -255,7 +255,6 @@ xfs_iget_cache_miss( xfs_trans_t *tp, xfs_ino_t ino, struct xfs_inode **ipp, - xfs_daddr_t bno, int flags, int lock_flags) { @@ -268,7 +267,7 @@ xfs_iget_cache_miss( if (!ip) return ENOMEM; - error = xfs_iread(mp, tp, ip, bno, flags); + error = xfs_iread(mp, tp, ip, flags); if (error) goto out_destroy; @@ -354,8 +353,6 @@ out_destroy: * within the file system for the inode being requested. * lock_flags -- flags indicating how to lock the inode. See the comment * for xfs_ilock() for a list of valid values. - * bno -- the block number starting the buffer containing the inode, - * if known (as by bulkstat), else 0. */ int xfs_iget( @@ -364,8 +361,7 @@ xfs_iget( xfs_ino_t ino, uint flags, uint lock_flags, - xfs_inode_t **ipp, - xfs_daddr_t bno) + xfs_inode_t **ipp) { xfs_inode_t *ip; int error; @@ -393,7 +389,7 @@ again: read_unlock(&pag->pag_ici_lock); XFS_STATS_INC(xs_ig_missed); - error = xfs_iget_cache_miss(mp, pag, tp, ino, &ip, bno, + error = xfs_iget_cache_miss(mp, pag, tp, ino, &ip, flags, lock_flags); if (error) goto out_error_or_again; diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 9101e79..d09bc53 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -783,7 +783,6 @@ xfs_iread( xfs_mount_t *mp, xfs_trans_t *tp, xfs_inode_t *ip, - xfs_daddr_t bno, uint iget_flags) { xfs_buf_t *bp; @@ -793,11 +792,10 @@ xfs_iread( /* * Fill in the location information in the in-core inode. */ - ip->i_imap.im_blkno = bno; + ip->i_imap.im_blkno = 0; error = xfs_imap(mp, tp, ip->i_ino, &ip->i_imap, iget_flags); if (error) return error; - ASSERT(bno == 0 || bno == ip->i_imap.im_blkno); /* * Get pointers to the on-disk inode and the buffer containing it. diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h index 7a2f347..7a19d52 100644 --- a/fs/xfs/xfs_inode.h +++ b/fs/xfs/xfs_inode.h @@ -442,7 +442,7 @@ static inline void xfs_ifunlock(xfs_inode_t *ip) * xfs_iget.c prototypes. */ int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t, - uint, uint, xfs_inode_t **, xfs_daddr_t); + uint, uint, xfs_inode_t **); void xfs_iput(xfs_inode_t *, uint); void xfs_ilock(xfs_inode_t *, uint); int xfs_ilock_nowait(xfs_inode_t *, uint); @@ -508,7 +508,7 @@ int xfs_itobp(struct xfs_mount *, struct xfs_trans *, struct xfs_inode *, struct xfs_dinode **, struct xfs_buf **, uint); int xfs_iread(struct xfs_mount *, struct xfs_trans *, - struct xfs_inode *, xfs_daddr_t, uint); + struct xfs_inode *, uint); void xfs_dinode_to_disk(struct xfs_dinode *, struct xfs_icdinode *); void xfs_idestroy_fork(struct xfs_inode *, int); diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c index 5fccd84..200dc6f 100644 --- a/fs/xfs/xfs_itable.c +++ b/fs/xfs/xfs_itable.c @@ -56,7 +56,6 @@ xfs_bulkstat_one_int( void __user *buffer, /* buffer to place output in */ int ubsize, /* size of buffer */ bulkstat_one_fmt_pf formatter, /* formatter, copy to user */ - xfs_daddr_t bno, /* starting bno of cluster */ int *ubused, /* bytes used by me */ int *stat) /* BULKSTAT_RV_... */ { @@ -76,7 +75,7 @@ xfs_bulkstat_one_int( return XFS_ERROR(ENOMEM); error = xfs_iget(mp, NULL, ino, - XFS_IGET_UNTRUSTED, XFS_ILOCK_SHARED, &ip, bno); + XFS_IGET_UNTRUSTED, XFS_ILOCK_SHARED, &ip); if (error) { *stat = BULKSTAT_RV_NOTHING; goto out_free; @@ -175,13 +174,11 @@ xfs_bulkstat_one( xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* buffer to place output in */ int ubsize, /* size of buffer */ - xfs_daddr_t bno, /* starting bno of inode cluster */ int *ubused, /* bytes used by me */ int *stat) /* BULKSTAT_RV_... */ { return xfs_bulkstat_one_int(mp, ino, buffer, ubsize, - xfs_bulkstat_one_fmt, bno, - ubused, stat); + xfs_bulkstat_one_fmt, ubused, stat); } #define XFS_BULKSTAT_UBLEFT(ubleft) ((ubleft) >= statstruct_size) @@ -481,7 +478,7 @@ xfs_bulkstat( * Get the inode and fill in a single buffer. */ ubused = statstruct_size; - error = formatter(mp, ino, ubufp, ubleft, bno, + error = formatter(mp, ino, ubufp, ubleft, &ubused, &fmterror); if (fmterror == BULKSTAT_RV_NOTHING) { if (error && error != ENOENT && @@ -574,8 +571,7 @@ xfs_bulkstat_single( */ ino = (xfs_ino_t)*lastinop; - error = xfs_bulkstat_one(mp, ino, buffer, sizeof(xfs_bstat_t), - 0, NULL, &res); + error = xfs_bulkstat_one(mp, ino, buffer, sizeof(xfs_bstat_t), 0, &res); if (error) { /* * Special case way failed, do it the "long" way diff --git a/fs/xfs/xfs_itable.h b/fs/xfs/xfs_itable.h index fea0339..97295d9 100644 --- a/fs/xfs/xfs_itable.h +++ b/fs/xfs/xfs_itable.h @@ -27,7 +27,6 @@ typedef int (*bulkstat_one_pf)(struct xfs_mount *mp, xfs_ino_t ino, void __user *buffer, int ubsize, - xfs_daddr_t bno, int *ubused, int *stat); @@ -71,7 +70,6 @@ xfs_bulkstat_one_int( void __user *buffer, int ubsize, bulkstat_one_fmt_pf formatter, - xfs_daddr_t bno, int *ubused, int *stat); @@ -81,7 +79,6 @@ xfs_bulkstat_one( xfs_ino_t ino, void __user *buffer, int ubsize, - xfs_daddr_t bno, int *ubused, int *stat); diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 1ac0b79..6f3f5fa 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -3186,7 +3186,7 @@ xlog_recover_process_one_iunlink( int error; ino = XFS_AGINO_TO_INO(mp, agno, agino); - error = xfs_iget(mp, NULL, ino, 0, 0, &ip, 0); + error = xfs_iget(mp, NULL, ino, 0, 0, &ip); if (error) goto fail; diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index 4e1725b..aeb9d72 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -1297,7 +1297,7 @@ xfs_mountfs( * Get and sanity-check the root inode. * Save the pointer to it in the mount structure. */ - error = xfs_iget(mp, NULL, sbp->sb_rootino, 0, XFS_ILOCK_EXCL, &rip, 0); + error = xfs_iget(mp, NULL, sbp->sb_rootino, 0, XFS_ILOCK_EXCL, &rip); if (error) { cmn_err(CE_WARN, "XFS: failed to read root inode"); goto out_log_dealloc; diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c index 20b5eb7..891260f 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -2270,12 +2270,12 @@ xfs_rtmount_inodes( sbp = &mp->m_sb; if (sbp->sb_rbmino == NULLFSINO) return 0; - error = xfs_iget(mp, NULL, sbp->sb_rbmino, 0, 0, &mp->m_rbmip, 0); + error = xfs_iget(mp, NULL, sbp->sb_rbmino, 0, 0, &mp->m_rbmip); if (error) return error; ASSERT(mp->m_rbmip != NULL); ASSERT(sbp->sb_rsumino != NULLFSINO); - error = xfs_iget(mp, NULL, sbp->sb_rsumino, 0, 0, &mp->m_rsumip, 0); + error = xfs_iget(mp, NULL, sbp->sb_rsumino, 0, 0, &mp->m_rsumip); if (error) { IRELE(mp->m_rbmip); return error; diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c index 10534c2..cdc53a1 100644 --- a/fs/xfs/xfs_trans_inode.c +++ b/fs/xfs/xfs_trans_inode.c @@ -57,7 +57,7 @@ xfs_trans_iget( { int error; - error = xfs_iget(mp, tp, ino, flags, lock_flags, ipp, 0); + error = xfs_iget(mp, tp, ino, flags, lock_flags, ipp); if (!error && tp) { xfs_trans_ijoin(tp, *ipp); (*ipp)->i_itemp->ili_lock_flags = lock_flags; diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c index df6d1b5..ad599cc 100644 --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -1233,7 +1233,7 @@ xfs_lookup( if (error) goto out; - error = xfs_iget(dp->i_mount, NULL, inum, 0, 0, ipp, 0); + error = xfs_iget(dp->i_mount, NULL, inum, 0, 0, ipp); if (error) goto out_free_name; -- 1.7.1 From SRS0+dQqb+18+fromorbit.com=dave@internode.on.net Fri Jun 18 02:31:00 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,J_CHICKENPOX_62, J_CHICKENPOX_92 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5I7V0Om213419 for ; Fri, 18 Jun 2010 02:31:00 -0500 X-ASG-Debug-ID: 1276846415-3c7e00bb0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id EE9373E3E4B for ; Fri, 18 Jun 2010 00:33:36 -0700 (PDT) Received: from mail.internode.on.net (bld-mail14.adl6.internode.on.net [150.101.137.99]) by cuda.sgi.com with ESMTP id WS18C9hmba8uZ9pb for ; Fri, 18 Jun 2010 00:33:36 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28674077-1927428 for multiple; Fri, 18 Jun 2010 17:03:32 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OPW4m-00083D-Ul; Fri, 18 Jun 2010 17:33:20 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OPW4k-0006EY-KM; Fri, 18 Jun 2010 17:33:18 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: security@kernel.org X-ASG-Orig-Subj: [PATCH 1/4] xfs: always use iget in bulkstat Subject: [PATCH 1/4] xfs: always use iget in bulkstat Date: Fri, 18 Jun 2010 17:32:51 +1000 Message-Id: <1276846374-23916-2-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1276846374-23916-1-git-send-email-david@fromorbit.com> References: <1276846374-23916-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail14.adl6.internode.on.net[150.101.137.99] X-Barracuda-Start-Time: 1276846417 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32846 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Christoph Hellwig The non-coherent bulkstat versionsthat look directly at the inode buffers causes various problems with performance optimizations that make increased use of just logging inodes. This patch makes bulkstat always use iget, which should be fast enough for normal use with the radix-tree based inode cache introduced a while ago. Signed-off-by: Christoph Hellwig --- fs/xfs/linux-2.6/xfs_ioctl.c | 7 +- fs/xfs/linux-2.6/xfs_ioctl32.c | 12 +- fs/xfs/quota/xfs_qm.c | 11 +- fs/xfs/quota/xfs_qm_syscalls.c | 16 +-- fs/xfs/xfs_itable.c | 281 ++++++---------------------------------- fs/xfs/xfs_itable.h | 14 -- 6 files changed, 59 insertions(+), 282 deletions(-) diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c index faafd94..a12ddda 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl.c +++ b/fs/xfs/linux-2.6/xfs_ioctl.c @@ -670,10 +670,9 @@ xfs_ioc_bulkstat( error = xfs_bulkstat_single(mp, &inlast, bulkreq.ubuffer, &done); else /* XFS_IOC_FSBULKSTAT */ - error = xfs_bulkstat(mp, &inlast, &count, - (bulkstat_one_pf)xfs_bulkstat_one, NULL, - sizeof(xfs_bstat_t), bulkreq.ubuffer, - BULKSTAT_FG_QUICK, &done); + error = xfs_bulkstat(mp, &inlast, &count, xfs_bulkstat_one, + sizeof(xfs_bstat_t), bulkreq.ubuffer, + &done); if (error) return -error; diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index 40118b6..48c1aba 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -233,15 +233,13 @@ xfs_bulkstat_one_compat( xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* buffer to place output in */ int ubsize, /* size of buffer */ - void *private_data, /* my private data */ xfs_daddr_t bno, /* starting bno of inode cluster */ int *ubused, /* bytes used by me */ - void *dibuff, /* on-disk inode buffer */ int *stat) /* BULKSTAT_RV_... */ { return xfs_bulkstat_one_int(mp, ino, buffer, ubsize, xfs_bulkstat_one_fmt_compat, bno, - ubused, dibuff, stat); + ubused, stat); } /* copied from xfs_ioctl.c */ @@ -294,13 +292,11 @@ xfs_compat_ioc_bulkstat( int res; error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer, - sizeof(compat_xfs_bstat_t), - NULL, 0, NULL, NULL, &res); + sizeof(compat_xfs_bstat_t), 0, NULL, &res); } else if (cmd == XFS_IOC_FSBULKSTAT_32) { error = xfs_bulkstat(mp, &inlast, &count, - xfs_bulkstat_one_compat, NULL, - sizeof(compat_xfs_bstat_t), bulkreq.ubuffer, - BULKSTAT_FG_QUICK, &done); + xfs_bulkstat_one_compat, sizeof(compat_xfs_bstat_t), + bulkreq.ubuffer, &done); } else error = XFS_ERROR(EINVAL); if (error) diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c index 7a231ff..25bc7da 100644 --- a/fs/xfs/quota/xfs_qm.c +++ b/fs/xfs/quota/xfs_qm.c @@ -1625,10 +1625,8 @@ xfs_qm_dqusage_adjust( xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* not used */ int ubsize, /* not used */ - void *private_data, /* not used */ xfs_daddr_t bno, /* starting block of inode cluster */ int *ubused, /* not used */ - void *dip, /* on-disk inode pointer (not used) */ int *res) /* result code value */ { xfs_inode_t *ip; @@ -1789,12 +1787,13 @@ xfs_qm_quotacheck( * Iterate thru all the inodes in the file system, * adjusting the corresponding dquot counters in core. */ - if ((error = xfs_bulkstat(mp, &lastino, &count, - xfs_qm_dqusage_adjust, NULL, - structsz, NULL, BULKSTAT_FG_IGET, &done))) + error = xfs_bulkstat(mp, &lastino, &count, + xfs_qm_dqusage_adjust, + structsz, NULL, &done); + if (error) break; - } while (! done); + } while (!done); /* * We've made all the changes that we need to make incore. diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c index 19f218c..aa44c58 100644 --- a/fs/xfs/quota/xfs_qm_syscalls.c +++ b/fs/xfs/quota/xfs_qm_syscalls.c @@ -1095,10 +1095,8 @@ xfs_qm_internalqcheck_adjust( xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* not used */ int ubsize, /* not used */ - void *private_data, /* not used */ xfs_daddr_t bno, /* starting block of inode cluster */ int *ubused, /* not used */ - void *dip, /* not used */ int *res) /* bulkstat result code */ { xfs_inode_t *ip; @@ -1191,15 +1189,15 @@ xfs_qm_internalqcheck( * Iterate thru all the inodes in the file system, * adjusting the corresponding dquot counters */ - if ((error = xfs_bulkstat(mp, &lastino, &count, - xfs_qm_internalqcheck_adjust, NULL, - 0, NULL, BULKSTAT_FG_IGET, &done))) { + error = xfs_bulkstat(mp, &lastino, &count, + xfs_qm_internalqcheck_adjust, + 0, NULL, &done); + if (error) { + cmn_err(CE_DEBUG, "Bulkstat returned error 0x%x", error); break; } - } while (! done); - if (error) { - cmn_err(CE_DEBUG, "Bulkstat returned error 0x%x", error); - } + } while (!done); + cmn_err(CE_DEBUG, "Checking results against system dquots"); for (i = 0; i < qmtest_hashmask; i++) { xfs_dqtest_t *d, *n; diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c index 8314386..f554bd9 100644 --- a/fs/xfs/xfs_itable.c +++ b/fs/xfs/xfs_itable.c @@ -45,24 +45,41 @@ xfs_internal_inum( (ino == mp->m_sb.sb_uquotino || ino == mp->m_sb.sb_gquotino))); } -STATIC int -xfs_bulkstat_one_iget( - xfs_mount_t *mp, /* mount point for filesystem */ - xfs_ino_t ino, /* inode number to get data for */ - xfs_daddr_t bno, /* starting bno of inode cluster */ - xfs_bstat_t *buf, /* return buffer */ - int *stat) /* BULKSTAT_RV_... */ +/* + * Return stat information for one inode. + * Return 0 if ok, else errno. + */ +int +xfs_bulkstat_one_int( + struct xfs_mount *mp, /* mount point for filesystem */ + xfs_ino_t ino, /* inode to get data for */ + void __user *buffer, /* buffer to place output in */ + int ubsize, /* size of buffer */ + bulkstat_one_fmt_pf formatter, /* formatter, copy to user */ + xfs_daddr_t bno, /* starting bno of cluster */ + int *ubused, /* bytes used by me */ + int *stat) /* BULKSTAT_RV_... */ { - xfs_icdinode_t *dic; /* dinode core info pointer */ - xfs_inode_t *ip; /* incore inode pointer */ - struct inode *inode; - int error; + struct xfs_icdinode *dic; /* dinode core info pointer */ + struct xfs_inode *ip; /* incore inode pointer */ + struct inode *inode; + struct xfs_bstat *buf; /* return buffer */ + int error = 0; /* error value */ + + *stat = BULKSTAT_RV_NOTHING; + + if (!buffer || xfs_internal_inum(mp, ino)) + return XFS_ERROR(EINVAL); + + buf = kmem_alloc(sizeof(*buf), KM_SLEEP | KM_MAYFAIL); + if (!buf) + return XFS_ERROR(ENOMEM); error = xfs_iget(mp, NULL, ino, XFS_IGET_BULKSTAT, XFS_ILOCK_SHARED, &ip, bno); if (error) { *stat = BULKSTAT_RV_NOTHING; - return error; + goto out_free; } ASSERT(ip != NULL); @@ -123,77 +140,16 @@ xfs_bulkstat_one_iget( buf->bs_blocks = dic->di_nblocks + ip->i_delayed_blks; break; } - xfs_iput(ip, XFS_ILOCK_SHARED); - return error; -} -STATIC void -xfs_bulkstat_one_dinode( - xfs_mount_t *mp, /* mount point for filesystem */ - xfs_ino_t ino, /* inode number to get data for */ - xfs_dinode_t *dic, /* dinode inode pointer */ - xfs_bstat_t *buf) /* return buffer */ -{ - /* - * The inode format changed when we moved the link count and - * made it 32 bits long. If this is an old format inode, - * convert it in memory to look like a new one. If it gets - * flushed to disk we will convert back before flushing or - * logging it. We zero out the new projid field and the old link - * count field. We'll handle clearing the pad field (the remains - * of the old uuid field) when we actually convert the inode to - * the new format. We don't change the version number so that we - * can distinguish this from a real new format inode. - */ - if (dic->di_version == 1) { - buf->bs_nlink = be16_to_cpu(dic->di_onlink); - buf->bs_projid = 0; - } else { - buf->bs_nlink = be32_to_cpu(dic->di_nlink); - buf->bs_projid = be16_to_cpu(dic->di_projid); - } + error = formatter(buffer, ubsize, ubused, buf); - buf->bs_ino = ino; - buf->bs_mode = be16_to_cpu(dic->di_mode); - buf->bs_uid = be32_to_cpu(dic->di_uid); - buf->bs_gid = be32_to_cpu(dic->di_gid); - buf->bs_size = be64_to_cpu(dic->di_size); - buf->bs_atime.tv_sec = be32_to_cpu(dic->di_atime.t_sec); - buf->bs_atime.tv_nsec = be32_to_cpu(dic->di_atime.t_nsec); - buf->bs_mtime.tv_sec = be32_to_cpu(dic->di_mtime.t_sec); - buf->bs_mtime.tv_nsec = be32_to_cpu(dic->di_mtime.t_nsec); - buf->bs_ctime.tv_sec = be32_to_cpu(dic->di_ctime.t_sec); - buf->bs_ctime.tv_nsec = be32_to_cpu(dic->di_ctime.t_nsec); - buf->bs_xflags = xfs_dic2xflags(dic); - buf->bs_extsize = be32_to_cpu(dic->di_extsize) << mp->m_sb.sb_blocklog; - buf->bs_extents = be32_to_cpu(dic->di_nextents); - buf->bs_gen = be32_to_cpu(dic->di_gen); - memset(buf->bs_pad, 0, sizeof(buf->bs_pad)); - buf->bs_dmevmask = be32_to_cpu(dic->di_dmevmask); - buf->bs_dmstate = be16_to_cpu(dic->di_dmstate); - buf->bs_aextents = be16_to_cpu(dic->di_anextents); - buf->bs_forkoff = XFS_DFORK_BOFF(dic); + if (!error) + *stat = BULKSTAT_RV_DIDONE; - switch (dic->di_format) { - case XFS_DINODE_FMT_DEV: - buf->bs_rdev = xfs_dinode_get_rdev(dic); - buf->bs_blksize = BLKDEV_IOSIZE; - buf->bs_blocks = 0; - break; - case XFS_DINODE_FMT_LOCAL: - case XFS_DINODE_FMT_UUID: - buf->bs_rdev = 0; - buf->bs_blksize = mp->m_sb.sb_blocksize; - buf->bs_blocks = 0; - break; - case XFS_DINODE_FMT_EXTENTS: - case XFS_DINODE_FMT_BTREE: - buf->bs_rdev = 0; - buf->bs_blksize = mp->m_sb.sb_blocksize; - buf->bs_blocks = be64_to_cpu(dic->di_nblocks); - break; - } + out_free: + kmem_free(buf); + return error; } /* Return 0 on success or positive error */ @@ -213,118 +169,19 @@ xfs_bulkstat_one_fmt( return 0; } -/* - * Return stat information for one inode. - * Return 0 if ok, else errno. - */ -int /* error status */ -xfs_bulkstat_one_int( - xfs_mount_t *mp, /* mount point for filesystem */ - xfs_ino_t ino, /* inode number to get data for */ - void __user *buffer, /* buffer to place output in */ - int ubsize, /* size of buffer */ - bulkstat_one_fmt_pf formatter, /* formatter, copy to user */ - xfs_daddr_t bno, /* starting bno of inode cluster */ - int *ubused, /* bytes used by me */ - void *dibuff, /* on-disk inode buffer */ - int *stat) /* BULKSTAT_RV_... */ -{ - xfs_bstat_t *buf; /* return buffer */ - int error = 0; /* error value */ - xfs_dinode_t *dip; /* dinode inode pointer */ - - dip = (xfs_dinode_t *)dibuff; - *stat = BULKSTAT_RV_NOTHING; - - if (!buffer || xfs_internal_inum(mp, ino)) - return XFS_ERROR(EINVAL); - - buf = kmem_alloc(sizeof(*buf), KM_SLEEP); - - if (dip == NULL) { - /* We're not being passed a pointer to a dinode. This happens - * if BULKSTAT_FG_IGET is selected. Do the iget. - */ - error = xfs_bulkstat_one_iget(mp, ino, bno, buf, stat); - if (error) - goto out_free; - } else { - xfs_bulkstat_one_dinode(mp, ino, dip, buf); - } - - error = formatter(buffer, ubsize, ubused, buf); - if (error) - goto out_free; - - *stat = BULKSTAT_RV_DIDONE; - - out_free: - kmem_free(buf); - return error; -} - int xfs_bulkstat_one( xfs_mount_t *mp, /* mount point for filesystem */ xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* buffer to place output in */ int ubsize, /* size of buffer */ - void *private_data, /* my private data */ xfs_daddr_t bno, /* starting bno of inode cluster */ int *ubused, /* bytes used by me */ - void *dibuff, /* on-disk inode buffer */ int *stat) /* BULKSTAT_RV_... */ { return xfs_bulkstat_one_int(mp, ino, buffer, ubsize, xfs_bulkstat_one_fmt, bno, - ubused, dibuff, stat); -} - -/* - * Test to see whether we can use the ondisk inode directly, based - * on the given bulkstat flags, filling in dipp accordingly. - * Returns zero if the inode is dodgey. - */ -STATIC int -xfs_bulkstat_use_dinode( - xfs_mount_t *mp, - int flags, - xfs_buf_t *bp, - int clustidx, - xfs_dinode_t **dipp) -{ - xfs_dinode_t *dip; - unsigned int aformat; - - *dipp = NULL; - if (!bp || (flags & BULKSTAT_FG_IGET)) - return 1; - dip = (xfs_dinode_t *) - xfs_buf_offset(bp, clustidx << mp->m_sb.sb_inodelog); - /* - * Check the buffer containing the on-disk inode for di_mode == 0. - * This is to prevent xfs_bulkstat from picking up just reclaimed - * inodes that have their in-core state initialized but not flushed - * to disk yet. This is a temporary hack that would require a proper - * fix in the future. - */ - if (be16_to_cpu(dip->di_magic) != XFS_DINODE_MAGIC || - !XFS_DINODE_GOOD_VERSION(dip->di_version) || - !dip->di_mode) - return 0; - if (flags & BULKSTAT_FG_QUICK) { - *dipp = dip; - return 1; - } - /* BULKSTAT_FG_INLINE: if attr fork is local, or not there, use it */ - aformat = dip->di_aformat; - if ((XFS_DFORK_Q(dip) == 0) || - (aformat == XFS_DINODE_FMT_LOCAL) || - (aformat == XFS_DINODE_FMT_EXTENTS && !dip->di_anextents)) { - *dipp = dip; - return 1; - } - return 1; + ubused, stat); } #define XFS_BULKSTAT_UBLEFT(ubleft) ((ubleft) >= statstruct_size) @@ -338,10 +195,8 @@ xfs_bulkstat( xfs_ino_t *lastinop, /* last inode returned */ int *ubcountp, /* size of buffer/count returned */ bulkstat_one_pf formatter, /* func that'd fill a single buf */ - void *private_data,/* private data for formatter */ size_t statstruct_size, /* sizeof struct filling */ char __user *ubuffer, /* buffer with inode stats */ - int flags, /* defined in xfs_itable.h */ int *done) /* 1 if there are more stats to get */ { xfs_agblock_t agbno=0;/* allocation group block number */ @@ -376,14 +231,12 @@ xfs_bulkstat( int ubelem; /* spaces used in user's buffer */ int ubused; /* bytes used by formatter */ xfs_buf_t *bp; /* ptr to on-disk inode cluster buf */ - xfs_dinode_t *dip; /* ptr into bp for specific inode */ /* * Get the last inode value, see if there's nothing to do. */ ino = (xfs_ino_t)*lastinop; lastino = ino; - dip = NULL; agno = XFS_INO_TO_AGNO(mp, ino); agino = XFS_INO_TO_AGINO(mp, ino); if (agno >= mp->m_sb.sb_agcount || @@ -608,37 +461,6 @@ xfs_bulkstat( irbp->ir_startino) + ((chunkidx & nimask) >> mp->m_sb.sb_inopblog); - - if (flags & (BULKSTAT_FG_QUICK | - BULKSTAT_FG_INLINE)) { - int offset; - - ino = XFS_AGINO_TO_INO(mp, agno, - agino); - bno = XFS_AGB_TO_DADDR(mp, agno, - agbno); - - /* - * Get the inode cluster buffer - */ - if (bp) - xfs_buf_relse(bp); - - error = xfs_inotobp(mp, NULL, ino, &dip, - &bp, &offset, - XFS_IGET_BULKSTAT); - - if (!error) - clustidx = offset / mp->m_sb.sb_inodesize; - if (XFS_TEST_ERROR(error != 0, - mp, XFS_ERRTAG_BULKSTAT_READ_CHUNK, - XFS_RANDOM_BULKSTAT_READ_CHUNK)) { - bp = NULL; - ubleft = 0; - rval = error; - break; - } - } } ino = XFS_AGINO_TO_INO(mp, agno, agino); bno = XFS_AGB_TO_DADDR(mp, agno, agbno); @@ -654,35 +476,13 @@ xfs_bulkstat( * when the chunk is used up. */ irbp->ir_freecount++; - if (!xfs_bulkstat_use_dinode(mp, flags, bp, - clustidx, &dip)) { - lastino = ino; - continue; - } - /* - * If we need to do an iget, cannot hold bp. - * Drop it, until starting the next cluster. - */ - if ((flags & BULKSTAT_FG_INLINE) && !dip) { - if (bp) - xfs_buf_relse(bp); - bp = NULL; - } /* * Get the inode and fill in a single buffer. - * BULKSTAT_FG_QUICK uses dip to fill it in. - * BULKSTAT_FG_IGET uses igets. - * BULKSTAT_FG_INLINE uses dip if we have an - * inline attr fork, else igets. - * See: xfs_bulkstat_one & xfs_dm_bulkstat_one. - * This is also used to count inodes/blks, etc - * in xfs_qm_quotacheck. */ ubused = statstruct_size; - error = formatter(mp, ino, ubufp, - ubleft, private_data, - bno, &ubused, dip, &fmterror); + error = formatter(mp, ino, ubufp, ubleft, bno, + &ubused, &fmterror); if (fmterror == BULKSTAT_RV_NOTHING) { if (error && error != ENOENT && error != EINVAL) { @@ -775,7 +575,7 @@ xfs_bulkstat_single( ino = (xfs_ino_t)*lastinop; error = xfs_bulkstat_one(mp, ino, buffer, sizeof(xfs_bstat_t), - NULL, 0, NULL, NULL, &res); + 0, NULL, &res); if (error) { /* * Special case way failed, do it the "long" way @@ -784,8 +584,7 @@ xfs_bulkstat_single( (*lastinop)--; count = 1; if (xfs_bulkstat(mp, lastinop, &count, xfs_bulkstat_one, - NULL, sizeof(xfs_bstat_t), buffer, - BULKSTAT_FG_IGET, done)) + sizeof(xfs_bstat_t), buffer, done)) return error; if (count == 0 || (xfs_ino_t)*lastinop != ino) return error == EFSCORRUPTED ? diff --git a/fs/xfs/xfs_itable.h b/fs/xfs/xfs_itable.h index 20792bf..fea0339 100644 --- a/fs/xfs/xfs_itable.h +++ b/fs/xfs/xfs_itable.h @@ -27,10 +27,8 @@ typedef int (*bulkstat_one_pf)(struct xfs_mount *mp, xfs_ino_t ino, void __user *buffer, int ubsize, - void *private_data, xfs_daddr_t bno, int *ubused, - void *dip, int *stat); /* @@ -41,13 +39,6 @@ typedef int (*bulkstat_one_pf)(struct xfs_mount *mp, #define BULKSTAT_RV_GIVEUP 2 /* - * Values for bulkstat flag argument. - */ -#define BULKSTAT_FG_IGET 0x1 /* Go through the buffer cache */ -#define BULKSTAT_FG_QUICK 0x2 /* No iget, walk the dinode cluster */ -#define BULKSTAT_FG_INLINE 0x4 /* No iget if inline attrs */ - -/* * Return stat information in bulk (by-inode) for the filesystem. */ int /* error status */ @@ -56,10 +47,8 @@ xfs_bulkstat( xfs_ino_t *lastino, /* last inode returned */ int *count, /* size of buffer/count returned */ bulkstat_one_pf formatter, /* func that'd fill a single buf */ - void *private_data, /* private data for formatter */ size_t statstruct_size,/* sizeof struct that we're filling */ char __user *ubuffer,/* buffer with inode stats */ - int flags, /* flag to control access method */ int *done); /* 1 if there are more stats to get */ int @@ -84,7 +73,6 @@ xfs_bulkstat_one_int( bulkstat_one_fmt_pf formatter, xfs_daddr_t bno, int *ubused, - void *dibuff, int *stat); int @@ -93,10 +81,8 @@ xfs_bulkstat_one( xfs_ino_t ino, void __user *buffer, int ubsize, - void *private_data, xfs_daddr_t bno, int *ubused, - void *dibuff, int *stat); typedef int (*inumbers_fmt_pf)( -- 1.7.1 From BATV+f7366215ba6f319846b3+2490+infradead.org+hch@bombadil.srs.infradead.org Fri Jun 18 03:19:55 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5I8Jrb0215133 for ; Fri, 18 Jun 2010 03:19:55 -0500 X-ASG-Debug-ID: 1276849351-51a9032f0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id EC5FC1B7666D for ; Fri, 18 Jun 2010 01:22:31 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id Xr9YSVo48fhRFBsr for ; Fri, 18 Jun 2010 01:22:31 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OPWqL-00006K-Uq; Fri, 18 Jun 2010 08:22:29 +0000 Date: Fri, 18 Jun 2010 04:22:29 -0400 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com, security@kernel.org X-ASG-Orig-Subj: Re: [PATCH 4/4] xfs: remove block number from inode lookup code Subject: Re: [PATCH 4/4] xfs: remove block number from inode lookup code Message-ID: <20100618082229.GA30787@infradead.org> References: <1276846374-23916-1-git-send-email-david@fromorbit.com> <1276846374-23916-5-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1276846374-23916-5-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1276849351 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean > - ip->i_imap.im_blkno = bno; > + ip->i_imap.im_blkno = 0; > error = xfs_imap(mp, tp, ip->i_ino, &ip->i_imap, iget_flags); The im_blkno initialization before calling xfs_imap can be removed now. From eflorac@intellique.com Fri Jun 18 06:18:36 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,MIME_8BIT_HEADER autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5IBIaSg221015 for ; Fri, 18 Jun 2010 06:18:36 -0500 X-ASG-Debug-ID: 1276860069-32da03c20000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp4-g21.free.fr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id B77313E44B4 for ; Fri, 18 Jun 2010 04:21:12 -0700 (PDT) Received: from smtp4-g21.free.fr (smtp4-g21.free.fr [212.27.42.4]) by cuda.sgi.com with ESMTP id SswQBzOpNLVYzHb1 for ; Fri, 18 Jun 2010 04:21:12 -0700 (PDT) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) by smtp4-g21.free.fr (Postfix) with ESMTP id E41A54C807F; Fri, 18 Jun 2010 13:21:04 +0200 (CEST) Date: Fri, 18 Jun 2010 13:21:08 +0200 From: Emmanuel Florac To: Thomas =?ISO-8859-1?Q?F=F8rde?= Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS Message-ID: <20100618132108.790921cf@harpe.intellique.com> In-Reply-To: References: Organization: Intellique X-Mailer: Claws Mail 3.7.3 (GTK+ 2.16.6; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: smtp4-g21.free.fr[212.27.42.4] X-Barracuda-Start-Time: 1276860074 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32861 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Le Thu, 17 Jun 2010 15:18:26 +0200 Thomas F=F8rde =E9crivait: > i have run xfs_check without any verbos information given > i have run xfs_repair without any information errors fixed. That's unfortunate that you didn't post here before doing irreparable=20 damage. Any activity to the filesystem may delete permanently data, so you should stop using it completely until done with the rescue operations and unmount it. >=20 > when i try to mount the XFS filesystem of 10TB, my 7.8 TB of data is > now gone. >=20 > before: /dev/sdf1 10527858560 8801101708 > 1726756852 84% /D5 > after: /dev/sdf1 10527858560 528 > 10527858032 1% /D5 >=20 Some old versions of xfs_repair may fail on big FS. You didn't mention which version you're using, which distribution and which kernel. The hardware setup may be important, too. > help, where did my data go, and how can i get it back. Apparently xfs_repair deleted it because it was corrupt (alas, happen sometimes with xfs_repair before 2.8). The best thing to do is to get it back from backups. I suppose that you have no backup (people don't do any backup until they lose important data, which always occurs). If you have no backups, your last hope is to use a tool like photorec to find your data on the raw device; however it won't reconstruct the metadata (no names, no folders, no hierarchy, no user rights). BTW you need some other place to store the newly discovered files with at least as much space (7.8 TB). My condolences. I once lost 13TB and see, I'm not dead. You'll get over it somehow. --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From thomas.forde@bergenofs.no Fri Jun 18 06:24:28 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: **** X-Spam-Status: No, score=4.2 required=5.0 tests=BAYES_50,HTML_MESSAGE, J_CHICKENPOX_44,MIME_8BIT_HEADER autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5IBORbX221198 for ; Fri, 18 Jun 2010 06:24:27 -0500 X-ASG-Debug-ID: 1276860652-0d3101ab0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from deframx28.softcom.dk (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 0CD1A10F5A18 for ; Fri, 18 Jun 2010 04:30:53 -0700 (PDT) Received: from deframx28.softcom.dk (deframx28.softcom.dk [87.230.83.86]) by cuda.sgi.com with ESMTP id jipqQj2rKRoRFmjB for ; Fri, 18 Jun 2010 04:30:53 -0700 (PDT) Received: (qmail 26933 invoked by uid 74); 18 Jun 2010 11:27:03 -0000 Received: from 74.82-134-78.bkkb.no (82.134.78.74) by deframx28.softcom.dk (envelope-from ) with ESMTP. tag msg.1276860422.998174.22827 (Processed in 0.191475 secs); 18 Jun 2010 11:27:03 -0000 X-SoftScan-Status: clean In-Reply-To: <20100618132108.790921cf@harpe.intellique.com> References: <20100618132108.790921cf@harpe.intellique.com> To: Emmanuel Florac Cc: xfs@oss.sgi.com MIME-Version: 1.0 X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS X-KeepSent: 450B8187:BD5256B0-C1257746:003E79FF; type=4; name=$KeepSent X-Mailer: Lotus Notes Release 8.5.1 FP3 May 24, 2010 Message-ID: From: =?ISO-8859-1?Q?Thomas_F=F8rde?= Date: Fri, 18 Jun 2010 13:27:01 +0200 X-MIMETrack: Serialize by Router on LNBOS01/BOS(Release 8.5.1|September 28, 2009) at 18.06.2010 13:27:02, Serialize complete at 18.06.2010 13:27:02 Content-Type: multipart/alternative; boundary="=_alternative 003EE62CC1257746_=" X-Barracuda-Connect: deframx28.softcom.dk[87.230.83.86] X-Barracuda-Start-Time: 1276860654 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32861 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean This is a multipart message in MIME format. --=_alternative 003EE62CC1257746_= Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable both the xfs=5Fcheck and xfs=5FReapir was done from a unmounted system, the= =20 system has not been mounted or used since. its a IBM x3650 with stadnard 2x73GB disk. [root@strmng04 ~]# cat /etc/issue CentOS release 4.7 (Final) Kernel \r on an \m [root@strmng04 ~]# uname -a Linux strmng04 2.6.9-78.0.5.ELsmp #1 SMP Wed Oct 8 07:06:30 EDT 2008=20 x86=5F64 x86=5F64 x86=5F64 GNU/Linux there is no backup no, as how to backup 8 TB of data,very expensive tape=20 wise. xfs=5Firecover ias been mentioned to me, so my fingers are crossed. Sincerely ------------------------------------------------------------------- Thomas F=F8rde IT-Manager=20 Mobile +47 90 41 41 90 Fax +47 55 31 67 66 thomas.forde@bergenofs.no www.bergenofs.no ------------------------------------------------------------------- Bergen Oilfield Services AS Address: Nedre Aastveit 12 NO-5106 Ovre Ervik ------------------------------------------------------------------- Please consider the environment before printing From: Emmanuel Florac To: Thomas F=F8rde Cc: xfs@oss.sgi.com Date: 18.06.2010 13:21 Subject: Re: Help with XFS Le Thu, 17 Jun 2010 15:18:26 +0200 Thomas F=F8rde =E9crivait: > i have run xfs=5Fcheck without any verbos information given > i have run xfs=5Frepair without any information errors fixed. That's unfortunate that you didn't post here before doing irreparable=20 damage. Any activity to the filesystem may delete permanently data, so you should stop using it completely until done with the rescue operations and unmount it. >=20 > when i try to mount the XFS filesystem of 10TB, my 7.8 TB of data is > now gone. >=20 > before: /dev/sdf1 10527858560 8801101708 > 1726756852 84% /D5 > after: /dev/sdf1 10527858560 528 > 10527858032 1% /D5 >=20 Some old versions of xfs=5Frepair may fail on big FS. You didn't mention which version you're using, which distribution and which kernel. The hardware setup may be important, too. > help, where did my data go, and how can i get it back. Apparently xfs=5Frepair deleted it because it was corrupt (alas, happen sometimes with xfs=5Frepair before 2.8). The best thing to do is to get it back from backups. I suppose that you have no backup (people don't do any backup until they lose important data, which always occurs). If you have no backups, your last hope is to use a tool like photorec to find your data on the raw device; however it won't reconstruct the metadata (no names, no folders, no hierarchy, no user rights). BTW you need some other place to store the newly discovered files with at least as much space (7.8 TB). My condolences. I once lost 13TB and see, I'm not dead. You'll get over it somehow. --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ --=_alternative 003EE62CC1257746_= Content-Type: text/html; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable both the xfs=5Fcheck and xfs=5FReapir wa= s done from a unmounted system, the system has not been mounted or used since.

its a IBM x3650 with stadnard 2x73GB disk.

[root@strmng04 ~]# cat /etc/issue
CentOS release 4.7 (Final)
Kernel \r on an \m

[root@strmng04 ~]# uname -a
Linux strmng04 2.6.9-78.0.5.ELsmp #1 SMP Wed Oct 8 07:06:30 EDT 2008 x86=5F64 x86=5F64 x86=5F64 GNU/Linux


there is no backup no, as how to bac= kup 8 TB of data,very expensive tape wise.

xfs=5Firecover ias been mentioned to= me, so my fingers are crossed.


Sincerely
-------------------------------------------------------------------
Thomas F=F8rde    IT-Manager
Mobile +47 90 41 41 90   Fax +47 55 31 67 66
thomas.forde@bergenofs.no     <= font size=3D2 face=3D"sans-serif">www.bergenofs.no
-------------------------------------------------------------------
Bergen Oilfield Services AS
Address: Nedre Aastveit 12    NO-5106 Ovre Ervik
-------------------------------------------------------------------

Please consider the environment before printing



From:     =    Emmanuel Florac <eflorac= @intellique.com>
To:     &n= bsp;  Thomas F=F8rde <thomas.f= orde@bergenofs.no>
Cc:     &n= bsp;  xfs@oss.sgi.com
Date:     =    18.06.2010 13:21
Subject:   &nbs= p;    Re: Help with XFS



Le Thu, 17 Jun 2010 15:18:26 +0200
Thomas F=F8rde <thomas.forde@bergenofs.no> =E9crivait:

> i have run xfs=5Fcheck without any verbos information given
> i have run xfs=5Frepair without any information errors fixed.

That's unfortunate that you didn't post here before doing irreparable
damage. Any activity to the filesystem may delete permanently data, so
you should stop using it completely until done with the rescue
operations and unmount it.

>
> when i try to mount the XFS filesystem of 10TB, my 7.8 TB of data is
> now gone.
>
> before:         /dev/sdf1            10527858560 8801101708
> 1726756852 84% /D5
> after:          /dev/sdf1            10527858560       528
> 10527858032 1% /D5
>

Some old versions of xfs=5Frepair may fail on big FS. You didn't mention
which version you're using, which distribution and which kernel. The
hardware setup may be important, too.

> help, where did my data go, and how can i get it back.

Apparently xfs=5Frepair deleted it because it was corrupt (alas, happen
sometimes with xfs=5Frepair before 2.8). The best thing to do is to get it<= br> back from backups. I suppose that you have no backup (people don't do
any backup until they lose important data, which always occurs).

If you have no backups, your last hope is to use a tool like photorec
to find your data on the raw device; however it won't reconstruct the
metadata (no names, no folders, no hierarchy, no user rights). BTW you
need some other place to store the newly discovered files with at least
as much space (7.8 TB).

My condolences. I once lost 13TB and see, I'm not dead. You'll get over
it somehow.
--
------------------------------------------------------------------------
Emmanuel Florac     |   Direction technique
                   |   Intellique
                   |                 <eflorac@intellique.com>
                   |   +33 1 78 94 84 02
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--=_alternative 003EE62CC1257746_=-- From eflorac@intellique.com Fri Jun 18 06:32:23 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.5 required=5.0 tests=BAYES_00,J_CHICKENPOX_44, MIME_8BIT_HEADER autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5IBWNK3221535 for ; Fri, 18 Jun 2010 06:32:23 -0500 X-ASG-Debug-ID: 1276861127-09db026f0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp4-g21.free.fr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 9E6E514A69F5 for ; Fri, 18 Jun 2010 04:38:48 -0700 (PDT) Received: from smtp4-g21.free.fr (smtp4-g21.free.fr [212.27.42.4]) by cuda.sgi.com with ESMTP id W0yrAExCewCRX7AG for ; Fri, 18 Jun 2010 04:38:48 -0700 (PDT) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) by smtp4-g21.free.fr (Postfix) with ESMTP id F2C434C8037; Fri, 18 Jun 2010 13:34:53 +0200 (CEST) Date: Fri, 18 Jun 2010 13:34:58 +0200 From: Emmanuel Florac To: Thomas =?ISO-8859-1?Q?F=F8rde?= Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS Message-ID: <20100618133458.6640ce96@harpe.intellique.com> In-Reply-To: References: <20100618132108.790921cf@harpe.intellique.com> Organization: Intellique X-Mailer: Claws Mail 3.7.3 (GTK+ 2.16.6; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: smtp4-g21.free.fr[212.27.42.4] X-Barracuda-Start-Time: 1276861130 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32863 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Le Fri, 18 Jun 2010 13:27:01 +0200 Thomas F=F8rde =E9crivait: > both the xfs_check and xfs_Reapir was done from a unmounted system, > the system has not been mounted or used since. That's good. Did you run xfs_repair -n first ? Did you run=20 xfs_repair -L afterwards? > its a IBM x3650 with stadnard 2x73GB disk. But what about the RAID array?=20 =20 > [root@strmng04 ~]# cat /etc/issue > CentOS release 4.7 (Final) > Kernel \r on an \m >=20 > [root@strmng04 ~]# uname -a > Linux strmng04 2.6.9-78.0.5.ELsmp #1 SMP Wed Oct 8 07:06:30 EDT 2008=20 > x86_64 x86_64 x86_64 GNU/Linux >=20 >=20 > there is no backup no, as how to backup 8 TB of data,very expensive > tape wise. You could have a disk backup on cheaper drives. And current tapes are 800 GB (LTO-3) or 1.5 TB (LTO-4), and libraries are cheaper nowadays. > xfs_irecover ias been mentioned to me, so my fingers are crossed. >=20 If your data is a huge bunch of media files or similar, photorec really can help you as a very last resort, though you'll have to manually sort through all this data... good luck, --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From BATV+f7366215ba6f319846b3+2490+infradead.org+hch@bombadil.srs.infradead.org Fri Jun 18 06:39:20 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5IBdIqq221756 for ; Fri, 18 Jun 2010 06:39:20 -0500 X-ASG-Debug-ID: 1276861316-22b101750000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 595ED1E10ABB for ; Fri, 18 Jun 2010 04:41:56 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id GVmYJsndoYS3Kjcs for ; Fri, 18 Jun 2010 04:41:56 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OPZxM-00068X-Ml; Fri, 18 Jun 2010 11:41:56 +0000 Date: Fri, 18 Jun 2010 07:41:56 -0400 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com, security@kernel.org X-ASG-Orig-Subj: Re: [PATCH 2/4] xfs: validate untrusted inode numbers during lookup Subject: Re: [PATCH 2/4] xfs: validate untrusted inode numbers during lookup Message-ID: <20100618114156.GA5417@infradead.org> References: <1276846374-23916-1-git-send-email-david@fromorbit.com> <1276846374-23916-3-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1276846374-23916-3-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1276861317 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jun 18, 2010 at 05:32:52PM +1000, Dave Chinner wrote: > +static int > +xfs_imap_lookup( STATIC to keep the gcc inliner from overdoing thing? > + xfs_mount_t *mp, > + xfs_trans_t *tp, > +{ > + xfs_inobt_rec_incore_t rec; > + xfs_btree_cur_t *cur; > + xfs_buf_t *agbp; Please use the struct versions of these instead of the typedefs. > +#ifdef DEBUG > + xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: " > + "xfs_inobt_get_rec() failed"); > +#endif /* DEBUG */ > + error = XFS_ERROR(EINVAL); No need to print these even for debug kernels I think. And even then we shouldn't do it if the untrusted flag is set. > + } > +error0: I'd just call it out, or replace the goto by and if/else From BATV+f7366215ba6f319846b3+2490+infradead.org+hch@bombadil.srs.infradead.org Fri Jun 18 06:40:15 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5IBeF2P221808 for ; Fri, 18 Jun 2010 06:40:15 -0500 X-ASG-Debug-ID: 1276861373-0161033c0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 223301E10AC7 for ; Fri, 18 Jun 2010 04:42:54 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id FrwP5Y2C6DqSIDc4 for ; Fri, 18 Jun 2010 04:42:54 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OPZyH-0006Es-Ql; Fri, 18 Jun 2010 11:42:53 +0000 Date: Fri, 18 Jun 2010 07:42:53 -0400 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com, security@kernel.org X-ASG-Orig-Subj: Re: [PATCH 3/4] xfs: rename XFS_IGET_BULKSTAT to XFS_IGET_UNTRUSTED Subject: Re: [PATCH 3/4] xfs: rename XFS_IGET_BULKSTAT to XFS_IGET_UNTRUSTED Message-ID: <20100618114253.GB5417@infradead.org> References: <1276846374-23916-1-git-send-email-david@fromorbit.com> <1276846374-23916-4-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1276846374-23916-4-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1276861374 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jun 18, 2010 at 05:32:53PM +1000, Dave Chinner wrote: > /* no diagnostics for bulkstat, ino comes from userspace */ > - if (flags & XFS_IGET_BULKSTAT) > + if (flags & XFS_IGET_UNTRUSTED) The comment could use an update as well. From thomas.forde@bergenofs.no Fri Jun 18 06:41:26 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: **** X-Spam-Status: No, score=4.2 required=5.0 tests=BAYES_50,HTML_MESSAGE, J_CHICKENPOX_44,MIME_8BIT_HEADER autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5IBfQM8221872 for ; Fri, 18 Jun 2010 06:41:26 -0500 X-ASG-Debug-ID: 1276861442-50d902690000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from deframx28.softcom.dk (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id ACB633E474B for ; Fri, 18 Jun 2010 04:44:02 -0700 (PDT) Received: from deframx28.softcom.dk (deframx28.softcom.dk [87.230.83.86]) by cuda.sgi.com with ESMTP id 3j8q0d2avxvAWb10 for ; Fri, 18 Jun 2010 04:44:02 -0700 (PDT) Received: (qmail 5814 invoked by uid 74); 18 Jun 2010 11:44:01 -0000 Received: from 74.82-134-78.bkkb.no (82.134.78.74) by deframx28.softcom.dk (envelope-from ) with ESMTP. tag msg.1276861439.700196.5849 (Processed in 2.131653 secs); 18 Jun 2010 11:44:01 -0000 X-SoftScan-Status: clean In-Reply-To: <20100618133458.6640ce96@harpe.intellique.com> References: <20100618132108.790921cf@harpe.intellique.com> <20100618133458.6640ce96@harpe.intellique.com> To: Emmanuel Florac Cc: xfs@oss.sgi.com MIME-Version: 1.0 X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS X-KeepSent: 0E234D8E:F048FF4D-C1257746:003FC10E; type=4; name=$KeepSent X-Mailer: Lotus Notes Release 8.5.1 FP3 May 24, 2010 Message-ID: From: =?ISO-8859-1?Q?Thomas_F=F8rde?= Date: Fri, 18 Jun 2010 13:43:57 +0200 X-MIMETrack: Serialize by Router on LNBOS01/BOS(Release 8.5.1|September 28, 2009) at 18.06.2010 13:43:58, Serialize complete at 18.06.2010 13:43:58 Content-Type: multipart/alternative; boundary="=_alternative 00407332C1257746_=" X-Barracuda-Connect: deframx28.softcom.dk[87.230.83.86] X-Barracuda-Start-Time: 1276861443 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32861 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean This is a multipart message in MIME format. --=_alternative 00407332C1257746_= Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable the raid array is a FC SAN array consisting of DS4700 unit with EXP810=20 expansion system xfs=5Fcheck first, xfs=5Frepair -n, and xfs=5Frepair xfs=5FRepair -L has not been used. its seismisc processed data, large text files. Sincerely ------------------------------------------------------------------- Thomas F=F8rde IT-Manager=20 Mobile +47 90 41 41 90 Fax +47 55 31 67 66 thomas.forde@bergenofs.no www.bergenofs.no ------------------------------------------------------------------- Bergen Oilfield Services AS Address: Nedre Aastveit 12 NO-5106 Ovre Ervik ------------------------------------------------------------------- Please consider the environment before printing From: Emmanuel Florac To: Thomas F=F8rde Cc: xfs@oss.sgi.com Date: 18.06.2010 13:35 Subject: Re: Help with XFS Le Fri, 18 Jun 2010 13:27:01 +0200 Thomas F=F8rde =E9crivait: > both the xfs=5Fcheck and xfs=5FReapir was done from a unmounted system, > the system has not been mounted or used since. That's good. Did you run xfs=5Frepair -n first ? Did you run=20 xfs=5Frepair -L afterwards? > its a IBM x3650 with stadnard 2x73GB disk. But what about the RAID array?=20 =20 > [root@strmng04 ~]# cat /etc/issue > CentOS release 4.7 (Final) > Kernel \r on an \m >=20 > [root@strmng04 ~]# uname -a > Linux strmng04 2.6.9-78.0.5.ELsmp #1 SMP Wed Oct 8 07:06:30 EDT 2008=20 > x86=5F64 x86=5F64 x86=5F64 GNU/Linux >=20 >=20 > there is no backup no, as how to backup 8 TB of data,very expensive > tape wise. You could have a disk backup on cheaper drives. And current tapes are 800 GB (LTO-3) or 1.5 TB (LTO-4), and libraries are cheaper nowadays. > xfs=5Firecover ias been mentioned to me, so my fingers are crossed. >=20 If your data is a huge bunch of media files or similar, photorec really can help you as a very last resort, though you'll have to manually sort through all this data... good luck, --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ --=_alternative 00407332C1257746_= Content-Type: text/html; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable the raid array is a FC SAN array consist= ing of DS4700 unit with EXP810 expansion system

xfs=5Fcheck first, xfs=5Frepair -n, = and xfs=5Frepair

xfs=5FRepair -L has not been used.

its seismisc processed data, large t= ext files.



Sincerely
-------------------------------------------------------------------
Thomas F=F8rde    IT-Manager
Mobile +47 90 41 41 90   Fax +47 55 31 67 66
thomas.forde@bergenofs.no     <= font size=3D2 face=3D"sans-serif">www.bergenofs.no
-------------------------------------------------------------------
Bergen Oilfield Services AS
Address: Nedre Aastveit 12    NO-5106 Ovre Ervik
-------------------------------------------------------------------

Please consider the environment before printing



From:     =    Emmanuel Florac <eflorac= @intellique.com>
To:     &n= bsp;  Thomas F=F8rde <thomas.f= orde@bergenofs.no>
Cc:     &n= bsp;  xfs@oss.sgi.com
Date:     =    18.06.2010 13:35
Subject:   &nbs= p;    Re: Help with XFS



Le Fri, 18 Jun 2010 13:27:01 +0200
Thomas F=F8rde <thomas.forde@bergenofs.no> =E9crivait:

> both the xfs=5Fcheck and xfs=5FReapir was done from a unmounted system= ,
> the system has not been mounted or used since.

That's good. Did you run xfs=5Frepair -n first ? Did you run
xfs=5Frepair -L afterwards?

> its a IBM x3650 with stadnard 2x73GB disk.

But what about the RAID array?

> [root@strmng04 ~]# cat /etc/issue
> CentOS release 4.7 (Final)
> Kernel \r on an \m
>
> [root@strmng04 ~]# uname -a
> Linux strmng04 2.6.9-78.0.5.ELsmp #1 SMP Wed Oct 8 07:06:30 EDT 2008
> x86=5F64 x86=5F64 x86=5F64 GNU/Linux
>
>
> there is no backup no, as how to backup 8 TB of data,very expensive
> tape wise.

You could have a disk backup on cheaper drives. And current tapes are
800 GB (LTO-3) or 1.5 TB (LTO-4), and libraries are cheaper nowadays.

> xfs=5Firecover ias been mentioned to me, so my fingers are crossed.
>

If your data is a huge bunch of media files or similar, photorec really
can help you as a very last resort, though you'll have to manually sort
through all this data...

good luck,
--
------------------------------------------------------------------------
Emmanuel Florac     |   Direction technique
                   |   Intellique
                   |                 <eflorac@intellique.com>
                   |   +33 1 78 94 84 02
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--=_alternative 00407332C1257746_=-- From eflorac@intellique.com Fri Jun 18 06:57:55 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,MIME_8BIT_HEADER autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5IBvsIp222671 for ; Fri, 18 Jun 2010 06:57:55 -0500 X-ASG-Debug-ID: 1276862427-50d2030c0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp4-g21.free.fr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 2F10D3E4627 for ; Fri, 18 Jun 2010 05:00:31 -0700 (PDT) Received: from smtp4-g21.free.fr (smtp4-g21.free.fr [212.27.42.4]) by cuda.sgi.com with ESMTP id MVALPzKifeHv8RCE for ; Fri, 18 Jun 2010 05:00:31 -0700 (PDT) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) by smtp4-g21.free.fr (Postfix) with ESMTP id A7BE44C809B; Fri, 18 Jun 2010 14:00:23 +0200 (CEST) Date: Fri, 18 Jun 2010 14:00:28 +0200 From: Emmanuel Florac To: Thomas =?ISO-8859-1?Q?F=F8rde?= Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS Message-ID: <20100618140028.05650928@harpe.intellique.com> In-Reply-To: References: <20100618132108.790921cf@harpe.intellique.com> <20100618133458.6640ce96@harpe.intellique.com> Organization: Intellique X-Mailer: Claws Mail 3.7.3 (GTK+ 2.16.6; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: smtp4-g21.free.fr[212.27.42.4] X-Barracuda-Start-Time: 1276862433 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32864 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Le Fri, 18 Jun 2010 13:43:57 +0200 Thomas F=C3=B8rde =C3=A9crivait: > the raid array is a FC SAN array consisting of DS4700 unit with > EXP810 expansion system >=20 > xfs_check first, xfs_repair -n, and xfs_repair >=20 > xfs_Repair -L has not been used. That's fortunate, maybe something can be saved from that. > its seismisc processed data, large text files. I see. Extremely expensive to reproduce...=20 If you know the file structure and the metadata isn't much ineresting, a simple perl or python script can scrap the raw device for the data. I've done it before. I can send you code snippets if you want. Did you have any success compiling xfs_irecover? It's a side note but one of my customers is specialised in seismic data acquisition, and record every data twice on two different RAID-1 systems and always keep at least two copies of everything, plus an on-tape copy... A commodity 16TB NAS costs much less (10000 =E2=82=AC or le= ss) than the data it holds and makes a nice backup system. NOTHING replaces a backup. Your system WILL fail someday (well it has now apparently). --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From thomas.forde@bergenofs.no Fri Jun 18 07:14:54 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: **** X-Spam-Status: No, score=4.1 required=5.0 tests=BAYES_50,HTML_MESSAGE, MIME_8BIT_HEADER autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5ICEsI8223200 for ; Fri, 18 Jun 2010 07:14:54 -0500 X-ASG-Debug-ID: 1276863451-39aa016c0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from deframx28.softcom.dk (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 35ACE1E10EC1 for ; Fri, 18 Jun 2010 05:17:31 -0700 (PDT) Received: from deframx28.softcom.dk (deframx28.softcom.dk [87.230.83.86]) by cuda.sgi.com with ESMTP id TZXaDiSGeKmiy56L for ; Fri, 18 Jun 2010 05:17:31 -0700 (PDT) Received: (qmail 23021 invoked by uid 74); 18 Jun 2010 12:17:30 -0000 Received: from 74.82-134-78.bkkb.no (82.134.78.74) by deframx28.softcom.dk (envelope-from ) with ESMTP. tag msg.1276863450.538722.25300 (Processed in 0.195255 secs); 18 Jun 2010 12:17:30 -0000 X-SoftScan-Status: clean In-Reply-To: <20100618140028.05650928@harpe.intellique.com> References: <20100618132108.790921cf@harpe.intellique.com> <20100618133458.6640ce96@harpe.intellique.com> <20100618140028.05650928@harpe.intellique.com> To: Emmanuel Florac Cc: xfs@oss.sgi.com MIME-Version: 1.0 X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS X-KeepSent: 9654ECF8:CC8A338F-C1257746:00437A9B; type=4; name=$KeepSent X-Mailer: Lotus Notes Release 8.5.1 FP3 May 24, 2010 Message-ID: From: =?ISO-8859-1?Q?Thomas_F=F8rde?= Date: Fri, 18 Jun 2010 14:17:29 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version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5ICjHfR224358 for ; Fri, 18 Jun 2010 07:45:18 -0500 X-ASG-Debug-ID: 1276865275-7fe500310000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from one.firstfloor.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id BFB5814FD752 for ; Fri, 18 Jun 2010 05:47:55 -0700 (PDT) Received: from one.firstfloor.org (one.firstfloor.org [213.235.205.2]) by cuda.sgi.com with ESMTP id 2OUJA94jgudBfvE5 for ; Fri, 18 Jun 2010 05:47:55 -0700 (PDT) Received: from basil.firstfloor.org (p5B3CB38E.dip0.t-ipconnect.de [91.60.179.142]) by one.firstfloor.org (Postfix) with ESMTP id 668231A980C3; Fri, 18 Jun 2010 14:47:53 +0200 (CEST) Received: by basil.firstfloor.org (Postfix, from userid 1000) id D0A2EB1A2C; Fri, 18 Jun 2010 14:47:52 +0200 (CEST) To: Thomas =?iso-8859-1?Q?F=F8rde?= Cc: Emmanuel Florac , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS From: Andi Kleen References: <20100618132108.790921cf@harpe.intellique.com> <20100618133458.6640ce96@harpe.intellique.com> Date: Fri, 18 Jun 2010 14:47:52 +0200 In-Reply-To: ("Thomas =?iso-8859-1?Q?F=F8rde=22's?= message of "Fri\, 18 Jun 2010 13\:43\:57 +0200") Message-ID: <87iq5gv75z.fsf@basil.nowhere.org> User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: one.firstfloor.org[213.235.205.2] X-Barracuda-Start-Time: 1276865275 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32866 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Thomas Førde writes: > the raid array is a FC SAN array consisting of DS4700 unit with EXP810 > expansion system > > xfs_check first, xfs_repair -n, and xfs_repair > > xfs_Repair -L has not been used. > > its seismisc processed data, large text files. I've seen people get text files (source files) back with strings /dev/... If you're lucky it's mostly continous and large and not too hard to sort out. But definitely backups are a good idea next time. RAID is no replacement for backups. -Andi -- ak@linux.intel.com -- Speaking for myself only. From eflorac@intellique.com Fri Jun 18 07:45:47 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,MIME_8BIT_HEADER autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5ICjlVI224381 for ; Fri, 18 Jun 2010 07:45:47 -0500 X-ASG-Debug-ID: 1276865300-7ce702ea0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp4-g21.free.fr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 9F6943E4A03 for ; Fri, 18 Jun 2010 05:48:23 -0700 (PDT) Received: from smtp4-g21.free.fr (smtp4-g21.free.fr [212.27.42.4]) by cuda.sgi.com with ESMTP id 0XXsmOuH6v4RkwdC for ; Fri, 18 Jun 2010 05:48:23 -0700 (PDT) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) by smtp4-g21.free.fr (Postfix) with ESMTP id 4D28C4C80A3; Fri, 18 Jun 2010 14:48:16 +0200 (CEST) Date: Fri, 18 Jun 2010 14:48:21 +0200 From: Emmanuel Florac To: Thomas =?ISO-8859-1?Q?F=F8rde?= Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS Message-ID: <20100618144821.0cab4bd4@harpe.intellique.com> In-Reply-To: References: <20100618132108.790921cf@harpe.intellique.com> <20100618133458.6640ce96@harpe.intellique.com> <20100618140028.05650928@harpe.intellique.com> Organization: Intellique X-Mailer: Claws Mail 3.7.3 (GTK+ 2.16.6; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: smtp4-g21.free.fr[212.27.42.4] X-Barracuda-Start-Time: 1276865305 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32866 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Le Fri, 18 Jun 2010 14:30:43 +0200 Thomas F=F8rde =E9crivait: > ill see if we can rebuild a different SAN with mirror functionalityt, > y have 384x300GB disk in my SAN, so it should be possible. No, a mirror will corrupt your data as well, a simple copy is better; unless you break the mirror as soon as the data is on it, to keep a copy safe. But the copy has another benefit, it's a different filesystem too. --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From stan@hardwarefreak.com Fri Jun 18 07:52:39 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5ICqcfI224571 for ; Fri, 18 Jun 2010 07:52:38 -0500 X-ASG-Debug-ID: 1276865945-422702650000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from greer.hardwarefreak.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id EDB0610F59EF for ; Fri, 18 Jun 2010 05:59:05 -0700 (PDT) Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id ULN94uzAL68spxGL for ; Fri, 18 Jun 2010 05:59:05 -0700 (PDT) Received: from [192.168.100.53] (gffx.hardwarefreak.com [192.168.100.53]) by greer.hardwarefreak.com (Postfix) with ESMTP id 495FB6C3CF for ; Fri, 18 Jun 2010 07:55:15 -0500 (CDT) Message-ID: <4C1B6CB2.1020406@hardwarefreak.com> Date: Fri, 18 Jun 2010 07:55:14 -0500 From: Stan Hoeppner User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9.1.9) Gecko/20100317 Thunderbird/3.0.4 MIME-Version: 1.0 To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS References: <20100618132108.790921cf@harpe.intellique.com> <20100618133458.6640ce96@harpe.intellique.com> <20100618140028.05650928@harpe.intellique.com> In-Reply-To: <20100618140028.05650928@harpe.intellique.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: mo-65-41-216-221.sta.embarqhsd.net[65.41.216.221] X-Barracuda-Start-Time: 1276865945 X-Barracuda-Bayes: INNOCENT GLOBAL 0.3914 1.0000 -0.0225 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: 0.58 X-Barracuda-Spam-Status: No, SCORE=0.58 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_SC5_MJ1963, RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32867 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Emmanuel Florac put forth on 6/18/2010 7:00 AM: > A commodity 16TB NAS costs much less (10000 € or less) > than the data it holds and makes a nice backup system. NOTHING replaces > a backup. Your system WILL fail someday (well it has now apparently). Since he already has a FC SAN, going with something like a 4Gb FC Nexsan Sataboy w/16 1TB drives would be a better option. Pricing should be around $10-12k USD. I bought an 8x500GB drive 2Gb FC Satablade back in 2006 for approximately $9k USD because expanding our IBM FasTt 600 would have cost over $20K USD for 1/4th the additional storage of thh Nexsan (the FasTt 600 wasn't compatible with the EXP810, so the only expansion option was adding another FC tray with 14x73GB 15k FC disks). As long as the OP has a free SFP LC port on his FC switch (and the ability to program zones) this is definitely the way to go. No NFS/CIFS overhead. And given the default 1GB cache on the Sataboy, it'll likely have better performance than the DS4700/EXP810 combo (at half the cost). The web GUI admin interface makes setting up and managing the Nexsan units a breeze. I've been really happy with ours, and with Nexsan support. Great products, great company. http://www.nexsan.com/sataboy.php -- Stan From stan@hardwarefreak.com Fri Jun 18 07:58:14 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5ICwDZK224705 for ; Fri, 18 Jun 2010 07:58:14 -0500 X-ASG-Debug-ID: 1276866051-309303b30000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from greer.hardwarefreak.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 06A6514FFDB9 for ; Fri, 18 Jun 2010 06:00:51 -0700 (PDT) Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id 4ebDtLc3HkirCjDO for ; Fri, 18 Jun 2010 06:00:51 -0700 (PDT) Received: from [192.168.100.53] (gffx.hardwarefreak.com [192.168.100.53]) by greer.hardwarefreak.com (Postfix) with ESMTP id 8AD706C072 for ; Fri, 18 Jun 2010 08:00:51 -0500 (CDT) Message-ID: <4C1B6E02.3010503@hardwarefreak.com> Date: Fri, 18 Jun 2010 08:00:50 -0500 From: Stan Hoeppner User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9.1.9) Gecko/20100317 Thunderbird/3.0.4 MIME-Version: 1.0 To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS References: <20100618132108.790921cf@harpe.intellique.com> <20100618133458.6640ce96@harpe.intellique.com> <20100618140028.05650928@harpe.intellique.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: mo-65-41-216-221.sta.embarqhsd.net[65.41.216.221] X-Barracuda-Start-Time: 1276866052 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0003 1.0000 -2.0188 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.42 X-Barracuda-Spam-Status: No, SCORE=-1.42 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_SC5_MJ1963, RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32868 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Thomas Førde put forth on 6/18/2010 7:30 AM: > they have all the data in tape, but not the processed data, so that has to > be redone, will take about 15-30 days work to get updated. > > ill see if we can rebuild a different SAN with mirror functionalityt, y > have 384x300GB disk in my SAN, so it should be possible. Heheh. Well, scratch my Nexsan recommendation then. With that much free space on your SAN arrays, one wonders why you didn't already have some kind of tar'd or other backup of the processed data... -- Stan From eflorac@intellique.com Fri Jun 18 08:06:14 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,MIME_8BIT_HEADER autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5ID6ErS224958 for ; Fri, 18 Jun 2010 08:06:14 -0500 X-ASG-Debug-ID: 1276866527-3832039b0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp4-g21.free.fr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id D239315004D4 for ; Fri, 18 Jun 2010 06:08:50 -0700 (PDT) Received: from smtp4-g21.free.fr (smtp4-g21.free.fr [212.27.42.4]) by cuda.sgi.com with ESMTP id 8XNWvApL4KtZQiZE for ; Fri, 18 Jun 2010 06:08:50 -0700 (PDT) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) by smtp4-g21.free.fr (Postfix) with ESMTP id 758C64C80CC; Fri, 18 Jun 2010 15:08:43 +0200 (CEST) Date: Fri, 18 Jun 2010 15:08:48 +0200 From: Emmanuel Florac To: Thomas =?ISO-8859-1?Q?F=F8rde?= Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS Message-ID: <20100618150848.289428ed@harpe.intellique.com> In-Reply-To: References: <20100618132108.790921cf@harpe.intellique.com> <20100618133458.6640ce96@harpe.intellique.com> <20100618140028.05650928@harpe.intellique.com> Organization: Intellique X-Mailer: Claws Mail 3.7.3 (GTK+ 2.16.6; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: smtp4-g21.free.fr[212.27.42.4] X-Barracuda-Start-Time: 1276866532 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32868 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Le Fri, 18 Jun 2010 14:17:29 +0200 Thomas F=F8rde =E9crivait: > got the libXH installed and compiled, but get a shared.22 error file > does not exist trying to run it. >=20 Trying to run what? Apparently I can't compile hxtools with hxlib v1 nor version 3, only v2 would work apparently... --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From thomas.forde@bergenofs.no Fri Jun 18 08:33:05 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: **** X-Spam-Status: No, score=4.1 required=5.0 tests=BAYES_50,HTML_MESSAGE, MIME_8BIT_HEADER autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5IDX5tU226043 for ; Fri, 18 Jun 2010 08:33:05 -0500 X-ASG-Debug-ID: 1276868370-5d2e03910000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from deframx28.softcom.dk (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 52109159C541 for ; Fri, 18 Jun 2010 06:39:31 -0700 (PDT) Received: from deframx28.softcom.dk (deframx28.softcom.dk [87.230.83.86]) by cuda.sgi.com with ESMTP id oVrKnOYqpoTECLZ1 for ; Fri, 18 Jun 2010 06:39:31 -0700 (PDT) Received: (qmail 7553 invoked by uid 74); 18 Jun 2010 13:35:40 -0000 Received: from 74.82-134-78.bkkb.no (82.134.78.74) by deframx28.softcom.dk (envelope-from ) with ESMTP. tag msg.1276868140.498143.22015 (Processed in 0.193953 secs); 18 Jun 2010 13:35:40 -0000 X-SoftScan-Status: clean In-Reply-To: <20100618150848.289428ed@harpe.intellique.com> References: <20100618132108.790921cf@harpe.intellique.com> <20100618133458.6640ce96@harpe.intellique.com> <20100618140028.05650928@harpe.intellique.com> <20100618150848.289428ed@harpe.intellique.com> To: Emmanuel Florac Cc: xfs@oss.sgi.com MIME-Version: 1.0 X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS X-KeepSent: 752A728E:086B0B19-C1257746:00484C47; type=4; name=$KeepSent X-Mailer: Lotus Notes Release 8.5.1 FP3 May 24, 2010 Message-ID: From: =?ISO-8859-1?Q?Thomas_F=F8rde?= Date: Fri, 18 Jun 2010 15:35:39 +0200 X-MIMETrack: Serialize by Router on LNBOS01/BOS(Release 8.5.1|September 28, 2009) at 18.06.2010 15:35:39, Serialize complete at 18.06.2010 15:35:39 Content-Type: multipart/alternative; boundary="=_alternative 004AACECC1257746_=" X-Barracuda-Connect: deframx28.softcom.dk[87.230.83.86] X-Barracuda-Start-Time: 1276868372 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0010 1.0000 -2.0146 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.01 X-Barracuda-Spam-Status: No, SCORE=-2.01 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32871 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean This is a multipart message in MIME format. --=_alternative 004AACECC1257746_= Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable testrun of xfs=5Firecover error while loading shard libraries: libHX.so.22, cannot open shared=20 object file, no such file or directory. prolly some libs at the wrong place point elsewhere. Sincerely ------------------------------------------------------------------- Thomas F=F8rde IT-Manager=20 Mobile +47 90 41 41 90 Fax +47 55 31 67 66 thomas.forde@bergenofs.no www.bergenofs.no ------------------------------------------------------------------- Bergen Oilfield Services AS Address: Nedre Aastveit 12 NO-5106 Ovre Ervik ------------------------------------------------------------------- Please consider the environment before printing From: Emmanuel Florac To: Thomas F=F8rde Cc: xfs@oss.sgi.com Date: 18.06.2010 15:08 Subject: Re: Help with XFS Le Fri, 18 Jun 2010 14:17:29 +0200 Thomas F=F8rde =E9crivait: > got the libXH installed and compiled, but get a shared.22 error file > does not exist trying to run it. >=20 Trying to run what? Apparently I can't compile hxtools with hxlib v1 nor version 3, only v2 would work apparently... --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ --=_alternative 004AACECC1257746_= Content-Type: text/html; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable testrun of xfs=5Firecover


error while loading shard libraries: libHX.so.22, cannot open shared object file, no such file or directory.

prolly some libs at the wrong place point elsewhere.


Sincerely
-------------------------------------------------------------------
Thomas F=F8rde    IT-Manager
Mobile +47 90 41 41 90   Fax +47 55 31 67 66
thomas.forde@bergenofs.no     <= font size=3D2 face=3D"sans-serif">www.bergenofs.no
-------------------------------------------------------------------
Bergen Oilfield Services AS
Address: Nedre Aastveit 12    NO-5106 Ovre Ervik
-------------------------------------------------------------------

Please consider the environment before printing



From:     =    Emmanuel Florac <eflorac= @intellique.com>
To:     &n= bsp;  Thomas F=F8rde <thomas.f= orde@bergenofs.no>
Cc:     &n= bsp;  xfs@oss.sgi.com
Date:     =    18.06.2010 15:08
Subject:   &nbs= p;    Re: Help with XFS



Le Fri, 18 Jun 2010 14:17:29 +0200
Thomas F=F8rde <thomas.forde@bergenofs.no> =E9crivait:

> got the libXH installed and compiled, but get a shared.22 error file > does not exist trying to run it.
>

Trying to run what? Apparently I can't compile hxtools with hxlib v1
nor version 3, only v2 would work apparently...

--
------------------------------------------------------------------------
Emmanuel Florac     |   Direction technique
                   |   Intellique
                   |                 <eflorac@intellique.com>
                   |   +33 1 78 94 84 02
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--=_alternative 004AACECC1257746_=-- From eflorac@intellique.com Fri Jun 18 08:59:18 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,MIME_8BIT_HEADER autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5IDxIcB226933 for ; Fri, 18 Jun 2010 08:59:18 -0500 X-ASG-Debug-ID: 1276869711-4cf5038c0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp4-g21.free.fr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 17F833E3855 for ; Fri, 18 Jun 2010 07:01:54 -0700 (PDT) Received: from smtp4-g21.free.fr (smtp4-g21.free.fr [212.27.42.4]) by cuda.sgi.com with ESMTP id 6lJvb0ibdjfQR1SY for ; Fri, 18 Jun 2010 07:01:54 -0700 (PDT) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) by smtp4-g21.free.fr (Postfix) with ESMTP id 5CA264C8186; Fri, 18 Jun 2010 16:01:47 +0200 (CEST) Date: Fri, 18 Jun 2010 16:01:52 +0200 From: Emmanuel Florac To: Thomas =?ISO-8859-1?Q?F=F8rde?= Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS Message-ID: <20100618160152.77dfb143@harpe.intellique.com> In-Reply-To: References: <20100618132108.790921cf@harpe.intellique.com> <20100618133458.6640ce96@harpe.intellique.com> <20100618140028.05650928@harpe.intellique.com> <20100618150848.289428ed@harpe.intellique.com> Organization: Intellique X-Mailer: Claws Mail 3.7.3 (GTK+ 2.16.6; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: smtp4-g21.free.fr[212.27.42.4] X-Barracuda-Start-Time: 1276869717 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32872 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Le Fri, 18 Jun 2010 15:35:39 +0200 Thomas F=F8rde =E9crivait: > testrun of xfs_irecover >=20 >=20 > error while loading shard libraries: libHX.so.22, cannot open shared=20 > object file, no such file or directory. >=20 > prolly some libs at the wrong place point elsewhere. >=20 What version of libhx did you install and how? I've finally managed to compile xfs_irecover by using libhx18. --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From eflorac@intellique.com Fri Jun 18 09:01:36 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5IE1agq227037 for ; Fri, 18 Jun 2010 09:01:36 -0500 X-ASG-Debug-ID: 1276869848-212d026e0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp4-g21.free.fr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id B854A14F7B3B for ; Fri, 18 Jun 2010 07:04:12 -0700 (PDT) Received: from smtp4-g21.free.fr (smtp4-g21.free.fr [212.27.42.4]) by cuda.sgi.com with ESMTP id 2SSaiwiJAwtPUJKW for ; Fri, 18 Jun 2010 07:04:12 -0700 (PDT) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) by smtp4-g21.free.fr (Postfix) with ESMTP id 2352F4C8113; Fri, 18 Jun 2010 16:04:04 +0200 (CEST) Date: Fri, 18 Jun 2010 16:04:10 +0200 From: Emmanuel Florac To: Stan Hoeppner Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS Message-ID: <20100618160410.034bc72f@harpe.intellique.com> In-Reply-To: <4C1B6CB2.1020406@hardwarefreak.com> References: <20100618132108.790921cf@harpe.intellique.com> <20100618133458.6640ce96@harpe.intellique.com> <20100618140028.05650928@harpe.intellique.com> <4C1B6CB2.1020406@hardwarefreak.com> Organization: Intellique X-Mailer: Claws Mail 3.7.3 (GTK+ 2.16.6; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: smtp4-g21.free.fr[212.27.42.4] X-Barracuda-Start-Time: 1276869854 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32872 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Le Fri, 18 Jun 2010 07:55:14 -0500 Stan Hoeppner =E9crivait: > Since he already has a FC SAN, going with something like a 4Gb FC > Nexsan Sataboy w/16 1TB drives would be a better option.=20 Why not, actually anything that could hold a backup will do :) --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From stan@hardwarefreak.com Fri Jun 18 10:35:39 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5IFZcAn229950 for ; Fri, 18 Jun 2010 10:35:39 -0500 X-ASG-Debug-ID: 1276875495-29fb02a50000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from greer.hardwarefreak.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 502123E5286 for ; Fri, 18 Jun 2010 08:38:16 -0700 (PDT) Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id AsJ1vrk0MmRpS3ib for ; Fri, 18 Jun 2010 08:38:16 -0700 (PDT) Received: from [192.168.100.53] (gffx.hardwarefreak.com [192.168.100.53]) by greer.hardwarefreak.com (Postfix) with ESMTP id AF5BE6C3A0 for ; Fri, 18 Jun 2010 10:38:15 -0500 (CDT) Message-ID: <4C1B92E7.1050900@hardwarefreak.com> Date: Fri, 18 Jun 2010 10:38:15 -0500 From: Stan Hoeppner User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9.1.9) Gecko/20100317 Thunderbird/3.0.4 MIME-Version: 1.0 To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Help with XFS -- use DS4700 Volume Copy feature for backing up the seismic date LUN Subject: Re: Help with XFS -- use DS4700 Volume Copy feature for backing up the seismic date LUN References: <20100618132108.790921cf@harpe.intellique.com> <20100618133458.6640ce96@harpe.intellique.com> <20100618140028.05650928@harpe.intellique.com> <4C1B6CB2.1020406@hardwarefreak.com> <20100618160410.034bc72f@harpe.intellique.com> In-Reply-To: <20100618160410.034bc72f@harpe.intellique.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: mo-65-41-216-221.sta.embarqhsd.net[65.41.216.221] X-Barracuda-Start-Time: 1276875496 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0912 1.0000 -1.4459 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -0.85 X-Barracuda-Spam-Status: No, SCORE=-0.85 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_SC5_MJ1963, RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32878 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Emmanuel Florac put forth on 6/18/2010 9:04 AM: > Le Fri, 18 Jun 2010 07:55:14 -0500 > Stan Hoeppner écrivait: > >> Since he already has a FC SAN, going with something like a 4Gb FC >> Nexsan Sataboy w/16 1TB drives would be a better option. > > Why not, actually anything that could hold a backup will do :) That really depends on the size of one's filesystem(s) to be backed up and the required backup schedule. Backup times, optimal configurations: 10TB FS 20TB FS 40TB FS 4Gb FC 7 hours 14 hours 28 hours 1GbE NFS 28 hours 56 hours 111 hours With 4Gb FC one could backup 40TB in just over a day. Using a 1GbE NAS filer it would take 4.6 days, almost an entire standard business _week_. Now, depending on the data, one could always tar the FS with compression and substantially decrease these wire xfer times with either FC or NAS, which most OPs would probably do with given the FS sizes involved. And this is where the really nice high end arrays start to be worth their price tag. Even some upper midrange arrays, both SAN and NAS, have PIT snapshot and LUN mirroring backup capabilities. Both operations are much faster than a filesystem level backup over the wire. The DS4700 offers both a PIT snapshot feature called "FlashCopy" and a LUN mirroring feature called "Volume Copy". It would seem in the OP's case that making use of the DS4700's Volume Copy feature would be of great benefit. He would simply make a Volume Copy of the current LUN holding the processed seismic data using the System Storage DS4000 Storage Manager software. He should be able to schedule this operation to occur nightly, every other day, weekly, biweekly, etc, or he could just run it manually occasionally if the dataset doesn't change after it's been processed. Again, given the OP's SAN hardware, this is really the only way to fly in this case. -- Stan From michael.monnerie@is.it-management.at Fri Jun 18 11:40:28 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5IGeSs7232425 for ; Fri, 18 Jun 2010 11:40:28 -0500 X-ASG-Debug-ID: 1276879614-0f2d03d60000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id E2C99159CB7B for ; Fri, 18 Jun 2010 09:46:54 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id hQe57fCvWPLkk2C3 for ; Fri, 18 Jun 2010 09:46:54 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id 9072B17A for ; Fri, 18 Jun 2010 18:43:02 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id 73ED483C829 for ; Fri, 18 Jun 2010 18:42:47 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS Date: Fri, 18 Jun 2010 18:43:01 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) References: <20100618133458.6640ce96@harpe.intellique.com> In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1462525.cFiZO1zcsj"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201006181843.01755@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1276879615 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0027 1.0000 -2.0035 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.00 X-Barracuda-Spam-Status: No, SCORE=-2.00 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32883 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart1462525.cFiZO1zcsj Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable On Freitag, 18. Juni 2010 Thomas F=C3=B8rde wrote: > the raid array is a FC SAN array consisting of DS4700 unit with > EXP810 expansion system =20 You have the money for a IBM DS4700 (costs with disk >15.000=E2=82=AC), but= not=20 for 4 cheap 2TB SATA disks to at least copy the data there? That would=20 have cost <500=E2=82=AC. =2D-=20 mit freundlichen Gr=C3=BCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=C3=A4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart1462525.cFiZO1zcsj Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwbohUACgkQzhSR9xwSCbRJmwCbBTrf+Q2Yaw6izc8IF6ua3Zyn Ra8AnjDqsBRRyQv3hNBBq38ruWsN0s0x =SHVS -----END PGP SIGNATURE----- --nextPart1462525.cFiZO1zcsj-- From eflorac@intellique.com Fri Jun 18 11:50:01 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5IGo14s232767 for ; Fri, 18 Jun 2010 11:50:01 -0500 X-ASG-Debug-ID: 1276879952-51dc033f0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp4-g21.free.fr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id C41623E5727 for ; Fri, 18 Jun 2010 09:52:36 -0700 (PDT) Received: from smtp4-g21.free.fr (smtp4-g21.free.fr [212.27.42.4]) by cuda.sgi.com with ESMTP id FRR9BFEFsTlVuswZ for ; Fri, 18 Jun 2010 09:52:36 -0700 (PDT) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) by smtp4-g21.free.fr (Postfix) with ESMTP id EB7F34C808C; Fri, 18 Jun 2010 18:52:28 +0200 (CEST) Date: Fri, 18 Jun 2010 18:52:23 +0200 From: Emmanuel Florac To: Michael Monnerie Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS Message-ID: <20100618185223.60119f36@harpe.intellique.com> In-Reply-To: <201006181843.01755@zmi.at> References: <20100618133458.6640ce96@harpe.intellique.com> <201006181843.01755@zmi.at> Organization: Intellique X-Mailer: Claws Mail 3.7.3 (GTK+ 2.16.6; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/M_spYOqWB3uW3Ax0K5TwS89"; protocol="application/pgp-signature" X-Barracuda-Connect: smtp4-g21.free.fr[212.27.42.4] X-Barracuda-Start-Time: 1276879958 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32884 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --Sig_/M_spYOqWB3uW3Ax0K5TwS89 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Le Fri, 18 Jun 2010 18:43:01 +0200 Michael Monnerie =C3=A9crivait: > =20 > You have the money for a IBM DS4700 (costs with disk >15.000=E2=82=AC), b= ut > not for 4 cheap 2TB SATA disks to at least copy the data there? That > would have cost <500=E2=82=AC. This isn't very helpful. Advice to everyone : read the tao of backup ( http://www.taobackup.com ). Old, funny and still right on. --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ --Sig_/M_spYOqWB3uW3Ax0K5TwS89 Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkwbpEgACgkQX3jQXNUicVZ3gwCgw3lJm5bD1q1E5f4KDlof9QEt ILkAoPVN+FLUscWZYtDNA2CBdPvsmx1q =jY++ -----END PGP SIGNATURE----- --Sig_/M_spYOqWB3uW3Ax0K5TwS89-- From stan@hardwarefreak.com Fri Jun 18 12:18:37 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5IHIbFB233639 for ; Fri, 18 Jun 2010 12:18:37 -0500 X-ASG-Debug-ID: 1276881905-508e02220000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from greer.hardwarefreak.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 07106159D3D5 for ; Fri, 18 Jun 2010 10:25:05 -0700 (PDT) Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id 17chEHKPKZn5MMYR for ; Fri, 18 Jun 2010 10:25:05 -0700 (PDT) Received: from [192.168.100.53] (gffx.hardwarefreak.com [192.168.100.53]) by greer.hardwarefreak.com (Postfix) with ESMTP id 654D26C072 for ; Fri, 18 Jun 2010 12:21:14 -0500 (CDT) Message-ID: <4C1BAB09.4010801@hardwarefreak.com> Date: Fri, 18 Jun 2010 12:21:13 -0500 From: Stan Hoeppner User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9.1.10) Gecko/20100512 Thunderbird/3.0.5 MIME-Version: 1.0 To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS References: <20100618133458.6640ce96@harpe.intellique.com> <201006181843.01755@zmi.at> In-Reply-To: <201006181843.01755@zmi.at> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: mo-65-41-216-221.sta.embarqhsd.net[65.41.216.221] X-Barracuda-Start-Time: 1276881906 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0950 1.0000 -1.4228 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -0.82 X-Barracuda-Spam-Status: No, SCORE=-0.82 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_SC5_MJ1963, RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32885 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Michael Monnerie put forth on 6/18/2010 11:43 AM: > On Freitag, 18. Juni 2010 Thomas Førde wrote: >> the raid array is a FC SAN array consisting of DS4700 unit with >> EXP810 expansion system > > You have the money for a IBM DS4700 (costs with disk >15.000€), but not > for 4 cheap 2TB SATA disks to at least copy the data there? That would > have cost <500€. I'm guessing the OP works for a petroleum company, given the seismic data. Either that or a government agency studying volcanism. He states their DS4700 system(s) (a single DS4700 is limited to 112 drives) have 384x300GB drives. That setup would cost at least $250k USD at IBM list price, probably more given the number of drives. Money isn't the issue here. Lack of planning and procedure seems to be the issue. -- Stan From thomas.forde@bergenofs.no Fri Jun 18 13:48:16 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: **** X-Spam-Status: No, score=4.1 required=5.0 tests=BAYES_50,HTML_MESSAGE, MIME_8BIT_HEADER autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5IImFB7236279 for ; Fri, 18 Jun 2010 13:48:15 -0500 X-ASG-Debug-ID: 1276887282-09e002a30000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from deframx28.softcom.dk (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 3C098B1EB8D for ; Fri, 18 Jun 2010 11:54:43 -0700 (PDT) Received: from deframx28.softcom.dk (deframx28.softcom.dk [87.230.83.86]) by cuda.sgi.com with ESMTP id N86G9mAHiQKBJ9VM for ; Fri, 18 Jun 2010 11:54:43 -0700 (PDT) Received: (qmail 29457 invoked by uid 74); 18 Jun 2010 18:50:51 -0000 Received: from 74.82-134-78.bkkb.no (82.134.78.74) by deframx28.softcom.dk (envelope-from ) with ESMTP. tag msg.1276887051.117786.9933 (Processed in 0.195058 secs); 18 Jun 2010 18:50:51 -0000 X-SoftScan-Status: clean In-Reply-To: <20100618160152.77dfb143@harpe.intellique.com> References: <20100618132108.790921cf@harpe.intellique.com> <20100618133458.6640ce96@harpe.intellique.com> <20100618140028.05650928@harpe.intellique.com> <20100618150848.289428ed@harpe.intellique.com> <20100618160152.77dfb143@harpe.intellique.com> To: Emmanuel Florac Cc: xfs@oss.sgi.com MIME-Version: 1.0 X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS X-KeepSent: 2D06E1CF:A343BBE3-C1257746:00677C57; type=4; name=$KeepSent X-Mailer: Lotus Notes Release 8.5.1 FP3 May 24, 2010 From: =?ISO-8859-1?Q?Thomas_F=F8rde?= Message-ID: Date: Fri, 18 Jun 2010 20:50:49 +0200 X-MIMETrack: Serialize by Router on LNBOS01/BOS(Release 8.5.1|September 28, 2009) at 18.06.2010 20:50:50, Serialize complete at 18.06.2010 20:50:50 Content-Type: multipart/alternative; boundary="=_alternative 0067879AC1257746_=" X-Barracuda-Connect: deframx28.softcom.dk[87.230.83.86] X-Barracuda-Start-Time: 1276887284 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32891 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean This is a multipart message in MIME format. --=_alternative 0067879AC1257746_= Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable when i compiled it i used libHX 3.4 as thats why the xfs=5Firecover=20 ./configure demanded. Sincerely ------------------------------------------------------------------- Thomas F=F8rde IT-Manager=20 Mobile +47 90 41 41 90 Fax +47 55 31 67 66 thomas.forde@bergenofs.no www.bergenofs.no ------------------------------------------------------------------- Bergen Oilfield Services AS Address: Nedre Aastveit 12 NO-5106 Ovre Ervik ------------------------------------------------------------------- Please consider the environment before printing From: Emmanuel Florac To: Thomas F=F8rde Cc: xfs@oss.sgi.com Date: 18.06.2010 16:01 Subject: Re: Help with XFS Le Fri, 18 Jun 2010 15:35:39 +0200 Thomas F=F8rde =E9crivait: > testrun of xfs=5Firecover >=20 >=20 > error while loading shard libraries: libHX.so.22, cannot open shared=20 > object file, no such file or directory. >=20 > prolly some libs at the wrong place point elsewhere. >=20 What version of libhx did you install and how? I've finally managed to compile xfs=5Firecover by using libhx18. --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ --=_alternative 0067879AC1257746_= Content-Type: text/html; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable when i compiled it i used libHX 3.4 as thats why the xfs=5Firecover ./configure demanded.


Sincerely
-------------------------------------------------------------------
Thomas F=F8rde    IT-Manager
Mobile +47 90 41 41 90   Fax +47 55 31 67 66
thomas.forde@bergenofs.no     <= font size=3D2 face=3D"sans-serif">www.bergenofs.no
-------------------------------------------------------------------
Bergen Oilfield Services AS
Address: Nedre Aastveit 12    NO-5106 Ovre Ervik
-------------------------------------------------------------------

Please consider the environment before printing



From:     =    Emmanuel Florac <eflorac= @intellique.com>
To:     &n= bsp;  Thomas F=F8rde <thomas.f= orde@bergenofs.no>
Cc:     &n= bsp;  xfs@oss.sgi.com
Date:     =    18.06.2010 16:01
Subject:   &nbs= p;    Re: Help with XFS



Le Fri, 18 Jun 2010 15:35:39 +0200
Thomas F=F8rde <thomas.forde@bergenofs.no> =E9crivait:

> testrun of xfs=5Firecover
>
>
> error while loading shard libraries: libHX.so.22, cannot open shared
> object file, no such file or directory.
>
> prolly some libs at the wrong place point elsewhere.
>

What version of libhx did you install and how? I've finally managed to
compile xfs=5Firecover by using libhx18.

