From wmiles@ft.newyorklife.com Mon Sep 1 02:04:16 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE,T_FRT_CONTACT autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 197F27F57 for ; Mon, 1 Sep 2014 02:04:16 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 8B718AC005 for ; Mon, 1 Sep 2014 00:04:12 -0700 (PDT) X-ASG-Debug-ID: 1409555050-04cbb05485982120001-NocioJ Received: from mgwadcp05.newyorklife.com (obmail.newyorklife.com [206.210.16.25]) by cuda.sgi.com with ESMTP id NSurkdCoBkJvuEZ4 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 01 Sep 2014 00:04:11 -0700 (PDT) X-Barracuda-Envelope-From: wmiles@ft.newyorklife.com X-Barracuda-Apparent-Source-IP: 206.210.16.25 X-Barracuda-IPDD: Level2 [ft.newyorklife.com/206.210.16.25] X-IronPort-AV: E=Sophos;i="5.04,440,1406606400"; d="scan'208,217";a="187295079" X-Barracuda-IPDD: Level2 [ft.newyorklife.com/206.210.16.25] X-Barracuda-IPDD: Level2 [ft.newyorklife.com/206.210.16.25] X-IronPort-AV: E=Sophos;i="5.04,440,1406606400"; d="scan'208,217";a="187295063" Received: from nyp-cashbmb3-cj.ftmail.dist.us.newyorklife.com ([172.31.85.106]) by mgwadcp05.newyorklife.com with ESMTP/TLS/AES128-SHA; 01 Sep 2014 03:04:01 -0400 Received: from NYP-CASHBMB2-CJ.FTMAIL.DIST.US.NEWYORKLIFE.COM ([fe80::dc8c:759d:654:7346]) by NYP-CASHBMB3-CJ.ftmail.dist.us.newyorklife.com ([fe80::7c12:abb3:38c0:db41%22]) with mapi id 14.03.0158.001; Mon, 1 Sep 2014 03:04:00 -0400 From: Willie J Miles Subject: Thread-Index: Ac/FsufiidfYTyWtTY2y0KlELlflAA== X-ASG-Orig-Subj: Date: Mon, 1 Sep 2014 07:04:00 +0000 Message-ID: <11C6440AA2FB6E409B6505395B20654D3CEDF114@NYP-CASHBMB2-CJ.ftmail.dist.us.newyorklife.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [192.168.106.46] Content-Type: multipart/alternative; boundary="_000_11C6440AA2FB6E409B6505395B20654D3CEDF114NYPCASHBMB2CJft_" MIME-Version: 1.0 X-CFilter-Loop: Reflected X-Barracuda-Connect: obmail.newyorklife.com[206.210.16.25] X-Barracuda-Start-Time: 1409555050 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 To: undisclosed-recipients:; --_000_11C6440AA2FB6E409B6505395B20654D3CEDF114NYPCASHBMB2CJft_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Haben Sie finanzielle Unterst=FCtzung jeder Art m=FCssen? Pers=F6nliche Darlehen? Business-Darlehen? Hypothekendarlehen? Agrar-und Projektfinanzierung? Wir geben Kredite bei 3% A.P.I. Rate! Kontakt; creditspa@admin.in.th =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D Do you need Financial assistance of any kind? Personal Loans? Business Loans? Mortgage loans? Agricultural and project funding? We give out loans at 3% A.P.I. rate! Contact ;creditspa@admin.in.th --_000_11C6440AA2FB6E409B6505395B20654D3CEDF114NYPCASHBMB2CJft_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
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--_000_11C6440AA2FB6E409B6505395B20654D3CEDF114NYPCASHBMB2CJft_-- From squatral@bidmc.harvard.edu Mon Sep 1 02:33:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=unavailable version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0EC8F7F57 for ; Mon, 1 Sep 2014 02:33:26 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id D3CA3304048 for ; Mon, 1 Sep 2014 00:33:22 -0700 (PDT) X-ASG-Debug-ID: 1409556800-04bdf010a068c340001-NocioJ Received: from SR48Maunakea.caregroup.org (securemail.bidmc.harvard.edu [134.174.104.36]) by cuda.sgi.com with ESMTP id 4f3pIu3gbFYICOQL (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO); Mon, 01 Sep 2014 00:33:21 -0700 (PDT) X-Barracuda-Envelope-From: squatral@bidmc.harvard.edu X-Barracuda-Apparent-Source-IP: 134.174.104.36 Received: from pps.filterd (SR48Maunakea.caregroup.org [127.0.0.1]) by SR48Maunakea.caregroup.org (8.14.7/8.14.7) with SMTP id s817DR8p012998; Mon, 1 Sep 2014 00:16:27 -0700 Received: from sr61rouse.its.caregroup.org (sr61rouse.bidmc.harvard.edu [10.25.51.77]) by SR48Maunakea.caregroup.org with ESMTP id 1nwpaeq72m-1 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT); Mon, 01 Sep 2014 00:16:26 -0700 Received: from EVS4CCR.its.caregroup.org ([fe80::5509:c421:f730:1ef4]) by SR61ROUSE.its.caregroup.org ([::1]) with mapi; Mon, 1 Sep 2014 03:23:03 -0400 From: Date: Mon, 1 Sep 2014 03:23:02 -0400 Subject: Financiering Thread-Topic: Financiering X-ASG-Orig-Subj: Financiering Thread-Index: AQHPxbWQbXtQX3Jr5Uu+q1ec3biZ0w== Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: multipart/alternative; boundary="_000_ED1FA742B8C9BC4F8A9ED7C111530AC94CE90A5A79EVS4CCRitscar_" MIME-Version: 1.0 x-recipient-trigger: true X-Barracuda-Connect: securemail.bidmc.harvard.edu[134.174.104.36] X-Barracuda-Start-Time: 1409556800 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-BRTS-Evidence: 11fb7d69a730025d4aaf1d7f5a17460e-2338-htm X-Barracuda-Spam-Score: 1.23 X-Barracuda-Spam-Status: No, SCORE=1.23 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE, MISSING_HEADERS, NO_REAL_NAME, THREAD_INDEX, THREAD_TOPIC, TO_CC_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9053 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig== 0.00 NO_REAL_NAME From: does not include a real name 0.01 THREAD_TOPIC Thread-Topic: ...(Japanese Subject)... 1.21 MISSING_HEADERS Missing To: header 0.00 HTML_MESSAGE BODY: HTML included in message 0.00 TO_CC_NONE No To: or Cc: header To: undisclosed-recipients:; --_000_ED1FA742B8C9BC4F8A9ED7C111530AC94CE90A5A79EVS4CCRitscar_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable We zijn momenteel aanbieden van zakelijke en persoonlijke leningen. Dit is om uw kennis die wij bieden lening / krediet bij 3% rente per jaa= r aan de individuele en bedrijf aan te brengen. Onze investeerders financie= ren ook projecten. Voor meer informatie, naar voren uw reactie alleen op de= ze E-mail: f-spa@webadicta.org Als u behoefte heeft aan een snelle lening of financiering van grote noodza= ak, vooruit uw antwoord alleen op deze e-mail: f-spa@webadicta.org Dank u voor uw tijd. Copyright 2014. SPA =AE =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Nous offrons actuellement des entreprises et des pr=EAts personnels. C'est =E0 porter =E0 votre connaissance que nous offrons pr=EAt / cr=E9= dit =E0 taux d'int=E9r=EAt de 3% par an =E0 l'individu et de la soci=E9t=E9= . Nos investisseurs financent aussi des projets. Pour plus d'informations, = faites parvenir votre r=E9ponse uniquement =E0 ce courriel: f-spa@webadicta= .org Si vous avez besoin d'un pr=EAt rapide ou le besoin de financement importan= t, faire parvenir votre r=E9ponse uniquement =E0 cet email : f-spa@webadict= a.org Je vous remercie pour votre temps. Copyright 2014. SPA =AE ________________________________ This message is intended for the use of the person(s) to whom it may be add= ressed. It may contain information that is privileged, confidential, or oth= erwise protected from disclosure under applicable law. If you are not the i= ntended recipient, any dissemination, distribution, copying, or use of this= information is prohibited. If you have received this message in error, ple= ase permanently delete it and immediately notify the sender. Thank you. --_000_ED1FA742B8C9BC4F8A9ED7C111530AC94CE90A5A79EVS4CCRitscar_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
=  


We zijn momenteel aanbieden van zakelijke en persoonlijke leningen.
   Dit is om uw kennis die wij bieden lening / krediet bij 3% ren= te per jaar aan de individuele en bedrijf aan te brengen. Onze investeerder= s financieren ook projecten. Voor meer informatie, naar voren uw reactie al= leen op deze E-mail: f-spa@webadicta.org
 
Als u behoefte heeft aan een snelle lening of financiering van grote noodza= ak, vooruit uw antwoord alleen op deze e-mail: f-spa@webadicta.org

Dank u voor uw tijd.
Copyright 2014. SPA =AE
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Nous offrons actuellement des entreprises et des pr=EAts personnels.
    C'est =E0 porter =E0 votre connaissance que nous offrons= pr=EAt / cr=E9dit =E0 taux d'int=E9r=EAt de 3% par an =E0 l'individu et de= la soci=E9t=E9. Nos investisseurs financent aussi des projets. Pour plus d= 'informations, faites parvenir votre r=E9ponse uniquement =E0 ce courriel: f-spa@webadicta.org
 
Si vous avez besoin d'un pr=EAt rapide ou le besoin de financement importan= t, faire parvenir votre r=E9ponse uniquement =E0 cet email : f-spa@webadicta.org
Je vous remercie pour votre temps.
Copyright 2014. SPA =AE


This message is intended for= the use of the person(s) to whom it may be addressed. It may contain infor= mation that is privileged, confidential, or otherwise protected from disclo= sure under applicable law. If you are not the intended recipient, any dissemination, distribution, copying, or u= se of this information is prohibited. If you have received this message in = error, please permanently delete it and immediately notify the sender. Than= k you.
 --_000_ED1FA742B8C9BC4F8A9ED7C111530AC94CE90A5A79EVS4CCRitscar_-- From eflorac@intellique.com Mon Sep 1 14:18:56 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id B13347F66 for ; Mon, 1 Sep 2014 14:18:56 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 9136A304032 for ; Mon, 1 Sep 2014 12:18:53 -0700 (PDT) X-ASG-Debug-ID: 1409599130-04bdf010a06aa8b0001-NocioJ Received: from smtp3-g21.free.fr (smtp3-g21.free.fr [212.27.42.3]) by cuda.sgi.com with ESMTP id yABqNnfq7FnLQPdN (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 01 Sep 2014 12:18:51 -0700 (PDT) X-Barracuda-Envelope-From: eflorac@intellique.com X-Barracuda-Apparent-Source-IP: 212.27.42.3 Received: from galadriel.home (unknown [82.235.234.79]) by smtp3-g21.free.fr (Postfix) with ESMTP id DEAC0A6263; Mon, 1 Sep 2014 21:18:49 +0200 (CEST) Date: Mon, 1 Sep 2014 21:19:32 +0200 From: Emmanuel Florac To: Samuel GRANJEAUD IR/INSERM Cc: xfs@oss.sgi.com Subject: Re: Run out of inodes? Message-ID: <20140901211932.342b4bb3@galadriel.home> X-ASG-Orig-Subj: Re: Run out of inodes? In-Reply-To: <8d5fff2548d35737c6cebcb1f6382e80@inserm.fr> References: <54005108.1020203@inserm.fr> <20140829114806.GA17610@bfoster.bfoster> <5400802C.5050005@inserm.fr> <54009603.9050404@sandeen.net> <8d5fff2548d35737c6cebcb1f6382e80@inserm.fr> Organization: Intellique X-Mailer: Claws Mail 3.10.0 (GTK+ 2.24.20; i486-slackware-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: smtp3-g21.free.fr[212.27.42.3] X-Barracuda-Start-Time: 1409599131 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9069 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Le Sat, 30 Aug 2014 21:33:46 +0200 vous =C3=A9criviez: > Final question: could some issues appear with SAMBA? >=20 > # smbstatus -V > Version 3.4.5 Is your whole distribution 64 bits, or only the kernel? However, I've never had any problem with samba, but some with NFS. --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From odon@prover.com.br Mon Sep 1 17:34:43 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 809937F66 for ; Mon, 1 Sep 2014 17:34:43 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 1B6F3AC003 for ; Mon, 1 Sep 2014 15:34:43 -0700 (PDT) X-ASG-Debug-ID: 1409610881-04cbb054859a2bd0001-NocioJ Received: from hcsaturno.pib.com.br (hcsaturno.pib.com.br [200.194.176.52]) by cuda.sgi.com with ESMTP id ndudKin3efBLiV4I for ; Mon, 01 Sep 2014 15:34:41 -0700 (PDT) X-Barracuda-Envelope-From: odon@prover.com.br X-Barracuda-Apparent-Source-IP: 200.194.176.52 Received: from localhost (localhost [127.0.0.1]) by hcsaturno.pib.com.br (Postfix) with ESMTP id D93533A48BF5; Mon, 1 Sep 2014 19:20:41 -0300 (BRT) Received: from hcsaturno.pib.com.br ([127.0.0.1]) by localhost (hcsaturno.pib.com.br [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id t4ICIV8m4z7k; Mon, 1 Sep 2014 19:20:37 -0300 (BRT) Received: from localhost (localhost [127.0.0.1]) by hcsaturno.pib.com.br (Postfix) with ESMTP id 96A1E3F620D5; Mon, 1 Sep 2014 19:13:16 -0300 (BRT) X-Virus-Scanned: amavisd-new at skysat.com.br Received: from hcsaturno.pib.com.br ([127.0.0.1]) by localhost (hcsaturno.pib.com.br [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id dzRFZXG0_nFh; Mon, 1 Sep 2014 19:13:16 -0300 (BRT) Received: from hcsaturno.pib.com.br (hcsaturno.pib.com.br [200.194.176.52]) by hcsaturno.pib.com.br (Postfix) with ESMTP id D71913F67FCE; Mon, 1 Sep 2014 19:06:51 -0300 (BRT) Date: Mon, 1 Sep 2014 19:06:49 -0300 (BRT) From: Support! Reply-To: Support! Message-ID: <765495068.3746496.1409609209207.JavaMail.root@prover.com.br> Subject: Caro Membro (R) MIME-Version: 1.0 X-ASG-Orig-Subj: Caro Membro (R) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [103.253.181.24] X-Mailer: Zimbra 8.0.3_GA_5664 (ZimbraWebClient - GC36 (Win)/8.0.3_GA_5664) Thread-Topic: Caro Membro (R) Thread-Index: p5yR7rNxi7ixi/ZIRQbS6jSDNBK8fA== X-Barracuda-Connect: hcsaturno.pib.com.br[200.194.176.52] X-Barracuda-Start-Time: 1409610881 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 1.23 X-Barracuda-Spam-Status: No, SCORE=1.23 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MISSING_HEADERS, THREAD_INDEX, THREAD_TOPIC, TO_CC_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9075 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig== 0.01 THREAD_TOPIC Thread-Topic: ...(Japanese Subject)... 1.21 MISSING_HEADERS Missing To: header 0.00 TO_CC_NONE No To: or Cc: header To: undisclosed-recipients:; Caro Membro (R).=20 Esta mensagem =C3=A9 do centro de mensagens do Webmail.Team a todos os noss= os novos propriet=C3=A1rios de conta de e-mail antigas /. 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From david@fromorbit.com Mon Sep 1 18:45:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 9236C7F66 for ; Mon, 1 Sep 2014 18:45:40 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 12E52AC001 for ; Mon, 1 Sep 2014 16:45:36 -0700 (PDT) X-ASG-Debug-ID: 1409615133-04cbb054869a4ef0001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id Cx1sDyWPS7jgwOvG for ; Mon, 01 Sep 2014 16:45:34 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AisSAKgDBVR5LDJ8PGdsb2JhbABZgw2BKoIshQenYwEBBAaaQIVyAYETFwUBAQEBODaEAwEBBAE6HCMQCAMYCSUPBSUDBxoTiDoHuiMBFxiFZIhvEQEHSQeETAWcW5cOFoFuKy+BBwgXgSkBAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl2.internode.on.net with ESMTP; 02 Sep 2014 09:15:33 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XObHt-0005IT-W6; Tue, 02 Sep 2014 09:45:30 +1000 Date: Tue, 2 Sep 2014 09:45:29 +1000 From: Dave Chinner To: stan hoeppner Cc: xfs@oss.sgi.com Subject: Re: storage, libaio, or XFS problem? 3.4.26 Message-ID: <20140901234529.GI20518@dastard> X-ASG-Orig-Subj: Re: storage, libaio, or XFS problem? 3.4.26 References: <20140826075345.GJ20518@dastard> <8c29baf987467a84f0b7c1d09c863662@localhost> <20140828003226.GO20518@dastard> <7f9e5aef187b44e899077467aeb0809d@localhost> <20140828230817.GU20518@dastard> <2d2ce7bb38c00a7d35f4a324f6a36cbb@localhost> <20140829235538.GF20518@dastard> <20140831235749.GH20518@dastard> <5403E9B9.7040608@hardwarefreak.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5403E9B9.7040608@hardwarefreak.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1409615134 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9076 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sun, Aug 31, 2014 at 10:36:25PM -0500, stan hoeppner wrote: > On 08/31/2014 06:57 PM, Dave Chinner wrote: > > On Fri, Aug 29, 2014 at 09:55:53PM -0500, Stan Hoeppner wrote: > >> Have you played with bcache yet? > > > > Enough to scare me. So many ways for things to go wrong, no easy way > > to recover when things go wrong. And that's before I even get to > > performance warts, like having systems stall completely because > > there's tens or hundreds of GB of 4k random writes that have to be > > flushed to slow SATA RAID6 in the cache.... > > Yikes. I hadn't yet heard such opinions expressed. By go wrong I > assume you mean the btrees or cached sector data getting broken, corrupted? bcache is a complex filesystem hidden inside a block device. If bcache goes AWOL, so does the all the data on your block device. Need I say more? > > PS: can you wrap your text at 68 or 72 columns so quoted text > > doesn't overflow 80 columns and get randomly wrapped and messed up? > > This email should be. Lemme see what I can do with the others. The > lovely Cisco VPN client I must use kills routing to my local subnet, so > Icedovce can't connect to my IMAP server when the VPN is active. The > test hardness app requires a shell unfortunately so I have to keep the > tunnel open all the time, as the test runs are 40+ hours each. My last > test just crashed a bit ago so I can use Icedove for this reply. screen is your friend when it comes to keeping remote shells active as the network comes and goes. VPN drops out, just bring it back up when you need it and reconnect to the remote screen instance and it's like you never left.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From dgc@oss.sgi.com Mon Sep 1 21:19:16 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=NO_RELAYS autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: by oss.sgi.com (Postfix, from userid 10266) id 42C417F6C; Mon, 1 Sep 2014 21:19:16 -0500 (CDT) From: xfs@oss.sgi.com To: xfs@oss.sgi.com Subject: [XFS updates] XFS development tree branch, for-next, updated. xfs-for-linus-3.17-rc1-13183-g41b9d72 X-Git-Refname: refs/heads/for-next X-Git-Reftype: branch X-Git-Oldrev: 52addcf9d6669fa439387610bc65c92fa0980cef X-Git-Newrev: 41b9d7263ea1e270019c5d04fa0ab15db50b9725 Message-Id: <20140902021916.42C417F6C@oss.sgi.com> Date: Mon, 1 Sep 2014 21:19:14 -0500 (CDT) 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-next has been updated 41b9d72 xfs: trim eofblocks before collapse range 1669a8c xfs: xfs_file_collapse_range is delalloc challenged ca446d8 xfs: don't log inode unless extent shift makes extent modifications 7d4ea3c xfs: use ranged writeback and invalidation for direct IO 834ffca xfs: don't zero partial page cache pages during O_DIRECT writes 85e584d xfs: don't zero partial page cache pages during O_DIRECT writes 22e757a xfs: don't dirty buffers beyond EOF from 52addcf9d6669fa439387610bc65c92fa0980cef (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 41b9d7263ea1e270019c5d04fa0ab15db50b9725 Author: Brian Foster Date: Tue Sep 2 12:12:53 2014 +1000 xfs: trim eofblocks before collapse range xfs_collapse_file_space() currently writes back the entire file undergoing collapse range to settle things down for the extent shift algorithm. While this prevents changes to the extent list during the collapse operation, the writeback itself is not enough to prevent unnecessary collapse failures. The current shift algorithm uses the extent index to iterate the in-core extent list. If a post-eof delalloc extent persists after the writeback (e.g., a prior zero range op where the end of the range aligns with eof can separate the post-eof blocks such that they are not written back and converted), xfs_bmap_shift_extents() becomes confused over the encoded br_startblock value and fails the collapse. As with the full writeback, this is a temporary fix until the algorithm is improved to cope with a volatile extent list and avoid attempts to shift post-eof extents. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit 1669a8ca2105968f660cf7d84ba38fd18075cd99 Author: Dave Chinner Date: Tue Sep 2 12:12:53 2014 +1000 xfs: xfs_file_collapse_range is delalloc challenged If we have delalloc extents on a file before we run a collapse range opertaion, we sync the range that we are going to collapse to convert delalloc extents in that region to real extents to simplify the shift operation. However, the shift operation then assumes that the extent list is not going to change as it iterates over the extent list moving things about. Unfortunately, this isn't true because we can't hold the ILOCK over all the operations. We can prevent new IO from modifying the extent list by holding the IOLOCK, but that doesn't prevent writeback from running.... And when writeback runs, it can convert delalloc extents is the range of the file prior to the region being collapsed, and this changes the indexes of all the extents in the file. That causes the collapse range operation to Go Bad. The right fix is to rewrite the extent shift operation not to be dependent on the extent list not changing across the entire operation, but this is a fairly significant piece of work to do. Hence, as a short-term workaround for the problem, sync the entire file before starting a collapse operation to remove all delalloc ranges from the file and so avoid the problem of concurrent writeback changing the extent list. Diagnosed-and-Reported-by: Brian Foster Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit ca446d880c399bb31301e7d8eefbd7fe3c504c4e Author: Brian Foster Date: Tue Sep 2 12:12:53 2014 +1000 xfs: don't log inode unless extent shift makes extent modifications The file collapse mechanism uses xfs_bmap_shift_extents() to collapse all subsequent extents down into the specified, previously punched out, region. This function performs some validation, such as whether a sufficient hole exists in the target region of the collapse, then shifts the remaining exents downward. The exit path of the function currently logs the inode unconditionally. While we must log the inode (and abort) if an error occurs and the transaction is dirty, the initial validation paths can generate errors before the transaction has been dirtied. This creates an unnecessary filesystem shutdown scenario, as the caller will cancel a transaction that has been marked dirty. Modify xfs_bmap_shift_extents() to OR the logflags bits as modifications are made to the inode bmap. Only log the inode in the exit path if logflags has been set. This ensures we only have to cancel a dirty transaction if modifications have been made and prevents an unnecessary filesystem shutdown otherwise. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit 7d4ea3ce63a6bc532abb334c469c18481798af8c Author: Dave Chinner Date: Tue Sep 2 12:12:53 2014 +1000 xfs: use ranged writeback and invalidation for direct IO Now we are not doing silly things with dirtying buffers beyond EOF and using invalidation correctly, we can finally reduce the ranges of writeback and invalidation used by direct IO to match that of the IO being issued. Bring the writeback and invalidation ranges back to match the generic direct IO code - this will greatly reduce the perturbation of cached data when direct IO and buffered IO are mixed, but still provide the same buffered vs direct IO coherency behaviour we currently have. Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit 834ffca6f7e345a79f6f2e2d131b0dfba8a4b67a Author: Dave Chinner Date: Tue Sep 2 12:12:52 2014 +1000 xfs: don't zero partial page cache pages during O_DIRECT writes Similar to direct IO reads, direct IO writes are using truncate_pagecache_range to invalidate the page cache. This is incorrect due to the sub-block zeroing in the page cache that truncate_pagecache_range() triggers. This patch fixes things by using invalidate_inode_pages2_range instead. It preserves the page cache invalidation, but won't zero any pages. cc: stable@vger.kernel.org Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit 85e584da3212140ee80fd047f9058bbee0bc00d5 Author: Chris Mason Date: Tue Sep 2 12:12:52 2014 +1000 xfs: don't zero partial page cache pages during O_DIRECT writes xfs is using truncate_pagecache_range to invalidate the page cache during DIO reads. This is different from the other filesystems who only invalidate pages during DIO writes. truncate_pagecache_range is meant to be used when we are freeing the underlying data structs from disk, so it will zero any partial ranges in the page. This means a DIO read can zero out part of the page cache page, and it is possible the page will stay in cache. buffered reads will find an up to date page with zeros instead of the data actually on disk. This patch fixes things by using invalidate_inode_pages2_range instead. It preserves the page cache invalidation, but won't zero any pages. [dchinner: catch error and warn if it fails. Comment.] cc: stable@vger.kernel.org Signed-off-by: Chris Mason Reviewed-by: Dave Chinner Reviewed-by: Brian Foster Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit 22e757a49cf010703fcb9c9b4ef793248c39b0c2 Author: Dave Chinner Date: Tue Sep 2 12:12:51 2014 +1000 xfs: don't dirty buffers beyond EOF generic/263 is failing fsx at this point with a page spanning EOF that cannot be invalidated. The operations are: 1190 mapwrite 0x52c00 thru 0x5e569 (0xb96a bytes) 1191 mapread 0x5c000 thru 0x5d636 (0x1637 bytes) 1192 write 0x5b600 thru 0x771ff (0x1bc00 bytes) where 1190 extents EOF from 0x54000 to 0x5e569. When the direct IO write attempts to invalidate the cached page over this range, it fails with -EBUSY and so any attempt to do page invalidation fails. The real question is this: Why can't that page be invalidated after it has been written to disk and cleaned? Well, there's data on the first two buffers in the page (1k block size, 4k page), but the third buffer on the page (i.e. beyond EOF) is failing drop_buffers because it's bh->b_state == 0x3, which is BH_Uptodate | BH_Dirty. IOWs, there's dirty buffers beyond EOF. Say what? OK, set_buffer_dirty() is called on all buffers from __set_page_buffers_dirty(), regardless of whether the buffer is beyond EOF or not, which means that when we get to ->writepage, we have buffers marked dirty beyond EOF that we need to clean. So, we need to implement our own .set_page_dirty method that doesn't dirty buffers beyond EOF. This is messy because the buffer code is not meant to be shared and it has interesting locking issues on the buffer dirty bits. So just copy and paste it and then modify it to suit what we need. Note: the solutions the other filesystems and generic block code use of marking the buffers clean in ->writepage does not work for XFS. It still leaves dirty buffers beyond EOF and invalidations still fail. Hence rather than play whack-a-mole, this patch simply prevents those buffers from being dirtied in the first place. cc: Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Signed-off-by: Dave Chinner ----------------------------------------------------------------------- Summary of changes: fs/xfs/libxfs/xfs_bmap.c | 18 +++++++------- fs/xfs/xfs_aops.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++ fs/xfs/xfs_bmap_util.c | 20 ++++++++++++++++ fs/xfs/xfs_file.c | 27 +++++++++++++++++---- 4 files changed, 114 insertions(+), 12 deletions(-) hooks/post-receive -- XFS development tree From dgc@oss.sgi.com Mon Sep 1 21:19:33 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=NO_RELAYS autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: by oss.sgi.com (Postfix, from userid 10266) id 51E217F74; Mon, 1 Sep 2014 21:19:33 -0500 (CDT) From: xfs@oss.sgi.com To: xfs@oss.sgi.com Subject: [XFS updates] XFS development tree branch, xfs-for-3.17-rc3, created. xfs-for-linus-3.17-rc1-13183-g41b9d72 X-Git-Refname: refs/heads/xfs-for-3.17-rc3 X-Git-Reftype: branch X-Git-Oldrev: 0000000000000000000000000000000000000000 X-Git-Newrev: 41b9d7263ea1e270019c5d04fa0ab15db50b9725 Message-Id: <20140902021933.51E217F74@oss.sgi.com> Date: Mon, 1 Sep 2014 21:19:32 -0500 (CDT) 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, xfs-for-3.17-rc3 has been created at 41b9d7263ea1e270019c5d04fa0ab15db50b9725 (commit) - Log ----------------------------------------------------------------- commit 41b9d7263ea1e270019c5d04fa0ab15db50b9725 Author: Brian Foster Date: Tue Sep 2 12:12:53 2014 +1000 xfs: trim eofblocks before collapse range xfs_collapse_file_space() currently writes back the entire file undergoing collapse range to settle things down for the extent shift algorithm. While this prevents changes to the extent list during the collapse operation, the writeback itself is not enough to prevent unnecessary collapse failures. The current shift algorithm uses the extent index to iterate the in-core extent list. If a post-eof delalloc extent persists after the writeback (e.g., a prior zero range op where the end of the range aligns with eof can separate the post-eof blocks such that they are not written back and converted), xfs_bmap_shift_extents() becomes confused over the encoded br_startblock value and fails the collapse. As with the full writeback, this is a temporary fix until the algorithm is improved to cope with a volatile extent list and avoid attempts to shift post-eof extents. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit 1669a8ca2105968f660cf7d84ba38fd18075cd99 Author: Dave Chinner Date: Tue Sep 2 12:12:53 2014 +1000 xfs: xfs_file_collapse_range is delalloc challenged If we have delalloc extents on a file before we run a collapse range opertaion, we sync the range that we are going to collapse to convert delalloc extents in that region to real extents to simplify the shift operation. However, the shift operation then assumes that the extent list is not going to change as it iterates over the extent list moving things about. Unfortunately, this isn't true because we can't hold the ILOCK over all the operations. We can prevent new IO from modifying the extent list by holding the IOLOCK, but that doesn't prevent writeback from running.... And when writeback runs, it can convert delalloc extents is the range of the file prior to the region being collapsed, and this changes the indexes of all the extents in the file. That causes the collapse range operation to Go Bad. The right fix is to rewrite the extent shift operation not to be dependent on the extent list not changing across the entire operation, but this is a fairly significant piece of work to do. Hence, as a short-term workaround for the problem, sync the entire file before starting a collapse operation to remove all delalloc ranges from the file and so avoid the problem of concurrent writeback changing the extent list. Diagnosed-and-Reported-by: Brian Foster Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit ca446d880c399bb31301e7d8eefbd7fe3c504c4e Author: Brian Foster Date: Tue Sep 2 12:12:53 2014 +1000 xfs: don't log inode unless extent shift makes extent modifications The file collapse mechanism uses xfs_bmap_shift_extents() to collapse all subsequent extents down into the specified, previously punched out, region. This function performs some validation, such as whether a sufficient hole exists in the target region of the collapse, then shifts the remaining exents downward. The exit path of the function currently logs the inode unconditionally. While we must log the inode (and abort) if an error occurs and the transaction is dirty, the initial validation paths can generate errors before the transaction has been dirtied. This creates an unnecessary filesystem shutdown scenario, as the caller will cancel a transaction that has been marked dirty. Modify xfs_bmap_shift_extents() to OR the logflags bits as modifications are made to the inode bmap. Only log the inode in the exit path if logflags has been set. This ensures we only have to cancel a dirty transaction if modifications have been made and prevents an unnecessary filesystem shutdown otherwise. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit 7d4ea3ce63a6bc532abb334c469c18481798af8c Author: Dave Chinner Date: Tue Sep 2 12:12:53 2014 +1000 xfs: use ranged writeback and invalidation for direct IO Now we are not doing silly things with dirtying buffers beyond EOF and using invalidation correctly, we can finally reduce the ranges of writeback and invalidation used by direct IO to match that of the IO being issued. Bring the writeback and invalidation ranges back to match the generic direct IO code - this will greatly reduce the perturbation of cached data when direct IO and buffered IO are mixed, but still provide the same buffered vs direct IO coherency behaviour we currently have. Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit 834ffca6f7e345a79f6f2e2d131b0dfba8a4b67a Author: Dave Chinner Date: Tue Sep 2 12:12:52 2014 +1000 xfs: don't zero partial page cache pages during O_DIRECT writes Similar to direct IO reads, direct IO writes are using truncate_pagecache_range to invalidate the page cache. This is incorrect due to the sub-block zeroing in the page cache that truncate_pagecache_range() triggers. This patch fixes things by using invalidate_inode_pages2_range instead. It preserves the page cache invalidation, but won't zero any pages. cc: stable@vger.kernel.org Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit 85e584da3212140ee80fd047f9058bbee0bc00d5 Author: Chris Mason Date: Tue Sep 2 12:12:52 2014 +1000 xfs: don't zero partial page cache pages during O_DIRECT writes xfs is using truncate_pagecache_range to invalidate the page cache during DIO reads. This is different from the other filesystems who only invalidate pages during DIO writes. truncate_pagecache_range is meant to be used when we are freeing the underlying data structs from disk, so it will zero any partial ranges in the page. This means a DIO read can zero out part of the page cache page, and it is possible the page will stay in cache. buffered reads will find an up to date page with zeros instead of the data actually on disk. This patch fixes things by using invalidate_inode_pages2_range instead. It preserves the page cache invalidation, but won't zero any pages. [dchinner: catch error and warn if it fails. Comment.] cc: stable@vger.kernel.org Signed-off-by: Chris Mason Reviewed-by: Dave Chinner Reviewed-by: Brian Foster Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit 22e757a49cf010703fcb9c9b4ef793248c39b0c2 Author: Dave Chinner Date: Tue Sep 2 12:12:51 2014 +1000 xfs: don't dirty buffers beyond EOF generic/263 is failing fsx at this point with a page spanning EOF that cannot be invalidated. The operations are: 1190 mapwrite 0x52c00 thru 0x5e569 (0xb96a bytes) 1191 mapread 0x5c000 thru 0x5d636 (0x1637 bytes) 1192 write 0x5b600 thru 0x771ff (0x1bc00 bytes) where 1190 extents EOF from 0x54000 to 0x5e569. When the direct IO write attempts to invalidate the cached page over this range, it fails with -EBUSY and so any attempt to do page invalidation fails. The real question is this: Why can't that page be invalidated after it has been written to disk and cleaned? Well, there's data on the first two buffers in the page (1k block size, 4k page), but the third buffer on the page (i.e. beyond EOF) is failing drop_buffers because it's bh->b_state == 0x3, which is BH_Uptodate | BH_Dirty. IOWs, there's dirty buffers beyond EOF. Say what? OK, set_buffer_dirty() is called on all buffers from __set_page_buffers_dirty(), regardless of whether the buffer is beyond EOF or not, which means that when we get to ->writepage, we have buffers marked dirty beyond EOF that we need to clean. So, we need to implement our own .set_page_dirty method that doesn't dirty buffers beyond EOF. This is messy because the buffer code is not meant to be shared and it has interesting locking issues on the buffer dirty bits. So just copy and paste it and then modify it to suit what we need. Note: the solutions the other filesystems and generic block code use of marking the buffers clean in ->writepage does not work for XFS. It still leaves dirty buffers beyond EOF and invalidations still fail. Hence rather than play whack-a-mole, this patch simply prevents those buffers from being dirtied in the first place. cc: Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Signed-off-by: Dave Chinner ----------------------------------------------------------------------- hooks/post-receive -- XFS development tree From samuel.granjeaud@inserm.fr Tue Sep 2 02:22:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 54C1B7F6A for ; Tue, 2 Sep 2014 02:22:25 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id F3D17AC001 for ; Tue, 2 Sep 2014 00:22:21 -0700 (PDT) X-ASG-Debug-ID: 1409642536-04bdf010976c6890001-NocioJ Received: from smtp.inserm.fr (smtp.inserm.fr [195.98.252.37]) by cuda.sgi.com with ESMTP id XUCvCIanFQfwldoe (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 02 Sep 2014 00:22:17 -0700 (PDT) X-Barracuda-Envelope-From: samuel.granjeaud@inserm.fr X-Barracuda-Apparent-Source-IP: 195.98.252.37 Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp.inserm.fr (SrvInserm) with ESMTP id 3F0B9168437 for ; Tue, 2 Sep 2014 09:22:15 +0200 (CEST) X-Virus-Scanned: amavisd-new at inserm.fr Received: from smtp.inserm.fr ([195.98.252.37]) by localhost (potentille.inserm.fr [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id T6RzsbPBXV4t for ; Tue, 2 Sep 2014 09:22:15 +0200 (CEST) Received: from cognac-lmde.crcm.mrs (236-ne1068.marseille.inserm.fr [195.220.68.236]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by smtp.inserm.fr (SrvInserm) with ESMTP id 0FDF1168481 for ; Tue, 2 Sep 2014 09:22:14 +0200 (CEST) Message-ID: <54057025.5090807@inserm.fr> Date: Tue, 02 Sep 2014 09:22:13 +0200 From: Samuel Granjeaud User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: Re: Run out of inodes? References: <54005108.1020203@inserm.fr> <20140829114806.GA17610@bfoster.bfoster> <5400802C.5050005@inserm.fr> <54009603.9050404@sandeen.net> <8d5fff2548d35737c6cebcb1f6382e80@inserm.fr> <20140901211932.342b4bb3@galadriel.home> X-ASG-Orig-Subj: Re: Run out of inodes? In-Reply-To: <20140901211932.342b4bb3@galadriel.home> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: smtp.inserm.fr[195.98.252.37] X-Barracuda-Start-Time: 1409642537 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9087 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Thanks Eric and Emmanuel. Here are the diagnosis of the installed samba distrib with openfiler 64 b= its # smb (auto-completion key) smbcontrol smbd smbpasswd smbprint smbstatus smbtar # which smbcontrol smbd smbpasswd smbprint smbstatus smbtar /usr/bin/smbcontrol /usr/sbin/smbd /usr/bin/smbpasswd /usr/bin/smbprint /usr/bin/smbstatus /usr/bin/smbtar # file /usr/sbin/smbd /usr/bin/smb* /usr/sbin/smbd: ELF 64-bit LSB shared object, x86-64, version 1=20 (SYSV), for GNU/Linux 2.4.0, stripped /usr/bin/smbcontrol: ELF 64-bit LSB shared object, x86-64, version 1=20 (SYSV), for GNU/Linux 2.4.0, stripped /usr/bin/smbpasswd: ELF 64-bit LSB shared object, x86-64, version 1=20 (SYSV), for GNU/Linux 2.4.0, stripped /usr/bin/smbprint: Bourne shell script text executable /usr/bin/smbstatus: ELF 64-bit LSB shared object, x86-64, version 1=20 (SYSV), for GNU/Linux 2.4.0, stripped /usr/bin/smbtar: Bourne shell script text executable [root@proteo-replica ~]# ldd /usr/sbin/smbd /usr/bin/smb* /usr/sbin/smbd: libldap-2.2.so.7 =3D> /usr/lib64/libldap-2.2.so.7 (0x00007fe4c97ff00= 0) liblber-2.2.so.7 =3D> /usr/lib64/liblber-2.2.so.7 (0x00007fe4c96f000= 0) libgssapi_krb5.so.2 =3D> /usr/kerberos/lib64/libgssapi_krb5.so.2=20 (0x00007fe4c95d8000) libkrb5.so.3 =3D> /usr/kerberos/lib64/libkrb5.so.3 (0x00007fe4c945e0= 00) libk5crypto.so.3 =3D> /usr/kerberos/lib64/libk5crypto.so.3=20 (0x00007fe4c933a000) libkrb5support.so.0 =3D> /usr/kerberos/lib64/libkrb5support.so.0=20 (0x00007fe4c9237000) libcom_err.so.3 =3D> /usr/kerberos/lib64/libcom_err.so.3=20 (0x00007fe4c9133000) libresolv.so.2 =3D> /lib64/libresolv.so.2 (0x00007fe4c9020000) libcrypt.so.1 =3D> /lib64/libcrypt.so.1 (0x00007fe4c8eed000) libpam.so.0 =3D> /lib64/libpam.so.0 (0x00007fe4c8de5000) libacl.so.1 =3D> /lib64/libacl.so.1 (0x00007fe4c8cdd000) libattr.so.1 =3D> /lib64/libattr.so.1 (0x00007fe4c8bd9000) libcap.so.1 =3D> /lib64/libcap.so.1 (0x00007fe4c8ad5000) libnsl.so.1 =3D> /lib64/libnsl.so.1 (0x00007fe4c89bf000) libdl.so.2 =3D> /lib64/libdl.so.2 (0x00007fe4c88bc000) librt.so.1 =3D> /lib64/tls/librt.so.1 (0x00007fe4c87a2000) libpopt.so.0 =3D> /usr/lib64/libpopt.so.0 (0x00007fe4c869a000) libtalloc.so.1 =3D> /usr/lib64/libtalloc.so.1 (0x00007fe4c8592000) libtdb.so.1 =3D> /usr/lib64/libtdb.so.1 (0x00007fe4c8485000) libwbclient.so.0 =3D> /usr/lib64/libwbclient.so.0 (0x00007fe4c837900= 0) libz.so.1 =3D> /usr/lib64/libz.so.1 (0x00007fe4c8264000) libc.so.6 =3D> /lib64/tls/libc.so.6 (0x00007fe4c803e000) libsasl2.so.2 =3D> /usr/lib64/libsasl2.so.2 (0x00007fe4c7f27000) libssl.so.5 =3D> /lib64/libssl.so.5 (0x00007fe4c7dde000) libcrypto.so.5 =3D> /lib64/libcrypto.so.5 (0x00007fe4c7b6e000) /lib64/ld-linux-x86-64.so.2 (0x00007fe4c9935000) libpthread.so.0 =3D> /lib64/tls/libpthread.so.0 (0x00007fe4c7a5a000) /usr/bin/smbcontrol: libcap.so.1 =3D> /lib64/libcap.so.1 (0x00007f6133e37000) libresolv.so.2 =3D> /lib64/libresolv.so.2 (0x00007f6133d24000) libnsl.so.1 =3D> /lib64/libnsl.so.1 (0x00007f6133c0e000) libdl.so.2 =3D> /lib64/libdl.so.2 (0x00007f6133b0b000) librt.so.1 =3D> /lib64/tls/librt.so.1 (0x00007f61339f1000) libldap-2.2.so.7 =3D> /usr/lib64/libldap-2.2.so.7 (0x00007f61338bb00= 0) liblber-2.2.so.7 =3D> /usr/lib64/liblber-2.2.so.7 (0x00007f61337ac00= 0) libpopt.so.0 =3D> /usr/lib64/libpopt.so.0 (0x00007f61336a4000) libtalloc.so.1 =3D> /usr/lib64/libtalloc.so.1 (0x00007f613359c000) libtdb.so.1 =3D> /usr/lib64/libtdb.so.1 (0x00007f613348f000) libc.so.6 =3D> /lib64/tls/libc.so.6 (0x00007f6133269000) /lib64/ld-linux-x86-64.so.2 (0x00007f6133f3b000) libpthread.so.0 =3D> /lib64/tls/libpthread.so.0 (0x00007f6133155000) libsasl2.so.2 =3D> /usr/lib64/libsasl2.so.2 (0x00007f613303e000) libssl.so.5 =3D> /lib64/libssl.so.5 (0x00007f6132ef5000) libcrypto.so.5 =3D> /lib64/libcrypto.so.5 (0x00007f6132c85000) libgssapi_krb5.so.2 =3D> /usr/kerberos/lib64/libgssapi_krb5.so.2=20 (0x00007f6132b6d000) libkrb5.so.3 =3D> /usr/kerberos/lib64/libkrb5.so.3 (0x00007f61329f30= 00) libcom_err.so.3 =3D> /usr/kerberos/lib64/libcom_err.so.3=20 (0x00007f61328ef000) libk5crypto.so.3 =3D> /usr/kerberos/lib64/libk5crypto.so.3=20 (0x00007f61327cb000) libz.so.1 =3D> /usr/lib64/libz.so.1 (0x00007f61326b6000) libkrb5support.so.0 =3D> /usr/kerberos/lib64/libkrb5support.so.0=20 (0x00007f61325b3000) /usr/bin/smbpasswd: libldap-2.2.so.7 =3D> /usr/lib64/libldap-2.2.so.7 (0x00007f9eaea1f00= 0) liblber-2.2.so.7 =3D> /usr/lib64/liblber-2.2.so.7 (0x00007f9eae91000= 0) libcap.so.1 =3D> /lib64/libcap.so.1 (0x00007f9eae80c000) libresolv.so.2 =3D> /lib64/libresolv.so.2 (0x00007f9eae6f9000) libnsl.so.1 =3D> /lib64/libnsl.so.1 (0x00007f9eae5e3000) libdl.so.2 =3D> /lib64/libdl.so.2 (0x00007f9eae4e0000) librt.so.1 =3D> /lib64/tls/librt.so.1 (0x00007f9eae3c6000) libpopt.so.0 =3D> /usr/lib64/libpopt.so.0 (0x00007f9eae2be000) libgssapi_krb5.so.2 =3D> /usr/kerberos/lib64/libgssapi_krb5.so.2=20 (0x00007f9eae1a6000) libkrb5.so.3 =3D> /usr/kerberos/lib64/libkrb5.so.3 (0x00007f9eae02c0= 00) libk5crypto.so.3 =3D> /usr/kerberos/lib64/libk5crypto.so.3=20 (0x00007f9eadf08000) libkrb5support.so.0 =3D> /usr/kerberos/lib64/libkrb5support.so.0=20 (0x00007f9eade05000) libcom_err.so.3 =3D> /usr/kerberos/lib64/libcom_err.so.3=20 (0x00007f9eadd01000) libtalloc.so.1 =3D> /usr/lib64/libtalloc.so.1 (0x00007f9eadbf9000) libtdb.so.1 =3D> /usr/lib64/libtdb.so.1 (0x00007f9eadaec000) libwbclient.so.0 =3D> /usr/lib64/libwbclient.so.0 (0x00007f9ead9e000= 0) libz.so.1 =3D> /usr/lib64/libz.so.1 (0x00007f9ead8cb000) libc.so.6 =3D> /lib64/tls/libc.so.6 (0x00007f9ead6a5000) libsasl2.so.2 =3D> /usr/lib64/libsasl2.so.2 (0x00007f9ead58e000) libssl.so.5 =3D> /lib64/libssl.so.5 (0x00007f9ead445000) libcrypto.so.5 =3D> /lib64/libcrypto.so.5 (0x00007f9ead1d5000) /lib64/ld-linux-x86-64.so.2 (0x00007f9eaeb55000) libpthread.so.0 =3D> /lib64/tls/libpthread.so.0 (0x00007f9ead0c1000) /usr/bin/smbprint: not a dynamic executable /usr/bin/smbstatus: libcap.so.1 =3D> /lib64/libcap.so.1 (0x00007ffc9b5d5000) libresolv.so.2 =3D> /lib64/libresolv.so.2 (0x00007ffc9b4c2000) libnsl.so.1 =3D> /lib64/libnsl.so.1 (0x00007ffc9b3ac000) libdl.so.2 =3D> /lib64/libdl.so.2 (0x00007ffc9b2a9000) librt.so.1 =3D> /lib64/tls/librt.so.1 (0x00007ffc9b18f000) libldap-2.2.so.7 =3D> /usr/lib64/libldap-2.2.so.7 (0x00007ffc9b05900= 0) liblber-2.2.so.7 =3D> /usr/lib64/liblber-2.2.so.7 (0x00007ffc9af4a00= 0) libpopt.so.0 =3D> /usr/lib64/libpopt.so.0 (0x00007ffc9ae42000) libtalloc.so.1 =3D> /usr/lib64/libtalloc.so.1 (0x00007ffc9ad3a000) libtdb.so.1 =3D> /usr/lib64/libtdb.so.1 (0x00007ffc9ac2d000) libc.so.6 =3D> /lib64/tls/libc.so.6 (0x00007ffc9aa07000) /lib64/ld-linux-x86-64.so.2 (0x00007ffc9b6d9000) libpthread.so.0 =3D> /lib64/tls/libpthread.so.0 (0x00007ffc9a8f3000) libsasl2.so.2 =3D> /usr/lib64/libsasl2.so.2 (0x00007ffc9a7dc000) libssl.so.5 =3D> /lib64/libssl.so.5 (0x00007ffc9a693000) libcrypto.so.5 =3D> /lib64/libcrypto.so.5 (0x00007ffc9a423000) libgssapi_krb5.so.2 =3D> /usr/kerberos/lib64/libgssapi_krb5.so.2=20 (0x00007ffc9a30b000) libkrb5.so.3 =3D> /usr/kerberos/lib64/libkrb5.so.3 (0x00007ffc9a1910= 00) libcom_err.so.3 =3D> /usr/kerberos/lib64/libcom_err.so.3=20 (0x00007ffc9a08d000) libk5crypto.so.3 =3D> /usr/kerberos/lib64/libk5crypto.so.3=20 (0x00007ffc99f69000) libz.so.1 =3D> /usr/lib64/libz.so.1 (0x00007ffc99e54000) libkrb5support.so.0 =3D> /usr/kerberos/lib64/libkrb5support.so.0=20 (0x00007ffc99d51000) /usr/bin/smbtar: not a dynamic executable [root@proteo-replica ~]# ldd /usr/sbin/smbd /usr/bin/smb* | grep -r "lib6= 4" libldap-2.2.so.7 =3D> /usr/lib64/libldap-2.2.so.7 (0x00007fe32220500= 0) liblber-2.2.so.7 =3D> /usr/lib64/liblber-2.2.so.7 (0x00007fe3220f600= 0) libgssapi_krb5.so.2 =3D> /usr/kerberos/lib64/libgssapi_krb5.so.2=20 (0x00007fe321fde000) libkrb5.so.3 =3D> /usr/kerberos/lib64/libkrb5.so.3 (0x00007fe321e640= 00) libk5crypto.so.3 =3D> /usr/kerberos/lib64/libk5crypto.so.3=20 (0x00007fe321d40000) libkrb5support.so.0 =3D> /usr/kerberos/lib64/libkrb5support.so.0=20 (0x00007fe321c3d000) libcom_err.so.3 =3D> /usr/kerberos/lib64/libcom_err.so.3=20 (0x00007fe321b39000) libresolv.so.2 =3D> /lib64/libresolv.so.2 (0x00007fe321a26000) libcrypt.so.1 =3D> /lib64/libcrypt.so.1 (0x00007fe3218f3000) libpam.so.0 =3D> /lib64/libpam.so.0 (0x00007fe3217eb000) libacl.so.1 =3D> /lib64/libacl.so.1 (0x00007fe3216e3000) libattr.so.1 =3D> /lib64/libattr.so.1 (0x00007fe3215df000) libcap.so.1 =3D> /lib64/libcap.so.1 (0x00007fe3214db000) libnsl.so.1 =3D> /lib64/libnsl.so.1 (0x00007fe3213c5000) libdl.so.2 =3D> /lib64/libdl.so.2 (0x00007fe3212c2000) librt.so.1 =3D> /lib64/tls/librt.so.1 (0x00007fe3211a8000) libpopt.so.0 =3D> /usr/lib64/libpopt.so.0 (0x00007fe3210a0000) libtalloc.so.1 =3D> /usr/lib64/libtalloc.so.1 (0x00007fe320f98000) libtdb.so.1 =3D> /usr/lib64/libtdb.so.1 (0x00007fe320e8b000) libwbclient.so.0 =3D> /usr/lib64/libwbclient.so.0 (0x00007fe320d7f00= 0) libz.so.1 =3D> /usr/lib64/libz.so.1 (0x00007fe320c6a000) libc.so.6 =3D> /lib64/tls/libc.so.6 (0x00007fe320a44000) libsasl2.so.2 =3D> /usr/lib64/libsasl2.so.2 (0x00007fe32092d000) libssl.so.5 =3D> /lib64/libssl.so.5 (0x00007fe3207e4000) libcrypto.so.5 =3D> /lib64/libcrypto.so.5 (0x00007fe320574000) /lib64/ld-linux-x86-64.so.2 (0x00007fe32233b000) libpthread.so.0 =3D> /lib64/tls/libpthread.so.0 (0x00007fe320460000) libcap.so.1 =3D> /lib64/libcap.so.1 (0x00007fad1f282000) libresolv.so.2 =3D> /lib64/libresolv.so.2 (0x00007fad1f16f000) libnsl.so.1 =3D> /lib64/libnsl.so.1 (0x00007fad1f059000) libdl.so.2 =3D> /lib64/libdl.so.2 (0x00007fad1ef56000) librt.so.1 =3D> /lib64/tls/librt.so.1 (0x00007fad1ee3c000) libldap-2.2.so.7 =3D> /usr/lib64/libldap-2.2.so.7 (0x00007fad1ed0600= 0) liblber-2.2.so.7 =3D> /usr/lib64/liblber-2.2.so.7 (0x00007fad1ebf700= 0) libpopt.so.0 =3D> /usr/lib64/libpopt.so.0 (0x00007fad1eaef000) libtalloc.so.1 =3D> /usr/lib64/libtalloc.so.1 (0x00007fad1e9e7000) libtdb.so.1 =3D> /usr/lib64/libtdb.so.1 (0x00007fad1e8da000) libc.so.6 =3D> /lib64/tls/libc.so.6 (0x00007fad1e6b4000) /lib64/ld-linux-x86-64.so.2 (0x00007fad1f386000) libpthread.so.0 =3D> /lib64/tls/libpthread.so.0 (0x00007fad1e5a0000) libsasl2.so.2 =3D> /usr/lib64/libsasl2.so.2 (0x00007fad1e489000) libssl.so.5 =3D> /lib64/libssl.so.5 (0x00007fad1e340000) libcrypto.so.5 =3D> /lib64/libcrypto.so.5 (0x00007fad1e0d0000) libgssapi_krb5.so.2 =3D> /usr/kerberos/lib64/libgssapi_krb5.so.2=20 (0x00007fad1dfb8000) libkrb5.so.3 =3D> /usr/kerberos/lib64/libkrb5.so.3 (0x00007fad1de3e0= 00) libcom_err.so.3 =3D> /usr/kerberos/lib64/libcom_err.so.3=20 (0x00007fad1dd3a000) libk5crypto.so.3 =3D> /usr/kerberos/lib64/libk5crypto.so.3=20 (0x00007fad1dc16000) libz.so.1 =3D> /usr/lib64/libz.so.1 (0x00007fad1db01000) libkrb5support.so.0 =3D> /usr/kerberos/lib64/libkrb5support.so.0=20 (0x00007fad1d9fe000) libldap-2.2.so.7 =3D> /usr/lib64/libldap-2.2.so.7 (0x00007f4551e9200= 0) liblber-2.2.so.7 =3D> /usr/lib64/liblber-2.2.so.7 (0x00007f4551d8300= 0) libcap.so.1 =3D> /lib64/libcap.so.1 (0x00007f4551c7f000) libresolv.so.2 =3D> /lib64/libresolv.so.2 (0x00007f4551b6c000) libnsl.so.1 =3D> /lib64/libnsl.so.1 (0x00007f4551a56000) libdl.so.2 =3D> /lib64/libdl.so.2 (0x00007f4551953000) librt.so.1 =3D> /lib64/tls/librt.so.1 (0x00007f4551839000) libpopt.so.0 =3D> /usr/lib64/libpopt.so.0 (0x00007f4551731000) libgssapi_krb5.so.2 =3D> /usr/kerberos/lib64/libgssapi_krb5.so.2=20 (0x00007f4551619000) libkrb5.so.3 =3D> /usr/kerberos/lib64/libkrb5.so.3 (0x00007f455149f0= 00) libk5crypto.so.3 =3D> /usr/kerberos/lib64/libk5crypto.so.3=20 (0x00007f455137b000) libkrb5support.so.0 =3D> /usr/kerberos/lib64/libkrb5support.so.0=20 (0x00007f4551278000) libcom_err.so.3 =3D> /usr/kerberos/lib64/libcom_err.so.3=20 (0x00007f4551174000) libtalloc.so.1 =3D> /usr/lib64/libtalloc.so.1 (0x00007f455106c000) libtdb.so.1 =3D> /usr/lib64/libtdb.so.1 (0x00007f4550f5f000) libwbclient.so.0 =3D> /usr/lib64/libwbclient.so.0 (0x00007f4550e5300= 0) libz.so.1 =3D> /usr/lib64/libz.so.1 (0x00007f4550d3e000) libc.so.6 =3D> /lib64/tls/libc.so.6 (0x00007f4550b18000) libsasl2.so.2 =3D> /usr/lib64/libsasl2.so.2 (0x00007f4550a01000) libssl.so.5 =3D> /lib64/libssl.so.5 (0x00007f45508b8000) libcrypto.so.5 =3D> /lib64/libcrypto.so.5 (0x00007f4550648000) /lib64/ld-linux-x86-64.so.2 (0x00007f4551fc8000) libpthread.so.0 =3D> /lib64/tls/libpthread.so.0 (0x00007f4550534000) libcap.so.1 =3D> /lib64/libcap.so.1 (0x00007f03c54c6000) libresolv.so.2 =3D> /lib64/libresolv.so.2 (0x00007f03c53b3000) libnsl.so.1 =3D> /lib64/libnsl.so.1 (0x00007f03c529d000) libdl.so.2 =3D> /lib64/libdl.so.2 (0x00007f03c519a000) librt.so.1 =3D> /lib64/tls/librt.so.1 (0x00007f03c5080000) libldap-2.2.so.7 =3D> /usr/lib64/libldap-2.2.so.7 (0x00007f03c4f4a00= 0) liblber-2.2.so.7 =3D> /usr/lib64/liblber-2.2.so.7 (0x00007f03c4e3b00= 0) libpopt.so.0 =3D> /usr/lib64/libpopt.so.0 (0x00007f03c4d33000) libtalloc.so.1 =3D> /usr/lib64/libtalloc.so.1 (0x00007f03c4c2b000) libtdb.so.1 =3D> /usr/lib64/libtdb.so.1 (0x00007f03c4b1e000) libc.so.6 =3D> /lib64/tls/libc.so.6 (0x00007f03c48f8000) /lib64/ld-linux-x86-64.so.2 (0x00007f03c55ca000) libpthread.so.0 =3D> /lib64/tls/libpthread.so.0 (0x00007f03c47e4000) libsasl2.so.2 =3D> /usr/lib64/libsasl2.so.2 (0x00007f03c46cd000) libssl.so.5 =3D> /lib64/libssl.so.5 (0x00007f03c4584000) libcrypto.so.5 =3D> /lib64/libcrypto.so.5 (0x00007f03c4314000) libgssapi_krb5.so.2 =3D> /usr/kerberos/lib64/libgssapi_krb5.so.2=20 (0x00007f03c41fc000) libkrb5.so.3 =3D> /usr/kerberos/lib64/libkrb5.so.3 (0x00007f03c40820= 00) libcom_err.so.3 =3D> /usr/kerberos/lib64/libcom_err.so.3=20 (0x00007f03c3f7e000) libk5crypto.so.3 =3D> /usr/kerberos/lib64/libk5crypto.so.3=20 (0x00007f03c3e5a000) libz.so.1 =3D> /usr/lib64/libz.so.1 (0x00007f03c3d45000) libkrb5support.so.0 =3D> /usr/kerberos/lib64/libkrb5support.so.0=20 (0x00007f03c3c42000) # ldd /usr/sbin/smbd /usr/bin/smb* | grep -v "lib64" /usr/sbin/smbd: /usr/bin/smbcontrol: /usr/bin/smbpasswd: /usr/bin/smbprint: not a dynamic executable /usr/bin/smbstatus: /usr/bin/smbtar: not a dynamic executable If there is no other binary in relation to Samba I didn't think about, I=20 guess the Samba package is 64 bits. This should prevent me from any=20 surprise. Best. Eric Sandeen wrote, On 31/08/14 04:46: > On 8/30/14, 2:33 PM, Samuel GRANJEAUD IR/INSERM wrote: >> Enabling the inode64 option has solved the problem. >> >> Final question: could some issues appear with SAMBA? > > ah, what sort of issues? > > Any application which uses i.e. a 32-bit stat() interface will return=20 > -EOVERFLOW on a 64-bit inode. > > http://sandeen.net/wordpress/computers/the-world-wants-32-bit-inodes/ > http://blog.fmeh.org/2013/05/11/does-the-world-need-32-bit-inodes/ > > -Eric > Emmanuel Florac wrote, On 01/09/14 21:19: > Le Sat, 30 Aug 2014 21:33:46 +0200 vous =C3=A9criviez: > >> Final question: could some issues appear with SAMBA? >> >> # smbstatus -V >> Version 3.4.5 > Is your whole distribution 64 bits, or only the kernel? However, I've > never had any problem with samba, but some with NFS. > From alex@zadarastorage.com Tue Sep 2 04:51:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.9 required=5.0 tests=STOX_REPLY_TYPE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 3F5F57F51 for ; Tue, 2 Sep 2014 04:51:45 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1F4AB8F8050 for ; Tue, 2 Sep 2014 02:51:42 -0700 (PDT) X-ASG-Debug-ID: 1409651495-04cb6c54fe72e260001-NocioJ Received: from mail-wi0-f172.google.com (mail-wi0-f172.google.com [209.85.212.172]) by cuda.sgi.com with ESMTP id ySVJtjXfH6zaM0GT (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Tue, 02 Sep 2014 02:51:35 -0700 (PDT) X-Barracuda-Envelope-From: alex@zadarastorage.com X-Barracuda-Apparent-Source-IP: 209.85.212.172 Received: by mail-wi0-f172.google.com with SMTP id n3so13952010wiv.17 for ; Tue, 02 Sep 2014 02:51:34 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:from:to:cc:references:in-reply-to :subject:date:mime-version:content-type:content-transfer-encoding :importance; bh=C1w74Ahke2H7oGiiLlR30fMF9vExd0zun7s3UMnavKg=; b=d0lsmjouSAa2KkZh7Iw/dIAsiNjz8PLRUqCMtk5DUwGJ7hE1NQpuRiGXP3K6cfOzp6 wpk3J7gsS2YmMnflJV1iwEDgBfPBA501bD168TYOrZx8/VAjEjHTYv8lJIxHursbIBAx bgjhPOlC1IU/oLBpJjBM5NMvwJUXl6aoaDOi4pkXgy0iQcy9V9YZJsVkV3Lz1eme3IRx eoE7SdLOsnBSvbb1aThrF6+rEwvMm+NjigS14rjTpxLhV2XRqbRVsvOsB52c7/i7PpyA /iYTzSixw5Dz2PHHFj731BN4jngUAfDyH2pzOl999uOl+xYTQa5Mi/MIl2I5bt8M2e2i ni2Q== X-Gm-Message-State: ALoCoQmthf+ygSd1YyXyhsKZBkZBkMq16PufKRfPrxi/DiZL+opsNiZl8Mhpp1wWmBM8mMMfZOSf X-Received: by 10.194.185.230 with SMTP id ff6mr1564230wjc.120.1409651494506; Tue, 02 Sep 2014 02:51:34 -0700 (PDT) Received: from alyakaslap (bzq-169-168-31-234.red.bezeqint.net. [31.168.169.234]) by mx.google.com with ESMTPSA id lh11sm32626225wic.17.2014.09.02.02.51.33 for (version=TLSv1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 02 Sep 2014 02:51:33 -0700 (PDT) Message-ID: <3476A2CBDE694DC6BD06DBDD15165151@alyakaslap> From: "Alex Lyakas" To: "Brian Foster" , "Dave Chinner" Cc: References: <1408648692-15957-1-git-send-email-bfoster@redhat.com> <20140825142025.GA10135@bfoster.bfoster> <20140831210507.GA11913@bfoster.bfoster> In-Reply-To: <20140831210507.GA11913@bfoster.bfoster> Subject: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error Date: Tue, 2 Sep 2014 12:51:35 +0300 X-ASG-Orig-Subj: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 15.4.3555.308 X-MimeOLE: Produced By Microsoft MimeOLE V15.4.3555.308 X-Barracuda-Connect: mail-wi0-f172.google.com[209.85.212.172] X-Barracuda-Start-Time: 1409651495 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, MARKETING_SUBJECT, STOX_REPLY_TYPE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9090 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 STOX_REPLY_TYPE STOX_REPLY_TYPE 0.60 MARKETING_SUBJECT Subject contains popular marketing words 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header Hi Brian, Dave, I tested this patch on 3.8.13 kernel with the scenario I described in http://oss.sgi.com/pipermail/xfs/2014-August/037637.html, but I still see the issue. I placed the metadump at https://drive.google.com/file/d/0ByBy89zr3kJNV2UxMERNTkE4aHM/edit?usp=sharing During log recovery, 3 IO errors are encountered: [ 340.381199] XFS (dm-0): Mounting Filesystem [ 340.439897] XFS (dm-0): Sleep 10s before xlog_do_recover [ 350.440143] XFS (dm-0): Starting recovery (logdev: internal) [ 351.584647] XFS (dm-0): metadata I/O error: block 0x1 ("xlog_recover_iodone") error 28 numblks 1 [ 351.584660] XFS (dm-0): metadata I/O error: block 0x40 ("xlog_recover_iodone") error 28 numblks 16 [ 351.584665] XFS (dm-0): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/zadara-btrfs/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0372728 [ 351.584969] XFS (dm-0): I/O Error Detected. Shutting down filesystem [ 351.584970] XFS (dm-0): Please umount the filesystem and rectify the problem(s) [ 351.585047] XFS (dm-0): metadata I/O error: block 0x1e00040 ("xlog_recover_iodone") error 28 numblks 16 [ 351.585050] XFS (dm-0): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/zadara-btrfs/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0372728 [ 351.585068] XFS (dm-0): log mount/recovery failed: error 28 [ 351.585332] XFS (dm-0): log mount failed Two IO error callbacks are handled before XFS is unmounted, but the last one crashes with stack[1]. Do I need some or all of the 9 patches that Dave posted? (They do not apply to my kernel, so I need to apply them by hand). Thanks, Alex. [1] [ 351.592349] general protection fault: 0000 [#1] SMP [ 351.593440] Modules linked in: xfs(O) libcrc32c dm_linear_custom(O) nfsv3 deflate zlib_deflate ctr twofish_generic twofish_x86_64_3way glue_helper lrw xts gf128mul twofish_x86_64 twofish_common camellia_generic serpent_generic blowfish_generic blowfish_x86_64 blowfish_common cast5_generic cast_common des_generic xcbc rmd160 sha512_generic crypto_null af_key xfrm_algo kvm ppdev vfat fat dm_round_robin microcode nfsd nfs_acl parport_pc dm_iostat(O) dm_multipath(O) psmouse serio_raw mac_hid i2c_piix4 lp parport nfsv4 auth_rpcgss nfs fscache lockd sunrpc floppy [ 351.596118] CPU 3 [ 351.596118] Pid: 133, comm: kworker/3:1H Tainted: G W O 3.8.13-557-generic #1382000791 Bochs Bochs [ 351.596118] RIP: 0010:[] [] strnlen+0xb/0x30 [ 351.596118] RSP: 0018:ffff880035405b08 EFLAGS: 00010086 [ 351.596118] RAX: 0000000000000000 RBX: ffffffff81e6a4e7 RCX: 0000000000000000 [ 351.596118] RDX: e4e8390a265c0000 RSI: ffffffffffffffff RDI: e4e8390a265c0000 [ 351.596118] RBP: ffff880035405b08 R08: 000000000000ffff R09: 000000000000ffff [ 351.596118] R10: 0000000000000000 R11: 0000000000000331 R12: e4e8390a265c0000 [ 351.596118] R13: ffffffff81e6a8c0 R14: 0000000000000000 R15: 000000000000ffff [ 351.596118] FS: 0000000000000000(0000) GS:ffff88007fd80000(0000) knlGS:0000000000000000 [ 351.596118] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 351.596118] CR2: 00007fff7bfe1c38 CR3: 0000000035a59000 CR4: 00000000000006e0 [ 351.596118] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 351.596118] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 351.596118] Process kworker/3:1H (pid: 133, threadinfo ffff880035404000, task ffff880035ae5c00) [ 351.596118] Stack: [ 351.596118] ffff880035405b48 ffffffff8133dd5e ffff880035405b28 ffffffff81e6a4e7 [ 351.596118] ffffffffa03b2bc4 ffff880035405c80 ffffffffa03b2bc4 ffffffff81e6a8c0 [ 351.596118] ffff880035405bc8 ffffffff8133ef59 ffff880035405bc8 ffffffff81059aa7 [ 351.596118] Call Trace: [ 351.596118] [] string.isra.4+0x3e/0xd0 [ 351.596118] [] vsnprintf+0x219/0x640 [ 351.596118] [] ? msg_print_text+0xb7/0x1b0 [ 351.596118] [] vscnprintf+0x11/0x30 [ 351.596118] [] vprintk_emit+0xc1/0x490 [ 351.596118] [] ? vprintk_emit+0x170/0x490 [ 351.596118] [] printk+0x61/0x63 [ 351.596118] [] __xfs_printk+0x31/0x50 [xfs] [ 351.596118] [] xfs_notice+0x53/0x60 [xfs] [ 351.596118] [] xfs_do_force_shutdown+0xf5/0x180 [xfs] [ 351.596118] [] ? xlog_recover_iodone+0x48/0x70 [xfs] [ 351.596118] [] xlog_recover_iodone+0x48/0x70 [xfs] [ 351.596118] [] xfs_buf_iodone_work+0x4d/0xb0 [xfs] [ 351.596118] [] process_one_work+0x141/0x4a0 [ 351.596118] [] worker_thread+0x168/0x410 [ 351.596118] [] ? manage_workers+0x120/0x120 [ 351.596118] [] kthread+0xc0/0xd0 [ 351.596118] [] ? flush_kthread_worker+0xb0/0xb0 [ 351.596118] [] ret_from_fork+0x7c/0xb0 [ 351.596118] [] ? flush_kthread_worker+0xb0/0xb0 [ 351.596118] Code: 31 c0 80 3f 00 55 48 89 e5 74 11 48 89 f8 66 90 48 83 c0 01 80 38 00 75 f7 48 29 f8 5d c3 66 90 55 31 c0 48 85 f6 48 89 e5 74 23 <80> 3f 00 74 1e 48 89 f8 eb 0c 0f 1f 00 48 83 ee 01 80 38 00 74 [ 351.596118] RIP [] strnlen+0xb/0x30 [ 351.596118] RSP [ 351.596118] ---[ end trace cb6b9820566f6848 ]--- -----Original Message----- From: Brian Foster Sent: 01 September, 2014 12:05 AM To: Alex Lyakas Cc: xfs@oss.sgi.com ; Dave Chinner Subject: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error On Sun, Aug 31, 2014 at 11:50:52AM +0300, Alex Lyakas wrote: > Hi Brian, Dave, > I tested this patch on kernel 3.16, top commit: > > commit 19583ca584d6f574384e17fe7613dfaeadcdc4a6 > Author: Linus Torvalds > Date: Sun Aug 3 15:25:02 2014 -0700 > > Linux 3.16 > > and, yes, it appears to fix the issue. > Thanks. That settles that then, I think. We're reproducing different problems on the 3.8 stable kernel vs. a recent kernel using the same test case. > Trouble is that our production kernel is 3.8.13, and we cannot upgrade to > mainline kernel easily. Question is whether we can expect some patch > suitable for our kernel, or, since our kernel is EOL and not a long-term > one, we cannot? > Dave wrote a patch specifically to resolve this problem on older kernels: http://oss.sgi.com/archives/xfs/2014-08/msg00204.html Brian > Thanks for your help, > Alex. > > > -----Original Message----- From: Brian Foster > Sent: 25 August, 2014 5:20 PM > To: Alex Lyakas > Cc: xfs@oss.sgi.com ; Dave Chinner > Subject: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O > error > > On Sun, Aug 24, 2014 at 12:20:20PM +0300, Alex Lyakas wrote: > >Hi Brian, > > > >On Thu, Aug 21, 2014 at 10:18 PM, Brian Foster > >wrote: > >> XFS log recovery builds up an xlog_recover object as it passes through > >> the log operations on the physical log. These structures are managed > >> via > >> a hash table and are allocated when a new transaction is encountered > >> and > >> freed once a commit operation for the transaction is encountered. > >> > >> This state machine for active transactions is implemented by a > >> combination of xlog_do_recovery_pass(), which walks through the log > >> buffers and xlog_recover_process_data() which processes log operations > >> within each buffer. The latter function decides whether to allocate a > >> new xlog_recover, add to it or commit and ultimately free it. If an > >> error occurs at any point during the lifecycle of a particular > >> xlog_recover, xlog_recover_process_data() frees the object and returns > >> an error. > >> > >> xlog_recover_commit_trans() handles the final processing of the > >> transaction. It submits whatever I/O is required for the transaction > >> and > >> frees xlog_recover object along with the transaction items it tracks. > >> If > >> an error occurs at the final stages of the commit operation, such as > >> I/O > >> failure, both xlog_recover_commit_trans() and > >> xlog_recover_process_data() attempt to free the trans object. > >> > >> Modify xlog_recover_commit_trans() to only free the trans object on > >> successful completion of the trans, including any I/O errors that might > >> occur when recovering the log. > >> > >> Signed-off-by: Brian Foster > >> --- > >> > >> Hi all, > >> > >> I found that the recent buffer I/O rework fixes didn't address the > >> crash > >> reproduced by the dm-flakey/log recovery test case I posted recently. I > >> tracked the crash down to this, which allows the test to pass. This > >> addresses the crash I saw when running the reproducer manually with the > >> metadump that Alex posted as well. > >> > >> FWIW, I also went back and tested the xfs_buf_iowait() experiment in > >> both scenarios (Alex's metadump and xfstests test) and they all > >> reproduce the same crash for me. I think that either I'm still not > >> reproducing the original problem, something else might have > >> contaminated > >> the original xfs_buf_iowait() test to give a false positive, or > >> something else entirely is going on. > >> > >> Alex, > >> > >> If you have a chance, I think it might be interesting to see whether > >> you > >> reproduce any problems with this patch. It looks like this is a > >> regression introduced by: > >> > >> 2a84108f xfs: free the list of recovery items on error > >> > >> ... but I have no idea if that's in whatever kernel you're running. > >I am running kernel 3.8.13 with some changes (published at > >https://github.com/zadarastorage/zadara-xfs-pushback), but this > >problem also happens on pristine 3.8.13 from > >git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git, > >branch linux-stable-3.8.y. > > > >I do not have commit 2a84108f in this kernel. It was introduced in 3.14. > >I applied your patch to 3.8.13, but it doesn't fix the issue. Same > >problem happens when testing scenario that I described in > >http://oss.sgi.com/pipermail/xfs/2014-August/037637.html. > > > > Ok, thanks. Yeah, I don't see the double free regression in the 3.8.13 > stable branch. I went back to that kernel to try and confirm some > things. I do reproduce the problem with your metadump as well as the > test case I put together. I tested Dave's buf hold across sync I/O patch > and that does indeed prevent the problem. > > For whatever reason, neither the test case nor your metadump reproduce > the same problem on latest kernels. Instead, they reproduce this double > free regression. I suspect this is what you ran into when you reproduced > on a more recent kernel. If you'd like, feel free to try and verify that > by running your reproducer again on a recent kernel with this patch and > see if you can still reproduce a crash as with the 3.8.13 kernel. > > Brian > > >Thanks, > >Alex. > > > >> > >> Brian > >> > >> fs/xfs/xfs_log_recover.c | 11 ++++++++--- > >> 1 file changed, 8 insertions(+), 3 deletions(-) > >> > >> diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > >> index 176c4b3..daca9a6 100644 > >> --- a/fs/xfs/xfs_log_recover.c > >> +++ b/fs/xfs/xfs_log_recover.c > >> @@ -3528,10 +3528,15 @@ out: > >> if (!list_empty(&done_list)) > >> list_splice_init(&done_list, &trans->r_itemq); > >> > >> - xlog_recover_free_trans(trans); > >> - > >> error2 = xfs_buf_delwri_submit(&buffer_list); > >> - return error ? error : error2; > >> + > >> + if (!error) > >> + error = error2; > >> + /* caller frees trans on error */ > >> + if (!error) > >> + xlog_recover_free_trans(trans); > >> + > >> + return error; > >> } > >> > >> STATIC int > >> -- > >> 1.8.3.1 > >> > From bfoster@redhat.com Tue Sep 2 07:36:47 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 696D57F6F for ; Tue, 2 Sep 2014 07:36:47 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 44A1B8F8050 for ; Tue, 2 Sep 2014 05:36:47 -0700 (PDT) X-ASG-Debug-ID: 1409661405-04cbb054859c15c0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id fi9qAcBfjARZCd3m (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 02 Sep 2014 05:36:46 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s82Cah5K023873 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 2 Sep 2014 08:36:44 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s82CahfC003564; Tue, 2 Sep 2014 08:36:43 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 2B4FB12577F; Tue, 2 Sep 2014 08:36:42 -0400 (EDT) Date: Tue, 2 Sep 2014 08:36:42 -0400 From: Brian Foster To: Alex Lyakas Cc: Dave Chinner , xfs@oss.sgi.com Subject: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error Message-ID: <20140902123641.GA24452@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error References: <1408648692-15957-1-git-send-email-bfoster@redhat.com> <20140825142025.GA10135@bfoster.bfoster> <20140831210507.GA11913@bfoster.bfoster> <3476A2CBDE694DC6BD06DBDD15165151@alyakaslap> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3476A2CBDE694DC6BD06DBDD15165151@alyakaslap> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409661406 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Sep 02, 2014 at 12:51:35PM +0300, Alex Lyakas wrote: > Hi Brian, Dave, > I tested this patch on 3.8.13 kernel with the scenario I described in > http://oss.sgi.com/pipermail/xfs/2014-August/037637.html, but I still see > the issue. > I placed the metadump at > https://drive.google.com/file/d/0ByBy89zr3kJNV2UxMERNTkE4aHM/edit?usp=sharing > > During log recovery, 3 IO errors are encountered: > [ 340.381199] XFS (dm-0): Mounting Filesystem > [ 340.439897] XFS (dm-0): Sleep 10s before xlog_do_recover > [ 350.440143] XFS (dm-0): Starting recovery (logdev: internal) > [ 351.584647] XFS (dm-0): metadata I/O error: block 0x1 > ("xlog_recover_iodone") error 28 numblks 1 > [ 351.584660] XFS (dm-0): metadata I/O error: block 0x40 > ("xlog_recover_iodone") error 28 numblks 16 > [ 351.584665] XFS (dm-0): xfs_do_force_shutdown(0x1) called from line 377 > of file /mnt/work/alex/zadara-btrfs/fs/xfs/xfs_log_recover.c. Return > address = 0xffffffffa0372728 > [ 351.584969] XFS (dm-0): I/O Error Detected. Shutting down filesystem > [ 351.584970] XFS (dm-0): Please umount the filesystem and rectify the > problem(s) > [ 351.585047] XFS (dm-0): metadata I/O error: block 0x1e00040 > ("xlog_recover_iodone") error 28 numblks 16 > [ 351.585050] XFS (dm-0): xfs_do_force_shutdown(0x1) called from line 377 > of file /mnt/work/alex/zadara-btrfs/fs/xfs/xfs_log_recover.c. Return > address = 0xffffffffa0372728 > [ 351.585068] XFS (dm-0): log mount/recovery failed: error 28 > [ 351.585332] XFS (dm-0): log mount failed > > Two IO error callbacks are handled before XFS is unmounted, but the last one > crashes with stack[1]. > I don't reproduce this with the metadump posted above. I suppose hardware/timing could make a difference, however. > Do I need some or all of the 9 patches that Dave posted? (They do not apply > to my kernel, so I need to apply them by hand). > Only the first patch is required for the stable tree. Did you have to manually apply that one? I had to, so it might be a good idea to post it as applied to your tree just to verify. That aside, I suppose the problem could be that we still don't wait for the I/O completion mechanism fully on the mount/log recovery side. E.g., we have a buffer reference, but the caller can still proceed to free the mp from which the error message derives the fs name. Brian > Thanks, > Alex. > > > [1] > [ 351.592349] general protection fault: 0000 [#1] SMP > [ 351.593440] Modules linked in: xfs(O) libcrc32c dm_linear_custom(O) nfsv3 > deflate zlib_deflate ctr twofish_generic twofish_x86_64_3way glue_helper lrw > xts gf128mul twofish_x86_64 twofish_common camellia_generic serpent_generic > blowfish_generic blowfish_x86_64 blowfish_common cast5_generic cast_common > des_generic xcbc rmd160 sha512_generic crypto_null af_key xfrm_algo kvm > ppdev vfat fat dm_round_robin microcode nfsd nfs_acl parport_pc dm_iostat(O) > dm_multipath(O) psmouse serio_raw mac_hid i2c_piix4 lp parport nfsv4 > auth_rpcgss nfs fscache lockd sunrpc floppy > [ 351.596118] CPU 3 > [ 351.596118] Pid: 133, comm: kworker/3:1H Tainted: G W O > 3.8.13-557-generic #1382000791 Bochs Bochs > [ 351.596118] RIP: 0010:[] [] > strnlen+0xb/0x30 > [ 351.596118] RSP: 0018:ffff880035405b08 EFLAGS: 00010086 > [ 351.596118] RAX: 0000000000000000 RBX: ffffffff81e6a4e7 RCX: > 0000000000000000 > [ 351.596118] RDX: e4e8390a265c0000 RSI: ffffffffffffffff RDI: > e4e8390a265c0000 > [ 351.596118] RBP: ffff880035405b08 R08: 000000000000ffff R09: > 000000000000ffff > [ 351.596118] R10: 0000000000000000 R11: 0000000000000331 R12: > e4e8390a265c0000 > [ 351.596118] R13: ffffffff81e6a8c0 R14: 0000000000000000 R15: > 000000000000ffff > [ 351.596118] FS: 0000000000000000(0000) GS:ffff88007fd80000(0000) > knlGS:0000000000000000 > [ 351.596118] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > [ 351.596118] CR2: 00007fff7bfe1c38 CR3: 0000000035a59000 CR4: > 00000000000006e0 > [ 351.596118] DR0: 0000000000000000 DR1: 0000000000000000 DR2: > 0000000000000000 > [ 351.596118] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: > 0000000000000400 > [ 351.596118] Process kworker/3:1H (pid: 133, threadinfo ffff880035404000, > task ffff880035ae5c00) > [ 351.596118] Stack: > [ 351.596118] ffff880035405b48 ffffffff8133dd5e ffff880035405b28 > ffffffff81e6a4e7 > [ 351.596118] ffffffffa03b2bc4 ffff880035405c80 ffffffffa03b2bc4 > ffffffff81e6a8c0 > [ 351.596118] ffff880035405bc8 ffffffff8133ef59 ffff880035405bc8 > ffffffff81059aa7 > [ 351.596118] Call Trace: > [ 351.596118] [] string.isra.4+0x3e/0xd0 > [ 351.596118] [] vsnprintf+0x219/0x640 > [ 351.596118] [] ? msg_print_text+0xb7/0x1b0 > [ 351.596118] [] vscnprintf+0x11/0x30 > [ 351.596118] [] vprintk_emit+0xc1/0x490 > [ 351.596118] [] ? vprintk_emit+0x170/0x490 > [ 351.596118] [] printk+0x61/0x63 > [ 351.596118] [] __xfs_printk+0x31/0x50 [xfs] > [ 351.596118] [] xfs_notice+0x53/0x60 [xfs] > [ 351.596118] [] xfs_do_force_shutdown+0xf5/0x180 [xfs] > [ 351.596118] [] ? xlog_recover_iodone+0x48/0x70 [xfs] > [ 351.596118] [] xlog_recover_iodone+0x48/0x70 [xfs] > [ 351.596118] [] xfs_buf_iodone_work+0x4d/0xb0 [xfs] > [ 351.596118] [] process_one_work+0x141/0x4a0 > [ 351.596118] [] worker_thread+0x168/0x410 > [ 351.596118] [] ? manage_workers+0x120/0x120 > [ 351.596118] [] kthread+0xc0/0xd0 > [ 351.596118] [] ? flush_kthread_worker+0xb0/0xb0 > [ 351.596118] [] ret_from_fork+0x7c/0xb0 > [ 351.596118] [] ? flush_kthread_worker+0xb0/0xb0 > [ 351.596118] Code: 31 c0 80 3f 00 55 48 89 e5 74 11 48 89 f8 66 90 48 83 > c0 01 80 38 00 75 f7 48 29 f8 5d c3 66 90 55 31 c0 48 85 f6 48 89 e5 74 23 > <80> 3f 00 74 1e 48 89 f8 eb 0c 0f 1f 00 48 83 ee 01 80 38 00 74 > [ 351.596118] RIP [] strnlen+0xb/0x30 > [ 351.596118] RSP > [ 351.596118] ---[ end trace cb6b9820566f6848 ]--- > > > > -----Original Message----- From: Brian Foster > Sent: 01 September, 2014 12:05 AM > To: Alex Lyakas > Cc: xfs@oss.sgi.com ; Dave Chinner > Subject: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O > error > > On Sun, Aug 31, 2014 at 11:50:52AM +0300, Alex Lyakas wrote: > >Hi Brian, Dave, > >I tested this patch on kernel 3.16, top commit: > > > >commit 19583ca584d6f574384e17fe7613dfaeadcdc4a6 > >Author: Linus Torvalds > >Date: Sun Aug 3 15:25:02 2014 -0700 > > > > Linux 3.16 > > > >and, yes, it appears to fix the issue. > > > > Thanks. That settles that then, I think. We're reproducing different > problems on the 3.8 stable kernel vs. a recent kernel using the same > test case. > > >Trouble is that our production kernel is 3.8.13, and we cannot upgrade to > >mainline kernel easily. Question is whether we can expect some patch > >suitable for our kernel, or, since our kernel is EOL and not a long-term > >one, we cannot? > > > > Dave wrote a patch specifically to resolve this problem on older > kernels: > > http://oss.sgi.com/archives/xfs/2014-08/msg00204.html > > Brian > > >Thanks for your help, > >Alex. > > > > > >-----Original Message----- From: Brian Foster > >Sent: 25 August, 2014 5:20 PM > >To: Alex Lyakas > >Cc: xfs@oss.sgi.com ; Dave Chinner > >Subject: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O > >error > > > >On Sun, Aug 24, 2014 at 12:20:20PM +0300, Alex Lyakas wrote: > >>Hi Brian, > >> > >>On Thu, Aug 21, 2014 at 10:18 PM, Brian Foster > >>wrote: > >>> XFS log recovery builds up an xlog_recover object as it passes through > >>> the log operations on the physical log. These structures are managed >> > >via > >>> a hash table and are allocated when a new transaction is encountered >> > >and > >>> freed once a commit operation for the transaction is encountered. > >>> > >>> This state machine for active transactions is implemented by a > >>> combination of xlog_do_recovery_pass(), which walks through the log > >>> buffers and xlog_recover_process_data() which processes log operations > >>> within each buffer. The latter function decides whether to allocate a > >>> new xlog_recover, add to it or commit and ultimately free it. If an > >>> error occurs at any point during the lifecycle of a particular > >>> xlog_recover, xlog_recover_process_data() frees the object and returns > >>> an error. > >>> > >>> xlog_recover_commit_trans() handles the final processing of the > >>> transaction. It submits whatever I/O is required for the transaction >> > >and > >>> frees xlog_recover object along with the transaction items it tracks. > >>> If > >>> an error occurs at the final stages of the commit operation, such as >> > >I/O > >>> failure, both xlog_recover_commit_trans() and > >>> xlog_recover_process_data() attempt to free the trans object. > >>> > >>> Modify xlog_recover_commit_trans() to only free the trans object on > >>> successful completion of the trans, including any I/O errors that might > >>> occur when recovering the log. > >>> > >>> Signed-off-by: Brian Foster > >>> --- > >>> > >>> Hi all, > >>> > >>> I found that the recent buffer I/O rework fixes didn't address the >> > >crash > >>> reproduced by the dm-flakey/log recovery test case I posted recently. I > >>> tracked the crash down to this, which allows the test to pass. This > >>> addresses the crash I saw when running the reproducer manually with the > >>> metadump that Alex posted as well. > >>> > >>> FWIW, I also went back and tested the xfs_buf_iowait() experiment in > >>> both scenarios (Alex's metadump and xfstests test) and they all > >>> reproduce the same crash for me. I think that either I'm still not > >>> reproducing the original problem, something else might have >> > >contaminated > >>> the original xfs_buf_iowait() test to give a false positive, or > >>> something else entirely is going on. > >>> > >>> Alex, > >>> > >>> If you have a chance, I think it might be interesting to see whether >> > >you > >>> reproduce any problems with this patch. It looks like this is a > >>> regression introduced by: > >>> > >>> 2a84108f xfs: free the list of recovery items on error > >>> > >>> ... but I have no idea if that's in whatever kernel you're running. > >>I am running kernel 3.8.13 with some changes (published at > >>https://github.com/zadarastorage/zadara-xfs-pushback), but this > >>problem also happens on pristine 3.8.13 from > >>git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git, > >>branch linux-stable-3.8.y. > >> > >>I do not have commit 2a84108f in this kernel. It was introduced in 3.14. > >>I applied your patch to 3.8.13, but it doesn't fix the issue. Same > >>problem happens when testing scenario that I described in > >>http://oss.sgi.com/pipermail/xfs/2014-August/037637.html. > >> > > > >Ok, thanks. Yeah, I don't see the double free regression in the 3.8.13 > >stable branch. I went back to that kernel to try and confirm some > >things. I do reproduce the problem with your metadump as well as the > >test case I put together. I tested Dave's buf hold across sync I/O patch > >and that does indeed prevent the problem. > > > >For whatever reason, neither the test case nor your metadump reproduce > >the same problem on latest kernels. Instead, they reproduce this double > >free regression. I suspect this is what you ran into when you reproduced > >on a more recent kernel. If you'd like, feel free to try and verify that > >by running your reproducer again on a recent kernel with this patch and > >see if you can still reproduce a crash as with the 3.8.13 kernel. > > > >Brian > > > >>Thanks, > >>Alex. > >> > >>> > >>> Brian > >>> > >>> fs/xfs/xfs_log_recover.c | 11 ++++++++--- > >>> 1 file changed, 8 insertions(+), 3 deletions(-) > >>> > >>> diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > >>> index 176c4b3..daca9a6 100644 > >>> --- a/fs/xfs/xfs_log_recover.c > >>> +++ b/fs/xfs/xfs_log_recover.c > >>> @@ -3528,10 +3528,15 @@ out: > >>> if (!list_empty(&done_list)) > >>> list_splice_init(&done_list, &trans->r_itemq); > >>> > >>> - xlog_recover_free_trans(trans); > >>> - > >>> error2 = xfs_buf_delwri_submit(&buffer_list); > >>> - return error ? error : error2; > >>> + > >>> + if (!error) > >>> + error = error2; > >>> + /* caller frees trans on error */ > >>> + if (!error) > >>> + xlog_recover_free_trans(trans); > >>> + > >>> + return error; > >>> } > >>> > >>> STATIC int > >>> -- > >>> 1.8.3.1 > >>> > > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Tue Sep 2 09:08:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 9B40D7F55 for ; Tue, 2 Sep 2014 09:08:19 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7C1A38F8059 for ; Tue, 2 Sep 2014 07:08:19 -0700 (PDT) X-ASG-Debug-ID: 1409666897-04cbb054889c4770001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id pJtnD8iqYoMoqIko (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 02 Sep 2014 07:08:18 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s82E8HCg000354 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Tue, 2 Sep 2014 10:08:17 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s82E8GsA008525 for ; Tue, 2 Sep 2014 10:08:16 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id AFCEF12577D; Tue, 2 Sep 2014 10:08:15 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH v2 1/2] xfs: add debug sysfs attribute set Date: Tue, 2 Sep 2014 10:08:14 -0400 X-ASG-Orig-Subj: [PATCH v2 1/2] xfs: add debug sysfs attribute set Message-Id: <1409666895-49799-2-git-send-email-bfoster@redhat.com> In-Reply-To: <1409666895-49799-1-git-send-email-bfoster@redhat.com> References: <1409666895-49799-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409666897 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Create a top-level debug directory for global debug sysfs attributes. This directory is added and removed on XFS module initialization and removal respectively for DEBUG mode kernels only. It typically resides at /sys/fs/xfs/debug. It is located at the top level of the xfs sysfs hierarchy as attributes might define global behavior or behavior that must be configured before an xfs mount is available (e.g., log recovery behavior). Define the global debug kobject that represents the debug sysfs directory and add generic attribute show/store helpers to support future attributes. No debug attributes are exported as of yet. Signed-off-by: Brian Foster --- fs/xfs/xfs_super.c | 23 +++++++++++++++++++++-- fs/xfs/xfs_sysfs.c | 43 +++++++++++++++++++++++++++++++++++++++++++ fs/xfs/xfs_sysfs.h | 1 + 3 files changed, 65 insertions(+), 2 deletions(-) diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index b194652..919a64c 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -47,6 +47,7 @@ #include "xfs_dinode.h" #include "xfs_filestream.h" #include "xfs_quota.h" +#include "xfs_sysfs.h" #include #include @@ -61,7 +62,11 @@ static const struct super_operations xfs_super_operations; static kmem_zone_t *xfs_ioend_zone; mempool_t *xfs_ioend_pool; -struct kset *xfs_kset; + +struct kset *xfs_kset; /* top-level xfs sysfs dir */ +#ifdef DEBUG +static struct xfs_kobj xfs_dbg_kobj; /* global debug sysfs attrs */ +#endif #define MNTOPT_LOGBUFS "logbufs" /* number of XFS log buffers */ #define MNTOPT_LOGBSIZE "logbsize" /* size of XFS log buffers */ @@ -1768,9 +1773,16 @@ init_xfs_fs(void) goto out_sysctl_unregister;; } - error = xfs_qm_init(); +#ifdef DEBUG + xfs_dbg_kobj.kobject.kset = xfs_kset; + error = xfs_sysfs_init(&xfs_dbg_kobj, &xfs_dbg_ktype, NULL, "debug"); if (error) goto out_kset_unregister; +#endif + + error = xfs_qm_init(); + if (error) + goto out_remove_kobj; error = register_filesystem(&xfs_fs_type); if (error) @@ -1779,7 +1791,11 @@ init_xfs_fs(void) out_qm_exit: xfs_qm_exit(); + out_remove_kobj: +#ifdef DEBUG + xfs_sysfs_del(&xfs_dbg_kobj); out_kset_unregister: +#endif kset_unregister(xfs_kset); out_sysctl_unregister: xfs_sysctl_unregister(); @@ -1802,6 +1818,9 @@ exit_xfs_fs(void) { xfs_qm_exit(); unregister_filesystem(&xfs_fs_type); +#ifdef DEBUG + xfs_sysfs_del(&xfs_dbg_kobj); +#endif kset_unregister(xfs_kset); xfs_sysctl_unregister(); xfs_cleanup_procfs(); diff --git a/fs/xfs/xfs_sysfs.c b/fs/xfs/xfs_sysfs.c index 9835139..32ddf0c 100644 --- a/fs/xfs/xfs_sysfs.c +++ b/fs/xfs/xfs_sysfs.c @@ -51,6 +51,49 @@ struct kobj_type xfs_mp_ktype = { .release = xfs_sysfs_release, }; +#ifdef DEBUG +/* debug */ + +static struct attribute *xfs_dbg_attrs[] = { + NULL, +}; + +STATIC ssize_t +xfs_dbg_show( + struct kobject *kobject, + struct attribute *attr, + char *buf) +{ + struct xfs_sysfs_attr *xfs_attr = to_attr(attr); + + return xfs_attr->show ? xfs_attr->show(buf, NULL) : 0; +} + +STATIC ssize_t +xfs_dbg_store( + struct kobject *kobject, + struct attribute *attr, + const char *buf, + size_t count) +{ + struct xfs_sysfs_attr *xfs_attr = to_attr(attr); + + return xfs_attr->store ? xfs_attr->store(buf, count, NULL) : 0; +} + +static struct sysfs_ops xfs_dbg_ops = { + .show = xfs_dbg_show, + .store = xfs_dbg_store, +}; + +struct kobj_type xfs_dbg_ktype = { + .release = xfs_sysfs_release, + .sysfs_ops = &xfs_dbg_ops, + .default_attrs = xfs_dbg_attrs, +}; + +#endif /* DEBUG */ + /* xlog */ STATIC ssize_t diff --git a/fs/xfs/xfs_sysfs.h b/fs/xfs/xfs_sysfs.h index 54a2091..240eee3 100644 --- a/fs/xfs/xfs_sysfs.h +++ b/fs/xfs/xfs_sysfs.h @@ -20,6 +20,7 @@ #define __XFS_SYSFS_H__ extern struct kobj_type xfs_mp_ktype; /* xfs_mount */ +extern struct kobj_type xfs_dbg_ktype; /* debug */ extern struct kobj_type xfs_log_ktype; /* xlog */ static inline struct xfs_kobj * -- 1.8.3.1 From bfoster@redhat.com Tue Sep 2 09:08:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 55BAD7F5A for ; Tue, 2 Sep 2014 09:08:22 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 28EBD8F804C for ; Tue, 2 Sep 2014 07:08:18 -0700 (PDT) X-ASG-Debug-ID: 1409666897-04bdf010a16d7ce0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 4b3Vflei9BiN6Rsa (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 02 Sep 2014 07:08:17 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s82E8Hw5024860 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Tue, 2 Sep 2014 10:08:17 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s82E8GQS024865 for ; Tue, 2 Sep 2014 10:08:16 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id BE4F0125780; Tue, 2 Sep 2014 10:08:15 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH v2 2/2] xfs: export log_recovery_delay to delay mount time log recovery Date: Tue, 2 Sep 2014 10:08:15 -0400 X-ASG-Orig-Subj: [PATCH v2 2/2] xfs: export log_recovery_delay to delay mount time log recovery Message-Id: <1409666895-49799-3-git-send-email-bfoster@redhat.com> In-Reply-To: <1409666895-49799-1-git-send-email-bfoster@redhat.com> References: <1409666895-49799-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409666897 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 XFS log recovery has been discovered to have race conditions with buffers when I/O errors occur. External tools are available to simulate I/O errors to XFS, but this alone is not sufficient for testing log recovery. XFS unconditionally resets the inactive region of the log prior to log recovery to avoid confusion over processing any partially written log records that might have been written before an unclean shutdown. Therefore, unconditional write I/O failures at mount time are caught by the reset sequence rather than log recovery and hinder the ability to test the latter. The device-mapper dm-flakey module uses an up/down timer to define a cycle for when to fail I/Os. Create a pre log recovery delay tunable that can be used to coordinate XFS log recovery with I/O errors simulated by dm-flakey. This facilitates coordination in userspace that allows the reset of stale log blocks to succeed and writes due to log recovery to fail. For example, define a dm-flakey instance with an uptime long enough to allow log reset to succeed and a log recovery delay long enough to allow the dm-flakey uptime to expire. The 'log_recovery_delay' sysfs tunable is exported under /sys/fs/xfs/debug and is only enabled for kernels compiled in XFS debug mode. The value is exported in units of seconds and allows for a delay of up to 60 seconds. Note that this is for XFS debug and test instrumentation purposes only and should not be used by applications. No delay is enabled by default. Signed-off-by: Brian Foster --- fs/xfs/xfs_globals.c | 4 ++++ fs/xfs/xfs_log_recover.c | 12 ++++++++++++ fs/xfs/xfs_sysctl.h | 5 +++++ fs/xfs/xfs_sysfs.c | 31 +++++++++++++++++++++++++++++++ 4 files changed, 52 insertions(+) diff --git a/fs/xfs/xfs_globals.c b/fs/xfs/xfs_globals.c index 5399ef2..4d41b24 100644 --- a/fs/xfs/xfs_globals.c +++ b/fs/xfs/xfs_globals.c @@ -43,3 +43,7 @@ xfs_param_t xfs_params = { .fstrm_timer = { 1, 30*100, 3600*100}, .eofb_timer = { 1, 300, 3600*24}, }; + +struct xfs_globals xfs_globals = { + .log_recovery_delay = 0, /* no delay by default */ +}; diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 1fd5787..176c4b3 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -4509,6 +4509,18 @@ xlog_recover( return -EINVAL; } + /* + * Delay log recovery if the debug hook is set. This is debug + * instrumention to coordinate simulation of I/O failures with + * log recovery. + */ + if (xfs_globals.log_recovery_delay) { + xfs_notice(log->l_mp, + "Delaying log recovery for %d seconds.", + xfs_globals.log_recovery_delay); + msleep(xfs_globals.log_recovery_delay * 1000); + } + xfs_notice(log->l_mp, "Starting recovery (logdev: %s)", log->l_mp->m_logname ? log->l_mp->m_logname : "internal"); diff --git a/fs/xfs/xfs_sysctl.h b/fs/xfs/xfs_sysctl.h index bd8e157..ffef453 100644 --- a/fs/xfs/xfs_sysctl.h +++ b/fs/xfs/xfs_sysctl.h @@ -92,6 +92,11 @@ enum { extern xfs_param_t xfs_params; +struct xfs_globals { + int log_recovery_delay; /* log recovery delay (secs) */ +}; +extern struct xfs_globals xfs_globals; + #ifdef CONFIG_SYSCTL extern int xfs_sysctl_register(void); extern void xfs_sysctl_unregister(void); diff --git a/fs/xfs/xfs_sysfs.c b/fs/xfs/xfs_sysfs.c index 32ddf0c..aa03670 100644 --- a/fs/xfs/xfs_sysfs.c +++ b/fs/xfs/xfs_sysfs.c @@ -54,7 +54,38 @@ struct kobj_type xfs_mp_ktype = { #ifdef DEBUG /* debug */ +STATIC ssize_t +log_recovery_delay_store( + const char *buf, + size_t count, + void *data) +{ + int ret; + int val; + + ret = kstrtoint(buf, 0, &val); + if (ret) + return ret; + + if (val < 0 || val > 60) + return -EINVAL; + + xfs_globals.log_recovery_delay = val; + + return count; +} + +STATIC ssize_t +log_recovery_delay_show( + char *buf, + void *data) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", xfs_globals.log_recovery_delay); +} +XFS_SYSFS_ATTR_RW(log_recovery_delay); + static struct attribute *xfs_dbg_attrs[] = { + ATTR_LIST(log_recovery_delay), NULL, }; -- 1.8.3.1 From bfoster@redhat.com Tue Sep 2 09:08:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BDCD47F5A for ; Tue, 2 Sep 2014 09:08:22 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 5D426AC004 for ; Tue, 2 Sep 2014 07:08:19 -0700 (PDT) X-ASG-Debug-ID: 1409666897-04cb6c54fe7386b0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 3GprteEyIBxb6u9z (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 02 Sep 2014 07:08:18 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s82E8GCj027856 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Tue, 2 Sep 2014 10:08:17 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s82E8GRX001634 for ; Tue, 2 Sep 2014 10:08:16 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id A52A612577F; Tue, 2 Sep 2014 10:08:15 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH v2 0/2] xfs log recovery delay instrumentation Date: Tue, 2 Sep 2014 10:08:13 -0400 X-ASG-Orig-Subj: [PATCH v2 0/2] xfs log recovery delay instrumentation Message-Id: <1409666895-49799-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409666897 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Here's v2 of the log recovery delay instrumentation set. v1 is available here: http://oss.sgi.com/archives/xfs/2014-08/msg00276.html After a brief conversation with Dave, we thought it best to tie in this functionality with DEBUG mode to express/ensure that these attributes are for debugging/hacking purposes only. Everything else should be equivalent to v1. Brian v2: - Enable /sys/fs/xfs/debug for DEBUG mode kernels only. v1: http://oss.sgi.com/archives/xfs/2014-08/msg00276.html Brian Foster (2): xfs: add debug sysfs attribute set xfs: export log_recovery_delay to delay mount time log recovery fs/xfs/xfs_globals.c | 4 +++ fs/xfs/xfs_log_recover.c | 12 ++++++++ fs/xfs/xfs_super.c | 23 +++++++++++++-- fs/xfs/xfs_sysctl.h | 5 ++++ fs/xfs/xfs_sysfs.c | 74 ++++++++++++++++++++++++++++++++++++++++++++++++ fs/xfs/xfs_sysfs.h | 1 + 6 files changed, 117 insertions(+), 2 deletions(-) -- 1.8.3.1 From bfoster@redhat.com Tue Sep 2 09:22:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 494377F59 for ; Tue, 2 Sep 2014 09:22:45 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 355C28F8040 for ; Tue, 2 Sep 2014 07:22:44 -0700 (PDT) X-ASG-Debug-ID: 1409667763-04cbb054859c5020001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id jMYotLnvPnUkBdUM (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 02 Sep 2014 07:22:44 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s82EMhol029010 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 2 Sep 2014 10:22:43 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s82EMgj7010153; Tue, 2 Sep 2014 10:22:43 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id F350212577D; Tue, 2 Sep 2014 10:22:41 -0400 (EDT) From: Brian Foster To: fstests@vger.kernel.org Cc: xfs@oss.sgi.com Subject: [PATCH 1/2] xfstests/common: don't assume sysfs attrs all reside under test dev Date: Tue, 2 Sep 2014 10:22:40 -0400 X-ASG-Orig-Subj: [PATCH 1/2] xfstests/common: don't assume sysfs attrs all reside under test dev Message-Id: <1409667761-50248-2-git-send-email-bfoster@redhat.com> In-Reply-To: <1409667761-50248-1-git-send-email-bfoster@redhat.com> References: <1409667761-50248-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409667764 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 _require_xfs_sysfs() currently assumes that all sysfs attributes reside under a device-specific subdirectory in the XFS sysfs hierarchy. It is hardcoded to use the TEST_DEV mount and expect the relative attribute path as a parameter. Not all sysfs attributes are associated with specific devices or mount points, however. Remove the hardcoded device name part of the attribute path from _require_xfs_sysfs() and let the caller construct the relative path based on the sysfs XFS root directory. Signed-off-by: Brian Foster --- common/rc | 3 +-- tests/xfs/011 | 2 +- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/common/rc b/common/rc index 16da898..01f573e 100644 --- a/common/rc +++ b/common/rc @@ -1224,13 +1224,12 @@ _require_xfs_sysfs() { attr=$1 sysfsdir=/sys/fs/xfs - testdev=`_short_dev $TEST_DEV` if [ ! -e $sysfsdir ]; then _notrun "no kernel support for XFS sysfs attributes" fi - if [ ! -z $1 ] && [ ! -e $sysfsdir/$testdev/$attr ]; then + if [ ! -z $1 ] && [ ! -e $sysfsdir/$attr ]; then _notrun "sysfs attribute '$attr' is not supported" fi } diff --git a/tests/xfs/011 b/tests/xfs/011 index 658a822..197752c 100755 --- a/tests/xfs/011 +++ b/tests/xfs/011 @@ -85,7 +85,7 @@ _supported_os Linux _require_scratch _require_freeze -_require_xfs_sysfs log +_require_xfs_sysfs $(_short_dev $TEST_DEV)/log rm -f $seqres.full -- 1.8.3.1 From bfoster@redhat.com Tue Sep 2 09:22:47 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 9BF1A7F62 for ; Tue, 2 Sep 2014 09:22:47 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 15C24AC003 for ; Tue, 2 Sep 2014 07:22:47 -0700 (PDT) X-ASG-Debug-ID: 1409667765-04cb6c54fe738eb0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id D5eZzs7IAQDU43JH (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 02 Sep 2014 07:22:46 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s82EMhN7030989 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 2 Sep 2014 10:22:44 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s82EMhik017624; Tue, 2 Sep 2014 10:22:43 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 0E165125780; Tue, 2 Sep 2014 10:22:41 -0400 (EDT) From: Brian Foster To: fstests@vger.kernel.org Cc: xfs@oss.sgi.com Subject: [PATCH 2/2] xfs/051: test buffer use after free race on I/O failure in XFS log recovery Date: Tue, 2 Sep 2014 10:22:41 -0400 X-ASG-Orig-Subj: [PATCH 2/2] xfs/051: test buffer use after free race on I/O failure in XFS log recovery Message-Id: <1409667761-50248-3-git-send-email-bfoster@redhat.com> In-Reply-To: <1409667761-50248-1-git-send-email-bfoster@redhat.com> References: <1409667761-50248-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409667765 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 A buffer use after free race was discovered in the XFS log recovery codepath if I/O failures occur during recovery. The I/O submission path can abort the mount and release the only reference held on some buffers before I/O completion processing (e.g., async workqueue processing) might have completed. Badness ensues if the I/O completion path subsequently attempts to access said buffers. The test manufactures the race by forcing all writes to fail (via dm-flakey) after a fixed period of time. A delay is inserted into the mount codepath to synchronize write failures with log recovery. Credit for discovery of the race and definition of the reproducible test case goes to Alex Lyakas. Signed-off-by: Brian Foster Reported-by: Alex Lyakas --- tests/xfs/051 | 95 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/051.out | 2 ++ tests/xfs/group | 1 + 3 files changed, 98 insertions(+) create mode 100755 tests/xfs/051 create mode 100644 tests/xfs/051.out diff --git a/tests/xfs/051 b/tests/xfs/051 new file mode 100755 index 0000000..a84746b --- /dev/null +++ b/tests/xfs/051 @@ -0,0 +1,95 @@ +#! /bin/bash +# FS QA Test No. 051 +# +# Simulate a buffer use after free race in XFS log recovery. The race triggers +# on I/O failures during log recovery. Note that this test is dangerous as it +# causes BUG() errors or a panic. +# +#----------------------------------------------------------------------- +# Copyright (c) 2013 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* + killall -9 $FSSTRESS_PROG > /dev/null 2>&1 + _scratch_unmount > /dev/null 2>&1 +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/dmflakey + +# Modify as appropriate. +_supported_fs xfs +_supported_os Linux + +_require_scratch +_require_dm_flakey +_require_xfs_sysfs debug/log_recovery_delay + +echo "Silence is golden." + +_scratch_mkfs_xfs >/dev/null 2>&1 +_scratch_mount + +# Start a workload and shutdown the fs. The subsequent mount will require log +# recovery. +$FSSTRESS_PROG -n 9999 -p 2 -w -d $SCRATCH_MNT > /dev/null 2>&1 & +sleep 5 +src/godown -f $SCRATCH_MNT +killall -q $FSSTRESS_PROG +wait +_scratch_unmount + +# Initialize a dm-flakey device that will pass I/Os for 5s and fail thereafter. +_init_flakey +BLK_DEV_SIZE=`blockdev --getsz $SCRATCH_DEV` +FLAKEY_TABLE="0 $BLK_DEV_SIZE flakey $SCRATCH_DEV 0 5 180" +_load_flakey_table $FLAKEY_ALLOW_WRITES + +# Set a 10s log recovery delay and mount the flakey device. This should allow +# initial writes to proceed (e.g., stale log block reset) and then let the +# flakey uptime timer expire such that I/Os will fail by the time log recovery +# starts. +echo 10 > /sys/fs/xfs/debug/log_recovery_delay + +# The mount should fail due to dm-flakey. Note that this is dangerous on kernels +# without the xfs_buf log recovery race fixes. +_mount_flakey > /dev/null 2>&1 + +echo 0 > /sys/fs/xfs/debug/log_recovery_delay + +_cleanup_flakey + +# replay the log +_scratch_mount +_scratch_unmount + +# success, all done +status=0 +exit diff --git a/tests/xfs/051.out b/tests/xfs/051.out new file mode 100644 index 0000000..5180bc4 --- /dev/null +++ b/tests/xfs/051.out @@ -0,0 +1,2 @@ +QA output created by 051 +Silence is golden. diff --git a/tests/xfs/group b/tests/xfs/group index 4d35df5..9784dea 100644 --- a/tests/xfs/group +++ b/tests/xfs/group @@ -47,6 +47,7 @@ 048 other auto quick 049 rw auto quick 050 quota auto quick +051 dangerous 052 quota db auto quick 054 quota auto quick 055 dump ioctl remote tape -- 1.8.3.1 From bfoster@redhat.com Tue Sep 2 09:22:48 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id F17CA7F62 for ; Tue, 2 Sep 2014 09:22:48 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id D2987304039 for ; Tue, 2 Sep 2014 07:22:45 -0700 (PDT) X-ASG-Debug-ID: 1409667764-04cbb054879c5030001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id bTAHBgOq5Qi9QJcB (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 02 Sep 2014 07:22:44 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s82EMhdL002270 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 2 Sep 2014 10:22:43 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s82EMgIi006107; Tue, 2 Sep 2014 10:22:43 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id E296312577F; Tue, 2 Sep 2014 10:22:41 -0400 (EDT) From: Brian Foster To: fstests@vger.kernel.org Cc: xfs@oss.sgi.com Subject: [PATCH 0/2] xfs buf I/O error race test Date: Tue, 2 Sep 2014 10:22:39 -0400 X-ASG-Orig-Subj: [PATCH 0/2] xfs buf I/O error race test Message-Id: <1409667761-50248-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409667764 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Hi all, Here's a complete test for the XFS buf I/O error race problem reported by Alex. An incomplete rfc of this test was previously posted here: http://oss.sgi.com/archives/xfs/2014-08/msg00261.html This version utilizes the recently posted log recovery delay mechanism. As such, this test only runs on kernels compiled with XFS debug support. The first patch updates the generic require sysfs helper to support global (i.e., non-device specific) sysfs attributes. Brian v1: - Use the log recovery delay mechanism to coordinate I/O failures with log recovery. rfc: http://oss.sgi.com/archives/xfs/2014-08/msg00261.html Brian Foster (2): xfstests/common: don't assume sysfs attrs all reside under test dev xfs/051: test buffer use after free race on I/O failure in XFS log recovery common/rc | 3 +- tests/xfs/011 | 2 +- tests/xfs/051 | 95 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/051.out | 2 ++ tests/xfs/group | 1 + 5 files changed, 100 insertions(+), 3 deletions(-) create mode 100755 tests/xfs/051 create mode 100644 tests/xfs/051.out -- 1.8.3.1 From stan@hardwarefreak.com Tue Sep 2 12:15:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 951A17F53 for ; Tue, 2 Sep 2014 12:15:11 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 32B14AC003 for ; Tue, 2 Sep 2014 10:15:07 -0700 (PDT) X-ASG-Debug-ID: 1409678106-04cb6c54fd741290001-NocioJ Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id fV9YsJOgMCmCGKtG for ; Tue, 02 Sep 2014 10:15:06 -0700 (PDT) X-Barracuda-Envelope-From: stan@hardwarefreak.com X-Barracuda-Apparent-Source-IP: 65.41.216.221 X-Barracuda-User-Whitelist: xfs@oss.sgi.com Received: from [134.64.128.151] (unknown [192.65.45.20]) by greer.hardwarefreak.com (Postfix) with ESMTPA id CDE116C149; Tue, 2 Sep 2014 12:15:05 -0500 (CDT) Message-ID: <5405FB19.2020208@hardwarefreak.com> Date: Tue, 02 Sep 2014 12:15:05 -0500 From: stan hoeppner User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Icedove/24.7.0 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com Subject: Re: storage, libaio, or XFS problem? 3.4.26 References: <20140826075345.GJ20518@dastard> <8c29baf987467a84f0b7c1d09c863662@localhost> <20140828003226.GO20518@dastard> <7f9e5aef187b44e899077467aeb0809d@localhost> <20140828230817.GU20518@dastard> <2d2ce7bb38c00a7d35f4a324f6a36cbb@localhost> <20140829235538.GF20518@dastard> <20140831235749.GH20518@dastard> <5403E9B9.7040608@hardwarefreak.com> <20140901234529.GI20518@dastard> X-ASG-Orig-Subj: Re: storage, libaio, or XFS problem? 3.4.26 In-Reply-To: <20140901234529.GI20518@dastard> 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: 1409678106 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 09/01/2014 06:45 PM, Dave Chinner wrote: > On Sun, Aug 31, 2014 at 10:36:25PM -0500, stan hoeppner wrote: >> On 08/31/2014 06:57 PM, Dave Chinner wrote: >>> On Fri, Aug 29, 2014 at 09:55:53PM -0500, Stan Hoeppner wrote: >>>> Have you played with bcache yet? >>> >>> Enough to scare me. So many ways for things to go wrong, no easy way >>> to recover when things go wrong. And that's before I even get to >>> performance warts, like having systems stall completely because >>> there's tens or hundreds of GB of 4k random writes that have to be >>> flushed to slow SATA RAID6 in the cache.... >> >> Yikes. I hadn't yet heard such opinions expressed. By go wrong I >> assume you mean the btrees or cached sector data getting broken, corrupted? > > bcache is a complex filesystem hidden inside a block device. If > bcache goes AWOL, so does the all the data on your block device. > Need I say more? So it's no different in that regard than the black box implementations such as LSI's CacheCade and various SAN vendor SSD caching implementations. Or are you saying the bcache code complexity is so much greater that failure is more likely that the vendor implementations? >>> PS: can you wrap your text at 68 or 72 columns so quoted text >>> doesn't overflow 80 columns and get randomly wrapped and messed up? >> >> This email should be. Lemme see what I can do with the others. The >> lovely Cisco VPN client I must use kills routing to my local subnet, so >> Icedovce can't connect to my IMAP server when the VPN is active. The >> test hardness app requires a shell unfortunately so I have to keep the >> tunnel open all the time, as the test runs are 40+ hours each. My last >> test just crashed a bit ago so I can use Icedove for this reply. > > screen is your friend when it comes to keeping remote shells > active as the network comes and goes. VPN drops out, just bring it > back up when you need it and reconnect to the remote screen instance > and it's like you never left.... Thanks for this tip. I'd heard of screen before but never used it. I will say the man page is a bit intimidating for such an apparently simple tool... Stan From bfoster@redhat.com Tue Sep 2 14:16:30 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id AA72D7F4E for ; Tue, 2 Sep 2014 14:16:30 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 56B72AC004 for ; Tue, 2 Sep 2014 12:16:27 -0700 (PDT) X-ASG-Debug-ID: 1409685383-04bdf010a16e5780001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 7rbufw64z0TzcAYm (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 02 Sep 2014 12:16:23 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s82JGM6b018512 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Tue, 2 Sep 2014 15:16:22 -0400 Received: from laptop.bfoster (vpn-51-136.rdu2.redhat.com [10.10.51.136]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s82JGKZF013899 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 2 Sep 2014 15:16:22 -0400 Date: Tue, 2 Sep 2014 15:16:20 -0400 From: Brian Foster To: xfs@oss.sgi.com Subject: Re: [RFC PATCH 0/4] clean up collapse range and handle post-eof delalloc Message-ID: <20140902191620.GA5304@laptop.bfoster> X-ASG-Orig-Subj: Re: [RFC PATCH 0/4] clean up collapse range and handle post-eof delalloc References: <1409344178-44817-1-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409344178-44817-1-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409685383 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Aug 29, 2014 at 04:29:34PM -0400, Brian Foster wrote: > Here's a drop of what I'm testing over the weekend. It passes some quick > tests, but only lightly tested so far. > fsx has been running for over 3 days without a failure and I've kicked off a parallel fsstress today that so far hasn't caused any problems. Given that, I think the patches here help reduce the likelihood of errors from collapse. > My biggest question at this point is whether there is any risk to the > shift of the post-eof extent if the subsequent truncate happens to fail. > If it's not worth dealing with that, we could just drop patch 3 and > leave the eofblocks trim permanently. > That said, a test to skip the post-collapse truncate confirms that the behavior of patch 3 is potentially problematic in the event of failure. E.g., there is no behavior analogous to the zeroing of prealloc space for extending truncates. I think the right thing to do here might be for the collapse to writeback and invalidate the range following the space that was freed to EOF and to retain the eofblocks trim. Brian > In fact, it might even be a good idea to go back to the original > [start,-1] writeback in collapse range given that the free file space > helper could change at some point to only write and punch out the range > being freed... and then we're left shifting a bunch of extents after the > freed range that could have dirty data in pagecache, which sounds bad. > Thoughts? > > Brian > > Brian Foster (4): > xfs: track collapse via file offset rather than extent index > xfs: refactor xfs_bmap_shift_extents() into multiple functions > xfs: allow collapse to handle delalloc extents > xfs: remove file writeback and eofblocks trim from collapse range > > fs/xfs/libxfs/xfs_bmap.c | 302 ++++++++++++++++++++++++++++++++--------------- > fs/xfs/libxfs/xfs_bmap.h | 7 +- > fs/xfs/xfs_bmap_util.c | 32 +---- > 3 files changed, 214 insertions(+), 127 deletions(-) > > -- > 1.8.3.1 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From david@fromorbit.com Tue Sep 2 17:02:36 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 66EC67F52 for ; Tue, 2 Sep 2014 17:02:36 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 13512AC006 for ; Tue, 2 Sep 2014 15:02:32 -0700 (PDT) X-ASG-Debug-ID: 1409695350-04bdf010a06ea920001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id mcVlGR21r4ER0eRN for ; Tue, 02 Sep 2014 15:02:31 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AowgAHA9BlR5LDJ8/2dsb2JhbABagw1TV4IsrQ8BAQEBBphlgVuFaQEDAQEBgRIXd4QEAQU6HCMQCAMYCSUPBSUDIROIQQ69CQEXGIVkh0GCEAeETAWFBQKQWIZ8lR+DcysvAYJOAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 03 Sep 2014 07:32:29 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XOw9Y-0008Tk-9W; Wed, 03 Sep 2014 08:02:16 +1000 Date: Wed, 3 Sep 2014 08:02:16 +1000 From: Dave Chinner To: Alex Lyakas Cc: Brian Foster , xfs@oss.sgi.com Subject: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error Message-ID: <20140902220216.GJ20518@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error References: <1408648692-15957-1-git-send-email-bfoster@redhat.com> <20140825142025.GA10135@bfoster.bfoster> <20140831210507.GA11913@bfoster.bfoster> <3476A2CBDE694DC6BD06DBDD15165151@alyakaslap> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3476A2CBDE694DC6BD06DBDD15165151@alyakaslap> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1409695350 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9109 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words On Tue, Sep 02, 2014 at 12:51:35PM +0300, Alex Lyakas wrote: > Hi Brian, Dave, > I tested this patch on 3.8.13 kernel with the scenario I described > in http://oss.sgi.com/pipermail/xfs/2014-August/037637.html, but I > still see the issue. > I placed the metadump at https://drive.google.com/file/d/0ByBy89zr3kJNV2UxMERNTkE4aHM/edit?usp=sharing > > During log recovery, 3 IO errors are encountered: > [ 340.381199] XFS (dm-0): Mounting Filesystem > [ 340.439897] XFS (dm-0): Sleep 10s before xlog_do_recover > [ 350.440143] XFS (dm-0): Starting recovery (logdev: internal) > [ 351.584647] XFS (dm-0): metadata I/O error: block 0x1 > ("xlog_recover_iodone") error 28 numblks 1 > [ 351.584660] XFS (dm-0): metadata I/O error: block 0x40 > ("xlog_recover_iodone") error 28 numblks 16 > [ 351.584665] XFS (dm-0): xfs_do_force_shutdown(0x1) called from > line 377 of file > /mnt/work/alex/zadara-btrfs/fs/xfs/xfs_log_recover.c. Return > address = 0xffffffffa0372728 > [ 351.584969] XFS (dm-0): I/O Error Detected. Shutting down filesystem > [ 351.584970] XFS (dm-0): Please umount the filesystem and rectify > the problem(s) > [ 351.585047] XFS (dm-0): metadata I/O error: block 0x1e00040 > ("xlog_recover_iodone") error 28 numblks 16 > [ 351.585050] XFS (dm-0): xfs_do_force_shutdown(0x1) called from > line 377 of file > /mnt/work/alex/zadara-btrfs/fs/xfs/xfs_log_recover.c. Return > address = 0xffffffffa0372728 > [ 351.585068] XFS (dm-0): log mount/recovery failed: error 28 > [ 351.585332] XFS (dm-0): log mount failed > > Two IO error callbacks are handled before XFS is unmounted, but the > last one crashes with stack[1]. > > Do I need some or all of the 9 patches that Dave posted? (They do > not apply to my kernel, so I need to apply them by hand). No, I suspect that there are other problems that have been fixed since 3.8 that you are missing. e.g. 9c23ecc xfs: unmount does not wait for shutdown during unmount THere's bound to be others, so you're really going to need to look at the differences between 3.8 and a current mainline to determine what other patches you are going to need... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Tue Sep 2 17:20:00 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 890A37F55 for ; Tue, 2 Sep 2014 17:20:00 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 7660A304066 for ; Tue, 2 Sep 2014 15:19:57 -0700 (PDT) X-ASG-Debug-ID: 1409696392-04cb6c54ff74d560001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id igUdXgNIV7wivOyJ for ; Tue, 02 Sep 2014 15:19:52 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AoEgACNCBlR5LDJ8/2dsb2JhbABagw2BKoIsrQ8BAQEBBppAhWkBAwEBAYESF3eEAwEBBAE6HCMQCAMYCSUPBSUDIROIOge9HwEXGIVkiQhJB4RMBZoLglCBNpNpgW8WgW4rL4EHAR4GgSMBAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 03 Sep 2014 07:49:29 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XOwPz-00005R-8o; Wed, 03 Sep 2014 08:19:15 +1000 Date: Wed, 3 Sep 2014 08:19:15 +1000 From: Dave Chinner To: stan hoeppner Cc: xfs@oss.sgi.com Subject: Re: storage, libaio, or XFS problem? 3.4.26 Message-ID: <20140902221915.GK20518@dastard> X-ASG-Orig-Subj: Re: storage, libaio, or XFS problem? 3.4.26 References: <20140828003226.GO20518@dastard> <7f9e5aef187b44e899077467aeb0809d@localhost> <20140828230817.GU20518@dastard> <2d2ce7bb38c00a7d35f4a324f6a36cbb@localhost> <20140829235538.GF20518@dastard> <20140831235749.GH20518@dastard> <5403E9B9.7040608@hardwarefreak.com> <20140901234529.GI20518@dastard> <5405FB19.2020208@hardwarefreak.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5405FB19.2020208@hardwarefreak.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1409696392 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9109 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Sep 02, 2014 at 12:15:05PM -0500, stan hoeppner wrote: > On 09/01/2014 06:45 PM, Dave Chinner wrote: > > On Sun, Aug 31, 2014 at 10:36:25PM -0500, stan hoeppner wrote: > >> On 08/31/2014 06:57 PM, Dave Chinner wrote: > >>> On Fri, Aug 29, 2014 at 09:55:53PM -0500, Stan Hoeppner wrote: > >>>> Have you played with bcache yet? > >>> > >>> Enough to scare me. So many ways for things to go wrong, no easy way > >>> to recover when things go wrong. And that's before I even get to > >>> performance warts, like having systems stall completely because > >>> there's tens or hundreds of GB of 4k random writes that have to be > >>> flushed to slow SATA RAID6 in the cache.... > >> > >> Yikes. I hadn't yet heard such opinions expressed. By go wrong I > >> assume you mean the btrees or cached sector data getting broken, corrupted? > > > > bcache is a complex filesystem hidden inside a block device. If > > bcache goes AWOL, so does the all the data on your block device. > > Need I say more? > > So it's no different in that regard than the black box implementations > such as LSI's CacheCade and various SAN vendor SSD caching > implementations. Or are you saying the bcache code complexity is so > much greater that failure is more likely that the vendor implementations? No, not the code complexity in particular. It's more that compared to vendor SSD caching implementations there's an awful lot less testing and validation, and people tend to use random, unreliable hardware for cache devices. It's great when it works, but the configuration and validation of correct behaviour in error conditions falls to the user... > > screen is your friend when it comes to keeping remote shells > > active as the network comes and goes. VPN drops out, just bring it > > back up when you need it and reconnect to the remote screen instance > > and it's like you never left.... > > Thanks for this tip. I'd heard of screen before but never used it. I > will say the man page is a bit intimidating for such an apparently > simple tool... Yeah, I use about 0.0001% of what screen can do. It could lose most of it's functionality and I wouldn't notice or care. tmux is another option for this functionality, but I've never used it because I found out about screen first... Cheers, Dave. -- Dave Chinner david@fromorbit.com From clarifylzx@gmail.com Tue Sep 2 20:49:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 0E5107F57 for ; Tue, 2 Sep 2014 20:49:37 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 9FC2AAC002 for ; Tue, 2 Sep 2014 18:49:33 -0700 (PDT) X-ASG-Debug-ID: 1409708969-04bdf010976f5980001-NocioJ Received: from mail-lb0-f194.google.com (mail-lb0-f194.google.com [209.85.217.194]) by cuda.sgi.com with ESMTP id LnvkchBPVjdK2FuI (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Tue, 02 Sep 2014 18:49:30 -0700 (PDT) X-Barracuda-Envelope-From: clarifylzx@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.217.194 X-Barracuda-IPDD: Level1 [gmail.com/209.85.217.194] Received: by mail-lb0-f194.google.com with SMTP id p9so3205944lbv.9 for ; Tue, 02 Sep 2014 18:49:28 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.217.194] X-Barracuda-IPDD: Level1 [gmail.com/209.85.217.194] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=AKuQ7wU5hphnuVFMMYcT5ag/a0zFkSxyqjq/ZOf5Wt4=; b=pDurJ5MhZ2eKqG1X/8+DCwWr2LrGVNNxvJDrmCc4IR75SE61BqC1cSSJeDZcOPXBgf 7LyKzpoKPrfbUY2l/yuDYp6JpnpbKCsUkhjvCg49UDxuFAY3D/KU9dkUU+h5CSorJgLD kmRP9iiUQ+3O44yldwkBDHKy0btiN7ErTunqNONEJB6CWltvoip53z55An8vdZ7N2kdn KTh15hBMRFKvZULNwbd7lpfSnrukmQd7saW3XSk597Shd/VfRYAMZDepalolJWB7KuY9 FWB3hXjXmgahYqrPHJLTd/pYZfz/fFctI0sSLeA/5EsaftkSGCKE6o7JtE7tJbzT6PEX DJJw== MIME-Version: 1.0 X-Received: by 10.152.170.228 with SMTP id ap4mr3315442lac.66.1409708968630; Tue, 02 Sep 2014 18:49:28 -0700 (PDT) Received: by 10.114.229.164 with HTTP; Tue, 2 Sep 2014 18:49:26 -0700 (PDT) Date: Wed, 3 Sep 2014 09:49:26 +0800 Message-ID: Subject: color box, display box, corrugated box, color card, blister card, color sleeve, hang tag, label From: Jinghao Printing - CHINA X-ASG-Orig-Subj: color box, display box, corrugated box, color card, blister card, color sleeve, hang tag, label To: undisclosed-recipients:; Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-lb0-f194.google.com[209.85.217.194] X-Barracuda-Start-Time: 1409708970 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9116 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Hi, this is David Wu from Shanghai, China. We are a printing company, we can print color box, corrugated box, label, hang tag etc. Please let me know if you need these. I will send you the website then. Best regards, David Wu From bo.li.liu@oracle.com Tue Sep 2 22:26:33 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 1DFCC7F57 for ; Tue, 2 Sep 2014 22:26:33 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id E377D8F8054 for ; Tue, 2 Sep 2014 20:26:32 -0700 (PDT) X-ASG-Debug-ID: 1409714787-04bdf0109a6fa8d0001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id 0EdKRISESCHcPIH8 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 02 Sep 2014 20:26:28 -0700 (PDT) X-Barracuda-Envelope-From: bo.li.liu@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from acsinet22.oracle.com (acsinet22.oracle.com [141.146.126.238]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id s833QQIj009281 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 3 Sep 2014 03:26:27 GMT Received: from userz7022.oracle.com (userz7022.oracle.com [156.151.31.86]) by acsinet22.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id s833QPUN026906 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 3 Sep 2014 03:26:26 GMT Received: from abhmp0016.oracle.com (abhmp0016.oracle.com [141.146.116.22]) by userz7022.oracle.com (8.14.5+Sun/8.14.4) with ESMTP id s833QOg4014937; Wed, 3 Sep 2014 03:26:25 GMT Received: from localhost.jp.oracle.com (/10.191.5.50) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 02 Sep 2014 20:26:24 -0700 From: Liu Bo To: xfs@oss.sgi.com Cc: linux-btrfs Subject: [PATCH] xfstests: remove check_scratch_fs in btrfs/012 Date: Wed, 3 Sep 2014 11:25:59 +0800 X-ASG-Orig-Subj: [PATCH] xfstests: remove check_scratch_fs in btrfs/012 Message-Id: <1409714759-9805-1-git-send-email-bo.li.liu@oracle.com> X-Mailer: git-send-email 1.8.1.4 X-Source-IP: acsinet22.oracle.com [141.146.126.238] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1409714788 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9119 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines From: Liu Bo btrfs/012 is a case to verify btrfs-convert feature, it converts an ext4 to btrfs firstly and do something, then rolls back to ext4. So at last we have a ext4 on the scratch device, but setting _require_scratch will force a btrfsck on a ext4 fs because $FSTYP here is btrfs, and it ends up with a failure report of _check_btrfs_filesystem. Now that we have deliberately check the final ext4 fs in btrfs/012, just do not set _require_scratch in this case. Signed-off-by: Liu Bo --- tests/btrfs/012 | 1 - 1 file changed, 1 deletion(-) diff --git a/tests/btrfs/012 b/tests/btrfs/012 index f7e5da5..12f6462 100755 --- a/tests/btrfs/012 +++ b/tests/btrfs/012 @@ -52,7 +52,6 @@ _cleanup() # Modify as appropriate. _supported_fs btrfs _supported_os Linux -_require_scratch BTRFS_CONVERT_PROG="`set_prog_path btrfs-convert`" MKFS_EXT4_PROG="`set_prog_path mkfs.ext4`" -- 1.8.1.4 From shudesmond2@outlook.com Wed Sep 3 11:23:48 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.3 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,HTML_MESSAGE,T_FREEMAIL_DOC_PDF autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 175407F37 for ; Wed, 3 Sep 2014 11:23:48 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 89023AC002 for ; Wed, 3 Sep 2014 09:23:47 -0700 (PDT) X-ASG-Debug-ID: 1409761421-04cb6c550077f540001-NocioJ Received: from COL004-OMC3S9.hotmail.com (col004-omc3s9.hotmail.com [65.55.34.147]) by cuda.sgi.com with ESMTP id dVoFrd5ZcX8Sz2Vr (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO) for ; Wed, 03 Sep 2014 09:23:42 -0700 (PDT) X-Barracuda-Envelope-From: shudesmond2@outlook.com X-Barracuda-Apparent-Source-IP: 65.55.34.147 Received: from COL125-W35 ([65.55.34.136]) by COL004-OMC3S9.hotmail.com with Microsoft SMTPSVC(7.5.7601.22701); Wed, 3 Sep 2014 09:23:41 -0700 X-TMN: [0e1L4Zto/5SZFsTzgTBWFR2VVTwkjkC1] X-Originating-Email: [shudesmond2@outlook.com] Message-ID: Content-Type: multipart/mixed; boundary="_253d505f-363b-4857-9c14-3a09b91662dd_" From: Desmond Shu Subject: Proposal Date: Wed, 3 Sep 2014 18:23:40 +0200 X-ASG-Orig-Subj: Proposal Importance: Normal MIME-Version: 1.0 X-OriginalArrivalTime: 03 Sep 2014 16:23:41.0079 (UTC) FILETIME=[6C757270:01CFC793] X-Barracuda-Connect: col004-omc3s9.hotmail.com[65.55.34.147] X-Barracuda-Start-Time: 1409761421 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 1.21 X-Barracuda-Spam-Status: No, SCORE=1.21 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE, MISSING_HEADERS, TO_CC_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9135 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 1.21 MISSING_HEADERS Missing To: header 0.00 HTML_MESSAGE BODY: HTML included in message 0.00 TO_CC_NONE No To: or Cc: header To: undisclosed-recipients:; --_253d505f-363b-4857-9c14-3a09b91662dd_ Content-Type: multipart/alternative; boundary="_a929280e-9726-40d2-b330-12199cee62f8_" --_a929280e-9726-40d2-b330-12199cee62f8_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Please go through the content of the attachment and get back to me for mor= e information.Thanks for your understanding=2CDesmond Shu = --_a929280e-9726-40d2-b330-12199cee62f8_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
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01:45:04 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 9567E8F8035 for ; Wed, 3 Sep 2014 23:45:01 -0700 (PDT) X-ASG-Debug-ID: 1409813098-04cbb05486a2d440001-NocioJ Received: from mailproxy1.vluchtelingenwerk.nl (mailproxy1.vluchtelingenwerk.nl [188.201.255.76]) by cuda.sgi.com with ESMTP id 88wDNzPDvpMUQjm1 for ; Wed, 03 Sep 2014 23:44:58 -0700 (PDT) X-Barracuda-Envelope-From: mertas@vluchtelingenwerk.nl X-Barracuda-Apparent-Source-IP: 188.201.255.76 Received: from mailstore1.vluchtelingenwerk.nl (mailstore1.vluchtelingenwerk.nl [172.16.0.16]) by mailstore1.vluchtelingenwerk.nl (Postfix) with ESMTP id ECF02EAC1B1; Thu, 4 Sep 2014 08:31:55 +0200 (CEST) Date: Thu, 4 Sep 2014 08:31:55 +0200 (CEST) From: "iPhone Company inc 2014 Award " Reply-To: "iphone2014win@qdwxs.com" Message-ID: <1507608386.1957781.1409812315471.JavaMail.root@vluchtelingenwerk.nl> Subject: FINAL NOTIFICATION OF YOUR WINNING PRIZE! MIME-Version: 1.0 X-ASG-Orig-Subj: FINAL NOTIFICATION OF YOUR WINNING PRIZE! Content-Type: multipart/mixed; boundary="----=_Part_1957777_1336190691.1409812315449" X-Mailer: Zimbra 7.2.3_GA_2872 (zclient/7.2.3_GA_2872) To: undisclosed-recipients:; X-Barracuda-Connect: mailproxy1.vluchtelingenwerk.nl[188.201.255.76] X-Barracuda-Start-Time: 1409813098 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 2.14 X-Barracuda-Spam-Status: No, SCORE=2.14 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MV0224, HTML_MESSAGE, SUBJ_ALL_CAPS, SUBJ_ALL_CAPS_2 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9159 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message 0.50 BSF_SC0_MV0224 FULL: Custom rule MV0224 0.01 SUBJ_ALL_CAPS Subject is all capitals 1.62 SUBJ_ALL_CAPS_2 SUBJ_ALL_CAPS_2 ------=_Part_1957777_1336190691.1409812315449 Content-Type: multipart/alternative; boundary="----=_Part_1957778_1120446958.1409812315449" ------=_Part_1957778_1120446958.1409812315449 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Greetings from iPhone company. Congratulations for been part of our 2014 lucky winner.Kindly open the attached form and follow the instruction immediately . Regards iPhone Admin. Director. Rai Walle ------=_Part_1957778_1120446958.1409812315449 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit
Greetings from iPhone company. Congratulations for been part of our 2014 lucky winner.Kindly open the attached form and follow the instruction immediately .


        Regards


iPhone Admin. Director.


        Rai Walle














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Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8702D7F54 for ; Thu, 4 Sep 2014 05:14:53 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 589B48F8040 for ; Thu, 4 Sep 2014 03:14:50 -0700 (PDT) X-ASG-Debug-ID: 1409825688-04bdf010a1743b40001-NocioJ Received: from mail-pd0-f169.google.com (mail-pd0-f169.google.com [209.85.192.169]) by cuda.sgi.com with ESMTP id sJGd8rQm1PKHWE5u (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Thu, 04 Sep 2014 03:14:49 -0700 (PDT) X-Barracuda-Envelope-From: felipemonteiro.carvalho@gmail.com X-Barracuda-RBL-Trusted-Forwarder: 209.85.192.169 Received: by mail-pd0-f169.google.com with SMTP id y10so3879071pdj.28 for ; Thu, 04 Sep 2014 03:14:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=YOF/0RDY68DMPG1mNbIDgRDfaZOXNCvwUI26sLbUuCg=; b=iCaqoD2dX/6z8ffvKBqQRaJJS4QOVP92kc/toxYXH3dMWbX7i1+WJY8Py8V2lWoLjA W1Uj9MPXrLOy4ufiWXb5yOqhaV8v1D0lEgttLeR7cTTVKVMb01rB7buBWIaZxL+30atX iLNlvCSmm2VFMGTb/ad/+2YxJqk6jGV/fcbEuGFgGyAQBPT8N7V8mBMHXpmmFJf0fShV elLeyBjTsHpIqL1M5VqG6EZv/uZiV/iORB7XZzMyaHlsEE+SDyYC2JKpaY95Q2cQOtzc BEQdYyOAJJsMDt+RPWYku/X2hGU313+Mllyclhk8v5/XUN8rop/EDi5OAjtAj+BdeFfK 8Y6A== X-Barracuda-BBL-IP: nil MIME-Version: 1.0 X-Received: by 10.66.197.132 with SMTP id iu4mr6926541pac.132.1409825679561; Thu, 04 Sep 2014 03:14:39 -0700 (PDT) Received: by 10.66.154.162 with HTTP; Thu, 4 Sep 2014 03:14:39 -0700 (PDT) In-Reply-To: References: Date: Thu, 4 Sep 2014 12:14:39 +0200 Message-ID: Subject: Re: Ghost items in the end of a dir listing From: Felipe Monteiro de Carvalho X-ASG-Orig-Subj: Re: Ghost items in the end of a dir listing To: xfs@oss.sgi.com Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-pd0-f169.google.com[209.85.192.169] X-Barracuda-Start-Time: 1409825689 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9163 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 Hello, No ideas about this? =( Any kind of tip would be really appreciated =) thanks, Felipe Monteiro de Carvalho On Wed, Aug 27, 2014 at 12:20 PM, Felipe Monteiro de Carvalho wrote: > Hello, > > I am writing a program that reads XFS partitions and I am having > trouble with some dir listings. In some directories in the block that > starts with XD2B there is first the list of all directory items, which > I read without problems, and then there is a free item, for example: > > xfs_dir2_data_unused > freetag -> XFS_DIR2_DATA_FREE_TAG */ > length -> 9A0 > tag -> zero > > But after this free item there is still room in the block, so my > program will try to read the next item. I cannot stop the reading > because it is possible to have valid items, then a free item and then > more valid items. > > The next item start might be something like: > > 00 00 00 2E 00 00 00 02 16 > > So it is not a free item, as it doesn't start with FF = XFS_DIR2_DATA_FREE_TAG > But it isn't valid either, as its name is a bunch of trash =( > > So my questions are: > 1> What are those ghost items in the end of the block? > 2> Which criteria should be utilized to differentiate them from valid > items? I tried some guesses but nothing really works so far... > > Here are screenshots of the actual data involved, here showing the > item with XFS_DIR2_DATA_FREE_TAG: > > http://magnifier.sourceforge.net/temp/xfs/xfs_dir_listing_XD2B_FREE_item.png > > And here showing the area in the end of the block with wierd items: > > http://magnifier.sourceforge.net/temp/xfs/xfs_dir_listing_XD2B_after_FREE.png > > thanks for any tips =) > -- > Felipe Monteiro de Carvalho -- Felipe Monteiro de Carvalho From bfoster@redhat.com Thu Sep 4 11:38:35 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 304B67F37 for ; Thu, 4 Sep 2014 11:38:35 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 1090B304059 for ; Thu, 4 Sep 2014 09:38:31 -0700 (PDT) X-ASG-Debug-ID: 1409848710-04cbb05488a41f90001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 0xlNVTymWtqfDNyW (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 04 Sep 2014 09:38:30 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s84GcUS5018753 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Thu, 4 Sep 2014 12:38:30 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s84GcTFO032524 for ; Thu, 4 Sep 2014 12:38:29 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 705491256F8; Thu, 4 Sep 2014 12:38:28 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH] xfsrestore: use utimensat() to provide atime/mtime with ns resolution Date: Thu, 4 Sep 2014 12:38:28 -0400 X-ASG-Orig-Subj: [PATCH] xfsrestore: use utimensat() to provide atime/mtime with ns resolution Message-Id: <1409848708-42666-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409848710 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 xfsdump encodes and stores the full atime and mtime for each file with nanosecond resolution. xfsrestore uses utime() to set the times of each file that is restored. The latter supports resolution of 1 second, thus sub-second timestamp data is lost on restore. Add the associated configure checks for and use utimensat() when available to restore timestamps with nanosecond resolution. Create a new helper to facilitate conditional support for utimensat(). Signed-off-by: Brian Foster --- I'm not totally sure on the configure bits here... it's mostly copied from xfsprogs and tweaked appropriately. It seems to work, at least. ;) Brian configure.ac | 2 ++ include/builddefs.in | 1 + m4/Makefile | 1 + m4/package_libcdev.m4 | 16 ++++++++++++++++ restore/Makefile | 4 ++++ restore/content.c | 38 ++++++++++++++++++++++++++++++-------- 6 files changed, 54 insertions(+), 8 deletions(-) create mode 100644 m4/package_libcdev.m4 diff --git a/configure.ac b/configure.ac index 59f9564..28e604e 100644 --- a/configure.ac +++ b/configure.ac @@ -82,6 +82,8 @@ AC_PACKAGE_NEED_ATTRIBUTES_H AC_PACKAGE_NEED_ATTRIBUTES_MACROS AC_PACKAGE_NEED_ATTRGET_LIBATTR +AC_HAVE_UTIMENSAT + AC_MANUAL_FORMAT AC_CONFIG_FILES([include/builddefs]) diff --git a/include/builddefs.in b/include/builddefs.in index 269c928..bdf0ede 100644 --- a/include/builddefs.in +++ b/include/builddefs.in @@ -69,6 +69,7 @@ ENABLE_SHARED = @enable_shared@ ENABLE_GETTEXT = @enable_gettext@ HAVE_ZIPPED_MANPAGES = @have_zipped_manpages@ +HAVE_UTIMENSAT = @have_utimensat@ GCCFLAGS = -funsigned-char -fno-strict-aliasing -Wall # -Wbitwise -Wno-transparent-union -Wno-old-initializer -Wno-decl diff --git a/m4/Makefile b/m4/Makefile index 9a35056..ae452f7 100644 --- a/m4/Makefile +++ b/m4/Makefile @@ -16,6 +16,7 @@ LSRCFILES = \ manual_format.m4 \ package_attrdev.m4 \ package_globals.m4 \ + package_libcdev.m4 \ package_ncurses.m4 \ package_pthread.m4 \ package_utilies.m4 \ diff --git a/m4/package_libcdev.m4 b/m4/package_libcdev.m4 new file mode 100644 index 0000000..6fcbdba --- /dev/null +++ b/m4/package_libcdev.m4 @@ -0,0 +1,16 @@ +# +# Check if we have a utimensat libc call +# +AC_DEFUN([AC_HAVE_UTIMENSAT], + [ AC_MSG_CHECKING([for utimensat]) + AC_TRY_COMPILE([ +#define _ATFILE_SOURCE +#include +#include + ], [ + utimensat(AT_FDCWD, 0, 0, AT_SYMLINK_NOFOLLOW); + ], have_utimensat=yes + AC_MSG_RESULT(yes), + AC_MSG_RESULT(no)) + AC_SUBST(have_utimensat) + ]) diff --git a/restore/Makefile b/restore/Makefile index c6f3f25..c5cf925 100644 --- a/restore/Makefile +++ b/restore/Makefile @@ -102,6 +102,10 @@ LTDEPENDENCIES = $(LIBRMT) LCFLAGS = -DRESTORE +ifeq ($(HAVE_UTIMENSAT),yes) +LCFLAGS += -DHAVE_UTIMENSAT +endif + default: depend $(LTCOMMAND) include $(BUILDRULES) diff --git a/restore/content.c b/restore/content.c index cfcf94d..65dc2f5 100644 --- a/restore/content.c +++ b/restore/content.c @@ -7418,6 +7418,34 @@ done: return 0; } +/* + * Set the access and modification times for a file. + */ +static int +restore_file_amtime( + const char *path, + struct bstat *bstatp) +{ + int rval; + +#ifdef HAVE_UTIMENSAT + struct timespec times[2]; + + times[0].tv_sec = bstatp->bs_atime.tv_sec; + times[0].tv_nsec = bstatp->bs_atime.tv_nsec; + times[1].tv_sec = bstatp->bs_mtime.tv_sec; + times[1].tv_nsec = bstatp->bs_mtime.tv_nsec; + rval = utimensat(AT_FDCWD, path, times, 0); +#else + struct utimbuf utimbuf; + + utimbuf.actime = ( time32_t )bstatp->bs_atime.tv_sec; + utimbuf.modtime = ( time32_t )bstatp->bs_mtime.tv_sec; + rval = utime(path, &utimbuf); +#endif + return rval; +} + /* called to begin a regular file. if no path given, or if just toc, * don't actually write, just read. also get into that situation if * cannot prepare destination. fd == -1 signifies no write. *statp @@ -7671,7 +7699,6 @@ restore_complete_reg(stream_context_t *strcxtp) bstat_t *bstatp = &strcxtp->sc_bstat; char *path = strcxtp->sc_path; intgen_t fd = strcxtp->sc_fd; - struct utimbuf utimbuf; intgen_t rval; // only applies to regular files @@ -7688,9 +7715,7 @@ restore_complete_reg(stream_context_t *strcxtp) /* set the access and modification times */ - utimbuf.actime = ( time32_t )bstatp->bs_atime.tv_sec; - utimbuf.modtime = ( time32_t )bstatp->bs_mtime.tv_sec; - rval = utime( path, &utimbuf ); + rval = restore_file_amtime(path, bstatp); if ( rval ) { mlog( MLOG_VERBOSE | MLOG_WARNING, _( "unable to set access and modification " @@ -7770,7 +7795,6 @@ static bool_t restore_spec( filehdr_t *fhdrp, rv_t *rvp, char *path ) { bstat_t *bstatp = &fhdrp->fh_stat; - struct utimbuf utimbuf; char *printstr; intgen_t rval; @@ -7913,9 +7937,7 @@ restore_spec( filehdr_t *fhdrp, rv_t *rvp, char *path ) /* set the access and modification times */ - utimbuf.actime = ( time32_t )bstatp->bs_atime.tv_sec; - utimbuf.modtime = ( time32_t )bstatp->bs_mtime.tv_sec; - rval = utime( path, &utimbuf ); + rval = restore_file_amtime(path, bstatp); if ( rval ) { mlog( MLOG_VERBOSE | MLOG_WARNING, _( "unable to set access and modification " -- 1.8.3.1 From rh2@mexicocalendario2014.info Thu Sep 4 12:35:28 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 074047F37 for ; Thu, 4 Sep 2014 12:35:28 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id EA101304062 for ; 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------=SPLITOR00A_001_266525305D-- From sandeen@sandeen.net Thu Sep 4 14:47:03 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 4AFC87F37 for ; Thu, 4 Sep 2014 14:47:03 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 33D1F304070 for ; Thu, 4 Sep 2014 12:47:02 -0700 (PDT) X-ASG-Debug-ID: 1409860020-04cbb05485a51810001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id AS83GgTBHfO7MCNE for ; Thu, 04 Sep 2014 12:47:00 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 69B46653AF00; Thu, 4 Sep 2014 14:47:00 -0500 (CDT) Message-ID: <5408C1B4.1010001@sandeen.net> Date: Thu, 04 Sep 2014 14:47:00 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Brian Foster , xfs@oss.sgi.com Subject: Re: [PATCH] xfsrestore: use utimensat() to provide atime/mtime with ns resolution References: <1409848708-42666-1-git-send-email-bfoster@redhat.com> X-ASG-Orig-Subj: Re: [PATCH] xfsrestore: use utimensat() to provide atime/mtime with ns resolution In-Reply-To: <1409848708-42666-1-git-send-email-bfoster@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1409860020 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9178 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/4/14, 11:38 AM, Brian Foster wrote: > xfsdump encodes and stores the full atime and mtime for each file with > nanosecond resolution. xfsrestore uses utime() to set the times of each > file that is restored. The latter supports resolution of 1 second, thus > sub-second timestamp data is lost on restore. > > Add the associated configure checks for and use utimensat() when > available to restore timestamps with nanosecond resolution. Create a new > helper to facilitate conditional support for utimensat(). > > Signed-off-by: Brian Foster > --- > > I'm not totally sure on the configure bits here... it's mostly copied > from xfsprogs and tweaked appropriately. It seems to work, at least. ;) > > Brian > > configure.ac | 2 ++ > include/builddefs.in | 1 + > m4/Makefile | 1 + > m4/package_libcdev.m4 | 16 ++++++++++++++++ > restore/Makefile | 4 ++++ > restore/content.c | 38 ++++++++++++++++++++++++++++++-------- > 6 files changed, 54 insertions(+), 8 deletions(-) > create mode 100644 m4/package_libcdev.m4 > > diff --git a/configure.ac b/configure.ac > index 59f9564..28e604e 100644 > --- a/configure.ac > +++ b/configure.ac > @@ -82,6 +82,8 @@ AC_PACKAGE_NEED_ATTRIBUTES_H > AC_PACKAGE_NEED_ATTRIBUTES_MACROS > AC_PACKAGE_NEED_ATTRGET_LIBATTR > > +AC_HAVE_UTIMENSAT > + > AC_MANUAL_FORMAT > > AC_CONFIG_FILES([include/builddefs]) > diff --git a/include/builddefs.in b/include/builddefs.in > index 269c928..bdf0ede 100644 > --- a/include/builddefs.in > +++ b/include/builddefs.in > @@ -69,6 +69,7 @@ ENABLE_SHARED = @enable_shared@ > ENABLE_GETTEXT = @enable_gettext@ > > HAVE_ZIPPED_MANPAGES = @have_zipped_manpages@ > +HAVE_UTIMENSAT = @have_utimensat@ > > GCCFLAGS = -funsigned-char -fno-strict-aliasing -Wall > # -Wbitwise -Wno-transparent-union -Wno-old-initializer -Wno-decl > diff --git a/m4/Makefile b/m4/Makefile > index 9a35056..ae452f7 100644 > --- a/m4/Makefile > +++ b/m4/Makefile > @@ -16,6 +16,7 @@ LSRCFILES = \ > manual_format.m4 \ > package_attrdev.m4 \ > package_globals.m4 \ > + package_libcdev.m4 \ > package_ncurses.m4 \ > package_pthread.m4 \ > package_utilies.m4 \ > diff --git a/m4/package_libcdev.m4 b/m4/package_libcdev.m4 > new file mode 100644 > index 0000000..6fcbdba > --- /dev/null > +++ b/m4/package_libcdev.m4 > @@ -0,0 +1,16 @@ > +# > +# Check if we have a utimensat libc call > +# > +AC_DEFUN([AC_HAVE_UTIMENSAT], > + [ AC_MSG_CHECKING([for utimensat]) > + AC_TRY_COMPILE([ (as discussed on IRC...) I think you need AC_TRY_LINK here; changing utimensat() to utimensatFOO() still passes. ;) -Eric From bfoster@redhat.com Thu Sep 4 16:35:23 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E62877F37 for ; Thu, 4 Sep 2014 16:35:22 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 835F5AC003 for ; Thu, 4 Sep 2014 14:35:19 -0700 (PDT) X-ASG-Debug-ID: 1409866515-04bdf0109a766a40001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 9Aqr9nZo3erhH2eJ (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 04 Sep 2014 14:35:15 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s84LZEP2008001 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 4 Sep 2014 17:35:14 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s84LZD7h011318; Thu, 4 Sep 2014 17:35:13 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 2BC191256F8; Thu, 4 Sep 2014 17:35:12 -0400 (EDT) Date: Thu, 4 Sep 2014 17:35:12 -0400 From: Brian Foster To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH] xfsrestore: use utimensat() to provide atime/mtime with ns resolution Message-ID: <20140904213511.GA902@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfsrestore: use utimensat() to provide atime/mtime with ns resolution References: <1409848708-42666-1-git-send-email-bfoster@redhat.com> <5408C1B4.1010001@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5408C1B4.1010001@sandeen.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409866515 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Sep 04, 2014 at 02:47:00PM -0500, Eric Sandeen wrote: > On 9/4/14, 11:38 AM, Brian Foster wrote: > >xfsdump encodes and stores the full atime and mtime for each file with > >nanosecond resolution. xfsrestore uses utime() to set the times of each > >file that is restored. The latter supports resolution of 1 second, thus > >sub-second timestamp data is lost on restore. > > > >Add the associated configure checks for and use utimensat() when > >available to restore timestamps with nanosecond resolution. Create a new > >helper to facilitate conditional support for utimensat(). > > > >Signed-off-by: Brian Foster > >--- > > > >I'm not totally sure on the configure bits here... it's mostly copied > >from xfsprogs and tweaked appropriately. It seems to work, at least. ;) > > > >Brian > > > > configure.ac | 2 ++ > > include/builddefs.in | 1 + > > m4/Makefile | 1 + > > m4/package_libcdev.m4 | 16 ++++++++++++++++ > > restore/Makefile | 4 ++++ > > restore/content.c | 38 ++++++++++++++++++++++++++++++-------- > > 6 files changed, 54 insertions(+), 8 deletions(-) > > create mode 100644 m4/package_libcdev.m4 > > > >diff --git a/configure.ac b/configure.ac > >index 59f9564..28e604e 100644 > >--- a/configure.ac > >+++ b/configure.ac > >@@ -82,6 +82,8 @@ AC_PACKAGE_NEED_ATTRIBUTES_H > > AC_PACKAGE_NEED_ATTRIBUTES_MACROS > > AC_PACKAGE_NEED_ATTRGET_LIBATTR > > > >+AC_HAVE_UTIMENSAT > >+ > > AC_MANUAL_FORMAT > > > > AC_CONFIG_FILES([include/builddefs]) > >diff --git a/include/builddefs.in b/include/builddefs.in > >index 269c928..bdf0ede 100644 > >--- a/include/builddefs.in > >+++ b/include/builddefs.in > >@@ -69,6 +69,7 @@ ENABLE_SHARED = @enable_shared@ > > ENABLE_GETTEXT = @enable_gettext@ > > > > HAVE_ZIPPED_MANPAGES = @have_zipped_manpages@ > >+HAVE_UTIMENSAT = @have_utimensat@ > > > > GCCFLAGS = -funsigned-char -fno-strict-aliasing -Wall > > # -Wbitwise -Wno-transparent-union -Wno-old-initializer -Wno-decl > >diff --git a/m4/Makefile b/m4/Makefile > >index 9a35056..ae452f7 100644 > >--- a/m4/Makefile > >+++ b/m4/Makefile > >@@ -16,6 +16,7 @@ LSRCFILES = \ > > manual_format.m4 \ > > package_attrdev.m4 \ > > package_globals.m4 \ > >+ package_libcdev.m4 \ > > package_ncurses.m4 \ > > package_pthread.m4 \ > > package_utilies.m4 \ > >diff --git a/m4/package_libcdev.m4 b/m4/package_libcdev.m4 > >new file mode 100644 > >index 0000000..6fcbdba > >--- /dev/null > >+++ b/m4/package_libcdev.m4 > >@@ -0,0 +1,16 @@ > >+# > >+# Check if we have a utimensat libc call > >+# > >+AC_DEFUN([AC_HAVE_UTIMENSAT], > >+ [ AC_MSG_CHECKING([for utimensat]) > >+ AC_TRY_COMPILE([ > > (as discussed on IRC...) > > I think you need AC_TRY_LINK here; changing utimensat() to utimensatFOO() still > passes. ;) > Yeah... I tested that by breaking the function signature. I'm guessing this does a 'gcc -c,' which lets me compile pretty much any kind of call if no function declaration is found in a header. AC_TRY_LINK() does what we want. Thanks for catching that. Brian > -Eric From bfoster@redhat.com Thu Sep 4 16:42:23 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 2B5157F37 for ; Thu, 4 Sep 2014 16:42:23 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id E0E43304059 for ; Thu, 4 Sep 2014 14:42:22 -0700 (PDT) X-ASG-Debug-ID: 1409866941-04bdf010a1766ec0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id rq5gKN3Nl0utAWH7 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 04 Sep 2014 14:42:21 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s84LgLXD009509 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Thu, 4 Sep 2014 17:42:21 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s84LgL8J013261 for ; Thu, 4 Sep 2014 17:42:21 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 98E0F1256F8; Thu, 4 Sep 2014 17:42:19 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH v2] xfsrestore: use utimensat() to provide atime/mtime with ns resolution Date: Thu, 4 Sep 2014 17:42:19 -0400 X-ASG-Orig-Subj: [PATCH v2] xfsrestore: use utimensat() to provide atime/mtime with ns resolution Message-Id: <1409866939-1480-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409866941 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 xfsdump encodes and stores the full atime and mtime for each file with nanosecond resolution. xfsrestore uses utime() to set the times of each file that is restored. The latter supports resolution of 1 second, thus sub-second timestamp data is lost on restore. Add the associated configure checks for and use utimensat() when available to restore timestamps with nanosecond resolution. Create a new helper to facilitate conditional support for utimensat(). Signed-off-by: Brian Foster --- v2: - Use AC_TRY_LINK() instead of AC_TRY_COMPILE() to ensure utimensat() exists. v1: http://oss.sgi.com/archives/xfs/2014-09/msg00025.html configure.ac | 2 ++ include/builddefs.in | 1 + m4/Makefile | 1 + m4/package_libcdev.m4 | 16 ++++++++++++++++ restore/Makefile | 4 ++++ restore/content.c | 38 ++++++++++++++++++++++++++++++-------- 6 files changed, 54 insertions(+), 8 deletions(-) create mode 100644 m4/package_libcdev.m4 diff --git a/configure.ac b/configure.ac index 59f9564..28e604e 100644 --- a/configure.ac +++ b/configure.ac @@ -82,6 +82,8 @@ AC_PACKAGE_NEED_ATTRIBUTES_H AC_PACKAGE_NEED_ATTRIBUTES_MACROS AC_PACKAGE_NEED_ATTRGET_LIBATTR +AC_HAVE_UTIMENSAT + AC_MANUAL_FORMAT AC_CONFIG_FILES([include/builddefs]) diff --git a/include/builddefs.in b/include/builddefs.in index 269c928..bdf0ede 100644 --- a/include/builddefs.in +++ b/include/builddefs.in @@ -69,6 +69,7 @@ ENABLE_SHARED = @enable_shared@ ENABLE_GETTEXT = @enable_gettext@ HAVE_ZIPPED_MANPAGES = @have_zipped_manpages@ +HAVE_UTIMENSAT = @have_utimensat@ GCCFLAGS = -funsigned-char -fno-strict-aliasing -Wall # -Wbitwise -Wno-transparent-union -Wno-old-initializer -Wno-decl diff --git a/m4/Makefile b/m4/Makefile index 9a35056..ae452f7 100644 --- a/m4/Makefile +++ b/m4/Makefile @@ -16,6 +16,7 @@ LSRCFILES = \ manual_format.m4 \ package_attrdev.m4 \ package_globals.m4 \ + package_libcdev.m4 \ package_ncurses.m4 \ package_pthread.m4 \ package_utilies.m4 \ diff --git a/m4/package_libcdev.m4 b/m4/package_libcdev.m4 new file mode 100644 index 0000000..8301ca6 --- /dev/null +++ b/m4/package_libcdev.m4 @@ -0,0 +1,16 @@ +# +# Check if we have a utimensat libc call +# +AC_DEFUN([AC_HAVE_UTIMENSAT], + [ AC_MSG_CHECKING([for utimensat]) + AC_TRY_LINK([ +#define _ATFILE_SOURCE +#include +#include + ], [ + utimensat(AT_FDCWD, 0, 0, AT_SYMLINK_NOFOLLOW); + ], have_utimensat=yes + AC_MSG_RESULT(yes), + AC_MSG_RESULT(no)) + AC_SUBST(have_utimensat) + ]) diff --git a/restore/Makefile b/restore/Makefile index c6f3f25..c5cf925 100644 --- a/restore/Makefile +++ b/restore/Makefile @@ -102,6 +102,10 @@ LTDEPENDENCIES = $(LIBRMT) LCFLAGS = -DRESTORE +ifeq ($(HAVE_UTIMENSAT),yes) +LCFLAGS += -DHAVE_UTIMENSAT +endif + default: depend $(LTCOMMAND) include $(BUILDRULES) diff --git a/restore/content.c b/restore/content.c index cfcf94d..65dc2f5 100644 --- a/restore/content.c +++ b/restore/content.c @@ -7418,6 +7418,34 @@ done: return 0; } +/* + * Set the access and modification times for a file. + */ +static int +restore_file_amtime( + const char *path, + struct bstat *bstatp) +{ + int rval; + +#ifdef HAVE_UTIMENSAT + struct timespec times[2]; + + times[0].tv_sec = bstatp->bs_atime.tv_sec; + times[0].tv_nsec = bstatp->bs_atime.tv_nsec; + times[1].tv_sec = bstatp->bs_mtime.tv_sec; + times[1].tv_nsec = bstatp->bs_mtime.tv_nsec; + rval = utimensat(AT_FDCWD, path, times, 0); +#else + struct utimbuf utimbuf; + + utimbuf.actime = ( time32_t )bstatp->bs_atime.tv_sec; + utimbuf.modtime = ( time32_t )bstatp->bs_mtime.tv_sec; + rval = utime(path, &utimbuf); +#endif + return rval; +} + /* called to begin a regular file. if no path given, or if just toc, * don't actually write, just read. also get into that situation if * cannot prepare destination. fd == -1 signifies no write. *statp @@ -7671,7 +7699,6 @@ restore_complete_reg(stream_context_t *strcxtp) bstat_t *bstatp = &strcxtp->sc_bstat; char *path = strcxtp->sc_path; intgen_t fd = strcxtp->sc_fd; - struct utimbuf utimbuf; intgen_t rval; // only applies to regular files @@ -7688,9 +7715,7 @@ restore_complete_reg(stream_context_t *strcxtp) /* set the access and modification times */ - utimbuf.actime = ( time32_t )bstatp->bs_atime.tv_sec; - utimbuf.modtime = ( time32_t )bstatp->bs_mtime.tv_sec; - rval = utime( path, &utimbuf ); + rval = restore_file_amtime(path, bstatp); if ( rval ) { mlog( MLOG_VERBOSE | MLOG_WARNING, _( "unable to set access and modification " @@ -7770,7 +7795,6 @@ static bool_t restore_spec( filehdr_t *fhdrp, rv_t *rvp, char *path ) { bstat_t *bstatp = &fhdrp->fh_stat; - struct utimbuf utimbuf; char *printstr; intgen_t rval; @@ -7913,9 +7937,7 @@ restore_spec( filehdr_t *fhdrp, rv_t *rvp, char *path ) /* set the access and modification times */ - utimbuf.actime = ( time32_t )bstatp->bs_atime.tv_sec; - utimbuf.modtime = ( time32_t )bstatp->bs_mtime.tv_sec; - rval = utime( path, &utimbuf ); + rval = restore_file_amtime(path, bstatp); if ( rval ) { mlog( MLOG_VERBOSE | MLOG_WARNING, _( "unable to set access and modification " -- 1.8.3.1 From david@fromorbit.com Thu Sep 4 19:39:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 9F0967F37 for ; Thu, 4 Sep 2014 19:39:26 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6AC818F8049 for ; Thu, 4 Sep 2014 17:39:26 -0700 (PDT) X-ASG-Debug-ID: 1409877560-04bdf0109776e7f0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id o5qq1Y2gP3PMqeGc for ; Thu, 04 Sep 2014 17:39:20 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AiV/AN0ECVR5LKYhPGdsb2JhbABZgw2BKoIshQeGFaIBBppBhWkBAwEBAYEIFwUBAQEBODaEAwEBBAE6HCMFCwgDGAklDwUlAwcaExSIJge9WAEXGIVkiVEHhEwBBI8pjUKZFisvgk8BAQE Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail06.adl6.internode.on.net with ESMTP; 05 Sep 2014 10:09:20 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XPhYc-0007hT-Mv; Fri, 05 Sep 2014 10:39:18 +1000 Date: Fri, 5 Sep 2014 10:39:18 +1000 From: Dave Chinner To: Felipe Monteiro de Carvalho Cc: xfs@oss.sgi.com Subject: Re: Ghost items in the end of a dir listing Message-ID: <20140905003918.GT20518@dastard> X-ASG-Orig-Subj: Re: Ghost items in the end of a dir listing References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409877560 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9186 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Sep 04, 2014 at 12:14:39PM +0200, Felipe Monteiro de Carvalho wrote: > Hello, > > No ideas about this? =( I know *exactly* what is going on. > Any kind of tip would be really appreciated =) TANSTAAFL. You are asking an open source community for help developing your closed source project. If you want our help, then it should be pretty obvious what you need to do.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Sep 4 19:45:15 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BA0327F37 for ; Thu, 4 Sep 2014 19:45:15 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 617FFAC003 for ; Thu, 4 Sep 2014 17:45:12 -0700 (PDT) X-ASG-Debug-ID: 1409877910-04bdf010a176eb20001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id VDGRG3O3zj19nlhw for ; Thu, 04 Sep 2014 17:45:10 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AuIuAFoHCVR5LKYhPGdsb2JhbABZgw2BKoIshQeoFgaaQYVpAQMBAQGBCBcFAQEBATg2hAQBBTocIxAIAw4KCSUPBSUDBxoTiEG9WgEXGIVkiVEHhEwFnGuXPoFYKy+CTwEBAQ Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail06.adl6.internode.on.net with ESMTP; 05 Sep 2014 10:15:03 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XPhe9-0007iN-HC; Fri, 05 Sep 2014 10:45:01 +1000 Date: Fri, 5 Sep 2014 10:45:01 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH] xfsrestore: use utimensat() to provide atime/mtime with ns resolution Message-ID: <20140905004501.GU20518@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfsrestore: use utimensat() to provide atime/mtime with ns resolution References: <1409848708-42666-1-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409848708-42666-1-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409877910 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9186 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Sep 04, 2014 at 12:38:28PM -0400, Brian Foster wrote: > xfsdump encodes and stores the full atime and mtime for each file with > nanosecond resolution. xfsrestore uses utime() to set the times of each > file that is restored. The latter supports resolution of 1 second, thus > sub-second timestamp data is lost on restore. That doesn't seem like a big deal. What sort of problems does this actually cause? FYI, many linux filesystems only have second resolution timestamps and hence applications can't rely on sub-second timestamp resolution to actually mean anything useful.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From sandeen@sandeen.net Thu Sep 4 20:04:55 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id A41717F37 for ; Thu, 4 Sep 2014 20:04:55 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7F4B38F8040 for ; Thu, 4 Sep 2014 18:04:52 -0700 (PDT) X-ASG-Debug-ID: 1409879091-04cb6c54ff7d2990001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id fJwsNMReQI2QNni7 for ; Thu, 04 Sep 2014 18:04:51 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 371AE653AF00; Thu, 4 Sep 2014 20:04:51 -0500 (CDT) Message-ID: <54090C33.2060102@sandeen.net> Date: Thu, 04 Sep 2014 20:04:51 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Dave Chinner , Brian Foster CC: xfs@oss.sgi.com Subject: Re: [PATCH] xfsrestore: use utimensat() to provide atime/mtime with ns resolution References: <1409848708-42666-1-git-send-email-bfoster@redhat.com> <20140905004501.GU20518@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfsrestore: use utimensat() to provide atime/mtime with ns resolution In-Reply-To: <20140905004501.GU20518@dastard> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1409879091 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9186 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/4/14, 7:45 PM, Dave Chinner wrote: > On Thu, Sep 04, 2014 at 12:38:28PM -0400, Brian Foster wrote: >> xfsdump encodes and stores the full atime and mtime for each file with >> nanosecond resolution. xfsrestore uses utime() to set the times of each >> file that is restored. The latter supports resolution of 1 second, thus >> sub-second timestamp data is lost on restore. > > That doesn't seem like a big deal. What sort of problems does this > actually cause? > > FYI, many linux filesystems only have second resolution timestamps > and hence applications can't rely on sub-second timestamp resolution > to actually mean anything useful.... But why not restore the same resolution as is actually stored in the dump? Throwing it away seems odd, and restoring it looks easy enough. In any case, there was a user who noticed & complained. Seems like a very reasonable thing to fix, to me. -Eric From david@fromorbit.com Thu Sep 4 20:24:15 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 30C907F37 for ; Thu, 4 Sep 2014 20:24:15 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id AFDC2AC001 for ; Thu, 4 Sep 2014 18:24:11 -0700 (PDT) X-ASG-Debug-ID: 1409880248-04cb6c54fe7d31c0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id htIZOf7L21BC1k27 for ; Thu, 04 Sep 2014 18:24:09 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AuQuAI0PCVR5LKYhPGdsb2JhbABZgw2BKoIshQeoFwaaQYVpAQMBAQGBCBcFAQEBATg2hAMBAQQBOhwjBQsIAxgJJQ8FJQMHGhOIOge9YAEXGIVkiVEHhEwFnGuXPoFYKy+CTwEBAQ Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail06.adl6.internode.on.net with ESMTP; 05 Sep 2014 10:54:07 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XPiFw-0007nZ-V6; Fri, 05 Sep 2014 11:24:04 +1000 Date: Fri, 5 Sep 2014 11:24:04 +1000 From: Dave Chinner To: Eric Sandeen Cc: Brian Foster , xfs@oss.sgi.com Subject: Re: [PATCH] xfsrestore: use utimensat() to provide atime/mtime with ns resolution Message-ID: <20140905012404.GV20518@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfsrestore: use utimensat() to provide atime/mtime with ns resolution References: <1409848708-42666-1-git-send-email-bfoster@redhat.com> <20140905004501.GU20518@dastard> <54090C33.2060102@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <54090C33.2060102@sandeen.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409880248 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9187 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Sep 04, 2014 at 08:04:51PM -0500, Eric Sandeen wrote: > On 9/4/14, 7:45 PM, Dave Chinner wrote: > >On Thu, Sep 04, 2014 at 12:38:28PM -0400, Brian Foster wrote: > >>xfsdump encodes and stores the full atime and mtime for each file with > >>nanosecond resolution. xfsrestore uses utime() to set the times of each > >>file that is restored. The latter supports resolution of 1 second, thus > >>sub-second timestamp data is lost on restore. > > > >That doesn't seem like a big deal. What sort of problems does this > >actually cause? > > > >FYI, many linux filesystems only have second resolution timestamps > >and hence applications can't rely on sub-second timestamp resolution > >to actually mean anything useful.... > > But why not restore the same resolution as is actually stored in the dump? > Throwing it away seems odd, and restoring it looks easy enough. Comes from a time when we couldn't restore what was in the dump. :/ > In any case, there was a user who noticed & complained. Seems like a > very reasonable thing to fix, to me. Sure, but we don't make changes with the justification "just because". xfsrestore has had this behaviour since dump/restore was first introduced, so first we need to understand what the actual problem is. Was the user complaining because they noticed they were "different" in passing, or was it noticed because the difference is the root cause of some other problem? Cheers, Dave. -- Dave Chinner david@fromorbit.com From s.priebe@profihost.ag Fri Sep 5 04:47:36 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 1E1AB7F3F for ; Fri, 5 Sep 2014 04:47:36 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 0B44F30404E for ; Fri, 5 Sep 2014 02:47:32 -0700 (PDT) X-ASG-Debug-ID: 1409910450-04cbb05486a6b8d0001-NocioJ Received: from mail-ph.de-nserver.de (mail-ph.de-nserver.de [85.158.179.214]) by cuda.sgi.com with ESMTP id dbMlkDQsBWLZKJDR (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 05 Sep 2014 02:47:31 -0700 (PDT) X-Barracuda-Envelope-From: s.priebe@profihost.ag X-Barracuda-Apparent-Source-IP: 85.158.179.214 Received: (qmail 8072 invoked from network); 5 Sep 2014 11:47:29 +0200 X-Fcrdns: No Received: from phoffice.de-nserver.de (HELO [10.11.11.93]) (185.39.223.5) (smtp-auth username hostmaster@profihost.com, mechanism plain) by mail-ph.de-nserver.de (qpsmtpd/0.92) with (ECDHE-RSA-AES256-SHA encrypted) ESMTPSA; Fri, 05 Sep 2014 11:47:29 +0200 Message-ID: <540986B1.4080306@profihost.ag> Date: Fri, 05 Sep 2014 11:47:29 +0200 From: Stefan Priebe - Profihost AG User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0 MIME-Version: 1.0 To: "xfs@oss.sgi.com" Subject: Is XFS suitable for 350 million files on 20TB storage? Content-Type: text/plain; charset=utf-8 X-ASG-Orig-Subj: Is XFS suitable for 350 million files on 20TB storage? Content-Transfer-Encoding: 7bit X-User-Auth: Auth by hostmaster@profihost.com through 185.39.223.5 X-Barracuda-Connect: mail-ph.de-nserver.de[85.158.179.214] X-Barracuda-Start-Time: 1409910450 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9198 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi, i have a backup system running 20TB of storage having 350 million files. This was working fine for month. But now the free space is so heavily fragmented that i only see the kworker with 4x 100% CPU and write speed beeing very slow. 15TB of the 20TB are in use. Overall files are 350 Million - all in different directories. Max 5000 per dir. Kernel is 3.10.53 and mount options are: noatime,nodiratime,attr2,inode64,logbufs=8,logbsize=256k,noquota # xfs_db -r -c freesp /dev/sda1 from to extents blocks pct 1 1 29484138 29484138 2,16 2 3 16930134 39834672 2,92 4 7 16169985 87877159 6,45 8 15 78202543 999838327 73,41 16 31 3562456 83746085 6,15 32 63 2370812 102124143 7,50 64 127 280885 18929867 1,39 256 511 2 827 0,00 512 1023 65 35092 0,00 2048 4095 2 6561 0,00 16384 32767 1 23951 0,00 Is there anything i can optimize? Or is it just a bad idea to do this with XFS? Any other options? Maybe rsync options like --inplace / --no-whole-file? Greets, Stefan From bfoster@redhat.com Fri Sep 5 06:07:54 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id A9BD97F3F for ; Fri, 5 Sep 2014 06:07:54 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 536B7AC003 for ; Fri, 5 Sep 2014 04:07:54 -0700 (PDT) X-ASG-Debug-ID: 1409915270-04bdf010a0781990001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id uisHmQYtTYkEN9xE (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 05 Sep 2014 04:07:50 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s85B7ghk031989 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 5 Sep 2014 07:07:42 -0400 Received: from laptop.bfoster (vpn-61-160.rdu2.redhat.com [10.10.61.160]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s85B7eB1014567 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 5 Sep 2014 07:07:41 -0400 Date: Fri, 5 Sep 2014 07:02:12 -0400 From: Brian Foster To: Dave Chinner Cc: Eric Sandeen , xfs@oss.sgi.com Subject: Re: [PATCH] xfsrestore: use utimensat() to provide atime/mtime with ns resolution Message-ID: <20140905110211.GA3208@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfsrestore: use utimensat() to provide atime/mtime with ns resolution References: <1409848708-42666-1-git-send-email-bfoster@redhat.com> <20140905004501.GU20518@dastard> <54090C33.2060102@sandeen.net> <20140905012404.GV20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140905012404.GV20518@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409915270 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Sep 05, 2014 at 11:24:04AM +1000, Dave Chinner wrote: > On Thu, Sep 04, 2014 at 08:04:51PM -0500, Eric Sandeen wrote: > > On 9/4/14, 7:45 PM, Dave Chinner wrote: > > >On Thu, Sep 04, 2014 at 12:38:28PM -0400, Brian Foster wrote: > > >>xfsdump encodes and stores the full atime and mtime for each file with > > >>nanosecond resolution. xfsrestore uses utime() to set the times of each > > >>file that is restored. The latter supports resolution of 1 second, thus > > >>sub-second timestamp data is lost on restore. > > > > > >That doesn't seem like a big deal. What sort of problems does this > > >actually cause? > > > > > >FYI, many linux filesystems only have second resolution timestamps > > >and hence applications can't rely on sub-second timestamp resolution > > >to actually mean anything useful.... > > > > But why not restore the same resolution as is actually stored in the dump? > > Throwing it away seems odd, and restoring it looks easy enough. > > Comes from a time when we couldn't restore what was in the dump. :/ > > > In any case, there was a user who noticed & complained. Seems like a > > very reasonable thing to fix, to me. > > Sure, but we don't make changes with the justification "just > because". xfsrestore has had this behaviour since dump/restore was > first introduced, so first we need to understand what the actual > problem is. Was the user complaining because they noticed they were > "different" in passing, or was it noticed because the difference is > the root cause of some other problem? > No problems that I'm aware of. As Eric mentioned, it was noticed during an evaluation of possible data transfer mechanisms for a glusterfs setup. The user had to evaluate whether it would lead to any issues (a geo-replication tracking thing I suspect) for a customer, but I hadn't heard anything that suggested it was. The utime() call appears to be obsolete as well, for whatever that's worth. Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com From greg.freemyer@gmail.com Fri Sep 5 06:19:43 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E206C7F3F for ; Fri, 5 Sep 2014 06:19:43 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id CF409304070 for ; Fri, 5 Sep 2014 04:19:40 -0700 (PDT) X-ASG-Debug-ID: 1409915975-04cb6c54fd7e46f0001-NocioJ Received: from mail-qg0-f42.google.com (mail-qg0-f42.google.com [209.85.192.42]) by cuda.sgi.com with ESMTP id HQ45p3JsZoJxDKjt (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Fri, 05 Sep 2014 04:19:36 -0700 (PDT) X-Barracuda-Envelope-From: greg.freemyer@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.192.42 X-Barracuda-IPDD: Level1 [gmail.com/209.85.192.42] Received: by mail-qg0-f42.google.com with SMTP id q107so2274894qgd.15 for ; Fri, 05 Sep 2014 04:19:35 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.192.42] X-Barracuda-IPDD: Level1 [gmail.com/209.85.192.42] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=user-agent:in-reply-to:references:mime-version :content-transfer-encoding:content-type:subject:from:date:to:cc :message-id; bh=Nq5x1wX3+z4pJTTiM4O/97qq8Sf+wcjFUAFSO0Gsa1o=; b=X3T/bP67ljXIxMZINYG3oJp38f1HTCnF7MDRGtST9q4UTky/LGjH3EOszRA9WTXsc7 /xEjXGSqBs9S5pyHNGoD0q8Jx0imX0+3V2xfKiNuOKv7lHCkSSU1juYWMv1khUaiqedw U5j0m+q8uLvzstP83ISegu/qZr4RiOdccOL0JpchOSeLfO3QSXA1Y5CgijH/c/oktgvQ RxqKatKPUoeqqruLhISZPaGFjnyveGGKZYPjbUs2Bp3P/w7Tz8rFKxjvI/MGlW8EuFg6 EGDMFVgjkbcc+qIStkCLYvyg5azg9/FRISmNSbwyao/tdrUWTRQbCZh6/wzBZLKl0Onj gsug== X-Received: by 10.224.11.212 with SMTP id u20mr7940769qau.82.1409915975741; Fri, 05 Sep 2014 04:19:35 -0700 (PDT) Received: from [192.168.3.73] (c-98-251-114-210.hsd1.ga.comcast.net. [98.251.114.210]) by mx.google.com with ESMTPSA id 95sm567484qgm.18.2014.09.05.04.19.33 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 05 Sep 2014 04:19:34 -0700 (PDT) User-Agent: K-9 Mail for Android In-Reply-To: <20140905110211.GA3208@laptop.bfoster> References: <1409848708-42666-1-git-send-email-bfoster@redhat.com> <20140905004501.GU20518@dastard> <54090C33.2060102@sandeen.net> <20140905012404.GV20518@dastard> <20140905110211.GA3208@laptop.bfoster> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Subject: Re: [PATCH] xfsrestore: use utimensat() to provide atime/mtime with ns resolution From: Greg Freemyer X-ASG-Orig-Subj: Re: [PATCH] xfsrestore: use utimensat() to provide atime/mtime with ns resolution Date: Fri, 05 Sep 2014 07:19:29 -0400 To: Brian Foster ,Dave Chinner CC: Eric Sandeen ,xfs@oss.sgi.com Message-ID: <21bfe93e-aadc-47d9-a49d-ec5207a72d99@email.android.com> X-Barracuda-Connect: mail-qg0-f42.google.com[209.85.192.42] X-Barracuda-Start-Time: 1409915976 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9200 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On September 5, 2014 7:02:12 AM EDT, Brian Foster wrote: >On Fri, Sep 05, 2014 at 11:24:04AM +1000, Dave Chinner wrote: >> On Thu, Sep 04, 2014 at 08:04:51PM -0500, Eric Sandeen wrote: >> > On 9/4/14, 7:45 PM, Dave Chinner wrote: >> > >On Thu, Sep 04, 2014 at 12:38:28PM -0400, Brian Foster wrote: >> > >>xfsdump encodes and stores the full atime and mtime for each file >with >> > >>nanosecond resolution. xfsrestore uses utime() to set the times >of each >> > >>file that is restored. The latter supports resolution of 1 >second, thus >> > >>sub-second timestamp data is lost on restore. >> > > >> > >That doesn't seem like a big deal. What sort of problems does this >> > >actually cause? >> > > >> > >FYI, many linux filesystems only have second resolution timestamps >> > >and hence applications can't rely on sub-second timestamp >resolution >> > >to actually mean anything useful.... >> > >> > But why not restore the same resolution as is actually stored in >the dump? >> > Throwing it away seems odd, and restoring it looks easy enough. >> >> Comes from a time when we couldn't restore what was in the dump. :/ >> >> > In any case, there was a user who noticed & complained. Seems like >a >> > very reasonable thing to fix, to me. >> >> Sure, but we don't make changes with the justification "just >> because". xfsrestore has had this behaviour since dump/restore was >> first introduced, so first we need to understand what the actual >> problem is. Was the user complaining because they noticed they were >> "different" in passing, or was it noticed because the difference is >> the root cause of some other problem? >> > >No problems that I'm aware of. As Eric mentioned, it was noticed during >an evaluation of possible data transfer mechanisms for a glusterfs >setup. The user had to evaluate whether it would lead to any issues (a >geo-replication tracking thing I suspect) for a customer, but I hadn't >heard anything that suggested it was. The utime() call appears to be >obsolete as well, for whatever that's worth. > >Brian During forensic exams, detailed examination of timestamps can be useful. For instance I saw a report recently that timestamps with only milliseconds precision (xxx.yyy00000) are an indication that malware has overridden the timestamp. It seems that the Windows api in particular has a time set mechanism that supports millisecond precision only. Thus xfs backing a samba share would I assume share that same forensic detail. The average breach is not detected until months after the initial penetration, so a xfsrestore between the activity of interest and the time of the investigation is very much a possibility. I don't know if you care about that use case. Greg -- Sent from my Android phone with K-9 Mail. Please excuse my brevity. From stefanrin@gmail.com Fri Sep 5 07:15:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id CB8DC7F3F for ; Fri, 5 Sep 2014 07:15:13 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id B9BE58F8035 for ; Fri, 5 Sep 2014 05:15:10 -0700 (PDT) X-ASG-Debug-ID: 1409919308-04cb6c54ff7e6340001-NocioJ Received: from mail-we0-f171.google.com (mail-we0-f171.google.com [74.125.82.171]) by cuda.sgi.com with ESMTP id zphGMoXNNHppcrVq (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Fri, 05 Sep 2014 05:15:09 -0700 (PDT) X-Barracuda-Envelope-From: stefanrin@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.171 Received: by mail-we0-f171.google.com with SMTP id u56so11804940wes.2 for ; Fri, 05 Sep 2014 05:15:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=6JCnedpCbsKucT31UmMHXCBUP9ZpxDVL9C2lLdYL1Jw=; b=HCp9D5vUtLOkdRs/eerHQfVkPbszgvPegJ5wzoBIKUT4ANqjd1jWXIRYaKDeRogqHr pSIo3M6sMyRZBXmzgEiptqgfH0oja4GR2UXcOEcFV1vOmrdwtWasSYLSvUNR3RQBPNFN 3kW5+czNyM95FhbahxgI9/I4KxbJE3RX+lBt9xjmoUxBAUUoCjqVZnL1NM07GKPdD/O2 ieX+s6Yh8D3QuB6fRix6paNt/AWz/OojgS3sK0i1sglkkBGvUXrPGusBQaBTc6WkPOuk qzePnFMCHVkTSU0ztcf9uGFVV+fESV86l6KRzqzIPekkOu/TMm35bdv+qT5Ny2fFVx0H VULQ== MIME-Version: 1.0 X-Received: by 10.194.176.68 with SMTP id cg4mr2855218wjc.132.1409919303488; Fri, 05 Sep 2014 05:15:03 -0700 (PDT) Received: by 10.194.80.161 with HTTP; Fri, 5 Sep 2014 05:15:03 -0700 (PDT) In-Reply-To: <20140829083738.GD20518@dastard> References: <3dc9caf6f9b415f6e4c0ebac1f1626d3@zbfmail.de> <20140827230732.GN20518@dastard> <20140829083738.GD20518@dastard> Date: Fri, 5 Sep 2014 14:15:03 +0200 Message-ID: Subject: Re: mount options question From: Stefan Ring X-ASG-Orig-Subj: Re: mount options question To: Xfs Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-we0-f171.google.com[74.125.82.171] X-Barracuda-Start-Time: 1409919309 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9201 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 >> Mostly agreed, but using "discard" would be a no-brainer for me. I >> suppose XFS does not automatically switch it on for non-rotational >> storage. > > Yup, you're not using your brain. :P > > mount -o discard *sucks* on so many levels it is not funny. I don't > recommend that anybody *ever* use it, on XFS, ext4 or btrfs. Just > use fstrim if you ever need to clean up a SSD. Good to know, thanks! From bfoster@redhat.com Fri Sep 5 07:31:07 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 9EEB17F3F for ; Fri, 5 Sep 2014 07:31:07 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 2A366AC007 for ; Fri, 5 Sep 2014 05:31:03 -0700 (PDT) X-ASG-Debug-ID: 1409920262-04cbb05485a70990001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id SSw1fr7Xjcowx0ZP (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 05 Sep 2014 05:31:02 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s85CV16b010407 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 5 Sep 2014 08:31:01 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s85CV0RU029584; Fri, 5 Sep 2014 08:31:00 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 3F3F41256F8; Fri, 5 Sep 2014 08:30:59 -0400 (EDT) Date: Fri, 5 Sep 2014 08:30:59 -0400 From: Brian Foster To: Stefan Priebe - Profihost AG Cc: "xfs@oss.sgi.com" Subject: Re: Is XFS suitable for 350 million files on 20TB storage? Message-ID: <20140905123058.GA29710@bfoster.bfoster> X-ASG-Orig-Subj: Re: Is XFS suitable for 350 million files on 20TB storage? References: <540986B1.4080306@profihost.ag> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <540986B1.4080306@profihost.ag> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409920262 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Sep 05, 2014 at 11:47:29AM +0200, Stefan Priebe - Profihost AG wrote: > Hi, > > i have a backup system running 20TB of storage having 350 million files. > This was working fine for month. > > But now the free space is so heavily fragmented that i only see the > kworker with 4x 100% CPU and write speed beeing very slow. 15TB of the > 20TB are in use. > > Overall files are 350 Million - all in different directories. Max 5000 > per dir. > > Kernel is 3.10.53 and mount options are: > noatime,nodiratime,attr2,inode64,logbufs=8,logbsize=256k,noquota > > # xfs_db -r -c freesp /dev/sda1 > from to extents blocks pct > 1 1 29484138 29484138 2,16 > 2 3 16930134 39834672 2,92 > 4 7 16169985 87877159 6,45 > 8 15 78202543 999838327 73,41 > 16 31 3562456 83746085 6,15 > 32 63 2370812 102124143 7,50 > 64 127 280885 18929867 1,39 > 256 511 2 827 0,00 > 512 1023 65 35092 0,00 > 2048 4095 2 6561 0,00 > 16384 32767 1 23951 0,00 > > Is there anything i can optimize? Or is it just a bad idea to do this > with XFS? Any other options? Maybe rsync options like --inplace / > --no-whole-file? > It's probably a good idea to include more information about your fs: http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F ... as well as what your typical workflow/dataset is for this fs. It seems like you have relatively small files (15TB used across 350m files is around 46k per file), yes? If so, I wonder if something like the following commit introduced in 3.12 would help: 133eeb17 xfs: don't use speculative prealloc for small files Brian > Greets, > Stefan > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From s.priebe@profihost.ag Fri Sep 5 07:40:36 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 7EA827F3F for ; Fri, 5 Sep 2014 07:40:36 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id ED874AC001 for ; Fri, 5 Sep 2014 05:40:35 -0700 (PDT) X-ASG-Debug-ID: 1409920833-04cbb05487a70e00001-NocioJ Received: from mail-ph.de-nserver.de (mail-ph.de-nserver.de [85.158.179.214]) by cuda.sgi.com with ESMTP id 2YhsP0qR1jKU4a6O (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 05 Sep 2014 05:40:33 -0700 (PDT) X-Barracuda-Envelope-From: s.priebe@profihost.ag X-Barracuda-Apparent-Source-IP: 85.158.179.214 Received: (qmail 28501 invoked from network); 5 Sep 2014 14:40:32 +0200 X-Fcrdns: No Received: from phoffice.de-nserver.de (HELO [10.11.11.93]) (185.39.223.5) (smtp-auth username hostmaster@profihost.com, mechanism plain) by mail-ph.de-nserver.de (qpsmtpd/0.92) with (ECDHE-RSA-AES256-SHA encrypted) ESMTPSA; Fri, 05 Sep 2014 14:40:32 +0200 Message-ID: <5409AF40.10801@profihost.ag> Date: Fri, 05 Sep 2014 14:40:32 +0200 From: Stefan Priebe - Profihost AG User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0 MIME-Version: 1.0 To: Brian Foster CC: "xfs@oss.sgi.com" Subject: Re: Is XFS suitable for 350 million files on 20TB storage? References: <540986B1.4080306@profihost.ag> <20140905123058.GA29710@bfoster.bfoster> X-ASG-Orig-Subj: Re: Is XFS suitable for 350 million files on 20TB storage? In-Reply-To: <20140905123058.GA29710@bfoster.bfoster> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-User-Auth: Auth by hostmaster@profihost.com through 185.39.223.5 X-Barracuda-Connect: mail-ph.de-nserver.de[85.158.179.214] X-Barracuda-Start-Time: 1409920833 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9202 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 Am 05.09.2014 um 14:30 schrieb Brian Foster: > On Fri, Sep 05, 2014 at 11:47:29AM +0200, Stefan Priebe - Profihost AG wrote: >> Hi, >> >> i have a backup system running 20TB of storage having 350 million files. >> This was working fine for month. >> >> But now the free space is so heavily fragmented that i only see the >> kworker with 4x 100% CPU and write speed beeing very slow. 15TB of the >> 20TB are in use. >> >> Overall files are 350 Million - all in different directories. Max 5000 >> per dir. >> >> Kernel is 3.10.53 and mount options are: >> noatime,nodiratime,attr2,inode64,logbufs=8,logbsize=256k,noquota >> >> # xfs_db -r -c freesp /dev/sda1 >> from to extents blocks pct >> 1 1 29484138 29484138 2,16 >> 2 3 16930134 39834672 2,92 >> 4 7 16169985 87877159 6,45 >> 8 15 78202543 999838327 73,41 >> 16 31 3562456 83746085 6,15 >> 32 63 2370812 102124143 7,50 >> 64 127 280885 18929867 1,39 >> 256 511 2 827 0,00 >> 512 1023 65 35092 0,00 >> 2048 4095 2 6561 0,00 >> 16384 32767 1 23951 0,00 >> >> Is there anything i can optimize? Or is it just a bad idea to do this >> with XFS? Any other options? Maybe rsync options like --inplace / >> --no-whole-file? >> > > It's probably a good idea to include more information about your fs: > > http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F Generally sure but the problem itself is clear. If you look at the free space allocation you see that free space is heavily fragmented. But here you go: - 3.10.53 vanilla - xfs_repair version 3.1.11 - 16 cores - /dev/sda1 /backup xfs rw,noatime,nodiratime,attr2,inode64,logbufs=8,logbsize=256k,noquota 0 0 - Raid 10 with 1GB controller cache running in write back mode using 24 spinners - no lvm - no io waits - xfs_info /serverbackup/ meta-data=/dev/sda1 isize=256 agcount=21, agsize=268435455 blks = sectsz=512 attr=2 data = bsize=4096 blocks=5369232896, imaxpct=5 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 log =internal bsize=4096 blocks=521728, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 anything missing? > ... as well as what your typical workflow/dataset is for this fs. It > seems like you have relatively small files (15TB used across 350m files > is around 46k per file), yes? Yes - most fo them are even smaller. And some files are > 5GB. > If so, I wonder if something like the > following commit introduced in 3.12 would help: > > 133eeb17 xfs: don't use speculative prealloc for small files Looks interesting. Stefan From bfoster@redhat.com Fri Sep 5 08:48:18 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 23CFA7F3F for ; Fri, 5 Sep 2014 08:48:18 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id D996A304062 for ; Fri, 5 Sep 2014 06:48:14 -0700 (PDT) X-ASG-Debug-ID: 1409924893-04bdf01097787980001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id vmDv4oCnhJfZFSb8 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 05 Sep 2014 06:48:13 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s85DmDt7002023 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 5 Sep 2014 09:48:13 -0400 Received: from laptop.bfoster (vpn-61-160.rdu2.redhat.com [10.10.61.160]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s85DmAvd025385 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 5 Sep 2014 09:48:12 -0400 Date: Fri, 5 Sep 2014 09:48:10 -0400 From: Brian Foster To: Stefan Priebe - Profihost AG Cc: "xfs@oss.sgi.com" Subject: Re: Is XFS suitable for 350 million files on 20TB storage? Message-ID: <20140905134810.GA3965@laptop.bfoster> X-ASG-Orig-Subj: Re: Is XFS suitable for 350 million files on 20TB storage? References: <540986B1.4080306@profihost.ag> <20140905123058.GA29710@bfoster.bfoster> <5409AF40.10801@profihost.ag> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5409AF40.10801@profihost.ag> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409924893 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Sep 05, 2014 at 02:40:32PM +0200, Stefan Priebe - Profihost AG wrote: > > Am 05.09.2014 um 14:30 schrieb Brian Foster: > > On Fri, Sep 05, 2014 at 11:47:29AM +0200, Stefan Priebe - Profihost AG wrote: > >> Hi, > >> > >> i have a backup system running 20TB of storage having 350 million files. > >> This was working fine for month. > >> > >> But now the free space is so heavily fragmented that i only see the > >> kworker with 4x 100% CPU and write speed beeing very slow. 15TB of the > >> 20TB are in use. > >> > >> Overall files are 350 Million - all in different directories. Max 5000 > >> per dir. > >> > >> Kernel is 3.10.53 and mount options are: > >> noatime,nodiratime,attr2,inode64,logbufs=8,logbsize=256k,noquota > >> > >> # xfs_db -r -c freesp /dev/sda1 > >> from to extents blocks pct > >> 1 1 29484138 29484138 2,16 > >> 2 3 16930134 39834672 2,92 > >> 4 7 16169985 87877159 6,45 > >> 8 15 78202543 999838327 73,41 > >> 16 31 3562456 83746085 6,15 > >> 32 63 2370812 102124143 7,50 > >> 64 127 280885 18929867 1,39 > >> 256 511 2 827 0,00 > >> 512 1023 65 35092 0,00 > >> 2048 4095 2 6561 0,00 > >> 16384 32767 1 23951 0,00 > >> > >> Is there anything i can optimize? Or is it just a bad idea to do this > >> with XFS? Any other options? Maybe rsync options like --inplace / > >> --no-whole-file? > >> > > > > It's probably a good idea to include more information about your fs: > > > > http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F > > Generally sure but the problem itself is clear. If you look at the free > space allocation you see that free space is heavily fragmented. > > But here you go: > - 3.10.53 vanilla > - xfs_repair version 3.1.11 > - 16 cores > - /dev/sda1 /backup xfs > rw,noatime,nodiratime,attr2,inode64,logbufs=8,logbsize=256k,noquota 0 0 > - Raid 10 with 1GB controller cache running in write back mode using 24 > spinners > - no lvm > - no io waits > - xfs_info /serverbackup/ > meta-data=/dev/sda1 isize=256 agcount=21, > agsize=268435455 blks > = sectsz=512 attr=2 > data = bsize=4096 blocks=5369232896, imaxpct=5 > = sunit=0 swidth=0 blks > naming =version 2 bsize=4096 ascii-ci=0 > log =internal bsize=4096 blocks=521728, version=2 > = sectsz=512 sunit=0 blks, lazy-count=1 > realtime =none extsz=4096 blocks=0, rtextents=0 > > anything missing? > What's the workload to the fs? Is it repeated rsync's from a constantly changing dataset? Do the files change frequently or are they only ever added/removed? Also, what is the characterization of writes being "slow?" An rsync is slower than normal? Sustained writes to a single file? How significant a degradation? Something like the following might be interesting as well: for i in $(seq 0 20); do xfs_db -c "agi $i" -c "p freecount" ; done Brian > > ... as well as what your typical workflow/dataset is for this fs. It > > seems like you have relatively small files (15TB used across 350m files > > is around 46k per file), yes? > > Yes - most fo them are even smaller. And some files are > 5GB. > > > If so, I wonder if something like the > > following commit introduced in 3.12 would help: > > > > 133eeb17 xfs: don't use speculative prealloc for small files > > Looks interesting. > > Stefan From s.priebe@profihost.ag Fri Sep 5 13:07:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 82E5D7F3F for ; Fri, 5 Sep 2014 13:07:40 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 1FB65AC001 for ; Fri, 5 Sep 2014 11:07:36 -0700 (PDT) X-ASG-Debug-ID: 1409940453-04bdf0109a793490001-NocioJ Received: from mail-ph.de-nserver.de (mail-ph.de-nserver.de [85.158.179.214]) by cuda.sgi.com with ESMTP id cxSA6aUlbHVtD5fC (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 05 Sep 2014 11:07:34 -0700 (PDT) X-Barracuda-Envelope-From: s.priebe@profihost.ag X-Barracuda-Apparent-Source-IP: 85.158.179.214 Received: (qmail 25751 invoked from network); 5 Sep 2014 20:07:32 +0200 X-Fcrdns: No Received: from phoffice.de-nserver.de (HELO [10.242.2.6]) (185.39.223.5) (smtp-auth username s.priebe@profihost.ag, mechanism plain) by mail-ph.de-nserver.de (qpsmtpd/0.92) with (ECDHE-RSA-AES256-SHA encrypted) ESMTPSA; Fri, 05 Sep 2014 20:07:32 +0200 Message-ID: <5409FBEA.9050708@profihost.ag> Date: Fri, 05 Sep 2014 20:07:38 +0200 From: Stefan Priebe User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Brian Foster CC: "xfs@oss.sgi.com" Subject: Re: Is XFS suitable for 350 million files on 20TB storage? References: <540986B1.4080306@profihost.ag> <20140905123058.GA29710@bfoster.bfoster> <5409AF40.10801@profihost.ag> <20140905134810.GA3965@laptop.bfoster> X-ASG-Orig-Subj: Re: Is XFS suitable for 350 million files on 20TB storage? In-Reply-To: <20140905134810.GA3965@laptop.bfoster> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-User-Auth: Auth by s.priebe@profihost.ag through 185.39.223.5 X-Barracuda-Connect: mail-ph.de-nserver.de[85.158.179.214] X-Barracuda-Start-Time: 1409940454 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9209 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 Hi, Am 05.09.2014 15:48, schrieb Brian Foster: > On Fri, Sep 05, 2014 at 02:40:32PM +0200, Stefan Priebe - Profihost AG wrote: >> >> Am 05.09.2014 um 14:30 schrieb Brian Foster: >>> On Fri, Sep 05, 2014 at 11:47:29AM +0200, Stefan Priebe - Profihost AG wrote: >>>> Hi, >>>> >>>> i have a backup system running 20TB of storage having 350 million files. >>>> This was working fine for month. >>>> >>>> But now the free space is so heavily fragmented that i only see the >>>> kworker with 4x 100% CPU and write speed beeing very slow. 15TB of the >>>> 20TB are in use. >>>> >>>> Overall files are 350 Million - all in different directories. Max 5000 >>>> per dir. >>>> >>>> Kernel is 3.10.53 and mount options are: >>>> noatime,nodiratime,attr2,inode64,logbufs=8,logbsize=256k,noquota >>>> >>>> # xfs_db -r -c freesp /dev/sda1 >>>> from to extents blocks pct >>>> 1 1 29484138 29484138 2,16 >>>> 2 3 16930134 39834672 2,92 >>>> 4 7 16169985 87877159 6,45 >>>> 8 15 78202543 999838327 73,41 >>>> 16 31 3562456 83746085 6,15 >>>> 32 63 2370812 102124143 7,50 >>>> 64 127 280885 18929867 1,39 >>>> 256 511 2 827 0,00 >>>> 512 1023 65 35092 0,00 >>>> 2048 4095 2 6561 0,00 >>>> 16384 32767 1 23951 0,00 >>>> >>>> Is there anything i can optimize? Or is it just a bad idea to do this >>>> with XFS? Any other options? Maybe rsync options like --inplace / >>>> --no-whole-file? >>>> >>> >>> It's probably a good idea to include more information about your fs: >>> >>> http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F >> >> Generally sure but the problem itself is clear. If you look at the free >> space allocation you see that free space is heavily fragmented. >> >> But here you go: >> - 3.10.53 vanilla >> - xfs_repair version 3.1.11 >> - 16 cores >> - /dev/sda1 /backup xfs >> rw,noatime,nodiratime,attr2,inode64,logbufs=8,logbsize=256k,noquota 0 0 >> - Raid 10 with 1GB controller cache running in write back mode using 24 >> spinners >> - no lvm >> - no io waits >> - xfs_info /serverbackup/ >> meta-data=/dev/sda1 isize=256 agcount=21, >> agsize=268435455 blks >> = sectsz=512 attr=2 >> data = bsize=4096 blocks=5369232896, imaxpct=5 >> = sunit=0 swidth=0 blks >> naming =version 2 bsize=4096 ascii-ci=0 >> log =internal bsize=4096 blocks=521728, version=2 >> = sectsz=512 sunit=0 blks, lazy-count=1 >> realtime =none extsz=4096 blocks=0, rtextents=0 >> >> anything missing? >> > > What's the workload to the fs? Is it repeated rsync's from a constantly > changing dataset? Do the files change frequently or are they only ever > added/removed? Yes it repeated rsync with constant changing files. About 10-20% of all files every week. A mixture of changing, removing / adding. > Also, what is the characterization of writes being "slow?" An rsync is > slower than normal? Sustained writes to a single file? How significant a > degradation? kworker is using all cpu while writing data to this xfs partition. rsync can just write at a rate of 32-128kb/s. > Something like the following might be interesting as well: > for i in $(seq 0 20); do xfs_db -c "agi $i" -c "p freecount" ; done freecount = 3189417 freecount = 1975726 freecount = 1309903 freecount = 1726846 freecount = 1271047 freecount = 1281956 freecount = 1571285 freecount = 1365473 freecount = 1238118 freecount = 1697011 freecount = 1000832 freecount = 1369791 freecount = 1706360 freecount = 1439165 freecount = 1656404 freecount = 1881762 freecount = 1593432 freecount = 1555909 freecount = 1197091 freecount = 1667467 freecount = 63 Thanks! Stefan > Brian > >>> ... as well as what your typical workflow/dataset is for this fs. It >>> seems like you have relatively small files (15TB used across 350m files >>> is around 46k per file), yes? >> >> Yes - most fo them are even smaller. And some files are > 5GB. >> >>> If so, I wonder if something like the >>> following commit introduced in 3.12 would help: >>> >>> 133eeb17 xfs: don't use speculative prealloc for small files >> >> Looks interesting. >> >> Stefan From bfoster@redhat.com Fri Sep 5 14:18:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 47BAA7F3F for ; Fri, 5 Sep 2014 14:18:25 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 0AF09304053 for ; Fri, 5 Sep 2014 12:18:21 -0700 (PDT) X-ASG-Debug-ID: 1409944700-04bdf01097795d80001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id WzXPihWq4e090QW7 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 05 Sep 2014 12:18:20 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s85JIJal017100 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 5 Sep 2014 15:18:19 -0400 Received: from laptop.bfoster (vpn-61-160.rdu2.redhat.com [10.10.61.160]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s85JIGeA014257 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 5 Sep 2014 15:18:18 -0400 Date: Fri, 5 Sep 2014 15:18:16 -0400 From: Brian Foster To: Stefan Priebe Cc: "xfs@oss.sgi.com" Subject: Re: Is XFS suitable for 350 million files on 20TB storage? Message-ID: <20140905191815.GB8400@laptop.bfoster> X-ASG-Orig-Subj: Re: Is XFS suitable for 350 million files on 20TB storage? References: <540986B1.4080306@profihost.ag> <20140905123058.GA29710@bfoster.bfoster> <5409AF40.10801@profihost.ag> <20140905134810.GA3965@laptop.bfoster> <5409FBEA.9050708@profihost.ag> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5409FBEA.9050708@profihost.ag> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409944700 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Sep 05, 2014 at 08:07:38PM +0200, Stefan Priebe wrote: > Hi, > > Am 05.09.2014 15:48, schrieb Brian Foster: > >On Fri, Sep 05, 2014 at 02:40:32PM +0200, Stefan Priebe - Profihost AG wrote: > >> > >>Am 05.09.2014 um 14:30 schrieb Brian Foster: > >>>On Fri, Sep 05, 2014 at 11:47:29AM +0200, Stefan Priebe - Profihost AG wrote: > >>>>Hi, > >>>> > >>>>i have a backup system running 20TB of storage having 350 million files. > >>>>This was working fine for month. > >>>> > >>>>But now the free space is so heavily fragmented that i only see the > >>>>kworker with 4x 100% CPU and write speed beeing very slow. 15TB of the > >>>>20TB are in use. > >>>> > >>>>Overall files are 350 Million - all in different directories. Max 5000 > >>>>per dir. > >>>> > >>>>Kernel is 3.10.53 and mount options are: > >>>>noatime,nodiratime,attr2,inode64,logbufs=8,logbsize=256k,noquota > >>>> > >>>># xfs_db -r -c freesp /dev/sda1 > >>>> from to extents blocks pct > >>>> 1 1 29484138 29484138 2,16 > >>>> 2 3 16930134 39834672 2,92 > >>>> 4 7 16169985 87877159 6,45 > >>>> 8 15 78202543 999838327 73,41 > >>>> 16 31 3562456 83746085 6,15 > >>>> 32 63 2370812 102124143 7,50 > >>>> 64 127 280885 18929867 1,39 > >>>> 256 511 2 827 0,00 > >>>> 512 1023 65 35092 0,00 > >>>> 2048 4095 2 6561 0,00 > >>>> 16384 32767 1 23951 0,00 > >>>> > >>>>Is there anything i can optimize? Or is it just a bad idea to do this > >>>>with XFS? Any other options? Maybe rsync options like --inplace / > >>>>--no-whole-file? > >>>> > >>> > >>>It's probably a good idea to include more information about your fs: > >>> > >>>http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F > >> > >>Generally sure but the problem itself is clear. If you look at the free > >>space allocation you see that free space is heavily fragmented. > >> > >>But here you go: > >>- 3.10.53 vanilla > >>- xfs_repair version 3.1.11 > >>- 16 cores > >>- /dev/sda1 /backup xfs > >>rw,noatime,nodiratime,attr2,inode64,logbufs=8,logbsize=256k,noquota 0 0 > >>- Raid 10 with 1GB controller cache running in write back mode using 24 > >>spinners > >>- no lvm > >>- no io waits > >>- xfs_info /serverbackup/ > >>meta-data=/dev/sda1 isize=256 agcount=21, > >>agsize=268435455 blks > >> = sectsz=512 attr=2 > >>data = bsize=4096 blocks=5369232896, imaxpct=5 > >> = sunit=0 swidth=0 blks > >>naming =version 2 bsize=4096 ascii-ci=0 > >>log =internal bsize=4096 blocks=521728, version=2 > >> = sectsz=512 sunit=0 blks, lazy-count=1 > >>realtime =none extsz=4096 blocks=0, rtextents=0 > >> > >>anything missing? > >> > > > >What's the workload to the fs? Is it repeated rsync's from a constantly > >changing dataset? Do the files change frequently or are they only ever > >added/removed? > > Yes it repeated rsync with constant changing files. About 10-20% of all > files every week. A mixture of changing, removing / adding. > Ok. > >Also, what is the characterization of writes being "slow?" An rsync is > >slower than normal? Sustained writes to a single file? How significant a > >degradation? > > kworker is using all cpu while writing data to this xfs partition. rsync can > just write at a rate of 32-128kb/s. > Do you have a baseline? This seems highly subjective. By that I mean this could be slower for copying a lot of little files, faster if you happen to copy a single large file, etc. > >Something like the following might be interesting as well: > >for i in $(seq 0 20); do xfs_db -c "agi $i" -c "p freecount" ; done > freecount = 3189417 > freecount = 1975726 > freecount = 1309903 > freecount = 1726846 > freecount = 1271047 > freecount = 1281956 > freecount = 1571285 > freecount = 1365473 > freecount = 1238118 > freecount = 1697011 > freecount = 1000832 > freecount = 1369791 > freecount = 1706360 > freecount = 1439165 > freecount = 1656404 > freecount = 1881762 > freecount = 1593432 > freecount = 1555909 > freecount = 1197091 > freecount = 1667467 > freecount = 63 > Interesting, that seems like a lot of free inodes. That's 1-2 million in each AG that we have to look around for each time we want to allocate an inode. I can't say for sure that's the source of the slowdown, but this certainly looks like the kind of workload that inspired the addition of the free inode btree (finobt) to more recent kernels. It appears that you still have quite a bit of space available in general. Could you run some local tests on this filesystem to try and quantify how much of this degradation manifests on sustained writes vs. file creation? For example, how is throughput when writing a few GB to a local test file? How about with that same amount of data broken up across a few thousand files? Brian P.S., Alternatively if you wanted to grab a metadump of this filesystem and compress/upload it somewhere, I'd be interested to take a look at it. > Thanks! > > Stefan > > > > >Brian > > > >>>... as well as what your typical workflow/dataset is for this fs. It > >>>seems like you have relatively small files (15TB used across 350m files > >>>is around 46k per file), yes? > >> > >>Yes - most fo them are even smaller. And some files are > 5GB. > >> > >>>If so, I wonder if something like the > >>>following commit introduced in 3.12 would help: > >>> > >>>133eeb17 xfs: don't use speculative prealloc for small files > >> > >>Looks interesting. > >> > >>Stefan From s.priebe@profihost.ag Fri Sep 5 15:14:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id DD5A57F3F for ; Fri, 5 Sep 2014 15:14:52 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id A13FF8F804C for ; Fri, 5 Sep 2014 13:14:52 -0700 (PDT) X-ASG-Debug-ID: 1409948086-04bdf01097798550001-NocioJ Received: from mail-ph.de-nserver.de (mail-ph.de-nserver.de [85.158.179.214]) by cuda.sgi.com with ESMTP id J1F1oyQZ28pPO99X (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 05 Sep 2014 13:14:47 -0700 (PDT) X-Barracuda-Envelope-From: s.priebe@profihost.ag X-Barracuda-Apparent-Source-IP: 85.158.179.214 Received: (qmail 9276 invoked from network); 5 Sep 2014 22:14:45 +0200 X-Fcrdns: No Received: from phoffice.de-nserver.de (HELO [10.242.2.10]) (185.39.223.5) (smtp-auth username s.priebe@profihost.ag, mechanism plain) by mail-ph.de-nserver.de (qpsmtpd/0.92) with (ECDHE-RSA-AES256-SHA encrypted) ESMTPSA; Fri, 05 Sep 2014 22:14:45 +0200 Message-ID: <540A19BB.8040404@profihost.ag> Date: Fri, 05 Sep 2014 22:14:51 +0200 From: Stefan Priebe User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Brian Foster CC: "xfs@oss.sgi.com" Subject: Re: Is XFS suitable for 350 million files on 20TB storage? References: <540986B1.4080306@profihost.ag> <20140905123058.GA29710@bfoster.bfoster> <5409AF40.10801@profihost.ag> <20140905134810.GA3965@laptop.bfoster> <5409FBEA.9050708@profihost.ag> <20140905191815.GB8400@laptop.bfoster> X-ASG-Orig-Subj: Re: Is XFS suitable for 350 million files on 20TB storage? In-Reply-To: <20140905191815.GB8400@laptop.bfoster> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-User-Auth: Auth by s.priebe@profihost.ag through 185.39.223.5 X-Barracuda-Connect: mail-ph.de-nserver.de[85.158.179.214] X-Barracuda-Start-Time: 1409948087 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9212 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Am 05.09.2014 21:18, schrieb Brian Foster: ... > On Fri, Sep 05, 2014 at 08:07:38PM +0200, Stefan Priebe wrote: > Interesting, that seems like a lot of free inodes. That's 1-2 million in > each AG that we have to look around for each time we want to allocate an > inode. I can't say for sure that's the source of the slowdown, but this > certainly looks like the kind of workload that inspired the addition of > the free inode btree (finobt) to more recent kernels. > > It appears that you still have quite a bit of space available in > general. Could you run some local tests on this filesystem to try and > quantify how much of this degradation manifests on sustained writes vs. > file creation? For example, how is throughput when writing a few GB to a > local test file? Not sure if this is what you expect: # dd if=/dev/zero of=bigfile oflag=direct,sync bs=4M count=1000 1000+0 records in 1000+0 records out 4194304000 bytes (4,2 GB) copied, 125,809 s, 33,3 MB/s or without sync # dd if=/dev/zero of=bigfile oflag=direct bs=4M count=1000 1000+0 records in 1000+0 records out 4194304000 bytes (4,2 GB) copied, 32,5474 s, 129 MB/s > How about with that same amount of data broken up > across a few thousand files? This results in heavy kworker usage. 4GB in 32kb files # time (mkdir test; for i in $(seq 1 1 131072); do dd if=/dev/zero of=test/$i bs=32k count=1 oflag=direct,sync 2>/dev/null; done) ... 55 min > Brian > > P.S., Alternatively if you wanted to grab a metadump of this filesystem > and compress/upload it somewhere, I'd be interested to take a look at > it. I think there might be file and directory names in it. If this is the case i can't do it. Stefan > >> Thanks! >> >> Stefan >> >> >> >>> Brian >>> >>>>> ... as well as what your typical workflow/dataset is for this fs. It >>>>> seems like you have relatively small files (15TB used across 350m files >>>>> is around 46k per file), yes? >>>> >>>> Yes - most fo them are even smaller. And some files are > 5GB. >>>> >>>>> If so, I wonder if something like the >>>>> following commit introduced in 3.12 would help: >>>>> >>>>> 133eeb17 xfs: don't use speculative prealloc for small files >>>> >>>> Looks interesting. >>>> >>>> Stefan From bfoster@redhat.com Fri Sep 5 16:24:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 6CC777F3F for ; Fri, 5 Sep 2014 16:24:13 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 5C0B08F8049 for ; Fri, 5 Sep 2014 14:24:10 -0700 (PDT) X-ASG-Debug-ID: 1409952245-04cb6c55007fac90001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id rPvCvGQrKUvnlDCB (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 05 Sep 2014 14:24:06 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s85LO38f028319 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 5 Sep 2014 17:24:04 -0400 Received: from laptop.bfoster (vpn-61-160.rdu2.redhat.com [10.10.61.160]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s85LO1JI012511 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 5 Sep 2014 17:24:03 -0400 Date: Fri, 5 Sep 2014 17:24:01 -0400 From: Brian Foster To: Stefan Priebe Cc: "xfs@oss.sgi.com" Subject: Re: Is XFS suitable for 350 million files on 20TB storage? Message-ID: <20140905212400.GA8904@laptop.bfoster> X-ASG-Orig-Subj: Re: Is XFS suitable for 350 million files on 20TB storage? References: <540986B1.4080306@profihost.ag> <20140905123058.GA29710@bfoster.bfoster> <5409AF40.10801@profihost.ag> <20140905134810.GA3965@laptop.bfoster> <5409FBEA.9050708@profihost.ag> <20140905191815.GB8400@laptop.bfoster> <540A19BB.8040404@profihost.ag> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <540A19BB.8040404@profihost.ag> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409952246 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Sep 05, 2014 at 10:14:51PM +0200, Stefan Priebe wrote: > > Am 05.09.2014 21:18, schrieb Brian Foster: > ... > > >On Fri, Sep 05, 2014 at 08:07:38PM +0200, Stefan Priebe wrote: > >Interesting, that seems like a lot of free inodes. That's 1-2 million in > >each AG that we have to look around for each time we want to allocate an > >inode. I can't say for sure that's the source of the slowdown, but this > >certainly looks like the kind of workload that inspired the addition of > >the free inode btree (finobt) to more recent kernels. > > > >It appears that you still have quite a bit of space available in > >general. Could you run some local tests on this filesystem to try and > >quantify how much of this degradation manifests on sustained writes vs. > >file creation? For example, how is throughput when writing a few GB to a > >local test file? > > Not sure if this is what you expect: > > # dd if=/dev/zero of=bigfile oflag=direct,sync bs=4M count=1000 > 1000+0 records in > 1000+0 records out > 4194304000 bytes (4,2 GB) copied, 125,809 s, 33,3 MB/s > > or without sync > # dd if=/dev/zero of=bigfile oflag=direct bs=4M count=1000 > 1000+0 records in > 1000+0 records out > 4194304000 bytes (4,2 GB) copied, 32,5474 s, 129 MB/s > > > How about with that same amount of data broken up > >across a few thousand files? > > This results in heavy kworker usage. > > 4GB in 32kb files > # time (mkdir test; for i in $(seq 1 1 131072); do dd if=/dev/zero > of=test/$i bs=32k count=1 oflag=direct,sync 2>/dev/null; done) > > ... > > 55 min > Both seem pretty slow in general. Any way you can establish a baseline for these tests on this storage? If not, the only other suggestion I could make is to allocate inodes until all of those freecount numbers are accounted for and see if anything changes. That could certainly take some time and it's not clear it will actually help. > >Brian > > > >P.S., Alternatively if you wanted to grab a metadump of this filesystem > >and compress/upload it somewhere, I'd be interested to take a look at > >it. > > I think there might be file and directory names in it. If this is the case i > can't do it. > It should enable obfuscation by default, but I would suggest to restore it yourself and verify it meets your expectations. Brian > Stefan > > > > > >>Thanks! > >> > >>Stefan > >> > >> > >> > >>>Brian > >>> > >>>>>... as well as what your typical workflow/dataset is for this fs. It > >>>>>seems like you have relatively small files (15TB used across 350m files > >>>>>is around 46k per file), yes? > >>>> > >>>>Yes - most fo them are even smaller. And some files are > 5GB. > >>>> > >>>>>If so, I wonder if something like the > >>>>>following commit introduced in 3.12 would help: > >>>>> > >>>>>133eeb17 xfs: don't use speculative prealloc for small files > >>>> > >>>>Looks interesting. > >>>> > >>>>Stefan > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From scaron@umich.edu Fri Sep 5 17:39:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id EEC9A7F3F for ; Fri, 5 Sep 2014 17:39:45 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id B05DA30406A for ; Fri, 5 Sep 2014 15:39:45 -0700 (PDT) X-ASG-Debug-ID: 1409956782-04bdf010a179d6d0001-NocioJ Received: from mail-qc0-f175.google.com (mail-qc0-f175.google.com [209.85.216.175]) by cuda.sgi.com with ESMTP id B5tQk8OUzx1NzM6y (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Fri, 05 Sep 2014 15:39:43 -0700 (PDT) X-Barracuda-Envelope-From: scaron@umich.edu X-Barracuda-Apparent-Source-IP: 209.85.216.175 Received: by mail-qc0-f175.google.com with SMTP id c9so13004326qcz.20 for ; Fri, 05 Sep 2014 15:39:42 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=CNlyq4CAgIxpermYifourtgtMIjk1FgmHrZy1YJRLQw=; b=m+SqFVMfCTDo3c18FnzClL7RxBK+RQy55+kMG7QHjg78+ZfQqJd9h15fSSh0MNxj/2 2YhrkTIjIFROqL/DobiVlFh7fgweGAVTiiK7PR9xMmlurotY0d1R4nI2ZTPq0TwGogLO +PLGKOmAz9D/wZdAQAiqJTR1qVitj8Zb0q96J5d9Jx1WwI9fmHOBAuzactWv1Q5/Vo4G IHWxgJAaQ2YTVqENII6pTT6u8BaFxlvzP6zfl8H94B1aGDXRu6L7dytJWVuPMJmc4W7t 7zXH7eRK0UL01vjyW4UxhShULr0gFj8BQ2zIObPfrs334QUDmJlg0RJ9BMnNMy8PsNeW DFOQ== X-Gm-Message-State: ALoCoQkPKGckVUd6lR7/Z4Wcqz54fhy0Cwk09lbNGiesWi/MMX9r5MoOmN8OO8l5iAECImcrm0g2 MIME-Version: 1.0 X-Received: by 10.224.46.138 with SMTP id j10mr22738202qaf.85.1409956782408; Fri, 05 Sep 2014 15:39:42 -0700 (PDT) Received: by 10.224.8.132 with HTTP; Fri, 5 Sep 2014 15:39:42 -0700 (PDT) In-Reply-To: <20140905212400.GA8904@laptop.bfoster> References: <540986B1.4080306@profihost.ag> <20140905123058.GA29710@bfoster.bfoster> <5409AF40.10801@profihost.ag> <20140905134810.GA3965@laptop.bfoster> <5409FBEA.9050708@profihost.ag> <20140905191815.GB8400@laptop.bfoster> <540A19BB.8040404@profihost.ag> <20140905212400.GA8904@laptop.bfoster> Date: Fri, 5 Sep 2014 18:39:42 -0400 Message-ID: Subject: Re: Is XFS suitable for 350 million files on 20TB storage? From: Sean Caron X-ASG-Orig-Subj: Re: Is XFS suitable for 350 million files on 20TB storage? To: Brian Foster , Sean Caron Cc: Stefan Priebe , "xfs@oss.sgi.com" Content-Type: multipart/alternative; boundary=001a11c1f0da2a1c3e05025925d2 X-Barracuda-Connect: mail-qc0-f175.google.com[209.85.216.175] X-Barracuda-Start-Time: 1409956782 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9215 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message --001a11c1f0da2a1c3e05025925d2 Content-Type: text/plain; charset=UTF-8 Hi Stefan, Generally speaking, this is a situation that you want to avoid. At 350 million files and 20 TB, you're looking at around 17-18 MB per file at minimum? That's pretty small. And with 350M files, a fair number of those 350M must be on the smaller side of things. Memory is cheap these days... people can make 50 GB, 100 GB, ... files, go ahead and read those things directly into memory, 100%. And CPU cycles are pretty cheap, too. Certainly you get more bang per buck there, than in IOPS on your storage system!! Empirically, I have found from experience (currently running Linux 3.4.61; many historical revs previous) in a reasonably large-scale (up to ~0.5 PB in single file system, up to 270 JBOD spindles on one machine) high-I/O (jobs running on a few-hundred-node compute cluster, or a few hundred threads running locally on the server) environment, that XFS (and things running on top of it, ESPECIALLY rsync) will perform MUCH better on smaller numbers of very large files, then they will on very large numbers of small files (I'm always trying to reinforce this to our end users). I'm not really even saying XFS is to really blame here... in fact in 3.4.61 it has been very well-behaved; but Linux has many warts: poor implementation of I/O and CPU scheduling algorithms; kernel does not degrade gracefully in resource-constrained settings; if you are ultimately using this data store as a file share, the protocol implementations have their own issues... NFS, CIFS, etc... Not trying to dog all the hardworking free software devs out there but clearly much work remains to be done in many areas, to make Linux really ready to play in the "big big leagues" of computing (unless you have a local staff of good systems programmers with some free time on their hands...). XFS is just one piece of the puzzle we have to work with in trying to integrate a Linux system as a good high-throughput storage machine. If there is any way that you can use simple catenation or some kind of archiver... even things as simple as shar, tar, zip... to get the file sizes up and the absolute number of files down, you should notice some big performance gains when trying to process your 20 TB worth of stuff. If you can't dramatically increase individual file size while dramatically reducing the absolute number of files for whatever reason in your environment, I think you can still win by trying to reduce the number of files in any one directory. You want to look out for directories that have five or six figures worth of files in them, those can be real performance killers. If your claim of no more than 5,000 files per any directory is accurate, that shouldn't be a big deal for XFS at all, I don't think you're in bad shape there. Rsync can be just the worst in this kind of scenario. It runs so slow, you feel sometimes like you might as well be on 10 Meg Ethernet (or worse). I'm not sure exactly what your application is here... It sounds backup related. If you're doing rsync, you can win a little bit by dropping down a level or two in your directory hierarchy from the top of the tree where XFS is mounted, and running a number of rsync threads in parallel, per-directory, instead of just one top-level rsync thread for an entire filesystem. Experiment to find the best number of threads; run too many and they can deadlock, or just step all over one another. Also, I have a suspicion (sorry can't back this up quantitatively) that if you are just trying to a straight copy from here to there, a 'cp -Rp' will be faster than an rsync. You might be better off doing an initial copy with 'cp -Rp' and then just synchronizing diffs at the end with an rsync pass, rather than trying to do the whole thing with rsync. Hope some of this might help... just casual thoughts from a daily XFS-wrangler ;) Best, Sean On Fri, Sep 5, 2014 at 5:24 PM, Brian Foster wrote: > On Fri, Sep 05, 2014 at 10:14:51PM +0200, Stefan Priebe wrote: > > > > Am 05.09.2014 21:18, schrieb Brian Foster: > > ... > > > > >On Fri, Sep 05, 2014 at 08:07:38PM +0200, Stefan Priebe wrote: > > >Interesting, that seems like a lot of free inodes. That's 1-2 million in > > >each AG that we have to look around for each time we want to allocate an > > >inode. I can't say for sure that's the source of the slowdown, but this > > >certainly looks like the kind of workload that inspired the addition of > > >the free inode btree (finobt) to more recent kernels. > > > > > >It appears that you still have quite a bit of space available in > > >general. Could you run some local tests on this filesystem to try and > > >quantify how much of this degradation manifests on sustained writes vs. > > >file creation? For example, how is throughput when writing a few GB to a > > >local test file? > > > > Not sure if this is what you expect: > > > > # dd if=/dev/zero of=bigfile oflag=direct,sync bs=4M count=1000 > > 1000+0 records in > > 1000+0 records out > > 4194304000 bytes (4,2 GB) copied, 125,809 s, 33,3 MB/s > > > > or without sync > > # dd if=/dev/zero of=bigfile oflag=direct bs=4M count=1000 > > 1000+0 records in > > 1000+0 records out > > 4194304000 bytes (4,2 GB) copied, 32,5474 s, 129 MB/s > > > > > How about with that same amount of data broken up > > >across a few thousand files? > > > > This results in heavy kworker usage. > > > > 4GB in 32kb files > > # time (mkdir test; for i in $(seq 1 1 131072); do dd if=/dev/zero > > of=test/$i bs=32k count=1 oflag=direct,sync 2>/dev/null; done) > > > > ... > > > > 55 min > > > > Both seem pretty slow in general. Any way you can establish a baseline > for these tests on this storage? If not, the only other suggestion I > could make is to allocate inodes until all of those freecount numbers > are accounted for and see if anything changes. That could certainly take > some time and it's not clear it will actually help. > > > >Brian > > > > > >P.S., Alternatively if you wanted to grab a metadump of this filesystem > > >and compress/upload it somewhere, I'd be interested to take a look at > > >it. > > > > I think there might be file and directory names in it. If this is the > case i > > can't do it. > > > > It should enable obfuscation by default, but I would suggest to restore > it yourself and verify it meets your expectations. > > Brian > > > Stefan > > > > > > > > > >>Thanks! > > >> > > >>Stefan > > >> > > >> > > >> > > >>>Brian > > >>> > > >>>>>... as well as what your typical workflow/dataset is for this fs. It > > >>>>>seems like you have relatively small files (15TB used across 350m > files > > >>>>>is around 46k per file), yes? > > >>>> > > >>>>Yes - most fo them are even smaller. And some files are > 5GB. > > >>>> > > >>>>>If so, I wonder if something like the > > >>>>>following commit introduced in 3.12 would help: > > >>>>> > > >>>>>133eeb17 xfs: don't use speculative prealloc for small files > > >>>> > > >>>>Looks interesting. > > >>>> > > >>>>Stefan > > > > _______________________________________________ > > xfs mailing list > > xfs@oss.sgi.com > > http://oss.sgi.com/mailman/listinfo/xfs > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs > --001a11c1f0da2a1c3e05025925d2 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi Stefan,

Generally speaking, th= is is a situation that you want to avoid. At 350 million files and 20 TB, y= ou're looking at around 17-18 MB per file at minimum? That's pretty= small. And with 350M files, a fair number of those 350M must be on the sma= ller side of things.

Memory is cheap these days... peopl= e can make 50 GB, 100 GB, ... files, go ahead and read those things directl= y into memory, 100%. And CPU cycles are pretty cheap, too. Certainly you ge= t more bang per buck there, than in IOPS on your storage system!!

Empirically, I have found from experience (currently runnin= g Linux 3.4.61; many historical revs previous) in a reasonably large-scale = (up to ~0.5 PB in single file system, up to 270 JBOD spindles on one machin= e) high-I/O (jobs running on a few-hundred-node compute cluster, or a few h= undred threads running locally on the server) environment, that XFS (and th= ings running on top of it, ESPECIALLY rsync) will perform MUCH better on sm= aller numbers of very large files, then they will on very large numbers of = small files (I'm always trying to reinforce this to our end users).

I'm not really even saying XFS is to really blame= here... in fact in 3.4.61 it has been very well-behaved; but Linux has man= y warts: poor implementation of I/O and CPU scheduling algorithms; kernel d= oes not degrade gracefully in resource-constrained settings; if you are ult= imately using this data store as a file share, the protocol implementations= have their own issues... NFS, CIFS, etc... Not trying to dog all the hardw= orking free software devs out there but clearly much work remains to be don= e in many areas, to make Linux really ready to play in the "big big le= agues" of computing (unless you have a local staff of good systems pro= grammers with some free time on their hands...). XFS is just one piece of t= he puzzle we have to work with in trying to integrate a Linux system as a g= ood high-throughput storage machine.

If there is a= ny way that you can use simple catenation or some kind of archiver... even = things as simple as shar, tar, zip... to get the file sizes up and the abso= lute number of files down, you should notice some big performance gains whe= n trying to process your 20 TB worth of stuff.

If = you can't dramatically increase individual file size while dramatically= reducing the absolute number of files for whatever reason in your environm= ent, I think you can still win by trying to reduce the number of files in a= ny one directory. You want to look out for directories that have five or si= x figures worth of files in them, those can be real performance killers. If= your claim of no more than 5,000 files per any directory is accurate, that= shouldn't be a big deal for XFS at all, I don't think you're i= n bad shape there.

Rsync can be just the worst in = this kind of scenario. It runs so slow, you feel sometimes like you might a= s well be on 10 Meg Ethernet (or worse).

I'm n= ot sure exactly what your application is here... It sounds backup related. = If you're doing rsync, you can win a little bit by dropping down a leve= l or two in your directory hierarchy from the top of the tree where XFS is = mounted, and running a number of rsync threads in parallel, per-directory, = instead of just one top-level rsync thread for an entire filesystem. Experi= ment to find the best number of threads; run too many and they can deadlock= , or just step all over one another.

Also, I have = a suspicion (sorry can't back this up quantitatively) that if you are j= ust trying to a straight copy from here to there, a 'cp -Rp' will b= e faster than an rsync. You might be better off doing an initial copy with = 'cp -Rp' and then just synchronizing diffs at the end with an rsync= pass, rather than trying to do the whole thing with rsync.

<= /div>
Hope some of this might help... just casual thoughts from a daily= XFS-wrangler ;)

Best,

Se= an



=
On Fri, Sep 5, 2014 at 5:24 PM, Brian Foster= <bfoster@redhat.com> wrote:
On Fri, Sep 05, 2014 at 10:14:5= 1PM +0200, Stefan Priebe wrote:
>
> Am 05.09.2014 21:18, schrieb Brian Foster:
> ...
>
> >On Fri, Sep 05, 2014 at 08:07:38PM +0200, Stefan Priebe wrote:
> >Interesting, that seems like a lot of free inodes. That's 1-2 = million in
> >each AG that we have to look around for each time we want to alloc= ate an
> >inode. I can't say for sure that's the source of the slowd= own, but this
> >certainly looks like the kind of workload that inspired the additi= on of
> >the free inode btree (finobt) to more recent kernels.
> >
> >It appears that you still have quite a bit of space available in > >general. Could you run some local tests on this filesystem to try = and
> >quantify how much of this degradation manifests on sustained write= s vs.
> >file creation? For example, how is throughput when writing a few G= B to a
> >local test file?
>
> Not sure if this is what you expect:
>
> # dd if=3D/dev/zero of=3Dbigfile oflag=3Ddirect,sync bs=3D4M count=3D1= 000
> 1000+0 records in
> 1000+0 records out
> 4194304000 bytes (4,2 GB) copied, 125,809 s, 33,3 MB/s
>
> or without sync
> # dd if=3D/dev/zero of=3Dbigfile oflag=3Ddirect bs=3D4M count=3D1000 > 1000+0 records in
> 1000+0 records out
> 4194304000 bytes (4,2 GB) copied, 32,5474 s, 129 MB/s
>
> > How about with that same amount of data broken up
> >across a few thousand files?
>
> This results in heavy kworker usage.
>
> 4GB in 32kb files
> # time (mkdir test; for i in $(seq 1 1 131072); do dd if=3D/dev/zero > of=3Dtest/$i bs=3D32k count=3D1 oflag=3Ddirect,sync 2>/dev/null; do= ne)
>
> ...
>
> 55 min
>

Both seem pretty slow in general. Any way you can establish a b= aseline
for these tests on this storage? If not, the only other suggestion I
could make is to allocate inodes until all of those freecount numbers
are accounted for and see if anything changes. That could certainly take some time and it's not clear it will actually help.

> >Brian
> >
> >P.S., Alternatively if you wanted to grab a metadump of this files= ystem
> >and compress/upload it somewhere, I'd be interested to take a = look at
> >it.
>
> I think there might be file and directory names in it. If this is the = case i
> can't do it.
>

It should enable obfuscation by default, but I would suggest to rest= ore
it yourself and verify it meets your expectations.