--
------------------------------------------------------------------------
Emmanuel Florac     |   Direction technique
                   |   Intellique
                   |                 <eflorac@intellique.com>
                   |   +33 1 78 94 84 02
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--=_alternative 0067879AC1257746_=-- From eflorac@intellique.com Fri Jun 18 15:55:07 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,MIME_8BIT_HEADER autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5IKt7C8239631 for ; Fri, 18 Jun 2010 15:55:07 -0500 X-ASG-Debug-ID: 1276894660-09df022a0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp3-g21.free.fr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 256423E65FB for ; Fri, 18 Jun 2010 13:57:43 -0700 (PDT) Received: from smtp3-g21.free.fr (smtp3-g21.free.fr [212.27.42.3]) by cuda.sgi.com with ESMTP id bHhQgGz1mqyDyBc2 for ; Fri, 18 Jun 2010 13:57:43 -0700 (PDT) Received: from galadriel.home (pla78-1-82-235-234-79.fbx.proxad.net [82.235.234.79]) by smtp3-g21.free.fr (Postfix) with ESMTP id 09A378180A3; Fri, 18 Jun 2010 22:57:35 +0200 (CEST) Date: Fri, 18 Jun 2010 22:57:12 +0200 From: Emmanuel Florac To: Thomas =?ISO-8859-1?Q?F=F8rde?= Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS Message-ID: <20100618225712.2d2794f7@galadriel.home> In-Reply-To: References: <20100618132108.790921cf@harpe.intellique.com> <20100618133458.6640ce96@harpe.intellique.com> <20100618140028.05650928@harpe.intellique.com> <20100618150848.289428ed@harpe.intellique.com> <20100618160152.77dfb143@harpe.intellique.com> Organization: Intellique X-Mailer: Claws Mail 3.7.3 (GTK+ 2.20.1; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: smtp3-g21.free.fr[212.27.42.3] X-Barracuda-Start-Time: 1276894666 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32900 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Le Fri, 18 Jun 2010 20:50:49 +0200 vous =E9criviez: > when i compiled it i used libHX 3.4 as thats why the xfs_irecover=20 > ./configure demanded. Yes, but did you install libhx? Do you have /usr/lib/libHX.so* ? --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From SRS0+pXza+19+fromorbit.com=david@internode.on.net Fri Jun 18 19:04:36 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5J04Zx9245917 for ; Fri, 18 Jun 2010 19:04:36 -0500 X-ASG-Debug-ID: 1276906032-204a03dc0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 71C203E6E6D for ; Fri, 18 Jun 2010 17:07:13 -0700 (PDT) Received: from mail.internode.on.net (bld-mail14.adl6.internode.on.net [150.101.137.99]) by cuda.sgi.com with ESMTP id QuAJ0vGrJVBSLho8 for ; Fri, 18 Jun 2010 17:07:13 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28739638-1927428 for multiple; Sat, 19 Jun 2010 09:37:09 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OPlaV-0000jG-Bj; Sat, 19 Jun 2010 10:07:07 +1000 Date: Sat, 19 Jun 2010 10:07:07 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com, security@kernel.org X-ASG-Orig-Subj: Re: [PATCH 2/4] xfs: validate untrusted inode numbers during lookup Subject: Re: [PATCH 2/4] xfs: validate untrusted inode numbers during lookup Message-ID: <20100619000707.GH6590@dastard> References: <1276846374-23916-1-git-send-email-david@fromorbit.com> <1276846374-23916-3-git-send-email-david@fromorbit.com> <20100618114156.GA5417@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100618114156.GA5417@infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail14.adl6.internode.on.net[150.101.137.99] X-Barracuda-Start-Time: 1276906034 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32909 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jun 18, 2010 at 07:41:56AM -0400, Christoph Hellwig wrote: > On Fri, Jun 18, 2010 at 05:32:52PM +1000, Dave Chinner wrote: > > +static int > > +xfs_imap_lookup( > > STATIC to keep the gcc inliner from overdoing thing? *Nod*. > > > + xfs_mount_t *mp, > > + xfs_trans_t *tp, > > > +{ > > + xfs_inobt_rec_incore_t rec; > > + xfs_btree_cur_t *cur; > > + xfs_buf_t *agbp; > > Please use the struct versions of these instead of the typedefs. Copy-n-paste error - my bad. > > +#ifdef DEBUG > > + xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: " > > + "xfs_inobt_get_rec() failed"); > > +#endif /* DEBUG */ > > + error = XFS_ERROR(EINVAL); > > No need to print these even for debug kernels I think. And even then > we shouldn't do it if the untrusted flag is set. Ok, I killed all the prints - they don't tell us what inode number the error occurred on anyway, so they aren't very useful anyway.... > > + } > > +error0: > > I'd just call it out, or replace the goto by and if/else Ok, I rearranged the code to kill the goto. I will repost the series after a QA run. Cheers, Dave. -- Dave Chinner david@fromorbit.com From michael.monnerie@is.it-management.at Sat Jun 19 03:27:05 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5J8R5al262088 for ; Sat, 19 Jun 2010 03:27:05 -0500 X-ASG-Debug-ID: 1276936181-1ecd00480000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 5F3003E79B7 for ; Sat, 19 Jun 2010 01:29:41 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id RmwlCwO6GW7hdNF0 for ; Sat, 19 Jun 2010 01:29:41 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id 10F8F17A for ; Sat, 19 Jun 2010 10:29:40 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id C666583C829 for ; Sat, 19 Jun 2010 10:29:23 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS Date: Sat, 19 Jun 2010 10:29:39 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) References: <201006181843.01755@zmi.at> <20100618185223.60119f36@harpe.intellique.com> In-Reply-To: <20100618185223.60119f36@harpe.intellique.com> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1396635.YvYnXYTL9n"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201006191029.39306@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1276936182 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32909 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart1396635.YvYnXYTL9n Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable On Freitag, 18. Juni 2010 Emmanuel Florac wrote: > > You have the money for a IBM DS4700 (costs with disk >15.000=E2=82=AC),= but > > not for 4 cheap 2TB SATA disks to at least copy the data there? > > That would have cost <500=E2=82=AC. >=20 > This isn't very helpful. Advice to everyone : read the tao of backup > ( http://www.taobackup.com ). Old, funny and still right on. =20 I didn't say it's a backup solution. It's the simplest form of keeping=20 data, and would have helped here.=20 We tend to do backup-to-disk and then disk-to-tape, which until now is=20 superior to just backup-to-tape. It speeds up backup and restore time,=20 even when "just" using simple 2TB SATA drives (in RAID-5 arrays). The=20 following disk-to-tape runs without any start/stop cycles of the tape=20 (mostly LTO4 now), leading to much longer tape and tape drive lifetimes=20 than before. =2D-=20 mit freundlichen Gr=C3=BCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=C3=A4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart1396635.YvYnXYTL9n Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwcf/MACgkQzhSR9xwSCbQU8wCgrXbepOaIzmbxvewy3bx9C9OM YjcAn1zwQMbqjU16K0kN6azfCEozYsjO =Ig6/ -----END PGP SIGNATURE----- --nextPart1396635.YvYnXYTL9n-- From grafgrimm77@gmx.de Sat Jun 19 07:58:45 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM, T_TO_NO_BRKTS_FREEMAIL autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5JCwiwh008825 for ; Sat, 19 Jun 2010 07:58:45 -0500 X-ASG-Debug-ID: 1276952482-49db00880000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.gmx.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with SMTP id 0BF773E7D83 for ; Sat, 19 Jun 2010 06:01:23 -0700 (PDT) Received: from mail.gmx.net (mail.gmx.net [213.165.64.20]) by cuda.sgi.com with SMTP id 6NyJrbUuCHH2S0zp for ; Sat, 19 Jun 2010 06:01:23 -0700 (PDT) Received: (qmail invoked by alias); 19 Jun 2010 13:01:21 -0000 Received: from p4FDD1310.dip.t-dialin.net (EHLO server.grafnetz) [79.221.19.16] by mail.gmx.net (mp066) with SMTP; 19 Jun 2010 15:01:21 +0200 X-Authenticated: #1282162 X-Provags-ID: V01U2FsdGVkX1+uPWMitOCupcfacB324zs7X2iLgZkKklFNXzYntZ fQMpz8diSlixSX Received: from x2.grafnetz ([192.168.0.4]) by server.grafnetz with esmtps (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.72) (envelope-from ) id 1OPxfk-0000cT-Gh for xfs@oss.sgi.com; Sat, 19 Jun 2010 15:01:20 +0200 Date: Sat, 19 Jun 2010 15:01:19 +0200 From: Mario Bachmann To: xfs@oss.sgi.com X-ASG-Orig-Subj: vmalloc, xfs_buf_get: failed to map pages Subject: vmalloc, xfs_buf_get: failed to map pages Message-ID: <20100619150119.3ce64102@x2.grafnetz> X-Mailer: Claws Mail 3.7.6 (GTK+ 2.20.1; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 X-Barracuda-Connect: mail.gmx.net[213.165.64.20] X-Barracuda-Start-Time: 1276952484 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0001 1.0000 -2.0204 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32909 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hello, on a 32bit machine, I have big problems with Linux 2.6.34. With Linux 2.6.33.4 everything runs fine. I do not know where to search for known bugs in xfs. /var/log/messages shows a lot of lines: Jun 19 11:43:15 amd2000 kernel: vmap allocation for size 4194304 failed: use vmalloc= to increase size. Jun 19 11:43:15 amd2000 kernel: xfs_buf_get: failed to map pages What to to? Mario From eflorac@intellique.com Sat Jun 19 08:11:26 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5JDBQEW009477 for ; Sat, 19 Jun 2010 08:11:26 -0500 X-ASG-Debug-ID: 1276953239-36e301190000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp3-g21.free.fr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id C377D1507EAA for ; Sat, 19 Jun 2010 06:14:02 -0700 (PDT) Received: from smtp3-g21.free.fr (smtp3-g21.free.fr [212.27.42.3]) by cuda.sgi.com with ESMTP id YaexEGloJ0lkuyGU for ; Sat, 19 Jun 2010 06:14:02 -0700 (PDT) Received: from galadriel.home (pla78-1-82-235-234-79.fbx.proxad.net [82.235.234.79]) by smtp3-g21.free.fr (Postfix) with ESMTP id AD7A281802D; Sat, 19 Jun 2010 15:13:54 +0200 (CEST) Date: Sat, 19 Jun 2010 15:13:52 +0200 From: Emmanuel Florac To: Stan Hoeppner Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS Message-ID: <20100619151352.5f725ade@galadriel.home> In-Reply-To: <4C1BAB09.4010801@hardwarefreak.com> References: <20100618133458.6640ce96@harpe.intellique.com> <201006181843.01755@zmi.at> <4C1BAB09.4010801@hardwarefreak.com> Organization: Intellique X-Mailer: Claws Mail 3.7.3 (GTK+ 2.20.1; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: smtp3-g21.free.fr[212.27.42.3] X-Barracuda-Start-Time: 1276953244 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32909 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Le Fri, 18 Jun 2010 12:21:13 -0500 vous =E9criviez: > Money isn't the issue here. Lack of planning and procedure seems to > be the issue. >=20 Yes, we all agree on that, Thomas must be inexperienced and nobody ever makes backup prior to serious data loss :) Now he'll see how to do backups, but his current problem is being able to restore the data if possible... --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From robert@timetraveller.org Sat Jun 19 10:08:16 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5JF8GtV013736 for ; Sat, 19 Jun 2010 10:08:16 -0500 X-ASG-Debug-ID: 1276960489-78db004e0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from procyon.opentrend.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 7E257159E11B for ; Sat, 19 Jun 2010 08:14:49 -0700 (PDT) Received: from procyon.opentrend.net (li144-209.members.linode.com [109.74.197.209]) by cuda.sgi.com with ESMTP id IbrRvoeVveCKBW1h for ; Sat, 19 Jun 2010 08:14:49 -0700 (PDT) Received: by procyon.opentrend.net (Postfix, from userid 1004) id DA57CCCAE; Sat, 19 Jun 2010 15:10:42 +0000 (UTC) Received: from castor.opentrend.net (unknown [192.168.120.16]) by procyon.opentrend.net (Postfix) with ESMTP id 21D27CCAC for ; Sat, 19 Jun 2010 15:10:41 +0000 (UTC) Received: by castor.opentrend.net (Postfix, from userid 1000) id 613EB4009B6EF; Sat, 19 Jun 2010 15:14:38 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by castor.opentrend.net (Postfix) with ESMTP id 5E4704008625D for ; Sat, 19 Jun 2010 11:14:38 -0400 (EDT) Date: Sat, 19 Jun 2010 11:14:38 -0400 (EDT) From: Robert Brockway X-X-Sender: robert@castor.opentrend.net To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Help with XFS Subject: Re: Help with XFS In-Reply-To: <20100618144821.0cab4bd4@harpe.intellique.com> Message-ID: References: <20100618132108.790921cf@harpe.intellique.com> <20100618133458.6640ce96@harpe.intellique.com> <20100618140028.05650928@harpe.intellique.com> <20100618144821.0cab4bd4@harpe.intellique.com> User-Agent: Alpine 1.10 (DEB 962 2008-03-14) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="8323329-292231012-1276960478=:26490" X-Barracuda-Connect: li144-209.members.linode.com[109.74.197.209] X-Barracuda-Start-Time: 1276960490 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.32909 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --8323329-292231012-1276960478=:26490 Content-Type: TEXT/PLAIN; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8BIT On Fri, 18 Jun 2010, Emmanuel Florac wrote: > Le Fri, 18 Jun 2010 14:30:43 +0200 > Thomas Førde écrivait: > >> ill see if we can rebuild a different SAN with mirror functionalityt, >> y have 384x300GB disk in my SAN, so it should be possible. > > No, a mirror will corrupt your data as well, a simple copy is better; Exactly. High availability and backups are two different things, although people often confuse them. Here are my notes from my backup talk: http://www.timetraveller.org/talks/backup_talk.pdf This approach is honed over many years, having done many disaster recoveries in the real world. Cheers, Rob -- Email: robert@timetraveller.org Linux counter ID #16440 IRC: Solver (OFTC & Freenode) Web: http://www.practicalsysadmin.com Open Source: The revolution that silently changed the world --8323329-292231012-1276960478=:26490-- From BATV+0f43bb3fde64658088bd+2491+infradead.org+hch@bombadil.srs.infradead.org Sat Jun 19 15:32:48 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5JKWkdo027920 for ; Sat, 19 Jun 2010 15:32:48 -0500 X-ASG-Debug-ID: 1276979725-455102180000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 44F8C1E114AE for ; Sat, 19 Jun 2010 13:35:25 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id AHBKnP5ov9WHaR9T for ; Sat, 19 Jun 2010 13:35:25 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQ4l9-00007f-GB; Sat, 19 Jun 2010 20:35:23 +0000 Date: Sat, 19 Jun 2010 16:35:23 -0400 From: Christoph Hellwig To: Dave Chinner Cc: Christoph Hellwig , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfs: remove xfs_iput_new Subject: Re: [PATCH] xfs: remove xfs_iput_new Message-ID: <20100619203523.GA30665@infradead.org> References: <20100611161824.GA7556@infradead.org> <20100615015300.GP6590@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100615015300.GP6590@dastard> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1276979725 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 15, 2010 at 11:53:00AM +1000, Dave Chinner wrote: > On Fri, Jun 11, 2010 at 12:18:24PM -0400, Christoph Hellwig wrote: > > We never get an i_mode of 0 or a locked VFS inode until we pass in the > > XFS_IGET_CREATE flag to xfs_iget, which makes xfs_iput_new equivalent to > > xfs_iput for the only caller. > > > > Signed-off-by: Christoph Hellwig > > Reviewed-by: Dave Chinner There's in fact no need to lock the inode at all here, so this can be replaced with IRELE. I'll send an updated version with my next batch of patches. From SRS0+lqJd+20+fromorbit.com=dave@internode.on.net Sun Jun 20 18:40:27 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5KNeQFH091400 for ; Sun, 20 Jun 2010 18:40:27 -0500 X-ASG-Debug-ID: 1277077384-596602cb0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 91D2D1D5E147 for ; Sun, 20 Jun 2010 16:43:05 -0700 (PDT) Received: from mail.internode.on.net (bld-mail19.adl2.internode.on.net [150.101.137.104]) by cuda.sgi.com with ESMTP id Fq988u5DclKEke8Q for ; Sun, 20 Jun 2010 16:43:05 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28463014-1927428 for ; Mon, 21 Jun 2010 09:13:03 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OQUAH-00034H-Tl for xfs@oss.sgi.com; Mon, 21 Jun 2010 09:43:01 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OQUAE-0004ff-K9 for xfs@oss.sgi.com; Mon, 21 Jun 2010 09:42:58 +1000 From: Dave Chinner To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH] xfsqa: test 214 leaves files around that cause 236 to fail Subject: [PATCH] xfsqa: test 214 leaves files around that cause 236 to fail Date: Mon, 21 Jun 2010 09:42:58 +1000 Message-Id: <1277077378-17927-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 X-Barracuda-Connect: bld-mail19.adl2.internode.on.net[150.101.137.104] X-Barracuda-Start-Time: 1277077386 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33084 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner Test 214 and 236 use the same file names for test files in the TEST filesystem and don't check/create clean initial test state. Hence if you run 214 then 236, 236 will fail with: +link: cannot create link `/mnt/test/ouch2' to `/mnt/test/ouch': File exists +ctime: 1277076527 -> 1277076527 +Fatal error: ctime not updated after link Ensure that both tests clean up after themselves properly and also ensure a clean state before they start. Signed-off-by: Dave Chinner --- 214 | 2 ++ 236 | 13 +++++-------- 2 files changed, 7 insertions(+), 8 deletions(-) diff --git a/214 b/214 index eb18825..cef7626 100755 --- a/214 +++ b/214 @@ -29,6 +29,7 @@ echo "QA output created by $seq" _cleanup() { + rm -f $TEST_DIR/ouch* cd / rm -f $tmp.* } @@ -51,6 +52,7 @@ _supported_os Linux [ -n "$XFS_IO_PROG" ] || _notrun "xfs_io executable not found" rm -f $seq.full +rm -f $TEST_DIR/ouch* _require_xfs_io_falloc diff --git a/236 b/236 index 4d257f0..a7500ed 100644 --- a/236 +++ b/236 @@ -30,15 +30,12 @@ echo "QA output created by $seq" _cleanup() { - if [ -a $TEST_DIR/ouch2 ]; then - rm -f $TEST_DIR/ouch2 - fi - if [ -a $TEST_DIR/ouch ]; then - rm -f $TEST_DIR/ouch - fi + rm -f $TEST_DIR/ouch* } here=`pwd` +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 # get standard environment, filters and checks . ./common.rc @@ -48,6 +45,8 @@ _supported_fs generic # only Linux supports fallocate _supported_os Linux +rm -f $TEST_DIR/ouch* + # create a file and get its ctime touch $TEST_DIR/ouch ctime=`stat -c %Z $TEST_DIR/ouch` @@ -65,8 +64,6 @@ if [ $ctime2 -le $ctime ]; then exit 1 fi -_cleanup - echo "Test over." # success, all done status=0 -- 1.7.1 From SRS0+w5/N+20+fromorbit.com=dave@internode.on.net Sun Jun 20 18:56:36 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5KNua3T091929 for ; Sun, 20 Jun 2010 18:56:36 -0500 X-ASG-Debug-ID: 1277078354-5ebb00190000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 2C3C73ED453 for ; Sun, 20 Jun 2010 16:59:14 -0700 (PDT) Received: from mail.internode.on.net (bld-mail12.adl6.internode.on.net [150.101.137.97]) by cuda.sgi.com with ESMTP id mbxaP2iNN1jUbIdO for ; Sun, 20 Jun 2010 16:59:14 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28608413-1927428 for multiple; Mon, 21 Jun 2010 09:29:09 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OQUPr-00034w-MQ; Mon, 21 Jun 2010 09:59:07 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OQUPo-0004yv-C5; Mon, 21 Jun 2010 09:59:04 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: security@kernel.org X-ASG-Orig-Subj: [PATCH 3/4] xfs: rename XFS_IGET_BULKSTAT to XFS_IGET_UNTRUSTED Subject: [PATCH 3/4] xfs: rename XFS_IGET_BULKSTAT to XFS_IGET_UNTRUSTED Date: Mon, 21 Jun 2010 09:59:00 +1000 Message-Id: <1277078341-19087-4-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1277078341-19087-1-git-send-email-david@fromorbit.com> References: <1277078341-19087-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail12.adl6.internode.on.net[150.101.137.97] X-Barracuda-Start-Time: 1277078356 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33086 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner Inode numbers may come from somewhere external to the filesystem (e.g. file handles, bulkstat information) and so are inherently untrusted. Rename the flag we use for these lookups to make it obvious we are doing a lookup of an untrusted inode number and need to verify it completely before trying to read it from disk. Signed-off-by: Dave Chinner --- fs/xfs/linux-2.6/xfs_export.c | 9 ++++----- fs/xfs/xfs_ialloc.c | 11 +++++++---- fs/xfs/xfs_inode.c | 2 +- fs/xfs/xfs_inode.h | 2 +- fs/xfs/xfs_itable.c | 2 +- 5 files changed, 14 insertions(+), 12 deletions(-) diff --git a/fs/xfs/linux-2.6/xfs_export.c b/fs/xfs/linux-2.6/xfs_export.c index e61232f..b39c05c 100644 --- a/fs/xfs/linux-2.6/xfs_export.c +++ b/fs/xfs/linux-2.6/xfs_export.c @@ -127,12 +127,11 @@ xfs_nfs_get_inode( return ERR_PTR(-ESTALE); /* - * The XFS_IGET_BULKSTAT means that an invalid inode number is just - * fine and not an indication of a corrupted filesystem. Because - * clients can send any kind of invalid file handle, e.g. after - * a restore on the server we have to deal with this case gracefully. + * The XFS_IGET_UNTRUSTED means that an invalid inode number is just + * fine and not an indication of a corrupted filesystem as clients can + * send invalid file handles and we have to handle it gracefully.. */ - error = xfs_iget(mp, NULL, ino, XFS_IGET_BULKSTAT, + error = xfs_iget(mp, NULL, ino, XFS_IGET_UNTRUSTED, XFS_ILOCK_SHARED, &ip, 0); if (error) { /* diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c index 142ae8c..c3de5fa 100644 --- a/fs/xfs/xfs_ialloc.c +++ b/fs/xfs/xfs_ialloc.c @@ -1247,7 +1247,7 @@ xfs_imap_lookup( return error; /* for untrusted inodes check it is allocated first */ - if ((flags & XFS_IGET_BULKSTAT) && + if ((flags & XFS_IGET_UNTRUSTED) && (rec.ir_free & XFS_INOBT_MASK(agino - rec.ir_startino))) return EINVAL; @@ -1288,8 +1288,11 @@ xfs_imap( if (agno >= mp->m_sb.sb_agcount || agbno >= mp->m_sb.sb_agblocks || ino != XFS_AGINO_TO_INO(mp, agno, agino)) { #ifdef DEBUG - /* no diagnostics for bulkstat, ino comes from userspace */ - if (flags & XFS_IGET_BULKSTAT) + /* + * Don't output diagnostic information for untrusted inodes + * as they can be invalid without implying corruption. + */ + if (flags & XFS_IGET_UNTRUSTED) return XFS_ERROR(EINVAL); if (agno >= mp->m_sb.sb_agcount) { xfs_fs_cmn_err(CE_ALERT, mp, @@ -1325,7 +1328,7 @@ xfs_imap( * inodes in stale state on disk. Hence we have to do a btree lookup * in all cases where an untrusted inode number is passed. */ - if (flags & XFS_IGET_BULKSTAT) { + if (flags & XFS_IGET_UNTRUSTED) { error = xfs_imap_lookup(mp, tp, agno, agino, agbno, &chunk_agbno, &offset_agbno, flags); if (error) diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 5c2ada4..9101e79 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -173,7 +173,7 @@ xfs_imap_to_bp( if (unlikely(XFS_TEST_ERROR(!di_ok, mp, XFS_ERRTAG_ITOBP_INOTOBP, XFS_RANDOM_ITOBP_INOTOBP))) { - if (iget_flags & XFS_IGET_BULKSTAT) { + if (iget_flags & XFS_IGET_UNTRUSTED) { xfs_trans_brelse(tp, bp); return XFS_ERROR(EINVAL); } diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h index 10dd2e0..7a2f347 100644 --- a/fs/xfs/xfs_inode.h +++ b/fs/xfs/xfs_inode.h @@ -499,7 +499,7 @@ do { \ * Flags for xfs_iget() */ #define XFS_IGET_CREATE 0x1 -#define XFS_IGET_BULKSTAT 0x2 +#define XFS_IGET_UNTRUSTED 0x2 int xfs_inotobp(struct xfs_mount *, struct xfs_trans *, xfs_ino_t, struct xfs_dinode **, diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c index f554bd9..5fccd84 100644 --- a/fs/xfs/xfs_itable.c +++ b/fs/xfs/xfs_itable.c @@ -76,7 +76,7 @@ xfs_bulkstat_one_int( return XFS_ERROR(ENOMEM); error = xfs_iget(mp, NULL, ino, - XFS_IGET_BULKSTAT, XFS_ILOCK_SHARED, &ip, bno); + XFS_IGET_UNTRUSTED, XFS_ILOCK_SHARED, &ip, bno); if (error) { *stat = BULKSTAT_RV_NOTHING; goto out_free; -- 1.7.1 From SRS0+sBgx+20+fromorbit.com=dave@internode.on.net Sun Jun 20 18:56:42 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5KNugdf091947 for ; Sun, 20 Jun 2010 18:56:42 -0500 X-ASG-Debug-ID: 1277078602-1aa402900000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id B73F1B285D1 for ; Sun, 20 Jun 2010 17:03:22 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id N1K9KKQwtq3NbbJ9 for ; Sun, 20 Jun 2010 17:03:22 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28706101-1927428 for ; Mon, 21 Jun 2010 09:29:18 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OQUPr-00034r-Ft; Mon, 21 Jun 2010 09:59:07 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OQUPo-0004yo-5C; Mon, 21 Jun 2010 09:59:04 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: security@kernel.org X-ASG-Orig-Subj: [PATCH 0/4, V2] xfs: validate inode numbers in file handles correctly Subject: [PATCH 0/4, V2] xfs: validate inode numbers in file handles correctly Date: Mon, 21 Jun 2010 09:58:57 +1000 Message-Id: <1277078341-19087-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1277078604 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33085 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean This series closes a recently discovered problem in XFS filehandle conversion. On systems where inodes are dynamically deleted, XFS does not adequately verify the inode numbers in the filehandles, which results in reading stale inodes from disk and potentially returning them as valid files. Because these unlinked inodes were never zeroed out when the chunk was deallocated, some inodes in the chunk can still appear to have to data extents attached to them. This can lead to stale data exposure, exposure of active data and potentially overwriting of active data if the stale extents referenced in the unlinked inodes have been re-allocated. Both NFS filehandles and local filehandles provided through libhandle have this same problem. libhandle requires root permissions to use the interface, so it is not exposing information that you can't get more easily with other means (e.g. xfs_db or reading directly form the block device), so there isn't really an issue here. For NFS, we may incorrectly accept stale file handles for unlinked inodes after a server reboot if the unlinked inodes have not been overwritten leading to the above issues being triggered if multiple NFS clients are accessing the same files. Christoph's make-bulkstat-coherent patch is the basis for this series as bulkstat can also expose unlinked inodes and information about them back to userspace as it makes the same assumptions about inode lookups as the file handle interfaces. As a result, the first two patches of the series make up the real bug fix. The last two patches make it clear we are lookuping up untrusted inode numbers and clear away a shortcut that these interfaces used that we do not want used any more. Hence for backports to other kernels, only the first two patches are necessary. The test program that demonstrates the issue via the open_by_handle interface can be found here: http://oss.sgi.com/archives/xfs/2010-06/msg00191.html Version 2: - removed useless ip->i_imap.im_blkno initialisation in xfs_iread() - reworked a comment refering to bulkstat when it should refer to untrusted inodes. - removed typedefs from xfs_imap_lookup() - killed useless error logging from xfs_imap_lookup() - rearranged the logic flow of xfs_imap_lookup() to remove the gotos. From SRS0+EM/E+20+fromorbit.com=dave@internode.on.net Sun Jun 20 18:56:45 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_65 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5KNui9c091964 for ; Sun, 20 Jun 2010 18:56:45 -0500 X-ASG-Debug-ID: 1277078605-331001720000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 5ADBCB285EC for ; Sun, 20 Jun 2010 17:03:26 -0700 (PDT) Received: from mail.internode.on.net (bld-mail15.adl6.internode.on.net [150.101.137.100]) by cuda.sgi.com with ESMTP id qIu8GS8Jnzn3KsjS for ; Sun, 20 Jun 2010 17:03:26 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 17000637-1927428 for multiple; Mon, 21 Jun 2010 09:29:18 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OQUQ1-00034t-JO; Mon, 21 Jun 2010 09:59:17 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OQUPo-0004ys-9h; Mon, 21 Jun 2010 09:59:04 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: security@kernel.org X-ASG-Orig-Subj: [PATCH 2/4] xfs: validate untrusted inode numbers during lookup Subject: [PATCH 2/4] xfs: validate untrusted inode numbers during lookup Date: Mon, 21 Jun 2010 09:58:59 +1000 Message-Id: <1277078341-19087-3-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1277078341-19087-1-git-send-email-david@fromorbit.com> References: <1277078341-19087-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail15.adl6.internode.on.net[150.101.137.100] X-Barracuda-Start-Time: 1277078607 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33085 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner When we decode a handle or do a bulkstat lookup, we are using an inode number we cannot trust to be valid. If we are deleting inode chunks from disk (default noikeep mode), then we cannot trust the on disk inode buffer for any given inode number to correctly reflect whether the inode has been unlinked as the di_mode nor the generation number may have been updated on disk. This is due to the fact that when we delete an inode chunk, we do not write the clusters back to disk when they are removed - instead we mark them stale to avoid them being written back potentially over the top of something that has been subsequently allocated at that location. The result is that we can have locations of disk that look like they contain valid inodes but in reality do not. Hence we cannot simply convert the inode number to a block number and read the location from disk to determine if the inode is valid or not. As a result, and XFS_IGET_BULKSTAT lookup needs to actually look the inode up in the inode allocation btree to determine if the inode number is valid or not. It should be noted even on ikeep filesystems, there is the possibility that blocks on disk may look like valid inode clusters. e.g. if there are filesystem images hosted on the filesystem. Hence even for ikeep filesystems we really need to validate that the inode number is valid before issuing the inode buffer read. Signed-off-by: Dave Chinner --- fs/xfs/xfs_ialloc.c | 121 +++++++++++++++++++++++++++++++++------------------ 1 files changed, 78 insertions(+), 43 deletions(-) diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c index 0cf49f0..142ae8c 100644 --- a/fs/xfs/xfs_ialloc.c +++ b/fs/xfs/xfs_ialloc.c @@ -1199,6 +1199,63 @@ error0: return error; } +STATIC int +xfs_imap_lookup( + struct xfs_mount *mp, + struct xfs_trans *tp, + xfs_agnumber_t agno, + xfs_agino_t agino, + xfs_agblock_t agbno, + xfs_agblock_t *chunk_agbno, + xfs_agblock_t *offset_agbno, + int flags) +{ + struct xfs_inobt_rec_incore rec; + struct xfs_btree_cur *cur; + struct xfs_buf *agbp; + xfs_agino_t startino; + int error; + int i; + + error = xfs_ialloc_read_agi(mp, tp, agno, &agbp); + if (error) { + xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: " + "xfs_ialloc_read_agi() returned " + "error %d, agno %d", + error, agno); + return error; + } + + /* + * derive and lookup the exact inode record for the given agino. If the + * record cannot be found, then it's an invalid inode number and we + * should abort. + */ + cur = xfs_inobt_init_cursor(mp, tp, agbp, agno); + startino = agino & ~(XFS_IALLOC_INODES(mp) - 1); + error = xfs_inobt_lookup(cur, startino, XFS_LOOKUP_EQ, &i); + if (!error) { + if (i) + error = xfs_inobt_get_rec(cur, &rec, &i); + if (!error && i == 0) + error = EINVAL; + } + + xfs_trans_brelse(tp, agbp); + xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR); + if (error) + return error; + + /* for untrusted inodes check it is allocated first */ + if ((flags & XFS_IGET_BULKSTAT) && + (rec.ir_free & XFS_INOBT_MASK(agino - rec.ir_startino))) + return EINVAL; + + *chunk_agbno = XFS_AGINO_TO_AGBNO(mp, rec.ir_startino); + *offset_agbno = agbno - *chunk_agbno; + return 0; +} + /* * Return the location of the inode in imap, for mapping it into a buffer. */ @@ -1259,6 +1316,23 @@ xfs_imap( return XFS_ERROR(EINVAL); } + blks_per_cluster = XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_blocklog; + + /* + * For bulkstat and handle lookups, we have an untrusted inode number + * that we have to verify is valid. We cannot do this just by reading + * the inode buffer as it may have been unlinked and removed leaving + * inodes in stale state on disk. Hence we have to do a btree lookup + * in all cases where an untrusted inode number is passed. + */ + if (flags & XFS_IGET_BULKSTAT) { + error = xfs_imap_lookup(mp, tp, agno, agino, agbno, + &chunk_agbno, &offset_agbno, flags); + if (error) + return error; + goto out_map; + } + /* * If the inode cluster size is the same as the blocksize or * smaller we get to the buffer by simple arithmetics. @@ -1273,10 +1347,8 @@ xfs_imap( return 0; } - blks_per_cluster = XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_blocklog; - /* - * If we get a block number passed from bulkstat we can use it to + * If we get a block number passed we can use it to * find the buffer easily. */ if (imap->im_blkno) { @@ -1300,50 +1372,13 @@ xfs_imap( offset_agbno = agbno & mp->m_inoalign_mask; chunk_agbno = agbno - offset_agbno; } else { - xfs_btree_cur_t *cur; /* inode btree cursor */ - xfs_inobt_rec_incore_t chunk_rec; - xfs_buf_t *agbp; /* agi buffer */ - int i; /* temp state */ - - error = xfs_ialloc_read_agi(mp, tp, agno, &agbp); - if (error) { - xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: " - "xfs_ialloc_read_agi() returned " - "error %d, agno %d", - error, agno); - return error; - } - - cur = xfs_inobt_init_cursor(mp, tp, agbp, agno); - error = xfs_inobt_lookup(cur, agino, XFS_LOOKUP_LE, &i); - if (error) { - xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: " - "xfs_inobt_lookup() failed"); - goto error0; - } - - error = xfs_inobt_get_rec(cur, &chunk_rec, &i); - if (error) { - xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: " - "xfs_inobt_get_rec() failed"); - goto error0; - } - if (i == 0) { -#ifdef DEBUG - xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: " - "xfs_inobt_get_rec() failed"); -#endif /* DEBUG */ - error = XFS_ERROR(EINVAL); - } - error0: - xfs_trans_brelse(tp, agbp); - xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR); + error = xfs_imap_lookup(mp, tp, agno, agino, agbno, + &chunk_agbno, &offset_agbno, flags); if (error) return error; - chunk_agbno = XFS_AGINO_TO_AGBNO(mp, chunk_rec.ir_startino); - offset_agbno = agbno - chunk_agbno; } +out_map: ASSERT(agbno >= chunk_agbno); cluster_agbno = chunk_agbno + ((offset_agbno / blks_per_cluster) * blks_per_cluster); -- 1.7.1 From SRS0+EM/E+20+fromorbit.com=dave@internode.on.net Sun Jun 20 18:56:48 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,J_CHICKENPOX_63, J_CHICKENPOX_66,J_CHICKENPOX_92 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5KNulPk091982 for ; Sun, 20 Jun 2010 18:56:47 -0500 X-ASG-Debug-ID: 1277078365-522100dd0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 679843ED454 for ; Sun, 20 Jun 2010 16:59:26 -0700 (PDT) Received: from mail.internode.on.net (bld-mail16.adl2.internode.on.net [150.101.137.101]) by cuda.sgi.com with ESMTP id cUhGyhSvG4fWDIfx for ; Sun, 20 Jun 2010 16:59:26 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28560721-1927428 for multiple; Mon, 21 Jun 2010 09:29:19 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OQUQ1-000356-Ql; Mon, 21 Jun 2010 09:59:17 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OQUPo-0004yz-ER; Mon, 21 Jun 2010 09:59:04 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: security@kernel.org X-ASG-Orig-Subj: [PATCH 4/4] xfs: remove block number from inode lookup code Subject: [PATCH 4/4] xfs: remove block number from inode lookup code Date: Mon, 21 Jun 2010 09:59:01 +1000 Message-Id: <1277078341-19087-5-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1277078341-19087-1-git-send-email-david@fromorbit.com> References: <1277078341-19087-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail16.adl2.internode.on.net[150.101.137.101] X-Barracuda-Start-Time: 1277078367 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.52 X-Barracuda-Spam-Status: No, SCORE=-1.52 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_RULE7568M X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33086 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.50 BSF_RULE7568M Custom Rule 7568M X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner The block number comes from bulkstat based inode lookups to shortcut the mapping calculations. We ar enot able to trust anything from bulkstat, so drop the block number as well so that the correct lookups and mappings are always done. Signed-off-by: Dave Chinner --- fs/xfs/linux-2.6/xfs_export.c | 2 +- fs/xfs/linux-2.6/xfs_ioctl32.c | 5 ++--- fs/xfs/quota/xfs_qm.c | 7 +++---- fs/xfs/quota/xfs_qm_syscalls.c | 11 +++++------ fs/xfs/xfs_ialloc.c | 16 ---------------- fs/xfs/xfs_iget.c | 10 +++------- fs/xfs/xfs_inode.c | 3 --- fs/xfs/xfs_inode.h | 4 ++-- fs/xfs/xfs_itable.c | 12 ++++-------- fs/xfs/xfs_itable.h | 3 --- fs/xfs/xfs_log_recover.c | 2 +- fs/xfs/xfs_mount.c | 2 +- fs/xfs/xfs_rtalloc.c | 4 ++-- fs/xfs/xfs_trans_inode.c | 2 +- fs/xfs/xfs_vnodeops.c | 2 +- 15 files changed, 26 insertions(+), 59 deletions(-) diff --git a/fs/xfs/linux-2.6/xfs_export.c b/fs/xfs/linux-2.6/xfs_export.c index b39c05c..55df942 100644 --- a/fs/xfs/linux-2.6/xfs_export.c +++ b/fs/xfs/linux-2.6/xfs_export.c @@ -132,7 +132,7 @@ xfs_nfs_get_inode( * send invalid file handles and we have to handle it gracefully.. */ error = xfs_iget(mp, NULL, ino, XFS_IGET_UNTRUSTED, - XFS_ILOCK_SHARED, &ip, 0); + XFS_ILOCK_SHARED, &ip); if (error) { /* * EINVAL means the inode cluster doesn't exist anymore. diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index 48c1aba..6cd1225 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -233,12 +233,11 @@ xfs_bulkstat_one_compat( xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* buffer to place output in */ int ubsize, /* size of buffer */ - xfs_daddr_t bno, /* starting bno of inode cluster */ int *ubused, /* bytes used by me */ int *stat) /* BULKSTAT_RV_... */ { return xfs_bulkstat_one_int(mp, ino, buffer, ubsize, - xfs_bulkstat_one_fmt_compat, bno, + xfs_bulkstat_one_fmt_compat, ubused, stat); } @@ -292,7 +291,7 @@ xfs_compat_ioc_bulkstat( int res; error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer, - sizeof(compat_xfs_bstat_t), 0, NULL, &res); + sizeof(compat_xfs_bstat_t), 0, &res); } else if (cmd == XFS_IOC_FSBULKSTAT_32) { error = xfs_bulkstat(mp, &inlast, &count, xfs_bulkstat_one_compat, sizeof(compat_xfs_bstat_t), diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c index 25bc7da..175032f 100644 --- a/fs/xfs/quota/xfs_qm.c +++ b/fs/xfs/quota/xfs_qm.c @@ -1625,7 +1625,6 @@ xfs_qm_dqusage_adjust( xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* not used */ int ubsize, /* not used */ - xfs_daddr_t bno, /* starting block of inode cluster */ int *ubused, /* not used */ int *res) /* result code value */ { @@ -1651,7 +1650,7 @@ xfs_qm_dqusage_adjust( * the case in all other instances. It's OK that we do this because * quotacheck is done only at mount time. */ - if ((error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_EXCL, &ip, bno))) { + if ((error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_EXCL, &ip))) { *res = BULKSTAT_RV_NOTHING; return error; } @@ -1881,14 +1880,14 @@ xfs_qm_init_quotainos( mp->m_sb.sb_uquotino != NULLFSINO) { ASSERT(mp->m_sb.sb_uquotino > 0); if ((error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, - 0, 0, &uip, 0))) + 0, 0, &uip))) return XFS_ERROR(error); } if (XFS_IS_OQUOTA_ON(mp) && mp->m_sb.sb_gquotino != NULLFSINO) { ASSERT(mp->m_sb.sb_gquotino > 0); if ((error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, - 0, 0, &gip, 0))) { + 0, 0, &gip))) { if (uip) IRELE(uip); return XFS_ERROR(error); diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c index aa44c58..2d1abbf 100644 --- a/fs/xfs/quota/xfs_qm_syscalls.c +++ b/fs/xfs/quota/xfs_qm_syscalls.c @@ -252,7 +252,7 @@ xfs_qm_scall_trunc_qfiles( } if ((flags & XFS_DQ_USER) && mp->m_sb.sb_uquotino != NULLFSINO) { - error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, 0, 0, &qip, 0); + error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, 0, 0, &qip); if (!error) { error = xfs_truncate_file(mp, qip); IRELE(qip); @@ -261,7 +261,7 @@ xfs_qm_scall_trunc_qfiles( if ((flags & (XFS_DQ_GROUP|XFS_DQ_PROJ)) && mp->m_sb.sb_gquotino != NULLFSINO) { - error2 = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, 0, 0, &qip, 0); + error2 = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, 0, 0, &qip); if (!error2) { error2 = xfs_truncate_file(mp, qip); IRELE(qip); @@ -407,12 +407,12 @@ xfs_qm_scall_getqstat( } if (!uip && mp->m_sb.sb_uquotino != NULLFSINO) { if (xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, - 0, 0, &uip, 0) == 0) + 0, 0, &uip) == 0) tempuqip = B_TRUE; } if (!gip && mp->m_sb.sb_gquotino != NULLFSINO) { if (xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, - 0, 0, &gip, 0) == 0) + 0, 0, &gip) == 0) tempgqip = B_TRUE; } if (uip) { @@ -1095,7 +1095,6 @@ xfs_qm_internalqcheck_adjust( xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* not used */ int ubsize, /* not used */ - xfs_daddr_t bno, /* starting block of inode cluster */ int *ubused, /* not used */ int *res) /* bulkstat result code */ { @@ -1118,7 +1117,7 @@ xfs_qm_internalqcheck_adjust( ipreleased = B_FALSE; again: lock_flags = XFS_ILOCK_SHARED; - if ((error = xfs_iget(mp, NULL, ino, 0, lock_flags, &ip, bno))) { + if ((error = xfs_iget(mp, NULL, ino, 0, lock_flags, &ip))) { *res = BULKSTAT_RV_NOTHING; return (error); } diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c index c3de5fa..abf80ae 100644 --- a/fs/xfs/xfs_ialloc.c +++ b/fs/xfs/xfs_ialloc.c @@ -1351,22 +1351,6 @@ xfs_imap( } /* - * If we get a block number passed we can use it to - * find the buffer easily. - */ - if (imap->im_blkno) { - offset = XFS_INO_TO_OFFSET(mp, ino); - ASSERT(offset < mp->m_sb.sb_inopblock); - - cluster_agbno = xfs_daddr_to_agbno(mp, imap->im_blkno); - offset += (agbno - cluster_agbno) * mp->m_sb.sb_inopblock; - - imap->im_len = XFS_FSB_TO_BB(mp, blks_per_cluster); - imap->im_boffset = (ushort)(offset << mp->m_sb.sb_inodelog); - return 0; - } - - /* * If the inode chunks are aligned then use simple maths to * find the location. Otherwise we have to do a btree * lookup to find the location. diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c index a80b9b9..d6ef971 100644 --- a/fs/xfs/xfs_iget.c +++ b/fs/xfs/xfs_iget.c @@ -255,7 +255,6 @@ xfs_iget_cache_miss( xfs_trans_t *tp, xfs_ino_t ino, struct xfs_inode **ipp, - xfs_daddr_t bno, int flags, int lock_flags) { @@ -268,7 +267,7 @@ xfs_iget_cache_miss( if (!ip) return ENOMEM; - error = xfs_iread(mp, tp, ip, bno, flags); + error = xfs_iread(mp, tp, ip, flags); if (error) goto out_destroy; @@ -354,8 +353,6 @@ out_destroy: * within the file system for the inode being requested. * lock_flags -- flags indicating how to lock the inode. See the comment * for xfs_ilock() for a list of valid values. - * bno -- the block number starting the buffer containing the inode, - * if known (as by bulkstat), else 0. */ int xfs_iget( @@ -364,8 +361,7 @@ xfs_iget( xfs_ino_t ino, uint flags, uint lock_flags, - xfs_inode_t **ipp, - xfs_daddr_t bno) + xfs_inode_t **ipp) { xfs_inode_t *ip; int error; @@ -393,7 +389,7 @@ again: read_unlock(&pag->pag_ici_lock); XFS_STATS_INC(xs_ig_missed); - error = xfs_iget_cache_miss(mp, pag, tp, ino, &ip, bno, + error = xfs_iget_cache_miss(mp, pag, tp, ino, &ip, flags, lock_flags); if (error) goto out_error_or_again; diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 9101e79..5715a9d 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -783,7 +783,6 @@ xfs_iread( xfs_mount_t *mp, xfs_trans_t *tp, xfs_inode_t *ip, - xfs_daddr_t bno, uint iget_flags) { xfs_buf_t *bp; @@ -793,11 +792,9 @@ xfs_iread( /* * Fill in the location information in the in-core inode. */ - ip->i_imap.im_blkno = bno; error = xfs_imap(mp, tp, ip->i_ino, &ip->i_imap, iget_flags); if (error) return error; - ASSERT(bno == 0 || bno == ip->i_imap.im_blkno); /* * Get pointers to the on-disk inode and the buffer containing it. diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h index 7a2f347..7a19d52 100644 --- a/fs/xfs/xfs_inode.h +++ b/fs/xfs/xfs_inode.h @@ -442,7 +442,7 @@ static inline void xfs_ifunlock(xfs_inode_t *ip) * xfs_iget.c prototypes. */ int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t, - uint, uint, xfs_inode_t **, xfs_daddr_t); + uint, uint, xfs_inode_t **); void xfs_iput(xfs_inode_t *, uint); void xfs_ilock(xfs_inode_t *, uint); int xfs_ilock_nowait(xfs_inode_t *, uint); @@ -508,7 +508,7 @@ int xfs_itobp(struct xfs_mount *, struct xfs_trans *, struct xfs_inode *, struct xfs_dinode **, struct xfs_buf **, uint); int xfs_iread(struct xfs_mount *, struct xfs_trans *, - struct xfs_inode *, xfs_daddr_t, uint); + struct xfs_inode *, uint); void xfs_dinode_to_disk(struct xfs_dinode *, struct xfs_icdinode *); void xfs_idestroy_fork(struct xfs_inode *, int); diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c index 5fccd84..200dc6f 100644 --- a/fs/xfs/xfs_itable.c +++ b/fs/xfs/xfs_itable.c @@ -56,7 +56,6 @@ xfs_bulkstat_one_int( void __user *buffer, /* buffer to place output in */ int ubsize, /* size of buffer */ bulkstat_one_fmt_pf formatter, /* formatter, copy to user */ - xfs_daddr_t bno, /* starting bno of cluster */ int *ubused, /* bytes used by me */ int *stat) /* BULKSTAT_RV_... */ { @@ -76,7 +75,7 @@ xfs_bulkstat_one_int( return XFS_ERROR(ENOMEM); error = xfs_iget(mp, NULL, ino, - XFS_IGET_UNTRUSTED, XFS_ILOCK_SHARED, &ip, bno); + XFS_IGET_UNTRUSTED, XFS_ILOCK_SHARED, &ip); if (error) { *stat = BULKSTAT_RV_NOTHING; goto out_free; @@ -175,13 +174,11 @@ xfs_bulkstat_one( xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* buffer to place output in */ int ubsize, /* size of buffer */ - xfs_daddr_t bno, /* starting bno of inode cluster */ int *ubused, /* bytes used by me */ int *stat) /* BULKSTAT_RV_... */ { return xfs_bulkstat_one_int(mp, ino, buffer, ubsize, - xfs_bulkstat_one_fmt, bno, - ubused, stat); + xfs_bulkstat_one_fmt, ubused, stat); } #define XFS_BULKSTAT_UBLEFT(ubleft) ((ubleft) >= statstruct_size) @@ -481,7 +478,7 @@ xfs_bulkstat( * Get the inode and fill in a single buffer. */ ubused = statstruct_size; - error = formatter(mp, ino, ubufp, ubleft, bno, + error = formatter(mp, ino, ubufp, ubleft, &ubused, &fmterror); if (fmterror == BULKSTAT_RV_NOTHING) { if (error && error != ENOENT && @@ -574,8 +571,7 @@ xfs_bulkstat_single( */ ino = (xfs_ino_t)*lastinop; - error = xfs_bulkstat_one(mp, ino, buffer, sizeof(xfs_bstat_t), - 0, NULL, &res); + error = xfs_bulkstat_one(mp, ino, buffer, sizeof(xfs_bstat_t), 0, &res); if (error) { /* * Special case way failed, do it the "long" way diff --git a/fs/xfs/xfs_itable.h b/fs/xfs/xfs_itable.h index fea0339..97295d9 100644 --- a/fs/xfs/xfs_itable.h +++ b/fs/xfs/xfs_itable.h @@ -27,7 +27,6 @@ typedef int (*bulkstat_one_pf)(struct xfs_mount *mp, xfs_ino_t ino, void __user *buffer, int ubsize, - xfs_daddr_t bno, int *ubused, int *stat); @@ -71,7 +70,6 @@ xfs_bulkstat_one_int( void __user *buffer, int ubsize, bulkstat_one_fmt_pf formatter, - xfs_daddr_t bno, int *ubused, int *stat); @@ -81,7 +79,6 @@ xfs_bulkstat_one( xfs_ino_t ino, void __user *buffer, int ubsize, - xfs_daddr_t bno, int *ubused, int *stat); diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 1ac0b79..6f3f5fa 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -3186,7 +3186,7 @@ xlog_recover_process_one_iunlink( int error; ino = XFS_AGINO_TO_INO(mp, agno, agino); - error = xfs_iget(mp, NULL, ino, 0, 0, &ip, 0); + error = xfs_iget(mp, NULL, ino, 0, 0, &ip); if (error) goto fail; diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index 4e1725b..aeb9d72 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -1297,7 +1297,7 @@ xfs_mountfs( * Get and sanity-check the root inode. * Save the pointer to it in the mount structure. */ - error = xfs_iget(mp, NULL, sbp->sb_rootino, 0, XFS_ILOCK_EXCL, &rip, 0); + error = xfs_iget(mp, NULL, sbp->sb_rootino, 0, XFS_ILOCK_EXCL, &rip); if (error) { cmn_err(CE_WARN, "XFS: failed to read root inode"); goto out_log_dealloc; diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c index 20b5eb7..891260f 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -2270,12 +2270,12 @@ xfs_rtmount_inodes( sbp = &mp->m_sb; if (sbp->sb_rbmino == NULLFSINO) return 0; - error = xfs_iget(mp, NULL, sbp->sb_rbmino, 0, 0, &mp->m_rbmip, 0); + error = xfs_iget(mp, NULL, sbp->sb_rbmino, 0, 0, &mp->m_rbmip); if (error) return error; ASSERT(mp->m_rbmip != NULL); ASSERT(sbp->sb_rsumino != NULLFSINO); - error = xfs_iget(mp, NULL, sbp->sb_rsumino, 0, 0, &mp->m_rsumip, 0); + error = xfs_iget(mp, NULL, sbp->sb_rsumino, 0, 0, &mp->m_rsumip); if (error) { IRELE(mp->m_rbmip); return error; diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c index 10534c2..cdc53a1 100644 --- a/fs/xfs/xfs_trans_inode.c +++ b/fs/xfs/xfs_trans_inode.c @@ -57,7 +57,7 @@ xfs_trans_iget( { int error; - error = xfs_iget(mp, tp, ino, flags, lock_flags, ipp, 0); + error = xfs_iget(mp, tp, ino, flags, lock_flags, ipp); if (!error && tp) { xfs_trans_ijoin(tp, *ipp); (*ipp)->i_itemp->ili_lock_flags = lock_flags; diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c index df6d1b5..ad599cc 100644 --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -1233,7 +1233,7 @@ xfs_lookup( if (error) goto out; - error = xfs_iget(dp->i_mount, NULL, inum, 0, 0, ipp, 0); + error = xfs_iget(dp->i_mount, NULL, inum, 0, 0, ipp); if (error) goto out_free_name; -- 1.7.1 From SRS0+sBgx+20+fromorbit.com=dave@internode.on.net Sun Jun 20 18:56:53 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,J_CHICKENPOX_62, J_CHICKENPOX_92 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5KNuq9Y092000 for ; Sun, 20 Jun 2010 18:56:53 -0500 X-ASG-Debug-ID: 1277078612-0b3e033e0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id CDF09B285FB for ; Sun, 20 Jun 2010 17:03:33 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id VZdhBk2A0h6woWmp for ; Sun, 20 Jun 2010 17:03:33 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28706145-1927428 for ; Mon, 21 Jun 2010 09:29:29 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1OQUPr-00034s-Ht; Mon, 21 Jun 2010 09:59:07 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1OQUPo-0004yq-78; Mon, 21 Jun 2010 09:59:04 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: security@kernel.org X-ASG-Orig-Subj: [PATCH 1/4] xfs: always use iget in bulkstat Subject: [PATCH 1/4] xfs: always use iget in bulkstat Date: Mon, 21 Jun 2010 09:58:58 +1000 Message-Id: <1277078341-19087-2-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1277078341-19087-1-git-send-email-david@fromorbit.com> References: <1277078341-19087-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1277078614 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33085 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Christoph Hellwig The non-coherent bulkstat versionsthat look directly at the inode buffers causes various problems with performance optimizations that make increased use of just logging inodes. This patch makes bulkstat always use iget, which should be fast enough for normal use with the radix-tree based inode cache introduced a while ago. Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner --- fs/xfs/linux-2.6/xfs_ioctl.c | 7 +- fs/xfs/linux-2.6/xfs_ioctl32.c | 12 +- fs/xfs/quota/xfs_qm.c | 11 +- fs/xfs/quota/xfs_qm_syscalls.c | 16 +-- fs/xfs/xfs_itable.c | 281 ++++++---------------------------------- fs/xfs/xfs_itable.h | 14 -- 6 files changed, 59 insertions(+), 282 deletions(-) diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c index faafd94..a12ddda 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl.c +++ b/fs/xfs/linux-2.6/xfs_ioctl.c @@ -670,10 +670,9 @@ xfs_ioc_bulkstat( error = xfs_bulkstat_single(mp, &inlast, bulkreq.ubuffer, &done); else /* XFS_IOC_FSBULKSTAT */ - error = xfs_bulkstat(mp, &inlast, &count, - (bulkstat_one_pf)xfs_bulkstat_one, NULL, - sizeof(xfs_bstat_t), bulkreq.ubuffer, - BULKSTAT_FG_QUICK, &done); + error = xfs_bulkstat(mp, &inlast, &count, xfs_bulkstat_one, + sizeof(xfs_bstat_t), bulkreq.ubuffer, + &done); if (error) return -error; diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index 40118b6..48c1aba 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -233,15 +233,13 @@ xfs_bulkstat_one_compat( xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* buffer to place output in */ int ubsize, /* size of buffer */ - void *private_data, /* my private data */ xfs_daddr_t bno, /* starting bno of inode cluster */ int *ubused, /* bytes used by me */ - void *dibuff, /* on-disk inode buffer */ int *stat) /* BULKSTAT_RV_... */ { return xfs_bulkstat_one_int(mp, ino, buffer, ubsize, xfs_bulkstat_one_fmt_compat, bno, - ubused, dibuff, stat); + ubused, stat); } /* copied from xfs_ioctl.c */ @@ -294,13 +292,11 @@ xfs_compat_ioc_bulkstat( int res; error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer, - sizeof(compat_xfs_bstat_t), - NULL, 0, NULL, NULL, &res); + sizeof(compat_xfs_bstat_t), 0, NULL, &res); } else if (cmd == XFS_IOC_FSBULKSTAT_32) { error = xfs_bulkstat(mp, &inlast, &count, - xfs_bulkstat_one_compat, NULL, - sizeof(compat_xfs_bstat_t), bulkreq.ubuffer, - BULKSTAT_FG_QUICK, &done); + xfs_bulkstat_one_compat, sizeof(compat_xfs_bstat_t), + bulkreq.ubuffer, &done); } else error = XFS_ERROR(EINVAL); if (error) diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c index 7a231ff..25bc7da 100644 --- a/fs/xfs/quota/xfs_qm.c +++ b/fs/xfs/quota/xfs_qm.c @@ -1625,10 +1625,8 @@ xfs_qm_dqusage_adjust( xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* not used */ int ubsize, /* not used */ - void *private_data, /* not used */ xfs_daddr_t bno, /* starting block of inode cluster */ int *ubused, /* not used */ - void *dip, /* on-disk inode pointer (not used) */ int *res) /* result code value */ { xfs_inode_t *ip; @@ -1789,12 +1787,13 @@ xfs_qm_quotacheck( * Iterate thru all the inodes in the file system, * adjusting the corresponding dquot counters in core. */ - if ((error = xfs_bulkstat(mp, &lastino, &count, - xfs_qm_dqusage_adjust, NULL, - structsz, NULL, BULKSTAT_FG_IGET, &done))) + error = xfs_bulkstat(mp, &lastino, &count, + xfs_qm_dqusage_adjust, + structsz, NULL, &done); + if (error) break; - } while (! done); + } while (!done); /* * We've made all the changes that we need to make incore. diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c index 19f218c..aa44c58 100644 --- a/fs/xfs/quota/xfs_qm_syscalls.c +++ b/fs/xfs/quota/xfs_qm_syscalls.c @@ -1095,10 +1095,8 @@ xfs_qm_internalqcheck_adjust( xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* not used */ int ubsize, /* not used */ - void *private_data, /* not used */ xfs_daddr_t bno, /* starting block of inode cluster */ int *ubused, /* not used */ - void *dip, /* not used */ int *res) /* bulkstat result code */ { xfs_inode_t *ip; @@ -1191,15 +1189,15 @@ xfs_qm_internalqcheck( * Iterate thru all the inodes in the file system, * adjusting the corresponding dquot counters */ - if ((error = xfs_bulkstat(mp, &lastino, &count, - xfs_qm_internalqcheck_adjust, NULL, - 0, NULL, BULKSTAT_FG_IGET, &done))) { + error = xfs_bulkstat(mp, &lastino, &count, + xfs_qm_internalqcheck_adjust, + 0, NULL, &done); + if (error) { + cmn_err(CE_DEBUG, "Bulkstat returned error 0x%x", error); break; } - } while (! done); - if (error) { - cmn_err(CE_DEBUG, "Bulkstat returned error 0x%x", error); - } + } while (!done); + cmn_err(CE_DEBUG, "Checking results against system dquots"); for (i = 0; i < qmtest_hashmask; i++) { xfs_dqtest_t *d, *n; diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c index 8314386..f554bd9 100644 --- a/fs/xfs/xfs_itable.c +++ b/fs/xfs/xfs_itable.c @@ -45,24 +45,41 @@ xfs_internal_inum( (ino == mp->m_sb.sb_uquotino || ino == mp->m_sb.sb_gquotino))); } -STATIC int -xfs_bulkstat_one_iget( - xfs_mount_t *mp, /* mount point for filesystem */ - xfs_ino_t ino, /* inode number to get data for */ - xfs_daddr_t bno, /* starting bno of inode cluster */ - xfs_bstat_t *buf, /* return buffer */ - int *stat) /* BULKSTAT_RV_... */ +/* + * Return stat information for one inode. + * Return 0 if ok, else errno. + */ +int +xfs_bulkstat_one_int( + struct xfs_mount *mp, /* mount point for filesystem */ + xfs_ino_t ino, /* inode to get data for */ + void __user *buffer, /* buffer to place output in */ + int ubsize, /* size of buffer */ + bulkstat_one_fmt_pf formatter, /* formatter, copy to user */ + xfs_daddr_t bno, /* starting bno of cluster */ + int *ubused, /* bytes used by me */ + int *stat) /* BULKSTAT_RV_... */ { - xfs_icdinode_t *dic; /* dinode core info pointer */ - xfs_inode_t *ip; /* incore inode pointer */ - struct inode *inode; - int error; + struct xfs_icdinode *dic; /* dinode core info pointer */ + struct xfs_inode *ip; /* incore inode pointer */ + struct inode *inode; + struct xfs_bstat *buf; /* return buffer */ + int error = 0; /* error value */ + + *stat = BULKSTAT_RV_NOTHING; + + if (!buffer || xfs_internal_inum(mp, ino)) + return XFS_ERROR(EINVAL); + + buf = kmem_alloc(sizeof(*buf), KM_SLEEP | KM_MAYFAIL); + if (!buf) + return XFS_ERROR(ENOMEM); error = xfs_iget(mp, NULL, ino, XFS_IGET_BULKSTAT, XFS_ILOCK_SHARED, &ip, bno); if (error) { *stat = BULKSTAT_RV_NOTHING; - return error; + goto out_free; } ASSERT(ip != NULL); @@ -123,77 +140,16 @@ xfs_bulkstat_one_iget( buf->bs_blocks = dic->di_nblocks + ip->i_delayed_blks; break; } - xfs_iput(ip, XFS_ILOCK_SHARED); - return error; -} -STATIC void -xfs_bulkstat_one_dinode( - xfs_mount_t *mp, /* mount point for filesystem */ - xfs_ino_t ino, /* inode number to get data for */ - xfs_dinode_t *dic, /* dinode inode pointer */ - xfs_bstat_t *buf) /* return buffer */ -{ - /* - * The inode format changed when we moved the link count and - * made it 32 bits long. If this is an old format inode, - * convert it in memory to look like a new one. If it gets - * flushed to disk we will convert back before flushing or - * logging it. We zero out the new projid field and the old link - * count field. We'll handle clearing the pad field (the remains - * of the old uuid field) when we actually convert the inode to - * the new format. We don't change the version number so that we - * can distinguish this from a real new format inode. - */ - if (dic->di_version == 1) { - buf->bs_nlink = be16_to_cpu(dic->di_onlink); - buf->bs_projid = 0; - } else { - buf->bs_nlink = be32_to_cpu(dic->di_nlink); - buf->bs_projid = be16_to_cpu(dic->di_projid); - } + error = formatter(buffer, ubsize, ubused, buf); - buf->bs_ino = ino; - buf->bs_mode = be16_to_cpu(dic->di_mode); - buf->bs_uid = be32_to_cpu(dic->di_uid); - buf->bs_gid = be32_to_cpu(dic->di_gid); - buf->bs_size = be64_to_cpu(dic->di_size); - buf->bs_atime.tv_sec = be32_to_cpu(dic->di_atime.t_sec); - buf->bs_atime.tv_nsec = be32_to_cpu(dic->di_atime.t_nsec); - buf->bs_mtime.tv_sec = be32_to_cpu(dic->di_mtime.t_sec); - buf->bs_mtime.tv_nsec = be32_to_cpu(dic->di_mtime.t_nsec); - buf->bs_ctime.tv_sec = be32_to_cpu(dic->di_ctime.t_sec); - buf->bs_ctime.tv_nsec = be32_to_cpu(dic->di_ctime.t_nsec); - buf->bs_xflags = xfs_dic2xflags(dic); - buf->bs_extsize = be32_to_cpu(dic->di_extsize) << mp->m_sb.sb_blocklog; - buf->bs_extents = be32_to_cpu(dic->di_nextents); - buf->bs_gen = be32_to_cpu(dic->di_gen); - memset(buf->bs_pad, 0, sizeof(buf->bs_pad)); - buf->bs_dmevmask = be32_to_cpu(dic->di_dmevmask); - buf->bs_dmstate = be16_to_cpu(dic->di_dmstate); - buf->bs_aextents = be16_to_cpu(dic->di_anextents); - buf->bs_forkoff = XFS_DFORK_BOFF(dic); + if (!error) + *stat = BULKSTAT_RV_DIDONE; - switch (dic->di_format) { - case XFS_DINODE_FMT_DEV: - buf->bs_rdev = xfs_dinode_get_rdev(dic); - buf->bs_blksize = BLKDEV_IOSIZE; - buf->bs_blocks = 0; - break; - case XFS_DINODE_FMT_LOCAL: - case XFS_DINODE_FMT_UUID: - buf->bs_rdev = 0; - buf->bs_blksize = mp->m_sb.sb_blocksize; - buf->bs_blocks = 0; - break; - case XFS_DINODE_FMT_EXTENTS: - case XFS_DINODE_FMT_BTREE: - buf->bs_rdev = 0; - buf->bs_blksize = mp->m_sb.sb_blocksize; - buf->bs_blocks = be64_to_cpu(dic->di_nblocks); - break; - } + out_free: + kmem_free(buf); + return error; } /* Return 0 on success or positive error */ @@ -213,118 +169,19 @@ xfs_bulkstat_one_fmt( return 0; } -/* - * Return stat information for one inode. - * Return 0 if ok, else errno. - */ -int /* error status */ -xfs_bulkstat_one_int( - xfs_mount_t *mp, /* mount point for filesystem */ - xfs_ino_t ino, /* inode number to get data for */ - void __user *buffer, /* buffer to place output in */ - int ubsize, /* size of buffer */ - bulkstat_one_fmt_pf formatter, /* formatter, copy to user */ - xfs_daddr_t bno, /* starting bno of inode cluster */ - int *ubused, /* bytes used by me */ - void *dibuff, /* on-disk inode buffer */ - int *stat) /* BULKSTAT_RV_... */ -{ - xfs_bstat_t *buf; /* return buffer */ - int error = 0; /* error value */ - xfs_dinode_t *dip; /* dinode inode pointer */ - - dip = (xfs_dinode_t *)dibuff; - *stat = BULKSTAT_RV_NOTHING; - - if (!buffer || xfs_internal_inum(mp, ino)) - return XFS_ERROR(EINVAL); - - buf = kmem_alloc(sizeof(*buf), KM_SLEEP); - - if (dip == NULL) { - /* We're not being passed a pointer to a dinode. This happens - * if BULKSTAT_FG_IGET is selected. Do the iget. - */ - error = xfs_bulkstat_one_iget(mp, ino, bno, buf, stat); - if (error) - goto out_free; - } else { - xfs_bulkstat_one_dinode(mp, ino, dip, buf); - } - - error = formatter(buffer, ubsize, ubused, buf); - if (error) - goto out_free; - - *stat = BULKSTAT_RV_DIDONE; - - out_free: - kmem_free(buf); - return error; -} - int xfs_bulkstat_one( xfs_mount_t *mp, /* mount point for filesystem */ xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* buffer to place output in */ int ubsize, /* size of buffer */ - void *private_data, /* my private data */ xfs_daddr_t bno, /* starting bno of inode cluster */ int *ubused, /* bytes used by me */ - void *dibuff, /* on-disk inode buffer */ int *stat) /* BULKSTAT_RV_... */ { return xfs_bulkstat_one_int(mp, ino, buffer, ubsize, xfs_bulkstat_one_fmt, bno, - ubused, dibuff, stat); -} - -/* - * Test to see whether we can use the ondisk inode directly, based - * on the given bulkstat flags, filling in dipp accordingly. - * Returns zero if the inode is dodgey. - */ -STATIC int -xfs_bulkstat_use_dinode( - xfs_mount_t *mp, - int flags, - xfs_buf_t *bp, - int clustidx, - xfs_dinode_t **dipp) -{ - xfs_dinode_t *dip; - unsigned int aformat; - - *dipp = NULL; - if (!bp || (flags & BULKSTAT_FG_IGET)) - return 1; - dip = (xfs_dinode_t *) - xfs_buf_offset(bp, clustidx << mp->m_sb.sb_inodelog); - /* - * Check the buffer containing the on-disk inode for di_mode == 0. - * This is to prevent xfs_bulkstat from picking up just reclaimed - * inodes that have their in-core state initialized but not flushed - * to disk yet. This is a temporary hack that would require a proper - * fix in the future. - */ - if (be16_to_cpu(dip->di_magic) != XFS_DINODE_MAGIC || - !XFS_DINODE_GOOD_VERSION(dip->di_version) || - !dip->di_mode) - return 0; - if (flags & BULKSTAT_FG_QUICK) { - *dipp = dip; - return 1; - } - /* BULKSTAT_FG_INLINE: if attr fork is local, or not there, use it */ - aformat = dip->di_aformat; - if ((XFS_DFORK_Q(dip) == 0) || - (aformat == XFS_DINODE_FMT_LOCAL) || - (aformat == XFS_DINODE_FMT_EXTENTS && !dip->di_anextents)) { - *dipp = dip; - return 1; - } - return 1; + ubused, stat); } #define XFS_BULKSTAT_UBLEFT(ubleft) ((ubleft) >= statstruct_size) @@ -338,10 +195,8 @@ xfs_bulkstat( xfs_ino_t *lastinop, /* last inode returned */ int *ubcountp, /* size of buffer/count returned */ bulkstat_one_pf formatter, /* func that'd fill a single buf */ - void *private_data,/* private data for formatter */ size_t statstruct_size, /* sizeof struct filling */ char __user *ubuffer, /* buffer with inode stats */ - int flags, /* defined in xfs_itable.h */ int *done) /* 1 if there are more stats to get */ { xfs_agblock_t agbno=0;/* allocation group block number */ @@ -376,14 +231,12 @@ xfs_bulkstat( int ubelem; /* spaces used in user's buffer */ int ubused; /* bytes used by formatter */ xfs_buf_t *bp; /* ptr to on-disk inode cluster buf */ - xfs_dinode_t *dip; /* ptr into bp for specific inode */ /* * Get the last inode value, see if there's nothing to do. */ ino = (xfs_ino_t)*lastinop; lastino = ino; - dip = NULL; agno = XFS_INO_TO_AGNO(mp, ino); agino = XFS_INO_TO_AGINO(mp, ino); if (agno >= mp->m_sb.sb_agcount || @@ -608,37 +461,6 @@ xfs_bulkstat( irbp->ir_startino) + ((chunkidx & nimask) >> mp->m_sb.sb_inopblog); - - if (flags & (BULKSTAT_FG_QUICK | - BULKSTAT_FG_INLINE)) { - int offset; - - ino = XFS_AGINO_TO_INO(mp, agno, - agino); - bno = XFS_AGB_TO_DADDR(mp, agno, - agbno); - - /* - * Get the inode cluster buffer - */ - if (bp) - xfs_buf_relse(bp); - - error = xfs_inotobp(mp, NULL, ino, &dip, - &bp, &offset, - XFS_IGET_BULKSTAT); - - if (!error) - clustidx = offset / mp->m_sb.sb_inodesize; - if (XFS_TEST_ERROR(error != 0, - mp, XFS_ERRTAG_BULKSTAT_READ_CHUNK, - XFS_RANDOM_BULKSTAT_READ_CHUNK)) { - bp = NULL; - ubleft = 0; - rval = error; - break; - } - } } ino = XFS_AGINO_TO_INO(mp, agno, agino); bno = XFS_AGB_TO_DADDR(mp, agno, agbno); @@ -654,35 +476,13 @@ xfs_bulkstat( * when the chunk is used up. */ irbp->ir_freecount++; - if (!xfs_bulkstat_use_dinode(mp, flags, bp, - clustidx, &dip)) { - lastino = ino; - continue; - } - /* - * If we need to do an iget, cannot hold bp. - * Drop it, until starting the next cluster. - */ - if ((flags & BULKSTAT_FG_INLINE) && !dip) { - if (bp) - xfs_buf_relse(bp); - bp = NULL; - } /* * Get the inode and fill in a single buffer. - * BULKSTAT_FG_QUICK uses dip to fill it in. - * BULKSTAT_FG_IGET uses igets. - * BULKSTAT_FG_INLINE uses dip if we have an - * inline attr fork, else igets. - * See: xfs_bulkstat_one & xfs_dm_bulkstat_one. - * This is also used to count inodes/blks, etc - * in xfs_qm_quotacheck. */ ubused = statstruct_size; - error = formatter(mp, ino, ubufp, - ubleft, private_data, - bno, &ubused, dip, &fmterror); + error = formatter(mp, ino, ubufp, ubleft, bno, + &ubused, &fmterror); if (fmterror == BULKSTAT_RV_NOTHING) { if (error && error != ENOENT && error != EINVAL) { @@ -775,7 +575,7 @@ xfs_bulkstat_single( ino = (xfs_ino_t)*lastinop; error = xfs_bulkstat_one(mp, ino, buffer, sizeof(xfs_bstat_t), - NULL, 0, NULL, NULL, &res); + 0, NULL, &res); if (error) { /* * Special case way failed, do it the "long" way @@ -784,8 +584,7 @@ xfs_bulkstat_single( (*lastinop)--; count = 1; if (xfs_bulkstat(mp, lastinop, &count, xfs_bulkstat_one, - NULL, sizeof(xfs_bstat_t), buffer, - BULKSTAT_FG_IGET, done)) + sizeof(xfs_bstat_t), buffer, done)) return error; if (count == 0 || (xfs_ino_t)*lastinop != ino) return error == EFSCORRUPTED ? diff --git a/fs/xfs/xfs_itable.h b/fs/xfs/xfs_itable.h index 20792bf..fea0339 100644 --- a/fs/xfs/xfs_itable.h +++ b/fs/xfs/xfs_itable.h @@ -27,10 +27,8 @@ typedef int (*bulkstat_one_pf)(struct xfs_mount *mp, xfs_ino_t ino, void __user *buffer, int ubsize, - void *private_data, xfs_daddr_t bno, int *ubused, - void *dip, int *stat); /* @@ -41,13 +39,6 @@ typedef int (*bulkstat_one_pf)(struct xfs_mount *mp, #define BULKSTAT_RV_GIVEUP 2 /* - * Values for bulkstat flag argument. - */ -#define BULKSTAT_FG_IGET 0x1 /* Go through the buffer cache */ -#define BULKSTAT_FG_QUICK 0x2 /* No iget, walk the dinode cluster */ -#define BULKSTAT_FG_INLINE 0x4 /* No iget if inline attrs */ - -/* * Return stat information in bulk (by-inode) for the filesystem. */ int /* error status */ @@ -56,10 +47,8 @@ xfs_bulkstat( xfs_ino_t *lastino, /* last inode returned */ int *count, /* size of buffer/count returned */ bulkstat_one_pf formatter, /* func that'd fill a single buf */ - void *private_data, /* private data for formatter */ size_t statstruct_size,/* sizeof struct that we're filling */ char __user *ubuffer,/* buffer with inode stats */ - int flags, /* flag to control access method */ int *done); /* 1 if there are more stats to get */ int @@ -84,7 +73,6 @@ xfs_bulkstat_one_int( bulkstat_one_fmt_pf formatter, xfs_daddr_t bno, int *ubused, - void *dibuff, int *stat); int @@ -93,10 +81,8 @@ xfs_bulkstat_one( xfs_ino_t ino, void __user *buffer, int ubsize, - void *private_data, xfs_daddr_t bno, int *ubused, - void *dibuff, int *stat); typedef int (*inumbers_fmt_pf)( -- 1.7.1 From xiaowei.hu@oracle.com Sun Jun 20 21:53:15 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_43 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L2rE5R097179 for ; Sun, 20 Jun 2010 21:53:15 -0500 X-ASG-Debug-ID: 1277088953-674303890000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from rcsinet10.oracle.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id A92171E11B48 for ; Sun, 20 Jun 2010 19:55:53 -0700 (PDT) Received: from rcsinet10.oracle.com (rcsinet10.oracle.com [148.87.113.121]) by cuda.sgi.com with ESMTP id nByTQobZRqHCAvtC for ; Sun, 20 Jun 2010 19:55:53 -0700 (PDT) Received: from rcsinet15.oracle.com (rcsinet15.oracle.com [148.87.113.117]) by rcsinet10.oracle.com (Switch-3.4.2/Switch-3.4.2) with ESMTP id o5L2tpd7013431 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Mon, 21 Jun 2010 02:55:52 GMT Received: from acsmt355.oracle.com (acsmt355.oracle.com [141.146.40.155]) by rcsinet15.oracle.com (Switch-3.4.2/Switch-3.4.1) with ESMTP id o5L2tkFM024706 for ; Mon, 21 Jun 2010 02:55:46 GMT Received: from abhmt001.oracle.com by acsmt355.oracle.com with ESMTP id 358591191277088921; Sun, 20 Jun 2010 19:55:21 -0700 Received: from [10.182.120.139] (/10.182.120.139) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Sun, 20 Jun 2010 19:55:21 -0700 X-ASG-Orig-Subj: segment fault when running xfs_check -s Subject: segment fault when running xfs_check -s From: xiaowei hu Reply-To: xiaowei.hu@oracle.com To: xfs@oss.sgi.com Cc: wen.gang.wang@oracle.com Content-Type: text/plain; charset="UTF-8" Organization: Oracle Date: Mon, 21 Jun 2010 10:55:18 +0800 Message-ID: <1277088918.20616.81.camel@redfuture-desktop> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit X-Auth-Type: Internal IP X-Source-IP: rcsinet15.oracle.com [148.87.113.117] X-CT-RefId: str=0001.0A090204.4C1ED4B9.0043:SCFMA4539811,ss=1,fgs=0 X-Barracuda-Connect: rcsinet10.oracle.com[148.87.113.121] X-Barracuda-Start-Time: 1277088954 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33098 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hi, Recently I was playing with xfsprogs, and did some test on xfs_check tools in this mothod: 1.make a xfs fs on one partition. mkfs.xfs -f /dev/sda2 2.randomly modify some blocks on this volume using xfs_db. xfs_db -x -c blockget -c "blocktrash -3 -s 36 -n 81" /dev/sda2 3.run xfs_check -s xfs_check -s /dev/sda2 the output saying: [root@test1 ~]# xfs_check -s /dev/sda2 bad version number 0x78 for inode 135 bad magic number 0xa855 for inode 154 bad magic number 0x5024 for inode 165 /usr/local/bin/xfs_check: line 28: 769 Segmentation fault xfs_db $DBOPTS -F -i -p xfs_check -c "blockget$OPTS" $1 if I run xfs_check without -s option, don't have this fault. Is this a known problem? I tried the latest code ,also have this problem. thanks, Xiaowei From xfs@tlinx.org Sun Jun 20 23:32:46 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L4Wj6U100789 for ; Sun, 20 Jun 2010 23:32:45 -0500 X-ASG-Debug-ID: 1277094918-2b1d030a0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from Ishtar.sc.tlinx.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 27FE73EE4D1 for ; Sun, 20 Jun 2010 21:35:20 -0700 (PDT) Received: from Ishtar.sc.tlinx.org (ishtar.tlinx.org [173.164.175.65]) by cuda.sgi.com with ESMTP id EvNOnm0D8GBRzwbx for ; Sun, 20 Jun 2010 21:35:20 -0700 (PDT) Received: from [192.168.3.12] (Athenae [192.168.3.12]) by Ishtar.sc.tlinx.org (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L4ZDir026571 for ; Sun, 20 Jun 2010 21:35:15 -0700 Message-ID: <4C1EEC01.9090509@tlinx.org> Date: Sun, 20 Jun 2010 21:35:13 -0700 From: "Linda A. Walsh" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.8.1.24) Gecko/20100228 Lightning/0.9 Thunderbird/2.0.0.24 Mnenhy/0.7.6.666 MIME-Version: 1.0 To: xfs-oss X-ASG-Orig-Subj: xfs partition layout and using xfs_growfs Subject: xfs partition layout and using xfs_growfs X-Stationery: 0.5.1 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: ishtar.tlinx.org[173.164.175.65] X-Barracuda-Start-Time: 1277094925 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0024 1.0000 -2.0055 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.60 X-Barracuda-Spam-Status: No, SCORE=-1.60 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=SUBJECT_FUZZY_TION X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33104 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.41 SUBJECT_FUZZY_TION Attempt to obfuscate words in Subject: X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Is there any difference in a file systems layout and efficiency between to xfs fs's of the same size, but where one was created at size '100%', where the other was created at size 50%, but then grown iteratively to 60, 70, 80, 90 and then 100% over time as it filled? Would the final file systems look pretty much the same and have roughly the same performance characteristics? Assume, for sake of argument, that the file system was grown before space got tight enough to cause any severe large file fragmentation. I've been under the impression that one gained some performance benefits if one laid out the whole file system at once is that a mis-impression? That asked/said...is there any work underway to create an xfs_shrinkfs, so that one could go the other way? Thanks, Linda From SRS0+8/6Q+21+fromorbit.com=david@internode.on.net Mon Jun 21 00:35:40 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_43 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L5Zdv0105773 for ; Mon, 21 Jun 2010 00:35:39 -0500 X-ASG-Debug-ID: 1277098697-279402b50000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id F1E2F150F615 for ; Sun, 20 Jun 2010 22:38:17 -0700 (PDT) Received: from mail.internode.on.net (bld-mail15.adl6.internode.on.net [150.101.137.100]) by cuda.sgi.com with ESMTP id o1pLWImu0LqKI8b7 for ; Sun, 20 Jun 2010 22:38:17 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 17036326-1927428 for multiple; Mon, 21 Jun 2010 15:08:10 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OQZhr-0003Me-Tu; Mon, 21 Jun 2010 15:38:03 +1000 Date: Mon, 21 Jun 2010 15:38:03 +1000 From: Dave Chinner To: xiaowei hu Cc: xfs@oss.sgi.com, wen.gang.wang@oracle.com X-ASG-Orig-Subj: Re: segment fault when running xfs_check -s Subject: Re: segment fault when running xfs_check -s Message-ID: <20100621053803.GK6590@dastard> References: <1277088918.20616.81.camel@redfuture-desktop> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1277088918.20616.81.camel@redfuture-desktop> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail15.adl6.internode.on.net[150.101.137.100] X-Barracuda-Start-Time: 1277098699 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33108 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, Jun 21, 2010 at 10:55:18AM +0800, xiaowei hu wrote: > Hi, > > Recently I was playing with xfsprogs, and did some test on xfs_check > tools in this mothod: > 1.make a xfs fs on one partition. > mkfs.xfs -f /dev/sda2 > 2.randomly modify some blocks on this volume using xfs_db. > xfs_db -x -c blockget -c "blocktrash -3 -s 36 -n 81" /dev/sda2 > 3.run xfs_check -s > xfs_check -s /dev/sda2 > > the output saying: > [root@test1 ~]# xfs_check -s /dev/sda2 > bad version number 0x78 for inode 135 > bad magic number 0xa855 for inode 154 > bad magic number 0x5024 for inode 165 > /usr/local/bin/xfs_check: line 28: 769 Segmentation fault xfs_db > $DBOPTS -F -i -p xfs_check -c "blockget$OPTS" $1 > > if I run xfs_check without -s option, don't have this fault. > > Is this a known problem? No. > I tried the latest code ,also have this problem. Yeah, the code determining whether to output a message is broken: 2651 if (!isfree) { 2652 id = find_inode(ino, 1); 2653 bno = XFS_INO_TO_FSB(mp, ino); 2654 blkmap = NULL; 2655 } find_inode() checks a list created by the "-i " command line option, so will always return NULL for this test case. Most of the checks do this: 2657 if (!sflag || isfree || id->ilist || CHECK_BLIST(bno)) sflag is set by the "-s" command line option, which is why this problem requires that to be set - the output checks don't get past this otherwise. isfree is a parameter passed into to say whether the inode is allocated or not. The code hence assumes that if !isfree, then id != NULL, which is certainly not the case. Hence it can blow up if id = NULL. The line it crashed on: 2670 if (isfree) { 2671 if (idic.di_nblocks != 0) { 2672 >>>>>> if (!sflag || id->ilist || CHECK_BLIST(bno)) Looks like a clear case of copy-n-paste error - if isfree is set, the id _must_ be null and we go kaboom. It looks like none of the code in this function actually checks for whether id is valid or not after find_inode and dereferencing the reurn pointer. The patch below should fix the problem. Cheers, Dave. -- Dave Chinner david@fromorbit.com --- db/check.c | 29 ++++++++++++++++------------- 1 files changed, 16 insertions(+), 13 deletions(-) diff --git a/db/check.c b/db/check.c index 7620d9c..e0dcf63 100644 --- a/db/check.c +++ b/db/check.c @@ -2619,6 +2619,7 @@ process_inode( xfs_qcnt_t ic = 0; xfs_qcnt_t rc = 0; xfs_dqid_t dqprid; + int v = 0; static char okfmts[] = { 0, /* type 0 unused */ 1 << XFS_DINODE_FMT_DEV, /* FIFO */ @@ -2653,15 +2654,16 @@ process_inode( bno = XFS_INO_TO_FSB(mp, ino); blkmap = NULL; } + v = (!sflag || (id && id->ilist) || CHECK_BLIST(bno)); if (idic.di_magic != XFS_DINODE_MAGIC) { - if (!sflag || isfree || id->ilist || CHECK_BLIST(bno)) + if (isfree || v) dbprintf(_("bad magic number %#x for inode %lld\n"), idic.di_magic, ino); error++; return; } if (!XFS_DINODE_GOOD_VERSION(idic.di_version)) { - if (!sflag || isfree || id->ilist || CHECK_BLIST(bno)) + if (isfree || v) dbprintf(_("bad version number %#x for inode %lld\n"), idic.di_version, ino); error++; @@ -2669,7 +2671,7 @@ process_inode( } if (isfree) { if (idic.di_nblocks != 0) { - if (!sflag || id->ilist || CHECK_BLIST(bno)) + if (v) dbprintf(_("bad nblocks %lld for free inode " "%lld\n"), idic.di_nblocks, ino); @@ -2680,21 +2682,22 @@ process_inode( else nlink = idic.di_nlink; if (nlink != 0) { - if (!sflag || id->ilist || CHECK_BLIST(bno)) + if (v) dbprintf(_("bad nlink %d for free inode %lld\n"), nlink, ino); error++; } if (idic.di_mode != 0) { - if (!sflag || id->ilist || CHECK_BLIST(bno)) + if (v) dbprintf(_("bad mode %#o for free inode %lld\n"), idic.di_mode, ino); error++; } return; } + if (be32_to_cpu(dip->di_next_unlinked) != NULLAGINO) { - if (!sflag || isfree || id->ilist || CHECK_BLIST(bno)) + if (v) dbprintf(_("bad next unlinked %#x for inode %lld\n"), be32_to_cpu(dip->di_next_unlinked), ino); error++; @@ -2704,27 +2707,27 @@ process_inode( */ if ((((idic.di_mode & S_IFMT) >> 12) > 15) || (!(okfmts[(idic.di_mode & S_IFMT) >> 12] & (1 << idic.di_format)))) { - if (!sflag || id->ilist || CHECK_BLIST(bno)) + if (v) dbprintf(_("bad format %d for inode %lld type %#o\n"), idic.di_format, id->ino, idic.di_mode & S_IFMT); error++; return; } if ((unsigned int)XFS_DFORK_ASIZE(dip, mp) >= XFS_LITINO(mp)) { - if (!sflag || id->ilist) + if (v) dbprintf(_("bad fork offset %d for inode %lld\n"), idic.di_forkoff, id->ino); error++; return; } if ((unsigned int)idic.di_aformat > XFS_DINODE_FMT_BTREE) { - if (!sflag || id->ilist) + if (v) dbprintf(_("bad attribute format %d for inode %lld\n"), idic.di_aformat, id->ino); error++; return; } - if (verbose || id->ilist || CHECK_BLIST(bno)) + if (verbose || v) dbprintf(_("inode %lld mode %#o fmt %s " "afmt %s " "nex %d anex %d nblk %lld sz %lld%s%s%s%s%s%s%s\n"), @@ -2844,20 +2847,20 @@ process_inode( } totblocks = totdblocks + totiblocks + atotdblocks + atotiblocks; if (totblocks != idic.di_nblocks) { - if (!sflag || id->ilist || CHECK_BLIST(bno)) + if (v) dbprintf(_("bad nblocks %lld for inode %lld, counted " "%lld\n"), idic.di_nblocks, id->ino, totblocks); error++; } if (nextents != idic.di_nextents) { - if (!sflag || id->ilist || CHECK_BLIST(bno)) + if (v) dbprintf(_("bad nextents %d for inode %lld, counted %d\n"), idic.di_nextents, id->ino, nextents); error++; } if (anextents != idic.di_anextents) { - if (!sflag || id->ilist || CHECK_BLIST(bno)) + if (v) dbprintf(_("bad anextents %d for inode %lld, counted " "%d\n"), idic.di_anextents, id->ino, anextents); From SRS0+fGoV+21+fromorbit.com=david@internode.on.net Mon Jun 21 00:51:07 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L5p7Ag106327 for ; Mon, 21 Jun 2010 00:51:07 -0500 X-ASG-Debug-ID: 1277099868-0a9a03370000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id BCA6414AAD0C for ; Sun, 20 Jun 2010 22:57:49 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id AtyJ20idbt4xxlU5 for ; Sun, 20 Jun 2010 22:57:49 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28746407-1927428 for multiple; Mon, 21 Jun 2010 15:23:43 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OQZx0-0003NL-3N; Mon, 21 Jun 2010 15:53:42 +1000 Date: Mon, 21 Jun 2010 15:53:42 +1000 From: Dave Chinner To: "Linda A. Walsh" Cc: xfs-oss X-ASG-Orig-Subj: Re: xfs partition layout and using xfs_growfs Subject: Re: xfs partition layout and using xfs_growfs Message-ID: <20100621055342.GL6590@dastard> References: <4C1EEC01.9090509@tlinx.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C1EEC01.9090509@tlinx.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1277099870 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.51 X-Barracuda-Spam-Status: No, SCORE=-1.51 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_SC0_SA085, SUBJECT_FUZZY_TION X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33109 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.41 SUBJECT_FUZZY_TION Attempt to obfuscate words in Subject: 0.10 BSF_SC0_SA085 Custom Rule SA085 X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Sun, Jun 20, 2010 at 09:35:13PM -0700, Linda A. Walsh wrote: > > Is there any difference in a file systems layout and efficiency between > to xfs fs's of the same size, but where one was created at size > '100%', where the other was created at size 50%, but then grown > iteratively to 60, 70, 80, 90 and then 100% over time as it filled? Yes. > Would the final file systems look pretty much the same >From a structural perspective, it depends on the size of the AGs in the initial filesystem. If the filesystem was big enough to begin with (i.e. using maximally sized AGs at mkfs time) then growing it will result in a layout exactly the same as if it was mkfs'd at full size. However, the allocation patterns will be significantly different between the two filesystems, so there will be no similarity in data layout between the two different filesystems. > and have roughly the > same performance characteristics? See previous answer. > Assume, for sake of argument, that the > file system was grown before space got tight enough to cause any > severe large file fragmentation. See previous answer. ;) > I've been under the impression that one gained some performance benefits if one > laid out the whole file system at once is that a mis-impression? I wouldn't say you "gain performance benefits" by starting with a larger filesystem, more that a grown filesystem has different aging characteristics to one that has not been grown. See previous answer. ;) > That asked/said...is there any work underway to create an xfs_shrinkfs, so > that one could go the other way? http://xfs.org/index.php/Shrinking_Support Cheers, Dave. -- Dave Chinner david@fromorbit.com From BATV+3dae0f5530bf0d1cca01+2493+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 21 02:18:42 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L7Idrt110170 for ; Mon, 21 Jun 2010 02:18:42 -0500 X-ASG-Debug-ID: 1277105123-62f501290000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 487C414AAB62 for ; Mon, 21 Jun 2010 00:25:23 -0700 (PDT) Received: from bombadil.infradead.org ([18.85.46.34]) by cuda.sgi.com with ESMTP id 96eXZFKNuIP6ubyM for ; Mon, 21 Jun 2010 00:25:23 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQbJm-0002wI-A6; Mon, 21 Jun 2010 07:21:18 +0000 Date: Mon, 21 Jun 2010 03:21:18 -0400 From: Christoph Hellwig To: Mario Bachmann Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: vmalloc, xfs_buf_get: failed to map pages Subject: Re: vmalloc, xfs_buf_get: failed to map pages Message-ID: <20100621072118.GA1361@infradead.org> References: <20100619150119.3ce64102@x2.grafnetz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100619150119.3ce64102@x2.grafnetz> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[18.85.46.34] X-Barracuda-Start-Time: 1277105124 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Sat, Jun 19, 2010 at 03:01:19PM +0200, Mario Bachmann wrote: > Hello, > > on a 32bit machine, I have big problems with Linux 2.6.34. > With Linux 2.6.33.4 everything runs fine. > > I do not know where to search for known bugs in xfs. > > /var/log/messages shows a lot of lines: > > Jun 19 11:43:15 amd2000 kernel: vmap allocation for size 4194304 failed: use vmalloc= to increase size. > Jun 19 11:43:15 amd2000 kernel: xfs_buf_get: failed to map pages > > What to to? Strange. There have been no fixes to the vmap allocator nor to the XFS using this. What other modules are you ising? Maybe they increased their amount of used vmalloc space. For now the only thing you can do is using the vmalloc= kernel paramter to increase the vmalloc space. From BATV+3dae0f5530bf0d1cca01+2493+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 21 02:18:57 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L7IuaC110194 for ; Mon, 21 Jun 2010 02:18:57 -0500 X-ASG-Debug-ID: 1277105141-479003950000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id B21BF14AAB67 for ; Mon, 21 Jun 2010 00:25:41 -0700 (PDT) Received: from bombadil.infradead.org ([18.85.46.34]) by cuda.sgi.com with ESMTP id hda3txC2yEf7RXXm for ; Mon, 21 Jun 2010 00:25:41 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQbK1-0002zW-Ro; Mon, 21 Jun 2010 07:21:33 +0000 Date: Mon, 21 Jun 2010 03:21:33 -0400 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfsqa: test 214 leaves files around that cause 236 to fail Subject: Re: [PATCH] xfsqa: test 214 leaves files around that cause 236 to fail Message-ID: <20100621072133.GB1361@infradead.org> References: <1277077378-17927-1-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1277077378-17927-1-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[18.85.46.34] X-Barracuda-Start-Time: 1277105141 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, Jun 21, 2010 at 09:42:58AM +1000, Dave Chinner wrote: > From: Dave Chinner > > Test 214 and 236 use the same file names for test files in the TEST > filesystem and don't check/create clean initial test state. Hence if > you run 214 then 236, 236 will fail with: > > +link: cannot create link `/mnt/test/ouch2' to `/mnt/test/ouch': File exists > +ctime: 1277076527 -> 1277076527 > +Fatal error: ctime not updated after link > > Ensure that both tests clean up after themselves properly and also > ensure a clean state before they start. Looks good, Reviewed-by: Christoph Hellwig From BATV+3dae0f5530bf0d1cca01+2493+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 21 02:19:09 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L7J81r110216 for ; Mon, 21 Jun 2010 02:19:09 -0500 X-ASG-Debug-ID: 1277105153-62bf014e0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id E572E14AAB6E for ; Mon, 21 Jun 2010 00:25:53 -0700 (PDT) Received: from bombadil.infradead.org ([18.85.46.34]) by cuda.sgi.com with ESMTP id 05pW5tjYoTazdF2b for ; Mon, 21 Jun 2010 00:25:53 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQbKG-00032p-BM; Mon, 21 Jun 2010 07:21:48 +0000 Date: Mon, 21 Jun 2010 03:21:48 -0400 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com, security@kernel.org X-ASG-Orig-Subj: Re: [PATCH 2/4] xfs: validate untrusted inode numbers during lookup Subject: Re: [PATCH 2/4] xfs: validate untrusted inode numbers during lookup Message-ID: <20100621072148.GC1361@infradead.org> References: <1277078341-19087-1-git-send-email-david@fromorbit.com> <1277078341-19087-3-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1277078341-19087-3-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[18.85.46.34] X-Barracuda-Start-Time: 1277105153 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Looks good, Reviewed-by: Christoph Hellwig From BATV+3dae0f5530bf0d1cca01+2493+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 21 02:19:20 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L7JJCN110236 for ; Mon, 21 Jun 2010 02:19:20 -0500 X-ASG-Debug-ID: 1277104919-7813011b0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 74B583EEE4B for ; Mon, 21 Jun 2010 00:22:00 -0700 (PDT) Received: from bombadil.infradead.org ([18.85.46.34]) by cuda.sgi.com with ESMTP id R3UkqkFxWxGgH7UW for ; Mon, 21 Jun 2010 00:22:00 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQbKR-00034M-Md; Mon, 21 Jun 2010 07:21:59 +0000 Date: Mon, 21 Jun 2010 03:21:59 -0400 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com, security@kernel.org X-ASG-Orig-Subj: Re: [PATCH 3/4] xfs: rename XFS_IGET_BULKSTAT to XFS_IGET_UNTRUSTED Subject: Re: [PATCH 3/4] xfs: rename XFS_IGET_BULKSTAT to XFS_IGET_UNTRUSTED Message-ID: <20100621072159.GD1361@infradead.org> References: <1277078341-19087-1-git-send-email-david@fromorbit.com> <1277078341-19087-4-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1277078341-19087-4-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[18.85.46.34] X-Barracuda-Start-Time: 1277104920 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, Jun 21, 2010 at 09:59:00AM +1000, Dave Chinner wrote: > From: Dave Chinner > > Inode numbers may come from somewhere external to the filesystem > (e.g. file handles, bulkstat information) and so are inherently > untrusted. Rename the flag we use for these lookups to make it > obvious we are doing a lookup of an untrusted inode number and need > to verify it completely before trying to read it from disk. > > Signed-off-by: Dave Chinner Looks good, Reviewed-by: Christoph Hellwig From BATV+3dae0f5530bf0d1cca01+2493+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 21 02:19:36 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L7Jamf110255 for ; Mon, 21 Jun 2010 02:19:36 -0500 X-ASG-Debug-ID: 1277104936-79d702590000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 29D7E151077E for ; Mon, 21 Jun 2010 00:22:17 -0700 (PDT) Received: from bombadil.infradead.org ([18.85.46.34]) by cuda.sgi.com with ESMTP id fHGABwUgyHnFIwah for ; Mon, 21 Jun 2010 00:22:17 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQbKi-00036w-PO; Mon, 21 Jun 2010 07:22:16 +0000 Date: Mon, 21 Jun 2010 03:22:16 -0400 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com, security@kernel.org X-ASG-Orig-Subj: Re: [PATCH 4/4] xfs: remove block number from inode lookup code Subject: Re: [PATCH 4/4] xfs: remove block number from inode lookup code Message-ID: <20100621072216.GE1361@infradead.org> References: <1277078341-19087-1-git-send-email-david@fromorbit.com> <1277078341-19087-5-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1277078341-19087-5-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[18.85.46.34] X-Barracuda-Start-Time: 1277104937 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, Jun 21, 2010 at 09:59:01AM +1000, Dave Chinner wrote: > From: Dave Chinner > > The block number comes from bulkstat based inode lookups to shortcut > the mapping calculations. We ar enot able to trust anything from > bulkstat, so drop the block number as well so that the correct > lookups and mappings are always done. Looks good, Reviewed-by: Christoph Hellwig From BATV+3dae0f5530bf0d1cca01+2493+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 21 02:40:45 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L7ejbh111201 for ; Mon, 21 Jun 2010 02:40:45 -0500 X-ASG-Debug-ID: 1277106205-77f701490000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id EBCE23EEF02 for ; Mon, 21 Jun 2010 00:43:25 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id d64XaIfGwQByakKq for ; Mon, 21 Jun 2010 00:43:25 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQbfB-0000PP-D7; Mon, 21 Jun 2010 07:43:25 +0000 Date: Mon, 21 Jun 2010 03:43:25 -0400 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfsqa: test open_by_handle() on unlinked and freed inode clusters V2 Subject: Re: [PATCH] xfsqa: test open_by_handle() on unlinked and freed inode clusters V2 Message-ID: <20100621074325.GA1301@infradead.org> References: <1276756659-12338-1-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1276756659-12338-1-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277106205 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Looks good, Reviewed-by: Christoph Hellwig From BATV+3dae0f5530bf0d1cca01+2493+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 21 03:33:28 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L8XS4u113450 for ; Mon, 21 Jun 2010 03:33:28 -0500 X-ASG-Debug-ID: 1277109613-62d603180000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 686881454783 for ; Mon, 21 Jun 2010 01:40:13 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id IpqHqIxhCYHRC36P for ; Mon, 21 Jun 2010 01:40:13 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQcUA-0007Y9-MO; Mon, 21 Jun 2010 08:36:06 +0000 Message-Id: <20100621083606.569096949@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Mon, 21 Jun 2010 04:35:45 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com Cc: Eric Sandeen X-ASG-Orig-Subj: [PATCH 02/12] xfs: fix corruption case for block size < page size Subject: [PATCH 02/12] xfs: fix corruption case for block size < page size References: <20100621083543.125860679@bombadil.infradead.org> Content-Disposition: inline; filename=xfs-fix-194 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277109613 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean xfstests 194 first truncats a file back and then extends it again by truncating it to a larger size. This causes discard_buffer to drop the mapped, but not the uptodate bit and thus creates something that xfs_page_state_convert takes for unmapped space created by mmap because it doesn't check for the dirty bit, which also gets cleared by discard_buffer and checked by other ->writepage implementations like block_write_full_page. Handle this kind of buffers early, and unlike Eric's first version of the patch simply ASSERT that the buffers is dirty, given that the mmap write case can't happen anymore since the introduction of ->page_mkwrite. The now dead code dealing with that will be deleted in a follow on patch. Signed-off-by: Eric Sandeen Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner Index: xfs/fs/xfs/linux-2.6/xfs_aops.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_aops.c 2010-06-10 08:59:49.598004335 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_aops.c 2010-06-11 09:20:31.292254712 +0200 @@ -1125,6 +1125,16 @@ xfs_page_state_convert( continue; } + /* + * A hole may still be marked uptodate because discard_buffer + * leaves the flag set. + */ + if (!buffer_mapped(bh) && buffer_uptodate(bh)) { + ASSERT(!buffer_dirty(bh)); + imap_valid = 0; + continue; + } + if (imap_valid) imap_valid = xfs_imap_valid(inode, &imap, offset); From BATV+3dae0f5530bf0d1cca01+2493+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 21 03:33:28 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-4.9 required=5.0 tests=BAYES_00,LOCAL_GNU_PATCH autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L8XQk1113434 for ; Mon, 21 Jun 2010 03:33:28 -0500 X-ASG-Debug-ID: 1277109367-136f02150000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 4735815113FF for ; Mon, 21 Jun 2010 01:36:07 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id 9sE7BUsnNV2zaELh for ; Mon, 21 Jun 2010 01:36:07 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQcUA-0007Ye-TL for xfs@oss.sgi.com; Mon, 21 Jun 2010 08:36:06 +0000 Message-Id: <20100621083606.767195918@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Mon, 21 Jun 2010 04:35:46 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH 03/12] xfs: simplify xfs_vm_releasepage Subject: [PATCH 03/12] xfs: simplify xfs_vm_releasepage References: <20100621083543.125860679@bombadil.infradead.org> Content-Disposition: inline; filename=xfs-simplify-releasepage X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277109367 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Currently the xfs releasepage implementation has code to deal with converting delayed allocated and unwritten space. But we never get called for those as we always convert delayed and unwritten space when cleaning a page, or drop the state from the buffers in block_invalidatepage. We still keep a WARN_ON on those cases for now, but remove all the case dealing with it, which allows to fold xfs_page_state_convert into xfs_vm_writepage and remove the !startio case from the whole writeback path. Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner Index: xfs/fs/xfs/linux-2.6/xfs_aops.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_aops.c 2010-06-11 09:22:13.864253873 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_aops.c 2010-06-11 09:27:27.602003840 +0200 @@ -754,7 +754,6 @@ xfs_convert_page( struct xfs_bmbt_irec *imap, xfs_ioend_t **ioendp, struct writeback_control *wbc, - int startio, int all_bh) { struct buffer_head *bh, *head; @@ -825,19 +824,14 @@ xfs_convert_page( ASSERT(imap->br_startblock != DELAYSTARTBLOCK); xfs_map_at_offset(inode, bh, imap, offset); - if (startio) { - xfs_add_to_ioend(inode, bh, offset, - type, ioendp, done); - } else { - set_buffer_dirty(bh); - unlock_buffer(bh); - mark_buffer_dirty(bh); - } + xfs_add_to_ioend(inode, bh, offset, type, + ioendp, done); + page_dirty--; count++; } else { type = IO_NEW; - if (buffer_mapped(bh) && all_bh && startio) { + if (buffer_mapped(bh) && all_bh) { lock_buffer(bh); xfs_add_to_ioend(inode, bh, offset, type, ioendp, done); @@ -852,14 +846,12 @@ xfs_convert_page( if (uptodate && bh == head) SetPageUptodate(page); - if (startio) { - if (count) { - wbc->nr_to_write--; - if (wbc->nr_to_write <= 0) - done = 1; - } - xfs_start_page_writeback(page, !page_dirty, count); + if (count) { + wbc->nr_to_write--; + if (wbc->nr_to_write <= 0) + done = 1; } + xfs_start_page_writeback(page, !page_dirty, count); return done; fail_unlock_page: @@ -879,7 +871,6 @@ xfs_cluster_write( struct xfs_bmbt_irec *imap, xfs_ioend_t **ioendp, struct writeback_control *wbc, - int startio, int all_bh, pgoff_t tlast) { @@ -895,7 +886,7 @@ xfs_cluster_write( for (i = 0; i < pagevec_count(&pvec); i++) { done = xfs_convert_page(inode, pvec.pages[i], tindex++, - imap, ioendp, wbc, startio, all_bh); + imap, ioendp, wbc, all_bh); if (done) break; } @@ -1025,51 +1016,101 @@ out_invalidate: } /* - * Calling this without startio set means we are being asked to make a dirty - * page ready for freeing it's buffers. When called with startio set then - * we are coming from writepage. + * Write out a dirty page. * - * When called with startio set it is important that we write the WHOLE - * page if possible. - * The bh->b_state's cannot know if any of the blocks or which block for - * that matter are dirty due to mmap writes, and therefore bh uptodate is - * only valid if the page itself isn't completely uptodate. Some layers - * may clear the page dirty flag prior to calling write page, under the - * assumption the entire page will be written out; by not writing out the - * whole page the page can be reused before all valid dirty data is - * written out. Note: in the case of a page that has been dirty'd by - * mapwrite and but partially setup by block_prepare_write the - * bh->b_states's will not agree and only ones setup by BPW/BCW will have - * valid state, thus the whole page must be written out thing. + * For delalloc space on the page we need to allocate space and flush it. + * For unwritten space on the page we need to start the conversion to + * regular allocated space. + * For unmapped buffer heads on the page we should allocate space if the + * page is uptodate. + * For any other dirty buffer heads on the page we should flush them. + * + * If we detect that a transaction would be required to flush the page, we + * have to check the process flags first, if we are already in a transaction + * or disk I/O during allocations is off, we need to fail the writepage and + * redirty the page. + * + * The bh->b_state's cannot know if any of the blocks or which block for that + * matter are dirty due to mmap writes, and therefore bh uptodate is only + * valid if the page itself isn't completely uptodate. */ - STATIC int -xfs_page_state_convert( - struct inode *inode, - struct page *page, - struct writeback_control *wbc, - int startio, - int unmapped) /* also implies page uptodate */ +xfs_vm_writepage( + struct page *page, + struct writeback_control *wbc) { + struct inode *inode = page->mapping->host; + int need_trans; + int delalloc, unmapped, unwritten; struct buffer_head *bh, *head; struct xfs_bmbt_irec imap; xfs_ioend_t *ioend = NULL, *iohead = NULL; loff_t offset; - unsigned long p_offset = 0; unsigned int type; __uint64_t end_offset; pgoff_t end_index, last_index; ssize_t size, len; int flags, err, imap_valid = 0, uptodate = 1; - int page_dirty, count = 0; - int trylock = 0; - int all_bh = unmapped; - - if (startio) { - if (wbc->sync_mode == WB_SYNC_NONE && wbc->nonblocking) - trylock |= BMAPI_TRYLOCK; + int count = 0; + int all_bh; + + trace_xfs_writepage(inode, page, 0); + + /* + * Refuse to write the page out if we are called from reclaim context. + * + * This is primarily to avoid stack overflows when called from deep + * used stacks in random callers for direct reclaim, but disabling + * reclaim for kswap is a nice side-effect as kswapd causes rather + * suboptimal I/O patters, too. + * + * This should really be done by the core VM, but until that happens + * filesystems like XFS, btrfs and ext4 have to take care of this + * by themselves. + */ + if (current->flags & PF_MEMALLOC) + goto out_fail; + + /* + * We need a transaction if: + * 1. There are delalloc buffers on the page + * 2. The page is uptodate and we have unmapped buffers + * 3. The page is uptodate and we have no buffers + * 4. There are unwritten buffers on the page + */ + if (!page_has_buffers(page)) { + unmapped = 1; + need_trans = 1; + } else { + xfs_count_page_state(page, &delalloc, &unmapped, &unwritten); + if (!PageUptodate(page)) + unmapped = 0; + need_trans = delalloc + unmapped + unwritten; } + /* + * If we need a transaction and the process flags say + * we are already in a transaction, or no IO is allowed + * then mark the page dirty again and leave the page + * as is. + */ + if (current_test_flags(PF_FSTRANS) && need_trans) + goto out_fail; + + /* + * Delay hooking up buffer heads until we have + * made our go/no-go decision. + */ + if (!page_has_buffers(page)) + create_empty_buffers(page, 1 << inode->i_blkbits, 0); + + /* + * VM calculation for nr_to_write seems off. Bump it way + * up, this gets simple streaming writes zippy again. + * To be reviewed again after Jens' writeback changes. + */ + wbc->nr_to_write *= 4; + /* Is this page beyond the end of the file? */ offset = i_size_read(inode); end_index = offset >> PAGE_CACHE_SHIFT; @@ -1077,53 +1118,27 @@ xfs_page_state_convert( if (page->index >= end_index) { if ((page->index >= end_index + 1) || !