Brian

> Stefan
>
>
> >
> >>Thanks!
> >>
> >>Stefan
> >>
> >>
> >>
> >>>Brian
> >>>
> >>>>>... as well as what your typical workflow/dataset = is for this fs. It
> >>>>>seems like you have relatively small files (15TB u= sed across 350m files
> >>>>>is around 46k per file), yes?
> >>>>
> >>>>Yes - most fo them are even smaller. And some files ar= e > 5GB.
> >>>>
> >>>>>If so, I wonder if something like the
> >>>>>following commit introduced in 3.12 would help: > >>>>>
> >>>>>133eeb17 xfs: don't use speculative prealloc f= or small files
> >>>>
> >>>>Looks interesting.
> >>>>
> >>>>Stefan
>
> _______________________________________________
> xfs mailing list
> xfs@oss.sgi.com
> = http://oss.sgi.com/mailman/listinfo/xfs

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

--001a11c1f0da2a1c3e05025925d2-- From david@fromorbit.com Fri Sep 5 18:05:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0EE2D7F3F for ; Fri, 5 Sep 2014 18:05:37 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id D52CD30406A for ; Fri, 5 Sep 2014 16:05:33 -0700 (PDT) X-ASG-Debug-ID: 1409958330-04bdf0109a79e120001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id 4hMWMkGbO6q7jBJJ for ; Fri, 05 Sep 2014 16:05:31 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AixAANZAClR5LKYhPGdsb2JhbABagw2BKoIsrVcBAQEBAQEGmm+FaQEDAQEBgQMXBQEBAQE4NoQDAQEEATocIxAIAxgJJQ8FJQMHGhMbiB8Hvz8BFxiFZIhmIkkHhEwFnGuXDh6BbisvgQeBSAEBAQ Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail04.adl6.internode.on.net with ESMTP; 06 Sep 2014 08:35:29 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XQ2ZM-0002aT-8B; Sat, 06 Sep 2014 09:05:28 +1000 Date: Sat, 6 Sep 2014 09:05:28 +1000 From: Dave Chinner To: Stefan Priebe - Profihost AG Cc: Brian Foster , "xfs@oss.sgi.com" Subject: Re: Is XFS suitable for 350 million files on 20TB storage? Message-ID: <20140905230528.GO20473@dastard> X-ASG-Orig-Subj: Re: Is XFS suitable for 350 million files on 20TB storage? References: <540986B1.4080306@profihost.ag> <20140905123058.GA29710@bfoster.bfoster> <5409AF40.10801@profihost.ag> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5409AF40.10801@profihost.ag> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1409958331 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9216 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Sep 05, 2014 at 02:40:32PM +0200, Stefan Priebe - Profihost AG wrote: > > Am 05.09.2014 um 14:30 schrieb Brian Foster: > > On Fri, Sep 05, 2014 at 11:47:29AM +0200, Stefan Priebe - Profihost AG wrote: > >> Hi, > >> > >> i have a backup system running 20TB of storage having 350 million files. > >> This was working fine for month. > >> > >> But now the free space is so heavily fragmented that i only see the > >> kworker with 4x 100% CPU and write speed beeing very slow. 15TB of the > >> 20TB are in use. What does perf tell you about the CPU being burnt? (i.e run perf top for 10-20s while that CPU burn is happening and paste the top 10 CPU consuming functions). > >> > >> Overall files are 350 Million - all in different directories. Max 5000 > >> per dir. > >> > >> Kernel is 3.10.53 and mount options are: > >> noatime,nodiratime,attr2,inode64,logbufs=8,logbsize=256k,noquota > >> > >> # xfs_db -r -c freesp /dev/sda1 > >> from to extents blocks pct > >> 1 1 29484138 29484138 2,16 > >> 2 3 16930134 39834672 2,92 > >> 4 7 16169985 87877159 6,45 > >> 8 15 78202543 999838327 73,41 With an inode size of 256 bytes, this is going to be your real problem soon - most of the free space is smaller than an inode chunk so soon you won't be able to allocate new inodes, even though there is free space on disk. Unfortunately, there's not much we can do about this right now - we need development in both user and kernel space to mitigate this issue: spare inode chunk allocation in kernel space, and free space defragmentation in userspace. Both are on the near term development list.... Also, the fact that there are almost 80 million 8-15 block extents indicates that the CPU burn is likely coming from the by-size free space search. We look up the first extent of the correct size, and then do a linear search for a nearest extent of that size to the target. Hence we could be searching millions of extents to find the "nearest".... > >> 16 31 3562456 83746085 6,15 > >> 32 63 2370812 102124143 7,50 > >> 64 127 280885 18929867 1,39 > >> 256 511 2 827 0,00 > >> 512 1023 65 35092 0,00 > >> 2048 4095 2 6561 0,00 > >> 16384 32767 1 23951 0,00 > >> > >> Is there anything i can optimize? Or is it just a bad idea to do this > >> with XFS? No, it's not a bad idea. In fact, if you have this sort of use case, XFS is really your only choice. In terms of optimisation, the only thing that will really help performance is the new finobt structure. That's a mkfs option andnot an in-place change, though, so it's unlikely to help. FWIW, it may also help aging characteristics of this sort of workload by improving inode allocation layout. That would be a side effect of being able to search the entire free inode tree extremely quickly rather than allocating new chunks to keep CPU time searching the allocate inode tree for free inodes down. Hence it would tend to more tightly pack inode chunks when they are allocated on disk as it will fill full chunks before allocating new ones elsewhere. > >> Any other options? Maybe rsync options like --inplace / > >> --no-whole-file? For 350M files? I doubt there's much you can really do. Any sort of large scale re-organisation is going to take a long, long time and require lots of IO. If you are goign to take that route, you'd do better to upgrade kernel and xfsprogs, then dump/mkfs.xfs -m crc=1,finobt=1/restore. And you'd probably want to use a multi-stream dump/restore so it can run operations concurrently and hence at storage speed rather than being CPU bound.... Also, if the problem really is the number of indentically sized free space fragments in the freespace btrees, then the initial solution is, again, a mkfs one. i.e. remake the filesystem with more, smaller AGs to keep the number of extents the btrees need to index down to a reasonable level. Say a couple of hundred AGs rather than 21? > > If so, I wonder if something like the > > following commit introduced in 3.12 would help: > > > > 133eeb17 xfs: don't use speculative prealloc for small files > > Looks interesting. Probably won't make any difference because backups via rsync do open/write/close and don't touch the file data again, so the close will be removing speculative preallocation before the data is written and extents are allocated by background writeback.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Fri Sep 5 19:07:20 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B5E5C7F3F for ; Fri, 5 Sep 2014 19:07:20 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 94F168F8049 for ; Fri, 5 Sep 2014 17:07:17 -0700 (PDT) X-ASG-Debug-ID: 1409962034-04cb6c55007ff490001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id QtFNWSZtAdCndWir for ; Fri, 05 Sep 2014 17:07:15 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AmZAAAlPClR5LKYhPGdsb2JhbABagw0gM1eCLK1XAQEBAQEBBgWZAwKBZYVpAQMBAYEEFwUBAQEBODaERBwjGCQ0BSUDBy2IQb9bGIVkiVEdgiIPRIFBBYUKgRCOd12GfZkaKy+CTwEBAQ Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail04.adl6.internode.on.net with ESMTP; 06 Sep 2014 09:37:14 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XQ3X5-0002oD-JK; Sat, 06 Sep 2014 10:07:11 +1000 Date: Sat, 6 Sep 2014 10:07:11 +1000 From: Dave Chinner To: torvalds@linux-foundation.org Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com Subject: [GIT PULL] xfs: fixes for 3.17-rc3 Message-ID: <20140906000711.GX20518@dastard> X-ASG-Orig-Subj: [GIT PULL] xfs: fixes for 3.17-rc3 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1409962034 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9217 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header Hi Linus, Can you please pull the following XFS fixes? The fixes all address recently discovered data corruption issues. The original Direct IO issue was discovered by Chris Mason @ Facebook on a production workload which mixed buffered reads with direct reads and writes IO to the same file. The fix for that exposed other issues with page invalidation (exposed by millions of fsx operations) failing due to dirty buffers beyond EOF. Finally, the collapse_range code could also cause problems due to racing writeback changing the extent map while it was being shifted around. The commits for that problem are simple mitigation fixes that prevent the problem from occuring. A more robust fix for 3.18 that addresses the underlying problem is currently being worked on by Brian. -Dave. The following changes since commit 52addcf9d6669fa439387610bc65c92fa0980cef: Linux 3.17-rc2 (2014-08-25 15:36:20 -0700) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs tags/xfs-for-linus-3.17-rc3 for you to fetch changes up to 41b9d7263ea1e270019c5d04fa0ab15db50b9725: xfs: trim eofblocks before collapse range (2014-09-02 12:12:53 +1000) ---------------------------------------------------------------- xfs: fixes for v3.17-rc3 Fix: - a direct IO read/buffered read data corruption - the associated fallout from the DIO data corruption fix - collapse range bugs that are potential data corruption issues. ---------------------------------------------------------------- Brian Foster (2): xfs: don't log inode unless extent shift makes extent modifications xfs: trim eofblocks before collapse range Chris Mason (1): xfs: don't zero partial page cache pages during O_DIRECT writes Dave Chinner (4): xfs: don't dirty buffers beyond EOF xfs: don't zero partial page cache pages during O_DIRECT writes xfs: use ranged writeback and invalidation for direct IO xfs: xfs_file_collapse_range is delalloc challenged fs/xfs/libxfs/xfs_bmap.c | 18 ++++++++------ fs/xfs/xfs_aops.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++ fs/xfs/xfs_bmap_util.c | 20 +++++++++++++++ fs/xfs/xfs_file.c | 27 +++++++++++++++++--- 4 files changed, 114 insertions(+), 12 deletions(-) -- Dave Chinner david@fromorbit.com From s.priebe@profihost.ag Sat Sep 6 02:35:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 03F4F7F3F for ; Sat, 6 Sep 2014 02:35:17 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id A2564AC002 for ; Sat, 6 Sep 2014 00:35:13 -0700 (PDT) X-ASG-Debug-ID: 1409988910-04bdf010a17ab910001-NocioJ Received: from mail-ph.de-nserver.de (mail-ph.de-nserver.de [85.158.179.214]) by cuda.sgi.com with ESMTP id 2jqSs9RxSdVN8xfq (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sat, 06 Sep 2014 00:35:11 -0700 (PDT) X-Barracuda-Envelope-From: s.priebe@profihost.ag X-Barracuda-Apparent-Source-IP: 85.158.179.214 Received: (qmail 29820 invoked from network); 6 Sep 2014 09:35:09 +0200 X-Fcrdns: No Received: from phoffice.de-nserver.de (HELO [10.242.2.6]) (185.39.223.5) (smtp-auth username s.priebe@profihost.ag, mechanism plain) by mail-ph.de-nserver.de (qpsmtpd/0.92) with (ECDHE-RSA-AES256-SHA encrypted) ESMTPSA; Sat, 06 Sep 2014 09:35:09 +0200 Message-ID: <540AB933.4030707@profihost.ag> Date: Sat, 06 Sep 2014 09:35:15 +0200 From: Stefan Priebe User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Dave Chinner CC: Brian Foster , "xfs@oss.sgi.com" Subject: Re: Is XFS suitable for 350 million files on 20TB storage? References: <540986B1.4080306@profihost.ag> <20140905123058.GA29710@bfoster.bfoster> <5409AF40.10801@profihost.ag> <20140905230528.GO20473@dastard> X-ASG-Orig-Subj: Re: Is XFS suitable for 350 million files on 20TB storage? In-Reply-To: <20140905230528.GO20473@dastard> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit X-User-Auth: Auth by s.priebe@profihost.ag through 185.39.223.5 X-Barracuda-Connect: mail-ph.de-nserver.de[85.158.179.214] X-Barracuda-Start-Time: 1409988910 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9225 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi Dave, Am 06.09.2014 01:05, schrieb Dave Chinner: > On Fri, Sep 05, 2014 at 02:40:32PM +0200, Stefan Priebe - Profihost AG wrote: >> >> Am 05.09.2014 um 14:30 schrieb Brian Foster: >>> On Fri, Sep 05, 2014 at 11:47:29AM +0200, Stefan Priebe - Profihost AG wrote: >>>> Hi, >>>> >>>> i have a backup system running 20TB of storage having 350 million files. >>>> This was working fine for month. >>>> >>>> But now the free space is so heavily fragmented that i only see the >>>> kworker with 4x 100% CPU and write speed beeing very slow. 15TB of the >>>> 20TB are in use. > > What does perf tell you about the CPU being burnt? (i.e run perf top > for 10-20s while that CPU burn is happening and paste the top 10 CPU > consuming functions). here we go: 15,79% [kernel] [k] xfs_inobt_get_rec 14,57% [kernel] [k] xfs_btree_get_rec 10,37% [kernel] [k] xfs_btree_increment 7,20% [kernel] [k] xfs_btree_get_block 6,13% [kernel] [k] xfs_btree_rec_offset 4,90% [kernel] [k] xfs_dialloc_ag 3,53% [kernel] [k] xfs_btree_readahead 2,87% [kernel] [k] xfs_btree_rec_addr 2,80% [kernel] [k] _xfs_buf_find 1,94% [kernel] [k] intel_idle 1,49% [kernel] [k] _raw_spin_lock 1,13% [kernel] [k] copy_pte_range 1,10% [kernel] [k] unmap_single_vma >>>> >>>> Overall files are 350 Million - all in different directories. Max 5000 >>>> per dir. >>>> >>>> Kernel is 3.10.53 and mount options are: >>>> noatime,nodiratime,attr2,inode64,logbufs=8,logbsize=256k,noquota >>>> >>>> # xfs_db -r -c freesp /dev/sda1 >>>> from to extents blocks pct >>>> 1 1 29484138 29484138 2,16 >>>> 2 3 16930134 39834672 2,92 >>>> 4 7 16169985 87877159 6,45 >>>> 8 15 78202543 999838327 73,41 > > With an inode size of 256 bytes, this is going to be your real > problem soon - most of the free space is smaller than an inode > chunk so soon you won't be able to allocate new inodes, even though > there is free space on disk. > > Unfortunately, there's not much we can do about this right now - we > need development in both user and kernel space to mitigate this > issue: spare inode chunk allocation in kernel space, and free space > defragmentation in userspace. Both are on the near term development > list.... > > Also, the fact that there are almost 80 million 8-15 block extents > indicates that the CPU burn is likely coming from the by-size free > space search. We look up the first extent of the correct size, and > then do a linear search for a nearest extent of that size to the > target. Hence we could be searching millions of extents to find the > "nearest".... > >>>> 16 31 3562456 83746085 6,15 >>>> 32 63 2370812 102124143 7,50 >>>> 64 127 280885 18929867 1,39 >>>> 256 511 2 827 0,00 >>>> 512 1023 65 35092 0,00 >>>> 2048 4095 2 6561 0,00 >>>> 16384 32767 1 23951 0,00 >>>> >>>> Is there anything i can optimize? Or is it just a bad idea to do this >>>> with XFS? > > No, it's not a bad idea. In fact, if you have this sort of use case, > XFS is really your only choice. In terms of optimisation, the only > thing that will really help performance is the new finobt structure. > That's a mkfs option andnot an in-place change, though, so it's > unlikely to help. I've no problem with reformatting the array. I've more backups. > FWIW, it may also help aging characteristics of this sort of > workload by improving inode allocation layout. That would be > a side effect of being able to search the entire free inode tree > extremely quickly rather than allocating new chunks to keep CPU time > searching the allocate inode tree for free inodes down. Hence it > would tend to more tightly pack inode chunks when they are allocated > on disk as it will fill full chunks before allocating new ones > elsewhere. > >>>> Any other options? Maybe rsync options like --inplace / >>>> --no-whole-file? > > For 350M files? I doubt there's much you can really do. Any sort of > large scale re-organisation is going to take a long, long time and > require lots of IO. If you are goign to take that route, you'd do > better to upgrade kernel and xfsprogs, then dump/mkfs.xfs -m > crc=1,finobt=1/restore. And you'd probably want to use a > multi-stream dump/restore so it can run operations concurrently and > hence at storage speed rather than being CPU bound.... I don't need a backup reformatting is possible but i really would like to stay at 3.10. Is there anything i can backport or do i really need to upgrade? Which version at least? > Also, if the problem really is the number of indentically sized free > space fragments in the freespace btrees, then the initial solution > is, again, a mkfs one. i.e. remake the filesystem with more, smaller > AGs to keep the number of extents the btrees need to index down to a > reasonable level. Say a couple of hundred AGs rather than 21? mkfs has chosen 21 automagically - it's nothing i've set. Is this a bug or do i just need it cause of my special use case. Thanks! Stefan >>> If so, I wonder if something like the >>> following commit introduced in 3.12 would help: >>> >>> 133eeb17 xfs: don't use speculative prealloc for small files >> >> Looks interesting. > > Probably won't make any difference because backups via rsync do > open/write/close and don't touch the file data again, so the close > will be removing speculative preallocation before the data is > written and extents are allocated by background writeback.... > > Cheers, > > Dave. > From shenjqb@online.sh.cn Sat Sep 6 09:01:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.7 required=5.0 tests=DATE_IN_PAST_06_12, HTML_MESSAGE,MIME_QP_LONG_LINE,TVD_SPACE_RATIO,T_TVD_MIME_EPI autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 1CD0C7F3F for ; Sat, 6 Sep 2014 09:01:25 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id F0BC38F8049 for ; Sat, 6 Sep 2014 07:01:21 -0700 (PDT) X-ASG-Debug-ID: 1410012077-04cb6c54fd8103b0001-NocioJ Received: from mail.online.sh.cn (wg1.online.sh.cn [61.152.74.17]) by cuda.sgi.com with SMTP id 5g0eCEkxGCNo1Idl for ; Sat, 06 Sep 2014 07:01:17 -0700 (PDT) X-Barracuda-Envelope-From: shenjqb@online.sh.cn X-Barracuda-Apparent-Source-IP: 61.152.74.17 Received: from [95.180.42.194] by mail.online.sh.cn with messagesec esmtp id 6112319180464484; Sat, 6 Sep 2014 22:01:13 +0800 (CST) Message-ID: From: info To: "weblog" , "webshep2" , "welchm" , "WENDY" , "WENDY GONZALEZ" , "wendy" , "wgarrow" , "whanright" , "Whittier School" , "wigt" , "william" , "winona autry" , "wmillimen" , "wmson" , "wppresby church" , "wrwest" , "wsa24" , "wunbusymom" , "xfs" , "yangsha460" Subject: from info@recycleforschools.com Date: Fri, 6 Sep 2014 03:01:08 +0000 X-ASG-Orig-Subj: from info@recycleforschools.com MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_13AF_AF5BAACD.72CA8743" X-Mailer: iPhone Mail (11D201) X-Barracuda-Connect: wg1.online.sh.cn[61.152.74.17] X-Barracuda-Start-Time: 1410012077 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 2.13 X-Barracuda-Spam-Status: No, SCORE=2.13 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, DATE_IN_PAST_06_12, DATE_IN_PAST_06_12_2, HTML_MESSAGE, MIME_QP_LONG_LINE, MIME_QP_LONG_LINE_2, PR0N_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9231 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.01 DATE_IN_PAST_06_12 Date: is 6 to 12 hours before Received: date 0.00 HTML_MESSAGE BODY: HTML included in message 0.00 MIME_QP_LONG_LINE RAW: Quoted-printable line longer than 76 chars 0.82 MIME_QP_LONG_LINE_2 RAW: Quoted-printable line longer than 76 chars 0.20 PR0N_SUBJECT Subject has letters around special characters (pr0n) 1.10 DATE_IN_PAST_06_12_2 DATE_IN_PAST_06_12_2 This is a multi-part message in MIME format. ------=_NextPart_000_13AF_AF5BAACD.72CA8743 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hi! 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------=_NextPart_000_13AF_AF5BAACD.72CA8743-- Thread-Index: AUhyRRAY7WJ0aGo1c3BkaHk2OXBtMg== From bfoster@redhat.com Sat Sep 6 09:51:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 2ED9C7F3F for ; Sat, 6 Sep 2014 09:51:21 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id A2C59AC004 for ; Sat, 6 Sep 2014 07:51:17 -0700 (PDT) X-ASG-Debug-ID: 1410015075-04cb6c54fd8114e0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id ZyBtBGZbXqtNNTwJ (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sat, 06 Sep 2014 07:51:16 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s86Ep79N027962 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Sat, 6 Sep 2014 10:51:07 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s86Ep6Yv007460; Sat, 6 Sep 2014 10:51:07 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id B21951256F8; Sat, 6 Sep 2014 10:51:05 -0400 (EDT) Date: Sat, 6 Sep 2014 10:51:05 -0400 From: Brian Foster To: Dave Chinner Cc: Stefan Priebe - Profihost AG , "xfs@oss.sgi.com" Subject: Re: Is XFS suitable for 350 million files on 20TB storage? Message-ID: <20140906145105.GA23506@bfoster.bfoster> X-ASG-Orig-Subj: Re: Is XFS suitable for 350 million files on 20TB storage? References: <540986B1.4080306@profihost.ag> <20140905123058.GA29710@bfoster.bfoster> <5409AF40.10801@profihost.ag> <20140905230528.GO20473@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140905230528.GO20473@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410015075 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sat, Sep 06, 2014 at 09:05:28AM +1000, Dave Chinner wrote: > On Fri, Sep 05, 2014 at 02:40:32PM +0200, Stefan Priebe - Profihost AG wrote: > > > > Am 05.09.2014 um 14:30 schrieb Brian Foster: > > > On Fri, Sep 05, 2014 at 11:47:29AM +0200, Stefan Priebe - Profihost AG wrote: > > >> Hi, > > >> > > >> i have a backup system running 20TB of storage having 350 million files. > > >> This was working fine for month. > > >> > > >> But now the free space is so heavily fragmented that i only see the > > >> kworker with 4x 100% CPU and write speed beeing very slow. 15TB of the > > >> 20TB are in use. > > What does perf tell you about the CPU being burnt? (i.e run perf top > for 10-20s while that CPU burn is happening and paste the top 10 CPU > consuming functions). > > > >> > > >> Overall files are 350 Million - all in different directories. Max 5000 > > >> per dir. > > >> > > >> Kernel is 3.10.53 and mount options are: > > >> noatime,nodiratime,attr2,inode64,logbufs=8,logbsize=256k,noquota > > >> > > >> # xfs_db -r -c freesp /dev/sda1 > > >> from to extents blocks pct > > >> 1 1 29484138 29484138 2,16 > > >> 2 3 16930134 39834672 2,92 > > >> 4 7 16169985 87877159 6,45 > > >> 8 15 78202543 999838327 73,41 > > With an inode size of 256 bytes, this is going to be your real > problem soon - most of the free space is smaller than an inode > chunk so soon you won't be able to allocate new inodes, even though > there is free space on disk. > The extent list here is in fsb units, right? 256b inodes means 16k inode chunks, in which case it seems like there's still plenty of room for inode chunks (e.g., 8-15 blocks -> 32k-64k). If you're at 350m inodes for 15T with 5T to go, that's 23.3m inodes per TB and extrapolates to ~117m more to enospc. That's 1.8m inode chunks out of the ~80m 8-15 block records currently free, and doesn't count the 20+ million inodes that seem to be scattered about the existing records as well. I certainly could be missing something here, but it seems like premature enospc due to inode chunk allocation failure might not be an impending problem here (likely due to using the smallest inode size, the risk seems to increase much more using the larger inode sizes)... > Unfortunately, there's not much we can do about this right now - we > need development in both user and kernel space to mitigate this > issue: spare inode chunk allocation in kernel space, and free space > defragmentation in userspace. Both are on the near term development > list.... > > Also, the fact that there are almost 80 million 8-15 block extents > indicates that the CPU burn is likely coming from the by-size free > space search. We look up the first extent of the correct size, and > then do a linear search for a nearest extent of that size to the > target. Hence we could be searching millions of extents to find the > "nearest".... > > > >> 16 31 3562456 83746085 6,15 > > >> 32 63 2370812 102124143 7,50 > > >> 64 127 280885 18929867 1,39 > > >> 256 511 2 827 0,00 > > >> 512 1023 65 35092 0,00 > > >> 2048 4095 2 6561 0,00 > > >> 16384 32767 1 23951 0,00 > > >> > > >> Is there anything i can optimize? Or is it just a bad idea to do this > > >> with XFS? > > No, it's not a bad idea. In fact, if you have this sort of use case, > XFS is really your only choice. In terms of optimisation, the only > thing that will really help performance is the new finobt structure. > That's a mkfs option andnot an in-place change, though, so it's > unlikely to help. > > FWIW, it may also help aging characteristics of this sort of > workload by improving inode allocation layout. That would be > a side effect of being able to search the entire free inode tree > extremely quickly rather than allocating new chunks to keep CPU time > searching the allocate inode tree for free inodes down. Hence it > would tend to more tightly pack inode chunks when they are allocated > on disk as it will fill full chunks before allocating new ones > elsewhere. > > > >> Any other options? Maybe rsync options like --inplace / > > >> --no-whole-file? > > For 350M files? I doubt there's much you can really do. Any sort of > large scale re-organisation is going to take a long, long time and > require lots of IO. If you are goign to take that route, you'd do > better to upgrade kernel and xfsprogs, then dump/mkfs.xfs -m > crc=1,finobt=1/restore. And you'd probably want to use a > multi-stream dump/restore so it can run operations concurrently and > hence at storage speed rather than being CPU bound.... > > Also, if the problem really is the number of indentically sized free > space fragments in the freespace btrees, then the initial solution > is, again, a mkfs one. i.e. remake the filesystem with more, smaller > AGs to keep the number of extents the btrees need to index down to a > reasonable level. Say a couple of hundred AGs rather than 21? > > > > If so, I wonder if something like the > > > following commit introduced in 3.12 would help: > > > > > > 133eeb17 xfs: don't use speculative prealloc for small files > > > > Looks interesting. > > Probably won't make any difference because backups via rsync do > open/write/close and don't touch the file data again, so the close > will be removing speculative preallocation before the data is > written and extents are allocated by background writeback.... > Yeah, good point. I was curious if there was an fsync involved somewhere in the sequence here, but I didn't see rsync doing that anywhere. I think we've seen that contribute to the aforementioned inode chunk allocation problem when mixed with aggressive prealloc, but that was a different application (openstack related, iirc). That said, Stefan did mention that rsync can do file updates here. So perhaps there exists the possibility to see multiple file extensions and writeback causing a similar kind of prealloc->convert->trim eofblocks pattern across multiple backups..? Either way I agree that seems much less likely to be a prominent contributer to the problem here. Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Sat Sep 6 10:04:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 6310F7F3F for ; Sat, 6 Sep 2014 10:04:21 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 261A9304043 for ; Sat, 6 Sep 2014 08:04:17 -0700 (PDT) X-ASG-Debug-ID: 1410015856-04bdf010977b4fb0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id yNJraELWVh2nXu45 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sat, 06 Sep 2014 08:04:16 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s86F4Ej9016132 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Sat, 6 Sep 2014 11:04:14 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s86F4Eip010115; Sat, 6 Sep 2014 11:04:14 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 3E59C1256F8; Sat, 6 Sep 2014 11:04:13 -0400 (EDT) Date: Sat, 6 Sep 2014 11:04:13 -0400 From: Brian Foster To: Stefan Priebe Cc: Dave Chinner , "xfs@oss.sgi.com" Subject: Re: Is XFS suitable for 350 million files on 20TB storage? Message-ID: <20140906150412.GB23506@bfoster.bfoster> X-ASG-Orig-Subj: Re: Is XFS suitable for 350 million files on 20TB storage? References: <540986B1.4080306@profihost.ag> <20140905123058.GA29710@bfoster.bfoster> <5409AF40.10801@profihost.ag> <20140905230528.GO20473@dastard> <540AB933.4030707@profihost.ag> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <540AB933.4030707@profihost.ag> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410015856 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sat, Sep 06, 2014 at 09:35:15AM +0200, Stefan Priebe wrote: > Hi Dave, > > Am 06.09.2014 01:05, schrieb Dave Chinner: > >On Fri, Sep 05, 2014 at 02:40:32PM +0200, Stefan Priebe - Profihost AG wrote: > >> > >>Am 05.09.2014 um 14:30 schrieb Brian Foster: > >>>On Fri, Sep 05, 2014 at 11:47:29AM +0200, Stefan Priebe - Profihost AG wrote: > >>>>Hi, > >>>> > >>>>i have a backup system running 20TB of storage having 350 million files. > >>>>This was working fine for month. > >>>> > >>>>But now the free space is so heavily fragmented that i only see the > >>>>kworker with 4x 100% CPU and write speed beeing very slow. 15TB of the > >>>>20TB are in use. > > > >What does perf tell you about the CPU being burnt? (i.e run perf top > >for 10-20s while that CPU burn is happening and paste the top 10 CPU > >consuming functions). > > here we go: > 15,79% [kernel] [k] xfs_inobt_get_rec > 14,57% [kernel] [k] xfs_btree_get_rec > 10,37% [kernel] [k] xfs_btree_increment > 7,20% [kernel] [k] xfs_btree_get_block > 6,13% [kernel] [k] xfs_btree_rec_offset > 4,90% [kernel] [k] xfs_dialloc_ag > 3,53% [kernel] [k] xfs_btree_readahead > 2,87% [kernel] [k] xfs_btree_rec_addr > 2,80% [kernel] [k] _xfs_buf_find > 1,94% [kernel] [k] intel_idle > 1,49% [kernel] [k] _raw_spin_lock > 1,13% [kernel] [k] copy_pte_range > 1,10% [kernel] [k] unmap_single_vma > The top 6 or so items look related to inode allocation, so that probably confirms the primary bottleneck as searching around for free inodes out of the existing inode chunks, precisely what the finobt is intended to resolve. That was introduced in 3.16 kernels, so unfortunately it is not available in 3.10. Brian > >>>> > >>>>Overall files are 350 Million - all in different directories. Max 5000 > >>>>per dir. > >>>> > >>>>Kernel is 3.10.53 and mount options are: > >>>>noatime,nodiratime,attr2,inode64,logbufs=8,logbsize=256k,noquota > >>>> > >>>># xfs_db -r -c freesp /dev/sda1 > >>>> from to extents blocks pct > >>>> 1 1 29484138 29484138 2,16 > >>>> 2 3 16930134 39834672 2,92 > >>>> 4 7 16169985 87877159 6,45 > >>>> 8 15 78202543 999838327 73,41 > > > >With an inode size of 256 bytes, this is going to be your real > >problem soon - most of the free space is smaller than an inode > >chunk so soon you won't be able to allocate new inodes, even though > >there is free space on disk. > > > >Unfortunately, there's not much we can do about this right now - we > >need development in both user and kernel space to mitigate this > >issue: spare inode chunk allocation in kernel space, and free space > >defragmentation in userspace. Both are on the near term development > >list.... > > > >Also, the fact that there are almost 80 million 8-15 block extents > >indicates that the CPU burn is likely coming from the by-size free > >space search. We look up the first extent of the correct size, and > >then do a linear search for a nearest extent of that size to the > >target. Hence we could be searching millions of extents to find the > >"nearest".... > > > >>>> 16 31 3562456 83746085 6,15 > >>>> 32 63 2370812 102124143 7,50 > >>>> 64 127 280885 18929867 1,39 > >>>> 256 511 2 827 0,00 > >>>> 512 1023 65 35092 0,00 > >>>> 2048 4095 2 6561 0,00 > >>>> 16384 32767 1 23951 0,00 > >>>> > >>>>Is there anything i can optimize? Or is it just a bad idea to do this > >>>>with XFS? > > > >No, it's not a bad idea. In fact, if you have this sort of use case, > >XFS is really your only choice. In terms of optimisation, the only > >thing that will really help performance is the new finobt structure. > >That's a mkfs option andnot an in-place change, though, so it's > >unlikely to help. > > I've no problem with reformatting the array. I've more backups. > > >FWIW, it may also help aging characteristics of this sort of > >workload by improving inode allocation layout. That would be > >a side effect of being able to search the entire free inode tree > >extremely quickly rather than allocating new chunks to keep CPU time > >searching the allocate inode tree for free inodes down. Hence it > >would tend to more tightly pack inode chunks when they are allocated > >on disk as it will fill full chunks before allocating new ones > >elsewhere. > > > >>>>Any other options? Maybe rsync options like --inplace / > >>>>--no-whole-file? > > > >For 350M files? I doubt there's much you can really do. Any sort of > >large scale re-organisation is going to take a long, long time and > >require lots of IO. If you are goign to take that route, you'd do > >better to upgrade kernel and xfsprogs, then dump/mkfs.xfs -m > >crc=1,finobt=1/restore. And you'd probably want to use a > >multi-stream dump/restore so it can run operations concurrently and > >hence at storage speed rather than being CPU bound.... > > I don't need a backup reformatting is possible but i really would like to > stay at 3.10. Is there anything i can backport or do i really need to > upgrade? Which version at least? > > >Also, if the problem really is the number of indentically sized free > >space fragments in the freespace btrees, then the initial solution > >is, again, a mkfs one. i.e. remake the filesystem with more, smaller > >AGs to keep the number of extents the btrees need to index down to a > >reasonable level. Say a couple of hundred AGs rather than 21? > > mkfs has chosen 21 automagically - it's nothing i've set. Is this a bug or > do i just need it cause of my special use case. > > Thanks! > > Stefan > > >>>If so, I wonder if something like the > >>>following commit introduced in 3.12 would help: > >>> > >>>133eeb17 xfs: don't use speculative prealloc for small files > >> > >>Looks interesting. > > > >Probably won't make any difference because backups via rsync do > >open/write/close and don't touch the file data again, so the close > >will be removing speculative preallocation before the data is > >written and extents are allocated by background writeback.... > > > >Cheers, > > > >Dave. > > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From sandeen@sandeen.net Sat Sep 6 12:25:48 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E78717F3F for ; Sat, 6 Sep 2014 12:25:48 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id C70DE8F8035 for ; Sat, 6 Sep 2014 10:25:45 -0700 (PDT) X-ASG-Debug-ID: 1410024343-04bdf010a07b7fa0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id oxJxtMyqqhALA54o for ; Sat, 06 Sep 2014 10:25:43 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 39C8760FCA5C for ; Sat, 6 Sep 2014 12:25:43 -0500 (CDT) Message-ID: <540B4399.4020804@sandeen.net> Date: Sat, 06 Sep 2014 12:25:45 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss Subject: [PATCH 0/2] xfsprogs: xfs_db crc fixes/changes Content-Type: text/plain; charset=ISO-8859-1; format=flowed X-ASG-Orig-Subj: [PATCH 0/2] xfsprogs: xfs_db crc fixes/changes Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410024343 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9235 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 2 patches related to crcs in xfs_db, 1) display inode CRC status when read, and revalidate it when written 2) add a new "crc" command to validate, invalidate, or revalidate the CRC on a disk structure thanks, -Eric From sandeen@sandeen.net Sat Sep 6 12:46:10 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7FFF77F3F for ; Sat, 6 Sep 2014 12:46:10 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6EDF28F8039 for ; Sat, 6 Sep 2014 10:46:10 -0700 (PDT) X-ASG-Debug-ID: 1410025565-04cbb05486a9fbb0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id kypjftlLYLYIsGx3 for ; Sat, 06 Sep 2014 10:46:06 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 3974A60FCA5B for ; Sat, 6 Sep 2014 12:46:05 -0500 (CDT) Message-ID: <540B485F.8070502@sandeen.net> Date: Sat, 06 Sep 2014 12:46:07 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss Subject: [PATCH 1/2] xfs_db: fix inode CRC validity state, and warn on read if invalid References: <540B4399.4020804@sandeen.net> X-ASG-Orig-Subj: [PATCH 1/2] xfs_db: fix inode CRC validity state, and warn on read if invalid In-Reply-To: <540B4399.4020804@sandeen.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410025565 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9235 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Currently, the "ino_crc_ok" field on the io cursor reflects overall inode validity, not CRC correctness. Because it is only used when printing CRC validity, change it to reflect only that. In addition, when reading an inode, print the current CRC state. Note, if specifying an inode which doesn't actually exist, this will claim corruption; I'm not sure if that's good or bad. Today, it already issues corruption errors on the way; this adds a new message as well ;) xfs_db> inode 129 Metadata corruption detected at block 0x80/0x2000 Metadata corruption detected at block 0x80/0x2000 ... Metadata CRC error detected for ino 129 Signed-off-by: Eric Sandeen --- diff --git a/db/inode.c b/db/inode.c index 24170ba..244d03b 100644 --- a/db/inode.c +++ b/db/inode.c @@ -684,13 +684,18 @@ set_cur_inode( numblks, DB_RING_IGN, NULL); off_cur(offset << mp->m_sb.sb_inodelog, mp->m_sb.sb_inodesize); dip = iocur_top->data; - iocur_top->ino_crc_ok = libxfs_dinode_verify(mp, ino, dip); + iocur_top->ino_crc_ok = xfs_verify_cksum((char *)dip, + mp->m_sb.sb_inodesize, + XFS_DINODE_CRC_OFF); iocur_top->ino_buf = 1; iocur_top->ino = ino; iocur_top->mode = be16_to_cpu(dip->di_mode); if ((iocur_top->mode & S_IFMT) == S_IFDIR) iocur_top->dirino = ino; + if (xfs_sb_version_hascrc(&mp->m_sb) && !iocur_top->ino_crc_ok) + dbprintf(_("Metadata CRC error detected for ino %lld\n"), ino); + /* track updated info in ring */ ring_add(); } diff --git a/db/io.c b/db/io.c index 7f1b76a..93ebf5c 100644 --- a/db/io.c +++ b/db/io.c @@ -473,6 +473,17 @@ write_cur(void) write_cur_bbs(); else write_cur_buf(); + + if (iocur_top->ino_buf) { + xfs_dinode_t *dip; + xfs_ino_t ino; + + dip = iocur_top->data; + ino = iocur_top->ino; + iocur_top->ino_crc_ok = xfs_verify_cksum((char *)dip, + mp->m_sb.sb_inodesize, + XFS_DINODE_CRC_OFF); + } } void From sandeen@sandeen.net Sat Sep 6 12:52:35 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 32ACC7F3F for ; Sat, 6 Sep 2014 12:52:35 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id A1032AC001 for ; Sat, 6 Sep 2014 10:52:31 -0700 (PDT) X-ASG-Debug-ID: 1410025949-04cb6c54fd8154b0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id 6D0aGRqNlwKuLoUt for ; Sat, 06 Sep 2014 10:52:29 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 0772D60FCA5C for ; Sat, 6 Sep 2014 12:52:28 -0500 (CDT) Message-ID: <540B49DF.8000404@sandeen.net> Date: Sat, 06 Sep 2014 12:52:31 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss Subject: [PATCH 2/2] xfsprogs: xfs_db: add crc manipulation commands References: <540B4399.4020804@sandeen.net> X-ASG-Orig-Subj: [PATCH 2/2] xfsprogs: xfs_db: add crc manipulation commands In-Reply-To: <540B4399.4020804@sandeen.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410025949 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9235 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- This adds a new "crc" command to xfs_db for CRC-enabled filesystems. If a structure has a CRC field, we can validate it, invalidate/corrupt it, or revalidate/rewrite it: xfs_db> sb 0 xfs_db> crc -v crc = 0x796c814f (correct) xfs_db> crc -i Metadata CRC error detected at block 0x0/0x200 crc = 0x796c8150 (bad) xfs_db> crc -r crc = 0x796c814f (correct) This requires temporarily replacing the write verifier with a dummy which won't recalculate the CRC on the way to disk. It also required me to write a new flist function, which is totally foreign to me, so hopefully done right - but it seems to work here. Signed-off-by: Eric Sandeen --- diff --git a/db/Makefile b/db/Makefile index bae6154..f0175cc 100644 --- a/db/Makefile +++ b/db/Makefile @@ -8,7 +8,7 @@ include $(TOPDIR)/include/builddefs LTCOMMAND = xfs_db HFILES = addr.h agf.h agfl.h agi.h attr.h attrshort.h bit.h block.h bmap.h \ - btblock.h bmroot.h check.h command.h convert.h debug.h \ + btblock.h bmroot.h check.h command.h convert.h crc.h debug.h \ dir2.h dir2sf.h dquot.h echo.h faddr.h field.h \ flist.h fprint.h frag.h freesp.h hash.h help.h init.h inode.h input.h \ io.h malloc.h metadump.h output.h print.h quit.h sb.h sig.h strvec.h \ diff --git a/db/command.c b/db/command.c index b7e3165..d44e0a5 100644 --- a/db/command.c +++ b/db/command.c @@ -48,6 +48,7 @@ #include "write.h" #include "malloc.h" #include "dquot.h" +#include "crc.h" cmdinfo_t *cmdtab; int ncmds; @@ -123,6 +124,7 @@ init_commands(void) bmap_init(); check_init(); convert_init(); + crc_init(); debug_init(); echo_init(); frag_init(); diff --git a/db/crc.c b/db/crc.c new file mode 100644 index 0000000..73dffcc --- /dev/null +++ b/db/crc.c @@ -0,0 +1,189 @@ +/* + * Copyright (c) 2014 Red Hat, Inc. + * All Rights Reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include +#include "addr.h" +#include "command.h" +#include "type.h" +#include "faddr.h" +#include "fprint.h" +#include "field.h" +#include "flist.h" +#include "io.h" +#include "init.h" +#include "output.h" +#include "bit.h" +#include "print.h" + +static int crc_f(int argc, char **argv); +static void crc_help(void); + +static const cmdinfo_t crc_cmd = + { "crc", NULL, crc_f, 0, 1, 0, "[-i|-r|-v]", + N_("manipulate crc values for V5 filesystem structures"), crc_help }; + +void +crc_init(void) +{ + if (xfs_sb_version_hascrc(&mp->m_sb)) + add_command(&crc_cmd); +} + +static void +crc_help(void) +{ + dbprintf(_( +"\n" +" 'crc' validates, invalidates, or recalculates the crc value for\n" +" the current on-disk metadata structures in Version 5 filesystems.\n" +"\n" +" Usage: \"crc [-i|-r|-v]\"\n" +"\n" +)); + +} + +void +xfs_dummy_write_verify( + struct xfs_buf *bp) +{ + return; +} + +static int +crc_f( + int argc, + char **argv) +{ + const struct xfs_buf_ops *stashed_ops = NULL; + extern char *progname; + const field_t *fields; + const ftattr_t *fa; + flist_t *fl; + int invalidate = 0; + int recalculate = 0; + int validate = 0; + int c; + + if (cur_typ == NULL) { + dbprintf(_("no current type\n")); + return 0; + } + + if (cur_typ->fields == NULL) { + dbprintf(_("current type (%s) is not a structure\n"), + cur_typ->name); + return 0; + } + + if (argc) while ((c = getopt(argc, argv, "irv")) != EOF) { + switch (c) { + case 'i': + invalidate = 1; + break; + case 'r': + recalculate = 1; + break; + case 'v': + validate = 1; + break; + default: + dbprintf(_("bad option for crc command\n")); + return 0; + } + } else + validate = 1; + + if (invalidate + recalculate + validate > 1) { + dbprintf(_("crc command accepts only one option\n")); + return 0; + } + + if ((invalidate || recalculate) && + (x.isreadonly & LIBXFS_ISREADONLY || !expert_mode)) { + dbprintf(_("%s not in expert mode, writing disabled\n"), + progname); + return 0; + } + + fields = cur_typ->fields; + + /* if we're a root field type, go down 1 layer to get field list */ + if (fields->name[0] == '\0') { + fa = &ftattrtab[fields->ftyp]; + ASSERT(fa->ftyp == fields->ftyp); + fields = fa->subfld; + } + + /* Search for a CRC field */ + fl = flist_find_ftyp(fields, FLDT_CRC); + if (!fl) { + dbprintf(_("No CRC field found for type %s\n"), cur_typ->name); + return 0; + } + + /* run down the field list and set offsets into the data */ + if (!flist_parse(fields, fl, iocur_top->data, 0)) { + flist_free(fl); + dbprintf(_("parsing error\n")); + return 0; + } + + if (invalidate) { + struct xfs_buf_ops nowrite_ops; + flist_t *sfl; + int bit_length; + int parentoffset; + int crc; + + sfl = fl; + parentoffset = 0; + while (sfl->child) { + parentoffset = sfl->offset; + sfl = sfl->child; + } + ASSERT(sfl->fld->ftyp == FLDT_CRC); + + bit_length = fsize(sfl->fld, iocur_top->data, parentoffset, 0); + bit_length *= fcount(sfl->fld, iocur_top->data, parentoffset); + crc = getbitval(iocur_top->data, sfl->offset, bit_length, BVUNSIGNED); + /* Off by one.. */ + crc = cpu_to_be32(crc + 1); + setbitval(iocur_top->data, sfl->offset, bit_length, &crc); + + /* Temporarily remove write verifier so we can write a bad CRC */ + stashed_ops = iocur_top->bp->b_ops; + nowrite_ops.verify_read = stashed_ops->verify_read; + nowrite_ops.verify_write = xfs_dummy_write_verify; + iocur_top->bp->b_ops = &nowrite_ops; + } + + if (invalidate || recalculate) { + write_cur(); + if (stashed_ops) + iocur_top->bp->b_ops = stashed_ops; + /* re-verify to get proper b_error state */ + iocur_top->bp->b_ops->verify_read(iocur_top->bp); + } + + /* And show us what we've got! */ + flist_print(fl); + print_flist(fl); + flist_free(fl); + return 0; +} diff --git a/db/crc.h b/db/crc.h new file mode 100644 index 0000000..ec1ab8c --- /dev/null +++ b/db/crc.h @@ -0,0 +1,23 @@ +/* + * Copyright (c) 2014 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 + */ + +struct field; + +extern void crc_init(void); +extern void crc_struct(const field_t *fields, int argc, char **argv); +extern void xfs_dummy_write_verify(struct xfs_buf *bp); diff --git a/db/flist.c b/db/flist.c index 33f7da7..fa19f70 100644 --- a/db/flist.c +++ b/db/flist.c @@ -411,6 +411,40 @@ flist_split( return v; } +/* + * Given a set of fields, scan for a field of the given type. + * Return an flist leading to the first found field + * of that type. + * Return NULL if no field of the given type is found. + */ +flist_t * +flist_find_ftyp( + const field_t *fields, + fldt_t type) +{ + flist_t *fl; + const field_t *f; + const ftattr_t *fa; + + for (f = fields; f->name; f++) { + fl = flist_make(f->name); + fl->fld = f; + if (f->ftyp == type) + return fl; + fa = &ftattrtab[f->ftyp]; + if (fa->subfld) { + flist_t *nfl; + nfl = flist_find_ftyp(fa->subfld, type); + if (nfl) { + fl->child = nfl; + return fl; + } + } + flist_free(fl); + } + return NULL; +} + static void ftok_free( ftok_t *ft) diff --git a/db/flist.h b/db/flist.h index 5c9fba0..3f4b312 100644 --- a/db/flist.h +++ b/db/flist.h @@ -37,3 +37,4 @@ extern int flist_parse(const struct field *fields, flist_t *fl, void *obj, int startoff); extern void flist_print(flist_t *fl); extern flist_t *flist_scan(char *name); +extern flist_t *flist_find_ftyp(const field_t *fields, fldt_t type); diff --git a/db/io.c b/db/io.c index 5bf40aa..1ba1f90 100644 --- a/db/io.c +++ b/db/io.c @@ -27,6 +27,7 @@ #include "output.h" #include "init.h" #include "malloc.h" +#include "crc.h" static int pop_f(int argc, char **argv); static void pop_help(void); @@ -464,9 +465,11 @@ write_cur(void) return; } - if (iocur_top->ino_buf) + if (iocur_top->ino_buf && + iocur_top->bp->b_ops->verify_write != xfs_dummy_write_verify) libxfs_dinode_calc_crc(mp, iocur_top->data); - if (iocur_top->dquot_buf) + if (iocur_top->dquot_buf && + iocur_top->bp->b_ops->verify_write != xfs_dummy_write_verify) xfs_update_cksum(iocur_top->data, sizeof(struct xfs_dqblk), XFS_DQUOT_CRC_OFF); if (iocur_top->bbmap) diff --git a/db/write.h b/db/write.h index 31e2665..664ddcc 100644 --- a/db/write.h +++ b/db/write.h @@ -20,5 +20,5 @@ struct field; extern void write_init(void); extern void write_block(const field_t *fields, int argc, char **argv); -extern void write_string(const field_t *fields, int argc, char **argv); extern void write_struct(const field_t *fields, int argc, char **argv); +extern void write_string(const field_t *fields, int argc, char **argv); diff --git a/man/man8/xfs_db.8 b/man/man8/xfs_db.8 index 4d8d4ff..0764832 100644 --- a/man/man8/xfs_db.8 +++ b/man/man8/xfs_db.8 @@ -87,16 +87,14 @@ or .I filename read-only. This option is required if the filesystem is mounted. It is only necessary to omit this flag if a command that changes data -.RB ( write ", " blocktrash ) +.RB ( write ", " blocktrash ", " crc ) is to be used. .TP .B \-x Specifies expert mode. This enables the -.B write -and -.B blocktrash -commands. +.RB ( write ", " blocktrash ", " crc +invalidate/revalidate) commands. .TP .B \-V Prints the version number and exits. @@ -409,6 +407,25 @@ conversions such as .I agb .BR fsblock . .TP +.B crc [\-i|\-r|\-v] +Invalidates, revalidates, or validates the CRC (checksum) +field of the current structure, if it has one. +This command is available only on CRC-enabled filesystems. +With no argument, validation is performed. +Each command will display the resulting CRC value and state. +.RS 1.0i +.TP 0.4i +.B \-i +Invalidate the structure's CRC value (incrementing it by one), +and write it to disk. +.TP +.B \-r +Recalculate the current structure's correct CRC value, and write it to disk. +.TP +.B \-v +Validate and display the current value and state of the structure's CRC. +.RE +.TP .BI "daddr [" d ] Set current address to the daddr (512 byte block) given by .IR d . From david@fromorbit.com Sat Sep 6 17:54:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 9BDED7F3F for ; Sat, 6 Sep 2014 17:54:37 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 1B4C7AC001 for ; Sat, 6 Sep 2014 15:54:33 -0700 (PDT) X-ASG-Debug-ID: 1410044068-04cb6c54fd81eb30001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id b6JycGB2LCecyDBh for ; Sat, 06 Sep 2014 15:54:28 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: At1AAGSPC1R5LKYhPGdsb2JhbABYgw2BKoczqREBAQEGmnCFaQEDAQEBfxcFAQEBATg2hAQBBScTHCMQCAMOCgklDwUlAwcaE4hBvGoBFxiFZIhmIkkHgy+BHQEEnHGXFB6BbisvgQeBSAEBAQ Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail04.adl6.internode.on.net with ESMTP; 07 Sep 2014 08:24:26 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XQOsD-0005Eh-0v; Sun, 07 Sep 2014 08:54:25 +1000 Date: Sun, 7 Sep 2014 08:54:24 +1000 From: Dave Chinner To: Brian Foster Cc: Stefan Priebe - Profihost AG , "xfs@oss.sgi.com" Subject: Re: Is XFS suitable for 350 million files on 20TB storage? Message-ID: <20140906225424.GA9955@dastard> X-ASG-Orig-Subj: Re: Is XFS suitable for 350 million files on 20TB storage? References: <540986B1.4080306@profihost.ag> <20140905123058.GA29710@bfoster.bfoster> <5409AF40.10801@profihost.ag> <20140905230528.GO20473@dastard> <20140906145105.GA23506@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140906145105.GA23506@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1410044068 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9240 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sat, Sep 06, 2014 at 10:51:05AM -0400, Brian Foster wrote: > On Sat, Sep 06, 2014 at 09:05:28AM +1000, Dave Chinner wrote: > > On Fri, Sep 05, 2014 at 02:40:32PM +0200, Stefan Priebe - Profihost AG wrote: > > > > > > Am 05.09.2014 um 14:30 schrieb Brian Foster: > > > > On Fri, Sep 05, 2014 at 11:47:29AM +0200, Stefan Priebe - Profihost AG wrote: > > > >> Hi, > > > >> > > > >> i have a backup system running 20TB of storage having 350 million files. > > > >> This was working fine for month. > > > >> > > > >> But now the free space is so heavily fragmented that i only see the > > > >> kworker with 4x 100% CPU and write speed beeing very slow. 15TB of the > > > >> 20TB are in use. > > > > What does perf tell you about the CPU being burnt? (i.e run perf top > > for 10-20s while that CPU burn is happening and paste the top 10 CPU > > consuming functions). > > > > > >> > > > >> Overall files are 350 Million - all in different directories. Max 5000 > > > >> per dir. > > > >> > > > >> Kernel is 3.10.53 and mount options are: > > > >> noatime,nodiratime,attr2,inode64,logbufs=8,logbsize=256k,noquota > > > >> > > > >> # xfs_db -r -c freesp /dev/sda1 > > > >> from to extents blocks pct > > > >> 1 1 29484138 29484138 2,16 > > > >> 2 3 16930134 39834672 2,92 > > > >> 4 7 16169985 87877159 6,45 > > > >> 8 15 78202543 999838327 73,41 > > > > With an inode size of 256 bytes, this is going to be your real > > problem soon - most of the free space is smaller than an inode > > chunk so soon you won't be able to allocate new inodes, even though > > there is free space on disk. > > > > The extent list here is in fsb units, right? 256b inodes means 16k inode > chunks, in which case it seems like there's still plenty of room for > inode chunks (e.g., 8-15 blocks -> 32k-64k). PEBKAC. My bad. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Sat Sep 6 17:56:58 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 789997F3F for ; Sat, 6 Sep 2014 17:56:58 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 22F42AC001 for ; Sat, 6 Sep 2014 15:56:57 -0700 (PDT) X-ASG-Debug-ID: 1410044215-04bdf010977c26f0001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id oF8uTHVhCTUst5A9 for ; Sat, 06 Sep 2014 15:56:56 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtxAAJmQC1R5LKYhPGdsb2JhbABYgw2BKoczqRIBAQEGmnCFaQEDAQEBfxcFAQEBATg2hAQBBTocIxAIAw4KCSUPBSUDBxoTiEG8agEXGIVkiGYiSQeDL4EdBZxxmSArL4EHgUgBAQE Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail04.adl6.internode.on.net with ESMTP; 07 Sep 2014 08:26:55 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XQOuc-0005FH-QS; Sun, 07 Sep 2014 08:56:54 +1000 Date: Sun, 7 Sep 2014 08:56:54 +1000 From: Dave Chinner To: Brian Foster Cc: Stefan Priebe , "xfs@oss.sgi.com" Subject: Re: Is XFS suitable for 350 million files on 20TB storage? Message-ID: <20140906225654.GB9955@dastard> X-ASG-Orig-Subj: Re: Is XFS suitable for 350 million files on 20TB storage? References: <540986B1.4080306@profihost.ag> <20140905123058.GA29710@bfoster.bfoster> <5409AF40.10801@profihost.ag> <20140905230528.GO20473@dastard> <540AB933.4030707@profihost.ag> <20140906150412.GB23506@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140906150412.GB23506@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1410044215 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9240 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sat, Sep 06, 2014 at 11:04:13AM -0400, Brian Foster wrote: > On Sat, Sep 06, 2014 at 09:35:15AM +0200, Stefan Priebe wrote: > > Hi Dave, > > > > Am 06.09.2014 01:05, schrieb Dave Chinner: > > >On Fri, Sep 05, 2014 at 02:40:32PM +0200, Stefan Priebe - Profihost AG wrote: > > >> > > >>Am 05.09.2014 um 14:30 schrieb Brian Foster: > > >>>On Fri, Sep 05, 2014 at 11:47:29AM +0200, Stefan Priebe - Profihost AG wrote: > > >>>>Hi, > > >>>> > > >>>>i have a backup system running 20TB of storage having 350 million files. > > >>>>This was working fine for month. > > >>>> > > >>>>But now the free space is so heavily fragmented that i only see the > > >>>>kworker with 4x 100% CPU and write speed beeing very slow. 15TB of the > > >>>>20TB are in use. > > > > > >What does perf tell you about the CPU being burnt? (i.e run perf top > > >for 10-20s while that CPU burn is happening and paste the top 10 CPU > > >consuming functions). > > > > here we go: > > 15,79% [kernel] [k] xfs_inobt_get_rec > > 14,57% [kernel] [k] xfs_btree_get_rec > > 10,37% [kernel] [k] xfs_btree_increment > > 7,20% [kernel] [k] xfs_btree_get_block > > 6,13% [kernel] [k] xfs_btree_rec_offset > > 4,90% [kernel] [k] xfs_dialloc_ag > > 3,53% [kernel] [k] xfs_btree_readahead > > 2,87% [kernel] [k] xfs_btree_rec_addr > > 2,80% [kernel] [k] _xfs_buf_find > > 1,94% [kernel] [k] intel_idle > > 1,49% [kernel] [k] _raw_spin_lock > > 1,13% [kernel] [k] copy_pte_range > > 1,10% [kernel] [k] unmap_single_vma > > > > The top 6 or so items look related to inode allocation, so that probably > confirms the primary bottleneck as searching around for free inodes out > of the existing inode chunks, precisely what the finobt is intended to > resolve. That was introduced in 3.16 kernels, so unfortunately it is not > available in 3.10. *nod* Again, the only workaround for this on a non-finobt fs is to greatly increase the number of AGs so there's less records in each btree to search. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Sat Sep 6 18:00:30 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id B69767F3F for ; Sat, 6 Sep 2014 18:00:30 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 96F5D304048 for ; Sat, 6 Sep 2014 16:00:27 -0700 (PDT) X-ASG-Debug-ID: 1410044424-04cbb05486aaa170001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id 6cB7j09490RZCntr for ; Sat, 06 Sep 2014 16:00:25 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: At9AAL2RC1R5LKYhPGdsb2JhbABYgw2BKoczqRIBAQEGmnCFaQEDAQEBfxcFAQEBATg2hAMBAQQBJxMcIwULCAMYCSUPBSUDBxoTiDoHvGoBFxiFZIlRB4MvgR0FnHGMKIsggVgrL4JPAQEB Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail04.adl6.internode.on.net with ESMTP; 07 Sep 2014 08:30:08 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XQOxk-0005Fr-F7; Sun, 07 Sep 2014 09:00:08 +1000 Date: Sun, 7 Sep 2014 09:00:08 +1000 From: Dave Chinner To: Eric Sandeen Cc: xfs-oss Subject: Re: [PATCH 1/2] xfs_db: fix inode CRC validity state, and warn on read if invalid Message-ID: <20140906230008.GC9955@dastard> X-ASG-Orig-Subj: Re: [PATCH 1/2] xfs_db: fix inode CRC validity state, and warn on read if invalid References: <540B4399.4020804@sandeen.net> <540B485F.8070502@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <540B485F.8070502@sandeen.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1410044424 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9240 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sat, Sep 06, 2014 at 12:46:07PM -0500, Eric Sandeen wrote: > Currently, the "ino_crc_ok" field on the io cursor > reflects overall inode validity, not CRC correctness. > Because it is only used when printing CRC validity, > change it to reflect only that. > > In addition, when reading an inode, print the current > CRC state. > > Note, if specifying an inode which doesn't actually > exist, this will claim corruption; I'm not sure if > that's good or bad. Today, it already issues corruption > errors on the way; this adds a new message as well ;) > > xfs_db> inode 129 > Metadata corruption detected at block 0x80/0x2000 > Metadata corruption detected at block 0x80/0x2000 > ... > Metadata CRC error detected for ino 129 > > Signed-off-by: Eric Sandeen > --- > > diff --git a/db/inode.c b/db/inode.c > index 24170ba..244d03b 100644 > --- a/db/inode.c > +++ b/db/inode.c > @@ -684,13 +684,18 @@ set_cur_inode( > numblks, DB_RING_IGN, NULL); > off_cur(offset << mp->m_sb.sb_inodelog, mp->m_sb.sb_inodesize); > dip = iocur_top->data; > - iocur_top->ino_crc_ok = libxfs_dinode_verify(mp, ino, dip); > + iocur_top->ino_crc_ok = xfs_verify_cksum((char *)dip, > + mp->m_sb.sb_inodesize, > + XFS_DINODE_CRC_OFF); that needs to be "libxfs_verify_cksum". > iocur_top->ino_buf = 1; > iocur_top->ino = ino; > iocur_top->mode = be16_to_cpu(dip->di_mode); > if ((iocur_top->mode & S_IFMT) == S_IFDIR) > iocur_top->dirino = ino; > + if (xfs_sb_version_hascrc(&mp->m_sb) && !iocur_top->ino_crc_ok) > + dbprintf(_("Metadata CRC error detected for ino %lld\n"), ino); > + and we probably shoul dbe looking at making all those sb version checks "libxfs_sb_version_has...." as well. > /* track updated info in ring */ > ring_add(); > } > diff --git a/db/io.c b/db/io.c > index 7f1b76a..93ebf5c 100644 > --- a/db/io.c > +++ b/db/io.c > @@ -473,6 +473,17 @@ write_cur(void) > write_cur_bbs(); > else > write_cur_buf(); > + > + if (iocur_top->ino_buf) { > + xfs_dinode_t *dip; > + xfs_ino_t ino; > + > + dip = iocur_top->data; > + ino = iocur_top->ino; > + iocur_top->ino_crc_ok = xfs_verify_cksum((char *)dip, > + mp->m_sb.sb_inodesize, > + XFS_DINODE_CRC_OFF); > + } Needs a comment explaining why we are reverifying the inode crc. Cheers, Dave. -- Dave Chinner david@fromorbit.com From root@krios.tbi.univie.ac.at Sat Sep 6 23:25:10 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BEFB67F47 for ; Sat, 6 Sep 2014 23:25:10 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 4B294AC001 for ; Sat, 6 Sep 2014 21:25:06 -0700 (PDT) X-ASG-Debug-ID: 1410063904-04cbb05487ab5d70001-NocioJ Received: from krios.tbi.univie.ac.at (krios.tbi.univie.ac.at [131.130.44.60]) by cuda.sgi.com with ESMTP id jCi9iiGzLAvSHRAs for ; Sat, 06 Sep 2014 21:25:05 -0700 (PDT) X-Barracuda-Envelope-From: root@krios.tbi.univie.ac.at X-Barracuda-Apparent-Source-IP: 131.130.44.60 Received: by krios.tbi.univie.ac.at (Postfix) id 76DAE5F39C; Sun, 7 Sep 2014 06:25:02 +0200 (CEST) Delivered-To: root@krios.tbi.univie.ac.at Received: by krios.tbi.univie.ac.at (Postfix, from userid 0) id 6730F5F455; Sun, 7 Sep 2014 06:25:02 +0200 (CEST) From: root@krios.tbi.univie.ac.at (Cron Daemon) To: root@krios.tbi.univie.ac.at Subject: Cron test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily ) Content-Type: text/plain; charset=UTF-8 X-ASG-Orig-Subj: Cron test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily ) X-Cron-Env: X-Cron-Env: X-Cron-Env: X-Cron-Env: Message-Id: <20140907042502.6730F5F455@krios.tbi.univie.ac.at> Date: Sun, 7 Sep 2014 06:25:02 +0200 (CEST) X-Barracuda-Connect: krios.tbi.univie.ac.at[131.130.44.60] X-Barracuda-Start-Time: 1410063904 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.70 X-Barracuda-Spam-Status: No, SCORE=0.70 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC0_SA_TO_FROM_ADDR_MATCH, PR0N_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9246 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.20 PR0N_SUBJECT Subject has letters around special characters (pr0n) 0.50 BSF_SC0_SA_TO_FROM_ADDR_MATCH Sender Address Matches Recipient Address /etc/cron.daily/logrotate: error: error opening /home/git/gitlab/log/application.log: Permission denied error: error opening /home/git/gitlab/log/githost.log: Permission denied error: error opening /home/git/gitlab/log/production.log: Permission denied error: error opening /home/git/gitlab/log/satellites.log: Permission denied error: error opening /home/git/gitlab/log/sidekiq.log: Permission denied error: error opening /home/git/gitlab/log/unicorn.stderr.log: Permission denied error: error opening /home/git/gitlab/log/unicorn.stdout.log: Permission denied error: error opening /home/git/gitlab-shell/gitlab-shell.log: Permission denied run-parts: /etc/cron.daily/logrotate exited with return code 1 From stan@hardwarefreak.com Sun Sep 7 00:23:08 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id ECF687F4E for ; Sun, 7 Sep 2014 00:23:07 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 4E662AC004 for ; Sat, 6 Sep 2014 22:23:04 -0700 (PDT) X-ASG-Debug-ID: 1410067382-04cb6c550082aa40001-NocioJ Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id WA88BTSwLx471NBT for ; Sat, 06 Sep 2014 22:23:02 -0700 (PDT) X-Barracuda-Envelope-From: stan@hardwarefreak.com X-Barracuda-Apparent-Source-IP: 65.41.216.221 X-Barracuda-User-Whitelist: xfs@oss.sgi.com Received: from [134.64.128.162] (unknown [192.65.45.20]) by greer.hardwarefreak.com (Postfix) with ESMTPA id 3BD1F6C0B7; Sun, 7 Sep 2014 00:23:01 -0500 (CDT) Message-ID: <540BEBB7.7020306@hardwarefreak.com> Date: Sun, 07 Sep 2014 00:23:03 -0500 From: stan hoeppner User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Icedove/24.7.0 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com Subject: Re: storage, libaio, or XFS problem? 3.4.26 References: <20140828003226.GO20518@dastard> <7f9e5aef187b44e899077467aeb0809d@localhost> <20140828230817.GU20518@dastard> <2d2ce7bb38c00a7d35f4a324f6a36cbb@localhost> <20140829235538.GF20518@dastard> <20140831235749.GH20518@dastard> <5403E9B9.7040608@hardwarefreak.com> <20140901234529.GI20518@dastard> <5405FB19.2020208@hardwarefreak.com> <20140902221915.GK20518@dastard> X-ASG-Orig-Subj: Re: storage, libaio, or XFS problem? 3.4.26 In-Reply-To: <20140902221915.GK20518@dastard> 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: 1410067382 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 09/02/2014 05:19 PM, Dave Chinner wrote: > On Tue, Sep 02, 2014 at 12:15:05PM -0500, stan hoeppner wrote: >> On 09/01/2014 06:45 PM, Dave Chinner wrote: >>> On Sun, Aug 31, 2014 at 10:36:25PM -0500, stan hoeppner wrote: >>>> On 08/31/2014 06:57 PM, Dave Chinner wrote: >>>>> On Fri, Aug 29, 2014 at 09:55:53PM -0500, Stan Hoeppner wrote: >>>>>> Have you played with bcache yet? >>>>> >>>>> Enough to scare me. So many ways for things to go wrong, no easy way >>>>> to recover when things go wrong. And that's before I even get to >>>>> performance warts, like having systems stall completely because >>>>> there's tens or hundreds of GB of 4k random writes that have to be >>>>> flushed to slow SATA RAID6 in the cache.... >>>> >>>> Yikes. I hadn't yet heard such opinions expressed. By go wrong I >>>> assume you mean the btrees or cached sector data getting broken, corrupted? >>> >>> bcache is a complex filesystem hidden inside a block device. If >>> bcache goes AWOL, so does the all the data on your block device. >>> Need I say more? >> >> So it's no different in that regard than the black box implementations >> such as LSI's CacheCade and various SAN vendor SSD caching >> implementations. Or are you saying the bcache code complexity is so >> much greater that failure is more likely that the vendor implementations? > > No, not the code complexity in particular. It's more that compared > to vendor SSD caching implementations there's an awful lot less > testing and validation, and people tend to use random, unreliable > hardware for cache devices. It's great when it works, but the > configuration and validation of correct behaviour in error > conditions falls to the user... Understood. I'm seeing the potential need for a future contract with Kent if we decide to go forward with bcache. He could advise on a testing and validation regimen, optimizing for the workload, and providing code fixes or features to overcome problems. Attempting to use something so new as bcache in a 24x7 commercial workload likely needs author support. >>> screen is your friend when it comes to keeping remote shells >>> active as the network comes and goes. VPN drops out, just bring it >>> back up when you need it and reconnect to the remote screen instance >>> and it's like you never left.... >> >> Thanks for this tip. I'd heard of screen before but never used it. I >> will say the man page is a bit intimidating for such an apparently >> simple tool... > > Yeah, I use about 0.0001% of what screen can do. It could lose most > of it's functionality and I wouldn't notice or care. tmux is another > option for this functionality, but I've never used it because I > found out about screen first... I'd guess there are many utils out there used in the same way. I have some more information regarding the AIO issue. I fired up the test harness and it ran for 30 hours at 706 MB/s avg write rate, 303 MB/s per LUN, nearly flawlessly, less than 0.01% buffer loss, and avg IO times were less than 0.5 seconds. Then the app crashed and I found the following in dmesg. I had to "hard reset" the box due to the shrapnel. There are no IO errors of any kind leading up to the forced shutdown. I assume the inode update and streamRT-sa hung task traces are a result of the forced shutdown, not a cause of it. In lieu of an xfs_repair with a version newer than I'm able to install, any ideas what caused the forced shutdown after 30 hours, given there are no errors preceding it? Sep 6 06:33:33 Anguish-ssu-1 kernel: [288087.334863] XFS (dm-5): xfs_do_force_shutdown(0x8) called from line 3732 of file fs/xfs/xfs_bmap.c. Return address = 0xffffffffa02009a6 Sep 6 06:33:42 Anguish-ssu-1 kernel: [288096.220920] XFS (dm-5): failed to update timestamps for inode 0x2ffc9caae Sep 6 06:33:48 Anguish-ssu-1 kernel: [288102.492641] XFS (dm-5): failed to update timestamps for inode 0x97b7566dd Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599412] INFO: task streamRT-sa:14706 blocked for more than 120 seconds. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599414] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599416] streamRT-sa D ffff883f3c018408 0 14706 14051 0x00000004 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599420] ffff883e6fc09b28 0000000000000086 0000000000000000 ffff8840666f5180 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599425] 0000000000000000 0000000000000000 00000000000122c0 00000000000122c0 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599428] ffff883e6fc09fd8 ffff883e6fc08000 00000000000122c0 ffff883e6fc08000 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599432] Call Trace: Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599441] [] schedule+0x64/0x66 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599443] [] rwsem_down_failed_common+0xdb/0x10d Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599446] [] rwsem_down_write_failed+0x13/0x15 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599451] [] call_rwsem_down_write_failed+0x13/0x20 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599454] [] ? down_write+0x25/0x27 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599466] [] xfs_ilock+0x4f/0xb4 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599472] [] xfs_rw_ilock+0x2c/0x33 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599476] [] ? _raw_spin_unlock_irq+0x27/0x32 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599481] [] xfs_file_aio_write_checks+0x41/0xfe [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599487] [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599493] [] xfs_file_aio_write+0x152/0x1b5 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599499] [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599503] [] aio_rw_vect_retry+0x85/0x18a Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599505] [] ? aio_fsync+0x29/0x29 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599508] [] aio_run_iocb+0x7b/0x149 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599510] [] io_submit_one+0x199/0x1f3 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599513] [] do_io_submit+0xfa/0x271 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599516] [] sys_io_submit+0x10/0x12 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599519] [] system_call_fastpath+0x16/0x1b Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599521] INFO: task streamRT-sa:14713 blocked for more than 120 seconds. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599523] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599524] streamRT-sa D ffff883b4f52ea48 0 14713 14051 0x00000004 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599527] ffff883e74af9b28 0000000000000086 0000000000000000 ffff884066622140 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599530] 0000000000000000 0000000000000000 00000000000122c0 00000000000122c0 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599534] ffff883e74af9fd8 ffff883e74af8000 00000000000122c0 ffff883e74af8000 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599537] Call Trace: Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599540] [] schedule+0x64/0x66 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599542] [] rwsem_down_failed_common+0xdb/0x10d Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599544] [] rwsem_down_write_failed+0x13/0x15 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599547] [] call_rwsem_down_write_failed+0x13/0x20 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599549] [] ? down_write+0x25/0x27 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599555] [] xfs_ilock+0x4f/0xb4 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599561] [] xfs_rw_ilock+0x2c/0x33 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599563] [] ? _raw_spin_unlock_irq+0x27/0x32 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599569] [] xfs_file_aio_write_checks+0x41/0xfe [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599575] [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599580] [] xfs_file_aio_write+0x152/0x1b5 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599586] [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599589] [] aio_rw_vect_retry+0x85/0x18a Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599591] [] ? aio_fsync+0x29/0x29 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599593] [] aio_run_iocb+0x7b/0x149 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599596] [] io_submit_one+0x199/0x1f3 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599598] [] do_io_submit+0xfa/0x271 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599601] [] sys_io_submit+0x10/0x12 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599603] [] system_call_fastpath+0x16/0x1b Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599605] INFO: task streamRT-sa:14723 blocked for more than 120 seconds. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599607] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599608] streamRT-sa D ffff883e754b2b88 0 14723 14051 0x00000004 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599610] ffff883e6fca3b28 0000000000000086 0000000000000000 ffff8840662521c0 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599614] 0000000000000000 0000000000000000 00000000000122c0 00000000000122c0 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599617] ffff883e6fca3fd8 ffff883e6fca2000 00000000000122c0 ffff883e6fca2000 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599620] Call Trace: Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599623] [] schedule+0x64/0x66 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599625] [] rwsem_down_failed_common+0xdb/0x10d Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599628] [] rwsem_down_write_failed+0x13/0x15 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599630] [] call_rwsem_down_write_failed+0x13/0x20 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599632] [] ? down_write+0x25/0x27 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599638] [] xfs_ilock+0x4f/0xb4 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599644] [] xfs_rw_ilock+0x2c/0x33 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599646] [] ? _raw_spin_unlock_irq+0x27/0x32 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599652] [] xfs_file_aio_write_checks+0x41/0xfe [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599657] [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599663] [] xfs_file_aio_write+0x152/0x1b5 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599669] [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599671] [] aio_rw_vect_retry+0x85/0x18a Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599674] [] ? aio_fsync+0x29/0x29 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599676] [] aio_run_iocb+0x7b/0x149 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599678] [] io_submit_one+0x199/0x1f3 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599681] [] do_io_submit+0xfa/0x271 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599684] [] sys_io_submit+0x10/0x12 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599686] [] system_call_fastpath+0x16/0x1b Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599688] INFO: task streamRT-sa:14730 blocked for more than 120 seconds. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599689] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599691] streamRT-sa D ffff883dc2360388 0 14730 14051 0x00000004 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599693] ffff883e6fde1b28 0000000000000086 0000000000000000 ffff884066043080 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599696] 0000000000000000 0000000000000000 00000000000122c0 00000000000122c0 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599700] ffff883e6fde1fd8 ffff883e6fde0000 00000000000122c0 ffff883e6fde0000 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599703] Call Trace: Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599705] [] schedule+0x64/0x66 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599708] [] rwsem_down_failed_common+0xdb/0x10d Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599710] [] rwsem_down_write_failed+0x13/0x15 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599712] [] call_rwsem_down_write_failed+0x13/0x20 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599715] [] ? down_write+0x25/0x27 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599720] [] xfs_ilock+0x4f/0xb4 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599726] [] xfs_rw_ilock+0x2c/0x33 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599728] [] ? _raw_spin_unlock_irq+0x27/0x32 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599734] [] xfs_file_aio_write_checks+0x41/0xfe [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599740] [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599745] [] xfs_file_aio_write+0x152/0x1b5 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599751] [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599754] [] aio_rw_vect_retry+0x85/0x18a Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599756] [] ? aio_fsync+0x29/0x29 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599758] [] aio_run_iocb+0x7b/0x149 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599761] [] io_submit_one+0x199/0x1f3 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599763] [] do_io_submit+0xfa/0x271 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599766] [] sys_io_submit+0x10/0x12 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599768] [] system_call_fastpath+0x16/0x1b Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599770] INFO: task streamRT-sa:14733 blocked for more than 120 seconds. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599771] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599773] streamRT-sa D ffff883e7555cb08 0 14733 14051 0x00000004 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599775] ffff883e7389db28 0000000000000086 0000000000000000 ffff88406663a040 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599778] 0000000000000000 0000000000000000 00000000000122c0 00000000000122c0 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599782] ffff883e7389dfd8 ffff883e7389c000 00000000000122c0 ffff883e7389c000 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599785] Call Trace: Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599787] [] schedule+0x64/0x66 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599790] [] rwsem_down_failed_common+0xdb/0x10d Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599792] [] rwsem_down_write_failed+0x13/0x15 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599794] [] call_rwsem_down_write_failed+0x13/0x20 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599797] [] ? down_write+0x25/0x27 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599802] [] xfs_ilock+0x4f/0xb4 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599808] [] xfs_rw_ilock+0x2c/0x33 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599811] [] ? _raw_spin_unlock_irq+0x27/0x32 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599816] [] xfs_file_aio_write_checks+0x41/0xfe [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599822] [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599827] [] xfs_file_aio_write+0x152/0x1b5 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599833] [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599836] [] aio_rw_vect_retry+0x85/0x18a Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599838] [] ? aio_fsync+0x29/0x29 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599840] [] aio_run_iocb+0x7b/0x149 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599843] [] io_submit_one+0x199/0x1f3 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599845] [] do_io_submit+0xfa/0x271 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599848] [] sys_io_submit+0x10/0x12 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599850] [] system_call_fastpath+0x16/0x1b Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599852] INFO: task streamRT-sa:14736 blocked for more than 120 seconds. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599853] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599855] streamRT-sa D ffff883e73915448 0 14736 14051 0x00000004 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599857] ffff883e73bb5b28 0000000000000086 0000000000000000 ffff884066709080 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599860] 000000025600a331 0000000000000000 00000000000122c0 00000000000122c0 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599864] ffff883e73bb5fd8 ffff883e73bb4000 00000000000122c0 ffff883e73bb4000 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599867] Call Trace: Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599870] [] schedule+0x64/0x66 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599872] [] rwsem_down_failed_common+0xdb/0x10d Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599874] [] rwsem_down_write_failed+0x13/0x15 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599877] [] call_rwsem_down_write_failed+0x13/0x20 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599879] [] ? down_write+0x25/0x27 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599885] [] xfs_ilock+0x4f/0xb4 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599890] [] xfs_rw_ilock+0x2c/0x33 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599892] [] ? _raw_spin_unlock_irq+0x27/0x32 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599898] [] xfs_file_aio_write_checks+0x41/0xfe [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599904] [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599909] [] xfs_file_aio_write+0x152/0x1b5 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599915] [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599918] [] aio_rw_vect_retry+0x85/0x18a Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599920] [] ? aio_fsync+0x29/0x29 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599922] [] aio_run_iocb+0x7b/0x149 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599925] [] io_submit_one+0x199/0x1f3 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599927] [] do_io_submit+0xfa/0x271 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599930] [] sys_io_submit+0x10/0x12 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599932] [] system_call_fastpath+0x16/0x1b Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599934] INFO: task streamRT-sa:14738 blocked for more than 120 seconds. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599936] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599937] streamRT-sa D ffff883f7c605488 0 14738 14051 0x00000004 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599939] ffff883c4cda7b28 0000000000000086 0000000000000000 ffff8840667bd1c0 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599943] 0000000000000000 0000000000000000 00000000000122c0 00000000000122c0 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599946] ffff883c4cda7fd8 ffff883c4cda6000 00000000000122c0 ffff883c4cda6000 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599949] Call Trace: Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599952] [] schedule+0x64/0x66 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599954] [] rwsem_down_failed_common+0xdb/0x10d Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599956] [] rwsem_down_write_failed+0x13/0x15 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599959] [] call_rwsem_down_write_failed+0x13/0x20 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599961] [] ? down_write+0x25/0x27 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599967] [] xfs_ilock+0x4f/0xb4 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599972] [] xfs_rw_ilock+0x2c/0x33 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599975] [] ? _raw_spin_unlock_irq+0x27/0x32 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599980] [] xfs_file_aio_write_checks+0x41/0xfe [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599986] [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599991] [] xfs_file_aio_write+0x152/0x1b5 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.599997] [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600000] [] aio_rw_vect_retry+0x85/0x18a Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600002] [] ? aio_fsync+0x29/0x29 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600004] [] aio_run_iocb+0x7b/0x149 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600007] [] io_submit_one+0x199/0x1f3 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600009] [] do_io_submit+0xfa/0x271 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600012] [] sys_io_submit+0x10/0x12 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600014] [] system_call_fastpath+0x16/0x1b Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600016] INFO: task streamRT-sa:14739 blocked for more than 120 seconds. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600018] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600019] streamRT-sa D ffff883e75536a08 0 14739 14051 0x00000004 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600021] ffff883b4f411b28 0000000000000086 0000000000000000 ffff884066739140 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600025] 0000000000000000 0000000000000000 00000000000122c0 00000000000122c0 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600028] ffff883b4f411fd8 ffff883b4f410000 00000000000122c0 ffff883b4f410000 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600031] Call Trace: Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600034] [] schedule+0x64/0x66 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600036] [] rwsem_down_failed_common+0xdb/0x10d Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600038] [] rwsem_down_write_failed+0x13/0x15 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600041] [] call_rwsem_down_write_failed+0x13/0x20 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600043] [] ? down_write+0x25/0x27 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600048] [] xfs_ilock+0x4f/0xb4 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600054] [] xfs_rw_ilock+0x2c/0x33 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600056] [] ? _raw_spin_unlock_irq+0x27/0x32 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600062] [] xfs_file_aio_write_checks+0x41/0xfe [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600068] [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600073] [] xfs_file_aio_write+0x152/0x1b5 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600079] [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600082] [] aio_rw_vect_retry+0x85/0x18a Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600084] [] ? aio_fsync+0x29/0x29 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600086] [] aio_run_iocb+0x7b/0x149 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600089] [] io_submit_one+0x199/0x1f3 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600091] [] do_io_submit+0xfa/0x271 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600094] [] sys_io_submit+0x10/0x12 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600096] [] system_call_fastpath+0x16/0x1b Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600099] INFO: task streamRT-sa:14768 blocked for more than 120 seconds. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600100] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600101] streamRT-sa D ffff883b5f120308 0 14768 14051 0x00000004 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600104] ffff883cca73bb28 0000000000000086 0000000000000000 ffffffff81813020 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600107] 0000000000000000 0000000000000000 00000000000122c0 00000000000122c0 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600110] ffff883cca73bfd8 ffff883cca73a000 00000000000122c0 ffff883cca73a000 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600113] Call Trace: Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600116] [] schedule+0x64/0x66 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600118] [] rwsem_down_failed_common+0xdb/0x10d Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600120] [] rwsem_down_write_failed+0x13/0x15 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600123] [] call_rwsem_down_write_failed+0x13/0x20 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600125] [] ? down_write+0x25/0x27 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600131] [] xfs_ilock+0x4f/0xb4 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600136] [] xfs_rw_ilock+0x2c/0x33 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600139] [] ? _raw_spin_unlock_irq+0x27/0x32 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600144] [] xfs_file_aio_write_checks+0x41/0xfe [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600150] [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600156] [] xfs_file_aio_write+0x152/0x1b5 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600161] [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600164] [] aio_rw_vect_retry+0x85/0x18a Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600166] [] ? aio_fsync+0x29/0x29 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600168] [] aio_run_iocb+0x7b/0x149 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600171] [] io_submit_one+0x199/0x1f3 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600173] [] do_io_submit+0xfa/0x271 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600176] [] sys_io_submit+0x10/0x12 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600178] [] system_call_fastpath+0x16/0x1b Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600180] INFO: task streamRT-sa:14789 blocked for more than 120 seconds. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600181] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600183] streamRT-sa D ffff883cca430b08 0 14789 14051 0x00000004 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600185] ffff883f3d9c3b28 0000000000000086 0000000000000000 ffff884066739140 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600188] 0000000000000000 0000000000000000 00000000000122c0 00000000000122c0 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600192] ffff883f3d9c3fd8 ffff883f3d9c2000 00000000000122c0 ffff883f3d9c2000 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600195] Call Trace: Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600197] [] schedule+0x64/0x66 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600200] [] rwsem_down_failed_common+0xdb/0x10d Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600202] [] rwsem_down_write_failed+0x13/0x15 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600204] [] call_rwsem_down_write_failed+0x13/0x20 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600207] [] ? down_write+0x25/0x27 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600212] [] xfs_ilock+0x4f/0xb4 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600218] [] xfs_rw_ilock+0x2c/0x33 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600220] [] ? _raw_spin_unlock_irq+0x27/0x32 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600226] [] xfs_file_aio_write_checks+0x41/0xfe [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600231] [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600237] [] xfs_file_aio_write+0x152/0x1b5 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600243] [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600245] [] aio_rw_vect_retry+0x85/0x18a Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600248] [] ? aio_fsync+0x29/0x29 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600250] [] aio_run_iocb+0x7b/0x149 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600252] [] io_submit_one+0x199/0x1f3 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600255] [] do_io_submit+0xfa/0x271 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600258] [] sys_io_submit+0x10/0x12 Sep 6 06:35:41 Anguish-ssu-1 kernel: [288215.600260] [] system_call_fastpath+0x16/0x1b Sep 6 15:42:02 Anguish-ssu-1 kernel: [320925.045195] SysRq : Resetting Thanks, Stan From admin@vista1.magizz.com Sun Sep 7 02:24:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_IMAGE_RATIO_08, HTML_MESSAGE,RCVD_NUMERIC_HELO,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0B5797F51 for ; 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Disclaimer EC014ML1635II
#1330+ garages as on 1st September 2014
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=0Aamj --b1_7b5d98db7db9176126fa1ab7b964fa99-- From bfoster@redhat.com Sun Sep 7 07:26:06 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 76D497F50 for ; Sun, 7 Sep 2014 07:26:06 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 63A128F8059 for ; Sun, 7 Sep 2014 05:26:06 -0700 (PDT) X-ASG-Debug-ID: 1410092761-04cbb05487abe480001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id ZUGku0XNVBL4UNvt (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sun, 07 Sep 2014 05:26:02 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s87CQ1Jh013228 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Sun, 7 Sep 2014 08:26:01 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s87CQ1vk029364 for ; Sun, 7 Sep 2014 08:26:01 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 586261256F8; Sun, 7 Sep 2014 08:26:00 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 0/4] clean up collapse range and handle post-eof delalloc Date: Sun, 7 Sep 2014 08:25:56 -0400 X-ASG-Orig-Subj: [PATCH 0/4] clean up collapse range and handle post-eof delalloc Message-Id: <1410092760-3451-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410092762 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Hi all, Here's a new drop of the patches that tweak collapse to be fsb based and organize the code a bit. This has seen ~1.5b fsx ops without a failure and some light xfstests testing so far. The primary difference from this version and the rfc is the retention of the eofblocks trim prior to collapse. Patch 4 is also new. It isolates the pagecache writeback/truncate in xfs_free_file_space() to the range affected by the free. Thoughts, reviews, flames appreciated. Brian v1: - Retain the eofblocks trim and writeback/inval. the range of shifted data only. - Added the xfs_free_file_space() patch to no longer writeback the entire file. rfc: http://oss.sgi.com/archives/xfs/2014-08/msg00462.html Brian Foster (4): xfs: track collapse via file offset rather than extent index xfs: refactor xfs_bmap_shift_extents() into multiple functions xfs: writeback and inval. file range to be shifted by collapse xfs: only writeback and truncate pages for the freed range fs/xfs/libxfs/xfs_bmap.c | 294 +++++++++++++++++++++++++++++++---------------- fs/xfs/libxfs/xfs_bmap.h | 7 +- fs/xfs/xfs_bmap_util.c | 54 +++++---- 3 files changed, 230 insertions(+), 125 deletions(-) -- 1.8.3.1 From bfoster@redhat.com Sun Sep 7 07:26:07 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 54FCB7F50 for ; Sun, 7 Sep 2014 07:26:07 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id D87E0AC002 for ; Sun, 7 Sep 2014 05:26:06 -0700 (PDT) X-ASG-Debug-ID: 1410092762-04cb6c55008333c0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id IlIcUZlPg69ey4QZ (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sun, 07 Sep 2014 05:26:02 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s87CQ11G009156 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Sun, 7 Sep 2014 08:26:01 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s87CQ1m2030638 for ; Sun, 7 Sep 2014 08:26:01 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 6EC601256FA; Sun, 7 Sep 2014 08:26:00 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 2/4] xfs: refactor xfs_bmap_shift_extents() into multiple functions Date: Sun, 7 Sep 2014 08:25:58 -0400 X-ASG-Orig-Subj: [PATCH 2/4] xfs: refactor xfs_bmap_shift_extents() into multiple functions Message-Id: <1410092760-3451-3-git-send-email-bfoster@redhat.com> In-Reply-To: <1410092760-3451-1-git-send-email-bfoster@redhat.com> References: <1410092760-3451-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410092762 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The extent shift mechanism in xfs_bmap_shift_extents() is complicated and handles several different, non-deterministic scenarios. These include extent shifts, extent merges and potential btree updates in either of the former scenarios. Refactor the code to be more linear and readable. The loop logic in xfs_bmap_shift_extents() and some initial error checking is adjusted slightly. The associated btree lookup and update/delete operations are condensed into single blocks of code. This reduces the number of btree-specific blocks and facilitates the separation of the merge operation into a new xfs_bmap_shift_extents_merge() helper. The merge check is also separated into an inline. This is a code refactor only. The behavior of extent shift and collapse range is not modified. Signed-off-by: Brian Foster --- fs/xfs/libxfs/xfs_bmap.c | 243 ++++++++++++++++++++++++++++++++--------------- 1 file changed, 168 insertions(+), 75 deletions(-) diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 4b3f1b9..449a016 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -5404,6 +5404,120 @@ error0: } /* + * Determine whether an extent shift can be accomplished by a merge with the + * extent that precedes the target hole of the shift. + */ +static inline bool +xfs_bmap_shift_extents_can_merge( + struct xfs_bmbt_irec *left, /* preceding extent */ + struct xfs_bmbt_irec *got, /* current extent to shift */ + xfs_fileoff_t shift) /* shift fsb */ +{ + xfs_fileoff_t startoff; + + startoff = got->br_startoff - shift; + + /* + * The extent, once shifted, must be adjacent in-file and on-disk with + * the preceding extent. + */ + if ((left->br_startoff + left->br_blockcount != startoff) || + (left->br_startblock + left->br_blockcount != got->br_startblock) || + (left->br_state != got->br_state) || + (left->br_blockcount + got->br_blockcount > MAXEXTLEN)) + return false; + + return true; +} + +/* + * An extent shift adjusts the file offset of an extent to fill a preceding hole + * in the file. If an extent shift would result in the extent being fully + * adjacent to the extent that currently precedes the hole, we can merge with + * the preceding extent rather than do the shift. + * + * This function assumes the caller has verified a shift-by-merge is possible + * with the provided extents via xfs_bmap_shift_extents_can_merge(). + */ +static int +xfs_bmap_shift_extents_merge( + struct xfs_inode *ip, + int whichfork, + xfs_fileoff_t shift, /* shift fsb */ + int current_ext, /* idx of gotp */ + struct xfs_bmbt_rec_host *gotp, /* extent to shift */ + struct xfs_bmbt_rec_host *leftp, /* preceding extent */ + struct xfs_btree_cur *cur, + int *logflags) /* output */ +{ + struct xfs_ifork *ifp; + struct xfs_bmbt_irec got; + struct xfs_bmbt_irec left; + xfs_filblks_t blockcount; + int error, i; + + ifp = XFS_IFORK_PTR(ip, whichfork); + xfs_bmbt_get_all(gotp, &got); + xfs_bmbt_get_all(leftp, &left); + blockcount = left.br_blockcount + got.br_blockcount; + + ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL)); + ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); + ASSERT(xfs_bmap_shift_extents_can_merge(&left, &got, shift)); + + /* + * Merge the in-core extents. Note that the host record pointers and + * current_ext index are invalid once the extent has been removed via + * xfs_iext_remove(). + */ + xfs_bmbt_set_blockcount(leftp, blockcount); + xfs_iext_remove(ip, current_ext, 1, 0); + + /* + * Update the on-disk extent count, the btree if necessary and log the + * inode. + */ + XFS_IFORK_NEXT_SET(ip, whichfork, + XFS_IFORK_NEXTENTS(ip, whichfork) - 1); + *logflags |= XFS_ILOG_CORE; + if (cur) { + /* lookup and remove the extent to merge */ + error = xfs_bmbt_lookup_eq(cur, got.br_startoff, + got.br_startblock, got.br_blockcount, &i); + if (error) + goto error; + XFS_WANT_CORRUPTED_GOTO(i == 1, error); + + error = xfs_btree_delete(cur, &i); + if (error) + goto error; + XFS_WANT_CORRUPTED_GOTO(i == 1, error); + + /* lookup and update size of the previous extent */ + error = xfs_bmbt_lookup_eq(cur, left.br_startoff, + left.br_startblock, left.br_blockcount, &i); + if (error) + goto error; + XFS_WANT_CORRUPTED_GOTO(i == 1, error); + + left.br_blockcount = blockcount; + + error = xfs_bmbt_update(cur, left.br_startoff, + left.br_startblock, left.br_blockcount, + left.br_state); + if (error) + goto error; + } else { + *logflags |= XFS_ILOG_DEXT; + } + + return 0; + +error: + return error; +} + +/* * Shift extent records to the left to cover a hole. * * The maximum number of extents to be shifted in a single operation is @@ -5427,6 +5541,7 @@ xfs_bmap_shift_extents( { struct xfs_btree_cur *cur = NULL; struct xfs_bmbt_rec_host *gotp; + struct xfs_bmbt_rec_host *leftp; struct xfs_bmbt_irec got; struct xfs_bmbt_irec left; struct xfs_mount *mp = ip->i_mount; @@ -5438,7 +5553,6 @@ xfs_bmap_shift_extents( int i; int whichfork = XFS_DATA_FORK; int logflags = 0; - xfs_filblks_t blockcount = 0; int total_extents; if (unlikely(XFS_TEST_ERROR( @@ -5464,6 +5578,13 @@ xfs_bmap_shift_extents( return error; } + if (ifp->if_flags & XFS_IFBROOT) { + cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork); + cur->bc_private.b.firstblock = *firstblock; + cur->bc_private.b.flist = flist; + cur->bc_private.b.flags = 0; + } + /* * Look up the extent index for the fsb where we start shifting. We can * henceforth iterate with current_ext as extent list changes are locked @@ -5476,14 +5597,17 @@ xfs_bmap_shift_extents( gotp = xfs_iext_bno_to_ext(ifp, start_fsb, ¤t_ext); if (!gotp) { *done = 1; - return 0; + goto del_cursor; } + xfs_bmbt_get_all(gotp, &got); - if (ifp->if_flags & XFS_IFBROOT) { - cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork); - cur->bc_private.b.firstblock = *firstblock; - cur->bc_private.b.flist = flist; - cur->bc_private.b.flags = 0; + /* + * If the first extent is shifted, offset_shift_fsb cannot be larger + * than the starting offset of the first extent. + */ + if (current_ext == 0 && got.br_startoff < offset_shift_fsb) { + error = -EINVAL; + goto del_cursor; } /* @@ -5493,30 +5617,42 @@ xfs_bmap_shift_extents( */ total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); while (nexts++ < num_exts && current_ext < total_extents) { - - gotp = xfs_iext_get_ext(ifp, current_ext); - xfs_bmbt_get_all(gotp, &got); startoff = got.br_startoff - offset_shift_fsb; - /* - * Before shifting extent into hole, make sure that the hole is - * large enough to accommodate the shift. - */ + /* grab the left extent and check for a potential merge */ if (current_ext > 0) { - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, current_ext - 1), - &left); - if (startoff < left.br_startoff + left.br_blockcount) + leftp = xfs_iext_get_ext(ifp, current_ext - 1); + xfs_bmbt_get_all(leftp, &left); + + /* make sure hole is large enough for shift */ + if (startoff < left.br_startoff + left.br_blockcount) { error = -EINVAL; - } else if (offset_shift_fsb > got.br_startoff) { - /* - * When first extent is shifted, offset_shift_fsb should - * be less than the stating offset of the first extent. - */ - error = -EINVAL; + goto del_cursor; + } + + if (xfs_bmap_shift_extents_can_merge(&left, &got, + offset_shift_fsb)) { + error = xfs_bmap_shift_extents_merge(ip, whichfork, + offset_shift_fsb, current_ext, gotp, + leftp, cur, &logflags); + if (error) + goto del_cursor; + + /* + * The extent was merged so adjust the extent + * index and move onto the next. + */ + current_ext--; + goto next; + } } - if (error) - goto del_cursor; + /* + * We didn't merge the extent so do the shift. Update the start + * offset in the in-core extent and btree, if necessary. + */ + xfs_bmbt_set_startoff(gotp, startoff); + logflags |= XFS_ILOG_CORE; if (cur) { error = xfs_bmbt_lookup_eq(cur, got.br_startoff, got.br_startblock, @@ -5525,53 +5661,8 @@ xfs_bmap_shift_extents( if (error) goto del_cursor; XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); - } - - /* Check if we can merge 2 adjacent extents */ - if (current_ext && - left.br_startoff + left.br_blockcount == startoff && - left.br_startblock + left.br_blockcount == - got.br_startblock && - left.br_state == got.br_state && - left.br_blockcount + got.br_blockcount <= MAXEXTLEN) { - blockcount = left.br_blockcount + - got.br_blockcount; - xfs_iext_remove(ip, current_ext, 1, 0); - logflags |= XFS_ILOG_CORE; - if (cur) { - error = xfs_btree_delete(cur, &i); - if (error) - goto del_cursor; - XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); - } else { - logflags |= XFS_ILOG_DEXT; - } - XFS_IFORK_NEXT_SET(ip, whichfork, - XFS_IFORK_NEXTENTS(ip, whichfork) - 1); - gotp = xfs_iext_get_ext(ifp, --current_ext); - xfs_bmbt_get_all(gotp, &got); - - /* Make cursor point to the extent we will update */ - if (cur) { - error = xfs_bmbt_lookup_eq(cur, got.br_startoff, - got.br_startblock, - got.br_blockcount, - &i); - if (error) - goto del_cursor; - XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); - } - xfs_bmbt_set_blockcount(gotp, blockcount); - got.br_blockcount = blockcount; - } else { - /* We have to update the startoff */ - xfs_bmbt_set_startoff(gotp, startoff); got.br_startoff = startoff; - } - - logflags |= XFS_ILOG_CORE; - if (cur) { error = xfs_bmbt_update(cur, got.br_startoff, got.br_startblock, got.br_blockcount, @@ -5582,18 +5673,20 @@ xfs_bmap_shift_extents( logflags |= XFS_ILOG_DEXT; } - current_ext++; +next: + /* update total extent count and grab the next record */ total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); + if (++current_ext >= total_extents) + break; + gotp = xfs_iext_get_ext(ifp, current_ext); + xfs_bmbt_get_all(gotp, &got); } /* Check if we are done */ if (current_ext == total_extents) *done = 1; - else if (next_fsb) { - gotp = xfs_iext_get_ext(ifp, current_ext); - xfs_bmbt_get_all(gotp, &got); + else if (next_fsb) *next_fsb = got.br_startoff; - } del_cursor: if (cur) -- 1.8.3.1 From bfoster@redhat.com Sun Sep 7 07:26:08 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 52A037F53 for ; Sun, 7 Sep 2014 07:26:08 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id C09B7AC001 for ; Sun, 7 Sep 2014 05:26:04 -0700 (PDT) X-ASG-Debug-ID: 1410092762-04cbb05485abe480001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id cNSbk0P9a55Zoah4 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sun, 07 Sep 2014 05:26:03 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s87CQ1kl013562 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Sun, 7 Sep 2014 08:26:02 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s87CQ1mE030640 for ; Sun, 7 Sep 2014 08:26:01 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 7F1501256FB; Sun, 7 Sep 2014 08:26:00 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 3/4] xfs: writeback and inval. file range to be shifted by collapse Date: Sun, 7 Sep 2014 08:25:59 -0400 X-ASG-Orig-Subj: [PATCH 3/4] xfs: writeback and inval. file range to be shifted by collapse Message-Id: <1410092760-3451-4-git-send-email-bfoster@redhat.com> In-Reply-To: <1410092760-3451-1-git-send-email-bfoster@redhat.com> References: <1410092760-3451-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410092763 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The collapse range operation currently writes the entire file before starting the collapse to avoid changes in the in-core extent list due to writeback causing the extent count to change. Now that collapse range is fsb based rather than extent index based it can sustain changes in the extent list during the shift sequence without disruption. Modify xfs_collapse_file_space() to writeback and invalidate pages associated with the range of the file to be shifted. xfs_free_file_space() currently has similar behavior, but the space free need only affect the region of the file that is freed and this could change in the future. Also update the comments to reflect the current implementation. We retain the eofblocks trim permanently as a best option for dealing with delalloc extents. We don't shift delalloc extents because this scenario only occurs with post-eof preallocation (since data must be flushed such that the cache can be invalidated and data can be shifted). That means said space must also be initialized before being shifted into the accessible region of the file only to be immediately truncated off as the last part of the collapse. In other words, the eofblocks trim will happen anyways, we just run it first to ensure the file remains in a consistent state throughout the collapse. Finally, BUG() in the event of a delalloc extent during the extent shift such that a failure is obvious. The implementation explicitly does not support delalloc extents and the caller is expected to prevent this scenario in advance as is done by collapse. Signed-off-by: Brian Foster --- fs/xfs/libxfs/xfs_bmap.c | 2 ++ fs/xfs/xfs_bmap_util.c | 32 +++++++++++++++++++------------- 2 files changed, 21 insertions(+), 13 deletions(-) diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 449a016..1dd04c2 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -5617,6 +5617,8 @@ xfs_bmap_shift_extents( */ total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); while (nexts++ < num_exts && current_ext < total_extents) { + /* can't handle delalloc extents */ + BUG_ON(isnullstartblock(got.br_startblock)); startoff = got.br_startoff - offset_shift_fsb; /* grab the left extent and check for a potential merge */ diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index 1e96d77..eae763f 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1470,27 +1470,33 @@ xfs_collapse_file_space( next_fsb = XFS_B_TO_FSB(mp, offset + len); shift_fsb = XFS_B_TO_FSB(mp, len); - /* - * Writeback the entire file and force remove any post-eof blocks. The - * writeback prevents changes to the extent list via concurrent - * writeback and the eofblocks trim prevents the extent shift algorithm - * from running into a post-eof delalloc extent. - * - * XXX: This is a temporary fix until the extent shift loop below is - * converted to use offsets and lookups within the ILOCK rather than - * carrying around the index into the extent list for the next - * iteration. - */ - error = filemap_write_and_wait(VFS_I(ip)->i_mapping); + error = xfs_free_file_space(ip, offset, len); if (error) return error; + + /* + * Trim eofblocks to avoid shifting uninitialized post-eof preallocation + * into the accessible region of the file. + */ if (xfs_can_free_eofblocks(ip, true)) { error = xfs_free_eofblocks(mp, ip, false); if (error) return error; } - error = xfs_free_file_space(ip, offset, len); + /* + * Writeback and invalidate cache for the remainder of the file as we're + * about to shift down every extent from the collapse range to EOF. The + * free of the collapse range above might have already done some of + * this, but we shouldn't rely on it to do anything outside of the range + * that was freed. + */ + error = filemap_write_and_wait_range(VFS_I(ip)->i_mapping, + offset + len, -1); + if (error) + return error; + error = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, + (offset + len) >> PAGE_CACHE_SHIFT, -1); if (error) return error; -- 1.8.3.1 From bfoster@redhat.com Sun Sep 7 07:26:06 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7491B7F4E for ; Sun, 7 Sep 2014 07:26:06 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6282F8F8054 for ; Sun, 7 Sep 2014 05:26:06 -0700 (PDT) X-ASG-Debug-ID: 1410092761-04cbb05486abe480001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id AD9bRXLCsSXVKGZH (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sun, 07 Sep 2014 05:26:02 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s87CQ1a3009154 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Sun, 7 Sep 2014 08:26:01 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s87CQ11i030642 for ; Sun, 7 Sep 2014 08:26:01 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 8901E125701; Sun, 7 Sep 2014 08:26:00 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 4/4] xfs: only writeback and truncate pages for the freed range Date: Sun, 7 Sep 2014 08:26:00 -0400 X-ASG-Orig-Subj: [PATCH 4/4] xfs: only writeback and truncate pages for the freed range Message-Id: <1410092760-3451-5-git-send-email-bfoster@redhat.com> In-Reply-To: <1410092760-3451-1-git-send-email-bfoster@redhat.com> References: <1410092760-3451-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410092762 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 xfs_free_file_space() only affects the range of the file for which space is being freed. It currently writes and truncates the page cache from the start offset of the free to EOF. Modify xfs_free_file_space() to write back and truncate page cache of just the range being freed. Signed-off-by: Brian Foster --- fs/xfs/xfs_bmap_util.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index eae763f..809ae7d 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1205,6 +1205,7 @@ xfs_free_file_space( xfs_bmap_free_t free_list; xfs_bmbt_irec_t imap; xfs_off_t ioffset; + xfs_off_t iendoffset; xfs_extlen_t mod=0; xfs_mount_t *mp; int nimap; @@ -1233,12 +1234,13 @@ xfs_free_file_space( inode_dio_wait(VFS_I(ip)); rounding = max_t(xfs_off_t, 1 << mp->m_sb.sb_blocklog, PAGE_CACHE_SIZE); - ioffset = offset & ~(rounding - 1); - error = filemap_write_and_wait_range(VFS_I(ip)->i_mapping, - ioffset, -1); + ioffset = round_down(offset, rounding); + iendoffset = round_up(offset + len, rounding) - 1; + error = filemap_write_and_wait_range(VFS_I(ip)->i_mapping, ioffset, + iendoffset); if (error) goto out; - truncate_pagecache_range(VFS_I(ip), ioffset, -1); + truncate_pagecache_range(VFS_I(ip), ioffset, iendoffset); /* * Need to zero the stuff we're not freeing, on disk. -- 1.8.3.1 From bfoster@redhat.com Sun Sep 7 07:26:08 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 5A24A7F54 for ; Sun, 7 Sep 2014 07:26:08 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id CE984AC002 for ; Sun, 7 Sep 2014 05:26:04 -0700 (PDT) X-ASG-Debug-ID: 1410092762-04cbb05488abe490001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id V4dd3YU5l2MN5YFl (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sun, 07 Sep 2014 05:26:03 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s87CQ1WR013563 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Sun, 7 Sep 2014 08:26:02 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s87CQ13W020833 for ; Sun, 7 Sep 2014 08:26:01 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 63468123B5C; Sun, 7 Sep 2014 08:26:00 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 1/4] xfs: track collapse via file offset rather than extent index Date: Sun, 7 Sep 2014 08:25:57 -0400 X-ASG-Orig-Subj: [PATCH 1/4] xfs: track collapse via file offset rather than extent index Message-Id: <1410092760-3451-2-git-send-email-bfoster@redhat.com> In-Reply-To: <1410092760-3451-1-git-send-email-bfoster@redhat.com> References: <1410092760-3451-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410092763 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The collapse range implementation uses a transaction per extent shift. The progress of the overall operation is tracked via the current extent index of the in-core extent list. This is racy because the ilock must be dropped and reacquired for each transaction according to locking and log reservation rules. Therefore, writeback to prior regions of the file is possible and can change the extent count. This changes the extent to which the current index refers and causes the collapse to fail mid operation. To avoid this problem, the entire file is currently written back before the collapse operation starts. To eliminate the need to flush the entire file, use the file offset (fsb) to track the progress of the overall extent shift operation rather than the extent index. Modify xfs_bmap_shift_extents() to unconditionally convert the start_fsb parameter to an extent index and return the file offset of the extent where the shift left off, if further extents exist. The bulk of ths function can remain based on extent index as ilock is held by the caller. xfs_collapse_file_space() now uses the fsb output as the starting point for the subsequent shift. Signed-off-by: Brian Foster --- fs/xfs/libxfs/xfs_bmap.c | 85 +++++++++++++++++++++++++----------------------- fs/xfs/libxfs/xfs_bmap.h | 7 ++-- fs/xfs/xfs_bmap_util.c | 12 +++---- 3 files changed, 53 insertions(+), 51 deletions(-) diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 86df952..4b3f1b9 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -5406,20 +5406,21 @@ error0: /* * Shift extent records to the left to cover a hole. * - * The maximum number of extents to be shifted in a single operation - * is @num_exts, and @current_ext keeps track of the current extent - * index we have shifted. @offset_shift_fsb is the length by which each - * extent is shifted. If there is no hole to shift the extents - * into, this will be considered invalid operation and we abort immediately. + * The maximum number of extents to be shifted in a single operation is + * @num_exts. @start_fsb specifies the file offset to start the shift and the + * file offset where we've left off is returned in @next_fsb. @offset_shift_fsb + * is the length by which each extent is shifted. If there is no hole to shift + * the extents into, this will be considered invalid operation and we abort + * immediately. */ int xfs_bmap_shift_extents( struct xfs_trans *tp, struct xfs_inode *ip, - int *done, xfs_fileoff_t start_fsb, xfs_fileoff_t offset_shift_fsb, - xfs_extnum_t *current_ext, + int *done, + xfs_fileoff_t *next_fsb, xfs_fsblock_t *firstblock, struct xfs_bmap_free *flist, int num_exts) @@ -5431,6 +5432,7 @@ xfs_bmap_shift_extents( struct xfs_mount *mp = ip->i_mount; struct xfs_ifork *ifp; xfs_extnum_t nexts = 0; + xfs_extnum_t current_ext; xfs_fileoff_t startoff; int error = 0; int i; @@ -5451,7 +5453,8 @@ xfs_bmap_shift_extents( if (XFS_FORCED_SHUTDOWN(mp)) return -EIO; - ASSERT(current_ext != NULL); + ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL)); + ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); ifp = XFS_IFORK_PTR(ip, whichfork); if (!(ifp->if_flags & XFS_IFEXTENTS)) { @@ -5462,20 +5465,18 @@ xfs_bmap_shift_extents( } /* - * If *current_ext is 0, we would need to lookup the extent - * from where we would start shifting and store it in gotp. + * Look up the extent index for the fsb where we start shifting. We can + * henceforth iterate with current_ext as extent list changes are locked + * out via ilock. + * + * gotp can be null in 2 cases: 1) if there are no extents or 2) + * start_fsb lies in a hole beyond which there are no extents. Either + * way, we are done. */ - if (!*current_ext) { - gotp = xfs_iext_bno_to_ext(ifp, start_fsb, current_ext); - /* - * gotp can be null in 2 cases: 1) if there are no extents - * or 2) start_fsb lies in a hole beyond which there are - * no extents. Either way, we are done. - */ - if (!gotp) { - *done = 1; - return 0; - } + gotp = xfs_iext_bno_to_ext(ifp, start_fsb, ¤t_ext); + if (!gotp) { + *done = 1; + return 0; } if (ifp->if_flags & XFS_IFBROOT) { @@ -5487,36 +5488,32 @@ xfs_bmap_shift_extents( /* * There may be delalloc extents in the data fork before the range we - * are collapsing out, so we cannot - * use the count of real extents here. Instead we have to calculate it - * from the incore fork. + * are collapsing out, so we cannot use the count of real extents here. + * Instead we have to calculate it from the incore fork. */ total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); - while (nexts++ < num_exts && *current_ext < total_extents) { + while (nexts++ < num_exts && current_ext < total_extents) { - gotp = xfs_iext_get_ext(ifp, *current_ext); + gotp = xfs_iext_get_ext(ifp, current_ext); xfs_bmbt_get_all(gotp, &got); startoff = got.br_startoff - offset_shift_fsb; /* - * Before shifting extent into hole, make sure that the hole - * is large enough to accomodate the shift. + * Before shifting extent into hole, make sure that the hole is + * large enough to accommodate the shift. */ - if (*current_ext) { - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, - *current_ext - 1), &left); - + if (current_ext > 0) { + xfs_bmbt_get_all(xfs_iext_get_ext(ifp, current_ext - 1), + &left); if (startoff < left.br_startoff + left.br_blockcount) error = -EINVAL; } else if (offset_shift_fsb > got.br_startoff) { /* - * When first extent is shifted, offset_shift_fsb - * should be less than the stating offset of - * the first extent. + * When first extent is shifted, offset_shift_fsb should + * be less than the stating offset of the first extent. */ error = -EINVAL; } - if (error) goto del_cursor; @@ -5531,7 +5528,7 @@ xfs_bmap_shift_extents( } /* Check if we can merge 2 adjacent extents */ - if (*current_ext && + if (current_ext && left.br_startoff + left.br_blockcount == startoff && left.br_startblock + left.br_blockcount == got.br_startblock && @@ -5539,7 +5536,7 @@ xfs_bmap_shift_extents( left.br_blockcount + got.br_blockcount <= MAXEXTLEN) { blockcount = left.br_blockcount + got.br_blockcount; - xfs_iext_remove(ip, *current_ext, 1, 0); + xfs_iext_remove(ip, current_ext, 1, 0); logflags |= XFS_ILOG_CORE; if (cur) { error = xfs_btree_delete(cur, &i); @@ -5551,7 +5548,7 @@ xfs_bmap_shift_extents( } XFS_IFORK_NEXT_SET(ip, whichfork, XFS_IFORK_NEXTENTS(ip, whichfork) - 1); - gotp = xfs_iext_get_ext(ifp, --*current_ext); + gotp = xfs_iext_get_ext(ifp, --current_ext); xfs_bmbt_get_all(gotp, &got); /* Make cursor point to the extent we will update */ @@ -5585,13 +5582,18 @@ xfs_bmap_shift_extents( logflags |= XFS_ILOG_DEXT; } - (*current_ext)++; + current_ext++; total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); } /* Check if we are done */ - if (*current_ext == total_extents) + if (current_ext == total_extents) *done = 1; + else if (next_fsb) { + gotp = xfs_iext_get_ext(ifp, current_ext); + xfs_bmbt_get_all(gotp, &got); + *next_fsb = got.br_startoff; + } del_cursor: if (cur) @@ -5600,5 +5602,6 @@ del_cursor: if (logflags) xfs_trans_log_inode(tp, ip, logflags); + return error; } diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h index b879ca5..44db6db 100644 --- a/fs/xfs/libxfs/xfs_bmap.h +++ b/fs/xfs/libxfs/xfs_bmap.h @@ -178,9 +178,8 @@ int xfs_check_nostate_extents(struct xfs_ifork *ifp, xfs_extnum_t idx, xfs_extnum_t num); uint xfs_default_attroffset(struct xfs_inode *ip); int xfs_bmap_shift_extents(struct xfs_trans *tp, struct xfs_inode *ip, - int *done, xfs_fileoff_t start_fsb, - xfs_fileoff_t offset_shift_fsb, xfs_extnum_t *current_ext, - xfs_fsblock_t *firstblock, struct xfs_bmap_free *flist, - int num_exts); + xfs_fileoff_t start_fsb, xfs_fileoff_t offset_shift_fsb, + int *done, xfs_fileoff_t *next_fsb, xfs_fsblock_t *firstblock, + struct xfs_bmap_free *flist, int num_exts); #endif /* __XFS_BMAP_H__ */ diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index 1707980..1e96d77 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1456,18 +1456,18 @@ xfs_collapse_file_space( struct xfs_mount *mp = ip->i_mount; struct xfs_trans *tp; int error; - xfs_extnum_t current_ext = 0; struct xfs_bmap_free free_list; xfs_fsblock_t first_block; int committed; xfs_fileoff_t start_fsb; + xfs_fileoff_t next_fsb; xfs_fileoff_t shift_fsb; ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL)); trace_xfs_collapse_file_space(ip); - start_fsb = XFS_B_TO_FSB(mp, offset + len); + next_fsb = XFS_B_TO_FSB(mp, offset + len); shift_fsb = XFS_B_TO_FSB(mp, len); /* @@ -1525,10 +1525,10 @@ xfs_collapse_file_space( * We are using the write transaction in which max 2 bmbt * updates are allowed */ - error = xfs_bmap_shift_extents(tp, ip, &done, start_fsb, - shift_fsb, ¤t_ext, - &first_block, &free_list, - XFS_BMAP_MAX_SHIFT_EXTENTS); + start_fsb = next_fsb; + error = xfs_bmap_shift_extents(tp, ip, start_fsb, shift_fsb, + &done, &next_fsb, &first_block, &free_list, + XFS_BMAP_MAX_SHIFT_EXTENTS); if (error) goto out; -- 1.8.3.1 From admin@vista1.magizz.com Sun Sep 7 08:31:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id C21AD7F4E for ; Sun, 7 Sep 2014 08:31:19 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 62A64AC001 for ; 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Thank you From sandeen@sandeen.net Sun Sep 7 11:41:08 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7AF217F4E for ; Sun, 7 Sep 2014 11:41:08 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 659FB8F8039 for ; Sun, 7 Sep 2014 09:41:08 -0700 (PDT) X-ASG-Debug-ID: 1410108066-04cbb05487ac4430001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id YXKVqTLhRtBD6TFy for ; Sun, 07 Sep 2014 09:41:06 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: by sandeen.net (Postfix, from userid 500) id 8303061A5851; Sun, 7 Sep 2014 11:41:06 -0500 (CDT) From: Eric Sandeen To: xfs@oss.sgi.com Subject: [PATCH 0/5] xfs_repair fixes, part 1 Date: Sun, 7 Sep 2014 11:41:00 -0500 X-ASG-Orig-Subj: [PATCH 0/5] xfs_repair fixes, part 1 Message-Id: <1410108065-18156-1-git-send-email-sandeen@redhat.com> X-Mailer: git-send-email 1.7.1 X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410108066 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9258 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- I've been running a modified fsfuzzer and looking at the results of xfs_repair of the corrupt images; plenty of things pop out. I'm calling this "part one" because I expect that I'll find more, but will send things out in digestable chunks as I accumulate them... Most of these are obviously correct and trivial; a coupl require more thought & review. Thanks, -Eric From sandeen@sandeen.net Sun Sep 7 11:41:08 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8D9897F50 for ; Sun, 7 Sep 2014 11:41:08 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 64B5B8F8035 for ; Sun, 7 Sep 2014 09:41:08 -0700 (PDT) X-ASG-Debug-ID: 1410108066-04bdf010977dcc60001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id kAlWteQoyUxGTkl9 for ; Sun, 07 Sep 2014 09:41:07 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: by sandeen.net (Postfix, from userid 500) id 9E0F461A5853; Sun, 7 Sep 2014 11:41:06 -0500 (CDT) From: Eric Sandeen To: xfs@oss.sgi.com Subject: [PATCH 2/5] xfs_repair: preserve error state in process_shortform_attr Date: Sun, 7 Sep 2014 11:41:02 -0500 X-ASG-Orig-Subj: [PATCH 2/5] xfs_repair: preserve error state in process_shortform_attr Message-Id: <1410108065-18156-3-git-send-email-sandeen@redhat.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1410108065-18156-1-git-send-email-sandeen@redhat.com> References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410108067 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9258 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- process_shortform_attr uses the "junkit" error to track whether an error was found, but by assigning it directly to the result of valuecheck, previous errors are ignored, leading to unrepairable errors of the form i.e. "entry has INCOMPLETE flag on in shortform attribute" or "entry contains illegal character in shortform attribute name" Signed-off-by: Eric Sandeen --- repair/attr_repair.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/repair/attr_repair.c b/repair/attr_repair.c index a27a3ec..d60b664 100644 --- a/repair/attr_repair.c +++ b/repair/attr_repair.c @@ -914,7 +914,8 @@ process_shortform_attr( /* Only check values for root security attributes */ if (currententry->flags & XFS_ATTR_ROOT) - junkit = valuecheck(mp, (char *)¤tentry->nameval[0], + junkit |= valuecheck(mp, + (char *)¤tentry->nameval[0], NULL, currententry->namelen, currententry->valuelen); -- 1.7.1 From sandeen@sandeen.net Sun Sep 7 11:41:09 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 417447F4E for ; Sun, 7 Sep 2014 11:41:09 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id B5766AC004 for ; Sun, 7 Sep 2014 09:41:08 -0700 (PDT) X-ASG-Debug-ID: 1410108066-04cbb05485ac4430001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id 8iIw0F9BC2bkM27M for ; Sun, 07 Sep 2014 09:41:06 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: by sandeen.net (Postfix, from userid 500) id BE27061A5855; Sun, 7 Sep 2014 11:41:06 -0500 (CDT) From: Eric Sandeen To: xfs@oss.sgi.com Subject: [PATCH 4/5] xfs_repair: don't ASSERT on corrupt ftype Date: Sun, 7 Sep 2014 11:41:04 -0500 X-ASG-Orig-Subj: [PATCH 4/5] xfs_repair: don't ASSERT on corrupt ftype Message-Id: <1410108065-18156-5-git-send-email-sandeen@redhat.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1410108065-18156-1-git-send-email-sandeen@redhat.com> References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410108066 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9258 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- xfs_dir3_dirent_get_ftype() gets the file type off disk, but ASSERTs if it's invalid: ASSERT(type < XFS_DIR3_FT_MAX); This might be cut & paste from xfs_dir3_dirent_put_ftype which should be checking that it's not been passed bad values, but we shouldn't ASSERT on bad values read from disk. Signed-off-by: Eric Sandeen --- include/xfs_da_format.h | 1 - 1 files changed, 0 insertions(+), 1 deletions(-) diff --git a/include/xfs_da_format.h b/include/xfs_da_format.h index 89a1a21..11f1420 100644 --- a/include/xfs_da_format.h +++ b/include/xfs_da_format.h @@ -561,7 +561,6 @@ xfs_dir3_dirent_get_ftype( if (xfs_sb_version_hasftype(&mp->m_sb)) { __uint8_t type = dep->name[dep->namelen]; - ASSERT(type < XFS_DIR3_FT_MAX); if (type < XFS_DIR3_FT_MAX) return type; -- 1.7.1 From sandeen@sandeen.net Sun Sep 7 11:41:09 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 697BF7F50 for ; Sun, 7 Sep 2014 11:41:09 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 2D2208F8033 for ; Sun, 7 Sep 2014 09:41:09 -0700 (PDT) X-ASG-Debug-ID: 1410108067-04bdf010a17dcc70001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id zavfwSWDH7LbFfdS for ; Sun, 07 Sep 2014 09:41:07 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: by sandeen.net (Postfix, from userid 500) id CC5F661A5856; Sun, 7 Sep 2014 11:41:06 -0500 (CDT) From: Eric Sandeen To: xfs@oss.sgi.com Subject: [PATCH 5/5] xfs_repair: set proper ftype when moving to lost+found Date: Sun, 7 Sep 2014 11:41:05 -0500 X-ASG-Orig-Subj: [PATCH 5/5] xfs_repair: set proper ftype when moving to lost+found Message-Id: <1410108065-18156-6-git-send-email-sandeen@redhat.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1410108065-18156-1-git-send-email-sandeen@redhat.com> References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410108067 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9258 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- When we move files to lost+found, we're setting the filetype to UNKNOWN. This leaves an inconsistency which is discovered on a subsequent repair: would fix ftype mismatch (0/1) in directory/child inode 5838/5839 Setting the proper ftype at the time of the move resolves this: Signed-off-by: Eric Sandeen --- repair/phase6.c | 7 +++++-- 1 files changed, 5 insertions(+), 2 deletions(-) diff --git a/repair/phase6.c b/repair/phase6.c index cc36a9c..02714c2 100644 --- a/repair/phase6.c +++ b/repair/phase6.c @@ -1091,14 +1091,13 @@ mv_orphanage( ino_tree_node_t *irec; int ino_offset = 0; struct xfs_name xname; + __uint16_t di_mode; ASSERT(xfs_sb_version_hasdirv2(&mp->m_sb)); xname.name = fname; xname.len = snprintf((char *)fname, sizeof(fname), "%llu", (unsigned long long)ino); - /* XXX use xfs_mode_to_ftype[] when userspace gains it */ - xname.type = XFS_DIR3_FT_UNKNOWN; err = libxfs_iget(mp, NULL, orphanage_ino, 0, &orphanage_ip, 0); if (err) @@ -1117,6 +1116,10 @@ mv_orphanage( if ((err = libxfs_iget(mp, NULL, ino, 0, &ino_p, 0))) do_error(_("%d - couldn't iget disconnected inode\n"), err); + di_mode = ino_p->i_d.di_mode; + di_mode = (di_mode & S_IFMT) >> S_SHIFT; + xname.type = xfs_mode_to_ftype[di_mode]; + if (isa_dir) { irec = find_inode_rec(mp, XFS_INO_TO_AGNO(mp, orphanage_ino), XFS_INO_TO_AGINO(mp, orphanage_ino)); -- 1.7.1 From sandeen@sandeen.net Sun Sep 7 11:41:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 3D1F07F57 for ; Sun, 7 Sep 2014 11:41:11 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 279028F8033 for ; Sun, 7 Sep 2014 09:41:11 -0700 (PDT) X-ASG-Debug-ID: 1410108066-04cb6c5500839f70001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id KMGNXqrm9647AgSR for ; Sun, 07 Sep 2014 09:41:06 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: by sandeen.net (Postfix, from userid 500) id AF80361A5854; Sun, 7 Sep 2014 11:41:06 -0500 (CDT) From: Eric Sandeen To: xfs@oss.sgi.com Subject: [PATCH 3/5] xfs_repair: fix dir refcount when '.' missing and dir is rebuilt Date: Sun, 7 Sep 2014 11:41:03 -0500 X-ASG-Orig-Subj: [PATCH 3/5] xfs_repair: fix dir refcount when '.' missing and dir is rebuilt Message-Id: <1410108065-18156-4-git-send-email-sandeen@redhat.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1410108065-18156-1-git-send-email-sandeen@redhat.com> References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410108066 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9258 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- In phase 6's longform_dir2_entry_check, if we never find a '.' entry we never add a reference to that entry; if we subsequently rebuild it, '.' gets added, but no ref to it is ever made. This leads to Phase 7 doing i.e.: Phase 7 - verify and correct link counts... resetting inode 5184 nlinks from 2 to 1 and the next run will do: Phase 7 - verify and correct link counts... resetting inode 5184 nlinks from 1 to 2 So if '.' was never found, but the directory got rebuilt, manually add the ref for it. Signed-off-by: Eric Sandeen --- repair/phase6.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/repair/phase6.c b/repair/phase6.c index f13069f..cc36a9c 100644 --- a/repair/phase6.c +++ b/repair/phase6.c @@ -2288,6 +2288,12 @@ out_fix: if (bplist[i]) libxfs_putbuf(bplist[i]); longform_dir2_rebuild(mp, ino, ip, irec, ino_offset, hashtab); + /* + * If we didn't find a dot, we never added a ref for it; + * it's there now after the rebuild, so mark it as reached. + */ + if (*need_dot) + add_inode_ref(irec, ino_offset); *num_illegal = 0; *need_dot = 0; } else { -- 1.7.1 From sandeen@sandeen.net Sun Sep 7 11:41:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 902B77F67 for ; Sun, 7 Sep 2014 11:41:11 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 6545A304032 for ; Sun, 7 Sep 2014 09:41:08 -0700 (PDT) X-ASG-Debug-ID: 1410108066-04cbb05486ac4430001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id BL0XxqGmH1vDU7PL for ; Sun, 07 Sep 2014 09:41:06 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: by sandeen.net (Postfix, from userid 500) id 9016F61A5852; Sun, 7 Sep 2014 11:41:06 -0500 (CDT) From: Eric Sandeen To: xfs@oss.sgi.com Subject: [PATCH 1/5] xfs_repair: clear bad flgs in process_dinode_int Date: Sun, 7 Sep 2014 11:41:01 -0500 X-ASG-Orig-Subj: [PATCH 1/5] xfs_repair: clear bad flgs in process_dinode_int Message-Id: <1410108065-18156-2-git-send-email-sandeen@redhat.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1410108065-18156-1-git-send-email-sandeen@redhat.com> References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410108066 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9258 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- process_dinode_int() reports bad flags if dino->di_flags & ~XFS_DIFLAG_ANY - i.e. if any flags are set outside the known set. But then instead of clearing them, it does flags &= ~XFS_DIFLAG_ANY which keeps *only* the bad flags. This leads to persistent, unrepairable errors of the form: "Bad flags set in inode XXX" Fix this. While we are at it, fix a couple lines which look like they used to be continuation lines, but are no longer. Signed-off-by: Eric Sandeen --- repair/dinode.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/repair/dinode.c b/repair/dinode.c index 8891e84..38a6562 100644 --- a/repair/dinode.c +++ b/repair/dinode.c @@ -2456,7 +2456,7 @@ _("bad (negative) size %" PRId64 " on inode %" PRIu64 "\n"), _("Bad flags set in inode %" PRIu64 "\n"), lino); } - flags &= ~XFS_DIFLAG_ANY; + flags &= XFS_DIFLAG_ANY; } if (flags & (XFS_DIFLAG_REALTIME | XFS_DIFLAG_RTINHERIT)) { @@ -2513,11 +2513,11 @@ _("bad (negative) size %" PRId64 " on inode %" PRIu64 "\n"), } if (!verify_mode && flags != be16_to_cpu(dino->di_flags)) { if (!no_modify) { - do_warn(_(", fixing bad flags.\n")); + do_warn(_("fixing bad flags.\n")); dino->di_flags = cpu_to_be16(flags); *dirty = 1; } else - do_warn(_(", would fix bad flags.\n")); + do_warn(_("would fix bad flags.\n")); } } -- 1.7.1 From sandeen@sandeen.net Sun Sep 7 12:02:15 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4AA457F4E for ; Sun, 7 Sep 2014 12:02:15 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 34A338F8033 for ; Sun, 7 Sep 2014 10:02:12 -0700 (PDT) X-ASG-Debug-ID: 1410109330-04cbb05486ac5110001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id Yk7xD3g7AnUpTVCd for ; Sun, 07 Sep 2014 10:02:11 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id D379761A5851 for ; Sun, 7 Sep 2014 12:02:10 -0500 (CDT) Message-ID: <540C8F92.5050704@sandeen.net> Date: Sun, 07 Sep 2014 12:02:10 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: [PATCH 6/5] xfs_repair: don't re-add root dotdot if root dir was rebuilt References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> X-ASG-Orig-Subj: [PATCH 6/5] xfs_repair: don't re-add root dotdot if root dir was rebuilt In-Reply-To: <1410108065-18156-1-git-send-email-sandeen@redhat.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410109330 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9259 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- If we've rebuilt the root directory, ".." was taken care of, so clear need_root_dotdot. Otherwise it will be added twice, and a subsequent repair will say: entry ".." (ino 5824) in dir 5824 is a duplicate name, would junk entry Signed-off-by: Eric Sandeen --- (sorry for 6/5, this just popped out and is similar to the patch 3/5 I just sent, so probably worth doing at the same time. diff --git a/repair/phase6.c b/repair/phase6.c index cc36a9c..2e67c60 100644 --- a/repair/phase6.c +++ b/repair/phase6.c @@ -2294,6 +2297,9 @@ out_fix: */ if (*need_dot) add_inode_ref(irec, ino_offset); + /* If we rebuilt the root dir, dot dot is in good shape */ + if (ino == mp->m_sb.sb_rootino) + need_root_dotdot = 0; *num_illegal = 0; *need_dot = 0; } else { From sandeen@sandeen.net Sun Sep 7 16:26:20 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D34EE7F4E for ; Sun, 7 Sep 2014 16:26:20 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id B30D58F8033 for ; Sun, 7 Sep 2014 14:26:20 -0700 (PDT) X-ASG-Debug-ID: 1410125170-04bdf0109a7e6000001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id 7H0tln9dnRv5QS78 for ; Sun, 07 Sep 2014 14:26:10 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id D598B610C889; Sun, 7 Sep 2014 16:26:09 -0500 (CDT) Message-ID: <540CCD71.4020507@sandeen.net> Date: Sun, 07 Sep 2014 16:26:09 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Eric Sandeen , xfs@oss.sgi.com Subject: Re: [PATCH 5/5] xfs_repair: set proper ftype when moving to lost+found References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> <1410108065-18156-6-git-send-email-sandeen@redhat.com> X-ASG-Orig-Subj: Re: [PATCH 5/5] xfs_repair: set proper ftype when moving to lost+found In-Reply-To: <1410108065-18156-6-git-send-email-sandeen@redhat.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410125170 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9266 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/7/14 11:41 AM, Eric Sandeen wrote: > When we move files to lost+found, we're setting the > filetype to UNKNOWN. This leaves an inconsistency which > is discovered on a subsequent repair: > > would fix ftype mismatch (0/1) in directory/child inode 5838/5839 > > Setting the proper ftype at the time of the move > resolves this: Ah, arekm points out that Jan already sent a patch to do this: [PATCH] repair: Set ftype for entries in lost+found http://oss.sgi.com/archives/xfs/2014-07/msg00314.html Sorry, missed that. -Eric From david@fromorbit.com Sun Sep 7 18:39:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id A30067F4E for ; Sun, 7 Sep 2014 18:39:17 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 7C1C2304032 for ; Sun, 7 Sep 2014 16:39:17 -0700 (PDT) X-ASG-Debug-ID: 1410133153-04cbb05488acff20001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id qLJfDbKInF0S9oIa for ; Sun, 07 Sep 2014 16:39:14 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvcvAPTrDFR5LKYhPGdsb2JhbABZgw2BKoczqR8BAQEBAQEGmnCFaQEDAQEBgQoXBQEBAQE4N4QEAQU6HCMQCAMYCSUPBSUDBxoTiEG7NQEXGIVkiQhJB4MvgR0FnHGZICsvgQeBSAEBAQ Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail04.adl6.internode.on.net with ESMTP; 08 Sep 2014 09:09:13 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XQm34-0007qr-QS; Mon, 08 Sep 2014 09:39:10 +1000 Date: Mon, 8 Sep 2014 09:39:10 +1000 From: Dave Chinner To: stan hoeppner Cc: xfs@oss.sgi.com Subject: Re: storage, libaio, or XFS problem? 3.4.26 Message-ID: <20140907233910.GA30012@dastard> X-ASG-Orig-Subj: Re: storage, libaio, or XFS problem? 3.4.26 References: <20140828230817.GU20518@dastard> <2d2ce7bb38c00a7d35f4a324f6a36cbb@localhost> <20140829235538.GF20518@dastard> <20140831235749.GH20518@dastard> <5403E9B9.7040608@hardwarefreak.com> <20140901234529.GI20518@dastard> <5405FB19.2020208@hardwarefreak.com> <20140902221915.GK20518@dastard> <540BEBB7.7020306@hardwarefreak.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <540BEBB7.7020306@hardwarefreak.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1410133153 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9268 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sun, Sep 07, 2014 at 12:23:03AM -0500, stan hoeppner wrote: > I have some more information regarding the AIO issue. I fired up the > test harness and it ran for 30 hours at 706 MB/s avg write rate, 303 > MB/s per LUN, nearly flawlessly, less than 0.01% buffer loss, and avg IO > times were less than 0.5 seconds. Then the app crashed and I found the > following in dmesg. I had to "hard reset" the box due to the shrapnel. > There are no IO errors of any kind leading up to the forced shutdown. > I assume the inode update and streamRT-sa hung task traces are a result > of the forced shutdown, not a cause of it. In lieu of an xfs_repair > with a version newer than I'm able to install, any ideas what caused the > forced shutdown after 30 hours, given there are no errors preceding it? > > > Sep 6 06:33:33 Anguish-ssu-1 kernel: [288087.334863] XFS (dm-5): > xfs_do_force_shutdown(0x8) called from line 3732 of file > fs/xfs/xfs_bmap.c. Return address = 0xffffffffa02009a6 > Sep 6 06:33:42 Anguish-ssu-1 kernel: [288096.220920] XFS (dm-5): failed > to update timestamps for inode 0x2ffc9caae Hi Stan, can you need to turn off line wrapping for stuff you paste in? It's all but unreadable when it line wraps like this? Next, you need to turn /proc/sys/fs/xfs/error_level up to 11 so that it dumps a stack trace on corruption events. I don't have a (I can't remember what kernel version you are running) tree in front of me to convert that line number to something meaningful, so it's not a great help... Was there anything in the logs before the shutdown? i.e. can you paste the dmesg output from the start of the test (i.e. the mount of the fs) to the end? As it is, all the traces looke like this: > [] schedule+0x64/0x66 > [] rwsem_down_failed_common+0xdb/0x10d > [] rwsem_down_write_failed+0x13/0x15 > [] call_rwsem_down_write_failed+0x13/0x20 > [] ? down_write+0x25/0x27 > [] xfs_ilock+0x4f/0xb4 [xfs] > [] xfs_rw_ilock+0x2c/0x33 [xfs] > [] ? _raw_spin_unlock_irq+0x27/0x32 > [] xfs_file_aio_write_checks+0x41/0xfe [xfs] > [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] > [] xfs_file_aio_write+0x152/0x1b5 [xfs] > [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] > [] aio_rw_vect_retry+0x85/0x18a > [] ? aio_fsync+0x29/0x29 > [] aio_run_iocb+0x7b/0x149 > [] io_submit_one+0x199/0x1f3 > [] do_io_submit+0xfa/0x271 > [] sys_io_submit+0x10/0x12 > [] system_call_fastpath+0x16/0x1b Which implies that the shutdown didn't unlock the inode correctly. But without knowing what the call stack at the time of the shutdown was, I can't really tell... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Sun Sep 7 19:10:53 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id D78C27F4E for ; Sun, 7 Sep 2014 19:10:53 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 751FBAC004 for ; Sun, 7 Sep 2014 17:10:50 -0700 (PDT) X-ASG-Debug-ID: 1410135047-04cb6c54fe845500001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id yfR4Qt1SZigC7M0n for ; Sun, 07 Sep 2014 17:10:47 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvcvAPHyDFR5LKYhPGdsb2JhbABZgw2BKoczqR8BAQEBAQEGmnCFaQEDAQEBgQoXBQEBAQE4N4QEAQUnExwjEAgDGAklDwUlAwcaE4hBuyUBFxiFZIlRB4MvgR0FnHGMKIx4Ky+CTwEBAQ Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail04.adl6.internode.on.net with ESMTP; 08 Sep 2014 09:40:46 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XQmXc-0007uk-FQ; Mon, 08 Sep 2014 10:10:44 +1000 Date: Mon, 8 Sep 2014 10:10:44 +1000 From: Dave Chinner To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH 4/5] xfs_repair: don't ASSERT on corrupt ftype Message-ID: <20140908001044.GB30012@dastard> X-ASG-Orig-Subj: Re: [PATCH 4/5] xfs_repair: don't ASSERT on corrupt ftype References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> <1410108065-18156-5-git-send-email-sandeen@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1410108065-18156-5-git-send-email-sandeen@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1410135047 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9268 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sun, Sep 07, 2014 at 11:41:04AM -0500, Eric Sandeen wrote: > xfs_dir3_dirent_get_ftype() gets the file type > off disk, but ASSERTs if it's invalid: > > ASSERT(type < XFS_DIR3_FT_MAX); > > This might be cut & paste from > xfs_dir3_dirent_put_ftype which should be checking > that it's not been passed bad values, but we > shouldn't ASSERT on bad values read from disk. > > Signed-off-by: Eric Sandeen > --- > include/xfs_da_format.h | 1 - > 1 files changed, 0 insertions(+), 1 deletions(-) > > diff --git a/include/xfs_da_format.h b/include/xfs_da_format.h > index 89a1a21..11f1420 100644 > --- a/include/xfs_da_format.h > +++ b/include/xfs_da_format.h > @@ -561,7 +561,6 @@ xfs_dir3_dirent_get_ftype( > if (xfs_sb_version_hasftype(&mp->m_sb)) { > __uint8_t type = dep->name[dep->namelen]; > > - ASSERT(type < XFS_DIR3_FT_MAX); > if (type < XFS_DIR3_FT_MAX) > return type; Needs to be fixed kernel-side first. Cheers, Dave. -- Dave Chinner david@fromorbit.com From sandeen@sandeen.net Sun Sep 7 20:02:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 92C9A7F4E for ; Sun, 7 Sep 2014 20:02:26 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 72EAC8F8033 for ; Sun, 7 Sep 2014 18:02:23 -0700 (PDT) X-ASG-Debug-ID: 1410138141-04bdf0109a7ea080001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id 9DkY5ZU4V97taWjI for ; Sun, 07 Sep 2014 18:02:21 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 43CBB610C889; Sun, 7 Sep 2014 20:02:21 -0500 (CDT) Message-ID: <540D001C.6020607@sandeen.net> Date: Sun, 07 Sep 2014 20:02:20 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Dave Chinner , Eric Sandeen CC: xfs@oss.sgi.com Subject: Re: [PATCH 4/5] xfs_repair: don't ASSERT on corrupt ftype References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> <1410108065-18156-5-git-send-email-sandeen@redhat.com> <20140908001044.GB30012@dastard> X-ASG-Orig-Subj: Re: [PATCH 4/5] xfs_repair: don't ASSERT on corrupt ftype In-Reply-To: <20140908001044.GB30012@dastard> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410138141 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9269 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/7/14 7:10 PM, Dave Chinner wrote: > On Sun, Sep 07, 2014 at 11:41:04AM -0500, Eric Sandeen wrote: ... >> diff --git a/include/xfs_da_format.h b/include/xfs_da_format.h >> index 89a1a21..11f1420 100644 >> --- a/include/xfs_da_format.h >> +++ b/include/xfs_da_format.h >> @@ -561,7 +561,6 @@ xfs_dir3_dirent_get_ftype( >> if (xfs_sb_version_hasftype(&mp->m_sb)) { >> __uint8_t type = dep->name[dep->namelen]; >> >> - ASSERT(type < XFS_DIR3_FT_MAX); >> if (type < XFS_DIR3_FT_MAX) >> return type; > > Needs to be fixed kernel-side first. xfs_dir3_dirent_get_ftype doesn't exist in kernelspace :) bleah, why do they have different names... Ok, will send. -Eric > Cheers, > > Dave. > From sandeen@redhat.com Sun Sep 7 20:06:43 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 087277F4E for ; Sun, 7 Sep 2014 20:06:43 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 8C051AC005 for ; Sun, 7 Sep 2014 18:06:39 -0700 (PDT) X-ASG-Debug-ID: 1410138397-04cbb05485ad13f0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id f7ta5HIZ1mzQg91A (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sun, 07 Sep 2014 18:06:38 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8816aPM004074 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Sun, 7 Sep 2014 21:06:36 -0400 Received: from liberator.sandeen.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8816ZeT015328 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Sun, 7 Sep 2014 21:06:36 -0400 Message-ID: <540D011B.2000807@redhat.com> Date: Sun, 07 Sep 2014 20:06:35 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss Subject: [PATCH] xfs: don't ASSERT on corrupt ftype Content-Type: text/plain; charset=utf-8; format=flowed X-ASG-Orig-Subj: [PATCH] xfs: don't ASSERT on corrupt ftype Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410138397 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 xfs_dir3_data_get_ftype() and xfs_dir2_sf_check() get the file type off disk, but ASSERT if it's invalid: ASSERT(type < XFS_DIR3_FT_MAX); This might be cut & paste from the "put" functions, which should be checking that they've not been passed bad values, but we shouldn't ASSERT on bad values read from disk. Signed-off-by: Eric Sandeen --- diff --git a/fs/xfs/libxfs/xfs_da_format.c b/fs/xfs/libxfs/xfs_da_format.c index c9aee52..7e42fdf 100644 --- a/fs/xfs/libxfs/xfs_da_format.c +++ b/fs/xfs/libxfs/xfs_da_format.c @@ -270,7 +270,6 @@ xfs_dir3_data_get_ftype( { __uint8_t ftype = dep->name[dep->namelen]; - ASSERT(ftype < XFS_DIR3_FT_MAX); if (ftype >= XFS_DIR3_FT_MAX) return XFS_DIR3_FT_UNKNOWN; return ftype; diff --git a/fs/xfs/libxfs/xfs_dir2_sf.c b/fs/xfs/libxfs/xfs_dir2_sf.c index 5079e05..ea89250 100644 --- a/fs/xfs/libxfs/xfs_dir2_sf.c +++ b/fs/xfs/libxfs/xfs_dir2_sf.c @@ -635,7 +635,6 @@ xfs_dir2_sf_check( offset = xfs_dir2_sf_get_offset(sfep) + dp->d_ops->data_entsize(sfep->namelen); - ASSERT(dp->d_ops->sf_get_ftype(sfep) < XFS_DIR3_FT_MAX); } ASSERT(i8count == sfp->i8count); ASSERT((char *)sfep - (char *)sfp == dp->i_d.di_size); From david@fromorbit.com Sun Sep 7 22:16:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4E9AD7F4E for ; Sun, 7 Sep 2014 22:16:52 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 2DB938F8039 for ; Sun, 7 Sep 2014 20:16:49 -0700 (PDT) X-ASG-Debug-ID: 1410146206-04bdf0109a7eca50001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id CC3kgWbifR2mP6JX for ; Sun, 07 Sep 2014 20:16:47 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArY4AAMfDVR5LKYhPGdsb2JhbABZgw2BKoczqSEBAgEBAQaacIVpAQMBAQGBDhcFAQEBATg3hAQBBScTHCMQCAMYCSUPBSUDBxoTiEG6dAEXGIVkiVEHhEwFnHGMKIx4Ky+CTwEBAQ Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail06.adl6.internode.on.net with ESMTP; 08 Sep 2014 12:46:46 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XQpRc-0008Et-3h; Mon, 08 Sep 2014 13:16:44 +1000 Date: Mon, 8 Sep 2014 13:16:44 +1000 From: Dave Chinner To: Eric Sandeen Cc: Eric Sandeen , xfs@oss.sgi.com Subject: Re: [PATCH 4/5] xfs_repair: don't ASSERT on corrupt ftype Message-ID: <20140908031644.GZ20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 4/5] xfs_repair: don't ASSERT on corrupt ftype References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> <1410108065-18156-5-git-send-email-sandeen@redhat.com> <20140908001044.GB30012@dastard> <540D001C.6020607@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <540D001C.6020607@sandeen.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1410146206 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9271 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sun, Sep 07, 2014 at 08:02:20PM -0500, Eric Sandeen wrote: > On 9/7/14 7:10 PM, Dave Chinner wrote: > >On Sun, Sep 07, 2014 at 11:41:04AM -0500, Eric Sandeen wrote: > > ... > > >>diff --git a/include/xfs_da_format.h b/include/xfs_da_format.h > >>index 89a1a21..11f1420 100644 > >>--- a/include/xfs_da_format.h > >>+++ b/include/xfs_da_format.h > >>@@ -561,7 +561,6 @@ xfs_dir3_dirent_get_ftype( > >> if (xfs_sb_version_hasftype(&mp->m_sb)) { > >> __uint8_t type = dep->name[dep->namelen]; > >> > >>- ASSERT(type < XFS_DIR3_FT_MAX); > >> if (type < XFS_DIR3_FT_MAX) > >> return type; > > > >Needs to be fixed kernel-side first. > > xfs_dir3_dirent_get_ftype doesn't exist in kernelspace :) > > bleah, why do they have different names... Ok, will send. Because kernel has changed, and we need to do yet another large kernel/user libxfs sync. I haven't found time to do that yet. Unless you want to volunteer for it.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From sandeen@sandeen.net Sun Sep 7 22:18:14 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id DC5F77F4E for ; Sun, 7 Sep 2014 22:18:14 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 7A64AAC004 for ; Sun, 7 Sep 2014 20:18:11 -0700 (PDT) X-ASG-Debug-ID: 1410146289-04cbb05487ad39d0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id Mh3XGqy4WvM6hBgz for ; Sun, 07 Sep 2014 20:18:09 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 3716563D57C0; Sun, 7 Sep 2014 22:18:09 -0500 (CDT) Message-ID: <540D1FF1.4030601@sandeen.net> Date: Sun, 07 Sep 2014 22:18:09 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Dave Chinner CC: Eric Sandeen , xfs@oss.sgi.com Subject: Re: [PATCH 4/5] xfs_repair: don't ASSERT on corrupt ftype References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> <1410108065-18156-5-git-send-email-sandeen@redhat.com> <20140908001044.GB30012@dastard> <540D001C.6020607@sandeen.net> <20140908031644.GZ20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 4/5] xfs_repair: don't ASSERT on corrupt ftype In-Reply-To: <20140908031644.GZ20518@dastard> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410146289 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9271 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/7/14 10:16 PM, Dave Chinner wrote: > On Sun, Sep 07, 2014 at 08:02:20PM -0500, Eric Sandeen wrote: >> On 9/7/14 7:10 PM, Dave Chinner wrote: ... >>> Needs to be fixed kernel-side first. >> >> xfs_dir3_dirent_get_ftype doesn't exist in kernelspace :) >> >> bleah, why do they have different names... Ok, will send. > > Because kernel has changed, and we need to do yet another large > kernel/user libxfs sync. > > I haven't found time to do that yet. Unless you want to volunteer > for it.... I could give it a shot. Do you usually do it commit-by-commit, diff-and-edit, or a big copy? -Eric From david@fromorbit.com Mon Sep 8 01:23:31 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 252037F4E for ; Mon, 8 Sep 2014 01:23:31 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id B784AAC001 for ; Sun, 7 Sep 2014 23:23:27 -0700 (PDT) X-ASG-Debug-ID: 1410157404-04bdf010977f09e0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id bVgIa2gdF8MBdoZe for ; Sun, 07 Sep 2014 23:23:25 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArU4ALlKDVR5LKYhPGdsb2JhbABXgw2BKoczqSQBAgEBAQaacIVpAQMBAQGBDhcFAQEBATg3hAQBBTocIxAIAxgJJQ8FJQMHGhOIQbp7ARcYhWSJUQeDL4EdBZxxjCiMeCsvgk8BAQE Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail06.adl6.internode.on.net with ESMTP; 08 Sep 2014 15:53:24 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XQsME-00007K-19; Mon, 08 Sep 2014 16:23:22 +1000 Date: Mon, 8 Sep 2014 16:23:22 +1000 From: Dave Chinner To: Eric Sandeen Cc: Eric Sandeen , xfs@oss.sgi.com Subject: Re: [PATCH 4/5] xfs_repair: don't ASSERT on corrupt ftype Message-ID: <20140908062321.GA20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 4/5] xfs_repair: don't ASSERT on corrupt ftype References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> <1410108065-18156-5-git-send-email-sandeen@redhat.com> <20140908001044.GB30012@dastard> <540D001C.6020607@sandeen.net> <20140908031644.GZ20518@dastard> <540D1FF1.4030601@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <540D1FF1.4030601@sandeen.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1410157405 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9275 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sun, Sep 07, 2014 at 10:18:09PM -0500, Eric Sandeen wrote: > On 9/7/14 10:16 PM, Dave Chinner wrote: > >On Sun, Sep 07, 2014 at 08:02:20PM -0500, Eric Sandeen wrote: > >>On 9/7/14 7:10 PM, Dave Chinner wrote: > > ... > > >>>Needs to be fixed kernel-side first. > >> > >>xfs_dir3_dirent_get_ftype doesn't exist in kernelspace :) > >> > >>bleah, why do they have different names... Ok, will send. > > > >Because kernel has changed, and we need to do yet another large > >kernel/user libxfs sync. > > > >I haven't found time to do that yet. Unless you want to volunteer > >for it.... > > I could give it a shot. Do you usually do it commit-by-commit, > diff-and-edit, or a big copy? This one is going to need multiple phases, and in a moment you're going to understand what all functions called into libxfs should have a "libxfs define wrapper": 1. sync up to kernel commit before error negation 2. make sure all external function calls have libxfs define wrappers 3. commit error negation patch and change sign of all libxfs define wrappers 4. apply kernel libxfs rename patch and restructure libxfs userspace and xfsprogs build to match 5. continue syncing kernel changes commit by commit. Given the scope of changes, and the fact that some of the changes have already been applied (i.e. bug fixes, finobt changes, etc) step #1 is not going to be a straight forward commit-by-commit. So I'm happy to do that as a bulk commit. Steps #2 and #3 are relatively straight forward, too, just a bit painful as we need to be sure we don't leak negative errors. Step #4 is the big one; we want to end up with the kernel fs/xfs/libxfs to be identical to the xfsprogs:/libxfs/ code and so in userspace we've got to move headers around and rejig includes and things like that. That's one I should probably do. And from there, step 5 should be a simple extract/sed/commit process of pulling patch by patch from the kernel changes that touch fs/xfs/libxfs.... So, really, the big step right now is #1... Cheers, Dave. -- Dave Chinner david@fromorbit.com From s.priebe@profihost.ag Mon Sep 8 03:36:01 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1D5667F4E for ; Mon, 8 Sep 2014 03:36:01 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 84E0BAC006 for ; Mon, 8 Sep 2014 01:36:00 -0700 (PDT) X-ASG-Debug-ID: 1410165357-04cb6c54ff84f9c0001-NocioJ Received: from mail-ph.de-nserver.de (mail-ph.de-nserver.de [85.158.179.214]) by cuda.sgi.com with ESMTP id 8nsJXNHI6YEaFaRR (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 08 Sep 2014 01:35:58 -0700 (PDT) X-Barracuda-Envelope-From: s.priebe@profihost.ag X-Barracuda-Apparent-Source-IP: 85.158.179.214 Received: (qmail 12091 invoked from network); 8 Sep 2014 10:35:57 +0200 X-Fcrdns: No Received: from phoffice.de-nserver.de (HELO [10.11.11.93]) (185.39.223.5) (smtp-auth username hostmaster@profihost.com, mechanism plain) by mail-ph.de-nserver.de (qpsmtpd/0.92) with (ECDHE-RSA-AES256-SHA encrypted) ESMTPSA; Mon, 08 Sep 2014 10:35:57 +0200 Message-ID: <540D6A6C.9090801@profihost.ag> Date: Mon, 08 Sep 2014 10:35:56 +0200 From: Stefan Priebe - Profihost AG User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0 MIME-Version: 1.0 To: Dave Chinner , Brian Foster CC: "xfs@oss.sgi.com" Subject: Re: Is XFS suitable for 350 million files on 20TB storage? References: <540986B1.4080306@profihost.ag> <20140905123058.GA29710@bfoster.bfoster> <5409AF40.10801@profihost.ag> <20140905230528.GO20473@dastard> <540AB933.4030707@profihost.ag> <20140906150412.GB23506@bfoster.bfoster> <20140906225654.GB9955@dastard> X-ASG-Orig-Subj: Re: Is XFS suitable for 350 million files on 20TB storage? In-Reply-To: <20140906225654.GB9955@dastard> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-User-Auth: Auth by hostmaster@profihost.com through 185.39.223.5 X-Barracuda-Connect: mail-ph.de-nserver.de[85.158.179.214] X-Barracuda-Start-Time: 1410165358 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9277 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Thanks, upgraded to 3.16.2 and xfsprogs 3.2.1. Let's see how it behaves with finobt. Greets, Stefan Am 07.09.2014 um 00:56 schrieb Dave Chinner: > On Sat, Sep 06, 2014 at 11:04:13AM -0400, Brian Foster wrote: >> On Sat, Sep 06, 2014 at 09:35:15AM +0200, Stefan Priebe wrote: >>> Hi Dave, >>> >>> Am 06.09.2014 01:05, schrieb Dave Chinner: >>>> On Fri, Sep 05, 2014 at 02:40:32PM +0200, Stefan Priebe - Profihost AG wrote: >>>>> >>>>> Am 05.09.2014 um 14:30 schrieb Brian Foster: >>>>>> On Fri, Sep 05, 2014 at 11:47:29AM +0200, Stefan Priebe - Profihost AG wrote: >>>>>>> Hi, >>>>>>> >>>>>>> i have a backup system running 20TB of storage having 350 million files. >>>>>>> This was working fine for month. >>>>>>> >>>>>>> But now the free space is so heavily fragmented that i only see the >>>>>>> kworker with 4x 100% CPU and write speed beeing very slow. 15TB of the >>>>>>> 20TB are in use. >>>> >>>> What does perf tell you about the CPU being burnt? (i.e run perf top >>>> for 10-20s while that CPU burn is happening and paste the top 10 CPU >>>> consuming functions). >>> >>> here we go: >>> 15,79% [kernel] [k] xfs_inobt_get_rec >>> 14,57% [kernel] [k] xfs_btree_get_rec >>> 10,37% [kernel] [k] xfs_btree_increment >>> 7,20% [kernel] [k] xfs_btree_get_block >>> 6,13% [kernel] [k] xfs_btree_rec_offset >>> 4,90% [kernel] [k] xfs_dialloc_ag >>> 3,53% [kernel] [k] xfs_btree_readahead >>> 2,87% [kernel] [k] xfs_btree_rec_addr >>> 2,80% [kernel] [k] _xfs_buf_find >>> 1,94% [kernel] [k] intel_idle >>> 1,49% [kernel] [k] _raw_spin_lock >>> 1,13% [kernel] [k] copy_pte_range >>> 1,10% [kernel] [k] unmap_single_vma >>> >> >> The top 6 or so items look related to inode allocation, so that probably >> confirms the primary bottleneck as searching around for free inodes out >> of the existing inode chunks, precisely what the finobt is intended to >> resolve. That was introduced in 3.16 kernels, so unfortunately it is not >> available in 3.10. > > *nod* > > Again, the only workaround for this on a non-finobt fs is to greatly > increase the number of AGs so there's less records in each btree to > search. > > Cheers, > > Dave. > From david@fromorbit.com Mon Sep 8 04:47:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 564B67F4E for ; Mon, 8 Sep 2014 04:47:19 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 366668F8040 for ; Mon, 8 Sep 2014 02:47:16 -0700 (PDT) X-ASG-Debug-ID: 1410169633-04cb6c54fe851ba0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id epdsR31eE5pxGU4g for ; Mon, 08 Sep 2014 02:47:14 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AkkqAKZ6DVR5LKYh/2dsb2JhbABZgw2BKrBWAQIBAQEGmnCFaQEDAQEBgRQXeIQEAQU6HCMQCAMYCSUPBSUDIROIQbtTARcYhWSJCAdCB4MvgR0BBJxxlS2DcysvgQcBHoEpAQEB Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail07.adl2.internode.on.net with ESMTP; 08 Sep 2014 19:17:12 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XQvXH-0000aH-9T; Mon, 08 Sep 2014 19:46:59 +1000 Date: Mon, 8 Sep 2014 19:46:59 +1000 From: Dave Chinner To: Stefan Priebe - Profihost AG Cc: Brian Foster , "xfs@oss.sgi.com" Subject: Re: Is XFS suitable for 350 million files on 20TB storage? Message-ID: <20140908094659.GC30012@dastard> X-ASG-Orig-Subj: Re: Is XFS suitable for 350 million files on 20TB storage? References: <540986B1.4080306@profihost.ag> <20140905123058.GA29710@bfoster.bfoster> <5409AF40.10801@profihost.ag> <20140905230528.GO20473@dastard> <540AB933.4030707@profihost.ag> <20140906150412.GB23506@bfoster.bfoster> <20140906225654.GB9955@dastard> <540D6A6C.9090801@profihost.ag> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <540D6A6C.9090801@profihost.ag> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1410169633 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9278 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Sep 08, 2014 at 10:35:56AM +0200, Stefan Priebe - Profihost AG wrote: > Thanks, > > upgraded to 3.16.2 and xfsprogs 3.2.1. Let's see how it behaves with finobt. You need to mkfs the filesystem to use finobt - it's not something that an upgrade will just switch on. i.e. # mkfs.xfs -m crc=1,finobt=1 Cheers, Dave. -- Dave Chinner david@fromorbit.com From s.priebe@profihost.ag Mon Sep 8 04:49:23 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E1A1C7F4E for ; Mon, 8 Sep 2014 04:49:23 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id CEBE68F8040 for ; Mon, 8 Sep 2014 02:49:23 -0700 (PDT) X-ASG-Debug-ID: 1410169761-04cb6c5500851ce0001-NocioJ Received: from mail-ph.de-nserver.de (mail-ph.de-nserver.de [85.158.179.214]) by cuda.sgi.com with ESMTP id N7c3WwZzxpPu9DWf (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 08 Sep 2014 02:49:22 -0700 (PDT) X-Barracuda-Envelope-From: s.priebe@profihost.ag X-Barracuda-Apparent-Source-IP: 85.158.179.214 Received: (qmail 3600 invoked from network); 8 Sep 2014 11:49:20 +0200 X-Fcrdns: No Received: from phoffice.de-nserver.de (HELO [10.11.11.93]) (185.39.223.5) (smtp-auth username hostmaster@profihost.com, mechanism plain) by mail-ph.de-nserver.de (qpsmtpd/0.92) with (ECDHE-RSA-AES256-SHA encrypted) ESMTPSA; Mon, 08 Sep 2014 11:49:20 +0200 Message-ID: <540D7BA0.6090107@profihost.ag> Date: Mon, 08 Sep 2014 11:49:20 +0200 From: Stefan Priebe - Profihost AG User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0 MIME-Version: 1.0 To: Dave Chinner CC: Brian Foster , "xfs@oss.sgi.com" Subject: Re: Is XFS suitable for 350 million files on 20TB storage? References: <540986B1.4080306@profihost.ag> <20140905123058.GA29710@bfoster.bfoster> <5409AF40.10801@profihost.ag> <20140905230528.GO20473@dastard> <540AB933.4030707@profihost.ag> <20140906150412.GB23506@bfoster.bfoster> <20140906225654.GB9955@dastard> <540D6A6C.9090801@profihost.ag> <20140908094659.GC30012@dastard> X-ASG-Orig-Subj: Re: Is XFS suitable for 350 million files on 20TB storage? In-Reply-To: <20140908094659.GC30012@dastard> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-User-Auth: Auth by hostmaster@profihost.com through 185.39.223.5 X-Barracuda-Connect: mail-ph.de-nserver.de[85.158.179.214] X-Barracuda-Start-Time: 1410169762 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9278 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Am 08.09.2014 um 11:46 schrieb Dave Chinner: > On Mon, Sep 08, 2014 at 10:35:56AM +0200, Stefan Priebe - Profihost AG wrote: >> Thanks, >> >> upgraded to 3.16.2 and xfsprogs 3.2.1. Let's see how it behaves with finobt. > > You need to mkfs the filesystem to use finobt - it's not something > that an upgrade will just switch on. i.e. > > # mkfs.xfs -m crc=1,finobt=1 Sure i also did a reformat using "-m crc=1,finobt=1". Stefan > Cheers, > > Dave. > From david@fromorbit.com Mon Sep 8 05:48:12 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 6D0A17F4E for ; Mon, 8 Sep 2014 05:48:12 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 5AA668F8039 for ; Mon, 8 Sep 2014 03:48:09 -0700 (PDT) X-ASG-Debug-ID: 1410173283-04cbb05486adfb70001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id Y5AIPJYOAuCT0Ldf for ; Mon, 08 Sep 2014 03:48:03 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjsgAMiIDVR5LKYh/2dsb2JhbABZgw2BKoIsrjAGmm+FaQEDAQEBgRQXeIQEAQU6HCMQCAMOCgklDwUlAyETiEG7MQEXGIVkiQRNB4RMBZxxlS2CG4FYKy+BB4FIAQEB Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail07.adl2.internode.on.net with ESMTP; 08 Sep 2014 20:18:02 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XQwU9-0000mv-Iv; Mon, 08 Sep 2014 20:47:49 +1000 Date: Mon, 8 Sep 2014 20:47:49 +1000 From: Dave Chinner To: Brian Foster Cc: fstests@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [PATCH 2/2] xfs/051: test buffer use after free race on I/O failure in XFS log recovery Message-ID: <20140908104749.GI30012@dastard> X-ASG-Orig-Subj: Re: [PATCH 2/2] xfs/051: test buffer use after free race on I/O failure in XFS log recovery References: <1409667761-50248-1-git-send-email-bfoster@redhat.com> <1409667761-50248-3-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409667761-50248-3-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1410173283 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9279 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words On Tue, Sep 02, 2014 at 10:22:41AM -0400, Brian Foster wrote: > A buffer use after free race was discovered in the XFS log recovery > codepath if I/O failures occur during recovery. The I/O submission path > can abort the mount and release the only reference held on some buffers > before I/O completion processing (e.g., async workqueue processing) > might have completed. Badness ensues if the I/O completion path > subsequently attempts to access said buffers. ..... > > case goes to Alex Lyakas. > index 4d35df5..9784dea 100644 > --- a/tests/xfs/group > +++ b/tests/xfs/group > @@ -47,6 +47,7 @@ > 048 other auto quick > 049 rw auto quick > 050 quota auto quick > +051 dangerous I'm going to consider this auto/log/metadata rather than dangerous. Once the bug is fixed, we want to continue running this test as a regression test, and nobody does that with the dangerous group.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From bfoster@redhat.com Mon Sep 8 07:03:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 45F9F7F4E for ; Mon, 8 Sep 2014 07:03:45 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 261368F8033 for ; Mon, 8 Sep 2014 05:03:41 -0700 (PDT) X-ASG-Debug-ID: 1410177820-04bdf0109a7fc560001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 8ie6vAjgCl7F3FHD (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 08 Sep 2014 05:03:41 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s88C3dEw023957 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Mon, 8 Sep 2014 08:03:40 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s88C3dlV018647; Mon, 8 Sep 2014 08:03:39 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 899721256F8; Mon, 8 Sep 2014 08:03:38 -0400 (EDT) Date: Mon, 8 Sep 2014 08:03:38 -0400 From: Brian Foster To: Eric Sandeen Cc: xfs-oss Subject: Re: [PATCH] xfs: don't ASSERT on corrupt ftype Message-ID: <20140908120336.GA50018@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs: don't ASSERT on corrupt ftype References: <540D011B.2000807@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <540D011B.2000807@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410177821 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sun, Sep 07, 2014 at 08:06:35PM -0500, Eric Sandeen wrote: > xfs_dir3_data_get_ftype() and xfs_dir2_sf_check() get > the file type off disk, but ASSERT if it's invalid: > > ASSERT(type < XFS_DIR3_FT_MAX); > > This might be cut & paste from the "put" functions, > which should be checking that they've not been passed > bad values, but we shouldn't ASSERT on bad values > read from disk. > Does this lead to a problem of some kind in a valid configuration? > Signed-off-by: Eric Sandeen > --- > > diff --git a/fs/xfs/libxfs/xfs_da_format.c b/fs/xfs/libxfs/xfs_da_format.c > index c9aee52..7e42fdf 100644 > --- a/fs/xfs/libxfs/xfs_da_format.c > +++ b/fs/xfs/libxfs/xfs_da_format.c > @@ -270,7 +270,6 @@ xfs_dir3_data_get_ftype( > { > __uint8_t ftype = dep->name[dep->namelen]; > - ASSERT(ftype < XFS_DIR3_FT_MAX); > if (ftype >= XFS_DIR3_FT_MAX) > return XFS_DIR3_FT_UNKNOWN; > return ftype; > diff --git a/fs/xfs/libxfs/xfs_dir2_sf.c b/fs/xfs/libxfs/xfs_dir2_sf.c > index 5079e05..ea89250 100644 > --- a/fs/xfs/libxfs/xfs_dir2_sf.c > +++ b/fs/xfs/libxfs/xfs_dir2_sf.c > @@ -635,7 +635,6 @@ xfs_dir2_sf_check( > offset = > xfs_dir2_sf_get_offset(sfep) + > dp->d_ops->data_entsize(sfep->namelen); > - ASSERT(dp->d_ops->sf_get_ftype(sfep) < XFS_DIR3_FT_MAX); This one is a DEBUG mode only function and the comment suggests the intent is to assert on directory inconsistency..? Brian > } > ASSERT(i8count == sfp->i8count); > ASSERT((char *)sfep - (char *)sfp == dp->i_d.di_size); > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From david@fromorbit.com Mon Sep 8 08:05:29 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id AFDF97F51 for ; Mon, 8 Sep 2014 08:05:29 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 8FD50304039 for ; Mon, 8 Sep 2014 06:05:26 -0700 (PDT) X-ASG-Debug-ID: 1410181520-04bdf010a07ff450001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id fVWRQPkfBqmnRqQO for ; Mon, 08 Sep 2014 06:05:21 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Aj0gAG6oDVR5LKYh/2dsb2JhbABZgw2BKoIsrjAGmm+FaQEDAQEBgREXeIQDAQEEAScTHCMFCwgDGAklDwUlAyETiDoHun8BFxiFZIlRB4RMBZxxlS2DcysvgQgkgSMBAQE Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail07.adl2.internode.on.net with ESMTP; 08 Sep 2014 22:35:20 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XQyd1-0001BF-5o; Mon, 08 Sep 2014 23:05:07 +1000 Date: Mon, 8 Sep 2014 23:05:07 +1000 From: Dave Chinner To: Eric Sandeen Cc: xfs-oss Subject: Re: [PATCH] xfs: don't ASSERT on corrupt ftype Message-ID: <20140908130507.GN30012@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs: don't ASSERT on corrupt ftype References: <540D011B.2000807@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <540D011B.2000807@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1410181520 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9281 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sun, Sep 07, 2014 at 08:06:35PM -0500, Eric Sandeen wrote: > xfs_dir3_data_get_ftype() and xfs_dir2_sf_check() get > the file type off disk, but ASSERT if it's invalid: > > ASSERT(type < XFS_DIR3_FT_MAX); > > This might be cut & paste from the "put" functions, > which should be checking that they've not been passed > bad values, but we shouldn't ASSERT on bad values > read from disk. No, they weren't cut-n-paste from the put functions. They were actually designed for a metadata block where bad values would not be written to disk, and corrupted disk blocks would be detected by CRC validation failures. So on debug kernels it's quite appropriate to assert fail on a "should never, ever happen" condition. Then the v4 ftype feature bit was rammed in but none of the code got changed to reflect that the values in the ftype fields are not CRC protected on v4 filesystems.... > diff --git a/fs/xfs/libxfs/xfs_dir2_sf.c b/fs/xfs/libxfs/xfs_dir2_sf.c > index 5079e05..ea89250 100644 > --- a/fs/xfs/libxfs/xfs_dir2_sf.c > +++ b/fs/xfs/libxfs/xfs_dir2_sf.c > @@ -635,7 +635,6 @@ xfs_dir2_sf_check( > offset = > xfs_dir2_sf_get_offset(sfep) + > dp->d_ops->data_entsize(sfep->namelen); > - ASSERT(dp->d_ops->sf_get_ftype(sfep) < XFS_DIR3_FT_MAX); > } > ASSERT(i8count == sfp->i8count); > ASSERT((char *)sfep - (char *)sfp == dp->i_d.di_size); That's a debug only function validating that the shortform directory is internally consistent. And as the comment says: /* * Check consistency of shortform directory, assert if bad. */ So that assert should remain because it's checking the in-memory state immediately before, during and after modifications are made to the directory, not when it has just been read of disk.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From bfoster@redhat.com Mon Sep 8 08:45:18 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 8E0407F4E for ; Mon, 8 Sep 2014 08:45:18 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 7C698304039 for ; Mon, 8 Sep 2014 06:45:18 -0700 (PDT) X-ASG-Debug-ID: 1410183913-04cb6c54fe85b760001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id HzPDip6jJKyjY2JC (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 08 Sep 2014 06:45:14 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s88DjDOH001935 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Mon, 8 Sep 2014 09:45:13 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s88DjDQQ005008; Mon, 8 Sep 2014 09:45:13 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 3F38A1256F8; Mon, 8 Sep 2014 09:45:12 -0400 (EDT) Date: Mon, 8 Sep 2014 09:45:12 -0400 From: Brian Foster To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/5] xfs_repair: clear bad flgs in process_dinode_int Message-ID: <20140908134510.GA52419@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 1/5] xfs_repair: clear bad flgs in process_dinode_int References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> <1410108065-18156-2-git-send-email-sandeen@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1410108065-18156-2-git-send-email-sandeen@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410183914 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sun, Sep 07, 2014 at 11:41:01AM -0500, Eric Sandeen wrote: > process_dinode_int() reports bad flags if > dino->di_flags & ~XFS_DIFLAG_ANY - i.e. if > any flags are set outside the known set. But > then instead of clearing them, it does > flags &= ~XFS_DIFLAG_ANY which keeps *only* > the bad flags. This leads to persistent, > unrepairable errors of the form: > > "Bad flags set in inode XXX" > > Fix this. > > While we are at it, fix a couple lines which > look like they used to be continuation lines, > but are no longer. > > Signed-off-by: Eric Sandeen > --- Reviewed-by: Brian Foster > repair/dinode.c | 6 +++--- > 1 files changed, 3 insertions(+), 3 deletions(-) > > diff --git a/repair/dinode.c b/repair/dinode.c > index 8891e84..38a6562 100644 > --- a/repair/dinode.c > +++ b/repair/dinode.c > @@ -2456,7 +2456,7 @@ _("bad (negative) size %" PRId64 " on inode %" PRIu64 "\n"), > _("Bad flags set in inode %" PRIu64 "\n"), > lino); > } > - flags &= ~XFS_DIFLAG_ANY; > + flags &= XFS_DIFLAG_ANY; > } > > if (flags & (XFS_DIFLAG_REALTIME | XFS_DIFLAG_RTINHERIT)) { > @@ -2513,11 +2513,11 @@ _("bad (negative) size %" PRId64 " on inode %" PRIu64 "\n"), > } > if (!verify_mode && flags != be16_to_cpu(dino->di_flags)) { > if (!no_modify) { > - do_warn(_(", fixing bad flags.\n")); > + do_warn(_("fixing bad flags.\n")); > dino->di_flags = cpu_to_be16(flags); > *dirty = 1; > } else > - do_warn(_(", would fix bad flags.\n")); > + do_warn(_("would fix bad flags.\n")); > } > } > > -- > 1.7.1 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Mon Sep 8 08:45:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 5C3DC7F53 for ; Mon, 8 Sep 2014 08:45:22 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 3C43A304048 for ; Mon, 8 Sep 2014 06:45:22 -0700 (PDT) X-ASG-Debug-ID: 1410183920-04cbb05486ae6a50001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id be85qj5KNO6gcPNf (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 08 Sep 2014 06:45:21 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s88DjK2r001966 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Mon, 8 Sep 2014 09:45:20 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s88DjKDQ003079; Mon, 8 Sep 2014 09:45:20 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 3FF0D1256F8; Mon, 8 Sep 2014 09:45:19 -0400 (EDT) Date: Mon, 8 Sep 2014 09:45:19 -0400 From: Brian Foster To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/5] xfs_repair: preserve error state in process_shortform_attr Message-ID: <20140908134518.GB52419@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 2/5] xfs_repair: preserve error state in process_shortform_attr References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> <1410108065-18156-3-git-send-email-sandeen@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1410108065-18156-3-git-send-email-sandeen@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410183921 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sun, Sep 07, 2014 at 11:41:02AM -0500, Eric Sandeen wrote: > process_shortform_attr uses the "junkit" error to > track whether an error was found, but by assigning > it directly to the result of valuecheck, previous > errors are ignored, leading to unrepairable errors > of the form i.e. > > "entry has INCOMPLETE flag on in shortform attribute" > or > "entry contains illegal character in shortform attribute name" > > Signed-off-by: Eric Sandeen > --- Reviewed-by: Brian Foster > repair/attr_repair.c | 3 ++- > 1 files changed, 2 insertions(+), 1 deletions(-) > > diff --git a/repair/attr_repair.c b/repair/attr_repair.c > index a27a3ec..d60b664 100644 > --- a/repair/attr_repair.c > +++ b/repair/attr_repair.c > @@ -914,7 +914,8 @@ process_shortform_attr( > > /* Only check values for root security attributes */ > if (currententry->flags & XFS_ATTR_ROOT) > - junkit = valuecheck(mp, (char *)¤tentry->nameval[0], > + junkit |= valuecheck(mp, > + (char *)¤tentry->nameval[0], > NULL, currententry->namelen, > currententry->valuelen); > > -- > 1.7.1 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Mon Sep 8 08:45:28 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 6FE847F57 for ; Mon, 8 Sep 2014 08:45:28 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 5EB44304039 for ; Mon, 8 Sep 2014 06:45:28 -0700 (PDT) X-ASG-Debug-ID: 1410183926-04cb6c54fe85b790001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Hsi9BQaukiW9Hf9P (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 08 Sep 2014 06:45:27 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s88DjQJR012487 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Mon, 8 Sep 2014 09:45:26 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s88DjQNM005117; Mon, 8 Sep 2014 09:45:26 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 6D6161256F8; Mon, 8 Sep 2014 09:45:25 -0400 (EDT) Date: Mon, 8 Sep 2014 09:45:25 -0400 From: Brian Foster To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH 3/5] xfs_repair: fix dir refcount when '.' missing and dir is rebuilt Message-ID: <20140908134524.GC52419@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 3/5] xfs_repair: fix dir refcount when '.' missing and dir is rebuilt References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> <1410108065-18156-4-git-send-email-sandeen@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1410108065-18156-4-git-send-email-sandeen@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410183927 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sun, Sep 07, 2014 at 11:41:03AM -0500, Eric Sandeen wrote: > In phase 6's longform_dir2_entry_check, if we never > find a '.' entry we never add a reference to that entry; > if we subsequently rebuild it, '.' gets added, but > no ref to it is ever made. This leads to Phase 7 doing > i.e.: > > Phase 7 - verify and correct link counts... > resetting inode 5184 nlinks from 2 to 1 > > and the next run will do: > > Phase 7 - verify and correct link counts... > resetting inode 5184 nlinks from 1 to 2 > > So if '.' was never found, but the directory got > rebuilt, manually add the ref for it. > > Signed-off-by: Eric Sandeen > --- > repair/phase6.c | 6 ++++++ > 1 files changed, 6 insertions(+), 0 deletions(-) > > diff --git a/repair/phase6.c b/repair/phase6.c > index f13069f..cc36a9c 100644 > --- a/repair/phase6.c > +++ b/repair/phase6.c > @@ -2288,6 +2288,12 @@ out_fix: > if (bplist[i]) > libxfs_putbuf(bplist[i]); > longform_dir2_rebuild(mp, ino, ip, irec, ino_offset, hashtab); > + /* > + * If we didn't find a dot, we never added a ref for it; > + * it's there now after the rebuild, so mark it as reached. > + */ > + if (*need_dot) > + add_inode_ref(irec, ino_offset); So if I follow this correctly, we iterate through the dir, add each name to the hashtable and handle the inode reference count in the first longform_dir2_entry_check() loop. If something is wrong, we call longform_dir2_rebuild() to rebuild the dir from the hashtable of names/inodes. We may or may not have added a reference for dot at that point, and need_dot is set appropriately. This seems Ok, but where is the dot entry actually added? Hmm, I see that we handle dot in the longform_dir2_rebuild() loop by just skipping over it... Brian > *num_illegal = 0; > *need_dot = 0; > } else { > -- > 1.7.1 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From sandeen@sandeen.net Mon Sep 8 08:49:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id CAB9F7F4E for ; Mon, 8 Sep 2014 08:49:51 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id A8B708F8035 for ; Mon, 8 Sep 2014 06:49:51 -0700 (PDT) X-ASG-Debug-ID: 1410184190-04cb6c54ff85bb30001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id d0LwgDLSbsY0jGOC for ; Mon, 08 Sep 2014 06:49:50 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 02A3263D71ED; Mon, 8 Sep 2014 08:49:50 -0500 (CDT) Message-ID: <540DB3FE.6010309@sandeen.net> Date: Mon, 08 Sep 2014 08:49:50 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Dave Chinner , Eric Sandeen CC: xfs-oss Subject: Re: [PATCH] xfs: don't ASSERT on corrupt ftype References: <540D011B.2000807@redhat.com> <20140908130507.GN30012@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs: don't ASSERT on corrupt ftype In-Reply-To: <20140908130507.GN30012@dastard> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410184190 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9282 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/8/14 8:05 AM, Dave Chinner wrote: > On Sun, Sep 07, 2014 at 08:06:35PM -0500, Eric Sandeen wrote: >> xfs_dir3_data_get_ftype() and xfs_dir2_sf_check() get >> the file type off disk, but ASSERT if it's invalid: >> >> ASSERT(type < XFS_DIR3_FT_MAX); >> >> This might be cut & paste from the "put" functions, >> which should be checking that they've not been passed >> bad values, but we shouldn't ASSERT on bad values >> read from disk. > > No, they weren't cut-n-paste from the put functions. They were > actually designed for a metadata block where bad values would not be > written to disk, and corrupted disk blocks would be detected by CRC > validation failures. So on debug kernels it's quite appropriate to > assert fail on a "should never, ever happen" condition. hohum, ok. > Then the v4 ftype feature bit was rammed in but none of the code got > changed to reflect that the values in the ftype fields are not CRC > protected on v4 filesystems.... > >> diff --git a/fs/xfs/libxfs/xfs_dir2_sf.c b/fs/xfs/libxfs/xfs_dir2_sf.c >> index 5079e05..ea89250 100644 >> --- a/fs/xfs/libxfs/xfs_dir2_sf.c >> +++ b/fs/xfs/libxfs/xfs_dir2_sf.c >> @@ -635,7 +635,6 @@ xfs_dir2_sf_check( >> offset = >> xfs_dir2_sf_get_offset(sfep) + >> dp->d_ops->data_entsize(sfep->namelen); >> - ASSERT(dp->d_ops->sf_get_ftype(sfep) < XFS_DIR3_FT_MAX); >> } >> ASSERT(i8count == sfp->i8count); >> ASSERT((char *)sfep - (char *)sfp == dp->i_d.di_size); > > That's a debug only function validating that the shortform directory > is internally consistent. And as the comment says: > > /* > * Check consistency of shortform directory, assert if bad. > */ > > So that assert should remain because it's checking the in-memory > state immediately before, during and after modifications are made to > the directory, not when it has just been read of disk.... > > Cheers, > > Dave. > From sandeen@sandeen.net Mon Sep 8 09:02:31 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 02AA57F4E for ; Mon, 8 Sep 2014 09:02:31 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id E51068F8035 for ; Mon, 8 Sep 2014 07:02:27 -0700 (PDT) X-ASG-Debug-ID: 1410184946-04cbb05485ae7840001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id OamULleMqSepizuJ for ; Mon, 08 Sep 2014 07:02:26 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 5231063D71ED; Mon, 8 Sep 2014 09:02:26 -0500 (CDT) Message-ID: <540DB6F3.7090407@sandeen.net> Date: Mon, 08 Sep 2014 09:02:27 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Dave Chinner , Eric Sandeen CC: xfs-oss Subject: Re: [PATCH] xfs: don't ASSERT on corrupt ftype References: <540D011B.2000807@redhat.com> <20140908130507.GN30012@dastard> <540DB3FE.6010309@sandeen.net> X-ASG-Orig-Subj: Re: [PATCH] xfs: don't ASSERT on corrupt ftype In-Reply-To: <540DB3FE.6010309@sandeen.net> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410184946 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9282 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/8/14 8:49 AM, Eric Sandeen wrote: > On 9/8/14 8:05 AM, Dave Chinner wrote: >> On Sun, Sep 07, 2014 at 08:06:35PM -0500, Eric Sandeen wrote: >>> xfs_dir3_data_get_ftype() and xfs_dir2_sf_check() get >>> the file type off disk, but ASSERT if it's invalid: >>> >>> ASSERT(type < XFS_DIR3_FT_MAX); >>> >>> This might be cut & paste from the "put" functions, >>> which should be checking that they've not been passed >>> bad values, but we shouldn't ASSERT on bad values >>> read from disk. >> >> No, they weren't cut-n-paste from the put functions. They were >> actually designed for a metadata block where bad values would not be >> written to disk, and corrupted disk blocks would be detected by CRC >> validation failures. So on debug kernels it's quite appropriate to >> assert fail on a "should never, ever happen" condition. > > hohum, ok. So then presumably the reason there is no ASSERT in xfs_dir3_sfe_get_ftype (vs in xfs_dir3_data_get_ftype) is also purely intentional and part of the design, but I'm unable to divine that logic... can you help me out? I guess the only way forward is to create a 3rd set of ops, and have one for dir2, one for dir2-with-ftype, and one for dir3? Because in the op, there's no way to discern between the latter 2, and know if we're previously CRC-protected or not... -Eric From bfoster@redhat.com Mon Sep 8 09:25:33 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 133937F4E for ; Mon, 8 Sep 2014 09:25:33 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id F2C0C8F8035 for ; Mon, 8 Sep 2014 07:25:32 -0700 (PDT) X-ASG-Debug-ID: 1410186331-04cb6c54fd85db80001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id J0WEb8BHzTYUq6wN (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 08 Sep 2014 07:25:32 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s88EPVJd029818 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Mon, 8 Sep 2014 10:25:31 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s88EPUuD001886; Mon, 8 Sep 2014 10:25:30 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id C27B91256F8; Mon, 8 Sep 2014 10:25:29 -0400 (EDT) Date: Mon, 8 Sep 2014 10:25:29 -0400 From: Brian Foster To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH 3/5] xfs_repair: fix dir refcount when '.' missing and dir is rebuilt Message-ID: <20140908142529.GD52419@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 3/5] xfs_repair: fix dir refcount when '.' missing and dir is rebuilt References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> <1410108065-18156-4-git-send-email-sandeen@redhat.com> <20140908134524.GC52419@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140908134524.GC52419@bfoster.bfoster> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410186331 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Sep 08, 2014 at 09:45:25AM -0400, Brian Foster wrote: > On Sun, Sep 07, 2014 at 11:41:03AM -0500, Eric Sandeen wrote: > > In phase 6's longform_dir2_entry_check, if we never > > find a '.' entry we never add a reference to that entry; > > if we subsequently rebuild it, '.' gets added, but > > no ref to it is ever made. This leads to Phase 7 doing > > i.e.: > > > > Phase 7 - verify and correct link counts... > > resetting inode 5184 nlinks from 2 to 1 > > > > and the next run will do: > > > > Phase 7 - verify and correct link counts... > > resetting inode 5184 nlinks from 1 to 2 > > > > So if '.' was never found, but the directory got > > rebuilt, manually add the ref for it. > > > > Signed-off-by: Eric Sandeen > > --- > > repair/phase6.c | 6 ++++++ > > 1 files changed, 6 insertions(+), 0 deletions(-) > > > > diff --git a/repair/phase6.c b/repair/phase6.c > > index f13069f..cc36a9c 100644 > > --- a/repair/phase6.c > > +++ b/repair/phase6.c > > @@ -2288,6 +2288,12 @@ out_fix: > > if (bplist[i]) > > libxfs_putbuf(bplist[i]); > > longform_dir2_rebuild(mp, ino, ip, irec, ino_offset, hashtab); > > + /* > > + * If we didn't find a dot, we never added a ref for it; > > + * it's there now after the rebuild, so mark it as reached. > > + */ > > + if (*need_dot) > > + add_inode_ref(irec, ino_offset); > > So if I follow this correctly, we iterate through the dir, add each name > to the hashtable and handle the inode reference count in the first > longform_dir2_entry_check() loop. If something is wrong, we call > longform_dir2_rebuild() to rebuild the dir from the hashtable of > names/inodes. We may or may not have added a reference for dot at that > point, and need_dot is set appropriately. > > This seems Ok, but where is the dot entry actually added? Hmm, I see > that we handle dot in the longform_dir2_rebuild() loop by just skipping > over it... > It looks like this happens in process_dir_inode() after this whole check/rebuild sequence, directory format permitting. There's also an add_inode_ref() there. Perhaps the bug here is that we clear need_dot when we shouldn't..? Brian > Brian > > > > *num_illegal = 0; > > *need_dot = 0; > > } else { > > -- > > 1.7.1 > > > > _______________________________________________ > > xfs mailing list > > xfs@oss.sgi.com > > http://oss.sgi.com/mailman/listinfo/xfs > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From sandeen@sandeen.net Mon Sep 8 09:33:56 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 032B77F4E for ; Mon, 8 Sep 2014 09:33:56 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id D5AD88F8033 for ; Mon, 8 Sep 2014 07:33:55 -0700 (PDT) X-ASG-Debug-ID: 1410186834-04cb6c54fd85e170001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id A4RTVlCvzHSq4RiL for ; Mon, 08 Sep 2014 07:33:54 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 5C84163D71ED; Mon, 8 Sep 2014 09:33:54 -0500 (CDT) Message-ID: <540DBE53.7040600@sandeen.net> Date: Mon, 08 Sep 2014 09:33:55 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Brian Foster , Eric Sandeen CC: xfs@oss.sgi.com Subject: Re: [PATCH 3/5] xfs_repair: fix dir refcount when '.' missing and dir is rebuilt References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> <1410108065-18156-4-git-send-email-sandeen@redhat.com> <20140908134524.GC52419@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 3/5] xfs_repair: fix dir refcount when '.' missing and dir is rebuilt In-Reply-To: <20140908134524.GC52419@bfoster.bfoster> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410186834 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9283 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/8/14 8:45 AM, Brian Foster wrote: > On Sun, Sep 07, 2014 at 11:41:03AM -0500, Eric Sandeen wrote: >> In phase 6's longform_dir2_entry_check, if we never >> find a '.' entry we never add a reference to that entry; >> if we subsequently rebuild it, '.' gets added, but >> no ref to it is ever made. This leads to Phase 7 doing >> i.e.: >> >> Phase 7 - verify and correct link counts... >> resetting inode 5184 nlinks from 2 to 1 >> >> and the next run will do: >> >> Phase 7 - verify and correct link counts... >> resetting inode 5184 nlinks from 1 to 2 >> >> So if '.' was never found, but the directory got >> rebuilt, manually add the ref for it. >> >> Signed-off-by: Eric Sandeen >> --- >> repair/phase6.c | 6 ++++++ >> 1 files changed, 6 insertions(+), 0 deletions(-) >> >> diff --git a/repair/phase6.c b/repair/phase6.c >> index f13069f..cc36a9c 100644 >> --- a/repair/phase6.c >> +++ b/repair/phase6.c >> @@ -2288,6 +2288,12 @@ out_fix: >> if (bplist[i]) >> libxfs_putbuf(bplist[i]); >> longform_dir2_rebuild(mp, ino, ip, irec, ino_offset, hashtab); >> + /* >> + * If we didn't find a dot, we never added a ref for it; >> + * it's there now after the rebuild, so mark it as reached. >> + */ >> + if (*need_dot) >> + add_inode_ref(irec, ino_offset); > > So if I follow this correctly, we iterate through the dir, add each name > to the hashtable and handle the inode reference count in the first > longform_dir2_entry_check() loop. If something is wrong, we call > longform_dir2_rebuild() to rebuild the dir from the hashtable of > names/inodes. We may or may not have added a reference for dot at that > point, and need_dot is set appropriately. > > This seems Ok, but where is the dot entry actually added? Hmm, I see > that we handle dot in the longform_dir2_rebuild() loop by just skipping > over it... longform_dir2_rebuild calls this before the loop: /* * Initialize a directory with its "." and ".." entries. */ int xfs_dir_init() But it doesn't actually create .; this creates a shortform dir, and shortform dirs have no '.' - I guess the comment could use an update. In the loop we call xfs_dir_createname() for everything in the hash, eventually things don't fit in shortform and we do xfs_dir2_sf_to_block, which creates the dot: /* * Create entry for . */ dep = xfs_dir3_data_dot_entry_p(mp, hdr); dep->inumber = cpu_to_be64(dp->i_ino); dep->namelen = 1; dep->name[0] = '.'; -Eric From sandeen@sandeen.net Mon Sep 8 09:44:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 18A697F4E for ; Mon, 8 Sep 2014 09:44:11 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 0581C8F8033 for ; Mon, 8 Sep 2014 07:44:10 -0700 (PDT) X-ASG-Debug-ID: 1410187449-04cbb05487ae9b60001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id XHJqPa9EayFaU5y3 for ; Mon, 08 Sep 2014 07:44:09 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 652C963D71ED; Mon, 8 Sep 2014 09:44:09 -0500 (CDT) Message-ID: <540DC0BA.1010802@sandeen.net> Date: Mon, 08 Sep 2014 09:44:10 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Brian Foster , Eric Sandeen CC: xfs@oss.sgi.com Subject: Re: [PATCH 3/5] xfs_repair: fix dir refcount when '.' missing and dir is rebuilt References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> <1410108065-18156-4-git-send-email-sandeen@redhat.com> <20140908134524.GC52419@bfoster.bfoster> <20140908142529.GD52419@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 3/5] xfs_repair: fix dir refcount when '.' missing and dir is rebuilt In-Reply-To: <20140908142529.GD52419@bfoster.bfoster> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410187449 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9283 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/8/14 9:25 AM, Brian Foster wrote: > On Mon, Sep 08, 2014 at 09:45:25AM -0400, Brian Foster wrote: >> On Sun, Sep 07, 2014 at 11:41:03AM -0500, Eric Sandeen wrote: >>> In phase 6's longform_dir2_entry_check, if we never >>> find a '.' entry we never add a reference to that entry; >>> if we subsequently rebuild it, '.' gets added, but >>> no ref to it is ever made. This leads to Phase 7 doing >>> i.e.: >>> >>> Phase 7 - verify and correct link counts... >>> resetting inode 5184 nlinks from 2 to 1 >>> >>> and the next run will do: >>> >>> Phase 7 - verify and correct link counts... >>> resetting inode 5184 nlinks from 1 to 2 >>> >>> So if '.' was never found, but the directory got >>> rebuilt, manually add the ref for it. >>> >>> Signed-off-by: Eric Sandeen >>> --- >>> repair/phase6.c | 6 ++++++ >>> 1 files changed, 6 insertions(+), 0 deletions(-) >>> >>> diff --git a/repair/phase6.c b/repair/phase6.c >>> index f13069f..cc36a9c 100644 >>> --- a/repair/phase6.c >>> +++ b/repair/phase6.c >>> @@ -2288,6 +2288,12 @@ out_fix: >>> if (bplist[i]) >>> libxfs_putbuf(bplist[i]); >>> longform_dir2_rebuild(mp, ino, ip, irec, ino_offset, hashtab); >>> + /* >>> + * If we didn't find a dot, we never added a ref for it; >>> + * it's there now after the rebuild, so mark it as reached. >>> + */ >>> + if (*need_dot) >>> + add_inode_ref(irec, ino_offset); >> >> So if I follow this correctly, we iterate through the dir, add each name >> to the hashtable and handle the inode reference count in the first >> longform_dir2_entry_check() loop. If something is wrong, we call >> longform_dir2_rebuild() to rebuild the dir from the hashtable of >> names/inodes. We may or may not have added a reference for dot at that >> point, and need_dot is set appropriately. >> >> This seems Ok, but where is the dot entry actually added? Hmm, I see >> that we handle dot in the longform_dir2_rebuild() loop by just skipping >> over it... >> > > It looks like this happens in process_dir_inode() after this whole > check/rebuild sequence, directory format permitting. There's also an > add_inode_ref() there. Perhaps the bug here is that we clear need_dot > when we shouldn't..? If we do that, the first run says: bad hash table for directory inode 5184 (no data entry): rebuilding rebuilding directory inode 5184 creating missing "." entry in dir ino 5184 and then the 2nd run says: multiple . entries in directory inode 5184: clearing entry so, no. ;) The issue is that add_inode_ref() is keeping track (in repair) of reached paths to the inode, in counted_nlinks. If we didn't find '.' originally, we didn't add that ref. When we do: longform_dir2_rebuild xfs_dir_init() // creates shortform xfs_dir_createname xfs_dir2_sf_to_block when it's big enough add '.' entry and then we've added the '.' but haven't added the reference repair needs internally. -Eric From stan@hardwarefreak.com Mon Sep 8 10:13:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B95A97F4E for ; Mon, 8 Sep 2014 10:13:22 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 55E96AC001 for ; Mon, 8 Sep 2014 08:13:19 -0700 (PDT) X-ASG-Debug-ID: 1410189194-04bdf0109a806ac0001-NocioJ Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id gafaOsOgu5HDzTjH for ; Mon, 08 Sep 2014 08:13:14 -0700 (PDT) X-Barracuda-Envelope-From: stan@hardwarefreak.com X-Barracuda-Apparent-Source-IP: 65.41.216.221 X-Barracuda-User-Whitelist: xfs@oss.sgi.com Received: from [134.64.128.162] (unknown [192.65.45.20]) by greer.hardwarefreak.com (Postfix) with ESMTPA id D18576C0F6; Mon, 8 Sep 2014 10:13:13 -0500 (CDT) Message-ID: <540DC78C.4010607@hardwarefreak.com> Date: Mon, 08 Sep 2014 10:13:16 -0500 From: stan hoeppner User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Icedove/24.7.0 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com Subject: Re: storage, libaio, or XFS problem? 3.4.26 References: <20140828230817.GU20518@dastard> <2d2ce7bb38c00a7d35f4a324f6a36cbb@localhost> <20140829235538.GF20518@dastard> <20140831235749.GH20518@dastard> <5403E9B9.7040608@hardwarefreak.com> <20140901234529.GI20518@dastard> <5405FB19.2020208@hardwarefreak.com> <20140902221915.GK20518@dastard> <540BEBB7.7020306@hardwarefreak.com> <20140907233910.GA30012@dastard> X-ASG-Orig-Subj: Re: storage, libaio, or XFS problem? 3.4.26 In-Reply-To: <20140907233910.GA30012@dastard> 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: 1410189194 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 09/07/2014 06:39 PM, Dave Chinner wrote: > On Sun, Sep 07, 2014 at 12:23:03AM -0500, stan hoeppner wrote: >> I have some more information regarding the AIO issue. I fired up the >> test harness and it ran for 30 hours at 706 MB/s avg write rate, 303 >> MB/s per LUN, nearly flawlessly, less than 0.01% buffer loss, and avg IO >> times were less than 0.5 seconds. Then the app crashed and I found the >> following in dmesg. I had to "hard reset" the box due to the shrapnel. >> There are no IO errors of any kind leading up to the forced shutdown. >> I assume the inode update and streamRT-sa hung task traces are a result >> of the forced shutdown, not a cause of it. In lieu of an xfs_repair >> with a version newer than I'm able to install, any ideas what caused the >> forced shutdown after 30 hours, given there are no errors preceding it? >> >> >> Sep 6 06:33:33 Anguish-ssu-1 kernel: [288087.334863] XFS (dm-5): >> xfs_do_force_shutdown(0x8) called from line 3732 of file >> fs/xfs/xfs_bmap.c. Return address = 0xffffffffa02009a6 >> Sep 6 06:33:42 Anguish-ssu-1 kernel: [288096.220920] XFS (dm-5): failed >> to update timestamps for inode 0x2ffc9caae > > Hi Stan, can you need to turn off line wrapping for stuff you paste > in? It's all but unreadable when it line wraps like this? Sorry. I switched my daily desktop from Windows/Tbird to Wheezy/Icedove and I haven't tweaked it out much yet. I set hard wrap at 72 and that's the problem. I'll set flowed format and see if that helps. > Next, you need to turn /proc/sys/fs/xfs/error_level up to 11 so that > it dumps a stack trace on corruption events. I don't have a (I can't > remember what kernel version you are running) tree in front of me to > convert that line number to something meaningful, so it's not a > great help... error_level is now 11 on both systems and will survive reboots. It's kernel 3.4.26. > Was there anything in the logs before the shutdown? i.e. can you > paste the dmesg output from the start of the test (i.e. the mount of > the fs) to the end? They have this setup in a quasi production/test manner, which is frustrating. The two test rigs PXE/tftp boot and mount rootfs on NFS. Both systems remote log kern.log into to a single file on the boot server, so I grep for hostname. dmesg isn't logged remotely, and is lost after a reboot. So I don't have the mount entries for some reason. It seems kern.log doesn't get populated with all the stuff that goes into dmesg. I'll be sure to grab all of dmesg next time before rebooting. However, I don't recall any errors of any kind prior to the shutdown, which in itself is strange. > As it is, all the traces looke like this: > >> [] schedule+0x64/0x66 >> [] rwsem_down_failed_common+0xdb/0x10d >> [] rwsem_down_write_failed+0x13/0x15 >> [] call_rwsem_down_write_failed+0x13/0x20 >> [] ? down_write+0x25/0x27 >> [] xfs_ilock+0x4f/0xb4 [xfs] >> [] xfs_rw_ilock+0x2c/0x33 [xfs] >> [] ? _raw_spin_unlock_irq+0x27/0x32 >> [] xfs_file_aio_write_checks+0x41/0xfe [xfs] >> [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] >> [] xfs_file_aio_write+0x152/0x1b5 [xfs] >> [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] >> [] aio_rw_vect_retry+0x85/0x18a >> [] ? aio_fsync+0x29/0x29 >> [] aio_run_iocb+0x7b/0x149 >> [] io_submit_one+0x199/0x1f3 >> [] do_io_submit+0xfa/0x271 >> [] sys_io_submit+0x10/0x12 >> [] system_call_fastpath+0x16/0x1b > > Which implies that the shutdown didn't unlock the inode correctly. > But without knowing what the call stack at the time of the shutdown > was, I can't really tell... And error_level 11 should give us the call stack, correct? My current run without AIO should be completing in a few hours. I have one more non-AIO run to make after that. Takes about 6 hours after all files are populated. Then I'll start another AIO run and try to get you the info you need. May take 30 hours again, might take less than an hour. It's not consistent. Thanks, Stan From joe.landman@gmail.com Mon Sep 8 13:10:12 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 7DE277F4E for ; Mon, 8 Sep 2014 13:10:12 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 1AF59AC00A for ; Mon, 8 Sep 2014 11:10:09 -0700 (PDT) X-ASG-Debug-ID: 1410199807-04bdf010a1813f50001-NocioJ Received: from mail-ig0-f174.google.com (mail-ig0-f174.google.com [209.85.213.174]) by cuda.sgi.com with ESMTP id qHzopjaDQo4FA4RK (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 08 Sep 2014 11:10:07 -0700 (PDT) X-Barracuda-Envelope-From: joe.landman@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.213.174 X-Barracuda-IPDD: Level1 [gmail.com/209.85.213.174] Received: by mail-ig0-f174.google.com with SMTP id a13so3215331igq.7 for ; Mon, 08 Sep 2014 11:10:07 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.213.174] X-Barracuda-IPDD: Level1 [gmail.com/209.85.213.174] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject :content-type:content-transfer-encoding; bh=XWibc9LQJZRp4Hx6TVTHAVd9IUiy91NfxWgbA8XyKNw=; b=VnR8aCq69H4hISSy7AjQJotkG1uiX3IqUcOP1zC4EwGaz3uhGiylIT6rhR7HgR5esb mbhe++sYPUlz7+/o5EHo37lqJVbSXB27h8tSk7zUWGvVZ7gNT5SymZBy1cmAEtVx2Q/N aLTgNztqDp3ZyS9kae9Ntc4wFJsf3zxe1pZmVKDn6ITXuLtF68VKHXRqfbZOvfu40Lqn Axan5CDUdHGMHZcHYTTCskGGaVgA40YgiVQKfSfp3z//riQPyZXzxMymBsQ+ljIChyjY i8Q9h0AKRbkwgSxsFP/kJIjg6Gph9E+TSY8kWa3jLgIfO+Lu55+UvNs6t0Jb04WKvnBF msyQ== X-Received: by 10.42.199.11 with SMTP id eq11mr14539956icb.5.1410199807294; Mon, 08 Sep 2014 11:10:07 -0700 (PDT) Received: from [192.168.1.171] (50-197-102-113-static.hfc.comcastbusiness.net. [50.197.102.113]) by mx.google.com with ESMTPSA id x9sm11608103igl.10.2014.09.08.11.10.06 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 08 Sep 2014 11:10:06 -0700 (PDT) Message-ID: <540DF0FD.205@gmail.com> Date: Mon, 08 Sep 2014 14:10:05 -0400 From: Joe Landman User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: converting from external log to internal log ... is this possible? Content-Type: text/plain; charset=utf-8; format=flowed X-ASG-Orig-Subj: converting from external log to internal log ... is this possible? Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail-ig0-f174.google.com[209.85.213.174] X-Barracuda-Start-Time: 1410199807 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9287 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 Figured I'd ask, looked on the FAQ and didn't see anything there relevant to this. There is a hint of this in xfs_growfs, specifically the -i option, though it is noted that "[NOTE: This option is not implemented]". -- Joe Landman From sandeen@sandeen.net Mon Sep 8 13:41:57 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id DC8F97F4E for ; Mon, 8 Sep 2014 13:41:57 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id BCF7A304048 for ; Mon, 8 Sep 2014 11:41:54 -0700 (PDT) X-ASG-Debug-ID: 1410201712-04cb6c54fe86f410001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id fg157WLRfxr8qhM3 for ; Mon, 08 Sep 2014 11:41:52 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 8DF56637142E; Mon, 8 Sep 2014 13:41:51 -0500 (CDT) Message-ID: <540DF86D.8080705@sandeen.net> Date: Mon, 08 Sep 2014 13:41:49 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Joe Landman , xfs@oss.sgi.com Subject: Re: converting from external log to internal log ... is this possible? References: <540DF0FD.205@gmail.com> X-ASG-Orig-Subj: Re: converting from external log to internal log ... is this possible? In-Reply-To: <540DF0FD.205@gmail.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410201712 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9288 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/8/14 1:10 PM, Joe Landman wrote: > Figured I'd ask, looked on the FAQ and didn't see anything there > relevant to this. There is a hint of this in xfs_growfs, > specifically the -i option, though it is noted that "[NOTE: This > option is not implemented]". Yep, it's never been implemented. You could do it manually with some very careful xfs_db surgery, if you had enough contiguous freespace available, but it's not at all supported. Basically, no, you can't do it without getting very far under the hood and directly editing the disk. -Eric From david@fromorbit.com Mon Sep 8 17:01:06 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 477EC7F50 for ; Mon, 8 Sep 2014 17:01:06 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id D8801AC003 for ; Mon, 8 Sep 2014 15:01:02 -0700 (PDT) X-ASG-Debug-ID: 1410213659-04cbb05485b24470001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id lzLYB3cmJWeGZHWN for ; Mon, 08 Sep 2014 15:00:59 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail04.adl6.internode.on.net with ESMTP; 09 Sep 2014 07:30:39 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XR6zE-0002dE-RD; Tue, 09 Sep 2014 08:00:36 +1000 Date: Tue, 9 Sep 2014 08:00:36 +1000 From: Dave Chinner To: Eric Sandeen Cc: Eric Sandeen , xfs-oss Subject: Re: [PATCH] xfs: don't ASSERT on corrupt ftype Message-ID: <20140908220036.GO30012@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs: don't ASSERT on corrupt ftype References: <540D011B.2000807@redhat.com> <20140908130507.GN30012@dastard> <540DB3FE.6010309@sandeen.net> <540DB6F3.7090407@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <540DB6F3.7090407@sandeen.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1410213659 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9292 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Sep 08, 2014 at 09:02:27AM -0500, Eric Sandeen wrote: > On 9/8/14 8:49 AM, Eric Sandeen wrote: > >On 9/8/14 8:05 AM, Dave Chinner wrote: > >>On Sun, Sep 07, 2014 at 08:06:35PM -0500, Eric Sandeen wrote: > >>>xfs_dir3_data_get_ftype() and xfs_dir2_sf_check() get > >>>the file type off disk, but ASSERT if it's invalid: > >>> > >>> ASSERT(type < XFS_DIR3_FT_MAX); > >>> > >>>This might be cut & paste from the "put" functions, > >>>which should be checking that they've not been passed > >>>bad values, but we shouldn't ASSERT on bad values > >>>read from disk. > >> > >>No, they weren't cut-n-paste from the put functions. They were > >>actually designed for a metadata block where bad values would not be > >>written to disk, and corrupted disk blocks would be detected by CRC > >>validation failures. So on debug kernels it's quite appropriate to > >>assert fail on a "should never, ever happen" condition. > > > >hohum, ok. > > So then presumably the reason there is no ASSERT in xfs_dir3_sfe_get_ftype > (vs in xfs_dir3_data_get_ftype) is also purely intentional and > part of the design, but I'm unable to divine that logic... can you > help me out? Because that ASSERT check was put in xfs_dir2_sf_check(). Yeah, I know, not consistent, but the shortform code is quite different to the block/leaf/node code.... > I guess the only way forward is to create a 3rd set of ops, and have > one for dir2, one for dir2-with-ftype, and one for dir3? Because > in the op, there's no way to discern between the latter 2, and > know if we're previously CRC-protected or not... No, just kill the asset in xfs_dir3_data_get_ftype(). Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Sep 8 17:07:46 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 42F507F52 for ; Mon, 8 Sep 2014 17:07:46 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id D4E35AC001 for ; Mon, 8 Sep 2014 15:07:45 -0700 (PDT) X-ASG-Debug-ID: 1410214059-04bdf010a182c690001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id NGZC0cxpgMMkTiWQ for ; Mon, 08 Sep 2014 15:07:40 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgY6AJwnDlR5LKYhPGdsb2JhbABZgw2BKoIshQepMAEBAQEBAQaab4VpAQMBAQGBGBcFAQEBATg3hAQBBTocIxAIAxgJJQ8FJQMHGhOIQb1NARcYhWSJUQeETAWccZkgKy+CTwEBAQ Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail04.adl6.internode.on.net with ESMTP; 09 Sep 2014 07:37:39 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XR762-0002e6-Rv; Tue, 09 Sep 2014 08:07:38 +1000 Date: Tue, 9 Sep 2014 08:07:38 +1000 From: Dave Chinner To: Eric Sandeen Cc: Joe Landman , xfs@oss.sgi.com Subject: Re: converting from external log to internal log ... is this possible? Message-ID: <20140908220738.GP30012@dastard> X-ASG-Orig-Subj: Re: converting from external log to internal log ... is this possible? References: <540DF0FD.205@gmail.com> <540DF86D.8080705@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <540DF86D.8080705@sandeen.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1410214059 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9292 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Sep 08, 2014 at 01:41:49PM -0500, Eric Sandeen wrote: > On 9/8/14 1:10 PM, Joe Landman wrote: > >Figured I'd ask, looked on the FAQ and didn't see anything there > >relevant to this. There is a hint of this in xfs_growfs, > >specifically the -i option, though it is noted that "[NOTE: This > >option is not implemented]". > > Yep, it's never been implemented. You could do it manually with > some very careful xfs_db surgery, if you had enough contiguous > freespace available, but it's not at all supported. > > Basically, no, you can't do it without getting very far under > the hood and directly editing the disk. There's nothing amazingly difficult about implementing external-to-internal journal. First allocate the contiguous extent for the new log, then zero it, then freeze the filesystem to bring the external log down to a clean state, atomically modify the superblock on disk to point at the new log, then re-initialise all the log state to point at the new log, update the head and tail to new cycles at the start of the new log, and unfreeze.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From sandeen@sandeen.net Mon Sep 8 17:18:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E259E7F54 for ; Mon, 8 Sep 2014 17:18:11 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id CF8C58F8040 for ; Mon, 8 Sep 2014 15:18:08 -0700 (PDT) X-ASG-Debug-ID: 1410214686-04cbb05486b26b30001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id 5xFxKOpzoEqd4WNR for ; Mon, 08 Sep 2014 15:18:06 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 6EFF4637142E; Mon, 8 Sep 2014 17:18:06 -0500 (CDT) Message-ID: <540E2B1F.9070009@sandeen.net> Date: Mon, 08 Sep 2014 17:18:07 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Eric Sandeen , xfs-oss Subject: [PATCH V2] xfs: don't ASSERT on corrupt ftype References: <540D011B.2000807@redhat.com> X-ASG-Orig-Subj: [PATCH V2] xfs: don't ASSERT on corrupt ftype In-Reply-To: <540D011B.2000807@redhat.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410214686 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9292 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- xfs_dir3_data_get_ftype() gets the file type off disk, but ASSERTs if it's invalid: ASSERT(type < XFS_DIR3_FT_MAX); We shouldn't ASSERT on bad values read from disk. V3 dirs are CRC-protected, but V2 dirs + ftype are not. Signed-off-by: Eric Sandeen --- diff --git a/fs/xfs/libxfs/xfs_da_format.c b/fs/xfs/libxfs/xfs_da_format.c index c9aee52..7e42fdf 100644 --- a/fs/xfs/libxfs/xfs_da_format.c +++ b/fs/xfs/libxfs/xfs_da_format.c @@ -270,7 +270,6 @@ xfs_dir3_data_get_ftype( { __uint8_t ftype = dep->name[dep->namelen]; - ASSERT(ftype < XFS_DIR3_FT_MAX); if (ftype >= XFS_DIR3_FT_MAX) return XFS_DIR3_FT_UNKNOWN; return ftype; From dave@fromorbit.com Mon Sep 8 20:43:27 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id AC63F7F4E for ; Mon, 8 Sep 2014 20:43:27 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 2CCF3AC001 for ; Mon, 8 Sep 2014 18:43:23 -0700 (PDT) X-ASG-Debug-ID: 1410226997-04cb6c54fe88f410001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id V61rOizSW5KIJVkj for ; Mon, 08 Sep 2014 18:43:18 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AlcXAD9aDlR5LKYhPGdsb2JhbABZgw2BKoczqTYBAQEBAQEGoXIXBQEBAQE4N4QxLzsYagMHLYhBlzmlOoV8jiQFqRmMeCsvgk8BAQE Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail04.adl6.internode.on.net with ESMTP; 09 Sep 2014 11:13:16 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XRASh-0003E4-21 for xfs@oss.sgi.com; Tue, 09 Sep 2014 11:43:15 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XRASh-000464-0g for xfs@oss.sgi.com; Tue, 09 Sep 2014 11:43:15 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH] xfs: xlog_cil_force_lsn doesn't always wait correctly Date: Tue, 9 Sep 2014 11:43:15 +1000 X-ASG-Orig-Subj: [PATCH] xfs: xlog_cil_force_lsn doesn't always wait correctly Message-Id: <1410226995-15714-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1410226997 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9297 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner When running a tight mount/unmount loop on an older kernel, RedHat QE found that unmount would occasionally hang in xfs_buf_unpin_wait() on the superblock buffer. Tracing and other debug work by Eric Sandeen indicated that it was hanging on the writing of the superblock during unmount immediately after logging the superblock counters in a synchronous transaction. Further debug indicated that the synchronous transaction was not waiting for completion correctly, and we narrowed it down to xlog_cil_force_lsn() returning NULLCOMMITLSN and hence not pushing the transaction in the iclog buffer to disk correctly. While this unmount superblock write code is now very different in mainline kernels, the xlog_cil_force_lsn() code is identical, and it was bisected to the backport of commit f876e44 ("xfs: always do log forces via the workqueue"). This commit made the CIL push asynchronous for log forces and hence exposed a race condition that couldn't occur on a synchronous push. Essentially, the xlog_cil_force_lsn() relied implicitly on the fact that the sequence push would be complete by the time xlog_cil_push_now() returned, resulting in the context being pushed being in the committing list. When it was made asynchronous, it was recognised that there was a race condition in detecting whether an asynchronous push has started or not and code was added to handle it. Unfortunately, the fix was not quite right and left a race condition where it it would detect an empty CIL while a push was in progress before the context had been added to the committing list. This was incorrectly seen as a "nothing to do" condition and so would tell xfs_log_force_lsn() that there is nothing to wait for, and hence it would push the iclogbufs in memory. The fix is simple, but explaining the logic and the race condition is a lot more complex. The fix is to add the context to the committing list before we start emptying the CIL. This allows us to detect the difference between an empty "do nothing" push and a push that has not started by adding a discrete "emptying the CIL" state to avoid the transient, incorrect "empty" condition that the (unchanged) waiting code was seeing. Signed-off-by: Dave Chinner Tested-by: Eric Sandeen --- fs/xfs/xfs_log_cil.c | 47 ++++++++++++++++++++++++++++++++++++++--------- 1 file changed, 38 insertions(+), 9 deletions(-) diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c index f6b79e5..f506c45 100644 --- a/fs/xfs/xfs_log_cil.c +++ b/fs/xfs/xfs_log_cil.c @@ -463,12 +463,40 @@ xlog_cil_push( spin_unlock(&cil->xc_push_lock); goto out_skip; } - spin_unlock(&cil->xc_push_lock); /* check for a previously pushed seqeunce */ - if (push_seq < cil->xc_ctx->sequence) + if (push_seq < cil->xc_ctx->sequence) { + spin_unlock(&cil->xc_push_lock); goto out_skip; + } + + /* + * We are now going to push this context, so add it to the committing + * list before we do anything else. This ensures that anyone waiting on + * this push can easily detect the difference between a "push in + * progress" and "CIL is empty, nothing to do". + * + * IOWs, a wait loop can now check for: + * the current sequence not being found on the committing list; + * an empty CIL; and + * an unchanged sequence number + * to detect a push that had nothing to do and therefore does not need + * waiting on. If the CIL is not empty, we get put on the committing + * list before emptying the CIL and bumping the sequence number. Hence + * an empty CIL and an unchanged sequence number means we jumped out + * above after doing nothing. + * + * Hence the waiter will either find the commit sequence on the + * committing list or the sequence number will be unchanged and the CIL + * still dirty. In that latter case, the push has not yet started, and + * so the waiter will have to continue trying to check the CIL + * committing list until it is found. In extreme cases of delay, the + * sequence may fully commit between the attempts the wait makes to wait + * on the commit sequence. + */ + list_add(&ctx->committing, &cil->xc_committing); + spin_unlock(&cil->xc_push_lock); /* * pull all the log vectors off the items in the CIL, and @@ -532,7 +560,6 @@ xlog_cil_push( */ spin_lock(&cil->xc_push_lock); cil->xc_current_sequence = new_ctx->sequence; - list_add(&ctx->committing, &cil->xc_committing); spin_unlock(&cil->xc_push_lock); up_write(&cil->xc_ctx_lock); @@ -855,13 +882,15 @@ restart: * Hence by the time we have got here it our sequence may not have been * pushed yet. This is true if the current sequence still matches the * push sequence after the above wait loop and the CIL still contains - * dirty objects. + * dirty objects. This is guaranteed by the push code first adding the + * context to the committing list before emptying the CIL. * - * When the push occurs, it will empty the CIL and atomically increment - * the currect sequence past the push sequence and move it into the - * committing list. Of course, if the CIL is clean at the time of the - * push, it won't have pushed the CIL at all, so in that case we should - * try the push for this sequence again from the start just in case. + * Hence if we don't find the context in the committing list and the + * current sequence number is unchanged then the CIL contents are + * significant. If the CIL is empty, if means there was nothing to push + * and that means there is nothing to wait for. If the CIL is not empty, + * it means we haven't yet started the push, because if it had started + * we would have found the context on the committing list. */ if (sequence == cil->xc_current_sequence && !list_empty(&cil->xc_cil)) { -- 2.0.0 From david@fromorbit.com Mon Sep 8 20:46:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 979E57F4E for ; Mon, 8 Sep 2014 20:46:21 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 82FD48F8040 for ; Mon, 8 Sep 2014 18:46:21 -0700 (PDT) X-ASG-Debug-ID: 1410227179-04cb6c54ff88f590001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id 7R1zCsNFeubEoMeN for ; Mon, 08 Sep 2014 18:46:19 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Agg6AG9bDlR5LKYhPGdsb2JhbABZgw2BKoIshQepNgEBAQEBAQaab4VpAQMBAQGBExcFAQEBATg3hAQBBTocIxAIAw4KCSUPBSUDBxoTiEG8VAEXGIVkiVEHhEwFjyuNRpkgKy8BgQUjgSYBAQE Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail04.adl6.internode.on.net with ESMTP; 09 Sep 2014 11:16:18 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XRAVd-0003Ex-Nx; Tue, 09 Sep 2014 11:46:17 +1000 Date: Tue, 9 Sep 2014 11:46:17 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH] xfs: mark all internal workqueues as freezable Message-ID: <20140909014617.GT30012@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs: mark all internal workqueues as freezable References: <1408388523-3684-1-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408388523-3684-1-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1410227179 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9297 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Aug 18, 2014 at 03:02:03PM -0400, Brian Foster wrote: > Workqueues must be explicitly set as freezable to ensure they are frozen > in the assocated part of the hibernation/suspend sequence. Freezing of > workqueues and kernel threads is important to ensure that modifications > are not made on-disk after the hibernation image has been created. > Otherwise, the in-memory state can become inconsistent with what is on > disk and eventually lead to filesystem corruption. We have reports of > free space btree corruptions that occur immediately after restore from > hibernate that suggest the xfs-eofblocks workqueue could be causing > such problems if it races with hibernation. > > Mark all of the internal XFS workqueues as freezable to ensure nothing > changes on-disk once the freezer infrastructure freezes kernel threads > and creates the hibernation image. > > Signed-off-by: Brian Foster > Reported-by: Carlos E. R. Looks good. Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Sep 8 20:47:24 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 552E17F4E for ; Mon, 8 Sep 2014 20:47:24 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 255428F8040 for ; Mon, 8 Sep 2014 18:47:24 -0700 (PDT) X-ASG-Debug-ID: 1410227241-04bdf0109a838010001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id NUlgtBhOQi1QJLqW for ; Mon, 08 Sep 2014 18:47:22 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Agg6AG9bDlR5LKYhPGdsb2JhbABZgw2BKoIshQepNgEBAQEBAQaab4VpAQMBAQGBExcFAQEBATg3hAQBBScTHCMQCAMYCSUPBSUDBxoTiEG8VAEXGIVkiHlYB4RMBY8rjUaZICsvgQaBSQEBAQ Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail04.adl6.internode.on.net with ESMTP; 09 Sep 2014 11:17:21 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XRAWe-0003F8-ED; Tue, 09 Sep 2014 11:47:20 +1000 Date: Tue, 9 Sep 2014 11:47:20 +1000 From: Dave Chinner To: Eric Sandeen Cc: Eric Sandeen , xfs-oss Subject: Re: [PATCH V2] xfs: add a few more verifier tests Message-ID: <20140909014720.GU30012@dastard> X-ASG-Orig-Subj: Re: [PATCH V2] xfs: add a few more verifier tests References: <53F2C103.8030607@redhat.com> <53F3A726.8080305@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F3A726.8080305@sandeen.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1410227241 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9297 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Aug 19, 2014 at 02:36:06PM -0500, Eric Sandeen wrote: > These were exposed by fsfuzzer runs; without them we fail > in various exciting and sometimes convoluted ways when we > encounter disk corruption. > > Without the MAXLEVELS tests we tend to walk off the end of > an array in a loop like this: > > for (i = 0; i < cur->bc_nlevels; i++) { > if (cur->bc_bufs[i]) > > Without the dirblklog test we try to allocate more memory > than we could possibly hope for and loop forever: > > xfs_dabuf_map() > nfsb = mp->m_dir_geo->fsbcount; > irecs = kmem_zalloc(sizeof(irec) * nfsb, KM_SLEEP... > > As for the logbsize check, that's the convoluted one. > > If logbsize is specified at mount time, it's sanitized > in xfs_parseargs; in particular it makes sure that it's > not > XLOG_MAX_RECORD_BSIZE. > > If not specified at mount time, it comes from the superblock > via sb_logsunit; this is limited to 256k at mkfs time as well; > it's copied into m_logbsize in xfs_finish_flags(). > > However, if for some reason the on-disk value is corrupt and > too large, nothing catches it. It's a circuitous path, but > that size eventually finds its way to places that make the kernel > very unhappy, leading to oopses in xlog_pack_data() because we > use the size as an index into iclog->ic_data, but the array > is not necessarily that big. > > Anyway - bounds checking when we read from disk is a good thing! > > Signed-off-by: Eric Sandeen > -- Looks good. Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Sep 8 20:56:07 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 86A407F4E for ; Mon, 8 Sep 2014 20:56:07 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 21977AC001 for ; Mon, 8 Sep 2014 18:56:06 -0700 (PDT) X-ASG-Debug-ID: 1410227764-04cbb05485b3b0d0001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id u5pHYRkbYiKxhl0o for ; Mon, 08 Sep 2014 18:56:04 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtE5AMRdDlR5LKYhPGdsb2JhbABZgw1TV4IsrjIMAQEBAQEBBpkSgV2FaQEDAQEBgRQXBQEBAQE4N4QEAQU6HCMQCAMOCgklDwUlAwcaE4hBDrxFARcYhWSHQYIQB4RMBZVwhwGZICsvAYJOAQEB Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail04.adl6.internode.on.net with ESMTP; 09 Sep 2014 11:26:03 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XRAf3-0003GX-5m; Tue, 09 Sep 2014 11:56:01 +1000 Date: Tue, 9 Sep 2014 11:56:01 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH v2 0/2] xfs log recovery delay instrumentation Message-ID: <20140909015601.GV30012@dastard> X-ASG-Orig-Subj: Re: [PATCH v2 0/2] xfs log recovery delay instrumentation References: <1409666895-49799-1-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409666895-49799-1-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1410227764 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9297 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Sep 02, 2014 at 10:08:13AM -0400, Brian Foster wrote: > Here's v2 of the log recovery delay instrumentation set. v1 is available > here: > > http://oss.sgi.com/archives/xfs/2014-08/msg00276.html > > After a brief conversation with Dave, we thought it best to tie in this > functionality with DEBUG mode to express/ensure that these attributes > are for debugging/hacking purposes only. Everything else should be > equivalent to v1. > > Brian > > v2: > - Enable /sys/fs/xfs/debug for DEBUG mode kernels only. > v1: http://oss.sgi.com/archives/xfs/2014-08/msg00276.html > > Brian Foster (2): > xfs: add debug sysfs attribute set > xfs: export log_recovery_delay to delay mount time log recovery These look good. I'm sure that as we add more attributes there will be opportunity for factoring/streamlining this code more, but right now I don't think that is necessary. Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Sep 8 23:04:01 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id ABE0D7F4E for ; Mon, 8 Sep 2014 23:04:01 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 9967F8F8039 for ; Mon, 8 Sep 2014 21:03:58 -0700 (PDT) X-ASG-Debug-ID: 1410235436-04cb6c5500892dc0001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id qyaPEKoaldASaKxf for ; Mon, 08 Sep 2014 21:03:56 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Agg6AEt7DlR5LKYhPGdsb2JhbABZgw2BKoIshQepPQEBAQEBAQaab4VpAQMBAQGBEhcFAQEBATg3hAQBBTocIxAIAw4KCSUPBSUDBxoTiEG8LAEXGIVkiVEHgy+BHQWccZkgKy+CTwEBAQ Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail04.adl6.internode.on.net with ESMTP; 09 Sep 2014 13:33:55 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XRCem-0003ZH-RO; Tue, 09 Sep 2014 14:03:52 +1000 Date: Tue, 9 Sep 2014 14:03:52 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/4] xfs: track collapse via file offset rather than extent index Message-ID: <20140909040352.GC20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 1/4] xfs: track collapse via file offset rather than extent index References: <1410092760-3451-1-git-send-email-bfoster@redhat.com> <1410092760-3451-2-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1410092760-3451-2-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1410235436 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9299 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sun, Sep 07, 2014 at 08:25:57AM -0400, Brian Foster wrote: > The collapse range implementation uses a transaction per extent shift. > The progress of the overall operation is tracked via the current extent > index of the in-core extent list. This is racy because the ilock must be > dropped and reacquired for each transaction according to locking and log > reservation rules. Therefore, writeback to prior regions of the file is > possible and can change the extent count. This changes the extent to > which the current index refers and causes the collapse to fail mid > operation. To avoid this problem, the entire file is currently written > back before the collapse operation starts. > > To eliminate the need to flush the entire file, use the file offset > (fsb) to track the progress of the overall extent shift operation rather > than the extent index. Modify xfs_bmap_shift_extents() to > unconditionally convert the start_fsb parameter to an extent index and > return the file offset of the extent where the shift left off, if > further extents exist. The bulk of ths function can remain based on > extent index as ilock is held by the caller. xfs_collapse_file_space() > now uses the fsb output as the starting point for the subsequent shift. > > Signed-off-by: Brian Foster Looks good. There's a couple of small things I noticed, but they aren't worth redoing the patches again to fix. Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From david@fromorbit.com Tue Sep 9 00:08:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id AA9687F4E for ; Tue, 9 Sep 2014 00:08:13 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6CB5B8F8033 for ; Mon, 8 Sep 2014 22:08:10 -0700 (PDT) X-ASG-Debug-ID: 1410239287-04bdf01097841b10001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id v7LcmAOZqxlutVJU for ; Mon, 08 Sep 2014 22:08:07 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Al0/AIaKDlR5LKYhPGdsb2JhbABZgw2BKoIsrkoGmm+FaQICAQEBgRAXBQEBAQE4N4QEAQUnExwjEAgDDgoJJQ8FJQMHGhOIQbweARcYhWSJUQeDL4EdBYYaiRKNRowojHorL4JPAQEB Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail04.adl6.internode.on.net with ESMTP; 09 Sep 2014 14:38:01 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XRDeq-0003hF-3a; Tue, 09 Sep 2014 15:08:00 +1000 Date: Tue, 9 Sep 2014 15:08:00 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/4] xfs: refactor xfs_bmap_shift_extents() into multiple functions Message-ID: <20140909050800.GD20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 2/4] xfs: refactor xfs_bmap_shift_extents() into multiple functions References: <1410092760-3451-1-git-send-email-bfoster@redhat.com> <1410092760-3451-3-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1410092760-3451-3-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1410239287 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9300 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sun, Sep 07, 2014 at 08:25:58AM -0400, Brian Foster wrote: > The extent shift mechanism in xfs_bmap_shift_extents() is complicated > and handles several different, non-deterministic scenarios. These > include extent shifts, extent merges and potential btree updates in > either of the former scenarios. > > Refactor the code to be more linear and readable. The loop logic in > xfs_bmap_shift_extents() and some initial error checking is adjusted > slightly. The associated btree lookup and update/delete operations are > condensed into single blocks of code. This reduces the number of > btree-specific blocks and facilitates the separation of the merge > operation into a new xfs_bmap_shift_extents_merge() helper. The merge > check is also separated into an inline. > > This is a code refactor only. The behavior of extent shift and collapse > range is not modified. > > Signed-off-by: Brian Foster > --- > fs/xfs/libxfs/xfs_bmap.c | 243 ++++++++++++++++++++++++++++++++--------------- > 1 file changed, 168 insertions(+), 75 deletions(-) > > diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c > index 4b3f1b9..449a016 100644 > --- a/fs/xfs/libxfs/xfs_bmap.c > +++ b/fs/xfs/libxfs/xfs_bmap.c > @@ -5404,6 +5404,120 @@ error0: > } > > /* > + * Determine whether an extent shift can be accomplished by a merge with the > + * extent that precedes the target hole of the shift. > + */ > +static inline bool > +xfs_bmap_shift_extents_can_merge( No need for "inline" for static functions. The compiler will do that as an optimisation if appropriate. > + struct xfs_bmbt_irec *left, /* preceding extent */ > + struct xfs_bmbt_irec *got, /* current extent to shift */ > + xfs_fileoff_t shift) /* shift fsb */ > +{ > + xfs_fileoff_t startoff; > + > + startoff = got->br_startoff - shift; > + > + /* > + * The extent, once shifted, must be adjacent in-file and on-disk with > + * the preceding extent. > + */ > + if ((left->br_startoff + left->br_blockcount != startoff) || > + (left->br_startblock + left->br_blockcount != got->br_startblock) || > + (left->br_state != got->br_state) || > + (left->br_blockcount + got->br_blockcount > MAXEXTLEN)) > + return false; > + > + return true; > +} > + > +/* > + * An extent shift adjusts the file offset of an extent to fill a preceding hole > + * in the file. If an extent shift would result in the extent being fully > + * adjacent to the extent that currently precedes the hole, we can merge with > + * the preceding extent rather than do the shift. > + * > + * This function assumes the caller has verified a shift-by-merge is possible > + * with the provided extents via xfs_bmap_shift_extents_can_merge(). > + */ > +static int > +xfs_bmap_shift_extents_merge( > + struct xfs_inode *ip, > + int whichfork, > + xfs_fileoff_t shift, /* shift fsb */ > + int current_ext, /* idx of gotp */ > + struct xfs_bmbt_rec_host *gotp, /* extent to shift */ > + struct xfs_bmbt_rec_host *leftp, /* preceding extent */ > + struct xfs_btree_cur *cur, > + int *logflags) /* output */ > +{ > + struct xfs_ifork *ifp; > + struct xfs_bmbt_irec got; > + struct xfs_bmbt_irec left; > + xfs_filblks_t blockcount; > + int error, i; > + > + ifp = XFS_IFORK_PTR(ip, whichfork); > + xfs_bmbt_get_all(gotp, &got); > + xfs_bmbt_get_all(leftp, &left); > + blockcount = left.br_blockcount + got.br_blockcount; > + > + ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL)); > + ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); > + ASSERT(xfs_bmap_shift_extents_can_merge(&left, &got, shift)); > + > + /* > + * Merge the in-core extents. Note that the host record pointers and > + * current_ext index are invalid once the extent has been removed via > + * xfs_iext_remove(). > + */ > + xfs_bmbt_set_blockcount(leftp, blockcount); > + xfs_iext_remove(ip, current_ext, 1, 0); > + > + /* > + * Update the on-disk extent count, the btree if necessary and log the > + * inode. > + */ > + XFS_IFORK_NEXT_SET(ip, whichfork, > + XFS_IFORK_NEXTENTS(ip, whichfork) - 1); > + *logflags |= XFS_ILOG_CORE; > + if (cur) { > + /* lookup and remove the extent to merge */ > + error = xfs_bmbt_lookup_eq(cur, got.br_startoff, > + got.br_startblock, got.br_blockcount, &i); > + if (error) > + goto error; Probably shouldn't give the jump label the same name as a variable in the function. "out_error" is commonly used here. > + XFS_WANT_CORRUPTED_GOTO(i == 1, error); > + > + error = xfs_btree_delete(cur, &i); > + if (error) > + goto error; > + XFS_WANT_CORRUPTED_GOTO(i == 1, error); > + > + /* lookup and update size of the previous extent */ > + error = xfs_bmbt_lookup_eq(cur, left.br_startoff, > + left.br_startblock, left.br_blockcount, &i); > + if (error) > + goto error; > + XFS_WANT_CORRUPTED_GOTO(i == 1, error); > + > + left.br_blockcount = blockcount; > + > + error = xfs_bmbt_update(cur, left.br_startoff, > + left.br_startblock, left.br_blockcount, > + left.br_state); > + if (error) > + goto error; > + } else { > + *logflags |= XFS_ILOG_DEXT; > + } > + > + return 0; > + > +error: > + return error; This code is much clearer, though I'd get rid of further indents by changing the logic around like so: .... *logflags |= XFS_ILOG_CORE; if (!cur) { *logflags |= XFS_ILOG_DEXT; return 0; } /* lookup and remove the extent to merge */ error = xfs_bmbt_lookup_eq(cur, got.br_startoff, got.br_startblock, got.br_blockcount, &i); if (error) goto out_error; ..... error = xfs_bmbt_update(cur, left.br_startoff, left.br_startblock, left.br_blockcount, left.br_state); out_error: return error; } > @@ -5493,30 +5617,42 @@ xfs_bmap_shift_extents( > */ > total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); > while (nexts++ < num_exts && current_ext < total_extents) { > - > - gotp = xfs_iext_get_ext(ifp, current_ext); > - xfs_bmbt_get_all(gotp, &got); > startoff = got.br_startoff - offset_shift_fsb; > > - /* > - * Before shifting extent into hole, make sure that the hole is > - * large enough to accommodate the shift. > - */ > + /* grab the left extent and check for a potential merge */ > if (current_ext > 0) { > - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, current_ext - 1), > - &left); > - if (startoff < left.br_startoff + left.br_blockcount) > + leftp = xfs_iext_get_ext(ifp, current_ext - 1); > + xfs_bmbt_get_all(leftp, &left); > + > + /* make sure hole is large enough for shift */ > + if (startoff < left.br_startoff + left.br_blockcount) { > error = -EINVAL; > - } else if (offset_shift_fsb > got.br_startoff) { > - /* > - * When first extent is shifted, offset_shift_fsb should > - * be less than the stating offset of the first extent. > - */ > - error = -EINVAL; > + goto del_cursor; > + } > + > + if (xfs_bmap_shift_extents_can_merge(&left, &got, > + offset_shift_fsb)) { > + error = xfs_bmap_shift_extents_merge(ip, whichfork, > + offset_shift_fsb, current_ext, gotp, > + leftp, cur, &logflags); > + if (error) > + goto del_cursor; > + > + /* > + * The extent was merged so adjust the extent > + * index and move onto the next. > + */ > + current_ext--; > + goto next; > + } > } > - if (error) > - goto del_cursor; > > + /* > + * We didn't merge the extent so do the shift. Update the start > + * offset in the in-core extent and btree, if necessary. > + */ > + xfs_bmbt_set_startoff(gotp, startoff); > + logflags |= XFS_ILOG_CORE; > if (cur) { > error = xfs_bmbt_lookup_eq(cur, got.br_startoff, > got.br_startblock, This doesn't do a lot to improve the code. It increases the level of indent and, IMO, makes it harder to read. It's a classic case of function names getting so long there's no space left for the code... So, how about s/xfs_bmap_shift_extents/xfs_bmse/ as a means of reducing the namespace verbosity? And, really, that whole loop body could be pushed into a separate function. i.e while (nexts++ < num_exts) { error = xfs_bmse_collapse_one(ip, ifp, cur, ¤t_ext, gotp, offset_shift_fsb, &logflags); if (error) goto del_cursor; /* check against total extent count, grab the next record */ total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); if (current_ext >= total_extents) break; gotp = xfs_iext_get_ext(ifp, current_ext); xfs_bmbt_get_all(gotp, &got); } That reduces all the jumps/error cases simply to return statements, allowing them to be ordered clearly to minimise the indent of the code. It also means that way the value of current_ext changes is obvious, rather than having the decrement/increment because of the "next iteration" handling in the loop always incrementing the value. Even the initial check outside the loop for: if (current_ext == 0 && got.br_startoff < offset_shift_fsb) { error = -EINVAL; goto del_cursor } could be driven inside xfs_bmse_collapse_one() as the first check that is done, and that would further simplify xfs_bmap_shift_extents(). i.e. xfs_bmse_collapse_one() { if (*current_ext == 0) { if (got.br_startoff < offset_shift_fsb) return -EINVAL; goto shift_extent; } /* get left, do merge checks */ .... if (!xfs_bmse_can_merge(&left, &got, offset_shift_fsb)) goto shift_extent; return xfs_bmse_merge(ip, whichfork, ...) shift_extent: (*current_ext)++; xfs_bmbt_set_startoff(gotp, startoff); logflags |= XFS_ILOG_CORE; if (!cur) *logflags |= XFS_ILOG_DEXT; return 0; } /* do btree shift */ .... return error; } This way we end up with a set of well defined operations, along with clear logic on how they are iterated to make do the overall shift operation. What do you think? Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Tue Sep 9 00:13:34 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 18B047F4E for ; Tue, 9 Sep 2014 00:13:34 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id DBD92304043 for ; Mon, 8 Sep 2014 22:13:30 -0700 (PDT) X-ASG-Debug-ID: 1410239608-04bdf0109a8428f0001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id mIm1tSlXIFqOZtBn for ; Mon, 08 Sep 2014 22:13:28 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Al0/ALGLDlR5LKYhPGdsb2JhbABZgw2BKoIsrkoGmm+FaQICAQEBgRAXBQEBAQE4N4QEAQUnExwjEAgDDgoJJQ8FJQMHGhOIQbwgARcYhWSEBIVNB4MvgR0FhhqJEo1GmSIrL4JPAQEB Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail04.adl6.internode.on.net with ESMTP; 09 Sep 2014 14:43:27 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XRDk6-0003i4-N7; Tue, 09 Sep 2014 15:13:26 +1000 Date: Tue, 9 Sep 2014 15:13:26 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 3/4] xfs: writeback and inval. file range to be shifted by collapse Message-ID: <20140909051326.GE20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 3/4] xfs: writeback and inval. file range to be shifted by collapse References: <1410092760-3451-1-git-send-email-bfoster@redhat.com> <1410092760-3451-4-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1410092760-3451-4-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1410239608 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9300 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sun, Sep 07, 2014 at 08:25:59AM -0400, Brian Foster wrote: > The collapse range operation currently writes the entire file before > starting the collapse to avoid changes in the in-core extent list due to > writeback causing the extent count to change. Now that collapse range is > fsb based rather than extent index based it can sustain changes in the > extent list during the shift sequence without disruption. > > Modify xfs_collapse_file_space() to writeback and invalidate pages > associated with the range of the file to be shifted. > xfs_free_file_space() currently has similar behavior, but the space free > need only affect the region of the file that is freed and this could > change in the future. > > Also update the comments to reflect the current implementation. We > retain the eofblocks trim permanently as a best option for dealing with > delalloc extents. We don't shift delalloc extents because this scenario > only occurs with post-eof preallocation (since data must be flushed such > that the cache can be invalidated and data can be shifted). That means > said space must also be initialized before being shifted into the > accessible region of the file only to be immediately truncated off as > the last part of the collapse. In other words, the eofblocks trim will > happen anyways, we just run it first to ensure the file remains in a > consistent state throughout the collapse. > > Finally, BUG() in the event of a delalloc extent during the extent shift > such that a failure is obvious. The implementation explicitly does not > support delalloc extents and the caller is expected to prevent this > scenario in advance as is done by collapse. > > Signed-off-by: Brian Foster > --- > fs/xfs/libxfs/xfs_bmap.c | 2 ++ > fs/xfs/xfs_bmap_util.c | 32 +++++++++++++++++++------------- > 2 files changed, 21 insertions(+), 13 deletions(-) > > diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c > index 449a016..1dd04c2 100644 > --- a/fs/xfs/libxfs/xfs_bmap.c > +++ b/fs/xfs/libxfs/xfs_bmap.c > @@ -5617,6 +5617,8 @@ xfs_bmap_shift_extents( > */ > total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); > while (nexts++ < num_exts && current_ext < total_extents) { > + /* can't handle delalloc extents */ > + BUG_ON(isnullstartblock(got.br_startblock)); XFS_WANT_CORRUPTED_GOTO() would be better, I think. Otherwise OK. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Tue Sep 9 00:14:54 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 810A37F52 for ; Tue, 9 Sep 2014 00:14:54 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 607FE8F8049 for ; Mon, 8 Sep 2014 22:14:54 -0700 (PDT) X-ASG-Debug-ID: 1410239692-04bdf010a0842bf0001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id I58hVrfE4r8RDGj9 for ; Mon, 08 Sep 2014 22:14:52 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Alw/ALGLDlR5LKYhPGdsb2JhbABZgw2BKoIsrkoGmm+FaQICAQEBgRAXBQEBAQE4N4QEAQU6HCMQCAMOCgklDwUlAwcaE4hBvCABFxiFZIlRB4MvgR0FjyyNRpkiKy+CTwEBAQ Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail04.adl6.internode.on.net with ESMTP; 09 Sep 2014 14:44:51 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XRDlS-0003iH-TA; Tue, 09 Sep 2014 15:14:50 +1000 Date: Tue, 9 Sep 2014 15:14:50 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 4/4] xfs: only writeback and truncate pages for the freed range Message-ID: <20140909051450.GF20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 4/4] xfs: only writeback and truncate pages for the freed range References: <1410092760-3451-1-git-send-email-bfoster@redhat.com> <1410092760-3451-5-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1410092760-3451-5-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1410239692 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9300 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sun, Sep 07, 2014 at 08:26:00AM -0400, Brian Foster wrote: > xfs_free_file_space() only affects the range of the file for which space > is being freed. It currently writes and truncates the page cache from > the start offset of the free to EOF. > > Modify xfs_free_file_space() to write back and truncate page cache of > just the range being freed. > > Signed-off-by: Brian Foster looks good. Reviewed-by: Dave Chinner -- Dave Chinner david@fromorbit.com From bfoster@redhat.com Tue Sep 9 09:29:20 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 28F897F3F for ; Tue, 9 Sep 2014 09:29:20 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 79C0FAC004 for ; Tue, 9 Sep 2014 07:29:16 -0700 (PDT) X-ASG-Debug-ID: 1410272951-04cbb05487b71cf0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id iO60noJrO4HE8T6a (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 09 Sep 2014 07:29:11 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s89ET9aS025319 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 9 Sep 2014 10:29:10 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s89DixX0000407; Tue, 9 Sep 2014 09:44:59 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 86F681256F8; Tue, 9 Sep 2014 09:44:58 -0400 (EDT) Date: Tue, 9 Sep 2014 09:44:58 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH] xfs: xlog_cil_force_lsn doesn't always wait correctly Message-ID: <20140909134458.GA35182@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs: xlog_cil_force_lsn doesn't always wait correctly References: <1410226995-15714-1-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1410226995-15714-1-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410272951 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Sep 09, 2014 at 11:43:15AM +1000, Dave Chinner wrote: > From: Dave Chinner > > When running a tight mount/unmount loop on an older kernel, RedHat > QE found that unmount would occasionally hang in > xfs_buf_unpin_wait() on the superblock buffer. Tracing and other > debug work by Eric Sandeen indicated that it was hanging on the > writing of the superblock during unmount immediately after logging > the superblock counters in a synchronous transaction. Further debug > indicated that the synchronous transaction was not waiting for > completion correctly, and we narrowed it down to > xlog_cil_force_lsn() returning NULLCOMMITLSN and hence not pushing > the transaction in the iclog buffer to disk correctly. > > While this unmount superblock write code is now very different in > mainline kernels, the xlog_cil_force_lsn() code is identical, and it > was bisected to the backport of commit f876e44 ("xfs: always do log > forces via the workqueue"). This commit made the CIL push > asynchronous for log forces and hence exposed a race condition that > couldn't occur on a synchronous push. > > Essentially, the xlog_cil_force_lsn() relied implicitly on the fact > that the sequence push would be complete by the time > xlog_cil_push_now() returned, resulting in the context being pushed > being in the committing list. When it was made asynchronous, it was > recognised that there was a race condition in detecting whether an > asynchronous push has started or not and code was added to handle > it. > > Unfortunately, the fix was not quite right and left a race condition > where it it would detect an empty CIL while a push was in progress > before the context had been added to the committing list. This was > incorrectly seen as a "nothing to do" condition and so would tell > xfs_log_force_lsn() that there is nothing to wait for, and hence it > would push the iclogbufs in memory. > > The fix is simple, but explaining the logic and the race condition > is a lot more complex. The fix is to add the context to the > committing list before we start emptying the CIL. This allows us to > detect the difference between an empty "do nothing" push and a push > that has not started by adding a discrete "emptying the CIL" state > to avoid the transient, incorrect "empty" condition that the > (unchanged) waiting code was seeing. > > Signed-off-by: Dave Chinner > Tested-by: Eric Sandeen > --- The pusher side queues the work, acquires xc_push_lock, walks the committing list and then does this: if (sequence == cil->xc_current_sequence && !list_empty(&cil->xc_cil)) { spin_unlock(&cil->xc_push_lock); goto restart; } ... which is effectively peeking into the cil state to see if the push actually needed to do anything. The purpose is to identify the case where the push hasn't occurred and the previous committing list traversal was insufficient. The "pushee" side drains the cil, updates the current sequence and adds the ctx to the committing list. The time between the cil drain and list_add() creates a window where, according to the logic above, the cil push looks like it wasn't going to do anything from the pusher perspective. The latter two bits occur under xc_push_lock (spinlock), so perhaps that widens a window to make this slightly more reproducible. The pushee work is all done under xc_ctx_lock, so generally this is an issue because the pusher doesn't acquire xc_ctx_lock, and thus the cil drain and ctx update are not seen as atomic. I presume this is lockless by design, so taking the lock is not a desired solution. Therefore, the order of changes to data structures that the pusher peeks into is updated on the pushee side to add to the committing list, drain the cil and update the current sequence number. For the pusher side, this means the committing list walk and logic above (all under xc_push_lock) either sees the ctx on the list or not. If the ctx is on the list, then we waited for it and there is no race. If the ctx is not on the list, it is either populated and waiting to be added to the list (e.g., we hold xc_push_lock) or empty and there's nothing to do (regardless of whether the pusher side has run or not). That seems sound to me. It would be nice of we could somehow make this explicitly more simple rather than dependent on complex ordering (e.g., a push completion or something of that sort), but that's for another time. One nit below... > fs/xfs/xfs_log_cil.c | 47 ++++++++++++++++++++++++++++++++++++++--------- > 1 file changed, 38 insertions(+), 9 deletions(-) > > diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c > index f6b79e5..f506c45 100644 > --- a/fs/xfs/xfs_log_cil.c > +++ b/fs/xfs/xfs_log_cil.c > @@ -463,12 +463,40 @@ xlog_cil_push( > spin_unlock(&cil->xc_push_lock); > goto out_skip; > } > - spin_unlock(&cil->xc_push_lock); > > > /* check for a previously pushed seqeunce */ > - if (push_seq < cil->xc_ctx->sequence) > + if (push_seq < cil->xc_ctx->sequence) { > + spin_unlock(&cil->xc_push_lock); > goto out_skip; > + } > + Looks like out_skip could unlock xc_push_lock now. Reviewed-by: Brian Foster > + /* > + * We are now going to push this context, so add it to the committing > + * list before we do anything else. This ensures that anyone waiting on > + * this push can easily detect the difference between a "push in > + * progress" and "CIL is empty, nothing to do". > + * > + * IOWs, a wait loop can now check for: > + * the current sequence not being found on the committing list; > + * an empty CIL; and > + * an unchanged sequence number > + * to detect a push that had nothing to do and therefore does not need > + * waiting on. If the CIL is not empty, we get put on the committing > + * list before emptying the CIL and bumping the sequence number. Hence > + * an empty CIL and an unchanged sequence number means we jumped out > + * above after doing nothing. > + * > + * Hence the waiter will either find the commit sequence on the > + * committing list or the sequence number will be unchanged and the CIL > + * still dirty. In that latter case, the push has not yet started, and > + * so the waiter will have to continue trying to check the CIL > + * committing list until it is found. In extreme cases of delay, the > + * sequence may fully commit between the attempts the wait makes to wait > + * on the commit sequence. > + */ > + list_add(&ctx->committing, &cil->xc_committing); > + spin_unlock(&cil->xc_push_lock); > > /* > * pull all the log vectors off the items in the CIL, and > @@ -532,7 +560,6 @@ xlog_cil_push( > */ > spin_lock(&cil->xc_push_lock); > cil->xc_current_sequence = new_ctx->sequence; > - list_add(&ctx->committing, &cil->xc_committing); > spin_unlock(&cil->xc_push_lock); > up_write(&cil->xc_ctx_lock); > > @@ -855,13 +882,15 @@ restart: > * Hence by the time we have got here it our sequence may not have been > * pushed yet. This is true if the current sequence still matches the > * push sequence after the above wait loop and the CIL still contains > - * dirty objects. > + * dirty objects. This is guaranteed by the push code first adding the > + * context to the committing list before emptying the CIL. > * > - * When the push occurs, it will empty the CIL and atomically increment > - * the currect sequence past the push sequence and move it into the > - * committing list. Of course, if the CIL is clean at the time of the > - * push, it won't have pushed the CIL at all, so in that case we should > - * try the push for this sequence again from the start just in case. > + * Hence if we don't find the context in the committing list and the > + * current sequence number is unchanged then the CIL contents are > + * significant. If the CIL is empty, if means there was nothing to push > + * and that means there is nothing to wait for. If the CIL is not empty, > + * it means we haven't yet started the push, because if it had started > + * we would have found the context on the committing list. > */ > if (sequence == cil->xc_current_sequence && > !list_empty(&cil->xc_cil)) { > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Tue Sep 9 10:04:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2D4FB7F3F for ; Tue, 9 Sep 2014 10:04:38 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 0D54A8F8033 for ; Tue, 9 Sep 2014 08:04:34 -0700 (PDT) X-ASG-Debug-ID: 1410275069-04cb6c54fd8df010001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id qV06eSObmJmuHtt1 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 09 Sep 2014 08:04:30 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s89F4Sev007494 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 9 Sep 2014 11:04:28 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s89F4R3j008375; Tue, 9 Sep 2014 11:04:27 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 99AFD1256F8; Tue, 9 Sep 2014 11:04:26 -0400 (EDT) Date: Tue, 9 Sep 2014 11:04:26 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/4] xfs: refactor xfs_bmap_shift_extents() into multiple functions Message-ID: <20140909150426.GC35182@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 2/4] xfs: refactor xfs_bmap_shift_extents() into multiple functions References: <1410092760-3451-1-git-send-email-bfoster@redhat.com> <1410092760-3451-3-git-send-email-bfoster@redhat.com> <20140909050800.GD20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140909050800.GD20518@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410275070 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Sep 09, 2014 at 03:08:00PM +1000, Dave Chinner wrote: > On Sun, Sep 07, 2014 at 08:25:58AM -0400, Brian Foster wrote: > > The extent shift mechanism in xfs_bmap_shift_extents() is complicated > > and handles several different, non-deterministic scenarios. These > > include extent shifts, extent merges and potential btree updates in > > either of the former scenarios. > > > > Refactor the code to be more linear and readable. The loop logic in > > xfs_bmap_shift_extents() and some initial error checking is adjusted > > slightly. The associated btree lookup and update/delete operations are > > condensed into single blocks of code. This reduces the number of > > btree-specific blocks and facilitates the separation of the merge > > operation into a new xfs_bmap_shift_extents_merge() helper. The merge > > check is also separated into an inline. > > > > This is a code refactor only. The behavior of extent shift and collapse > > range is not modified. > > > > Signed-off-by: Brian Foster > > --- > > fs/xfs/libxfs/xfs_bmap.c | 243 ++++++++++++++++++++++++++++++++--------------- > > 1 file changed, 168 insertions(+), 75 deletions(-) > > > > diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c > > index 4b3f1b9..449a016 100644 > > --- a/fs/xfs/libxfs/xfs_bmap.c > > +++ b/fs/xfs/libxfs/xfs_bmap.c > > @@ -5404,6 +5404,120 @@ error0: > > } > > > > /* > > + * Determine whether an extent shift can be accomplished by a merge with the > > + * extent that precedes the target hole of the shift. > > + */ > > +static inline bool > > +xfs_bmap_shift_extents_can_merge( > > No need for "inline" for static functions. The compiler will do that > as an optimisation if appropriate. > Ok. > > + struct xfs_bmbt_irec *left, /* preceding extent */ > > + struct xfs_bmbt_irec *got, /* current extent to shift */ > > + xfs_fileoff_t shift) /* shift fsb */ > > +{ > > + xfs_fileoff_t startoff; > > + > > + startoff = got->br_startoff - shift; > > + > > + /* > > + * The extent, once shifted, must be adjacent in-file and on-disk with > > + * the preceding extent. > > + */ > > + if ((left->br_startoff + left->br_blockcount != startoff) || > > + (left->br_startblock + left->br_blockcount != got->br_startblock) || > > + (left->br_state != got->br_state) || > > + (left->br_blockcount + got->br_blockcount > MAXEXTLEN)) > > + return false; > > + > > + return true; > > +} > > + > > +/* > > + * An extent shift adjusts the file offset of an extent to fill a preceding hole > > + * in the file. If an extent shift would result in the extent being fully > > + * adjacent to the extent that currently precedes the hole, we can merge with > > + * the preceding extent rather than do the shift. > > + * > > + * This function assumes the caller has verified a shift-by-merge is possible > > + * with the provided extents via xfs_bmap_shift_extents_can_merge(). > > + */ > > +static int > > +xfs_bmap_shift_extents_merge( > > + struct xfs_inode *ip, > > + int whichfork, > > + xfs_fileoff_t shift, /* shift fsb */ > > + int current_ext, /* idx of gotp */ > > + struct xfs_bmbt_rec_host *gotp, /* extent to shift */ > > + struct xfs_bmbt_rec_host *leftp, /* preceding extent */ > > + struct xfs_btree_cur *cur, > > + int *logflags) /* output */ > > +{ > > + struct xfs_ifork *ifp; > > + struct xfs_bmbt_irec got; > > + struct xfs_bmbt_irec left; > > + xfs_filblks_t blockcount; > > + int error, i; > > + > > + ifp = XFS_IFORK_PTR(ip, whichfork); > > + xfs_bmbt_get_all(gotp, &got); > > + xfs_bmbt_get_all(leftp, &left); > > + blockcount = left.br_blockcount + got.br_blockcount; > > + > > + ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL)); > > + ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); > > + ASSERT(xfs_bmap_shift_extents_can_merge(&left, &got, shift)); > > + > > + /* > > + * Merge the in-core extents. Note that the host record pointers and > > + * current_ext index are invalid once the extent has been removed via > > + * xfs_iext_remove(). > > + */ > > + xfs_bmbt_set_blockcount(leftp, blockcount); > > + xfs_iext_remove(ip, current_ext, 1, 0); > > + > > + /* > > + * Update the on-disk extent count, the btree if necessary and log the > > + * inode. > > + */ > > + XFS_IFORK_NEXT_SET(ip, whichfork, > > + XFS_IFORK_NEXTENTS(ip, whichfork) - 1); > > + *logflags |= XFS_ILOG_CORE; > > + if (cur) { > > + /* lookup and remove the extent to merge */ > > + error = xfs_bmbt_lookup_eq(cur, got.br_startoff, > > + got.br_startblock, got.br_blockcount, &i); > > + if (error) > > + goto error; > > Probably shouldn't give the jump label the same name as a variable > in the function. "out_error" is commonly used here. > Ok. > > + XFS_WANT_CORRUPTED_GOTO(i == 1, error); > > + > > + error = xfs_btree_delete(cur, &i); > > + if (error) > > + goto error; > > + XFS_WANT_CORRUPTED_GOTO(i == 1, error); > > + > > + /* lookup and update size of the previous extent */ > > + error = xfs_bmbt_lookup_eq(cur, left.br_startoff, > > + left.br_startblock, left.br_blockcount, &i); > > + if (error) > > + goto error; > > + XFS_WANT_CORRUPTED_GOTO(i == 1, error); > > + > > + left.br_blockcount = blockcount; > > + > > + error = xfs_bmbt_update(cur, left.br_startoff, > > + left.br_startblock, left.br_blockcount, > > + left.br_state); > > + if (error) > > + goto error; > > + } else { > > + *logflags |= XFS_ILOG_DEXT; > > + } > > + > > + return 0; > > + > > +error: > > + return error; > > This code is much clearer, though I'd get rid of further > indents by changing the logic around like so: > Yeah, good idea. > .... > *logflags |= XFS_ILOG_CORE; > if (!cur) { > *logflags |= XFS_ILOG_DEXT; > return 0; > } > > /* lookup and remove the extent to merge */ > error = xfs_bmbt_lookup_eq(cur, got.br_startoff, > got.br_startblock, got.br_blockcount, &i); > if (error) > goto out_error; > ..... > > error = xfs_bmbt_update(cur, left.br_startoff, > left.br_startblock, left.br_blockcount, > left.br_state); > out_error: > return error; > } > > > @@ -5493,30 +5617,42 @@ xfs_bmap_shift_extents( > > */ > > total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); > > while (nexts++ < num_exts && current_ext < total_extents) { > > - > > - gotp = xfs_iext_get_ext(ifp, current_ext); > > - xfs_bmbt_get_all(gotp, &got); > > startoff = got.br_startoff - offset_shift_fsb; > > > > - /* > > - * Before shifting extent into hole, make sure that the hole is > > - * large enough to accommodate the shift. > > - */ > > + /* grab the left extent and check for a potential merge */ > > if (current_ext > 0) { > > - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, current_ext - 1), > > - &left); > > - if (startoff < left.br_startoff + left.br_blockcount) > > + leftp = xfs_iext_get_ext(ifp, current_ext - 1); > > + xfs_bmbt_get_all(leftp, &left); > > + > > + /* make sure hole is large enough for shift */ > > + if (startoff < left.br_startoff + left.br_blockcount) { > > error = -EINVAL; > > - } else if (offset_shift_fsb > got.br_startoff) { > > - /* > > - * When first extent is shifted, offset_shift_fsb should > > - * be less than the stating offset of the first extent. > > - */ > > - error = -EINVAL; > > + goto del_cursor; > > + } > > + > > + if (xfs_bmap_shift_extents_can_merge(&left, &got, > > + offset_shift_fsb)) { > > + error = xfs_bmap_shift_extents_merge(ip, whichfork, > > + offset_shift_fsb, current_ext, gotp, > > + leftp, cur, &logflags); > > + if (error) > > + goto del_cursor; > > + > > + /* > > + * The extent was merged so adjust the extent > > + * index and move onto the next. > > + */ > > + current_ext--; > > + goto next; > > + } > > } > > - if (error) > > - goto del_cursor; > > > > + /* > > + * We didn't merge the extent so do the shift. Update the start > > + * offset in the in-core extent and btree, if necessary. > > + */ > > + xfs_bmbt_set_startoff(gotp, startoff); > > + logflags |= XFS_ILOG_CORE; > > if (cur) { > > error = xfs_bmbt_lookup_eq(cur, got.br_startoff, > > got.br_startblock, > > This doesn't do a lot to improve the code. It increases the level of > indent and, IMO, makes it harder to read. It's a classic case of > function names getting so long there's no space left for the code... > > So, how about s/xfs_bmap_shift_extents/xfs_bmse/ as a means of > reducing the namespace verbosity? And, really, that whole loop body > could be pushed into a separate function. i.e > > while (nexts++ < num_exts) { > error = xfs_bmse_collapse_one(ip, ifp, cur, ¤t_ext, gotp, > offset_shift_fsb, &logflags); > if (error) > goto del_cursor; > > /* check against total extent count, grab the next record */ > total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); > if (current_ext >= total_extents) > break; > gotp = xfs_iext_get_ext(ifp, current_ext); > xfs_bmbt_get_all(gotp, &got); > } > > That reduces all the jumps/error cases simply to return statements, > allowing them to be ordered clearly to minimise the indent of > the code. It also means that way the value of current_ext changes is > obvious, rather than having the decrement/increment because of the > "next iteration" handling in the loop always incrementing the value. > > Even the initial check outside the loop for: > > if (current_ext == 0 && got.br_startoff < offset_shift_fsb) { > error = -EINVAL; > goto del_cursor > } > > could be driven inside xfs_bmse_collapse_one() as the first check that > is done, and that would further simplify xfs_bmap_shift_extents(). > i.e. > > xfs_bmse_collapse_one() > { > if (*current_ext == 0) { > if (got.br_startoff < offset_shift_fsb) > return -EINVAL; > goto shift_extent; > } > > /* get left, do merge checks */ > .... > if (!xfs_bmse_can_merge(&left, &got, offset_shift_fsb)) > goto shift_extent; > > return xfs_bmse_merge(ip, whichfork, ...) > > shift_extent: > (*current_ext)++; > xfs_bmbt_set_startoff(gotp, startoff); > logflags |= XFS_ILOG_CORE; > if (!cur) > *logflags |= XFS_ILOG_DEXT; > return 0; > } > > /* do btree shift */ > .... > return error; > } > > This way we end up with a set of well defined operations, along > with clear logic on how they are iterated to make do the overall > shift operation. > > What do you think? > That all sounds pretty good to me. I may incorporate the aforementioned updates to the merge bits to this patch and create a new patch for the subsequent refactor of the loop body. E.g., this patch becomes "... refactor extent merge into new function." But I'll play with it and see what falls out... thanks for the feedback. Brian > Cheers, > > Dave. > > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Tue Sep 9 10:17:02 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id EBE8E7F3F for ; Tue, 9 Sep 2014 10:17:02 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id BB67E304048 for ; Tue, 9 Sep 2014 08:17:02 -0700 (PDT) X-ASG-Debug-ID: 1410275821-04bdf0109a891390001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 3U7TaoniPoGn56GI (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 09 Sep 2014 08:17:01 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s89FGxfR007313 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 9 Sep 2014 11:16:59 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s89FGwPW014596; Tue, 9 Sep 2014 11:16:58 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id AB6B21256F8; Tue, 9 Sep 2014 11:16:57 -0400 (EDT) Date: Tue, 9 Sep 2014 11:16:57 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 3/4] xfs: writeback and inval. file range to be shifted by collapse Message-ID: <20140909151657.GD35182@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 3/4] xfs: writeback and inval. file range to be shifted by collapse References: <1410092760-3451-1-git-send-email-bfoster@redhat.com> <1410092760-3451-4-git-send-email-bfoster@redhat.com> <20140909051326.GE20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140909051326.GE20518@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410275821 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Sep 09, 2014 at 03:13:26PM +1000, Dave Chinner wrote: > On Sun, Sep 07, 2014 at 08:25:59AM -0400, Brian Foster wrote: > > The collapse range operation currently writes the entire file before > > starting the collapse to avoid changes in the in-core extent list due to > > writeback causing the extent count to change. Now that collapse range is > > fsb based rather than extent index based it can sustain changes in the > > extent list during the shift sequence without disruption. > > > > Modify xfs_collapse_file_space() to writeback and invalidate pages > > associated with the range of the file to be shifted. > > xfs_free_file_space() currently has similar behavior, but the space free > > need only affect the region of the file that is freed and this could > > change in the future. > > > > Also update the comments to reflect the current implementation. We > > retain the eofblocks trim permanently as a best option for dealing with > > delalloc extents. We don't shift delalloc extents because this scenario > > only occurs with post-eof preallocation (since data must be flushed such > > that the cache can be invalidated and data can be shifted). That means > > said space must also be initialized before being shifted into the > > accessible region of the file only to be immediately truncated off as > > the last part of the collapse. In other words, the eofblocks trim will > > happen anyways, we just run it first to ensure the file remains in a > > consistent state throughout the collapse. > > > > Finally, BUG() in the event of a delalloc extent during the extent shift > > such that a failure is obvious. The implementation explicitly does not > > support delalloc extents and the caller is expected to prevent this > > scenario in advance as is done by collapse. > > > > Signed-off-by: Brian Foster > > --- > > fs/xfs/libxfs/xfs_bmap.c | 2 ++ > > fs/xfs/xfs_bmap_util.c | 32 +++++++++++++++++++------------- > > 2 files changed, 21 insertions(+), 13 deletions(-) > > > > diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c > > index 449a016..1dd04c2 100644 > > --- a/fs/xfs/libxfs/xfs_bmap.c > > +++ b/fs/xfs/libxfs/xfs_bmap.c > > @@ -5617,6 +5617,8 @@ xfs_bmap_shift_extents( > > */ > > total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); > > while (nexts++ < num_exts && current_ext < total_extents) { > > + /* can't handle delalloc extents */ > > + BUG_ON(isnullstartblock(got.br_startblock)); > > XFS_WANT_CORRUPTED_GOTO() would be better, I think. > Ok. I suppose we'll shutdown the fs if the transaction was dirtied by that point anyways. I want to make sure the failure is explicit more than anything, as opposed to an unclear and non-guaranteed lookup failure in the event of a btree, so that works for me. Brian > Otherwise OK. > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From lrhorer@mygrande.net Tue Sep 9 10:21:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B7FDA7F3F for ; Tue, 9 Sep 2014 10:21:39 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id A52D68F8033 for ; Tue, 9 Sep 2014 08:21:39 -0700 (PDT) X-ASG-Debug-ID: 1410276098-04cb6c55008e5420001-NocioJ Received: from mail02.lsn.net (mail02.lsn.net [66.90.130.128]) by cuda.sgi.com with ESMTP id xlASPbMt4ehFJtFP for ; Tue, 09 Sep 2014 08:21:38 -0700 (PDT) X-Barracuda-Envelope-From: lrhorer@mygrande.net X-Barracuda-Apparent-Source-IP: 66.90.130.128 Received: from [192.168.1.121] (24-155-170-173.dyn.grandenetworks.net [24.155.170.173]) (authenticated bits=0) by mail02.lsn.net (8.14.4/8.13.6) with ESMTP id s89FLbvW016316 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Tue, 9 Sep 2014 10:21:38 -0500 X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.98.4 at av02.lsn.net Message-ID: <540F1B01.3020700@mygrande.net> Date: Tue, 09 Sep 2014 10:21:37 -0500 From: Leslie Rhorer User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: Corrupted files Content-Type: text/plain; charset=ISO-8859-1; format=flowed X-ASG-Orig-Subj: Corrupted files Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail02.lsn.net[66.90.130.128] X-Barracuda-Start-Time: 1410276098 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9311 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hello, I have an issue with my primary RAID array. I have 13T of data on the array, and I suffered a major array failure. I was able to rebuild the array, but some data was lost. Of course I have backups, so after running xfs_repair, I ran an rsync job to recover the lost data. Most of it was recovered, but there are several files that cannot be read, deleted, or overwritten. I have tried running xfs_repair several times, but any attempt to access these files continuously reports "cannot stat XXXXXXXX: Structure needs cleaning". I don't need to try to recover the data directly, as it does reside on the backup, but I need to clear the file structure so I can write the files back to the filesystem. How do I proceed? From scaron@umich.edu Tue Sep 9 10:50:34 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 6B38E7F3F for ; Tue, 9 Sep 2014 10:50:34 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 3B42A8F8040 for ; Tue, 9 Sep 2014 08:50:34 -0700 (PDT) X-ASG-Debug-ID: 1410277831-04bdf0109a897ec0001-NocioJ Received: from mail-qc0-f182.google.com (mail-qc0-f182.google.com [209.85.216.182]) by cuda.sgi.com with ESMTP id MHQF2yBbRRG3iizJ (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Tue, 09 Sep 2014 08:50:32 -0700 (PDT) X-Barracuda-Envelope-From: scaron@umich.edu X-Barracuda-Apparent-Source-IP: 209.85.216.182 Received: by mail-qc0-f182.google.com with SMTP id x13so4563568qcv.27 for ; Tue, 09 Sep 2014 08:50:31 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=6Jk96zXZgVhiP8yAZ0S0bvg8qEf3S6I5j9Lj5rwVHJE=; b=OE4Fg0XDCOf6Sfr74kbTq5rYPYeucfQAYch5Uca3GeD08GAmMCMC1jAT/eg8okGJ0g AGYzPmusFykl6J+n7dvvSpV+tdNVUDZwpntOYOzX5oKuLYTMD2uXOFmHfKEuK2hqKpk3 8utlck7T0acUsU07lp5FoD/uMUEdhWWdFYF9aD98k3Eq0fUkgJ1304Ebc7KUIgV/AK4U 5Do5RCSGHNrfvvaaJCxfj0yKKsJH99yeSezBz1ChVZPb1mpfWC6h7Sn+atQq1rXlq/DS weGc/Loo7vVWPf8ubyuSoj+FVt6e3HU26iz3HMKMWkFXBjESblm7LroR8IPxxEfK6lIu tEfg== X-Gm-Message-State: ALoCoQlKlZUuiwBf6Gslsqv9oatJEchZuhZG1axAVduIqX+IKzAa2N/SawaLvVw7tjZa5zZIlI4j MIME-Version: 1.0 X-Received: by 10.140.17.9 with SMTP id 9mr14074783qgc.47.1410277828312; Tue, 09 Sep 2014 08:50:28 -0700 (PDT) Received: by 10.224.8.132 with HTTP; Tue, 9 Sep 2014 08:50:28 -0700 (PDT) In-Reply-To: <540F1B01.3020700@mygrande.net> References: <540F1B01.3020700@mygrande.net> Date: Tue, 9 Sep 2014 11:50:28 -0400 Message-ID: Subject: Re: Corrupted files From: Sean Caron X-ASG-Orig-Subj: Re: Corrupted files To: Leslie Rhorer , Sean Caron Cc: "xfs@oss.sgi.com" Content-Type: multipart/alternative; boundary=001a11c0b36afdf0b70502a3e41a X-Barracuda-Connect: mail-qc0-f182.google.com[209.85.216.182] X-Barracuda-Start-Time: 1410277831 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9311 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message --001a11c0b36afdf0b70502a3e41a Content-Type: text/plain; charset=UTF-8 Hi Leslie, If you have a full backup, I would STRONGLY recommend just wiping your old filesystem and restoring your backups on top of a totally fresh XFS, rather than repairing the original filesystem and then filling in the blanks with backups using a file-diff tool like rsync. You will probably hear various opinions here about xfs_repair; my personal opinion is that xfs_repair is a program made available for the unwary to further scramble their data and make a hash of the filesystem... In my first-hand experience managing ~7 PB of XFS storage and growing, I have NEVER found xfs_repair (yes, even the "newest version") to ever do anything positive. It's basically a data scrambler. At this point, you will never achieve anything near what I'd consider a production-grade, trustworthy data repository. Any further runs of xfs_repair will either do nothing, or make the situation worse. Fortunately you followed best practice and kept backups so you don't really need xfs_repair anyway, right? Best, Sean P.S. No backups? Still don't even think about running xfs_repair. ESPECIALLY don't think about running xfs_repair. Try mounting ro; if that doesn't work, mount ro with noreplaylog and scavenge what you can. Write off the rest. That's the cost of doing business without backups. Running xfs_repair (especially as a first-line step) will only make it worse, and especially on big filesystems, the run time can extend to weeks... Don't keep your users down any longer than you need to, running a program that won't really help you. Just scavenge it, reformat and turn it back around. On Tue, Sep 9, 2014 at 11:21 AM, Leslie Rhorer wrote: > > Hello, > > I have an issue with my primary RAID array. I have 13T of data on > the array, and I suffered a major array failure. I was able to rebuild the > array, but some data was lost. Of course I have backups, so after running > xfs_repair, I ran an rsync job to recover the lost data. Most of it was > recovered, but there are several files that cannot be read, deleted, or > overwritten. I have tried running xfs_repair several times, but any > attempt to access these files continuously reports "cannot stat XXXXXXXX: > Structure needs cleaning". I don't need to try to recover the data > directly, as it does reside on the backup, but I need to clear the file > structure so I can write the files back to the filesystem. How do I > proceed? > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs > --001a11c0b36afdf0b70502a3e41a Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi Leslie,

If you have a full backup, I= would STRONGLY recommend just wiping your old filesystem and restoring you= r backups on top of a totally fresh XFS, rather than repairing the original= filesystem and then filling in the blanks with backups using a file-diff t= ool like rsync.