(i_size_read(inode) & (PAGE_CACHE_SIZE - 1))) { - if (startio) - unlock_page(page); + unlock_page(page); return 0; } } - /* - * page_dirty is initially a count of buffers on the page before - * EOF and is decremented as we move each into a cleanable state. - * - * Derivation: - * - * End offset is the highest offset that this page should represent. - * If we are on the last page, (end_offset & (PAGE_CACHE_SIZE - 1)) - * will evaluate non-zero and be less than PAGE_CACHE_SIZE and - * hence give us the correct page_dirty count. On any other page, - * it will be zero and in that case we need page_dirty to be the - * count of buffers on the page. - */ end_offset = min_t(unsigned long long, (xfs_off_t)(page->index + 1) << PAGE_CACHE_SHIFT, offset); len = 1 << inode->i_blkbits; - p_offset = min_t(unsigned long, end_offset & (PAGE_CACHE_SIZE - 1), - PAGE_CACHE_SIZE); - p_offset = p_offset ? roundup(p_offset, len) : PAGE_CACHE_SIZE; - page_dirty = p_offset / len; bh = head = page_buffers(page); offset = page_offset(page); flags = BMAPI_READ; type = IO_NEW; - /* TODO: cleanup count and page_dirty */ + all_bh = unmapped; do { if (offset >= end_offset) break; if (!buffer_uptodate(bh)) uptodate = 0; - if (!(PageUptodate(page) || buffer_uptodate(bh)) && !startio) { - /* - * the iomap is actually still valid, but the ioend - * isn't. shouldn't happen too often. - */ - imap_valid = 0; - continue; - } /* * A hole may still be marked uptodate because discard_buffer @@ -1150,7 +1165,7 @@ xfs_page_state_convert( */ if (buffer_unwritten(bh) || buffer_delay(bh) || ((buffer_uptodate(bh) || PageUptodate(page)) && - !buffer_mapped(bh) && (unmapped || startio))) { + !buffer_mapped(bh))) { int new_ioend = 0; /* @@ -1164,7 +1179,11 @@ xfs_page_state_convert( flags = BMAPI_WRITE | BMAPI_IGNSTATE; } else if (buffer_delay(bh)) { type = IO_DELAY; - flags = BMAPI_ALLOCATE | trylock; + flags = BMAPI_ALLOCATE; + + if (wbc->sync_mode == WB_SYNC_NONE && + wbc->nonblocking) + flags |= BMAPI_TRYLOCK; } else { type = IO_NEW; flags = BMAPI_WRITE | BMAPI_MMAP; @@ -1196,19 +1215,11 @@ xfs_page_state_convert( } if (imap_valid) { xfs_map_at_offset(inode, bh, &imap, offset); - if (startio) { - xfs_add_to_ioend(inode, bh, offset, - type, &ioend, - new_ioend); - } else { - set_buffer_dirty(bh); - unlock_buffer(bh); - mark_buffer_dirty(bh); - } - page_dirty--; + xfs_add_to_ioend(inode, bh, offset, type, + &ioend, new_ioend); count++; } - } else if (buffer_uptodate(bh) && startio) { + } else if (buffer_uptodate(bh)) { /* * we got here because the buffer is already mapped. * That means it must already have extents allocated @@ -1241,13 +1252,11 @@ xfs_page_state_convert( all_bh = 1; xfs_add_to_ioend(inode, bh, offset, type, &ioend, !imap_valid); - page_dirty--; count++; } else { imap_valid = 0; } - } else if ((buffer_uptodate(bh) || PageUptodate(page)) && - (unmapped || startio)) { + } else if (PageUptodate(page)) { imap_valid = 0; } @@ -1259,8 +1268,7 @@ xfs_page_state_convert( if (uptodate && bh == head) SetPageUptodate(page); - if (startio) - xfs_start_page_writeback(page, 1, count); + xfs_start_page_writeback(page, 1, count); if (ioend && imap_valid) { xfs_off_t end_index; @@ -1278,139 +1286,28 @@ xfs_page_state_convert( end_index = last_index; xfs_cluster_write(inode, page->index + 1, &imap, &ioend, - wbc, startio, all_bh, end_index); + wbc, all_bh, end_index); } if (iohead) xfs_submit_ioend(wbc, iohead); - return page_dirty; + return 0; error: if (iohead) xfs_cancel_ioend(iohead); - /* - * If it's delalloc and we have nowhere to put it, - * throw it away, unless the lower layers told - * us to try again. - */ - if (err != -EAGAIN) { - if (!unmapped) - xfs_aops_discard_page(page); - ClearPageUptodate(page); - } + if (!unmapped) + xfs_aops_discard_page(page); + ClearPageUptodate(page); + unlock_page(page); return err; -} - -/* - * writepage: Called from one of two places: - * - * 1. we are flushing a delalloc buffer head. - * - * 2. we are writing out a dirty page. Typically the page dirty - * state is cleared before we get here. In this case is it - * conceivable we have no buffer heads. - * - * For delalloc space on the page we need to allocate space and - * flush it. For unmapped buffer heads on the page we should - * allocate space if the page is uptodate. For any other dirty - * buffer heads on the page we should flush them. - * - * If we detect that a transaction would be required to flush - * the page, we have to check the process flags first, if we - * are already in a transaction or disk I/O during allocations - * is off, we need to fail the writepage and redirty the page. - */ - -STATIC int -xfs_vm_writepage( - struct page *page, - struct writeback_control *wbc) -{ - int error; - int need_trans; - int delalloc, unmapped, unwritten; - struct inode *inode = page->mapping->host; - - trace_xfs_writepage(inode, page, 0); - - /* - * Refuse to write the page out if we are called from reclaim context. - * - * This is primarily to avoid stack overflows when called from deep - * used stacks in random callers for direct reclaim, but disabling - * reclaim for kswap is a nice side-effect as kswapd causes rather - * suboptimal I/O patters, too. - * - * This should really be done by the core VM, but until that happens - * filesystems like XFS, btrfs and ext4 have to take care of this - * by themselves. - */ - if (current->flags & PF_MEMALLOC) - goto out_fail; - - /* - * We need a transaction if: - * 1. There are delalloc buffers on the page - * 2. The page is uptodate and we have unmapped buffers - * 3. The page is uptodate and we have no buffers - * 4. There are unwritten buffers on the page - */ - - if (!page_has_buffers(page)) { - unmapped = 1; - need_trans = 1; - } else { - xfs_count_page_state(page, &delalloc, &unmapped, &unwritten); - if (!PageUptodate(page)) - unmapped = 0; - need_trans = delalloc + unmapped + unwritten; - } - - /* - * If we need a transaction and the process flags say - * we are already in a transaction, or no IO is allowed - * then mark the page dirty again and leave the page - * as is. - */ - if (current_test_flags(PF_FSTRANS) && need_trans) - goto out_fail; - - /* - * Delay hooking up buffer heads until we have - * made our go/no-go decision. - */ - if (!page_has_buffers(page)) - create_empty_buffers(page, 1 << inode->i_blkbits, 0); - - - /* - * VM calculation for nr_to_write seems off. Bump it way - * up, this gets simple streaming writes zippy again. - * To be reviewed again after Jens' writeback changes. - */ - wbc->nr_to_write *= 4; - - /* - * Convert delayed allocate, unwritten or unmapped space - * to real space and flush out to disk. - */ - error = xfs_page_state_convert(inode, page, wbc, 1, unmapped); - if (error == -EAGAIN) - goto out_fail; - if (unlikely(error < 0)) - goto out_unlock; - - return 0; out_fail: redirty_page_for_writepage(wbc, page); unlock_page(page); return 0; -out_unlock: - unlock_page(page); - return error; } STATIC int @@ -1424,65 +1321,27 @@ xfs_vm_writepages( /* * Called to move a page into cleanable state - and from there - * to be released. Possibly the page is already clean. We always + * to be released. The page should already be clean. We always * have buffer heads in this call. * - * Returns 0 if the page is ok to release, 1 otherwise. - * - * Possible scenarios are: - * - * 1. We are being called to release a page which has been written - * to via regular I/O. buffer heads will be dirty and possibly - * delalloc. If no delalloc buffer heads in this case then we - * can just return zero. - * - * 2. We are called to release a page which has been written via - * mmap, all we need to do is ensure there is no delalloc - * state in the buffer heads, if not we can let the caller - * free them and we should come back later via writepage. + * Returns 1 if the page is ok to release, 0 otherwise. */ STATIC int xfs_vm_releasepage( struct page *page, gfp_t gfp_mask) { - struct inode *inode = page->mapping->host; - int dirty, delalloc, unmapped, unwritten; - struct writeback_control wbc = { - .sync_mode = WB_SYNC_ALL, - .nr_to_write = 1, - }; - - trace_xfs_releasepage(inode, page, 0); + int delalloc, unmapped, unwritten; - if (!page_has_buffers(page)) - return 0; + trace_xfs_releasepage(page->mapping->host, page, 0); xfs_count_page_state(page, &delalloc, &unmapped, &unwritten); - if (!delalloc && !unwritten) - goto free_buffers; - if (!(gfp_mask & __GFP_FS)) + if (WARN_ON(delalloc)) return 0; - - /* If we are already inside a transaction or the thread cannot - * do I/O, we cannot release this page. - */ - if (current_test_flags(PF_FSTRANS)) + if (WARN_ON(unwritten)) return 0; - /* - * Convert delalloc space to real space, do not flush the - * data out to disk, that will be done by the caller. - * Never need to allocate space here - we will always - * come back to writepage in that case. - */ - dirty = xfs_page_state_convert(inode, page, &wbc, 0, 0); - if (dirty == 0 && !unwritten) - goto free_buffers; - return 0; - -free_buffers: return try_to_free_buffers(page); } From BATV+3dae0f5530bf0d1cca01+2493+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 21 03:33:29 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-4.9 required=5.0 tests=BAYES_00,LOCAL_GNU_PATCH autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L8XSip113447 for ; Mon, 21 Jun 2010 03:33:28 -0500 X-ASG-Debug-ID: 1277109368-136f02160000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 9D1CF15113FF for ; Mon, 21 Jun 2010 01:36:08 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id 4rsK6OPCc4I2jG3m for ; Mon, 21 Jun 2010 01:36:08 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQcUC-0007d3-AY for xfs@oss.sgi.com; Mon, 21 Jun 2010 08:36:08 +0000 Message-Id: <20100621083608.249757129@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Mon, 21 Jun 2010 04:35:54 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH 11/12] xfs: remove xfs_iput Subject: [PATCH 11/12] xfs: remove xfs_iput References: <20100621083543.125860679@bombadil.infradead.org> Content-Disposition: inline; filename=xfs-remove-xfs_iput X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277109368 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean xfs_iput is just a small wrapper for xfs_iunlock + IRELE. Having this out of line wrapper means the trace events in those two can't track their caller properly. So just remove the wrapper and opencode the unlock + rele in the few callers. Signed-off-by: Christoph Hellwig Index: xfs/fs/xfs/xfs_iget.c =================================================================== --- xfs.orig/fs/xfs/xfs_iget.c 2010-06-19 23:06:59.269003778 +0200 +++ xfs/fs/xfs/xfs_iget.c 2010-06-19 23:08:14.611253952 +0200 @@ -418,23 +418,6 @@ out_error_or_again: } /* - * Decrement reference count of an inode structure and unlock it. - * - * ip -- the inode being released - * lock_flags -- this parameter indicates the inode's locks to be - * to be released. See the comment on xfs_iunlock() for a list - * of valid values. - */ -void -xfs_iput(xfs_inode_t *ip, - uint lock_flags) -{ - xfs_itrace_entry(ip); - xfs_iunlock(ip, lock_flags); - IRELE(ip); -} - -/* * This is called free all the memory associated with an inode. * It must free the inode itself and any buffers allocated for * if_extents/if_data and if_broot. It must also free the lock Index: xfs/fs/xfs/quota/xfs_qm.c =================================================================== --- xfs.orig/fs/xfs/quota/xfs_qm.c 2010-06-19 23:06:53.000000000 +0200 +++ xfs/fs/xfs/quota/xfs_qm.c 2010-06-19 23:08:14.612254022 +0200 @@ -1662,7 +1662,8 @@ xfs_qm_dqusage_adjust( * making us disable quotas for the file system. */ if ((error = xfs_qm_dqget_noattach(ip, &udqp, &gdqp))) { - xfs_iput(ip, XFS_ILOCK_EXCL); + xfs_iunlock(ip, XFS_ILOCK_EXCL); + IRELE(ip); *res = BULKSTAT_RV_GIVEUP; return error; } @@ -1675,7 +1676,8 @@ xfs_qm_dqusage_adjust( * Walk thru the extent list and count the realtime blocks. */ if ((error = xfs_qm_get_rtblks(ip, &rtblks))) { - xfs_iput(ip, XFS_ILOCK_EXCL); + xfs_iunlock(ip, XFS_ILOCK_EXCL); + IRELE(ip); if (udqp) xfs_qm_dqput(udqp); if (gdqp) Index: xfs/fs/xfs/quota/xfs_qm_syscalls.c =================================================================== --- xfs.orig/fs/xfs/quota/xfs_qm_syscalls.c 2010-06-19 23:06:53.000000000 +0200 +++ xfs/fs/xfs/quota/xfs_qm_syscalls.c 2010-06-19 23:08:14.613254161 +0200 @@ -861,8 +861,9 @@ xfs_dqrele_inode( xfs_qm_dqrele(ip->i_gdquot); ip->i_gdquot = NULL; } - xfs_iput(ip, XFS_ILOCK_EXCL); + xfs_iunlock(ip, XFS_ILOCK_EXCL); + IRELE(ip); return 0; } @@ -1129,7 +1130,8 @@ xfs_qm_internalqcheck_adjust( * of those now. */ if (! ipreleased) { - xfs_iput(ip, lock_flags); + xfs_iunlock(ip, lock_flags); + IRELE(ip); ipreleased = B_TRUE; goto again; } @@ -1146,7 +1148,8 @@ xfs_qm_internalqcheck_adjust( ASSERT(gd); xfs_qm_internalqcheck_dqadjust(ip, gd); } - xfs_iput(ip, lock_flags); + xfs_iunlock(ip, lock_flags); + IRELE(ip); *res = BULKSTAT_RV_DIDONE; return (0); } Index: xfs/fs/xfs/xfs_inode.h =================================================================== --- xfs.orig/fs/xfs/xfs_inode.h 2010-06-19 23:06:59.000000000 +0200 +++ xfs/fs/xfs/xfs_inode.h 2010-06-19 23:08:14.618253882 +0200 @@ -443,7 +443,6 @@ static inline void xfs_ifunlock(xfs_inod */ int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t, uint, uint, xfs_inode_t **); -void xfs_iput(xfs_inode_t *, uint); void xfs_ilock(xfs_inode_t *, uint); int xfs_ilock_nowait(xfs_inode_t *, uint); void xfs_iunlock(xfs_inode_t *, uint); Index: xfs/fs/xfs/xfs_inode_item.c =================================================================== --- xfs.orig/fs/xfs/xfs_inode_item.c 2010-06-19 23:06:49.000000000 +0200 +++ xfs/fs/xfs/xfs_inode_item.c 2010-06-19 23:08:14.623253952 +0200 @@ -660,8 +660,10 @@ xfs_inode_item_unlock( lock_flags = iip->ili_lock_flags; iip->ili_lock_flags = 0; - if (lock_flags) - xfs_iput(iip->ili_inode, lock_flags); + if (lock_flags) { + xfs_iunlock(iip->ili_inode, lock_flags); + IRELE(iip->ili_inode); + } } /* Index: xfs/fs/xfs/xfs_itable.c =================================================================== --- xfs.orig/fs/xfs/xfs_itable.c 2010-06-19 23:06:53.000000000 +0200 +++ xfs/fs/xfs/xfs_itable.c 2010-06-19 23:08:14.627253952 +0200 @@ -34,6 +34,7 @@ #include "xfs_itable.h" #include "xfs_error.h" #include "xfs_btree.h" +#include "xfs_trace.h" STATIC int xfs_internal_inum( @@ -139,7 +140,8 @@ xfs_bulkstat_one_int( buf->bs_blocks = dic->di_nblocks + ip->i_delayed_blks; break; } - xfs_iput(ip, XFS_ILOCK_SHARED); + xfs_iunlock(ip, XFS_ILOCK_SHARED); + IRELE(ip); error = formatter(buffer, ubsize, ubused, buf); From BATV+3dae0f5530bf0d1cca01+2493+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 21 03:33:29 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L8XS1O113454 for ; Mon, 21 Jun 2010 03:33:28 -0500 X-ASG-Debug-ID: 1277109613-62ff02c20000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 861821454F6C for ; Mon, 21 Jun 2010 01:40:13 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id LHKnTKKvHnVX4Hip for ; Mon, 21 Jun 2010 01:40:13 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQcUC-0007cV-4m for xfs@oss.sgi.com; Mon, 21 Jun 2010 08:36:08 +0000 Message-Id: <20100621083608.050065100@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Mon, 21 Jun 2010 04:35:53 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH 10/12] [PATCH] xfs: remove xfs_iput_new Subject: [PATCH 10/12] [PATCH] xfs: remove xfs_iput_new References: <20100621083543.125860679@bombadil.infradead.org> Content-Disposition: inline; filename=xfs-kill-xfs_iput_new X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277109613 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean We never get an i_mode of 0 or a locked VFS inode until we pass in the XFS_IGET_CREATE flag to xfs_iget, which makes xfs_iput_new equivalent to xfs_iput for the only caller. In addition to that xfs_nfs_get_inode does not even need to lock the inode given that the generation never changes for a life inode, so just pass a 0 lock_flags to xfs_iget and release the inode using IRELE in the error path. Signed-off-by: Christoph Hellwig Index: xfs/fs/xfs/linux-2.6/xfs_export.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_export.c 2010-06-19 23:06:53.086254161 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_export.c 2010-06-19 23:07:10.000000000 +0200 @@ -29,6 +29,7 @@ #include "xfs_bmap_btree.h" #include "xfs_inode.h" #include "xfs_inode_item.h" +#include "xfs_trace.h" /* * Note that we only accept fileids which are long enough rather than allow @@ -131,8 +132,7 @@ xfs_nfs_get_inode( * fine and not an indication of a corrupted filesystem as clients can * send invalid file handles and we have to handle it gracefully.. */ - error = xfs_iget(mp, NULL, ino, XFS_IGET_UNTRUSTED, - XFS_ILOCK_SHARED, &ip); + error = xfs_iget(mp, NULL, ino, XFS_IGET_UNTRUSTED, 0, &ip); if (error) { /* * EINVAL means the inode cluster doesn't exist anymore. @@ -147,11 +147,10 @@ xfs_nfs_get_inode( } if (ip->i_d.di_gen != generation) { - xfs_iput_new(ip, XFS_ILOCK_SHARED); + IRELE(ip); return ERR_PTR(-ENOENT); } - xfs_iunlock(ip, XFS_ILOCK_SHARED); return VFS_I(ip); } Index: xfs/fs/xfs/xfs_iget.c =================================================================== --- xfs.orig/fs/xfs/xfs_iget.c 2010-06-19 23:06:57.008263659 +0200 +++ xfs/fs/xfs/xfs_iget.c 2010-06-21 09:13:49.643254301 +0200 @@ -435,29 +435,6 @@ xfs_iput(xfs_inode_t *ip, } /* - * Special iput for brand-new inodes that are still locked - */ -void -xfs_iput_new( - xfs_inode_t *ip, - uint lock_flags) -{ - struct inode *inode = VFS_I(ip); - - xfs_itrace_entry(ip); - - if ((ip->i_d.di_mode == 0)) { - ASSERT(!xfs_iflags_test(ip, XFS_IRECLAIMABLE)); - make_bad_inode(inode); - } - if (inode->i_state & I_NEW) - unlock_new_inode(inode); - if (lock_flags) - xfs_iunlock(ip, lock_flags); - IRELE(ip); -} - -/* * This is called free all the memory associated with an inode. * It must free the inode itself and any buffers allocated for * if_extents/if_data and if_broot. It must also free the lock Index: xfs/fs/xfs/xfs_inode.h =================================================================== --- xfs.orig/fs/xfs/xfs_inode.h 2010-06-19 23:06:53.112024311 +0200 +++ xfs/fs/xfs/xfs_inode.h 2010-06-21 09:13:49.669254301 +0200 @@ -444,7 +444,6 @@ static inline void xfs_ifunlock(xfs_inod int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t, uint, uint, xfs_inode_t **); void xfs_iput(xfs_inode_t *, uint); -void xfs_iput_new(xfs_inode_t *, uint); void xfs_ilock(xfs_inode_t *, uint); int xfs_ilock_nowait(xfs_inode_t *, uint); void xfs_iunlock(xfs_inode_t *, uint); From BATV+3dae0f5530bf0d1cca01+2493+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 21 03:33:28 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L8XSMO113448 for ; Mon, 21 Jun 2010 03:33:28 -0500 X-ASG-Debug-ID: 1277109612-62cc02ea0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 5A5251453C5D for ; Mon, 21 Jun 2010 01:40:13 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id WwwhQRUJjRLhMpIC for ; Mon, 21 Jun 2010 01:40:13 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQcUB-0007bz-Vf for xfs@oss.sgi.com; Mon, 21 Jun 2010 08:36:08 +0000 Message-Id: <20100621083607.851430261@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Mon, 21 Jun 2010 04:35:52 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH 09/12] xfs: some iget tracing cleanups / fixes Subject: [PATCH 09/12] xfs: some iget tracing cleanups / fixes References: <20100621083543.125860679@bombadil.infradead.org> Content-Disposition: inline; filename=xfs-cleanup-iget-tracing X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277109613 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean The xfs_iget_alloc/found tracepoints are a bit misnamed and misplaced. Rename them to xfs_iget_hit/xfs_iget_miss and move them to the beggining of the xfs_iget_cache_hit/miss functions. Add a new xfs_iget_reclaim_fail tracepoint for the case where we fail to re-initialize a VFS inode, and add a second instance of the xfs_iget_skip tracepoint for the case of a failed igrab() call. Signed-off-by: Christoph Hellwig Index: xfs/fs/xfs/linux-2.6/xfs_trace.h =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_trace.h 2010-06-19 10:42:37.374266953 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_trace.h 2010-06-19 14:37:04.680004137 +0200 @@ -558,8 +558,9 @@ DEFINE_EVENT(xfs_iget_class, name, \ TP_ARGS(ip)) DEFINE_IGET_EVENT(xfs_iget_skip); DEFINE_IGET_EVENT(xfs_iget_reclaim); -DEFINE_IGET_EVENT(xfs_iget_found); -DEFINE_IGET_EVENT(xfs_iget_alloc); +DEFINE_IGET_EVENT(xfs_iget_reclaim_fail); +DEFINE_IGET_EVENT(xfs_iget_hit); +DEFINE_IGET_EVENT(xfs_iget_miss); DECLARE_EVENT_CLASS(xfs_inode_class, TP_PROTO(struct xfs_inode *ip, unsigned long caller_ip), Index: xfs/fs/xfs/xfs_iget.c =================================================================== --- xfs.orig/fs/xfs/xfs_iget.c 2010-06-19 10:44:00.955254311 +0200 +++ xfs/fs/xfs/xfs_iget.c 2010-06-19 10:54:39.000000000 +0200 @@ -208,7 +208,7 @@ xfs_iget_cache_hit( ip->i_flags &= ~XFS_INEW; ip->i_flags |= XFS_IRECLAIMABLE; __xfs_inode_set_reclaim_tag(pag, ip); - trace_xfs_iget_reclaim(ip); + trace_xfs_iget_reclaim_fail(ip); goto out_error; } @@ -223,6 +223,7 @@ xfs_iget_cache_hit( } else { /* If the VFS inode is being torn down, pause and try again. */ if (!igrab(inode)) { + trace_xfs_iget_skip(ip); error = EAGAIN; goto out_error; } @@ -230,6 +231,7 @@ xfs_iget_cache_hit( /* We've got a live one. */ spin_unlock(&ip->i_flags_lock); read_unlock(&pag->pag_ici_lock); + trace_xfs_iget_hit(ip); } if (lock_flags != 0) @@ -238,7 +240,6 @@ xfs_iget_cache_hit( xfs_iflags_clear(ip, XFS_ISTALE); XFS_STATS_INC(xs_ig_found); - trace_xfs_iget_found(ip); return 0; out_error: @@ -271,7 +272,7 @@ xfs_iget_cache_miss( if (error) goto out_destroy; - xfs_itrace_entry(ip); + trace_xfs_iget_miss(ip); if ((ip->i_d.di_mode == 0) && !(flags & XFS_IGET_CREATE)) { error = ENOENT; @@ -317,7 +318,6 @@ xfs_iget_cache_miss( write_unlock(&pag->pag_ici_lock); radix_tree_preload_end(); - trace_xfs_iget_alloc(ip); *ipp = ip; return 0; From BATV+3dae0f5530bf0d1cca01+2493+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 21 03:33:28 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=unavailable version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L8XSDB113446 for ; Mon, 21 Jun 2010 03:33:28 -0500 X-ASG-Debug-ID: 1277109612-62dc03010000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 3696514515CB for ; Mon, 21 Jun 2010 01:40:12 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id d3oTnCHCSDde2UmD for ; Mon, 21 Jun 2010 01:40:12 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQcUB-0007bH-P7 for xfs@oss.sgi.com; Mon, 21 Jun 2010 08:36:07 +0000 Message-Id: <20100621083607.672484712@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Mon, 21 Jun 2010 04:35:51 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH 08/12] xfs: do not use emums for flags used in tracing Subject: [PATCH 08/12] xfs: do not use emums for flags used in tracing References: <20100621083543.125860679@bombadil.infradead.org> Content-Disposition: inline; filename=xfs-tracing-doesnt-like-enums X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277109613 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean The tracing code can't print flags defined as enums. Most flags that we want to print are defines as macros already, but move the few remaining ones over to make the trace output more useful. Signed-off-by: Christoph Hellwig Index: xfs/fs/xfs/xfs_alloc.h =================================================================== --- xfs.orig/fs/xfs/xfs_alloc.h 2010-06-16 14:32:30.000000000 +0200 +++ xfs/fs/xfs/xfs_alloc.h 2010-06-16 14:41:06.701005358 +0200 @@ -27,16 +27,16 @@ struct xfs_busy_extent; /* * Freespace allocation types. Argument to xfs_alloc_[v]extent. */ -typedef enum xfs_alloctype -{ - XFS_ALLOCTYPE_ANY_AG, /* allocate anywhere, use rotor */ - XFS_ALLOCTYPE_FIRST_AG, /* ... start at ag 0 */ - XFS_ALLOCTYPE_START_AG, /* anywhere, start in this a.g. */ - XFS_ALLOCTYPE_THIS_AG, /* anywhere in this a.g. */ - XFS_ALLOCTYPE_START_BNO, /* near this block else anywhere */ - XFS_ALLOCTYPE_NEAR_BNO, /* in this a.g. and near this block */ - XFS_ALLOCTYPE_THIS_BNO /* at exactly this block */ -} xfs_alloctype_t; +#define XFS_ALLOCTYPE_ANY_AG 0x01 /* allocate anywhere, use rotor */ +#define XFS_ALLOCTYPE_FIRST_AG 0x02 /* ... start at ag 0 */ +#define XFS_ALLOCTYPE_START_AG 0x04 /* anywhere, start in this a.g. */ +#define XFS_ALLOCTYPE_THIS_AG 0x08 /* anywhere in this a.g. */ +#define XFS_ALLOCTYPE_START_BNO 0x10 /* near this block else anywhere */ +#define XFS_ALLOCTYPE_NEAR_BNO 0x20 /* in this a.g. and near this block */ +#define XFS_ALLOCTYPE_THIS_BNO 0x40 /* at exactly this block */ + +/* this should become an enum again when the tracing code is fixed */ +typedef unsigned int xfs_alloctype_t; #define XFS_ALLOC_TYPES \ { XFS_ALLOCTYPE_ANY_AG, "ANY_AG" }, \ Index: xfs/fs/xfs/xfs_iomap.h =================================================================== --- xfs.orig/fs/xfs/xfs_iomap.h 2010-06-16 14:33:09.000000000 +0200 +++ xfs/fs/xfs/xfs_iomap.h 2010-06-16 14:39:50.906009896 +0200 @@ -18,16 +18,16 @@ #ifndef __XFS_IOMAP_H__ #define __XFS_IOMAP_H__ -typedef enum { - /* base extent manipulation calls */ - BMAPI_READ = (1 << 0), /* read extents */ - BMAPI_WRITE = (1 << 1), /* create extents */ - BMAPI_ALLOCATE = (1 << 2), /* delayed allocate to real extents */ - /* modifiers */ - BMAPI_IGNSTATE = (1 << 4), /* ignore unwritten state on read */ - BMAPI_DIRECT = (1 << 5), /* direct instead of buffered write */ - BMAPI_TRYLOCK = (1 << 7), /* non-blocking request */ -} bmapi_flags_t; +/* base extent manipulation calls */ +#define BMAPI_READ (1 << 0) /* read extents */ +#define BMAPI_WRITE (1 << 1) /* create extents */ +#define BMAPI_ALLOCATE (1 << 2) /* delayed allocate to real extents */ + +/* modifiers */ +#define BMAPI_IGNSTATE (1 << 4) /* ignore unwritten state on read */ +#define BMAPI_DIRECT (1 << 5) /* direct instead of buffered write */ +#define BMAPI_MMA (1 << 6) /* allocate for mmap write */ +#define BMAPI_TRYLOCK (1 << 7) /* non-blocking request */ #define BMAPI_FLAGS \ { BMAPI_READ, "READ" }, \ Index: xfs/fs/xfs/linux-2.6/xfs_buf.h =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_buf.h 2010-06-16 14:41:35.278003751 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_buf.h 2010-06-18 09:57:22.366004277 +0200 @@ -44,57 +44,57 @@ typedef enum { XBRW_ZERO = 3, /* Zero target memory */ } xfs_buf_rw_t; -typedef enum { - XBF_READ = (1 << 0), /* buffer intended for reading from device */ - XBF_WRITE = (1 << 1), /* buffer intended for writing to device */ - XBF_MAPPED = (1 << 2), /* buffer mapped (b_addr valid) */ - XBF_ASYNC = (1 << 4), /* initiator will not wait for completion */ - XBF_DONE = (1 << 5), /* all pages in the buffer uptodate */ - XBF_DELWRI = (1 << 6), /* buffer has dirty pages */ - XBF_STALE = (1 << 7), /* buffer has been staled, do not find it */ - XBF_FS_MANAGED = (1 << 8), /* filesystem controls freeing memory */ - XBF_ORDERED = (1 << 11), /* use ordered writes */ - XBF_READ_AHEAD = (1 << 12), /* asynchronous read-ahead */ - XBF_LOG_BUFFER = (1 << 13), /* this is a buffer used for the log */ - - /* flags used only as arguments to access routines */ - XBF_LOCK = (1 << 14), /* lock requested */ - XBF_TRYLOCK = (1 << 15), /* lock requested, but do not wait */ - XBF_DONT_BLOCK = (1 << 16), /* do not block in current thread */ - - /* flags used only internally */ - _XBF_PAGE_CACHE = (1 << 17),/* backed by pagecache */ - _XBF_PAGES = (1 << 18), /* backed by refcounted pages */ - _XBF_RUN_QUEUES = (1 << 19),/* run block device task queue */ - _XBF_DELWRI_Q = (1 << 21), /* buffer on delwri queue */ - - /* - * Special flag for supporting metadata blocks smaller than a FSB. - * - * In this case we can have multiple xfs_buf_t on a single page and - * need to lock out concurrent xfs_buf_t readers as they only - * serialise access to the buffer. - * - * If the FSB size >= PAGE_CACHE_SIZE case, we have no serialisation - * between reads of the page. Hence we can have one thread read the - * page and modify it, but then race with another thread that thinks - * the page is not up-to-date and hence reads it again. - * - * The result is that the first modifcation to the page is lost. - * This sort of AGF/AGI reading race can happen when unlinking inodes - * that require truncation and results in the AGI unlinked list - * modifications being lost. - */ - _XBF_PAGE_LOCKED = (1 << 22), - - /* - * If we try a barrier write, but it fails we have to communicate - * this to the upper layers. Unfortunately b_error gets overwritten - * when the buffer is re-issued so we have to add another flag to - * keep this information. - */ - _XFS_BARRIER_FAILED = (1 << 23), -} xfs_buf_flags_t; +#define XBF_READ (1 << 0) /* buffer intended for reading from device */ +#define XBF_WRITE (1 << 1) /* buffer intended for writing to device */ +#define XBF_MAPPED (1 << 2) /* buffer mapped (b_addr valid) */ +#define XBF_ASYNC (1 << 4) /* initiator will not wait for completion */ +#define XBF_DONE (1 << 5) /* all pages in the buffer uptodate */ +#define XBF_DELWRI (1 << 6) /* buffer has dirty pages */ +#define XBF_STALE (1 << 7) /* buffer has been staled, do not find it */ +#define XBF_FS_MANAGED (1 << 8) /* filesystem controls freeing memory */ +#define XBF_ORDERED (1 << 11)/* use ordered writes */ +#define XBF_READ_AHEAD (1 << 12)/* asynchronous read-ahead */ +#define XBF_LOG_BUFFER (1 << 13)/* this is a buffer used for the log */ + +/* flags used only as arguments to access routines */ +#define XBF_LOCK (1 << 14)/* lock requested */ +#define XBF_TRYLOCK (1 << 15)/* lock requested, but do not wait */ +#define XBF_DONT_BLOCK (1 << 16)/* do not block in current thread */ + +/* flags used only internally */ +#define _XBF_PAGE_CACHE (1 << 17)/* backed by pagecache */ +#define _XBF_PAGES (1 << 18)/* backed by refcounted pages */ +#define _XBF_RUN_QUEUES (1 << 19)/* run block device task queue */ +#define _XBF_DELWRI_Q (1 << 21)/* buffer on delwri queue */ + +/* + * Special flag for supporting metadata blocks smaller than a FSB. + * + * In this case we can have multiple xfs_buf_t on a single page and + * need to lock out concurrent xfs_buf_t readers as they only + * serialise access to the buffer. + * + * If the FSB size >= PAGE_CACHE_SIZE case, we have no serialisation + * between reads of the page. Hence we can have one thread read the + * page and modify it, but then race with another thread that thinks + * the page is not up-to-date and hence reads it again. + * + * The result is that the first modifcation to the page is lost. + * This sort of AGF/AGI reading race can happen when unlinking inodes + * that require truncation and results in the AGI unlinked list + * modifications being lost. + */ +#define _XBF_PAGE_LOCKED (1 << 22) + +/* + * If we try a barrier write, but it fails we have to communicate + * this to the upper layers. Unfortunately b_error gets overwritten + * when the buffer is re-issued so we have to add another flag to + * keep this information. + */ +#define _XFS_BARRIER_FAILED (1 << 23) + +typedef unsigned int xfs_buf_flags_t; #define XFS_BUF_FLAGS \ { XBF_READ, "READ" }, \ From BATV+3dae0f5530bf0d1cca01+2493+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 21 03:33:29 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L8XRxH113443 for ; Mon, 21 Jun 2010 03:33:28 -0500 X-ASG-Debug-ID: 1277109612-630002ef0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 9696014515CB for ; Mon, 21 Jun 2010 01:40:12 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id iCaBKMncE5uFZlpq for ; Mon, 21 Jun 2010 01:40:12 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQcUB-0007ZC-2N for xfs@oss.sgi.com; Mon, 21 Jun 2010 08:36:07 +0000 Message-Id: <20100621083606.962351649@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Mon, 21 Jun 2010 04:35:47 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH 04/12] xfs: simplify xfs_vm_writepage Subject: [PATCH 04/12] xfs: simplify xfs_vm_writepage References: <20100621083543.125860679@bombadil.infradead.org> Content-Disposition: inline; filename=xfs-simplify-writepage X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277109612 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean The writepage implementation in XFS still tries to deal with dirty but unmapped buffers which used to caused by writes through shared mmaps. Since the introduction of ->page_mkwrite these can't happen anymore, so remove the code dealing with them. Note that the all_bh variable which causes us to start I/O on all buffers on the pages was controlled by the count of unmapped buffers, which also included those not actually dirty. It's now unconditionally initialized to 0 but set to 1 for the case of small file size extensions. It probably can be removed entirely, but that's left for another patch. Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner Index: xfs/fs/xfs/linux-2.6/xfs_aops.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_aops.c 2010-06-11 09:27:27.602003840 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_aops.c 2010-06-11 09:28:45.408003978 +0200 @@ -85,18 +85,15 @@ void xfs_count_page_state( struct page *page, int *delalloc, - int *unmapped, int *unwritten) { struct buffer_head *bh, *head; - *delalloc = *unmapped = *unwritten = 0; + *delalloc = *unwritten = 0; bh = head = page_buffers(page); do { - if (buffer_uptodate(bh) && !buffer_mapped(bh)) - (*unmapped) = 1; - else if (buffer_unwritten(bh)) + if (buffer_unwritten(bh)) (*unwritten) = 1; else if (buffer_delay(bh)) (*delalloc) = 1; @@ -607,31 +604,30 @@ xfs_map_at_offset( STATIC unsigned int xfs_probe_page( struct page *page, - unsigned int pg_offset, - int mapped) + unsigned int pg_offset) { + struct buffer_head *bh, *head; int ret = 0; if (PageWriteback(page)) return 0; + if (!PageDirty(page)) + return 0; + if (!page->mapping) + return 0; + if (!page_has_buffers(page)) + return 0; - if (page->mapping && PageDirty(page)) { - if (page_has_buffers(page)) { - struct buffer_head *bh, *head; - - bh = head = page_buffers(page); - do { - if (!buffer_uptodate(bh)) - break; - if (mapped != buffer_mapped(bh)) - break; - ret += bh->b_size; - if (ret >= pg_offset) - break; - } while ((bh = bh->b_this_page) != head); - } else - ret = mapped ? 0 : PAGE_CACHE_SIZE; - } + bh = head = page_buffers(page); + do { + if (!buffer_uptodate(bh)) + break; + if (!buffer_mapped(bh)) + break; + ret += bh->b_size; + if (ret >= pg_offset) + break; + } while ((bh = bh->b_this_page) != head); return ret; } @@ -641,8 +637,7 @@ xfs_probe_cluster( struct inode *inode, struct page *startpage, struct buffer_head *bh, - struct buffer_head *head, - int mapped) + struct buffer_head *head) { struct pagevec pvec; pgoff_t tindex, tlast, tloff; @@ -651,7 +646,7 @@ xfs_probe_cluster( /* First sum forwards in this page */ do { - if (!buffer_uptodate(bh) || (mapped != buffer_mapped(bh))) + if (!buffer_uptodate(bh) || !buffer_mapped(bh)) return total; total += bh->b_size; } while ((bh = bh->b_this_page) != head); @@ -685,7 +680,7 @@ xfs_probe_cluster( pg_offset = PAGE_CACHE_SIZE; if (page->index == tindex && trylock_page(page)) { - pg_len = xfs_probe_page(page, pg_offset, mapped); + pg_len = xfs_probe_page(page, pg_offset); unlock_page(page); } @@ -1021,18 +1016,12 @@ out_invalidate: * For delalloc space on the page we need to allocate space and flush it. * For unwritten space on the page we need to start the conversion to * regular allocated space. - * For unmapped buffer heads on the page we should allocate space if the - * page is uptodate. * For any other dirty buffer heads on the page we should flush them. * * If we detect that a transaction would be required to flush the page, we * have to check the process flags first, if we are already in a transaction * or disk I/O during allocations is off, we need to fail the writepage and * redirty the page. - * - * The bh->b_state's cannot know if any of the blocks or which block for that - * matter are dirty due to mmap writes, and therefore bh uptodate is only - * valid if the page itself isn't completely uptodate. */ STATIC int xfs_vm_writepage( @@ -1040,8 +1029,7 @@ xfs_vm_writepage( struct writeback_control *wbc) { struct inode *inode = page->mapping->host; - int need_trans; - int delalloc, unmapped, unwritten; + int delalloc, unwritten; struct buffer_head *bh, *head; struct xfs_bmbt_irec imap; xfs_ioend_t *ioend = NULL, *iohead = NULL; @@ -1052,10 +1040,12 @@ xfs_vm_writepage( ssize_t size, len; int flags, err, imap_valid = 0, uptodate = 1; int count = 0; - int all_bh; + int all_bh = 0; trace_xfs_writepage(inode, page, 0); + ASSERT(page_has_buffers(page)); + /* * Refuse to write the page out if we are called from reclaim context. * @@ -1072,39 +1062,18 @@ xfs_vm_writepage( goto out_fail; /* - * We need a transaction if: - * 1. There are delalloc buffers on the page - * 2. The page is uptodate and we have unmapped buffers - * 3. The page is uptodate and we have no buffers - * 4. There are unwritten buffers on the page - */ - if (!page_has_buffers(page)) { - unmapped = 1; - need_trans = 1; - } else { - xfs_count_page_state(page, &delalloc, &unmapped, &unwritten); - if (!PageUptodate(page)) - unmapped = 0; - need_trans = delalloc + unmapped + unwritten; - } - - /* - * If we need a transaction and the process flags say - * we are already in a transaction, or no IO is allowed - * then mark the page dirty again and leave the page - * as is. + * We need a transaction if there are delalloc or unwritten buffers + * on the page. + * + * If we need a transaction and the process flags say we are already + * in a transaction, or no IO is allowed then mark the page dirty + * again and leave the page as is. */ - if (current_test_flags(PF_FSTRANS) && need_trans) + xfs_count_page_state(page, &delalloc, &unwritten); + if ((current->flags & PF_FSTRANS) && (delalloc || unwritten)) goto out_fail; /* - * Delay hooking up buffer heads until we have - * made our go/no-go decision. - */ - if (!page_has_buffers(page)) - create_empty_buffers(page, 1 << inode->i_blkbits, 0); - - /* * VM calculation for nr_to_write seems off. Bump it way * up, this gets simple streaming writes zippy again. * To be reviewed again after Jens' writeback changes. @@ -1124,7 +1093,8 @@ xfs_vm_writepage( } end_offset = min_t(unsigned long long, - (xfs_off_t)(page->index + 1) << PAGE_CACHE_SHIFT, offset); + (xfs_off_t)(page->index + 1) << PAGE_CACHE_SHIFT, + offset); len = 1 << inode->i_blkbits; bh = head = page_buffers(page); @@ -1132,8 +1102,6 @@ xfs_vm_writepage( flags = BMAPI_READ; type = IO_NEW; - all_bh = unmapped; - do { if (offset >= end_offset) break; @@ -1153,19 +1121,7 @@ xfs_vm_writepage( if (imap_valid) imap_valid = xfs_imap_valid(inode, &imap, offset); - /* - * First case, map an unwritten extent and prepare for - * extent state conversion transaction on completion. - * - * Second case, allocate space for a delalloc buffer. - * We can return EAGAIN here in the release page case. - * - * Third case, an unmapped buffer was found, and we are - * in a path where we need to write the whole page out. - */ - if (buffer_unwritten(bh) || buffer_delay(bh) || - ((buffer_uptodate(bh) || PageUptodate(page)) && - !buffer_mapped(bh))) { + if (buffer_unwritten(bh) || buffer_delay(bh)) { int new_ioend = 0; /* @@ -1184,14 +1140,11 @@ xfs_vm_writepage( if (wbc->sync_mode == WB_SYNC_NONE && wbc->nonblocking) flags |= BMAPI_TRYLOCK; - } else { - type = IO_NEW; - flags = BMAPI_WRITE | BMAPI_MMAP; } if (!imap_valid) { /* - * if we didn't have a valid mapping then we + * If we didn't have a valid mapping then we * need to ensure that we put the new mapping * in a new ioend structure. This needs to be * done to ensure that the ioends correctly @@ -1199,14 +1152,7 @@ xfs_vm_writepage( * for unwritten extent conversion. */ new_ioend = 1; - if (type == IO_NEW) { - size = xfs_probe_cluster(inode, - page, bh, head, 0); - } else { - size = len; - } - - err = xfs_map_blocks(inode, offset, size, + err = xfs_map_blocks(inode, offset, len, &imap, flags); if (err) goto error; @@ -1227,8 +1173,7 @@ xfs_vm_writepage( */ if (!imap_valid || flags != BMAPI_READ) { flags = BMAPI_READ; - size = xfs_probe_cluster(inode, page, bh, - head, 1); + size = xfs_probe_cluster(inode, page, bh, head); err = xfs_map_blocks(inode, offset, size, &imap, flags); if (err) @@ -1247,7 +1192,6 @@ xfs_vm_writepage( */ type = IO_NEW; if (trylock_buffer(bh)) { - ASSERT(buffer_mapped(bh)); if (imap_valid) all_bh = 1; xfs_add_to_ioend(inode, bh, offset, type, @@ -1257,6 +1201,7 @@ xfs_vm_writepage( imap_valid = 0; } } else if (PageUptodate(page)) { + ASSERT(buffer_mapped(bh)); imap_valid = 0; } @@ -1298,8 +1243,7 @@ error: if (iohead) xfs_cancel_ioend(iohead); - if (!unmapped) - xfs_aops_discard_page(page); + xfs_aops_discard_page(page); ClearPageUptodate(page); unlock_page(page); return err; @@ -1331,11 +1275,11 @@ xfs_vm_releasepage( struct page *page, gfp_t gfp_mask) { - int delalloc, unmapped, unwritten; + int delalloc, unwritten; trace_xfs_releasepage(page->mapping->host, page, 0); - xfs_count_page_state(page, &delalloc, &unmapped, &unwritten); + xfs_count_page_state(page, &delalloc, &unwritten); if (WARN_ON(delalloc)) return 0; Index: xfs/fs/xfs/linux-2.6/xfs_aops.h =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_aops.h 2010-02-13 22:45:45.000000000 +0100 +++ xfs/fs/xfs/linux-2.6/xfs_aops.h 2010-06-11 09:27:44.075004398 +0200 @@ -45,6 +45,6 @@ extern int xfs_get_blocks(struct inode * extern void xfs_ioend_init(void); extern void xfs_ioend_wait(struct xfs_inode *); -extern void xfs_count_page_state(struct page *, int *, int *, int *); +extern void xfs_count_page_state(struct page *, int *, int *); #endif /* __XFS_AOPS_H__ */ Index: xfs/fs/xfs/linux-2.6/xfs_trace.h =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_trace.h 2010-06-04 15:12:52.000000000 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_trace.h 2010-06-11 09:27:44.083003979 +0200 @@ -829,33 +829,29 @@ DECLARE_EVENT_CLASS(xfs_page_class, __field(loff_t, size) __field(unsigned long, offset) __field(int, delalloc) - __field(int, unmapped) __field(int, unwritten) ), TP_fast_assign( - int delalloc = -1, unmapped = -1, unwritten = -1; + int delalloc = -1, unwritten = -1; if (page_has_buffers(page)) - xfs_count_page_state(page, &delalloc, - &unmapped, &unwritten); + xfs_count_page_state(page, &delalloc, &unwritten); __entry->dev = inode->i_sb->s_dev; __entry->ino = XFS_I(inode)->i_ino; __entry->pgoff = page_offset(page); __entry->size = i_size_read(inode); __entry->offset = off; __entry->delalloc = delalloc; - __entry->unmapped = unmapped; __entry->unwritten = unwritten; ), TP_printk("dev %d:%d ino 0x%llx pgoff 0x%lx size 0x%llx offset %lx " - "delalloc %d unmapped %d unwritten %d", + "delalloc %d unwritten %d", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino, __entry->pgoff, __entry->size, __entry->offset, __entry->delalloc, - __entry->unmapped, __entry->unwritten) ) From BATV+3dae0f5530bf0d1cca01+2493+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 21 03:33:29 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L8XR9a113440 for ; Mon, 21 Jun 2010 03:33:28 -0500 X-ASG-Debug-ID: 1277109367-6ba302f50000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id DEE46267830 for ; Mon, 21 Jun 2010 01:36:07 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id dvQy7KrjjRNjUHBN for ; Mon, 21 Jun 2010 01:36:07 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQcUB-0007al-JB for xfs@oss.sgi.com; Mon, 21 Jun 2010 08:36:07 +0000 Message-Id: <20100621083607.476361881@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Mon, 21 Jun 2010 04:35:50 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH 07/12] xfs: remove explicit xfs_sync_data/xfs_sync_attr calls on umount Subject: [PATCH 07/12] xfs: remove explicit xfs_sync_data/xfs_sync_attr calls on umount References: <20100621083543.125860679@bombadil.infradead.org> Content-Disposition: inline; filename=xfs-remove-sync-on-umount X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277109367 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On the final put of a superblock the VFS already calls sync_filesystem for us to write out all data and wait for it. No need to start another asynchronous writenack inside ->put_super. Signed-off-by: Christoph Hellwig Index: xfs/fs/xfs/linux-2.6/xfs_super.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_super.c 2010-06-19 11:54:54.072006021 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_super.c 2010-06-19 12:26:48.388003856 +0200 @@ -1160,18 +1160,6 @@ xfs_fs_put_super( xfs_syncd_stop(mp); - if (!(sb->s_flags & MS_RDONLY)) { - /* - * XXX(hch): this should be SYNC_WAIT. - * - * Or more likely not needed at all because the VFS is already - * calling ->sync_fs after shutting down all filestem - * operations and just before calling ->put_super. - */ - xfs_sync_data(mp, 0); - xfs_sync_attr(mp, 0); - } - /* * Blow away any referenced inode in the filestreams cache. * This can and will cause log traffic as inodes go inactive Index: xfs/fs/xfs/linux-2.6/xfs_sync.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_sync.c 2010-06-19 10:41:57.626004207 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_sync.c 2010-06-19 12:26:48.389003298 +0200 @@ -274,7 +274,7 @@ xfs_sync_inode_attr( /* * Write out pagecache data for the whole filesystem. */ -int +STATIC int xfs_sync_data( struct xfs_mount *mp, int flags) @@ -295,7 +295,7 @@ xfs_sync_data( /* * Write out inode metadata (attributes) for the whole filesystem. */ -int +STATIC int xfs_sync_attr( struct xfs_mount *mp, int flags) Index: xfs/fs/xfs/linux-2.6/xfs_sync.h =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_sync.h 2010-06-19 10:41:57.647253683 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_sync.h 2010-06-19 12:26:48.391003717 +0200 @@ -35,9 +35,6 @@ typedef struct xfs_sync_work { int xfs_syncd_init(struct xfs_mount *mp); void xfs_syncd_stop(struct xfs_mount *mp); -int xfs_sync_attr(struct xfs_mount *mp, int flags); -int xfs_sync_data(struct xfs_mount *mp, int flags); - int xfs_quiesce_data(struct xfs_mount *mp); void xfs_quiesce_attr(struct xfs_mount *mp); From BATV+3dae0f5530bf0d1cca01+2493+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 21 03:33:29 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-4.9 required=5.0 tests=BAYES_00,LOCAL_GNU_PATCH autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L8XQ3c113430 for ; Mon, 21 Jun 2010 03:33:29 -0500 X-ASG-Debug-ID: 1277109366-77df02210000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id CC5A7267830 for ; Mon, 21 Jun 2010 01:36:06 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id idZcUunGjq3EI5EB for ; Mon, 21 Jun 2010 01:36:06 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQcUA-0007Xd-G0 for xfs@oss.sgi.com; Mon, 21 Jun 2010 08:36:06 +0000 Message-Id: <20100621083606.399435078@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Mon, 21 Jun 2010 04:35:44 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH 01/12] [PATCH] xfs: avoid synchronous transaction in xfs_fs_write_inode Subject: [PATCH 01/12] [PATCH] xfs: avoid synchronous transaction in xfs_fs_write_inode References: <20100621083543.125860679@bombadil.infradead.org> Content-Disposition: inline; filename=xfs-optimize-write_inode X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277109366 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean We already rely on the fact that the sync code will cause a synchronous log force later on (currently via xfs_fs_sync_fs -> xfs_quiesce_data -> xfs_sync_data), so no need to do this here. This allows us to avoid a lot of synchronous log forces during sync, which pays of especially with delayed logging enabled. Some compilebench numbers that show this: xfs (delayed logging, 256k logbufs) =================================== intial create 25.94 MB/s 25.75 MB/s 25.64 MB/s create 8.54 MB/s 9.12 MB/s 9.15 MB/s patch 2.47 MB/s 2.47 MB/s 3.17 MB/s compile 29.65 MB/s 30.51 MB/s 27.33 MB/s clean 90.92 MB/s 98.83 MB/s 128.87 MB/s read tree 11.90 MB/s 11.84 MB/s 8.56 MB/s read compiled 28.75 MB/s 29.96 MB/s 24.25 MB/s delete tree 8.39 seconds 8.12 seconds 8.46 seconds delete compiled 8.35 seconds 8.44 seconds 5.11 seconds stat tree 6.03 seconds 5.59 seconds 5.19 seconds stat compiled tree 9.00 seconds 9.52 seconds 8.49 seconds xfs + write_inode log_force removal =================================== intial create 25.87 MB/s 25.76 MB/s 25.87 MB/s create 15.18 MB/s 14.80 MB/s 14.94 MB/s patch 3.13 MB/s 3.14 MB/s 3.11 MB/s compile 36.74 MB/s 37.17 MB/s 36.84 MB/s clean 226.02 MB/s 222.58 MB/s 217.94 MB/s read tree 15.14 MB/s 15.02 MB/s 15.14 MB/s read compiled tree 29.30 MB/s 29.31 MB/s 29.32 MB/s delete tree 6.22 seconds 6.14 seconds 6.15 seconds delete compiled tree 5.75 seconds 5.92 seconds 5.81 seconds stat tree 4.60 seconds 4.51 seconds 4.56 seconds stat compiled tree 4.07 seconds 3.87 seconds 3.96 seconds In addition to that also remove the delwri inode flush that is unessecary now that bulkstat is always coherent. Signed-off-by: Christoph Hellwig Index: xfs/fs/xfs/linux-2.6/xfs_super.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_super.c 2010-06-21 09:31:43.638254092 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_super.c 2010-06-21 09:37:01.982255907 +0200 @@ -1025,7 +1025,6 @@ xfs_log_inode( */ xfs_trans_ijoin(tp, ip); xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); - xfs_trans_set_sync(tp); error = xfs_trans_commit(tp, 0); xfs_ilock_demote(ip, XFS_ILOCK_EXCL); @@ -1048,20 +1047,11 @@ xfs_fs_write_inode( if (wbc->sync_mode == WB_SYNC_ALL) { /* - * Make sure the inode has hit stable storage. By using the - * log and the fsync transactions we reduce the IOs we have - * to do here from two (log and inode) to just the log. - * - * Note: We still need to do a delwri write of the inode after - * this to flush it to the backing buffer so that bulkstat - * works properly if this is the first time the inode has been - * written. Because we hold the ilock atomically over the - * transaction commit and the inode flush we are guaranteed - * that the inode is not pinned when it returns. If the flush - * lock is already held, then the inode has already been - * flushed once and we don't need to flush it again. Hence - * the code will only flush the inode if it isn't already - * being flushed. + * Make sure the inode has made it it into the log. Instead + * of forcing it all the way to stable storage using a + * synchronous transaction we let the log force inside the + * ->sync_fs call do that for thus, which reduces the number + * of synchronous log foces dramatically. */ xfs_ioend_wait(ip); xfs_ilock(ip, XFS_ILOCK_SHARED); @@ -1075,27 +1065,29 @@ xfs_fs_write_inode( * We make this non-blocking if the inode is contended, return * EAGAIN to indicate to the caller that they did not succeed. * This prevents the flush path from blocking on inodes inside - * another operation right now, they get caught later by xfs_sync. + * another operation right now, they get caught later by + * xfs_sync. */ if (!xfs_ilock_nowait(ip, XFS_ILOCK_SHARED)) goto out; - } - if (xfs_ipincount(ip) || !xfs_iflock_nowait(ip)) - goto out_unlock; + if (xfs_ipincount(ip) || !xfs_iflock_nowait(ip)) + goto out_unlock; - /* - * Now we have the flush lock and the inode is not pinned, we can check - * if the inode is really clean as we know that there are no pending - * transaction completions, it is not waiting on the delayed write - * queue and there is no IO in progress. - */ - if (xfs_inode_clean(ip)) { - xfs_ifunlock(ip); - error = 0; - goto out_unlock; + /* + * Now we have the flush lock and the inode is not pinned, we + * can check if the inode is really clean as we know that + * there are no pending transaction completions, it is not + * waiting on the delayed write queue and there is no IO in + * progress. + */ + if (xfs_inode_clean(ip)) { + xfs_ifunlock(ip); + error = 0; + goto out_unlock; + } + error = xfs_iflush(ip, 0); } - error = xfs_iflush(ip, 0); out_unlock: xfs_iunlock(ip, XFS_ILOCK_SHARED); From BATV+3dae0f5530bf0d1cca01+2493+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 21 03:33:29 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L8XQ93113432 for ; Mon, 21 Jun 2010 03:33:28 -0500 X-ASG-Debug-ID: 1277109366-132b023a0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 0A00415113F9 for ; Mon, 21 Jun 2010 01:36:06 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id CvoE7trFdXshoR8f for ; Mon, 21 Jun 2010 01:36:06 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQcUA-0007X1-As for xfs@oss.sgi.com; Mon, 21 Jun 2010 08:36:06 +0000 Message-Id: <20100621083543.125860679@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Mon, 21 Jun 2010 04:35:43 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH 00/12] various updates for 2.6.36 Subject: [PATCH 00/12] various updates for 2.6.36 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277109367 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean This is my current set of pending patches, with the writeback code updates, various tracing updates, the write_inode speedup and a couple of cleanups. Some of the patches have already been sent out individually, but this replaces everything since may last big series on May 31st. It requires that patchset ("[PATCH 00/17] pending patches") to be fully applied and Dave's "[PATCH 0/4, V2] xfs: validate inode numbers in file handles correctly" from today to apply. From BATV+3dae0f5530bf0d1cca01+2493+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 21 03:33:29 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L8XRLB113437 for ; Mon, 21 Jun 2010 03:33:29 -0500 X-ASG-Debug-ID: 1277109367-780401fa0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 9491A267830 for ; Mon, 21 Jun 2010 01:36:07 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id 8loPYz0AVVFyE1ft for ; Mon, 21 Jun 2010 01:36:07 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQcUB-0007Zi-7y for xfs@oss.sgi.com; Mon, 21 Jun 2010 08:36:07 +0000 Message-Id: <20100621083607.163131230@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Mon, 21 Jun 2010 04:35:48 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH 05/12] xfs: reduce stack usage in xfs_iomap Subject: [PATCH 05/12] xfs: reduce stack usage in xfs_iomap References: <20100621083543.125860679@bombadil.infradead.org> Content-Disposition: inline; filename=xfs-iomap-more-stack-reduction X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277109367 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean xfs_iomap passes a xfs_bmbt_irec pointer to xfs_iomap_write_direct and xfs_iomap_write_allocate to give them the results of our read-only xfs_bmapi query. Instead of allocating a new xfs_bmbt_irec on stack for the next call to xfs_bmapi re use the one we got passed as it's not used after this point. Signed-off-by: Christoph Hellwig Index: xfs/fs/xfs/xfs_iomap.c =================================================================== --- xfs.orig/fs/xfs/xfs_iomap.c 2010-06-18 09:58:41.210004416 +0200 +++ xfs/fs/xfs/xfs_iomap.c 2010-06-19 14:38:03.535254031 +0200 @@ -242,7 +242,7 @@ xfs_iomap_write_direct( xfs_off_t offset, size_t count, int flags, - xfs_bmbt_irec_t *ret_imap, + xfs_bmbt_irec_t *imap, int *nmaps) { xfs_mount_t *mp = ip->i_mount; @@ -256,7 +256,6 @@ xfs_iomap_write_direct( int quota_flag; int rt; xfs_trans_t *tp; - xfs_bmbt_irec_t imap; xfs_bmap_free_t free_list; uint qblocks, resblks, resrtextents; int committed; @@ -280,10 +279,10 @@ xfs_iomap_write_direct( if (error) goto error_out; } else { - if (*nmaps && (ret_imap->br_startblock == HOLESTARTBLOCK)) + if (*nmaps && (imap->br_startblock == HOLESTARTBLOCK)) last_fsb = MIN(last_fsb, (xfs_fileoff_t) - ret_imap->br_blockcount + - ret_imap->br_startoff); + imap->br_blockcount + + imap->br_startoff); } count_fsb = last_fsb - offset_fsb; ASSERT(count_fsb > 0); @@ -336,12 +335,15 @@ xfs_iomap_write_direct( bmapi_flag |= XFS_BMAPI_PREALLOC; /* - * Issue the xfs_bmapi() call to allocate the blocks + * Issue the xfs_bmapi() call to allocate the blocks. + * + * From this point onwards we overwrite the imap pointer that the + * caller gave to us. */ xfs_bmap_init(&free_list, &firstfsb); nimaps = 1; error = xfs_bmapi(tp, ip, offset_fsb, count_fsb, bmapi_flag, - &firstfsb, 0, &imap, &nimaps, &free_list); + &firstfsb, 0, imap, &nimaps, &free_list); if (error) goto error0; @@ -363,12 +365,11 @@ xfs_iomap_write_direct( goto error_out; } - if (!(imap.br_startblock || XFS_IS_REALTIME_INODE(ip))) { - error = xfs_cmn_err_fsblock_zero(ip, &imap); + if (!(imap->br_startblock || XFS_IS_REALTIME_INODE(ip))) { + error = xfs_cmn_err_fsblock_zero(ip, imap); goto error_out; } - *ret_imap = imap; *nmaps = 1; return 0; @@ -542,7 +543,7 @@ xfs_iomap_write_allocate( xfs_inode_t *ip, xfs_off_t offset, size_t count, - xfs_bmbt_irec_t *map, + xfs_bmbt_irec_t *imap, int *retmap) { xfs_mount_t *mp = ip->i_mount; @@ -551,7 +552,6 @@ xfs_iomap_write_allocate( xfs_fsblock_t first_block; xfs_bmap_free_t free_list; xfs_filblks_t count_fsb; - xfs_bmbt_irec_t imap; xfs_trans_t *tp; int nimaps, committed; int error = 0; @@ -567,8 +567,8 @@ xfs_iomap_write_allocate( return XFS_ERROR(error); offset_fsb = XFS_B_TO_FSBT(mp, offset); - count_fsb = map->br_blockcount; - map_start_fsb = map->br_startoff; + count_fsb = imap->br_blockcount; + map_start_fsb = imap->br_startoff; XFS_STATS_ADD(xs_xstrat_bytes, XFS_FSB_TO_B(mp, count_fsb)); @@ -647,10 +647,15 @@ xfs_iomap_write_allocate( } } - /* Go get the actual blocks */ + /* + * Go get the actual blocks. + * + * From this point onwards we overwrite the imap + * pointer that the caller gave to us. + */ error = xfs_bmapi(tp, ip, map_start_fsb, count_fsb, XFS_BMAPI_WRITE, &first_block, 1, - &imap, &nimaps, &free_list); + imap, &nimaps, &free_list); if (error) goto trans_cancel; @@ -669,13 +674,12 @@ xfs_iomap_write_allocate( * See if we were able to allocate an extent that * covers at least part of the callers request */ - if (!(imap.br_startblock || XFS_IS_REALTIME_INODE(ip))) - return xfs_cmn_err_fsblock_zero(ip, &imap); + if (!(imap->br_startblock || XFS_IS_REALTIME_INODE(ip))) + return xfs_cmn_err_fsblock_zero(ip, imap); - if ((offset_fsb >= imap.br_startoff) && - (offset_fsb < (imap.br_startoff + - imap.br_blockcount))) { - *map = imap; + if ((offset_fsb >= imap->br_startoff) && + (offset_fsb < (imap->br_startoff + + imap->br_blockcount))) { *retmap = 1; XFS_STATS_INC(xs_xstrat_quick); return 0; @@ -685,8 +689,8 @@ xfs_iomap_write_allocate( * So far we have not mapped the requested part of the * file, just surrounding data, try again. */ - count_fsb -= imap.br_blockcount; - map_start_fsb = imap.br_startoff + imap.br_blockcount; + count_fsb -= imap->br_blockcount; + map_start_fsb = imap->br_startoff + imap->br_blockcount; } trans_cancel: From BATV+3dae0f5530bf0d1cca01+2493+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 21 03:33:30 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-4.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_12, LOCAL_GNU_PATCH autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L8XSc0113458 for ; Mon, 21 Jun 2010 03:33:29 -0500 X-ASG-Debug-ID: 1277109613-62ce02e30000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 01F7B1454F6C for ; Mon, 21 Jun 2010 01:40:13 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id 7YfI0urB2Er9srbF for ; Mon, 21 Jun 2010 01:40:13 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQcUC-0007dj-HD for xfs@oss.sgi.com; Mon, 21 Jun 2010 08:36:08 +0000 Message-Id: <20100621083608.395665984@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Mon, 21 Jun 2010 04:35:55 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH 12/12] xfs: split xfs_itrace_entry Subject: [PATCH 12/12] xfs: split xfs_itrace_entry References: <20100621083543.125860679@bombadil.infradead.org> Content-Disposition: inline; filename=xfs-split-itrace X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277109614 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Replace the xfs_itrace_entry catchall with specific trace points. For most simple callers we now use the simple inode class, which used to be the iget class, but add more details tracing for namespace events, which now includes the name of the directory entries manipulated. Remove the xfs_inactive trace point, which is a duplicate of the clear_inode one, and the xfs_change_file_space trace point, which is immediately followed by the more specific alloc/free space trace points. Signed-off-by: Christoph Hellwig Index: xfs/fs/xfs/linux-2.6/xfs_acl.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_acl.c 2010-06-21 09:31:42.750254231 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_acl.c 2010-06-21 09:38:38.800255768 +0200 @@ -225,7 +225,7 @@ xfs_check_acl(struct inode *inode, int m struct posix_acl *acl; int error = -EAGAIN; - xfs_itrace_entry(ip); + trace_xfs_check_acl(ip); /* * If there is no attribute fork no ACL exists on this inode and Index: xfs/fs/xfs/linux-2.6/xfs_aops.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_aops.c 2010-06-21 09:38:38.667254022 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_aops.c 2010-06-21 09:38:38.802285241 +0200 @@ -1513,7 +1513,7 @@ xfs_vm_bmap( struct inode *inode = (struct inode *)mapping->host; struct xfs_inode *ip = XFS_I(inode); - xfs_itrace_entry(XFS_I(inode)); + trace_xfs_vm_bmap(XFS_I(inode)); xfs_ilock(ip, XFS_IOLOCK_SHARED); xfs_flush_pages(ip, (xfs_off_t)0, -1, 0, FI_REMAPF); xfs_iunlock(ip, XFS_IOLOCK_SHARED); Index: xfs/fs/xfs/linux-2.6/xfs_file.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_file.c 2010-06-21 09:31:42.765253742 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_file.c 2010-06-21 09:38:38.807317438 +0200 @@ -100,7 +100,7 @@ xfs_file_fsync( int error = 0; int log_flushed = 0; - xfs_itrace_entry(ip); + trace_xfs_file_fsync(ip); if (XFS_FORCED_SHUTDOWN(ip->i_mount)) return -XFS_ERROR(EIO); Index: xfs/fs/xfs/linux-2.6/xfs_ioctl.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_ioctl.c 2010-06-21 09:31:42.775254720 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_ioctl.c 2010-06-21 09:38:38.810292505 +0200 @@ -899,7 +899,7 @@ xfs_ioctl_setattr( struct xfs_dquot *olddquot = NULL; int code; - xfs_itrace_entry(ip); + trace_xfs_ioctl_setattr(ip); if (mp->m_flags & XFS_MOUNT_RDONLY) return XFS_ERROR(EROFS); @@ -1282,7 +1282,7 @@ xfs_file_ioctl( if (filp->f_mode & FMODE_NOCMTIME) ioflags |= IO_INVIS; - xfs_itrace_entry(ip); + trace_xfs_file_ioctl(ip); switch (cmd) { case XFS_IOC_ALLOCSP: Index: xfs/fs/xfs/linux-2.6/xfs_ioctl32.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_ioctl32.c 2010-06-21 09:31:47.810003149 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_ioctl32.c 2010-06-21 09:38:38.815255279 +0200 @@ -540,7 +540,7 @@ xfs_file_compat_ioctl( if (filp->f_mode & FMODE_NOCMTIME) ioflags |= IO_INVIS; - xfs_itrace_entry(ip); + trace_xfs_file_compat_ioctl(ip); switch (cmd) { /* No size or alignment issues on any arch */ Index: xfs/fs/xfs/linux-2.6/xfs_iops.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_iops.c 2010-06-21 09:31:42.790254790 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_iops.c 2010-06-21 09:38:38.820255558 +0200 @@ -488,7 +488,7 @@ xfs_vn_getattr( struct xfs_inode *ip = XFS_I(inode); struct xfs_mount *mp = ip->i_mount; - xfs_itrace_entry(ip); + trace_xfs_getattr(ip); if (XFS_FORCED_SHUTDOWN(mp)) return XFS_ERROR(EIO); Index: xfs/fs/xfs/linux-2.6/xfs_super.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_super.c 2010-06-21 09:38:38.683275324 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_super.c 2010-06-21 09:38:38.827255768 +0200 @@ -907,7 +907,7 @@ xfs_fs_destroy_inode( { struct xfs_inode *ip = XFS_I(inode); - xfs_itrace_entry(ip); + trace_xfs_destroy_inode(ip); XFS_STATS_INC(vn_reclaim); @@ -1040,7 +1040,7 @@ xfs_fs_write_inode( struct xfs_mount *mp = ip->i_mount; int error = EAGAIN; - xfs_itrace_entry(ip); + trace_xfs_write_inode(ip); if (XFS_FORCED_SHUTDOWN(mp)) return XFS_ERROR(EIO); @@ -1107,7 +1107,8 @@ xfs_fs_clear_inode( { xfs_inode_t *ip = XFS_I(inode); - xfs_itrace_entry(ip); + trace_xfs_clear_inode(ip); + XFS_STATS_INC(vn_rele); XFS_STATS_INC(vn_remove); XFS_STATS_DEC(vn_active); Index: xfs/fs/xfs/linux-2.6/xfs_trace.h =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_trace.h 2010-06-21 09:38:38.711253323 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_trace.h 2010-06-21 09:38:38.834282797 +0200 @@ -536,7 +536,7 @@ DEFINE_LOCK_EVENT(xfs_ilock_nowait); DEFINE_LOCK_EVENT(xfs_ilock_demote); DEFINE_LOCK_EVENT(xfs_iunlock); -DECLARE_EVENT_CLASS(xfs_iget_class, +DECLARE_EVENT_CLASS(xfs_inode_class, TP_PROTO(struct xfs_inode *ip), TP_ARGS(ip), TP_STRUCT__entry( @@ -552,17 +552,36 @@ DECLARE_EVENT_CLASS(xfs_iget_class, __entry->ino) ) -#define DEFINE_IGET_EVENT(name) \ -DEFINE_EVENT(xfs_iget_class, name, \ +#define DEFINE_INODE_EVENT(name) \ +DEFINE_EVENT(xfs_inode_class, name, \ TP_PROTO(struct xfs_inode *ip), \ TP_ARGS(ip)) -DEFINE_IGET_EVENT(xfs_iget_skip); -DEFINE_IGET_EVENT(xfs_iget_reclaim); -DEFINE_IGET_EVENT(xfs_iget_reclaim_fail); -DEFINE_IGET_EVENT(xfs_iget_hit); -DEFINE_IGET_EVENT(xfs_iget_miss); +DEFINE_INODE_EVENT(xfs_iget_skip); +DEFINE_INODE_EVENT(xfs_iget_reclaim); +DEFINE_INODE_EVENT(xfs_iget_reclaim_fail); +DEFINE_INODE_EVENT(xfs_iget_hit); +DEFINE_INODE_EVENT(xfs_iget_miss); + +DEFINE_INODE_EVENT(xfs_getattr); +DEFINE_INODE_EVENT(xfs_setattr); +DEFINE_INODE_EVENT(xfs_readlink); +DEFINE_INODE_EVENT(xfs_alloc_file_space); +DEFINE_INODE_EVENT(xfs_free_file_space); +DEFINE_INODE_EVENT(xfs_readdir); +DEFINE_INODE_EVENT(xfs_check_acl); +DEFINE_INODE_EVENT(xfs_vm_bmap); +DEFINE_INODE_EVENT(xfs_file_ioctl); +DEFINE_INODE_EVENT(xfs_file_compat_ioctl); +DEFINE_INODE_EVENT(xfs_ioctl_setattr); +DEFINE_INODE_EVENT(xfs_file_fsync); +DEFINE_INODE_EVENT(xfs_destroy_inode); +DEFINE_INODE_EVENT(xfs_write_inode); +DEFINE_INODE_EVENT(xfs_clear_inode); -DECLARE_EVENT_CLASS(xfs_inode_class, +DEFINE_INODE_EVENT(xfs_dquot_dqalloc); +DEFINE_INODE_EVENT(xfs_dquot_dqdetach); + +DECLARE_EVENT_CLASS(xfs_iref_class, TP_PROTO(struct xfs_inode *ip, unsigned long caller_ip), TP_ARGS(ip, caller_ip), TP_STRUCT__entry( @@ -587,20 +606,71 @@ DECLARE_EVENT_CLASS(xfs_inode_class, (char *)__entry->caller_ip) ) -#define DEFINE_INODE_EVENT(name) \ -DEFINE_EVENT(xfs_inode_class, name, \ +#define DEFINE_IREF_EVENT(name) \ +DEFINE_EVENT(xfs_iref_class, name, \ TP_PROTO(struct xfs_inode *ip, unsigned long caller_ip), \ TP_ARGS(ip, caller_ip)) -DEFINE_INODE_EVENT(xfs_ihold); -DEFINE_INODE_EVENT(xfs_irele); -DEFINE_INODE_EVENT(xfs_inode_pin); -DEFINE_INODE_EVENT(xfs_inode_unpin); -DEFINE_INODE_EVENT(xfs_inode_unpin_nowait); - -/* the old xfs_itrace_entry tracer - to be replaced by s.th. in the VFS */ -DEFINE_INODE_EVENT(xfs_inode); -#define xfs_itrace_entry(ip) \ - trace_xfs_inode(ip, _THIS_IP_) +DEFINE_IREF_EVENT(xfs_ihold); +DEFINE_IREF_EVENT(xfs_irele); +DEFINE_IREF_EVENT(xfs_inode_pin); +DEFINE_IREF_EVENT(xfs_inode_unpin); +DEFINE_IREF_EVENT(xfs_inode_unpin_nowait); + +DECLARE_EVENT_CLASS(xfs_namespace_class, + TP_PROTO(struct xfs_inode *dp, struct xfs_name *name), + TP_ARGS(dp, name), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, dp_ino) + __dynamic_array(char, name, name->len) + ), + TP_fast_assign( + __entry->dev = VFS_I(dp)->i_sb->s_dev; + __entry->dp_ino = dp->i_ino; + memcpy(__get_str(name), name->name, name->len); + ), + TP_printk("dev %d:%d dp ino 0x%llx name %s", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->dp_ino, + __get_str(name)) +) + +#define DEFINE_NAMESPACE_EVENT(name) \ +DEFINE_EVENT(xfs_namespace_class, name, \ + TP_PROTO(struct xfs_inode *dp, struct xfs_name *name), \ + TP_ARGS(dp, name)) +DEFINE_NAMESPACE_EVENT(xfs_remove); +DEFINE_NAMESPACE_EVENT(xfs_link); +DEFINE_NAMESPACE_EVENT(xfs_lookup); +DEFINE_NAMESPACE_EVENT(xfs_create); +DEFINE_NAMESPACE_EVENT(xfs_symlink); + +TRACE_EVENT(xfs_rename, + TP_PROTO(struct xfs_inode *src_dp, struct xfs_inode *target_dp, + struct xfs_name *src_name, struct xfs_name *target_name), + TP_ARGS(src_dp, target_dp, src_name, target_name), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, src_dp_ino) + __field(xfs_ino_t, target_dp_ino) + __dynamic_array(char, src_name, src_name->len) + __dynamic_array(char, target_name, target_name->len) + ), + TP_fast_assign( + __entry->dev = VFS_I(src_dp)->i_sb->s_dev; + __entry->src_dp_ino = src_dp->i_ino; + __entry->target_dp_ino = target_dp->i_ino; + memcpy(__get_str(src_name), src_name->name, src_name->len); + memcpy(__get_str(target_name), target_name->name, target_name->len); + ), + TP_printk("dev %d:%d src dp ino 0x%llx target dp ino 0x%llx" + " src name %s target name %s", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->src_dp_ino, + __entry->target_dp_ino, + __get_str(src_name), + __get_str(target_name)) +) DECLARE_EVENT_CLASS(xfs_dquot_class, TP_PROTO(struct xfs_dquot *dqp), @@ -680,9 +750,6 @@ DEFINE_DQUOT_EVENT(xfs_dqrele); DEFINE_DQUOT_EVENT(xfs_dqflush); DEFINE_DQUOT_EVENT(xfs_dqflush_force); DEFINE_DQUOT_EVENT(xfs_dqflush_done); -/* not really iget events, but we re-use the format */ -DEFINE_IGET_EVENT(xfs_dquot_dqalloc); -DEFINE_IGET_EVENT(xfs_dquot_dqdetach); DECLARE_EVENT_CLASS(xfs_loggrant_class, TP_PROTO(struct log *log, struct xlog_ticket *tic), Index: xfs/fs/xfs/xfs_dir2.c =================================================================== --- xfs.orig/fs/xfs/xfs_dir2.c 2010-06-21 09:31:42.811254930 +0200 +++ xfs/fs/xfs/xfs_dir2.c 2010-06-21 09:38:38.840032692 +0200 @@ -380,7 +380,7 @@ xfs_readdir( int rval; /* return value */ int v; /* type-checking value */ - xfs_itrace_entry(dp); + trace_xfs_readdir(dp); if (XFS_FORCED_SHUTDOWN(dp->i_mount)) return XFS_ERROR(EIO); Index: xfs/fs/xfs/xfs_vnodeops.c =================================================================== --- xfs.orig/fs/xfs/xfs_vnodeops.c 2010-06-21 09:31:47.890255838 +0200 +++ xfs/fs/xfs/xfs_vnodeops.c 2010-06-21 09:38:38.848255488 +0200 @@ -68,7 +68,7 @@ xfs_setattr( struct xfs_dquot *udqp, *gdqp, *olddquot1, *olddquot2; int need_iolock = 1; - xfs_itrace_entry(ip); + trace_xfs_setattr(ip); if (mp->m_flags & XFS_MOUNT_RDONLY) return XFS_ERROR(EROFS); @@ -533,7 +533,7 @@ xfs_readlink( int pathlen; int error = 0; - xfs_itrace_entry(ip); + trace_xfs_readlink(ip); if (XFS_FORCED_SHUTDOWN(mp)) return XFS_ERROR(EIO); @@ -1005,8 +1005,6 @@ xfs_inactive( int error; int truncate; - xfs_itrace_entry(ip); - /* * If the inode is already free, then there can be nothing * to clean up here. @@ -1221,7 +1219,7 @@ xfs_lookup( int error; uint lock_mode; - xfs_itrace_entry(dp); + trace_xfs_lookup(dp, name); if (XFS_FORCED_SHUTDOWN(dp->i_mount)) return XFS_ERROR(EIO); @@ -1273,7 +1271,7 @@ xfs_create( uint log_res; uint log_count; - xfs_itrace_entry(dp); + trace_xfs_create(dp, name); if (XFS_FORCED_SHUTDOWN(mp)) return XFS_ERROR(EIO); @@ -1670,8 +1668,7 @@ xfs_remove( uint resblks; uint log_count; - xfs_itrace_entry(dp); - xfs_itrace_entry(ip); + trace_xfs_remove(dp, name); if (XFS_FORCED_SHUTDOWN(mp)) return XFS_ERROR(EIO); @@ -1832,8 +1829,7 @@ xfs_link( int committed; int resblks; - xfs_itrace_entry(tdp); - xfs_itrace_entry(sip); + trace_xfs_link(tdp, target_name); ASSERT(!S_ISDIR(sip->i_d.di_mode)); @@ -1966,7 +1962,7 @@ xfs_symlink( ip = NULL; tp = NULL; - xfs_itrace_entry(dp); + trace_xfs_symlink(dp, link_name); if (XFS_FORCED_SHUTDOWN(mp)) return XFS_ERROR(EIO); @@ -2256,7 +2252,7 @@ xfs_alloc_file_space( int committed; int error; - xfs_itrace_entry(ip); + trace_xfs_alloc_file_space(ip); if (XFS_FORCED_SHUTDOWN(mp)) return XFS_ERROR(EIO); @@ -2517,7 +2513,7 @@ xfs_free_file_space( mp = ip->i_mount; - xfs_itrace_entry(ip); + trace_xfs_free_file_space(ip); error = xfs_qm_dqattach(ip, 0); if (error) @@ -2707,8 +2703,6 @@ xfs_change_file_space( xfs_trans_t *tp; struct iattr iattr; - xfs_itrace_entry(ip); - if (!S_ISREG(ip->i_d.di_mode)) return XFS_ERROR(EINVAL); Index: xfs/fs/xfs/xfs_rename.c =================================================================== --- xfs.orig/fs/xfs/xfs_rename.c 2010-06-21 09:31:42.833254441 +0200 +++ xfs/fs/xfs/xfs_rename.c 2010-06-21 09:38:38.853285101 +0200 @@ -113,8 +113,7 @@ xfs_rename( int spaceres; int num_inodes; - xfs_itrace_entry(src_dp); - xfs_itrace_entry(target_dp); + trace_xfs_rename(src_dp, target_dp, src_name, target_name); new_parent = (src_dp != target_dp); src_is_directory = ((src_ip->i_d.di_mode & S_IFMT) == S_IFDIR); From BATV+3dae0f5530bf0d1cca01+2493+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 21 03:33:29 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5L8XRX4113439 for ; Mon, 21 Jun 2010 03:33:29 -0500 X-ASG-Debug-ID: 1277109367-137102490000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id B4AC015113FF for ; Mon, 21 Jun 2010 01:36:07 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id KIreF4515ihYmHCu for ; Mon, 21 Jun 2010 01:36:07 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OQcUB-0007aE-Da for xfs@oss.sgi.com; Mon, 21 Jun 2010 08:36:07 +0000 Message-Id: <20100621083607.340728554@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Mon, 21 Jun 2010 04:35:49 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH 06/12] xfs: small cleanups for xfs_iomap / __xfs_get_blocks Subject: [PATCH 06/12] xfs: small cleanups for xfs_iomap / __xfs_get_blocks References: <20100621083543.125860679@bombadil.infradead.org> Content-Disposition: inline; filename=xfs-iomap-cleanup X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277109367 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Remove the flags argument to __xfs_get_blocks as we can easily derive it from the direct argument, and remove the unused BMAPI_MMAP flag. Signed-off-by: Christoph Hellwig Index: xfs/fs/xfs/linux-2.6/xfs_aops.c =================================================================== --- xfs.orig/fs/xfs/linux-2.6/xfs_aops.c 2010-06-19 14:37:17.299004136 +0200 +++ xfs/fs/xfs/linux-2.6/xfs_aops.c 2010-06-19 14:39:34.313254590 +0200 @@ -1295,9 +1295,9 @@ __xfs_get_blocks( sector_t iblock, struct buffer_head *bh_result, int create, - int direct, - bmapi_flags_t flags) + int direct) { + int flags = create ? BMAPI_WRITE : BMAPI_READ; struct xfs_bmbt_irec imap; xfs_off_t offset; ssize_t size; @@ -1312,8 +1312,11 @@ __xfs_get_blocks( if (!create && direct && offset >= i_size_read(inode)) return 0; - error = xfs_iomap(XFS_I(inode), offset, size, - create ? flags : BMAPI_READ, &imap, &nimap, &new); + if (direct && create) + flags |= BMAPI_DIRECT; + + error = xfs_iomap(XFS_I(inode), offset, size, flags, &imap, &nimap, + &new); if (error) return -error; if (nimap == 0) @@ -1393,8 +1396,7 @@ xfs_get_blocks( struct buffer_head *bh_result, int create) { - return __xfs_get_blocks(inode, iblock, - bh_result, create, 0, BMAPI_WRITE); + return __xfs_get_blocks(inode, iblock, bh_result, create, 0); } STATIC int @@ -1404,8 +1406,7 @@ xfs_get_blocks_direct( struct buffer_head *bh_result, int create) { - return __xfs_get_blocks(inode, iblock, - bh_result, create, 1, BMAPI_WRITE|BMAPI_DIRECT); + return __xfs_get_blocks(inode, iblock, bh_result, create, 1); } STATIC void Index: xfs/fs/xfs/xfs_iomap.c =================================================================== --- xfs.orig/fs/xfs/xfs_iomap.c 2010-06-19 14:38:03.535254031 +0200 +++ xfs/fs/xfs/xfs_iomap.c 2010-06-19 14:39:34.313254590 +0200 @@ -133,7 +133,7 @@ xfs_iomap( break; } - if (flags & (BMAPI_DIRECT|BMAPI_MMAP)) { + if (flags & BMAPI_DIRECT) { error = xfs_iomap_write_direct(ip, offset, count, flags, imap, nimaps); } else { Index: xfs/fs/xfs/xfs_iomap.h =================================================================== --- xfs.orig/fs/xfs/xfs_iomap.h 2010-06-19 14:37:17.318004066 +0200 +++ xfs/fs/xfs/xfs_iomap.h 2010-06-19 14:39:34.318254380 +0200 @@ -26,7 +26,6 @@ typedef enum { /* modifiers */ BMAPI_IGNSTATE = (1 << 4), /* ignore unwritten state on read */ BMAPI_DIRECT = (1 << 5), /* direct instead of buffered write */ - BMAPI_MMAP = (1 << 6), /* allocate for mmap write */ BMAPI_TRYLOCK = (1 << 7), /* non-blocking request */ } bmapi_flags_t; @@ -36,7 +35,6 @@ typedef enum { { BMAPI_ALLOCATE, "ALLOCATE" }, \ { BMAPI_IGNSTATE, "IGNSTATE" }, \ { BMAPI_DIRECT, "DIRECT" }, \ - { BMAPI_MMAP, "MMAP" }, \ { BMAPI_TRYLOCK, "TRYLOCK" } struct xfs_inode; From grafgrimm77@gmx.de Mon Jun 21 06:32:47 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5LBWlL3120101 for ; Mon, 21 Jun 2010 06:32:47 -0500 X-ASG-Debug-ID: 1277120126-221b02be0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.gmx.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with SMTP id 6E60D3EFE07 for ; Mon, 21 Jun 2010 04:35:26 -0700 (PDT) Received: from mail.gmx.net (mail.gmx.net [213.165.64.20]) by cuda.sgi.com with SMTP id lgHj0vEuIjzKSsiF for ; Mon, 21 Jun 2010 04:35:26 -0700 (PDT) Received: (qmail invoked by alias); 21 Jun 2010 11:35:25 -0000 Received: from p4FDD1F96.dip.t-dialin.net (EHLO server.grafnetz) [79.221.31.150] by mail.gmx.net (mp005) with SMTP; 21 Jun 2010 13:35:25 +0200 X-Authenticated: #1282162 X-Provags-ID: V01U2FsdGVkX1/TEcxOQHLTSctw2H70jMC+REL7LTxVb6fBLlKFxP 2tsvTiNdTPudjr Received: from x2.grafnetz ([192.168.0.4]) by server.grafnetz with esmtps (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.72) (envelope-from ) id 1OQfHe-0003CG-6R; Mon, 21 Jun 2010 13:35:23 +0200 Date: Mon, 21 Jun 2010 13:35:21 +0200 From: Mario Bachmann To: Christoph Hellwig Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: vmalloc, xfs_buf_get: failed to map pages Subject: Re: vmalloc, xfs_buf_get: failed to map pages Message-ID: <20100621133521.4eb1a891@x2.grafnetz> In-Reply-To: <20100621072118.GA1361@infradead.org> References: <20100619150119.3ce64102@x2.grafnetz> <20100621072118.GA1361@infradead.org> X-Mailer: Claws Mail 3.7.6 (GTK+ 2.20.1; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 X-Barracuda-Connect: mail.gmx.net[213.165.64.20] X-Barracuda-Start-Time: 1277120127 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33131 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Am Mon, 21 Jun 2010 03:21:18 -0400 schrieb Christoph Hellwig : > On Sat, Jun 19, 2010 at 03:01:19PM +0200, Mario Bachmann wrote: > > Hello, > > > > on a 32bit machine, I have big problems with Linux 2.6.34. > > With Linux 2.6.33.4 everything runs fine. > > > > I do not know where to search for known bugs in xfs. > > > > /var/log/messages shows a lot of lines: > > > > Jun 19 11:43:15 amd2000 kernel: vmap allocation for size 4194304 failed: use vmalloc= to increase size. > > Jun 19 11:43:15 amd2000 kernel: xfs_buf_get: failed to map pages > > > > What to to? > > Strange. There have been no fixes to the vmap allocator nor to the > XFS using this. What other modules are you ising? Maybe they increased > their amount of used vmalloc space. For now the only thing you can do > is using the vmalloc= kernel paramter to increase the vmalloc space. What is the command to get all used modules? Here is the output of the old kernel (2.6.33.4). I used the same kernel-.config for the new kernel (2.6.34): amd2000 ~ # cat /proc/modules sch_sfq 4645 1 - Live 0xf9537000 nfsd 219445 13 - Live 0xf9301000 ipv6 201317 34 - Live 0xf9283000 nf_conntrack_ftp 4780 0 - Live 0xf9238000 nf_conntrack_irc 2587 0 - Live 0xf922d000 ipt_REJECT 1785 2 - Live 0xf8782000 xt_tcpudp 1863 64 - Live 0xf85cc000 nf_conntrack_ipv4 7781 65 - Live 0xf85c0000 nf_defrag_ipv4 747 1 nf_conntrack_ipv4, Live 0xf85b4000 xt_state 919 65 - Live 0xf85ab000 ipt_LOG 4203 12 - Live 0xf8586000 xt_limit 1140 14 - Live 0xf857c000 iptable_filter 1034 1 - Live 0xf84d4000 ipt_addrtype 1449 0 - Live 0xf84ca000 xt_DSCP 1499 0 - Live 0xf84c1000 xt_dscp 1155 0 - Live 0xf84b8000 xt_string 1051 0 - Live 0xf84af000 xt_owner 791 6 - Live 0xf84a6000 xt_NFQUEUE 1565 0 - Live 0xf849d000 xt_multiport 2163 0 - Live 0xf8494000 xt_MARK 597 0 - Live 0xf848a000 xt_mark 597 0 - Live 0xf8481000 xt_iprange 1112 0 - Live 0xf8478000 xt_hashlimit 7490 0 - Live 0xf846e000 xt_conntrack 2183 0 - Live 0xf8462000 xt_CONNMARK 963 0 - Live 0xf8458000 xt_connmark 803 0 - Live 0xf803e000 nf_conntrack 38512 7 nf_conntrack_ftp,nf_conntrack_irc,nf_conntrack_ipv4,xt_state,xt_conntrack,xt_CONNMARK,xt_connmark, Live 0xf843f000 ip_tables 7645 1 iptable_filter, Live 0xf8034000 x_tables 9456 20 ipt_REJECT,xt_tcpudp,xt_state,ipt_LOG,xt_limit,ipt_addrtype,xt_DSCP,xt_dscp,xt_string,xt_owner,xt_NFQUEUE,xt_multiport,xt_MARK,xt_mark,xt_iprange,xt_hashlimit,xt_conntrack,xt_CONNMARK,xt_connmark,ip_tables, Live 0xf800d000 snd_ens1371 13650 0 - Live 0xfa21d000 gameport 6213 1 snd_ens1371, Live 0xfa20d000 snd_rawmidi 14248 1 snd_ens1371, Live 0xfa1fd000 snd_intel8x0 21243 0 - Live 0xfa1e8000 snd_seq_device 4105 1 snd_rawmidi, Live 0xfa1d5000 snd_ac97_codec 85509 2 snd_ens1371,snd_intel8x0, Live 0xfa190000 ac97_bus 702 1 snd_ac97_codec, Live 0xfa166000 snd_pcm 48336 3 snd_ens1371,snd_intel8x0,snd_ac97_codec, Live 0xfa0ef000 snd_timer 14100 1 snd_pcm, Live 0xfa0ca000 nvidia 9829303 0 - Live 0xf9636000 (P) ppdev 5090 0 - Live 0xf8bdd000 parport_pc 23336 0 - Live 0xf8bbe000 snd 36462 7 snd_ens1371,snd_rawmidi,snd_intel8x0,snd_seq_device,snd_ac97_codec,snd_pcm,snd_timer, Live 0xf8b95000 parport 24435 2 ppdev,parport_pc, Live 0xf8b70000 snd_page_alloc 5345 2 snd_intel8x0,snd_pcm, Live 0xf8012000 What is a good value for vmalloc= ? The machine has 1 GB of RAM. Mario From xiaowei.hu@oracle.com Tue Jun 22 02:15:58 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,J_CHICKENPOX_43, J_CHICKENPOX_52 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5M7FwBY229270 for ; Tue, 22 Jun 2010 02:15:58 -0500 X-ASG-Debug-ID: 1277191118-5a85032f0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from rcsinet10.oracle.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id EA9213F6937 for ; Tue, 22 Jun 2010 00:18:38 -0700 (PDT) Received: from rcsinet10.oracle.com (rcsinet10.oracle.com [148.87.113.121]) by cuda.sgi.com with ESMTP id mkLYKVFAitZ34b7f for ; Tue, 22 Jun 2010 00:18:38 -0700 (PDT) Received: from acsinet15.oracle.com (acsinet15.oracle.com [141.146.126.227]) by rcsinet10.oracle.com (Switch-3.4.2/Switch-3.4.2) with ESMTP id o5M7IAkY018553 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 22 Jun 2010 07:18:14 GMT Received: from acsmt353.oracle.com (acsmt353.oracle.com [141.146.40.153]) by acsinet15.oracle.com (Switch-3.4.2/Switch-3.4.1) with ESMTP id o5M6qirK017837; Tue, 22 Jun 2010 07:18:09 GMT Received: from abhmt016.oracle.com by acsmt353.oracle.com with ESMTP id 362653091277191026; Tue, 22 Jun 2010 00:17:06 -0700 Received: from [10.182.120.139] (/10.182.120.139) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 22 Jun 2010 00:17:03 -0700 X-ASG-Orig-Subj: Re: segment fault when running xfs_check -s Subject: Re: segment fault when running xfs_check -s From: xiaowei hu Reply-To: xiaowei.hu@oracle.com To: Dave Chinner Cc: xfs@oss.sgi.com, wen.gang.wang@oracle.com In-Reply-To: <20100621053803.GK6590@dastard> References: <1277088918.20616.81.camel@redfuture-desktop> <20100621053803.GK6590@dastard> Content-Type: text/plain; charset="UTF-8" Organization: Oracle Date: Tue, 22 Jun 2010 15:17:00 +0800 Message-ID: <1277191020.1636.7.camel@redfuture-desktop> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit X-Auth-Type: Internal IP X-Source-IP: acsinet15.oracle.com [141.146.126.227] X-CT-RefId: str=0001.0A090201.4C2063BF.0238:SCFMA922111,ss=1,fgs=0 X-Barracuda-Connect: rcsinet10.oracle.com[148.87.113.121] X-Barracuda-Start-Time: 1277191118 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33209 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hi Dave, I tried this patch,it fixes this bug, thank you very much:) Regards, Xiaowei On Mon, 2010-06-21 at 15:38 +1000, Dave Chinner wrote: > On Mon, Jun 21, 2010 at 10:55:18AM +0800, xiaowei hu wrote: > > Hi, > > > > Recently I was playing with xfsprogs, and did some test on xfs_check > > tools in this mothod: > > 1.make a xfs fs on one partition. > > mkfs.xfs -f /dev/sda2 > > 2.randomly modify some blocks on this volume using xfs_db. > > xfs_db -x -c blockget -c "blocktrash -3 -s 36 -n 81" /dev/sda2 > > 3.run xfs_check -s > > xfs_check -s /dev/sda2 > > > > the output saying: > > [root@test1 ~]# xfs_check -s /dev/sda2 > > bad version number 0x78 for inode 135 > > bad magic number 0xa855 for inode 154 > > bad magic number 0x5024 for inode 165 > > /usr/local/bin/xfs_check: line 28: 769 Segmentation fault xfs_db > > $DBOPTS -F -i -p xfs_check -c "blockget$OPTS" $1 > > > > if I run xfs_check without -s option, don't have this fault. > > > > Is this a known problem? > > No. > > > I tried the latest code ,also have this problem. > > Yeah, the code determining whether to output a message is broken: > > 2651 if (!isfree) { > 2652 id = find_inode(ino, 1); > 2653 bno = XFS_INO_TO_FSB(mp, ino); > 2654 blkmap = NULL; > 2655 } > > find_inode() checks a list created by the "-i " command line > option, so will always return NULL for this test case. Most of the checks > do this: > > 2657 if (!sflag || isfree || id->ilist || CHECK_BLIST(bno)) > > sflag is set by the "-s" command line option, which is why this > problem requires that to be set - the output checks don't get past > this otherwise. > > isfree is a parameter passed into to say whether the inode is > allocated or not. The code hence assumes that if !isfree, then id != > NULL, which is certainly not the case. Hence it can blow up if id = > NULL. > > The line it crashed on: > > 2670 if (isfree) { > 2671 if (idic.di_nblocks != 0) { > 2672 >>>>>> if (!sflag || id->ilist || CHECK_BLIST(bno)) > > Looks like a clear case of copy-n-paste error - if isfree is set, the > id _must_ be null and we go kaboom. > > It looks like none of the code in this function actually checks for > whether id is valid or not after find_inode and dereferencing the > reurn pointer. > > The patch below should fix the problem. > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > --- > db/check.c | 29 ++++++++++++++++------------- > 1 files changed, 16 insertions(+), 13 deletions(-) > > diff --git a/db/check.c b/db/check.c > index 7620d9c..e0dcf63 100644 > --- a/db/check.c > +++ b/db/check.c > @@ -2619,6 +2619,7 @@ process_inode( > xfs_qcnt_t ic = 0; > xfs_qcnt_t rc = 0; > xfs_dqid_t dqprid; > + int v = 0; > static char okfmts[] = { > 0, /* type 0 unused */ > 1 << XFS_DINODE_FMT_DEV, /* FIFO */ > @@ -2653,15 +2654,16 @@ process_inode( > bno = XFS_INO_TO_FSB(mp, ino); > blkmap = NULL; > } > + v = (!sflag || (id && id->ilist) || CHECK_BLIST(bno)); > if (idic.di_magic != XFS_DINODE_MAGIC) { > - if (!sflag || isfree || id->ilist || CHECK_BLIST(bno)) > + if (isfree || v) > dbprintf(_("bad magic number %#x for inode %lld\n"), > idic.di_magic, ino); > error++; > return; > } > if (!XFS_DINODE_GOOD_VERSION(idic.di_version)) { > - if (!sflag || isfree || id->ilist || CHECK_BLIST(bno)) > + if (isfree || v) > dbprintf(_("bad version number %#x for inode %lld\n"), > idic.di_version, ino); > error++; > @@ -2669,7 +2671,7 @@ process_inode( > } > if (isfree) { > if (idic.di_nblocks != 0) { > - if (!sflag || id->ilist || CHECK_BLIST(bno)) > + if (v) > dbprintf(_("bad nblocks %lld for free inode " > "%lld\n"), > idic.di_nblocks, ino); > @@ -2680,21 +2682,22 @@ process_inode( > else > nlink = idic.di_nlink; > if (nlink != 0) { > - if (!sflag || id->ilist || CHECK_BLIST(bno)) > + if (v) > dbprintf(_("bad nlink %d for free inode %lld\n"), > nlink, ino); > error++; > } > if (idic.di_mode != 0) { > - if (!sflag || id->ilist || CHECK_BLIST(bno)) > + if (v) > dbprintf(_("bad mode %#o for free inode %lld\n"), > idic.di_mode, ino); > error++; > } > return; > } > + > if (be32_to_cpu(dip->di_next_unlinked) != NULLAGINO) { > - if (!sflag || isfree || id->ilist || CHECK_BLIST(bno)) > + if (v) > dbprintf(_("bad next unlinked %#x for inode %lld\n"), > be32_to_cpu(dip->di_next_unlinked), ino); > error++; > @@ -2704,27 +2707,27 @@ process_inode( > */ > if ((((idic.di_mode & S_IFMT) >> 12) > 15) || > (!(okfmts[(idic.di_mode & S_IFMT) >> 12] & (1 << idic.di_format)))) { > - if (!sflag || id->ilist || CHECK_BLIST(bno)) > + if (v) > dbprintf(_("bad format %d for inode %lld type %#o\n"), > idic.di_format, id->ino, idic.di_mode & S_IFMT); > error++; > return; > } > if ((unsigned int)XFS_DFORK_ASIZE(dip, mp) >= XFS_LITINO(mp)) { > - if (!sflag || id->ilist) > + if (v) > dbprintf(_("bad fork offset %d for inode %lld\n"), > idic.di_forkoff, id->ino); > error++; > return; > } > if ((unsigned int)idic.di_aformat > XFS_DINODE_FMT_BTREE) { > - if (!sflag || id->ilist) > + if (v) > dbprintf(_("bad attribute format %d for inode %lld\n"), > idic.di_aformat, id->ino); > error++; > return; > } > - if (verbose || id->ilist || CHECK_BLIST(bno)) > + if (verbose || v) > dbprintf(_("inode %lld mode %#o fmt %s " > "afmt %s " > "nex %d anex %d nblk %lld sz %lld%s%s%s%s%s%s%s\n"), > @@ -2844,20 +2847,20 @@ process_inode( > } > totblocks = totdblocks + totiblocks + atotdblocks + atotiblocks; > if (totblocks != idic.di_nblocks) { > - if (!sflag || id->ilist || CHECK_BLIST(bno)) > + if (v) > dbprintf(_("bad nblocks %lld for inode %lld, counted " > "%lld\n"), > idic.di_nblocks, id->ino, totblocks); > error++; > } > if (nextents != idic.di_nextents) { > - if (!sflag || id->ilist || CHECK_BLIST(bno)) > + if (v) > dbprintf(_("bad nextents %d for inode %lld, counted %d\n"), > idic.di_nextents, id->ino, nextents); > error++; > } > if (anextents != idic.di_anextents) { > - if (!sflag || id->ilist || CHECK_BLIST(bno)) > + if (v) > dbprintf(_("bad anextents %d for inode %lld, counted " > "%d\n"), > idic.di_anextents, id->ino, anextents); From BATV+426d469270cba0530d86+2494+infradead.org+hch@bombadil.srs.infradead.org Tue Jun 22 07:28:34 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,J_CHICKENPOX_43, J_CHICKENPOX_63 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5MCSWBc237975 for ; Tue, 22 Jun 2010 07:28:34 -0500 X-ASG-Debug-ID: 1277209873-78cd02390000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 618621514BC4 for ; Tue, 22 Jun 2010 05:31:13 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id slFGi7Vg4hWxCrOh for ; Tue, 22 Jun 2010 05:31:13 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OR2dE-0004vh-UZ; Tue, 22 Jun 2010 12:31:12 +0000 Message-Id: <20100622122144.302857146@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Tue, 22 Jun 2010 08:21:44 -0400 From: Christoph Hellwig To: linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com, linux-ext4@vger.kernel.org X-ASG-Orig-Subj: [PATCH 0/2] Fix aio completion vs unwritten extents Subject: [PATCH 0/2] Fix aio completion vs unwritten extents X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277209873 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Some filesystems (XFS and ext4) have support for a concept called unwritten extents, where we can write data into holes / preallocated space and only mark them as allocated when the data I/O has finished. Because the transaction to convert the extent can't be submitted from I/O completion, which normally happens from IRQ context it needs to be defered to a workqueue. This is not a problem for buffered I/O where we keep the data in cache at least until the I/O operation has finished, but it is an issue for direct I/O. XFS avoids that problem for synchronous direct I/O by waiting for all unwritten extent conversions to finish if we did one during direct I/O, but so far has ignored the problem for asynchronous I/O. Unfortunately the race is very easy to hit by using QEMU with native AIO support on a sparse image, and the result is filesystem corruption in the guest. This contains core direct I/O changes to allow the filesystem to delay AIO completion, as well as a patch to fix XFS. ext4 also has the same issue, and from a quick look also doesn't properly complete unwritten extent conversions for synchronous direct I/O, but I'll leave that for someone more familar to figure out. Below is a minimal reproducer for the issue. Given that we're dealing with a race condition it doesn't always fail, but in 2 core laptop it triggers 100% reproducibly in 20 runs in a loop. --- #define _GNU_SOURCE #include #include #include #include #include #include #include #include #define BUF_SIZE 4096 #define IO_PATTERN 0xab int main(int argc, char *argv[]) { struct io_context *ctx = NULL; struct io_event ev; struct iocb iocb, *iocbs[] = { &iocb }; void *buf; char cmp_buf[BUF_SIZE]; int fd, err = 0; fd = open(argv[1], O_DIRECT | O_CREAT | O_TRUNC | O_RDWR, 0600); if (fd == -1) { perror("open"); return 1; } err = posix_memalign(&buf, BUF_SIZE, BUF_SIZE); if (err) { fprintf(stderr, "error %s during %s\n", strerror(-err), "posix_memalign"); return 1; } memset(buf, IO_PATTERN, BUF_SIZE); memset(cmp_buf, IO_PATTERN, BUF_SIZE); /* * Truncate to some random large file size. Just make sure * it's not smaller than our I/O size. */ if (ftruncate(fd, 1024 * 1024 * 1024) < 0) { perror("ftruncate"); return 1; } /* * Do a simple 4k write into a hole using aio. */ err = io_setup(1, &ctx); if (err) { fprintf(stderr, "error %s during %s\n", strerror(-err), "io_setup"); return 1; } io_prep_pwrite(&iocb, fd, buf, BUF_SIZE, 0); err = io_submit(ctx, 1, iocbs); if (err != 1) { fprintf(stderr, "error %s during %s\n", strerror(-err), "io_submit"); return 1; } err = io_getevents(ctx, 1, 1, &ev, NULL); if (err != 1) { fprintf(stderr, "error %s during %s\n", strerror(-err), "io_getevents"); return 1; } /* * And then read it back. * * Using pread to keep it simple, but AIO has the same effect. */ if (pread(fd, buf, BUF_SIZE, 0) != BUF_SIZE) { perror("pread"); return 1; } /* * And depending on the machine we'll just get zeroes back quite * often here. That's because the unwritten extent conversion * hasn't finished. */ if (memcmp(buf, cmp_buf, BUF_SIZE)) { unsigned long long *ubuf = (unsigned long long *)buf; int i; for (i = 0; i < BUF_SIZE / sizeof(unsigned long long); i++) printf("%d: 0x%llx\n", i, ubuf[i]); return 1; } return 0; } From BATV+426d469270cba0530d86+2494+infradead.org+hch@bombadil.srs.infradead.org Tue Jun 22 07:28:44 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5MCShE7237996 for ; Tue, 22 Jun 2010 07:28:43 -0500 X-ASG-Debug-ID: 1277210124-4b9600310000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id AA20B14ACD7D for ; Tue, 22 Jun 2010 05:35:25 -0700 (PDT) Received: from bombadil.infradead.org ([18.85.46.34]) by cuda.sgi.com with ESMTP id P52YTNiBwVTaMCg4 for ; Tue, 22 Jun 2010 05:35:25 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OR2dF-0004wr-9K; Tue, 22 Jun 2010 12:31:13 +0000 Message-Id: <20100622123113.205150586@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Tue, 22 Jun 2010 08:21:46 -0400 From: Christoph Hellwig To: linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com, linux-ext4@vger.kernel.org X-ASG-Orig-Subj: [PATCH 2/2] xfs: move aio completion after unwritten extent conversion Subject: [PATCH 2/2] xfs: move aio completion after unwritten extent conversion References: <20100622122144.302857146@bombadil.infradead.org> Content-Disposition: inline; filename=xfs-unwritten-fix X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[18.85.46.34] X-Barracuda-Start-Time: 1277210125 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean If we write into an unwritten extent using AIO we need to complete the AIO request after the extent conversion has finished. Without that a read could race to see see the extent still unwritten and return zeros. For synchronous I/O we already take care of that by flushing the xfsconvertd workqueue (which might be a bit of overkill). To do that add iocb and result fields to struct xfs_ioend, so that we can call aio_complete from xfs_end_io after the extent conversion has happened. Note that we need a new result field as io_error is used for positive errno values, while the AIO code can return negative error values and positive transfer sizes. Signed-off-by: Christoph Hellwig Index: linux-2.6/fs/xfs/linux-2.6/xfs_aops.c =================================================================== --- linux-2.6.orig/fs/xfs/linux-2.6/xfs_aops.c 2010-06-22 14:05:02.522005722 +0200 +++ linux-2.6/fs/xfs/linux-2.6/xfs_aops.c 2010-06-22 14:08:30.065006205 +0200 @@ -275,8 +275,11 @@ xfs_end_io( xfs_finish_ioend(ioend, 0); /* ensure we don't spin on blocked ioends */ delay(1); - } else + } else { + if (ioend->io_iocb) + aio_complete(ioend->io_iocb, ioend->io_result, 0); xfs_destroy_ioend(ioend); + } } /* @@ -309,6 +312,8 @@ xfs_alloc_ioend( atomic_inc(&XFS_I(ioend->io_inode)->i_iocount); ioend->io_offset = 0; ioend->io_size = 0; + ioend->io_iocb = NULL; + ioend->io_result = 0; INIT_WORK(&ioend->io_work, xfs_end_io); return ioend; @@ -1604,6 +1609,7 @@ xfs_end_io_direct( bool is_async) { xfs_ioend_t *ioend = iocb->private; + bool complete_aio = is_async; /* * Non-NULL private data means we need to issue a transaction to @@ -1629,7 +1635,14 @@ xfs_end_io_direct( if (ioend->io_type == IO_READ) { xfs_finish_ioend(ioend, 0); } else if (private && size > 0) { - xfs_finish_ioend(ioend, is_sync_kiocb(iocb)); + if (is_async) { + ioend->io_iocb = iocb; + ioend->io_result = ret; + complete_aio = false; + xfs_finish_ioend(ioend, 0); + } else { + xfs_finish_ioend(ioend, 1); + } } else { /* * A direct I/O write ioend starts it's life in unwritten @@ -1648,7 +1661,7 @@ xfs_end_io_direct( */ iocb->private = NULL; - if (is_async) + if (complete_aio) aio_complete(iocb, ret, 0); } From BATV+426d469270cba0530d86+2494+infradead.org+hch@bombadil.srs.infradead.org Tue Jun 22 07:28:44 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5MCSh8V237997 for ; Tue, 22 Jun 2010 07:28:43 -0500 X-ASG-Debug-ID: 1277210124-4b97003e0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id B527014ACD7E for ; Tue, 22 Jun 2010 05:35:24 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id sS5h7hdqVjn7MG6D for ; Tue, 22 Jun 2010 05:35:24 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OR2dF-0004wI-3a; Tue, 22 Jun 2010 12:31:13 +0000 Message-Id: <20100622123113.011371666@bombadil.infradead.org> User-Agent: quilt/0.47-1 Date: Tue, 22 Jun 2010 08:21:45 -0400 From: Christoph Hellwig To: linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com, linux-ext4@vger.kernel.org X-ASG-Orig-Subj: [PATCH 1/2] direct-io: move aio_complete into ->end_io Subject: [PATCH 1/2] direct-io: move aio_complete into ->end_io References: <20100622122144.302857146@bombadil.infradead.org> Content-Disposition: inline; filename=direct-io-unwritten-fix X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277210126 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Filesystems with unwritten extent support must not complete an AIO request until the transaction to convert the extent has been commited. That means the aio_complete calls needs to be moved into the ->end_io callback so that the filesystem can control when to call it exactly. This makes a bit of a mess out of dio_complete and the ->end_io callback prototype even more complicated. In addition ->end_io is now called with i_alloc_sem held for DIO_LOCKING filesystems. The only filesystem that has both and ->end_io callback and sets DIO_LOCKING is ext4, which doesn't appear to do anything that could deadlock with i_alloc_sem in ->end_io. Signed-off-by: Christoph Hellwig Index: linux-2.6/fs/direct-io.c =================================================================== --- linux-2.6.orig/fs/direct-io.c 2010-06-22 09:48:37.239004298 +0200 +++ linux-2.6/fs/direct-io.c 2010-06-22 11:54:42.281003878 +0200 @@ -218,7 +218,7 @@ static struct page *dio_get_page(struct * filesystems can use it to hold additional state between get_block calls and * dio_complete. */ -static int dio_complete(struct dio *dio, loff_t offset, int ret) +static int dio_complete(struct dio *dio, loff_t offset, int ret, bool is_async) { ssize_t transferred = 0; @@ -239,14 +239,6 @@ static int dio_complete(struct dio *dio, transferred = dio->i_size - offset; } - if (dio->end_io && dio->result) - dio->end_io(dio->iocb, offset, transferred, - dio->map_bh.b_private); - - if (dio->flags & DIO_LOCKING) - /* lockdep: non-owner release */ - up_read_non_owner(&dio->inode->i_alloc_sem); - if (ret == 0) ret = dio->page_errors; if (ret == 0) @@ -254,6 +246,17 @@ static int dio_complete(struct dio *dio, if (ret == 0) ret = transferred; + if (dio->end_io && dio->result) { + dio->end_io(dio->iocb, offset, transferred, + dio->map_bh.b_private, ret, is_async); + } else if (is_async) { + aio_complete(dio->iocb, ret, 0); + } + + if (dio->flags & DIO_LOCKING) + /* lockdep: non-owner release */ + up_read_non_owner(&dio->inode->i_alloc_sem); + return ret; } @@ -277,8 +280,7 @@ static void dio_bio_end_aio(struct bio * spin_unlock_irqrestore(&dio->bio_lock, flags); if (remaining == 0) { - int ret = dio_complete(dio, dio->iocb->ki_pos, 0); - aio_complete(dio->iocb, ret, 0); + dio_complete(dio, dio->iocb->ki_pos, 0, true); kfree(dio); } } @@ -1126,7 +1128,7 @@ direct_io_worker(int rw, struct kiocb *i spin_unlock_irqrestore(&dio->bio_lock, flags); if (ret2 == 0) { - ret = dio_complete(dio, offset, ret); + ret = dio_complete(dio, offset, ret, false); kfree(dio); } else BUG_ON(ret != -EIOCBQUEUED); Index: linux-2.6/fs/ext4/inode.c =================================================================== --- linux-2.6.orig/fs/ext4/inode.c 2010-06-22 09:48:37.249004508 +0200 +++ linux-2.6/fs/ext4/inode.c 2010-06-22 12:18:45.883255381 +0200 @@ -3775,7 +3775,8 @@ static ext4_io_end_t *ext4_init_io_end ( } static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset, - ssize_t size, void *private) + ssize_t size, void *private, int ret, + bool is_async) { ext4_io_end_t *io_end = iocb->private; struct workqueue_struct *wq; @@ -3784,7 +3785,7 @@ static void ext4_end_io_dio(struct kiocb /* if not async direct IO or dio with 0 bytes write, just return */ if (!io_end || !size) - return; + goto out; ext_debug("ext4_end_io_dio(): io_end 0x%p" "for inode %lu, iocb 0x%p, offset %llu, size %llu\n", @@ -3795,7 +3796,7 @@ static void ext4_end_io_dio(struct kiocb if (io_end->flag != EXT4_IO_UNWRITTEN){ ext4_free_io_end(io_end); iocb->private = NULL; - return; + goto out; } io_end->offset = offset; @@ -3812,6 +3813,9 @@ static void ext4_end_io_dio(struct kiocb list_add_tail(&io_end->list, &ei->i_completed_io_list); spin_unlock_irqrestore(&ei->i_completed_io_lock, flags); iocb->private = NULL; +out: + if (is_async) + aio_complete(iocb, ret, 0); } static void ext4_end_io_buffer_write(struct buffer_head *bh, int uptodate) Index: linux-2.6/fs/ocfs2/aops.c =================================================================== --- linux-2.6.orig/fs/ocfs2/aops.c 2010-06-22 09:48:37.259012749 +0200 +++ linux-2.6/fs/ocfs2/aops.c 2010-06-22 12:19:03.931005757 +0200 @@ -609,7 +609,9 @@ bail: static void ocfs2_dio_end_io(struct kiocb *iocb, loff_t offset, ssize_t bytes, - void *private) + void *private, + int ret, + bool is_async) { struct inode *inode = iocb->ki_filp->f_path.dentry->d_inode; int level; @@ -623,6 +625,9 @@ static void ocfs2_dio_end_io(struct kioc if (!level) up_read(&inode->i_alloc_sem); ocfs2_rw_unlock(inode, level); + + if (is_async) + aio_complete(iocb, ret, 0); } /* Index: linux-2.6/fs/xfs/linux-2.6/xfs_aops.c =================================================================== --- linux-2.6.orig/fs/xfs/linux-2.6/xfs_aops.c 2010-06-22 09:48:37.268012190 +0200 +++ linux-2.6/fs/xfs/linux-2.6/xfs_aops.c 2010-06-22 14:05:02.522005722 +0200 @@ -1599,7 +1599,9 @@ xfs_end_io_direct( struct kiocb *iocb, loff_t offset, ssize_t size, - void *private) + void *private, + int ret, + bool is_async) { xfs_ioend_t *ioend = iocb->private; @@ -1645,6 +1647,9 @@ xfs_end_io_direct( * against double-freeing. */ iocb->private = NULL; + + if (is_async) + aio_complete(iocb, ret, 0); } STATIC ssize_t Index: linux-2.6/fs/xfs/linux-2.6/xfs_aops.h =================================================================== --- linux-2.6.orig/fs/xfs/linux-2.6/xfs_aops.h 2010-06-22 09:48:37.278274238 +0200 +++ linux-2.6/fs/xfs/linux-2.6/xfs_aops.h 2010-06-22 09:49:12.388034051 +0200 @@ -37,6 +37,8 @@ typedef struct xfs_ioend { size_t io_size; /* size of the extent */ xfs_off_t io_offset; /* offset in the file */ struct work_struct io_work; /* xfsdatad work queue */ + struct kiocb *io_iocb; + int io_result; } xfs_ioend_t; extern const struct address_space_operations xfs_address_space_operations; Index: linux-2.6/include/linux/fs.h =================================================================== --- linux-2.6.orig/include/linux/fs.h 2010-06-22 09:49:07.188253984 +0200 +++ linux-2.6/include/linux/fs.h 2010-06-22 10:34:10.128005975 +0200 @@ -415,7 +415,8 @@ struct buffer_head; typedef int (get_block_t)(struct inode *inode, sector_t iblock, struct buffer_head *bh_result, int create); typedef void (dio_iodone_t)(struct kiocb *iocb, loff_t offset, - ssize_t bytes, void *private); + ssize_t bytes, void *private, int ret, + bool is_async); /* * Attribute flags. These should be or-ed together to figure out what From rolek@bokxing.nl Tue Jun 22 09:34:08 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5MEY7vZ241771 for ; Tue, 22 Jun 2010 09:34:08 -0500 X-ASG-Debug-ID: 1277217657-5f8502cb0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bork.lsof.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id B202E131A44E for ; Tue, 22 Jun 2010 07:40:57 -0700 (PDT) Received: from bork.lsof.org (bork.lsof.org [87.253.148.42]) by cuda.sgi.com with ESMTP id aL9tnQJEVNx3UBLi for ; Tue, 22 Jun 2010 07:40:57 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by bork.lsof.org (Postfix) with ESMTP id 2E072BB1F for ; Tue, 22 Jun 2010 16:36:45 +0200 (CEST) Received: from bork.lsof.org ([127.0.0.1]) by localhost (bork.lsof.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CXwukQLb4pLt for ; Tue, 22 Jun 2010 16:36:43 +0200 (CEST) Received: from bork.lsof.org (localhost [127.0.0.1]) by bork.lsof.org (Postfix) with ESMTP id E332FBA45 for ; Tue, 22 Jun 2010 16:36:42 +0200 (CEST) Message-ID: X-Mailer: http://www.courier-mta.org/cone/ From: Roel van Meer To: xfs@oss.sgi.com X-ASG-Orig-Subj: advice for repair after IO error on raid device Subject: advice for repair after IO error on raid device Date: Tue, 22 Jun 2010 16:36:42 +0200 Mime-Version: 1.0 Content-Type: text/plain; format=flowed; charset="US-ASCII" Content-Disposition: inline Content-Transfer-Encoding: 7bit X-Barracuda-Connect: bork.lsof.org[87.253.148.42] X-Barracuda-Start-Time: 1277217659 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33239 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hi list, I recently I had a failed disk in a raid6 setup, which resulted in an IO error, which in turn caused XFS to shut down with the messages below. I've seen on this list that incorrect use of xfs_repair might damage the fs even more, so I would like to ask for some advice on the best way to proceed. Currently I have unmounted the filesystem, replaced the failed disk and rebuilt the raid array. I am upgrading xfstools to their latest version (the current version is 2.9.8). Any hints on how to continue would be highly appreciated. Background: This is a Fedora Core 3 machine, with a vanilla 2.6.31 kernel. The raid setup consists of 24x2TB disks in a raid6 setup. We use it to store our backup snapshots and the entire volume is written to tape once a week. Thanks in advance, roel Jun 21 23:23:59 backup2 kernel: arcmsr6: abort device command of scsi id = 0 lun = 0 Jun 21 23:24:10 backup2 kernel: arcmsr6: ccb ='0xffff8800cb88ad40'????????????????????????????? isr got aborted command Jun 21 23:24:10 backup2 kernel: arcmsr6: isr get an illegal ccb command???????????????????????????????? done acb = '0xffff880231c90408'ccb = '0xffff8800cb88ad40' ccbacb = '0xffff880231c90408' startdone = 0x0 ccboutstandingcount = 1 Jun 21 23:24:10 backup2 kernel: sd 6:0:0:0: [sdb] Unhandled error code Jun 21 23:24:10 backup2 kernel: sd 6:0:0:0: [sdb] Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK Jun 21 23:24:10 backup2 kernel: end_request: I/O error, dev sdb, sector 12887056410 Jun 21 23:24:10 backup2 kernel: I/O error in filesystem ("sdb1") meta-data dev sdb1 block 0x30020dff8?????? ("xfs_trans_read_buf") error 5 buf count 4096 Jun 21 23:24:10 backup2 kernel: xfs_force_shutdown(sdb1,0x1) called from line 414 of file fs/xfs/xfs_trans_buf.c.? Return address = 0xffffffffa0168eaf Jun 21 23:24:10 backup2 kernel: xfs_force_shutdown(sdb1,0x2) called from line 811 of file fs/xfs/xfs_log.c.? Return address = 0xffffffffa015c35f Jun 21 23:24:10 backup2 kernel: Filesystem "sdb1": I/O Error Detected.? Shutting down filesystem: sdb1 Jun 21 23:24:10 backup2 kernel: Please umount the filesystem, and rectify the problem(s) Jun 21 23:24:20 backup2 kernel: Filesystem "sdb1": xfs_log_force: error 5 returned. Jun 21 23:24:50 backup2 kernel: Filesystem "sdb1": xfs_log_force: error 5 returned. Jun 21 23:25:20 backup2 kernel: Filesystem "sdb1": xfs_log_force: error 5 returned. From rolek@bokxing.nl Tue Jun 22 09:50:55 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5MEoth5242322 for ; Tue, 22 Jun 2010 09:50:55 -0500 X-ASG-Debug-ID: 1277218666-5f5f03780000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bork.lsof.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id ED468159FA4E for ; Tue, 22 Jun 2010 07:57:47 -0700 (PDT) Received: from bork.lsof.org (bork.lsof.org [87.253.148.42]) by cuda.sgi.com with ESMTP id h2Xpa1NquZvdN5pE for ; Tue, 22 Jun 2010 07:57:47 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by bork.lsof.org (Postfix) with ESMTP id F2A74BB1F for ; Tue, 22 Jun 2010 16:53:34 +0200 (CEST) Received: from bork.lsof.org ([127.0.0.1]) by localhost (bork.lsof.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id m-YZayhbAN58 for ; Tue, 22 Jun 2010 16:53:32 +0200 (CEST) Received: from bork.lsof.org (localhost [127.0.0.1]) by bork.lsof.org (Postfix) with ESMTP id B2458BA18 for ; Tue, 22 Jun 2010 16:53:32 +0200 (CEST) References: Message-ID: X-Mailer: http://www.courier-mta.org/cone/ From: Roel van Meer To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: advice for repair after IO error on raid device Subject: Re: advice for repair after IO error on raid device Date: Tue, 22 Jun 2010 16:53:32 +0200 Mime-Version: 1.0 Content-Type: text/plain; format=flowed; charset="US-ASCII" Content-Disposition: inline Content-Transfer-Encoding: 7bit X-Barracuda-Connect: bork.lsof.org[87.253.148.42] X-Barracuda-Start-Time: 1277218667 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33239 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Roel van Meer writes: > Currently I have unmounted the filesystem, replaced the failed disk and > rebuilt the raid array. I am upgrading xfstools to their latest version (the > current version is 2.9.8). Any hints on how to continue would be highly > appreciated. Trying to answer my own question. I _think_ this is the way to go: 1) Mount and unmount the fs, in order to replay the log. 2) Run xfs_repair -n 3) Run xfs_repair If someone could confirm (or reject) that, that would be great. (By the way, is it necessary to run xfs_repair with -n first? If not, are there advantages that would justify the extra time it takes?) Thanks again, roel > Jun 21 23:23:59 backup2 kernel: arcmsr6: abort device command of scsi id = 0 lun = 0 > Jun 21 23:24:10 backup2 kernel: arcmsr6: ccb ='0xffff8800cb88ad40'????????????????????????????? isr got aborted command > Jun 21 23:24:10 backup2 kernel: arcmsr6: isr get an illegal ccb command???????????????????????????????? done acb = '0xffff880231c90408'ccb = '0xffff8800cb88ad40' ccbacb = '0xffff880231c90408' startdone = 0x0 ccboutstandingcount = 1 > Jun 21 23:24:10 backup2 kernel: sd 6:0:0:0: [sdb] Unhandled error code > Jun 21 23:24:10 backup2 kernel: sd 6:0:0:0: [sdb] Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK > Jun 21 23:24:10 backup2 kernel: end_request: I/O error, dev sdb, sector 12887056410 > Jun 21 23:24:10 backup2 kernel: I/O error in filesystem ("sdb1") meta-data dev sdb1 block 0x30020dff8?????? ("xfs_trans_read_buf") error 5 buf count 4096 > Jun 21 23:24:10 backup2 kernel: xfs_force_shutdown(sdb1,0x1) called from line 414 of file fs/xfs/xfs_trans_buf.c.? Return address = 0xffffffffa0168eaf > Jun 21 23:24:10 backup2 kernel: xfs_force_shutdown(sdb1,0x2) called from line 811 of file fs/xfs/xfs_log.c.? Return address = 0xffffffffa015c35f > Jun 21 23:24:10 backup2 kernel: Filesystem "sdb1": I/O Error Detected.? Shutting down filesystem: sdb1 > Jun 21 23:24:10 backup2 kernel: Please umount the filesystem, and rectify the problem(s) > Jun 21 23:24:20 backup2 kernel: Filesystem "sdb1": xfs_log_force: error 5 returned. > Jun 21 23:24:50 backup2 kernel: Filesystem "sdb1": xfs_log_force: error 5 returned. > Jun 21 23:25:20 backup2 kernel: Filesystem "sdb1": xfs_log_force: error 5 returned. From mw@dermichi.com Tue Jun 22 10:27:22 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5MFRLLL243421 for ; Tue, 22 Jun 2010 10:27:22 -0500 X-ASG-Debug-ID: 1277220853-531701f10000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from firestarter.dermichi.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 3E02C15A07E8 for ; Tue, 22 Jun 2010 08:34:13 -0700 (PDT) Received: from firestarter.dermichi.com (firestarter.dermichi.com [78.41.115.230]) by cuda.sgi.com with ESMTP id mlzrTbMwSzdVBlsW for ; Tue, 22 Jun 2010 08:34:13 -0700 (PDT) Received: from cl-840.mbx-01.si.sixxs.net ([2001:15c0:65ff:347::2]) by firestarter.dermichi.com with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.72) (envelope-from ) id 1OR5QF-0002O1-N4 for xfs@oss.sgi.com; Tue, 22 Jun 2010 17:29:59 +0200 Message-ID: <4C20D6F6.5020208@dermichi.com> Date: Tue, 22 Jun 2010 17:29:58 +0200 From: Michael Weissenbacher User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.9) Gecko/20100423 Thunderbird/3.0.4 MIME-Version: 1.0 To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: advice for repair after IO error on raid device Subject: Re: advice for repair after IO error on raid device References: In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: firestarter.dermichi.com[78.41.115.230] X-Barracuda-Start-Time: 1277220854 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0109 1.0000 -1.9502 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.95 X-Barracuda-Spam-Status: No, SCORE=-1.95 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33241 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hi Roel! > Trying to answer my own question. I _think_ this is the way to go: > > 1) Mount and unmount the fs, in order to replay the log. > 2) Run xfs_repair -n > 3) Run xfs_repair > > If someone could confirm (or reject) that, that would be great. This is a sound plan, i always do a "xfs_repair -n" first. If you're lucky it will find no problems and you can skip step 3). If "xfs_repair -n" does find problems you can ask for more advice here. good luck, Michael From michael.monnerie@is.it-management.at Tue Jun 22 11:04:42 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5MG4f7s244572 for ; Tue, 22 Jun 2010 11:04:42 -0500 X-ASG-Debug-ID: 1277222841-6b0503790000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 36AE63F80F1 for ; Tue, 22 Jun 2010 09:07:21 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id hCZEorzFawLcTsDY for ; Tue, 22 Jun 2010 09:07:21 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id 037CD17D for ; Tue, 22 Jun 2010 18:07:19 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id B775A83C828 for ; Tue, 22 Jun 2010 18:06:58 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: advice for repair after IO error on raid device Subject: Re: advice for repair after IO error on raid device Date: Tue, 22 Jun 2010 18:07:18 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) References: In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart30416575.0clGQv9Z8g"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201006221807.19191@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1277222842 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0040 1.0000 -1.9951 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.00 X-Barracuda-Spam-Status: No, SCORE=-2.00 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33244 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart30416575.0clGQv9Z8g Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable On Dienstag, 22. Juni 2010 Roel van Meer wrote: > Jun 21 23:23:59 backup2 kernel: arcmsr6: abort device command of scsi > id =3D 0 lun =3D 0 Jun 21 23:24:10 backup2 kernel: arcmsr6: ccb > =3D'0xffff8800cb88ad40'????????????????????????????? isr got aborted This does not sound like a simple failed disk. We also use Areca RAID=20 controllers, they are great, and a failed disk does *never* influence=20 the running system - that's what you have the RAID controller for, after=20 all. You only receive an e-mail from the controller about the disabled=20 disk. The "isr got aborted" sounds like a driver problem, please report that=20 log snipped to areca support so they can help you (I'd be interested in=20 the results too - please tell me per PM once you know). The address is support@areca.com.tw, and they tend to answer quickly and good. =2D-=20 mit freundlichen Gr=FCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=E4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart30416575.0clGQv9Z8g Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwg37cACgkQzhSR9xwSCbTFrwCg1azEZLuzkhEXZ5cDImApenaJ WswAn2yFageL7Hh6SK+mGkLXE/H/T3QS =SCPJ -----END PGP SIGNATURE----- --nextPart30416575.0clGQv9Z8g-- From eflorac@intellique.com Tue Jun 22 11:29:14 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5MGTEfA245888 for ; Tue, 22 Jun 2010 11:29:14 -0500 X-ASG-Debug-ID: 1277224562-106801740000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp4-g21.free.fr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 2C94315A080A for ; Tue, 22 Jun 2010 09:36:04 -0700 (PDT) Received: from smtp4-g21.free.fr (smtp4-g21.free.fr [212.27.42.4]) by cuda.sgi.com with ESMTP id c1NgOfD6IoeGcHOW for ; Tue, 22 Jun 2010 09:36:04 -0700 (PDT) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) by smtp4-g21.free.fr (Postfix) with ESMTP id D36DA4C8034; Tue, 22 Jun 2010 18:31:46 +0200 (CEST) Date: Tue, 22 Jun 2010 18:31:54 +0200 From: Emmanuel Florac To: Roel van Meer Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: advice for repair after IO error on raid device Subject: Re: advice for repair after IO error on raid device Message-ID: <20100622183154.24e84e0d@harpe.intellique.com> In-Reply-To: References: Organization: Intellique X-Mailer: Claws Mail 3.7.3 (GTK+ 2.16.6; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: smtp4-g21.free.fr[212.27.42.4] X-Barracuda-Start-Time: 1277224566 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33247 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Le Tue, 22 Jun 2010 16:53:32 +0200 Roel van Meer =E9crivait: > If someone could confirm (or reject) that, that would be great. Confirmation granted. > (By the way, is it necessary to run xfs_repair with -n first? If not, > are there advantages that would justify the extra time it takes?) It will indicate what modifications he would have done, before actually doing them... Like "inode 038953095 corrupted, would remove it" then "directory not connected, would move content moved to lost+found" I found that usually xfs_repair is quit quick and never takes much more than a couple of minutes (even on very big arrays) so you have no valid reason to skip the "xfs_repair -n" part. It may be nice to dump the filesystem metadata with xfs_metadump prior to using xfs_repair too. In the case where the repair's really gone bad, you could at least revert to the prior less broken state using xfs_mdrestore... --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From eflorac@intellique.com Tue Jun 22 11:33:39 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5MGXddg246040 for ; Tue, 22 Jun 2010 11:33:39 -0500 X-ASG-Debug-ID: 1277224827-11c901e50000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp4-g21.free.fr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 5B0C815A08CF for ; Tue, 22 Jun 2010 09:40:29 -0700 (PDT) Received: from smtp4-g21.free.fr (smtp4-g21.free.fr [212.27.42.4]) by cuda.sgi.com with ESMTP id q9fNyOazlhG2ojhK for ; Tue, 22 Jun 2010 09:40:29 -0700 (PDT) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) by smtp4-g21.free.fr (Postfix) with ESMTP id 52F0E4C8177; Tue, 22 Jun 2010 18:36:12 +0200 (CEST) Date: Tue, 22 Jun 2010 18:35:58 +0200 From: Emmanuel Florac To: Michael Monnerie Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: advice for repair after IO error on raid device Subject: Re: advice for repair after IO error on raid device Message-ID: <20100622183558.537ae596@harpe.intellique.com> In-Reply-To: <201006221807.19191@zmi.at> References: <201006221807.19191@zmi.at> Organization: Intellique X-Mailer: Claws Mail 3.7.3 (GTK+ 2.16.6; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/ZOw0iRExni2w_Oc/dBNby8U"; protocol="application/pgp-signature" X-Barracuda-Connect: smtp4-g21.free.fr[212.27.42.4] X-Barracuda-Start-Time: 1277224832 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33247 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --Sig_/ZOw0iRExni2w_Oc/dBNby8U Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Le Tue, 22 Jun 2010 18:07:18 +0200 Michael Monnerie =E9crivait: > The "isr got aborted" sounds like a driver problem You bet, isr stands for "interrupt system routine", apparently the driver (or the firmware) seriously shat its pants. Maybe a firmware and/or kernel upgrade would be good too. --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ --Sig_/ZOw0iRExni2w_Oc/dBNby8U Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkwg5m4ACgkQX3jQXNUicVbvPQCgvZHEDmCeeTzgr1E8psqeHXna Z+IAoMh3Ip+GmzgbXxdOBNjKks1QSe/N =QSaf -----END PGP SIGNATURE----- --Sig_/ZOw0iRExni2w_Oc/dBNby8U-- From klonatos@ics.forth.gr Wed Jun 23 02:35:11 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5N7ZBo4013797 for ; Wed, 23 Jun 2010 02:35:11 -0500 X-ASG-Debug-ID: 1277278671-63cf01710000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailgate.ics.forth.gr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 955B53FA98D for ; Wed, 23 Jun 2010 00:37:51 -0700 (PDT) Received: from mailgate.ics.forth.gr (mailgate.ics.forth.gr [139.91.1.2]) by cuda.sgi.com with ESMTP id jgzRxlOkUUXXl43z for ; Wed, 23 Jun 2010 00:37:51 -0700 (PDT) Received: from av1.ics.forth.gr (av1-in.ics.forth.gr [139.91.1.71]) by mailgate.ics.forth.gr (8.14.3/ICS-FORTH/V10-1.8-GATE) with ESMTP id o5N7bl7L027250 for ; Wed, 23 Jun 2010 10:37:50 +0300 (EEST) X-AuditID: 8b5b9d47-b7bd0ae000003df0-1a-4c21b9cb5733 Received: from enigma.ics.forth.gr (webmail.ics.forth.gr [139.91.1.30]) by av1.ics.forth.gr (SMTP Outbound / FORTH / ICS) with SMTP id C5.BD.15856.BC9B12C4; Wed, 23 Jun 2010 10:37:47 +0300 (EEST) Received: from [139.91.92.13] ([139.91.92.13]) (authenticated bits=0) by enigma.ics.forth.gr (8.14.3//ICS-FORTH/V10.3.0C-EXTNULL-SSL-SASL) with ESMTP id o5N7blIa023547 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 23 Jun 2010 10:37:47 +0300 Message-ID: <4C21B9AF.9010307@ics.forth.gr> Date: Wed, 23 Jun 2010 10:37:19 +0300 From: Yannis Klonatos User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.10) Gecko/20100512 Thunderbird/3.0.5 MIME-Version: 1.0 To: xfs@oss.sgi.com X-ASG-Orig-Subj: XFS peculiar behavior Subject: XFS peculiar behavior Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: AAAAAA== X-j-chkmail-Score: MSGID : 4C21B9CC.000 on mailgate : j-chkmail score : . : R=. U=. O=. B=0.000 -> S=0.000 X-ICS-JCHK-SCL: Ham X-Barracuda-Connect: mailgate.ics.forth.gr[139.91.1.2] X-Barracuda-Start-Time: 1277278672 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0004 1.0000 -2.0187 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33306 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hi all! I have come across the following peculiar behavior in XFS and i would appreciate any information anyone could provide. In our lab we have a system that has twelve 500GByte hard disks (total capacity 6TByte), connected to an Areca (ARC-1680D-IX-12) SAS storage controller. The disks are configured as a RAID-0 device. Then I create a clean XFS filesystem on top of the raid volume, using the whole capacity. We use this test-setup to measure performance improvement for a TPC-H experiment. We copy the database over the clean XFS filesystem using the cp utility. The database used in our experiments is 56GBytes in size (data + indices). The problem is that i have noticed that XFS may - not all times - split a table over a large disk distance. For example in one run i have noticed that a file of 13GByte is split over a 4,7TByte distance (I calculate this distance by subtracting the final block used for the file with the first one. The two disk blocks values are acquired using the FIBMAP ioctl). Is there some reasoning behind this (peculiar) behavior? I would expect that since the underlying storage is so large, and the dataset is so small, XFS would try to minimize disk seeks and thus place the file sequentially in disk. Furthermore, I understand that there may be some blocks left unused by XFS between subsequent file blocks used in order to handle any write appends that may come afterward. But i wouldn't expect such a large splitting of a single file. Any help? Thanks in advance, Yannis Klonatos From michael.monnerie@is.it-management.at Wed Jun 23 05:13:40 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_43 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5NADesW018807 for ; Wed, 23 Jun 2010 05:13:40 -0500 X-ASG-Debug-ID: 1277288436-018e00ae0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 0A07114AE620 for ; Wed, 23 Jun 2010 03:20:36 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id nAFXF54qEU2CXcRF for ; Wed, 23 Jun 2010 03:20:36 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id 3756D17E for ; Wed, 23 Jun 2010 12:16:19 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id E53A083C828 for ; Wed, 23 Jun 2010 12:15:56 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: XFS peculiar behavior Subject: Re: XFS peculiar behavior Date: Wed, 23 Jun 2010 12:16:18 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) References: <4C21B9AF.9010307@ics.forth.gr> In-Reply-To: <4C21B9AF.9010307@ics.forth.gr> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart2530792.x7bXYLASVb"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201006231216.18514@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1277288437 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0385 1.0000 -1.7727 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.77 X-Barracuda-Spam-Status: No, SCORE=-1.77 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33317 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart2530792.x7bXYLASVb Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable On Mittwoch, 23. Juni 2010 Yannis Klonatos wrote: > The problem is that i have noticed that XFS may - not all times=20 > - split a table over a large disk distance. =20 Interesting. I have no idea why this happens and would be interested in=20 investigation too. As a quick help, maybe using allocsize=3D1G in the xfs mount options would= =20 help? How many AGs does the filesystem have?=20 And which version of mkfs.xfs do you use? Newer xfsprogs create the disk with 4 AGs per default, maybe that=20 influences the allocation order? =2D-=20 mit freundlichen Gr=FCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=E4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart2530792.x7bXYLASVb Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwh3vIACgkQzhSR9xwSCbRWOQCcCcwPVMcTPkN6Jf8QIO8qL9bp 7K4AnijlonxfWFryde24uKG6WXtPzpWJ =Q0eC -----END PGP SIGNATURE----- --nextPart2530792.x7bXYLASVb-- From andi@firstfloor.org Wed Jun 23 05:21:54 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5NALqj0019189 for ; Wed, 23 Jun 2010 05:21:54 -0500 X-ASG-Debug-ID: 1277288926-01ae00c00000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from one.firstfloor.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id AA78214AE670 for ; Wed, 23 Jun 2010 03:28:47 -0700 (PDT) Received: from one.firstfloor.org (one.firstfloor.org [213.235.205.2]) by cuda.sgi.com with ESMTP id KINHPGOSIWM65yr0 for ; Wed, 23 Jun 2010 03:28:47 -0700 (PDT) Received: from basil.firstfloor.org (p5B3CB499.dip0.t-ipconnect.de [91.60.180.153]) by one.firstfloor.org (Postfix) with ESMTP id 434F51A980C3; Wed, 23 Jun 2010 12:24:28 +0200 (CEST) Received: by basil.firstfloor.org (Postfix, from userid 1000) id 4CDAEB1F52; Wed, 23 Jun 2010 12:24:27 +0200 (CEST) From: Andi Kleen To: Yannis Klonatos Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: XFS peculiar behavior Subject: Re: XFS peculiar behavior References: <4C21B9AF.9010307@ics.forth.gr> Date: Wed, 23 Jun 2010 12:24:27 +0200 In-Reply-To: <4C21B9AF.9010307@ics.forth.gr> (Yannis Klonatos's message of "Wed, 23 Jun 2010 10:37:19 +0300") Message-ID: <87bpb2avxg.fsf@basil.nowhere.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Barracuda-Connect: one.firstfloor.org[213.235.205.2] X-Barracuda-Start-Time: 1277288927 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0169 1.0000 -1.9110 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.91 X-Barracuda-Spam-Status: No, SCORE=-1.91 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33317 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Yannis Klonatos writes: > The problem is that i have noticed that XFS may - not all Why is that a problem? > times - split a table over a large disk distance. For > example in one run i have noticed that a file of 13GByte is split over > a 4,7TByte distance (I calculate this distance > by subtracting the final block used for the file with the first > one. The two disk blocks values are acquired using the > FIBMAP ioctl). I don't know if it's the only reason, but XFS does a lot of data structure locking and updates per allocation group, so spreading to multiple AGs gives better scalability to many CPUs. Also I suppose it's good to avoid hot spots on the underlying device. -Andi -- ak@linux.intel.com -- Speaking for myself only. From michael.monnerie@is.it-management.at Wed Jun 23 10:02:17 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5NF2HTT028277 for ; Wed, 23 Jun 2010 10:02:17 -0500 X-ASG-Debug-ID: 1277305754-0c0200ad0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 1841515A283A for ; Wed, 23 Jun 2010 08:09:14 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id zHORR1eQNQKmIqLM for ; Wed, 23 Jun 2010 08:09:14 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id 3859917E for ; Wed, 23 Jun 2010 17:04:56 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id 5FA7183C828 for ; Wed, 23 Jun 2010 17:04:33 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: XFS peculiar behavior Subject: Re: XFS peculiar behavior Date: Wed, 23 Jun 2010 17:04:55 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) References: <4C21B9AF.9010307@ics.forth.gr> <87bpb2avxg.fsf@basil.nowhere.org> In-Reply-To: <87bpb2avxg.fsf@basil.nowhere.org> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart58065848.Qv27cxW9nv"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201006231704.55273@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1277305755 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0188 1.0000 -1.8987 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.90 X-Barracuda-Spam-Status: No, SCORE=-1.90 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33337 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart58065848.Qv27cxW9nv Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable On Mittwoch, 23. Juni 2010 Andi Kleen wrote: > I don't know if it's the only reason, but XFS does a lot of data > structure locking and updates per allocation group, so spreading > to multiple AGs gives better scalability to many CPUs. This only helps if there are metadata operations, right? So in the case=20 where you have one big database "file" of 50GB, it should be ordered=20 sector-by-sector to get the maximum performance, and minimize disk-head=20 movement. And I don't believe XFS would scatter a single big file around several=20 AGs, as far as I know even all files within the same dir are grouped=20 within a single AG. The AG "scattering" is done for separate dirs only. =20 > Also I suppose it's good to avoid hot spots on the underlying=20 > device. A database file is staying on the same place "forever" and will be=20 overwritten all the time, so it doesn't matter for the "hot spot" case. =2D-=20 mit freundlichen Gr=FCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=E4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart58065848.Qv27cxW9nv Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwiIpcACgkQzhSR9xwSCbT1OwCcC5gjq/PQFCfsUTTTwUEDqn20 fGwAoOjEw63yGcXpOiiaHoZbE6lC0k9R =Qi2/ -----END PGP SIGNATURE----- --nextPart58065848.Qv27cxW9nv-- From sandeen@sandeen.net Wed Jun 23 11:19:05 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5NGJ5nx031157 for ; Wed, 23 Jun 2010 11:19:05 -0500 X-ASG-Debug-ID: 1277310106-5bbe01e70000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.sandeen.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 340FB152DC16 for ; Wed, 23 Jun 2010 09:21:46 -0700 (PDT) Received: from mail.sandeen.net (64-131-60-146.usfamily.net [64.131.60.146]) by cuda.sgi.com with ESMTP id ZPFkqxaLTzRAvvxN for ; Wed, 23 Jun 2010 09:21:46 -0700 (PDT) Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sandeen.net (Postfix) with ESMTP id D327E4968913; Wed, 23 Jun 2010 11:21:45 -0500 (CDT) Message-ID: <4C223499.4050502@sandeen.net> Date: Wed, 23 Jun 2010 11:21:45 -0500 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.24 (Macintosh/20100228) MIME-Version: 1.0 To: Yannis Klonatos CC: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: XFS peculiar behavior Subject: Re: XFS peculiar behavior References: <4C21B9AF.9010307@ics.forth.gr> In-Reply-To: <4C21B9AF.9010307@ics.forth.gr> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: 64-131-60-146.usfamily.net[64.131.60.146] X-Barracuda-Start-Time: 1277310107 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33342 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Yannis Klonatos wrote: > Hi all! > > I have come across the following peculiar behavior in XFS and i > would appreciate any information anyone > could provide. > In our lab we have a system that has twelve 500GByte hard disks > (total capacity 6TByte), connected to an > Areca (ARC-1680D-IX-12) SAS storage controller. The disks are configured > as a RAID-0 device. Then I create > a clean XFS filesystem on top of the raid volume, using the whole > capacity. We use this test-setup to measure > performance improvement for a TPC-H experiment. We copy the database > over the clean XFS filesystem using the > cp utility. The database used in our experiments is 56GBytes in size > (data + indices). > The problem is that i have noticed that XFS may - not all times > - split a table over a large disk distance. For > example in one run i have noticed that a file of 13GByte is split over a > 4,7TByte distance (I calculate this distance > by subtracting the final block used for the file with the first one. The > two disk blocks values are acquired using the > FIBMAP ioctl). xfs_bmap output would be a lot nicer. Maybe you can paste that here to show exactly what the layout is. -Eric > Is there some reasoning behind this (peculiar) behavior? I would > expect that since the underlying storage is so > large, and the dataset is so small, XFS would try to minimize disk seeks > and thus place the file sequentially in disk. > Furthermore, I understand that there may be some blocks left unused by > XFS between subsequent file blocks used > in order to handle any write appends that may come afterward. But i > wouldn't expect such a large splitting of a single > file. > Any help? > > Thanks in advance, > Yannis Klonatos From michael.monnerie@is.it-management.at Wed Jun 23 13:30:14 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5NIUD3n035197 for ; Wed, 23 Jun 2010 13:30:14 -0500 X-ASG-Debug-ID: 1277317973-6e4f01390000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 6F3F3152E608 for ; Wed, 23 Jun 2010 11:32:53 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id FXEFAO2QL8y28Fbq for ; Wed, 23 Jun 2010 11:32:53 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id 2037F17E; Wed, 23 Jun 2010 20:32:52 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id EF8A483C828; Wed, 23 Jun 2010 20:32:28 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com, Eric Sandeen X-ASG-Orig-Subj: Re: xfs_repair 3.1.2 crashing Subject: Re: xfs_repair 3.1.2 crashing Date: Wed, 23 Jun 2010 20:32:46 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) References: <201006101306.07587@zmi.at> <4C12E520.6040008@sandeen.net> <201006121241.52336@zmi.at> In-Reply-To: <201006121241.52336@zmi.at> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart4180749.6qIoClEGSH"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201006232032.51016@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1277317974 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33349 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart4180749.6qIoClEGSH Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable On Samstag, 12. Juni 2010 Michael Monnerie wrote: > openSUSE 11.2 with it's latest kernel, 2.6.31.12-0.2-desktop Any news here? I'd need a fix, is there a chance to get back the contents o= f this file? [212428.619676] Filesystem "dm-0": corrupt inode 2267035928 ((a)extents =3D= 7). Unmount and run xfs_repair. = = =20 [212428.619681] ffff8800f3a9a800: 49 4e 81 fc 02 02 00 00 00 00 04 e5 00 00= 00 64 IN.............d = = =20 [212428.619686] Filesystem "dm-0": XFS internal error xfs_iformat_extents(1= ) at line 558 of file /usr/src/packages/BUILD/kernel-xen-2.6.31.12/linux-2.= 6.31/fs/xfs/xfs_inode.c. Caller 0xffffffffa019c44d [212428.619688] [212428.619691] Pid: 13006, comm: ls Not tainted 2.6.31.12-0.2-xen #1 [212428.619694] Call Trace: [212428.619707] [] try_stack_unwind+0x189/0x1b0 [212428.619714] [] dump_trace+0xa6/0x1e0 [212428.619718] [] show_trace_log_lvl+0x64/0x90 [212428.619722] [] show_trace+0x23/0x40 [212428.619727] [] dump_stack+0x81/0x9e [212428.619761] [] xfs_error_report+0x5a/0x70 [xfs] [212428.619810] [] xfs_corruption_error+0x6c/0x90 [xfs] [212428.619853] [] xfs_iformat_extents+0x234/0x280 [xfs] [212428.619903] [] xfs_iformat+0x28d/0x5a0 [xfs] [212428.619951] [] xfs_iread+0x182/0x1c0 [xfs] [212428.620000] [] xfs_iget_cache_miss+0x78/0x200 [xfs] [212428.620046] [] xfs_iget+0x129/0x1d0 [xfs] [212428.620094] [] xfs_lookup+0xce/0x100 [xfs] [212428.620158] [] xfs_vn_lookup+0x6c/0xc0 [xfs] [212428.620220] [] real_lookup+0x102/0x180 [212428.620225] [] do_lookup+0xd0/0x100 [212428.620229] [] __link_path_walk+0x7f8/0xf40 [212428.620233] [] path_walk+0x66/0xd0 [212428.620237] [] do_path_lookup+0x6b/0xb0 [212428.620240] [] user_path_at+0x61/0xc0 [212428.620244] [] vfs_fstatat+0x41/0x90 [212428.620248] [] vfs_lstat+0x2c/0x50 [212428.620251] [] sys_newlstat+0x2e/0x70 [212428.620254] [] system_call_fastpath+0x16/0x1b [212428.620263] [<00007fcb58264e65>] 0x7fcb58264e65 =2D-=20 mit freundlichen Gr=C3=BCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=C3=A4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart4180749.6qIoClEGSH Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwiU1IACgkQzhSR9xwSCbRwVACeNLi96zjHR8F82fmeWN5fykOi LIcAoMlZsaVB/awpejS9hjQ1b9P7XrtE =99i8 -----END PGP SIGNATURE----- --nextPart4180749.6qIoClEGSH-- From greg@kroah.com Wed Jun 23 15:35:22 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.1 required=5.0 tests=BAYES_00,SUBJ_ATTENTION autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5NKZMBm038549 for ; Wed, 23 Jun 2010 15:35:22 -0500 X-ASG-Debug-ID: 1277325483-579f037d0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from coco.kroah.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 388C83FD563 for ; Wed, 23 Jun 2010 13:38:03 -0700 (PDT) Received: from coco.kroah.org (kroah.org [198.145.64.141]) by cuda.sgi.com with ESMTP id XlA8TvU7XVy8q4Fj for ; Wed, 23 Jun 2010 13:38:03 -0700 (PDT) Received: from localhost (c-24-16-163-131.hsd1.wa.comcast.net [24.16.163.131]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by coco.kroah.org (Postfix) with ESMTPSA id A200848A3F; Wed, 23 Jun 2010 13:38:02 -0700 (PDT) Date: Wed, 23 Jun 2010 13:36:53 -0700 From: Greg KH To: Dave Chinner Cc: Andrew Morton , linux-fsdevel@vger.kernel.org, stable@kernel.org, torvalds@linux-foundation.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [stable] [PATCH 1/3] writeback: pay attention to wbc->nr_to_write in write_cache_pages Subject: Re: [stable] [PATCH 1/3] writeback: pay attention to wbc->nr_to_write in write_cache_pages Message-ID: <20100623203653.GB2281@kroah.com> References: <1276043840-1946-1-git-send-email-david@fromorbit.com> <1276043840-1946-2-git-send-email-david@fromorbit.com> <20100609140942.6799c84a.akpm@linux-foundation.org> <20100609225804.GK7869@dastard> <20100610000811.GL7869@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100610000811.GL7869@dastard> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: kroah.org[198.145.64.141] X-Barracuda-Start-Time: 1277325484 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33357 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu, Jun 10, 2010 at 10:08:11AM +1000, Dave Chinner wrote: > On Thu, Jun 10, 2010 at 08:58:04AM +1000, Dave Chinner wrote: > > On Wed, Jun 09, 2010 at 02:09:42PM -0700, Andrew Morton wrote: > > > On Wed, 9 Jun 2010 10:37:18 +1000 > > > Dave Chinner wrote: > > > > > > > From: Dave Chinner > > > > > > > > If a filesystem writes more than one page in ->writepage, write_cache_pages > > > > fails to notice this and continues to attempt writeback when wbc->nr_to_write > > > > has gone negative - this trace was captured from XFS: > > > > > > > > > > > > wbc_writeback_start: towrt=1024 > > > > wbc_writepage: towrt=1024 > > > > wbc_writepage: towrt=0 > > > > wbc_writepage: towrt=-1 > > > > wbc_writepage: towrt=-5 > > > > wbc_writepage: towrt=-21 > > > > wbc_writepage: towrt=-85 > > > > > > > > This has adverse effects on filesystem writeback behaviour. write_cache_pages() > > > > needs to terminate after a certain number of pages are written, not after a > > > > certain number of calls to ->writepage are made. This is a regression > > > > introduced by 17bc6c30cf6bfffd816bdc53682dd46fc34a2cf4 ("vfs: Add > > > > no_nrwrite_index_update writeback control flag"), but cannot be reverted > > > > directly due to subsequent bug fixes that have gone in on top of it. > > > > > > Might be needed in -stable. Unfortunately the most important piece of > > > information which is needed to make that decision was cunningly hidden > > > from us behind the vague-to-the-point-of-uselessness term "adverse > > > effects". > > > > > > _what_ "adverse effects"?? > > > > Depends on how the specific filesystem handles a negative > > nr_to_write, doesn't it? I can't speak for the exact effect on > > anything other than XFS except to say that most ->write_page > > implemetnations don't handle the wbc->nr_to_write < 0 specifically... > > > > For XFS, it results in increased CPU usage because it triggers > > page-at-a-time allocation (i.e no clustering), which increases > > overhead in the elveator due to merging requirements of single page > > bios and increased fragmentation due to small interleaved > > allocations on concurrent writeback workloads. Effectively it causes > > accelerated aging of XFS filesystems... > > Sorry, forgot to address the -stable part of the question. > > This series is dependent on the ext4 change to use it's own > writepage going into -stable first. (i.e. > 8e48dcfbd7c0892b4cfd064d682cc4c95a29df32 "ext4: Use our own > write_cache_pages()"). > > I'd suggest that all 4 patches (the ext4 patch and the three in this > series) should go back to 2.6.34-stable due to the long term affect > this writeback bug could have on XFS filesystems, and the sync > taking too long problem has been fairly widely reported since at > least .32... Ok, can someone please tell me the git commit ids that need to be applied to the -stable trees? thanks, greg k-h From SRS0+sD/0+23+fromorbit.com=david@internode.on.net Wed Jun 23 18:14:23 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5NNENgP044595 for ; Wed, 23 Jun 2010 18:14:23 -0500 X-ASG-Debug-ID: 1277335282-6eb701df0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id EEF53B5F908 for ; Wed, 23 Jun 2010 16:21:22 -0700 (PDT) Received: from mail.internode.on.net (bld-mail17.adl2.internode.on.net [150.101.137.102]) by cuda.sgi.com with ESMTP id kaMPlA2mlL8K2XMj for ; Wed, 23 Jun 2010 16:21:22 -0700 (PDT) Received: from dastard (unverified [121.44.96.63]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 28852130-1927428 for multiple; Thu, 24 Jun 2010 08:47:02 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1ORZBk-0007CW-Sj; Thu, 24 Jun 2010 09:17:00 +1000 Date: Thu, 24 Jun 2010 09:17:00 +1000 From: Dave Chinner To: Yannis Klonatos Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: XFS peculiar behavior Subject: Re: XFS peculiar behavior Message-ID: <20100623231700.GP6590@dastard> References: <4C21B9AF.9010307@ics.forth.gr> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C21B9AF.9010307@ics.forth.gr> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail17.adl2.internode.on.net[150.101.137.102] X-Barracuda-Start-Time: 1277335283 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33368 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed, Jun 23, 2010 at 10:37:19AM +0300, Yannis Klonatos wrote: > Hi all! > > I have come across the following peculiar behavior in XFS > and i would appreciate any information anyone > could provide. > In our lab we have a system that has twelve 500GByte hard > disks (total capacity 6TByte), connected to an > Areca (ARC-1680D-IX-12) SAS storage controller. The disks are > configured as a RAID-0 device. Then I create > a clean XFS filesystem on top of the raid volume, using the whole > capacity. We use this test-setup to measure > performance improvement for a TPC-H experiment. We copy the database > over the clean XFS filesystem using the > cp utility. The database used in our experiments is 56GBytes in size > (data + indices). > The problem is that i have noticed that XFS may - not all > times - split a table over a large disk distance. For > example in one run i have noticed that a file of 13GByte is split > over a 4,7TByte distance (I calculate this distance > by subtracting the final block used for the file with the first one. > The two disk blocks values are acquired using the > FIBMAP ioctl). > Is there some reasoning behind this (peculiar) behavior? I > would expect that since the underlying storage is so > large, and the dataset is so small, XFS would try to minimize disk > seeks and thus place the file sequentially in disk. > Furthermore, I understand that there may be some blocks left unused > by XFS between subsequent file blocks used > in order to handle any write appends that may come afterward. But i > wouldn't expect such a large splitting of a single > file. > Any help? The reasons for it being split are wide and varied. We need more information before trying to determie the reason. The output of "xfs_info " will tell us your filesystem geometry and the output of xfs_bmap will tell us exactly how it was laid out on disk. These are needed to see exactly what the problem is. Did you copy the file alone, with others, or while there were other write operations going on in the background? was it a pristine filesystem that you copied it to? If so, what was the directory structure created before/by the copy? Also, the kernel version you are running, and the version of xfsprogs you have installed (xfs_info -V) will help us determine if you are tripping any known bugs... Cheers, Dave. -- Dave Chinner david@fromorbit.com From rolek@bokxing.nl Thu Jun 24 03:26:01 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5O8Q1Vt075539 for ; Thu, 24 Jun 2010 03:26:01 -0500 X-ASG-Debug-ID: 1277368122-56e601a20000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bork.lsof.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 75A171A87D06 for ; Thu, 24 Jun 2010 01:28:42 -0700 (PDT) Received: from bork.lsof.org (bork.lsof.org [87.253.148.42]) by cuda.sgi.com with ESMTP id C9DVeRlLGxmDW0F1 for ; Thu, 24 Jun 2010 01:28:42 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by bork.lsof.org (Postfix) with ESMTP id AEA21BBC7 for ; Thu, 24 Jun 2010 10:28:41 +0200 (CEST) Received: from bork.lsof.org ([127.0.0.1]) by localhost (bork.lsof.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id qIFOXtN6uTVN for ; Thu, 24 Jun 2010 10:28:39 +0200 (CEST) Received: from bork.lsof.org (localhost [127.0.0.1]) by bork.lsof.org (Postfix) with ESMTP id B748ABBC6 for ; Thu, 24 Jun 2010 10:28:39 +0200 (CEST) References: <201006221807.19191@zmi.at> Message-ID: X-Mailer: http://www.courier-mta.org/cone/ From: Roel van Meer To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: advice for repair after IO error on raid device [SOLVED] Subject: Re: advice for repair after IO error on raid device [SOLVED] Date: Thu, 24 Jun 2010 10:28:39 +0200 Mime-Version: 1.0 Content-Type: text/plain; format=flowed; charset="US-ASCII" Content-Disposition: inline Content-Transfer-Encoding: 7bit X-Barracuda-Connect: bork.lsof.org[87.253.148.42] X-Barracuda-Start-Time: 1277368123 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0002 1.0000 -2.0200 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33404 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hi list, just a quick follow-up: xfs_repair didn't find any trouble and everything is up and running again like a charm. Always nice to be able to post good news. Thanks for your help and thanks for the great FS! Regards, roel From sws@stud.pam.szczecin.pl Thu Jun 24 03:59:27 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5O8xRWk094463 for ; Thu, 24 Jun 2010 03:59:27 -0500 X-ASG-Debug-ID: 1277370128-4d4b02c30000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from stud.pam.szczecin.pl (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 0812D1E14690 for ; Thu, 24 Jun 2010 02:02:08 -0700 (PDT) Received: from stud.pam.szczecin.pl (stud.pam.szczecin.pl [212.14.5.154]) by cuda.sgi.com with ESMTP id b5Eb4AllLTGuELbb for ; Thu, 24 Jun 2010 02:02:08 -0700 (PDT) Received: from sws (helo=localhost) by stud.pam.szczecin.pl with local-esmtp (Exim 4.63) (envelope-from ) id 1ORiJu-0003IC-KE for xfs@oss.sgi.com; Thu, 24 Jun 2010 11:02:02 +0200 Date: Thu, 24 Jun 2010 11:02:02 +0200 (CEST) From: Stanczak Slawomir To: xfs@oss.sgi.com X-ASG-Orig-Subj: xfs_quota report problem Subject: xfs_quota report problem Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Barracuda-Connect: stud.pam.szczecin.pl[212.14.5.154] X-Barracuda-Start-Time: 1277370129 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33406 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hi, I use xfs on my Debian Linux system. I have one question. How can I display users with exceeded soft blocks limit only? I can do: xfs_quota -x -c report /home | grep day xfs_quota -x -c report /home | grep day | awk '{print $1}' but the solution isn't a good idea. Have you any other idea? Thanks for your help Best regards Slawomir Stanczak From klonatos@ics.forth.gr Thu Jun 24 09:17:23 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_83 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5OEHMxm115772 for ; Thu, 24 Jun 2010 09:17:23 -0500 X-ASG-Debug-ID: 1277389189-798f02b40000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailgate.ics.forth.gr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 69DC74001E7 for ; Thu, 24 Jun 2010 07:19:49 -0700 (PDT) Received: from mailgate.ics.forth.gr (mailgate.ics.forth.gr [139.91.1.2]) by cuda.sgi.com with ESMTP id ovhzO8hxAvWK1J7A for ; Thu, 24 Jun 2010 07:19:49 -0700 (PDT) Received: from av1.ics.forth.gr (av1-in.ics.forth.gr [139.91.1.71]) by mailgate.ics.forth.gr (8.14.3/ICS-FORTH/V10-1.8-GATE) with ESMTP id o5OEBwkm015532; Thu, 24 Jun 2010 17:12:00 +0300 (EEST) X-AuditID: 8b5b9d47-b7bd0ae000003df0-4f-4c2367ae8681 Received: from enigma.ics.forth.gr (webmail.ics.forth.gr [139.91.1.30]) by av1.ics.forth.gr (SMTP Outbound / FORTH / ICS) with SMTP id 10.73.15856.EA7632C4; Thu, 24 Jun 2010 17:11:58 +0300 (EEST) Received: from [139.91.92.13] ([139.91.92.13]) (authenticated bits=0) by enigma.ics.forth.gr (8.14.3//ICS-FORTH/V10.3.0C-EXTNULL-SSL-SASL) with ESMTP id o5OEDekY020203 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 24 Jun 2010 17:13:41 +0300 Message-ID: <4C236791.1030709@ics.forth.gr> Date: Thu, 24 Jun 2010 17:11:29 +0300 From: Yannis Klonatos User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.10) Gecko/20100512 Thunderbird/3.0.5 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com, sandeen@sandeen.net, andi@firstfloor.org X-ASG-Orig-Subj: Re: XFS peculiar behavior Subject: Re: XFS peculiar behavior References: <4C21B9AF.9010307@ics.forth.gr> <20100623231700.GP6590@dastard> In-Reply-To: <20100623231700.GP6590@dastard> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: AAAAAA== X-j-chkmail-Score: MSGID : 4C2367AE.000 on mailgate : j-chkmail score : . : R=. U=. O=. B=0.000 -> S=0.000 X-ICS-JCHK-SCL: Ham X-Barracuda-Connect: mailgate.ics.forth.gr[139.91.1.2] X-Barracuda-Start-Time: 1277389190 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33428 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hello again, First of all, thank you all for your quick replies. I attach all the information you requested in your responses. 1) The output of xfs_info is the following: meta-data=/dev/sdf isize=256 agcount=32, agsize=45776328 blks = sectsz=512 attr=0 data = bsize=4096 blocks=1464842496, imaxpct=25 = sunit=0 swidth=0 blks, unwritten=1 naming =version 2 bsize=4096 log =internal bsize=4096 blocks=32768, version=1 = ectsz=512 sunit=0 blks, lazy-count=0 realtime =none extsz=4096 blocks=0, rtextents=0 2) The output of xfs_bmap in the lineitem.MYI table of the TPC-H workload is at one run: /mnt/test/mysql/tpch/lineitem.MYI: EXT: FILE-OFFSET BLOCK-RANGE AG AG-OFFSET TOTAL 0: [0..6344271]: 11352529416..11358873687 31 (72..6344343) 6344272 1: [6344272..10901343]: 1464842608..1469399679 4 (112..4557183) 4557072 2: [10901344..18439199]: 1831053200..1838591055 5 (80..7537935) 7537856 3: [18439200..25311519]: 2197263840..2204136159 6 (96..6872415) 6872320 4: [25311520..26660095]: 2563474464..2564823039 7 (96..1348671) 1348576 Given that all disk blocks are in units of 512-byte blocks, if I interpret the output correctly the first file is at block 1465352792 = 698.4GByte offset and the last block is at 5421.1GByte offset, meaning that this specific table is split over a 4,7TByte distance. However, in another run (with a clean file system again) /mnt/test/mysql/tpch/lineitem.MYI: EXT: FILE-OFFSET BLOCK-RANGE AG AG-OFFSET TOTAL 0: [0..26660095]: 11352529416..11379189511 31 (72..26660167) 26660096 3) For the copy, as i mentioned in my previous mail, i copied the database over nfs using the cp -R linux program. Thus, i believe all the files are copied sequentially, the one after the other, with no other concurrent write operations running at the background. The file-system was pristine before the cp with no files, and just the mount directory was created (all the other necessary files and directories are created from the cp program). 4) The version of xfsprogs is 2.9.4 (acquired with xfs_info -v) and the version of the kernel is 2.6.18-164.11.1.el5. If you require any further information let me know. Let me state that i can also provide you with the complete data-set if you feel it necessary trying to reproduce the issue. Thanks, Yannis Klonatos >> Hi all! >> >> I have come across the following peculiar behavior in XFS >> and i would appreciate any information anyone >> could provide. >> In our lab we have a system that has twelve 500GByte hard >> disks (total capacity 6TByte), connected to an >> Areca (ARC-1680D-IX-12) SAS storage controller. The disks are >> configured as a RAID-0 device. Then I create >> a clean XFS filesystem on top of the raid volume, using the whole >> capacity. We use this test-setup to measure >> performance improvement for a TPC-H experiment. We copy the database >> over the clean XFS filesystem using the >> cp utility. The database used in our experiments is 56GBytes in size >> (data + indices). >> The problem is that i have noticed that XFS may - not all >> times - split a table over a large disk distance. For >> example in one run i have noticed that a file of 13GByte is split >> over a 4,7TByte distance (I calculate this distance >> by subtracting the final block used for the file with the first one. >> The two disk blocks values are acquired using the >> FIBMAP ioctl). >> Is there some reasoning behind this (peculiar) behavior? I >> would expect that since the underlying storage is so >> large, and the dataset is so small, XFS would try to minimize disk >> seeks and thus place the file sequentially in disk. >> Furthermore, I understand that there may be some blocks left unused >> by XFS between subsequent file blocks used >> in order to handle any write appends that may come afterward. But i >> wouldn't expect such a large splitting of a single >> file. >> Any help? >> From sandeen@sandeen.net Thu Jun 24 10:19:11 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_83 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5OFJB7m177637 for ; Thu, 24 Jun 2010 10:19:11 -0500 X-ASG-Debug-ID: 1277392913-021a00ff0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mx1.redhat.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 6A296153ECDB for ; Thu, 24 Jun 2010 08:21:53 -0700 (PDT) Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id NeT5Rmdrn44to6wS for ; Thu, 24 Jun 2010 08:21:53 -0700 (PDT) X-ASG-Whitelist: Barracuda Reputation Received: from int-mx05.intmail.prod.int.phx2.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.18]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o5OFLLnA024348 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 24 Jun 2010 11:21:21 -0400 Received: from neon.msp.redhat.com (neon.msp.redhat.com [10.15.80.10]) by int-mx05.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o5OFLHeh001646; Thu, 24 Jun 2010 11:21:17 -0400 Message-ID: <4C2377ED.8090300@sandeen.net> Date: Thu, 24 Jun 2010 10:21:17 -0500 From: Eric Sandeen User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.8) Gecko/20100301 Fedora/3.0.3-1.fc11 Lightning/1.0b2pre Thunderbird/3.0.3 MIME-Version: 1.0 To: Yannis Klonatos CC: Dave Chinner , andi@firstfloor.org, xfs@oss.sgi.com X-ASG-Orig-Subj: Re: XFS peculiar behavior Subject: Re: XFS peculiar behavior References: <4C21B9AF.9010307@ics.forth.gr> <20100623231700.GP6590@dastard> <4C236791.1030709@ics.forth.gr> In-Reply-To: <4C236791.1030709@ics.forth.gr> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.67 on 10.5.11.18 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1277392914 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On 06/24/2010 09:11 AM, Yannis Klonatos wrote: > Hello again, > > First of all, thank you all for your quick replies. I attach > all the information you requested in your responses. > > 1) The output of xfs_info is the following: > > meta-data=/dev/sdf isize=256 agcount=32, agsize=45776328 blks > = sectsz=512 attr=0 > data = bsize=4096 blocks=1464842496, imaxpct=25 > = sunit=0 swidth=0 blks, unwritten=1 > naming =version 2 bsize=4096 > log =internal bsize=4096 blocks=32768, version=1 > = sectsz=512 sunit=0 blks, lazy-count=0 > realtime =none extsz=4096 blocks=0, rtextents=0 > > 2) The output of xfs_bmap in the lineitem.MYI table of the TPC-H > workload is at one run: > > /mnt/test/mysql/tpch/lineitem.MYI: > EXT: FILE-OFFSET BLOCK-RANGE AG AG-OFFSET TOTAL > 0: [0..6344271]: 11352529416..11358873687 31 (72..6344343) 6344272 > 1: [6344272..10901343]: 1464842608..1469399679 4 (112..4557183) 4557072 > 2: [10901344..18439199]: 1831053200..1838591055 5 (80..7537935) 7537856 > 3: [18439200..25311519]: 2197263840..2204136159 6 (96..6872415) 6872320 > 4: [25311520..26660095]: 2563474464..2564823039 7 (96..1348671) 1348576 > > Given that all disk blocks are in units of 512-byte blocks, if I > interpret the output > correctly the first file is at block 1465352792 = 698.4GByte offset and > the last block > is at 5421.1GByte offset, meaning that this specific table is split over > a 4,7TByte distance. The file started out in the last AG, and then had to wrap around, because it hit the end of the filesystem. :) It was then somewhat sequential in AGs 4,5,6,7 after that, though not perfectly so. This run was with a clean filesystem? Was the mountpoint /mnt/test? XFS distributes new directories into new AGs (allocation groups, or disk regions) for parallelism, and then files in those dirs start populating the same AG. So if /mnt/test/mysql/tpch ended up in the last AG (#31) then the file likely started there, too. Also, the "inode32" allocator biases data towards the end of the filesystem, because inode numbers in xfs reflect their on-disk location, and to keep inodes numbers below 2^32, it must save space in the lower portions of the filesystem. You might want to re-test with a fresh filesystem mounted with the "inode64" mount option. > However, in another run (with a clean file system again) > > /mnt/test/mysql/tpch/lineitem.MYI: > EXT: FILE-OFFSET BLOCK-RANGE AG AG-OFFSET > TOTAL > 0: [0..26660095]: 11352529416..11379189511 31 (72..26660167) > 26660096 Hmm. > 3) For the copy, as i mentioned in my previous mail, i copied the > database over nfs using the cp -R linux program. > Thus, i believe all the files are copied sequentially, the one after the > other, with no other concurrent write operations > running at the background. The file-system was pristine before the cp > with no files, and just the mount directory was > created (all the other necessary files and directories are created from > the cp program). IIRC, copies over NFS can affect xfs allocator performance, because (IIRC) it tends to close the filehandle periodically and xfs loses the allocator context. We used to have a filehandle cache which held them open, but that went away some time ago. Dave will probably correct significant swaths of this information for me, though ;) > 4) The version of xfsprogs is 2.9.4 (acquired with xfs_info -v) and the > version of the kernel is 2.6.18-164.11.1.el5. Ah! A Red Hat kernel; have you asked your Red Hat support folks for help on this issue? -Eric > If you require any further information let me know. Let me > state that i can also provide you with the complete > data-set if you feel it necessary trying to reproduce the issue. > > Thanks, > Yannis Klonatos >>> Hi all! >>> >>> I have come across the following peculiar behavior in XFS >>> and i would appreciate any information anyone >>> could provide. >>> In our lab we have a system that has twelve 500GByte hard >>> disks (total capacity 6TByte), connected to an >>> Areca (ARC-1680D-IX-12) SAS storage controller. The disks are >>> configured as a RAID-0 device. Then I create >>> a clean XFS filesystem on top of the raid volume, using the whole >>> capacity. We use this test-setup to measure >>> performance improvement for a TPC-H experiment. We copy the database >>> over the clean XFS filesystem using the >>> cp utility. The database used in our experiments is 56GBytes in size >>> (data + indices). >>> The problem is that i have noticed that XFS may - not all >>> times - split a table over a large disk distance. For >>> example in one run i have noticed that a file of 13GByte is split >>> over a 4,7TByte distance (I calculate this distance >>> by subtracting the final block used for the file with the first one. >>> The two disk blocks values are acquired using the >>> FIBMAP ioctl). >>> Is there some reasoning behind this (peculiar) behavior? I >>> would expect that since the underlying storage is so >>> large, and the dataset is so small, XFS would try to minimize disk >>> seeks and thus place the file sequentially in disk. >>> Furthermore, I understand that there may be some blocks left unused >>> by XFS between subsequent file blocks used >>> in order to handle any write appends that may come afterward. But i >>> wouldn't expect such a large splitting of a single >>> file. >>> Any help? >>> > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs > From klonatos@ics.forth.gr Thu Jun 24 10:41:29 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_83 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5OFfSsg206072 for ; Thu, 24 Jun 2010 10:41:29 -0500 X-ASG-Debug-ID: 1277394511-51a201370000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailgate.ics.forth.gr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 538F11119DFF for ; Thu, 24 Jun 2010 08:48:32 -0700 (PDT) Received: from mailgate.ics.forth.gr (mailgate.ics.forth.gr [139.91.1.2]) by cuda.sgi.com with ESMTP id rzPxtba3DmtvLtv4 for ; Thu, 24 Jun 2010 08:48:32 -0700 (PDT) Received: from av1.ics.forth.gr (av1-in.ics.forth.gr [139.91.1.71]) by mailgate.ics.forth.gr (8.14.3/ICS-FORTH/V10-1.8-GATE) with ESMTP id o5OFaPEj020440; Thu, 24 Jun 2010 18:36:27 +0300 (EEST) X-AuditID: 8b5b9d47-b7bd0ae000003df0-67-4c237b784d04 Received: from enigma.ics.forth.gr (webmail.ics.forth.gr [139.91.1.30]) by av1.ics.forth.gr (SMTP Outbound / FORTH / ICS) with SMTP id 1A.C3.15856.87B732C4; Thu, 24 Jun 2010 18:36:24 +0300 (EEST) Received: from [139.91.204.104] ([139.91.204.104]) (authenticated bits=0) by enigma.ics.forth.gr (8.14.3//ICS-FORTH/V10.3.0C-EXTNULL-SSL-SASL) with ESMTP id o5OFc6YC021739 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 24 Jun 2010 18:38:08 +0300 Message-ID: <4C237B4E.8030606@ics.forth.gr> Date: Thu, 24 Jun 2010 18:35:42 +0300 From: Yannis Klonatos User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; el; rv:1.9.1.10) Gecko/20100512 Thunderbird/3.0.5 MIME-Version: 1.0 To: Eric Sandeen CC: Dave Chinner , andi@firstfloor.org, xfs@oss.sgi.com X-ASG-Orig-Subj: Re: XFS peculiar behavior Subject: Re: XFS peculiar behavior References: <4C21B9AF.9010307@ics.forth.gr> <20100623231700.GP6590@dastard> <4C236791.1030709@ics.forth.gr> <4C2377ED.8090300@sandeen.net> In-Reply-To: <4C2377ED.8090300@sandeen.net> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Brightmail-Tracker: AAAAAA== X-j-chkmail-Score: MSGID : 4C237B79.000 on mailgate : j-chkmail score : . : R=. U=. O=. B=0.000 -> S=0.000 X-ICS-JCHK-SCL: Ham X-Barracuda-Connect: mailgate.ics.forth.gr[139.91.1.2] X-Barracuda-Start-Time: 1277394513 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33432 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean στις 6/24/2010 6:21 PM, O/H Eric Sandeen έγÏαψε: > On 06/24/2010 09:11 AM, Yannis Klonatos wrote: > >> Hello again, >> >> First of all, thank you all for your quick replies. I attach >> all the information you requested in your responses. >> >> 1) The output of xfs_info is the following: >> >> meta-data=/dev/sdf isize=256 agcount=32, agsize=45776328 blks >> = sectsz=512 attr=0 >> data = bsize=4096 blocks=1464842496, imaxpct=25 >> = sunit=0 swidth=0 blks, unwritten=1 >> naming =version 2 bsize=4096 >> log =internal bsize=4096 blocks=32768, version=1 >> = sectsz=512 sunit=0 blks, lazy-count=0 >> realtime =none extsz=4096 blocks=0, rtextents=0 >> >> 2) The output of xfs_bmap in the lineitem.MYI table of the TPC-H >> workload is at one run: >> >> /mnt/test/mysql/tpch/lineitem.MYI: >> EXT: FILE-OFFSET BLOCK-RANGE AG AG-OFFSET TOTAL >> 0: [0..6344271]: 11352529416..11358873687 31 (72..6344343) 6344272 >> 1: [6344272..10901343]: 1464842608..1469399679 4 (112..4557183) 4557072 >> 2: [10901344..18439199]: 1831053200..1838591055 5 (80..7537935) 7537856 >> 3: [18439200..25311519]: 2197263840..2204136159 6 (96..6872415) 6872320 >> 4: [25311520..26660095]: 2563474464..2564823039 7 (96..1348671) 1348576 >> >> Given that all disk blocks are in units of 512-byte blocks, if I >> interpret the output >> correctly the first file is at block 1465352792 = 698.4GByte offset and >> the last block >> is at 5421.1GByte offset, meaning that this specific table is split over >> a 4,7TByte distance. >> > The file started out in the last AG, and then had to wrap around, > because it hit the end of the filesystem. :) It was then somewhat > sequential in AGs 4,5,6,7 after that, though not perfectly so. > > This run was with a clean filesystem? Was the mountpoint > /mnt/test? XFS distributes new directories into new AGs (allocation > groups, or disk regions) for parallelism, and then files in those dirs > start populating the same AG. So if /mnt/test/mysql/tpch ended up in > the last AG (#31) then the file likely started there, too. > Ok. Your argument makes a lot of sense. However, this is a clean file system (mount point /mnt/test), and I am certain that the files copied before the aforementioned index file (lineitem.MYI) require 28GByte space in total. So, this still raises the question why XFS splitted these files in a way that caused the whole file system space to be "covered", and the lineitem file to be placed starting at the end of the FS (as you mentioned). Also, based on my little XFS knowledge and background, i seriously doubt that parallelism along AGs is an issue here, since the copy utility copies files sequentially, so a new AG would be allocated for the /mnt/test/mysql/tpch directory, and would be populated completely with all its files, before another AG was created. This is true of course, only if your observation holds. > Also, the "inode32" allocator biases data towards the end of the > filesystem, because inode numbers in xfs reflect their on-disk location, > and to keep inodes numbers below 2^32, it must save space in the lower > portions of the filesystem. You might want to re-test with a fresh > filesystem mounted with the "inode64" mount option. > > >> However, in another run (with a clean file system again) >> >> /mnt/test/mysql/tpch/lineitem.MYI: >> EXT: FILE-OFFSET BLOCK-RANGE AG AG-OFFSET >> TOTAL >> 0: [0..26660095]: 11352529416..11379189511 31 (72..26660167) >> 26660096 >> > Hmm. > > >> 3) For the copy, as i mentioned in my previous mail, i copied the >> database over nfs using the cp -R linux program. >> Thus, i believe all the files are copied sequentially, the one after the >> other, with no other concurrent write operations >> running at the background. The file-system was pristine before the cp >> with no files, and just the mount directory was >> created (all the other necessary files and directories are created from >> the cp program). >> > IIRC, copies over NFS can affect xfs allocator performance, because > (IIRC) it tends to close the filehandle periodically and xfs loses the > allocator context. We used to have a filehandle cache which held them > open, but that went away some time ago. > > Dave will probably correct significant swaths of this information for > me, though ;) > > >> 4) The version of xfsprogs is 2.9.4 (acquired with xfs_info -v) and the >> version of the kernel is 2.6.18-164.11.1.el5. >> > Ah! A Red Hat kernel; have you asked your Red Hat support folks for > help on this issue? > I suppose that they will redirect me back to you, won't they? :-) > -Eric > > >> If you require any further information let me know. Let me >> state that i can also provide you with the complete >> data-set if you feel it necessary trying to reproduce the issue. >> >> Thanks, >> Yannis Klonatos >> >>>> Hi all! >>>> >>>> I have come across the following peculiar behavior in XFS >>>> and i would appreciate any information anyone >>>> could provide. >>>> In our lab we have a system that has twelve 500GByte hard >>>> disks (total capacity 6TByte), connected to an >>>> Areca (ARC-1680D-IX-12) SAS storage controller. The disks are >>>> configured as a RAID-0 device. Then I create >>>> a clean XFS filesystem on top of the raid volume, using the whole >>>> capacity. We use this test-setup to measure >>>> performance improvement for a TPC-H experiment. We copy the database >>>> over the clean XFS filesystem using the >>>> cp utility. The database used in our experiments is 56GBytes in size >>>> (data + indices). >>>> The problem is that i have noticed that XFS may - not all >>>> times - split a table over a large disk distance. For >>>> example in one run i have noticed that a file of 13GByte is split >>>> over a 4,7TByte distance (I calculate this distance >>>> by subtracting the final block used for the file with the first one. >>>> The two disk blocks values are acquired using the >>>> FIBMAP ioctl). >>>> Is there some reasoning behind this (peculiar) behavior? I >>>> would expect that since the underlying storage is so >>>> large, and the dataset is so small, XFS would try to minimize disk >>>> seeks and thus place the file sequentially in disk. >>>> Furthermore, I understand that there may be some blocks left unused >>>> by XFS between subsequent file blocks used >>>> in order to handle any write appends that may come afterward. But i >>>> wouldn't expect such a large splitting of a single >>>> file. >>>> Any help? >>>> >>>> >> _______________________________________________ >> xfs mailing list >> xfs@oss.sgi.com >> http://oss.sgi.com/mailman/listinfo/xfs >> >> > From klonatos@ics.forth.gr Thu Jun 24 15:28:54 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5OKSre3046340 for ; Thu, 24 Jun 2010 15:28:54 -0500 X-ASG-Debug-ID: 1277411494-4c8403370000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailgate.ics.forth.gr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id C135C154542F for ; Thu, 24 Jun 2010 13:31:34 -0700 (PDT) Received: from mailgate.ics.forth.gr (mailgate.ics.forth.gr [139.91.1.2]) by cuda.sgi.com with ESMTP id 5oLrs1bS56y4aXDY for ; Thu, 24 Jun 2010 13:31:34 -0700 (PDT) Received: from av1.ics.forth.gr (av1-in.ics.forth.gr [139.91.1.71]) by mailgate.ics.forth.gr (8.14.3/ICS-FORTH/V10-1.8-GATE) with ESMTP id o5OKVVsJ004496 for ; Thu, 24 Jun 2010 23:31:33 +0300 (EEST) X-AuditID: 8b5b9d47-b7bd0ae000003df0-f5-4c23c0a3d7a2 Received: from enigma.ics.forth.gr (webmail.ics.forth.gr [139.91.1.30]) by av1.ics.forth.gr (SMTP Outbound / FORTH / ICS) with SMTP id 04.84.15856.3A0C32C4; Thu, 24 Jun 2010 23:31:31 +0300 (EEST) Received: from [192.168.1.63] (adsl-200.91.140.92.tellas.gr [91.140.92.200]) (authenticated bits=0) by enigma.ics.forth.gr (8.14.3//ICS-FORTH/V10.3.0C-EXTNULL-SSL-SASL) with ESMTP id o5OKXD3x023817 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Thu, 24 Jun 2010 23:33:14 +0300 Message-ID: <4C23C074.5080100@ics.forth.gr> Date: Thu, 24 Jun 2010 23:30:44 +0300 From: Yannis Klonatos User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; el; rv:1.9.1.10) Gecko/20100512 Thunderbird/3.0.5 MIME-Version: 1.0 To: xfs@oss.sgi.com X-ASG-Orig-Subj: Metadata hit ratio Subject: Metadata hit ratio Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: AAAAAhS+x8EU3liE X-j-chkmail-Score: MSGID : 4C23C0A3.000 on mailgate : j-chkmail score : . : R=. U=. O=. B=0.000 -> S=0.000 X-ICS-JCHK-SCL: Ham X-Barracuda-Connect: mailgate.ics.forth.gr[139.91.1.2] X-Barracuda-Start-Time: 1277411495 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33452 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hello all, Along with my other (yet pending :-( ) question/issue, I have another question (i hope this is the last :-) ) now. I would like to measure the hit ratio of the metadata accesses of XFS (inode+internal buffers). It is my understanding that XFS uses its own data structures, and does not rely on the buffercache mechanisms of the Linux kernel. However, even doing so, there may be cases that the metadata may not fit in the RAM, and I/O operations are required to fetch them from the underlying storage. I have found out that there are two places that XFS uses the submit_bio function. If i add some counters there, would it suffice to measure all the metadata misses? Or is this information available in one (or more) of the xfs_stats counters? And if so, what do i need to sum up in order to get the total metadata hit and miss ratio? Thanks (again!) in advance, Yannis Klonatos From jack@suse.cz Thu Jun 24 16:57:11 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5OLv9dv048441 for ; Thu, 24 Jun 2010 16:57:11 -0500 X-ASG-Debug-ID: 1277417053-4b3a015a0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mx2.suse.de (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 6190214AFB13 for ; Thu, 24 Jun 2010 15:04:13 -0700 (PDT) Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id 2WuGPTHEsE2OdX4p for ; Thu, 24 Jun 2010 15:04:13 -0700 (PDT) Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.221.2]) by mx2.suse.de (Postfix) with ESMTP id 7035A89471; Thu, 24 Jun 2010 23:59:48 +0200 (CEST) Received: by quack.suse.cz (Postfix, from userid 10005) id 0D0CB2B1BE6; Thu, 24 Jun 2010 23:59:22 +0200 (CEST) Date: Thu, 24 Jun 2010 23:59:22 +0200 From: Jan Kara To: Christoph Hellwig Cc: linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com, linux-ext4@vger.kernel.org X-ASG-Orig-Subj: Re: [PATCH 1/2] direct-io: move aio_complete into ->end_io Subject: Re: [PATCH 1/2] direct-io: move aio_complete into ->end_io Message-ID: <20100624215922.GE3345@quack.suse.cz> References: <20100622122144.302857146@bombadil.infradead.org> <20100622123113.011371666@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100622123113.011371666@bombadil.infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: cantor2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1277417054 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33457 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue 22-06-10 08:21:45, Christoph Hellwig wrote: > Filesystems with unwritten extent support must not complete an AIO request > until the transaction to convert the extent has been commited. That means > the aio_complete calls needs to be moved into the ->end_io callback so > that the filesystem can control when to call it exactly. > > This makes a bit of a mess out of dio_complete and the ->end_io callback > prototype even more complicated. In addition ->end_io is now called with > i_alloc_sem held for DIO_LOCKING filesystems. The only filesystem that > has both and ->end_io callback and sets DIO_LOCKING is ext4, which doesn't > appear to do anything that could deadlock with i_alloc_sem in ->end_io. Umm, I don't get this. Looking at the ->end_io callback it has been always called with i_alloc_sem held. It's only aio_complete() which will be called with i_alloc_sem held after your changes. Or am I missing something? Moreover the async testing you do does not seem to be completely right. dio->is_async is a flag that controls whether dio code waits for IO to be completed or not. In particular it is not set for AIO that spans beyond current i_size so it does not seem to be exactly what you need (at least for ext4 it isn't). I think that is_sync_kiocb() is a test that should be used to recognize AIO - and that has an advantage that you don't have to pass the is_async flag around. Honza > > Signed-off-by: Christoph Hellwig > > Index: linux-2.6/fs/direct-io.c > =================================================================== > --- linux-2.6.orig/fs/direct-io.c 2010-06-22 09:48:37.239004298 +0200 > +++ linux-2.6/fs/direct-io.c 2010-06-22 11:54:42.281003878 +0200 > @@ -218,7 +218,7 @@ static struct page *dio_get_page(struct > * filesystems can use it to hold additional state between get_block calls and > * dio_complete. > */ > -static int dio_complete(struct dio *dio, loff_t offset, int ret) > +static int dio_complete(struct dio *dio, loff_t offset, int ret, bool is_async) > { > ssize_t transferred = 0; > > @@ -239,14 +239,6 @@ static int dio_complete(struct dio *dio, > transferred = dio->i_size - offset; > } > > - if (dio->end_io && dio->result) > - dio->end_io(dio->iocb, offset, transferred, > - dio->map_bh.b_private); > - > - if (dio->flags & DIO_LOCKING) > - /* lockdep: non-owner release */ > - up_read_non_owner(&dio->inode->i_alloc_sem); > - > if (ret == 0) > ret = dio->page_errors; > if (ret == 0) > @@ -254,6 +246,17 @@ static int dio_complete(struct dio *dio, > if (ret == 0) > ret = transferred; > > + if (dio->end_io && dio->result) { > + dio->end_io(dio->iocb, offset, transferred, > + dio->map_bh.b_private, ret, is_async); > + } else if (is_async) { > + aio_complete(dio->iocb, ret, 0); > + } > + > + if (dio->flags & DIO_LOCKING) > + /* lockdep: non-owner release */ > + up_read_non_owner(&dio->inode->i_alloc_sem); > + > return ret; > } > > @@ -277,8 +280,7 @@ static void dio_bio_end_aio(struct bio * > spin_unlock_irqrestore(&dio->bio_lock, flags); > > if (remaining == 0) { > - int ret = dio_complete(dio, dio->iocb->ki_pos, 0); > - aio_complete(dio->iocb, ret, 0); > + dio_complete(dio, dio->iocb->ki_pos, 0, true); > kfree(dio); > } > } > @@ -1126,7 +1128,7 @@ direct_io_worker(int rw, struct kiocb *i > spin_unlock_irqrestore(&dio->bio_lock, flags); > > if (ret2 == 0) { > - ret = dio_complete(dio, offset, ret); > + ret = dio_complete(dio, offset, ret, false); > kfree(dio); > } else > BUG_ON(ret != -EIOCBQUEUED); > Index: linux-2.6/fs/ext4/inode.c > =================================================================== > --- linux-2.6.orig/fs/ext4/inode.c 2010-06-22 09:48:37.249004508 +0200 > +++ linux-2.6/fs/ext4/inode.c 2010-06-22 12:18:45.883255381 +0200 > @@ -3775,7 +3775,8 @@ static ext4_io_end_t *ext4_init_io_end ( > } > > static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset, > - ssize_t size, void *private) > + ssize_t size, void *private, int ret, > + bool is_async) > { > ext4_io_end_t *io_end = iocb->private; > struct workqueue_struct *wq; > @@ -3784,7 +3785,7 @@ static void ext4_end_io_dio(struct kiocb > > /* if not async direct IO or dio with 0 bytes write, just return */ > if (!io_end || !size) > - return; > + goto out; > > ext_debug("ext4_end_io_dio(): io_end 0x%p" > "for inode %lu, iocb 0x%p, offset %llu, size %llu\n", > @@ -3795,7 +3796,7 @@ static void ext4_end_io_dio(struct kiocb > if (io_end->flag != EXT4_IO_UNWRITTEN){ > ext4_free_io_end(io_end); > iocb->private = NULL; > - return; > + goto out; > } > > io_end->offset = offset; > @@ -3812,6 +3813,9 @@ static void ext4_end_io_dio(struct kiocb > list_add_tail(&io_end->list, &ei->i_completed_io_list); > spin_unlock_irqrestore(&ei->i_completed_io_lock, flags); > iocb->private = NULL; > +out: > + if (is_async) > + aio_complete(iocb, ret, 0); > } > > static void ext4_end_io_buffer_write(struct buffer_head *bh, int uptodate) > Index: linux-2.6/fs/ocfs2/aops.c > =================================================================== > --- linux-2.6.orig/fs/ocfs2/aops.c 2010-06-22 09:48:37.259012749 +0200 > +++ linux-2.6/fs/ocfs2/aops.c 2010-06-22 12:19:03.931005757 +0200 > @@ -609,7 +609,9 @@ bail: > static void ocfs2_dio_end_io(struct kiocb *iocb, > loff_t offset, > ssize_t bytes, > - void *private) > + void *private, > + int ret, > + bool is_async) > { > struct inode *inode = iocb->ki_filp->f_path.dentry->d_inode; > int level; > @@ -623,6 +625,9 @@ static void ocfs2_dio_end_io(struct kioc > if (!level) > up_read(&inode->i_alloc_sem); > ocfs2_rw_unlock(inode, level); > + > + if (is_async) > + aio_complete(iocb, ret, 0); > } > > /* > Index: linux-2.6/fs/xfs/linux-2.6/xfs_aops.c > =================================================================== > --- linux-2.6.orig/fs/xfs/linux-2.6/xfs_aops.c 2010-06-22 09:48:37.268012190 +0200 > +++ linux-2.6/fs/xfs/linux-2.6/xfs_aops.c 2010-06-22 14:05:02.522005722 +0200 > @@ -1599,7 +1599,9 @@ xfs_end_io_direct( > struct kiocb *iocb, > loff_t offset, > ssize_t size, > - void *private) > + void *private, > + int ret, > + bool is_async) > { > xfs_ioend_t *ioend = iocb->private; > > @@ -1645,6 +1647,9 @@ xfs_end_io_direct( > * against double-freeing. > */ > iocb->private = NULL; > + > + if (is_async) > + aio_complete(iocb, ret, 0); > } > > STATIC ssize_t > Index: linux-2.6/fs/xfs/linux-2.6/xfs_aops.h > =================================================================== > --- linux-2.6.orig/fs/xfs/linux-2.6/xfs_aops.h 2010-06-22 09:48:37.278274238 +0200 > +++ linux-2.6/fs/xfs/linux-2.6/xfs_aops.h 2010-06-22 09:49:12.388034051 +0200 > @@ -37,6 +37,8 @@ typedef struct xfs_ioend { > size_t io_size; /* size of the extent */ > xfs_off_t io_offset; /* offset in the file */ > struct work_struct io_work; /* xfsdatad work queue */ > + struct kiocb *io_iocb; > + int io_result; > } xfs_ioend_t; > > extern const struct address_space_operations xfs_address_space_operations; > Index: linux-2.6/include/linux/fs.h > =================================================================== > --- linux-2.6.orig/include/linux/fs.h 2010-06-22 09:49:07.188253984 +0200 > +++ linux-2.6/include/linux/fs.h 2010-06-22 10:34:10.128005975 +0200 > @@ -415,7 +415,8 @@ struct buffer_head; > typedef int (get_block_t)(struct inode *inode, sector_t iblock, > struct buffer_head *bh_result, int create); > typedef void (dio_iodone_t)(struct kiocb *iocb, loff_t offset, > - ssize_t bytes, void *private); > + ssize_t bytes, void *private, int ret, > + bool is_async); > > /* > * Attribute flags. These should be or-ed together to figure out what > > -- > To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Jan Kara SUSE Labs, CR From SRS0+f2mc+24+fromorbit.com=dave@internode.on.net Thu Jun 24 17:22:13 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5OMMDbD049372 for ; Thu, 24 Jun 2010 17:22:13 -0500 X-ASG-Debug-ID: 1277418293-031201aa0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 39AED1546212 for ; Thu, 24 Jun 2010 15:24:53 -0700 (PDT) Received: from mail.internode.on.net (bld-mail15.adl6.internode.on.net [150.101.137.100]) by cuda.sgi.com with ESMTP id DCqePXt43nFrvEsr for ; Thu, 24 Jun 2010 15:24:53 -0700 (PDT) Received: from dastard (unverified [121.91.222.126]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 17549871-1927428 for ; Fri, 25 Jun 2010 07:54:52 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1ORuqn-00087a-67 for xfs@oss.sgi.com; Fri, 25 Jun 2010 08:24:49 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1ORuqh-00065Z-ON for xfs@oss.sgi.com; Fri, 25 Jun 2010 08:24:43 +1000 From: Dave Chinner To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH] xfs_db: check for valid inode data pointer before dereferencing Subject: [PATCH] xfs_db: check for valid inode data pointer before dereferencing Date: Fri, 25 Jun 2010 08:24:43 +1000 Message-Id: <1277418283-23381-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 X-Barracuda-Connect: bld-mail15.adl6.internode.on.net[150.101.137.100] X-Barracuda-Start-Time: 1277418295 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33460 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner When processing an inode, the code checks various flags to determine whether to output messages or not. When checking the CLI provided inode numbers to be verbose about, we fail to check if the inode data structre returned is valid or not before dereferencing it. Hence running xfs_check with the "serious errors only" flag, xfs_db will crash. Fix up the "should we output" logic to be safe. Signed-off-by: Dave Chinner --- db/check.c | 29 ++++++++++++++++------------- 1 files changed, 16 insertions(+), 13 deletions(-) diff --git a/db/check.c b/db/check.c index c62321b..4f8a62a 100644 --- a/db/check.c +++ b/db/check.c @@ -2619,6 +2619,7 @@ process_inode( xfs_qcnt_t ic = 0; xfs_qcnt_t rc = 0; xfs_dqid_t dqprid; + int v = 0; static char okfmts[] = { 0, /* type 0 unused */ 1 << XFS_DINODE_FMT_DEV, /* FIFO */ @@ -2653,15 +2654,16 @@ process_inode( bno = XFS_INO_TO_FSB(mp, ino); blkmap = NULL; } + v = (!sflag || (id && id->ilist) || CHECK_BLIST(bno)); if (idic.di_magic != XFS_DINODE_MAGIC) { - if (!sflag || isfree || id->ilist || CHECK_BLIST(bno)) + if (isfree || v) dbprintf(_("bad magic number %#x for inode %lld\n"), idic.di_magic, ino); error++; return; } if (!XFS_DINODE_GOOD_VERSION(idic.di_version)) { - if (!sflag || isfree || id->ilist || CHECK_BLIST(bno)) + if (isfree || v) dbprintf(_("bad version number %#x for inode %lld\n"), idic.di_version, ino); error++; @@ -2669,7 +2671,7 @@ process_inode( } if (isfree) { if (idic.di_nblocks != 0) { - if (!sflag || id->ilist || CHECK_BLIST(bno)) + if (v) dbprintf(_("bad nblocks %lld for free inode " "%lld\n"), idic.di_nblocks, ino); @@ -2680,21 +2682,22 @@ process_inode( else nlink = idic.di_nlink; if (nlink != 0) { - if (!sflag || id->ilist || CHECK_BLIST(bno)) + if (v) dbprintf(_("bad nlink %d for free inode %lld\n"), nlink, ino); error++; } if (idic.di_mode != 0) { - if (!sflag || id->ilist || CHECK_BLIST(bno)) + if (v) dbprintf(_("bad mode %#o for free inode %lld\n"), idic.di_mode, ino); error++; } return; } + if (be32_to_cpu(dip->di_next_unlinked) != NULLAGINO) { - if (!sflag || isfree || id->ilist || CHECK_BLIST(bno)) + if (v) dbprintf(_("bad next unlinked %#x for inode %lld\n"), be32_to_cpu(dip->di_next_unlinked), ino); error++; @@ -2704,27 +2707,27 @@ process_inode( */ if ((((idic.di_mode & S_IFMT) >> 12) > 15) || (!(okfmts[(idic.di_mode & S_IFMT) >> 12] & (1 << idic.di_format)))) { - if (!sflag || id->ilist || CHECK_BLIST(bno)) + if (v) dbprintf(_("bad format %d for inode %lld type %#o\n"), idic.di_format, id->ino, idic.di_mode & S_IFMT); error++; return; } if ((unsigned int)XFS_DFORK_ASIZE(dip, mp) >= XFS_LITINO(mp)) { - if (!sflag || id->ilist) + if (v) dbprintf(_("bad fork offset %d for inode %lld\n"), idic.di_forkoff, id->ino); error++; return; } if ((unsigned int)idic.di_aformat > XFS_DINODE_FMT_BTREE) { - if (!sflag || id->ilist) + if (v) dbprintf(_("bad attribute format %d for inode %lld\n"), idic.di_aformat, id->ino); error++; return; } - if (verbose || id->ilist || CHECK_BLIST(bno)) + if (verbose || (id && id->ilist) || CHECK_BLIST(bno)) dbprintf(_("inode %lld mode %#o fmt %s " "afmt %s " "nex %d anex %d nblk %lld sz %lld%s%s%s%s%s%s%s\n"), @@ -2844,20 +2847,20 @@ process_inode( } totblocks = totdblocks + totiblocks + atotdblocks + atotiblocks; if (totblocks != idic.di_nblocks) { - if (!sflag || id->ilist || CHECK_BLIST(bno)) + if (v) dbprintf(_("bad nblocks %lld for inode %lld, counted " "%lld\n"), idic.di_nblocks, id->ino, totblocks); error++; } if (nextents != idic.di_nextents) { - if (!sflag || id->ilist || CHECK_BLIST(bno)) + if (v) dbprintf(_("bad nextents %d for inode %lld, counted %d\n"), idic.di_nextents, id->ino, nextents); error++; } if (anextents != idic.di_anextents) { - if (!sflag || id->ilist || CHECK_BLIST(bno)) + if (v) dbprintf(_("bad anextents %d for inode %lld, counted " "%d\n"), idic.di_anextents, id->ino, anextents); -- 1.7.1 From SRS0+mGhR+25+fromorbit.com=david@internode.on.net Thu Jun 24 19:43:53 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_83 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5P0hqgf054056 for ; Thu, 24 Jun 2010 19:43:53 -0500 X-ASG-Debug-ID: 1277427057-053b00500000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 3295C112DDE6 for ; Thu, 24 Jun 2010 17:50:58 -0700 (PDT) Received: from mail.internode.on.net (bld-mail12.adl6.internode.on.net [150.101.137.97]) by cuda.sgi.com with ESMTP id wqlAGnVTXagHAtGu for ; Thu, 24 Jun 2010 17:50:58 -0700 (PDT) Received: from dastard (unverified [121.45.182.52]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 29179357-1927428 for multiple; Fri, 25 Jun 2010 10:16:32 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1ORx3u-0000HV-QQ; Fri, 25 Jun 2010 10:46:30 +1000 Date: Fri, 25 Jun 2010 10:46:30 +1000 From: Dave Chinner To: Eric Sandeen Cc: Yannis Klonatos , andi@firstfloor.org, xfs@oss.sgi.com X-ASG-Orig-Subj: Re: XFS peculiar behavior Subject: Re: XFS peculiar behavior Message-ID: <20100625004630.GS6590@dastard> References: <4C21B9AF.9010307@ics.forth.gr> <20100623231700.GP6590@dastard> <4C236791.1030709@ics.forth.gr> <4C2377ED.8090300@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C2377ED.8090300@sandeen.net> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail12.adl6.internode.on.net[150.101.137.97] X-Barracuda-Start-Time: 1277427059 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33469 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu, Jun 24, 2010 at 10:21:17AM -0500, Eric Sandeen wrote: > On 06/24/2010 09:11 AM, Yannis Klonatos wrote: > > Hello again, > > > > First of all, thank you all for your quick replies. I attach > > all the information you requested in your responses. > > > > 1) The output of xfs_info is the following: > > > > meta-data=/dev/sdf isize=256 agcount=32, agsize=45776328 blks > > = sectsz=512 attr=0 > > data = bsize=4096 blocks=1464842496, imaxpct=25 > > = sunit=0 swidth=0 blks, unwritten=1 > > naming =version 2 bsize=4096 > > log =internal bsize=4096 blocks=32768, version=1 > > = sectsz=512 sunit=0 blks, lazy-count=0 > > realtime =none extsz=4096 blocks=0, rtextents=0 > > > > 2) The output of xfs_bmap in the lineitem.MYI table of the TPC-H > > workload is at one run: > > > > /mnt/test/mysql/tpch/lineitem.MYI: > > EXT: FILE-OFFSET BLOCK-RANGE AG AG-OFFSET TOTAL > > 0: [0..6344271]: 11352529416..11358873687 31 (72..6344343) 6344272 > > 1: [6344272..10901343]: 1464842608..1469399679 4 (112..4557183) 4557072 > > 2: [10901344..18439199]: 1831053200..1838591055 5 (80..7537935) 7537856 > > 3: [18439200..25311519]: 2197263840..2204136159 6 (96..6872415) 6872320 > > 4: [25311520..26660095]: 2563474464..2564823039 7 (96..1348671) 1348576 > > > > Given that all disk blocks are in units of 512-byte blocks, if I > > interpret the output > > correctly the first file is at block 1465352792 = 698.4GByte offset and > > the last block > > is at 5421.1GByte offset, meaning that this specific table is split over > > a 4,7TByte distance. > > The file started out in the last AG, and then had to wrap around, > because it hit the end of the filesystem. :) It was then somewhat > sequential in AGs 4,5,6,7 after that, though not perfectly so. > > This run was with a clean filesystem? Was the mountpoint > /mnt/test? XFS distributes new directories into new AGs (allocation > groups, or disk regions) for parallelism, and then files in those dirs > start populating the same AG. So if /mnt/test/mysql/tpch ended up in > the last AG (#31) then the file likely started there, too. For inode64, yes. For inode32, the first ag is derived from the mp->m_agfrotor and the xfs_rotorstep value. The rate at which mp->m_agfrotor increments for each new file is controlled by the /proc/sys/fs/xfs/rotorstep sysctl. Changing the value of the step will likely change the first AG location of the database in this test. Alternatively, copy the database file first so that it starts in a low AG. > Also, the "inode32" allocator biases data towards the end of the > filesystem, because inode numbers in xfs reflect their on-disk location, > and to keep inodes numbers below 2^32, it must save space in the lower > portions of the filesystem. You might want to re-test with a fresh > filesystem mounted with the "inode64" mount option. Or just use inode64 ;) > > > However, in another run (with a clean file system again) > > > > /mnt/test/mysql/tpch/lineitem.MYI: > > EXT: FILE-OFFSET BLOCK-RANGE AG AG-OFFSET > > TOTAL > > 0: [0..26660095]: 11352529416..11379189511 31 (72..26660167) > > 26660096 > > Hmm. > > > 3) For the copy, as i mentioned in my previous mail, i copied the > > database over nfs using the cp -R linux program. > > Thus, i believe all the files are copied sequentially, the one after the > > other, with no other concurrent write operations > > running at the background. The file-system was pristine before the cp > > with no files, and just the mount directory was > > created (all the other necessary files and directories are created from > > the cp program). > > IIRC, copies over NFS can affect xfs allocator performance, because > (IIRC) it tends to close the filehandle periodically and xfs loses the > allocator context. We used to have a filehandle cache which held them > open, but that went away some time ago. The filehandle cache was used in 2.4 to prevent cached inodes being torn down when NFS stops referencing it, only to have to rebuild it a few ms later when the next request comes in. The frequentteardown was what caused the problems on those kernels, which was why the cache helped prevent bad allocation patterns. That doesn't happen in 2.6 kernels, but it has other idiosyncracies... :) > Dave will probably correct significant swaths of this information for > me, though ;) Only minor bits ;) Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0+ruNp+25+fromorbit.com=david@internode.on.net Thu Jun 24 19:56:08 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_83 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5P0u8YA054365 for ; Thu, 24 Jun 2010 19:56:08 -0500 X-ASG-Debug-ID: 1277427794-05ab00f30000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id A3087112E97B for ; Thu, 24 Jun 2010 18:03:14 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id TxGkthzap62HLIni for ; Thu, 24 Jun 2010 18:03:14 -0700 (PDT) Received: from dastard (unverified [121.45.182.52]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 29274249-1927428 for multiple; Fri, 25 Jun 2010 10:28:48 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1ORxFc-0000I3-KN; Fri, 25 Jun 2010 10:58:36 +1000 Date: Fri, 25 Jun 2010 10:58:36 +1000 From: Dave Chinner To: Yannis Klonatos Cc: Eric Sandeen , andi@firstfloor.org, xfs@oss.sgi.com X-ASG-Orig-Subj: Re: XFS peculiar behavior Subject: Re: XFS peculiar behavior Message-ID: <20100625005836.GT6590@dastard> References: <4C21B9AF.9010307@ics.forth.gr> <20100623231700.GP6590@dastard> <4C236791.1030709@ics.forth.gr> <4C2377ED.8090300@sandeen.net> <4C237B4E.8030606@ics.forth.gr> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <4C237B4E.8030606@ics.forth.gr> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1277427795 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33469 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu, Jun 24, 2010 at 06:35:42PM +0300, Yannis Klonatos wrote: > στις 6/24/2010 6:21 PM, O/H Eric Sandeen έγÏαψε: > >On 06/24/2010 09:11 AM, Yannis Klonatos wrote: > >>2) The output of xfs_bmap in the lineitem.MYI table of the TPC-H > >>workload is at one run: > >> > >>/mnt/test/mysql/tpch/lineitem.MYI: > >> EXT: FILE-OFFSET BLOCK-RANGE AG AG-OFFSET TOTAL > >> 0: [0..6344271]: 11352529416..11358873687 31 (72..6344343) 6344272 > >> 1: [6344272..10901343]: 1464842608..1469399679 4 (112..4557183) 4557072 > >> 2: [10901344..18439199]: 1831053200..1838591055 5 (80..7537935) 7537856 > >> 3: [18439200..25311519]: 2197263840..2204136159 6 (96..6872415) 6872320 > >> 4: [25311520..26660095]: 2563474464..2564823039 7 (96..1348671) 1348576 > >> > >>Given that all disk blocks are in units of 512-byte blocks, if I > >>interpret the output > >>correctly the first file is at block 1465352792 = 698.4GByte offset and > >>the last block > >>is at 5421.1GByte offset, meaning that this specific table is split over > >>a 4,7TByte distance. > >The file started out in the last AG, and then had to wrap around, > >because it hit the end of the filesystem. :) It was then somewhat > >sequential in AGs 4,5,6,7 after that, though not perfectly so. > > > >This run was with a clean filesystem? Was the mountpoint > >/mnt/test? XFS distributes new directories into new AGs (allocation > >groups, or disk regions) for parallelism, and then files in those dirs > >start populating the same AG. So if /mnt/test/mysql/tpch ended up in > >the last AG (#31) then the file likely started there, too. > > Ok. Your argument makes a lot of sense. However, this is a clean > file system (mount point /mnt/test), and > I am certain that the files copied before the aforementioned index > file (lineitem.MYI) require 28GByte space > in total. So, this still raises the question why XFS splitted these > files in a way that caused the whole file system > space to be "covered", and the lineitem file to be placed starting > at the end of the FS (as you mentioned). XFS spreads allocation out over it's entire address space to enable utilisation of all the disks backing the filesystem (think linear concatenation of devices). This is sub-optimal for a small number of spindles, but XFS is designed to scale to hundreds to thousands of disks effectively. > >>4) The version of xfsprogs is 2.9.4 (acquired with xfs_info -v) and the > >>version of the kernel is 2.6.18-164.11.1.el5. > >Ah! A Red Hat kernel; have you asked your Red Hat support folks for > >help on this issue? > > I suppose that they will redirect me back to you, won't they? :-) Or me ;) Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0+NyVv+25+fromorbit.com=dave@internode.on.net Thu Jun 24 20:06:17 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5P16GPD054651 for ; Thu, 24 Jun 2010 20:06:17 -0500 X-ASG-Debug-ID: 1277428138-3be703bc0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id A634D402769 for ; Thu, 24 Jun 2010 18:08:58 -0700 (PDT) Received: from mail.internode.on.net (bld-mail15.adl6.internode.on.net [150.101.137.100]) by cuda.sgi.com with ESMTP id ONjF7hO5sQGMXFBU for ; Thu, 24 Jun 2010 18:08:58 -0700 (PDT) Received: from dastard (unverified [121.45.182.52]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 17569317-1927428 for ; Fri, 25 Jun 2010 10:38:57 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1ORxPS-0000Iy-25 for xfs@oss.sgi.com; Fri, 25 Jun 2010 11:08:46 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1ORxPM-00075U-UM for xfs@oss.sgi.com; Fri, 25 Jun 2010 11:08:40 +1000 From: Dave Chinner To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH] xfs: unregister inode shrinker before freeing filesystem structures Subject: [PATCH] xfs: unregister inode shrinker before freeing filesystem structures Date: Fri, 25 Jun 2010 11:08:40 +1000 Message-Id: <1277428120-27216-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 X-Barracuda-Connect: bld-mail15.adl6.internode.on.net[150.101.137.100] X-Barracuda-Start-Time: 1277428139 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33470 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner Currently we don't remove the XFS mount from the shrinker list until late in the unmount path. By this time, we have already torn down the internals of the filesystem (e.g. the per-ag structures), and hence if the shrinker is executed between the teardown and the unregistering, the shrinker will get NULL per-ag structure pointers and panic trying to dereference them. Fix this by removingthe xfs mount from the shrinker list before tearing down it's internal structures. Signed-off-by: Dave Chinner --- fs/xfs/linux-2.6/xfs_super.