You will probably hear various opi= nions here about xfs_repair; my personal opinion is that xfs_repair is a pr= ogram made available for the unwary to further scramble their data and make= a hash of the filesystem... In my first-hand experience managing ~7 PB of = XFS storage and growing, I have NEVER found xfs_repair (yes, even the "= ;newest version") to ever do anything positive. It's basically a d= ata scrambler.

At this point, you will never achie= ve anything near what I'd consider a production-grade, trustworthy data= repository. Any further runs of xfs_repair will either do nothing, or make= the situation worse. Fortunately you followed best practice and kept backu= ps so you don't really need xfs_repair anyway, right?

Best,

Sean

P.S. N= o backups? Still don't even think about running xfs_repair. ESPECIALLY = don't think about running xfs_repair. Try mounting ro; if that doesn= 9;t work, mount ro with noreplaylog and scavenge what you can. Write off th= e rest. That's the cost of doing business without backups. Running xfs_= repair (especially as a first-line step) will only make it worse, and espec= ially on big filesystems, the run time can extend to weeks... Don't kee= p your users down any longer than you need to, running a program that won&#= 39;t really help you. Just scavenge it, reformat and turn it back around.





On Tue, Sep 9, 2014 at= 11:21 AM, Leslie Rhorer <lrhorer@mygrande.net> wrote:

Hello,

=C2=A0 =C2=A0 =C2=A0 =C2=A0 I have an issue with my primary RAID array.=C2= =A0 I have 13T of data on the array, and I suffered a major array failure.= =C2=A0 I was able to rebuild the array, but some data was lost.=C2=A0 Of co= urse I have backups, so after running xfs_repair, I ran an rsync job to rec= over the lost data.=C2=A0 Most of it was recovered, but there are several f= iles that cannot be read, deleted, or overwritten.=C2=A0 I have tried runni= ng xfs_repair several times, but any attempt to access these files continuo= usly reports "cannot stat XXXXXXXX: Structure needs cleaning".=C2= =A0 I don't need to try to recover the data directly, as it does reside= on the backup, but I need to clear the file structure so I can write the f= iles back to the filesystem.=C2=A0 How do I proceed?

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

--001a11c0b36afdf0b70502a3e41a-- From scaron@umich.edu Tue Sep 9 11:04:05 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 07FD47F3F for ; Tue, 9 Sep 2014 11:04:05 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 66A54AC003 for ; Tue, 9 Sep 2014 09:04:01 -0700 (PDT) X-ASG-Debug-ID: 1410278638-04cbb05488b86f60001-NocioJ Received: from mail-qc0-f178.google.com (mail-qc0-f178.google.com [209.85.216.178]) by cuda.sgi.com with ESMTP id YyqEJqwJ5g15dRGx (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Tue, 09 Sep 2014 09:03:59 -0700 (PDT) X-Barracuda-Envelope-From: scaron@umich.edu X-Barracuda-Apparent-Source-IP: 209.85.216.178 Received: by mail-qc0-f178.google.com with SMTP id x13so17476707qcv.37 for ; Tue, 09 Sep 2014 09:03:56 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=9v/UVTMRdzXiUBvQB5G10Xod3NqMv+4icDiwAgRDfek=; b=CLdPX1GkZohuLi3W0FPkmZ/APfjfnuwiXJeA7YYmFcuxQbnaiN5njFC5AhiNTGMTb1 85qYo2Cl88yUtHJqW6M4EcrP2GD2FL5KIqCHjQn7w3/2Jr58QVqCJ/okKF2jIxf2MjUb f8LTsPSnCQAcRQCcRBjLWymiENnkkj5sRozSixaLEpNjubH7KbtOTbo460Yk7L45+/a+ EYEO66ivQTJxEJLg4Uy6wC4dXDg3eDZfxUuo7FqQ/ntc7xdXaJpDNNGam2039+l/qxT9 XLQlwPYkF+AyeejSwjkW5VYc0aSegCPLS9IKSbz1zDgi62ZVNS4T3og6UISK9XwdcbYU fD3A== X-Gm-Message-State: ALoCoQkhAhDIv1xZ3PU+3QJclq4irv2D+P723Jk/fvkO31ModFjwPUhmD1xToUEoy/SUVZ1hSt9y MIME-Version: 1.0 X-Received: by 10.224.167.72 with SMTP id p8mr52986634qay.62.1410278636082; Tue, 09 Sep 2014 09:03:56 -0700 (PDT) Received: by 10.224.8.132 with HTTP; Tue, 9 Sep 2014 09:03:56 -0700 (PDT) In-Reply-To: References: <540F1B01.3020700@mygrande.net> Date: Tue, 9 Sep 2014 12:03:56 -0400 Message-ID: Subject: Re: Corrupted files From: Sean Caron X-ASG-Orig-Subj: Re: Corrupted files To: Leslie Rhorer , Sean Caron Cc: "xfs@oss.sgi.com" Content-Type: multipart/alternative; boundary=089e0149c46e2367870502a41522 X-Barracuda-Connect: mail-qc0-f178.google.com[209.85.216.178] X-Barracuda-Start-Time: 1410278638 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC5_SA210e, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9311 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message 0.00 BSF_SC5_SA210e Custom Rule SA210e --089e0149c46e2367870502a41522 Content-Type: text/plain; charset=UTF-8 OK, let me retract just a tiny fraction of what I said originally; thinking about it further, there was _one_ time I was able to use xfs_repair to successfully recover a "lightly bruised" XFS and return it to service. But in that case, the fault was very minor and I always check first with: xfs_repair [-L] -n -v and give the output a good looking over before proceeding further. If it won't run without zeroing the log, you can take that as a sign that things are getting dire.. I wouldn't bother to run xfs_repair "for real" if the trial output looked even slightly non-trivial, in cases of underlying array failure or massive filesystem corruption, and I'd never run it without mounting and scavenging first (unless I had a very recent full backup). Barring rare cases, xfs_repair is bad juju. Best, Sean On Tue, Sep 9, 2014 at 11:50 AM, Sean Caron wrote: > Hi Leslie, > > If you have a full backup, I would STRONGLY recommend just wiping your old > filesystem and restoring your backups on top of a totally fresh XFS, rather > than repairing the original filesystem and then filling in the blanks with > backups using a file-diff tool like rsync. > > You will probably hear various opinions here about xfs_repair; my personal > opinion is that xfs_repair is a program made available for the unwary to > further scramble their data and make a hash of the filesystem... In my > first-hand experience managing ~7 PB of XFS storage and growing, I have > NEVER found xfs_repair (yes, even the "newest version") to ever do anything > positive. It's basically a data scrambler. > > At this point, you will never achieve anything near what I'd consider a > production-grade, trustworthy data repository. Any further runs of > xfs_repair will either do nothing, or make the situation worse. Fortunately > you followed best practice and kept backups so you don't really need > xfs_repair anyway, right? > > Best, > > Sean > > P.S. No backups? Still don't even think about running xfs_repair. > ESPECIALLY don't think about running xfs_repair. Try mounting ro; if that > doesn't work, mount ro with noreplaylog and scavenge what you can. Write > off the rest. That's the cost of doing business without backups. Running > xfs_repair (especially as a first-line step) will only make it worse, and > especially on big filesystems, the run time can extend to weeks... Don't > keep your users down any longer than you need to, running a program that > won't really help you. Just scavenge it, reformat and turn it back around. > > > > > > On Tue, Sep 9, 2014 at 11:21 AM, Leslie Rhorer > wrote: > >> >> Hello, >> >> I have an issue with my primary RAID array. I have 13T of data >> on the array, and I suffered a major array failure. I was able to rebuild >> the array, but some data was lost. Of course I have backups, so after >> running xfs_repair, I ran an rsync job to recover the lost data. Most of >> it was recovered, but there are several files that cannot be read, deleted, >> or overwritten. I have tried running xfs_repair several times, but any >> attempt to access these files continuously reports "cannot stat XXXXXXXX: >> Structure needs cleaning". I don't need to try to recover the data >> directly, as it does reside on the backup, but I need to clear the file >> structure so I can write the files back to the filesystem. How do I >> proceed? >> >> _______________________________________________ >> xfs mailing list >> xfs@oss.sgi.com >> http://oss.sgi.com/mailman/listinfo/xfs >> > > --089e0149c46e2367870502a41522 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
OK, let me retract just a tiny fraction of what I said ori= ginally; thinking about it further, there was _one_ time I was able to use = xfs_repair to successfully recover a "lightly bruised" XFS and re= turn it to service. But in that case, the fault was very minor and I always= check first with:

xfs_repair [-L] -n -v <filesystem&= gt;

and give the output a good looking over before= proceeding further.

If it won't run without z= eroing the log, you can take that as a sign that things are getting dire.. = I wouldn't bother to run xfs_repair "for real" if the trial o= utput looked even slightly non-trivial, in cases of underlying array failur= e or massive filesystem corruption, and I'd never run it without mounti= ng and scavenging first (unless I had a very recent full backup). Barring r= are cases, xfs_repair is bad juju.

Best,

Sean






On Tue, Sep 9, 2014 at 11:50 AM, Sean Caron <scaron@umich.= edu> wrote:
Hi Leslie,

If you have a full backup, I would STRONGLY= recommend just wiping your old filesystem and restoring your backups on to= p of a totally fresh XFS, rather than repairing the original filesystem and= then filling in the blanks with backups using a file-diff tool like rsync.=

You will probably hear various opinions here abou= t xfs_repair; my personal opinion is that xfs_repair is a program made avai= lable for the unwary to further scramble their data and make a hash of the = filesystem... In my first-hand experience managing ~7 PB of XFS storage and= growing, I have NEVER found xfs_repair (yes, even the "newest version= ") to ever do anything positive. It's basically a data scrambler.<= /div>

At this point, you will never achieve anything nea= r what I'd consider a production-grade, trustworthy data repository. An= y further runs of xfs_repair will either do nothing, or make the situation = worse. Fortunately you followed best practice and kept backups so you don&#= 39;t really need xfs_repair anyway, right?

Best,

Sean

P.S. No backups? Stil= l don't even think about running xfs_repair. ESPECIALLY don't think= about running xfs_repair. Try mounting ro; if that doesn't work, mount= ro with noreplaylog and scavenge what you can. Write off the rest. That= 9;s the cost of doing business without backups. Running xfs_repair (especia= lly as a first-line step) will only make it worse, and especially on big fi= lesystems, the run time can extend to weeks... Don't keep your users do= wn any longer than you need to, running a program that won't really hel= p you. Just scavenge it, reformat and turn it back around.





On Tue, Sep 9, 2014 at 11:21 AM, Leslie Rhorer <lrhorer@mygrande.net= > wrote:

Hello,

=C2=A0 =C2=A0 =C2=A0 =C2=A0 I have an issue with my primary RAID array.=C2= =A0 I have 13T of data on the array, and I suffered a major array failure.= =C2=A0 I was able to rebuild the array, but some data was lost.=C2=A0 Of co= urse I have backups, so after running xfs_repair, I ran an rsync job to rec= over the lost data.=C2=A0 Most of it was recovered, but there are several f= iles that cannot be read, deleted, or overwritten.=C2=A0 I have tried runni= ng xfs_repair several times, but any attempt to access these files continuo= usly reports "cannot stat XXXXXXXX: Structure needs cleaning".=C2= =A0 I don't need to try to recover the data directly, as it does reside= on the backup, but I need to clear the file structure so I can write the f= iles back to the filesystem.=C2=A0 How do I proceed?

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


--089e0149c46e2367870502a41522-- From eflorac@intellique.com Tue Sep 9 11:08:03 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 9F8EF7F3F for ; Tue, 9 Sep 2014 11:08:03 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 2A793AC006 for ; Tue, 9 Sep 2014 09:08:03 -0700 (PDT) X-ASG-Debug-ID: 1410278881-04cb6c54ff8f4490001-NocioJ Received: from mail1.g1.pair.com (mail1.g1.pair.com [66.39.3.162]) by cuda.sgi.com with ESMTP id 9IlGkmcz2bS5bPsq (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 09 Sep 2014 09:08:01 -0700 (PDT) X-Barracuda-Envelope-From: eflorac@intellique.com X-Barracuda-Apparent-Source-IP: 66.39.3.162 Received: from localhost (localhost [127.0.0.1]) by mail1.g1.pair.com (Postfix) with SMTP id 04B4D2CA9B; Tue, 9 Sep 2014 12:08:01 -0400 (EDT) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) by mail1.g1.pair.com (Postfix) with ESMTPSA id BE6FF2C759; Tue, 9 Sep 2014 12:07:59 -0400 (EDT) Date: Tue, 9 Sep 2014 18:08:04 +0200 From: Emmanuel Florac To: Leslie Rhorer Cc: xfs@oss.sgi.com Subject: Re: Corrupted files Message-ID: <20140909180804.5cd65fe4@harpe.intellique.com> X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: <540F1B01.3020700@mygrande.net> References: <540F1B01.3020700@mygrande.net> Organization: Intellique X-Mailer: Claws Mail 3.10.0 (GTK+ 2.24.20; i486-slackware-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail1.g1.pair.com[66.39.3.162] X-Barracuda-Start-Time: 1410278881 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9311 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Le Tue, 09 Sep 2014 10:21:37 -0500 Leslie Rhorer =C3=A9crivait: > I have tried running xfs_repair several times,=20 > but any attempt to access these files continuously reports "cannot > stat XXXXXXXX: Structure needs cleaning".=20 I won't agree with Sean here(1). Most of the time xfs_repair ends with the expected result; however many distros (particularly centOS) provide positively ancient versions. You'd better grab a recent version (3.1 or better). (1) in particular on the "run for weeks" part. I've never had xfs_repair take more than a couple of hours, even on badly damaged filesystems in the hundred of terabytes range. --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From david@fromorbit.com Tue Sep 9 17:04:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 12F6D7F51 for ; Tue, 9 Sep 2014 17:04:17 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id D91308F8033 for ; Tue, 9 Sep 2014 15:04:13 -0700 (PDT) X-ASG-Debug-ID: 1410300249-04bdf0109a8cb8d0001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id Ijq8iyavoCHuZLlp for ; Tue, 09 Sep 2014 15:04:10 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AmM/AC14D1R5LKYhPGdsb2JhbABPCoMNgSqCLK5mBppvhWkCAgEBAYEMFwUBAQEBODeEAwEBBAEnExwjBQsIAw4HAwklDwUlAwcaExuIHwe9SQEXGIVkiHVcB4RMBY8siQGERYwojHorL4JPAQEB Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail05.adl6.internode.on.net with ESMTP; 10 Sep 2014 07:34:01 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XRTW4-0006UE-1b; Wed, 10 Sep 2014 08:04:00 +1000 Date: Wed, 10 Sep 2014 08:04:00 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH] xfs: xlog_cil_force_lsn doesn't always wait correctly Message-ID: <20140909220359.GG20518@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs: xlog_cil_force_lsn doesn't always wait correctly References: <1410226995-15714-1-git-send-email-david@fromorbit.com> <20140909134458.GA35182@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140909134458.GA35182@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1410300249 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9322 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Sep 09, 2014 at 09:44:58AM -0400, Brian Foster wrote: > On Tue, Sep 09, 2014 at 11:43:15AM +1000, Dave Chinner wrote: > > From: Dave Chinner > > > > When running a tight mount/unmount loop on an older kernel, RedHat > > QE found that unmount would occasionally hang in > > xfs_buf_unpin_wait() on the superblock buffer. Tracing and other > > debug work by Eric Sandeen indicated that it was hanging on the > > writing of the superblock during unmount immediately after logging > > the superblock counters in a synchronous transaction. Further debug > > indicated that the synchronous transaction was not waiting for > > completion correctly, and we narrowed it down to > > xlog_cil_force_lsn() returning NULLCOMMITLSN and hence not pushing > > the transaction in the iclog buffer to disk correctly. > > > > While this unmount superblock write code is now very different in > > mainline kernels, the xlog_cil_force_lsn() code is identical, and it > > was bisected to the backport of commit f876e44 ("xfs: always do log > > forces via the workqueue"). This commit made the CIL push > > asynchronous for log forces and hence exposed a race condition that > > couldn't occur on a synchronous push. > > > > Essentially, the xlog_cil_force_lsn() relied implicitly on the fact > > that the sequence push would be complete by the time > > xlog_cil_push_now() returned, resulting in the context being pushed > > being in the committing list. When it was made asynchronous, it was > > recognised that there was a race condition in detecting whether an > > asynchronous push has started or not and code was added to handle > > it. > > > > Unfortunately, the fix was not quite right and left a race condition > > where it it would detect an empty CIL while a push was in progress > > before the context had been added to the committing list. This was > > incorrectly seen as a "nothing to do" condition and so would tell > > xfs_log_force_lsn() that there is nothing to wait for, and hence it > > would push the iclogbufs in memory. > > > > The fix is simple, but explaining the logic and the race condition > > is a lot more complex. The fix is to add the context to the > > committing list before we start emptying the CIL. This allows us to > > detect the difference between an empty "do nothing" push and a push > > that has not started by adding a discrete "emptying the CIL" state > > to avoid the transient, incorrect "empty" condition that the > > (unchanged) waiting code was seeing. > > > > Signed-off-by: Dave Chinner > > Tested-by: Eric Sandeen > > --- > > The pusher side queues the work, acquires xc_push_lock, walks the > committing list and then does this: > > if (sequence == cil->xc_current_sequence && > !list_empty(&cil->xc_cil)) { > spin_unlock(&cil->xc_push_lock); > goto restart; > } > > ... which is effectively peeking into the cil state to see if the push > actually needed to do anything. The purpose is to identify the case > where the push hasn't occurred and the previous committing list > traversal was insufficient. > > The "pushee" side drains the cil, updates the current sequence and adds > the ctx to the committing list. The time between the cil drain and > list_add() creates a window where, according to the logic above, the cil > push looks like it wasn't going to do anything from the pusher > perspective. The latter two bits occur under xc_push_lock (spinlock), so > perhaps that widens a window to make this slightly more reproducible. > > The pushee work is all done under xc_ctx_lock, so generally this is an > issue because the pusher doesn't acquire xc_ctx_lock, and thus the cil > drain and ctx update are not seen as atomic. I presume this is lockless > by design, so taking the lock is not a desired solution. > > Therefore, the order of changes to data structures that the pusher peeks > into is updated on the pushee side to add to the committing list, drain > the cil and update the current sequence number. > > For the pusher side, this means the committing list walk and logic above > (all under xc_push_lock) either sees the ctx on the list or not. If the > ctx is on the list, then we waited for it and there is no race. If the > ctx is not on the list, it is either populated and waiting to be added > to the list (e.g., we hold xc_push_lock) or empty and there's nothing to > do (regardless of whether the pusher side has run or not). > > That seems sound to me. It would be nice of we could somehow make this > explicitly more simple rather than dependent on complex ordering (e.g., > a push completion or something of that sort), but that's for another > time. One nit below... Yeah, it's complex and order dependent. I think I broke Eric trying to explain it to him when debugging it. ;) But the complexity is a side effect of the push lock being a critically hot lock and so anything we can do to avoid needing to hold it for longer or take it more often is worth the complexity. If you can think of a way that is simpler and doesn't introduce new contention points between pushers, forces and commits then I'm all ears ;) .... > Looks like out_skip could unlock xc_push_lock now. Probably can be, but I'll leave it as is right now. > Reviewed-by: Brian Foster Thanks! -Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Tue Sep 9 17:06:53 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7C0BD7F51 for ; Tue, 9 Sep 2014 17:06:53 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 59ECB8F8050 for ; Tue, 9 Sep 2014 15:06:53 -0700 (PDT) X-ASG-Debug-ID: 1410300407-04bdf010978cbda0001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id T7o6TtrQuPCrZplm for ; Tue, 09 Sep 2014 15:06:48 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjMxAFp5D1R5LKYhPGdsb2JhbAA/GoMNU1eCLIstozkGmRSBW4VpBAIBgQwXBQEBAQE4N4QEAQU6HCMQCAMOCgklDwUlAwcaE4hBDja9BAEXGIVkiGZrB4RMBZVxhwGZIisvAYJOAQEB Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail05.adl6.internode.on.net with ESMTP; 10 Sep 2014 07:36:46 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XRTYj-0006UW-F8; Wed, 10 Sep 2014 08:06:45 +1000 Date: Wed, 10 Sep 2014 08:06:45 +1000 From: Dave Chinner To: Leslie Rhorer Cc: xfs@oss.sgi.com Subject: Re: Corrupted files Message-ID: <20140909220645.GH20518@dastard> X-ASG-Orig-Subj: Re: Corrupted files References: <540F1B01.3020700@mygrande.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <540F1B01.3020700@mygrande.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1410300407 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9322 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 On Tue, Sep 09, 2014 at 10:21:37AM -0500, Leslie Rhorer wrote: > > Hello, > > I have an issue with my primary RAID array. I have 13T of data on > the array, and I suffered a major array failure. I was able to > rebuild the array, but some data was lost. Of course I have > backups, so after running xfs_repair, I ran an rsync job to recover > the lost data. Most of it was recovered, but there are several > files that cannot be read, deleted, or overwritten. I have tried > running xfs_repair several times, but any attempt to access these > files continuously reports "cannot stat XXXXXXXX: Structure needs > cleaning". I don't need to try to recover the data directly, as it > does reside on the backup, but I need to clear the file structure so > I can write the files back to the filesystem. How do I proceed? Fristly, more infomration is required, namely versions and actual error messages: http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F dmesg, in particular, should tell use what the corruption being encountered is when stat fails. Cheers, Dave. -- Dave Chinner david@fromorbit.com From sandeen@sandeen.net Tue Sep 9 17:24:55 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 27EE17F52 for ; Tue, 9 Sep 2014 17:24:55 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id D8A858F8050 for ; Tue, 9 Sep 2014 15:24:54 -0700 (PDT) X-ASG-Debug-ID: 1410301492-04bdf010a18cf8b0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id Fl7GSJZW8Ud95wo3 for ; Tue, 09 Sep 2014 15:24:52 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 558A2637142F; Tue, 9 Sep 2014 17:24:52 -0500 (CDT) Message-ID: <540F7E37.7020500@sandeen.net> Date: Tue, 09 Sep 2014 17:24:55 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Sean Caron , Leslie Rhorer CC: "xfs@oss.sgi.com" Subject: Re: Corrupted files References: <540F1B01.3020700@mygrande.net> X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410301492 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9324 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/9/14 11:03 AM, Sean Caron wrote: >Barring rare cases, xfs_repair is bad juju. No, it's not. It is the appropriate tool to use for filesystem repair. But it is not the appropriate tool for recovery from mangled storage. I've actually been running a filesystem fuzzer over xfs images, randomly corrupting data and testing repair, 1000s of times over. It does remarkably well. If you scramble your raid, which means your block device is no longer an xfs filesystem, but is instead a random tangle of bits and pieces of other things, of course xfs_repair won't do well, but it's not the right tool for the job at that stage. -Eric From BATV+3dc40a38233d374cc22f+4034+infradead.org+hch@bombadil.srs.infradead.org Tue Sep 9 17:29:00 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 1F30F7F55 for ; Tue, 9 Sep 2014 17:29:00 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id E25C78F8049 for ; Tue, 9 Sep 2014 15:28:59 -0700 (PDT) X-ASG-Debug-ID: 1410301737-04bdf0109a8d0210001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id Ei01gzYMXHvkDek2 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 09 Sep 2014 15:28:57 -0700 (PDT) X-Barracuda-Envelope-From: BATV+3dc40a38233d374cc22f+4034+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XRTuD-000791-0g; Tue, 09 Sep 2014 22:28:57 +0000 Date: Tue, 9 Sep 2014 15:28:56 -0700 From: Christoph Hellwig To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/5] xfs_repair: clear bad flgs in process_dinode_int Message-ID: <20140909222856.GA27349@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 1/5] xfs_repair: clear bad flgs in process_dinode_int References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> <1410108065-18156-2-git-send-email-sandeen@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1410108065-18156-2-git-send-email-sandeen@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1410301737 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9324 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sun, Sep 07, 2014 at 11:41:01AM -0500, Eric Sandeen wrote: > process_dinode_int() reports bad flags if > dino->di_flags & ~XFS_DIFLAG_ANY - i.e. if > any flags are set outside the known set. But > then instead of clearing them, it does > flags &= ~XFS_DIFLAG_ANY which keeps *only* > the bad flags. This leads to persistent, > unrepairable errors of the form: You know you can use up to 75 characters per line for your commit messages, don't you? :) Otherwise looks good, Reviewed-by: Christoph Hellwig From BATV+3dc40a38233d374cc22f+4034+infradead.org+hch@bombadil.srs.infradead.org Tue Sep 9 17:29:58 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id A58487F57 for ; Tue, 9 Sep 2014 17:29:58 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 93F17304032 for ; Tue, 9 Sep 2014 15:29:55 -0700 (PDT) X-ASG-Debug-ID: 1410301794-04cbb05488be3850001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id 0vFOSuAmbNYwFtyM (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 09 Sep 2014 15:29:54 -0700 (PDT) X-Barracuda-Envelope-From: BATV+3dc40a38233d374cc22f+4034+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XRTv8-0007Qo-0U; Tue, 09 Sep 2014 22:29:54 +0000 Date: Tue, 9 Sep 2014 15:29:53 -0700 From: Christoph Hellwig To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/5] xfs_repair: preserve error state in process_shortform_attr Message-ID: <20140909222953.GB27349@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 2/5] xfs_repair: preserve error state in process_shortform_attr References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> <1410108065-18156-3-git-send-email-sandeen@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1410108065-18156-3-git-send-email-sandeen@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1410301794 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9324 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Sun, Sep 07, 2014 at 11:41:02AM -0500, Eric Sandeen wrote: > process_shortform_attr uses the "junkit" error to > track whether an error was found, but by assigning > it directly to the result of valuecheck, previous > errors are ignored, leading to unrepairable errors > of the form i.e. > > "entry has INCOMPLETE flag on in shortform attribute" > or > "entry contains illegal character in shortform attribute name" > > Signed-off-by: Eric Sandeen Looks good, Reviewed-by: Christoph Hellwig From sandeen@sandeen.net Tue Sep 9 17:33:28 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 576E57F57 for ; Tue, 9 Sep 2014 17:33:28 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 438638F8052 for ; Tue, 9 Sep 2014 15:33:28 -0700 (PDT) X-ASG-Debug-ID: 1410302007-04cbb05488be5980001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id oBNv9QD5nDH3PmIk for ; Tue, 09 Sep 2014 15:33:27 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 1ECE5637142F; Tue, 9 Sep 2014 17:33:27 -0500 (CDT) Message-ID: <540F803A.9060901@sandeen.net> Date: Tue, 09 Sep 2014 17:33:30 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Christoph Hellwig , Eric Sandeen CC: xfs@oss.sgi.com Subject: Re: [PATCH 1/5] xfs_repair: clear bad flgs in process_dinode_int References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> <1410108065-18156-2-git-send-email-sandeen@redhat.com> <20140909222856.GA27349@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 1/5] xfs_repair: clear bad flgs in process_dinode_int In-Reply-To: <20140909222856.GA27349@infradead.org> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410302007 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9324 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/9/14 5:28 PM, Christoph Hellwig wrote: > On Sun, Sep 07, 2014 at 11:41:01AM -0500, Eric Sandeen wrote: >> process_dinode_int() reports bad flags if >> dino->di_flags & ~XFS_DIFLAG_ANY - i.e. if >> any flags are set outside the known set. But >> then instead of clearing them, it does >> flags &= ~XFS_DIFLAG_ANY which keeps *only* >> the bad flags. This leads to persistent, >> unrepairable errors of the form: > > You know you can use up to 75 characters per line for your commit messages, > don't you? :) hah, it's not automated at all, I guess my visual perception of the window is shrinking. Dave, feel free to fix on commit if inclined :) -Eric From scaron@umich.edu Tue Sep 9 17:57:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id C98AB7F57 for ; Tue, 9 Sep 2014 17:57:12 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 7585EAC003 for ; Tue, 9 Sep 2014 15:57:09 -0700 (PDT) X-ASG-Debug-ID: 1410303427-04bdf0109a8d5470001-NocioJ Received: from mail-qc0-f182.google.com (mail-qc0-f182.google.com [209.85.216.182]) by cuda.sgi.com with ESMTP id IbT8KSxm9sOCjWX1 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Tue, 09 Sep 2014 15:57:07 -0700 (PDT) X-Barracuda-Envelope-From: scaron@umich.edu X-Barracuda-Apparent-Source-IP: 209.85.216.182 Received: by mail-qc0-f182.google.com with SMTP id x13so5209900qcv.13 for ; Tue, 09 Sep 2014 15:57:07 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=v+R2e8KHgNCMwweTWaaJ8TbutjxBz7LS8Qsi7QRIqig=; b=dlzVBt2IISFU8+3XRpFrGwE182yqNXnsl4MpT2oON3fFU82o0Tkau9pDIWOwOSn20J Tg7bNIItqkQiLGb/NcxRLByCk++xbJmFOlS3w/4Nl0e8pTh9qsEwXJFNdMW89fDLZDNw SHmYjEpI8Cz7mp+6NQsXb6SEvNSk3t7oOkeTmqV6keMp0Lm+hdjGmU/75dmPCByjRhSS jB2Je5WDOAk++7TMDJ5KTqgS5Y7ke18+arQozOM4tXdGhhwznr2+eipbTfkeUsXGGUgk JQsg8sVKFIMwZuJz/AMTUjA5bBh7gBqKDGx4bwshsYeP5h4Lo8z5JlOpYBWeAjWfRqbV +Bug== X-Gm-Message-State: ALoCoQlx0TRbTJXlwRp9DQZcGoglqYLtCFU2qHQlP4VC47YaEx75AwpjqTJst0vyygOzu9vf5PVf MIME-Version: 1.0 X-Received: by 10.224.167.72 with SMTP id p8mr56271486qay.62.1410303426933; Tue, 09 Sep 2014 15:57:06 -0700 (PDT) Received: by 10.224.8.132 with HTTP; Tue, 9 Sep 2014 15:57:06 -0700 (PDT) In-Reply-To: <540F7E37.7020500@sandeen.net> References: <540F1B01.3020700@mygrande.net> <540F7E37.7020500@sandeen.net> Date: Tue, 9 Sep 2014 18:57:06 -0400 Message-ID: Subject: Re: Corrupted files From: Sean Caron X-ASG-Orig-Subj: Re: Corrupted files To: Eric Sandeen , Sean Caron Cc: Leslie Rhorer , "xfs@oss.sgi.com" Content-Type: multipart/alternative; boundary=089e0149c46ec9caa80502a9da0e X-Barracuda-Connect: mail-qc0-f182.google.com[209.85.216.182] X-Barracuda-Start-Time: 1410303427 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9325 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message --089e0149c46ec9caa80502a9da0e Content-Type: text/plain; charset=UTF-8 Hey, just sharing some hard-won (believe me) professional experience. I have seen xfs_repair take a bad situation and make it worse many times. I don't know that a filesystem fuzzer or any other simulation can ever provide true simulation of users absolutely pounding the tar out of a system. There seems to be a real disconnect between what developers are able to test and observe directly, and what happens in the production environment in a very high-throughput environment. Best, Sean On Tue, Sep 9, 2014 at 6:24 PM, Eric Sandeen wrote: > On 9/9/14 11:03 AM, Sean Caron wrote: > > Barring rare cases, xfs_repair is bad juju. >> > > No, it's not. It is the appropriate tool to use for filesystem repair. > > But it is not the appropriate tool for recovery from mangled storage. > > I've actually been running a filesystem fuzzer over xfs images, randomly > corrupting data and testing repair, 1000s of times over. It does > remarkably well. > > If you scramble your raid, which means your block device is no longer > an xfs filesystem, but is instead a random tangle of bits and pieces of > other things, of course xfs_repair won't do well, but it's not the right > tool for the job at that stage. > > -Eric > --089e0149c46ec9caa80502a9da0e Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hey, just sharing some hard-won (believe me) professional = experience. I have seen xfs_repair take a bad situation and make it worse m= any times. I don't know that a filesystem fuzzer or any other simulatio= n can ever provide true simulation of users absolutely pounding the tar out= of a system. There seems to be a real disconnect between what developers a= re able to test and observe directly, and what happens in the production en= vironment in a very high-throughput environment.

Be= st,

Sean


On Tue, Sep 9, 2014 at 6:2= 4 PM, Eric Sandeen <sandeen@sandeen.net> wrote:
On 9/9/14 11:03 AM, Sean Caron wro= te:

Barring rare cases, xfs_repair is bad juju.

 No, it's not.=C2=A0 It is the appropriate tool to use for filesystem re= pair.

But it is not the appropriate tool for recovery from mangled storage.

I've actually been running a filesystem fuzzer over xfs images, randoml= y
corrupting data and testing repair, 1000s of times over.=C2=A0 It does
remarkably well.

If you scramble your raid, which means your block device is no longer
an xfs filesystem, but is instead a random tangle of bits and pieces of
other things, of course xfs_repair won't do well, but it's not the = right
tool for the job at that stage.

-Eric

--089e0149c46ec9caa80502a9da0e-- From david@fromorbit.com Tue Sep 9 18:48:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id DE2B47F61 for ; Tue, 9 Sep 2014 18:48:22 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id BDF17304048 for ; Tue, 9 Sep 2014 16:48:19 -0700 (PDT) X-ASG-Debug-ID: 1410306497-04bdf0109a8ddda0001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id duQh2DAxXFWfwFQS for ; Tue, 09 Sep 2014 16:48:17 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtYlAOWQD1R5LKYhPGdsb2JhbABZgw2BKoIsrmwGmm+FaQQCAYEGFwUBAQEBODeEBAEFJxMcIxAIAxgJJQ8FJQMHGhOIQb04ARcYhWSIbxEBUAeETAEEnHKMKIx6Ky+BD4FAAQEB Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail05.adl6.internode.on.net with ESMTP; 10 Sep 2014 09:18:16 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XRV8x-0006jG-VR; Wed, 10 Sep 2014 09:48:16 +1000 Date: Wed, 10 Sep 2014 09:48:15 +1000 From: Dave Chinner To: Eric Sandeen Cc: Christoph Hellwig , Eric Sandeen , xfs@oss.sgi.com Subject: Re: [PATCH 1/5] xfs_repair: clear bad flgs in process_dinode_int Message-ID: <20140909234815.GX30012@dastard> X-ASG-Orig-Subj: Re: [PATCH 1/5] xfs_repair: clear bad flgs in process_dinode_int References: <1410108065-18156-1-git-send-email-sandeen@redhat.com> <1410108065-18156-2-git-send-email-sandeen@redhat.com> <20140909222856.GA27349@infradead.org> <540F803A.9060901@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <540F803A.9060901@sandeen.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1410306497 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9326 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Sep 09, 2014 at 05:33:30PM -0500, Eric Sandeen wrote: > On 9/9/14 5:28 PM, Christoph Hellwig wrote: > >On Sun, Sep 07, 2014 at 11:41:01AM -0500, Eric Sandeen wrote: > >>process_dinode_int() reports bad flags if > >>dino->di_flags & ~XFS_DIFLAG_ANY - i.e. if > >>any flags are set outside the known set. But > >>then instead of clearing them, it does > >>flags &= ~XFS_DIFLAG_ANY which keeps *only* > >>the bad flags. This leads to persistent, > >>unrepairable errors of the form: > > > >You know you can use up to 75 characters per line for your commit messages, > >don't you? :) > > hah, it's not automated at all, I guess my visual perception > of the window is shrinking. Dave, feel free to fix on commit if > inclined :) I mostly do already - I tend to reflow commit messages to 68 characters (same width I use for email) when I see something like this. Cheers, Dave. -- Dave Chinner david@fromorbit.com From dgc@oss.sgi.com Tue Sep 9 19:00:04 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=NO_RELAYS autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: by oss.sgi.com (Postfix, from userid 10266) id 544657F66; Tue, 9 Sep 2014 19:00:04 -0500 (CDT) From: xfs@oss.sgi.com To: xfs@oss.sgi.com Subject: [XFS updates] XFS development tree branch, xfs-misc-fixes-for-3.18-1, created. v3.16-11807-gab6978c X-Git-Refname: refs/heads/xfs-misc-fixes-for-3.18-1 X-Git-Reftype: branch X-Git-Oldrev: 0000000000000000000000000000000000000000 X-Git-Newrev: ab6978c295b074eb2ba4b06fdf206c7ab4f293e5 Message-Id: <20140910000004.544657F66@oss.sgi.com> Date: Tue, 9 Sep 2014 19:00:03 -0500 (CDT) 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, xfs-misc-fixes-for-3.18-1 has been created at ab6978c295b074eb2ba4b06fdf206c7ab4f293e5 (commit) - Log ----------------------------------------------------------------- commit ab6978c295b074eb2ba4b06fdf206c7ab4f293e5 Author: Eric Sandeen Date: Tue Sep 9 11:59:12 2014 +1000 xfs: remove rbpp check from xfs_rtmodify_summary_int rbpp is always passed into xfs_rtmodify_summary and xfs_rtget_summary, so there is no need to test for it in xfs_rtmodify_summary_int. Signed-off-by: Eric Sandeen Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner commit afabfd30d05264ff493c24bce310b6a5350f099b Author: Eric Sandeen Date: Tue Sep 9 11:58:42 2014 +1000 xfs: combine xfs_rtmodify_summary and xfs_rtget_summary xfs_rtmodify_summary and xfs_rtget_summary are almost identical; fold them into xfs_rtmodify_summary_int(), with wrappers for each of the original calls. The _int function modifies if a delta is passed, and returns a summary pointer if *sum is passed. Signed-off-by: Eric Sandeen Reviewed-by: Brian Foster Signed-off-by: Dave Chinner commit b16ed7c114b8cca45fa87b675c431f43ff90c179 Author: Eric Sandeen Date: Tue Sep 9 11:58:07 2014 +1000 xfs: combine xfs_dir_canenter into xfs_dir_createname xfs_dir_canenter and xfs_dir_createname are almost identical. Fold the former into the latter, with a helpful wrapper for the former. If createname is called without an inode number, it now only checks for space, and does not actually add the entry. Signed-off-by: Eric Sandeen Reviewed-by: Brian Foster Signed-off-by: Dave Chinner commit 94f3cad555d66048906deade06a764f7ea2c6e4d Author: Eric Sandeen Date: Tue Sep 9 11:57:52 2014 +1000 xfs: check resblks before calling xfs_dir_canenter Move the resblks test out of the xfs_dir_canenter, and into the caller. This makes a little more sense on the face of it; xfs_dir_canenter immediately returns if resblks !=0; and given some of the comments preceding the calls: * Check for ability to enter directory entry, if no space reserved. even more so. It also facilitates the next patch. Signed-off-by: Eric Sandeen Reviewed-by: Christoph Hellwig Reviewed-by: Brian Foster Signed-off-by: Dave Chinner commit 970fd3f04d5949a4b5f6d0a5fea8e4b6797a5992 Author: Eric Sandeen Date: Tue Sep 9 11:57:29 2014 +1000 xfs: deduplicate xlog_do_recovery_pass() In xlog_do_recovery_pass(), there are 2 distinct cases: non-wrapped and wrapped log recovery. If we find a wrapped log, we recover around the end of the log, and then handle the rest of recovery exactly as in the non-wrapped case - using exactly the same (duplicated) code. Rather than having the same code in both cases, we can get the wrapped portion out of the way first if needed, and then recover the non-wrapped portion of the log. There should be no functional change here, just code reorganization & deduplication. The patch looks a bit bigger than it really is; the last hunk is whitespace changes (un-indenting). Tested with xfstests "check -g log" on a stock configuration. Signed-off-by: Eric Sandeen Reviewed-by: Brian Foster Signed-off-by: Dave Chinner commit 59f9c004320704179913fa7c57645017ccf1b5c3 Author: Eric Sandeen Date: Tue Sep 9 11:57:10 2014 +1000 xfs: lseek: the "whence" argument is called "whence" For some reason, the older commit: 965c8e5 lseek: the "whence" argument is called "whence" lseek: the "whence" argument is called "whence" But the kernel decided to call it "origin" instead. Fix most of the sites. left out xfs. So fix xfs. Signed-off-by: Eric Sandeen Reviewed-by: Brian Foster Reviewed-by: Jie Liu Signed-off-by: Dave Chinner commit 49c69591c80648c14ff87525e97ee6ebe3a343cb Author: Eric Sandeen Date: Tue Sep 9 11:56:48 2014 +1000 xfs: combine xfs_seek_hole & xfs_seek_data xfs_seek_hole & xfs_seek_data are remarkably similar; so much so that they can be combined, saving a fair bit of semi-complex code duplication. The following patch passes generic/285 and generic/286, which specifically test seek behavior. Signed-off-by: Eric Sandeen Reviewed-by: Brian Foster Reviewed-by: Jie Liu Signed-off-by: Dave Chinner commit 2e2271787419a12496bf5da5c3028a9c73c9697f Author: Brian Foster Date: Tue Sep 9 11:56:13 2014 +1000 xfs: export log_recovery_delay to delay mount time log recovery XFS log recovery has been discovered to have race conditions with buffers when I/O errors occur. External tools are available to simulate I/O errors to XFS, but this alone is not sufficient for testing log recovery. XFS unconditionally resets the inactive region of the log prior to log recovery to avoid confusion over processing any partially written log records that might have been written before an unclean shutdown. Therefore, unconditional write I/O failures at mount time are caught by the reset sequence rather than log recovery and hinder the ability to test the latter. The device-mapper dm-flakey module uses an up/down timer to define a cycle for when to fail I/Os. Create a pre log recovery delay tunable that can be used to coordinate XFS log recovery with I/O errors simulated by dm-flakey. This facilitates coordination in userspace that allows the reset of stale log blocks to succeed and writes due to log recovery to fail. For example, define a dm-flakey instance with an uptime long enough to allow log reset to succeed and a log recovery delay long enough to allow the dm-flakey uptime to expire. The 'log_recovery_delay' sysfs tunable is exported under /sys/fs/xfs/debug and is only enabled for kernels compiled in XFS debug mode. The value is exported in units of seconds and allows for a delay of up to 60 seconds. Note that this is for XFS debug and test instrumentation purposes only and should not be used by applications. No delay is enabled by default. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner commit 65b65735fede29b516fed1d8c2391e8bc373b805 Author: Brian Foster Date: Tue Sep 9 11:52:42 2014 +1000 xfs: add debug sysfs attribute set Create a top-level debug directory for global debug sysfs attributes. This directory is added and removed on XFS module initialization and removal respectively for DEBUG mode kernels only. It typically resides at /sys/fs/xfs/debug. It is located at the top level of the xfs sysfs hierarchy as attributes might define global behavior or behavior that must be configured before an xfs mount is available (e.g., log recovery behavior). Define the global debug kobject that represents the debug sysfs directory and add generic attribute show/store helpers to support future attributes. No debug attributes are exported as of yet. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner commit e1b05723ed834090caab56866adc05bce31c9bdd Author: Eric Sandeen Date: Tue Sep 9 11:47:24 2014 +1000 xfs: add a few more verifier tests These were exposed by fsfuzzer runs; without them we fail in various exciting and sometimes convoluted ways when we encounter disk corruption. Without the MAXLEVELS tests we tend to walk off the end of an array in a loop like this: for (i = 0; i < cur->bc_nlevels; i++) { if (cur->bc_bufs[i]) Without the dirblklog test we try to allocate more memory than we could possibly hope for and loop forever: xfs_dabuf_map() nfsb = mp->m_dir_geo->fsbcount; irecs = kmem_zalloc(sizeof(irec) * nfsb, KM_SLEEP... As for the logbsize check, that's the convoluted one. If logbsize is specified at mount time, it's sanitized in xfs_parseargs; in particular it makes sure that it's not > XLOG_MAX_RECORD_BSIZE. If not specified at mount time, it comes from the superblock via sb_logsunit; this is limited to 256k at mkfs time as well; it's copied into m_logbsize in xfs_finish_flags(). However, if for some reason the on-disk value is corrupt and too large, nothing catches it. It's a circuitous path, but that size eventually finds its way to places that make the kernel very unhappy, leading to oopses in xlog_pack_data() because we use the size as an index into iclog->ic_data, but the array is not necessarily that big. Anyway - bounds checking when we read from disk is a good thing! Signed-off-by: Eric Sandeen Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner commit 8018ec083c72443cc74fd2d08eb7c5dddc13af53 Author: Brian Foster Date: Tue Sep 9 11:44:46 2014 +1000 xfs: mark all internal workqueues as freezable Workqueues must be explicitly set as freezable to ensure they are frozen in the assocated part of the hibernation/suspend sequence. Freezing of workqueues and kernel threads is important to ensure that modifications are not made on-disk after the hibernation image has been created. Otherwise, the in-memory state can become inconsistent with what is on disk and eventually lead to filesystem corruption. We have reports of free space btree corruptions that occur immediately after restore from hibernate that suggest the xfs-eofblocks workqueue could be causing such problems if it races with hibernation. Mark all of the internal XFS workqueues as freezable to ensure nothing changes on-disk once the freezer infrastructure freezes kernel threads and creates the hibernation image. Signed-off-by: Brian Foster Reported-by: Carlos E. R. Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner ----------------------------------------------------------------------- hooks/post-receive -- XFS development tree From dgc@oss.sgi.com Tue Sep 9 19:00:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=NO_RELAYS autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: by oss.sgi.com (Postfix, from userid 10266) id BA0737F6B; Tue, 9 Sep 2014 19:00:21 -0500 (CDT) From: xfs@oss.sgi.com To: xfs@oss.sgi.com Subject: [XFS updates] XFS development tree branch, for-next, updated. xfs-for-linus-3.17-rc3-12-ga4241ae X-Git-Refname: refs/heads/for-next X-Git-Reftype: branch X-Git-Oldrev: 41b9d7263ea1e270019c5d04fa0ab15db50b9725 X-Git-Newrev: a4241aebe924136d6838fd516da6daa727fcd728 Message-Id: <20140910000021.BA0737F6B@oss.sgi.com> Date: Tue, 9 Sep 2014 19:00:21 -0500 (CDT) 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-next has been updated a4241ae Merge branch 'xfs-misc-fixes-for-3.18-1' into for-next ab6978c xfs: remove rbpp check from xfs_rtmodify_summary_int afabfd3 xfs: combine xfs_rtmodify_summary and xfs_rtget_summary b16ed7c xfs: combine xfs_dir_canenter into xfs_dir_createname 94f3cad xfs: check resblks before calling xfs_dir_canenter 970fd3f xfs: deduplicate xlog_do_recovery_pass() 59f9c00 xfs: lseek: the "whence" argument is called "whence" 49c6959 xfs: combine xfs_seek_hole & xfs_seek_data 2e22717 xfs: export log_recovery_delay to delay mount time log recovery 65b6573 xfs: add debug sysfs attribute set e1b0572 xfs: add a few more verifier tests 8018ec0 xfs: mark all internal workqueues as freezable from 41b9d7263ea1e270019c5d04fa0ab15db50b9725 (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 a4241aebe924136d6838fd516da6daa727fcd728 Merge: 41b9d72 ab6978c Author: Dave Chinner Date: Tue Sep 9 13:25:31 2014 +1000 Merge branch 'xfs-misc-fixes-for-3.18-1' into for-next ----------------------------------------------------------------------- Summary of changes: fs/xfs/libxfs/xfs_alloc.c | 4 + fs/xfs/libxfs/xfs_dir2.c | 67 +++------------- fs/xfs/libxfs/xfs_dir2.h | 2 +- fs/xfs/libxfs/xfs_ialloc.c | 2 + fs/xfs/libxfs/xfs_rtbitmap.c | 49 ++++++++---- fs/xfs/libxfs/xfs_sb.c | 2 + fs/xfs/xfs_buf.c | 2 +- fs/xfs/xfs_file.c | 178 +++++++++++++------------------------------ fs/xfs/xfs_globals.c | 4 + fs/xfs/xfs_inode.c | 24 +++--- fs/xfs/xfs_log_recover.c | 93 ++++++++++------------ fs/xfs/xfs_mru_cache.c | 3 +- fs/xfs/xfs_rtalloc.c | 55 +------------ fs/xfs/xfs_rtalloc.h | 4 + fs/xfs/xfs_super.c | 38 ++++++--- fs/xfs/xfs_symlink.c | 8 +- fs/xfs/xfs_sysctl.h | 5 ++ fs/xfs/xfs_sysfs.c | 74 ++++++++++++++++++ fs/xfs/xfs_sysfs.h | 1 + 19 files changed, 290 insertions(+), 325 deletions(-) hooks/post-receive -- XFS development tree From lrhorer@mygrande.net Tue Sep 9 19:48:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8B3467F53 for ; Tue, 9 Sep 2014 19:48:51 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 79B248F804B for ; Tue, 9 Sep 2014 17:48:48 -0700 (PDT) X-ASG-Debug-ID: 1410310123-04cbb05485c0cc70001-NocioJ Received: from mail04.lsn.net (mail04.lsn.net [66.90.130.138]) by cuda.sgi.com with ESMTP id Nc165FHZIFheKILV for ; Tue, 09 Sep 2014 17:48:44 -0700 (PDT) X-Barracuda-Envelope-From: lrhorer@mygrande.net X-Barracuda-Apparent-Source-IP: 66.90.130.138 Received: from [192.168.1.121] (24-155-170-173.dyn.grandenetworks.net [24.155.170.173]) (authenticated bits=0) by mail04.lsn.net (8.14.4/8.13.6) with ESMTP id s8A0mfoK005347 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Tue, 9 Sep 2014 19:48:42 -0500 X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.98.4 at av02.lsn.net Message-ID: <540F9FE9.7070500@mygrande.net> Date: Tue, 09 Sep 2014 19:48:41 -0500 From: Leslie Rhorer User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Eric Sandeen , Sean Caron CC: "xfs@oss.sgi.com" Subject: Re: Corrupted files References: <540F1B01.3020700@mygrande.net> <540F7E37.7020500@sandeen.net> X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: <540F7E37.7020500@sandeen.net> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail04.lsn.net[66.90.130.138] X-Barracuda-Start-Time: 1410310124 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9327 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/9/2014 5:24 PM, Eric Sandeen wrote: > On 9/9/14 11:03 AM, Sean Caron wrote: > >> Barring rare cases, xfs_repair is bad juju. > > No, it's not. It is the appropriate tool to use for filesystem repair. > > But it is not the appropriate tool for recovery from mangled storage. It's not all that mangled. Out of over 52,000 files on the backup server array, only 5758 were missing from the primary array, and most of those were lost by the corruption of just a couple of directories, where every file in the directory was lost with the directory itself. Several directories and a scattering of individual files were deleted with intent prior to the failure but not yet purged from the backup. Most were small files - only 29 were larger than 1G. All of those 5758 were easily recovered. The only ones remaining at issue are 3 files which cannot be read, written or deleted. The rest have been read and checksums sucessfully computed and compared. With only 50K files in question, I am confidant any checksum collisions are of insignificant probability. Someone is going to have to do a lot of talking to convince me rsync can read two copies of what should be the same data and come up with the same checksum value for both, but other applications would be able to successfully read one of the files and not the other. I really don't think Draconian measures are required. Even if it turns out they are, the existence of the backup allows for a good deal of fiddling with the main filesystem before one is compelled to give up and start fresh. This especially since a small amount of the data on the main array had not yet been backed up to the secondary array. These e-mails, for example. The rsync job that backs up the main array runs every morning at 04:00, so files created that day were not backed up, and for safety I have changed the backup array file system to read-only, so nothing created since is backed up. > I've actually been running a filesystem fuzzer over xfs images, randomly > corrupting data and testing repair, 1000s of times over. It does > remarkably well. > > If you scramble your raid, which means your block device is no longer > an xfs filesystem, but is instead a random tangle of bits and pieces of > other things, of course xfs_repair won't do well, but it's not the right > tool for the job at that stage. This is nowhere near that stage. A few sectors here and there were lost because 3 drives were kicked from the array while write operations were underway. I had to force re-assemble the array, which lost some data. The vast majority of the data is clearly intact, including most of the file system structures. Far less than 1% of the data was lost or corrupted. From roger@filmlight.ltd.uk Tue Sep 9 20:00:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 39F4A7F4E for ; Tue, 9 Sep 2014 20:00:26 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id AE4D4AC003 for ; Tue, 9 Sep 2014 18:00:22 -0700 (PDT) X-ASG-Debug-ID: 1410310819-04cbb05488c122f0001-NocioJ Received: from b.mx.filmlight.ltd.uk (b.mx.filmlight.ltd.uk [77.107.81.251]) by cuda.sgi.com with SMTP id DmsLs4GQghQDK0CG for ; Tue, 09 Sep 2014 18:00:20 -0700 (PDT) X-Barracuda-Envelope-From: roger@filmlight.ltd.uk X-Barracuda-Apparent-Source-IP: 77.107.81.251 Received: (dqd 16199 invoked from network); 10 Sep 2014 01:00:19 -0000 Received: from cpc2-stev6-2-0-cust318.9-2.cable.virginm.net (HELO ?192.168.0.247?) (roger@213.107.89.63) by b.mx.filmlight.ltd.uk with SMTP; 10 Sep 2014 01:00:19 -0000 Content-Type: multipart/alternative; boundary="Apple-Mail=_883806B7-225F-4F7A-8C28-339A49FE81DA" Mime-Version: 1.0 (Mac OS X Mail 6.6 \(1510\)) Subject: Re: Corrupted files From: Roger Willcocks X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: Date: Wed, 10 Sep 2014 02:00:18 +0100 Cc: Roger Willcocks , Eric Sandeen , Leslie Rhorer , "xfs@oss.sgi.com" Message-Id: <62B15E94-1944-457F-B298-89EDEE3EC70D@filmlight.ltd.uk> References: <540F1B01.3020700@mygrande.net> <540F7E37.7020500@sandeen.net> To: Sean Caron X-Mailer: Apple Mail (2.1510) X-Barracuda-Connect: b.mx.filmlight.ltd.uk[77.107.81.251] X-Barracuda-Start-Time: 1410310820 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC5_SA210e, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9327 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message 0.00 BSF_SC5_SA210e Custom Rule SA210e --Apple-Mail=_883806B7-225F-4F7A-8C28-339A49FE81DA Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii I normally watch quietly from the sidelines but I think it's important = to get some balance here; our customers between them run many hundreds = of multi-terabyte arrays and when something goes badly awry it generally = falls to me to sort it out. In my experience xfs_repair does exactly = what it says on the tin. I can recall only a couple of instances where we elected to reformat and = reload from backups and they were both due to human error: somebody = deleted the wrong raid unit when doing routine maintenance, and then = tried to fix it up hemselves. In theory of course xfs_repair shouldn't be needed if the write barriers = work properly (it's a journalled filesystem), but low-level corruption = does creep in due to power failures / kernel crashes and it's this which = xfs_repair is intended to address; not massive data corruption due to = failed hardware or careless users. -- Roger On 9 Sep 2014, at 23:57, Sean Caron wrote: > Hey, just sharing some hard-won (believe me) professional experience. = I have seen xfs_repair take a bad situation and make it worse many = times. I don't know that a filesystem fuzzer or any other simulation can = ever provide true simulation of users absolutely pounding the tar out of = a system. There seems to be a real disconnect between what developers = are able to test and observe directly, and what happens in the = production environment in a very high-throughput environment. >=20 > Best, >=20 > Sean >=20 >=20 > On Tue, Sep 9, 2014 at 6:24 PM, Eric Sandeen = wrote: > On 9/9/14 11:03 AM, Sean Caron wrote: >=20 > Barring rare cases, xfs_repair is bad juju. >=20 > No, it's not. It is the appropriate tool to use for filesystem = repair. >=20 > But it is not the appropriate tool for recovery from mangled storage. >=20 > I've actually been running a filesystem fuzzer over xfs images, = randomly > corrupting data and testing repair, 1000s of times over. It does > remarkably well. >=20 > If you scramble your raid, which means your block device is no longer > an xfs filesystem, but is instead a random tangle of bits and pieces = of > other things, of course xfs_repair won't do well, but it's not the = right > tool for the job at that stage. >=20 > -Eric >=20 > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs --Apple-Mail=_883806B7-225F-4F7A-8C28-339A49FE81DA Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii scaron@umich.edu> = wrote:

Hey, just sharing some hard-won (believe = me) professional experience. I have seen xfs_repair take a bad situation = and make it worse many times. I don't know that a filesystem fuzzer or = any other simulation can ever provide true simulation of users = absolutely pounding the tar out of a system. There seems to be a real = disconnect between what developers are able to test and observe = directly, and what happens in the production environment in a very = high-throughput = environment.

Best,

Sean


On Tue, Sep 9, 2014 at 6:24 PM, Eric Sandeen <sandeen@sandeen.net> = wrote:
On = 9/9/14 11:03 AM, Sean Caron wrote:

Barring rare cases, xfs_repair is bad juju.

 No, it's not.  It is the appropriate tool to use for filesystem = repair.

But it is not the appropriate tool for recovery from mangled = storage.

I've actually been running a filesystem fuzzer over xfs images, = randomly
corrupting data and testing repair, 1000s of times over.  It = does
remarkably well.

If you scramble your raid, which means your block device is no = longer
an xfs filesystem, but is instead a random tangle of bits and pieces = of
other things, of course xfs_repair won't do well, but it's not the = right
tool for the job at that stage.

-Eric

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

= --Apple-Mail=_883806B7-225F-4F7A-8C28-339A49FE81DA-- From roger@filmlight.ltd.uk Tue Sep 9 20:10:56 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 6F1A07F4E for ; Tue, 9 Sep 2014 20:10:56 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 5D9DC8F804B for ; Tue, 9 Sep 2014 18:10:53 -0700 (PDT) X-ASG-Debug-ID: 1410311448-04cbb05486c17af0001-NocioJ Received: from b.mx.filmlight.ltd.uk (b.mx.filmlight.ltd.uk [77.107.81.251]) by cuda.sgi.com with SMTP id OCkD43DeugKAzfdg for ; Tue, 09 Sep 2014 18:10:48 -0700 (PDT) X-Barracuda-Envelope-From: roger@filmlight.ltd.uk X-Barracuda-Apparent-Source-IP: 77.107.81.251 Received: (dqd 11134 invoked from network); 10 Sep 2014 01:10:48 -0000 Received: from cpc2-stev6-2-0-cust318.9-2.cable.virginm.net (HELO ?192.168.0.247?) (roger@213.107.89.63) by b.mx.filmlight.ltd.uk with SMTP; 10 Sep 2014 01:10:48 -0000 Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 6.6 \(1510\)) Subject: Re: Corrupted files From: Roger Willcocks X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: <540F9FE9.7070500@mygrande.net> Date: Wed, 10 Sep 2014 02:10:47 +0100 Cc: Roger Willcocks , Eric Sandeen , Sean Caron , "xfs@oss.sgi.com" Content-Transfer-Encoding: quoted-printable Message-Id: <3E40936B-A1F2-424D-B0B3-54B6C7B50B13@filmlight.ltd.uk> References: <540F1B01.3020700@mygrande.net> <540F7E37.7020500@sandeen.net> <540F9FE9.7070500@mygrande.net> To: Leslie Rhorer X-Mailer: Apple Mail (2.1510) X-Barracuda-Connect: b.mx.filmlight.ltd.uk[77.107.81.251] X-Barracuda-Start-Time: 1410311448 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9327 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 On 10 Sep 2014, at 01:48, Leslie Rhorer wrote: > The only ones remaining at issue are 3 files which cannot be read, = written or deleted. The most straightforward fix would be to note down the inode numbers of = the three fies and then use xfs_db to clear the inodes; then run = xfs_repair again. See: = http://xfs.org/index.php/XFS_FAQ#Q:_How_to_get_around_a_bad_inode_repair_i= s_unable_to_clean_up but before that try running the latest (3.2.1 I think) xfs_repair. -- Roger From lrhorer@mygrande.net Tue Sep 9 20:13:48 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8D9277F50 for ; Tue, 9 Sep 2014 20:13:48 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 798C28F8054 for ; Tue, 9 Sep 2014 18:13:48 -0700 (PDT) X-ASG-Debug-ID: 1410311626-04cb6c5500941df0001-NocioJ Received: from mail02.lsn.net (mail02.lsn.net [66.90.130.128]) by cuda.sgi.com with ESMTP id SvcGQwoZg67WfuBk for ; Tue, 09 Sep 2014 18:13:46 -0700 (PDT) X-Barracuda-Envelope-From: lrhorer@mygrande.net X-Barracuda-Apparent-Source-IP: 66.90.130.128 Received: from [192.168.1.121] (24-155-170-173.dyn.grandenetworks.net [24.155.170.173]) (authenticated bits=0) by mail02.lsn.net (8.14.4/8.13.6) with ESMTP id s8A1CcZU030778 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Tue, 9 Sep 2014 20:12:39 -0500 X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.98.4 at av01.lsn.net Message-ID: <540FA586.9090308@mygrande.net> Date: Tue, 09 Sep 2014 20:12:38 -0500 From: Leslie Rhorer User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com Subject: Re: Corrupted files References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: <20140909220645.GH20518@dastard> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail02.lsn.net[66.90.130.128] X-Barracuda-Start-Time: 1410311626 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9327 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 On 9/9/2014 5:06 PM, Dave Chinner wrote: > Fristly, more infomration is required, namely versions and actual > error messages: Indubitably: RAID-Server:/# xfs_repair -V xfs_repair version 3.1.7 RAID-Server:/# uname -r 3.2.0-4-amd64 4.0 GHz FX-8350 eight core processor RAID-Server:/# cat /proc/meminfo /proc/mounts /proc/partitions MemTotal: 8099916 kB MemFree: 5786420 kB Buffers: 112684 kB Cached: 457020 kB SwapCached: 0 kB Active: 521800 kB Inactive: 457268 kB Active(anon): 276648 kB Inactive(anon): 140180 kB Active(file): 245152 kB Inactive(file): 317088 kB Unevictable: 0 kB Mlocked: 0 kB SwapTotal: 12623740 kB SwapFree: 12623740 kB Dirty: 20 kB Writeback: 0 kB AnonPages: 409488 kB Mapped: 47576 kB Shmem: 7464 kB Slab: 197100 kB SReclaimable: 112644 kB SUnreclaim: 84456 kB KernelStack: 2560 kB PageTables: 8468 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 16673696 kB Committed_AS: 1010172 kB VmallocTotal: 34359738367 kB VmallocUsed: 339140 kB VmallocChunk: 34359395308 kB HardwareCorrupted: 0 kB AnonHugePages: 0 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 65532 kB DirectMap2M: 5120000 kB DirectMap1G: 3145728 kB rootfs / rootfs rw 0 0 sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0 proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0 udev /dev devtmpfs rw,relatime,size=10240k,nr_inodes=1002653,mode=755 0 0 devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0 tmpfs /run tmpfs rw,nosuid,noexec,relatime,size=809992k,mode=755 0 0 /dev/disk/by-uuid/fa5c404a-bfcb-43de-87ed-e671fda1ba99 / ext4 rw,relatime,errors=remount-ro,user_xattr,barrier=1,data=ordered 0 0 tmpfs /run/lock tmpfs rw,nosuid,nodev,noexec,relatime,size=5120k 0 0 tmpfs /run/shm tmpfs rw,nosuid,nodev,noexec,relatime,size=4144720k 0 0 /dev/md1 /boot ext2 rw,relatime,errors=continue 0 0 rpc_pipefs /var/lib/nfs/rpc_pipefs rpc_pipefs rw,relatime 0 0 Backup:/Backup /Backup nfs rw,relatime,vers=3,rsize=524288,wsize=524288,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=192.168.1.51,mountvers=3,mountport=39597,mountproto=tcp,local_lock=none,addr=192.168.1.51 0 0 Backup:/var/www /var/www/backup nfs rw,relatime,vers=3,rsize=524288,wsize=524288,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=192.168.1.51,mountvers=3,mountport=39597,mountproto=tcp,local_lock=none,addr=192.168.1.51 0 0 /dev/md0 /RAID xfs rw,relatime,attr2,delaylog,sunit=2048,swidth=12288,noquota 0 0 major minor #blocks name 8 0 125034840 sda 8 1 96256 sda1 8 2 112305152 sda2 8 3 12632064 sda3 8 16 125034840 sdb 8 17 96256 sdb1 8 18 112305152 sdb2 8 19 12632064 sdb3 8 48 3907018584 sdd 8 32 3907018584 sdc 8 64 1465138584 sde 8 80 1465138584 sdf 8 96 1465138584 sdg 8 112 3907018584 sdh 8 128 3907018584 sdi 8 144 3907018584 sdj 8 160 3907018584 sdk 9 1 96192 md1 9 2 112239488 md2 9 3 12623744 md3 9 0 23441319936 md0 9 10 4395021312 md10 RAID-Server:/# cat /proc/mdstat Personalities : [raid6] [raid5] [raid4] [raid1] [raid0] md10 : active raid0 sdf[0] sde[2] sdg[1] 4395021312 blocks super 1.2 512k chunks md0 : active raid6 md10[12] sdc[13] sdk[10] sdj[11] sdi[15] sdh[8] sdd[9] 23441319936 blocks super 1.2 level 6, 1024k chunk, algorithm 2 [8/7] [UUU_UUUU] bitmap: 29/30 pages [116KB], 65536KB chunk md3 : active (auto-read-only) raid1 sda3[0] sdb3[1] 12623744 blocks super 1.2 [3/2] [UU_] bitmap: 1/1 pages [4KB], 65536KB chunk md2 : active raid1 sda2[0] sdb2[1] 112239488 blocks super 1.2 [3/2] [UU_] bitmap: 1/1 pages [4KB], 65536KB chunk md1 : active raid1 sda1[0] sdb1[1] 96192 blocks [3/2] [UU_] bitmap: 1/1 pages [4KB], 65536KB chunk unused devices: Six of the drives are 4T spindles (a mixture of makes and models). The three drives comprising MD10 are WD 1.5T green drives. These are in place to take over the function of one of the kicked 4T drives. Md1, 2, and 3 are not data drives and are not suffering any issue. I'm not sure what is meant by "write cache status" in this context. The machine has been rebooted more than once during recovery and the FS has been umounted and xfs_repair run several times. I don't know for what the acronym BBWC stands. RAID-Server:/# xfs_info /dev/md0 meta-data=/dev/md0 isize=256 agcount=43, agsize=137356288 blks = sectsz=512 attr=2 data = bsize=4096 blocks=5860329984, imaxpct=5 = sunit=256 swidth=1536 blks naming =version 2 bsize=4096 ascii-ci=0 log =internal bsize=4096 blocks=521728, version=2 = sectsz=512 sunit=8 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 The system performs just fine, other than the aforementioned, with loads in excess of 3Gbps. That is internal only. The LAN link is ony 1Gbps, so no external request exceeds about 950Mbps. > http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F > > dmesg, in particular, should tell use what the corruption being > encountered is when stat fails. RAID-Server:/# ls "/RAID/DVD/Big Sleep, The (1945)/VIDEO_TS/VTS_01_1.VOB" ls: cannot access /RAID/DVD/Big Sleep, The (1945)/VIDEO_TS/VTS_01_1.VOB: Structure needs cleaning RAID-Server:/# dmesg | tail -n 30 ... [192173.363981] XFS (md0): corrupt dinode 41006, extent total = 1, nblocks = 0. [192173.363988] ffff8802338b8e00: 49 4e 81 b6 02 02 00 00 00 00 03 e8 00 00 03 e8 IN.............. [192173.363996] XFS (md0): Internal error xfs_iformat(1) at line 319 of file /build/linux-eKuxrT/linux-3.2.60/fs/xfs/xfs_inode.c. Caller 0xffffffffa0509318 [192173.363999] [192173.364062] Pid: 10813, comm: ls Not tainted 3.2.0-4-amd64 #1 Debian 3.2.60-1+deb7u3 [192173.364065] Call Trace: [192173.364097] [] ? xfs_corruption_error+0x54/0x6f [xfs] [192173.364134] [] ? xfs_iread+0x9f/0x177 [xfs] [192173.364170] [] ? xfs_iformat+0xe3/0x462 [xfs] [192173.364204] [] ? xfs_iread+0x9f/0x177 [xfs] [192173.364240] [] ? xfs_iread+0x9f/0x177 [xfs] [192173.364268] [] ? xfs_iget+0x37c/0x56c [xfs] [192173.364300] [] ? xfs_lookup+0xa4/0xd3 [xfs] [192173.364328] [] ? xfs_vn_lookup+0x3f/0x7e [xfs] [192173.364344] [] ? d_alloc_and_lookup+0x3a/0x60 [192173.364357] [] ? walk_component+0x219/0x406 [192173.364370] [] ? path_lookupat+0x7c/0x2bd [192173.364383] [] ? should_resched+0x5/0x23 [192173.364396] [] ? _cond_resched+0x7/0x1c [192173.364408] [] ? do_path_lookup+0x1c/0x87 [192173.364420] [] ? user_path_at_empty+0x47/0x7b [192173.364434] [] ? do_page_fault+0x30a/0x345 [192173.364448] [] ? mmap_region+0x353/0x44a [192173.364460] [] ? vfs_fstatat+0x32/0x60 [192173.364471] [] ? sys_newstat+0x12/0x2b [192173.364483] [] ? page_fault+0x25/0x30 [192173.364495] [] ? system_call_fastpath+0x16/0x1b [192173.364503] XFS (md0): Corruption detected. Unmount and run xfs_repair That last line, by the way, is why I ran umount and xfs_repair. From lrhorer@mygrande.net Tue Sep 9 20:24:08 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id D350B7F56 for ; Tue, 9 Sep 2014 20:24:07 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6DCB4AC004 for ; Tue, 9 Sep 2014 18:24:07 -0700 (PDT) X-ASG-Debug-ID: 1410312245-04bdf010a08ecf40001-NocioJ Received: from mail01.lsn.net (mail01.lsn.net [66.90.130.120]) by cuda.sgi.com with ESMTP id LJHsYiVMFOrgW0Xr for ; Tue, 09 Sep 2014 18:24:06 -0700 (PDT) X-Barracuda-Envelope-From: lrhorer@mygrande.net X-Barracuda-Apparent-Source-IP: 66.90.130.120 Received: from [192.168.1.121] (24-155-170-173.dyn.grandenetworks.net [24.155.170.173]) (authenticated bits=0) by mail01.lsn.net (8.14.4/8.13.6) with ESMTP id s8A1NpkQ014855 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Tue, 9 Sep 2014 20:23:52 -0500 X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.98.4 at av01.lsn.net Message-ID: <540FA827.3090308@mygrande.net> Date: Tue, 09 Sep 2014 20:23:51 -0500 From: Leslie Rhorer User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Roger Willcocks , Sean Caron CC: Eric Sandeen , "xfs@oss.sgi.com" Subject: Re: Corrupted files References: <540F1B01.3020700@mygrande.net> <540F7E37.7020500@sandeen.net> <62B15E94-1944-457F-B298-89EDEE3EC70D@filmlight.ltd.uk> X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: <62B15E94-1944-457F-B298-89EDEE3EC70D@filmlight.ltd.uk> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail01.lsn.net[66.90.130.120] X-Barracuda-Start-Time: 1410312245 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC5_SA210e X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9328 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC5_SA210e Custom Rule SA210e On 9/9/2014 8:00 PM, Roger Willcocks wrote: > I normally watch quietly from the sidelines but I think it's important > to get some balance here That is almost always wise advice. Shooting from the hip often has regrettable consequences, yet being too cautious can have its down side, too. In this case, things are working very well at the moment, and the apparent issues are reasonably small, so there is no need for panic. > our customers between them run many hundreds > of multi-terabyte arrays and when something goes badly awry it generally > falls to me to sort it out. In my experience xfs_repair does exactly > what it says on the tin. I couldn't say. This is only the second time I have ever had an array drop, and the first time it was completely unrecoverable. Less than 5 minutes after I had started a RAID upgrade from RAID5 to RAID6, there was a protracted power outage. I shut down the system cleanly and after the outage restarted the reshape. The recovery had only been running a few minutes when the system suffered a kernel panic - I never did find out why. Every single structure on the array larger than the stripe size (16K, I think) was garbage. > I can recall only a couple of instances where we elected to reformat and > reload from backups and they were both due to human error: somebody > deleted the wrong raid unit when doing routine maintenance, and then > tried to fix it up hemselves. > > In theory of course xfs_repair shouldn't be needed if the write barriers > work properly (it's a journalled filesystem), but low-level corruption > does creep in due to power failures / kernel crashes and it's this which > xfs_repair is intended to address; not massive data corruption due to > failed hardware or careless users. Oh, yeah, like losing 3 out of 8 drives in the array after a drive controller replacement... From scaron@umich.edu Tue Sep 9 20:25:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id F2ED57F59 for ; Tue, 9 Sep 2014 20:25:44 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id E147E304053 for ; Tue, 9 Sep 2014 18:25:41 -0700 (PDT) X-ASG-Debug-ID: 1410312338-04cbb05485c18f10001-NocioJ Received: from mail-qc0-f171.google.com (mail-qc0-f171.google.com [209.85.216.171]) by cuda.sgi.com with ESMTP id xH8AIGh47xAFdsGp (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Tue, 09 Sep 2014 18:25:39 -0700 (PDT) X-Barracuda-Envelope-From: scaron@umich.edu X-Barracuda-Apparent-Source-IP: 209.85.216.171 Received: by mail-qc0-f171.google.com with SMTP id x3so18147387qcv.2 for ; Tue, 09 Sep 2014 18:25:38 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=+4QsMROfKIxAq7byZtgcGatjSdpPMHzcA9ihRgM4xQU=; b=Gp456MqoNNaUKNj550h/L/R7C5DfvntyeQRZ50JPlu85ETPasn1uAu50yKqVdqdt2F WaloYkwZ44CAeSmbe57WXpCIeXN8W8NzMQ2UuaLaWmuiR1hSjIgDcqlZUUP+xzL/9ysS 9Vu8jmUgLP/1cKpdvW+P8hyCYxbl2G0dp8tqAtBIznwMhpwIk7fK0Rt1cv+1WIDUvCAd 1Nf88hL9p/DXYkSDYhpx1n59ejemaiC9hTQEdbYyPUweUNyK4zb10mj0L6XCOWNTHzIW I+XmQBkltdckuhKIk1CsH3xpYkXY2zFHQGfxwUDuZIIiKJrQp8cz57YFM09pAfflBTXH nHUw== X-Gm-Message-State: ALoCoQlZ8Qpv8S/AvAprk8DNr2ztzakbmqAsegTPoc8+OjEGqZpBfrN55Ujlm6nyai+vF0g1QBtM MIME-Version: 1.0 X-Received: by 10.224.13.141 with SMTP id c13mr18967048qaa.85.1410312337157; Tue, 09 Sep 2014 18:25:37 -0700 (PDT) Received: by 10.224.8.132 with HTTP; Tue, 9 Sep 2014 18:25:37 -0700 (PDT) In-Reply-To: <540FA586.9090308@mygrande.net> References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> <540FA586.9090308@mygrande.net> Date: Tue, 9 Sep 2014 21:25:37 -0400 Message-ID: Subject: Re: Corrupted files From: Sean Caron X-ASG-Orig-Subj: Re: Corrupted files To: Leslie Rhorer , Sean Caron Cc: Dave Chinner , "xfs@oss.sgi.com" Content-Type: multipart/alternative; boundary=047d7bdca458e10c0d0502abed22 X-Barracuda-Connect: mail-qc0-f171.google.com[209.85.216.171] X-Barracuda-Start-Time: 1410312339 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9328 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message 0.10 BSF_SC0_SA085 Custom Rule SA085 --047d7bdca458e10c0d0502abed22 Content-Type: text/plain; charset=UTF-8 Hi Leslie, You really don't want to be running "green" anything in an array... that is a ticking time bomb just waiting to go off... let me tell you... At my installation, a predecessor had procured a large number of green drives because they were very inexpensive and regrets were had by all. Lousy performance, lots of spurious ejection/RAID gremlins and the failure rate on the WDC Greens is just appalling... BBWC stands for Battery Backed Write Cache; this is a feature of hardware RAID cards; it is just like it says on the tin; a bit (usually half a gig, or a gig, or two...) of nonvolatile cache that retains writes to the array in case of power failure, etc. If you have BBWC enabled but your battery is dead, bad things can happen. Not applicable for JBOD software RAID. I hold firm to my beliefs on xfs_repair :) As I say, you'll see a variety of opinions here. Best, Sean On Tue, Sep 9, 2014 at 9:12 PM, Leslie Rhorer wrote: > On 9/9/2014 5:06 PM, Dave Chinner wrote: > >> Fristly, more infomration is required, namely versions and actual >> error messages: >> > > Indubitably: > > RAID-Server:/# xfs_repair -V > xfs_repair version 3.1.7 > RAID-Server:/# uname -r > 3.2.0-4-amd64 > > 4.0 GHz FX-8350 eight core processor > > RAID-Server:/# cat /proc/meminfo /proc/mounts /proc/partitions > MemTotal: 8099916 kB > MemFree: 5786420 kB > Buffers: 112684 kB > Cached: 457020 kB > SwapCached: 0 kB > Active: 521800 kB > Inactive: 457268 kB > Active(anon): 276648 kB > Inactive(anon): 140180 kB > Active(file): 245152 kB > Inactive(file): 317088 kB > Unevictable: 0 kB > Mlocked: 0 kB > SwapTotal: 12623740 kB > SwapFree: 12623740 kB > Dirty: 20 kB > Writeback: 0 kB > AnonPages: 409488 kB > Mapped: 47576 kB > Shmem: 7464 kB > Slab: 197100 kB > SReclaimable: 112644 kB > SUnreclaim: 84456 kB > KernelStack: 2560 kB > PageTables: 8468 kB > NFS_Unstable: 0 kB > Bounce: 0 kB > WritebackTmp: 0 kB > CommitLimit: 16673696 kB > Committed_AS: 1010172 kB > VmallocTotal: 34359738367 kB > VmallocUsed: 339140 kB > VmallocChunk: 34359395308 kB > HardwareCorrupted: 0 kB > AnonHugePages: 0 kB > HugePages_Total: 0 > HugePages_Free: 0 > HugePages_Rsvd: 0 > HugePages_Surp: 0 > Hugepagesize: 2048 kB > DirectMap4k: 65532 kB > DirectMap2M: 5120000 kB > DirectMap1G: 3145728 kB > rootfs / rootfs rw 0 0 > sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0 > proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0 > udev /dev devtmpfs rw,relatime,size=10240k,nr_inodes=1002653,mode=755 0 0 > devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 > 0 0 > tmpfs /run tmpfs rw,nosuid,noexec,relatime,size=809992k,mode=755 0 0 > /dev/disk/by-uuid/fa5c404a-bfcb-43de-87ed-e671fda1ba99 / ext4 > rw,relatime,errors=remount-ro,user_xattr,barrier=1,data=ordered 0 0 > tmpfs /run/lock tmpfs rw,nosuid,nodev,noexec,relatime,size=5120k 0 0 > tmpfs /run/shm tmpfs rw,nosuid,nodev,noexec,relatime,size=4144720k 0 0 > /dev/md1 /boot ext2 rw,relatime,errors=continue 0 0 > rpc_pipefs /var/lib/nfs/rpc_pipefs rpc_pipefs rw,relatime 0 0 > Backup:/Backup /Backup nfs rw,relatime,vers=3,rsize= > 524288,wsize=524288,namlen=255,hard,proto=tcp,timeo=600, > retrans=2,sec=sys,mountaddr=192.168.1.51,mountvers=3, > mountport=39597,mountproto=tcp,local_lock=none,addr=192.168.1.51 0 0 > Backup:/var/www /var/www/backup nfs rw,relatime,vers=3,rsize= > 524288,wsize=524288,namlen=255,hard,proto=tcp,timeo=600, > retrans=2,sec=sys,mountaddr=192.168.1.51,mountvers=3, > mountport=39597,mountproto=tcp,local_lock=none,addr=192.168.1.51 0 0 > /dev/md0 /RAID xfs rw,relatime,attr2,delaylog,sunit=2048,swidth=12288,noquota > 0 0 > major minor #blocks name > > 8 0 125034840 sda > 8 1 96256 sda1 > 8 2 112305152 sda2 > 8 3 12632064 sda3 > 8 16 125034840 sdb > 8 17 96256 sdb1 > 8 18 112305152 sdb2 > 8 19 12632064 sdb3 > 8 48 3907018584 sdd > 8 32 3907018584 sdc > 8 64 1465138584 sde > 8 80 1465138584 sdf > 8 96 1465138584 sdg > 8 112 3907018584 sdh > 8 128 3907018584 sdi > 8 144 3907018584 sdj > 8 160 3907018584 sdk > 9 1 96192 md1 > 9 2 112239488 md2 > 9 3 12623744 md3 > 9 0 23441319936 md0 > 9 10 4395021312 md10 > > RAID-Server:/# cat /proc/mdstat > Personalities : [raid6] [raid5] [raid4] [raid1] [raid0] > md10 : active raid0 sdf[0] sde[2] sdg[1] > 4395021312 blocks super 1.2 512k chunks > > md0 : active raid6 md10[12] sdc[13] sdk[10] sdj[11] sdi[15] sdh[8] sdd[9] > 23441319936 blocks super 1.2 level 6, 1024k chunk, algorithm 2 [8/7] > [UUU_UUUU] > bitmap: 29/30 pages [116KB], 65536KB chunk > > md3 : active (auto-read-only) raid1 sda3[0] sdb3[1] > 12623744 blocks super 1.2 [3/2] [UU_] > bitmap: 1/1 pages [4KB], 65536KB chunk > > md2 : active raid1 sda2[0] sdb2[1] > 112239488 blocks super 1.2 [3/2] [UU_] > bitmap: 1/1 pages [4KB], 65536KB chunk > > md1 : active raid1 sda1[0] sdb1[1] > 96192 blocks [3/2] [UU_] > bitmap: 1/1 pages [4KB], 65536KB chunk > > unused devices: > > Six of the drives are 4T spindles (a mixture of makes and > models). The three drives comprising MD10 are WD 1.5T green drives. These > are in place to take over the function of one of the kicked 4T drives. > Md1, 2, and 3 are not data drives and are not suffering any issue. > > I'm not sure what is meant by "write cache status" in this > context. The machine has been rebooted more than once during recovery and > the FS has been umounted and xfs_repair run several times. > > I don't know for what the acronym BBWC stands. > > RAID-Server:/# xfs_info /dev/md0 > meta-data=/dev/md0 isize=256 agcount=43, agsize=137356288 > blks > = sectsz=512 attr=2 > data = bsize=4096 blocks=5860329984, imaxpct=5 > = sunit=256 swidth=1536 blks > naming =version 2 bsize=4096 ascii-ci=0 > log =internal bsize=4096 blocks=521728, version=2 > = sectsz=512 sunit=8 blks, lazy-count=1 > realtime =none extsz=4096 blocks=0, rtextents=0 > > The system performs just fine, other than the aforementioned, with > loads in excess of 3Gbps. That is internal only. The LAN link is ony > 1Gbps, so no external request exceeds about 950Mbps. > > http://xfs.org/index.php/XFS_FAQ#Q:_What_information_ >> should_I_include_when_reporting_a_problem.3F >> >> dmesg, in particular, should tell use what the corruption being >> encountered is when stat fails. >> > > RAID-Server:/# ls "/RAID/DVD/Big Sleep, The (1945)/VIDEO_TS/VTS_01_1.VOB" > ls: cannot access /RAID/DVD/Big Sleep, The (1945)/VIDEO_TS/VTS_01_1.VOB: > Structure needs cleaning > RAID-Server:/# dmesg | tail -n 30 > ... > [192173.363981] XFS (md0): corrupt dinode 41006, extent total = 1, nblocks > = 0. > [192173.363988] ffff8802338b8e00: 49 4e 81 b6 02 02 00 00 00 00 03 e8 00 > 00 03 e8 IN.............. > [192173.363996] XFS (md0): Internal error xfs_iformat(1) at line 319 of > file /build/linux-eKuxrT/linux-3.2.60/fs/xfs/xfs_inode.c. Caller > 0xffffffffa0509318 > [192173.363999] > [192173.364062] Pid: 10813, comm: ls Not tainted 3.2.0-4-amd64 #1 Debian > 3.2.60-1+deb7u3 > [192173.364065] Call Trace: > [192173.364097] [] ? xfs_corruption_error+0x54/0x6f > [xfs] > [192173.364134] [] ? xfs_iread+0x9f/0x177 [xfs] > [192173.364170] [] ? xfs_iformat+0xe3/0x462 [xfs] > [192173.364204] [] ? xfs_iread+0x9f/0x177 [xfs] > [192173.364240] [] ? xfs_iread+0x9f/0x177 [xfs] > [192173.364268] [] ? xfs_iget+0x37c/0x56c [xfs] > [192173.364300] [] ? xfs_lookup+0xa4/0xd3 [xfs] > [192173.364328] [] ? xfs_vn_lookup+0x3f/0x7e [xfs] > [192173.364344] [] ? d_alloc_and_lookup+0x3a/0x60 > [192173.364357] [] ? walk_component+0x219/0x406 > [192173.364370] [] ? path_lookupat+0x7c/0x2bd > [192173.364383] [] ? should_resched+0x5/0x23 > [192173.364396] [] ? _cond_resched+0x7/0x1c > [192173.364408] [] ? do_path_lookup+0x1c/0x87 > [192173.364420] [] ? user_path_at_empty+0x47/0x7b > [192173.364434] [] ? do_page_fault+0x30a/0x345 > [192173.364448] [] ? mmap_region+0x353/0x44a > [192173.364460] [] ? vfs_fstatat+0x32/0x60 > [192173.364471] [] ? sys_newstat+0x12/0x2b > [192173.364483] [] ? page_fault+0x25/0x30 > [192173.364495] [] ? system_call_fastpath+0x16/0x1b > [192173.364503] XFS (md0): Corruption detected. Unmount and run xfs_repair > > That last line, by the way, is why I ran umount and xfs_repair. > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs > --047d7bdca458e10c0d0502abed22 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi Leslie,

You really don't want to= be running "green" anything in an array... that is a ticking tim= e bomb just waiting to go off... let me tell you... At my installation, a p= redecessor had procured a large number of green drives because they were ve= ry inexpensive and regrets were had by all. Lousy performance, lots of spur= ious ejection/RAID gremlins and the failure rate on the WDC Greens is just = appalling...

BBWC stands for Battery Backed Write = Cache; this is a feature of hardware RAID cards; it is just like it says on= the tin; a bit (usually half a gig, or a gig, or two...) of nonvolatile ca= che that retains writes to the array in case of power failure, etc. If you = have BBWC enabled but your battery is dead, bad things can happen. Not appl= icable for JBOD software RAID.

I hold firm to my b= eliefs on xfs_repair :) As I say, you'll see a variety of opinions here= .=C2=A0

Best,

Sean
<= div>



On Tue, Sep 9, 2014 at 9:12 PM, Leslie Rho= rer <lrhorer@mygrande.net> wrote:
On 9/9/2014 5:06 PM, Dave Chinner wrote:
Fristly, more infomration is required, namely versions and actual
error messages:

 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Indubitably:

RAID-Server:/# xfs_repair -V
xfs_repair version 3.1.7
RAID-Server:/# uname -r
3.2.0-4-amd64

4.0 GHz FX-8350 eight core processor

RAID-Server:/# cat /proc/meminfo /proc/mounts /proc/partitions
MemTotal:=C2=A0 =C2=A0 =C2=A0 =C2=A0 8099916 kB
MemFree:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A05786420 kB
Buffers:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 112684 kB
Cached:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0457020 kB
SwapCached:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 0 kB
Active:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0521800 kB
Inactive:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0457268 kB
Active(anon):=C2=A0 =C2=A0 =C2=A0276648 kB
Inactive(anon):=C2=A0 =C2=A0140180 kB
Active(file):=C2=A0 =C2=A0 =C2=A0245152 kB
Inactive(file):=C2=A0 =C2=A0317088 kB
Unevictable:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A00 kB
Mlocked:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A00 kB
SwapTotal:=C2=A0 =C2=A0 =C2=A0 12623740 kB
SwapFree:=C2=A0 =C2=A0 =C2=A0 =C2=A012623740 kB
Dirty:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 20 kB
Writeback:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A00 kB
AnonPages:=C2=A0 =C2=A0 =C2=A0 =C2=A0 409488 kB
Mapped:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 47576 kB
Shmem:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 7464 kB
Slab:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0197100 kB
SReclaimable:=C2=A0 =C2=A0 =C2=A0112644 kB
SUnreclaim:=C2=A0 =C2=A0 =C2=A0 =C2=A0 84456 kB
KernelStack:=C2=A0 =C2=A0 =C2=A0 =C2=A0 2560 kB
PageTables:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A08468 kB
NFS_Unstable:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 0 kB
Bounce:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 0 kB
WritebackTmp:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 0 kB
CommitLimit:=C2=A0 =C2=A0 16673696 kB
Committed_AS:=C2=A0 =C2=A0 1010172 kB
VmallocTotal:=C2=A0 =C2=A034359738367 kB
VmallocUsed:=C2=A0 =C2=A0 =C2=A0 339140 kB
VmallocChunk:=C2=A0 =C2=A034359395308 kB
HardwareCorrupted:=C2=A0 =C2=A0 =C2=A00 kB
AnonHugePages:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A00 kB
HugePages_Total:=C2=A0 =C2=A0 =C2=A0 =C2=A00
HugePages_Free:=C2=A0 =C2=A0 =C2=A0 =C2=A0 0
HugePages_Rsvd:=C2=A0 =C2=A0 =C2=A0 =C2=A0 0
HugePages_Surp:=C2=A0 =C2=A0 =C2=A0 =C2=A0 0
Hugepagesize:=C2=A0 =C2=A0 =C2=A0 =C2=A02048 kB
DirectMap4k:=C2=A0 =C2=A0 =C2=A0 =C2=A065532 kB
DirectMap2M:=C2=A0 =C2=A0 =C2=A05120000 kB
DirectMap1G:=C2=A0 =C2=A0 =C2=A03145728 kB
rootfs / rootfs rw 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
udev /dev devtmpfs rw,relatime,size=3D10240k,nr_inodes=3D1002653,mod= e=3D755 0 0
devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=3D5,mode=3D620,= ptmxmode=3D000 0 0
tmpfs /run tmpfs rw,nosuid,noexec,relatime,size=3D809992k,mode=3D755= 0 0
/dev/disk/by-uuid/fa5c404a-bfcb-43de-87ed-e671fda1ba99 / ext4 rw,rel= atime,errors=3Dremount-ro,user_xattr,barrier=3D1,data=3Dorder= ed 0 0
tmpfs /run/lock tmpfs rw,nosuid,nodev,noexec,relatime,size=3D5120k 0= 0
tmpfs /run/shm tmpfs rw,nosuid,nodev,noexec,relatime,size=3D4144720k= 0 0
/dev/md1 /boot ext2 rw,relatime,errors=3Dcontinue 0 0
rpc_pipefs /var/lib/nfs/rpc_pipefs rpc_pipefs rw,relatime 0 0
Backup:/Backup /Backup nfs rw,relatime,vers=3D3,rsize=3D524288,wsize= =3D524288,namlen=3D255,hard,proto=3Dtcp,timeo=3D600,retrans= =3D2,sec=3Dsys,mountaddr=3D192.168.1.51,mountvers=3D3,mountpo= rt=3D39597,mountproto=3Dtcp,local_lock=3Dnone,addr=3D192.168.= 1.51 0 0
Backup:/var/www /var/www/backup nfs rw,relatime,vers=3D3,rsize=3D524= 288,wsize=3D524288,namlen=3D255,hard,proto=3Dtcp,timeo=3D600,= retrans=3D2,sec=3Dsys,mountaddr=3D192.168.1.51,mountvers=3D3,= mountport=3D39597,mountproto=3Dtcp,local_lock=3Dnone,addr=3D192.<= /u>168.1.51 0 0
/dev/md0 /RAID xfs rw,relatime,attr2,delaylog,sunit=3D2048,swidth=3D= 12288,noquota 0 0
major minor=C2=A0 #blocks=C2=A0 name

=C2=A0 =C2=A08=C2=A0 =C2=A0 =C2=A0 =C2=A0 0=C2=A0 125034840 sda
=C2=A0 =C2=A08=C2=A0 =C2=A0 =C2=A0 =C2=A0 1=C2=A0 =C2=A0 =C2=A0 96256 sda1<= br> =C2=A0 =C2=A08=C2=A0 =C2=A0 =C2=A0 =C2=A0 2=C2=A0 112305152 sda2
=C2=A0 =C2=A08=C2=A0 =C2=A0 =C2=A0 =C2=A0 3=C2=A0 =C2=A012632064 sda3
=C2=A0 =C2=A08=C2=A0 =C2=A0 =C2=A0 =C2=A016 125034840 sdb
=C2=A0 =C2=A08=C2=A0 =C2=A0 =C2=A0 =C2=A017=C2=A0 =C2=A0 =C2=A0 96256 sdb1<= br> =C2=A0 =C2=A08=C2=A0 =C2=A0 =C2=A0 =C2=A018=C2=A0 112305152 sdb2
=C2=A0 =C2=A08=C2=A0 =C2=A0 =C2=A0 =C2=A019=C2=A0 =C2=A012632064 sdb3
=C2=A0 =C2=A08=C2=A0 =C2=A0 =C2=A0 =C2=A048 3907018584 sdd
=C2=A0 =C2=A08=C2=A0 =C2=A0 =C2=A0 =C2=A032 3907018584 sdc
=C2=A0 =C2=A08=C2=A0 =C2=A0 =C2=A0 =C2=A064 1465138584 sde
=C2=A0 =C2=A08=C2=A0 =C2=A0 =C2=A0 =C2=A080 1465138584 sdf
=C2=A0 =C2=A08=C2=A0 =C2=A0 =C2=A0 =C2=A096 1465138584 sdg
=C2=A0 =C2=A08=C2=A0 =C2=A0 =C2=A0 112 3907018584 sdh
=C2=A0 =C2=A08=C2=A0 =C2=A0 =C2=A0 128 3907018584 sdi
=C2=A0 =C2=A08=C2=A0 =C2=A0 =C2=A0 144 3907018584 sdj
=C2=A0 =C2=A08=C2=A0 =C2=A0 =C2=A0 160 3907018584 sdk
=C2=A0 =C2=A09=C2=A0 =C2=A0 =C2=A0 =C2=A0 1=C2=A0 =C2=A0 =C2=A0 96192 md1 =C2=A0 =C2=A09=C2=A0 =C2=A0 =C2=A0 =C2=A0 2=C2=A0 112239488 md2
=C2=A0 =C2=A09=C2=A0 =C2=A0 =C2=A0 =C2=A0 3=C2=A0 =C2=A012623744 md3
=C2=A0 =C2=A09=C2=A0 =C2=A0 =C2=A0 =C2=A0 0 23441319936 md0
=C2=A0 =C2=A09=C2=A0 =C2=A0 =C2=A0 =C2=A010 4395021312 md10

RAID-Server:/# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [raid1] [raid0]
md10 : active raid0 sdf[0] sde[2] sdg[1]
=C2=A0 =C2=A0 =C2=A0 4395021312 blocks super 1.2 512k chunks

md0 : active raid6 md10[12] sdc[13] sdk[10] sdj[11] sdi[15] sdh[8] sdd[9] =C2=A0 =C2=A0 =C2=A0 23441319936 blocks super 1.2 level 6, 1024k chunk, alg= orithm 2 [8/7] [UUU_UUUU]
=C2=A0 =C2=A0 =C2=A0 bitmap: 29/30 pages [116KB], 65536KB chunk

md3 : active (auto-read-only) raid1 sda3[0] sdb3[1]
=C2=A0 =C2=A0 =C2=A0 12623744 blocks super 1.2 [3/2] [UU_]
=C2=A0 =C2=A0 =C2=A0 bitmap: 1/1 pages [4KB], 65536KB chunk

md2 : active raid1 sda2[0] sdb2[1]
=C2=A0 =C2=A0 =C2=A0 112239488 blocks super 1.2 [3/2] [UU_]
=C2=A0 =C2=A0 =C2=A0 bitmap: 1/1 pages [4KB], 65536KB chunk

md1 : active raid1 sda1[0] sdb1[1]
=C2=A0 =C2=A0 =C2=A0 96192 blocks [3/2] [UU_]
=C2=A0 =C2=A0 =C2=A0 bitmap: 1/1 pages [4KB], 65536KB chunk

unused devices: <none>

=C2=A0 =C2=A0 =C2=A0 =C2=A0 Six of the drives are 4T spindles (a mixture of= makes and models).=C2=A0 The three drives comprising MD10 are WD 1.5T gree= n drives.=C2=A0 These are in place to take over the function of one of the = kicked 4T drives.=C2=A0 Md1, 2, and 3 are not data drives and are not suffe= ring any issue.

=C2=A0 =C2=A0 =C2=A0 =C2=A0 I'm not sure what is meant by "write c= ache status" in this context. The machine has been rebooted more than = once during recovery and the FS has been umounted and xfs_repair run severa= l times.

=C2=A0 =C2=A0 =C2=A0 =C2=A0 I don't know for what the acronym BBWC stan= ds.

RAID-Server:/# xfs_info /dev/md0
meta-data=3D/dev/md0=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= isize=3D256=C2=A0 =C2=A0 agcount=3D43, agsize=3D137356288 blks
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=3D=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0sectsz=3D512=C2=A0 =C2=A0attr= =3D2
data=C2=A0 =C2=A0 =C2=A0=3D=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0bsize=3D4096=C2=A0 =C2=A0blocks=3D586032= 9984, imaxpct=3D5
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=3D=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0sunit=3D256=C2=A0 =C2=A0 swidt= h=3D1536 blks
naming=C2=A0 =C2=A0=3Dversion 2=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 bsize=3D4096=C2=A0 =C2=A0ascii-ci=3D0
log=C2=A0 =C2=A0 =C2=A0 =3Dinternal=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0bsize=3D4096=C2=A0 =C2=A0blocks=3D521728, version=3D2
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=3D=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0sectsz=3D512=C2=A0 =C2=A0sunit= =3D8 blks, lazy-count=3D1
realtime =3Dnone=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0extsz=3D4096=C2=A0 =C2=A0blocks=3D0, rtextents=3D0

=C2=A0 =C2=A0 =C2=A0 =C2=A0 The system performs just fine, other than the a= forementioned, with loads in excess of 3Gbps.=C2=A0 That is internal only.= =C2=A0 The LAN link is ony 1Gbps, so no external request exceeds about 950M= bps.

http://xfs.org/index.p= hp/XFS_FAQ#Q:_What_information_should_I_include_when_r= eporting_a_problem.3F

dmesg, in particular, should tell use what the corruption being
encountered is when stat fails.

 RAID-Server:/# ls "/RAID/DVD/Big Sleep, The (1945)/VIDEO_TS/VTS_01_1.V= OB"
ls: cannot access /RAID/DVD/Big Sleep, The (1945)/VIDEO_TS/VTS_01_1.VOB: St= ructure needs cleaning
RAID-Server:/# dmesg | tail -n 30
...
[192173.363981] XFS (md0): corrupt dinode 41006, extent total =3D 1, nblock= s =3D 0.
[192173.363988] ffff8802338b8e00: 49 4e 81 b6 02 02 00 00 00 00 03 e8 00 00= 03 e8=C2=A0 IN..............
[192173.363996] XFS (md0): Internal error xfs_iformat(1) at line 319 of fil= e /build/linux-eKuxrT/linux-3.2.60/fs/xfs/xfs_inode.c.=C2=A0 Caller = 0xffffffffa0509318
[192173.363999]
[192173.364062] Pid: 10813, comm: ls Not tainted 3.2.0-4-amd64 #1 Debian 3.= 2.60-1+deb7u3
[192173.364065] Call Trace:
[192173.364097]=C2=A0 [<ffffffffa04d3731>] ? xfs_corruption_error+0x5= 4/0x6f [xfs]
[192173.364134]=C2=A0 [<ffffffffa0509318>] ? xfs_iread+0x9f/0x177 [xf= s]
[192173.364170]=C2=A0 [<ffffffffa0508efa>] ? xfs_iformat+0xe3/0x462 [= xfs]
[192173.364204]=C2=A0 [<ffffffffa0509318>] ? xfs_iread+0x9f/0x177 [xf= s]
[192173.364240]=C2=A0 [<ffffffffa0509318>] ? xfs_iread+0x9f/0x177 [xf= s]
[192173.364268]=C2=A0 [<ffffffffa04d6ebe>] ? xfs_iget+0x37c/0x56c [xf= s]
[192173.364300]=C2=A0 [<ffffffffa04e13b4>] ? xfs_lookup+0xa4/0xd3 [xf= s]
[192173.364328]=C2=A0 [<ffffffffa04d9e5a>] ? xfs_vn_lookup+0x3f/0x7e = [xfs]
[192173.364344]=C2=A0 [<ffffffff81102de9>] ? d_alloc_and_lookup+0x3a/= 0x60
[192173.364357]=C2=A0 [<ffffffff8110388d>] ? walk_component+0x219/0x4= 06
[192173.364370]=C2=A0 [<ffffffff81104721>] ? path_lookupat+0x7c/0x2bd=
[192173.364383]=C2=A0 [<ffffffff81036628>] ? should_resched+0x5/0x23<= br> [192173.364396]=C2=A0 [<ffffffff8134f144>] ? _cond_resched+0x7/0x1c [192173.364408]=C2=A0 [<ffffffff8110497e>] ? do_path_lookup+0x1c/0x87=
[192173.364420]=C2=A0 [<ffffffff81106407>] ? user_path_at_empty+0x47/= 0x7b
[192173.364434]=C2=A0 [<ffffffff813533d8>] ? do_page_fault+0x30a/0x34= 5
[192173.364448]=C2=A0 [<ffffffff810d6a04>] ? mmap_region+0x353/0x44a<= br> [192173.364460]=C2=A0 [<ffffffff810fe45a>] ? vfs_fstatat+0x32/0x60 [192173.364471]=C2=A0 [<ffffffff810fe590>] ? sys_newstat+0x12/0x2b [192173.364483]=C2=A0 [<ffffffff813509f5>] ? page_fault+0x25/0x30
[192173.364495]=C2=A0 [<ffffffff81355452>] ? system_call_fastpath+0x1= 6/0x1b
[192173.364503] XFS (md0): Corruption detected. Unmount and run xfs_repair<= br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 That last line, by the way, is why I ran umount= and xfs_repair.


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--047d7bdca458e10c0d0502abed22-- From lrhorer@mygrande.net Tue Sep 9 20:31:18 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id DBD497F5D for ; Tue, 9 Sep 2014 20:31:18 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 9919D304048 for ; Tue, 9 Sep 2014 18:31:18 -0700 (PDT) X-ASG-Debug-ID: 1410312676-04cbb05488c19170001-NocioJ Received: from mail01.lsn.net (mail01.lsn.net [66.90.130.120]) by cuda.sgi.com with ESMTP id 15nnJ8nOpEu7klmS for ; Tue, 09 Sep 2014 18:31:16 -0700 (PDT) X-Barracuda-Envelope-From: lrhorer@mygrande.net X-Barracuda-Apparent-Source-IP: 66.90.130.120 Received: from [192.168.1.121] (24-155-170-173.dyn.grandenetworks.net [24.155.170.173]) (authenticated bits=0) by mail01.lsn.net (8.14.4/8.13.6) with ESMTP id s8A1V7Ik019625 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Tue, 9 Sep 2014 20:31:08 -0500 X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.98.4 at av01.lsn.net Message-ID: <540FA9DB.20000@mygrande.net> Date: Tue, 09 Sep 2014 20:31:07 -0500 From: Leslie Rhorer User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Roger Willcocks CC: Eric Sandeen , Sean Caron , "xfs@oss.sgi.com" Subject: Re: Corrupted files References: <540F1B01.3020700@mygrande.net> <540F7E37.7020500@sandeen.net> <540F9FE9.7070500@mygrande.net> <3E40936B-A1F2-424D-B0B3-54B6C7B50B13@filmlight.ltd.uk> X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: <3E40936B-A1F2-424D-B0B3-54B6C7B50B13@filmlight.ltd.uk> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail01.lsn.net[66.90.130.120] X-Barracuda-Start-Time: 1410312676 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9328 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 On 9/9/2014 8:10 PM, Roger Willcocks wrote: > > On 10 Sep 2014, at 01:48, Leslie Rhorer wrote: > >> The only ones remaining at issue are 3 files which cannot be read, written or deleted. > > The most straightforward fix would be to note down the inode numbers of the three fies and then use xfs_db to clear the inodes; then run xfs_repair again. > > See: > > http://xfs.org/index.php/XFS_FAQ#Q:_How_to_get_around_a_bad_inode_repair_is_unable_to_clean_up That sounds reasonable. If no one has any more sound advice, I think I will try that. > but before that try running the latest (3.2.1 I think) xfs_repair. I am always reticent to run anything outside the distro package. Ive had problems in the past with doing so. 3.1.7 is pretty close, so unless there is a really solid reason to use 3.2.1 vs. 3.1.7, I think I will stick with the distro version and try the above. Can you or anyone else give a reason why 3.2.1 would work when 3.1.7 would not? More importantly, is there some reason 3.1.7 would make things worse while 3.2.1 would not? If not, then I can always try 3.1.7 and then try 3.2.1 if that does not help. From lrhorer@mygrande.net Tue Sep 9 20:43:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 5AD647F5F for ; Tue, 9 Sep 2014 20:43:11 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 3CF648F8052 for ; Tue, 9 Sep 2014 18:43:11 -0700 (PDT) X-ASG-Debug-ID: 1410313389-04cbb05487c1ac20001-NocioJ Received: from mail04.lsn.net (mail04.lsn.net [66.90.130.138]) by cuda.sgi.com with ESMTP id 8vstn0KcJ354nJpy for ; Tue, 09 Sep 2014 18:43:10 -0700 (PDT) X-Barracuda-Envelope-From: lrhorer@mygrande.net X-Barracuda-Apparent-Source-IP: 66.90.130.138 Received: from [192.168.1.121] (24-155-170-173.dyn.grandenetworks.net [24.155.170.173]) (authenticated bits=0) by mail04.lsn.net (8.14.4/8.13.6) with ESMTP id s8A1h8Xv017150 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Tue, 9 Sep 2014 20:43:09 -0500 X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.98.4 at av02.lsn.net Message-ID: <540FACAC.3010504@mygrande.net> Date: Tue, 09 Sep 2014 20:43:08 -0500 From: Leslie Rhorer User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Sean Caron CC: "xfs@oss.sgi.com" Subject: Re: Corrupted files References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> <540FA586.9090308@mygrande.net> X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail04.lsn.net[66.90.130.138] X-Barracuda-Start-Time: 1410313389 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC5_SA210e X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9328 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC5_SA210e Custom Rule SA210e On 9/9/2014 8:25 PM, Sean Caron wrote: > Hi Leslie, > > You really don't want to be running "green" anything in an array... that > is a ticking time bomb just waiting to go off... let me tell you... At > my installation, a predecessor had procured a large number of green > drives because they were very inexpensive and regrets were had by all. The alternative is nothing at all. I am not a company, just a guy with a couple of arrays at his house. 'Not a rich guy, either. I've had these arrays since 2001 with only one other mass drive failure, and that was not unrecoverable, nor were they "green" drives. (Four Seagate drives all suddenly decided they did not want to be part of the array, so md kicked all four simultaneously. After that, they would not stay up as part of the array long enough to be mounted. I was able to read all four with dd_rescue, and get the array back online without a single lost file. Note also these arrays are not usually under any sort of massive load. The bulk of the data is video files which are written once at about 80MBps and then read one-by-one at about 4MBps. > Lousy performance, lots of spurious ejection/RAID gremlins and the > failure rate on the WDC Greens is just appalling... None of the failed drives were WD green. All three and the previous four were Seagate. I realize that is not a large statistical sample. > BBWC stands for Battery Backed Write Cache; this is a feature of > hardware RAID cards Ah, yes. This array does not have a BBWC controller. The backup array does, actually, but the battery backup is disabled. > it is just like it says on the tin; a bit (usually > half a gig, or a gig, or two...) of nonvolatile cache that retains > writes to the array in case of power failure, etc. If you have BBWC > enabled but your battery is dead, bad things can happen. Not applicable > for JBOD software RAID. Exactly. All the arrays are JBOD / mdadm. From david@fromorbit.com Tue Sep 9 20:53:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 47B8B7F61 for ; Tue, 9 Sep 2014 20:53:38 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id B20BEAC004 for ; Tue, 9 Sep 2014 18:53:37 -0700 (PDT) X-ASG-Debug-ID: 1410314013-04cb6c54fd9487a0001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id kbSHjkiadBrRTO2f for ; Tue, 09 Sep 2014 18:53:34 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ApxPAI6uD1R5LKYhPGdsb2JhbAA/GoMNU1eCLIsto1cGmRaBWYVpAgIBAQGBBxcFAQEBATg3hAMBAQQBHhwcIwULCAMOCgklDwUlAwcaE4g6Bw42vFMBFxiFZIhpGgxCB4RMBZUWW4cBmSIrLwGBB4FHAQEB Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail05.adl6.internode.on.net with ESMTP; 10 Sep 2014 11:23:32 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XRX6B-00071U-Ic; Wed, 10 Sep 2014 11:53:31 +1000 Date: Wed, 10 Sep 2014 11:53:31 +1000 From: Dave Chinner To: Leslie Rhorer Cc: xfs@oss.sgi.com Subject: Re: Corrupted files Message-ID: <20140910015331.GJ20518@dastard> X-ASG-Orig-Subj: Re: Corrupted files References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> <540FA586.9090308@mygrande.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <540FA586.9090308@mygrande.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1410314013 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9328 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 On Tue, Sep 09, 2014 at 08:12:38PM -0500, Leslie Rhorer wrote: > On 9/9/2014 5:06 PM, Dave Chinner wrote: > >Fristly, more infomration is required, namely versions and actual > >error messages: > > Indubitably: > > RAID-Server:/# xfs_repair -V > xfs_repair version 3.1.7 > RAID-Server:/# uname -r > 3.2.0-4-amd64 Ok, so a relatively old xfs_repair. That's important - read on.... > 4.0 GHz FX-8350 eight core processor > > RAID-Server:/# cat /proc/meminfo /proc/mounts /proc/partitions > MemTotal: 8099916 kB .... > /dev/md0 /RAID xfs > rw,relatime,attr2,delaylog,sunit=2048,swidth=12288,noquota 0 0 FWIW, you don't need sunit=2048,swidth=12288 in the mount options - they are stored on disk and the mount options are only necessray to change the on-disk values. > Personalities : [raid6] [raid5] [raid4] [raid1] [raid0] > md10 : active raid0 sdf[0] sde[2] sdg[1] > 4395021312 blocks super 1.2 512k chunks > > md0 : active raid6 md10[12] sdc[13] sdk[10] sdj[11] sdi[15] sdh[8] sdd[9] > 23441319936 blocks super 1.2 level 6, 1024k chunk, algorithm 2 > [8/7] [UUU_UUUU] > bitmap: 29/30 pages [116KB], 65536KB chunk > > md3 : active (auto-read-only) raid1 sda3[0] sdb3[1] > 12623744 blocks super 1.2 [3/2] [UU_] > bitmap: 1/1 pages [4KB], 65536KB chunk > > md2 : active raid1 sda2[0] sdb2[1] > 112239488 blocks super 1.2 [3/2] [UU_] > bitmap: 1/1 pages [4KB], 65536KB chunk > > md1 : active raid1 sda1[0] sdb1[1] > 96192 blocks [3/2] [UU_] > bitmap: 1/1 pages [4KB], 65536KB chunk > > unused devices: > > Six of the drives are 4T spindles (a mixture of makes and models). > The three drives comprising MD10 are WD 1.5T green drives. These > are in place to take over the function of one of the kicked 4T > drives. Md1, 2, and 3 are not data drives and are not suffering any > issue. Ok, that's creative. But when you need another drive in the array and you don't have the right spares.... ;) > I'm not sure what is meant by "write cache status" in this context. > The machine has been rebooted more than once during recovery and the > FS has been umounted and xfs_repair run several times. Start here and read the next few entries: http://xfs.org/index.php/XFS_FAQ#Q:_What_is_the_problem_with_the_write_cache_on_journaled_filesystems.3F > I don't know for what the acronym BBWC stands. "battery backed write cache". If you're not using a hardware RAID controller, it's unlikely you have one. The difference between a drive write cache and a BBWC is that the BBWC is non-volatile - it does not get lost when power drops. > RAID-Server:/# xfs_info /dev/md0 > meta-data=/dev/md0 isize=256 agcount=43, > agsize=137356288 blks > = sectsz=512 attr=2 > data = bsize=4096 blocks=5860329984, imaxpct=5 > = sunit=256 swidth=1536 blks > naming =version 2 bsize=4096 ascii-ci=0 > log =internal bsize=4096 blocks=521728, version=2 > = sectsz=512 sunit=8 blks, lazy-count=1 > realtime =none extsz=4096 blocks=0, rtextents=0 Ok, that all looks pretty good, and the sunit/swidth match the mount options you set so you definitely don't need the mount options... > The system performs just fine, other than the aforementioned, with > loads in excess of 3Gbps. That is internal only. The LAN link is > ony 1Gbps, so no external request exceeds about 950Mbps. > > >http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F > > > >dmesg, in particular, should tell use what the corruption being > >encountered is when stat fails. > > RAID-Server:/# ls "/RAID/DVD/Big Sleep, The (1945)/VIDEO_TS/VTS_01_1.VOB" > ls: cannot access /RAID/DVD/Big Sleep, The > (1945)/VIDEO_TS/VTS_01_1.VOB: Structure needs cleaning > RAID-Server:/# dmesg | tail -n 30 > ... > [192173.363981] XFS (md0): corrupt dinode 41006, extent total = 1, > nblocks = 0. > [192173.363988] ffff8802338b8e00: 49 4e 81 b6 02 02 00 00 00 00 03 > e8 00 00 03 e8 IN.............. > [192173.363996] XFS (md0): Internal error xfs_iformat(1) at line 319 > of file /build/linux-eKuxrT/linux-3.2.60/fs/xfs/xfs_inode.c. Caller > 0xffffffffa0509318 > [192173.363999] > [192173.364062] Pid: 10813, comm: ls Not tainted 3.2.0-4-amd64 #1 > Debian 3.2.60-1+deb7u3 > [192173.364065] Call Trace: > [192173.364097] [] ? xfs_corruption_error+0x54/0x6f [xfs] > [192173.364134] [] ? xfs_iread+0x9f/0x177 [xfs] > [192173.364170] [] ? xfs_iformat+0xe3/0x462 [xfs] > [192173.364204] [] ? xfs_iread+0x9f/0x177 [xfs] > [192173.364240] [] ? xfs_iread+0x9f/0x177 [xfs] > [192173.364268] [] ? xfs_iget+0x37c/0x56c [xfs] > [192173.364300] [] ? xfs_lookup+0xa4/0xd3 [xfs] > [192173.364328] [] ? xfs_vn_lookup+0x3f/0x7e [xfs] > [192173.364344] [] ? d_alloc_and_lookup+0x3a/0x60 > [192173.364357] [] ? walk_component+0x219/0x406 > [192173.364370] [] ? path_lookupat+0x7c/0x2bd > [192173.364383] [] ? should_resched+0x5/0x23 > [192173.364396] [] ? _cond_resched+0x7/0x1c > [192173.364408] [] ? do_path_lookup+0x1c/0x87 > [192173.364420] [] ? user_path_at_empty+0x47/0x7b > [192173.364434] [] ? do_page_fault+0x30a/0x345 > [192173.364448] [] ? mmap_region+0x353/0x44a > [192173.364460] [] ? vfs_fstatat+0x32/0x60 > [192173.364471] [] ? sys_newstat+0x12/0x2b > [192173.364483] [] ? page_fault+0x25/0x30 > [192173.364495] [] ? system_call_fastpath+0x16/0x1b > [192173.364503] XFS (md0): Corruption detected. Unmount and run xfs_repair > > That last line, by the way, is why I ran umount and xfs_repair. Right, that's the correct thing to do, but sometimes there are issues that repair doesn't handle properly. This *was* one of them, and it was fixed by commit e1f43b4 ("repair: update extent count after zapping duplicate blocks") which was added to xfs_repair v3.1.8. IOWs, upgrading xfsprogs to the latest release and re-running xfs_repair should fix this error. Cheers, Dave. -- Dave Chinner david@fromorbit.com From lrhorer@mygrande.net Tue Sep 9 22:11:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 24E2E7F66 for ; Tue, 9 Sep 2014 22:11:52 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 1348D304048 for ; Tue, 9 Sep 2014 20:11:49 -0700 (PDT) X-ASG-Debug-ID: 1410318707-04cbb05485c3e270001-NocioJ Received: from mail02.lsn.net (mail02.lsn.net [66.90.130.128]) by cuda.sgi.com with ESMTP id bigOQlrixdHdiAjr for ; Tue, 09 Sep 2014 20:11:47 -0700 (PDT) X-Barracuda-Envelope-From: lrhorer@mygrande.net X-Barracuda-Apparent-Source-IP: 66.90.130.128 Received: from [192.168.1.121] (24-155-170-173.dyn.grandenetworks.net [24.155.170.173]) (authenticated bits=0) by mail02.lsn.net (8.14.4/8.13.6) with ESMTP id s8A3AjIT017931 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Tue, 9 Sep 2014 22:10:46 -0500 X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.98.4 at av02.lsn.net Message-ID: <540FC135.8010601@mygrande.net> Date: Tue, 09 Sep 2014 22:10:45 -0500 From: Leslie Rhorer User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com Subject: Re: Corrupted files References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> <540FA586.9090308@mygrande.net> <20140910015331.GJ20518@dastard> X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: <20140910015331.GJ20518@dastard> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail02.lsn.net[66.90.130.128] X-Barracuda-Start-Time: 1410318707 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9329 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 On 9/9/2014 8:53 PM, Dave Chinner wrote: > On Tue, Sep 09, 2014 at 08:12:38PM -0500, Leslie Rhorer wrote: >> On 9/9/2014 5:06 PM, Dave Chinner wrote: >>> Fristly, more infomration is required, namely versions and actual >>> error messages: >> >> Indubitably: >> >> RAID-Server:/# xfs_repair -V >> xfs_repair version 3.1.7 >> RAID-Server:/# uname -r >> 3.2.0-4-amd64 > > Ok, so a relatively old xfs_repair. That's important - read on.... OK, a good reason is a good reason. >> 4.0 GHz FX-8350 eight core processor >> >> RAID-Server:/# cat /proc/meminfo /proc/mounts /proc/partitions >> MemTotal: 8099916 kB > .... >> /dev/md0 /RAID xfs >> rw,relatime,attr2,delaylog,sunit=2048,swidth=12288,noquota 0 0 > > FWIW, you don't need sunit=2048,swidth=12288 in the mount options - > they are stored on disk and the mount options are only necessray to > change the on-disk values. They aren't. Those were created automatically, weather at creation time or at mount time, I don't know, but the filesystem was created with mkfs.xfs /dev/md0 and fstab contains: /dev/md0 /RAID xfs rw 1 2 >> Six of the drives are 4T spindles (a mixture of makes and models). >> The three drives comprising MD10 are WD 1.5T green drives. These >> are in place to take over the function of one of the kicked 4T >> drives. Md1, 2, and 3 are not data drives and are not suffering any >> issue. > > Ok, that's creative. But when you need another drive in the array > and you don't have the right spares.... ;) Yes, but I wasn't really expecting to need 3 spares this soon or suddenly. These are fairly new drives, and with 33% of the array being parity, the sudden need for 3 extra drives just is not too likely. That, plus I have quite a few 1.5 and 1.0T drives lying around in case of sudden emergency. This isn't the first time I've replaced a single drive temporarily with a RAID0. The performance is actually better, of course, and for the 3 or 4 days it takes to get a new drive, it's really not an issue. Since I have a full online backup system plus a regularly updated off-site backup, the risk is quite minimal. This is an exercise in mild inconvenience, not an emergency failure. If this were a commercial system, it would be another matter, but I know for a fact there are a very large number of home NAS solutions in place that are less robust than this one. I personally know quite a few people who never do backups, at all. >> I'm not sure what is meant by "write cache status" in this context. >> The machine has been rebooted more than once during recovery and the >> FS has been umounted and xfs_repair run several times. > > Start here and read the next few entries: > > http://xfs.org/index.php/XFS_FAQ#Q:_What_is_the_problem_with_the_write_cache_on_journaled_filesystems.3F I knew that, but I still don't see the relevance in this context. There is no battery backup on the drive controller or the drives, and the drives have all been powered down and back up several times. Anything in any cache right now would be from some operation in the last few minutes, not four days ago. >> I don't know for what the acronym BBWC stands. > > "battery backed write cache". If you're not using a hardware RAID > controller, it's unlikely you have one. See my previous. I do have one (a 3Ware 9650E, given to me by a friend when his company switched to zfs for their server). It's not on this system. This array is on a HighPoint RocketRAID 2722. > The difference between a > drive write cache and a BBWC is that the BBWC is non-volatile - it > does not get lost when power drops. Yeah, I'm aware, thanks. I just didn't cotton to the acronym. >> RAID-Server:/# xfs_info /dev/md0 >> meta-data=/dev/md0 isize=256 agcount=43, >> agsize=137356288 blks >> = sectsz=512 attr=2 >> data = bsize=4096 blocks=5860329984, imaxpct=5 >> = sunit=256 swidth=1536 blks >> naming =version 2 bsize=4096 ascii-ci=0 >> log =internal bsize=4096 blocks=521728, version=2 >> = sectsz=512 sunit=8 blks, lazy-count=1 >> realtime =none extsz=4096 blocks=0, rtextents=0 > > Ok, that all looks pretty good, and the sunit/swidth match the mount > options you set so you definitely don't need the mount options... Yeah, I didn't set them. What did, I don't really know for certain. See above. >> [192173.364460] [] ? vfs_fstatat+0x32/0x60 >> [192173.364471] [] ? sys_newstat+0x12/0x2b >> [192173.364483] [] ? page_fault+0x25/0x30 >> [192173.364495] [] ? system_call_fastpath+0x16/0x1b >> [192173.364503] XFS (md0): Corruption detected. Unmount and run xfs_repair >> >> That last line, by the way, is why I ran umount and xfs_repair. > > Right, that's the correct thing to do, but sometimes there are > issues that repair doesn't handle properly. This *was* one of them, > and it was fixed by commit e1f43b4 ("repair: update extent count > after zapping duplicate blocks") which was added to xfs_repair > v3.1.8. > > IOWs, upgrading xfsprogs to the latest release and re-running > xfs_repair should fix this error. OK. I'll scarf the source and compile. All I need is to git clone git://oss.sgi.com/xfs/xfs and git://oss.sgi.com/xfs/cmds/xfsprogs, right? I've never used git on a package maintained in my distro. Will I have issues when I upgrade to Debian Jessie in a few months, since this is not being managed by apt / dpkg? It looks like Jessie has 3.2.1 of xfs-progs. From david@fromorbit.com Tue Sep 9 22:33:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 0E08A7F58 for ; Tue, 9 Sep 2014 22:33:38 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id EE7388F8054 for ; Tue, 9 Sep 2014 20:33:37 -0700 (PDT) X-ASG-Debug-ID: 1410320015-04cbb05487c45210001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id e2tt3AUnHdBBitGS for ; Tue, 09 Sep 2014 20:33:35 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AnQ/AP7FD1R5LKYhPGdsb2JhbAA/GoMNU1eCLK5fBpkWgVmFaQICAQEBgQgXBQEBAQE4N4QDAQEEATocIwULCAMOCgklDwUlAwcaE4g6Bw42vFEBFxiFZIhmAyZCB4MvgR0FlXGHAZkiKy8BgQeBRwEBAQ Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail05.adl6.internode.on.net with ESMTP; 10 Sep 2014 13:03:34 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XRYex-0007Fa-Nj; Wed, 10 Sep 2014 13:33:31 +1000 Date: Wed, 10 Sep 2014 13:33:31 +1000 From: Dave Chinner To: Leslie Rhorer Cc: xfs@oss.sgi.com Subject: Re: Corrupted files Message-ID: <20140910033331.GA27048@dastard> X-ASG-Orig-Subj: Re: Corrupted files References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> <540FA586.9090308@mygrande.net> <20140910015331.GJ20518@dastard> <540FC135.8010601@mygrande.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <540FC135.8010601@mygrande.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1410320015 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9330 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 On Tue, Sep 09, 2014 at 10:10:45PM -0500, Leslie Rhorer wrote: > On 9/9/2014 8:53 PM, Dave Chinner wrote: > >On Tue, Sep 09, 2014 at 08:12:38PM -0500, Leslie Rhorer wrote: > >>On 9/9/2014 5:06 PM, Dave Chinner wrote: > >>>Fristly, more infomration is required, namely versions and actual > >>>error messages: > >> > >> Indubitably: > >> > >>RAID-Server:/# xfs_repair -V > >>xfs_repair version 3.1.7 > >>RAID-Server:/# uname -r > >>3.2.0-4-amd64 > > > >Ok, so a relatively old xfs_repair. That's important - read on.... > > OK, a good reason is a good reason. > > >>4.0 GHz FX-8350 eight core processor > >> > >>RAID-Server:/# cat /proc/meminfo /proc/mounts /proc/partitions > >>MemTotal: 8099916 kB > >.... > >>/dev/md0 /RAID xfs > >>rw,relatime,attr2,delaylog,sunit=2048,swidth=12288,noquota 0 0 > > > >FWIW, you don't need sunit=2048,swidth=12288 in the mount options - > >they are stored on disk and the mount options are only necessray to > >change the on-disk values. > > They aren't. Those were created automatically, weather at creation > time or at mount time, I don't know, but the filesystem was created > with Ah, my mistake. Normally it's only mount options in that code - I forgot that we report sunit/swidth unconditionally if it is set in the superblock. > >> I'm not sure what is meant by "write cache status" in this context. > >>The machine has been rebooted more than once during recovery and the > >>FS has been umounted and xfs_repair run several times. > > > >Start here and read the next few entries: > > > >http://xfs.org/index.php/XFS_FAQ#Q:_What_is_the_problem_with_the_write_cache_on_journaled_filesystems.3F > > I knew that, but I still don't see the relevance in this context. > There is no battery backup on the drive controller or the drives, > and the drives have all been powered down and back up several times. > Anything in any cache right now would be from some operation in the > last few minutes, not four days ago. There is no direct relevance to your situation, but for a lot of other common problems it definitely is. That's why we ask people to report it with all the other information about their system > >> I don't know for what the acronym BBWC stands. > > > >"battery backed write cache". If you're not using a hardware RAID > >controller, it's unlikely you have one. > > See my previous. I do have one (a 3Ware 9650E, given to me by a > friend when his company switched to zfs for their server). It's not > on this system. This array is on a HighPoint RocketRAID 2722. Ok. We have seen over time that those 3ware controllers can do strange things in error conditions - we've had reports of entire hardware luns dying and being completely unrecoverable after a disk was kicked out due to an error. I can't comment on the highpoint controller - either not many people use them or they just don't report problems if there do. Either way, I'd suggest that if you aren't running the latest firmware it would be to update them as these problems were typically fixed by newer firmware releases. > >>[192173.364460] [] ? vfs_fstatat+0x32/0x60 > >>[192173.364471] [] ? sys_newstat+0x12/0x2b > >>[192173.364483] [] ? page_fault+0x25/0x30 > >>[192173.364495] [] ? system_call_fastpath+0x16/0x1b > >>[192173.364503] XFS (md0): Corruption detected. Unmount and run xfs_repair > >> > >> That last line, by the way, is why I ran umount and xfs_repair. > > > >Right, that's the correct thing to do, but sometimes there are > >issues that repair doesn't handle properly. This *was* one of them, > >and it was fixed by commit e1f43b4 ("repair: update extent count > >after zapping duplicate blocks") which was added to xfs_repair > >v3.1.8. > > > >IOWs, upgrading xfsprogs to the latest release and re-running > >xfs_repair should fix this error. > > OK. I'll scarf the source and compile. All I need is to git clone > git://oss.sgi.com/xfs/xfs and git://oss.sgi.com/xfs/cmds/xfsprogs, > right? Just clone git://oss.sgi.com/xfs/cmds/xfsprogs and check out the v3.2.1 tag and build that.. > I've never used git on a package maintained in my distro. Will I > have issues when I upgrade to Debian Jessie in a few months, since > this is not being managed by apt / dpkg? It looks like Jessie has > 3.2.1 of xfs-progs. If you're using debian you can build debian packages directly from the git tree via "make deb" (I use it all the time for pushing new builds to my test machines) and so when you upgrade to Jessie it should just replace your custom built package correctly... Cheers, Dave. -- Dave Chinner david@fromorbit.com From lrhorer@mygrande.net Tue Sep 9 23:16:01 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 4A2D97F6C for ; Tue, 9 Sep 2014 23:16:01 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id BE36FAC003 for ; Tue, 9 Sep 2014 21:15:57 -0700 (PDT) X-ASG-Debug-ID: 1410322555-04cb6c54ff9639d0001-NocioJ Received: from mail04.lsn.net (mail04.lsn.net [66.90.130.138]) by cuda.sgi.com with ESMTP id nA0NYnjeNNmOgxFD for ; Tue, 09 Sep 2014 21:15:55 -0700 (PDT) X-Barracuda-Envelope-From: lrhorer@mygrande.net X-Barracuda-Apparent-Source-IP: 66.90.130.138 Received: from [192.168.1.121] (24-155-170-173.dyn.grandenetworks.net [24.155.170.173]) (authenticated bits=0) by mail04.lsn.net (8.14.4/8.13.6) with ESMTP id s8A4EnYG000932 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Tue, 9 Sep 2014 23:14:49 -0500 X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.98.4 at av01.lsn.net Message-ID: <540FD038.5010202@mygrande.net> Date: Tue, 09 Sep 2014 23:14:48 -0500 From: Leslie Rhorer User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com Subject: Re: Corrupted files References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> <540FA586.9090308@mygrande.net> <20140910015331.GJ20518@dastard> <540FC135.8010601@mygrande.net> <20140910033331.GA27048@dastard> X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: <20140910033331.GA27048@dastard> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail04.lsn.net[66.90.130.138] X-Barracuda-Start-Time: 1410322555 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9330 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/9/2014 10:33 PM, Dave Chinner wrote: > There is no direct relevance to your situation, but for a lot of > other common problems it definitely is. That's why we ask people to > report it with all the other information about their system Yeah, understood. > Ok. We have seen over time that those 3ware controllers can do > strange things in error conditions - we've had reports of entire > hardware luns dying and being completely unrecoverable after a > disk was kicked out due to an error. Oof. That's not good. It's stable right now. I'm considering a different controller at some point. I may accelerate that process. > I can't comment on the > highpoint controller - either not many people use them or they just > don't report problems if there do. Either way, I'd suggest that if > you aren't running the latest firmware it would be to update them > as these problems were typically fixed by newer firmware releases. As a matter of fact, I was going to do just that. I have to reboot the system in DOS (of all things), since they don't have a linux loader. I've got to arrange a convenient time. >> OK. I'll scarf the source and compile. All I need is to git clone >> git://oss.sgi.com/xfs/xfs and git://oss.sgi.com/xfs/cmds/xfsprogs, >> right? > > Just clone git://oss.sgi.com/xfs/cmds/xfsprogs and check out the > v3.2.1 tag and build that.. OK, I'm doing something wrong, I think. It's been over a decade since I compiled a kernel. It makes me a little nervous. > >> I've never used git on a package maintained in my distro. Will I >> have issues when I upgrade to Debian Jessie in a few months, since >> this is not being managed by apt / dpkg? It looks like Jessie has >> 3.2.1 of xfs-progs. > > If you're using debian you can build debian packages directly from > the git tree via "make deb" (I use it all the time for pushing Um, is that make deb-pkg, perhaps? I'm not seeing a "deb" in the package targets. > new builds to my test machines) and so when you upgrade to Jessie it > should just replace your custom built package correctly... `make deb` finds no install target. If I run `make menuconfig` it complains about there being no ncurses. Libncurses5 is installed, and I don't know what else I should get. `make oldconfig` seems to work. Am I headed the right direction? There are quite a few configuration targets, and I am not sure which one to choose. There are also a number of questions asked by the oldconfig target (and presumably the same for other config targets), and I'm unsure how to answer. I definitely don't want to make an error and potentially wind up with an unbootable system. From lrhorer@mygrande.net Tue Sep 9 23:23:10 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 000F17F72 for ; Tue, 9 Sep 2014 23:23:09 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id E27D0304059 for ; Tue, 9 Sep 2014 21:23:06 -0700 (PDT) X-ASG-Debug-ID: 1410322985-04cbb05488c51cd0001-NocioJ Received: from mail02.lsn.net (mail02.lsn.net [66.90.130.128]) by cuda.sgi.com with ESMTP id gwWfYmm5MJQHB7Qy for ; Tue, 09 Sep 2014 21:23:05 -0700 (PDT) X-Barracuda-Envelope-From: lrhorer@mygrande.net X-Barracuda-Apparent-Source-IP: 66.90.130.128 Received: from [192.168.1.121] (24-155-170-173.dyn.grandenetworks.net [24.155.170.173]) (authenticated bits=0) by mail02.lsn.net (8.14.4/8.13.6) with ESMTP id s8A4M3G4029409 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Tue, 9 Sep 2014 23:22:04 -0500 X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.98.4 at av01.lsn.net Message-ID: <540FD1EB.8070007@mygrande.net> Date: Tue, 09 Sep 2014 23:22:03 -0500 From: Leslie Rhorer User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com Subject: Re: Corrupted files References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> <540FA586.9090308@mygrande.net> <20140910015331.GJ20518@dastard> <540FC135.8010601@mygrande.net> <20140910033331.GA27048@dastard> <540FD038.5010202@mygrande.net> X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: <540FD038.5010202@mygrande.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail02.lsn.net[66.90.130.128] X-Barracuda-Start-Time: 1410322985 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9331 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- >>> OK. I'll scarf the source and compile. All I need is to git clone >>> git://oss.sgi.com/xfs/xfs and git://oss.sgi.com/xfs/cmds/xfsprogs, >>> right? >> >> Just clone git://oss.sgi.com/xfs/cmds/xfsprogs and check out the >> v3.2.1 tag and build that.. Oops! Hold on. I didn't read that closely enough. You were saying I only need to compile xfs-progs. That's working. From lrhorer@mygrande.net Tue Sep 9 23:52:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id BC69C7F74 for ; Tue, 9 Sep 2014 23:52:45 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id A1812304048 for ; Tue, 9 Sep 2014 21:52:45 -0700 (PDT) X-ASG-Debug-ID: 1410324764-04cb6c54fe96a410001-NocioJ Received: from mail04.lsn.net (mail04.lsn.net [66.90.130.138]) by cuda.sgi.com with ESMTP id 6mhRhkldaBDl6Suh for ; Tue, 09 Sep 2014 21:52:44 -0700 (PDT) X-Barracuda-Envelope-From: lrhorer@mygrande.net X-Barracuda-Apparent-Source-IP: 66.90.130.138 Received: from [192.168.1.121] (24-155-170-173.dyn.grandenetworks.net [24.155.170.173]) (authenticated bits=0) by mail04.lsn.net (8.14.4/8.13.6) with ESMTP id s8A4pgUs017045 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Tue, 9 Sep 2014 23:51:43 -0500 X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.98.4 at av02.lsn.net Message-ID: <540FD8DE.7090306@mygrande.net> Date: Tue, 09 Sep 2014 23:51:42 -0500 From: Leslie Rhorer User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com Subject: Re: Corrupted files References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> <540FA586.9090308@mygrande.net> <20140910015331.GJ20518@dastard> <540FC135.8010601@mygrande.net> <20140910033331.GA27048@dastard> X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: <20140910033331.GA27048@dastard> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail04.lsn.net[66.90.130.138] X-Barracuda-Start-Time: 1410324764 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9331 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 On 9/9/2014 10:33 PM, Dave Chinner wrote: > On Tue, Sep 09, 2014 at 10:10:45PM -0500, Leslie Rhorer wrote: >> On 9/9/2014 8:53 PM, Dave Chinner wrote: >>> On Tue, Sep 09, 2014 at 08:12:38PM -0500, Leslie Rhorer wrote: >>>> On 9/9/2014 5:06 PM, Dave Chinner wrote: >>>>> Fristly, more infomration is required, namely versions and actual >>>>> error messages: >>>> >>>> Indubitably: >>>> >>>> RAID-Server:/# xfs_repair -V >>>> xfs_repair version 3.1.7 >>>> RAID-Server:/# uname -r >>>> 3.2.0-4-amd64 >>> >>> Ok, so a relatively old xfs_repair. That's important - read on.... >> >> OK, a good reason is a good reason. >> >>>> 4.0 GHz FX-8350 eight core processor >>>> >>>> RAID-Server:/# cat /proc/meminfo /proc/mounts /proc/partitions >>>> MemTotal: 8099916 kB >>> .... >>>> /dev/md0 /RAID xfs >>>> rw,relatime,attr2,delaylog,sunit=2048,swidth=12288,noquota 0 0 >>> >>> FWIW, you don't need sunit=2048,swidth=12288 in the mount options - >>> they are stored on disk and the mount options are only necessray to >>> change the on-disk values. >> >> They aren't. Those were created automatically, weather at creation >> time or at mount time, I don't know, but the filesystem was created >> with > > Ah, my mistake. Normally it's only mount options in that code - I > forgot that we report sunit/swidth unconditionally if it is set in > the superblock. > >>>> I'm not sure what is meant by "write cache status" in this context. >>>> The machine has been rebooted more than once during recovery and the >>>> FS has been umounted and xfs_repair run several times. >>> >>> Start here and read the next few entries: >>> >>> http://xfs.org/index.php/XFS_FAQ#Q:_What_is_the_problem_with_the_write_cache_on_journaled_filesystems.3F >> >> I knew that, but I still don't see the relevance in this context. >> There is no battery backup on the drive controller or the drives, >> and the drives have all been powered down and back up several times. >> Anything in any cache right now would be from some operation in the >> last few minutes, not four days ago. > > There is no direct relevance to your situation, but for a lot of > other common problems it definitely is. That's why we ask people to > report it with all the other information about their system > >>>> I don't know for what the acronym BBWC stands. >>> >>> "battery backed write cache". If you're not using a hardware RAID >>> controller, it's unlikely you have one. >> >> See my previous. I do have one (a 3Ware 9650E, given to me by a >> friend when his company switched to zfs for their server). It's not >> on this system. This array is on a HighPoint RocketRAID 2722. > > Ok. We have seen over time that those 3ware controllers can do > strange things in error conditions - we've had reports of entire > hardware luns dying and being completely unrecoverable after a > disk was kicked out due to an error. I can't comment on the > highpoint controller - either not many people use them or they just > don't report problems if there do. Either way, I'd suggest that if > you aren't running the latest firmware it would be to update them > as these problems were typically fixed by newer firmware releases. > >>>> [192173.364460] [] ? vfs_fstatat+0x32/0x60 >>>> [192173.364471] [] ? sys_newstat+0x12/0x2b >>>> [192173.364483] [] ? page_fault+0x25/0x30 >>>> [192173.364495] [] ? system_call_fastpath+0x16/0x1b >>>> [192173.364503] XFS (md0): Corruption detected. Unmount and run xfs_repair >>>> >>>> That last line, by the way, is why I ran umount and xfs_repair. >>> >>> Right, that's the correct thing to do, but sometimes there are >>> issues that repair doesn't handle properly. This *was* one of them, >>> and it was fixed by commit e1f43b4 ("repair: update extent count >>> after zapping duplicate blocks") which was added to xfs_repair >>> v3.1.8. >>> >>> IOWs, upgrading xfsprogs to the latest release and re-running >>> xfs_repair should fix this error. >> >> OK. I'll scarf the source and compile. All I need is to git clone >> git://oss.sgi.com/xfs/xfs and git://oss.sgi.com/xfs/cmds/xfsprogs, >> right? > > Just clone git://oss.sgi.com/xfs/cmds/xfsprogs and check out the > v3.2.1 tag and build that.. > >> I've never used git on a package maintained in my distro. Will I >> have issues when I upgrade to Debian Jessie in a few months, since >> this is not being managed by apt / dpkg? It looks like Jessie has >> 3.2.1 of xfs-progs. > > If you're using debian you can build debian packages directly from > the git tree via "make deb" (I use it all the time for pushing > new builds to my test machines) and so when you upgrade to Jessie it > should just replace your custom built package correctly... > > Cheers, > > Dave. Thanks a ton, Dave (and everyone else who helped). That seems to have worked just fine. The three grunged entries are gone and the system is happily copying over the backups. Now I'll run another rsync with checksum to make sure everything is good before putting the backup into production. I'm also going to upgrade the controller BIOS just in case. From sandeen@sandeen.net Wed Sep 10 00:09:09 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 0DBE37F76 for ; Wed, 10 Sep 2014 00:09:09 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id EEF168F8050 for ; Tue, 9 Sep 2014 22:09:05 -0700 (PDT) X-ASG-Debug-ID: 1410325744-04cb6c550096ab30001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id mKRpVCd9jK4dYaqu for ; Tue, 09 Sep 2014 22:09:04 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 3C96765A2CE6; Wed, 10 Sep 2014 00:09:04 -0500 (CDT) Message-ID: <540FDCF4.3020202@sandeen.net> Date: Wed, 10 Sep 2014 00:09:08 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Sean Caron CC: Leslie Rhorer , "xfs@oss.sgi.com" Subject: Re: Corrupted files References: <540F1B01.3020700@mygrande.net> <540F7E37.7020500@sandeen.net> X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410325744 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9331 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/9/14 5:57 PM, Sean Caron wrote: > Hey, just sharing some hard-won (believe me) professional experience. > I have seen xfs_repair take a bad situation and make it worse many > times. I don't know that a filesystem fuzzer or any other simulation > can ever provide true simulation of users absolutely pounding the tar > out of a system. There seems to be a real disconnect between what > developers are able to test and observe directly, and what happens in > the production environment in a very high-throughput environment. > > Best, > > Sean Fair enough, but I don't want to let stand an assertion that you should avoid xfs_repair at all (most) costs. It, like almost any software, has some bugs, but they don't get fixed if they don't get well reported. We do our best to improve it when we get useful reports from users - usually including a metadata dump - and we beat on it as best we can in the lab. "pounding the tar out of a filesystem" should not, in general, require an xfs_repair run. ;) Yes, it's always good advice to do a dry run before committing to a repair, in case something goes off the rails. But most times I've seen things go very very badly was when the storage device under the filesystem was no longer consistent, and the filesystem really had no pieces to pick up. -Eric From david@fromorbit.com Wed Sep 10 00:23:31 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 527467F78 for ; Wed, 10 Sep 2014 00:23:31 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id D4C52AC006 for ; Tue, 9 Sep 2014 22:23:30 -0700 (PDT) X-ASG-Debug-ID: 1410326604-04cbb05487c5ba10001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id FXizr3gR03iks0cK for ; Tue, 09 Sep 2014 22:23:25 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtYlAMffD1R5LKYhPGdsb2JhbABZgw2BKoIsrn8Gmm+FaQQCAYEJFwUBAQEBODeEBAEFOhwjEAgDDgoJJQ8FJQMHGhOIQb0yARcYhWSIZmsHgy+BHQWccpkiKy+CTwEBAQ Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail05.adl6.internode.on.net with ESMTP; 10 Sep 2014 14:53:05 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XRaMx-0007Xa-Bz; Wed, 10 Sep 2014 15:23:03 +1000 Date: Wed, 10 Sep 2014 15:23:03 +1000 From: Dave Chinner To: Leslie Rhorer Cc: xfs@oss.sgi.com Subject: Re: Corrupted files Message-ID: <20140910052303.GB27048@dastard> X-ASG-Orig-Subj: Re: Corrupted files References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> <540FA586.9090308@mygrande.net> <20140910015331.GJ20518@dastard> <540FC135.8010601@mygrande.net> <20140910033331.GA27048@dastard> <540FD8DE.7090306@mygrande.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <540FD8DE.7090306@mygrande.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1410326604 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9332 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Sep 09, 2014 at 11:51:42PM -0500, Leslie Rhorer wrote: > On 9/9/2014 10:33 PM, Dave Chinner wrote: > >On Tue, Sep 09, 2014 at 10:10:45PM -0500, Leslie Rhorer wrote: > >>On 9/9/2014 8:53 PM, Dave Chinner wrote: > >>>On Tue, Sep 09, 2014 at 08:12:38PM -0500, Leslie Rhorer wrote: > >>>>On 9/9/2014 5:06 PM, Dave Chinner wrote: > >> I've never used git on a package maintained in my distro. Will I > >>have issues when I upgrade to Debian Jessie in a few months, since > >>this is not being managed by apt / dpkg? It looks like Jessie has > >>3.2.1 of xfs-progs. > > > >If you're using debian you can build debian packages directly from > >the git tree via "make deb" (I use it all the time for pushing > >new builds to my test machines) and so when you upgrade to Jessie it > >should just replace your custom built package correctly... > > Thanks a ton, Dave (and everyone else who helped). That seems to > have worked just fine. The three grunged entries are gone and the > system is happily copying over the backups. Now I'll run another > rsync with checksum to make sure everything is good before putting > the backup into production. I'm also going to upgrade the > controller BIOS just in case. Good to hear. Hopefully everything will check out. Just yell if you need more help. ;) Cheers, Dave. -- Dave Chinner david@fromorbit.com From denoy.steve32@gmail.com Wed Sep 10 03:04:43 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.3 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id A4D807F3F for ; Wed, 10 Sep 2014 03:04:43 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 92A9C8F8059 for ; Wed, 10 Sep 2014 01:04:40 -0700 (PDT) X-ASG-Debug-ID: 1410336277-04cb6c54fd9788b0001-NocioJ Received: from mwork.nabble.com (static.162.253.133.43.macminivault.com [162.253.133.43]) by cuda.sgi.com with ESMTP id N0jyuMJkYBgNxNro for ; Wed, 10 Sep 2014 01:04:38 -0700 (PDT) X-Barracuda-Envelope-From: denoy.steve32@gmail.com X-Barracuda-Apparent-Source-IP: 162.253.133.43 Received: from mtom.nabble.com (unknown [162.253.133.81]) by mwork.nabble.com (Postfix) with ESMTP id 3E5A7550B66 for ; Wed, 10 Sep 2014 01:04:36 -0700 (PDT) Date: Wed, 10 Sep 2014 01:03:54 -0700 (MST) From: jame87 To: xfs@oss.sgi.com Message-ID: <1410336234315-35025.post@n7.nabble.com> In-Reply-To: References: Subject: =?UTF-8?Q?Re:_VIETNAM_Acquiring_Business?= =?UTF-8?Q?_=E2=80=93_Legal_and_Tax_Considerations?= MIME-Version: 1.0 X-ASG-Orig-Subj: =?UTF-8?Q?Re:_VIETNAM_Acquiring_Business?= =?UTF-8?Q?_=E2=80=93_Legal_and_Tax_Considerations?= Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Barracuda-Connect: static.162.253.133.43.macminivault.com[162.253.133.43] X-Barracuda-Start-Time: 1410336277 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-BRTS-Evidence: lawbrokers.com.au X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9334 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- I would be interested in acquiring law firms for sale in Vietnam but the idea of the complicated regulatory framework for acquisitions is holding me back. The government should make the process easier. -- View this message in context: http://xfs.9218.n7.nabble.com/VIETNAM-Acquiring-Business-Legal-and-Tax-Considerations-tp18168p35025.html Sent from the Xfs - General mailing list archive at Nabble.com. From bfoster@redhat.com Wed Sep 10 08:20:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 3B8F57F3F for ; Wed, 10 Sep 2014 08:20:37 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 2A7178F8049 for ; Wed, 10 Sep 2014 06:20:34 -0700 (PDT) X-ASG-Debug-ID: 1410355232-04cb6c54fe990130001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id dlzHwzyg3drpMDqF (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 10 Sep 2014 06:20:33 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8ADKWDw030987 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Wed, 10 Sep 2014 09:20:32 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8ADKWga009670 for ; Wed, 10 Sep 2014 09:20:32 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 5159E1256F8; Wed, 10 Sep 2014 09:20:31 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH v2 0/5] clean up collapse range and handle post-eof delalloc Date: Wed, 10 Sep 2014 09:20:26 -0400 X-ASG-Orig-Subj: [PATCH v2 0/5] clean up collapse range and handle post-eof delalloc Message-Id: <1410355231-50495-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410355233 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Hi all, Here's v2 of the collapse clean up. We refactor a bit more via the insertion of patch 3, otherwise it's similar to v1. This will see some continued testing, but it survived ~500m fsx operations overnight. Brian v2: - Rename helpers to xfs_bmse_*() scheme. - Rearrange logic and minor cleanups to xfs_bmse[_can]_merge(). - Inserted patch 3 to further refactor xfs_bmap_shift_extents() into xfs_bmse_shift_one(). - Return corruption error rather than BUG_ON() in patch 4 and detect error in new helper. v1: http://oss.sgi.com/archives/xfs/2014-09/msg00061.html - Retain the eofblocks trim and writeback/inval. the range of shifted data only. - Added the xfs_free_file_space() patch to no longer writeback the entire file. rfc: http://oss.sgi.com/archives/xfs/2014-08/msg00462.html Brian Foster (5): xfs: track collapse via file offset rather than extent index xfs: refactor shift-by-merge into xfs_bmse_merge() helper xfs: refactor single extent shift into xfs_bmse_shift_one() helper xfs: writeback and inval. file range to be shifted by collapse xfs: only writeback and truncate pages for the freed range fs/xfs/libxfs/xfs_bmap.c | 365 +++++++++++++++++++++++++++++++---------------- fs/xfs/libxfs/xfs_bmap.h | 7 +- fs/xfs/xfs_bmap_util.c | 54 ++++--- 3 files changed, 275 insertions(+), 151 deletions(-) -- 1.8.3.1 From bfoster@redhat.com Wed Sep 10 08:20:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 810347F47 for ; Wed, 10 Sep 2014 08:20:37 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 615BC304051 for ; Wed, 10 Sep 2014 06:20:34 -0700 (PDT) X-ASG-Debug-ID: 1410355233-04cb6c54fd990130001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id MLTUfng196Ptn2Es (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 10 Sep 2014 06:20:33 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8ADKW1n030574 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Wed, 10 Sep 2014 09:20:32 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8ADKWPr014730 for ; Wed, 10 Sep 2014 09:20:32 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 799191256FA; Wed, 10 Sep 2014 09:20:31 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH v2 4/5] xfs: writeback and inval. file range to be shifted by collapse Date: Wed, 10 Sep 2014 09:20:30 -0400 X-ASG-Orig-Subj: [PATCH v2 4/5] xfs: writeback and inval. file range to be shifted by collapse Message-Id: <1410355231-50495-5-git-send-email-bfoster@redhat.com> In-Reply-To: <1410355231-50495-1-git-send-email-bfoster@redhat.com> References: <1410355231-50495-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410355233 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The collapse range operation currently writes the entire file before starting the collapse to avoid changes in the in-core extent list due to writeback causing the extent count to change. Now that collapse range is fsb based rather than extent index based it can sustain changes in the extent list during the shift sequence without disruption. Modify xfs_collapse_file_space() to writeback and invalidate pages associated with the range of the file to be shifted. xfs_free_file_space() currently has similar behavior, but the space free need only affect the region of the file that is freed and this could change in the future. Also update the comments to reflect the current implementation. We retain the eofblocks trim permanently as a best option for dealing with delalloc extents. We don't shift delalloc extents because this scenario only occurs with post-eof preallocation (since data must be flushed such that the cache can be invalidated and data can be shifted). That means said space must also be initialized before being shifted into the accessible region of the file only to be immediately truncated off as the last part of the collapse. In other words, the eofblocks trim will happen anyways, we just run it first to ensure the file remains in a consistent state throughout the collapse. Finally, detect and fail explicitly in the event of a delalloc extent during the extent shift. The implementation does not support delalloc extents and the caller is expected to prevent this scenario in advance as is done by collapse. Signed-off-by: Brian Foster --- fs/xfs/libxfs/xfs_bmap.c | 4 ++++ fs/xfs/xfs_bmap_util.c | 32 +++++++++++++++++++------------- 2 files changed, 23 insertions(+), 13 deletions(-) diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 69bf8d8..79c9819 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -5543,6 +5543,10 @@ xfs_bmse_shift_one( xfs_bmbt_get_all(gotp, &got); startoff = got.br_startoff - offset_shift_fsb; + /* delalloc extents should be prevented by caller */ + XFS_WANT_CORRUPTED_GOTO(!isnullstartblock(got.br_startblock), + out_error); + /* * If this is the first extent in the file, make sure there's enough * room at the start of the file and jump right to the shift as there's diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index 1e96d77..eae763f 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1470,27 +1470,33 @@ xfs_collapse_file_space( next_fsb = XFS_B_TO_FSB(mp, offset + len); shift_fsb = XFS_B_TO_FSB(mp, len); - /* - * Writeback the entire file and force remove any post-eof blocks. The - * writeback prevents changes to the extent list via concurrent - * writeback and the eofblocks trim prevents the extent shift algorithm - * from running into a post-eof delalloc extent. - * - * XXX: This is a temporary fix until the extent shift loop below is - * converted to use offsets and lookups within the ILOCK rather than - * carrying around the index into the extent list for the next - * iteration. - */ - error = filemap_write_and_wait(VFS_I(ip)->i_mapping); + error = xfs_free_file_space(ip, offset, len); if (error) return error; + + /* + * Trim eofblocks to avoid shifting uninitialized post-eof preallocation + * into the accessible region of the file. + */ if (xfs_can_free_eofblocks(ip, true)) { error = xfs_free_eofblocks(mp, ip, false); if (error) return error; } - error = xfs_free_file_space(ip, offset, len); + /* + * Writeback and invalidate cache for the remainder of the file as we're + * about to shift down every extent from the collapse range to EOF. The + * free of the collapse range above might have already done some of + * this, but we shouldn't rely on it to do anything outside of the range + * that was freed. + */ + error = filemap_write_and_wait_range(VFS_I(ip)->i_mapping, + offset + len, -1); + if (error) + return error; + error = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, + (offset + len) >> PAGE_CACHE_SHIFT, -1); if (error) return error; -- 1.8.3.1 From bfoster@redhat.com Wed Sep 10 08:20:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id A1BDB7F50 for ; Wed, 10 Sep 2014 08:20:37 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 736EF304053 for ; Wed, 10 Sep 2014 06:20:34 -0700 (PDT) X-ASG-Debug-ID: 1410355232-04bdf0109a934640001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id N9uQdvPMyHNeDF5Z (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 10 Sep 2014 06:20:33 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8ADKWxQ030991 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Wed, 10 Sep 2014 09:20:32 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8ADKW38015979 for ; Wed, 10 Sep 2014 09:20:32 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 6D0721256FB; Wed, 10 Sep 2014 09:20:31 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH v2 1/5] xfs: track collapse via file offset rather than extent index Date: Wed, 10 Sep 2014 09:20:27 -0400 X-ASG-Orig-Subj: [PATCH v2 1/5] xfs: track collapse via file offset rather than extent index Message-Id: <1410355231-50495-2-git-send-email-bfoster@redhat.com> In-Reply-To: <1410355231-50495-1-git-send-email-bfoster@redhat.com> References: <1410355231-50495-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410355233 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The collapse range implementation uses a transaction per extent shift. The progress of the overall operation is tracked via the current extent index of the in-core extent list. This is racy because the ilock must be dropped and reacquired for each transaction according to locking and log reservation rules. Therefore, writeback to prior regions of the file is possible and can change the extent count. This changes the extent to which the current index refers and causes the collapse to fail mid operation. To avoid this problem, the entire file is currently written back before the collapse operation starts. To eliminate the need to flush the entire file, use the file offset (fsb) to track the progress of the overall extent shift operation rather than the extent index. Modify xfs_bmap_shift_extents() to unconditionally convert the start_fsb parameter to an extent index and return the file offset of the extent where the shift left off, if further extents exist. The bulk of ths function can remain based on extent index as ilock is held by the caller. xfs_collapse_file_space() now uses the fsb output as the starting point for the subsequent shift. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner --- fs/xfs/libxfs/xfs_bmap.c | 85 +++++++++++++++++++++++++----------------------- fs/xfs/libxfs/xfs_bmap.h | 7 ++-- fs/xfs/xfs_bmap_util.c | 12 +++---- 3 files changed, 53 insertions(+), 51 deletions(-) diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 86df952..4b3f1b9 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -5406,20 +5406,21 @@ error0: /* * Shift extent records to the left to cover a hole. * - * The maximum number of extents to be shifted in a single operation - * is @num_exts, and @current_ext keeps track of the current extent - * index we have shifted. @offset_shift_fsb is the length by which each - * extent is shifted. If there is no hole to shift the extents - * into, this will be considered invalid operation and we abort immediately. + * The maximum number of extents to be shifted in a single operation is + * @num_exts. @start_fsb specifies the file offset to start the shift and the + * file offset where we've left off is returned in @next_fsb. @offset_shift_fsb + * is the length by which each extent is shifted. If there is no hole to shift + * the extents into, this will be considered invalid operation and we abort + * immediately. */ int xfs_bmap_shift_extents( struct xfs_trans *tp, struct xfs_inode *ip, - int *done, xfs_fileoff_t start_fsb, xfs_fileoff_t offset_shift_fsb, - xfs_extnum_t *current_ext, + int *done, + xfs_fileoff_t *next_fsb, xfs_fsblock_t *firstblock, struct xfs_bmap_free *flist, int num_exts) @@ -5431,6 +5432,7 @@ xfs_bmap_shift_extents( struct xfs_mount *mp = ip->i_mount; struct xfs_ifork *ifp; xfs_extnum_t nexts = 0; + xfs_extnum_t current_ext; xfs_fileoff_t startoff; int error = 0; int i; @@ -5451,7 +5453,8 @@ xfs_bmap_shift_extents( if (XFS_FORCED_SHUTDOWN(mp)) return -EIO; - ASSERT(current_ext != NULL); + ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL)); + ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); ifp = XFS_IFORK_PTR(ip, whichfork); if (!(ifp->if_flags & XFS_IFEXTENTS)) { @@ -5462,20 +5465,18 @@ xfs_bmap_shift_extents( } /* - * If *current_ext is 0, we would need to lookup the extent - * from where we would start shifting and store it in gotp. + * Look up the extent index for the fsb where we start shifting. We can + * henceforth iterate with current_ext as extent list changes are locked + * out via ilock. + * + * gotp can be null in 2 cases: 1) if there are no extents or 2) + * start_fsb lies in a hole beyond which there are no extents. Either + * way, we are done. */ - if (!*current_ext) { - gotp = xfs_iext_bno_to_ext(ifp, start_fsb, current_ext); - /* - * gotp can be null in 2 cases: 1) if there are no extents - * or 2) start_fsb lies in a hole beyond which there are - * no extents. Either way, we are done. - */ - if (!gotp) { - *done = 1; - return 0; - } + gotp = xfs_iext_bno_to_ext(ifp, start_fsb, ¤t_ext); + if (!gotp) { + *done = 1; + return 0; } if (ifp->if_flags & XFS_IFBROOT) { @@ -5487,36 +5488,32 @@ xfs_bmap_shift_extents( /* * There may be delalloc extents in the data fork before the range we - * are collapsing out, so we cannot - * use the count of real extents here. Instead we have to calculate it - * from the incore fork. + * are collapsing out, so we cannot use the count of real extents here. + * Instead we have to calculate it from the incore fork. */ total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); - while (nexts++ < num_exts && *current_ext < total_extents) { + while (nexts++ < num_exts && current_ext < total_extents) { - gotp = xfs_iext_get_ext(ifp, *current_ext); + gotp = xfs_iext_get_ext(ifp, current_ext); xfs_bmbt_get_all(gotp, &got); startoff = got.br_startoff - offset_shift_fsb; /* - * Before shifting extent into hole, make sure that the hole - * is large enough to accomodate the shift. + * Before shifting extent into hole, make sure that the hole is + * large enough to accommodate the shift. */ - if (*current_ext) { - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, - *current_ext - 1), &left); - + if (current_ext > 0) { + xfs_bmbt_get_all(xfs_iext_get_ext(ifp, current_ext - 1), + &left); if (startoff < left.br_startoff + left.br_blockcount) error = -EINVAL; } else if (offset_shift_fsb > got.br_startoff) { /* - * When first extent is shifted, offset_shift_fsb - * should be less than the stating offset of - * the first extent. + * When first extent is shifted, offset_shift_fsb should + * be less than the stating offset of the first extent. */ error = -EINVAL; } - if (error) goto del_cursor; @@ -5531,7 +5528,7 @@ xfs_bmap_shift_extents( } /* Check if we can merge 2 adjacent extents */ - if (*current_ext && + if (current_ext && left.br_startoff + left.br_blockcount == startoff && left.br_startblock + left.br_blockcount == got.br_startblock && @@ -5539,7 +5536,7 @@ xfs_bmap_shift_extents( left.br_blockcount + got.br_blockcount <= MAXEXTLEN) { blockcount = left.br_blockcount + got.br_blockcount; - xfs_iext_remove(ip, *current_ext, 1, 0); + xfs_iext_remove(ip, current_ext, 1, 0); logflags |= XFS_ILOG_CORE; if (cur) { error = xfs_btree_delete(cur, &i); @@ -5551,7 +5548,7 @@ xfs_bmap_shift_extents( } XFS_IFORK_NEXT_SET(ip, whichfork, XFS_IFORK_NEXTENTS(ip, whichfork) - 1); - gotp = xfs_iext_get_ext(ifp, --*current_ext); + gotp = xfs_iext_get_ext(ifp, --current_ext); xfs_bmbt_get_all(gotp, &got); /* Make cursor point to the extent we will update */ @@ -5585,13 +5582,18 @@ xfs_bmap_shift_extents( logflags |= XFS_ILOG_DEXT; } - (*current_ext)++; + current_ext++; total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); } /* Check if we are done */ - if (*current_ext == total_extents) + if (current_ext == total_extents) *done = 1; + else if (next_fsb) { + gotp = xfs_iext_get_ext(ifp, current_ext); + xfs_bmbt_get_all(gotp, &got); + *next_fsb = got.br_startoff; + } del_cursor: if (cur) @@ -5600,5 +5602,6 @@ del_cursor: if (logflags) xfs_trans_log_inode(tp, ip, logflags); + return error; } diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h index b879ca5..44db6db 100644 --- a/fs/xfs/libxfs/xfs_bmap.h +++ b/fs/xfs/libxfs/xfs_bmap.h @@ -178,9 +178,8 @@ int xfs_check_nostate_extents(struct xfs_ifork *ifp, xfs_extnum_t idx, xfs_extnum_t num); uint xfs_default_attroffset(struct xfs_inode *ip); int xfs_bmap_shift_extents(struct xfs_trans *tp, struct xfs_inode *ip, - int *done, xfs_fileoff_t start_fsb, - xfs_fileoff_t offset_shift_fsb, xfs_extnum_t *current_ext, - xfs_fsblock_t *firstblock, struct xfs_bmap_free *flist, - int num_exts); + xfs_fileoff_t start_fsb, xfs_fileoff_t offset_shift_fsb, + int *done, xfs_fileoff_t *next_fsb, xfs_fsblock_t *firstblock, + struct xfs_bmap_free *flist, int num_exts); #endif /* __XFS_BMAP_H__ */ diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index 1707980..1e96d77 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1456,18 +1456,18 @@ xfs_collapse_file_space( struct xfs_mount *mp = ip->i_mount; struct xfs_trans *tp; int error; - xfs_extnum_t current_ext = 0; struct xfs_bmap_free free_list; xfs_fsblock_t first_block; int committed; xfs_fileoff_t start_fsb; + xfs_fileoff_t next_fsb; xfs_fileoff_t shift_fsb; ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL)); trace_xfs_collapse_file_space(ip); - start_fsb = XFS_B_TO_FSB(mp, offset + len); + next_fsb = XFS_B_TO_FSB(mp, offset + len); shift_fsb = XFS_B_TO_FSB(mp, len); /* @@ -1525,10 +1525,10 @@ xfs_collapse_file_space( * We are using the write transaction in which max 2 bmbt * updates are allowed */ - error = xfs_bmap_shift_extents(tp, ip, &done, start_fsb, - shift_fsb, ¤t_ext, - &first_block, &free_list, - XFS_BMAP_MAX_SHIFT_EXTENTS); + start_fsb = next_fsb; + error = xfs_bmap_shift_extents(tp, ip, start_fsb, shift_fsb, + &done, &next_fsb, &first_block, &free_list, + XFS_BMAP_MAX_SHIFT_EXTENTS); if (error) goto out; -- 1.8.3.1 From bfoster@redhat.com Wed Sep 10 08:20:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 8F1DC7F4E for ; Wed, 10 Sep 2014 08:20:37 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 60E15304032 for ; Wed, 10 Sep 2014 06:20:34 -0700 (PDT) X-ASG-Debug-ID: 1410355233-04bdf010a1934650001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id jJAg7RLnwAh4Lcrf (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 10 Sep 2014 06:20:33 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8ADKX0X030578 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Wed, 10 Sep 2014 09:20:33 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8ADKWYY014743 for ; Wed, 10 Sep 2014 09:20:32 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 927D0125701; Wed, 10 Sep 2014 09:20:31 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH v2 5/5] xfs: only writeback and truncate pages for the freed range Date: Wed, 10 Sep 2014 09:20:31 -0400 X-ASG-Orig-Subj: [PATCH v2 5/5] xfs: only writeback and truncate pages for the freed range Message-Id: <1410355231-50495-6-git-send-email-bfoster@redhat.com> In-Reply-To: <1410355231-50495-1-git-send-email-bfoster@redhat.com> References: <1410355231-50495-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410355233 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 xfs_free_file_space() only affects the range of the file for which space is being freed. It currently writes and truncates the page cache from the start offset of the free to EOF. Modify xfs_free_file_space() to write back and truncate page cache of just the range being freed. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner --- fs/xfs/xfs_bmap_util.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index eae763f..809ae7d 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1205,6 +1205,7 @@ xfs_free_file_space( xfs_bmap_free_t free_list; xfs_bmbt_irec_t imap; xfs_off_t ioffset; + xfs_off_t iendoffset; xfs_extlen_t mod=0; xfs_mount_t *mp; int nimap; @@ -1233,12 +1234,13 @@ xfs_free_file_space( inode_dio_wait(VFS_I(ip)); rounding = max_t(xfs_off_t, 1 << mp->m_sb.sb_blocklog, PAGE_CACHE_SIZE); - ioffset = offset & ~(rounding - 1); - error = filemap_write_and_wait_range(VFS_I(ip)->i_mapping, - ioffset, -1); + ioffset = round_down(offset, rounding); + iendoffset = round_up(offset + len, rounding) - 1; + error = filemap_write_and_wait_range(VFS_I(ip)->i_mapping, ioffset, + iendoffset); if (error) goto out; - truncate_pagecache_range(VFS_I(ip), ioffset, -1); + truncate_pagecache_range(VFS_I(ip), ioffset, iendoffset); /* * Need to zero the stuff we're not freeing, on disk. -- 1.8.3.1 From bfoster@redhat.com Wed Sep 10 08:20:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id D83E57F3F for ; Wed, 10 Sep 2014 08:20:37 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 76ED6AC007 for ; Wed, 10 Sep 2014 06:20:34 -0700 (PDT) X-ASG-Debug-ID: 1410355233-04bdf01097934640001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id qfkpCcnauXCupPYl (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 10 Sep 2014 06:20:33 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8ADKWoY007715 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Wed, 10 Sep 2014 09:20:33 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8ADKWmm015976 for ; Wed, 10 Sep 2014 09:20:32 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 5E8E3123B5C; Wed, 10 Sep 2014 09:20:31 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH v2 2/5] xfs: refactor shift-by-merge into xfs_bmse_merge() helper Date: Wed, 10 Sep 2014 09:20:28 -0400 X-ASG-Orig-Subj: [PATCH v2 2/5] xfs: refactor shift-by-merge into xfs_bmse_merge() helper Message-Id: <1410355231-50495-3-git-send-email-bfoster@redhat.com> In-Reply-To: <1410355231-50495-1-git-send-email-bfoster@redhat.com> References: <1410355231-50495-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410355233 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The extent shift mechanism in xfs_bmap_shift_extents() is complicated and handles several different, non-deterministic scenarios. These include extent shifts, extent merges and potential btree updates in either of the former scenarios. Refactor the code to be more linear and readable. The loop logic in xfs_bmap_shift_extents() and some initial error checking is adjusted slightly. The associated btree lookup and update/delete operations are condensed into single blocks of code. This reduces the number of btree-specific blocks and facilitates the separation of the merge operation into a new xfs_bmse_merge() and xfs_bmse_can_merge() helpers. This is a code refactor only. The behavior of extent shift and collapse range is not modified. Signed-off-by: Brian Foster --- fs/xfs/libxfs/xfs_bmap.c | 242 ++++++++++++++++++++++++++++++++--------------- 1 file changed, 167 insertions(+), 75 deletions(-) diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 4b3f1b9..532c4aa 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -5404,6 +5404,120 @@ error0: } /* + * Determine whether an extent shift can be accomplished by a merge with the + * extent that precedes the target hole of the shift. + */ +STATIC bool +xfs_bmse_can_merge( + struct xfs_bmbt_irec *left, /* preceding extent */ + struct xfs_bmbt_irec *got, /* current extent to shift */ + xfs_fileoff_t shift) /* shift fsb */ +{ + xfs_fileoff_t startoff; + + startoff = got->br_startoff - shift; + + /* + * The extent, once shifted, must be adjacent in-file and on-disk with + * the preceding extent. + */ + if ((left->br_startoff + left->br_blockcount != startoff) || + (left->br_startblock + left->br_blockcount != got->br_startblock) || + (left->br_state != got->br_state) || + (left->br_blockcount + got->br_blockcount > MAXEXTLEN)) + return false; + + return true; +} + +/* + * A bmap extent shift adjusts the file offset of an extent to fill a preceding + * hole in the file. If an extent shift would result in the extent being fully + * adjacent to the extent that currently precedes the hole, we can merge with + * the preceding extent rather than do the shift. + * + * This function assumes the caller has verified a shift-by-merge is possible + * with the provided extents via xfs_bmse_can_merge(). + */ +STATIC int +xfs_bmse_merge( + struct xfs_inode *ip, + int whichfork, + xfs_fileoff_t shift, /* shift fsb */ + int current_ext, /* idx of gotp */ + struct xfs_bmbt_rec_host *gotp, /* extent to shift */ + struct xfs_bmbt_rec_host *leftp, /* preceding extent */ + struct xfs_btree_cur *cur, + int *logflags) /* output */ +{ + struct xfs_ifork *ifp; + struct xfs_bmbt_irec got; + struct xfs_bmbt_irec left; + xfs_filblks_t blockcount; + int error, i; + + ifp = XFS_IFORK_PTR(ip, whichfork); + xfs_bmbt_get_all(gotp, &got); + xfs_bmbt_get_all(leftp, &left); + blockcount = left.br_blockcount + got.br_blockcount; + + ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL)); + ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); + ASSERT(xfs_bmse_can_merge(&left, &got, shift)); + + /* + * Merge the in-core extents. Note that the host record pointers and + * current_ext index are invalid once the extent has been removed via + * xfs_iext_remove(). + */ + xfs_bmbt_set_blockcount(leftp, blockcount); + xfs_iext_remove(ip, current_ext, 1, 0); + + /* + * Update the on-disk extent count, the btree if necessary and log the + * inode. + */ + XFS_IFORK_NEXT_SET(ip, whichfork, + XFS_IFORK_NEXTENTS(ip, whichfork) - 1); + *logflags |= XFS_ILOG_CORE; + if (!cur) { + *logflags |= XFS_ILOG_DEXT; + return 0; + } + + /* lookup and remove the extent to merge */ + error = xfs_bmbt_lookup_eq(cur, got.br_startoff, got.br_startblock, + got.br_blockcount, &i); + if (error) + goto out_error; + XFS_WANT_CORRUPTED_GOTO(i == 1, out_error); + + error = xfs_btree_delete(cur, &i); + if (error) + goto out_error; + XFS_WANT_CORRUPTED_GOTO(i == 1, out_error); + + /* lookup and update size of the previous extent */ + error = xfs_bmbt_lookup_eq(cur, left.br_startoff, left.br_startblock, + left.br_blockcount, &i); + if (error) + goto out_error; + XFS_WANT_CORRUPTED_GOTO(i == 1, out_error); + + left.br_blockcount = blockcount; + + error = xfs_bmbt_update(cur, left.br_startoff, left.br_startblock, + left.br_blockcount, left.br_state); + if (error) + goto out_error; + + return 0; + +out_error: + return error; +} + +/* * Shift extent records to the left to cover a hole. * * The maximum number of extents to be shifted in a single operation is @@ -5427,6 +5541,7 @@ xfs_bmap_shift_extents( { struct xfs_btree_cur *cur = NULL; struct xfs_bmbt_rec_host *gotp; + struct xfs_bmbt_rec_host *leftp; struct xfs_bmbt_irec got; struct xfs_bmbt_irec left; struct xfs_mount *mp = ip->i_mount; @@ -5438,7 +5553,6 @@ xfs_bmap_shift_extents( int i; int whichfork = XFS_DATA_FORK; int logflags = 0; - xfs_filblks_t blockcount = 0; int total_extents; if (unlikely(XFS_TEST_ERROR( @@ -5464,6 +5578,13 @@ xfs_bmap_shift_extents( return error; } + if (ifp->if_flags & XFS_IFBROOT) { + cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork); + cur->bc_private.b.firstblock = *firstblock; + cur->bc_private.b.flist = flist; + cur->bc_private.b.flags = 0; + } + /* * Look up the extent index for the fsb where we start shifting. We can * henceforth iterate with current_ext as extent list changes are locked @@ -5476,14 +5597,17 @@ xfs_bmap_shift_extents( gotp = xfs_iext_bno_to_ext(ifp, start_fsb, ¤t_ext); if (!gotp) { *done = 1; - return 0; + goto del_cursor; } + xfs_bmbt_get_all(gotp, &got); - if (ifp->if_flags & XFS_IFBROOT) { - cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork); - cur->bc_private.b.firstblock = *firstblock; - cur->bc_private.b.flist = flist; - cur->bc_private.b.flags = 0; + /* + * If the first extent is shifted, offset_shift_fsb cannot be larger + * than the starting offset of the first extent. + */ + if (current_ext == 0 && got.br_startoff < offset_shift_fsb) { + error = -EINVAL; + goto del_cursor; } /* @@ -5493,30 +5617,41 @@ xfs_bmap_shift_extents( */ total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); while (nexts++ < num_exts && current_ext < total_extents) { - - gotp = xfs_iext_get_ext(ifp, current_ext); - xfs_bmbt_get_all(gotp, &got); startoff = got.br_startoff - offset_shift_fsb; - /* - * Before shifting extent into hole, make sure that the hole is - * large enough to accommodate the shift. - */ + /* grab the left extent and check for a potential merge */ if (current_ext > 0) { - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, current_ext - 1), - &left); - if (startoff < left.br_startoff + left.br_blockcount) + leftp = xfs_iext_get_ext(ifp, current_ext - 1); + xfs_bmbt_get_all(leftp, &left); + + /* make sure hole is large enough for shift */ + if (startoff < left.br_startoff + left.br_blockcount) { error = -EINVAL; - } else if (offset_shift_fsb > got.br_startoff) { - /* - * When first extent is shifted, offset_shift_fsb should - * be less than the stating offset of the first extent. - */ - error = -EINVAL; + goto del_cursor; + } + + if (xfs_bmse_can_merge(&left, &got, offset_shift_fsb)) { + error = xfs_bmse_merge(ip, whichfork, + offset_shift_fsb, current_ext, gotp, + leftp, cur, &logflags); + if (error) + goto del_cursor; + + /* + * The extent was merged so adjust the extent + * index and move onto the next. + */ + current_ext--; + goto next; + } } - if (error) - goto del_cursor; + /* + * We didn't merge the extent so do the shift. Update the start + * offset in the in-core extent and btree, if necessary. + */ + xfs_bmbt_set_startoff(gotp, startoff); + logflags |= XFS_ILOG_CORE; if (cur) { error = xfs_bmbt_lookup_eq(cur, got.br_startoff, got.br_startblock, @@ -5525,53 +5660,8 @@ xfs_bmap_shift_extents( if (error) goto del_cursor; XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); - } - - /* Check if we can merge 2 adjacent extents */ - if (current_ext && - left.br_startoff + left.br_blockcount == startoff && - left.br_startblock + left.br_blockcount == - got.br_startblock && - left.br_state == got.br_state && - left.br_blockcount + got.br_blockcount <= MAXEXTLEN) { - blockcount = left.br_blockcount + - got.br_blockcount; - xfs_iext_remove(ip, current_ext, 1, 0); - logflags |= XFS_ILOG_CORE; - if (cur) { - error = xfs_btree_delete(cur, &i); - if (error) - goto del_cursor; - XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); - } else { - logflags |= XFS_ILOG_DEXT; - } - XFS_IFORK_NEXT_SET(ip, whichfork, - XFS_IFORK_NEXTENTS(ip, whichfork) - 1); - gotp = xfs_iext_get_ext(ifp, --current_ext); - xfs_bmbt_get_all(gotp, &got); - - /* Make cursor point to the extent we will update */ - if (cur) { - error = xfs_bmbt_lookup_eq(cur, got.br_startoff, - got.br_startblock, - got.br_blockcount, - &i); - if (error) - goto del_cursor; - XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); - } - xfs_bmbt_set_blockcount(gotp, blockcount); - got.br_blockcount = blockcount; - } else { - /* We have to update the startoff */ - xfs_bmbt_set_startoff(gotp, startoff); got.br_startoff = startoff; - } - - logflags |= XFS_ILOG_CORE; - if (cur) { error = xfs_bmbt_update(cur, got.br_startoff, got.br_startblock, got.br_blockcount, @@ -5582,18 +5672,20 @@ xfs_bmap_shift_extents( logflags |= XFS_ILOG_DEXT; } - current_ext++; +next: + /* update total extent count and grab the next record */ total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); + if (++current_ext >= total_extents) + break; + gotp = xfs_iext_get_ext(ifp, current_ext); + xfs_bmbt_get_all(gotp, &got); } /* Check if we are done */ if (current_ext == total_extents) *done = 1; - else if (next_fsb) { - gotp = xfs_iext_get_ext(ifp, current_ext); - xfs_bmbt_get_all(gotp, &got); + else if (next_fsb) *next_fsb = got.br_startoff; - } del_cursor: if (cur) -- 1.8.3.1 From bfoster@redhat.com Wed Sep 10 08:20:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 6BE4E7F58 for ; Wed, 10 Sep 2014 08:20:38 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id CF63AAC00A for ; Wed, 10 Sep 2014 06:20:34 -0700 (PDT) X-ASG-Debug-ID: 1410355233-04cb6c5500990140001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 46w0l9aFg2sVLoeI (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 10 Sep 2014 06:20:33 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8ADKWBe001676 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Wed, 10 Sep 2014 09:20:32 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8ADKW3Z015982 for ; Wed, 10 Sep 2014 09:20:32 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 860BF12570E; Wed, 10 Sep 2014 09:20:31 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH v2 3/5] xfs: refactor single extent shift into xfs_bmse_shift_one() helper Date: Wed, 10 Sep 2014 09:20:29 -0400 X-ASG-Orig-Subj: [PATCH v2 3/5] xfs: refactor single extent shift into xfs_bmse_shift_one() helper Message-Id: <1410355231-50495-4-git-send-email-bfoster@redhat.com> In-Reply-To: <1410355231-50495-1-git-send-email-bfoster@redhat.com> References: <1410355231-50495-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410355233 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 xfs_bmap_shift_extents() has a variety of conditions and error checks that make the logic difficult to follow and indent heavy. Refactor the loop body of this function into a new xfs_bmse_shift_one() helper. This simplifies the error checks, eliminates index decrement on merge hack by pushing the index increment down into the helper, and makes the code more readable by reducing multiple levels of indentation. This is a code refactor only. The behavior of extent shift and collapse range is not modified. Signed-off-by: Brian Foster --- fs/xfs/libxfs/xfs_bmap.c | 164 ++++++++++++++++++++++++++--------------------- 1 file changed, 91 insertions(+), 73 deletions(-) diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 532c4aa..69bf8d8 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -5518,6 +5518,88 @@ out_error: } /* + * Shift a single extent. + */ +STATIC int +xfs_bmse_shift_one( + struct xfs_inode *ip, + int whichfork, + xfs_fileoff_t offset_shift_fsb, + int *current_ext, + struct xfs_bmbt_rec_host *gotp, + struct xfs_btree_cur *cur, + int *logflags) +{ + struct xfs_ifork *ifp; + xfs_fileoff_t startoff; + struct xfs_bmbt_rec_host *leftp; + struct xfs_bmbt_irec got; + struct xfs_bmbt_irec left; + int error; + int i; + + ifp = XFS_IFORK_PTR(ip, whichfork); + + xfs_bmbt_get_all(gotp, &got); + startoff = got.br_startoff - offset_shift_fsb; + + /* + * If this is the first extent in the file, make sure there's enough + * room at the start of the file and jump right to the shift as there's + * no left extent to merge. + */ + if (*current_ext == 0) { + if (got.br_startoff < offset_shift_fsb) + return -EINVAL; + goto shift_extent; + } + + /* grab the left extent and check for a large enough hole */ + leftp = xfs_iext_get_ext(ifp, *current_ext - 1); + xfs_bmbt_get_all(leftp, &left); + + if (startoff < left.br_startoff + left.br_blockcount) + return -EINVAL; + + /* check whether to merge the extent or shift it down */ + if (!xfs_bmse_can_merge(&left, &got, offset_shift_fsb)) + goto shift_extent; + + return xfs_bmse_merge(ip, whichfork, offset_shift_fsb, *current_ext, + gotp, leftp, cur, logflags); + +shift_extent: + /* + * Increment the extent index for the next iteration, update the start + * offset of the in-core extent and update the btree if applicable. + */ + (*current_ext)++; + xfs_bmbt_set_startoff(gotp, startoff); + *logflags |= XFS_ILOG_CORE; + if (!cur) { + *logflags |= XFS_ILOG_DEXT; + return 0; + } + + error = xfs_bmbt_lookup_eq(cur, got.br_startoff, got.br_startblock, + got.br_blockcount, &i); + if (error) + return error; + XFS_WANT_CORRUPTED_GOTO(i == 1, out_error); + + got.br_startoff = startoff; + error = xfs_bmbt_update(cur, got.br_startoff, got.br_startblock, + got.br_blockcount, got.br_state); + if (error) + return error; + + return 0; + +out_error: + return error; +} + +/* * Shift extent records to the left to cover a hole. * * The maximum number of extents to be shifted in a single operation is @@ -5541,16 +5623,12 @@ xfs_bmap_shift_extents( { struct xfs_btree_cur *cur = NULL; struct xfs_bmbt_rec_host *gotp; - struct xfs_bmbt_rec_host *leftp; struct xfs_bmbt_irec got; - struct xfs_bmbt_irec left; struct xfs_mount *mp = ip->i_mount; struct xfs_ifork *ifp; xfs_extnum_t nexts = 0; xfs_extnum_t current_ext; - xfs_fileoff_t startoff; int error = 0; - int i; int whichfork = XFS_DATA_FORK; int logflags = 0; int total_extents; @@ -5599,16 +5677,6 @@ xfs_bmap_shift_extents( *done = 1; goto del_cursor; } - xfs_bmbt_get_all(gotp, &got); - - /* - * If the first extent is shifted, offset_shift_fsb cannot be larger - * than the starting offset of the first extent. - */ - if (current_ext == 0 && got.br_startoff < offset_shift_fsb) { - error = -EINVAL; - goto del_cursor; - } /* * There may be delalloc extents in the data fork before the range we @@ -5617,75 +5685,25 @@ xfs_bmap_shift_extents( */ total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); while (nexts++ < num_exts && current_ext < total_extents) { - startoff = got.br_startoff - offset_shift_fsb; - - /* grab the left extent and check for a potential merge */ - if (current_ext > 0) { - leftp = xfs_iext_get_ext(ifp, current_ext - 1); - xfs_bmbt_get_all(leftp, &left); - - /* make sure hole is large enough for shift */ - if (startoff < left.br_startoff + left.br_blockcount) { - error = -EINVAL; - goto del_cursor; - } - - if (xfs_bmse_can_merge(&left, &got, offset_shift_fsb)) { - error = xfs_bmse_merge(ip, whichfork, - offset_shift_fsb, current_ext, gotp, - leftp, cur, &logflags); - if (error) - goto del_cursor; - - /* - * The extent was merged so adjust the extent - * index and move onto the next. - */ - current_ext--; - goto next; - } - } - - /* - * We didn't merge the extent so do the shift. Update the start - * offset in the in-core extent and btree, if necessary. - */ - xfs_bmbt_set_startoff(gotp, startoff); - logflags |= XFS_ILOG_CORE; - if (cur) { - error = xfs_bmbt_lookup_eq(cur, got.br_startoff, - got.br_startblock, - got.br_blockcount, - &i); - if (error) - goto del_cursor; - XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); - - got.br_startoff = startoff; - error = xfs_bmbt_update(cur, got.br_startoff, - got.br_startblock, - got.br_blockcount, - got.br_state); - if (error) - goto del_cursor; - } else { - logflags |= XFS_ILOG_DEXT; - } + error = xfs_bmse_shift_one(ip, whichfork, offset_shift_fsb, + ¤t_ext, gotp, cur, &logflags); + if (error) + goto del_cursor; -next: /* update total extent count and grab the next record */ total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); - if (++current_ext >= total_extents) + if (current_ext >= total_extents) break; gotp = xfs_iext_get_ext(ifp, current_ext); - xfs_bmbt_get_all(gotp, &got); } /* Check if we are done */ - if (current_ext == total_extents) + if (current_ext == total_extents) { *done = 1; - else if (next_fsb) + } else if (next_fsb) { + xfs_bmbt_get_all(gotp, &got); *next_fsb = got.br_startoff; + } del_cursor: if (cur) -- 1.8.3.1 From eflorac@intellique.com Wed Sep 10 09:24:12 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 58F117F3F for ; Wed, 10 Sep 2014 09:24:12 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 4746A304059 for ; Wed, 10 Sep 2014 07:24:12 -0700 (PDT) X-ASG-Debug-ID: 1410359050-04cbb05485c987a0001-NocioJ Received: from mail1.g1.pair.com (mail1.g1.pair.com [66.39.3.162]) by cuda.sgi.com with ESMTP id B4d30FUkwa6W9Kzl (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 10 Sep 2014 07:24:10 -0700 (PDT) X-Barracuda-Envelope-From: eflorac@intellique.com X-Barracuda-Apparent-Source-IP: 66.39.3.162 Received: from localhost (localhost [127.0.0.1]) by mail1.g1.pair.com (Postfix) with SMTP id 6960D2C6B2; Wed, 10 Sep 2014 10:24:10 -0400 (EDT) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) by mail1.g1.pair.com (Postfix) with ESMTPSA id F0CB72C32A; Wed, 10 Sep 2014 10:24:07 -0400 (EDT) Date: Wed, 10 Sep 2014 16:24:11 +0200 From: Emmanuel Florac To: Leslie Rhorer Cc: Roger Willcocks , Sean Caron , Eric Sandeen , "xfs@oss.sgi.com" Subject: Re: Corrupted files Message-ID: <20140910162411.07ef02a5@harpe.intellique.com> X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: <540FA9DB.20000@mygrande.net> References: <540F1B01.3020700@mygrande.net> <540F7E37.7020500@sandeen.net> <540F9FE9.7070500@mygrande.net> <3E40936B-A1F2-424D-B0B3-54B6C7B50B13@filmlight.ltd.uk> <540FA9DB.20000@mygrande.net> Organization: Intellique X-Mailer: Claws Mail 3.10.0 (GTK+ 2.24.20; i486-slackware-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail1.g1.pair.com[66.39.3.162] X-Barracuda-Start-Time: 1410359050 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9341 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Le Tue, 09 Sep 2014 20:31:07 -0500 Leslie Rhorer =C3=A9crivait: > More=20 > importantly, is there some reason 3.1.7 would make things worse while=20 > 3.2.1 would not? If not, then I can always try 3.1.7 and then try > 3.2.1 if that does not help. I don't know for these particular versions, however in the past I've confirmed that a later version of xfs_repair performed way better (salvaged more files from lost+found, in particular). At some point in the distant past, some versions of xfs_repair were buggy and would happily throw away TB of perfectly sane data... Ih ad this very problem once on Christmas eve in 2005 IIRC :/ --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From debbugs@buxtehude.debian.org Wed Sep 10 09:24:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=3.0 required=5.0 tests=TVD_SUBJ_NUM_OBFU_MINFP autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3D2757F3F for ; Wed, 10 Sep 2014 09:24:13 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 2B24C304059 for ; Wed, 10 Sep 2014 07:24:13 -0700 (PDT) X-ASG-Debug-ID: 1410359048-04cbb05486c987a0001-NocioJ Received: from buxtehude.debian.org (buxtehude.debian.org [140.211.166.26]) by cuda.sgi.com with ESMTP id lI26uLfCSW10cjcD (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO) for ; Wed, 10 Sep 2014 07:24:08 -0700 (PDT) X-Barracuda-Envelope-From: debbugs@buxtehude.debian.org X-Barracuda-Apparent-Source-IP: 140.211.166.26 Received: from debbugs by buxtehude.debian.org with local (Exim 4.80) (envelope-from ) id 1XRioX-00084C-Jx; Wed, 10 Sep 2014 14:24:05 +0000 X-Loop: owner@bugs.debian.org Subject: Bug#757455: please run dh_autoreconf or manually update m4/libtool.m4 for ppc64el Reply-To: Andreas Barth , 757455@bugs.debian.org X-ASG-Orig-Subj: Bug#757455: please run dh_autoreconf or manually update m4/libtool.m4 for ppc64el Resent-From: Andreas Barth Resent-To: debian-bugs-dist@lists.debian.org Resent-Cc: XFS Development Team X-Loop: owner@bugs.debian.org Resent-Date: Wed, 10 Sep 2014 14:24:02 +0000 Resent-Message-ID: X-Debian-PR-Message: followup 757455 X-Debian-PR-Package: src:xfsprogs X-Debian-PR-Keywords: X-Debian-PR-Source: xfsprogs Received: via spool by 757455-submit@bugs.debian.org id=B757455.141035895430667 (code B ref 757455); Wed, 10 Sep 2014 14:24:02 +0000 Received: (at 757455) by bugs.debian.org; 10 Sep 2014 14:22:34 +0000 Received: from alius.ayous.org ([89.238.89.44]) by buxtehude.debian.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.80) (envelope-from ) id 1XRin3-0007yN-VO for 757455@bugs.debian.org; Wed, 10 Sep 2014 14:22:34 +0000 Received: from eos.turmzimmer.net ([2001:a60:f006:aba::1]) by alius.turmzimmer.net with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.72) (envelope-from ) id 1XRin1-00085Z-OI; Wed, 10 Sep 2014 14:22:31 +0000 Received: from aba by eos.turmzimmer.net with local (Exim 4.69) (envelope-from ) id 1XRimw-0008LL-ET; Wed, 10 Sep 2014 16:22:26 +0200 Date: Wed, 10 Sep 2014 16:22:26 +0200 From: Andreas Barth To: Matthias Klose , 757455@bugs.debian.org Message-ID: <20140910142226.GA32059@mails.so.argh.org> References: <53E4C0A5.8060704@debian.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53E4C0A5.8060704@debian.org> X-Editor: Vim http://www.vim.org/ User-Agent: Mutt/1.5.18 (2008-05-17) X-Barracuda-Connect: buxtehude.debian.org[140.211.166.26] X-Barracuda-Start-Time: 1410359048 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9341 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- * Matthias Klose (doko@debian.org) [140910 14:19]: > trying to use dh_autoreconf: It works with the following patch: diff -ur xfsprogs-3.2.1~/debian/control xfsprogs-3.2.1/debian/control --- xfsprogs-3.2.1~/debian/control 2014-05-02 00:09:15.000000000 +0000 +++ xfsprogs-3.2.1/debian/control 2014-09-10 14:14:34.026319172 +0000 @@ -3,7 +3,7 @@ Priority: optional Maintainer: XFS Development Team Uploaders: Nathan Scott , Anibal Monsalve Salazar -Build-Depends: uuid-dev, autoconf, debhelper (>= 5), gettext, libtool, libreadline-gplv2-dev | libreadline5-dev, libblkid-dev (>= 2.17), linux-libc-dev, autotools-dev +Build-Depends: uuid-dev, dh-autoreconf, debhelper (>= 5), gettext, libtool, libreadline-gplv2-dev | libreadline5-dev, libblkid-dev (>= 2.17), linux-libc-dev Standards-Version: 3.9.1 Homepage: http://oss.sgi.com/projects/xfs/ diff -ur xfsprogs-3.2.1~/debian/rules xfsprogs-3.2.1/debian/rules --- xfsprogs-3.2.1~/debian/rules 2014-05-02 00:09:15.000000000 +0000 +++ xfsprogs-3.2.1/debian/rules 2014-09-10 14:13:18.182294515 +0000 @@ -35,7 +35,7 @@ .census: @echo "== dpkg-buildpackage: configure" 1>&2 $(checkdir) - dh_autotools-dev_updateconfig + AUTOHEADER=/bin/true dh_autoreconf $(options) $(MAKE) include/platform_defs.h touch .census @@ -58,7 +58,7 @@ $(MAKE) distclean -rm -rf $(dirme) $(dirdev) $(dirdi) -rm -f debian/*substvars debian/files* debian/*.debhelper - dh_autotools-dev_restoreconfig + dh_autoreconf_clean dh_clean binary-indep: As this package is required to build ceph, libvirt and redhat-cluster I'd be willing to help fixing it, if required also by an NMU. Unless there is a reason why not, I intend to upload the fix within the next days. Andi From eflorac@intellique.com Wed Sep 10 09:31:27 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 333327F3F for ; Wed, 10 Sep 2014 09:31:27 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id C4CB5AC005 for ; Wed, 10 Sep 2014 07:31:23 -0700 (PDT) X-ASG-Debug-ID: 1410359481-04bdf010a09373f0001-NocioJ Received: from mail1.g1.pair.com (mail1.g1.pair.com [66.39.3.162]) by cuda.sgi.com with ESMTP id pwXfqXRKhWCPVaEi (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 10 Sep 2014 07:31:22 -0700 (PDT) X-Barracuda-Envelope-From: eflorac@intellique.com X-Barracuda-Apparent-Source-IP: 66.39.3.162 Received: from localhost (localhost [127.0.0.1]) by mail1.g1.pair.com (Postfix) with SMTP id AD8FD2C95D; Wed, 10 Sep 2014 10:31:21 -0400 (EDT) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) by mail1.g1.pair.com (Postfix) with ESMTPSA id 3DE922CE0E; Wed, 10 Sep 2014 10:31:20 -0400 (EDT) Date: Wed, 10 Sep 2014 16:31:24 +0200 From: Emmanuel Florac To: Leslie Rhorer Cc: Sean Caron , "xfs@oss.sgi.com" Subject: Re: Corrupted files Message-ID: <20140910163124.3d879432@harpe.intellique.com> X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: <540FACAC.3010504@mygrande.net> References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> <540FA586.9090308@mygrande.net> <540FACAC.3010504@mygrande.net> Organization: Intellique X-Mailer: Claws Mail 3.10.0 (GTK+ 2.24.20; i486-slackware-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail1.g1.pair.com[66.39.3.162] X-Barracuda-Start-Time: 1410359482 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9341 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Le Tue, 09 Sep 2014 20:43:08 -0500 Leslie Rhorer =C3=A9crivait: > None of the failed drives were WD green. All three and the > previous four were Seagate. I realize that is not a large > statistical sample. >=20 If you're interested in large statistical samples, on a grand total of 4000 1 TB Seagate Barracuda ES2, I had to replace 2100 of them over the course of 3 years. I still have a couple of hundred of these unfortunate pieces of crap in service, and they still represent the vast majority of unexpected RAID malfunctions, urgent replacements, late night calls and other "interesting side activities". I wouldn't buy anything labeled Seagate nowadays. Their drives have been the baddest train wreck since the dreaded 9 GB Micropolis back in 1994 (or was it 1995?). --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From eflorac@intellique.com Wed Sep 10 09:34:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 54B6D7F4E for ; Wed, 10 Sep 2014 09:34:40 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 34CCC8F8052 for ; Wed, 10 Sep 2014 07:34:37 -0700 (PDT) X-ASG-Debug-ID: 1410359676-04cb6c5500992d30001-NocioJ Received: from mail1.g1.pair.com (mail1.g1.pair.com [66.39.3.162]) by cuda.sgi.com with ESMTP id nzTq4JYhmuEOcySv (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 10 Sep 2014 07:34:36 -0700 (PDT) X-Barracuda-Envelope-From: eflorac@intellique.com X-Barracuda-Apparent-Source-IP: 66.39.3.162 Received: from localhost (localhost [127.0.0.1]) by mail1.g1.pair.com (Postfix) with SMTP id E62EE2C958; Wed, 10 Sep 2014 10:34:35 -0400 (EDT) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) by mail1.g1.pair.com (Postfix) with ESMTPSA id B123A2CF69; Wed, 10 Sep 2014 10:34:33 -0400 (EDT) Date: Wed, 10 Sep 2014 16:34:38 +0200 From: Emmanuel Florac To: Leslie Rhorer Cc: Dave Chinner , xfs@oss.sgi.com Subject: Re: Corrupted files Message-ID: <20140910163438.473511ce@harpe.intellique.com> X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: <540FD1EB.8070007@mygrande.net> References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> <540FA586.9090308@mygrande.net> <20140910015331.GJ20518@dastard> <540FC135.8010601@mygrande.net> <20140910033331.GA27048@dastard> <540FD038.5010202@mygrande.net> <540FD1EB.8070007@mygrande.net> Organization: Intellique X-Mailer: Claws Mail 3.10.0 (GTK+ 2.24.20; i486-slackware-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail1.g1.pair.com[66.39.3.162] X-Barracuda-Start-Time: 1410359676 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9341 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Le Tue, 09 Sep 2014 23:22:03 -0500 Leslie Rhorer =C3=A9crivait: > Oops! Hold on. I didn't read that closely enough. You were > saying I only need to compile xfs-progs. That's working. >=20 You don't need to install the resulting binaries either. xfs_repair will happily run from the source directory, ./xfs_repair /dev/blah ... --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From scaron@umich.edu Wed Sep 10 09:49:34 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D79067F50 for ; Wed, 10 Sep 2014 09:49:34 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id B5A148F8049 for ; Wed, 10 Sep 2014 07:49:34 -0700 (PDT) X-ASG-Debug-ID: 1410360572-04cbb05488c998e0001-NocioJ Received: from mail-qg0-f47.google.com (mail-qg0-f47.google.com [209.85.192.47]) by cuda.sgi.com with ESMTP id f65i81D7aJFsUkwn (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 10 Sep 2014 07:49:32 -0700 (PDT) X-Barracuda-Envelope-From: scaron@umich.edu X-Barracuda-Apparent-Source-IP: 209.85.192.47 Received: by mail-qg0-f47.google.com with SMTP id i50so4734392qgf.20 for ; Wed, 10 Sep 2014 07:49:32 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=vi3qCc/JlqhSZeLKuxrZYVzixSvIQ6md0uBVV/Bg+RM=; b=GSPNJ95NEVvpGkix0p5Ff3X8WJOT8LmTfbwfjtHsVNHiF6yXKqSi+PowsH48xPFXli pitRnKFrLauwWH+iNbBhX0JTDinFBlcfZ8z0btrnlC6B4lfXDjCrUnEB+UJJmqT1zAXH uuWak6q3VvjwvUROWIPeh2hZARcy9cF4yBDKVO3vC8Rzg8wADA3TsxuIPfwWodxtMIHV PVxWOpQLUny3lBjNS9lRSofsCI88h+IfEOWu+t8wyMigQPiPE6z/6ymIGP8UqPscgneA YWah+PpXz/0KxNx23BHtN7obmMg2IXRU5kbzzIeO4Xk1aFlrY7QTajtq/pb2eic4hlAC sMhQ== X-Gm-Message-State: ALoCoQltgQrI8DZyDMoJONZECP4zRtK7pz779s6Twld/mi0TDB5+IzydLlxtyo+TEZUnUbj0fuLO MIME-Version: 1.0 X-Received: by 10.224.24.68 with SMTP id u4mr13597295qab.71.1410360572281; Wed, 10 Sep 2014 07:49:32 -0700 (PDT) Received: by 10.224.8.132 with HTTP; Wed, 10 Sep 2014 07:49:32 -0700 (PDT) In-Reply-To: <20140910162411.07ef02a5@harpe.intellique.com> References: <540F1B01.3020700@mygrande.net> <540F7E37.7020500@sandeen.net> <540F9FE9.7070500@mygrande.net> <3E40936B-A1F2-424D-B0B3-54B6C7B50B13@filmlight.ltd.uk> <540FA9DB.20000@mygrande.net> <20140910162411.07ef02a5@harpe.intellique.com> Date: Wed, 10 Sep 2014 10:49:32 -0400 Message-ID: Subject: Re: Corrupted files From: Sean Caron X-ASG-Orig-Subj: Re: Corrupted files To: Emmanuel Florac , Sean Caron Cc: Leslie Rhorer , Roger Willcocks , Eric Sandeen , "xfs@oss.sgi.com" Content-Type: multipart/alternative; boundary=001a11c2a30eea9ed20502b728d1 X-Barracuda-Connect: mail-qg0-f47.google.com[209.85.192.47] X-Barracuda-Start-Time: 1410360572 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9341 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message --001a11c2a30eea9ed20502b728d1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable I don't want to bloviate too much and drag this completely off topic esp. since the OPs query is resolved but please allow me just one anecdote :) Earlier this year, I had one of our project file servers (450 TB) go down. It didn't go down because the array spuriously just lost a bunch of disks; it was simply your usual sort of Linux kernel panic... you go to the console and it's just black screen and unresponsive, or maybe you can see the tail end of a backtrace and it's unresponsive. So, OK, issue a quick remote IPMI reboot of the machine, it comes up... I'm in single user mode, bringing up each sub-RAID6 in our RAID60 by hand, no problem. Bring up the top level RAID0. OK. Then I go to mount the XFS... no go. Apparently the log somehow got corrupted in the crash? So I try to mount ro, no dice, but I _can_ mount ro,noreplaylog and I see good files here! Thank goodness. I start scavenging to a spare host... A few weeks later, after the scavenge is done, I did a few xfs_repair runs just for the sake of experimentation. Using both in dry run mode, I tried the version that shipped with Ubuntu 12.04, as well as the latest xfs_repair I could pull from the source tree. I redirected the output of both runs to file and watched them with 'tail -f'. Diffing the output when they were done, it didn't look like they were behaving much differently. Both files had thousands or tens of thousands of lines worth of output in them, bad this, bad that... (I always run in verbose mode) Since the filesystem was hosed anyway and I was going to rebuild it, I decided to let the new xfs_repair run "for real" just to see what would happen, for kicks. And who knows? Maybe I could recover even more than I already had ...? (I wasn't just totally wasting time) I think it took maybe a week for it to run on a 450 TB volume? At least a week. Maybe I was being a teensy bit hyperbolic in my previous descriptions of runtime, LOL. After it was done? ... almost everything was obliterated. I had tens of millions of zero-length files, and tens of millions of bits of anonymous scrambled junk in lost+found. So, I chuckled a bit (thankful for my hard-won previous experience) before reformatting the array and then copied back the results of my scavenging. Just by ro-mounting and copying what I could, I was able to save around 90% of the data by volume on the array (it was a little more than half full when it failed... ~290 TB? There was only ~30 TB that I couldn't salvage); good clean files that passed validation from their respective users. I think 80-90% recovery rates are very commonly achievable just mounting ro,noreplaylog and getting what you can with cp -R or rsync, given that there wasn't grievous failure of the underlying storage system. If I had depended on xfs_repair, or blithely run it as a first line of response as the documentation might intimate (hey, it's called xfs_repair, right?) like you would casually think to do; run it like people run fsck or CHKDSK... I would have been hosed, big time. Best, Sean On Wed, Sep 10, 2014 at 10:24 AM, Emmanuel Florac wrote: > Le Tue, 09 Sep 2014 20:31:07 -0500 > Leslie Rhorer =C3=A9crivait: > > > More > > importantly, is there some reason 3.1.7 would make things worse while > > 3.2.1 would not? If not, then I can always try 3.1.7 and then try > > 3.2.1 if that does not help. > > I don't know for these particular versions, however in the past > I've confirmed that a later version of xfs_repair performed way better > (salvaged more files from lost+found, in particular). > > At some point in the distant past, some versions of xfs_repair were > buggy and would happily throw away TB of perfectly sane data... Ih ad > this very problem once on Christmas eve in 2005 IIRC :/ > > -- > ------------------------------------------------------------------------ > Emmanuel Florac | Direction technique > | Intellique > | > | +33 1 78 94 84 02 > ------------------------------------------------------------------------ > --001a11c2a30eea9ed20502b728d1 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
I don't want to bloviate too much and drag this c= ompletely off topic esp. since the OPs query is resolved but please allow m= e just one anecdote :)

Earlier this year, I had one of = our project file servers (450 TB) go down. It didn't go down because th= e array spuriously just lost a bunch of disks; it was simply your usual sor= t of Linux kernel panic... you go to the console and it's just black sc= reen and unresponsive, or maybe you can see the tail end of a backtrace and= it's unresponsive. So, OK, issue a quick remote IPMI reboot of the mac= hine, it comes up...

I'm in single user mode, bringi= ng up each sub-RAID6 in our RAID60 by hand, no problem. Bring up the top le= vel RAID0. OK. Then I go to mount the XFS... no go. Apparently the log some= how got corrupted in the crash?

So I try to mount = ro, no dice, but I _can_ mount ro,noreplaylog and I see good files here! Th= ank goodness. I start scavenging to a spare host...

A few weeks later, after the scavenge is done, I did a few xfs_repair run= s just for the sake of experimentation. Using both in dry run mode, I tried= the version that shipped with Ubuntu 12.04, as well as the latest xfs_repa= ir I could pull from the source tree. I redirected the output of both runs = to file and watched them with 'tail -f'.

D= iffing the output when they were done, it didn't look like they were be= having much differently. Both files had thousands or tens of thousands of l= ines worth of output in them, bad this, bad that... (I always run in verbos= e mode) Since the filesystem was hosed anyway and I was going to rebuild it= , I decided to let the new xfs_repair run "for real" just to see = what would happen, for kicks. And who knows? Maybe I could recover even mor= e than I already had ...? (I wasn't just totally wasting time)

I think it took maybe a week for it to run on a 450 TB vol= ume? At least a week. Maybe I was being a teensy bit hyperbolic in my previ= ous descriptions of runtime, LOL. After it was done?

... almost everything was obliterated. I had tens of millions of zero-le= ngth files, and tens of millions of bits of anonymous scrambled junk in los= t+found.

So, I chuckled a bit (thankful for my har= d-won previous experience) before reformatting the array and then copied ba= ck the results of my scavenging. Just by ro-mounting and copying what I cou= ld, I was able to save around 90% of the data by volume on the array (it wa= s a little more than half full when it failed... ~290 TB? There was only ~3= 0 TB that I couldn't salvage); good clean files that passed validation = from their respective users. I think 80-90% recovery rates are very commonl= y achievable just mounting ro,noreplaylog and getting what you can with cp = -R or rsync, given that there wasn't grievous failure of the underlying= storage system.

If I had depended on xfs_repair, = or blithely run it as a first line of response as the documentation might i= ntimate (hey, it's called xfs_repair, right?) like you would casually t= hink to do; run it like people run fsck or CHKDSK... I would have been hose= d, big time.=C2=A0

Best,

= Sean




=


On Wed, Sep 10, 2014 at 10:24 AM, Emmanuel Florac <ef= lorac@intellique.com> wrote:
lrhorer@mygrande.= net> =C3=A9crivait:

> More
> importantly, is there some reason 3.1.7 would make things worse while<= br> > 3.2.1 would not?=C2=A0 If not, then I can always try 3.1.7 and then tr= y
> 3.2.1 if that does not help.

I don't know for these particular versions, however in the past<= br> I've confirmed that a later version of xfs_repair performed way better<= br> (salvaged more files from lost+found, in particular).

At some point in the distant past, some versions of xfs_repair were
buggy and would happily throw away TB of perfectly sane data... Ih ad
this very problem once on Christmas eve in 2005 IIRC :/

--
------------------------------------------------------------------------ Emmanuel Florac=C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0Direction technique
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2= =A0 =C2=A0Intellique
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2= =A0 =C2=A0<eflorac@intellique.= com>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2= =A0 =C2=A0+33 1 78 94 84 02
------------------------------------------------------------------------

--001a11c2a30eea9ed20502b728d1-- From neutrino8@gmail.com Wed Sep 10 09:52:30 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.3 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3CB4A7F50 for ; Wed, 10 Sep 2014 09:52:30 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 29B60304048 for ; Wed, 10 Sep 2014 07:52:30 -0700 (PDT) X-ASG-Debug-ID: 1410360747-04cb6c54fd993ac0001-NocioJ Received: from mail-ig0-f177.google.com (mail-ig0-f177.google.com [209.85.213.177]) by cuda.sgi.com with ESMTP id 7oG2SzH1MkGnj8iq (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 10 Sep 2014 07:52:27 -0700 (PDT) X-Barracuda-Envelope-From: neutrino8@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.213.177 X-Barracuda-IPDD: Level1 [gmail.com/209.85.213.177] Received: by mail-ig0-f177.google.com with SMTP id uq10so3121986igb.4 for ; Wed, 10 Sep 2014 07:52:27 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.213.177] X-Barracuda-IPDD: Level1 [gmail.com/209.85.213.177] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=vk2dPPv1zSmJhk70ijVhJSqlIjSlZig2YklQB0UrYic=; b=VrU23j6ipqvcZqdTt4GWSEYOVkHDfc+X1acm2P7+p1krj5Jcitc9QQY9fCJa8vZc+3 QQ1puuGcSiMxnywxp+edwzwnMPK+7mhz3LdEaXNjxu6Zfazg+CFiW0B71WEXIo/evbqP Gc5tISlJsmb9TnqXVXmuwZtQdL7FeJZVzhb19AG4SANlq2xbdSdEJ7UG0pajZ+FdIdRt GMLNCy7mEOvMWPE1yiTbMGbXWj3iQQCE04NVDIkjNBwenDKd2t3wcWj9XgJWueR9onQf 2GhAto/HcOseSFtPdjaunzycD2A0q17PPFnC93YuHO26CQyPgQpDO1vWTuFaGLTnHsdH +yuw== MIME-Version: 1.0 X-Received: by 10.43.158.195 with SMTP id lv3mr46728564icc.30.1410360747133; Wed, 10 Sep 2014 07:52:27 -0700 (PDT) Received: by 10.50.215.163 with HTTP; Wed, 10 Sep 2014 07:52:27 -0700 (PDT) In-Reply-To: <20140910163124.3d879432@harpe.intellique.com> References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> <540FA586.9090308@mygrande.net> <540FACAC.3010504@mygrande.net> <20140910163124.3d879432@harpe.intellique.com> Date: Wed, 10 Sep 2014 16:52:27 +0200 Message-ID: Subject: Re: Corrupted files From: Grozdan X-ASG-Orig-Subj: Re: Corrupted files To: Emmanuel Florac Cc: Leslie Rhorer , Sean Caron , "xfs@oss.sgi.com" Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail-ig0-f177.google.com[209.85.213.177] X-Barracuda-Start-Time: 1410360747 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9341 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Wed, Sep 10, 2014 at 4:31 PM, Emmanuel Florac w= rote: > Le Tue, 09 Sep 2014 20:43:08 -0500 > Leslie Rhorer =C3=A9crivait: > >> None of the failed drives were WD green. All three and the >> previous four were Seagate. I realize that is not a large >> statistical sample. >> > > If you're interested in large statistical samples, on a grand total of > 4000 1 TB Seagate Barracuda ES2, I had to replace 2100 of them over the > course of 3 years. I still have a couple of hundred of these > unfortunate pieces of crap in service, and they still represent the > vast majority of unexpected RAID malfunctions, urgent replacements, > late night calls and other "interesting side activities". > > I wouldn't buy anything labeled Seagate nowadays. Their drives have > been the baddest train wreck since the dreaded 9 GB Micropolis back in > 1994 (or was it 1995?). Funny, because our server (105 of them) all run on Seagate drives a few years now and I have yet to see one fail or cause other problems. But then again, we use Constellation disks, not Barracuda's. At home I also use both Barracuda's and Constellation ones and also have yet to see a problem with them. > > -- > ------------------------------------------------------------------------ > Emmanuel Florac | Direction technique > | Intellique > | > | +33 1 78 94 84 02 > ------------------------------------------------------------------------ > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs --=20 Yours truly From scaron@umich.edu Wed Sep 10 09:54:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2021B7F54 for ; Wed, 10 Sep 2014 09:54:37 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 0B4D98F8054 for ; Wed, 10 Sep 2014 07:54:37 -0700 (PDT) X-ASG-Debug-ID: 1410360874-04cbb05486c99d50001-NocioJ Received: from mail-qa0-f54.google.com (mail-qa0-f54.google.com [209.85.216.54]) by cuda.sgi.com with ESMTP id MraEkymU1xd91lE0 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 10 Sep 2014 07:54:34 -0700 (PDT) X-Barracuda-Envelope-From: scaron@umich.edu X-Barracuda-Apparent-Source-IP: 209.85.216.54 Received: by mail-qa0-f54.google.com with SMTP id x12so17694239qac.27 for ; Wed, 10 Sep 2014 07:54:33 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=Dj2DfYtvFUOLJg636U6zS598Newt5ubAxfp8DMzvg4Q=; b=ZR/uVUCk8UCbCEGvPaS8vkF3idVglSwm4LWvQFV9oxxGC5HwYKGdFY8KR55FyOMaMX FeFBkgSWnycodM4pGnUNEHc3ZvkAbwJ6iHM5JblBKOrbbFLPuZ/S7k0FE73GoBKxaiOT LOYKJn0ubHF/QMpEss1ytnhskqQQzzbhWf2c7+0b1UqvLGmleX/utp/om6t3Jt9nmQ/0 ljWvQ/uPN3ktWK3hWwQxsWTU63TDPFx2yv45viX/sZerMEYHWzIG0EThLkkX6rx9pkQy TEGTYKhNdb8jyMLYwUIIqCvFoewRhn8E+gqcxA21+AxHhr0U3NDyPBY29au1Z+91s32V E4UQ== X-Gm-Message-State: ALoCoQkT/MDBD6YWrkGeWN8twLqit07aLmWu5rOKi5siUMbe7ljxNMA3Z+H/kaJ01zJcAQQEDlRW MIME-Version: 1.0 X-Received: by 10.224.167.72 with SMTP id p8mr62056885qay.62.1410360873831; Wed, 10 Sep 2014 07:54:33 -0700 (PDT) Received: by 10.224.8.132 with HTTP; Wed, 10 Sep 2014 07:54:33 -0700 (PDT) In-Reply-To: <20140910163124.3d879432@harpe.intellique.com> References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> <540FA586.9090308@mygrande.net> <540FACAC.3010504@mygrande.net> <20140910163124.3d879432@harpe.intellique.com> Date: Wed, 10 Sep 2014 10:54:33 -0400 Message-ID: Subject: Re: Corrupted files From: Sean Caron X-ASG-Orig-Subj: Re: Corrupted files To: Emmanuel Florac , Sean Caron Cc: Leslie Rhorer , "xfs@oss.sgi.com" Content-Type: multipart/alternative; boundary=089e0149c46ee3e15b0502b73a95 X-Barracuda-Connect: mail-qa0-f54.google.com[209.85.216.54] X-Barracuda-Start-Time: 1410360874 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9341 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message --089e0149c46ee3e15b0502b73a95 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable I am probably overseeing a similar number (3-4000) of Hitachi A7K3000s, A7K2000s and WDC RE4s and I probably see a few failures a month. When we are building a new machine and we get a fresh shipment in, maybe 10% failure rate right out of the box. Those that survive the burn-in usually do pretty good. Man, you have my sympathy with that failure rate in excess of 50%... even the WDC Greens weren't THAT bad (although it probably got close, as we neared closer and closer to EOLing them... and they had been moved to third-tier "backup storage" status by that point). Thankfully they are gone now, LOL. You're right, esp. in large installations, it's critical to do your homework on drives, pick a good candidate, validate it and then run with them. Even with the good ones, you've gotta keep a watchful eye... "when you buy them in bulk, they fail in bulk". Best, Sean On Wed, Sep 10, 2014 at 10:31 AM, Emmanuel Florac wrote: > Le Tue, 09 Sep 2014 20:43:08 -0500 > Leslie Rhorer =C3=A9crivait: > > > None of the failed drives were WD green. All three and the > > previous four were Seagate. I realize that is not a large > > statistical sample. > > > > If you're interested in large statistical samples, on a grand total of > 4000 1 TB Seagate Barracuda ES2, I had to replace 2100 of them over the > course of 3 years. I still have a couple of hundred of these > unfortunate pieces of crap in service, and they still represent the > vast majority of unexpected RAID malfunctions, urgent replacements, > late night calls and other "interesting side activities". > > I wouldn't buy anything labeled Seagate nowadays. Their drives have > been the baddest train wreck since the dreaded 9 GB Micropolis back in > 1994 (or was it 1995?). > > -- > ------------------------------------------------------------------------ > Emmanuel Florac | Direction technique > | Intellique > | > | +33 1 78 94 84 02 > ------------------------------------------------------------------------ > --089e0149c46ee3e15b0502b73a95 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
I am probably overseeing a similar number (3-4000) of Hita= chi A7K3000s, A7K2000s and WDC RE4s and I probably see a few failures a mon= th. When we are building a new machine and we get a fresh shipment in, mayb= e 10% failure rate right out of the box. Those that survive the burn-in usu= ally do pretty good. Man, you have my sympathy with that failure rate in ex= cess of 50%... even the WDC Greens weren't THAT bad (although it probab= ly got close, as we neared closer and closer to EOLing them... and they had= been moved to third-tier "backup storage" status by that point).= Thankfully they are gone now, LOL.

You're right, es= p. in large installations, it's critical to do your homework on drives,= pick a good candidate, validate it and then run with them. Even with the g= ood ones, you've gotta keep a watchful eye... "when you buy them i= n bulk, they fail in bulk".

Best,
<= br>Sean



On Wed, Sep 10, 2014 at 10:31 AM, Emmanuel = Florac <eflorac@intellique.com> wrote:
Le Tue, 09 Sep 2014 20:43:08 -0500
Leslie Rhorer <lrhorer@mygrande.= net> =C3=A9crivait:

>=C2=A0 =C2=A0 =C2=A0 =C2=A0None of the failed drives were WD green.=C2= =A0 All three and the
> previous four were Seagate.=C2=A0 I realize that is not a large
> statistical sample.
>

If you're interested in large statistical samples, on a grand to= tal of
4000 1 TB Seagate Barracuda ES2, I had to replace 2100 of them over the
course of 3 years. I still have a couple of hundred of these
unfortunate pieces of crap in service, and they still represent the
vast majority of unexpected RAID malfunctions, urgent replacements,
late night calls and other "interesting side activities".

I wouldn't buy anything labeled Seagate nowadays. Their drives have
been the baddest train wreck since the dreaded 9 GB Micropolis back in
1994 (or was it 1995?).