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c index e3de46c..4605cd4 100644 --- a/fs/xfs/linux-2.6/xfs_super.c +++ b/fs/xfs/linux-2.6/xfs_super.c @@ -1156,9 +1156,13 @@ xfs_fs_put_super( XFS_bflush(mp->m_ddev_targp); + /* + * Unregister the memory shrinker before we tear down the mount + * structure so we don't have memory reclaim racing with us here. + */ + xfs_inode_shrinker_unregister(mp); xfs_unmountfs(mp); xfs_freesb(mp); - xfs_inode_shrinker_unregister(mp); xfs_icsb_destroy_counters(mp); xfs_close_devices(mp); xfs_free_fsname(mp); -- 1.7.1 From SRS0+I08u+25+fromorbit.com=david@internode.on.net Thu Jun 24 20:13:10 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_36 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5P1D9L7054950 for ; Thu, 24 Jun 2010 20:13:09 -0500 X-ASG-Debug-ID: 1277428550-3ba903e70000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id F03DF402A12 for ; Thu, 24 Jun 2010 18:15:50 -0700 (PDT) Received: from mail.internode.on.net (bld-mail14.adl6.internode.on.net [150.101.137.99]) by cuda.sgi.com with ESMTP id boz8qj86saR85fDQ for ; Thu, 24 Jun 2010 18:15:50 -0700 (PDT) Received: from dastard (unverified [121.45.182.52]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 29468095-1927428 for multiple; Fri, 25 Jun 2010 10:45:48 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1ORxWF-0000Jl-Hp; Fri, 25 Jun 2010 11:15:47 +1000 Date: Fri, 25 Jun 2010 11:15:47 +1000 From: Dave Chinner To: Yannis Klonatos Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Metadata hit ratio Subject: Re: Metadata hit ratio Message-ID: <20100625011547.GU6590@dastard> References: <4C23C074.5080100@ics.forth.gr> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C23C074.5080100@ics.forth.gr> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail14.adl6.internode.on.net[150.101.137.99] X-Barracuda-Start-Time: 1277428551 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0011 1.0000 -2.0141 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.91 X-Barracuda-Spam-Status: No, SCORE=-1.91 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33470 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu, Jun 24, 2010 at 11:30:44PM +0300, Yannis Klonatos wrote: > Hello all, > > Along with my other (yet pending :-( ) question/issue, I > have another question (i hope this is the last :-) ) > now. > I would like to measure the hit ratio of the metadata > accesses of XFS (inode+internal buffers). It is my > understanding that XFS uses its own data structures, and does not > rely on the buffercache mechanisms of > the Linux kernel. However, even doing so, there may be cases that > the metadata may not fit in the RAM, > and I/O operations are required to fetch them from the underlying > storage. I have found out that there are > two places that XFS uses the submit_bio function. If i add some > counters there, would it suffice to measure all > the metadata misses? > Or is this information available in one (or more) of the > xfs_stats counters? And if so, what do i need to sum > up in order to get the total metadata hit and miss ratio? Start by looking here: http://xfs.org/index.php/Runtime_Stats But you probably want some of the buf counters which are undocumented on that page, so a rough description of them is (from PCP): $ pminfo -t xfs.buffer xfs.buffer.get [number of request buffer calls] xfs.buffer.create [number of buffers created] xfs.buffer.get_locked [number of requests for a locked buffer which succeeded] xfs.buffer.get_locked_waited [number of requests for a locked buffer which waited] xfs.buffer.busy_locked [number of non-blocking requests for a locked buffer which failed] xfs.buffer.miss_locked [number of requests for a locked buffer which failed due to no buffer] xfs.buffer.page_retries [number of retry attempts when allocating a page for insertion in a buffer] xfs.buffer.page_found [number of hits in the page cache when looking for a page] xfs.buffer.get_read [number of buffer get calls requiring immediate device reads] So you might be able to get something from those stats. Cheers, Dave. -- Dave Chinner david@fromorbit.com From sandeen@sandeen.net Thu Jun 24 23:09:26 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5P49Qk2067749 for ; Thu, 24 Jun 2010 23:09:26 -0500 X-ASG-Debug-ID: 1277439128-5a91007a0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.sandeen.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 05FE51D60C83 for ; Thu, 24 Jun 2010 21:12:08 -0700 (PDT) Received: from mail.sandeen.net (64-131-60-146.usfamily.net [64.131.60.146]) by cuda.sgi.com with ESMTP id 4RTIaJ0yEZOCKz04 for ; Thu, 24 Jun 2010 21:12:08 -0700 (PDT) Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sandeen.net (Postfix) with ESMTP id 9266C49632BB; Thu, 24 Jun 2010 23:12:07 -0500 (CDT) Message-ID: <4C242C97.8060506@sandeen.net> Date: Thu, 24 Jun 2010 23:12:07 -0500 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.24 (Macintosh/20100228) MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfs: unregister inode shrinker before freeing filesystem structures Subject: Re: [PATCH] xfs: unregister inode shrinker before freeing filesystem structures References: <1277428120-27216-1-git-send-email-david@fromorbit.com> In-Reply-To: <1277428120-27216-1-git-send-email-david@fromorbit.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: 64-131-60-146.usfamily.net[64.131.60.146] X-Barracuda-Start-Time: 1277439129 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33482 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Dave Chinner wrote: > From: Dave Chinner > > Currently we don't remove the XFS mount from the shrinker list until late in > the unmount path. By this time, we have already torn down the internals of the > filesystem (e.g. the per-ag structures), and hence if the shrinker is executed > between the teardown and the unregistering, the shrinker will get NULL per-ag > structure pointers and panic trying to dereference them. > > Fix this by removingthe xfs mount from the shrinker list before tearing down > it's internal structures. > > Signed-off-by: Dave Chinner Looks right to me, and is more symmetric with setup I think. Reviewed-by: Eric Sandeen > --- > fs/xfs/linux-2.6/xfs_super.c | 6 +++++- > 1 files changed, 5 insertions(+), 1 deletions(-) > > diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c > index e3de46c..4605cd4 100644 > --- a/fs/xfs/linux-2.6/xfs_super.c > +++ b/fs/xfs/linux-2.6/xfs_super.c > @@ -1156,9 +1156,13 @@ xfs_fs_put_super( > > XFS_bflush(mp->m_ddev_targp); > > + /* > + * Unregister the memory shrinker before we tear down the mount > + * structure so we don't have memory reclaim racing with us here. > + */ > + xfs_inode_shrinker_unregister(mp); > xfs_unmountfs(mp); > xfs_freesb(mp); > - xfs_inode_shrinker_unregister(mp); > xfs_icsb_destroy_counters(mp); > xfs_close_devices(mp); > xfs_free_fsname(mp); From BATV+f4c47461274eedfc3678+2497+infradead.org+hch@bombadil.srs.infradead.org Fri Jun 25 01:33:33 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5P6XVYf133128 for ; Fri, 25 Jun 2010 01:33:33 -0500 X-ASG-Debug-ID: 1277447774-680102a90000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 9324240319C for ; Thu, 24 Jun 2010 23:36:14 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id H8AiEmiaCM3qBQmO for ; Thu, 24 Jun 2010 23:36:14 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OS2WI-0001pR-PH; Fri, 25 Jun 2010 06:36:10 +0000 Date: Fri, 25 Jun 2010 02:36:10 -0400 From: Christoph Hellwig To: Jan Kara Cc: Christoph Hellwig , linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com, linux-ext4@vger.kernel.org X-ASG-Orig-Subj: Re: [PATCH 1/2] direct-io: move aio_complete into ->end_io Subject: Re: [PATCH 1/2] direct-io: move aio_complete into ->end_io Message-ID: <20100625063610.GA4128@infradead.org> References: <20100622122144.302857146@bombadil.infradead.org> <20100622123113.011371666@bombadil.infradead.org> <20100624215922.GE3345@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100624215922.GE3345@quack.suse.cz> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277447774 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu, Jun 24, 2010 at 11:59:22PM +0200, Jan Kara wrote: > Umm, I don't get this. Looking at the ->end_io callback it has been > always called with i_alloc_sem held. It's only aio_complete() which will > be called with i_alloc_sem held after your changes. Or am I missing > something? No, that part of the commit message is flat out wrong. Not sure what I was thinking when I wrote it. > Moreover the async testing you do does not seem to be completely right. > dio->is_async is a flag that controls whether dio code waits for IO to be > completed or not. In particular it is not set for AIO that spans beyond > current i_size so it does not seem to be exactly what you need (at least > for ext4 it isn't). I think that is_sync_kiocb() is a test that should be > used to recognize AIO - and that has an advantage that you don't have to > pass the is_async flag around. No. is_sync_kiocb() means the ioctb was not intended as sync I/O from the start. But we can only call aio_complete when we returned -EIOCBQUEUED from ->aio_read/write. Take a look at the comment near the end of direct_io_worker(). AIO beyond i_size is not supported using blockdev_direct_IO yet. I think I can add it fairly easily for XFS, but that will require passing a new DIO_* flag to __blockdev_direct_IO which will make is_async true for writes beyond i_size. From jack@suse.cz Fri Jun 25 05:33:35 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5PAXYpv140158 for ; Fri, 25 Jun 2010 05:33:35 -0500 X-ASG-Debug-ID: 1277462176-2ac800ac0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mx2.suse.de (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 7AD8F1D6139F for ; Fri, 25 Jun 2010 03:36:17 -0700 (PDT) Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id ZllTy3DxKRehNZEO for ; Fri, 25 Jun 2010 03:36:17 -0700 (PDT) Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.221.2]) by mx2.suse.de (Postfix) with ESMTP id 2636886A2E; Fri, 25 Jun 2010 12:36:16 +0200 (CEST) Received: by quack.suse.cz (Postfix, from userid 10005) id CEF602B1BE8; Fri, 25 Jun 2010 12:35:50 +0200 (CEST) Date: Fri, 25 Jun 2010 12:35:50 +0200 From: Jan Kara To: Christoph Hellwig Cc: Jan Kara , linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com, linux-ext4@vger.kernel.org X-ASG-Orig-Subj: Re: [PATCH 1/2] direct-io: move aio_complete into ->end_io Subject: Re: [PATCH 1/2] direct-io: move aio_complete into ->end_io Message-ID: <20100625103550.GA3586@quack.suse.cz> References: <20100622122144.302857146@bombadil.infradead.org> <20100622123113.011371666@bombadil.infradead.org> <20100624215922.GE3345@quack.suse.cz> <20100625063610.GA4128@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100625063610.GA4128@infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: cantor2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1277462177 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33508 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri 25-06-10 02:36:10, Christoph Hellwig wrote: > On Thu, Jun 24, 2010 at 11:59:22PM +0200, Jan Kara wrote: > > Moreover the async testing you do does not seem to be completely right. > > dio->is_async is a flag that controls whether dio code waits for IO to be > > completed or not. In particular it is not set for AIO that spans beyond > > current i_size so it does not seem to be exactly what you need (at least > > for ext4 it isn't). I think that is_sync_kiocb() is a test that should be > > used to recognize AIO - and that has an advantage that you don't have to > > pass the is_async flag around. > > No. is_sync_kiocb() means the ioctb was not intended as sync I/O from > the start. But we can only call aio_complete when we returned > -EIOCBQUEUED from ->aio_read/write. Take a look at the comment near the > end of direct_io_worker(). Ah, I see. Thanks for explanation. It's ugly but I also don't see a nicer way how to handle this. Honza -- Jan Kara SUSE Labs, CR From prvs=0792616bd9=E.Lee@herts.ac.uk Fri Jun 25 16:02:14 2010 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5PL2DeZ158774 for ; Fri, 25 Jun 2010 16:02:13 -0500 X-ASG-Debug-ID: 1277499892-12a9006b0000-w1Z2WR X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from kumbha.herts.ac.uk (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 151F71E161FE; Fri, 25 Jun 2010 14:04:53 -0700 (PDT) Received: from kumbha.herts.ac.uk (kumbha.herts.ac.uk [147.197.215.115]) by cuda.sgi.com with ESMTP id jqzSTNlW2ECYfTla; Fri, 25 Jun 2010 14:04:53 -0700 (PDT) Received: from prayer by kumbha.herts.ac.uk with local (Exim 4.68) (envelope-from ) id 1OSFjN-0001qD-0j; Fri, 25 Jun 2010 21:42:33 +0100 From: "Dupas Pascaline (Mrs.)" Reply-To: alex.lundberg@grants.globalrgt.org X-ASG-Orig-Subj: Funding Opportunity Announcement Subject: Funding Opportunity Announcement Date: 25 Jun 2010 21:42:32 +0100 X-Mailer: Prayer v1.0.18 X-Originating-IP: [84.19.165.217] Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="--559023410-1251336619-1277498552=:15176" X-KU-UH-MailScanner-Information: Please contact the HelpDesk for more information X-HE-UH-MailScanner: No Virus detected X-KU-UH-MailScanner-From: e.lee@herts.ac.uk X-Spam-Status: No X-Barracuda-Connect: kumbha.herts.ac.uk[147.197.215.115] X-Barracuda-Start-Time: 1277499895 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0802 1.0000 -1.5125 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: 0.07 X-Barracuda-Spam-Status: No, SCORE=0.07 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=MISSING_HEADERS, TO_CC_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33550 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 1.58 MISSING_HEADERS Missing To: header 0.00 TO_CC_NONE No To: or Cc: header To: undisclosed-recipients:; X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean This message is in MIME format. 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tests=BAYES_00,J_CHICKENPOX_43, J_CHICKENPOX_63,LOCAL_GNU_PATCH autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5QBeqTN193638 for ; Sat, 26 Jun 2010 06:40:53 -0500 X-ASG-Debug-ID: 1277552615-1f2103500000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 138C0154DCE5 for ; Sat, 26 Jun 2010 04:43:35 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id EBA0RgVRsSwC7MaO for ; Sat, 26 Jun 2010 04:43:35 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OSTnK-00043f-8e for xfs@oss.sgi.com; Sat, 26 Jun 2010 11:43:34 +0000 Date: Sat, 26 Jun 2010 07:43:34 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH] xfstests: test the aio unwrittent extent conversion race Subject: [PATCH] xfstests: test the aio unwrittent extent conversion race Message-ID: <20100626114334.GA15157@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277552616 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Signed-off-by: Christoph Hellwig Index: xfstests-dev/239 =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ xfstests-dev/239 2010-06-26 11:38:22.000000000 +0000 @@ -0,0 +1,58 @@ +#! /bin/bash +# FS QA Test No. 239 +# +# Read from a sparse file immedialy after filling a hole to test for races +# in unwritten extent conversion. +# +#----------------------------------------------------------------------- +# Copyright (c) 2010 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 +#----------------------------------------------------------------------- +# +# creator +owner=dchinner@redhat.com + +seq=`basename $0` +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 $TEST_DIR/tst-aio-dio-sparse-unwritten +} + +# get standard environment, filters and checks +. ./common.rc +. ./common.filter + +_supported_fs generic +_supported_os Linux + +AIO_TEST=src/aio-dio-regress/aio-dio-hole-filling-race +[ -x $AIO_TEST ] || _notrun "$AIO_TEST not built" + +echo "Silence is golden" + +for i in `seq 1 500`; do + $AIO_TEST $TEST_DIR/tst-aio-dio-hole-filling-race || break +done + +status=$? +exit Index: xfstests-dev/239.out =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ xfstests-dev/239.out 2010-06-26 11:38:47.000000000 +0000 @@ -0,0 +1,2 @@ +QA output created by 239 +Silence is golden Index: xfstests-dev/group =================================================================== --- xfstests-dev.orig/group 2010-06-26 11:35:07.000000000 +0000 +++ xfstests-dev/group 2010-06-26 11:35:18.000000000 +0000 @@ -352,3 +352,4 @@ deprecated 236 auto quick metadata 237 auto quick acl 238 auto quick metadata ioctl +239 auto aio rw Index: xfstests-dev/src/aio-dio-regress/aio-dio-hole-filling-race.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ xfstests-dev/src/aio-dio-regress/aio-dio-hole-filling-race.c 2010-06-26 11:39:40.000000000 +0000 @@ -0,0 +1,123 @@ +/* + * Read from a sparse file immedialy after filling a hole to test for races + * in unwritten extent conversion. + * + * Copyright (C) 2010 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; 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. + */ +#include +#include +#include +#include +#include +#include +#include + +#include + +#define BUF_SIZE 4096 +#define IO_PATTERN 0xab + +int main(int argc, char *argv[]) +{ + struct io_context *ctx = NULL; + struct io_event ev; + struct iocb iocb, *iocbs[] = { &iocb }; + void *buf; + char cmp_buf[BUF_SIZE]; + int fd, err = 0; + + fd = open(argv[1], O_DIRECT | O_CREAT | O_TRUNC | O_RDWR, 0600); + if (fd == -1) { + perror("open"); + return 1; + } + + err = posix_memalign(&buf, BUF_SIZE, BUF_SIZE); + if (err) { + fprintf(stderr, "error %s during %s\n", + strerror(-err), + "posix_memalign"); + return 1; + } + memset(buf, IO_PATTERN, BUF_SIZE); + memset(cmp_buf, IO_PATTERN, BUF_SIZE); + + /* + * Truncate to some random large file size. Just make sure + * it's not smaller than our I/O size. + */ + if (ftruncate(fd, 1024 * 1024 * 1024) < 0) { + perror("ftruncate"); + return 1; + } + + + /* + * Do a simple 4k write into a hole using aio. + */ + err = io_setup(1, &ctx); + if (err) { + fprintf(stderr, "error %s during %s\n", + strerror(-err), + "io_setup"); + return 1; + } + + io_prep_pwrite(&iocb, fd, buf, BUF_SIZE, 0); + + err = io_submit(ctx, 1, iocbs); + if (err != 1) { + fprintf(stderr, "error %s during %s\n", + strerror(-err), + "io_submit"); + return 1; + } + + err = io_getevents(ctx, 1, 1, &ev, NULL); + if (err != 1) { + fprintf(stderr, "error %s during %s\n", + strerror(-err), + "io_getevents"); + return 1; + } + + /* + * And then read it back. + * + * Using pread to keep it simple, but AIO has the same effect. + */ + if (pread(fd, buf, BUF_SIZE, 0) != BUF_SIZE) { + perror("pread"); + return 1; + } + + /* + * And depending on the machine we'll just get zeroes back quite + * often here. That's because the unwritten extent conversion + * hasn't finished. + */ + if (memcmp(buf, cmp_buf, BUF_SIZE)) { + unsigned long long *ubuf = (unsigned long long *)buf; + int i; + + for (i = 0; i < BUF_SIZE / sizeof(unsigned long long); i++) + printf("%d: 0x%llx\n", i, ubuf[i]); + return 1; + } + + return 0; +} From BATV+38ce77434e3566a797e7+2498+infradead.org+hch@bombadil.srs.infradead.org Sat Jun 26 06:42:32 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5QBgWJ4193677 for ; Sat, 26 Jun 2010 06:42:32 -0500 X-ASG-Debug-ID: 1277552716-0920003f0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 7395F407130 for ; Sat, 26 Jun 2010 04:45:16 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id yvhxoR5OOOtibc2J for ; Sat, 26 Jun 2010 04:45:16 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OSTov-000791-C3; Sat, 26 Jun 2010 11:45:13 +0000 Date: Sat, 26 Jun 2010 07:45:13 -0400 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfs_db: check for valid inode data pointer before dereferencing Subject: Re: [PATCH] xfs_db: check for valid inode data pointer before dereferencing Message-ID: <20100626114513.GB15157@infradead.org> References: <1277418283-23381-1-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1277418283-23381-1-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277552716 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jun 25, 2010 at 08:24:43AM +1000, Dave Chinner wrote: > From: Dave Chinner > > When processing an inode, the code checks various flags to determine > whether to output messages or not. When checking the CLI provided > inode numbers to be verbose about, we fail to check if the inode > data structre returned is valid or not before dereferencing it. > Hence running xfs_check with the "serious errors only" flag, xfs_db > will crash. Fix up the "should we output" logic to be safe. > > Signed-off-by: Dave Chinner Looks good, Reviewed-by: Christoph Hellwig From BATV+38ce77434e3566a797e7+2498+infradead.org+hch@bombadil.srs.infradead.org Sat Jun 26 06:43:22 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5QBhMo3193785 for ; Sat, 26 Jun 2010 06:43:22 -0500 X-ASG-Debug-ID: 1277552766-6abb02740000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id DA87A407138 for ; Sat, 26 Jun 2010 04:46:06 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id 0KV2lPwFHQqmMQSl for ; Sat, 26 Jun 2010 04:46:06 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OSTpl-0000wD-Rj; Sat, 26 Jun 2010 11:46:05 +0000 Date: Sat, 26 Jun 2010 07:46:05 -0400 From: Christoph Hellwig To: Stanczak Slawomir Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs_quota report problem Subject: Re: xfs_quota report problem Message-ID: <20100626114605.GC15157@infradead.org> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277552766 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu, Jun 24, 2010 at 11:02:02AM +0200, Stanczak Slawomir wrote: > Hi, > > I use xfs on my Debian Linux system. I have one question. > How can I display users with exceeded soft blocks limit only? > > I can do: > > xfs_quota -x -c report /home | grep day > > xfs_quota -x -c report /home | grep day | awk '{print $1}' > > but the solution isn't a good idea. > > Have you any other idea? I don't think it's implemented. I can add it to xfs_quota for you. Do you have an example of a quota tool that supports such functionality so that we can have a similar interface? From BATV+38ce77434e3566a797e7+2498+infradead.org+hch@bombadil.srs.infradead.org Sat Jun 26 06:45:47 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5QBjldE193867 for ; Sat, 26 Jun 2010 06:45:47 -0500 X-ASG-Debug-ID: 1277553183-33a9025a0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id E53B0131CD3B for ; Sat, 26 Jun 2010 04:53:03 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id oYpyKFQFUbyJRtxb for ; Sat, 26 Jun 2010 04:53:03 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OSTs6-0004M9-DD; Sat, 26 Jun 2010 11:48:30 +0000 Date: Sat, 26 Jun 2010 07:48:30 -0400 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfs: unregister inode shrinker before freeing filesystem structures Subject: Re: [PATCH] xfs: unregister inode shrinker before freeing filesystem structures Message-ID: <20100626114830.GD15157@infradead.org> References: <1277428120-27216-1-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1277428120-27216-1-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277553183 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jun 25, 2010 at 11:08:40AM +1000, Dave Chinner wrote: > From: Dave Chinner > > Currently we don't remove the XFS mount from the shrinker list until late in > the unmount path. By this time, we have already torn down the internals of the > filesystem (e.g. the per-ag structures), and hence if the shrinker is executed > between the teardown and the unregistering, the shrinker will get NULL per-ag > structure pointers and panic trying to dereference them. > > Fix this by removingthe xfs mount from the shrinker list before tearing down > it's internal structures. > > Signed-off-by: Dave Chinner > --- > fs/xfs/linux-2.6/xfs_super.c | 6 +++++- > 1 files changed, 5 insertions(+), 1 deletions(-) > > diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c > index e3de46c..4605cd4 100644 > --- a/fs/xfs/linux-2.6/xfs_super.c > +++ b/fs/xfs/linux-2.6/xfs_super.c > @@ -1156,9 +1156,13 @@ xfs_fs_put_super( > > XFS_bflush(mp->m_ddev_targp); > > + /* > + * Unregister the memory shrinker before we tear down the mount > + * structure so we don't have memory reclaim racing with us here. > + */ > + xfs_inode_shrinker_unregister(mp); Given that we register the shrinker after syncd is started for we should also tear it down as the very first thing for symmetry resons. From xfs@tlinx.org Sat Jun 26 20:08:19 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5R18IHh215663 for ; Sat, 26 Jun 2010 20:08:19 -0500 X-ASG-Debug-ID: 1277601059-470b00e90000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from Ishtar.sc.tlinx.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id C93321555A0A for ; Sat, 26 Jun 2010 18:11:00 -0700 (PDT) Received: from Ishtar.sc.tlinx.org (ishtar.tlinx.org [173.164.175.65]) by cuda.sgi.com with ESMTP id AnEEQGjVIQxCAxHh for ; Sat, 26 Jun 2010 18:11:00 -0700 (PDT) Received: from [192.168.3.12] (Athenae [192.168.3.12]) by Ishtar.sc.tlinx.org (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5R1AtIB027369 for ; Sat, 26 Jun 2010 18:10:57 -0700 Message-ID: <4C26A51F.8020909@tlinx.org> Date: Sat, 26 Jun 2010 18:10:55 -0700 From: "Linda A. Walsh" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.8.1.24) Gecko/20100228 Lightning/0.9 Thunderbird/2.0.0.24 Mnenhy/0.7.6.666 MIME-Version: 1.0 To: xfs-oss X-ASG-Orig-Subj: WARNING xfsdump [still] Cannot allocate memory for list of [root|non-root] attributes for nondir ino xxyz Subject: WARNING xfsdump [still] Cannot allocate memory for list of [root|non-root] attributes for nondir ino xxyz X-Stationery: 0.5.1 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: ishtar.tlinx.org[173.164.175.65] X-Barracuda-Start-Time: 1277601062 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.82 X-Barracuda-Spam-Status: No, SCORE=-1.82 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=PR0N_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33662 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.20 PR0N_SUBJECT Subject has letters around special characters (pr0n) X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean FWIW -- that bug I mentioned a few weeks back that I thought was gone in the latest CVS of xfsdump -- isn't. It seems less frequent (maybe external attributes have been getting slow weeded out as they fail -- if it is random). What's 'unique' about this dump -- I just copied from one partition to another, to resize the first, and this is on the copy back. I.e. Stuff that xfs-restore just wrote has problems being read. First problem was about 30 minutes into the 'copy' Then about 2 more in the next half hour -- so not real often. This is with kernel 2.6.34. xfstools were downloaded a few weeks ago, so fairly recent. xfsdump: WARNING: could not get list of non-root attributes for nondir ino 2428439: Cannot allocate memory (12) in @ 108 MB/s, out @ 0.0 kB/s, 116 GB total, buffer 6% fullxfsdump: status at 02:25:06: 918808/2250704 files dumped, 54.3% data dumped, 1800 seconds elapsed in @ 14.0 MB/s, out @ 14.0 MB/s, 123 GB total, buffer 0% fullxfsdump: status at 02:30:06: 975579/2250704 files dumped, 57.6% data dumped, 2100 seconds elapsed in @ 0.0 kB/s, out @ 0.0 kB/s, 135 GB total, buffer 14% fullxfsdump: status at 02:35:07: 1062278/2250704 files dumped, 63.2% data dumped, 2401 seconds elapsed in @ 226 MB/s, out @ 157 MB/s, 152 GB total, buffer 91% fullxfsdump: status at 02:40:06: 1191037/2250704 files dumped, 71.5% data dumped, 2700 seconds elapsed in @ 0.0 kB/s, out @ 0.0 kB/s, 169 GB total, buffer 0% fullxfsdump: status at 02:45:06: 1321397/2250704 files dumped, 79.2% data dumped, 3000 seconds elapsed in @ 0.0 kB/s, out @ 120 MB/s, 176 GB total, buffer 30% full xfsdump: WARNING: could not get list of secure attributes for nondir ino 3929093: Cannot allocate memory (12) in @ 0.0 kB/s, out @ 118 MB/s, 177 GB total, buffer 7% full xfsdump: WARNING: could not get list of non-root attributes for nondir ino 3929095: Cannot allocate memory (12) From SRS0+7SU6+28+fromorbit.com=david@internode.on.net Sun Jun 27 21:25:16 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5S2PFoG259911 for ; Sun, 27 Jun 2010 21:25:16 -0500 X-ASG-Debug-ID: 1277692078-300d00590000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id CF4B5409BAE for ; Sun, 27 Jun 2010 19:27:58 -0700 (PDT) Received: from mail.internode.on.net (bld-mail16.adl2.internode.on.net [150.101.137.101]) by cuda.sgi.com with ESMTP id svRg4f4vrTahQquY for ; Sun, 27 Jun 2010 19:27:58 -0700 (PDT) Received: from dastard (unverified [121.91.222.126]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 29423604-1927428 for ; Mon, 28 Jun 2010 11:57:57 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OT44W-0003kH-Ib; Mon, 28 Jun 2010 12:27:44 +1000 Date: Mon, 28 Jun 2010 12:27:44 +1000 From: Dave Chinner To: "Linda A. Walsh" Cc: xfs-oss X-ASG-Orig-Subj: Re: WARNING xfsdump [still] Cannot allocate memory for list of [root|non-root] attributes for nondir ino xxyz Subject: Re: WARNING xfsdump [still] Cannot allocate memory for list of [root|non-root] attributes for nondir ino xxyz Message-ID: <20100628022744.GX6590@dastard> References: <4C26A51F.8020909@tlinx.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C26A51F.8020909@tlinx.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail16.adl2.internode.on.net[150.101.137.101] X-Barracuda-Start-Time: 1277692079 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.82 X-Barracuda-Spam-Status: No, SCORE=-1.82 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=PR0N_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33764 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.20 PR0N_SUBJECT Subject has letters around special characters (pr0n) X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Sat, Jun 26, 2010 at 06:10:55PM -0700, Linda A. Walsh wrote: > > FWIW -- that bug I mentioned a few weeks back that I thought was > gone in the latest CVS > of xfsdump -- isn't. > > It seems less frequent (maybe external attributes have been getting > slow weeded out as > they fail -- if it is random). > > What's 'unique' about this dump -- I just copied from one partition > to another, to resize the first, > and this is on the copy back. > > I.e. Stuff that xfs-restore just wrote has problems being read. > > First problem was about 30 minutes into the 'copy' > > Then about 2 more in the next half hour -- so not real often. > > This is with kernel 2.6.34. > > xfstools were downloaded a few weeks ago, so fairly recent. > > xfsdump: WARNING: could not get list of non-root attributes for > nondir ino 2428439: Cannot allocate memory (12) > in @ 108 MB/s, out @ 0.0 kB/s, 116 GB total, buffer 6% > fullxfsdump: status at 02:25:06: 918808/2250704 files dumped, 54.3% > data dumped, 1800 seconds elapsed > in @ 14.0 MB/s, out @ 14.0 MB/s, 123 GB total, buffer 0% > fullxfsdump: status at 02:30:06: 975579/2250704 files dumped, 57.6% > data dumped, 2100 seconds elapsed > in @ 0.0 kB/s, out @ 0.0 kB/s, 135 GB total, buffer 14% > fullxfsdump: status at 02:35:07: 1062278/2250704 files dumped, 63.2% > data dumped, 2401 seconds elapsed > in @ 226 MB/s, out @ 157 MB/s, 152 GB total, buffer 91% > fullxfsdump: status at 02:40:06: 1191037/2250704 files dumped, 71.5% > data dumped, 2700 seconds elapsed > in @ 0.0 kB/s, out @ 0.0 kB/s, 169 GB total, buffer 0% > fullxfsdump: status at 02:45:06: 1321397/2250704 files dumped, 79.2% > data dumped, 3000 seconds elapsed > in @ 0.0 kB/s, out @ 120 MB/s, 176 GB total, buffer 30% full > > xfsdump: WARNING: could not get list of secure attributes for nondir > ino 3929093: Cannot allocate memory (12) > in @ 0.0 kB/s, out @ 118 MB/s, 177 GB total, buffer 7% full > > xfsdump: WARNING: could not get list of non-root attributes for > nondir ino 3929095: Cannot allocate memory (12) Can you get a list of all the attributes and their sizes on the inodes xfsdump is complaining about? Cheers, Dave. -- Dave Chinner david@fromorbit.com From Steffen.Knauf@gmx.net Mon Jun 28 04:27:08 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5S9R7Xq019717 for ; Mon, 28 Jun 2010 04:27:08 -0500 X-ASG-Debug-ID: 1277717673-1b2800700000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.gmx.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with SMTP id 66CFE14B1537 for ; Mon, 28 Jun 2010 02:34:33 -0700 (PDT) Received: from mail.gmx.net (mail.gmx.net [213.165.64.20]) by cuda.sgi.com with SMTP id 5oFAmNF8nJoUzL5R for ; Mon, 28 Jun 2010 02:34:33 -0700 (PDT) Received: (qmail 32701 invoked by uid 0); 28 Jun 2010 09:29:50 -0000 Received: from 195.122.130.2 by www171.gmx.net with HTTP; Mon, 28 Jun 2010 11:29:48 +0200 (CEST) Content-Type: text/plain; charset="utf-8" Date: Mon, 28 Jun 2010 11:29:48 +0200 From: "Steffen Knauf" Message-ID: <20100628092948.323370@gmx.net> MIME-Version: 1.0 X-ASG-Orig-Subj: Kernel Panic: Assertion failed: __xfs_iflags_test(ip, XFS_IRECLAIMABLE), file: fs/xfs/linux-2.6/xfs_sync.c, line: 727 Subject: Kernel Panic: Assertion failed: __xfs_iflags_test(ip, XFS_IRECLAIMABLE), file: fs/xfs/linux-2.6/xfs_sync.c, line: 727 To: xfs-oss X-Authenticated: #581924 X-Flags: 0001 X-Mailer: WWW-Mail 6100 (Global Message Exchange) X-Priority: 3 X-Provags-ID: V01U2FsdGVkX1/v6S4E2wHvsfWPkrSJ5xyyPzhljvP5q2dUvuM1Kp cd5RNaY+oJ6E8LjZZ+tLCCp8Uh292QCJKhMw== Content-Transfer-Encoding: 8bit X-GMX-UID: xS1OJjkIaHItI16zLiUlT7BiamdhZMSp X-FuHaFi: 0.52000000000000002 X-Barracuda-Connect: mail.gmx.net[213.165.64.20] X-Barracuda-Start-Time: 1277717675 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.52 X-Barracuda-Spam-Status: No, SCORE=-1.52 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_RULE7568M X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33791 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.50 BSF_RULE7568M Custom Rule 7568M X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean hi, Hello, i have lot's of trouble with a webserver which die with a kernel panic every week. Perhaps someone have an idea? Linux Kernel version: 2.6.33 Kernel log: --------------------------------------------------- Jun 27 04:53:19 web18 kernel: [415526.149123] Assertion failed: __xfs_iflags_test(ip, XFS_IRECLAIMABLE), file: fs/xfs/linux-2.6/xfs_sync.c, line: 727 Jun 27 04:53:19 web18 kernel: [415526.151594] ------------[ cut here ]------------ Jun 27 04:53:19 web18 kernel: [415526.152503] kernel BUG at fs/xfs/support/debug.c:109! Jun 27 04:53:19 web18 kernel: [415526.152503] invalid opcode: 0000 [#1] SMP Jun 27 04:53:19 web18 kernel: [415526.152503] last sysfs file: /sys/class/net/lo/operstate Jun 27 04:53:19 web18 kernel: [415526.152503] CPU 2 Jun 27 04:53:19 web18 kernel: [415526.152503] Pid: 1479, comm: xfssyncd Tainted: G W 2.6.33-cxo-15032010-v003 #1 0NJ023/PowerEdge 2850 Jun 27 04:53:19 web18 kernel: [415526.152503] RIP: 0010:[] [] assfail+0x1a/0x1e [xfs] Jun 27 04:53:19 web18 kernel: [415526.152503] RSP: 0018:ffff88033c27dda0 EFLAGS: 00010282 Jun 27 04:53:19 web18 kernel: [415526.152503] RAX: 000000000000007b RBX: ffff8801c87d5000 RCX: 0000000000000082 Jun 27 04:53:19 web18 kernel: [415526.152503] RDX: ffff880028280000 RSI: 0000000000000082 RDI: 0000000000000246 Jun 27 04:53:19 web18 kernel: [415526.152503] RBP: ffff88033bd74400 R08: 000000000000c887 R09: 0000000000000004 Jun 27 04:53:19 web18 kernel: [415526.152503] R10: ffffffff81324d10 R11: ffff88033cf1fc80 R12: 0000000000000002 Jun 27 04:53:19 web18 kernel: [415526.152503] R13: 0000000000000000 R14: 0000000000000001 R15: ffff88033c254c00 Jun 27 04:53:19 web18 kernel: [415526.152503] FS: 0000000000000000(0000) GS:ffff880028280000(0000) knlGS:0000000000000000 Jun 27 04:53:19 web18 kernel: [415526.152503] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Jun 27 04:53:19 web18 kernel: [415526.152503] CR2: 00007f140bb085f0 CR3: 0000000049f70000 CR4: 00000000000006e0 Jun 27 04:53:19 web18 kernel: [415526.152503] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jun 27 04:53:19 web18 kernel: [415526.152503] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Jun 27 04:53:19 web18 kernel: [415526.152503] Process xfssyncd (pid: 1479, threadinfo ffff88033c27c000, task ffff88033e6489c0) Jun 27 04:53:19 web18 kernel: [415526.152503] Stack: Jun 27 04:53:19 web18 kernel: [415526.152503] ffff88033c254c00 ffffffffa018d402 ffff88033bd74448 ffff88033bd74400 Jun 27 04:53:19 web18 kernel: [415526.152503] <0> 0000000000000000 ffffffffa018de09 ffff88033e4d8000 0000000200000000 Jun 27 04:53:19 web18 kernel: [415526.152503] <0> ffffffffa018d3c8 ffffffff812f145e 0170446300000000 0000000000000000 Jun 27 04:53:19 web18 kernel: [415526.152503] Call Trace: Jun 27 04:53:19 web18 kernel: [415526.152503] [] ? xfs_reclaim_inode+0x3a/0xde [xfs] Jun 27 04:53:19 web18 kernel: [415526.152503] [] ? xfs_inode_ag_walk+0x97/0xd6 [xfs] Jun 27 04:53:19 web18 kernel: [415526.152503] [] ? xfs_reclaim_inode+0x0/0xde [xfs] Jun 27 04:53:19 web18 kernel: [415526.152503] [] ? schedule_timeout+0x1fa/0x21a Jun 27 04:53:19 web18 kernel: [415526.152503] [] ? xfs_inode_ag_iterator+0x50/0x7a [xfs] Jun 27 04:53:19 web18 kernel: [415526.152503] [] ? xfs_reclaim_inode+0x0/0xde [xfs] Jun 27 04:53:19 web18 kernel: [415526.152503] [] ? xfs_sync_worker+0x26/0x5f [xfs] Jun 27 04:53:19 web18 kernel: [415526.152503] [] ? xfssyncd+0x14f/0x1ba [xfs] Jun 27 04:53:19 web18 kernel: [415526.152503] [] ? xfssyncd+0x0/0x1ba [xfs] Jun 27 04:53:19 web18 kernel: [415526.152503] [] ? kthread+0x79/0x81 Jun 27 04:53:19 web18 kernel: [415526.152503] [] ? kernel_thread_helper+0x4/0x10 Jun 27 04:53:19 web18 kernel: [415526.152503] [] ? kthread+0x0/0x81 Jun 27 04:53:19 web18 kernel: [415526.152503] [] ? kernel_thread_helper+0x0/0x10 Jun 27 04:53:19 web18 kernel: [415526.152503] Code: 44 24 08 01 00 00 00 e8 1d b3 fe e0 48 83 c4 18 c3 89 d1 48 83 ec 08 48 89 f2 31 c0 48 89 fe 48 c7 c7 97 c7 19 a0 e8 99 1f 16 e1 <0f> 0b eb fe 41 56 41 55 49 89 d5 41 54 49 89 cc 55 89 fd 48 c7 Jun 27 04:53:19 web18 kernel: [415526.152503] RIP [] assfail+0x1a/0x1e [xfs] Jun 27 04:53:19 web18 kernel: [415526.152503] RSP Jun 27 04:53:19 web18 kernel: [415526.211649] ---[ end trace 323be1c96277b67a ]--- --------------------------------------------------- greets Steffen -- GMX DSL: Internet-, Telefon- und Handy-Flat ab 19,99 EUR/mtl. Bis zu 150 EUR Startguthaben inklusive! http://portal.gmx.net/de/go/dsl From BATV+bf5ac97a206ecea5bbb9+2500+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 28 04:47:45 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5S9liY4020596 for ; Mon, 28 Jun 2010 04:47:44 -0500 X-ASG-Debug-ID: 1277718912-347c00520000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 9A0D5114B476 for ; Mon, 28 Jun 2010 02:55:12 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id JAuCcDW6ARX8UCIJ for ; Mon, 28 Jun 2010 02:55:12 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OTAyz-00043n-2Q; Mon, 28 Jun 2010 09:50:29 +0000 Date: Mon, 28 Jun 2010 05:50:29 -0400 From: Christoph Hellwig To: Steffen Knauf Cc: xfs-oss X-ASG-Orig-Subj: Re: Kernel Panic: Assertion failed: __xfs_iflags_test(ip, XFS_IRECLAIMABLE), file: fs/xfs/linux-2.6/xfs_sync.c, line: 727 Subject: Re: Kernel Panic: Assertion failed: __xfs_iflags_test(ip, XFS_IRECLAIMABLE), file: fs/xfs/linux-2.6/xfs_sync.c, line: 727 Message-ID: <20100628095028.GA13389@infradead.org> References: <20100628092948.323370@gmx.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100628092948.323370@gmx.net> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277718912 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, Jun 28, 2010 at 11:29:48AM +0200, Steffen Knauf wrote: > hi, > > Hello, > > i have lot's of trouble with a webserver which die with a kernel panic every week. Perhaps someone have an idea? > > Linux Kernel version: 2.6.33 It's a know issue that has been fixed in -stable since. Please upgrade either to the latests 2.6.33-stable release or even better to 2.6.34-stable. From Steffen.Knauf@gmx.net Mon Jun 28 04:54:34 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5S9sYY0020806 for ; Mon, 28 Jun 2010 04:54:34 -0500 X-ASG-Debug-ID: 1277719038-702b007b0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.gmx.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with SMTP id 9D5931E16B1E for ; Mon, 28 Jun 2010 02:57:18 -0700 (PDT) Received: from mail.gmx.net (mail.gmx.net [213.165.64.20]) by cuda.sgi.com with SMTP id n5T8JX2dORYsAhsW for ; Mon, 28 Jun 2010 02:57:18 -0700 (PDT) Received: (qmail 4569 invoked by uid 0); 28 Jun 2010 09:57:17 -0000 Received: from 195.122.130.2 by www100.gmx.net with HTTP; Mon, 28 Jun 2010 11:57:16 +0200 (CEST) Cc: xfs@oss.sgi.com Content-Type: text/plain; charset="utf-8" Date: Mon, 28 Jun 2010 11:57:16 +0200 From: "Steffen Knauf" In-Reply-To: <20100628095028.GA13389@infradead.org> Message-ID: <20100628095716.323400@gmx.net> MIME-Version: 1.0 References: <20100628092948.323370@gmx.net> <20100628095028.GA13389@infradead.org> X-ASG-Orig-Subj: Re: Kernel Panic: Assertion failed: __xfs_iflags_test(ip, XFS_IRECLAIMABLE), file: fs/xfs/linux-2.6/xfs_sync.c, line: 727 Subject: Re: Kernel Panic: Assertion failed: __xfs_iflags_test(ip, XFS_IRECLAIMABLE), file: fs/xfs/linux-2.6/xfs_sync.c, line: 727 To: Christoph Hellwig X-Authenticated: #581924 X-Flags: 0001 X-Mailer: WWW-Mail 6100 (Global Message Exchange) X-Priority: 3 X-Provags-ID: V01U2FsdGVkX19d87lNC89d2/e/nQjob62hyCzknA23jT9lre5fI3 MMdqlWStJv6E+jSB3CQJod90mQs+kAgJ0MyA== Content-Transfer-Encoding: 8bit X-GMX-UID: rgVNPDwfZCEEIEqbbWwhQrp4IGhpZQZP X-FuHaFi: 0.53000000000000003 X-Barracuda-Connect: mail.gmx.net[213.165.64.20] X-Barracuda-Start-Time: 1277719039 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33794 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean hi, Thanks a lot, i'll upgrade to 2.6.34. greets Steffen -------- Original-Nachricht -------- > Datum: Mon, 28 Jun 2010 05:50:29 -0400 > Von: Christoph Hellwig > An: Steffen Knauf > CC: xfs-oss > Betreff: Re: Kernel Panic: Assertion failed: __xfs_iflags_test(ip, XFS_IRECLAIMABLE), file: fs/xfs/linux-2.6/xfs_sync.c, line: 727 > On Mon, Jun 28, 2010 at 11:29:48AM +0200, Steffen Knauf wrote: > > hi, > > > > Hello, > > > > i have lot's of trouble with a webserver which die with a kernel panic > every week. Perhaps someone have an idea? > > > > Linux Kernel version: 2.6.33 > > It's a know issue that has been fixed in -stable since. Please upgrade > either to the latests 2.6.33-stable release or even better to > 2.6.34-stable. -- GMX DSL: Internet-, Telefon- und Handy-Flat ab 19,99 EUR/mtl. Bis zu 150 EUR Startguthaben inklusive! http://portal.gmx.net/de/go/dsl From BATV+bf5ac97a206ecea5bbb9+2500+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 28 09:31:49 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5SEVnXu029700 for ; Mon, 28 Jun 2010 09:31:49 -0500 X-ASG-Debug-ID: 1277735674-4edc029c0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id B3F051558AF4 for ; Mon, 28 Jun 2010 07:34:34 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id Y5gNXvQO8VrJxuYc for ; Mon, 28 Jun 2010 07:34:34 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OTFPu-0001SJ-Ah for xfs@oss.sgi.com; Mon, 28 Jun 2010 14:34:34 +0000 Date: Mon, 28 Jun 2010 10:34:34 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH] xfs: remove incorrect log write optimization Subject: [PATCH] xfs: remove incorrect log write optimization Message-ID: <20100628143434.GA5473@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277735674 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean We do need a barrier for the first buffer of a split log write. Otherwise we might incorrectly stamp the tail LSN into transactions in the first block, or not flush data I/O before updating the inode size. Signed-off-by: Christoph Hellwig Index: xfs-dev/fs/xfs/xfs_log.c =================================================================== --- xfs-dev.orig/fs/xfs/xfs_log.c 2010-06-28 11:51:30.423004228 +0200 +++ xfs-dev/fs/xfs/xfs_log.c 2010-06-28 11:52:52.559255519 +0200 @@ -1423,11 +1423,8 @@ xlog_sync(xlog_t *log, XFS_BUF_BUSY(bp); XFS_BUF_ASYNC(bp); bp->b_flags |= XBF_LOG_BUFFER; - /* - * Do an ordered write for the log block. - * Its unnecessary to flush the first split block in the log wrap case. - */ - if (!split && (log->l_mp->m_flags & XFS_MOUNT_BARRIER)) + + if (log->l_mp->m_flags & XFS_MOUNT_BARRIER) XFS_BUF_ORDERED(bp); ASSERT(XFS_BUF_ADDR(bp) <= log->l_logBBsize-1); From BATV+bf5ac97a206ecea5bbb9+2500+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 28 09:31:59 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5SEVxTn029715 for ; Mon, 28 Jun 2010 09:31:59 -0500 X-ASG-Debug-ID: 1277735684-445501490000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 0B5F640D5F1 for ; Mon, 28 Jun 2010 07:34:44 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id FuMvHHxYCbw1DdWg for ; Mon, 28 Jun 2010 07:34:44 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OTFQ4-0001U7-Mw for xfs@oss.sgi.com; Mon, 28 Jun 2010 14:34:44 +0000 Date: Mon, 28 Jun 2010 10:34:44 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH] xfs: allow writeback from kswapd Subject: [PATCH] xfs: allow writeback from kswapd Message-ID: <20100628143444.GB5473@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277735685 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean We only need disable I/O from direct or memcg reclaim. Signed-off-by: Christoph Hellwig Index: xfs-dev/fs/xfs/linux-2.6/xfs_aops.c =================================================================== --- xfs-dev.orig/fs/xfs/linux-2.6/xfs_aops.c 2010-06-28 11:57:06.652261386 +0200 +++ xfs-dev/fs/xfs/linux-2.6/xfs_aops.c 2010-06-28 11:59:17.846068204 +0200 @@ -1049,16 +1049,15 @@ xfs_vm_writepage( /* * Refuse to write the page out if we are called from reclaim context. * - * This is primarily to avoid stack overflows when called from deep - * used stacks in random callers for direct reclaim, but disabling - * reclaim for kswap is a nice side-effect as kswapd causes rather - * suboptimal I/O patters, too. + * This avoids stack overflows when called from deeply used stacks in + * random callers for direct reclaim or memcg reclaim. We explicitly + * allow reclaim from kswapd as the stack usage there is relatively low. * * This should really be done by the core VM, but until that happens * filesystems like XFS, btrfs and ext4 have to take care of this * by themselves. */ - if (current->flags & PF_MEMALLOC) + if ((current->flags & (PF_MEMALLOC|PF_KSWAPD)) == PF_MEMALLOC) goto out_fail; /* From BATV+bf5ac97a206ecea5bbb9+2500+infradead.org+hch@bombadil.srs.infradead.org Mon Jun 28 09:32:12 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5SEWC5D029738 for ; Mon, 28 Jun 2010 09:32:12 -0500 X-ASG-Debug-ID: 1277735698-4eda02700000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 3D9BB1558B06 for ; Mon, 28 Jun 2010 07:34:58 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id ClSFYhsxWPDZpkTR for ; Mon, 28 Jun 2010 07:34:58 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OTFQH-0001Wh-Vi for xfs@oss.sgi.com; Mon, 28 Jun 2010 14:34:57 +0000 Date: Mon, 28 Jun 2010 10:34:57 -0400 From: Christoph Hellwig To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH] xfs: writepage always has buffers Subject: [PATCH] xfs: writepage always has buffers Message-ID: <20100628143457.GC5473@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277735698 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean These days we always have buffers thanks to ->page_mkwrite. And we already have an assert a few lines above tripping in case that was not true due to a bug. Signed-off-by: Christoph Hellwig Index: xfs-dev/fs/xfs/linux-2.6/xfs_aops.c =================================================================== --- xfs-dev.orig/fs/xfs/linux-2.6/xfs_aops.c 2010-06-28 11:59:29.590253914 +0200 +++ xfs-dev/fs/xfs/linux-2.6/xfs_aops.c 2010-06-28 11:59:48.341006462 +0200 @@ -1072,13 +1072,6 @@ xfs_vm_writepage( if ((current->flags & PF_FSTRANS) && (delalloc || unwritten)) goto out_fail; - /* - * Delay hooking up buffer heads until we have - * made our go/no-go decision. - */ - if (!page_has_buffers(page)) - create_empty_buffers(page, 1 << inode->i_blkbits, 0); - /* Is this page beyond the end of the file? */ offset = i_size_read(inode); end_index = offset >> PAGE_CACHE_SHIFT; From aelder@sgi.com Mon Jun 28 17:01:47 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=unavailable version=3.4.0-r929098 Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5SM1kNb044141 for ; Mon, 28 Jun 2010 17:01:47 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay1.corp.sgi.com (Postfix) with ESMTP id DB9D88F80D3; Mon, 28 Jun 2010 15:04:32 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o5SM4WOI018107; Mon, 28 Jun 2010 17:04:32 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o5SM4W1o018105; Mon, 28 Jun 2010 17:04:32 -0500 From: Alex Elder Message-Id: <201006282204.o5SM4W1o018105@stout.americas.sgi.com> Date: Mon, 28 Jun 2010 17:04:32 -0500 To: xfs@oss.sgi.com Subject: [PATCH 01/15] xfs: kill off "xfs_dmapi_priv.h" User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean The file "fs/xfs/linux-2.6/xfs_dmapi_priv.h" only two definitions, and those are used only once each in non-DMAPI XFS code. Get rid of those definitions--as well as the file--and use their expansions in the place they're used instead. Signed-off-by: Alex Elder --- fs/xfs/linux-2.6/xfs_dmapi_priv.h | 28 ---------------------------- fs/xfs/linux-2.6/xfs_file.c | 6 ++++-- fs/xfs/xfs_dmapi.h | 7 +------ fs/xfs/xfs_vnodeops.c | 6 ++++-- 4 files changed, 9 insertions(+), 38 deletions(-) Index: b/fs/xfs/linux-2.6/xfs_dmapi_priv.h =================================================================== --- a/fs/xfs/linux-2.6/xfs_dmapi_priv.h +++ /dev/null @@ -1,28 +0,0 @@ -/* - * Copyright (c) 2000-2006 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 - */ -#ifndef __XFS_DMAPI_PRIV_H__ -#define __XFS_DMAPI_PRIV_H__ - -/* - * Based on IO_ISDIRECT, decide which i_ flag is set. - */ -#define DM_SEM_FLAG_RD(ioflags) (((ioflags) & IO_ISDIRECT) ? \ - DM_FLAGS_IMUX : 0) -#define DM_SEM_FLAG_WR (DM_FLAGS_IALLOCSEM_WR | DM_FLAGS_IMUX) - -#endif /*__XFS_DMAPI_PRIV_H__*/ Index: b/fs/xfs/linux-2.6/xfs_file.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_file.c +++ b/fs/xfs/linux-2.6/xfs_file.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2005, SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -276,9 +276,11 @@ xfs_file_aio_read( xfs_ilock(ip, XFS_IOLOCK_SHARED); if (DM_EVENT_ENABLED(ip, DM_EVENT_READ) && !(ioflags & IO_INVIS)) { - int dmflags = FILP_DELAY_FLAG(file) | DM_SEM_FLAG_RD(ioflags); int iolock = XFS_IOLOCK_SHARED; + int dmflags = FILP_DELAY_FLAG(file); + if (ioflags & IO_ISDIRECT) + dmflags |= DM_FLAGS_IMUX; ret = -XFS_SEND_DATA(mp, DM_EVENT_READ, ip, iocb->ki_pos, size, dmflags, &iolock); if (ret) { Index: b/fs/xfs/xfs_dmapi.h =================================================================== --- a/fs/xfs/xfs_dmapi.h +++ b/fs/xfs/xfs_dmapi.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -154,11 +154,6 @@ typedef enum { #define DM_FLAGS_IALLOCSEM_WR 0x020 /* thread holds i_alloc_sem wr */ /* - * Pull in platform specific event flags defines - */ -#include "xfs_dmapi_priv.h" - -/* * Macros to turn caller specified delay/block flags into * dm_send_xxxx_event flag DM_FLAGS_NDELAY. */ Index: b/fs/xfs/xfs_vnodeops.c =================================================================== --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2006 Silicon Graphics, Inc. + * Copyright (c) 2000-2006, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -145,7 +145,9 @@ xfs_setattr( } else { if (DM_EVENT_ENABLED(ip, DM_EVENT_TRUNCATE) && !(flags & XFS_ATTR_DMI)) { - int dmflags = AT_DELAY_FLAG(flags) | DM_SEM_FLAG_WR; + int dmflags = AT_DELAY_FLAG(flags); + + dmflags |= DM_FLAGS_IALLOCSEM_WR|DM_FLAGS_IMUX; code = XFS_SEND_DATA(mp, DM_EVENT_TRUNCATE, ip, iattr->ia_size, 0, dmflags, NULL); if (code) { From aelder@sgi.com Mon Jun 28 17:01:31 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5SM1Ujo044121 for ; Mon, 28 Jun 2010 17:01:31 -0500 Received: from cf--amer001e--3.americas.sgi.com (cf--amer001e--3.americas.sgi.com [137.38.100.5]) by relay1.corp.sgi.com (Postfix) with ESMTP id C75328F80D3 for ; Mon, 28 Jun 2010 15:04:13 -0700 (PDT) Received: from [128.162.232.148] ([128.162.232.148]) by cf--amer001e--3.americas.sgi.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 28 Jun 2010 17:04:13 -0500 Subject: [PATCH 00/15] xfs: minimize DMAPI footprint From: Alex Elder Reply-To: aelder@sgi.com To: xfs@oss.sgi.com Content-Type: text/plain; charset="UTF-8" Date: Mon, 28 Jun 2010 17:04:13 -0500 Message-ID: <1277762653.2040.554.camel@doink> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 28 Jun 2010 22:04:13.0620 (UTC) FILETIME=[D801C740:01CB170D] X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Back in the early part of May, Christoph Hellwig sent a patch to the list proposing to drop the remaining DMAPI support code from XFS. He said: Dmapi support was never merged upstream, but we still have a lot of hooks bloating XFS for it, all over the fast pathes of the filesystem. This patch drops over 700 lines of dmapi overhead. If we'll ever get HSM support in mainline at least the namespace events can be done much saner in the VFS instead of the individual filesystem, so it's not like this is much help for future work. SGI has a product that uses the DMAPI support code that's included in mainline XFS, along with some additional code (the "never merged" stuff Christoph refers to) that we maintain separately. To our customers that need it, this is an extremely important feature. I was concerned that the outright removal of the code would make it very difficult for us to continue to offer our DMAPI support, especially given the rate at which code has been getting refactored in XFS lately. Specifically, DMAPI relies on the file system to send it messages when certain events occur, and I don't want to lose track of the specific spots in the XFS code where this needs to occur. I agree with Christoph that the DMAPI-specific definitions, etc., have no place in the top-of-tree code right now. However I wanted to provide an alternative to Christoph's patch, one which preserves some very specific hooks that allow DMAPI support to remain, but which otherwise minimizes the footprint and visibility of DMAPI definitions in environments where it is not used (and which furthermore incurs little or no run-time overhead in non-DMAPI builds). What follows is a set of patches that I think accomplishes these goals. The net result of these changes is: - DMAPI calls, along with almost all supporting logic, have been replaced with a set of 21 function calls that are used to signal events. The information supplied to these functions is exactly what is required--no more--and their syntactic interfaces do not rely on any internal DMAPI definitions. - Two files remain in top-of-tree code to support DMAPI: "xfs_dmops.c" and "xfs_dmapi.h". The former still defines the two functions called at mount and unmount time to attach/detach a vector of DMAPI operations to the mount point. I've simplified this though, so a null pointer is used if DMAPI is not present. The header file now only declares the two functions, and defines a set of no-op macros to be used for DMAPI event generation when DMAPI is not configured in the build. Everything else will now be defined elsewhere. The "dmapi" mount option remains, but the rest of the details have been moved into separate patches that we can continue to maintain out-of-tree, and I've been able to verify that with those patches applied, the result still implements the DMAPI support we need. I would like to get some feedback on these changes, and hopefully get agreement that the result is an acceptable compromise that *nearly* eliminates the DMAPI code from top-of-tree XFS. I think there are a few more small things that are DMAPI-specific that may need to be pulled out, but what I have here gives a pretty good idea of what I've set out to do. -Alex From aelder@sgi.com Mon Jun 28 17:02:20 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_22 autolearn=no version=3.4.0-r929098 Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5SM2JQs044192 for ; Mon, 28 Jun 2010 17:02:20 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay2.corp.sgi.com (Postfix) with ESMTP id E94FF304048; Mon, 28 Jun 2010 15:05:02 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o5SM523d018144; Mon, 28 Jun 2010 17:05:02 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o5SM52Qc018142; Mon, 28 Jun 2010 17:05:02 -0500 From: Alex Elder Message-Id: <201006282205.o5SM52Qc018142@stout.americas.sgi.com> Date: Mon, 28 Jun 2010 17:05:02 -0500 To: xfs@oss.sgi.com Subject: [PATCH 04/15] xfs: rewrite DM_EVENT_ENABLED() as a function User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Re-implement DM_EVENT_ENABLED() using a real (static inline) function. Also, get rid of a redundant test of the DMAPI mount flag in xfs_file_open_exec(). Signed-off-by: Alex Elder --- fs/xfs/linux-2.6/xfs_file.c | 16 ++++++++++------ fs/xfs/linux-2.6/xfs_ioctl.c | 2 +- fs/xfs/xfs_bmap.c | 2 +- fs/xfs/xfs_dmapi.h | 30 +++++++++++++++++++----------- fs/xfs/xfs_rename.c | 8 ++++---- fs/xfs/xfs_vnodeops.c | 29 +++++++++++++++-------------- 6 files changed, 50 insertions(+), 37 deletions(-) Index: b/fs/xfs/linux-2.6/xfs_file.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_file.c +++ b/fs/xfs/linux-2.6/xfs_file.c @@ -275,7 +275,8 @@ xfs_file_aio_read( mutex_lock(&inode->i_mutex); xfs_ilock(ip, XFS_IOLOCK_SHARED); - if (DM_EVENT_ENABLED(ip, DM_EVENT_READ) && !(ioflags & IO_INVIS)) { + if (xfs_dmapi_event_enabled(ip, DM_EVENT_READ) && + !(ioflags & IO_INVIS)) { int iolock = XFS_IOLOCK_SHARED; int dmflags = FILP_DELAY_FLAG(file); @@ -337,7 +338,8 @@ xfs_file_splice_read( xfs_ilock(ip, XFS_IOLOCK_SHARED); - if (DM_EVENT_ENABLED(ip, DM_EVENT_READ) && !(ioflags & IO_INVIS)) { + if (xfs_dmapi_event_enabled(ip, DM_EVENT_READ) + && !(ioflags & IO_INVIS)) { int iolock = XFS_IOLOCK_SHARED; int error; @@ -384,7 +386,8 @@ xfs_file_splice_write( xfs_ilock(ip, XFS_IOLOCK_EXCL); - if (DM_EVENT_ENABLED(ip, DM_EVENT_WRITE) && !(ioflags & IO_INVIS)) { + if (xfs_dmapi_event_enabled(ip, DM_EVENT_WRITE) + && !(ioflags & IO_INVIS)) { int iolock = XFS_IOLOCK_EXCL; int error; @@ -675,8 +678,8 @@ start: goto out_unlock_mutex; } - if ((DM_EVENT_ENABLED(ip, DM_EVENT_WRITE) && - !(ioflags & IO_INVIS) && !eventsent)) { + if (xfs_dmapi_event_enabled(ip, DM_EVENT_WRITE) && + !(ioflags & IO_INVIS) && !eventsent) { int dmflags = FILP_DELAY_FLAG(file); if (need_i_mutex) @@ -833,7 +836,8 @@ write_retry: } if (ret == -ENOSPC && - DM_EVENT_ENABLED(ip, DM_EVENT_NOSPACE) && !(ioflags & IO_INVIS)) { + xfs_dmapi_event_enabled(ip, DM_EVENT_NOSPACE) && + !(ioflags & IO_INVIS)) { xfs_iunlock(ip, iolock); if (need_i_mutex) mutex_unlock(&inode->i_mutex); Index: b/fs/xfs/linux-2.6/xfs_ioctl.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_ioctl.c +++ b/fs/xfs/linux-2.6/xfs_ioctl.c @@ -1120,7 +1120,7 @@ xfs_ioctl_setattr( if (code) return code; - if (DM_EVENT_ENABLED(ip, DM_EVENT_ATTRIBUTE)) { + if (xfs_dmapi_event_enabled(ip, DM_EVENT_ATTRIBUTE)) { XFS_SEND_NAMESP(mp, DM_EVENT_ATTRIBUTE, ip, DM_RIGHT_NULL, NULL, DM_RIGHT_NULL, NULL, NULL, 0, 0, (mask & FSX_NONBLOCK) ? DM_FLAGS_NDELAY : 0); Index: b/fs/xfs/xfs_bmap.c =================================================================== --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -5619,7 +5619,7 @@ xfs_getbmap( * could misinterpret holes in a DMAPI file as true holes, * when in fact they may represent offline user data. */ - if (DM_EVENT_ENABLED(ip, DM_EVENT_READ) && + if (xfs_dmapi_event_enabled(ip, DM_EVENT_READ) && !(iflags & BMV_IF_NO_DMAPI_READ)) { error = XFS_SEND_DATA(mp, DM_EVENT_READ, ip, 0, 0, 0, NULL); Index: b/fs/xfs/xfs_dmapi.h =================================================================== --- a/fs/xfs/xfs_dmapi.h +++ b/fs/xfs/xfs_dmapi.h @@ -70,17 +70,6 @@ typedef enum { } dm_right_t; #define HAVE_DM_RIGHT_T -/* Defines for determining if an event message should be sent. */ -#ifdef XFS_DMAPI -#define DM_EVENT_ENABLED(ip, event) ( \ - unlikely ((ip)->i_mount->m_flags & XFS_MOUNT_DMAPI) && \ - ( ((ip)->i_d.di_dmevmask & (1 << event)) || \ - ((ip)->i_mount->m_dmevmask & (1 << event)) ) \ - ) -#else /* ! XFS_DMAPI */ -#define DM_EVENT_ENABLED(ip, event) (0) -#endif /* ! XFS_DMAPI */ - #define DM_XFS_VALID_FS_EVENTS ( \ (1 << DM_EVENT_PREUNMOUNT) | \ (1 << DM_EVENT_UNMOUNT) | \ @@ -201,6 +190,25 @@ typedef struct xfs_dmops { #define XFS_DMAPI_UNMOUNT_FLAGS(mp) \ (((mp)->m_dmevmask & (1 << DM_EVENT_UNMOUNT)) ? 0 : DM_FLAGS_UNWANTED) +/* + * DMAPI events only apply if DMAPI support was specified at mount + * time. If active, a particular DMAPI event can be enabled for + * all files the file system, or for individual files. + */ +static inline int +xfs_dmapi_event_enabled(struct xfs_inode *ip, dm_eventtype_t event) +{ +#ifdef XFS_DMAPI + unsigned int event_mask = 1 << event; + + return ip->i_mount->m_flags & XFS_MOUNT_DMAPI && + (ip->i_mount->m_dmevmask & event_mask || + ip->i_d.di_dmevmask & event_mask); +#else /* ! XFS_DMAPI */ + return 0; +#endif /* ! XFS_DMAPI */ +} + #define XFS_SEND_DATA(mp, ev,ip,off,len,fl,lock) \ (*(mp)->m_dm_ops->xfs_send_data)(ev,ip,off,len,fl,lock) #define XFS_SEND_MMAP(mp, vma,fl) \ Index: b/fs/xfs/xfs_rename.c =================================================================== --- a/fs/xfs/xfs_rename.c +++ b/fs/xfs/xfs_rename.c @@ -119,8 +119,8 @@ xfs_rename( xfs_itrace_entry(src_dp); xfs_itrace_entry(target_dp); - if (DM_EVENT_ENABLED(src_dp, DM_EVENT_RENAME) || - DM_EVENT_ENABLED(target_dp, DM_EVENT_RENAME)) { + if (xfs_dmapi_event_enabled(src_dp, DM_EVENT_RENAME) || + xfs_dmapi_event_enabled(target_dp, DM_EVENT_RENAME)) { error = XFS_SEND_NAMESP(mp, DM_EVENT_RENAME, src_dp, DM_RIGHT_NULL, target_dp, DM_RIGHT_NULL, @@ -374,8 +374,8 @@ xfs_rename( /* Fall through to std_return with error = 0 or errno from * xfs_trans_commit */ std_return: - if (DM_EVENT_ENABLED(src_dp, DM_EVENT_POSTRENAME) || - DM_EVENT_ENABLED(target_dp, DM_EVENT_POSTRENAME)) { + if (xfs_dmapi_event_enabled(src_dp, DM_EVENT_POSTRENAME) || + xfs_dmapi_event_enabled(target_dp, DM_EVENT_POSTRENAME)) { (void) XFS_SEND_NAMESP (mp, DM_EVENT_POSTRENAME, src_dp, DM_RIGHT_NULL, target_dp, DM_RIGHT_NULL, Index: b/fs/xfs/xfs_vnodeops.c =================================================================== --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -143,7 +143,7 @@ xfs_setattr( goto error_return; } } else { - if (DM_EVENT_ENABLED(ip, DM_EVENT_TRUNCATE) && + if (xfs_dmapi_event_enabled(ip, DM_EVENT_TRUNCATE) && !(flags & XFS_ATTR_DMI)) { int dmflags = AT_DELAY_FLAG(flags); @@ -472,7 +472,7 @@ xfs_setattr( return XFS_ERROR(code); } - if (DM_EVENT_ENABLED(ip, DM_EVENT_ATTRIBUTE) && + if (xfs_dmapi_event_enabled(ip, DM_EVENT_ATTRIBUTE) && !(flags & XFS_ATTR_DMI)) { (void) XFS_SEND_NAMESP(mp, DM_EVENT_ATTRIBUTE, ip, DM_RIGHT_NULL, NULL, DM_RIGHT_NULL, NULL, NULL, @@ -1062,7 +1062,8 @@ xfs_inactive( mp = ip->i_mount; - if (ip->i_d.di_nlink == 0 && DM_EVENT_ENABLED(ip, DM_EVENT_DESTROY)) + if (ip->i_d.di_nlink == 0 && + xfs_dmapi_event_enabled(ip, DM_EVENT_DESTROY)) XFS_SEND_DESTROY(mp, ip, DM_RIGHT_NULL); error = 0; @@ -1316,7 +1317,7 @@ xfs_create( if (XFS_FORCED_SHUTDOWN(mp)) return XFS_ERROR(EIO); - if (DM_EVENT_ENABLED(dp, DM_EVENT_CREATE)) { + if (xfs_dmapi_event_enabled(dp, DM_EVENT_CREATE)) { error = XFS_SEND_NAMESP(mp, DM_EVENT_CREATE, dp, DM_RIGHT_NULL, NULL, DM_RIGHT_NULL, name->name, NULL, @@ -1492,7 +1493,7 @@ xfs_create( /* Fallthrough to std_return with error = 0 */ std_return: - if (DM_EVENT_ENABLED(dp, DM_EVENT_POSTCREATE)) { + if (xfs_dmapi_event_enabled(dp, DM_EVENT_POSTCREATE)) { XFS_SEND_NAMESP(mp, DM_EVENT_POSTCREATE, dp, DM_RIGHT_NULL, ip, DM_RIGHT_NULL, name->name, NULL, mode, error, 0); @@ -1734,7 +1735,7 @@ xfs_remove( if (XFS_FORCED_SHUTDOWN(mp)) return XFS_ERROR(EIO); - if (DM_EVENT_ENABLED(dp, DM_EVENT_REMOVE)) { + if (xfs_dmapi_event_enabled(dp, DM_EVENT_REMOVE)) { error = XFS_SEND_NAMESP(mp, DM_EVENT_REMOVE, dp, DM_RIGHT_NULL, NULL, DM_RIGHT_NULL, name->name, NULL, ip->i_d.di_mode, 0, 0); @@ -1880,7 +1881,7 @@ xfs_remove( xfs_filestream_deassociate(ip); std_return: - if (DM_EVENT_ENABLED(dp, DM_EVENT_POSTREMOVE)) { + if (xfs_dmapi_event_enabled(dp, DM_EVENT_POSTREMOVE)) { XFS_SEND_NAMESP(mp, DM_EVENT_POSTREMOVE, dp, DM_RIGHT_NULL, NULL, DM_RIGHT_NULL, name->name, NULL, ip->i_d.di_mode, error, 0); @@ -1919,7 +1920,7 @@ xfs_link( if (XFS_FORCED_SHUTDOWN(mp)) return XFS_ERROR(EIO); - if (DM_EVENT_ENABLED(tdp, DM_EVENT_LINK)) { + if (xfs_dmapi_event_enabled(tdp, DM_EVENT_LINK)) { error = XFS_SEND_NAMESP(mp, DM_EVENT_LINK, tdp, DM_RIGHT_NULL, sip, DM_RIGHT_NULL, @@ -2022,7 +2023,7 @@ xfs_link( /* Fall through to std_return with error = 0. */ std_return: - if (DM_EVENT_ENABLED(sip, DM_EVENT_POSTLINK)) { + if (xfs_dmapi_event_enabled(sip, DM_EVENT_POSTLINK)) { (void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTLINK, tdp, DM_RIGHT_NULL, sip, DM_RIGHT_NULL, @@ -2088,7 +2089,7 @@ xfs_symlink( if (pathlen >= MAXPATHLEN) /* total string too long */ return XFS_ERROR(ENAMETOOLONG); - if (DM_EVENT_ENABLED(dp, DM_EVENT_SYMLINK)) { + if (xfs_dmapi_event_enabled(dp, DM_EVENT_SYMLINK)) { error = XFS_SEND_NAMESP(mp, DM_EVENT_SYMLINK, dp, DM_RIGHT_NULL, NULL, DM_RIGHT_NULL, link_name->name, @@ -2283,7 +2284,7 @@ xfs_symlink( /* Fall through to std_return with error = 0 or errno from * xfs_trans_commit */ std_return: - if (DM_EVENT_ENABLED(dp, DM_EVENT_POSTSYMLINK)) { + if (xfs_dmapi_event_enabled(dp, DM_EVENT_POSTSYMLINK)) { (void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTSYMLINK, dp, DM_RIGHT_NULL, error ? NULL : ip, @@ -2417,7 +2418,7 @@ xfs_alloc_file_space( /* Generate a DMAPI event if needed. */ if (alloc_type != 0 && offset < ip->i_size && (attr_flags & XFS_ATTR_DMI) == 0 && - DM_EVENT_ENABLED(ip, DM_EVENT_WRITE)) { + xfs_dmapi_event_enabled(ip, DM_EVENT_WRITE)) { xfs_off_t end_dmi_offset; end_dmi_offset = offset+len; @@ -2531,7 +2532,7 @@ retry: } dmapi_enospc_check: if (error == ENOSPC && (attr_flags & XFS_ATTR_DMI) == 0 && - DM_EVENT_ENABLED(ip, DM_EVENT_NOSPACE)) { + xfs_dmapi_event_enabled(ip, DM_EVENT_NOSPACE)) { error = XFS_SEND_NAMESP(mp, DM_EVENT_NOSPACE, ip, DM_RIGHT_NULL, ip, DM_RIGHT_NULL, @@ -2697,7 +2698,7 @@ xfs_free_file_space( endoffset_fsb = XFS_B_TO_FSBT(mp, end_dmi_offset); if (offset < ip->i_size && (attr_flags & XFS_ATTR_DMI) == 0 && - DM_EVENT_ENABLED(ip, DM_EVENT_WRITE)) { + xfs_dmapi_event_enabled(ip, DM_EVENT_WRITE)) { if (end_dmi_offset > ip->i_size) end_dmi_offset = ip->i_size; error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, ip, From aelder@sgi.com Mon Jun 28 17:02:08 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-4.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_22, LOCAL_GNU_PATCH autolearn=unavailable version=3.4.0-r929098 Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5SM277D044166 for ; Mon, 28 Jun 2010 17:02:08 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay3.corp.sgi.com (Postfix) with ESMTP id 26FCAAC024; Mon, 28 Jun 2010 15:04:53 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o5SM4qh3018134; Mon, 28 Jun 2010 17:04:52 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o5SM4qbU018132; Mon, 28 Jun 2010 17:04:52 -0500 From: Alex Elder Message-Id: <201006282204.o5SM4qbU018132@stout.americas.sgi.com> Date: Mon, 28 Jun 2010 17:04:52 -0500 To: xfs@oss.sgi.com Subject: [PATCH 03/15] xfs: move DMAPI definitions out of "xfs_mount.h" User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean XFS defines a bunch of DMAPI cruft in xfs_mount.h. There is no need for it to be there; move it instead into the xfs_dmapi.h file. A side-effect of this is that "xfs_dmapi.h" now depends on and needs to be #included after "xfs_mount.h" and "xfs_inode.h" (the latter of which itself depends on a "xfs_bmap_btree.h"). On the other hand, "xfs_dmapi.h" is #included by a LOT more files than it needs to be, so eliminate those cases. Finally, "xfs_inode.h" defines a type dm_attrs_t that is never referenced anywhere else, so kill it off. Signed-off-by: Alex Elder --- fs/xfs/linux-2.6/xfs_aops.c | 3 - fs/xfs/linux-2.6/xfs_buf.c | 3 - fs/xfs/linux-2.6/xfs_export.c | 3 - fs/xfs/linux-2.6/xfs_file.c | 2 - fs/xfs/linux-2.6/xfs_ioctl.c | 4 +- fs/xfs/linux-2.6/xfs_ioctl32.c | 3 - fs/xfs/linux-2.6/xfs_quotaops.c | 2 - fs/xfs/linux-2.6/xfs_super.c | 4 +- fs/xfs/linux-2.6/xfs_sync.c | 3 - fs/xfs/quota/xfs_dquot.c | 3 - fs/xfs/quota/xfs_dquot_item.c | 3 - fs/xfs/quota/xfs_qm.c | 3 - fs/xfs/quota/xfs_qm_bhv.c | 3 - fs/xfs/quota/xfs_qm_stats.c | 3 - fs/xfs/quota/xfs_qm_syscalls.c | 3 - fs/xfs/quota/xfs_trans_dquot.c | 3 - fs/xfs/support/debug.c | 3 - fs/xfs/xfs_alloc.c | 3 - fs/xfs/xfs_alloc_btree.c | 3 - fs/xfs/xfs_attr.c | 3 - fs/xfs/xfs_attr_leaf.c | 3 - fs/xfs/xfs_bmap.c | 4 +- fs/xfs/xfs_bmap_btree.c | 3 - fs/xfs/xfs_btree.c | 3 - fs/xfs/xfs_buf_item.c | 3 - fs/xfs/xfs_da_btree.c | 3 - fs/xfs/xfs_dfrag.c | 3 - fs/xfs/xfs_dir2.c | 3 - fs/xfs/xfs_dir2_block.c | 3 - fs/xfs/xfs_dir2_data.c | 3 - fs/xfs/xfs_dir2_leaf.c | 3 - fs/xfs/xfs_dir2_node.c | 3 - fs/xfs/xfs_dir2_sf.c | 3 - fs/xfs/xfs_dmapi.h | 61 ++++++++++++++++++++++++++++++++++++ fs/xfs/xfs_dmops.c | 6 ++- fs/xfs/xfs_error.c | 3 - fs/xfs/xfs_extfree_item.c | 3 - fs/xfs/xfs_filestream.c | 3 - fs/xfs/xfs_fsops.c | 3 - fs/xfs/xfs_ialloc.c | 3 - fs/xfs/xfs_ialloc_btree.c | 3 - fs/xfs/xfs_iget.c | 3 - fs/xfs/xfs_inode.c | 3 - fs/xfs/xfs_inode.h | 8 ---- fs/xfs/xfs_inode_item.c | 3 - fs/xfs/xfs_iomap.c | 3 - fs/xfs/xfs_itable.c | 3 - fs/xfs/xfs_log.c | 3 - fs/xfs/xfs_log_recover.c | 3 - fs/xfs/xfs_mount.c | 3 - fs/xfs/xfs_mount.h | 66 ---------------------------------------- fs/xfs/xfs_rename.c | 4 +- fs/xfs/xfs_rtalloc.c | 3 - fs/xfs/xfs_rw.c | 3 - fs/xfs/xfs_trans.c | 3 - fs/xfs/xfs_trans_ail.c | 3 - fs/xfs/xfs_trans_buf.c | 3 - fs/xfs/xfs_trans_extfree.c | 3 - fs/xfs/xfs_trans_inode.c | 3 - fs/xfs/xfs_trans_item.c | 3 - fs/xfs/xfs_utils.c | 3 - fs/xfs/xfs_vnodeops.c | 2 - 62 files changed, 129 insertions(+), 187 deletions(-) Index: b/fs/xfs/linux-2.6/xfs_aops.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_aops.c +++ b/fs/xfs/linux-2.6/xfs_aops.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -23,7 +23,6 @@ #include "xfs_ag.h" #include "xfs_dir2.h" #include "xfs_trans.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" Index: b/fs/xfs/linux-2.6/xfs_buf.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_buf.c +++ b/fs/xfs/linux-2.6/xfs_buf.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2006 Silicon Graphics, Inc. + * Copyright (c) 2000-2006, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -39,7 +39,6 @@ #include "xfs_inum.h" #include "xfs_log.h" #include "xfs_ag.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_trace.h" Index: b/fs/xfs/linux-2.6/xfs_export.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_export.c +++ b/fs/xfs/linux-2.6/xfs_export.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2004-2005 Silicon Graphics, Inc. + * Copyright (c) 2004-2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -23,7 +23,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_export.h" #include "xfs_vnodeops.h" Index: b/fs/xfs/linux-2.6/xfs_file.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_file.c +++ b/fs/xfs/linux-2.6/xfs_file.c @@ -24,7 +24,6 @@ #include "xfs_ag.h" #include "xfs_dir2.h" #include "xfs_trans.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" @@ -36,6 +35,7 @@ #include "xfs_dinode.h" #include "xfs_inode.h" #include "xfs_inode_item.h" +#include "xfs_dmapi.h" #include "xfs_bmap.h" #include "xfs_error.h" #include "xfs_rw.h" Index: b/fs/xfs/linux-2.6/xfs_ioctl.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_ioctl.c +++ b/fs/xfs/linux-2.6/xfs_ioctl.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_ag.h" #include "xfs_dir2.h" #include "xfs_alloc.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" @@ -34,6 +33,7 @@ #include "xfs_dir2_sf.h" #include "xfs_dinode.h" #include "xfs_inode.h" +#include "xfs_dmapi.h" #include "xfs_ioctl.h" #include "xfs_btree.h" #include "xfs_ialloc.h" Index: b/fs/xfs/linux-2.6/xfs_ioctl32.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2004-2005 Silicon Graphics, Inc. + * Copyright (c) 2004-2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -29,7 +29,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_attr_sf.h" Index: b/fs/xfs/linux-2.6/xfs_quotaops.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_quotaops.c +++ b/fs/xfs/linux-2.6/xfs_quotaops.c @@ -1,5 +1,6 @@ /* * Copyright (c) 2008, Christoph Hellwig + * Copyright (c) 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -16,7 +17,6 @@ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include "xfs.h" -#include "xfs_dmapi.h" #include "xfs_sb.h" #include "xfs_inum.h" #include "xfs_log.h" Index: b/fs/xfs/linux-2.6/xfs_super.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_super.c +++ b/fs/xfs/linux-2.6/xfs_super.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2006 Silicon Graphics, Inc. + * Copyright (c) 2000-2006, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_ag.h" #include "xfs_dir2.h" #include "xfs_alloc.h" -#include "xfs_dmapi.h" #include "xfs_quota.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" @@ -35,6 +34,7 @@ #include "xfs_attr_sf.h" #include "xfs_dinode.h" #include "xfs_inode.h" +#include "xfs_dmapi.h" #include "xfs_btree.h" #include "xfs_btree_trace.h" #include "xfs_ialloc.h" Index: b/fs/xfs/linux-2.6/xfs_sync.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_sync.c +++ b/fs/xfs/linux-2.6/xfs_sync.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" Index: b/fs/xfs/quota/xfs_dquot.c =================================================================== --- a/fs/xfs/quota/xfs_dquot.c +++ b/fs/xfs/quota/xfs_dquot.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2003 Silicon Graphics, Inc. + * Copyright (c) 2000-2003, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_ag.h" #include "xfs_dir2.h" #include "xfs_alloc.h" -#include "xfs_dmapi.h" #include "xfs_quota.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" Index: b/fs/xfs/quota/xfs_dquot_item.c =================================================================== --- a/fs/xfs/quota/xfs_dquot_item.c +++ b/fs/xfs/quota/xfs_dquot_item.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2003 Silicon Graphics, Inc. + * Copyright (c) 2000-2003, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_ag.h" #include "xfs_dir2.h" #include "xfs_alloc.h" -#include "xfs_dmapi.h" #include "xfs_quota.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" Index: b/fs/xfs/quota/xfs_qm.c =================================================================== --- a/fs/xfs/quota/xfs_qm.c +++ b/fs/xfs/quota/xfs_qm.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_ag.h" #include "xfs_dir2.h" #include "xfs_alloc.h" -#include "xfs_dmapi.h" #include "xfs_quota.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" Index: b/fs/xfs/quota/xfs_qm_bhv.c =================================================================== --- a/fs/xfs/quota/xfs_qm_bhv.c +++ b/fs/xfs/quota/xfs_qm_bhv.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2006 Silicon Graphics, Inc. + * Copyright (c) 2000-2006, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_ag.h" #include "xfs_dir2.h" #include "xfs_alloc.h" -#include "xfs_dmapi.h" #include "xfs_quota.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" Index: b/fs/xfs/quota/xfs_qm_stats.c =================================================================== --- a/fs/xfs/quota/xfs_qm_stats.c +++ b/fs/xfs/quota/xfs_qm_stats.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2003 Silicon Graphics, Inc. + * Copyright (c) 2000-2003, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_ag.h" #include "xfs_dir2.h" #include "xfs_alloc.h" -#include "xfs_dmapi.h" #include "xfs_quota.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" Index: b/fs/xfs/quota/xfs_qm_syscalls.c =================================================================== --- a/fs/xfs/quota/xfs_qm_syscalls.c +++ b/fs/xfs/quota/xfs_qm_syscalls.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -28,7 +28,6 @@ #include "xfs_ag.h" #include "xfs_dir2.h" #include "xfs_alloc.h" -#include "xfs_dmapi.h" #include "xfs_quota.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" Index: b/fs/xfs/quota/xfs_trans_dquot.c =================================================================== --- a/fs/xfs/quota/xfs_trans_dquot.c +++ b/fs/xfs/quota/xfs_trans_dquot.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2002 Silicon Graphics, Inc. + * Copyright (c) 2000-2002, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_ag.h" #include "xfs_dir2.h" #include "xfs_alloc.h" -#include "xfs_dmapi.h" #include "xfs_quota.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" Index: b/fs/xfs/support/debug.c =================================================================== --- a/fs/xfs/support/debug.c +++ b/fs/xfs/support/debug.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2003, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -22,7 +22,6 @@ #include "xfs_sb.h" #include "xfs_inum.h" #include "xfs_ag.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_error.h" Index: b/fs/xfs/xfs_alloc.c =================================================================== --- a/fs/xfs/xfs_alloc.c +++ b/fs/xfs/xfs_alloc.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2002, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" Index: b/fs/xfs/xfs_alloc_btree.c =================================================================== --- a/fs/xfs/xfs_alloc_btree.c +++ b/fs/xfs/xfs_alloc_btree.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2001, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" Index: b/fs/xfs/xfs_attr.c =================================================================== --- a/fs/xfs/xfs_attr.c +++ b/fs/xfs/xfs_attr.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -26,7 +26,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_da_btree.h" #include "xfs_bmap_btree.h" Index: b/fs/xfs/xfs_attr_leaf.c =================================================================== --- a/fs/xfs/xfs_attr_leaf.c +++ b/fs/xfs/xfs_attr_leaf.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_da_btree.h" #include "xfs_bmap_btree.h" Index: b/fs/xfs/xfs_bmap.c =================================================================== --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2006 Silicon Graphics, Inc. + * Copyright (c) 2000-2006, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -34,8 +34,8 @@ #include "xfs_dinode.h" #include "xfs_inode.h" #include "xfs_btree.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" +#include "xfs_dmapi.h" #include "xfs_ialloc.h" #include "xfs_itable.h" #include "xfs_dir2_data.h" Index: b/fs/xfs/xfs_bmap_btree.c =================================================================== --- a/fs/xfs/xfs_bmap_btree.c +++ b/fs/xfs/xfs_bmap_btree.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2003, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" Index: b/fs/xfs/xfs_btree.c =================================================================== --- a/fs/xfs/xfs_btree.c +++ b/fs/xfs/xfs_btree.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2002, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" Index: b/fs/xfs/xfs_buf_item.c =================================================================== --- a/fs/xfs/xfs_buf_item.c +++ b/fs/xfs/xfs_buf_item.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -24,7 +24,6 @@ #include "xfs_trans.h" #include "xfs_sb.h" #include "xfs_ag.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_buf_item.h" #include "xfs_trans_priv.h" Index: b/fs/xfs/xfs_da_btree.c =================================================================== --- a/fs/xfs/xfs_da_btree.c +++ b/fs/xfs/xfs_da_btree.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_da_btree.h" #include "xfs_bmap_btree.h" Index: b/fs/xfs/xfs_dfrag.c =================================================================== --- a/fs/xfs/xfs_dfrag.c +++ b/fs/xfs/xfs_dfrag.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2006 Silicon Graphics, Inc. + * Copyright (c) 2000-2006, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" Index: b/fs/xfs/xfs_dir2.c =================================================================== --- a/fs/xfs/xfs_dir2.c +++ b/fs/xfs/xfs_dir2.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2001, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_da_btree.h" #include "xfs_bmap_btree.h" Index: b/fs/xfs/xfs_dir2_block.c =================================================================== --- a/fs/xfs/xfs_dir2_block.c +++ b/fs/xfs/xfs_dir2_block.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2003, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -24,7 +24,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_da_btree.h" #include "xfs_bmap_btree.h" Index: b/fs/xfs/xfs_dir2_data.c =================================================================== --- a/fs/xfs/xfs_dir2_data.c +++ b/fs/xfs/xfs_dir2_data.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2002, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -24,7 +24,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_da_btree.h" #include "xfs_bmap_btree.h" Index: b/fs/xfs/xfs_dir2_leaf.c =================================================================== --- a/fs/xfs/xfs_dir2_leaf.c +++ b/fs/xfs/xfs_dir2_leaf.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2003, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_da_btree.h" #include "xfs_bmap_btree.h" Index: b/fs/xfs/xfs_dir2_node.c =================================================================== --- a/fs/xfs/xfs_dir2_node.c +++ b/fs/xfs/xfs_dir2_node.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -24,7 +24,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_da_btree.h" #include "xfs_bmap_btree.h" Index: b/fs/xfs/xfs_dir2_sf.c =================================================================== --- a/fs/xfs/xfs_dir2_sf.c +++ b/fs/xfs/xfs_dir2_sf.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2003, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -24,7 +24,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_da_btree.h" #include "xfs_bmap_btree.h" Index: b/fs/xfs/xfs_dmapi.h =================================================================== --- a/fs/xfs/xfs_dmapi.h +++ b/fs/xfs/xfs_dmapi.h @@ -167,4 +167,65 @@ typedef enum { DM_FLAGS_NDELAY : 0) #define AT_DELAY_FLAG(f) ((f & XFS_ATTR_NONBLOCK) ? DM_FLAGS_NDELAY : 0) +/* + * Prototypes and functions for the Data Migration subsystem. + */ + +extern int xfs_dmops_get(struct xfs_mount *); +extern void xfs_dmops_put(struct xfs_mount *); + +extern struct xfs_dmops xfs_dmcore_xfs; + +typedef int (*xfs_send_data_t)(int, struct xfs_inode *, + xfs_off_t, size_t, int, int *); +typedef int (*xfs_send_mmap_t)(struct vm_area_struct *, uint); +typedef int (*xfs_send_destroy_t)(struct xfs_inode *, dm_right_t); +typedef int (*xfs_send_namesp_t)(dm_eventtype_t, struct xfs_mount *, + struct xfs_inode *, dm_right_t, + struct xfs_inode *, dm_right_t, + const char *, const char *, mode_t, int, int); +typedef int (*xfs_send_mount_t)(struct xfs_mount *, dm_right_t, + char *, char *); +typedef void (*xfs_send_unmount_t)(struct xfs_mount *, struct xfs_inode *, + dm_right_t, mode_t, int, int); + +typedef struct xfs_dmops { + xfs_send_data_t xfs_send_data; + xfs_send_mmap_t xfs_send_mmap; + xfs_send_destroy_t xfs_send_destroy; + xfs_send_namesp_t xfs_send_namesp; + xfs_send_mount_t xfs_send_mount; + xfs_send_unmount_t xfs_send_unmount; +} xfs_dmops_t; + +#define XFS_DMAPI_UNMOUNT_FLAGS(mp) \ + (((mp)->m_dmevmask & (1 << DM_EVENT_UNMOUNT)) ? 0 : DM_FLAGS_UNWANTED) + +#define XFS_SEND_DATA(mp, ev,ip,off,len,fl,lock) \ + (*(mp)->m_dm_ops->xfs_send_data)(ev,ip,off,len,fl,lock) +#define XFS_SEND_MMAP(mp, vma,fl) \ + (*(mp)->m_dm_ops->xfs_send_mmap)(vma,fl) +#define XFS_SEND_DESTROY(mp, ip,right) \ + (*(mp)->m_dm_ops->xfs_send_destroy)(ip,right) +#define XFS_SEND_NAMESP(mp, ev,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ + (*(mp)->m_dm_ops->xfs_send_namesp)(ev,NULL,b1,r1,b2,r2,n1,n2,mode,rval,fl) +#define XFS_SEND_MOUNT(mp,right,path,name) \ + (*(mp)->m_dm_ops->xfs_send_mount)(mp,right,path,name) +#define XFS_SEND_PREUNMOUNT(mp) \ +do { \ + if (mp->m_flags & XFS_MOUNT_DMAPI) { \ + (*(mp)->m_dm_ops->xfs_send_namesp)(DM_EVENT_PREUNMOUNT, mp, \ + (mp)->m_rootip, DM_RIGHT_NULL, \ + (mp)->m_rootip, DM_RIGHT_NULL, \ + NULL, NULL, 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); \ + } \ +} while (0) +#define XFS_SEND_UNMOUNT(mp) \ +do { \ + if (mp->m_flags & XFS_MOUNT_DMAPI) { \ + (*(mp)->m_dm_ops->xfs_send_unmount)(mp, (mp)->m_rootip, \ + DM_RIGHT_NULL, 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); \ + } \ +} while (0) + #endif /* __XFS_DMAPI_H__ */ Index: b/fs/xfs/xfs_dmops.c =================================================================== --- a/fs/xfs/xfs_dmops.c +++ b/fs/xfs/xfs_dmops.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2003, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -21,10 +21,12 @@ #include "xfs_log.h" #include "xfs_trans.h" #include "xfs_sb.h" -#include "xfs_dmapi.h" #include "xfs_inum.h" #include "xfs_ag.h" #include "xfs_mount.h" +#include "xfs_bmap_btree.h" +#include "xfs_inode.h" +#include "xfs_dmapi.h" static struct xfs_dmops xfs_dmcore_stub = { Index: b/fs/xfs/xfs_error.c =================================================================== --- a/fs/xfs/xfs_error.c +++ b/fs/xfs/xfs_error.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2001, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -24,7 +24,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_dir2_sf.h" Index: b/fs/xfs/xfs_extfree_item.c =================================================================== --- a/fs/xfs/xfs_extfree_item.c +++ b/fs/xfs/xfs_extfree_item.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2001, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -24,7 +24,6 @@ #include "xfs_buf_item.h" #include "xfs_sb.h" #include "xfs_ag.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_trans_priv.h" #include "xfs_extfree_item.h" Index: b/fs/xfs/xfs_filestream.c =================================================================== --- a/fs/xfs/xfs_filestream.c +++ b/fs/xfs/xfs_filestream.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2006-2007 Silicon Graphics, Inc. + * Copyright (c) 2006-2007, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -24,7 +24,6 @@ #include "xfs_dinode.h" #include "xfs_inode.h" #include "xfs_ag.h" -#include "xfs_dmapi.h" #include "xfs_log.h" #include "xfs_trans.h" #include "xfs_sb.h" Index: b/fs/xfs/xfs_fsops.c =================================================================== --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" Index: b/fs/xfs/xfs_ialloc.c =================================================================== --- a/fs/xfs/xfs_ialloc.c +++ b/fs/xfs/xfs_ialloc.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2002, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" Index: b/fs/xfs/xfs_ialloc_btree.c =================================================================== --- a/fs/xfs/xfs_ialloc_btree.c +++ b/fs/xfs/xfs_ialloc_btree.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2001, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" Index: b/fs/xfs/xfs_iget.c =================================================================== --- a/fs/xfs/xfs_iget.c +++ b/fs/xfs/xfs_iget.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -26,7 +26,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" Index: b/fs/xfs/xfs_inode.c =================================================================== --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2006 Silicon Graphics, Inc. + * Copyright (c) 2000-2006, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -28,7 +28,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" Index: b/fs/xfs/xfs_inode.h =================================================================== --- a/fs/xfs/xfs_inode.h +++ b/fs/xfs/xfs_inode.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2003, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -221,12 +221,6 @@ struct xfs_mount; struct xfs_trans; struct xfs_dquot; -typedef struct dm_attrs_s { - __uint32_t da_dmevmask; /* DMIG event mask */ - __uint16_t da_dmstate; /* DMIG state info */ - __uint16_t da_pad; /* DMIG extra padding */ -} dm_attrs_t; - typedef struct xfs_inode { /* Inode linking and identification information. */ struct xfs_mount *i_mount; /* fs mount struct ptr */ Index: b/fs/xfs/xfs_inode_item.c =================================================================== --- a/fs/xfs/xfs_inode_item.c +++ b/fs/xfs/xfs_inode_item.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2002, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -26,7 +26,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_trans_priv.h" #include "xfs_bmap_btree.h" Index: b/fs/xfs/xfs_iomap.c =================================================================== --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2006 Silicon Graphics, Inc. + * Copyright (c) 2000-2006, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_ag.h" #include "xfs_dir2.h" #include "xfs_alloc.h" -#include "xfs_dmapi.h" #include "xfs_quota.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" Index: b/fs/xfs/xfs_itable.c =================================================================== --- a/fs/xfs/xfs_itable.c +++ b/fs/xfs/xfs_itable.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2002, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" Index: b/fs/xfs/xfs_log.c =================================================================== --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_error.h" #include "xfs_log_priv.h" Index: b/fs/xfs/xfs_log_recover.c =================================================================== --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2006 Silicon Graphics, Inc. + * Copyright (c) 2000-2006, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_error.h" #include "xfs_bmap_btree.h" Index: b/fs/xfs/xfs_mount.c =================================================================== --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" Index: b/fs/xfs/xfs_mount.h =================================================================== --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -66,65 +66,6 @@ struct xfs_nameops; struct xfs_ail; struct xfs_quotainfo; - -/* - * Prototypes and functions for the Data Migration subsystem. - */ - -typedef int (*xfs_send_data_t)(int, struct xfs_inode *, - xfs_off_t, size_t, int, int *); -typedef int (*xfs_send_mmap_t)(struct vm_area_struct *, uint); -typedef int (*xfs_send_destroy_t)(struct xfs_inode *, dm_right_t); -typedef int (*xfs_send_namesp_t)(dm_eventtype_t, struct xfs_mount *, - struct xfs_inode *, dm_right_t, - struct xfs_inode *, dm_right_t, - const unsigned char *, const unsigned char *, - mode_t, int, int); -typedef int (*xfs_send_mount_t)(struct xfs_mount *, dm_right_t, - char *, char *); -typedef void (*xfs_send_unmount_t)(struct xfs_mount *, struct xfs_inode *, - dm_right_t, mode_t, int, int); - -typedef struct xfs_dmops { - xfs_send_data_t xfs_send_data; - xfs_send_mmap_t xfs_send_mmap; - xfs_send_destroy_t xfs_send_destroy; - xfs_send_namesp_t xfs_send_namesp; - xfs_send_mount_t xfs_send_mount; - xfs_send_unmount_t xfs_send_unmount; -} xfs_dmops_t; - -#define XFS_DMAPI_UNMOUNT_FLAGS(mp) \ - (((mp)->m_dmevmask & (1 << DM_EVENT_UNMOUNT)) ? 0 : DM_FLAGS_UNWANTED) - -#define XFS_SEND_DATA(mp, ev,ip,off,len,fl,lock) \ - (*(mp)->m_dm_ops->xfs_send_data)(ev,ip,off,len,fl,lock) -#define XFS_SEND_MMAP(mp, vma,fl) \ - (*(mp)->m_dm_ops->xfs_send_mmap)(vma,fl) -#define XFS_SEND_DESTROY(mp, ip,right) \ - (*(mp)->m_dm_ops->xfs_send_destroy)(ip,right) -#define XFS_SEND_NAMESP(mp, ev,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ - (*(mp)->m_dm_ops->xfs_send_namesp)(ev,NULL,b1,r1,b2,r2,n1,n2,mode,rval,fl) -#define XFS_SEND_MOUNT(mp,right,path,name) \ - (*(mp)->m_dm_ops->xfs_send_mount)(mp,right,path,name) -#define XFS_SEND_PREUNMOUNT(mp) \ -do { \ - if (mp->m_flags & XFS_MOUNT_DMAPI) { \ - (*(mp)->m_dm_ops->xfs_send_namesp)(DM_EVENT_PREUNMOUNT, mp, \ - (mp)->m_rootip, DM_RIGHT_NULL, \ - (mp)->m_rootip, DM_RIGHT_NULL, \ - NULL, NULL, 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); \ - } \ -} while (0) -#define XFS_SEND_UNMOUNT(mp) \ -do { \ - if (mp->m_flags & XFS_MOUNT_DMAPI) { \ - (*(mp)->m_dm_ops->xfs_send_unmount)(mp, (mp)->m_rootip, \ - DM_RIGHT_NULL, 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); \ - } \ -} while (0) - - #ifdef HAVE_PERCPU_SB /* @@ -440,11 +381,6 @@ extern int xfs_sb_validate_fsb_count(str extern int xfs_dev_is_read_only(struct xfs_mount *, char *); -extern int xfs_dmops_get(struct xfs_mount *); -extern void xfs_dmops_put(struct xfs_mount *); - -extern struct xfs_dmops xfs_dmcore_xfs; - #endif /* __KERNEL__ */ extern void xfs_mod_sb(struct xfs_trans *, __int64_t); Index: b/fs/xfs/xfs_rename.c =================================================================== --- a/fs/xfs/xfs_rename.c +++ b/fs/xfs/xfs_rename.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2003, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -24,7 +24,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_da_btree.h" #include "xfs_bmap_btree.h" @@ -32,6 +31,7 @@ #include "xfs_attr_sf.h" #include "xfs_dinode.h" #include "xfs_inode.h" +#include "xfs_dmapi.h" #include "xfs_inode_item.h" #include "xfs_bmap.h" #include "xfs_error.h" Index: b/fs/xfs/xfs_rtalloc.c =================================================================== --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" Index: b/fs/xfs/xfs_rw.c =================================================================== --- a/fs/xfs/xfs_rw.c +++ b/fs/xfs/xfs_rw.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2006 Silicon Graphics, Inc. + * Copyright (c) 2000-2006, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" Index: b/fs/xfs/xfs_trans.c =================================================================== --- a/fs/xfs/xfs_trans.c +++ b/fs/xfs/xfs_trans.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2003, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_error.h" #include "xfs_da_btree.h" Index: b/fs/xfs/xfs_trans_ail.c =================================================================== --- a/fs/xfs/xfs_trans_ail.c +++ b/fs/xfs/xfs_trans_ail.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2002, 2005, 2010 SGI * Copyright (c) 2008 Dave Chinner * All Rights Reserved. * @@ -24,7 +24,6 @@ #include "xfs_trans.h" #include "xfs_sb.h" #include "xfs_ag.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_trans_priv.h" #include "xfs_error.h" Index: b/fs/xfs/xfs_trans_buf.c =================================================================== --- a/fs/xfs/xfs_trans_buf.c +++ b/fs/xfs/xfs_trans_buf.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2002, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" Index: b/fs/xfs/xfs_trans_extfree.c =================================================================== --- a/fs/xfs/xfs_trans_extfree.c +++ b/fs/xfs/xfs_trans_extfree.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000,2005 Silicon Graphics, Inc. + * Copyright (c) 2000, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -23,7 +23,6 @@ #include "xfs_trans.h" #include "xfs_sb.h" #include "xfs_ag.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_trans_priv.h" #include "xfs_extfree_item.h" Index: b/fs/xfs/xfs_trans_inode.c =================================================================== --- a/fs/xfs/xfs_trans_inode.c +++ b/fs/xfs/xfs_trans_inode.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000,2005 Silicon Graphics, Inc. + * Copyright (c) 2000, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" Index: b/fs/xfs/xfs_trans_item.c =================================================================== --- a/fs/xfs/xfs_trans_item.c +++ b/fs/xfs/xfs_trans_item.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2002, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -28,7 +28,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" STATIC int xfs_trans_unlock_chunk(xfs_log_item_chunk_t *, Index: b/fs/xfs/xfs_utils.c =================================================================== --- a/fs/xfs/xfs_utils.c +++ b/fs/xfs/xfs_utils.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2002, 2005, 2010 SGI * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -25,7 +25,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_dir2_sf.h" Index: b/fs/xfs/xfs_vnodeops.c =================================================================== --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -26,7 +26,6 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_dir2.h" -#include "xfs_dmapi.h" #include "xfs_mount.h" #include "xfs_da_btree.h" #include "xfs_bmap_btree.h" @@ -36,6 +35,7 @@ #include "xfs_attr_sf.h" #include "xfs_dinode.h" #include "xfs_inode.h" +#include "xfs_dmapi.h" #include "xfs_inode_item.h" #include "xfs_itable.h" #include "xfs_btree.h" From aelder@sgi.com Mon Jun 28 17:02:00 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=unavailable version=3.4.0-r929098 Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5SM20Nc044154 for ; Mon, 28 Jun 2010 17:02:00 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay3.corp.sgi.com (Postfix) with ESMTP id 27229AC016; Mon, 28 Jun 2010 15:04:43 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o5SM4gNW018115; Mon, 28 Jun 2010 17:04:42 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o5SM4gph018113; Mon, 28 Jun 2010 17:04:42 -0500 From: Alex Elder Message-Id: <201006282204.o5SM4gph018113@stout.americas.sgi.com> Date: Mon, 28 Jun 2010 17:04:42 -0500 To: xfs@oss.sgi.com Subject: [PATCH 02/15] xfs: rename and move definition of HAVE_DMAPI User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Change the HAVE_DMAPI symbol to be XFS_DMAPI instead, so it is more appropriately restricted to the XFS name space. Move its definition into "xfs_dmapi.h"; the only other file that needs it #includes that file. Signed-off-by: Alex Elder --- fs/xfs/xfs_dmapi.h | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) Index: b/fs/xfs/xfs_dmapi.h =================================================================== --- a/fs/xfs/xfs_dmapi.h +++ b/fs/xfs/xfs_dmapi.h @@ -18,6 +18,11 @@ #ifndef __XFS_DMAPI_H__ #define __XFS_DMAPI_H__ +#undef XFS_DMAPI +#if defined(CONFIG_XFS_DMAPI) || defined(CONFIG_XFS_DMAPI_MODULE) +#define XFS_DMAPI +#endif + /* Values used to define the on-disk version of dm_attrname_t. All * on-disk attribute names start with the 8-byte string "SGI_DMI_". * @@ -66,15 +71,15 @@ typedef enum { #define HAVE_DM_RIGHT_T /* Defines for determining if an event message should be sent. */ -#ifdef HAVE_DMAPI +#ifdef XFS_DMAPI #define DM_EVENT_ENABLED(ip, event) ( \ unlikely ((ip)->i_mount->m_flags & XFS_MOUNT_DMAPI) && \ ( ((ip)->i_d.di_dmevmask & (1 << event)) || \ ((ip)->i_mount->m_dmevmask & (1 << event)) ) \ ) -#else +#else /* ! XFS_DMAPI */ #define DM_EVENT_ENABLED(ip, event) (0) -#endif +#endif /* ! XFS_DMAPI */ #define DM_XFS_VALID_FS_EVENTS ( \ (1 << DM_EVENT_PREUNMOUNT) | \ From aelder@sgi.com Mon Jun 28 17:02:28 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5SM2RSb044202 for ; Mon, 28 Jun 2010 17:02:27 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay3.corp.sgi.com (Postfix) with ESMTP id 3C6A4AC016; Mon, 28 Jun 2010 15:05:13 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o5SM5CXj018152; Mon, 28 Jun 2010 17:05:12 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o5SM5CKp018150; Mon, 28 Jun 2010 17:05:12 -0500 From: Alex Elder Message-Id: <201006282205.o5SM5CKp018150@stout.americas.sgi.com> Date: Mon, 28 Jun 2010 17:05:12 -0500 To: xfs@oss.sgi.com Subject: [PATCH 05/15] xfs: rewrite DMAPI mount macros as functions User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Re-implement XFS_SEND_PREUNMOUNT(), XFS_SEND_MOUNT(), XFS_SEND_UNMOUNT, using real (static inline) functions. In XFS_SEND_MOUNT(), DM_RIGHT_NULL is is the only value passed for "right", so eliminate the argument and hard-code that value instead. Similarly, the "name" is always just the filesystem name recorded in the mount structure, so just use that. Also in XFS_SEND_MOUNT(), there was previously no check for whether XFS_MOUNT_DMAPI is enabled on the file system before dereferencing the m_dm_ops field. Add it, in preparation for eventually allowing that field to be null when DMAPI is not active. As before, if it's not enabled, the event function will return ENOSYS. Signed-off-by: Alex Elder --- fs/xfs/linux-2.6/xfs_super.c | 11 +++++-- fs/xfs/xfs_dmapi.h | 60 ++++++++++++++++++++++++++++++------------- 2 files changed, 50 insertions(+), 21 deletions(-) Index: b/fs/xfs/linux-2.6/xfs_super.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_super.c +++ b/fs/xfs/linux-2.6/xfs_super.c @@ -1206,7 +1206,7 @@ xfs_fs_put_super( xfs_sync_attr(mp, 0); } - XFS_SEND_PREUNMOUNT(mp); + xfs_dmapi_send_preunmount(mp); /* * Blow away any referenced inode in the filestreams cache. @@ -1217,7 +1217,7 @@ xfs_fs_put_super( XFS_bflush(mp->m_ddev_targp); - XFS_SEND_UNMOUNT(mp); + xfs_dmapi_send_unmount(mp); xfs_unmountfs(mp); xfs_freesb(mp); @@ -1607,7 +1607,12 @@ xfs_fs_fill_super( if (error) goto out_filestream_unmount; - XFS_SEND_MOUNT(mp, DM_RIGHT_NULL, mtpt, mp->m_fsname); + /* XXX + * This can return an error--at least ENOMEM and possibly + * others. If that happens, we should probably disable + * DMAPI on the file system or something. + */ + (void) xfs_dmapi_send_mount(mp, mtpt); sb->s_magic = XFS_SB_MAGIC; sb->s_blocksize = mp->m_sb.sb_blocksize; Index: b/fs/xfs/xfs_dmapi.h =================================================================== --- a/fs/xfs/xfs_dmapi.h +++ b/fs/xfs/xfs_dmapi.h @@ -217,23 +217,47 @@ xfs_dmapi_event_enabled(struct xfs_inode (*(mp)->m_dm_ops->xfs_send_destroy)(ip,right) #define XFS_SEND_NAMESP(mp, ev,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ (*(mp)->m_dm_ops->xfs_send_namesp)(ev,NULL,b1,r1,b2,r2,n1,n2,mode,rval,fl) -#define XFS_SEND_MOUNT(mp,right,path,name) \ - (*(mp)->m_dm_ops->xfs_send_mount)(mp,right,path,name) -#define XFS_SEND_PREUNMOUNT(mp) \ -do { \ - if (mp->m_flags & XFS_MOUNT_DMAPI) { \ - (*(mp)->m_dm_ops->xfs_send_namesp)(DM_EVENT_PREUNMOUNT, mp, \ - (mp)->m_rootip, DM_RIGHT_NULL, \ - (mp)->m_rootip, DM_RIGHT_NULL, \ - NULL, NULL, 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); \ - } \ -} while (0) -#define XFS_SEND_UNMOUNT(mp) \ -do { \ - if (mp->m_flags & XFS_MOUNT_DMAPI) { \ - (*(mp)->m_dm_ops->xfs_send_unmount)(mp, (mp)->m_rootip, \ - DM_RIGHT_NULL, 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); \ - } \ -} while (0) + +static inline int +xfs_dmapi_send_mount( + struct xfs_mount *mp, + char *path) +{ + if (mp->m_flags & XFS_MOUNT_DMAPI) { + xfs_send_mount_t send_mount = mp->m_dm_ops->xfs_send_mount; + + return send_mount(mp, DM_RIGHT_NULL, path, mp->m_fsname); + } + + return ENOSYS; +} + + +static inline void +xfs_dmapi_send_preunmount( + struct xfs_mount *mp) +{ + if (mp->m_flags & XFS_MOUNT_DMAPI) { + xfs_send_namesp_t send_namesp = mp->m_dm_ops->xfs_send_namesp; + + (void) send_namesp(DM_EVENT_PREUNMOUNT, mp, + mp->m_rootip, DM_RIGHT_NULL, + mp->m_rootip, DM_RIGHT_NULL, + NULL, NULL, 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); + } +} + +static inline void +xfs_dmapi_send_unmount( + struct xfs_mount *mp) +{ + if (mp->m_flags & XFS_MOUNT_DMAPI) { + xfs_send_unmount_t send_unmount = + mp->m_dm_ops->xfs_send_unmount; + + send_unmount(mp, mp->m_rootip, DM_RIGHT_NULL, + 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); + } +} #endif /* __XFS_DMAPI_H__ */ From aelder@sgi.com Mon Jun 28 17:02:37 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_22 autolearn=no version=3.4.0-r929098 Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5SM2btx044213 for ; Mon, 28 Jun 2010 17:02:37 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay1.corp.sgi.com (Postfix) with ESMTP id ECFBB8F80CF; Mon, 28 Jun 2010 15:05:22 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o5SM5M2r018163; Mon, 28 Jun 2010 17:05:22 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o5SM5M6w018161; Mon, 28 Jun 2010 17:05:22 -0500 From: Alex Elder Message-Id: <201006282205.o5SM5M6w018161@stout.americas.sgi.com> Date: Mon, 28 Jun 2010 17:05:22 -0500 To: xfs@oss.sgi.com Subject: [PATCH 06/15] xfs: rewrite XFS_SEND_DATA() as a function User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Re-implement XFS_SEND_DATA() using a real (static inline) function. The mount point passed in to XFS_SEND_DATA() is always taken from the i_mount field of an xfs_inode, which is also provided as an argument. Get rid of the mount point argument altogether, and compute what would have been passed within the macro. Make the first argument be the inode "target" of the event being signalled. Also, the implementation of the send data event doesn't side-effect the value whose address is passed in its lock_flags argument. So switch it over to just pass the lock_flags value itself, rather than the address of a variable. Finally, move the test for whether a given event is enabled into the called function. There's a call in xfs_write() that needs to check if the event is enabled before making the call, in order to avoid unnecessarily unlocking and relocking the target inode. Take the branch more generally, whenever (but only when) DMAPI is enabled on the file system; if it is, the second pass is not expensive. Signed-off-by: Alex Elder --- fs/xfs/linux-2.6/xfs_file.c | 41 ++++++++++++++++++----------------------- fs/xfs/xfs_bmap.c | 7 +++---- fs/xfs/xfs_dmapi.h | 22 +++++++++++++++++++--- fs/xfs/xfs_vnodeops.c | 23 ++++++++++------------- 4 files changed, 50 insertions(+), 43 deletions(-) Index: b/fs/xfs/linux-2.6/xfs_file.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_file.c +++ b/fs/xfs/linux-2.6/xfs_file.c @@ -275,15 +275,13 @@ xfs_file_aio_read( mutex_lock(&inode->i_mutex); xfs_ilock(ip, XFS_IOLOCK_SHARED); - if (xfs_dmapi_event_enabled(ip, DM_EVENT_READ) && - !(ioflags & IO_INVIS)) { - int iolock = XFS_IOLOCK_SHARED; + if (!(ioflags & IO_INVIS)) { int dmflags = FILP_DELAY_FLAG(file); if (ioflags & IO_ISDIRECT) dmflags |= DM_FLAGS_IMUX; - ret = -XFS_SEND_DATA(mp, DM_EVENT_READ, ip, iocb->ki_pos, size, - dmflags, &iolock); + ret = -xfs_dmapi_send_data(ip, DM_EVENT_READ, iocb->ki_pos, + size, dmflags, XFS_IOLOCK_SHARED); if (ret) { xfs_iunlock(ip, XFS_IOLOCK_SHARED); if (unlikely(ioflags & IO_ISDIRECT)) @@ -338,13 +336,12 @@ xfs_file_splice_read( xfs_ilock(ip, XFS_IOLOCK_SHARED); - if (xfs_dmapi_event_enabled(ip, DM_EVENT_READ) - && !(ioflags & IO_INVIS)) { - int iolock = XFS_IOLOCK_SHARED; + if (!(ioflags & IO_INVIS)) { int error; - error = XFS_SEND_DATA(mp, DM_EVENT_READ, ip, *ppos, count, - FILP_DELAY_FLAG(infilp), &iolock); + error = xfs_dmapi_send_data(ip, DM_EVENT_READ, *ppos, + count, FILP_DELAY_FLAG(infilp), + XFS_IOLOCK_SHARED); if (error) { xfs_iunlock(ip, XFS_IOLOCK_SHARED); return -error; @@ -386,13 +383,12 @@ xfs_file_splice_write( xfs_ilock(ip, XFS_IOLOCK_EXCL); - if (xfs_dmapi_event_enabled(ip, DM_EVENT_WRITE) - && !(ioflags & IO_INVIS)) { - int iolock = XFS_IOLOCK_EXCL; + if (!(ioflags & IO_INVIS)) { int error; - error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, ip, *ppos, count, - FILP_DELAY_FLAG(outfilp), &iolock); + error = xfs_dmapi_send_data(ip, DM_EVENT_WRITE, *ppos, count, + FILP_DELAY_FLAG(outfilp), + XFS_IOLOCK_EXCL); if (error) { xfs_iunlock(ip, XFS_IOLOCK_EXCL); return -error; @@ -678,21 +674,20 @@ start: goto out_unlock_mutex; } - if (xfs_dmapi_event_enabled(ip, DM_EVENT_WRITE) && - !(ioflags & IO_INVIS) && !eventsent) { - int dmflags = FILP_DELAY_FLAG(file); + if (mp->m_flags & XFS_MOUNT_DMAPI && !(ioflags & IO_INVIS) && + !eventsent) { + int dmflags = FILP_DELAY_FLAG(file); if (need_i_mutex) dmflags |= DM_FLAGS_IMUX; xfs_iunlock(ip, XFS_ILOCK_EXCL); - error = XFS_SEND_DATA(ip->i_mount, DM_EVENT_WRITE, ip, - pos, count, dmflags, &iolock); - if (error) { + error = xfs_dmapi_send_data(ip, DM_EVENT_WRITE, + pos, count, dmflags, iolock); + if (error) goto out_unlock_internal; - } - xfs_ilock(ip, XFS_ILOCK_EXCL); eventsent = 1; + xfs_ilock(ip, XFS_ILOCK_EXCL); /* * The iolock was dropped and reacquired in XFS_SEND_DATA Index: b/fs/xfs/xfs_bmap.c =================================================================== --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -5619,10 +5619,9 @@ xfs_getbmap( * could misinterpret holes in a DMAPI file as true holes, * when in fact they may represent offline user data. */ - if (xfs_dmapi_event_enabled(ip, DM_EVENT_READ) && - !(iflags & BMV_IF_NO_DMAPI_READ)) { - error = XFS_SEND_DATA(mp, DM_EVENT_READ, ip, - 0, 0, 0, NULL); + if (!(iflags & BMV_IF_NO_DMAPI_READ)) { + error = xfs_dmapi_send_data(ip, DM_EVENT_READ, + 0, 0, 0, 0); if (error) return XFS_ERROR(error); } Index: b/fs/xfs/xfs_dmapi.h =================================================================== --- a/fs/xfs/xfs_dmapi.h +++ b/fs/xfs/xfs_dmapi.h @@ -166,7 +166,7 @@ extern void xfs_dmops_put(struct xfs_mou extern struct xfs_dmops xfs_dmcore_xfs; typedef int (*xfs_send_data_t)(int, struct xfs_inode *, - xfs_off_t, size_t, int, int *); + xfs_off_t, size_t, int, int); typedef int (*xfs_send_mmap_t)(struct vm_area_struct *, uint); typedef int (*xfs_send_destroy_t)(struct xfs_inode *, dm_right_t); typedef int (*xfs_send_namesp_t)(dm_eventtype_t, struct xfs_mount *, @@ -209,8 +209,24 @@ xfs_dmapi_event_enabled(struct xfs_inode #endif /* ! XFS_DMAPI */ } -#define XFS_SEND_DATA(mp, ev,ip,off,len,fl,lock) \ - (*(mp)->m_dm_ops->xfs_send_data)(ev,ip,off,len,fl,lock) +static inline int +xfs_dmapi_send_data( + struct xfs_inode *ip, + dm_eventtype_t event, + xfs_off_t offset, + size_t length, + int flags, + int lock_flags) +{ + xfs_send_data_t send_data; + + if (! xfs_dmapi_event_enabled(ip, event)) + return 0; + send_data = ip->i_mount->m_dm_ops->xfs_send_data; + + return send_data(event, ip, offset, length, flags, lock_flags); +} + #define XFS_SEND_MMAP(mp, vma,fl) \ (*(mp)->m_dm_ops->xfs_send_mmap)(vma,fl) #define XFS_SEND_DESTROY(mp, ip,right) \ Index: b/fs/xfs/xfs_vnodeops.c =================================================================== --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -143,13 +143,12 @@ xfs_setattr( goto error_return; } } else { - if (xfs_dmapi_event_enabled(ip, DM_EVENT_TRUNCATE) && - !(flags & XFS_ATTR_DMI)) { + if (!(flags & XFS_ATTR_DMI)) { int dmflags = AT_DELAY_FLAG(flags); dmflags |= DM_FLAGS_IALLOCSEM_WR|DM_FLAGS_IMUX; - code = XFS_SEND_DATA(mp, DM_EVENT_TRUNCATE, ip, - iattr->ia_size, 0, dmflags, NULL); + code = xfs_dmapi_send_data(ip, DM_EVENT_TRUNCATE, + iattr->ia_size, 0, dmflags, 0); if (code) { lock_flags = 0; goto error_return; @@ -2417,15 +2416,14 @@ xfs_alloc_file_space( /* Generate a DMAPI event if needed. */ if (alloc_type != 0 && offset < ip->i_size && - (attr_flags & XFS_ATTR_DMI) == 0 && - xfs_dmapi_event_enabled(ip, DM_EVENT_WRITE)) { + (attr_flags & XFS_ATTR_DMI) == 0) { xfs_off_t end_dmi_offset; end_dmi_offset = offset+len; if (end_dmi_offset > ip->i_size) end_dmi_offset = ip->i_size; - error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, ip, offset, - end_dmi_offset - offset, 0, NULL); + error = xfs_dmapi_send_data(ip, DM_EVENT_WRITE, offset, + end_dmi_offset - offset, 0, 0); if (error) return error; } @@ -2691,19 +2689,18 @@ xfs_free_file_space( error = 0; if (len <= 0) /* if nothing being freed */ - return error; + return 0; rt = XFS_IS_REALTIME_INODE(ip); startoffset_fsb = XFS_B_TO_FSB(mp, offset); end_dmi_offset = offset + len; endoffset_fsb = XFS_B_TO_FSBT(mp, end_dmi_offset); - if (offset < ip->i_size && (attr_flags & XFS_ATTR_DMI) == 0 && - xfs_dmapi_event_enabled(ip, DM_EVENT_WRITE)) { + if (offset < ip->i_size && (attr_flags & XFS_ATTR_DMI) == 0) { if (end_dmi_offset > ip->i_size) end_dmi_offset = ip->i_size; - error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, ip, + error = xfs_dmapi_send_data(ip, DM_EVENT_WRITE, offset, end_dmi_offset - offset, - AT_DELAY_FLAG(attr_flags), NULL); + AT_DELAY_FLAG(attr_flags), 0); if (error) return error; } From aelder@sgi.com Mon Jun 28 17:02:52 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5SM2p6X044268 for ; Mon, 28 Jun 2010 17:02:52 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay3.corp.sgi.com (Postfix) with ESMTP id 4F9C3AC016; Mon, 28 Jun 2010 15:05:33 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o5SM5W7P018171; Mon, 28 Jun 2010 17:05:32 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o5SM5Wps018169; Mon, 28 Jun 2010 17:05:32 -0500 From: Alex Elder Message-Id: <201006282205.o5SM5Wps018169@stout.americas.sgi.com> Date: Mon, 28 Jun 2010 17:05:32 -0500 To: xfs@oss.sgi.com Subject: [PATCH 07/15] xfs: rewrite XFS_SEND_MMAP() as a function User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Re-implement XFS_SEND_MMAP() using a real (static inline) function. The mount point passed in to XFS_SEND_MMAP() is always derived from from the vma struct that is the subject of VM operation. Get rid of the mount point argument altogether, and compute what would have been passed within the macro, making the first argument the vma "target" of the event being signalled. Finally, move the checks for whether an event is enabled into the called function. Signed-off-by: Alex Elder --- fs/xfs/xfs_dmapi.h | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) Index: b/fs/xfs/xfs_dmapi.h =================================================================== --- a/fs/xfs/xfs_dmapi.h +++ b/fs/xfs/xfs_dmapi.h @@ -227,8 +227,24 @@ xfs_dmapi_send_data( return send_data(event, ip, offset, length, flags, lock_flags); } -#define XFS_SEND_MMAP(mp, vma,fl) \ - (*(mp)->m_dm_ops->xfs_send_mmap)(vma,fl) +static inline int +xfs_dmapi_send_mmap( + struct vm_area_struct *vma, + unsigned long vm_flags) +{ + struct inode *inode = vma->vm_file->f_path.dentry->d_inode; + struct xfs_mount *mp = XFS_M(inode->i_sb); + + if (mp->m_flags & XFS_MOUNT_DMAPI) { + xfs_send_mmap_t send_mmap = mp->m_dm_ops->xfs_send_mmap; + + return send_mmap(vma, vm_flags); + } + ASSERT_ALWAYS(vm_flags == VM_WRITE); + + return 0; +} + #define XFS_SEND_DESTROY(mp, ip,right) \ (*(mp)->m_dm_ops->xfs_send_destroy)(ip,right) #define XFS_SEND_NAMESP(mp, ev,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ From aelder@sgi.com Mon Jun 28 17:02:58 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5SM2vYh044289 for ; Mon, 28 Jun 2010 17:02:57 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay3.corp.sgi.com (Postfix) with ESMTP id 3AFABAC020; Mon, 28 Jun 2010 15:05:43 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o5SM5gwx018179; Mon, 28 Jun 2010 17:05:42 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o5SM5g24018177; Mon, 28 Jun 2010 17:05:42 -0500 From: Alex Elder Message-Id: <201006282205.o5SM5g24018177@stout.americas.sgi.com> Date: Mon, 28 Jun 2010 17:05:42 -0500 To: xfs@oss.sgi.com Subject: [PATCH 08/15] xfs: rewrite XFS_SEND_DESTROY() as a function User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Re-implement XFS_SEND_DESTROY() using a real (static inline) function. The mount point passed in to XFS_SEND_DESTROY() is always taken from the i_mount field of the xfs_inode which is also provided. Get rid of the mount point argument altogether, and compute what would have been passed within the macro. Finally, move the test for whether the event is enabled into the called function. Signed-off-by: Alex Elder --- fs/xfs/xfs_dmapi.h | 16 ++++++++++++++-- fs/xfs/xfs_vnodeops.c | 5 ++--- 2 files changed, 16 insertions(+), 5 deletions(-) Index: b/fs/xfs/xfs_dmapi.h =================================================================== --- a/fs/xfs/xfs_dmapi.h +++ b/fs/xfs/xfs_dmapi.h @@ -245,8 +245,20 @@ xfs_dmapi_send_mmap( return 0; } -#define XFS_SEND_DESTROY(mp, ip,right) \ - (*(mp)->m_dm_ops->xfs_send_destroy)(ip,right) +static inline int +xfs_dmapi_send_destroy( + struct xfs_inode *ip, + dm_right_t right) +{ + xfs_send_destroy_t send_destroy; + + if (!xfs_dmapi_event_enabled(ip, DM_EVENT_DESTROY)) + return 0; + send_destroy = ip->i_mount->m_dm_ops->xfs_send_destroy; + + return send_destroy(ip, right); +} + #define XFS_SEND_NAMESP(mp, ev,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ (*(mp)->m_dm_ops->xfs_send_namesp)(ev,NULL,b1,r1,b2,r2,n1,n2,mode,rval,fl) Index: b/fs/xfs/xfs_vnodeops.c =================================================================== --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -1061,9 +1061,8 @@ xfs_inactive( mp = ip->i_mount; - if (ip->i_d.di_nlink == 0 && - xfs_dmapi_event_enabled(ip, DM_EVENT_DESTROY)) - XFS_SEND_DESTROY(mp, ip, DM_RIGHT_NULL); + if (ip->i_d.di_nlink == 0) + (void) xfs_dmapi_send_destroy(ip, DM_RIGHT_NULL); error = 0; From aelder@sgi.com Mon Jun 28 17:03:07 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5SM37mN044306 for ; Mon, 28 Jun 2010 17:03:07 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay2.corp.sgi.com (Postfix) with ESMTP id F3B61304048; Mon, 28 Jun 2010 15:05:52 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o5SM5qbP018196; Mon, 28 Jun 2010 17:05:52 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o5SM5qNZ018194; Mon, 28 Jun 2010 17:05:52 -0500 From: Alex Elder Message-Id: <201006282205.o5SM5qNZ018194@stout.americas.sgi.com> Date: Mon, 28 Jun 2010 17:05:52 -0500 To: xfs@oss.sgi.com Subject: [PATCH 09/15] xfs: rewrite XFS_SEND_NAMESP() as a function User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Re-implement XFS_SEND_NAMESP() using a real (static inline) function. The mount point passed in to XFS_SEND_NAMESP() is always taken from the i_mount field of the first xfs_inode which is also provided. (If two inodes are passed they need to reside in the same filesystem.) Get rid of the mount point argument altogether, and compute what would have been passed within the macro, making the first argument be the inode "target" of the event being signalled. Rearrange the arguments to the XFS_SEND_NAMESP() macro to be more regular, since they're a little wonky. Finally, move the test for whether a given event is enabled into the called function. In a few cases this depends on both inodes rather than just the first, so this ends up being more involved, but I think it's better to hide these details. Note that there also a call in xfs_file_aio_write() that needs to check if the event is enabled before making the call, in order to avoid unnecessarily unlocking and relocking the target inode. Take the branch more generally when DMAPI is enabled on the file system. This should be an unusual case (ENOSPC), so we'll not worry about the extra overhead. Signed-off-by: Alex Elder --- fs/xfs/linux-2.6/xfs_file.c | 8 +-- fs/xfs/linux-2.6/xfs_ioctl.c | 9 +-- fs/xfs/xfs_dmapi.h | 69 ++++++++++++++++++++++---- fs/xfs/xfs_rename.c | 29 ++++------- fs/xfs/xfs_vnodeops.c | 112 ++++++++++++++++++------------------------- 5 files changed, 126 insertions(+), 101 deletions(-) Index: b/fs/xfs/linux-2.6/xfs_file.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_file.c +++ b/fs/xfs/linux-2.6/xfs_file.c @@ -830,14 +830,14 @@ write_retry: xfs_iunlock(ip, XFS_ILOCK_EXCL); } - if (ret == -ENOSPC && - xfs_dmapi_event_enabled(ip, DM_EVENT_NOSPACE) && + if (ret == -ENOSPC && mp->m_flags & XFS_MOUNT_DMAPI && !(ioflags & IO_INVIS)) { xfs_iunlock(ip, iolock); if (need_i_mutex) mutex_unlock(&inode->i_mutex); - error = XFS_SEND_NAMESP(ip->i_mount, DM_EVENT_NOSPACE, ip, - DM_RIGHT_NULL, ip, DM_RIGHT_NULL, NULL, NULL, + error = xfs_dmapi_send_namesp(xip, DM_RIGHT_NULL, NULL, + DM_EVENT_NOSPACE, + xip, DM_RIGHT_NULL, NULL, 0, 0, 0); /* Delay flag intentionally unused */ if (need_i_mutex) mutex_lock(&inode->i_mutex); Index: b/fs/xfs/linux-2.6/xfs_ioctl.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_ioctl.c +++ b/fs/xfs/linux-2.6/xfs_ioctl.c @@ -1120,11 +1120,10 @@ xfs_ioctl_setattr( if (code) return code; - if (xfs_dmapi_event_enabled(ip, DM_EVENT_ATTRIBUTE)) { - XFS_SEND_NAMESP(mp, DM_EVENT_ATTRIBUTE, ip, DM_RIGHT_NULL, - NULL, DM_RIGHT_NULL, NULL, NULL, 0, 0, - (mask & FSX_NONBLOCK) ? DM_FLAGS_NDELAY : 0); - } + (void) xfs_dmapi_send_namesp(ip, DM_RIGHT_NULL, NULL, + DM_EVENT_ATTRIBUTE, + NULL, DM_RIGHT_NULL, NULL, + 0, 0, (mask & FSX_NONBLOCK) ? DM_FLAGS_NDELAY : 0); return 0; Index: b/fs/xfs/xfs_dmapi.h =================================================================== --- a/fs/xfs/xfs_dmapi.h +++ b/fs/xfs/xfs_dmapi.h @@ -259,8 +259,60 @@ xfs_dmapi_send_destroy( return send_destroy(ip, right); } -#define XFS_SEND_NAMESP(mp, ev,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ - (*(mp)->m_dm_ops->xfs_send_namesp)(ev,NULL,b1,r1,b2,r2,n1,n2,mode,rval,fl) +static inline int +xfs_dmapi_send_namesp( + struct xfs_inode *ip1, + dm_right_t right1, + const char *name1, + dm_eventtype_t event, + struct xfs_inode *ip2, + dm_right_t right2, + const char *name2, + mode_t mode, + int ret, + int flags) +{ + int enabled; + xfs_send_namesp_t send_namesp; + + ASSERT(ip1 != NULL); + if (ip2 && ip1->i_mount != ip2->i_mount) + return -EINVAL; + + switch (event) { + case DM_EVENT_PREUNMOUNT: /* xfs_dmapi_send_preunmount() */ + enabled = 1; + break; + case DM_EVENT_CREATE: + case DM_EVENT_POSTCREATE: + case DM_EVENT_REMOVE: + case DM_EVENT_POSTREMOVE: + case DM_EVENT_LINK: + case DM_EVENT_POSTLINK: + case DM_EVENT_SYMLINK: + case DM_EVENT_POSTSYMLINK: + case DM_EVENT_ATTRIBUTE: + case DM_EVENT_NOSPACE: + enabled = xfs_dmapi_event_enabled(ip1, event); + break; + case DM_EVENT_RENAME: + case DM_EVENT_POSTRENAME: + enabled = xfs_dmapi_event_enabled(ip1, event) || + xfs_dmapi_event_enabled(ip2, event); + break; + default: + ASSERT(0); + enabled = 0; + break; + } + if (!enabled) + return 0; + + send_namesp = ip1->i_mount->m_dm_ops->xfs_send_namesp; + + return send_namesp(event, NULL, ip1, right1, ip2, right2, + name1, name2, mode, ret, flags); +} static inline int xfs_dmapi_send_mount( @@ -281,14 +333,11 @@ static inline void xfs_dmapi_send_preunmount( struct xfs_mount *mp) { - if (mp->m_flags & XFS_MOUNT_DMAPI) { - xfs_send_namesp_t send_namesp = mp->m_dm_ops->xfs_send_namesp; - - (void) send_namesp(DM_EVENT_PREUNMOUNT, mp, - mp->m_rootip, DM_RIGHT_NULL, - mp->m_rootip, DM_RIGHT_NULL, - NULL, NULL, 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); - } + if (mp->m_flags & XFS_MOUNT_DMAPI) + (void) xfs_dmapi_send_namesp(mp->m_rootip, DM_RIGHT_NULL, NULL, + DM_EVENT_PREUNMOUNT, + mp->m_rootip, DM_RIGHT_NULL, NULL, + 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); } static inline void Index: b/fs/xfs/xfs_rename.c =================================================================== --- a/fs/xfs/xfs_rename.c +++ b/fs/xfs/xfs_rename.c @@ -119,16 +119,13 @@ xfs_rename( xfs_itrace_entry(src_dp); xfs_itrace_entry(target_dp); - if (xfs_dmapi_event_enabled(src_dp, DM_EVENT_RENAME) || - xfs_dmapi_event_enabled(target_dp, DM_EVENT_RENAME)) { - error = XFS_SEND_NAMESP(mp, DM_EVENT_RENAME, - src_dp, DM_RIGHT_NULL, - target_dp, DM_RIGHT_NULL, - src_name->name, target_name->name, - 0, 0, 0); - if (error) - return error; - } + error = xfs_dmapi_send_namesp(src_dp, DM_RIGHT_NULL, src_name->name, + DM_EVENT_RENAME, + target_dp, DM_RIGHT_NULL, target_name->name, + 0, 0, 0); + if (error) + return error; + /* Return through std_return after this point. */ new_parent = (src_dp != target_dp); @@ -374,14 +371,10 @@ xfs_rename( /* Fall through to std_return with error = 0 or errno from * xfs_trans_commit */ std_return: - if (xfs_dmapi_event_enabled(src_dp, DM_EVENT_POSTRENAME) || - xfs_dmapi_event_enabled(target_dp, DM_EVENT_POSTRENAME)) { - (void) XFS_SEND_NAMESP (mp, DM_EVENT_POSTRENAME, - src_dp, DM_RIGHT_NULL, - target_dp, DM_RIGHT_NULL, - src_name->name, target_name->name, - 0, error, 0); - } + (void) xfs_dmapi_send_namesp(src_dp, DM_RIGHT_NULL, src_name->name, + DM_EVENT_POSTRENAME, + target_dp, DM_RIGHT_NULL, target_name->name, + 0, error, 0); return error; abort_return: Index: b/fs/xfs/xfs_vnodeops.c =================================================================== --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -471,10 +471,10 @@ xfs_setattr( return XFS_ERROR(code); } - if (xfs_dmapi_event_enabled(ip, DM_EVENT_ATTRIBUTE) && - !(flags & XFS_ATTR_DMI)) { - (void) XFS_SEND_NAMESP(mp, DM_EVENT_ATTRIBUTE, ip, DM_RIGHT_NULL, - NULL, DM_RIGHT_NULL, NULL, NULL, + if (!(flags & XFS_ATTR_DMI)) { + (void) xfs_dmapi_send_namesp(ip, DM_RIGHT_NULL, NULL, + DM_EVENT_ATTRIBUTE, + NULL, DM_RIGHT_NULL, NULL, 0, 0, AT_DELAY_FLAG(flags)); } return 0; @@ -1315,15 +1315,12 @@ xfs_create( if (XFS_FORCED_SHUTDOWN(mp)) return XFS_ERROR(EIO); - if (xfs_dmapi_event_enabled(dp, DM_EVENT_CREATE)) { - error = XFS_SEND_NAMESP(mp, DM_EVENT_CREATE, - dp, DM_RIGHT_NULL, NULL, - DM_RIGHT_NULL, name->name, NULL, + error = xfs_dmapi_send_namesp(dp, DM_RIGHT_NULL, name->name, + DM_EVENT_CREATE, + NULL, DM_RIGHT_NULL, NULL, mode, 0, 0); - - if (error) - return error; - } + if (error) + return error; if (dp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) prid = dp->i_d.di_projid; @@ -1491,11 +1488,10 @@ xfs_create( /* Fallthrough to std_return with error = 0 */ std_return: - if (xfs_dmapi_event_enabled(dp, DM_EVENT_POSTCREATE)) { - XFS_SEND_NAMESP(mp, DM_EVENT_POSTCREATE, dp, DM_RIGHT_NULL, - ip, DM_RIGHT_NULL, name->name, NULL, mode, - error, 0); - } + (void) xfs_dmapi_send_namesp(dp, DM_RIGHT_NULL, name->name, + DM_EVENT_POSTCREATE, + ip, DM_RIGHT_NULL, NULL, + mode, error, 0); return error; @@ -1733,13 +1729,12 @@ xfs_remove( if (XFS_FORCED_SHUTDOWN(mp)) return XFS_ERROR(EIO); - if (xfs_dmapi_event_enabled(dp, DM_EVENT_REMOVE)) { - error = XFS_SEND_NAMESP(mp, DM_EVENT_REMOVE, dp, DM_RIGHT_NULL, - NULL, DM_RIGHT_NULL, name->name, NULL, - ip->i_d.di_mode, 0, 0); - if (error) - return error; - } + error = xfs_dmapi_send_namesp(dp, DM_RIGHT_NULL, name->name, + DM_EVENT_REMOVE, + NULL, DM_RIGHT_NULL, NULL, + ip->i_d.di_mode, 0, 0); + if (error) + return error; error = xfs_qm_dqattach(dp, 0); if (error) @@ -1879,11 +1874,10 @@ xfs_remove( xfs_filestream_deassociate(ip); std_return: - if (xfs_dmapi_event_enabled(dp, DM_EVENT_POSTREMOVE)) { - XFS_SEND_NAMESP(mp, DM_EVENT_POSTREMOVE, dp, DM_RIGHT_NULL, - NULL, DM_RIGHT_NULL, name->name, NULL, + (void) xfs_dmapi_send_namesp(dp, DM_RIGHT_NULL, name->name, + DM_EVENT_POSTREMOVE, + NULL, DM_RIGHT_NULL, NULL, ip->i_d.di_mode, error, 0); - } return error; @@ -1918,14 +1912,12 @@ xfs_link( if (XFS_FORCED_SHUTDOWN(mp)) return XFS_ERROR(EIO); - if (xfs_dmapi_event_enabled(tdp, DM_EVENT_LINK)) { - error = XFS_SEND_NAMESP(mp, DM_EVENT_LINK, - tdp, DM_RIGHT_NULL, - sip, DM_RIGHT_NULL, - target_name->name, NULL, 0, 0, 0); - if (error) - return error; - } + error = xfs_dmapi_send_namesp(tdp, DM_RIGHT_NULL, target_name->name, + DM_EVENT_LINK, + sip, DM_RIGHT_NULL, NULL, + 0, 0, 0); + if (error) + return error; /* Return through std_return after this point. */ @@ -2021,12 +2013,11 @@ xfs_link( /* Fall through to std_return with error = 0. */ std_return: - if (xfs_dmapi_event_enabled(sip, DM_EVENT_POSTLINK)) { - (void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTLINK, - tdp, DM_RIGHT_NULL, - sip, DM_RIGHT_NULL, - target_name->name, NULL, 0, error, 0); - } + (void) xfs_dmapi_send_namesp(tdp, DM_RIGHT_NULL, target_name->name, + DM_EVENT_POSTLINK, + sip, DM_RIGHT_NULL, NULL, + 0, error, 0); + return error; abort_return: @@ -2087,14 +2078,12 @@ xfs_symlink( if (pathlen >= MAXPATHLEN) /* total string too long */ return XFS_ERROR(ENAMETOOLONG); - if (xfs_dmapi_event_enabled(dp, DM_EVENT_SYMLINK)) { - error = XFS_SEND_NAMESP(mp, DM_EVENT_SYMLINK, dp, - DM_RIGHT_NULL, NULL, DM_RIGHT_NULL, - link_name->name, - (unsigned char *)target_path, 0, 0, 0); - if (error) - return error; - } + error = xfs_dmapi_send_namesp(dp, DM_RIGHT_NULL, link_name->name, + DM_EVENT_SYMLINK, + NULL, DM_RIGHT_NULL, + (unsigned char *)target_path, 0, 0, 0); + if (error) + return error; /* Return through std_return after this point. */ @@ -2282,14 +2271,10 @@ xfs_symlink( /* Fall through to std_return with error = 0 or errno from * xfs_trans_commit */ std_return: - if (xfs_dmapi_event_enabled(dp, DM_EVENT_POSTSYMLINK)) { - (void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTSYMLINK, - dp, DM_RIGHT_NULL, - error ? NULL : ip, - DM_RIGHT_NULL, link_name->name, - (unsigned char *)target_path, - 0, error, 0); - } + (void) xfs_dmapi_send_namesp(dp, DM_RIGHT_NULL, link_name->name, + DM_EVENT_POSTSYMLINK, + error ? NULL : ip, DM_RIGHT_NULL, + (unsigned char *) target_path, 0, error, 0); if (!error) *ipp = ip; @@ -2528,12 +2513,11 @@ retry: allocatesize_fsb -= allocated_fsb; } dmapi_enospc_check: - if (error == ENOSPC && (attr_flags & XFS_ATTR_DMI) == 0 && - xfs_dmapi_event_enabled(ip, DM_EVENT_NOSPACE)) { - error = XFS_SEND_NAMESP(mp, DM_EVENT_NOSPACE, - ip, DM_RIGHT_NULL, - ip, DM_RIGHT_NULL, - NULL, NULL, 0, 0, 0); /* Delay flag intentionally unused */ + if (error == ENOSPC && (attr_flags & XFS_ATTR_DMI) == 0) { + error = xfs_dmapi_send_namesp(ip, DM_RIGHT_NULL, NULL, + DM_EVENT_NOSPACE, + ip, DM_RIGHT_NULL, NULL, + 0, 0, 0); /* Delay flag intentionally unused */ if (error == 0) goto retry; /* Maybe DMAPI app. has made space */ /* else fall through with error from XFS_SEND_DATA */ From aelder@sgi.com Mon Jun 28 17:03:17 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-4.9 required=5.0 tests=BAYES_00,LOCAL_GNU_PATCH autolearn=ham version=3.4.0-r929098 Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5SM3HMe044324 for ; Mon, 28 Jun 2010 17:03:17 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay1.corp.sgi.com (Postfix) with ESMTP id 029CA8F80B7; Mon, 28 Jun 2010 15:06:03 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o5SM62Xc018203; Mon, 28 Jun 2010 17:06:02 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o5SM62Hg018201; Mon, 28 Jun 2010 17:06:02 -0500 From: Alex Elder Message-Id: <201006282206.o5SM62Hg018201@stout.americas.sgi.com> Date: Mon, 28 Jun 2010 17:06:02 -0500 To: xfs@oss.sgi.com Subject: [PATCH 10/15] xfs: kill xfs_dmcore_stub User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Nobody ever dereferences an XFS mount point's m_dm_ops vector pointer any more unless the XFS_MOUNT_DMAPI mount flag is set. So leverage that to just use a null pointer there in that case, and drop the whole xfs_dmcore_stub variable. Change it so that once the m_dm_ops vector has had a chance to be assigned at mount time, a non-null m_vm_ops pointer is always used to indicate DMAPI is active on a file system rather than looking at the mount flag. Also rearrange the logic in xfs_dmops_get() a bit to avoid including much of the code in the case DMAPI isn't supported at build time. Signed-off-by: Alex Elder --- fs/xfs/linux-2.6/xfs_file.c | 6 ++---- fs/xfs/xfs_dmapi.h | 10 +++++----- fs/xfs/xfs_dmops.c | 37 +++++++++++++++++++++---------------- 3 files changed, 28 insertions(+), 25 deletions(-) Index: b/fs/xfs/linux-2.6/xfs_file.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_file.c +++ b/fs/xfs/linux-2.6/xfs_file.c @@ -674,8 +674,7 @@ start: goto out_unlock_mutex; } - if (mp->m_flags & XFS_MOUNT_DMAPI && !(ioflags & IO_INVIS) && - !eventsent) { + if (mp->m_dm_ops && !(ioflags & IO_INVIS) && !eventsent) { int dmflags = FILP_DELAY_FLAG(file); if (need_i_mutex) @@ -830,8 +829,7 @@ write_retry: xfs_iunlock(ip, XFS_ILOCK_EXCL); } - if (ret == -ENOSPC && mp->m_flags & XFS_MOUNT_DMAPI && - !(ioflags & IO_INVIS)) { + if (ret == -ENOSPC && mp->m_dm_ops && !(ioflags & IO_INVIS)) { xfs_iunlock(ip, iolock); if (need_i_mutex) mutex_unlock(&inode->i_mutex); Index: b/fs/xfs/xfs_dmapi.h =================================================================== --- a/fs/xfs/xfs_dmapi.h +++ b/fs/xfs/xfs_dmapi.h @@ -201,7 +201,7 @@ xfs_dmapi_event_enabled(struct xfs_inode #ifdef XFS_DMAPI unsigned int event_mask = 1 << event; - return ip->i_mount->m_flags & XFS_MOUNT_DMAPI && + return ip->i_mount->m_dm_ops && (ip->i_mount->m_dmevmask & event_mask || ip->i_d.di_dmevmask & event_mask); #else /* ! XFS_DMAPI */ @@ -235,7 +235,7 @@ xfs_dmapi_send_mmap( struct inode *inode = vma->vm_file->f_path.dentry->d_inode; struct xfs_mount *mp = XFS_M(inode->i_sb); - if (mp->m_flags & XFS_MOUNT_DMAPI) { + if (mp->m_dm_ops) { xfs_send_mmap_t send_mmap = mp->m_dm_ops->xfs_send_mmap; return send_mmap(vma, vm_flags); @@ -319,7 +319,7 @@ xfs_dmapi_send_mount( struct xfs_mount *mp, char *path) { - if (mp->m_flags & XFS_MOUNT_DMAPI) { + if (mp->m_dm_ops) { xfs_send_mount_t send_mount = mp->m_dm_ops->xfs_send_mount; return send_mount(mp, DM_RIGHT_NULL, path, mp->m_fsname); @@ -333,7 +333,7 @@ static inline void xfs_dmapi_send_preunmount( struct xfs_mount *mp) { - if (mp->m_flags & XFS_MOUNT_DMAPI) + if (mp->m_dm_ops) (void) xfs_dmapi_send_namesp(mp->m_rootip, DM_RIGHT_NULL, NULL, DM_EVENT_PREUNMOUNT, mp->m_rootip, DM_RIGHT_NULL, NULL, @@ -344,7 +344,7 @@ static inline void xfs_dmapi_send_unmount( struct xfs_mount *mp) { - if (mp->m_flags & XFS_MOUNT_DMAPI) { + if (mp->m_dm_ops) { xfs_send_unmount_t send_unmount = mp->m_dm_ops->xfs_send_unmount; Index: b/fs/xfs/xfs_dmops.c =================================================================== --- a/fs/xfs/xfs_dmops.c +++ b/fs/xfs/xfs_dmops.c @@ -28,30 +28,35 @@ #include "xfs_inode.h" #include "xfs_dmapi.h" - -static struct xfs_dmops xfs_dmcore_stub = { - .xfs_send_data = (xfs_send_data_t)fs_nosys, - .xfs_send_mmap = (xfs_send_mmap_t)fs_noerr, - .xfs_send_destroy = (xfs_send_destroy_t)fs_nosys, - .xfs_send_namesp = (xfs_send_namesp_t)fs_nosys, - .xfs_send_mount = (xfs_send_mount_t)fs_nosys, - .xfs_send_unmount = (xfs_send_unmount_t)fs_noerr, -}; - int xfs_dmops_get(struct xfs_mount *mp) { - if (mp->m_flags & XFS_MOUNT_DMAPI) { - cmn_err(CE_WARN, - "XFS: dmapi support not available in this kernel."); - return EINVAL; + ASSERT(!mp->m_dm_ops); + if (!(mp->m_flags & XFS_MOUNT_DMAPI)) + return 0; + +#ifdef XFS_DMAPI + mp->m_dm_ops = symbol_get(xfs_dmcore_xfs); + if (!mp->m_dm_ops) { + request_module("xfs_dmapi"); + mp->m_dm_ops = symbol_get(xfs_dmcore_xfs); } + if (mp->m_dm_ops) + return 0; +#endif /* XFS_DMAPI */ - mp->m_dm_ops = &xfs_dmcore_stub; - return 0; + /* Turn off the flag, since it won't be operative */ + mp->m_flags &= ~XFS_MOUNT_DMAPI; + cmn_err(CE_WARN, "XFS: dmapi support not available in this kernel."); + + return EINVAL; } void xfs_dmops_put(struct xfs_mount *mp) { + if (mp->m_dm_ops) { + symbol_put(xfs_dmcore_xfs); + mp->m_dm_ops = NULL; + } } From aelder@sgi.com Mon Jun 28 17:03:27 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-4.9 required=5.0 tests=BAYES_00,LOCAL_GNU_PATCH autolearn=ham version=3.4.0-r929098 Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5SM3R0X044342 for ; Mon, 28 Jun 2010 17:03:27 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay1.corp.sgi.com (Postfix) with ESMTP id 075448F80B7; Mon, 28 Jun 2010 15:06:13 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o5SM6CrF018214; Mon, 28 Jun 2010 17:06:12 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o5SM6CDs018212; Mon, 28 Jun 2010 17:06:12 -0500 From: Alex Elder Message-Id: <201006282206.o5SM6CDs018212@stout.americas.sgi.com> Date: Mon, 28 Jun 2010 17:06:12 -0500 To: xfs@oss.sgi.com Subject: [PATCH 11/15] xfs: create DMAPI event functions User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Create customized functions that implement making the DMAPI event calls, one for each event type needed. These functions will only take the arguments that are required, and will hide the details of passing various constant values to the "standard" XFS DMAPI interfaces. Also kill off two macros, FILP_DELAY_FLAG() and AT_DELAY_FLAG(), which are only used in a few places and which can easily be expanded in-line. In the read, write, and truncate event cases, arrange for the interface to allow the caller to specify the conditions that would require particular DMAPI flags to be used, rather than specifying the DMAPI flags themselves. Signed-off-by Alex Elder --- fs/xfs/linux-2.6/xfs_file.c | 40 ++---- fs/xfs/linux-2.6/xfs_ioctl.c | 5 fs/xfs/linux-2.6/xfs_super.c | 6 fs/xfs/xfs_bmap.c | 3 fs/xfs/xfs_dmapi.h | 259 +++++++++++++++++++++++++++++++++++++++++-- fs/xfs/xfs_rename.c | 12 - fs/xfs/xfs_vnodeops.c | 76 +++--------- 7 files changed, 296 insertions(+), 105 deletions(-) Index: b/fs/xfs/linux-2.6/xfs_file.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_file.c +++ b/fs/xfs/linux-2.6/xfs_file.c @@ -276,12 +276,9 @@ xfs_file_aio_read( xfs_ilock(ip, XFS_IOLOCK_SHARED); if (!(ioflags & IO_INVIS)) { - int dmflags = FILP_DELAY_FLAG(file); - - if (ioflags & IO_ISDIRECT) - dmflags |= DM_FLAGS_IMUX; - ret = -xfs_dmapi_send_data(ip, DM_EVENT_READ, iocb->ki_pos, - size, dmflags, XFS_IOLOCK_SHARED); + ret = -xfs_dmapi_event_read(ip, iocb->ki_pos, size, + file->f_flags & (O_NDELAY|O_NONBLOCK), + ioflags & IO_ISDIRECT, XFS_IOLOCK_SHARED); if (ret) { xfs_iunlock(ip, XFS_IOLOCK_SHARED); if (unlikely(ioflags & IO_ISDIRECT)) @@ -322,7 +319,6 @@ xfs_file_splice_read( unsigned int flags) { struct xfs_inode *ip = XFS_I(infilp->f_mapping->host); - struct xfs_mount *mp = ip->i_mount; int ioflags = 0; ssize_t ret; @@ -339,9 +335,9 @@ xfs_file_splice_read( if (!(ioflags & IO_INVIS)) { int error; - error = xfs_dmapi_send_data(ip, DM_EVENT_READ, *ppos, - count, FILP_DELAY_FLAG(infilp), - XFS_IOLOCK_SHARED); + error = xfs_dmapi_event_read(ip, *ppos, count, + infilp->f_flags & (O_NDELAY|O_NONBLOCK), + 0, XFS_IOLOCK_SHARED); if (error) { xfs_iunlock(ip, XFS_IOLOCK_SHARED); return -error; @@ -368,7 +364,6 @@ xfs_file_splice_write( { struct inode *inode = outfilp->f_mapping->host; struct xfs_inode *ip = XFS_I(inode); - struct xfs_mount *mp = ip->i_mount; xfs_fsize_t isize, new_size; int ioflags = 0; ssize_t ret; @@ -386,9 +381,9 @@ xfs_file_splice_write( if (!(ioflags & IO_INVIS)) { int error; - error = xfs_dmapi_send_data(ip, DM_EVENT_WRITE, *ppos, count, - FILP_DELAY_FLAG(outfilp), - XFS_IOLOCK_EXCL); + error = xfs_dmapi_event_write(ip, *ppos, count, + outfilp->f_flags & (O_NDELAY|O_NONBLOCK), + 0, XFS_IOLOCK_EXCL); if (error) { xfs_iunlock(ip, XFS_IOLOCK_EXCL); return -error; @@ -675,14 +670,10 @@ start: } if (mp->m_dm_ops && !(ioflags & IO_INVIS) && !eventsent) { - int dmflags = FILP_DELAY_FLAG(file); - - if (need_i_mutex) - dmflags |= DM_FLAGS_IMUX; - xfs_iunlock(ip, XFS_ILOCK_EXCL); - error = xfs_dmapi_send_data(ip, DM_EVENT_WRITE, - pos, count, dmflags, iolock); + error = xfs_dmapi_event_write(ip, pos, count, + file->f_flags & (O_NDELAY|O_NONBLOCK), + need_i_mutex, iolock); if (error) goto out_unlock_internal; eventsent = 1; @@ -833,10 +824,9 @@ write_retry: xfs_iunlock(ip, iolock); if (need_i_mutex) mutex_unlock(&inode->i_mutex); - error = xfs_dmapi_send_namesp(xip, DM_RIGHT_NULL, NULL, - DM_EVENT_NOSPACE, - xip, DM_RIGHT_NULL, NULL, - 0, 0, 0); /* Delay flag intentionally unused */ + + error = xfs_dmapi_event_nospace(xip); + if (need_i_mutex) mutex_lock(&inode->i_mutex); xfs_ilock(ip, iolock); Index: b/fs/xfs/linux-2.6/xfs_ioctl.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_ioctl.c +++ b/fs/xfs/linux-2.6/xfs_ioctl.c @@ -1120,10 +1120,7 @@ xfs_ioctl_setattr( if (code) return code; - (void) xfs_dmapi_send_namesp(ip, DM_RIGHT_NULL, NULL, - DM_EVENT_ATTRIBUTE, - NULL, DM_RIGHT_NULL, NULL, - 0, 0, (mask & FSX_NONBLOCK) ? DM_FLAGS_NDELAY : 0); + xfs_dmapi_event_attribute(ip, mask & FSX_NONBLOCK); return 0; Index: b/fs/xfs/linux-2.6/xfs_super.c =================================================================== --- a/fs/xfs/linux-2.6/xfs_super.c +++ b/fs/xfs/linux-2.6/xfs_super.c @@ -1206,7 +1206,7 @@ xfs_fs_put_super( xfs_sync_attr(mp, 0); } - xfs_dmapi_send_preunmount(mp); + xfs_dmapi_event_preunmount(mp); /* * Blow away any referenced inode in the filestreams cache. @@ -1217,7 +1217,7 @@ xfs_fs_put_super( XFS_bflush(mp->m_ddev_targp); - xfs_dmapi_send_unmount(mp); + xfs_dmapi_event_unmount(mp); xfs_unmountfs(mp); xfs_freesb(mp); @@ -1612,7 +1612,7 @@ xfs_fs_fill_super( * others. If that happens, we should probably disable * DMAPI on the file system or something. */ - (void) xfs_dmapi_send_mount(mp, mtpt); + (void) xfs_dmapi_event_mount(mp, mtpt); sb->s_magic = XFS_SB_MAGIC; sb->s_blocksize = mp->m_sb.sb_blocksize; Index: b/fs/xfs/xfs_bmap.c =================================================================== --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -5620,8 +5620,7 @@ xfs_getbmap( * when in fact they may represent offline user data. */ if (!(iflags & BMV_IF_NO_DMAPI_READ)) { - error = xfs_dmapi_send_data(ip, DM_EVENT_READ, - 0, 0, 0, 0); + error = xfs_dmapi_event_read_simple(ip); if (error) return XFS_ERROR(error); } Index: b/fs/xfs/xfs_dmapi.h =================================================================== --- a/fs/xfs/xfs_dmapi.h +++ b/fs/xfs/xfs_dmapi.h @@ -148,15 +148,6 @@ typedef enum { #define DM_FLAGS_IALLOCSEM_WR 0x020 /* thread holds i_alloc_sem wr */ /* - * Macros to turn caller specified delay/block flags into - * dm_send_xxxx_event flag DM_FLAGS_NDELAY. - */ - -#define FILP_DELAY_FLAG(filp) ((filp->f_flags&(O_NDELAY|O_NONBLOCK)) ? \ - DM_FLAGS_NDELAY : 0) -#define AT_DELAY_FLAG(f) ((f & XFS_ATTR_NONBLOCK) ? DM_FLAGS_NDELAY : 0) - -/* * Prototypes and functions for the Data Migration subsystem. */ @@ -353,4 +344,254 @@ xfs_dmapi_send_unmount( } } +/* Customized event functions, based on the DMAPI interfaces */ + +/* Mount point events */ + +static inline int +xfs_dmapi_event_mount( + struct xfs_mount *mp, + char *path) +{ + return xfs_dmapi_send_mount(mp, path); +} + +static inline void +xfs_dmapi_event_preunmount( + struct xfs_mount *mp) +{ + xfs_dmapi_send_preunmount(mp); +} + +static inline void +xfs_dmapi_event_unmount( + struct xfs_mount *mp) +{ + xfs_dmapi_send_unmount(mp); +} + +/* Inode events */ + +static inline int +xfs_dmapi_event_create( + struct xfs_inode *dip, + const char *name, + mode_t mode) +{ + return xfs_dmapi_send_namesp(dip, DM_RIGHT_NULL, name, + DM_EVENT_CREATE, + NULL, DM_RIGHT_NULL, NULL, + mode, 0, 0); +} + +static inline void +xfs_dmapi_event_postcreate( + struct xfs_inode *dip, + struct xfs_inode *ip, + const char *name, + mode_t mode, + int retcode) +{ + (void) xfs_dmapi_send_namesp(dip, DM_RIGHT_NULL, name, + DM_EVENT_POSTCREATE, + ip, DM_RIGHT_NULL, NULL, + mode, retcode, 0); +} + +static inline int +xfs_dmapi_event_remove( + struct xfs_inode *dip, + const char *name, + mode_t mode) +{ + return xfs_dmapi_send_namesp(dip, DM_RIGHT_NULL, name, + DM_EVENT_REMOVE, + NULL, DM_RIGHT_NULL, NULL, + mode, 0, 0); +} + +static inline void +xfs_dmapi_event_postremove( + struct xfs_inode *dip, + const char *name, + mode_t mode, + int retcode) +{ + (void) xfs_dmapi_send_namesp(dip, DM_RIGHT_NULL, name, + DM_EVENT_POSTREMOVE, + NULL, DM_RIGHT_NULL, NULL, + mode, retcode, 0); +} + +static inline int +xfs_dmapi_event_rename( + struct xfs_inode *src_dip, + const char *src_name, + struct xfs_inode *tgt_dip, + const char *tgt_name) +{ + return xfs_dmapi_send_namesp(src_dip, DM_RIGHT_NULL, src_name, + DM_EVENT_RENAME, + tgt_dip, DM_RIGHT_NULL, tgt_name, + 0, 0, 0); +} + +static inline void +xfs_dmapi_event_postrename( + struct xfs_inode *src_dip, + const char *src_name, + struct xfs_inode *tgt_dip, + const char *tgt_name, + int retcode) +{ + (void) xfs_dmapi_send_namesp(src_dip, DM_RIGHT_NULL, src_name, + DM_EVENT_POSTRENAME, + tgt_dip, DM_RIGHT_NULL, tgt_name, + 0, retcode, 0); +} + +static inline int +xfs_dmapi_event_link( + struct xfs_inode *src_ip, + struct xfs_inode *tgt_dip, + const char *tgt_name) +{ + return xfs_dmapi_send_namesp(tgt_dip, DM_RIGHT_NULL, tgt_name, + DM_EVENT_LINK, + src_ip, DM_RIGHT_NULL, NULL, + 0, 0, 0); +} + +static inline void +xfs_dmapi_event_postlink( + struct xfs_inode *src_ip, + struct xfs_inode *tgt_dip, + const char *tgt_name, + int retcode) +{ + (void) xfs_dmapi_send_namesp(tgt_dip, DM_RIGHT_NULL, tgt_name, + DM_EVENT_POSTLINK, + src_ip, DM_RIGHT_NULL, NULL, + 0, retcode, 0); +} + +static inline int +xfs_dmapi_event_symlink( + const char *path, /* pointed-to path */ + struct xfs_inode *tgt_dip, + const char *tgt_name) +{ + return xfs_dmapi_send_namesp(tgt_dip, DM_RIGHT_NULL, tgt_name, + DM_EVENT_SYMLINK, + NULL, DM_RIGHT_NULL, path, + 0, 0, 0); +} + +static inline void +xfs_dmapi_event_postsymlink( + const char *path, /* pointed-to path */ + struct xfs_inode *tgt_dip, + struct xfs_inode *tgt_ip, /* ignored if retcode != 0 */ + const char *tgt_name, + int retcode) +{ + (void) xfs_dmapi_send_namesp(tgt_dip, DM_RIGHT_NULL, tgt_name, + DM_EVENT_POSTSYMLINK, + retcode ? NULL : tgt_ip, DM_RIGHT_NULL, path, + 0, retcode, 0); +} + +static inline int +xfs_dmapi_event_mmap( + struct vm_area_struct *vma, + unsigned long vm_flags) +{ + return xfs_dmapi_send_mmap(vma, vm_flags); +} + +static inline int +xfs_dmapi_event_read( + struct xfs_inode *ip, + xfs_off_t offset, + size_t length, + int non_blocking, + int direct_io, + int lock_flags) +{ + int dmflags = non_blocking ? DM_FLAGS_NDELAY : 0; + + if (direct_io) + dmflags |= DM_FLAGS_IMUX; + + return xfs_dmapi_send_data(ip, DM_EVENT_READ, offset, + length, dmflags, lock_flags); +} + +static inline int +xfs_dmapi_event_read_simple( + struct xfs_inode *ip) +{ + return xfs_dmapi_event_read(ip, 0, 0, 0, 0, 0); +} + +static inline int +xfs_dmapi_event_write( + struct xfs_inode *ip, + xfs_off_t offset, + size_t length, + int non_blocking, + int direct_io, + int lock_flags) +{ + int dmflags = non_blocking ? DM_FLAGS_NDELAY : 0; + + if (direct_io) + dmflags |= DM_FLAGS_IMUX; + + return xfs_dmapi_send_data(ip, DM_EVENT_WRITE, offset, + length, dmflags, lock_flags); +} + +static inline int +xfs_dmapi_event_truncate( + struct xfs_inode *ip, + xfs_off_t size, + int non_blocking) +{ + int dmflags = DM_FLAGS_IALLOCSEM_WR|DM_FLAGS_IMUX; + + if (non_blocking) + dmflags |= DM_FLAGS_NDELAY; + + return xfs_dmapi_send_data(ip, DM_EVENT_TRUNCATE, size, 0, dmflags, 0); +} + +static inline void +xfs_dmapi_event_attribute( + struct xfs_inode *ip, + int delay) +{ + (void) xfs_dmapi_send_namesp(ip, DM_RIGHT_NULL, NULL, + DM_EVENT_ATTRIBUTE, + NULL, DM_RIGHT_NULL, NULL, + 0, 0, delay ? DM_FLAGS_NDELAY : 0); +} + +static inline void +xfs_dmapi_event_destroy( + struct xfs_inode *ip) +{ + (void) xfs_dmapi_send_destroy(ip, DM_RIGHT_NULL); +} + +static inline int +xfs_dmapi_event_nospace( + struct xfs_inode *ip) +{ + return xfs_dmapi_send_namesp(ip, DM_RIGHT_NULL, NULL, + DM_EVENT_NOSPACE, + ip, DM_RIGHT_NULL, NULL, + 0, 0, 0); /* Delay flag intentionally unused */ +} + #endif /* __XFS_DMAPI_H__ */ Index: b/fs/xfs/xfs_rename.c =================================================================== --- a/fs/xfs/xfs_rename.c +++ b/fs/xfs/xfs_rename.c @@ -119,10 +119,8 @@ xfs_rename( xfs_itrace_entry(src_dp); xfs_itrace_entry(target_dp); - error = xfs_dmapi_send_namesp(src_dp, DM_RIGHT_NULL, src_name->name, - DM_EVENT_RENAME, - target_dp, DM_RIGHT_NULL, target_name->name, - 0, 0, 0); + error = xfs_dmapi_event_rename(src_dp, src_name->name, + target_dp, target_name->name); if (error) return error; @@ -371,10 +369,8 @@ xfs_rename( /* Fall through to std_return with error = 0 or errno from * xfs_trans_commit */ std_return: - (void) xfs_dmapi_send_namesp(src_dp, DM_RIGHT_NULL, src_name->name, - DM_EVENT_POSTRENAME, - target_dp, DM_RIGHT_NULL, target_name->name, - 0, error, 0); + xfs_dmapi_event_postrename(src_dp, src_name->name, + target_dp, target_name->name, error); return error; abort_return: Index: b/fs/xfs/xfs_vnodeops.c =================================================================== --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -144,11 +144,8 @@ xfs_setattr( } } else { if (!(flags & XFS_ATTR_DMI)) { - int dmflags = AT_DELAY_FLAG(flags); - - dmflags |= DM_FLAGS_IALLOCSEM_WR|DM_FLAGS_IMUX; - code = xfs_dmapi_send_data(ip, DM_EVENT_TRUNCATE, - iattr->ia_size, 0, dmflags, 0); + code = xfs_dmapi_event_truncate(ip, iattr->ia_size, + flags & XFS_ATTR_NONBLOCK); if (code) { lock_flags = 0; goto error_return; @@ -471,12 +468,8 @@ xfs_setattr( return XFS_ERROR(code); } - if (!(flags & XFS_ATTR_DMI)) { - (void) xfs_dmapi_send_namesp(ip, DM_RIGHT_NULL, NULL, - DM_EVENT_ATTRIBUTE, - NULL, DM_RIGHT_NULL, NULL, - 0, 0, AT_DELAY_FLAG(flags)); - } + if (!(flags & XFS_ATTR_DMI)) + xfs_dmapi_event_attribute(ip, flags & XFS_ATTR_NONBLOCK); return 0; abort_return: @@ -1062,7 +1055,7 @@ xfs_inactive( mp = ip->i_mount; if (ip->i_d.di_nlink == 0) - (void) xfs_dmapi_send_destroy(ip, DM_RIGHT_NULL); + xfs_dmapi_event_destroy(ip); error = 0; @@ -1315,10 +1308,7 @@ xfs_create( if (XFS_FORCED_SHUTDOWN(mp)) return XFS_ERROR(EIO); - error = xfs_dmapi_send_namesp(dp, DM_RIGHT_NULL, name->name, - DM_EVENT_CREATE, - NULL, DM_RIGHT_NULL, NULL, - mode, 0, 0); + error = xfs_dmapi_event_create(dp, name->name, mode); if (error) return error; @@ -1488,10 +1478,7 @@ xfs_create( /* Fallthrough to std_return with error = 0 */ std_return: - (void) xfs_dmapi_send_namesp(dp, DM_RIGHT_NULL, name->name, - DM_EVENT_POSTCREATE, - ip, DM_RIGHT_NULL, NULL, - mode, error, 0); + xfs_dmapi_event_postcreate(dp, ip, name->name, mode, error); return error; @@ -1729,10 +1716,7 @@ xfs_remove( if (XFS_FORCED_SHUTDOWN(mp)) return XFS_ERROR(EIO); - error = xfs_dmapi_send_namesp(dp, DM_RIGHT_NULL, name->name, - DM_EVENT_REMOVE, - NULL, DM_RIGHT_NULL, NULL, - ip->i_d.di_mode, 0, 0); + error = xfs_dmapi_event_remove(dp, name->name, ip->i_d.di_mode); if (error) return error; @@ -1874,10 +1858,7 @@ xfs_remove( xfs_filestream_deassociate(ip); std_return: - (void) xfs_dmapi_send_namesp(dp, DM_RIGHT_NULL, name->name, - DM_EVENT_POSTREMOVE, - NULL, DM_RIGHT_NULL, NULL, - ip->i_d.di_mode, error, 0); + xfs_dmapi_event_postremove(dp, name->name, ip->i_d.di_mode, error); return error; @@ -1912,10 +1893,7 @@ xfs_link( if (XFS_FORCED_SHUTDOWN(mp)) return XFS_ERROR(EIO); - error = xfs_dmapi_send_namesp(tdp, DM_RIGHT_NULL, target_name->name, - DM_EVENT_LINK, - sip, DM_RIGHT_NULL, NULL, - 0, 0, 0); + error = xfs_dmapi_event_link(sip, tdp, target_name->name); if (error) return error; @@ -2013,10 +1991,7 @@ xfs_link( /* Fall through to std_return with error = 0. */ std_return: - (void) xfs_dmapi_send_namesp(tdp, DM_RIGHT_NULL, target_name->name, - DM_EVENT_POSTLINK, - sip, DM_RIGHT_NULL, NULL, - 0, error, 0); + xfs_dmapi_event_postlink(sip, tdp, target_name->name, error); return error; @@ -2078,10 +2053,8 @@ xfs_symlink( if (pathlen >= MAXPATHLEN) /* total string too long */ return XFS_ERROR(ENAMETOOLONG); - error = xfs_dmapi_send_namesp(dp, DM_RIGHT_NULL, link_name->name, - DM_EVENT_SYMLINK, - NULL, DM_RIGHT_NULL, - (unsigned char *)target_path, 0, 0, 0); + error = xfs_dmapi_event_symlink((unsigned char *) target_path, dp, + link_name->name); if (error) return error; @@ -2271,10 +2244,8 @@ xfs_symlink( /* Fall through to std_return with error = 0 or errno from * xfs_trans_commit */ std_return: - (void) xfs_dmapi_send_namesp(dp, DM_RIGHT_NULL, link_name->name, - DM_EVENT_POSTSYMLINK, - error ? NULL : ip, DM_RIGHT_NULL, - (unsigned char *) target_path, 0, error, 0); + xfs_dmapi_event_postsymlink((unsignec char *) target_path, dp, ip, + link_name->name, error); if (!error) *ipp = ip; @@ -2406,8 +2377,8 @@ xfs_alloc_file_space( end_dmi_offset = offset+len; if (end_dmi_offset > ip->i_size) end_dmi_offset = ip->i_size; - error = xfs_dmapi_send_data(ip, DM_EVENT_WRITE, offset, - end_dmi_offset - offset, 0, 0); + error = xfs_dmapi_event_write(ip, offset, + end_dmi_offset - offset, 0, 0, 0); if (error) return error; } @@ -2514,11 +2485,8 @@ retry: } dmapi_enospc_check: if (error == ENOSPC && (attr_flags & XFS_ATTR_DMI) == 0) { - error = xfs_dmapi_send_namesp(ip, DM_RIGHT_NULL, NULL, - DM_EVENT_NOSPACE, - ip, DM_RIGHT_NULL, NULL, - 0, 0, 0); /* Delay flag intentionally unused */ - if (error == 0) + error = xfs_dmapi_event_nospace(ip); + if (! error) goto retry; /* Maybe DMAPI app. has made space */ /* else fall through with error from XFS_SEND_DATA */ } @@ -2681,9 +2649,9 @@ xfs_free_file_space( if (offset < ip->i_size && (attr_flags & XFS_ATTR_DMI) == 0) { if (end_dmi_offset > ip->i_size) end_dmi_offset = ip->i_size; - error = xfs_dmapi_send_data(ip, DM_EVENT_WRITE, - offset, end_dmi_offset - offset, - AT_DELAY_FLAG(attr_flags), 0); + error = xfs_dmapi_event_write(ip, offset, + end_dmi_offset - offset, + attr_flags & XFS_ATTR_NONBLOCK, 0, 0); if (error) return error; } From aelder@sgi.com Mon Jun 28 17:03:37 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5SM3bop044363 for ; Mon, 28 Jun 2010 17:03:37 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay2.corp.sgi.com (Postfix) with ESMTP id 0863F3040A4; Mon, 28 Jun 2010 15:06:23 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o5SM6Mrk018222; Mon, 28 Jun 2010 17:06:22 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o5SM6M4v018220; Mon, 28 Jun 2010 17:06:22 -0500 From: Alex Elder Message-Id: <201006282206.o5SM6M4v018220@stout.americas.sgi.com> Date: Mon, 28 Jun 2010 17:06:22 -0500 To: xfs@oss.sgi.com Subject: [PATCH 12/15] xfs: make DMAPI functions non-inline User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Now that all of the DMAPI event generation code has been converted to proper functions, move them out of the header file and make them non-inline. One exception is xfs_dmapi_event_enabled(), which would have to be added to the set of exported symbols otherwise. Signed-off-by: Alex Elder --- fs/xfs/xfs_dmapi.h | 460 +++++++---------------------------------------------- fs/xfs/xfs_dmops.c | 408 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 472 insertions(+), 396 deletions(-) Index: b/fs/xfs/xfs_dmapi.h =================================================================== --- a/fs/xfs/xfs_dmapi.h +++ b/fs/xfs/xfs_dmapi.h @@ -151,9 +151,6 @@ typedef enum { * Prototypes and functions for the Data Migration subsystem. */ -extern int xfs_dmops_get(struct xfs_mount *); -extern void xfs_dmops_put(struct xfs_mount *); - extern struct xfs_dmops xfs_dmcore_xfs; typedef int (*xfs_send_data_t)(int, struct xfs_inode *, @@ -178,8 +175,10 @@ typedef struct xfs_dmops { xfs_send_unmount_t xfs_send_unmount; } xfs_dmops_t; -#define XFS_DMAPI_UNMOUNT_FLAGS(mp) \ - (((mp)->m_dmevmask & (1 << DM_EVENT_UNMOUNT)) ? 0 : DM_FLAGS_UNWANTED) +extern int xfs_dmops_get(struct xfs_mount *); +extern void xfs_dmops_put(struct xfs_mount *); + +#ifdef XFS_DMAPI /* * DMAPI events only apply if DMAPI support was specified at mount @@ -189,409 +188,78 @@ typedef struct xfs_dmops { static inline int xfs_dmapi_event_enabled(struct xfs_inode *ip, dm_eventtype_t event) { -#ifdef XFS_DMAPI unsigned int event_mask = 1 << event; return ip->i_mount->m_dm_ops && (ip->i_mount->m_dmevmask & event_mask || ip->i_d.di_dmevmask & event_mask); -#else /* ! XFS_DMAPI */ - return 0; -#endif /* ! XFS_DMAPI */ -} - -static inline int -xfs_dmapi_send_data( - struct xfs_inode *ip, - dm_eventtype_t event, - xfs_off_t offset, - size_t length, - int flags, - int lock_flags) -{ - xfs_send_data_t send_data; - - if (! xfs_dmapi_event_enabled(ip, event)) - return 0; - send_data = ip->i_mount->m_dm_ops->xfs_send_data; - - return send_data(event, ip, offset, length, flags, lock_flags); -} - -static inline int -xfs_dmapi_send_mmap( - struct vm_area_struct *vma, - unsigned long vm_flags) -{ - struct inode *inode = vma->vm_file->f_path.dentry->d_inode; - struct xfs_mount *mp = XFS_M(inode->i_sb); - - if (mp->m_dm_ops) { - xfs_send_mmap_t send_mmap = mp->m_dm_ops->xfs_send_mmap; - - return send_mmap(vma, vm_flags); - } - ASSERT_ALWAYS(vm_flags == VM_WRITE); - - return 0; -} - -static inline int -xfs_dmapi_send_destroy( - struct xfs_inode *ip, - dm_right_t right) -{ - xfs_send_destroy_t send_destroy; - - if (!xfs_dmapi_event_enabled(ip, DM_EVENT_DESTROY)) - return 0; - send_destroy = ip->i_mount->m_dm_ops->xfs_send_destroy; - - return send_destroy(ip, right); -} - -static inline int -xfs_dmapi_send_namesp( - struct xfs_inode *ip1, - dm_right_t right1, - const char *name1, - dm_eventtype_t event, - struct xfs_inode *ip2, - dm_right_t right2, - const char *name2, - mode_t mode, - int ret, - int flags) -{ - int enabled; - xfs_send_namesp_t send_namesp; - - ASSERT(ip1 != NULL); - if (ip2 && ip1->i_mount != ip2->i_mount) - return -EINVAL; - - switch (event) { - case DM_EVENT_PREUNMOUNT: /* xfs_dmapi_send_preunmount() */ - enabled = 1; - break; - case DM_EVENT_CREATE: - case DM_EVENT_POSTCREATE: - case DM_EVENT_REMOVE: - case DM_EVENT_POSTREMOVE: - case DM_EVENT_LINK: - case DM_EVENT_POSTLINK: - case DM_EVENT_SYMLINK: - case DM_EVENT_POSTSYMLINK: - case DM_EVENT_ATTRIBUTE: - case DM_EVENT_NOSPACE: - enabled = xfs_dmapi_event_enabled(ip1, event); - break; - case DM_EVENT_RENAME: - case DM_EVENT_POSTRENAME: - enabled = xfs_dmapi_event_enabled(ip1, event) || - xfs_dmapi_event_enabled(ip2, event); - break; - default: - ASSERT(0); - enabled = 0; - break; - } - if (!enabled) - return 0; - - send_namesp = ip1->i_mount->m_dm_ops->xfs_send_namesp; - - return send_namesp(event, NULL, ip1, right1, ip2, right2, - name1, name2, mode, ret, flags); -} - -static inline int -xfs_dmapi_send_mount( - struct xfs_mount *mp, - char *path) -{ - if (mp->m_dm_ops) { - xfs_send_mount_t send_mount = mp->m_dm_ops->xfs_send_mount; - - return send_mount(mp, DM_RIGHT_NULL, path, mp->m_fsname); - } - - return ENOSYS; -} - - -static inline void -xfs_dmapi_send_preunmount( - struct xfs_mount *mp) -{ - if (mp->m_dm_ops) - (void) xfs_dmapi_send_namesp(mp->m_rootip, DM_RIGHT_NULL, NULL, - DM_EVENT_PREUNMOUNT, - mp->m_rootip, DM_RIGHT_NULL, NULL, - 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); -} - -static inline void -xfs_dmapi_send_unmount( - struct xfs_mount *mp) -{ - if (mp->m_dm_ops) { - xfs_send_unmount_t send_unmount = - mp->m_dm_ops->xfs_send_unmount; - - send_unmount(mp, mp->m_rootip, DM_RIGHT_NULL, - 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); - } } /* Customized event functions, based on the DMAPI interfaces */ -/* Mount point events */ - -static inline int -xfs_dmapi_event_mount( - struct xfs_mount *mp, - char *path) -{ - return xfs_dmapi_send_mount(mp, path); -} - -static inline void -xfs_dmapi_event_preunmount( - struct xfs_mount *mp) -{ - xfs_dmapi_send_preunmount(mp); -} - -static inline void -xfs_dmapi_event_unmount( - struct xfs_mount *mp) -{ - xfs_dmapi_send_unmount(mp); -} - -/* Inode events */ - -static inline int -xfs_dmapi_event_create( - struct xfs_inode *dip, - const char *name, - mode_t mode) -{ - return xfs_dmapi_send_namesp(dip, DM_RIGHT_NULL, name, - DM_EVENT_CREATE, - NULL, DM_RIGHT_NULL, NULL, - mode, 0, 0); -} - -static inline void -xfs_dmapi_event_postcreate( - struct xfs_inode *dip, - struct xfs_inode *ip, - const char *name, - mode_t mode, - int retcode) -{ - (void) xfs_dmapi_send_namesp(dip, DM_RIGHT_NULL, name, - DM_EVENT_POSTCREATE, - ip, DM_RIGHT_NULL, NULL, - mode, retcode, 0); -} - -static inline int -xfs_dmapi_event_remove( - struct xfs_inode *dip, - const char *name, - mode_t mode) -{ - return xfs_dmapi_send_namesp(dip, DM_RIGHT_NULL, name, - DM_EVENT_REMOVE, - NULL, DM_RIGHT_NULL, NULL, - mode, 0, 0); -} - -static inline void -xfs_dmapi_event_postremove( - struct xfs_inode *dip, - const char *name, - mode_t mode, - int retcode) -{ - (void) xfs_dmapi_send_namesp(dip, DM_RIGHT_NULL, name, - DM_EVENT_POSTREMOVE, - NULL, DM_RIGHT_NULL, NULL, - mode, retcode, 0); -} +extern int xfs_dmapi_event_mount(struct xfs_mount *, char *); +extern void xfs_dmapi_event_preunmount(struct xfs_mount *); +extern void xfs_dmapi_event_unmount(struct xfs_mount *); + +extern int xfs_dmapi_event_create(struct xfs_inode *, const char *, + mode_t mode); +extern void xfs_dmapi_event_postcreate(struct xfs_inode *, + struct xfs_inode *, const char *, mode_t, int); +extern int xfs_dmapi_event_remove(struct xfs_inode *, const char *, + mode_t); +extern void xfs_dmapi_event_postremove(struct xfs_inode *, + const char *, mode_t, int); +extern int xfs_dmapi_event_rename(struct xfs_inode *, const char *, + struct xfs_inode *, const char *); +extern void xfs_dmapi_event_postrename(struct xfs_inode *, const + char *, struct xfs_inode *, const char *, int); +extern int xfs_dmapi_event_link(struct xfs_inode *, struct xfs_inode *, + const char *); +extern void xfs_dmapi_event_postlink(struct xfs_inode *, struct xfs_inode *, + const char *, int); +extern int xfs_dmapi_event_symlink(const char *, struct xfs_inode *, + const char *); +extern void xfs_dmapi_event_postsymlink(const char *, struct xfs_inode *, + struct xfs_inode *, const char *, int); +extern int xfs_dmapi_event_mmap(struct vm_area_struct *, unsigned long); +extern int xfs_dmapi_event_read(struct xfs_inode *, xfs_off_t, size_t, + int, int, int); +extern int xfs_dmapi_event_read_simple(struct xfs_inode *); +extern int xfs_dmapi_event_write(struct xfs_inode *, xfs_off_t, size_t, + int, int, int); +extern int xfs_dmapi_event_truncate(struct xfs_inode *, xfs_off_t, int); +extern void xfs_dmapi_event_attribute(struct xfs_inode *, int); +extern void xfs_dmapi_event_destroy(struct xfs_inode *); +extern int xfs_dmapi_event_nospace(struct xfs_inode *); -static inline int -xfs_dmapi_event_rename( - struct xfs_inode *src_dip, - const char *src_name, - struct xfs_inode *tgt_dip, - const char *tgt_name) -{ - return xfs_dmapi_send_namesp(src_dip, DM_RIGHT_NULL, src_name, - DM_EVENT_RENAME, - tgt_dip, DM_RIGHT_NULL, tgt_name, - 0, 0, 0); -} - -static inline void -xfs_dmapi_event_postrename( - struct xfs_inode *src_dip, - const char *src_name, - struct xfs_inode *tgt_dip, - const char *tgt_name, - int retcode) -{ - (void) xfs_dmapi_send_namesp(src_dip, DM_RIGHT_NULL, src_name, - DM_EVENT_POSTRENAME, - tgt_dip, DM_RIGHT_NULL, tgt_name, - 0, retcode, 0); -} - -static inline int -xfs_dmapi_event_link( - struct xfs_inode *src_ip, - struct xfs_inode *tgt_dip, - const char *tgt_name) -{ - return xfs_dmapi_send_namesp(tgt_dip, DM_RIGHT_NULL, tgt_name, - DM_EVENT_LINK, - src_ip, DM_RIGHT_NULL, NULL, - 0, 0, 0); -} - -static inline void -xfs_dmapi_event_postlink( - struct xfs_inode *src_ip, - struct xfs_inode *tgt_dip, - const char *tgt_name, - int retcode) -{ - (void) xfs_dmapi_send_namesp(tgt_dip, DM_RIGHT_NULL, tgt_name, - DM_EVENT_POSTLINK, - src_ip, DM_RIGHT_NULL, NULL, - 0, retcode, 0); -} - -static inline int -xfs_dmapi_event_symlink( - const char *path, /* pointed-to path */ - struct xfs_inode *tgt_dip, - const char *tgt_name) -{ - return xfs_dmapi_send_namesp(tgt_dip, DM_RIGHT_NULL, tgt_name, - DM_EVENT_SYMLINK, - NULL, DM_RIGHT_NULL, path, - 0, 0, 0); -} - -static inline void -xfs_dmapi_event_postsymlink( - const char *path, /* pointed-to path */ - struct xfs_inode *tgt_dip, - struct xfs_inode *tgt_ip, /* ignored if retcode != 0 */ - const char *tgt_name, - int retcode) -{ - (void) xfs_dmapi_send_namesp(tgt_dip, DM_RIGHT_NULL, tgt_name, - DM_EVENT_POSTSYMLINK, - retcode ? NULL : tgt_ip, DM_RIGHT_NULL, path, - 0, retcode, 0); -} - -static inline int -xfs_dmapi_event_mmap( - struct vm_area_struct *vma, - unsigned long vm_flags) -{ - return xfs_dmapi_send_mmap(vma, vm_flags); -} - -static inline int -xfs_dmapi_event_read( - struct xfs_inode *ip, - xfs_off_t offset, - size_t length, - int non_blocking, - int direct_io, - int lock_flags) -{ - int dmflags = non_blocking ? DM_FLAGS_NDELAY : 0; - - if (direct_io) - dmflags |= DM_FLAGS_IMUX; - - return xfs_dmapi_send_data(ip, DM_EVENT_READ, offset, - length, dmflags, lock_flags); -} - -static inline int -xfs_dmapi_event_read_simple( - struct xfs_inode *ip) -{ - return xfs_dmapi_event_read(ip, 0, 0, 0, 0, 0); -} - -static inline int -xfs_dmapi_event_write( - struct xfs_inode *ip, - xfs_off_t offset, - size_t length, - int non_blocking, - int direct_io, - int lock_flags) -{ - int dmflags = non_blocking ? DM_FLAGS_NDELAY : 0; - - if (direct_io) - dmflags |= DM_FLAGS_IMUX; - - return xfs_dmapi_send_data(ip, DM_EVENT_WRITE, offset, - length, dmflags, lock_flags); -} - -static inline int -xfs_dmapi_event_truncate( - struct xfs_inode *ip, - xfs_off_t size, - int non_blocking) -{ - int dmflags = DM_FLAGS_IALLOCSEM_WR|DM_FLAGS_IMUX; - - if (non_blocking) - dmflags |= DM_FLAGS_NDELAY; - - return xfs_dmapi_send_data(ip, DM_EVENT_TRUNCATE, size, 0, dmflags, 0); -} +#else /* ! XFS_DMAPI */ -static inline void -xfs_dmapi_event_attribute( - struct xfs_inode *ip, - int delay) -{ - (void) xfs_dmapi_send_namesp(ip, DM_RIGHT_NULL, NULL, - DM_EVENT_ATTRIBUTE, - NULL, DM_RIGHT_NULL, NULL, - 0, 0, delay ? DM_FLAGS_NDELAY : 0); -} +#define xfs_dmapi_event_enabled(i, e) 0 -static inline void -xfs_dmapi_event_destroy( - struct xfs_inode *ip) -{ - (void) xfs_dmapi_send_destroy(ip, DM_RIGHT_NULL); -} +#define xfs_dmapi_event_mount(mp, path) 0 +#define xfs_dmapi_event_preunmount(mp) (void) 0 +#define xfs_dmapi_event_unmount(mp) (void) 0 + +#define xfs_dmapi_event_create(i, n, mode) 0 +#define xfs_dmapi_event_postcreate(dip, ip, n, mode, ret) (void) 0 +#define xfs_dmapi_event_remove(dip, n, mode) 0 +#define xfs_dmapi_event_postremove(dip, n, mode, ret) (void) 0 +#define xfs_dmapi_event_rename(sdip, sn, tdip, tn) 0 +#define xfs_dmapi_event_postrename(sdip, sn, tdip, tn, ret) (void) 0 +#define xfs_dmapi_event_link(sip, tdip, tn) 0 +#define xfs_dmapi_event_postlink(sip, tdip, tn, ret) (void) 0 +#define xfs_dmapi_event_symlink(path, tdip, tn) 0 +#define xfs_dmapi_event_postsymlink(path, tdip, tip, tn, ret) (void) 0 +#define xfs_dmapi_event_mmap(vma, vm_flags) 0 +#define xfs_dmapi_event_read(ip, offset, length, nb, d, lfl) 0 +#define xfs_dmapi_event_read_simple(ip) 0 +#define xfs_dmapi_event_write(ip, offset, length, nb, d, lfl) 0 +#define xfs_dmapi_event_truncate(ip, size, nb) 0 +#define xfs_dmapi_event_attribute(ip, delay) (void) 0 +#define xfs_dmapi_event_destroy(ip) (void) 0 +#define xfs_dmapi_event_nospace(ip) 0 -static inline int -xfs_dmapi_event_nospace( - struct xfs_inode *ip) -{ - return xfs_dmapi_send_namesp(ip, DM_RIGHT_NULL, NULL, - DM_EVENT_NOSPACE, - ip, DM_RIGHT_NULL, NULL, - 0, 0, 0); /* Delay flag intentionally unused */ -} +#endif /* ! XFS_DMAPI */ #endif /* __XFS_DMAPI_H__ */ + Index: b/fs/xfs/xfs_dmops.c =================================================================== --- a/fs/xfs/xfs_dmops.c +++ b/fs/xfs/xfs_dmops.c @@ -55,8 +55,416 @@ xfs_dmops_get(struct xfs_mount *mp) void xfs_dmops_put(struct xfs_mount *mp) { +#ifdef XFS_DMAPI if (mp->m_dm_ops) { symbol_put(xfs_dmcore_xfs); mp->m_dm_ops = NULL; } +#endif /* XFS_DMAPI */ + ASSERT(!mp->m_dm_ops); } + +#ifdef XFS_DMAPI + +/* Private functions that encapsulate conditionally sending DMAPI messages */ + +static inline int +xfs_dmapi_send_data( + struct xfs_inode *ip, + dm_eventtype_t event, + xfs_off_t offset, + size_t length, + int flags, + int lock_flags) +{ + xfs_send_data_t send_data; + + if (! xfs_dmapi_event_enabled(ip, event)) + return 0; + send_data = ip->i_mount->m_dm_ops->xfs_send_data; + + return send_data(event, ip, offset, length, flags, lock_flags); +} + +static inline int +xfs_dmapi_send_mmap( + struct vm_area_struct *vma, + unsigned long vm_flags) +{ + struct inode *inode = vma->vm_file->f_path.dentry->d_inode; + struct xfs_mount *mp = XFS_M(inode->i_sb); + + if (mp->m_dm_ops) { + xfs_send_mmap_t send_mmap = mp->m_dm_ops->xfs_send_mmap; + + return send_mmap(vma, vm_flags); + } + ASSERT_ALWAYS(vm_flags == VM_WRITE); + + return 0; +} + +static inline int +xfs_dmapi_send_destroy( + struct xfs_inode *ip, + dm_right_t right) +{ + xfs_send_destroy_t send_destroy; + + if (!xfs_dmapi_event_enabled(ip, DM_EVENT_DESTROY)) + return 0; + send_destroy = ip->i_mount->m_dm_ops->xfs_send_destroy; + + return send_destroy(ip, right); +} + +static inline int +xfs_dmapi_send_namesp( + struct xfs_inode *ip1, + dm_right_t right1, + const char *name1, + dm_eventtype_t event, + struct xfs_inode *ip2, + dm_right_t right2, + const char *name2, + mode_t mode, + int ret, + int flags) +{ + int enabled; + xfs_send_namesp_t send_namesp; + + ASSERT(ip1 != NULL); + if (ip2 && ip1->i_mount != ip2->i_mount) + return -EINVAL; + + switch (event) { + case DM_EVENT_PREUNMOUNT: /* xfs_dmapi_send_preunmount() */ + enabled = 1; + break; + case DM_EVENT_CREATE: + case DM_EVENT_POSTCREATE: + case DM_EVENT_REMOVE: + case DM_EVENT_POSTREMOVE: + case DM_EVENT_LINK: + case DM_EVENT_POSTLINK: + case DM_EVENT_SYMLINK: + case DM_EVENT_POSTSYMLINK: + case DM_EVENT_ATTRIBUTE: + case DM_EVENT_NOSPACE: + enabled = xfs_dmapi_event_enabled(ip1, event); + break; + case DM_EVENT_RENAME: + case DM_EVENT_POSTRENAME: + enabled = xfs_dmapi_event_enabled(ip1, event) || + xfs_dmapi_event_enabled(ip2, event); + break; + default: + ASSERT(0); + enabled = 0; + break; + } + if (!enabled) + return 0; + + send_namesp = ip1->i_mount->m_dm_ops->xfs_send_namesp; + + return send_namesp(event, NULL, ip1, right1, ip2, right2, + name1, name2, mode, ret, flags); +} + +static inline int +xfs_dmapi_send_mount( + struct xfs_mount *mp, + char *path) +{ + if (mp->m_dm_ops) { + xfs_send_mount_t send_mount = mp->m_dm_ops->xfs_send_mount; + + return send_mount(mp, DM_RIGHT_NULL, path, mp->m_fsname); + } + + return ENOSYS; +} + +#define XFS_DMAPI_UNMOUNT_FLAGS(mp) \ + (((mp)->m_dmevmask & (1 << DM_EVENT_UNMOUNT)) ? 0 : DM_FLAGS_UNWANTED) + +static inline void +xfs_dmapi_send_preunmount( + struct xfs_mount *mp) +{ + if (mp->m_dm_ops) + (void) xfs_dmapi_send_namesp(mp->m_rootip, DM_RIGHT_NULL, NULL, + DM_EVENT_PREUNMOUNT, + mp->m_rootip, DM_RIGHT_NULL, NULL, + 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); +} + +static inline void +xfs_dmapi_send_unmount( + struct xfs_mount *mp) +{ + if (mp->m_dm_ops) { + xfs_send_unmount_t send_unmount = + mp->m_dm_ops->xfs_send_unmount; + + send_unmount(mp, mp->m_rootip, DM_RIGHT_NULL, + 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); + } +} + +/* + * Exported event functions, which translate file system events into + * the DMAPI messages they should send. + */ + +/* Mount point events */ + +int +xfs_dmapi_event_mount( + struct xfs_mount *mp, + char *path) +{ + return xfs_dmapi_send_mount(mp, path); +} + +void +xfs_dmapi_event_preunmount( + struct xfs_mount *mp) +{ + xfs_dmapi_send_preunmount(mp); +} + +void +xfs_dmapi_event_unmount( + struct xfs_mount *mp) +{ + xfs_dmapi_send_unmount(mp); +} + +/* Inode events */ + +int +xfs_dmapi_event_create( + struct xfs_inode *dip, + const char *name, + mode_t mode) +{ + return xfs_dmapi_send_namesp(dip, DM_RIGHT_NULL, name, + DM_EVENT_CREATE, + NULL, DM_RIGHT_NULL, NULL, + mode, 0, 0); +} + +void +xfs_dmapi_event_postcreate( + struct xfs_inode *dip, + struct xfs_inode *ip, + const char *name, + mode_t mode, + int retcode) +{ + (void) xfs_dmapi_send_namesp(dip, DM_RIGHT_NULL, name, + DM_EVENT_POSTCREATE, + ip, DM_RIGHT_NULL, NULL, + mode, retcode, 0); +} + +int +xfs_dmapi_event_remove( + struct xfs_inode *dip, + const char *name, + mode_t mode) +{ + return xfs_dmapi_send_namesp(dip, DM_RIGHT_NULL, name, + DM_EVENT_REMOVE, + NULL, DM_RIGHT_NULL, NULL, + mode, 0, 0); +} + +void +xfs_dmapi_event_postremove( + struct xfs_inode *dip, + const char *name, + mode_t mode, + int retcode) +{ + (void) xfs_dmapi_send_namesp(dip, DM_RIGHT_NULL, name, + DM_EVENT_POSTREMOVE, + NULL, DM_RIGHT_NULL, NULL, + mode, retcode, 0); +} + +int +xfs_dmapi_event_rename( + struct xfs_inode *src_dip, + const char *src_name, + struct xfs_inode *tgt_dip, + const char *tgt_name) +{ + return xfs_dmapi_send_namesp(src_dip, DM_RIGHT_NULL, src_name, + DM_EVENT_RENAME, + tgt_dip, DM_RIGHT_NULL, tgt_name, + 0, 0, 0); +} + +void +xfs_dmapi_event_postrename( + struct xfs_inode *src_dip, + const char *src_name, + struct xfs_inode *tgt_dip, + const char *tgt_name, + int retcode) +{ + (void) xfs_dmapi_send_namesp(src_dip, DM_RIGHT_NULL, src_name, + DM_EVENT_POSTRENAME, + tgt_dip, DM_RIGHT_NULL, tgt_name, + 0, retcode, 0); +} + +int +xfs_dmapi_event_link( + struct xfs_inode *src_ip, + struct xfs_inode *tgt_dip, + const char *tgt_name) +{ + return xfs_dmapi_send_namesp(tgt_dip, DM_RIGHT_NULL, tgt_name, + DM_EVENT_LINK, + src_ip, DM_RIGHT_NULL, NULL, + 0, 0, 0); +} + +void +xfs_dmapi_event_postlink( + struct xfs_inode *src_ip, + struct xfs_inode *tgt_dip, + const char *tgt_name, + int retcode) +{ + (void) xfs_dmapi_send_namesp(tgt_dip, DM_RIGHT_NULL, tgt_name, + DM_EVENT_POSTLINK, + src_ip, DM_RIGHT_NULL, NULL, + 0, retcode, 0); +} + +int +xfs_dmapi_event_symlink( + const char *path, /* pointed-to path */ + struct xfs_inode *tgt_dip, + const char *tgt_name) +{ + return xfs_dmapi_send_namesp(tgt_dip, DM_RIGHT_NULL, tgt_name, + DM_EVENT_SYMLINK, + NULL, DM_RIGHT_NULL, path, + 0, 0, 0); +} + +void +xfs_dmapi_event_postsymlink( + const char *path, /* pointed-to path */ + struct xfs_inode *tgt_dip, + struct xfs_inode *tgt_ip, /* ignored if retcode != 0 */ + const char *tgt_name, + int retcode) +{ + (void) xfs_dmapi_send_namesp(tgt_dip, DM_RIGHT_NULL, tgt_name, + DM_EVENT_POSTSYMLINK, + retcode ? NULL : tgt_ip, DM_RIGHT_NULL, path, + 0, retcode, 0); +} + +int +xfs_dmapi_event_mmap( + struct vm_area_struct *vma, + unsigned long vm_flags) +{ + return xfs_dmapi_send_mmap(vma, vm_flags); +} + +int +xfs_dmapi_event_read( + struct xfs_inode *ip, + xfs_off_t offset, + size_t length, + int non_blocking, + int direct_io, + int lock_flags) +{ + int dmflags = non_blocking ? DM_FLAGS_NDELAY : 0; + + if (direct_io) + dmflags |= DM_FLAGS_IMUX; + + return xfs_dmapi_send_data(ip, DM_EVENT_READ, offset, + length, dmflags, lock_flags); +} + +int +xfs_dmapi_event_read_simple( + struct xfs_inode *ip) +{ + return xfs_dmapi_event_read(ip, 0, 0, 0, 0, 0); +} + +int +xfs_dmapi_event_write( + struct xfs_inode *ip, + xfs_off_t offset, + size_t length, + int non_blocking, + int direct_io, + int lock_flags) +{ + int dmflags = non_blocking ? DM_FLAGS_NDELAY : 0; + + if (direct_io) + dmflags |= DM_FLAGS_IMUX; + + return xfs_dmapi_send_data(ip, DM_EVENT_WRITE, offset, + length, dmflags, lock_flags); +} + +int +xfs_dmapi_event_truncate( + struct xfs_inode *ip, + xfs_off_t size, + int non_blocking) +{ + int dmflags = DM_FLAGS_IALLOCSEM_WR|DM_FLAGS_IMUX; + + if (non_blocking) + dmflags |= DM_FLAGS_NDELAY; + + return xfs_dmapi_send_data(ip, DM_EVENT_TRUNCATE, size, 0, dmflags, 0); +} + +void +xfs_dmapi_event_attribute( + struct xfs_inode *ip, + int delay) +{ + (void) xfs_dmapi_send_namesp(ip, DM_RIGHT_NULL, NULL, + DM_EVENT_ATTRIBUTE, + NULL, DM_RIGHT_NULL, NULL, + 0, 0, delay ? DM_FLAGS_NDELAY : 0); +} + +void +xfs_dmapi_event_destroy( + struct xfs_inode *ip) +{ + (void) xfs_dmapi_send_destroy(ip, DM_RIGHT_NULL); +} + +int +xfs_dmapi_event_nospace( + struct xfs_inode *ip) +{ + return xfs_dmapi_send_namesp(ip, DM_RIGHT_NULL, NULL, + DM_EVENT_NOSPACE, + ip, DM_RIGHT_NULL, NULL, + 0, 0, 0); /* Delay flag intentionally unused */ +} + +#endif /* XFS_DMAPI */ From aelder@sgi.com Mon Jun 28 17:03:47 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5SM3lYI044384 for ; Mon, 28 Jun 2010 17:03:47 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay2.corp.sgi.com (Postfix) with ESMTP id 0A49E3040A4; Mon, 28 Jun 2010 15:06:33 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o5SM6WYC018230; Mon, 28 Jun 2010 17:06:32 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o5SM6WJ7018228; Mon, 28 Jun 2010 17:06:32 -0500 From: Alex Elder Message-Id: <201006282206.o5SM6WJ7018228@stout.americas.sgi.com> Date: Mon, 28 Jun 2010 17:06:32 -0500 To: xfs@oss.sgi.com Subject: [PATCH 13/15] xfs: make m_dm_ops a void pointer User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean The only remaining reference to the xfs_dmops data type is in the xfs_mount structure. Change that pointer into a void pointer, thereby making it possible to hide the remaining DMAPI type definitions inside the CONFIG_XFS_DMAPI conditional. Signed-off-by: Alex Elder --- fs/xfs/Makefile | 3 +++ fs/xfs/xfs_dmapi.h | 10 +++++----- fs/xfs/xfs_dmops.c | 14 ++++++++------ fs/xfs/xfs_mount.h | 2 +- 4 files changed, 17 insertions(+), 12 deletions(-) Index: b/fs/xfs/Makefile =================================================================== --- a/fs/xfs/Makefile +++ b/fs/xfs/Makefile @@ -23,6 +23,9 @@ XFS_LINUX := linux-2.6 ifeq ($(CONFIG_XFS_DEBUG),y) EXTRA_CFLAGS += -g endif +ifdef CONFIG_XFS_DMAPI + EXTRA_CFLAGS += -I$(srctree)/fs/dmapi +endif obj-$(CONFIG_XFS_FS) += xfs.o Index: b/fs/xfs/xfs_dmapi.h =================================================================== --- a/fs/xfs/xfs_dmapi.h +++ b/fs/xfs/xfs_dmapi.h @@ -151,6 +151,11 @@ typedef enum { * Prototypes and functions for the Data Migration subsystem. */ +extern int xfs_dmops_get(struct xfs_mount *); +extern void xfs_dmops_put(struct xfs_mount *); + +#ifdef XFS_DMAPI + extern struct xfs_dmops xfs_dmcore_xfs; typedef int (*xfs_send_data_t)(int, struct xfs_inode *, @@ -175,11 +180,6 @@ typedef struct xfs_dmops { xfs_send_unmount_t xfs_send_unmount; } xfs_dmops_t; -extern int xfs_dmops_get(struct xfs_mount *); -extern void xfs_dmops_put(struct xfs_mount *); - -#ifdef XFS_DMAPI - /* * DMAPI events only apply if DMAPI support was specified at mount * time. If active, a particular DMAPI event can be enabled for Index: b/fs/xfs/xfs_dmops.c =================================================================== --- a/fs/xfs/xfs_dmops.c +++ b/fs/xfs/xfs_dmops.c @@ -66,6 +66,8 @@ xfs_dmops_put(struct xfs_mount *mp) #ifdef XFS_DMAPI +#define DM_OPS(mp) ((struct xfs_dmops *) (mp)->m_dm_ops) + /* Private functions that encapsulate conditionally sending DMAPI messages */ static inline int @@ -81,7 +83,7 @@ xfs_dmapi_send_data( if (! xfs_dmapi_event_enabled(ip, event)) return 0; - send_data = ip->i_mount->m_dm_ops->xfs_send_data; + send_data = DM_OPS(ip->i_mount)->xfs_send_data; return send_data(event, ip, offset, length, flags, lock_flags); } @@ -95,7 +97,7 @@ xfs_dmapi_send_mmap( struct xfs_mount *mp = XFS_M(inode->i_sb); if (mp->m_dm_ops) { - xfs_send_mmap_t send_mmap = mp->m_dm_ops->xfs_send_mmap; + xfs_send_mmap_t send_mmap = DM_OPS(mp)->xfs_send_mmap; return send_mmap(vma, vm_flags); } @@ -113,7 +115,7 @@ xfs_dmapi_send_destroy( if (!xfs_dmapi_event_enabled(ip, DM_EVENT_DESTROY)) return 0; - send_destroy = ip->i_mount->m_dm_ops->xfs_send_destroy; + send_destroy = DM_OPS(ip->i_mount)->xfs_send_destroy; return send_destroy(ip, right); } @@ -167,7 +169,7 @@ xfs_dmapi_send_namesp( if (!enabled) return 0; - send_namesp = ip1->i_mount->m_dm_ops->xfs_send_namesp; + send_namesp = DM_OPS(ip1->i_mount)->xfs_send_namesp; return send_namesp(event, NULL, ip1, right1, ip2, right2, name1, name2, mode, ret, flags); @@ -179,7 +181,7 @@ xfs_dmapi_send_mount( char *path) { if (mp->m_dm_ops) { - xfs_send_mount_t send_mount = mp->m_dm_ops->xfs_send_mount; + xfs_send_mount_t send_mount = DM_OPS(mp)->xfs_send_mount; return send_mount(mp, DM_RIGHT_NULL, path, mp->m_fsname); } @@ -207,7 +209,7 @@ xfs_dmapi_send_unmount( { if (mp->m_dm_ops) { xfs_send_unmount_t send_unmount = - mp->m_dm_ops->xfs_send_unmount; + DM_OPS(mp)->xfs_send_unmount; send_unmount(mp, mp->m_rootip, DM_RIGHT_NULL, 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); Index: b/fs/xfs/xfs_mount.h =================================================================== --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -182,7 +182,7 @@ typedef struct xfs_mount { uint m_chsize; /* size of next field */ struct xfs_chash *m_chash; /* fs private inode per-cluster * hash table */ - struct xfs_dmops *m_dm_ops; /* vector of DMI ops */ + void *m_dm_ops; /* vector of DMI ops */ struct xfs_qmops *m_qm_ops; /* vector of XQM ops */ atomic_t m_active_trans; /* number trans frozen */ #ifdef HAVE_PERCPU_SB From aelder@sgi.com Mon Jun 28 17:03:58 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5SM3vh4044405 for ; Mon, 28 Jun 2010 17:03:58 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay3.corp.sgi.com (Postfix) with ESMTP id 61345AC044; Mon, 28 Jun 2010 15:06:43 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o5SM6grE018240; Mon, 28 Jun 2010 17:06:42 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o5SM6g8H018238; Mon, 28 Jun 2010 17:06:42 -0500 From: Alex Elder Message-Id: <201006282206.o5SM6g8H018238@stout.americas.sgi.com> Date: Mon, 28 Jun 2010 17:06:42 -0500 To: xfs@oss.sgi.com Subject: [PATCH 14/15] xfs: kill redundant DMAPI definitions User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean A whole bunch of definitions in "xfs_dmapi.h" are never used inside XFS proper. They can be moved into the (out-of-tree) DMAPI support code where they're actually used. This includes the the DMAPI right and event types, as well as the standard DM_FLAGS_* values, which can now be taken from a standard DMAPI header in the (out-of-tree) XFS portion of the DMAPI implementatino. Signed-off-by: Alex Elder --- fs/xfs/xfs_dmapi.h | 140 +++-------------------------------------------------- 1 file changed, 8 insertions(+), 132 deletions(-) Index: b/fs/xfs/xfs_dmapi.h =================================================================== --- a/fs/xfs/xfs_dmapi.h +++ b/fs/xfs/xfs_dmapi.h @@ -18,135 +18,6 @@ #ifndef __XFS_DMAPI_H__ #define __XFS_DMAPI_H__ -#undef XFS_DMAPI -#if defined(CONFIG_XFS_DMAPI) || defined(CONFIG_XFS_DMAPI_MODULE) -#define XFS_DMAPI -#endif - -/* Values used to define the on-disk version of dm_attrname_t. All - * on-disk attribute names start with the 8-byte string "SGI_DMI_". - * - * In the on-disk inode, DMAPI attribute names consist of the user-provided - * name with the DMATTR_PREFIXSTRING pre-pended. This string must NEVER be - * changed. - */ - -#define DMATTR_PREFIXLEN 8 -#define DMATTR_PREFIXSTRING "SGI_DMI_" - -typedef enum { - DM_EVENT_INVALID = -1, - DM_EVENT_CANCEL = 0, /* not supported */ - DM_EVENT_MOUNT = 1, - DM_EVENT_PREUNMOUNT = 2, - DM_EVENT_UNMOUNT = 3, - DM_EVENT_DEBUT = 4, /* not supported */ - DM_EVENT_CREATE = 5, - DM_EVENT_CLOSE = 6, /* not supported */ - DM_EVENT_POSTCREATE = 7, - DM_EVENT_REMOVE = 8, - DM_EVENT_POSTREMOVE = 9, - DM_EVENT_RENAME = 10, - DM_EVENT_POSTRENAME = 11, - DM_EVENT_LINK = 12, - DM_EVENT_POSTLINK = 13, - DM_EVENT_SYMLINK = 14, - DM_EVENT_POSTSYMLINK = 15, - DM_EVENT_READ = 16, - DM_EVENT_WRITE = 17, - DM_EVENT_TRUNCATE = 18, - DM_EVENT_ATTRIBUTE = 19, - DM_EVENT_DESTROY = 20, - DM_EVENT_NOSPACE = 21, - DM_EVENT_USER = 22, - DM_EVENT_MAX = 23 -} dm_eventtype_t; -#define HAVE_DM_EVENTTYPE_T - -typedef enum { - DM_RIGHT_NULL, - DM_RIGHT_SHARED, - DM_RIGHT_EXCL -} dm_right_t; -#define HAVE_DM_RIGHT_T - -#define DM_XFS_VALID_FS_EVENTS ( \ - (1 << DM_EVENT_PREUNMOUNT) | \ - (1 << DM_EVENT_UNMOUNT) | \ - (1 << DM_EVENT_NOSPACE) | \ - (1 << DM_EVENT_DEBUT) | \ - (1 << DM_EVENT_CREATE) | \ - (1 << DM_EVENT_POSTCREATE) | \ - (1 << DM_EVENT_REMOVE) | \ - (1 << DM_EVENT_POSTREMOVE) | \ - (1 << DM_EVENT_RENAME) | \ - (1 << DM_EVENT_POSTRENAME) | \ - (1 << DM_EVENT_LINK) | \ - (1 << DM_EVENT_POSTLINK) | \ - (1 << DM_EVENT_SYMLINK) | \ - (1 << DM_EVENT_POSTSYMLINK) | \ - (1 << DM_EVENT_ATTRIBUTE) | \ - (1 << DM_EVENT_DESTROY) ) - -/* Events valid in dm_set_eventlist() when called with a file handle for - a regular file or a symlink. These events are persistent. -*/ - -#define DM_XFS_VALID_FILE_EVENTS ( \ - (1 << DM_EVENT_ATTRIBUTE) | \ - (1 << DM_EVENT_DESTROY) ) - -/* Events valid in dm_set_eventlist() when called with a file handle for - a directory. These events are persistent. -*/ - -#define DM_XFS_VALID_DIRECTORY_EVENTS ( \ - (1 << DM_EVENT_CREATE) | \ - (1 << DM_EVENT_POSTCREATE) | \ - (1 << DM_EVENT_REMOVE) | \ - (1 << DM_EVENT_POSTREMOVE) | \ - (1 << DM_EVENT_RENAME) | \ - (1 << DM_EVENT_POSTRENAME) | \ - (1 << DM_EVENT_LINK) | \ - (1 << DM_EVENT_POSTLINK) | \ - (1 << DM_EVENT_SYMLINK) | \ - (1 << DM_EVENT_POSTSYMLINK) | \ - (1 << DM_EVENT_ATTRIBUTE) | \ - (1 << DM_EVENT_DESTROY) ) - -/* Events supported by the XFS filesystem. */ -#define DM_XFS_SUPPORTED_EVENTS ( \ - (1 << DM_EVENT_MOUNT) | \ - (1 << DM_EVENT_PREUNMOUNT) | \ - (1 << DM_EVENT_UNMOUNT) | \ - (1 << DM_EVENT_NOSPACE) | \ - (1 << DM_EVENT_CREATE) | \ - (1 << DM_EVENT_POSTCREATE) | \ - (1 << DM_EVENT_REMOVE) | \ - (1 << DM_EVENT_POSTREMOVE) | \ - (1 << DM_EVENT_RENAME) | \ - (1 << DM_EVENT_POSTRENAME) | \ - (1 << DM_EVENT_LINK) | \ - (1 << DM_EVENT_POSTLINK) | \ - (1 << DM_EVENT_SYMLINK) | \ - (1 << DM_EVENT_POSTSYMLINK) | \ - (1 << DM_EVENT_READ) | \ - (1 << DM_EVENT_WRITE) | \ - (1 << DM_EVENT_TRUNCATE) | \ - (1 << DM_EVENT_ATTRIBUTE) | \ - (1 << DM_EVENT_DESTROY) ) - - -/* - * Definitions used for the flags field on dm_send_*_event(). - */ - -#define DM_FLAGS_NDELAY 0x001 /* return EAGAIN after dm_pending() */ -#define DM_FLAGS_UNWANTED 0x002 /* event not in fsys dm_eventset_t */ -#define DM_FLAGS_IMUX 0x004 /* thread holds i_mutex */ -#define DM_FLAGS_IALLOCSEM_RD 0x010 /* thread holds i_alloc_sem rd */ -#define DM_FLAGS_IALLOCSEM_WR 0x020 /* thread holds i_alloc_sem wr */ - /* * Prototypes and functions for the Data Migration subsystem. */ @@ -154,7 +25,12 @@ typedef enum { extern int xfs_dmops_get(struct xfs_mount *); extern void xfs_dmops_put(struct xfs_mount *); -#ifdef XFS_DMAPI +#if defined(CONFIG_XFS_DMAPI) || defined(CONFIG_XFS_DMAPI_MODULE) + +#define XFS_DMAPI /* XFS DMAPI support enabled (module or not) */ + +#include +#include extern struct xfs_dmops xfs_dmcore_xfs; @@ -232,7 +108,7 @@ extern void xfs_dmapi_event_attribute(st extern void xfs_dmapi_event_destroy(struct xfs_inode *); extern int xfs_dmapi_event_nospace(struct xfs_inode *); -#else /* ! XFS_DMAPI */ +#else /* !(defined(CONFIG_XFS_DMAPI) || defined(CONFIG_XFS_DMAPI_MODULE)) */ #define xfs_dmapi_event_enabled(i, e) 0 @@ -259,7 +135,7 @@ extern int xfs_dmapi_event_nospace(struc #define xfs_dmapi_event_destroy(ip) (void) 0 #define xfs_dmapi_event_nospace(ip) 0 -#endif /* ! XFS_DMAPI */ +#endif /* !(defined(CONFIG_XFS_DMAPI) || defined(CONFIG_XFS_DMAPI_MODULE)) */ #endif /* __XFS_DMAPI_H__ */ From aelder@sgi.com Mon Jun 28 17:04:07 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5SM47Gj044421 for ; Mon, 28 Jun 2010 17:04:07 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay1.corp.sgi.com (Postfix) with ESMTP id 114E58F80B7; Mon, 28 Jun 2010 15:06:53 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o5SM6q5F018255; Mon, 28 Jun 2010 17:06:52 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o5SM6qtR018254; Mon, 28 Jun 2010 17:06:52 -0500 From: Alex Elder Message-Id: <201006282206.o5SM6qtR018254@stout.americas.sgi.com> Date: Mon, 28 Jun 2010 17:06:52 -0500 To: xfs@oss.sgi.com Subject: [PATCH 15/15] xfs: move out remaining DMAPI definitions User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Now move all that stuff that's not needed if DMAPI is not present at build time into a separate patch to be maintained out of tree. Signed-off-by: Alex Elder --- fs/xfs/xfs_dmapi.h | 79 ---------- fs/xfs/xfs_dmops.c | 406 ----------------------------------------------------- 2 files changed, 1 insertion(+), 484 deletions(-) Index: b/fs/xfs/xfs_dmapi.h =================================================================== --- a/fs/xfs/xfs_dmapi.h +++ b/fs/xfs/xfs_dmapi.h @@ -29,84 +29,7 @@ extern void xfs_dmops_put(struct xfs_mou #define XFS_DMAPI /* XFS DMAPI support enabled (module or not) */ -#include -#include - -extern struct xfs_dmops xfs_dmcore_xfs; - -typedef int (*xfs_send_data_t)(int, struct xfs_inode *, - xfs_off_t, size_t, int, int); -typedef int (*xfs_send_mmap_t)(struct vm_area_struct *, uint); -typedef int (*xfs_send_destroy_t)(struct xfs_inode *, dm_right_t); -typedef int (*xfs_send_namesp_t)(dm_eventtype_t, struct xfs_mount *, - struct xfs_inode *, dm_right_t, - struct xfs_inode *, dm_right_t, - const char *, const char *, mode_t, int, int); -typedef int (*xfs_send_mount_t)(struct xfs_mount *, dm_right_t, - char *, char *); -typedef void (*xfs_send_unmount_t)(struct xfs_mount *, struct xfs_inode *, - dm_right_t, mode_t, int, int); - -typedef struct xfs_dmops { - xfs_send_data_t xfs_send_data; - xfs_send_mmap_t xfs_send_mmap; - xfs_send_destroy_t xfs_send_destroy; - xfs_send_namesp_t xfs_send_namesp; - xfs_send_mount_t xfs_send_mount; - xfs_send_unmount_t xfs_send_unmount; -} xfs_dmops_t; - -/* - * DMAPI events only apply if DMAPI support was specified at mount - * time. If active, a particular DMAPI event can be enabled for - * all files the file system, or for individual files. - */ -static inline int -xfs_dmapi_event_enabled(struct xfs_inode *ip, dm_eventtype_t event) -{ - unsigned int event_mask = 1 << event; - - return ip->i_mount->m_dm_ops && - (ip->i_mount->m_dmevmask & event_mask || - ip->i_d.di_dmevmask & event_mask); -} - -/* Customized event functions, based on the DMAPI interfaces */ - -extern int xfs_dmapi_event_mount(struct xfs_mount *, char *); -extern void xfs_dmapi_event_preunmount(struct xfs_mount *); -extern void xfs_dmapi_event_unmount(struct xfs_mount *); - -extern int xfs_dmapi_event_create(struct xfs_inode *, const char *, - mode_t mode); -extern void xfs_dmapi_event_postcreate(struct xfs_inode *, - struct xfs_inode *, const char *, mode_t, int); -extern int xfs_dmapi_event_remove(struct xfs_inode *, const char *, - mode_t); -extern void xfs_dmapi_event_postremove(struct xfs_inode *, - const char *, mode_t, int); -extern int xfs_dmapi_event_rename(struct xfs_inode *, const char *, - struct xfs_inode *, const char *); -extern void xfs_dmapi_event_postrename(struct xfs_inode *, const - char *, struct xfs_inode *, const char *, int); -extern int xfs_dmapi_event_link(struct xfs_inode *, struct xfs_inode *, - const char *); -extern void xfs_dmapi_event_postlink(struct xfs_inode *, struct xfs_inode *, - const char *, int); -extern int xfs_dmapi_event_symlink(const char *, struct xfs_inode *, - const char *); -extern void xfs_dmapi_event_postsymlink(const char *, struct xfs_inode *, - struct xfs_inode *, const char *, int); -extern int xfs_dmapi_event_mmap(struct vm_area_struct *, unsigned long); -extern int xfs_dmapi_event_read(struct xfs_inode *, xfs_off_t, size_t, - int, int, int); -extern int xfs_dmapi_event_read_simple(struct xfs_inode *); -extern int xfs_dmapi_event_write(struct xfs_inode *, xfs_off_t, size_t, - int, int, int); -extern int xfs_dmapi_event_truncate(struct xfs_inode *, xfs_off_t, int); -extern void xfs_dmapi_event_attribute(struct xfs_inode *, int); -extern void xfs_dmapi_event_destroy(struct xfs_inode *); -extern int xfs_dmapi_event_nospace(struct xfs_inode *); +#include "dmapi/xfs_dmapi_event.h" #else /* !(defined(CONFIG_XFS_DMAPI) || defined(CONFIG_XFS_DMAPI_MODULE)) */ Index: b/fs/xfs/xfs_dmops.c =================================================================== --- a/fs/xfs/xfs_dmops.c +++ b/fs/xfs/xfs_dmops.c @@ -64,409 +64,3 @@ xfs_dmops_put(struct xfs_mount *mp) ASSERT(!mp->m_dm_ops); } -#ifdef XFS_DMAPI - -#define DM_OPS(mp) ((struct xfs_dmops *) (mp)->m_dm_ops) - -/* Private functions that encapsulate conditionally sending DMAPI messages */ - -static inline int -xfs_dmapi_send_data( - struct xfs_inode *ip, - dm_eventtype_t event, - xfs_off_t offset, - size_t length, - int flags, - int lock_flags) -{ - xfs_send_data_t send_data; - - if (! xfs_dmapi_event_enabled(ip, event)) - return 0; - send_data = DM_OPS(ip->i_mount)->xfs_send_data; - - return send_data(event, ip, offset, length, flags, lock_flags); -} - -static inline int -xfs_dmapi_send_mmap( - struct vm_area_struct *vma, - unsigned long vm_flags) -{ - struct inode *inode = vma->vm_file->f_path.dentry->d_inode; - struct xfs_mount *mp = XFS_M(inode->i_sb); - - if (mp->m_dm_ops) { - xfs_send_mmap_t send_mmap = DM_OPS(mp)->xfs_send_mmap; - - return send_mmap(vma, vm_flags); - } - ASSERT_ALWAYS(vm_flags == VM_WRITE); - - return 0; -} - -static inline int -xfs_dmapi_send_destroy( - struct xfs_inode *ip, - dm_right_t right) -{ - xfs_send_destroy_t send_destroy; - - if (!xfs_dmapi_event_enabled(ip, DM_EVENT_DESTROY)) - return 0; - send_destroy = DM_OPS(ip->i_mount)->xfs_send_destroy; - - return send_destroy(ip, right); -} - -static inline int -xfs_dmapi_send_namesp( - struct xfs_inode *ip1, - dm_right_t right1, - const char *name1, - dm_eventtype_t event, - struct xfs_inode *ip2, - dm_right_t right2, - const char *name2, - mode_t mode, - int ret, - int flags) -{ - int enabled; - xfs_send_namesp_t send_namesp; - - ASSERT(ip1 != NULL); - if (ip2 && ip1->i_mount != ip2->i_mount) - return -EINVAL; - - switch (event) { - case DM_EVENT_PREUNMOUNT: /* xfs_dmapi_send_preunmount() */ - enabled = 1; - break; - case DM_EVENT_CREATE: - case DM_EVENT_POSTCREATE: - case DM_EVENT_REMOVE: - case DM_EVENT_POSTREMOVE: - case DM_EVENT_LINK: - case DM_EVENT_POSTLINK: - case DM_EVENT_SYMLINK: - case DM_EVENT_POSTSYMLINK: - case DM_EVENT_ATTRIBUTE: - case DM_EVENT_NOSPACE: - enabled = xfs_dmapi_event_enabled(ip1, event); - break; - case DM_EVENT_RENAME: - case DM_EVENT_POSTRENAME: - enabled = xfs_dmapi_event_enabled(ip1, event) || - xfs_dmapi_event_enabled(ip2, event); - break; - default: - ASSERT(0); - enabled = 0; - break; - } - if (!enabled) - return 0; - - send_namesp = DM_OPS(ip1->i_mount)->xfs_send_namesp; - - return send_namesp(event, NULL, ip1, right1, ip2, right2, - name1, name2, mode, ret, flags); -} - -static inline int -xfs_dmapi_send_mount( - struct xfs_mount *mp, - char *path) -{ - if (mp->m_dm_ops) { - xfs_send_mount_t send_mount = DM_OPS(mp)->xfs_send_mount; - - return send_mount(mp, DM_RIGHT_NULL, path, mp->m_fsname); - } - - return ENOSYS; -} - -#define XFS_DMAPI_UNMOUNT_FLAGS(mp) \ - (((mp)->m_dmevmask & (1 << DM_EVENT_UNMOUNT)) ? 0 : DM_FLAGS_UNWANTED) - -static inline void -xfs_dmapi_send_preunmount( - struct xfs_mount *mp) -{ - if (mp->m_dm_ops) - (void) xfs_dmapi_send_namesp(mp->m_rootip, DM_RIGHT_NULL, NULL, - DM_EVENT_PREUNMOUNT, - mp->m_rootip, DM_RIGHT_NULL, NULL, - 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); -} - -static inline void -xfs_dmapi_send_unmount( - struct xfs_mount *mp) -{ - if (mp->m_dm_ops) { - xfs_send_unmount_t send_unmount = - DM_OPS(mp)->xfs_send_unmount; - - send_unmount(mp, mp->m_rootip, DM_RIGHT_NULL, - 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); - } -} - -/* - * Exported event functions, which translate file system events into - * the DMAPI messages they should send. - */ - -/* Mount point events */ - -int -xfs_dmapi_event_mount( - struct xfs_mount *mp, - char *path) -{ - return xfs_dmapi_send_mount(mp, path); -} - -void -xfs_dmapi_event_preunmount( - struct xfs_mount *mp) -{ - xfs_dmapi_send_preunmount(mp); -} - -void -xfs_dmapi_event_unmount( - struct xfs_mount *mp) -{ - xfs_dmapi_send_unmount(mp); -} - -/* Inode events */ - -int -xfs_dmapi_event_create( - struct xfs_inode *dip, - const char *name, - mode_t mode) -{ - return xfs_dmapi_send_namesp(dip, DM_RIGHT_NULL, name, - DM_EVENT_CREATE, - NULL, DM_RIGHT_NULL, NULL, - mode, 0, 0); -} - -void -xfs_dmapi_event_postcreate( - struct xfs_inode *dip, - struct xfs_inode *ip, - const char *name, - mode_t mode, - int retcode) -{ - (void) xfs_dmapi_send_namesp(dip, DM_RIGHT_NULL, name, - DM_EVENT_POSTCREATE, - ip, DM_RIGHT_NULL, NULL, - mode, retcode, 0); -} - -int -xfs_dmapi_event_remove( - struct xfs_inode *dip, - const char *name, - mode_t mode) -{ - return xfs_dmapi_send_namesp(dip, DM_RIGHT_NULL, name, - DM_EVENT_REMOVE, - NULL, DM_RIGHT_NULL, NULL, - mode, 0, 0); -} - -void -xfs_dmapi_event_postremove( - struct xfs_inode *dip, - const char *name, - mode_t mode, - int retcode) -{ - (void) xfs_dmapi_send_namesp(dip, DM_RIGHT_NULL, name, - DM_EVENT_POSTREMOVE, - NULL, DM_RIGHT_NULL, NULL, - mode, retcode, 0); -} - -int -xfs_dmapi_event_rename( - struct xfs_inode *src_dip, - const char *src_name, - struct xfs_inode *tgt_dip, - const char *tgt_name) -{ - return xfs_dmapi_send_namesp(src_dip, DM_RIGHT_NULL, src_name, - DM_EVENT_RENAME, - tgt_dip, DM_RIGHT_NULL, tgt_name, - 0, 0, 0); -} - -void -xfs_dmapi_event_postrename( - struct xfs_inode *src_dip, - const char *src_name, - struct xfs_inode *tgt_dip, - const char *tgt_name, - int retcode) -{ - (void) xfs_dmapi_send_namesp(src_dip, DM_RIGHT_NULL, src_name, - DM_EVENT_POSTRENAME, - tgt_dip, DM_RIGHT_NULL, tgt_name, - 0, retcode, 0); -} - -int -xfs_dmapi_event_link( - struct xfs_inode *src_ip, - struct xfs_inode *tgt_dip, - const char *tgt_name) -{ - return xfs_dmapi_send_namesp(tgt_dip, DM_RIGHT_NULL, tgt_name, - DM_EVENT_LINK, - src_ip, DM_RIGHT_NULL, NULL, - 0, 0, 0); -} - -void -xfs_dmapi_event_postlink( - struct xfs_inode *src_ip, - struct xfs_inode *tgt_dip, - const char *tgt_name, - int retcode) -{ - (void) xfs_dmapi_send_namesp(tgt_dip, DM_RIGHT_NULL, tgt_name, - DM_EVENT_POSTLINK, - src_ip, DM_RIGHT_NULL, NULL, - 0, retcode, 0); -} - -int -xfs_dmapi_event_symlink( - const char *path, /* pointed-to path */ - struct xfs_inode *tgt_dip, - const char *tgt_name) -{ - return xfs_dmapi_send_namesp(tgt_dip, DM_RIGHT_NULL, tgt_name, - DM_EVENT_SYMLINK, - NULL, DM_RIGHT_NULL, path, - 0, 0, 0); -} - -void -xfs_dmapi_event_postsymlink( - const char *path, /* pointed-to path */ - struct xfs_inode *tgt_dip, - struct xfs_inode *tgt_ip, /* ignored if retcode != 0 */ - const char *tgt_name, - int retcode) -{ - (void) xfs_dmapi_send_namesp(tgt_dip, DM_RIGHT_NULL, tgt_name, - DM_EVENT_POSTSYMLINK, - retcode ? NULL : tgt_ip, DM_RIGHT_NULL, path, - 0, retcode, 0); -} - -int -xfs_dmapi_event_mmap( - struct vm_area_struct *vma, - unsigned long vm_flags) -{ - return xfs_dmapi_send_mmap(vma, vm_flags); -} - -int -xfs_dmapi_event_read( - struct xfs_inode *ip, - xfs_off_t offset, - size_t length, - int non_blocking, - int direct_io, - int lock_flags) -{ - int dmflags = non_blocking ? DM_FLAGS_NDELAY : 0; - - if (direct_io) - dmflags |= DM_FLAGS_IMUX; - - return xfs_dmapi_send_data(ip, DM_EVENT_READ, offset, - length, dmflags, lock_flags); -} - -int -xfs_dmapi_event_read_simple( - struct xfs_inode *ip) -{ - return xfs_dmapi_event_read(ip, 0, 0, 0, 0, 0); -} - -int -xfs_dmapi_event_write( - struct xfs_inode *ip, - xfs_off_t offset, - size_t length, - int non_blocking, - int direct_io, - int lock_flags) -{ - int dmflags = non_blocking ? DM_FLAGS_NDELAY : 0; - - if (direct_io) - dmflags |= DM_FLAGS_IMUX; - - return xfs_dmapi_send_data(ip, DM_EVENT_WRITE, offset, - length, dmflags, lock_flags); -} - -int -xfs_dmapi_event_truncate( - struct xfs_inode *ip, - xfs_off_t size, - int non_blocking) -{ - int dmflags = DM_FLAGS_IALLOCSEM_WR|DM_FLAGS_IMUX; - - if (non_blocking) - dmflags |= DM_FLAGS_NDELAY; - - return xfs_dmapi_send_data(ip, DM_EVENT_TRUNCATE, size, 0, dmflags, 0); -} - -void -xfs_dmapi_event_attribute( - struct xfs_inode *ip, - int delay) -{ - (void) xfs_dmapi_send_namesp(ip, DM_RIGHT_NULL, NULL, - DM_EVENT_ATTRIBUTE, - NULL, DM_RIGHT_NULL, NULL, - 0, 0, delay ? DM_FLAGS_NDELAY : 0); -} - -void -xfs_dmapi_event_destroy( - struct xfs_inode *ip) -{ - (void) xfs_dmapi_send_destroy(ip, DM_RIGHT_NULL); -} - -int -xfs_dmapi_event_nospace( - struct xfs_inode *ip) -{ - return xfs_dmapi_send_namesp(ip, DM_RIGHT_NULL, NULL, - DM_EVENT_NOSPACE, - ip, DM_RIGHT_NULL, NULL, - 0, 0, 0); /* Delay flag intentionally unused */ -} - -#endif /* XFS_DMAPI */ From BATV+a943b9d3351e01f936e3+2501+infradead.org+hch@bombadil.srs.infradead.org Tue Jun 29 02:54:52 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5T7spGT067896 for ; Tue, 29 Jun 2010 02:54:52 -0500 X-ASG-Debug-ID: 1277798544-7bd402730000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 4DD3014B262C; Tue, 29 Jun 2010 01:02:25 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id 4f1EZc2b2X9sSGar; Tue, 29 Jun 2010 01:02:25 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OTVhG-0000PP-R9; Tue, 29 Jun 2010 07:57:34 +0000 Date: Tue, 29 Jun 2010 03:57:34 -0400 From: Christoph Hellwig To: Alex Elder Cc: xfs@oss.sgi.com, linux-kernel@vger.kernel.org X-ASG-Orig-Subj: Re: [PATCH 00/15] xfs: minimize DMAPI footprint Subject: Re: [PATCH 00/15] xfs: minimize DMAPI footprint Message-ID: <20100629075734.GA31118@infradead.org> References: <1277762653.2040.554.camel@doink> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1277762653.2040.554.camel@doink> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277798545 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean > SGI has a product that uses the DMAPI support code that's > included in mainline XFS, along with some additional code > (the "never merged" stuff Christoph refers to) that we > maintain separately. To our customers that need it, this > is an extremely important feature. So why don't you bother to get HSM support upstream properly, or at least maintain it somewhere where you can get at it? What sourcxe tree do those important customers use it? > What follows is a set of patches that I think accomplishes > these goals. The net result of these changes is: While this is a lot better than the old DMAPI supoort, it's still lots of dead code in the mainline tree, that won't ever be used there, as proper HSM suport if it ever was merged would sit at the VFS layer. In addition to that the people who effectively maintain XFS for both the community and lots of paying customers have done a large amount of work ontop of the DMAPI removal of the last 1 1/2 month. So I'd say rebase your changes over http://git.kernel.org/?p=linux/kernel/git/dgc/xfsdev.git;a=shortlog;h=refs/heads/for-2.6.36 and keep them in a separate branch dmapi-dev branch where SGI can pull the code for it's customers from. This branch could also include the actual dmapi code and core kernel modifications, so that people that want dmapi support actually have chance to find a complete kernel tree for it. I'd also hope you have fixed grave bugs like the oops on unmount after multiple mount one I pointed out to SGI about two years ago, but which still wasn't fixed inthe last dmapi enabled tree. From BATV+a943b9d3351e01f936e3+2501+infradead.org+hch@bombadil.srs.infradead.org Tue Jun 29 02:56:11 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5T7uBcG067946 for ; Tue, 29 Jun 2010 02:56:11 -0500 X-ASG-Debug-ID: 1277798337-48ae00180000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id C343B1568D6B; Tue, 29 Jun 2010 00:58:57 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id JL0SW2CbnhfrALsk; Tue, 29 Jun 2010 00:58:57 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OTViZ-0002kf-M9; Tue, 29 Jun 2010 07:58:55 +0000 Date: Tue, 29 Jun 2010 03:58:55 -0400 From: Christoph Hellwig To: Alex Elder Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 09/15] xfs: rewrite XFS_SEND_NAMESP() as a function Subject: Re: [PATCH 09/15] xfs: rewrite XFS_SEND_NAMESP() as a function Message-ID: <20100629075855.GB31118@infradead.org> References: <201006282205.o5SM5qNZ018194@stout.americas.sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201006282205.o5SM5qNZ018194@stout.americas.sgi.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277798337 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean A lot of arguments for the namesp even are always NULL or use defaults. You'll make your life a simpler by just removing them. This also applies to some of the other dmapi callout, but it's most extreme here. From BATV+a943b9d3351e01f936e3+2501+infradead.org+hch@bombadil.srs.infradead.org Tue Jun 29 08:32:17 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5TDWG71080360 for ; Tue, 29 Jun 2010 08:32:17 -0500 X-ASG-Debug-ID: 1277818790-2f7a012c0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 640F815A98D8; Tue, 29 Jun 2010 06:39:50 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id fyYFi1Ec6CgdMytU; Tue, 29 Jun 2010 06:39:50 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OTaxo-0004u7-Ei; Tue, 29 Jun 2010 13:35:00 +0000 Date: Tue, 29 Jun 2010 09:35:00 -0400 From: Christoph Hellwig To: Alex Elder Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH 03/15] xfs: move DMAPI definitions out of "xfs_mount.h" Subject: Re: [PATCH 03/15] xfs: move DMAPI definitions out of "xfs_mount.h" Message-ID: <20100629133500.GA11312@infradead.org> References: <201006282204.o5SM4qbU018132@stout.americas.sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201006282204.o5SM4qbU018132@stout.americas.sgi.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1277818790 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Mon, Jun 28, 2010 at 05:04:52PM -0500, Alex Elder wrote: > XFS defines a bunch of DMAPI cruft in xfs_mount.h. There is no need > for it to be there; move it instead into the xfs_dmapi.h file. A > side-effect of this is that "xfs_dmapi.h" now depends on and needs > to be #included after "xfs_mount.h" and "xfs_inode.h" (the latter of > which itself depends on a "xfs_bmap_btree.h"). > > On the other hand, "xfs_dmapi.h" is #included by a LOT more files > than it needs to be, so eliminate those cases. > > Finally, "xfs_inode.h" defines a type dm_attrs_t that is never > referenced anywhere else, so kill it off. Asserting copyright on removing single include lines seems rather interesting.. From nailman23@gmail.com Tue Jun 29 09:18:58 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: *** X-Spam-Status: No, score=3.9 required=5.0 tests=BAYES_50,FREEMAIL_FROM, HTML_MESSAGE,J_CHICKENPOX_44,T_TO_NO_BRKTS_FREEMAIL autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5TEIwMV081602 for ; Tue, 29 Jun 2010 09:18:58 -0500 X-ASG-Debug-ID: 1277821303-6a1503570000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from fg-out-2122.google.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 533861E1862C for ; Tue, 29 Jun 2010 07:21:43 -0700 (PDT) Received: from fg-out-2122.google.com (fg-out-2122.google.com [72.14.220.24]) by cuda.sgi.com with ESMTP id bQIHlOAAvkoHCC2g for ; Tue, 29 Jun 2010 07:21:43 -0700 (PDT) Received: by fg-out-2122.google.com with SMTP id e9so77959fga.8 for ; Tue, 29 Jun 2010 07:21:42 -0700 (PDT) MIME-Version: 1.0 Received: by 10.87.38.12 with SMTP id q12mr479417fgj.8.1277821302005; Tue, 29 Jun 2010 07:21:42 -0700 (PDT) Message-ID: <001636458d40cae4e1048a2bf4e9@google.com> Date: Tue, 29 Jun 2010 14:21:42 +0000 X-ASG-Orig-Subj: XFS and Extended ACLs Subject: XFS and Extended ACLs From: nailman23@gmail.com To: xfs@oss.sgi.com Content-Type: multipart/alternative; boundary=001636458d40cae4ce048a2bf4e6 X-Barracuda-Connect: fg-out-2122.google.com[72.14.220.24] X-Barracuda-Start-Time: 1277821304 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0003 1.0000 -2.0193 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=HTML_MESSAGE, NO_REAL_NAME X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33907 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 X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --001636458d40cae4ce048a2bf4e6 Content-Type: text/plain; charset=ISO-8859-1; format=flowed; delsp=yes Hi All, I have an issue with extended ACLs. The situation is as follows: 1) There are two users (UserA and UserB) 2) They belong to the same group (users) 3) The SAMBA share called "test" has user access enabled for UserA and UserB 4) The UserA creates test.docx file on the "test" share and he becomes the owner of the file. 5) Then UserB edits the test.docx file and save changes. After that UserB becomes the owner. It is not an issue because when editing the file Word creates new temporary file and then, during saving, overwrites the original file. The issue is when you check ACLs entry you will see that UserA has his own ACLs entries, although he already belongs to the "users" groups. This occurs when the share has XFS file system in the bottom. Then I have created an ext3 file system on the logical volume and after performing all steps, the UserB was owner of the file, but the UserA was no longer listed in ACLs entries. It seems the issue comes from XFS and the way as the XFS handles the ACLs permissions. The smb.conf is exactly the same in both cases so I do not believe it is SAMBA issue, but if you want I can send the smb.conf file. Do you know if there is way I could overcome this, in other words, that XFS would behave in the same manner as ie ext3. Thank you in advance. Slawek --001636458d40cae4ce048a2bf4e6 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi All,