--
------------------------------------------------------------------------ Emmanuel Florac=C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0Direction technique
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2= =A0 =C2=A0Intellique
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2= =A0 =C2=A0<eflorac@intellique.= com>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2= =A0 =C2=A0+33 1 78 94 84 02
------------------------------------------------------------------------

--089e0149c46ee3e15b0502b73a95-- From eflorac@intellique.com Wed Sep 10 10:12:10 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 530777F3F for ; Wed, 10 Sep 2014 10:12:10 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 3258930405F for ; Wed, 10 Sep 2014 08:12:07 -0700 (PDT) X-ASG-Debug-ID: 1410361926-04cbb05486c9a860001-NocioJ Received: from mail1.g1.pair.com (mail1.g1.pair.com [66.39.3.162]) by cuda.sgi.com with ESMTP id U1VGkBss3EpsvxT2 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 10 Sep 2014 08:12:06 -0700 (PDT) X-Barracuda-Envelope-From: eflorac@intellique.com X-Barracuda-Apparent-Source-IP: 66.39.3.162 Received: from localhost (localhost [127.0.0.1]) by mail1.g1.pair.com (Postfix) with SMTP id E118428B74; Wed, 10 Sep 2014 11:12:05 -0400 (EDT) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) by mail1.g1.pair.com (Postfix) with ESMTPSA id 159582CA0A; Wed, 10 Sep 2014 11:12:03 -0400 (EDT) Date: Wed, 10 Sep 2014 17:12:08 +0200 From: Emmanuel Florac To: Grozdan Cc: Leslie Rhorer , Sean Caron , "xfs@oss.sgi.com" Subject: Re: Corrupted files Message-ID: <20140910171208.4b38807c@harpe.intellique.com> X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> <540FA586.9090308@mygrande.net> <540FACAC.3010504@mygrande.net> <20140910163124.3d879432@harpe.intellique.com> Organization: Intellique X-Mailer: Claws Mail 3.10.0 (GTK+ 2.24.20; i486-slackware-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail1.g1.pair.com[66.39.3.162] X-Barracuda-Start-Time: 1410361926 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9341 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Le Wed, 10 Sep 2014 16:52:27 +0200 Grozdan =C3=A9crivait: > Funny, because our server (105 of them) all run on Seagate drives a > few years now and I have yet to see one fail or cause other problems. > But then again, we use Constellation disks, not Barracuda's. At home I > also use both Barracuda's and Constellation ones and also have yet to > see a problem with them. >=20 Yes, we replaced most failed Barracudas with Constellations at a later stage (because the "certified repaired" Barracudas aren't any better... ) and these work fine so far. However, why would I give Seagate my hard-earned money after they cost me so dearly for years? :) --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From neutrino8@gmail.com Wed Sep 10 10:32:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.3 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C8AD17F57 for ; Wed, 10 Sep 2014 10:32:19 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 81421304051 for ; Wed, 10 Sep 2014 08:32:19 -0700 (PDT) X-ASG-Debug-ID: 1410363138-04bdf01097939e70001-NocioJ Received: from mail-ie0-f175.google.com (mail-ie0-f175.google.com [209.85.223.175]) by cuda.sgi.com with ESMTP id 475PQg80C0g52eTU (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 10 Sep 2014 08:32:18 -0700 (PDT) X-Barracuda-Envelope-From: neutrino8@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.223.175 X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.175] Received: by mail-ie0-f175.google.com with SMTP id at20so2360544iec.20 for ; Wed, 10 Sep 2014 08:32:17 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.175] X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.175] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=vvqOU3frlDZPTKqok4mpZtdZRi1SNw29lK7R2V1Bp28=; b=w7PSYkdFH96qQ90IFHaqhsUcJiSnwHPGLzbFPiRDGEnS8KK5xoxzHBIEV6/RJN28oG IJTpl8KlJeJ+9yof1zEUvRczgb/DUFZqmuydlnzNmQxP94vJ6hM/m/RnNk1FEkv5NeCP 0rHkp/oDB5xlnm45jrFd+keCZLLej8uBaUohxEvuBBIXnf2CjBedJoIJRMjnW15wDHe4 Ba6GkEcdVNaVKngKQD3YwAOnU7SbjOueuWtdEsRD0JoS9RyKieNDSwJcNPoCZUw3r3XT fyzaG8v+EIra1C7l+e46+xEovSleXJBJ8invGgCyUkz4o6SUslBcUq2M5tY44YgCRfoh bbhw== MIME-Version: 1.0 X-Received: by 10.50.33.16 with SMTP id n16mr755451igi.15.1410363137890; Wed, 10 Sep 2014 08:32:17 -0700 (PDT) Received: by 10.50.215.163 with HTTP; Wed, 10 Sep 2014 08:32:17 -0700 (PDT) In-Reply-To: <20140910171208.4b38807c@harpe.intellique.com> References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> <540FA586.9090308@mygrande.net> <540FACAC.3010504@mygrande.net> <20140910163124.3d879432@harpe.intellique.com> <20140910171208.4b38807c@harpe.intellique.com> Date: Wed, 10 Sep 2014 17:32:17 +0200 Message-ID: Subject: Re: Corrupted files From: Grozdan X-ASG-Orig-Subj: Re: Corrupted files To: Emmanuel Florac Cc: Leslie Rhorer , Sean Caron , "xfs@oss.sgi.com" Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail-ie0-f175.google.com[209.85.223.175] X-Barracuda-Start-Time: 1410363138 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9342 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Wed, Sep 10, 2014 at 5:12 PM, Emmanuel Florac w= rote: > Le Wed, 10 Sep 2014 16:52:27 +0200 > Grozdan =C3=A9crivait: > >> Funny, because our server (105 of them) all run on Seagate drives a >> few years now and I have yet to see one fail or cause other problems. >> But then again, we use Constellation disks, not Barracuda's. At home I >> also use both Barracuda's and Constellation ones and also have yet to >> see a problem with them. >> > > Yes, we replaced most failed Barracudas with Constellations at a > later stage (because the "certified repaired" Barracudas aren't any > better... ) and these work fine so far. However, why would I give > Seagate my hard-earned money after they cost me so dearly for years? :) Oh, you are correct about the money. If it happened to us I'll also think twice about that too. The biggest problems thus far we had were with Samsung disks. I haven't seen such a high fail rate in all my life. About 70% of the 100 disks we got failed within a year. Too bad Seagate took them over. I can only hope that Seagate's manufacturing an QA doesn't suffer because of that. > > -- > ------------------------------------------------------------------------ > Emmanuel Florac | Direction technique > | Intellique > | > | +33 1 78 94 84 02 > ------------------------------------------------------------------------ --=20 Yours truly From prarit@redhat.com Wed Sep 10 13:59:35 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 7DDE27F5D for ; Wed, 10 Sep 2014 13:59:35 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 4065C304048 for ; Wed, 10 Sep 2014 11:59:35 -0700 (PDT) X-ASG-Debug-ID: 1410375573-04cbb05487cae5e0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id UknskbPSjpiMDuop (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 10 Sep 2014 11:59:34 -0700 (PDT) X-Barracuda-Envelope-From: prarit@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8AIxWpm023264 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Wed, 10 Sep 2014 14:59:32 -0400 Received: from [10.16.186.145] (prarit-guest.khw.lab.eng.bos.redhat.com [10.16.186.145]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8AIxVda019918; Wed, 10 Sep 2014 14:59:31 -0400 Message-ID: <54109F93.9020206@redhat.com> Date: Wed, 10 Sep 2014 14:59:31 -0400 From: Prarit Bhargava User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20131028 Thunderbird/17.0.10 MIME-Version: 1.0 To: xfs@oss.sgi.com, Eric Sandeen Subject: lockdep warning when logging in with ssh Content-Type: text/plain; charset=ISO-8859-1 X-ASG-Orig-Subj: lockdep warning when logging in with ssh Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410375573 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 I see this when I attempt to login via ssh. I do not see it if I login on the serial console. I recall seeing it earlier when chasing another patch but cannot recall the kernel version. [ 201.054547] ====================================================== [ 201.082819] [ INFO: possible circular locking dependency detected ] [ 201.112071] 3.17.0-rc4+ #1 Not tainted [ 201.129705] ------------------------------------------------------- [ 201.158238] sshd/8554 is trying to acquire lock: [ 201.179054] (&isec->lock){+.+.+.}, at: [] inode_doinit_with_dentry+0xc5/0x670 [ 201.219847] [ 201.219847] but task is already holding lock: [ 201.247255] (&mm->mmap_sem){++++++}, at: [] vm_mmap_pgoff+0x8f/0xf0 [ 201.283640] [ 201.283640] which lock already depends on the new lock. [ 201.283640] [ 201.321218] [ 201.321218] the existing dependency chain (in reverse order) is: [ 201.356331] -> #2 (&mm->mmap_sem){++++++}: [ 201.377731] [] __lock_acquire+0x380/0xb50 [ 201.406027] [] lock_acquire+0x99/0x1d0 [ 201.432867] [] might_fault+0x8c/0xb0 [ 201.458823] [] filldir+0x91/0x120 [ 201.483514] [] xfs_dir2_block_getdents.isra.12+0x1be/0x220 [xfs] [ 201.521199] [] xfs_readdir+0x1a4/0x2a0 [xfs] [ 201.550249] [] xfs_file_readdir+0x2b/0x30 [xfs] [ 201.581293] [] iterate_dir+0xae/0x140 [ 201.607964] [] SyS_getdents+0x9d/0x130 [ 201.635824] [] system_call_fastpath+0x16/0x1b [ 201.665367] -> #1 (&xfs_dir_ilock_class){++++.+}: [ 201.687368] [] __lock_acquire+0x380/0xb50 [ 201.716063] [] lock_acquire+0x99/0x1d0 [ 201.743603] [] down_read_nested+0x57/0xa0 [ 201.771960] [] xfs_ilock+0x122/0x250 [xfs] [ 201.800555] [] xfs_ilock_attr_map_shared+0x34/0x40 [xfs] [ 201.834681] [] xfs_attr_get+0xc0/0x1b0 [xfs] [ 201.864877] [] xfs_xattr_get+0x3d/0x80 [xfs] [ 201.895005] [] generic_getxattr+0x4f/0x70 [ 201.923173] [] inode_doinit_with_dentry+0x172/0x670 [ 201.955329] [] sb_finish_set_opts+0xd8/0x270 [ 201.984446] [] selinux_set_mnt_opts+0x2cd/0x630 [ 202.015726] [] superblock_doinit+0x77/0xf0 [ 202.044073] [] delayed_superblock_init+0x10/0x20 [ 202.074967] [] iterate_supers+0xb2/0x110 [ 202.103173] [] selinux_complete_init+0x33/0x40 [ 202.133771] [] security_load_policy+0x103/0x620 [ 202.164131] [] sel_write_load+0xbb/0x780 [ 202.191891] [] vfs_write+0xba/0x1f0 [ 202.217918] [] SyS_write+0x58/0xd0 [ 202.243473] [] system_call_fastpath+0x16/0x1b [ 202.273205] -> #0 (&isec->lock){+.+.+.}: [ 202.292818] [] validate_chain.isra.43+0x10d9/0x1170 [ 202.324616] [] __lock_acquire+0x380/0xb50 [ 202.352176] [] lock_acquire+0x99/0x1d0 [ 202.379637] [] mutex_lock_nested+0x88/0x520 [ 202.408647] [] inode_doinit_with_dentry+0xc5/0x670 [ 202.440389] [] selinux_d_instantiate+0x1c/0x20 [ 202.470704] [] security_d_instantiate+0x1b/0x30 [ 202.501868] [] d_instantiate+0x50/0x70 [ 202.528664] [] __shmem_file_setup+0xef/0x1f0 [ 202.557658] [] shmem_zero_setup+0x28/0x70 [ 202.585826] [] mmap_region+0x522/0x610 [ 202.613190] [] do_mmap_pgoff+0x301/0x3d0 [ 202.641687] [] vm_mmap_pgoff+0xb0/0xf0 [ 202.668753] [] SyS_mmap_pgoff+0x116/0x290 [ 202.697026] [] SyS_mmap+0x22/0x30 [ 202.722424] [] system_call_fastpath+0x16/0x1b [ 202.751931] [ 202.751931] other info that might help us debug this: [ 202.751931] [ 202.788578] Chain exists of: &isec->lock --> &xfs_dir_ilock_class --> &mm->mmap_sem [ 202.824995] Possible unsafe locking scenario: [ 202.824995] [ 202.851334] CPU0 CPU1 [ 202.872186] ---- ---- [ 202.892929] lock(&mm->mmap_sem); [ 202.908542] lock(&xfs_dir_ilock_class); [ 202.938063] lock(&mm->mmap_sem); [ 202.964735] lock(&isec->lock); [ 202.979226] [ 202.979226] *** DEADLOCK *** [ 202.979226] [ 203.006150] 1 lock held by sshd/8554: [ 203.023836] #0: (&mm->mmap_sem){++++++}, at: [] vm_mmap_pgoff+0x8f/0xf0 [ 203.062439] [ 203.062439] stack backtrace: [ 203.082082] CPU: 1 PID: 8554 Comm: sshd Not tainted 3.17.0-rc4+ #1 [ 203.110336] Hardware name: HP ProLiant MicroServer Gen8, BIOS J06 08/24/2013 [ 203.143994] 0000000000000 00000000d8562903 ffff88006c333a58 ffffffff8171b358 [ 203.671383] ffffffff82accf70 ffff88006c333a98 ffffffff8171444a ffff88006c333ad0 [ 203.705097] ffff88003507b718 ffff88003507b718 0000000000000000 ffff88003507aa10 [ 203.738777] Call Trace: [ 203.749696] [] dump_stack+0x4d/0x66 [ 203.774113] [] print_circular_bug+0x1f9/0x207 [ 203.801532] [] validate_chain.isra.43+0x10d9/0x1170 [ 203.831325] [] __lock_acquire+0x380/0xb50 [ 203.857340] [] lock_acquire+0x99/0x1d0 [ 203.882653] [] ? inode_doinit_with_dentry+0xc5/0x670 [ 203.913148] [] mutex_lock_nested+0x88/0x520 [ 203.939761] [] ? inode_doinit_with_dentry+0xc5/0x670 [ 203.969908] [] ? inode_doinit_with_dentry+0xc5/0x670 [ 203.999854] [] ? native_sched_clock+0x35/0xa0 [ 204.029374] [] ? sched_clock+0x9/0x10 [ 204.053170] [] inode_doinit_with_dentry+0xc5/0x670 [ 204.181571] [] ? lock_release_holdtime.part.28+0xf/0x190 [ 204.213464] [] selinux_d_instantiate+0x1c/0x20 [ 204.241190] [] security_d_instantiate+0x1b/0x30 [ 204.269524] [] d_instantiate+0x50/0x70 [ 204.293826] [] __shmem_file_setup+0xef/0x1f0 [ 204.320845] [] shmem_zero_setup+0x28/0x70 [ 204.346843] [] mmap_region+0x522/0x610 [ 204.371943] [] do_mmap_pgoff+0x301/0x3d0 [ 204.398095] [] vm_mmap_pgoff+0xb0/0xf0 [ 204.422903] [] SyS_mmap_pgoff+0x116/0x290 [ 204.448487] [] ? trace_hardirqs_on+0xd/0x10 [ 204.475204] [] SyS_mmap+0x22/0x30 [ 204.498005] [] system_call_fastpath+0x16/0x1b [ 204.526495] [sched_delayed] sched: RT throttling activated From david@fromorbit.com Wed Sep 10 15:23:56 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 91D5C7F5F for ; Wed, 10 Sep 2014 15:23:56 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7275B8F804C for ; Wed, 10 Sep 2014 13:23:53 -0700 (PDT) X-ASG-Debug-ID: 1410380630-04cb6c54fe9ac930001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id qP7qB2DX4S8RPAe7 for ; Wed, 10 Sep 2014 13:23:51 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Am4jAJmyEFR5LKYhPGdsb2JhbABfgw2DVoUHqXIBAQEBAQEGmnCFagQCAYERFwUBAQEBODeEBAEFOhwjEAgDGAkNARcPBSUDBxoTiEG/LQEXGIVkiVEHEgGDHIEdBZoiglmZLSsvgQgHF4EpAQEB Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail05.adl6.internode.on.net with ESMTP; 11 Sep 2014 05:53:49 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XRoQe-0001T8-2x; Thu, 11 Sep 2014 06:23:48 +1000 Date: Thu, 11 Sep 2014 06:23:48 +1000 From: Dave Chinner To: Prarit Bhargava Cc: xfs@oss.sgi.com, Eric Sandeen Subject: Re: lockdep warning when logging in with ssh Message-ID: <20140910202348.GC27048@dastard> X-ASG-Orig-Subj: Re: lockdep warning when logging in with ssh References: <54109F93.9020206@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <54109F93.9020206@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1410380630 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9351 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Sep 10, 2014 at 02:59:31PM -0400, Prarit Bhargava wrote: > I see this when I attempt to login via ssh. I do not see it if I login on > the serial console. I recall seeing it earlier when chasing another patch but > cannot recall the kernel version. It's the shmem code that is broken - instantiating an inode while holding the mmap_sem inverts lock orders all over the place, especially in the security subsystem.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From prarit@redhat.com Wed Sep 10 17:40:32 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id BF2D87F61 for ; Wed, 10 Sep 2014 17:40:32 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id ADFDA8F8049 for ; Wed, 10 Sep 2014 15:40:29 -0700 (PDT) X-ASG-Debug-ID: 1410388825-04cb6c55009b2420001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id QYRgJzIJjwzVJVRD (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 10 Sep 2014 15:40:25 -0700 (PDT) X-Barracuda-Envelope-From: prarit@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8AMeGJF020806 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 10 Sep 2014 18:40:17 -0400 Received: from [10.16.186.145] (prarit-guest.khw.lab.eng.bos.redhat.com [10.16.186.145]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8AMeGXf006440; Wed, 10 Sep 2014 18:40:16 -0400 Message-ID: <5410D34F.1030404@redhat.com> Date: Wed, 10 Sep 2014 18:40:15 -0400 From: Prarit Bhargava User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20131028 Thunderbird/17.0.10 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com, Eric Sandeen Subject: Re: lockdep warning when logging in with ssh References: <54109F93.9020206@redhat.com> <20140910202348.GC27048@dastard> X-ASG-Orig-Subj: Re: lockdep warning when logging in with ssh In-Reply-To: <20140910202348.GC27048@dastard> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410388825 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 09/10/2014 04:23 PM, Dave Chinner wrote: > On Wed, Sep 10, 2014 at 02:59:31PM -0400, Prarit Bhargava wrote: >> I see this when I attempt to login via ssh. I do not see it if I login on >> the serial console. I recall seeing it earlier when chasing another patch but >> cannot recall the kernel version. > > It's the shmem code that is broken - instantiating an inode while > holding the mmap_sem inverts lock orders all over the place, > especially in the security subsystem.... > I'll send this off to Hugh Dickens then. P. > Cheers, > > Dave. > From lrhorer@mygrande.net Wed Sep 10 18:18:48 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id F332C7F63 for ; Wed, 10 Sep 2014 18:18:47 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 81D3CAC00A for ; Wed, 10 Sep 2014 16:18:44 -0700 (PDT) X-ASG-Debug-ID: 1410391122-04cb6c54fd9b3920001-NocioJ Received: from mail03.lsn.net (mail03.lsn.net [66.90.130.130]) by cuda.sgi.com with ESMTP id 83jgvj693yEk3yQt for ; Wed, 10 Sep 2014 16:18:42 -0700 (PDT) X-Barracuda-Envelope-From: lrhorer@mygrande.net X-Barracuda-Apparent-Source-IP: 66.90.130.130 Received: from [192.168.1.121] (24-155-170-173.dyn.grandenetworks.net [24.155.170.173]) (authenticated bits=0) by mail03.lsn.net (8.14.4/8.13.6) with ESMTP id s8ANIcNX009581 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Wed, 10 Sep 2014 18:18:39 -0500 X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.98.4 at av01.lsn.net Message-ID: <5410DC4E.90908@mygrande.net> Date: Wed, 10 Sep 2014 18:18:38 -0500 From: Leslie Rhorer User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Emmanuel Florac CC: Sean Caron , "xfs@oss.sgi.com" Subject: Re: Corrupted files References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> <540FA586.9090308@mygrande.net> <540FACAC.3010504@mygrande.net> <20140910163124.3d879432@harpe.intellique.com> X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: <20140910163124.3d879432@harpe.intellique.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Barracuda-Connect: mail03.lsn.net[66.90.130.130] X-Barracuda-Start-Time: 1410391122 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9355 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/10/2014 9:31 AM, Emmanuel Florac wrote: > Le Tue, 09 Sep 2014 20:43:08 -0500 > Leslie Rhorer écrivait: > >> None of the failed drives were WD green. All three and the >> previous four were Seagate. I realize that is not a large >> statistical sample. >> > > If you're interested in large statistical samples, on a grand total of > 4000 1 TB Seagate Barracuda ES2, I had to replace 2100 of them over the > course of 3 years. That's a good sized statistical sample. Oddly enough, perhaps, the ones that failed on me were also 1T Barracuda drives, and my failure rate was 40%. From sandeen@redhat.com Wed Sep 10 22:25:04 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0472D7F67 for ; Wed, 10 Sep 2014 22:25:04 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id C9796304043 for ; Wed, 10 Sep 2014 20:25:00 -0700 (PDT) X-ASG-Debug-ID: 1410405899-04bdf01097969030001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id oBQWN1TT1mUVIiI1 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 10 Sep 2014 20:24:59 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8B3OxHf020735 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Wed, 10 Sep 2014 23:24:59 -0400 Received: from liberator.sandeen.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8B3OvQE008598 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Wed, 10 Sep 2014 23:24:58 -0400 Message-ID: <54111610.4080604@redhat.com> Date: Wed, 10 Sep 2014 22:25:04 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss Subject: [PATCH] xfs_io: add mremap command Content-Type: text/plain; charset=utf-8; format=flowed X-ASG-Orig-Subj: [PATCH] xfs_io: add mremap command Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410405899 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 This adds a simple mremap command to xfs_io. It does not take a start address; it uses the existing start address, so the sized passed will be the new total size of the mapping. Signed-off-by: Eric Sandeen --- diff --git a/io/mmap.c b/io/mmap.c index ea7498f..565a541 100644 --- a/io/mmap.c +++ b/io/mmap.c @@ -29,6 +29,7 @@ static cmdinfo_t mread_cmd; static cmdinfo_t msync_cmd; static cmdinfo_t munmap_cmd; static cmdinfo_t mwrite_cmd; +static cmdinfo_t mremap_cmd; mmap_region_t *maptable; int mapcount; @@ -574,6 +575,66 @@ mwrite_f( return 0; } +static void +mremap_help(void) +{ + printf(_( +"\n" +" resizes the current memory mapping\n" +"\n" +" Examples:\n" +" 'mremap 8192' - resizes the current mapping to 8192 bytes.\n" +"\n" +" Resizes the mappping, growing or shrinking from the current size.\n" +" The default stored value is 'X', repeated to fill the range specified.\n" +" -f -- use the MREMAP_FIXED flag\n" +" -m -- use the MREMAP_MAYMOVE flag\n" +"\n")); +} + +int +mremap_f( + int argc, + char **argv) +{ + ssize_t new_length; + void *new_addr; + int flags = 0; + int c; + size_t blocksize, sectsize; + + while ((c = getopt(argc, argv, "fm")) != EOF) { + switch (c) { + case 'f': + flags = MREMAP_FIXED|MREMAP_MAYMOVE; + break; + case 'm': + flags = MREMAP_MAYMOVE; + break; + default: + return command_usage(&mremap_cmd); + } + } + + init_cvtnum(&blocksize, §size); + new_length = cvtnum(blocksize, sectsize, argv[optind]); + if (new_length < 0) { + printf(_("non-numeric offset argument -- %s\n"), + argv[optind]); + return 0; + } + + new_addr = mremap(mapping->addr, mapping->length, new_length, flags); + if (new_addr == MAP_FAILED) + perror("mremap"); + else { + mapping->addr = new_addr; + mapping->length = new_length; + } + + return 0; +} + void mmap_init(void) { @@ -628,9 +689,21 @@ mmap_init(void) _("writes data into a region in the current memory mapping"); mwrite_cmd.help = mwrite_help; + mremap_cmd.name = "mremap"; + mremap_cmd.altname = "mrm"; + mremap_cmd.cfunc = mremap_f; + mremap_cmd.argmin = 1; + mremap_cmd.argmax = 2; + mremap_cmd.flags = CMD_NOFILE_OK | CMD_FOREIGN_OK; + mremap_cmd.args = _("[-f|-m] newsize"); + mremap_cmd.oneline = + _("alters the size of the current memory mapping"); + mremap_cmd.help = mremap_help; + add_command(&mmap_cmd); add_command(&mread_cmd); add_command(&msync_cmd); add_command(&munmap_cmd); add_command(&mwrite_cmd); + add_command(&mremap_cmd); } diff --git a/man/man8/xfs_io.8 b/man/man8/xfs_io.8 index e1a3e1a..e40fbf9 100644 --- a/man/man8/xfs_io.8 +++ b/man/man8/xfs_io.8 @@ -501,6 +501,20 @@ See the .B mmap command. .TP +.BI "mremap [ \-f ] [ \-m ] " new_length +Changes the current mapping size to +.IR new_length . +Whether the mapping may be moved is controlled by the flags passed; +MREMAP_FIXED +.RB ( \-f ), +or MREMAP_MAYMOVE +.RB ( \-m ). +.TP +.B mrm +See the +.B mremap +command. +.TP .B munmap Unmaps the current memory mapping. .TP From sandeen@sandeen.net Wed Sep 10 22:29:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 146BC7F6F for ; Wed, 10 Sep 2014 22:29:39 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 974B9AC005 for ; Wed, 10 Sep 2014 20:29:35 -0700 (PDT) X-ASG-Debug-ID: 1410406170-04cbb05486cc3fd0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id xAuXNzCVqMYN2ZgF for ; Wed, 10 Sep 2014 20:29:30 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 19DC861F892F; Wed, 10 Sep 2014 22:29:30 -0500 (CDT) Message-ID: <5411171F.6010704@sandeen.net> Date: Wed, 10 Sep 2014 22:29:35 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Eric Sandeen , xfs-oss Subject: [PATCH V2] xfs_io: add mremap command References: <54111610.4080604@redhat.com> X-ASG-Orig-Subj: [PATCH V2] xfs_io: add mremap command In-Reply-To: <54111610.4080604@redhat.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410406170 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9360 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- This adds a simple mremap command to xfs_io. It does not take a start address; it uses the existing start address, so the sized passed will be the new total size of the mapping. Signed-off-by: Eric Sandeen --- V2: fix stray line in help. Why was it only visible after I sent V1... :/ diff --git a/io/mmap.c b/io/mmap.c index ea7498f..f1809e0 100644 --- a/io/mmap.c +++ b/io/mmap.c @@ -29,6 +29,7 @@ static cmdinfo_t mread_cmd; static cmdinfo_t msync_cmd; static cmdinfo_t munmap_cmd; static cmdinfo_t mwrite_cmd; +static cmdinfo_t mremap_cmd; mmap_region_t *maptable; int mapcount; @@ -574,6 +575,65 @@ mwrite_f( return 0; } +static void +mremap_help(void) +{ + printf(_( +"\n" +" resizes the current memory mapping\n" +"\n" +" Examples:\n" +" 'mremap 8192' - resizes the current mapping to 8192 bytes.\n" +"\n" +" Resizes the mappping, growing or shrinking from the current size.\n" +" -f -- use the MREMAP_FIXED flag\n" +" -m -- use the MREMAP_MAYMOVE flag\n" +"\n")); +} + +int +mremap_f( + int argc, + char **argv) +{ + ssize_t new_length; + void *new_addr; + int flags = 0; + int c; + size_t blocksize, sectsize; + + while ((c = getopt(argc, argv, "fm")) != EOF) { + switch (c) { + case 'f': + flags = MREMAP_FIXED|MREMAP_MAYMOVE; + break; + case 'm': + flags = MREMAP_MAYMOVE; + break; + default: + return command_usage(&mremap_cmd); + } + } + + init_cvtnum(&blocksize, §size); + new_length = cvtnum(blocksize, sectsize, argv[optind]); + if (new_length < 0) { + printf(_("non-numeric offset argument -- %s\n"), + argv[optind]); + return 0; + } + + new_addr = mremap(mapping->addr, mapping->length, new_length, flags); + if (new_addr == MAP_FAILED) + perror("mremap"); + else { + mapping->addr = new_addr; + mapping->length = new_length; + } + + return 0; +} + void mmap_init(void) { @@ -628,9 +688,21 @@ mmap_init(void) _("writes data into a region in the current memory mapping"); mwrite_cmd.help = mwrite_help; + mremap_cmd.name = "mremap"; + mremap_cmd.altname = "mrm"; + mremap_cmd.cfunc = mremap_f; + mremap_cmd.argmin = 1; + mremap_cmd.argmax = 2; + mremap_cmd.flags = CMD_NOFILE_OK | CMD_FOREIGN_OK; + mremap_cmd.args = _("[-m|-f] newsize"); + mremap_cmd.oneline = + _("alters the size of the current memory mapping"); + mremap_cmd.help = mremap_help; + add_command(&mmap_cmd); add_command(&mread_cmd); add_command(&msync_cmd); add_command(&munmap_cmd); add_command(&mwrite_cmd); + add_command(&mremap_cmd); } diff --git a/man/man8/xfs_io.8 b/man/man8/xfs_io.8 index e1a3e1a..e40fbf9 100644 --- a/man/man8/xfs_io.8 +++ b/man/man8/xfs_io.8 @@ -501,6 +501,20 @@ See the .B mmap command. .TP +.BI "mremap [ \-f ] [ \-m ] " new_length +Changes the current mapping size to +.IR new_length . +Whether the mapping may be moved is controlled by the flags passed; +MREMAP_FIXED +.RB ( \-f ), +or MREMAP_MAYMOVE +.RB ( \-m ). +.TP +.B mrm +See the +.B mremap +command. +.TP .B munmap Unmaps the current memory mapping. .TP From david@fromorbit.com Wed Sep 10 23:42:47 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id DAC4E7F6B for ; Wed, 10 Sep 2014 23:42:47 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id C6BB7304051 for ; Wed, 10 Sep 2014 21:42:47 -0700 (PDT) X-ASG-Debug-ID: 1410410565-04cbb05485cc5e70001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id ZBgByYRqE1SDDSIn for ; Wed, 10 Sep 2014 21:42:45 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AlsoAG4nEVR5LKYhPGdsb2JhbABggw2BKoczqX8BBQaYd4VqBAIBgQ0XBQEBAQE4N4QEAQEEOhwjEAgDDgoJJQ8FJQMHGhOIQb9FARcYhWSJUQeDL4EdAQSce5ktKy+CTwEBAQ Received: from ppp121-44-166-33.lns20.syd7.internode.on.net (HELO dastard) ([121.44.166.33]) by ipmail04.adl6.internode.on.net with ESMTP; 11 Sep 2014 14:12:44 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XRwDT-0002dP-8S; Thu, 11 Sep 2014 14:42:43 +1000 Date: Thu, 11 Sep 2014 14:42:43 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH v2 0/5] clean up collapse range and handle post-eof delalloc Message-ID: <20140911044243.GA10111@dastard> X-ASG-Orig-Subj: Re: [PATCH v2 0/5] clean up collapse range and handle post-eof delalloc References: <1410355231-50495-1-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1410355231-50495-1-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1410410565 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9361 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Sep 10, 2014 at 09:20:26AM -0400, Brian Foster wrote: > Hi all, > > Here's v2 of the collapse clean up. We refactor a bit more via the > insertion of patch 3, otherwise it's similar to v1. This will see some > continued testing, but it survived ~500m fsx operations overnight. > > Brian I'm not sure about the invalidation patch now. On a 1k block size filesystem, generic/127 fails with: +ltp/fsx -q -l 262144 -o 65536 -S 191110531 -N 100000 -R -W fsx_std_nommap +collapse range: 1000 to 3000 +do_collapse_range: fallocate: Device or resource busy which indicates we had an invalidation failure. This is probably exposing some other bug, but I haven't had time to look into it yet so I don't know. Cheers, Dave. -- Dave Chinner david@fromorbit.com From lrhorer@mygrande.net Thu Sep 11 00:48:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 723E37F6D for ; Thu, 11 Sep 2014 00:48:45 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 60042304043 for ; Wed, 10 Sep 2014 22:48:42 -0700 (PDT) X-ASG-Debug-ID: 1410414520-04cbb05487cc78f0001-NocioJ Received: from mail04.lsn.net (mail04.lsn.net [66.90.130.138]) by cuda.sgi.com with ESMTP id y7kOGmzUMoJvtGZu for ; Wed, 10 Sep 2014 22:48:40 -0700 (PDT) X-Barracuda-Envelope-From: lrhorer@mygrande.net X-Barracuda-Apparent-Source-IP: 66.90.130.138 Received: from [192.168.1.121] (24-155-170-173.dyn.grandenetworks.net [24.155.170.173]) (authenticated bits=0) by mail04.lsn.net (8.14.4/8.13.6) with ESMTP id s8B5lVCm031439 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Thu, 11 Sep 2014 00:47:32 -0500 X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.98.4 at av01.lsn.net Message-ID: <54113773.2090103@mygrande.net> Date: Thu, 11 Sep 2014 00:47:31 -0500 From: Leslie Rhorer User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com Subject: Re: Corrupted files References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> <540FA586.9090308@mygrande.net> <20140910015331.GJ20518@dastard> <540FC135.8010601@mygrande.net> <20140910033331.GA27048@dastard> <540FD8DE.7090306@mygrande.net> <20140910052303.GB27048@dastard> X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: <20140910052303.GB27048@dastard> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail04.lsn.net[66.90.130.138] X-Barracuda-Start-Time: 1410414520 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9363 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/10/2014 12:23 AM, Dave Chinner wrote: > On Tue, Sep 09, 2014 at 11:51:42PM -0500, Leslie Rhorer wrote: >> On 9/9/2014 10:33 PM, Dave Chinner wrote: >>> On Tue, Sep 09, 2014 at 10:10:45PM -0500, Leslie Rhorer wrote: >>>> On 9/9/2014 8:53 PM, Dave Chinner wrote: >>>>> On Tue, Sep 09, 2014 at 08:12:38PM -0500, Leslie Rhorer wrote: >>>>>> On 9/9/2014 5:06 PM, Dave Chinner wrote: >>>> I've never used git on a package maintained in my distro. Will I >>>> have issues when I upgrade to Debian Jessie in a few months, since >>>> this is not being managed by apt / dpkg? It looks like Jessie has >>>> 3.2.1 of xfs-progs. >>> >>> If you're using debian you can build debian packages directly from >>> the git tree via "make deb" (I use it all the time for pushing >>> new builds to my test machines) and so when you upgrade to Jessie it >>> should just replace your custom built package correctly... >> >> Thanks a ton, Dave (and everyone else who helped). That seems to >> have worked just fine. The three grunged entries are gone and the >> system is happily copying over the backups. Now I'll run another >> rsync with checksum to make sure everything is good before putting >> the backup into production. I'm also going to upgrade the >> controller BIOS just in case. > > Good to hear. Hopefully everything will check out. Just yell if you > need more help. ;) Thanks. The rsync compare just finished on the non-volatile areas of the file system without a single mismatch and no missing files. That's good enough for me. From greg.freemyer@gmail.com Thu Sep 11 08:24:50 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D046A7F73 for ; Thu, 11 Sep 2014 08:24:50 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 930058F8049 for ; Thu, 11 Sep 2014 06:24:47 -0700 (PDT) X-ASG-Debug-ID: 1410441884-04bdf010979a13b0001-NocioJ Received: from mail-we0-f180.google.com (mail-we0-f180.google.com [74.125.82.180]) by cuda.sgi.com with ESMTP id S4M6CqTJjUSatvaB (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Thu, 11 Sep 2014 06:24:45 -0700 (PDT) X-Barracuda-Envelope-From: greg.freemyer@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.180 Received: by mail-we0-f180.google.com with SMTP id t60so5671828wes.11 for ; Thu, 11 Sep 2014 06:24:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; bh=oQFXPUL5DZREmYDysv7l/4YAc9RBwdKaUQauG+KwLfk=; b=e9601iuexuBjoKqc86Ht6MDAxH2vFkd9ue1riw5HibgIq/VZMSHyLIoBYX5gCIhoMn xGMbpbv+O8sXyuG4DcLiuiG8/qtL8dLss3+UJYVBUrl9gHx6rpwhbh/mv92HcZanBNa1 lAPRmIzHS+ljDVRpFOuPAVR1gwJo/4wDaXZT3pTWFVGRnmzDwfmqWfWucgekYtX7cYra hy948bXbbXwKtCdGKp/mBplo3Ki/PDazxOZGgmuCJkoJ4f8MyUkwhnU+Sc04Cyf6ZHGT PQnx1rjdCRqogu9iF/4OuABd1wqSIlfUcdLPNQsGNp+OhlOzrs8OywT/IVZadqcZwpLr LrZQ== X-Received: by 10.194.209.205 with SMTP id mo13mr1419352wjc.122.1410441884645; Thu, 11 Sep 2014 06:24:44 -0700 (PDT) MIME-Version: 1.0 Received: by 10.180.10.102 with HTTP; Thu, 11 Sep 2014 06:24:04 -0700 (PDT) In-Reply-To: <20140910163124.3d879432@harpe.intellique.com> References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> <540FA586.9090308@mygrande.net> <540FACAC.3010504@mygrande.net> <20140910163124.3d879432@harpe.intellique.com> From: Greg Freemyer Date: Thu, 11 Sep 2014 09:24:04 -0400 Message-ID: Subject: Re: Corrupted files To: Emmanuel Florac X-ASG-Orig-Subj: Re: Corrupted files Cc: Leslie Rhorer , Sean Caron , "xfs@oss.sgi.com" Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail-we0-f180.google.com[74.125.82.180] X-Barracuda-Start-Time: 1410441885 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9370 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Wed, Sep 10, 2014 at 10:31 AM, Emmanuel Florac wrote: > Le Tue, 09 Sep 2014 20:43:08 -0500 > Leslie Rhorer =C3=A9crivait: > >> None of the failed drives were WD green. All three and the >> previous four were Seagate. I realize that is not a large >> statistical sample. >> > > If you're interested in large statistical samples, on a grand total of > 4000 1 TB Seagate Barracuda ES2, I had to replace 2100 of them over the > course of 3 years. I still have a couple of hundred of these > unfortunate pieces of crap in service, and they still represent the > vast majority of unexpected RAID malfunctions, urgent replacements, > late night calls and other "interesting side activities". > > I wouldn't buy anything labeled Seagate nowadays. Their drives have > been the baddest train wreck since the dreaded 9 GB Micropolis back in > 1994 (or was it 1995?). I buy about 100 drives a year, but I don't work them very hard. Just lots of data to store and I need to keep my data sets segregated for legal reasons. I don't use raid, just lots of individual disks and most data maintained redundantly. About 4 years ago (or maybe 5), Seagate had a catastrophic drive situation. I can remember buying a batch of 10 drives and having 8 of them fail in the first 2 months. The bad part was they mostly survived a 10 hour burn-in, so they tended to fail with real data on them. I had one case (at a minimum) that summer where I put the data on 3 different Seagate drives and all 3 failed. Fortunately, I was able to swap the disk controller card from one of the working drives with one of the dead drives and recover the data. Regardless, ignoring the summer of discontent, I find Seagate to be my preferred drives. fyi: In June I bought 30 or so WD elements drives to try them out. These are not the green drives, just bare bones WD drives. None of them were DOA, but 3 failed within 4 weeks, so a 10% failure rate in the first month. Only one of them had unique data on it, so I had to recreate that data. Fortunately the source of the data was still available. All of those drives have been pulled out of routine service. Greg From bfoster@redhat.com Thu Sep 11 10:20:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 797CE7F75 for ; Thu, 11 Sep 2014 10:20:21 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 4ABE78F8033 for ; Thu, 11 Sep 2014 08:20:18 -0700 (PDT) X-ASG-Debug-ID: 1410448816-04bdf010979af730001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id BNzBbiL5CUDIz561 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 11 Sep 2014 08:20:17 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8BFKEWt032665 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 11 Sep 2014 11:20:14 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8BFKEJl006218; Thu, 11 Sep 2014 11:20:14 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 1BAC01256F8; Thu, 11 Sep 2014 11:20:13 -0400 (EDT) Date: Thu, 11 Sep 2014 11:20:13 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH v2 0/5] clean up collapse range and handle post-eof delalloc Message-ID: <20140911152012.GB54638@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH v2 0/5] clean up collapse range and handle post-eof delalloc References: <1410355231-50495-1-git-send-email-bfoster@redhat.com> <20140911044243.GA10111@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911044243.GA10111@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410448817 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Sep 11, 2014 at 02:42:43PM +1000, Dave Chinner wrote: > On Wed, Sep 10, 2014 at 09:20:26AM -0400, Brian Foster wrote: > > Hi all, > > > > Here's v2 of the collapse clean up. We refactor a bit more via the > > insertion of patch 3, otherwise it's similar to v1. This will see some > > continued testing, but it survived ~500m fsx operations overnight. > > > > Brian > > I'm not sure about the invalidation patch now. On a 1k block size > filesystem, generic/127 fails with: > > +ltp/fsx -q -l 262144 -o 65536 -S 191110531 -N 100000 -R -W fsx_std_nommap > +collapse range: 1000 to 3000 > +do_collapse_range: fallocate: Device or resource busy > > which indicates we had an invalidation failure. This is probably > exposing some other bug, but I haven't had time to look into it yet > so I don't know. > Yeah, I can reproduce this as well, thanks. I think you're referring to the xfs_free_file_space() patch (5/5)..? FWIW, I don't see the problem without that patch, so it appears that the full pagecache truncate is still covering up a problem somewhere. I'll try to dig into it... Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com From bpm@sgi.com Thu Sep 11 15:37:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id F27057F77 for ; Thu, 11 Sep 2014 15:37:39 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id 845D3AC00D; Thu, 11 Sep 2014 13:37:36 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 099264266DC; Thu, 11 Sep 2014 15:37:36 -0500 (CDT) Date: Thu, 11 Sep 2014 15:37:35 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: olaf@sgi.com, tinguely@sgi.com Subject: [RFC] Unicode/UTF-8 support for XFS Message-ID: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-06-14) Hi, I'm posting this RFC on Olaf's behalf, as he is busy with other projects. First is a series of kernel patches, then a series of patches for xfsprogs, and then a test. Note that I have removed the unicode database files prior to posting due to their large size. There are instructions on how to download them in the relevant commit headers. Thanks, Ben Here are some notes of introduction from Olaf: ----------------------------------------------------------------------------- Unicode/UTF-8 support for XFS So we had a customer request proper unicode support... Design notes. XFS uses byte strings for filenames, so UTF-8 is the expected format for unicode filenames. This does raise the question what criteria a byte string must meet to be UTF-8. We settled on the following: - Valid unicode code points are 0..0x10FFFF, except that - The surrogates 0xD800..0xDFFF are not valid code points, and - Valid UTF-8 must be a shortest encoding of a valid unicode code point. In addition, U+0 (ASCII NUL, '\0') is used to terminate byte strings (and is itself not part of the string). Moreover strings may be length-limited in addition to being NUL-terminated (there is no such thing as an embedded NUL in a length-limited string). Based on feedback on the earlier patches for unicode/UTF-8 support, we decided that a filename that does not match the above criteria should be treated as a binary blob, as opposed to being rejected. To stress: if any part of the string isn't valid UTF-8, then the entire string is treated as a binary blob. This matters once normalization is considered. When comparing unicode strings for equality, normalization comes into play: we must compare the normalized forms of strings, not just the raw sequences of bytes. There are a number of defined normalization forms for unicode. We decided on a variant of NFKD we call NFKDI. NFD was chosed over NFC, because calculating NFC requires calculating NFD first, followed by an additional step. NFKD was chosen over NFD because this makes filenames that ought to be equal compare as equal. My favorite example is the ways "office" can be spelled, when "fi" or "ffi" ligatures are used. NFKDI adds one more step of NFKD, in that it eliminates the code points that have the Default_Ignorable_Code_Point property from the comparison. These code points are as a rule invisible, but might (or might not) be pulled in when you copy/paste a string to be used as a filename. An example of these is U+00AD SOFT HYPHEN, a code point that only shows up if a word is split across lines. If a filename is considered to be binary blob, comparison is based on a simple binary match. Normalization does not apply to any part of a blob. The code uses ("leverages", in corp-speak) the existing infrastructure for case-insensitive filenames. Like the CI code, the name used to create a file is stored on disk, and returned in a lookup. When comparing filenames the normalized forms of the names being compared are generated on the fly from the non-normalized forms stored on disk. If the borgbit (the bit enabling legacy ASCII-based CI) is set in the superblock, then case folding is added into the mix. This normalization form we call NFKDICF. It allows for the creation of case-insensitive filesystems with UTF-8 support. ----------------------------------------------------------------------------- Implementation notes. Strings are normalized using a trie that stores the relevant information. The trie itself is part of the XFS module, and about 250kB in size. The trie is not checked in: instead we add the source files from the Unicode Character Database and a program that creates the header containing the trie. The key for a lookup in the trie is a UTF-8 sequence. Each valid UTF-8 sequence leads to a leaf. No invalid sequence does. This means that trie lookups can be used to validate UTF-8 sequences, which why there is no specialized code for the same purpose. The trie contains information for the version of unicode in which each code point was defined. This matters because non-normalized strings are stored on disk, and newer versions of unicode may introduce new normalized forms. Ideally, the version of unicode used by the filesystem is stored in the filesystem. The trie also accounts for corrections made in the past to normalizations. This has little value today, because any newly created filesystem would be using unicode version 7.0.0. It is included in order to show, not tell, that such corrections can be handled if they are added in future revisions. The algorithm used to calculate the sequences of bytes for the normalized form of a UTF-8 string is tricky. The core is found in utf8byte(), with an explanation in the preceeding comment. The non-XFS-specific supporting code is in separate source files, and be put in some other location in the Linux kernel source tree, if desired. These functions have the prefix 'utf8n' if they handle length-limited strings, and 'utf8' if they handle NUL-terminated strings. ----------------------------------------------------------------------------- From bpm@sgi.com Thu Sep 11 15:40:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8BDE07F7B for ; Thu, 11 Sep 2014 15:40:13 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id 5BFF48F8040; Thu, 11 Sep 2014 13:40:10 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 257D84266DC; Thu, 11 Sep 2014 15:40:10 -0500 (CDT) Date: Thu, 11 Sep 2014 15:40:10 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 1/9] xfs: return the first match during case-insensitive lookup. Message-ID: <20140911204010.GA13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Change the XFS case-insensitive lookup code to return the first match found, even if it is not an exact match. Whether a filesystem uses case-insensitive lookups is determined by a superblock bit set during filesystem creation. This means that normal use cannot create two files that both match the same filename. Signed-off-by: Olaf Weber --- fs/xfs/libxfs/xfs_dir2_block.c | 17 +++------ fs/xfs/libxfs/xfs_dir2_leaf.c | 37 ++++---------------- fs/xfs/libxfs/xfs_dir2_node.c | 79 ++++++++++++++++-------------------------- fs/xfs/libxfs/xfs_dir2_sf.c | 8 ++--- 4 files changed, 45 insertions(+), 96 deletions(-) diff --git a/fs/xfs/libxfs/xfs_dir2_block.c b/fs/xfs/libxfs/xfs_dir2_block.c index 9628cec..990bf0c 100644 --- a/fs/xfs/libxfs/xfs_dir2_block.c +++ b/fs/xfs/libxfs/xfs_dir2_block.c @@ -725,28 +725,21 @@ xfs_dir2_block_lookup_int( dep = (xfs_dir2_data_entry_t *) ((char *)hdr + xfs_dir2_dataptr_to_off(args->geo, addr)); /* - * Compare name and if it's an exact match, return the index - * and buffer. If it's the first case-insensitive match, store - * the index and buffer and continue looking for an exact match. + * Compare name and if it's a match, return the + * index and buffer. */ cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen); - if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { + if (cmp != XFS_CMP_DIFFERENT) { args->cmpresult = cmp; *bpp = bp; *entno = mid; - if (cmp == XFS_CMP_EXACT) - return 0; + return 0; } } while (++mid < be32_to_cpu(btp->count) && be32_to_cpu(blp[mid].hashval) == hash); ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); - /* - * Here, we can only be doing a lookup (not a rename or replace). - * If a case-insensitive match was found earlier, return success. - */ - if (args->cmpresult == XFS_CMP_CASE) - return 0; + ASSERT(args->cmpresult == XFS_CMP_DIFFERENT); /* * No match, release the buffer and return ENOENT. */ diff --git a/fs/xfs/libxfs/xfs_dir2_leaf.c b/fs/xfs/libxfs/xfs_dir2_leaf.c index a19174e..3d572ee 100644 --- a/fs/xfs/libxfs/xfs_dir2_leaf.c +++ b/fs/xfs/libxfs/xfs_dir2_leaf.c @@ -1226,7 +1226,6 @@ xfs_dir2_leaf_lookup_int( xfs_mount_t *mp; /* filesystem mount point */ xfs_dir2_db_t newdb; /* new data block number */ xfs_trans_t *tp; /* transaction pointer */ - xfs_dir2_db_t cidb = -1; /* case match data block no. */ enum xfs_dacmp cmp; /* name compare result */ struct xfs_dir2_leaf_entry *ents; struct xfs_dir3_icleaf_hdr leafhdr; @@ -1290,46 +1289,22 @@ xfs_dir2_leaf_lookup_int( be32_to_cpu(lep->address))); /* * Compare name and if it's an exact match, return the index - * and buffer. If it's the first case-insensitive match, store - * the index and buffer and continue looking for an exact match. + * and buffer */ cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen); - if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { + if (cmp != XFS_CMP_DIFFERENT) { args->cmpresult = cmp; *indexp = index; - /* case exact match: return the current buffer. */ - if (cmp == XFS_CMP_EXACT) { - *dbpp = dbp; - return 0; - } - cidb = curdb; + *dbpp = dbp; + return 0; } } ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); - /* - * Here, we can only be doing a lookup (not a rename or remove). - * If a case-insensitive match was found earlier, re-read the - * appropriate data block if required and return it. - */ - if (args->cmpresult == XFS_CMP_CASE) { - ASSERT(cidb != -1); - if (cidb != curdb) { - xfs_trans_brelse(tp, dbp); - error = xfs_dir3_data_read(tp, dp, - xfs_dir2_db_to_da(args->geo, cidb), - -1, &dbp); - if (error) { - xfs_trans_brelse(tp, lbp); - return error; - } - } - *dbpp = dbp; - return 0; - } + ASSERT(args->cmpresult == XFS_CMP_DIFFERENT); + /* * No match found, return -ENOENT. */ - ASSERT(cidb == -1); if (dbp) xfs_trans_brelse(tp, dbp); xfs_trans_brelse(tp, lbp); diff --git a/fs/xfs/libxfs/xfs_dir2_node.c b/fs/xfs/libxfs/xfs_dir2_node.c index 2ae6ac2..1778c40 100644 --- a/fs/xfs/libxfs/xfs_dir2_node.c +++ b/fs/xfs/libxfs/xfs_dir2_node.c @@ -679,6 +679,7 @@ xfs_dir2_leafn_lookup_for_entry( xfs_dir2_data_entry_t *dep; /* data block entry */ xfs_inode_t *dp; /* incore directory inode */ int error; /* error return value */ + int di = -1; /* data entry index */ int index; /* leaf entry index */ xfs_dir2_leaf_t *leaf; /* leaf structure */ xfs_dir2_leaf_entry_t *lep; /* leaf entry */ @@ -709,6 +710,7 @@ xfs_dir2_leafn_lookup_for_entry( if (state->extravalid) { curbp = state->extrablk.bp; curdb = state->extrablk.blkno; + di = state->extrablk.index; } /* * Loop over leaf entries with the right hash value. @@ -734,28 +736,20 @@ xfs_dir2_leafn_lookup_for_entry( */ if (newdb != curdb) { /* - * If we had a block before that we aren't saving - * for a CI name, drop it + * If we had a block, drop it */ - if (curbp && (args->cmpresult == XFS_CMP_DIFFERENT || - curdb != state->extrablk.blkno)) + if (curbp) { xfs_trans_brelse(tp, curbp); + di = -1; + } /* - * If needing the block that is saved with a CI match, - * use it otherwise read in the new data block. + * Read in the new data block. */ - if (args->cmpresult != XFS_CMP_DIFFERENT && - newdb == state->extrablk.blkno) { - ASSERT(state->extravalid); - curbp = state->extrablk.bp; - } else { - error = xfs_dir3_data_read(tp, dp, - xfs_dir2_db_to_da(args->geo, - newdb), + error = xfs_dir3_data_read(tp, dp, + xfs_dir2_db_to_da(args->geo, newdb), -1, &curbp); - if (error) - return error; - } + if (error) + return error; xfs_dir3_data_check(dp, curbp); curdb = newdb; } @@ -766,53 +760,40 @@ xfs_dir2_leafn_lookup_for_entry( xfs_dir2_dataptr_to_off(args->geo, be32_to_cpu(lep->address))); /* - * Compare the entry and if it's an exact match, return - * EEXIST immediately. If it's the first case-insensitive - * match, store the block & inode number and continue looking. + * Compare the entry and if it's a match, return + * EEXIST immediately. */ cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen); - if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { - /* If there is a CI match block, drop it */ - if (args->cmpresult != XFS_CMP_DIFFERENT && - curdb != state->extrablk.blkno) - xfs_trans_brelse(tp, state->extrablk.bp); + if (cmp != XFS_CMP_DIFFERENT) { args->cmpresult = cmp; args->inumber = be64_to_cpu(dep->inumber); args->filetype = dp->d_ops->data_get_ftype(dep); - *indexp = index; - state->extravalid = 1; - state->extrablk.bp = curbp; - state->extrablk.blkno = curdb; - state->extrablk.index = (int)((char *)dep - - (char *)curbp->b_addr); - state->extrablk.magic = XFS_DIR2_DATA_MAGIC; curbp->b_ops = &xfs_dir3_data_buf_ops; xfs_trans_buf_set_type(tp, curbp, XFS_BLFT_DIR_DATA_BUF); - if (cmp == XFS_CMP_EXACT) - return -EEXIST; + di = (int)((char *)dep - (char *)curbp->b_addr); + error = -EEXIST; + goto out; + } } + /* Didn't find a match */ + error = -ENOENT; ASSERT(index == leafhdr.count || (args->op_flags & XFS_DA_OP_OKNOENT)); +out: if (curbp) { - if (args->cmpresult == XFS_CMP_DIFFERENT) { - /* Giving back last used data block. */ - state->extravalid = 1; - state->extrablk.bp = curbp; - state->extrablk.index = -1; - state->extrablk.blkno = curdb; - state->extrablk.magic = XFS_DIR2_DATA_MAGIC; - curbp->b_ops = &xfs_dir3_data_buf_ops; - xfs_trans_buf_set_type(tp, curbp, XFS_BLFT_DIR_DATA_BUF); - } else { - /* If the curbp is not the CI match block, drop it */ - if (state->extrablk.bp != curbp) - xfs_trans_brelse(tp, curbp); - } + /* Giving back last used data block. */ + state->extravalid = 1; + state->extrablk.bp = curbp; + state->extrablk.index = di; + state->extrablk.blkno = curdb; + state->extrablk.magic = XFS_DIR2_DATA_MAGIC; + curbp->b_ops = &xfs_dir3_data_buf_ops; + xfs_trans_buf_set_type(tp, curbp, XFS_BLFT_DIR_DATA_BUF); } else { state->extravalid = 0; } *indexp = index; - return -ENOENT; + return error; } /* diff --git a/fs/xfs/libxfs/xfs_dir2_sf.c b/fs/xfs/libxfs/xfs_dir2_sf.c index 5079e05..e69fdb7 100644 --- a/fs/xfs/libxfs/xfs_dir2_sf.c +++ b/fs/xfs/libxfs/xfs_dir2_sf.c @@ -757,19 +757,19 @@ xfs_dir2_sf_lookup( for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count; i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep)) { /* - * Compare name and if it's an exact match, return the inode - * number. If it's the first case-insensitive match, store the - * inode number and continue looking for an exact match. + * Compare name and if it's a match, return the inode + * number. */ cmp = dp->i_mount->m_dirnameops->compname(args, sfep->name, sfep->namelen); - if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { + if (cmp != XFS_CMP_DIFFERENT) { args->cmpresult = cmp; args->inumber = dp->d_ops->sf_get_ino(sfp, sfep); args->filetype = dp->d_ops->sf_get_ftype(sfep); if (cmp == XFS_CMP_EXACT) return -EEXIST; ci_sfep = sfep; + break; } } ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 15:41:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7FE167F7E for ; Thu, 11 Sep 2014 15:41:45 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id 516A68F8039; Thu, 11 Sep 2014 13:41:45 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 1A22A4266DC; Thu, 11 Sep 2014 15:41:45 -0500 (CDT) Date: Thu, 11 Sep 2014 15:41:45 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 2/9] xfs: rename XFS_CMP_CASE to XFS_CMP_MATCH Message-ID: <20140911204145.GB13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Rename XFS_CMP_CASE to XFS_CMP_MATCH. With unicode filenames and normalization, different strings will match on other criteria than case insensitivity. Signed-off-by: Olaf Weber --- fs/xfs/libxfs/xfs_da_btree.h | 2 +- fs/xfs/libxfs/xfs_dir2.c | 9 ++++++--- fs/xfs/libxfs/xfs_dir2_node.c | 2 +- 3 files changed, 8 insertions(+), 5 deletions(-) diff --git a/fs/xfs/libxfs/xfs_da_btree.h b/fs/xfs/libxfs/xfs_da_btree.h index 6e153e3..9ebcc23 100644 --- a/fs/xfs/libxfs/xfs_da_btree.h +++ b/fs/xfs/libxfs/xfs_da_btree.h @@ -52,7 +52,7 @@ struct xfs_da_geometry { enum xfs_dacmp { XFS_CMP_DIFFERENT, /* names are completely different */ XFS_CMP_EXACT, /* names are exactly the same */ - XFS_CMP_CASE /* names are same but differ in case */ + XFS_CMP_MATCH /* names are same but differ in encoding */ }; /* diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c index 6cef221..32e769b 100644 --- a/fs/xfs/libxfs/xfs_dir2.c +++ b/fs/xfs/libxfs/xfs_dir2.c @@ -74,7 +74,7 @@ xfs_ascii_ci_compname( continue; if (tolower(args->name[i]) != tolower(name[i])) return XFS_CMP_DIFFERENT; - result = XFS_CMP_CASE; + result = XFS_CMP_MATCH; } return result; @@ -315,8 +315,11 @@ xfs_dir_cilookup_result( { if (args->cmpresult == XFS_CMP_DIFFERENT) return -ENOENT; - if (args->cmpresult != XFS_CMP_CASE || - !(args->op_flags & XFS_DA_OP_CILOOKUP)) + if (args->cmpresult == XFS_CMP_EXACT) + return -EEXIST; + ASSERT(args->cmpresult == XFS_CMP_MATCH); + /* Only dup the found name if XFS_DA_OP_CILOOKUP is set. */ + if (!(args->op_flags & XFS_DA_OP_CILOOKUP)) return -EEXIST; args->value = kmem_alloc(len, KM_NOFS | KM_MAYFAIL); diff --git a/fs/xfs/libxfs/xfs_dir2_node.c b/fs/xfs/libxfs/xfs_dir2_node.c index 1778c40..9d46e8d 100644 --- a/fs/xfs/libxfs/xfs_dir2_node.c +++ b/fs/xfs/libxfs/xfs_dir2_node.c @@ -2023,7 +2023,7 @@ xfs_dir2_node_lookup( error = xfs_da3_node_lookup_int(state, &rval); if (error) rval = error; - else if (rval == -ENOENT && args->cmpresult == XFS_CMP_CASE) { + else if (rval == -ENOENT && args->cmpresult == XFS_CMP_MATCH) { /* If a CI match, dup the actual name and return -EEXIST */ xfs_dir2_data_entry_t *dep; -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 15:42:55 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id F05DC7F81 for ; Thu, 11 Sep 2014 15:42:55 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id B8D538F8037; Thu, 11 Sep 2014 13:42:55 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 855524266DC; Thu, 11 Sep 2014 15:42:55 -0500 (CDT) Date: Thu, 11 Sep 2014 15:42:55 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 3/9] xfs: add xfs_nameops.normhash Message-ID: <20140911204255.GC13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Add a normhash callout to the xfs_nameops. This callout takes an xfs_da_args structure as its argument, and calculates a hash value over the name. It may in the process create a normalized form of the name, and assign that to the norm/normlen fields in the xfs_da_args structure. Signed-off-by: Olaf Weber --- fs/xfs/libxfs/xfs_da_btree.c | 9 +++++++++ fs/xfs/libxfs/xfs_da_btree.h | 3 +++ fs/xfs/libxfs/xfs_dir2.c | 42 +++++++++++++++++++++++++++++++++++++----- 3 files changed, 49 insertions(+), 5 deletions(-) diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c index 2c42ae2..07a3acf 100644 --- a/fs/xfs/libxfs/xfs_da_btree.c +++ b/fs/xfs/libxfs/xfs_da_btree.c @@ -1990,8 +1990,17 @@ xfs_default_hashname( return xfs_da_hashname(name->name, name->len); } +STATIC int +xfs_da_normhash( + struct xfs_da_args *args) +{ + args->hashval = xfs_da_hashname(args->name, args->namelen); + return 0; +} + const struct xfs_nameops xfs_default_nameops = { .hashname = xfs_default_hashname, + .normhash = xfs_da_normhash, .compname = xfs_da_compname }; diff --git a/fs/xfs/libxfs/xfs_da_btree.h b/fs/xfs/libxfs/xfs_da_btree.h index 9ebcc23..6cdafee 100644 --- a/fs/xfs/libxfs/xfs_da_btree.h +++ b/fs/xfs/libxfs/xfs_da_btree.h @@ -61,7 +61,9 @@ enum xfs_dacmp { typedef struct xfs_da_args { struct xfs_da_geometry *geo; /* da block geometry */ const __uint8_t *name; /* string (maybe not NULL terminated) */ + const __uint8_t *norm; /* normalized name (may be NULL) */ int namelen; /* length of string (maybe no NULL) */ + int normlen; /* length of normalized name */ __uint8_t filetype; /* filetype of inode for directories */ __uint8_t *value; /* set of bytes (maybe contain NULLs) */ int valuelen; /* length of value */ @@ -150,6 +152,7 @@ typedef struct xfs_da_state { */ struct xfs_nameops { xfs_dahash_t (*hashname)(struct xfs_name *); + int (*normhash)(struct xfs_da_args *); enum xfs_dacmp (*compname)(struct xfs_da_args *, const unsigned char *, int); }; diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c index 32e769b..55733a6 100644 --- a/fs/xfs/libxfs/xfs_dir2.c +++ b/fs/xfs/libxfs/xfs_dir2.c @@ -56,6 +56,21 @@ xfs_ascii_ci_hashname( return hash; } +STATIC int +xfs_ascii_ci_normhash( + struct xfs_da_args *args) +{ + xfs_dahash_t hash; + int i; + + for (i = 0, hash = 0; i < args->namelen; i++) + hash = tolower(args->name[i]) ^ rol32(hash, 7); + + args->hashval = hash; + return 0; +} + + STATIC enum xfs_dacmp xfs_ascii_ci_compname( struct xfs_da_args *args, @@ -82,6 +97,7 @@ xfs_ascii_ci_compname( static struct xfs_nameops xfs_ascii_ci_nameops = { .hashname = xfs_ascii_ci_hashname, + .normhash = xfs_ascii_ci_normhash, .compname = xfs_ascii_ci_compname, }; @@ -267,7 +283,6 @@ xfs_dir_createname( args->name = name->name; args->namelen = name->len; args->filetype = name->type; - args->hashval = dp->i_mount->m_dirnameops->hashname(name); args->inumber = inum; args->dp = dp; args->firstblock = first; @@ -276,6 +291,8 @@ xfs_dir_createname( args->whichfork = XFS_DATA_FORK; args->trans = tp; args->op_flags = XFS_DA_OP_ADDNAME | XFS_DA_OP_OKNOENT; + if ((rval = dp->i_mount->m_dirnameops->normhash(args))) + goto out_free; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { rval = xfs_dir2_sf_addname(args); @@ -299,6 +316,8 @@ xfs_dir_createname( rval = xfs_dir2_node_addname(args); out_free: + if (args->norm) + kmem_free(args->norm); kmem_free(args); return rval; } @@ -365,13 +384,14 @@ xfs_dir_lookup( args->name = name->name; args->namelen = name->len; args->filetype = name->type; - args->hashval = dp->i_mount->m_dirnameops->hashname(name); args->dp = dp; args->whichfork = XFS_DATA_FORK; args->trans = tp; args->op_flags = XFS_DA_OP_OKNOENT; if (ci_name) args->op_flags |= XFS_DA_OP_CILOOKUP; + if ((rval = dp->i_mount->m_dirnameops->normhash(args))) + goto out_free; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { rval = xfs_dir2_sf_lookup(args); @@ -405,6 +425,9 @@ out_check_rval: } } out_free: + if (args->norm) + kmem_free(args->norm); + kmem_free(args); return rval; } @@ -437,7 +460,6 @@ xfs_dir_removename( args->name = name->name; args->namelen = name->len; args->filetype = name->type; - args->hashval = dp->i_mount->m_dirnameops->hashname(name); args->inumber = ino; args->dp = dp; args->firstblock = first; @@ -445,6 +467,8 @@ xfs_dir_removename( args->total = total; args->whichfork = XFS_DATA_FORK; args->trans = tp; + if ((rval = dp->i_mount->m_dirnameops->normhash(args))) + goto out_free; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { rval = xfs_dir2_sf_removename(args); @@ -467,6 +491,8 @@ xfs_dir_removename( else rval = xfs_dir2_node_removename(args); out_free: + if (args->norm) + kmem_free(args->norm); kmem_free(args); return rval; } @@ -502,7 +528,6 @@ xfs_dir_replace( args->name = name->name; args->namelen = name->len; args->filetype = name->type; - args->hashval = dp->i_mount->m_dirnameops->hashname(name); args->inumber = inum; args->dp = dp; args->firstblock = first; @@ -510,6 +535,8 @@ xfs_dir_replace( args->total = total; args->whichfork = XFS_DATA_FORK; args->trans = tp; + if ((rval = dp->i_mount->m_dirnameops->normhash(args))) + goto out_free; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { rval = xfs_dir2_sf_replace(args); @@ -532,6 +559,8 @@ xfs_dir_replace( else rval = xfs_dir2_node_replace(args); out_free: + if (args->norm) + kmem_free(args->norm); kmem_free(args); return rval; } @@ -564,12 +593,13 @@ xfs_dir_canenter( args->name = name->name; args->namelen = name->len; args->filetype = name->type; - args->hashval = dp->i_mount->m_dirnameops->hashname(name); args->dp = dp; args->whichfork = XFS_DATA_FORK; args->trans = tp; args->op_flags = XFS_DA_OP_JUSTCHECK | XFS_DA_OP_ADDNAME | XFS_DA_OP_OKNOENT; + if ((rval = dp->i_mount->m_dirnameops->normhash(args))) + goto out_free; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { rval = xfs_dir2_sf_addname(args); @@ -592,6 +622,8 @@ xfs_dir_canenter( else rval = xfs_dir2_node_addname(args); out_free: + if (args->norm) + kmem_free(args->norm); kmem_free(args); return rval; } -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 15:43:57 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 88DBE7F86 for ; Thu, 11 Sep 2014 15:43:57 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay2.corp.sgi.com (Postfix) with ESMTP id 336F3304032; Thu, 11 Sep 2014 13:43:57 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 05D524266DC; Thu, 11 Sep 2014 15:43:57 -0500 (CDT) Date: Thu, 11 Sep 2014 15:43:56 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 4/9] xfs: change interface of xfs_nameops.normhash Message-ID: <20140911204356.GD13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber With the introduction of the xfs_nameops.normhash callout, all uses of the hashname callout now occur in places where an xfs_name structure must be explicitly created just to match the parameter passing convention of this callout. Change the arguments to a const unsigned char * and int instead. Signed-off-by: Olaf Weber --- fs/xfs/libxfs/xfs_da_btree.c | 9 +-------- fs/xfs/libxfs/xfs_da_btree.h | 2 +- fs/xfs/libxfs/xfs_dir2.c | 7 ++++--- fs/xfs/libxfs/xfs_dir2_block.c | 2 +- fs/xfs/libxfs/xfs_dir2_data.c | 3 ++- 5 files changed, 9 insertions(+), 14 deletions(-) diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c index 07a3acf..a0608ca 100644 --- a/fs/xfs/libxfs/xfs_da_btree.c +++ b/fs/xfs/libxfs/xfs_da_btree.c @@ -1983,13 +1983,6 @@ xfs_da_compname( XFS_CMP_EXACT : XFS_CMP_DIFFERENT; } -static xfs_dahash_t -xfs_default_hashname( - struct xfs_name *name) -{ - return xfs_da_hashname(name->name, name->len); -} - STATIC int xfs_da_normhash( struct xfs_da_args *args) @@ -1999,7 +1992,7 @@ xfs_da_normhash( } const struct xfs_nameops xfs_default_nameops = { - .hashname = xfs_default_hashname, + .hashname = xfs_da_hashname, .normhash = xfs_da_normhash, .compname = xfs_da_compname }; diff --git a/fs/xfs/libxfs/xfs_da_btree.h b/fs/xfs/libxfs/xfs_da_btree.h index 6cdafee..4d6b36f 100644 --- a/fs/xfs/libxfs/xfs_da_btree.h +++ b/fs/xfs/libxfs/xfs_da_btree.h @@ -151,7 +151,7 @@ typedef struct xfs_da_state { * Name ops for directory and/or attr name operations */ struct xfs_nameops { - xfs_dahash_t (*hashname)(struct xfs_name *); + xfs_dahash_t (*hashname)(const unsigned char *, int); int (*normhash)(struct xfs_da_args *); enum xfs_dacmp (*compname)(struct xfs_da_args *, const unsigned char *, int); diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c index 55733a6..84e5ca9 100644 --- a/fs/xfs/libxfs/xfs_dir2.c +++ b/fs/xfs/libxfs/xfs_dir2.c @@ -45,13 +45,14 @@ struct xfs_name xfs_name_dotdot = { (unsigned char *)"..", 2, XFS_DIR3_FT_DIR }; */ STATIC xfs_dahash_t xfs_ascii_ci_hashname( - struct xfs_name *name) + const unsigned char *name, + int len) { xfs_dahash_t hash; int i; - for (i = 0, hash = 0; i < name->len; i++) - hash = tolower(name->name[i]) ^ rol32(hash, 7); + for (i = 0, hash = 0; i < len; i++) + hash = tolower(name[i]) ^ rol32(hash, 7); return hash; } diff --git a/fs/xfs/libxfs/xfs_dir2_block.c b/fs/xfs/libxfs/xfs_dir2_block.c index 990bf0c..f93c141 100644 --- a/fs/xfs/libxfs/xfs_dir2_block.c +++ b/fs/xfs/libxfs/xfs_dir2_block.c @@ -1231,7 +1231,7 @@ xfs_dir2_sf_to_block( name.name = sfep->name; name.len = sfep->namelen; blp[2 + i].hashval = cpu_to_be32(mp->m_dirnameops-> - hashname(&name)); + hashname(sfep->name, sfep->namelen)); blp[2 + i].address = cpu_to_be32(xfs_dir2_byte_to_dataptr( (char *)dep - (char *)hdr)); offset = (int)((char *)(tagp + 1) - (char *)hdr); diff --git a/fs/xfs/libxfs/xfs_dir2_data.c b/fs/xfs/libxfs/xfs_dir2_data.c index fdd803f..28c35cf 100644 --- a/fs/xfs/libxfs/xfs_dir2_data.c +++ b/fs/xfs/libxfs/xfs_dir2_data.c @@ -179,7 +179,8 @@ __xfs_dir3_data_check( ((char *)dep - (char *)hdr)); name.name = dep->name; name.len = dep->namelen; - hash = mp->m_dirnameops->hashname(&name); + hash = mp->m_dirnameops->hashname(dep->name, + dep->namelen); for (i = 0; i < be32_to_cpu(btp->count); i++) { if (be32_to_cpu(lep[i].address) == addr && be32_to_cpu(lep[i].hashval) == hash) -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 15:46:07 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 982DC7F85 for ; Thu, 11 Sep 2014 15:46:07 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id 18338AC00D; Thu, 11 Sep 2014 13:46:07 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id C81D44266DC; Thu, 11 Sep 2014 15:46:06 -0500 (CDT) Date: Thu, 11 Sep 2014 15:46:06 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 5/9] xfs: add a superblock feature bit to indicate UTF-8 support. Message-ID: <20140911204606.GE13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber When UTF-8 support is enabled, the xfs_dir_ci_inode_operations must be installed. Add xfs_sb_version_hasci(), which tests both the borgbit and the utf8bit, and returns true if at least one of them is set. Replace calls to xfs_sb_version_hasasciici() as needed. Signed-off-by: Olaf Weber --- fs/xfs/libxfs/xfs_sb.h | 24 +++++++++++++++++++++++- fs/xfs/xfs_fs.h | 1 + fs/xfs/xfs_fsops.c | 4 +++- fs/xfs/xfs_iops.c | 4 ++-- 4 files changed, 29 insertions(+), 4 deletions(-) diff --git a/fs/xfs/libxfs/xfs_sb.h b/fs/xfs/libxfs/xfs_sb.h index 2e73970..525eacb 100644 --- a/fs/xfs/libxfs/xfs_sb.h +++ b/fs/xfs/libxfs/xfs_sb.h @@ -70,6 +70,7 @@ struct xfs_trans; #define XFS_SB_VERSION2_RESERVED4BIT 0x00000004 #define XFS_SB_VERSION2_ATTR2BIT 0x00000008 /* Inline attr rework */ #define XFS_SB_VERSION2_PARENTBIT 0x00000010 /* parent pointers */ +#define XFS_SB_VERSION2_UTF8BIT 0x00000020 /* utf8 names */ #define XFS_SB_VERSION2_PROJID32BIT 0x00000080 /* 32 bit project id */ #define XFS_SB_VERSION2_CRCBIT 0x00000100 /* metadata CRCs */ #define XFS_SB_VERSION2_FTYPE 0x00000200 /* inode type in dir */ @@ -77,6 +78,7 @@ struct xfs_trans; #define XFS_SB_VERSION2_OKBITS \ (XFS_SB_VERSION2_LAZYSBCOUNTBIT | \ XFS_SB_VERSION2_ATTR2BIT | \ + XFS_SB_VERSION2_UTF8BIT | \ XFS_SB_VERSION2_PROJID32BIT | \ XFS_SB_VERSION2_FTYPE) @@ -509,8 +511,10 @@ xfs_sb_has_ro_compat_feature( } #define XFS_SB_FEAT_INCOMPAT_FTYPE (1 << 0) /* filetype in dirent */ +#define XFS_SB_FEAT_INCOMPAT_UTF8 (1 << 1) /* utf-8 name support */ #define XFS_SB_FEAT_INCOMPAT_ALL \ - (XFS_SB_FEAT_INCOMPAT_FTYPE) + (XFS_SB_FEAT_INCOMPAT_FTYPE | \ + XFS_SB_FEAT_INCOMPAT_UTF8) #define XFS_SB_FEAT_INCOMPAT_UNKNOWN ~XFS_SB_FEAT_INCOMPAT_ALL static inline bool @@ -558,6 +562,24 @@ static inline int xfs_sb_version_hasfinobt(xfs_sb_t *sbp) (sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_FINOBT); } +static inline int xfs_sb_version_hasutf8(xfs_sb_t *sbp) +{ + return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 && + xfs_sb_has_incompat_feature(sbp, XFS_SB_FEAT_INCOMPAT_UTF8)) || + (xfs_sb_version_hasmorebits(sbp) && + (sbp->sb_features2 & XFS_SB_VERSION2_UTF8BIT)); +} + +/* + * Special case: there are a number of places where we need to test + * both the borgbit and the utf8bit, and take the same action if + * either of those is set. + */ +static inline int xfs_sb_version_hasci(xfs_sb_t *sbp) +{ + return xfs_sb_version_hasasciici(sbp) || xfs_sb_version_hasutf8(sbp); +} + /* * end of superblock version macros */ diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h index 18dc721..e845d75 100644 --- a/fs/xfs/xfs_fs.h +++ b/fs/xfs/xfs_fs.h @@ -239,6 +239,7 @@ typedef struct xfs_fsop_resblks { #define XFS_FSOP_GEOM_FLAGS_V5SB 0x8000 /* version 5 superblock */ #define XFS_FSOP_GEOM_FLAGS_FTYPE 0x10000 /* inode directory types */ #define XFS_FSOP_GEOM_FLAGS_FINOBT 0x20000 /* free inode btree */ +#define XFS_FSOP_GEOM_FLAGS_UTF8 0x40000 /* utf8 filenames */ /* * Minimum and maximum sizes need for growth checks. diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index f91de1e..1a83eef 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -103,7 +103,9 @@ xfs_fs_geometry( (xfs_sb_version_hasftype(&mp->m_sb) ? XFS_FSOP_GEOM_FLAGS_FTYPE : 0) | (xfs_sb_version_hasfinobt(&mp->m_sb) ? - XFS_FSOP_GEOM_FLAGS_FINOBT : 0); + XFS_FSOP_GEOM_FLAGS_FINOBT : 0) | + (xfs_sb_version_hasutf8(&mp->m_sb) ? + XFS_FSOP_GEOM_FLAGS_UTF8 : 0); geo->logsectsize = xfs_sb_version_hassector(&mp->m_sb) ? mp->m_sb.sb_logsectsize : BBSIZE; geo->rtsectsize = mp->m_sb.sb_blocksize; diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index 7212949..cea3d64 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -335,9 +335,9 @@ xfs_vn_unlink( /* * With unlink, the VFS makes the dentry "negative": no inode, * but still hashed. This is incompatible with case-insensitive - * mode, so invalidate (unhash) the dentry in CI-mode. + * or utf8 mode, so invalidate (unhash) the dentry in CI-mode. */ - if (xfs_sb_version_hasasciici(&XFS_M(dir->i_sb)->m_sb)) + if (xfs_sb_version_hasci(&XFS_M(dir->i_sb)->m_sb)) d_invalidate(dentry); return 0; } -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 15:47:01 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 83AA97F77 for ; Thu, 11 Sep 2014 15:47:01 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id 547EA8F8037; Thu, 11 Sep 2014 13:47:01 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 126524266DC; Thu, 11 Sep 2014 15:47:01 -0500 (CDT) Date: Thu, 11 Sep 2014 15:47:01 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 6/9] xfs: add unicode character database files Message-ID: <20140911204700.GF13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Add files from the Unicode Character Database, version 7.0.0, to the source. A helper program that generates a trie used for normalization from these files is part of a separate commit. Signed-off-by: Olaf Weber --- [v2: Removed large unicode files prior to posting. Get them as below. -bpm] cd fs/xfs/support/ucd wget http://www.unicode.org/Public/7.0.0/ucd/CaseFolding.txt wget http://www.unicode.org/Public/7.0.0/ucd/DerivedAge.txt wget http://www.unicode.org/Public/7.0.0/ucd/extracted/DerivedCombiningClass.txt wget http://www.unicode.org/Public/7.0.0/ucd/DerivedCoreProperties.txt wget http://www.unicode.org/Public/7.0.0/ucd/NormalizationCorrections.txt wget http://www.unicode.org/Public/7.0.0/ucd/NormalizationTest.txt wget http://www.unicode.org/Public/7.0.0/ucd/UnicodeData.txt for e in *.txt do base=`basename $e .txt` mv $e $base-7.0.0.txt done --- fs/xfs/support/ucd/README | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 fs/xfs/support/ucd/README diff --git a/fs/xfs/support/ucd/README b/fs/xfs/support/ucd/README new file mode 100644 index 0000000..d713e66 --- /dev/null +++ b/fs/xfs/support/ucd/README @@ -0,0 +1,33 @@ +The files in this directory are part of the Unicode Character Database +for version 7.0.0 of the Unicode standard. + +The full set of files can be found here: + + http://www.unicode.org/Public/7.0.0/ucd/ + +The latest released version of the UCD can be found here: + + http://www.unicode.org/Public/UCD/latest/ + +The files in this directory are identical, except that they have been +renamed with a suffix indicating the unicode version. + +Individual source links: + + http://www.unicode.org/Public/7.0.0/ucd/CaseFolding.txt + http://www.unicode.org/Public/7.0.0/ucd/DerivedAge.txt + http://www.unicode.org/Public/7.0.0/ucd/extracted/DerivedCombiningClass.txt + http://www.unicode.org/Public/7.0.0/ucd/DerivedCoreProperties.txt + http://www.unicode.org/Public/7.0.0/ucd/NormalizationCorrections.txt + http://www.unicode.org/Public/7.0.0/ucd/NormalizationTest.txt + http://www.unicode.org/Public/7.0.0/ucd/UnicodeData.txt + +md5sums + + 9a92b2bfe56c6719def926bab524fefd CaseFolding-7.0.0.txt + 07b8b1027eb824cf0835314e94f23d2e DerivedAge-7.0.0.txt + 90c3340b16821e2f2153acdbe6fc6180 DerivedCombiningClass-7.0.0.txt + c41c0601f808116f623de47110ed4f93 DerivedCoreProperties-7.0.0.txt + 522720ddfc150d8e63a2518634829bce NormalizationCorrections-7.0.0.txt + 1f35175eba4a2ad795db489f789ae352 NormalizationTest-7.0.0.txt + c8355655731d75e6a3de8c20d7e601ba UnicodeData-7.0.0.txt -- 1.7.12.4 From ctest@reunionesecretariales.info Thu Sep 11 15:48:20 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE,MIME_QP_LONG_LINE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 954F07F89 for ; 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charset="utf-8" Content-Transfer-Encoding: quoted-printable =20 C=C3=93MO VENDER SUS PRODUCTOS a las GRANDES CADENAS COMERCIALES M=C3=A9xico, D.F. 03 de octubre 2014 Obtenga informaci=C3=B3n Completa (temario, precios, rese=C3=B1a del = instructor), =C3=BAnicamente responda "GC" + Nombre + Tel=C3=A9fono TEMARIO: 1. 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C=C3=93MO VENDER SUS PRODUCTOS a las GRANDES = CADENAS=20 COMERCIALES
M=C3=A9xico, D.F. 03 de octubre=20 = 2014

Obtenga = informaci=C3=B3n=20 Completa (temario, precios, rese=C3=B1a del instructor), = =C3=BAnicamente=20 responda "GC" + = Nombre +=20 = Tel=C3=A9fono

TEMARIO:
1. Con=20 qui=C3=A9n est=C3=A1 tratando.
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2.=20 =C2=BFSabe a lo que le tira?
a) Lo que debe saber de = su=20 cliente.
b) Cu=C3=A1l es la tienda ideal para su = producto.
c)=20 =C2=BFEst=C3=A1 listo su producto?
3. = Prepar=C3=A1ndose para el primer=20 contacto con su cliente.
a) Lo que debe saber de su=20 empresa.
b) Lo que debe saber de su producto.
c) = Lo que=20 debe saber de su competencia.
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5. El=20 momento de la verdad.
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7. = C=C3=B3mo saldr=C3=A1n sus=20 pedidos.
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Mayores informes e inscripci=C3=B3n, - = Solic=C3=ADtala=20 ya
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Si no = eres el=20 usuario o si deseas ser borrado:  xfs@oss.sgi.com =  de=20 nuestro listado de env=C3=ADos s=C3=B3lo responda con la = palabra (exf3)=20 y su solicitud ser=C3=A1 procesada en las pr=C3=B3ximas = 48=20 = hrs

 