I have an issue with extended ACLs. The situation is as = follows:
1) There are two users (UserA and UserB)
2) They belong = to the same group (users)
3) The SAMBA share called "test" h= as user access enabled for UserA and UserB
4) The UserA creates test.d= ocx file on the "test" share and he becomes the owner of the file= .
5) Then UserB edits the test.docx file and save changes. After that = UserB becomes the owner. It is not an issue because when editing the file W= ord creates new temporary file and then, during saving, overwrites the orig= inal file. The issue is when you check ACLs entry you will see that UserA h= as his own ACLs entries, although he already belongs to the "users&quo= t; groups.

This occurs when the share has XFS file system in the= bottom.

Then I have created an ext3 file system on the logical = volume and after performing all steps, the UserB was owner of the file, but= the UserA was no longer listed in ACLs entries.

It seems the is= sue comes from XFS and the way as the XFS handles the ACLs permissions.
The smb.conf is exactly the same in both cases so I do not believe= it is SAMBA issue, but if you want I can send the smb.conf file.

Do you know if there is way I could overcome this, in other words, that X= FS would behave in the same manner as i.e. ext3.

Thank you in ad= vance.

Slawek --001636458d40cae4ce048a2bf4e6-- From apache2@racer.rtt4.net Tue Jun 29 12:46:28 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: **** X-Spam-Status: No, score=4.9 required=5.0 tests=BAYES_60,FORGED_HOTMAIL_RCVD2, FREEMAIL_FROM,HK_NAME_FREE,T_TO_NO_BRKTS_FREEMAIL autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5THkRct087546 for ; Tue, 29 Jun 2010 12:46:28 -0500 X-ASG-Debug-ID: 1277833751-78ca00660000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from racer.rtt4.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 29F771531C67 for ; Tue, 29 Jun 2010 10:49:12 -0700 (PDT) Received: from racer.rtt4.net (gw01.rtt4.net [80.74.153.40]) by cuda.sgi.com with ESMTP id bEAOejTs0NY4E9aP for ; Tue, 29 Jun 2010 10:49:12 -0700 (PDT) Received: from apache2 by racer.rtt4.net with local (Exim 4.63) (envelope-from ) id 1OTevm-0002lc-HA for xfs@oss.sgi.com; Tue, 29 Jun 2010 19:49:10 +0200 To: xfs@oss.sgi.com X-ASG-Orig-Subj: free phone system network call telephone internet voip Gateway Mrirtvb.com/viop Subject: free phone system network call telephone internet voip Gateway Mrirtvb.com/viop From: Free phone Reply-To: MIME-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Message-Id: Date: Tue, 29 Jun 2010 19:49:10 +0200 X-Barracuda-Connect: gw01.rtt4.net[80.74.153.40] X-Barracuda-Start-Time: 1277833753 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0439 1.0000 -1.7380 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -0.02 X-Barracuda-Spam-Status: No, SCORE=-0.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=FORGED_HOTMAIL_RCVD2, MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33919 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words 1.12 FORGED_HOTMAIL_RCVD2 hotmail.com 'From' address, but no 'Received:' X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean free phone system network call telephone internet voip Gateway http://www.mrirtvb.com/viop From xfs@tlinx.org Tue Jun 29 17:30:43 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5TMUhi8095094 for ; Tue, 29 Jun 2010 17:30:43 -0500 X-ASG-Debug-ID: 1277850808-49a3016d0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from Ishtar.sc.tlinx.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id EA20E1E1969F for ; Tue, 29 Jun 2010 15:33:28 -0700 (PDT) Received: from Ishtar.sc.tlinx.org (ishtar.tlinx.org [173.164.175.65]) by cuda.sgi.com with ESMTP id 7rIEFXJL7IhjAhoR for ; Tue, 29 Jun 2010 15:33:28 -0700 (PDT) Received: from [192.168.3.12] (Athenae [192.168.3.12]) by Ishtar.sc.tlinx.org (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5TMX2Zw007128; Tue, 29 Jun 2010 15:33:05 -0700 Message-ID: <4C2A749E.4060006@tlinx.org> Date: Tue, 29 Jun 2010 15:33:02 -0700 From: Linda Walsh User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.8.1.24) Gecko/20100228 Lightning/0.9 Thunderbird/2.0.0.24 Mnenhy/0.7.6.666 MIME-Version: 1.0 To: Dave Chinner , xfs-oss X-ASG-Orig-Subj: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ;-/ (was xfs_dump problem...) Subject: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ;-/ (was xfs_dump problem...) References: <4C26A51F.8020909@tlinx.org> <20100628022744.GX6590@dastard> In-Reply-To: <20100628022744.GX6590@dastard> X-Stationery: 0.5.1 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Barracuda-Connect: ishtar.tlinx.org[173.164.175.65] X-Barracuda-Start-Time: 1277850808 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33939 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Dave Chinner wrote: > Can you get a list of all the attributes and their sizes on the > inodes xfsdump is complaining about? > > Cheers, > > Dave. Wish I could...had a software problem that had me have to reuse the drive I just copied those examples from. But have another XFS problem that is much more reliably persistent. I don't know if they are at all related, but since I have this problem that's a bit "stuck", it's easier to "reproduce". Filesystem is one of my larger ones: Ishtar:/Torrents> 'df' -T --sync . Filesystem Type 1K-blocks Used Available Use% Mounted on /dev/dm-7 xfs 6442319744 2305631080 4136688664 36% /Torrents Ishtar:/Torrents> 'df' -iT --sync . Filesystem Type Inodes IUsed IFree IUse% Mounted on /dev/dm-7 xfs 1288490112 34313 1288455799 1% /Torrents I have 3 files that developed 'bugs' in them in 3 separate directories. Oddly, they were they were 3 copies of the same 3 files. Very Odd. Symptom is from ls: --------------------------------------------------------------------------------------------------- Ishtar:/Torrents> 'ls' -ni bad* ls: cannot access bad/30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3: No such file or directory ls: cannot access bad/31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3: No such file or directory ls: cannot access bad/32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3: No such file or directory bad: total 0 2359101 ?????????? ? ? ? ? ? 30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3 2354946 ?????????? ? ? ? ? ? 31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3 2354949 ?????????? ? ? ? ? ? 32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3 ls: cannot access bad2/30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3: No such file or directory ls: cannot access bad2/31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3: No such file or directory ls: cannot access bad2/32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3: No such file or directory bad2: total 0 2220560 ?????????? ? ? ? ? ? 30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3 2220561 ?????????? ? ? ? ? ? 31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3 2218302 ?????????? ? ? ? ? ? 32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3 ls: cannot access bad3/30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3: No such file or directory ls: cannot access bad3/31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3: No such file or directory ls: cannot access bad3/32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3: No such file or directory bad3: total 0 2218295 ?????????? ? ? ? ? ? 30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3 2218296 ?????????? ? ? ? ? ? 31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3 2218297 ?????????? ? ? ? ? ? 32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3 --------------------------------------------------------------------------------------------------- The file system, labeled 'Torrents' is layered on a lvm base (I'm not convinced that lvm is as reliable as physical partitions at this point, which is why I mention it). It's a 'live' file system. What info do you want me to dump from it? I'm dumping the files from it now, so I can try to remake the file system. The problem is 'spreading' to "new" files. Basically, any file that is being written to now, seems to be in danger of becoming inaccessible. Also, FWIW -- I did unmount the file system and run xfs_repair. It finds no problems -- so why are these files not accessible? Ideas? Next steps? Thanks! Linda From SRS0+hLT1+29+fromorbit.com=david@internode.on.net Tue Jun 29 18:13:02 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_44 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5TND2Ix097068 for ; Tue, 29 Jun 2010 18:13:02 -0500 X-ASG-Debug-ID: 1277853346-1b1f00060000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 25FCB4193F4 for ; Tue, 29 Jun 2010 16:15:46 -0700 (PDT) Received: from mail.internode.on.net (bld-mail14.adl6.internode.on.net [150.101.137.99]) by cuda.sgi.com with ESMTP id UOvi5wBs2CbrCOHN for ; Tue, 29 Jun 2010 16:15:46 -0700 (PDT) Received: from dastard (unverified [121.44.238.155]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 30010969-1927428 for multiple; Wed, 30 Jun 2010 08:45:45 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OTk1n-0006QW-Ud; Wed, 30 Jun 2010 09:15:43 +1000 Date: Wed, 30 Jun 2010 09:15:43 +1000 From: Dave Chinner To: nailman23@gmail.com Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: XFS and Extended ACLs Subject: Re: XFS and Extended ACLs Message-ID: <20100629231543.GC6590@dastard> References: <001636458d40cae4e1048a2bf4e9@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <001636458d40cae4e1048a2bf4e9@google.com> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail14.adl6.internode.on.net[150.101.137.99] X-Barracuda-Start-Time: 1277853348 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=MAILTO_TO_SPAM_ADDR X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33941 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 MAILTO_TO_SPAM_ADDR URI: Includes a link to a likely spammer email X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 29, 2010 at 02:21:42PM +0000, nailman23@gmail.com wrote: > Hi All, > > I have an issue with extended ACLs. The situation is as follows: > 1) There are two users (UserA and UserB) > 2) They belong to the same group (users) > 3) The SAMBA share called "test" has user access enabled for UserA and UserB > 4) The UserA creates test.docx file on the "test" share and he > becomes the owner of the file. > 5) Then UserB edits the test.docx file and save changes. After that > UserB becomes the owner. It is not an issue because when editing the > file Word creates new temporary file and then, during saving, > overwrites the original file. The issue is when you check ACLs entry > you will see that UserA has his own ACLs entries, although he > already belongs to the "users" groups. > > This occurs when the share has XFS file system in the bottom. > > Then I have created an ext3 file system on the logical volume and > after performing all steps, the UserB was owner of the file, but the > UserA was no longer listed in ACLs entries. Can you provide a script that demonstrates the problem? > It seems the issue comes from XFS and the way as the XFS handles the > ACLs permissions. XFS uses the most of the generic code for getting and setting ACLs, so there shouldn't be any difference unless there is a bug or you are using an old kernel. What kernel are you running? Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0+IrPP+29+fromorbit.com=david@internode.on.net Tue Jun 29 18:22:51 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5TNMoDL097341 for ; Tue, 29 Jun 2010 18:22:51 -0500 X-ASG-Debug-ID: 1277853934-498f021e0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 57CD01D61F0C for ; Tue, 29 Jun 2010 16:25:35 -0700 (PDT) Received: from mail.internode.on.net (bld-mail19.adl2.internode.on.net [150.101.137.104]) by cuda.sgi.com with ESMTP id oOhPFAb6O8XlWZPf for ; Tue, 29 Jun 2010 16:25:35 -0700 (PDT) Received: from dastard (unverified [121.44.238.155]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 29581931-1927428 for multiple; Wed, 30 Jun 2010 08:55:34 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OTkBI-0006RP-FX; Wed, 30 Jun 2010 09:25:32 +1000 Date: Wed, 30 Jun 2010 09:25:32 +1000 From: Dave Chinner To: Linda Walsh Cc: xfs-oss X-ASG-Orig-Subj: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ;-/ (was xfs_dump problem...) Subject: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ;-/ (was xfs_dump problem...) Message-ID: <20100629232532.GA24712@dastard> References: <4C26A51F.8020909@tlinx.org> <20100628022744.GX6590@dastard> <4C2A749E.4060006@tlinx.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <4C2A749E.4060006@tlinx.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail19.adl2.internode.on.net[150.101.137.104] X-Barracuda-Start-Time: 1277853936 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33943 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 29, 2010 at 03:33:02PM -0700, Linda Walsh wrote: > Dave Chinner wrote: > >Can you get a list of all the attributes and their sizes on the > >inodes xfsdump is complaining about? > > > >Cheers, > > > >Dave. > Wish I could...had a software problem that had me have to reuse the > drive I just copied those examples from. > > But have another XFS problem that is much more reliably persistent. > I don't know if they are at all related, but since I have this problem > that's a bit "stuck", it's easier to "reproduce". > > Filesystem is one of my larger ones: > > Ishtar:/Torrents> 'df' -T --sync . > Filesystem Type 1K-blocks Used Available Use% Mounted on > /dev/dm-7 xfs 6442319744 2305631080 4136688664 36% /Torrents > Ishtar:/Torrents> 'df' -iT --sync . > Filesystem Type Inodes IUsed IFree IUse% Mounted on > /dev/dm-7 xfs 1288490112 34313 1288455799 1% /Torrents > > I have 3 files that developed 'bugs' in them in 3 separate > directories. Oddly, they were they were 3 copies of the same 3 > files. Very Odd. > > Symptom is from ls: > --------------------------------------------------------------------------------------------------- > Ishtar:/Torrents> 'ls' -ni bad* ls: cannot access bad/30-Omoide > to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3: No such file or directory > ls: cannot access bad/31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3: No such file or directory > ls: cannot access bad/32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3: No such file or directory > bad: > total 0 > 2359101 ?????????? ? ? ? ? ? 30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3 > 2354946 ?????????? ? ? ? ? ? 31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3 > 2354949 ?????????? ? ? ? ? ? 32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3 > ls: cannot access bad2/30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3: No such file or directory > ls: cannot access bad2/31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3: No such file or directory > ls: cannot access bad2/32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3: No such file or directory Those file names have a weird character in them - are you sure that the terminal supports that character set and is not mangling it and hence not matching what is actually stored on disk? > The file system, labeled 'Torrents' is layered on a lvm base (I'm not convinced that > lvm is as reliable as physical partitions at this point, which is why I mention it). > > It's a 'live' file system. What info do you want me to dump from it? > > I'm dumping the files from it now, so I can try to remake the file system. > > The problem is 'spreading' to "new" files. Basically, any file that is being written to > now, seems to be in danger of becoming inaccessible. Do those "new" files have the same strange characters in them? > Also, FWIW -- I did unmount the file system and run xfs_repair. It > finds no problems -- so why are these files not accessible? If there are no problems reported by repair, then I suspect that it's a terminal level problem... Cheers, Dave. -- Dave Chinner david@fromorbit.com From mw@dermichi.com Tue Jun 29 18:53:05 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5TNr4we098287 for ; Tue, 29 Jun 2010 18:53:05 -0500 X-ASG-Debug-ID: 1277856040-5eda039c0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from firestarter.dermichi.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id BD6761171B28 for ; Tue, 29 Jun 2010 17:00:41 -0700 (PDT) Received: from firestarter.dermichi.com (firestarter.dermichi.com [78.41.115.230]) by cuda.sgi.com with ESMTP id ZcecmuaJVBgzyzk5 for ; Tue, 29 Jun 2010 17:00:41 -0700 (PDT) Received: from moonwalker.lan.dermichi.com ([2001:15c0:6679:1:218:8bff:feb1:c9e8]) by firestarter.dermichi.com with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.72) (envelope-from ) id 1OTkeZ-0006rH-0N for xfs@oss.sgi.com; Wed, 30 Jun 2010 01:55:47 +0200 Message-ID: <4C2A87FF.7090804@dermichi.com> Date: Wed, 30 Jun 2010 01:55:43 +0200 From: Michael Weissenbacher User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.9) Gecko/20100423 Thunderbird/3.0.4 MIME-Version: 1.0 To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ;-/ (was xfs_dump problem...) Subject: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ;-/ (was xfs_dump problem...) References: <4C26A51F.8020909@tlinx.org> <20100628022744.GX6590@dastard> <4C2A749E.4060006@tlinx.org> <20100629232532.GA24712@dastard> In-Reply-To: <20100629232532.GA24712@dastard> X-Enigmail-Version: 1.0.1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: firestarter.dermichi.com[78.41.115.230] X-Barracuda-Start-Time: 1277856041 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0032 1.0000 -1.9999 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.00 X-Barracuda-Spam-Status: No, SCORE=-2.00 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33944 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Hi! >> 2359101 ?????????? ? ? ? ? ? 30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3 >> 2354946 ?????????? ? ? ? ? ? 31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3 >> 2354949 ?????????? ? ? ? ? ? 32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3 >> ls: cannot access bad2/30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3: No such file or directory >> ls: cannot access bad2/31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3: No such file or directory >> ls: cannot access bad2/32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3: No such file or directory > > ... > > If there are no problems reported by repair, then I suspect that > it's a terminal level problem... > Looking at this i remember having similar problems when my filesystems was mounted with inode64 before and after i left out that parameter. So Linda, could you re-try mounting the fs with "inode64". cheers, Michael From xfs@tlinx.org Tue Jun 29 18:58:34 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5TNwXVH098495 for ; Tue, 29 Jun 2010 18:58:34 -0500 X-ASG-Debug-ID: 1277856079-1b1001500000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from Ishtar.sc.tlinx.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 0E6FB419361 for ; Tue, 29 Jun 2010 17:01:19 -0700 (PDT) Received: from Ishtar.sc.tlinx.org (ishtar.tlinx.org [173.164.175.65]) by cuda.sgi.com with ESMTP id dLIVfh5HTHbEj4Yn for ; Tue, 29 Jun 2010 17:01:19 -0700 (PDT) Received: from [192.168.3.12] (Athenae [192.168.3.12]) by Ishtar.sc.tlinx.org (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5U01C01011282; Tue, 29 Jun 2010 17:01:14 -0700 Message-ID: <4C2A8948.3030008@tlinx.org> Date: Tue, 29 Jun 2010 17:01:12 -0700 From: "Linda A. Walsh" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.8.1.24) Gecko/20100228 Lightning/0.9 Thunderbird/2.0.0.24 Mnenhy/0.7.6.666 MIME-Version: 1.0 To: Dave Chinner , xfs-oss X-ASG-Orig-Subj: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ;-/ (was xfs_dump problem...) Subject: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ;-/ (was xfs_dump problem...) References: <4C26A51F.8020909@tlinx.org> <20100628022744.GX6590@dastard> <4C2A749E.4060006@tlinx.org> <20100629232532.GA24712@dastard> In-Reply-To: <20100629232532.GA24712@dastard> X-Stationery: 0.5.1 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Barracuda-Connect: ishtar.tlinx.org[173.164.175.65] X-Barracuda-Start-Time: 1277856080 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33945 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Dave Chinner wrote: --------------------------------------------------------------------------------------------------- >> Ishtar:/Torrents> 'ls' -ni bad* ls: cannot access bad/30-Omoide >> to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3: No such file or directory >> ls: cannot access bad/31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3: No such file or directory >> ls: cannot access bad/32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3: No such file or directory >> bad: >> total 0 >> 2359101 ?????????? ? ? ? ? ? 30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3 >> 2354946 ?????????? ? ? ? ? ? 31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3 >> 2354949 ?????????? ? ? ? ? ? 32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3 >> ls: cannot access bad2/30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3: No such file or directory >> ls: cannot access bad2/31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3: No such file or directory >> ls: cannot access bad2/32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3: No such file or directory > > Those file names have a weird character in them - are you sure that > the terminal supports that character set and is not mangling it and > hence not matching what is actually stored on disk? ----- Those files were 'fine' before today. I know it is not a terminal problem -- I told ls to list all files in the directory -- then it says "no such file". Can you say that "*" shouldn't match everything? Those question marks are in the place for the size! There are no weird characters in those file names. Here are the same files in another directory: mp3> ll 3* -rwx------ 1 3255702 2010-06-14 10:54 30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3* -rwx------ 1 3272004 2010-06-14 10:54 31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3* -rwx------ 1 3234876 2010-06-14 10:54 32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3* The fields it can't display are the file size, time and dates! The names display ok! How can file size, time and date be in unprintable characters that "ls" can't display? From SRS0+ZvxJ+30+fromorbit.com=david@internode.on.net Tue Jun 29 19:18:07 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5U0I7d7099097 for ; Tue, 29 Jun 2010 19:18:07 -0500 X-ASG-Debug-ID: 1277857248-1b1801df0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 19AE6419445 for ; Tue, 29 Jun 2010 17:20:49 -0700 (PDT) Received: from mail.internode.on.net (bld-mail19.adl2.internode.on.net [150.101.137.104]) by cuda.sgi.com with ESMTP id AmxsZJbP8U1KLbyr for ; Tue, 29 Jun 2010 17:20:49 -0700 (PDT) Received: from dastard (unverified [121.44.238.155]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 29589133-1927428 for multiple; Wed, 30 Jun 2010 09:50:45 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OTl2h-0006Un-7x; Wed, 30 Jun 2010 10:20:43 +1000 Date: Wed, 30 Jun 2010 10:20:43 +1000 From: Dave Chinner To: Christoph Hellwig Cc: Alex Elder , xfs@oss.sgi.com, linux-kernel@vger.kernel.org X-ASG-Orig-Subj: Re: [PATCH 00/15] xfs: minimize DMAPI footprint Subject: Re: [PATCH 00/15] xfs: minimize DMAPI footprint Message-ID: <20100630002043.GB24712@dastard> References: <1277762653.2040.554.camel@doink> <20100629075734.GA31118@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100629075734.GA31118@infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail19.adl2.internode.on.net[150.101.137.104] X-Barracuda-Start-Time: 1277857250 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33947 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 29, 2010 at 03:57:34AM -0400, Christoph Hellwig wrote: > > SGI has a product that uses the DMAPI support code that's > > included in mainline XFS, along with some additional code > > (the "never merged" stuff Christoph refers to) that we > > maintain separately. To our customers that need it, this > > is an extremely important feature. > > So why don't you bother to get HSM support upstream properly, > or at least maintain it somewhere where you can get at it? > What sourcxe tree do those important customers use it? > > > What follows is a set of patches that I think accomplishes > > these goals. The net result of these changes is: > > While this is a lot better than the old DMAPI supoort, it's still > lots of dead code in the mainline tree, that won't ever be used > there, as proper HSM suport if it ever was merged would sit at > the VFS layer. My question about the DMAPI hooks also still stands - if we leave the hooks in mainline, how are we supposed to test that they are still placed correctly for the out-of-tree patches to function correctly? I can't see that we can actually do this, so I question the value of even leaving minimal hooks in place.... > In addition to that the people who effectively maintain XFS for both > the community and lots of paying customers have done a large amount > of work ontop of the DMAPI removal of the last 1 1/2 month. So I'd > say rebase your changes over > > http://git.kernel.org/?p=linux/kernel/git/dgc/xfsdev.git;a=shortlog;h=refs/heads/for-2.6.36 > > and keep them in a separate branch dmapi-dev branch where SGI can pull > the code for it's customers from. This branch could also include the > actual dmapi code and core kernel modifications, so that people that > want dmapi support actually have chance to find a complete kernel tree > for it. This makes a lot of sense to me. I'd prefer an all-or-nothing approach to supporting DMAPI (and any other out-of-tree enabling functionality for that matter) and putting it all in separate branch would give us both all and nothing. ;) It would also help us test the DMAPI infrastructure without needing a HSM as the xfsqa test suite does a pretty good job of testing it. And, of course, we could also help clean it up if it is testable. As such, I'd be quite happy to maintain a dmapi-dev branch in the above repo if the eventual goal is to try to move the code towards being more acceptible for mainline inclusion.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From xfs@tlinx.org Tue Jun 29 19:39:25 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5U0dPeE099654 for ; Tue, 29 Jun 2010 19:39:25 -0500 X-ASG-Debug-ID: 1277858822-70a503df0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from Ishtar.sc.tlinx.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 043031171CC7 for ; Tue, 29 Jun 2010 17:47:02 -0700 (PDT) Received: from Ishtar.sc.tlinx.org (ishtar.tlinx.org [173.164.175.65]) by cuda.sgi.com with ESMTP id RzAEXgkwFhHuV2BR for ; Tue, 29 Jun 2010 17:47:02 -0700 (PDT) Received: from [192.168.3.12] (Athenae [192.168.3.12]) by Ishtar.sc.tlinx.org (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5U0g2Ue012480; Tue, 29 Jun 2010 17:42:04 -0700 Message-ID: <4C2A92DA.1020202@tlinx.org> Date: Tue, 29 Jun 2010 17:42:02 -0700 From: "Linda A. Walsh" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.8.1.24) Gecko/20100228 Lightning/0.9 Thunderbird/2.0.0.24 Mnenhy/0.7.6.666 MIME-Version: 1.0 To: Michael Weissenbacher , xfs-oss X-ASG-Orig-Subj: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ;-/ (was xfs_dump problem...) Subject: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ;-/ (was xfs_dump problem...) References: <4C26A51F.8020909@tlinx.org> <20100628022744.GX6590@dastard> <4C2A749E.4060006@tlinx.org> <20100629232532.GA24712@dastard> <4C2A87FF.7090804@dermichi.com> In-Reply-To: <4C2A87FF.7090804@dermichi.com> X-Stationery: 0.5.1 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Barracuda-Connect: ishtar.tlinx.org[173.164.175.65] X-Barracuda-Start-Time: 1277858823 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33948 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Michael Weissenbacher wrote: > Hi! >>> 2359101 ?????????? ? ? ? ? ? 30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3 >>> 2354946 ?????????? ? ? ? ? ? 31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3 >>> 2354949 ?????????? ? ? ? ? ? 32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3 >>> ls: cannot access bad2/30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3: No such file or directory >>> ls: cannot access bad2/31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3: No such file or directory >>> ls: cannot access bad2/32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3: No such file or directory >> ... >> >> If there are no problems reported by repair, then I suspect that >> it's a terminal level problem... >> > Looking at this i remember having similar problems when my filesystems > was mounted with inode64 before and after i left out that parameter. So > Linda, could you re-try mounting the fs with "inode64". ---- I ran into that before as well -- already tried Notice the listing you see is the output of "ls -in". Those numbers are the inodes. ...HEY, wait. When do you need 64-bit inodes? The dump size said it was: xfsdump: estimated dump size: 2360915740992 bytes It's getting right near to overflowing a 32-bit integer. Do I need >32 bit inodes if the filesystem size is > 2T? I'm guessing the file system just recently passed the 2G mark. Note -- I DID try the inode64 mount option -- it made no difference. But if you need 64-bit inodes for file systems > 2T file systems, then shouldn't I have gotten some error rather than it eating files for lunch? The inode numbers themselves, are not even close to being over 32bits. Sigh... From SRS0++WWN+30+fromorbit.com=david@internode.on.net Tue Jun 29 20:03:40 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5U13eTL100408 for ; Tue, 29 Jun 2010 20:03:40 -0500 X-ASG-Debug-ID: 1277859984-145200a50000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 872EB1574B67 for ; Tue, 29 Jun 2010 18:06:25 -0700 (PDT) Received: from mail.internode.on.net (bld-mail15.adl6.internode.on.net [150.101.137.100]) by cuda.sgi.com with ESMTP id USTMjGcUYSrRAIIn for ; Tue, 29 Jun 2010 18:06:25 -0700 (PDT) Received: from dastard (unverified [121.44.238.155]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 18132966-1927428 for multiple; Wed, 30 Jun 2010 10:36:24 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OTlks-0006XS-57; Wed, 30 Jun 2010 11:06:22 +1000 Date: Wed, 30 Jun 2010 11:06:22 +1000 From: Dave Chinner To: "Linda A. Walsh" Cc: xfs-oss X-ASG-Orig-Subj: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ;-/ (was xfs_dump problem...) Subject: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ;-/ (was xfs_dump problem...) Message-ID: <20100630010622.GC24712@dastard> References: <4C26A51F.8020909@tlinx.org> <20100628022744.GX6590@dastard> <4C2A749E.4060006@tlinx.org> <20100629232532.GA24712@dastard> <4C2A8948.3030008@tlinx.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <4C2A8948.3030008@tlinx.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail15.adl6.internode.on.net[150.101.137.100] X-Barracuda-Start-Time: 1277859986 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33949 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 29, 2010 at 05:01:12PM -0700, Linda A. Walsh wrote: > > > Dave Chinner wrote: > --------------------------------------------------------------------------------------------------- > >>Ishtar:/Torrents> 'ls' -ni bad* ls: cannot access bad/30-Omoide > >>to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3: No such file or directory > >>ls: cannot access bad/31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3: No such file or directory > >>ls: cannot access bad/32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3: No such file or directory > >>bad: > >>total 0 > >>2359101 ?????????? ? ? ? ? ? 30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3 > >>2354946 ?????????? ? ? ? ? ? 31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3 > >>2354949 ?????????? ? ? ? ? ? 32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3 > >>ls: cannot access bad2/30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3: No such file or directory > >>ls: cannot access bad2/31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3: No such file or directory > >>ls: cannot access bad2/32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3: No such file or directory > > > >Those file names have a weird character in them - are you sure that > >the terminal supports that character set and is not mangling it and > >hence not matching what is actually stored on disk? > ----- > Those files were 'fine' before today. > > I know it is not a terminal problem -- > I told ls to list all files in the directory -- then it says "no such file". > > Can you say that "*" shouldn't match everything? > > Those question marks are in the place for the size! > > There are no weird characters in those file names. I beg to differ ;) > Here are the same files in another directory: > mp3> ll 3* > -rwx------ 1 3255702 2010-06-14 10:54 30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3* > -rwx------ 1 3272004 2010-06-14 10:54 31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3* > -rwx------ 1 3234876 2010-06-14 10:54 32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3* ^^^ That character is a non-ascii character, which is why I was wondering about terminals and character sets. It does not display correctly in mutt (a bold vertical bar) or Vim (a dotted, double character width square) using LANG=en_AU.UTF-8 here.... > The fields it can't display are the file size, time and dates! Yes, I know. To stat a file to get that infomration first you have to open it and that requires getting the file name exactly right. If you try to open a file encoded with one language setting/character set and then decode and re-encode it with another, the raw filename data will be different to what is on disk. Hence when I see filenames with unprintable characters in the mail, it's always worth checking first... > How can file size, time and date be in unprintable characters that "ls" can't display? They aren't. They are printed as ??? because the stat failed and hence they are unknown. Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0++WWN+30+fromorbit.com=david@internode.on.net Tue Jun 29 20:14:05 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5U1E5fp100694 for ; Tue, 29 Jun 2010 20:14:05 -0500 X-ASG-Debug-ID: 1277860610-1b2903a70000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id D2B33419722 for ; Tue, 29 Jun 2010 18:16:50 -0700 (PDT) Received: from mail.internode.on.net (bld-mail14.adl6.internode.on.net [150.101.137.99]) by cuda.sgi.com with ESMTP id THPkRHw1LSkjsZMO for ; Tue, 29 Jun 2010 18:16:50 -0700 (PDT) Received: from dastard (unverified [121.44.238.155]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 30027875-1927428 for multiple; Wed, 30 Jun 2010 10:46:49 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OTlux-0006Yk-Gp; Wed, 30 Jun 2010 11:16:47 +1000 Date: Wed, 30 Jun 2010 11:16:47 +1000 From: Dave Chinner To: "Linda A. Walsh" Cc: Michael Weissenbacher , xfs-oss X-ASG-Orig-Subj: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ; -/ (was xfs_dump problem...) Subject: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ; -/ (was xfs_dump problem...) Message-ID: <20100630011647.GD24712@dastard> References: <4C26A51F.8020909@tlinx.org> <20100628022744.GX6590@dastard> <4C2A749E.4060006@tlinx.org> <20100629232532.GA24712@dastard> <4C2A87FF.7090804@dermichi.com> <4C2A92DA.1020202@tlinx.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C2A92DA.1020202@tlinx.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail14.adl6.internode.on.net[150.101.137.99] X-Barracuda-Start-Time: 1277860611 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0001 1.0000 -2.0206 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33949 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Tue, Jun 29, 2010 at 05:42:02PM -0700, Linda A. Walsh wrote: > Do I need >32 bit inodes if the filesystem size is > 2T? No. inode64 is recommended for multi-terabyte filesystems, but is not mandatory. Cheers, Dave. -- Dave Chinner david@fromorbit.com From xfs@tlinx.org Tue Jun 29 20:50:10 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5U1o97Q101985 for ; Tue, 29 Jun 2010 20:50:09 -0500 X-ASG-Debug-ID: 1277862774-2ec701100000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from Ishtar.sc.tlinx.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 31DDC1574BA1 for ; Tue, 29 Jun 2010 18:52:54 -0700 (PDT) Received: from Ishtar.sc.tlinx.org (ishtar.tlinx.org [173.164.175.65]) by cuda.sgi.com with ESMTP id teZ8SibGxTmdk8Ht for ; Tue, 29 Jun 2010 18:52:54 -0700 (PDT) Received: from [192.168.3.12] (Athenae [192.168.3.12]) by Ishtar.sc.tlinx.org (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5U1ql5I013999; Tue, 29 Jun 2010 18:52:49 -0700 Message-ID: <4C2AA36F.2070905@tlinx.org> Date: Tue, 29 Jun 2010 18:52:47 -0700 From: "Linda A. Walsh" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.8.1.24) Gecko/20100228 Lightning/0.9 Thunderbird/2.0.0.24 Mnenhy/0.7.6.666 MIME-Version: 1.0 To: Dave Chinner CC: xfs-oss X-ASG-Orig-Subj: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ;-/ (was xfs_dump problem...) Subject: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ;-/ (was xfs_dump problem...) References: <4C26A51F.8020909@tlinx.org> <20100628022744.GX6590@dastard> <4C2A749E.4060006@tlinx.org> <20100629232532.GA24712@dastard> <4C2A8948.3030008@tlinx.org> <20100630010622.GC24712@dastard> In-Reply-To: <20100630010622.GC24712@dastard> X-Stationery: 0.5.1 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Barracuda-Connect: ishtar.tlinx.org[173.164.175.65] X-Barracuda-Start-Time: 1277862775 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33953 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Dave Chinner wrote: > On Tue, Jun 29, 2010 at 05:01:12PM -0700, Linda A. Walsh wrote: >> >> Dave Chinner wrote: >> --------------------------------------------------------------------------------------------------- >>>> Ishtar:/Torrents> 'ls' -ni bad* ls: cannot access bad/30-Omoide >>>> to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3: No such file or directory >>>> ls: cannot access bad/31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3: No such file or directory >>>> ls: cannot access bad/32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3: No such file or directory >>>> bad: >>>> total 0 >>>> 2359101 ?????????? ? ? ? ? ? 30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3 >>>> 2354946 ?????????? ? ? ? ? ? 31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3 >>>> 2354949 ?????????? ? ? ? ? ? 32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3 >>>> ls: cannot access bad2/30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3: No such file or directory >>>> ls: cannot access bad2/31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3: No such file or directory >>>> ls: cannot access bad2/32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3: No such file or directory >>> Those file names have a weird character in them - are you sure that >>> the terminal supports that character set and is not mangling it and >>> hence not matching what is actually stored on disk? >> ----- >> Those files were 'fine' before today. >> >> I know it is not a terminal problem -- >> I told ls to list all files in the directory -- then it says "no such file". >> >> Can you say that "*" shouldn't match everything? >> >> Those question marks are in the place for the size! >> >> There are no weird characters in those file names. > > I beg to differ ;) ---- They are standard UTF-8 characters! What's weird about them?!? Next you'll be complaining about my hair style... ;). > >> Here are the same files in another directory: >> mp3> ll 3* >> -rwx------ 1 3255702 2010-06-14 10:54 30-Omoide to Yakusoku (TV saizu｜Reinaʼs Ver.).mp3* >> -rwx------ 1 3272004 2010-06-14 10:54 31-Omoide to Yakusoku (TV saizu｜Tomoeʼs Ver.).mp3* >> -rwx------ 1 3234876 2010-06-14 10:54 32-Omoide to Yakusoku (TV saizu｜Nanualʼs Ver.).mp3* > ^^^ > That character is a non-ascii character, which is why I was > wondering about terminals and character sets. It does not display > correctly in mutt (a bold vertical bar) or Vim (a dotted, double > character width square) using LANG=en_AU.UTF-8 here.... ---- you don't have the right font for your Vim. :-) I use vim here and it displays in the TTY version, the X version and even the windows version! Anyway -- as you can see above, the files display fine in another directory with the same character. IT's not the vertical bar char. I use UTF-8 characters all over the place -- I created that file manually. Go get 'Bablemap'. It's free (well donation requested) from http://www.babelstone.co.uk/Software/BabelMap.html. My systems handle them 'fine'. That's not the problem here. I have 3 directories that all have copies of files 30-32 in them that are corrupt. I have another directory "Shakugan no Shana II OST", that I can't cd into or ls. Just says 'not found'. This all happened today. They were accessible before today. I'm not sure what changed, other than new files were added. > >> How can file size, time and date be in unprintable characters that "ls" can't display? > > They aren't. They are printed as ??? because the stat failed and > hence they are unknown. ---- Ok, why would the stat fail? There's nothing magical about a 2TB limit? (sigh...) Ideas? Linda From xfs@tlinx.org Tue Jun 29 21:42:38 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.9 required=5.0 tests=BAYES_50,J_CHICKENPOX_45 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5U2gcvr104099 for ; Tue, 29 Jun 2010 21:42:38 -0500 X-ASG-Debug-ID: 1277865923-25f100a40000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from Ishtar.sc.tlinx.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 4AFB1417719 for ; Tue, 29 Jun 2010 19:45:23 -0700 (PDT) Received: from Ishtar.sc.tlinx.org (ishtar.tlinx.org [173.164.175.65]) by cuda.sgi.com with ESMTP id Cw9PoKM3bDGEDiGt for ; Tue, 29 Jun 2010 19:45:23 -0700 (PDT) Received: from [192.168.3.12] (Athenae [192.168.3.12]) by Ishtar.sc.tlinx.org (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5U2jKkr015444 for ; Tue, 29 Jun 2010 19:45:23 -0700 Message-ID: <4C2AAFC1.9080708@tlinx.org> Date: Tue, 29 Jun 2010 19:45:21 -0700 From: "Linda A. Walsh" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.8.1.24) Gecko/20100228 Lightning/0.9 Thunderbird/2.0.0.24 Mnenhy/0.7.6.666 MIME-Version: 1.0 To: xfs-oss X-ASG-Orig-Subj: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ; -/ (was xfs_dump problem...) Subject: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ; -/ (was xfs_dump problem...) References: <4C26A51F.8020909@tlinx.org> <20100628022744.GX6590@dastard> <4C2A749E.4060006@tlinx.org> <20100629232532.GA24712@dastard> <4C2A87FF.7090804@dermichi.com> <4C2A92DA.1020202@tlinx.org> <20100630011647.GD24712@dastard> In-Reply-To: <20100630011647.GD24712@dastard> X-Stationery: 0.5.1 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Barracuda-Connect: ishtar.tlinx.org[173.164.175.65] X-Barracuda-Start-Time: 1277865924 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.52 X-Barracuda-Spam-Status: No, SCORE=-1.52 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_RULE7568M X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33955 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.50 BSF_RULE7568M Custom Rule 7568M X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean To make matters more interesting -- xfsdump can't access a couple of files and a directory or two. It thinks they are 'stale NFS handles' (I'm not running any NFS file systems). in @ 0.0 kB/s, out @ 0.0 kB/s, 0.0 kB total, buffer 0% fullxfsdump: WARNING: unable to open directory: ino 2082342: Stale NFS file handle xfsdump: WARNING: unable to open directory: ino 2082343: Stale NFS file handle in @ 4079 kB/s, out @ 4079 kB/s, 2040 kB total, buffer 0% fullxfsdump: dumping non-directory files in @ 68.0 MB/s, out @ 68.0 MB/s, 1209 GB total, buffer 0% fullll in @ 107 MB/s, out @ 105 MB/s, 2200 GB total, buffer 0% fullxfsdump: ending media file xfsdump: media file size 2362017678616 bytes xfsdump: dump size (non-dir files) : 2361953613176 bytes xfsdump: dump complete: 10926 seconds elapsed xfsdump: Dump Status: SUCCESS Running xfs_db on the file system (finished dumping) a block get returns: dir 1133368 block 0 extra leaf entry 5438b33d 79 dir 1133368 block 0 extra leaf entry 6624beba 71 dir 1133368 block 0 extra leaf entry 6d832f88 69 dir 1133368 block 0 extra leaf entry e6279e2d 80 dir ino 1133368 missing leaf entry for e627de2d/80 dir ino 1133368 missing leaf entry for 7624beba/71 dir ino 1133368 missing leaf entry for 5418b33d/79 dir ino 1133368 missing leaf entry for 6d832f80/69 dir 1134347 block 0 extra leaf entry 3907754f 4e dir 1134347 block 0 extra leaf entry 3cae5257 47 dir 1134347 block 0 extra leaf entry 6e3a4cfb 40 dir ino 1134347 missing leaf entry for 6e38ccfb/40 dir ino 1134347 missing leaf entry for 3905f54f/4e dir ino 1134347 missing leaf entry for 3cacd257/47 dir 1149453 block 0 extra leaf entry 190f789f 7d dir ino 1149453 missing leaf entry for 190b78df/7d dir 1193988 block 0 extra leaf entry 8f2b7b0c 80 dir ino 1193988 missing leaf entry for 8d2b7b0c/80 dir 2098474 block 0 extra leaf entry 891d210e b5 dir ino 2098474 missing leaf entry for 891d200f/b5 dir 2103050 block 0 extra leaf entry 3c8b96be 79 dir ino 2103050 missing leaf entry for 3c8b96ae/79 dir 2106377 block 0 extra leaf entry 6554830e 185 dir 2106377 block 0 extra leaf entry 8265fcda 173 dir 2106377 block 0 extra leaf entry b251fcda 17f dir 2106377 block 0 extra leaf entry b687730b 179 dir ino 2106377 missing leaf entry for 8265fcd2/173 dir ino 2106377 missing leaf entry for b251fcd2/17f dir ino 2106377 missing leaf entry for b687734b/179 dir ino 2106377 missing leaf entry for 6554c31e/185 dir 2107395 block 0 extra leaf entry 207fea65 ff dir 2107395 block 0 extra leaf entry dd1d75a2 f8 dir ino 2107395 missing leaf entry for df1d75a2/f8 dir ino 2107395 missing leaf entry for 206fea65/ff dir 2215937 block 0 extra leaf entry 1d5bcd6d 3a dir 2215937 block 0 extra leaf entry 9c82da3c 9c dir 2215937 block 0 extra leaf entry ff88d238 a4 dir ino 2215937 missing leaf entry for 1f5bcd6d/3a dir ino 2215937 missing leaf entry for fd88d238/a4 dir ino 2215937 missing leaf entry for 9e82da3c/9c dir 2218278 block 0 extra leaf entry 1d5bcd6d 3a dir 2218278 block 0 extra leaf entry 9c82da3c 9c dir 2218278 block 0 extra leaf entry ff88d238 a4 dir ino 2218278 missing leaf entry for 1f5bcd6d/3a dir ino 2218278 missing leaf entry for fd88d238/a4 dir ino 2218278 missing leaf entry for 9e82da3c/9c dir 2241309 block 0 extra leaf entry 51ae209 39 dir 2241309 block 0 extra leaf entry b5c3baca 32 dir ino 2241309 missing leaf entry for 5186209/39 dir ino 2241309 missing leaf entry for b5c13aca/32 dir 2291983 block 0 extra leaf entry 16650e73 117 dir 2291983 block 0 extra leaf entry 355a317c 112 dir 2291983 block 0 extra leaf entry 47464246 ee dir 2291983 block 0 extra leaf entry 620ec6fb 109 dir 2291983 block 0 extra leaf entry 62170366 e7 dir 2291983 block 0 extra leaf entry 73c17bba 10d dir 2291983 block 0 extra leaf entry 747a8790 e2 dir 2291983 block 0 extra leaf entry 894504e3 ff dir 2291983 block 0 extra leaf entry b17d4203 11c dir 2291983 block 0 extra leaf entry d12c165b 105 dir 2291983 block 0 extra leaf entry d33f483d fb dir 2291983 block 0 extra leaf entry e28ebb3b f2 dir 2291983 block 0 extra leaf entry f9f9b6d1 f6 dir ino 2291983 missing leaf entry for 8b4504e3/ff dir ino 2291983 missing leaf entry for d33f48ad/fb dir ino 2291983 missing leaf entry for 375a317c/112 dir ino 2291983 missing leaf entry for e9f9bed1/f6 dir ino 2291983 missing leaf entry for 45464246/ee dir ino 2291983 missing leaf entry for 71c17bba/10d dir ino 2291983 missing leaf entry for b13d4203/11c dir ino 2291983 missing leaf entry for 745a8790/e2 dir ino 2291983 missing leaf entry for 16650e63/117 dir ino 2291983 missing leaf entry for e21f0366/e7 dir ino 2291983 missing leaf entry for e08ebb2b/f2 dir ino 2291983 missing leaf entry for d12896db/105 dir ino 2291983 missing leaf entry for 620ec6eb/109 xfs_repair -n now shows: Phase 1 - find and verify superblock... Phase 2 - using internal log - scan filesystem freespace and inode maps... - found root inode chunk Phase 3 - for each AG... - scan (but don't clear) agi unlinked lists... - process known inodes and perform inode discovery... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - agno = 4 - agno = 5 - process newly discovered inodes... Phase 4 - check for duplicate blocks... - setting up duplicate extent list... - check for inodes claiming duplicate blocks... - agno = 2 - agno = 1 - agno = 0 - agno = 5 - agno = 4 - agno = 3 No modify flag set, skipping phase 5 Phase 6 - check inode connectivity... - traversing filesystem ... entry "10 Otome ha DO MY BEST desho¿ (off vocal).flac" (ino 2359102) in dir 1133368 is a duplicate name, would junk entry entry "06 Otome ha DO MY BEST desho¿ Otome ver..flac" (ino 2359100) in dir 1133368 is a duplicate name, would junk entry entry "05 Otome ha DO MY BEST desho¿ Hime ver..flac" (ino 2359099) in dir 1133368 is a duplicate name, would junk entry entry "04 Otome ha DO MY BEST desho¿ 2007ver..flac" (ino 2359086) in dir 1133368 is a duplicate name, would junk entry entry "04 Finality blue «instrumental».flac" (ino 2220801) in dir 1134347 is a duplicate name, would junk entry entry "06 Koko ni Atta ne «instrumental».flac" (ino 2220800) in dir 1134347 is a duplicate name, would junk entry entry "05 Heart All Green «instrumental».flac" (ino 2359103) in dir 1134347 is a duplicate name, would junk entry entry "01_Tenkai Hen Josô e no Zensô Kyoku.mp3" (ino 2359093) in dir 1149453 is a duplicate name, would junk entry entry "01 Träumerei.flac" (ino 2359098) in dir 1193988 is a duplicate name, would junk entry entry "16 - Pretty Guardian Sailor Moon - Kiss!² Bang!².ogg" (ino 2359097) in dir 2098474 is a duplicate name, would junk entry entry "03 Broken MÖBIUS.ogg" (ino 2359094) in dir 2103050 is a duplicate name, would junk entry entry "14 - Broken MÖBIUS Henkei A.ogg" (ino 2359095) in dir 2106377 is a duplicate name, would junk entry entry "27 - Shin·Henshin Sailormoon.ogg" (ino 2359092) in dir 2106377 is a duplicate name, would junk entry entry "19 - Broken MÖBIUS Henkei B.ogg" (ino 2359088) in dir 2106377 is a duplicate name, would junk entry entry "06 - GURU·GURU·GURA.ogg" (ino 2359089) in dir 2106377 is a duplicate name, would junk entry entry "35 Ankoku no Uranai Noshi · Lilith.ogg" (ino 2359091) in dir 2107395 is a duplicate name, would junk entry entry "17 Kaguya Shima·Mukashi Mono Gatarii.ogg" (ino 2359087) in dir 2107395 is a duplicate name, would junk entry bad hash table for directory inode 2215937 (hash value mismatch): would rebuild bad hash table for directory inode 2218278 (hash value mismatch): would rebuild entry "03 Free and Dream «Instrumental».flac" (ino 2359090) in dir 2241309 is a duplicate name, would junk entry entry "04 Asu he -Sorairo no Tegami- «Instrumental».flac" (ino 2359096) in dir 2241309 is a duplicate name, would junk entry entry "18 Rafraîchissement.flac" (ino 2359085) in dir 2291983 is a duplicate name, would junk entry entry "17 Différent malgré la ressemblance.flac" (ino 2218273) in dir 2291983 is a duplicate name, would junk entry entry "09 Sincèrement.flac" (ino 2218271) in dir 2291983 is a duplicate name, would junk entry entry "15 Déjà Vu.flac" (ino 2218276) in dir 2291983 is a duplicate name, would junk entry entry "20 Fête d'école.flac" (ino 2218275) in dir 2291983 is a duplicate name, would junk entry entry "12 Péripétie.flac" (ino 2218270) in dir 2291983 is a duplicate name, would junk entry entry "27 Lieu de la bataille décisive.flac" (ino 2218272) in dir 2291983 is a duplicate name, would junk entry entry "06 Sérénité.flac" (ino 2218274) in dir 2291983 is a duplicate name, would junk entry entry "04 Tragédie.flac" (ino 2218266) in dir 2291983 is a duplicate name, would junk entry entry "25 Serment éternel.flac" (ino 2218268) in dir 2291983 is a duplicate name, would junk entry entry "16 Force étrange.flac" (ino 2218277) in dir 2291983 is a duplicate name, would junk entry entry "28 Manoeuvres secrètes.flac" (ino 2218269) in dir 2291983 is a duplicate name, would junk entry entry "26 Jours passés.flac" (ino 2218267) in dir 2291983 is a duplicate name, would junk entry - traversal finished ... - moving disconnected inodes to lost+found ... disconnected inode 2218266, would move to lost+found disconnected inode 2218267, would move to lost+found disconnected inode 2218268, would move to lost+found disconnected inode 2218269, would move to lost+found disconnected inode 2218270, would move to lost+found disconnected inode 2218271, would move to lost+found disconnected inode 2218272, would move to lost+found disconnected inode 2218273, would move to lost+found disconnected inode 2218274, would move to lost+found disconnected inode 2218275, would move to lost+found disconnected inode 2218276, would move to lost+found disconnected inode 2218277, would move to lost+found disconnected inode 2220800, would move to lost+found disconnected inode 2220801, would move to lost+found disconnected inode 2359085, would move to lost+found disconnected inode 2359086, would move to lost+found disconnected inode 2359087, would move to lost+found disconnected inode 2359088, would move to lost+found disconnected inode 2359089, would move to lost+found disconnected inode 2359090, would move to lost+found disconnected inode 2359091, would move to lost+found disconnected inode 2359092, would move to lost+found disconnected inode 2359093, would move to lost+found disconnected inode 2359094, would move to lost+found disconnected inode 2359095, would move to lost+found disconnected inode 2359096, would move to lost+found disconnected inode 2359097, would move to lost+found disconnected inode 2359098, would move to lost+found disconnected inode 2359099, would move to lost+found disconnected inode 2359100, would move to lost+found disconnected inode 2359102, would move to lost+found disconnected inode 2359103, would move to lost+found Phase 7 - verify link counts... No modify flag set, skipping filesystem flush and exiting. ------------- This isn't going to help to repair it though -- I repaired it this morning and it showed up as fine! Then all of the above happened today! It would appear that 2.6.34 might have some problems in it? -linda From xfs@tlinx.org Wed Jun 30 07:23:24 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5UCNOMI128216 for ; Wed, 30 Jun 2010 07:23:24 -0500 X-ASG-Debug-ID: 1277900769-577c00390000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from Ishtar.sc.tlinx.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 6987D1579A61 for ; Wed, 30 Jun 2010 05:26:09 -0700 (PDT) Received: from Ishtar.sc.tlinx.org (ishtar.tlinx.org [173.164.175.65]) by cuda.sgi.com with ESMTP id IPeavgaLP5sR2K74 for ; Wed, 30 Jun 2010 05:26:09 -0700 (PDT) Received: from [192.168.3.12] (Athenae [192.168.3.12]) by Ishtar.sc.tlinx.org (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5UCPwr7010942 for ; Wed, 30 Jun 2010 05:26:00 -0700 Message-ID: <4C2B37D6.50801@tlinx.org> Date: Wed, 30 Jun 2010 05:25:58 -0700 From: "Linda A. Walsh" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.8.1.24) Gecko/20100228 Lightning/0.9 Thunderbird/2.0.0.24 Mnenhy/0.7.6.666 MIME-Version: 1.0 To: xfs-oss X-ASG-Orig-Subj: When it rains it pours.... Subject: When it rains it pours.... X-Stationery: 0.5.1 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: ishtar.tlinx.org[173.164.175.65] X-Barracuda-Start-Time: 1277900770 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0008 1.0000 -2.0159 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.33995 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Due to another bug in lvm, my restore of this partition crashed after running a few hours (takes alot longer to restore than to backup). So I decided to use the "-R" option to Resume my previously left off dump: # xfsrestore -R -p 180 -f /backups/Ishtar/torrents/torrents-100629-0-1611.dump . xfsrestore: using file dump (drive_simple) strategy xfsrestore: version 3.0.4 (dump format 3.0) - Running single-threaded xfsrestore: resuming restore previously begun Wed Jun 30 04:41:57 2010 xfsrestore: examining media file 0 xfsrestore: seeking past portion of media file already restored Looks good so far!..Yup, and.. xfsrestore: drive_simple.c:770: do_seek_mark: Assertion `nreadneeded64 <= ( ( intgen_t ) ( ( ( 1ull << ( ( unsigned long long )sizeof( intgen_t ) * ( unsigned long long )8 - ( 1ull + 1ull ))) - 1ull ) * 2ull + 1ull ))' failed. Aborted (core dumped) Say what? Um...is that supposed to be an error message? Why can't it just tell me why "'nreadneeded64' > 0xbfffffffffffffd" is 'bad', or what it means? I have a feeling that the 'core dumped' message means that if I want my filesystem restored in the near future, I should just restart... *sigh* -l From xfs@tlinx.org Wed Jun 30 11:18:28 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5UGISSk135722 for ; Wed, 30 Jun 2010 11:18:28 -0500 X-ASG-Debug-ID: 1277914873-0eea02970000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from Ishtar.sc.tlinx.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 997E841BC02 for ; Wed, 30 Jun 2010 09:21:14 -0700 (PDT) Received: from Ishtar.sc.tlinx.org (ishtar.tlinx.org [173.164.175.65]) by cuda.sgi.com with ESMTP id FKpx2AFxUOisv7wc for ; Wed, 30 Jun 2010 09:21:14 -0700 (PDT) Received: from [192.168.3.12] (Athenae [192.168.3.12]) by Ishtar.sc.tlinx.org (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5UGL23k018089 for ; Wed, 30 Jun 2010 09:21:04 -0700 Message-ID: <4C2B6EEE.5050103@tlinx.org> Date: Wed, 30 Jun 2010 09:21:02 -0700 From: "Linda A. Walsh" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.8.1.24) Gecko/20100228 Lightning/0.9 Thunderbird/2.0.0.24 Mnenhy/0.7.6.666 MIME-Version: 1.0 To: xfs-oss X-ASG-Orig-Subj: xfs_restore -R -- recovering a previous restore...does it work? Subject: xfs_restore -R -- recovering a previous restore...does it work? References: <4C2B37D6.50801@tlinx.org> In-Reply-To: <4C2B37D6.50801@tlinx.org> X-Stationery: 0.5.1 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: ishtar.tlinx.org[173.164.175.65] X-Barracuda-Start-Time: 1277914874 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.34011 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean So why is this crashing? I just had it happen again -- something killed off the window it was executing in -- system didn't go down, but it got a hangup -- a cleaner shutdown -- but it still doesn't recover. Under what circumstances should this work? Or does it work? Linda A. Walsh wrote: > Due to another bug in lvm, my restore of this partition crashed after running a few > hours (takes alot longer to restore than to backup). > > So I decided to use the "-R" option to Resume my previously left off dump: > > # xfsrestore -R -p 180 -f /backups/Ishtar/torrents/torrents-100629-0-1611.dump . > xfsrestore: using file dump (drive_simple) strategy > xfsrestore: version 3.0.4 (dump format 3.0) - Running single-threaded > xfsrestore: resuming restore previously begun Wed Jun 30 04:41:57 2010 > xfsrestore: examining media file 0 > xfsrestore: seeking past portion of media file already restored > > Looks good so far!..Yup, and.. > > xfsrestore: drive_simple.c:770: do_seek_mark: Assertion `nreadneeded64 <= ( ( intgen_t ) ( ( ( 1ull << ( ( unsigned long long )sizeof( intgen_t ) * ( unsigned long long )8 - ( 1ull + 1ull ))) - 1ull ) * 2ull + 1ull ))' failed. > Aborted (core dumped) > > > Say what? Um...is that supposed to be an error message? > > Why can't it just tell me why "'nreadneeded64' > 0xbfffffffffffffd" > is 'bad', or what it means? > > I have a feeling that the 'core dumped' message means that > if I want my filesystem restored in the near future, I should > just restart... > > *sigh* > -l > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From xfs@tlinx.org Wed Jun 30 12:49:23 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5UHnMB1138852 for ; Wed, 30 Jun 2010 12:49:22 -0500 X-ASG-Debug-ID: 1277920623-41b302440000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from Ishtar.sc.tlinx.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 681EE14B3C25 for ; Wed, 30 Jun 2010 10:57:04 -0700 (PDT) Received: from Ishtar.sc.tlinx.org (ishtar.tlinx.org [173.164.175.65]) by cuda.sgi.com with ESMTP id RXuebcyXp6TlI9bz for ; Wed, 30 Jun 2010 10:57:04 -0700 (PDT) Received: from [192.168.3.12] (Athenae [192.168.3.12]) by Ishtar.sc.tlinx.org (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5UHpxb4020203; Wed, 30 Jun 2010 10:52:02 -0700 Message-ID: <4C2B8440.5030503@tlinx.org> Date: Wed, 30 Jun 2010 10:52:00 -0700 From: "Linda A. Walsh" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.8.1.24) Gecko/20100228 Lightning/0.9 Thunderbird/2.0.0.24 Mnenhy/0.7.6.666 MIME-Version: 1.0 To: Chris Wedgwood CC: xfs-oss X-ASG-Orig-Subj: Re: xfs_restore -R -- recovering a previous restore...does it work? Subject: Re: xfs_restore -R -- recovering a previous restore...does it work? References: <4C2B37D6.50801@tlinx.org> <4C2B6EEE.5050103@tlinx.org> <20100630172750.GA20764@puku.stupidest.org> In-Reply-To: <20100630172750.GA20764@puku.stupidest.org> X-Stationery: 0.5.1 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: ishtar.tlinx.org[173.164.175.65] X-Barracuda-Start-Time: 1277920624 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.34016 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Dmesg shows nothing revealing. I am not using tape -- I'm restoring from a file. Does it only work with tapes? I didn't recall it saying so. -l Chris Wedgwood wrote: > On Wed, Jun 30, 2010 at 09:21:02AM -0700, Linda A. Walsh wrote: > >> I just had it happen again -- something killed off the window it was >> executing in -- system didn't go down, but it got a hangup -- a >> cleaner shutdown -- but it still doesn't recover. > > dmesg ... > > see anything? > >> Under what circumstances should this work? Or does it work? > > it used to work for me, i've not tried it recently though, i basically > gave up tapes (and xfsdump/restore) some time back due to size/cost > contraints ---- Do you not keep backups at all anymore? Or if you do, do you not care about the metastuff? Only other backup util, that I know of, that speaks meta, is 'star'. From michael.monnerie@is.it-management.at Wed Jun 30 13:22:39 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_45 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5UIMcXw140231 for ; Wed, 30 Jun 2010 13:22:39 -0500 X-ASG-Debug-ID: 1277922617-419203250000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 4249C15AC0F7 for ; Wed, 30 Jun 2010 11:30:18 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id ln8mCjJFzGsvnzhZ for ; Wed, 30 Jun 2010 11:30:18 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id 37B65705 for ; Wed, 30 Jun 2010 20:25:21 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id 1466083C821 for ; Wed, 30 Jun 2010 20:24:50 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ; -/ (was xfs_dump problem...) Subject: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ; -/ (was xfs_dump problem...) Date: Wed, 30 Jun 2010 20:25:20 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) References: <4C26A51F.8020909@tlinx.org> <20100628022744.GX6590@dastard> <4C2A749E.4060006@tlinx.org> In-Reply-To: <4C2A749E.4060006@tlinx.org> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart4264842.0mvYMLhAeJ"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201006302025.20289@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1277922619 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.34018 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart4264842.0mvYMLhAeJ Content-Type: multipart/mixed; boundary="Boundary-01=_Qw4KMswcb0uhpR9" Content-Transfer-Encoding: 7bit --Boundary-01=_Qw4KMswcb0uhpR9 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Mittwoch, 30. Juni 2010 Linda Walsh wrote: > But have another XFS problem that is much more reliably persistent. > I don't know if they are at all related, but since I have this > problem that's a bit "stuck", it's easier to "reproduce". =20 I think my problem is similar. I have a Linux ("orion") running Samba.=20 A Win7 client uses it to store it's "Windows Backup". That's OK. =46rom another Linux ("saturn"), I do an rsync via an rsync-module,=20 and have already 4 Versions where the ".vhd" file of that Windows Backup=20 is destroyed on "saturn". So the corruption happens when starting=20 rsync @saturn, copying orion->saturn, both having XFS. As I cannot delete the broken files, I moved the whole dir away,=20 and did an rsync again. The same file destroyed again on saturn. Some days later, again 2 versions which are destroyed. The difference to Linda is, I get: drwx------+ 2 zmi users 4096 Jun 12 03:15 ./ drwxr-xr-x 7 root root 154 Jun 30 04:00 ../ =2Drwx------+ 1 zmi users 56640000 Jun 12 03:05 852c268f-cf1a-11de-b09b-80= 6e6f6e6963.vhd* ??????????? ? ? ? ? ? 852c2690-cf1a-11de-b09b-806e= 6f6e6963.vhd=20 and on dmesg: [125903.343714] Filesystem "dm-0": corrupt inode 649642 ((a)extents =3D 5).= Unmount and run xfs_repair. = =20 [125903.343735] ffff88011e34ca00: 49 4e 81 c0 02 02 00 00 00 00 03 e8 00 00= 00 64 IN.............d = =20 [125903.343756] Filesystem "dm-0": XFS internal error xfs_iformat_extents(1= ) at line 558 of file /usr/src/packages/BUILD/kernel-desktop-2.6.31.12/linu= x-2.6.31/fs/xfs/xfs_inode.c. Caller 0xffffffffa032c0ad [125903.343763] = = =20 [125903.343791] Pid: 17696, comm: ls Not tainted 2.6.31.12-0.2-desktop #1 = = =20 [125903.343803] Call Trace: = = =20 [125903.343821] [] try_stack_unwind+0x189/0x1b0 = = =20 [125903.343840] [] dump_trace+0xad/0x3a0 = = =20 [125903.343858] [] show_trace_log_lvl+0x64/0x90 = = =20 [125903.343876] [] show_trace+0x23/0x40 = = =20 [125903.343894] [] dump_stack+0x81/0x9e = = =20 [125903.343947] [] xfs_error_report+0x5a/0x70 [xfs] = = =20 [125903.344085] [] xfs_corruption_error+0x6c/0x90 [xfs] = = =20 [125903.344248] [] xfs_iformat_extents+0x234/0x280 [xfs]= = =20 [125903.344409] [] xfs_iformat+0x28d/0x5a0 [xfs] = = =20 [125903.344569] [] xfs_iread+0x182/0x1c0 [xfs] = = =20 [125903.344729] [] xfs_iget_cache_miss+0x78/0x250 [xfs] = = =20 [125903.344882] [] xfs_iget+0x12c/0x1b0 [xfs] = = =20 [125903.345036] [] xfs_lookup+0xce/0x100 [xfs] = = =20 [125903.345256] [] xfs_vn_lookup+0x6c/0xc0 [xfs] = = =20 [125903.345453] [] real_lookup+0x102/0x180 = = =20 [125903.345473] [] do_lookup+0xd0/0x100 = = =20 [125903.345491] [] __link_path_walk+0x522/0x880 = = =20 [125903.345510] [] path_walk+0x66/0xd0 = = =20 [125903.345528] [] do_path_lookup+0x6b/0xb0 = = =20 [125903.345546] [] user_path_at+0x61/0xc0 = = =20 [125903.345565] [] vfs_fstatat+0x41/0x90 = = =20 [125903.345584] [] vfs_lstat+0x2c/0x50 = = =20 [125903.345602] [] sys_newlstat+0x2e/0x70 = = =20 [125903.345621] [] system_call_fastpath+0x16/0x1b = = =20 [125903.345645] [<00007f72dc451e65>] 0x7f72dc451e65 Trying to "xfs_repair -n" seems to find errors, see attachment "repair1.log" Trying to "xfs_repair" crashes, see attachment "repair2.log" Saturns kernel is 2.6.31.12-0.2-desktop from openSUSE 11.2,=20 xfs_repair is 3.1.2 (I tried down several versions down to 3.0.1, all witho= ut success). Even after xfs_metadump and xfs_mdrestore the error exists, and cannot be=20 repaired with xfs_repair, because that crashes. I've put a new metadump containing only the broken stuff for public review: http://zmi.at/saturn_bigdata.metadump.only_broken.bz2 (197 MB) What should I do, apart of ripping the whole filesystem and copying new?=20 The problem is, would be destroyed again, just like it did 4 times now. =2D-=20 mit freundlichen Gr=C3=BCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=C3=A4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --Boundary-01=_Qw4KMswcb0uhpR9 Content-Type: text/x-log; charset="UTF-8"; name="repair1.log" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="repair1.log" Phase 1 - find and verify superblock... Phase 2 - using internal log - scan filesystem freespace and inode maps... - found root inode chunk Phase 3 - for each AG... - scan (but don't clear) agi unlinked lists... - process known inodes and perform inode discovery... - agno = 0 would have corrected attribute entry count in inode 649642 from 40 to 0 local inode 649790 attr too small (size = 1, min size = 4) bad attribute fork in inode 649790, would clear attr fork would have cleared inode 649790 - agno = 1 local inode 2195133988 attr too small (size = 3, min size = 4) bad attribute fork in inode 2195133988, would clear attr fork would have cleared inode 2195133988 would have corrected attribute entry count in inode 2902971474 from 163 to 0 would have corrected attribute totsize in inode 2902971474 from 6 to 4 - agno = 2 - agno = 3 - agno = 4 - agno = 5 - agno = 6 - agno = 7 - process newly discovered inodes... Phase 4 - check for duplicate blocks... - setting up duplicate extent list... - check for inodes claiming duplicate blocks... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - agno = 4 - agno = 5 - agno = 6 - agno = 7 local inode 2195133988 attr too small (size = 3, min size = 4) bad attribute fork in inode 2195133988, would clear attr fork would have cleared inode 2195133988 local inode 649790 attr too small (size = 1, min size = 4) bad attribute fork in inode 649790, would clear attr fork would have cleared inode 649790 No modify flag set, skipping phase 5 Phase 6 - check inode connectivity... - traversing filesystem ... - traversal finished ... - moving disconnected inodes to lost+found ... Phase 7 - verify link counts... No modify flag set, skipping filesystem flush and exiting. --Boundary-01=_Qw4KMswcb0uhpR9 Content-Type: text/x-log; charset="UTF-8"; name="repair2.log" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="repair2.log" Phase 1 - find and verify superblock... Phase 2 - using internal 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... - agno = 0 corrected attribute entry count in inode 649642, was 40, now 0 problem with attribute contents in inode 649642 local inode 649790 attr too small (size = 1, min size = 4) bad attribute fork in inode 649790, clearing attr fork clearing inode 649790 attributes cleared inode 649790 - agno = 1 local inode 2195133988 attr too small (size = 3, min size = 4) bad attribute fork in inode 2195133988, clearing attr fork clearing inode 2195133988 attributes cleared inode 2195133988 corrected attribute entry count in inode 2902971474, was 163, now 0 corrected attribute entry totsize in inode 2902971474, was 6, now 4 problem with attribute contents in inode 2902971474 - agno = 2 - agno = 3 - agno = 4 - agno = 5 - agno = 6 - agno = 7 - process newly discovered inodes... Phase 4 - check for duplicate blocks... - setting up duplicate extent list... - check for inodes claiming duplicate blocks... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - agno = 4 - agno = 5 - agno = 6 - agno = 7 data fork in inode 2195133988 claims metadata block 537122652 xfs_repair: dinode.c:2101: process_inode_data_fork: Assertion `err == 0' failed. --Boundary-01=_Qw4KMswcb0uhpR9-- --nextPart4264842.0mvYMLhAeJ Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwrjBAACgkQzhSR9xwSCbQD4wCg1Sb8U2bXbSKLpL1nbnD2+fnl z3AAn0fNE4ZB5Wf8ssSMrxj1zGTnGsEj =vT9G -----END PGP SIGNATURE----- --nextPart4264842.0mvYMLhAeJ-- From xfs@tlinx.org Wed Jun 30 14:08:06 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5UJ85K8142157 for ; Wed, 30 Jun 2010 14:08:06 -0500 X-ASG-Debug-ID: 1277925051-3fab018d0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from Ishtar.sc.tlinx.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 6C53D1D62D48 for ; Wed, 30 Jun 2010 12:10:51 -0700 (PDT) Received: from Ishtar.sc.tlinx.org (ishtar.tlinx.org [173.164.175.65]) by cuda.sgi.com with ESMTP id b85jZ8HZx2TqaQyt for ; Wed, 30 Jun 2010 12:10:51 -0700 (PDT) Received: from [192.168.3.12] (Athenae [192.168.3.12]) by Ishtar.sc.tlinx.org (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5UJAaE5021946; Wed, 30 Jun 2010 12:10:38 -0700 Message-ID: <4C2B96AC.4030009@tlinx.org> Date: Wed, 30 Jun 2010 12:10:36 -0700 From: "Linda A. Walsh" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.8.1.24) Gecko/20100228 Lightning/0.9 Thunderbird/2.0.0.24 Mnenhy/0.7.6.666 MIME-Version: 1.0 To: Chris Wedgwood , xfs-oss X-ASG-Orig-Subj: Re: xfs_restore -R -- recovering a previous restore...does it work? Subject: Re: xfs_restore -R -- recovering a previous restore...does it work? References: <4C2B37D6.50801@tlinx.org> <4C2B6EEE.5050103@tlinx.org> <20100630172750.GA20764@puku.stupidest.org> <4C2B8440.5030503@tlinx.org> <20100630182755.GA23188@puku.stupidest.org> In-Reply-To: <20100630182755.GA23188@puku.stupidest.org> X-Stationery: 0.5.1 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: ishtar.tlinx.org[173.164.175.65] X-Barracuda-Start-Time: 1277925052 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.34020 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Chris Wedgwood wrote: > On Wed, Jun 30, 2010 at 10:52:00AM -0700, Linda A. Walsh wrote: > >> Dmesg shows nothing revealing. > > it seems odd the subprocess killed you terminal then ---- No...it was attached to a terminal window that got closed by accident. > >> I am not using tape -- I'm restoring from a file. >> >> Does it only work with tapes? I didn't recall it saying so. > > files should work, i've just not used them personally aside from some > testing > > > how large is the image to be restored? A few bytes... 2362017678616 ( 2.15TB) From stan@hardwarefreak.com Wed Jun 30 15:59:13 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5UKxC5x146959 for ; Wed, 30 Jun 2010 15:59:13 -0500 X-ASG-Debug-ID: 1277931717-5b2d004e0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from greer.hardwarefreak.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 388C4157E3A9 for ; Wed, 30 Jun 2010 14:01:57 -0700 (PDT) Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id ZIcnKAadVF3bVoyi for ; Wed, 30 Jun 2010 14:01:57 -0700 (PDT) Received: from [192.168.100.53] (gffx.hardwarefreak.com [192.168.100.53]) by greer.hardwarefreak.com (Postfix) with ESMTP id 58B286C3F6 for ; Wed, 30 Jun 2010 16:01:57 -0500 (CDT) Message-ID: <4C2BB0C4.4060800@hardwarefreak.com> Date: Wed, 30 Jun 2010 16:01:56 -0500 From: Stan Hoeppner User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9.1.10) Gecko/20100512 Thunderbird/3.0.5 MIME-Version: 1.0 To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ; -/ (was xfs_dump problem...) Subject: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ; -/ (was xfs_dump problem...) References: <4C26A51F.8020909@tlinx.org> <20100628022744.GX6590@dastard> <4C2A749E.4060006@tlinx.org> <20100629232532.GA24712@dastard> <4C2A8948.3030008@tlinx.org> <20100630010622.GC24712@dastard> <4C2AA36F.2070905@tlinx.org> In-Reply-To: <4C2AA36F.2070905@tlinx.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mo-65-41-216-221.sta.embarqhsd.net[65.41.216.221] X-Barracuda-Start-Time: 1277931718 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0001 1.0000 -2.0205 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.42 X-Barracuda-Spam-Status: No, SCORE=-1.42 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_SC5_MJ1963, RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.34020 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Linda A. Walsh put forth on 6/29/2010 8:52 PM: > I have another directory "Shakugan no Shana II OST", that I can't cd > into or ls. > Just says 'not found'. > > This all happened today. They were accessible before today. I'm not > sure what changed, > other than new files were added. It is interesting that all of these "corrupt" files originate from Japan. The filenames have likely passed through many different character encodings on their journey from their source to your XFS filesystems. And they probably originated on a MS Windows machine. How can you be so certain that there isn't a wonky bit somewhere that's wreaking havoc with BabelMap? Maybe that program has a bug, that after after Y access cycles flips a bit, changes a character, or something along these lines? Did you update this program recently, or any other programs that might affect character encoding/displaying, or anything remotely related to such? Have you done any software updates recently, period? Given the entirety of what we're looking at, and that you're apparently not seeing this with files created in a native English language encoding, I'd say Dave is probably on the right track here. -- Stan From SRS0++WWN+30+fromorbit.com=david@internode.on.net Wed Jun 30 18:27:50 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5UNRnBQ154405 for ; Wed, 30 Jun 2010 18:27:49 -0500 X-ASG-Debug-ID: 1277940633-57ad02940000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 1A0E7158190F for ; Wed, 30 Jun 2010 16:30:33 -0700 (PDT) Received: from mail.internode.on.net (bld-mail16.adl2.internode.on.net [150.101.137.101]) by cuda.sgi.com with ESMTP id fjOpeLzrocDO2bcp for ; Wed, 30 Jun 2010 16:30:33 -0700 (PDT) Received: from dastard (unverified [121.44.238.155]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 29817682-1927428 for multiple; Thu, 01 Jul 2010 09:00:31 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OU6jd-0007yf-Qe; Thu, 01 Jul 2010 09:30:29 +1000 Date: Thu, 1 Jul 2010 09:30:29 +1000 From: Dave Chinner To: Michael Monnerie Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: rsync and corrupt inodes (was xfs_dump problem) Subject: rsync and corrupt inodes (was xfs_dump problem) Message-ID: <20100630233029.GO24712@dastard> References: <4C26A51F.8020909@tlinx.org> <20100628022744.GX6590@dastard> <4C2A749E.4060006@tlinx.org> <201006302025.20289@zmi.at> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201006302025.20289@zmi.at> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail16.adl2.internode.on.net[150.101.137.101] X-Barracuda-Start-Time: 1277940635 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.34020 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed, Jun 30, 2010 at 08:25:20PM +0200, Michael Monnerie wrote: > On Mittwoch, 30. Juni 2010 Linda Walsh wrote: > > But have another XFS problem that is much more reliably persistent. > > I don't know if they are at all related, but since I have this > > problem that's a bit "stuck", it's easier to "reproduce". > > I think my problem is similar. I have a Linux ("orion") running Samba. > A Win7 client uses it to store it's "Windows Backup". That's OK. > > From another Linux ("saturn"), I do an rsync via an rsync-module, > and have already 4 Versions where the ".vhd" file of that Windows Backup > is destroyed on "saturn". So the corruption happens when starting > rsync @saturn, copying orion->saturn, both having XFS. Are you running rsync locally on saturn (i.e. pulling data)? If so, can you get an strace of the rsync of that file so we can see what the order or operations being done on the file is. If you are pushing data to saturn, does the problem go away if you pull it (and vice versa)? > As I cannot delete the broken files, I moved the whole dir away, > and did an rsync again. The same file destroyed again on saturn. > Some days later, again 2 versions which are destroyed. > > The difference to Linda is, I get: > drwx------+ 2 zmi users 4096 Jun 12 03:15 ./ > drwxr-xr-x 7 root root 154 Jun 30 04:00 ../ > -rwx------+ 1 zmi users 56640000 Jun 12 03:05 852c268f-cf1a-11de-b09b-806e6f6e6963.vhd* > ??????????? ? ? ? ? ? 852c2690-cf1a-11de-b09b-806e6f6e6963.vhd On the source machine, can you get a list of the xattrs on the inode? > and on dmesg: > [125903.343714] Filesystem "dm-0": corrupt inode 649642 ((a)extents = 5). Unmount and run xfs_repair. > [125903.343735] ffff88011e34ca00: 49 4e 81 c0 02 02 00 00 00 00 03 e8 00 00 00 64 IN.............d > [125903.343756] Filesystem "dm-0": XFS internal error xfs_iformat_extents(1) at line 558 of file /usr/src/packages/BUILD/kernel-desktop-2.6.31.12/linux-2.6.31/fs/xfs/xfs_inode.c. Caller 0xffffffffa032c0ad That seems like a different problem to what linda is seeing because this is on-disk corruption. can you dump the bad inode via: # xfs_db -x -r -c "inode 649642" -c p > [125903.343791] Pid: 17696, comm: ls Not tainted 2.6.31.12-0.2-desktop #1 That's getting a bit old now. This kernel does not have any of the swap extent guards we added to avoid fsr corrupting inodes with attribute forks, and the above corruption report and the repair output look exactly like I saw when intentionally corrupting inodes with xfs_fsr. > Trying to "xfs_repair -n" seems to find errors, see attachment "repair1.log" Hmmmm - do you run xfs_fsr? The errors reported and the corrutpion above are exactly what I'd expect from the swap extent bugs we fixed a while back.... > Trying to "xfs_repair" crashes, see attachment "repair2.log" > > Saturns kernel is 2.6.31.12-0.2-desktop from openSUSE 11.2, > xfs_repair is 3.1.2 (I tried down several versions down to 3.0.1, all without success). > > Even after xfs_metadump and xfs_mdrestore the error exists, and cannot be > repaired with xfs_repair, because that crashes. > > I've put a new metadump containing only the broken stuff for public review: > http://zmi.at/saturn_bigdata.metadump.only_broken.bz2 (197 MB) I'll take a look. Cheers, Dave. -- Dave Chinner david@fromorbit.com From xfs@tlinx.org Wed Jun 30 19:03:58 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o6103wZX156031 for ; Wed, 30 Jun 2010 19:03:58 -0500 X-ASG-Debug-ID: 1277942803-29c8032f0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from Ishtar.sc.tlinx.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id E502341DF6E for ; Wed, 30 Jun 2010 17:06:44 -0700 (PDT) Received: from Ishtar.sc.tlinx.org (ishtar.tlinx.org [173.164.175.65]) by cuda.sgi.com with ESMTP id NCEBrI01LII3yB5o for ; Wed, 30 Jun 2010 17:06:44 -0700 (PDT) Received: from [192.168.3.12] (Athenae [192.168.3.12]) by Ishtar.sc.tlinx.org (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o6106MrM030627; Wed, 30 Jun 2010 17:06:25 -0700 Message-ID: <4C2BDBFE.5050007@tlinx.org> Date: Wed, 30 Jun 2010 17:06:22 -0700 From: "Linda A. Walsh" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.8.1.24) Gecko/20100228 Lightning/0.9 Thunderbird/2.0.0.24 Mnenhy/0.7.6.666 MIME-Version: 1.0 To: Chris Wedgwood , xfs-oss X-ASG-Orig-Subj: Re: xfs_restore -R -- recovering a previous restore...does it work? Subject: Re: xfs_restore -R -- recovering a previous restore...does it work? References: <4C2B37D6.50801@tlinx.org> <4C2B6EEE.5050103@tlinx.org> <20100630172750.GA20764@puku.stupidest.org> <4C2B8440.5030503@tlinx.org> <20100630182755.GA23188@puku.stupidest.org> <4C2B96AC.4030009@tlinx.org> <20100630213653.GA26145@puku.stupidest.org> In-Reply-To: <20100630213653.GA26145@puku.stupidest.org> X-Stationery: 0.5.1 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: ishtar.tlinx.org[173.164.175.65] X-Barracuda-Start-Time: 1277942804 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.34020 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Chris Wedgwood wrote: >>> how large is the image to be restored? >> ( 2.15TB) > out of interest, so smaller images work? I don't know...this was my first time I ever tried it. Usually smaller images don't have so many opportunities to get interrupted. :-) This one took 3h 18m, .. a crappy 189MB/s! I was just unlucky enough to have something interrupt it 3 times in a row (since it was the partition that was corrupt -- I'm a bit scattered as I have no idea what might have caused that partition to go corrupt and no idea if it is just going turn around and happen again. Unfortunately, it's not like it is the easiest partition to backup & restore. Guess I can experiment! ;-) From SRS0+5f+1+31+fromorbit.com=david@internode.on.net Wed Jun 30 19:21:42 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o610Lg0L156747 for ; Wed, 30 Jun 2010 19:21:42 -0500 X-ASG-Debug-ID: 1277944163-0d2e03620000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id AF45814B426F for ; Wed, 30 Jun 2010 17:29:24 -0700 (PDT) Received: from mail.internode.on.net (bld-mail18.adl2.internode.on.net [150.101.137.103]) by cuda.sgi.com with ESMTP id Dr0bbASRspxyQccT for ; Wed, 30 Jun 2010 17:29:24 -0700 (PDT) Received: from dastard (unverified [121.44.238.155]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 29713587-1927428 for multiple; Thu, 01 Jul 2010 09:54:25 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OU7Zo-00083M-2q; Thu, 01 Jul 2010 10:24:24 +1000 Date: Thu, 1 Jul 2010 10:24:24 +1000 From: Dave Chinner To: "Linda A. Walsh" Cc: xfs-oss X-ASG-Orig-Subj: Re: When it rains it pours.... Subject: Re: When it rains it pours.... Message-ID: <20100701002424.GP24712@dastard> References: <4C2B37D6.50801@tlinx.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C2B37D6.50801@tlinx.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail18.adl2.internode.on.net[150.101.137.103] X-Barracuda-Start-Time: 1277944165 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.34021 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Wed, Jun 30, 2010 at 05:25:58AM -0700, Linda A. Walsh wrote: > Due to another bug in lvm, my restore of this partition crashed after running a few > hours (takes alot longer to restore than to backup). > > So I decided to use the "-R" option to Resume my previously left off dump: > > # xfsrestore -R -p 180 -f /backups/Ishtar/torrents/torrents-100629-0-1611.dump . > xfsrestore: using file dump (drive_simple) strategy > xfsrestore: version 3.0.4 (dump format 3.0) - Running single-threaded > xfsrestore: resuming restore previously begun Wed Jun 30 04:41:57 2010 > xfsrestore: examining media file 0 > xfsrestore: seeking past portion of media file already restored > > Looks good so far!..Yup, and.. > > xfsrestore: drive_simple.c:770: do_seek_mark: Assertion `nreadneeded64 <= ( ( intgen_t ) ( ( ( 1ull << ( ( unsigned long long )sizeof( intgen_t ) * ( unsigned long long )8 - ( 1ull + 1ull ))) - 1ull ) * 2ull + 1ull ))' failed. > Aborted (core dumped) > > > Say what? Um...is that supposed to be an error message? No, it's an assert failure. i.e. something a developer considered fatal and requiring debugging if it ever occurred. It's not an error message an end user is expected to understand. ;) > Why can't it just tell me why "'nreadneeded64' > 0xbfffffffffffffd" > is 'bad', or what it means? Asserts generally indicate that design constraints or assumptions have been violated which canbe hard to explain in one line to an end user.... >From a brief look at the code, it appears that the distance between the stream offset and the next tape mark is greater than MAXINTGENT. MAXINTGEN evaluates as 0x7fffffff (more commonly known as INT_MAX). Normally the file is read mark by mark, but when resuming a restore we skip from the initial header to the checkpointed file mark in one step. It seems like marks are normally less that 2GB apart, but in the case of resuming, the attempt to seek from the header to the checkpointed mark is way more than 2GB and hence it triggers the assert. I'm not sure yet how to fix this - I have't dug into the drive code in xfs_restore before so it'll take a while to understand well enough to work out a solution. In the mean time, I think restarting your restore from scratch is your best bet. Cheers, Dave. -- Dave Chinner david@fromorbit.com From mail2informacion@genion.de Wed Jun 30 23:05:33 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: **** X-Spam-Status: No, score=4.0 required=5.0 tests=BAYES_99,T_HK_SPAMMY_FILENAME autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o6145WCP166684 for ; Wed, 30 Jun 2010 23:05:33 -0500 X-ASG-Debug-ID: 1277957594-282501a90000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from gockel.hmdnsgroup.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 80B8511849DE for ; Wed, 30 Jun 2010 21:13:14 -0700 (PDT) Received: from gockel.hmdnsgroup.com (gockel.hmdnsgroup.com [63.247.129.108]) by cuda.sgi.com with ESMTP id 62GywaBGlUC6nykO for ; Wed, 30 Jun 2010 21:13:14 -0700 (PDT) Received: from [127.0.0.1] (port=38155 helo=donofrioslp.com) by 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------=_20100630164613_36563-- From eflorac@intellique.com Tue Jun 8 09:31:40 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58EVe6s007072 for ; Tue, 8 Jun 2010 09:31:40 -0500 X-ASG-Debug-ID: 1280441823-581c02d10000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp3-g21.free.fr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id B98D111AE93F for ; Thu, 29 Jul 2010 15:17:04 -0700 (PDT) Received: from smtp3-g21.free.fr (smtp3-g21.free.fr [212.27.42.3]) by cuda.sgi.com with ESMTP id GC03UNzxeGN9PbrW for ; Thu, 29 Jul 2010 15:17:04 -0700 (PDT) Received: from galadriel.home (unknown [82.235.234.79]) by smtp3-g21.free.fr (Postfix) with ESMTP id 772F681806A; Fri, 30 Jul 2010 00:09:25 +0200 (CEST) Date: Fri, 30 Jul 2010 00:09:24 +0200 From: Emmanuel Florac To: Eli Morris Cc: xfs@oss.sgi.com, Dave Chinner X-ASG-Orig-Subj: Re: filesystem shrinks after using xfs_repair Subject: Re: filesystem shrinks after using xfs_repair Message-ID: <20100730000924.77d6767e@galadriel.home> In-Reply-To: References: <20100712134743.624249b2@harpe.intellique.com> <274A8D0C-4C31-4FB9-AB2D-BA3C31D497E0@ucsc.edu> <20100724005426.GN32635@dastard> <20100724023922.GP32635@dastard> <777100A1-57DE-4DE0-B1F0-64977BD694AD@ucsc.edu> <20100726034545.GE655@dastard> <10B6F36F-BE01-4BF7-9815-2E8F6BF71B41@ucsc.edu> <20100726060604.GF7362@dastard> <20100726102036.GH7362@dastard> <0EC8FE5D-212C-4030-9D59-FDF38DF4E9EE@ucsc.edu> Organization: Intellique X-Mailer: Claws Mail 3.7.3 (GTK+ 2.20.1; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: smtp3-g21.free.fr[212.27.42.3] X-Barracuda-Start-Time: 1280441826 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36469 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Le Thu, 29 Jul 2010 12:22:30 -0700 vous =E9criviez: > I tried filling up the disk with data to see if that worked Ok and it > did, up until this point. There is something I don't understand going > on though. 'df' says that I have 381 GB free on the disk, but I can't > write to the disk anymore because it says it there isn't any space > left on it. Is this some insane round off error or is there something > going on here? You probably ran out of inodes. Do you have many small files? --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From SRS0+oarb+59+fromorbit.com=dave@internode.on.net Tue Jun 8 10:07:40 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,J_CHICKENPOX_33, J_CHICKENPOX_63 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58F7dSS009252 for ; Tue, 8 Jun 2010 10:07:40 -0500 X-ASG-Debug-ID: 1280443530-403601190000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 53BDE1662B89 for ; Thu, 29 Jul 2010 15:45:30 -0700 (PDT) Received: from mail.internode.on.net (bld-mail18.adl2.internode.on.net [150.101.137.103]) by cuda.sgi.com with ESMTP id uzrZXzAH1TfKN5GQ for ; Thu, 29 Jul 2010 15:45:30 -0700 (PDT) Received: from dastard (unverified [121.44.18.238]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 33178071-1927428 for multiple; Fri, 30 Jul 2010 08:15:22 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1Oebqr-0000I4-5e; Fri, 30 Jul 2010 08:45:21 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1Oebqm-0003lW-MS; Fri, 30 Jul 2010 08:45:16 +1000 From: Dave Chinner To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, sandeen@sandeen.net X-ASG-Orig-Subj: [PATCH] dio: track and serialise unaligned direct IO Subject: [PATCH] dio: track and serialise unaligned direct IO Date: Fri, 30 Jul 2010 08:45:16 +1000 Message-Id: <1280443516-14448-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 X-Barracuda-Connect: bld-mail18.adl2.internode.on.net[150.101.137.103] X-Barracuda-Start-Time: 1280443532 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36470 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner If we get two unaligned direct IO's to the same filesystem block that is marked as a new allocation (i.e. buffer_new), then both IOs will zero the portion of the block they are not writing data to. As a result, when the IOs complete there will be a portion of the block that contains zeros from the last IO to complete rather than the data that should be there. This is easily manifested by qemu using aio+dio with an unaligned guest filesystem - every IO is unaligned and fileystem corruption is encountered in the guest filesystem. xfstest 240 (from Eric Sandeen) is also a simple reproducer. To avoid this problem, track unaligned IO that triggers sub-block zeroing and check new incoming unaligned IO that require sub-block zeroing against that list. If we get an overlap where the start and end of unaligned IOs hit the same filesystem block, then we need to block the incoming IOs until the IO that is zeroing the block completes. The blocked IO can then continue without needing to do any zeroing and hence won't overwrite valid data with zeros. Signed-off-by: Dave Chinner --- fs/direct-io.c | 152 +++++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 files changed, 146 insertions(+), 6 deletions(-) diff --git a/fs/direct-io.c b/fs/direct-io.c index a10cb91..611524e 100644 --- a/fs/direct-io.c +++ b/fs/direct-io.c @@ -71,6 +71,9 @@ struct dio { unsigned start_zero_done; /* flag: sub-blocksize zeroing has been performed at the start of a write */ +#define LAST_SECTOR ((sector_t)-1LL) + sector_t zero_block_front; /* fs block we are zeroing at front */ + sector_t zero_block_rear; /* fs block we are zeroing at rear */ int pages_in_io; /* approximate total IO pages */ size_t size; /* total request size (doesn't change)*/ sector_t block_in_file; /* Current offset into the underlying @@ -135,6 +138,101 @@ struct dio { struct page *pages[DIO_PAGES]; /* page buffer */ }; + +/* + * record fs blocks we are doing zeroing on in a zero block list. + * unaligned IO is not very performant and so is relatively uncommon, + * so a global list should be sufficent to track them. + */ +struct dio_zero_block { + struct list_head dio_list; /* list of io in progress */ + sector_t zero_block; /* block being zeroed */ + struct dio *dio; /* owner dio */ + wait_queue_head_t wq; /* New IO block here */ + atomic_t ref; /* reference count */ +}; + +DEFINE_SPINLOCK(dio_zero_block_lock); +LIST_HEAD(dio_zero_block_list); + +/* + * Add a filesystem block to the list of blocks we are tracking. + */ +static void +dio_start_zero_block(struct dio *dio, sector_t zero_block) +{ + struct dio_zero_block *zb; + + zb = kmalloc(sizeof(*zb), GFP_NOIO); + if (!zb) + return; + INIT_LIST_HEAD(&zb->dio_list); + init_waitqueue_head(&zb->wq); + zb->zero_block = zero_block; + zb->dio = dio; + atomic_set(&zb->ref, 1); + + spin_lock(&dio_zero_block_lock); + list_add(&zb->dio_list, &dio_zero_block_list); + spin_unlock(&dio_zero_block_lock); +} + +static void +dio_drop_zero_block(struct dio_zero_block *zb) +{ + if (atomic_dec_and_test(&zb->ref)) + kfree(zb); +} + +/* + * Check whether a filesystem block is currently being zeroed, and if it is + * wait for it to complete before returning. If we waited for a block being + * zeroed, return 1 to indicate that the block is already initialised, + * otherwise return 0 to indicate that it needs zeroing. + */ +static int +dio_wait_zero_block(struct dio *dio, sector_t zero_block) +{ + struct dio_zero_block *zb; + + spin_lock(&dio_zero_block_lock); + list_for_each_entry(zb, &dio_zero_block_list, dio_list) { + if (zb->dio->inode != dio->inode) + continue; + if (zb->zero_block != zero_block) + continue; + atomic_inc(&zb->ref); + spin_unlock(&dio_zero_block_lock); + wait_event(zb->wq, (list_empty(&zb->dio_list))); + dio_drop_zero_block(zb); + return 1; + } + spin_unlock(&dio_zero_block_lock); + return 0; +} + +/* + * Complete a block zeroing and wake up anyone waiting for it. + */ +static void dio_end_zero_block(struct dio *dio, sector_t zero_block) +{ + struct dio_zero_block *zb; + + spin_lock(&dio_zero_block_lock); + list_for_each_entry(zb, &dio_zero_block_list, dio_list) { + if (zb->dio->inode != dio->inode) + continue; + if (zb->zero_block != zero_block) + continue; + list_del_init(&zb->dio_list); + spin_unlock(&dio_zero_block_lock); + wake_up(&zb->wq); + dio_drop_zero_block(zb); + return; + } + spin_unlock(&dio_zero_block_lock); +} + /* * How many pages are in the queue? */ @@ -253,6 +351,11 @@ static int dio_complete(struct dio *dio, loff_t offset, int ret, bool is_async) aio_complete(dio->iocb, ret, 0); } + if (dio->zero_block_front != LAST_SECTOR) + dio_end_zero_block(dio, dio->zero_block_front); + if (dio->zero_block_rear != LAST_SECTOR) + dio_end_zero_block(dio, dio->zero_block_rear); + if (dio->flags & DIO_LOCKING) /* lockdep: non-owner release */ up_read_non_owner(&dio->inode->i_alloc_sem); @@ -777,6 +880,12 @@ static void clean_blockdev_aliases(struct dio *dio) * block with zeros. This happens only if user-buffer, fileoffset or * io length is not filesystem block-size multiple. * + * We need to track the blocks we are zeroing. If we have concurrent IOs that hit + * the same start or end block, we do not want all the IOs to zero the portion + * they are not writing data to as that will overwrite data from the other IOs. + * Hence we need to block until the first unaligned IO completes before we can + * continue (without executing any zeroing). + * * `end' is zero if we're doing the start of the IO, 1 at the end of the * IO. */ @@ -784,8 +893,8 @@ static void dio_zero_block(struct dio *dio, int end) { unsigned dio_blocks_per_fs_block; unsigned this_chunk_blocks; /* In dio_blocks */ - unsigned this_chunk_bytes; struct page *page; + sector_t fsblock; dio->start_zero_done = 1; if (!dio->blkfactor || !buffer_new(&dio->map_bh)) @@ -797,17 +906,41 @@ static void dio_zero_block(struct dio *dio, int end) if (!this_chunk_blocks) return; + if (end) + this_chunk_blocks = dio_blocks_per_fs_block - this_chunk_blocks; + /* * We need to zero out part of an fs block. It is either at the - * beginning or the end of the fs block. + * beginning or the end of the fs block, but first we need to check if + * there is already a zeroing being run on this block. + * + * If we are doing a sub-block IO (i.e. zeroing both front and rear of + * the same block) we don't need to wait or set a gaurd for the rear of + * the block as we already have one set. */ - if (end) - this_chunk_blocks = dio_blocks_per_fs_block - this_chunk_blocks; + fsblock = dio->block_in_file >> dio->blkfactor; + if (!end || dio->zero_block_front != fsblock) { - this_chunk_bytes = this_chunk_blocks << dio->blkbits; + /* wait for any zeroing already in progress */ + if (dio_wait_zero_block(dio, fsblock)) { + /* skip the range we would have zeroed. */ + dio->next_block_for_io += this_chunk_blocks; + return; + } + + /* + * we are going to zero stuff now, so set a guard to catch + * others that might want to zero the same block. + */ + dio_start_zero_block(dio, fsblock); + if (end) + dio->zero_block_rear = fsblock; + else + dio->zero_block_front = fsblock; + } page = ZERO_PAGE(0); - if (submit_page_section(dio, page, 0, this_chunk_bytes, + if (submit_page_section(dio, page, 0, this_chunk_blocks << dio->blkbits, dio->next_block_for_io)) return; @@ -1191,6 +1324,13 @@ __blockdev_direct_IO_newtrunc(int rw, struct kiocb *iocb, struct inode *inode, */ memset(dio, 0, offsetof(struct dio, pages)); + /* + * zero_blocks need to initialised to largeѕt value to avoid + * matching the zero block accidentally. + */ + dio->zero_block_front = LAST_SECTOR; + dio->zero_block_rear = LAST_SECTOR; + dio->flags = flags; if (dio->flags & DIO_LOCKING) { /* watch out for a 0 len io from a tricksy fs */ -- 1.7.1 From ermorris@ucsc.edu Tue Jun 8 10:10:51 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58FAoJe009761 for ; 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Thu, 29 Jul 2010 15:48:43 -0700 X-UCSC-EDU-ClamAVCheck: not spam, ClamAV(signaure=none) Received: from [128.114.25.211] (account ermorris@ucsc.edu HELO dhcp-25-211.ucsc.edu) by email-prod-fe-1.ucsc.edu (CommuniGate Pro SMTP 5.2.13) with ESMTPSA id 358350668; Thu, 29 Jul 2010 15:48:38 -0700 X-ASG-Orig-Subj: Re: filesystem shrinks after using xfs_repair Subject: Re: filesystem shrinks after using xfs_repair Mime-Version: 1.0 (Apple Message framework v1081) Content-Type: text/plain; charset=iso-8859-1 From: Eli Morris In-Reply-To: <20100730000924.77d6767e@galadriel.home> Date: Thu, 29 Jul 2010 15:48:38 -0700 Cc: xfs@oss.sgi.com, Dave Chinner Content-Transfer-Encoding: quoted-printable Message-Id: References: <20100712134743.624249b2@harpe.intellique.com> <274A8D0C-4C31-4FB9-AB2D-BA3C31D497E0@ucsc.edu> <20100724005426.GN32635@dastard> <20100724023922.GP32635@dastard> <777100A1-57DE-4DE0-B1F0-64977BD694AD@ucsc.edu> <20100726034545.GE655@dastard> <10B6F36F-BE01-4BF7-9815-2E8F6BF71B41@ucsc.edu> <20100726060604.GF7362@dastard> <20100726102036.GH7362@dastard> <0EC8FE5D-212C-4030-9D59-FDF38DF4E9EE@ucsc.edu> <20100730000924.77d6767e@galadriel.home> To: Emmanuel Florac X-Mailer: Apple Mail (2.1081) X-Barracuda-Connect: email-prod-out-1.ucsc.edu[128.114.129.85] X-Barracuda-Start-Time: 1280443724 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36470 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Jul 29, 2010, at 3:09 PM, Emmanuel Florac wrote: > Le Thu, 29 Jul 2010 12:22:30 -0700 vous =E9criviez: >=20 >> I tried filling up the disk with data to see if that worked Ok and it >> did, up until this point. There is something I don't understand going >> on though. 