------=SPLITOR00A_001_42516996D-- From bpm@sgi.com Thu Sep 11 15:48:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD, T_FILL_THIS_FORM_SHORT autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id A87B57F85 for ; Thu, 11 Sep 2014 15:48:18 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id EB926AC001; Thu, 11 Sep 2014 13:48:17 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 485F74266DC; Thu, 11 Sep 2014 15:48:17 -0500 (CDT) Date: Thu, 11 Sep 2014 15:48:17 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 7/9] xfs: add trie generator and supporting code for UTF-8. Message-ID: <20140911204817.GG13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber mkutf8data.c is the source for a program that generates utf8data.h, which contains the trie that utf8norm.c uses. The trie is generated from the Unicode 7.0.0 data files. The format of the utf8data[] table is described in utf8norm.c. Supporting functions for UTF-8 normalization are in utf8norm.c with the header utf8norm.h. Two normalization forms are supported: nfkdi and nfkdicf. nfkdi: - Apply unicode normalization form NFKD. - Remove any Default_Ignorable_Code_Point. nfkdicf: - Apply unicode normalization form NFKD. - Remove any Default_Ignorable_Code_Point. - Apply a full casefold (C + F). For the purposes of the code, a string is valid UTF-8 if: - The values encoded are 0x1..0x10FFFF. - The surrogate codepoints 0xD800..0xDFFFF are not encoded. - The shortest possible encoding is used for all values. The supporting functions work on null-terminated strings (utf8 prefix) and on length-limited strings (utf8n prefix). Signed-off-by: Olaf Weber --- fs/xfs/Makefile | 19 + fs/xfs/support/mkutf8data.c | 3239 +++++++++++++++++++++++++++++++++++++++++++ fs/xfs/support/utf8norm.c | 641 +++++++++ fs/xfs/support/utf8norm.h | 111 ++ 4 files changed, 4010 insertions(+) create mode 100644 fs/xfs/support/mkutf8data.c create mode 100644 fs/xfs/support/utf8norm.c create mode 100644 fs/xfs/support/utf8norm.h diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile index d617999..0f7b300 100644 --- a/fs/xfs/Makefile +++ b/fs/xfs/Makefile @@ -92,6 +92,25 @@ xfs-y += xfs_aops.o \ kmem.o \ uuid.o +# Objects in support/ +xfs-y += support/utf8norm.o + +hostprogs-y := support/mkutf8data +$(obj)/support/utf8norm.o: $(obj)/support/utf8data.h +$(obj)/support/utf8data.h: $(src)/support/ucd/*.txt +$(obj)/support/utf8data.h: $(obj)/support/mkutf8data FORCE + $(call if_changed,mkutf8data) +quiet_cmd_mkutf8data = MKUTF8DATA $@ + cmd_mkutf8data = $(obj)/support/mkutf8data \ + -a $(src)/support/ucd/DerivedAge-7.0.0.txt \ + -c $(src)/support/ucd/DerivedCombiningClass-7.0.0.txt \ + -p $(src)/support/ucd/DerivedCoreProperties-7.0.0.txt \ + -d $(src)/support/ucd/UnicodeData-7.0.0.txt \ + -f $(src)/support/ucd/CaseFolding-7.0.0.txt \ + -n $(src)/support/ucd/NormalizationCorrections-7.0.0.txt \ + -t $(src)/support/ucd/NormalizationTest-7.0.0.txt \ + -o $@ + # low-level transaction/log code xfs-y += xfs_log.o \ xfs_log_cil.o \ diff --git a/fs/xfs/support/mkutf8data.c b/fs/xfs/support/mkutf8data.c new file mode 100644 index 0000000..cff7a1e --- /dev/null +++ b/fs/xfs/support/mkutf8data.c @@ -0,0 +1,3239 @@ +/* + * Copyright (c) 2014 SGI. + * 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 + */ + +/* Generator for a compact trie for unicode normalization */ + +#include +#include +#include +#include +#include +#include +#include +#include + +/* Default names of the in- and output files. */ + +#define AGE_NAME "DerivedAge.txt" +#define CCC_NAME "DerivedCombiningClass.txt" +#define PROP_NAME "DerivedCoreProperties.txt" +#define DATA_NAME "UnicodeData.txt" +#define FOLD_NAME "CaseFolding.txt" +#define NORM_NAME "NormalizationCorrections.txt" +#define TEST_NAME "NormalizationTest.txt" +#define UTF8_NAME "utf8data.h" + +const char *age_name = AGE_NAME; +const char *ccc_name = CCC_NAME; +const char *prop_name = PROP_NAME; +const char *data_name = DATA_NAME; +const char *fold_name = FOLD_NAME; +const char *norm_name = NORM_NAME; +const char *test_name = TEST_NAME; +const char *utf8_name = UTF8_NAME; + +int verbose = 0; + +/* An arbitrary line size limit on input lines. */ + +#define LINESIZE 1024 +char line[LINESIZE]; +char buf0[LINESIZE]; +char buf1[LINESIZE]; +char buf2[LINESIZE]; +char buf3[LINESIZE]; + +const char *argv0; + +/* ------------------------------------------------------------------ */ + +/* + * Unicode version numbers consist of three parts: major, minor, and a + * revision. These numbers are packed into an unsigned int to obtain + * a single version number. + * + * To save space in the generated trie, the unicode version is not + * stored directly, instead we calculate a generation number from the + * unicode versions seen in the DerivedAge file, and use that as an + * index into a table of unicode versions. + */ +#define UNICODE_MAJ_SHIFT (16) +#define UNICODE_MIN_SHIFT (8) + +#define UNICODE_MAJ_MAX ((unsigned short)-1) +#define UNICODE_MIN_MAX ((unsigned char)-1) +#define UNICODE_REV_MAX ((unsigned char)-1) + +#define UNICODE_AGE(MAJ,MIN,REV) \ + (((unsigned int)(MAJ) << UNICODE_MAJ_SHIFT) | \ + ((unsigned int)(MIN) << UNICODE_MIN_SHIFT) | \ + ((unsigned int)(REV))) + +unsigned int *ages; +int ages_count; + +unsigned int unicode_maxage; + +static int +age_valid(unsigned int major, unsigned int minor, unsigned int revision) +{ + if (major > UNICODE_MAJ_MAX) + return 0; + if (minor > UNICODE_MIN_MAX) + return 0; + if (revision > UNICODE_REV_MAX) + return 0; + return 1; +} + +/* ------------------------------------------------------------------ */ + +/* + * utf8trie_t + * + * A compact binary tree, used to decode UTF-8 characters. + * + * Internal nodes are one byte for the node itself, and up to three + * bytes for an offset into the tree. The first byte contains the + * following information: + * NEXTBYTE - flag - advance to next byte if set + * BITNUM - 3 bit field - the bit number to tested + * OFFLEN - 2 bit field - number of bytes in the offset + * if offlen == 0 (non-branching node) + * RIGHTPATH - 1 bit field - set if the following node is for the + * right-hand path (tested bit is set) + * TRIENODE - 1 bit field - set if the following node is an internal + * node, otherwise it is a leaf node + * if offlen != 0 (branching node) + * LEFTNODE - 1 bit field - set if the left-hand node is internal + * RIGHTNODE - 1 bit field - set if the right-hand node is internal + * + * Due to the way utf8 works, there cannot be branching nodes with + * NEXTBYTE set, and moreover those nodes always have a righthand + * descendant. + */ +typedef unsigned char utf8trie_t; +#define BITNUM 0x07 +#define NEXTBYTE 0x08 +#define OFFLEN 0x30 +#define OFFLEN_SHIFT 4 +#define RIGHTPATH 0x40 +#define TRIENODE 0x80 +#define RIGHTNODE 0x40 +#define LEFTNODE 0x80 + +/* + * utf8leaf_t + * + * The leaves of the trie are embedded in the trie, and so the same + * underlying datatype, unsigned char. + * + * leaf[0]: The unicode version, stored as a generation number that is + * an index into utf8agetab[]. With this we can filter code + * points based on the unicode version in which they were + * defined. The CCC of a non-defined code point is 0. + * leaf[1]: Canonical Combining Class. During normalization, we need + * to do a stable sort into ascending order of all characters + * with a non-zero CCC that occur between two characters with + * a CCC of 0, or at the begin or end of a string. + * The unicode standard guarantees that all CCC values are + * between 0 and 254 inclusive, which leaves 255 available as + * a special value. + * Code points with CCC 0 are known as stoppers. + * leaf[2]: Decomposition. If leaf[1] == 255, then leaf[2] is the + * start of a NUL-terminated string that is the decomposition + * of the character. + * The CCC of a decomposable character is the same as the CCC + * of the first character of its decomposition. + * Some characters decompose as the empty string: these are + * characters with the Default_Ignorable_Code_Point property. + * These do affect normalization, as they all have CCC 0. + * + * The decompositions in the trie have been fully expanded. + * + * Casefolding, if applicable, is also done using decompositions. + */ +typedef unsigned char utf8leaf_t; + +#define LEAF_GEN(LEAF) ((LEAF)[0]) +#define LEAF_CCC(LEAF) ((LEAF)[1]) +#define LEAF_STR(LEAF) ((const char*)((LEAF) + 2)) + +#define MAXGEN (255) + +#define MINCCC (0) +#define MAXCCC (254) +#define STOPPER (0) +#define DECOMPOSE (255) + +struct tree; +static utf8leaf_t *utf8nlookup(struct tree *, const char *, size_t); +static utf8leaf_t *utf8lookup(struct tree *, const char *); + +unsigned char *utf8data; +size_t utf8data_size; + +utf8trie_t *nfkdi; +utf8trie_t *nfkdicf; + +/* ------------------------------------------------------------------ */ + +/* + * UTF8 valid ranges. + * + * The UTF-8 encoding spreads the bits of a 32bit word over several + * bytes. This table gives the ranges that can be held and how they'd + * be represented. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000000 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000000 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * There is an additional requirement on UTF-8, in that only the + * shortest representation of a 32bit value is to be used. A decoder + * must not decode sequences that do not satisfy this requirement. + * Thus the allowed ranges have a lower bound. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000080 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000800 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00010000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00200000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x04000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * Actual unicode characters are limited to the range 0x0 - 0x10FFFF, + * 17 planes of 65536 values. This limits the sequences actually seen + * even more, to just the following. + * + * 0 - 0x7f: 0 0x7f + * 0x80 - 0x7ff: 0xc2 0x80 0xdf 0xbf + * 0x800 - 0xffff: 0xe0 0xa0 0x80 0xef 0xbf 0xbf + * 0x10000 - 0x10ffff: 0xf0 0x90 0x80 0x80 0xf4 0x8f 0xbf 0xbf + * + * Even within those ranges not all values are allowed: the surrogates + * 0xd800 - 0xdfff should never be seen. + * + * Note that the longest sequence seen with valid usage is 4 bytes, + * the same a single UTF-32 character. This makes the UTF-8 + * representation of Unicode strictly smaller than UTF-32. + * + * The shortest sequence requirement was introduced by: + * Corrigendum #1: UTF-8 Shortest Form + * It can be found here: + * http://www.unicode.org/versions/corrigendum1.html + * + */ + +#define UTF8_2_BITS 0xC0 +#define UTF8_3_BITS 0xE0 +#define UTF8_4_BITS 0xF0 +#define UTF8_N_BITS 0x80 +#define UTF8_2_MASK 0xE0 +#define UTF8_3_MASK 0xF0 +#define UTF8_4_MASK 0xF8 +#define UTF8_N_MASK 0xC0 +#define UTF8_V_MASK 0x3F +#define UTF8_V_SHIFT 6 + +static int +utf8key(unsigned int key, char keyval[]) +{ + int keylen; + + if (key < 0x80) { + keyval[0] = key; + keylen = 1; + } else if (key < 0x800) { + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_2_BITS; + keylen = 2; + } else if (key < 0x10000) { + keyval[2] = key & UTF8_V_MASK; + keyval[2] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_3_BITS; + keylen = 3; + } else if (key < 0x110000) { + keyval[3] = key & UTF8_V_MASK; + keyval[3] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[2] = key & UTF8_V_MASK; + keyval[2] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_4_BITS; + keylen = 4; + } else { + printf("%#x: illegal key\n", key); + keylen = 0; + } + return keylen; +} + +static unsigned int +utf8code(const char *str) +{ + const unsigned char *s = (const unsigned char*)str; + unsigned int unichar = 0; + + if (*s < 0x80) { + unichar = *s; + } else if (*s < UTF8_3_BITS) { + unichar = *s++ & 0x1F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s & 0x3F; + } else if (*s < UTF8_4_BITS) { + unichar = *s++ & 0x0F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s++ & 0x3F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s & 0x3F; + } else { + unichar = *s++ & 0x0F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s++ & 0x3F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s++ & 0x3F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s & 0x3F; + } + return unichar; +} + +static int +utf32valid(unsigned int unichar) +{ + return unichar < 0x110000; +} + +#define NODE 1 +#define LEAF 0 + +struct tree { + void *root; + int childnode; + const char *type; + unsigned int maxage; + struct tree *next; + int (*leaf_equal)(void *, void *); + void (*leaf_print)(void *, int); + int (*leaf_mark)(void *); + int (*leaf_size)(void *); + int *(*leaf_index)(struct tree *, void *); + unsigned char *(*leaf_emit)(void *, unsigned char *); + int leafindex[0x110000]; + int index; +}; + +struct node { + int index; + int offset; + int mark; + int size; + struct node *parent; + void *left; + void *right; + unsigned char bitnum; + unsigned char nextbyte; + unsigned char leftnode; + unsigned char rightnode; + unsigned int keybits; + unsigned int keymask; +}; + +/* + * Example lookup function for a tree. + */ +static void * +lookup(struct tree *tree, const char *key) +{ + struct node *node; + void *leaf = NULL; + + node = tree->root; + while (!leaf && node) { + if (node->nextbyte) + key++; + if (*key & (1 << (node->bitnum & 7))) { + /* Right leg */ + if (node->rightnode == NODE) { + node = node->right; + } else if (node->rightnode == LEAF) { + leaf = node->right; + } else { + node = NULL; + } + } else { + /* Left leg */ + if (node->leftnode == NODE) { + node = node->left; + } else if (node->leftnode == LEAF) { + leaf = node->left; + } else { + node = NULL; + } + } + } + + return leaf; +} + +/* + * A simple non-recursive tree walker: keep track of visits to the + * left and right branches in the leftmask and rightmask. + */ +static void +tree_walk(struct tree *tree) +{ + struct node *node; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int indent = 1; + int nodes, singletons, leaves; + + nodes = singletons = leaves = 0; + + printf("%s_%x root %p\n", tree->type, tree->maxage, tree->root); + if (tree->childnode == LEAF) { + assert(tree->root); + tree->leaf_print(tree->root, indent); + leaves = 1; + } else { + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + printf("%*snode @ %p bitnum %d nextbyte %d" + " left %p right %p mask %x bits %x\n", + indent, "", node, + node->bitnum, node->nextbyte, + node->left, node->right, + node->keymask, node->keybits); + nodes += 1; + if (!(node->left && node->right)) + singletons += 1; + + while (node) { + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + tree->leaf_print(node->left, + indent+1); + leaves += 1; + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if ((rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + tree->leaf_print(node->right, + indent+1); + leaves += 1; + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + indent -= 1; + } + } + } + printf("nodes %d leaves %d singletons %d\n", + nodes, leaves, singletons); +} + +/* + * Allocate an initialize a new internal node. + */ +static struct node * +alloc_node(struct node *parent) +{ + struct node *node; + int bitnum; + + node = malloc(sizeof(*node)); + node->left = node->right = NULL; + node->parent = parent; + node->leftnode = NODE; + node->rightnode = NODE; + node->keybits = 0; + node->keymask = 0; + node->mark = 0; + node->index = 0; + node->offset = -1; + node->size = 4; + + if (node->parent) { + bitnum = parent->bitnum; + if ((bitnum & 7) == 0) { + node->bitnum = bitnum + 7 + 8; + node->nextbyte = 1; + } else { + node->bitnum = bitnum - 1; + node->nextbyte = 0; + } + } else { + node->bitnum = 7; + node->nextbyte = 0; + } + + return node; +} + +/* + * Insert a new leaf into the tree, and collapse any subtrees that are + * fully populated and end in identical leaves. A nextbyte tagged + * internal node will not be removed to preserve the tree's integrity. + * Note that due to the structure of utf8, no nextbyte tagged node + * will be a candidate for removal. + */ +static int +insert(struct tree *tree, char *key, int keylen, void *leaf) +{ + struct node *node; + struct node *parent; + void **cursor; + int keybits; + + assert(keylen >= 1 && keylen <= 4); + + node = NULL; + cursor = &tree->root; + keybits = 8 * keylen; + + /* Insert, creating path along the way. */ + while (keybits) { + if (!*cursor) + *cursor = alloc_node(node); + node = *cursor; + if (node->nextbyte) + key++; + if (*key & (1 << (node->bitnum & 7))) + cursor = &node->right; + else + cursor = &node->left; + keybits--; + } + *cursor = leaf; + + /* Merge subtrees if possible. */ + while (node) { + if (*key & (1 << (node->bitnum & 7))) + node->rightnode = LEAF; + else + node->leftnode = LEAF; + if (node->nextbyte) + break; + if (node->leftnode == NODE || node->rightnode == NODE) + break; + assert(node->left); + assert(node->right); + /* Compare */ + if (! tree->leaf_equal(node->left, node->right)) + break; + /* Keep left, drop right leaf. */ + leaf = node->left; + /* Check in parent */ + parent = node->parent; + if (!parent) { + /* root of tree! */ + tree->root = leaf; + tree->childnode = LEAF; + } else if (parent->left == node) { + parent->left = leaf; + parent->leftnode = LEAF; + if (parent->right) { + parent->keymask = 0; + parent->keybits = 0; + } else { + parent->keymask |= (1 << node->bitnum); + } + } else if (parent->right == node) { + parent->right = leaf; + parent->rightnode = LEAF; + if (parent->left) { + parent->keymask = 0; + parent->keybits = 0; + } else { + parent->keymask |= (1 << node->bitnum); + parent->keybits |= (1 << node->bitnum); + } + } else { + /* internal tree error */ + assert(0); + } + free(node); + node = parent; + } + + /* Propagate keymasks up along singleton chains. */ + while (node) { + parent = node->parent; + if (!parent) + break; + /* Nix the mask for parents with two children. */ + if (node->keymask == 0) { + parent->keymask = 0; + parent->keybits = 0; + } else if (parent->left && parent->right) { + parent->keymask = 0; + parent->keybits = 0; + } else { + assert((parent->keymask & node->keymask) == 0); + parent->keymask |= node->keymask; + parent->keymask |= (1 << parent->bitnum); + parent->keybits |= node->keybits; + if (parent->right) + parent->keybits |= (1 << parent->bitnum); + } + node = parent; + } + + return 0; +} + +/* + * Prune internal nodes. + * + * Fully populated subtrees that end at the same leaf have already + * been collapsed. There are still internal nodes that have for both + * their left and right branches a sequence of singletons that make + * identical choices and end in identical leaves. The keymask and + * keybits collected in the nodes describe the choices made in these + * singleton chains. When they are identical for the left and right + * branch of a node, and the two leaves comare identical, the node in + * question can be removed. + * + * Note that nodes with the nextbyte tag set will not be removed by + * this to ensure tree integrity. Note as well that the structure of + * utf8 ensures that these nodes would not have been candidates for + * removal in any case. + */ +static void +prune(struct tree *tree) +{ + struct node *node; + struct node *left; + struct node *right; + struct node *parent; + void *leftleaf; + void *rightleaf; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int count; + + if (verbose > 0) + printf("Pruning %s_%x\n", tree->type, tree->maxage); + + count = 0; + if (tree->childnode == LEAF) + return; + if (!tree->root) + return; + + leftmask = rightmask = 0; + node = tree->root; + while (node) { + if (node->nextbyte) + goto advance; + if (node->leftnode == LEAF) + goto advance; + if (node->rightnode == LEAF) + goto advance; + if (!node->left) + goto advance; + if (!node->right) + goto advance; + left = node->left; + right = node->right; + if (left->keymask == 0) + goto advance; + if (right->keymask == 0) + goto advance; + if (left->keymask != right->keymask) + goto advance; + if (left->keybits != right->keybits) + goto advance; + leftleaf = NULL; + while (!leftleaf) { + assert(left->left || left->right); + if (left->leftnode == LEAF) + leftleaf = left->left; + else if (left->rightnode == LEAF) + leftleaf = left->right; + else if (left->left) + left = left->left; + else if (left->right) + left = left->right; + else + assert(0); + } + rightleaf = NULL; + while (!rightleaf) { + assert(right->left || right->right); + if (right->leftnode == LEAF) + rightleaf = right->left; + else if (right->rightnode == LEAF) + rightleaf = right->right; + else if (right->left) + right = right->left; + else if (right->right) + right = right->right; + else + assert(0); + } + if (! tree->leaf_equal(leftleaf, rightleaf)) + goto advance; + /* + * This node has identical singleton-only subtrees. + * Remove it. + */ + parent = node->parent; + left = node->left; + right = node->right; + if (parent->left == node) + parent->left = left; + else if (parent->right == node) + parent->right = left; + else + assert(0); + left->parent = parent; + left->keymask |= (1 << node->bitnum); + node->left = NULL; + while (node) { + bitmask = 1 << node->bitnum; + leftmask &= ~bitmask; + rightmask &= ~bitmask; + if (node->leftnode == NODE && node->left) { + left = node->left; + free(node); + count++; + node = left; + } else if (node->rightnode == NODE && node->right) { + right = node->right; + free(node); + count++; + node = right; + } else { + node = NULL; + } + } + /* Propagate keymasks up along singleton chains. */ + node = parent; + /* Force re-check */ + bitmask = 1 << node->bitnum; + leftmask &= ~bitmask; + rightmask &= ~bitmask; + for (;;) { + if (node->left && node->right) + break; + if (node->left) { + left = node->left; + node->keymask |= left->keymask; + node->keybits |= left->keybits; + } + if (node->right) { + right = node->right; + node->keymask |= right->keymask; + node->keybits |= right->keybits; + } + node->keymask |= (1 << node->bitnum); + node = node->parent; + /* Force re-check */ + bitmask = 1 << node->bitnum; + leftmask &= ~bitmask; + rightmask &= ~bitmask; + } + advance: + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0 && + node->leftnode == NODE && + node->left) { + leftmask |= bitmask; + node = node->left; + } else if ((rightmask & bitmask) == 0 && + node->rightnode == NODE && + node->right) { + rightmask |= bitmask; + node = node->right; + } else { + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + } + } + if (verbose > 0) + printf("Pruned %d nodes\n", count); +} + +/* + * Mark the nodes in the tree that lead to leaves that must be + * emitted. + */ +static void +mark_nodes(struct tree *tree) +{ + struct node *node; + struct node *n; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int marked; + + marked = 0; + if (verbose > 0) + printf("Marking %s_%x\n", tree->type, tree->maxage); + if (tree->childnode == LEAF) + goto done; + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + if (tree->leaf_mark(node->left)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->left) { + assert(node->leftnode == NODE); + node = node->left; + continue; + } + } + if ((rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + if (tree->leaf_mark(node->right)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->right) { + assert(node->rightnode==NODE); + node = node->right; + continue; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + } + + /* second pass: left siblings and singletons */ + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + if (tree->leaf_mark(node->left)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->left) { + assert(node->leftnode == NODE); + node = node->left; + if (!node->mark && node->parent->mark) { + marked++; + node->mark = 1; + } + continue; + } + } + if ((rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + if (tree->leaf_mark(node->right)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->right) { + assert(node->rightnode==NODE); + node = node->right; + if (!node->mark && node->parent->mark && + !node->parent->left) { + marked++; + node->mark = 1; + } + continue; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + } +done: + if (verbose > 0) + printf("Marked %d nodes\n", marked); +} + +/* + * Compute the index of each node and leaf, which is the offset in the + * emitted trie. These value must be pre-computed because relative + * offsets between nodes are used to navigate the tree. + */ +static int +index_nodes(struct tree *tree, int index) +{ + struct node *node; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int count; + int indent; + + /* Align to a cache line (or half a cache line?). */ + while (index % 64) + index++; + tree->index = index; + indent = 1; + count = 0; + + if (verbose > 0) + printf("Indexing %s_%x: %d", tree->type, tree->maxage, index); + if (tree->childnode == LEAF) { + index += tree->leaf_size(tree->root); + goto done; + } + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + if (!node->mark) + goto skip; + count++; + if (node->index != index) + node->index = index; + index += node->size; +skip: + while (node) { + bitmask = 1 << node->bitnum; + if (node->mark && (leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + *tree->leaf_index(tree, node->left) = + index; + index += tree->leaf_size(node->left); + count++; + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if (node->mark && (rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + *tree->leaf_index(tree, node->right) = index; + index += tree->leaf_size(node->right); + count++; + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + indent -= 1; + } + } +done: + /* Round up to a multiple of 16 */ + while (index % 16) + index++; + if (verbose > 0) + printf("Final index %d\n", index); + return index; +} + +/* + * Compute the size of nodes and leaves. We start by assuming that + * each node needs to store a three-byte offset. The indexes of the + * nodes are calculated based on that, and then this function is + * called to see if the sizes of some nodes can be reduced. This is + * repeated until no more changes are seen. + */ +static int +size_nodes(struct tree *tree) +{ + struct tree *next; + struct node *node; + struct node *right; + struct node *n; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + unsigned int pathbits; + unsigned int pathmask; + int changed; + int offset; + int size; + int indent; + + indent = 1; + changed = 0; + size = 0; + + if (verbose > 0) + printf("Sizing %s_%x", tree->type, tree->maxage); + if (tree->childnode == LEAF) + goto done; + + assert(tree->childnode == NODE); + pathbits = 0; + pathmask = 0; + node = tree->root; + leftmask = rightmask = 0; + while (node) { + if (!node->mark) + goto skip; + offset = 0; + if (!node->left || !node->right) { + size = 1; + } else { + if (node->rightnode == NODE) { + right = node->right; + next = tree->next; + while (!right->mark) { + assert(next); + n = next->root; + while (n->bitnum != node->bitnum) { + if (pathbits & (1<bitnum)) + n = n->right; + else + n = n->left; + } + n = n->right; + assert(right->bitnum == n->bitnum); + right = n; + next = next->next; + } + offset = right->index - node->index; + } else { + offset = *tree->leaf_index(tree, node->right); + offset -= node->index; + } + assert(offset >= 0); + assert(offset <= 0xffffff); + if (offset <= 0xff) { + size = 2; + } else if (offset <= 0xffff) { + size = 3; + } else { /* offset <= 0xffffff */ + size = 4; + } + } + if (node->size != size || node->offset != offset) { + node->size = size; + node->offset = offset; + changed++; + } +skip: + while (node) { + bitmask = 1 << node->bitnum; + pathmask |= bitmask; + if (node->mark && (leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if (node->mark && (rightmask & bitmask) == 0) { + rightmask |= bitmask; + pathbits |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + pathmask &= ~bitmask; + pathbits &= ~bitmask; + node = node->parent; + indent -= 1; + } + } +done: + if (verbose > 0) + printf("Found %d changes\n", changed); + return changed; +} + +/* + * Emit a trie for the given tree into the data array. + */ +static void +emit(struct tree *tree, unsigned char *data) +{ + struct node *node; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int offlen; + int offset; + int index; + int indent; + unsigned char byte; + + index = tree->index; + data += index; + indent = 1; + if (verbose > 0) + printf("Emitting %s_%x\n", tree->type, tree->maxage); + if (tree->childnode == LEAF) { + assert(tree->root); + tree->leaf_emit(tree->root, data); + return; + } + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + if (!node->mark) + goto skip; + assert(node->offset != -1); + assert(node->index == index); + + byte = 0; + if (node->nextbyte) + byte |= NEXTBYTE; + byte |= (node->bitnum & BITNUM); + if (node->left && node->right) { + if (node->leftnode == NODE) + byte |= LEFTNODE; + if (node->rightnode == NODE) + byte |= RIGHTNODE; + if (node->offset <= 0xff) + offlen = 1; + else if (node->offset <= 0xffff) + offlen = 2; + else + offlen = 3; + offset = node->offset; + byte |= offlen << OFFLEN_SHIFT; + *data++ = byte; + index++; + while (offlen--) { + *data++ = offset & 0xff; + index++; + offset >>= 8; + } + } else if (node->left) { + if (node->leftnode == NODE) + byte |= TRIENODE; + *data++ = byte; + index++; + } else if (node->right) { + byte |= RIGHTNODE; + if (node->rightnode == NODE) + byte |= TRIENODE; + *data++ = byte; + index++; + } else { + assert(0); + } +skip: + while (node) { + bitmask = 1 << node->bitnum; + if (node->mark && (leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + data = tree->leaf_emit(node->left, + data); + index += tree->leaf_size(node->left); + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if (node->mark && (rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + data = tree->leaf_emit(node->right, + data); + index += tree->leaf_size(node->right); + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + indent -= 1; + } + } +} + +/* ------------------------------------------------------------------ */ + +/* + * Unicode data. + * + * We need to keep track of the Canonical Combining Class, the Age, + * and decompositions for a code point. + * + * For the Age, we store the index into the ages table. Effectively + * this is a generation number that the table maps to a unicode + * version. + * + * The correction field is used to indicate that this entry is in the + * corrections array, which contains decompositions that were + * corrected in later revisions. The value of the correction field is + * the Unicode version in which the mapping was corrected. + */ +struct unicode_data { + unsigned int code; + int ccc; + int gen; + int correction; + unsigned int *utf32nfkdi; + unsigned int *utf32nfkdicf; + char *utf8nfkdi; + char *utf8nfkdicf; +}; + +struct unicode_data unicode_data[0x110000]; +struct unicode_data *corrections; +int corrections_count; + +struct tree *nfkdi_tree; +struct tree *nfkdicf_tree; + +struct tree *trees; +int trees_count; + +/* + * Check the corrections array to see if this entry was corrected at + * some point. + */ +static struct unicode_data * +corrections_lookup(struct unicode_data *u) +{ + int i; + + for (i = 0; i != corrections_count; i++) + if (u->code == corrections[i].code) + return &corrections[i]; + return u; +} + +static int +nfkdi_equal(void *l, void *r) +{ + struct unicode_data *left = l; + struct unicode_data *right = r; + + if (left->gen != right->gen) + return 0; + if (left->ccc != right->ccc) + return 0; + if (left->utf8nfkdi && right->utf8nfkdi && + strcmp(left->utf8nfkdi, right->utf8nfkdi) == 0) + return 1; + if (left->utf8nfkdi || right->utf8nfkdi) + return 0; + return 1; +} + +static int +nfkdicf_equal(void *l, void *r) +{ + struct unicode_data *left = l; + struct unicode_data *right = r; + + if (left->gen != right->gen) + return 0; + if (left->ccc != right->ccc) + return 0; + if (left->utf8nfkdicf && right->utf8nfkdicf && + strcmp(left->utf8nfkdicf, right->utf8nfkdicf) == 0) + return 1; + if (left->utf8nfkdicf && right->utf8nfkdicf) + return 0; + if (left->utf8nfkdicf || right->utf8nfkdicf) + return 0; + if (left->utf8nfkdi && right->utf8nfkdi && + strcmp(left->utf8nfkdi, right->utf8nfkdi) == 0) + return 1; + if (left->utf8nfkdi || right->utf8nfkdi) + return 0; + return 1; +} + +static void +nfkdi_print(void *l, int indent) +{ + struct unicode_data *leaf = l; + + printf("%*sleaf @ %p code %X ccc %d gen %d", indent, "", leaf, + leaf->code, leaf->ccc, leaf->gen); + if (leaf->utf8nfkdi) + printf(" nfkdi \"%s\"", (const char*)leaf->utf8nfkdi); + printf("\n"); +} + +static void +nfkdicf_print(void *l, int indent) +{ + struct unicode_data *leaf = l; + + printf("%*sleaf @ %p code %X ccc %d gen %d", indent, "", leaf, + leaf->code, leaf->ccc, leaf->gen); + if (leaf->utf8nfkdicf) + printf(" nfkdicf \"%s\"", (const char*)leaf->utf8nfkdicf); + else if (leaf->utf8nfkdi) + printf(" nfkdi \"%s\"", (const char*)leaf->utf8nfkdi); + printf("\n"); +} + +static int +nfkdi_mark(void *l) +{ + return 1; +} + +static int +nfkdicf_mark(void *l) +{ + struct unicode_data *leaf = l; + + if (leaf->utf8nfkdicf) + return 1; + return 0; +} + +static int +correction_mark(void *l) +{ + struct unicode_data *leaf = l; + + return leaf->correction; +} + +static int +nfkdi_size(void *l) +{ + struct unicode_data *leaf = l; + + int size = 2; + if (leaf->utf8nfkdi) + size += strlen(leaf->utf8nfkdi) + 1; + return size; +} + +static int +nfkdicf_size(void *l) +{ + struct unicode_data *leaf = l; + + int size = 2; + if (leaf->utf8nfkdicf) + size += strlen(leaf->utf8nfkdicf) + 1; + else if (leaf->utf8nfkdi) + size += strlen(leaf->utf8nfkdi) + 1; + return size; +} + +static int * +nfkdi_index(struct tree *tree, void *l) +{ + struct unicode_data *leaf = l; + + return &tree->leafindex[leaf->code]; +} + +static int * +nfkdicf_index(struct tree *tree, void *l) +{ + struct unicode_data *leaf = l; + + return &tree->leafindex[leaf->code]; +} + +static unsigned char * +nfkdi_emit(void *l, unsigned char *data) +{ + struct unicode_data *leaf = l; + unsigned char *s; + + *data++ = leaf->gen; + if (leaf->utf8nfkdi) { + *data++ = DECOMPOSE; + s = (unsigned char*)leaf->utf8nfkdi; + while ((*data++ = *s++) != 0) + ; + } else { + *data++ = leaf->ccc; + } + return data; +} + +static unsigned char * +nfkdicf_emit(void *l, unsigned char *data) +{ + struct unicode_data *leaf = l; + unsigned char *s; + + *data++ = leaf->gen; + if (leaf->utf8nfkdicf) { + *data++ = DECOMPOSE; + s = (unsigned char*)leaf->utf8nfkdicf; + while ((*data++ = *s++) != 0) + ; + } else if (leaf->utf8nfkdi) { + *data++ = DECOMPOSE; + s = (unsigned char*)leaf->utf8nfkdi; + while ((*data++ = *s++) != 0) + ; + } else { + *data++ = leaf->ccc; + } + return data; +} + +static void +utf8_create(struct unicode_data *data) +{ + char utf[18*4+1]; + char *u; + unsigned int *um; + int i; + + u = utf; + um = data->utf32nfkdi; + if (um) { + for (i = 0; um[i]; i++) + u += utf8key(um[i], u); + *u = '\0'; + data->utf8nfkdi = strdup((char*)utf); + } + u = utf; + um = data->utf32nfkdicf; + if (um) { + for (i = 0; um[i]; i++) + u += utf8key(um[i], u); + *u = '\0'; + if (!data->utf8nfkdi || strcmp(data->utf8nfkdi, (char*)utf)) + data->utf8nfkdicf = strdup((char*)utf); + } +} + +static void +utf8_init(void) +{ + unsigned int unichar; + int i; + + for (unichar = 0; unichar != 0x110000; unichar++) + utf8_create(&unicode_data[unichar]); + + for (i = 0; i != corrections_count; i++) + utf8_create(&corrections[i]); +} + +static void +trees_init(void) +{ + struct unicode_data *data; + unsigned int maxage; + unsigned int nextage; + int count; + int i; + int j; + + /* Count the number of different ages. */ + count = 0; + nextage = (unsigned int)-1; + do { + maxage = nextage; + nextage = 0; + for (i = 0; i <= corrections_count; i++) { + data = &corrections[i]; + if (nextage < data->correction && + data->correction < maxage) + nextage = data->correction; + } + count++; + } while (nextage); + + /* Two trees per age: nfkdi and nfkdicf */ + trees_count = count * 2; + trees = calloc(trees_count, sizeof(struct tree)); + + /* Assign ages to the trees. */ + count = trees_count; + nextage = (unsigned int)-1; + do { + maxage = nextage; + trees[--count].maxage = maxage; + trees[--count].maxage = maxage; + nextage = 0; + for (i = 0; i <= corrections_count; i++) { + data = &corrections[i]; + if (nextage < data->correction && + data->correction < maxage) + nextage = data->correction; + } + } while (nextage); + + /* The ages assigned above are off by one. */ + for (i = 0; i != trees_count; i++) { + j = 0; + while (ages[j] < trees[i].maxage) + j++; + trees[i].maxage = ages[j-1]; + } + + /* Set up the forwarding between trees. */ + trees[trees_count-2].next = &trees[trees_count-1]; + trees[trees_count-1].leaf_mark = nfkdi_mark; + trees[trees_count-2].leaf_mark = nfkdicf_mark; + for (i = 0; i != trees_count-2; i += 2) { + trees[i].next = &trees[trees_count-2]; + trees[i].leaf_mark = correction_mark; + trees[i+1].next = &trees[trees_count-1]; + trees[i+1].leaf_mark = correction_mark; + } + + /* Assign the callouts. */ + for (i = 0; i != trees_count; i += 2) { + trees[i].type = "nfkdicf"; + trees[i].leaf_equal = nfkdicf_equal; + trees[i].leaf_print = nfkdicf_print; + trees[i].leaf_size = nfkdicf_size; + trees[i].leaf_index = nfkdicf_index; + trees[i].leaf_emit = nfkdicf_emit; + + trees[i+1].type = "nfkdi"; + trees[i+1].leaf_equal = nfkdi_equal; + trees[i+1].leaf_print = nfkdi_print; + trees[i+1].leaf_size = nfkdi_size; + trees[i+1].leaf_index = nfkdi_index; + trees[i+1].leaf_emit = nfkdi_emit; + } + + /* Finish init. */ + for (i = 0; i != trees_count; i++) + trees[i].childnode = NODE; +} + +static void +trees_populate(void) +{ + struct unicode_data *data; + unsigned int unichar; + char keyval[4]; + int keylen; + int i; + + for (i = 0; i != trees_count; i++) { + if (verbose > 0) { + printf("Populating %s_%x\n", + trees[i].type, trees[i].maxage); + } + for (unichar = 0; unichar != 0x110000; unichar++) { + if (unicode_data[unichar].gen < 0) + continue; + keylen = utf8key(unichar, keyval); + data = corrections_lookup(&unicode_data[unichar]); + if (data->correction <= trees[i].maxage) + data = &unicode_data[unichar]; + insert(&trees[i], keyval, keylen, data); + } + } +} + +static void +trees_reduce(void) +{ + int i; + int size; + int changed; + + for (i = 0; i != trees_count; i++) + prune(&trees[i]); + for (i = 0; i != trees_count; i++) + mark_nodes(&trees[i]); + do { + size = 0; + for (i = 0; i != trees_count; i++) + size = index_nodes(&trees[i], size); + changed = 0; + for (i = 0; i != trees_count; i++) + changed += size_nodes(&trees[i]); + } while (changed); + + utf8data = calloc(size, 1); + utf8data_size = size; + for (i = 0; i != trees_count; i++) + emit(&trees[i], utf8data); + + if (verbose > 0) { + for (i = 0; i != trees_count; i++) { + printf("%s_%x idx %d\n", + trees[i].type, trees[i].maxage, trees[i].index); + } + } + + nfkdi = utf8data + trees[trees_count-1].index; + nfkdicf = utf8data + trees[trees_count-2].index; + + nfkdi_tree = &trees[trees_count-1]; + nfkdicf_tree = &trees[trees_count-2]; +} + +static void +verify(struct tree *tree) +{ + struct unicode_data *data; + utf8leaf_t *leaf; + unsigned int unichar; + char key[4]; + int report; + int nocf; + + if (verbose > 0) + printf("Verifying %s_%x\n", tree->type, tree->maxage); + nocf = strcmp(tree->type, "nfkdicf"); + + for (unichar = 0; unichar != 0x110000; unichar++) { + report = 0; + data = corrections_lookup(&unicode_data[unichar]); + if (data->correction <= tree->maxage) + data = &unicode_data[unichar]; + utf8key(unichar, key); + leaf = utf8lookup(tree, key); + if (!leaf) { + if (data->gen != -1) + report++; + if (unichar < 0xd800 || unichar > 0xdfff) + report++; + } else { + if (unichar >= 0xd800 && unichar <= 0xdfff) + report++; + if (data->gen == -1) + report++; + if (data->gen != LEAF_GEN(leaf)) + report++; + if (LEAF_CCC(leaf) == DECOMPOSE) { + if (nocf) { + if (!data->utf8nfkdi) { + report++; + } else if (strcmp(data->utf8nfkdi, + LEAF_STR(leaf))) { + report++; + } + } else { + if (!data->utf8nfkdicf && + !data->utf8nfkdi) { + report++; + } else if (data->utf8nfkdicf) { + if (strcmp(data->utf8nfkdicf, + LEAF_STR(leaf))) + report++; + } else if (strcmp(data->utf8nfkdi, + LEAF_STR(leaf))) { + report++; + } + } + } else if (data->ccc != LEAF_CCC(leaf)) { + report++; + } + } + if (report) { + printf("%X code %X gen %d ccc %d" + " nfdki -> \"%s\"", + unichar, data->code, data->gen, + data->ccc, + data->utf8nfkdi); + if (leaf) { + printf(" age %d ccc %d" + " nfdki -> \"%s\"\n", + LEAF_GEN(leaf), + LEAF_CCC(leaf), + LEAF_CCC(leaf) == DECOMPOSE ? + LEAF_STR(leaf) : ""); + } + printf("\n"); + } + } +} + +static void +trees_verify(void) +{ + int i; + + for (i = 0; i != trees_count; i++) + verify(&trees[i]); +} + +/* ------------------------------------------------------------------ */ + +static void +help(void) +{ + printf("Usage: %s [options]\n", argv0); + printf("\n"); + printf("This program creates an a data trie used for parsing and\n"); + printf("normalization of UTF-8 strings. The trie is derived from\n"); + printf("a set of input files from the Unicode character database\n"); + printf("found at: http://www.unicode.org/Public/UCD/latest/ucd/\n"); + printf("\n"); + printf("The generated tree supports two normalization forms:\n"); + printf("\n"); + printf("\tnfkdi:\n"); + printf("\t- Apply unicode normalization form NFKD.\n"); + printf("\t- Remove any Default_Ignorable_Code_Point.\n"); + printf("\n"); + printf("\tnfkdicf:\n"); + printf("\t- Apply unicode normalization form NFKD.\n"); + printf("\t- Remove any Default_Ignorable_Code_Point.\n"); + printf("\t- Apply a full casefold (C + F).\n"); + printf("\n"); + printf("These forms were chosen as being most useful when dealing\n"); + printf("with file names: NFKD catches most cases where characters\n"); + printf("should be considered equivalent. The ignorables are mostly\n"); + printf("invisible, making names hard to type.\n"); + printf("\n"); + printf("The options to specify the files to be used are listed\n"); + printf("below with their default values, which are the names used\n"); + printf("by version 7.0.0 of the Unicode Character Database.\n"); + printf("\n"); + printf("The input files:\n"); + printf("\t-a %s\n", AGE_NAME); + printf("\t-c %s\n", CCC_NAME); + printf("\t-p %s\n", PROP_NAME); + printf("\t-d %s\n", DATA_NAME); + printf("\t-f %s\n", FOLD_NAME); + printf("\t-n %s\n", NORM_NAME); + printf("\n"); + printf("Additionally, the generated tables are tested using:\n"); + printf("\t-t %s\n", TEST_NAME); + printf("\n"); + printf("Finally, the output file:\n"); + printf("\t-o %s\n", UTF8_NAME); + printf("\n"); +} + +static void +usage(void) +{ + help(); + exit(1); +} + +static void +open_fail(const char *name, int error) +{ + printf("Error %d opening %s: %s\n", error, name, strerror(error)); + exit(1); +} + +static void +file_fail(const char *filename) +{ + printf("Error parsing %s\n", filename); + exit(1); +} + +static void +line_fail(const char *filename, const char *line) +{ + printf("Error parsing %s:%s\n", filename, line); + exit(1); +} + +/* ------------------------------------------------------------------ */ + +static void +print_utf32(unsigned int *utf32str) +{ + int i; + + for (i = 0; utf32str[i]; i++) + printf(" %X", utf32str[i]); +} + +static void +print_utf32nfkdi(unsigned int unichar) +{ + printf(" %X ->", unichar); + print_utf32(unicode_data[unichar].utf32nfkdi); + printf("\n"); +} + +static void +print_utf32nfkdicf(unsigned int unichar) +{ + printf(" %X ->", unichar); + print_utf32(unicode_data[unichar].utf32nfkdicf); + printf("\n"); +} + +/* ------------------------------------------------------------------ */ + +static void +age_init(void) +{ + FILE *file; + unsigned int first; + unsigned int last; + unsigned int unichar; + unsigned int major; + unsigned int minor; + unsigned int revision; + int gen; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", age_name); + + file = fopen(age_name, "r"); + if (!file) + open_fail(age_name, errno); + count = 0; + + gen = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "# Age=V%d_%d_%d", + &major, &minor, &revision); + if (ret == 3) { + ages_count++; + if (verbose > 1) + printf(" Age V%d_%d_%d\n", + major, minor, revision); + if (!age_valid(major, minor, revision)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "# Age=V%d_%d", &major, &minor); + if (ret == 2) { + ages_count++; + if (verbose > 1) + printf(" Age V%d_%d\n", major, minor); + if (!age_valid(major, minor, 0)) + line_fail(age_name, line); + continue; + } + } + + /* We must have found something above. */ + if (verbose > 1) + printf("%d age entries\n", ages_count); + if (ages_count == 0 || ages_count > MAXGEN) + file_fail(age_name); + + /* There is a 0 entry. */ + ages_count++; + ages = calloc(ages_count + 1, sizeof(*ages)); + /* And a guard entry. */ + ages[ages_count] = (unsigned int)-1; + + rewind(file); + count = 0; + gen = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "# Age=V%d_%d_%d", + &major, &minor, &revision); + if (ret == 3) { + ages[++gen] = + UNICODE_AGE(major, minor, revision); + if (verbose > 1) + printf(" Age V%d_%d_%d = gen %d\n", + major, minor, revision, gen); + if (!age_valid(major, minor, revision)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "# Age=V%d_%d", &major, &minor); + if (ret == 2) { + ages[++gen] = UNICODE_AGE(major, minor, 0); + if (verbose > 1) + printf(" Age V%d_%d = %d\n", + major, minor, gen); + if (!age_valid(major, minor, 0)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "%X..%X ; %d.%d #", + &first, &last, &major, &minor); + if (ret == 4) { + for (unichar = first; unichar <= last; unichar++) + unicode_data[unichar].gen = gen; + count += 1 + last - first; + if (verbose > 1) + printf(" %X..%X gen %d\n", first, last, gen); + if (!utf32valid(first) || !utf32valid(last)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "%X ; %d.%d #", &unichar, &major, &minor); + if (ret == 3) { + unicode_data[unichar].gen = gen; + count++; + if (verbose > 1) + printf(" %X gen %d\n", unichar, gen); + if (!utf32valid(unichar)) + line_fail(age_name, line); + continue; + } + } + unicode_maxage = ages[gen]; + fclose(file); + + /* Nix surrogate block */ + if (verbose > 1) + printf(" Removing surrogate block D800..DFFF\n"); + for (unichar = 0xd800; unichar <= 0xdfff; unichar++) + unicode_data[unichar].gen = -1; + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(age_name); +} + +static void +ccc_init(void) +{ + FILE *file; + unsigned int first; + unsigned int last; + unsigned int unichar; + unsigned int value; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", ccc_name); + + file = fopen(ccc_name, "r"); + if (!file) + open_fail(ccc_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X..%X ; %d #", &first, &last, &value); + if (ret == 3) { + for (unichar = first; unichar <= last; unichar++) { + unicode_data[unichar].ccc = value; + count++; + } + if (verbose > 1) + printf(" %X..%X ccc %d\n", first, last, value); + if (!utf32valid(first) || !utf32valid(last)) + line_fail(ccc_name, line); + continue; + } + ret = sscanf(line, "%X ; %d #", &unichar, &value); + if (ret == 2) { + unicode_data[unichar].ccc = value; + count++; + if (verbose > 1) + printf(" %X ccc %d\n", unichar, value); + if (!utf32valid(unichar)) + line_fail(ccc_name, line); + continue; + } + } + fclose(file); + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(ccc_name); +} + +static void +nfkdi_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + char *s; + unsigned int *um; + int count; + int i; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", data_name); + file = fopen(data_name, "r"); + if (!file) + open_fail(data_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X;%*[^;];%*[^;];%*[^;];%*[^;];%[^;];", + &unichar, buf0); + if (ret != 2) + continue; + if (!utf32valid(unichar)) + line_fail(data_name, line); + + s = buf0; + /* skip over */ + if (*s == '<') + while (*s++ != ' ') + ; + /* decode the decomposition into UTF-32 */ + i = 0; + while (*s) { + mapping[i] = strtoul(s, &s, 16); + if (!utf32valid(mapping[i])) + line_fail(data_name, line); + i++; + } + mapping[i++] = 0; + + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdi = um; + + if (verbose > 1) + print_utf32nfkdi(unichar); + count++; + } + fclose(file); + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(data_name); +} + +static void +nfkdicf_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + char status; + char *s; + unsigned int *um; + int i; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", fold_name); + file = fopen(fold_name, "r"); + if (!file) + open_fail(fold_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X; %c; %[^;];", &unichar, &status, buf0); + if (ret != 3) + continue; + if (!utf32valid(unichar)) + line_fail(fold_name, line); + /* Use the C+F casefold. */ + if (status != 'C' && status != 'F') + continue; + s = buf0; + if (*s == '<') + while (*s++ != ' ') + ; + i = 0; + while (*s) { + mapping[i] = strtoul(s, &s, 16); + if (!utf32valid(mapping[i])) + line_fail(fold_name, line); + i++; + } + mapping[i++] = 0; + + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + + if (verbose > 1) + print_utf32nfkdicf(unichar); + count++; + } + fclose(file); + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(fold_name); +} + +static void +ignore_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int first; + unsigned int last; + unsigned int *um; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", prop_name); + file = fopen(prop_name, "r"); + if (!file) + open_fail(prop_name, errno); + assert(file); + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X..%X ; %s # ", &first, &last, buf0); + if (ret == 3) { + if (strcmp(buf0, "Default_Ignorable_Code_Point")) + continue; + if (!utf32valid(first) || !utf32valid(last)) + line_fail(prop_name, line); + for (unichar = first; unichar <= last; unichar++) { + free(unicode_data[unichar].utf32nfkdi); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdi = um; + free(unicode_data[unichar].utf32nfkdicf); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdicf = um; + count++; + } + if (verbose > 1) + printf(" %X..%X Default_Ignorable_Code_Point\n", + first, last); + continue; + } + ret = sscanf(line, "%X ; %s # ", &unichar, buf0); + if (ret == 2) { + if (strcmp(buf0, "Default_Ignorable_Code_Point")) + continue; + if (!utf32valid(unichar)) + line_fail(prop_name, line); + free(unicode_data[unichar].utf32nfkdi); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdi = um; + free(unicode_data[unichar].utf32nfkdicf); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdicf = um; + if (verbose > 1) + printf(" %X Default_Ignorable_Code_Point\n", + unichar); + count++; + continue; + } + } + fclose(file); + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(prop_name); +} + +static void +corrections_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int major; + unsigned int minor; + unsigned int revision; + unsigned int age; + unsigned int *um; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + char *s; + int i; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", norm_name); + file = fopen(norm_name, "r"); + if (!file) + open_fail(norm_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X;%[^;];%[^;];%d.%d.%d #", + &unichar, buf0, buf1, + &major, &minor, &revision); + if (ret != 6) + continue; + if (!utf32valid(unichar) || !age_valid(major, minor, revision)) + line_fail(norm_name, line); + count++; + } + corrections = calloc(count, sizeof(struct unicode_data)); + corrections_count = count; + rewind(file); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X;%[^;];%[^;];%d.%d.%d #", + &unichar, buf0, buf1, + &major, &minor, &revision); + if (ret != 6) + continue; + if (!utf32valid(unichar) || !age_valid(major, minor, revision)) + line_fail(norm_name, line); + corrections[count] = unicode_data[unichar]; + assert(corrections[count].code == unichar); + age = UNICODE_AGE(major, minor, revision); + corrections[count].correction = age; + + i = 0; + s = buf0; + while (*s) { + mapping[i] = strtoul(s, &s, 16); + if (!utf32valid(mapping[i])) + line_fail(norm_name, line); + i++; + } + mapping[i++] = 0; + + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + corrections[count].utf32nfkdi = um; + + if (verbose > 1) + printf(" %X -> %s -> %s V%d_%d_%d\n", + unichar, buf0, buf1, major, minor, revision); + count++; + } + fclose(file); + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(norm_name); +} + +/* ------------------------------------------------------------------ */ + +/* + * Hangul decomposition (algorithm from Section 3.12 of Unicode 6.3.0) + * + * AC00;;Lo;0;L;;;;;N;;;;; + * D7A3;;Lo;0;L;;;;;N;;;;; + * + * SBase = 0xAC00 + * LBase = 0x1100 + * VBase = 0x1161 + * TBase = 0x11A7 + * LCount = 19 + * VCount = 21 + * TCount = 28 + * NCount = 588 (VCount * TCount) + * SCount = 11172 (LCount * NCount) + * + * Decomposition: + * SIndex = s - SBase + * + * LV (Canonical/Full) + * LIndex = SIndex / NCount + * VIndex = (Sindex % NCount) / TCount + * LPart = LBase + LIndex + * VPart = VBase + VIndex + * + * LVT (Canonical) + * LVIndex = (SIndex / TCount) * TCount + * TIndex = (Sindex % TCount + * LVPart = LBase + LVIndex + * TPart = TBase + TIndex + * + * LVT (Full) + * LIndex = SIndex / NCount + * VIndex = (Sindex % NCount) / TCount + * TIndex = (Sindex % TCount + * LPart = LBase + LIndex + * VPart = VBase + VIndex + * if (TIndex == 0) { + * d = + * } else { + * TPart = TBase + TIndex + * d = + * } + * + */ + +static void +hangul_decompose(void) +{ + unsigned int sb = 0xAC00; + unsigned int lb = 0x1100; + unsigned int vb = 0x1161; + unsigned int tb = 0x11a7; + /* unsigned int lc = 19; */ + unsigned int vc = 21; + unsigned int tc = 28; + unsigned int nc = (vc * tc); + /* unsigned int sc = (lc * nc); */ + unsigned int unichar; + unsigned int mapping[4]; + unsigned int *um; + int count; + int i; + + if (verbose > 0) + printf("Decomposing hangul\n"); + /* Hangul */ + count = 0; + for (unichar = 0xAC00; unichar <= 0xD7A3; unichar++) { + unsigned int si = unichar - sb; + unsigned int li = si / nc; + unsigned int vi = (si % nc) / tc; + unsigned int ti = si % tc; + + i = 0; + mapping[i++] = lb + li; + mapping[i++] = vb + vi; + if (ti) + mapping[i++] = tb + ti; + mapping[i++] = 0; + + assert(!unicode_data[unichar].utf32nfkdi); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdi = um; + + assert(!unicode_data[unichar].utf32nfkdicf); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + + if (verbose > 1) + print_utf32nfkdi(unichar); + + count++; + } + if (verbose > 0) + printf("Created %d entries\n", count); +} + +static void +nfkdi_decompose(void) +{ + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + unsigned int *um; + unsigned int *dc; + int count; + int i; + int j; + int ret; + + if (verbose > 0) + printf("Decomposing nfkdi\n"); + + count = 0; + for (unichar = 0; unichar != 0x110000; unichar++) { + if (!unicode_data[unichar].utf32nfkdi) + continue; + for (;;) { + ret = 1; + i = 0; + um = unicode_data[unichar].utf32nfkdi; + while (*um) { + dc = unicode_data[*um].utf32nfkdi; + if (dc) { + for (j = 0; dc[j]; j++) + mapping[i++] = dc[j]; + ret = 0; + } else { + mapping[i++] = *um; + } + um++; + } + mapping[i++] = 0; + if (ret) + break; + free(unicode_data[unichar].utf32nfkdi); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdi = um; + } + /* Add this decomposition to nfkdicf if there is no entry. */ + if (!unicode_data[unichar].utf32nfkdicf) { + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + } + if (verbose > 1) + print_utf32nfkdi(unichar); + count++; + } + if (verbose > 0) + printf("Processed %d entries\n", count); +} + +static void +nfkdicf_decompose(void) +{ + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + unsigned int *um; + unsigned int *dc; + int count; + int i; + int j; + int ret; + + if (verbose > 0) + printf("Decomposing nfkdicf\n"); + count = 0; + for (unichar = 0; unichar != 0x110000; unichar++) { + if (!unicode_data[unichar].utf32nfkdicf) + continue; + for (;;) { + ret = 1; + i = 0; + um = unicode_data[unichar].utf32nfkdicf; + while (*um) { + dc = unicode_data[*um].utf32nfkdicf; + if (dc) { + for (j = 0; dc[j]; j++) + mapping[i++] = dc[j]; + ret = 0; + } else { + mapping[i++] = *um; + } + um++; + } + mapping[i++] = 0; + if (ret) + break; + free(unicode_data[unichar].utf32nfkdicf); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + } + if (verbose > 1) + print_utf32nfkdicf(unichar); + count++; + } + if (verbose > 0) + printf("Processed %d entries\n", count); +} + +/* ------------------------------------------------------------------ */ + +int utf8agemax(struct tree *, const char *); +int utf8nagemax(struct tree *, const char *, size_t); +int utf8agemin(struct tree *, const char *); +int utf8nagemin(struct tree *, const char *, size_t); +ssize_t utf8len(struct tree *, const char *); +ssize_t utf8nlen(struct tree *, const char *, size_t); +struct utf8cursor; +int utf8cursor(struct utf8cursor *, struct tree *, const char *); +int utf8ncursor(struct utf8cursor *, struct tree *, const char *, size_t); +int utf8byte(struct utf8cursor *); + +/* + * Use trie to scan s, touching at most len bytes. + * Returns the leaf if one exists, NULL otherwise. + * + * A non-NULL return guarantees that the UTF-8 sequence starting at s + * is well-formed and corresponds to a known unicode code point. The + * shorthand for this will be "is valid UTF-8 unicode". + */ +static utf8leaf_t * +utf8nlookup(struct tree *tree, const char *s, size_t len) +{ + utf8trie_t *trie = utf8data + tree->index; + int offlen; + int offset; + int mask; + int node; + + if (!tree) + return NULL; + if (len == 0) + return NULL; + node = 1; + while (node) { + offlen = (*trie & OFFLEN) >> OFFLEN_SHIFT; + if (*trie & NEXTBYTE) { + if (--len == 0) + return NULL; + s++; + } + mask = 1 << (*trie & BITNUM); + if (*s & mask) { + /* Right leg */ + if (offlen) { + /* Right node at offset of trie */ + node = (*trie & RIGHTNODE); + offset = trie[offlen]; + while (--offlen) { + offset <<= 8; + offset |= trie[offlen]; + } + trie += offset; + } else if (*trie & RIGHTPATH) { + /* Right node after this node */ + node = (*trie & TRIENODE); + trie++; + } else { + /* No right node. */ + node = 0; + trie = NULL; + } + } else { + /* Left leg */ + if (offlen) { + /* Left node after this node. */ + node = (*trie & LEFTNODE); + trie += offlen + 1; + } else if (*trie & RIGHTPATH) { + /* No left node. */ + node = 0; + trie = NULL; + } else { + /* Left node after this node */ + node = (*trie & TRIENODE); + trie++; + } + } + } + return trie; +} + +/* + * Use trie to scan s. + * Returns the leaf if one exists, NULL otherwise. + * + * Forwards to trie_nlookup(). + */ +static utf8leaf_t * +utf8lookup(struct tree *tree, const char *s) +{ + return utf8nlookup(tree, s, (size_t)-1); +} + +/* + * Return the number of bytes used by the current UTF-8 sequence. + * Assumes the input points to the first byte of a valid UTF-8 + * sequence. + */ +static inline int +utf8clen(const char *s) +{ + unsigned char c = *s; + return 1 + (c >= 0xC0) + (c >= 0xE0) + (c >= 0xF0); +} + +/* + * Maximum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if only non-assigned code points are used. + */ +int +utf8agemax(struct tree *tree, const char *s) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!tree) + return -1; + while (*s) { + if (!(leaf = utf8lookup(tree, s))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age > age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} + +/* + * Minimum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if non-assigned code points are used. + */ +int +utf8agemin(struct tree *tree, const char *s) +{ + utf8leaf_t *leaf; + int age = tree->maxage; + int leaf_age; + + if (!tree) + return -1; + while (*s) { + if (!(leaf = utf8lookup(tree, s))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age < age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemax(struct tree *tree, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!tree) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(tree, s, len))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age > age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemin(struct tree *tree, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int leaf_age; + int age = tree->maxage; + + if (!tree) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(tree, s, len))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age < age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} + +/* + * Length of the normalization of s. + * Return -1 if s is not valid UTF-8 unicode. + * + * A string of Default_Ignorable_Code_Point has length 0. + */ +ssize_t +utf8len(struct tree *tree, const char *s) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!tree) + return -1; + while (*s) { + if (!(leaf = utf8lookup(tree, s))) + return -1; + if (ages[LEAF_GEN(leaf)] > tree->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + s += utf8clen(s); + } + return ret; +} + +/* + * Length of the normalization of s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +ssize_t +utf8nlen(struct tree *tree, const char *s, size_t len) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!tree) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(tree, s, len))) + return -1; + if (ages[LEAF_GEN(leaf)] > tree->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + len -= utf8clen(s); + s += utf8clen(s); + } + return ret; +} + +/* + * Cursor structure used by the normalizer. + */ +struct utf8cursor { + struct tree *tree; + const char *s; + const char *p; + const char *ss; + const char *sp; + unsigned int len; + unsigned int slen; + short int ccc; + short int nccc; + unsigned int unichar; +}; + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * s : string. + * len : length of s. + * u8c : pointer to cursor. + * trie : utf8trie_t to use for normalization. + * + * Returns -1 on error, 0 on success. + */ +int +utf8ncursor( + struct utf8cursor *u8c, + struct tree *tree, + const char *s, + size_t len) +{ + if (!tree) + return -1; + if (!s) + return -1; + u8c->tree = tree; + u8c->s = s; + u8c->p = NULL; + u8c->ss = NULL; + u8c->sp = NULL; + u8c->len = len; + u8c->slen = 0; + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + u8c->unichar = 0; + /* Check we didn't clobber the maximum length. */ + if (u8c->len != len) + return -1; + /* The first byte of s may not be an utf8 continuation. */ + if (len > 0 && (*s & 0xC0) == 0x80) + return -1; + return 0; +} + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * s : NUL-terminated string. + * u8c : pointer to cursor. + * trie : utf8trie_t to use for normalization. + * + * Returns -1 on error, 0 on success. + */ +int +utf8cursor( + struct utf8cursor *u8c, + struct tree *tree, + const char *s) +{ + return utf8ncursor(u8c, tree, s, (unsigned int)-1); +} + +/* + * Get one byte from the normalized form of the string described by u8c. + * + * Returns the byte cast to an unsigned char on succes, and -1 on failure. + * + * The cursor keeps track of the location in the string in u8c->s. + * When a character is decomposed, the current location is stored in + * u8c->p, and u8c->s is set to the start of the decomposition. Note + * that bytes from a decomposition do not count against u8c->len. + * + * Characters are emitted if they match the current CCC in u8c->ccc. + * Hitting end-of-string while u8c->ccc == STOPPER means we're done, + * and the function returns 0 in that case. + * + * Sorting by CCC is done by repeatedly scanning the string. The + * values of u8c->s and u8c->p are stored in u8c->ss and u8c->sp at + * the start of the scan. The first pass finds the lowest CCC to be + * emitted and stores it in u8c->nccc, the second pass emits the + * characters with this CCC and finds the next lowest CCC. This limits + * the number of passes to 1 + the number of different CCCs in the + * sequence being scanned. + * + * Therefore: + * u8c->p != NULL -> a decomposition is being scanned. + * u8c->ss != NULL -> this is a repeating scan. + * u8c->ccc == -1 -> this is the first scan of a repeating scan. + */ +int +utf8byte(struct utf8cursor *u8c) +{ + utf8leaf_t *leaf; + int ccc; + + for (;;) { + /* Check for the end of a decomposed character. */ + if (u8c->p && *u8c->s == '\0') { + u8c->s = u8c->p; + u8c->p = NULL; + } + + /* Check for end-of-string. */ + if (!u8c->p && (u8c->len == 0 || *u8c->s == '\0')) { + /* There is no next byte. */ + if (u8c->ccc == STOPPER) + return 0; + /* End-of-string during a scan counts as a stopper. */ + ccc = STOPPER; + goto ccc_mismatch; + } else if ((*u8c->s & 0xC0) == 0x80) { + /* This is a continuation of the current character. */ + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Look up the data for the current character. */ + if (u8c->p) + leaf = utf8lookup(u8c->tree, u8c->s); + else + leaf = utf8nlookup(u8c->tree, u8c->s, u8c->len); + + /* No leaf found implies that the input is a binary blob. */ + if (!leaf) + return -1; + + /* Characters that are too new have CCC 0. */ + if (ages[LEAF_GEN(leaf)] > u8c->tree->maxage) { + ccc = STOPPER; + } else if ((ccc = LEAF_CCC(leaf)) == DECOMPOSE) { + u8c->len -= utf8clen(u8c->s); + u8c->p = u8c->s + utf8clen(u8c->s); + u8c->s = LEAF_STR(leaf); + /* Empty decomposition implies CCC 0. */ + if (*u8c->s == '\0') { + if (u8c->ccc == STOPPER) + continue; + ccc = STOPPER; + goto ccc_mismatch; + } + leaf = utf8lookup(u8c->tree, u8c->s); + ccc = LEAF_CCC(leaf); + } + u8c->unichar = utf8code(u8c->s); + + /* + * If this is not a stopper, then see if it updates + * the next canonical class to be emitted. + */ + if (ccc != STOPPER && u8c->ccc < ccc && ccc < u8c->nccc) + u8c->nccc = ccc; + + /* + * Return the current byte if this is the current + * combining class. + */ + if (ccc == u8c->ccc) { + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Current combining class mismatch. */ + ccc_mismatch: + if (u8c->nccc == STOPPER) { + /* + * Scan forward for the first canonical class + * to be emitted. Save the position from + * which to restart. + */ + assert(u8c->ccc == STOPPER); + u8c->ccc = MINCCC - 1; + u8c->nccc = ccc; + u8c->sp = u8c->p; + u8c->ss = u8c->s; + u8c->slen = u8c->len; + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (ccc != STOPPER) { + /* Not a stopper, and not the ccc we're emitting. */ + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (u8c->nccc != MAXCCC + 1) { + /* At a stopper, restart for next ccc. */ + u8c->ccc = u8c->nccc; + u8c->nccc = MAXCCC + 1; + u8c->s = u8c->ss; + u8c->p = u8c->sp; + u8c->len = u8c->slen; + } else { + /* All done, proceed from here. */ + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + u8c->sp = NULL; + u8c->ss = NULL; + u8c->slen = 0; + } + } +} + +/* ------------------------------------------------------------------ */ + +static int +normalize_line(struct tree *tree) +{ + char *s; + char *t; + int c; + struct utf8cursor u8c; + + /* First test: null-terminated string. */ + s = buf2; + t = buf3; + if (utf8cursor(&u8c, tree, s)) + return -1; + while ((c = utf8byte(&u8c)) > 0) + if (c != (unsigned char)*t++) + return -1; + if (c < 0) + return -1; + if (*t != 0) + return -1; + + /* Second test: length-limited string. */ + s = buf2; + /* Replace NUL with a value that will cause an error if seen. */ + s[strlen(s) + 1] = -1; + t = buf3; + if (utf8cursor(&u8c, tree, s)) + return -1; + while ((c = utf8byte(&u8c)) > 0) + if (c != (unsigned char)*t++) + return -1; + if (c < 0) + return -1; + if (*t != 0) + return -1; + + return 0; +} + +static void +normalization_test(void) +{ + FILE *file; + unsigned int unichar; + struct unicode_data *data; + char *s; + char *t; + int ret; + int ignorables; + int tests = 0; + int failures = 0; + + if (verbose > 0) + printf("Parsing %s\n", test_name); + /* Step one, read data from file. */ + file = fopen(test_name, "r"); + if (!file) + open_fail(test_name, errno); + + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%[^;];%*[^;];%*[^;];%*[^;];%[^;];", + buf0, buf1); + if (ret != 2 || *line == '#') + continue; + s = buf0; + t = buf2; + while (*s) { + unichar = strtoul(s, &s, 16); + t += utf8key(unichar, t); + } + *t = '\0'; + + ignorables = 0; + s = buf1; + t = buf3; + while (*s) { + unichar = strtoul(s, &s, 16); + data = &unicode_data[unichar]; + if (data->utf8nfkdi && !*data->utf8nfkdi) + ignorables = 1; + else + t += utf8key(unichar, t); + } + *t = '\0'; + + tests++; + if (normalize_line(nfkdi_tree) < 0) { + printf("\nline %s -> %s", buf0, buf1); + if (ignorables) + printf(" (ignorables removed)"); + printf(" failure\n"); + failures++; + } + } + fclose(file); + if (verbose > 0) + printf("Ran %d tests with %d failures\n", tests, failures); + if (failures) + file_fail(test_name); +} + +/* ------------------------------------------------------------------ */ + +static void +write_file(void) +{ + FILE *file; + int i; + int j; + int t; + int gen; + + if (verbose > 0) + printf("Writing %s\n", utf8_name); + file = fopen(utf8_name, "w"); + if (!file) + open_fail(utf8_name, errno); + + fprintf(file, "/* This file is generated code, do not edit. */\n"); + fprintf(file, "#ifndef __INCLUDED_FROM_UTF8NORM_C__\n"); + fprintf(file, "#error Only xfs_utf8.c may include this file.\n"); + fprintf(file, "#endif\n"); + fprintf(file, "\n"); + fprintf(file, "const unsigned int utf8version = %#x;\n", + unicode_maxage); + fprintf(file, "\n"); + fprintf(file, "static const unsigned int utf8agetab[] = {\n"); + for (i = 0; i != ages_count; i++) + fprintf(file, "\t%#x%s\n", ages[i], + ages[i] == unicode_maxage ? "" : ","); + fprintf(file, "};\n"); + fprintf(file, "\n"); + fprintf(file, "static const struct utf8data utf8nfkdicfdata[] = {\n"); + t = 0; + for (gen = 0; gen < ages_count; gen++) { + fprintf(file, "\t{ %#x, %d }%s\n", + ages[gen], trees[t].index, + ages[gen] == unicode_maxage ? "" : ","); + if (trees[t].maxage == ages[gen]) + t += 2; + } + fprintf(file, "};\n"); + fprintf(file, "\n"); + fprintf(file, "static const struct utf8data utf8nfkdidata[] = {\n"); + t = 1; + for (gen = 0; gen < ages_count; gen++) { + fprintf(file, "\t{ %#x, %d }%s\n", + ages[gen], trees[t].index, + ages[gen] == unicode_maxage ? "" : ","); + if (trees[t].maxage == ages[gen]) + t += 2; + } + fprintf(file, "};\n"); + fprintf(file, "\n"); + fprintf(file, "static const unsigned char utf8data[%zd] = {\n", + utf8data_size); + t = 0; + for (i = 0; i != utf8data_size; i += 16) { + if (i == trees[t].index) { + fprintf(file, "\t/* %s_%x */\n", + trees[t].type, trees[t].maxage); + if (t < trees_count-1) + t++; + } + fprintf(file, "\t"); + for (j = i; j != i + 16; j++) + fprintf(file, "0x%.2x%s", utf8data[j], + (j < utf8data_size -1 ? "," : "")); + fprintf(file, "\n"); + } + fprintf(file, "};\n"); + fclose(file); +} + +/* ------------------------------------------------------------------ */ + +int +main(int argc, char *argv[]) +{ + unsigned int unichar; + int opt; + + argv0 = argv[0]; + + while ((opt = getopt(argc, argv, "a:c:d:f:hn:o:p:t:v")) != -1) { + switch (opt) { + case 'a': + age_name = optarg; + break; + case 'c': + ccc_name = optarg; + break; + case 'd': + data_name = optarg; + break; + case 'f': + fold_name = optarg; + break; + case 'n': + norm_name = optarg; + break; + case 'o': + utf8_name = optarg; + break; + case 'p': + prop_name = optarg; + break; + case 't': + test_name = optarg; + break; + case 'v': + verbose++; + break; + case 'h': + help(); + exit(0); + default: + usage(); + } + } + + if (verbose > 1) + help(); + for (unichar = 0; unichar != 0x110000; unichar++) + unicode_data[unichar].code = unichar; + age_init(); + ccc_init(); + nfkdi_init(); + nfkdicf_init(); + ignore_init(); + corrections_init(); + hangul_decompose(); + nfkdi_decompose(); + nfkdicf_decompose(); + utf8_init(); + trees_init(); + trees_populate(); + trees_reduce(); + trees_verify(); + /* Prevent "unused function" warning. */ + (void)lookup(nfkdi_tree, " "); + if (verbose > 2) + tree_walk(nfkdi_tree); + if (verbose > 2) + tree_walk(nfkdicf_tree); + normalization_test(); + write_file(); + + return 0; +} diff --git a/fs/xfs/support/utf8norm.c b/fs/xfs/support/utf8norm.c new file mode 100644 index 0000000..3a8b3ab --- /dev/null +++ b/fs/xfs/support/utf8norm.c @@ -0,0 +1,641 @@ +/* + * Copyright (c) 2014 SGI. + * 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 "xfs.h" +#include "xfs_types.h" +#include "utf8norm.h" + +struct utf8data { + unsigned int maxage; + unsigned int offset; +}; + +#define __INCLUDED_FROM_UTF8NORM_C__ +#include "utf8data.h" +#undef __INCLUDED_FROM_UTF8NORM_C__ + +/* + * UTF-8 valid ranges. + * + * The UTF-8 encoding spreads the bits of a 32bit word over several + * bytes. This table gives the ranges that can be held and how they'd + * be represented. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000000 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000000 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * There is an additional requirement on UTF-8, in that only the + * shortest representation of a 32bit value is to be used. A decoder + * must not decode sequences that do not satisfy this requirement. + * Thus the allowed ranges have a lower bound. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000080 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000800 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00010000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00200000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x04000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * Actual unicode characters are limited to the range 0x0 - 0x10FFFF, + * 17 planes of 65536 values. This limits the sequences actually seen + * even more, to just the following. + * + * 0 - 0x7F: 0 - 0x7F + * 0x80 - 0x7FF: 0xC2 0x80 - 0xDF 0xBF + * 0x800 - 0xFFFF: 0xE0 0xA0 0x80 - 0xEF 0xBF 0xBF + * 0x10000 - 0x10FFFF: 0xF0 0x90 0x80 0x80 - 0xF4 0x8F 0xBF 0xBF + * + * Within those ranges the surrogates 0xD800 - 0xDFFF are not allowed. + * + * Note that the longest sequence seen with valid usage is 4 bytes, + * the same a single UTF-32 character. This makes the UTF-8 + * representation of Unicode strictly smaller than UTF-32. + * + * The shortest sequence requirement was introduced by: + * Corrigendum #1: UTF-8 Shortest Form + * It can be found here: + * http://www.unicode.org/versions/corrigendum1.html + * + */ + +/* + * Return the number of bytes used by the current UTF-8 sequence. + * Assumes the input points to the first byte of a valid UTF-8 + * sequence. + */ +static inline int +utf8clen(const char *s) +{ + unsigned char c = *s; + return 1 + (c >= 0xC0) + (c >= 0xE0) + (c >= 0xF0); +} + +/* + * utf8trie_t + * + * A compact binary tree, used to decode UTF-8 characters. + * + * Internal nodes are one byte for the node itself, and up to three + * bytes for an offset into the tree. The first byte contains the + * following information: + * NEXTBYTE - flag - advance to next byte if set + * BITNUM - 3 bit field - the bit number to tested + * OFFLEN - 2 bit field - number of bytes in the offset + * if offlen == 0 (non-branching node) + * RIGHTPATH - 1 bit field - set if the following node is for the + * right-hand path (tested bit is set) + * TRIENODE - 1 bit field - set if the following node is an internal + * node, otherwise it is a leaf node + * if offlen != 0 (branching node) + * LEFTNODE - 1 bit field - set if the left-hand node is internal + * RIGHTNODE - 1 bit field - set if the right-hand node is internal + * + * Due to the way utf8 works, there cannot be branching nodes with + * NEXTBYTE set, and moreover those nodes always have a righthand + * descendant. + */ +typedef const unsigned char utf8trie_t; +#define BITNUM 0x07 +#define NEXTBYTE 0x08 +#define OFFLEN 0x30 +#define OFFLEN_SHIFT 4 +#define RIGHTPATH 0x40 +#define TRIENODE 0x80 +#define RIGHTNODE 0x40 +#define LEFTNODE 0x80 + +/* + * utf8leaf_t + * + * The leaves of the trie are embedded in the trie, and so the same + * underlying datatype: unsigned char. + * + * leaf[0]: The unicode version, stored as a generation number that is + * an index into utf8agetab[]. With this we can filter code + * points based on the unicode version in which they were + * defined. The CCC of a non-defined code point is 0. + * leaf[1]: Canonical Combining Class. During normalization, we need + * to do a stable sort into ascending order of all characters + * with a non-zero CCC that occur between two characters with + * a CCC of 0, or at the begin or end of a string. + * The unicode standard guarantees that all CCC values are + * between 0 and 254 inclusive, which leaves 255 available as + * a special value. + * Code points with CCC 0 are known as stoppers. + * leaf[2]: Decomposition. If leaf[1] == 255, then leaf[2] is the + * start of a NUL-terminated string that is the decomposition + * of the character. + * The CCC of a decomposable character is the same as the CCC + * of the first character of its decomposition. + * Some characters decompose as the empty string: these are + * characters with the Default_Ignorable_Code_Point property. + * These do affect normalization, as they all have CCC 0. + * + * The decompositions in the trie have been fully expanded. + * + * Casefolding, if applicable, is also done using decompositions. + * + * The trie is constructed in such a way that leaves exist for all + * UTF-8 sequences that match the criteria from the "UTF-8 valid + * ranges" comment above, and only for those sequences. Therefore a + * lookup in the trie can be used to validate the UTF-8 input. + */ +typedef const unsigned char utf8leaf_t; + +#define LEAF_GEN(LEAF) ((LEAF)[0]) +#define LEAF_CCC(LEAF) ((LEAF)[1]) +#define LEAF_STR(LEAF) ((const char*)((LEAF) + 2)) + +#define MINCCC (0) +#define MAXCCC (254) +#define STOPPER (0) +#define DECOMPOSE (255) + +/* + * Use trie to scan s, touching at most len bytes. + * Returns the leaf if one exists, NULL otherwise. + * + * A non-NULL return guarantees that the UTF-8 sequence starting at s + * is well-formed and corresponds to a known unicode code point. The + * shorthand for this will be "is valid UTF-8 unicode". + */ +static utf8leaf_t * +utf8nlookup(utf8data_t data, const char *s, size_t len) +{ + utf8trie_t *trie = utf8data + data->offset; + int offlen; + int offset; + int mask; + int node; + + if (!data) + return NULL; + if (len == 0) + return NULL; + node = 1; + while (node) { + offlen = (*trie & OFFLEN) >> OFFLEN_SHIFT; + if (*trie & NEXTBYTE) { + if (--len == 0) + return NULL; + s++; + } + mask = 1 << (*trie & BITNUM); + if (*s & mask) { + /* Right leg */ + if (offlen) { + /* Right node at offset of trie */ + node = (*trie & RIGHTNODE); + offset = trie[offlen]; + while (--offlen) { + offset <<= 8; + offset |= trie[offlen]; + } + trie += offset; + } else if (*trie & RIGHTPATH) { + /* Right node after this node */ + node = (*trie & TRIENODE); + trie++; + } else { + /* No right node. */ + node = 0; + trie = NULL; + } + } else { + /* Left leg */ + if (offlen) { + /* Left node after this node. */ + node = (*trie & LEFTNODE); + trie += offlen + 1; + } else if (*trie & RIGHTPATH) { + /* No left node. */ + node = 0; + trie = NULL; + } else { + /* Left node after this node */ + node = (*trie & TRIENODE); + trie++; + } + } + } + return trie; +} + +/* + * Use trie to scan s. + * Returns the leaf if one exists, NULL otherwise. + * + * Forwards to utf8nlookup(). + */ +static utf8leaf_t * +utf8lookup(utf8data_t data, const char *s) +{ + return utf8nlookup(data, s, (size_t)-1); +} + +/* + * Maximum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if only non-assigned code points are used. + */ +int +utf8agemax(utf8data_t data, const char *s) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!data) + return -1; + while (*s) { + if (!(leaf = utf8lookup(data, s))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age > age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} +EXPORT_SYMBOL(utf8agemax); + +/* + * Minimum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if non-assigned code points are used. + */ +int +utf8agemin(utf8data_t data, const char *s) +{ + utf8leaf_t *leaf; + int age; + int leaf_age; + + if (!data) + return -1; + age = data->maxage; + while (*s) { + if (!(leaf = utf8lookup(data, s))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age < age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} +EXPORT_SYMBOL(utf8agemin); + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemax(utf8data_t data, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!data) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(data, s, len))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age > age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} +EXPORT_SYMBOL(utf8nagemax); + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemin(utf8data_t data, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int leaf_age; + int age; + + if (!data) + return -1; + age = data->maxage; + while (len && *s) { + if (!(leaf = utf8nlookup(data, s, len))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age < age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} +EXPORT_SYMBOL(utf8nagemin); + +/* + * Length of the normalization of s. + * Return -1 if s is not valid UTF-8 unicode. + * + * A string of Default_Ignorable_Code_Point has length 0. + */ +ssize_t +utf8len(utf8data_t data, const char *s) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!data) + return -1; + while (*s) { + if (!(leaf = utf8lookup(data, s))) + return -1; + if (utf8agetab[LEAF_GEN(leaf)] > data->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + s += utf8clen(s); + } + return ret; +} +EXPORT_SYMBOL(utf8len); + +/* + * Length of the normalization of s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +ssize_t +utf8nlen(utf8data_t data, const char *s, size_t len) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!data) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(data, s, len))) + return -1; + if (utf8agetab[LEAF_GEN(leaf)] > data->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + len -= utf8clen(s); + s += utf8clen(s); + } + return ret; +} +EXPORT_SYMBOL(utf8nlen); + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * u8c : pointer to cursor. + * data : utf8data_t to use for normalization. + * s : string. + * len : length of s. + * + * Returns -1 on error, 0 on success. + */ +int +utf8ncursor( + struct utf8cursor *u8c, + utf8data_t data, + const char *s, + size_t len) +{ + if (!data) + return -1; + if (!s) + return -1; + u8c->data = data; + u8c->s = s; + u8c->p = NULL; + u8c->ss = NULL; + u8c->sp = NULL; + u8c->len = len; + u8c->slen = 0; + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + /* Check we didn't clobber the maximum length. */ + if (u8c->len != len) + return -1; + /* The first byte of s may not be an utf8 continuation. */ + if (len > 0 && (*s & 0xC0) == 0x80) + return -1; + return 0; +} +EXPORT_SYMBOL(utf8ncursor); + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * u8c : pointer to cursor. + * data : utf8data_t to use for normalization. + * s : NUL-terminated string. + * + * Returns -1 on error, 0 on success. + */ +int +utf8cursor( + struct utf8cursor *u8c, + utf8data_t data, + const char *s) +{ + return utf8ncursor(u8c, data, s, (unsigned int)-1); +} +EXPORT_SYMBOL(utf8cursor); + +/* + * Get one byte from the normalized form of the string described by u8c. + * + * Returns the byte cast to an unsigned char on succes, and -1 on failure. + * + * The cursor keeps track of the location in the string in u8c->s. + * When a character is decomposed, the current location is stored in + * u8c->p, and u8c->s is set to the start of the decomposition. Note + * that bytes from a decomposition do not count against u8c->len. + * + * Characters are emitted if they match the current CCC in u8c->ccc. + * Hitting end-of-string while u8c->ccc == STOPPER means we're done, + * and the function returns 0 in that case. + * + * Sorting by CCC is done by repeatedly scanning the string. The + * values of u8c->s and u8c->p are stored in u8c->ss and u8c->sp at + * the start of the scan. The first pass finds the lowest CCC to be + * emitted and stores it in u8c->nccc, the second pass emits the + * characters with this CCC and finds the next lowest CCC. This limits + * the number of passes to 1 + the number of different CCCs in the + * sequence being scanned. + * + * Therefore: + * u8c->p != NULL -> a decomposition is being scanned. + * u8c->ss != NULL -> this is a repeating scan. + * u8c->ccc == -1 -> this is the first scan of a repeating scan. + */ +int +utf8byte(struct utf8cursor *u8c) +{ + utf8leaf_t *leaf; + int ccc; + + for (;;) { + /* Check for the end of a decomposed character. */ + if (u8c->p && *u8c->s == '\0') { + u8c->s = u8c->p; + u8c->p = NULL; + } + + /* Check for end-of-string. */ + if (!u8c->p && (u8c->len == 0 || *u8c->s == '\0')) { + /* There is no next byte. */ + if (u8c->ccc == STOPPER) + return 0; + /* End-of-string during a scan counts as a stopper. */ + ccc = STOPPER; + goto ccc_mismatch; + } else if ((*u8c->s & 0xC0) == 0x80) { + /* This is a continuation of the current character. */ + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Look up the data for the current character. */ + if (u8c->p) + leaf = utf8lookup(u8c->data, u8c->s); + else + leaf = utf8nlookup(u8c->data, u8c->s, u8c->len); + + /* No leaf found implies that the input is a binary blob. */ + if (!leaf) + return -1; + + /* Characters that are too new have CCC 0. */ + if (utf8agetab[LEAF_GEN(leaf)] > u8c->data->maxage) { + ccc = STOPPER; + } else if ((ccc = LEAF_CCC(leaf)) == DECOMPOSE) { + u8c->len -= utf8clen(u8c->s); + u8c->p = u8c->s + utf8clen(u8c->s); + u8c->s = LEAF_STR(leaf); + /* Empty decomposition implies CCC 0. */ + if (*u8c->s == '\0') { + if (u8c->ccc == STOPPER) + continue; + ccc = STOPPER; + goto ccc_mismatch; + } + leaf = utf8lookup(u8c->data, u8c->s); + ccc = LEAF_CCC(leaf); + } + + /* + * If this is not a stopper, then see if it updates + * the next canonical class to be emitted. + */ + if (ccc != STOPPER && u8c->ccc < ccc && ccc < u8c->nccc) + u8c->nccc = ccc; + + /* + * Return the current byte if this is the current + * combining class. + */ + if (ccc == u8c->ccc) { + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Current combining class mismatch. */ + ccc_mismatch: + if (u8c->nccc == STOPPER) { + /* + * Scan forward for the first canonical class + * to be emitted. Save the position from + * which to restart. + */ + u8c->ccc = MINCCC - 1; + u8c->nccc = ccc; + u8c->sp = u8c->p; + u8c->ss = u8c->s; + u8c->slen = u8c->len; + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (ccc != STOPPER) { + /* Not a stopper, and not the ccc we're emitting. */ + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (u8c->nccc != MAXCCC + 1) { + /* At a stopper, restart for next ccc. */ + u8c->ccc = u8c->nccc; + u8c->nccc = MAXCCC + 1; + u8c->s = u8c->ss; + u8c->p = u8c->sp; + u8c->len = u8c->slen; + } else { + /* All done, proceed from here. */ + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + u8c->sp = NULL; + u8c->ss = NULL; + u8c->slen = 0; + } + } +} +EXPORT_SYMBOL(utf8byte); + +const struct utf8data * +utf8nfkdi(unsigned int maxage) +{ + int i = sizeof(utf8nfkdidata)/sizeof(utf8nfkdidata[0]) - 1; + + while (maxage < utf8nfkdidata[i].maxage) + i--; + if (maxage > utf8nfkdidata[i].maxage) + return NULL; + return &utf8nfkdidata[i]; +} +EXPORT_SYMBOL(utf8nfkdi); + +const struct utf8data * +utf8nfkdicf(unsigned int maxage) +{ + int i = sizeof(utf8nfkdicfdata)/sizeof(utf8nfkdicfdata[0]) - 1; + + while (maxage < utf8nfkdicfdata[i].maxage) + i--; + if (maxage > utf8nfkdicfdata[i].maxage) + return NULL; + return &utf8nfkdicfdata[i]; +} +EXPORT_SYMBOL(utf8nfkdicf); diff --git a/fs/xfs/support/utf8norm.h b/fs/xfs/support/utf8norm.h new file mode 100644 index 0000000..6aa3391 --- /dev/null +++ b/fs/xfs/support/utf8norm.h @@ -0,0 +1,111 @@ +/* + * Copyright (c) 2014 SGI. + * 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 UTF8NORM_H +#define UTF8NORM_H + +/* An opaque type used to determine the normalization in use. */ +typedef const struct utf8data *utf8data_t; + +/* Encoding a unicode version number as a single unsigned int. */ +#define UNICODE_MAJ_SHIFT (16) +#define UNICODE_MIN_SHIFT (8) + +#define UNICODE_AGE(MAJ,MIN,REV) \ + (((unsigned int)(MAJ) << UNICODE_MAJ_SHIFT) | \ + ((unsigned int)(MIN) << UNICODE_MIN_SHIFT) | \ + ((unsigned int)(REV))) + +/* Highest unicode version supported by the data tables. */ +extern const unsigned int utf8version; + +/* + * Look for the correct utf8data_t for a unicode version. + * Returns NULL if the version requested is too new. + * + * Two normalization forms are supported: nfkdi and nfkdicf. + * + * nfkdi: + * - Apply unicode normalization form NFKD. + * - Remove any Default_Ignorable_Code_Point. + * + * nfkdicf: + * - Apply unicode normalization form NFKD. + * - Remove any Default_Ignorable_Code_Point. + * - Apply a full casefold (C + F). + */ +extern utf8data_t utf8nfkdi(unsigned int); +extern utf8data_t utf8nfkdicf(unsigned int); + +/* + * Determine the maximum age of any unicode character in the string. + * Returns 0 if only unassigned code points are present. + * Returns -1 if the input is not valid UTF-8. + */ +extern int utf8agemax(utf8data_t, const char *); +extern int utf8nagemax(utf8data_t, const char *, size_t); + +/* + * Determine the minimum age of any unicode character in the string. + * Returns 0 if any unassigned code points are present. + * Returns -1 if the input is not valid UTF-8. + */ +extern int utf8agemin(utf8data_t, const char *); +extern int utf8nagemin(utf8data_t, const char *, size_t); + +/* + * Determine the length of the normalized from of the string, + * excluding any terminating NULL byte. + * Returns 0 if only ignorable code points are present. + * Returns -1 if the input is not valid UTF-8. + */ +extern ssize_t utf8len(utf8data_t, const char *); +extern ssize_t utf8nlen(utf8data_t, const char *, size_t); + +/* + * Cursor structure used by the normalizer. + */ +struct utf8cursor { + utf8data_t data; + const char *s; + const char *p; + const char *ss; + const char *sp; + unsigned int len; + unsigned int slen; + short int ccc; + short int nccc; +}; + +/* + * Initialize a utf8cursor to normalize a string. + * Returns 0 on success. + * Returns -1 on failure. + */ +extern int utf8cursor(struct utf8cursor *, utf8data_t, const char *); +extern int utf8ncursor(struct utf8cursor *, utf8data_t, const char *, size_t); + +/* + * Get the next byte in the normalization. + * Returns a value > 0 && < 256 on success. + * Returns 0 when the end of the normalization is reached. + * Returns -1 if the string being normalized is not valid UTF-8. + */ +extern int utf8byte(struct utf8cursor *); + +#endif /* UTF8NORM_H */ -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 15:49:27 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B2C197F85 for ; Thu, 11 Sep 2014 15:49:27 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id 2DE8FAC00D; Thu, 11 Sep 2014 13:49:27 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id CA6CC4266DC; Thu, 11 Sep 2014 15:49:26 -0500 (CDT) Date: Thu, 11 Sep 2014 15:49:26 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 8/9] xfs: add xfs_nameops for utf8 and utf8+casefold. Message-ID: <20140911204926.GH13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber The xfs_utf8_nameops use the nfkdi normalization when comparing filenames, and are installed if the utf8bit is set in the super block. The xfs_utf8_ci_nameops use the nfkdicf normalization when comparing filenames, and are installed if both the utf8bit and the borgbit are set in the superblock. Normalized filenames are not stored on disk. Normalization will fail if a filename is not valid UTF-8, in which case the filename is treated as an opaque blob. Signed-off-by: Olaf Weber --- fs/xfs/Makefile | 1 + fs/xfs/libxfs/xfs_dir2.c | 16 +++- fs/xfs/xfs_iops.c | 2 +- fs/xfs/xfs_utf8.c | 242 +++++++++++++++++++++++++++++++++++++++++++++++ fs/xfs/xfs_utf8.h | 25 +++++ 5 files changed, 281 insertions(+), 5 deletions(-) create mode 100644 fs/xfs/xfs_utf8.c create mode 100644 fs/xfs/xfs_utf8.h diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile index 0f7b300..5cc10f5 100644 --- a/fs/xfs/Makefile +++ b/fs/xfs/Makefile @@ -88,6 +88,7 @@ xfs-y += xfs_aops.o \ xfs_symlink.o \ xfs_sysfs.o \ xfs_trans.o \ + xfs_utf8.o \ xfs_xattr.o \ kmem.o \ uuid.o diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c index 84e5ca9..651ff94 100644 --- a/fs/xfs/libxfs/xfs_dir2.c +++ b/fs/xfs/libxfs/xfs_dir2.c @@ -35,6 +35,7 @@ #include "xfs_error.h" #include "xfs_trace.h" #include "xfs_dinode.h" +#include "xfs_utf8.h" struct xfs_name xfs_name_dotdot = { (unsigned char *)"..", 2, XFS_DIR3_FT_DIR }; @@ -156,10 +157,17 @@ xfs_da_mount( (uint)sizeof(xfs_da_node_entry_t); dageo->magicpct = (dageo->blksize * 37) / 100; - if (xfs_sb_version_hasasciici(&mp->m_sb)) - mp->m_dirnameops = &xfs_ascii_ci_nameops; - else - mp->m_dirnameops = &xfs_default_nameops; + if (xfs_sb_version_hasutf8(&mp->m_sb)) { + if (xfs_sb_version_hasasciici(&mp->m_sb)) + mp->m_dirnameops = &xfs_utf8_ci_nameops; + else + mp->m_dirnameops = &xfs_utf8_nameops; + } else { + if (xfs_sb_version_hasasciici(&mp->m_sb)) + mp->m_dirnameops = &xfs_ascii_ci_nameops; + else + mp->m_dirnameops = &xfs_default_nameops; + } return 0; } diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index cea3d64..fbfb1bb 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -1257,7 +1257,7 @@ xfs_setup_inode( break; case S_IFDIR: lockdep_set_class(&ip->i_lock.mr_lock, &xfs_dir_ilock_class); - if (xfs_sb_version_hasasciici(&XFS_M(inode->i_sb)->m_sb)) + if (xfs_sb_version_hasci(&XFS_M(inode->i_sb)->m_sb)) inode->i_op = &xfs_dir_ci_inode_operations; else inode->i_op = &xfs_dir_inode_operations; diff --git a/fs/xfs/xfs_utf8.c b/fs/xfs/xfs_utf8.c new file mode 100644 index 0000000..7c18e43 --- /dev/null +++ b/fs/xfs/xfs_utf8.c @@ -0,0 +1,242 @@ +/* + * Copyright (c) 2014 SGI. + * 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 "xfs.h" +#include "xfs_fs.h" +#include "xfs_types.h" +#include "xfs_bit.h" +#include "xfs_log_format.h" +#include "xfs_inum.h" +#include "xfs_trans.h" +#include "xfs_trans_resv.h" +#include "xfs_sb.h" +#include "xfs_ag.h" +#include "xfs_da_format.h" +#include "xfs_da_btree.h" +#include "xfs_dir2.h" +#include "xfs_mount.h" +#include "xfs_da_btree.h" +#include "xfs_format.h" +#include "xfs_bmap_btree.h" +#include "xfs_alloc_btree.h" +#include "xfs_dinode.h" +#include "xfs_inode.h" +#include "xfs_inode_item.h" +#include "xfs_bmap.h" +#include "xfs_error.h" +#include "xfs_trace.h" +#include "xfs_utf8.h" +#include + +/* + * xfs nameops using nfkdi + */ + +static xfs_dahash_t +xfs_utf8_hashname( + const unsigned char *name, + int len) +{ + utf8data_t nfkdi; + struct utf8cursor u8c; + xfs_dahash_t hash; + int val; + + nfkdi = utf8nfkdi(utf8version); + hash = 0; + if (utf8ncursor(&u8c, nfkdi, name, len) < 0) + goto blob; + while ((val = utf8byte(&u8c)) > 0) + hash = val ^ rol32(hash, 7); + /* In case of error treat the name as a binary blob. */ + if (val == 0) + return hash; +blob: + return xfs_da_hashname(name, len); +} + +static int +xfs_utf8_normhash( + struct xfs_da_args *args) +{ + utf8data_t nfkdi; + struct utf8cursor u8c; + unsigned char *norm; + ssize_t normlen; + int c; + + nfkdi = utf8nfkdi(utf8version); + /* Failure to normalize is treated as a blob. */ + if ((normlen = utf8nlen(nfkdi, args->name, args->namelen)) < 0) + goto blob; + if (utf8ncursor(&u8c, nfkdi, args->name, args->namelen) < 0) + goto blob; + if (!(norm = kmem_alloc(normlen + 1, KM_NOFS|KM_MAYFAIL))) + return -ENOMEM; + args->norm = norm; + args->normlen = normlen; + while ((c = utf8byte(&u8c)) > 0) + *norm++ = c; + if (c == 0) { + *norm = '\0'; + args->hashval = xfs_da_hashname(args->norm, args->normlen); + return 0; + } + kmem_free(args->norm); +blob: + args->norm = NULL; + args->normlen = -1; + args->hashval = xfs_da_hashname(args->name, args->namelen); + return 0; +} + +static enum xfs_dacmp +xfs_utf8_compname( + struct xfs_da_args *args, + const unsigned char *name, + int len) +{ + utf8data_t nfkdi; + struct utf8cursor u8c; + const unsigned char *norm; + int c; + + ASSERT(args->norm || args->normlen == -1); + + /* Check for an exact match first. */ + if (args->namelen == len && memcmp(args->name, name, len) == 0) + return XFS_CMP_EXACT; + /* xfs_utf8_normhash() set args->normlen to -1 for a blob */ + if (args->normlen < 0) + return XFS_CMP_DIFFERENT; + nfkdi = utf8nfkdi(utf8version); + if (utf8ncursor(&u8c, nfkdi, name, len) < 0) + return XFS_CMP_DIFFERENT; + norm = args->norm; + while ((c = utf8byte(&u8c)) > 0) + if (c != *norm++) + return XFS_CMP_DIFFERENT; + if (c < 0 || *norm != '\0') + return XFS_CMP_DIFFERENT; + return XFS_CMP_MATCH; +} + +struct xfs_nameops xfs_utf8_nameops = { + .hashname = xfs_utf8_hashname, + .normhash = xfs_utf8_normhash, + .compname = xfs_utf8_compname, +}; + +/* + * xfs nameops using nfkdicf + */ + +static xfs_dahash_t +xfs_utf8_ci_hashname( + const unsigned char *name, + int len) +{ + utf8data_t nfkdicf; + struct utf8cursor u8c; + xfs_dahash_t hash; + int val; + + nfkdicf = utf8nfkdicf(utf8version); + hash = 0; + if (utf8ncursor(&u8c, nfkdicf, name, len) < 0) + goto blob; + while ((val = utf8byte(&u8c)) > 0) + hash = val ^ rol32(hash, 7); + /* In case of error treat the name as a binary blob. */ + if (val == 0) + return hash; +blob: + return xfs_da_hashname(name, len); +} + +static int +xfs_utf8_ci_normhash( + struct xfs_da_args *args) +{ + utf8data_t nfkdicf; + struct utf8cursor u8c; + unsigned char *norm; + ssize_t normlen; + int c; + + nfkdicf = utf8nfkdicf(utf8version); + /* Failure to normalize is treated as a blob. */ + if ((normlen = utf8nlen(nfkdicf, args->name, args->namelen)) < 0) + goto blob; + if (utf8ncursor(&u8c, nfkdicf, args->name, args->namelen) < 0) + goto blob; + if (!(norm = kmem_alloc(normlen + 1, KM_NOFS|KM_MAYFAIL))) + return -ENOMEM; + args->norm = norm; + args->normlen = normlen; + while ((c = utf8byte(&u8c)) > 0) + *norm++ = c; + if (c == 0) { + *norm = '\0'; + args->hashval = xfs_da_hashname(args->norm, args->normlen); + return 0; + } + kmem_free(args->norm); +blob: + args->norm = NULL; + args->normlen = -1; + args->hashval = xfs_da_hashname(args->name, args->namelen); + return 0; +} + +static enum xfs_dacmp +xfs_utf8_ci_compname( + struct xfs_da_args *args, + const unsigned char *name, + int len) +{ + utf8data_t nfkdicf; + struct utf8cursor u8c; + const unsigned char *norm; + int c; + + ASSERT(args->norm || args->normlen == -1); + + /* Check for an exact match first. */ + if (args->namelen == len && memcmp(args->name, name, len) == 0) + return XFS_CMP_EXACT; + /* xfs_utf8_ci_normhash() set args->normlen to -1 for a blob */ + if (args->normlen < 0) + return XFS_CMP_DIFFERENT; + nfkdicf = utf8nfkdicf(utf8version); + if (utf8ncursor(&u8c, nfkdicf, name, len) < 0) + return XFS_CMP_DIFFERENT; + norm = args->norm; + while ((c = utf8byte(&u8c)) > 0) + if (c != *norm++) + return XFS_CMP_DIFFERENT; + if (c < 0 || *norm != '\0') + return XFS_CMP_DIFFERENT; + return XFS_CMP_MATCH; +} + +struct xfs_nameops xfs_utf8_ci_nameops = { + .hashname = xfs_utf8_ci_hashname, + .normhash = xfs_utf8_ci_normhash, + .compname = xfs_utf8_ci_compname, +}; diff --git a/fs/xfs/xfs_utf8.h b/fs/xfs/xfs_utf8.h new file mode 100644 index 0000000..97b6a91 --- /dev/null +++ b/fs/xfs/xfs_utf8.h @@ -0,0 +1,25 @@ +/* + * Copyright (c) 2014 SGI. + * 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_UTF8_H +#define XFS_UTF8_H + +extern struct xfs_nameops xfs_utf8_nameops; +extern struct xfs_nameops xfs_utf8_ci_nameops; + +#endif /* XFS_UTF8_H */ -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 15:50:24 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 507FA7F85 for ; Thu, 11 Sep 2014 15:50:24 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1E9958F8037; Thu, 11 Sep 2014 13:50:24 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id E19E04266DC; Thu, 11 Sep 2014 15:50:23 -0500 (CDT) Date: Thu, 11 Sep 2014 15:50:23 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 9/9] xfs: apply utf-8 normalization rules to user extended attribute names Message-ID: <20140911205023.GI13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Apply the same rules for UTF-8 normalization to the names of user-defined extended attributes. System attributes are excluded because they are not user-visible in the first place, and the kernel is expected to know what it is doing when naming them. Signed-off-by: Olaf Weber --- fs/xfs/libxfs/xfs_attr.c | 56 ++++++++++++++++++++++++++++++++++++------- fs/xfs/libxfs/xfs_attr_leaf.c | 11 +++++++-- fs/xfs/xfs_attr_list.c | 11 ++++++++- fs/xfs/xfs_utf8.c | 7 ++++++ 4 files changed, 74 insertions(+), 11 deletions(-) diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c index 353fb42..68e7ce3 100644 --- a/fs/xfs/libxfs/xfs_attr.c +++ b/fs/xfs/libxfs/xfs_attr.c @@ -83,12 +83,14 @@ xfs_attr_args_init( const unsigned char *name, int flags) { + struct xfs_mount *mp = dp->i_mount; + int error; if (!name) return -EINVAL; memset(args, 0, sizeof(*args)); - args->geo = dp->i_mount->m_attr_geo; + args->geo = mp->m_attr_geo; args->whichfork = XFS_ATTR_FORK; args->dp = dp; args->flags = flags; @@ -97,7 +99,11 @@ xfs_attr_args_init( if (args->namelen >= MAXNAMELEN) return -EFAULT; /* match IRIX behaviour */ - args->hashval = xfs_da_hashname(args->name, args->namelen); + if (!xfs_sb_version_hasutf8(&mp->m_sb)) + args->hashval = xfs_da_hashname(args->name, args->namelen); + else if ((error = mp->m_dirnameops->normhash(args)) != 0) + return error; + return 0; } @@ -154,6 +160,9 @@ xfs_attr_get( error = xfs_attr_node_get(&args); xfs_iunlock(ip, lock_mode); + if (args.norm) + kmem_free(args.norm); + *valuelenp = args.valuelen; return error == -EEXIST ? 0 : error; } @@ -216,8 +225,11 @@ xfs_attr_set( return -EIO; error = xfs_attr_args_init(&args, dp, name, flags); - if (error) + if (error) { + if (args.norm) + kmem_free(args.norm); return error; + } args.value = value; args.valuelen = valuelen; @@ -227,8 +239,11 @@ xfs_attr_set( args.total = xfs_attr_calc_size(&args, &local); error = xfs_qm_dqattach(dp, 0); - if (error) + if (error) { + if (args.norm) + kmem_free(args.norm); return error; + } /* * If the inode doesn't have an attribute fork, add one. @@ -239,8 +254,11 @@ xfs_attr_set( XFS_ATTR_SF_ENTSIZE_BYNAME(args.namelen, valuelen); error = xfs_bmap_add_attrfork(dp, sf_size, rsvd); - if (error) + if (error) { + if (args.norm) + kmem_free(args.norm); return error; + } } /* @@ -270,6 +288,8 @@ xfs_attr_set( error = xfs_trans_reserve(args.trans, &tres, args.total, 0); if (error) { xfs_trans_cancel(args.trans, 0); + if (args.norm) + kmem_free(args.norm); return error; } xfs_ilock(dp, XFS_ILOCK_EXCL); @@ -280,6 +300,8 @@ xfs_attr_set( if (error) { xfs_iunlock(dp, XFS_ILOCK_EXCL); xfs_trans_cancel(args.trans, XFS_TRANS_RELEASE_LOG_RES); + if (args.norm) + kmem_free(args.norm); return error; } @@ -327,6 +349,8 @@ xfs_attr_set( XFS_TRANS_RELEASE_LOG_RES); xfs_iunlock(dp, XFS_ILOCK_EXCL); + if (args.norm) + kmem_free(args.norm); return error ? error : err2; } @@ -388,7 +412,8 @@ xfs_attr_set( xfs_trans_log_inode(args.trans, dp, XFS_ILOG_CORE); error = xfs_trans_commit(args.trans, XFS_TRANS_RELEASE_LOG_RES); xfs_iunlock(dp, XFS_ILOCK_EXCL); - + if (args.norm) + kmem_free(args.norm); return error; out: @@ -397,6 +422,8 @@ out: XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT); } xfs_iunlock(dp, XFS_ILOCK_EXCL); + if (args.norm) + kmem_free(args.norm); return error; } @@ -425,8 +452,11 @@ xfs_attr_remove( return -ENOATTR; error = xfs_attr_args_init(&args, dp, name, flags); - if (error) + if (error) { + if (args.norm) + kmem_free(args.norm); return error; + } args.firstblock = &firstblock; args.flist = &flist; @@ -439,8 +469,11 @@ xfs_attr_remove( args.op_flags = XFS_DA_OP_OKNOENT; error = xfs_qm_dqattach(dp, 0); - if (error) + if (error) { + if (args.norm) + kmem_free(args.norm); return error; + } /* * Start our first transaction of the day. @@ -466,6 +499,8 @@ xfs_attr_remove( XFS_ATTRRM_SPACE_RES(mp), 0); if (error) { xfs_trans_cancel(args.trans, 0); + if (args.norm) + kmem_free(args.norm); return error; } @@ -506,6 +541,8 @@ xfs_attr_remove( xfs_trans_log_inode(args.trans, dp, XFS_ILOG_CORE); error = xfs_trans_commit(args.trans, XFS_TRANS_RELEASE_LOG_RES); xfs_iunlock(dp, XFS_ILOCK_EXCL); + if (args.norm) + kmem_free(args.norm); return error; @@ -515,6 +552,9 @@ out: XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT); } xfs_iunlock(dp, XFS_ILOCK_EXCL); + if (args.norm) + kmem_free(args.norm); + return error; } diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c index b1f73db..c991a88 100644 --- a/fs/xfs/libxfs/xfs_attr_leaf.c +++ b/fs/xfs/libxfs/xfs_attr_leaf.c @@ -661,6 +661,7 @@ int xfs_attr_shortform_to_leaf(xfs_da_args_t *args) { xfs_inode_t *dp; + struct xfs_mount *mp; xfs_attr_shortform_t *sf; xfs_attr_sf_entry_t *sfe; xfs_da_args_t nargs; @@ -673,6 +674,7 @@ xfs_attr_shortform_to_leaf(xfs_da_args_t *args) trace_xfs_attr_sf_to_leaf(args); dp = args->dp; + mp = dp->i_mount; ifp = dp->i_afp; sf = (xfs_attr_shortform_t *)ifp->if_u1.if_data; size = be16_to_cpu(sf->hdr.totsize); @@ -726,13 +728,18 @@ xfs_attr_shortform_to_leaf(xfs_da_args_t *args) nargs.namelen = sfe->namelen; nargs.value = &sfe->nameval[nargs.namelen]; nargs.valuelen = sfe->valuelen; - nargs.hashval = xfs_da_hashname(sfe->nameval, - sfe->namelen); nargs.flags = XFS_ATTR_NSP_ONDISK_TO_ARGS(sfe->flags); + if (!xfs_sb_version_hasutf8(&mp->m_sb)) + nargs.hashval = xfs_da_hashname(sfe->nameval, + sfe->namelen); + else if ((error = mp->m_dirnameops->normhash(&nargs)) != 0) + goto out; error = xfs_attr3_leaf_lookup_int(bp, &nargs); /* set a->index */ ASSERT(error == -ENOATTR); error = xfs_attr3_leaf_add(bp, &nargs); ASSERT(error != -ENOSPC); + if (nargs.norm) + kmem_free(nargs.norm); if (error) goto out; sfe = XFS_ATTR_SF_NEXTENTRY(sfe); diff --git a/fs/xfs/xfs_attr_list.c b/fs/xfs/xfs_attr_list.c index 62db83a..4075d54 100644 --- a/fs/xfs/xfs_attr_list.c +++ b/fs/xfs/xfs_attr_list.c @@ -76,12 +76,14 @@ xfs_attr_shortform_list(xfs_attr_list_context_t *context) xfs_attr_shortform_t *sf; xfs_attr_sf_entry_t *sfe; xfs_inode_t *dp; + struct xfs_mount *mp; int sbsize, nsbuf, count, i; int error; ASSERT(context != NULL); dp = context->dp; ASSERT(dp != NULL); + mp = dp->i_mount; ASSERT(dp->i_afp != NULL); sf = (xfs_attr_shortform_t *)dp->i_afp->if_u1.if_data; ASSERT(sf != NULL); @@ -154,7 +156,14 @@ xfs_attr_shortform_list(xfs_attr_list_context_t *context) } sbp->entno = i; - sbp->hash = xfs_da_hashname(sfe->nameval, sfe->namelen); + /* ATTR_ROOT and ATTR_SECURE are never normalized. */ + if (!xfs_sb_version_hasutf8(&mp->m_sb) || + (sfe->flags & (ATTR_ROOT|ATTR_SECURE))) { + sbp->hash = xfs_da_hashname(sfe->nameval, sfe->namelen); + } else { + sbp->hash = mp->m_dirnameops->hashname(sfe->nameval, + sfe->namelen); + } sbp->name = sfe->nameval; sbp->namelen = sfe->namelen; /* These are bytes, and both on-disk, don't endian-flip */ diff --git a/fs/xfs/xfs_utf8.c b/fs/xfs/xfs_utf8.c index 7c18e43..8df05fe 100644 --- a/fs/xfs/xfs_utf8.c +++ b/fs/xfs/xfs_utf8.c @@ -38,6 +38,7 @@ #include "xfs_inode.h" #include "xfs_inode_item.h" #include "xfs_bmap.h" +#include "xfs_attr.h" #include "xfs_error.h" #include "xfs_trace.h" #include "xfs_utf8.h" @@ -80,6 +81,9 @@ xfs_utf8_normhash( ssize_t normlen; int c; + /* Don't normalize system attribute names. */ + if (args->flags & (ATTR_ROOT|ATTR_SECURE)) + goto blob; nfkdi = utf8nfkdi(utf8version); /* Failure to normalize is treated as a blob. */ if ((normlen = utf8nlen(nfkdi, args->name, args->namelen)) < 0) @@ -179,6 +183,9 @@ xfs_utf8_ci_normhash( ssize_t normlen; int c; + /* Don't normalize system attribute names. */ + if (args->flags & (ATTR_ROOT|ATTR_SECURE)) + goto blob; nfkdicf = utf8nfkdicf(utf8version); /* Failure to normalize is treated as a blob. */ if ((normlen = utf8nlen(nfkdicf, args->name, args->namelen)) < 0) -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 15:51:47 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 64F057F85 for ; Thu, 11 Sep 2014 15:51:47 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id DC3EFAC00E; Thu, 11 Sep 2014 13:51:46 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 8263F4266DC; Thu, 11 Sep 2014 15:51:46 -0500 (CDT) Date: Thu, 11 Sep 2014 15:51:46 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 01/13] libxfs: return the first match during case-insensitive lookup Message-ID: <20140911205146.GJ13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Change the XFS case-insensitive lookup code to return the first match found, even if it is not an exact match. Whether a filesystem uses case-insensitive lookups is determined by a superblock bit set during filesystem creation. This means that normal use cannot create two files that both match the same filename. Signed-off-by: Olaf Weber --- libxfs/xfs_dir2_block.c | 17 ++++------- libxfs/xfs_dir2_leaf.c | 38 ++++------------------- libxfs/xfs_dir2_node.c | 80 ++++++++++++++++++------------------------------- libxfs/xfs_dir2_sf.c | 8 ++--- 4 files changed, 44 insertions(+), 99 deletions(-) diff --git a/libxfs/xfs_dir2_block.c b/libxfs/xfs_dir2_block.c index cede01f..2880431 100644 --- a/libxfs/xfs_dir2_block.c +++ b/libxfs/xfs_dir2_block.c @@ -705,28 +705,21 @@ xfs_dir2_block_lookup_int( dep = (xfs_dir2_data_entry_t *) ((char *)hdr + xfs_dir2_dataptr_to_off(mp, addr)); /* - * Compare name and if it's an exact match, return the index - * and buffer. If it's the first case-insensitive match, store - * the index and buffer and continue looking for an exact match. + * Compare name and if it's a match, return the + * index and buffer. */ cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen); - if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { + if (cmp != XFS_CMP_DIFFERENT) { args->cmpresult = cmp; *bpp = bp; *entno = mid; - if (cmp == XFS_CMP_EXACT) - return 0; + return 0; } } while (++mid < be32_to_cpu(btp->count) && be32_to_cpu(blp[mid].hashval) == hash); ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); - /* - * Here, we can only be doing a lookup (not a rename or replace). - * If a case-insensitive match was found earlier, return success. - */ - if (args->cmpresult == XFS_CMP_CASE) - return 0; + ASSERT(args->cmpresult == XFS_CMP_DIFFERENT); /* * No match, release the buffer and return ENOENT. */ diff --git a/libxfs/xfs_dir2_leaf.c b/libxfs/xfs_dir2_leaf.c index 8e0cbc9..b1901d3 100644 --- a/libxfs/xfs_dir2_leaf.c +++ b/libxfs/xfs_dir2_leaf.c @@ -1246,7 +1246,6 @@ xfs_dir2_leaf_lookup_int( xfs_mount_t *mp; /* filesystem mount point */ xfs_dir2_db_t newdb; /* new data block number */ xfs_trans_t *tp; /* transaction pointer */ - xfs_dir2_db_t cidb = -1; /* case match data block no. */ enum xfs_dacmp cmp; /* name compare result */ struct xfs_dir2_leaf_entry *ents; struct xfs_dir3_icleaf_hdr leafhdr; @@ -1307,47 +1306,22 @@ xfs_dir2_leaf_lookup_int( dep = (xfs_dir2_data_entry_t *)((char *)dbp->b_addr + xfs_dir2_dataptr_to_off(mp, be32_to_cpu(lep->address))); /* - * Compare name and if it's an exact match, return the index - * and buffer. If it's the first case-insensitive match, store - * the index and buffer and continue looking for an exact match. + * Compare name and if it's a match, return the index + * and buffer. */ cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen); - if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { + if (cmp != XFS_CMP_DIFFERENT) { args->cmpresult = cmp; *indexp = index; - /* case exact match: return the current buffer. */ - if (cmp == XFS_CMP_EXACT) { - *dbpp = dbp; - return 0; - } - cidb = curdb; + *dbpp = dbp; + return 0; } } ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); - /* - * Here, we can only be doing a lookup (not a rename or remove). - * If a case-insensitive match was found earlier, re-read the - * appropriate data block if required and return it. - */ - if (args->cmpresult == XFS_CMP_CASE) { - ASSERT(cidb != -1); - if (cidb != curdb) { - xfs_trans_brelse(tp, dbp); - error = xfs_dir3_data_read(tp, dp, - xfs_dir2_db_to_da(mp, cidb), - -1, &dbp); - if (error) { - xfs_trans_brelse(tp, lbp); - return error; - } - } - *dbpp = dbp; - return 0; - } + ASSERT(args->cmpresult == XFS_CMP_DIFFERENT); /* * No match found, return ENOENT. */ - ASSERT(cidb == -1); if (dbp) xfs_trans_brelse(tp, dbp); xfs_trans_brelse(tp, lbp); diff --git a/libxfs/xfs_dir2_node.c b/libxfs/xfs_dir2_node.c index 3737e4e..fb27506 100644 --- a/libxfs/xfs_dir2_node.c +++ b/libxfs/xfs_dir2_node.c @@ -702,6 +702,7 @@ xfs_dir2_leafn_lookup_for_entry( xfs_dir2_db_t curdb = -1; /* current data block number */ xfs_dir2_data_entry_t *dep; /* data block entry */ xfs_inode_t *dp; /* incore directory inode */ + int di = -1; /* data entry index */ int error; /* error return value */ int index; /* leaf entry index */ xfs_dir2_leaf_t *leaf; /* leaf structure */ @@ -733,6 +734,7 @@ xfs_dir2_leafn_lookup_for_entry( if (state->extravalid) { curbp = state->extrablk.bp; curdb = state->extrablk.blkno; + di = state->extrablk.index; } /* * Loop over leaf entries with the right hash value. @@ -757,27 +759,20 @@ xfs_dir2_leafn_lookup_for_entry( */ if (newdb != curdb) { /* - * If we had a block before that we aren't saving - * for a CI name, drop it + * If we had a block, drop it */ - if (curbp && (args->cmpresult == XFS_CMP_DIFFERENT || - curdb != state->extrablk.blkno)) + if (curbp) { xfs_trans_brelse(tp, curbp); + di = -1; + } /* - * If needing the block that is saved with a CI match, - * use it otherwise read in the new data block. + * Read in the new data block. */ - if (args->cmpresult != XFS_CMP_DIFFERENT && - newdb == state->extrablk.blkno) { - ASSERT(state->extravalid); - curbp = state->extrablk.bp; - } else { - error = xfs_dir3_data_read(tp, dp, - xfs_dir2_db_to_da(mp, newdb), - -1, &curbp); - if (error) - return error; - } + error = xfs_dir3_data_read(tp, dp, + xfs_dir2_db_to_da(mp, newdb), + -1, &curbp); + if (error) + return error; xfs_dir3_data_check(dp, curbp); curdb = newdb; } @@ -787,53 +782,36 @@ xfs_dir2_leafn_lookup_for_entry( dep = (xfs_dir2_data_entry_t *)((char *)curbp->b_addr + xfs_dir2_dataptr_to_off(mp, be32_to_cpu(lep->address))); /* - * Compare the entry and if it's an exact match, return - * EEXIST immediately. If it's the first case-insensitive - * match, store the block & inode number and continue looking. + * Compare the entry and if it's a match, return + * EEXIST immediately. */ cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen); - if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { - /* If there is a CI match block, drop it */ - if (args->cmpresult != XFS_CMP_DIFFERENT && - curdb != state->extrablk.blkno) - xfs_trans_brelse(tp, state->extrablk.bp); + if (cmp != XFS_CMP_DIFFERENT) { args->cmpresult = cmp; args->inumber = be64_to_cpu(dep->inumber); args->filetype = xfs_dir3_dirent_get_ftype(mp, dep); - *indexp = index; - state->extravalid = 1; - state->extrablk.bp = curbp; - state->extrablk.blkno = curdb; - state->extrablk.index = (int)((char *)dep - - (char *)curbp->b_addr); - state->extrablk.magic = XFS_DIR2_DATA_MAGIC; - curbp->b_ops = &xfs_dir3_data_buf_ops; - xfs_trans_buf_set_type(tp, curbp, XFS_BLFT_DIR_DATA_BUF); - if (cmp == XFS_CMP_EXACT) - return XFS_ERROR(EEXIST); + error = EEXIST; + goto out; } } + /* Didn't find a match */ + error = ENOENT; ASSERT(index == leafhdr.count || (args->op_flags & XFS_DA_OP_OKNOENT)); +out: if (curbp) { - if (args->cmpresult == XFS_CMP_DIFFERENT) { - /* Giving back last used data block. */ - state->extravalid = 1; - state->extrablk.bp = curbp; - state->extrablk.index = -1; - state->extrablk.blkno = curdb; - state->extrablk.magic = XFS_DIR2_DATA_MAGIC; - curbp->b_ops = &xfs_dir3_data_buf_ops; - xfs_trans_buf_set_type(tp, curbp, XFS_BLFT_DIR_DATA_BUF); - } else { - /* If the curbp is not the CI match block, drop it */ - if (state->extrablk.bp != curbp) - xfs_trans_brelse(tp, curbp); - } + /* Giving back last used data block. */ + state->extravalid = 1; + state->extrablk.bp = curbp; + state->extrablk.index = di; + state->extrablk.blkno = curdb; + state->extrablk.magic = XFS_DIR2_DATA_MAGIC; + curbp->b_ops = &xfs_dir3_data_buf_ops; + xfs_trans_buf_set_type(tp, curbp, XFS_BLFT_DIR_DATA_BUF); } else { state->extravalid = 0; } *indexp = index; - return XFS_ERROR(ENOENT); + return XFS_ERROR(error); } /* diff --git a/libxfs/xfs_dir2_sf.c b/libxfs/xfs_dir2_sf.c index 7580333..7b01d43 100644 --- a/libxfs/xfs_dir2_sf.c +++ b/libxfs/xfs_dir2_sf.c @@ -833,13 +833,12 @@ xfs_dir2_sf_lookup( for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count; i++, sfep = xfs_dir3_sf_nextentry(dp->i_mount, sfp, sfep)) { /* - * Compare name and if it's an exact match, return the inode - * number. If it's the first case-insensitive match, store the - * inode number and continue looking for an exact match. + * Compare name and if it's a match, return the inode + * number. */ cmp = dp->i_mount->m_dirnameops->compname(args, sfep->name, sfep->namelen); - if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { + if (cmp != XFS_CMP_DIFFERENT) { args->cmpresult = cmp; args->inumber = xfs_dir3_sfe_get_ino(dp->i_mount, sfp, sfep); @@ -848,6 +847,7 @@ xfs_dir2_sf_lookup( if (cmp == XFS_CMP_EXACT) return XFS_ERROR(EEXIST); ci_sfep = sfep; + break; } } ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 15:52:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 7426E7F82 for ; Thu, 11 Sep 2014 15:52:39 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id 046E8AC001; Thu, 11 Sep 2014 13:52:39 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id B87544266DC; Thu, 11 Sep 2014 15:52:38 -0500 (CDT) Date: Thu, 11 Sep 2014 15:52:38 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 02/13] libxfs: rename XFS_CMP_CASE to XFS_CMP_MATCH Message-ID: <20140911205238.GK13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Rename XFS_CMP_CASE to XFS_CMP_MATCH. With unicode filenames and normalization, different strings will match on other criteria than case insensitivity. Signed-off-by: Olaf Weber --- include/xfs_da_btree.h | 2 +- libxfs/xfs_dir2.c | 9 ++++++--- libxfs/xfs_dir2_node.c | 2 +- 3 files changed, 8 insertions(+), 5 deletions(-) diff --git a/include/xfs_da_btree.h b/include/xfs_da_btree.h index e492dca..3d9f9dd 100644 --- a/include/xfs_da_btree.h +++ b/include/xfs_da_btree.h @@ -34,7 +34,7 @@ struct zone; enum xfs_dacmp { XFS_CMP_DIFFERENT, /* names are completely different */ XFS_CMP_EXACT, /* names are exactly the same */ - XFS_CMP_CASE /* names are same but differ in case */ + XFS_CMP_MATCH /* names are same but differ in encoding */ }; /* diff --git a/libxfs/xfs_dir2.c b/libxfs/xfs_dir2.c index 4c8c836..57e98a3 100644 --- a/libxfs/xfs_dir2.c +++ b/libxfs/xfs_dir2.c @@ -72,7 +72,7 @@ xfs_ascii_ci_compname( continue; if (tolower(args->name[i]) != tolower(name[i])) return XFS_CMP_DIFFERENT; - result = XFS_CMP_CASE; + result = XFS_CMP_MATCH; } return result; @@ -248,8 +248,11 @@ xfs_dir_cilookup_result( { if (args->cmpresult == XFS_CMP_DIFFERENT) return ENOENT; - if (args->cmpresult != XFS_CMP_CASE || - !(args->op_flags & XFS_DA_OP_CILOOKUP)) + if (args->cmpresult == XFS_CMP_EXACT) + return EEXIST; + ASSERT(args->cmpresult == XFS_CMP_MATCH); + /* Only dup the found name if XFS_DA_OP_CILOOKUP is set. */ + if (!(args->op_flags & XFS_DA_OP_CILOOKUP)) return EEXIST; args->value = kmem_alloc(len, KM_NOFS | KM_MAYFAIL); diff --git a/libxfs/xfs_dir2_node.c b/libxfs/xfs_dir2_node.c index fb27506..550ca99 100644 --- a/libxfs/xfs_dir2_node.c +++ b/libxfs/xfs_dir2_node.c @@ -2034,7 +2034,7 @@ xfs_dir2_node_lookup( error = xfs_da3_node_lookup_int(state, &rval); if (error) rval = error; - else if (rval == ENOENT && args->cmpresult == XFS_CMP_CASE) { + else if (rval == ENOENT && args->cmpresult == XFS_CMP_MATCH) { /* If a CI match, dup the actual name and return EEXIST */ xfs_dir2_data_entry_t *dep; -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 15:53:57 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 410317F86 for ; Thu, 11 Sep 2014 15:53:57 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id 103D18F8037; Thu, 11 Sep 2014 13:53:57 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id CF8A44266DC; Thu, 11 Sep 2014 15:53:56 -0500 (CDT) Date: Thu, 11 Sep 2014 15:53:56 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 03/13] libxfs: add xfs_nameops.normhash Message-ID: <20140911205356.GL13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Add a normhash callout to the xfs_nameops. This callout takes an xfs_da_args structure as its argument, and calculates a hash value over the name. It may in the process create a normalized form of the name, and assign that to the norm/normlen fields in the xfs_da_args structure. Changes: The pointer in kmem_free() was type converted to suppress compiler warnings. Signed-off-by: Olaf Weber --- include/xfs_da_btree.h | 5 ++++- libxfs/xfs_da_btree.c | 9 ++++++++ libxfs/xfs_dir2.c | 56 +++++++++++++++++++++++++++++++++++++++----------- 3 files changed, 57 insertions(+), 13 deletions(-) diff --git a/include/xfs_da_btree.h b/include/xfs_da_btree.h index 3d9f9dd..06b50bf 100644 --- a/include/xfs_da_btree.h +++ b/include/xfs_da_btree.h @@ -42,7 +42,9 @@ enum xfs_dacmp { */ typedef struct xfs_da_args { const __uint8_t *name; /* string (maybe not NULL terminated) */ - int namelen; /* length of string (maybe no NULL) */ + const __uint8_t *norm; /* normalized name (may be NULL) */ + int namelen; /* length of string (maybe no NULL) */ + int normlen; /* length of normalized name */ __uint8_t filetype; /* filetype of inode for directories */ __uint8_t *value; /* set of bytes (maybe contain NULLs) */ int valuelen; /* length of value */ @@ -131,6 +133,7 @@ typedef struct xfs_da_state { */ struct xfs_nameops { xfs_dahash_t (*hashname)(struct xfs_name *); + int (*normhash)(struct xfs_da_args *); enum xfs_dacmp (*compname)(struct xfs_da_args *, const unsigned char *, int); }; diff --git a/libxfs/xfs_da_btree.c b/libxfs/xfs_da_btree.c index b731b54..eb97317 100644 --- a/libxfs/xfs_da_btree.c +++ b/libxfs/xfs_da_btree.c @@ -2000,8 +2000,17 @@ xfs_default_hashname( return xfs_da_hashname(name->name, name->len); } +STATIC int +xfs_da_normhash( + struct xfs_da_args *args) +{ + args->hashval = xfs_da_hashname(args->name, args->namelen); + return 0; +} + const struct xfs_nameops xfs_default_nameops = { .hashname = xfs_default_hashname, + .normhash = xfs_da_normhash, .compname = xfs_da_compname }; diff --git a/libxfs/xfs_dir2.c b/libxfs/xfs_dir2.c index 57e98a3..e52d082 100644 --- a/libxfs/xfs_dir2.c +++ b/libxfs/xfs_dir2.c @@ -54,6 +54,21 @@ xfs_ascii_ci_hashname( return hash; } +STATIC int +xfs_ascii_ci_normhash( + struct xfs_da_args *args) +{ + xfs_dahash_t hash; + int i; + + for (i = 0, hash = 0; i < args->namelen; i++) + hash = tolower(args->name[i]) ^ rol32(hash, 7); + + args->hashval = hash; + return 0; +} + + STATIC enum xfs_dacmp xfs_ascii_ci_compname( struct xfs_da_args *args, @@ -80,6 +95,7 @@ xfs_ascii_ci_compname( static struct xfs_nameops xfs_ascii_ci_nameops = { .hashname = xfs_ascii_ci_hashname, + .normhash = xfs_ascii_ci_normhash, .compname = xfs_ascii_ci_compname, }; @@ -211,7 +227,6 @@ xfs_dir_createname( args.name = name->name; args.namelen = name->len; args.filetype = name->type; - args.hashval = dp->i_mount->m_dirnameops->hashname(name); args.inumber = inum; args.dp = dp; args.firstblock = first; @@ -220,19 +235,24 @@ xfs_dir_createname( args.whichfork = XFS_DATA_FORK; args.trans = tp; args.op_flags = XFS_DA_OP_ADDNAME | XFS_DA_OP_OKNOENT; + if ((rval = dp->i_mount->m_dirnameops->normhash(&args))) + return rval; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) rval = xfs_dir2_sf_addname(&args); else if ((rval = xfs_dir2_isblock(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_block_addname(&args); else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_leaf_addname(&args); else rval = xfs_dir2_node_addname(&args); +out_free: + if (args.norm) + kmem_free((void *)args.norm); return rval; } @@ -289,22 +309,23 @@ xfs_dir_lookup( args.name = name->name; args.namelen = name->len; args.filetype = name->type; - args.hashval = dp->i_mount->m_dirnameops->hashname(name); args.dp = dp; args.whichfork = XFS_DATA_FORK; args.trans = tp; args.op_flags = XFS_DA_OP_OKNOENT; if (ci_name) args.op_flags |= XFS_DA_OP_CILOOKUP; + if ((rval = dp->i_mount->m_dirnameops->normhash(&args))) + return rval; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) rval = xfs_dir2_sf_lookup(&args); else if ((rval = xfs_dir2_isblock(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_block_lookup(&args); else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_leaf_lookup(&args); else @@ -318,6 +339,9 @@ xfs_dir_lookup( ci_name->len = args.valuelen; } } +out_free: + if (args.norm) + kmem_free((void *)args.norm); return rval; } @@ -345,7 +369,6 @@ xfs_dir_removename( args.name = name->name; args.namelen = name->len; args.filetype = name->type; - args.hashval = dp->i_mount->m_dirnameops->hashname(name); args.inumber = ino; args.dp = dp; args.firstblock = first; @@ -353,19 +376,24 @@ xfs_dir_removename( args.total = total; args.whichfork = XFS_DATA_FORK; args.trans = tp; + if ((rval = dp->i_mount->m_dirnameops->normhash(&args))) + return rval; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) rval = xfs_dir2_sf_removename(&args); else if ((rval = xfs_dir2_isblock(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_block_removename(&args); else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_leaf_removename(&args); else rval = xfs_dir2_node_removename(&args); +out_free: + if (args.norm) + kmem_free((void *)args.norm); return rval; } @@ -395,7 +423,6 @@ xfs_dir_replace( args.name = name->name; args.namelen = name->len; args.filetype = name->type; - args.hashval = dp->i_mount->m_dirnameops->hashname(name); args.inumber = inum; args.dp = dp; args.firstblock = first; @@ -403,19 +430,24 @@ xfs_dir_replace( args.total = total; args.whichfork = XFS_DATA_FORK; args.trans = tp; + if ((rval = dp->i_mount->m_dirnameops->normhash(&args))) + return rval; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) rval = xfs_dir2_sf_replace(&args); else if ((rval = xfs_dir2_isblock(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_block_replace(&args); else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_leaf_replace(&args); else rval = xfs_dir2_node_replace(&args); +out_free: + if (args.norm) + kmem_free((void *)args.norm); return rval; } -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 15:55:35 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 297D27F99 for ; Thu, 11 Sep 2014 15:55:35 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id 9E2C1AC001; Thu, 11 Sep 2014 13:55:34 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 405CD4266DC; Thu, 11 Sep 2014 15:55:34 -0500 (CDT) Date: Thu, 11 Sep 2014 15:55:34 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 04/13] libxfs: change interface of xfs_nameops.normhash Message-ID: <20140911205534.GM13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber With the introduction of the xfs_nameops.normhash callout, all uses of the hashname callout now occur in places where an xfs_name structure must be explicitly created just to match the parameter passing convention of this callout. Change the arguments to a const unsigned char * and int instead. Signed-off-by: Olaf Weber --- db/check.c | 6 ++---- include/xfs_da_btree.h | 2 +- libxfs/xfs_da_btree.c | 9 +-------- libxfs/xfs_dir2.c | 10 ++++++---- libxfs/xfs_dir2_block.c | 5 +---- libxfs/xfs_dir2_data.c | 6 ++---- repair/phase6.c | 2 +- 7 files changed, 14 insertions(+), 26 deletions(-) diff --git a/db/check.c b/db/check.c index 4fd9fd0..49359d7 100644 --- a/db/check.c +++ b/db/check.c @@ -2212,7 +2212,6 @@ process_data_dir_v2( int stale = 0; int tag_err; __be16 *tagp; - struct xfs_name xname; data = iocur_top->data; block = iocur_top->data; @@ -2323,9 +2322,8 @@ process_data_dir_v2( tag_err += be16_to_cpu(*tagp) != (char *)dep - (char *)data; addr = xfs_dir2_db_off_to_dataptr(mp, db, (char *)dep - (char *)data); - xname.name = dep->name; - xname.len = dep->namelen; - dir_hash_add(mp->m_dirnameops->hashname(&xname), addr); + dir_hash_add(mp->m_dirnameops->hashname(dep->name, + dep->namelen), addr); ptr += xfs_dir3_data_entsize(mp, dep->namelen); count++; lastfree = 0; diff --git a/include/xfs_da_btree.h b/include/xfs_da_btree.h index 06b50bf..9674bed 100644 --- a/include/xfs_da_btree.h +++ b/include/xfs_da_btree.h @@ -132,7 +132,7 @@ typedef struct xfs_da_state { * Name ops for directory and/or attr name operations */ struct xfs_nameops { - xfs_dahash_t (*hashname)(struct xfs_name *); + xfs_dahash_t (*hashname)(const unsigned char *, int); int (*normhash)(struct xfs_da_args *); enum xfs_dacmp (*compname)(struct xfs_da_args *, const unsigned char *, int); diff --git a/libxfs/xfs_da_btree.c b/libxfs/xfs_da_btree.c index eb97317..7be5eaf 100644 --- a/libxfs/xfs_da_btree.c +++ b/libxfs/xfs_da_btree.c @@ -1993,13 +1993,6 @@ xfs_da_compname( XFS_CMP_EXACT : XFS_CMP_DIFFERENT; } -static xfs_dahash_t -xfs_default_hashname( - struct xfs_name *name) -{ - return xfs_da_hashname(name->name, name->len); -} - STATIC int xfs_da_normhash( struct xfs_da_args *args) @@ -2009,7 +2002,7 @@ xfs_da_normhash( } const struct xfs_nameops xfs_default_nameops = { - .hashname = xfs_default_hashname, + .hashname = xfs_da_hashname, .normhash = xfs_da_normhash, .compname = xfs_da_compname }; diff --git a/libxfs/xfs_dir2.c b/libxfs/xfs_dir2.c index e52d082..1893931 100644 --- a/libxfs/xfs_dir2.c +++ b/libxfs/xfs_dir2.c @@ -43,13 +43,14 @@ const unsigned char xfs_mode_to_ftype[S_IFMT >> S_SHIFT] = { */ STATIC xfs_dahash_t xfs_ascii_ci_hashname( - struct xfs_name *name) + const unsigned char *name, + int len) { xfs_dahash_t hash; int i; - for (i = 0, hash = 0; i < name->len; i++) - hash = tolower(name->name[i]) ^ rol32(hash, 7); + for (i = 0, hash = 0; i < len; i++) + hash = tolower(name[i]) ^ rol32(hash, 7); return hash; } @@ -475,7 +476,8 @@ xfs_dir_canenter( args.name = name->name; args.namelen = name->len; args.filetype = name->type; - args.hashval = dp->i_mount->m_dirnameops->hashname(name); + args.hashval = dp->i_mount->m_dirnameops->hashname(name->name, + name->len); args.dp = dp; args.whichfork = XFS_DATA_FORK; args.trans = tp; diff --git a/libxfs/xfs_dir2_block.c b/libxfs/xfs_dir2_block.c index 2880431..1a8b5f5 100644 --- a/libxfs/xfs_dir2_block.c +++ b/libxfs/xfs_dir2_block.c @@ -1047,7 +1047,6 @@ xfs_dir2_sf_to_block( xfs_dir2_sf_hdr_t *sfp; /* shortform header */ __be16 *tagp; /* end of data entry */ xfs_trans_t *tp; /* transaction pointer */ - struct xfs_name name; struct xfs_ifork *ifp; trace_xfs_dir2_sf_to_block(args); @@ -1205,10 +1204,8 @@ xfs_dir2_sf_to_block( tagp = xfs_dir3_data_entry_tag_p(mp, dep); *tagp = cpu_to_be16((char *)dep - (char *)hdr); xfs_dir2_data_log_entry(tp, bp, dep); - name.name = sfep->name; - name.len = sfep->namelen; blp[2 + i].hashval = cpu_to_be32(mp->m_dirnameops-> - hashname(&name)); + hashname(sfep->name, sfep->namelen)); blp[2 + i].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(mp, (char *)dep - (char *)hdr)); offset = (int)((char *)(tagp + 1) - (char *)hdr); diff --git a/libxfs/xfs_dir2_data.c b/libxfs/xfs_dir2_data.c index dc9df4d..9b3f750 100644 --- a/libxfs/xfs_dir2_data.c +++ b/libxfs/xfs_dir2_data.c @@ -46,7 +46,6 @@ __xfs_dir3_data_check( xfs_mount_t *mp; /* filesystem mount point */ char *p; /* current data position */ int stale; /* count of stale leaves */ - struct xfs_name name; mp = bp->b_target->bt_mount; hdr = bp->b_addr; @@ -142,9 +141,8 @@ __xfs_dir3_data_check( addr = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk, (xfs_dir2_data_aoff_t) ((char *)dep - (char *)hdr)); - name.name = dep->name; - name.len = dep->namelen; - hash = mp->m_dirnameops->hashname(&name); + hash = mp->m_dirnameops-> + hashname(dep->name, dep->namelen); for (i = 0; i < be32_to_cpu(btp->count); i++) { if (be32_to_cpu(lep[i].address) == addr && be32_to_cpu(lep[i].hashval) == hash) diff --git a/repair/phase6.c b/repair/phase6.c index f13069f..f374fd0 100644 --- a/repair/phase6.c +++ b/repair/phase6.c @@ -195,7 +195,7 @@ dir_hash_add( dup = 0; if (!junk) { - hash = mp->m_dirnameops->hashname(&xname); + hash = mp->m_dirnameops->hashname(name, namelen); byhash = DIR_HASH_FUNC(hashtab, hash); /* -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 15:56:32 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 628F07F9C for ; Thu, 11 Sep 2014 15:56:32 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id E39ACAC001; Thu, 11 Sep 2014 13:56:31 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 8E7FC4266DC; Thu, 11 Sep 2014 15:56:31 -0500 (CDT) Date: Thu, 11 Sep 2014 15:56:31 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 05/13] libxfs: add a superblock feature bit to indicate UTF-8 support. Message-ID: <20140911205631.GN13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber When UTF-8 support is enabled, the xfs_dir_ci_inode_operations must be installed. Add xfs_sb_version_hasci(), which tests both the borgbit and the utf8bit, and returns true if at least one of them is set. Replace calls to xfs_sb_version_hasasciici() as needed. Signed-off-by: Olaf Weber --- include/xfs_fs.h | 2 +- include/xfs_sb.h | 25 ++++++++++++++++++++++++- 2 files changed, 25 insertions(+), 2 deletions(-) diff --git a/include/xfs_fs.h b/include/xfs_fs.h index 59c40fc..1be539d 100644 --- a/include/xfs_fs.h +++ b/include/xfs_fs.h @@ -239,7 +239,7 @@ typedef struct xfs_fsop_resblks { #define XFS_FSOP_GEOM_FLAGS_V5SB 0x8000 /* version 5 superblock */ #define XFS_FSOP_GEOM_FLAGS_FTYPE 0x10000 /* inode directory types */ #define XFS_FSOP_GEOM_FLAGS_FINOBT 0x20000 /* free inode btree */ - +#define XFS_FSOP_GEOM_FLAGS_UTF8 0x40000 /* utf8 filenames */ /* * Minimum and maximum sizes need for growth checks. diff --git a/include/xfs_sb.h b/include/xfs_sb.h index 950d1ea..5ac7f06 100644 --- a/include/xfs_sb.h +++ b/include/xfs_sb.h @@ -82,6 +82,8 @@ struct xfs_trans; #define XFS_SB_VERSION2_RESERVED4BIT 0x00000004 #define XFS_SB_VERSION2_ATTR2BIT 0x00000008 /* Inline attr rework */ #define XFS_SB_VERSION2_PARENTBIT 0x00000010 /* parent pointers */ +#define XFS_SB_VERSION2_PARENTBIT 0x00000010 /* parent pointers */ +#define XFS_SB_VERSION2_UTF8BIT 0x00000020 /* utf8 names */ #define XFS_SB_VERSION2_PROJID32BIT 0x00000080 /* 32 bit project id */ #define XFS_SB_VERSION2_CRCBIT 0x00000100 /* metadata CRCs */ #define XFS_SB_VERSION2_FTYPE 0x00000200 /* inode type in dir */ @@ -89,6 +91,7 @@ struct xfs_trans; #define XFS_SB_VERSION2_OKREALFBITS \ (XFS_SB_VERSION2_LAZYSBCOUNTBIT | \ XFS_SB_VERSION2_ATTR2BIT | \ + XFS_SB_VERSION2_UTF8BIT | \ XFS_SB_VERSION2_PROJID32BIT | \ XFS_SB_VERSION2_FTYPE) #define XFS_SB_VERSION2_OKSASHFBITS \ @@ -600,8 +603,10 @@ xfs_sb_has_ro_compat_feature( } #define XFS_SB_FEAT_INCOMPAT_FTYPE (1 << 0) /* filetype in dirent */ +#define XFS_SB_FEAT_INCOMPAT_UTF8 (1 << 1) /* utf-8 name support */ #define XFS_SB_FEAT_INCOMPAT_ALL \ - (XFS_SB_FEAT_INCOMPAT_FTYPE) + (XFS_SB_FEAT_INCOMPAT_FTYPE | \ + XFS_SB_FEAT_INCOMPAT_UTF8) #define XFS_SB_FEAT_INCOMPAT_UNKNOWN ~XFS_SB_FEAT_INCOMPAT_ALL static inline bool @@ -649,6 +654,24 @@ static inline int xfs_sb_version_hasfinobt(xfs_sb_t *sbp) (sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_FINOBT); } +static inline int xfs_sb_version_hasutf8(xfs_sb_t *sbp) +{ + return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 && + xfs_sb_has_incompat_feature(sbp, XFS_SB_FEAT_INCOMPAT_UTF8)) || + (xfs_sb_version_hasmorebits(sbp) && + (sbp->sb_features2 & XFS_SB_VERSION2_UTF8BIT)); +} + +/* + * Special case: there are a number of places where we need to test + * both the borgbit and the utf8bit, and take the same action if + * either of those is set. + */ +static inline int xfs_sb_version_hasci(xfs_sb_t *sbp) +{ + return xfs_sb_version_hasasciici(sbp) || xfs_sb_version_hasutf8(sbp); +} + /* * end of superblock version macros */ -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 15:57:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 960097F9C for ; Thu, 11 Sep 2014 15:57:51 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7A4C38F8037; Thu, 11 Sep 2014 13:57:51 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 49D264266DC; Thu, 11 Sep 2014 15:57:51 -0500 (CDT) Date: Thu, 11 Sep 2014 15:57:51 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 06/13] xfsprogs: add unicode character database files Message-ID: <20140911205751.GO13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Add files from the Unicode Character Database, version 7.0.0, to the source. A helper program that generates a trie used for normalization from these files is part of a separate commit. Signed-off-by: Olaf Weber --- [v2: removed large unicode files. download them as below. -bpm] cd support/ucd-7.0.0 wget http://www.unicode.org/Public/7.0.0/ucd/CaseFolding.txt wget http://www.unicode.org/Public/7.0.0/ucd/DerivedAge.txt wget http://www.unicode.org/Public/7.0.0/ucd/extracted/DerivedCombiningClass.txt wget http://www.unicode.org/Public/7.0.0/ucd/DerivedCoreProperties.txt wget http://www.unicode.org/Public/7.0.0/ucd/NormalizationCorrections.txt wget http://www.unicode.org/Public/7.0.0/ucd/NormalizationTest.txt wget http://www.unicode.org/Public/7.0.0/ucd/UnicodeData.txt --- support/ucd-7.0.0/README | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 support/ucd-7.0.0/README diff --git a/support/ucd-7.0.0/README b/support/ucd-7.0.0/README new file mode 100644 index 0000000..d713e66 --- /dev/null +++ b/support/ucd-7.0.0/README @@ -0,0 +1,33 @@ +The files in this directory are part of the Unicode Character Database +for version 7.0.0 of the Unicode standard. + +The full set of files can be found here: + + http://www.unicode.org/Public/7.0.0/ucd/ + +The latest released version of the UCD can be found here: + + http://www.unicode.org/Public/UCD/latest/ + +The files in this directory are identical, except that they have been +renamed with a suffix indicating the unicode version. + +Individual source links: + + http://www.unicode.org/Public/7.0.0/ucd/CaseFolding.txt + http://www.unicode.org/Public/7.0.0/ucd/DerivedAge.txt + http://www.unicode.org/Public/7.0.0/ucd/extracted/DerivedCombiningClass.txt + http://www.unicode.org/Public/7.0.0/ucd/DerivedCoreProperties.txt + http://www.unicode.org/Public/7.0.0/ucd/NormalizationCorrections.txt + http://www.unicode.org/Public/7.0.0/ucd/NormalizationTest.txt + http://www.unicode.org/Public/7.0.0/ucd/UnicodeData.txt + +md5sums + + 9a92b2bfe56c6719def926bab524fefd CaseFolding-7.0.0.txt + 07b8b1027eb824cf0835314e94f23d2e DerivedAge-7.0.0.txt + 90c3340b16821e2f2153acdbe6fc6180 DerivedCombiningClass-7.0.0.txt + c41c0601f808116f623de47110ed4f93 DerivedCoreProperties-7.0.0.txt + 522720ddfc150d8e63a2518634829bce NormalizationCorrections-7.0.0.txt + 1f35175eba4a2ad795db489f789ae352 NormalizationTest-7.0.0.txt + c8355655731d75e6a3de8c20d7e601ba UnicodeData-7.0.0.txt -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 15:59:02 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD, T_FILL_THIS_FORM_SHORT autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 181C77F9C for ; Thu, 11 Sep 2014 15:59:02 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay2.corp.sgi.com (Postfix) with ESMTP id B3CB6304032; Thu, 11 Sep 2014 13:59:01 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 1AD8A4266DC; Thu, 11 Sep 2014 15:59:01 -0500 (CDT) Date: Thu, 11 Sep 2014 15:59:01 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 07/13] libxfs: add trie generator and supporting code for UTF-8. Message-ID: <20140911205901.GP13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber mkutf8data.c is the source for a program that generates utf8data.h, which contains the trie that utf8norm.c uses. The trie is generated from the Unicode 7.0.0 data files. The format of the utf8data[] table is described in utf8norm.c. Supporting functions for UTF-8 normalization are in utf8norm.c with the header utf8norm.h. Two normalization forms are supported: nfkdi and nfkdicf. nfkdi: - Apply unicode normalization form NFKD. - Remove any Default_Ignorable_Code_Point. nfkdicf: - Apply unicode normalization form NFKD. - Remove any Default_Ignorable_Code_Point. - Apply a full casefold (C + F). For the purposes of the code, a string is valid UTF-8 if: - The values encoded are 0x1..0x10FFFF. - The surrogate codepoints 0xD800..0xDFFFF are not encoded. - The shortest possible encoding is used for all values. The supporting functions work on null-terminated strings (utf8 prefix) and on length-limited strings (utf8n prefix). Signed-off-by: Olaf Weber --- include/utf8norm.h | 111 ++ libxfs/utf8norm.c | 628 ++++++++++ support/mkutf8data.c | 3232 ++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 3971 insertions(+) create mode 100644 include/utf8norm.h create mode 100644 libxfs/utf8norm.c create mode 100644 support/mkutf8data.c diff --git a/include/utf8norm.h b/include/utf8norm.h new file mode 100644 index 0000000..6aa3391 --- /dev/null +++ b/include/utf8norm.h @@ -0,0 +1,111 @@ +/* + * Copyright (c) 2014 SGI. + * 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 UTF8NORM_H +#define UTF8NORM_H + +/* An opaque type used to determine the normalization in use. */ +typedef const struct utf8data *utf8data_t; + +/* Encoding a unicode version number as a single unsigned int. */ +#define UNICODE_MAJ_SHIFT (16) +#define UNICODE_MIN_SHIFT (8) + +#define UNICODE_AGE(MAJ,MIN,REV) \ + (((unsigned int)(MAJ) << UNICODE_MAJ_SHIFT) | \ + ((unsigned int)(MIN) << UNICODE_MIN_SHIFT) | \ + ((unsigned int)(REV))) + +/* Highest unicode version supported by the data tables. */ +extern const unsigned int utf8version; + +/* + * Look for the correct utf8data_t for a unicode version. + * Returns NULL if the version requested is too new. + * + * Two normalization forms are supported: nfkdi and nfkdicf. + * + * nfkdi: + * - Apply unicode normalization form NFKD. + * - Remove any Default_Ignorable_Code_Point. + * + * nfkdicf: + * - Apply unicode normalization form NFKD. + * - Remove any Default_Ignorable_Code_Point. + * - Apply a full casefold (C + F). + */ +extern utf8data_t utf8nfkdi(unsigned int); +extern utf8data_t utf8nfkdicf(unsigned int); + +/* + * Determine the maximum age of any unicode character in the string. + * Returns 0 if only unassigned code points are present. + * Returns -1 if the input is not valid UTF-8. + */ +extern int utf8agemax(utf8data_t, const char *); +extern int utf8nagemax(utf8data_t, const char *, size_t); + +/* + * Determine the minimum age of any unicode character in the string. + * Returns 0 if any unassigned code points are present. + * Returns -1 if the input is not valid UTF-8. + */ +extern int utf8agemin(utf8data_t, const char *); +extern int utf8nagemin(utf8data_t, const char *, size_t); + +/* + * Determine the length of the normalized from of the string, + * excluding any terminating NULL byte. + * Returns 0 if only ignorable code points are present. + * Returns -1 if the input is not valid UTF-8. + */ +extern ssize_t utf8len(utf8data_t, const char *); +extern ssize_t utf8nlen(utf8data_t, const char *, size_t); + +/* + * Cursor structure used by the normalizer. + */ +struct utf8cursor { + utf8data_t data; + const char *s; + const char *p; + const char *ss; + const char *sp; + unsigned int len; + unsigned int slen; + short int ccc; + short int nccc; +}; + +/* + * Initialize a utf8cursor to normalize a string. + * Returns 0 on success. + * Returns -1 on failure. + */ +extern int utf8cursor(struct utf8cursor *, utf8data_t, const char *); +extern int utf8ncursor(struct utf8cursor *, utf8data_t, const char *, size_t); + +/* + * Get the next byte in the normalization. + * Returns a value > 0 && < 256 on success. + * Returns 0 when the end of the normalization is reached. + * Returns -1 if the string being normalized is not valid UTF-8. + */ +extern int utf8byte(struct utf8cursor *); + +#endif /* UTF8NORM_H */ diff --git a/libxfs/utf8norm.c b/libxfs/utf8norm.c new file mode 100644 index 0000000..6232d1a --- /dev/null +++ b/libxfs/utf8norm.c @@ -0,0 +1,628 @@ +/* + * Copyright (c) 2014 SGI. + * 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 "xfs.h" +#include "xfs_types.h" +#include + +struct utf8data { + unsigned int maxage; + unsigned int offset; +}; + +#define __INCLUDED_FROM_UTF8NORM_C__ +#include +#undef __INCLUDED_FROM_UTF8NORM_C__ + +/* + * UTF-8 valid ranges. + * + * The UTF-8 encoding spreads the bits of a 32bit word over several + * bytes. This table gives the ranges that can be held and how they'd + * be represented. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000000 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000000 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * There is an additional requirement on UTF-8, in that only the + * shortest representation of a 32bit value is to be used. A decoder + * must not decode sequences that do not satisfy this requirement. + * Thus the allowed ranges have a lower bound. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000080 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000800 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00010000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00200000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x04000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * Actual unicode characters are limited to the range 0x0 - 0x10FFFF, + * 17 planes of 65536 values. This limits the sequences actually seen + * even more, to just the following. + * + * 0 - 0x7F: 0 - 0x7F + * 0x80 - 0x7FF: 0xC2 0x80 - 0xDF 0xBF + * 0x800 - 0xFFFF: 0xE0 0xA0 0x80 - 0xEF 0xBF 0xBF + * 0x10000 - 0x10FFFF: 0xF0 0x90 0x80 0x80 - 0xF4 0x8F 0xBF 0xBF + * + * Within those ranges the surrogates 0xD800 - 0xDFFF are not allowed. + * + * Note that the longest sequence seen with valid usage is 4 bytes, + * the same a single UTF-32 character. This makes the UTF-8 + * representation of Unicode strictly smaller than UTF-32. + * + * The shortest sequence requirement was introduced by: + * Corrigendum #1: UTF-8 Shortest Form + * It can be found here: + * http://www.unicode.org/versions/corrigendum1.html + * + */ + +/* + * Return the number of bytes used by the current UTF-8 sequence. + * Assumes the input points to the first byte of a valid UTF-8 + * sequence. + */ +static inline int +utf8clen(const char *s) +{ + unsigned char c = *s; + return 1 + (c >= 0xC0) + (c >= 0xE0) + (c >= 0xF0); +} + +/* + * utf8trie_t + * + * A compact binary tree, used to decode UTF-8 characters. + * + * Internal nodes are one byte for the node itself, and up to three + * bytes for an offset into the tree. The first byte contains the + * following information: + * NEXTBYTE - flag - advance to next byte if set + * BITNUM - 3 bit field - the bit number to tested + * OFFLEN - 2 bit field - number of bytes in the offset + * if offlen == 0 (non-branching node) + * RIGHTPATH - 1 bit field - set if the following node is for the + * right-hand path (tested bit is set) + * TRIENODE - 1 bit field - set if the following node is an internal + * node, otherwise it is a leaf node + * if offlen != 0 (branching node) + * LEFTNODE - 1 bit field - set if the left-hand node is internal + * RIGHTNODE - 1 bit field - set if the right-hand node is internal + * + * Due to the way utf8 works, there cannot be branching nodes with + * NEXTBYTE set, and moreover those nodes always have a righthand + * descendant. + */ +typedef const unsigned char utf8trie_t; +#define BITNUM 0x07 +#define NEXTBYTE 0x08 +#define OFFLEN 0x30 +#define OFFLEN_SHIFT 4 +#define RIGHTPATH 0x40 +#define TRIENODE 0x80 +#define RIGHTNODE 0x40 +#define LEFTNODE 0x80 + +/* + * utf8leaf_t + * + * The leaves of the trie are embedded in the trie, and so the same + * underlying datatype: unsigned char. + * + * leaf[0]: The unicode version, stored as a generation number that is + * an index into utf8agetab[]. With this we can filter code + * points based on the unicode version in which they were + * defined. The CCC of a non-defined code point is 0. + * leaf[1]: Canonical Combining Class. During normalization, we need + * to do a stable sort into ascending order of all characters + * with a non-zero CCC that occur between two characters with + * a CCC of 0, or at the begin or end of a string. + * The unicode standard guarantees that all CCC values are + * between 0 and 254 inclusive, which leaves 255 available as + * a special value. + * Code points with CCC 0 are known as stoppers. + * leaf[2]: Decomposition. If leaf[1] == 255, then leaf[2] is the + * start of a NUL-terminated string that is the decomposition + * of the character. + * The CCC of a decomposable character is the same as the CCC + * of the first character of its decomposition. + * Some characters decompose as the empty string: these are + * characters with the Default_Ignorable_Code_Point property. + * These do affect normalization, as they all have CCC 0. + * + * The decompositions in the trie have been fully expanded. + * + * Casefolding, if applicable, is also done using decompositions. + * + * The trie is constructed in such a way that leaves exist for all + * UTF-8 sequences that match the criteria from the "UTF-8 valid + * ranges" comment above, and only for those sequences. Therefore a + * lookup in the trie can be used to validate the UTF-8 input. + */ +typedef const unsigned char utf8leaf_t; + +#define LEAF_GEN(LEAF) ((LEAF)[0]) +#define LEAF_CCC(LEAF) ((LEAF)[1]) +#define LEAF_STR(LEAF) ((const char*)((LEAF) + 2)) + +#define MINCCC (0) +#define MAXCCC (254) +#define STOPPER (0) +#define DECOMPOSE (255) + +/* + * Use trie to scan s, touching at most len bytes. + * Returns the leaf if one exists, NULL otherwise. + * + * A non-NULL return guarantees that the UTF-8 sequence starting at s + * is well-formed and corresponds to a known unicode code point. The + * shorthand for this will be "is valid UTF-8 unicode". + */ +static utf8leaf_t * +utf8nlookup(utf8data_t data, const char *s, size_t len) +{ + utf8trie_t *trie = utf8data + data->offset; + int offlen; + int offset; + int mask; + int node; + + if (!data) + return NULL; + if (len == 0) + return NULL; + node = 1; + while (node) { + offlen = (*trie & OFFLEN) >> OFFLEN_SHIFT; + if (*trie & NEXTBYTE) { + if (--len == 0) + return NULL; + s++; + } + mask = 1 << (*trie & BITNUM); + if (*s & mask) { + /* Right leg */ + if (offlen) { + /* Right node at offset of trie */ + node = (*trie & RIGHTNODE); + offset = trie[offlen]; + while (--offlen) { + offset <<= 8; + offset |= trie[offlen]; + } + trie += offset; + } else if (*trie & RIGHTPATH) { + /* Right node after this node */ + node = (*trie & TRIENODE); + trie++; + } else { + /* No right node. */ + node = 0; + trie = NULL; + } + } else { + /* Left leg */ + if (offlen) { + /* Left node after this node. */ + node = (*trie & LEFTNODE); + trie += offlen + 1; + } else if (*trie & RIGHTPATH) { + /* No left node. */ + node = 0; + trie = NULL; + } else { + /* Left node after this node */ + node = (*trie & TRIENODE); + trie++; + } + } + } + return trie; +} + +/* + * Use trie to scan s. + * Returns the leaf if one exists, NULL otherwise. + * + * Forwards to utf8nlookup(). + */ +static utf8leaf_t * +utf8lookup(utf8data_t data, const char *s) +{ + return utf8nlookup(data, s, (size_t)-1); +} + +/* + * Maximum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if only non-assigned code points are used. + */ +int +utf8agemax(utf8data_t data, const char *s) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!data) + return -1; + while (*s) { + if (!(leaf = utf8lookup(data, s))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age > age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} + +/* + * Minimum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if non-assigned code points are used. + */ +int +utf8agemin(utf8data_t data, const char *s) +{ + utf8leaf_t *leaf; + int age = data->maxage; + int leaf_age; + + if (!data) + return -1; + while (*s) { + if (!(leaf = utf8lookup(data, s))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age < age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemax(utf8data_t data, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!data) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(data, s, len))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age > age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemin(utf8data_t data, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int leaf_age; + int age = data->maxage; + + if (!data) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(data, s, len))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age < age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} + +/* + * Length of the normalization of s. + * Return -1 if s is not valid UTF-8 unicode. + * + * A string of Default_Ignorable_Code_Point has length 0. + */ +ssize_t +utf8len(utf8data_t data, const char *s) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!data) + return -1; + while (*s) { + if (!(leaf = utf8lookup(data, s))) + return -1; + if (utf8agetab[LEAF_GEN(leaf)] > data->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + s += utf8clen(s); + } + return ret; +} + +/* + * Length of the normalization of s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +ssize_t +utf8nlen(utf8data_t data, const char *s, size_t len) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!data) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(data, s, len))) + return -1; + if (utf8agetab[LEAF_GEN(leaf)] > data->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + len -= utf8clen(s); + s += utf8clen(s); + } + return ret; +} + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * u8c : pointer to cursor. + * data : utf8data_t to use for normalization. + * s : string. + * len : length of s. + * + * Returns -1 on error, 0 on success. + */ +int +utf8ncursor( + struct utf8cursor *u8c, + utf8data_t data, + const char *s, + size_t len) +{ + if (!data) + return -1; + if (!s) + return -1; + u8c->data = data; + u8c->s = s; + u8c->p = NULL; + u8c->ss = NULL; + u8c->sp = NULL; + u8c->len = len; + u8c->slen = 0; + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + /* Check we didn't clobber the maximum length. */ + if (u8c->len != len) + return -1; + /* The first byte of s may not be an utf8 continuation. */ + if (len > 0 && (*s & 0xC0) == 0x80) + return -1; + return 0; +} + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * u8c : pointer to cursor. + * data : utf8data_t to use for normalization. + * s : NUL-terminated string. + * + * Returns -1 on error, 0 on success. + */ +int +utf8cursor( + struct utf8cursor *u8c, + utf8data_t data, + const char *s) +{ + return utf8ncursor(u8c, data, s, (unsigned int)-1); +} + +/* + * Get one byte from the normalized form of the string described by u8c. + * + * Returns the byte cast to an unsigned char on succes, and -1 on failure. + * + * The cursor keeps track of the location in the string in u8c->s. + * When a character is decomposed, the current location is stored in + * u8c->p, and u8c->s is set to the start of the decomposition. Note + * that bytes from a decomposition do not count against u8c->len. + * + * Characters are emitted if they match the current CCC in u8c->ccc. + * Hitting end-of-string while u8c->ccc == STOPPER means we're done, + * and the function returns 0 in that case. + * + * Sorting by CCC is done by repeatedly scanning the string. The + * values of u8c->s and u8c->p are stored in u8c->ss and u8c->sp at + * the start of the scan. The first pass finds the lowest CCC to be + * emitted and stores it in u8c->nccc, the second pass emits the + * characters with this CCC and finds the next lowest CCC. This limits + * the number of passes to 1 + the number of different CCCs in the + * sequence being scanned. + * + * Therefore: + * u8c->p != NULL -> a decomposition is being scanned. + * u8c->ss != NULL -> this is a repeating scan. + * u8c->ccc == -1 -> this is the first scan of a repeating scan. + */ +int +utf8byte(struct utf8cursor *u8c) +{ + utf8leaf_t *leaf; + int ccc; + + for (;;) { + /* Check for the end of a decomposed character. */ + if (u8c->p && *u8c->s == '\0') { + u8c->s = u8c->p; + u8c->p = NULL; + } + + /* Check for end-of-string. */ + if (!u8c->p && (u8c->len == 0 || *u8c->s == '\0')) { + /* There is no next byte. */ + if (u8c->ccc == STOPPER) + return 0; + /* End-of-string during a scan counts as a stopper. */ + ccc = STOPPER; + goto ccc_mismatch; + } else if ((*u8c->s & 0xC0) == 0x80) { + /* This is a continuation of the current character. */ + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Look up the data for the current character. */ + if (u8c->p) + leaf = utf8lookup(u8c->data, u8c->s); + else + leaf = utf8nlookup(u8c->data, u8c->s, u8c->len); + + /* No leaf found implies that the input is a binary blob. */ + if (!leaf) + return -1; + + /* Characters that are too new have CCC 0. */ + if (utf8agetab[LEAF_GEN(leaf)] > u8c->data->maxage) { + ccc = STOPPER; + } else if ((ccc = LEAF_CCC(leaf)) == DECOMPOSE) { + u8c->len -= utf8clen(u8c->s); + u8c->p = u8c->s + utf8clen(u8c->s); + u8c->s = LEAF_STR(leaf); + /* Empty decomposition implies CCC 0. */ + if (*u8c->s == '\0') { + if (u8c->ccc == STOPPER) + continue; + ccc = STOPPER; + goto ccc_mismatch; + } + leaf = utf8lookup(u8c->data, u8c->s); + ccc = LEAF_CCC(leaf); + } + + /* + * If this is not a stopper, then see if it updates + * the next canonical class to be emitted. + */ + if (ccc != STOPPER && u8c->ccc < ccc && ccc < u8c->nccc) + u8c->nccc = ccc; + + /* + * Return the current byte if this is the current + * combining class. + */ + if (ccc == u8c->ccc) { + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Current combining class mismatch. */ + ccc_mismatch: + if (u8c->nccc == STOPPER) { + /* + * Scan forward for the first canonical class + * to be emitted. Save the position from + * which to restart. + */ + u8c->ccc = MINCCC - 1; + u8c->nccc = ccc; + u8c->sp = u8c->p; + u8c->ss = u8c->s; + u8c->slen = u8c->len; + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (ccc != STOPPER) { + /* Not a stopper, and not the ccc we're emitting. */ + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (u8c->nccc != MAXCCC + 1) { + /* At a stopper, restart for next ccc. */ + u8c->ccc = u8c->nccc; + u8c->nccc = MAXCCC + 1; + u8c->s = u8c->ss; + u8c->p = u8c->sp; + u8c->len = u8c->slen; + } else { + /* All done, proceed from here. */ + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + u8c->sp = NULL; + u8c->ss = NULL; + u8c->slen = 0; + } + } +} + +const struct utf8data * +utf8nfkdi(unsigned int maxage) +{ + int i = sizeof(utf8nfkdidata)/sizeof(utf8nfkdidata[0]) - 1; + + while (maxage < utf8nfkdidata[i].maxage) + i--; + if (maxage > utf8nfkdidata[i].maxage) + return NULL; + return &utf8nfkdidata[i]; +} + +const struct utf8data * +utf8nfkdicf(unsigned int maxage) +{ + int i = sizeof(utf8nfkdicfdata)/sizeof(utf8nfkdicfdata[0]) - 1; + + while (maxage < utf8nfkdicfdata[i].maxage) + i--; + if (maxage > utf8nfkdicfdata[i].maxage) + return NULL; + return &utf8nfkdicfdata[i]; +} diff --git a/support/mkutf8data.c b/support/mkutf8data.c new file mode 100644 index 0000000..e5c3507 --- /dev/null +++ b/support/mkutf8data.c @@ -0,0 +1,3232 @@ +/* + * Copyright (c) 2014 SGI. + * 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 + */ + +/* Generator for a compact trie for unicode normalization */ + +#include +#include +#include +#include +#include +#include +#include +#include + +/* Default names of the in- and output files. */ + +#define AGE_NAME "DerivedAge.txt" +#define CCC_NAME "DerivedCombiningClass.txt" +#define PROP_NAME "DerivedCoreProperties.txt" +#define DATA_NAME "UnicodeData.txt" +#define FOLD_NAME "CaseFolding.txt" +#define NORM_NAME "NormalizationCorrections.txt" +#define TEST_NAME "NormalizationTest.txt" +#define UTF8_NAME "utf8data.h" + +const char *age_name = AGE_NAME; +const char *ccc_name = CCC_NAME; +const char *prop_name = PROP_NAME; +const char *data_name = DATA_NAME; +const char *fold_name = FOLD_NAME; +const char *norm_name = NORM_NAME; +const char *test_name = TEST_NAME; +const char *utf8_name = UTF8_NAME; + +int verbose = 0; + +/* An arbitrary line size limit on input lines. */ + +#define LINESIZE 1024 +char line[LINESIZE]; +char buf0[LINESIZE]; +char buf1[LINESIZE]; +char buf2[LINESIZE]; +char buf3[LINESIZE]; + +const char *argv0; + +/* ------------------------------------------------------------------ */ + +/* + * Unicode version numbers consist of three parts: major, minor, and a + * revision. These numbers are packed into an unsigned int to obtain + * a single version number. + * + * To save space in the generated trie, the unicode version is not + * stored directly, instead we calculate a generation number from the + * unicode versions seen in the DerivedAge file, and use that as an + * index into a table of unicode versions. + */ +#define UNICODE_MAJ_SHIFT (16) +#define UNICODE_MIN_SHIFT (8) + +#define UNICODE_MAJ_MAX ((unsigned short)-1) +#define UNICODE_MIN_MAX ((unsigned char)-1) +#define UNICODE_REV_MAX ((unsigned char)-1) + +#define UNICODE_AGE(MAJ,MIN,REV) \ + (((unsigned int)(MAJ) << UNICODE_MAJ_SHIFT) | \ + ((unsigned int)(MIN) << UNICODE_MIN_SHIFT) | \ + ((unsigned int)(REV))) + +unsigned int *ages; +int ages_count; + +unsigned int unicode_maxage; + +static int +age_valid(unsigned int major, unsigned int minor, unsigned int revision) +{ + if (major > UNICODE_MAJ_MAX) + return 0; + if (minor > UNICODE_MIN_MAX) + return 0; + if (revision > UNICODE_REV_MAX) + return 0; + return 1; +} + +/* ------------------------------------------------------------------ */ + +/* + * utf8trie_t + * + * A compact binary tree, used to decode UTF-8 characters. + * + * Internal nodes are one byte for the node itself, and up to three + * bytes for an offset into the tree. The first byte contains the + * following information: + * NEXTBYTE - flag - advance to next byte if set + * BITNUM - 3 bit field - the bit number to tested + * OFFLEN - 2 bit field - number of bytes in the offset + * if offlen == 0 (non-branching node) + * RIGHTPATH - 1 bit field - set if the following node is for the + * right-hand path (tested bit is set) + * TRIENODE - 1 bit field - set if the following node is an internal + * node, otherwise it is a leaf node + * if offlen != 0 (branching node) + * LEFTNODE - 1 bit field - set if the left-hand node is internal + * RIGHTNODE - 1 bit field - set if the right-hand node is internal + * + * Due to the way utf8 works, there cannot be branching nodes with + * NEXTBYTE set, and moreover those nodes always have a righthand + * descendant. + */ +typedef unsigned char utf8trie_t; +#define BITNUM 0x07 +#define NEXTBYTE 0x08 +#define OFFLEN 0x30 +#define OFFLEN_SHIFT 4 +#define RIGHTPATH 0x40 +#define TRIENODE 0x80 +#define RIGHTNODE 0x40 +#define LEFTNODE 0x80 + +/* + * utf8leaf_t + * + * The leaves of the trie are embedded in the trie, and so the same + * underlying datatype, unsigned char. + * + * leaf[0]: The unicode version, stored as a generation number that is + * an index into utf8agetab[]. With this we can filter code + * points based on the unicode version in which they were + * defined. The CCC of a non-defined code point is 0. + * leaf[1]: Canonical Combining Class. During normalization, we need + * to do a stable sort into ascending order of all characters + * with a non-zero CCC that occur between two characters with + * a CCC of 0, or at the begin or end of a string. + * The unicode standard guarantees that all CCC values are + * between 0 and 254 inclusive, which leaves 255 available as + * a special value. + * Code points with CCC 0 are known as stoppers. + * leaf[2]: Decomposition. If leaf[1] == 255, then leaf[2] is the + * start of a NUL-terminated string that is the decomposition + * of the character. + * The CCC of a decomposable character is the same as the CCC + * of the first character of its decomposition. + * Some characters decompose as the empty string: these are + * characters with the Default_Ignorable_Code_Point property. + * These do affect normalization, as they all have CCC 0. + * + * The decompositions in the trie have been fully expanded. + * + * Casefolding, if applicable, is also done using decompositions. + */ +typedef unsigned char utf8leaf_t; + +#define LEAF_GEN(LEAF) ((LEAF)[0]) +#define LEAF_CCC(LEAF) ((LEAF)[1]) +#define LEAF_STR(LEAF) ((const char*)((LEAF) + 2)) + +#define MAXGEN (255) + +#define MINCCC (0) +#define MAXCCC (254) +#define STOPPER (0) +#define DECOMPOSE (255) + +struct tree; +static utf8leaf_t *utf8nlookup(struct tree *, const char *, size_t); +static utf8leaf_t *utf8lookup(struct tree *, const char *); + +unsigned char *utf8data; +size_t utf8data_size; + +utf8trie_t *nfkdi; +utf8trie_t *nfkdicf; + +/* ------------------------------------------------------------------ */ + +/* + * UTF8 valid ranges. + * + * The UTF-8 encoding spreads the bits of a 32bit word over several + * bytes. This table gives the ranges that can be held and how they'd + * be represented. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000000 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000000 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * There is an additional requirement on UTF-8, in that only the + * shortest representation of a 32bit value is to be used. A decoder + * must not decode sequences that do not satisfy this requirement. + * Thus the allowed ranges have a lower bound. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000080 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000800 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00010000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00200000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x04000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * Actual unicode characters are limited to the range 0x0 - 0x10FFFF, + * 17 planes of 65536 values. This limits the sequences actually seen + * even more, to just the following. + * + * 0 - 0x7f: 0 0x7f + * 0x80 - 0x7ff: 0xc2 0x80 0xdf 0xbf + * 0x800 - 0xffff: 0xe0 0xa0 0x80 0xef 0xbf 0xbf + * 0x10000 - 0x10ffff: 0xf0 0x90 0x80 0x80 0xf4 0x8f 0xbf 0xbf + * + * Even within those ranges not all values are allowed: the surrogates + * 0xd800 - 0xdfff should never be seen. + * + * Note that the longest sequence seen with valid usage is 4 bytes, + * the same a single UTF-32 character. This makes the UTF-8 + * representation of Unicode strictly smaller than UTF-32. + * + * The shortest sequence requirement was introduced by: + * Corrigendum #1: UTF-8 Shortest Form + * It can be found here: + * http://www.unicode.org/versions/corrigendum1.html + * + */ + +#define UTF8_2_BITS 0xC0 +#define UTF8_3_BITS 0xE0 +#define UTF8_4_BITS 0xF0 +#define UTF8_N_BITS 0x80 +#define UTF8_2_MASK 0xE0 +#define UTF8_3_MASK 0xF0 +#define UTF8_4_MASK 0xF8 +#define UTF8_N_MASK 0xC0 +#define UTF8_V_MASK 0x3F +#define UTF8_V_SHIFT 6 + +static int +utf8key(unsigned int key, char keyval[]) +{ + int keylen; + + if (key < 0x80) { + keyval[0] = key; + keylen = 1; + } else if (key < 0x800) { + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_2_BITS; + keylen = 2; + } else if (key < 0x10000) { + keyval[2] = key & UTF8_V_MASK; + keyval[2] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_3_BITS; + keylen = 3; + } else if (key < 0x110000) { + keyval[3] = key & UTF8_V_MASK; + keyval[3] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[2] = key & UTF8_V_MASK; + keyval[2] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_4_BITS; + keylen = 4; + } else { + printf("%#x: illegal key\n", key); + keylen = 0; + } + return keylen; +} + +static unsigned int +utf8code(const char *str) +{ + const unsigned char *s = (const unsigned char*)str; + unsigned int unichar = 0; + + if (*s < 0x80) { + unichar = *s; + } else if (*s < UTF8_3_BITS) { + unichar = *s++ & 0x1F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s & 0x3F; + } else if (*s < UTF8_4_BITS) { + unichar = *s++ & 0x0F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s++ & 0x3F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s & 0x3F; + } else { + unichar = *s++ & 0x0F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s++ & 0x3F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s++ & 0x3F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s & 0x3F; + } + return unichar; +} + +static int +utf32valid(unsigned int unichar) +{ + return unichar < 0x110000; +} + +#define NODE 1 +#define LEAF 0 + +struct tree { + void *root; + int childnode; + const char *type; + unsigned int maxage; + struct tree *next; + int (*leaf_equal)(void *, void *); + void (*leaf_print)(void *, int); + int (*leaf_mark)(void *); + int (*leaf_size)(void *); + int *(*leaf_index)(struct tree *, void *); + unsigned char *(*leaf_emit)(void *, unsigned char *); + int leafindex[0x110000]; + int index; +}; + +struct node { + int index; + int offset; + int mark; + int size; + struct node *parent; + void *left; + void *right; + unsigned char bitnum; + unsigned char nextbyte; + unsigned char leftnode; + unsigned char rightnode; + unsigned int keybits; + unsigned int keymask; +}; + +/* + * Example lookup function for a tree. + */ +static void * +lookup(struct tree *tree, const char *key) +{ + struct node *node; + void *leaf = NULL; + + node = tree->root; + while (!leaf && node) { + if (node->nextbyte) + key++; + if (*key & (1 << (node->bitnum & 7))) { + /* Right leg */ + if (node->rightnode == NODE) { + node = node->right; + } else if (node->rightnode == LEAF) { + leaf = node->right; + } else { + node = NULL; + } + } else { + /* Left leg */ + if (node->leftnode == NODE) { + node = node->left; + } else if (node->leftnode == LEAF) { + leaf = node->left; + } else { + node = NULL; + } + } + } + + return leaf; +} + +/* + * A simple non-recursive tree walker: keep track of visits to the + * left and right branches in the leftmask and rightmask. + */ +static void +tree_walk(struct tree *tree) +{ + struct node *node; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int indent = 1; + int nodes, singletons, leaves; + + nodes = singletons = leaves = 0; + + printf("%s_%x root %p\n", tree->type, tree->maxage, tree->root); + if (tree->childnode == LEAF) { + assert(tree->root); + tree->leaf_print(tree->root, indent); + leaves = 1; + } else { + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + printf("%*snode @ %p bitnum %d nextbyte %d" + " left %p right %p mask %x bits %x\n", + indent, "", node, + node->bitnum, node->nextbyte, + node->left, node->right, + node->keymask, node->keybits); + nodes += 1; + if (!(node->left && node->right)) + singletons += 1; + + while (node) { + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + tree->leaf_print(node->left, + indent+1); + leaves += 1; + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if ((rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + tree->leaf_print(node->right, + indent+1); + leaves += 1; + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + indent -= 1; + } + } + } + printf("nodes %d leaves %d singletons %d\n", + nodes, leaves, singletons); +} + +/* + * Allocate an initialize a new internal node. + */ +static struct node * +alloc_node(struct node *parent) +{ + struct node *node; + int bitnum; + + node = malloc(sizeof(*node)); + node->left = node->right = NULL; + node->parent = parent; + node->leftnode = NODE; + node->rightnode = NODE; + node->keybits = 0; + node->keymask = 0; + node->mark = 0; + node->index = 0; + node->offset = -1; + node->size = 4; + + if (node->parent) { + bitnum = parent->bitnum; + if ((bitnum & 7) == 0) { + node->bitnum = bitnum + 7 + 8; + node->nextbyte = 1; + } else { + node->bitnum = bitnum - 1; + node->nextbyte = 0; + } + } else { + node->bitnum = 7; + node->nextbyte = 0; + } + + return node; +} + +/* + * Insert a new leaf into the tree, and collapse any subtrees that are + * fully populated and end in identical leaves. A nextbyte tagged + * internal node will not be removed to preserve the tree's integrity. + * Note that due to the structure of utf8, no nextbyte tagged node + * will be a candidate for removal. + */ +static int +insert(struct tree *tree, char *key, int keylen, void *leaf) +{ + struct node *node; + struct node *parent; + void **cursor; + int keybits; + + assert(keylen >= 1 && keylen <= 4); + + node = NULL; + cursor = &tree->root; + keybits = 8 * keylen; + + /* Insert, creating path along the way. */ + while (keybits) { + if (!*cursor) + *cursor = alloc_node(node); + node = *cursor; + if (node->nextbyte) + key++; + if (*key & (1 << (node->bitnum & 7))) + cursor = &node->right; + else + cursor = &node->left; + keybits--; + } + *cursor = leaf; + + /* Merge subtrees if possible. */ + while (node) { + if (*key & (1 << (node->bitnum & 7))) + node->rightnode = LEAF; + else + node->leftnode = LEAF; + if (node->nextbyte) + break; + if (node->leftnode == NODE || node->rightnode == NODE) + break; + assert(node->left); + assert(node->right); + /* Compare */ + if (! tree->leaf_equal(node->left, node->right)) + break; + /* Keep left, drop right leaf. */ + leaf = node->left; + /* Check in parent */ + parent = node->parent; + if (!parent) { + /* root of tree! */ + tree->root = leaf; + tree->childnode = LEAF; + } else if (parent->left == node) { + parent->left = leaf; + parent->leftnode = LEAF; + if (parent->right) { + parent->keymask = 0; + parent->keybits = 0; + } else { + parent->keymask |= (1 << node->bitnum); + } + } else if (parent->right == node) { + parent->right = leaf; + parent->rightnode = LEAF; + if (parent->left) { + parent->keymask = 0; + parent->keybits = 0; + } else { + parent->keymask |= (1 << node->bitnum); + parent->keybits |= (1 << node->bitnum); + } + } else { + /* internal tree error */ + assert(0); + } + free(node); + node = parent; + } + + /* Propagate keymasks up along singleton chains. */ + while (node) { + parent = node->parent; + if (!parent) + break; + /* Nix the mask for parents with two children. */ + if (node->keymask == 0) { + parent->keymask = 0; + parent->keybits = 0; + } else if (parent->left && parent->right) { + parent->keymask = 0; + parent->keybits = 0; + } else { + assert((parent->keymask & node->keymask) == 0); + parent->keymask |= node->keymask; + parent->keymask |= (1 << parent->bitnum); + parent->keybits |= node->keybits; + if (parent->right) + parent->keybits |= (1 << parent->bitnum); + } + node = parent; + } + + return 0; +} + +/* + * Prune internal nodes. + * + * Fully populated subtrees that end at the same leaf have already + * been collapsed. There are still internal nodes that have for both + * their left and right branches a sequence of singletons that make + * identical choices and end in identical leaves. The keymask and + * keybits collected in the nodes describe the choices made in these + * singleton chains. When they are identical for the left and right + * branch of a node, and the two leaves comare identical, the node in + * question can be removed. + * + * Note that nodes with the nextbyte tag set will not be removed by + * this to ensure tree integrity. Note as well that the structure of + * utf8 ensures that these nodes would not have been candidates for + * removal in any case. + */ +static void +prune(struct tree *tree) +{ + struct node *node; + struct node *left; + struct node *right; + struct node *parent; + void *leftleaf; + void *rightleaf; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int count; + + if (verbose > 0) + printf("Pruning %s_%x\n", tree->type, tree->maxage); + + count = 0; + if (tree->childnode == LEAF) + return; + if (!tree->root) + return; + + leftmask = rightmask = 0; + node = tree->root; + while (node) { + if (node->nextbyte) + goto advance; + if (node->leftnode == LEAF) + goto advance; + if (node->rightnode == LEAF) + goto advance; + if (!node->left) + goto advance; + if (!node->right) + goto advance; + left = node->left; + right = node->right; + if (left->keymask == 0) + goto advance; + if (right->keymask == 0) + goto advance; + if (left->keymask != right->keymask) + goto advance; + if (left->keybits != right->keybits) + goto advance; + leftleaf = NULL; + while (!leftleaf) { + assert(left->left || left->right); + if (left->leftnode == LEAF) + leftleaf = left->left; + else if (left->rightnode == LEAF) + leftleaf = left->right; + else if (left->left) + left = left->left; + else if (left->right) + left = left->right; + else + assert(0); + } + rightleaf = NULL; + while (!rightleaf) { + assert(right->left || right->right); + if (right->leftnode == LEAF) + rightleaf = right->left; + else if (right->rightnode == LEAF) + rightleaf = right->right; + else if (right->left) + right = right->left; + else if (right->right) + right = right->right; + else + assert(0); + } + if (! tree->leaf_equal(leftleaf, rightleaf)) + goto advance; + /* + * This node has identical singleton-only subtrees. + * Remove it. + */ + parent = node->parent; + left = node->left; + right = node->right; + if (parent->left == node) + parent->left = left; + else if (parent->right == node) + parent->right = left; + else + assert(0); + left->parent = parent; + left->keymask |= (1 << node->bitnum); + node->left = NULL; + while (node) { + bitmask = 1 << node->bitnum; + leftmask &= ~bitmask; + rightmask &= ~bitmask; + if (node->leftnode == NODE && node->left) { + left = node->left; + free(node); + count++; + node = left; + } else if (node->rightnode == NODE && node->right) { + right = node->right; + free(node); + count++; + node = right; + } else { + node = NULL; + } + } + /* Propagate keymasks up along singleton chains. */ + node = parent; + /* Force re-check */ + bitmask = 1 << node->bitnum; + leftmask &= ~bitmask; + rightmask &= ~bitmask; + for (;;) { + if (node->left && node->right) + break; + if (node->left) { + left = node->left; + node->keymask |= left->keymask; + node->keybits |= left->keybits; + } + if (node->right) { + right = node->right; + node->keymask |= right->keymask; + node->keybits |= right->keybits; + } + node->keymask |= (1 << node->bitnum); + node = node->parent; + /* Force re-check */ + bitmask = 1 << node->bitnum; + leftmask &= ~bitmask; + rightmask &= ~bitmask; + } + advance: + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0 && + node->leftnode == NODE && + node->left) { + leftmask |= bitmask; + node = node->left; + } else if ((rightmask & bitmask) == 0 && + node->rightnode == NODE && + node->right) { + rightmask |= bitmask; + node = node->right; + } else { + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + } + } + if (verbose > 0) + printf("Pruned %d nodes\n", count); +} + +/* + * Mark the nodes in the tree that lead to leaves that must be + * emitted. + */ +static void +mark_nodes(struct tree *tree) +{ + struct node *node; + struct node *n; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int marked; + + marked = 0; + if (verbose > 0) + printf("Marking %s_%x\n", tree->type, tree->maxage); + if (tree->childnode == LEAF) + goto done; + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + if (tree->leaf_mark(node->left)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->left) { + assert(node->leftnode == NODE); + node = node->left; + continue; + } + } + if ((rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + if (tree->leaf_mark(node->right)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->right) { + assert(node->rightnode==NODE); + node = node->right; + continue; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + } + + /* second pass: left siblings and singletons */ + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + if (tree->leaf_mark(node->left)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->left) { + assert(node->leftnode == NODE); + node = node->left; + if (!node->mark && node->parent->mark) { + marked++; + node->mark = 1; + } + continue; + } + } + if ((rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + if (tree->leaf_mark(node->right)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->right) { + assert(node->rightnode==NODE); + node = node->right; + if (!node->mark && node->parent->mark && + !node->parent->left) { + marked++; + node->mark = 1; + } + continue; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + } +done: + if (verbose > 0) + printf("Marked %d nodes\n", marked); +} + +/* + * Compute the index of each node and leaf, which is the offset in the + * emitted trie. These value must be pre-computed because relative + * offsets between nodes are used to navigate the tree. + */ +static int +index_nodes(struct tree *tree, int index) +{ + struct node *node; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int count; + int indent; + + /* Align to a cache line (or half a cache line?). */ + while (index % 64) + index++; + tree->index = index; + indent = 1; + count = 0; + + if (verbose > 0) + printf("Indexing %s_%x: %d", tree->type, tree->maxage, index); + if (tree->childnode == LEAF) { + index += tree->leaf_size(tree->root); + goto done; + } + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + if (!node->mark) + goto skip; + count++; + if (node->index != index) + node->index = index; + index += node->size; +skip: + while (node) { + bitmask = 1 << node->bitnum; + if (node->mark && (leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + *tree->leaf_index(tree, node->left) = + index; + index += tree->leaf_size(node->left); + count++; + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if (node->mark && (rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + *tree->leaf_index(tree, node->right) = index; + index += tree->leaf_size(node->right); + count++; + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + indent -= 1; + } + } +done: + /* Round up to a multiple of 16 */ + while (index % 16) + index++; + if (verbose > 0) + printf("Final index %d\n", index); + return index; +} + +/* + * Compute the size of nodes and leaves. We start by assuming that + * each node needs to store a three-byte offset. The indexes of the + * nodes are calculated based on that, and then this function is + * called to see if the sizes of some nodes can be reduced. This is + * repeated until no more changes are seen. + */ +static int +size_nodes(struct tree *tree) +{ + struct tree *next; + struct node *node; + struct node *right; + struct node *n; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + unsigned int pathbits; + unsigned int pathmask; + int changed; + int offset; + int size; + int indent; + + indent = 1; + changed = 0; + size = 0; + + if (verbose > 0) + printf("Sizing %s_%x", tree->type, tree->maxage); + if (tree->childnode == LEAF) + goto done; + + assert(tree->childnode == NODE); + pathbits = 0; + pathmask = 0; + node = tree->root; + leftmask = rightmask = 0; + while (node) { + if (!node->mark) + goto skip; + offset = 0; + if (!node->left || !node->right) { + size = 1; + } else { + if (node->rightnode == NODE) { + right = node->right; + next = tree->next; + while (!right->mark) { + assert(next); + n = next->root; + while (n->bitnum != node->bitnum) { + if (pathbits & (1<bitnum)) + n = n->right; + else + n = n->left; + } + n = n->right; + assert(right->bitnum == n->bitnum); + right = n; + next = next->next; + } + offset = right->index - node->index; + } else { + offset = *tree->leaf_index(tree, node->right); + offset -= node->index; + } + assert(offset >= 0); + assert(offset <= 0xffffff); + if (offset <= 0xff) { + size = 2; + } else if (offset <= 0xffff) { + size = 3; + } else { /* offset <= 0xffffff */ + size = 4; + } + } + if (node->size != size || node->offset != offset) { + node->size = size; + node->offset = offset; + changed++; + } +skip: + while (node) { + bitmask = 1 << node->bitnum; + pathmask |= bitmask; + if (node->mark && (leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if (node->mark && (rightmask & bitmask) == 0) { + rightmask |= bitmask; + pathbits |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + pathmask &= ~bitmask; + pathbits &= ~bitmask; + node = node->parent; + indent -= 1; + } + } +done: + if (verbose > 0) + printf("Found %d changes\n", changed); + return changed; +} + +/* + * Emit a trie for the given tree into the data array. + */ +static void +emit(struct tree *tree, unsigned char *data) +{ + struct node *node; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int offlen; + int offset; + int index; + int indent; + unsigned char byte; + + index = tree->index; + data += index; + indent = 1; + if (verbose > 0) + printf("Emitting %s_%x\n", tree->type, tree->maxage); + if (tree->childnode == LEAF) { + assert(tree->root); + tree->leaf_emit(tree->root, data); + return; + } + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + if (!node->mark) + goto skip; + assert(node->offset != -1); + assert(node->index == index); + + byte = 0; + if (node->nextbyte) + byte |= NEXTBYTE; + byte |= (node->bitnum & BITNUM); + if (node->left && node->right) { + if (node->leftnode == NODE) + byte |= LEFTNODE; + if (node->rightnode == NODE) + byte |= RIGHTNODE; + if (node->offset <= 0xff) + offlen = 1; + else if (node->offset <= 0xffff) + offlen = 2; + else + offlen = 3; + offset = node->offset; + byte |= offlen << OFFLEN_SHIFT; + *data++ = byte; + index++; + while (offlen--) { + *data++ = offset & 0xff; + index++; + offset >>= 8; + } + } else if (node->left) { + if (node->leftnode == NODE) + byte |= TRIENODE; + *data++ = byte; + index++; + } else if (node->right) { + byte |= RIGHTNODE; + if (node->rightnode == NODE) + byte |= TRIENODE; + *data++ = byte; + index++; + } else { + assert(0); + } +skip: + while (node) { + bitmask = 1 << node->bitnum; + if (node->mark && (leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + data = tree->leaf_emit(node->left, + data); + index += tree->leaf_size(node->left); + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if (node->mark && (rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + data = tree->leaf_emit(node->right, + data); + index += tree->leaf_size(node->right); + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + indent -= 1; + } + } +} + +/* ------------------------------------------------------------------ */ + +/* + * Unicode data. + * + * We need to keep track of the Canonical Combining Class, the Age, + * and decompositions for a code point. + * + * For the Age, we store the index into the ages table. Effectively + * this is a generation number that the table maps to a unicode + * version. + * + * The correction field is used to indicate that this entry is in the + * corrections array, which contains decompositions that were + * corrected in later revisions. The value of the correction field is + * the Unicode version in which the mapping was corrected. + */ +struct unicode_data { + unsigned int code; + int ccc; + int gen; + int correction; + unsigned int *utf32nfkdi; + unsigned int *utf32nfkdicf; + char *utf8nfkdi; + char *utf8nfkdicf; +}; + +struct unicode_data unicode_data[0x110000]; +struct unicode_data *corrections; +int corrections_count; + +struct tree *nfkdi_tree; +struct tree *nfkdicf_tree; + +struct tree *trees; +int trees_count; + +/* + * Check the corrections array to see if this entry was corrected at + * some point. + */ +static struct unicode_data * +corrections_lookup(struct unicode_data *u) +{ + int i; + + for (i = 0; i != corrections_count; i++) + if (u->code == corrections[i].code) + return &corrections[i]; + return u; +} + +static int +nfkdi_equal(void *l, void *r) +{ + struct unicode_data *left = l; + struct unicode_data *right = r; + + if (left->gen != right->gen) + return 0; + if (left->ccc != right->ccc) + return 0; + if (left->utf8nfkdi && right->utf8nfkdi && + strcmp(left->utf8nfkdi, right->utf8nfkdi) == 0) + return 1; + if (left->utf8nfkdi || right->utf8nfkdi) + return 0; + return 1; +} + +static int +nfkdicf_equal(void *l, void *r) +{ + struct unicode_data *left = l; + struct unicode_data *right = r; + + if (left->gen != right->gen) + return 0; + if (left->ccc != right->ccc) + return 0; + if (left->utf8nfkdicf && right->utf8nfkdicf && + strcmp(left->utf8nfkdicf, right->utf8nfkdicf) == 0) + return 1; + if (left->utf8nfkdicf && right->utf8nfkdicf) + return 0; + if (left->utf8nfkdicf || right->utf8nfkdicf) + return 0; + if (left->utf8nfkdi && right->utf8nfkdi && + strcmp(left->utf8nfkdi, right->utf8nfkdi) == 0) + return 1; + if (left->utf8nfkdi || right->utf8nfkdi) + return 0; + return 1; +} + +static void +nfkdi_print(void *l, int indent) +{ + struct unicode_data *leaf = l; + + printf("%*sleaf @ %p code %X ccc %d gen %d", indent, "", leaf, + leaf->code, leaf->ccc, leaf->gen); + if (leaf->utf8nfkdi) + printf(" nfkdi \"%s\"", (const char*)leaf->utf8nfkdi); + printf("\n"); +} + +static void +nfkdicf_print(void *l, int indent) +{ + struct unicode_data *leaf = l; + + printf("%*sleaf @ %p code %X ccc %d gen %d", indent, "", leaf, + leaf->code, leaf->ccc, leaf->gen); + if (leaf->utf8nfkdicf) + printf(" nfkdicf \"%s\"", (const char*)leaf->utf8nfkdicf); + else if (leaf->utf8nfkdi) + printf(" nfkdi \"%s\"", (const char*)leaf->utf8nfkdi); + printf("\n"); +} + +static int +nfkdi_mark(void *l) +{ + return 1; +} + +static int +nfkdicf_mark(void *l) +{ + struct unicode_data *leaf = l; + if (leaf->utf8nfkdicf) + return 1; + return 0; +} + +static int +correction_mark(void *l) +{ + struct unicode_data *leaf = l; + return leaf->correction; +} + +static int +nfkdi_size(void *l) +{ + struct unicode_data *leaf = l; + int size = 2; + if (leaf->utf8nfkdi) + size += strlen(leaf->utf8nfkdi) + 1; + return size; +} + +static int +nfkdicf_size(void *l) +{ + struct unicode_data *leaf = l; + int size = 2; + if (leaf->utf8nfkdicf) + size += strlen(leaf->utf8nfkdicf) + 1; + else if (leaf->utf8nfkdi) + size += strlen(leaf->utf8nfkdi) + 1; + return size; +} + +static int * +nfkdi_index(struct tree *tree, void *l) +{ + struct unicode_data *leaf = l; + return &tree->leafindex[leaf->code]; +} + +static int * +nfkdicf_index(struct tree *tree, void *l) +{ + struct unicode_data *leaf = l; + return &tree->leafindex[leaf->code]; +} + +static unsigned char * +nfkdi_emit(void *l, unsigned char *data) +{ + struct unicode_data *leaf = l; + unsigned char *s; + + *data++ = leaf->gen; + if (leaf->utf8nfkdi) { + *data++ = DECOMPOSE; + s = (unsigned char*)leaf->utf8nfkdi; + while ((*data++ = *s++) != 0) + ; + } else { + *data++ = leaf->ccc; + } + return data; +} + +static unsigned char * +nfkdicf_emit(void *l, unsigned char *data) +{ + struct unicode_data *leaf = l; + unsigned char *s; + + *data++ = leaf->gen; + if (leaf->utf8nfkdicf) { + *data++ = DECOMPOSE; + s = (unsigned char*)leaf->utf8nfkdicf; + while ((*data++ = *s++) != 0) + ; + } else if (leaf->utf8nfkdi) { + *data++ = DECOMPOSE; + s = (unsigned char*)leaf->utf8nfkdi; + while ((*data++ = *s++) != 0) + ; + } else { + *data++ = leaf->ccc; + } + return data; +} + +static void +utf8_create(struct unicode_data *data) +{ + char utf[18*4+1]; + char *u; + unsigned int *um; + int i; + + u = utf; + um = data->utf32nfkdi; + if (um) { + for (i = 0; um[i]; i++) + u += utf8key(um[i], u); + *u = '\0'; + data->utf8nfkdi = strdup((char*)utf); + } + u = utf; + um = data->utf32nfkdicf; + if (um) { + for (i = 0; um[i]; i++) + u += utf8key(um[i], u); + *u = '\0'; + if (!data->utf8nfkdi || strcmp(data->utf8nfkdi, (char*)utf)) + data->utf8nfkdicf = strdup((char*)utf); + } +} + +static void +utf8_init(void) +{ + unsigned int unichar; + int i; + + for (unichar = 0; unichar != 0x110000; unichar++) + utf8_create(&unicode_data[unichar]); + + for (i = 0; i != corrections_count; i++) + utf8_create(&corrections[i]); +} + +static void +trees_init(void) +{ + struct unicode_data *data; + unsigned int maxage; + unsigned int nextage; + int count; + int i; + int j; + + /* Count the number of different ages. */ + count = 0; + nextage = (unsigned int)-1; + do { + maxage = nextage; + nextage = 0; + for (i = 0; i <= corrections_count; i++) { + data = &corrections[i]; + if (nextage < data->correction && + data->correction < maxage) + nextage = data->correction; + } + count++; + } while (nextage); + + /* Two trees per age: nfkdi and nfkdicf */ + trees_count = count * 2; + trees = calloc(trees_count, sizeof(struct tree)); + + /* Assign ages to the trees. */ + count = trees_count; + nextage = (unsigned int)-1; + do { + maxage = nextage; + trees[--count].maxage = maxage; + trees[--count].maxage = maxage; + nextage = 0; + for (i = 0; i <= corrections_count; i++) { + data = &corrections[i]; + if (nextage < data->correction && + data->correction < maxage) + nextage = data->correction; + } + } while (nextage); + + /* The ages assigned above are off by one. */ + for (i = 0; i != trees_count; i++) { + j = 0; + while (ages[j] < trees[i].maxage) + j++; + trees[i].maxage = ages[j-1]; + } + + /* Set up the forwarding between trees. */ + trees[trees_count-2].next = &trees[trees_count-1]; + trees[trees_count-1].leaf_mark = nfkdi_mark; + trees[trees_count-2].leaf_mark = nfkdicf_mark; + for (i = 0; i != trees_count-2; i += 2) { + trees[i].next = &trees[trees_count-2]; + trees[i].leaf_mark = correction_mark; + trees[i+1].next = &trees[trees_count-1]; + trees[i+1].leaf_mark = correction_mark; + } + + /* Assign the callouts. */ + for (i = 0; i != trees_count; i += 2) { + trees[i].type = "nfkdicf"; + trees[i].leaf_equal = nfkdicf_equal; + trees[i].leaf_print = nfkdicf_print; + trees[i].leaf_size = nfkdicf_size; + trees[i].leaf_index = nfkdicf_index; + trees[i].leaf_emit = nfkdicf_emit; + + trees[i+1].type = "nfkdi"; + trees[i+1].leaf_equal = nfkdi_equal; + trees[i+1].leaf_print = nfkdi_print; + trees[i+1].leaf_size = nfkdi_size; + trees[i+1].leaf_index = nfkdi_index; + trees[i+1].leaf_emit = nfkdi_emit; + } + + /* Finish init. */ + for (i = 0; i != trees_count; i++) + trees[i].childnode = NODE; +} + +static void +trees_populate(void) +{ + struct unicode_data *data; + unsigned int unichar; + char keyval[4]; + int keylen; + int i; + + for (i = 0; i != trees_count; i++) { + if (verbose > 0) { + printf("Populating %s_%x\n", + trees[i].type, trees[i].maxage); + } + for (unichar = 0; unichar != 0x110000; unichar++) { + if (unicode_data[unichar].gen < 0) + continue; + keylen = utf8key(unichar, keyval); + data = corrections_lookup(&unicode_data[unichar]); + if (data->correction <= trees[i].maxage) + data = &unicode_data[unichar]; + insert(&trees[i], keyval, keylen, data); + } + } +} + +static void +trees_reduce(void) +{ + int i; + int size; + int changed; + + for (i = 0; i != trees_count; i++) + prune(&trees[i]); + for (i = 0; i != trees_count; i++) + mark_nodes(&trees[i]); + do { + size = 0; + for (i = 0; i != trees_count; i++) + size = index_nodes(&trees[i], size); + changed = 0; + for (i = 0; i != trees_count; i++) + changed += size_nodes(&trees[i]); + } while (changed); + + utf8data = calloc(size, 1); + utf8data_size = size; + for (i = 0; i != trees_count; i++) + emit(&trees[i], utf8data); + + if (verbose > 0) { + for (i = 0; i != trees_count; i++) { + printf("%s_%x idx %d\n", + trees[i].type, trees[i].maxage, trees[i].index); + } + } + + nfkdi = utf8data + trees[trees_count-1].index; + nfkdicf = utf8data + trees[trees_count-2].index; + + nfkdi_tree = &trees[trees_count-1]; + nfkdicf_tree = &trees[trees_count-2]; +} + +static void +verify(struct tree *tree) +{ + struct unicode_data *data; + utf8leaf_t *leaf; + unsigned int unichar; + char key[4]; + int report; + int nocf; + + if (verbose > 0) + printf("Verifying %s_%x\n", tree->type, tree->maxage); + nocf = strcmp(tree->type, "nfkdicf"); + + for (unichar = 0; unichar != 0x110000; unichar++) { + report = 0; + data = corrections_lookup(&unicode_data[unichar]); + if (data->correction <= tree->maxage) + data = &unicode_data[unichar]; + utf8key(unichar, key); + leaf = utf8lookup(tree, key); + if (!leaf) { + if (data->gen != -1) + report++; + if (unichar < 0xd800 || unichar > 0xdfff) + report++; + } else { + if (unichar >= 0xd800 && unichar <= 0xdfff) + report++; + if (data->gen == -1) + report++; + if (data->gen != LEAF_GEN(leaf)) + report++; + if (LEAF_CCC(leaf) == DECOMPOSE) { + if (nocf) { + if (!data->utf8nfkdi) { + report++; + } else if (strcmp(data->utf8nfkdi, + LEAF_STR(leaf))) { + report++; + } + } else { + if (!data->utf8nfkdicf && + !data->utf8nfkdi) { + report++; + } else if (data->utf8nfkdicf) { + if (strcmp(data->utf8nfkdicf, + LEAF_STR(leaf))) + report++; + } else if (strcmp(data->utf8nfkdi, + LEAF_STR(leaf))) { + report++; + } + } + } else if (data->ccc != LEAF_CCC(leaf)) { + report++; + } + } + if (report) { + printf("%X code %X gen %d ccc %d" + " nfdki -> \"%s\"", + unichar, data->code, data->gen, + data->ccc, + data->utf8nfkdi); + if (leaf) { + printf(" age %d ccc %d" + " nfdki -> \"%s\"\n", + LEAF_GEN(leaf), + LEAF_CCC(leaf), + LEAF_CCC(leaf) == DECOMPOSE ? + LEAF_STR(leaf) : ""); + } + printf("\n"); + } + } +} + +static void +trees_verify(void) +{ + int i; + + for (i = 0; i != trees_count; i++) + verify(&trees[i]); +} + +/* ------------------------------------------------------------------ */ + +static void +help(void) +{ + printf("Usage: %s [options]\n", argv0); + printf("\n"); + printf("This program creates an a data trie used for parsing and\n"); + printf("normalization of UTF-8 strings. The trie is derived from\n"); + printf("a set of input files from the Unicode character database\n"); + printf("found at: http://www.unicode.org/Public/UCD/latest/ucd/\n"); + printf("\n"); + printf("The generated tree supports two normalization forms:\n"); + printf("\n"); + printf("\tnfkdi:\n"); + printf("\t- Apply unicode normalization form NFKD.\n"); + printf("\t- Remove any Default_Ignorable_Code_Point.\n"); + printf("\n"); + printf("\tnfkdicf:\n"); + printf("\t- Apply unicode normalization form NFKD.\n"); + printf("\t- Remove any Default_Ignorable_Code_Point.\n"); + printf("\t- Apply a full casefold (C + F).\n"); + printf("\n"); + printf("These forms were chosen as being most useful when dealing\n"); + printf("with file names: NFKD catches most cases where characters\n"); + printf("should be considered equivalent. The ignorables are mostly\n"); + printf("invisible, making names hard to type.\n"); + printf("\n"); + printf("The options to specify the files to be used are listed\n"); + printf("below with their default values, which are the names used\n"); + printf("by version 7.0.0 of the Unicode Character Database.\n"); + printf("\n"); + printf("The input files:\n"); + printf("\t-a %s\n", AGE_NAME); + printf("\t-c %s\n", CCC_NAME); + printf("\t-p %s\n", PROP_NAME); + printf("\t-d %s\n", DATA_NAME); + printf("\t-f %s\n", FOLD_NAME); + printf("\t-n %s\n", NORM_NAME); + printf("\n"); + printf("Additionally, the generated tables are tested using:\n"); + printf("\t-t %s\n", TEST_NAME); + printf("\n"); + printf("Finally, the output file:\n"); + printf("\t-o %s\n", UTF8_NAME); + printf("\n"); +} + +static void +usage(void) +{ + help(); + exit(1); +} + +static void +open_fail(const char *name, int error) +{ + printf("Error %d opening %s: %s\n", error, name, strerror(error)); + exit(1); +} + +static void +file_fail(const char *filename) +{ + printf("Error parsing %s\n", filename); + exit(1); +} + +static void +line_fail(const char *filename, const char *line) +{ + printf("Error parsing %s:%s\n", filename, line); + exit(1); +} + +/* ------------------------------------------------------------------ */ + +static void +print_utf32(unsigned int *utf32str) +{ + int i; + for (i = 0; utf32str[i]; i++) + printf(" %X", utf32str[i]); +} + +static void +print_utf32nfkdi(unsigned int unichar) +{ + printf(" %X ->", unichar); + print_utf32(unicode_data[unichar].utf32nfkdi); + printf("\n"); +} + +static void +print_utf32nfkdicf(unsigned int unichar) +{ + printf(" %X ->", unichar); + print_utf32(unicode_data[unichar].utf32nfkdicf); + printf("\n"); +} + +/* ------------------------------------------------------------------ */ + +static void +age_init(void) +{ + FILE *file; + unsigned int first; + unsigned int last; + unsigned int unichar; + unsigned int major; + unsigned int minor; + unsigned int revision; + int gen; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", age_name); + + file = fopen(age_name, "r"); + if (!file) + open_fail(age_name, errno); + count = 0; + + gen = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "# Age=V%d_%d_%d", + &major, &minor, &revision); + if (ret == 3) { + ages_count++; + if (verbose > 1) + printf(" Age V%d_%d_%d\n", + major, minor, revision); + if (!age_valid(major, minor, revision)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "# Age=V%d_%d", &major, &minor); + if (ret == 2) { + ages_count++; + if (verbose > 1) + printf(" Age V%d_%d\n", major, minor); + if (!age_valid(major, minor, 0)) + line_fail(age_name, line); + continue; + } + } + + /* We must have found something above. */ + if (verbose > 1) + printf("%d age entries\n", ages_count); + if (ages_count == 0 || ages_count > MAXGEN) + file_fail(age_name); + + /* There is a 0 entry. */ + ages_count++; + ages = calloc(ages_count + 1, sizeof(*ages)); + /* And a guard entry. */ + ages[ages_count] = (unsigned int)-1; + + rewind(file); + count = 0; + gen = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "# Age=V%d_%d_%d", + &major, &minor, &revision); + if (ret == 3) { + ages[++gen] = + UNICODE_AGE(major, minor, revision); + if (verbose > 1) + printf(" Age V%d_%d_%d = gen %d\n", + major, minor, revision, gen); + if (!age_valid(major, minor, revision)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "# Age=V%d_%d", &major, &minor); + if (ret == 2) { + ages[++gen] = UNICODE_AGE(major, minor, 0); + if (verbose > 1) + printf(" Age V%d_%d = %d\n", + major, minor, gen); + if (!age_valid(major, minor, 0)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "%X..%X ; %d.%d #", + &first, &last, &major, &minor); + if (ret == 4) { + for (unichar = first; unichar <= last; unichar++) + unicode_data[unichar].gen = gen; + count += 1 + last - first; + if (verbose > 1) + printf(" %X..%X gen %d\n", first, last, gen); + if (!utf32valid(first) || !utf32valid(last)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "%X ; %d.%d #", &unichar, &major, &minor); + if (ret == 3) { + unicode_data[unichar].gen = gen; + count++; + if (verbose > 1) + printf(" %X gen %d\n", unichar, gen); + if (!utf32valid(unichar)) + line_fail(age_name, line); + continue; + } + } + unicode_maxage = ages[gen]; + fclose(file); + + /* Nix surrogate block */ + if (verbose > 1) + printf(" Removing surrogate block D800..DFFF\n"); + for (unichar = 0xd800; unichar <= 0xdfff; unichar++) + unicode_data[unichar].gen = -1; + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(age_name); +} + +static void +ccc_init(void) +{ + FILE *file; + unsigned int first; + unsigned int last; + unsigned int unichar; + unsigned int value; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", ccc_name); + + file = fopen(ccc_name, "r"); + if (!file) + open_fail(ccc_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X..%X ; %d #", &first, &last, &value); + if (ret == 3) { + for (unichar = first; unichar <= last; unichar++) { + unicode_data[unichar].ccc = value; + count++; + } + if (verbose > 1) + printf(" %X..%X ccc %d\n", first, last, value); + if (!utf32valid(first) || !utf32valid(last)) + line_fail(ccc_name, line); + continue; + } + ret = sscanf(line, "%X ; %d #", &unichar, &value); + if (ret == 2) { + unicode_data[unichar].ccc = value; + count++; + if (verbose > 1) + printf(" %X ccc %d\n", unichar, value); + if (!utf32valid(unichar)) + line_fail(ccc_name, line); + continue; + } + } + fclose(file); + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(ccc_name); +} + +static void +nfkdi_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + char *s; + unsigned int *um; + int count; + int i; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", data_name); + file = fopen(data_name, "r"); + if (!file) + open_fail(data_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X;%*[^;];%*[^;];%*[^;];%*[^;];%[^;];", + &unichar, buf0); + if (ret != 2) + continue; + if (!utf32valid(unichar)) + line_fail(data_name, line); + + s = buf0; + /* skip over */ + if (*s == '<') + while (*s++ != ' ') + ; + /* decode the decomposition into UTF-32 */ + i = 0; + while (*s) { + mapping[i] = strtoul(s, &s, 16); + if (!utf32valid(mapping[i])) + line_fail(data_name, line); + i++; + } + mapping[i++] = 0; + + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdi = um; + + if (verbose > 1) + print_utf32nfkdi(unichar); + count++; + } + fclose(file); + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(data_name); +} + +static void +nfkdicf_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + char status; + char *s; + unsigned int *um; + int i; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", fold_name); + file = fopen(fold_name, "r"); + if (!file) + open_fail(fold_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X; %c; %[^;];", &unichar, &status, buf0); + if (ret != 3) + continue; + if (!utf32valid(unichar)) + line_fail(fold_name, line); + /* Use the C+F casefold. */ + if (status != 'C' && status != 'F') + continue; + s = buf0; + if (*s == '<') + while (*s++ != ' ') + ; + i = 0; + while (*s) { + mapping[i] = strtoul(s, &s, 16); + if (!utf32valid(mapping[i])) + line_fail(fold_name, line); + i++; + } + mapping[i++] = 0; + + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + + if (verbose > 1) + print_utf32nfkdicf(unichar); + count++; + } + fclose(file); + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(fold_name); +} + +static void +ignore_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int first; + unsigned int last; + unsigned int *um; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", prop_name); + file = fopen(prop_name, "r"); + if (!file) + open_fail(prop_name, errno); + assert(file); + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X..%X ; %s # ", &first, &last, buf0); + if (ret == 3) { + if (strcmp(buf0, "Default_Ignorable_Code_Point")) + continue; + if (!utf32valid(first) || !utf32valid(last)) + line_fail(prop_name, line); + for (unichar = first; unichar <= last; unichar++) { + free(unicode_data[unichar].utf32nfkdi); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdi = um; + free(unicode_data[unichar].utf32nfkdicf); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdicf = um; + count++; + } + if (verbose > 1) + printf(" %X..%X Default_Ignorable_Code_Point\n", + first, last); + continue; + } + ret = sscanf(line, "%X ; %s # ", &unichar, buf0); + if (ret == 2) { + if (strcmp(buf0, "Default_Ignorable_Code_Point")) + continue; + if (!utf32valid(unichar)) + line_fail(prop_name, line); + free(unicode_data[unichar].utf32nfkdi); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdi = um; + free(unicode_data[unichar].utf32nfkdicf); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdicf = um; + if (verbose > 1) + printf(" %X Default_Ignorable_Code_Point\n", + unichar); + count++; + continue; + } + } + fclose(file); + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(prop_name); +} + +static void +corrections_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int major; + unsigned int minor; + unsigned int revision; + unsigned int age; + unsigned int *um; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + char *s; + int i; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", norm_name); + file = fopen(norm_name, "r"); + if (!file) + open_fail(norm_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X;%[^;];%[^;];%d.%d.%d #", + &unichar, buf0, buf1, + &major, &minor, &revision); + if (ret != 6) + continue; + if (!utf32valid(unichar) || !age_valid(major, minor, revision)) + line_fail(norm_name, line); + count++; + } + corrections = calloc(count, sizeof(struct unicode_data)); + corrections_count = count; + rewind(file); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X;%[^;];%[^;];%d.%d.%d #", + &unichar, buf0, buf1, + &major, &minor, &revision); + if (ret != 6) + continue; + if (!utf32valid(unichar) || !age_valid(major, minor, revision)) + line_fail(norm_name, line); + corrections[count] = unicode_data[unichar]; + assert(corrections[count].code == unichar); + age = UNICODE_AGE(major, minor, revision); + corrections[count].correction = age; + + i = 0; + s = buf0; + while (*s) { + mapping[i] = strtoul(s, &s, 16); + if (!utf32valid(mapping[i])) + line_fail(norm_name, line); + i++; + } + mapping[i++] = 0; + + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + corrections[count].utf32nfkdi = um; + + if (verbose > 1) + printf(" %X -> %s -> %s V%d_%d_%d\n", + unichar, buf0, buf1, major, minor, revision); + count++; + } + fclose(file); + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(norm_name); +} + +/* ------------------------------------------------------------------ */ + +/* + * Hangul decomposition (algorithm from Section 3.12 of Unicode 6.3.0) + * + * AC00;;Lo;0;L;;;;;N;;;;; + * D7A3;;Lo;0;L;;;;;N;;;;; + * + * SBase = 0xAC00 + * LBase = 0x1100 + * VBase = 0x1161 + * TBase = 0x11A7 + * LCount = 19 + * VCount = 21 + * TCount = 28 + * NCount = 588 (VCount * TCount) + * SCount = 11172 (LCount * NCount) + * + * Decomposition: + * SIndex = s - SBase + * + * LV (Canonical/Full) + * LIndex = SIndex / NCount + * VIndex = (Sindex % NCount) / TCount + * LPart = LBase + LIndex + * VPart = VBase + VIndex + * + * LVT (Canonical) + * LVIndex = (SIndex / TCount) * TCount + * TIndex = (Sindex % TCount + * LVPart = LBase + LVIndex + * TPart = TBase + TIndex + * + * LVT (Full) + * LIndex = SIndex / NCount + * VIndex = (Sindex % NCount) / TCount + * TIndex = (Sindex % TCount + * LPart = LBase + LIndex + * VPart = VBase + VIndex + * if (TIndex == 0) { + * d = + * } else { + * TPart = TBase + TIndex + * d = + * } + * + */ + +static void +hangul_decompose(void) +{ + unsigned int sb = 0xAC00; + unsigned int lb = 0x1100; + unsigned int vb = 0x1161; + unsigned int tb = 0x11a7; + /* unsigned int lc = 19; */ + unsigned int vc = 21; + unsigned int tc = 28; + unsigned int nc = (vc * tc); + /* unsigned int sc = (lc * nc); */ + unsigned int unichar; + unsigned int mapping[4]; + unsigned int *um; + int count; + int i; + + if (verbose > 0) + printf("Decomposing hangul\n"); + /* Hangul */ + count = 0; + for (unichar = 0xAC00; unichar <= 0xD7A3; unichar++) { + unsigned int si = unichar - sb; + unsigned int li = si / nc; + unsigned int vi = (si % nc) / tc; + unsigned int ti = si % tc; + + i = 0; + mapping[i++] = lb + li; + mapping[i++] = vb + vi; + if (ti) + mapping[i++] = tb + ti; + mapping[i++] = 0; + + assert(!unicode_data[unichar].utf32nfkdi); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdi = um; + + assert(!unicode_data[unichar].utf32nfkdicf); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + + if (verbose > 1) + print_utf32nfkdi(unichar); + + count++; + } + if (verbose > 0) + printf("Created %d entries\n", count); +} + +static void +nfkdi_decompose(void) +{ + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + unsigned int *um; + unsigned int *dc; + int count; + int i; + int j; + int ret; + + if (verbose > 0) + printf("Decomposing nfkdi\n"); + + count = 0; + for (unichar = 0; unichar != 0x110000; unichar++) { + if (!unicode_data[unichar].utf32nfkdi) + continue; + for (;;) { + ret = 1; + i = 0; + um = unicode_data[unichar].utf32nfkdi; + while (*um) { + dc = unicode_data[*um].utf32nfkdi; + if (dc) { + for (j = 0; dc[j]; j++) + mapping[i++] = dc[j]; + ret = 0; + } else { + mapping[i++] = *um; + } + um++; + } + mapping[i++] = 0; + if (ret) + break; + free(unicode_data[unichar].utf32nfkdi); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdi = um; + } + /* Add this decomposition to nfkdicf if there is no entry. */ + if (!unicode_data[unichar].utf32nfkdicf) { + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + } + if (verbose > 1) + print_utf32nfkdi(unichar); + count++; + } + if (verbose > 0) + printf("Processed %d entries\n", count); +} + +static void +nfkdicf_decompose(void) +{ + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + unsigned int *um; + unsigned int *dc; + int count; + int i; + int j; + int ret; + + if (verbose > 0) + printf("Decomposing nfkdicf\n"); + count = 0; + for (unichar = 0; unichar != 0x110000; unichar++) { + if (!unicode_data[unichar].utf32nfkdicf) + continue; + for (;;) { + ret = 1; + i = 0; + um = unicode_data[unichar].utf32nfkdicf; + while (*um) { + dc = unicode_data[*um].utf32nfkdicf; + if (dc) { + for (j = 0; dc[j]; j++) + mapping[i++] = dc[j]; + ret = 0; + } else { + mapping[i++] = *um; + } + um++; + } + mapping[i++] = 0; + if (ret) + break; + free(unicode_data[unichar].utf32nfkdicf); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + } + if (verbose > 1) + print_utf32nfkdicf(unichar); + count++; + } + if (verbose > 0) + printf("Processed %d entries\n", count); +} + +/* ------------------------------------------------------------------ */ + +int utf8agemax(struct tree *, const char *); +int utf8nagemax(struct tree *, const char *, size_t); +int utf8agemin(struct tree *, const char *); +int utf8nagemin(struct tree *, const char *, size_t); +ssize_t utf8len(struct tree *, const char *); +ssize_t utf8nlen(struct tree *, const char *, size_t); +struct utf8cursor; +int utf8cursor(struct utf8cursor *, struct tree *, const char *); +int utf8ncursor(struct utf8cursor *, struct tree *, const char *, size_t); +int utf8byte(struct utf8cursor *); + +/* + * Use trie to scan s, touching at most len bytes. + * Returns the leaf if one exists, NULL otherwise. + * + * A non-NULL return guarantees that the UTF-8 sequence starting at s + * is well-formed and corresponds to a known unicode code point. The + * shorthand for this will be "is valid UTF-8 unicode". + */ +static utf8leaf_t * +utf8nlookup(struct tree *tree, const char *s, size_t len) +{ + utf8trie_t *trie = utf8data + tree->index; + int offlen; + int offset; + int mask; + int node; + + if (!tree) + return NULL; + if (len == 0) + return NULL; + node = 1; + while (node) { + offlen = (*trie & OFFLEN) >> OFFLEN_SHIFT; + if (*trie & NEXTBYTE) { + if (--len == 0) + return NULL; + s++; + } + mask = 1 << (*trie & BITNUM); + if (*s & mask) { + /* Right leg */ + if (offlen) { + /* Right node at offset of trie */ + node = (*trie & RIGHTNODE); + offset = trie[offlen]; + while (--offlen) { + offset <<= 8; + offset |= trie[offlen]; + } + trie += offset; + } else if (*trie & RIGHTPATH) { + /* Right node after this node */ + node = (*trie & TRIENODE); + trie++; + } else { + /* No right node. */ + node = 0; + trie = NULL; + } + } else { + /* Left leg */ + if (offlen) { + /* Left node after this node. */ + node = (*trie & LEFTNODE); + trie += offlen + 1; + } else if (*trie & RIGHTPATH) { + /* No left node. */ + node = 0; + trie = NULL; + } else { + /* Left node after this node */ + node = (*trie & TRIENODE); + trie++; + } + } + } + return trie; +} + +/* + * Use trie to scan s. + * Returns the leaf if one exists, NULL otherwise. + * + * Forwards to trie_nlookup(). + */ +static utf8leaf_t * +utf8lookup(struct tree *tree, const char *s) +{ + return utf8nlookup(tree, s, (size_t)-1); +} + +/* + * Return the number of bytes used by the current UTF-8 sequence. + * Assumes the input points to the first byte of a valid UTF-8 + * sequence. + */ +static inline int +utf8clen(const char *s) +{ + unsigned char c = *s; + return 1 + (c >= 0xC0) + (c >= 0xE0) + (c >= 0xF0); +} + +/* + * Maximum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if only non-assigned code points are used. + */ +int +utf8agemax(struct tree *tree, const char *s) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!tree) + return -1; + while (*s) { + if (!(leaf = utf8lookup(tree, s))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age > age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} + +/* + * Minimum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if non-assigned code points are used. + */ +int +utf8agemin(struct tree *tree, const char *s) +{ + utf8leaf_t *leaf; + int age = tree->maxage; + int leaf_age; + + if (!tree) + return -1; + while (*s) { + if (!(leaf = utf8lookup(tree, s))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age < age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemax(struct tree *tree, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!tree) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(tree, s, len))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age > age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemin(struct tree *tree, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int leaf_age; + int age = tree->maxage; + + if (!tree) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(tree, s, len))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age < age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} + +/* + * Length of the normalization of s. + * Return -1 if s is not valid UTF-8 unicode. + * + * A string of Default_Ignorable_Code_Point has length 0. + */ +ssize_t +utf8len(struct tree *tree, const char *s) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!tree) + return -1; + while (*s) { + if (!(leaf = utf8lookup(tree, s))) + return -1; + if (ages[LEAF_GEN(leaf)] > tree->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + s += utf8clen(s); + } + return ret; +} + +/* + * Length of the normalization of s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +ssize_t +utf8nlen(struct tree *tree, const char *s, size_t len) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!tree) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(tree, s, len))) + return -1; + if (ages[LEAF_GEN(leaf)] > tree->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + len -= utf8clen(s); + s += utf8clen(s); + } + return ret; +} + +/* + * Cursor structure used by the normalizer. + */ +struct utf8cursor { + struct tree *tree; + const char *s; + const char *p; + const char *ss; + const char *sp; + unsigned int len; + unsigned int slen; + short int ccc; + short int nccc; + unsigned int unichar; +}; + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * s : string. + * len : length of s. + * u8c : pointer to cursor. + * trie : utf8trie_t to use for normalization. + * + * Returns -1 on error, 0 on success. + */ +int +utf8ncursor( + struct utf8cursor *u8c, + struct tree *tree, + const char *s, + size_t len) +{ + if (!tree) + return -1; + if (!s) + return -1; + u8c->tree = tree; + u8c->s = s; + u8c->p = NULL; + u8c->ss = NULL; + u8c->sp = NULL; + u8c->len = len; + u8c->slen = 0; + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + u8c->unichar = 0; + /* Check we didn't clobber the maximum length. */ + if (u8c->len != len) + return -1; + /* The first byte of s may not be an utf8 continuation. */ + if (len > 0 && (*s & 0xC0) == 0x80) + return -1; + return 0; +} + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * s : NUL-terminated string. + * u8c : pointer to cursor. + * trie : utf8trie_t to use for normalization. + * + * Returns -1 on error, 0 on success. + */ +int +utf8cursor( + struct utf8cursor *u8c, + struct tree *tree, + const char *s) +{ + return utf8ncursor(u8c, tree, s, (unsigned int)-1); +} + +/* + * Get one byte from the normalized form of the string described by u8c. + * + * Returns the byte cast to an unsigned char on succes, and -1 on failure. + * + * The cursor keeps track of the location in the string in u8c->s. + * When a character is decomposed, the current location is stored in + * u8c->p, and u8c->s is set to the start of the decomposition. Note + * that bytes from a decomposition do not count against u8c->len. + * + * Characters are emitted if they match the current CCC in u8c->ccc. + * Hitting end-of-string while u8c->ccc == STOPPER means we're done, + * and the function returns 0 in that case. + * + * Sorting by CCC is done by repeatedly scanning the string. The + * values of u8c->s and u8c->p are stored in u8c->ss and u8c->sp at + * the start of the scan. The first pass finds the lowest CCC to be + * emitted and stores it in u8c->nccc, the second pass emits the + * characters with this CCC and finds the next lowest CCC. This limits + * the number of passes to 1 + the number of different CCCs in the + * sequence being scanned. + * + * Therefore: + * u8c->p != NULL -> a decomposition is being scanned. + * u8c->ss != NULL -> this is a repeating scan. + * u8c->ccc == -1 -> this is the first scan of a repeating scan. + */ +int +utf8byte(struct utf8cursor *u8c) +{ + utf8leaf_t *leaf; + int ccc; + + for (;;) { + /* Check for the end of a decomposed character. */ + if (u8c->p && *u8c->s == '\0') { + u8c->s = u8c->p; + u8c->p = NULL; + } + + /* Check for end-of-string. */ + if (!u8c->p && (u8c->len == 0 || *u8c->s == '\0')) { + /* There is no next byte. */ + if (u8c->ccc == STOPPER) + return 0; + /* End-of-string during a scan counts as a stopper. */ + ccc = STOPPER; + goto ccc_mismatch; + } else if ((*u8c->s & 0xC0) == 0x80) { + /* This is a continuation of the current character. */ + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Look up the data for the current character. */ + if (u8c->p) + leaf = utf8lookup(u8c->tree, u8c->s); + else + leaf = utf8nlookup(u8c->tree, u8c->s, u8c->len); + + /* No leaf found implies that the input is a binary blob. */ + if (!leaf) + return -1; + + /* Characters that are too new have CCC 0. */ + if (ages[LEAF_GEN(leaf)] > u8c->tree->maxage) { + ccc = STOPPER; + } else if ((ccc = LEAF_CCC(leaf)) == DECOMPOSE) { + u8c->len -= utf8clen(u8c->s); + u8c->p = u8c->s + utf8clen(u8c->s); + u8c->s = LEAF_STR(leaf); + /* Empty decomposition implies CCC 0. */ + if (*u8c->s == '\0') { + if (u8c->ccc == STOPPER) + continue; + ccc = STOPPER; + goto ccc_mismatch; + } + leaf = utf8lookup(u8c->tree, u8c->s); + ccc = LEAF_CCC(leaf); + } + u8c->unichar = utf8code(u8c->s); + + /* + * If this is not a stopper, then see if it updates + * the next canonical class to be emitted. + */ + if (ccc != STOPPER && u8c->ccc < ccc && ccc < u8c->nccc) + u8c->nccc = ccc; + + /* + * Return the current byte if this is the current + * combining class. + */ + if (ccc == u8c->ccc) { + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Current combining class mismatch. */ + ccc_mismatch: + if (u8c->nccc == STOPPER) { + /* + * Scan forward for the first canonical class + * to be emitted. Save the position from + * which to restart. + */ + assert(u8c->ccc == STOPPER); + u8c->ccc = MINCCC - 1; + u8c->nccc = ccc; + u8c->sp = u8c->p; + u8c->ss = u8c->s; + u8c->slen = u8c->len; + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (ccc != STOPPER) { + /* Not a stopper, and not the ccc we're emitting. */ + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (u8c->nccc != MAXCCC + 1) { + /* At a stopper, restart for next ccc. */ + u8c->ccc = u8c->nccc; + u8c->nccc = MAXCCC + 1; + u8c->s = u8c->ss; + u8c->p = u8c->sp; + u8c->len = u8c->slen; + } else { + /* All done, proceed from here. */ + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + u8c->sp = NULL; + u8c->ss = NULL; + u8c->slen = 0; + } + } +} + +/* ------------------------------------------------------------------ */ + +static int +normalize_line(struct tree *tree) +{ + char *s; + char *t; + int c; + struct utf8cursor u8c; + + /* First test: null-terminated string. */ + s = buf2; + t = buf3; + if (utf8cursor(&u8c, tree, s)) + return -1; + while ((c = utf8byte(&u8c)) > 0) + if (c != (unsigned char)*t++) + return -1; + if (c < 0) + return -1; + if (*t != 0) + return -1; + + /* Second test: length-limited string. */ + s = buf2; + /* Replace NUL with a value that will cause an error if seen. */ + s[strlen(s) + 1] = -1; + t = buf3; + if (utf8cursor(&u8c, tree, s)) + return -1; + while ((c = utf8byte(&u8c)) > 0) + if (c != (unsigned char)*t++) + return -1; + if (c < 0) + return -1; + if (*t != 0) + return -1; + + return 0; +} + +static void +normalization_test(void) +{ + FILE *file; + unsigned int unichar; + struct unicode_data *data; + char *s; + char *t; + int ret; + int ignorables; + int tests = 0; + int failures = 0; + + if (verbose > 0) + printf("Parsing %s\n", test_name); + /* Step one, read data from file. */ + file = fopen(test_name, "r"); + if (!file) + open_fail(test_name, errno); + + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%[^;];%*[^;];%*[^;];%*[^;];%[^;];", + buf0, buf1); + if (ret != 2 || *line == '#') + continue; + s = buf0; + t = buf2; + while (*s) { + unichar = strtoul(s, &s, 16); + t += utf8key(unichar, t); + } + *t = '\0'; + + ignorables = 0; + s = buf1; + t = buf3; + while (*s) { + unichar = strtoul(s, &s, 16); + data = &unicode_data[unichar]; + if (data->utf8nfkdi && !*data->utf8nfkdi) + ignorables = 1; + else + t += utf8key(unichar, t); + } + *t = '\0'; + + tests++; + if (normalize_line(nfkdi_tree) < 0) { + printf("\nline %s -> %s", buf0, buf1); + if (ignorables) + printf(" (ignorables removed)"); + printf(" failure\n"); + failures++; + } + } + fclose(file); + if (verbose > 0) + printf("Ran %d tests with %d failures\n", tests, failures); + if (failures) + file_fail(test_name); +} + +/* ------------------------------------------------------------------ */ + +static void +write_file(void) +{ + FILE *file; + int i; + int j; + int t; + int gen; + + if (verbose > 0) + printf("Writing %s\n", utf8_name); + file = fopen(utf8_name, "w"); + if (!file) + open_fail(utf8_name, errno); + + fprintf(file, "/* This file is generated code, do not edit. */\n"); + fprintf(file, "#ifndef __INCLUDED_FROM_UTF8NORM_C__\n"); + fprintf(file, "#error Only xfs_utf8.c may include this file.\n"); + fprintf(file, "#endif\n"); + fprintf(file, "\n"); + fprintf(file, "const unsigned int utf8version = %#x;\n", + unicode_maxage); + fprintf(file, "\n"); + fprintf(file, "static const unsigned int utf8agetab[] = {\n"); + for (i = 0; i != ages_count; i++) + fprintf(file, "\t%#x%s\n", ages[i], + ages[i] == unicode_maxage ? "" : ","); + fprintf(file, "};\n"); + fprintf(file, "\n"); + fprintf(file, "static const struct utf8data utf8nfkdicfdata[] = {\n"); + t = 0; + for (gen = 0; gen < ages_count; gen++) { + fprintf(file, "\t{ %#x, %d }%s\n", + ages[gen], trees[t].index, + ages[gen] == unicode_maxage ? "" : ","); + if (trees[t].maxage == ages[gen]) + t += 2; + } + fprintf(file, "};\n"); + fprintf(file, "\n"); + fprintf(file, "static const struct utf8data utf8nfkdidata[] = {\n"); + t = 1; + for (gen = 0; gen < ages_count; gen++) { + fprintf(file, "\t{ %#x, %d }%s\n", + ages[gen], trees[t].index, + ages[gen] == unicode_maxage ? "" : ","); + if (trees[t].maxage == ages[gen]) + t += 2; + } + fprintf(file, "};\n"); + fprintf(file, "\n"); + fprintf(file, "static const unsigned char utf8data[%zd] = {\n", + utf8data_size); + t = 0; + for (i = 0; i != utf8data_size; i += 16) { + if (i == trees[t].index) { + fprintf(file, "\t/* %s_%x */\n", + trees[t].type, trees[t].maxage); + if (t < trees_count-1) + t++; + } + fprintf(file, "\t"); + for (j = i; j != i + 16; j++) + fprintf(file, "0x%.2x%s", utf8data[j], + (j < utf8data_size -1 ? "," : "")); + fprintf(file, "\n"); + } + fprintf(file, "};\n"); + fclose(file); +} + +/* ------------------------------------------------------------------ */ + +int +main(int argc, char *argv[]) +{ + unsigned int unichar; + int opt; + + argv0 = argv[0]; + + while ((opt = getopt(argc, argv, "a:c:d:f:hn:o:p:t:v")) != -1) { + switch (opt) { + case 'a': + age_name = optarg; + break; + case 'c': + ccc_name = optarg; + break; + case 'd': + data_name = optarg; + break; + case 'f': + fold_name = optarg; + break; + case 'n': + norm_name = optarg; + break; + case 'o': + utf8_name = optarg; + break; + case 'p': + prop_name = optarg; + break; + case 't': + test_name = optarg; + break; + case 'v': + verbose++; + break; + case 'h': + help(); + exit(0); + default: + usage(); + } + } + + if (verbose > 1) + help(); + for (unichar = 0; unichar != 0x110000; unichar++) + unicode_data[unichar].code = unichar; + age_init(); + ccc_init(); + nfkdi_init(); + nfkdicf_init(); + ignore_init(); + corrections_init(); + hangul_decompose(); + nfkdi_decompose(); + nfkdicf_decompose(); + utf8_init(); + trees_init(); + trees_populate(); + trees_reduce(); + trees_verify(); + /* Prevent "unused function" warning. */ + (void)lookup(nfkdi_tree, " "); + if (verbose > 2) + tree_walk(nfkdi_tree); + if (verbose > 2) + tree_walk(nfkdicf_tree); + normalization_test(); + write_file(); + + return 0; +} -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 16:00:10 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 41F407F9C for ; Thu, 11 Sep 2014 16:00:10 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id 0AC6E8F8037; Thu, 11 Sep 2014 14:00:10 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id CD89C4266DC; Thu, 11 Sep 2014 16:00:09 -0500 (CDT) Date: Thu, 11 Sep 2014 16:00:09 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 08/13] libxfs: add xfs_nameops for utf8 and utf8+casefold. Message-ID: <20140911210009.GQ13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber The xfs_utf8_nameops use the nfkdi normalization when comparing filenames, and are installed if the utf8bit is set in the super block. The xfs_utf8_ci_nameops use the nfkdicf normalization when comparing filenames, and are installed if both the utf8bit and the borgbit are set in the superblock. Normalized filenames are not stored on disk. Normalization will fail if a filename is not valid UTF-8, in which case the filename is treated as an opaque blob. Changes: Type conversion to "(const char *)" added to utf8ncursor() and utf8nlen() calls. Signed-off-by: Olaf Weber --- Makefile | 2 +- include/libxfs.h | 1 + include/xfs_utf8.h | 25 ++++++ libxfs/Makefile | 4 +- libxfs/xfs_dir2.c | 15 +++- libxfs/xfs_utf8.c | 238 +++++++++++++++++++++++++++++++++++++++++++++++++++++ support/Makefile | 24 ++++++ 7 files changed, 303 insertions(+), 6 deletions(-) create mode 100644 include/xfs_utf8.h create mode 100644 libxfs/xfs_utf8.c create mode 100644 support/Makefile diff --git a/Makefile b/Makefile index f56aebd..c442da6 100644 --- a/Makefile +++ b/Makefile @@ -40,7 +40,7 @@ LDIRDIRT = $(SRCDIR) LDIRT += $(SRCTAR) endif -LIB_SUBDIRS = libxfs libxlog libxcmd libhandle libdisk +LIB_SUBDIRS = support libxfs libxlog libxcmd libhandle libdisk TOOL_SUBDIRS = copy db estimate fsck fsr growfs io logprint mkfs quota \ mdrestore repair rtcp m4 man doc po debian diff --git a/include/libxfs.h b/include/libxfs.h index 45a924f..99cb3d9 100644 --- a/include/libxfs.h +++ b/include/libxfs.h @@ -59,6 +59,7 @@ #include #include #include +#include #ifndef ARRAY_SIZE diff --git a/include/xfs_utf8.h b/include/xfs_utf8.h new file mode 100644 index 0000000..97b6a91 --- /dev/null +++ b/include/xfs_utf8.h @@ -0,0 +1,25 @@ +/* + * Copyright (c) 2014 SGI. + * 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_UTF8_H +#define XFS_UTF8_H + +extern struct xfs_nameops xfs_utf8_nameops; +extern struct xfs_nameops xfs_utf8_ci_nameops; + +#endif /* XFS_UTF8_H */ diff --git a/libxfs/Makefile b/libxfs/Makefile index ae15a5d..d836027 100644 --- a/libxfs/Makefile +++ b/libxfs/Makefile @@ -14,6 +14,7 @@ HFILES = xfs.h init.h xfs_dir2_priv.h crc32defs.h crc32table.h CFILES = cache.c \ crc32.c \ init.c kmem.c logitem.c radix-tree.c rdwr.c trans.c util.c \ + utf8norm.c \ xfs_alloc.c \ xfs_alloc_btree.c \ xfs_attr.c \ @@ -38,7 +39,8 @@ CFILES = cache.c \ xfs_rtbitmap.c \ xfs_sb.c \ xfs_symlink_remote.c \ - xfs_trans_resv.c + xfs_trans_resv.c \ + xfs_utf8.c CFILES += $(PKG_PLATFORM).c PCFILES = darwin.c freebsd.c irix.c linux.c diff --git a/libxfs/xfs_dir2.c b/libxfs/xfs_dir2.c index 1893931..6872844 100644 --- a/libxfs/xfs_dir2.c +++ b/libxfs/xfs_dir2.c @@ -123,10 +123,17 @@ xfs_dir_mount( (uint)sizeof(xfs_da_node_entry_t); mp->m_dir_magicpct = (mp->m_dirblksize * 37) / 100; - if (xfs_sb_version_hasasciici(&mp->m_sb)) - mp->m_dirnameops = &xfs_ascii_ci_nameops; - else - mp->m_dirnameops = &xfs_default_nameops; + if (xfs_sb_version_hasutf8(&mp->m_sb)) { + if (xfs_sb_version_hasasciici(&mp->m_sb)) + mp->m_dirnameops = &xfs_utf8_ci_nameops; + else + mp->m_dirnameops = &xfs_utf8_nameops; + } else { + if (xfs_sb_version_hasasciici(&mp->m_sb)) + mp->m_dirnameops = &xfs_ascii_ci_nameops; + else + mp->m_dirnameops = &xfs_default_nameops; + } } /* diff --git a/libxfs/xfs_utf8.c b/libxfs/xfs_utf8.c new file mode 100644 index 0000000..f5cc231 --- /dev/null +++ b/libxfs/xfs_utf8.c @@ -0,0 +1,238 @@ +/* + * Copyright (c) 2014 SGI. + * 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 "xfs.h" +#include "xfs_fs.h" +#include "xfs_types.h" +#include "xfs_bit.h" +#include "xfs_inum.h" +#include "xfs_sb.h" +#include "xfs_ag.h" +#include "xfs_dir2.h" +#include "xfs_da_btree.h" +#include "xfs_bmap_btree.h" +#include "xfs_alloc_btree.h" +#include "xfs_dinode.h" +#include "xfs_inode_fork.h" +#include "xfs_bmap.h" +#include "xfs_dir2.h" +#include "xfs_trace.h" +#include "xfs_utf8.h" +#include "utf8norm.h" + +/* + * xfs nameops using nfkdi + */ + +static xfs_dahash_t +xfs_utf8_hashname( + const unsigned char *name, + int len) +{ + utf8data_t nfkdi; + struct utf8cursor u8c; + xfs_dahash_t hash; + int val; + + nfkdi = utf8nfkdi(utf8version); + hash = 0; + if (utf8ncursor(&u8c, nfkdi, (const char *)name, len) < 0) + goto blob; + while ((val = utf8byte(&u8c)) > 0) + hash = val ^ rol32(hash, 7); + /* In case of error treat the name as a binary blob. */ + if (val == 0) + return hash; +blob: + return xfs_da_hashname(name, len); +} + +static int +xfs_utf8_normhash( + struct xfs_da_args *args) +{ + utf8data_t nfkdi; + struct utf8cursor u8c; + unsigned char *norm; + ssize_t normlen; + int c; + + nfkdi = utf8nfkdi(utf8version); + /* Failure to normalize is treated as a blob. */ + if ((normlen = utf8nlen(nfkdi, (const char *)args->name, + args->namelen)) < 0) + goto blob; + if (utf8ncursor(&u8c, nfkdi, (const char *)args->name, + args->namelen) < 0) + goto blob; + if (!(norm = kmem_alloc(normlen + 1, KM_NOFS|KM_MAYFAIL))) + return ENOMEM; + args->norm = norm; + args->normlen = normlen; + while ((c = utf8byte(&u8c)) > 0) + *norm++ = c; + if (c == 0) { + *norm = '\0'; + args->hashval = xfs_da_hashname(args->norm, args->normlen); + return 0; + } + kmem_free((void *)args->norm); +blob: + args->norm = NULL; + args->normlen = -1; + args->hashval = xfs_da_hashname(args->name, args->namelen); + return 0; +} + +static enum xfs_dacmp +xfs_utf8_compname( + struct xfs_da_args *args, + const unsigned char *name, + int len) +{ + utf8data_t nfkdi; + struct utf8cursor u8c; + const char *norm; + int c; + + ASSERT(args->norm || args->normlen == -1); + + /* Check for an exact match first. */ + if (args->namelen == len && memcmp(args->name, name, len) == 0) + return XFS_CMP_EXACT; + /* xfs_utf8_normhash() set args->normlen to -1 for a blob */ + if (args->normlen < 0) + return XFS_CMP_DIFFERENT; + nfkdi = utf8nfkdi(utf8version); + if (utf8ncursor(&u8c, nfkdi, (const char *)name, len) < 0) + return XFS_CMP_DIFFERENT; + norm = (const char *)args->norm; + while ((c = utf8byte(&u8c)) > 0) + if (c != *norm++) + return XFS_CMP_DIFFERENT; + if (c < 0 || *norm != '\0') + return XFS_CMP_DIFFERENT; + return XFS_CMP_MATCH; +} + +struct xfs_nameops xfs_utf8_nameops = { + .hashname = xfs_utf8_hashname, + .normhash = xfs_utf8_normhash, + .compname = xfs_utf8_compname, +}; + +/* + * xfs nameops using nfkdicf + */ + +static xfs_dahash_t +xfs_utf8_ci_hashname( + const unsigned char *name, + int len) +{ + utf8data_t nfkdicf; + struct utf8cursor u8c; + xfs_dahash_t hash; + int val; + + nfkdicf = utf8nfkdicf(utf8version); + hash = 0; + if (utf8ncursor(&u8c, nfkdicf, (const char *)name, len) < 0) + goto blob; + while ((val = utf8byte(&u8c)) > 0) + hash = val ^ rol32(hash, 7); + /* In case of error treat the name as a binary blob. */ + if (val == 0) + return hash; +blob: + return xfs_da_hashname(name, len); +} + +static int +xfs_utf8_ci_normhash( + struct xfs_da_args *args) +{ + utf8data_t nfkdicf; + struct utf8cursor u8c; + unsigned char *norm; + ssize_t normlen; + int c; + + nfkdicf = utf8nfkdicf(utf8version); + /* Failure to normalize is treated as a blob. */ + if ((normlen = utf8nlen(nfkdicf, (const char *)args->name, + args->namelen)) < 0) + goto blob; + if (utf8ncursor(&u8c, nfkdicf, (const char *)args->name, + args->namelen) < 0) + goto blob; + if (!(norm = kmem_alloc(normlen + 1, KM_NOFS|KM_MAYFAIL))) + return ENOMEM; + args->norm = norm; + args->normlen = normlen; + while ((c = utf8byte(&u8c)) > 0) + *norm++ = c; + if (c == 0) { + *norm = '\0'; + args->hashval = xfs_da_hashname(args->norm, args->normlen); + return 0; + } + kmem_free((void *)args->norm); +blob: + args->norm = NULL; + args->normlen = -1; + args->hashval = xfs_da_hashname(args->name, args->namelen); + return 0; +} + +static enum xfs_dacmp +xfs_utf8_ci_compname( + struct xfs_da_args *args, + const unsigned char *name, + int len) +{ + utf8data_t nfkdicf; + struct utf8cursor u8c; + const unsigned char *norm; + int c; + + ASSERT(args->norm || args->normlen == -1); + + /* Check for an exact match first. */ + if (args->namelen == len && memcmp(args->name, name, len) == 0) + return XFS_CMP_EXACT; + /* xfs_utf8_ci_normhash() set args->normlen to -1 for a blob */ + if (args->normlen < 0) + return XFS_CMP_DIFFERENT; + nfkdicf = utf8nfkdicf(utf8version); + if (utf8ncursor(&u8c, nfkdicf, (const char *)name, len) < 0) + return XFS_CMP_DIFFERENT; + norm = args->norm; + while ((c = utf8byte(&u8c)) > 0) + if (c != *norm++) + return XFS_CMP_DIFFERENT; + if (c < 0 || *norm != '\0') + return XFS_CMP_DIFFERENT; + return XFS_CMP_MATCH; +} + +struct xfs_nameops xfs_utf8_ci_nameops = { + .hashname = xfs_utf8_ci_hashname, + .normhash = xfs_utf8_ci_normhash, + .compname = xfs_utf8_ci_compname, +}; diff --git a/support/Makefile b/support/Makefile new file mode 100644 index 0000000..cade5fe --- /dev/null +++ b/support/Makefile @@ -0,0 +1,24 @@ +# +# Copyright (c) 2014 SGI. All Rights Reserved. +# + +TOPDIR = .. +include $(TOPDIR)/include/builddefs + +default = ../include/utf8data.h + +../include/utf8data.h: mkutf8data.c + cc -o mkutf8data mkutf8data.c + cd ucd-7.0.0 ; ../mkutf8data + mv ucd-7.0.0/utf8data.h ../include + +default clean: + rm -f mkutf8data ../include/utf8data.h + +default install: + +default install-dev: + +default install-qa: + +-include .ltdep -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 16:01:07 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C3D227F9C for ; Thu, 11 Sep 2014 16:01:07 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id A18A68F8037; Thu, 11 Sep 2014 14:01:04 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 66BAB4266DC; Thu, 11 Sep 2014 16:01:04 -0500 (CDT) Date: Thu, 11 Sep 2014 16:01:04 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 09/13] libxfs: apply utf-8 normalization rules to user extended attribute names Message-ID: <20140911210104.GR13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Apply the same rules for UTF-8 normalization to the names of user-defined extended attributes. System attributes are excluded because they are not user-visible in the first place, and the kernel is expected to know what it is doing when naming them. Signed-off-by: Olaf Weber --- libxfs/xfs_attr.c | 49 +++++++++++++++++++++++++++++++++++++++++-------- libxfs/xfs_attr_leaf.c | 11 +++++++++-- libxfs/xfs_utf8.c | 7 +++++++ 3 files changed, 57 insertions(+), 10 deletions(-) diff --git a/libxfs/xfs_attr.c b/libxfs/xfs_attr.c index 17519d3..c30703b 100644 --- a/libxfs/xfs_attr.c +++ b/libxfs/xfs_attr.c @@ -88,8 +88,9 @@ xfs_attr_get_int( int *valuelenp, int flags) { - xfs_da_args_t args; - int error; + xfs_da_args_t args; + struct xfs_mount *mp = ip->i_mount; + int error; if (!xfs_inode_hasattr(ip)) return ENOATTR; @@ -103,9 +104,12 @@ xfs_attr_get_int( args.value = value; args.valuelen = *valuelenp; args.flags = flags; - args.hashval = xfs_da_hashname(args.name, args.namelen); args.dp = ip; args.whichfork = XFS_ATTR_FORK; + if (! xfs_sb_version_hasutf8(&mp->m_sb)) + args.hashval = xfs_da_hashname(args.name, args.namelen); + else if ((error = mp->m_dirnameops->normhash(&args)) != 0) + return error; /* * Decide on what work routines to call based on the inode size. @@ -118,6 +122,9 @@ xfs_attr_get_int( error = xfs_attr_node_get(&args); } + if (args.norm) + kmem_free((void *)args.norm); + /* * Return the number of bytes in the value to the caller. */ @@ -239,12 +246,15 @@ xfs_attr_set_int( args.value = value; args.valuelen = valuelen; args.flags = flags; - args.hashval = xfs_da_hashname(args.name, args.namelen); args.dp = dp; args.firstblock = &firstblock; args.flist = &flist; args.whichfork = XFS_ATTR_FORK; args.op_flags = XFS_DA_OP_ADDNAME | XFS_DA_OP_OKNOENT; + if (! xfs_sb_version_hasutf8(&mp->m_sb)) + args.hashval = xfs_da_hashname(args.name, args.namelen); + else if ((error = mp->m_dirnameops->normhash(&args)) != 0) + return error; /* Size is now blocks for attribute data */ args.total = xfs_attr_calc_size(dp, name->len, valuelen, &local); @@ -276,6 +286,8 @@ xfs_attr_set_int( error = xfs_trans_reserve(args.trans, &tres, args.total, 0); if (error) { xfs_trans_cancel(args.trans, 0); + if (args.norm) + kmem_free((void *)args.norm); return(error); } xfs_ilock(dp, XFS_ILOCK_EXCL); @@ -286,6 +298,8 @@ xfs_attr_set_int( if (error) { xfs_iunlock(dp, XFS_ILOCK_EXCL); xfs_trans_cancel(args.trans, XFS_TRANS_RELEASE_LOG_RES); + if (args.norm) + kmem_free((void *)args.norm); return (error); } @@ -333,7 +347,8 @@ xfs_attr_set_int( err2 = xfs_trans_commit(args.trans, XFS_TRANS_RELEASE_LOG_RES); xfs_iunlock(dp, XFS_ILOCK_EXCL); - + if (args.norm) + kmem_free((void *)args.norm); return(error == 0 ? err2 : error); } @@ -398,6 +413,8 @@ xfs_attr_set_int( xfs_trans_log_inode(args.trans, dp, XFS_ILOG_CORE); error = xfs_trans_commit(args.trans, XFS_TRANS_RELEASE_LOG_RES); xfs_iunlock(dp, XFS_ILOCK_EXCL); + if (args.norm) + kmem_free((void *)args.norm); return(error); @@ -406,6 +423,9 @@ out: xfs_trans_cancel(args.trans, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT); xfs_iunlock(dp, XFS_ILOCK_EXCL); + if (args.norm) + kmem_free((void *)args.norm); + return(error); } @@ -452,12 +472,15 @@ xfs_attr_remove_int(xfs_inode_t *dp, struct xfs_name *name, int flags) args.name = name->name; args.namelen = name->len; args.flags = flags; - args.hashval = xfs_da_hashname(args.name, args.namelen); args.dp = dp; args.firstblock = &firstblock; args.flist = &flist; args.total = 0; args.whichfork = XFS_ATTR_FORK; + if (! xfs_sb_version_hasutf8(&mp->m_sb)) + args.hashval = xfs_da_hashname(args.name, args.namelen); + else if ((error = mp->m_dirnameops->normhash(&args)) != 0) + return error; /* * we have no control over the attribute names that userspace passes us @@ -470,8 +493,11 @@ xfs_attr_remove_int(xfs_inode_t *dp, struct xfs_name *name, int flags) * Attach the dquots to the inode. */ error = xfs_qm_dqattach(dp, 0); - if (error) - return error; + if (error) { + if (args.norm) + kmem_free((void *)args.norm); + return error; + } /* * Start our first transaction of the day. @@ -497,6 +523,8 @@ xfs_attr_remove_int(xfs_inode_t *dp, struct xfs_name *name, int flags) XFS_ATTRRM_SPACE_RES(mp), 0); if (error) { xfs_trans_cancel(args.trans, 0); + if (args.norm) + kmem_free((void *)args.norm); return(error); } @@ -546,6 +574,8 @@ xfs_attr_remove_int(xfs_inode_t *dp, struct xfs_name *name, int flags) xfs_trans_log_inode(args.trans, dp, XFS_ILOG_CORE); error = xfs_trans_commit(args.trans, XFS_TRANS_RELEASE_LOG_RES); xfs_iunlock(dp, XFS_ILOCK_EXCL); + if (args.norm) + kmem_free((void *)args.norm); return(error); @@ -554,6 +584,9 @@ out: xfs_trans_cancel(args.trans, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT); xfs_iunlock(dp, XFS_ILOCK_EXCL); + if (args.norm) + kmem_free((void *)args.norm); + return(error); } diff --git a/libxfs/xfs_attr_leaf.c b/libxfs/xfs_attr_leaf.c index f7f02ae..052a6a1 100644 --- a/libxfs/xfs_attr_leaf.c +++ b/libxfs/xfs_attr_leaf.c @@ -634,6 +634,7 @@ int xfs_attr_shortform_to_leaf(xfs_da_args_t *args) { xfs_inode_t *dp; + struct xfs_mount *mp; xfs_attr_shortform_t *sf; xfs_attr_sf_entry_t *sfe; xfs_da_args_t nargs; @@ -646,6 +647,7 @@ xfs_attr_shortform_to_leaf(xfs_da_args_t *args) trace_xfs_attr_sf_to_leaf(args); dp = args->dp; + mp = dp->i_mount; ifp = dp->i_afp; sf = (xfs_attr_shortform_t *)ifp->if_u1.if_data; size = be16_to_cpu(sf->hdr.totsize); @@ -698,13 +700,18 @@ xfs_attr_shortform_to_leaf(xfs_da_args_t *args) nargs.namelen = sfe->namelen; nargs.value = &sfe->nameval[nargs.namelen]; nargs.valuelen = sfe->valuelen; - nargs.hashval = xfs_da_hashname(sfe->nameval, - sfe->namelen); nargs.flags = XFS_ATTR_NSP_ONDISK_TO_ARGS(sfe->flags); + if (! xfs_sb_version_hasutf8(&mp->m_sb)) + nargs.hashval = xfs_da_hashname(sfe->nameval, + sfe->namelen); + else if ((error = mp->m_dirnameops->normhash(&nargs)) != 0) + goto out; error = xfs_attr3_leaf_lookup_int(bp, &nargs); /* set a->index */ ASSERT(error == ENOATTR); error = xfs_attr3_leaf_add(bp, &nargs); ASSERT(error != ENOSPC); + if (nargs.norm) + kmem_free((void *)nargs.norm); if (error) goto out; sfe = XFS_ATTR_SF_NEXTENTRY(sfe); diff --git a/libxfs/xfs_utf8.c b/libxfs/xfs_utf8.c index f5cc231..5c69591 100644 --- a/libxfs/xfs_utf8.c +++ b/libxfs/xfs_utf8.c @@ -31,6 +31,7 @@ #include "xfs_inode_fork.h" #include "xfs_bmap.h" #include "xfs_dir2.h" +#include "xfs_attr_leaf.h" #include "xfs_trace.h" #include "xfs_utf8.h" #include "utf8norm.h" @@ -72,6 +73,9 @@ xfs_utf8_normhash( ssize_t normlen; int c; + /* Don't normalize system attribute names. */ + if (args->flags & (ATTR_ROOT|ATTR_SECURE)) + goto blob; nfkdi = utf8nfkdi(utf8version); /* Failure to normalize is treated as a blob. */ if ((normlen = utf8nlen(nfkdi, (const char *)args->name, @@ -173,6 +177,9 @@ xfs_utf8_ci_normhash( ssize_t normlen; int c; + /* Don't normalize system attribute names. */ + if (args->flags & (ATTR_ROOT|ATTR_SECURE)) + goto blob; nfkdicf = utf8nfkdicf(utf8version); /* Failure to normalize is treated as a blob. */ if ((normlen = utf8nlen(nfkdicf, (const char *)args->name, -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 16:02:54 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id CF3547F9C for ; Thu, 11 Sep 2014 16:02:54 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id B53AE8F8037; Thu, 11 Sep 2014 14:02:54 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 86E884266DC; Thu, 11 Sep 2014 16:02:54 -0500 (CDT) Date: Thu, 11 Sep 2014 16:02:54 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: tinguely@sgi.com, olaf@sgi.com Subject: [PATCH 10/13] xfsprogs: add utf8 support to growfs Message-ID: <20140911210254.GS13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Mark Tinguely Add utf-8 to xfs_growfs and xfs_info. Signed-off-by: Mark Tinguely --- growfs/xfs_growfs.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/growfs/xfs_growfs.c b/growfs/xfs_growfs.c index 8e611b6..6c41803 100644 --- a/growfs/xfs_growfs.c +++ b/growfs/xfs_growfs.c @@ -57,7 +57,8 @@ report_info( int crcs_enabled, int cimode, int ftype_enabled, - int finobt_enabled) + int finobt_enabled, + int utf8) { printf(_( "meta-data=%-22s isize=%-6u agcount=%u, agsize=%u blks\n" @@ -65,7 +66,7 @@ report_info( " =%-22s crc=%-8u finobt=%u\n" "data =%-22s bsize=%-6u blocks=%llu, imaxpct=%u\n" " =%-22s sunit=%-6u swidth=%u blks\n" - "naming =version %-14u bsize=%-6u ascii-ci=%d ftype=%d\n" + "naming =version %-14u bsize=%-6u ascii-ci=%d ftype=%d utf8=%d\n" "log =%-22s bsize=%-6u blocks=%u, version=%u\n" " =%-22s sectsz=%-5u sunit=%u blks, lazy-count=%u\n" "realtime =%-22s extsz=%-6u blocks=%llu, rtextents=%llu\n"), @@ -76,7 +77,7 @@ report_info( "", geo.blocksize, (unsigned long long)geo.datablocks, geo.imaxpct, "", geo.sunit, geo.swidth, - dirversion, geo.dirblocksize, cimode, ftype_enabled, + dirversion, geo.dirblocksize, cimode, ftype_enabled, utf8, isint ? _("internal") : logname ? logname : _("external"), geo.blocksize, geo.logblocks, logversion, "", geo.logsectsize, geo.logsunit / geo.blocksize, lazycount, @@ -114,6 +115,7 @@ main(int argc, char **argv) long long rsize; /* new rt size in fs blocks */ int ci; /* ASCII case-insensitive fs */ int lazycount; /* lazy superblock counters */ + int utf8; /* Unicode chars supported */ int xflag; /* -x flag */ char *fname; /* mount point name */ char *datadev; /* data device name */ @@ -247,11 +249,12 @@ main(int argc, char **argv) crcs_enabled = geo.flags & XFS_FSOP_GEOM_FLAGS_V5SB ? 1 : 0; ftype_enabled = geo.flags & XFS_FSOP_GEOM_FLAGS_FTYPE ? 1 : 0; finobt_enabled = geo.flags & XFS_FSOP_GEOM_FLAGS_FINOBT ? 1 : 0; + utf8 = geo.flags & XFS_FSOP_GEOM_FLAGS_UTF8 ? 1 : 0; if (nflag) { report_info(geo, datadev, isint, logdev, rtdev, lazycount, dirversion, logversion, attrversion, projid32bit, crcs_enabled, ci, - ftype_enabled, finobt_enabled); + ftype_enabled, finobt_enabled, utf8); exit(0); } @@ -289,7 +292,7 @@ main(int argc, char **argv) report_info(geo, datadev, isint, logdev, rtdev, lazycount, dirversion, logversion, attrversion, projid32bit, crcs_enabled, ci, ftype_enabled, - finobt_enabled); + finobt_enabled, utf8); ddsize = xi.dsize; dlsize = ( xi.logBBsize? xi.logBBsize : -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 16:03:47 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E04307FAA for ; Thu, 11 Sep 2014 16:03:46 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id 63CE8AC001; Thu, 11 Sep 2014 14:03:43 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 148E54266DC; Thu, 11 Sep 2014 16:03:43 -0500 (CDT) Date: Thu, 11 Sep 2014 16:03:43 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: tinguely@sgi.com, olaf@sgi.com Subject: [PATCH 11/13] xfsprogs: add utf8 support to mkfs.xfs Message-ID: <20140911210343.GT13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Mark Tinguely Set the utf-8 feature bit. Signed-off-by: Mark Tinguely --- man/man8/mkfs.xfs.8 | 9 ++++++++- mkfs/xfs_mkfs.c | 27 ++++++++++++++++++++++----- mkfs/xfs_mkfs.h | 3 ++- 3 files changed, 32 insertions(+), 7 deletions(-) diff --git a/man/man8/mkfs.xfs.8 b/man/man8/mkfs.xfs.8 index ad9ff3d..aa43cf5 100644 --- a/man/man8/mkfs.xfs.8 +++ b/man/man8/mkfs.xfs.8 @@ -558,7 +558,7 @@ any power of 2 size from the filesystem block size up to 65536. .IP The .B version=ci -option enables ASCII only case-insensitive filename lookup and version +option enables ASCII or UTF-8 case-insensitive filename lookup and version 2 directories. Filenames are case-preserving, that is, the names are stored in directories using the case they were created with. .IP @@ -582,6 +582,13 @@ When CRCs are enabled via the ftype functionality is always enabled. This feature can not be turned off for such filesystem configurations. .IP +.TP +.BI utf8[= value ] +This is used to enable the UTF-8 character set support. The +.I value +is either 0 or 1, with 1 signifying that UTF-8 character support is to be +enabled. If the value is omitted, 1 is assumed. +.IP .RE .TP .BI \-p " protofile" diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c index c85258a..1829e51 100644 --- a/mkfs/xfs_mkfs.c +++ b/mkfs/xfs_mkfs.c @@ -149,6 +149,8 @@ char *nopts[] = { "version", #define N_FTYPE 3 "ftype", +#define N_UTF8 4 + "utf8", NULL, }; @@ -958,6 +960,7 @@ main( int nsflag; int nvflag; int nci; + int utf8; int Nflag; int discard = 1; char *p; @@ -1004,6 +1007,7 @@ main( logagno = logblocks = rtblocks = rtextblocks = 0; Nflag = nlflag = nsflag = nvflag = nci = 0; nftype = dirftype = 0; /* inode type information in the dir */ + utf8 = 0; /* utf-8 support */ dirblocklog = dirblocksize = 0; dirversion = XFS_DFL_DIR_VERSION; qflag = 0; @@ -1565,7 +1569,8 @@ _("cannot specify both crc and ftype\n")); if (nvflag) respec('n', nopts, N_VERSION); if (!strcasecmp(value, "ci")) { - nci = 1; /* ASCII CI mode */ + /* ASCII or UTF-8 CI mode */ + nci = 1; } else { dirversion = atoi(value); if (dirversion != 2) @@ -1587,6 +1592,14 @@ _("cannot specify both crc and ftype\n")); } nftype = 1; break; + case N_UTF8: + if (!value || *value == '\0') + value = "1"; + c = atoi(value); + if (c < 0 || c > 1) + illegal(value, "n utf8"); + utf8 = c; + break; default: unknown('n', value); } @@ -2460,7 +2473,8 @@ _("size %s specified for log subvolume is too large, maximum is %lld blocks\n"), */ sbp->sb_features2 = XFS_SB_VERSION2_MKFS(crcs_enabled, lazy_sb_counters, attrversion == 2, !projid16bit, 0, - (!crcs_enabled && dirftype)); + (!crcs_enabled && dirftype), + (!crcs_enabled && utf8)); sbp->sb_versionnum = XFS_SB_VERSION_MKFS(crcs_enabled, iaflag, dsunit != 0, logversion == 2, attrversion == 1, @@ -2534,6 +2548,9 @@ _("size %s specified for log subvolume is too large, maximum is %lld blocks\n"), if (crcs_enabled) { sbp->sb_features_incompat = XFS_SB_FEAT_INCOMPAT_FTYPE; dirftype = 1; + /* turn on the utf-8 support */ + if (utf8) + sbp->sb_features_incompat |= XFS_SB_FEAT_INCOMPAT_UTF8; } if (!qflag || Nflag) { @@ -2543,7 +2560,7 @@ _("size %s specified for log subvolume is too large, maximum is %lld blocks\n"), " =%-22s crc=%-8u finobt=%u\n" "data =%-22s bsize=%-6u blocks=%llu, imaxpct=%u\n" " =%-22s sunit=%-6u swidth=%u blks\n" - "naming =version %-14u bsize=%-6u ascii-ci=%d ftype=%d\n" + "naming =version %-14u bsize=%-6u ascii-ci=%d ftype=%d utf8=%d\n" "log =%-22s bsize=%-6d blocks=%lld, version=%d\n" " =%-22s sectsz=%-5u sunit=%d blks, lazy-count=%d\n" "realtime =%-22s extsz=%-6d blocks=%lld, rtextents=%lld\n"), @@ -2552,7 +2569,7 @@ _("size %s specified for log subvolume is too large, maximum is %lld blocks\n"), "", crcs_enabled, finobt, "", blocksize, (long long)dblocks, imaxpct, "", dsunit, dswidth, - dirversion, dirblocksize, nci, dirftype, + dirversion, dirblocksize, nci, dirftype, utf8, logfile, 1 << blocklog, (long long)logblocks, logversion, "", lsectorsize, lsunit, lazy_sb_counters, rtfile, rtextblocks << blocklog, @@ -3171,7 +3188,7 @@ usage( void ) sunit=value|su=num,sectlog=n|sectsize=num,\n\ lazy-count=0|1]\n\ /* label */ [-L label (maximum 12 characters)]\n\ -/* naming */ [-n log=n|size=num,version=2|ci,ftype=0|1]\n\ +/* naming */ [-n log=n|size=num,version=2|ci,ftype=0|1,utf8=0|1]\n\ /* no-op info only */ [-N]\n\ /* prototype file */ [-p fname]\n\ /* quiet */ [-q]\n\ diff --git a/mkfs/xfs_mkfs.h b/mkfs/xfs_mkfs.h index 9df5f37..f40b284 100644 --- a/mkfs/xfs_mkfs.h +++ b/mkfs/xfs_mkfs.h @@ -37,13 +37,14 @@ 0 ) : XFS_SB_VERSION_1 ) #define XFS_SB_VERSION2_MKFS(crc, lazycount, attr2, projid32bit, parent, \ - ftype) (\ + ftype, utf8) (\ ((lazycount) ? XFS_SB_VERSION2_LAZYSBCOUNTBIT : 0) | \ ((attr2) ? XFS_SB_VERSION2_ATTR2BIT : 0) | \ ((projid32bit) ? XFS_SB_VERSION2_PROJID32BIT : 0) | \ ((parent) ? XFS_SB_VERSION2_PARENTBIT : 0) | \ ((crc) ? XFS_SB_VERSION2_CRCBIT : 0) | \ ((ftype) ? XFS_SB_VERSION2_FTYPE : 0) | \ + ((utf8) ? XFS_SB_VERSION2_UTF8BIT : 0) | \ 0 ) #define XFS_DFL_BLOCKSIZE_LOG 12 /* 4096 byte blocks */ -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 16:04:23 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD, T_FILL_THIS_FORM_SHORT autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 1650A7FA6 for ; Thu, 11 Sep 2014 16:04:23 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id E1D108F8037; Thu, 11 Sep 2014 14:04:22 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id A992C4266DC; Thu, 11 Sep 2014 16:04:22 -0500 (CDT) Date: Thu, 11 Sep 2014 16:04:22 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: tinguely@sgi.com, olaf@sgi.com Subject: [PATCH 12/13] xfsprogs: add utf8 support to xfs_repair Message-ID: <20140911210422.GU13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Mark Tinguely Fix the duplicate filename detection to use the utf-8 normalization routines. Signed-off-by: Mark Tinguely --- repair/phase6.c | 35 +++++++++++++++++++++++++---------- 1 file changed, 25 insertions(+), 10 deletions(-) diff --git a/repair/phase6.c b/repair/phase6.c index f374fd0..eb3ea35 100644 --- a/repair/phase6.c +++ b/repair/phase6.c @@ -176,13 +176,15 @@ dir_hash_add( unsigned char *name, __uint8_t ftype) { - xfs_dahash_t hash = 0; int byaddr; int byhash = 0; dir_hash_ent_t *p; int dup; short junk; struct xfs_name xname; + xfs_da_args_t args; + + memset(&args, 0, sizeof(xfs_da_args_t)); ASSERT(!hashtab->names_duped); @@ -195,19 +197,30 @@ dir_hash_add( dup = 0; if (!junk) { - hash = mp->m_dirnameops->hashname(name, namelen); - byhash = DIR_HASH_FUNC(hashtab, hash); + int error; + + args.name = name; + args.namelen = namelen; + args.inumber = inum; + args.whichfork = XFS_DATA_FORK; + + error = mp->m_dirnameops->normhash(&args); + if (error) + do_error(_("normalize has failed %d)\n"), error); + + byhash = DIR_HASH_FUNC(hashtab, args.hashval); /* * search hash bucket for existing name. */ for (p = hashtab->byhash[byhash]; p; p = p->nextbyhash) { - if (p->hashval == hash && p->name.len == namelen) { - if (memcmp(p->name.name, name, namelen) == 0) { - dup = 1; - junk = 1; - break; - } + if (p->hashval == args.hashval && + mp->m_dirnameops->compname(&args, p->name.name, + p->name.len) != + XFS_CMP_DIFFERENT) { + dup = 1; + junk = 1; + break; } } } @@ -226,7 +239,7 @@ dir_hash_add( hashtab->last = p; if (!(p->junkit = junk)) { - p->hashval = hash; + p->hashval = args.hashval; p->nextbyhash = hashtab->byhash[byhash]; hashtab->byhash[byhash] = p; } @@ -235,6 +248,8 @@ dir_hash_add( p->seen = 0; p->name = xname; + if (args.norm) + kmem_free((void *) args.norm); return !dup; } -- 1.7.12.4 From bpm@sgi.com Thu Sep 11 16:06:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C0FA17FAC for ; Thu, 11 Sep 2014 16:06:17 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay2.corp.sgi.com (Postfix) with ESMTP id 90C94304043; Thu, 11 Sep 2014 14:06:17 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 40FF84266DC; Thu, 11 Sep 2014 16:06:17 -0500 (CDT) Date: Thu, 11 Sep 2014 16:06:17 -0500 From: Ben Myers To: xfs@oss.sgi.com Cc: tinguely@sgi.com, olaf@sgi.com Subject: [PATCH 13/13] xfsprogs: add a preliminary test for utf8 support Message-ID: <20140911210617.GV13262@sgi.com> References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Ben Myers Here's a preliminary test for utf8 support in xfs. It is based on Olaf's code that does some testing in the trie generator. Here too we are using the NormalizationTest.txt file from the unicode distribution. We check that the normalization in libxfs is working and then run checks on a filesystem. Note that there are some 'blacklisted' unichars which normalize to reserved characters. FIXME: For convenience of build this patch is against xfsprogs access to libxfs. Handling of ignorables and case fold is also not implemented here. --- Makefile | 2 +- chkutf8data/Makefile | 21 +++ chkutf8data/chkutf8data.c | 430 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 452 insertions(+), 1 deletion(-) create mode 100644 chkutf8data/Makefile create mode 100644 chkutf8data/chkutf8data.c diff --git a/Makefile b/Makefile index c442da6..d4c0a23 100644 --- a/Makefile +++ b/Makefile @@ -42,7 +42,7 @@ endif LIB_SUBDIRS = support libxfs libxlog libxcmd libhandle libdisk TOOL_SUBDIRS = copy db estimate fsck fsr growfs io logprint mkfs quota \ - mdrestore repair rtcp m4 man doc po debian + mdrestore repair rtcp m4 man doc po debian chkutf8data SUBDIRS = include $(LIB_SUBDIRS) $(TOOL_SUBDIRS) diff --git a/chkutf8data/Makefile b/chkutf8data/Makefile new file mode 100644 index 0000000..6ce5706 --- /dev/null +++ b/chkutf8data/Makefile @@ -0,0 +1,21 @@ +# +# Copyright (c) 2014 SGI. All Rights Reserved. +# + +TOPDIR = .. +include $(TOPDIR)/include/builddefs + +LTCOMMAND = chkutf8data +CFILES = chkutf8data.c + +LLDLIBS = $(LIBXFS) +LTDEPENDENCIES = $(LIBXFS) +LLDFLAGS = -static + +default: depend $(LTCOMMAND) + +include $(BUILDRULES) + +install: default + +-include .ltdep diff --git a/chkutf8data/chkutf8data.c b/chkutf8data/chkutf8data.c new file mode 100644 index 0000000..487cf1e --- /dev/null +++ b/chkutf8data/chkutf8data.c @@ -0,0 +1,430 @@ +/* + * Copyright (c) 2014 SGI. + * 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 +#include +#include +#include "utf8norm.h" + +#define FOLD_NAME "CaseFolding.txt" +#define TEST_NAME "NormalizationTest.txt" + +const char *fold_name = FOLD_NAME; +const char *test_name = TEST_NAME; + +/* An arbitrary line size limit on input lines. */ + +#define LINESIZE 1024 +char line[LINESIZE]; +char buf0[LINESIZE]; +char buf1[LINESIZE]; +char buf2[LINESIZE]; +char buf3[LINESIZE]; +char buf4[LINESIZE]; +char buf5[LINESIZE]; + +const char *mtpt; +int verbose = 0; + +/* ------------------------------------------------------------------ */ + +static void +help(void) +{ + printf("The input files:\n"); + printf("\t-f %s\n", FOLD_NAME); + printf("\t-t %s\n", TEST_NAME); + printf("\n\n"); + printf("\t-m mtpt\n"); + printf("\t-v (verbose)\n"); + printf("\t-h (help)\n"); + printf("\n"); +} + +static void +usage(void) +{ + help(); + exit(1); +} + +static void +open_fail(const char *name, int error) +{ + printf("Error %d opening %s: %s\n", error, name, strerror(error)); + exit(1); +} + +static void +file_fail(const char *filename) +{ + printf("Error parsing %s\n", filename); + exit(1); +} + +/* ------------------------------------------------------------------ */ + +/* + * UTF8 valid ranges. + * + * The UTF-8 encoding spreads the bits of a 32bit word over several + * bytes. This table gives the ranges that can be held and how they'd + * be represented. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000000 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000000 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * There is an additional requirement on UTF-8, in that only the + * shortest representation of a 32bit value is to be used. A decoder + * must not decode sequences that do not satisfy this requirement. + * Thus the allowed ranges have a lower bound. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000080 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000800 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00010000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00200000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x04000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * Actual unicode characters are limited to the range 0x0 - 0x10FFFF, + * 17 planes of 65536 values. This limits the sequences actually seen + * even more, to just the following. + * + * 0 - 0x7f: 0 0x7f + * 0x80 - 0x7ff: 0xc2 0x80 0xdf 0xbf + * 0x800 - 0xffff: 0xe0 0xa0 0x80 0xef 0xbf 0xbf + * 0x10000 - 0x10ffff: 0xf0 0x90 0x80 0x80 0xf4 0x8f 0xbf 0xbf + * + * Even within those ranges not all values are allowed: the surrogates + * 0xd800 - 0xdfff should never be seen. + * + * Note that the longest sequence seen with valid usage is 4 bytes, + * the same a single UTF-32 character. This makes the UTF-8 + * representation of Unicode strictly smaller than UTF-32. + * + * The shortest sequence requirement was introduced by: + * Corrigendum #1: UTF-8 Shortest Form + * It can be found here: + * http://www.unicode.org/versions/corrigendum1.html + * + */ + +#define UTF8_2_BITS 0xC0 +#define UTF8_3_BITS 0xE0 +#define UTF8_4_BITS 0xF0 +#define UTF8_N_BITS 0x80 +#define UTF8_2_MASK 0xE0 +#define UTF8_3_MASK 0xF0 +#define UTF8_4_MASK 0xF8 +#define UTF8_N_MASK 0xC0 +#define UTF8_V_MASK 0x3F +#define UTF8_V_SHIFT 6 + +static int +utf8key(unsigned int key, char keyval[]) +{ + int keylen; + + if (key < 0x80) { + keyval[0] = key; + keylen = 1; + } else if (key < 0x800) { + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_2_BITS; + keylen = 2; + } else if (key < 0x10000) { + keyval[2] = key & UTF8_V_MASK; + keyval[2] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_3_BITS; + keylen = 3; + } else if (key < 0x110000) { + keyval[3] = key & UTF8_V_MASK; + keyval[3] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[2] = key & UTF8_V_MASK; + keyval[2] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_4_BITS; + keylen = 4; + } else { + printf("%#x: illegal key\n", key); + keylen = 0; + } + return keylen; +} + +static int +normalize_line(utf8data_t tree, char *s, char *t) +{ + struct utf8cursor u8c; + + if (utf8cursor(&u8c, tree, s)) { + printf("%s return utf8cursor failed\n", __func__); + return -1; + } + + while ((*t = utf8byte(&u8c)) > 0) + t++; + + if (*t < 0) { + printf("%s return error %d\r", __func__, *t); + return -1; + } + if (*t != 0) { + printf("%s return t not 0\n", __func__); + return -1; + } + + return 0; +} + +static void +test_key(char *source, + char *NFC, + char *NFD, + char *NFKC, + char *NFKD) +{ + int fd; + int error; + + if (verbose) + printf("Testing %s -> %s\n", source, NFKD); + + error = chdir(mtpt); /* XXX hardcoded mount point */ + if (error) { + perror(mtpt); + exit(-1); + } + + /* the initial create should succeed */ + if (verbose) + printf("Initial create %s... ", source); + fd = open(source, O_CREAT|O_EXCL, 0); + if (fd < 0) { + printf("Failed to create %s XXX\n", source); + perror(source); + close(fd); + exit(-1); + } + close(fd); + if (verbose) + printf("Success\n"); + + /* a second create should fail */ + if (verbose) + printf("Second create %s (should return EEXIST)... ", NFKD); + fd = open(NFKD, O_CREAT|O_EXCL, 0); + if (fd >= 1) { + printf("Test Failed. Was able to create %s XXX\n", NFKD); + perror(NFKD); + close(fd); + exit(-1); + } + close(fd); + if (verbose) + printf("EEXIST\n"); + + error = unlink(NFKD); + if (error) { + printf("Unlink failed\n"); + perror(NFKD); + exit(-1); + } +} + +int +blacklisted(unsigned int unichar) +{ + /* these unichars normalize to characters we don't allow */ + unsigned int list[] = { 0x2024 /* . */, + 0x2025 /* .. */, + 0x2100 /* a/c */, + 0x2101 /* a/s */, + 0x2105 /* c/o */, + 0x2106 /* c/u */, + 0xFE30 /* .. */, + 0xFE52 /* . */, + 0xFF0E /* . */, + 0xFF0F /* / */}; + int i; + + for (i=0; i < (sizeof(list) / sizeof(unichar)); i++) { + if (list[i] == unichar) + return 1; + } + return 0; +} + +static void +normalization_test(void) +{ + FILE *file; + unsigned int unichar; + char *s; + char *t; + int ret; + int tests = 0; + int failures = 0; + char source[LINESIZE]; + char NFKD[LINESIZE]; + int skip; + utf8data_t nfkdi = utf8nfkdi(utf8version); + + printf("Parsing %s\n", test_name); + /* Step one, read data from file. */ + file = fopen(test_name, "r"); + if (!file) + open_fail(test_name, errno); + + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%[^;];%*[^;];%*[^;];%*[^;];%[^;];", + source, NFKD); + //NFC, NFD, NFKC, NFKD); + if (ret != 2 || *line == '#') + continue; + + s = source; + t = buf2; + skip = 0; + while (*s) { + unichar = strtoul(s, &s, 16); + if (blacklisted(unichar)) + skip++; + t += utf8key(unichar, t); + } + *t = '\0'; + + if (skip) + continue; + + s = NFKD; + t = buf3; + while (*s) { + unichar = strtoul(s, &s, 16); + t += utf8key(unichar, t); + } + *t = '\0'; + + /* normalize source */ + if (normalize_line(nfkdi, buf2, buf4) < 0) { + printf("normalize_line for unichar %s Failed\n", buf0); + exit(1); + } + if (verbose) + printf("(%s) %s normalized to %s... ", + source, buf2, buf4); + + /* does it match NFKD? */ + tests++; + if (memcmp(buf4, buf3, strlen(buf3))) { + if (verbose) + printf("Fail!\n"); + failures++; + } else { + if (verbose) + printf("Correct!\n"); + } + + /* normalize NFKD */ + if (normalize_line(nfkdi, buf3, buf5) < 0) { + printf("normalize_line for unichar %s Failed\n", + buf3); + exit(1); + } + if (verbose) + printf("(%s) %s normalized to %s... ", + NFKD, buf3, buf5); + + /* does it normalize to itself? */ + tests++; + if (memcmp(buf5, buf3, strlen(buf3))) { + if (verbose) + printf("Fail!\n"); + failures++; + } else { + if (verbose) + printf("Correct!\n"); + } + + /* XXX ignorables need to be taken into account? */ + test_key(buf2, NULL, NULL, NULL, buf3); + } + fclose(file); + printf("Ran %d tests with %d failures\n", tests, failures); + if (failures) + file_fail(test_name); +} + +int +main(int argc, char *argv[]) +{ + int opt; + + while ((opt = getopt(argc, argv, "f:t:m:vh")) != -1) { + switch (opt) { + case 'f': + fold_name = optarg; + break; + case 't': + test_name = optarg; + break; + case 'm': + mtpt = optarg; + break; + case 'v': + verbose++; + break; + case 'h': + help(); + exit(0); + default: + usage(); + } + } + + if (!test_name || !mtpt) { + usage(); + exit(-1); + } + + normalization_test(); + + return 0; +} -- 1.7.12.4 From BATV+3a8580734ab415595e92+4036+infradead.org+hch@bombadil.srs.infradead.org Thu Sep 11 16:14:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 488B07FA8 for ; Thu, 11 Sep 2014 16:14:45 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 35368304032 for ; Thu, 11 Sep 2014 14:14:45 -0700 (PDT) X-ASG-Debug-ID: 1410470083-04cbb05485d1f4d0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id 3ufwUh6lXsmHKGGa (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 11 Sep 2014 14:14:43 -0700 (PDT) X-Barracuda-Envelope-From: BATV+3a8580734ab415595e92+4036+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XSBhT-000146-4D for xfs@oss.sgi.com; Thu, 11 Sep 2014 21:14:43 +0000 Date: Thu, 11 Sep 2014 14:14:43 -0700 From: Christoph Hellwig To: xfs@oss.sgi.com Subject: more pagecache invalidation issues? Message-ID: <20140911211443.GA2191@infradead.org> X-ASG-Orig-Subj: more pagecache invalidation issues? MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1410470083 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC5_MJ1963, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9380 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 I just hit this with Linus' tree from a day or two ago when running xfstests in my 64-bit x86 kvm VM: [ 1810.820601] ------------[ cut here ]------------ [ 1810.821730] kernel BUG at ../fs/xfs/xfs_aops.c:1373! [ 1810.822881] invalid opcode: 0000 [#1] SMP [ 1810.823177] Modules linked in: [ 1810.823177] CPU: 0 PID: 5324 Comm: 4980.fsstress.b Not tainted 3.17.0-rc4+ #266 [ 1810.823177] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 1810.823177] task: ffff88004fedc910 ti: ffff88000b340000 task.ti: ffff88000b340000 [ 1810.823177] RIP: 0010:[] [] __xfs_get_blocks+0x5cb/0x5d0 [ 1810.823177] RSP: 0018:ffff88000b343998 EFLAGS: 00010202 [ 1810.823177] RAX: ffff880079ddf580 RBX: 0000000000166000 RCX: ffff88004fedd0f8 [ 1810.823177] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000246 [ 1810.823177] RBP: ffff88000b343a38 R08: 0000000000000001 R09: 0000000000000000 [ 1810.823177] R10: 0000000000000000 R11: 00000000000785b0 R12: ffff88004863d9a0 [ 1810.823177] R13: ffff88004863d700 R14: ffff88000b343b50 R15: 0000000000000000 [ 1810.823177] FS: 00007ff4401c6700(0000) GS:ffff88007fc00000(0000) knlGS:0000000000000000 [ 1810.823177] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1810.823177] CR2: 00007ff4400c2008 CR3: 000000004fed3000 CR4: 00000000000006f0 [ 1810.823177] Stack: [ 1810.823177] ffff88000b343a18 0000000000005000 ffff88000b3439c8 ffff880000000000 [ 1810.823177] ffff880000000008 0000000000000166 000188004ff2e940 0000000000005000 [ 1810.823177] ffff88000b343a18 0000000100000202 000000000000015e ffffffffffffffff [ 1810.823177] Call Trace: [ 1810.823177] [] xfs_get_blocks_direct+0xf/0x20 [ 1810.823177] [] __blockdev_direct_IO+0x9ee/0x3340 [ 1810.823177] [] ? __xfs_get_blocks+0x5d0/0x5d0 [ 1810.823177] [] xfs_vm_direct_IO+0x130/0x150 [ 1810.823177] [] ? __xfs_get_blocks+0x5d0/0x5d0 [ 1810.823177] [] generic_file_read_iter+0x54a/0x610 [ 1810.823177] [] ? mark_held_locks+0x6a/0x90 [ 1810.823177] [] xfs_file_read_iter+0xf9/0x2b0 [ 1810.823177] [] ? might_fault+0x3e/0x90 [ 1810.823177] [] new_sync_read+0x79/0xb0 [ 1810.823177] [] vfs_read+0x9b/0x190 [ 1810.823177] [] SyS_read+0x51/0xc0 [ 1810.823177] [] system_call_fastpath+0x16/0x1b The BUG_ON is this one: if (imap.br_startblock == DELAYSTARTBLOCK) { BUG_ON(direct); if (create) { .. From david@fromorbit.com Thu Sep 11 16:19:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 1756B7FAF for ; Thu, 11 Sep 2014 16:19:21 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id F10A1304032 for ; Thu, 11 Sep 2014 14:19:20 -0700 (PDT) X-ASG-Debug-ID: 1410470357-04cbb05487d1f910001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id 0ni3leRYNiJt6X18 for ; Thu, 11 Sep 2014 14:19:18 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArMqAFkRElR5LCtmPGdsb2JhbABfgw2BKoIshQepdQEBAQEBAQaYeIVqBAIBgRAXBQEBAQE4N4QDAQEBAwE6HCMFCwgDDgoJJQ8FJQMHGhOIOge+IQEXGIVkiVEHgy+BHQWdAJkvKy+CTwEBAQ Received: from ppp121-44-43-102.lns20.syd6.internode.on.net (HELO dastard) ([121.44.43.102]) by ipmail06.adl6.internode.on.net with ESMTP; 12 Sep 2014 06:49:17 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XSBlr-0003Yu-BP; Fri, 12 Sep 2014 07:19:15 +1000 Date: Fri, 12 Sep 2014 07:19:15 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH v2 0/5] clean up collapse range and handle post-eof delalloc Message-ID: <20140911211915.GA4322@dastard> X-ASG-Orig-Subj: Re: [PATCH v2 0/5] clean up collapse range and handle post-eof delalloc References: <1410355231-50495-1-git-send-email-bfoster@redhat.com> <20140911044243.GA10111@dastard> <20140911152012.GB54638@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911152012.GB54638@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1410470358 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9380 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Sep 11, 2014 at 11:20:13AM -0400, Brian Foster wrote: > On Thu, Sep 11, 2014 at 02:42:43PM +1000, Dave Chinner wrote: > > On Wed, Sep 10, 2014 at 09:20:26AM -0400, Brian Foster wrote: > > > Hi all, > > > > > > Here's v2 of the collapse clean up. We refactor a bit more via the > > > insertion of patch 3, otherwise it's similar to v1. This will see some > > > continued testing, but it survived ~500m fsx operations overnight. > > > > > > Brian > > > > I'm not sure about the invalidation patch now. On a 1k block size > > filesystem, generic/127 fails with: > > > > +ltp/fsx -q -l 262144 -o 65536 -S 191110531 -N 100000 -R -W fsx_std_nommap > > +collapse range: 1000 to 3000 > > +do_collapse_range: fallocate: Device or resource busy > > > > which indicates we had an invalidation failure. This is probably > > exposing some other bug, but I haven't had time to look into it yet > > so I don't know. > > > > Yeah, I can reproduce this as well, thanks. I think you're referring to > the xfs_free_file_space() patch (5/5)..? *nod* > FWIW, I don't see the problem > without that patch, so it appears that the full pagecache truncate is > still covering up a problem somewhere. I'll try to dig into it... It's likely that it is leaving a dirty buffer on the page beyond EOF as a result of the truncate zeroing the remainder of the page in memory. If I get a chance I'll look at it this afternoon, as this patchset also seems to be causing a marked increase in the number of fsstress failures due to stray delalloc blocks in files even on 4k block size filesystems (e.g. at unmount). Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Sep 11 17:03:32 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E5F0C7FB1 for ; Thu, 11 Sep 2014 17:03:32 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id D47C88F8037 for ; Thu, 11 Sep 2014 15:03:29 -0700 (PDT) X-ASG-Debug-ID: 1410473003-04cb6c54fea4e920001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id rzL0hRORzdaGsOp0 for ; Thu, 11 Sep 2014 15:03:24 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Am9GAOAbElR5LCtmPGdsb2JhbABfgw2BKoIshQepdQEBAQEBAQaYeIVqAgIBAQGBEBcFAQEBATg3hAQBAQQ6HCMQCAMOCgklDwUlAwcaE4hBvg4BFxiFZIlRB4MvgR0Fhh6WYpkvKy+CTwEBAQ Received: from ppp121-44-43-102.lns20.syd6.internode.on.net (HELO dastard) ([121.44.43.102]) by ipmail06.adl6.internode.on.net with ESMTP; 12 Sep 2014 07:33:19 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XSCST-0003jE-7n; Fri, 12 Sep 2014 08:03:17 +1000 Date: Fri, 12 Sep 2014 08:03:17 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: Re: more pagecache invalidation issues? Message-ID: <20140911220317.GB4322@dastard> X-ASG-Orig-Subj: Re: more pagecache invalidation issues? References: <20140911211443.GA2191@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911211443.GA2191@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1410473003 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9381 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Sep 11, 2014 at 02:14:43PM -0700, Christoph Hellwig wrote: > I just hit this with Linus' tree from a day or two ago when running > xfstests in my 64-bit x86 kvm VM: > > [ 1810.820601] ------------[ cut here ]------------ > [ 1810.821730] kernel BUG at ../fs/xfs/xfs_aops.c:1373! > [ 1810.822881] invalid opcode: 0000 [#1] SMP > [ 1810.823177] Modules linked in: > [ 1810.823177] CPU: 0 PID: 5324 Comm: 4980.fsstress.b Not tainted 3.17.0-rc4+ #266 > [ 1810.823177] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 > [ 1810.823177] task: ffff88004fedc910 ti: ffff88000b340000 task.ti: ffff88000b340000 > [ 1810.823177] RIP: 0010:[] [] __xfs_get_blocks+0x5cb/0x5d0 > [ 1810.823177] RSP: 0018:ffff88000b343998 EFLAGS: 00010202 > [ 1810.823177] RAX: ffff880079ddf580 RBX: 0000000000166000 RCX: ffff88004fedd0f8 > [ 1810.823177] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000246 > [ 1810.823177] RBP: ffff88000b343a38 R08: 0000000000000001 R09: 0000000000000000 > [ 1810.823177] R10: 0000000000000000 R11: 00000000000785b0 R12: ffff88004863d9a0 > [ 1810.823177] R13: ffff88004863d700 R14: ffff88000b343b50 R15: 0000000000000000 > [ 1810.823177] FS: 00007ff4401c6700(0000) GS:ffff88007fc00000(0000) knlGS:0000000000000000 > [ 1810.823177] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 1810.823177] CR2: 00007ff4400c2008 CR3: 000000004fed3000 CR4: 00000000000006f0 > [ 1810.823177] Stack: > [ 1810.823177] ffff88000b343a18 0000000000005000 ffff88000b3439c8 ffff880000000000 > [ 1810.823177] ffff880000000008 0000000000000166 000188004ff2e940 0000000000005000 > [ 1810.823177] ffff88000b343a18 0000000100000202 000000000000015e ffffffffffffffff > [ 1810.823177] Call Trace: > [ 1810.823177] [] xfs_get_blocks_direct+0xf/0x20 > [ 1810.823177] [] __blockdev_direct_IO+0x9ee/0x3340 > [ 1810.823177] [] ? __xfs_get_blocks+0x5d0/0x5d0 > [ 1810.823177] [] xfs_vm_direct_IO+0x130/0x150 > [ 1810.823177] [] ? __xfs_get_blocks+0x5d0/0x5d0 > [ 1810.823177] [] generic_file_read_iter+0x54a/0x610 > [ 1810.823177] [] ? mark_held_locks+0x6a/0x90 > [ 1810.823177] [] xfs_file_read_iter+0xf9/0x2b0 > [ 1810.823177] [] ? might_fault+0x3e/0x90 > [ 1810.823177] [] new_sync_read+0x79/0xb0 > [ 1810.823177] [] vfs_read+0x9b/0x190 > [ 1810.823177] [] SyS_read+0x51/0xc0 > [ 1810.823177] [] system_call_fastpath+0x16/0x1b > > The BUG_ON is this one: > > if (imap.br_startblock == DELAYSTARTBLOCK) { > BUG_ON(direct); > if (create) { > .. That's a symptom of the problem I've been chasing for the past *18 months*. Every time we fix another bunch of bufferhead coherency bugs, I hope that it goes away. It hasn't, and Brian's latest set of collapse_range fixes have made it substantially worse on my test machines. However, Brian has a simply test case we are discussing on #xfs right now that reproduces on of the issues, and again it looks like stray delalloc blocks and/or dirty buffers beyond EOF being the source of the problems. We're slowly fixing the problems we find, but the frequency of that bug being hit is increasing and decreasing as time goes on. But in reality we still haven't found the root cause because it's been so hard to reliably reproduce.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From eflorac@intellique.com Fri Sep 12 02:06:24 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 359E67FB3 for ; Fri, 12 Sep 2014 02:06:24 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 157AC8F8035 for ; Fri, 12 Sep 2014 00:06:21 -0700 (PDT) X-ASG-Debug-ID: 1410505574-04bdf010a09df950001-NocioJ Received: from smtp5-g21.free.fr (smtp5-g21.free.fr [212.27.42.5]) by cuda.sgi.com with ESMTP id 8RS39GFdggPdkA36 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 12 Sep 2014 00:06:16 -0700 (PDT) X-Barracuda-Envelope-From: eflorac@intellique.com X-Barracuda-Apparent-Source-IP: 212.27.42.5 Received: from galadriel.home (unknown [82.235.234.79]) by smtp5-g21.free.fr (Postfix) with ESMTP id 7E5AFD4802D; Fri, 12 Sep 2014 09:06:13 +0200 (CEST) Date: Fri, 12 Sep 2014 09:06:42 +0200 From: Emmanuel Florac To: Greg Freemyer Cc: Leslie Rhorer , Sean Caron , "xfs@oss.sgi.com" Subject: Re: Corrupted files Message-ID: <20140912090642.7f9b11a7@galadriel.home> X-ASG-Orig-Subj: Re: Corrupted files In-Reply-To: References: <540F1B01.3020700@mygrande.net> <20140909220645.GH20518@dastard> <540FA586.9090308@mygrande.net> <540FACAC.3010504@mygrande.net> <20140910163124.3d879432@harpe.intellique.com> Organization: Intellique X-Mailer: Claws Mail 3.10.0 (GTK+ 2.24.20; i486-slackware-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: smtp5-g21.free.fr[212.27.42.5] X-Barracuda-Start-Time: 1410505575 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9394 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Le Thu, 11 Sep 2014 09:24:04 -0400 vous =E9criviez: > Regardless, ignoring the summer of discontent, I find Seagate to be my > preferred drives. Nowadays I only buy HGST drives. The 3 TB aren't as reliable as the 1, 2, 4 and 6 TB, but generally speaking the failure rate is extremely low (an order of a few failures a year among several thousands units). --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From david@fromorbit.com Fri Sep 12 05:02:41 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 341C57FB5 for ; Fri, 12 Sep 2014 05:02:41 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id C4364AC001 for ; Fri, 12 Sep 2014 03:02:37 -0700 (PDT) X-ASG-Debug-ID: 1410516154-04bdf010979e6060001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id Zl90dMyRW0HhIE0U for ; Fri, 12 Sep 2014 03:02:35 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Anc/ADrDElR5LCtmPGdsb2JhbABfgw1TV4IsryEGUQEBHJYlgWWFawQCAYEPFwUBAQEBODeEAwEBAQMBOhwVDgULCAMOBAYJJQ8FJQMHBhQTiDoHvggBFxiFZIQEhHVYB4MvgR0Fhh6PYoI9hEWBYIpKinkCHIFuKy+BBgIeBoEjAQEB Received: from ppp121-44-43-102.lns20.syd6.internode.on.net (HELO dastard) ([121.44.43.102]) by ipmail05.adl6.internode.on.net with ESMTP; 12 Sep 2014 19:32:32 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XSNgU-0005Iu-E6; Fri, 12 Sep 2014 20:02:30 +1000 Date: Fri, 12 Sep 2014 20:02:30 +1000 From: Dave Chinner To: Ben Myers Cc: xfs@oss.sgi.com, tinguely@sgi.com, olaf@sgi.com Subject: Re: [RFC] Unicode/UTF-8 support for XFS Message-ID: <20140912100230.GB4267@dastard> X-ASG-Orig-Subj: Re: [RFC] Unicode/UTF-8 support for XFS References: <20140911203735.GA19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911203735.GA19952@sgi.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1410516154 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9398 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Sep 11, 2014 at 03:37:35PM -0500, Ben Myers wrote: > Hi, > > I'm posting this RFC on Olaf's behalf, as he is busy with other projects. Ok, but I'd prefer to have Olaf discuss the finer points rather than have to play chinese whispers through you. :/ > First is a series of kernel patches, then a series of patches for > xfsprogs, and then a test. Seeing as this is something out of the blue (i.e. nobody has made a mention of this functionality in the past couple of years), I think we need to look at design and architecture first before spending any time commenting on the code. > Note that I have removed the unicode database files prior to posting due > to their large size. There are instructions on how to download them in > the relevant commit headers. Which leads to an interesting issue: these files do not have cryptographically verifiable signatures. How can I trust them? I can't even access unicode.org via https, so I can't even be certain that I'm downloading from the site I think I'm downloading from.... > Here are some notes of introduction from Olaf: > > ----------------------------------------------------------------------------- > Unicode/UTF-8 support for XFS > > So we had a customer request proper unicode support... > > Design notes. > > XFS uses byte strings for filenames, so UTF-8 is the expected format for > unicode filenames. This does raise the question what criteria a byte string > must meet to be UTF-8. We settled on the following: > - Valid unicode code points are 0..0x10FFFF, except that > - The surrogates 0xD800..0xDFFF are not valid code points, and > - Valid UTF-8 must be a shortest encoding of a valid unicode code point. > > In addition, U+0 (ASCII NUL, '\0') is used to terminate byte strings (and > is itself not part of the string). Moreover strings may be length-limited > in addition to being NUL-terminated (there is no such thing as an embedded > NUL in a length-limited string). > > Based on feedback on the earlier patches for unicode/UTF-8 support, we References, please. I don't recall any series discussion on this topic since Barry posted the unicode-CI patches back in 2008, and I doubt anyone remembers the details of those discussions.... > decided that a filename that does not match the above criteria should be > treated as a binary blob, as opposed to being rejected. To stress: if any > part of the string isn't valid UTF-8, then the entire string is treated > as a binary blob. This matters once normalization is considered. So we accept invalid unicode in filenames, but only after failing to parse them? Isn't this a potential vector for exploiting weaknesses in application filename handling? i.e. unprivileged user writes specially crafted invalid unicode filename to disk, setuid program tries to parse it, invalid sequence triggers a buffer overflow bug in setuid parser? > When comparing unicode strings for equality, normalization comes into play: > we must compare the normalized forms of strings, not just the raw sequences > of bytes. There are a number of defined normalization forms for unicode. > We decided on a variant of NFKD we call NFKDI. NFD was chosed over NFC, > because calculating NFC requires calculating NFD first, followed by an > additional step. NFKD was chosen over NFD because this makes filenames > that ought to be equal compare as equal. But are they really equal? Choosing *compatibility* decomposition over *canonical* decomposition means that compound characters and formatting distinctions don't affect the hash. i.e. "of'fi'ce", "o'ffi'ce" and "office" all hash and compare as the same name, but then they get stored on disk unnormalised. So they are the "same" in memory, but very different on disk. I note that the unicode spec says this for normalised forms (11.1): "A normalized string is guaranteed to be stable; that is, once normalized, a string is normalized according to all future versions of Unicode." So if we store normalised strings on disk, they are guaranteed to be compatible with all future versions of unicode and anything that goes to use them. So why wouldn't we store normalised forms on disk? As another point to note and discuss, from the unicode standard: "Normalization Forms KC and KD must not be blindly applied to arbitrary text. [...] It is best to think of these Normalization Forms as being like uppercase or lowercase mappings: useful in certain contexts for identifying core meanings, but also performing modifications to the text that may not always be appropriate." I'd consider file names to be mostly "arbitrary text" - we currently treat them as opaque blobs and don't try to interpret them (apart from '/' delimiters) and so they can contain arbitrary text.... > My favorite example is the ways > "office" can be spelled, when "fi" or "ffi" ligatures are used. NFKDI adds > one more step of NFKD, in that it eliminates the code points that have the > Default_Ignorable_Code_Point property from the comparison. These code > points are as a rule invisible, but might (or might not) be pulled in when > you copy/paste a string to be used as a filename. An example of these is > U+00AD SOFT HYPHEN, a code point that only shows up if a word is split > across lines. This extension does not appear to be specified by the unicode standard - this seems like a dangerous thing to do when considering compatibility with future unicode standards - we are not in the business of extend-and-embrace here. Anyway, what happens if a user actually wants a filename with a Default_Ignorable_Code_Point character in it? IMO, if cut-n-paste modifies the string being cut-n-pasted, then that's a bug in the cut-n-paste application. I'd much prefer we use a normalisation type that is defined by the standard than to invent a new one to work around problems that may not even exist. > If a filename is considered to be binary blob, comparison is based on a > simple binary match. Normalization does not apply to any part of a blob. See above: if we have unicode enabled, I think that we should reject invalid unicode in filenames at normalisation time. > The code uses ("leverages", in corp-speak) the existing infrastructure for > case-insensitive filenames. Like the CI code, the name used to create a > file is stored on disk, and returned in a lookup. When comparing filenames > the normalized forms of the names being compared are generated on the fly > from the non-normalized forms stored on disk. Again, why not store normalised forms on disk and avoid the need to generate normalised forms for dirents being read from disk every time they must be compared? > If the borgbit (the bit enabling legacy ASCII-based CI) is set in the > superblock, then case folding is added into the mix. This normalization > form we call NFKDICF. It allows for the creation of case-insensitive > filesystems with UTF-8 support. Different languages have different case folding rules e.g. the upper case character might be the same, but the lower case character is different (or vice versa). Where are the language specific case folding tables being stored? And speaking of language support, how does this interact with the kernel NLS subsystem? > ----------------------------------------------------------------------------- > Implementation notes. > > Strings are normalized using a trie that stores the relevant information. > The trie itself is part of the XFS module, and about 250kB in size. The > trie is not checked in: instead we add the source files from the Unicode > Character Database and a program that creates the header containing the > trie. This is rather unappealing. Distros would have to take this code size penalty if they decide one user needs that support. The other millions of users pay that cost even if they don't want it. And then there's validation - how are we supposed to validate that a 250k binary blob is correct and free of issues on every compiler and architecture that the kernel is built on? > The key for a lookup in the trie is a UTF-8 sequence. Each valid UTF-8 > sequence leads to a leaf. No invalid sequence does. This means that trie > lookups can be used to validate UTF-8 sequences, which why there is no > specialized code for the same purpose. > > The trie contains information for the version of unicode in which each > code point was defined. This matters because non-normalized strings are > stored on disk, and newer versions of unicode may introduce new normalized > forms. Ideally, the version of unicode used by the filesystem is stored in > the filesystem. > > The trie also accounts for corrections made in the past to normalizations. > This has little value today, because any newly created filesystem would be > using unicode version 7.0.0. It is included in order to show, not tell, > that such corrections can be handled if they are added in future revisions. And so back to the stability of normalised forms: if the normalised forms are stable and the trie encodes the version of codepoints, then the data in the leaves of the trie itself must be stable. i.e. even for future versions of the standards, all the leaves that are there now will be there in the future. What is valid unicode now will remain valid unicode. And given that, why do we need to carry the trie around in the compiled kernel? We have a perfectly good mechanism for storing large chunks of long-term stable metadata that we can access easily: in files. IOWs, the trie is really a property of the filesystem, not the kernel or userspace tools. If we ever want to update to a new version of unicode, we can compile a new trie and have mkfs write that into new filesystems, and maybe add an xfs-reapir function that allows migration to a new trie on an existing filesystem. But if we carry it in the kernel then there will be interesting issues with iupgrade/downgrade compatibility with new tries. Better to prevent those simply by havingthe trie be owned by the filesystem, not the kernel. Hence I think the trie should probably be stored on disk in the filesystem. It gets calculated and written by mkfs into file attached to the superblock, and the only code that needs to go into the kernel is the code needed to read it into memory and walk it. That means we don't need 3,000 lines of nasty trie generation code in the kernel, we don't bloat the kernel unnecessarily with abinary blob, we don't need to build code with data from unverifiable sources directly into the kernel, we can support different versions of unicode easily, and so on. > The algorithm used to calculate the sequences of bytes for the normalized > form of a UTF-8 string is tricky. The core is found in utf8byte(), with an > explanation in the preceeding comment. Precisely my point - it's nasty, tricky code, and getting it wrong is a potential security vulnerability. Exactly how are we expected to review >3,000 lines of unicode/utf-8 minutae without having to become unicode encoding experts? Cheers, Dave. -- Dave Chinner david@fromorbit.com From olaf@sgi.com Fri Sep 12 06:55:42 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 56A127FB7 for ; Fri, 12 Sep 2014 06:55:42 -0500 (CDT) Received: from xmail.sgi.com (pv-excas1-dc21.corp.sgi.com [137.38.106.7]) by relay2.corp.sgi.com (Postfix) with ESMTP id 3463930404E; Fri, 12 Sep 2014 04:55:39 -0700 (PDT) Received: from [144.253.208.66] (144.253.208.66) by xmail.sgi.com (137.38.106.6) with Microsoft SMTP Server (TLS) id 14.3.195.1; Fri, 12 Sep 2014 06:55:38 -0500 Message-ID: <5412DF37.9030005@sgi.com> Date: Fri, 12 Sep 2014 13:55:35 +0200 From: Olaf Weber Organization: SGI User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0 MIME-Version: 1.0 To: Dave Chinner , Ben Myers CC: , Subject: Re: [RFC] Unicode/UTF-8 support for XFS References: <20140911203735.GA19952@sgi.com> <20140912100230.GB4267@dastard> In-Reply-To: <20140912100230.GB4267@dastard> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [144.253.208.66] On 12-09-14 12:02, Dave Chinner wrote: > On Thu, Sep 11, 2014 at 03:37:35PM -0500, Ben Myers wrote: >> Hi, >> >> I'm posting this RFC on Olaf's behalf, as he is busy with other projects. > > Ok, but I'd prefer to have Olaf discuss the finer points rather than > have to play chinese whispers through you. :/ > I am on this mailing list, and I am trying to follow along, but I do have other calls on my time. >> First is a series of kernel patches, then a series of patches for >> xfsprogs, and then a test. > > Seeing as this is something out of the blue (i.e. nobody has made a > mention of this functionality in the past couple of years), I think > we need to look at design and architecture first before spending any > time commenting on the code. > >> Note that I have removed the unicode database files prior to posting due >> to their large size. There are instructions on how to download them in >> the relevant commit headers. > > Which leads to an interesting issue: these files do not have > cryptographically verifiable signatures. How can I trust them? I > can't even access unicode.org via https, so I can't even be certain > that I'm downloading from the site I think I'm downloading from.... As Ben noted, the reason to not include them in these emails is their size: $ wc fs/xfs/support/ucd/* 1273 12288 68009 fs/xfs/support/ucd/CaseFolding-7.0.0.txt 1470 14166 98263 fs/xfs/support/ucd/DerivedAge-7.0.0.txt 2368 22320 145072 fs/xfs/support/ucd/DerivedCombiningClass-7.0.0.txt 10794 123871 899859 fs/xfs/support/ucd/DerivedCoreProperties-7.0.0.txt 50 318 2040 fs/xfs/support/ucd/NormalizationCorrections-7.0.0.txt 18635 332441 2457187 fs/xfs/support/ucd/NormalizationTest-7.0.0.txt 33 86 1364 fs/xfs/support/ucd/README 27268 120686 1509570 fs/xfs/support/ucd/UnicodeData-7.0.0.txt 61891 626176 5181364 total As for your remarks about cryptographic signatures, I'm not sure I see your point there. Just to be clear: the idea is to check the files in, as opposed to having to download them from unicode.org prior to compiling XFS. >> Here are some notes of introduction from Olaf: >> >> ----------------------------------------------------------------------------- >> Unicode/UTF-8 support for XFS >> >> So we had a customer request proper unicode support... >> >> Design notes. >> >> XFS uses byte strings for filenames, so UTF-8 is the expected format for >> unicode filenames. This does raise the question what criteria a byte string >> must meet to be UTF-8. We settled on the following: >> - Valid unicode code points are 0..0x10FFFF, except that >> - The surrogates 0xD800..0xDFFF are not valid code points, and >> - Valid UTF-8 must be a shortest encoding of a valid unicode code point. >> >> In addition, U+0 (ASCII NUL, '\0') is used to terminate byte strings (and >> is itself not part of the string). Moreover strings may be length-limited >> in addition to being NUL-terminated (there is no such thing as an embedded >> NUL in a length-limited string). >> >> Based on feedback on the earlier patches for unicode/UTF-8 support, we > > References, please. I don't recall any series discussion on this > topic since Barry posted the unicode-CI patches back in 2008, and I > doubt anyone remembers the details of those discussions.... I looked up those discussions in the archives. For example, here's Christoph about rejecting filenames if they're not well-formed unicode. http://marc.info/?l=linux-fsdevel&m=120876935526856&w=2 And Jamie Lokier making a similar point: http://oss.sgi.com/archives/xfs/2008-04/msg01263.html >> decided that a filename that does not match the above criteria should be >> treated as a binary blob, as opposed to being rejected. To stress: if any >> part of the string isn't valid UTF-8, then the entire string is treated >> as a binary blob. This matters once normalization is considered. > > So we accept invalid unicode in filenames, but only after failing to > parse them? Isn't this a potential vector for exploiting weaknesses > in application filename handling? i.e. unprivileged user writes > specially crafted invalid unicode filename to disk, setuid program > tries to parse it, invalid sequence triggers a buffer overflow bug > in setuid parser? > Yes, this means that userspace must be capable of handling filenames that are not well-formed UTF-8 and a whole slew of other edge cases. Same as today really. >> When comparing unicode strings for equality, normalization comes into play: >> we must compare the normalized forms of strings, not just the raw sequences >> of bytes. There are a number of defined normalization forms for unicode. >> We decided on a variant of NFKD we call NFKDI. NFD was chosed over NFC, >> because calculating NFC requires calculating NFD first, followed by an >> additional step. NFKD was chosen over NFD because this makes filenames >> that ought to be equal compare as equal. > > But are they really equal? > > Choosing *compatibility* decomposition over *canonical* > decomposition means that compound characters and formatting > distinctions don't affect the hash. i.e. "of'fi'ce", "o'ffi'ce" and > "office" all hash and compare as the same name, but then they get > stored on disk unnormalised. So they are the "same" in memory, but > very different on disk. > > I note that the unicode spec says this for normalised forms > (11.1): > > "A normalized string is guaranteed to be stable; that is, once > normalized, a string is normalized according to all future versions > of Unicode." Provided no unassigned codepoints are present in that string. > So if we store normalised strings on disk, they are guaranteed to > be compatible with all future versions of unicode and anything that > goes to use them. So why wouldn't we store normalised forms on disk? > Because, based what I read around the web, I expect a good deal of resistance to the idea that a filesystem will on a lookup of a file you just created return a name that is different-but-equivalent. Think of it as the equivalent of being case-preserving for a case-insensitive filesystem. An alternative would be to store each filename twice: both raw and normalized forms. > As another point to note and discuss, from the unicode standard: > > "Normalization Forms KC and KD must not be blindly applied to > arbitrary text. [...] It is best to think of these Normalization > Forms as being like uppercase or lowercase mappings: useful in > certain contexts for identifying core meanings, but also performing > modifications to the text that may not always be appropriate." > > I'd consider file names to be mostly "arbitrary text" - we currently > treat them as opaque blobs and don't try to interpret them (apart > from '/' delimiters) and so they can contain arbitrary text.... > My reading of this part of the unicode standard is that applying a compatibility normalization results in strings that materially differ from the originals, and no full equivalent of the original can be reconstructed from the normalized form. This makes it improper for a word processor to normalize to NFKC or NFKD before saving a file. For the same reason, it would not be proper to store the NFKD version of a filename on disk without some method to retrieve (an equivalent of) the original. >> My favorite example is the ways >> "office" can be spelled, when "fi" or "ffi" ligatures are used. NFKDI adds >> one more step of NFKD, in that it eliminates the code points that have the >> Default_Ignorable_Code_Point property from the comparison. These code >> points are as a rule invisible, but might (or might not) be pulled in when >> you copy/paste a string to be used as a filename. An example of these is >> U+00AD SOFT HYPHEN, a code point that only shows up if a word is split >> across lines. > > This extension does not appear to be specified by the unicode > standard - this seems like a dangerous thing to do when considering > compatibility with future unicode standards - we are not in the > business of extend-and-embrace here. Anyway, what happens if a > user actually wants a filename with a Default_Ignorable_Code_Point > character in it? Such a filename can be created, and since the raw form of the name is stored on disk, when the filename is read back the Default_Ignorable_Code_Point will still be there. It just doesn't count when comparing names for equality. > IMO, if cut-n-paste modifies the string being cut-n-pasted, then > that's a bug in the cut-n-paste application. I'd much prefer we use > a normalisation type that is defined by the standard than to invent > a new one to work around problems that may not even exist. > >> If a filename is considered to be binary blob, comparison is based on a >> simple binary match. Normalization does not apply to any part of a blob. > > See above: if we have unicode enabled, I think that we should reject > invalid unicode in filenames at normalisation time. > That was my original intent, which I abandoned based on the emails linked to above. >> The code uses ("leverages", in corp-speak) the existing infrastructure for >> case-insensitive filenames. Like the CI code, the name used to create a >> file is stored on disk, and returned in a lookup. When comparing filenames >> the normalized forms of the names being compared are generated on the fly >> from the non-normalized forms stored on disk. > > Again, why not store normalised forms on disk and avoid the need to > generate normalised forms for dirents being read from disk every > time they must be compared? > >> If the borgbit (the bit enabling legacy ASCII-based CI) is set in the >> superblock, then case folding is added into the mix. This normalization >> form we call NFKDICF. It allows for the creation of case-insensitive >> filesystems with UTF-8 support. > > Different languages have different case folding rules e.g. the upper > case character might be the same, but the lower case character is > different (or vice versa). Where are the language specific case > folding tables being stored? And speaking of language support, how > does this interact with the kernel NLS subsystem? I use a full case fold as per CaseFolding.txt to obtain a result that is consistent and (in my opinion) good enough. Since XFS has no nls mount options, there is no interaction with the NLS subsystem. >> ----------------------------------------------------------------------------- >> Implementation notes. >> >> Strings are normalized using a trie that stores the relevant information. >> The trie itself is part of the XFS module, and about 250kB in size. The >> trie is not checked in: instead we add the source files from the Unicode >> Character Database and a program that creates the header containing the >> trie. > > This is rather unappealing. Distros would have to take this code > size penalty if they decide one user needs that support. The other > millions of users pay that cost even if they don't want it. And > then there's validation - how are we supposed to validate that a > 250k binary blob is correct and free of issues on every compiler and > architecture that the kernel is built on? If your concern is that the generator might create bad blobs on some architectures, then there are ways around that: checksums, checking in a reference blob, or maybe something else. As for size in general, looking at the NLS support I do not consider it to be excessively big (as in, it is a bit less than 2 times the size of the largest NLS module). Obviously opinions can differ on this. >> The key for a lookup in the trie is a UTF-8 sequence. Each valid UTF-8 >> sequence leads to a leaf. No invalid sequence does. This means that trie >> lookups can be used to validate UTF-8 sequences, which why there is no >> specialized code for the same purpose. >> >> The trie contains information for the version of unicode in which each >> code point was defined. This matters because non-normalized strings are >> stored on disk, and newer versions of unicode may introduce new normalized >> forms. Ideally, the version of unicode used by the filesystem is stored in >> the filesystem. >> >> The trie also accounts for corrections made in the past to normalizations. >> This has little value today, because any newly created filesystem would be >> using unicode version 7.0.0. It is included in order to show, not tell, >> that such corrections can be handled if they are added in future revisions. > > And so back to the stability of normalised forms: if the normalised > forms are stable and the trie encodes the version of codepoints, > then the data in the leaves of the trie itself must be stable. i.e. > even for future versions of the standards, all the leaves that are > there now will be there in the future. What is valid unicode now > will remain valid unicode. The set of valid unicode code points is known and stable: 0..0x10FFFF minus 0xD800..0xDFFF. However, the set of assigned code points grows with each revision of the unicode standard. Note that there is an explicit limitation on the stability of normalized strings: they are stable if, and only if, no unassigned codepoints are present in the string. > And given that, why do we need to carry the trie around in the > compiled kernel? We have a perfectly good mechanism for storing > large chunks of long-term stable metadata that we can access easily: > in files. > > IOWs, the trie is really a property of the filesystem, not the > kernel or userspace tools. If we ever want to update to a new > version of unicode, we can compile a new trie and have mkfs write > that into new filesystems, and maybe add an xfs-reapir function that > allows migration to a new trie on an existing filesystem. But if we > carry it in the kernel then there will be interesting issues with > iupgrade/downgrade compatibility with new tries. Better to prevent > those simply by havingthe trie be owned by the filesystem, not the > kernel. > > Hence I think the trie should probably be stored on disk in the > filesystem. It gets calculated and written by mkfs into file > attached to the superblock, and the only code that needs to go into > the kernel is the code needed to read it into memory and walk it. > > That means we don't need 3,000 lines of nasty trie generation code > in the kernel, we don't bloat the kernel unnecessarily with abinary > blob, we don't need to build code with data from unverifiable > sources directly into the kernel, we can support different versions > of unicode easily, and so on. Storing the trie in the filesystem is certainly an option, as is making XFS UTF-8 support a config option. >> The algorithm used to calculate the sequences of bytes for the normalized >> form of a UTF-8 string is tricky. The core is found in utf8byte(), with an >> explanation in the preceeding comment. > > Precisely my point - it's nasty, tricky code, and getting it wrong > is a potential security vulnerability. Exactly how are we expected > to review >3,000 lines of unicode/utf-8 minutae without having to > become unicode encoding experts? The bits and pieces that are specific to unicode are smaller than that, much of the complication of the generator is due to the work required to reduce the size of the trie. The generator is included because we felt that offering a large binary blob for checkin would also run into resistance. Olaf -- Olaf Weber SGI Phone: +31(0)30-6696796 Veldzigt 2b Fax: +31(0)30-6696799 Technical Lead 3454 PW de Meern Vnet: 955-6796 Storage Software The Netherlands Email: olaf@sgi.com From zimer@zimer.nazwa.pl Fri Sep 12 09:42:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=2.0 required=5.0 tests=HK_SCAM_N4,SUBJ_ALL_CAPS, T_FILL_THIS_FORM_SHORT autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 313F17FB9 for ; Fri, 12 Sep 2014 09:42:39 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id C40F9AC002 for ; Fri, 12 Sep 2014 07:42:35 -0700 (PDT) X-ASG-Debug-ID: 1410532953-04bdf010979f2c40001-NocioJ Received: from abq116.rev.netart.pl (abq116.rev.netart.pl [77.55.42.116]) by cuda.sgi.com with ESMTP id VB7GiR1AtpPUIv28 for ; Fri, 12 Sep 2014 07:42:34 -0700 (PDT) X-Barracuda-Envelope-From: zimer@zimer.nazwa.pl X-Barracuda-Apparent-Source-IP: 77.55.42.116 Received: from zimer.nazwa.pl (unknown [85.128.142.49]) by zimer.nazwa.pl (Postfix) with ESMTP id 6C27B115ABEF for ; Fri, 12 Sep 2014 16:42:31 +0200 (CEST) Date: Fri, 12 Sep 2014 16:42:31 +0200 To: xfs@oss.sgi.com From: =?UTF-8?Q?Gerald_Dean?= Subject: =?UTF-8?Q?PART_TIME_OFFER_=21?= Message-ID: X-ASG-Orig-Subj: =?UTF-8?Q?PART_TIME_OFFER_=21?= X-Priority: 1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="us-ascii" X-HTTP-Posting-URI: http://photodiploma.com:80/mel.php X-HTTP-Client: 24.117.20.138 X-Barracuda-Connect: abq116.rev.netart.pl[77.55.42.116] X-Barracuda-Start-Time: 1410532953 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 1.64 X-Barracuda-Spam-Status: No, SCORE=1.64 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=SUBJ_ALL_CAPS, SUBJ_ALL_CAPS_2 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9404 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 SUBJ_ALL_CAPS Subject is all capitals 1.62 SUBJ_ALL_CAPS_2 SUBJ_ALL_CAPS_2 Hello,=20 Our Company is looking for an Organized, Motivated, and Proactive individua= l to fill the Personal Assistant position. 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Thank you,=20 Nice regards, Gerald Dean From sandeen@sandeen.net Fri Sep 12 11:22:14 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 998887F3F for ; Fri, 12 Sep 2014 11:22:14 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 7912530406A for ; Fri, 12 Sep 2014 09:22:10 -0700 (PDT) X-ASG-Debug-ID: 1410538929-04cb6c5500a7c000001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id XjBhZXmsZBDPYAEX for ; Fri, 12 Sep 2014 09:22:09 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 20B276372C76; Fri, 12 Sep 2014 11:22:09 -0500 (CDT) Message-ID: <54131DB9.9010307@sandeen.net> Date: Fri, 12 Sep 2014 11:22:17 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Eric Sandeen , xfs-oss Subject: Re: [PATCH V2] xfs_io: add mremap command References: <54111610.4080604@redhat.com> <5411171F.6010704@sandeen.net> X-ASG-Orig-Subj: Re: [PATCH V2] xfs_io: add mremap command In-Reply-To: <5411171F.6010704@sandeen.net> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410538929 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9407 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/10/14 10:29 PM, Eric Sandeen wrote: > This adds a simple mremap command to xfs_io. > > It does not take a start address; it uses the existing > start address, so the sized passed will be the new total > size of the mapping. > > Signed-off-by: Eric Sandeen > --- > +int > +mremap_f( > + int argc, > + char **argv) > +{ > + ssize_t new_length; > + void *new_addr; > + int flags = 0; > + int c; > + size_t blocksize, sectsize; > + Crap, and I just realized my mailer has started swapping tabs for spaces; my last several patches are probably corrupted this way. Grumble. -Eric From sandeen@sandeen.net Fri Sep 12 11:54:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 66B227FA5 for ; Fri, 12 Sep 2014 11:54:39 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 556978F8037 for ; Fri, 12 Sep 2014 09:54:35 -0700 (PDT) X-ASG-Debug-ID: 1410540874-04cb6c54fda7dcf0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id MNvuR7lnZVOAsteI for ; Fri, 12 Sep 2014 09:54:34 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 24EF06372C76; Fri, 12 Sep 2014 11:54:34 -0500 (CDT) Message-ID: <54132553.9090202@sandeen.net> Date: Fri, 12 Sep 2014 11:54:43 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Eric Sandeen , xfs-oss Subject: [PATCH V3] xfs_io: add mremap command References: <54111610.4080604@redhat.com> X-ASG-Orig-Subj: [PATCH V3] xfs_io: add mremap command In-Reply-To: <54111610.4080604@redhat.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410540874 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9408 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- This adds a simple mremap command to xfs_io. It does not take a start address; it uses the existing start address, so the sized passed will be the new total size of the mapping. Signed-off-by: Eric Sandeen --- V2: fix stray line in help. - Why was it only visible after I sent V1... :/ V3: Unmangle whitespace, yay me! diff --git a/io/mmap.c b/io/mmap.c index ea7498f..565a541 100644 --- a/io/mmap.c +++ b/io/mmap.c @@ -29,6 +29,7 @@ static cmdinfo_t mread_cmd; static cmdinfo_t msync_cmd; static cmdinfo_t munmap_cmd; static cmdinfo_t mwrite_cmd; +static cmdinfo_t mremap_cmd; mmap_region_t *maptable; int mapcount; @@ -574,6 +575,66 @@ mwrite_f( return 0; } +static void +mremap_help(void) +{ + printf(_( +"\n" +" resizes the current memory mapping\n" +"\n" +" Examples:\n" +" 'mremap 8192' - resizes the current mapping to 8192 bytes.\n" +"\n" +" Resizes the mappping, growing or shrinking from the current size.\n" +" The default stored value is 'X', repeated to fill the range specified.\n" +" -f -- use the MREMAP_FIXED flag\n" +" -m -- use the MREMAP_MAYMOVE flag\n" +"\n")); +} + +int +mremap_f( + int argc, + char **argv) +{ + ssize_t new_length; + void *new_addr; + int flags = 0; + int c; + size_t blocksize, sectsize; + + while ((c = getopt(argc, argv, "fm")) != EOF) { + switch (c) { + case 'f': + flags = MREMAP_FIXED|MREMAP_MAYMOVE; + break; + case 'm': + flags = MREMAP_MAYMOVE; + break; + default: + return command_usage(&mremap_cmd); + } + } + + init_cvtnum(&blocksize, §size); + new_length = cvtnum(blocksize, sectsize, argv[optind]); + if (new_length < 0) { + printf(_("non-numeric offset argument -- %s\n"), + argv[optind]); + return 0; + } + + new_addr = mremap(mapping->addr, mapping->length, new_length, flags); + if (new_addr == MAP_FAILED) + perror("mremap"); + else { + mapping->addr = new_addr; + mapping->length = new_length; + } + + return 0; +} + void mmap_init(void) { @@ -628,9 +689,21 @@ mmap_init(void) _("writes data into a region in the current memory mapping"); mwrite_cmd.help = mwrite_help; + mremap_cmd.name = "mremap"; + mremap_cmd.altname = "mrm"; + mremap_cmd.cfunc = mremap_f; + mremap_cmd.argmin = 1; + mremap_cmd.argmax = 2; + mremap_cmd.flags = CMD_NOFILE_OK | CMD_FOREIGN_OK; + mremap_cmd.args = _("[-m|-f] newsize"); + mremap_cmd.oneline = + _("alters the size of the current memory mapping"); + mremap_cmd.help = mremap_help; + add_command(&mmap_cmd); add_command(&mread_cmd); add_command(&msync_cmd); add_command(&munmap_cmd); add_command(&mwrite_cmd); + add_command(&mremap_cmd); } diff --git a/man/man8/xfs_io.8 b/man/man8/xfs_io.8 index e1a3e1a..e40fbf9 100644 --- a/man/man8/xfs_io.8 +++ b/man/man8/xfs_io.8 @@ -501,6 +501,20 @@ See the .B mmap command. .TP +.BI "mremap [ \-f ] [ \-m ] " new_length +Changes the current mapping size to +.IR new_length . +Whether the mapping may be moved is controlled by the flags passed; +MREMAP_FIXED +.RB ( \-f ), +or MREMAP_MAYMOVE +.RB ( \-m ). +.TP +.B mrm +See the +.B mremap +command. +.TP .B munmap Unmaps the current memory mapping. .TP From jeffpc@josefsipek.net Fri Sep 12 12:45:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3B0D57FA7 for ; Fri, 12 Sep 2014 12:45:38 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 296C0304051 for ; Fri, 12 Sep 2014 10:45:35 -0700 (PDT) X-ASG-Debug-ID: 1410543931-04cb6c54fda80c30001-NocioJ Received: from josefsipek.net (josefsipek.net [71.174.113.7]) by cuda.sgi.com with ESMTP id vG1GEfsYKKB8hEyD for ; Fri, 12 Sep 2014 10:45:31 -0700 (PDT) X-Barracuda-Envelope-From: jeffpc@josefsipek.net X-Barracuda-Apparent-Source-IP: 71.174.113.7 Received: from meili (ma.nexenta.com [50.201.33.114]) by josefsipek.net (Postfix) with ESMTPSA id 77E3455654; Fri, 12 Sep 2014 13:45:30 -0400 (EDT) Date: Fri, 12 Sep 2014 13:45:39 -0400 From: Josef 'Jeff' Sipek To: Dave Chinner Cc: Ben Myers , tinguely@sgi.com, olaf@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC] Unicode/UTF-8 support for XFS Message-ID: <20140912174538.GD978@meili> X-ASG-Orig-Subj: Re: [RFC] Unicode/UTF-8 support for XFS References: <20140911203735.GA19952@sgi.com> <20140912100230.GB4267@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140912100230.GB4267@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: josefsipek.net[71.174.113.7] X-Barracuda-Start-Time: 1410543931 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9409 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Sep 12, 2014 at 08:02:30PM +1000, Dave Chinner wrote: > On Thu, Sep 11, 2014 at 03:37:35PM -0500, Ben Myers wrote: ... > > When comparing unicode strings for equality, normalization comes into play: > > we must compare the normalized forms of strings, not just the raw sequences > > of bytes. There are a number of defined normalization forms for unicode. > > We decided on a variant of NFKD we call NFKDI. NFD was chosed over NFC, > > because calculating NFC requires calculating NFD first, followed by an > > additional step. NFKD was chosen over NFD because this makes filenames > > that ought to be equal compare as equal. > > But are they really equal? > > Choosing *compatibility* decomposition over *canonical* > decomposition means that compound characters and formatting > distinctions don't affect the hash. i.e. "of'fi'ce", "o'ffi'ce" and > "office" all hash and compare as the same name, but then they get > stored on disk unnormalised. So they are the "same" in memory, but > very different on disk. > > I note that the unicode spec says this for normalised forms > (11.1): > > "A normalized string is guaranteed to be stable; that is, once > normalized, a string is normalized according to all future versions > of Unicode." > > So if we store normalised strings on disk, they are guaranteed to > be compatible with all future versions of unicode and anything that > goes to use them. So why wouldn't we store normalised forms on disk? I've had a very similar discussion about normalization in ZFS. Sadly, I can't find where it happened so I can't point you to it. One interesting point that I remember is that storing the original form may be less surprising to an application. Specifically, the name it reads back is the same it supplied during the creation. (Granted, if the file already exists, the application will read back the new form.) Just FWIW. Jeff. -- Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. - Albert Einstein From sandeen@sandeen.net Fri Sep 12 14:29:49 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id A25747FA9 for ; Fri, 12 Sep 2014 14:29:49 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 81D32304062 for ; Fri, 12 Sep 2014 12:29:46 -0700 (PDT) X-ASG-Debug-ID: 1410550185-04cbb05487d58650001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id vYUU3YmlWHjmn1uy for ; Fri, 12 Sep 2014 12:29:45 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id D73D96079775; Fri, 12 Sep 2014 14:29:44 -0500 (CDT) Message-ID: <541349B1.1070007@sandeen.net> Date: Fri, 12 Sep 2014 14:29:53 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Eric Sandeen , xfs-oss CC: Boris Ranto Subject: Re: [PATCH] xfs: test for shut down fs in xfs_dir_fsync() References: <535E8344.2070209@redhat.com> X-ASG-Orig-Subj: Re: [PATCH] xfs: test for shut down fs in xfs_dir_fsync() In-Reply-To: <535E8344.2070209@redhat.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410550185 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9411 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 4/28/14 11:35 AM, Eric Sandeen wrote: > Similar to xfs_file_fsync(), I think xfs_dir_fsync() needs > to test for a shut down fs, lest we go down paths we'll > never be able to complete; Boris reported that during some > stress tests he had threads stuck in xlog_cil_force_lsn > via xfs_dir_fsync(). (re-ping) So Dave, you fixed this with: So, you did solve the problem properly I guess, in commit ac983517ec5941da0c58cacdbad10a231dc4e001 Author: Dave Chinner Date: Wed May 7 08:05:50 2014 +1000 xfs: don't sleep in xlog_cil_force_lsn on shutdown But should my patch still go in, if only to be consistent with file_fsync() paths? -Eric From bfoster@redhat.com Fri Sep 12 14:51:35 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 38DCF7FAF for ; Fri, 12 Sep 2014 14:51:35 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id AF53CAC006 for ; Fri, 12 Sep 2014 12:51:34 -0700 (PDT) X-ASG-Debug-ID: 1410551492-04cbb05487d595b0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id iimjezdL82A1xq6L (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 12 Sep 2014 12:51:33 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8CJpVrs030047 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 12 Sep 2014 15:51:31 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8CJpU5b021053; Fri, 12 Sep 2014 15:51:31 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 470051256F8; Fri, 12 Sep 2014 15:51:29 -0400 (EDT) Date: Fri, 12 Sep 2014 15:51:29 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH v2 0/5] clean up collapse range and handle post-eof delalloc Message-ID: <20140912195128.GA42029@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH v2 0/5] clean up collapse range and handle post-eof delalloc References: <1410355231-50495-1-git-send-email-bfoster@redhat.com> <20140911044243.GA10111@dastard> <20140911152012.GB54638@bfoster.bfoster> <20140911211915.GA4322@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140911211915.GA4322@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410551493 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Sep 12, 2014 at 07:19:15AM +1000, Dave Chinner wrote: > On Thu, Sep 11, 2014 at 11:20:13AM -0400, Brian Foster wrote: > > On Thu, Sep 11, 2014 at 02:42:43PM +1000, Dave Chinner wrote: > > > On Wed, Sep 10, 2014 at 09:20:26AM -0400, Brian Foster wrote: > > > > Hi all, > > > > > > > > Here's v2 of the collapse clean up. We refactor a bit more via the > > > > insertion of patch 3, otherwise it's similar to v1. This will see some > > > > continued testing, but it survived ~500m fsx operations overnight. > > > > > > > > Brian > > > > > > I'm not sure about the invalidation patch now. On a 1k block size > > > filesystem, generic/127 fails with: > > > > > > +ltp/fsx -q -l 262144 -o 65536 -S 191110531 -N 100000 -R -W fsx_std_nommap > > > +collapse range: 1000 to 3000 > > > +do_collapse_range: fallocate: Device or resource busy > > > > > > which indicates we had an invalidation failure. This is probably > > > exposing some other bug, but I haven't had time to look into it yet > > > so I don't know. > > > > > > > Yeah, I can reproduce this as well, thanks. I think you're referring to > > the xfs_free_file_space() patch (5/5)..? > > *nod* > > > FWIW, I don't see the problem > > without that patch, so it appears that the full pagecache truncate is > > still covering up a problem somewhere. I'll try to dig into it... > > It's likely that it is leaving a dirty buffer on the page beyond EOF > as a result of the truncate zeroing the remainder of the page in > memory. > > If I get a chance I'll look at it this afternoon, as this patchset > also seems to be causing a marked increase in the number of fsstress > failures due to stray delalloc blocks in files even on 4k block size > filesystems (e.g. at unmount). > I think I have a bit of an idea of what's going on here. I'm not sure that this one is post-eof delalloc related. For reference, here's the command that reproduces for me 100% of the time on a 1k block fs (derived from the fsx trace): xfs_io -fc "pwrite 185332 55756" \ -c "fcollapse 28672 40960" \ -c "pwrite 133228 63394" \ -c "fcollapse 0 4096" /mnt/file The first write extends the file to 241088 bytes and the first collapse targets a hole, but shrinks the file down to 200128 bytes. The last page offset of the file is now 196608 and with 1k blocks, eof falls within the last block of this page (e.g., within bh offsets 199680-200704). The second write falls just into the first block of this page. What I see occur on the final collapse is that the invalidate_inode_pages2_range() call in the collapse op fails due to finding a dirty page at offset 196608. We don't have a launder_page() callback, so this results in -EBUSY. Given the above, it seems like the filemap_write_and_wait_range() call should handle this. Digging further, what I see is one or two writepage()->xfs_cluster_write() sequences along the range of the previous write. xfs_convert_page() eventually attempts to handle page offset 196608 and breaks out at offset 197632 (the second bh in the page) near the top of the bh loop: ... if (!(PageUptodate(page) || buffer_uptodate(bh))) { done = 1; break; } ... I suspect the reason the page/buffer is in this particular state is due to the previous invalidation (collapse 1), which would have removed the page from the mapping. This seems reasonable to me since we only wrote into the first bytes of the page since the prior invalidation. The problem is that the page somehow has the following buffer_head state at the point of the EBUSY inval failure: invalidate_inode_pages2_range(648): state 0x29 block 84 size 1024 invalidate_inode_pages2_range(648): state 0x0 block 18446744073709551615 size 1024 invalidate_inode_pages2_range(648): state 0x0 block 18446744073709551615 size 1024 invalidate_inode_pages2_range(648): state 0x2b block 87 size 1024 The first block is BH_Uptodate|BH_Req|BH_Mapped. I read the next two as simply not up to date..? The last block is the same as the first plus BH_Dirty. This last block is offset 199680 and the previous write goes to 196622, so I'm not sure how this ends up dirty. I think the write path to this range of the file might be the spot to dig next... Brian P.S., As a datapoint from experimentation, this problem doesn't occur if I ensure that writepage() handles this particular page rather than xfs_convert_page(). I can do that by either jumping out of xfs_convert_page() sooner, before the page is set for writeback, or hacking xfs_start_page_writeback() to use __test_set_page_writeback() and keep the write tag such that write_cache_pages() can still find the page. This calls out an interesting bit of behavior in xfs_convert_page() since commit a49935f2: if we handle a part of a page, break and mark the page for writeback without handling the rest, we'll still clear the PAGECACHE_TAG_TOWRITE tag and writeback won't finish off the page during the current iteration (for WB_SYNC_ALL). It's not clear to me if this is contributing to the problem in this particular case, but it seems like an independent bug at the very least. Thoughts? > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Fri Sep 12 15:05:48 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id F1E2E7FB3 for ; Fri, 12 Sep 2014 15:05:47 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id C22BA304043 for ; Fri, 12 Sep 2014 13:05:44 -0700 (PDT) X-ASG-Debug-ID: 1410552340-04cb6c54fda87a00001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id SIB2W0wl3vZVxraO (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 12 Sep 2014 13:05:40 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8CK5cpA014079 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 12 Sep 2014 16:05:38 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8CK5bf8000971; Fri, 12 Sep 2014 16:05:38 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 7B61A1256F8; Fri, 12 Sep 2014 16:05:36 -0400 (EDT) Date: Fri, 12 Sep 2014 16:05:36 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH v2 0/5] clean up collapse range and handle post-eof delalloc Message-ID: <20140912200536.GB42029@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH v2 0/5] clean up collapse range and handle post-eof delalloc References: <1410355231-50495-1-git-send-email-bfoster@redhat.com> <20140911044243.GA10111@dastard> <20140911152012.GB54638@bfoster.bfoster> <20140911211915.GA4322@dastard> <20140912195128.GA42029@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140912195128.GA42029@bfoster.bfoster> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410552340 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Sep 12, 2014 at 03:51:29PM -0400, Brian Foster wrote: > On Fri, Sep 12, 2014 at 07:19:15AM +1000, Dave Chinner wrote: > > On Thu, Sep 11, 2014 at 11:20:13AM -0400, Brian Foster wrote: > > > On Thu, Sep 11, 2014 at 02:42:43PM +1000, Dave Chinner wrote: > > > > On Wed, Sep 10, 2014 at 09:20:26AM -0400, Brian Foster wrote: > > > > > Hi all, > > > > > > > > > > Here's v2 of the collapse clean up. We refactor a bit more via the > > > > > insertion of patch 3, otherwise it's similar to v1. This will see some > > > > > continued testing, but it survived ~500m fsx operations overnight. > > > > > > > > > > Brian > > > > > > > > I'm not sure about the invalidation patch now. On a 1k block size > > > > filesystem, generic/127 fails with: > > > > > > > > +ltp/fsx -q -l 262144 -o 65536 -S 191110531 -N 100000 -R -W fsx_std_nommap > > > > +collapse range: 1000 to 3000 > > > > +do_collapse_range: fallocate: Device or resource busy > > > > > > > > which indicates we had an invalidation failure. This is probably > > > > exposing some other bug, but I haven't had time to look into it yet > > > > so I don't know. > > > > > > > > > > Yeah, I can reproduce this as well, thanks. I think you're referring to > > > the xfs_free_file_space() patch (5/5)..? > > > > *nod* > > > > > FWIW, I don't see the problem > > > without that patch, so it appears that the full pagecache truncate is > > > still covering up a problem somewhere. I'll try to dig into it... > > > > It's likely that it is leaving a dirty buffer on the page beyond EOF > > as a result of the truncate zeroing the remainder of the page in > > memory. > > > > If I get a chance I'll look at it this afternoon, as this patchset > > also seems to be causing a marked increase in the number of fsstress > > failures due to stray delalloc blocks in files even on 4k block size > > filesystems (e.g. at unmount). > > > > I think I have a bit of an idea of what's going on here. I'm not sure > that this one is post-eof delalloc related. For reference, here's the > command that reproduces for me 100% of the time on a 1k block fs > (derived from the fsx trace): > > xfs_io -fc "pwrite 185332 55756" \ > -c "fcollapse 28672 40960" \ > -c "pwrite 133228 63394" \ > -c "fcollapse 0 4096" /mnt/file > > The first write extends the file to 241088 bytes and the first collapse > targets a hole, but shrinks the file down to 200128 bytes. The last page > offset of the file is now 196608 and with 1k blocks, eof falls within > the last block of this page (e.g., within bh offsets 199680-200704). The > second write falls just into the first block of this page. > > What I see occur on the final collapse is that the > invalidate_inode_pages2_range() call in the collapse op fails due to > finding a dirty page at offset 196608. We don't have a launder_page() > callback, so this results in -EBUSY. > > Given the above, it seems like the filemap_write_and_wait_range() call > should handle this. Digging further, what I see is one or two > writepage()->xfs_cluster_write() sequences along the range of the > previous write. xfs_convert_page() eventually attempts to handle page > offset 196608 and breaks out at offset 197632 (the second bh in the > page) near the top of the bh loop: > > ... > if (!(PageUptodate(page) || buffer_uptodate(bh))) { > done = 1; > break; > } > ... > > I suspect the reason the page/buffer is in this particular state is due > to the previous invalidation (collapse 1), which would have removed the > page from the mapping. This seems reasonable to me since we only wrote > into the first bytes of the page since the prior invalidation. The problem is > that the page somehow has the following buffer_head state at the point of the > EBUSY inval failure: > > invalidate_inode_pages2_range(648): state 0x29 block 84 size 1024 > invalidate_inode_pages2_range(648): state 0x0 block 18446744073709551615 size 1024 > invalidate_inode_pages2_range(648): state 0x0 block 18446744073709551615 size 1024 > invalidate_inode_pages2_range(648): state 0x2b block 87 size 1024 > > The first block is BH_Uptodate|BH_Req|BH_Mapped. I read the next two as > simply not up to date..? The last block is the same as the first plus > BH_Dirty. This last block is offset 199680 and the previous write goes > to 196622, so I'm not sure how this ends up dirty. I think the write > path to this range of the file might be the spot to dig next... > ... and it just hit me that truncate dirties the buffer. ;) So I'm wondering if we have something like the following sequence of events for this particular page: - first pwrite writes to complete page - first collapse: - flush - invalidate - truncate -> dirty last buffer of page - second pwrite writes to first buffer in page (dirty first buffer) - flush - xfs_convert_page() hits the first buffer, breaks out and causes the last buffer to be passed over due to the issue below - invalidate - finds dirty buffer, error! Brian > Brian > > P.S., As a datapoint from experimentation, this problem doesn't occur if > I ensure that writepage() handles this particular page rather than > xfs_convert_page(). I can do that by either jumping out of > xfs_convert_page() sooner, before the page is set for writeback, or > hacking xfs_start_page_writeback() to use __test_set_page_writeback() > and keep the write tag such that write_cache_pages() can still find the > page. This calls out an interesting bit of behavior in > xfs_convert_page() since commit a49935f2: if we handle a part of a > page, break and mark the page for writeback without handling the rest, > we'll still clear the PAGECACHE_TAG_TOWRITE tag and writeback won't > finish off the page during the current iteration (for WB_SYNC_ALL). > > It's not clear to me if this is contributing to the problem in this > particular case, but it seems like an independent bug at the very > least. Thoughts? > > > Cheers, > > > > Dave. > > -- > > Dave Chinner > > david@fromorbit.com > > > > _______________________________________________ > > xfs mailing list > > xfs@oss.sgi.com > > http://oss.sgi.com/mailman/listinfo/xfs > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From BATV+e480f420f953aa9743f7+4037+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 12 15:53:16 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id AD85C7FA7 for ; Fri, 12 Sep 2014 15:53:16 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 8D5A78F8037 for ; Fri, 12 Sep 2014 13:53:13 -0700 (PDT) X-ASG-Debug-ID: 1410555192-04bdf010a0a07200001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id tHUzlx90MvPbClh9 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO); Fri, 12 Sep 2014 13:53:12 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e480f420f953aa9743f7+4037+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XSXqB-0004Tg-P7; Fri, 12 Sep 2014 20:53:11 +0000 Date: Fri, 12 Sep 2014 13:53:11 -0700 From: Christoph Hellwig To: Dave Chinner Cc: Ben Myers , tinguely@sgi.com, olaf@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC] Unicode/UTF-8 support for XFS Message-ID: <20140912205311.GA11717@infradead.org> X-ASG-Orig-Subj: Re: [RFC] Unicode/UTF-8 support for XFS References: <20140911203735.GA19952@sgi.com> <20140912100230.GB4267@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140912100230.GB4267@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1410555192 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9414 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Fri, Sep 12, 2014 at 08:02:30PM +1000, Dave Chinner wrote: > > Implementation notes. > > > > Strings are normalized using a trie that stores the relevant information. > > The trie itself is part of the XFS module, and about 250kB in size. The > > trie is not checked in: instead we add the source files from the Unicode > > Character Database and a program that creates the header containing the > > trie. > > This is rather unappealing. Distros would have to take this code > size penalty if they decide one user needs that support. The other > millions of users pay that cost even if they don't want it. And > then there's validation - how are we supposed to validate that a > 250k binary blob is correct and free of issues on every compiler and > architecture that the kernel is built on? The way this needs to be done is to have a separate module for the tables, which XFS or other users then can symbol_get if and only if a mount requires it. The unicode tables should defintively be outside of fs/xfs. And please run this past lkml or -fsdevel, as people who actually understand unicode and related issues are much more likely to be found there than on the XFS list. From BATV+e480f420f953aa9743f7+4037+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 12 15:55:30 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 970D77FA7 for ; Fri, 12 Sep 2014 15:55:30 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 7AFBB30405F for ; Fri, 12 Sep 2014 13:55:30 -0700 (PDT) X-ASG-Debug-ID: 1410555328-04cbb05485d5c2a0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id FT3pbPO5zu5EsgYz (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO); Fri, 12 Sep 2014 13:55:29 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e480f420f953aa9743f7+4037+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XSXsO-00061W-Mt; Fri, 12 Sep 2014 20:55:28 +0000 Date: Fri, 12 Sep 2014 13:55:28 -0700 From: Christoph Hellwig To: Olaf Weber Cc: Dave Chinner , Ben Myers , tinguely@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC] Unicode/UTF-8 support for XFS Message-ID: <20140912205528.GB11717@infradead.org> X-ASG-Orig-Subj: Re: [RFC] Unicode/UTF-8 support for XFS References: <20140911203735.GA19952@sgi.com> <20140912100230.GB4267@dastard> <5412DF37.9030005@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5412DF37.9030005@sgi.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1410555329 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-ASG-Whitelist: Body =?UTF-8?B?aHR0cDovL21hcmNcLmluZm8vXD8=?= X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Sep 12, 2014 at 01:55:35PM +0200, Olaf Weber wrote: > I looked up those discussions in the archives. For example, here's > Christoph about rejecting filenames if they're not well-formed unicode. > http://marc.info/?l=linux-fsdevel&m=120876935526856&w=2 > And Jamie Lokier making a similar point: > http://oss.sgi.com/archives/xfs/2008-04/msg01263.html And I might now disagree with my past self. While non-ut8 characters are perfectly valid unix filenames, and I think everyones life is easier if we generally stay out of the utf8 business it seems that for this particular use case (shared filesystem with Windows, right) just accepting utf8 should be fine. ZFS is doing, MacOS X apparently is, and NFSv4 requires it, although as far as I know most implementations ignore that requirement. From greg@kroah.com Fri Sep 12 20:44:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id A61B67F37 for ; Fri, 12 Sep 2014 20:44:51 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 33140AC002 for ; Fri, 12 Sep 2014 18:44:48 -0700 (PDT) X-ASG-Debug-ID: 1410572683-04bdf0109aa11ad0001-NocioJ Received: from out4-smtp.messagingengine.com (out4-smtp.messagingengine.com [66.111.4.28]) by cuda.sgi.com with ESMTP id Fs4aE02VlYSFYALH (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 12 Sep 2014 18:44:43 -0700 (PDT) X-Barracuda-Envelope-From: greg@kroah.com X-Barracuda-Apparent-Source-IP: 66.111.4.28 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by gateway2.nyi.internal (Postfix) with ESMTP id E074C20A8A for ; Fri, 12 Sep 2014 21:44:42 -0400 (EDT) Received: from frontend1 ([10.202.2.160]) by compute3.internal (MEProxy); Fri, 12 Sep 2014 21:44:42 -0400 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=date:from:to:cc:subject:message-id :references:mime-version:content-type:in-reply-to; s=smtpout; bh=DkuaGgUuA5EsDkRjITD2WQTB+Dk=; b=HfcjEWZaqVJYmh6Vqn8EZRADGqk0 Yd9wBA3eGNNT6DLjS60Y13c5ejpdpEJlNMiWAUzHPY4yfV9vpiLOL/LEAjf02Kx7 Tl5joLtb7I6+693O4mYupvqX5stWn/M7myfQFcc3vPv+cdsnKhZiSmnwnrPDBZYo 5LQck2yAwAnj8dQ= X-Sasl-enc: 771IucYz/3jkY8q034mQzQUML2Vn6mnUFm+4oBrWPSDc 1410572682 Received: from localhost (unknown [24.22.230.10]) by mail.messagingengine.com (Postfix) with ESMTPA id 8F019C00915; Fri, 12 Sep 2014 21:44:42 -0400 (EDT) Date: Fri, 12 Sep 2014 18:44:41 -0700 From: Greg KH To: Dave Chinner Cc: stable@vger.kernel.org, xfs@oss.sgi.com, Fanael Linithien Subject: Re: XFS fixes needed in stable kernels Message-ID: <20140913014441.GA21972@kroah.com> X-ASG-Orig-Subj: Re: XFS fixes needed in stable kernels References: <20140820001623.GT20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140820001623.GT20518@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: out4-smtp.messagingengine.com[66.111.4.28] X-Barracuda-Start-Time: 1410572683 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9421 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Wed, Aug 20, 2014 at 10:16:23AM +1000, Dave Chinner wrote: > Hi Stable Kernel Gurus! > > The following XFs fixes need to be pushed back to stable kernels. > The commits weren't all tagged in the recent 3.17-rc1 merge, so > you're getting an email from me instead. The commits required > from 3.17-rc1 are: > > 67dc288 xfs: ensure verifiers are attached to recovered buffers You already marked this one, but it didn't apply to 3.10-stable > 5fd364f xfs: quotacheck leaves dquot buffers without verifiers Now queued up. > ad3714b xfs: dquot recovery needs verifiers Didn't apply at all to 3.16-stable :( thanks, greg k-h From weber@zbfmail.de Sat Sep 13 09:33:33 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E2EE27F3F for ; Sat, 13 Sep 2014 09:33:33 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id AA4258F804B for ; Sat, 13 Sep 2014 07:33:30 -0700 (PDT) X-ASG-Debug-ID: 1410618807-04bdf01097a2a910001-NocioJ Received: from mail.zbfmail.de (mail.zbfmail.de [176.9.84.12]) by cuda.sgi.com with ESMTP id qB8RahUQDzgBHCZg (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sat, 13 Sep 2014 07:33:28 -0700 (PDT) X-Barracuda-Envelope-From: weber@zbfmail.de X-Barracuda-Apparent-Source-IP: 176.9.84.12 Received: from mail.zbfmail.de (localhost [127.0.0.1]) by mail.zbfmail.de (Postfix) with ESMTP id EAD271BE46E for ; Sat, 13 Sep 2014 16:33:21 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.9.2 mail.zbfmail.de EAD271BE46E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zbfmail.de; s=dkim; t=1410618806; bh=Wa9qPo6JizxmGxJHuk0ij4slPveBzHfh1ZXutfyvZoA=; h=Date:From:To:Subject:Reply-To; b=s46sS878n0KsGmTyhr4epol0YKpGgf9MVTYdDTJbg7QfwVwZnFKDqhhi9+s1aNJ9O Yz4pPg8gwEKrpyVjlOqNqi+2qT2YXgW1lyJJnULjAFGdvr9eZgCap3tpj/6jt/FPCi HkEpM+9SbEj123DkmPA7JrEnMpj3oUTlvo0jZ9B8= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Date: Sat, 13 Sep 2014 16:33:21 +0200 From: Marko Weber|8000 To: Xfs Subject: unclean shutdown of usb hdd destroyed xfs partially Organization: zbf mail X-ASG-Orig-Subj: unclean shutdown of usb hdd destroyed xfs partially Reply-To: weber@zbfmail.de Mail-Reply-To: weber@zbfmail.de Message-ID: <3999c95c0dc7ebfdfbb2853a6d13f7dc@zbfmail.de> X-Sender: weber@zbfmail.de User-Agent: Roundcube zbfmail Webmail X-DCC--Metrics: mailserver 1282; Body=1 Fuz1=1 Fuz2=1 X-Barracuda-Connect: mail.zbfmail.de[176.9.84.12] X-Barracuda-Start-Time: 1410618808 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9439 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 hello dave hello list, an unclean shutdown on of my boxes made the xfs partially corrupt. i tried an xfs_repair with xfsprogs 3.1.10 then i read the corrupt data thread and tried it with 3.2.1 version of=20 xfsprogs. when i mount the partition and do an ls -l i get: # ls -l /mnt/temp ls: Zugriff auf /mnt/temp/serien nicht m=C3=B6glich: Die Struktur muss=20 bereinigt werden ls: Zugriff auf /mnt/temp/dokutv nicht m=C3=B6glich: Die Struktur muss=20 bereinigt werden insgesamt 0 ?????????? ? ? ? ? ? dokutv drwxrwxr-x 33 weber mediatomb 1283 25. Aug 2013 movies drwxrwxr-x 12 weber mediatomb 151 6. Aug 18:57 mp3 ?????????? ? ? ? ? ? serien the above lines with ls says "access not possible on serien and dokutv,=20 structure needs cleaning. This is also after an xfs_repair -L /dev/sde1 is there any trick to get the data accessable again? thanks for any hints or help marko From weber@zbfmail.de Sat Sep 13 09:37:06 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 70B417F3F for ; Sat, 13 Sep 2014 09:37:06 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id EA33CAC002 for ; Sat, 13 Sep 2014 07:37:02 -0700 (PDT) X-ASG-Debug-ID: 1410619020-04cb6c54feaad000001-NocioJ Received: from mail.zbfmail.de (mail.zbfmail.de [176.9.84.12]) by cuda.sgi.com with ESMTP id KclCpcX27m9bIH9J (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sat, 13 Sep 2014 07:37:01 -0700 (PDT) X-Barracuda-Envelope-From: weber@zbfmail.de X-Barracuda-Apparent-Source-IP: 176.9.84.12 Received: from mail.zbfmail.de (localhost [127.0.0.1]) by mail.zbfmail.de (Postfix) with ESMTP id BAC611BE51A for ; Sat, 13 Sep 2014 16:36:59 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.9.2 mail.zbfmail.de BAC611BE51A DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zbfmail.de; s=dkim; t=1410619019; bh=AmCs2VT6vQgLuMuVR9dwWvPWERl9IKhb7YTgBziFdLI=; h=Date:From:To:Subject:Reply-To:In-Reply-To:References; b=3GykL6settEDc+tanPBBXNqHl5fRNoQ8kJB+1fHu6yNHgsYXaW0kcG5gPCXPB3Bi1 eG1DzTEit8Z2d4gXLOiiDRlohRpQ2vR0T3gC8UEGdzv/7w7/b0Gp81cN0skq/pLJFh qRTPM3aZ80fFeZcGuQmMu2xS+Aijj+CnvUpsJ4cI= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Date: Sat, 13 Sep 2014 16:36:59 +0200 From: Marko Weber|8000 To: Xfs Subject: Re: unclean shutdown of usb hdd destroyed xfs partially Organization: zbf mail X-ASG-Orig-Subj: Re: unclean shutdown of usb hdd destroyed xfs partially Reply-To: weber@zbfmail.de Mail-Reply-To: weber@zbfmail.de In-Reply-To: <3999c95c0dc7ebfdfbb2853a6d13f7dc@zbfmail.de> References: <3999c95c0dc7ebfdfbb2853a6d13f7dc@zbfmail.de> Message-ID: <082ebd288523ee6155b66debade2a775@zbfmail.de> X-Sender: weber@zbfmail.de User-Agent: Roundcube zbfmail Webmail X-DCC--Metrics: mailserver 1282; Body=2 Fuz1=2 Fuz2=2 X-Barracuda-Connect: mail.zbfmail.de[176.9.84.12] X-Barracuda-Start-Time: 1410619020 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9439 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 an output of xfs_repair -v -L /dev/sde1 Am 2014-09-13 16:33, schrieb Marko Weber|8000: > hello dave hello list, >=20 > an unclean shutdown on of my boxes made the xfs partially corrupt. >=20 > i tried an xfs_repair with xfsprogs 3.1.10 > then i read the corrupt data thread and tried it with 3.2.1 version of=20 > xfsprogs. >=20 > when i mount the partition and do an ls -l i get: >=20 > # ls -l /mnt/temp > ls: Zugriff auf /mnt/temp/serien nicht m=C3=B6glich: Die Struktur muss > bereinigt werden > ls: Zugriff auf /mnt/temp/dokutv nicht m=C3=B6glich: Die Struktur muss > bereinigt werden > insgesamt 0 > ?????????? ? ? ? ? ? dokutv > drwxrwxr-x 33 weber mediatomb 1283 25. Aug 2013 movies > drwxrwxr-x 12 weber mediatomb 151 6. Aug 18:57 mp3 > ?????????? ? ? ? ? ? serien >=20 > the above lines with ls says "access not possible on serien and > dokutv, structure needs cleaning. >=20 > This is also after an xfs_repair -L /dev/sde1 >=20 > is there any trick to get the data accessable again? >=20 > thanks for any hints or help >=20 > marko >=20 > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs # xfs_repair -v -L /dev/sde1 Phase 1 - Superblock finden und =C3=BCberpr=C3=BCfen... - Berichts-Prozess in Abst=C3=A4nden von 15 Minutes - Block-Zwischenspeichergr=C3=B6=C3=9Fe ist auf 1487792 Eintr=C3= =A4ge gesetzt Phase 2 - ein internes Protokoll benutzen - Null-Protokoll... zero_log: head block 40 tail block 40 - freier Speicher und Inode-Karten des Dateisystems werden gescannt... bad magic numberbad magic numberbad magic number bad magic number bad magic number bad magic number bad magic number bad magic number bad magic number Metadata corruption detected at block 0x8/0x1000bad magic number bad magic number bad magic number bad magic number bad magic number bad magic number Metadata corruption detected at block 0x369497c8/0x1000 Metadata corruption detected at block 0x82fe3908/0x1000 Metadata corruption detected at block 0x20bf8e48/0x1000 Metadata corruption detected at block 0x417f1c88/0x1000 Metadata corruption detected at block 0x7813b448/0x1000 Metadata corruption detected at block 0x57542608/0x1000 Metadata corruption detected at block 0x4c69a148/0x1000 Metadata corruption detected at block 0x2baa1308/0x1000 Metadata corruption detected at block 0x6d292f88/0x1000 flasche magische # 0xfc4e2ba9 f=C3=BCr agf 0 Metadata corruption detected at block 0x15d50988/0x1000 falsche Version # 16777216 f=C3=BCr agf 0 falsche L=C3=A4nge 0 f=C3=BCr agf 0, k=C3=B6nnte 22892696 sein flfirst 1631203328 in agf 0 too large (max =3D 1024) falscher agf f=C3=BCr ag 0 wird zur=C3=BCckgesetzt falscher agbno 1681871612 f=C3=BCr btbno-Wurzel, agno 0 falscher agbno 1222767762 f=C3=BCr btbcnt-Wurzel, agno 0 Metadata corruption detected at block 0xaea84c8/0x1000 Metadata corruption detected at block 0x623eaac8/0x1000 Metadata corruption detected at block 0x8de8bdc8/0x1000 Metadata corruption detected at block 0xa3bdc748/0x1000 Metadata corruption detected at block 0x98d34288/0x1000 Metadata corruption detected at block 0x369497d0/0x1000 Metadata corruption detected at block 0x82fe3910/0x1000 falscher on-disk-Superblock 5 - falsche Magische Nummer falscher on-disk-Superblock 12 - falsche Magische Nummer Metadata corruption detected at block=20 0x20bf8e50/0x1000prim=C3=A4re/sekund=C3=A4rer Superblock-12-Konflikt -=20 AG-Superblock-Geometrie-Info hat einen Konflikt mit der Dateisystem-Geometrie flasche magische # 0x0 f=C3=BCr agf 12 falsche Version # 0 f=C3=BCr agf 12 Metadata corruption detected at block 0x417f1c90/0x1000 falscher on-disk-Superblock 6 - falsche Magische Nummer prim=C3=A4re/sekund=C3=A4rer Superblock-6-Konflikt - AG-Superblock-Geometri= e-Info=20 hat einen Konflikt mit der Dateisystem-Geometrie falscher on-disk-Superblock 3 - falsche Magische Nummer ungenutzten Anteil des =C2=BBsekund=C3=A4r=C2=AB-Superblocks nullen (AG #6) Metadata corruption detected at block 0x57542610/0x1000 falsche Sequenz # 0 f=C3=BCr agf 12 Metadata corruption detected at block=20 0x7813b450/0x1000Speicherzugriffsfehler From robin.listas@gmail.com Sat Sep 13 09:43:42 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 866267F50 for ; 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[79.159.63.177]) by mx.google.com with ESMTPSA id dc9sm5110730wib.5.2014.09.13.07.43.38 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 13 Sep 2014 07:43:38 -0700 (PDT) Sender: Carlos Robinson Received: from localhost (localhost [127.0.0.1]) by Telcontar.valinor (Postfix) with ESMTP id EB99A6128B for ; Sat, 13 Sep 2014 16:43:33 +0200 (CEST) X-Virus-Scanned: amavisd-new at valinor Received: from Telcontar.valinor ([127.0.0.1]) by localhost (Telcontar.valinor [127.0.0.1]) (amavisd-new, port 10024) with LMTP id exiH_aFm4EtH for ; Sat, 13 Sep 2014 16:43:32 +0200 (CEST) Received: from [127.0.0.1] (localhost [127.0.0.1]) by Telcontar.valinor (Postfix) with ESMTP id 7B6326066F for ; Sat, 13 Sep 2014 16:43:31 +0200 (CEST) Message-ID: <54145812.7070100@opensuse.org> Date: Sat, 13 Sep 2014 16:43:30 +0200 From: "Carlos E. R." User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.0 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: Re: unclean shutdown of usb hdd destroyed xfs partially References: <3999c95c0dc7ebfdfbb2853a6d13f7dc@zbfmail.de> X-ASG-Orig-Subj: Re: unclean shutdown of usb hdd destroyed xfs partially In-Reply-To: <3999c95c0dc7ebfdfbb2853a6d13f7dc@zbfmail.de> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: mail-we0-f172.google.com[74.125.82.172] X-Barracuda-Start-Time: 1410619420 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9439 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 2014-09-13 16:33, Marko Weber|8000 wrote: > # ls -l /mnt/temp ls: Zugriff auf /mnt/temp/serien nicht möglich: > Die Struktur muss bereinigt werden ... > the above lines with ls says "access not possible on serien and > dokutv, structure needs cleaning. Just a comment. You can issue commands like this: LANG=C ls -l /mnt/temp and the output will be, for that time only, in English, so that we can all read it ;-) - -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iEYEARECAAYFAlQUWBAACgkQtTMYHG2NR9WslgCeNCsAiQA21UaQWl28qipLwOTK nnsAn09/oQlsrkDwlF2TYznumgK5sXnI =ipKe -----END PGP SIGNATURE----- From somdeepdey10@gmail.com Sat Sep 13 12:07:59 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.3 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,HTML_MESSAGE,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 640057F47 for ; Sat, 13 Sep 2014 12:07:59 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 3AAFB8F804B for ; Sat, 13 Sep 2014 10:07:56 -0700 (PDT) X-ASG-Debug-ID: 1410628073-04cbb05488d841d0001-NocioJ Received: from mail-ie0-f170.google.com (mail-ie0-f170.google.com [209.85.223.170]) by cuda.sgi.com with ESMTP id uGCxBpAQc81BRUst (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Sat, 13 Sep 2014 10:07:54 -0700 (PDT) X-Barracuda-Envelope-From: somdeepdey10@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.223.170 X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.170] Received: by mail-ie0-f170.google.com with SMTP id tp5so2628331ieb.29 for ; Sat, 13 Sep 2014 10:07:53 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.170] X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.170] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=qJObt37yk5W5+h1QCojTwF51G5viJt86RFbrMefQw0A=; b=0xnVRoChnrOEIGWYQJkIRrEJtNnMizdiTdYJ4gZnhP3W4t76DzNMtbTjqctv7TWQMh BdZBbec+1js+IkfsT/u4Fqy4uLnTIzn6Df8umWajd2CIc/qTf9Zx+h94+ssrcaRyVPPn WI9njwPqonN+KdcJpHUCL7AtBdPQ7HRaiWpfa5SQ3+N0oGmzKgLxryiTjremLvV6q7he 3XjoUXWl8wBRW2zY4DeD/qKrDrjtFFmjzGMK3migxhjnNhHBmXVMNJdV4iSUGsbncHFm iUmmiBV8m/Aq9knPwGGAY6zV2TyWs+PIFoBeueHyEg5mQ2UXDjrHiR9/K7Tujtyo7xy7 hRsg== MIME-Version: 1.0 X-Received: by 10.42.161.198 with SMTP id u6mr17508105icx.31.1410628073692; Sat, 13 Sep 2014 10:07:53 -0700 (PDT) Received: by 10.107.4.78 with HTTP; Sat, 13 Sep 2014 10:07:53 -0700 (PDT) Date: Sat, 13 Sep 2014 22:37:53 +0530 Message-ID: Subject: [RFD] xfs_fsr: Doubts related to xfs_fsr code From: Somdeep Dey X-ASG-Orig-Subj: [RFD] xfs_fsr: Doubts related to xfs_fsr code To: xfs@oss.sgi.com Content-Type: multipart/alternative; boundary=90e6ba6e8fb83e236d0502f57163 X-Barracuda-Connect: mail-ie0-f170.google.com[209.85.223.170] X-Barracuda-Start-Time: 1410628074 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9442 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message --90e6ba6e8fb83e236d0502f57163 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi, While studying the code and attempting to understand it, we have come up against certain doubts that have us in a slight fix. We've included the concerned sections of the code below, along with our specific problem in each of these sections. A little pointer in the right direction would be of great help. (Source file : fsr_xfs_fsr.c) ****** Doubt number 1 ****** (line 331 onwards) int main() if (optind < argc) // If the command line input contains the XFS //filesystem name / file on which xfs_fsr needs to be run on { for (; optind < argc; optind++) { argname =3D argv[optind]; // save target which can be file or filesystem if (lstat64(argname, &sb) < 0) { /* This system call returns a stat64 structure, and thus sets * all fields in it. * On success, zero is returned. On error, -1 is returned, * and errno is set appropriately. */ fprintf(stderr, _("%s: could not stat: %s: %s\n"), progname, argname, strerror(errno)); continue; } // POSIX macros are defined to check the file type using the st_mode field if (S_ISLNK(sb.st_mode)) // Check if path(argname) is a //symbolic link, if so link will be stat-ed and not file {// Hence we run stat64() and save the obtained stat structure struct stat64 sb2; if (stat64(argname, &sb2) =3D=3D 0 && (S_ISBLK(sb2.st_mode) || S_ISCHR(sb2.st_mode))) sb =3D sb2; // check if stat is a success and //if argname(path) is block device ? OR is character device? } ___________________________________________________________________________= _____ We understand that lstat64() and stat64() are used to see if target (file/filesystem) can be stated and if yes then the structure is saved. But we couldn=E2=80=99t exactly understand its use and why both functions a= re used separately. Usually the error could not stat: filename : is followed by Permission denied. Is this related to the root permissions i.e. accessibility ? ****** Doubt number 2 ****** (line 184 onwards) static char * find_mountpoint(char *mtab, char *argname, struct stat64 *sb) while ((t =3D getmntent(mtabp))) { if (S_ISDIR(sb->st_mode)) { /* mount point */ if (stat64(t->mnt_dir, &ms) < 0) continue; if (sb->st_ino !=3D ms.st_ino) continue; if (sb->st_dev !=3D ms.st_dev) continue; if (strcmp(t->mnt_type, MNTTYPE_XFS) !=3D 0) continue; } else { /* device */ struct stat64 sb2; if (stat64(t->mnt_fsname, &ms) < 0) continue; if (sb->st_rdev !=3D ms.st_rdev) continue; if (strcmp(t->mnt_type, MNTTYPE_XFS) !=3D 0) continue; /* * Make sure the mount point given by mtab is accessible * before using it. */ if (stat64(t->mnt_dir, &sb2) < 0) continue; } ___________________________________________________________________________= _____ We just wanted to confirm if the basic working of the function is 1) To obtain a mount table pointer to the mount table (/etc/mtab/ or /proc/mounts). 2) For each entry in the mount table check if it is a directory or device and after performing various comparisons (checks) =E2=80=93 (could you please elabor= ate on the checks performed), this function returns a pointer to the entry. ****** Doubt number 3 ****** (line 677 onwards) static int fsrfs(char *mntdir, xfs_ino_t startino, int targetrange) For the following __s32 buflenout; fshandlep =3D jdm_getfshandle( mntdir ); if ( ! fshandlep ) { fsrprintf(_("unable to get handle: %s: %s\n"), mntdir, strerror( errno )); return -1; } ___________________________________________________________________________= _____ We are a bit confused about what is exactly the file handle being returned by jdm_getfshandle(). Also what exactly is buflenout. Is it a structure field ? ___________________________________________________________________________= _____ while ((ret =3D xfs_bulkstat(fsfd,&lastino, GRABSZ, &buf[0], &buflenout) = =3D=3D 0)) { xfs_bstat_t *p; xfs_bstat_t *endp; if (buflenout =3D=3D 0) goto out0; /* Each loop through, defrag targetrange percent of the files */ count =3D (buflenout * targetrange) / 100; qsort((char *)buf, buflenout, sizeof(struct xfs_bstat), cmp); ___________________________________________________________________________= _____ In the above code snippet we understand that the while loop will run for N(10) passes and defragment top 10% of the defragmented files. However we would appreciate if you could further explain the functions: (ret =3D xfs_bulkstat(fsfd,&lastino, GRABSZ, &buf[0], &buflenout) =3D=3D 0) qsort((char *)buf, buflenout, sizeof(struct xfs_bstat), cmp); We know that the sort function will be used to sort extents based on size and then offset, but a bit more information on how it is exactly working will be really appreciated, as we believe that this sort() has some other purpose. ___________________________________________________________________________= _____ For this mail we have listed only a limited number of doubts that we think are pressing. Based on further explanations that we might receive from you, we will send out another mail for the doubts that still linger. Regards, A-DRS. --90e6ba6e8fb83e236d0502f57163 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi,<= /div>

While = studying the code and attempting to understand it, we have come up against = certain doubts that have us in a slight fix. We've included the concern= ed
=C2=A0sections of the code below, along = with our specific problem in each of these=C2=A0
=C2=A0sections. A little pointer in the right direction would be of g= reat help.

(Source file : fsr_xfs_fsr.c)

****** Doubt number 1 ******
(line 331 onwards)
int mai= n()=C2=A0

if (optind < argc) // If the command line input contains the XFS=C2=A0
//filesystem name / file on which xfs_fsr needs to be run on
{
for (; optind < argc; optind++)=C2=A0
{
a= rgname =3D argv[optind]; = // save target which can be file or filesystem
if (lstat64(argname, &sb) < 0)
{ /* This system call returns a stat64 struc= ture, and thus sets =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 * all f= ields in it.
* On success, zero is returned. =C2=A0On error, -1 = is returned,=C2=A0
=C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 * and =C2=A0errno =C2=A0is set appropriatel= y.
*/
fprintf(stderr,
<= span class=3D"" style=3D"white-space:pre"> _("%s: could not s= tat: %s: %s\n"),
progname, argname, strerror(errno));
<= div class=3D"gmail_extra"> continue;
}=
// POSIX macros are defined to check the file type using the st_m= ode field
if (S_ISLNK(sb.st_mode)) // Check if path(argname) is a=C2=A0
//symboli= c link, if so link will be stat-ed and not file
{// Hence =C2=A0we= run stat64() and save the obtained stat structure
struct stat64 = sb2;
if (stat64(argname, &sb2) =3D=3D 0 && (S_ISBLK(s= b2.st_mode) || = =C2=A0=C2=A0
=C2=A0 =C2=A0 S_ISCHR(sb2.st_mode)))
sb= =3D sb2; // check if sta= t is a success and=C2=A0
//if argname(path) is block device ? O= R is character device? <= /div>
= }
________________________________= ________________________________________________

We understand that lstat64() and= stat64() are used to see if target
=C2=A0(= file/filesystem) can be stated and if yes then the structure is saved.=C2= =A0
But we couldn=E2=80=99t exactly underst= and its use and why both functions are used separately.
Usually the error could not stat: filename : is followed by Pe= rmission denied.
=C2=A0Is this related to t= he root permissions i.e. accessibility ?
****** Doubt number 2 ******

(line 184 onwards= )
static char *
find_mountpoint(char *mtab, char *argname, struct stat64 *sb)

while ((t =3D = getmntent(mtabp))) {
if (S_ISDIR(sb->st_mode)) { /* mount point */
if (stat64= (t->mnt_dir, &ms) < 0)
continue;
if (sb->= st_ino !=3D ms.st_ino)
continue;
if (sb->st_dev != =3D ms.st_dev)
continue;
if (strcmp(t->mnt_type, MN= TTYPE_XFS) !=3D 0)
continue;
<= span class=3D"" style=3D"white-space:pre"> } else { /* device */
struct stat64 = sb2;

<= span class=3D"" style=3D"white-space:pre"> if (stat64(t->mnt_fs= name, &ms) < 0)
continue;
if (sb->st_rdev != =3D ms.st_rdev)
continue;
if (strcmp(t->mnt_type, M= NTTYPE_XFS) !=3D 0)
continue;
<= br>
/*
* Make sure the mount point given by mtab is ac= cessible
* before using it.
*/
if (stat64(t= ->mnt_dir, &sb2) < 0)
continue;
}
______________________________________________________= __________________________
We just wanted t= o confirm if the basic working of the function is
1) To obtain a mount table pointer to the mount table (/etc/mtab/ or= /proc/mounts).
2) =C2=A0For each entry in = the mount table check if it is a directory or device and after
=C2=A0performing various comparisons (checks) =E2=80=93= (could you please elaborate on the checks
= =C2=A0 performed), this function returns a pointer to the entry.=C2=A0

****** Dou= bt number 3 ******

(line 677 onwards)
static int<= /div>
fsrfs(char *mntdir, xfs_ino_t startino, int= targetrange)

For the following=C2=A0

<= div class=3D"gmail_extra">__s32 = buflenout;

fshandlep = =3D jdm_getfshandle( mntdir );
if ( ! fshandlep ) {
fsrpr= intf(_("unable to get handle: %s: %s\n"),
=C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0mntdir, strerror( errno ));
return -1;
<= div class=3D"gmail_extra"> }
_______________________________________= _________________________________________
<= br>
We are a bit confused about what is exa= ctly the file handle being returned
=C2=A0b= y jdm_getfshandle().
Also what exactly is b= uflenout. Is it a structure field ?
_______= _________________________________________________________________________

while (= (ret =3D xfs_bulkstat(fsfd,&lastino, GRABSZ, &buf[0], &buflenou= t) =3D=3D 0))
{
xfs_bstat_t *p;
xfs_bstat_t *end= p;

if (buflenout =3D=3D 0)
= goto out0;

/* Each lo= op through, defrag targetrange percent of the files */
count =3D (= buflenout * targetrange) / 100;

<= div class=3D"gmail_extra"> qsort((char *)buf, buflenout, sizeof(struct xfs_bstat), cmp);
_____________________________________________________= ___________________________

In the above code snippet we understand that the whil= e loop will run for N(10)=C2=A0
passes and = defragment top 10% of the defragmented files.
However we would appreciate if you could further explain the functions:<= /div>

(ret = =3D xfs_bulkstat(fsfd,&lastino, GRABSZ, &buf[0], &buflenout) = =3D=3D 0)

qsort((char *)buf, buflenout, sizeof(struct xfs_bstat), cmp);

We know that th= e sort function will be used to sort extents based on size and then=C2=A0
offset, but a bit more information on how it= is exactly working will be really=C2=A0
ap= preciated, as we believe that this sort() has some other purpose.
____________________________________________________= ____________________________



For this mail we have listed only a limited number of= doubts that we think are pressing. Based on further explanations that we m= ight receive from you, we will send out another =C2=A0mail for the doubts t= hat still linger.

Regards,
A-DRS.
--90e6ba6e8fb83e236d0502f57163-- From BATV+0d006f7484da0da72a41+4038+infradead.org+hch@bombadil.srs.infradead.org Sat Sep 13 14:46:06 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BAF0E7F3F for ; Sat, 13 Sep 2014 14:46:06 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 4D861AC001 for ; Sat, 13 Sep 2014 12:46:03 -0700 (PDT) X-ASG-Debug-ID: 1410637560-04cbb05486d87af0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id ymBNWeD7bLmzsrpQ (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sat, 13 Sep 2014 12:46:01 -0700 (PDT) X-Barracuda-Envelope-From: BATV+0d006f7484da0da72a41+4038+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XStGh-0000ME-HH; Sat, 13 Sep 2014 19:45:59 +0000 Date: Sat, 13 Sep 2014 12:45:59 -0700 From: Christoph Hellwig To: Eric Sandeen Cc: Eric Sandeen , xfs-oss Subject: Re: [PATCH V3] xfs_io: add mremap command Message-ID: <20140913194559.GA28479@infradead.org> X-ASG-Orig-Subj: Re: [PATCH V3] xfs_io: add mremap command References: <54111610.4080604@redhat.com> <54132553.9090202@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <54132553.9090202@sandeen.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1410637561 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9445 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Fri, Sep 12, 2014 at 11:54:43AM -0500, Eric Sandeen wrote: > This adds a simple mremap command to xfs_io. > > It does not take a start address; it uses the existing > start address, so the sized passed will be the new total > size of the mapping. > > Signed-off-by: Eric Sandeen Looks good to me, but I'd feel much more comfortable about merging it if we had an xfstests test case that actually exercises it. From BATV+0d006f7484da0da72a41+4038+infradead.org+hch@bombadil.srs.infradead.org Sat Sep 13 14:47:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 816617F3F for ; Sat, 13 Sep 2014 14:47:22 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 62DA38F8033 for ; Sat, 13 Sep 2014 12:47:22 -0700 (PDT) X-ASG-Debug-ID: 1410637633-04cb6c5500ab7040001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id eiHzpFqpFGsZEHcL (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sat, 13 Sep 2014 12:47:13 -0700 (PDT) X-Barracuda-Envelope-From: BATV+0d006f7484da0da72a41+4038+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XStHt-0000Q9-77; Sat, 13 Sep 2014 19:47:13 +0000 Date: Sat, 13 Sep 2014 12:47:13 -0700 From: Christoph Hellwig To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH v2] xfsrestore: use utimensat() to provide atime/mtime with ns resolution Message-ID: <20140913194713.GB28479@infradead.org> X-ASG-Orig-Subj: Re: [PATCH v2] xfsrestore: use utimensat() to provide atime/mtime with ns resolution References: <1409866939-1480-1-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409866939-1480-1-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1410637633 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9446 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Sep 04, 2014 at 05:42:19PM -0400, Brian Foster wrote: > xfsdump encodes and stores the full atime and mtime for each file with > nanosecond resolution. xfsrestore uses utime() to set the times of each > file that is restored. The latter supports resolution of 1 second, thus > sub-second timestamp data is lost on restore. > > Add the associated configure checks for and use utimensat() when > available to restore timestamps with nanosecond resolution. Create a new > helper to facilitate conditional support for utimensat(). > > Signed-off-by: Brian Foster Looks good to me, Reviewed-by: Christoph Hellwig From BATV+0d006f7484da0da72a41+4038+infradead.org+hch@bombadil.srs.infradead.org Sat Sep 13 14:47:56 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id BED967F3F for ; Sat, 13 Sep 2014 14:47:56 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 85F8E8F8033 for ; Sat, 13 Sep 2014 12:47:56 -0700 (PDT) X-ASG-Debug-ID: 1410637675-04bdf0109aa34c80001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id BOzr1BXYzjxOPSsJ (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sat, 13 Sep 2014 12:47:55 -0700 (PDT) X-Barracuda-Envelope-From: BATV+0d006f7484da0da72a41+4038+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XStIV-0000Un-Kl; Sat, 13 Sep 2014 19:47:51 +0000 Date: Sat, 13 Sep 2014 12:47:51 -0700 From: Christoph Hellwig To: Jan ??ul??k , Dave Chinner Cc: Brian Foster , Eric Sandeen , XFS mail list Subject: Re: symlink loop for /lib64/libhandle.so Message-ID: <20140913194751.GA1675@infradead.org> X-ASG-Orig-Subj: Re: symlink loop for /lib64/libhandle.so References: <20140709132836.GA65226@bfoster.bfoster> <20140710134851.GA26652@infradead.org> <1405009872.31068.22.camel@jtulak> <53BEC1E7.1070904@sandeen.net> <1405075678.28203.56.camel@jtulak> <1405325087.3196.6.camel@jtulak> <20140714082607.GA19882@infradead.org> <20140715154857.GA14716@infradead.org> <20140811180227.GA30281@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140811180227.GA30281@infradead.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1410637675 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9445 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS ping? On Mon, Aug 11, 2014 at 11:02:27AM -0700, Christoph Hellwig wrote: > Dave, can you pick up this patch for xfsprogs? > > On Tue, Jul 15, 2014 at 08:48:57AM -0700, Christoph Hellwig wrote: > > Hi Jan, > > > > there were still some small isues with the patch format, I've attached > > a version of your patch that has the expected format. > > > > Note that I also changed it to only check the canonical names instead of > > testing the passed in one and the one readlink was called on. This > > should be enough I think, but please test that it still works for you. > > > > Thanks for tracking this down! > > > From: Jan Tulak > > Subject: [PATCH] libhandle: fix instalation for symlinked /usr > > > > Canonicalize the pathnames for PKG_LIB_DIR and PKG_ROOT_LIB_DIR before > > checking if they are the same. This is required for Fedora which doesn't > > have a separate /usr/lib directory anymore. > > > > Reported-by: Jan Tulak > > Signed-off-by: Jan Tulak > > > > diff --git a/include/buildmacros b/include/buildmacros > > index 7a01880..4e4e8fa 100644 > > --- a/include/buildmacros > > +++ b/include/buildmacros > > @@ -76,10 +76,11 @@ INSTALL_LTLIB_DEV = \ > > ../$(INSTALL) -m 644 $(LIBNAME).lai $(PKG_LIB_DIR)/$(LIBNAME).la ; \ > > ../$(INSTALL) -m 755 -d $(PKG_ROOT_LIB_DIR); \ > > ../$(INSTALL) -T so_base $(LIBNAME).lai $(PKG_ROOT_LIB_DIR); \ > > - if test "x$(PKG_LIB_DIR)" != "x$(PKG_ROOT_LIB_DIR)" ; then \ > > - ../$(INSTALL) -S $(PKG_LIB_DIR)/$(LIBNAME).a $(PKG_ROOT_LIB_DIR)/$(LIBNAME).a; \ > > - ../$(INSTALL) -S $(PKG_LIB_DIR)/$(LIBNAME).la $(PKG_ROOT_LIB_DIR)/$(LIBNAME).la; \ > > - ../$(INSTALL) -S $(PKG_ROOT_LIB_DIR)/$(LIBNAME).so $(PKG_LIB_DIR)/$(LIBNAME).so; \ > > + if [ "x$(shell readlink -f $(PKG_LIB_DIR))" != \ > > + "x$(shell readlink -f $(PKG_ROOT_LIB_DIR))"; ]; then \ > > + ../$(INSTALL) -S $(PKG_LIB_DIR)/$(LIBNAME).a $(PKG_ROOT_LIB_DIR)/$(LIBNAME).a; \ > > + ../$(INSTALL) -S $(PKG_LIB_DIR)/$(LIBNAME).la $(PKG_ROOT_LIB_DIR)/$(LIBNAME).la; \ > > + ../$(INSTALL) -S $(PKG_ROOT_LIB_DIR)/$(LIBNAME).so $(PKG_LIB_DIR)/$(LIBNAME).so; \ > > fi > > else > > INSTALL_LTLIB_DEV = $(INSTALL_LTLIB_STATIC) > > > _______________________________________________ > > xfs mailing list > > xfs@oss.sgi.com > > http://oss.sgi.com/mailman/listinfo/xfs > > ---end quoted text--- ---end quoted text--- From sandeen@sandeen.net Sat Sep 13 15:12:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 75F517F3F for ; Sat, 13 Sep 2014 15:12:13 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 5C5F9304048 for ; Sat, 13 Sep 2014 13:12:10 -0700 (PDT) X-ASG-Debug-ID: 1410639128-04cb6c5500ab7740001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id HQYAWNwwS7QINpAm for ; Sat, 13 Sep 2014 13:12:08 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 264ED60EB594; Sat, 13 Sep 2014 15:12:08 -0500 (CDT) Message-ID: <5414A517.1080102@sandeen.net> Date: Sat, 13 Sep 2014 15:12:07 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Christoph Hellwig CC: Eric Sandeen , xfs-oss Subject: Re: [PATCH V3] xfs_io: add mremap command References: <54111610.4080604@redhat.com> <54132553.9090202@sandeen.net> <20140913194559.GA28479@infradead.org> X-ASG-Orig-Subj: Re: [PATCH V3] xfs_io: add mremap command In-Reply-To: <20140913194559.GA28479@infradead.org> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410639128 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9446 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/13/14 2:45 PM, Christoph Hellwig wrote: > On Fri, Sep 12, 2014 at 11:54:43AM -0500, Eric Sandeen wrote: >> This adds a simple mremap command to xfs_io. >> >> It does not take a start address; it uses the existing >> start address, so the sized passed will be the new total >> size of the mapping. >> >> Signed-off-by: Eric Sandeen > > Looks good to me, but I'd feel much more comfortable about merging it > if we had an xfstests test case that actually exercises it. > I did it for a crazy mremap failure we saw, I'll probably end up writing a testcase for that which uses it. I could easily enough write a test to exercise this directly too, I'll look into it. Thanks, -Eric From sandeen@sandeen.net Sat Sep 13 16:46:48 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id C7FFD7F3F for ; Sat, 13 Sep 2014 16:46:47 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 3B810AC001 for ; Sat, 13 Sep 2014 14:46:46 -0700 (PDT) X-ASG-Debug-ID: 1410644804-04cbb05486d8a800001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id zUqQzaiFa6z1QHO6 for ; Sat, 13 Sep 2014 14:46:45 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id A694060EB594; Sat, 13 Sep 2014 16:46:44 -0500 (CDT) Message-ID: <5414BB44.6060306@sandeen.net> Date: Sat, 13 Sep 2014 16:46:44 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Somdeep Dey , xfs@oss.sgi.com Subject: Re: [RFD] xfs_fsr: Doubts related to xfs_fsr code References: X-ASG-Orig-Subj: Re: [RFD] xfs_fsr: Doubts related to xfs_fsr code In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410644804 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9448 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/13/14 12:07 PM, Somdeep Dey wrote: > Hi, > > While studying the code and attempting to understand it, we have come up against certain doubts that have us in a slight fix. We've included the concerned > sections of the code below, along with our specific problem in each of these > sections. A little pointer in the right direction would be of great help. > > (Source file : fsr_xfs_fsr.c) If possible, please send mails - especially those containing code - in plaintext, not HTML, so it doeesn't get mangled. > ****** Doubt number 1 ****** > (line 331 onwards) (re-pasted to avoid html mangling) for (; optind < argc; optind++) { argname = argv[optind]; if (lstat64(argname, &sb) < 0) { fprintf(stderr, _("%s: could not stat: %s: %s\n"), progname, argname, strerror(errno)); continue; } if (S_ISLNK(sb.st_mode)) { struct stat64 sb2; if (stat64(argname, &sb2) == 0 && (S_ISBLK(sb2.st_mode) || S_ISCHR(sb2.st_mode))) sb = sb2; } mntp = find_mountpoint(mtab, argname, &sb); > ________________________________________________________________________________ > > We understand that lstat64() and stat64() are used to see if target > (file/filesystem) can be stated and if yes then the structure is saved. > But we couldn’t exactly understand its use and why both functions are used separately. > Usually the error could not stat: filename : is followed by Permission denied. > Is this related to the root permissions i.e. accessibility ? The code has the net effect of only using the stat information of a link target if that target is a block or character device. I don't know for sure why that is, but I presume that it has to do with the find_mountpoint() code, and symlinks in /dev vs. what is found in /proc/mounts. The manpage mentions this behavior as well: A command line name referring to a symbolic link (except to a file system device), FIFO, or UNIX domain socket generates a warning message, but is otherwise ignored. While traversing the filesystem these types of files are silently skipped. > ****** Doubt number 2 ****** > > (line 184 onwards) while ((t = getmntent(mtabp))) { if (S_ISDIR(sb->st_mode)) { /* mount point */ if (stat64(t->mnt_dir, &ms) < 0) continue; if (sb->st_ino != ms.st_ino) continue; if (sb->st_dev != ms.st_dev) continue; if (strcmp(t->mnt_type, MNTTYPE_XFS) != 0) continue; } else { /* device */ struct stat64 sb2; if (stat64(t->mnt_fsname, &ms) < 0) continue; if (sb->st_rdev != ms.st_rdev) continue; if (strcmp(t->mnt_type, MNTTYPE_XFS) != 0) continue; /* * Make sure the mountpoint given by mtab is accessible * before using it. */ if (stat64(t->mnt_dir, &sb2) < 0) continue; > ________________________________________________________________________________ > We just wanted to confirm if the basic working of the function is > 1) To obtain a mount table pointer to the mount table (/etc/mtab/ or /proc/mounts). > 2) For each entry in the mount table check if it is a directory or device and after > performing various comparisons (checks) – (could you please elaborate on the checks > performed), this function returns a pointer to the entry. We are looking to see if we have been given either a mounted xfs device, or an xfs mount point. We iterate over devices from getmntent to find out if there is a match for a mounted filesystem. If the cmdline argument was a directory, it might be a mountpoint, so we check the getmntent entry's mnt_dir (mountpoint) to see if it: 1) has the same inode number as our argument 2) is the same device number as our argument (same st_dev) 3) is of type XFS If it isn't a directory, it might be a device, so we check the getmntent entry's device by looking at it's mnt_fsname (device) to see if: 1) is the same device number (same st_rdev) 2) is of type XFS > ****** Doubt number 3 ****** > > (line 677 onwards) > static int > fsrfs(char *mntdir, xfs_ino_t startino, int targetrange) > > For the following __s32 buflenout; ... fshandlep = jdm_getfshandle( mntdir ); if ( ! fshandlep ) { fsrprintf(_("unable to get handle: %s: %s\n"), mntdir, strerror( errno )); return -1; } > ________________________________________________________________________________ > > We are a bit confused about what is exactly the file handle being returned > by jdm_getfshandle(). > Also what exactly is buflenout. Is it a structure field ? > ________________________________________________________________________________ Let's be inquisitive people, and find out the answers to these questions by reading the code and the existing documentation: The fshandlep returned by jdm_getfshandle is passed through jdm_open() to open_by_fshandle(), which calls the XFS_IOC_OPEN_BY_HANDLE interface, which is well described in the open_by_handle(3) manpage. buflenout is passed to xfs_bulkstat() as the *ocount argument, which assigns it to an xfs_fsop_bulkreq_t structure's ocount member. That structure is then passed to the XFS_IOC_FSBULKSTAT which is documented in the xfsctl manpage: ocount is a pointer to a count of returned values, filled in by the call. An output ocount value of zero means that the inode table has been exhausted. That manpage also explains what the XFS bulkstat interface does. > ________________________________________________________________________________ while ((ret = xfs_bulkstat(fsfd, &lastino, GRABSZ, &buf[0], &buflenout) == 0)) { xfs_bstat_t *p; xfs_bstat_t *endp; if (buflenout == 0) goto out0; /* Each loop through, defrag targetrange percent of the files */ count = (buflenout * targetrange) / 100; qsort((char *)buf, buflenout, sizeof(struct xfs_bstat), cmp); > In the above code snippet we understand that the while loop will run for N(10) > passes and defragment top 10% of the defragmented files. > However we would appreciate if you could further explain the functions: > > (ret = xfs_bulkstat(fsfd,&lastino, GRABSZ, &buf[0], &buflenout) == 0) see the manpage mentioned above; it gets a batch (GRABSZ, or 64) of inodes to look at. > qsort((char *)buf, buflenout, sizeof(struct xfs_bstat), cmp); > > We know that the sort function will be used to sort extents based on size and then > offset, but a bit more information on how it is exactly working will be really > appreciated, as we believe that this sort() has some other purpose. > ________________________________________________________________________________ It has nothing to do with the extent *size* qsort is passed cmp() which compares the number of extents, based on: __s32 bs_extents; /* number of extents */ and sorts based on that. So it compares all of the entries returned by xfs_bulkstat and sorts the buffer by the number of extents in the entries, that's all. > For this mail we have listed only a limited number of doubts that we > think are pressing. Based on further explanations that we might > receive from you, we will send out another mail for the doubts that > still linger. Please also do as much reading of code and the existing documentation as you can, first. ;) -Eric > Regards, > A-DRS. From david@fromorbit.com Sat Sep 13 17:09:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1BCFA7F3F for ; Sat, 13 Sep 2014 17:09:38 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 96B8EAC001 for ; Sat, 13 Sep 2014 15:09:34 -0700 (PDT) X-ASG-Debug-ID: 1410646170-04cb6c54fdaba350001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id IXyGC7PyF5EqUXXa for ; Sat, 13 Sep 2014 15:09:31 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtAgAHe/FFR5LCtm/2dsb2JhbABfgw2BKoIsr2gGmHuFawQCAYEHF3iEAwEBAQMBDCYBIyMFCwgDGAkQAhMPBSUDNIg2B7wqGBiFZIlRBxYRAoMFgR0FnQeVQINwKy9nIYFCAQEB Received: from ppp121-44-43-102.lns20.syd6.internode.on.net (HELO dastard) ([121.44.43.102]) by ipmail07.adl2.internode.on.net with ESMTP; 14 Sep 2014 07:39:30 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XSvVM-0001Uy-QN; Sun, 14 Sep 2014 08:09:16 +1000 Date: Sun, 14 Sep 2014 08:09:16 +1000 From: Dave Chinner To: weber@zbfmail.de Cc: Xfs Subject: Re: unclean shutdown of usb hdd destroyed xfs partially Message-ID: <20140913220916.GC4267@dastard> X-ASG-Orig-Subj: Re: unclean shutdown of usb hdd destroyed xfs partially References: <3999c95c0dc7ebfdfbb2853a6d13f7dc@zbfmail.de> <082ebd288523ee6155b66debade2a775@zbfmail.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <082ebd288523ee6155b66debade2a775@zbfmail.de> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1410646171 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9449 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header On Sat, Sep 13, 2014 at 04:36:59PM +0200, Marko Weber|8000 wrote: > > an output of xfs_repair -v -L /dev/sde1 ... > > # xfs_repair -v -L /dev/sde1 What version? > Phase 1 - Superblock finden und überprüfen... > - Berichts-Prozess in Abständen von 15 Minutes > - Block-Zwischenspeichergröße ist auf 1487792 Einträge gesetzt > Phase 2 - ein internes Protokoll benutzen > - Null-Protokoll... > zero_log: head block 40 tail block 40 > - freier Speicher und Inode-Karten des Dateisystems werden > gescannt... > bad magic numberbad magic numberbad magic number .... > falscher on-disk-Superblock 12 - falsche Magische Nummer > Metadata corruption detected at block > 0x20bf8e50/0x1000primäre/sekundärer Superblock-12-Konflikt - > AG-Superblock-Geometrie-Info hat einen Konflikt mit der > Dateisystem-Geometrie > flasche magische # 0x0 für agf 12 > falsche Version # 0 für agf 12 > > Metadata corruption detected at block 0x417f1c90/0x1000 > falscher on-disk-Superblock 6 - falsche Magische Nummer > primäre/sekundärer Superblock-6-Konflikt - > AG-Superblock-Geometrie-Info hat einen Konflikt mit der > Dateisystem-Geometrie > falscher on-disk-Superblock 3 - falsche Magische Nummer > ungenutzten Anteil des »sekundär«-Superblocks nullen (AG #6) > Metadata corruption detected at block 0x57542610/0x1000 > falsche Sequenz # 0 für agf 12 > Metadata corruption detected at block > 0x7813b450/0x1000Speicherzugriffsfehler I don't read german(?) but that looks like many AG header block have been overwritten with zeros (0 magic number, 0 sequence #, 0 length, etc) and so even if we can repair the filesystem, I'd suggest that you need to verify that the data in every file in the filesystem is correct. Is that as far as xfs_repair got? If so, it would have appeared to crash. Can you run the lastest version inside gdb to get a stack trace when it dies? Or, alternatively, provide a metadump for one of us to look at more closely? Cheers, Dave. -- Dave Chinner david@fromorbit.com From root@krios.tbi.univie.ac.at Sat Sep 13 23:25:12 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8E7257F3F for ; Sat, 13 Sep 2014 23:25:12 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 784F38F8033 for ; Sat, 13 Sep 2014 21:25:09 -0700 (PDT) X-ASG-Debug-ID: 1410668705-04cb6c54fdac1090001-NocioJ Received: from krios.tbi.univie.ac.at (krios.tbi.univie.ac.at [131.130.44.60]) by cuda.sgi.com with ESMTP id EzbkVO9GtoAGsm3U for ; Sat, 13 Sep 2014 21:25:06 -0700 (PDT) X-Barracuda-Envelope-From: root@krios.tbi.univie.ac.at X-Barracuda-Apparent-Source-IP: 131.130.44.60 Received: by krios.tbi.univie.ac.at (Postfix) id 5EDDE5ECF1; Sun, 14 Sep 2014 06:25:03 +0200 (CEST) Delivered-To: root@krios.tbi.univie.ac.at Received: by krios.tbi.univie.ac.at (Postfix, from userid 0) id 499F15F1A2; Sun, 14 Sep 2014 06:25:03 +0200 (CEST) From: root@krios.tbi.univie.ac.at (Cron Daemon) To: root@krios.tbi.univie.ac.at Subject: Cron test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily ) Content-Type: text/plain; charset=UTF-8 X-ASG-Orig-Subj: Cron test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily ) X-Cron-Env: X-Cron-Env: X-Cron-Env: X-Cron-Env: Message-Id: <20140914042503.499F15F1A2@krios.tbi.univie.ac.at> Date: Sun, 14 Sep 2014 06:25:03 +0200 (CEST) X-Barracuda-Connect: krios.tbi.univie.ac.at[131.130.44.60] X-Barracuda-Start-Time: 1410668705 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.70 X-Barracuda-Spam-Status: No, SCORE=0.70 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC0_SA_TO_FROM_ADDR_MATCH, PR0N_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9457 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.20 PR0N_SUBJECT Subject has letters around special characters (pr0n) 0.50 BSF_SC0_SA_TO_FROM_ADDR_MATCH Sender Address Matches Recipient Address /etc/cron.daily/logrotate: error: error opening /home/git/gitlab/log/application.log: Permission denied error: error opening /home/git/gitlab/log/githost.log: Permission denied error: error opening /home/git/gitlab/log/production.log: Permission denied error: error opening /home/git/gitlab/log/satellites.log: Permission denied error: error opening /home/git/gitlab/log/sidekiq.log: Permission denied error: error opening /home/git/gitlab/log/unicorn.stderr.log: Permission denied error: error opening /home/git/gitlab/log/unicorn.stdout.log: Permission denied error: error opening /home/git/gitlab-shell/gitlab-shell.log: Permission denied run-parts: /etc/cron.daily/logrotate exited with return code 1 From shamss@chges.ru Sun Sep 14 10:04:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7A8AF7F4E for ; Sun, 14 Sep 2014 10:04:17 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 64BA58F8035 for ; Sun, 14 Sep 2014 08:04:14 -0700 (PDT) X-ASG-Debug-ID: 1410707047-04cbb05488da0650001-NocioJ Received: from ns3.bevolex.com 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--b1_259456a4f6b684460b0cd6a3ded767d9-- From david@fromorbit.com Sun Sep 14 20:47:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E00A87F4E for ; Sun, 14 Sep 2014 20:47:39 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id C7D148F8039 for ; Sun, 14 Sep 2014 18:47:39 -0700 (PDT) X-ASG-Debug-ID: 1410745628-04cb6c54fdadcb20001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id itmsjHbhcKAv7Hkn for ; Sun, 14 Sep 2014 18:47:09 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgApABREFlR5LCtm/2dsb2JhbABfgw2BKoIssCkGmHuFawICAQEBgQ0XeIQDAQEBAwEnExwjBQsIAw4HAwklDwUlAyETFIgiB7k8ARcYhWSJUQeDLoEdBYRblVyCUJVAg3ArL4JKAQEB Received: from ppp121-44-43-102.lns20.syd6.internode.on.net (HELO dastard) ([121.44.43.102]) by ipmail07.adl2.internode.on.net with ESMTP; 15 Sep 2014 11:17:07 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XTLNW-0004Xx-SA; Mon, 15 Sep 2014 11:46:54 +1000 Date: Mon, 15 Sep 2014 11:46:54 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH v2 0/5] clean up collapse range and handle post-eof delalloc Message-ID: <20140915014654.GD4267@dastard> X-ASG-Orig-Subj: Re: [PATCH v2 0/5] clean up collapse range and handle post-eof delalloc References: <1410355231-50495-1-git-send-email-bfoster@redhat.com> <20140911044243.GA10111@dastard> <20140911152012.GB54638@bfoster.bfoster> <20140911211915.GA4322@dastard> <20140912195128.GA42029@bfoster.bfoster> <20140912200536.GB42029@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140912200536.GB42029@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1410745628 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9489 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Sep 12, 2014 at 04:05:36PM -0400, Brian Foster wrote: > On Fri, Sep 12, 2014 at 03:51:29PM -0400, Brian Foster wrote: > > On Fri, Sep 12, 2014 at 07:19:15AM +1000, Dave Chinner wrote: > > > On Thu, Sep 11, 2014 at 11:20:13AM -0400, Brian Foster wrote: > > > > On Thu, Sep 11, 2014 at 02:42:43PM +1000, Dave Chinner wrote: > > > > > On Wed, Sep 10, 2014 at 09:20:26AM -0400, Brian Foster wrote: > > > > > > Hi all, > > > > > > > > > > > > Here's v2 of the collapse clean up. We refactor a bit more via the > > > > > > insertion of patch 3, otherwise it's similar to v1. This will see some > > > > > > continued testing, but it survived ~500m fsx operations overnight. > > > > > > > > > > > > Brian > > > > > > > > > > I'm not sure about the invalidation patch now. On a 1k block size > > > > > filesystem, generic/127 fails with: > > > > > > > > > > +ltp/fsx -q -l 262144 -o 65536 -S 191110531 -N 100000 -R -W fsx_std_nommap > > > > > +collapse range: 1000 to 3000 > > > > > +do_collapse_range: fallocate: Device or resource busy > > > > > > > > > > which indicates we had an invalidation failure. This is probably > > > > > exposing some other bug, but I haven't had time to look into it yet > > > > > so I don't know. .... > > > It's likely that it is leaving a dirty buffer on the page beyond EOF > > > as a result of the truncate zeroing the remainder of the page in > > > memory. ..... > ... and it just hit me that truncate dirties the buffer. ;) Exactly. ;) > So I'm > wondering if we have something like the following sequence of events for > this particular page: > > - first pwrite writes to complete page > - first collapse: xfs_collapse_file_space: dev 7:0 ino 0x43 > - flush xfs_map_blocks_alloc: dev 7:0 ino 0x43 size 0x0 offset 0x2d000 count 1024 type startoff 0xb4 startblock 32 blockcount 0x38 xfs_extlist: dev 7:0 ino 0x43 state idx 0 offset 180 block 32 count 56 flag 0 caller xfs_iextents_copy > - invalidate xfs_releasepage: dev 7:0 ino 0x43 pgoff 0x2d000 size 0x3adc0 offset 0 length 0 delalloc 0 unwritten 0 .... xfs_releasepage: dev 7:0 ino 0x43 pgoff 0x3a000 size 0x3adc0 offset 0 length 0 delalloc 0 unwritten 0 > - truncate -> dirty last buffer of page xfs_setattr: dev 7:0 ino 0x43 .... xfs_invalidatepage: dev 7:0 ino 0x43 pgoff 0x30000 size 0x30dc0 offset dc0 length 240 delalloc 0 unwritten 0 .... xfs_itruncate_extents_start: dev 7:0 ino 0x43 size 0x30dc0 new_size 0x30dc0 xfs_extlist: dev 7:0 ino 0x43 state idx 0 offset 140 block 32 count 56 flag 0 caller xfs_iextents_copy And so we have truncate dirtying the last buffer in the page (the offset/len indicated by the xfs_invalidatepage tracepoint). > - second pwrite writes to first buffer in page (dirty first buffer) > - flush > - xfs_convert_page() hits the first buffer, breaks out > and causes the last buffer to be passed over due to > the issue below > - invalidate > - finds dirty buffer, error! > > Brian > > > Brian > > > > P.S., As a datapoint from experimentation, this problem doesn't occur if > > I ensure that writepage() handles this particular page rather than > > xfs_convert_page(). I can do that by either jumping out of > > xfs_convert_page() sooner, before the page is set for writeback, or > > hacking xfs_start_page_writeback() to use __test_set_page_writeback() > > and keep the write tag such that write_cache_pages() can still find the > > page. writepage is still supposed to find the page again, because we haven't fully cleaned it. Indeed, the code used to come back and write this page because it was still dirty and the write_cache_pages() iteration would then see it and write it again because it is dirty. > > This calls out an interesting bit of behavior in > > xfs_convert_page() since commit a49935f2: if we handle a part of a > > page, break and mark the page for writeback without handling the rest, > > we'll still clear the PAGECACHE_TAG_TOWRITE tag and writeback won't > > finish off the page during the current iteration (for WB_SYNC_ALL). Right, commit a49935f2 made the assumption that the page being left dirty was sufficient to have the page written as the current writeback sweep went past it. That *used* to be the way the generic writeback code worked. And this is instructive: this same assumption was found in ext4 back in May i.e. commit 1c8349a ("ext4: fix data integrity sync in ordered mode") and that introduced the new functions like __test_set_page_writeback(). That fix wasn't cc'd to linux-fsdevel which might have got our attention and so noticed the bug earlier... > > It's not clear to me if this is contributing to the problem in this > > particular case, but it seems like an independent bug at the very > > least. Thoughts? We definitely need to use set_page_writeback_keepwrite() for partial page writes that leave the page dirty. Patch below. Cheers, Dave. -- Dave Chinner david@fromorbit.com xfs: ensure WB_SYNC_ALL writeback handles partial pages correctly From: Dave Chinner XFS has been having trouble with stray delayed allocation extents beyond EOF for a long time. Recent changes to the collapse range code has triggered erroneous EBUSY errors on page invalidtion for block size smaller than page size filesystems. These have been caused by dirty buffers beyond EOF on a partial page which do not get written to disk during a sync. The issue is that write-ahead in xfs_cluster_write() finds such a partial page and handles it by leaving the page dirty but pushing it into a writeback state. This used to work just fine, as the write_cache_pages() code would then find the dirty partial page in the next mapping tree lookup as the dirty tag is still set. Unfortunately, when we moved to a mark and sweep approach to writeback to fix other writeback sync issues, we broken this. THe act of marking the page as under writeback now clears the TOWRITE tag in the radix tree, even though the page is still dirty. This causes the TOWRITE tag to be cleared, and hence the next lookup on the mapping tree does not find the dirty partial page and so doesn't try to write it again. This same writeback bug was found recently in ext4 and fixed in commit 1c8349a ("ext4: fix data integrity sync in ordered mode") without communication to the wider filesystem community. We can use exactly the same fix here so the TOWRITE flag is not cleared on partial page writes. cc: stable@vger.kernel.org # dependent on 1c8349a17137b93f0a83f276c764a6df1b9a116e Root-cause-found-by: Brian Foster Signed-off-by: Dave Chinner --- fs/xfs/xfs_aops.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index b984647..2f50253 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -434,10 +434,22 @@ xfs_start_page_writeback( { ASSERT(PageLocked(page)); ASSERT(!PageWriteback(page)); - if (clear_dirty) + + /* + * if the page was not fully cleaned, we need to ensure that the higher + * layers come back to it correctly. That means we need to keep the page + * dirty, and for WB_SYNC_ALL writeback we need to ensure the + * PAGECACHE_TAG_TOWRITE index mark is not removed so another attempt to + * write this page in this writeback sweep will be made. + */ + if (clear_dirty) { clear_page_dirty_for_io(page); - set_page_writeback(page); + set_page_writeback(page); + } else + set_page_writeback_keepwrite(page); + unlock_page(page); + /* If no buffers on the page are to be written, finish it here */ if (!buffers) end_page_writeback(page); From olaf@sgi.com Mon Sep 15 02:16:30 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B4A6E7F4E for ; Mon, 15 Sep 2014 02:16:30 -0500 (CDT) Received: from xmail.sgi.com (pv-excas1-dc21.corp.sgi.com [137.38.106.7]) by relay1.corp.sgi.com (Postfix) with ESMTP id 91B588F8040; Mon, 15 Sep 2014 00:16:27 -0700 (PDT) Received: from [144.253.208.65] (144.253.208.65) by xmail.sgi.com (137.38.106.6) with Microsoft SMTP Server (TLS) id 14.3.195.1; Mon, 15 Sep 2014 02:16:26 -0500 Message-ID: <54169248.1090105@sgi.com> Date: Mon, 15 Sep 2014 09:16:24 +0200 From: Olaf Weber Organization: SGI User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.1 MIME-Version: 1.0 To: Christoph Hellwig CC: Dave Chinner , Ben Myers , , Subject: Re: [RFC] Unicode/UTF-8 support for XFS References: <20140911203735.GA19952@sgi.com> <20140912100230.GB4267@dastard> <5412DF37.9030005@sgi.com> <20140912205528.GB11717@infradead.org> In-Reply-To: <20140912205528.GB11717@infradead.org> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [144.253.208.65] On 12-09-14 22:55, Christoph Hellwig wrote: > On Fri, Sep 12, 2014 at 01:55:35PM +0200, Olaf Weber wrote: >> I looked up those discussions in the archives. For example, here's >> Christoph about rejecting filenames if they're not well-formed unicode. >> http://marc.info/?l=linux-fsdevel&m=120876935526856&w=2 >> And Jamie Lokier making a similar point: >> http://oss.sgi.com/archives/xfs/2008-04/msg01263.html > > And I might now disagree with my past self. While non-ut8 characters > are perfectly valid unix filenames, and I think everyones life is easier > if we generally stay out of the utf8 business it seems that for this > particular use case (shared filesystem with Windows, right) just > accepting utf8 should be fine. ZFS is doing, MacOS X apparently is, > and NFSv4 requires it, although as far as I know most implementations > ignore that requirement. > One issue is working in environments that are not UTF-8 clean. For example, unpacking a tarball with non-UTF-8 filenames in it. The names would have to be transcoded, which is only really possible if you know the original character set. And if the filesystem flat out rejects non-UTF-8 filenames, then you'd be unable to unpack the tarball at all. -- Olaf Weber SGI Phone: +31(0)30-6696796 Veldzigt 2b Fax: +31(0)30-6696799 Technical Lead 3454 PW de Meern Vnet: 955-6796 Storage Software The Netherlands Email: olaf@sgi.com From bfoster@redhat.com Mon Sep 15 08:18:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E410A7F4E for ; Mon, 15 Sep 2014 08:18:37 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id B5863304059 for ; Mon, 15 Sep 2014 06:18:34 -0700 (PDT) X-ASG-Debug-ID: 1410787113-04bdf0109aa74600001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id f590P2BDMVvCONPO (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 15 Sep 2014 06:18:33 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8FDIPEj023976 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 15 Sep 2014 09:18:25 -0400 Received: from laptop.bfoster (vpn-51-35.rdu2.redhat.com [10.10.51.35]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8FDIMwh026767 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Mon, 15 Sep 2014 09:18:24 -0400 Date: Mon, 15 Sep 2014 09:18:22 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH v2 0/5] clean up collapse range and handle post-eof delalloc Message-ID: <20140915131822.GA4143@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH v2 0/5] clean up collapse range and handle post-eof delalloc References: <1410355231-50495-1-git-send-email-bfoster@redhat.com> <20140911044243.GA10111@dastard> <20140911152012.GB54638@bfoster.bfoster> <20140911211915.GA4322@dastard> <20140912195128.GA42029@bfoster.bfoster> <20140912200536.GB42029@bfoster.bfoster> <20140915014654.GD4267@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140915014654.GD4267@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410787113 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Sep 15, 2014 at 11:46:54AM +1000, Dave Chinner wrote: > On Fri, Sep 12, 2014 at 04:05:36PM -0400, Brian Foster wrote: > > On Fri, Sep 12, 2014 at 03:51:29PM -0400, Brian Foster wrote: > > > On Fri, Sep 12, 2014 at 07:19:15AM +1000, Dave Chinner wrote: > > > > On Thu, Sep 11, 2014 at 11:20:13AM -0400, Brian Foster wrote: > > > > > On Thu, Sep 11, 2014 at 02:42:43PM +1000, Dave Chinner wrote: > > > > > > On Wed, Sep 10, 2014 at 09:20:26AM -0400, Brian Foster wrote: > > > > > > > Hi all, > > > > > > > > > > > > > > Here's v2 of the collapse clean up. We refactor a bit more via the > > > > > > > insertion of patch 3, otherwise it's similar to v1. This will see some > > > > > > > continued testing, but it survived ~500m fsx operations overnight. > > > > > > > > > > > > > > Brian > > > > > > > > > > > > I'm not sure about the invalidation patch now. On a 1k block size > > > > > > filesystem, generic/127 fails with: > > > > > > > > > > > > +ltp/fsx -q -l 262144 -o 65536 -S 191110531 -N 100000 -R -W fsx_std_nommap > > > > > > +collapse range: 1000 to 3000 > > > > > > +do_collapse_range: fallocate: Device or resource busy > > > > > > > > > > > > which indicates we had an invalidation failure. This is probably > > > > > > exposing some other bug, but I haven't had time to look into it yet > > > > > > so I don't know. > > .... > > > > > It's likely that it is leaving a dirty buffer on the page beyond EOF > > > > as a result of the truncate zeroing the remainder of the page in > > > > memory. > ..... > > > ... and it just hit me that truncate dirties the buffer. ;) > > Exactly. ;) > > > So I'm > > wondering if we have something like the following sequence of events for > > this particular page: > > > > - first pwrite writes to complete page > > - first collapse: > > xfs_collapse_file_space: dev 7:0 ino 0x43 > > > - flush > > xfs_map_blocks_alloc: dev 7:0 ino 0x43 size 0x0 offset 0x2d000 count 1024 type startoff 0xb4 startblock 32 blockcount 0x38 > xfs_extlist: dev 7:0 ino 0x43 state idx 0 offset 180 block 32 count 56 flag 0 caller xfs_iextents_copy > > > - invalidate > > xfs_releasepage: dev 7:0 ino 0x43 pgoff 0x2d000 size 0x3adc0 offset 0 length 0 delalloc 0 unwritten 0 > .... > xfs_releasepage: dev 7:0 ino 0x43 pgoff 0x3a000 size 0x3adc0 offset 0 length 0 delalloc 0 unwritten 0 > > > - truncate -> dirty last buffer of page > > xfs_setattr: dev 7:0 ino 0x43 > .... > xfs_invalidatepage: dev 7:0 ino 0x43 pgoff 0x30000 size 0x30dc0 offset dc0 length 240 delalloc 0 unwritten 0 > .... > xfs_itruncate_extents_start: dev 7:0 ino 0x43 size 0x30dc0 new_size 0x30dc0 > xfs_extlist: dev 7:0 ino 0x43 state idx 0 offset 140 block 32 count 56 flag 0 caller xfs_iextents_copy > > And so we have truncate dirtying the last buffer in the page (the > offset/len indicated by the xfs_invalidatepage tracepoint). > > > - second pwrite writes to first buffer in page (dirty first buffer) > > - flush > > - xfs_convert_page() hits the first buffer, breaks out > > and causes the last buffer to be passed over due to > > the issue below > > - invalidate > > - finds dirty buffer, error! > > > > Brian > > > > > Brian > > > > > > P.S., As a datapoint from experimentation, this problem doesn't occur if > > > I ensure that writepage() handles this particular page rather than > > > xfs_convert_page(). I can do that by either jumping out of > > > xfs_convert_page() sooner, before the page is set for writeback, or > > > hacking xfs_start_page_writeback() to use __test_set_page_writeback() > > > and keep the write tag such that write_cache_pages() can still find the > > > page. > > writepage is still supposed to find the page again, because we > haven't fully cleaned it. Indeed, the code used to come back and > write this page because it was still dirty and the > write_cache_pages() iteration would then see it and write it again > because it is dirty. > > > > This calls out an interesting bit of behavior in > > > xfs_convert_page() since commit a49935f2: if we handle a part of a > > > page, break and mark the page for writeback without handling the rest, > > > we'll still clear the PAGECACHE_TAG_TOWRITE tag and writeback won't > > > finish off the page during the current iteration (for WB_SYNC_ALL). > > Right, commit a49935f2 made the assumption that the page being left > dirty was sufficient to have the page written as the current > writeback sweep went past it. That *used* to be the way the generic > writeback code worked. > > And this is instructive: this same assumption was found in ext4 back > in May i.e. commit 1c8349a ("ext4: fix data integrity sync in > ordered mode") and that introduced the new functions like > __test_set_page_writeback(). That fix wasn't cc'd to linux-fsdevel > which might have got our attention and so noticed the bug earlier... > > > > It's not clear to me if this is contributing to the problem in this > > > particular case, but it seems like an independent bug at the very > > > least. Thoughts? > > We definitely need to use set_page_writeback_keepwrite() for partial > page writes that leave the page dirty. Patch below. > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > xfs: ensure WB_SYNC_ALL writeback handles partial pages correctly > > From: Dave Chinner > > XFS has been having trouble with stray delayed allocation extents > beyond EOF for a long time. Recent changes to the collapse range > code has triggered erroneous EBUSY errors on page invalidtion for > block size smaller than page size filesystems. These > have been caused by dirty buffers beyond EOF on a partial page which > do not get written to disk during a sync. > > The issue is that write-ahead in xfs_cluster_write() finds such a > partial page and handles it by leaving the page dirty but pushing it > into a writeback state. This used to work just fine, as the > write_cache_pages() code would then find the dirty partial page in > the next mapping tree lookup as the dirty tag is still set. > > Unfortunately, when we moved to a mark and sweep approach to > writeback to fix other writeback sync issues, we broken this. THe > act of marking the page as under writeback now clears the TOWRITE > tag in the radix tree, even though the page is still dirty. This > causes the TOWRITE tag to be cleared, and hence the next lookup on > the mapping tree does not find the dirty partial page and so doesn't > try to write it again. > > This same writeback bug was found recently in ext4 and fixed in > commit 1c8349a ("ext4: fix data integrity sync in ordered mode") > without communication to the wider filesystem community. We can use > exactly the same fix here so the TOWRITE flag is not cleared on > partial page writes. > > cc: stable@vger.kernel.org # dependent on 1c8349a17137b93f0a83f276c764a6df1b9a116e > Root-cause-found-by: Brian Foster > Signed-off-by: Dave Chinner > --- Looks good and fixes the collapse failure in my test. Reviewed-by: Brian Foster I suppose we should prepend the collapse rework series with this patch to avoid the regression as it pertains to collapse (obviously the failure to retain towrite goes further back). I'll continue testing with this. Are you still seeing an increase in such failures with the xfs_free_file_space() patch or has this quieted those down? Brian > fs/xfs/xfs_aops.c | 16 ++++++++++++++-- > 1 file changed, 14 insertions(+), 2 deletions(-) > > diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c > index b984647..2f50253 100644 > --- a/fs/xfs/xfs_aops.c > +++ b/fs/xfs/xfs_aops.c > @@ -434,10 +434,22 @@ xfs_start_page_writeback( > { > ASSERT(PageLocked(page)); > ASSERT(!PageWriteback(page)); > - if (clear_dirty) > + > + /* > + * if the page was not fully cleaned, we need to ensure that the higher > + * layers come back to it correctly. That means we need to keep the page > + * dirty, and for WB_SYNC_ALL writeback we need to ensure the > + * PAGECACHE_TAG_TOWRITE index mark is not removed so another attempt to > + * write this page in this writeback sweep will be made. > + */ > + if (clear_dirty) { > clear_page_dirty_for_io(page); > - set_page_writeback(page); > + set_page_writeback(page); > + } else > + set_page_writeback_keepwrite(page); > + > unlock_page(page); > + > /* If no buffers on the page are to be written, finish it here */ > if (!buffers) > end_page_writeback(page); > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From sandeen@redhat.com Mon Sep 15 16:26:53 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 1AA6C7F4E for ; Mon, 15 Sep 2014 16:26:53 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id EDCFB8F8052 for ; Mon, 15 Sep 2014 14:26:49 -0700 (PDT) X-ASG-Debug-ID: 1410816407-04bdf0109aa93110001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id dHoXCZMWK3RZUQiW (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 15 Sep 2014 14:26:47 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8FLQlE1012915 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Mon, 15 Sep 2014 17:26:47 -0400 Received: from liberator.sandeen.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8FLQjZI020572 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Mon, 15 Sep 2014 17:26:46 -0400 Message-ID: <54175996.10303@redhat.com> Date: Mon, 15 Sep 2014 16:26:46 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss Subject: [PATCH] xfsprogs: add supported file attributes to xfs.5 manpage Content-Type: text/plain; charset=utf-8 X-ASG-Orig-Subj: [PATCH] xfsprogs: add supported file attributes to xfs.5 manpage Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410816407 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The chattr(1) manpage suffers from the same problems mount(1) had: many options listed, not kept up to date for various filesystems. I've submitted a manpage update for chattr(1) which says to refer to filesystem-specific manpages for supported attributes; this patch updates xfs(5) to list the attributes supported by xfs. Signed-off-by: Eric Sandeen --- diff --git a/man/man5/xfs.5 b/man/man5/xfs.5 index 5e47c4c..3214455 100644 --- a/man/man5/xfs.5 +++ b/man/man5/xfs.5 @@ -1,6 +1,6 @@ .TH xfs 5 .SH NAME -xfs \- layout and mount options for the XFS filesystem +xfs \- layout, mount options, and supported file attributes for the XFS filesystem .SH DESCRIPTION An XFS filesystem can reside on a regular disk partition or on a logical volume. @@ -302,7 +302,27 @@ namespace is on stable storage. This is useful in HA setups where failover must not result in clients seeing inconsistent namespace presentation during or after a failover event. +.SH FILE ATTRIBUTES +The XFS filesystem supports setting the following file +attributes on Linux systems using the +.BR chattr (1) +utility: +.sp +.BR a " - append only" +.sp +.BR A " - no atime updates" +.sp +.BR d " - no dump" +.sp +.BR i " - immutable" +.sp +.BR S " - synchronous updates" +.sp +For descriptions of these attribute flags, please refer to the +.BR chattr (1) +man page. .SH SEE ALSO +.BR chattr (1), .BR xfsctl (3), .BR mount (8), .BR mkfs.xfs (8), From david@fromorbit.com Mon Sep 15 17:55:41 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 5327B7F4E for ; Mon, 15 Sep 2014 17:55:41 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 0F4E08F8068 for ; Mon, 15 Sep 2014 15:55:40 -0700 (PDT) X-ASG-Debug-ID: 1410821738-04bdf01097a96c40001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id uB2AwDjotk8E6hcu for ; Mon, 15 Sep 2014 15:55:39 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtZDACJtF1R5LCtmPGdsb2JhbABggw2BKoczrCAGmHqFawICAQEBgRoXBQEBAQE4N4QDAQEBAwE6DQ8jBQsIAw4HAwklDwUlAwcaExSIIgeqbpBCGBiFZIlRB4MugR0FnQeZMCsvgkoBAQE Received: from ppp121-44-43-102.lns20.syd6.internode.on.net (HELO dastard) ([121.44.43.102]) by ipmail04.adl6.internode.on.net with ESMTP; 16 Sep 2014 08:25:37 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XTfBH-00089C-AO; Tue, 16 Sep 2014 08:55:35 +1000 Date: Tue, 16 Sep 2014 08:55:35 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH v2 0/5] clean up collapse range and handle post-eof delalloc Message-ID: <20140915225535.GF4267@dastard> X-ASG-Orig-Subj: Re: [PATCH v2 0/5] clean up collapse range and handle post-eof delalloc References: <1410355231-50495-1-git-send-email-bfoster@redhat.com> <20140911044243.GA10111@dastard> <20140911152012.GB54638@bfoster.bfoster> <20140911211915.GA4322@dastard> <20140912195128.GA42029@bfoster.bfoster> <20140912200536.GB42029@bfoster.bfoster> <20140915014654.GD4267@dastard> <20140915131822.GA4143@laptop.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140915131822.GA4143@laptop.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1410821738 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9528 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Sep 15, 2014 at 09:18:22AM -0400, Brian Foster wrote: > On Mon, Sep 15, 2014 at 11:46:54AM +1000, Dave Chinner wrote: > > xfs: ensure WB_SYNC_ALL writeback handles partial pages correctly > > > > From: Dave Chinner > > > > XFS has been having trouble with stray delayed allocation extents > > beyond EOF for a long time. Recent changes to the collapse range > > code has triggered erroneous EBUSY errors on page invalidtion for > > block size smaller than page size filesystems. These > > have been caused by dirty buffers beyond EOF on a partial page which > > do not get written to disk during a sync. > > > > The issue is that write-ahead in xfs_cluster_write() finds such a > > partial page and handles it by leaving the page dirty but pushing it > > into a writeback state. This used to work just fine, as the > > write_cache_pages() code would then find the dirty partial page in > > the next mapping tree lookup as the dirty tag is still set. > > > > Unfortunately, when we moved to a mark and sweep approach to > > writeback to fix other writeback sync issues, we broken this. THe > > act of marking the page as under writeback now clears the TOWRITE > > tag in the radix tree, even though the page is still dirty. This > > causes the TOWRITE tag to be cleared, and hence the next lookup on > > the mapping tree does not find the dirty partial page and so doesn't > > try to write it again. > > > > This same writeback bug was found recently in ext4 and fixed in > > commit 1c8349a ("ext4: fix data integrity sync in ordered mode") > > without communication to the wider filesystem community. We can use > > exactly the same fix here so the TOWRITE flag is not cleared on > > partial page writes. > > > > cc: stable@vger.kernel.org # dependent on 1c8349a17137b93f0a83f276c764a6df1b9a116e > > Root-cause-found-by: Brian Foster > > Signed-off-by: Dave Chinner > > --- > > Looks good and fixes the collapse failure in my test. > > Reviewed-by: Brian Foster > > I suppose we should prepend the collapse rework series with this patch > to avoid the regression as it pertains to collapse (obviously the > failure to retain towrite goes further back). Agreed, I will do that. > I'll continue testing with this. Are you still seeing an increase in > such failures with the xfs_free_file_space() patch or has this quieted > those down? To early to sayi for sure, but signs are good - I've had xfstests actually complete without any stray delalloc asserts occurring on 1k block size filesystems for the first time in a couple of weeks. Cheers, Dave. -- Dave Chinner david@fromorbit.com From debbugs@buxtehude.debian.org Mon Sep 15 18:09:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=3.0 required=5.0 tests=TVD_SUBJ_NUM_OBFU_MINFP autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 74CD47F51 for ; Mon, 15 Sep 2014 18:09:19 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 61B2F304039 for ; Mon, 15 Sep 2014 16:09:16 -0700 (PDT) X-ASG-Debug-ID: 1410822554-04cbb05488de4880001-NocioJ Received: from buxtehude.debian.org (buxtehude.debian.org [140.211.166.26]) by cuda.sgi.com with ESMTP id ZH82HLfGA0rFkojy (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO) for ; Mon, 15 Sep 2014 16:09:14 -0700 (PDT) X-Barracuda-Envelope-From: debbugs@buxtehude.debian.org X-Barracuda-Apparent-Source-IP: 140.211.166.26 Received: from debbugs by buxtehude.debian.org with local (Exim 4.80) (envelope-from ) id 1XTfOR-00067a-Sk; Mon, 15 Sep 2014 23:09:11 +0000 X-Loop: owner@bugs.debian.org Subject: Bug#757455: please run dh_autoreconf or manually update m4/libtool.m4 for ppc64el Reply-To: Dave Chinner , 757455@bugs.debian.org X-ASG-Orig-Subj: Bug#757455: please run dh_autoreconf or manually update m4/libtool.m4 for ppc64el Resent-From: Dave Chinner Resent-To: debian-bugs-dist@lists.debian.org Resent-Cc: XFS Development Team X-Loop: owner@bugs.debian.org Resent-Date: Mon, 15 Sep 2014 23:09:08 +0000 Resent-Message-ID: X-Debian-PR-Message: followup 757455 X-Debian-PR-Package: src:xfsprogs X-Debian-PR-Keywords: X-Debian-PR-Source: xfsprogs Received: via spool by 757455-submit@bugs.debian.org id=B757455.141082230222068 (code B ref 757455); Mon, 15 Sep 2014 23:09:08 +0000 Received: (at 757455) by bugs.debian.org; 15 Sep 2014 23:05:02 +0000 Received: from ipmail04.adl6.internode.on.net ([150.101.137.141]) by buxtehude.debian.org with esmtp (Exim 4.80) (envelope-from ) id 1XTfKQ-0005jM-FI for 757455@bugs.debian.org; Mon, 15 Sep 2014 23:05:02 +0000 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AopDALdvF1R5LCtmPGdsb2JhbABggw1TV7NUBpcZgWGFawICAQEBgRsXBQEBAQE4N4QEAQEEOhwjEAgDDgoJJQ8FJQMHAxcBEog9uywBFxiFZIdBghAHhEsFlgSHA4wxiyqBVSsvgkoBAQE Received: from ppp121-44-43-102.lns20.syd6.internode.on.net (HELO dastard) ([121.44.43.102]) by ipmail04.adl6.internode.on.net with ESMTP; 16 Sep 2014 08:34:58 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XTfKK-0008D3-V3; Tue, 16 Sep 2014 09:04:57 +1000 Date: Tue, 16 Sep 2014 09:04:56 +1000 From: Dave Chinner To: Andreas Barth , 757455@bugs.debian.org Cc: Matthias Klose Message-ID: <20140915230456.GG4267@dastard> References: <53E4C0A5.8060704@debian.org> <20140910142226.GA32059@mails.so.argh.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140910142226.GA32059@mails.so.argh.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: buxtehude.debian.org[140.211.166.26] X-Barracuda-Start-Time: 1410822554 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9528 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Sep 10, 2014 at 04:22:26PM +0200, Andreas Barth wrote: > * Matthias Klose (doko@debian.org) [140910 14:19]: > > trying to use dh_autoreconf: > > It works with the following patch: > diff -ur xfsprogs-3.2.1~/debian/control xfsprogs-3.2.1/debian/control > --- xfsprogs-3.2.1~/debian/control 2014-05-02 00:09:15.000000000 +0000 > +++ xfsprogs-3.2.1/debian/control 2014-09-10 14:14:34.026319172 +0000 > @@ -3,7 +3,7 @@ > Priority: optional > Maintainer: XFS Development Team > Uploaders: Nathan Scott , Anibal Monsalve Salazar > -Build-Depends: uuid-dev, autoconf, debhelper (>= 5), gettext, libtool, libreadline-gplv2-dev | libreadline5-dev, libblkid-dev (>= 2.17), linux-libc-dev, autotools-dev > +Build-Depends: uuid-dev, dh-autoreconf, debhelper (>= 5), gettext, libtool, libreadline-gplv2-dev | libreadline5-dev, libblkid-dev (>= 2.17), linux-libc-dev > Standards-Version: 3.9.1 > Homepage: http://oss.sgi.com/projects/xfs/ > > diff -ur xfsprogs-3.2.1~/debian/rules xfsprogs-3.2.1/debian/rules > --- xfsprogs-3.2.1~/debian/rules 2014-05-02 00:09:15.000000000 +0000 > +++ xfsprogs-3.2.1/debian/rules 2014-09-10 14:13:18.182294515 +0000 > @@ -35,7 +35,7 @@ > .census: > @echo "== dpkg-buildpackage: configure" 1>&2 > $(checkdir) > - dh_autotools-dev_updateconfig > + AUTOHEADER=/bin/true dh_autoreconf > $(options) $(MAKE) include/platform_defs.h > touch .census > > @@ -58,7 +58,7 @@ > $(MAKE) distclean > -rm -rf $(dirme) $(dirdev) $(dirdi) > -rm -f debian/*substvars debian/files* debian/*.debhelper > - dh_autotools-dev_restoreconfig > + dh_autoreconf_clean > dh_clean > > binary-indep: > > As this package is required to build ceph, libvirt and redhat-cluster > I'd be willing to help fixing it, if required also by an NMU. Unless > there is a reason why not, I intend to upload the fix within the next > days. The debian packaging is maintained in the upstream repository. Can you please send the patch to xfs@oss.sgi.com with a commit message and a SOB so we can apply it? Cheers, Dave. -- Dave Chinner david@fromorbit.com From janecek@atrey.karlin.mff.cuni.cz Mon Sep 15 22:52:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id EB7137F53 for ; Mon, 15 Sep 2014 22:52:39 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 9A1608F8039 for ; Mon, 15 Sep 2014 20:52:36 -0700 (PDT) X-ASG-Debug-ID: 1410839552-04bdf010a0aa3180001-NocioJ Received: from atrey.karlin.mff.cuni.cz (atrey.karlin.mff.cuni.cz [195.113.26.193]) by cuda.sgi.com with ESMTP id XOXT1BTqWUF29aKr for ; Mon, 15 Sep 2014 20:52:33 -0700 (PDT) X-Barracuda-Envelope-From: janecek@atrey.karlin.mff.cuni.cz X-Barracuda-Apparent-Source-IP: 195.113.26.193 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 16216) id 9A64E81C2B; Tue, 16 Sep 2014 05:52:31 +0200 (CEST) Date: Tue, 16 Sep 2014 05:52:31 +0200 From: Petr Janecek To: xfs@oss.sgi.com Subject: possible irq lock inversion dependency detected on 3.16.2 Message-ID: <20140916035230.GA7100@atrey.karlin.mff.cuni.cz> X-ASG-Orig-Subj: possible irq lock inversion dependency detected on 3.16.2 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: atrey.karlin.mff.cuni.cz[195.113.26.193] X-Barracuda-Start-Time: 1410839552 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9534 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hello, this happened during nightly ext4 -> xfs rsync, both of them on lvm on md raid1. I would happily provide more info if needed. Probably not easy to reproduce, same job has been running daily since January. Regards, Petr [ 5935.518518] [ INFO: possible irq lock inversion dependency detected ] [ 5935.524971] 3.16.2 #59 Not tainted [ 5935.528381] --------------------------------------------------------- [ 5935.534826] kswapd0/66 just changed the state of lock: [ 5935.539999] (&xfs_dir_ilock_class){++++-+}, at: [] xfs_ilock+0x9a/0xda [xfs] [ 5935.548866] but this lock took another, RECLAIM_FS-unsafe lock in the past: [ 5935.555862] (&mm->mmap_sem){++++++} [ 5935.555862] [ 5935.555862] and interrupts could create inverse lock ordering between them. [ 5935.555862] [ 5935.565508] [ 5935.565508] other info that might help us debug this: [ 5935.572057] Possible interrupt unsafe locking scenario: [ 5935.572057] [ 5935.578880] CPU0 CPU1 [ 5935.583438] ---- ---- [ 5935.587994] lock(&mm->mmap_sem); [ 5935.591459] local_irq_disable(); [ 5935.597399] lock(&xfs_dir_ilock_class); [ 5935.603991] lock(&mm->mmap_sem); [ 5935.609976] [ 5935.612619] lock(&xfs_dir_ilock_class); [ 5935.616864] [ 5935.616864] *** DEADLOCK *** [ 5935.616864] [ 5935.622834] 3 locks held by kswapd0/66: [ 5935.626695] #0: (shrinker_rwsem){++++..}, at: [] shrink_slab+0x39/0x137 [ 5935.635209] #1: (&type->s_umount_key#30){.+.+.+}, at: [] grab_super_passive+0x4c/0x76 [ 5935.644963] #2: (&pag->pag_ici_reclaim_lock){+.+...}, at: [] xfs_reclaim_inodes_ag+0x6a/0x279 [xfs] [ 5935.655929] [ 5935.655929] the shortest dependencies between 2nd lock and 1st lock: [ 5935.663824] -> (&mm->mmap_sem){++++++} ops: 488821045 { [ 5935.669303] HARDIRQ-ON-W at: [ 5935.672577] [] __lock_acquire+0x345/0xe77 [ 5935.680130] [] lock_acquire+0xd8/0x11a [ 5935.687415] [] down_write+0x3f/0x5b [ 5935.694432] [] do_execve_common.isra.27+0x25a/0x5ca [ 5935.702850] [] do_execve+0x13/0x15 [ 5935.709781] [] run_init_process+0x26/0x28 [ 5935.717333] [] kernel_init+0x3d/0xda [ 5935.724436] [] ret_from_fork+0x7c/0xb0 [ 5935.731722] HARDIRQ-ON-R at: [ 5935.735056] [] __lock_acquire+0x31c/0xe77 [ 5935.742634] [] lock_acquire+0xd8/0x11a [ 5935.749920] [] might_fault+0x82/0xa5 [ 5935.757023] [] __clear_user+0x12/0x56 [ 5935.764213] [] clear_user+0x29/0x2b [ 5935.771228] [] padzero+0x1e/0x2b [ 5935.777984] [] load_elf_binary+0x920/0xd15 [ 5935.785693] [] search_binary_handler+0x6f/0x167 [ 5935.793862] [] load_script+0x1aa/0x1bc [ 5935.801145] [] search_binary_handler+0x6f/0x167 [ 5935.809264] [] do_execve_common.isra.27+0x43c/0x5ca [ 5935.817682] [] do_execve+0x13/0x15 [ 5935.824654] [] run_init_process+0x26/0x28 [ 5935.832200] [] kernel_init+0x3d/0xda [ 5935.839327] [] ret_from_fork+0x7c/0xb0 [ 5935.846646] SOFTIRQ-ON-W at: [ 5935.849922] [] __lock_acquire+0x367/0xe77 [ 5935.857509] [] lock_acquire+0xd8/0x11a [ 5935.864803] [] down_write+0x3f/0x5b [ 5935.871820] [] do_execve_common.isra.27+0x25a/0x5ca [ 5935.880230] [] do_execve+0x13/0x15 [ 5935.887219] [] run_init_process+0x26/0x28 [ 5935.900221] [] kernel_init+0x3d/0xda [ 5935.907359] [] ret_from_fork+0x7c/0xb0 [ 5935.914730] SOFTIRQ-ON-R at: [ 5935.918005] [] __lock_acquire+0x367/0xe77 [ 5935.925593] [] lock_acquire+0xd8/0x11a [ 5935.932877] [] might_fault+0x82/0xa5 [ 5935.939970] [] __clear_user+0x12/0x56 [ 5935.947160] [] clear_user+0x29/0x2b [ 5935.954176] [] padzero+0x1e/0x2b [ 5935.960932] [] load_elf_binary+0x920/0xd15 [ 5935.968564] [] search_binary_handler+0x6f/0x167 [ 5935.976628] [] load_script+0x1aa/0x1bc [ 5935.983914] [] search_binary_handler+0x6f/0x167 [ 5935.991995] [] do_execve_common.isra.27+0x43c/0x5ca [ 5936.000413] [] do_execve+0x13/0x15 [ 5936.007344] [] run_init_process+0x26/0x28 [ 5936.014913] [] kernel_init+0x3d/0xda [ 5936.022052] [] ret_from_fork+0x7c/0xb0 [ 5936.029337] RECLAIM_FS-ON-W at: [ 5936.032868] [] mark_held_locks+0x54/0x76 [ 5936.040583] [] lockdep_trace_alloc+0xc3/0xcd [ 5936.048643] [] __alloc_pages_nodemask+0x8d/0x878 [ 5936.057123] [] alloc_pages_current+0xc9/0xe6 [ 5936.065177] [] __pmd_alloc+0x1d/0xec [ 5936.072541] [] move_page_tables+0x1b0/0x505 [ 5936.080528] [] shift_arg_pages+0xa3/0x14d [ 5936.088358] [] setup_arg_pages+0x1c0/0x1f0 [ 5936.096240] [] load_elf_binary+0x397/0xd15 [ 5936.104123] [] search_binary_handler+0x6f/0x167 [ 5936.112437] [] load_script+0x1aa/0x1bc [ 5936.119966] [] search_binary_handler+0x6f/0x167 [ 5936.128290] [] do_execve_common.isra.27+0x43c/0x5ca [ 5936.136951] [] do_execve+0x13/0x15 [ 5936.144124] [] run_init_process+0x26/0x28 [ 5936.151919] [] kernel_init+0x3d/0xda [ 5936.159272] [] ret_from_fork+0x7c/0xb0 [ 5936.166826] RECLAIM_FS-ON-R at: [ 5936.170351] [] mark_held_locks+0x54/0x76 [ 5936.178070] [] lockdep_trace_alloc+0xc3/0xcd [ 5936.186125] [] __alloc_pages_nodemask+0x8d/0x878 [ 5936.194535] [] alloc_pages_current+0xc9/0xe6 [ 5936.202590] [] __get_free_pages+0x9/0x36 [ 5936.210300] [] get_zeroed_page+0x11/0x13 [ 5936.218010] [] __pud_alloc+0x1b/0x76 [ 5936.225373] [] pud_alloc+0x25/0x30 [ 5936.232545] [] handle_mm_fault+0x98/0x818 [ 5936.240340] [] __do_page_fault+0x36f/0x3bb [ 5936.248221] [] do_page_fault+0xc/0xe [ 5936.255584] [] page_fault+0x22/0x30 [ 5936.262853] [] clear_user+0x29/0x2b [ 5936.270129] [] padzero+0x1e/0x2b [ 5936.277128] [] load_elf_binary+0x920/0xd15 [ 5936.285010] [] search_binary_handler+0x6f/0x167 [ 5936.293325] [] load_script+0x1aa/0x1bc [ 5936.300852] [] search_binary_handler+0x6f/0x167 [ 5936.309168] [] do_execve_common.isra.27+0x43c/0x5ca [ 5936.317829] [] do_execve+0x13/0x15 [ 5936.325002] [] run_init_process+0x26/0x28 [ 5936.332797] [] kernel_init+0x3d/0xda [ 5936.340152] [] ret_from_fork+0x7c/0xb0 [ 5936.347686] INITIAL USE at: [ 5936.350866] [] __lock_acquire+0x3ae/0xe77 [ 5936.358308] [] lock_acquire+0xd8/0x11a [ 5936.365478] [] down_write+0x3f/0x5b [ 5936.372401] [] do_execve_common.isra.27+0x25a/0x5ca [ 5936.380715] [] do_execve+0x13/0x15 [ 5936.387541] [] run_init_process+0x26/0x28 [ 5936.394989] [] kernel_init+0x3d/0xda [ 5936.401988] [] ret_from_fork+0x7c/0xb0 [ 5936.409160] } [ 5936.410927] ... key at: [] __key.48993+0x0/0x8 [ 5936.417581] ... acquired at: [ 5936.420654] [] lock_acquire+0xd8/0x11a [ 5936.426268] [] might_fault+0x82/0xa5 [ 5936.431708] [] filldir+0x84/0xf7 [ 5936.436802] [] dir_emit+0x13/0x1a [xfs] [ 5936.442520] [] xfs_dir2_block_getdents+0x145/0x190 [xfs] [ 5936.449716] [] xfs_readdir+0xfc/0x15a [xfs] [ 5936.455815] [] xfs_file_readdir+0x26/0x35 [xfs] [ 5936.462225] [] iterate_dir+0x88/0x11a [ 5936.467759] [] SyS_getdents+0x76/0xd2 [ 5936.473285] [] system_call_fastpath+0x16/0x1b [ 5936.479504] [ 5936.481011] -> (&xfs_dir_ilock_class){++++-+} ops: 462317 { [ 5936.486720] HARDIRQ-ON-W at: [ 5936.489916] [] __lock_acquire+0x345/0xe77 [ 5936.497280] [] lock_acquire+0xd8/0x11a [ 5936.504372] [] down_write_nested+0x45/0x62 [ 5936.511823] [] xfs_ilock+0x9a/0xda [xfs] [ 5936.519117] [] xfs_setattr_nonsize+0x167/0x40a [xfs] [ 5936.527475] [] xfs_vn_setattr+0x55/0x5e [xfs] [ 5936.535192] [] notify_change+0x1f1/0x2d4 [ 5936.542504] [] utimes_common+0x116/0x176 [ 5936.549780] [] do_utimes+0xeb/0x122 [ 5936.556604] [] SyS_utimensat+0x65/0x7f [ 5936.563690] [] system_call_fastpath+0x16/0x1b [ 5936.571399] HARDIRQ-ON-R at: [ 5936.574577] [] __lock_acquire+0x31c/0xe77 [ 5936.581949] [] lock_acquire+0xd8/0x11a [ 5936.589033] [] down_read_nested+0x48/0x57 [ 5936.596398] [] xfs_ilock+0xb2/0xda [xfs] [ 5936.603700] [] xfs_ilock_data_map_shared+0x28/0x2e [xfs] [ 5936.612388] [] xfs_lookup+0x6e/0xfd [xfs] [ 5936.619767] [] xfs_vn_lookup+0x49/0x88 [xfs] [ 5936.627407] [] lookup_real+0x27/0x42 [ 5936.634320] [] __lookup_hash+0x2e/0x37 [ 5936.641405] [] walk_component+0x73/0x17d [ 5936.648681] [] lookup_last+0x2e/0x30 [ 5936.655592] [] path_lookupat+0x8b/0x2c6 [ 5936.662766] [] filename_lookup.isra.27+0x21/0x57 [ 5936.670733] [] user_path_at_empty+0x52/0x90 [ 5936.678270] [] user_path_at+0xc/0xe [ 5936.685104] [] SYSC_faccessat+0x9a/0x182 [ 5936.697629] [] SyS_access+0x13/0x15 [ 5936.704455] [] system_call_fastpath+0x16/0x1b [ 5936.712163] SOFTIRQ-ON-W at: [ 5936.715343] [] __lock_acquire+0x367/0xe77 [ 5936.722730] [] lock_acquire+0xd8/0x11a [ 5936.729817] [] down_write_nested+0x45/0x62 [ 5936.737267] [] xfs_ilock+0x9a/0xda [xfs] [ 5936.744567] [] xfs_setattr_nonsize+0x167/0x40a [xfs] [ 5936.752900] [] xfs_vn_setattr+0x55/0x5e [xfs] [ 5936.760626] [] notify_change+0x1f1/0x2d4 [ 5936.767904] [] utimes_common+0x116/0x176 [ 5936.775185] [] do_utimes+0xeb/0x122 [ 5936.782013] [] SyS_utimensat+0x65/0x7f [ 5936.789099] [] system_call_fastpath+0x16/0x1b [ 5936.796816] SOFTIRQ-ON-R at: [ 5936.799996] [] __lock_acquire+0x367/0xe77 [ 5936.807394] [] lock_acquire+0xd8/0x11a [ 5936.814480] [] down_read_nested+0x48/0x57 [ 5936.821841] [] xfs_ilock+0xb2/0xda [xfs] [ 5936.829150] [] xfs_ilock_data_map_shared+0x28/0x2e [xfs] [ 5936.837840] [] xfs_lookup+0x6e/0xfd [xfs] [ 5936.845220] [] xfs_vn_lookup+0x49/0x88 [xfs] [ 5936.852860] [] lookup_real+0x27/0x42 [ 5936.859771] [] __lookup_hash+0x2e/0x37 [ 5936.866857] [] walk_component+0x73/0x17d [ 5936.874134] [] lookup_last+0x2e/0x30 [ 5936.881049] [] path_lookupat+0x8b/0x2c6 [ 5936.888235] [] filename_lookup.isra.27+0x21/0x57 [ 5936.896239] [] user_path_at_empty+0x52/0x90 [ 5936.903775] [] user_path_at+0xc/0xe [ 5936.910600] [] SYSC_faccessat+0x9a/0x182 [ 5936.917876] [] SyS_access+0x13/0x15 [ 5936.924701] [] system_call_fastpath+0x16/0x1b [ 5936.932410] IN-RECLAIM_FS-W at: [ 5936.935849] [] __lock_acquire+0x396/0xe77 [ 5936.943473] [] lock_acquire+0xd8/0x11a [ 5936.950835] [] down_write_nested+0x45/0x62 [ 5936.958543] [] xfs_ilock+0x9a/0xda [xfs] [ 5936.966106] [] xfs_reclaim_inode+0x2f/0x248 [xfs] [ 5936.974438] [] xfs_reclaim_inodes_ag+0x196/0x279 [xfs] [ 5936.983205] [] xfs_reclaim_inodes_nr+0x2e/0x37 [xfs] [ 5936.991831] [] xfs_fs_free_cached_objects+0x10/0x12 [xfs] [ 5937.000858] [] super_cache_scan+0x128/0x145 [ 5937.008653] [] shrink_slab_node+0x156/0x23b [ 5937.016448] [] shrink_slab+0x78/0x137 [ 5937.023725] [] balance_pgdat+0x317/0x47e [ 5937.031261] [] kswapd+0x30c/0x379 [ 5937.038173] [] kthread+0xb5/0xbd [ 5937.044999] [] ret_from_fork+0x7c/0xb0 [ 5937.052378] RECLAIM_FS-ON-R at: [ 5937.055818] [] mark_held_locks+0x54/0x76 [ 5937.063353] [] lockdep_trace_alloc+0xc3/0xcd [ 5937.071236] [] __alloc_pages_nodemask+0x8d/0x878 [ 5937.079465] [] alloc_pages_vma+0xe0/0x123 [ 5937.087087] [] handle_mm_fault+0x2ea/0x818 [ 5937.094795] [] __do_page_fault+0x36f/0x3bb [ 5937.102506] [] do_page_fault+0xc/0xe [ 5937.109677] [] page_fault+0x22/0x30 [ 5937.116763] [] dir_emit+0x13/0x1a [xfs] [ 5937.124228] [] xfs_dir2_block_getdents+0x145/0x190 [xfs] [ 5937.133170] [] xfs_readdir+0xfc/0x15a [xfs] [ 5937.141002] [] xfs_file_readdir+0x26/0x35 [xfs] [ 5937.149166] [] iterate_dir+0x88/0x11a [ 5937.156442] [] SyS_getdents+0x76/0xd2 [ 5937.163718] [] system_call_fastpath+0x16/0x1b [ 5937.171689] INITIAL USE at: [ 5937.174781] [] __lock_acquire+0x3ae/0xe77 [ 5937.182056] [] lock_acquire+0xd8/0x11a [ 5937.189059] [] down_read_nested+0x48/0x57 [ 5937.196339] [] xfs_ilock+0xb2/0xda [xfs] [ 5937.203539] [] xfs_ilock_data_map_shared+0x28/0x2e [xfs] [ 5937.212138] [] xfs_lookup+0x6e/0xfd [xfs] [ 5937.219441] [] xfs_vn_lookup+0x49/0x88 [xfs] [ 5937.226987] [] lookup_real+0x27/0x42 [ 5937.233812] [] __lookup_hash+0x2e/0x37 [ 5937.240811] [] walk_component+0x73/0x17d [ 5937.247981] [] lookup_last+0x2e/0x30 [ 5937.254808] [] path_lookupat+0x8b/0x2c6 [ 5937.261893] [] filename_lookup.isra.27+0x21/0x57 [ 5937.269809] [] user_path_at_empty+0x52/0x90 [ 5937.277259] [] user_path_at+0xc/0xe [ 5937.283999] [] SYSC_faccessat+0x9a/0x182 [ 5937.291170] [] SyS_access+0x13/0x15 [ 5937.297910] [] system_call_fastpath+0x16/0x1b [ 5937.305540] } [ 5937.307220] ... key at: [] xfs_dir_ilock_class+0x0/0xfffffffffffdb4cf [xfs] [ 5937.316333] ... acquired at: [ 5937.319321] [] check_usage_forwards+0x95/0xa6 [ 5937.325542] [] mark_lock+0x105/0x212 [ 5937.330982] [] __lock_acquire+0x396/0xe77 [ 5937.336890] [] lock_acquire+0xd8/0x11a [ 5937.342500] [] down_write_nested+0x45/0x62 [ 5937.348461] [] xfs_ilock+0x9a/0xda [xfs] [ 5937.354273] [] xfs_reclaim_inode+0x2f/0x248 [xfs] [ 5937.360878] [] xfs_reclaim_inodes_ag+0x196/0x279 [xfs] [ 5937.367889] [] xfs_reclaim_inodes_nr+0x2e/0x37 [xfs] [ 5937.374750] [] xfs_fs_free_cached_objects+0x10/0x12 [xfs] [ 5937.382042] [] super_cache_scan+0x128/0x145 [ 5937.388088] [] shrink_slab_node+0x156/0x23b [ 5937.394168] [] shrink_slab+0x78/0x137 [ 5937.399695] [] balance_pgdat+0x317/0x47e [ 5937.405482] [] kswapd+0x30c/0x379 [ 5937.410661] [] kthread+0xb5/0xbd [ 5937.415756] [] ret_from_fork+0x7c/0xb0 [ 5937.421368] [ 5937.422902] [ 5937.422902] stack backtrace: [ 5937.427330] CPU: 0 PID: 66 Comm: kswapd0 Not tainted 3.16.2 #59 [ 5937.433271] Hardware name: Supermicro X8SIL/X8SIL, BIOS 1.1 05/27/2010 [ 5937.439819] ffff880234a2f6f8 ffff880234a2f688 ffffffff8139835a 0000000000000006 [ 5937.447388] ffffffff81a1bf40 ffff880234a2f6d8 ffffffff81393afc ffffffff810709e0 [ 5937.454898] ffffffff81579064 ffff880234a2f6ec 0000000000000000 ffff880235f51880 [ 5937.462408] Call Trace: [ 5937.464881] [] dump_stack+0x4e/0x68 [ 5937.470042] [] print_irq_inversion_bug.part.36+0x1a1/0x1b0 [ 5937.477214] [] ? noop_count+0xb/0xb [ 5937.482376] [] check_usage_forwards+0x95/0xa6 [ 5937.488405] [] ? check_usage_backwards+0xa0/0xa0 [ 5937.494694] [] mark_lock+0x105/0x212 [ 5937.499944] [] __lock_acquire+0x396/0xe77 [ 5937.505635] [] ? __lock_acquire+0x615/0xe77 [ 5937.516694] [] ? __lock_acquire+0x3ae/0xe77 [ 5937.522550] [] lock_acquire+0xd8/0x11a [ 5937.527997] [] ? xfs_ilock+0x9a/0xda [xfs] [ 5937.533781] [] ? xfs_reclaim_inode+0x2f/0x248 [xfs] [ 5937.540334] [] down_write_nested+0x45/0x62 [ 5937.546160] [] ? xfs_ilock+0x9a/0xda [xfs] [ 5937.551989] [] xfs_ilock+0x9a/0xda [xfs] [ 5937.557622] [] xfs_reclaim_inode+0x2f/0x248 [xfs] [ 5937.564021] [] xfs_reclaim_inodes_ag+0x196/0x279 [xfs] [ 5937.570833] [] ? trace_hardirqs_on_caller+0x145/0x1a1 [ 5937.577562] [] ? trace_hardirqs_on+0xd/0xf [ 5937.583357] [] ? try_to_wake_up+0x1c5/0x1d7 [ 5937.589212] [] ? wake_up_process+0x30/0x34 [ 5937.595007] [] ? xfs_ail_push+0x49/0x4e [xfs] [ 5937.601051] [] xfs_reclaim_inodes_nr+0x2e/0x37 [xfs] [ 5937.607703] [] xfs_fs_free_cached_objects+0x10/0x12 [xfs] [ 5937.614801] [] super_cache_scan+0x128/0x145 [ 5937.620656] [] shrink_slab_node+0x156/0x23b [ 5937.626520] [] shrink_slab+0x78/0x137 [ 5937.631854] [] balance_pgdat+0x317/0x47e [ 5937.637450] [] kswapd+0x30c/0x379 [ 5937.642431] [] ? bit_waitqueue+0x87/0x87 [ 5937.648027] [] ? balance_pgdat+0x47e/0x47e [ 5937.653799] [] kthread+0xb5/0xbd [ 5937.658716] [] ? __kthread_parkme+0x5c/0x5c [ 5937.664596] [] ret_from_fork+0x7c/0xb0 [ 5937.670021] [] ? __kthread_parkme+0x5c/0x5c [ 5937.675900] [sched_delayed] sched: RT throttling activated From sandeen@sandeen.net Tue Sep 16 10:26:47 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0F1457F50 for ; Tue, 16 Sep 2014 10:26:47 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id F0D7A304048 for ; Tue, 16 Sep 2014 08:26:46 -0700 (PDT) X-ASG-Debug-ID: 1410881202-04cbb05488e11ee0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id kjOOu2a8Dfw05kQ8 for ; Tue, 16 Sep 2014 08:26:42 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id B3EB865B096C for ; Tue, 16 Sep 2014 10:26:41 -0500 (CDT) Message-ID: <541856B1.3000009@sandeen.net> Date: Tue, 16 Sep 2014 10:26:41 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss Subject: [PATCH 1/2 V2] xfs_db: fix inode CRC validity state, and warn on read if invalid References: <540B4399.4020804@sandeen.net> X-ASG-Orig-Subj: [PATCH 1/2 V2] xfs_db: fix inode CRC validity state, and warn on read if invalid In-Reply-To: <540B4399.4020804@sandeen.net> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410881202 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9550 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Currently, the "ino_crc_ok" field on the io cursor reflects overall inode validity, not CRC correctness. Because it is only used when printing CRC validity, change it to reflect only that state - and update it whenever we re-write the inode (thus updating the CRC). In addition, when reading an inode, warn if the CRC is bad. Note, when specifying an inode which doesn't actually exist, this will claim corruption; I'm not sure if that's good or bad. Today, it already issues corruption errors on the way; this adds a new message as well: xfs_db> inode 129 Metadata corruption detected at block 0x80/0x2000 Metadata corruption detected at block 0x80/0x2000 ... Metadata CRC error detected for ino 129 Signed-off-by: Eric Sandeen --- V2: fix whitespace damage, introduce libxfs_verify_cksum diff --git a/db/inode.c b/db/inode.c index 24170ba..982acb7 100644 --- a/db/inode.c +++ b/db/inode.c @@ -684,13 +684,18 @@ set_cur_inode( numblks, DB_RING_IGN, NULL); off_cur(offset << mp->m_sb.sb_inodelog, mp->m_sb.sb_inodesize); dip = iocur_top->data; - iocur_top->ino_crc_ok = libxfs_dinode_verify(mp, ino, dip); + iocur_top->ino_crc_ok = libxfs_verify_cksum((char *)dip, + mp->m_sb.sb_inodesize, + XFS_DINODE_CRC_OFF); iocur_top->ino_buf = 1; iocur_top->ino = ino; iocur_top->mode = be16_to_cpu(dip->di_mode); if ((iocur_top->mode & S_IFMT) == S_IFDIR) iocur_top->dirino = ino; + if (xfs_sb_version_hascrc(&mp->m_sb) && !iocur_top->ino_crc_ok) + dbprintf(_("Metadata CRC error detected for ino %lld\n"), ino); + /* track updated info in ring */ ring_add(); } diff --git a/db/io.c b/db/io.c index 7f1b76a..f7393c5 100644 --- a/db/io.c +++ b/db/io.c @@ -464,8 +464,10 @@ write_cur(void) return; } - if (iocur_top->ino_buf) + if (iocur_top->ino_buf) { libxfs_dinode_calc_crc(mp, iocur_top->data); + iocur_top->ino_crc_ok = 1; + } if (iocur_top->dquot_buf) xfs_update_cksum(iocur_top->data, sizeof(struct xfs_dqblk), XFS_DQUOT_CRC_OFF); diff --git a/include/libxfs.h b/include/libxfs.h index 45a924f..962e319 100644 --- a/include/libxfs.h +++ b/include/libxfs.h @@ -782,6 +782,8 @@ extern uint32_t crc32c_le(uint32_t crc, unsigned char const *p, size_t len); #include +#define libxfs_verify_cksum xfs_verify_cksum + static inline int xfs_buf_verify_cksum(struct xfs_buf *bp, unsigned long cksum_offset) { From sandeen@sandeen.net Tue Sep 16 10:29:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 972707F50 for ; Tue, 16 Sep 2014 10:29:19 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 8082D8F8035 for ; Tue, 16 Sep 2014 08:29:16 -0700 (PDT) X-ASG-Debug-ID: 1410881354-04cb6c54ffb40d00001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id OSRPAFANrXFStrfG for ; Tue, 16 Sep 2014 08:29:14 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 5AB7D65B096C for ; Tue, 16 Sep 2014 10:29:14 -0500 (CDT) Message-ID: <5418574A.8040102@sandeen.net> Date: Tue, 16 Sep 2014 10:29:14 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss Subject: [PATCH 2/2 V2] xfs_db: add crc manipulation commands References: <540B4399.4020804@sandeen.net> X-ASG-Orig-Subj: [PATCH 2/2 V2] xfs_db: add crc manipulation commands In-Reply-To: <540B4399.4020804@sandeen.net> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410881354 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9550 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- This adds a new "crc" command to xfs_db for CRC-enabled filesystems. If a structure has a CRC field, we can validate it, invalidate/corrupt it, or revalidate/rewrite it: xfs_db> sb 0 xfs_db> crc -v crc = 0x796c814f (correct) xfs_db> crc -i Metadata CRC error detected at block 0x0/0x200 crc = 0x796c8150 (bad) xfs_db> crc -r crc = 0x796c814f (correct) (-i and -r require "expert" write-capable mode) This requires temporarily replacing the write verifier with a dummy which won't recalculate the CRC on the way to disk. It also required me to write a new flist function, which is totally foreign to me, so hopefully done right - but it seems to work here. Signed-off-by: Eric Sandeen --- Note, "-i" and "-r" are shown in help even if not in expert mode, not sure if I should fix that? V2: Fix whitespace damage, clarify write_cur() changes a bit w/ code & comments. diff --git a/db/Makefile b/db/Makefile index bae6154..f0175cc 100644 --- a/db/Makefile +++ b/db/Makefile @@ -8,7 +8,7 @@ include $(TOPDIR)/include/builddefs LTCOMMAND = xfs_db HFILES = addr.h agf.h agfl.h agi.h attr.h attrshort.h bit.h block.h bmap.h \ - btblock.h bmroot.h check.h command.h convert.h debug.h \ + btblock.h bmroot.h check.h command.h convert.h crc.h debug.h \ dir2.h dir2sf.h dquot.h echo.h faddr.h field.h \ flist.h fprint.h frag.h freesp.h hash.h help.h init.h inode.h input.h \ io.h malloc.h metadump.h output.h print.h quit.h sb.h sig.h strvec.h \ diff --git a/db/command.c b/db/command.c index b7e3165..d44e0a5 100644 --- a/db/command.c +++ b/db/command.c @@ -48,6 +48,7 @@ #include "write.h" #include "malloc.h" #include "dquot.h" +#include "crc.h" cmdinfo_t *cmdtab; int ncmds; @@ -123,6 +124,7 @@ init_commands(void) bmap_init(); check_init(); convert_init(); + crc_init(); debug_init(); echo_init(); frag_init(); diff --git a/db/crc.c b/db/crc.c new file mode 100644 index 0000000..410f5ff --- /dev/null +++ b/db/crc.c @@ -0,0 +1,189 @@ +/* + * Copyright (c) 2014 Red Hat, Inc. + * All Rights Reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include +#include "addr.h" +#include "command.h" +#include "type.h" +#include "faddr.h" +#include "fprint.h" +#include "field.h" +#include "flist.h" +#include "io.h" +#include "init.h" +#include "output.h" +#include "bit.h" +#include "print.h" + +static int crc_f(int argc, char **argv); +static void crc_help(void); + +static const cmdinfo_t crc_cmd = + { "crc", NULL, crc_f, 0, 1, 0, "[-i|-r|-v]", + N_("manipulate crc values for V5 filesystem structures"), crc_help }; + +void +crc_init(void) +{ + if (xfs_sb_version_hascrc(&mp->m_sb)) + add_command(&crc_cmd); +} + +static void +crc_help(void) +{ + dbprintf(_( +"\n" +" 'crc' validates, invalidates, or recalculates the crc value for\n" +" the current on-disk metadata structures in Version 5 filesystems.\n" +"\n" +" Usage: \"crc [-i|-r|-v]\"\n" +"\n" +)); + +} + +void +xfs_dummy_verify( + struct xfs_buf *bp) +{ + return; +} + +static int +crc_f( + int argc, + char **argv) +{ + const struct xfs_buf_ops *stashed_ops = NULL; + extern char *progname; + const field_t *fields; + const ftattr_t *fa; + flist_t *fl; + int invalidate = 0; + int recalculate = 0; + int validate = 0; + int c; + + if (cur_typ == NULL) { + dbprintf(_("no current type\n")); + return 0; + } + + if (cur_typ->fields == NULL) { + dbprintf(_("current type (%s) is not a structure\n"), + cur_typ->name); + return 0; + } + + if (argc) while ((c = getopt(argc, argv, "irv")) != EOF) { + switch (c) { + case 'i': + invalidate = 1; + break; + case 'r': + recalculate = 1; + break; + case 'v': + validate = 1; + break; + default: + dbprintf(_("bad option for crc command\n")); + return 0; + } + } else + validate = 1; + + if (invalidate + recalculate + validate > 1) { + dbprintf(_("crc command accepts only one option\n")); + return 0; + } + + if ((invalidate || recalculate) && + ((x.isreadonly & LIBXFS_ISREADONLY) || !expert_mode)) { + dbprintf(_("%s not in expert mode, writing disabled\n"), + progname); + return 0; + } + + fields = cur_typ->fields; + + /* if we're a root field type, go down 1 layer to get field list */ + if (fields->name[0] == '\0') { + fa = &ftattrtab[fields->ftyp]; + ASSERT(fa->ftyp == fields->ftyp); + fields = fa->subfld; + } + + /* Search for a CRC field */ + fl = flist_find_ftyp(fields, FLDT_CRC); + if (!fl) { + dbprintf(_("No CRC field found for type %s\n"), cur_typ->name); + return 0; + } + + /* run down the field list and set offsets into the data */ + if (!flist_parse(fields, fl, iocur_top->data, 0)) { + flist_free(fl); + dbprintf(_("parsing error\n")); + return 0; + } + + if (invalidate) { + struct xfs_buf_ops nowrite_ops; + flist_t *sfl; + int bit_length; + int parentoffset; + int crc; + + sfl = fl; + parentoffset = 0; + while (sfl->child) { + parentoffset = sfl->offset; + sfl = sfl->child; + } + ASSERT(sfl->fld->ftyp == FLDT_CRC); + + bit_length = fsize(sfl->fld, iocur_top->data, parentoffset, 0); + bit_length *= fcount(sfl->fld, iocur_top->data, parentoffset); + crc = getbitval(iocur_top->data, sfl->offset, bit_length, BVUNSIGNED); + /* Off by one.. */ + crc = cpu_to_be32(crc + 1); + setbitval(iocur_top->data, sfl->offset, bit_length, &crc); + + /* Temporarily remove write verifier to write a bad CRC */ + stashed_ops = iocur_top->bp->b_ops; + nowrite_ops.verify_read = stashed_ops->verify_read; + nowrite_ops.verify_write = xfs_dummy_verify; + iocur_top->bp->b_ops = &nowrite_ops; + } + + if (invalidate || recalculate) { + write_cur(); + if (stashed_ops) + iocur_top->bp->b_ops = stashed_ops; + /* re-verify to get proper b_error state */ + iocur_top->bp->b_ops->verify_read(iocur_top->bp); + } + + /* And show us what we've got! */ + flist_print(fl); + print_flist(fl); + flist_free(fl); + return 0; +} diff --git a/db/crc.h b/db/crc.h new file mode 100644 index 0000000..80ecec3 --- /dev/null +++ b/db/crc.h @@ -0,0 +1,23 @@ +/* + * Copyright (c) 2014 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 + */ + +struct field; + +extern void crc_init(void); +extern void crc_struct(const field_t *fields, int argc, char **argv); +extern void xfs_dummy_verify(struct xfs_buf *bp); diff --git a/db/flist.c b/db/flist.c index 33f7da7..fa19f70 100644 --- a/db/flist.c +++ b/db/flist.c @@ -411,6 +411,40 @@ flist_split( return v; } +/* + * Given a set of fields, scan for a field of the given type. + * Return an flist leading to the first found field + * of that type. + * Return NULL if no field of the given type is found. + */ +flist_t * +flist_find_ftyp( + const field_t *fields, + fldt_t type) +{ + flist_t *fl; + const field_t *f; + const ftattr_t *fa; + + for (f = fields; f->name; f++) { + fl = flist_make(f->name); + fl->fld = f; + if (f->ftyp == type) + return fl; + fa = &ftattrtab[f->ftyp]; + if (fa->subfld) { + flist_t *nfl; + nfl = flist_find_ftyp(fa->subfld, type); + if (nfl) { + fl->child = nfl; + return fl; + } + } + flist_free(fl); + } + return NULL; +} + static void ftok_free( ftok_t *ft) diff --git a/db/flist.h b/db/flist.h index 5c9fba0..3f4b312 100644 --- a/db/flist.h +++ b/db/flist.h @@ -37,3 +37,4 @@ extern int flist_parse(const struct field *fields, flist_t *fl, void *obj, int startoff); extern void flist_print(flist_t *fl); extern flist_t *flist_scan(char *name); +extern flist_t *flist_find_ftyp(const field_t *fields, fldt_t type); diff --git a/db/io.c b/db/io.c index f7393c5..eb3daa1 100644 --- a/db/io.c +++ b/db/io.c @@ -27,6 +27,7 @@ #include "output.h" #include "init.h" #include "malloc.h" +#include "crc.h" static int pop_f(int argc, char **argv); static void pop_help(void); @@ -459,22 +460,37 @@ write_cur_bbs(void) void write_cur(void) { + int skip_crc = (iocur_top->bp->b_ops->verify_write == xfs_dummy_verify); + if (iocur_sp < 0) { dbprintf(_("nothing to write\n")); return; } - if (iocur_top->ino_buf) { + if (iocur_top->ino_buf && !skip_crc) { libxfs_dinode_calc_crc(mp, iocur_top->data); iocur_top->ino_crc_ok = 1; } - if (iocur_top->dquot_buf) + + if (iocur_top->dquot_buf && !skip_crc) xfs_update_cksum(iocur_top->data, sizeof(struct xfs_dqblk), XFS_DQUOT_CRC_OFF); if (iocur_top->bbmap) write_cur_bbs(); else write_cur_buf(); + + /* If we didn't write the crc automatically, re-check validity */ + if (iocur_top->ino_buf && skip_crc) { + xfs_dinode_t *dip; + xfs_ino_t ino; + + dip = iocur_top->data; + ino = iocur_top->ino; + iocur_top->ino_crc_ok = xfs_verify_cksum((char *)dip, + mp->m_sb.sb_inodesize, + XFS_DINODE_CRC_OFF); + } } void diff --git a/db/write.h b/db/write.h index 31e2665..664ddcc 100644 --- a/db/write.h +++ b/db/write.h @@ -20,5 +20,5 @@ struct field; extern void write_init(void); extern void write_block(const field_t *fields, int argc, char **argv); -extern void write_string(const field_t *fields, int argc, char **argv); extern void write_struct(const field_t *fields, int argc, char **argv); +extern void write_string(const field_t *fields, int argc, char **argv); diff --git a/man/man8/xfs_db.8 b/man/man8/xfs_db.8 index 4d8d4ff..0764832 100644 --- a/man/man8/xfs_db.8 +++ b/man/man8/xfs_db.8 @@ -87,16 +87,14 @@ or .I filename read-only. This option is required if the filesystem is mounted. It is only necessary to omit this flag if a command that changes data -.RB ( write ", " blocktrash ) +.RB ( write ", " blocktrash ", " crc ) is to be used. .TP .B \-x Specifies expert mode. This enables the -.B write -and -.B blocktrash -commands. +.RB ( write ", " blocktrash ", " crc +invalidate/revalidate) commands. .TP .B \-V Prints the version number and exits. @@ -409,6 +407,25 @@ conversions such as .I agb .BR fsblock . .TP +.B crc [\-i|\-r|\-v] +Invalidates, revalidates, or validates the CRC (checksum) +field of the current structure, if it has one. +This command is available only on CRC-enabled filesystems. +With no argument, validation is performed. +Each command will display the resulting CRC value and state. +.RS 1.0i +.TP 0.4i +.B \-i +Invalidate the structure's CRC value (incrementing it by one), +and write it to disk. +.TP +.B \-r +Recalculate the current structure's correct CRC value, and write it to disk. +.TP +.B \-v +Validate and display the current value and state of the structure's CRC. +.RE +.TP .BI "daddr [" d ] Set current address to the daddr (512 byte block) given by .IR d . From alex@zadarastorage.com Tue Sep 16 11:01:32 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C9CBA7F47 for ; Tue, 16 Sep 2014 11:01:32 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 9B0A130405F for ; Tue, 16 Sep 2014 09:01:29 -0700 (PDT) X-ASG-Debug-ID: 1410883286-04bdf010a1acc370001-NocioJ Received: from mail-we0-f174.google.com (mail-we0-f174.google.com [74.125.82.174]) by cuda.sgi.com with ESMTP id vzBfhfoEdhQm0XeI (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Tue, 16 Sep 2014 09:01:27 -0700 (PDT) X-Barracuda-Envelope-From: alex@zadarastorage.com X-Barracuda-Apparent-Source-IP: 74.125.82.174 Received: by mail-we0-f174.google.com with SMTP id t60so58087wes.19 for ; Tue, 16 Sep 2014 09:01:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=nMrWU5iysAzBOowwioHn9pEntXrx9/9LfvydmrXEKV0=; b=UqLstqe0BPuLDydp2lWEidhe9UcEeL0vFhEjuI9QLM/6AKjofLFNlC+XNj8cyR3SNW cU1fCH7EC37OuLFn+yJW2LsIkDlxXVTuB1zkXSzVHMYnkKUAlIywbNeRrDU8Cpc6v1xC rsN+0Oh10k2Sq/o6miq8iWK66gI7CPFZ/l/Dxo7ku2JwgKBk6XH4QtizsF4aqweOJIyC u6EyYnUvXLOKz9GkA8q5SA9vkd39GCi6WUFyWNdiFkxSunWeKa8404OCrFhQr6zgzWML vL9oHdzCxmKWigK1ELVflGMut07mfe/j4eqfPx+H485dXdkbkWiyn7tEyY8U9rxCIung mTVA== X-Gm-Message-State: ALoCoQkhEvjJ/2yHxktqvAbTieFMbtsDDj3hpMIGL7347UYX9yiGVqYx2EBlHtcosYSaCvTZXkl/ MIME-Version: 1.0 X-Received: by 10.181.27.197 with SMTP id ji5mr23068026wid.54.1410883286027; Tue, 16 Sep 2014 09:01:26 -0700 (PDT) Received: by 10.194.15.232 with HTTP; Tue, 16 Sep 2014 09:01:25 -0700 (PDT) In-Reply-To: <20140902220216.GJ20518@dastard> References: <1408648692-15957-1-git-send-email-bfoster@redhat.com> <20140825142025.GA10135@bfoster.bfoster> <20140831210507.GA11913@bfoster.bfoster> <3476A2CBDE694DC6BD06DBDD15165151@alyakaslap> <20140902220216.GJ20518@dastard> Date: Tue, 16 Sep 2014 19:01:25 +0300 Message-ID: Subject: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error From: Alex Lyakas X-ASG-Orig-Subj: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error To: Dave Chinner Cc: Brian Foster , xfs@oss.sgi.com Content-Type: multipart/alternative; boundary=001a1134894815676c050330dd1b X-Barracuda-Connect: mail-we0-f174.google.com[74.125.82.174] X-Barracuda-Start-Time: 1410883286 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE, MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9550 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words 0.00 HTML_MESSAGE BODY: HTML included in message --001a1134894815676c050330dd1b Content-Type: text/plain; charset=UTF-8 Hi Dave, On Wed, Sep 3, 2014 at 1:02 AM, Dave Chinner wrote: > On Tue, Sep 02, 2014 at 12:51:35PM +0300, Alex Lyakas wrote: > > Hi Brian, Dave, > > I tested this patch on 3.8.13 kernel with the scenario I described > > in http://oss.sgi.com/pipermail/xfs/2014-August/037637.html, but I > > still see the issue. > > I placed the metadump at > https://drive.google.com/file/d/0ByBy89zr3kJNV2UxMERNTkE4aHM/edit?usp=sharing > > > > During log recovery, 3 IO errors are encountered: > > [ 340.381199] XFS (dm-0): Mounting Filesystem > > [ 340.439897] XFS (dm-0): Sleep 10s before xlog_do_recover > > [ 350.440143] XFS (dm-0): Starting recovery (logdev: internal) > > [ 351.584647] XFS (dm-0): metadata I/O error: block 0x1 > > ("xlog_recover_iodone") error 28 numblks 1 > > [ 351.584660] XFS (dm-0): metadata I/O error: block 0x40 > > ("xlog_recover_iodone") error 28 numblks 16 > > [ 351.584665] XFS (dm-0): xfs_do_force_shutdown(0x1) called from > > line 377 of file > > /mnt/work/alex/zadara-btrfs/fs/xfs/xfs_log_recover.c. Return > > address = 0xffffffffa0372728 > > [ 351.584969] XFS (dm-0): I/O Error Detected. Shutting down filesystem > > [ 351.584970] XFS (dm-0): Please umount the filesystem and rectify > > the problem(s) > > [ 351.585047] XFS (dm-0): metadata I/O error: block 0x1e00040 > > ("xlog_recover_iodone") error 28 numblks 16 > > [ 351.585050] XFS (dm-0): xfs_do_force_shutdown(0x1) called from > > line 377 of file > > /mnt/work/alex/zadara-btrfs/fs/xfs/xfs_log_recover.c. Return > > address = 0xffffffffa0372728 > > [ 351.585068] XFS (dm-0): log mount/recovery failed: error 28 > > [ 351.585332] XFS (dm-0): log mount failed > > > > Two IO error callbacks are handled before XFS is unmounted, but the > > last one crashes with stack[1]. > > > > Do I need some or all of the 9 patches that Dave posted? (They do > > not apply to my kernel, so I need to apply them by hand). > > No, I suspect that there are other problems that have been fixed > since 3.8 that you are missing. e.g. > > 9c23ecc xfs: unmount does not wait for shutdown during unmount > I applied this patch, and on top of that applied your patch "[PATCH 1/9] xfs: synchronous buffer IO needs a reference". However, the log recovery problem still reproduces. At least with the 9c23ecc patch, the unmount-while-IO-error problems that I reported long ago seem to be fixed. Thanks, Alex. > > THere's bound to be others, so you're really going to need to look > at the differences between 3.8 and a current mainline to determine > what other patches you are going to need... > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > --001a1134894815676c050330dd1b Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi Dave,

On Wed, Sep 3, 2014 at 1:02 AM, Dave Chinner = <david@fromorbi= t.com> wrote:
On Tue, Sep 02, 2014 at 12:51:35PM +0300, Alex Lyaka= s wrote:
> Hi Brian, Dave,
> I tested this patch on 3.8.13 kernel wit= h the scenario I described
> in http://oss.sgi.com/pipermail/xfs/2014-August/037637.htm= l, but I
> still see the issue.
> I placed the metadump at https://dr= ive.google.com/file/d/0ByBy89zr3kJNV2UxMERNTkE4aHM/edit?usp=3Dsharing >
> During log recovery, 3 IO errors are encountered:
> [=C2=A0 340.381199] XFS (dm-0): Mounting Filesystem
> [=C2=A0 340.439897] XFS (dm-0): Sleep 10s before xlog_do_recover
> [=C2=A0 350.440143] XFS (dm-0): Starting recovery (logdev: internal) > [=C2=A0 351.584647] XFS (dm-0): metadata I/O error: block 0x1
> ("xlog_recover_iodone") error 28 numblks 1
> [=C2=A0 351.584660] XFS (dm-0): metadata I/O error: block 0x40
> ("xlog_recover_iodone") error 28 numblks 16
> [=C2=A0 351.584665] XFS (dm-0): xfs_do_force_shutdown(0x1) called from=
> line 377 of file
> /mnt/work/alex/zadara-btrfs/fs/xfs/xfs_log_recover.c.=C2=A0 Return
> address =3D 0xffffffffa0372728
> [=C2=A0 351.584969] XFS (dm-0): I/O Error Detected. Shutting down file= system
> [=C2=A0 351.584970] XFS (dm-0): Please umount the filesystem and recti= fy
> the problem(s)
> [=C2=A0 351.585047] XFS (dm-0): metadata I/O error: block 0x1e00040 > ("xlog_recover_iodone") error 28 numblks 16
> [=C2=A0 351.585050] XFS (dm-0): xfs_do_force_shutdown(0x1) called from=
> line 377 of file
> /mnt/work/alex/zadara-btrfs/fs/xfs/xfs_log_recover.c.=C2=A0 Return
> address =3D 0xffffffffa0372728
> [=C2=A0 351.585068] XFS (dm-0): log mount/recovery failed: error 28 > [=C2=A0 351.585332] XFS (dm-0): log mount failed
>
> Two IO error callbacks are handled before XFS is unmounted, but the > last one crashes with stack[1].
>
> Do I need some or all of the 9 patches that Dave posted? (They do
> not apply to my kernel, so I need to apply them by hand).

No, I suspect that there are other problems that have been fixe= d
since 3.8 that you are missing. e.g.

9c23ecc xfs: unmount does not wait for shutdown during unmount
I applied this patch, and on top of that applied your patch "= [PATCH 1/9] xfs: synchronous buffer IO needs a reference". However, th= e log recovery problem still reproduces.

At least with th= e 9c23ecc patch, the unmount-while-IO-error problems that I reported long a= go seem to be fixed.

Thanks,
Alex.

=
=C2=A0

THere's bound to be others, so you're really going to need to look<= br> at the differences between 3.8 and a current mainline to determine
what other patches you are going to need...

Cheers,

Dave.
--
Dave Chinner
david@fromorbit.com

--001a1134894815676c050330dd1b-- From fabf@skynet.be Tue Sep 16 12:43:14 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 19FF87F47 for ; Tue, 16 Sep 2014 12:43:14 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id ECBE78F8035 for ; Tue, 16 Sep 2014 10:43:10 -0700 (PDT) X-ASG-Debug-ID: 1410889387-04bdf01097ad29d0001-NocioJ Received: from mailrelay005.isp.belgacom.be (mailrelay005.isp.belgacom.be [195.238.6.171]) by cuda.sgi.com with ESMTP id L7IXi6x26cV80WIv for ; Tue, 16 Sep 2014 10:43:09 -0700 (PDT) X-Barracuda-Envelope-From: fabf@skynet.be X-Barracuda-Apparent-Source-IP: 195.238.6.171 X-Belgacom-Dynamic: yes X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AkMOADV2GFRXQAMM/2dsb2JhbABggw2BKrQRBQFvmxiBFBcBeYRgI4EaN4hCAbw0hXyIa2QdhDUFnQqMMYkUg2A7L4EGgUQBAQE Received: from 12.3-64-87.adsl-dyn.isp.belgacom.be (HELO linux-zvq9.site) ([87.64.3.12]) by relay.skynet.be with ESMTP; 16 Sep 2014 19:42:58 +0200 From: Fabian Frederick To: linux-kernel@vger.kernel.org Cc: Fabian Frederick , Dave Chinner , xfs@oss.sgi.com Subject: [PATCH 1/1] xfs: remove second xfs_quota.h inclusion in xfs_icache.c Date: Tue, 16 Sep 2014 19:42:24 +0200 X-ASG-Orig-Subj: [PATCH 1/1] xfs: remove second xfs_quota.h inclusion in xfs_icache.c Message-Id: <1410889344-28339-1-git-send-email-fabf@skynet.be> X-Mailer: git-send-email 2.1.0 X-Barracuda-Connect: mailrelay005.isp.belgacom.be[195.238.6.171] X-Barracuda-Start-Time: 1410889388 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9552 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header xfs_quota.h was included twice. Signed-off-by: Fabian Frederick --- fs/xfs/xfs_icache.c | 1 - 1 file changed, 1 deletion(-) diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c index 981b2cf..b45f7b2 100644 --- a/fs/xfs/xfs_icache.c +++ b/fs/xfs/xfs_icache.c @@ -33,7 +33,6 @@ #include "xfs_trace.h" #include "xfs_icache.h" #include "xfs_bmap_util.h" -#include "xfs_quota.h" #include "xfs_dquot_item.h" #include "xfs_dquot.h" -- 2.1.0 From david@fromorbit.com Tue Sep 16 15:54:23 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id F3B417F47 for ; Tue, 16 Sep 2014 15:54:22 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id DEBDC30404E for ; Tue, 16 Sep 2014 13:54:22 -0700 (PDT) X-ASG-Debug-ID: 1410900860-04cbb05488e23b20001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id N1uLFZaJd10eE0hJ for ; Tue, 16 Sep 2014 13:54:21 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AusfAL6iGFR5LCtm/2dsb2JhbABggw1TV4IssWsGlDmBXYVrBAIBgRMXAXmEBAEBBDocIxAIAxgJJQ8FJQMhExmIJA68bRiFZIc/ghAHhEsFlgSHBYFgik6JGINwKy8BgkkBAQE Received: from ppp121-44-43-102.lns20.syd6.internode.on.net (HELO dastard) ([121.44.43.102]) by ipmail07.adl2.internode.on.net with ESMTP; 17 Sep 2014 06:24:19 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XTzlG-0002r0-Gt; Wed, 17 Sep 2014 06:54:06 +1000 Date: Wed, 17 Sep 2014 06:54:06 +1000 From: Dave Chinner To: Olaf Weber Cc: Christoph Hellwig , Ben Myers , tinguely@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC] Unicode/UTF-8 support for XFS Message-ID: <20140916205406.GJ4322@dastard> X-ASG-Orig-Subj: Re: [RFC] Unicode/UTF-8 support for XFS References: <20140911203735.GA19952@sgi.com> <20140912100230.GB4267@dastard> <5412DF37.9030005@sgi.com> <20140912205528.GB11717@infradead.org> <54169248.1090105@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <54169248.1090105@sgi.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1410900860 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-ASG-Whitelist: Body =?UTF-8?B?aHR0cDovL21hcmNcLmluZm8vXD8=?= X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Sep 15, 2014 at 09:16:24AM +0200, Olaf Weber wrote: > On 12-09-14 22:55, Christoph Hellwig wrote: > >On Fri, Sep 12, 2014 at 01:55:35PM +0200, Olaf Weber wrote: > >>I looked up those discussions in the archives. For example, here's > >>Christoph about rejecting filenames if they're not well-formed unicode. > >> http://marc.info/?l=linux-fsdevel&m=120876935526856&w=2 > >>And Jamie Lokier making a similar point: > >> http://oss.sgi.com/archives/xfs/2008-04/msg01263.html > > > >And I might now disagree with my past self. While non-ut8 characters > >are perfectly valid unix filenames, and I think everyones life is easier > >if we generally stay out of the utf8 business it seems that for this > >particular use case (shared filesystem with Windows, right) just > >accepting utf8 should be fine. ZFS is doing, MacOS X apparently is, > >and NFSv4 requires it, although as far as I know most implementations > >ignore that requirement. > > > > One issue is working in environments that are not UTF-8 clean. For > example, unpacking a tarball with non-UTF-8 filenames in it. The > names would have to be transcoded, which is only really possible if > you know the original character set. And if the filesystem flat out > rejects non-UTF-8 filenames, then you'd be unable to unpack the > tarball at all. So how do existing utf8/unicode enabled filesystems handle this? I think we should be consistent with ZFS, MacOS and others that already deal with this problem if at all possible. However, this really is a wider policy decision for the kernel/VFS as we want consistent behaviour across all linux filesystems, hence this patchset really needs to discussed at the lkml/-fsdevel level... Cheers, Dave. -- Dave Chinner david@fromorbit.com From BATV+c00b5fb9ff0a5cc65cd5+4041+infradead.org+hch@bombadil.srs.infradead.org Tue Sep 16 16:02:41 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0909D7F47 for ; Tue, 16 Sep 2014 16:02:41 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id EA0E2304051 for ; Tue, 16 Sep 2014 14:02:37 -0700 (PDT) X-ASG-Debug-ID: 1410901355-04cb6c54fdb51a50001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id t5hhEBUbbYkD3uIs (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO); Tue, 16 Sep 2014 14:02:35 -0700 (PDT) X-Barracuda-Envelope-From: BATV+c00b5fb9ff0a5cc65cd5+4041+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XTztT-0006g3-7B; Tue, 16 Sep 2014 21:02:35 +0000 Date: Tue, 16 Sep 2014 14:02:35 -0700 From: Christoph Hellwig To: Dave Chinner Cc: Olaf Weber , Ben Myers , tinguely@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC] Unicode/UTF-8 support for XFS Message-ID: <20140916210235.GA24591@infradead.org> X-ASG-Orig-Subj: Re: [RFC] Unicode/UTF-8 support for XFS References: <20140911203735.GA19952@sgi.com> <20140912100230.GB4267@dastard> <5412DF37.9030005@sgi.com> <20140912205528.GB11717@infradead.org> <54169248.1090105@sgi.com> <20140916205406.GJ4322@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140916205406.GJ4322@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1410901355 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9557 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Wed, Sep 17, 2014 at 06:54:06AM +1000, Dave Chinner wrote: > So how do existing utf8/unicode enabled filesystems handle this? > > I think we should be consistent with ZFS, MacOS and others that > already deal with this problem if at all possible. However, this > really is a wider policy decision for the kernel/VFS as we want > consistent behaviour across all linux filesystems, hence this > patchset really needs to discussed at the lkml/-fsdevel level... Absolutely. I've also talked to a few Samba folks at SDC, and one thing they would love to see is conditional case insensitive lookups, e.g.: - we hash case insensitive with collisions, but perform normal case sensitive lookups. - with a new AT_CASE_INSENSTIVE flag to the various *at calls that gets passed down to the dcache we enable CI lookups. From weber@zbfmail.de Tue Sep 16 16:27:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2BD397F47 for ; Tue, 16 Sep 2014 16:27:52 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 173DD8F8052 for ; Tue, 16 Sep 2014 14:27:48 -0700 (PDT) X-ASG-Debug-ID: 1410902866-04cbb05486e24c30001-NocioJ Received: from mail.zbfmail.de (mail.zbfmail.de [176.9.84.12]) by cuda.sgi.com with ESMTP id i8TRdNnhhcKwe6xY (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 16 Sep 2014 14:27:46 -0700 (PDT) X-Barracuda-Envelope-From: weber@zbfmail.de X-Barracuda-Apparent-Source-IP: 176.9.84.12 Received: from mail.zbfmail.de (localhost [127.0.0.1]) by mail.zbfmail.de (Postfix) with ESMTP id 8E66710C084 for ; Tue, 16 Sep 2014 23:27:45 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.9.2 mail.zbfmail.de 8E66710C084 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zbfmail.de; s=dkim; t=1410902865; bh=tEIBvEYi37wHnLmH5O/sMfhMmLcEGq8yzuiN9Sgdmlo=; h=Date:From:To:Subject:Reply-To:In-Reply-To:References; b=iZeKSfApB7RRGtmzKtUFKslrPnGr/j06/bSS3asNXwzrT++xZjAyxMvdfcQi87g90 HgCU7REsTI9EkUrRGPSp+4j1u80nAJdX8drkspY81HYkfLzmizwB78kXnbmY6ObiaJ MKYj3VhVV2dlY2dIgBzOaA538UZOUDLskicApRrE= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Date: Tue, 16 Sep 2014 23:27:45 +0200 From: Marko Weber|8000 To: Xfs Subject: Re: unclean shutdown of usb hdd destroyed xfs partially Organization: zbf mail X-ASG-Orig-Subj: Re: unclean shutdown of usb hdd destroyed xfs partially Reply-To: weber@zbfmail.de Mail-Reply-To: weber@zbfmail.de In-Reply-To: <20140913220916.GC4267@dastard> References: <3999c95c0dc7ebfdfbb2853a6d13f7dc@zbfmail.de> <082ebd288523ee6155b66debade2a775@zbfmail.de> <20140913220916.GC4267@dastard> Message-ID: <330c89398cb4eef9b7289c1ffef8bcc3@zbfmail.de> X-Sender: weber@zbfmail.de User-Agent: Roundcube zbfmail Webmail X-DCC--Metrics: mailserver 1282; Body=1 Fuz1=1 Fuz2=1 X-Barracuda-Connect: mail.zbfmail.de[176.9.84.12] X-Barracuda-Start-Time: 1410902866 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9558 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 Am 2014-09-14 00:09, schrieb Dave Chinner: > On Sat, Sep 13, 2014 at 04:36:59PM +0200, Marko Weber|8000 wrote: >>=20 >> an output of xfs_repair -v -L /dev/sde1 > ... >>=20 >> # xfs_repair -v -L /dev/sde1 >=20 > What version? first it was 3.1.10 later like posted 3.2.1 >=20 >> Phase 1 - Superblock finden und =C3=BCberpr=C3=BCfen... >> - Berichts-Prozess in Abst=C3=A4nden von 15 Minutes >> - Block-Zwischenspeichergr=C3=B6=C3=9Fe ist auf 1487792 Eintr=C3= =A4ge gesetzt >> Phase 2 - ein internes Protokoll benutzen >> - Null-Protokoll... >> zero_log: head block 40 tail block 40 >> - freier Speicher und Inode-Karten des Dateisystems werden >> gescannt... >> bad magic numberbad magic numberbad magic number > .... >> falscher on-disk-Superblock 12 - falsche Magische Nummer >> Metadata corruption detected at block >> 0x20bf8e50/0x1000prim=C3=A4re/sekund=C3=A4rer Superblock-12-Konflikt - >> AG-Superblock-Geometrie-Info hat einen Konflikt mit der >> Dateisystem-Geometrie >> flasche magische # 0x0 f=C3=BCr agf 12 >> falsche Version # 0 f=C3=BCr agf 12 >>=20 >> Metadata corruption detected at block 0x417f1c90/0x1000 >> falscher on-disk-Superblock 6 - falsche Magische Nummer >> prim=C3=A4re/sekund=C3=A4rer Superblock-6-Konflikt - >> AG-Superblock-Geometrie-Info hat einen Konflikt mit der >> Dateisystem-Geometrie >> falscher on-disk-Superblock 3 - falsche Magische Nummer >> ungenutzten Anteil des =C2=BBsekund=C3=A4r=C2=AB-Superblocks nullen (AG = #6) >> Metadata corruption detected at block 0x57542610/0x1000 >> falsche Sequenz # 0 f=C3=BCr agf 12 >> Metadata corruption detected at block >> 0x7813b450/0x1000Speicherzugriffsfehler >=20 > I don't read german(?) but that looks like many AG header block > have been overwritten with zeros (0 magic number, 0 sequence #, 0 > length, etc) and so even if we can repair the filesystem, I'd > suggest that you need to verify that the data in every file in the > filesystem is correct. >=20 > Is that as far as xfs_repair got? If so, it would have appeared to > crash. Can you run the lastest version inside gdb to get a stack > trace when it dies? Or, alternatively, provide a metadump for one of > us to look at more closely? yes, this is as far xfs_repair got it. what is ment 'run latest version in gdb?' gnudebugger? how do i do that?=20 console example needed. and how do i do the metadump? thank you marko >=20 > Cheers, >=20 > Dave. From sandeen@redhat.com Tue Sep 16 16:30:47 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BC1FB7F47 for ; Tue, 16 Sep 2014 16:30:47 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 3F1CAAC008 for ; Tue, 16 Sep 2014 14:30:44 -0700 (PDT) X-ASG-Debug-ID: 1410903042-04cb6c5500b52930001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id dEdX1kMTaKJ6vBoz (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 16 Sep 2014 14:30:43 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8GLUgAc013982 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Tue, 16 Sep 2014 17:30:42 -0400 Received: from liberator.sandeen.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8GLUfi1004047 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Tue, 16 Sep 2014 17:30:41 -0400 Message-ID: <5418AC01.30006@redhat.com> Date: Tue, 16 Sep 2014 16:30:41 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss Subject: [PATCH] xfs_repair: validate & fix inode CRCs Content-Type: text/plain; charset=utf-8 X-ASG-Orig-Subj: [PATCH] xfs_repair: validate & fix inode CRCs Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410903042 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 xfs_repair doesn't ever check an inode's CRC, so it never repairs them. If the root inode or realtime inodes have bad crcs, the fs won't even mount and can't be fixed (without using xfs_db). It's fairly straightforward to just test the inode CRC before we do any other checking or modification of the inode, once we get past the "verify only" phase of process_dinode_int(); just mark it dirty if it's wrong and needs to be re-written. Signed-off-by: Eric Sandeen --- forgive the gratuitous big honkin' comment line, but process_dinode_int is so long, I thought the visual delimiter was useful. ;) diff --git a/repair/dinode.c b/repair/dinode.c index 8891e84..27c0da6 100644 --- a/repair/dinode.c +++ b/repair/dinode.c @@ -2524,6 +2524,30 @@ _("bad (negative) size %" PRId64 " on inode %" PRIu64 "\n"), if (verify_mode) return retval; + /* =========== END OF VERIFY MODE =================== */ + + /* + * We'd really like to know if the CRC is bad before we + * go fixing anything; that way we have some hint about + * bit-rot vs bugs. Also, any changes will invalidate the + * existing CRC, so this is the only valid point to test it. + * + * Of course if we make any modifications after this, the + * inode gets rewritten, and CRC is updated automagically. + */ + if (xfs_sb_version_hascrc(&mp->m_sb)) { + ASSERT(!verify_mode); + if(!xfs_verify_cksum((char *)dino, mp->m_sb.sb_inodesize, + XFS_DINODE_CRC_OFF)) { + do_warn(_("bad CRC for inode %" PRIu64), lino); + if (!no_modify) { + do_warn(_(", will rewrite\n")); + *dirty = 1; + } else + do_warn(_(", would rewrite\n")); + } + } + /* * clear the next unlinked field if necessary on a good * inode only during phase 4 -- when checking for inodes From bpm@sgi.com Tue Sep 16 16:42:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 8B52D7F47 for ; Tue, 16 Sep 2014 16:42:51 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay2.corp.sgi.com (Postfix) with ESMTP id 6595D304048; Tue, 16 Sep 2014 14:42:51 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id D25E24266DC; Tue, 16 Sep 2014 16:42:50 -0500 (CDT) Date: Tue, 16 Sep 2014 16:42:50 -0500 From: Ben Myers To: Christoph Hellwig , Dave Chinner Cc: Olaf Weber , tinguely@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC] Unicode/UTF-8 support for XFS Message-ID: <20140916214250.GU19952@sgi.com> References: <20140911203735.GA19952@sgi.com> <20140912100230.GB4267@dastard> <5412DF37.9030005@sgi.com> <20140912205528.GB11717@infradead.org> <54169248.1090105@sgi.com> <20140916205406.GJ4322@dastard> <20140916210235.GA24591@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140916210235.GA24591@infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) Hey Gents, On Tue, Sep 16, 2014 at 02:02:35PM -0700, Christoph Hellwig wrote: > On Wed, Sep 17, 2014 at 06:54:06AM +1000, Dave Chinner wrote: > > So how do existing utf8/unicode enabled filesystems handle this? > > > > I think we should be consistent with ZFS, MacOS and others that > > already deal with this problem if at all possible. Here's a data point from man(zfs): The following three properties cannot be changed after the file system is created, and therefore, should be set when the file system is cre- ated. If the properties are not set with the "zfs create" or "zpool create" commands, these properties are inherited from the parent dataset. If the parent dataset lacks these properties due to having been created prior to these features being supported, the new file sys- tem will have the default values for these properties. casesensitivity = sensitive | insensitive | mixed Indicates whether the file name matching algorithm used by the file system should be case-sensitive, case-insensitive, or allow a com- bination of both styles of matching. The default value for the "casesensitivity" property is "sensitive." Traditionally, UNIX and POSIX file systems have case-sensitive file names. The "mixed" value for the "casesensitivity" property indicates that the file system can support requests for both case-sensitive and case-insensitive matching behavior. Currently, case-insensitive matching behavior on a file system that supports mixed behavior is limited to the Solaris CIFS server product. For more information about the "mixed" value behavior, see the ZFS Administration Guide. normalization =none | formD | formKCf Indicates whether the file system should perform a unicode normal- ization of file names whenever two file names are compared, and which normalization algorithm should be used. File names are always stored unmodified, names are normalized as part of any comparison process. If this property is set to a legal value other than "none," and the "utf8only" property was left unspecified, the "utf8only" property is automatically set to "on." The default value of the "normalization" property is "none." This property cannot be changed after the file system is created. utf8only =on | off Indicates whether the file system should reject file names that include characters that are not present in the UTF-8 character code set. If this property is explicitly set to "off," the normalization property must either not be explicitly set or be set to "none." The default value for the "utf8only" property is "off." This property cannot be changed after the file system is created. The "casesensitivity," "normalization," and "utf8only" properties are also new permissions that can be assigned to non-privileged users by using the ZFS delegated administration feature. The original link: https://www.freebsd.org/cgi/man.cgi?query=zfs&apropos=0&sektion=0&manpath=FreeBSD+8.1-RELEASE&format=html > > However, this > > really is a wider policy decision for the kernel/VFS as we want > > consistent behaviour across all linux filesystems, hence this > > patchset really needs to discussed at the lkml/-fsdevel level... > > Absolutely. I've also talked to a few Samba folks at SDC, and one > thing they would love to see is conditional case insensitive lookups, > e.g.: > > - we hash case insensitive with collisions, but perform normal case > sensitive lookups. > - with a new AT_CASE_INSENSTIVE flag to the various *at calls that > gets passed down to the dcache we enable CI lookups. I'm working on addressing some of the initial feedback and will be in a position to post for a wider audience later in the week. Thanks, Ben From david@fromorbit.com Tue Sep 16 16:53:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 923247F47 for ; Tue, 16 Sep 2014 16:53:52 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7D80B8F8039 for ; Tue, 16 Sep 2014 14:53:52 -0700 (PDT) X-ASG-Debug-ID: 1410904429-04cbb05488e25d70001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id BsM3qlmeVrWPDSDk for ; Tue, 16 Sep 2014 14:53:49 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AkE4ANKwGFR5LCtm/2dsb2JhbABggw2BKoIssWsGBZYRhWsCAgEBgRUXAXmERBwjGCQ0BSUDIROIPbxuGBiFZIlPhFIFhh+WapVGg3ArL4JKAQEB Received: from ppp121-44-43-102.lns20.syd6.internode.on.net (HELO dastard) ([121.44.43.102]) by ipmail07.adl2.internode.on.net with ESMTP; 17 Sep 2014 07:23:49 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XU0gq-00036z-AF; Wed, 17 Sep 2014 07:53:36 +1000 Date: Wed, 17 Sep 2014 07:53:36 +1000 From: Dave Chinner To: Al Viro Cc: linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com Subject: [BUG, 3.17-rc4] dentry still in use during unmount Message-ID: <20140916215336.GL4322@dastard> X-ASG-Orig-Subj: [BUG, 3.17-rc4] dentry still in use during unmount MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1410904429 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9558 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi Al, One of my xfstest rigs tripped over this last night when running xfs/301 on a pair of 4G ramdisks during an auto group run: BUG: Dentry ffff8803c14fc870{i=0,n=dir} still in use (-127) [unmount of xfs ram1] ------------[ cut here ]------------ WARNING: CPU: 4 PID: 27856 at fs/dcache.c:1319 umount_check+0x7f/0x90() Modules linked in: CPU: 4 PID: 27856 Comm: umount Tainted: G W 3.17.0-rc4-dgc+ #479 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 0000000000000009 ffff88025eeefd80 ffffffff81cf7327 0000000000000000 ffff88025eeefdb8 ffffffff810933bd ffff8803c14fc870 ffff88011aeba800 ffffffff81db2860 ffff88023acf72c0 00000000002353d2 ffff88025eeefdc8 Call Trace: [] dump_stack+0x45/0x56 [] warn_slowpath_common+0x7d/0xa0 [] warn_slowpath_null+0x1a/0x20 [] umount_check+0x7f/0x90 [] d_walk+0x66/0x2c0 [] ? d_lru_del+0xa0/0xa0 [] do_one_tree+0x26/0x40 [] shrink_dcache_for_umount+0x5a/0x90 [] generic_shutdown_super+0x21/0xf0 [] kill_block_super+0x3c/0x90 [] deactivate_locked_super+0x49/0x60 [] deactivate_super+0x46/0x60 [] mntput_no_expire+0xca/0x120 [] SyS_umount+0x8e/0x100 [] system_call_fastpath+0x16/0x1b ---[ end trace 15254c3c565abf1a ]--- VFS: Busy inodes after unmount of ram1. Self-destruct in 5 seconds. Have a nice day... I can't reproduce it easily: $ sudo MKFS_OPTIONS="-m crc=1,finobt=1" ./check xfs/301 FSTYP -- xfs (debug) PLATFORM -- Linux/x86_64 test4 3.17.0-rc4-dgc+ MKFS_OPTIONS -- -f -m crc=1,finobt=1 /dev/ram1 MOUNT_OPTIONS -- /dev/ram1 /mnt/scr xfs/301 12s ... 12s Ran: xfs/301 Passed all 1 tests $ And even run in a loop for 20 minutes it hasn't triggered the error. I haven't seen this before, so I thought I better give you the heads up just in case. Cheers, Dave. -- Dave Chinner david@fromorbit.com From bmh@rincon.com Tue Sep 16 17:03:14 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 3F32F7F47 for ; Tue, 16 Sep 2014 17:03:14 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1E5928F8039 for ; Tue, 16 Sep 2014 15:03:10 -0700 (PDT) X-ASG-Debug-ID: 1410904989-04bdf010a0adf4b0001-NocioJ Received: from autodiscover.rincon.com (smtp.rincon.com [67.128.198.140]) by cuda.sgi.com with ESMTP id j6yCIPIJEIFyLlRq for ; Tue, 16 Sep 2014 15:03:09 -0700 (PDT) X-Barracuda-Envelope-From: bmh@rincon.com X-Barracuda-Apparent-Source-IP: 67.128.198.140 Received: from brhazbriklab3.rinconres.com (172.16.203.59) by autodiscover.rincon.com (172.16.203.52) with Microsoft SMTP Server id 14.3.195.1; Tue, 16 Sep 2014 15:03:08 -0700 Message-ID: <5418B39C.2060707@rincon.com> Date: Tue, 16 Sep 2014 15:03:08 -0700 From: Brian Hemme User-Agent: Mozilla/5.0 (X11; Linux i686 on x86_64; rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1 MIME-Version: 1.0 To: Subject: mkfs.xfs fails with raid5 and smaller chunk sizes Content-Type: text/plain; charset="ISO-8859-1"; format=flowed X-ASG-Orig-Subj: mkfs.xfs fails with raid5 and smaller chunk sizes Content-Transfer-Encoding: 7bit X-Barracuda-Connect: smtp.rincon.com[67.128.198.140] X-Barracuda-Start-Time: 1410904989 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9558 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hello all, I am having some odd problems with mkfs.xfs when used on a raid 5 array. The array is built from 6 960GB SSDs all connected to SATA ports on the MB and created with mdadm. If I use a chunk size any smaller then 512K mkfs.xfs just hangs forever. It continues to use CPU and so does the raid array but never completes. If the system is just left running for an extended length of time the whole OS eventually locks up. I have tried this on three different systems with the same results. I have searched all over for someone with similar issues without success. I am hoping I am just doing something clearly wrong and you all can set me straight quickly. Some specifics: Arch linux with 3.14.1 kernel mkfs.xfs version 3.1.11 mdadm - v3.3 - 3rd September 2013 Commands: > mdadm --create /dev/md0 --chunk=64K --level=5 --raid-devices=6 /dev/sd[a-f] > mkfs.xfs /dev/md0 ** This command fails and locks up I have tried specifying the arguments to mkfs.xfs with the same results. Building a 4 drive array seems to require a chunk size of 1M or greater to work. Same results if I make a partition on the array and make the fs there. Any help would be appreciated Thanks Brian From david@fromorbit.com Tue Sep 16 17:03:49 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 4F3207F47 for ; Tue, 16 Sep 2014 17:03:49 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id C30D4AC007 for ; Tue, 16 Sep 2014 15:03:45 -0700 (PDT) X-ASG-Debug-ID: 1410905022-04cb6c54feb53bd0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id LOn23fJyhRtUVtLm for ; Tue, 16 Sep 2014 15:03:43 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AkAgACezGFR5LCtm/2dsb2JhbABggw0gM1eCLLFrBpQvAoFlhWsEgRcXAXmEYDskNAUlAzSIPZdApUgYhWSJbIIhD0SBQQWGH49lhwWVRoFGgiorL4JKAQEB Received: from ppp121-44-43-102.lns20.syd6.internode.on.net (HELO dastard) ([121.44.43.102]) by ipmail07.adl2.internode.on.net with ESMTP; 17 Sep 2014 07:33:42 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XU0qP-0003BO-G0 for xfs@oss.sgi.com; Wed, 17 Sep 2014 08:03:29 +1000 Date: Wed, 17 Sep 2014 08:03:29 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [ANNOUNCE] xfsprogs: master branch updated to 794b62f Message-ID: <20140916220329.GM4322@dastard> X-ASG-Orig-Subj: [ANNOUNCE] xfsprogs: master branch updated to 794b62f MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="ReaqsoxgOBHFXBhH" Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1410905022 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9558 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- --ReaqsoxgOBHFXBhH Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi folks, The xfsprogs repository at git://oss.sgi.com/xfs/cmds/xfsprogs has just been updated. The new head of the master branch is commit: 794b62f xfsprogs: add supported file attributes to xfs.5 manpage New Commits: Eric Sandeen (10): [713ba3f] xfs_io: free fshandlep in parent_check() [4f10a2f] xfs_fsr: fix leaks & catch error in fsrfile() [e3e2793] xfs_fsr: free handlep in fsrfs [8f1c8e1] libhandle: Fix handle leak in path_to_fshandle error paths [70ac12f] xfs_io: fix leaks in parent_list() [9c1c2e3] xfs_db: free flist on error in write_struct() [5cd0710] xfs_repair: clear bad flags in process_dinode_int [50aeb09] xfs_repair: preserve error state in process_shortform_attr [4f20f6a] xfs_io: add mremap command [794b62f] xfsprogs: add supported file attributes to xfs.5 manpage Jan Kara (1): [937ef31] repair: Set ftype for entries in lost+found Jan Tulak (1): [02ef543] libhandle: fix installation for symlinked /usr Mark Tinguely (1): [4263df5] mkfs: fix typo in output Code Diffstat: db/write.c | 1 + fsr/xfs_fsr.c | 31 ++++++++++++---------- include/buildmacros | 9 ++++--- io/mmap.c | 73 ++++++++++++++++++++++++++++++++++++++++++++++++= ++++ io/parent.c | 13 ++++++---- libhandle/handle.c | 1 + man/man5/xfs.5 | 22 +++++++++++++++- man/man8/xfs_io.8 | 14 ++++++++++ mkfs/xfs_mkfs.c | 2 +- po/pl.po | 2 +- repair/attr_repair.c | 3 ++- repair/dinode.c | 6 ++--- repair/phase6.c | 4 +-- 13 files changed, 149 insertions(+), 32 deletions(-) --=20 Dave Chinner david@fromorbit.com --ReaqsoxgOBHFXBhH Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJUGLOwAAoJEK3oKUf0dfodj+AQAMCy7Bwrpp/EfbDfsfiYAo35 +ewYlCZ5nbEK5Jwtf/C/M1rVAzwSML2ykdJfLHh6aW63N+xCn2bUnBhKKeJyWJ+1 +4qzRC1oj86z6C3/jYClOvdFwqBRIcX3PZ8ZRbvLM0FNMCbYUvTUj2T8izeEHH40 kUx336+zLUZUyoeecIopcFH4W3WzSPMUcw1sDwwJIUJZHzg3PgjoHcjui038QfGP Ec8nouyV0E5BjSwLbgIIeMe9xLbwmGTHDzT2J/Ef8+MN0GGi5wP2OO9il9rK+wmI qaps27jwqARRbFjwpkCvdCCghAARJdMdi9KRwupGeS143GibZiufrwJsrCMl2GJ0 9g74TJY1nnJI7wIrwAfWPAD+1faS0fuwpfkvXdBwhqfHwgO7KNjci52AdxwdtKHS etkhQgZuaFpBzq9jRT9AZItLJfX92jqzKfsFVX6NOT8GbECsqVl+sqF8i7n5sr4R qb8s3uXG61iHjvLYFSB/iTteVW/t8GlSbMpa2HHX3CTJHy57h1rMK0y+xflLgIek jotyjJzO8TQcBf2UrBvLJpC2fIIK1yItPSg+alO/bY/aA31YtYmclUcX5vxDIC1T n40e3+LoXCKmjnIc0TMV/YTgztWfyeP19GQRICo+N7qxH/aTXkNmz3zKsjY6J74L us7vXYEwIZQk82DJnUOP =YWgP -----END PGP SIGNATURE----- --ReaqsoxgOBHFXBhH-- From sandeen@sandeen.net Tue Sep 16 17:06:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 16AFA7F47 for ; Tue, 16 Sep 2014 17:06:19 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 01C3C8F8039 for ; Tue, 16 Sep 2014 15:06:18 -0700 (PDT) X-ASG-Debug-ID: 1410905177-04cb6c5500b53d40001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id QngQhAUHL2leqprA for ; Tue, 16 Sep 2014 15:06:17 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 40D6560F9698 for ; Tue, 16 Sep 2014 17:06:17 -0500 (CDT) Message-ID: <5418B459.1010204@sandeen.net> Date: Tue, 16 Sep 2014 17:06:17 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss Subject: Re: [PATCH 2/2 V2] xfs_db: add crc manipulation commands References: <540B4399.4020804@sandeen.net> <5418574A.8040102@sandeen.net> X-ASG-Orig-Subj: Re: [PATCH 2/2 V2] xfs_db: add crc manipulation commands In-Reply-To: <5418574A.8040102@sandeen.net> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410905177 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9558 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/16/14 10:29 AM, Eric Sandeen wrote: > This adds a new "crc" command to xfs_db for CRC-enabled filesystems. > > If a structure has a CRC field, we can validate it, invalidate/corrupt > it, or revalidate/rewrite it: > > xfs_db> sb 0 > xfs_db> crc -v > crc = 0x796c814f (correct) > xfs_db> crc -i > Metadata CRC error detected at block 0x0/0x200 > crc = 0x796c8150 (bad) > xfs_db> crc -r > crc = 0x796c814f (correct) On reflection, do you think these should be more verbose, something like: xfs_db> sb 0 xfs_db> crc -v Validating crc: crc = 0x796c814f (correct) xfs_db> crc -i Invalidating CRC: Metadata CRC error detected at block 0x0/0x200 crc = 0x796c8150 (bad) xfs_db> crc -r Rewriting CRC: crc = 0x796c814f (correct) From david@fromorbit.com Tue Sep 16 17:10:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id A31377F4E for ; Tue, 16 Sep 2014 17:10:22 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 61D6D8F8054 for ; Tue, 16 Sep 2014 15:10:22 -0700 (PDT) X-ASG-Debug-ID: 1410905419-04bdf01097adf940001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id SbT3fXMkcEK9JFDD for ; Tue, 16 Sep 2014 15:10:19 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AmM2AFe0GFR5LCtm/2dsb2JhbABggw2BKoIssWsGlhaFawICAQEBgRQXAXmEBAEBBAwmASMjEAgDGAkQAhMPBSUDNIg9vG4YGIVkiU8HFhEChCIFnQmVRoNwKy9nIYFCAQEB Received: from ppp121-44-43-102.lns20.syd6.internode.on.net (HELO dastard) ([121.44.43.102]) by ipmail07.adl2.internode.on.net with ESMTP; 17 Sep 2014 07:40:19 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XU0wn-0003Cf-Ga; Wed, 17 Sep 2014 08:10:05 +1000 Date: Wed, 17 Sep 2014 08:10:05 +1000 From: Dave Chinner To: weber@zbfmail.de Cc: Xfs Subject: Re: unclean shutdown of usb hdd destroyed xfs partially Message-ID: <20140916221005.GN4322@dastard> X-ASG-Orig-Subj: Re: unclean shutdown of usb hdd destroyed xfs partially References: <3999c95c0dc7ebfdfbb2853a6d13f7dc@zbfmail.de> <082ebd288523ee6155b66debade2a775@zbfmail.de> <20140913220916.GC4267@dastard> <330c89398cb4eef9b7289c1ffef8bcc3@zbfmail.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <330c89398cb4eef9b7289c1ffef8bcc3@zbfmail.de> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1410905419 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9558 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header On Tue, Sep 16, 2014 at 11:27:45PM +0200, Marko Weber|8000 wrote: > > > Am 2014-09-14 00:09, schrieb Dave Chinner: > >On Sat, Sep 13, 2014 at 04:36:59PM +0200, Marko Weber|8000 wrote: > >> > >>an output of xfs_repair -v -L /dev/sde1 > >... > >> > >> # xfs_repair -v -L /dev/sde1 > > > >What version? > > first it was 3.1.10 > later like posted 3.2.1 > > > > >>Phase 1 - Superblock finden und überprüfen... > >> - Berichts-Prozess in Abständen von 15 Minutes > >> - Block-Zwischenspeichergröße ist auf 1487792 Einträge gesetzt > >>Phase 2 - ein internes Protokoll benutzen > >> - Null-Protokoll... > >>zero_log: head block 40 tail block 40 > >> - freier Speicher und Inode-Karten des Dateisystems werden > >>gescannt... > >>bad magic numberbad magic numberbad magic number > >.... > >>falscher on-disk-Superblock 12 - falsche Magische Nummer > >>Metadata corruption detected at block > >>0x20bf8e50/0x1000primäre/sekundärer Superblock-12-Konflikt - > >>AG-Superblock-Geometrie-Info hat einen Konflikt mit der > >>Dateisystem-Geometrie > >>flasche magische # 0x0 für agf 12 > >>falsche Version # 0 für agf 12 > >> > >>Metadata corruption detected at block 0x417f1c90/0x1000 > >>falscher on-disk-Superblock 6 - falsche Magische Nummer > >>primäre/sekundärer Superblock-6-Konflikt - > >>AG-Superblock-Geometrie-Info hat einen Konflikt mit der > >>Dateisystem-Geometrie > >>falscher on-disk-Superblock 3 - falsche Magische Nummer > >>ungenutzten Anteil des »sekundär«-Superblocks nullen (AG #6) > >>Metadata corruption detected at block 0x57542610/0x1000 > >>falsche Sequenz # 0 für agf 12 > >>Metadata corruption detected at block > >>0x7813b450/0x1000Speicherzugriffsfehler > > > >I don't read german(?) but that looks like many AG header block > >have been overwritten with zeros (0 magic number, 0 sequence #, 0 > >length, etc) and so even if we can repair the filesystem, I'd > >suggest that you need to verify that the data in every file in the > >filesystem is correct. > > > >Is that as far as xfs_repair got? If so, it would have appeared to > >crash. Can you run the lastest version inside gdb to get a stack > >trace when it dies? Or, alternatively, provide a metadump for one of > >us to look at more closely? > > yes, this is as far xfs_repair got it. > what is ment 'run latest version in gdb?' gnudebugger? how do i do > that? console example needed. > and how do i do the metadump? # gdb /path/to/build/area/repair/xfs_repair .... (gdb) run ..... (gdb) bt Paste the entire output of the gdb session. Best if you can run it with your language settings to output english error messages, too (LANG=C, I think). As for running metadump: 'man xfs_metadump', compress the resultant image and send me a link to where I can download it from. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Tue Sep 16 17:17:55 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 5009D7F47 for ; Tue, 16 Sep 2014 17:17:55 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1ECCC8F8039 for ; Tue, 16 Sep 2014 15:17:54 -0700 (PDT) X-ASG-Debug-ID: 1410905872-04bdf010a0ae00f0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id QopbKKTWDqXuFMiT for ; Tue, 16 Sep 2014 15:17:52 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AuAfANC2GFR5LCtm/2dsb2JhbABggw2BKoIssWsGlhaFawQCAYEUFwF5hAQBAQQ6HCMQCAMOCgklDwUlAyETiD28cBgYhWSJTweESwWdCZVGg3ArL4JKAQEB Received: from ppp121-44-43-102.lns20.syd6.internode.on.net (HELO dastard) ([121.44.43.102]) by ipmail07.adl2.internode.on.net with ESMTP; 17 Sep 2014 07:47:52 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XU147-0003Eb-02; Wed, 17 Sep 2014 08:17:39 +1000 Date: Wed, 17 Sep 2014 08:17:38 +1000 From: Dave Chinner To: Brian Hemme Cc: xfs@oss.sgi.com Subject: Re: mkfs.xfs fails with raid5 and smaller chunk sizes Message-ID: <20140916221738.GO4322@dastard> X-ASG-Orig-Subj: Re: mkfs.xfs fails with raid5 and smaller chunk sizes References: <5418B39C.2060707@rincon.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5418B39C.2060707@rincon.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1410905872 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9558 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Sep 16, 2014 at 03:03:08PM -0700, Brian Hemme wrote: > Hello all, > > I am having some odd problems with mkfs.xfs when used on a raid 5 > array. The array is built from 6 960GB SSDs all connected to SATA > ports on the MB and created with mdadm. If I use a chunk size any > smaller then 512K mkfs.xfs just hangs forever. It continues to use > CPU and so does the raid array but never completes. If the system > is just left running for an extended length of time the whole OS > eventually locks up. I have tried this on three different systems > with the same results. I have searched all over for someone with > similar issues without success. I am hoping I am just doing > something clearly wrong and you all can set me straight quickly. > > Some specifics: > Arch linux with 3.14.1 kernel > mkfs.xfs version 3.1.11 > mdadm - v3.3 - 3rd September 2013 > > Commands: > > mdadm --create /dev/md0 --chunk=64K --level=5 --raid-devices=6 > /dev/sd[a-f] > > mkfs.xfs /dev/md0 > ** This command fails and locks up > > I have tried specifying the arguments to mkfs.xfs with the same > results. Building a 4 drive array seems to require a chunk size of > 1M or greater to work. Same results if I make a partition on the > array and make the fs there. mkfs.xfs really should only take a couple of seconds to complete. Seeing as you are using SSDs, my first suspicion is that md or the SSDs are having problems with discard. Hence you should first try 'mkfs.xfs -K /dev/md0' and see if that completes quickly. Otherwise, output of 'echo w > sysrq-trigger' from dmesg would be a good start, as would a 'perf top -G -U' snapshot (run for 30s at least a minute after mkfs.xfs starts) to tell us what is burning CPU. Cheers, Dave. -- Dave Chinner david@fromorbit.com From viro@ftp.linux.org.uk Tue Sep 16 17:30:50 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 2923B7F47 for ; Tue, 16 Sep 2014 17:30:50 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id ADF53AC00B for ; Tue, 16 Sep 2014 15:30:49 -0700 (PDT) X-ASG-Debug-ID: 1410906646-04bdf0109aae08f0001-NocioJ Received: from ZenIV.linux.org.uk (zeniv.linux.org.uk [195.92.253.2]) by cuda.sgi.com with ESMTP id PGd4A3PexB7WUYnV (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 16 Sep 2014 15:30:47 -0700 (PDT) X-Barracuda-Envelope-From: viro@ftp.linux.org.uk X-Barracuda-Apparent-Source-IP: 195.92.253.2 Received: from viro by ZenIV.linux.org.uk with local (Exim 4.76 #1 (Red Hat Linux)) id 1XU1Gm-00073Q-55; Tue, 16 Sep 2014 22:30:44 +0000 Date: Tue, 16 Sep 2014 23:30:44 +0100 From: Al Viro To: Dave Chinner Cc: linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [BUG, 3.17-rc4] dentry still in use during unmount Message-ID: <20140916223043.GY7996@ZenIV.linux.org.uk> X-ASG-Orig-Subj: Re: [BUG, 3.17-rc4] dentry still in use during unmount References: <20140916215336.GL4322@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140916215336.GL4322@dastard> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: Al Viro X-Barracuda-Connect: zeniv.linux.org.uk[195.92.253.2] X-Barracuda-Start-Time: 1410906647 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=COMMA_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9559 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 COMMA_SUBJECT Subject is like 'Re: FDSDS, this is a subject' On Wed, Sep 17, 2014 at 07:53:36AM +1000, Dave Chinner wrote: > Hi Al, > > One of my xfstest rigs tripped over this last night when running > xfs/301 on a pair of 4G ramdisks during an auto group run: > > BUG: Dentry ffff8803c14fc870{i=0,n=dir} still in use (-127) [unmount of xfs ram1] Umm... -127 == "already got past the beginning of __dentry_kill()". And if it had been seen by d_walk() callback, it must have gotten past the point where __dentry_kill() unlocks that sucker. Very interesting... I don't see how that could happen, TBH - __dentry_kill() is called with parent and victim locked; it sets DCACHE_DENTRY_KILLED and removes the victim from parent's ->d_subdirs before dropping either lock. Moreover, the victim can't have any children at that point - it must have had the last reference held by called of __dentry_kill() and each child would've contributed to refcount. And d_walk() goes through the list of children with parent kept locked. It does unlock the parent after walking one level deeper, but on the way back it * checks that there had been no renames * checks that child isn't marked with DCACHE_DENTRY_KILLED after relocking the parent. In case of anything fishy it restarts the whole thing with renames excluded. If those tests succeed, we are guaranteed that we'll continue walking the parent's list of children with parent locked, AFAICS, not that there could legitimately be anything playing with the dentry tree modifications in parallel with fs shutdown... It might be interesting to slap WARN_ON(dentry->d_flags & DCACHE_DENTRY_KILLED) for dentry and target in __d_move() and for anon in __d_materialise_dentry(), after dentry_lock_for_move() in both functions. And see if it triggers. IOW, whether it's possible for doomed dentry to be readded to someone's ->d_subdirs after it has entered __dentry_kill(). From david@fromorbit.com Tue Sep 16 17:41:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 5193B7F47 for ; Tue, 16 Sep 2014 17:41:13 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id C308CAC008 for ; Tue, 16 Sep 2014 15:41:12 -0700 (PDT) X-ASG-Debug-ID: 1410907269-04cbb05487e280e0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id 0mAsAXehOSLjHDwZ for ; Tue, 16 Sep 2014 15:41:10 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AuEfAIS7GFR5LCtm/2dsb2JhbABYCIMNgSqCLLFrBpYWhWsEAgGBExcBeYQEAQEEJxMcIxAIAxgJJQ8FJQMhE4g9vHUYGIVkiHlWB4RLBZ0JlUaDcCsvgkoBAQE Received: from ppp121-44-43-102.lns20.syd6.internode.on.net (HELO dastard) ([121.44.43.102]) by ipmail07.adl2.internode.on.net with ESMTP; 17 Sep 2014 08:11:09 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XU1Qe-0003IE-87; Wed, 17 Sep 2014 08:40:56 +1000 Date: Wed, 17 Sep 2014 08:40:56 +1000 From: Dave Chinner To: Al Viro Cc: linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [BUG, 3.17-rc4] dentry still in use during unmount Message-ID: <20140916224056.GP4322@dastard> X-ASG-Orig-Subj: Re: [BUG, 3.17-rc4] dentry still in use during unmount References: <20140916215336.GL4322@dastard> <20140916223043.GY7996@ZenIV.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140916223043.GY7996@ZenIV.linux.org.uk> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1410907269 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=COMMA_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9559 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 COMMA_SUBJECT Subject is like 'Re: FDSDS, this is a subject' On Tue, Sep 16, 2014 at 11:30:44PM +0100, Al Viro wrote: > On Wed, Sep 17, 2014 at 07:53:36AM +1000, Dave Chinner wrote: > > Hi Al, > > > > One of my xfstest rigs tripped over this last night when running > > xfs/301 on a pair of 4G ramdisks during an auto group run: > > > > BUG: Dentry ffff8803c14fc870{i=0,n=dir} still in use (-127) [unmount of xfs ram1] > > Umm... -127 == "already got past the beginning of __dentry_kill()". And if > it had been seen by d_walk() callback, it must have gotten past the point where > __dentry_kill() unlocks that sucker. > > Very interesting... I don't see how that could happen, TBH - __dentry_kill() > is called with parent and victim locked; it sets DCACHE_DENTRY_KILLED and > removes the victim from parent's ->d_subdirs before dropping either lock. > Moreover, the victim can't have any children at that point - it must have > had the last reference held by called of __dentry_kill() and each child > would've contributed to refcount. > > And d_walk() goes through the list of children with parent kept locked. > It does unlock the parent after walking one level deeper, but on the > way back it > * checks that there had been no renames > * checks that child isn't marked with DCACHE_DENTRY_KILLED > after relocking the parent. In case of anything fishy it restarts the > whole thing with renames excluded. If those tests succeed, we are guaranteed > that we'll continue walking the parent's list of children with parent locked, > AFAICS, not that there could legitimately be anything playing with the > dentry tree modifications in parallel with fs shutdown... > > It might be interesting to slap WARN_ON(dentry->d_flags & DCACHE_DENTRY_KILLED) > for dentry and target in __d_move() and for anon in __d_materialise_dentry(), > after dentry_lock_for_move() in both functions. And see if it triggers. > IOW, whether it's possible for doomed dentry to be readded to someone's > ->d_subdirs after it has entered __dentry_kill(). Ok, I'll add a debug patch to my test kernels that add these and I'll let you know if anything triggers. Cheers, Dave. -- Dave Chinner david@fromorbit.com From dave@fromorbit.com Tue Sep 16 17:46:03 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E7A927F47 for ; Tue, 16 Sep 2014 17:46:02 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 83530AC007 for ; Tue, 16 Sep 2014 15:46:02 -0700 (PDT) X-ASG-Debug-ID: 1410907560-04bdf010a0ae1160001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id fRDugdCvComq4CDT for ; Tue, 16 Sep 2014 15:46:00 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Aj8OAIu8GFR5LCtm/2dsb2JhbABggw2BKrQXBpwHgRIXAXmEMS87GGoDNBuIIpdLpUiFfIQEhUCEXQWyT4FGgiorL4JKAQEB Received: from ppp121-44-43-102.lns20.syd6.internode.on.net (HELO dastard) ([121.44.43.102]) by ipmail07.adl2.internode.on.net with ESMTP; 17 Sep 2014 08:15:59 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XU1VL-0003JL-9Z for xfs@oss.sgi.com; Wed, 17 Sep 2014 08:45:47 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XU1VL-0002Pq-8R for xfs@oss.sgi.com; Wed, 17 Sep 2014 08:45:47 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH] xfs: flush entire last page of old EOF on truncate up Date: Wed, 17 Sep 2014 08:45:47 +1000 X-ASG-Orig-Subj: [PATCH] xfs: flush entire last page of old EOF on truncate up Message-Id: <1410907547-9253-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1410907560 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9559 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner On a sub-page sized filesystem, truncating a mapped region down leaves us in a world of hurt. We truncate the pagecache, zeroing the newly unused tail, then punch blocks out from under the page. If we then truncate the file back up immediately, we expose that unmapped hole to a dirty page mapped into the user application, and that's where it all goes wrong. In truncating the page cache, we avoid unmapping the tail page of the cache because it still contains valid data. The problem is that it also contains a hole after the truncate, but nobody told the mm subsystem that. Therefore, if the page is dirty before the truncate, we'll never get a .page_mkwrite callout after we extend the file and the application writes data into the hole on the page. Hence when we come to writing that region of the page, it has no blocks and no delayed allocation reservation and hence we toss the data away. This patch adds code to the truncate up case to solve it, by ensuring the partial page at the old EOF is always cleaned after we do any zeroing and move the EOF upwards. We can't actually serialise the page writeback and truncate against page faults (yes, that problem AGAIN) so this is really just a best effort and assumes it is extremely unlikely that someone is concurrently writing to the page at the EOF while extending the file. Signed-off-by: Dave Chinner --- fs/xfs/xfs_iops.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index 63aeca8..a726d37 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -853,6 +853,36 @@ xfs_setattr_size( return error; truncate_setsize(inode, newsize); + /* + * The "we can't serialise against page faults" pain gets worse. + * + * If the file is mapped then we have to clean the page at the old EOF + * when extending the file. Extending the file can expose changes the + * underlying page mapping (e.g. from beyond EOF to a hole or + * unwritten), and so on the next attempt to write to that page we need + * to remap it for write. i.e. we need .page_mkwrite() to be called. + * Hence we need to clean the page to clean the pte and so a new write + * fault will be triggered appropriately. + * + * If we do it before we change the inode size, then we can race with a + * page fault that maps the page with exactly the same problem. If we do + * it after we change the file size, then a new page fault can come in + * and allocate space before we've run the rest of the truncate + * transaction. That's kinda grotesque, but it's better than have data + * over a hole, and so that's the lesser evil that has been chosen here. + * + * The real solution, however, is to have some mechanism for locking out + * page faults while a truncate is in progress. + */ + if (newsize > oldsize && mapping_mapped(VFS_I(ip)->i_mapping)) { + error = filemap_write_and_wait_range( + VFS_I(ip)->i_mapping, + round_down(oldsize, PAGE_CACHE_SIZE), + round_up(oldsize, PAGE_CACHE_SIZE) - 1); + if (error) + return error; + } + tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_SIZE); error = xfs_trans_reserve(tp, &M_RES(mp)->tr_itruncate, 0, 0); if (error) -- 2.0.0 From bmh@rincon.com Tue Sep 16 17:47:47 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BFD2B7F47 for ; Tue, 16 Sep 2014 17:47:47 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 3ECAFAC008 for ; Tue, 16 Sep 2014 15:47:46 -0700 (PDT) X-ASG-Debug-ID: 1410907664-04cb6c54ffb556c0001-NocioJ Received: from autodiscover.rincon.com (smtp.rincon.com [67.128.198.140]) by cuda.sgi.com with ESMTP id PcdrxtJtefnsVqU0 for ; Tue, 16 Sep 2014 15:47:44 -0700 (PDT) X-Barracuda-Envelope-From: bmh@rincon.com X-Barracuda-Apparent-Source-IP: 67.128.198.140 Received: from brhazbriklab3.rinconres.com (172.16.203.59) by autodiscover.rincon.com (172.16.203.53) with Microsoft SMTP Server id 14.3.195.1; Tue, 16 Sep 2014 15:47:43 -0700 Message-ID: <5418BE0F.9040702@rincon.com> Date: Tue, 16 Sep 2014 15:47:43 -0700 From: Brian Hemme User-Agent: Mozilla/5.0 (X11; Linux i686 on x86_64; rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1 MIME-Version: 1.0 To: Dave Chinner CC: Subject: Re: mkfs.xfs fails with raid5 and smaller chunk sizes References: <5418B39C.2060707@rincon.com> <20140916221738.GO4322@dastard> X-ASG-Orig-Subj: Re: mkfs.xfs fails with raid5 and smaller chunk sizes In-Reply-To: <20140916221738.GO4322@dastard> Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: smtp.rincon.com[67.128.198.140] X-Barracuda-Start-Time: 1410907664 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9560 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 09/16/2014 03:17 PM, Dave Chinner wrote: > On Tue, Sep 16, 2014 at 03:03:08PM -0700, Brian Hemme wrote: >> Hello all, >> >> I am having some odd problems with mkfs.xfs when used on a raid 5 >> array. The array is built from 6 960GB SSDs all connected to SATA >> ports on the MB and created with mdadm. If I use a chunk size any >> smaller then 512K mkfs.xfs just hangs forever. It continues to use >> CPU and so does the raid array but never completes. If the system >> is just left running for an extended length of time the whole OS >> eventually locks up. I have tried this on three different systems >> with the same results. I have searched all over for someone with >> similar issues without success. I am hoping I am just doing >> something clearly wrong and you all can set me straight quickly. >> >> Some specifics: >> Arch linux with 3.14.1 kernel >> mkfs.xfs version 3.1.11 >> mdadm - v3.3 - 3rd September 2013 >> >> Commands: >>> mdadm --create /dev/md0 --chunk=64K --level=5 --raid-devices=6 >> /dev/sd[a-f] >>> mkfs.xfs /dev/md0 >> ** This command fails and locks up >> >> I have tried specifying the arguments to mkfs.xfs with the same >> results. Building a 4 drive array seems to require a chunk size of >> 1M or greater to work. Same results if I make a partition on the >> array and make the fs there. > mkfs.xfs really should only take a couple of seconds to complete. > Seeing as you are using SSDs, my first suspicion is that md or the > SSDs are having problems with discard. Hence you should first > try 'mkfs.xfs -K /dev/md0' and see if that completes quickly. > > Otherwise, output of 'echo w> sysrq-trigger' from dmesg would be a > good start, as would a 'perf top -G -U' snapshot (run for 30s at > least a minute after mkfs.xfs starts) to tell us what is burning > CPU. > > Cheers, > > Dave. Thanks for the quick response! Adding the -K seemed to do the trick. However, for my education, why is this needed in this case? It seems to work without it for larger chunk sizes or for raid 0 instead of 5. It also worked on our old install with a 3.1.6 kernel. Any why would not using the -K cause enough of a problem that the whole machine hangs? Just trying to understand this enough to make sure I don't run into problems down the road. Thanks again, Brian From david@fromorbit.com Tue Sep 16 18:53:15 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 1D8767F47 for ; Tue, 16 Sep 2014 18:53:15 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 0B0F28F8039 for ; Tue, 16 Sep 2014 16:53:11 -0700 (PDT) X-ASG-Debug-ID: 1410911589-04cbb05486e2a9a0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id 1XvInlUuvB4UAzIK for ; Tue, 16 Sep 2014 16:53:09 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: At8fACjNGFR5LCtm/2dsb2JhbABggw2BKoIssWsGlhaFawQCAYESFwF5hAQBAQQ6HCMQCAMYCSUPBSUDIROIPbxxGBiFZIlPB4RLBZ0JjDKJFINwKy+BCB8FgR4BAQE Received: from ppp121-44-43-102.lns20.syd6.internode.on.net (HELO dastard) ([121.44.43.102]) by ipmail07.adl2.internode.on.net with ESMTP; 17 Sep 2014 09:22:44 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XU2Xs-0003U4-KS; Wed, 17 Sep 2014 09:52:28 +1000 Date: Wed, 17 Sep 2014 09:52:28 +1000 From: Dave Chinner To: Eric Sandeen Cc: xfs-oss Subject: Re: [PATCH 2/2 V2] xfs_db: add crc manipulation commands Message-ID: <20140916235228.GQ4322@dastard> X-ASG-Orig-Subj: Re: [PATCH 2/2 V2] xfs_db: add crc manipulation commands References: <540B4399.4020804@sandeen.net> <5418574A.8040102@sandeen.net> <5418B459.1010204@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5418B459.1010204@sandeen.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1410911589 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9562 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Sep 16, 2014 at 05:06:17PM -0500, Eric Sandeen wrote: > On 9/16/14 10:29 AM, Eric Sandeen wrote: > > This adds a new "crc" command to xfs_db for CRC-enabled filesystems. > > > > If a structure has a CRC field, we can validate it, invalidate/corrupt > > it, or revalidate/rewrite it: > > > > xfs_db> sb 0 > > xfs_db> crc -v > > crc = 0x796c814f (correct) > > xfs_db> crc -i > > Metadata CRC error detected at block 0x0/0x200 > > crc = 0x796c8150 (bad) > > xfs_db> crc -r > > crc = 0x796c814f (correct) > > On reflection, do you think these should be more verbose, something like: > > xfs_db> sb 0 > xfs_db> crc -v > Validating crc: > crc = 0x796c814f (correct) > xfs_db> crc -i > Invalidating CRC: > Metadata CRC error detected at block 0x0/0x200 > crc = 0x796c8150 (bad) > xfs_db> crc -r > Rewriting CRC: > crc = 0x796c814f (correct) Seems like a good idea to me. ;) Cheers, Dave. -- Dave Chinner david@fromorbit.com From sandeen@sandeen.net Tue Sep 16 21:15:27 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 42C1B7F47 for ; Tue, 16 Sep 2014 21:15:27 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1EDCF8F8052 for ; Tue, 16 Sep 2014 19:15:26 -0700 (PDT) X-ASG-Debug-ID: 1410920121-04cb6c54fdb5c5b0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id HRz7WTNbarwp01N9 for ; Tue, 16 Sep 2014 19:15:21 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 42C1C61F892C for ; Tue, 16 Sep 2014 21:15:21 -0500 (CDT) Message-ID: <5418EEB8.9010207@sandeen.net> Date: Tue, 16 Sep 2014 21:15:20 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss Subject: [PATCH 2/2 V3] xfs_db: add crc manipulation commands References: <540B4399.4020804@sandeen.net> <5418574A.8040102@sandeen.net> X-ASG-Orig-Subj: [PATCH 2/2 V3] xfs_db: add crc manipulation commands In-Reply-To: <5418574A.8040102@sandeen.net> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1410920121 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9566 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- This adds a new "crc" command to xfs_db for CRC-enabled filesystems. If a structure has a CRC field, we can validate it, invalidate/corrupt it, or revalidate/rewrite it: xfs_db> sb 0 xfs_db> crc -v crc = 0x796c814f (correct) xfs_db> crc -i Metadata CRC error detected at block 0x0/0x200 crc = 0x796c8150 (bad) xfs_db> crc -r crc = 0x796c814f (correct) (-i and -r require "expert" write-capable mode) This requires temporarily replacing the write verifier with a dummy which won't recalculate the CRC on the way to disk. It also required me to write a new flist function, which is totally foreign to me, so hopefully done right - but it seems to work here. Signed-off-by: Eric Sandeen --- Note, "-i" and "-r" are shown in help even if not in expert mode, not sure if I should fix that? V2: Fix whitespace damage, clarify write_cur() changes a bit w/ code & comments. V3: Be a bit more verbose with command output I'm not totally sure on this, most xfs_db commands aren't very chatty. Pick the one you like ;) diff --git a/db/Makefile b/db/Makefile index bae6154..f0175cc 100644 --- a/db/Makefile +++ b/db/Makefile @@ -8,7 +8,7 @@ include $(TOPDIR)/include/builddefs LTCOMMAND = xfs_db HFILES = addr.h agf.h agfl.h agi.h attr.h attrshort.h bit.h block.h bmap.h \ - btblock.h bmroot.h check.h command.h convert.h debug.h \ + btblock.h bmroot.h check.h command.h convert.h crc.h debug.h \ dir2.h dir2sf.h dquot.h echo.h faddr.h field.h \ flist.h fprint.h frag.h freesp.h hash.h help.h init.h inode.h input.h \ io.h malloc.h metadump.h output.h print.h quit.h sb.h sig.h strvec.h \ diff --git a/db/command.c b/db/command.c index b7e3165..d44e0a5 100644 --- a/db/command.c +++ b/db/command.c @@ -48,6 +48,7 @@ #include "write.h" #include "malloc.h" #include "dquot.h" +#include "crc.h" cmdinfo_t *cmdtab; int ncmds; @@ -123,6 +124,7 @@ init_commands(void) bmap_init(); check_init(); convert_init(); + crc_init(); debug_init(); echo_init(); frag_init(); diff --git a/db/crc.c b/db/crc.c new file mode 100644 index 0000000..ad46c3f --- /dev/null +++ b/db/crc.c @@ -0,0 +1,195 @@ +/* + * Copyright (c) 2014 Red Hat, Inc. + * All Rights Reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include +#include "addr.h" +#include "command.h" +#include "type.h" +#include "faddr.h" +#include "fprint.h" +#include "field.h" +#include "flist.h" +#include "io.h" +#include "init.h" +#include "output.h" +#include "bit.h" +#include "print.h" + +static int crc_f(int argc, char **argv); +static void crc_help(void); + +static const cmdinfo_t crc_cmd = + { "crc", NULL, crc_f, 0, 1, 0, "[-i|-r|-v]", + N_("manipulate crc values for V5 filesystem structures"), crc_help }; + +void +crc_init(void) +{ + if (xfs_sb_version_hascrc(&mp->m_sb)) + add_command(&crc_cmd); +} + +static void +crc_help(void) +{ + dbprintf(_( +"\n" +" 'crc' validates, invalidates, or recalculates the crc value for\n" +" the current on-disk metadata structures in Version 5 filesystems.\n" +"\n" +" Usage: \"crc [-i|-r|-v]\"\n" +"\n" +)); + +} + +void +xfs_dummy_verify( + struct xfs_buf *bp) +{ + return; +} + +static int +crc_f( + int argc, + char **argv) +{ + const struct xfs_buf_ops *stashed_ops = NULL; + extern char *progname; + const field_t *fields; + const ftattr_t *fa; + flist_t *fl; + int invalidate = 0; + int recalculate = 0; + int validate = 0; + int c; + + if (cur_typ == NULL) { + dbprintf(_("no current type\n")); + return 0; + } + + if (cur_typ->fields == NULL) { + dbprintf(_("current type (%s) is not a structure\n"), + cur_typ->name); + return 0; + } + + if (argc) while ((c = getopt(argc, argv, "irv")) != EOF) { + switch (c) { + case 'i': + invalidate = 1; + break; + case 'r': + recalculate = 1; + break; + case 'v': + validate = 1; + break; + default: + dbprintf(_("bad option for crc command\n")); + return 0; + } + } else + validate = 1; + + if (invalidate + recalculate + validate > 1) { + dbprintf(_("crc command accepts only one option\n")); + return 0; + } + + if ((invalidate || recalculate) && + ((x.isreadonly & LIBXFS_ISREADONLY) || !expert_mode)) { + dbprintf(_("%s not in expert mode, writing disabled\n"), + progname); + return 0; + } + + fields = cur_typ->fields; + + /* if we're a root field type, go down 1 layer to get field list */ + if (fields->name[0] == '\0') { + fa = &ftattrtab[fields->ftyp]; + ASSERT(fa->ftyp == fields->ftyp); + fields = fa->subfld; + } + + /* Search for a CRC field */ + fl = flist_find_ftyp(fields, FLDT_CRC); + if (!fl) { + dbprintf(_("No CRC field found for type %s\n"), cur_typ->name); + return 0; + } + + /* run down the field list and set offsets into the data */ + if (!flist_parse(fields, fl, iocur_top->data, 0)) { + flist_free(fl); + dbprintf(_("parsing error\n")); + return 0; + } + + if (invalidate) { + struct xfs_buf_ops nowrite_ops; + flist_t *sfl; + int bit_length; + int parentoffset; + int crc; + + sfl = fl; + parentoffset = 0; + while (sfl->child) { + parentoffset = sfl->offset; + sfl = sfl->child; + } + ASSERT(sfl->fld->ftyp == FLDT_CRC); + + bit_length = fsize(sfl->fld, iocur_top->data, parentoffset, 0); + bit_length *= fcount(sfl->fld, iocur_top->data, parentoffset); + crc = getbitval(iocur_top->data, sfl->offset, bit_length, BVUNSIGNED); + /* Off by one.. */ + crc = cpu_to_be32(crc + 1); + setbitval(iocur_top->data, sfl->offset, bit_length, &crc); + + /* Temporarily remove write verifier to write a bad CRC */ + stashed_ops = iocur_top->bp->b_ops; + nowrite_ops.verify_read = stashed_ops->verify_read; + nowrite_ops.verify_write = xfs_dummy_verify; + iocur_top->bp->b_ops = &nowrite_ops; + } + + if (invalidate || recalculate) { + if (invalidate) + dbprintf(_("Invalidating CRC:\n")); + else + dbprintf(_("Recalculating CRC:\n")); + + write_cur(); + if (stashed_ops) + iocur_top->bp->b_ops = stashed_ops; + /* re-verify to get proper b_error state */ + iocur_top->bp->b_ops->verify_read(iocur_top->bp); + } else + dbprintf(_("Verifying CRC:\n")); + + /* And show us what we've got! */ + flist_print(fl); + print_flist(fl); + flist_free(fl); + return 0; +} diff --git a/db/crc.h b/db/crc.h new file mode 100644 index 0000000..80ecec3 --- /dev/null +++ b/db/crc.h @@ -0,0 +1,23 @@ +/* + * Copyright (c) 2014 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 + */ + +struct field; + +extern void crc_init(void); +extern void crc_struct(const field_t *fields, int argc, char **argv); +extern void xfs_dummy_verify(struct xfs_buf *bp); diff --git a/db/flist.c b/db/flist.c index 33f7da7..fa19f70 100644 --- a/db/flist.c +++ b/db/flist.c @@ -411,6 +411,40 @@ flist_split( return v; } +/* + * Given a set of fields, scan for a field of the given type. + * Return an flist leading to the first found field + * of that type. + * Return NULL if no field of the given type is found. + */ +flist_t * +flist_find_ftyp( + const field_t *fields, + fldt_t type) +{ + flist_t *fl; + const field_t *f; + const ftattr_t *fa; + + for (f = fields; f->name; f++) { + fl = flist_make(f->name); + fl->fld = f; + if (f->ftyp == type) + return fl; + fa = &ftattrtab[f->ftyp]; + if (fa->subfld) { + flist_t *nfl; + nfl = flist_find_ftyp(fa->subfld, type); + if (nfl) { + fl->child = nfl; + return fl; + } + } + flist_free(fl); + } + return NULL; +} + static void ftok_free( ftok_t *ft) diff --git a/db/flist.h b/db/flist.h index 5c9fba0..3f4b312 100644 --- a/db/flist.h +++ b/db/flist.h @@ -37,3 +37,4 @@ extern int flist_parse(const struct field *fields, flist_t *fl, void *obj, int startoff); extern void flist_print(flist_t *fl); extern flist_t *flist_scan(char *name); +extern flist_t *flist_find_ftyp(const field_t *fields, fldt_t type); diff --git a/db/io.c b/db/io.c index f7393c5..eb3daa1 100644 --- a/db/io.c +++ b/db/io.c @@ -27,6 +27,7 @@ #include "output.h" #include "init.h" #include "malloc.h" +#include "crc.h" static int pop_f(int argc, char **argv); static void pop_help(void); @@ -459,22 +460,37 @@ write_cur_bbs(void) void write_cur(void) { + int skip_crc = (iocur_top->bp->b_ops->verify_write == xfs_dummy_verify); + if (iocur_sp < 0) { dbprintf(_("nothing to write\n")); return; } - if (iocur_top->ino_buf) { + if (iocur_top->ino_buf && !skip_crc) { libxfs_dinode_calc_crc(mp, iocur_top->data); iocur_top->ino_crc_ok = 1; } - if (iocur_top->dquot_buf) + + if (iocur_top->dquot_buf && !skip_crc) xfs_update_cksum(iocur_top->data, sizeof(struct xfs_dqblk), XFS_DQUOT_CRC_OFF); if (iocur_top->bbmap) write_cur_bbs(); else write_cur_buf(); + + /* If we didn't write the crc automatically, re-check validity */ + if (iocur_top->ino_buf && skip_crc) { + xfs_dinode_t *dip; + xfs_ino_t ino; + + dip = iocur_top->data; + ino = iocur_top->ino; + iocur_top->ino_crc_ok = xfs_verify_cksum((char *)dip, + mp->m_sb.sb_inodesize, + XFS_DINODE_CRC_OFF); + } } void diff --git a/db/write.h b/db/write.h index 31e2665..664ddcc 100644 --- a/db/write.h +++ b/db/write.h @@ -20,5 +20,5 @@ struct field; extern void write_init(void); extern void write_block(const field_t *fields, int argc, char **argv); -extern void write_string(const field_t *fields, int argc, char **argv); extern void write_struct(const field_t *fields, int argc, char **argv); +extern void write_string(const field_t *fields, int argc, char **argv); diff --git a/man/man8/xfs_db.8 b/man/man8/xfs_db.8 index 4d8d4ff..0764832 100644 --- a/man/man8/xfs_db.8 +++ b/man/man8/xfs_db.8 @@ -87,16 +87,14 @@ or .I filename read-only. This option is required if the filesystem is mounted. It is only necessary to omit this flag if a command that changes data -.RB ( write ", " blocktrash ) +.RB ( write ", " blocktrash ", " crc ) is to be used. .TP .B \-x Specifies expert mode. This enables the -.B write -and -.B blocktrash -commands. +.RB ( write ", " blocktrash ", " crc +invalidate/revalidate) commands. .TP .B \-V Prints the version number and exits. @@ -409,6 +407,25 @@ conversions such as .I agb .BR fsblock . .TP +.B crc [\-i|\-r|\-v] +Invalidates, revalidates, or validates the CRC (checksum) +field of the current structure, if it has one. +This command is available only on CRC-enabled filesystems. +With no argument, validation is performed. +Each command will display the resulting CRC value and state. +.RS 1.0i +.TP 0.4i +.B \-i +Invalidate the structure's CRC value (incrementing it by one), +and write it to disk. +.TP +.B \-r +Recalculate the current structure's correct CRC value, and write it to disk. +.TP +.B \-v +Validate and display the current value and state of the structure's CRC. +.RE +.TP .BI "daddr [" d ] Set current address to the daddr (512 byte block) given by .IR d . 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relay3.corp.sgi.com (Postfix) with ESMTP id CAB1CAC008 for ; Tue, 16 Sep 2014 23:03:05 -0700 (PDT) X-ASG-Debug-ID: 1410933783-04bdf01097aeea20001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id S0VdHWZbekzbgJ9Z for ; Tue, 16 Sep 2014 23:03:03 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AqkcAC4jGVR5LCtm/2dsb2JhbABggw2BKoIuslgGlhaFawQCAYEXFwF5hAMBAQEDATocIwULCAMOCgklDwUlAyETFoggB700GBiFZIlPB4RLBZ0JlUeDcCsvgkoBAQE Received: from ppp121-44-43-102.lns20.syd6.internode.on.net (HELO dastard) ([121.44.43.102]) by ipmail07.adl2.internode.on.net with ESMTP; 17 Sep 2014 15:33:02 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XU8KH-0004Ja-64; Wed, 17 Sep 2014 16:02:49 +1000 Date: Wed, 17 Sep 2014 16:02:49 +1000 From: Dave Chinner To: Brian Hemme Cc: xfs@oss.sgi.com Subject: Re: mkfs.xfs fails with raid5 and smaller chunk sizes Message-ID: <20140917060249.GR4322@dastard> X-ASG-Orig-Subj: Re: mkfs.xfs fails with raid5 and smaller chunk sizes References: <5418B39C.2060707@rincon.com> <20140916221738.GO4322@dastard> <5418BE0F.9040702@rincon.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5418BE0F.9040702@rincon.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1410933783 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9571 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Sep 16, 2014 at 03:47:43PM -0700, Brian Hemme wrote: > On 09/16/2014 03:17 PM, Dave Chinner wrote: > >On Tue, Sep 16, 2014 at 03:03:08PM -0700, Brian Hemme wrote: > >>Hello all, > >> > >>I am having some odd problems with mkfs.xfs when used on a raid 5 > >>array. The array is built from 6 960GB SSDs all connected to SATA > >>ports on the MB and created with mdadm. If I use a chunk size any > >>smaller then 512K mkfs.xfs just hangs forever. It continues to use > >>CPU and so does the raid array but never completes. If the system > >>is just left running for an extended length of time the whole OS > >>eventually locks up. I have tried this on three different systems > >>with the same results. I have searched all over for someone with > >>similar issues without success. I am hoping I am just doing > >>something clearly wrong and you all can set me straight quickly. > >> > >>Some specifics: > >> Arch linux with 3.14.1 kernel > >> mkfs.xfs version 3.1.11 > >> mdadm - v3.3 - 3rd September 2013 > >> > >>Commands: > >>>mdadm --create /dev/md0 --chunk=64K --level=5 --raid-devices=6 > >>/dev/sd[a-f] > >>>mkfs.xfs /dev/md0 > >> ** This command fails and locks up > >> > >>I have tried specifying the arguments to mkfs.xfs with the same > >>results. Building a 4 drive array seems to require a chunk size of > >>1M or greater to work. Same results if I make a partition on the > >>array and make the fs there. > >mkfs.xfs really should only take a couple of seconds to complete. > >Seeing as you are using SSDs, my first suspicion is that md or the > >SSDs are having problems with discard. Hence you should first > >try 'mkfs.xfs -K /dev/md0' and see if that completes quickly. > > > >Otherwise, output of 'echo w> sysrq-trigger' from dmesg would be a > >good start, as would a 'perf top -G -U' snapshot (run for 30s at > >least a minute after mkfs.xfs starts) to tell us what is burning > >CPU. > > > >Cheers, > > > >Dave. > > Thanks for the quick response! > > Adding the -K seemed to do the trick. However, for my education, > why is this needed in this case? It seems to work without it for > larger chunk sizes or for raid 0 instead of 5. Discard on RAID 5 can require parity recalculation if the discard sizes are small which means RMW operations. I'd say you probably need to ask the linux-raid list to debug whatever issue you are having with the RAID5 code. > It also worked on > our old install with a 3.1.6 kernel. RAID5 discard support was added in 3.1.7.... > Any why would not using the -K > cause enough of a problem that the whole machine hangs? Just trying > to understand this enough to make sure I don't run into problems > down the road. If you cause the IO subsystem to choke up, the system can hang because it can't clean dirty pages of memory and hence you can get ENOMEM situations that can hang the machine. Again, i'd first talk to the linux-raid folk to find out what is causing the RAID5 to be so slow in this case as it's really nothing to do with XFS at this point... Cheers, Dave. -- Dave Chinner david@fromorbit.com From bfoster@redhat.com Wed Sep 17 08:57:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 533547F47 for ; Wed, 17 Sep 2014 08:57:19 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 3F4278F8054 for ; Wed, 17 Sep 2014 06:57:19 -0700 (PDT) X-ASG-Debug-ID: 1410962236-04cbb05486e45750001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id tsvBzMHQra7bnom4 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 17 Sep 2014 06:57:18 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8HDvDrH012272 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 17 Sep 2014 09:57:13 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8HDvCDD028757; Wed, 17 Sep 2014 09:57:12 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id A1751120064; Wed, 17 Sep 2014 09:57:11 -0400 (EDT) Date: Wed, 17 Sep 2014 09:57:11 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH] xfs: flush entire last page of old EOF on truncate up Message-ID: <20140917135711.GB29222@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs: flush entire last page of old EOF on truncate up References: <1410907547-9253-1-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1410907547-9253-1-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1410962237 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Sep 17, 2014 at 08:45:47AM +1000, Dave Chinner wrote: > From: Dave Chinner > > On a sub-page sized filesystem, truncating a mapped region down > leaves us in a world of hurt. We truncate the pagecache, zeroing the > newly unused tail, then punch blocks out from under the page. If we > then truncate the file back up immediately, we expose that unmapped > hole to a dirty page mapped into the user application, and that's > where it all goes wrong. > > In truncating the page cache, we avoid unmapping the tail page of > the cache because it still contains valid data. The problem is that > it also contains a hole after the truncate, but nobody told the mm > subsystem that. Therefore, if the page is dirty before the truncate, > we'll never get a .page_mkwrite callout after we extend the file and > the application writes data into the hole on the page. Hence when > we come to writing that region of the page, it has no blocks and no > delayed allocation reservation and hence we toss the data away. > > This patch adds code to the truncate up case to solve it, by > ensuring the partial page at the old EOF is always cleaned after we > do any zeroing and move the EOF upwards. We can't actually serialise > the page writeback and truncate against page faults (yes, that > problem AGAIN) so this is really just a best effort and assumes it > is extremely unlikely that someone is concurrently writing to the > page at the EOF while extending the file. > > Signed-off-by: Dave Chinner > --- > fs/xfs/xfs_iops.c | 30 ++++++++++++++++++++++++++++++ > 1 file changed, 30 insertions(+) > > diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c > index 63aeca8..a726d37 100644 > --- a/fs/xfs/xfs_iops.c > +++ b/fs/xfs/xfs_iops.c > @@ -853,6 +853,36 @@ xfs_setattr_size( > return error; > truncate_setsize(inode, newsize); > > + /* > + * The "we can't serialise against page faults" pain gets worse. > + * > + * If the file is mapped then we have to clean the page at the old EOF > + * when extending the file. Extending the file can expose changes the > + * underlying page mapping (e.g. from beyond EOF to a hole or > + * unwritten), and so on the next attempt to write to that page we need > + * to remap it for write. i.e. we need .page_mkwrite() to be called. > + * Hence we need to clean the page to clean the pte and so a new write > + * fault will be triggered appropriately. > + * > + * If we do it before we change the inode size, then we can race with a > + * page fault that maps the page with exactly the same problem. If we do > + * it after we change the file size, then a new page fault can come in > + * and allocate space before we've run the rest of the truncate > + * transaction. That's kinda grotesque, but it's better than have data > + * over a hole, and so that's the lesser evil that has been chosen here. > + * > + * The real solution, however, is to have some mechanism for locking out > + * page faults while a truncate is in progress. > + */ > + if (newsize > oldsize && mapping_mapped(VFS_I(ip)->i_mapping)) { > + error = filemap_write_and_wait_range( > + VFS_I(ip)->i_mapping, > + round_down(oldsize, PAGE_CACHE_SIZE), > + round_up(oldsize, PAGE_CACHE_SIZE) - 1); > + if (error) > + return error; > + } > + IIUC, clear_page_dirty_for_io() will clean/writeprotect the page on writeback. Hence any future mmap write generates a (soft) fault and allows the mm subsystem to invoke mkwrite(), which in turn allows XFS to handle the block mapping (e.g., allocating delalloc blocks via get_block()) for the mapped write. I was starting to think about whether we could combine this with the previous writeback in xfs_setattr_size(), but the complex nature of the problem, the long comment required and the notion that we might want to fix this "for real" some day suggests the the separate hunk is probably safer. Anyways, if I'm following the above behavior correctly, this looks fine to me: Reviewed-by: Brian Foster > tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_SIZE); > error = xfs_trans_reserve(tp, &M_RES(mp)->tr_itruncate, 0, 0); > if (error) > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bmh@rincon.com Wed Sep 17 10:07:04 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 01A667F50 for ; Wed, 17 Sep 2014 10:07:04 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 828C5AC002 for ; Wed, 17 Sep 2014 08:07:00 -0700 (PDT) X-ASG-Debug-ID: 1410966417-04cb6c54fdb785c0001-NocioJ Received: from autodiscover.rincon.com (smtp.rincon.com [67.128.198.140]) by cuda.sgi.com with ESMTP id NUCpdVNJCn6VNUCe for ; Wed, 17 Sep 2014 08:06:57 -0700 (PDT) X-Barracuda-Envelope-From: bmh@rincon.com X-Barracuda-Apparent-Source-IP: 67.128.198.140 Received: from brhazbriklab3.rinconres.com (172.16.203.59) by autodiscover.rincon.com (172.16.203.53) with Microsoft SMTP Server id 14.3.195.1; Wed, 17 Sep 2014 08:06:57 -0700 Message-ID: <5419A391.5070203@rincon.com> Date: Wed, 17 Sep 2014 08:06:57 -0700 From: Brian Hemme User-Agent: Mozilla/5.0 (X11; Linux i686 on x86_64; rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1 MIME-Version: 1.0 To: Dave Chinner CC: Subject: Re: mkfs.xfs fails with raid5 and smaller chunk sizes References: <5418B39C.2060707@rincon.com> <20140916221738.GO4322@dastard> <5418BE0F.9040702@rincon.com> <20140917060249.GR4322@dastard> X-ASG-Orig-Subj: Re: mkfs.xfs fails with raid5 and smaller chunk sizes In-Reply-To: <20140917060249.GR4322@dastard> Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: smtp.rincon.com[67.128.198.140] X-Barracuda-Start-Time: 1410966417 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9583 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 09/16/2014 11:02 PM, Dave Chinner wrote: > On Tue, Sep 16, 2014 at 03:47:43PM -0700, Brian Hemme wrote: >> On 09/16/2014 03:17 PM, Dave Chinner wrote: >>> On Tue, Sep 16, 2014 at 03:03:08PM -0700, Brian Hemme wrote: >>>> Hello all, >>>> >>>> I am having some odd problems with mkfs.xfs when used on a raid 5 >>>> array. The array is built from 6 960GB SSDs all connected to SATA >>>> ports on the MB and created with mdadm. If I use a chunk size any >>>> smaller then 512K mkfs.xfs just hangs forever. It continues to use >>>> CPU and so does the raid array but never completes. If the system >>>> is just left running for an extended length of time the whole OS >>>> eventually locks up. I have tried this on three different systems >>>> with the same results. I have searched all over for someone with >>>> similar issues without success. I am hoping I am just doing >>>> something clearly wrong and you all can set me straight quickly. >>>> >>>> Some specifics: >>>> Arch linux with 3.14.1 kernel >>>> mkfs.xfs version 3.1.11 >>>> mdadm - v3.3 - 3rd September 2013 >>>> >>>> Commands: >>>>> mdadm --create /dev/md0 --chunk=64K --level=5 --raid-devices=6 >>>> /dev/sd[a-f] >>>>> mkfs.xfs /dev/md0 >>>> ** This command fails and locks up >>>> >>>> I have tried specifying the arguments to mkfs.xfs with the same >>>> results. Building a 4 drive array seems to require a chunk size of >>>> 1M or greater to work. Same results if I make a partition on the >>>> array and make the fs there. >>> mkfs.xfs really should only take a couple of seconds to complete. >>> Seeing as you are using SSDs, my first suspicion is that md or the >>> SSDs are having problems with discard. Hence you should first >>> try 'mkfs.xfs -K /dev/md0' and see if that completes quickly. >>> >>> Otherwise, output of 'echo w> sysrq-trigger' from dmesg would be a >>> good start, as would a 'perf top -G -U' snapshot (run for 30s at >>> least a minute after mkfs.xfs starts) to tell us what is burning >>> CPU. >>> >>> Cheers, >>> >>> Dave. >> Thanks for the quick response! >> >> Adding the -K seemed to do the trick. However, for my education, >> why is this needed in this case? It seems to work without it for >> larger chunk sizes or for raid 0 instead of 5. > Discard on RAID 5 can require parity recalculation if the discard > sizes are small which means RMW operations. I'd say you probably > need to ask the linux-raid list to debug whatever issue you are > having with the RAID5 code. > >> It also worked on >> our old install with a 3.1.6 kernel. > RAID5 discard support was added in 3.1.7.... > >> Any why would not using the -K >> cause enough of a problem that the whole machine hangs? Just trying >> to understand this enough to make sure I don't run into problems >> down the road. > If you cause the IO subsystem to choke up, the system can hang > because it can't clean dirty pages of memory and hence you can get > ENOMEM situations that can hang the machine. Again, i'd first talk > to the linux-raid folk to find out what is causing the RAID5 to be > so slow in this case as it's really nothing to do with XFS at this > point... > > Cheers, > > Dave. Thanks very much Dave. You got me everything I needed. Brian From gwlyq@gmail.ru Wed Sep 17 16:03:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 8F1987F53 for ; Wed, 17 Sep 2014 16:03:38 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 787C2304048 for ; Wed, 17 Sep 2014 14:03:38 -0700 (PDT) X-ASG-Debug-ID: 1410987805-04cbb05488e59680001-NocioJ Received: from vps1.iwannaweb.com.au (vps1.iwannaweb.com.au [110.232.114.170]) by cuda.sgi.com with ESMTP id sBexHoXqZ9b3EE12 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 17 Sep 2014 14:03:26 -0700 (PDT) X-Barracuda-Envelope-From: gwlyq@gmail.ru X-Barracuda-Apparent-Source-IP: 110.232.114.170 Received: from 94.41.73.219.dynamic.ufanet.ru ([94.41.73.219]:2415 helo=Unknown) by vps1.iwannaweb.com.au with esmtpa (Exim 4.82) (envelope-from ) id 1XUMNn-0005Q0-NJ for xfs@oss.sgi.com; Thu, 18 Sep 2014 07:03:24 +1000 Message-ID: Reply-To: "350$" From: "350$" To: Subject: =?windows-1251?B?x+Dw4OHu8u7qIDM1MCQg4iDk5e38Li4uW2Jt?= =?windows-1251?B?b2hqcl0=?= Date: Thu, 18 Sep 2014 01:02:53 +0400 X-ASG-Orig-Subj: =?windows-1251?B?x+Dw4OHu8u7qIDM1MCQg4iDk5e38Li4uW2Jt?= =?windows-1251?B?b2hqcl0=?= Organization: 350$ MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_142C_01CFD2DC.46C99D90" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8089.726 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8089.726 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - vps1.iwannaweb.com.au X-AntiAbuse: Original Domain - oss.sgi.com X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - gmail.ru X-Get-Message-Sender-Via: vps1.iwannaweb.com.au: authenticated_id: industrial@hakoaustralia.com.au X-Barracuda-Connect: vps1.iwannaweb.com.au[110.232.114.170] X-Barracuda-Start-Time: 1410987806 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.01 X-Barracuda-Spam-Status: No, SCORE=0.01 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC2_SA022a, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9591 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message 0.01 BSF_SC2_SA022a Custom Rule SA022a This is a multi-part message in MIME format. ------=_NextPart_000_142C_01CFD2DC.46C99D90 Content-Type: text/plain; charset="windows-1251" Content-Transfer-Encoding: quoted-printable =C7=E0=F0=E0=E1=EE=F2=EE=EA 350$ =E2 =E4=E5=ED=FC![epwkn]=20 =DD=F2=EE =F0=E5=E0=EB=FC=ED=EE![cubhosov]=20 =D0=E0=E1=EE=F2=E0 =E2 =E8=ED=F2=E5=F0=ED=E5=F2=E5![cnnaojw]=20 =C7=E0=F0=E0=E1=EE=F2=E0=E9 =EF=E5=F0=E2=FB=E5 =E4=E5=ED=FC=E3=E8 =F3=E6=E5= =F1=E5=E3=EE=E4=ED=FF![pwlxjss]=20 =C7=E0=F5=EE=E4=E8...=20 [http://tinyurl.com/qjj3jfl]=20 [kobzvbcf]=20 [gkftllkb]=20 ------=_NextPart_000_142C_01CFD2DC.46C99D90 Content-Type: text/html; charset="windows-1251" Content-Transfer-Encoding: quoted-printable
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[kjmlz] ------=_NextPart_000_142C_01CFD2DC.46C99D90-- From david@fromorbit.com Wed Sep 17 16:25:00 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 282B27F55 for ; Wed, 17 Sep 2014 16:25:00 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 07023304048 for ; Wed, 17 Sep 2014 14:24:59 -0700 (PDT) X-ASG-Debug-ID: 1410989094-04cb6c54feb8a2e0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id tXw2ZlOFGHM3GYaf for ; Wed, 17 Sep 2014 14:24:54 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjAzAEf7GVR5LCtmPGdsb2JhbABhgw2DWIUHrTgGlhiFagICAQEBgRcXAQYBAQEBODeEAwEBAQMBJxMcIwULCAMOBwMJJQ8FJQMHGhMbiBsHwDMYhXGEDIVXCweESwWPOI1TmTkrL4JKAQEB Received: from ppp121-44-43-102.lns20.syd6.internode.on.net (HELO dastard) ([121.44.43.102]) by ipmail06.adl6.internode.on.net with ESMTP; 18 Sep 2014 06:54:53 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XUMia-0006YS-Cd; Thu, 18 Sep 2014 07:24:52 +1000 Date: Thu, 18 Sep 2014 07:24:52 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH] xfs: flush entire last page of old EOF on truncate up Message-ID: <20140917212452.GW4322@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs: flush entire last page of old EOF on truncate up References: <1410907547-9253-1-git-send-email-david@fromorbit.com> <20140917135711.GB29222@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140917135711.GB29222@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1410989094 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9592 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Sep 17, 2014 at 09:57:11AM -0400, Brian Foster wrote: > On Wed, Sep 17, 2014 at 08:45:47AM +1000, Dave Chinner wrote: > > From: Dave Chinner > > > > On a sub-page sized filesystem, truncating a mapped region down > > leaves us in a world of hurt. We truncate the pagecache, zeroing the > > newly unused tail, then punch blocks out from under the page. If we > > then truncate the file back up immediately, we expose that unmapped > > hole to a dirty page mapped into the user application, and that's > > where it all goes wrong. > > > > In truncating the page cache, we avoid unmapping the tail page of > > the cache because it still contains valid data. The problem is that > > it also contains a hole after the truncate, but nobody told the mm > > subsystem that. Therefore, if the page is dirty before the truncate, > > we'll never get a .page_mkwrite callout after we extend the file and > > the application writes data into the hole on the page. Hence when > > we come to writing that region of the page, it has no blocks and no > > delayed allocation reservation and hence we toss the data away. > > > > This patch adds code to the truncate up case to solve it, by > > ensuring the partial page at the old EOF is always cleaned after we > > do any zeroing and move the EOF upwards. We can't actually serialise > > the page writeback and truncate against page faults (yes, that > > problem AGAIN) so this is really just a best effort and assumes it > > is extremely unlikely that someone is concurrently writing to the > > page at the EOF while extending the file. > > > > Signed-off-by: Dave Chinner > > --- > > fs/xfs/xfs_iops.c | 30 ++++++++++++++++++++++++++++++ > > 1 file changed, 30 insertions(+) > > > > diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c > > index 63aeca8..a726d37 100644 > > --- a/fs/xfs/xfs_iops.c > > +++ b/fs/xfs/xfs_iops.c > > @@ -853,6 +853,36 @@ xfs_setattr_size( > > return error; > > truncate_setsize(inode, newsize); > > > > + /* > > + * The "we can't serialise against page faults" pain gets worse. > > + * > > + * If the file is mapped then we have to clean the page at the old EOF > > + * when extending the file. Extending the file can expose changes the > > + * underlying page mapping (e.g. from beyond EOF to a hole or > > + * unwritten), and so on the next attempt to write to that page we need > > + * to remap it for write. i.e. we need .page_mkwrite() to be called. > > + * Hence we need to clean the page to clean the pte and so a new write > > + * fault will be triggered appropriately. > > + * > > + * If we do it before we change the inode size, then we can race with a > > + * page fault that maps the page with exactly the same problem. If we do > > + * it after we change the file size, then a new page fault can come in > > + * and allocate space before we've run the rest of the truncate > > + * transaction. That's kinda grotesque, but it's better than have data > > + * over a hole, and so that's the lesser evil that has been chosen here. > > + * > > + * The real solution, however, is to have some mechanism for locking out > > + * page faults while a truncate is in progress. > > + */ > > + if (newsize > oldsize && mapping_mapped(VFS_I(ip)->i_mapping)) { > > + error = filemap_write_and_wait_range( > > + VFS_I(ip)->i_mapping, > > + round_down(oldsize, PAGE_CACHE_SIZE), > > + round_up(oldsize, PAGE_CACHE_SIZE) - 1); > > + if (error) > > + return error; > > + } > > + > > IIUC, clear_page_dirty_for_io() will clean/writeprotect the page on > writeback. Hence any future mmap write generates a (soft) fault and > allows the mm subsystem to invoke mkwrite(), which in turn allows XFS to > handle the block mapping (e.g., allocating delalloc blocks via > get_block()) for the mapped write. That is correct. > I was starting to think about whether we could combine this with the > previous writeback in xfs_setattr_size(), but the complex nature of the > problem, the long comment required and the notion that we might want to > fix this "for real" some day suggests the the separate hunk is probably > safer. I went through several different iterations of flush on truncate down, combine into xfs_zero_eof, flush on truncate up, flush before page cache truncate, flush after, etc. They all worked to solve the problem to some level, but it the deciding factor was that the truncate down/mwrite to tail page within EOF/truncate up case requires the flush to be in the truncate up code for mwrite after truncate up to work correctly. So then it was really a case of working out where to minimise the potential impact of a racing page fault..... > Anyways, if I'm following the above behavior correctly, this > looks fine to me: > > Reviewed-by: Brian Foster Thanks. -Dave. -- Dave Chinner david@fromorbit.com From bounce@client25.emailb.biz Thu Sep 18 01:37:55 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=3.0 required=5.0 tests=BAD_CREDIT,DATE_IN_PAST_12_24, HTML_MESSAGE,NORMAL_HTTP_TO_IP,RCVD_NUMERIC_HELO autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 219F27F4E for ; Thu, 18 Sep 2014 01:37:55 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id E45C5304032 for ; Wed, 17 Sep 2014 23:37:54 -0700 (PDT) X-ASG-Debug-ID: 1411022266-04bdf0109ab2b720001-NocioJ Received: from server25.emailb.biz (server25.emailb.biz [149.210.165.4]) by cuda.sgi.com with ESMTP id gp4qh53oVg7nPA6D (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 17 Sep 2014 23:37:47 -0700 (PDT) X-Barracuda-Envelope-From: bounce@client25.emailb.biz X-Barracuda-Apparent-Source-IP: 149.210.165.4 Received: from localhost ([::1]:39509 helo=149.210.165.4) by server25.emailb.biz with esmtpa (Exim 4.82) (envelope-from ) id 1XUVLc-0000Oc-PY for xfs@oss.sgi.com; Thu, 18 Sep 2014 08:37:44 +0200 To: xfs@oss.sgi.com Subject: Need funds immediately? 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--b1_9d8db6e9972c86792a029841ab894097-- From robin.listas@gmail.com Thu Sep 18 07:46:46 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id A573C7F37 for ; Thu, 18 Sep 2014 07:46:46 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 433E0AC002 for ; Thu, 18 Sep 2014 05:46:43 -0700 (PDT) X-ASG-Debug-ID: 1411044397-04bdf0109ab406d0001-NocioJ Received: from mail-we0-f173.google.com (mail-we0-f173.google.com [74.125.82.173]) by cuda.sgi.com with ESMTP id 1ZzCiLz780tRzdDy (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO); Thu, 18 Sep 2014 05:46:38 -0700 (PDT) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.173 Received: by mail-we0-f173.google.com with SMTP id t60so855057wes.18 for ; Thu, 18 Sep 2014 05:46:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:cc:subject:message-id:user-agent:mime-version :content-type; bh=7h3UPLXdw49paw1JSAaN4Eex2re51EG1s1mwOCZSanI=; b=VtK7x1jg6veij5Ag00CXlxfrCpBa8Bz6al5JDbu/J3BMSiB9aed0xN/g4ssoX8AN3+ ogRsj2TA0w9DxcRFAsOvyLeAtpLaYb3PMSg8YtVe2N6ZH+X+Jq6mGwhKuoC6MF2LE3yS pr10z4D4V0127Y3iElyPEsZnV7UZ87sM8MshnmxZQQwfBPpUZuIEynkTqRiJLLiTNG10 X39Dq3HltHneWfCEmA87oqFAPUyZsALfb94FgGms/XT2hy22g6p9lpDcvrp9nULlw99h DSrrhOKYyc60z7m4Ble2MbRMrPP/9t6SvXORB3MkUpR+yMrZ22k6h13wN4hTujSl86O9 MKGQ== X-Received: by 10.180.211.208 with SMTP id ne16mr263070wic.71.1411044397171; Thu, 18 Sep 2014 05:46:37 -0700 (PDT) Received: from Telcontar.valinor (177.Red-79-159-63.staticIP.rima-tde.net. [79.159.63.177]) by mx.google.com with ESMTPSA id pn5sm25913659wjc.4.2014.09.18.05.46.36 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 18 Sep 2014 05:46:36 -0700 (PDT) Sender: Carlos Robinson Received: from localhost (localhost [127.0.0.1]) by Telcontar.valinor (Postfix) with ESMTP id E675B61129; Thu, 18 Sep 2014 14:46:33 +0200 (CEST) X-Virus-Scanned: amavisd-new at valinor Received: from Telcontar.valinor ([127.0.0.1]) by localhost (Telcontar.valinor [127.0.0.1]) (amavisd-new, port 10024) with LMTP id JIZSReHHiBkk; Thu, 18 Sep 2014 14:46:33 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by Telcontar.valinor (Postfix) with ESMTP id CA6B460443; Thu, 18 Sep 2014 14:46:32 +0200 (CEST) Date: Thu, 18 Sep 2014 14:46:32 +0200 (CEST) From: "Carlos E. R." X-X-Sender: cer@Telcontar.valinor To: XFS mailing list cc: xfs-owner@oss.sgi.com Subject: What's up with this list? Message-ID: X-ASG-Orig-Subj: What's up with this list? User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-1463808511-51534903-1411044392=:6675" X-Barracuda-Connect: mail-we0-f173.google.com[74.125.82.173] X-Barracuda-Start-Time: 1411044398 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9613 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1463808511-51534903-1411044392=:6675 Content-Type: TEXT/PLAIN; format=flowed; charset=UTF-8 Content-Transfer-Encoding: 8BIT -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, Now an then I get messages like this: ++································· Your membership in the mailing list xfs has been disabled due to excessive bounces The last bounce received from you was dated 18-Sep-2014. You will not get any more messages from this list until you re-enable your membership. You will receive 3 more reminders like this before your membership in the list is deleted. To re-enable your membership, you can simply respond to this message (leaving the Subject: line intact), or visit the confirmation page at ... ·································++- Bounces? I'm subscribed to several mail lists, and this is the only one "complaining". And as I do not know what messages bounced, I can not investigate it. My guess is that those emails were clear and flagrant spam, and as such were rejected by my ISP. The mail list should refuse them on entry and not resend them to the listers. - -- Cheers, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iEYEARECAAYFAlQa1CgACgkQtTMYHG2NR9W0ggCeJAObGhaHx9quXJPCQUggFo// 9PwAnilNJEj3gfi+X+a29MVjo/MDEGvO =CBjB -----END PGP SIGNATURE----- ---1463808511-51534903-1411044392=:6675-- From tdm@sgi.com Thu Sep 18 10:33:56 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE,RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 51DD07F37 for ; Thu, 18 Sep 2014 10:33:56 -0500 (CDT) Received: from estes.americas.sgi.com (estes.americas.sgi.com [128.162.236.10]) by relay2.corp.sgi.com (Postfix) with ESMTP id 22059304043 for ; Thu, 18 Sep 2014 08:33:53 -0700 (PDT) Received: from [128.162.232.11] (porter.americas.sgi.com [128.162.232.11]) by estes.americas.sgi.com (Postfix) with ESMTP id F2DD27002BF9 for ; Thu, 18 Sep 2014 10:33:52 -0500 (CDT) Message-ID: <541AFB60.5030403@sgi.com> Date: Thu, 18 Sep 2014 10:33:52 -0500 From: Troy McCorkell User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.1.5) Gecko/20091204 Thunderbird/3.0 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: Re: What's up with this list? References: In-Reply-To: Content-Type: multipart/alternative; boundary="------------010103060904090701090203" This is a multi-part message in MIME format. --------------010103060904090701090203 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 09/18/2014 07:46 AM, Carlos E. R. wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > > > Hi, > > Now an then I get messages like this: > > ++································· > Your membership in the mailing list xfs has been disabled due to > excessive bounces The last bounce received from you was dated > 18-Sep-2014. You will not get any more messages from this list until > you re-enable your membership. You will receive 3 more reminders like > this before your membership in the list is deleted. > > To re-enable your membership, you can simply respond to this message > (leaving the Subject: line intact), or visit the confirmation page at > > ... > > ·································++- > > > Bounces? I'm subscribed to several mail lists, and this is the only > one "complaining". And as I do not know what messages bounced, I can > not investigate it. > > My guess is that those emails were clear and flagrant spam, and as > such were rejected by my ISP. > > The mail list should refuse them on entry and not resend them to the > listers. > > - -- Cheers, > Carlos E. R. > (from 13.1 x86_64 "Bottle" at Telcontar) > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v2.0.22 (GNU/Linux) > > iEYEARECAAYFAlQa1CgACgkQtTMYHG2NR9W0ggCeJAObGhaHx9quXJPCQUggFo// > 9PwAnilNJEj3gfi+X+a29MVjo/MDEGvO > =CBjB > -----END PGP SIGNATURE----- > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs > Carlos, I will forward your email to the SGI IT group. Thanks, Troy McCorkell --------------010103060904090701090203 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit On 09/18/2014 07:46 AM, Carlos E. R. wrote:
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1



Hi,

Now an then I get messages like this:

++·································
Your membership in the mailing list xfs has been disabled due to
excessive bounces The last bounce received from you was dated
18-Sep-2014.  You will not get any more messages from this list until
you re-enable your membership.  You will receive 3 more reminders like
this before your membership in the list is deleted.

To re-enable your membership, you can simply respond to this message
(leaving the Subject: line intact), or visit the confirmation page at

...

·································++-


Bounces? I'm subscribed to several mail lists, and this is the only one "complaining". And as I do not know what messages bounced, I can not investigate it.

My guess is that those emails were clear and flagrant spam, and as such were rejected by my ISP.

The mail list should refuse them on entry and not resend them to the listers.

- -- Cheers,
       Carlos E. R.
       (from 13.1 x86_64 "Bottle" at Telcontar)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)

iEYEARECAAYFAlQa1CgACgkQtTMYHG2NR9W0ggCeJAObGhaHx9quXJPCQUggFo//
9PwAnilNJEj3gfi+X+a29MVjo/MDEGvO
=CBjB
-----END PGP SIGNATURE-----

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

I will forward your email to the SGI IT group.