'df' says that I have 381 GB free on the disk, but I can't >> write to the disk anymore because it says it there isn't any space >> left on it. Is this some insane round off error or is there something >> going on here? >=20 > You probably ran out of inodes. Do you have many small files? >=20 > --=20 > = ------------------------------------------------------------------------ > Emmanuel Florac | Direction technique > | Intellique > | > | +33 1 78 94 84 02 > = ------------------------------------------------------------------------ Hi, I checked the inodes with this command, and it looks like I have plenty = left. It's this entry, '/dev/mapper/vg1-vol5'. =20 [root@nimbus ~]# df -hi Filesystem Inodes IUsed IFree IUse% Mounted on /dev/sdb2 6.2M 208K 6.0M 4% / /dev/sda5 219M 452K 218M 1% /export /dev/sda2 1001K 5.5K 996K 1% /var tmpfs 4.0M 1 4.0M 1% /dev/shm /dev/mapper/vg1-vol5 1.5G 1020K 1.5G 1% /export/vol5 /dev/sdb1 127M 42K 127M 1% /storage tmpfs 4.0M 629 4.0M 1% /var/lib/ganglia/rrds thanks, Eli From SRS0+oarb+59+fromorbit.com=dave@internode.on.net Tue Jun 8 10:18:05 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-4.9 required=5.0 tests=BAYES_00,LOCAL_GNU_PATCH autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58FI4k9010766 for ; Tue, 8 Jun 2010 10:18:05 -0500 X-ASG-Debug-ID: 1280444156-439201420000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 62D511659A7A for ; Thu, 29 Jul 2010 15:55:57 -0700 (PDT) Received: from mail.internode.on.net (bld-mail18.adl2.internode.on.net [150.101.137.103]) by cuda.sgi.com with ESMTP id UIbea9OV0Cbt7236 for ; Thu, 29 Jul 2010 15:55:57 -0700 (PDT) Received: from dastard (unverified [121.44.18.238]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 33179008-1927428 for multiple; Fri, 30 Jul 2010 08:25:55 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1Oec13-0000J8-Pr; Fri, 30 Jul 2010 08:55:53 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1Oec0z-0003nY-KA; Fri, 30 Jul 2010 08:55:49 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: npiggin@kernel.de X-ASG-Orig-Subj: [PATCH 1/2] xfs: unlock items before allowing the CIL to commit Subject: [PATCH 1/2] xfs: unlock items before allowing the CIL to commit Date: Fri, 30 Jul 2010 08:55:45 +1000 Message-Id: <1280444146-14540-2-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1280444146-14540-1-git-send-email-david@fromorbit.com> References: <1280444146-14540-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail18.adl2.internode.on.net[150.101.137.103] X-Barracuda-Start-Time: 1280444158 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36472 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner When we commit a transaction using delayed logging, we need to unlock the items in the transaciton before we unlock the CIL context and allow it to be checkpointed. If we unlock them after we release the CIl context lock, the CIL can checkpoint and complete before we free the log items. This breaks stale buffer item unlock and unpin processing as there is an implicit assumption that the unlock will occur before the unpin. Also, some log items need to store the LSN of the transaction commit in the item (inodes and EFIs) and so can race with other transaction completions if we don't prevent the CIL from checkpointing before the unlock occurs. Signed-off-by: Dave Chinner --- fs/xfs/xfs_log_cil.c | 14 ++++++++++++++ fs/xfs/xfs_trans.c | 5 +---- fs/xfs/xfs_trans_priv.h | 3 ++- 3 files changed, 17 insertions(+), 5 deletions(-) diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c index 31e4ea2..ef8e7d9 100644 --- a/fs/xfs/xfs_log_cil.c +++ b/fs/xfs/xfs_log_cil.c @@ -377,9 +377,23 @@ xfs_log_commit_cil( xfs_log_done(mp, tp->t_ticket, NULL, log_flags); xfs_trans_unreserve_and_mod_sb(tp); + /* + * Once all the items of the transaction have been copied to the CIL, + * the items can be unlocked and freed. + * + * This needs to be done before we drop the CIL context lock because we + * have to update state in the log items and unlock them before they go + * to disk. If we don't, then the CIL checkpoint can race with us and + * we can run checkpoint completion before we've updated and unlocked + * the log items. This affects (at least) processing of stale buffers, + * inodes and EFIs. + */ + xfs_trans_free_items(tp, *commit_lsn, 0); + /* check for background commit before unlock */ if (log->l_cilp->xc_ctx->space_used > XLOG_CIL_SPACE_LIMIT(log)) push = 1; + up_read(&log->l_cilp->xc_ctx_lock); /* diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c index fdca741..1c47eda 100644 --- a/fs/xfs/xfs_trans.c +++ b/fs/xfs/xfs_trans.c @@ -1167,7 +1167,7 @@ xfs_trans_del_item( * Unlock all of the items of a transaction and free all the descriptors * of that transaction. */ -STATIC void +void xfs_trans_free_items( struct xfs_trans *tp, xfs_lsn_t commit_lsn, @@ -1653,9 +1653,6 @@ xfs_trans_commit_cil( return error; current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS); - - /* xfs_trans_free_items() unlocks them first */ - xfs_trans_free_items(tp, *commit_lsn, 0); xfs_trans_free(tp); return 0; } diff --git a/fs/xfs/xfs_trans_priv.h b/fs/xfs/xfs_trans_priv.h index e2d93d8..62da86c 100644 --- a/fs/xfs/xfs_trans_priv.h +++ b/fs/xfs/xfs_trans_priv.h @@ -25,7 +25,8 @@ struct xfs_trans; void xfs_trans_add_item(struct xfs_trans *, struct xfs_log_item *); void xfs_trans_del_item(struct xfs_log_item *); - +void xfs_trans_free_items(struct xfs_trans *tp, xfs_lsn_t commit_lsn, + int flags); void xfs_trans_item_committed(struct xfs_log_item *lip, xfs_lsn_t commit_lsn, int aborted); void xfs_trans_unreserve_and_mod_sb(struct xfs_trans *tp); -- 1.7.1 From SRS0+fbW6+59+fromorbit.com=dave@internode.on.net Tue Jun 8 10:18:06 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58FI5tZ010771 for ; Tue, 8 Jun 2010 10:18:05 -0500 X-ASG-Debug-ID: 1280444610-235d013f0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 4A07B11B0528 for ; Thu, 29 Jul 2010 16:03:30 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id r6XLCT6q94Lzqodi for ; Thu, 29 Jul 2010 16:03:30 -0700 (PDT) Received: from dastard (unverified [121.44.18.238]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 33422383-1927428 for multiple; Fri, 30 Jul 2010 08:25:54 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1Oec13-0000J7-OO; Fri, 30 Jul 2010 08:55:53 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1Oec0z-0003nW-IK; Fri, 30 Jul 2010 08:55:49 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: npiggin@kernel.de X-ASG-Orig-Subj: [PATCH 0/2] xfs: fix bugs uncovered by dbench testing Subject: [PATCH 0/2] xfs: fix bugs uncovered by dbench testing Date: Fri, 30 Jul 2010 08:55:44 +1000 Message-Id: <1280444146-14540-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1280444612 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0121 1.0000 -1.9420 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.94 X-Barracuda-Spam-Status: No, SCORE=-1.94 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36471 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean The reproducer Nick found that hung the XFS filesystem has two different causes. Both manifest in the same way, so it was difficult to tell them aparṫ - they left an item that could notbe flushed stuck in the AIL and hence preventing the tail of the log from being moved forward. The most frequently tripped problem (generally within 5 minutes) was the CIL commit race when the checkpoitn could commit before the transaction items were unlocked, resulting in stale information in log items and incorrect processing of stale buffers. I coul dnot reproduce this race condition with a debug kernel, which explain why my previous dbench testing did not uncover it. Less frequently tripped was the inode cluster freeing problem - it would take around 2 hours on average to trip this one, and it does not require delayed logging to hit. Nick, you'll need both patches to avoid the the hangs you reported - I've had your test case running now for just over ten hours without any issues so far. From SRS0+fbW6+59+fromorbit.com=dave@internode.on.net Tue Jun 8 10:18:14 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_62 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58FIEWn010807 for ; Tue, 8 Jun 2010 10:18:14 -0500 X-ASG-Debug-ID: 1280444618-743803bf0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id B77D511B052F for ; Thu, 29 Jul 2010 16:03:39 -0700 (PDT) Received: from mail.internode.on.net (bld-mail13.adl6.internode.on.net [150.101.137.98]) by cuda.sgi.com with ESMTP id qIsGAmdXbvBmMLDx for ; Thu, 29 Jul 2010 16:03:39 -0700 (PDT) Received: from dastard (unverified [121.44.18.238]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 33422391-1927428 for multiple; Fri, 30 Jul 2010 08:26:04 +0930 (CST) Received: from disturbed ([192.168.1.9]) by dastard with esmtp (Exim 4.71) (envelope-from ) id 1Oec1D-0000JH-RH; Fri, 30 Jul 2010 08:56:03 +1000 Received: from dave by disturbed with local (Exim 4.71) (envelope-from ) id 1Oec0z-0003na-MD; Fri, 30 Jul 2010 08:55:49 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: npiggin@kernel.de X-ASG-Orig-Subj: [PATCH 2/2] xfs: ensure we mark all inodes in a freed cluster XFS_ISTALE Subject: [PATCH 2/2] xfs: ensure we mark all inodes in a freed cluster XFS_ISTALE Date: Fri, 30 Jul 2010 08:55:46 +1000 Message-Id: <1280444146-14540-3-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1280444146-14540-1-git-send-email-david@fromorbit.com> References: <1280444146-14540-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: bld-mail13.adl6.internode.on.net[150.101.137.98] X-Barracuda-Start-Time: 1280444620 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36471 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean From: Dave Chinner Under heavy load parallel metadata loads (e.g. dbench), we can fail to mark all the inodes in a cluster being freed as XFS_ISTALE as we skip inodes we cannot get the XFS_ILOCK_EXCL or the flush lock on. When this happens and the inode cluster buffer has already been marked stale and freed, inode reclaim can try to write the inode out as it is dirty and not marked stale. This can result in writing th metadata to an freed extent, or in the case it has already been overwritten trigger a magic number check failure and return an EUCLEAN error such as: Filesystem "ram0": inode 0x442ba1 background reclaim flush failed with 117 Fix this by ensuring that we hoover up all in memory inodes in the cluster and mark them XFS_ISTALE when freeing the cluster. Signed-off-by: Dave Chinner --- fs/xfs/xfs_inode.c | 88 ++++++++++++++++++++++++++++----------------------- 1 files changed, 48 insertions(+), 40 deletions(-) diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 68415cb..abc50b6 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -1914,6 +1914,11 @@ xfs_iunlink_remove( return 0; } +/* + * A big issue when freeing the inode cluster is is that we _cannot_ skip any + * inodes that are in memory - they all must be marked stale and attached to + * the cluster buffer. + */ STATIC void xfs_ifree_cluster( xfs_inode_t *free_ip, @@ -1945,8 +1950,6 @@ xfs_ifree_cluster( } for (j = 0; j < nbufs; j++, inum += ninodes) { - int found = 0; - blkno = XFS_AGB_TO_DADDR(mp, XFS_INO_TO_AGNO(mp, inum), XFS_INO_TO_AGBNO(mp, inum)); @@ -1963,26 +1966,6 @@ xfs_ifree_cluster( XBF_LOCK); /* - * Walk the inodes already attached to the buffer and mark them - * stale. These will all have the flush locks held, so an - * in-memory inode walk can't lock them. - */ - lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *); - while (lip) { - if (lip->li_type == XFS_LI_INODE) { - iip = (xfs_inode_log_item_t *)lip; - ASSERT(iip->ili_logged == 1); - lip->li_cb = xfs_istale_done; - xfs_trans_ail_copy_lsn(mp->m_ail, - &iip->ili_flush_lsn, - &iip->ili_item.li_lsn); - xfs_iflags_set(iip->ili_inode, XFS_ISTALE); - found++; - } - lip = lip->li_bio_list; - } - - /* * For each inode in memory attempt to add it to the inode * buffer and set it up for being staled on buffer IO * completion. This is safe as we've locked out tail pushing @@ -1999,42 +1982,68 @@ xfs_ifree_cluster( /* Inode not in memory or stale, nothing to do */ if (!ip || xfs_iflags_test(ip, XFS_ISTALE)) { +next_inode: read_unlock(&pag->pag_ici_lock); continue; } - /* don't try to lock/unlock the current inode */ + /* + * Walk the inodes already attached to the buffer to + * see if this inode is already there. If so, mark it + * stale. These will all have the flush locks held, so an + * in-memory inode walk can't lock them. We do this + * inside the loop so that we know for certain that we + * don't encounter inodes with the flush lock already + * held and hence deadlock below. + */ + lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *); + do { + if (lip->li_type == XFS_LI_INODE) { + iip = (xfs_inode_log_item_t *)lip; + if (iip->ili_inode != ip) + continue; + ASSERT(iip->ili_logged == 1); + lip->li_cb = xfs_istale_done; + xfs_trans_ail_copy_lsn(mp->m_ail, + &iip->ili_flush_lsn, + &iip->ili_item.li_lsn); + xfs_iflags_set(iip->ili_inode, XFS_ISTALE); + goto next_inode; + } + } while ((lip = lip->li_bio_list) != NULL); + + /* + * Don't try to lock/unlock the current inode, but we + * _cannot_ skip the other inodes that we did not find + * in the list attached to the buffer and are not + * already marked stale. If we can't lock it, back off + * and retry. + */ + if (ip != free_ip && !xfs_ilock_nowait(ip, XFS_ILOCK_EXCL)) { read_unlock(&pag->pag_ici_lock); + delay(1); + i--; continue; } read_unlock(&pag->pag_ici_lock); - if (!xfs_iflock_nowait(ip)) { - if (ip != free_ip) - xfs_iunlock(ip, XFS_ILOCK_EXCL); - continue; - } - + xfs_iflock(ip); xfs_iflags_set(ip, XFS_ISTALE); - if (xfs_inode_clean(ip)) { - ASSERT(ip != free_ip); - xfs_ifunlock(ip); - xfs_iunlock(ip, XFS_ILOCK_EXCL); - continue; - } + /* + * we don't need to attach clean inodes or those only + * with unlogged changes (which we throw away, anyway). + */ iip = ip->i_itemp; - if (!iip) { - /* inode with unlogged changes only */ + if (!iip || xfs_inode_clean(ip)) { ASSERT(ip != free_ip); ip->i_update_core = 0; xfs_ifunlock(ip); xfs_iunlock(ip, XFS_ILOCK_EXCL); continue; } - found++; iip->ili_last_fields = iip->ili_format.ilf_fields; iip->ili_format.ilf_fields = 0; @@ -2049,8 +2058,7 @@ xfs_ifree_cluster( xfs_iunlock(ip, XFS_ILOCK_EXCL); } - if (found) - xfs_trans_stale_inode_buf(tp, bp); + xfs_trans_stale_inode_buf(tp, bp); xfs_trans_binval(tp, bp); } -- 1.7.1 From SRS0+V7Gk+59+fromorbit.com=david@internode.on.net Tue Jun 8 10:23:32 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58FNWxs010985 for ; Tue, 8 Jun 2010 10:23:32 -0500 X-ASG-Debug-ID: 1280444221-39ba03570000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id CD95D480914 for ; Thu, 29 Jul 2010 15:57:01 -0700 (PDT) Received: from mail.internode.on.net (bld-mail19.adl2.internode.on.net [150.101.137.104]) by cuda.sgi.com with ESMTP id tbzxsuwqnRLDsIWF for ; Thu, 29 Jul 2010 15:57:01 -0700 (PDT) Received: from dastard (unverified [121.44.18.238]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 33201331-1927428 for multiple; Fri, 30 Jul 2010 08:26:59 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1Oec27-0000JN-1J; Fri, 30 Jul 2010 08:56:59 +1000 Date: Fri, 30 Jul 2010 08:56:58 +1000 From: Dave Chinner To: Nick Piggin Cc: Nick Piggin , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: XFS hang in xlog_grant_log_space Subject: Re: XFS hang in xlog_grant_log_space Message-ID: <20100729225658.GM655@dastard> References: <20100722190100.GA22269@amd> <20100723135514.GJ32635@dastard> <20100727070538.GA2893@amd> <20100727080632.GA4958@amd> <20100727113626.GA2884@amd> <20100727133038.GP7362@dastard> <20100727145808.GQ7362@dastard> <20100728131744.GS7362@dastard> <20100729140546.GB7217@amd> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100729140546.GB7217@amd> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail19.adl2.internode.on.net[150.101.137.104] X-Barracuda-Start-Time: 1280444222 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36472 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jul 30, 2010 at 12:05:46AM +1000, Nick Piggin wrote: > On Wed, Jul 28, 2010 at 11:17:44PM +1000, Dave Chinner wrote: > > Something very strange is happening, and to make matters worse I > > cannot reproduce it with a debug kernel (ran for 3 hours without > > failing). Hence it smells like a race condition somewhere. > > > > I've reproduced it without delayed logging, so it is not directly > > related to that functionality. > > > > I've seen this warning: > > > > Filesystem "ram0": inode 0x704680 background reclaim flush failed with 117 > > > > Which indicates we failed to mark an inode stale when freeing an > > inode cluster, but I think I've fixed that and the problem still > > shows up. It's posible the last version didn't fix it, but.... > > I've seen that one a couple of times too. Keeps coming back each > time you echo 3 > /proc/sys/vm/drop_caches :) Yup - it's an unflushable inode that is pinning the tail of the log, hence causing the log space hangs. > > Now I've got the ag iterator rotor patch in place as well and > > possibly a different version of the cluster free fix to what I > > previously tested and it's now been running for almost half an hour. > > I can't say yet whether I've fixed the bug of just changed the > > timing enough to avoid it. I'll leave this test running over night > > and redo individual patch testing tomorrow. > > I reproduced it with fs_stress now too. Any patches I could test > for you just let me know. You should see them in a few minutes ;) Cheers, Dave. -- Dave Chinner david@fromorbit.com From SRS0+G/f0+59+fromorbit.com=david@internode.on.net Tue Jun 8 10:24:03 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58FO2bN011013 for ; Tue, 8 Jun 2010 10:24:02 -0500 X-ASG-Debug-ID: 1280444514-6d5901360000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 30D5B480939 for ; Thu, 29 Jul 2010 16:01:54 -0700 (PDT) Received: from mail.internode.on.net (bld-mail15.adl6.internode.on.net [150.101.137.100]) by cuda.sgi.com with ESMTP id WjtF4ZHRRBojALo4 for ; Thu, 29 Jul 2010 16:01:54 -0700 (PDT) Received: from dastard (unverified [121.44.18.238]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 21729772-1927428 for multiple; Fri, 30 Jul 2010 08:31:49 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1Oec6l-0000K2-Qp; Fri, 30 Jul 2010 09:01:47 +1000 Date: Fri, 30 Jul 2010 09:01:47 +1000 From: Dave Chinner To: Eli Morris Cc: xfs@oss.sgi.com, Emmanuel Florac X-ASG-Orig-Subj: Re: filesystem shrinks after using xfs_repair Subject: Re: filesystem shrinks after using xfs_repair Message-ID: <20100729230147.GN655@dastard> References: <20100724023922.GP32635@dastard> <777100A1-57DE-4DE0-B1F0-64977BD694AD@ucsc.edu> <20100726034545.GE655@dastard> <10B6F36F-BE01-4BF7-9815-2E8F6BF71B41@ucsc.edu> <20100726060604.GF7362@dastard> <20100726102036.GH7362@dastard> <0EC8FE5D-212C-4030-9D59-FDF38DF4E9EE@ucsc.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail15.adl6.internode.on.net[150.101.137.100] X-Barracuda-Start-Time: 1280444516 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36472 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu, Jul 29, 2010 at 12:22:30PM -0700, Eli Morris wrote: > I tried filling up the disk with data to see if that worked Ok and > it did, up until this point. There is something I don't understand > going on though. 'df' says that I have 381 GB free on the disk, > but I can't write to the disk anymore because it says it there > isn't any space left on it. Is this some insane round off error or > is there something going on here? If you haven't specified inode64, then all inodes are located below the 1TB mark. You've probably run out of space (or contiguous 16k chunks of free space) below 1TB. Using inode64 will avoid this - for a filesystem of that size, inode64 is probably a good idea as it will significantly improve performance. Keep in mind that legacy 32bit applications may have problems with 64 bit inode numbers, so if you have such applications (or 32 bit NFS clients) then you need to check carefully as to whether 64 bit inodes will work correctly or not.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From ermorris@ucsc.edu Tue Jun 8 10:38:15 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58FcFXx011777 for ; Tue, 8 Jun 2010 10:38:15 -0500 X-ASG-Debug-ID: 1280445368-439301b60000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from ucsc.edu (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 30ADF13E7FD1 for ; Thu, 29 Jul 2010 16:16:08 -0700 (PDT) Received: from ucsc.edu (email-prod-out-1.ucsc.edu [128.114.129.85]) by cuda.sgi.com with ESMTP id KGhL7WKHuYfZf13n for ; Thu, 29 Jul 2010 16:16:08 -0700 (PDT) X-UCSC-EDU-Sender: X-UCSC-EDU-Scanned-By: email-prod-out-1 X-UCSC-EDU-Submitted-Via: SMTP [128.114.125.112] X-UCSC-EDU-ClamAVCheck: not spam, ClamAV(signaure=none) X-UCSC-EDU-SpamCheck: No, score=-1.44 required=5 tests=ALL_TRUSTED X-UCSC-EDU-SpamScore: X-UCSC-EDU-SpamFlag: NO X-UCSC-EDU-SpamReport: -1.4 ALL_TRUSTED Passed through trusted hosts only via SMTP Received: from [128.114.125.112] (HELO ucsc.edu) by email-prod-out-1.ucsc.edu (CommuniGate Pro SMTP 5.2.13) with ESMTPS id 16512709; Thu, 29 Jul 2010 16:16:08 -0700 Received: by email-prod-fe-1.ucsc.edu (CommuniGate Pro PIPE 5.2.13) with PIPE id 358355253; Thu, 29 Jul 2010 16:16:08 -0700 X-UCSC-EDU-ClamAVCheck: not spam, ClamAV(signaure=none) Received: from [128.114.25.211] (account ermorris@ucsc.edu HELO dhcp-25-211.ucsc.edu) by email-prod-fe-1.ucsc.edu (CommuniGate Pro SMTP 5.2.13) with ESMTPSA id 358355243; Thu, 29 Jul 2010 16:15:55 -0700 X-ASG-Orig-Subj: Re: filesystem shrinks after using xfs_repair Subject: Re: filesystem shrinks after using xfs_repair Mime-Version: 1.0 (Apple Message framework v1081) Content-Type: text/plain; charset=us-ascii From: Eli Morris In-Reply-To: <20100729230147.GN655@dastard> Date: Thu, 29 Jul 2010 16:15:55 -0700 Cc: xfs@oss.sgi.com, Emmanuel Florac Content-Transfer-Encoding: quoted-printable Message-Id: <04349CE2-CF8B-463C-8B06-5E4E59E869B2@ucsc.edu> References: <20100724023922.GP32635@dastard> <777100A1-57DE-4DE0-B1F0-64977BD694AD@ucsc.edu> <20100726034545.GE655@dastard> <10B6F36F-BE01-4BF7-9815-2E8F6BF71B41@ucsc.edu> <20100726060604.GF7362@dastard> <20100726102036.GH7362@dastard> <0EC8FE5D-212C-4030-9D59-FDF38DF4E9EE@ucsc.edu> <20100729230147.GN655@dastard> To: Dave Chinner X-Mailer: Apple Mail (2.1081) X-Barracuda-Connect: email-prod-out-1.ucsc.edu[128.114.129.85] X-Barracuda-Start-Time: 1280445369 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36472 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Jul 29, 2010, at 4:01 PM, Dave Chinner wrote: > On Thu, Jul 29, 2010 at 12:22:30PM -0700, Eli Morris wrote: >> I tried filling up the disk with data to see if that worked Ok and >> it did, up until this point. There is something I don't understand >> going on though. 'df' says that I have 381 GB free on the disk, >> but I can't write to the disk anymore because it says it there >> isn't any space left on it. Is this some insane round off error or >> is there something going on here? >=20 > If you haven't specified inode64, then all inodes are located below > the 1TB mark. You've probably run out of space (or contiguous 16k > chunks of free space) below 1TB. Using inode64 will avoid this - for > a filesystem of that size, inode64 is probably a good idea as it > will significantly improve performance. >=20 > Keep in mind that legacy 32bit applications may have problems with > 64 bit inode numbers, so if you have such applications (or 32 bit > NFS clients) then you need to check carefully as to whether 64 bit > inodes will work correctly or not.... >=20 > Cheers, >=20 > Dave. > --=20 > Dave Chinner > david@fromorbit.com Hi Dave, Is that something I could do now, or only when the filesystem is = created? If I mount it with '-o inode64', can I mount it without that = later, or once I write to the filesystem like that, can I not go back to = mounting it in 32 bit mode?=20 Thanks again, Eli From michael.monnerie@is.it-management.at Tue Jun 8 12:02:11 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58H2BSJ015187 for ; Tue, 8 Jun 2010 12:02:11 -0500 X-ASG-Debug-ID: 1280450401-6d5d02fe0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 776FF480A81 for ; Thu, 29 Jul 2010 17:40:02 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id DToYAQJVNIiq6aua for ; Thu, 29 Jul 2010 17:40:02 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id 69B8C17A; Fri, 30 Jul 2010 02:40:00 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id 1F179401C33; Fri, 30 Jul 2010 02:40:00 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: filesystem shrinks after using xfs_repair Subject: Re: filesystem shrinks after using xfs_repair Date: Fri, 30 Jul 2010 02:39:55 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.34.1-zmi; KDE/4.3.5; x86_64; ; ) References: <20100729230147.GN655@dastard> <04349CE2-CF8B-463C-8B06-5E4E59E869B2@ucsc.edu> In-Reply-To: <04349CE2-CF8B-463C-8B06-5E4E59E869B2@ucsc.edu> Cc: Eli Morris MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1720842.L9Ubu44vQO"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201007300239.59574@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1280450402 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36478 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart1720842.L9Ubu44vQO Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable On Freitag, 30. Juli 2010 Eli Morris wrote: > Is that something I could do now, or only when the filesystem is > created? If I mount it with '-o inode64', can I mount it without > that later, or once I write to the filesystem like that, can I not > go back to mounting it in 32 bit mode?=20 =20 Once you mount with inode64, you can't go back. I'm not sure which applications are "broken", but I use inode64 for a=20 backup server where lots of Linux boxes connect to over NFS, and a Samba=20 for Windows PCs which has inode64, and at least didn't see any problem=20 over the years. That doesn't mean there isn't a problem, of course ;-) =2D-=20 mit freundlichen Gr=FCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 ****** Aktuelles Radiointerview! ****** http://www.it-podcast.at/aktuelle-sendung.html // Wir haben im Moment zwei H=E4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart1720842.L9Ubu44vQO Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkxSH18ACgkQzhSR9xwSCbTx9ACgxEv5/D1aNj5EhphOQ30ST+e1 iX4An2sW95zH6USiJLvNZws8lRJn7ZGe =ar5P -----END PGP SIGNATURE----- --nextPart1720842.L9Ubu44vQO-- From ermorris@ucsc.edu Tue Jun 8 13:11:28 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58IBRBu017649 for ; Tue, 8 Jun 2010 13:11:28 -0500 X-ASG-Debug-ID: 1280455012-3eaf002c0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from ucsc.edu (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id B3A1511B1906 for ; Thu, 29 Jul 2010 18:56:52 -0700 (PDT) Received: from ucsc.edu (email-prod-out-1.ucsc.edu [128.114.129.85]) by cuda.sgi.com with ESMTP id rM45fdy4EeBBluqY for ; Thu, 29 Jul 2010 18:56:52 -0700 (PDT) X-UCSC-EDU-Sender: X-UCSC-EDU-Scanned-By: email-prod-out-1 X-UCSC-EDU-Submitted-Via: SMTP [128.114.125.121] X-UCSC-EDU-ClamAVCheck: not spam, ClamAV(signaure=none) X-UCSC-EDU-SpamCheck: No, score=-1.44 required=5 tests=ALL_TRUSTED X-UCSC-EDU-SpamScore: X-UCSC-EDU-SpamFlag: NO X-UCSC-EDU-SpamReport: -1.4 ALL_TRUSTED Passed through trusted hosts only via SMTP Received: from [128.114.125.121] (HELO ucsc.edu) by email-prod-out-1.ucsc.edu (CommuniGate Pro SMTP 5.2.13) with ESMTPS id 16521294; Thu, 29 Jul 2010 18:49:18 -0700 Received: by email-prod-fe-2.ucsc.edu (CommuniGate Pro PIPE 5.2.13) with PIPE id 378828196; Thu, 29 Jul 2010 18:49:18 -0700 X-UCSC-EDU-ClamAVCheck: not spam, ClamAV(signaure=none) Received: from [98.234.26.5] (account ermorris@ucsc.edu HELO [10.0.1.3]) by email-prod-fe-2.ucsc.edu (CommuniGate Pro SMTP 5.2.13) with ESMTPSA id 378828178; Thu, 29 Jul 2010 18:49:05 -0700 X-ASG-Orig-Subj: Re: filesystem shrinks after using xfs_repair Subject: Re: filesystem shrinks after using xfs_repair Mime-Version: 1.0 (Apple Message framework v1081) Content-Type: text/plain; charset=iso-8859-1 From: Eli Morris In-Reply-To: <201007300239.59574@zmi.at> Date: Thu, 29 Jul 2010 18:49:04 -0700 Cc: Dave Chinner , xfs@oss.sgi.com Content-Transfer-Encoding: quoted-printable Message-Id: <562BA312-FBBA-492C-882F-2E0A93DA888F@ucsc.edu> References: <20100729230147.GN655@dastard> <04349CE2-CF8B-463C-8B06-5E4E59E869B2@ucsc.edu> <201007300239.59574@zmi.at> To: Michael Monnerie X-Mailer: Apple Mail (2.1081) X-Barracuda-Connect: email-prod-out-1.ucsc.edu[128.114.129.85] X-Barracuda-Start-Time: 1280455013 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0002 1.0000 -2.0197 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36483 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Jul 29, 2010, at 5:39 PM, Michael Monnerie wrote: > On Freitag, 30. Juli 2010 Eli Morris wrote: >> Is that something I could do now, or only when the filesystem is >> created? If I mount it with '-o inode64', can I mount it without >> that later, or once I write to the filesystem like that, can I not >> go back to mounting it in 32 bit mode?=20 >=20 > Once you mount with inode64, you can't go back. >=20 > I'm not sure which applications are "broken", but I use inode64 for a=20= > backup server where lots of Linux boxes connect to over NFS, and a = Samba=20 > for Windows PCs which has inode64, and at least didn't see any problem=20= > over the years. That doesn't mean there isn't a problem, of course ;-) >=20 > --=20 > mit freundlichen Gr=FCssen, > Michael Monnerie, Ing. BSc >=20 > it-management Internet Services > http://proteger.at [gesprochen: Prot-e-schee] > Tel: 0660 / 415 65 31 >=20 > ****** Aktuelles Radiointerview! ****** > http://www.it-podcast.at/aktuelle-sendung.html >=20 > // Wir haben im Moment zwei H=E4user zu verkaufen: > // http://zmi.at/langegg/ > // http://zmi.at/haus2009/ Thanks guys, That makes sense. cheers, Eli From willy@parisc-linux.org Tue Jun 8 14:15:36 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_33 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58JFZtU020712 for ; Tue, 8 Jun 2010 14:15:36 -0500 X-ASG-Debug-ID: 1280458860-3ec003580000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.parisc-linux.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id EAF07118F797 for ; Thu, 29 Jul 2010 20:01:00 -0700 (PDT) Received: from mail.parisc-linux.org (palinux.external.hp.com [192.25.206.14]) by cuda.sgi.com with ESMTP id 148Pt7dVn7fE842b for ; Thu, 29 Jul 2010 20:01:00 -0700 (PDT) Received: by mail.parisc-linux.org (Postfix, from userid 26919) id 4AC80494009; Thu, 29 Jul 2010 20:53:25 -0600 (MDT) Date: Thu, 29 Jul 2010 20:53:24 -0600 From: Matthew Wilcox To: Dave Chinner Cc: linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com, sandeen@sandeen.net X-ASG-Orig-Subj: Re: [PATCH] dio: track and serialise unaligned direct IO Subject: Re: [PATCH] dio: track and serialise unaligned direct IO Message-ID: <20100730025324.GO25774@parisc-linux.org> References: <1280443516-14448-1-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1280443516-14448-1-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-Barracuda-Connect: palinux.external.hp.com[192.25.206.14] X-Barracuda-Start-Time: 1280458860 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36487 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jul 30, 2010 at 08:45:16AM +1000, Dave Chinner wrote: > If we get two unaligned direct IO's to the same filesystem block > that is marked as a new allocation (i.e. buffer_new), then both IOs will > zero the portion of the block they are not writing data to. As a > result, when the IOs complete there will be a portion of the block > that contains zeros from the last IO to complete rather than the > data that should be there. Urgh. Yuck. > This is easily manifested by qemu using aio+dio with an unaligned > guest filesystem - every IO is unaligned and fileystem corruption is > encountered in the guest filesystem. xfstest 240 (from Eric Sandeen) > is also a simple reproducer. > > To avoid this problem, track unaligned IO that triggers sub-block zeroing and > check new incoming unaligned IO that require sub-block zeroing against that > list. If we get an overlap where the start and end of unaligned IOs hit the > same filesystem block, then we need to block the incoming IOs until the IO that > is zeroing the block completes. The blocked IO can then continue without > needing to do any zeroing and hence won't overwrite valid data with zeros. Urgh. Yuck. Could we perhaps handle this by making an IO instantiate a page cache page for partial writes, and forcing that portion of the IO through the page cache? The second IO would hit the same page and use the existing O_DIRECT vs page cache paths. -- Matthew Wilcox Intel Open Source Technology Centre "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." From npiggin@kernel.dk Tue Jun 8 15:22:08 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58KM8Tj023224 for ; Tue, 8 Jun 2010 15:22:08 -0500 X-ASG-Debug-ID: 1280462853-1439002a0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from ipmail05.adl6.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id DC9F011B1CF6 for ; Thu, 29 Jul 2010 21:07:34 -0700 (PDT) Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id 6oG1FOwfY692HiFf for ; Thu, 29 Jul 2010 21:07:34 -0700 (PDT) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvsEAC/qUUx5LclT/2dsb2JhbACgGHLAIIU5BA Received: from ppp121-45-201-83.lns20.cbr1.internode.on.net (HELO laptop.local0.net) ([121.45.201.83]) by ipmail05.adl6.internode.on.net with ESMTP; 30 Jul 2010 13:29:58 +0930 Received: by laptop.local0.net (Postfix, from userid 1000) id D48B62981C; Fri, 30 Jul 2010 13:59:55 +1000 (EST) Date: Fri, 30 Jul 2010 13:59:55 +1000 From: Nick Piggin To: Dave Chinner Cc: Nick Piggin , Nick Piggin , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: XFS hang in xlog_grant_log_space Subject: Re: XFS hang in xlog_grant_log_space Message-ID: <20100730035955.GA5271@amd> References: <20100722190100.GA22269@amd> <20100723135514.GJ32635@dastard> <20100727070538.GA2893@amd> <20100727080632.GA4958@amd> <20100727113626.GA2884@amd> <20100727133038.GP7362@dastard> <20100727145808.GQ7362@dastard> <20100728131744.GS7362@dastard> <20100729140546.GB7217@amd> <20100729225658.GM655@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100729225658.GM655@dastard> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1280462855 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36493 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jul 30, 2010 at 08:56:58AM +1000, Dave Chinner wrote: > On Fri, Jul 30, 2010 at 12:05:46AM +1000, Nick Piggin wrote: > > On Wed, Jul 28, 2010 at 11:17:44PM +1000, Dave Chinner wrote: > > > Something very strange is happening, and to make matters worse I > > > cannot reproduce it with a debug kernel (ran for 3 hours without > > > failing). Hence it smells like a race condition somewhere. > > > > > > I've reproduced it without delayed logging, so it is not directly > > > related to that functionality. > > > > > > I've seen this warning: > > > > > > Filesystem "ram0": inode 0x704680 background reclaim flush failed with 117 > > > > > > Which indicates we failed to mark an inode stale when freeing an > > > inode cluster, but I think I've fixed that and the problem still > > > shows up. It's posible the last version didn't fix it, but.... > > > > I've seen that one a couple of times too. Keeps coming back each > > time you echo 3 > /proc/sys/vm/drop_caches :) > > Yup - it's an unflushable inode that is pinning the tail of the log, > hence causing the log space hangs. > > > > Now I've got the ag iterator rotor patch in place as well and > > > possibly a different version of the cluster free fix to what I > > > previously tested and it's now been running for almost half an hour. > > > I can't say yet whether I've fixed the bug of just changed the > > > timing enough to avoid it. I'll leave this test running over night > > > and redo individual patch testing tomorrow. > > > > I reproduced it with fs_stress now too. Any patches I could test > > for you just let me know. > > You should see them in a few minutes ;) It's certainly not locking up like it used to... Thanks! From SRS0+S2Ha+60+fromorbit.com=david@internode.on.net Tue Jun 8 16:15:51 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_33 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58LFoOg024950 for ; Tue, 8 Jun 2010 16:15:51 -0500 X-ASG-Debug-ID: 1280465622-059600ad0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 53BF247C903 for ; Thu, 29 Jul 2010 21:53:42 -0700 (PDT) Received: from mail.internode.on.net (bld-mail19.adl2.internode.on.net [150.101.137.104]) by cuda.sgi.com with ESMTP id 39cGioPnP3J38Wvq for ; Thu, 29 Jul 2010 21:53:42 -0700 (PDT) Received: from dastard (unverified [121.44.18.238]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 33246270-1927428 for multiple; Fri, 30 Jul 2010 14:23:32 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1Oehb9-0000hB-3s; Fri, 30 Jul 2010 14:53:31 +1000 Date: Fri, 30 Jul 2010 14:53:31 +1000 From: Dave Chinner To: Matthew Wilcox Cc: linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com, sandeen@sandeen.net X-ASG-Orig-Subj: Re: [PATCH] dio: track and serialise unaligned direct IO Subject: Re: [PATCH] dio: track and serialise unaligned direct IO Message-ID: <20100730045331.GA2126@dastard> References: <1280443516-14448-1-git-send-email-david@fromorbit.com> <20100730025324.GO25774@parisc-linux.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100730025324.GO25774@parisc-linux.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail19.adl2.internode.on.net[150.101.137.104] X-Barracuda-Start-Time: 1280465624 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36496 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Thu, Jul 29, 2010 at 08:53:24PM -0600, Matthew Wilcox wrote: > On Fri, Jul 30, 2010 at 08:45:16AM +1000, Dave Chinner wrote: > > If we get two unaligned direct IO's to the same filesystem block > > that is marked as a new allocation (i.e. buffer_new), then both IOs will > > zero the portion of the block they are not writing data to. As a > > result, when the IOs complete there will be a portion of the block > > that contains zeros from the last IO to complete rather than the > > data that should be there. > > Urgh. Yuck. > > > This is easily manifested by qemu using aio+dio with an unaligned > > guest filesystem - every IO is unaligned and fileystem corruption is > > encountered in the guest filesystem. xfstest 240 (from Eric Sandeen) > > is also a simple reproducer. > > > > To avoid this problem, track unaligned IO that triggers sub-block zeroing and > > check new incoming unaligned IO that require sub-block zeroing against that > > list. If we get an overlap where the start and end of unaligned IOs hit the > > same filesystem block, then we need to block the incoming IOs until the IO that > > is zeroing the block completes. The blocked IO can then continue without > > needing to do any zeroing and hence won't overwrite valid data with zeros. > > Urgh. Yuck. It's better than silent data corruption. > Could we perhaps handle this by making an IO instantiate a page cache > page for partial writes, and forcing that portion of the IO through the > page cache? The second IO would hit the same page and use the existing > O_DIRECT vs page cache paths. I don't want any direct IO for XFS to go through the page cache - unaligned or not. using the page cache for the unaligned blocks would also be much worse for performance that this method because it turns unaligned direct IO into 3 IOs - the unaligned head block, the aligned body and the unaligned tail block. It would also be a performance hit you take on every single dio, whereas this way the hit is only taken when an overlap is detected. And besides, such decisions on whether to use buffered IO have to be made high up in the filesystem when we are deciding how to lock the inode for the dio - buffered IO requires exclusive locking, not the shared locking we do for dio writes. That further reduces the performance of unaligned direct IO even when there are no overlaps, and it's a solution that every filesystem needs to implement themselves in some way. I've looked at a couple of different ways to fix this (e.g. passing the unaligned state to get_blocks() to allow the filesystem to serialise there) but they've all died a horrible death of dodgy locking and hacky IO completion detection. not to mention requiring a different solution in every filesystem. This way may be a bit ugly, but it works, is isolated and seems to me to be the least-worst way of solving the problem. It could be made to scale better by making the tracking per-inode, but I don't think that growing the struct inode for this corner case is a good tradeoff, either... Cheers, Dave. -- Dave Chinner david@fromorbit.com From eflorac@intellique.com Tue Jun 8 18:49:27 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o58NnQAv030918 for ; Tue, 8 Jun 2010 18:49:26 -0500 X-ASG-Debug-ID: 1280474835-7a5b036c0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp3-g21.free.fr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 8E2F616653E3 for ; Fri, 30 Jul 2010 00:27:18 -0700 (PDT) Received: from smtp3-g21.free.fr (smtp3-g21.free.fr [212.27.42.3]) by cuda.sgi.com with ESMTP id kVvfiyhygYNQ7KfM for ; Fri, 30 Jul 2010 00:27:18 -0700 (PDT) Received: from galadriel.home (unknown [82.235.234.79]) by smtp3-g21.free.fr (Postfix) with ESMTP id B06CF8180B5; Fri, 30 Jul 2010 09:27:10 +0200 (CEST) Date: Fri, 30 Jul 2010 09:15:54 +0200 From: Emmanuel Florac To: Eli Morris Cc: Dave Chinner , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: filesystem shrinks after using xfs_repair Subject: Re: filesystem shrinks after using xfs_repair Message-ID: <20100730091554.2c9ca1ec@galadriel.home> In-Reply-To: <04349CE2-CF8B-463C-8B06-5E4E59E869B2@ucsc.edu> References: <20100724023922.GP32635@dastard> <777100A1-57DE-4DE0-B1F0-64977BD694AD@ucsc.edu> <20100726034545.GE655@dastard> <10B6F36F-BE01-4BF7-9815-2E8F6BF71B41@ucsc.edu> <20100726060604.GF7362@dastard> <20100726102036.GH7362@dastard> <0EC8FE5D-212C-4030-9D59-FDF38DF4E9EE@ucsc.edu> <20100729230147.GN655@dastard> <04349CE2-CF8B-463C-8B06-5E4E59E869B2@ucsc.edu> Organization: Intellique X-Mailer: Claws Mail 3.7.3 (GTK+ 2.20.1; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: smtp3-g21.free.fr[212.27.42.3] X-Barracuda-Start-Time: 1280474840 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36506 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Le Thu, 29 Jul 2010 16:15:55 -0700 vous =C3=A9criviez: > Is that something I could do now, or only when the filesystem is > created? If I mount it with '-o inode64', can I mount it without that > later, or once I write to the filesystem like that, can I not go back > to mounting it in 32 bit mode?=20 You use inode64 at mount, however there is no return. Once you have used a filesystem with "inode64", you must use it always. --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From BATV+217c815df121bef82d52+2532+infradead.org+hch@bombadil.srs.infradead.org Tue Jun 8 19:19:57 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o590JtAd031899 for ; Tue, 8 Jun 2010 19:19:57 -0500 X-ASG-Debug-ID: 1280476669-0b86011b0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id B58B61665ED4 for ; Fri, 30 Jul 2010 00:57:49 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id Rzjhi0Zks2YNgEK3 for ; Fri, 30 Jul 2010 00:57:49 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OekTS-000760-UM; Fri, 30 Jul 2010 07:57:46 +0000 Date: Fri, 30 Jul 2010 03:57:46 -0400 From: Christoph Hellwig To: Emmanuel Florac Cc: Eli Morris , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: filesystem shrinks after using xfs_repair Subject: Re: filesystem shrinks after using xfs_repair Message-ID: <20100730075746.GA20444@infradead.org> References: <20100726034545.GE655@dastard> <10B6F36F-BE01-4BF7-9815-2E8F6BF71B41@ucsc.edu> <20100726060604.GF7362@dastard> <20100726102036.GH7362@dastard> <0EC8FE5D-212C-4030-9D59-FDF38DF4E9EE@ucsc.edu> <20100729230147.GN655@dastard> <04349CE2-CF8B-463C-8B06-5E4E59E869B2@ucsc.edu> <20100730091554.2c9ca1ec@galadriel.home> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100730091554.2c9ca1ec@galadriel.home> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1280476669 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jul 30, 2010 at 09:15:54AM +0200, Emmanuel Florac wrote: > > Is that something I could do now, or only when the filesystem is > > created? If I mount it with '-o inode64', can I mount it without that > > later, or once I write to the filesystem like that, can I not go back > > to mounting it in 32 bit mode? > > You use inode64 at mount, however there is no return. Once you have > used a filesystem with "inode64", you must use it always. Recent enough kernel work fine with filesystems that inode64 was used on even if it's not specified anymore. From BATV+217c815df121bef82d52+2532+infradead.org+hch@bombadil.srs.infradead.org Tue Jun 8 20:11:46 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o591BjlU034818 for ; Tue, 8 Jun 2010 20:11:46 -0500 X-ASG-Debug-ID: 1280479778-0c9303590000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 5883A1585CA6 for ; Fri, 30 Jul 2010 01:49:38 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id g2vPWqJ8esiIJSSe for ; Fri, 30 Jul 2010 01:49:38 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OelHc-0001bT-6e; Fri, 30 Jul 2010 08:49:36 +0000 Date: Fri, 30 Jul 2010 04:49:36 -0400 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com, npiggin@kernel.de X-ASG-Orig-Subj: Re: [PATCH 1/2] xfs: unlock items before allowing the CIL to commit Subject: Re: [PATCH 1/2] xfs: unlock items before allowing the CIL to commit Message-ID: <20100730084936.GA28105@infradead.org> References: <1280444146-14540-1-git-send-email-david@fromorbit.com> <1280444146-14540-2-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1280444146-14540-2-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1280479778 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jul 30, 2010 at 08:55:45AM +1000, Dave Chinner wrote: > From: Dave Chinner > > When we commit a transaction using delayed logging, we need to > unlock the items in the transaciton before we unlock the CIL context > and allow it to be checkpointed. If we unlock them after we release > the CIl context lock, the CIL can checkpoint and complete before > we free the log items. This breaks stale buffer item unlock and > unpin processing as there is an implicit assumption that the unlock > will occur before the unpin. > > Also, some log items need to store the LSN of the transaction commit > in the item (inodes and EFIs) and so can race with other transaction > completions if we don't prevent the CIL from checkpointing before > the unlock occurs. Looks good. It also avoid keeping the items around over the CIL push, which should help with memory consumption under load. Reviewed-by: Christoph Hellwig From michael.monnerie@is.it-management.at Tue Jun 8 21:45:24 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o592jNnt037740 for ; Tue, 8 Jun 2010 21:45:24 -0500 X-ASG-Debug-ID: 1280485394-2ca8038d0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 44160481D58 for ; Fri, 30 Jul 2010 03:23:14 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id yVfPGoC1AgKc9pPf for ; Fri, 30 Jul 2010 03:23:14 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id 01C3D17F; Fri, 30 Jul 2010 12:23:13 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id AED03401C33; Fri, 30 Jul 2010 12:23:12 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: filesystem shrinks after using xfs_repair Subject: Re: filesystem shrinks after using xfs_repair Date: Fri, 30 Jul 2010 12:23:08 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.34.1-zmi; KDE/4.3.5; x86_64; ; ) Cc: Christoph Hellwig References: <20100726034545.GE655@dastard> <20100730091554.2c9ca1ec@galadriel.home> <20100730075746.GA20444@infradead.org> In-Reply-To: <20100730075746.GA20444@infradead.org> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1753717.5qSE4ucyiU"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201007301223.12134@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1280485395 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36518 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart1753717.5qSE4ucyiU Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable On Freitag, 30. Juli 2010 Christoph Hellwig wrote: > Recent enough kernel work fine with filesystems that inode64 was used > on even if it's not specified anymore. =20 Really? Since when exactly? That would be a nice feature. If we can=20 define it clearly, I could put that on the FAQ. But how does it truncate the numbers >int32 and avoid collisions? =2D-=20 mit freundlichen Gr=FCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 ****** Aktuelles Radiointerview! ****** http://www.it-podcast.at/aktuelle-sendung.html // Wir haben im Moment zwei H=E4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart1753717.5qSE4ucyiU Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkxSqBAACgkQzhSR9xwSCbT4kACg3UTEKeWmW8uUAXCMnGO1haDP bm4AoJ6ufW6GdLQEmek/iddPIyh2RMNY =5cTA -----END PGP SIGNATURE----- --nextPart1753717.5qSE4ucyiU-- From BATV+217c815df121bef82d52+2532+infradead.org+hch@bombadil.srs.infradead.org Tue Jun 8 21:49:55 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o592nsNW037874 for ; Tue, 8 Jun 2010 21:49:55 -0500 X-ASG-Debug-ID: 1280485668-58cc01420000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 82191481D7B for ; Fri, 30 Jul 2010 03:27:48 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id n3FjA2jUdFQCMn3v for ; Fri, 30 Jul 2010 03:27:48 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1Oemoc-0006Gk-TB; Fri, 30 Jul 2010 10:27:46 +0000 Date: Fri, 30 Jul 2010 06:27:46 -0400 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com, npiggin@kernel.de X-ASG-Orig-Subj: Re: [PATCH 2/2] xfs: ensure we mark all inodes in a freed cluster XFS_ISTALE Subject: Re: [PATCH 2/2] xfs: ensure we mark all inodes in a freed cluster XFS_ISTALE Message-ID: <20100730102746.GA10367@infradead.org> References: <1280444146-14540-1-git-send-email-david@fromorbit.com> <1280444146-14540-3-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1280444146-14540-3-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1280485668 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jul 30, 2010 at 08:55:46AM +1000, Dave Chinner wrote: > From: Dave Chinner > > Under heavy load parallel metadata loads (e.g. dbench), we can fail > to mark all the inodes in a cluster being freed as XFS_ISTALE as we > skip inodes we cannot get the XFS_ILOCK_EXCL or the flush lock on. > When this happens and the inode cluster buffer has already been > marked stale and freed, inode reclaim can try to write the inode out > as it is dirty and not marked stale. This can result in writing th > metadata to an freed extent, or in the case it has already > been overwritten trigger a magic number check failure and return an > EUCLEAN error such as: > > Filesystem "ram0": inode 0x442ba1 background reclaim flush failed with 117 > > Fix this by ensuring that we hoover up all in memory inodes in the > cluster and mark them XFS_ISTALE when freeing the cluster. Why do you move the loop over the log items around? From all that I can see the original place is much better as we just have to loop over the items once. Then once we look up the inodes in memory we skip over the inodes that already are stale, so the behaviour should be the same. Also instead of the i-- and continue for the lock failure an explicit goto retry would make it a lot more obvious. The actual change of not skipping inodes looks good to me. From BATV+217c815df121bef82d52+2532+infradead.org+hch@bombadil.srs.infradead.org Tue Jun 8 21:51:51 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o592po1R037938 for ; Tue, 8 Jun 2010 21:51:51 -0500 X-ASG-Debug-ID: 1280486239-0667019d0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 77ACB13357D8 for ; Fri, 30 Jul 2010 03:37:19 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id toM1WCI60NNsNCLR for ; Fri, 30 Jul 2010 03:37:19 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OemqV-0006KK-Fb; Fri, 30 Jul 2010 10:29:43 +0000 Date: Fri, 30 Jul 2010 06:29:43 -0400 From: Christoph Hellwig To: Michael Monnerie Cc: xfs@oss.sgi.com, Christoph Hellwig X-ASG-Orig-Subj: Re: filesystem shrinks after using xfs_repair Subject: Re: filesystem shrinks after using xfs_repair Message-ID: <20100730102943.GA24106@infradead.org> References: <20100726034545.GE655@dastard> <20100730091554.2c9ca1ec@galadriel.home> <20100730075746.GA20444@infradead.org> <201007301223.12134@zmi.at> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201007301223.12134@zmi.at> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1280486240 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jul 30, 2010 at 12:23:08PM +0200, Michael Monnerie wrote: > On Freitag, 30. Juli 2010 Christoph Hellwig wrote: > > Recent enough kernel work fine with filesystems that inode64 was used > > on even if it's not specified anymore. > > Really? Since when exactly? That would be a nice feature. If we can > define it clearly, I could put that on the FAQ. Linux 2.6.35 will be the first kernel with the bugfixes for this to work. > But how does it truncate the numbers >int32 and avoid collisions? It doesn't. Existing inodes won't nessecarily fit into 32-bits, but no new inodes above it will be allocated. From SRS0+Z1Mn+60+fromorbit.com=david@internode.on.net Tue Jun 8 22:16:17 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o593GGop038777 for ; Tue, 8 Jun 2010 22:16:17 -0500 X-ASG-Debug-ID: 1280487248-63b801800000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 0EE09166D7EC for ; Fri, 30 Jul 2010 03:54:08 -0700 (PDT) Received: from mail.internode.on.net (bld-mail18.adl2.internode.on.net [150.101.137.103]) by cuda.sgi.com with ESMTP id WmhOH4CtLflCoDVj for ; Fri, 30 Jul 2010 03:54:08 -0700 (PDT) Received: from dastard (unverified [121.44.18.238]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 33266135-1927428 for multiple; Fri, 30 Jul 2010 20:24:05 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1OenE4-00012A-9w; Fri, 30 Jul 2010 20:54:04 +1000 Date: Fri, 30 Jul 2010 20:54:04 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com, npiggin@kernel.de X-ASG-Orig-Subj: Re: [PATCH 2/2] xfs: ensure we mark all inodes in a freed cluster XFS_ISTALE Subject: Re: [PATCH 2/2] xfs: ensure we mark all inodes in a freed cluster XFS_ISTALE Message-ID: <20100730105404.GB2126@dastard> References: <1280444146-14540-1-git-send-email-david@fromorbit.com> <1280444146-14540-3-git-send-email-david@fromorbit.com> <20100730102746.GA10367@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100730102746.GA10367@infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail18.adl2.internode.on.net[150.101.137.103] X-Barracuda-Start-Time: 1280487250 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36520 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jul 30, 2010 at 06:27:46AM -0400, Christoph Hellwig wrote: > On Fri, Jul 30, 2010 at 08:55:46AM +1000, Dave Chinner wrote: > > From: Dave Chinner > > > > Under heavy load parallel metadata loads (e.g. dbench), we can fail > > to mark all the inodes in a cluster being freed as XFS_ISTALE as we > > skip inodes we cannot get the XFS_ILOCK_EXCL or the flush lock on. > > When this happens and the inode cluster buffer has already been > > marked stale and freed, inode reclaim can try to write the inode out > > as it is dirty and not marked stale. This can result in writing th > > metadata to an freed extent, or in the case it has already > > been overwritten trigger a magic number check failure and return an > > EUCLEAN error such as: > > > > Filesystem "ram0": inode 0x442ba1 background reclaim flush failed with 117 > > > > Fix this by ensuring that we hoover up all in memory inodes in the > > cluster and mark them XFS_ISTALE when freeing the cluster. > > Why do you move the loop over the log items around? From all that > I can see the original place is much better as we just have to loop > over the items once. Then once we look up the inodes in memory > we skip over the inodes that already are stale, so the behaviour > should be the same. You are right - it is doing the same as the old code where it is marking them stale first. I rearranged some code when trying a couple of crazy ideas, but forgot to move it back when I had somethign that fixed the bug. I'll move it back - that shoul dmake the diff lots smaller. > Also instead of the i-- and continue for the > lock failure an explicit goto retry would make it a lot more obvious. Good point. I fix it up and test it again. Cheers, Dave. -- Dave Chinner david@fromorbit.com From michael.monnerie@is.it-management.at Wed Jun 9 00:02:25 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5952O7b044613 for ; Wed, 9 Jun 2010 00:02:25 -0500 X-ASG-Debug-ID: 1280493616-76a9002f0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id EEA5B4824DD for ; Fri, 30 Jul 2010 05:40:16 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id qIzVW50rethJ6SOJ for ; Fri, 30 Jul 2010 05:40:16 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id 119F1422; Fri, 30 Jul 2010 14:40:15 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id B077D401C33; Fri, 30 Jul 2010 14:40:14 +0200 (CEST) From: Michael Monnerie Organization: it-management http://it-management.at To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: filesystem shrinks after using xfs_repair Subject: Re: filesystem shrinks after using xfs_repair Date: Fri, 30 Jul 2010 14:40:13 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.34.1-zmi; KDE/4.3.5; x86_64; ; ) Cc: Christoph Hellwig References: <20100726034545.GE655@dastard> <201007301223.12134@zmi.at> <20100730102943.GA24106@infradead.org> In-Reply-To: <20100730102943.GA24106@infradead.org> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1995857.AVg1TNjj4R"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201007301440.14195@zmi.at> X-Barracuda-Connect: mailsrv1.zmi.at[212.69.164.54] X-Barracuda-Start-Time: 1280493616 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -1.92 X-Barracuda-Spam-Status: No, SCORE=-1.92 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36526 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean --nextPart1995857.AVg1TNjj4R Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable On Freitag, 30. Juli 2010 Christoph Hellwig wrote: > On Fri, Jul 30, 2010 at 12:23:08PM +0200, Michael Monnerie wrote: > > On Freitag, 30. Juli 2010 Christoph Hellwig wrote: > > > Recent enough kernel work fine with filesystems that inode64 was > > > used on even if it's not specified anymore. > > > > =20 > > Really? Since when exactly? That would be a nice feature. If we > > can define it clearly, I could put that on the FAQ. >=20 > Linux 2.6.35 will be the first kernel with the bugfixes for this to > work. Hihi, *rofl*. That's what developers mean by "recent enough kernel": It=20 will be "in the next release to come". :-) > > But how does it truncate the numbers >int32 and avoid collisions? >=20 > It doesn't. Existing inodes won't nessecarily fit into 32-bits, but > no new inodes above it will be allocated. OK, sounds simple. I wrote two new FAQ entries: http://xfs.org/index.php/XFS_FAQ#Q:_What_is_the_inode64_mount_option_for.3F Could "all who know better than me" please verify if the information is=20 correct? =2D-=20 mit freundlichen Gr=FCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 ****** Aktuelles Radiointerview! ****** http://www.it-podcast.at/aktuelle-sendung.html // Wir haben im Moment zwei H=E4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart1995857.AVg1TNjj4R Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkxSyC4ACgkQzhSR9xwSCbS1ngCdHiLDPnvYF3I74+dG3trleuSc 3nQAoJH/jWBXwXTds9OHDnrEuIVOmF7r =BTn9 -----END PGP SIGNATURE----- --nextPart1995857.AVg1TNjj4R-- From eflorac@intellique.com Wed Jun 9 00:39:28 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o595dS8K046674 for ; Wed, 9 Jun 2010 00:39:28 -0500 X-ASG-Debug-ID: 1280495835-123d00ab0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from smtp4-g21.free.fr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id ED33E1E3717E for ; Fri, 30 Jul 2010 06:17:19 -0700 (PDT) Received: from smtp4-g21.free.fr (smtp4-g21.free.fr [212.27.42.4]) by cuda.sgi.com with ESMTP id 285vFaRpFLmzBFu5 for ; Fri, 30 Jul 2010 06:17:19 -0700 (PDT) Received: from harpe.intellique.com (unknown [82.225.196.72]) by smtp4-g21.free.fr (Postfix) with ESMTP id 29A584C80A5; Fri, 30 Jul 2010 15:17:10 +0200 (CEST) Date: Fri, 30 Jul 2010 15:17:16 +0200 From: Emmanuel Florac To: Christoph Hellwig Cc: Michael Monnerie , Christoph Hellwig , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: filesystem shrinks after using xfs_repair Subject: Re: filesystem shrinks after using xfs_repair Message-ID: <20100730151716.3a075ef8@harpe.intellique.com> In-Reply-To: <20100730102943.GA24106@infradead.org> References: <20100726034545.GE655@dastard> <20100730091554.2c9ca1ec@galadriel.home> <20100730075746.GA20444@infradead.org> <201007301223.12134@zmi.at> <20100730102943.GA24106@infradead.org> Organization: Intellique X-Mailer: Claws Mail 3.7.3 (GTK+ 2.16.6; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: smtp4-g21.free.fr[212.27.42.4] X-Barracuda-Start-Time: 1280495841 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36528 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean Le Fri, 30 Jul 2010 06:29:43 -0400 Christoph Hellwig =E9crivait: > Linux 2.6.35 will be the first kernel with the bugfixes for this to > work. Then it's hardly a feature we may count on for a while :) --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From pbadari@gmail.com Wed Jun 9 05:05:08 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,FREEMAIL_FROM, J_CHICKENPOX_33,J_CHICKENPOX_63 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o59A58Mx058419 for ; Wed, 9 Jun 2010 05:05:08 -0500 X-ASG-Debug-ID: 1280511780-5b30011c0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from e34.co.us.ibm.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 7FAE6483B47 for ; Fri, 30 Jul 2010 10:43:00 -0700 (PDT) Received: from e34.co.us.ibm.com (e34.co.us.ibm.com [32.97.110.152]) by cuda.sgi.com with ESMTP id xVdbu4SQM5l9W9Oq for ; Fri, 30 Jul 2010 10:43:00 -0700 (PDT) Received: from d03relay01.boulder.ibm.com (d03relay01.boulder.ibm.com [9.17.195.226]) by e34.co.us.ibm.com (8.14.4/8.13.1) with ESMTP id o6UHYMxh019639 for ; Fri, 30 Jul 2010 11:34:22 -0600 Received: from d03av04.boulder.ibm.com (d03av04.boulder.ibm.com [9.17.195.170]) by d03relay01.boulder.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id o6UHggu9120988 for ; Fri, 30 Jul 2010 11:42:42 -0600 Received: from d03av04.boulder.ibm.com (loopback [127.0.0.1]) by d03av04.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id o6UHgbkx008325 for ; Fri, 30 Jul 2010 11:42:37 -0600 Received: from [9.47.17.100] (badari-desktop.beaverton.ibm.com [9.47.17.100]) by d03av04.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id o6UHgaKF008287; Fri, 30 Jul 2010 11:42:36 -0600 X-ASG-Orig-Subj: Re: [PATCH] dio: track and serialise unaligned direct IO Subject: Re: [PATCH] dio: track and serialise unaligned direct IO From: Badari Pulavarty To: Dave Chinner Cc: linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com, sandeen@sandeen.net In-Reply-To: <1280443516-14448-1-git-send-email-david@fromorbit.com> References: <1280443516-14448-1-git-send-email-david@fromorbit.com> Content-Type: text/plain; charset=utf-8 Date: Fri, 30 Jul 2010 10:43:09 -0700 Message-Id: <1280511789.16484.18.camel@badari-desktop> Mime-Version: 1.0 X-Mailer: Evolution 2.22.3.1 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: e34.co.us.ibm.com[32.97.110.152] X-Barracuda-Start-Time: 1280511781 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36546 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, 2010-07-30 at 08:45 +1000, Dave Chinner wrote: > From: Dave Chinner > > If we get two unaligned direct IO's to the same filesystem block > that is marked as a new allocation (i.e. buffer_new), then both IOs will > zero the portion of the block they are not writing data to. As a > result, when the IOs complete there will be a portion of the block > that contains zeros from the last IO to complete rather than the > data that should be there. > > This is easily manifested by qemu using aio+dio with an unaligned > guest filesystem - every IO is unaligned and fileystem corruption is > encountered in the guest filesystem. xfstest 240 (from Eric Sandeen) > is also a simple reproducer. > > To avoid this problem, track unaligned IO that triggers sub-block zeroing and > check new incoming unaligned IO that require sub-block zeroing against that > list. If we get an overlap where the start and end of unaligned IOs hit the > same filesystem block, then we need to block the incoming IOs until the IO that > is zeroing the block completes. The blocked IO can then continue without > needing to do any zeroing and hence won't overwrite valid data with zeros. > > Signed-off-by: Dave Chinner I can confirm that, it fixes corruption of my VM images when using AIO +DIO. (cache=none,aio=native). I haven't reviewed the patch closely, but 1) can we do this only for AIO+DIO combination ? For regular DIO, we should have all the IOs serialized by i_mutex anyway.. 2) Having a single global list (for all devices) might cause scaling issues. 3) Are you dropping i_mutex when you are waiting for the zero-out to finish ? Thanks, Badari > --- > fs/direct-io.c | 152 +++++++++++++++++++++++++++++++++++++++++++++++++++++-- > 1 files changed, 146 insertions(+), 6 deletions(-) > > diff --git a/fs/direct-io.c b/fs/direct-io.c > index a10cb91..611524e 100644 > --- a/fs/direct-io.c > +++ b/fs/direct-io.c > @@ -71,6 +71,9 @@ struct dio { > unsigned start_zero_done; /* flag: sub-blocksize zeroing has > been performed at the start of a > write */ > +#define LAST_SECTOR ((sector_t)-1LL) > + sector_t zero_block_front; /* fs block we are zeroing at front */ > + sector_t zero_block_rear; /* fs block we are zeroing at rear */ > int pages_in_io; /* approximate total IO pages */ > size_t size; /* total request size (doesn't change)*/ > sector_t block_in_file; /* Current offset into the underlying > @@ -135,6 +138,101 @@ struct dio { > struct page *pages[DIO_PAGES]; /* page buffer */ > }; > > + > +/* > + * record fs blocks we are doing zeroing on in a zero block list. > + * unaligned IO is not very performant and so is relatively uncommon, > + * so a global list should be sufficent to track them. > + */ > +struct dio_zero_block { > + struct list_head dio_list; /* list of io in progress */ > + sector_t zero_block; /* block being zeroed */ > + struct dio *dio; /* owner dio */ > + wait_queue_head_t wq; /* New IO block here */ > + atomic_t ref; /* reference count */ > +}; > + > +DEFINE_SPINLOCK(dio_zero_block_lock); > +LIST_HEAD(dio_zero_block_list); > + > +/* > + * Add a filesystem block to the list of blocks we are tracking. > + */ > +static void > +dio_start_zero_block(struct dio *dio, sector_t zero_block) > +{ > + struct dio_zero_block *zb; > + > + zb = kmalloc(sizeof(*zb), GFP_NOIO); > + if (!zb) > + return; > + INIT_LIST_HEAD(&zb->dio_list); > + init_waitqueue_head(&zb->wq); > + zb->zero_block = zero_block; > + zb->dio = dio; > + atomic_set(&zb->ref, 1); > + > + spin_lock(&dio_zero_block_lock); > + list_add(&zb->dio_list, &dio_zero_block_list); > + spin_unlock(&dio_zero_block_lock); > +} > + > +static void > +dio_drop_zero_block(struct dio_zero_block *zb) > +{ > + if (atomic_dec_and_test(&zb->ref)) > + kfree(zb); > +} > + > +/* > + * Check whether a filesystem block is currently being zeroed, and if it is > + * wait for it to complete before returning. If we waited for a block being > + * zeroed, return 1 to indicate that the block is already initialised, > + * otherwise return 0 to indicate that it needs zeroing. > + */ > +static int > +dio_wait_zero_block(struct dio *dio, sector_t zero_block) > +{ > + struct dio_zero_block *zb; > + > + spin_lock(&dio_zero_block_lock); > + list_for_each_entry(zb, &dio_zero_block_list, dio_list) { > + if (zb->dio->inode != dio->inode) > + continue; > + if (zb->zero_block != zero_block) > + continue; > + atomic_inc(&zb->ref); > + spin_unlock(&dio_zero_block_lock); > + wait_event(zb->wq, (list_empty(&zb->dio_list))); > + dio_drop_zero_block(zb); > + return 1; > + } > + spin_unlock(&dio_zero_block_lock); > + return 0; > +} > + > +/* > + * Complete a block zeroing and wake up anyone waiting for it. > + */ > +static void dio_end_zero_block(struct dio *dio, sector_t zero_block) > +{ > + struct dio_zero_block *zb; > + > + spin_lock(&dio_zero_block_lock); > + list_for_each_entry(zb, &dio_zero_block_list, dio_list) { > + if (zb->dio->inode != dio->inode) > + continue; > + if (zb->zero_block != zero_block) > + continue; > + list_del_init(&zb->dio_list); > + spin_unlock(&dio_zero_block_lock); > + wake_up(&zb->wq); > + dio_drop_zero_block(zb); > + return; > + } > + spin_unlock(&dio_zero_block_lock); > +} > + > /* > * How many pages are in the queue? > */ > @@ -253,6 +351,11 @@ static int dio_complete(struct dio *dio, loff_t offset, int ret, bool is_async) > aio_complete(dio->iocb, ret, 0); > } > > + if (dio->zero_block_front != LAST_SECTOR) > + dio_end_zero_block(dio, dio->zero_block_front); > + if (dio->zero_block_rear != LAST_SECTOR) > + dio_end_zero_block(dio, dio->zero_block_rear); > + > if (dio->flags & DIO_LOCKING) > /* lockdep: non-owner release */ > up_read_non_owner(&dio->inode->i_alloc_sem); > @@ -777,6 +880,12 @@ static void clean_blockdev_aliases(struct dio *dio) > * block with zeros. This happens only if user-buffer, fileoffset or > * io length is not filesystem block-size multiple. > * > + * We need to track the blocks we are zeroing. If we have concurrent IOs that hit > + * the same start or end block, we do not want all the IOs to zero the portion > + * they are not writing data to as that will overwrite data from the other IOs. > + * Hence we need to block until the first unaligned IO completes before we can > + * continue (without executing any zeroing). > + * > * `end' is zero if we're doing the start of the IO, 1 at the end of the > * IO. > */ > @@ -784,8 +893,8 @@ static void dio_zero_block(struct dio *dio, int end) > { > unsigned dio_blocks_per_fs_block; > unsigned this_chunk_blocks; /* In dio_blocks */ > - unsigned this_chunk_bytes; > struct page *page; > + sector_t fsblock; > > dio->start_zero_done = 1; > if (!dio->blkfactor || !buffer_new(&dio->map_bh)) > @@ -797,17 +906,41 @@ static void dio_zero_block(struct dio *dio, int end) > if (!this_chunk_blocks) > return; > > + if (end) > + this_chunk_blocks = dio_blocks_per_fs_block - this_chunk_blocks; > + > /* > * We need to zero out part of an fs block. It is either at the > - * beginning or the end of the fs block. > + * beginning or the end of the fs block, but first we need to check if > + * there is already a zeroing being run on this block. > + * > + * If we are doing a sub-block IO (i.e. zeroing both front and rear of > + * the same block) we don't need to wait or set a gaurd for the rear of > + * the block as we already have one set. > */ > - if (end) > - this_chunk_blocks = dio_blocks_per_fs_block - this_chunk_blocks; > + fsblock = dio->block_in_file >> dio->blkfactor; > + if (!end || dio->zero_block_front != fsblock) { > > - this_chunk_bytes = this_chunk_blocks << dio->blkbits; > + /* wait for any zeroing already in progress */ > + if (dio_wait_zero_block(dio, fsblock)) { > + /* skip the range we would have zeroed. */ > + dio->next_block_for_io += this_chunk_blocks; > + return; > + } > + > + /* > + * we are going to zero stuff now, so set a guard to catch > + * others that might want to zero the same block. > + */ > + dio_start_zero_block(dio, fsblock); > + if (end) > + dio->zero_block_rear = fsblock; > + else > + dio->zero_block_front = fsblock; > + } > > page = ZERO_PAGE(0); > - if (submit_page_section(dio, page, 0, this_chunk_bytes, > + if (submit_page_section(dio, page, 0, this_chunk_blocks << dio->blkbits, > dio->next_block_for_io)) > return; > > @@ -1191,6 +1324,13 @@ __blockdev_direct_IO_newtrunc(int rw, struct kiocb *iocb, struct inode *inode, > */ > memset(dio, 0, offsetof(struct dio, pages)); > > + /* > + * zero_blocks need to initialised to largeѕt value to avoid > + * matching the zero block accidentally. > + */ > + dio->zero_block_front = LAST_SECTOR; > + dio->zero_block_rear = LAST_SECTOR; > + > dio->flags = flags; > if (dio->flags & DIO_LOCKING) { > /* watch out for a 0 len io from a tricksy fs */ > -- > 1.7.1 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html From aelder@sgi.com Wed Jun 9 09:07:55 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,J_CHICKENPOX_63, J_CHICKENPOX_65,J_CHICKENPOX_66 autolearn=no version=3.4.0-r929098 Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o59E7sF4068120 for ; Wed, 9 Jun 2010 09:07:55 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay1.corp.sgi.com (Postfix) with ESMTP id 891E18F804B for ; Fri, 30 Jul 2010 14:45:46 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o6ULjkMY008061 for ; Fri, 30 Jul 2010 16:45:46 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o6ULjk4v008060 for xfs@oss.sgi.com; Fri, 30 Jul 2010 16:45:46 -0500 From: Alex Elder Message-Id: <201007302145.o6ULjk4v008060@stout.americas.sgi.com> Date: Fri, 30 Jul 2010 16:45:45 -0500 To: xfs@oss.sgi.com Subject: [PATCH] xfsprogs: fix depend targets User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean There's no need to re-make the dependency files all the time. Make it so the "depend" target rebuilds the ".dep" file only if necessary. Also change the name of the dependency file created for "ltdepend" to be ".ltdep". Signed-off-by: Alex Elder --- Makefile | 6 +++--- include/buildrules | 14 +++++++++----- libdisk/Makefile | 2 +- libhandle/Makefile | 2 +- libxcmd/Makefile | 2 +- libxfs/Makefile | 2 +- libxlog/Makefile | 2 +- 7 files changed, 17 insertions(+), 13 deletions(-) Index: b/Makefile =================================================================== --- a/Makefile +++ b/Makefile @@ -30,9 +30,9 @@ SRCTAR = $(PKG_NAME)-$(PKG_VERSION).tar. CONFIGURE = aclocal.m4 configure config.guess config.sub install-sh ltmain.sh LSRCFILES = configure.in release.sh README VERSION $(CONFIGURE) -LDIRT = config.log .dep config.status config.cache confdefs.h conftest* \ - built .census install.* install-dev.* *.gz autom4te.cache/* libtool \ - include/builddefs include/platform_defs.h +LDIRT = config.log .ltdep .dep config.status config.cache confdefs.h \ + conftest* built .census install.* install-dev.* *.gz \ + autom4te.cache/* libtool include/builddefs include/platform_defs.h ifeq ($(HAVE_BUILDDEFS), yes) LDIRDIRT = $(SRCDIR) Index: b/include/buildrules =================================================================== --- a/include/buildrules +++ b/include/buildrules @@ -7,7 +7,7 @@ _BUILDRULES_INCLUDED_ = 1 include $(TOPDIR)/include/builddefs clean clobber : $(addsuffix -clean,$(SUBDIRS)) - @rm -f $(DIRT) .dep + @rm -f $(DIRT) .ltdep .dep @rm -fr $(DIRDIRT) %-clean: @echo "Cleaning $*" @@ -94,10 +94,14 @@ $(_FORCE): MAKEDEP := $(MAKEDEPEND) $(CFLAGS) -ltdepend: $(CFILES) $(HFILES) - @echo " [DEP]" - $(Q)$(MAKEDEP) $(CFILES) | $(SED) -e 's,^\([^:]*\)\.o,\1.lo,' > .dep +ltdepend: .ltdep + +.ltdep: $(CFILES) $(HFILES) + @echo " [LTDEP]" + $(Q)$(MAKEDEP) $(CFILES) | $(SED) -e 's,^\([^:]*\)\.o,\1.lo,' > .ltdep + +depend: .dep -depend: $(CFILES) $(HFILES) +.dep: $(CFILES) $(HFILES) @echo " [DEP]" $(Q)$(MAKEDEP) $(CFILES) > .dep Index: b/libdisk/Makefile =================================================================== --- a/libdisk/Makefile +++ b/libdisk/Makefile @@ -30,4 +30,4 @@ install-dev: default install-qa: install-dev --include .dep +-include .ltdep Index: b/libhandle/Makefile =================================================================== --- a/libhandle/Makefile +++ b/libhandle/Makefile @@ -27,4 +27,4 @@ install-dev: default install-qa: install-dev --include .dep +-include .ltdep Index: b/libxcmd/Makefile =================================================================== --- a/libxcmd/Makefile +++ b/libxcmd/Makefile @@ -34,4 +34,4 @@ include $(BUILDRULES) install install-dev install-qa: default --include .dep +-include .ltdep Index: b/libxfs/Makefile =================================================================== --- a/libxfs/Makefile +++ b/libxfs/Makefile @@ -48,4 +48,4 @@ install-dev: default install-qa: default --include .dep +-include .ltdep Index: b/libxlog/Makefile =================================================================== --- a/libxlog/Makefile +++ b/libxlog/Makefile @@ -21,4 +21,4 @@ include $(BUILDRULES) install install-dev install-qa: default --include .dep +-include .ltdep From aelder@sgi.com Wed Jun 9 09:10:56 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,J_CHICKENPOX_63, J_CHICKENPOX_65,J_CHICKENPOX_66 autolearn=no version=3.4.0-r929098 Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o59EAuo1068215 for ; Wed, 9 Jun 2010 09:10:56 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay2.corp.sgi.com (Postfix) with ESMTP id EFF163040C8 for ; Fri, 30 Jul 2010 14:48:47 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o6ULmlbT008273 for ; Fri, 30 Jul 2010 16:48:47 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o6ULmlpA008272 for xfs@oss.sgi.com; Fri, 30 Jul 2010 16:48:47 -0500 From: Alex Elder Message-Id: <201007302148.o6ULmlpA008272@stout.americas.sgi.com> Date: Fri, 30 Jul 2010 16:48:47 -0500 To: xfs@oss.sgi.com Subject: [PATCH] xfsdump: fix depend targets User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean There's no need to re-make the dependency files all the time. Make it so the "depend" target rebuilds the ".dep" file only if necessary. Also change the name of the dependency file created for "ltdepend" to be ".ltdep". Signed-off-by: Alex Elder --- Makefile | 6 +++--- dump/Makefile | 2 +- include/buildrules | 16 ++++++++++------ inventory/Makefile | 2 +- librmt/Makefile | 2 +- restore/Makefile | 2 +- 6 files changed, 17 insertions(+), 13 deletions(-) Index: b/Makefile =================================================================== --- a/Makefile +++ b/Makefile @@ -30,9 +30,9 @@ SRCTAR = $(PKG_NAME)-$(PKG_VERSION).tar. CONFIGURE = aclocal.m4 configure config.guess config.sub install-sh ltmain.sh LSRCFILES = configure.in release.sh README VERSION $(CONFIGURE) -LDIRT = config.log .dep config.status config.cache confdefs.h conftest* \ - built .census install.* install-dev.* *.gz autom4te.cache/* libtool \ - include/builddefs include/config.h +LDIRT = config.log .ltdep .dep config.status config.cache confdefs.h \ + conftest* built .census install.* install-dev.* *.gz \ + autom4te.cache/* libtool include/builddefs include/config.h ifeq ($(HAVE_BUILDDEFS), yes) LDIRDIRT = $(SRCDIR) Index: b/dump/Makefile =================================================================== --- a/dump/Makefile +++ b/dump/Makefile @@ -105,7 +105,7 @@ install: default $(INSTALL) -S $(PKG_ROOT_SBIN_DIR)/$(LTCOMMAND) $(PKG_SBIN_DIR)/$(LTCOMMAND) install-dev: -depend: $(COMMINCL) $(COMMON) $(INVINCL) $(INVCOMMON) +.dep: $(COMMINCL) $(COMMON) $(INVINCL) $(INVCOMMON) $(COMMINCL) $(COMMON): @echo " [LN] $@" Index: b/include/buildrules =================================================================== --- a/include/buildrules +++ b/include/buildrules @@ -7,7 +7,7 @@ _BUILDRULES_INCLUDED_ = 1 include $(TOPDIR)/include/builddefs clean clobber : $(addsuffix -clean,$(SUBDIRS)) - @rm -f $(DIRT) .dep + @rm -f $(DIRT) .ltdep .dep @rm -fr $(DIRDIRT) %-clean: @echo "Cleaning $*" @@ -94,10 +94,14 @@ $(_FORCE): MAKEDEP := $(MAKEDEPEND) $(CFLAGS) -ltdepend: $(CFILES) $(HFILES) - @echo " [DEP]" - $(Q)$(MAKEDEP) $(CFILES) | $(SED) -e 's,^\([^:]*\)\.o,\1.lo,' > .dep +ltdepend: .ltdep + +.ltdep: $(CFILES) $(HFILES) + @echo " [LTDEP]" + $(Q)$(MAKEDEP) $(CFILES) | $(SED) -e 's,^\([^:]*\)\.o,\1.lo,' > .ltdep + +depend: .dep -depend: $(CFILES) $(HFILES) +.dep: $(CFILES) $(HFILES) @echo " [DEP]" - $(Q)$(MAKEDEP) $(CFILES) > .dep + $(Q)[ -n "$(CFILES)" ] && $(MAKEDEP) $(CFILES) > .dep Index: b/inventory/Makefile =================================================================== --- a/inventory/Makefile +++ b/inventory/Makefile @@ -13,4 +13,4 @@ default install install-dev: include $(BUILDRULES) --include .dep +-include .ltdep Index: b/librmt/Makefile =================================================================== --- a/librmt/Makefile +++ b/librmt/Makefile @@ -21,4 +21,4 @@ include $(BUILDRULES) install install-dev: default --include .dep +-include .ltdep Index: b/restore/Makefile =================================================================== --- a/restore/Makefile +++ b/restore/Makefile @@ -117,7 +117,7 @@ install: default $(INSTALL) -S $(PKG_ROOT_SBIN_DIR)/$(LTCOMMAND) $(PKG_SBIN_DIR)/$(LTCOMMAND) install-dev: -depend: $(COMMINCL) $(COMMON) $(INVINCL) $(INVCOMMON) +.dep: $(COMMINCL) $(COMMON) $(INVINCL) $(INVCOMMON) $(COMMINCL) $(COMMON): @echo " [LN] $@" From aelder@sgi.com Wed Jun 9 09:11:54 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,J_CHICKENPOX_54, J_CHICKENPOX_65,J_CHICKENPOX_66 autolearn=no version=3.4.0-r929098 Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o59EBsL9068255 for ; Wed, 9 Jun 2010 09:11:54 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay1.corp.sgi.com (Postfix) with ESMTP id BD6CA8F80A1 for ; Fri, 30 Jul 2010 14:49:48 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o6ULnmtd008331 for ; Fri, 30 Jul 2010 16:49:48 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o6ULnmTR008330 for xfs@oss.sgi.com; Fri, 30 Jul 2010 16:49:48 -0500 From: Alex Elder Message-Id: <201007302149.o6ULnmTR008330@stout.americas.sgi.com> Date: Fri, 30 Jul 2010 16:49:48 -0500 To: xfs@oss.sgi.com Subject: [PATCH] xfstests: fix depend targets User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean There's no need to re-make the dependency files all the time. Make it so the "depend" target rebuilds the ".dep" file only if necessary. Also change the name of the dependency file created for "ltdepend" to be ".ltdep". Signed-off-by: Alex Elder --- Makefile | 4 ++-- include/buildrules | 18 ++++++++++++------ lib/Makefile | 2 +- 3 files changed, 15 insertions(+), 9 deletions(-) Index: b/Makefile =================================================================== --- a/Makefile +++ b/Makefile @@ -27,8 +27,8 @@ endif TESTS = $(shell sed -n -e '/^[0-9][0-9][0-9]*/s/ .*//p' group) CONFIGURE = configure include/builddefs include/config.h LSRCFILES = configure configure.in aclocal.m4 README VERSION -LDIRT = config.log .dep config.status config.cache confdefs.h conftest* \ - check.log check.time +LDIRT = config.log .ltdep .dep config.status config.cache confdefs.h \ + conftest* check.log check.time ifeq ($(HAVE_DMAPI), true) DMAPI_MAKEFILE = dmapi/Makefile Index: b/include/buildrules =================================================================== --- a/include/buildrules +++ b/include/buildrules @@ -8,7 +8,7 @@ include $(TOPDIR)/include/builddefs clean clobber : $(addsuffix -clean,$(SUBDIRS)) $(Q)rm -f $(DIRT) - $(Q)rm -fr .libs .dep + $(Q)rm -fr .libs .ltdep .dep %-clean: @echo "Cleaning $*" @@ -75,11 +75,17 @@ $(_FORCE): MAKEDEP := $(MAKEDEPEND) $(CFLAGS) -ltdepend: $(CFILES) $(HFILES) - @echo " [DEP]" - $(Q)$(MAKEDEP) $(CFILES) | $(SED) -e 's,^\([^:]*\)\.o,\1.lo,' > .dep +ltdepend: .ltdep + +.ltdep: $(CFILES) $(HFILES) + @echo " [LTDEP]" + $(Q)[ -n "$(CFILES)" ] && \ + $(MAKEDEP) $(CFILES) | $(SED) -e 's,^\([^:]*\)\.o,\1.lo,' > .ltdep + +depend: .dep -depend: $(CFILES) $(HFILES) +.dep: $(CFILES) $(HFILES) @echo " [DEP]" - $(Q)$(MAKEDEP) $(CFILES) | $(SED) -e 's,^\([^:]*\)\.o,\1,' > .dep + $(Q)[ -n "$(CFILES)" ] && \ + $(MAKEDEP) $(CFILES) | $(SED) -e 's,^\([^:]*\)\.o,\1,' > .dep Index: b/lib/Makefile =================================================================== --- a/lib/Makefile +++ b/lib/Makefile @@ -25,4 +25,4 @@ include $(BUILDRULES) install install-dev: default --include .dep +-include .ltdep From aelder@sgi.com Wed Jun 9 09:13:28 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o59EDSiN068302 for ; Wed, 9 Jun 2010 09:13:28 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay1.corp.sgi.com (Postfix) with ESMTP id 2EBC28F8049 for ; Fri, 30 Jul 2010 14:51:23 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o6ULpNUF008603 for ; Fri, 30 Jul 2010 16:51:23 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o6ULpNLX008602 for xfs@oss.sgi.com; Fri, 30 Jul 2010 16:51:23 -0500 From: Alex Elder Message-Id: <201007302151.o6ULpNLX008602@stout.americas.sgi.com> Date: Fri, 30 Jul 2010 16:51:23 -0500 To: xfs@oss.sgi.com Subject: dmapi: fix depend targets User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean There's no need to re-make the dependency files all the time. Make it so the "depend" target rebuilds the ".dep" file only if necessary. Signed-off-by: Alex Elder --- include/buildrules | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) Index: b/include/buildrules =================================================================== --- a/include/buildrules +++ b/include/buildrules @@ -8,7 +8,7 @@ include $(TOPDIR)/include/builddefs clean clobber : $(addsuffix -clean,$(SUBDIRS)) rm -f $(DIRT) - @rm -fr .libs + @rm -fr .libs .dep %-clean: $(MAKE) -C $* clean @@ -72,9 +72,10 @@ ifdef LTLIBRARY DEPENDSCRIPT := $(DEPENDSCRIPT) | $(SED) -e 's,^\([^:]*\)\.o,\1.lo,' endif -depend : $(CFILES) $(HFILES) $(addsuffix -depend,$(SUBDIRS)) +depend : .dep $(addsuffix -depend,$(SUBDIRS)) + +.dep : $(CFILES) $(HFILES) $(DEPENDSCRIPT) > .dep - test -s .dep || rm -f .dep %-depend: $(MAKE) -C $* depend From aelder@sgi.com Wed Jun 9 09:14:45 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,J_CHICKENPOX_62, J_CHICKENPOX_64,J_CHICKENPOX_65 autolearn=no version=3.4.0-r929098 Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o59EEjLq068352 for ; Wed, 9 Jun 2010 09:14:45 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay2.corp.sgi.com (Postfix) with ESMTP id 115153040CA for ; Fri, 30 Jul 2010 14:52:40 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o6ULqdge008762 for ; Fri, 30 Jul 2010 16:52:39 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o6ULqdcK008761 for xfs@oss.sgi.com; Fri, 30 Jul 2010 16:52:39 -0500 From: Alex Elder Message-Id: <201007302152.o6ULqdcK008761@stout.americas.sgi.com> Date: Fri, 30 Jul 2010 16:52:39 -0500 To: xfs@oss.sgi.com Subject: [PATCH] xfstests: include NIS databases User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean If NIS is active on a test target system, additional password and group file information is available via their respective databases in NIS. Currently, some tests assume that /etc/passwd and /etc/group are the only places to find this information. This patch causes both the local database and the NIS database (if one is likely to be present) to be consulted for needed information. Signed-off-by: Alex Elder --- 093 | 2 +- common.attr | 4 ++-- common.quota | 12 ++++++------ common.rc | 28 +++++++++++++++++++++++++++- 4 files changed, 36 insertions(+), 10 deletions(-) Index: b/093 =================================================================== --- a/093 +++ b/093 @@ -72,7 +72,7 @@ echo "" file=$testdir/$seq.file user=`grep ':all=:all=' /etc/capability | tail -1 | $AWK_PROG -F: '{print $1}'` -uid=`grep $user /etc/passwd | $AWK_PROG -F: '{print $3}'` +uid=`_cat_passwd | grep $user | $AWK_PROG -F: '{print $3}'` cat >$tmp.append < 0 ) { + while ( "_cat_passwd" | getline > 0 ) { idlist[$1] = $3 } } Index: b/common.quota =================================================================== --- a/common.quota +++ b/common.quota @@ -59,11 +59,11 @@ _require_prjquota() # _require_nobody() { - grep -q '^nobody' /etc/passwd - [ $? -ne 0 ] && _notrun "/etc/passwd does not contain user nobody." + _cat_passwd | grep -q '^nobody' + [ $? -ne 0 ] && _notrun "password file does not contain user nobody." - egrep -q '^no(body|group)' /etc/group - [ $? -ne 0 ] && _notrun "/etc/group does not contain nobody/nogroup." + _cat_group | egrep -q '^no(body|group)' + [ $? -ne 0 ] && _notrun "group file does not contain nobody/nogroup." } # create a file as a specific user (uid) @@ -108,12 +108,12 @@ EOF _choose_uid() { - grep '^nobody' /etc/passwd | perl -ne '@a = split(/:/); END { printf "id=%d name=%s\n", $a[2],$a[0] }' + _cat_passwd | grep '^nobody' | perl -ne '@a = split(/:/); END { printf "id=%d name=%s\n", $a[2],$a[0] }' } _choose_gid() { - egrep '^no(body|group)' /etc/group | perl -ne '@a = split(/:/); END { printf "id=%d name=%s\n", $a[2],$a[0] }' + _cat_group | egrep '^no(body|group)' | perl -ne '@a = split(/:/); END { printf "id=%d name=%s\n", $a[2],$a[0] }' } _choose_prid() Index: b/common.rc =================================================================== --- a/common.rc +++ b/common.rc @@ -793,12 +793,38 @@ _require_nonexternal() _notrun "External device testing in progress, skipped this test" } +# indicate whether YP/NIS is active or not +# +_yp_active() +{ + local dn + dn=$(domainname 2>/dev/null) + test -n "${DN}" -a "${DN}" != "(none)" +} + +# cat the password file +# +_cat_passwd() +{ + [ _yp_active ] && ypcat passwd + cat /etc/passwd +} + +# cat the group file +# +_cat_group() +{ + [ _yp_active ] && ypcat group + cat /etc/group +} +export -f _yp_active _cat_passwd _cat_group + # check for the fsgqa user on the machine # _require_user() { qa_user=fsgqa - cat /etc/passwd | grep -q $qa_user + _cat_passwd | grep -q $qa_user [ "$?" == "0" ] || _notrun "$qa_user user not defined." } From aelder@sgi.com Wed Jun 9 09:16:32 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o59EGWRt068446 for ; Wed, 9 Jun 2010 09:16:32 -0500 Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.232.50]) by relay3.corp.sgi.com (Postfix) with ESMTP id B0F70AC009 for ; Fri, 30 Jul 2010 14:54:23 -0700 (PDT) Received: from stout.americas.sgi.com (localhost6.localdomain6 [127.0.0.1]) by stout.americas.sgi.com (8.14.3/8.14.2) with ESMTP id o6ULsN6t008916 for ; Fri, 30 Jul 2010 16:54:23 -0500 Received: (from aelder@localhost) by stout.americas.sgi.com (8.14.3/8.14.3/Submit) id o6ULsNdm008915 for xfs@oss.sgi.com; Fri, 30 Jul 2010 16:54:23 -0500 From: Alex Elder Message-Id: <201007302154.o6ULsNdm008915@stout.americas.sgi.com> Date: Fri, 30 Jul 2010 16:54:23 -0500 To: xfs@oss.sgi.com Subject: [PATCH] xfstests: have getfacl(1) report numeric id's User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean This patch arranges for calls to getfacl(1) to be given the "-n" flag, which requests that user and group id's be listed numerically rather than using names. The affected test output files are also updated to indicate the effect of the change. This eliminates some spurious output differences I was seeing, due to the presence of NIS in my test environment. Signed-off-by: Alex Elder --- 051 | 10 +++++----- 051.out | 20 ++++++++++---------- 067 | 8 ++++---- 067.out | 16 ++++++++-------- 4 files changed, 27 insertions(+), 27 deletions(-) Index: b/051 =================================================================== --- a/051 +++ b/051 @@ -343,23 +343,23 @@ acl5=`_create_n_aces 17` # 1 over A.G. l echo "1 below xfs acl max" chacl $acl1 largeaclfile -getfacl largeaclfile | _filter_aces +getfacl -n largeaclfile | _filter_aces echo "xfs acl max" chacl $acl2 largeaclfile -getfacl largeaclfile | _filter_aces +getfacl -n largeaclfile | _filter_aces echo "1 above xfs acl max" chacl $acl3 largeaclfile -getfacl largeaclfile | _filter_aces +getfacl -n largeaclfile | _filter_aces echo "use 16 aces" chacl $acl4 largeaclfile -getfacl largeaclfile | _filter_aces +getfacl -n largeaclfile | _filter_aces echo "use 17 aces" chacl $acl5 largeaclfile -getfacl largeaclfile | _filter_aces +getfacl -n largeaclfile | _filter_aces #------------------------------------------------------- Index: b/051.out =================================================================== --- a/051.out +++ b/051.out @@ -222,8 +222,8 @@ chacl: a::rwx - Invalid argument === Test out large ACLs === 1 below xfs acl max # file: largeaclfile -# owner: root -# group: root +# owner: 0 +# group: 0 user::rwx user:1:rwx user:2:rwx @@ -251,8 +251,8 @@ other::rwx xfs acl max # file: largeaclfile -# owner: root -# group: root +# owner: 0 +# group: 0 user::rwx user:1:rwx user:2:rwx @@ -282,8 +282,8 @@ other::rwx 1 above xfs acl max chacl: cannot set access acl on "largeaclfile": Invalid argument # file: largeaclfile -# owner: root -# group: root +# owner: 0 +# group: 0 user::rwx user:1:rwx user:2:rwx @@ -312,8 +312,8 @@ other::rwx use 16 aces # file: largeaclfile -# owner: root -# group: root +# owner: 0 +# group: 0 user::rwx user:1:rwx user:2:rwx @@ -333,8 +333,8 @@ other::rwx use 17 aces # file: largeaclfile -# owner: root -# group: root +# owner: 0 +# group: 0 user::rwx user:1:rwx user:2:rwx Index: b/067 =================================================================== --- a/067 +++ b/067 @@ -72,19 +72,19 @@ acl21=`_create_n_aces 21` echo "try 20 aces for access acl" chacl $acl20 largeacldir -getfacl largeacldir | _filter_aces +getfacl -n largeacldir | _filter_aces echo "try 20 aces for default acl" chacl -d $acl20 largeacldir -getfacl largeacldir | _filter_aces +getfacl -n largeacldir | _filter_aces echo "try 21 aces for access acl" chacl $acl21 largeacldir -getfacl largeacldir | _filter_aces +getfacl -n largeacldir | _filter_aces echo "try 21 aces for default acl" chacl -d $acl21 largeacldir -getfacl largeacldir | _filter_aces +getfacl -n largeacldir | _filter_aces # success, all done status=0 Index: b/067.out =================================================================== --- a/067.out +++ b/067.out @@ -3,8 +3,8 @@ QA output created by 067 === Test out large ACLs === try 20 aces for access acl # file: largeacldir -# owner: root -# group: root +# owner: 0 +# group: 0 user::rwx user:1:rwx user:2:rwx @@ -28,8 +28,8 @@ other::rwx try 20 aces for default acl # file: largeacldir -# owner: root -# group: root +# owner: 0 +# group: 0 user::rwx user:1:rwx user:2:rwx @@ -73,8 +73,8 @@ default:other::rwx try 21 aces for access acl # file: largeacldir -# owner: root -# group: root +# owner: 0 +# group: 0 user::rwx user:1:rwx user:2:rwx @@ -119,8 +119,8 @@ default:other::rwx try 21 aces for default acl # file: largeacldir -# owner: root -# group: root +# owner: 0 +# group: 0 user::rwx user:1:rwx user:2:rwx From SRS0+KZOK+60+fromorbit.com=david@internode.on.net Wed Jun 9 10:35:56 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,J_CHICKENPOX_33 autolearn=no version=3.4.0-r929098 Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o59FZtFX070931 for ; Wed, 9 Jun 2010 10:35:55 -0500 X-ASG-Debug-ID: 1280531627-5302028a0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 7B0171BEE790 for ; Fri, 30 Jul 2010 16:13:48 -0700 (PDT) Received: from mail.internode.on.net (bld-mail17.adl2.internode.on.net [150.101.137.102]) by cuda.sgi.com with ESMTP id 71yduoFRmEwPqVj3 for ; Fri, 30 Jul 2010 16:13:48 -0700 (PDT) Received: from dastard (unverified [121.44.18.238]) by mail.internode.on.net (SurgeMail 3.8f2) with ESMTP id 33281553-1927428 for multiple; Sat, 31 Jul 2010 08:43:38 +0930 (CST) Received: from dave by dastard with local (Exim 4.71) (envelope-from ) id 1Oeyll-0002NZ-Cq; Sat, 31 Jul 2010 09:13:37 +1000 Date: Sat, 31 Jul 2010 09:13:37 +1000 From: Dave Chinner To: Badari Pulavarty Cc: linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com, sandeen@sandeen.net X-ASG-Orig-Subj: Re: [PATCH] dio: track and serialise unaligned direct IO Subject: Re: [PATCH] dio: track and serialise unaligned direct IO Message-ID: <20100730231337.GD2126@dastard> References: <1280443516-14448-1-git-send-email-david@fromorbit.com> <1280511789.16484.18.camel@badari-desktop> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1280511789.16484.18.camel@badari-desktop> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: bld-mail17.adl2.internode.on.net[150.101.137.102] X-Barracuda-Start-Time: 1280531629 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.36568 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jul 30, 2010 at 10:43:09AM -0700, Badari Pulavarty wrote: > On Fri, 2010-07-30 at 08:45 +1000, Dave Chinner wrote: > > From: Dave Chinner > > > > If we get two unaligned direct IO's to the same filesystem block > > that is marked as a new allocation (i.e. buffer_new), then both IOs will > > zero the portion of the block they are not writing data to. As a > > result, when the IOs complete there will be a portion of the block > > that contains zeros from the last IO to complete rather than the > > data that should be there. > > > > This is easily manifested by qemu using aio+dio with an unaligned > > guest filesystem - every IO is unaligned and fileystem corruption is > > encountered in the guest filesystem. xfstest 240 (from Eric Sandeen) > > is also a simple reproducer. > > > > To avoid this problem, track unaligned IO that triggers sub-block zeroing and > > check new incoming unaligned IO that require sub-block zeroing against that > > list. If we get an overlap where the start and end of unaligned IOs hit the > > same filesystem block, then we need to block the incoming IOs until the IO that > > is zeroing the block completes. The blocked IO can then continue without > > needing to do any zeroing and hence won't overwrite valid data with zeros. > > > > Signed-off-by: Dave Chinner > > I can confirm that, it fixes corruption of my VM images when using AIO > +DIO. (cache=none,aio=native). I haven't reviewed the patch closely, but > > 1) can we do this only for AIO+DIO combination ? For regular DIO, we > should have all the IOs serialized by i_mutex anyway.. Not for filesystems that do their own locking. In most cases XFS does not take the i_mutiex during DIO writes, and when it does it drops it long before we call into the generic direct IO code that does the sub-block zeroing. So the i_mutex does not guarantee any form of serialisation in direct IO writes at all. > 2) Having a single global list (for all devices) might cause scaling > issues. Unaligned direct IO is undesirable in the first place. While we shouldd behave correctly in this corner case, I0 don't see any need for it to be particularly efficient as the real fix for performance problems with unaligned DIO is to not issue it in the first place. > 3) Are you dropping i_mutex when you are waiting for the zero-out to > finish ? For XFS we're not holding the i_mutex - and we can't take the i_mutex either as that will cause lock inversion issues. We don't know what locks are held, we don't know whether it is safe to drop and take locks, we don't even have the context to operate on filesystem specific locks to avoid ordering problems. If we can't sleep with the locks we already have held at this point, the DIO is already broken for that filesystem. Besides, if the i_mutex is already held for some filesystem when we zero blocks, then we can't very well have concurrent block zeroing in progress, and therefore can't hit this bug, right? Cheers, Dave. -- Dave Chinner david@fromorbit.com From BATV+7b33aad8d7966417b8fd+2534+infradead.org+hch@bombadil.srs.infradead.org Fri Jun 11 01:37:15 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5B6bC1Z138487 for ; Fri, 11 Jun 2010 01:37:14 -0500 X-ASG-Debug-ID: 1280672107-5a6d003c0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 4EE2A48A789; Sun, 1 Aug 2010 07:15:07 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id 62awQIuC0Cf7U69k; Sun, 01 Aug 2010 07:15:07 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OfZJj-0004m2-Cj; Sun, 01 Aug 2010 14:15:07 +0000 Date: Sun, 1 Aug 2010 10:15:07 -0400 From: Christoph Hellwig To: Alex Elder Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfstests: include NIS databases Subject: Re: [PATCH] xfstests: include NIS databases Message-ID: <20100801141507.GA10192@infradead.org> References: <201007302152.o6ULqdcK008761@stout.americas.sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201007302152.o6ULqdcK008761@stout.americas.sgi.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1280672108 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jul 30, 2010 at 04:52:39PM -0500, Alex Elder wrote: > If NIS is active on a test target system, additional password and > group file information is available via their respective databases > in NIS. Currently, some tests assume that /etc/passwd and /etc/group > are the only places to find this information. > > This patch causes both the local database and the NIS database (if > one is likely to be present) to be consulted for needed information. > > Signed-off-by: Alex Elder Looks good, Reviewed-by: Christoph Hellwig From BATV+7b33aad8d7966417b8fd+2534+infradead.org+hch@bombadil.srs.infradead.org Fri Jun 11 01:37:54 2010 X-Spam-Checker-Version: SpamAssassin 3.4.0-r929098 (2010-03-30) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.4.0-r929098 Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o5B6bsbQ138536 for ; Fri, 11 Jun 2010 01:37:54 -0500 X-ASG-Debug-ID: 1280672149-21fc03690000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 0DAF548B5B8; Sun, 1 Aug 2010 07:15:49 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id p12YSuQUsvdp0b4D; Sun, 01 Aug 2010 07:15:49 -0700 (PDT) X-ASG-Whitelist: Client Received: from hch by bombadil.infradead.org with local (Exim 4.72 #1 (Red Hat Linux)) id 1OfZKP-0005fq-MX; Sun, 01 Aug 2010 14:15:49 +0000 Date: Sun, 1 Aug 2010 10:15:49 -0400 From: Christoph Hellwig To: Alex Elder Cc: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfstests: have getfacl(1) report numeric id's Subject: Re: [PATCH] xfstests: have getfacl(1) report numeric id's Message-ID: <20100801141549.GB10192@infradead.org> References: <201007302154.o6ULsNdm008915@stout.americas.sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201007302154.o6ULsNdm008915@stout.americas.sgi.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[18.85.46.34] X-Barracuda-Start-Time: 1280672150 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Virus-Scanned: ClamAV version 0.94.2, clamav-milter version 0.94.2 on oss.sgi.com X-Virus-Status: Clean On Fri, Jul 30, 2010 at 04:54:23PM -0500, Alex Elder wrote: > This patch arranges for calls to getfacl(1) to be given the "-n" > flag, which requests that user and group id's be listed numerically > rather than using names. The affected test output files are also > updated to indicate the effect of the change. > > This eliminates some spurious output differences I was seeing, due > to the presence of NIS in my test environment. > > Signed-off-by: Alex Elder Looks good, Reviewed-by: Christoph Hellwig I wonder if this usage should be documented somewhere for future tests. 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