Thanks,
Troy McCorkell

--------------010103060904090701090203-- From bfoster@redhat.com Thu Sep 18 13:54:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 6807C7F37 for ; Thu, 18 Sep 2014 13:54:25 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id EB037AC009 for ; Thu, 18 Sep 2014 11:54:24 -0700 (PDT) X-ASG-Debug-ID: 1411066463-04cb6c50e5105c0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id vTTVgjjpN9KxCeWW (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 18 Sep 2014 11:54:23 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8IIsM12000664 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Thu, 18 Sep 2014 14:54:22 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8IIsL8i005118 for ; Thu, 18 Sep 2014 14:54:21 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 486EC120064; Thu, 18 Sep 2014 14:54:20 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH] xfs: restore buffer_head unwritten bit on ioend cancel Date: Thu, 18 Sep 2014 14:54:20 -0400 X-ASG-Orig-Subj: [PATCH] xfs: restore buffer_head unwritten bit on ioend cancel Message-Id: <1411066460-23992-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411066463 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 xfs_vm_writepage() walks each buffer_head on the page, maps to the block on disk and attaches to a running ioend structure that represents the I/O submission. A new ioend is created when the type of I/O (unwritten, delayed allocation or overwrite) required for a particular buffer_head differs from the previous. If a buffer_head is a delalloc or unwritten buffer, the associated bits are cleared by xfs_map_at_offset() once the buffer_head is added to the ioend. The process of mapping each buffer_head occurs in xfs_map_blocks() and acquires the ilock in blocking or non-blocking mode, depending on the type of writeback in progress. If the lock cannot be acquired for non-blocking writeback, we cancel the ioend, redirty the page and return. Writeback will revisit the page at some later point. Note that we acquire the ilock for each buffer on the page. Therefore during non-blocking writeback, it is possible to add an unwritten buffer to the ioend, clear the unwritten state, fail to acquire the ilock when mapping a subsequent buffer and cancel the ioend. If this occurs, the unwritten status of the buffer sitting in the ioend has been lost. The page will eventually hit writeback again, but xfs_vm_writepage() submits overwrite I/O instead of unwritten I/O and does not perform unwritten extent conversion at I/O completion. This leads to data corruption because unwritten extents are treated as holes on reads and zeroes are returned instead of reading from disk. Modify xfs_cancel_ioend() to restore the buffer unwritten bit for ioends of type XFS_IO_UNWRITTEN. This ensures that unwritten extent conversion occurs once the page is eventually written back. Signed-off-by: Brian Foster --- Hi all, This fixes the problem I've been chasing the past few days with regard to data corruption after hole punch. It turns out the problem isn't directly related to the hole punch after all. I found that the problem still occurs when I remove the truncate_pagecache_range() rounding from xfs_free_file_space(). The difference is data is still sitting in cache and the pages aren't thrown away until reclaimed. E.g., the file corruption is reproducible on subsequent remount. The current method of rounding the truncate throws the pages away such that the corruption is detectable immediately after the hole punch. This is only lightly tested so far with my hacky reproducer. The next step is to turn it into a regression test. xfstests test to follow... Brian fs/xfs/xfs_aops.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index 2f50253..f5b2453 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -560,6 +560,13 @@ xfs_cancel_ioend( do { next_bh = bh->b_private; clear_buffer_async_write(bh); + /* + * The unwritten flag is cleared when added to the + * ioend. We're not submitting for I/O so mark the + * buffer unwritten again for next time around. + */ + if (ioend->io_type == XFS_IO_UNWRITTEN) + set_buffer_unwritten(bh); unlock_buffer(bh); } while ((bh = next_bh) != NULL); -- 1.8.3.1 From bpm@sgi.com Thu Sep 18 14:56:50 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D9F157F37 for ; Thu, 18 Sep 2014 14:56:50 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id 991D38F804B; Thu, 18 Sep 2014 12:56:50 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 6493E4266DC; Thu, 18 Sep 2014 14:56:50 -0500 (CDT) Date: Thu, 18 Sep 2014 14:56:50 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [RFC v2] Unicode/UTF-8 support for XFS Message-ID: <20140918195650.GI19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-06-14) Hi, I'm posting this RFC for Unicode support in XFS on Olaf's behalf, as he is busy with other projects. This is the second revision of the series. The first is available here: http://oss.sgi.com/archives/xfs/2014-09/msg00169.html In response to the initial feedback, the changes in version 2 include: * linux-fsdevel in the To: line, * Updated design notes, * Separation of the fs-independent trie and support code into utf8norm.ko, * A mechanism for loading the normalization module only when necessary. I'll post the whole series for completeness sake. Many on -fsdevel will not be interested in the xfs-specific bits, but it may be helpful to have the full series as an example and for testing purposes. First there is a set of kernel bits, then some libxfs/xfsprogs stuff, and finally a test. (Note: I am not posting the unicode database files due to their large size. There are scripts to download them from unicode.org in the relevant commit headers.) TODO: Store the unicode version number of the filesystem on disk in the super block. Thanks, Ben Here are Olaf's design notes: ----------------------------------------------------------------------------- Unicode/UTF-8 support for XFS So we had a customer request proper unicode support... * What does "supporting unicode" actually mean? >From a text processing point of view, what a filesystem does with filenames is simple: it stores and retrieves them, and compares them for equality. It may reject certain byte sequences as invalid filenames (for example, no filename can contain an ASCII NUL). I've been taking it as a given that when a file is created with a certain byte sequence as its name, then a subsequent directory listing will contain that same byte sequence among the names listed. This leaves comparing names for equality, and in my view this is what "supporting unicode" revolves about. The present state of affairs is that different byte sequences are different filenames. This amounts to tolerating unicode without actually supporting it. To support unicode we have to interpret filenames. What happens when (part of) a filename cannot be interpreted? We can reject the filename, interpret the parts we can, or punt and accept it as an uninterpreted blob. Rejecting ill-formed filenames was my first choice, but I came around on the issue: there are too many ways in which you can end up with having to deal with ill-formed filenames that would leave a user with no recourse but to move whatever they're doing to a different filesystem. Unpacking a tarball with filenames in a different encoding is an example. Partial interpretation of an ill-formed filename just strikes me as the kind of bad idea that most half-houses are. I admit that I have no stronger objection to this than the fact that it makes the code even more complicated and fragile. Which leaves "blob" as the preferred option by default for coping with ill-formed filenames. When comparing well-formed filenames, the question now becomes which byte sequences are considered to be alternative spellings of the same filename. This is where normalization forms come into play, and the unicode standard has quite a bit to say about the subject. If all you're doing is comparison, then choosing NFD over NFC is easy, because the former is easier to calculate than the latter. If you want various spellings of "office" to compare equal, then picking NFKD over NFD for comparison is also an obvious choice. (Hand-picking individual compatibility forms is truly a bad idea.) Ways to spell "office": "o_f_f_i_c_e", "o_f_fi_c_e", and "o_ffi_c_e", using no ligatures, the fi ligature, or the ffi ligature. (Some fool thought it a good idea to add these ligatures to unicode, all we get to decide is how to cope.) The most contentious part is (should be) ignoring the codepoints with the Default_Ignorable_Code_Point property. I've included the list below. My argument, such as it is, is that these code points either have no visible rendering, or in cases like the soft hyphen, are only conditionally visible. The problem with these (as I see it) is that on seeing a filename that might contain them you cannot tell whether they are present. So I propose to ignore them for the purpose of comparing filenames for equality. Finally, case folding. First of all, it is optional. Then the issue is that you either go the language-specific route, or simplify the task by "just" doing a full casefold (C+F, in unicode parlance). Looking around the net I tend to find that if you're going to do casefolding at all, then a language-independent full casefold is preferred because it is the most predictable option. See http://www.w3.org/TR/charmod-norm/ for an example of that kind of reasoning. An additional question is whether case folding should be a fixed (mkfs-time) property of a filesystem or can be enabled and disabled on the fly. When mixing these modes, preferring exact matches is easy. But after case-sensitive creates of files named "README" and "readme", which of these two files will be found by case-insensitive lookups of "Readme", and "ReadMe"? Does the answer differ if the order in which the files were created is reversed? I do not have good answers to those questions, and absent such answers the behavior of a filesystem becomes hard to predict. This may not be a bug according to the design, but it will be experienced as a bug by users. This is why in these patches case folding is a property set at mkfs time. All of these choices can be argued with, but I do believe that the particular combination of choices I made is a defensible one. The code refers to these normalization forms as nfkdi and nfkdicf. * XFS-specific design notes. XFS uses byte strings for filenames, so UTF-8 is the expected format for unicode filenames. This does raise the question what criteria a byte string must meet to be UTF-8. We settled on the following: - Valid unicode code points are 0..0x10FFFF, except that - The surrogates 0xD800..0xDFFF are not valid code points, and - Valid UTF-8 must be a shortest encoding of a valid unicode code point. In addition, U+0 (ASCII NUL, '\0') is used to terminate byte strings (and is itself not part of the string). Moreover strings may be length-limited in addition to being NUL-terminated (there is no such thing as an embedded NUL in a length-limited string). The code uses ("leverages", in corp-speak) the existing XFS infrastructure for case-insensitive filenames. Like the CI code, the name used to create a file is stored on disk, and returned in a lookup. When comparing filenames the normalized forms of the names being compared are generated on the fly from the non-normalized forms stored on disk. If the borgbit (the bit enabling legacy ASCII-based CI in XFS) is set in the superblock, then case folding is added into the mix. This is the nfkdicf normalization form mentioned above. It allows for the creation of case-insensitive filesystems with UTF-8 support. * Implementation notes. Strings are normalized using a trie that stores the relevant information. The trie itself is about 250kB in size, and lives in a separate module. The trie is not checked in: instead we add the source files from the Unicode Character Database and a program that creates the header containing the trie. The key for a lookup in the trie is a UTF-8 sequence. Each valid UTF-8 sequence leads to a leaf. No invalid sequence does. This means that trie lookups can be used to validate UTF-8 sequences, which why there is no specialized code for the same purpose. The trie contains information for the version of unicode in which each code point was defined. This matters because non-normalized strings are stored on disk, and newer versions of unicode may introduce new normalized forms. Ideally, the version of unicode used by the filesystem is stored in the filesystem. The trie also accounts for corrections made in the past to normalizations. This has little value today, because any newly created filesystem would be using unicode version 7.0.0. It is included in order to show, not tell, that such corrections can be handled if they are added in future revisions. The algorithm used to calculate the sequences of bytes for the normalized form of a UTF-8 string is tricky. The core is found in utf8byte(), with an explanation in the preceeding comment. The non-XFS-specific supporting code functions have the prefix 'utf8n' if they handle length-limited strings, and 'utf8' if they handle NUL-terminated strings. ---- # Derived Property: Default_Ignorable_Code_Point # Generated from # Other_Default_Ignorable_Code_Point # + Cf (Format characters) # + Variation_Selector # - White_Space # - FFF9..FFFB (Annotation Characters) # - 0600..0605, 06DD, 070F, 110BD (exceptional Cf characters that should be visible) 00AD ; Default_Ignorable_Code_Point # Cf SOFT HYPHEN 034F ; Default_Ignorable_Code_Point # Mn COMBINING GRAPHEME JOINER 061C ; Default_Ignorable_Code_Point # Cf ARABIC LETTER MARK 115F..1160 ; Default_Ignorable_Code_Point # Lo [2] HANGUL CHOSEONG FILLER..HANGUL JUNGSEONG FILLER 17B4..17B5 ; Default_Ignorable_Code_Point # Mn [2] KHMER VOWEL INHERENT AQ..KHMER VOWEL INHERENT AA 180B..180D ; Default_Ignorable_Code_Point # Mn [3] MONGOLIAN FREE VARIATION SELECTOR ONE..MONGOLIAN FREE VARIATION SELECTOR THREE 180E ; Default_Ignorable_Code_Point # Cf MONGOLIAN VOWEL SEPARATOR 200B..200F ; Default_Ignorable_Code_Point # Cf [5] ZERO WIDTH SPACE..RIGHT-TO-LEFT MARK 202A..202E ; Default_Ignorable_Code_Point # Cf [5] LEFT-TO-RIGHT EMBEDDING..RIGHT-TO-LEFT OVERRIDE 2060..2064 ; Default_Ignorable_Code_Point # Cf [5] WORD JOINER..INVISIBLE PLUS 2065 ; Default_Ignorable_Code_Point # Cn 2066..206F ; Default_Ignorable_Code_Point # Cf [10] LEFT-TO-RIGHT ISOLATE..NOMINAL DIGIT SHAPES 3164 ; Default_Ignorable_Code_Point # Lo HANGUL FILLER FE00..FE0F ; Default_Ignorable_Code_Point # Mn [16] VARIATION SELECTOR-1..VARIATION SELECTOR-16 FEFF ; Default_Ignorable_Code_Point # Cf ZERO WIDTH NO-BREAK SPACE FFA0 ; Default_Ignorable_Code_Point # Lo HALFWIDTH HANGUL FILLER FFF0..FFF8 ; Default_Ignorable_Code_Point # Cn [9] .. 1BCA0..1BCA3 ; Default_Ignorable_Code_Point # Cf [4] SHORTHAND FORMAT LETTER OVERLAP..SHORTHAND FORMAT UP STEP 1D173..1D17A ; Default_Ignorable_Code_Point # Cf [8] MUSICAL SYMBOL BEGIN BEAM..MUSICAL SYMBOL END PHRASE E0000 ; Default_Ignorable_Code_Point # Cn E0001 ; Default_Ignorable_Code_Point # Cf LANGUAGE TAG E0002..E001F ; Default_Ignorable_Code_Point # Cn [30] .. E0020..E007F ; Default_Ignorable_Code_Point # Cf [96] TAG SPACE..CANCEL TAG E0080..E00FF ; Default_Ignorable_Code_Point # Cn [128] .. E0100..E01EF ; Default_Ignorable_Code_Point # Mn [240] VARIATION SELECTOR-17..VARIATION SELECTOR-256 E01F0..E0FFF ; Default_Ignorable_Code_Point # Cn [3600] .. # Total code points: 4173 ---- From bpm@sgi.com Thu Sep 18 15:08:20 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 5A0407F37 for ; Thu, 18 Sep 2014 15:08:20 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id C035BAC003; Thu, 18 Sep 2014 13:08:16 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 73EAC4266DC; Thu, 18 Sep 2014 15:08:16 -0500 (CDT) Date: Thu, 18 Sep 2014 15:08:16 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 01/10] xfs: return the first match during case-insensitive lookup. Message-ID: <20140918200816.GC4482@sgi.com> References: <20140918195650.GI19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918195650.GI19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Change the XFS case-insensitive lookup code to return the first match found, even if it is not an exact match. Whether a filesystem uses case-insensitive lookups is determined by a superblock bit set during filesystem creation. This means that normal use cannot create two files that both match the same filename. Signed-off-by: Olaf Weber --- fs/xfs/libxfs/xfs_dir2_block.c | 17 +++------ fs/xfs/libxfs/xfs_dir2_leaf.c | 37 ++++---------------- fs/xfs/libxfs/xfs_dir2_node.c | 79 ++++++++++++++++-------------------------- fs/xfs/libxfs/xfs_dir2_sf.c | 8 ++--- 4 files changed, 45 insertions(+), 96 deletions(-) diff --git a/fs/xfs/libxfs/xfs_dir2_block.c b/fs/xfs/libxfs/xfs_dir2_block.c index 9628cec..990bf0c 100644 --- a/fs/xfs/libxfs/xfs_dir2_block.c +++ b/fs/xfs/libxfs/xfs_dir2_block.c @@ -725,28 +725,21 @@ xfs_dir2_block_lookup_int( dep = (xfs_dir2_data_entry_t *) ((char *)hdr + xfs_dir2_dataptr_to_off(args->geo, addr)); /* - * Compare name and if it's an exact match, return the index - * and buffer. If it's the first case-insensitive match, store - * the index and buffer and continue looking for an exact match. + * Compare name and if it's a match, return the + * index and buffer. */ cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen); - if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { + if (cmp != XFS_CMP_DIFFERENT) { args->cmpresult = cmp; *bpp = bp; *entno = mid; - if (cmp == XFS_CMP_EXACT) - return 0; + return 0; } } while (++mid < be32_to_cpu(btp->count) && be32_to_cpu(blp[mid].hashval) == hash); ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); - /* - * Here, we can only be doing a lookup (not a rename or replace). - * If a case-insensitive match was found earlier, return success. - */ - if (args->cmpresult == XFS_CMP_CASE) - return 0; + ASSERT(args->cmpresult == XFS_CMP_DIFFERENT); /* * No match, release the buffer and return ENOENT. */ diff --git a/fs/xfs/libxfs/xfs_dir2_leaf.c b/fs/xfs/libxfs/xfs_dir2_leaf.c index a19174e..3d572ee 100644 --- a/fs/xfs/libxfs/xfs_dir2_leaf.c +++ b/fs/xfs/libxfs/xfs_dir2_leaf.c @@ -1226,7 +1226,6 @@ xfs_dir2_leaf_lookup_int( xfs_mount_t *mp; /* filesystem mount point */ xfs_dir2_db_t newdb; /* new data block number */ xfs_trans_t *tp; /* transaction pointer */ - xfs_dir2_db_t cidb = -1; /* case match data block no. */ enum xfs_dacmp cmp; /* name compare result */ struct xfs_dir2_leaf_entry *ents; struct xfs_dir3_icleaf_hdr leafhdr; @@ -1290,46 +1289,22 @@ xfs_dir2_leaf_lookup_int( be32_to_cpu(lep->address))); /* * Compare name and if it's an exact match, return the index - * and buffer. If it's the first case-insensitive match, store - * the index and buffer and continue looking for an exact match. + * and buffer */ cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen); - if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { + if (cmp != XFS_CMP_DIFFERENT) { args->cmpresult = cmp; *indexp = index; - /* case exact match: return the current buffer. */ - if (cmp == XFS_CMP_EXACT) { - *dbpp = dbp; - return 0; - } - cidb = curdb; + *dbpp = dbp; + return 0; } } ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); - /* - * Here, we can only be doing a lookup (not a rename or remove). - * If a case-insensitive match was found earlier, re-read the - * appropriate data block if required and return it. - */ - if (args->cmpresult == XFS_CMP_CASE) { - ASSERT(cidb != -1); - if (cidb != curdb) { - xfs_trans_brelse(tp, dbp); - error = xfs_dir3_data_read(tp, dp, - xfs_dir2_db_to_da(args->geo, cidb), - -1, &dbp); - if (error) { - xfs_trans_brelse(tp, lbp); - return error; - } - } - *dbpp = dbp; - return 0; - } + ASSERT(args->cmpresult == XFS_CMP_DIFFERENT); + /* * No match found, return -ENOENT. */ - ASSERT(cidb == -1); if (dbp) xfs_trans_brelse(tp, dbp); xfs_trans_brelse(tp, lbp); diff --git a/fs/xfs/libxfs/xfs_dir2_node.c b/fs/xfs/libxfs/xfs_dir2_node.c index 2ae6ac2..1778c40 100644 --- a/fs/xfs/libxfs/xfs_dir2_node.c +++ b/fs/xfs/libxfs/xfs_dir2_node.c @@ -679,6 +679,7 @@ xfs_dir2_leafn_lookup_for_entry( xfs_dir2_data_entry_t *dep; /* data block entry */ xfs_inode_t *dp; /* incore directory inode */ int error; /* error return value */ + int di = -1; /* data entry index */ int index; /* leaf entry index */ xfs_dir2_leaf_t *leaf; /* leaf structure */ xfs_dir2_leaf_entry_t *lep; /* leaf entry */ @@ -709,6 +710,7 @@ xfs_dir2_leafn_lookup_for_entry( if (state->extravalid) { curbp = state->extrablk.bp; curdb = state->extrablk.blkno; + di = state->extrablk.index; } /* * Loop over leaf entries with the right hash value. @@ -734,28 +736,20 @@ xfs_dir2_leafn_lookup_for_entry( */ if (newdb != curdb) { /* - * If we had a block before that we aren't saving - * for a CI name, drop it + * If we had a block, drop it */ - if (curbp && (args->cmpresult == XFS_CMP_DIFFERENT || - curdb != state->extrablk.blkno)) + if (curbp) { xfs_trans_brelse(tp, curbp); + di = -1; + } /* - * If needing the block that is saved with a CI match, - * use it otherwise read in the new data block. + * Read in the new data block. */ - if (args->cmpresult != XFS_CMP_DIFFERENT && - newdb == state->extrablk.blkno) { - ASSERT(state->extravalid); - curbp = state->extrablk.bp; - } else { - error = xfs_dir3_data_read(tp, dp, - xfs_dir2_db_to_da(args->geo, - newdb), + error = xfs_dir3_data_read(tp, dp, + xfs_dir2_db_to_da(args->geo, newdb), -1, &curbp); - if (error) - return error; - } + if (error) + return error; xfs_dir3_data_check(dp, curbp); curdb = newdb; } @@ -766,53 +760,40 @@ xfs_dir2_leafn_lookup_for_entry( xfs_dir2_dataptr_to_off(args->geo, be32_to_cpu(lep->address))); /* - * Compare the entry and if it's an exact match, return - * EEXIST immediately. If it's the first case-insensitive - * match, store the block & inode number and continue looking. + * Compare the entry and if it's a match, return + * EEXIST immediately. */ cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen); - if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { - /* If there is a CI match block, drop it */ - if (args->cmpresult != XFS_CMP_DIFFERENT && - curdb != state->extrablk.blkno) - xfs_trans_brelse(tp, state->extrablk.bp); + if (cmp != XFS_CMP_DIFFERENT) { args->cmpresult = cmp; args->inumber = be64_to_cpu(dep->inumber); args->filetype = dp->d_ops->data_get_ftype(dep); - *indexp = index; - state->extravalid = 1; - state->extrablk.bp = curbp; - state->extrablk.blkno = curdb; - state->extrablk.index = (int)((char *)dep - - (char *)curbp->b_addr); - state->extrablk.magic = XFS_DIR2_DATA_MAGIC; curbp->b_ops = &xfs_dir3_data_buf_ops; xfs_trans_buf_set_type(tp, curbp, XFS_BLFT_DIR_DATA_BUF); - if (cmp == XFS_CMP_EXACT) - return -EEXIST; + di = (int)((char *)dep - (char *)curbp->b_addr); + error = -EEXIST; + goto out; + } } + /* Didn't find a match */ + error = -ENOENT; ASSERT(index == leafhdr.count || (args->op_flags & XFS_DA_OP_OKNOENT)); +out: if (curbp) { - if (args->cmpresult == XFS_CMP_DIFFERENT) { - /* Giving back last used data block. */ - state->extravalid = 1; - state->extrablk.bp = curbp; - state->extrablk.index = -1; - state->extrablk.blkno = curdb; - state->extrablk.magic = XFS_DIR2_DATA_MAGIC; - curbp->b_ops = &xfs_dir3_data_buf_ops; - xfs_trans_buf_set_type(tp, curbp, XFS_BLFT_DIR_DATA_BUF); - } else { - /* If the curbp is not the CI match block, drop it */ - if (state->extrablk.bp != curbp) - xfs_trans_brelse(tp, curbp); - } + /* Giving back last used data block. */ + state->extravalid = 1; + state->extrablk.bp = curbp; + state->extrablk.index = di; + state->extrablk.blkno = curdb; + state->extrablk.magic = XFS_DIR2_DATA_MAGIC; + curbp->b_ops = &xfs_dir3_data_buf_ops; + xfs_trans_buf_set_type(tp, curbp, XFS_BLFT_DIR_DATA_BUF); } else { state->extravalid = 0; } *indexp = index; - return -ENOENT; + return error; } /* diff --git a/fs/xfs/libxfs/xfs_dir2_sf.c b/fs/xfs/libxfs/xfs_dir2_sf.c index 5079e05..e69fdb7 100644 --- a/fs/xfs/libxfs/xfs_dir2_sf.c +++ b/fs/xfs/libxfs/xfs_dir2_sf.c @@ -757,19 +757,19 @@ xfs_dir2_sf_lookup( for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count; i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep)) { /* - * Compare name and if it's an exact match, return the inode - * number. If it's the first case-insensitive match, store the - * inode number and continue looking for an exact match. + * Compare name and if it's a match, return the inode + * number. */ cmp = dp->i_mount->m_dirnameops->compname(args, sfep->name, sfep->namelen); - if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { + if (cmp != XFS_CMP_DIFFERENT) { args->cmpresult = cmp; args->inumber = dp->d_ops->sf_get_ino(sfp, sfep); args->filetype = dp->d_ops->sf_get_ftype(sfep); if (cmp == XFS_CMP_EXACT) return -EEXIST; ci_sfep = sfep; + break; } } ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:09:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id A241A7F37 for ; Thu, 18 Sep 2014 15:09:13 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id 87D998F8035; Thu, 18 Sep 2014 13:09:10 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 4A3164266DC; Thu, 18 Sep 2014 15:09:10 -0500 (CDT) Date: Thu, 18 Sep 2014 15:09:10 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 02/10] xfs: rename XFS_CMP_CASE to XFS_CMP_MATCH Message-ID: <20140918200910.GD4482@sgi.com> References: <20140918195650.GI19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918195650.GI19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Rename XFS_CMP_CASE to XFS_CMP_MATCH. With unicode filenames and normalization, different strings will match on other criteria than case insensitivity. Signed-off-by: Olaf Weber --- fs/xfs/libxfs/xfs_da_btree.h | 2 +- fs/xfs/libxfs/xfs_dir2.c | 9 ++++++--- fs/xfs/libxfs/xfs_dir2_node.c | 2 +- 3 files changed, 8 insertions(+), 5 deletions(-) diff --git a/fs/xfs/libxfs/xfs_da_btree.h b/fs/xfs/libxfs/xfs_da_btree.h index 6e153e3..9ebcc23 100644 --- a/fs/xfs/libxfs/xfs_da_btree.h +++ b/fs/xfs/libxfs/xfs_da_btree.h @@ -52,7 +52,7 @@ struct xfs_da_geometry { enum xfs_dacmp { XFS_CMP_DIFFERENT, /* names are completely different */ XFS_CMP_EXACT, /* names are exactly the same */ - XFS_CMP_CASE /* names are same but differ in case */ + XFS_CMP_MATCH /* names are same but differ in encoding */ }; /* diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c index 6cef221..32e769b 100644 --- a/fs/xfs/libxfs/xfs_dir2.c +++ b/fs/xfs/libxfs/xfs_dir2.c @@ -74,7 +74,7 @@ xfs_ascii_ci_compname( continue; if (tolower(args->name[i]) != tolower(name[i])) return XFS_CMP_DIFFERENT; - result = XFS_CMP_CASE; + result = XFS_CMP_MATCH; } return result; @@ -315,8 +315,11 @@ xfs_dir_cilookup_result( { if (args->cmpresult == XFS_CMP_DIFFERENT) return -ENOENT; - if (args->cmpresult != XFS_CMP_CASE || - !(args->op_flags & XFS_DA_OP_CILOOKUP)) + if (args->cmpresult == XFS_CMP_EXACT) + return -EEXIST; + ASSERT(args->cmpresult == XFS_CMP_MATCH); + /* Only dup the found name if XFS_DA_OP_CILOOKUP is set. */ + if (!(args->op_flags & XFS_DA_OP_CILOOKUP)) return -EEXIST; args->value = kmem_alloc(len, KM_NOFS | KM_MAYFAIL); diff --git a/fs/xfs/libxfs/xfs_dir2_node.c b/fs/xfs/libxfs/xfs_dir2_node.c index 1778c40..9d46e8d 100644 --- a/fs/xfs/libxfs/xfs_dir2_node.c +++ b/fs/xfs/libxfs/xfs_dir2_node.c @@ -2023,7 +2023,7 @@ xfs_dir2_node_lookup( error = xfs_da3_node_lookup_int(state, &rval); if (error) rval = error; - else if (rval == -ENOENT && args->cmpresult == XFS_CMP_CASE) { + else if (rval == -ENOENT && args->cmpresult == XFS_CMP_MATCH) { /* If a CI match, dup the actual name and return -EEXIST */ xfs_dir2_data_entry_t *dep; -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:09:58 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 6FF227F37 for ; Thu, 18 Sep 2014 15:09:58 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id E58A9AC003; Thu, 18 Sep 2014 13:09:57 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id A6A794266DC; Thu, 18 Sep 2014 15:09:57 -0500 (CDT) Date: Thu, 18 Sep 2014 15:09:57 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 03/13] libxfs: add xfs_nameops.normhash Message-ID: <20140918200957.GE4482@sgi.com> References: <20140918195650.GI19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918195650.GI19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Add a normhash callout to the xfs_nameops. This callout takes an xfs_da_args structure as its argument, and calculates a hash value over the name. It may in the process create a normalized form of the name, and assign that to the norm/normlen fields in the xfs_da_args structure. Changes: The pointer in kmem_free() was type converted to suppress compiler warnings. Signed-off-by: Olaf Weber --- include/xfs_da_btree.h | 5 ++++- libxfs/xfs_da_btree.c | 9 ++++++++ libxfs/xfs_dir2.c | 56 +++++++++++++++++++++++++++++++++++++++----------- 3 files changed, 57 insertions(+), 13 deletions(-) diff --git a/include/xfs_da_btree.h b/include/xfs_da_btree.h index 3d9f9dd..06b50bf 100644 --- a/include/xfs_da_btree.h +++ b/include/xfs_da_btree.h @@ -42,7 +42,9 @@ enum xfs_dacmp { */ typedef struct xfs_da_args { const __uint8_t *name; /* string (maybe not NULL terminated) */ - int namelen; /* length of string (maybe no NULL) */ + const __uint8_t *norm; /* normalized name (may be NULL) */ + int namelen; /* length of string (maybe no NULL) */ + int normlen; /* length of normalized name */ __uint8_t filetype; /* filetype of inode for directories */ __uint8_t *value; /* set of bytes (maybe contain NULLs) */ int valuelen; /* length of value */ @@ -131,6 +133,7 @@ typedef struct xfs_da_state { */ struct xfs_nameops { xfs_dahash_t (*hashname)(struct xfs_name *); + int (*normhash)(struct xfs_da_args *); enum xfs_dacmp (*compname)(struct xfs_da_args *, const unsigned char *, int); }; diff --git a/libxfs/xfs_da_btree.c b/libxfs/xfs_da_btree.c index b731b54..eb97317 100644 --- a/libxfs/xfs_da_btree.c +++ b/libxfs/xfs_da_btree.c @@ -2000,8 +2000,17 @@ xfs_default_hashname( return xfs_da_hashname(name->name, name->len); } +STATIC int +xfs_da_normhash( + struct xfs_da_args *args) +{ + args->hashval = xfs_da_hashname(args->name, args->namelen); + return 0; +} + const struct xfs_nameops xfs_default_nameops = { .hashname = xfs_default_hashname, + .normhash = xfs_da_normhash, .compname = xfs_da_compname }; diff --git a/libxfs/xfs_dir2.c b/libxfs/xfs_dir2.c index 57e98a3..e52d082 100644 --- a/libxfs/xfs_dir2.c +++ b/libxfs/xfs_dir2.c @@ -54,6 +54,21 @@ xfs_ascii_ci_hashname( return hash; } +STATIC int +xfs_ascii_ci_normhash( + struct xfs_da_args *args) +{ + xfs_dahash_t hash; + int i; + + for (i = 0, hash = 0; i < args->namelen; i++) + hash = tolower(args->name[i]) ^ rol32(hash, 7); + + args->hashval = hash; + return 0; +} + + STATIC enum xfs_dacmp xfs_ascii_ci_compname( struct xfs_da_args *args, @@ -80,6 +95,7 @@ xfs_ascii_ci_compname( static struct xfs_nameops xfs_ascii_ci_nameops = { .hashname = xfs_ascii_ci_hashname, + .normhash = xfs_ascii_ci_normhash, .compname = xfs_ascii_ci_compname, }; @@ -211,7 +227,6 @@ xfs_dir_createname( args.name = name->name; args.namelen = name->len; args.filetype = name->type; - args.hashval = dp->i_mount->m_dirnameops->hashname(name); args.inumber = inum; args.dp = dp; args.firstblock = first; @@ -220,19 +235,24 @@ xfs_dir_createname( args.whichfork = XFS_DATA_FORK; args.trans = tp; args.op_flags = XFS_DA_OP_ADDNAME | XFS_DA_OP_OKNOENT; + if ((rval = dp->i_mount->m_dirnameops->normhash(&args))) + return rval; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) rval = xfs_dir2_sf_addname(&args); else if ((rval = xfs_dir2_isblock(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_block_addname(&args); else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_leaf_addname(&args); else rval = xfs_dir2_node_addname(&args); +out_free: + if (args.norm) + kmem_free((void *)args.norm); return rval; } @@ -289,22 +309,23 @@ xfs_dir_lookup( args.name = name->name; args.namelen = name->len; args.filetype = name->type; - args.hashval = dp->i_mount->m_dirnameops->hashname(name); args.dp = dp; args.whichfork = XFS_DATA_FORK; args.trans = tp; args.op_flags = XFS_DA_OP_OKNOENT; if (ci_name) args.op_flags |= XFS_DA_OP_CILOOKUP; + if ((rval = dp->i_mount->m_dirnameops->normhash(&args))) + return rval; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) rval = xfs_dir2_sf_lookup(&args); else if ((rval = xfs_dir2_isblock(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_block_lookup(&args); else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_leaf_lookup(&args); else @@ -318,6 +339,9 @@ xfs_dir_lookup( ci_name->len = args.valuelen; } } +out_free: + if (args.norm) + kmem_free((void *)args.norm); return rval; } @@ -345,7 +369,6 @@ xfs_dir_removename( args.name = name->name; args.namelen = name->len; args.filetype = name->type; - args.hashval = dp->i_mount->m_dirnameops->hashname(name); args.inumber = ino; args.dp = dp; args.firstblock = first; @@ -353,19 +376,24 @@ xfs_dir_removename( args.total = total; args.whichfork = XFS_DATA_FORK; args.trans = tp; + if ((rval = dp->i_mount->m_dirnameops->normhash(&args))) + return rval; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) rval = xfs_dir2_sf_removename(&args); else if ((rval = xfs_dir2_isblock(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_block_removename(&args); else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_leaf_removename(&args); else rval = xfs_dir2_node_removename(&args); +out_free: + if (args.norm) + kmem_free((void *)args.norm); return rval; } @@ -395,7 +423,6 @@ xfs_dir_replace( args.name = name->name; args.namelen = name->len; args.filetype = name->type; - args.hashval = dp->i_mount->m_dirnameops->hashname(name); args.inumber = inum; args.dp = dp; args.firstblock = first; @@ -403,19 +430,24 @@ xfs_dir_replace( args.total = total; args.whichfork = XFS_DATA_FORK; args.trans = tp; + if ((rval = dp->i_mount->m_dirnameops->normhash(&args))) + return rval; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) rval = xfs_dir2_sf_replace(&args); else if ((rval = xfs_dir2_isblock(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_block_replace(&args); else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_leaf_replace(&args); else rval = xfs_dir2_node_replace(&args); +out_free: + if (args.norm) + kmem_free((void *)args.norm); return rval; } -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:10:41 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 0BBC87F37 for ; Thu, 18 Sep 2014 15:10:41 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id 7EFEBAC002; Thu, 18 Sep 2014 13:10:40 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 2BE9F4266DC; Thu, 18 Sep 2014 15:10:40 -0500 (CDT) Date: Thu, 18 Sep 2014 15:10:40 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 04/10] xfs: change interface of xfs_nameops.normhash Message-ID: <20140918201040.GF4482@sgi.com> References: <20140918195650.GI19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918195650.GI19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber With the introduction of the xfs_nameops.normhash callout, all uses of the hashname callout now occur in places where an xfs_name structure must be explicitly created just to match the parameter passing convention of this callout. Change the arguments to a const unsigned char * and int instead. Signed-off-by: Olaf Weber --- fs/xfs/libxfs/xfs_da_btree.c | 9 +-------- fs/xfs/libxfs/xfs_da_btree.h | 2 +- fs/xfs/libxfs/xfs_dir2.c | 7 ++++--- fs/xfs/libxfs/xfs_dir2_block.c | 2 +- fs/xfs/libxfs/xfs_dir2_data.c | 3 ++- 5 files changed, 9 insertions(+), 14 deletions(-) diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c index 07a3acf..a0608ca 100644 --- a/fs/xfs/libxfs/xfs_da_btree.c +++ b/fs/xfs/libxfs/xfs_da_btree.c @@ -1983,13 +1983,6 @@ xfs_da_compname( XFS_CMP_EXACT : XFS_CMP_DIFFERENT; } -static xfs_dahash_t -xfs_default_hashname( - struct xfs_name *name) -{ - return xfs_da_hashname(name->name, name->len); -} - STATIC int xfs_da_normhash( struct xfs_da_args *args) @@ -1999,7 +1992,7 @@ xfs_da_normhash( } const struct xfs_nameops xfs_default_nameops = { - .hashname = xfs_default_hashname, + .hashname = xfs_da_hashname, .normhash = xfs_da_normhash, .compname = xfs_da_compname }; diff --git a/fs/xfs/libxfs/xfs_da_btree.h b/fs/xfs/libxfs/xfs_da_btree.h index 6cdafee..4d6b36f 100644 --- a/fs/xfs/libxfs/xfs_da_btree.h +++ b/fs/xfs/libxfs/xfs_da_btree.h @@ -151,7 +151,7 @@ typedef struct xfs_da_state { * Name ops for directory and/or attr name operations */ struct xfs_nameops { - xfs_dahash_t (*hashname)(struct xfs_name *); + xfs_dahash_t (*hashname)(const unsigned char *, int); int (*normhash)(struct xfs_da_args *); enum xfs_dacmp (*compname)(struct xfs_da_args *, const unsigned char *, int); diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c index 55733a6..84e5ca9 100644 --- a/fs/xfs/libxfs/xfs_dir2.c +++ b/fs/xfs/libxfs/xfs_dir2.c @@ -45,13 +45,14 @@ struct xfs_name xfs_name_dotdot = { (unsigned char *)"..", 2, XFS_DIR3_FT_DIR }; */ STATIC xfs_dahash_t xfs_ascii_ci_hashname( - struct xfs_name *name) + const unsigned char *name, + int len) { xfs_dahash_t hash; int i; - for (i = 0, hash = 0; i < name->len; i++) - hash = tolower(name->name[i]) ^ rol32(hash, 7); + for (i = 0, hash = 0; i < len; i++) + hash = tolower(name[i]) ^ rol32(hash, 7); return hash; } diff --git a/fs/xfs/libxfs/xfs_dir2_block.c b/fs/xfs/libxfs/xfs_dir2_block.c index 990bf0c..f93c141 100644 --- a/fs/xfs/libxfs/xfs_dir2_block.c +++ b/fs/xfs/libxfs/xfs_dir2_block.c @@ -1231,7 +1231,7 @@ xfs_dir2_sf_to_block( name.name = sfep->name; name.len = sfep->namelen; blp[2 + i].hashval = cpu_to_be32(mp->m_dirnameops-> - hashname(&name)); + hashname(sfep->name, sfep->namelen)); blp[2 + i].address = cpu_to_be32(xfs_dir2_byte_to_dataptr( (char *)dep - (char *)hdr)); offset = (int)((char *)(tagp + 1) - (char *)hdr); diff --git a/fs/xfs/libxfs/xfs_dir2_data.c b/fs/xfs/libxfs/xfs_dir2_data.c index fdd803f..28c35cf 100644 --- a/fs/xfs/libxfs/xfs_dir2_data.c +++ b/fs/xfs/libxfs/xfs_dir2_data.c @@ -179,7 +179,8 @@ __xfs_dir3_data_check( ((char *)dep - (char *)hdr)); name.name = dep->name; name.len = dep->namelen; - hash = mp->m_dirnameops->hashname(&name); + hash = mp->m_dirnameops->hashname(dep->name, + dep->namelen); for (i = 0; i < be32_to_cpu(btp->count); i++) { if (be32_to_cpu(lep[i].address) == addr && be32_to_cpu(lep[i].hashval) == hash) -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:11:28 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 245087F37 for ; Thu, 18 Sep 2014 15:11:28 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id 83510AC002; Thu, 18 Sep 2014 13:11:27 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 35F9D4266DC; Thu, 18 Sep 2014 15:11:27 -0500 (CDT) Date: Thu, 18 Sep 2014 15:11:27 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 05/10] xfs: add a superblock feature bit to indicate UTF-8 support. Message-ID: <20140918201127.GG4482@sgi.com> References: <20140918195650.GI19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918195650.GI19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber When UTF-8 support is enabled, the xfs_dir_ci_inode_operations must be installed. Add xfs_sb_version_hasci(), which tests both the borgbit and the utf8bit, and returns true if at least one of them is set. Replace calls to xfs_sb_version_hasasciici() as needed. Signed-off-by: Olaf Weber --- fs/xfs/libxfs/xfs_sb.h | 24 +++++++++++++++++++++++- fs/xfs/xfs_fs.h | 1 + fs/xfs/xfs_fsops.c | 4 +++- fs/xfs/xfs_iops.c | 4 ++-- 4 files changed, 29 insertions(+), 4 deletions(-) diff --git a/fs/xfs/libxfs/xfs_sb.h b/fs/xfs/libxfs/xfs_sb.h index 2e73970..525eacb 100644 --- a/fs/xfs/libxfs/xfs_sb.h +++ b/fs/xfs/libxfs/xfs_sb.h @@ -70,6 +70,7 @@ struct xfs_trans; #define XFS_SB_VERSION2_RESERVED4BIT 0x00000004 #define XFS_SB_VERSION2_ATTR2BIT 0x00000008 /* Inline attr rework */ #define XFS_SB_VERSION2_PARENTBIT 0x00000010 /* parent pointers */ +#define XFS_SB_VERSION2_UTF8BIT 0x00000020 /* utf8 names */ #define XFS_SB_VERSION2_PROJID32BIT 0x00000080 /* 32 bit project id */ #define XFS_SB_VERSION2_CRCBIT 0x00000100 /* metadata CRCs */ #define XFS_SB_VERSION2_FTYPE 0x00000200 /* inode type in dir */ @@ -77,6 +78,7 @@ struct xfs_trans; #define XFS_SB_VERSION2_OKBITS \ (XFS_SB_VERSION2_LAZYSBCOUNTBIT | \ XFS_SB_VERSION2_ATTR2BIT | \ + XFS_SB_VERSION2_UTF8BIT | \ XFS_SB_VERSION2_PROJID32BIT | \ XFS_SB_VERSION2_FTYPE) @@ -509,8 +511,10 @@ xfs_sb_has_ro_compat_feature( } #define XFS_SB_FEAT_INCOMPAT_FTYPE (1 << 0) /* filetype in dirent */ +#define XFS_SB_FEAT_INCOMPAT_UTF8 (1 << 1) /* utf-8 name support */ #define XFS_SB_FEAT_INCOMPAT_ALL \ - (XFS_SB_FEAT_INCOMPAT_FTYPE) + (XFS_SB_FEAT_INCOMPAT_FTYPE | \ + XFS_SB_FEAT_INCOMPAT_UTF8) #define XFS_SB_FEAT_INCOMPAT_UNKNOWN ~XFS_SB_FEAT_INCOMPAT_ALL static inline bool @@ -558,6 +562,24 @@ static inline int xfs_sb_version_hasfinobt(xfs_sb_t *sbp) (sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_FINOBT); } +static inline int xfs_sb_version_hasutf8(xfs_sb_t *sbp) +{ + return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 && + xfs_sb_has_incompat_feature(sbp, XFS_SB_FEAT_INCOMPAT_UTF8)) || + (xfs_sb_version_hasmorebits(sbp) && + (sbp->sb_features2 & XFS_SB_VERSION2_UTF8BIT)); +} + +/* + * Special case: there are a number of places where we need to test + * both the borgbit and the utf8bit, and take the same action if + * either of those is set. + */ +static inline int xfs_sb_version_hasci(xfs_sb_t *sbp) +{ + return xfs_sb_version_hasasciici(sbp) || xfs_sb_version_hasutf8(sbp); +} + /* * end of superblock version macros */ diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h index 18dc721..e845d75 100644 --- a/fs/xfs/xfs_fs.h +++ b/fs/xfs/xfs_fs.h @@ -239,6 +239,7 @@ typedef struct xfs_fsop_resblks { #define XFS_FSOP_GEOM_FLAGS_V5SB 0x8000 /* version 5 superblock */ #define XFS_FSOP_GEOM_FLAGS_FTYPE 0x10000 /* inode directory types */ #define XFS_FSOP_GEOM_FLAGS_FINOBT 0x20000 /* free inode btree */ +#define XFS_FSOP_GEOM_FLAGS_UTF8 0x40000 /* utf8 filenames */ /* * Minimum and maximum sizes need for growth checks. diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index f91de1e..1a83eef 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -103,7 +103,9 @@ xfs_fs_geometry( (xfs_sb_version_hasftype(&mp->m_sb) ? XFS_FSOP_GEOM_FLAGS_FTYPE : 0) | (xfs_sb_version_hasfinobt(&mp->m_sb) ? - XFS_FSOP_GEOM_FLAGS_FINOBT : 0); + XFS_FSOP_GEOM_FLAGS_FINOBT : 0) | + (xfs_sb_version_hasutf8(&mp->m_sb) ? + XFS_FSOP_GEOM_FLAGS_UTF8 : 0); geo->logsectsize = xfs_sb_version_hassector(&mp->m_sb) ? mp->m_sb.sb_logsectsize : BBSIZE; geo->rtsectsize = mp->m_sb.sb_blocksize; diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index 7212949..cea3d64 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -335,9 +335,9 @@ xfs_vn_unlink( /* * With unlink, the VFS makes the dentry "negative": no inode, * but still hashed. This is incompatible with case-insensitive - * mode, so invalidate (unhash) the dentry in CI-mode. + * or utf8 mode, so invalidate (unhash) the dentry in CI-mode. */ - if (xfs_sb_version_hasasciici(&XFS_M(dir->i_sb)->m_sb)) + if (xfs_sb_version_hasci(&XFS_M(dir->i_sb)->m_sb)) d_invalidate(dentry); return 0; } -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:13:36 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 4E2797F37 for ; Thu, 18 Sep 2014 15:13:36 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay2.corp.sgi.com (Postfix) with ESMTP id 1D8B6304032; Thu, 18 Sep 2014 13:13:33 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id DC61C4266DC; Thu, 18 Sep 2014 15:13:32 -0500 (CDT) Date: Thu, 18 Sep 2014 15:13:32 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 03/10] xfs: add xfs_nameops.normhash Message-ID: <20140918201332.GH4482@sgi.com> References: <20140918195650.GI19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918195650.GI19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Add a normhash callout to the xfs_nameops. This callout takes an xfs_da_args structure as its argument, and calculates a hash value over the name. It may in the process create a normalized form of the name, and assign that to the norm/normlen fields in the xfs_da_args structure. Signed-off-by: Olaf Weber --- fs/xfs/libxfs/xfs_da_btree.c | 9 +++++++++ fs/xfs/libxfs/xfs_da_btree.h | 3 +++ fs/xfs/libxfs/xfs_dir2.c | 42 +++++++++++++++++++++++++++++++++++++----- 3 files changed, 49 insertions(+), 5 deletions(-) diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c index 2c42ae2..07a3acf 100644 --- a/fs/xfs/libxfs/xfs_da_btree.c +++ b/fs/xfs/libxfs/xfs_da_btree.c @@ -1990,8 +1990,17 @@ xfs_default_hashname( return xfs_da_hashname(name->name, name->len); } +STATIC int +xfs_da_normhash( + struct xfs_da_args *args) +{ + args->hashval = xfs_da_hashname(args->name, args->namelen); + return 0; +} + const struct xfs_nameops xfs_default_nameops = { .hashname = xfs_default_hashname, + .normhash = xfs_da_normhash, .compname = xfs_da_compname }; diff --git a/fs/xfs/libxfs/xfs_da_btree.h b/fs/xfs/libxfs/xfs_da_btree.h index 9ebcc23..6cdafee 100644 --- a/fs/xfs/libxfs/xfs_da_btree.h +++ b/fs/xfs/libxfs/xfs_da_btree.h @@ -61,7 +61,9 @@ enum xfs_dacmp { typedef struct xfs_da_args { struct xfs_da_geometry *geo; /* da block geometry */ const __uint8_t *name; /* string (maybe not NULL terminated) */ + const __uint8_t *norm; /* normalized name (may be NULL) */ int namelen; /* length of string (maybe no NULL) */ + int normlen; /* length of normalized name */ __uint8_t filetype; /* filetype of inode for directories */ __uint8_t *value; /* set of bytes (maybe contain NULLs) */ int valuelen; /* length of value */ @@ -150,6 +152,7 @@ typedef struct xfs_da_state { */ struct xfs_nameops { xfs_dahash_t (*hashname)(struct xfs_name *); + int (*normhash)(struct xfs_da_args *); enum xfs_dacmp (*compname)(struct xfs_da_args *, const unsigned char *, int); }; diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c index 32e769b..55733a6 100644 --- a/fs/xfs/libxfs/xfs_dir2.c +++ b/fs/xfs/libxfs/xfs_dir2.c @@ -56,6 +56,21 @@ xfs_ascii_ci_hashname( return hash; } +STATIC int +xfs_ascii_ci_normhash( + struct xfs_da_args *args) +{ + xfs_dahash_t hash; + int i; + + for (i = 0, hash = 0; i < args->namelen; i++) + hash = tolower(args->name[i]) ^ rol32(hash, 7); + + args->hashval = hash; + return 0; +} + + STATIC enum xfs_dacmp xfs_ascii_ci_compname( struct xfs_da_args *args, @@ -82,6 +97,7 @@ xfs_ascii_ci_compname( static struct xfs_nameops xfs_ascii_ci_nameops = { .hashname = xfs_ascii_ci_hashname, + .normhash = xfs_ascii_ci_normhash, .compname = xfs_ascii_ci_compname, }; @@ -267,7 +283,6 @@ xfs_dir_createname( args->name = name->name; args->namelen = name->len; args->filetype = name->type; - args->hashval = dp->i_mount->m_dirnameops->hashname(name); args->inumber = inum; args->dp = dp; args->firstblock = first; @@ -276,6 +291,8 @@ xfs_dir_createname( args->whichfork = XFS_DATA_FORK; args->trans = tp; args->op_flags = XFS_DA_OP_ADDNAME | XFS_DA_OP_OKNOENT; + if ((rval = dp->i_mount->m_dirnameops->normhash(args))) + goto out_free; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { rval = xfs_dir2_sf_addname(args); @@ -299,6 +316,8 @@ xfs_dir_createname( rval = xfs_dir2_node_addname(args); out_free: + if (args->norm) + kmem_free(args->norm); kmem_free(args); return rval; } @@ -365,13 +384,14 @@ xfs_dir_lookup( args->name = name->name; args->namelen = name->len; args->filetype = name->type; - args->hashval = dp->i_mount->m_dirnameops->hashname(name); args->dp = dp; args->whichfork = XFS_DATA_FORK; args->trans = tp; args->op_flags = XFS_DA_OP_OKNOENT; if (ci_name) args->op_flags |= XFS_DA_OP_CILOOKUP; + if ((rval = dp->i_mount->m_dirnameops->normhash(args))) + goto out_free; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { rval = xfs_dir2_sf_lookup(args); @@ -405,6 +425,9 @@ out_check_rval: } } out_free: + if (args->norm) + kmem_free(args->norm); + kmem_free(args); return rval; } @@ -437,7 +460,6 @@ xfs_dir_removename( args->name = name->name; args->namelen = name->len; args->filetype = name->type; - args->hashval = dp->i_mount->m_dirnameops->hashname(name); args->inumber = ino; args->dp = dp; args->firstblock = first; @@ -445,6 +467,8 @@ xfs_dir_removename( args->total = total; args->whichfork = XFS_DATA_FORK; args->trans = tp; + if ((rval = dp->i_mount->m_dirnameops->normhash(args))) + goto out_free; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { rval = xfs_dir2_sf_removename(args); @@ -467,6 +491,8 @@ xfs_dir_removename( else rval = xfs_dir2_node_removename(args); out_free: + if (args->norm) + kmem_free(args->norm); kmem_free(args); return rval; } @@ -502,7 +528,6 @@ xfs_dir_replace( args->name = name->name; args->namelen = name->len; args->filetype = name->type; - args->hashval = dp->i_mount->m_dirnameops->hashname(name); args->inumber = inum; args->dp = dp; args->firstblock = first; @@ -510,6 +535,8 @@ xfs_dir_replace( args->total = total; args->whichfork = XFS_DATA_FORK; args->trans = tp; + if ((rval = dp->i_mount->m_dirnameops->normhash(args))) + goto out_free; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { rval = xfs_dir2_sf_replace(args); @@ -532,6 +559,8 @@ xfs_dir_replace( else rval = xfs_dir2_node_replace(args); out_free: + if (args->norm) + kmem_free(args->norm); kmem_free(args); return rval; } @@ -564,12 +593,13 @@ xfs_dir_canenter( args->name = name->name; args->namelen = name->len; args->filetype = name->type; - args->hashval = dp->i_mount->m_dirnameops->hashname(name); args->dp = dp; args->whichfork = XFS_DATA_FORK; args->trans = tp; args->op_flags = XFS_DA_OP_JUSTCHECK | XFS_DA_OP_ADDNAME | XFS_DA_OP_OKNOENT; + if ((rval = dp->i_mount->m_dirnameops->normhash(args))) + goto out_free; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { rval = xfs_dir2_sf_addname(args); @@ -592,6 +622,8 @@ xfs_dir_canenter( else rval = xfs_dir2_node_addname(args); out_free: + if (args->norm) + kmem_free(args->norm); kmem_free(args); return rval; } -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:14:41 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 2225F7F37 for ; Thu, 18 Sep 2014 15:14:41 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay2.corp.sgi.com (Postfix) with ESMTP id 05FFB304039; Thu, 18 Sep 2014 13:14:41 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id CACEF4266DC; Thu, 18 Sep 2014 15:14:40 -0500 (CDT) Date: Thu, 18 Sep 2014 15:14:40 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 06/10] xfs: add unicode character database files Message-ID: <20140918201440.GI4482@sgi.com> References: <20140918195650.GI19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918195650.GI19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Add files from the Unicode Character Database, version 7.0.0, to the source. A helper program that generates a trie used for normalization from these files is part of a separate commit. Signed-off-by: Olaf Weber --- [v2: Removed large unicode files prior to posting. Get them as below. -bpm] [v3: Moved files to ucd8norm directory. -bpm] cd fs/xfs/utf8norm/ucd wget http://www.unicode.org/Public/7.0.0/ucd/CaseFolding.txt wget http://www.unicode.org/Public/7.0.0/ucd/DerivedAge.txt wget http://www.unicode.org/Public/7.0.0/ucd/extracted/DerivedCombiningClass.txt wget http://www.unicode.org/Public/7.0.0/ucd/DerivedCoreProperties.txt wget http://www.unicode.org/Public/7.0.0/ucd/NormalizationCorrections.txt wget http://www.unicode.org/Public/7.0.0/ucd/NormalizationTest.txt wget http://www.unicode.org/Public/7.0.0/ucd/UnicodeData.txt for e in *.txt do base=`basename $e .txt` mv $e $base-7.0.0.txt done --- fs/xfs/utf8norm/ucd/README | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 fs/xfs/utf8norm/ucd/README diff --git a/fs/xfs/utf8norm/ucd/README b/fs/xfs/utf8norm/ucd/README new file mode 100644 index 0000000..d713e66 --- /dev/null +++ b/fs/xfs/utf8norm/ucd/README @@ -0,0 +1,33 @@ +The files in this directory are part of the Unicode Character Database +for version 7.0.0 of the Unicode standard. + +The full set of files can be found here: + + http://www.unicode.org/Public/7.0.0/ucd/ + +The latest released version of the UCD can be found here: + + http://www.unicode.org/Public/UCD/latest/ + +The files in this directory are identical, except that they have been +renamed with a suffix indicating the unicode version. + +Individual source links: + + http://www.unicode.org/Public/7.0.0/ucd/CaseFolding.txt + http://www.unicode.org/Public/7.0.0/ucd/DerivedAge.txt + http://www.unicode.org/Public/7.0.0/ucd/extracted/DerivedCombiningClass.txt + http://www.unicode.org/Public/7.0.0/ucd/DerivedCoreProperties.txt + http://www.unicode.org/Public/7.0.0/ucd/NormalizationCorrections.txt + http://www.unicode.org/Public/7.0.0/ucd/NormalizationTest.txt + http://www.unicode.org/Public/7.0.0/ucd/UnicodeData.txt + +md5sums + + 9a92b2bfe56c6719def926bab524fefd CaseFolding-7.0.0.txt + 07b8b1027eb824cf0835314e94f23d2e DerivedAge-7.0.0.txt + 90c3340b16821e2f2153acdbe6fc6180 DerivedCombiningClass-7.0.0.txt + c41c0601f808116f623de47110ed4f93 DerivedCoreProperties-7.0.0.txt + 522720ddfc150d8e63a2518634829bce NormalizationCorrections-7.0.0.txt + 1f35175eba4a2ad795db489f789ae352 NormalizationTest-7.0.0.txt + c8355655731d75e6a3de8c20d7e601ba UnicodeData-7.0.0.txt -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:15:20 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD, T_FILL_THIS_FORM_SHORT autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 1B0BC7F37 for ; Thu, 18 Sep 2014 15:15:20 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay2.corp.sgi.com (Postfix) with ESMTP id BFFA5304032; Thu, 18 Sep 2014 13:15:19 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 103D94266DC; Thu, 18 Sep 2014 15:15:19 -0500 (CDT) Date: Thu, 18 Sep 2014 15:15:19 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 07/10] xfs: add trie generator and supporting code for UTF-8. Message-ID: <20140918201518.GJ4482@sgi.com> References: <20140918195650.GI19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918195650.GI19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber mkutf8data.c is the source for a program that generates utf8data.h, which contains the trie that utf8norm.c uses. The trie is generated from the Unicode 7.0.0 data files. The format of the utf8data[] table is described in utf8norm.c. Supporting functions for UTF-8 normalization are in utf8norm.c with the header utf8norm.h. Two normalization forms are supported: nfkdi and nfkdicf. nfkdi: - Apply unicode normalization form NFKD. - Remove any Default_Ignorable_Code_Point. nfkdicf: - Apply unicode normalization form NFKD. - Remove any Default_Ignorable_Code_Point. - Apply a full casefold (C + F). For the purposes of the code, a string is valid UTF-8 if: - The values encoded are 0x1..0x10FFFF. - The surrogate codepoints 0xD800..0xDFFFF are not encoded. - The shortest possible encoding is used for all values. The supporting functions work on null-terminated strings (utf8 prefix) and on length-limited strings (utf8n prefix). Signed-off-by: Olaf Weber --- [v2: the trie is now separated into utf8norm.ko; utf8version is now a function and exported; introduced CONFIG_XFS_UTF8. -bpm] --- fs/xfs/Kconfig | 8 + fs/xfs/Makefile | 2 +- fs/xfs/utf8norm/Makefile | 37 + fs/xfs/utf8norm/mkutf8data.c | 3239 ++++++++++++++++++++++++++++++++++++++++++ fs/xfs/utf8norm/utf8norm.c | 649 +++++++++ fs/xfs/utf8norm/utf8norm.h | 116 ++ 6 files changed, 4050 insertions(+), 1 deletion(-) create mode 100644 fs/xfs/utf8norm/Makefile create mode 100644 fs/xfs/utf8norm/mkutf8data.c create mode 100644 fs/xfs/utf8norm/utf8norm.c create mode 100644 fs/xfs/utf8norm/utf8norm.h diff --git a/fs/xfs/Kconfig b/fs/xfs/Kconfig index 5d47b4d..a847857 100644 --- a/fs/xfs/Kconfig +++ b/fs/xfs/Kconfig @@ -95,3 +95,11 @@ config XFS_DEBUG not useful unless you are debugging a particular problem. Say N unless you are an XFS developer, or you play one on TV. + +config XFS_UTF8 + bool "XFS UTF-8 support" + depends on XFS_FS + help + Say Y here to enable utf8 normalization support in XFS. You + will be able to mount and use filesystems created with the + utf8 mkfs.xfs option. diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile index d617999..6d000d3 100644 --- a/fs/xfs/Makefile +++ b/fs/xfs/Makefile @@ -21,7 +21,7 @@ ccflags-y += -I$(src)/libxfs ccflags-$(CONFIG_XFS_DEBUG) += -g -obj-$(CONFIG_XFS_FS) += xfs.o +obj-$(CONFIG_XFS_FS) += xfs.o utf8norm/ # this one should be compiled first, as the tracing macros can easily blow up xfs-y += xfs_trace.o diff --git a/fs/xfs/utf8norm/Makefile b/fs/xfs/utf8norm/Makefile new file mode 100644 index 0000000..f83f9b9 --- /dev/null +++ b/fs/xfs/utf8norm/Makefile @@ -0,0 +1,37 @@ +# +# Copyright (c) 2014 SGI. +# All rights reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +# + +ifeq ($(CONFIG_XFS_UTF8),y) +obj-m += utf8norm.o +endif + +hostprogs-y := mkutf8data +$(obj)/utf8norm.o: $(obj)/utf8data.h +$(obj)/utf8data.h: $(src)/ucd/*.txt +$(obj)/utf8data.h: $(obj)/mkutf8data FORCE + $(call if_changed,mkutf8data) +quiet_cmd_mkutf8data = MKUTF8DATA $@ + cmd_mkutf8data = $(obj)/mkutf8data \ + -a $(src)/ucd/DerivedAge-7.0.0.txt \ + -c $(src)/ucd/DerivedCombiningClass-7.0.0.txt \ + -p $(src)/ucd/DerivedCoreProperties-7.0.0.txt \ + -d $(src)/ucd/UnicodeData-7.0.0.txt \ + -f $(src)/ucd/CaseFolding-7.0.0.txt \ + -n $(src)/ucd/NormalizationCorrections-7.0.0.txt \ + -t $(src)/ucd/NormalizationTest-7.0.0.txt \ + -o $@ diff --git a/fs/xfs/utf8norm/mkutf8data.c b/fs/xfs/utf8norm/mkutf8data.c new file mode 100644 index 0000000..1d6ec02 --- /dev/null +++ b/fs/xfs/utf8norm/mkutf8data.c @@ -0,0 +1,3239 @@ +/* + * Copyright (c) 2014 SGI. + * 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 + */ + +/* Generator for a compact trie for unicode normalization */ + +#include +#include +#include +#include +#include +#include +#include +#include + +/* Default names of the in- and output files. */ + +#define AGE_NAME "DerivedAge.txt" +#define CCC_NAME "DerivedCombiningClass.txt" +#define PROP_NAME "DerivedCoreProperties.txt" +#define DATA_NAME "UnicodeData.txt" +#define FOLD_NAME "CaseFolding.txt" +#define NORM_NAME "NormalizationCorrections.txt" +#define TEST_NAME "NormalizationTest.txt" +#define UTF8_NAME "utf8data.h" + +const char *age_name = AGE_NAME; +const char *ccc_name = CCC_NAME; +const char *prop_name = PROP_NAME; +const char *data_name = DATA_NAME; +const char *fold_name = FOLD_NAME; +const char *norm_name = NORM_NAME; +const char *test_name = TEST_NAME; +const char *utf8_name = UTF8_NAME; + +int verbose = 0; + +/* An arbitrary line size limit on input lines. */ + +#define LINESIZE 1024 +char line[LINESIZE]; +char buf0[LINESIZE]; +char buf1[LINESIZE]; +char buf2[LINESIZE]; +char buf3[LINESIZE]; + +const char *argv0; + +/* ------------------------------------------------------------------ */ + +/* + * Unicode version numbers consist of three parts: major, minor, and a + * revision. These numbers are packed into an unsigned int to obtain + * a single version number. + * + * To save space in the generated trie, the unicode version is not + * stored directly, instead we calculate a generation number from the + * unicode versions seen in the DerivedAge file, and use that as an + * index into a table of unicode versions. + */ +#define UNICODE_MAJ_SHIFT (16) +#define UNICODE_MIN_SHIFT (8) + +#define UNICODE_MAJ_MAX ((unsigned short)-1) +#define UNICODE_MIN_MAX ((unsigned char)-1) +#define UNICODE_REV_MAX ((unsigned char)-1) + +#define UNICODE_AGE(MAJ,MIN,REV) \ + (((unsigned int)(MAJ) << UNICODE_MAJ_SHIFT) | \ + ((unsigned int)(MIN) << UNICODE_MIN_SHIFT) | \ + ((unsigned int)(REV))) + +unsigned int *ages; +int ages_count; + +unsigned int unicode_maxage; + +static int +age_valid(unsigned int major, unsigned int minor, unsigned int revision) +{ + if (major > UNICODE_MAJ_MAX) + return 0; + if (minor > UNICODE_MIN_MAX) + return 0; + if (revision > UNICODE_REV_MAX) + return 0; + return 1; +} + +/* ------------------------------------------------------------------ */ + +/* + * utf8trie_t + * + * A compact binary tree, used to decode UTF-8 characters. + * + * Internal nodes are one byte for the node itself, and up to three + * bytes for an offset into the tree. The first byte contains the + * following information: + * NEXTBYTE - flag - advance to next byte if set + * BITNUM - 3 bit field - the bit number to tested + * OFFLEN - 2 bit field - number of bytes in the offset + * if offlen == 0 (non-branching node) + * RIGHTPATH - 1 bit field - set if the following node is for the + * right-hand path (tested bit is set) + * TRIENODE - 1 bit field - set if the following node is an internal + * node, otherwise it is a leaf node + * if offlen != 0 (branching node) + * LEFTNODE - 1 bit field - set if the left-hand node is internal + * RIGHTNODE - 1 bit field - set if the right-hand node is internal + * + * Due to the way utf8 works, there cannot be branching nodes with + * NEXTBYTE set, and moreover those nodes always have a righthand + * descendant. + */ +typedef unsigned char utf8trie_t; +#define BITNUM 0x07 +#define NEXTBYTE 0x08 +#define OFFLEN 0x30 +#define OFFLEN_SHIFT 4 +#define RIGHTPATH 0x40 +#define TRIENODE 0x80 +#define RIGHTNODE 0x40 +#define LEFTNODE 0x80 + +/* + * utf8leaf_t + * + * The leaves of the trie are embedded in the trie, and so the same + * underlying datatype, unsigned char. + * + * leaf[0]: The unicode version, stored as a generation number that is + * an index into utf8agetab[]. With this we can filter code + * points based on the unicode version in which they were + * defined. The CCC of a non-defined code point is 0. + * leaf[1]: Canonical Combining Class. During normalization, we need + * to do a stable sort into ascending order of all characters + * with a non-zero CCC that occur between two characters with + * a CCC of 0, or at the begin or end of a string. + * The unicode standard guarantees that all CCC values are + * between 0 and 254 inclusive, which leaves 255 available as + * a special value. + * Code points with CCC 0 are known as stoppers. + * leaf[2]: Decomposition. If leaf[1] == 255, then leaf[2] is the + * start of a NUL-terminated string that is the decomposition + * of the character. + * The CCC of a decomposable character is the same as the CCC + * of the first character of its decomposition. + * Some characters decompose as the empty string: these are + * characters with the Default_Ignorable_Code_Point property. + * These do affect normalization, as they all have CCC 0. + * + * The decompositions in the trie have been fully expanded. + * + * Casefolding, if applicable, is also done using decompositions. + */ +typedef unsigned char utf8leaf_t; + +#define LEAF_GEN(LEAF) ((LEAF)[0]) +#define LEAF_CCC(LEAF) ((LEAF)[1]) +#define LEAF_STR(LEAF) ((const char*)((LEAF) + 2)) + +#define MAXGEN (255) + +#define MINCCC (0) +#define MAXCCC (254) +#define STOPPER (0) +#define DECOMPOSE (255) + +struct tree; +static utf8leaf_t *utf8nlookup(struct tree *, const char *, size_t); +static utf8leaf_t *utf8lookup(struct tree *, const char *); + +unsigned char *utf8data; +size_t utf8data_size; + +utf8trie_t *nfkdi; +utf8trie_t *nfkdicf; + +/* ------------------------------------------------------------------ */ + +/* + * UTF8 valid ranges. + * + * The UTF-8 encoding spreads the bits of a 32bit word over several + * bytes. This table gives the ranges that can be held and how they'd + * be represented. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000000 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000000 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * There is an additional requirement on UTF-8, in that only the + * shortest representation of a 32bit value is to be used. A decoder + * must not decode sequences that do not satisfy this requirement. + * Thus the allowed ranges have a lower bound. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000080 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000800 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00010000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00200000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x04000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * Actual unicode characters are limited to the range 0x0 - 0x10FFFF, + * 17 planes of 65536 values. This limits the sequences actually seen + * even more, to just the following. + * + * 0 - 0x7f: 0 0x7f + * 0x80 - 0x7ff: 0xc2 0x80 0xdf 0xbf + * 0x800 - 0xffff: 0xe0 0xa0 0x80 0xef 0xbf 0xbf + * 0x10000 - 0x10ffff: 0xf0 0x90 0x80 0x80 0xf4 0x8f 0xbf 0xbf + * + * Even within those ranges not all values are allowed: the surrogates + * 0xd800 - 0xdfff should never be seen. + * + * Note that the longest sequence seen with valid usage is 4 bytes, + * the same a single UTF-32 character. This makes the UTF-8 + * representation of Unicode strictly smaller than UTF-32. + * + * The shortest sequence requirement was introduced by: + * Corrigendum #1: UTF-8 Shortest Form + * It can be found here: + * http://www.unicode.org/versions/corrigendum1.html + * + */ + +#define UTF8_2_BITS 0xC0 +#define UTF8_3_BITS 0xE0 +#define UTF8_4_BITS 0xF0 +#define UTF8_N_BITS 0x80 +#define UTF8_2_MASK 0xE0 +#define UTF8_3_MASK 0xF0 +#define UTF8_4_MASK 0xF8 +#define UTF8_N_MASK 0xC0 +#define UTF8_V_MASK 0x3F +#define UTF8_V_SHIFT 6 + +static int +utf8key(unsigned int key, char keyval[]) +{ + int keylen; + + if (key < 0x80) { + keyval[0] = key; + keylen = 1; + } else if (key < 0x800) { + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_2_BITS; + keylen = 2; + } else if (key < 0x10000) { + keyval[2] = key & UTF8_V_MASK; + keyval[2] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_3_BITS; + keylen = 3; + } else if (key < 0x110000) { + keyval[3] = key & UTF8_V_MASK; + keyval[3] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[2] = key & UTF8_V_MASK; + keyval[2] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_4_BITS; + keylen = 4; + } else { + printf("%#x: illegal key\n", key); + keylen = 0; + } + return keylen; +} + +static unsigned int +utf8code(const char *str) +{ + const unsigned char *s = (const unsigned char*)str; + unsigned int unichar = 0; + + if (*s < 0x80) { + unichar = *s; + } else if (*s < UTF8_3_BITS) { + unichar = *s++ & 0x1F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s & 0x3F; + } else if (*s < UTF8_4_BITS) { + unichar = *s++ & 0x0F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s++ & 0x3F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s & 0x3F; + } else { + unichar = *s++ & 0x0F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s++ & 0x3F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s++ & 0x3F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s & 0x3F; + } + return unichar; +} + +static int +utf32valid(unsigned int unichar) +{ + return unichar < 0x110000; +} + +#define NODE 1 +#define LEAF 0 + +struct tree { + void *root; + int childnode; + const char *type; + unsigned int maxage; + struct tree *next; + int (*leaf_equal)(void *, void *); + void (*leaf_print)(void *, int); + int (*leaf_mark)(void *); + int (*leaf_size)(void *); + int *(*leaf_index)(struct tree *, void *); + unsigned char *(*leaf_emit)(void *, unsigned char *); + int leafindex[0x110000]; + int index; +}; + +struct node { + int index; + int offset; + int mark; + int size; + struct node *parent; + void *left; + void *right; + unsigned char bitnum; + unsigned char nextbyte; + unsigned char leftnode; + unsigned char rightnode; + unsigned int keybits; + unsigned int keymask; +}; + +/* + * Example lookup function for a tree. + */ +static void * +lookup(struct tree *tree, const char *key) +{ + struct node *node; + void *leaf = NULL; + + node = tree->root; + while (!leaf && node) { + if (node->nextbyte) + key++; + if (*key & (1 << (node->bitnum & 7))) { + /* Right leg */ + if (node->rightnode == NODE) { + node = node->right; + } else if (node->rightnode == LEAF) { + leaf = node->right; + } else { + node = NULL; + } + } else { + /* Left leg */ + if (node->leftnode == NODE) { + node = node->left; + } else if (node->leftnode == LEAF) { + leaf = node->left; + } else { + node = NULL; + } + } + } + + return leaf; +} + +/* + * A simple non-recursive tree walker: keep track of visits to the + * left and right branches in the leftmask and rightmask. + */ +static void +tree_walk(struct tree *tree) +{ + struct node *node; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int indent = 1; + int nodes, singletons, leaves; + + nodes = singletons = leaves = 0; + + printf("%s_%x root %p\n", tree->type, tree->maxage, tree->root); + if (tree->childnode == LEAF) { + assert(tree->root); + tree->leaf_print(tree->root, indent); + leaves = 1; + } else { + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + printf("%*snode @ %p bitnum %d nextbyte %d" + " left %p right %p mask %x bits %x\n", + indent, "", node, + node->bitnum, node->nextbyte, + node->left, node->right, + node->keymask, node->keybits); + nodes += 1; + if (!(node->left && node->right)) + singletons += 1; + + while (node) { + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + tree->leaf_print(node->left, + indent+1); + leaves += 1; + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if ((rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + tree->leaf_print(node->right, + indent+1); + leaves += 1; + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + indent -= 1; + } + } + } + printf("nodes %d leaves %d singletons %d\n", + nodes, leaves, singletons); +} + +/* + * Allocate an initialize a new internal node. + */ +static struct node * +alloc_node(struct node *parent) +{ + struct node *node; + int bitnum; + + node = malloc(sizeof(*node)); + node->left = node->right = NULL; + node->parent = parent; + node->leftnode = NODE; + node->rightnode = NODE; + node->keybits = 0; + node->keymask = 0; + node->mark = 0; + node->index = 0; + node->offset = -1; + node->size = 4; + + if (node->parent) { + bitnum = parent->bitnum; + if ((bitnum & 7) == 0) { + node->bitnum = bitnum + 7 + 8; + node->nextbyte = 1; + } else { + node->bitnum = bitnum - 1; + node->nextbyte = 0; + } + } else { + node->bitnum = 7; + node->nextbyte = 0; + } + + return node; +} + +/* + * Insert a new leaf into the tree, and collapse any subtrees that are + * fully populated and end in identical leaves. A nextbyte tagged + * internal node will not be removed to preserve the tree's integrity. + * Note that due to the structure of utf8, no nextbyte tagged node + * will be a candidate for removal. + */ +static int +insert(struct tree *tree, char *key, int keylen, void *leaf) +{ + struct node *node; + struct node *parent; + void **cursor; + int keybits; + + assert(keylen >= 1 && keylen <= 4); + + node = NULL; + cursor = &tree->root; + keybits = 8 * keylen; + + /* Insert, creating path along the way. */ + while (keybits) { + if (!*cursor) + *cursor = alloc_node(node); + node = *cursor; + if (node->nextbyte) + key++; + if (*key & (1 << (node->bitnum & 7))) + cursor = &node->right; + else + cursor = &node->left; + keybits--; + } + *cursor = leaf; + + /* Merge subtrees if possible. */ + while (node) { + if (*key & (1 << (node->bitnum & 7))) + node->rightnode = LEAF; + else + node->leftnode = LEAF; + if (node->nextbyte) + break; + if (node->leftnode == NODE || node->rightnode == NODE) + break; + assert(node->left); + assert(node->right); + /* Compare */ + if (! tree->leaf_equal(node->left, node->right)) + break; + /* Keep left, drop right leaf. */ + leaf = node->left; + /* Check in parent */ + parent = node->parent; + if (!parent) { + /* root of tree! */ + tree->root = leaf; + tree->childnode = LEAF; + } else if (parent->left == node) { + parent->left = leaf; + parent->leftnode = LEAF; + if (parent->right) { + parent->keymask = 0; + parent->keybits = 0; + } else { + parent->keymask |= (1 << node->bitnum); + } + } else if (parent->right == node) { + parent->right = leaf; + parent->rightnode = LEAF; + if (parent->left) { + parent->keymask = 0; + parent->keybits = 0; + } else { + parent->keymask |= (1 << node->bitnum); + parent->keybits |= (1 << node->bitnum); + } + } else { + /* internal tree error */ + assert(0); + } + free(node); + node = parent; + } + + /* Propagate keymasks up along singleton chains. */ + while (node) { + parent = node->parent; + if (!parent) + break; + /* Nix the mask for parents with two children. */ + if (node->keymask == 0) { + parent->keymask = 0; + parent->keybits = 0; + } else if (parent->left && parent->right) { + parent->keymask = 0; + parent->keybits = 0; + } else { + assert((parent->keymask & node->keymask) == 0); + parent->keymask |= node->keymask; + parent->keymask |= (1 << parent->bitnum); + parent->keybits |= node->keybits; + if (parent->right) + parent->keybits |= (1 << parent->bitnum); + } + node = parent; + } + + return 0; +} + +/* + * Prune internal nodes. + * + * Fully populated subtrees that end at the same leaf have already + * been collapsed. There are still internal nodes that have for both + * their left and right branches a sequence of singletons that make + * identical choices and end in identical leaves. The keymask and + * keybits collected in the nodes describe the choices made in these + * singleton chains. When they are identical for the left and right + * branch of a node, and the two leaves comare identical, the node in + * question can be removed. + * + * Note that nodes with the nextbyte tag set will not be removed by + * this to ensure tree integrity. Note as well that the structure of + * utf8 ensures that these nodes would not have been candidates for + * removal in any case. + */ +static void +prune(struct tree *tree) +{ + struct node *node; + struct node *left; + struct node *right; + struct node *parent; + void *leftleaf; + void *rightleaf; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int count; + + if (verbose > 0) + printf("Pruning %s_%x\n", tree->type, tree->maxage); + + count = 0; + if (tree->childnode == LEAF) + return; + if (!tree->root) + return; + + leftmask = rightmask = 0; + node = tree->root; + while (node) { + if (node->nextbyte) + goto advance; + if (node->leftnode == LEAF) + goto advance; + if (node->rightnode == LEAF) + goto advance; + if (!node->left) + goto advance; + if (!node->right) + goto advance; + left = node->left; + right = node->right; + if (left->keymask == 0) + goto advance; + if (right->keymask == 0) + goto advance; + if (left->keymask != right->keymask) + goto advance; + if (left->keybits != right->keybits) + goto advance; + leftleaf = NULL; + while (!leftleaf) { + assert(left->left || left->right); + if (left->leftnode == LEAF) + leftleaf = left->left; + else if (left->rightnode == LEAF) + leftleaf = left->right; + else if (left->left) + left = left->left; + else if (left->right) + left = left->right; + else + assert(0); + } + rightleaf = NULL; + while (!rightleaf) { + assert(right->left || right->right); + if (right->leftnode == LEAF) + rightleaf = right->left; + else if (right->rightnode == LEAF) + rightleaf = right->right; + else if (right->left) + right = right->left; + else if (right->right) + right = right->right; + else + assert(0); + } + if (! tree->leaf_equal(leftleaf, rightleaf)) + goto advance; + /* + * This node has identical singleton-only subtrees. + * Remove it. + */ + parent = node->parent; + left = node->left; + right = node->right; + if (parent->left == node) + parent->left = left; + else if (parent->right == node) + parent->right = left; + else + assert(0); + left->parent = parent; + left->keymask |= (1 << node->bitnum); + node->left = NULL; + while (node) { + bitmask = 1 << node->bitnum; + leftmask &= ~bitmask; + rightmask &= ~bitmask; + if (node->leftnode == NODE && node->left) { + left = node->left; + free(node); + count++; + node = left; + } else if (node->rightnode == NODE && node->right) { + right = node->right; + free(node); + count++; + node = right; + } else { + node = NULL; + } + } + /* Propagate keymasks up along singleton chains. */ + node = parent; + /* Force re-check */ + bitmask = 1 << node->bitnum; + leftmask &= ~bitmask; + rightmask &= ~bitmask; + for (;;) { + if (node->left && node->right) + break; + if (node->left) { + left = node->left; + node->keymask |= left->keymask; + node->keybits |= left->keybits; + } + if (node->right) { + right = node->right; + node->keymask |= right->keymask; + node->keybits |= right->keybits; + } + node->keymask |= (1 << node->bitnum); + node = node->parent; + /* Force re-check */ + bitmask = 1 << node->bitnum; + leftmask &= ~bitmask; + rightmask &= ~bitmask; + } + advance: + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0 && + node->leftnode == NODE && + node->left) { + leftmask |= bitmask; + node = node->left; + } else if ((rightmask & bitmask) == 0 && + node->rightnode == NODE && + node->right) { + rightmask |= bitmask; + node = node->right; + } else { + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + } + } + if (verbose > 0) + printf("Pruned %d nodes\n", count); +} + +/* + * Mark the nodes in the tree that lead to leaves that must be + * emitted. + */ +static void +mark_nodes(struct tree *tree) +{ + struct node *node; + struct node *n; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int marked; + + marked = 0; + if (verbose > 0) + printf("Marking %s_%x\n", tree->type, tree->maxage); + if (tree->childnode == LEAF) + goto done; + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + if (tree->leaf_mark(node->left)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->left) { + assert(node->leftnode == NODE); + node = node->left; + continue; + } + } + if ((rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + if (tree->leaf_mark(node->right)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->right) { + assert(node->rightnode==NODE); + node = node->right; + continue; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + } + + /* second pass: left siblings and singletons */ + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + if (tree->leaf_mark(node->left)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->left) { + assert(node->leftnode == NODE); + node = node->left; + if (!node->mark && node->parent->mark) { + marked++; + node->mark = 1; + } + continue; + } + } + if ((rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + if (tree->leaf_mark(node->right)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->right) { + assert(node->rightnode==NODE); + node = node->right; + if (!node->mark && node->parent->mark && + !node->parent->left) { + marked++; + node->mark = 1; + } + continue; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + } +done: + if (verbose > 0) + printf("Marked %d nodes\n", marked); +} + +/* + * Compute the index of each node and leaf, which is the offset in the + * emitted trie. These value must be pre-computed because relative + * offsets between nodes are used to navigate the tree. + */ +static int +index_nodes(struct tree *tree, int index) +{ + struct node *node; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int count; + int indent; + + /* Align to a cache line (or half a cache line?). */ + while (index % 64) + index++; + tree->index = index; + indent = 1; + count = 0; + + if (verbose > 0) + printf("Indexing %s_%x: %d", tree->type, tree->maxage, index); + if (tree->childnode == LEAF) { + index += tree->leaf_size(tree->root); + goto done; + } + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + if (!node->mark) + goto skip; + count++; + if (node->index != index) + node->index = index; + index += node->size; +skip: + while (node) { + bitmask = 1 << node->bitnum; + if (node->mark && (leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + *tree->leaf_index(tree, node->left) = + index; + index += tree->leaf_size(node->left); + count++; + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if (node->mark && (rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + *tree->leaf_index(tree, node->right) = index; + index += tree->leaf_size(node->right); + count++; + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + indent -= 1; + } + } +done: + /* Round up to a multiple of 16 */ + while (index % 16) + index++; + if (verbose > 0) + printf("Final index %d\n", index); + return index; +} + +/* + * Compute the size of nodes and leaves. We start by assuming that + * each node needs to store a three-byte offset. The indexes of the + * nodes are calculated based on that, and then this function is + * called to see if the sizes of some nodes can be reduced. This is + * repeated until no more changes are seen. + */ +static int +size_nodes(struct tree *tree) +{ + struct tree *next; + struct node *node; + struct node *right; + struct node *n; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + unsigned int pathbits; + unsigned int pathmask; + int changed; + int offset; + int size; + int indent; + + indent = 1; + changed = 0; + size = 0; + + if (verbose > 0) + printf("Sizing %s_%x", tree->type, tree->maxage); + if (tree->childnode == LEAF) + goto done; + + assert(tree->childnode == NODE); + pathbits = 0; + pathmask = 0; + node = tree->root; + leftmask = rightmask = 0; + while (node) { + if (!node->mark) + goto skip; + offset = 0; + if (!node->left || !node->right) { + size = 1; + } else { + if (node->rightnode == NODE) { + right = node->right; + next = tree->next; + while (!right->mark) { + assert(next); + n = next->root; + while (n->bitnum != node->bitnum) { + if (pathbits & (1<bitnum)) + n = n->right; + else + n = n->left; + } + n = n->right; + assert(right->bitnum == n->bitnum); + right = n; + next = next->next; + } + offset = right->index - node->index; + } else { + offset = *tree->leaf_index(tree, node->right); + offset -= node->index; + } + assert(offset >= 0); + assert(offset <= 0xffffff); + if (offset <= 0xff) { + size = 2; + } else if (offset <= 0xffff) { + size = 3; + } else { /* offset <= 0xffffff */ + size = 4; + } + } + if (node->size != size || node->offset != offset) { + node->size = size; + node->offset = offset; + changed++; + } +skip: + while (node) { + bitmask = 1 << node->bitnum; + pathmask |= bitmask; + if (node->mark && (leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if (node->mark && (rightmask & bitmask) == 0) { + rightmask |= bitmask; + pathbits |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + pathmask &= ~bitmask; + pathbits &= ~bitmask; + node = node->parent; + indent -= 1; + } + } +done: + if (verbose > 0) + printf("Found %d changes\n", changed); + return changed; +} + +/* + * Emit a trie for the given tree into the data array. + */ +static void +emit(struct tree *tree, unsigned char *data) +{ + struct node *node; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int offlen; + int offset; + int index; + int indent; + unsigned char byte; + + index = tree->index; + data += index; + indent = 1; + if (verbose > 0) + printf("Emitting %s_%x\n", tree->type, tree->maxage); + if (tree->childnode == LEAF) { + assert(tree->root); + tree->leaf_emit(tree->root, data); + return; + } + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + if (!node->mark) + goto skip; + assert(node->offset != -1); + assert(node->index == index); + + byte = 0; + if (node->nextbyte) + byte |= NEXTBYTE; + byte |= (node->bitnum & BITNUM); + if (node->left && node->right) { + if (node->leftnode == NODE) + byte |= LEFTNODE; + if (node->rightnode == NODE) + byte |= RIGHTNODE; + if (node->offset <= 0xff) + offlen = 1; + else if (node->offset <= 0xffff) + offlen = 2; + else + offlen = 3; + offset = node->offset; + byte |= offlen << OFFLEN_SHIFT; + *data++ = byte; + index++; + while (offlen--) { + *data++ = offset & 0xff; + index++; + offset >>= 8; + } + } else if (node->left) { + if (node->leftnode == NODE) + byte |= TRIENODE; + *data++ = byte; + index++; + } else if (node->right) { + byte |= RIGHTNODE; + if (node->rightnode == NODE) + byte |= TRIENODE; + *data++ = byte; + index++; + } else { + assert(0); + } +skip: + while (node) { + bitmask = 1 << node->bitnum; + if (node->mark && (leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + data = tree->leaf_emit(node->left, + data); + index += tree->leaf_size(node->left); + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if (node->mark && (rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + data = tree->leaf_emit(node->right, + data); + index += tree->leaf_size(node->right); + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + indent -= 1; + } + } +} + +/* ------------------------------------------------------------------ */ + +/* + * Unicode data. + * + * We need to keep track of the Canonical Combining Class, the Age, + * and decompositions for a code point. + * + * For the Age, we store the index into the ages table. Effectively + * this is a generation number that the table maps to a unicode + * version. + * + * The correction field is used to indicate that this entry is in the + * corrections array, which contains decompositions that were + * corrected in later revisions. The value of the correction field is + * the Unicode version in which the mapping was corrected. + */ +struct unicode_data { + unsigned int code; + int ccc; + int gen; + int correction; + unsigned int *utf32nfkdi; + unsigned int *utf32nfkdicf; + char *utf8nfkdi; + char *utf8nfkdicf; +}; + +struct unicode_data unicode_data[0x110000]; +struct unicode_data *corrections; +int corrections_count; + +struct tree *nfkdi_tree; +struct tree *nfkdicf_tree; + +struct tree *trees; +int trees_count; + +/* + * Check the corrections array to see if this entry was corrected at + * some point. + */ +static struct unicode_data * +corrections_lookup(struct unicode_data *u) +{ + int i; + + for (i = 0; i != corrections_count; i++) + if (u->code == corrections[i].code) + return &corrections[i]; + return u; +} + +static int +nfkdi_equal(void *l, void *r) +{ + struct unicode_data *left = l; + struct unicode_data *right = r; + + if (left->gen != right->gen) + return 0; + if (left->ccc != right->ccc) + return 0; + if (left->utf8nfkdi && right->utf8nfkdi && + strcmp(left->utf8nfkdi, right->utf8nfkdi) == 0) + return 1; + if (left->utf8nfkdi || right->utf8nfkdi) + return 0; + return 1; +} + +static int +nfkdicf_equal(void *l, void *r) +{ + struct unicode_data *left = l; + struct unicode_data *right = r; + + if (left->gen != right->gen) + return 0; + if (left->ccc != right->ccc) + return 0; + if (left->utf8nfkdicf && right->utf8nfkdicf && + strcmp(left->utf8nfkdicf, right->utf8nfkdicf) == 0) + return 1; + if (left->utf8nfkdicf && right->utf8nfkdicf) + return 0; + if (left->utf8nfkdicf || right->utf8nfkdicf) + return 0; + if (left->utf8nfkdi && right->utf8nfkdi && + strcmp(left->utf8nfkdi, right->utf8nfkdi) == 0) + return 1; + if (left->utf8nfkdi || right->utf8nfkdi) + return 0; + return 1; +} + +static void +nfkdi_print(void *l, int indent) +{ + struct unicode_data *leaf = l; + + printf("%*sleaf @ %p code %X ccc %d gen %d", indent, "", leaf, + leaf->code, leaf->ccc, leaf->gen); + if (leaf->utf8nfkdi) + printf(" nfkdi \"%s\"", (const char*)leaf->utf8nfkdi); + printf("\n"); +} + +static void +nfkdicf_print(void *l, int indent) +{ + struct unicode_data *leaf = l; + + printf("%*sleaf @ %p code %X ccc %d gen %d", indent, "", leaf, + leaf->code, leaf->ccc, leaf->gen); + if (leaf->utf8nfkdicf) + printf(" nfkdicf \"%s\"", (const char*)leaf->utf8nfkdicf); + else if (leaf->utf8nfkdi) + printf(" nfkdi \"%s\"", (const char*)leaf->utf8nfkdi); + printf("\n"); +} + +static int +nfkdi_mark(void *l) +{ + return 1; +} + +static int +nfkdicf_mark(void *l) +{ + struct unicode_data *leaf = l; + + if (leaf->utf8nfkdicf) + return 1; + return 0; +} + +static int +correction_mark(void *l) +{ + struct unicode_data *leaf = l; + + return leaf->correction; +} + +static int +nfkdi_size(void *l) +{ + struct unicode_data *leaf = l; + + int size = 2; + if (leaf->utf8nfkdi) + size += strlen(leaf->utf8nfkdi) + 1; + return size; +} + +static int +nfkdicf_size(void *l) +{ + struct unicode_data *leaf = l; + + int size = 2; + if (leaf->utf8nfkdicf) + size += strlen(leaf->utf8nfkdicf) + 1; + else if (leaf->utf8nfkdi) + size += strlen(leaf->utf8nfkdi) + 1; + return size; +} + +static int * +nfkdi_index(struct tree *tree, void *l) +{ + struct unicode_data *leaf = l; + + return &tree->leafindex[leaf->code]; +} + +static int * +nfkdicf_index(struct tree *tree, void *l) +{ + struct unicode_data *leaf = l; + + return &tree->leafindex[leaf->code]; +} + +static unsigned char * +nfkdi_emit(void *l, unsigned char *data) +{ + struct unicode_data *leaf = l; + unsigned char *s; + + *data++ = leaf->gen; + if (leaf->utf8nfkdi) { + *data++ = DECOMPOSE; + s = (unsigned char*)leaf->utf8nfkdi; + while ((*data++ = *s++) != 0) + ; + } else { + *data++ = leaf->ccc; + } + return data; +} + +static unsigned char * +nfkdicf_emit(void *l, unsigned char *data) +{ + struct unicode_data *leaf = l; + unsigned char *s; + + *data++ = leaf->gen; + if (leaf->utf8nfkdicf) { + *data++ = DECOMPOSE; + s = (unsigned char*)leaf->utf8nfkdicf; + while ((*data++ = *s++) != 0) + ; + } else if (leaf->utf8nfkdi) { + *data++ = DECOMPOSE; + s = (unsigned char*)leaf->utf8nfkdi; + while ((*data++ = *s++) != 0) + ; + } else { + *data++ = leaf->ccc; + } + return data; +} + +static void +utf8_create(struct unicode_data *data) +{ + char utf[18*4+1]; + char *u; + unsigned int *um; + int i; + + u = utf; + um = data->utf32nfkdi; + if (um) { + for (i = 0; um[i]; i++) + u += utf8key(um[i], u); + *u = '\0'; + data->utf8nfkdi = strdup((char*)utf); + } + u = utf; + um = data->utf32nfkdicf; + if (um) { + for (i = 0; um[i]; i++) + u += utf8key(um[i], u); + *u = '\0'; + if (!data->utf8nfkdi || strcmp(data->utf8nfkdi, (char*)utf)) + data->utf8nfkdicf = strdup((char*)utf); + } +} + +static void +utf8_init(void) +{ + unsigned int unichar; + int i; + + for (unichar = 0; unichar != 0x110000; unichar++) + utf8_create(&unicode_data[unichar]); + + for (i = 0; i != corrections_count; i++) + utf8_create(&corrections[i]); +} + +static void +trees_init(void) +{ + struct unicode_data *data; + unsigned int maxage; + unsigned int nextage; + int count; + int i; + int j; + + /* Count the number of different ages. */ + count = 0; + nextage = (unsigned int)-1; + do { + maxage = nextage; + nextage = 0; + for (i = 0; i <= corrections_count; i++) { + data = &corrections[i]; + if (nextage < data->correction && + data->correction < maxage) + nextage = data->correction; + } + count++; + } while (nextage); + + /* Two trees per age: nfkdi and nfkdicf */ + trees_count = count * 2; + trees = calloc(trees_count, sizeof(struct tree)); + + /* Assign ages to the trees. */ + count = trees_count; + nextage = (unsigned int)-1; + do { + maxage = nextage; + trees[--count].maxage = maxage; + trees[--count].maxage = maxage; + nextage = 0; + for (i = 0; i <= corrections_count; i++) { + data = &corrections[i]; + if (nextage < data->correction && + data->correction < maxage) + nextage = data->correction; + } + } while (nextage); + + /* The ages assigned above are off by one. */ + for (i = 0; i != trees_count; i++) { + j = 0; + while (ages[j] < trees[i].maxage) + j++; + trees[i].maxage = ages[j-1]; + } + + /* Set up the forwarding between trees. */ + trees[trees_count-2].next = &trees[trees_count-1]; + trees[trees_count-1].leaf_mark = nfkdi_mark; + trees[trees_count-2].leaf_mark = nfkdicf_mark; + for (i = 0; i != trees_count-2; i += 2) { + trees[i].next = &trees[trees_count-2]; + trees[i].leaf_mark = correction_mark; + trees[i+1].next = &trees[trees_count-1]; + trees[i+1].leaf_mark = correction_mark; + } + + /* Assign the callouts. */ + for (i = 0; i != trees_count; i += 2) { + trees[i].type = "nfkdicf"; + trees[i].leaf_equal = nfkdicf_equal; + trees[i].leaf_print = nfkdicf_print; + trees[i].leaf_size = nfkdicf_size; + trees[i].leaf_index = nfkdicf_index; + trees[i].leaf_emit = nfkdicf_emit; + + trees[i+1].type = "nfkdi"; + trees[i+1].leaf_equal = nfkdi_equal; + trees[i+1].leaf_print = nfkdi_print; + trees[i+1].leaf_size = nfkdi_size; + trees[i+1].leaf_index = nfkdi_index; + trees[i+1].leaf_emit = nfkdi_emit; + } + + /* Finish init. */ + for (i = 0; i != trees_count; i++) + trees[i].childnode = NODE; +} + +static void +trees_populate(void) +{ + struct unicode_data *data; + unsigned int unichar; + char keyval[4]; + int keylen; + int i; + + for (i = 0; i != trees_count; i++) { + if (verbose > 0) { + printf("Populating %s_%x\n", + trees[i].type, trees[i].maxage); + } + for (unichar = 0; unichar != 0x110000; unichar++) { + if (unicode_data[unichar].gen < 0) + continue; + keylen = utf8key(unichar, keyval); + data = corrections_lookup(&unicode_data[unichar]); + if (data->correction <= trees[i].maxage) + data = &unicode_data[unichar]; + insert(&trees[i], keyval, keylen, data); + } + } +} + +static void +trees_reduce(void) +{ + int i; + int size; + int changed; + + for (i = 0; i != trees_count; i++) + prune(&trees[i]); + for (i = 0; i != trees_count; i++) + mark_nodes(&trees[i]); + do { + size = 0; + for (i = 0; i != trees_count; i++) + size = index_nodes(&trees[i], size); + changed = 0; + for (i = 0; i != trees_count; i++) + changed += size_nodes(&trees[i]); + } while (changed); + + utf8data = calloc(size, 1); + utf8data_size = size; + for (i = 0; i != trees_count; i++) + emit(&trees[i], utf8data); + + if (verbose > 0) { + for (i = 0; i != trees_count; i++) { + printf("%s_%x idx %d\n", + trees[i].type, trees[i].maxage, trees[i].index); + } + } + + nfkdi = utf8data + trees[trees_count-1].index; + nfkdicf = utf8data + trees[trees_count-2].index; + + nfkdi_tree = &trees[trees_count-1]; + nfkdicf_tree = &trees[trees_count-2]; +} + +static void +verify(struct tree *tree) +{ + struct unicode_data *data; + utf8leaf_t *leaf; + unsigned int unichar; + char key[4]; + int report; + int nocf; + + if (verbose > 0) + printf("Verifying %s_%x\n", tree->type, tree->maxage); + nocf = strcmp(tree->type, "nfkdicf"); + + for (unichar = 0; unichar != 0x110000; unichar++) { + report = 0; + data = corrections_lookup(&unicode_data[unichar]); + if (data->correction <= tree->maxage) + data = &unicode_data[unichar]; + utf8key(unichar, key); + leaf = utf8lookup(tree, key); + if (!leaf) { + if (data->gen != -1) + report++; + if (unichar < 0xd800 || unichar > 0xdfff) + report++; + } else { + if (unichar >= 0xd800 && unichar <= 0xdfff) + report++; + if (data->gen == -1) + report++; + if (data->gen != LEAF_GEN(leaf)) + report++; + if (LEAF_CCC(leaf) == DECOMPOSE) { + if (nocf) { + if (!data->utf8nfkdi) { + report++; + } else if (strcmp(data->utf8nfkdi, + LEAF_STR(leaf))) { + report++; + } + } else { + if (!data->utf8nfkdicf && + !data->utf8nfkdi) { + report++; + } else if (data->utf8nfkdicf) { + if (strcmp(data->utf8nfkdicf, + LEAF_STR(leaf))) + report++; + } else if (strcmp(data->utf8nfkdi, + LEAF_STR(leaf))) { + report++; + } + } + } else if (data->ccc != LEAF_CCC(leaf)) { + report++; + } + } + if (report) { + printf("%X code %X gen %d ccc %d" + " nfdki -> \"%s\"", + unichar, data->code, data->gen, + data->ccc, + data->utf8nfkdi); + if (leaf) { + printf(" age %d ccc %d" + " nfdki -> \"%s\"\n", + LEAF_GEN(leaf), + LEAF_CCC(leaf), + LEAF_CCC(leaf) == DECOMPOSE ? + LEAF_STR(leaf) : ""); + } + printf("\n"); + } + } +} + +static void +trees_verify(void) +{ + int i; + + for (i = 0; i != trees_count; i++) + verify(&trees[i]); +} + +/* ------------------------------------------------------------------ */ + +static void +help(void) +{ + printf("Usage: %s [options]\n", argv0); + printf("\n"); + printf("This program creates an a data trie used for parsing and\n"); + printf("normalization of UTF-8 strings. The trie is derived from\n"); + printf("a set of input files from the Unicode character database\n"); + printf("found at: http://www.unicode.org/Public/UCD/latest/ucd/\n"); + printf("\n"); + printf("The generated tree supports two normalization forms:\n"); + printf("\n"); + printf("\tnfkdi:\n"); + printf("\t- Apply unicode normalization form NFKD.\n"); + printf("\t- Remove any Default_Ignorable_Code_Point.\n"); + printf("\n"); + printf("\tnfkdicf:\n"); + printf("\t- Apply unicode normalization form NFKD.\n"); + printf("\t- Remove any Default_Ignorable_Code_Point.\n"); + printf("\t- Apply a full casefold (C + F).\n"); + printf("\n"); + printf("These forms were chosen as being most useful when dealing\n"); + printf("with file names: NFKD catches most cases where characters\n"); + printf("should be considered equivalent. The ignorables are mostly\n"); + printf("invisible, making names hard to type.\n"); + printf("\n"); + printf("The options to specify the files to be used are listed\n"); + printf("below with their default values, which are the names used\n"); + printf("by version 7.0.0 of the Unicode Character Database.\n"); + printf("\n"); + printf("The input files:\n"); + printf("\t-a %s\n", AGE_NAME); + printf("\t-c %s\n", CCC_NAME); + printf("\t-p %s\n", PROP_NAME); + printf("\t-d %s\n", DATA_NAME); + printf("\t-f %s\n", FOLD_NAME); + printf("\t-n %s\n", NORM_NAME); + printf("\n"); + printf("Additionally, the generated tables are tested using:\n"); + printf("\t-t %s\n", TEST_NAME); + printf("\n"); + printf("Finally, the output file:\n"); + printf("\t-o %s\n", UTF8_NAME); + printf("\n"); +} + +static void +usage(void) +{ + help(); + exit(1); +} + +static void +open_fail(const char *name, int error) +{ + printf("Error %d opening %s: %s\n", error, name, strerror(error)); + exit(1); +} + +static void +file_fail(const char *filename) +{ + printf("Error parsing %s\n", filename); + exit(1); +} + +static void +line_fail(const char *filename, const char *line) +{ + printf("Error parsing %s:%s\n", filename, line); + exit(1); +} + +/* ------------------------------------------------------------------ */ + +static void +print_utf32(unsigned int *utf32str) +{ + int i; + + for (i = 0; utf32str[i]; i++) + printf(" %X", utf32str[i]); +} + +static void +print_utf32nfkdi(unsigned int unichar) +{ + printf(" %X ->", unichar); + print_utf32(unicode_data[unichar].utf32nfkdi); + printf("\n"); +} + +static void +print_utf32nfkdicf(unsigned int unichar) +{ + printf(" %X ->", unichar); + print_utf32(unicode_data[unichar].utf32nfkdicf); + printf("\n"); +} + +/* ------------------------------------------------------------------ */ + +static void +age_init(void) +{ + FILE *file; + unsigned int first; + unsigned int last; + unsigned int unichar; + unsigned int major; + unsigned int minor; + unsigned int revision; + int gen; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", age_name); + + file = fopen(age_name, "r"); + if (!file) + open_fail(age_name, errno); + count = 0; + + gen = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "# Age=V%d_%d_%d", + &major, &minor, &revision); + if (ret == 3) { + ages_count++; + if (verbose > 1) + printf(" Age V%d_%d_%d\n", + major, minor, revision); + if (!age_valid(major, minor, revision)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "# Age=V%d_%d", &major, &minor); + if (ret == 2) { + ages_count++; + if (verbose > 1) + printf(" Age V%d_%d\n", major, minor); + if (!age_valid(major, minor, 0)) + line_fail(age_name, line); + continue; + } + } + + /* We must have found something above. */ + if (verbose > 1) + printf("%d age entries\n", ages_count); + if (ages_count == 0 || ages_count > MAXGEN) + file_fail(age_name); + + /* There is a 0 entry. */ + ages_count++; + ages = calloc(ages_count + 1, sizeof(*ages)); + /* And a guard entry. */ + ages[ages_count] = (unsigned int)-1; + + rewind(file); + count = 0; + gen = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "# Age=V%d_%d_%d", + &major, &minor, &revision); + if (ret == 3) { + ages[++gen] = + UNICODE_AGE(major, minor, revision); + if (verbose > 1) + printf(" Age V%d_%d_%d = gen %d\n", + major, minor, revision, gen); + if (!age_valid(major, minor, revision)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "# Age=V%d_%d", &major, &minor); + if (ret == 2) { + ages[++gen] = UNICODE_AGE(major, minor, 0); + if (verbose > 1) + printf(" Age V%d_%d = %d\n", + major, minor, gen); + if (!age_valid(major, minor, 0)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "%X..%X ; %d.%d #", + &first, &last, &major, &minor); + if (ret == 4) { + for (unichar = first; unichar <= last; unichar++) + unicode_data[unichar].gen = gen; + count += 1 + last - first; + if (verbose > 1) + printf(" %X..%X gen %d\n", first, last, gen); + if (!utf32valid(first) || !utf32valid(last)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "%X ; %d.%d #", &unichar, &major, &minor); + if (ret == 3) { + unicode_data[unichar].gen = gen; + count++; + if (verbose > 1) + printf(" %X gen %d\n", unichar, gen); + if (!utf32valid(unichar)) + line_fail(age_name, line); + continue; + } + } + unicode_maxage = ages[gen]; + fclose(file); + + /* Nix surrogate block */ + if (verbose > 1) + printf(" Removing surrogate block D800..DFFF\n"); + for (unichar = 0xd800; unichar <= 0xdfff; unichar++) + unicode_data[unichar].gen = -1; + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(age_name); +} + +static void +ccc_init(void) +{ + FILE *file; + unsigned int first; + unsigned int last; + unsigned int unichar; + unsigned int value; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", ccc_name); + + file = fopen(ccc_name, "r"); + if (!file) + open_fail(ccc_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X..%X ; %d #", &first, &last, &value); + if (ret == 3) { + for (unichar = first; unichar <= last; unichar++) { + unicode_data[unichar].ccc = value; + count++; + } + if (verbose > 1) + printf(" %X..%X ccc %d\n", first, last, value); + if (!utf32valid(first) || !utf32valid(last)) + line_fail(ccc_name, line); + continue; + } + ret = sscanf(line, "%X ; %d #", &unichar, &value); + if (ret == 2) { + unicode_data[unichar].ccc = value; + count++; + if (verbose > 1) + printf(" %X ccc %d\n", unichar, value); + if (!utf32valid(unichar)) + line_fail(ccc_name, line); + continue; + } + } + fclose(file); + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(ccc_name); +} + +static void +nfkdi_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + char *s; + unsigned int *um; + int count; + int i; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", data_name); + file = fopen(data_name, "r"); + if (!file) + open_fail(data_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X;%*[^;];%*[^;];%*[^;];%*[^;];%[^;];", + &unichar, buf0); + if (ret != 2) + continue; + if (!utf32valid(unichar)) + line_fail(data_name, line); + + s = buf0; + /* skip over */ + if (*s == '<') + while (*s++ != ' ') + ; + /* decode the decomposition into UTF-32 */ + i = 0; + while (*s) { + mapping[i] = strtoul(s, &s, 16); + if (!utf32valid(mapping[i])) + line_fail(data_name, line); + i++; + } + mapping[i++] = 0; + + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdi = um; + + if (verbose > 1) + print_utf32nfkdi(unichar); + count++; + } + fclose(file); + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(data_name); +} + +static void +nfkdicf_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + char status; + char *s; + unsigned int *um; + int i; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", fold_name); + file = fopen(fold_name, "r"); + if (!file) + open_fail(fold_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X; %c; %[^;];", &unichar, &status, buf0); + if (ret != 3) + continue; + if (!utf32valid(unichar)) + line_fail(fold_name, line); + /* Use the C+F casefold. */ + if (status != 'C' && status != 'F') + continue; + s = buf0; + if (*s == '<') + while (*s++ != ' ') + ; + i = 0; + while (*s) { + mapping[i] = strtoul(s, &s, 16); + if (!utf32valid(mapping[i])) + line_fail(fold_name, line); + i++; + } + mapping[i++] = 0; + + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + + if (verbose > 1) + print_utf32nfkdicf(unichar); + count++; + } + fclose(file); + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(fold_name); +} + +static void +ignore_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int first; + unsigned int last; + unsigned int *um; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", prop_name); + file = fopen(prop_name, "r"); + if (!file) + open_fail(prop_name, errno); + assert(file); + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X..%X ; %s # ", &first, &last, buf0); + if (ret == 3) { + if (strcmp(buf0, "Default_Ignorable_Code_Point")) + continue; + if (!utf32valid(first) || !utf32valid(last)) + line_fail(prop_name, line); + for (unichar = first; unichar <= last; unichar++) { + free(unicode_data[unichar].utf32nfkdi); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdi = um; + free(unicode_data[unichar].utf32nfkdicf); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdicf = um; + count++; + } + if (verbose > 1) + printf(" %X..%X Default_Ignorable_Code_Point\n", + first, last); + continue; + } + ret = sscanf(line, "%X ; %s # ", &unichar, buf0); + if (ret == 2) { + if (strcmp(buf0, "Default_Ignorable_Code_Point")) + continue; + if (!utf32valid(unichar)) + line_fail(prop_name, line); + free(unicode_data[unichar].utf32nfkdi); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdi = um; + free(unicode_data[unichar].utf32nfkdicf); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdicf = um; + if (verbose > 1) + printf(" %X Default_Ignorable_Code_Point\n", + unichar); + count++; + continue; + } + } + fclose(file); + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(prop_name); +} + +static void +corrections_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int major; + unsigned int minor; + unsigned int revision; + unsigned int age; + unsigned int *um; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + char *s; + int i; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", norm_name); + file = fopen(norm_name, "r"); + if (!file) + open_fail(norm_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X;%[^;];%[^;];%d.%d.%d #", + &unichar, buf0, buf1, + &major, &minor, &revision); + if (ret != 6) + continue; + if (!utf32valid(unichar) || !age_valid(major, minor, revision)) + line_fail(norm_name, line); + count++; + } + corrections = calloc(count, sizeof(struct unicode_data)); + corrections_count = count; + rewind(file); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X;%[^;];%[^;];%d.%d.%d #", + &unichar, buf0, buf1, + &major, &minor, &revision); + if (ret != 6) + continue; + if (!utf32valid(unichar) || !age_valid(major, minor, revision)) + line_fail(norm_name, line); + corrections[count] = unicode_data[unichar]; + assert(corrections[count].code == unichar); + age = UNICODE_AGE(major, minor, revision); + corrections[count].correction = age; + + i = 0; + s = buf0; + while (*s) { + mapping[i] = strtoul(s, &s, 16); + if (!utf32valid(mapping[i])) + line_fail(norm_name, line); + i++; + } + mapping[i++] = 0; + + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + corrections[count].utf32nfkdi = um; + + if (verbose > 1) + printf(" %X -> %s -> %s V%d_%d_%d\n", + unichar, buf0, buf1, major, minor, revision); + count++; + } + fclose(file); + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(norm_name); +} + +/* ------------------------------------------------------------------ */ + +/* + * Hangul decomposition (algorithm from Section 3.12 of Unicode 6.3.0) + * + * AC00;;Lo;0;L;;;;;N;;;;; + * D7A3;;Lo;0;L;;;;;N;;;;; + * + * SBase = 0xAC00 + * LBase = 0x1100 + * VBase = 0x1161 + * TBase = 0x11A7 + * LCount = 19 + * VCount = 21 + * TCount = 28 + * NCount = 588 (VCount * TCount) + * SCount = 11172 (LCount * NCount) + * + * Decomposition: + * SIndex = s - SBase + * + * LV (Canonical/Full) + * LIndex = SIndex / NCount + * VIndex = (Sindex % NCount) / TCount + * LPart = LBase + LIndex + * VPart = VBase + VIndex + * + * LVT (Canonical) + * LVIndex = (SIndex / TCount) * TCount + * TIndex = (Sindex % TCount + * LVPart = LBase + LVIndex + * TPart = TBase + TIndex + * + * LVT (Full) + * LIndex = SIndex / NCount + * VIndex = (Sindex % NCount) / TCount + * TIndex = (Sindex % TCount + * LPart = LBase + LIndex + * VPart = VBase + VIndex + * if (TIndex == 0) { + * d = + * } else { + * TPart = TBase + TIndex + * d = + * } + * + */ + +static void +hangul_decompose(void) +{ + unsigned int sb = 0xAC00; + unsigned int lb = 0x1100; + unsigned int vb = 0x1161; + unsigned int tb = 0x11a7; + /* unsigned int lc = 19; */ + unsigned int vc = 21; + unsigned int tc = 28; + unsigned int nc = (vc * tc); + /* unsigned int sc = (lc * nc); */ + unsigned int unichar; + unsigned int mapping[4]; + unsigned int *um; + int count; + int i; + + if (verbose > 0) + printf("Decomposing hangul\n"); + /* Hangul */ + count = 0; + for (unichar = 0xAC00; unichar <= 0xD7A3; unichar++) { + unsigned int si = unichar - sb; + unsigned int li = si / nc; + unsigned int vi = (si % nc) / tc; + unsigned int ti = si % tc; + + i = 0; + mapping[i++] = lb + li; + mapping[i++] = vb + vi; + if (ti) + mapping[i++] = tb + ti; + mapping[i++] = 0; + + assert(!unicode_data[unichar].utf32nfkdi); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdi = um; + + assert(!unicode_data[unichar].utf32nfkdicf); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + + if (verbose > 1) + print_utf32nfkdi(unichar); + + count++; + } + if (verbose > 0) + printf("Created %d entries\n", count); +} + +static void +nfkdi_decompose(void) +{ + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + unsigned int *um; + unsigned int *dc; + int count; + int i; + int j; + int ret; + + if (verbose > 0) + printf("Decomposing nfkdi\n"); + + count = 0; + for (unichar = 0; unichar != 0x110000; unichar++) { + if (!unicode_data[unichar].utf32nfkdi) + continue; + for (;;) { + ret = 1; + i = 0; + um = unicode_data[unichar].utf32nfkdi; + while (*um) { + dc = unicode_data[*um].utf32nfkdi; + if (dc) { + for (j = 0; dc[j]; j++) + mapping[i++] = dc[j]; + ret = 0; + } else { + mapping[i++] = *um; + } + um++; + } + mapping[i++] = 0; + if (ret) + break; + free(unicode_data[unichar].utf32nfkdi); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdi = um; + } + /* Add this decomposition to nfkdicf if there is no entry. */ + if (!unicode_data[unichar].utf32nfkdicf) { + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + } + if (verbose > 1) + print_utf32nfkdi(unichar); + count++; + } + if (verbose > 0) + printf("Processed %d entries\n", count); +} + +static void +nfkdicf_decompose(void) +{ + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + unsigned int *um; + unsigned int *dc; + int count; + int i; + int j; + int ret; + + if (verbose > 0) + printf("Decomposing nfkdicf\n"); + count = 0; + for (unichar = 0; unichar != 0x110000; unichar++) { + if (!unicode_data[unichar].utf32nfkdicf) + continue; + for (;;) { + ret = 1; + i = 0; + um = unicode_data[unichar].utf32nfkdicf; + while (*um) { + dc = unicode_data[*um].utf32nfkdicf; + if (dc) { + for (j = 0; dc[j]; j++) + mapping[i++] = dc[j]; + ret = 0; + } else { + mapping[i++] = *um; + } + um++; + } + mapping[i++] = 0; + if (ret) + break; + free(unicode_data[unichar].utf32nfkdicf); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + } + if (verbose > 1) + print_utf32nfkdicf(unichar); + count++; + } + if (verbose > 0) + printf("Processed %d entries\n", count); +} + +/* ------------------------------------------------------------------ */ + +int utf8agemax(struct tree *, const char *); +int utf8nagemax(struct tree *, const char *, size_t); +int utf8agemin(struct tree *, const char *); +int utf8nagemin(struct tree *, const char *, size_t); +ssize_t utf8len(struct tree *, const char *); +ssize_t utf8nlen(struct tree *, const char *, size_t); +struct utf8cursor; +int utf8cursor(struct utf8cursor *, struct tree *, const char *); +int utf8ncursor(struct utf8cursor *, struct tree *, const char *, size_t); +int utf8byte(struct utf8cursor *); + +/* + * Use trie to scan s, touching at most len bytes. + * Returns the leaf if one exists, NULL otherwise. + * + * A non-NULL return guarantees that the UTF-8 sequence starting at s + * is well-formed and corresponds to a known unicode code point. The + * shorthand for this will be "is valid UTF-8 unicode". + */ +static utf8leaf_t * +utf8nlookup(struct tree *tree, const char *s, size_t len) +{ + utf8trie_t *trie = utf8data + tree->index; + int offlen; + int offset; + int mask; + int node; + + if (!tree) + return NULL; + if (len == 0) + return NULL; + node = 1; + while (node) { + offlen = (*trie & OFFLEN) >> OFFLEN_SHIFT; + if (*trie & NEXTBYTE) { + if (--len == 0) + return NULL; + s++; + } + mask = 1 << (*trie & BITNUM); + if (*s & mask) { + /* Right leg */ + if (offlen) { + /* Right node at offset of trie */ + node = (*trie & RIGHTNODE); + offset = trie[offlen]; + while (--offlen) { + offset <<= 8; + offset |= trie[offlen]; + } + trie += offset; + } else if (*trie & RIGHTPATH) { + /* Right node after this node */ + node = (*trie & TRIENODE); + trie++; + } else { + /* No right node. */ + node = 0; + trie = NULL; + } + } else { + /* Left leg */ + if (offlen) { + /* Left node after this node. */ + node = (*trie & LEFTNODE); + trie += offlen + 1; + } else if (*trie & RIGHTPATH) { + /* No left node. */ + node = 0; + trie = NULL; + } else { + /* Left node after this node */ + node = (*trie & TRIENODE); + trie++; + } + } + } + return trie; +} + +/* + * Use trie to scan s. + * Returns the leaf if one exists, NULL otherwise. + * + * Forwards to trie_nlookup(). + */ +static utf8leaf_t * +utf8lookup(struct tree *tree, const char *s) +{ + return utf8nlookup(tree, s, (size_t)-1); +} + +/* + * Return the number of bytes used by the current UTF-8 sequence. + * Assumes the input points to the first byte of a valid UTF-8 + * sequence. + */ +static inline int +utf8clen(const char *s) +{ + unsigned char c = *s; + return 1 + (c >= 0xC0) + (c >= 0xE0) + (c >= 0xF0); +} + +/* + * Maximum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if only non-assigned code points are used. + */ +int +utf8agemax(struct tree *tree, const char *s) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!tree) + return -1; + while (*s) { + if (!(leaf = utf8lookup(tree, s))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age > age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} + +/* + * Minimum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if non-assigned code points are used. + */ +int +utf8agemin(struct tree *tree, const char *s) +{ + utf8leaf_t *leaf; + int age = tree->maxage; + int leaf_age; + + if (!tree) + return -1; + while (*s) { + if (!(leaf = utf8lookup(tree, s))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age < age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemax(struct tree *tree, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!tree) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(tree, s, len))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age > age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemin(struct tree *tree, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int leaf_age; + int age = tree->maxage; + + if (!tree) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(tree, s, len))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age < age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} + +/* + * Length of the normalization of s. + * Return -1 if s is not valid UTF-8 unicode. + * + * A string of Default_Ignorable_Code_Point has length 0. + */ +ssize_t +utf8len(struct tree *tree, const char *s) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!tree) + return -1; + while (*s) { + if (!(leaf = utf8lookup(tree, s))) + return -1; + if (ages[LEAF_GEN(leaf)] > tree->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + s += utf8clen(s); + } + return ret; +} + +/* + * Length of the normalization of s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +ssize_t +utf8nlen(struct tree *tree, const char *s, size_t len) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!tree) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(tree, s, len))) + return -1; + if (ages[LEAF_GEN(leaf)] > tree->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + len -= utf8clen(s); + s += utf8clen(s); + } + return ret; +} + +/* + * Cursor structure used by the normalizer. + */ +struct utf8cursor { + struct tree *tree; + const char *s; + const char *p; + const char *ss; + const char *sp; + unsigned int len; + unsigned int slen; + short int ccc; + short int nccc; + unsigned int unichar; +}; + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * s : string. + * len : length of s. + * u8c : pointer to cursor. + * trie : utf8trie_t to use for normalization. + * + * Returns -1 on error, 0 on success. + */ +int +utf8ncursor( + struct utf8cursor *u8c, + struct tree *tree, + const char *s, + size_t len) +{ + if (!tree) + return -1; + if (!s) + return -1; + u8c->tree = tree; + u8c->s = s; + u8c->p = NULL; + u8c->ss = NULL; + u8c->sp = NULL; + u8c->len = len; + u8c->slen = 0; + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + u8c->unichar = 0; + /* Check we didn't clobber the maximum length. */ + if (u8c->len != len) + return -1; + /* The first byte of s may not be an utf8 continuation. */ + if (len > 0 && (*s & 0xC0) == 0x80) + return -1; + return 0; +} + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * s : NUL-terminated string. + * u8c : pointer to cursor. + * trie : utf8trie_t to use for normalization. + * + * Returns -1 on error, 0 on success. + */ +int +utf8cursor( + struct utf8cursor *u8c, + struct tree *tree, + const char *s) +{ + return utf8ncursor(u8c, tree, s, (unsigned int)-1); +} + +/* + * Get one byte from the normalized form of the string described by u8c. + * + * Returns the byte cast to an unsigned char on succes, and -1 on failure. + * + * The cursor keeps track of the location in the string in u8c->s. + * When a character is decomposed, the current location is stored in + * u8c->p, and u8c->s is set to the start of the decomposition. Note + * that bytes from a decomposition do not count against u8c->len. + * + * Characters are emitted if they match the current CCC in u8c->ccc. + * Hitting end-of-string while u8c->ccc == STOPPER means we're done, + * and the function returns 0 in that case. + * + * Sorting by CCC is done by repeatedly scanning the string. The + * values of u8c->s and u8c->p are stored in u8c->ss and u8c->sp at + * the start of the scan. The first pass finds the lowest CCC to be + * emitted and stores it in u8c->nccc, the second pass emits the + * characters with this CCC and finds the next lowest CCC. This limits + * the number of passes to 1 + the number of different CCCs in the + * sequence being scanned. + * + * Therefore: + * u8c->p != NULL -> a decomposition is being scanned. + * u8c->ss != NULL -> this is a repeating scan. + * u8c->ccc == -1 -> this is the first scan of a repeating scan. + */ +int +utf8byte(struct utf8cursor *u8c) +{ + utf8leaf_t *leaf; + int ccc; + + for (;;) { + /* Check for the end of a decomposed character. */ + if (u8c->p && *u8c->s == '\0') { + u8c->s = u8c->p; + u8c->p = NULL; + } + + /* Check for end-of-string. */ + if (!u8c->p && (u8c->len == 0 || *u8c->s == '\0')) { + /* There is no next byte. */ + if (u8c->ccc == STOPPER) + return 0; + /* End-of-string during a scan counts as a stopper. */ + ccc = STOPPER; + goto ccc_mismatch; + } else if ((*u8c->s & 0xC0) == 0x80) { + /* This is a continuation of the current character. */ + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Look up the data for the current character. */ + if (u8c->p) + leaf = utf8lookup(u8c->tree, u8c->s); + else + leaf = utf8nlookup(u8c->tree, u8c->s, u8c->len); + + /* No leaf found implies that the input is a binary blob. */ + if (!leaf) + return -1; + + /* Characters that are too new have CCC 0. */ + if (ages[LEAF_GEN(leaf)] > u8c->tree->maxage) { + ccc = STOPPER; + } else if ((ccc = LEAF_CCC(leaf)) == DECOMPOSE) { + u8c->len -= utf8clen(u8c->s); + u8c->p = u8c->s + utf8clen(u8c->s); + u8c->s = LEAF_STR(leaf); + /* Empty decomposition implies CCC 0. */ + if (*u8c->s == '\0') { + if (u8c->ccc == STOPPER) + continue; + ccc = STOPPER; + goto ccc_mismatch; + } + leaf = utf8lookup(u8c->tree, u8c->s); + ccc = LEAF_CCC(leaf); + } + u8c->unichar = utf8code(u8c->s); + + /* + * If this is not a stopper, then see if it updates + * the next canonical class to be emitted. + */ + if (ccc != STOPPER && u8c->ccc < ccc && ccc < u8c->nccc) + u8c->nccc = ccc; + + /* + * Return the current byte if this is the current + * combining class. + */ + if (ccc == u8c->ccc) { + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Current combining class mismatch. */ + ccc_mismatch: + if (u8c->nccc == STOPPER) { + /* + * Scan forward for the first canonical class + * to be emitted. Save the position from + * which to restart. + */ + assert(u8c->ccc == STOPPER); + u8c->ccc = MINCCC - 1; + u8c->nccc = ccc; + u8c->sp = u8c->p; + u8c->ss = u8c->s; + u8c->slen = u8c->len; + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (ccc != STOPPER) { + /* Not a stopper, and not the ccc we're emitting. */ + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (u8c->nccc != MAXCCC + 1) { + /* At a stopper, restart for next ccc. */ + u8c->ccc = u8c->nccc; + u8c->nccc = MAXCCC + 1; + u8c->s = u8c->ss; + u8c->p = u8c->sp; + u8c->len = u8c->slen; + } else { + /* All done, proceed from here. */ + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + u8c->sp = NULL; + u8c->ss = NULL; + u8c->slen = 0; + } + } +} + +/* ------------------------------------------------------------------ */ + +static int +normalize_line(struct tree *tree) +{ + char *s; + char *t; + int c; + struct utf8cursor u8c; + + /* First test: null-terminated string. */ + s = buf2; + t = buf3; + if (utf8cursor(&u8c, tree, s)) + return -1; + while ((c = utf8byte(&u8c)) > 0) + if (c != (unsigned char)*t++) + return -1; + if (c < 0) + return -1; + if (*t != 0) + return -1; + + /* Second test: length-limited string. */ + s = buf2; + /* Replace NUL with a value that will cause an error if seen. */ + s[strlen(s) + 1] = -1; + t = buf3; + if (utf8cursor(&u8c, tree, s)) + return -1; + while ((c = utf8byte(&u8c)) > 0) + if (c != (unsigned char)*t++) + return -1; + if (c < 0) + return -1; + if (*t != 0) + return -1; + + return 0; +} + +static void +normalization_test(void) +{ + FILE *file; + unsigned int unichar; + struct unicode_data *data; + char *s; + char *t; + int ret; + int ignorables; + int tests = 0; + int failures = 0; + + if (verbose > 0) + printf("Parsing %s\n", test_name); + /* Step one, read data from file. */ + file = fopen(test_name, "r"); + if (!file) + open_fail(test_name, errno); + + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%[^;];%*[^;];%*[^;];%*[^;];%[^;];", + buf0, buf1); + if (ret != 2 || *line == '#') + continue; + s = buf0; + t = buf2; + while (*s) { + unichar = strtoul(s, &s, 16); + t += utf8key(unichar, t); + } + *t = '\0'; + + ignorables = 0; + s = buf1; + t = buf3; + while (*s) { + unichar = strtoul(s, &s, 16); + data = &unicode_data[unichar]; + if (data->utf8nfkdi && !*data->utf8nfkdi) + ignorables = 1; + else + t += utf8key(unichar, t); + } + *t = '\0'; + + tests++; + if (normalize_line(nfkdi_tree) < 0) { + printf("\nline %s -> %s", buf0, buf1); + if (ignorables) + printf(" (ignorables removed)"); + printf(" failure\n"); + failures++; + } + } + fclose(file); + if (verbose > 0) + printf("Ran %d tests with %d failures\n", tests, failures); + if (failures) + file_fail(test_name); +} + +/* ------------------------------------------------------------------ */ + +static void +write_file(void) +{ + FILE *file; + int i; + int j; + int t; + int gen; + + if (verbose > 0) + printf("Writing %s\n", utf8_name); + file = fopen(utf8_name, "w"); + if (!file) + open_fail(utf8_name, errno); + + fprintf(file, "/* This file is generated code, do not edit. */\n"); + fprintf(file, "#ifndef __INCLUDED_FROM_UTF8NORM_C__\n"); + fprintf(file, "#error Only xfs_utf8.c may include this file.\n"); + fprintf(file, "#endif\n"); + fprintf(file, "\n"); + fprintf(file, "static const unsigned int utf8vers = %#x;\n", + unicode_maxage); + fprintf(file, "\n"); + fprintf(file, "static const unsigned int utf8agetab[] = {\n"); + for (i = 0; i != ages_count; i++) + fprintf(file, "\t%#x%s\n", ages[i], + ages[i] == unicode_maxage ? "" : ","); + fprintf(file, "};\n"); + fprintf(file, "\n"); + fprintf(file, "static const struct utf8data utf8nfkdicfdata[] = {\n"); + t = 0; + for (gen = 0; gen < ages_count; gen++) { + fprintf(file, "\t{ %#x, %d }%s\n", + ages[gen], trees[t].index, + ages[gen] == unicode_maxage ? "" : ","); + if (trees[t].maxage == ages[gen]) + t += 2; + } + fprintf(file, "};\n"); + fprintf(file, "\n"); + fprintf(file, "static const struct utf8data utf8nfkdidata[] = {\n"); + t = 1; + for (gen = 0; gen < ages_count; gen++) { + fprintf(file, "\t{ %#x, %d }%s\n", + ages[gen], trees[t].index, + ages[gen] == unicode_maxage ? "" : ","); + if (trees[t].maxage == ages[gen]) + t += 2; + } + fprintf(file, "};\n"); + fprintf(file, "\n"); + fprintf(file, "static const unsigned char utf8data[%zd] = {\n", + utf8data_size); + t = 0; + for (i = 0; i != utf8data_size; i += 16) { + if (i == trees[t].index) { + fprintf(file, "\t/* %s_%x */\n", + trees[t].type, trees[t].maxage); + if (t < trees_count-1) + t++; + } + fprintf(file, "\t"); + for (j = i; j != i + 16; j++) + fprintf(file, "0x%.2x%s", utf8data[j], + (j < utf8data_size -1 ? "," : "")); + fprintf(file, "\n"); + } + fprintf(file, "};\n"); + fclose(file); +} + +/* ------------------------------------------------------------------ */ + +int +main(int argc, char *argv[]) +{ + unsigned int unichar; + int opt; + + argv0 = argv[0]; + + while ((opt = getopt(argc, argv, "a:c:d:f:hn:o:p:t:v")) != -1) { + switch (opt) { + case 'a': + age_name = optarg; + break; + case 'c': + ccc_name = optarg; + break; + case 'd': + data_name = optarg; + break; + case 'f': + fold_name = optarg; + break; + case 'n': + norm_name = optarg; + break; + case 'o': + utf8_name = optarg; + break; + case 'p': + prop_name = optarg; + break; + case 't': + test_name = optarg; + break; + case 'v': + verbose++; + break; + case 'h': + help(); + exit(0); + default: + usage(); + } + } + + if (verbose > 1) + help(); + for (unichar = 0; unichar != 0x110000; unichar++) + unicode_data[unichar].code = unichar; + age_init(); + ccc_init(); + nfkdi_init(); + nfkdicf_init(); + ignore_init(); + corrections_init(); + hangul_decompose(); + nfkdi_decompose(); + nfkdicf_decompose(); + utf8_init(); + trees_init(); + trees_populate(); + trees_reduce(); + trees_verify(); + /* Prevent "unused function" warning. */ + (void)lookup(nfkdi_tree, " "); + if (verbose > 2) + tree_walk(nfkdi_tree); + if (verbose > 2) + tree_walk(nfkdicf_tree); + normalization_test(); + write_file(); + + return 0; +} diff --git a/fs/xfs/utf8norm/utf8norm.c b/fs/xfs/utf8norm/utf8norm.c new file mode 100644 index 0000000..995c4df --- /dev/null +++ b/fs/xfs/utf8norm/utf8norm.c @@ -0,0 +1,649 @@ +/* + * Copyright (c) 2014 SGI. + * 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 "utf8norm.h" + +struct utf8data { + unsigned int maxage; + unsigned int offset; +}; + +#define __INCLUDED_FROM_UTF8NORM_C__ +#include "utf8data.h" +#undef __INCLUDED_FROM_UTF8NORM_C__ + +const unsigned int utf8version(void) +{ + return utf8vers; +} +EXPORT_SYMBOL(utf8version); + +/* + * UTF-8 valid ranges. + * + * The UTF-8 encoding spreads the bits of a 32bit word over several + * bytes. This table gives the ranges that can be held and how they'd + * be represented. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000000 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000000 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * There is an additional requirement on UTF-8, in that only the + * shortest representation of a 32bit value is to be used. A decoder + * must not decode sequences that do not satisfy this requirement. + * Thus the allowed ranges have a lower bound. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000080 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000800 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00010000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00200000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x04000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * Actual unicode characters are limited to the range 0x0 - 0x10FFFF, + * 17 planes of 65536 values. This limits the sequences actually seen + * even more, to just the following. + * + * 0 - 0x7F: 0 - 0x7F + * 0x80 - 0x7FF: 0xC2 0x80 - 0xDF 0xBF + * 0x800 - 0xFFFF: 0xE0 0xA0 0x80 - 0xEF 0xBF 0xBF + * 0x10000 - 0x10FFFF: 0xF0 0x90 0x80 0x80 - 0xF4 0x8F 0xBF 0xBF + * + * Within those ranges the surrogates 0xD800 - 0xDFFF are not allowed. + * + * Note that the longest sequence seen with valid usage is 4 bytes, + * the same a single UTF-32 character. This makes the UTF-8 + * representation of Unicode strictly smaller than UTF-32. + * + * The shortest sequence requirement was introduced by: + * Corrigendum #1: UTF-8 Shortest Form + * It can be found here: + * http://www.unicode.org/versions/corrigendum1.html + * + */ + +/* + * Return the number of bytes used by the current UTF-8 sequence. + * Assumes the input points to the first byte of a valid UTF-8 + * sequence. + */ +static inline int +utf8clen(const char *s) +{ + unsigned char c = *s; + return 1 + (c >= 0xC0) + (c >= 0xE0) + (c >= 0xF0); +} + +/* + * utf8trie_t + * + * A compact binary tree, used to decode UTF-8 characters. + * + * Internal nodes are one byte for the node itself, and up to three + * bytes for an offset into the tree. The first byte contains the + * following information: + * NEXTBYTE - flag - advance to next byte if set + * BITNUM - 3 bit field - the bit number to tested + * OFFLEN - 2 bit field - number of bytes in the offset + * if offlen == 0 (non-branching node) + * RIGHTPATH - 1 bit field - set if the following node is for the + * right-hand path (tested bit is set) + * TRIENODE - 1 bit field - set if the following node is an internal + * node, otherwise it is a leaf node + * if offlen != 0 (branching node) + * LEFTNODE - 1 bit field - set if the left-hand node is internal + * RIGHTNODE - 1 bit field - set if the right-hand node is internal + * + * Due to the way utf8 works, there cannot be branching nodes with + * NEXTBYTE set, and moreover those nodes always have a righthand + * descendant. + */ +typedef const unsigned char utf8trie_t; +#define BITNUM 0x07 +#define NEXTBYTE 0x08 +#define OFFLEN 0x30 +#define OFFLEN_SHIFT 4 +#define RIGHTPATH 0x40 +#define TRIENODE 0x80 +#define RIGHTNODE 0x40 +#define LEFTNODE 0x80 + +/* + * utf8leaf_t + * + * The leaves of the trie are embedded in the trie, and so the same + * underlying datatype: unsigned char. + * + * leaf[0]: The unicode version, stored as a generation number that is + * an index into utf8agetab[]. With this we can filter code + * points based on the unicode version in which they were + * defined. The CCC of a non-defined code point is 0. + * leaf[1]: Canonical Combining Class. During normalization, we need + * to do a stable sort into ascending order of all characters + * with a non-zero CCC that occur between two characters with + * a CCC of 0, or at the begin or end of a string. + * The unicode standard guarantees that all CCC values are + * between 0 and 254 inclusive, which leaves 255 available as + * a special value. + * Code points with CCC 0 are known as stoppers. + * leaf[2]: Decomposition. If leaf[1] == 255, then leaf[2] is the + * start of a NUL-terminated string that is the decomposition + * of the character. + * The CCC of a decomposable character is the same as the CCC + * of the first character of its decomposition. + * Some characters decompose as the empty string: these are + * characters with the Default_Ignorable_Code_Point property. + * These do affect normalization, as they all have CCC 0. + * + * The decompositions in the trie have been fully expanded. + * + * Casefolding, if applicable, is also done using decompositions. + * + * The trie is constructed in such a way that leaves exist for all + * UTF-8 sequences that match the criteria from the "UTF-8 valid + * ranges" comment above, and only for those sequences. Therefore a + * lookup in the trie can be used to validate the UTF-8 input. + */ +typedef const unsigned char utf8leaf_t; + +#define LEAF_GEN(LEAF) ((LEAF)[0]) +#define LEAF_CCC(LEAF) ((LEAF)[1]) +#define LEAF_STR(LEAF) ((const char*)((LEAF) + 2)) + +#define MINCCC (0) +#define MAXCCC (254) +#define STOPPER (0) +#define DECOMPOSE (255) + +/* + * Use trie to scan s, touching at most len bytes. + * Returns the leaf if one exists, NULL otherwise. + * + * A non-NULL return guarantees that the UTF-8 sequence starting at s + * is well-formed and corresponds to a known unicode code point. The + * shorthand for this will be "is valid UTF-8 unicode". + */ +static utf8leaf_t * +utf8nlookup(utf8data_t data, const char *s, size_t len) +{ + utf8trie_t *trie = utf8data + data->offset; + int offlen; + int offset; + int mask; + int node; + + if (!data) + return NULL; + if (len == 0) + return NULL; + node = 1; + while (node) { + offlen = (*trie & OFFLEN) >> OFFLEN_SHIFT; + if (*trie & NEXTBYTE) { + if (--len == 0) + return NULL; + s++; + } + mask = 1 << (*trie & BITNUM); + if (*s & mask) { + /* Right leg */ + if (offlen) { + /* Right node at offset of trie */ + node = (*trie & RIGHTNODE); + offset = trie[offlen]; + while (--offlen) { + offset <<= 8; + offset |= trie[offlen]; + } + trie += offset; + } else if (*trie & RIGHTPATH) { + /* Right node after this node */ + node = (*trie & TRIENODE); + trie++; + } else { + /* No right node. */ + node = 0; + trie = NULL; + } + } else { + /* Left leg */ + if (offlen) { + /* Left node after this node. */ + node = (*trie & LEFTNODE); + trie += offlen + 1; + } else if (*trie & RIGHTPATH) { + /* No left node. */ + node = 0; + trie = NULL; + } else { + /* Left node after this node */ + node = (*trie & TRIENODE); + trie++; + } + } + } + return trie; +} + +/* + * Use trie to scan s. + * Returns the leaf if one exists, NULL otherwise. + * + * Forwards to utf8nlookup(). + */ +static utf8leaf_t * +utf8lookup(utf8data_t data, const char *s) +{ + return utf8nlookup(data, s, (size_t)-1); +} + +/* + * Maximum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if only non-assigned code points are used. + */ +int +utf8agemax(utf8data_t data, const char *s) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!data) + return -1; + while (*s) { + if (!(leaf = utf8lookup(data, s))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age > age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} +EXPORT_SYMBOL(utf8agemax); + +/* + * Minimum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if non-assigned code points are used. + */ +int +utf8agemin(utf8data_t data, const char *s) +{ + utf8leaf_t *leaf; + int age; + int leaf_age; + + if (!data) + return -1; + age = data->maxage; + while (*s) { + if (!(leaf = utf8lookup(data, s))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age < age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} +EXPORT_SYMBOL(utf8agemin); + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemax(utf8data_t data, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!data) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(data, s, len))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age > age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} +EXPORT_SYMBOL(utf8nagemax); + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemin(utf8data_t data, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int leaf_age; + int age; + + if (!data) + return -1; + age = data->maxage; + while (len && *s) { + if (!(leaf = utf8nlookup(data, s, len))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age < age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} +EXPORT_SYMBOL(utf8nagemin); + +/* + * Length of the normalization of s. + * Return -1 if s is not valid UTF-8 unicode. + * + * A string of Default_Ignorable_Code_Point has length 0. + */ +ssize_t +utf8len(utf8data_t data, const char *s) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!data) + return -1; + while (*s) { + if (!(leaf = utf8lookup(data, s))) + return -1; + if (utf8agetab[LEAF_GEN(leaf)] > data->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + s += utf8clen(s); + } + return ret; +} +EXPORT_SYMBOL(utf8len); + +/* + * Length of the normalization of s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +ssize_t +utf8nlen(utf8data_t data, const char *s, size_t len) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!data) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(data, s, len))) + return -1; + if (utf8agetab[LEAF_GEN(leaf)] > data->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + len -= utf8clen(s); + s += utf8clen(s); + } + return ret; +} +EXPORT_SYMBOL(utf8nlen); + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * u8c : pointer to cursor. + * data : utf8data_t to use for normalization. + * s : string. + * len : length of s. + * + * Returns -1 on error, 0 on success. + */ +int +utf8ncursor( + struct utf8cursor *u8c, + utf8data_t data, + const char *s, + size_t len) +{ + if (!data) + return -1; + if (!s) + return -1; + u8c->data = data; + u8c->s = s; + u8c->p = NULL; + u8c->ss = NULL; + u8c->sp = NULL; + u8c->len = len; + u8c->slen = 0; + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + /* Check we didn't clobber the maximum length. */ + if (u8c->len != len) + return -1; + /* The first byte of s may not be an utf8 continuation. */ + if (len > 0 && (*s & 0xC0) == 0x80) + return -1; + return 0; +} +EXPORT_SYMBOL(utf8ncursor); + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * u8c : pointer to cursor. + * data : utf8data_t to use for normalization. + * s : NUL-terminated string. + * + * Returns -1 on error, 0 on success. + */ +int +utf8cursor( + struct utf8cursor *u8c, + utf8data_t data, + const char *s) +{ + return utf8ncursor(u8c, data, s, (unsigned int)-1); +} +EXPORT_SYMBOL(utf8cursor); + +/* + * Get one byte from the normalized form of the string described by u8c. + * + * Returns the byte cast to an unsigned char on succes, and -1 on failure. + * + * The cursor keeps track of the location in the string in u8c->s. + * When a character is decomposed, the current location is stored in + * u8c->p, and u8c->s is set to the start of the decomposition. Note + * that bytes from a decomposition do not count against u8c->len. + * + * Characters are emitted if they match the current CCC in u8c->ccc. + * Hitting end-of-string while u8c->ccc == STOPPER means we're done, + * and the function returns 0 in that case. + * + * Sorting by CCC is done by repeatedly scanning the string. The + * values of u8c->s and u8c->p are stored in u8c->ss and u8c->sp at + * the start of the scan. The first pass finds the lowest CCC to be + * emitted and stores it in u8c->nccc, the second pass emits the + * characters with this CCC and finds the next lowest CCC. This limits + * the number of passes to 1 + the number of different CCCs in the + * sequence being scanned. + * + * Therefore: + * u8c->p != NULL -> a decomposition is being scanned. + * u8c->ss != NULL -> this is a repeating scan. + * u8c->ccc == -1 -> this is the first scan of a repeating scan. + */ +int +utf8byte(struct utf8cursor *u8c) +{ + utf8leaf_t *leaf; + int ccc; + + for (;;) { + /* Check for the end of a decomposed character. */ + if (u8c->p && *u8c->s == '\0') { + u8c->s = u8c->p; + u8c->p = NULL; + } + + /* Check for end-of-string. */ + if (!u8c->p && (u8c->len == 0 || *u8c->s == '\0')) { + /* There is no next byte. */ + if (u8c->ccc == STOPPER) + return 0; + /* End-of-string during a scan counts as a stopper. */ + ccc = STOPPER; + goto ccc_mismatch; + } else if ((*u8c->s & 0xC0) == 0x80) { + /* This is a continuation of the current character. */ + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Look up the data for the current character. */ + if (u8c->p) + leaf = utf8lookup(u8c->data, u8c->s); + else + leaf = utf8nlookup(u8c->data, u8c->s, u8c->len); + + /* No leaf found implies that the input is a binary blob. */ + if (!leaf) + return -1; + + /* Characters that are too new have CCC 0. */ + if (utf8agetab[LEAF_GEN(leaf)] > u8c->data->maxage) { + ccc = STOPPER; + } else if ((ccc = LEAF_CCC(leaf)) == DECOMPOSE) { + u8c->len -= utf8clen(u8c->s); + u8c->p = u8c->s + utf8clen(u8c->s); + u8c->s = LEAF_STR(leaf); + /* Empty decomposition implies CCC 0. */ + if (*u8c->s == '\0') { + if (u8c->ccc == STOPPER) + continue; + ccc = STOPPER; + goto ccc_mismatch; + } + leaf = utf8lookup(u8c->data, u8c->s); + ccc = LEAF_CCC(leaf); + } + + /* + * If this is not a stopper, then see if it updates + * the next canonical class to be emitted. + */ + if (ccc != STOPPER && u8c->ccc < ccc && ccc < u8c->nccc) + u8c->nccc = ccc; + + /* + * Return the current byte if this is the current + * combining class. + */ + if (ccc == u8c->ccc) { + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Current combining class mismatch. */ + ccc_mismatch: + if (u8c->nccc == STOPPER) { + /* + * Scan forward for the first canonical class + * to be emitted. Save the position from + * which to restart. + */ + u8c->ccc = MINCCC - 1; + u8c->nccc = ccc; + u8c->sp = u8c->p; + u8c->ss = u8c->s; + u8c->slen = u8c->len; + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (ccc != STOPPER) { + /* Not a stopper, and not the ccc we're emitting. */ + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (u8c->nccc != MAXCCC + 1) { + /* At a stopper, restart for next ccc. */ + u8c->ccc = u8c->nccc; + u8c->nccc = MAXCCC + 1; + u8c->s = u8c->ss; + u8c->p = u8c->sp; + u8c->len = u8c->slen; + } else { + /* All done, proceed from here. */ + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + u8c->sp = NULL; + u8c->ss = NULL; + u8c->slen = 0; + } + } +} +EXPORT_SYMBOL(utf8byte); + +const struct utf8data * +utf8nfkdi(unsigned int maxage) +{ + int i = sizeof(utf8nfkdidata)/sizeof(utf8nfkdidata[0]) - 1; + + while (maxage < utf8nfkdidata[i].maxage) + i--; + if (maxage > utf8nfkdidata[i].maxage) + return NULL; + return &utf8nfkdidata[i]; +} +EXPORT_SYMBOL(utf8nfkdi); + +const struct utf8data * +utf8nfkdicf(unsigned int maxage) +{ + int i = sizeof(utf8nfkdicfdata)/sizeof(utf8nfkdicfdata[0]) - 1; + + while (maxage < utf8nfkdicfdata[i].maxage) + i--; + if (maxage > utf8nfkdicfdata[i].maxage) + return NULL; + return &utf8nfkdicfdata[i]; +} +EXPORT_SYMBOL(utf8nfkdicf); + +MODULE_AUTHOR("SGI"); +MODULE_DESCRIPTION("utf8 normalization"); +MODULE_LICENSE("GPL"); diff --git a/fs/xfs/utf8norm/utf8norm.h b/fs/xfs/utf8norm/utf8norm.h new file mode 100644 index 0000000..44a9e53 --- /dev/null +++ b/fs/xfs/utf8norm/utf8norm.h @@ -0,0 +1,116 @@ +/* + * Copyright (c) 2014 SGI. + * 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 UTF8NORM_H +#define UTF8NORM_H + +#include +#include +#include +#include + +/* An opaque type used to determine the normalization in use. */ +typedef const struct utf8data *utf8data_t; + +/* Encoding a unicode version number as a single unsigned int. */ +#define UNICODE_MAJ_SHIFT (16) +#define UNICODE_MIN_SHIFT (8) + +#define UNICODE_AGE(MAJ,MIN,REV) \ + (((unsigned int)(MAJ) << UNICODE_MAJ_SHIFT) | \ + ((unsigned int)(MIN) << UNICODE_MIN_SHIFT) | \ + ((unsigned int)(REV))) + +/* Highest unicode version supported by the data tables. */ +extern const unsigned int utf8version(void); + +/* + * Look for the correct utf8data_t for a unicode version. + * Returns NULL if the version requested is too new. + * + * Two normalization forms are supported: nfkdi and nfkdicf. + * + * nfkdi: + * - Apply unicode normalization form NFKD. + * - Remove any Default_Ignorable_Code_Point. + * + * nfkdicf: + * - Apply unicode normalization form NFKD. + * - Remove any Default_Ignorable_Code_Point. + * - Apply a full casefold (C + F). + */ +extern utf8data_t utf8nfkdi(unsigned int); +extern utf8data_t utf8nfkdicf(unsigned int); + +/* + * Determine the maximum age of any unicode character in the string. + * Returns 0 if only unassigned code points are present. + * Returns -1 if the input is not valid UTF-8. + */ +extern int utf8agemax(utf8data_t, const char *); +extern int utf8nagemax(utf8data_t, const char *, size_t); + +/* + * Determine the minimum age of any unicode character in the string. + * Returns 0 if any unassigned code points are present. + * Returns -1 if the input is not valid UTF-8. + */ +extern int utf8agemin(utf8data_t, const char *); +extern int utf8nagemin(utf8data_t, const char *, size_t); + +/* + * Determine the length of the normalized from of the string, + * excluding any terminating NULL byte. + * Returns 0 if only ignorable code points are present. + * Returns -1 if the input is not valid UTF-8. + */ +extern ssize_t utf8len(utf8data_t, const char *); +extern ssize_t utf8nlen(utf8data_t, const char *, size_t); + +/* + * Cursor structure used by the normalizer. + */ +struct utf8cursor { + utf8data_t data; + const char *s; + const char *p; + const char *ss; + const char *sp; + unsigned int len; + unsigned int slen; + short int ccc; + short int nccc; +}; + +/* + * Initialize a utf8cursor to normalize a string. + * Returns 0 on success. + * Returns -1 on failure. + */ +extern int utf8cursor(struct utf8cursor *, utf8data_t, const char *); +extern int utf8ncursor(struct utf8cursor *, utf8data_t, const char *, size_t); + +/* + * Get the next byte in the normalization. + * Returns a value > 0 && < 256 on success. + * Returns 0 when the end of the normalization is reached. + * Returns -1 if the string being normalized is not valid UTF-8. + */ +extern int utf8byte(struct utf8cursor *); + +#endif /* UTF8NORM_H */ -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:16:30 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id DBE7A7F37 for ; Thu, 18 Sep 2014 15:16:29 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id 37B04AC002; Thu, 18 Sep 2014 13:16:29 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id D16C24266DC; Thu, 18 Sep 2014 15:16:28 -0500 (CDT) Date: Thu, 18 Sep 2014 15:16:28 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 08/10] xfs: add xfs_nameops for utf8 and utf8+casefold. Message-ID: <20140918201628.GK4482@sgi.com> References: <20140918195650.GI19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918195650.GI19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber The xfs_utf8_nameops use the nfkdi normalization when comparing filenames, and are installed if the utf8bit is set in the super block. The xfs_utf8_ci_nameops use the nfkdicf normalization when comparing filenames, and are installed if both the utf8bit and the borgbit are set in the superblock. Normalized filenames are not stored on disk. Normalization will fail if a filename is not valid UTF-8, in which case the filename is treated as an opaque blob. Signed-off-by: Olaf Weber --- [v2: updated to use utf8norm.ko module; compiled conditionally on CONFIG_XFS_UTF8=y; utf8version is now a function; move xfs_utf8.[ch] into libxfs. --bpm] --- fs/xfs/Makefile | 2 + fs/xfs/libxfs/xfs_dir2.c | 24 ++++- fs/xfs/libxfs/xfs_utf8.c | 242 +++++++++++++++++++++++++++++++++++++++++++++++ fs/xfs/libxfs/xfs_utf8.h | 25 +++++ fs/xfs/xfs_iops.c | 2 +- 5 files changed, 290 insertions(+), 5 deletions(-) create mode 100644 fs/xfs/libxfs/xfs_utf8.c create mode 100644 fs/xfs/libxfs/xfs_utf8.h diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile index 6d000d3..5a4dfa0 100644 --- a/fs/xfs/Makefile +++ b/fs/xfs/Makefile @@ -114,6 +114,8 @@ xfs-$(CONFIG_XFS_QUOTA) += xfs_dquot.o \ xfs_qm.o \ xfs_quotaops.o +xfs-$(CONFIG_XFS_UTF8) += libxfs/xfs_utf8.o + # xfs_rtbitmap is shared with libxfs xfs-$(CONFIG_XFS_RT) += xfs_rtalloc.o diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c index 84e5ca9..e28736b 100644 --- a/fs/xfs/libxfs/xfs_dir2.c +++ b/fs/xfs/libxfs/xfs_dir2.c @@ -35,6 +35,7 @@ #include "xfs_error.h" #include "xfs_trace.h" #include "xfs_dinode.h" +#include "xfs_utf8.h" struct xfs_name xfs_name_dotdot = { (unsigned char *)"..", 2, XFS_DIR3_FT_DIR }; @@ -156,10 +157,25 @@ xfs_da_mount( (uint)sizeof(xfs_da_node_entry_t); dageo->magicpct = (dageo->blksize * 37) / 100; - if (xfs_sb_version_hasasciici(&mp->m_sb)) - mp->m_dirnameops = &xfs_ascii_ci_nameops; - else - mp->m_dirnameops = &xfs_default_nameops; + if (xfs_sb_version_hasutf8(&mp->m_sb)) { +#ifdef CONFIG_XFS_UTF8 + if (xfs_sb_version_hasasciici(&mp->m_sb)) + mp->m_dirnameops = &xfs_utf8_ci_nameops; + else + mp->m_dirnameops = &xfs_utf8_nameops; +#else + xfs_warn(mp, + "Recompile XFS with CONFIG_XFS_UTF8 to mount this filesystem"); + kmem_free(mp->m_dir_geo); + kmem_free(mp->m_attr_geo); + return -ENOSYS; +#endif + } else { + if (xfs_sb_version_hasasciici(&mp->m_sb)) + mp->m_dirnameops = &xfs_ascii_ci_nameops; + else + mp->m_dirnameops = &xfs_default_nameops; + } return 0; } diff --git a/fs/xfs/libxfs/xfs_utf8.c b/fs/xfs/libxfs/xfs_utf8.c new file mode 100644 index 0000000..1e64c44 --- /dev/null +++ b/fs/xfs/libxfs/xfs_utf8.c @@ -0,0 +1,242 @@ +/* + * Copyright (c) 2014 SGI. + * 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 "xfs.h" +#include "xfs_fs.h" +#include "xfs_types.h" +#include "xfs_bit.h" +#include "xfs_log_format.h" +#include "xfs_inum.h" +#include "xfs_trans.h" +#include "xfs_trans_resv.h" +#include "xfs_sb.h" +#include "xfs_ag.h" +#include "xfs_da_format.h" +#include "xfs_da_btree.h" +#include "xfs_dir2.h" +#include "xfs_mount.h" +#include "xfs_da_btree.h" +#include "xfs_format.h" +#include "xfs_bmap_btree.h" +#include "xfs_alloc_btree.h" +#include "xfs_dinode.h" +#include "xfs_inode.h" +#include "xfs_inode_item.h" +#include "xfs_bmap.h" +#include "xfs_error.h" +#include "xfs_trace.h" +#include "xfs_utf8.h" +#include + +/* + * xfs nameops using nfkdi + */ + +static xfs_dahash_t +xfs_utf8_hashname( + const unsigned char *name, + int len) +{ + utf8data_t nfkdi; + struct utf8cursor u8c; + xfs_dahash_t hash; + int val; + + nfkdi = utf8nfkdi(utf8version()); + hash = 0; + if (utf8ncursor(&u8c, nfkdi, name, len) < 0) + goto blob; + while ((val = utf8byte(&u8c)) > 0) + hash = val ^ rol32(hash, 7); + /* In case of error treat the name as a binary blob. */ + if (val == 0) + return hash; +blob: + return xfs_da_hashname(name, len); +} + +static int +xfs_utf8_normhash( + struct xfs_da_args *args) +{ + utf8data_t nfkdi; + struct utf8cursor u8c; + unsigned char *norm; + ssize_t normlen; + int c; + + nfkdi = utf8nfkdi(utf8version()); + /* Failure to normalize is treated as a blob. */ + if ((normlen = utf8nlen(nfkdi, args->name, args->namelen)) < 0) + goto blob; + if (utf8ncursor(&u8c, nfkdi, args->name, args->namelen) < 0) + goto blob; + if (!(norm = kmem_alloc(normlen + 1, KM_NOFS|KM_MAYFAIL))) + return -ENOMEM; + args->norm = norm; + args->normlen = normlen; + while ((c = utf8byte(&u8c)) > 0) + *norm++ = c; + if (c == 0) { + *norm = '\0'; + args->hashval = xfs_da_hashname(args->norm, args->normlen); + return 0; + } + kmem_free(args->norm); +blob: + args->norm = NULL; + args->normlen = -1; + args->hashval = xfs_da_hashname(args->name, args->namelen); + return 0; +} + +static enum xfs_dacmp +xfs_utf8_compname( + struct xfs_da_args *args, + const unsigned char *name, + int len) +{ + utf8data_t nfkdi; + struct utf8cursor u8c; + const unsigned char *norm; + int c; + + ASSERT(args->norm || args->normlen == -1); + + /* Check for an exact match first. */ + if (args->namelen == len && memcmp(args->name, name, len) == 0) + return XFS_CMP_EXACT; + /* xfs_utf8_normhash() set args->normlen to -1 for a blob */ + if (args->normlen < 0) + return XFS_CMP_DIFFERENT; + nfkdi = utf8nfkdi(utf8version()); + if (utf8ncursor(&u8c, nfkdi, name, len) < 0) + return XFS_CMP_DIFFERENT; + norm = args->norm; + while ((c = utf8byte(&u8c)) > 0) + if (c != *norm++) + return XFS_CMP_DIFFERENT; + if (c < 0 || *norm != '\0') + return XFS_CMP_DIFFERENT; + return XFS_CMP_MATCH; +} + +struct xfs_nameops xfs_utf8_nameops = { + .hashname = xfs_utf8_hashname, + .normhash = xfs_utf8_normhash, + .compname = xfs_utf8_compname, +}; + +/* + * xfs nameops using nfkdicf + */ + +static xfs_dahash_t +xfs_utf8_ci_hashname( + const unsigned char *name, + int len) +{ + utf8data_t nfkdicf; + struct utf8cursor u8c; + xfs_dahash_t hash; + int val; + + nfkdicf = utf8nfkdicf(utf8version()); + hash = 0; + if (utf8ncursor(&u8c, nfkdicf, name, len) < 0) + goto blob; + while ((val = utf8byte(&u8c)) > 0) + hash = val ^ rol32(hash, 7); + /* In case of error treat the name as a binary blob. */ + if (val == 0) + return hash; +blob: + return xfs_da_hashname(name, len); +} + +static int +xfs_utf8_ci_normhash( + struct xfs_da_args *args) +{ + utf8data_t nfkdicf; + struct utf8cursor u8c; + unsigned char *norm; + ssize_t normlen; + int c; + + nfkdicf = utf8nfkdicf(utf8version()); + /* Failure to normalize is treated as a blob. */ + if ((normlen = utf8nlen(nfkdicf, args->name, args->namelen)) < 0) + goto blob; + if (utf8ncursor(&u8c, nfkdicf, args->name, args->namelen) < 0) + goto blob; + if (!(norm = kmem_alloc(normlen + 1, KM_NOFS|KM_MAYFAIL))) + return -ENOMEM; + args->norm = norm; + args->normlen = normlen; + while ((c = utf8byte(&u8c)) > 0) + *norm++ = c; + if (c == 0) { + *norm = '\0'; + args->hashval = xfs_da_hashname(args->norm, args->normlen); + return 0; + } + kmem_free(args->norm); +blob: + args->norm = NULL; + args->normlen = -1; + args->hashval = xfs_da_hashname(args->name, args->namelen); + return 0; +} + +static enum xfs_dacmp +xfs_utf8_ci_compname( + struct xfs_da_args *args, + const unsigned char *name, + int len) +{ + utf8data_t nfkdicf; + struct utf8cursor u8c; + const unsigned char *norm; + int c; + + ASSERT(args->norm || args->normlen == -1); + + /* Check for an exact match first. */ + if (args->namelen == len && memcmp(args->name, name, len) == 0) + return XFS_CMP_EXACT; + /* xfs_utf8_ci_normhash() set args->normlen to -1 for a blob */ + if (args->normlen < 0) + return XFS_CMP_DIFFERENT; + nfkdicf = utf8nfkdicf(utf8version()); + if (utf8ncursor(&u8c, nfkdicf, name, len) < 0) + return XFS_CMP_DIFFERENT; + norm = args->norm; + while ((c = utf8byte(&u8c)) > 0) + if (c != *norm++) + return XFS_CMP_DIFFERENT; + if (c < 0 || *norm != '\0') + return XFS_CMP_DIFFERENT; + return XFS_CMP_MATCH; +} + +struct xfs_nameops xfs_utf8_ci_nameops = { + .hashname = xfs_utf8_ci_hashname, + .normhash = xfs_utf8_ci_normhash, + .compname = xfs_utf8_ci_compname, +}; diff --git a/fs/xfs/libxfs/xfs_utf8.h b/fs/xfs/libxfs/xfs_utf8.h new file mode 100644 index 0000000..97b6a91 --- /dev/null +++ b/fs/xfs/libxfs/xfs_utf8.h @@ -0,0 +1,25 @@ +/* + * Copyright (c) 2014 SGI. + * 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_UTF8_H +#define XFS_UTF8_H + +extern struct xfs_nameops xfs_utf8_nameops; +extern struct xfs_nameops xfs_utf8_ci_nameops; + +#endif /* XFS_UTF8_H */ diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index cea3d64..fbfb1bb 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -1257,7 +1257,7 @@ xfs_setup_inode( break; case S_IFDIR: lockdep_set_class(&ip->i_lock.mr_lock, &xfs_dir_ilock_class); - if (xfs_sb_version_hasasciici(&XFS_M(inode->i_sb)->m_sb)) + if (xfs_sb_version_hasci(&XFS_M(inode->i_sb)->m_sb)) inode->i_op = &xfs_dir_ci_inode_operations; else inode->i_op = &xfs_dir_inode_operations; -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:17:47 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id DDEAF7F37 for ; Thu, 18 Sep 2014 15:17:47 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id 625508F804B; Thu, 18 Sep 2014 13:17:47 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 2F5644266DC; Thu, 18 Sep 2014 15:17:47 -0500 (CDT) Date: Thu, 18 Sep 2014 15:17:47 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 09/10] xfs: apply utf-8 normalization rules to user extended attribute names Message-ID: <20140918201747.GL4482@sgi.com> References: <20140918195650.GI19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918195650.GI19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Apply the same rules for UTF-8 normalization to the names of user-defined extended attributes. System attributes are excluded because they are not user-visible in the first place, and the kernel is expected to know what it is doing when naming them. Signed-off-by: Olaf Weber --- fs/xfs/libxfs/xfs_attr.c | 56 ++++++++++++++++++++++++++++++++++++------- fs/xfs/libxfs/xfs_attr_leaf.c | 11 +++++++-- fs/xfs/libxfs/xfs_utf8.c | 7 ++++++ fs/xfs/xfs_attr_list.c | 11 ++++++++- 4 files changed, 74 insertions(+), 11 deletions(-) diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c index 353fb42..68e7ce3 100644 --- a/fs/xfs/libxfs/xfs_attr.c +++ b/fs/xfs/libxfs/xfs_attr.c @@ -83,12 +83,14 @@ xfs_attr_args_init( const unsigned char *name, int flags) { + struct xfs_mount *mp = dp->i_mount; + int error; if (!name) return -EINVAL; memset(args, 0, sizeof(*args)); - args->geo = dp->i_mount->m_attr_geo; + args->geo = mp->m_attr_geo; args->whichfork = XFS_ATTR_FORK; args->dp = dp; args->flags = flags; @@ -97,7 +99,11 @@ xfs_attr_args_init( if (args->namelen >= MAXNAMELEN) return -EFAULT; /* match IRIX behaviour */ - args->hashval = xfs_da_hashname(args->name, args->namelen); + if (!xfs_sb_version_hasutf8(&mp->m_sb)) + args->hashval = xfs_da_hashname(args->name, args->namelen); + else if ((error = mp->m_dirnameops->normhash(args)) != 0) + return error; + return 0; } @@ -154,6 +160,9 @@ xfs_attr_get( error = xfs_attr_node_get(&args); xfs_iunlock(ip, lock_mode); + if (args.norm) + kmem_free(args.norm); + *valuelenp = args.valuelen; return error == -EEXIST ? 0 : error; } @@ -216,8 +225,11 @@ xfs_attr_set( return -EIO; error = xfs_attr_args_init(&args, dp, name, flags); - if (error) + if (error) { + if (args.norm) + kmem_free(args.norm); return error; + } args.value = value; args.valuelen = valuelen; @@ -227,8 +239,11 @@ xfs_attr_set( args.total = xfs_attr_calc_size(&args, &local); error = xfs_qm_dqattach(dp, 0); - if (error) + if (error) { + if (args.norm) + kmem_free(args.norm); return error; + } /* * If the inode doesn't have an attribute fork, add one. @@ -239,8 +254,11 @@ xfs_attr_set( XFS_ATTR_SF_ENTSIZE_BYNAME(args.namelen, valuelen); error = xfs_bmap_add_attrfork(dp, sf_size, rsvd); - if (error) + if (error) { + if (args.norm) + kmem_free(args.norm); return error; + } } /* @@ -270,6 +288,8 @@ xfs_attr_set( error = xfs_trans_reserve(args.trans, &tres, args.total, 0); if (error) { xfs_trans_cancel(args.trans, 0); + if (args.norm) + kmem_free(args.norm); return error; } xfs_ilock(dp, XFS_ILOCK_EXCL); @@ -280,6 +300,8 @@ xfs_attr_set( if (error) { xfs_iunlock(dp, XFS_ILOCK_EXCL); xfs_trans_cancel(args.trans, XFS_TRANS_RELEASE_LOG_RES); + if (args.norm) + kmem_free(args.norm); return error; } @@ -327,6 +349,8 @@ xfs_attr_set( XFS_TRANS_RELEASE_LOG_RES); xfs_iunlock(dp, XFS_ILOCK_EXCL); + if (args.norm) + kmem_free(args.norm); return error ? error : err2; } @@ -388,7 +412,8 @@ xfs_attr_set( xfs_trans_log_inode(args.trans, dp, XFS_ILOG_CORE); error = xfs_trans_commit(args.trans, XFS_TRANS_RELEASE_LOG_RES); xfs_iunlock(dp, XFS_ILOCK_EXCL); - + if (args.norm) + kmem_free(args.norm); return error; out: @@ -397,6 +422,8 @@ out: XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT); } xfs_iunlock(dp, XFS_ILOCK_EXCL); + if (args.norm) + kmem_free(args.norm); return error; } @@ -425,8 +452,11 @@ xfs_attr_remove( return -ENOATTR; error = xfs_attr_args_init(&args, dp, name, flags); - if (error) + if (error) { + if (args.norm) + kmem_free(args.norm); return error; + } args.firstblock = &firstblock; args.flist = &flist; @@ -439,8 +469,11 @@ xfs_attr_remove( args.op_flags = XFS_DA_OP_OKNOENT; error = xfs_qm_dqattach(dp, 0); - if (error) + if (error) { + if (args.norm) + kmem_free(args.norm); return error; + } /* * Start our first transaction of the day. @@ -466,6 +499,8 @@ xfs_attr_remove( XFS_ATTRRM_SPACE_RES(mp), 0); if (error) { xfs_trans_cancel(args.trans, 0); + if (args.norm) + kmem_free(args.norm); return error; } @@ -506,6 +541,8 @@ xfs_attr_remove( xfs_trans_log_inode(args.trans, dp, XFS_ILOG_CORE); error = xfs_trans_commit(args.trans, XFS_TRANS_RELEASE_LOG_RES); xfs_iunlock(dp, XFS_ILOCK_EXCL); + if (args.norm) + kmem_free(args.norm); return error; @@ -515,6 +552,9 @@ out: XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT); } xfs_iunlock(dp, XFS_ILOCK_EXCL); + if (args.norm) + kmem_free(args.norm); + return error; } diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c index b1f73db..c991a88 100644 --- a/fs/xfs/libxfs/xfs_attr_leaf.c +++ b/fs/xfs/libxfs/xfs_attr_leaf.c @@ -661,6 +661,7 @@ int xfs_attr_shortform_to_leaf(xfs_da_args_t *args) { xfs_inode_t *dp; + struct xfs_mount *mp; xfs_attr_shortform_t *sf; xfs_attr_sf_entry_t *sfe; xfs_da_args_t nargs; @@ -673,6 +674,7 @@ xfs_attr_shortform_to_leaf(xfs_da_args_t *args) trace_xfs_attr_sf_to_leaf(args); dp = args->dp; + mp = dp->i_mount; ifp = dp->i_afp; sf = (xfs_attr_shortform_t *)ifp->if_u1.if_data; size = be16_to_cpu(sf->hdr.totsize); @@ -726,13 +728,18 @@ xfs_attr_shortform_to_leaf(xfs_da_args_t *args) nargs.namelen = sfe->namelen; nargs.value = &sfe->nameval[nargs.namelen]; nargs.valuelen = sfe->valuelen; - nargs.hashval = xfs_da_hashname(sfe->nameval, - sfe->namelen); nargs.flags = XFS_ATTR_NSP_ONDISK_TO_ARGS(sfe->flags); + if (!xfs_sb_version_hasutf8(&mp->m_sb)) + nargs.hashval = xfs_da_hashname(sfe->nameval, + sfe->namelen); + else if ((error = mp->m_dirnameops->normhash(&nargs)) != 0) + goto out; error = xfs_attr3_leaf_lookup_int(bp, &nargs); /* set a->index */ ASSERT(error == -ENOATTR); error = xfs_attr3_leaf_add(bp, &nargs); ASSERT(error != -ENOSPC); + if (nargs.norm) + kmem_free(nargs.norm); if (error) goto out; sfe = XFS_ATTR_SF_NEXTENTRY(sfe); diff --git a/fs/xfs/libxfs/xfs_utf8.c b/fs/xfs/libxfs/xfs_utf8.c index 1e64c44..75f2b3a 100644 --- a/fs/xfs/libxfs/xfs_utf8.c +++ b/fs/xfs/libxfs/xfs_utf8.c @@ -38,6 +38,7 @@ #include "xfs_inode.h" #include "xfs_inode_item.h" #include "xfs_bmap.h" +#include "xfs_attr.h" #include "xfs_error.h" #include "xfs_trace.h" #include "xfs_utf8.h" @@ -80,6 +81,9 @@ xfs_utf8_normhash( ssize_t normlen; int c; + /* Don't normalize system attribute names. */ + if (args->flags & (ATTR_ROOT|ATTR_SECURE)) + goto blob; nfkdi = utf8nfkdi(utf8version()); /* Failure to normalize is treated as a blob. */ if ((normlen = utf8nlen(nfkdi, args->name, args->namelen)) < 0) @@ -179,6 +183,9 @@ xfs_utf8_ci_normhash( ssize_t normlen; int c; + /* Don't normalize system attribute names. */ + if (args->flags & (ATTR_ROOT|ATTR_SECURE)) + goto blob; nfkdicf = utf8nfkdicf(utf8version()); /* Failure to normalize is treated as a blob. */ if ((normlen = utf8nlen(nfkdicf, args->name, args->namelen)) < 0) diff --git a/fs/xfs/xfs_attr_list.c b/fs/xfs/xfs_attr_list.c index 62db83a..4075d54 100644 --- a/fs/xfs/xfs_attr_list.c +++ b/fs/xfs/xfs_attr_list.c @@ -76,12 +76,14 @@ xfs_attr_shortform_list(xfs_attr_list_context_t *context) xfs_attr_shortform_t *sf; xfs_attr_sf_entry_t *sfe; xfs_inode_t *dp; + struct xfs_mount *mp; int sbsize, nsbuf, count, i; int error; ASSERT(context != NULL); dp = context->dp; ASSERT(dp != NULL); + mp = dp->i_mount; ASSERT(dp->i_afp != NULL); sf = (xfs_attr_shortform_t *)dp->i_afp->if_u1.if_data; ASSERT(sf != NULL); @@ -154,7 +156,14 @@ xfs_attr_shortform_list(xfs_attr_list_context_t *context) } sbp->entno = i; - sbp->hash = xfs_da_hashname(sfe->nameval, sfe->namelen); + /* ATTR_ROOT and ATTR_SECURE are never normalized. */ + if (!xfs_sb_version_hasutf8(&mp->m_sb) || + (sfe->flags & (ATTR_ROOT|ATTR_SECURE))) { + sbp->hash = xfs_da_hashname(sfe->nameval, sfe->namelen); + } else { + sbp->hash = mp->m_dirnameops->hashname(sfe->nameval, + sfe->namelen); + } sbp->name = sfe->nameval; sbp->namelen = sfe->namelen; /* These are bytes, and both on-disk, don't endian-flip */ -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:18:44 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id EF6417F37 for ; Thu, 18 Sep 2014 15:18:43 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6D205AC003; Thu, 18 Sep 2014 13:18:43 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 19F4E4266DC; Thu, 18 Sep 2014 15:18:43 -0500 (CDT) Date: Thu, 18 Sep 2014 15:18:43 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 10/10] xfs: implement demand load of utf8norm.ko Message-ID: <20140918201843.GM4482@sgi.com> References: <20140918195650.GI19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918195650.GI19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Ben Myers The utf8 normalization module is large and there is no need to have it loaded unless an xfs filesystem with utf8 enabled has been mounted. This loads utf8norm.ko at mount time for filesystems that need it. This is optional on CONFIG_XFS_UTF8_DEMAND_LOAD. Signed-off-by: Ben Myers --- fs/xfs/Kconfig | 10 +++++ fs/xfs/libxfs/xfs_dir2.c | 9 ++++ fs/xfs/libxfs/xfs_utf8.c | 104 +++++++++++++++++++++++++++++++++++++++++++++++ fs/xfs/libxfs/xfs_utf8.h | 5 +++ fs/xfs/xfs_super.c | 6 +++ 5 files changed, 134 insertions(+) diff --git a/fs/xfs/Kconfig b/fs/xfs/Kconfig index a847857..69efd85c 100644 --- a/fs/xfs/Kconfig +++ b/fs/xfs/Kconfig @@ -103,3 +103,13 @@ config XFS_UTF8 Say Y here to enable utf8 normalization support in XFS. You will be able to mount and use filesystems created with the utf8 mkfs.xfs option. + +config XFS_UTF8_DEMAND_LOAD + bool "XFS loads UTF-8 normalization module on demand" + depends on XFS_FS + depends on XFS_UTF8 + help + Say Y here to enable on demand loading of the utf8 + normalization module. This enables the large nomalization + module to remain unloaded until a filesystem with utf8 support + is mounted. diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c index e28736b..436738d 100644 --- a/fs/xfs/libxfs/xfs_dir2.c +++ b/fs/xfs/libxfs/xfs_dir2.c @@ -35,7 +35,9 @@ #include "xfs_error.h" #include "xfs_trace.h" #include "xfs_dinode.h" +#ifdef CONFIG_XFS_UTF8 #include "xfs_utf8.h" +#endif struct xfs_name xfs_name_dotdot = { (unsigned char *)"..", 2, XFS_DIR3_FT_DIR }; @@ -159,6 +161,13 @@ xfs_da_mount( if (xfs_sb_version_hasutf8(&mp->m_sb)) { #ifdef CONFIG_XFS_UTF8 +#ifdef CONFIG_XFS_UTF8_DEMAND_LOAD + if (xfs_init_utf8_module(mp)) { + kmem_free(mp->m_dir_geo); + kmem_free(mp->m_attr_geo); + return -ENOSYS; + } +#endif /* CONFIG_XFS_UTF8_DEMAND_LOAD */ if (xfs_sb_version_hasasciici(&mp->m_sb)) mp->m_dirnameops = &xfs_utf8_ci_nameops; else diff --git a/fs/xfs/libxfs/xfs_utf8.c b/fs/xfs/libxfs/xfs_utf8.c index 75f2b3a..71978c8 100644 --- a/fs/xfs/libxfs/xfs_utf8.c +++ b/fs/xfs/libxfs/xfs_utf8.c @@ -44,6 +44,110 @@ #include "xfs_utf8.h" #include +#ifdef CONFIG_XFS_UTF8_DEMAND_LOAD +#include + +static DEFINE_SPINLOCK(utf8norm_lock); +static int utf8norm_initialized; + +static const unsigned int (*utf8version_func)(void); +static utf8data_t (*utf8nfkdi_func)(unsigned int); +static utf8data_t (*utf8nfkdicf_func)(unsigned int); +static ssize_t (*utf8nlen_func)(utf8data_t, const char *, size_t); +static int (*utf8ncursor_func)(struct utf8cursor *, utf8data_t, + const char *, size_t); +static int (*utf8byte_func)(struct utf8cursor *); + +static void +xfs_put_utf8_module_locked(void) +{ + if (utf8version_func) + symbol_put(utf8version); + + if (utf8nfkdi_func) + symbol_put(utf8nfkdi); + + if (utf8nfkdicf_func) + symbol_put(utf8nfkdicf); + + if (utf8nlen_func) + symbol_put(utf8nlen); + + if (utf8ncursor_func) + symbol_put(utf8ncursor); + + if (utf8byte_func) + symbol_put(utf8byte); +} + +void +xfs_put_utf8_module(void) +{ + spin_lock(&utf8norm_lock); + if (!utf8norm_initialized) { + spin_unlock(&utf8norm_lock); + return; + } + xfs_put_utf8_module_locked(); + spin_unlock(&utf8norm_lock); +} + +int +xfs_init_utf8_module(struct xfs_mount *mp) +{ + request_module("utf8norm"); + + spin_lock(&utf8norm_lock); + if (utf8norm_initialized) { + spin_unlock(&utf8norm_lock); + return 0; + } + + utf8version_func = symbol_get(utf8version); + if (!utf8version_func) + goto error; + + utf8nfkdi_func = symbol_get(utf8nfkdi); + if (!utf8nfkdi_func) + goto error; + + utf8nfkdicf_func = symbol_get(utf8nfkdicf); + if (!utf8nfkdicf_func) + goto error; + + utf8nlen_func = symbol_get(utf8nlen); + if (!utf8nlen_func) + goto error; + + utf8ncursor_func = symbol_get(utf8ncursor); + if (!utf8ncursor_func) + goto error; + + utf8byte_func = symbol_get(utf8byte); + if (!utf8byte_func) + goto error; + + utf8norm_initialized = 1; + spin_unlock(&utf8norm_lock); + return 0; +error: + xfs_put_utf8_module_locked(); + spin_unlock(&utf8norm_lock); + xfs_warn(mp, + "Failed to load utf8norm.ko which is required to " + "mount a filesystem with utf8 support."); + return -ENOSYS; +} + +#define utf8version (*utf8version_func) +#define utf8nfkdi (*utf8nfkdi_func) +#define utf8nfkdicf (*utf8nfkdicf_func) +#define utf8nlen (*utf8nlen_func) +#define utf8ncursor (*utf8ncursor_func) +#define utf8byte (*utf8byte_func) + +#endif /* CONFIG_XFS_UTF8_DEMAND_LOAD */ + /* * xfs nameops using nfkdi */ diff --git a/fs/xfs/libxfs/xfs_utf8.h b/fs/xfs/libxfs/xfs_utf8.h index 97b6a91..9d1125a 100644 --- a/fs/xfs/libxfs/xfs_utf8.h +++ b/fs/xfs/libxfs/xfs_utf8.h @@ -22,4 +22,9 @@ extern struct xfs_nameops xfs_utf8_nameops; extern struct xfs_nameops xfs_utf8_ci_nameops; +#ifdef CONFIG_XFS_UTF8_DEMAND_LOAD +extern int xfs_init_utf8_module(struct xfs_mount *); +extern void xfs_put_utf8_module(void); +#endif + #endif /* XFS_UTF8_H */ diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index b194652..050a949 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -47,6 +47,9 @@ #include "xfs_dinode.h" #include "xfs_filestream.h" #include "xfs_quota.h" +#ifdef CONFIG_XFS_UTF8_DEMAND_LOAD +#include "xfs_utf8.h" +#endif #include #include @@ -1809,6 +1812,9 @@ exit_xfs_fs(void) xfs_mru_cache_uninit(); xfs_destroy_workqueues(); xfs_destroy_zones(); +#ifdef CONFIG_XFS_UTF8_DEMAND_LOAD + xfs_put_utf8_module(); +#endif } module_init(init_xfs_fs); -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:31:15 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 0ACF17F37 for ; Thu, 18 Sep 2014 15:31:15 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id 8A82CAC003; Thu, 18 Sep 2014 13:31:14 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 3C5744266DC; Thu, 18 Sep 2014 15:31:14 -0500 (CDT) Date: Thu, 18 Sep 2014 15:31:14 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 00/13] xfsprogs: Unicode/UTF-8 support for XFS Message-ID: <20140918203114.GN4482@sgi.com> References: <20140918195650.GI19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918195650.GI19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) Hi, Here is the xfsprogs portion of the Unicode/UTF-8 support. A number of the patches in libxfs correspond with kernel patches previously posted, and then there are patches to add support to mkfs, xfs_info, xfs_repair, and a test. (Note that the Unicode character database files have also been removed here due to their size.) Thanks, Ben From bpm@sgi.com Thu Sep 18 15:33:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 8B7A87F37 for ; Thu, 18 Sep 2014 15:33:17 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay2.corp.sgi.com (Postfix) with ESMTP id 58D77304032; Thu, 18 Sep 2014 13:33:17 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 207A94266DC; Thu, 18 Sep 2014 15:33:17 -0500 (CDT) Date: Thu, 18 Sep 2014 15:33:17 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 01/13] libxfs: return the first match during case-insensitive lookup Message-ID: <20140918203317.GO4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140918203114.GN4482@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918203114.GN4482@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Change the XFS case-insensitive lookup code to return the first match found, even if it is not an exact match. Whether a filesystem uses case-insensitive lookups is determined by a superblock bit set during filesystem creation. This means that normal use cannot create two files that both match the same filename. Signed-off-by: Olaf Weber --- libxfs/xfs_dir2_block.c | 17 ++++------- libxfs/xfs_dir2_leaf.c | 38 ++++------------------- libxfs/xfs_dir2_node.c | 80 ++++++++++++++++++------------------------------- libxfs/xfs_dir2_sf.c | 8 ++--- 4 files changed, 44 insertions(+), 99 deletions(-) diff --git a/libxfs/xfs_dir2_block.c b/libxfs/xfs_dir2_block.c index cede01f..2880431 100644 --- a/libxfs/xfs_dir2_block.c +++ b/libxfs/xfs_dir2_block.c @@ -705,28 +705,21 @@ xfs_dir2_block_lookup_int( dep = (xfs_dir2_data_entry_t *) ((char *)hdr + xfs_dir2_dataptr_to_off(mp, addr)); /* - * Compare name and if it's an exact match, return the index - * and buffer. If it's the first case-insensitive match, store - * the index and buffer and continue looking for an exact match. + * Compare name and if it's a match, return the + * index and buffer. */ cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen); - if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { + if (cmp != XFS_CMP_DIFFERENT) { args->cmpresult = cmp; *bpp = bp; *entno = mid; - if (cmp == XFS_CMP_EXACT) - return 0; + return 0; } } while (++mid < be32_to_cpu(btp->count) && be32_to_cpu(blp[mid].hashval) == hash); ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); - /* - * Here, we can only be doing a lookup (not a rename or replace). - * If a case-insensitive match was found earlier, return success. - */ - if (args->cmpresult == XFS_CMP_CASE) - return 0; + ASSERT(args->cmpresult == XFS_CMP_DIFFERENT); /* * No match, release the buffer and return ENOENT. */ diff --git a/libxfs/xfs_dir2_leaf.c b/libxfs/xfs_dir2_leaf.c index 8e0cbc9..b1901d3 100644 --- a/libxfs/xfs_dir2_leaf.c +++ b/libxfs/xfs_dir2_leaf.c @@ -1246,7 +1246,6 @@ xfs_dir2_leaf_lookup_int( xfs_mount_t *mp; /* filesystem mount point */ xfs_dir2_db_t newdb; /* new data block number */ xfs_trans_t *tp; /* transaction pointer */ - xfs_dir2_db_t cidb = -1; /* case match data block no. */ enum xfs_dacmp cmp; /* name compare result */ struct xfs_dir2_leaf_entry *ents; struct xfs_dir3_icleaf_hdr leafhdr; @@ -1307,47 +1306,22 @@ xfs_dir2_leaf_lookup_int( dep = (xfs_dir2_data_entry_t *)((char *)dbp->b_addr + xfs_dir2_dataptr_to_off(mp, be32_to_cpu(lep->address))); /* - * Compare name and if it's an exact match, return the index - * and buffer. If it's the first case-insensitive match, store - * the index and buffer and continue looking for an exact match. + * Compare name and if it's a match, return the index + * and buffer. */ cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen); - if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { + if (cmp != XFS_CMP_DIFFERENT) { args->cmpresult = cmp; *indexp = index; - /* case exact match: return the current buffer. */ - if (cmp == XFS_CMP_EXACT) { - *dbpp = dbp; - return 0; - } - cidb = curdb; + *dbpp = dbp; + return 0; } } ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); - /* - * Here, we can only be doing a lookup (not a rename or remove). - * If a case-insensitive match was found earlier, re-read the - * appropriate data block if required and return it. - */ - if (args->cmpresult == XFS_CMP_CASE) { - ASSERT(cidb != -1); - if (cidb != curdb) { - xfs_trans_brelse(tp, dbp); - error = xfs_dir3_data_read(tp, dp, - xfs_dir2_db_to_da(mp, cidb), - -1, &dbp); - if (error) { - xfs_trans_brelse(tp, lbp); - return error; - } - } - *dbpp = dbp; - return 0; - } + ASSERT(args->cmpresult == XFS_CMP_DIFFERENT); /* * No match found, return ENOENT. */ - ASSERT(cidb == -1); if (dbp) xfs_trans_brelse(tp, dbp); xfs_trans_brelse(tp, lbp); diff --git a/libxfs/xfs_dir2_node.c b/libxfs/xfs_dir2_node.c index 3737e4e..fb27506 100644 --- a/libxfs/xfs_dir2_node.c +++ b/libxfs/xfs_dir2_node.c @@ -702,6 +702,7 @@ xfs_dir2_leafn_lookup_for_entry( xfs_dir2_db_t curdb = -1; /* current data block number */ xfs_dir2_data_entry_t *dep; /* data block entry */ xfs_inode_t *dp; /* incore directory inode */ + int di = -1; /* data entry index */ int error; /* error return value */ int index; /* leaf entry index */ xfs_dir2_leaf_t *leaf; /* leaf structure */ @@ -733,6 +734,7 @@ xfs_dir2_leafn_lookup_for_entry( if (state->extravalid) { curbp = state->extrablk.bp; curdb = state->extrablk.blkno; + di = state->extrablk.index; } /* * Loop over leaf entries with the right hash value. @@ -757,27 +759,20 @@ xfs_dir2_leafn_lookup_for_entry( */ if (newdb != curdb) { /* - * If we had a block before that we aren't saving - * for a CI name, drop it + * If we had a block, drop it */ - if (curbp && (args->cmpresult == XFS_CMP_DIFFERENT || - curdb != state->extrablk.blkno)) + if (curbp) { xfs_trans_brelse(tp, curbp); + di = -1; + } /* - * If needing the block that is saved with a CI match, - * use it otherwise read in the new data block. + * Read in the new data block. */ - if (args->cmpresult != XFS_CMP_DIFFERENT && - newdb == state->extrablk.blkno) { - ASSERT(state->extravalid); - curbp = state->extrablk.bp; - } else { - error = xfs_dir3_data_read(tp, dp, - xfs_dir2_db_to_da(mp, newdb), - -1, &curbp); - if (error) - return error; - } + error = xfs_dir3_data_read(tp, dp, + xfs_dir2_db_to_da(mp, newdb), + -1, &curbp); + if (error) + return error; xfs_dir3_data_check(dp, curbp); curdb = newdb; } @@ -787,53 +782,36 @@ xfs_dir2_leafn_lookup_for_entry( dep = (xfs_dir2_data_entry_t *)((char *)curbp->b_addr + xfs_dir2_dataptr_to_off(mp, be32_to_cpu(lep->address))); /* - * Compare the entry and if it's an exact match, return - * EEXIST immediately. If it's the first case-insensitive - * match, store the block & inode number and continue looking. + * Compare the entry and if it's a match, return + * EEXIST immediately. */ cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen); - if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { - /* If there is a CI match block, drop it */ - if (args->cmpresult != XFS_CMP_DIFFERENT && - curdb != state->extrablk.blkno) - xfs_trans_brelse(tp, state->extrablk.bp); + if (cmp != XFS_CMP_DIFFERENT) { args->cmpresult = cmp; args->inumber = be64_to_cpu(dep->inumber); args->filetype = xfs_dir3_dirent_get_ftype(mp, dep); - *indexp = index; - state->extravalid = 1; - state->extrablk.bp = curbp; - state->extrablk.blkno = curdb; - state->extrablk.index = (int)((char *)dep - - (char *)curbp->b_addr); - state->extrablk.magic = XFS_DIR2_DATA_MAGIC; - curbp->b_ops = &xfs_dir3_data_buf_ops; - xfs_trans_buf_set_type(tp, curbp, XFS_BLFT_DIR_DATA_BUF); - if (cmp == XFS_CMP_EXACT) - return XFS_ERROR(EEXIST); + error = EEXIST; + goto out; } } + /* Didn't find a match */ + error = ENOENT; ASSERT(index == leafhdr.count || (args->op_flags & XFS_DA_OP_OKNOENT)); +out: if (curbp) { - if (args->cmpresult == XFS_CMP_DIFFERENT) { - /* Giving back last used data block. */ - state->extravalid = 1; - state->extrablk.bp = curbp; - state->extrablk.index = -1; - state->extrablk.blkno = curdb; - state->extrablk.magic = XFS_DIR2_DATA_MAGIC; - curbp->b_ops = &xfs_dir3_data_buf_ops; - xfs_trans_buf_set_type(tp, curbp, XFS_BLFT_DIR_DATA_BUF); - } else { - /* If the curbp is not the CI match block, drop it */ - if (state->extrablk.bp != curbp) - xfs_trans_brelse(tp, curbp); - } + /* Giving back last used data block. */ + state->extravalid = 1; + state->extrablk.bp = curbp; + state->extrablk.index = di; + state->extrablk.blkno = curdb; + state->extrablk.magic = XFS_DIR2_DATA_MAGIC; + curbp->b_ops = &xfs_dir3_data_buf_ops; + xfs_trans_buf_set_type(tp, curbp, XFS_BLFT_DIR_DATA_BUF); } else { state->extravalid = 0; } *indexp = index; - return XFS_ERROR(ENOENT); + return XFS_ERROR(error); } /* diff --git a/libxfs/xfs_dir2_sf.c b/libxfs/xfs_dir2_sf.c index 7580333..7b01d43 100644 --- a/libxfs/xfs_dir2_sf.c +++ b/libxfs/xfs_dir2_sf.c @@ -833,13 +833,12 @@ xfs_dir2_sf_lookup( for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count; i++, sfep = xfs_dir3_sf_nextentry(dp->i_mount, sfp, sfep)) { /* - * Compare name and if it's an exact match, return the inode - * number. If it's the first case-insensitive match, store the - * inode number and continue looking for an exact match. + * Compare name and if it's a match, return the inode + * number. */ cmp = dp->i_mount->m_dirnameops->compname(args, sfep->name, sfep->namelen); - if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { + if (cmp != XFS_CMP_DIFFERENT) { args->cmpresult = cmp; args->inumber = xfs_dir3_sfe_get_ino(dp->i_mount, sfp, sfep); @@ -848,6 +847,7 @@ xfs_dir2_sf_lookup( if (cmp == XFS_CMP_EXACT) return XFS_ERROR(EEXIST); ci_sfep = sfep; + break; } } ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:33:53 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E3B8B7F37 for ; Thu, 18 Sep 2014 15:33:53 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay2.corp.sgi.com (Postfix) with ESMTP id AAD83304032; Thu, 18 Sep 2014 13:33:53 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 7DE754266DC; Thu, 18 Sep 2014 15:33:53 -0500 (CDT) Date: Thu, 18 Sep 2014 15:33:53 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 02/13] libxfs: rename XFS_CMP_CASE to XFS_CMP_MATCH Message-ID: <20140918203353.GP4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140918203114.GN4482@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918203114.GN4482@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Rename XFS_CMP_CASE to XFS_CMP_MATCH. With unicode filenames and normalization, different strings will match on other criteria than case insensitivity. Signed-off-by: Olaf Weber --- include/xfs_da_btree.h | 2 +- libxfs/xfs_dir2.c | 9 ++++++--- libxfs/xfs_dir2_node.c | 2 +- 3 files changed, 8 insertions(+), 5 deletions(-) diff --git a/include/xfs_da_btree.h b/include/xfs_da_btree.h index e492dca..3d9f9dd 100644 --- a/include/xfs_da_btree.h +++ b/include/xfs_da_btree.h @@ -34,7 +34,7 @@ struct zone; enum xfs_dacmp { XFS_CMP_DIFFERENT, /* names are completely different */ XFS_CMP_EXACT, /* names are exactly the same */ - XFS_CMP_CASE /* names are same but differ in case */ + XFS_CMP_MATCH /* names are same but differ in encoding */ }; /* diff --git a/libxfs/xfs_dir2.c b/libxfs/xfs_dir2.c index 4c8c836..57e98a3 100644 --- a/libxfs/xfs_dir2.c +++ b/libxfs/xfs_dir2.c @@ -72,7 +72,7 @@ xfs_ascii_ci_compname( continue; if (tolower(args->name[i]) != tolower(name[i])) return XFS_CMP_DIFFERENT; - result = XFS_CMP_CASE; + result = XFS_CMP_MATCH; } return result; @@ -248,8 +248,11 @@ xfs_dir_cilookup_result( { if (args->cmpresult == XFS_CMP_DIFFERENT) return ENOENT; - if (args->cmpresult != XFS_CMP_CASE || - !(args->op_flags & XFS_DA_OP_CILOOKUP)) + if (args->cmpresult == XFS_CMP_EXACT) + return EEXIST; + ASSERT(args->cmpresult == XFS_CMP_MATCH); + /* Only dup the found name if XFS_DA_OP_CILOOKUP is set. */ + if (!(args->op_flags & XFS_DA_OP_CILOOKUP)) return EEXIST; args->value = kmem_alloc(len, KM_NOFS | KM_MAYFAIL); diff --git a/libxfs/xfs_dir2_node.c b/libxfs/xfs_dir2_node.c index fb27506..550ca99 100644 --- a/libxfs/xfs_dir2_node.c +++ b/libxfs/xfs_dir2_node.c @@ -2034,7 +2034,7 @@ xfs_dir2_node_lookup( error = xfs_da3_node_lookup_int(state, &rval); if (error) rval = error; - else if (rval == ENOENT && args->cmpresult == XFS_CMP_CASE) { + else if (rval == ENOENT && args->cmpresult == XFS_CMP_MATCH) { /* If a CI match, dup the actual name and return EEXIST */ xfs_dir2_data_entry_t *dep; -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:34:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id BB2CA7F37 for ; Thu, 18 Sep 2014 15:34:39 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay2.corp.sgi.com (Postfix) with ESMTP id 8953B304032; Thu, 18 Sep 2014 13:34:39 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 4AFD84266DC; Thu, 18 Sep 2014 15:34:39 -0500 (CDT) Date: Thu, 18 Sep 2014 15:34:39 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 03/13] libxfs: add xfs_nameops.normhash Message-ID: <20140918203439.GQ4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140918203114.GN4482@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918203114.GN4482@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Add a normhash callout to the xfs_nameops. This callout takes an xfs_da_args structure as its argument, and calculates a hash value over the name. It may in the process create a normalized form of the name, and assign that to the norm/normlen fields in the xfs_da_args structure. Changes: The pointer in kmem_free() was type converted to suppress compiler warnings. Signed-off-by: Olaf Weber --- include/xfs_da_btree.h | 5 ++++- libxfs/xfs_da_btree.c | 9 ++++++++ libxfs/xfs_dir2.c | 56 +++++++++++++++++++++++++++++++++++++++----------- 3 files changed, 57 insertions(+), 13 deletions(-) diff --git a/include/xfs_da_btree.h b/include/xfs_da_btree.h index 3d9f9dd..06b50bf 100644 --- a/include/xfs_da_btree.h +++ b/include/xfs_da_btree.h @@ -42,7 +42,9 @@ enum xfs_dacmp { */ typedef struct xfs_da_args { const __uint8_t *name; /* string (maybe not NULL terminated) */ - int namelen; /* length of string (maybe no NULL) */ + const __uint8_t *norm; /* normalized name (may be NULL) */ + int namelen; /* length of string (maybe no NULL) */ + int normlen; /* length of normalized name */ __uint8_t filetype; /* filetype of inode for directories */ __uint8_t *value; /* set of bytes (maybe contain NULLs) */ int valuelen; /* length of value */ @@ -131,6 +133,7 @@ typedef struct xfs_da_state { */ struct xfs_nameops { xfs_dahash_t (*hashname)(struct xfs_name *); + int (*normhash)(struct xfs_da_args *); enum xfs_dacmp (*compname)(struct xfs_da_args *, const unsigned char *, int); }; diff --git a/libxfs/xfs_da_btree.c b/libxfs/xfs_da_btree.c index b731b54..eb97317 100644 --- a/libxfs/xfs_da_btree.c +++ b/libxfs/xfs_da_btree.c @@ -2000,8 +2000,17 @@ xfs_default_hashname( return xfs_da_hashname(name->name, name->len); } +STATIC int +xfs_da_normhash( + struct xfs_da_args *args) +{ + args->hashval = xfs_da_hashname(args->name, args->namelen); + return 0; +} + const struct xfs_nameops xfs_default_nameops = { .hashname = xfs_default_hashname, + .normhash = xfs_da_normhash, .compname = xfs_da_compname }; diff --git a/libxfs/xfs_dir2.c b/libxfs/xfs_dir2.c index 57e98a3..e52d082 100644 --- a/libxfs/xfs_dir2.c +++ b/libxfs/xfs_dir2.c @@ -54,6 +54,21 @@ xfs_ascii_ci_hashname( return hash; } +STATIC int +xfs_ascii_ci_normhash( + struct xfs_da_args *args) +{ + xfs_dahash_t hash; + int i; + + for (i = 0, hash = 0; i < args->namelen; i++) + hash = tolower(args->name[i]) ^ rol32(hash, 7); + + args->hashval = hash; + return 0; +} + + STATIC enum xfs_dacmp xfs_ascii_ci_compname( struct xfs_da_args *args, @@ -80,6 +95,7 @@ xfs_ascii_ci_compname( static struct xfs_nameops xfs_ascii_ci_nameops = { .hashname = xfs_ascii_ci_hashname, + .normhash = xfs_ascii_ci_normhash, .compname = xfs_ascii_ci_compname, }; @@ -211,7 +227,6 @@ xfs_dir_createname( args.name = name->name; args.namelen = name->len; args.filetype = name->type; - args.hashval = dp->i_mount->m_dirnameops->hashname(name); args.inumber = inum; args.dp = dp; args.firstblock = first; @@ -220,19 +235,24 @@ xfs_dir_createname( args.whichfork = XFS_DATA_FORK; args.trans = tp; args.op_flags = XFS_DA_OP_ADDNAME | XFS_DA_OP_OKNOENT; + if ((rval = dp->i_mount->m_dirnameops->normhash(&args))) + return rval; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) rval = xfs_dir2_sf_addname(&args); else if ((rval = xfs_dir2_isblock(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_block_addname(&args); else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_leaf_addname(&args); else rval = xfs_dir2_node_addname(&args); +out_free: + if (args.norm) + kmem_free((void *)args.norm); return rval; } @@ -289,22 +309,23 @@ xfs_dir_lookup( args.name = name->name; args.namelen = name->len; args.filetype = name->type; - args.hashval = dp->i_mount->m_dirnameops->hashname(name); args.dp = dp; args.whichfork = XFS_DATA_FORK; args.trans = tp; args.op_flags = XFS_DA_OP_OKNOENT; if (ci_name) args.op_flags |= XFS_DA_OP_CILOOKUP; + if ((rval = dp->i_mount->m_dirnameops->normhash(&args))) + return rval; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) rval = xfs_dir2_sf_lookup(&args); else if ((rval = xfs_dir2_isblock(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_block_lookup(&args); else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_leaf_lookup(&args); else @@ -318,6 +339,9 @@ xfs_dir_lookup( ci_name->len = args.valuelen; } } +out_free: + if (args.norm) + kmem_free((void *)args.norm); return rval; } @@ -345,7 +369,6 @@ xfs_dir_removename( args.name = name->name; args.namelen = name->len; args.filetype = name->type; - args.hashval = dp->i_mount->m_dirnameops->hashname(name); args.inumber = ino; args.dp = dp; args.firstblock = first; @@ -353,19 +376,24 @@ xfs_dir_removename( args.total = total; args.whichfork = XFS_DATA_FORK; args.trans = tp; + if ((rval = dp->i_mount->m_dirnameops->normhash(&args))) + return rval; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) rval = xfs_dir2_sf_removename(&args); else if ((rval = xfs_dir2_isblock(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_block_removename(&args); else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_leaf_removename(&args); else rval = xfs_dir2_node_removename(&args); +out_free: + if (args.norm) + kmem_free((void *)args.norm); return rval; } @@ -395,7 +423,6 @@ xfs_dir_replace( args.name = name->name; args.namelen = name->len; args.filetype = name->type; - args.hashval = dp->i_mount->m_dirnameops->hashname(name); args.inumber = inum; args.dp = dp; args.firstblock = first; @@ -403,19 +430,24 @@ xfs_dir_replace( args.total = total; args.whichfork = XFS_DATA_FORK; args.trans = tp; + if ((rval = dp->i_mount->m_dirnameops->normhash(&args))) + return rval; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) rval = xfs_dir2_sf_replace(&args); else if ((rval = xfs_dir2_isblock(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_block_replace(&args); else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) - return rval; + goto out_free; else if (v) rval = xfs_dir2_leaf_replace(&args); else rval = xfs_dir2_node_replace(&args); +out_free: + if (args.norm) + kmem_free((void *)args.norm); return rval; } -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:35:55 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D94787F37 for ; Thu, 18 Sep 2014 15:35:55 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id B61B18F8040; Thu, 18 Sep 2014 13:35:55 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 7D1DC4266DC; Thu, 18 Sep 2014 15:35:55 -0500 (CDT) Date: Thu, 18 Sep 2014 15:35:55 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 04/13] libxfs: change interface of xfs_nameops.normhash Message-ID: <20140918203555.GR4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140918203114.GN4482@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918203114.GN4482@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber With the introduction of the xfs_nameops.normhash callout, all uses of the hashname callout now occur in places where an xfs_name structure must be explicitly created just to match the parameter passing convention of this callout. Change the arguments to a const unsigned char * and int instead. Signed-off-by: Olaf Weber --- db/check.c | 6 ++---- include/xfs_da_btree.h | 2 +- libxfs/xfs_da_btree.c | 9 +-------- libxfs/xfs_dir2.c | 10 ++++++---- libxfs/xfs_dir2_block.c | 5 +---- libxfs/xfs_dir2_data.c | 6 ++---- repair/phase6.c | 2 +- 7 files changed, 14 insertions(+), 26 deletions(-) diff --git a/db/check.c b/db/check.c index 4fd9fd0..49359d7 100644 --- a/db/check.c +++ b/db/check.c @@ -2212,7 +2212,6 @@ process_data_dir_v2( int stale = 0; int tag_err; __be16 *tagp; - struct xfs_name xname; data = iocur_top->data; block = iocur_top->data; @@ -2323,9 +2322,8 @@ process_data_dir_v2( tag_err += be16_to_cpu(*tagp) != (char *)dep - (char *)data; addr = xfs_dir2_db_off_to_dataptr(mp, db, (char *)dep - (char *)data); - xname.name = dep->name; - xname.len = dep->namelen; - dir_hash_add(mp->m_dirnameops->hashname(&xname), addr); + dir_hash_add(mp->m_dirnameops->hashname(dep->name, + dep->namelen), addr); ptr += xfs_dir3_data_entsize(mp, dep->namelen); count++; lastfree = 0; diff --git a/include/xfs_da_btree.h b/include/xfs_da_btree.h index 06b50bf..9674bed 100644 --- a/include/xfs_da_btree.h +++ b/include/xfs_da_btree.h @@ -132,7 +132,7 @@ typedef struct xfs_da_state { * Name ops for directory and/or attr name operations */ struct xfs_nameops { - xfs_dahash_t (*hashname)(struct xfs_name *); + xfs_dahash_t (*hashname)(const unsigned char *, int); int (*normhash)(struct xfs_da_args *); enum xfs_dacmp (*compname)(struct xfs_da_args *, const unsigned char *, int); diff --git a/libxfs/xfs_da_btree.c b/libxfs/xfs_da_btree.c index eb97317..7be5eaf 100644 --- a/libxfs/xfs_da_btree.c +++ b/libxfs/xfs_da_btree.c @@ -1993,13 +1993,6 @@ xfs_da_compname( XFS_CMP_EXACT : XFS_CMP_DIFFERENT; } -static xfs_dahash_t -xfs_default_hashname( - struct xfs_name *name) -{ - return xfs_da_hashname(name->name, name->len); -} - STATIC int xfs_da_normhash( struct xfs_da_args *args) @@ -2009,7 +2002,7 @@ xfs_da_normhash( } const struct xfs_nameops xfs_default_nameops = { - .hashname = xfs_default_hashname, + .hashname = xfs_da_hashname, .normhash = xfs_da_normhash, .compname = xfs_da_compname }; diff --git a/libxfs/xfs_dir2.c b/libxfs/xfs_dir2.c index e52d082..1893931 100644 --- a/libxfs/xfs_dir2.c +++ b/libxfs/xfs_dir2.c @@ -43,13 +43,14 @@ const unsigned char xfs_mode_to_ftype[S_IFMT >> S_SHIFT] = { */ STATIC xfs_dahash_t xfs_ascii_ci_hashname( - struct xfs_name *name) + const unsigned char *name, + int len) { xfs_dahash_t hash; int i; - for (i = 0, hash = 0; i < name->len; i++) - hash = tolower(name->name[i]) ^ rol32(hash, 7); + for (i = 0, hash = 0; i < len; i++) + hash = tolower(name[i]) ^ rol32(hash, 7); return hash; } @@ -475,7 +476,8 @@ xfs_dir_canenter( args.name = name->name; args.namelen = name->len; args.filetype = name->type; - args.hashval = dp->i_mount->m_dirnameops->hashname(name); + args.hashval = dp->i_mount->m_dirnameops->hashname(name->name, + name->len); args.dp = dp; args.whichfork = XFS_DATA_FORK; args.trans = tp; diff --git a/libxfs/xfs_dir2_block.c b/libxfs/xfs_dir2_block.c index 2880431..1a8b5f5 100644 --- a/libxfs/xfs_dir2_block.c +++ b/libxfs/xfs_dir2_block.c @@ -1047,7 +1047,6 @@ xfs_dir2_sf_to_block( xfs_dir2_sf_hdr_t *sfp; /* shortform header */ __be16 *tagp; /* end of data entry */ xfs_trans_t *tp; /* transaction pointer */ - struct xfs_name name; struct xfs_ifork *ifp; trace_xfs_dir2_sf_to_block(args); @@ -1205,10 +1204,8 @@ xfs_dir2_sf_to_block( tagp = xfs_dir3_data_entry_tag_p(mp, dep); *tagp = cpu_to_be16((char *)dep - (char *)hdr); xfs_dir2_data_log_entry(tp, bp, dep); - name.name = sfep->name; - name.len = sfep->namelen; blp[2 + i].hashval = cpu_to_be32(mp->m_dirnameops-> - hashname(&name)); + hashname(sfep->name, sfep->namelen)); blp[2 + i].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(mp, (char *)dep - (char *)hdr)); offset = (int)((char *)(tagp + 1) - (char *)hdr); diff --git a/libxfs/xfs_dir2_data.c b/libxfs/xfs_dir2_data.c index dc9df4d..9b3f750 100644 --- a/libxfs/xfs_dir2_data.c +++ b/libxfs/xfs_dir2_data.c @@ -46,7 +46,6 @@ __xfs_dir3_data_check( xfs_mount_t *mp; /* filesystem mount point */ char *p; /* current data position */ int stale; /* count of stale leaves */ - struct xfs_name name; mp = bp->b_target->bt_mount; hdr = bp->b_addr; @@ -142,9 +141,8 @@ __xfs_dir3_data_check( addr = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk, (xfs_dir2_data_aoff_t) ((char *)dep - (char *)hdr)); - name.name = dep->name; - name.len = dep->namelen; - hash = mp->m_dirnameops->hashname(&name); + hash = mp->m_dirnameops-> + hashname(dep->name, dep->namelen); for (i = 0; i < be32_to_cpu(btp->count); i++) { if (be32_to_cpu(lep[i].address) == addr && be32_to_cpu(lep[i].hashval) == hash) diff --git a/repair/phase6.c b/repair/phase6.c index f13069f..f374fd0 100644 --- a/repair/phase6.c +++ b/repair/phase6.c @@ -195,7 +195,7 @@ dir_hash_add( dup = 0; if (!junk) { - hash = mp->m_dirnameops->hashname(&xname); + hash = mp->m_dirnameops->hashname(name, namelen); byhash = DIR_HASH_FUNC(hashtab, hash); /* -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:36:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 15F247F37 for ; Thu, 18 Sep 2014 15:36:39 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id D14418F804B; Thu, 18 Sep 2014 13:36:38 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 9DD544266DC; Thu, 18 Sep 2014 15:36:38 -0500 (CDT) Date: Thu, 18 Sep 2014 15:36:38 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 05/13] libxfs: add a superblock feature bit to indicate UTF-8 support. Message-ID: <20140918203638.GS4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140918203114.GN4482@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918203114.GN4482@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber When UTF-8 support is enabled, the xfs_dir_ci_inode_operations must be installed. Add xfs_sb_version_hasci(), which tests both the borgbit and the utf8bit, and returns true if at least one of them is set. Replace calls to xfs_sb_version_hasasciici() as needed. Signed-off-by: Olaf Weber --- include/xfs_fs.h | 2 +- include/xfs_sb.h | 25 ++++++++++++++++++++++++- 2 files changed, 25 insertions(+), 2 deletions(-) diff --git a/include/xfs_fs.h b/include/xfs_fs.h index 59c40fc..1be539d 100644 --- a/include/xfs_fs.h +++ b/include/xfs_fs.h @@ -239,7 +239,7 @@ typedef struct xfs_fsop_resblks { #define XFS_FSOP_GEOM_FLAGS_V5SB 0x8000 /* version 5 superblock */ #define XFS_FSOP_GEOM_FLAGS_FTYPE 0x10000 /* inode directory types */ #define XFS_FSOP_GEOM_FLAGS_FINOBT 0x20000 /* free inode btree */ - +#define XFS_FSOP_GEOM_FLAGS_UTF8 0x40000 /* utf8 filenames */ /* * Minimum and maximum sizes need for growth checks. diff --git a/include/xfs_sb.h b/include/xfs_sb.h index 950d1ea..5ac7f06 100644 --- a/include/xfs_sb.h +++ b/include/xfs_sb.h @@ -82,6 +82,8 @@ struct xfs_trans; #define XFS_SB_VERSION2_RESERVED4BIT 0x00000004 #define XFS_SB_VERSION2_ATTR2BIT 0x00000008 /* Inline attr rework */ #define XFS_SB_VERSION2_PARENTBIT 0x00000010 /* parent pointers */ +#define XFS_SB_VERSION2_PARENTBIT 0x00000010 /* parent pointers */ +#define XFS_SB_VERSION2_UTF8BIT 0x00000020 /* utf8 names */ #define XFS_SB_VERSION2_PROJID32BIT 0x00000080 /* 32 bit project id */ #define XFS_SB_VERSION2_CRCBIT 0x00000100 /* metadata CRCs */ #define XFS_SB_VERSION2_FTYPE 0x00000200 /* inode type in dir */ @@ -89,6 +91,7 @@ struct xfs_trans; #define XFS_SB_VERSION2_OKREALFBITS \ (XFS_SB_VERSION2_LAZYSBCOUNTBIT | \ XFS_SB_VERSION2_ATTR2BIT | \ + XFS_SB_VERSION2_UTF8BIT | \ XFS_SB_VERSION2_PROJID32BIT | \ XFS_SB_VERSION2_FTYPE) #define XFS_SB_VERSION2_OKSASHFBITS \ @@ -600,8 +603,10 @@ xfs_sb_has_ro_compat_feature( } #define XFS_SB_FEAT_INCOMPAT_FTYPE (1 << 0) /* filetype in dirent */ +#define XFS_SB_FEAT_INCOMPAT_UTF8 (1 << 1) /* utf-8 name support */ #define XFS_SB_FEAT_INCOMPAT_ALL \ - (XFS_SB_FEAT_INCOMPAT_FTYPE) + (XFS_SB_FEAT_INCOMPAT_FTYPE | \ + XFS_SB_FEAT_INCOMPAT_UTF8) #define XFS_SB_FEAT_INCOMPAT_UNKNOWN ~XFS_SB_FEAT_INCOMPAT_ALL static inline bool @@ -649,6 +654,24 @@ static inline int xfs_sb_version_hasfinobt(xfs_sb_t *sbp) (sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_FINOBT); } +static inline int xfs_sb_version_hasutf8(xfs_sb_t *sbp) +{ + return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 && + xfs_sb_has_incompat_feature(sbp, XFS_SB_FEAT_INCOMPAT_UTF8)) || + (xfs_sb_version_hasmorebits(sbp) && + (sbp->sb_features2 & XFS_SB_VERSION2_UTF8BIT)); +} + +/* + * Special case: there are a number of places where we need to test + * both the borgbit and the utf8bit, and take the same action if + * either of those is set. + */ +static inline int xfs_sb_version_hasci(xfs_sb_t *sbp) +{ + return xfs_sb_version_hasasciici(sbp) || xfs_sb_version_hasutf8(sbp); +} + /* * end of superblock version macros */ -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:37:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id D11817F37 for ; Thu, 18 Sep 2014 15:37:17 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id 5FE9CAC002; Thu, 18 Sep 2014 13:37:17 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 245C54266DC; Thu, 18 Sep 2014 15:37:17 -0500 (CDT) Date: Thu, 18 Sep 2014 15:37:17 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 06/13] xfsprogs: add unicode character database files Message-ID: <20140918203717.GT4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140918203114.GN4482@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918203114.GN4482@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Add files from the Unicode Character Database, version 7.0.0, to the source. A helper program that generates a trie used for normalization from these files is part of a separate commit. Signed-off-by: Olaf Weber --- [v2: removed large unicode files. download them as below. -bpm] cd support/ucd-7.0.0 wget http://www.unicode.org/Public/7.0.0/ucd/CaseFolding.txt wget http://www.unicode.org/Public/7.0.0/ucd/DerivedAge.txt wget http://www.unicode.org/Public/7.0.0/ucd/extracted/DerivedCombiningClass.txt wget http://www.unicode.org/Public/7.0.0/ucd/DerivedCoreProperties.txt wget http://www.unicode.org/Public/7.0.0/ucd/NormalizationCorrections.txt wget http://www.unicode.org/Public/7.0.0/ucd/NormalizationTest.txt wget http://www.unicode.org/Public/7.0.0/ucd/UnicodeData.txt --- support/ucd-7.0.0/README | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 support/ucd-7.0.0/README diff --git a/support/ucd-7.0.0/README b/support/ucd-7.0.0/README new file mode 100644 index 0000000..d713e66 --- /dev/null +++ b/support/ucd-7.0.0/README @@ -0,0 +1,33 @@ +The files in this directory are part of the Unicode Character Database +for version 7.0.0 of the Unicode standard. + +The full set of files can be found here: + + http://www.unicode.org/Public/7.0.0/ucd/ + +The latest released version of the UCD can be found here: + + http://www.unicode.org/Public/UCD/latest/ + +The files in this directory are identical, except that they have been +renamed with a suffix indicating the unicode version. + +Individual source links: + + http://www.unicode.org/Public/7.0.0/ucd/CaseFolding.txt + http://www.unicode.org/Public/7.0.0/ucd/DerivedAge.txt + http://www.unicode.org/Public/7.0.0/ucd/extracted/DerivedCombiningClass.txt + http://www.unicode.org/Public/7.0.0/ucd/DerivedCoreProperties.txt + http://www.unicode.org/Public/7.0.0/ucd/NormalizationCorrections.txt + http://www.unicode.org/Public/7.0.0/ucd/NormalizationTest.txt + http://www.unicode.org/Public/7.0.0/ucd/UnicodeData.txt + +md5sums + + 9a92b2bfe56c6719def926bab524fefd CaseFolding-7.0.0.txt + 07b8b1027eb824cf0835314e94f23d2e DerivedAge-7.0.0.txt + 90c3340b16821e2f2153acdbe6fc6180 DerivedCombiningClass-7.0.0.txt + c41c0601f808116f623de47110ed4f93 DerivedCoreProperties-7.0.0.txt + 522720ddfc150d8e63a2518634829bce NormalizationCorrections-7.0.0.txt + 1f35175eba4a2ad795db489f789ae352 NormalizationTest-7.0.0.txt + c8355655731d75e6a3de8c20d7e601ba UnicodeData-7.0.0.txt -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:38:06 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD, T_FILL_THIS_FORM_SHORT autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2364E7F37 for ; Thu, 18 Sep 2014 15:38:06 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id DA2658F804B; Thu, 18 Sep 2014 13:38:05 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 364474266DC; Thu, 18 Sep 2014 15:38:05 -0500 (CDT) Date: Thu, 18 Sep 2014 15:38:05 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 07/13] libxfs: add trie generator and supporting code for UTF-8. Message-ID: <20140918203805.GU4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140918203114.GN4482@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918203114.GN4482@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber mkutf8data.c is the source for a program that generates utf8data.h, which contains the trie that utf8norm.c uses. The trie is generated from the Unicode 7.0.0 data files. The format of the utf8data[] table is described in utf8norm.c. Supporting functions for UTF-8 normalization are in utf8norm.c with the header utf8norm.h. Two normalization forms are supported: nfkdi and nfkdicf. nfkdi: - Apply unicode normalization form NFKD. - Remove any Default_Ignorable_Code_Point. nfkdicf: - Apply unicode normalization form NFKD. - Remove any Default_Ignorable_Code_Point. - Apply a full casefold (C + F). For the purposes of the code, a string is valid UTF-8 if: - The values encoded are 0x1..0x10FFFF. - The surrogate codepoints 0xD800..0xDFFFF are not encoded. - The shortest possible encoding is used for all values. The supporting functions work on null-terminated strings (utf8 prefix) and on length-limited strings (utf8n prefix). Signed-off-by: Olaf Weber --- include/utf8norm.h | 111 ++ libxfs/utf8norm.c | 628 ++++++++++ support/mkutf8data.c | 3232 ++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 3971 insertions(+) create mode 100644 include/utf8norm.h create mode 100644 libxfs/utf8norm.c create mode 100644 support/mkutf8data.c diff --git a/include/utf8norm.h b/include/utf8norm.h new file mode 100644 index 0000000..6aa3391 --- /dev/null +++ b/include/utf8norm.h @@ -0,0 +1,111 @@ +/* + * Copyright (c) 2014 SGI. + * 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 UTF8NORM_H +#define UTF8NORM_H + +/* An opaque type used to determine the normalization in use. */ +typedef const struct utf8data *utf8data_t; + +/* Encoding a unicode version number as a single unsigned int. */ +#define UNICODE_MAJ_SHIFT (16) +#define UNICODE_MIN_SHIFT (8) + +#define UNICODE_AGE(MAJ,MIN,REV) \ + (((unsigned int)(MAJ) << UNICODE_MAJ_SHIFT) | \ + ((unsigned int)(MIN) << UNICODE_MIN_SHIFT) | \ + ((unsigned int)(REV))) + +/* Highest unicode version supported by the data tables. */ +extern const unsigned int utf8version; + +/* + * Look for the correct utf8data_t for a unicode version. + * Returns NULL if the version requested is too new. + * + * Two normalization forms are supported: nfkdi and nfkdicf. + * + * nfkdi: + * - Apply unicode normalization form NFKD. + * - Remove any Default_Ignorable_Code_Point. + * + * nfkdicf: + * - Apply unicode normalization form NFKD. + * - Remove any Default_Ignorable_Code_Point. + * - Apply a full casefold (C + F). + */ +extern utf8data_t utf8nfkdi(unsigned int); +extern utf8data_t utf8nfkdicf(unsigned int); + +/* + * Determine the maximum age of any unicode character in the string. + * Returns 0 if only unassigned code points are present. + * Returns -1 if the input is not valid UTF-8. + */ +extern int utf8agemax(utf8data_t, const char *); +extern int utf8nagemax(utf8data_t, const char *, size_t); + +/* + * Determine the minimum age of any unicode character in the string. + * Returns 0 if any unassigned code points are present. + * Returns -1 if the input is not valid UTF-8. + */ +extern int utf8agemin(utf8data_t, const char *); +extern int utf8nagemin(utf8data_t, const char *, size_t); + +/* + * Determine the length of the normalized from of the string, + * excluding any terminating NULL byte. + * Returns 0 if only ignorable code points are present. + * Returns -1 if the input is not valid UTF-8. + */ +extern ssize_t utf8len(utf8data_t, const char *); +extern ssize_t utf8nlen(utf8data_t, const char *, size_t); + +/* + * Cursor structure used by the normalizer. + */ +struct utf8cursor { + utf8data_t data; + const char *s; + const char *p; + const char *ss; + const char *sp; + unsigned int len; + unsigned int slen; + short int ccc; + short int nccc; +}; + +/* + * Initialize a utf8cursor to normalize a string. + * Returns 0 on success. + * Returns -1 on failure. + */ +extern int utf8cursor(struct utf8cursor *, utf8data_t, const char *); +extern int utf8ncursor(struct utf8cursor *, utf8data_t, const char *, size_t); + +/* + * Get the next byte in the normalization. + * Returns a value > 0 && < 256 on success. + * Returns 0 when the end of the normalization is reached. + * Returns -1 if the string being normalized is not valid UTF-8. + */ +extern int utf8byte(struct utf8cursor *); + +#endif /* UTF8NORM_H */ diff --git a/libxfs/utf8norm.c b/libxfs/utf8norm.c new file mode 100644 index 0000000..6232d1a --- /dev/null +++ b/libxfs/utf8norm.c @@ -0,0 +1,628 @@ +/* + * Copyright (c) 2014 SGI. + * 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 "xfs.h" +#include "xfs_types.h" +#include + +struct utf8data { + unsigned int maxage; + unsigned int offset; +}; + +#define __INCLUDED_FROM_UTF8NORM_C__ +#include +#undef __INCLUDED_FROM_UTF8NORM_C__ + +/* + * UTF-8 valid ranges. + * + * The UTF-8 encoding spreads the bits of a 32bit word over several + * bytes. This table gives the ranges that can be held and how they'd + * be represented. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000000 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000000 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * There is an additional requirement on UTF-8, in that only the + * shortest representation of a 32bit value is to be used. A decoder + * must not decode sequences that do not satisfy this requirement. + * Thus the allowed ranges have a lower bound. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000080 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000800 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00010000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00200000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x04000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * Actual unicode characters are limited to the range 0x0 - 0x10FFFF, + * 17 planes of 65536 values. This limits the sequences actually seen + * even more, to just the following. + * + * 0 - 0x7F: 0 - 0x7F + * 0x80 - 0x7FF: 0xC2 0x80 - 0xDF 0xBF + * 0x800 - 0xFFFF: 0xE0 0xA0 0x80 - 0xEF 0xBF 0xBF + * 0x10000 - 0x10FFFF: 0xF0 0x90 0x80 0x80 - 0xF4 0x8F 0xBF 0xBF + * + * Within those ranges the surrogates 0xD800 - 0xDFFF are not allowed. + * + * Note that the longest sequence seen with valid usage is 4 bytes, + * the same a single UTF-32 character. This makes the UTF-8 + * representation of Unicode strictly smaller than UTF-32. + * + * The shortest sequence requirement was introduced by: + * Corrigendum #1: UTF-8 Shortest Form + * It can be found here: + * http://www.unicode.org/versions/corrigendum1.html + * + */ + +/* + * Return the number of bytes used by the current UTF-8 sequence. + * Assumes the input points to the first byte of a valid UTF-8 + * sequence. + */ +static inline int +utf8clen(const char *s) +{ + unsigned char c = *s; + return 1 + (c >= 0xC0) + (c >= 0xE0) + (c >= 0xF0); +} + +/* + * utf8trie_t + * + * A compact binary tree, used to decode UTF-8 characters. + * + * Internal nodes are one byte for the node itself, and up to three + * bytes for an offset into the tree. The first byte contains the + * following information: + * NEXTBYTE - flag - advance to next byte if set + * BITNUM - 3 bit field - the bit number to tested + * OFFLEN - 2 bit field - number of bytes in the offset + * if offlen == 0 (non-branching node) + * RIGHTPATH - 1 bit field - set if the following node is for the + * right-hand path (tested bit is set) + * TRIENODE - 1 bit field - set if the following node is an internal + * node, otherwise it is a leaf node + * if offlen != 0 (branching node) + * LEFTNODE - 1 bit field - set if the left-hand node is internal + * RIGHTNODE - 1 bit field - set if the right-hand node is internal + * + * Due to the way utf8 works, there cannot be branching nodes with + * NEXTBYTE set, and moreover those nodes always have a righthand + * descendant. + */ +typedef const unsigned char utf8trie_t; +#define BITNUM 0x07 +#define NEXTBYTE 0x08 +#define OFFLEN 0x30 +#define OFFLEN_SHIFT 4 +#define RIGHTPATH 0x40 +#define TRIENODE 0x80 +#define RIGHTNODE 0x40 +#define LEFTNODE 0x80 + +/* + * utf8leaf_t + * + * The leaves of the trie are embedded in the trie, and so the same + * underlying datatype: unsigned char. + * + * leaf[0]: The unicode version, stored as a generation number that is + * an index into utf8agetab[]. With this we can filter code + * points based on the unicode version in which they were + * defined. The CCC of a non-defined code point is 0. + * leaf[1]: Canonical Combining Class. During normalization, we need + * to do a stable sort into ascending order of all characters + * with a non-zero CCC that occur between two characters with + * a CCC of 0, or at the begin or end of a string. + * The unicode standard guarantees that all CCC values are + * between 0 and 254 inclusive, which leaves 255 available as + * a special value. + * Code points with CCC 0 are known as stoppers. + * leaf[2]: Decomposition. If leaf[1] == 255, then leaf[2] is the + * start of a NUL-terminated string that is the decomposition + * of the character. + * The CCC of a decomposable character is the same as the CCC + * of the first character of its decomposition. + * Some characters decompose as the empty string: these are + * characters with the Default_Ignorable_Code_Point property. + * These do affect normalization, as they all have CCC 0. + * + * The decompositions in the trie have been fully expanded. + * + * Casefolding, if applicable, is also done using decompositions. + * + * The trie is constructed in such a way that leaves exist for all + * UTF-8 sequences that match the criteria from the "UTF-8 valid + * ranges" comment above, and only for those sequences. Therefore a + * lookup in the trie can be used to validate the UTF-8 input. + */ +typedef const unsigned char utf8leaf_t; + +#define LEAF_GEN(LEAF) ((LEAF)[0]) +#define LEAF_CCC(LEAF) ((LEAF)[1]) +#define LEAF_STR(LEAF) ((const char*)((LEAF) + 2)) + +#define MINCCC (0) +#define MAXCCC (254) +#define STOPPER (0) +#define DECOMPOSE (255) + +/* + * Use trie to scan s, touching at most len bytes. + * Returns the leaf if one exists, NULL otherwise. + * + * A non-NULL return guarantees that the UTF-8 sequence starting at s + * is well-formed and corresponds to a known unicode code point. The + * shorthand for this will be "is valid UTF-8 unicode". + */ +static utf8leaf_t * +utf8nlookup(utf8data_t data, const char *s, size_t len) +{ + utf8trie_t *trie = utf8data + data->offset; + int offlen; + int offset; + int mask; + int node; + + if (!data) + return NULL; + if (len == 0) + return NULL; + node = 1; + while (node) { + offlen = (*trie & OFFLEN) >> OFFLEN_SHIFT; + if (*trie & NEXTBYTE) { + if (--len == 0) + return NULL; + s++; + } + mask = 1 << (*trie & BITNUM); + if (*s & mask) { + /* Right leg */ + if (offlen) { + /* Right node at offset of trie */ + node = (*trie & RIGHTNODE); + offset = trie[offlen]; + while (--offlen) { + offset <<= 8; + offset |= trie[offlen]; + } + trie += offset; + } else if (*trie & RIGHTPATH) { + /* Right node after this node */ + node = (*trie & TRIENODE); + trie++; + } else { + /* No right node. */ + node = 0; + trie = NULL; + } + } else { + /* Left leg */ + if (offlen) { + /* Left node after this node. */ + node = (*trie & LEFTNODE); + trie += offlen + 1; + } else if (*trie & RIGHTPATH) { + /* No left node. */ + node = 0; + trie = NULL; + } else { + /* Left node after this node */ + node = (*trie & TRIENODE); + trie++; + } + } + } + return trie; +} + +/* + * Use trie to scan s. + * Returns the leaf if one exists, NULL otherwise. + * + * Forwards to utf8nlookup(). + */ +static utf8leaf_t * +utf8lookup(utf8data_t data, const char *s) +{ + return utf8nlookup(data, s, (size_t)-1); +} + +/* + * Maximum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if only non-assigned code points are used. + */ +int +utf8agemax(utf8data_t data, const char *s) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!data) + return -1; + while (*s) { + if (!(leaf = utf8lookup(data, s))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age > age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} + +/* + * Minimum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if non-assigned code points are used. + */ +int +utf8agemin(utf8data_t data, const char *s) +{ + utf8leaf_t *leaf; + int age = data->maxage; + int leaf_age; + + if (!data) + return -1; + while (*s) { + if (!(leaf = utf8lookup(data, s))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age < age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemax(utf8data_t data, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!data) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(data, s, len))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age > age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemin(utf8data_t data, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int leaf_age; + int age = data->maxage; + + if (!data) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(data, s, len))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age < age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} + +/* + * Length of the normalization of s. + * Return -1 if s is not valid UTF-8 unicode. + * + * A string of Default_Ignorable_Code_Point has length 0. + */ +ssize_t +utf8len(utf8data_t data, const char *s) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!data) + return -1; + while (*s) { + if (!(leaf = utf8lookup(data, s))) + return -1; + if (utf8agetab[LEAF_GEN(leaf)] > data->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + s += utf8clen(s); + } + return ret; +} + +/* + * Length of the normalization of s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +ssize_t +utf8nlen(utf8data_t data, const char *s, size_t len) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!data) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(data, s, len))) + return -1; + if (utf8agetab[LEAF_GEN(leaf)] > data->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + len -= utf8clen(s); + s += utf8clen(s); + } + return ret; +} + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * u8c : pointer to cursor. + * data : utf8data_t to use for normalization. + * s : string. + * len : length of s. + * + * Returns -1 on error, 0 on success. + */ +int +utf8ncursor( + struct utf8cursor *u8c, + utf8data_t data, + const char *s, + size_t len) +{ + if (!data) + return -1; + if (!s) + return -1; + u8c->data = data; + u8c->s = s; + u8c->p = NULL; + u8c->ss = NULL; + u8c->sp = NULL; + u8c->len = len; + u8c->slen = 0; + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + /* Check we didn't clobber the maximum length. */ + if (u8c->len != len) + return -1; + /* The first byte of s may not be an utf8 continuation. */ + if (len > 0 && (*s & 0xC0) == 0x80) + return -1; + return 0; +} + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * u8c : pointer to cursor. + * data : utf8data_t to use for normalization. + * s : NUL-terminated string. + * + * Returns -1 on error, 0 on success. + */ +int +utf8cursor( + struct utf8cursor *u8c, + utf8data_t data, + const char *s) +{ + return utf8ncursor(u8c, data, s, (unsigned int)-1); +} + +/* + * Get one byte from the normalized form of the string described by u8c. + * + * Returns the byte cast to an unsigned char on succes, and -1 on failure. + * + * The cursor keeps track of the location in the string in u8c->s. + * When a character is decomposed, the current location is stored in + * u8c->p, and u8c->s is set to the start of the decomposition. Note + * that bytes from a decomposition do not count against u8c->len. + * + * Characters are emitted if they match the current CCC in u8c->ccc. + * Hitting end-of-string while u8c->ccc == STOPPER means we're done, + * and the function returns 0 in that case. + * + * Sorting by CCC is done by repeatedly scanning the string. The + * values of u8c->s and u8c->p are stored in u8c->ss and u8c->sp at + * the start of the scan. The first pass finds the lowest CCC to be + * emitted and stores it in u8c->nccc, the second pass emits the + * characters with this CCC and finds the next lowest CCC. This limits + * the number of passes to 1 + the number of different CCCs in the + * sequence being scanned. + * + * Therefore: + * u8c->p != NULL -> a decomposition is being scanned. + * u8c->ss != NULL -> this is a repeating scan. + * u8c->ccc == -1 -> this is the first scan of a repeating scan. + */ +int +utf8byte(struct utf8cursor *u8c) +{ + utf8leaf_t *leaf; + int ccc; + + for (;;) { + /* Check for the end of a decomposed character. */ + if (u8c->p && *u8c->s == '\0') { + u8c->s = u8c->p; + u8c->p = NULL; + } + + /* Check for end-of-string. */ + if (!u8c->p && (u8c->len == 0 || *u8c->s == '\0')) { + /* There is no next byte. */ + if (u8c->ccc == STOPPER) + return 0; + /* End-of-string during a scan counts as a stopper. */ + ccc = STOPPER; + goto ccc_mismatch; + } else if ((*u8c->s & 0xC0) == 0x80) { + /* This is a continuation of the current character. */ + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Look up the data for the current character. */ + if (u8c->p) + leaf = utf8lookup(u8c->data, u8c->s); + else + leaf = utf8nlookup(u8c->data, u8c->s, u8c->len); + + /* No leaf found implies that the input is a binary blob. */ + if (!leaf) + return -1; + + /* Characters that are too new have CCC 0. */ + if (utf8agetab[LEAF_GEN(leaf)] > u8c->data->maxage) { + ccc = STOPPER; + } else if ((ccc = LEAF_CCC(leaf)) == DECOMPOSE) { + u8c->len -= utf8clen(u8c->s); + u8c->p = u8c->s + utf8clen(u8c->s); + u8c->s = LEAF_STR(leaf); + /* Empty decomposition implies CCC 0. */ + if (*u8c->s == '\0') { + if (u8c->ccc == STOPPER) + continue; + ccc = STOPPER; + goto ccc_mismatch; + } + leaf = utf8lookup(u8c->data, u8c->s); + ccc = LEAF_CCC(leaf); + } + + /* + * If this is not a stopper, then see if it updates + * the next canonical class to be emitted. + */ + if (ccc != STOPPER && u8c->ccc < ccc && ccc < u8c->nccc) + u8c->nccc = ccc; + + /* + * Return the current byte if this is the current + * combining class. + */ + if (ccc == u8c->ccc) { + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Current combining class mismatch. */ + ccc_mismatch: + if (u8c->nccc == STOPPER) { + /* + * Scan forward for the first canonical class + * to be emitted. Save the position from + * which to restart. + */ + u8c->ccc = MINCCC - 1; + u8c->nccc = ccc; + u8c->sp = u8c->p; + u8c->ss = u8c->s; + u8c->slen = u8c->len; + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (ccc != STOPPER) { + /* Not a stopper, and not the ccc we're emitting. */ + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (u8c->nccc != MAXCCC + 1) { + /* At a stopper, restart for next ccc. */ + u8c->ccc = u8c->nccc; + u8c->nccc = MAXCCC + 1; + u8c->s = u8c->ss; + u8c->p = u8c->sp; + u8c->len = u8c->slen; + } else { + /* All done, proceed from here. */ + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + u8c->sp = NULL; + u8c->ss = NULL; + u8c->slen = 0; + } + } +} + +const struct utf8data * +utf8nfkdi(unsigned int maxage) +{ + int i = sizeof(utf8nfkdidata)/sizeof(utf8nfkdidata[0]) - 1; + + while (maxage < utf8nfkdidata[i].maxage) + i--; + if (maxage > utf8nfkdidata[i].maxage) + return NULL; + return &utf8nfkdidata[i]; +} + +const struct utf8data * +utf8nfkdicf(unsigned int maxage) +{ + int i = sizeof(utf8nfkdicfdata)/sizeof(utf8nfkdicfdata[0]) - 1; + + while (maxage < utf8nfkdicfdata[i].maxage) + i--; + if (maxage > utf8nfkdicfdata[i].maxage) + return NULL; + return &utf8nfkdicfdata[i]; +} diff --git a/support/mkutf8data.c b/support/mkutf8data.c new file mode 100644 index 0000000..e5c3507 --- /dev/null +++ b/support/mkutf8data.c @@ -0,0 +1,3232 @@ +/* + * Copyright (c) 2014 SGI. + * 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 + */ + +/* Generator for a compact trie for unicode normalization */ + +#include +#include +#include +#include +#include +#include +#include +#include + +/* Default names of the in- and output files. */ + +#define AGE_NAME "DerivedAge.txt" +#define CCC_NAME "DerivedCombiningClass.txt" +#define PROP_NAME "DerivedCoreProperties.txt" +#define DATA_NAME "UnicodeData.txt" +#define FOLD_NAME "CaseFolding.txt" +#define NORM_NAME "NormalizationCorrections.txt" +#define TEST_NAME "NormalizationTest.txt" +#define UTF8_NAME "utf8data.h" + +const char *age_name = AGE_NAME; +const char *ccc_name = CCC_NAME; +const char *prop_name = PROP_NAME; +const char *data_name = DATA_NAME; +const char *fold_name = FOLD_NAME; +const char *norm_name = NORM_NAME; +const char *test_name = TEST_NAME; +const char *utf8_name = UTF8_NAME; + +int verbose = 0; + +/* An arbitrary line size limit on input lines. */ + +#define LINESIZE 1024 +char line[LINESIZE]; +char buf0[LINESIZE]; +char buf1[LINESIZE]; +char buf2[LINESIZE]; +char buf3[LINESIZE]; + +const char *argv0; + +/* ------------------------------------------------------------------ */ + +/* + * Unicode version numbers consist of three parts: major, minor, and a + * revision. These numbers are packed into an unsigned int to obtain + * a single version number. + * + * To save space in the generated trie, the unicode version is not + * stored directly, instead we calculate a generation number from the + * unicode versions seen in the DerivedAge file, and use that as an + * index into a table of unicode versions. + */ +#define UNICODE_MAJ_SHIFT (16) +#define UNICODE_MIN_SHIFT (8) + +#define UNICODE_MAJ_MAX ((unsigned short)-1) +#define UNICODE_MIN_MAX ((unsigned char)-1) +#define UNICODE_REV_MAX ((unsigned char)-1) + +#define UNICODE_AGE(MAJ,MIN,REV) \ + (((unsigned int)(MAJ) << UNICODE_MAJ_SHIFT) | \ + ((unsigned int)(MIN) << UNICODE_MIN_SHIFT) | \ + ((unsigned int)(REV))) + +unsigned int *ages; +int ages_count; + +unsigned int unicode_maxage; + +static int +age_valid(unsigned int major, unsigned int minor, unsigned int revision) +{ + if (major > UNICODE_MAJ_MAX) + return 0; + if (minor > UNICODE_MIN_MAX) + return 0; + if (revision > UNICODE_REV_MAX) + return 0; + return 1; +} + +/* ------------------------------------------------------------------ */ + +/* + * utf8trie_t + * + * A compact binary tree, used to decode UTF-8 characters. + * + * Internal nodes are one byte for the node itself, and up to three + * bytes for an offset into the tree. The first byte contains the + * following information: + * NEXTBYTE - flag - advance to next byte if set + * BITNUM - 3 bit field - the bit number to tested + * OFFLEN - 2 bit field - number of bytes in the offset + * if offlen == 0 (non-branching node) + * RIGHTPATH - 1 bit field - set if the following node is for the + * right-hand path (tested bit is set) + * TRIENODE - 1 bit field - set if the following node is an internal + * node, otherwise it is a leaf node + * if offlen != 0 (branching node) + * LEFTNODE - 1 bit field - set if the left-hand node is internal + * RIGHTNODE - 1 bit field - set if the right-hand node is internal + * + * Due to the way utf8 works, there cannot be branching nodes with + * NEXTBYTE set, and moreover those nodes always have a righthand + * descendant. + */ +typedef unsigned char utf8trie_t; +#define BITNUM 0x07 +#define NEXTBYTE 0x08 +#define OFFLEN 0x30 +#define OFFLEN_SHIFT 4 +#define RIGHTPATH 0x40 +#define TRIENODE 0x80 +#define RIGHTNODE 0x40 +#define LEFTNODE 0x80 + +/* + * utf8leaf_t + * + * The leaves of the trie are embedded in the trie, and so the same + * underlying datatype, unsigned char. + * + * leaf[0]: The unicode version, stored as a generation number that is + * an index into utf8agetab[]. With this we can filter code + * points based on the unicode version in which they were + * defined. The CCC of a non-defined code point is 0. + * leaf[1]: Canonical Combining Class. During normalization, we need + * to do a stable sort into ascending order of all characters + * with a non-zero CCC that occur between two characters with + * a CCC of 0, or at the begin or end of a string. + * The unicode standard guarantees that all CCC values are + * between 0 and 254 inclusive, which leaves 255 available as + * a special value. + * Code points with CCC 0 are known as stoppers. + * leaf[2]: Decomposition. If leaf[1] == 255, then leaf[2] is the + * start of a NUL-terminated string that is the decomposition + * of the character. + * The CCC of a decomposable character is the same as the CCC + * of the first character of its decomposition. + * Some characters decompose as the empty string: these are + * characters with the Default_Ignorable_Code_Point property. + * These do affect normalization, as they all have CCC 0. + * + * The decompositions in the trie have been fully expanded. + * + * Casefolding, if applicable, is also done using decompositions. + */ +typedef unsigned char utf8leaf_t; + +#define LEAF_GEN(LEAF) ((LEAF)[0]) +#define LEAF_CCC(LEAF) ((LEAF)[1]) +#define LEAF_STR(LEAF) ((const char*)((LEAF) + 2)) + +#define MAXGEN (255) + +#define MINCCC (0) +#define MAXCCC (254) +#define STOPPER (0) +#define DECOMPOSE (255) + +struct tree; +static utf8leaf_t *utf8nlookup(struct tree *, const char *, size_t); +static utf8leaf_t *utf8lookup(struct tree *, const char *); + +unsigned char *utf8data; +size_t utf8data_size; + +utf8trie_t *nfkdi; +utf8trie_t *nfkdicf; + +/* ------------------------------------------------------------------ */ + +/* + * UTF8 valid ranges. + * + * The UTF-8 encoding spreads the bits of a 32bit word over several + * bytes. This table gives the ranges that can be held and how they'd + * be represented. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000000 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000000 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * There is an additional requirement on UTF-8, in that only the + * shortest representation of a 32bit value is to be used. A decoder + * must not decode sequences that do not satisfy this requirement. + * Thus the allowed ranges have a lower bound. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000080 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000800 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00010000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00200000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x04000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * Actual unicode characters are limited to the range 0x0 - 0x10FFFF, + * 17 planes of 65536 values. This limits the sequences actually seen + * even more, to just the following. + * + * 0 - 0x7f: 0 0x7f + * 0x80 - 0x7ff: 0xc2 0x80 0xdf 0xbf + * 0x800 - 0xffff: 0xe0 0xa0 0x80 0xef 0xbf 0xbf + * 0x10000 - 0x10ffff: 0xf0 0x90 0x80 0x80 0xf4 0x8f 0xbf 0xbf + * + * Even within those ranges not all values are allowed: the surrogates + * 0xd800 - 0xdfff should never be seen. + * + * Note that the longest sequence seen with valid usage is 4 bytes, + * the same a single UTF-32 character. This makes the UTF-8 + * representation of Unicode strictly smaller than UTF-32. + * + * The shortest sequence requirement was introduced by: + * Corrigendum #1: UTF-8 Shortest Form + * It can be found here: + * http://www.unicode.org/versions/corrigendum1.html + * + */ + +#define UTF8_2_BITS 0xC0 +#define UTF8_3_BITS 0xE0 +#define UTF8_4_BITS 0xF0 +#define UTF8_N_BITS 0x80 +#define UTF8_2_MASK 0xE0 +#define UTF8_3_MASK 0xF0 +#define UTF8_4_MASK 0xF8 +#define UTF8_N_MASK 0xC0 +#define UTF8_V_MASK 0x3F +#define UTF8_V_SHIFT 6 + +static int +utf8key(unsigned int key, char keyval[]) +{ + int keylen; + + if (key < 0x80) { + keyval[0] = key; + keylen = 1; + } else if (key < 0x800) { + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_2_BITS; + keylen = 2; + } else if (key < 0x10000) { + keyval[2] = key & UTF8_V_MASK; + keyval[2] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_3_BITS; + keylen = 3; + } else if (key < 0x110000) { + keyval[3] = key & UTF8_V_MASK; + keyval[3] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[2] = key & UTF8_V_MASK; + keyval[2] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_4_BITS; + keylen = 4; + } else { + printf("%#x: illegal key\n", key); + keylen = 0; + } + return keylen; +} + +static unsigned int +utf8code(const char *str) +{ + const unsigned char *s = (const unsigned char*)str; + unsigned int unichar = 0; + + if (*s < 0x80) { + unichar = *s; + } else if (*s < UTF8_3_BITS) { + unichar = *s++ & 0x1F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s & 0x3F; + } else if (*s < UTF8_4_BITS) { + unichar = *s++ & 0x0F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s++ & 0x3F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s & 0x3F; + } else { + unichar = *s++ & 0x0F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s++ & 0x3F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s++ & 0x3F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s & 0x3F; + } + return unichar; +} + +static int +utf32valid(unsigned int unichar) +{ + return unichar < 0x110000; +} + +#define NODE 1 +#define LEAF 0 + +struct tree { + void *root; + int childnode; + const char *type; + unsigned int maxage; + struct tree *next; + int (*leaf_equal)(void *, void *); + void (*leaf_print)(void *, int); + int (*leaf_mark)(void *); + int (*leaf_size)(void *); + int *(*leaf_index)(struct tree *, void *); + unsigned char *(*leaf_emit)(void *, unsigned char *); + int leafindex[0x110000]; + int index; +}; + +struct node { + int index; + int offset; + int mark; + int size; + struct node *parent; + void *left; + void *right; + unsigned char bitnum; + unsigned char nextbyte; + unsigned char leftnode; + unsigned char rightnode; + unsigned int keybits; + unsigned int keymask; +}; + +/* + * Example lookup function for a tree. + */ +static void * +lookup(struct tree *tree, const char *key) +{ + struct node *node; + void *leaf = NULL; + + node = tree->root; + while (!leaf && node) { + if (node->nextbyte) + key++; + if (*key & (1 << (node->bitnum & 7))) { + /* Right leg */ + if (node->rightnode == NODE) { + node = node->right; + } else if (node->rightnode == LEAF) { + leaf = node->right; + } else { + node = NULL; + } + } else { + /* Left leg */ + if (node->leftnode == NODE) { + node = node->left; + } else if (node->leftnode == LEAF) { + leaf = node->left; + } else { + node = NULL; + } + } + } + + return leaf; +} + +/* + * A simple non-recursive tree walker: keep track of visits to the + * left and right branches in the leftmask and rightmask. + */ +static void +tree_walk(struct tree *tree) +{ + struct node *node; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int indent = 1; + int nodes, singletons, leaves; + + nodes = singletons = leaves = 0; + + printf("%s_%x root %p\n", tree->type, tree->maxage, tree->root); + if (tree->childnode == LEAF) { + assert(tree->root); + tree->leaf_print(tree->root, indent); + leaves = 1; + } else { + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + printf("%*snode @ %p bitnum %d nextbyte %d" + " left %p right %p mask %x bits %x\n", + indent, "", node, + node->bitnum, node->nextbyte, + node->left, node->right, + node->keymask, node->keybits); + nodes += 1; + if (!(node->left && node->right)) + singletons += 1; + + while (node) { + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + tree->leaf_print(node->left, + indent+1); + leaves += 1; + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if ((rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + tree->leaf_print(node->right, + indent+1); + leaves += 1; + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + indent -= 1; + } + } + } + printf("nodes %d leaves %d singletons %d\n", + nodes, leaves, singletons); +} + +/* + * Allocate an initialize a new internal node. + */ +static struct node * +alloc_node(struct node *parent) +{ + struct node *node; + int bitnum; + + node = malloc(sizeof(*node)); + node->left = node->right = NULL; + node->parent = parent; + node->leftnode = NODE; + node->rightnode = NODE; + node->keybits = 0; + node->keymask = 0; + node->mark = 0; + node->index = 0; + node->offset = -1; + node->size = 4; + + if (node->parent) { + bitnum = parent->bitnum; + if ((bitnum & 7) == 0) { + node->bitnum = bitnum + 7 + 8; + node->nextbyte = 1; + } else { + node->bitnum = bitnum - 1; + node->nextbyte = 0; + } + } else { + node->bitnum = 7; + node->nextbyte = 0; + } + + return node; +} + +/* + * Insert a new leaf into the tree, and collapse any subtrees that are + * fully populated and end in identical leaves. A nextbyte tagged + * internal node will not be removed to preserve the tree's integrity. + * Note that due to the structure of utf8, no nextbyte tagged node + * will be a candidate for removal. + */ +static int +insert(struct tree *tree, char *key, int keylen, void *leaf) +{ + struct node *node; + struct node *parent; + void **cursor; + int keybits; + + assert(keylen >= 1 && keylen <= 4); + + node = NULL; + cursor = &tree->root; + keybits = 8 * keylen; + + /* Insert, creating path along the way. */ + while (keybits) { + if (!*cursor) + *cursor = alloc_node(node); + node = *cursor; + if (node->nextbyte) + key++; + if (*key & (1 << (node->bitnum & 7))) + cursor = &node->right; + else + cursor = &node->left; + keybits--; + } + *cursor = leaf; + + /* Merge subtrees if possible. */ + while (node) { + if (*key & (1 << (node->bitnum & 7))) + node->rightnode = LEAF; + else + node->leftnode = LEAF; + if (node->nextbyte) + break; + if (node->leftnode == NODE || node->rightnode == NODE) + break; + assert(node->left); + assert(node->right); + /* Compare */ + if (! tree->leaf_equal(node->left, node->right)) + break; + /* Keep left, drop right leaf. */ + leaf = node->left; + /* Check in parent */ + parent = node->parent; + if (!parent) { + /* root of tree! */ + tree->root = leaf; + tree->childnode = LEAF; + } else if (parent->left == node) { + parent->left = leaf; + parent->leftnode = LEAF; + if (parent->right) { + parent->keymask = 0; + parent->keybits = 0; + } else { + parent->keymask |= (1 << node->bitnum); + } + } else if (parent->right == node) { + parent->right = leaf; + parent->rightnode = LEAF; + if (parent->left) { + parent->keymask = 0; + parent->keybits = 0; + } else { + parent->keymask |= (1 << node->bitnum); + parent->keybits |= (1 << node->bitnum); + } + } else { + /* internal tree error */ + assert(0); + } + free(node); + node = parent; + } + + /* Propagate keymasks up along singleton chains. */ + while (node) { + parent = node->parent; + if (!parent) + break; + /* Nix the mask for parents with two children. */ + if (node->keymask == 0) { + parent->keymask = 0; + parent->keybits = 0; + } else if (parent->left && parent->right) { + parent->keymask = 0; + parent->keybits = 0; + } else { + assert((parent->keymask & node->keymask) == 0); + parent->keymask |= node->keymask; + parent->keymask |= (1 << parent->bitnum); + parent->keybits |= node->keybits; + if (parent->right) + parent->keybits |= (1 << parent->bitnum); + } + node = parent; + } + + return 0; +} + +/* + * Prune internal nodes. + * + * Fully populated subtrees that end at the same leaf have already + * been collapsed. There are still internal nodes that have for both + * their left and right branches a sequence of singletons that make + * identical choices and end in identical leaves. The keymask and + * keybits collected in the nodes describe the choices made in these + * singleton chains. When they are identical for the left and right + * branch of a node, and the two leaves comare identical, the node in + * question can be removed. + * + * Note that nodes with the nextbyte tag set will not be removed by + * this to ensure tree integrity. Note as well that the structure of + * utf8 ensures that these nodes would not have been candidates for + * removal in any case. + */ +static void +prune(struct tree *tree) +{ + struct node *node; + struct node *left; + struct node *right; + struct node *parent; + void *leftleaf; + void *rightleaf; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int count; + + if (verbose > 0) + printf("Pruning %s_%x\n", tree->type, tree->maxage); + + count = 0; + if (tree->childnode == LEAF) + return; + if (!tree->root) + return; + + leftmask = rightmask = 0; + node = tree->root; + while (node) { + if (node->nextbyte) + goto advance; + if (node->leftnode == LEAF) + goto advance; + if (node->rightnode == LEAF) + goto advance; + if (!node->left) + goto advance; + if (!node->right) + goto advance; + left = node->left; + right = node->right; + if (left->keymask == 0) + goto advance; + if (right->keymask == 0) + goto advance; + if (left->keymask != right->keymask) + goto advance; + if (left->keybits != right->keybits) + goto advance; + leftleaf = NULL; + while (!leftleaf) { + assert(left->left || left->right); + if (left->leftnode == LEAF) + leftleaf = left->left; + else if (left->rightnode == LEAF) + leftleaf = left->right; + else if (left->left) + left = left->left; + else if (left->right) + left = left->right; + else + assert(0); + } + rightleaf = NULL; + while (!rightleaf) { + assert(right->left || right->right); + if (right->leftnode == LEAF) + rightleaf = right->left; + else if (right->rightnode == LEAF) + rightleaf = right->right; + else if (right->left) + right = right->left; + else if (right->right) + right = right->right; + else + assert(0); + } + if (! tree->leaf_equal(leftleaf, rightleaf)) + goto advance; + /* + * This node has identical singleton-only subtrees. + * Remove it. + */ + parent = node->parent; + left = node->left; + right = node->right; + if (parent->left == node) + parent->left = left; + else if (parent->right == node) + parent->right = left; + else + assert(0); + left->parent = parent; + left->keymask |= (1 << node->bitnum); + node->left = NULL; + while (node) { + bitmask = 1 << node->bitnum; + leftmask &= ~bitmask; + rightmask &= ~bitmask; + if (node->leftnode == NODE && node->left) { + left = node->left; + free(node); + count++; + node = left; + } else if (node->rightnode == NODE && node->right) { + right = node->right; + free(node); + count++; + node = right; + } else { + node = NULL; + } + } + /* Propagate keymasks up along singleton chains. */ + node = parent; + /* Force re-check */ + bitmask = 1 << node->bitnum; + leftmask &= ~bitmask; + rightmask &= ~bitmask; + for (;;) { + if (node->left && node->right) + break; + if (node->left) { + left = node->left; + node->keymask |= left->keymask; + node->keybits |= left->keybits; + } + if (node->right) { + right = node->right; + node->keymask |= right->keymask; + node->keybits |= right->keybits; + } + node->keymask |= (1 << node->bitnum); + node = node->parent; + /* Force re-check */ + bitmask = 1 << node->bitnum; + leftmask &= ~bitmask; + rightmask &= ~bitmask; + } + advance: + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0 && + node->leftnode == NODE && + node->left) { + leftmask |= bitmask; + node = node->left; + } else if ((rightmask & bitmask) == 0 && + node->rightnode == NODE && + node->right) { + rightmask |= bitmask; + node = node->right; + } else { + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + } + } + if (verbose > 0) + printf("Pruned %d nodes\n", count); +} + +/* + * Mark the nodes in the tree that lead to leaves that must be + * emitted. + */ +static void +mark_nodes(struct tree *tree) +{ + struct node *node; + struct node *n; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int marked; + + marked = 0; + if (verbose > 0) + printf("Marking %s_%x\n", tree->type, tree->maxage); + if (tree->childnode == LEAF) + goto done; + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + if (tree->leaf_mark(node->left)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->left) { + assert(node->leftnode == NODE); + node = node->left; + continue; + } + } + if ((rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + if (tree->leaf_mark(node->right)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->right) { + assert(node->rightnode==NODE); + node = node->right; + continue; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + } + + /* second pass: left siblings and singletons */ + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + if (tree->leaf_mark(node->left)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->left) { + assert(node->leftnode == NODE); + node = node->left; + if (!node->mark && node->parent->mark) { + marked++; + node->mark = 1; + } + continue; + } + } + if ((rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + if (tree->leaf_mark(node->right)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->right) { + assert(node->rightnode==NODE); + node = node->right; + if (!node->mark && node->parent->mark && + !node->parent->left) { + marked++; + node->mark = 1; + } + continue; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + } +done: + if (verbose > 0) + printf("Marked %d nodes\n", marked); +} + +/* + * Compute the index of each node and leaf, which is the offset in the + * emitted trie. These value must be pre-computed because relative + * offsets between nodes are used to navigate the tree. + */ +static int +index_nodes(struct tree *tree, int index) +{ + struct node *node; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int count; + int indent; + + /* Align to a cache line (or half a cache line?). */ + while (index % 64) + index++; + tree->index = index; + indent = 1; + count = 0; + + if (verbose > 0) + printf("Indexing %s_%x: %d", tree->type, tree->maxage, index); + if (tree->childnode == LEAF) { + index += tree->leaf_size(tree->root); + goto done; + } + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + if (!node->mark) + goto skip; + count++; + if (node->index != index) + node->index = index; + index += node->size; +skip: + while (node) { + bitmask = 1 << node->bitnum; + if (node->mark && (leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + *tree->leaf_index(tree, node->left) = + index; + index += tree->leaf_size(node->left); + count++; + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if (node->mark && (rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + *tree->leaf_index(tree, node->right) = index; + index += tree->leaf_size(node->right); + count++; + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + indent -= 1; + } + } +done: + /* Round up to a multiple of 16 */ + while (index % 16) + index++; + if (verbose > 0) + printf("Final index %d\n", index); + return index; +} + +/* + * Compute the size of nodes and leaves. We start by assuming that + * each node needs to store a three-byte offset. The indexes of the + * nodes are calculated based on that, and then this function is + * called to see if the sizes of some nodes can be reduced. This is + * repeated until no more changes are seen. + */ +static int +size_nodes(struct tree *tree) +{ + struct tree *next; + struct node *node; + struct node *right; + struct node *n; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + unsigned int pathbits; + unsigned int pathmask; + int changed; + int offset; + int size; + int indent; + + indent = 1; + changed = 0; + size = 0; + + if (verbose > 0) + printf("Sizing %s_%x", tree->type, tree->maxage); + if (tree->childnode == LEAF) + goto done; + + assert(tree->childnode == NODE); + pathbits = 0; + pathmask = 0; + node = tree->root; + leftmask = rightmask = 0; + while (node) { + if (!node->mark) + goto skip; + offset = 0; + if (!node->left || !node->right) { + size = 1; + } else { + if (node->rightnode == NODE) { + right = node->right; + next = tree->next; + while (!right->mark) { + assert(next); + n = next->root; + while (n->bitnum != node->bitnum) { + if (pathbits & (1<bitnum)) + n = n->right; + else + n = n->left; + } + n = n->right; + assert(right->bitnum == n->bitnum); + right = n; + next = next->next; + } + offset = right->index - node->index; + } else { + offset = *tree->leaf_index(tree, node->right); + offset -= node->index; + } + assert(offset >= 0); + assert(offset <= 0xffffff); + if (offset <= 0xff) { + size = 2; + } else if (offset <= 0xffff) { + size = 3; + } else { /* offset <= 0xffffff */ + size = 4; + } + } + if (node->size != size || node->offset != offset) { + node->size = size; + node->offset = offset; + changed++; + } +skip: + while (node) { + bitmask = 1 << node->bitnum; + pathmask |= bitmask; + if (node->mark && (leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if (node->mark && (rightmask & bitmask) == 0) { + rightmask |= bitmask; + pathbits |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + pathmask &= ~bitmask; + pathbits &= ~bitmask; + node = node->parent; + indent -= 1; + } + } +done: + if (verbose > 0) + printf("Found %d changes\n", changed); + return changed; +} + +/* + * Emit a trie for the given tree into the data array. + */ +static void +emit(struct tree *tree, unsigned char *data) +{ + struct node *node; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int offlen; + int offset; + int index; + int indent; + unsigned char byte; + + index = tree->index; + data += index; + indent = 1; + if (verbose > 0) + printf("Emitting %s_%x\n", tree->type, tree->maxage); + if (tree->childnode == LEAF) { + assert(tree->root); + tree->leaf_emit(tree->root, data); + return; + } + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + if (!node->mark) + goto skip; + assert(node->offset != -1); + assert(node->index == index); + + byte = 0; + if (node->nextbyte) + byte |= NEXTBYTE; + byte |= (node->bitnum & BITNUM); + if (node->left && node->right) { + if (node->leftnode == NODE) + byte |= LEFTNODE; + if (node->rightnode == NODE) + byte |= RIGHTNODE; + if (node->offset <= 0xff) + offlen = 1; + else if (node->offset <= 0xffff) + offlen = 2; + else + offlen = 3; + offset = node->offset; + byte |= offlen << OFFLEN_SHIFT; + *data++ = byte; + index++; + while (offlen--) { + *data++ = offset & 0xff; + index++; + offset >>= 8; + } + } else if (node->left) { + if (node->leftnode == NODE) + byte |= TRIENODE; + *data++ = byte; + index++; + } else if (node->right) { + byte |= RIGHTNODE; + if (node->rightnode == NODE) + byte |= TRIENODE; + *data++ = byte; + index++; + } else { + assert(0); + } +skip: + while (node) { + bitmask = 1 << node->bitnum; + if (node->mark && (leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + data = tree->leaf_emit(node->left, + data); + index += tree->leaf_size(node->left); + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if (node->mark && (rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + data = tree->leaf_emit(node->right, + data); + index += tree->leaf_size(node->right); + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + indent -= 1; + } + } +} + +/* ------------------------------------------------------------------ */ + +/* + * Unicode data. + * + * We need to keep track of the Canonical Combining Class, the Age, + * and decompositions for a code point. + * + * For the Age, we store the index into the ages table. Effectively + * this is a generation number that the table maps to a unicode + * version. + * + * The correction field is used to indicate that this entry is in the + * corrections array, which contains decompositions that were + * corrected in later revisions. The value of the correction field is + * the Unicode version in which the mapping was corrected. + */ +struct unicode_data { + unsigned int code; + int ccc; + int gen; + int correction; + unsigned int *utf32nfkdi; + unsigned int *utf32nfkdicf; + char *utf8nfkdi; + char *utf8nfkdicf; +}; + +struct unicode_data unicode_data[0x110000]; +struct unicode_data *corrections; +int corrections_count; + +struct tree *nfkdi_tree; +struct tree *nfkdicf_tree; + +struct tree *trees; +int trees_count; + +/* + * Check the corrections array to see if this entry was corrected at + * some point. + */ +static struct unicode_data * +corrections_lookup(struct unicode_data *u) +{ + int i; + + for (i = 0; i != corrections_count; i++) + if (u->code == corrections[i].code) + return &corrections[i]; + return u; +} + +static int +nfkdi_equal(void *l, void *r) +{ + struct unicode_data *left = l; + struct unicode_data *right = r; + + if (left->gen != right->gen) + return 0; + if (left->ccc != right->ccc) + return 0; + if (left->utf8nfkdi && right->utf8nfkdi && + strcmp(left->utf8nfkdi, right->utf8nfkdi) == 0) + return 1; + if (left->utf8nfkdi || right->utf8nfkdi) + return 0; + return 1; +} + +static int +nfkdicf_equal(void *l, void *r) +{ + struct unicode_data *left = l; + struct unicode_data *right = r; + + if (left->gen != right->gen) + return 0; + if (left->ccc != right->ccc) + return 0; + if (left->utf8nfkdicf && right->utf8nfkdicf && + strcmp(left->utf8nfkdicf, right->utf8nfkdicf) == 0) + return 1; + if (left->utf8nfkdicf && right->utf8nfkdicf) + return 0; + if (left->utf8nfkdicf || right->utf8nfkdicf) + return 0; + if (left->utf8nfkdi && right->utf8nfkdi && + strcmp(left->utf8nfkdi, right->utf8nfkdi) == 0) + return 1; + if (left->utf8nfkdi || right->utf8nfkdi) + return 0; + return 1; +} + +static void +nfkdi_print(void *l, int indent) +{ + struct unicode_data *leaf = l; + + printf("%*sleaf @ %p code %X ccc %d gen %d", indent, "", leaf, + leaf->code, leaf->ccc, leaf->gen); + if (leaf->utf8nfkdi) + printf(" nfkdi \"%s\"", (const char*)leaf->utf8nfkdi); + printf("\n"); +} + +static void +nfkdicf_print(void *l, int indent) +{ + struct unicode_data *leaf = l; + + printf("%*sleaf @ %p code %X ccc %d gen %d", indent, "", leaf, + leaf->code, leaf->ccc, leaf->gen); + if (leaf->utf8nfkdicf) + printf(" nfkdicf \"%s\"", (const char*)leaf->utf8nfkdicf); + else if (leaf->utf8nfkdi) + printf(" nfkdi \"%s\"", (const char*)leaf->utf8nfkdi); + printf("\n"); +} + +static int +nfkdi_mark(void *l) +{ + return 1; +} + +static int +nfkdicf_mark(void *l) +{ + struct unicode_data *leaf = l; + if (leaf->utf8nfkdicf) + return 1; + return 0; +} + +static int +correction_mark(void *l) +{ + struct unicode_data *leaf = l; + return leaf->correction; +} + +static int +nfkdi_size(void *l) +{ + struct unicode_data *leaf = l; + int size = 2; + if (leaf->utf8nfkdi) + size += strlen(leaf->utf8nfkdi) + 1; + return size; +} + +static int +nfkdicf_size(void *l) +{ + struct unicode_data *leaf = l; + int size = 2; + if (leaf->utf8nfkdicf) + size += strlen(leaf->utf8nfkdicf) + 1; + else if (leaf->utf8nfkdi) + size += strlen(leaf->utf8nfkdi) + 1; + return size; +} + +static int * +nfkdi_index(struct tree *tree, void *l) +{ + struct unicode_data *leaf = l; + return &tree->leafindex[leaf->code]; +} + +static int * +nfkdicf_index(struct tree *tree, void *l) +{ + struct unicode_data *leaf = l; + return &tree->leafindex[leaf->code]; +} + +static unsigned char * +nfkdi_emit(void *l, unsigned char *data) +{ + struct unicode_data *leaf = l; + unsigned char *s; + + *data++ = leaf->gen; + if (leaf->utf8nfkdi) { + *data++ = DECOMPOSE; + s = (unsigned char*)leaf->utf8nfkdi; + while ((*data++ = *s++) != 0) + ; + } else { + *data++ = leaf->ccc; + } + return data; +} + +static unsigned char * +nfkdicf_emit(void *l, unsigned char *data) +{ + struct unicode_data *leaf = l; + unsigned char *s; + + *data++ = leaf->gen; + if (leaf->utf8nfkdicf) { + *data++ = DECOMPOSE; + s = (unsigned char*)leaf->utf8nfkdicf; + while ((*data++ = *s++) != 0) + ; + } else if (leaf->utf8nfkdi) { + *data++ = DECOMPOSE; + s = (unsigned char*)leaf->utf8nfkdi; + while ((*data++ = *s++) != 0) + ; + } else { + *data++ = leaf->ccc; + } + return data; +} + +static void +utf8_create(struct unicode_data *data) +{ + char utf[18*4+1]; + char *u; + unsigned int *um; + int i; + + u = utf; + um = data->utf32nfkdi; + if (um) { + for (i = 0; um[i]; i++) + u += utf8key(um[i], u); + *u = '\0'; + data->utf8nfkdi = strdup((char*)utf); + } + u = utf; + um = data->utf32nfkdicf; + if (um) { + for (i = 0; um[i]; i++) + u += utf8key(um[i], u); + *u = '\0'; + if (!data->utf8nfkdi || strcmp(data->utf8nfkdi, (char*)utf)) + data->utf8nfkdicf = strdup((char*)utf); + } +} + +static void +utf8_init(void) +{ + unsigned int unichar; + int i; + + for (unichar = 0; unichar != 0x110000; unichar++) + utf8_create(&unicode_data[unichar]); + + for (i = 0; i != corrections_count; i++) + utf8_create(&corrections[i]); +} + +static void +trees_init(void) +{ + struct unicode_data *data; + unsigned int maxage; + unsigned int nextage; + int count; + int i; + int j; + + /* Count the number of different ages. */ + count = 0; + nextage = (unsigned int)-1; + do { + maxage = nextage; + nextage = 0; + for (i = 0; i <= corrections_count; i++) { + data = &corrections[i]; + if (nextage < data->correction && + data->correction < maxage) + nextage = data->correction; + } + count++; + } while (nextage); + + /* Two trees per age: nfkdi and nfkdicf */ + trees_count = count * 2; + trees = calloc(trees_count, sizeof(struct tree)); + + /* Assign ages to the trees. */ + count = trees_count; + nextage = (unsigned int)-1; + do { + maxage = nextage; + trees[--count].maxage = maxage; + trees[--count].maxage = maxage; + nextage = 0; + for (i = 0; i <= corrections_count; i++) { + data = &corrections[i]; + if (nextage < data->correction && + data->correction < maxage) + nextage = data->correction; + } + } while (nextage); + + /* The ages assigned above are off by one. */ + for (i = 0; i != trees_count; i++) { + j = 0; + while (ages[j] < trees[i].maxage) + j++; + trees[i].maxage = ages[j-1]; + } + + /* Set up the forwarding between trees. */ + trees[trees_count-2].next = &trees[trees_count-1]; + trees[trees_count-1].leaf_mark = nfkdi_mark; + trees[trees_count-2].leaf_mark = nfkdicf_mark; + for (i = 0; i != trees_count-2; i += 2) { + trees[i].next = &trees[trees_count-2]; + trees[i].leaf_mark = correction_mark; + trees[i+1].next = &trees[trees_count-1]; + trees[i+1].leaf_mark = correction_mark; + } + + /* Assign the callouts. */ + for (i = 0; i != trees_count; i += 2) { + trees[i].type = "nfkdicf"; + trees[i].leaf_equal = nfkdicf_equal; + trees[i].leaf_print = nfkdicf_print; + trees[i].leaf_size = nfkdicf_size; + trees[i].leaf_index = nfkdicf_index; + trees[i].leaf_emit = nfkdicf_emit; + + trees[i+1].type = "nfkdi"; + trees[i+1].leaf_equal = nfkdi_equal; + trees[i+1].leaf_print = nfkdi_print; + trees[i+1].leaf_size = nfkdi_size; + trees[i+1].leaf_index = nfkdi_index; + trees[i+1].leaf_emit = nfkdi_emit; + } + + /* Finish init. */ + for (i = 0; i != trees_count; i++) + trees[i].childnode = NODE; +} + +static void +trees_populate(void) +{ + struct unicode_data *data; + unsigned int unichar; + char keyval[4]; + int keylen; + int i; + + for (i = 0; i != trees_count; i++) { + if (verbose > 0) { + printf("Populating %s_%x\n", + trees[i].type, trees[i].maxage); + } + for (unichar = 0; unichar != 0x110000; unichar++) { + if (unicode_data[unichar].gen < 0) + continue; + keylen = utf8key(unichar, keyval); + data = corrections_lookup(&unicode_data[unichar]); + if (data->correction <= trees[i].maxage) + data = &unicode_data[unichar]; + insert(&trees[i], keyval, keylen, data); + } + } +} + +static void +trees_reduce(void) +{ + int i; + int size; + int changed; + + for (i = 0; i != trees_count; i++) + prune(&trees[i]); + for (i = 0; i != trees_count; i++) + mark_nodes(&trees[i]); + do { + size = 0; + for (i = 0; i != trees_count; i++) + size = index_nodes(&trees[i], size); + changed = 0; + for (i = 0; i != trees_count; i++) + changed += size_nodes(&trees[i]); + } while (changed); + + utf8data = calloc(size, 1); + utf8data_size = size; + for (i = 0; i != trees_count; i++) + emit(&trees[i], utf8data); + + if (verbose > 0) { + for (i = 0; i != trees_count; i++) { + printf("%s_%x idx %d\n", + trees[i].type, trees[i].maxage, trees[i].index); + } + } + + nfkdi = utf8data + trees[trees_count-1].index; + nfkdicf = utf8data + trees[trees_count-2].index; + + nfkdi_tree = &trees[trees_count-1]; + nfkdicf_tree = &trees[trees_count-2]; +} + +static void +verify(struct tree *tree) +{ + struct unicode_data *data; + utf8leaf_t *leaf; + unsigned int unichar; + char key[4]; + int report; + int nocf; + + if (verbose > 0) + printf("Verifying %s_%x\n", tree->type, tree->maxage); + nocf = strcmp(tree->type, "nfkdicf"); + + for (unichar = 0; unichar != 0x110000; unichar++) { + report = 0; + data = corrections_lookup(&unicode_data[unichar]); + if (data->correction <= tree->maxage) + data = &unicode_data[unichar]; + utf8key(unichar, key); + leaf = utf8lookup(tree, key); + if (!leaf) { + if (data->gen != -1) + report++; + if (unichar < 0xd800 || unichar > 0xdfff) + report++; + } else { + if (unichar >= 0xd800 && unichar <= 0xdfff) + report++; + if (data->gen == -1) + report++; + if (data->gen != LEAF_GEN(leaf)) + report++; + if (LEAF_CCC(leaf) == DECOMPOSE) { + if (nocf) { + if (!data->utf8nfkdi) { + report++; + } else if (strcmp(data->utf8nfkdi, + LEAF_STR(leaf))) { + report++; + } + } else { + if (!data->utf8nfkdicf && + !data->utf8nfkdi) { + report++; + } else if (data->utf8nfkdicf) { + if (strcmp(data->utf8nfkdicf, + LEAF_STR(leaf))) + report++; + } else if (strcmp(data->utf8nfkdi, + LEAF_STR(leaf))) { + report++; + } + } + } else if (data->ccc != LEAF_CCC(leaf)) { + report++; + } + } + if (report) { + printf("%X code %X gen %d ccc %d" + " nfdki -> \"%s\"", + unichar, data->code, data->gen, + data->ccc, + data->utf8nfkdi); + if (leaf) { + printf(" age %d ccc %d" + " nfdki -> \"%s\"\n", + LEAF_GEN(leaf), + LEAF_CCC(leaf), + LEAF_CCC(leaf) == DECOMPOSE ? + LEAF_STR(leaf) : ""); + } + printf("\n"); + } + } +} + +static void +trees_verify(void) +{ + int i; + + for (i = 0; i != trees_count; i++) + verify(&trees[i]); +} + +/* ------------------------------------------------------------------ */ + +static void +help(void) +{ + printf("Usage: %s [options]\n", argv0); + printf("\n"); + printf("This program creates an a data trie used for parsing and\n"); + printf("normalization of UTF-8 strings. The trie is derived from\n"); + printf("a set of input files from the Unicode character database\n"); + printf("found at: http://www.unicode.org/Public/UCD/latest/ucd/\n"); + printf("\n"); + printf("The generated tree supports two normalization forms:\n"); + printf("\n"); + printf("\tnfkdi:\n"); + printf("\t- Apply unicode normalization form NFKD.\n"); + printf("\t- Remove any Default_Ignorable_Code_Point.\n"); + printf("\n"); + printf("\tnfkdicf:\n"); + printf("\t- Apply unicode normalization form NFKD.\n"); + printf("\t- Remove any Default_Ignorable_Code_Point.\n"); + printf("\t- Apply a full casefold (C + F).\n"); + printf("\n"); + printf("These forms were chosen as being most useful when dealing\n"); + printf("with file names: NFKD catches most cases where characters\n"); + printf("should be considered equivalent. The ignorables are mostly\n"); + printf("invisible, making names hard to type.\n"); + printf("\n"); + printf("The options to specify the files to be used are listed\n"); + printf("below with their default values, which are the names used\n"); + printf("by version 7.0.0 of the Unicode Character Database.\n"); + printf("\n"); + printf("The input files:\n"); + printf("\t-a %s\n", AGE_NAME); + printf("\t-c %s\n", CCC_NAME); + printf("\t-p %s\n", PROP_NAME); + printf("\t-d %s\n", DATA_NAME); + printf("\t-f %s\n", FOLD_NAME); + printf("\t-n %s\n", NORM_NAME); + printf("\n"); + printf("Additionally, the generated tables are tested using:\n"); + printf("\t-t %s\n", TEST_NAME); + printf("\n"); + printf("Finally, the output file:\n"); + printf("\t-o %s\n", UTF8_NAME); + printf("\n"); +} + +static void +usage(void) +{ + help(); + exit(1); +} + +static void +open_fail(const char *name, int error) +{ + printf("Error %d opening %s: %s\n", error, name, strerror(error)); + exit(1); +} + +static void +file_fail(const char *filename) +{ + printf("Error parsing %s\n", filename); + exit(1); +} + +static void +line_fail(const char *filename, const char *line) +{ + printf("Error parsing %s:%s\n", filename, line); + exit(1); +} + +/* ------------------------------------------------------------------ */ + +static void +print_utf32(unsigned int *utf32str) +{ + int i; + for (i = 0; utf32str[i]; i++) + printf(" %X", utf32str[i]); +} + +static void +print_utf32nfkdi(unsigned int unichar) +{ + printf(" %X ->", unichar); + print_utf32(unicode_data[unichar].utf32nfkdi); + printf("\n"); +} + +static void +print_utf32nfkdicf(unsigned int unichar) +{ + printf(" %X ->", unichar); + print_utf32(unicode_data[unichar].utf32nfkdicf); + printf("\n"); +} + +/* ------------------------------------------------------------------ */ + +static void +age_init(void) +{ + FILE *file; + unsigned int first; + unsigned int last; + unsigned int unichar; + unsigned int major; + unsigned int minor; + unsigned int revision; + int gen; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", age_name); + + file = fopen(age_name, "r"); + if (!file) + open_fail(age_name, errno); + count = 0; + + gen = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "# Age=V%d_%d_%d", + &major, &minor, &revision); + if (ret == 3) { + ages_count++; + if (verbose > 1) + printf(" Age V%d_%d_%d\n", + major, minor, revision); + if (!age_valid(major, minor, revision)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "# Age=V%d_%d", &major, &minor); + if (ret == 2) { + ages_count++; + if (verbose > 1) + printf(" Age V%d_%d\n", major, minor); + if (!age_valid(major, minor, 0)) + line_fail(age_name, line); + continue; + } + } + + /* We must have found something above. */ + if (verbose > 1) + printf("%d age entries\n", ages_count); + if (ages_count == 0 || ages_count > MAXGEN) + file_fail(age_name); + + /* There is a 0 entry. */ + ages_count++; + ages = calloc(ages_count + 1, sizeof(*ages)); + /* And a guard entry. */ + ages[ages_count] = (unsigned int)-1; + + rewind(file); + count = 0; + gen = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "# Age=V%d_%d_%d", + &major, &minor, &revision); + if (ret == 3) { + ages[++gen] = + UNICODE_AGE(major, minor, revision); + if (verbose > 1) + printf(" Age V%d_%d_%d = gen %d\n", + major, minor, revision, gen); + if (!age_valid(major, minor, revision)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "# Age=V%d_%d", &major, &minor); + if (ret == 2) { + ages[++gen] = UNICODE_AGE(major, minor, 0); + if (verbose > 1) + printf(" Age V%d_%d = %d\n", + major, minor, gen); + if (!age_valid(major, minor, 0)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "%X..%X ; %d.%d #", + &first, &last, &major, &minor); + if (ret == 4) { + for (unichar = first; unichar <= last; unichar++) + unicode_data[unichar].gen = gen; + count += 1 + last - first; + if (verbose > 1) + printf(" %X..%X gen %d\n", first, last, gen); + if (!utf32valid(first) || !utf32valid(last)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "%X ; %d.%d #", &unichar, &major, &minor); + if (ret == 3) { + unicode_data[unichar].gen = gen; + count++; + if (verbose > 1) + printf(" %X gen %d\n", unichar, gen); + if (!utf32valid(unichar)) + line_fail(age_name, line); + continue; + } + } + unicode_maxage = ages[gen]; + fclose(file); + + /* Nix surrogate block */ + if (verbose > 1) + printf(" Removing surrogate block D800..DFFF\n"); + for (unichar = 0xd800; unichar <= 0xdfff; unichar++) + unicode_data[unichar].gen = -1; + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(age_name); +} + +static void +ccc_init(void) +{ + FILE *file; + unsigned int first; + unsigned int last; + unsigned int unichar; + unsigned int value; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", ccc_name); + + file = fopen(ccc_name, "r"); + if (!file) + open_fail(ccc_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X..%X ; %d #", &first, &last, &value); + if (ret == 3) { + for (unichar = first; unichar <= last; unichar++) { + unicode_data[unichar].ccc = value; + count++; + } + if (verbose > 1) + printf(" %X..%X ccc %d\n", first, last, value); + if (!utf32valid(first) || !utf32valid(last)) + line_fail(ccc_name, line); + continue; + } + ret = sscanf(line, "%X ; %d #", &unichar, &value); + if (ret == 2) { + unicode_data[unichar].ccc = value; + count++; + if (verbose > 1) + printf(" %X ccc %d\n", unichar, value); + if (!utf32valid(unichar)) + line_fail(ccc_name, line); + continue; + } + } + fclose(file); + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(ccc_name); +} + +static void +nfkdi_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + char *s; + unsigned int *um; + int count; + int i; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", data_name); + file = fopen(data_name, "r"); + if (!file) + open_fail(data_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X;%*[^;];%*[^;];%*[^;];%*[^;];%[^;];", + &unichar, buf0); + if (ret != 2) + continue; + if (!utf32valid(unichar)) + line_fail(data_name, line); + + s = buf0; + /* skip over */ + if (*s == '<') + while (*s++ != ' ') + ; + /* decode the decomposition into UTF-32 */ + i = 0; + while (*s) { + mapping[i] = strtoul(s, &s, 16); + if (!utf32valid(mapping[i])) + line_fail(data_name, line); + i++; + } + mapping[i++] = 0; + + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdi = um; + + if (verbose > 1) + print_utf32nfkdi(unichar); + count++; + } + fclose(file); + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(data_name); +} + +static void +nfkdicf_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + char status; + char *s; + unsigned int *um; + int i; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", fold_name); + file = fopen(fold_name, "r"); + if (!file) + open_fail(fold_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X; %c; %[^;];", &unichar, &status, buf0); + if (ret != 3) + continue; + if (!utf32valid(unichar)) + line_fail(fold_name, line); + /* Use the C+F casefold. */ + if (status != 'C' && status != 'F') + continue; + s = buf0; + if (*s == '<') + while (*s++ != ' ') + ; + i = 0; + while (*s) { + mapping[i] = strtoul(s, &s, 16); + if (!utf32valid(mapping[i])) + line_fail(fold_name, line); + i++; + } + mapping[i++] = 0; + + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + + if (verbose > 1) + print_utf32nfkdicf(unichar); + count++; + } + fclose(file); + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(fold_name); +} + +static void +ignore_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int first; + unsigned int last; + unsigned int *um; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", prop_name); + file = fopen(prop_name, "r"); + if (!file) + open_fail(prop_name, errno); + assert(file); + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X..%X ; %s # ", &first, &last, buf0); + if (ret == 3) { + if (strcmp(buf0, "Default_Ignorable_Code_Point")) + continue; + if (!utf32valid(first) || !utf32valid(last)) + line_fail(prop_name, line); + for (unichar = first; unichar <= last; unichar++) { + free(unicode_data[unichar].utf32nfkdi); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdi = um; + free(unicode_data[unichar].utf32nfkdicf); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdicf = um; + count++; + } + if (verbose > 1) + printf(" %X..%X Default_Ignorable_Code_Point\n", + first, last); + continue; + } + ret = sscanf(line, "%X ; %s # ", &unichar, buf0); + if (ret == 2) { + if (strcmp(buf0, "Default_Ignorable_Code_Point")) + continue; + if (!utf32valid(unichar)) + line_fail(prop_name, line); + free(unicode_data[unichar].utf32nfkdi); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdi = um; + free(unicode_data[unichar].utf32nfkdicf); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdicf = um; + if (verbose > 1) + printf(" %X Default_Ignorable_Code_Point\n", + unichar); + count++; + continue; + } + } + fclose(file); + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(prop_name); +} + +static void +corrections_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int major; + unsigned int minor; + unsigned int revision; + unsigned int age; + unsigned int *um; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + char *s; + int i; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", norm_name); + file = fopen(norm_name, "r"); + if (!file) + open_fail(norm_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X;%[^;];%[^;];%d.%d.%d #", + &unichar, buf0, buf1, + &major, &minor, &revision); + if (ret != 6) + continue; + if (!utf32valid(unichar) || !age_valid(major, minor, revision)) + line_fail(norm_name, line); + count++; + } + corrections = calloc(count, sizeof(struct unicode_data)); + corrections_count = count; + rewind(file); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X;%[^;];%[^;];%d.%d.%d #", + &unichar, buf0, buf1, + &major, &minor, &revision); + if (ret != 6) + continue; + if (!utf32valid(unichar) || !age_valid(major, minor, revision)) + line_fail(norm_name, line); + corrections[count] = unicode_data[unichar]; + assert(corrections[count].code == unichar); + age = UNICODE_AGE(major, minor, revision); + corrections[count].correction = age; + + i = 0; + s = buf0; + while (*s) { + mapping[i] = strtoul(s, &s, 16); + if (!utf32valid(mapping[i])) + line_fail(norm_name, line); + i++; + } + mapping[i++] = 0; + + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + corrections[count].utf32nfkdi = um; + + if (verbose > 1) + printf(" %X -> %s -> %s V%d_%d_%d\n", + unichar, buf0, buf1, major, minor, revision); + count++; + } + fclose(file); + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(norm_name); +} + +/* ------------------------------------------------------------------ */ + +/* + * Hangul decomposition (algorithm from Section 3.12 of Unicode 6.3.0) + * + * AC00;;Lo;0;L;;;;;N;;;;; + * D7A3;;Lo;0;L;;;;;N;;;;; + * + * SBase = 0xAC00 + * LBase = 0x1100 + * VBase = 0x1161 + * TBase = 0x11A7 + * LCount = 19 + * VCount = 21 + * TCount = 28 + * NCount = 588 (VCount * TCount) + * SCount = 11172 (LCount * NCount) + * + * Decomposition: + * SIndex = s - SBase + * + * LV (Canonical/Full) + * LIndex = SIndex / NCount + * VIndex = (Sindex % NCount) / TCount + * LPart = LBase + LIndex + * VPart = VBase + VIndex + * + * LVT (Canonical) + * LVIndex = (SIndex / TCount) * TCount + * TIndex = (Sindex % TCount + * LVPart = LBase + LVIndex + * TPart = TBase + TIndex + * + * LVT (Full) + * LIndex = SIndex / NCount + * VIndex = (Sindex % NCount) / TCount + * TIndex = (Sindex % TCount + * LPart = LBase + LIndex + * VPart = VBase + VIndex + * if (TIndex == 0) { + * d = + * } else { + * TPart = TBase + TIndex + * d = + * } + * + */ + +static void +hangul_decompose(void) +{ + unsigned int sb = 0xAC00; + unsigned int lb = 0x1100; + unsigned int vb = 0x1161; + unsigned int tb = 0x11a7; + /* unsigned int lc = 19; */ + unsigned int vc = 21; + unsigned int tc = 28; + unsigned int nc = (vc * tc); + /* unsigned int sc = (lc * nc); */ + unsigned int unichar; + unsigned int mapping[4]; + unsigned int *um; + int count; + int i; + + if (verbose > 0) + printf("Decomposing hangul\n"); + /* Hangul */ + count = 0; + for (unichar = 0xAC00; unichar <= 0xD7A3; unichar++) { + unsigned int si = unichar - sb; + unsigned int li = si / nc; + unsigned int vi = (si % nc) / tc; + unsigned int ti = si % tc; + + i = 0; + mapping[i++] = lb + li; + mapping[i++] = vb + vi; + if (ti) + mapping[i++] = tb + ti; + mapping[i++] = 0; + + assert(!unicode_data[unichar].utf32nfkdi); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdi = um; + + assert(!unicode_data[unichar].utf32nfkdicf); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + + if (verbose > 1) + print_utf32nfkdi(unichar); + + count++; + } + if (verbose > 0) + printf("Created %d entries\n", count); +} + +static void +nfkdi_decompose(void) +{ + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + unsigned int *um; + unsigned int *dc; + int count; + int i; + int j; + int ret; + + if (verbose > 0) + printf("Decomposing nfkdi\n"); + + count = 0; + for (unichar = 0; unichar != 0x110000; unichar++) { + if (!unicode_data[unichar].utf32nfkdi) + continue; + for (;;) { + ret = 1; + i = 0; + um = unicode_data[unichar].utf32nfkdi; + while (*um) { + dc = unicode_data[*um].utf32nfkdi; + if (dc) { + for (j = 0; dc[j]; j++) + mapping[i++] = dc[j]; + ret = 0; + } else { + mapping[i++] = *um; + } + um++; + } + mapping[i++] = 0; + if (ret) + break; + free(unicode_data[unichar].utf32nfkdi); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdi = um; + } + /* Add this decomposition to nfkdicf if there is no entry. */ + if (!unicode_data[unichar].utf32nfkdicf) { + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + } + if (verbose > 1) + print_utf32nfkdi(unichar); + count++; + } + if (verbose > 0) + printf("Processed %d entries\n", count); +} + +static void +nfkdicf_decompose(void) +{ + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + unsigned int *um; + unsigned int *dc; + int count; + int i; + int j; + int ret; + + if (verbose > 0) + printf("Decomposing nfkdicf\n"); + count = 0; + for (unichar = 0; unichar != 0x110000; unichar++) { + if (!unicode_data[unichar].utf32nfkdicf) + continue; + for (;;) { + ret = 1; + i = 0; + um = unicode_data[unichar].utf32nfkdicf; + while (*um) { + dc = unicode_data[*um].utf32nfkdicf; + if (dc) { + for (j = 0; dc[j]; j++) + mapping[i++] = dc[j]; + ret = 0; + } else { + mapping[i++] = *um; + } + um++; + } + mapping[i++] = 0; + if (ret) + break; + free(unicode_data[unichar].utf32nfkdicf); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + } + if (verbose > 1) + print_utf32nfkdicf(unichar); + count++; + } + if (verbose > 0) + printf("Processed %d entries\n", count); +} + +/* ------------------------------------------------------------------ */ + +int utf8agemax(struct tree *, const char *); +int utf8nagemax(struct tree *, const char *, size_t); +int utf8agemin(struct tree *, const char *); +int utf8nagemin(struct tree *, const char *, size_t); +ssize_t utf8len(struct tree *, const char *); +ssize_t utf8nlen(struct tree *, const char *, size_t); +struct utf8cursor; +int utf8cursor(struct utf8cursor *, struct tree *, const char *); +int utf8ncursor(struct utf8cursor *, struct tree *, const char *, size_t); +int utf8byte(struct utf8cursor *); + +/* + * Use trie to scan s, touching at most len bytes. + * Returns the leaf if one exists, NULL otherwise. + * + * A non-NULL return guarantees that the UTF-8 sequence starting at s + * is well-formed and corresponds to a known unicode code point. The + * shorthand for this will be "is valid UTF-8 unicode". + */ +static utf8leaf_t * +utf8nlookup(struct tree *tree, const char *s, size_t len) +{ + utf8trie_t *trie = utf8data + tree->index; + int offlen; + int offset; + int mask; + int node; + + if (!tree) + return NULL; + if (len == 0) + return NULL; + node = 1; + while (node) { + offlen = (*trie & OFFLEN) >> OFFLEN_SHIFT; + if (*trie & NEXTBYTE) { + if (--len == 0) + return NULL; + s++; + } + mask = 1 << (*trie & BITNUM); + if (*s & mask) { + /* Right leg */ + if (offlen) { + /* Right node at offset of trie */ + node = (*trie & RIGHTNODE); + offset = trie[offlen]; + while (--offlen) { + offset <<= 8; + offset |= trie[offlen]; + } + trie += offset; + } else if (*trie & RIGHTPATH) { + /* Right node after this node */ + node = (*trie & TRIENODE); + trie++; + } else { + /* No right node. */ + node = 0; + trie = NULL; + } + } else { + /* Left leg */ + if (offlen) { + /* Left node after this node. */ + node = (*trie & LEFTNODE); + trie += offlen + 1; + } else if (*trie & RIGHTPATH) { + /* No left node. */ + node = 0; + trie = NULL; + } else { + /* Left node after this node */ + node = (*trie & TRIENODE); + trie++; + } + } + } + return trie; +} + +/* + * Use trie to scan s. + * Returns the leaf if one exists, NULL otherwise. + * + * Forwards to trie_nlookup(). + */ +static utf8leaf_t * +utf8lookup(struct tree *tree, const char *s) +{ + return utf8nlookup(tree, s, (size_t)-1); +} + +/* + * Return the number of bytes used by the current UTF-8 sequence. + * Assumes the input points to the first byte of a valid UTF-8 + * sequence. + */ +static inline int +utf8clen(const char *s) +{ + unsigned char c = *s; + return 1 + (c >= 0xC0) + (c >= 0xE0) + (c >= 0xF0); +} + +/* + * Maximum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if only non-assigned code points are used. + */ +int +utf8agemax(struct tree *tree, const char *s) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!tree) + return -1; + while (*s) { + if (!(leaf = utf8lookup(tree, s))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age > age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} + +/* + * Minimum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if non-assigned code points are used. + */ +int +utf8agemin(struct tree *tree, const char *s) +{ + utf8leaf_t *leaf; + int age = tree->maxage; + int leaf_age; + + if (!tree) + return -1; + while (*s) { + if (!(leaf = utf8lookup(tree, s))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age < age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemax(struct tree *tree, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!tree) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(tree, s, len))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age > age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemin(struct tree *tree, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int leaf_age; + int age = tree->maxage; + + if (!tree) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(tree, s, len))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age < age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} + +/* + * Length of the normalization of s. + * Return -1 if s is not valid UTF-8 unicode. + * + * A string of Default_Ignorable_Code_Point has length 0. + */ +ssize_t +utf8len(struct tree *tree, const char *s) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!tree) + return -1; + while (*s) { + if (!(leaf = utf8lookup(tree, s))) + return -1; + if (ages[LEAF_GEN(leaf)] > tree->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + s += utf8clen(s); + } + return ret; +} + +/* + * Length of the normalization of s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +ssize_t +utf8nlen(struct tree *tree, const char *s, size_t len) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!tree) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(tree, s, len))) + return -1; + if (ages[LEAF_GEN(leaf)] > tree->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + len -= utf8clen(s); + s += utf8clen(s); + } + return ret; +} + +/* + * Cursor structure used by the normalizer. + */ +struct utf8cursor { + struct tree *tree; + const char *s; + const char *p; + const char *ss; + const char *sp; + unsigned int len; + unsigned int slen; + short int ccc; + short int nccc; + unsigned int unichar; +}; + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * s : string. + * len : length of s. + * u8c : pointer to cursor. + * trie : utf8trie_t to use for normalization. + * + * Returns -1 on error, 0 on success. + */ +int +utf8ncursor( + struct utf8cursor *u8c, + struct tree *tree, + const char *s, + size_t len) +{ + if (!tree) + return -1; + if (!s) + return -1; + u8c->tree = tree; + u8c->s = s; + u8c->p = NULL; + u8c->ss = NULL; + u8c->sp = NULL; + u8c->len = len; + u8c->slen = 0; + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + u8c->unichar = 0; + /* Check we didn't clobber the maximum length. */ + if (u8c->len != len) + return -1; + /* The first byte of s may not be an utf8 continuation. */ + if (len > 0 && (*s & 0xC0) == 0x80) + return -1; + return 0; +} + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * s : NUL-terminated string. + * u8c : pointer to cursor. + * trie : utf8trie_t to use for normalization. + * + * Returns -1 on error, 0 on success. + */ +int +utf8cursor( + struct utf8cursor *u8c, + struct tree *tree, + const char *s) +{ + return utf8ncursor(u8c, tree, s, (unsigned int)-1); +} + +/* + * Get one byte from the normalized form of the string described by u8c. + * + * Returns the byte cast to an unsigned char on succes, and -1 on failure. + * + * The cursor keeps track of the location in the string in u8c->s. + * When a character is decomposed, the current location is stored in + * u8c->p, and u8c->s is set to the start of the decomposition. Note + * that bytes from a decomposition do not count against u8c->len. + * + * Characters are emitted if they match the current CCC in u8c->ccc. + * Hitting end-of-string while u8c->ccc == STOPPER means we're done, + * and the function returns 0 in that case. + * + * Sorting by CCC is done by repeatedly scanning the string. The + * values of u8c->s and u8c->p are stored in u8c->ss and u8c->sp at + * the start of the scan. The first pass finds the lowest CCC to be + * emitted and stores it in u8c->nccc, the second pass emits the + * characters with this CCC and finds the next lowest CCC. This limits + * the number of passes to 1 + the number of different CCCs in the + * sequence being scanned. + * + * Therefore: + * u8c->p != NULL -> a decomposition is being scanned. + * u8c->ss != NULL -> this is a repeating scan. + * u8c->ccc == -1 -> this is the first scan of a repeating scan. + */ +int +utf8byte(struct utf8cursor *u8c) +{ + utf8leaf_t *leaf; + int ccc; + + for (;;) { + /* Check for the end of a decomposed character. */ + if (u8c->p && *u8c->s == '\0') { + u8c->s = u8c->p; + u8c->p = NULL; + } + + /* Check for end-of-string. */ + if (!u8c->p && (u8c->len == 0 || *u8c->s == '\0')) { + /* There is no next byte. */ + if (u8c->ccc == STOPPER) + return 0; + /* End-of-string during a scan counts as a stopper. */ + ccc = STOPPER; + goto ccc_mismatch; + } else if ((*u8c->s & 0xC0) == 0x80) { + /* This is a continuation of the current character. */ + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Look up the data for the current character. */ + if (u8c->p) + leaf = utf8lookup(u8c->tree, u8c->s); + else + leaf = utf8nlookup(u8c->tree, u8c->s, u8c->len); + + /* No leaf found implies that the input is a binary blob. */ + if (!leaf) + return -1; + + /* Characters that are too new have CCC 0. */ + if (ages[LEAF_GEN(leaf)] > u8c->tree->maxage) { + ccc = STOPPER; + } else if ((ccc = LEAF_CCC(leaf)) == DECOMPOSE) { + u8c->len -= utf8clen(u8c->s); + u8c->p = u8c->s + utf8clen(u8c->s); + u8c->s = LEAF_STR(leaf); + /* Empty decomposition implies CCC 0. */ + if (*u8c->s == '\0') { + if (u8c->ccc == STOPPER) + continue; + ccc = STOPPER; + goto ccc_mismatch; + } + leaf = utf8lookup(u8c->tree, u8c->s); + ccc = LEAF_CCC(leaf); + } + u8c->unichar = utf8code(u8c->s); + + /* + * If this is not a stopper, then see if it updates + * the next canonical class to be emitted. + */ + if (ccc != STOPPER && u8c->ccc < ccc && ccc < u8c->nccc) + u8c->nccc = ccc; + + /* + * Return the current byte if this is the current + * combining class. + */ + if (ccc == u8c->ccc) { + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Current combining class mismatch. */ + ccc_mismatch: + if (u8c->nccc == STOPPER) { + /* + * Scan forward for the first canonical class + * to be emitted. Save the position from + * which to restart. + */ + assert(u8c->ccc == STOPPER); + u8c->ccc = MINCCC - 1; + u8c->nccc = ccc; + u8c->sp = u8c->p; + u8c->ss = u8c->s; + u8c->slen = u8c->len; + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (ccc != STOPPER) { + /* Not a stopper, and not the ccc we're emitting. */ + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (u8c->nccc != MAXCCC + 1) { + /* At a stopper, restart for next ccc. */ + u8c->ccc = u8c->nccc; + u8c->nccc = MAXCCC + 1; + u8c->s = u8c->ss; + u8c->p = u8c->sp; + u8c->len = u8c->slen; + } else { + /* All done, proceed from here. */ + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + u8c->sp = NULL; + u8c->ss = NULL; + u8c->slen = 0; + } + } +} + +/* ------------------------------------------------------------------ */ + +static int +normalize_line(struct tree *tree) +{ + char *s; + char *t; + int c; + struct utf8cursor u8c; + + /* First test: null-terminated string. */ + s = buf2; + t = buf3; + if (utf8cursor(&u8c, tree, s)) + return -1; + while ((c = utf8byte(&u8c)) > 0) + if (c != (unsigned char)*t++) + return -1; + if (c < 0) + return -1; + if (*t != 0) + return -1; + + /* Second test: length-limited string. */ + s = buf2; + /* Replace NUL with a value that will cause an error if seen. */ + s[strlen(s) + 1] = -1; + t = buf3; + if (utf8cursor(&u8c, tree, s)) + return -1; + while ((c = utf8byte(&u8c)) > 0) + if (c != (unsigned char)*t++) + return -1; + if (c < 0) + return -1; + if (*t != 0) + return -1; + + return 0; +} + +static void +normalization_test(void) +{ + FILE *file; + unsigned int unichar; + struct unicode_data *data; + char *s; + char *t; + int ret; + int ignorables; + int tests = 0; + int failures = 0; + + if (verbose > 0) + printf("Parsing %s\n", test_name); + /* Step one, read data from file. */ + file = fopen(test_name, "r"); + if (!file) + open_fail(test_name, errno); + + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%[^;];%*[^;];%*[^;];%*[^;];%[^;];", + buf0, buf1); + if (ret != 2 || *line == '#') + continue; + s = buf0; + t = buf2; + while (*s) { + unichar = strtoul(s, &s, 16); + t += utf8key(unichar, t); + } + *t = '\0'; + + ignorables = 0; + s = buf1; + t = buf3; + while (*s) { + unichar = strtoul(s, &s, 16); + data = &unicode_data[unichar]; + if (data->utf8nfkdi && !*data->utf8nfkdi) + ignorables = 1; + else + t += utf8key(unichar, t); + } + *t = '\0'; + + tests++; + if (normalize_line(nfkdi_tree) < 0) { + printf("\nline %s -> %s", buf0, buf1); + if (ignorables) + printf(" (ignorables removed)"); + printf(" failure\n"); + failures++; + } + } + fclose(file); + if (verbose > 0) + printf("Ran %d tests with %d failures\n", tests, failures); + if (failures) + file_fail(test_name); +} + +/* ------------------------------------------------------------------ */ + +static void +write_file(void) +{ + FILE *file; + int i; + int j; + int t; + int gen; + + if (verbose > 0) + printf("Writing %s\n", utf8_name); + file = fopen(utf8_name, "w"); + if (!file) + open_fail(utf8_name, errno); + + fprintf(file, "/* This file is generated code, do not edit. */\n"); + fprintf(file, "#ifndef __INCLUDED_FROM_UTF8NORM_C__\n"); + fprintf(file, "#error Only xfs_utf8.c may include this file.\n"); + fprintf(file, "#endif\n"); + fprintf(file, "\n"); + fprintf(file, "const unsigned int utf8version = %#x;\n", + unicode_maxage); + fprintf(file, "\n"); + fprintf(file, "static const unsigned int utf8agetab[] = {\n"); + for (i = 0; i != ages_count; i++) + fprintf(file, "\t%#x%s\n", ages[i], + ages[i] == unicode_maxage ? "" : ","); + fprintf(file, "};\n"); + fprintf(file, "\n"); + fprintf(file, "static const struct utf8data utf8nfkdicfdata[] = {\n"); + t = 0; + for (gen = 0; gen < ages_count; gen++) { + fprintf(file, "\t{ %#x, %d }%s\n", + ages[gen], trees[t].index, + ages[gen] == unicode_maxage ? "" : ","); + if (trees[t].maxage == ages[gen]) + t += 2; + } + fprintf(file, "};\n"); + fprintf(file, "\n"); + fprintf(file, "static const struct utf8data utf8nfkdidata[] = {\n"); + t = 1; + for (gen = 0; gen < ages_count; gen++) { + fprintf(file, "\t{ %#x, %d }%s\n", + ages[gen], trees[t].index, + ages[gen] == unicode_maxage ? "" : ","); + if (trees[t].maxage == ages[gen]) + t += 2; + } + fprintf(file, "};\n"); + fprintf(file, "\n"); + fprintf(file, "static const unsigned char utf8data[%zd] = {\n", + utf8data_size); + t = 0; + for (i = 0; i != utf8data_size; i += 16) { + if (i == trees[t].index) { + fprintf(file, "\t/* %s_%x */\n", + trees[t].type, trees[t].maxage); + if (t < trees_count-1) + t++; + } + fprintf(file, "\t"); + for (j = i; j != i + 16; j++) + fprintf(file, "0x%.2x%s", utf8data[j], + (j < utf8data_size -1 ? "," : "")); + fprintf(file, "\n"); + } + fprintf(file, "};\n"); + fclose(file); +} + +/* ------------------------------------------------------------------ */ + +int +main(int argc, char *argv[]) +{ + unsigned int unichar; + int opt; + + argv0 = argv[0]; + + while ((opt = getopt(argc, argv, "a:c:d:f:hn:o:p:t:v")) != -1) { + switch (opt) { + case 'a': + age_name = optarg; + break; + case 'c': + ccc_name = optarg; + break; + case 'd': + data_name = optarg; + break; + case 'f': + fold_name = optarg; + break; + case 'n': + norm_name = optarg; + break; + case 'o': + utf8_name = optarg; + break; + case 'p': + prop_name = optarg; + break; + case 't': + test_name = optarg; + break; + case 'v': + verbose++; + break; + case 'h': + help(); + exit(0); + default: + usage(); + } + } + + if (verbose > 1) + help(); + for (unichar = 0; unichar != 0x110000; unichar++) + unicode_data[unichar].code = unichar; + age_init(); + ccc_init(); + nfkdi_init(); + nfkdicf_init(); + ignore_init(); + corrections_init(); + hangul_decompose(); + nfkdi_decompose(); + nfkdicf_decompose(); + utf8_init(); + trees_init(); + trees_populate(); + trees_reduce(); + trees_verify(); + /* Prevent "unused function" warning. */ + (void)lookup(nfkdi_tree, " "); + if (verbose > 2) + tree_walk(nfkdi_tree); + if (verbose > 2) + tree_walk(nfkdicf_tree); + normalization_test(); + write_file(); + + return 0; +} -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:38:42 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C6DC07F52 for ; Thu, 18 Sep 2014 15:38:42 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id 8788C8F8065; Thu, 18 Sep 2014 13:38:42 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 439EE4266DC; Thu, 18 Sep 2014 15:38:42 -0500 (CDT) Date: Thu, 18 Sep 2014 15:38:42 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 08/13] libxfs: add xfs_nameops for utf8 and utf8+casefold. Message-ID: <20140918203842.GV4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140918203114.GN4482@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918203114.GN4482@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber The xfs_utf8_nameops use the nfkdi normalization when comparing filenames, and are installed if the utf8bit is set in the super block. The xfs_utf8_ci_nameops use the nfkdicf normalization when comparing filenames, and are installed if both the utf8bit and the borgbit are set in the superblock. Normalized filenames are not stored on disk. Normalization will fail if a filename is not valid UTF-8, in which case the filename is treated as an opaque blob. Changes: Type conversion to "(const char *)" added to utf8ncursor() and utf8nlen() calls. Signed-off-by: Olaf Weber --- Makefile | 2 +- include/libxfs.h | 1 + include/xfs_utf8.h | 25 ++++++ libxfs/Makefile | 4 +- libxfs/xfs_dir2.c | 15 +++- libxfs/xfs_utf8.c | 238 +++++++++++++++++++++++++++++++++++++++++++++++++++++ support/Makefile | 24 ++++++ 7 files changed, 303 insertions(+), 6 deletions(-) create mode 100644 include/xfs_utf8.h create mode 100644 libxfs/xfs_utf8.c create mode 100644 support/Makefile diff --git a/Makefile b/Makefile index f56aebd..c442da6 100644 --- a/Makefile +++ b/Makefile @@ -40,7 +40,7 @@ LDIRDIRT = $(SRCDIR) LDIRT += $(SRCTAR) endif -LIB_SUBDIRS = libxfs libxlog libxcmd libhandle libdisk +LIB_SUBDIRS = support libxfs libxlog libxcmd libhandle libdisk TOOL_SUBDIRS = copy db estimate fsck fsr growfs io logprint mkfs quota \ mdrestore repair rtcp m4 man doc po debian diff --git a/include/libxfs.h b/include/libxfs.h index 45a924f..99cb3d9 100644 --- a/include/libxfs.h +++ b/include/libxfs.h @@ -59,6 +59,7 @@ #include #include #include +#include #ifndef ARRAY_SIZE diff --git a/include/xfs_utf8.h b/include/xfs_utf8.h new file mode 100644 index 0000000..97b6a91 --- /dev/null +++ b/include/xfs_utf8.h @@ -0,0 +1,25 @@ +/* + * Copyright (c) 2014 SGI. + * 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_UTF8_H +#define XFS_UTF8_H + +extern struct xfs_nameops xfs_utf8_nameops; +extern struct xfs_nameops xfs_utf8_ci_nameops; + +#endif /* XFS_UTF8_H */ diff --git a/libxfs/Makefile b/libxfs/Makefile index ae15a5d..d836027 100644 --- a/libxfs/Makefile +++ b/libxfs/Makefile @@ -14,6 +14,7 @@ HFILES = xfs.h init.h xfs_dir2_priv.h crc32defs.h crc32table.h CFILES = cache.c \ crc32.c \ init.c kmem.c logitem.c radix-tree.c rdwr.c trans.c util.c \ + utf8norm.c \ xfs_alloc.c \ xfs_alloc_btree.c \ xfs_attr.c \ @@ -38,7 +39,8 @@ CFILES = cache.c \ xfs_rtbitmap.c \ xfs_sb.c \ xfs_symlink_remote.c \ - xfs_trans_resv.c + xfs_trans_resv.c \ + xfs_utf8.c CFILES += $(PKG_PLATFORM).c PCFILES = darwin.c freebsd.c irix.c linux.c diff --git a/libxfs/xfs_dir2.c b/libxfs/xfs_dir2.c index 1893931..6872844 100644 --- a/libxfs/xfs_dir2.c +++ b/libxfs/xfs_dir2.c @@ -123,10 +123,17 @@ xfs_dir_mount( (uint)sizeof(xfs_da_node_entry_t); mp->m_dir_magicpct = (mp->m_dirblksize * 37) / 100; - if (xfs_sb_version_hasasciici(&mp->m_sb)) - mp->m_dirnameops = &xfs_ascii_ci_nameops; - else - mp->m_dirnameops = &xfs_default_nameops; + if (xfs_sb_version_hasutf8(&mp->m_sb)) { + if (xfs_sb_version_hasasciici(&mp->m_sb)) + mp->m_dirnameops = &xfs_utf8_ci_nameops; + else + mp->m_dirnameops = &xfs_utf8_nameops; + } else { + if (xfs_sb_version_hasasciici(&mp->m_sb)) + mp->m_dirnameops = &xfs_ascii_ci_nameops; + else + mp->m_dirnameops = &xfs_default_nameops; + } } /* diff --git a/libxfs/xfs_utf8.c b/libxfs/xfs_utf8.c new file mode 100644 index 0000000..f5cc231 --- /dev/null +++ b/libxfs/xfs_utf8.c @@ -0,0 +1,238 @@ +/* + * Copyright (c) 2014 SGI. + * 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 "xfs.h" +#include "xfs_fs.h" +#include "xfs_types.h" +#include "xfs_bit.h" +#include "xfs_inum.h" +#include "xfs_sb.h" +#include "xfs_ag.h" +#include "xfs_dir2.h" +#include "xfs_da_btree.h" +#include "xfs_bmap_btree.h" +#include "xfs_alloc_btree.h" +#include "xfs_dinode.h" +#include "xfs_inode_fork.h" +#include "xfs_bmap.h" +#include "xfs_dir2.h" +#include "xfs_trace.h" +#include "xfs_utf8.h" +#include "utf8norm.h" + +/* + * xfs nameops using nfkdi + */ + +static xfs_dahash_t +xfs_utf8_hashname( + const unsigned char *name, + int len) +{ + utf8data_t nfkdi; + struct utf8cursor u8c; + xfs_dahash_t hash; + int val; + + nfkdi = utf8nfkdi(utf8version); + hash = 0; + if (utf8ncursor(&u8c, nfkdi, (const char *)name, len) < 0) + goto blob; + while ((val = utf8byte(&u8c)) > 0) + hash = val ^ rol32(hash, 7); + /* In case of error treat the name as a binary blob. */ + if (val == 0) + return hash; +blob: + return xfs_da_hashname(name, len); +} + +static int +xfs_utf8_normhash( + struct xfs_da_args *args) +{ + utf8data_t nfkdi; + struct utf8cursor u8c; + unsigned char *norm; + ssize_t normlen; + int c; + + nfkdi = utf8nfkdi(utf8version); + /* Failure to normalize is treated as a blob. */ + if ((normlen = utf8nlen(nfkdi, (const char *)args->name, + args->namelen)) < 0) + goto blob; + if (utf8ncursor(&u8c, nfkdi, (const char *)args->name, + args->namelen) < 0) + goto blob; + if (!(norm = kmem_alloc(normlen + 1, KM_NOFS|KM_MAYFAIL))) + return ENOMEM; + args->norm = norm; + args->normlen = normlen; + while ((c = utf8byte(&u8c)) > 0) + *norm++ = c; + if (c == 0) { + *norm = '\0'; + args->hashval = xfs_da_hashname(args->norm, args->normlen); + return 0; + } + kmem_free((void *)args->norm); +blob: + args->norm = NULL; + args->normlen = -1; + args->hashval = xfs_da_hashname(args->name, args->namelen); + return 0; +} + +static enum xfs_dacmp +xfs_utf8_compname( + struct xfs_da_args *args, + const unsigned char *name, + int len) +{ + utf8data_t nfkdi; + struct utf8cursor u8c; + const char *norm; + int c; + + ASSERT(args->norm || args->normlen == -1); + + /* Check for an exact match first. */ + if (args->namelen == len && memcmp(args->name, name, len) == 0) + return XFS_CMP_EXACT; + /* xfs_utf8_normhash() set args->normlen to -1 for a blob */ + if (args->normlen < 0) + return XFS_CMP_DIFFERENT; + nfkdi = utf8nfkdi(utf8version); + if (utf8ncursor(&u8c, nfkdi, (const char *)name, len) < 0) + return XFS_CMP_DIFFERENT; + norm = (const char *)args->norm; + while ((c = utf8byte(&u8c)) > 0) + if (c != *norm++) + return XFS_CMP_DIFFERENT; + if (c < 0 || *norm != '\0') + return XFS_CMP_DIFFERENT; + return XFS_CMP_MATCH; +} + +struct xfs_nameops xfs_utf8_nameops = { + .hashname = xfs_utf8_hashname, + .normhash = xfs_utf8_normhash, + .compname = xfs_utf8_compname, +}; + +/* + * xfs nameops using nfkdicf + */ + +static xfs_dahash_t +xfs_utf8_ci_hashname( + const unsigned char *name, + int len) +{ + utf8data_t nfkdicf; + struct utf8cursor u8c; + xfs_dahash_t hash; + int val; + + nfkdicf = utf8nfkdicf(utf8version); + hash = 0; + if (utf8ncursor(&u8c, nfkdicf, (const char *)name, len) < 0) + goto blob; + while ((val = utf8byte(&u8c)) > 0) + hash = val ^ rol32(hash, 7); + /* In case of error treat the name as a binary blob. */ + if (val == 0) + return hash; +blob: + return xfs_da_hashname(name, len); +} + +static int +xfs_utf8_ci_normhash( + struct xfs_da_args *args) +{ + utf8data_t nfkdicf; + struct utf8cursor u8c; + unsigned char *norm; + ssize_t normlen; + int c; + + nfkdicf = utf8nfkdicf(utf8version); + /* Failure to normalize is treated as a blob. */ + if ((normlen = utf8nlen(nfkdicf, (const char *)args->name, + args->namelen)) < 0) + goto blob; + if (utf8ncursor(&u8c, nfkdicf, (const char *)args->name, + args->namelen) < 0) + goto blob; + if (!(norm = kmem_alloc(normlen + 1, KM_NOFS|KM_MAYFAIL))) + return ENOMEM; + args->norm = norm; + args->normlen = normlen; + while ((c = utf8byte(&u8c)) > 0) + *norm++ = c; + if (c == 0) { + *norm = '\0'; + args->hashval = xfs_da_hashname(args->norm, args->normlen); + return 0; + } + kmem_free((void *)args->norm); +blob: + args->norm = NULL; + args->normlen = -1; + args->hashval = xfs_da_hashname(args->name, args->namelen); + return 0; +} + +static enum xfs_dacmp +xfs_utf8_ci_compname( + struct xfs_da_args *args, + const unsigned char *name, + int len) +{ + utf8data_t nfkdicf; + struct utf8cursor u8c; + const unsigned char *norm; + int c; + + ASSERT(args->norm || args->normlen == -1); + + /* Check for an exact match first. */ + if (args->namelen == len && memcmp(args->name, name, len) == 0) + return XFS_CMP_EXACT; + /* xfs_utf8_ci_normhash() set args->normlen to -1 for a blob */ + if (args->normlen < 0) + return XFS_CMP_DIFFERENT; + nfkdicf = utf8nfkdicf(utf8version); + if (utf8ncursor(&u8c, nfkdicf, (const char *)name, len) < 0) + return XFS_CMP_DIFFERENT; + norm = args->norm; + while ((c = utf8byte(&u8c)) > 0) + if (c != *norm++) + return XFS_CMP_DIFFERENT; + if (c < 0 || *norm != '\0') + return XFS_CMP_DIFFERENT; + return XFS_CMP_MATCH; +} + +struct xfs_nameops xfs_utf8_ci_nameops = { + .hashname = xfs_utf8_ci_hashname, + .normhash = xfs_utf8_ci_normhash, + .compname = xfs_utf8_ci_compname, +}; diff --git a/support/Makefile b/support/Makefile new file mode 100644 index 0000000..cade5fe --- /dev/null +++ b/support/Makefile @@ -0,0 +1,24 @@ +# +# Copyright (c) 2014 SGI. All Rights Reserved. +# + +TOPDIR = .. +include $(TOPDIR)/include/builddefs + +default = ../include/utf8data.h + +../include/utf8data.h: mkutf8data.c + cc -o mkutf8data mkutf8data.c + cd ucd-7.0.0 ; ../mkutf8data + mv ucd-7.0.0/utf8data.h ../include + +default clean: + rm -f mkutf8data ../include/utf8data.h + +default install: + +default install-dev: + +default install-qa: + +-include .ltdep -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:39:34 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B5C1C7F52 for ; Thu, 18 Sep 2014 15:39:34 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id 8419C8F8065; Thu, 18 Sep 2014 13:39:34 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 4B0234266DC; Thu, 18 Sep 2014 15:39:34 -0500 (CDT) Date: Thu, 18 Sep 2014 15:39:34 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 09/13] libxfs: apply utf-8 normalization rules to user extended attribute names Message-ID: <20140918203934.GW4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140918203114.GN4482@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918203114.GN4482@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Apply the same rules for UTF-8 normalization to the names of user-defined extended attributes. System attributes are excluded because they are not user-visible in the first place, and the kernel is expected to know what it is doing when naming them. Signed-off-by: Olaf Weber --- libxfs/xfs_attr.c | 49 +++++++++++++++++++++++++++++++++++++++++-------- libxfs/xfs_attr_leaf.c | 11 +++++++++-- libxfs/xfs_utf8.c | 7 +++++++ 3 files changed, 57 insertions(+), 10 deletions(-) diff --git a/libxfs/xfs_attr.c b/libxfs/xfs_attr.c index 17519d3..c30703b 100644 --- a/libxfs/xfs_attr.c +++ b/libxfs/xfs_attr.c @@ -88,8 +88,9 @@ xfs_attr_get_int( int *valuelenp, int flags) { - xfs_da_args_t args; - int error; + xfs_da_args_t args; + struct xfs_mount *mp = ip->i_mount; + int error; if (!xfs_inode_hasattr(ip)) return ENOATTR; @@ -103,9 +104,12 @@ xfs_attr_get_int( args.value = value; args.valuelen = *valuelenp; args.flags = flags; - args.hashval = xfs_da_hashname(args.name, args.namelen); args.dp = ip; args.whichfork = XFS_ATTR_FORK; + if (! xfs_sb_version_hasutf8(&mp->m_sb)) + args.hashval = xfs_da_hashname(args.name, args.namelen); + else if ((error = mp->m_dirnameops->normhash(&args)) != 0) + return error; /* * Decide on what work routines to call based on the inode size. @@ -118,6 +122,9 @@ xfs_attr_get_int( error = xfs_attr_node_get(&args); } + if (args.norm) + kmem_free((void *)args.norm); + /* * Return the number of bytes in the value to the caller. */ @@ -239,12 +246,15 @@ xfs_attr_set_int( args.value = value; args.valuelen = valuelen; args.flags = flags; - args.hashval = xfs_da_hashname(args.name, args.namelen); args.dp = dp; args.firstblock = &firstblock; args.flist = &flist; args.whichfork = XFS_ATTR_FORK; args.op_flags = XFS_DA_OP_ADDNAME | XFS_DA_OP_OKNOENT; + if (! xfs_sb_version_hasutf8(&mp->m_sb)) + args.hashval = xfs_da_hashname(args.name, args.namelen); + else if ((error = mp->m_dirnameops->normhash(&args)) != 0) + return error; /* Size is now blocks for attribute data */ args.total = xfs_attr_calc_size(dp, name->len, valuelen, &local); @@ -276,6 +286,8 @@ xfs_attr_set_int( error = xfs_trans_reserve(args.trans, &tres, args.total, 0); if (error) { xfs_trans_cancel(args.trans, 0); + if (args.norm) + kmem_free((void *)args.norm); return(error); } xfs_ilock(dp, XFS_ILOCK_EXCL); @@ -286,6 +298,8 @@ xfs_attr_set_int( if (error) { xfs_iunlock(dp, XFS_ILOCK_EXCL); xfs_trans_cancel(args.trans, XFS_TRANS_RELEASE_LOG_RES); + if (args.norm) + kmem_free((void *)args.norm); return (error); } @@ -333,7 +347,8 @@ xfs_attr_set_int( err2 = xfs_trans_commit(args.trans, XFS_TRANS_RELEASE_LOG_RES); xfs_iunlock(dp, XFS_ILOCK_EXCL); - + if (args.norm) + kmem_free((void *)args.norm); return(error == 0 ? err2 : error); } @@ -398,6 +413,8 @@ xfs_attr_set_int( xfs_trans_log_inode(args.trans, dp, XFS_ILOG_CORE); error = xfs_trans_commit(args.trans, XFS_TRANS_RELEASE_LOG_RES); xfs_iunlock(dp, XFS_ILOCK_EXCL); + if (args.norm) + kmem_free((void *)args.norm); return(error); @@ -406,6 +423,9 @@ out: xfs_trans_cancel(args.trans, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT); xfs_iunlock(dp, XFS_ILOCK_EXCL); + if (args.norm) + kmem_free((void *)args.norm); + return(error); } @@ -452,12 +472,15 @@ xfs_attr_remove_int(xfs_inode_t *dp, struct xfs_name *name, int flags) args.name = name->name; args.namelen = name->len; args.flags = flags; - args.hashval = xfs_da_hashname(args.name, args.namelen); args.dp = dp; args.firstblock = &firstblock; args.flist = &flist; args.total = 0; args.whichfork = XFS_ATTR_FORK; + if (! xfs_sb_version_hasutf8(&mp->m_sb)) + args.hashval = xfs_da_hashname(args.name, args.namelen); + else if ((error = mp->m_dirnameops->normhash(&args)) != 0) + return error; /* * we have no control over the attribute names that userspace passes us @@ -470,8 +493,11 @@ xfs_attr_remove_int(xfs_inode_t *dp, struct xfs_name *name, int flags) * Attach the dquots to the inode. */ error = xfs_qm_dqattach(dp, 0); - if (error) - return error; + if (error) { + if (args.norm) + kmem_free((void *)args.norm); + return error; + } /* * Start our first transaction of the day. @@ -497,6 +523,8 @@ xfs_attr_remove_int(xfs_inode_t *dp, struct xfs_name *name, int flags) XFS_ATTRRM_SPACE_RES(mp), 0); if (error) { xfs_trans_cancel(args.trans, 0); + if (args.norm) + kmem_free((void *)args.norm); return(error); } @@ -546,6 +574,8 @@ xfs_attr_remove_int(xfs_inode_t *dp, struct xfs_name *name, int flags) xfs_trans_log_inode(args.trans, dp, XFS_ILOG_CORE); error = xfs_trans_commit(args.trans, XFS_TRANS_RELEASE_LOG_RES); xfs_iunlock(dp, XFS_ILOCK_EXCL); + if (args.norm) + kmem_free((void *)args.norm); return(error); @@ -554,6 +584,9 @@ out: xfs_trans_cancel(args.trans, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT); xfs_iunlock(dp, XFS_ILOCK_EXCL); + if (args.norm) + kmem_free((void *)args.norm); + return(error); } diff --git a/libxfs/xfs_attr_leaf.c b/libxfs/xfs_attr_leaf.c index f7f02ae..052a6a1 100644 --- a/libxfs/xfs_attr_leaf.c +++ b/libxfs/xfs_attr_leaf.c @@ -634,6 +634,7 @@ int xfs_attr_shortform_to_leaf(xfs_da_args_t *args) { xfs_inode_t *dp; + struct xfs_mount *mp; xfs_attr_shortform_t *sf; xfs_attr_sf_entry_t *sfe; xfs_da_args_t nargs; @@ -646,6 +647,7 @@ xfs_attr_shortform_to_leaf(xfs_da_args_t *args) trace_xfs_attr_sf_to_leaf(args); dp = args->dp; + mp = dp->i_mount; ifp = dp->i_afp; sf = (xfs_attr_shortform_t *)ifp->if_u1.if_data; size = be16_to_cpu(sf->hdr.totsize); @@ -698,13 +700,18 @@ xfs_attr_shortform_to_leaf(xfs_da_args_t *args) nargs.namelen = sfe->namelen; nargs.value = &sfe->nameval[nargs.namelen]; nargs.valuelen = sfe->valuelen; - nargs.hashval = xfs_da_hashname(sfe->nameval, - sfe->namelen); nargs.flags = XFS_ATTR_NSP_ONDISK_TO_ARGS(sfe->flags); + if (! xfs_sb_version_hasutf8(&mp->m_sb)) + nargs.hashval = xfs_da_hashname(sfe->nameval, + sfe->namelen); + else if ((error = mp->m_dirnameops->normhash(&nargs)) != 0) + goto out; error = xfs_attr3_leaf_lookup_int(bp, &nargs); /* set a->index */ ASSERT(error == ENOATTR); error = xfs_attr3_leaf_add(bp, &nargs); ASSERT(error != ENOSPC); + if (nargs.norm) + kmem_free((void *)nargs.norm); if (error) goto out; sfe = XFS_ATTR_SF_NEXTENTRY(sfe); diff --git a/libxfs/xfs_utf8.c b/libxfs/xfs_utf8.c index f5cc231..5c69591 100644 --- a/libxfs/xfs_utf8.c +++ b/libxfs/xfs_utf8.c @@ -31,6 +31,7 @@ #include "xfs_inode_fork.h" #include "xfs_bmap.h" #include "xfs_dir2.h" +#include "xfs_attr_leaf.h" #include "xfs_trace.h" #include "xfs_utf8.h" #include "utf8norm.h" @@ -72,6 +73,9 @@ xfs_utf8_normhash( ssize_t normlen; int c; + /* Don't normalize system attribute names. */ + if (args->flags & (ATTR_ROOT|ATTR_SECURE)) + goto blob; nfkdi = utf8nfkdi(utf8version); /* Failure to normalize is treated as a blob. */ if ((normlen = utf8nlen(nfkdi, (const char *)args->name, @@ -173,6 +177,9 @@ xfs_utf8_ci_normhash( ssize_t normlen; int c; + /* Don't normalize system attribute names. */ + if (args->flags & (ATTR_ROOT|ATTR_SECURE)) + goto blob; nfkdicf = utf8nfkdicf(utf8version); /* Failure to normalize is treated as a blob. */ if ((normlen = utf8nlen(nfkdicf, (const char *)args->name, -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:40:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B1C867F52 for ; Thu, 18 Sep 2014 15:40:17 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id 338C1AC003; Thu, 18 Sep 2014 13:40:17 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id E9D5F4266DC; Thu, 18 Sep 2014 15:40:16 -0500 (CDT) Date: Thu, 18 Sep 2014 15:40:16 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 10/13] xfsprogs: add utf8 support to growfs Message-ID: <20140918204016.GX4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140918203114.GN4482@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918203114.GN4482@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Mark Tinguely Add reporting of the utf-8 mkfs options to xfs_growfs and xfs_info. Signed-off-by: Mark Tinguely --- growfs/xfs_growfs.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/growfs/xfs_growfs.c b/growfs/xfs_growfs.c index 8e611b6..6c41803 100644 --- a/growfs/xfs_growfs.c +++ b/growfs/xfs_growfs.c @@ -57,7 +57,8 @@ report_info( int crcs_enabled, int cimode, int ftype_enabled, - int finobt_enabled) + int finobt_enabled, + int utf8) { printf(_( "meta-data=%-22s isize=%-6u agcount=%u, agsize=%u blks\n" @@ -65,7 +66,7 @@ report_info( " =%-22s crc=%-8u finobt=%u\n" "data =%-22s bsize=%-6u blocks=%llu, imaxpct=%u\n" " =%-22s sunit=%-6u swidth=%u blks\n" - "naming =version %-14u bsize=%-6u ascii-ci=%d ftype=%d\n" + "naming =version %-14u bsize=%-6u ascii-ci=%d ftype=%d utf8=%d\n" "log =%-22s bsize=%-6u blocks=%u, version=%u\n" " =%-22s sectsz=%-5u sunit=%u blks, lazy-count=%u\n" "realtime =%-22s extsz=%-6u blocks=%llu, rtextents=%llu\n"), @@ -76,7 +77,7 @@ report_info( "", geo.blocksize, (unsigned long long)geo.datablocks, geo.imaxpct, "", geo.sunit, geo.swidth, - dirversion, geo.dirblocksize, cimode, ftype_enabled, + dirversion, geo.dirblocksize, cimode, ftype_enabled, utf8, isint ? _("internal") : logname ? logname : _("external"), geo.blocksize, geo.logblocks, logversion, "", geo.logsectsize, geo.logsunit / geo.blocksize, lazycount, @@ -114,6 +115,7 @@ main(int argc, char **argv) long long rsize; /* new rt size in fs blocks */ int ci; /* ASCII case-insensitive fs */ int lazycount; /* lazy superblock counters */ + int utf8; /* Unicode chars supported */ int xflag; /* -x flag */ char *fname; /* mount point name */ char *datadev; /* data device name */ @@ -247,11 +249,12 @@ main(int argc, char **argv) crcs_enabled = geo.flags & XFS_FSOP_GEOM_FLAGS_V5SB ? 1 : 0; ftype_enabled = geo.flags & XFS_FSOP_GEOM_FLAGS_FTYPE ? 1 : 0; finobt_enabled = geo.flags & XFS_FSOP_GEOM_FLAGS_FINOBT ? 1 : 0; + utf8 = geo.flags & XFS_FSOP_GEOM_FLAGS_UTF8 ? 1 : 0; if (nflag) { report_info(geo, datadev, isint, logdev, rtdev, lazycount, dirversion, logversion, attrversion, projid32bit, crcs_enabled, ci, - ftype_enabled, finobt_enabled); + ftype_enabled, finobt_enabled, utf8); exit(0); } @@ -289,7 +292,7 @@ main(int argc, char **argv) report_info(geo, datadev, isint, logdev, rtdev, lazycount, dirversion, logversion, attrversion, projid32bit, crcs_enabled, ci, ftype_enabled, - finobt_enabled); + finobt_enabled, utf8); ddsize = xi.dsize; dlsize = ( xi.logBBsize? xi.logBBsize : -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:41:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 0F23A7F52 for ; Thu, 18 Sep 2014 15:41:26 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id DFD718F8052; Thu, 18 Sep 2014 13:41:25 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id A47F84266DC; Thu, 18 Sep 2014 15:41:25 -0500 (CDT) Date: Thu, 18 Sep 2014 15:41:25 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 11/13] xfsprogs: add utf8 support to mkfs.xfs Message-ID: <20140918204125.GY4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140918203114.GN4482@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918203114.GN4482@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Mark Tinguely Set the utf-8 feature bit. Signed-off-by: Mark Tinguely --- man/man8/mkfs.xfs.8 | 9 ++++++++- mkfs/xfs_mkfs.c | 27 ++++++++++++++++++++++----- mkfs/xfs_mkfs.h | 3 ++- 3 files changed, 32 insertions(+), 7 deletions(-) diff --git a/man/man8/mkfs.xfs.8 b/man/man8/mkfs.xfs.8 index ad9ff3d..aa43cf5 100644 --- a/man/man8/mkfs.xfs.8 +++ b/man/man8/mkfs.xfs.8 @@ -558,7 +558,7 @@ any power of 2 size from the filesystem block size up to 65536. .IP The .B version=ci -option enables ASCII only case-insensitive filename lookup and version +option enables ASCII or UTF-8 case-insensitive filename lookup and version 2 directories. Filenames are case-preserving, that is, the names are stored in directories using the case they were created with. .IP @@ -582,6 +582,13 @@ When CRCs are enabled via the ftype functionality is always enabled. This feature can not be turned off for such filesystem configurations. .IP +.TP +.BI utf8[= value ] +This is used to enable the UTF-8 character set support. The +.I value +is either 0 or 1, with 1 signifying that UTF-8 character support is to be +enabled. If the value is omitted, 1 is assumed. +.IP .RE .TP .BI \-p " protofile" diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c index c85258a..1829e51 100644 --- a/mkfs/xfs_mkfs.c +++ b/mkfs/xfs_mkfs.c @@ -149,6 +149,8 @@ char *nopts[] = { "version", #define N_FTYPE 3 "ftype", +#define N_UTF8 4 + "utf8", NULL, }; @@ -958,6 +960,7 @@ main( int nsflag; int nvflag; int nci; + int utf8; int Nflag; int discard = 1; char *p; @@ -1004,6 +1007,7 @@ main( logagno = logblocks = rtblocks = rtextblocks = 0; Nflag = nlflag = nsflag = nvflag = nci = 0; nftype = dirftype = 0; /* inode type information in the dir */ + utf8 = 0; /* utf-8 support */ dirblocklog = dirblocksize = 0; dirversion = XFS_DFL_DIR_VERSION; qflag = 0; @@ -1565,7 +1569,8 @@ _("cannot specify both crc and ftype\n")); if (nvflag) respec('n', nopts, N_VERSION); if (!strcasecmp(value, "ci")) { - nci = 1; /* ASCII CI mode */ + /* ASCII or UTF-8 CI mode */ + nci = 1; } else { dirversion = atoi(value); if (dirversion != 2) @@ -1587,6 +1592,14 @@ _("cannot specify both crc and ftype\n")); } nftype = 1; break; + case N_UTF8: + if (!value || *value == '\0') + value = "1"; + c = atoi(value); + if (c < 0 || c > 1) + illegal(value, "n utf8"); + utf8 = c; + break; default: unknown('n', value); } @@ -2460,7 +2473,8 @@ _("size %s specified for log subvolume is too large, maximum is %lld blocks\n"), */ sbp->sb_features2 = XFS_SB_VERSION2_MKFS(crcs_enabled, lazy_sb_counters, attrversion == 2, !projid16bit, 0, - (!crcs_enabled && dirftype)); + (!crcs_enabled && dirftype), + (!crcs_enabled && utf8)); sbp->sb_versionnum = XFS_SB_VERSION_MKFS(crcs_enabled, iaflag, dsunit != 0, logversion == 2, attrversion == 1, @@ -2534,6 +2548,9 @@ _("size %s specified for log subvolume is too large, maximum is %lld blocks\n"), if (crcs_enabled) { sbp->sb_features_incompat = XFS_SB_FEAT_INCOMPAT_FTYPE; dirftype = 1; + /* turn on the utf-8 support */ + if (utf8) + sbp->sb_features_incompat |= XFS_SB_FEAT_INCOMPAT_UTF8; } if (!qflag || Nflag) { @@ -2543,7 +2560,7 @@ _("size %s specified for log subvolume is too large, maximum is %lld blocks\n"), " =%-22s crc=%-8u finobt=%u\n" "data =%-22s bsize=%-6u blocks=%llu, imaxpct=%u\n" " =%-22s sunit=%-6u swidth=%u blks\n" - "naming =version %-14u bsize=%-6u ascii-ci=%d ftype=%d\n" + "naming =version %-14u bsize=%-6u ascii-ci=%d ftype=%d utf8=%d\n" "log =%-22s bsize=%-6d blocks=%lld, version=%d\n" " =%-22s sectsz=%-5u sunit=%d blks, lazy-count=%d\n" "realtime =%-22s extsz=%-6d blocks=%lld, rtextents=%lld\n"), @@ -2552,7 +2569,7 @@ _("size %s specified for log subvolume is too large, maximum is %lld blocks\n"), "", crcs_enabled, finobt, "", blocksize, (long long)dblocks, imaxpct, "", dsunit, dswidth, - dirversion, dirblocksize, nci, dirftype, + dirversion, dirblocksize, nci, dirftype, utf8, logfile, 1 << blocklog, (long long)logblocks, logversion, "", lsectorsize, lsunit, lazy_sb_counters, rtfile, rtextblocks << blocklog, @@ -3171,7 +3188,7 @@ usage( void ) sunit=value|su=num,sectlog=n|sectsize=num,\n\ lazy-count=0|1]\n\ /* label */ [-L label (maximum 12 characters)]\n\ -/* naming */ [-n log=n|size=num,version=2|ci,ftype=0|1]\n\ +/* naming */ [-n log=n|size=num,version=2|ci,ftype=0|1,utf8=0|1]\n\ /* no-op info only */ [-N]\n\ /* prototype file */ [-p fname]\n\ /* quiet */ [-q]\n\ diff --git a/mkfs/xfs_mkfs.h b/mkfs/xfs_mkfs.h index 9df5f37..f40b284 100644 --- a/mkfs/xfs_mkfs.h +++ b/mkfs/xfs_mkfs.h @@ -37,13 +37,14 @@ 0 ) : XFS_SB_VERSION_1 ) #define XFS_SB_VERSION2_MKFS(crc, lazycount, attr2, projid32bit, parent, \ - ftype) (\ + ftype, utf8) (\ ((lazycount) ? XFS_SB_VERSION2_LAZYSBCOUNTBIT : 0) | \ ((attr2) ? XFS_SB_VERSION2_ATTR2BIT : 0) | \ ((projid32bit) ? XFS_SB_VERSION2_PROJID32BIT : 0) | \ ((parent) ? XFS_SB_VERSION2_PARENTBIT : 0) | \ ((crc) ? XFS_SB_VERSION2_CRCBIT : 0) | \ ((ftype) ? XFS_SB_VERSION2_FTYPE : 0) | \ + ((utf8) ? XFS_SB_VERSION2_UTF8BIT : 0) | \ 0 ) #define XFS_DFL_BLOCKSIZE_LOG 12 /* 4096 byte blocks */ -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:42:07 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD, T_FILL_THIS_FORM_SHORT autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1545E7F50 for ; Thu, 18 Sep 2014 15:42:07 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id 89A07AC009; Thu, 18 Sep 2014 13:42:06 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 4740E4266DC; Thu, 18 Sep 2014 15:42:06 -0500 (CDT) Date: Thu, 18 Sep 2014 15:42:06 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 12/13] xfsprogs: add utf8 support to xfs_repair Message-ID: <20140918204206.GZ4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140918203114.GN4482@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918203114.GN4482@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Mark Tinguely Fix the duplicate filename detection to use the utf-8 normalization routines. Signed-off-by: Mark Tinguely --- repair/phase6.c | 35 +++++++++++++++++++++++++---------- 1 file changed, 25 insertions(+), 10 deletions(-) diff --git a/repair/phase6.c b/repair/phase6.c index f374fd0..eb3ea35 100644 --- a/repair/phase6.c +++ b/repair/phase6.c @@ -176,13 +176,15 @@ dir_hash_add( unsigned char *name, __uint8_t ftype) { - xfs_dahash_t hash = 0; int byaddr; int byhash = 0; dir_hash_ent_t *p; int dup; short junk; struct xfs_name xname; + xfs_da_args_t args; + + memset(&args, 0, sizeof(xfs_da_args_t)); ASSERT(!hashtab->names_duped); @@ -195,19 +197,30 @@ dir_hash_add( dup = 0; if (!junk) { - hash = mp->m_dirnameops->hashname(name, namelen); - byhash = DIR_HASH_FUNC(hashtab, hash); + int error; + + args.name = name; + args.namelen = namelen; + args.inumber = inum; + args.whichfork = XFS_DATA_FORK; + + error = mp->m_dirnameops->normhash(&args); + if (error) + do_error(_("normalize has failed %d)\n"), error); + + byhash = DIR_HASH_FUNC(hashtab, args.hashval); /* * search hash bucket for existing name. */ for (p = hashtab->byhash[byhash]; p; p = p->nextbyhash) { - if (p->hashval == hash && p->name.len == namelen) { - if (memcmp(p->name.name, name, namelen) == 0) { - dup = 1; - junk = 1; - break; - } + if (p->hashval == args.hashval && + mp->m_dirnameops->compname(&args, p->name.name, + p->name.len) != + XFS_CMP_DIFFERENT) { + dup = 1; + junk = 1; + break; } } } @@ -226,7 +239,7 @@ dir_hash_add( hashtab->last = p; if (!(p->junkit = junk)) { - p->hashval = hash; + p->hashval = args.hashval; p->nextbyhash = hashtab->byhash[byhash]; hashtab->byhash[byhash] = p; } @@ -235,6 +248,8 @@ dir_hash_add( p->seen = 0; p->name = xname; + if (args.norm) + kmem_free((void *) args.norm); return !dup; } -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 15:43:03 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 15FF37F50 for ; Thu, 18 Sep 2014 15:43:03 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id 7EE64AC00C; Thu, 18 Sep 2014 13:43:02 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 25CC44266DC; Thu, 18 Sep 2014 15:43:02 -0500 (CDT) Date: Thu, 18 Sep 2014 15:43:02 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 13/13] xfsprogs: add a preliminary test for utf8 support Message-ID: <20140918204302.GA4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140918203114.GN4482@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918203114.GN4482@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Ben Myers Here's a preliminary test for utf8 support in xfs. It is based on code that also does some testing in the trie generator. Here too we are using the NormalizationTest.txt file from the unicode distribution. We check that the normalization in libxfs is working and then run checks on a filesystem. Note that there are some 'blacklisted' unichars which normalize to reserved characters. FIXME: For convenience of build this patch is against xfsprogs access to libxfs. Handling of ignorables and case fold is also not implemented here. --- Makefile | 2 +- chkutf8data/Makefile | 21 +++ chkutf8data/chkutf8data.c | 430 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 452 insertions(+), 1 deletion(-) create mode 100644 chkutf8data/Makefile create mode 100644 chkutf8data/chkutf8data.c diff --git a/Makefile b/Makefile index c442da6..d4c0a23 100644 --- a/Makefile +++ b/Makefile @@ -42,7 +42,7 @@ endif LIB_SUBDIRS = support libxfs libxlog libxcmd libhandle libdisk TOOL_SUBDIRS = copy db estimate fsck fsr growfs io logprint mkfs quota \ - mdrestore repair rtcp m4 man doc po debian + mdrestore repair rtcp m4 man doc po debian chkutf8data SUBDIRS = include $(LIB_SUBDIRS) $(TOOL_SUBDIRS) diff --git a/chkutf8data/Makefile b/chkutf8data/Makefile new file mode 100644 index 0000000..6ce5706 --- /dev/null +++ b/chkutf8data/Makefile @@ -0,0 +1,21 @@ +# +# Copyright (c) 2014 SGI. All Rights Reserved. +# + +TOPDIR = .. +include $(TOPDIR)/include/builddefs + +LTCOMMAND = chkutf8data +CFILES = chkutf8data.c + +LLDLIBS = $(LIBXFS) +LTDEPENDENCIES = $(LIBXFS) +LLDFLAGS = -static + +default: depend $(LTCOMMAND) + +include $(BUILDRULES) + +install: default + +-include .ltdep diff --git a/chkutf8data/chkutf8data.c b/chkutf8data/chkutf8data.c new file mode 100644 index 0000000..487cf1e --- /dev/null +++ b/chkutf8data/chkutf8data.c @@ -0,0 +1,430 @@ +/* + * Copyright (c) 2014 SGI. + * 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 +#include +#include +#include "utf8norm.h" + +#define FOLD_NAME "CaseFolding.txt" +#define TEST_NAME "NormalizationTest.txt" + +const char *fold_name = FOLD_NAME; +const char *test_name = TEST_NAME; + +/* An arbitrary line size limit on input lines. */ + +#define LINESIZE 1024 +char line[LINESIZE]; +char buf0[LINESIZE]; +char buf1[LINESIZE]; +char buf2[LINESIZE]; +char buf3[LINESIZE]; +char buf4[LINESIZE]; +char buf5[LINESIZE]; + +const char *mtpt; +int verbose = 0; + +/* ------------------------------------------------------------------ */ + +static void +help(void) +{ + printf("The input files:\n"); + printf("\t-f %s\n", FOLD_NAME); + printf("\t-t %s\n", TEST_NAME); + printf("\n\n"); + printf("\t-m mtpt\n"); + printf("\t-v (verbose)\n"); + printf("\t-h (help)\n"); + printf("\n"); +} + +static void +usage(void) +{ + help(); + exit(1); +} + +static void +open_fail(const char *name, int error) +{ + printf("Error %d opening %s: %s\n", error, name, strerror(error)); + exit(1); +} + +static void +file_fail(const char *filename) +{ + printf("Error parsing %s\n", filename); + exit(1); +} + +/* ------------------------------------------------------------------ */ + +/* + * UTF8 valid ranges. + * + * The UTF-8 encoding spreads the bits of a 32bit word over several + * bytes. This table gives the ranges that can be held and how they'd + * be represented. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000000 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000000 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * There is an additional requirement on UTF-8, in that only the + * shortest representation of a 32bit value is to be used. A decoder + * must not decode sequences that do not satisfy this requirement. + * Thus the allowed ranges have a lower bound. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000080 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000800 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00010000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00200000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x04000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * Actual unicode characters are limited to the range 0x0 - 0x10FFFF, + * 17 planes of 65536 values. This limits the sequences actually seen + * even more, to just the following. + * + * 0 - 0x7f: 0 0x7f + * 0x80 - 0x7ff: 0xc2 0x80 0xdf 0xbf + * 0x800 - 0xffff: 0xe0 0xa0 0x80 0xef 0xbf 0xbf + * 0x10000 - 0x10ffff: 0xf0 0x90 0x80 0x80 0xf4 0x8f 0xbf 0xbf + * + * Even within those ranges not all values are allowed: the surrogates + * 0xd800 - 0xdfff should never be seen. + * + * Note that the longest sequence seen with valid usage is 4 bytes, + * the same a single UTF-32 character. This makes the UTF-8 + * representation of Unicode strictly smaller than UTF-32. + * + * The shortest sequence requirement was introduced by: + * Corrigendum #1: UTF-8 Shortest Form + * It can be found here: + * http://www.unicode.org/versions/corrigendum1.html + * + */ + +#define UTF8_2_BITS 0xC0 +#define UTF8_3_BITS 0xE0 +#define UTF8_4_BITS 0xF0 +#define UTF8_N_BITS 0x80 +#define UTF8_2_MASK 0xE0 +#define UTF8_3_MASK 0xF0 +#define UTF8_4_MASK 0xF8 +#define UTF8_N_MASK 0xC0 +#define UTF8_V_MASK 0x3F +#define UTF8_V_SHIFT 6 + +static int +utf8key(unsigned int key, char keyval[]) +{ + int keylen; + + if (key < 0x80) { + keyval[0] = key; + keylen = 1; + } else if (key < 0x800) { + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_2_BITS; + keylen = 2; + } else if (key < 0x10000) { + keyval[2] = key & UTF8_V_MASK; + keyval[2] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_3_BITS; + keylen = 3; + } else if (key < 0x110000) { + keyval[3] = key & UTF8_V_MASK; + keyval[3] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[2] = key & UTF8_V_MASK; + keyval[2] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_4_BITS; + keylen = 4; + } else { + printf("%#x: illegal key\n", key); + keylen = 0; + } + return keylen; +} + +static int +normalize_line(utf8data_t tree, char *s, char *t) +{ + struct utf8cursor u8c; + + if (utf8cursor(&u8c, tree, s)) { + printf("%s return utf8cursor failed\n", __func__); + return -1; + } + + while ((*t = utf8byte(&u8c)) > 0) + t++; + + if (*t < 0) { + printf("%s return error %d\r", __func__, *t); + return -1; + } + if (*t != 0) { + printf("%s return t not 0\n", __func__); + return -1; + } + + return 0; +} + +static void +test_key(char *source, + char *NFC, + char *NFD, + char *NFKC, + char *NFKD) +{ + int fd; + int error; + + if (verbose) + printf("Testing %s -> %s\n", source, NFKD); + + error = chdir(mtpt); /* XXX hardcoded mount point */ + if (error) { + perror(mtpt); + exit(-1); + } + + /* the initial create should succeed */ + if (verbose) + printf("Initial create %s... ", source); + fd = open(source, O_CREAT|O_EXCL, 0); + if (fd < 0) { + printf("Failed to create %s XXX\n", source); + perror(source); + close(fd); + exit(-1); + } + close(fd); + if (verbose) + printf("Success\n"); + + /* a second create should fail */ + if (verbose) + printf("Second create %s (should return EEXIST)... ", NFKD); + fd = open(NFKD, O_CREAT|O_EXCL, 0); + if (fd >= 1) { + printf("Test Failed. Was able to create %s XXX\n", NFKD); + perror(NFKD); + close(fd); + exit(-1); + } + close(fd); + if (verbose) + printf("EEXIST\n"); + + error = unlink(NFKD); + if (error) { + printf("Unlink failed\n"); + perror(NFKD); + exit(-1); + } +} + +int +blacklisted(unsigned int unichar) +{ + /* these unichars normalize to characters we don't allow */ + unsigned int list[] = { 0x2024 /* . */, + 0x2025 /* .. */, + 0x2100 /* a/c */, + 0x2101 /* a/s */, + 0x2105 /* c/o */, + 0x2106 /* c/u */, + 0xFE30 /* .. */, + 0xFE52 /* . */, + 0xFF0E /* . */, + 0xFF0F /* / */}; + int i; + + for (i=0; i < (sizeof(list) / sizeof(unichar)); i++) { + if (list[i] == unichar) + return 1; + } + return 0; +} + +static void +normalization_test(void) +{ + FILE *file; + unsigned int unichar; + char *s; + char *t; + int ret; + int tests = 0; + int failures = 0; + char source[LINESIZE]; + char NFKD[LINESIZE]; + int skip; + utf8data_t nfkdi = utf8nfkdi(utf8version); + + printf("Parsing %s\n", test_name); + /* Step one, read data from file. */ + file = fopen(test_name, "r"); + if (!file) + open_fail(test_name, errno); + + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%[^;];%*[^;];%*[^;];%*[^;];%[^;];", + source, NFKD); + //NFC, NFD, NFKC, NFKD); + if (ret != 2 || *line == '#') + continue; + + s = source; + t = buf2; + skip = 0; + while (*s) { + unichar = strtoul(s, &s, 16); + if (blacklisted(unichar)) + skip++; + t += utf8key(unichar, t); + } + *t = '\0'; + + if (skip) + continue; + + s = NFKD; + t = buf3; + while (*s) { + unichar = strtoul(s, &s, 16); + t += utf8key(unichar, t); + } + *t = '\0'; + + /* normalize source */ + if (normalize_line(nfkdi, buf2, buf4) < 0) { + printf("normalize_line for unichar %s Failed\n", buf0); + exit(1); + } + if (verbose) + printf("(%s) %s normalized to %s... ", + source, buf2, buf4); + + /* does it match NFKD? */ + tests++; + if (memcmp(buf4, buf3, strlen(buf3))) { + if (verbose) + printf("Fail!\n"); + failures++; + } else { + if (verbose) + printf("Correct!\n"); + } + + /* normalize NFKD */ + if (normalize_line(nfkdi, buf3, buf5) < 0) { + printf("normalize_line for unichar %s Failed\n", + buf3); + exit(1); + } + if (verbose) + printf("(%s) %s normalized to %s... ", + NFKD, buf3, buf5); + + /* does it normalize to itself? */ + tests++; + if (memcmp(buf5, buf3, strlen(buf3))) { + if (verbose) + printf("Fail!\n"); + failures++; + } else { + if (verbose) + printf("Correct!\n"); + } + + /* XXX ignorables need to be taken into account? */ + test_key(buf2, NULL, NULL, NULL, buf3); + } + fclose(file); + printf("Ran %d tests with %d failures\n", tests, failures); + if (failures) + file_fail(test_name); +} + +int +main(int argc, char *argv[]) +{ + int opt; + + while ((opt = getopt(argc, argv, "f:t:m:vh")) != -1) { + switch (opt) { + case 'f': + fold_name = optarg; + break; + case 't': + test_name = optarg; + break; + case 'm': + mtpt = optarg; + break; + case 'v': + verbose++; + break; + case 'h': + help(); + exit(0); + default: + usage(); + } + } + + if (!test_name || !mtpt) { + usage(); + exit(-1); + } + + normalization_test(); + + return 0; +} -- 1.7.12.4 From bpm@sgi.com Thu Sep 18 16:10:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D01E57F37 for ; Thu, 18 Sep 2014 16:10:13 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay2.corp.sgi.com (Postfix) with ESMTP id B5BC3304032; Thu, 18 Sep 2014 14:10:10 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 716494266DC; Thu, 18 Sep 2014 16:10:10 -0500 (CDT) Date: Thu, 18 Sep 2014 16:10:10 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS Message-ID: <20140918211010.GB4482@sgi.com> References: <20140918195650.GI19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918195650.GI19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) Hi, On Thu, Sep 18, 2014 at 02:56:50PM -0500, Ben Myers wrote: > I'm posting this RFC for Unicode support in XFS on Olaf's behalf, as he > is busy with other projects. Patch 7 of each series is the trie generator and utf8 normalization module. Either it's just a little slow or it's over the message size limit on vger at a little over 100k. In case it's the latter I've placed them here: ftp://oss.sgi.com/projects/xfs/tmp/18-Sep-14/0007-xfs-add-trie-generator-and-supporting-code-for-UTF-8.patch and ftp://oss.sgi.com/projects/xfs/tmp/18-Sep-14/0007-libxfs-add-trie-generator-and-supporting-code-for-UT.patch I'll give it a while and then see about splitting up the patch. Thanks, Ben From zab@zabbo.net Thu Sep 18 16:24:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 5A4CD7F37 for ; Thu, 18 Sep 2014 16:24:25 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id DDE7DAC002 for ; Thu, 18 Sep 2014 14:24:21 -0700 (PDT) X-ASG-Debug-ID: 1411075458-04cb6c50e718f40001-NocioJ Received: from tetsuo.zabbo.net (tetsuo.zabbo.net [50.193.208.193]) by cuda.sgi.com with ESMTP id kIrimkCfq4zbIgrB for ; Thu, 18 Sep 2014 14:24:18 -0700 (PDT) X-Barracuda-Envelope-From: zab@zabbo.net X-Barracuda-Apparent-Source-IP: 50.193.208.193 Received: from localhost (lenny.home.zabbo.net [192.168.242.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by tetsuo.zabbo.net (Postfix) with ESMTPSA id B62CA7200553; Thu, 18 Sep 2014 14:24:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zabbo.net; s=default; t=1411075456; bh=CCRPnWd9MO5Q0S4GscKCiDETDBNbG4i4h08GG99jngg=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=fWUyCDDFeR0BpREgGF7rz6AMRiD9LUsbKe7kuRnnstjVi9/2K45cKqCdzLwt8CFSm NUrWtQP0tPrz0ruhCw9D7eCloUByfdk+WqacjTG23aphBEKHRUSyhjn7rRJgkl/TTN mQaX4HzfomwwQBR5CpyIUo4R/R0ac0eo7A4BDKfA= Date: Thu, 18 Sep 2014 14:24:17 -0700 From: Zach Brown To: Ben Myers Cc: linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS Message-ID: <20140918212417.GF16677@lenny.home.zabbo.net> X-ASG-Orig-Subj: Re: [RFC v2] Unicode/UTF-8 support for XFS References: <20140918195650.GI19952@sgi.com> <20140918211010.GB4482@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918211010.GB4482@sgi.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: tetsuo.zabbo.net[50.193.208.193] X-Barracuda-Start-Time: 1411075458 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9628 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Thu, Sep 18, 2014 at 04:10:10PM -0500, Ben Myers wrote: > Hi, > > On Thu, Sep 18, 2014 at 02:56:50PM -0500, Ben Myers wrote: > > I'm posting this RFC for Unicode support in XFS on Olaf's behalf, as he > > is busy with other projects. > > Patch 7 of each series is the trie generator and utf8 normalization > module. Either it's just a little slow or it's over the message size > limit on vger at a little over 100k. Probably, yeah: http://vger.kernel.org/majordomo-info.html " * Message size exceeding 100 000 characters causes blocking. " - z From bpm@sgi.com Thu Sep 18 17:23:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 7E5ED7F37 for ; Thu, 18 Sep 2014 17:23:52 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id BA1FEAC002; Thu, 18 Sep 2014 15:23:48 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 6CC574266DC; Thu, 18 Sep 2014 17:23:48 -0500 (CDT) Date: Thu, 18 Sep 2014 17:23:48 -0500 From: Ben Myers To: Zach Brown Cc: linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS Message-ID: <20140918222348.GC4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140918211010.GB4482@sgi.com> <20140918212417.GF16677@lenny.home.zabbo.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918212417.GF16677@lenny.home.zabbo.net> User-Agent: Mutt/1.5.20 (2009-06-14) On Thu, Sep 18, 2014 at 02:24:17PM -0700, Zach Brown wrote: > On Thu, Sep 18, 2014 at 04:10:10PM -0500, Ben Myers wrote: > > On Thu, Sep 18, 2014 at 02:56:50PM -0500, Ben Myers wrote: > > > I'm posting this RFC for Unicode support in XFS on Olaf's behalf, as he > > > is busy with other projects. > > > > Patch 7 of each series is the trie generator and utf8 normalization > > module. Either it's just a little slow or it's over the message size > > limit on vger at a little over 100k. > > Probably, yeah: > > http://vger.kernel.org/majordomo-info.html > > " > * Message size exceeding 100 000 characters causes blocking. > " D'oh! I'll split it up. Thanks, Ben From mellow@szmellow.com Thu Sep 18 21:40:29 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=2.0 required=5.0 tests=DEAR_SOMETHING, HTML_FONT_FACE_BAD,HTML_MESSAGE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 0EC427F37 for ; Thu, 18 Sep 2014 21:40:29 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 836DCAC003 for ; Thu, 18 Sep 2014 19:40:25 -0700 (PDT) X-ASG-Debug-ID: 1411094420-04cbb0730322650001-NocioJ Received: from smtpbg64.qq.com (smtpbg64.qq.com [103.7.28.238]) by cuda.sgi.com with ESMTP id gtneaNA8afVBKhpD (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 18 Sep 2014 19:40:22 -0700 (PDT) X-Barracuda-Envelope-From: mellow@szmellow.com 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<1409714759-9805-1-git-send-email-bo.li.liu@oracle.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: mail-pd0-f177.google.com[209.85.192.177] X-Barracuda-Start-Time: 1411108672 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9641 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Wed, Sep 03, 2014 at 11:25:59AM +0800, Liu Bo wrote: > From: Liu Bo > > btrfs/012 is a case to verify btrfs-convert feature, it converts an ext4 to > btrfs firstly and do something, then rolls back to ext4. > > So at last we have a ext4 on the scratch device, but setting _require_scratch > will force a btrfsck on a ext4 fs because $FSTYP here is btrfs, and it ends up > with a failure report of _check_btrfs_filesystem. > > Now that we have deliberately check the final ext4 fs in btrfs/012, just do not > set _require_scratch in this case. > > Signed-off-by: Liu Bo > --- > tests/btrfs/012 | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/tests/btrfs/012 b/tests/btrfs/012 > index f7e5da5..12f6462 100755 > --- a/tests/btrfs/012 > +++ b/tests/btrfs/012 > @@ -52,7 +52,6 @@ _cleanup() > # Modify as appropriate. > _supported_fs btrfs > _supported_os Linux > -_require_scratch The test still requires a scratch device, so we cannot simply remove this line. Now we can use _require_scratch_nocheck helper, and it works fine based on my test. Thanks, Eryu > > BTRFS_CONVERT_PROG="`set_prog_path btrfs-convert`" > MKFS_EXT4_PROG="`set_prog_path mkfs.ext4`" > -- > 1.8.1.4 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From prvs=4339409777=jbacik@fb.com Fri Sep 19 10:02:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id EFC777F3F for ; Fri, 19 Sep 2014 10:02:50 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 8D9B0AC006 for ; Fri, 19 Sep 2014 08:02:47 -0700 (PDT) X-ASG-Debug-ID: 1411138963-04bdf003a13eb70001-NocioJ Received: from mx0b-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) by cuda.sgi.com with ESMTP id Ee9bHBlwGCQUGlhD for ; Fri, 19 Sep 2014 08:02:43 -0700 (PDT) X-Barracuda-Envelope-From: prvs=4339409777=jbacik@fb.com X-Barracuda-Apparent-Source-IP: 67.231.153.30 X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] Received: from pps.filterd (m0004060 [127.0.0.1]) by mx0b-00082601.pphosted.com (8.14.5/8.14.5) with SMTP id s8JEpOgd021039; Fri, 19 Sep 2014 08:02:41 -0700 X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=fb.com; h=message-id : date : from : mime-version : to : cc : subject : references : in-reply-to : content-type : content-transfer-encoding; s=facebook; bh=+GiEpT3TmwYoX5PR8OuC34466MeevyUVg04YR69oOFs=; b=KQRm402J7DDcuw/eYwsnlZVvTfu9WVfLtmT+Kh0+x5nDQPRAuDMbrKZVPOpwKqO663Wo 5nCBSdnAV1xeX+UqLOnYVXeZVAK7AF7Mma0LiWrXv8gf72KhQEdognoqT9zf7xzcBXOX Bx1ojHtTlO5mZxknm95jSSj6N1eDt7Eihuo= Received: from mail.thefacebook.com (mailwest.thefacebook.com [173.252.71.148]) by mx0b-00082601.pphosted.com with ESMTP id 1pg4rpbf7j-1 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=OK); Fri, 19 Sep 2014 08:02:41 -0700 Received: from localhost.localdomain (192.168.16.4) by mail.thefacebook.com (192.168.16.13) with Microsoft SMTP Server (TLS) id 14.3.195.1; Fri, 19 Sep 2014 08:02:39 -0700 Message-ID: <541C458E.3080406@fb.com> Date: Fri, 19 Sep 2014 11:02:38 -0400 From: Josef Bacik User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.0 MIME-Version: 1.0 To: Liu Bo , CC: linux-btrfs Subject: Re: [PATCH] xfstests: remove check_scratch_fs in btrfs/012 References: <1409714759-9805-1-git-send-email-bo.li.liu@oracle.com> X-ASG-Orig-Subj: Re: [PATCH] xfstests: remove check_scratch_fs in btrfs/012 In-Reply-To: <1409714759-9805-1-git-send-email-bo.li.liu@oracle.com> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.16.4] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.12.52,1.0.28,0.0.0000 definitions=2014-09-19_06:2014-09-19,2014-09-19,1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 kscore.is_bulkscore=1.1335610228258e-09 kscore.compositescore=0 circleOfTrustscore=222.879571347525 compositescore=0.999738115633958 urlsuspect_oldscore=0.999738115633958 suspectscore=0 recipient_domain_to_sender_totalscore=0 phishscore=0 bulkscore=0 kscore.is_spamscore=0 recipient_to_sender_totalscore=0 recipient_domain_to_sender_domain_totalscore=64355 rbsscore=0.999738115633958 spamscore=0 recipient_to_sender_domain_totalscore=0 urlsuspectscore=0.9 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1402240000 definitions=main-1409190131 X-FB-Internal: deliver X-Barracuda-Connect: mx0b-00082601.pphosted.com[67.231.153.30] X-Barracuda-Start-Time: 1411138963 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 09/02/2014 11:25 PM, Liu Bo wrote: > From: Liu Bo > > btrfs/012 is a case to verify btrfs-convert feature, it converts an ext4 to > btrfs firstly and do something, then rolls back to ext4. > > So at last we have a ext4 on the scratch device, but setting _require_scratch > will force a btrfsck on a ext4 fs because $FSTYP here is btrfs, and it ends up > with a failure report of _check_btrfs_filesystem. > > Now that we have deliberately check the final ext4 fs in btrfs/012, just do not > set _require_scratch in this case. > > Signed-off-by: Liu Bo I sent a patch for this already, it's on the fs-tests list. Thanks, Josef From bpm@sgi.com Fri Sep 19 11:03:54 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD, T_FILL_THIS_FORM_SHORT autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id B7B9D7F4E for ; Fri, 19 Sep 2014 11:03:54 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay2.corp.sgi.com (Postfix) with ESMTP id 6B952304043; Fri, 19 Sep 2014 09:03:51 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id AE2484266DC; Fri, 19 Sep 2014 11:03:50 -0500 (CDT) Date: Fri, 19 Sep 2014 11:03:50 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 07a/10] xfs: add trie generator for UTF-8. Message-ID: <20140919160350.GD4482@sgi.com> References: <20140918195650.GI19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918195650.GI19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber mkutf8data.c is the source for a program that generates utf8data.h, which contains the trie that utf8norm.c uses. The trie is generated from the Unicode 7.0.0 data files. The format of the utf8data[] table is described in utf8norm.c, which is added in the next patch. Signed-off-by: Olaf Weber --- [v2: the trie is now separated into utf8norm.ko; utf8version is now a function and exported; introduced CONFIG_XFS_UTF8; removed supporting code due to vger size constraint. --bpm] --- fs/xfs/Kconfig | 8 + fs/xfs/Makefile | 2 +- fs/xfs/utf8norm/Makefile | 33 + fs/xfs/utf8norm/mkutf8data.c | 3239 ++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 3281 insertions(+), 1 deletion(-) create mode 100644 fs/xfs/utf8norm/Makefile create mode 100644 fs/xfs/utf8norm/mkutf8data.c diff --git a/fs/xfs/Kconfig b/fs/xfs/Kconfig index 5d47b4d..a847857 100644 --- a/fs/xfs/Kconfig +++ b/fs/xfs/Kconfig @@ -95,3 +95,11 @@ config XFS_DEBUG not useful unless you are debugging a particular problem. Say N unless you are an XFS developer, or you play one on TV. + +config XFS_UTF8 + bool "XFS UTF-8 support" + depends on XFS_FS + help + Say Y here to enable utf8 normalization support in XFS. You + will be able to mount and use filesystems created with the + utf8 mkfs.xfs option. diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile index d617999..6d000d3 100644 --- a/fs/xfs/Makefile +++ b/fs/xfs/Makefile @@ -21,7 +21,7 @@ ccflags-y += -I$(src)/libxfs ccflags-$(CONFIG_XFS_DEBUG) += -g -obj-$(CONFIG_XFS_FS) += xfs.o +obj-$(CONFIG_XFS_FS) += xfs.o utf8norm/ # this one should be compiled first, as the tracing macros can easily blow up xfs-y += xfs_trace.o diff --git a/fs/xfs/utf8norm/Makefile b/fs/xfs/utf8norm/Makefile new file mode 100644 index 0000000..9b2efa9 --- /dev/null +++ b/fs/xfs/utf8norm/Makefile @@ -0,0 +1,33 @@ +# +# Copyright (c) 2014 SGI. +# All rights reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +# + +hostprogs-y := mkutf8data +$(obj)/utf8norm.o: $(obj)/utf8data.h +$(obj)/utf8data.h: $(src)/ucd/*.txt +$(obj)/utf8data.h: $(obj)/mkutf8data FORCE + $(call if_changed,mkutf8data) +quiet_cmd_mkutf8data = MKUTF8DATA $@ + cmd_mkutf8data = $(obj)/mkutf8data \ + -a $(src)/ucd/DerivedAge-7.0.0.txt \ + -c $(src)/ucd/DerivedCombiningClass-7.0.0.txt \ + -p $(src)/ucd/DerivedCoreProperties-7.0.0.txt \ + -d $(src)/ucd/UnicodeData-7.0.0.txt \ + -f $(src)/ucd/CaseFolding-7.0.0.txt \ + -n $(src)/ucd/NormalizationCorrections-7.0.0.txt \ + -t $(src)/ucd/NormalizationTest-7.0.0.txt \ + -o $@ diff --git a/fs/xfs/utf8norm/mkutf8data.c b/fs/xfs/utf8norm/mkutf8data.c new file mode 100644 index 0000000..1d6ec02 --- /dev/null +++ b/fs/xfs/utf8norm/mkutf8data.c @@ -0,0 +1,3239 @@ +/* + * Copyright (c) 2014 SGI. + * 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 + */ + +/* Generator for a compact trie for unicode normalization */ + +#include +#include +#include +#include +#include +#include +#include +#include + +/* Default names of the in- and output files. */ + +#define AGE_NAME "DerivedAge.txt" +#define CCC_NAME "DerivedCombiningClass.txt" +#define PROP_NAME "DerivedCoreProperties.txt" +#define DATA_NAME "UnicodeData.txt" +#define FOLD_NAME "CaseFolding.txt" +#define NORM_NAME "NormalizationCorrections.txt" +#define TEST_NAME "NormalizationTest.txt" +#define UTF8_NAME "utf8data.h" + +const char *age_name = AGE_NAME; +const char *ccc_name = CCC_NAME; +const char *prop_name = PROP_NAME; +const char *data_name = DATA_NAME; +const char *fold_name = FOLD_NAME; +const char *norm_name = NORM_NAME; +const char *test_name = TEST_NAME; +const char *utf8_name = UTF8_NAME; + +int verbose = 0; + +/* An arbitrary line size limit on input lines. */ + +#define LINESIZE 1024 +char line[LINESIZE]; +char buf0[LINESIZE]; +char buf1[LINESIZE]; +char buf2[LINESIZE]; +char buf3[LINESIZE]; + +const char *argv0; + +/* ------------------------------------------------------------------ */ + +/* + * Unicode version numbers consist of three parts: major, minor, and a + * revision. These numbers are packed into an unsigned int to obtain + * a single version number. + * + * To save space in the generated trie, the unicode version is not + * stored directly, instead we calculate a generation number from the + * unicode versions seen in the DerivedAge file, and use that as an + * index into a table of unicode versions. + */ +#define UNICODE_MAJ_SHIFT (16) +#define UNICODE_MIN_SHIFT (8) + +#define UNICODE_MAJ_MAX ((unsigned short)-1) +#define UNICODE_MIN_MAX ((unsigned char)-1) +#define UNICODE_REV_MAX ((unsigned char)-1) + +#define UNICODE_AGE(MAJ,MIN,REV) \ + (((unsigned int)(MAJ) << UNICODE_MAJ_SHIFT) | \ + ((unsigned int)(MIN) << UNICODE_MIN_SHIFT) | \ + ((unsigned int)(REV))) + +unsigned int *ages; +int ages_count; + +unsigned int unicode_maxage; + +static int +age_valid(unsigned int major, unsigned int minor, unsigned int revision) +{ + if (major > UNICODE_MAJ_MAX) + return 0; + if (minor > UNICODE_MIN_MAX) + return 0; + if (revision > UNICODE_REV_MAX) + return 0; + return 1; +} + +/* ------------------------------------------------------------------ */ + +/* + * utf8trie_t + * + * A compact binary tree, used to decode UTF-8 characters. + * + * Internal nodes are one byte for the node itself, and up to three + * bytes for an offset into the tree. The first byte contains the + * following information: + * NEXTBYTE - flag - advance to next byte if set + * BITNUM - 3 bit field - the bit number to tested + * OFFLEN - 2 bit field - number of bytes in the offset + * if offlen == 0 (non-branching node) + * RIGHTPATH - 1 bit field - set if the following node is for the + * right-hand path (tested bit is set) + * TRIENODE - 1 bit field - set if the following node is an internal + * node, otherwise it is a leaf node + * if offlen != 0 (branching node) + * LEFTNODE - 1 bit field - set if the left-hand node is internal + * RIGHTNODE - 1 bit field - set if the right-hand node is internal + * + * Due to the way utf8 works, there cannot be branching nodes with + * NEXTBYTE set, and moreover those nodes always have a righthand + * descendant. + */ +typedef unsigned char utf8trie_t; +#define BITNUM 0x07 +#define NEXTBYTE 0x08 +#define OFFLEN 0x30 +#define OFFLEN_SHIFT 4 +#define RIGHTPATH 0x40 +#define TRIENODE 0x80 +#define RIGHTNODE 0x40 +#define LEFTNODE 0x80 + +/* + * utf8leaf_t + * + * The leaves of the trie are embedded in the trie, and so the same + * underlying datatype, unsigned char. + * + * leaf[0]: The unicode version, stored as a generation number that is + * an index into utf8agetab[]. With this we can filter code + * points based on the unicode version in which they were + * defined. The CCC of a non-defined code point is 0. + * leaf[1]: Canonical Combining Class. During normalization, we need + * to do a stable sort into ascending order of all characters + * with a non-zero CCC that occur between two characters with + * a CCC of 0, or at the begin or end of a string. + * The unicode standard guarantees that all CCC values are + * between 0 and 254 inclusive, which leaves 255 available as + * a special value. + * Code points with CCC 0 are known as stoppers. + * leaf[2]: Decomposition. If leaf[1] == 255, then leaf[2] is the + * start of a NUL-terminated string that is the decomposition + * of the character. + * The CCC of a decomposable character is the same as the CCC + * of the first character of its decomposition. + * Some characters decompose as the empty string: these are + * characters with the Default_Ignorable_Code_Point property. + * These do affect normalization, as they all have CCC 0. + * + * The decompositions in the trie have been fully expanded. + * + * Casefolding, if applicable, is also done using decompositions. + */ +typedef unsigned char utf8leaf_t; + +#define LEAF_GEN(LEAF) ((LEAF)[0]) +#define LEAF_CCC(LEAF) ((LEAF)[1]) +#define LEAF_STR(LEAF) ((const char*)((LEAF) + 2)) + +#define MAXGEN (255) + +#define MINCCC (0) +#define MAXCCC (254) +#define STOPPER (0) +#define DECOMPOSE (255) + +struct tree; +static utf8leaf_t *utf8nlookup(struct tree *, const char *, size_t); +static utf8leaf_t *utf8lookup(struct tree *, const char *); + +unsigned char *utf8data; +size_t utf8data_size; + +utf8trie_t *nfkdi; +utf8trie_t *nfkdicf; + +/* ------------------------------------------------------------------ */ + +/* + * UTF8 valid ranges. + * + * The UTF-8 encoding spreads the bits of a 32bit word over several + * bytes. This table gives the ranges that can be held and how they'd + * be represented. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000000 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000000 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * There is an additional requirement on UTF-8, in that only the + * shortest representation of a 32bit value is to be used. A decoder + * must not decode sequences that do not satisfy this requirement. + * Thus the allowed ranges have a lower bound. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000080 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000800 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00010000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00200000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x04000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * Actual unicode characters are limited to the range 0x0 - 0x10FFFF, + * 17 planes of 65536 values. This limits the sequences actually seen + * even more, to just the following. + * + * 0 - 0x7f: 0 0x7f + * 0x80 - 0x7ff: 0xc2 0x80 0xdf 0xbf + * 0x800 - 0xffff: 0xe0 0xa0 0x80 0xef 0xbf 0xbf + * 0x10000 - 0x10ffff: 0xf0 0x90 0x80 0x80 0xf4 0x8f 0xbf 0xbf + * + * Even within those ranges not all values are allowed: the surrogates + * 0xd800 - 0xdfff should never be seen. + * + * Note that the longest sequence seen with valid usage is 4 bytes, + * the same a single UTF-32 character. This makes the UTF-8 + * representation of Unicode strictly smaller than UTF-32. + * + * The shortest sequence requirement was introduced by: + * Corrigendum #1: UTF-8 Shortest Form + * It can be found here: + * http://www.unicode.org/versions/corrigendum1.html + * + */ + +#define UTF8_2_BITS 0xC0 +#define UTF8_3_BITS 0xE0 +#define UTF8_4_BITS 0xF0 +#define UTF8_N_BITS 0x80 +#define UTF8_2_MASK 0xE0 +#define UTF8_3_MASK 0xF0 +#define UTF8_4_MASK 0xF8 +#define UTF8_N_MASK 0xC0 +#define UTF8_V_MASK 0x3F +#define UTF8_V_SHIFT 6 + +static int +utf8key(unsigned int key, char keyval[]) +{ + int keylen; + + if (key < 0x80) { + keyval[0] = key; + keylen = 1; + } else if (key < 0x800) { + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_2_BITS; + keylen = 2; + } else if (key < 0x10000) { + keyval[2] = key & UTF8_V_MASK; + keyval[2] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_3_BITS; + keylen = 3; + } else if (key < 0x110000) { + keyval[3] = key & UTF8_V_MASK; + keyval[3] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[2] = key & UTF8_V_MASK; + keyval[2] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_4_BITS; + keylen = 4; + } else { + printf("%#x: illegal key\n", key); + keylen = 0; + } + return keylen; +} + +static unsigned int +utf8code(const char *str) +{ + const unsigned char *s = (const unsigned char*)str; + unsigned int unichar = 0; + + if (*s < 0x80) { + unichar = *s; + } else if (*s < UTF8_3_BITS) { + unichar = *s++ & 0x1F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s & 0x3F; + } else if (*s < UTF8_4_BITS) { + unichar = *s++ & 0x0F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s++ & 0x3F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s & 0x3F; + } else { + unichar = *s++ & 0x0F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s++ & 0x3F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s++ & 0x3F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s & 0x3F; + } + return unichar; +} + +static int +utf32valid(unsigned int unichar) +{ + return unichar < 0x110000; +} + +#define NODE 1 +#define LEAF 0 + +struct tree { + void *root; + int childnode; + const char *type; + unsigned int maxage; + struct tree *next; + int (*leaf_equal)(void *, void *); + void (*leaf_print)(void *, int); + int (*leaf_mark)(void *); + int (*leaf_size)(void *); + int *(*leaf_index)(struct tree *, void *); + unsigned char *(*leaf_emit)(void *, unsigned char *); + int leafindex[0x110000]; + int index; +}; + +struct node { + int index; + int offset; + int mark; + int size; + struct node *parent; + void *left; + void *right; + unsigned char bitnum; + unsigned char nextbyte; + unsigned char leftnode; + unsigned char rightnode; + unsigned int keybits; + unsigned int keymask; +}; + +/* + * Example lookup function for a tree. + */ +static void * +lookup(struct tree *tree, const char *key) +{ + struct node *node; + void *leaf = NULL; + + node = tree->root; + while (!leaf && node) { + if (node->nextbyte) + key++; + if (*key & (1 << (node->bitnum & 7))) { + /* Right leg */ + if (node->rightnode == NODE) { + node = node->right; + } else if (node->rightnode == LEAF) { + leaf = node->right; + } else { + node = NULL; + } + } else { + /* Left leg */ + if (node->leftnode == NODE) { + node = node->left; + } else if (node->leftnode == LEAF) { + leaf = node->left; + } else { + node = NULL; + } + } + } + + return leaf; +} + +/* + * A simple non-recursive tree walker: keep track of visits to the + * left and right branches in the leftmask and rightmask. + */ +static void +tree_walk(struct tree *tree) +{ + struct node *node; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int indent = 1; + int nodes, singletons, leaves; + + nodes = singletons = leaves = 0; + + printf("%s_%x root %p\n", tree->type, tree->maxage, tree->root); + if (tree->childnode == LEAF) { + assert(tree->root); + tree->leaf_print(tree->root, indent); + leaves = 1; + } else { + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + printf("%*snode @ %p bitnum %d nextbyte %d" + " left %p right %p mask %x bits %x\n", + indent, "", node, + node->bitnum, node->nextbyte, + node->left, node->right, + node->keymask, node->keybits); + nodes += 1; + if (!(node->left && node->right)) + singletons += 1; + + while (node) { + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + tree->leaf_print(node->left, + indent+1); + leaves += 1; + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if ((rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + tree->leaf_print(node->right, + indent+1); + leaves += 1; + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + indent -= 1; + } + } + } + printf("nodes %d leaves %d singletons %d\n", + nodes, leaves, singletons); +} + +/* + * Allocate an initialize a new internal node. + */ +static struct node * +alloc_node(struct node *parent) +{ + struct node *node; + int bitnum; + + node = malloc(sizeof(*node)); + node->left = node->right = NULL; + node->parent = parent; + node->leftnode = NODE; + node->rightnode = NODE; + node->keybits = 0; + node->keymask = 0; + node->mark = 0; + node->index = 0; + node->offset = -1; + node->size = 4; + + if (node->parent) { + bitnum = parent->bitnum; + if ((bitnum & 7) == 0) { + node->bitnum = bitnum + 7 + 8; + node->nextbyte = 1; + } else { + node->bitnum = bitnum - 1; + node->nextbyte = 0; + } + } else { + node->bitnum = 7; + node->nextbyte = 0; + } + + return node; +} + +/* + * Insert a new leaf into the tree, and collapse any subtrees that are + * fully populated and end in identical leaves. A nextbyte tagged + * internal node will not be removed to preserve the tree's integrity. + * Note that due to the structure of utf8, no nextbyte tagged node + * will be a candidate for removal. + */ +static int +insert(struct tree *tree, char *key, int keylen, void *leaf) +{ + struct node *node; + struct node *parent; + void **cursor; + int keybits; + + assert(keylen >= 1 && keylen <= 4); + + node = NULL; + cursor = &tree->root; + keybits = 8 * keylen; + + /* Insert, creating path along the way. */ + while (keybits) { + if (!*cursor) + *cursor = alloc_node(node); + node = *cursor; + if (node->nextbyte) + key++; + if (*key & (1 << (node->bitnum & 7))) + cursor = &node->right; + else + cursor = &node->left; + keybits--; + } + *cursor = leaf; + + /* Merge subtrees if possible. */ + while (node) { + if (*key & (1 << (node->bitnum & 7))) + node->rightnode = LEAF; + else + node->leftnode = LEAF; + if (node->nextbyte) + break; + if (node->leftnode == NODE || node->rightnode == NODE) + break; + assert(node->left); + assert(node->right); + /* Compare */ + if (! tree->leaf_equal(node->left, node->right)) + break; + /* Keep left, drop right leaf. */ + leaf = node->left; + /* Check in parent */ + parent = node->parent; + if (!parent) { + /* root of tree! */ + tree->root = leaf; + tree->childnode = LEAF; + } else if (parent->left == node) { + parent->left = leaf; + parent->leftnode = LEAF; + if (parent->right) { + parent->keymask = 0; + parent->keybits = 0; + } else { + parent->keymask |= (1 << node->bitnum); + } + } else if (parent->right == node) { + parent->right = leaf; + parent->rightnode = LEAF; + if (parent->left) { + parent->keymask = 0; + parent->keybits = 0; + } else { + parent->keymask |= (1 << node->bitnum); + parent->keybits |= (1 << node->bitnum); + } + } else { + /* internal tree error */ + assert(0); + } + free(node); + node = parent; + } + + /* Propagate keymasks up along singleton chains. */ + while (node) { + parent = node->parent; + if (!parent) + break; + /* Nix the mask for parents with two children. */ + if (node->keymask == 0) { + parent->keymask = 0; + parent->keybits = 0; + } else if (parent->left && parent->right) { + parent->keymask = 0; + parent->keybits = 0; + } else { + assert((parent->keymask & node->keymask) == 0); + parent->keymask |= node->keymask; + parent->keymask |= (1 << parent->bitnum); + parent->keybits |= node->keybits; + if (parent->right) + parent->keybits |= (1 << parent->bitnum); + } + node = parent; + } + + return 0; +} + +/* + * Prune internal nodes. + * + * Fully populated subtrees that end at the same leaf have already + * been collapsed. There are still internal nodes that have for both + * their left and right branches a sequence of singletons that make + * identical choices and end in identical leaves. The keymask and + * keybits collected in the nodes describe the choices made in these + * singleton chains. When they are identical for the left and right + * branch of a node, and the two leaves comare identical, the node in + * question can be removed. + * + * Note that nodes with the nextbyte tag set will not be removed by + * this to ensure tree integrity. Note as well that the structure of + * utf8 ensures that these nodes would not have been candidates for + * removal in any case. + */ +static void +prune(struct tree *tree) +{ + struct node *node; + struct node *left; + struct node *right; + struct node *parent; + void *leftleaf; + void *rightleaf; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int count; + + if (verbose > 0) + printf("Pruning %s_%x\n", tree->type, tree->maxage); + + count = 0; + if (tree->childnode == LEAF) + return; + if (!tree->root) + return; + + leftmask = rightmask = 0; + node = tree->root; + while (node) { + if (node->nextbyte) + goto advance; + if (node->leftnode == LEAF) + goto advance; + if (node->rightnode == LEAF) + goto advance; + if (!node->left) + goto advance; + if (!node->right) + goto advance; + left = node->left; + right = node->right; + if (left->keymask == 0) + goto advance; + if (right->keymask == 0) + goto advance; + if (left->keymask != right->keymask) + goto advance; + if (left->keybits != right->keybits) + goto advance; + leftleaf = NULL; + while (!leftleaf) { + assert(left->left || left->right); + if (left->leftnode == LEAF) + leftleaf = left->left; + else if (left->rightnode == LEAF) + leftleaf = left->right; + else if (left->left) + left = left->left; + else if (left->right) + left = left->right; + else + assert(0); + } + rightleaf = NULL; + while (!rightleaf) { + assert(right->left || right->right); + if (right->leftnode == LEAF) + rightleaf = right->left; + else if (right->rightnode == LEAF) + rightleaf = right->right; + else if (right->left) + right = right->left; + else if (right->right) + right = right->right; + else + assert(0); + } + if (! tree->leaf_equal(leftleaf, rightleaf)) + goto advance; + /* + * This node has identical singleton-only subtrees. + * Remove it. + */ + parent = node->parent; + left = node->left; + right = node->right; + if (parent->left == node) + parent->left = left; + else if (parent->right == node) + parent->right = left; + else + assert(0); + left->parent = parent; + left->keymask |= (1 << node->bitnum); + node->left = NULL; + while (node) { + bitmask = 1 << node->bitnum; + leftmask &= ~bitmask; + rightmask &= ~bitmask; + if (node->leftnode == NODE && node->left) { + left = node->left; + free(node); + count++; + node = left; + } else if (node->rightnode == NODE && node->right) { + right = node->right; + free(node); + count++; + node = right; + } else { + node = NULL; + } + } + /* Propagate keymasks up along singleton chains. */ + node = parent; + /* Force re-check */ + bitmask = 1 << node->bitnum; + leftmask &= ~bitmask; + rightmask &= ~bitmask; + for (;;) { + if (node->left && node->right) + break; + if (node->left) { + left = node->left; + node->keymask |= left->keymask; + node->keybits |= left->keybits; + } + if (node->right) { + right = node->right; + node->keymask |= right->keymask; + node->keybits |= right->keybits; + } + node->keymask |= (1 << node->bitnum); + node = node->parent; + /* Force re-check */ + bitmask = 1 << node->bitnum; + leftmask &= ~bitmask; + rightmask &= ~bitmask; + } + advance: + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0 && + node->leftnode == NODE && + node->left) { + leftmask |= bitmask; + node = node->left; + } else if ((rightmask & bitmask) == 0 && + node->rightnode == NODE && + node->right) { + rightmask |= bitmask; + node = node->right; + } else { + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + } + } + if (verbose > 0) + printf("Pruned %d nodes\n", count); +} + +/* + * Mark the nodes in the tree that lead to leaves that must be + * emitted. + */ +static void +mark_nodes(struct tree *tree) +{ + struct node *node; + struct node *n; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int marked; + + marked = 0; + if (verbose > 0) + printf("Marking %s_%x\n", tree->type, tree->maxage); + if (tree->childnode == LEAF) + goto done; + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + if (tree->leaf_mark(node->left)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->left) { + assert(node->leftnode == NODE); + node = node->left; + continue; + } + } + if ((rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + if (tree->leaf_mark(node->right)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->right) { + assert(node->rightnode==NODE); + node = node->right; + continue; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + } + + /* second pass: left siblings and singletons */ + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + if (tree->leaf_mark(node->left)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->left) { + assert(node->leftnode == NODE); + node = node->left; + if (!node->mark && node->parent->mark) { + marked++; + node->mark = 1; + } + continue; + } + } + if ((rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + if (tree->leaf_mark(node->right)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->right) { + assert(node->rightnode==NODE); + node = node->right; + if (!node->mark && node->parent->mark && + !node->parent->left) { + marked++; + node->mark = 1; + } + continue; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + } +done: + if (verbose > 0) + printf("Marked %d nodes\n", marked); +} + +/* + * Compute the index of each node and leaf, which is the offset in the + * emitted trie. These value must be pre-computed because relative + * offsets between nodes are used to navigate the tree. + */ +static int +index_nodes(struct tree *tree, int index) +{ + struct node *node; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int count; + int indent; + + /* Align to a cache line (or half a cache line?). */ + while (index % 64) + index++; + tree->index = index; + indent = 1; + count = 0; + + if (verbose > 0) + printf("Indexing %s_%x: %d", tree->type, tree->maxage, index); + if (tree->childnode == LEAF) { + index += tree->leaf_size(tree->root); + goto done; + } + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + if (!node->mark) + goto skip; + count++; + if (node->index != index) + node->index = index; + index += node->size; +skip: + while (node) { + bitmask = 1 << node->bitnum; + if (node->mark && (leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + *tree->leaf_index(tree, node->left) = + index; + index += tree->leaf_size(node->left); + count++; + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if (node->mark && (rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + *tree->leaf_index(tree, node->right) = index; + index += tree->leaf_size(node->right); + count++; + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + indent -= 1; + } + } +done: + /* Round up to a multiple of 16 */ + while (index % 16) + index++; + if (verbose > 0) + printf("Final index %d\n", index); + return index; +} + +/* + * Compute the size of nodes and leaves. We start by assuming that + * each node needs to store a three-byte offset. The indexes of the + * nodes are calculated based on that, and then this function is + * called to see if the sizes of some nodes can be reduced. This is + * repeated until no more changes are seen. + */ +static int +size_nodes(struct tree *tree) +{ + struct tree *next; + struct node *node; + struct node *right; + struct node *n; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + unsigned int pathbits; + unsigned int pathmask; + int changed; + int offset; + int size; + int indent; + + indent = 1; + changed = 0; + size = 0; + + if (verbose > 0) + printf("Sizing %s_%x", tree->type, tree->maxage); + if (tree->childnode == LEAF) + goto done; + + assert(tree->childnode == NODE); + pathbits = 0; + pathmask = 0; + node = tree->root; + leftmask = rightmask = 0; + while (node) { + if (!node->mark) + goto skip; + offset = 0; + if (!node->left || !node->right) { + size = 1; + } else { + if (node->rightnode == NODE) { + right = node->right; + next = tree->next; + while (!right->mark) { + assert(next); + n = next->root; + while (n->bitnum != node->bitnum) { + if (pathbits & (1<bitnum)) + n = n->right; + else + n = n->left; + } + n = n->right; + assert(right->bitnum == n->bitnum); + right = n; + next = next->next; + } + offset = right->index - node->index; + } else { + offset = *tree->leaf_index(tree, node->right); + offset -= node->index; + } + assert(offset >= 0); + assert(offset <= 0xffffff); + if (offset <= 0xff) { + size = 2; + } else if (offset <= 0xffff) { + size = 3; + } else { /* offset <= 0xffffff */ + size = 4; + } + } + if (node->size != size || node->offset != offset) { + node->size = size; + node->offset = offset; + changed++; + } +skip: + while (node) { + bitmask = 1 << node->bitnum; + pathmask |= bitmask; + if (node->mark && (leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if (node->mark && (rightmask & bitmask) == 0) { + rightmask |= bitmask; + pathbits |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + pathmask &= ~bitmask; + pathbits &= ~bitmask; + node = node->parent; + indent -= 1; + } + } +done: + if (verbose > 0) + printf("Found %d changes\n", changed); + return changed; +} + +/* + * Emit a trie for the given tree into the data array. + */ +static void +emit(struct tree *tree, unsigned char *data) +{ + struct node *node; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int offlen; + int offset; + int index; + int indent; + unsigned char byte; + + index = tree->index; + data += index; + indent = 1; + if (verbose > 0) + printf("Emitting %s_%x\n", tree->type, tree->maxage); + if (tree->childnode == LEAF) { + assert(tree->root); + tree->leaf_emit(tree->root, data); + return; + } + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + if (!node->mark) + goto skip; + assert(node->offset != -1); + assert(node->index == index); + + byte = 0; + if (node->nextbyte) + byte |= NEXTBYTE; + byte |= (node->bitnum & BITNUM); + if (node->left && node->right) { + if (node->leftnode == NODE) + byte |= LEFTNODE; + if (node->rightnode == NODE) + byte |= RIGHTNODE; + if (node->offset <= 0xff) + offlen = 1; + else if (node->offset <= 0xffff) + offlen = 2; + else + offlen = 3; + offset = node->offset; + byte |= offlen << OFFLEN_SHIFT; + *data++ = byte; + index++; + while (offlen--) { + *data++ = offset & 0xff; + index++; + offset >>= 8; + } + } else if (node->left) { + if (node->leftnode == NODE) + byte |= TRIENODE; + *data++ = byte; + index++; + } else if (node->right) { + byte |= RIGHTNODE; + if (node->rightnode == NODE) + byte |= TRIENODE; + *data++ = byte; + index++; + } else { + assert(0); + } +skip: + while (node) { + bitmask = 1 << node->bitnum; + if (node->mark && (leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + data = tree->leaf_emit(node->left, + data); + index += tree->leaf_size(node->left); + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if (node->mark && (rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + data = tree->leaf_emit(node->right, + data); + index += tree->leaf_size(node->right); + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + indent -= 1; + } + } +} + +/* ------------------------------------------------------------------ */ + +/* + * Unicode data. + * + * We need to keep track of the Canonical Combining Class, the Age, + * and decompositions for a code point. + * + * For the Age, we store the index into the ages table. Effectively + * this is a generation number that the table maps to a unicode + * version. + * + * The correction field is used to indicate that this entry is in the + * corrections array, which contains decompositions that were + * corrected in later revisions. The value of the correction field is + * the Unicode version in which the mapping was corrected. + */ +struct unicode_data { + unsigned int code; + int ccc; + int gen; + int correction; + unsigned int *utf32nfkdi; + unsigned int *utf32nfkdicf; + char *utf8nfkdi; + char *utf8nfkdicf; +}; + +struct unicode_data unicode_data[0x110000]; +struct unicode_data *corrections; +int corrections_count; + +struct tree *nfkdi_tree; +struct tree *nfkdicf_tree; + +struct tree *trees; +int trees_count; + +/* + * Check the corrections array to see if this entry was corrected at + * some point. + */ +static struct unicode_data * +corrections_lookup(struct unicode_data *u) +{ + int i; + + for (i = 0; i != corrections_count; i++) + if (u->code == corrections[i].code) + return &corrections[i]; + return u; +} + +static int +nfkdi_equal(void *l, void *r) +{ + struct unicode_data *left = l; + struct unicode_data *right = r; + + if (left->gen != right->gen) + return 0; + if (left->ccc != right->ccc) + return 0; + if (left->utf8nfkdi && right->utf8nfkdi && + strcmp(left->utf8nfkdi, right->utf8nfkdi) == 0) + return 1; + if (left->utf8nfkdi || right->utf8nfkdi) + return 0; + return 1; +} + +static int +nfkdicf_equal(void *l, void *r) +{ + struct unicode_data *left = l; + struct unicode_data *right = r; + + if (left->gen != right->gen) + return 0; + if (left->ccc != right->ccc) + return 0; + if (left->utf8nfkdicf && right->utf8nfkdicf && + strcmp(left->utf8nfkdicf, right->utf8nfkdicf) == 0) + return 1; + if (left->utf8nfkdicf && right->utf8nfkdicf) + return 0; + if (left->utf8nfkdicf || right->utf8nfkdicf) + return 0; + if (left->utf8nfkdi && right->utf8nfkdi && + strcmp(left->utf8nfkdi, right->utf8nfkdi) == 0) + return 1; + if (left->utf8nfkdi || right->utf8nfkdi) + return 0; + return 1; +} + +static void +nfkdi_print(void *l, int indent) +{ + struct unicode_data *leaf = l; + + printf("%*sleaf @ %p code %X ccc %d gen %d", indent, "", leaf, + leaf->code, leaf->ccc, leaf->gen); + if (leaf->utf8nfkdi) + printf(" nfkdi \"%s\"", (const char*)leaf->utf8nfkdi); + printf("\n"); +} + +static void +nfkdicf_print(void *l, int indent) +{ + struct unicode_data *leaf = l; + + printf("%*sleaf @ %p code %X ccc %d gen %d", indent, "", leaf, + leaf->code, leaf->ccc, leaf->gen); + if (leaf->utf8nfkdicf) + printf(" nfkdicf \"%s\"", (const char*)leaf->utf8nfkdicf); + else if (leaf->utf8nfkdi) + printf(" nfkdi \"%s\"", (const char*)leaf->utf8nfkdi); + printf("\n"); +} + +static int +nfkdi_mark(void *l) +{ + return 1; +} + +static int +nfkdicf_mark(void *l) +{ + struct unicode_data *leaf = l; + + if (leaf->utf8nfkdicf) + return 1; + return 0; +} + +static int +correction_mark(void *l) +{ + struct unicode_data *leaf = l; + + return leaf->correction; +} + +static int +nfkdi_size(void *l) +{ + struct unicode_data *leaf = l; + + int size = 2; + if (leaf->utf8nfkdi) + size += strlen(leaf->utf8nfkdi) + 1; + return size; +} + +static int +nfkdicf_size(void *l) +{ + struct unicode_data *leaf = l; + + int size = 2; + if (leaf->utf8nfkdicf) + size += strlen(leaf->utf8nfkdicf) + 1; + else if (leaf->utf8nfkdi) + size += strlen(leaf->utf8nfkdi) + 1; + return size; +} + +static int * +nfkdi_index(struct tree *tree, void *l) +{ + struct unicode_data *leaf = l; + + return &tree->leafindex[leaf->code]; +} + +static int * +nfkdicf_index(struct tree *tree, void *l) +{ + struct unicode_data *leaf = l; + + return &tree->leafindex[leaf->code]; +} + +static unsigned char * +nfkdi_emit(void *l, unsigned char *data) +{ + struct unicode_data *leaf = l; + unsigned char *s; + + *data++ = leaf->gen; + if (leaf->utf8nfkdi) { + *data++ = DECOMPOSE; + s = (unsigned char*)leaf->utf8nfkdi; + while ((*data++ = *s++) != 0) + ; + } else { + *data++ = leaf->ccc; + } + return data; +} + +static unsigned char * +nfkdicf_emit(void *l, unsigned char *data) +{ + struct unicode_data *leaf = l; + unsigned char *s; + + *data++ = leaf->gen; + if (leaf->utf8nfkdicf) { + *data++ = DECOMPOSE; + s = (unsigned char*)leaf->utf8nfkdicf; + while ((*data++ = *s++) != 0) + ; + } else if (leaf->utf8nfkdi) { + *data++ = DECOMPOSE; + s = (unsigned char*)leaf->utf8nfkdi; + while ((*data++ = *s++) != 0) + ; + } else { + *data++ = leaf->ccc; + } + return data; +} + +static void +utf8_create(struct unicode_data *data) +{ + char utf[18*4+1]; + char *u; + unsigned int *um; + int i; + + u = utf; + um = data->utf32nfkdi; + if (um) { + for (i = 0; um[i]; i++) + u += utf8key(um[i], u); + *u = '\0'; + data->utf8nfkdi = strdup((char*)utf); + } + u = utf; + um = data->utf32nfkdicf; + if (um) { + for (i = 0; um[i]; i++) + u += utf8key(um[i], u); + *u = '\0'; + if (!data->utf8nfkdi || strcmp(data->utf8nfkdi, (char*)utf)) + data->utf8nfkdicf = strdup((char*)utf); + } +} + +static void +utf8_init(void) +{ + unsigned int unichar; + int i; + + for (unichar = 0; unichar != 0x110000; unichar++) + utf8_create(&unicode_data[unichar]); + + for (i = 0; i != corrections_count; i++) + utf8_create(&corrections[i]); +} + +static void +trees_init(void) +{ + struct unicode_data *data; + unsigned int maxage; + unsigned int nextage; + int count; + int i; + int j; + + /* Count the number of different ages. */ + count = 0; + nextage = (unsigned int)-1; + do { + maxage = nextage; + nextage = 0; + for (i = 0; i <= corrections_count; i++) { + data = &corrections[i]; + if (nextage < data->correction && + data->correction < maxage) + nextage = data->correction; + } + count++; + } while (nextage); + + /* Two trees per age: nfkdi and nfkdicf */ + trees_count = count * 2; + trees = calloc(trees_count, sizeof(struct tree)); + + /* Assign ages to the trees. */ + count = trees_count; + nextage = (unsigned int)-1; + do { + maxage = nextage; + trees[--count].maxage = maxage; + trees[--count].maxage = maxage; + nextage = 0; + for (i = 0; i <= corrections_count; i++) { + data = &corrections[i]; + if (nextage < data->correction && + data->correction < maxage) + nextage = data->correction; + } + } while (nextage); + + /* The ages assigned above are off by one. */ + for (i = 0; i != trees_count; i++) { + j = 0; + while (ages[j] < trees[i].maxage) + j++; + trees[i].maxage = ages[j-1]; + } + + /* Set up the forwarding between trees. */ + trees[trees_count-2].next = &trees[trees_count-1]; + trees[trees_count-1].leaf_mark = nfkdi_mark; + trees[trees_count-2].leaf_mark = nfkdicf_mark; + for (i = 0; i != trees_count-2; i += 2) { + trees[i].next = &trees[trees_count-2]; + trees[i].leaf_mark = correction_mark; + trees[i+1].next = &trees[trees_count-1]; + trees[i+1].leaf_mark = correction_mark; + } + + /* Assign the callouts. */ + for (i = 0; i != trees_count; i += 2) { + trees[i].type = "nfkdicf"; + trees[i].leaf_equal = nfkdicf_equal; + trees[i].leaf_print = nfkdicf_print; + trees[i].leaf_size = nfkdicf_size; + trees[i].leaf_index = nfkdicf_index; + trees[i].leaf_emit = nfkdicf_emit; + + trees[i+1].type = "nfkdi"; + trees[i+1].leaf_equal = nfkdi_equal; + trees[i+1].leaf_print = nfkdi_print; + trees[i+1].leaf_size = nfkdi_size; + trees[i+1].leaf_index = nfkdi_index; + trees[i+1].leaf_emit = nfkdi_emit; + } + + /* Finish init. */ + for (i = 0; i != trees_count; i++) + trees[i].childnode = NODE; +} + +static void +trees_populate(void) +{ + struct unicode_data *data; + unsigned int unichar; + char keyval[4]; + int keylen; + int i; + + for (i = 0; i != trees_count; i++) { + if (verbose > 0) { + printf("Populating %s_%x\n", + trees[i].type, trees[i].maxage); + } + for (unichar = 0; unichar != 0x110000; unichar++) { + if (unicode_data[unichar].gen < 0) + continue; + keylen = utf8key(unichar, keyval); + data = corrections_lookup(&unicode_data[unichar]); + if (data->correction <= trees[i].maxage) + data = &unicode_data[unichar]; + insert(&trees[i], keyval, keylen, data); + } + } +} + +static void +trees_reduce(void) +{ + int i; + int size; + int changed; + + for (i = 0; i != trees_count; i++) + prune(&trees[i]); + for (i = 0; i != trees_count; i++) + mark_nodes(&trees[i]); + do { + size = 0; + for (i = 0; i != trees_count; i++) + size = index_nodes(&trees[i], size); + changed = 0; + for (i = 0; i != trees_count; i++) + changed += size_nodes(&trees[i]); + } while (changed); + + utf8data = calloc(size, 1); + utf8data_size = size; + for (i = 0; i != trees_count; i++) + emit(&trees[i], utf8data); + + if (verbose > 0) { + for (i = 0; i != trees_count; i++) { + printf("%s_%x idx %d\n", + trees[i].type, trees[i].maxage, trees[i].index); + } + } + + nfkdi = utf8data + trees[trees_count-1].index; + nfkdicf = utf8data + trees[trees_count-2].index; + + nfkdi_tree = &trees[trees_count-1]; + nfkdicf_tree = &trees[trees_count-2]; +} + +static void +verify(struct tree *tree) +{ + struct unicode_data *data; + utf8leaf_t *leaf; + unsigned int unichar; + char key[4]; + int report; + int nocf; + + if (verbose > 0) + printf("Verifying %s_%x\n", tree->type, tree->maxage); + nocf = strcmp(tree->type, "nfkdicf"); + + for (unichar = 0; unichar != 0x110000; unichar++) { + report = 0; + data = corrections_lookup(&unicode_data[unichar]); + if (data->correction <= tree->maxage) + data = &unicode_data[unichar]; + utf8key(unichar, key); + leaf = utf8lookup(tree, key); + if (!leaf) { + if (data->gen != -1) + report++; + if (unichar < 0xd800 || unichar > 0xdfff) + report++; + } else { + if (unichar >= 0xd800 && unichar <= 0xdfff) + report++; + if (data->gen == -1) + report++; + if (data->gen != LEAF_GEN(leaf)) + report++; + if (LEAF_CCC(leaf) == DECOMPOSE) { + if (nocf) { + if (!data->utf8nfkdi) { + report++; + } else if (strcmp(data->utf8nfkdi, + LEAF_STR(leaf))) { + report++; + } + } else { + if (!data->utf8nfkdicf && + !data->utf8nfkdi) { + report++; + } else if (data->utf8nfkdicf) { + if (strcmp(data->utf8nfkdicf, + LEAF_STR(leaf))) + report++; + } else if (strcmp(data->utf8nfkdi, + LEAF_STR(leaf))) { + report++; + } + } + } else if (data->ccc != LEAF_CCC(leaf)) { + report++; + } + } + if (report) { + printf("%X code %X gen %d ccc %d" + " nfdki -> \"%s\"", + unichar, data->code, data->gen, + data->ccc, + data->utf8nfkdi); + if (leaf) { + printf(" age %d ccc %d" + " nfdki -> \"%s\"\n", + LEAF_GEN(leaf), + LEAF_CCC(leaf), + LEAF_CCC(leaf) == DECOMPOSE ? + LEAF_STR(leaf) : ""); + } + printf("\n"); + } + } +} + +static void +trees_verify(void) +{ + int i; + + for (i = 0; i != trees_count; i++) + verify(&trees[i]); +} + +/* ------------------------------------------------------------------ */ + +static void +help(void) +{ + printf("Usage: %s [options]\n", argv0); + printf("\n"); + printf("This program creates an a data trie used for parsing and\n"); + printf("normalization of UTF-8 strings. The trie is derived from\n"); + printf("a set of input files from the Unicode character database\n"); + printf("found at: http://www.unicode.org/Public/UCD/latest/ucd/\n"); + printf("\n"); + printf("The generated tree supports two normalization forms:\n"); + printf("\n"); + printf("\tnfkdi:\n"); + printf("\t- Apply unicode normalization form NFKD.\n"); + printf("\t- Remove any Default_Ignorable_Code_Point.\n"); + printf("\n"); + printf("\tnfkdicf:\n"); + printf("\t- Apply unicode normalization form NFKD.\n"); + printf("\t- Remove any Default_Ignorable_Code_Point.\n"); + printf("\t- Apply a full casefold (C + F).\n"); + printf("\n"); + printf("These forms were chosen as being most useful when dealing\n"); + printf("with file names: NFKD catches most cases where characters\n"); + printf("should be considered equivalent. The ignorables are mostly\n"); + printf("invisible, making names hard to type.\n"); + printf("\n"); + printf("The options to specify the files to be used are listed\n"); + printf("below with their default values, which are the names used\n"); + printf("by version 7.0.0 of the Unicode Character Database.\n"); + printf("\n"); + printf("The input files:\n"); + printf("\t-a %s\n", AGE_NAME); + printf("\t-c %s\n", CCC_NAME); + printf("\t-p %s\n", PROP_NAME); + printf("\t-d %s\n", DATA_NAME); + printf("\t-f %s\n", FOLD_NAME); + printf("\t-n %s\n", NORM_NAME); + printf("\n"); + printf("Additionally, the generated tables are tested using:\n"); + printf("\t-t %s\n", TEST_NAME); + printf("\n"); + printf("Finally, the output file:\n"); + printf("\t-o %s\n", UTF8_NAME); + printf("\n"); +} + +static void +usage(void) +{ + help(); + exit(1); +} + +static void +open_fail(const char *name, int error) +{ + printf("Error %d opening %s: %s\n", error, name, strerror(error)); + exit(1); +} + +static void +file_fail(const char *filename) +{ + printf("Error parsing %s\n", filename); + exit(1); +} + +static void +line_fail(const char *filename, const char *line) +{ + printf("Error parsing %s:%s\n", filename, line); + exit(1); +} + +/* ------------------------------------------------------------------ */ + +static void +print_utf32(unsigned int *utf32str) +{ + int i; + + for (i = 0; utf32str[i]; i++) + printf(" %X", utf32str[i]); +} + +static void +print_utf32nfkdi(unsigned int unichar) +{ + printf(" %X ->", unichar); + print_utf32(unicode_data[unichar].utf32nfkdi); + printf("\n"); +} + +static void +print_utf32nfkdicf(unsigned int unichar) +{ + printf(" %X ->", unichar); + print_utf32(unicode_data[unichar].utf32nfkdicf); + printf("\n"); +} + +/* ------------------------------------------------------------------ */ + +static void +age_init(void) +{ + FILE *file; + unsigned int first; + unsigned int last; + unsigned int unichar; + unsigned int major; + unsigned int minor; + unsigned int revision; + int gen; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", age_name); + + file = fopen(age_name, "r"); + if (!file) + open_fail(age_name, errno); + count = 0; + + gen = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "# Age=V%d_%d_%d", + &major, &minor, &revision); + if (ret == 3) { + ages_count++; + if (verbose > 1) + printf(" Age V%d_%d_%d\n", + major, minor, revision); + if (!age_valid(major, minor, revision)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "# Age=V%d_%d", &major, &minor); + if (ret == 2) { + ages_count++; + if (verbose > 1) + printf(" Age V%d_%d\n", major, minor); + if (!age_valid(major, minor, 0)) + line_fail(age_name, line); + continue; + } + } + + /* We must have found something above. */ + if (verbose > 1) + printf("%d age entries\n", ages_count); + if (ages_count == 0 || ages_count > MAXGEN) + file_fail(age_name); + + /* There is a 0 entry. */ + ages_count++; + ages = calloc(ages_count + 1, sizeof(*ages)); + /* And a guard entry. */ + ages[ages_count] = (unsigned int)-1; + + rewind(file); + count = 0; + gen = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "# Age=V%d_%d_%d", + &major, &minor, &revision); + if (ret == 3) { + ages[++gen] = + UNICODE_AGE(major, minor, revision); + if (verbose > 1) + printf(" Age V%d_%d_%d = gen %d\n", + major, minor, revision, gen); + if (!age_valid(major, minor, revision)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "# Age=V%d_%d", &major, &minor); + if (ret == 2) { + ages[++gen] = UNICODE_AGE(major, minor, 0); + if (verbose > 1) + printf(" Age V%d_%d = %d\n", + major, minor, gen); + if (!age_valid(major, minor, 0)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "%X..%X ; %d.%d #", + &first, &last, &major, &minor); + if (ret == 4) { + for (unichar = first; unichar <= last; unichar++) + unicode_data[unichar].gen = gen; + count += 1 + last - first; + if (verbose > 1) + printf(" %X..%X gen %d\n", first, last, gen); + if (!utf32valid(first) || !utf32valid(last)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "%X ; %d.%d #", &unichar, &major, &minor); + if (ret == 3) { + unicode_data[unichar].gen = gen; + count++; + if (verbose > 1) + printf(" %X gen %d\n", unichar, gen); + if (!utf32valid(unichar)) + line_fail(age_name, line); + continue; + } + } + unicode_maxage = ages[gen]; + fclose(file); + + /* Nix surrogate block */ + if (verbose > 1) + printf(" Removing surrogate block D800..DFFF\n"); + for (unichar = 0xd800; unichar <= 0xdfff; unichar++) + unicode_data[unichar].gen = -1; + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(age_name); +} + +static void +ccc_init(void) +{ + FILE *file; + unsigned int first; + unsigned int last; + unsigned int unichar; + unsigned int value; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", ccc_name); + + file = fopen(ccc_name, "r"); + if (!file) + open_fail(ccc_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X..%X ; %d #", &first, &last, &value); + if (ret == 3) { + for (unichar = first; unichar <= last; unichar++) { + unicode_data[unichar].ccc = value; + count++; + } + if (verbose > 1) + printf(" %X..%X ccc %d\n", first, last, value); + if (!utf32valid(first) || !utf32valid(last)) + line_fail(ccc_name, line); + continue; + } + ret = sscanf(line, "%X ; %d #", &unichar, &value); + if (ret == 2) { + unicode_data[unichar].ccc = value; + count++; + if (verbose > 1) + printf(" %X ccc %d\n", unichar, value); + if (!utf32valid(unichar)) + line_fail(ccc_name, line); + continue; + } + } + fclose(file); + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(ccc_name); +} + +static void +nfkdi_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + char *s; + unsigned int *um; + int count; + int i; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", data_name); + file = fopen(data_name, "r"); + if (!file) + open_fail(data_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X;%*[^;];%*[^;];%*[^;];%*[^;];%[^;];", + &unichar, buf0); + if (ret != 2) + continue; + if (!utf32valid(unichar)) + line_fail(data_name, line); + + s = buf0; + /* skip over */ + if (*s == '<') + while (*s++ != ' ') + ; + /* decode the decomposition into UTF-32 */ + i = 0; + while (*s) { + mapping[i] = strtoul(s, &s, 16); + if (!utf32valid(mapping[i])) + line_fail(data_name, line); + i++; + } + mapping[i++] = 0; + + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdi = um; + + if (verbose > 1) + print_utf32nfkdi(unichar); + count++; + } + fclose(file); + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(data_name); +} + +static void +nfkdicf_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + char status; + char *s; + unsigned int *um; + int i; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", fold_name); + file = fopen(fold_name, "r"); + if (!file) + open_fail(fold_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X; %c; %[^;];", &unichar, &status, buf0); + if (ret != 3) + continue; + if (!utf32valid(unichar)) + line_fail(fold_name, line); + /* Use the C+F casefold. */ + if (status != 'C' && status != 'F') + continue; + s = buf0; + if (*s == '<') + while (*s++ != ' ') + ; + i = 0; + while (*s) { + mapping[i] = strtoul(s, &s, 16); + if (!utf32valid(mapping[i])) + line_fail(fold_name, line); + i++; + } + mapping[i++] = 0; + + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + + if (verbose > 1) + print_utf32nfkdicf(unichar); + count++; + } + fclose(file); + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(fold_name); +} + +static void +ignore_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int first; + unsigned int last; + unsigned int *um; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", prop_name); + file = fopen(prop_name, "r"); + if (!file) + open_fail(prop_name, errno); + assert(file); + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X..%X ; %s # ", &first, &last, buf0); + if (ret == 3) { + if (strcmp(buf0, "Default_Ignorable_Code_Point")) + continue; + if (!utf32valid(first) || !utf32valid(last)) + line_fail(prop_name, line); + for (unichar = first; unichar <= last; unichar++) { + free(unicode_data[unichar].utf32nfkdi); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdi = um; + free(unicode_data[unichar].utf32nfkdicf); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdicf = um; + count++; + } + if (verbose > 1) + printf(" %X..%X Default_Ignorable_Code_Point\n", + first, last); + continue; + } + ret = sscanf(line, "%X ; %s # ", &unichar, buf0); + if (ret == 2) { + if (strcmp(buf0, "Default_Ignorable_Code_Point")) + continue; + if (!utf32valid(unichar)) + line_fail(prop_name, line); + free(unicode_data[unichar].utf32nfkdi); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdi = um; + free(unicode_data[unichar].utf32nfkdicf); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdicf = um; + if (verbose > 1) + printf(" %X Default_Ignorable_Code_Point\n", + unichar); + count++; + continue; + } + } + fclose(file); + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(prop_name); +} + +static void +corrections_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int major; + unsigned int minor; + unsigned int revision; + unsigned int age; + unsigned int *um; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + char *s; + int i; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", norm_name); + file = fopen(norm_name, "r"); + if (!file) + open_fail(norm_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X;%[^;];%[^;];%d.%d.%d #", + &unichar, buf0, buf1, + &major, &minor, &revision); + if (ret != 6) + continue; + if (!utf32valid(unichar) || !age_valid(major, minor, revision)) + line_fail(norm_name, line); + count++; + } + corrections = calloc(count, sizeof(struct unicode_data)); + corrections_count = count; + rewind(file); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X;%[^;];%[^;];%d.%d.%d #", + &unichar, buf0, buf1, + &major, &minor, &revision); + if (ret != 6) + continue; + if (!utf32valid(unichar) || !age_valid(major, minor, revision)) + line_fail(norm_name, line); + corrections[count] = unicode_data[unichar]; + assert(corrections[count].code == unichar); + age = UNICODE_AGE(major, minor, revision); + corrections[count].correction = age; + + i = 0; + s = buf0; + while (*s) { + mapping[i] = strtoul(s, &s, 16); + if (!utf32valid(mapping[i])) + line_fail(norm_name, line); + i++; + } + mapping[i++] = 0; + + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + corrections[count].utf32nfkdi = um; + + if (verbose > 1) + printf(" %X -> %s -> %s V%d_%d_%d\n", + unichar, buf0, buf1, major, minor, revision); + count++; + } + fclose(file); + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(norm_name); +} + +/* ------------------------------------------------------------------ */ + +/* + * Hangul decomposition (algorithm from Section 3.12 of Unicode 6.3.0) + * + * AC00;;Lo;0;L;;;;;N;;;;; + * D7A3;;Lo;0;L;;;;;N;;;;; + * + * SBase = 0xAC00 + * LBase = 0x1100 + * VBase = 0x1161 + * TBase = 0x11A7 + * LCount = 19 + * VCount = 21 + * TCount = 28 + * NCount = 588 (VCount * TCount) + * SCount = 11172 (LCount * NCount) + * + * Decomposition: + * SIndex = s - SBase + * + * LV (Canonical/Full) + * LIndex = SIndex / NCount + * VIndex = (Sindex % NCount) / TCount + * LPart = LBase + LIndex + * VPart = VBase + VIndex + * + * LVT (Canonical) + * LVIndex = (SIndex / TCount) * TCount + * TIndex = (Sindex % TCount + * LVPart = LBase + LVIndex + * TPart = TBase + TIndex + * + * LVT (Full) + * LIndex = SIndex / NCount + * VIndex = (Sindex % NCount) / TCount + * TIndex = (Sindex % TCount + * LPart = LBase + LIndex + * VPart = VBase + VIndex + * if (TIndex == 0) { + * d = + * } else { + * TPart = TBase + TIndex + * d = + * } + * + */ + +static void +hangul_decompose(void) +{ + unsigned int sb = 0xAC00; + unsigned int lb = 0x1100; + unsigned int vb = 0x1161; + unsigned int tb = 0x11a7; + /* unsigned int lc = 19; */ + unsigned int vc = 21; + unsigned int tc = 28; + unsigned int nc = (vc * tc); + /* unsigned int sc = (lc * nc); */ + unsigned int unichar; + unsigned int mapping[4]; + unsigned int *um; + int count; + int i; + + if (verbose > 0) + printf("Decomposing hangul\n"); + /* Hangul */ + count = 0; + for (unichar = 0xAC00; unichar <= 0xD7A3; unichar++) { + unsigned int si = unichar - sb; + unsigned int li = si / nc; + unsigned int vi = (si % nc) / tc; + unsigned int ti = si % tc; + + i = 0; + mapping[i++] = lb + li; + mapping[i++] = vb + vi; + if (ti) + mapping[i++] = tb + ti; + mapping[i++] = 0; + + assert(!unicode_data[unichar].utf32nfkdi); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdi = um; + + assert(!unicode_data[unichar].utf32nfkdicf); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + + if (verbose > 1) + print_utf32nfkdi(unichar); + + count++; + } + if (verbose > 0) + printf("Created %d entries\n", count); +} + +static void +nfkdi_decompose(void) +{ + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + unsigned int *um; + unsigned int *dc; + int count; + int i; + int j; + int ret; + + if (verbose > 0) + printf("Decomposing nfkdi\n"); + + count = 0; + for (unichar = 0; unichar != 0x110000; unichar++) { + if (!unicode_data[unichar].utf32nfkdi) + continue; + for (;;) { + ret = 1; + i = 0; + um = unicode_data[unichar].utf32nfkdi; + while (*um) { + dc = unicode_data[*um].utf32nfkdi; + if (dc) { + for (j = 0; dc[j]; j++) + mapping[i++] = dc[j]; + ret = 0; + } else { + mapping[i++] = *um; + } + um++; + } + mapping[i++] = 0; + if (ret) + break; + free(unicode_data[unichar].utf32nfkdi); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdi = um; + } + /* Add this decomposition to nfkdicf if there is no entry. */ + if (!unicode_data[unichar].utf32nfkdicf) { + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + } + if (verbose > 1) + print_utf32nfkdi(unichar); + count++; + } + if (verbose > 0) + printf("Processed %d entries\n", count); +} + +static void +nfkdicf_decompose(void) +{ + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + unsigned int *um; + unsigned int *dc; + int count; + int i; + int j; + int ret; + + if (verbose > 0) + printf("Decomposing nfkdicf\n"); + count = 0; + for (unichar = 0; unichar != 0x110000; unichar++) { + if (!unicode_data[unichar].utf32nfkdicf) + continue; + for (;;) { + ret = 1; + i = 0; + um = unicode_data[unichar].utf32nfkdicf; + while (*um) { + dc = unicode_data[*um].utf32nfkdicf; + if (dc) { + for (j = 0; dc[j]; j++) + mapping[i++] = dc[j]; + ret = 0; + } else { + mapping[i++] = *um; + } + um++; + } + mapping[i++] = 0; + if (ret) + break; + free(unicode_data[unichar].utf32nfkdicf); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + } + if (verbose > 1) + print_utf32nfkdicf(unichar); + count++; + } + if (verbose > 0) + printf("Processed %d entries\n", count); +} + +/* ------------------------------------------------------------------ */ + +int utf8agemax(struct tree *, const char *); +int utf8nagemax(struct tree *, const char *, size_t); +int utf8agemin(struct tree *, const char *); +int utf8nagemin(struct tree *, const char *, size_t); +ssize_t utf8len(struct tree *, const char *); +ssize_t utf8nlen(struct tree *, const char *, size_t); +struct utf8cursor; +int utf8cursor(struct utf8cursor *, struct tree *, const char *); +int utf8ncursor(struct utf8cursor *, struct tree *, const char *, size_t); +int utf8byte(struct utf8cursor *); + +/* + * Use trie to scan s, touching at most len bytes. + * Returns the leaf if one exists, NULL otherwise. + * + * A non-NULL return guarantees that the UTF-8 sequence starting at s + * is well-formed and corresponds to a known unicode code point. The + * shorthand for this will be "is valid UTF-8 unicode". + */ +static utf8leaf_t * +utf8nlookup(struct tree *tree, const char *s, size_t len) +{ + utf8trie_t *trie = utf8data + tree->index; + int offlen; + int offset; + int mask; + int node; + + if (!tree) + return NULL; + if (len == 0) + return NULL; + node = 1; + while (node) { + offlen = (*trie & OFFLEN) >> OFFLEN_SHIFT; + if (*trie & NEXTBYTE) { + if (--len == 0) + return NULL; + s++; + } + mask = 1 << (*trie & BITNUM); + if (*s & mask) { + /* Right leg */ + if (offlen) { + /* Right node at offset of trie */ + node = (*trie & RIGHTNODE); + offset = trie[offlen]; + while (--offlen) { + offset <<= 8; + offset |= trie[offlen]; + } + trie += offset; + } else if (*trie & RIGHTPATH) { + /* Right node after this node */ + node = (*trie & TRIENODE); + trie++; + } else { + /* No right node. */ + node = 0; + trie = NULL; + } + } else { + /* Left leg */ + if (offlen) { + /* Left node after this node. */ + node = (*trie & LEFTNODE); + trie += offlen + 1; + } else if (*trie & RIGHTPATH) { + /* No left node. */ + node = 0; + trie = NULL; + } else { + /* Left node after this node */ + node = (*trie & TRIENODE); + trie++; + } + } + } + return trie; +} + +/* + * Use trie to scan s. + * Returns the leaf if one exists, NULL otherwise. + * + * Forwards to trie_nlookup(). + */ +static utf8leaf_t * +utf8lookup(struct tree *tree, const char *s) +{ + return utf8nlookup(tree, s, (size_t)-1); +} + +/* + * Return the number of bytes used by the current UTF-8 sequence. + * Assumes the input points to the first byte of a valid UTF-8 + * sequence. + */ +static inline int +utf8clen(const char *s) +{ + unsigned char c = *s; + return 1 + (c >= 0xC0) + (c >= 0xE0) + (c >= 0xF0); +} + +/* + * Maximum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if only non-assigned code points are used. + */ +int +utf8agemax(struct tree *tree, const char *s) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!tree) + return -1; + while (*s) { + if (!(leaf = utf8lookup(tree, s))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age > age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} + +/* + * Minimum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if non-assigned code points are used. + */ +int +utf8agemin(struct tree *tree, const char *s) +{ + utf8leaf_t *leaf; + int age = tree->maxage; + int leaf_age; + + if (!tree) + return -1; + while (*s) { + if (!(leaf = utf8lookup(tree, s))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age < age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemax(struct tree *tree, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!tree) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(tree, s, len))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age > age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemin(struct tree *tree, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int leaf_age; + int age = tree->maxage; + + if (!tree) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(tree, s, len))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age < age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} + +/* + * Length of the normalization of s. + * Return -1 if s is not valid UTF-8 unicode. + * + * A string of Default_Ignorable_Code_Point has length 0. + */ +ssize_t +utf8len(struct tree *tree, const char *s) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!tree) + return -1; + while (*s) { + if (!(leaf = utf8lookup(tree, s))) + return -1; + if (ages[LEAF_GEN(leaf)] > tree->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + s += utf8clen(s); + } + return ret; +} + +/* + * Length of the normalization of s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +ssize_t +utf8nlen(struct tree *tree, const char *s, size_t len) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!tree) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(tree, s, len))) + return -1; + if (ages[LEAF_GEN(leaf)] > tree->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + len -= utf8clen(s); + s += utf8clen(s); + } + return ret; +} + +/* + * Cursor structure used by the normalizer. + */ +struct utf8cursor { + struct tree *tree; + const char *s; + const char *p; + const char *ss; + const char *sp; + unsigned int len; + unsigned int slen; + short int ccc; + short int nccc; + unsigned int unichar; +}; + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * s : string. + * len : length of s. + * u8c : pointer to cursor. + * trie : utf8trie_t to use for normalization. + * + * Returns -1 on error, 0 on success. + */ +int +utf8ncursor( + struct utf8cursor *u8c, + struct tree *tree, + const char *s, + size_t len) +{ + if (!tree) + return -1; + if (!s) + return -1; + u8c->tree = tree; + u8c->s = s; + u8c->p = NULL; + u8c->ss = NULL; + u8c->sp = NULL; + u8c->len = len; + u8c->slen = 0; + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + u8c->unichar = 0; + /* Check we didn't clobber the maximum length. */ + if (u8c->len != len) + return -1; + /* The first byte of s may not be an utf8 continuation. */ + if (len > 0 && (*s & 0xC0) == 0x80) + return -1; + return 0; +} + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * s : NUL-terminated string. + * u8c : pointer to cursor. + * trie : utf8trie_t to use for normalization. + * + * Returns -1 on error, 0 on success. + */ +int +utf8cursor( + struct utf8cursor *u8c, + struct tree *tree, + const char *s) +{ + return utf8ncursor(u8c, tree, s, (unsigned int)-1); +} + +/* + * Get one byte from the normalized form of the string described by u8c. + * + * Returns the byte cast to an unsigned char on succes, and -1 on failure. + * + * The cursor keeps track of the location in the string in u8c->s. + * When a character is decomposed, the current location is stored in + * u8c->p, and u8c->s is set to the start of the decomposition. Note + * that bytes from a decomposition do not count against u8c->len. + * + * Characters are emitted if they match the current CCC in u8c->ccc. + * Hitting end-of-string while u8c->ccc == STOPPER means we're done, + * and the function returns 0 in that case. + * + * Sorting by CCC is done by repeatedly scanning the string. The + * values of u8c->s and u8c->p are stored in u8c->ss and u8c->sp at + * the start of the scan. The first pass finds the lowest CCC to be + * emitted and stores it in u8c->nccc, the second pass emits the + * characters with this CCC and finds the next lowest CCC. This limits + * the number of passes to 1 + the number of different CCCs in the + * sequence being scanned. + * + * Therefore: + * u8c->p != NULL -> a decomposition is being scanned. + * u8c->ss != NULL -> this is a repeating scan. + * u8c->ccc == -1 -> this is the first scan of a repeating scan. + */ +int +utf8byte(struct utf8cursor *u8c) +{ + utf8leaf_t *leaf; + int ccc; + + for (;;) { + /* Check for the end of a decomposed character. */ + if (u8c->p && *u8c->s == '\0') { + u8c->s = u8c->p; + u8c->p = NULL; + } + + /* Check for end-of-string. */ + if (!u8c->p && (u8c->len == 0 || *u8c->s == '\0')) { + /* There is no next byte. */ + if (u8c->ccc == STOPPER) + return 0; + /* End-of-string during a scan counts as a stopper. */ + ccc = STOPPER; + goto ccc_mismatch; + } else if ((*u8c->s & 0xC0) == 0x80) { + /* This is a continuation of the current character. */ + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Look up the data for the current character. */ + if (u8c->p) + leaf = utf8lookup(u8c->tree, u8c->s); + else + leaf = utf8nlookup(u8c->tree, u8c->s, u8c->len); + + /* No leaf found implies that the input is a binary blob. */ + if (!leaf) + return -1; + + /* Characters that are too new have CCC 0. */ + if (ages[LEAF_GEN(leaf)] > u8c->tree->maxage) { + ccc = STOPPER; + } else if ((ccc = LEAF_CCC(leaf)) == DECOMPOSE) { + u8c->len -= utf8clen(u8c->s); + u8c->p = u8c->s + utf8clen(u8c->s); + u8c->s = LEAF_STR(leaf); + /* Empty decomposition implies CCC 0. */ + if (*u8c->s == '\0') { + if (u8c->ccc == STOPPER) + continue; + ccc = STOPPER; + goto ccc_mismatch; + } + leaf = utf8lookup(u8c->tree, u8c->s); + ccc = LEAF_CCC(leaf); + } + u8c->unichar = utf8code(u8c->s); + + /* + * If this is not a stopper, then see if it updates + * the next canonical class to be emitted. + */ + if (ccc != STOPPER && u8c->ccc < ccc && ccc < u8c->nccc) + u8c->nccc = ccc; + + /* + * Return the current byte if this is the current + * combining class. + */ + if (ccc == u8c->ccc) { + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Current combining class mismatch. */ + ccc_mismatch: + if (u8c->nccc == STOPPER) { + /* + * Scan forward for the first canonical class + * to be emitted. Save the position from + * which to restart. + */ + assert(u8c->ccc == STOPPER); + u8c->ccc = MINCCC - 1; + u8c->nccc = ccc; + u8c->sp = u8c->p; + u8c->ss = u8c->s; + u8c->slen = u8c->len; + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (ccc != STOPPER) { + /* Not a stopper, and not the ccc we're emitting. */ + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (u8c->nccc != MAXCCC + 1) { + /* At a stopper, restart for next ccc. */ + u8c->ccc = u8c->nccc; + u8c->nccc = MAXCCC + 1; + u8c->s = u8c->ss; + u8c->p = u8c->sp; + u8c->len = u8c->slen; + } else { + /* All done, proceed from here. */ + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + u8c->sp = NULL; + u8c->ss = NULL; + u8c->slen = 0; + } + } +} + +/* ------------------------------------------------------------------ */ + +static int +normalize_line(struct tree *tree) +{ + char *s; + char *t; + int c; + struct utf8cursor u8c; + + /* First test: null-terminated string. */ + s = buf2; + t = buf3; + if (utf8cursor(&u8c, tree, s)) + return -1; + while ((c = utf8byte(&u8c)) > 0) + if (c != (unsigned char)*t++) + return -1; + if (c < 0) + return -1; + if (*t != 0) + return -1; + + /* Second test: length-limited string. */ + s = buf2; + /* Replace NUL with a value that will cause an error if seen. */ + s[strlen(s) + 1] = -1; + t = buf3; + if (utf8cursor(&u8c, tree, s)) + return -1; + while ((c = utf8byte(&u8c)) > 0) + if (c != (unsigned char)*t++) + return -1; + if (c < 0) + return -1; + if (*t != 0) + return -1; + + return 0; +} + +static void +normalization_test(void) +{ + FILE *file; + unsigned int unichar; + struct unicode_data *data; + char *s; + char *t; + int ret; + int ignorables; + int tests = 0; + int failures = 0; + + if (verbose > 0) + printf("Parsing %s\n", test_name); + /* Step one, read data from file. */ + file = fopen(test_name, "r"); + if (!file) + open_fail(test_name, errno); + + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%[^;];%*[^;];%*[^;];%*[^;];%[^;];", + buf0, buf1); + if (ret != 2 || *line == '#') + continue; + s = buf0; + t = buf2; + while (*s) { + unichar = strtoul(s, &s, 16); + t += utf8key(unichar, t); + } + *t = '\0'; + + ignorables = 0; + s = buf1; + t = buf3; + while (*s) { + unichar = strtoul(s, &s, 16); + data = &unicode_data[unichar]; + if (data->utf8nfkdi && !*data->utf8nfkdi) + ignorables = 1; + else + t += utf8key(unichar, t); + } + *t = '\0'; + + tests++; + if (normalize_line(nfkdi_tree) < 0) { + printf("\nline %s -> %s", buf0, buf1); + if (ignorables) + printf(" (ignorables removed)"); + printf(" failure\n"); + failures++; + } + } + fclose(file); + if (verbose > 0) + printf("Ran %d tests with %d failures\n", tests, failures); + if (failures) + file_fail(test_name); +} + +/* ------------------------------------------------------------------ */ + +static void +write_file(void) +{ + FILE *file; + int i; + int j; + int t; + int gen; + + if (verbose > 0) + printf("Writing %s\n", utf8_name); + file = fopen(utf8_name, "w"); + if (!file) + open_fail(utf8_name, errno); + + fprintf(file, "/* This file is generated code, do not edit. */\n"); + fprintf(file, "#ifndef __INCLUDED_FROM_UTF8NORM_C__\n"); + fprintf(file, "#error Only xfs_utf8.c may include this file.\n"); + fprintf(file, "#endif\n"); + fprintf(file, "\n"); + fprintf(file, "static const unsigned int utf8vers = %#x;\n", + unicode_maxage); + fprintf(file, "\n"); + fprintf(file, "static const unsigned int utf8agetab[] = {\n"); + for (i = 0; i != ages_count; i++) + fprintf(file, "\t%#x%s\n", ages[i], + ages[i] == unicode_maxage ? "" : ","); + fprintf(file, "};\n"); + fprintf(file, "\n"); + fprintf(file, "static const struct utf8data utf8nfkdicfdata[] = {\n"); + t = 0; + for (gen = 0; gen < ages_count; gen++) { + fprintf(file, "\t{ %#x, %d }%s\n", + ages[gen], trees[t].index, + ages[gen] == unicode_maxage ? "" : ","); + if (trees[t].maxage == ages[gen]) + t += 2; + } + fprintf(file, "};\n"); + fprintf(file, "\n"); + fprintf(file, "static const struct utf8data utf8nfkdidata[] = {\n"); + t = 1; + for (gen = 0; gen < ages_count; gen++) { + fprintf(file, "\t{ %#x, %d }%s\n", + ages[gen], trees[t].index, + ages[gen] == unicode_maxage ? "" : ","); + if (trees[t].maxage == ages[gen]) + t += 2; + } + fprintf(file, "};\n"); + fprintf(file, "\n"); + fprintf(file, "static const unsigned char utf8data[%zd] = {\n", + utf8data_size); + t = 0; + for (i = 0; i != utf8data_size; i += 16) { + if (i == trees[t].index) { + fprintf(file, "\t/* %s_%x */\n", + trees[t].type, trees[t].maxage); + if (t < trees_count-1) + t++; + } + fprintf(file, "\t"); + for (j = i; j != i + 16; j++) + fprintf(file, "0x%.2x%s", utf8data[j], + (j < utf8data_size -1 ? "," : "")); + fprintf(file, "\n"); + } + fprintf(file, "};\n"); + fclose(file); +} + +/* ------------------------------------------------------------------ */ + +int +main(int argc, char *argv[]) +{ + unsigned int unichar; + int opt; + + argv0 = argv[0]; + + while ((opt = getopt(argc, argv, "a:c:d:f:hn:o:p:t:v")) != -1) { + switch (opt) { + case 'a': + age_name = optarg; + break; + case 'c': + ccc_name = optarg; + break; + case 'd': + data_name = optarg; + break; + case 'f': + fold_name = optarg; + break; + case 'n': + norm_name = optarg; + break; + case 'o': + utf8_name = optarg; + break; + case 'p': + prop_name = optarg; + break; + case 't': + test_name = optarg; + break; + case 'v': + verbose++; + break; + case 'h': + help(); + exit(0); + default: + usage(); + } + } + + if (verbose > 1) + help(); + for (unichar = 0; unichar != 0x110000; unichar++) + unicode_data[unichar].code = unichar; + age_init(); + ccc_init(); + nfkdi_init(); + nfkdicf_init(); + ignore_init(); + corrections_init(); + hangul_decompose(); + nfkdi_decompose(); + nfkdicf_decompose(); + utf8_init(); + trees_init(); + trees_populate(); + trees_reduce(); + trees_verify(); + /* Prevent "unused function" warning. */ + (void)lookup(nfkdi_tree, " "); + if (verbose > 2) + tree_walk(nfkdi_tree); + if (verbose > 2) + tree_walk(nfkdicf_tree); + normalization_test(); + write_file(); + + return 0; +} -- 1.7.12.4 From bpm@sgi.com Fri Sep 19 11:04:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD, T_FILL_THIS_FORM_SHORT autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 216B67F52 for ; Fri, 19 Sep 2014 11:04:40 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay2.corp.sgi.com (Postfix) with ESMTP id CBF46304048; Fri, 19 Sep 2014 09:04:39 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 853714266DC; Fri, 19 Sep 2014 11:04:39 -0500 (CDT) Date: Fri, 19 Sep 2014 11:04:39 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 07b/10] xfs: add supporting code for UTF-8. Message-ID: <20140919160439.GE4482@sgi.com> References: <20140918195650.GI19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918195650.GI19952@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Supporting functions for UTF-8 normalization are in utf8norm.c with the header utf8norm.h. Two normalization forms are supported: nfkdi and nfkdicf. nfkdi: - Apply unicode normalization form NFKD. - Remove any Default_Ignorable_Code_Point. nfkdicf: - Apply unicode normalization form NFKD. - Remove any Default_Ignorable_Code_Point. - Apply a full casefold (C + F). For the purposes of the code, a string is valid UTF-8 if: - The values encoded are 0x1..0x10FFFF. - The surrogate codepoints 0xD800..0xDFFFF are not encoded. - The shortest possible encoding is used for all values. The supporting functions work on null-terminated strings (utf8 prefix) and on length-limited strings (utf8n prefix). Signed-off-by: Olaf Weber --- [v2: the trie is now separated into utf8norm.ko; utf8version is now a function and exported; introduced CONFIG_XFS_UTF8; removed trie generator due to vger size constraint. --bpm] --- fs/xfs/utf8norm/Makefile | 4 + fs/xfs/utf8norm/utf8norm.c | 649 +++++++++++++++++++++++++++++++++++++++++++++ fs/xfs/utf8norm/utf8norm.h | 116 ++++++++ 3 files changed, 769 insertions(+) create mode 100644 fs/xfs/utf8norm/utf8norm.c create mode 100644 fs/xfs/utf8norm/utf8norm.h diff --git a/fs/xfs/utf8norm/Makefile b/fs/xfs/utf8norm/Makefile index 9b2efa9..f83f9b9 100644 --- a/fs/xfs/utf8norm/Makefile +++ b/fs/xfs/utf8norm/Makefile @@ -16,6 +16,10 @@ # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA # +ifeq ($(CONFIG_XFS_UTF8),y) +obj-m += utf8norm.o +endif + hostprogs-y := mkutf8data $(obj)/utf8norm.o: $(obj)/utf8data.h $(obj)/utf8data.h: $(src)/ucd/*.txt diff --git a/fs/xfs/utf8norm/utf8norm.c b/fs/xfs/utf8norm/utf8norm.c new file mode 100644 index 0000000..995c4df --- /dev/null +++ b/fs/xfs/utf8norm/utf8norm.c @@ -0,0 +1,649 @@ +/* + * Copyright (c) 2014 SGI. + * 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 "utf8norm.h" + +struct utf8data { + unsigned int maxage; + unsigned int offset; +}; + +#define __INCLUDED_FROM_UTF8NORM_C__ +#include "utf8data.h" +#undef __INCLUDED_FROM_UTF8NORM_C__ + +const unsigned int utf8version(void) +{ + return utf8vers; +} +EXPORT_SYMBOL(utf8version); + +/* + * UTF-8 valid ranges. + * + * The UTF-8 encoding spreads the bits of a 32bit word over several + * bytes. This table gives the ranges that can be held and how they'd + * be represented. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000000 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000000 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * There is an additional requirement on UTF-8, in that only the + * shortest representation of a 32bit value is to be used. A decoder + * must not decode sequences that do not satisfy this requirement. + * Thus the allowed ranges have a lower bound. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000080 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000800 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00010000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00200000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x04000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * Actual unicode characters are limited to the range 0x0 - 0x10FFFF, + * 17 planes of 65536 values. This limits the sequences actually seen + * even more, to just the following. + * + * 0 - 0x7F: 0 - 0x7F + * 0x80 - 0x7FF: 0xC2 0x80 - 0xDF 0xBF + * 0x800 - 0xFFFF: 0xE0 0xA0 0x80 - 0xEF 0xBF 0xBF + * 0x10000 - 0x10FFFF: 0xF0 0x90 0x80 0x80 - 0xF4 0x8F 0xBF 0xBF + * + * Within those ranges the surrogates 0xD800 - 0xDFFF are not allowed. + * + * Note that the longest sequence seen with valid usage is 4 bytes, + * the same a single UTF-32 character. This makes the UTF-8 + * representation of Unicode strictly smaller than UTF-32. + * + * The shortest sequence requirement was introduced by: + * Corrigendum #1: UTF-8 Shortest Form + * It can be found here: + * http://www.unicode.org/versions/corrigendum1.html + * + */ + +/* + * Return the number of bytes used by the current UTF-8 sequence. + * Assumes the input points to the first byte of a valid UTF-8 + * sequence. + */ +static inline int +utf8clen(const char *s) +{ + unsigned char c = *s; + return 1 + (c >= 0xC0) + (c >= 0xE0) + (c >= 0xF0); +} + +/* + * utf8trie_t + * + * A compact binary tree, used to decode UTF-8 characters. + * + * Internal nodes are one byte for the node itself, and up to three + * bytes for an offset into the tree. The first byte contains the + * following information: + * NEXTBYTE - flag - advance to next byte if set + * BITNUM - 3 bit field - the bit number to tested + * OFFLEN - 2 bit field - number of bytes in the offset + * if offlen == 0 (non-branching node) + * RIGHTPATH - 1 bit field - set if the following node is for the + * right-hand path (tested bit is set) + * TRIENODE - 1 bit field - set if the following node is an internal + * node, otherwise it is a leaf node + * if offlen != 0 (branching node) + * LEFTNODE - 1 bit field - set if the left-hand node is internal + * RIGHTNODE - 1 bit field - set if the right-hand node is internal + * + * Due to the way utf8 works, there cannot be branching nodes with + * NEXTBYTE set, and moreover those nodes always have a righthand + * descendant. + */ +typedef const unsigned char utf8trie_t; +#define BITNUM 0x07 +#define NEXTBYTE 0x08 +#define OFFLEN 0x30 +#define OFFLEN_SHIFT 4 +#define RIGHTPATH 0x40 +#define TRIENODE 0x80 +#define RIGHTNODE 0x40 +#define LEFTNODE 0x80 + +/* + * utf8leaf_t + * + * The leaves of the trie are embedded in the trie, and so the same + * underlying datatype: unsigned char. + * + * leaf[0]: The unicode version, stored as a generation number that is + * an index into utf8agetab[]. With this we can filter code + * points based on the unicode version in which they were + * defined. The CCC of a non-defined code point is 0. + * leaf[1]: Canonical Combining Class. During normalization, we need + * to do a stable sort into ascending order of all characters + * with a non-zero CCC that occur between two characters with + * a CCC of 0, or at the begin or end of a string. + * The unicode standard guarantees that all CCC values are + * between 0 and 254 inclusive, which leaves 255 available as + * a special value. + * Code points with CCC 0 are known as stoppers. + * leaf[2]: Decomposition. If leaf[1] == 255, then leaf[2] is the + * start of a NUL-terminated string that is the decomposition + * of the character. + * The CCC of a decomposable character is the same as the CCC + * of the first character of its decomposition. + * Some characters decompose as the empty string: these are + * characters with the Default_Ignorable_Code_Point property. + * These do affect normalization, as they all have CCC 0. + * + * The decompositions in the trie have been fully expanded. + * + * Casefolding, if applicable, is also done using decompositions. + * + * The trie is constructed in such a way that leaves exist for all + * UTF-8 sequences that match the criteria from the "UTF-8 valid + * ranges" comment above, and only for those sequences. Therefore a + * lookup in the trie can be used to validate the UTF-8 input. + */ +typedef const unsigned char utf8leaf_t; + +#define LEAF_GEN(LEAF) ((LEAF)[0]) +#define LEAF_CCC(LEAF) ((LEAF)[1]) +#define LEAF_STR(LEAF) ((const char*)((LEAF) + 2)) + +#define MINCCC (0) +#define MAXCCC (254) +#define STOPPER (0) +#define DECOMPOSE (255) + +/* + * Use trie to scan s, touching at most len bytes. + * Returns the leaf if one exists, NULL otherwise. + * + * A non-NULL return guarantees that the UTF-8 sequence starting at s + * is well-formed and corresponds to a known unicode code point. The + * shorthand for this will be "is valid UTF-8 unicode". + */ +static utf8leaf_t * +utf8nlookup(utf8data_t data, const char *s, size_t len) +{ + utf8trie_t *trie = utf8data + data->offset; + int offlen; + int offset; + int mask; + int node; + + if (!data) + return NULL; + if (len == 0) + return NULL; + node = 1; + while (node) { + offlen = (*trie & OFFLEN) >> OFFLEN_SHIFT; + if (*trie & NEXTBYTE) { + if (--len == 0) + return NULL; + s++; + } + mask = 1 << (*trie & BITNUM); + if (*s & mask) { + /* Right leg */ + if (offlen) { + /* Right node at offset of trie */ + node = (*trie & RIGHTNODE); + offset = trie[offlen]; + while (--offlen) { + offset <<= 8; + offset |= trie[offlen]; + } + trie += offset; + } else if (*trie & RIGHTPATH) { + /* Right node after this node */ + node = (*trie & TRIENODE); + trie++; + } else { + /* No right node. */ + node = 0; + trie = NULL; + } + } else { + /* Left leg */ + if (offlen) { + /* Left node after this node. */ + node = (*trie & LEFTNODE); + trie += offlen + 1; + } else if (*trie & RIGHTPATH) { + /* No left node. */ + node = 0; + trie = NULL; + } else { + /* Left node after this node */ + node = (*trie & TRIENODE); + trie++; + } + } + } + return trie; +} + +/* + * Use trie to scan s. + * Returns the leaf if one exists, NULL otherwise. + * + * Forwards to utf8nlookup(). + */ +static utf8leaf_t * +utf8lookup(utf8data_t data, const char *s) +{ + return utf8nlookup(data, s, (size_t)-1); +} + +/* + * Maximum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if only non-assigned code points are used. + */ +int +utf8agemax(utf8data_t data, const char *s) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!data) + return -1; + while (*s) { + if (!(leaf = utf8lookup(data, s))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age > age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} +EXPORT_SYMBOL(utf8agemax); + +/* + * Minimum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if non-assigned code points are used. + */ +int +utf8agemin(utf8data_t data, const char *s) +{ + utf8leaf_t *leaf; + int age; + int leaf_age; + + if (!data) + return -1; + age = data->maxage; + while (*s) { + if (!(leaf = utf8lookup(data, s))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age < age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} +EXPORT_SYMBOL(utf8agemin); + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemax(utf8data_t data, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!data) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(data, s, len))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age > age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} +EXPORT_SYMBOL(utf8nagemax); + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemin(utf8data_t data, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int leaf_age; + int age; + + if (!data) + return -1; + age = data->maxage; + while (len && *s) { + if (!(leaf = utf8nlookup(data, s, len))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age < age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} +EXPORT_SYMBOL(utf8nagemin); + +/* + * Length of the normalization of s. + * Return -1 if s is not valid UTF-8 unicode. + * + * A string of Default_Ignorable_Code_Point has length 0. + */ +ssize_t +utf8len(utf8data_t data, const char *s) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!data) + return -1; + while (*s) { + if (!(leaf = utf8lookup(data, s))) + return -1; + if (utf8agetab[LEAF_GEN(leaf)] > data->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + s += utf8clen(s); + } + return ret; +} +EXPORT_SYMBOL(utf8len); + +/* + * Length of the normalization of s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +ssize_t +utf8nlen(utf8data_t data, const char *s, size_t len) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!data) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(data, s, len))) + return -1; + if (utf8agetab[LEAF_GEN(leaf)] > data->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + len -= utf8clen(s); + s += utf8clen(s); + } + return ret; +} +EXPORT_SYMBOL(utf8nlen); + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * u8c : pointer to cursor. + * data : utf8data_t to use for normalization. + * s : string. + * len : length of s. + * + * Returns -1 on error, 0 on success. + */ +int +utf8ncursor( + struct utf8cursor *u8c, + utf8data_t data, + const char *s, + size_t len) +{ + if (!data) + return -1; + if (!s) + return -1; + u8c->data = data; + u8c->s = s; + u8c->p = NULL; + u8c->ss = NULL; + u8c->sp = NULL; + u8c->len = len; + u8c->slen = 0; + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + /* Check we didn't clobber the maximum length. */ + if (u8c->len != len) + return -1; + /* The first byte of s may not be an utf8 continuation. */ + if (len > 0 && (*s & 0xC0) == 0x80) + return -1; + return 0; +} +EXPORT_SYMBOL(utf8ncursor); + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * u8c : pointer to cursor. + * data : utf8data_t to use for normalization. + * s : NUL-terminated string. + * + * Returns -1 on error, 0 on success. + */ +int +utf8cursor( + struct utf8cursor *u8c, + utf8data_t data, + const char *s) +{ + return utf8ncursor(u8c, data, s, (unsigned int)-1); +} +EXPORT_SYMBOL(utf8cursor); + +/* + * Get one byte from the normalized form of the string described by u8c. + * + * Returns the byte cast to an unsigned char on succes, and -1 on failure. + * + * The cursor keeps track of the location in the string in u8c->s. + * When a character is decomposed, the current location is stored in + * u8c->p, and u8c->s is set to the start of the decomposition. Note + * that bytes from a decomposition do not count against u8c->len. + * + * Characters are emitted if they match the current CCC in u8c->ccc. + * Hitting end-of-string while u8c->ccc == STOPPER means we're done, + * and the function returns 0 in that case. + * + * Sorting by CCC is done by repeatedly scanning the string. The + * values of u8c->s and u8c->p are stored in u8c->ss and u8c->sp at + * the start of the scan. The first pass finds the lowest CCC to be + * emitted and stores it in u8c->nccc, the second pass emits the + * characters with this CCC and finds the next lowest CCC. This limits + * the number of passes to 1 + the number of different CCCs in the + * sequence being scanned. + * + * Therefore: + * u8c->p != NULL -> a decomposition is being scanned. + * u8c->ss != NULL -> this is a repeating scan. + * u8c->ccc == -1 -> this is the first scan of a repeating scan. + */ +int +utf8byte(struct utf8cursor *u8c) +{ + utf8leaf_t *leaf; + int ccc; + + for (;;) { + /* Check for the end of a decomposed character. */ + if (u8c->p && *u8c->s == '\0') { + u8c->s = u8c->p; + u8c->p = NULL; + } + + /* Check for end-of-string. */ + if (!u8c->p && (u8c->len == 0 || *u8c->s == '\0')) { + /* There is no next byte. */ + if (u8c->ccc == STOPPER) + return 0; + /* End-of-string during a scan counts as a stopper. */ + ccc = STOPPER; + goto ccc_mismatch; + } else if ((*u8c->s & 0xC0) == 0x80) { + /* This is a continuation of the current character. */ + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Look up the data for the current character. */ + if (u8c->p) + leaf = utf8lookup(u8c->data, u8c->s); + else + leaf = utf8nlookup(u8c->data, u8c->s, u8c->len); + + /* No leaf found implies that the input is a binary blob. */ + if (!leaf) + return -1; + + /* Characters that are too new have CCC 0. */ + if (utf8agetab[LEAF_GEN(leaf)] > u8c->data->maxage) { + ccc = STOPPER; + } else if ((ccc = LEAF_CCC(leaf)) == DECOMPOSE) { + u8c->len -= utf8clen(u8c->s); + u8c->p = u8c->s + utf8clen(u8c->s); + u8c->s = LEAF_STR(leaf); + /* Empty decomposition implies CCC 0. */ + if (*u8c->s == '\0') { + if (u8c->ccc == STOPPER) + continue; + ccc = STOPPER; + goto ccc_mismatch; + } + leaf = utf8lookup(u8c->data, u8c->s); + ccc = LEAF_CCC(leaf); + } + + /* + * If this is not a stopper, then see if it updates + * the next canonical class to be emitted. + */ + if (ccc != STOPPER && u8c->ccc < ccc && ccc < u8c->nccc) + u8c->nccc = ccc; + + /* + * Return the current byte if this is the current + * combining class. + */ + if (ccc == u8c->ccc) { + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Current combining class mismatch. */ + ccc_mismatch: + if (u8c->nccc == STOPPER) { + /* + * Scan forward for the first canonical class + * to be emitted. Save the position from + * which to restart. + */ + u8c->ccc = MINCCC - 1; + u8c->nccc = ccc; + u8c->sp = u8c->p; + u8c->ss = u8c->s; + u8c->slen = u8c->len; + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (ccc != STOPPER) { + /* Not a stopper, and not the ccc we're emitting. */ + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (u8c->nccc != MAXCCC + 1) { + /* At a stopper, restart for next ccc. */ + u8c->ccc = u8c->nccc; + u8c->nccc = MAXCCC + 1; + u8c->s = u8c->ss; + u8c->p = u8c->sp; + u8c->len = u8c->slen; + } else { + /* All done, proceed from here. */ + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + u8c->sp = NULL; + u8c->ss = NULL; + u8c->slen = 0; + } + } +} +EXPORT_SYMBOL(utf8byte); + +const struct utf8data * +utf8nfkdi(unsigned int maxage) +{ + int i = sizeof(utf8nfkdidata)/sizeof(utf8nfkdidata[0]) - 1; + + while (maxage < utf8nfkdidata[i].maxage) + i--; + if (maxage > utf8nfkdidata[i].maxage) + return NULL; + return &utf8nfkdidata[i]; +} +EXPORT_SYMBOL(utf8nfkdi); + +const struct utf8data * +utf8nfkdicf(unsigned int maxage) +{ + int i = sizeof(utf8nfkdicfdata)/sizeof(utf8nfkdicfdata[0]) - 1; + + while (maxage < utf8nfkdicfdata[i].maxage) + i--; + if (maxage > utf8nfkdicfdata[i].maxage) + return NULL; + return &utf8nfkdicfdata[i]; +} +EXPORT_SYMBOL(utf8nfkdicf); + +MODULE_AUTHOR("SGI"); +MODULE_DESCRIPTION("utf8 normalization"); +MODULE_LICENSE("GPL"); diff --git a/fs/xfs/utf8norm/utf8norm.h b/fs/xfs/utf8norm/utf8norm.h new file mode 100644 index 0000000..44a9e53 --- /dev/null +++ b/fs/xfs/utf8norm/utf8norm.h @@ -0,0 +1,116 @@ +/* + * Copyright (c) 2014 SGI. + * 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 UTF8NORM_H +#define UTF8NORM_H + +#include +#include +#include +#include + +/* An opaque type used to determine the normalization in use. */ +typedef const struct utf8data *utf8data_t; + +/* Encoding a unicode version number as a single unsigned int. */ +#define UNICODE_MAJ_SHIFT (16) +#define UNICODE_MIN_SHIFT (8) + +#define UNICODE_AGE(MAJ,MIN,REV) \ + (((unsigned int)(MAJ) << UNICODE_MAJ_SHIFT) | \ + ((unsigned int)(MIN) << UNICODE_MIN_SHIFT) | \ + ((unsigned int)(REV))) + +/* Highest unicode version supported by the data tables. */ +extern const unsigned int utf8version(void); + +/* + * Look for the correct utf8data_t for a unicode version. + * Returns NULL if the version requested is too new. + * + * Two normalization forms are supported: nfkdi and nfkdicf. + * + * nfkdi: + * - Apply unicode normalization form NFKD. + * - Remove any Default_Ignorable_Code_Point. + * + * nfkdicf: + * - Apply unicode normalization form NFKD. + * - Remove any Default_Ignorable_Code_Point. + * - Apply a full casefold (C + F). + */ +extern utf8data_t utf8nfkdi(unsigned int); +extern utf8data_t utf8nfkdicf(unsigned int); + +/* + * Determine the maximum age of any unicode character in the string. + * Returns 0 if only unassigned code points are present. + * Returns -1 if the input is not valid UTF-8. + */ +extern int utf8agemax(utf8data_t, const char *); +extern int utf8nagemax(utf8data_t, const char *, size_t); + +/* + * Determine the minimum age of any unicode character in the string. + * Returns 0 if any unassigned code points are present. + * Returns -1 if the input is not valid UTF-8. + */ +extern int utf8agemin(utf8data_t, const char *); +extern int utf8nagemin(utf8data_t, const char *, size_t); + +/* + * Determine the length of the normalized from of the string, + * excluding any terminating NULL byte. + * Returns 0 if only ignorable code points are present. + * Returns -1 if the input is not valid UTF-8. + */ +extern ssize_t utf8len(utf8data_t, const char *); +extern ssize_t utf8nlen(utf8data_t, const char *, size_t); + +/* + * Cursor structure used by the normalizer. + */ +struct utf8cursor { + utf8data_t data; + const char *s; + const char *p; + const char *ss; + const char *sp; + unsigned int len; + unsigned int slen; + short int ccc; + short int nccc; +}; + +/* + * Initialize a utf8cursor to normalize a string. + * Returns 0 on success. + * Returns -1 on failure. + */ +extern int utf8cursor(struct utf8cursor *, utf8data_t, const char *); +extern int utf8ncursor(struct utf8cursor *, utf8data_t, const char *, size_t); + +/* + * Get the next byte in the normalization. + * Returns a value > 0 && < 256 on success. + * Returns 0 when the end of the normalization is reached. + * Returns -1 if the string being normalized is not valid UTF-8. + */ +extern int utf8byte(struct utf8cursor *); + +#endif /* UTF8NORM_H */ -- 1.7.12.4 From bpm@sgi.com Fri Sep 19 11:06:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD, T_FILL_THIS_FORM_SHORT autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 2473929DF9 for ; Fri, 19 Sep 2014 11:06:13 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay2.corp.sgi.com (Postfix) with ESMTP id C606E304043; Fri, 19 Sep 2014 09:06:12 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 20ADA4266DC; Fri, 19 Sep 2014 11:06:12 -0500 (CDT) Date: Fri, 19 Sep 2014 11:06:12 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 07a/13] xfsprogs: add trie generator for UTF-8. Message-ID: <20140919160612.GF4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140918203114.GN4482@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918203114.GN4482@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber mkutf8data.c is the source for a program that generates utf8data.h, which contains the trie that utf8norm.c uses. The trie is generated from the Unicode 7.0.0 data files. The format of the utf8data[] table is described in utf8norm.c, which is added in the next patch. Signed-off-by: Olaf Weber --- Makefile | 2 +- support/Makefile | 24 + support/mkutf8data.c | 3232 ++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 3257 insertions(+), 1 deletion(-) create mode 100644 support/Makefile create mode 100644 support/mkutf8data.c diff --git a/Makefile b/Makefile index f56aebd..c442da6 100644 --- a/Makefile +++ b/Makefile @@ -40,7 +40,7 @@ LDIRDIRT = $(SRCDIR) LDIRT += $(SRCTAR) endif -LIB_SUBDIRS = libxfs libxlog libxcmd libhandle libdisk +LIB_SUBDIRS = support libxfs libxlog libxcmd libhandle libdisk TOOL_SUBDIRS = copy db estimate fsck fsr growfs io logprint mkfs quota \ mdrestore repair rtcp m4 man doc po debian diff --git a/support/Makefile b/support/Makefile new file mode 100644 index 0000000..cade5fe --- /dev/null +++ b/support/Makefile @@ -0,0 +1,24 @@ +# +# Copyright (c) 2014 SGI. All Rights Reserved. +# + +TOPDIR = .. +include $(TOPDIR)/include/builddefs + +default = ../include/utf8data.h + +../include/utf8data.h: mkutf8data.c + cc -o mkutf8data mkutf8data.c + cd ucd-7.0.0 ; ../mkutf8data + mv ucd-7.0.0/utf8data.h ../include + +default clean: + rm -f mkutf8data ../include/utf8data.h + +default install: + +default install-dev: + +default install-qa: + +-include .ltdep diff --git a/support/mkutf8data.c b/support/mkutf8data.c new file mode 100644 index 0000000..e5c3507 --- /dev/null +++ b/support/mkutf8data.c @@ -0,0 +1,3232 @@ +/* + * Copyright (c) 2014 SGI. + * 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 + */ + +/* Generator for a compact trie for unicode normalization */ + +#include +#include +#include +#include +#include +#include +#include +#include + +/* Default names of the in- and output files. */ + +#define AGE_NAME "DerivedAge.txt" +#define CCC_NAME "DerivedCombiningClass.txt" +#define PROP_NAME "DerivedCoreProperties.txt" +#define DATA_NAME "UnicodeData.txt" +#define FOLD_NAME "CaseFolding.txt" +#define NORM_NAME "NormalizationCorrections.txt" +#define TEST_NAME "NormalizationTest.txt" +#define UTF8_NAME "utf8data.h" + +const char *age_name = AGE_NAME; +const char *ccc_name = CCC_NAME; +const char *prop_name = PROP_NAME; +const char *data_name = DATA_NAME; +const char *fold_name = FOLD_NAME; +const char *norm_name = NORM_NAME; +const char *test_name = TEST_NAME; +const char *utf8_name = UTF8_NAME; + +int verbose = 0; + +/* An arbitrary line size limit on input lines. */ + +#define LINESIZE 1024 +char line[LINESIZE]; +char buf0[LINESIZE]; +char buf1[LINESIZE]; +char buf2[LINESIZE]; +char buf3[LINESIZE]; + +const char *argv0; + +/* ------------------------------------------------------------------ */ + +/* + * Unicode version numbers consist of three parts: major, minor, and a + * revision. These numbers are packed into an unsigned int to obtain + * a single version number. + * + * To save space in the generated trie, the unicode version is not + * stored directly, instead we calculate a generation number from the + * unicode versions seen in the DerivedAge file, and use that as an + * index into a table of unicode versions. + */ +#define UNICODE_MAJ_SHIFT (16) +#define UNICODE_MIN_SHIFT (8) + +#define UNICODE_MAJ_MAX ((unsigned short)-1) +#define UNICODE_MIN_MAX ((unsigned char)-1) +#define UNICODE_REV_MAX ((unsigned char)-1) + +#define UNICODE_AGE(MAJ,MIN,REV) \ + (((unsigned int)(MAJ) << UNICODE_MAJ_SHIFT) | \ + ((unsigned int)(MIN) << UNICODE_MIN_SHIFT) | \ + ((unsigned int)(REV))) + +unsigned int *ages; +int ages_count; + +unsigned int unicode_maxage; + +static int +age_valid(unsigned int major, unsigned int minor, unsigned int revision) +{ + if (major > UNICODE_MAJ_MAX) + return 0; + if (minor > UNICODE_MIN_MAX) + return 0; + if (revision > UNICODE_REV_MAX) + return 0; + return 1; +} + +/* ------------------------------------------------------------------ */ + +/* + * utf8trie_t + * + * A compact binary tree, used to decode UTF-8 characters. + * + * Internal nodes are one byte for the node itself, and up to three + * bytes for an offset into the tree. The first byte contains the + * following information: + * NEXTBYTE - flag - advance to next byte if set + * BITNUM - 3 bit field - the bit number to tested + * OFFLEN - 2 bit field - number of bytes in the offset + * if offlen == 0 (non-branching node) + * RIGHTPATH - 1 bit field - set if the following node is for the + * right-hand path (tested bit is set) + * TRIENODE - 1 bit field - set if the following node is an internal + * node, otherwise it is a leaf node + * if offlen != 0 (branching node) + * LEFTNODE - 1 bit field - set if the left-hand node is internal + * RIGHTNODE - 1 bit field - set if the right-hand node is internal + * + * Due to the way utf8 works, there cannot be branching nodes with + * NEXTBYTE set, and moreover those nodes always have a righthand + * descendant. + */ +typedef unsigned char utf8trie_t; +#define BITNUM 0x07 +#define NEXTBYTE 0x08 +#define OFFLEN 0x30 +#define OFFLEN_SHIFT 4 +#define RIGHTPATH 0x40 +#define TRIENODE 0x80 +#define RIGHTNODE 0x40 +#define LEFTNODE 0x80 + +/* + * utf8leaf_t + * + * The leaves of the trie are embedded in the trie, and so the same + * underlying datatype, unsigned char. + * + * leaf[0]: The unicode version, stored as a generation number that is + * an index into utf8agetab[]. With this we can filter code + * points based on the unicode version in which they were + * defined. The CCC of a non-defined code point is 0. + * leaf[1]: Canonical Combining Class. During normalization, we need + * to do a stable sort into ascending order of all characters + * with a non-zero CCC that occur between two characters with + * a CCC of 0, or at the begin or end of a string. + * The unicode standard guarantees that all CCC values are + * between 0 and 254 inclusive, which leaves 255 available as + * a special value. + * Code points with CCC 0 are known as stoppers. + * leaf[2]: Decomposition. If leaf[1] == 255, then leaf[2] is the + * start of a NUL-terminated string that is the decomposition + * of the character. + * The CCC of a decomposable character is the same as the CCC + * of the first character of its decomposition. + * Some characters decompose as the empty string: these are + * characters with the Default_Ignorable_Code_Point property. + * These do affect normalization, as they all have CCC 0. + * + * The decompositions in the trie have been fully expanded. + * + * Casefolding, if applicable, is also done using decompositions. + */ +typedef unsigned char utf8leaf_t; + +#define LEAF_GEN(LEAF) ((LEAF)[0]) +#define LEAF_CCC(LEAF) ((LEAF)[1]) +#define LEAF_STR(LEAF) ((const char*)((LEAF) + 2)) + +#define MAXGEN (255) + +#define MINCCC (0) +#define MAXCCC (254) +#define STOPPER (0) +#define DECOMPOSE (255) + +struct tree; +static utf8leaf_t *utf8nlookup(struct tree *, const char *, size_t); +static utf8leaf_t *utf8lookup(struct tree *, const char *); + +unsigned char *utf8data; +size_t utf8data_size; + +utf8trie_t *nfkdi; +utf8trie_t *nfkdicf; + +/* ------------------------------------------------------------------ */ + +/* + * UTF8 valid ranges. + * + * The UTF-8 encoding spreads the bits of a 32bit word over several + * bytes. This table gives the ranges that can be held and how they'd + * be represented. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000000 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000000 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * There is an additional requirement on UTF-8, in that only the + * shortest representation of a 32bit value is to be used. A decoder + * must not decode sequences that do not satisfy this requirement. + * Thus the allowed ranges have a lower bound. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000080 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000800 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00010000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00200000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x04000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * Actual unicode characters are limited to the range 0x0 - 0x10FFFF, + * 17 planes of 65536 values. This limits the sequences actually seen + * even more, to just the following. + * + * 0 - 0x7f: 0 0x7f + * 0x80 - 0x7ff: 0xc2 0x80 0xdf 0xbf + * 0x800 - 0xffff: 0xe0 0xa0 0x80 0xef 0xbf 0xbf + * 0x10000 - 0x10ffff: 0xf0 0x90 0x80 0x80 0xf4 0x8f 0xbf 0xbf + * + * Even within those ranges not all values are allowed: the surrogates + * 0xd800 - 0xdfff should never be seen. + * + * Note that the longest sequence seen with valid usage is 4 bytes, + * the same a single UTF-32 character. This makes the UTF-8 + * representation of Unicode strictly smaller than UTF-32. + * + * The shortest sequence requirement was introduced by: + * Corrigendum #1: UTF-8 Shortest Form + * It can be found here: + * http://www.unicode.org/versions/corrigendum1.html + * + */ + +#define UTF8_2_BITS 0xC0 +#define UTF8_3_BITS 0xE0 +#define UTF8_4_BITS 0xF0 +#define UTF8_N_BITS 0x80 +#define UTF8_2_MASK 0xE0 +#define UTF8_3_MASK 0xF0 +#define UTF8_4_MASK 0xF8 +#define UTF8_N_MASK 0xC0 +#define UTF8_V_MASK 0x3F +#define UTF8_V_SHIFT 6 + +static int +utf8key(unsigned int key, char keyval[]) +{ + int keylen; + + if (key < 0x80) { + keyval[0] = key; + keylen = 1; + } else if (key < 0x800) { + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_2_BITS; + keylen = 2; + } else if (key < 0x10000) { + keyval[2] = key & UTF8_V_MASK; + keyval[2] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_3_BITS; + keylen = 3; + } else if (key < 0x110000) { + keyval[3] = key & UTF8_V_MASK; + keyval[3] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[2] = key & UTF8_V_MASK; + keyval[2] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[1] = key & UTF8_V_MASK; + keyval[1] |= UTF8_N_BITS; + key >>= UTF8_V_SHIFT; + keyval[0] = key; + keyval[0] |= UTF8_4_BITS; + keylen = 4; + } else { + printf("%#x: illegal key\n", key); + keylen = 0; + } + return keylen; +} + +static unsigned int +utf8code(const char *str) +{ + const unsigned char *s = (const unsigned char*)str; + unsigned int unichar = 0; + + if (*s < 0x80) { + unichar = *s; + } else if (*s < UTF8_3_BITS) { + unichar = *s++ & 0x1F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s & 0x3F; + } else if (*s < UTF8_4_BITS) { + unichar = *s++ & 0x0F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s++ & 0x3F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s & 0x3F; + } else { + unichar = *s++ & 0x0F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s++ & 0x3F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s++ & 0x3F; + unichar <<= UTF8_V_SHIFT; + unichar |= *s & 0x3F; + } + return unichar; +} + +static int +utf32valid(unsigned int unichar) +{ + return unichar < 0x110000; +} + +#define NODE 1 +#define LEAF 0 + +struct tree { + void *root; + int childnode; + const char *type; + unsigned int maxage; + struct tree *next; + int (*leaf_equal)(void *, void *); + void (*leaf_print)(void *, int); + int (*leaf_mark)(void *); + int (*leaf_size)(void *); + int *(*leaf_index)(struct tree *, void *); + unsigned char *(*leaf_emit)(void *, unsigned char *); + int leafindex[0x110000]; + int index; +}; + +struct node { + int index; + int offset; + int mark; + int size; + struct node *parent; + void *left; + void *right; + unsigned char bitnum; + unsigned char nextbyte; + unsigned char leftnode; + unsigned char rightnode; + unsigned int keybits; + unsigned int keymask; +}; + +/* + * Example lookup function for a tree. + */ +static void * +lookup(struct tree *tree, const char *key) +{ + struct node *node; + void *leaf = NULL; + + node = tree->root; + while (!leaf && node) { + if (node->nextbyte) + key++; + if (*key & (1 << (node->bitnum & 7))) { + /* Right leg */ + if (node->rightnode == NODE) { + node = node->right; + } else if (node->rightnode == LEAF) { + leaf = node->right; + } else { + node = NULL; + } + } else { + /* Left leg */ + if (node->leftnode == NODE) { + node = node->left; + } else if (node->leftnode == LEAF) { + leaf = node->left; + } else { + node = NULL; + } + } + } + + return leaf; +} + +/* + * A simple non-recursive tree walker: keep track of visits to the + * left and right branches in the leftmask and rightmask. + */ +static void +tree_walk(struct tree *tree) +{ + struct node *node; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int indent = 1; + int nodes, singletons, leaves; + + nodes = singletons = leaves = 0; + + printf("%s_%x root %p\n", tree->type, tree->maxage, tree->root); + if (tree->childnode == LEAF) { + assert(tree->root); + tree->leaf_print(tree->root, indent); + leaves = 1; + } else { + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + printf("%*snode @ %p bitnum %d nextbyte %d" + " left %p right %p mask %x bits %x\n", + indent, "", node, + node->bitnum, node->nextbyte, + node->left, node->right, + node->keymask, node->keybits); + nodes += 1; + if (!(node->left && node->right)) + singletons += 1; + + while (node) { + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + tree->leaf_print(node->left, + indent+1); + leaves += 1; + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if ((rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + tree->leaf_print(node->right, + indent+1); + leaves += 1; + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + indent -= 1; + } + } + } + printf("nodes %d leaves %d singletons %d\n", + nodes, leaves, singletons); +} + +/* + * Allocate an initialize a new internal node. + */ +static struct node * +alloc_node(struct node *parent) +{ + struct node *node; + int bitnum; + + node = malloc(sizeof(*node)); + node->left = node->right = NULL; + node->parent = parent; + node->leftnode = NODE; + node->rightnode = NODE; + node->keybits = 0; + node->keymask = 0; + node->mark = 0; + node->index = 0; + node->offset = -1; + node->size = 4; + + if (node->parent) { + bitnum = parent->bitnum; + if ((bitnum & 7) == 0) { + node->bitnum = bitnum + 7 + 8; + node->nextbyte = 1; + } else { + node->bitnum = bitnum - 1; + node->nextbyte = 0; + } + } else { + node->bitnum = 7; + node->nextbyte = 0; + } + + return node; +} + +/* + * Insert a new leaf into the tree, and collapse any subtrees that are + * fully populated and end in identical leaves. A nextbyte tagged + * internal node will not be removed to preserve the tree's integrity. + * Note that due to the structure of utf8, no nextbyte tagged node + * will be a candidate for removal. + */ +static int +insert(struct tree *tree, char *key, int keylen, void *leaf) +{ + struct node *node; + struct node *parent; + void **cursor; + int keybits; + + assert(keylen >= 1 && keylen <= 4); + + node = NULL; + cursor = &tree->root; + keybits = 8 * keylen; + + /* Insert, creating path along the way. */ + while (keybits) { + if (!*cursor) + *cursor = alloc_node(node); + node = *cursor; + if (node->nextbyte) + key++; + if (*key & (1 << (node->bitnum & 7))) + cursor = &node->right; + else + cursor = &node->left; + keybits--; + } + *cursor = leaf; + + /* Merge subtrees if possible. */ + while (node) { + if (*key & (1 << (node->bitnum & 7))) + node->rightnode = LEAF; + else + node->leftnode = LEAF; + if (node->nextbyte) + break; + if (node->leftnode == NODE || node->rightnode == NODE) + break; + assert(node->left); + assert(node->right); + /* Compare */ + if (! tree->leaf_equal(node->left, node->right)) + break; + /* Keep left, drop right leaf. */ + leaf = node->left; + /* Check in parent */ + parent = node->parent; + if (!parent) { + /* root of tree! */ + tree->root = leaf; + tree->childnode = LEAF; + } else if (parent->left == node) { + parent->left = leaf; + parent->leftnode = LEAF; + if (parent->right) { + parent->keymask = 0; + parent->keybits = 0; + } else { + parent->keymask |= (1 << node->bitnum); + } + } else if (parent->right == node) { + parent->right = leaf; + parent->rightnode = LEAF; + if (parent->left) { + parent->keymask = 0; + parent->keybits = 0; + } else { + parent->keymask |= (1 << node->bitnum); + parent->keybits |= (1 << node->bitnum); + } + } else { + /* internal tree error */ + assert(0); + } + free(node); + node = parent; + } + + /* Propagate keymasks up along singleton chains. */ + while (node) { + parent = node->parent; + if (!parent) + break; + /* Nix the mask for parents with two children. */ + if (node->keymask == 0) { + parent->keymask = 0; + parent->keybits = 0; + } else if (parent->left && parent->right) { + parent->keymask = 0; + parent->keybits = 0; + } else { + assert((parent->keymask & node->keymask) == 0); + parent->keymask |= node->keymask; + parent->keymask |= (1 << parent->bitnum); + parent->keybits |= node->keybits; + if (parent->right) + parent->keybits |= (1 << parent->bitnum); + } + node = parent; + } + + return 0; +} + +/* + * Prune internal nodes. + * + * Fully populated subtrees that end at the same leaf have already + * been collapsed. There are still internal nodes that have for both + * their left and right branches a sequence of singletons that make + * identical choices and end in identical leaves. The keymask and + * keybits collected in the nodes describe the choices made in these + * singleton chains. When they are identical for the left and right + * branch of a node, and the two leaves comare identical, the node in + * question can be removed. + * + * Note that nodes with the nextbyte tag set will not be removed by + * this to ensure tree integrity. Note as well that the structure of + * utf8 ensures that these nodes would not have been candidates for + * removal in any case. + */ +static void +prune(struct tree *tree) +{ + struct node *node; + struct node *left; + struct node *right; + struct node *parent; + void *leftleaf; + void *rightleaf; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int count; + + if (verbose > 0) + printf("Pruning %s_%x\n", tree->type, tree->maxage); + + count = 0; + if (tree->childnode == LEAF) + return; + if (!tree->root) + return; + + leftmask = rightmask = 0; + node = tree->root; + while (node) { + if (node->nextbyte) + goto advance; + if (node->leftnode == LEAF) + goto advance; + if (node->rightnode == LEAF) + goto advance; + if (!node->left) + goto advance; + if (!node->right) + goto advance; + left = node->left; + right = node->right; + if (left->keymask == 0) + goto advance; + if (right->keymask == 0) + goto advance; + if (left->keymask != right->keymask) + goto advance; + if (left->keybits != right->keybits) + goto advance; + leftleaf = NULL; + while (!leftleaf) { + assert(left->left || left->right); + if (left->leftnode == LEAF) + leftleaf = left->left; + else if (left->rightnode == LEAF) + leftleaf = left->right; + else if (left->left) + left = left->left; + else if (left->right) + left = left->right; + else + assert(0); + } + rightleaf = NULL; + while (!rightleaf) { + assert(right->left || right->right); + if (right->leftnode == LEAF) + rightleaf = right->left; + else if (right->rightnode == LEAF) + rightleaf = right->right; + else if (right->left) + right = right->left; + else if (right->right) + right = right->right; + else + assert(0); + } + if (! tree->leaf_equal(leftleaf, rightleaf)) + goto advance; + /* + * This node has identical singleton-only subtrees. + * Remove it. + */ + parent = node->parent; + left = node->left; + right = node->right; + if (parent->left == node) + parent->left = left; + else if (parent->right == node) + parent->right = left; + else + assert(0); + left->parent = parent; + left->keymask |= (1 << node->bitnum); + node->left = NULL; + while (node) { + bitmask = 1 << node->bitnum; + leftmask &= ~bitmask; + rightmask &= ~bitmask; + if (node->leftnode == NODE && node->left) { + left = node->left; + free(node); + count++; + node = left; + } else if (node->rightnode == NODE && node->right) { + right = node->right; + free(node); + count++; + node = right; + } else { + node = NULL; + } + } + /* Propagate keymasks up along singleton chains. */ + node = parent; + /* Force re-check */ + bitmask = 1 << node->bitnum; + leftmask &= ~bitmask; + rightmask &= ~bitmask; + for (;;) { + if (node->left && node->right) + break; + if (node->left) { + left = node->left; + node->keymask |= left->keymask; + node->keybits |= left->keybits; + } + if (node->right) { + right = node->right; + node->keymask |= right->keymask; + node->keybits |= right->keybits; + } + node->keymask |= (1 << node->bitnum); + node = node->parent; + /* Force re-check */ + bitmask = 1 << node->bitnum; + leftmask &= ~bitmask; + rightmask &= ~bitmask; + } + advance: + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0 && + node->leftnode == NODE && + node->left) { + leftmask |= bitmask; + node = node->left; + } else if ((rightmask & bitmask) == 0 && + node->rightnode == NODE && + node->right) { + rightmask |= bitmask; + node = node->right; + } else { + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + } + } + if (verbose > 0) + printf("Pruned %d nodes\n", count); +} + +/* + * Mark the nodes in the tree that lead to leaves that must be + * emitted. + */ +static void +mark_nodes(struct tree *tree) +{ + struct node *node; + struct node *n; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int marked; + + marked = 0; + if (verbose > 0) + printf("Marking %s_%x\n", tree->type, tree->maxage); + if (tree->childnode == LEAF) + goto done; + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + if (tree->leaf_mark(node->left)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->left) { + assert(node->leftnode == NODE); + node = node->left; + continue; + } + } + if ((rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + if (tree->leaf_mark(node->right)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->right) { + assert(node->rightnode==NODE); + node = node->right; + continue; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + } + + /* second pass: left siblings and singletons */ + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + bitmask = 1 << node->bitnum; + if ((leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + if (tree->leaf_mark(node->left)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->left) { + assert(node->leftnode == NODE); + node = node->left; + if (!node->mark && node->parent->mark) { + marked++; + node->mark = 1; + } + continue; + } + } + if ((rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + if (tree->leaf_mark(node->right)) { + n = node; + while (n && !n->mark) { + marked++; + n->mark = 1; + n = n->parent; + } + } + } else if (node->right) { + assert(node->rightnode==NODE); + node = node->right; + if (!node->mark && node->parent->mark && + !node->parent->left) { + marked++; + node->mark = 1; + } + continue; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + } +done: + if (verbose > 0) + printf("Marked %d nodes\n", marked); +} + +/* + * Compute the index of each node and leaf, which is the offset in the + * emitted trie. These value must be pre-computed because relative + * offsets between nodes are used to navigate the tree. + */ +static int +index_nodes(struct tree *tree, int index) +{ + struct node *node; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int count; + int indent; + + /* Align to a cache line (or half a cache line?). */ + while (index % 64) + index++; + tree->index = index; + indent = 1; + count = 0; + + if (verbose > 0) + printf("Indexing %s_%x: %d", tree->type, tree->maxage, index); + if (tree->childnode == LEAF) { + index += tree->leaf_size(tree->root); + goto done; + } + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + if (!node->mark) + goto skip; + count++; + if (node->index != index) + node->index = index; + index += node->size; +skip: + while (node) { + bitmask = 1 << node->bitnum; + if (node->mark && (leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + *tree->leaf_index(tree, node->left) = + index; + index += tree->leaf_size(node->left); + count++; + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if (node->mark && (rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + *tree->leaf_index(tree, node->right) = index; + index += tree->leaf_size(node->right); + count++; + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + indent -= 1; + } + } +done: + /* Round up to a multiple of 16 */ + while (index % 16) + index++; + if (verbose > 0) + printf("Final index %d\n", index); + return index; +} + +/* + * Compute the size of nodes and leaves. We start by assuming that + * each node needs to store a three-byte offset. The indexes of the + * nodes are calculated based on that, and then this function is + * called to see if the sizes of some nodes can be reduced. This is + * repeated until no more changes are seen. + */ +static int +size_nodes(struct tree *tree) +{ + struct tree *next; + struct node *node; + struct node *right; + struct node *n; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + unsigned int pathbits; + unsigned int pathmask; + int changed; + int offset; + int size; + int indent; + + indent = 1; + changed = 0; + size = 0; + + if (verbose > 0) + printf("Sizing %s_%x", tree->type, tree->maxage); + if (tree->childnode == LEAF) + goto done; + + assert(tree->childnode == NODE); + pathbits = 0; + pathmask = 0; + node = tree->root; + leftmask = rightmask = 0; + while (node) { + if (!node->mark) + goto skip; + offset = 0; + if (!node->left || !node->right) { + size = 1; + } else { + if (node->rightnode == NODE) { + right = node->right; + next = tree->next; + while (!right->mark) { + assert(next); + n = next->root; + while (n->bitnum != node->bitnum) { + if (pathbits & (1<bitnum)) + n = n->right; + else + n = n->left; + } + n = n->right; + assert(right->bitnum == n->bitnum); + right = n; + next = next->next; + } + offset = right->index - node->index; + } else { + offset = *tree->leaf_index(tree, node->right); + offset -= node->index; + } + assert(offset >= 0); + assert(offset <= 0xffffff); + if (offset <= 0xff) { + size = 2; + } else if (offset <= 0xffff) { + size = 3; + } else { /* offset <= 0xffffff */ + size = 4; + } + } + if (node->size != size || node->offset != offset) { + node->size = size; + node->offset = offset; + changed++; + } +skip: + while (node) { + bitmask = 1 << node->bitnum; + pathmask |= bitmask; + if (node->mark && (leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if (node->mark && (rightmask & bitmask) == 0) { + rightmask |= bitmask; + pathbits |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + pathmask &= ~bitmask; + pathbits &= ~bitmask; + node = node->parent; + indent -= 1; + } + } +done: + if (verbose > 0) + printf("Found %d changes\n", changed); + return changed; +} + +/* + * Emit a trie for the given tree into the data array. + */ +static void +emit(struct tree *tree, unsigned char *data) +{ + struct node *node; + unsigned int leftmask; + unsigned int rightmask; + unsigned int bitmask; + int offlen; + int offset; + int index; + int indent; + unsigned char byte; + + index = tree->index; + data += index; + indent = 1; + if (verbose > 0) + printf("Emitting %s_%x\n", tree->type, tree->maxage); + if (tree->childnode == LEAF) { + assert(tree->root); + tree->leaf_emit(tree->root, data); + return; + } + + assert(tree->childnode == NODE); + node = tree->root; + leftmask = rightmask = 0; + while (node) { + if (!node->mark) + goto skip; + assert(node->offset != -1); + assert(node->index == index); + + byte = 0; + if (node->nextbyte) + byte |= NEXTBYTE; + byte |= (node->bitnum & BITNUM); + if (node->left && node->right) { + if (node->leftnode == NODE) + byte |= LEFTNODE; + if (node->rightnode == NODE) + byte |= RIGHTNODE; + if (node->offset <= 0xff) + offlen = 1; + else if (node->offset <= 0xffff) + offlen = 2; + else + offlen = 3; + offset = node->offset; + byte |= offlen << OFFLEN_SHIFT; + *data++ = byte; + index++; + while (offlen--) { + *data++ = offset & 0xff; + index++; + offset >>= 8; + } + } else if (node->left) { + if (node->leftnode == NODE) + byte |= TRIENODE; + *data++ = byte; + index++; + } else if (node->right) { + byte |= RIGHTNODE; + if (node->rightnode == NODE) + byte |= TRIENODE; + *data++ = byte; + index++; + } else { + assert(0); + } +skip: + while (node) { + bitmask = 1 << node->bitnum; + if (node->mark && (leftmask & bitmask) == 0) { + leftmask |= bitmask; + if (node->leftnode == LEAF) { + assert(node->left); + data = tree->leaf_emit(node->left, + data); + index += tree->leaf_size(node->left); + } else if (node->left) { + assert(node->leftnode == NODE); + indent += 1; + node = node->left; + break; + } + } + if (node->mark && (rightmask & bitmask) == 0) { + rightmask |= bitmask; + if (node->rightnode == LEAF) { + assert(node->right); + data = tree->leaf_emit(node->right, + data); + index += tree->leaf_size(node->right); + } else if (node->right) { + assert(node->rightnode==NODE); + indent += 1; + node = node->right; + break; + } + } + leftmask &= ~bitmask; + rightmask &= ~bitmask; + node = node->parent; + indent -= 1; + } + } +} + +/* ------------------------------------------------------------------ */ + +/* + * Unicode data. + * + * We need to keep track of the Canonical Combining Class, the Age, + * and decompositions for a code point. + * + * For the Age, we store the index into the ages table. Effectively + * this is a generation number that the table maps to a unicode + * version. + * + * The correction field is used to indicate that this entry is in the + * corrections array, which contains decompositions that were + * corrected in later revisions. The value of the correction field is + * the Unicode version in which the mapping was corrected. + */ +struct unicode_data { + unsigned int code; + int ccc; + int gen; + int correction; + unsigned int *utf32nfkdi; + unsigned int *utf32nfkdicf; + char *utf8nfkdi; + char *utf8nfkdicf; +}; + +struct unicode_data unicode_data[0x110000]; +struct unicode_data *corrections; +int corrections_count; + +struct tree *nfkdi_tree; +struct tree *nfkdicf_tree; + +struct tree *trees; +int trees_count; + +/* + * Check the corrections array to see if this entry was corrected at + * some point. + */ +static struct unicode_data * +corrections_lookup(struct unicode_data *u) +{ + int i; + + for (i = 0; i != corrections_count; i++) + if (u->code == corrections[i].code) + return &corrections[i]; + return u; +} + +static int +nfkdi_equal(void *l, void *r) +{ + struct unicode_data *left = l; + struct unicode_data *right = r; + + if (left->gen != right->gen) + return 0; + if (left->ccc != right->ccc) + return 0; + if (left->utf8nfkdi && right->utf8nfkdi && + strcmp(left->utf8nfkdi, right->utf8nfkdi) == 0) + return 1; + if (left->utf8nfkdi || right->utf8nfkdi) + return 0; + return 1; +} + +static int +nfkdicf_equal(void *l, void *r) +{ + struct unicode_data *left = l; + struct unicode_data *right = r; + + if (left->gen != right->gen) + return 0; + if (left->ccc != right->ccc) + return 0; + if (left->utf8nfkdicf && right->utf8nfkdicf && + strcmp(left->utf8nfkdicf, right->utf8nfkdicf) == 0) + return 1; + if (left->utf8nfkdicf && right->utf8nfkdicf) + return 0; + if (left->utf8nfkdicf || right->utf8nfkdicf) + return 0; + if (left->utf8nfkdi && right->utf8nfkdi && + strcmp(left->utf8nfkdi, right->utf8nfkdi) == 0) + return 1; + if (left->utf8nfkdi || right->utf8nfkdi) + return 0; + return 1; +} + +static void +nfkdi_print(void *l, int indent) +{ + struct unicode_data *leaf = l; + + printf("%*sleaf @ %p code %X ccc %d gen %d", indent, "", leaf, + leaf->code, leaf->ccc, leaf->gen); + if (leaf->utf8nfkdi) + printf(" nfkdi \"%s\"", (const char*)leaf->utf8nfkdi); + printf("\n"); +} + +static void +nfkdicf_print(void *l, int indent) +{ + struct unicode_data *leaf = l; + + printf("%*sleaf @ %p code %X ccc %d gen %d", indent, "", leaf, + leaf->code, leaf->ccc, leaf->gen); + if (leaf->utf8nfkdicf) + printf(" nfkdicf \"%s\"", (const char*)leaf->utf8nfkdicf); + else if (leaf->utf8nfkdi) + printf(" nfkdi \"%s\"", (const char*)leaf->utf8nfkdi); + printf("\n"); +} + +static int +nfkdi_mark(void *l) +{ + return 1; +} + +static int +nfkdicf_mark(void *l) +{ + struct unicode_data *leaf = l; + if (leaf->utf8nfkdicf) + return 1; + return 0; +} + +static int +correction_mark(void *l) +{ + struct unicode_data *leaf = l; + return leaf->correction; +} + +static int +nfkdi_size(void *l) +{ + struct unicode_data *leaf = l; + int size = 2; + if (leaf->utf8nfkdi) + size += strlen(leaf->utf8nfkdi) + 1; + return size; +} + +static int +nfkdicf_size(void *l) +{ + struct unicode_data *leaf = l; + int size = 2; + if (leaf->utf8nfkdicf) + size += strlen(leaf->utf8nfkdicf) + 1; + else if (leaf->utf8nfkdi) + size += strlen(leaf->utf8nfkdi) + 1; + return size; +} + +static int * +nfkdi_index(struct tree *tree, void *l) +{ + struct unicode_data *leaf = l; + return &tree->leafindex[leaf->code]; +} + +static int * +nfkdicf_index(struct tree *tree, void *l) +{ + struct unicode_data *leaf = l; + return &tree->leafindex[leaf->code]; +} + +static unsigned char * +nfkdi_emit(void *l, unsigned char *data) +{ + struct unicode_data *leaf = l; + unsigned char *s; + + *data++ = leaf->gen; + if (leaf->utf8nfkdi) { + *data++ = DECOMPOSE; + s = (unsigned char*)leaf->utf8nfkdi; + while ((*data++ = *s++) != 0) + ; + } else { + *data++ = leaf->ccc; + } + return data; +} + +static unsigned char * +nfkdicf_emit(void *l, unsigned char *data) +{ + struct unicode_data *leaf = l; + unsigned char *s; + + *data++ = leaf->gen; + if (leaf->utf8nfkdicf) { + *data++ = DECOMPOSE; + s = (unsigned char*)leaf->utf8nfkdicf; + while ((*data++ = *s++) != 0) + ; + } else if (leaf->utf8nfkdi) { + *data++ = DECOMPOSE; + s = (unsigned char*)leaf->utf8nfkdi; + while ((*data++ = *s++) != 0) + ; + } else { + *data++ = leaf->ccc; + } + return data; +} + +static void +utf8_create(struct unicode_data *data) +{ + char utf[18*4+1]; + char *u; + unsigned int *um; + int i; + + u = utf; + um = data->utf32nfkdi; + if (um) { + for (i = 0; um[i]; i++) + u += utf8key(um[i], u); + *u = '\0'; + data->utf8nfkdi = strdup((char*)utf); + } + u = utf; + um = data->utf32nfkdicf; + if (um) { + for (i = 0; um[i]; i++) + u += utf8key(um[i], u); + *u = '\0'; + if (!data->utf8nfkdi || strcmp(data->utf8nfkdi, (char*)utf)) + data->utf8nfkdicf = strdup((char*)utf); + } +} + +static void +utf8_init(void) +{ + unsigned int unichar; + int i; + + for (unichar = 0; unichar != 0x110000; unichar++) + utf8_create(&unicode_data[unichar]); + + for (i = 0; i != corrections_count; i++) + utf8_create(&corrections[i]); +} + +static void +trees_init(void) +{ + struct unicode_data *data; + unsigned int maxage; + unsigned int nextage; + int count; + int i; + int j; + + /* Count the number of different ages. */ + count = 0; + nextage = (unsigned int)-1; + do { + maxage = nextage; + nextage = 0; + for (i = 0; i <= corrections_count; i++) { + data = &corrections[i]; + if (nextage < data->correction && + data->correction < maxage) + nextage = data->correction; + } + count++; + } while (nextage); + + /* Two trees per age: nfkdi and nfkdicf */ + trees_count = count * 2; + trees = calloc(trees_count, sizeof(struct tree)); + + /* Assign ages to the trees. */ + count = trees_count; + nextage = (unsigned int)-1; + do { + maxage = nextage; + trees[--count].maxage = maxage; + trees[--count].maxage = maxage; + nextage = 0; + for (i = 0; i <= corrections_count; i++) { + data = &corrections[i]; + if (nextage < data->correction && + data->correction < maxage) + nextage = data->correction; + } + } while (nextage); + + /* The ages assigned above are off by one. */ + for (i = 0; i != trees_count; i++) { + j = 0; + while (ages[j] < trees[i].maxage) + j++; + trees[i].maxage = ages[j-1]; + } + + /* Set up the forwarding between trees. */ + trees[trees_count-2].next = &trees[trees_count-1]; + trees[trees_count-1].leaf_mark = nfkdi_mark; + trees[trees_count-2].leaf_mark = nfkdicf_mark; + for (i = 0; i != trees_count-2; i += 2) { + trees[i].next = &trees[trees_count-2]; + trees[i].leaf_mark = correction_mark; + trees[i+1].next = &trees[trees_count-1]; + trees[i+1].leaf_mark = correction_mark; + } + + /* Assign the callouts. */ + for (i = 0; i != trees_count; i += 2) { + trees[i].type = "nfkdicf"; + trees[i].leaf_equal = nfkdicf_equal; + trees[i].leaf_print = nfkdicf_print; + trees[i].leaf_size = nfkdicf_size; + trees[i].leaf_index = nfkdicf_index; + trees[i].leaf_emit = nfkdicf_emit; + + trees[i+1].type = "nfkdi"; + trees[i+1].leaf_equal = nfkdi_equal; + trees[i+1].leaf_print = nfkdi_print; + trees[i+1].leaf_size = nfkdi_size; + trees[i+1].leaf_index = nfkdi_index; + trees[i+1].leaf_emit = nfkdi_emit; + } + + /* Finish init. */ + for (i = 0; i != trees_count; i++) + trees[i].childnode = NODE; +} + +static void +trees_populate(void) +{ + struct unicode_data *data; + unsigned int unichar; + char keyval[4]; + int keylen; + int i; + + for (i = 0; i != trees_count; i++) { + if (verbose > 0) { + printf("Populating %s_%x\n", + trees[i].type, trees[i].maxage); + } + for (unichar = 0; unichar != 0x110000; unichar++) { + if (unicode_data[unichar].gen < 0) + continue; + keylen = utf8key(unichar, keyval); + data = corrections_lookup(&unicode_data[unichar]); + if (data->correction <= trees[i].maxage) + data = &unicode_data[unichar]; + insert(&trees[i], keyval, keylen, data); + } + } +} + +static void +trees_reduce(void) +{ + int i; + int size; + int changed; + + for (i = 0; i != trees_count; i++) + prune(&trees[i]); + for (i = 0; i != trees_count; i++) + mark_nodes(&trees[i]); + do { + size = 0; + for (i = 0; i != trees_count; i++) + size = index_nodes(&trees[i], size); + changed = 0; + for (i = 0; i != trees_count; i++) + changed += size_nodes(&trees[i]); + } while (changed); + + utf8data = calloc(size, 1); + utf8data_size = size; + for (i = 0; i != trees_count; i++) + emit(&trees[i], utf8data); + + if (verbose > 0) { + for (i = 0; i != trees_count; i++) { + printf("%s_%x idx %d\n", + trees[i].type, trees[i].maxage, trees[i].index); + } + } + + nfkdi = utf8data + trees[trees_count-1].index; + nfkdicf = utf8data + trees[trees_count-2].index; + + nfkdi_tree = &trees[trees_count-1]; + nfkdicf_tree = &trees[trees_count-2]; +} + +static void +verify(struct tree *tree) +{ + struct unicode_data *data; + utf8leaf_t *leaf; + unsigned int unichar; + char key[4]; + int report; + int nocf; + + if (verbose > 0) + printf("Verifying %s_%x\n", tree->type, tree->maxage); + nocf = strcmp(tree->type, "nfkdicf"); + + for (unichar = 0; unichar != 0x110000; unichar++) { + report = 0; + data = corrections_lookup(&unicode_data[unichar]); + if (data->correction <= tree->maxage) + data = &unicode_data[unichar]; + utf8key(unichar, key); + leaf = utf8lookup(tree, key); + if (!leaf) { + if (data->gen != -1) + report++; + if (unichar < 0xd800 || unichar > 0xdfff) + report++; + } else { + if (unichar >= 0xd800 && unichar <= 0xdfff) + report++; + if (data->gen == -1) + report++; + if (data->gen != LEAF_GEN(leaf)) + report++; + if (LEAF_CCC(leaf) == DECOMPOSE) { + if (nocf) { + if (!data->utf8nfkdi) { + report++; + } else if (strcmp(data->utf8nfkdi, + LEAF_STR(leaf))) { + report++; + } + } else { + if (!data->utf8nfkdicf && + !data->utf8nfkdi) { + report++; + } else if (data->utf8nfkdicf) { + if (strcmp(data->utf8nfkdicf, + LEAF_STR(leaf))) + report++; + } else if (strcmp(data->utf8nfkdi, + LEAF_STR(leaf))) { + report++; + } + } + } else if (data->ccc != LEAF_CCC(leaf)) { + report++; + } + } + if (report) { + printf("%X code %X gen %d ccc %d" + " nfdki -> \"%s\"", + unichar, data->code, data->gen, + data->ccc, + data->utf8nfkdi); + if (leaf) { + printf(" age %d ccc %d" + " nfdki -> \"%s\"\n", + LEAF_GEN(leaf), + LEAF_CCC(leaf), + LEAF_CCC(leaf) == DECOMPOSE ? + LEAF_STR(leaf) : ""); + } + printf("\n"); + } + } +} + +static void +trees_verify(void) +{ + int i; + + for (i = 0; i != trees_count; i++) + verify(&trees[i]); +} + +/* ------------------------------------------------------------------ */ + +static void +help(void) +{ + printf("Usage: %s [options]\n", argv0); + printf("\n"); + printf("This program creates an a data trie used for parsing and\n"); + printf("normalization of UTF-8 strings. The trie is derived from\n"); + printf("a set of input files from the Unicode character database\n"); + printf("found at: http://www.unicode.org/Public/UCD/latest/ucd/\n"); + printf("\n"); + printf("The generated tree supports two normalization forms:\n"); + printf("\n"); + printf("\tnfkdi:\n"); + printf("\t- Apply unicode normalization form NFKD.\n"); + printf("\t- Remove any Default_Ignorable_Code_Point.\n"); + printf("\n"); + printf("\tnfkdicf:\n"); + printf("\t- Apply unicode normalization form NFKD.\n"); + printf("\t- Remove any Default_Ignorable_Code_Point.\n"); + printf("\t- Apply a full casefold (C + F).\n"); + printf("\n"); + printf("These forms were chosen as being most useful when dealing\n"); + printf("with file names: NFKD catches most cases where characters\n"); + printf("should be considered equivalent. The ignorables are mostly\n"); + printf("invisible, making names hard to type.\n"); + printf("\n"); + printf("The options to specify the files to be used are listed\n"); + printf("below with their default values, which are the names used\n"); + printf("by version 7.0.0 of the Unicode Character Database.\n"); + printf("\n"); + printf("The input files:\n"); + printf("\t-a %s\n", AGE_NAME); + printf("\t-c %s\n", CCC_NAME); + printf("\t-p %s\n", PROP_NAME); + printf("\t-d %s\n", DATA_NAME); + printf("\t-f %s\n", FOLD_NAME); + printf("\t-n %s\n", NORM_NAME); + printf("\n"); + printf("Additionally, the generated tables are tested using:\n"); + printf("\t-t %s\n", TEST_NAME); + printf("\n"); + printf("Finally, the output file:\n"); + printf("\t-o %s\n", UTF8_NAME); + printf("\n"); +} + +static void +usage(void) +{ + help(); + exit(1); +} + +static void +open_fail(const char *name, int error) +{ + printf("Error %d opening %s: %s\n", error, name, strerror(error)); + exit(1); +} + +static void +file_fail(const char *filename) +{ + printf("Error parsing %s\n", filename); + exit(1); +} + +static void +line_fail(const char *filename, const char *line) +{ + printf("Error parsing %s:%s\n", filename, line); + exit(1); +} + +/* ------------------------------------------------------------------ */ + +static void +print_utf32(unsigned int *utf32str) +{ + int i; + for (i = 0; utf32str[i]; i++) + printf(" %X", utf32str[i]); +} + +static void +print_utf32nfkdi(unsigned int unichar) +{ + printf(" %X ->", unichar); + print_utf32(unicode_data[unichar].utf32nfkdi); + printf("\n"); +} + +static void +print_utf32nfkdicf(unsigned int unichar) +{ + printf(" %X ->", unichar); + print_utf32(unicode_data[unichar].utf32nfkdicf); + printf("\n"); +} + +/* ------------------------------------------------------------------ */ + +static void +age_init(void) +{ + FILE *file; + unsigned int first; + unsigned int last; + unsigned int unichar; + unsigned int major; + unsigned int minor; + unsigned int revision; + int gen; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", age_name); + + file = fopen(age_name, "r"); + if (!file) + open_fail(age_name, errno); + count = 0; + + gen = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "# Age=V%d_%d_%d", + &major, &minor, &revision); + if (ret == 3) { + ages_count++; + if (verbose > 1) + printf(" Age V%d_%d_%d\n", + major, minor, revision); + if (!age_valid(major, minor, revision)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "# Age=V%d_%d", &major, &minor); + if (ret == 2) { + ages_count++; + if (verbose > 1) + printf(" Age V%d_%d\n", major, minor); + if (!age_valid(major, minor, 0)) + line_fail(age_name, line); + continue; + } + } + + /* We must have found something above. */ + if (verbose > 1) + printf("%d age entries\n", ages_count); + if (ages_count == 0 || ages_count > MAXGEN) + file_fail(age_name); + + /* There is a 0 entry. */ + ages_count++; + ages = calloc(ages_count + 1, sizeof(*ages)); + /* And a guard entry. */ + ages[ages_count] = (unsigned int)-1; + + rewind(file); + count = 0; + gen = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "# Age=V%d_%d_%d", + &major, &minor, &revision); + if (ret == 3) { + ages[++gen] = + UNICODE_AGE(major, minor, revision); + if (verbose > 1) + printf(" Age V%d_%d_%d = gen %d\n", + major, minor, revision, gen); + if (!age_valid(major, minor, revision)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "# Age=V%d_%d", &major, &minor); + if (ret == 2) { + ages[++gen] = UNICODE_AGE(major, minor, 0); + if (verbose > 1) + printf(" Age V%d_%d = %d\n", + major, minor, gen); + if (!age_valid(major, minor, 0)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "%X..%X ; %d.%d #", + &first, &last, &major, &minor); + if (ret == 4) { + for (unichar = first; unichar <= last; unichar++) + unicode_data[unichar].gen = gen; + count += 1 + last - first; + if (verbose > 1) + printf(" %X..%X gen %d\n", first, last, gen); + if (!utf32valid(first) || !utf32valid(last)) + line_fail(age_name, line); + continue; + } + ret = sscanf(line, "%X ; %d.%d #", &unichar, &major, &minor); + if (ret == 3) { + unicode_data[unichar].gen = gen; + count++; + if (verbose > 1) + printf(" %X gen %d\n", unichar, gen); + if (!utf32valid(unichar)) + line_fail(age_name, line); + continue; + } + } + unicode_maxage = ages[gen]; + fclose(file); + + /* Nix surrogate block */ + if (verbose > 1) + printf(" Removing surrogate block D800..DFFF\n"); + for (unichar = 0xd800; unichar <= 0xdfff; unichar++) + unicode_data[unichar].gen = -1; + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(age_name); +} + +static void +ccc_init(void) +{ + FILE *file; + unsigned int first; + unsigned int last; + unsigned int unichar; + unsigned int value; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", ccc_name); + + file = fopen(ccc_name, "r"); + if (!file) + open_fail(ccc_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X..%X ; %d #", &first, &last, &value); + if (ret == 3) { + for (unichar = first; unichar <= last; unichar++) { + unicode_data[unichar].ccc = value; + count++; + } + if (verbose > 1) + printf(" %X..%X ccc %d\n", first, last, value); + if (!utf32valid(first) || !utf32valid(last)) + line_fail(ccc_name, line); + continue; + } + ret = sscanf(line, "%X ; %d #", &unichar, &value); + if (ret == 2) { + unicode_data[unichar].ccc = value; + count++; + if (verbose > 1) + printf(" %X ccc %d\n", unichar, value); + if (!utf32valid(unichar)) + line_fail(ccc_name, line); + continue; + } + } + fclose(file); + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(ccc_name); +} + +static void +nfkdi_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + char *s; + unsigned int *um; + int count; + int i; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", data_name); + file = fopen(data_name, "r"); + if (!file) + open_fail(data_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X;%*[^;];%*[^;];%*[^;];%*[^;];%[^;];", + &unichar, buf0); + if (ret != 2) + continue; + if (!utf32valid(unichar)) + line_fail(data_name, line); + + s = buf0; + /* skip over */ + if (*s == '<') + while (*s++ != ' ') + ; + /* decode the decomposition into UTF-32 */ + i = 0; + while (*s) { + mapping[i] = strtoul(s, &s, 16); + if (!utf32valid(mapping[i])) + line_fail(data_name, line); + i++; + } + mapping[i++] = 0; + + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdi = um; + + if (verbose > 1) + print_utf32nfkdi(unichar); + count++; + } + fclose(file); + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(data_name); +} + +static void +nfkdicf_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + char status; + char *s; + unsigned int *um; + int i; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", fold_name); + file = fopen(fold_name, "r"); + if (!file) + open_fail(fold_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X; %c; %[^;];", &unichar, &status, buf0); + if (ret != 3) + continue; + if (!utf32valid(unichar)) + line_fail(fold_name, line); + /* Use the C+F casefold. */ + if (status != 'C' && status != 'F') + continue; + s = buf0; + if (*s == '<') + while (*s++ != ' ') + ; + i = 0; + while (*s) { + mapping[i] = strtoul(s, &s, 16); + if (!utf32valid(mapping[i])) + line_fail(fold_name, line); + i++; + } + mapping[i++] = 0; + + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + + if (verbose > 1) + print_utf32nfkdicf(unichar); + count++; + } + fclose(file); + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(fold_name); +} + +static void +ignore_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int first; + unsigned int last; + unsigned int *um; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", prop_name); + file = fopen(prop_name, "r"); + if (!file) + open_fail(prop_name, errno); + assert(file); + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X..%X ; %s # ", &first, &last, buf0); + if (ret == 3) { + if (strcmp(buf0, "Default_Ignorable_Code_Point")) + continue; + if (!utf32valid(first) || !utf32valid(last)) + line_fail(prop_name, line); + for (unichar = first; unichar <= last; unichar++) { + free(unicode_data[unichar].utf32nfkdi); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdi = um; + free(unicode_data[unichar].utf32nfkdicf); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdicf = um; + count++; + } + if (verbose > 1) + printf(" %X..%X Default_Ignorable_Code_Point\n", + first, last); + continue; + } + ret = sscanf(line, "%X ; %s # ", &unichar, buf0); + if (ret == 2) { + if (strcmp(buf0, "Default_Ignorable_Code_Point")) + continue; + if (!utf32valid(unichar)) + line_fail(prop_name, line); + free(unicode_data[unichar].utf32nfkdi); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdi = um; + free(unicode_data[unichar].utf32nfkdicf); + um = malloc(sizeof(unsigned int)); + *um = 0; + unicode_data[unichar].utf32nfkdicf = um; + if (verbose > 1) + printf(" %X Default_Ignorable_Code_Point\n", + unichar); + count++; + continue; + } + } + fclose(file); + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(prop_name); +} + +static void +corrections_init(void) +{ + FILE *file; + unsigned int unichar; + unsigned int major; + unsigned int minor; + unsigned int revision; + unsigned int age; + unsigned int *um; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + char *s; + int i; + int count; + int ret; + + if (verbose > 0) + printf("Parsing %s\n", norm_name); + file = fopen(norm_name, "r"); + if (!file) + open_fail(norm_name, errno); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X;%[^;];%[^;];%d.%d.%d #", + &unichar, buf0, buf1, + &major, &minor, &revision); + if (ret != 6) + continue; + if (!utf32valid(unichar) || !age_valid(major, minor, revision)) + line_fail(norm_name, line); + count++; + } + corrections = calloc(count, sizeof(struct unicode_data)); + corrections_count = count; + rewind(file); + + count = 0; + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%X;%[^;];%[^;];%d.%d.%d #", + &unichar, buf0, buf1, + &major, &minor, &revision); + if (ret != 6) + continue; + if (!utf32valid(unichar) || !age_valid(major, minor, revision)) + line_fail(norm_name, line); + corrections[count] = unicode_data[unichar]; + assert(corrections[count].code == unichar); + age = UNICODE_AGE(major, minor, revision); + corrections[count].correction = age; + + i = 0; + s = buf0; + while (*s) { + mapping[i] = strtoul(s, &s, 16); + if (!utf32valid(mapping[i])) + line_fail(norm_name, line); + i++; + } + mapping[i++] = 0; + + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + corrections[count].utf32nfkdi = um; + + if (verbose > 1) + printf(" %X -> %s -> %s V%d_%d_%d\n", + unichar, buf0, buf1, major, minor, revision); + count++; + } + fclose(file); + + if (verbose > 0) + printf("Found %d entries\n", count); + if (count == 0) + file_fail(norm_name); +} + +/* ------------------------------------------------------------------ */ + +/* + * Hangul decomposition (algorithm from Section 3.12 of Unicode 6.3.0) + * + * AC00;;Lo;0;L;;;;;N;;;;; + * D7A3;;Lo;0;L;;;;;N;;;;; + * + * SBase = 0xAC00 + * LBase = 0x1100 + * VBase = 0x1161 + * TBase = 0x11A7 + * LCount = 19 + * VCount = 21 + * TCount = 28 + * NCount = 588 (VCount * TCount) + * SCount = 11172 (LCount * NCount) + * + * Decomposition: + * SIndex = s - SBase + * + * LV (Canonical/Full) + * LIndex = SIndex / NCount + * VIndex = (Sindex % NCount) / TCount + * LPart = LBase + LIndex + * VPart = VBase + VIndex + * + * LVT (Canonical) + * LVIndex = (SIndex / TCount) * TCount + * TIndex = (Sindex % TCount + * LVPart = LBase + LVIndex + * TPart = TBase + TIndex + * + * LVT (Full) + * LIndex = SIndex / NCount + * VIndex = (Sindex % NCount) / TCount + * TIndex = (Sindex % TCount + * LPart = LBase + LIndex + * VPart = VBase + VIndex + * if (TIndex == 0) { + * d = + * } else { + * TPart = TBase + TIndex + * d = + * } + * + */ + +static void +hangul_decompose(void) +{ + unsigned int sb = 0xAC00; + unsigned int lb = 0x1100; + unsigned int vb = 0x1161; + unsigned int tb = 0x11a7; + /* unsigned int lc = 19; */ + unsigned int vc = 21; + unsigned int tc = 28; + unsigned int nc = (vc * tc); + /* unsigned int sc = (lc * nc); */ + unsigned int unichar; + unsigned int mapping[4]; + unsigned int *um; + int count; + int i; + + if (verbose > 0) + printf("Decomposing hangul\n"); + /* Hangul */ + count = 0; + for (unichar = 0xAC00; unichar <= 0xD7A3; unichar++) { + unsigned int si = unichar - sb; + unsigned int li = si / nc; + unsigned int vi = (si % nc) / tc; + unsigned int ti = si % tc; + + i = 0; + mapping[i++] = lb + li; + mapping[i++] = vb + vi; + if (ti) + mapping[i++] = tb + ti; + mapping[i++] = 0; + + assert(!unicode_data[unichar].utf32nfkdi); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdi = um; + + assert(!unicode_data[unichar].utf32nfkdicf); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + + if (verbose > 1) + print_utf32nfkdi(unichar); + + count++; + } + if (verbose > 0) + printf("Created %d entries\n", count); +} + +static void +nfkdi_decompose(void) +{ + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + unsigned int *um; + unsigned int *dc; + int count; + int i; + int j; + int ret; + + if (verbose > 0) + printf("Decomposing nfkdi\n"); + + count = 0; + for (unichar = 0; unichar != 0x110000; unichar++) { + if (!unicode_data[unichar].utf32nfkdi) + continue; + for (;;) { + ret = 1; + i = 0; + um = unicode_data[unichar].utf32nfkdi; + while (*um) { + dc = unicode_data[*um].utf32nfkdi; + if (dc) { + for (j = 0; dc[j]; j++) + mapping[i++] = dc[j]; + ret = 0; + } else { + mapping[i++] = *um; + } + um++; + } + mapping[i++] = 0; + if (ret) + break; + free(unicode_data[unichar].utf32nfkdi); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdi = um; + } + /* Add this decomposition to nfkdicf if there is no entry. */ + if (!unicode_data[unichar].utf32nfkdicf) { + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + } + if (verbose > 1) + print_utf32nfkdi(unichar); + count++; + } + if (verbose > 0) + printf("Processed %d entries\n", count); +} + +static void +nfkdicf_decompose(void) +{ + unsigned int unichar; + unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */ + unsigned int *um; + unsigned int *dc; + int count; + int i; + int j; + int ret; + + if (verbose > 0) + printf("Decomposing nfkdicf\n"); + count = 0; + for (unichar = 0; unichar != 0x110000; unichar++) { + if (!unicode_data[unichar].utf32nfkdicf) + continue; + for (;;) { + ret = 1; + i = 0; + um = unicode_data[unichar].utf32nfkdicf; + while (*um) { + dc = unicode_data[*um].utf32nfkdicf; + if (dc) { + for (j = 0; dc[j]; j++) + mapping[i++] = dc[j]; + ret = 0; + } else { + mapping[i++] = *um; + } + um++; + } + mapping[i++] = 0; + if (ret) + break; + free(unicode_data[unichar].utf32nfkdicf); + um = malloc(i * sizeof(unsigned int)); + memcpy(um, mapping, i * sizeof(unsigned int)); + unicode_data[unichar].utf32nfkdicf = um; + } + if (verbose > 1) + print_utf32nfkdicf(unichar); + count++; + } + if (verbose > 0) + printf("Processed %d entries\n", count); +} + +/* ------------------------------------------------------------------ */ + +int utf8agemax(struct tree *, const char *); +int utf8nagemax(struct tree *, const char *, size_t); +int utf8agemin(struct tree *, const char *); +int utf8nagemin(struct tree *, const char *, size_t); +ssize_t utf8len(struct tree *, const char *); +ssize_t utf8nlen(struct tree *, const char *, size_t); +struct utf8cursor; +int utf8cursor(struct utf8cursor *, struct tree *, const char *); +int utf8ncursor(struct utf8cursor *, struct tree *, const char *, size_t); +int utf8byte(struct utf8cursor *); + +/* + * Use trie to scan s, touching at most len bytes. + * Returns the leaf if one exists, NULL otherwise. + * + * A non-NULL return guarantees that the UTF-8 sequence starting at s + * is well-formed and corresponds to a known unicode code point. The + * shorthand for this will be "is valid UTF-8 unicode". + */ +static utf8leaf_t * +utf8nlookup(struct tree *tree, const char *s, size_t len) +{ + utf8trie_t *trie = utf8data + tree->index; + int offlen; + int offset; + int mask; + int node; + + if (!tree) + return NULL; + if (len == 0) + return NULL; + node = 1; + while (node) { + offlen = (*trie & OFFLEN) >> OFFLEN_SHIFT; + if (*trie & NEXTBYTE) { + if (--len == 0) + return NULL; + s++; + } + mask = 1 << (*trie & BITNUM); + if (*s & mask) { + /* Right leg */ + if (offlen) { + /* Right node at offset of trie */ + node = (*trie & RIGHTNODE); + offset = trie[offlen]; + while (--offlen) { + offset <<= 8; + offset |= trie[offlen]; + } + trie += offset; + } else if (*trie & RIGHTPATH) { + /* Right node after this node */ + node = (*trie & TRIENODE); + trie++; + } else { + /* No right node. */ + node = 0; + trie = NULL; + } + } else { + /* Left leg */ + if (offlen) { + /* Left node after this node. */ + node = (*trie & LEFTNODE); + trie += offlen + 1; + } else if (*trie & RIGHTPATH) { + /* No left node. */ + node = 0; + trie = NULL; + } else { + /* Left node after this node */ + node = (*trie & TRIENODE); + trie++; + } + } + } + return trie; +} + +/* + * Use trie to scan s. + * Returns the leaf if one exists, NULL otherwise. + * + * Forwards to trie_nlookup(). + */ +static utf8leaf_t * +utf8lookup(struct tree *tree, const char *s) +{ + return utf8nlookup(tree, s, (size_t)-1); +} + +/* + * Return the number of bytes used by the current UTF-8 sequence. + * Assumes the input points to the first byte of a valid UTF-8 + * sequence. + */ +static inline int +utf8clen(const char *s) +{ + unsigned char c = *s; + return 1 + (c >= 0xC0) + (c >= 0xE0) + (c >= 0xF0); +} + +/* + * Maximum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if only non-assigned code points are used. + */ +int +utf8agemax(struct tree *tree, const char *s) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!tree) + return -1; + while (*s) { + if (!(leaf = utf8lookup(tree, s))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age > age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} + +/* + * Minimum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if non-assigned code points are used. + */ +int +utf8agemin(struct tree *tree, const char *s) +{ + utf8leaf_t *leaf; + int age = tree->maxage; + int leaf_age; + + if (!tree) + return -1; + while (*s) { + if (!(leaf = utf8lookup(tree, s))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age < age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemax(struct tree *tree, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!tree) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(tree, s, len))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age > age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemin(struct tree *tree, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int leaf_age; + int age = tree->maxage; + + if (!tree) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(tree, s, len))) + return -1; + leaf_age = ages[LEAF_GEN(leaf)]; + if (leaf_age <= tree->maxage && leaf_age < age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} + +/* + * Length of the normalization of s. + * Return -1 if s is not valid UTF-8 unicode. + * + * A string of Default_Ignorable_Code_Point has length 0. + */ +ssize_t +utf8len(struct tree *tree, const char *s) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!tree) + return -1; + while (*s) { + if (!(leaf = utf8lookup(tree, s))) + return -1; + if (ages[LEAF_GEN(leaf)] > tree->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + s += utf8clen(s); + } + return ret; +} + +/* + * Length of the normalization of s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +ssize_t +utf8nlen(struct tree *tree, const char *s, size_t len) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!tree) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(tree, s, len))) + return -1; + if (ages[LEAF_GEN(leaf)] > tree->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + len -= utf8clen(s); + s += utf8clen(s); + } + return ret; +} + +/* + * Cursor structure used by the normalizer. + */ +struct utf8cursor { + struct tree *tree; + const char *s; + const char *p; + const char *ss; + const char *sp; + unsigned int len; + unsigned int slen; + short int ccc; + short int nccc; + unsigned int unichar; +}; + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * s : string. + * len : length of s. + * u8c : pointer to cursor. + * trie : utf8trie_t to use for normalization. + * + * Returns -1 on error, 0 on success. + */ +int +utf8ncursor( + struct utf8cursor *u8c, + struct tree *tree, + const char *s, + size_t len) +{ + if (!tree) + return -1; + if (!s) + return -1; + u8c->tree = tree; + u8c->s = s; + u8c->p = NULL; + u8c->ss = NULL; + u8c->sp = NULL; + u8c->len = len; + u8c->slen = 0; + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + u8c->unichar = 0; + /* Check we didn't clobber the maximum length. */ + if (u8c->len != len) + return -1; + /* The first byte of s may not be an utf8 continuation. */ + if (len > 0 && (*s & 0xC0) == 0x80) + return -1; + return 0; +} + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * s : NUL-terminated string. + * u8c : pointer to cursor. + * trie : utf8trie_t to use for normalization. + * + * Returns -1 on error, 0 on success. + */ +int +utf8cursor( + struct utf8cursor *u8c, + struct tree *tree, + const char *s) +{ + return utf8ncursor(u8c, tree, s, (unsigned int)-1); +} + +/* + * Get one byte from the normalized form of the string described by u8c. + * + * Returns the byte cast to an unsigned char on succes, and -1 on failure. + * + * The cursor keeps track of the location in the string in u8c->s. + * When a character is decomposed, the current location is stored in + * u8c->p, and u8c->s is set to the start of the decomposition. Note + * that bytes from a decomposition do not count against u8c->len. + * + * Characters are emitted if they match the current CCC in u8c->ccc. + * Hitting end-of-string while u8c->ccc == STOPPER means we're done, + * and the function returns 0 in that case. + * + * Sorting by CCC is done by repeatedly scanning the string. The + * values of u8c->s and u8c->p are stored in u8c->ss and u8c->sp at + * the start of the scan. The first pass finds the lowest CCC to be + * emitted and stores it in u8c->nccc, the second pass emits the + * characters with this CCC and finds the next lowest CCC. This limits + * the number of passes to 1 + the number of different CCCs in the + * sequence being scanned. + * + * Therefore: + * u8c->p != NULL -> a decomposition is being scanned. + * u8c->ss != NULL -> this is a repeating scan. + * u8c->ccc == -1 -> this is the first scan of a repeating scan. + */ +int +utf8byte(struct utf8cursor *u8c) +{ + utf8leaf_t *leaf; + int ccc; + + for (;;) { + /* Check for the end of a decomposed character. */ + if (u8c->p && *u8c->s == '\0') { + u8c->s = u8c->p; + u8c->p = NULL; + } + + /* Check for end-of-string. */ + if (!u8c->p && (u8c->len == 0 || *u8c->s == '\0')) { + /* There is no next byte. */ + if (u8c->ccc == STOPPER) + return 0; + /* End-of-string during a scan counts as a stopper. */ + ccc = STOPPER; + goto ccc_mismatch; + } else if ((*u8c->s & 0xC0) == 0x80) { + /* This is a continuation of the current character. */ + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Look up the data for the current character. */ + if (u8c->p) + leaf = utf8lookup(u8c->tree, u8c->s); + else + leaf = utf8nlookup(u8c->tree, u8c->s, u8c->len); + + /* No leaf found implies that the input is a binary blob. */ + if (!leaf) + return -1; + + /* Characters that are too new have CCC 0. */ + if (ages[LEAF_GEN(leaf)] > u8c->tree->maxage) { + ccc = STOPPER; + } else if ((ccc = LEAF_CCC(leaf)) == DECOMPOSE) { + u8c->len -= utf8clen(u8c->s); + u8c->p = u8c->s + utf8clen(u8c->s); + u8c->s = LEAF_STR(leaf); + /* Empty decomposition implies CCC 0. */ + if (*u8c->s == '\0') { + if (u8c->ccc == STOPPER) + continue; + ccc = STOPPER; + goto ccc_mismatch; + } + leaf = utf8lookup(u8c->tree, u8c->s); + ccc = LEAF_CCC(leaf); + } + u8c->unichar = utf8code(u8c->s); + + /* + * If this is not a stopper, then see if it updates + * the next canonical class to be emitted. + */ + if (ccc != STOPPER && u8c->ccc < ccc && ccc < u8c->nccc) + u8c->nccc = ccc; + + /* + * Return the current byte if this is the current + * combining class. + */ + if (ccc == u8c->ccc) { + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Current combining class mismatch. */ + ccc_mismatch: + if (u8c->nccc == STOPPER) { + /* + * Scan forward for the first canonical class + * to be emitted. Save the position from + * which to restart. + */ + assert(u8c->ccc == STOPPER); + u8c->ccc = MINCCC - 1; + u8c->nccc = ccc; + u8c->sp = u8c->p; + u8c->ss = u8c->s; + u8c->slen = u8c->len; + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (ccc != STOPPER) { + /* Not a stopper, and not the ccc we're emitting. */ + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (u8c->nccc != MAXCCC + 1) { + /* At a stopper, restart for next ccc. */ + u8c->ccc = u8c->nccc; + u8c->nccc = MAXCCC + 1; + u8c->s = u8c->ss; + u8c->p = u8c->sp; + u8c->len = u8c->slen; + } else { + /* All done, proceed from here. */ + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + u8c->sp = NULL; + u8c->ss = NULL; + u8c->slen = 0; + } + } +} + +/* ------------------------------------------------------------------ */ + +static int +normalize_line(struct tree *tree) +{ + char *s; + char *t; + int c; + struct utf8cursor u8c; + + /* First test: null-terminated string. */ + s = buf2; + t = buf3; + if (utf8cursor(&u8c, tree, s)) + return -1; + while ((c = utf8byte(&u8c)) > 0) + if (c != (unsigned char)*t++) + return -1; + if (c < 0) + return -1; + if (*t != 0) + return -1; + + /* Second test: length-limited string. */ + s = buf2; + /* Replace NUL with a value that will cause an error if seen. */ + s[strlen(s) + 1] = -1; + t = buf3; + if (utf8cursor(&u8c, tree, s)) + return -1; + while ((c = utf8byte(&u8c)) > 0) + if (c != (unsigned char)*t++) + return -1; + if (c < 0) + return -1; + if (*t != 0) + return -1; + + return 0; +} + +static void +normalization_test(void) +{ + FILE *file; + unsigned int unichar; + struct unicode_data *data; + char *s; + char *t; + int ret; + int ignorables; + int tests = 0; + int failures = 0; + + if (verbose > 0) + printf("Parsing %s\n", test_name); + /* Step one, read data from file. */ + file = fopen(test_name, "r"); + if (!file) + open_fail(test_name, errno); + + while (fgets(line, LINESIZE, file)) { + ret = sscanf(line, "%[^;];%*[^;];%*[^;];%*[^;];%[^;];", + buf0, buf1); + if (ret != 2 || *line == '#') + continue; + s = buf0; + t = buf2; + while (*s) { + unichar = strtoul(s, &s, 16); + t += utf8key(unichar, t); + } + *t = '\0'; + + ignorables = 0; + s = buf1; + t = buf3; + while (*s) { + unichar = strtoul(s, &s, 16); + data = &unicode_data[unichar]; + if (data->utf8nfkdi && !*data->utf8nfkdi) + ignorables = 1; + else + t += utf8key(unichar, t); + } + *t = '\0'; + + tests++; + if (normalize_line(nfkdi_tree) < 0) { + printf("\nline %s -> %s", buf0, buf1); + if (ignorables) + printf(" (ignorables removed)"); + printf(" failure\n"); + failures++; + } + } + fclose(file); + if (verbose > 0) + printf("Ran %d tests with %d failures\n", tests, failures); + if (failures) + file_fail(test_name); +} + +/* ------------------------------------------------------------------ */ + +static void +write_file(void) +{ + FILE *file; + int i; + int j; + int t; + int gen; + + if (verbose > 0) + printf("Writing %s\n", utf8_name); + file = fopen(utf8_name, "w"); + if (!file) + open_fail(utf8_name, errno); + + fprintf(file, "/* This file is generated code, do not edit. */\n"); + fprintf(file, "#ifndef __INCLUDED_FROM_UTF8NORM_C__\n"); + fprintf(file, "#error Only xfs_utf8.c may include this file.\n"); + fprintf(file, "#endif\n"); + fprintf(file, "\n"); + fprintf(file, "const unsigned int utf8version = %#x;\n", + unicode_maxage); + fprintf(file, "\n"); + fprintf(file, "static const unsigned int utf8agetab[] = {\n"); + for (i = 0; i != ages_count; i++) + fprintf(file, "\t%#x%s\n", ages[i], + ages[i] == unicode_maxage ? "" : ","); + fprintf(file, "};\n"); + fprintf(file, "\n"); + fprintf(file, "static const struct utf8data utf8nfkdicfdata[] = {\n"); + t = 0; + for (gen = 0; gen < ages_count; gen++) { + fprintf(file, "\t{ %#x, %d }%s\n", + ages[gen], trees[t].index, + ages[gen] == unicode_maxage ? "" : ","); + if (trees[t].maxage == ages[gen]) + t += 2; + } + fprintf(file, "};\n"); + fprintf(file, "\n"); + fprintf(file, "static const struct utf8data utf8nfkdidata[] = {\n"); + t = 1; + for (gen = 0; gen < ages_count; gen++) { + fprintf(file, "\t{ %#x, %d }%s\n", + ages[gen], trees[t].index, + ages[gen] == unicode_maxage ? "" : ","); + if (trees[t].maxage == ages[gen]) + t += 2; + } + fprintf(file, "};\n"); + fprintf(file, "\n"); + fprintf(file, "static const unsigned char utf8data[%zd] = {\n", + utf8data_size); + t = 0; + for (i = 0; i != utf8data_size; i += 16) { + if (i == trees[t].index) { + fprintf(file, "\t/* %s_%x */\n", + trees[t].type, trees[t].maxage); + if (t < trees_count-1) + t++; + } + fprintf(file, "\t"); + for (j = i; j != i + 16; j++) + fprintf(file, "0x%.2x%s", utf8data[j], + (j < utf8data_size -1 ? "," : "")); + fprintf(file, "\n"); + } + fprintf(file, "};\n"); + fclose(file); +} + +/* ------------------------------------------------------------------ */ + +int +main(int argc, char *argv[]) +{ + unsigned int unichar; + int opt; + + argv0 = argv[0]; + + while ((opt = getopt(argc, argv, "a:c:d:f:hn:o:p:t:v")) != -1) { + switch (opt) { + case 'a': + age_name = optarg; + break; + case 'c': + ccc_name = optarg; + break; + case 'd': + data_name = optarg; + break; + case 'f': + fold_name = optarg; + break; + case 'n': + norm_name = optarg; + break; + case 'o': + utf8_name = optarg; + break; + case 'p': + prop_name = optarg; + break; + case 't': + test_name = optarg; + break; + case 'v': + verbose++; + break; + case 'h': + help(); + exit(0); + default: + usage(); + } + } + + if (verbose > 1) + help(); + for (unichar = 0; unichar != 0x110000; unichar++) + unicode_data[unichar].code = unichar; + age_init(); + ccc_init(); + nfkdi_init(); + nfkdicf_init(); + ignore_init(); + corrections_init(); + hangul_decompose(); + nfkdi_decompose(); + nfkdicf_decompose(); + utf8_init(); + trees_init(); + trees_populate(); + trees_reduce(); + trees_verify(); + /* Prevent "unused function" warning. */ + (void)lookup(nfkdi_tree, " "); + if (verbose > 2) + tree_walk(nfkdi_tree); + if (verbose > 2) + tree_walk(nfkdicf_tree); + normalization_test(); + write_file(); + + return 0; +} -- 1.7.12.4 From bpm@sgi.com Fri Sep 19 11:07:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD, T_FILL_THIS_FORM_SHORT autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 3D39E29DF9 for ; Fri, 19 Sep 2014 11:07:45 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id A02898F8052; Fri, 19 Sep 2014 09:07:41 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 3D7DB4266DC; Fri, 19 Sep 2014 11:07:41 -0500 (CDT) Date: Fri, 19 Sep 2014 11:07:41 -0500 From: Ben Myers To: linux-fsdevel@vger.kernel.org Cc: xfs@oss.sgi.com, olaf@sgi.com, tinguely@sgi.com Subject: [PATCH 07b/13] libxfs: add supporting code for UTF-8. Message-ID: <20140919160741.GG4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140918203114.GN4482@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918203114.GN4482@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) From: Olaf Weber Supporting functions for UTF-8 normalization are in utf8norm.c with the header utf8norm.h. Two normalization forms are supported: nfkdi and nfkdicf. nfkdi: - Apply unicode normalization form NFKD. - Remove any Default_Ignorable_Code_Point. nfkdicf: - Apply unicode normalization form NFKD. - Remove any Default_Ignorable_Code_Point. - Apply a full casefold (C + F). For the purposes of the code, a string is valid UTF-8 if: - The values encoded are 0x1..0x10FFFF. - The surrogate codepoints 0xD800..0xDFFFF are not encoded. - The shortest possible encoding is used for all values. The supporting functions work on null-terminated strings (utf8 prefix) and on length-limited strings (utf8n prefix). Signed-off-by: Olaf Weber --- include/utf8norm.h | 111 ++++++++++ libxfs/Makefile | 1 + libxfs/utf8norm.c | 628 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 740 insertions(+) create mode 100644 include/utf8norm.h create mode 100644 libxfs/utf8norm.c diff --git a/include/utf8norm.h b/include/utf8norm.h new file mode 100644 index 0000000..6aa3391 --- /dev/null +++ b/include/utf8norm.h @@ -0,0 +1,111 @@ +/* + * Copyright (c) 2014 SGI. + * 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 UTF8NORM_H +#define UTF8NORM_H + +/* An opaque type used to determine the normalization in use. */ +typedef const struct utf8data *utf8data_t; + +/* Encoding a unicode version number as a single unsigned int. */ +#define UNICODE_MAJ_SHIFT (16) +#define UNICODE_MIN_SHIFT (8) + +#define UNICODE_AGE(MAJ,MIN,REV) \ + (((unsigned int)(MAJ) << UNICODE_MAJ_SHIFT) | \ + ((unsigned int)(MIN) << UNICODE_MIN_SHIFT) | \ + ((unsigned int)(REV))) + +/* Highest unicode version supported by the data tables. */ +extern const unsigned int utf8version; + +/* + * Look for the correct utf8data_t for a unicode version. + * Returns NULL if the version requested is too new. + * + * Two normalization forms are supported: nfkdi and nfkdicf. + * + * nfkdi: + * - Apply unicode normalization form NFKD. + * - Remove any Default_Ignorable_Code_Point. + * + * nfkdicf: + * - Apply unicode normalization form NFKD. + * - Remove any Default_Ignorable_Code_Point. + * - Apply a full casefold (C + F). + */ +extern utf8data_t utf8nfkdi(unsigned int); +extern utf8data_t utf8nfkdicf(unsigned int); + +/* + * Determine the maximum age of any unicode character in the string. + * Returns 0 if only unassigned code points are present. + * Returns -1 if the input is not valid UTF-8. + */ +extern int utf8agemax(utf8data_t, const char *); +extern int utf8nagemax(utf8data_t, const char *, size_t); + +/* + * Determine the minimum age of any unicode character in the string. + * Returns 0 if any unassigned code points are present. + * Returns -1 if the input is not valid UTF-8. + */ +extern int utf8agemin(utf8data_t, const char *); +extern int utf8nagemin(utf8data_t, const char *, size_t); + +/* + * Determine the length of the normalized from of the string, + * excluding any terminating NULL byte. + * Returns 0 if only ignorable code points are present. + * Returns -1 if the input is not valid UTF-8. + */ +extern ssize_t utf8len(utf8data_t, const char *); +extern ssize_t utf8nlen(utf8data_t, const char *, size_t); + +/* + * Cursor structure used by the normalizer. + */ +struct utf8cursor { + utf8data_t data; + const char *s; + const char *p; + const char *ss; + const char *sp; + unsigned int len; + unsigned int slen; + short int ccc; + short int nccc; +}; + +/* + * Initialize a utf8cursor to normalize a string. + * Returns 0 on success. + * Returns -1 on failure. + */ +extern int utf8cursor(struct utf8cursor *, utf8data_t, const char *); +extern int utf8ncursor(struct utf8cursor *, utf8data_t, const char *, size_t); + +/* + * Get the next byte in the normalization. + * Returns a value > 0 && < 256 on success. + * Returns 0 when the end of the normalization is reached. + * Returns -1 if the string being normalized is not valid UTF-8. + */ +extern int utf8byte(struct utf8cursor *); + +#endif /* UTF8NORM_H */ diff --git a/libxfs/Makefile b/libxfs/Makefile index ae15a5d..a1e85ef 100644 --- a/libxfs/Makefile +++ b/libxfs/Makefile @@ -14,6 +14,7 @@ HFILES = xfs.h init.h xfs_dir2_priv.h crc32defs.h crc32table.h CFILES = cache.c \ crc32.c \ init.c kmem.c logitem.c radix-tree.c rdwr.c trans.c util.c \ + utf8norm.c \ xfs_alloc.c \ xfs_alloc_btree.c \ xfs_attr.c \ diff --git a/libxfs/utf8norm.c b/libxfs/utf8norm.c new file mode 100644 index 0000000..6232d1a --- /dev/null +++ b/libxfs/utf8norm.c @@ -0,0 +1,628 @@ +/* + * Copyright (c) 2014 SGI. + * 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 "xfs.h" +#include "xfs_types.h" +#include + +struct utf8data { + unsigned int maxage; + unsigned int offset; +}; + +#define __INCLUDED_FROM_UTF8NORM_C__ +#include +#undef __INCLUDED_FROM_UTF8NORM_C__ + +/* + * UTF-8 valid ranges. + * + * The UTF-8 encoding spreads the bits of a 32bit word over several + * bytes. This table gives the ranges that can be held and how they'd + * be represented. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000000 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000000 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * There is an additional requirement on UTF-8, in that only the + * shortest representation of a 32bit value is to be used. A decoder + * must not decode sequences that do not satisfy this requirement. + * Thus the allowed ranges have a lower bound. + * + * 0x00000000 0x0000007F: 0xxxxxxx + * 0x00000080 0x000007FF: 110xxxxx 10xxxxxx + * 0x00000800 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx + * 0x00010000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x00200000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * 0x04000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx + * + * Actual unicode characters are limited to the range 0x0 - 0x10FFFF, + * 17 planes of 65536 values. This limits the sequences actually seen + * even more, to just the following. + * + * 0 - 0x7F: 0 - 0x7F + * 0x80 - 0x7FF: 0xC2 0x80 - 0xDF 0xBF + * 0x800 - 0xFFFF: 0xE0 0xA0 0x80 - 0xEF 0xBF 0xBF + * 0x10000 - 0x10FFFF: 0xF0 0x90 0x80 0x80 - 0xF4 0x8F 0xBF 0xBF + * + * Within those ranges the surrogates 0xD800 - 0xDFFF are not allowed. + * + * Note that the longest sequence seen with valid usage is 4 bytes, + * the same a single UTF-32 character. This makes the UTF-8 + * representation of Unicode strictly smaller than UTF-32. + * + * The shortest sequence requirement was introduced by: + * Corrigendum #1: UTF-8 Shortest Form + * It can be found here: + * http://www.unicode.org/versions/corrigendum1.html + * + */ + +/* + * Return the number of bytes used by the current UTF-8 sequence. + * Assumes the input points to the first byte of a valid UTF-8 + * sequence. + */ +static inline int +utf8clen(const char *s) +{ + unsigned char c = *s; + return 1 + (c >= 0xC0) + (c >= 0xE0) + (c >= 0xF0); +} + +/* + * utf8trie_t + * + * A compact binary tree, used to decode UTF-8 characters. + * + * Internal nodes are one byte for the node itself, and up to three + * bytes for an offset into the tree. The first byte contains the + * following information: + * NEXTBYTE - flag - advance to next byte if set + * BITNUM - 3 bit field - the bit number to tested + * OFFLEN - 2 bit field - number of bytes in the offset + * if offlen == 0 (non-branching node) + * RIGHTPATH - 1 bit field - set if the following node is for the + * right-hand path (tested bit is set) + * TRIENODE - 1 bit field - set if the following node is an internal + * node, otherwise it is a leaf node + * if offlen != 0 (branching node) + * LEFTNODE - 1 bit field - set if the left-hand node is internal + * RIGHTNODE - 1 bit field - set if the right-hand node is internal + * + * Due to the way utf8 works, there cannot be branching nodes with + * NEXTBYTE set, and moreover those nodes always have a righthand + * descendant. + */ +typedef const unsigned char utf8trie_t; +#define BITNUM 0x07 +#define NEXTBYTE 0x08 +#define OFFLEN 0x30 +#define OFFLEN_SHIFT 4 +#define RIGHTPATH 0x40 +#define TRIENODE 0x80 +#define RIGHTNODE 0x40 +#define LEFTNODE 0x80 + +/* + * utf8leaf_t + * + * The leaves of the trie are embedded in the trie, and so the same + * underlying datatype: unsigned char. + * + * leaf[0]: The unicode version, stored as a generation number that is + * an index into utf8agetab[]. With this we can filter code + * points based on the unicode version in which they were + * defined. The CCC of a non-defined code point is 0. + * leaf[1]: Canonical Combining Class. During normalization, we need + * to do a stable sort into ascending order of all characters + * with a non-zero CCC that occur between two characters with + * a CCC of 0, or at the begin or end of a string. + * The unicode standard guarantees that all CCC values are + * between 0 and 254 inclusive, which leaves 255 available as + * a special value. + * Code points with CCC 0 are known as stoppers. + * leaf[2]: Decomposition. If leaf[1] == 255, then leaf[2] is the + * start of a NUL-terminated string that is the decomposition + * of the character. + * The CCC of a decomposable character is the same as the CCC + * of the first character of its decomposition. + * Some characters decompose as the empty string: these are + * characters with the Default_Ignorable_Code_Point property. + * These do affect normalization, as they all have CCC 0. + * + * The decompositions in the trie have been fully expanded. + * + * Casefolding, if applicable, is also done using decompositions. + * + * The trie is constructed in such a way that leaves exist for all + * UTF-8 sequences that match the criteria from the "UTF-8 valid + * ranges" comment above, and only for those sequences. Therefore a + * lookup in the trie can be used to validate the UTF-8 input. + */ +typedef const unsigned char utf8leaf_t; + +#define LEAF_GEN(LEAF) ((LEAF)[0]) +#define LEAF_CCC(LEAF) ((LEAF)[1]) +#define LEAF_STR(LEAF) ((const char*)((LEAF) + 2)) + +#define MINCCC (0) +#define MAXCCC (254) +#define STOPPER (0) +#define DECOMPOSE (255) + +/* + * Use trie to scan s, touching at most len bytes. + * Returns the leaf if one exists, NULL otherwise. + * + * A non-NULL return guarantees that the UTF-8 sequence starting at s + * is well-formed and corresponds to a known unicode code point. The + * shorthand for this will be "is valid UTF-8 unicode". + */ +static utf8leaf_t * +utf8nlookup(utf8data_t data, const char *s, size_t len) +{ + utf8trie_t *trie = utf8data + data->offset; + int offlen; + int offset; + int mask; + int node; + + if (!data) + return NULL; + if (len == 0) + return NULL; + node = 1; + while (node) { + offlen = (*trie & OFFLEN) >> OFFLEN_SHIFT; + if (*trie & NEXTBYTE) { + if (--len == 0) + return NULL; + s++; + } + mask = 1 << (*trie & BITNUM); + if (*s & mask) { + /* Right leg */ + if (offlen) { + /* Right node at offset of trie */ + node = (*trie & RIGHTNODE); + offset = trie[offlen]; + while (--offlen) { + offset <<= 8; + offset |= trie[offlen]; + } + trie += offset; + } else if (*trie & RIGHTPATH) { + /* Right node after this node */ + node = (*trie & TRIENODE); + trie++; + } else { + /* No right node. */ + node = 0; + trie = NULL; + } + } else { + /* Left leg */ + if (offlen) { + /* Left node after this node. */ + node = (*trie & LEFTNODE); + trie += offlen + 1; + } else if (*trie & RIGHTPATH) { + /* No left node. */ + node = 0; + trie = NULL; + } else { + /* Left node after this node */ + node = (*trie & TRIENODE); + trie++; + } + } + } + return trie; +} + +/* + * Use trie to scan s. + * Returns the leaf if one exists, NULL otherwise. + * + * Forwards to utf8nlookup(). + */ +static utf8leaf_t * +utf8lookup(utf8data_t data, const char *s) +{ + return utf8nlookup(data, s, (size_t)-1); +} + +/* + * Maximum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if only non-assigned code points are used. + */ +int +utf8agemax(utf8data_t data, const char *s) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!data) + return -1; + while (*s) { + if (!(leaf = utf8lookup(data, s))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age > age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} + +/* + * Minimum age of any character in s. + * Return -1 if s is not valid UTF-8 unicode. + * Return 0 if non-assigned code points are used. + */ +int +utf8agemin(utf8data_t data, const char *s) +{ + utf8leaf_t *leaf; + int age = data->maxage; + int leaf_age; + + if (!data) + return -1; + while (*s) { + if (!(leaf = utf8lookup(data, s))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age < age) + age = leaf_age; + s += utf8clen(s); + } + return age; +} + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemax(utf8data_t data, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int age = 0; + int leaf_age; + + if (!data) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(data, s, len))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age > age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} + +/* + * Maximum age of any character in s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +int +utf8nagemin(utf8data_t data, const char *s, size_t len) +{ + utf8leaf_t *leaf; + int leaf_age; + int age = data->maxage; + + if (!data) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(data, s, len))) + return -1; + leaf_age = utf8agetab[LEAF_GEN(leaf)]; + if (leaf_age <= data->maxage && leaf_age < age) + age = leaf_age; + len -= utf8clen(s); + s += utf8clen(s); + } + return age; +} + +/* + * Length of the normalization of s. + * Return -1 if s is not valid UTF-8 unicode. + * + * A string of Default_Ignorable_Code_Point has length 0. + */ +ssize_t +utf8len(utf8data_t data, const char *s) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!data) + return -1; + while (*s) { + if (!(leaf = utf8lookup(data, s))) + return -1; + if (utf8agetab[LEAF_GEN(leaf)] > data->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + s += utf8clen(s); + } + return ret; +} + +/* + * Length of the normalization of s, touch at most len bytes. + * Return -1 if s is not valid UTF-8 unicode. + */ +ssize_t +utf8nlen(utf8data_t data, const char *s, size_t len) +{ + utf8leaf_t *leaf; + size_t ret = 0; + + if (!data) + return -1; + while (len && *s) { + if (!(leaf = utf8nlookup(data, s, len))) + return -1; + if (utf8agetab[LEAF_GEN(leaf)] > data->maxage) + ret += utf8clen(s); + else if (LEAF_CCC(leaf) == DECOMPOSE) + ret += strlen(LEAF_STR(leaf)); + else + ret += utf8clen(s); + len -= utf8clen(s); + s += utf8clen(s); + } + return ret; +} + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * u8c : pointer to cursor. + * data : utf8data_t to use for normalization. + * s : string. + * len : length of s. + * + * Returns -1 on error, 0 on success. + */ +int +utf8ncursor( + struct utf8cursor *u8c, + utf8data_t data, + const char *s, + size_t len) +{ + if (!data) + return -1; + if (!s) + return -1; + u8c->data = data; + u8c->s = s; + u8c->p = NULL; + u8c->ss = NULL; + u8c->sp = NULL; + u8c->len = len; + u8c->slen = 0; + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + /* Check we didn't clobber the maximum length. */ + if (u8c->len != len) + return -1; + /* The first byte of s may not be an utf8 continuation. */ + if (len > 0 && (*s & 0xC0) == 0x80) + return -1; + return 0; +} + +/* + * Set up an utf8cursor for use by utf8byte(). + * + * u8c : pointer to cursor. + * data : utf8data_t to use for normalization. + * s : NUL-terminated string. + * + * Returns -1 on error, 0 on success. + */ +int +utf8cursor( + struct utf8cursor *u8c, + utf8data_t data, + const char *s) +{ + return utf8ncursor(u8c, data, s, (unsigned int)-1); +} + +/* + * Get one byte from the normalized form of the string described by u8c. + * + * Returns the byte cast to an unsigned char on succes, and -1 on failure. + * + * The cursor keeps track of the location in the string in u8c->s. + * When a character is decomposed, the current location is stored in + * u8c->p, and u8c->s is set to the start of the decomposition. Note + * that bytes from a decomposition do not count against u8c->len. + * + * Characters are emitted if they match the current CCC in u8c->ccc. + * Hitting end-of-string while u8c->ccc == STOPPER means we're done, + * and the function returns 0 in that case. + * + * Sorting by CCC is done by repeatedly scanning the string. The + * values of u8c->s and u8c->p are stored in u8c->ss and u8c->sp at + * the start of the scan. The first pass finds the lowest CCC to be + * emitted and stores it in u8c->nccc, the second pass emits the + * characters with this CCC and finds the next lowest CCC. This limits + * the number of passes to 1 + the number of different CCCs in the + * sequence being scanned. + * + * Therefore: + * u8c->p != NULL -> a decomposition is being scanned. + * u8c->ss != NULL -> this is a repeating scan. + * u8c->ccc == -1 -> this is the first scan of a repeating scan. + */ +int +utf8byte(struct utf8cursor *u8c) +{ + utf8leaf_t *leaf; + int ccc; + + for (;;) { + /* Check for the end of a decomposed character. */ + if (u8c->p && *u8c->s == '\0') { + u8c->s = u8c->p; + u8c->p = NULL; + } + + /* Check for end-of-string. */ + if (!u8c->p && (u8c->len == 0 || *u8c->s == '\0')) { + /* There is no next byte. */ + if (u8c->ccc == STOPPER) + return 0; + /* End-of-string during a scan counts as a stopper. */ + ccc = STOPPER; + goto ccc_mismatch; + } else if ((*u8c->s & 0xC0) == 0x80) { + /* This is a continuation of the current character. */ + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Look up the data for the current character. */ + if (u8c->p) + leaf = utf8lookup(u8c->data, u8c->s); + else + leaf = utf8nlookup(u8c->data, u8c->s, u8c->len); + + /* No leaf found implies that the input is a binary blob. */ + if (!leaf) + return -1; + + /* Characters that are too new have CCC 0. */ + if (utf8agetab[LEAF_GEN(leaf)] > u8c->data->maxage) { + ccc = STOPPER; + } else if ((ccc = LEAF_CCC(leaf)) == DECOMPOSE) { + u8c->len -= utf8clen(u8c->s); + u8c->p = u8c->s + utf8clen(u8c->s); + u8c->s = LEAF_STR(leaf); + /* Empty decomposition implies CCC 0. */ + if (*u8c->s == '\0') { + if (u8c->ccc == STOPPER) + continue; + ccc = STOPPER; + goto ccc_mismatch; + } + leaf = utf8lookup(u8c->data, u8c->s); + ccc = LEAF_CCC(leaf); + } + + /* + * If this is not a stopper, then see if it updates + * the next canonical class to be emitted. + */ + if (ccc != STOPPER && u8c->ccc < ccc && ccc < u8c->nccc) + u8c->nccc = ccc; + + /* + * Return the current byte if this is the current + * combining class. + */ + if (ccc == u8c->ccc) { + if (!u8c->p) + u8c->len--; + return (unsigned char)*u8c->s++; + } + + /* Current combining class mismatch. */ + ccc_mismatch: + if (u8c->nccc == STOPPER) { + /* + * Scan forward for the first canonical class + * to be emitted. Save the position from + * which to restart. + */ + u8c->ccc = MINCCC - 1; + u8c->nccc = ccc; + u8c->sp = u8c->p; + u8c->ss = u8c->s; + u8c->slen = u8c->len; + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (ccc != STOPPER) { + /* Not a stopper, and not the ccc we're emitting. */ + if (!u8c->p) + u8c->len -= utf8clen(u8c->s); + u8c->s += utf8clen(u8c->s); + } else if (u8c->nccc != MAXCCC + 1) { + /* At a stopper, restart for next ccc. */ + u8c->ccc = u8c->nccc; + u8c->nccc = MAXCCC + 1; + u8c->s = u8c->ss; + u8c->p = u8c->sp; + u8c->len = u8c->slen; + } else { + /* All done, proceed from here. */ + u8c->ccc = STOPPER; + u8c->nccc = STOPPER; + u8c->sp = NULL; + u8c->ss = NULL; + u8c->slen = 0; + } + } +} + +const struct utf8data * +utf8nfkdi(unsigned int maxage) +{ + int i = sizeof(utf8nfkdidata)/sizeof(utf8nfkdidata[0]) - 1; + + while (maxage < utf8nfkdidata[i].maxage) + i--; + if (maxage > utf8nfkdidata[i].maxage) + return NULL; + return &utf8nfkdidata[i]; +} + +const struct utf8data * +utf8nfkdicf(unsigned int maxage) +{ + int i = sizeof(utf8nfkdicfdata)/sizeof(utf8nfkdicfdata[0]) - 1; + + while (maxage < utf8nfkdicfdata[i].maxage) + i--; + if (maxage > utf8nfkdicfdata[i].maxage) + return NULL; + return &utf8nfkdicfdata[i]; +} -- 1.7.12.4 From bfoster@redhat.com Fri Sep 19 13:13:12 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B07B47F3F for ; Fri, 19 Sep 2014 13:13:12 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 73E148F8052 for ; Fri, 19 Sep 2014 11:13:09 -0700 (PDT) X-ASG-Debug-ID: 1411150387-04bdf003a147e40001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id vjXfCFW09CWdMSq4 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 19 Sep 2014 11:13:08 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8JID7BB003066 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 19 Sep 2014 14:13:07 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8JID6WV003975; Fri, 19 Sep 2014 14:13:07 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id A2CC6120064; Fri, 19 Sep 2014 14:13:05 -0400 (EDT) From: Brian Foster To: fstests@vger.kernel.org Cc: xfs@oss.sgi.com Subject: [PATCH] xfs/062: add xfs unwritten extent data corruption reproducer Date: Fri, 19 Sep 2014 14:13:05 -0400 X-ASG-Orig-Subj: [PATCH] xfs/062: add xfs unwritten extent data corruption reproducer Message-Id: <1411150385-32121-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411150388 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 XFS had a data corruption problem where writeback of pages to unwritten extents would fail to run unwritten extent conversion at I/O completion. This causes subsequent reads of written, but unconverted regions to return zeroes. This occurs on sub-page block size filesystems when writeback contends for the inode lock (e.g., with a file writer). Add a test that creates the conditions to reproduce the data corruption and detect it by looking for unwritten extents after all said extents have been overwritten. Signed-off-by: Brian Foster --- Hi all, Here's a test for the data corruption issue I sent a fix for yesterday: http://oss.sgi.com/archives/xfs/2014-09/msg00259.html It took a little time to improve the effectiveness of the test, but I've been able to run it in current form for 90+ iterations without a false negative (e.g., test passes when it shouldn't) on my setup. It runs in ~30s when there is no failure. Brian tests/xfs/062 | 114 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/062.out | 5 +++ tests/xfs/group | 1 + 3 files changed, 120 insertions(+) create mode 100755 tests/xfs/062 create mode 100644 tests/xfs/062.out diff --git a/tests/xfs/062 b/tests/xfs/062 new file mode 100755 index 0000000..61f8cf4 --- /dev/null +++ b/tests/xfs/062 @@ -0,0 +1,114 @@ +#! /bin/bash +# FS QA Test No. 062 +# +# This test implements a data corruption scenario on XFS filesystems with +# sub-page sized blocks and unwritten extents. Inode lock contention during +# writeback of pages to unwritten extents leads to failure to convert those +# extents on I/O completion. This causes data corruption as unwritten extents +# are always read back as zeroes. +# +#----------------------------------------------------------------------- +# Copyright (c) 2014 Red Hat, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + kill -9 $syncpid > /dev/null 2>&1 +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/punch + +# real QA test starts here + +_syncloop() +{ + while [ true ] + do + sync + done +} + +# Modify as appropriate. +_supported_fs xfs +_supported_os Linux +_require_scratch +_require_xfs_io_command "falloc" + +_scratch_mkfs >/dev/null 2>&1 +_scratch_mount + +# run background sync thread +_syncloop & +syncpid=$! + +for iters in $(seq 1 100) +do + rm -f $SCRATCH_MNT/file + + # create a delalloc block in each page of the first 64k of the file + for pgoff in $(seq 0 0x1000 0xf000) + do + offset=$((pgoff + 0xc00)) + $XFS_IO_PROG -fc "pwrite $offset 0x1" $SCRATCH_MNT/file \ + > /dev/null 2>&1 + done + + # preallocate the first 64k and overwite, writing past 64k to contend + # with writeback + $XFS_IO_PROG \ + -c "falloc 0 0x10000" \ + -c "pwrite 0 0x100000" \ + -c "fsync" \ + $SCRATCH_MNT/file > /dev/null 2>&1 + + # Check for unwritten extents. We should have none since we wrote over + # the entire preallocated region and ran fsync. + xfs_bmap -v $SCRATCH_MNT/file | _filter_bmap | grep unwritten \ + > /dev/null 2>&1 + if [ $? == 0 ] + then + xfs_bmap -v $SCRATCH_MNT/file + break + fi +done + +echo $iters iterations + +kill $syncpid +wait + +# clear page cache and dump the file +_scratch_unmount +_scratch_mount +hexdump $SCRATCH_MNT/file + +_scratch_unmount +_check_scratch_fs + +status=0 +exit diff --git a/tests/xfs/062.out b/tests/xfs/062.out new file mode 100644 index 0000000..420f2e4 --- /dev/null +++ b/tests/xfs/062.out @@ -0,0 +1,5 @@ +QA output created by 062 +100 iterations +0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd +* +0100000 diff --git a/tests/xfs/group b/tests/xfs/group index 09bce15..685cbe7 100644 --- a/tests/xfs/group +++ b/tests/xfs/group @@ -57,6 +57,7 @@ 059 dump ioctl auto quick 060 dump ioctl auto quick 061 dump ioctl auto quick +062 auto quick 063 dump attr auto quick 064 dump auto 065 dump auto -- 1.8.3.1 From continentalnvestment@gmail.com Fri Sep 19 15:43:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.0 required=5.0 tests=FREEMAIL_FROM,FREEMAIL_REPLYTO, HTML_MESSAGE,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B5A487F3F for ; 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If you see this text it means that your E-mail software does not support MIME-formatted messages. ------=_NextPart_000_3B6B_01CFD48D.75B076D0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Dear Esteemed Clients, Many of you have already benefited from the credit enhancement and proof of funds product services we have been providing since 2006. Our personal and historic relationships with each of these institutions will ensure timely, affordable, and professional service. Our September 2014 List of available Bank Facilities are: SERVICES AVAILABLE . Bank to Bank Phone/Fax Verification . Hard Copy Courier and Electronic Documentation . Account Statement . Proof of Funds Letter . Ready Willing Able Letter . Bank Comfort Letter . SWIFT MT199/799/999/103 messaging (additional charges may apply) . Blocked Funds/Reserved Funds MT199/799/999/760 (additional charges may apply) FINANCIAL INSTRUMENT MONETIZATION Funding through bank instruments is ideal for financing small and large project. It is a viable and powerful alternative to bank funding and has become a valuable tool when banks and conventional funding fall short. Rather than locating an instrument and then looking for a lender who will fund it, the entire process can be handled at once. We can provide the bank instrument and have it monetized through our sources. You can have the funding for your project in the form of a non-recourse loan in 14 days. Please if you are interested in the offer or have a client who may be interested, let me know so that we can discuss the business further. Best Regards, Larsen Roland ------=_NextPart_000_3B6B_01CFD48D.75B076D0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Dear Esteemed Clients,

 

Many of you have already benefited from the cre= dit enhancement and proof of funds product services we have been providing sinc= e 2006.

 

Our personal and historic relationships with ea= ch of these institutions will ensure timely, affordable, and professional serv= ice.

         &= nbsp;  

Our September 2014 List of available Bank Facilities are:

 

SERVICES AVAILABLE

·      =    Bank to Ban= k Phone/Fax Verification<= span lang=3DEN-MY style=3D'font-size:12.0pt;font-family:"Helvetica","sans-serif"= ; mso-fareast-font-family:"Times New Roman";color:black;mso-ansi-language:EN-= MY; mso-fareast-language:EN-MY'>

·      =    Hard Copy Courier and Electronic Documentation

·      =    Account Statement

·      =    Proof of Fu= nds Letter

·      =    Ready Willi= ng Able Letter

·      =    Bank Comfor= t Letter

·      =    SWIFT MT199/799/999/103 messaging (additional charges may apply)=

·      =    Blocked Funds/Reserved Funds MT199/799/999/760 (additional charges may apply)=

FINANCIAL INSTRUMENT MONETIZATION  

Funding throu= gh bank instruments is ideal for financing small and large project. It is a vi= able and powerful alternative to bank funding and has become a valuable tool whe= n banks and conventional funding fall short.

Rather than locating an instrument and then looking for a lender who will fund it, the entire process can be handled at once.

We can provid= e the bank instrument and have it monetized through our sources. You can have= the funding for your project in the form of a non-recourse loan in 14 days.

Please if you= are interested in the offer or have a client who may be interested, let me know= so that we can discuss the business further.

Best Regards,=

Larsen Roland=

 

3D"" ------=_NextPart_000_3B6B_01CFD48D.75B076D0-- From sandeen@sandeen.net Fri Sep 19 15:44:35 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7C9A97F3F for ; Fri, 19 Sep 2014 15:44:35 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 681D88F8040 for ; Fri, 19 Sep 2014 13:44:34 -0700 (PDT) X-ASG-Debug-ID: 1411159473-04cbb073014c630001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id IdTu9y7QS4jGL2di for ; Fri, 19 Sep 2014 13:44:33 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 37A06654E2BE for ; Fri, 19 Sep 2014 15:44:33 -0500 (CDT) Message-ID: <541C95B1.9020807@sandeen.net> Date: Fri, 19 Sep 2014 15:44:33 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss Subject: [PATCH] libxfs: use structure initializers for cache_operations Content-Type: text/plain; charset=utf-8 X-ASG-Orig-Subj: [PATCH] libxfs: use structure initializers for cache_operations Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1411159473 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9662 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- This makes it a lot easier for cscope etc. Surely all modern compilers can cope? Signed-off-by: Eric Sandeen --- diff --git a/libxfs/rdwr.c b/libxfs/rdwr.c index 9ee89d3..80de6fa 100644 --- a/libxfs/rdwr.c +++ b/libxfs/rdwr.c @@ -1088,12 +1088,12 @@ libxfs_bcache_overflowed(void) } struct cache_operations libxfs_bcache_operations = { - /* .hash */ libxfs_bhash, - /* .alloc */ libxfs_balloc, - /* .flush */ libxfs_bflush, - /* .relse */ libxfs_brelse, - /* .compare */ libxfs_bcompare, - /* .bulkrelse */libxfs_bulkrelse + .hash = libxfs_bhash, + .alloc = libxfs_balloc, + .flush = libxfs_bflush, + .relse = libxfs_brelse, + .compare = libxfs_bcompare, + .bulkrelse = libxfs_bulkrelse }; From alessio.dimaria@gmail.com Fri Sep 19 15:58:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE, T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8A0577F3F for ; Fri, 19 Sep 2014 15:58:52 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 58F988F8064 for ; Fri, 19 Sep 2014 13:58:52 -0700 (PDT) X-ASG-Debug-ID: 1411160329-04bdf003a24e020001-NocioJ Received: from mail-vc0-f178.google.com (mail-vc0-f178.google.com [209.85.220.178]) by cuda.sgi.com with ESMTP id pbgMnjlByCiSDBCx (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Fri, 19 Sep 2014 13:58:50 -0700 (PDT) X-Barracuda-Envelope-From: alessio.dimaria@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.220.178 X-Barracuda-IPDD: Level1 [gmail.com/209.85.220.178] Received: by mail-vc0-f178.google.com with SMTP id lf12so84858vcb.23 for ; Fri, 19 Sep 2014 13:58:49 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.220.178] X-Barracuda-IPDD: Level1 [gmail.com/209.85.220.178] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=VdZBZe86br1Iu12wpdOSnNuFWzMRZL/jiUbrghvrOU0=; b=SrrMGMpmLFj0CI38ciILeEYbLH+cg5wxULYB8kGY5X++zB9TWfVa/D7OsoIb2J2E0f 2X7Q0lv7rgRfq1cqOy8URGDlxY/YCG9E0WbqfxL0lmD80pwG8Ned8Sa+/5qo08+Z3fzp yzJpFLhb8RtUcEiczDg/OfcN9g6P0EQV21R520ygQrBbJGApWU6lxP+0X6BaOVsUi/bc HxRgOibWW+VwkEeUfpCqgBAUlVgzfnlDZqIgSKLscHIBn8pvfTUT59sXXg/oy0Wq0l6B 8wVKXdRTyN+fXq5wgAoHnjFrzsIS4zZYq7h8wfKIspb1g6/e5kV2p5bAFuMpyhIjK2Pc zqYA== MIME-Version: 1.0 X-Received: by 10.221.62.194 with SMTP id xb2mr835406vcb.40.1411160329365; Fri, 19 Sep 2014 13:58:49 -0700 (PDT) Received: by 10.221.56.138 with HTTP; Fri, 19 Sep 2014 13:58:49 -0700 (PDT) Date: Fri, 19 Sep 2014 22:58:49 +0200 Message-ID: Subject: Repair XFS from 1/3 of the table From: Alessio Di Maria X-ASG-Orig-Subj: Repair XFS from 1/3 of the table To: xfs@oss.sgi.com Content-Type: multipart/alternative; boundary=001a1136211e272da90503715ef9 X-Barracuda-Connect: mail-vc0-f178.google.com[209.85.220.178] X-Barracuda-Start-Time: 1411160330 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9664 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message --001a1136211e272da90503715ef9 Content-Type: text/plain; charset=UTF-8 Hi, for fist i'm sorry for my bad English.. so, I'm trying to do a recovery from my NAS, After it stopped, 3 disk of 4 was reinitialized so, raid partition was deleted on disk 1 2 and 3, and first about 5m was zero filled.. I'm actually work on a copy of that... in my luck, the XFS superblock was on 4th disk.. I was able to rebuild RAID5 with the original configuration and now i can read RAW files up to few kb... i was able to read a 15Mb zip file, and some big jpeg, so i can say that RAID it's working fine At sector 384 of the raid volume start the xfs superblock, i made a loopback at this offset, mounting it.. but obviusly it said that was not clean. making xfs_repair i get anything, but with xfs_repair -L i had infinite list of lost inode, and than i was able to mount the partition, but with any file, only the lost + found directory with few but complete files... On the NAS there were Big Files of ISCSI, in the lost + found i find one of this, big 100Gb.. now i don't know how i can recovery the rest.. Is it possible to find lost inode? i tryied with many programs to get back the original Filesystem but anything up the Lost + Found directory after the repair... I know that XFS is based on sparse file, and so i can't find my file and hope to copy it contigusly (about 5Gb) cose the fs reidirect zero filled zone... in addiction i can't do a RAW recovery cose in the deep of 2.7Tb i find MFT entryies and system files inner ISCSI units... So what chache? Wha can i do myself? I know that a DIY approach it this case is hard Many Thaks in advance of any reponse! --001a1136211e272da90503715ef9 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi, for fist i'm sorry for my bad English..
so,=C2= =A0
I'm trying to do a recovery from my NAS,=C2=A0
= After it stopped, 3 disk of 4 was reinitialized so, raid partition was dele= ted on disk 1 2 and 3, and first about 5m was zero filled..=C2=A0
I'm actually work on a copy of that...
in my luck, the XFS s= uperblock was on 4th disk..=C2=A0
I was able to rebuild RAID5 wit= h the original configuration and now i can read RAW files up to few kb... i= was able to read a 15Mb zip file, and some big jpeg, so i can say that RAI= D it's working fine

At sector 384 of the raid = volume start the xfs superblock, i made a loopback at this offset,
mounting it.. but obviusly it said that was not clean.=C2=A0
ma= king xfs_repair i get anything, but with xfs_repair -L i had infinite list = of lost inode, and than i was able to mount the partition,=C2=A0
= but with any file, only the lost + found directory with few but complete fi= les...

On the NAS there were Big Files of ISCSI, i= n the lost + found i find one of this, big 100Gb.. now i don't know how= i can recovery the rest..

Is it possible to find = lost inode?

i tryied with many programs to get bac= k the original Filesystem but anything up the Lost + Found directory after = the repair...
I know that XFS is based on sparse file, and so i c= an't find my file and hope to copy it contigusly (about 5Gb) cose the f= s reidirect zero filled zone... in addiction i can't do a RAW recovery = cose in the deep of 2.7Tb i find MFT entryies and system files inner ISCSI = units...=C2=A0
So what chache?=C2=A0
Wha can i = do myself?

I know that a DIY approach it this case= is hard
Many Thaks in advance of any reponse!
--001a1136211e272da90503715ef9-- From daldrich1@mail.csuchico.edu Fri Sep 19 22:13:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 9E7AC7F3F for ; Fri, 19 Sep 2014 22:13:40 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 3C92AAC003 for ; Fri, 19 Sep 2014 20:13:37 -0700 (PDT) X-ASG-Debug-ID: 1411182815-04cb6c50e755650001-NocioJ Received: from mail-yh0-f44.google.com (mail-yh0-f44.google.com [209.85.213.44]) by cuda.sgi.com with ESMTP id NrXn8Faj3ggEokxT (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Fri, 19 Sep 2014 20:13:36 -0700 (PDT) X-Barracuda-Envelope-From: daldrich1@mail.csuchico.edu X-Barracuda-Apparent-Source-IP: 209.85.213.44 Received: by mail-yh0-f44.google.com with SMTP id v1so999019yhn.17 for ; Fri, 19 Sep 2014 20:13:35 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:reply-to:date:message-id:subject :from:to:content-type; bh=8eyY6jZUKKrrfAtEJlUhFZnLRmNAcpMiMBi0J6gNDXg=; b=ThIupl90WNYMdfxbYlt9egtNdZ4VD6DOWIhZyL6+5nsQXwXSGhtBaIzS6y/GpiiuNQ abdemi5SlS3YVNgAKMNUWk1lazyVBYWz1p05lWUrBtYaPjWqrvAr2TaJUPQNRyZEOjkZ Utl3v0dzaPs9gWL3Fl2gw+VmGZr5tqzot2a5sUkFG8Stumk8BnxvUI1FRqLTXjRqUnpe luSv6DleCwY7QGtl+2j0sdGayORDZPo8XVFSEBb+BgrMUHxhqkYrc9EI5Bhm7kOD5JNM Z7MVb1tOYsDDo/hNoenmnVvEJ18UDOmfgLcN8VlJw+I9t7h4uX/nXtbL1tTACl+8eF2z 5PWw== X-Gm-Message-State: ALoCoQnV37QpnNakPMHvUEe9YNm/yRaFSKIin8sVFAFF9hrWzxFUu5DphNNauaEQ8W71Kf5JW6Mc MIME-Version: 1.0 X-Received: by 10.236.65.193 with SMTP id f41mr6030743yhd.24.1411182815035; Fri, 19 Sep 2014 20:13:35 -0700 (PDT) Received: by 10.170.191.74 with HTTP; Fri, 19 Sep 2014 20:13:34 -0700 (PDT) Reply-To: jessicahealings@outlook.com Date: Sat, 20 Sep 2014 05:13:34 +0200 Message-ID: Subject: From: Jessica Lombard X-ASG-Orig-Subj: To: undisclosed-recipients:; Content-Type: text/plain; charset=ISO-8859-1 X-Barracuda-Connect: mail-yh0-f44.google.com[209.85.213.44] X-Barracuda-Start-Time: 1411182815 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 1.79 X-Barracuda-Spam-Status: No, SCORE=1.79 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA620a, MISSING_SUBJECT, MISSING_SUBJECT_2 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9673 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 MISSING_SUBJECT Missing Subject: header 0.50 BSF_SC0_SA620a Custom Rule SA620a 1.28 MISSING_SUBJECT_2 Missing Subject: header -- To whom it may concern, My name is Jessica Lombard, I am based in South Africa, I am a prophetess by nature, and last night, while I was asleep, I had a vision, and in the vision, an old woman, gave me this email address to contact. I'm not sure if this email works, but if this message gets to you, please take the content of this message to be very serious. The old woman I saw in my dream told me that you will win a lottery, and it'll be a big one... She had also asked me to tell you to play a lotto, she also provided me with some winning lucky numbers to use in playing. Please contact me using the same email address so that I can arrange the numbers and pray on it before giving you to go and play and win as the ancestors has declared. Note: I don't do evils with my gift. Jessica Lombard. From stan@hardwarefreak.com Sat Sep 20 14:47:18 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 114527F3F for ; Sat, 20 Sep 2014 14:47:18 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 84549AC001 for ; Sat, 20 Sep 2014 12:47:14 -0700 (PDT) X-ASG-Debug-ID: 1411242429-04cbb073026e410001-NocioJ Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id sO74zlAAK8NB8QKA for ; Sat, 20 Sep 2014 12:47:10 -0700 (PDT) X-Barracuda-Envelope-From: stan@hardwarefreak.com X-Barracuda-Apparent-Source-IP: 65.41.216.221 X-Barracuda-User-Whitelist: xfs@oss.sgi.com Received: from [192.168.100.53] (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by greer.hardwarefreak.com (Postfix) with ESMTPA id 624546C127; Sat, 20 Sep 2014 14:47:09 -0500 (CDT) Message-ID: <541DD9C8.3090403@hardwarefreak.com> Date: Sat, 20 Sep 2014 14:47:20 -0500 From: stan hoeppner User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Icedove/24.7.0 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com Subject: Re: storage, libaio, or XFS problem? 3.4.26 References: <20140828230817.GU20518@dastard> <2d2ce7bb38c00a7d35f4a324f6a36cbb@localhost> <20140829235538.GF20518@dastard> <20140831235749.GH20518@dastard> <5403E9B9.7040608@hardwarefreak.com> <20140901234529.GI20518@dastard> <5405FB19.2020208@hardwarefreak.com> <20140902221915.GK20518@dastard> <540BEBB7.7020306@hardwarefreak.com> <20140907233910.GA30012@dastard> <540DC78C.4010607@hardwarefreak.com> X-ASG-Orig-Subj: Re: storage, libaio, or XFS problem? 3.4.26 In-Reply-To: <540DC78C.4010607@hardwarefreak.com> 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: 1411242430 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 09/08/2014 10:13 AM, stan hoeppner wrote: > On 09/07/2014 06:39 PM, Dave Chinner wrote: >> On Sun, Sep 07, 2014 at 12:23:03AM -0500, stan hoeppner wrote: >>> I have some more information regarding the AIO issue. I fired up the >>> test harness and it ran for 30 hours at 706 MB/s avg write rate, 303 >>> MB/s per LUN, nearly flawlessly, less than 0.01% buffer loss, and avg IO >>> times were less than 0.5 seconds. Then the app crashed and I found the >>> following in dmesg. I had to "hard reset" the box due to the shrapnel. >>> There are no IO errors of any kind leading up to the forced shutdown. >>> I assume the inode update and streamRT-sa hung task traces are a result >>> of the forced shutdown, not a cause of it. In lieu of an xfs_repair >>> with a version newer than I'm able to install, any ideas what caused the >>> forced shutdown after 30 hours, given there are no errors preceding it? >>> >>> >>> Sep 6 06:33:33 Anguish-ssu-1 kernel: [288087.334863] XFS (dm-5): >>> xfs_do_force_shutdown(0x8) called from line 3732 of file >>> fs/xfs/xfs_bmap.c. Return address = 0xffffffffa02009a6 >>> Sep 6 06:33:42 Anguish-ssu-1 kernel: [288096.220920] XFS (dm-5): failed >>> to update timestamps for inode 0x2ffc9caae >> >> Hi Stan, can you need to turn off line wrapping for stuff you paste >> in? It's all but unreadable when it line wraps like this? > > Sorry. I switched my daily desktop from Windows/Tbird to Wheezy/Icedove > and I haven't tweaked it out much yet. I set hard wrap at 72 and that's > the problem. I'll set flowed format and see if that helps. > >> Next, you need to turn /proc/sys/fs/xfs/error_level up to 11 so that >> it dumps a stack trace on corruption events. I don't have a (I can't >> remember what kernel version you are running) tree in front of me to >> convert that line number to something meaningful, so it's not a >> great help... > > error_level is now 11 on both systems and will survive reboots. It's > kernel 3.4.26. > >> Was there anything in the logs before the shutdown? i.e. can you >> paste the dmesg output from the start of the test (i.e. the mount of >> the fs) to the end? > > They have this setup in a quasi production/test manner, which is > frustrating. The two test rigs PXE/tftp boot and mount rootfs on NFS. > Both systems remote log kern.log into to a single file on the boot > server, so I grep for hostname. dmesg isn't logged remotely, and is > lost after a reboot. So I don't have the mount entries for some reason. > It seems kern.log doesn't get populated with all the stuff that goes > into dmesg. I'll be sure to grab all of dmesg next time before > rebooting. However, I don't recall any errors of any kind prior to the > shutdown, which in itself is strange. Hi Dave, Long story short I was able to get 3.12.26 installed and ran the test harness for 96 hours without problems. It usually puked within 30 hours or much sooner. Just prior to this a new firmware was uploaded to the controllers--which decreased throughput by ~35% and increased IO latency by ~25x. So I'm not sure if the new kernel fixed this problem or if it was the new controller firmware. This old firmware (one of about 50 previous binary loads) is planned to be reloaded Monday so we can test against it with 3.12.26 and hopefully put this AIO issue to rest. Thanks, Stan From www-data@mail.chemitec.com.br Sat Sep 20 18:09:24 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: *** X-Spam-Status: No, score=3.2 required=5.0 tests=FREEMAIL_FROM,FREEMAIL_REPLYTO, HTML_MESSAGE,MIME_HTML_ONLY autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 21FAC7F3F for ; Sat, 20 Sep 2014 18:09:24 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id B27D0AC001 for ; Sat, 20 Sep 2014 16:09:19 -0700 (PDT) X-ASG-Debug-ID: 1411254557-04bdf003a275a80001-NocioJ Received: from mail.chemitec.com.br (mail.chemitec.com.br [200.143.182.9]) by cuda.sgi.com with ESMTP id f0rwhJDXzYrsqYVH for ; Sat, 20 Sep 2014 16:09:18 -0700 (PDT) X-Barracuda-Envelope-From: www-data@mail.chemitec.com.br X-Barracuda-Apparent-Source-IP: 200.143.182.9 Received: from localhost (localhost [127.0.0.1]) by mail-chemitec.182.143.200.static.sp2.alog.com.br (Postfix) with ESMTP id C43034A4FC1 for ; Sat, 20 Sep 2014 20:09:16 -0300 (BRT) X-Virus-Scanned: by amavisd-new-2.6.4 (20090625) (Debian) at 182.143.200.static.sp2.alog.com.br X-Amavis-Alert: BAD HEADER SECTION, Improper use of control character (char 0D hex): From: Lucy Conner \r Received: from mail.chemitec.com.br ([127.0.0.1]) by localhost (mail-chemitec.182.143.200.static.sp2.alog.com.br [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id lkY1+Rio9zsi for ; Sat, 20 Sep 2014 20:09:16 -0300 (BRT) Received: by mail-chemitec.182.143.200.static.sp2.alog.com.br (Postfix, from userid 33) id 587FB4A5236; Sat, 20 Sep 2014 20:08:54 -0300 (BRT) To: xfs@oss.sgi.com Subject: Love Dont Cost A Thing X-PHP-Originating-Script: 33:shotterrtrtrteet.php X-ASG-Orig-Subj: Love Dont Cost A Thing From: Lucy Conner Reply-To: talk2lucyconner@yahoo.com MIME-Version: 1.0 Content-Type: text/html Content-Transfer-Encoding: 8bit Message-Id: <20140920230854.587FB4A5236@mail-chemitec.182.143.200.static.sp2.alog.com.br> Date: Sat, 20 Sep 2014 20:08:54 -0300 (BRT) X-Barracuda-Connect: mail.chemitec.com.br[200.143.182.9] X-Barracuda-Start-Time: 1411254558 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE, MIME_HTML_ONLY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9699 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 MIME_HTML_ONLY BODY: Message only has text/html MIME parts 0.00 HTML_MESSAGE BODY: HTML included in message New Page 1

Hi,

I am Lucy Conner, I got your email via internet search. I am looking for an interesting man with a good sense of humor, easy-going, I appreciate seriousness and this should be the main quality in his character. To tell the truth I don't have experience of communicating with men in this way but I would like to find the person who will lead me in the grown life, it might lead to something more, but for now I need a man that I would adore and learn on to have fun when needed, whom we will have a lot in common, who has the knack of listening and talking, who will be loyal not to me but to the love and affection we are going to share. I want to find my match here and live with him all my life.

kindly view attached my pics.

Love

Lucy

From david@fromorbit.com Sat Sep 20 18:45:06 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 27E3D7F3F for ; Sat, 20 Sep 2014 18:45:06 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 12B86304039 for ; Sat, 20 Sep 2014 16:45:05 -0700 (PDT) X-ASG-Debug-ID: 1411256702-04cbb0730173520001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id c60ChyGZA5zDNqZC for ; Sat, 20 Sep 2014 16:45:03 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtY6ABcRHlR5LM9HPGdsb2JhbABfgw5TV4Ixsy4BAgEBAQaUNIFdhWoCAgEBAXsXAQYBAQEBODeEAwEBAQMBOg0PIxAIAw4KCSUPBSUDBxoTiDYHDrJ3kCIYGIV1h2eCEgeESwWGIIsPhGCHBplGKy8BgkkBAQE Received: from ppp121-44-207-71.lns20.syd7.internode.on.net (HELO dastard) ([121.44.207.71]) by ipmail06.adl2.internode.on.net with ESMTP; 21 Sep 2014 09:15:01 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XVUKq-0007hR-QG; Sun, 21 Sep 2014 09:45:00 +1000 Date: Sun, 21 Sep 2014 09:45:00 +1000 From: Dave Chinner To: Brian Foster Cc: fstests@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [PATCH] xfs/062: add xfs unwritten extent data corruption reproducer Message-ID: <20140920234500.GK4267@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs/062: add xfs unwritten extent data corruption reproducer References: <1411150385-32121-1-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411150385-32121-1-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1411256702 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9700 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Sep 19, 2014 at 02:13:05PM -0400, Brian Foster wrote: > XFS had a data corruption problem where writeback of pages to unwritten > extents would fail to run unwritten extent conversion at I/O completion. > This causes subsequent reads of written, but unconverted regions to > return zeroes. This occurs on sub-page block size filesystems when > writeback contends for the inode lock (e.g., with a file writer). > > Add a test that creates the conditions to reproduce the data corruption > and detect it by looking for unwritten extents after all said extents > have been overwritten. > > Signed-off-by: Brian Foster > --- > > Hi all, > > Here's a test for the data corruption issue I sent a fix for yesterday: > > http://oss.sgi.com/archives/xfs/2014-09/msg00259.html > > It took a little time to improve the effectiveness of the test, but I've > been able to run it in current form for 90+ iterations without a false > negative (e.g., test passes when it shouldn't) on my setup. It runs in > ~30s when there is no failure. > > Brian > > tests/xfs/062 | 114 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ > tests/xfs/062.out | 5 +++ > tests/xfs/group | 1 + > 3 files changed, 120 insertions(+) > create mode 100755 tests/xfs/062 > create mode 100644 tests/xfs/062.out There's nothing XFS specific about this test. Yes, it exposes a bug on XFS, but every filesystem should be able to run and pass this test. > > diff --git a/tests/xfs/062 b/tests/xfs/062 > new file mode 100755 > index 0000000..61f8cf4 > --- /dev/null > +++ b/tests/xfs/062 > @@ -0,0 +1,114 @@ > +#! /bin/bash > +# FS QA Test No. 062 > +# > +# This test implements a data corruption scenario on XFS filesystems with > +# sub-page sized blocks and unwritten extents. Inode lock contention during > +# writeback of pages to unwritten extents leads to failure to convert those > +# extents on I/O completion. This causes data corruption as unwritten extents > +# are always read back as zeroes. > +# > +#----------------------------------------------------------------------- > +# Copyright (c) 2014 Red Hat, Inc. All Rights Reserved. > +# > +# This program is free software; you can redistribute it and/or > +# modify it under the terms of the GNU General Public License as > +# published by the Free Software Foundation. > +# > +# This program is distributed in the hope that it would be useful, > +# but WITHOUT ANY WARRANTY; without even the implied warranty of > +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > +# GNU General Public License for more details. > +# > +# You should have received a copy of the GNU General Public License > +# along with this program; if not, write the Free Software Foundation, > +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA > +#----------------------------------------------------------------------- > +# > + > +seq=`basename $0` > +seqres=$RESULT_DIR/$seq > +echo "QA output created by $seq" > + > +here=`pwd` > +status=1 # failure is the default! > +trap "_cleanup; exit \$status" 0 1 2 3 15 Always need to set $tmp here. It's used by things like _scratch_mkfs. > + > +_cleanup() > +{ > + cd / > + kill -9 $syncpid > /dev/null 2>&1 wait rm -f $tmp.* > +} > + > +# get standard environment, filters and checks > +. ./common/rc > +. ./common/punch > + > +# real QA test starts here > + > +_syncloop() > +{ > + while [ true ] > + do > + sync > + done while [....]; do ..... done > +} > + > +# Modify as appropriate. > +_supported_fs xfs > +_supported_os Linux > +_require_scratch > +_require_xfs_io_command "falloc" _require_xfs_io_command "fiemap" > + > +_scratch_mkfs >/dev/null 2>&1 > +_scratch_mount > + > +# run background sync thread > +_syncloop & > +syncpid=$! > + > +for iters in $(seq 1 100) > +do > + rm -f $SCRATCH_MNT/file > + > + # create a delalloc block in each page of the first 64k of the file > + for pgoff in $(seq 0 0x1000 0xf000) > + do > + offset=$((pgoff + 0xc00)) > + $XFS_IO_PROG -fc "pwrite $offset 0x1" $SCRATCH_MNT/file \ > + > /dev/null 2>&1 > + done for .... ; do ..... done is the normal way of doing this. Also it's worth splitting the xfs_io command across multiple lines as you have done later on to make it more readable. Maybe, also, redirect the output to $seqres.full so it's there for debugging failures rather than /dev/null. > + > + # preallocate the first 64k and overwite, writing past 64k to contend > + # with writeback > + $XFS_IO_PROG \ > + -c "falloc 0 0x10000" \ > + -c "pwrite 0 0x100000" \ > + -c "fsync" \ > + $SCRATCH_MNT/file > /dev/null 2>&1 > + > + # Check for unwritten extents. We should have none since we wrote over > + # the entire preallocated region and ran fsync. > + xfs_bmap -v $SCRATCH_MNT/file | _filter_bmap | grep unwritten \ > + > /dev/null 2>&1 Use $XFS_IO_PROG -c "fiemap -v" and dump the output to $seqres.full. > + if [ $? == 0 ] > + then > + xfs_bmap -v $SCRATCH_MNT/file > + break > + fi if [...]; then. That's also a failure, right? So shouldn't it set status=1 and exit, leaving the cleanup function to kill and wait for everything to finish? > +done > + > +echo $iters iterations > + > +kill $syncpid > +wait > + > +# clear page cache and dump the file > +_scratch_unmount > +_scratch_mount _scratch_remount > +hexdump $SCRATCH_MNT/file > + > +_scratch_unmount > +_check_scratch_fs Don't need to do that anymore. > + > +status=0 > +exit > diff --git a/tests/xfs/062.out b/tests/xfs/062.out > new file mode 100644 > index 0000000..420f2e4 > --- /dev/null > +++ b/tests/xfs/062.out > @@ -0,0 +1,5 @@ > +QA output created by 062 > +100 iterations > +0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd > +* > +0100000 > diff --git a/tests/xfs/group b/tests/xfs/group > index 09bce15..685cbe7 100644 > --- a/tests/xfs/group > +++ b/tests/xfs/group > @@ -57,6 +57,7 @@ > 059 dump ioctl auto quick > 060 dump ioctl auto quick > 061 dump ioctl auto quick > +062 auto quick and the rw group, too. Cheers, Dave. -- Dave Chinner david@fromorbit.com From root@krios.tbi.univie.ac.at Sat Sep 20 23:25:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 438ED7F3F for ; Sat, 20 Sep 2014 23:25:11 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 319F98F8033 for ; Sat, 20 Sep 2014 21:25:07 -0700 (PDT) X-ASG-Debug-ID: 1411273505-04cb6c50e477f70001-NocioJ Received: from krios.tbi.univie.ac.at (krios.tbi.univie.ac.at [131.130.44.60]) by cuda.sgi.com with ESMTP id mpXGcMay6Fgo9tAS for ; Sat, 20 Sep 2014 21:25:06 -0700 (PDT) X-Barracuda-Envelope-From: root@krios.tbi.univie.ac.at X-Barracuda-Apparent-Source-IP: 131.130.44.60 Received: by krios.tbi.univie.ac.at (Postfix) id 9C5095F33F; 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Sun, 21 Sep 2014 05:30:17 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id A2B78304048 for ; Sun, 21 Sep 2014 03:30:14 -0700 (PDT) X-ASG-Debug-ID: 1411295407-04cbb0730280c30001-NocioJ Received: from a2.pointingyou.com (69-190-128-104-static.reverse.queryfoundry.net [104.128.190.69]) by cuda.sgi.com with ESMTP id 1xpaOJZbgPQuipqr (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sun, 21 Sep 2014 03:30:07 -0700 (PDT) X-Barracuda-Envelope-From: admin@a2.pointingyou.com X-Barracuda-Apparent-Source-IP: 104.128.190.69 Received: from 112.90.37.233 (unknown [112.90.37.233]) by a2.pointingyou.com (Postfix) with ESMTPA id 46A2D52F7F for ; Sun, 21 Sep 2014 18:30:15 +0800 (CST) X-DKIM: Sendmail DKIM Filter v2.8.3 a2.pointingyou.com 46A2D52F7F DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=a2.pointingyou.com; s=a2; t=1411295416; bh=lwpA1AbGb1e06gLVYG+blBnNBsoZDdj2f+eGgxP5DKE=; h=From:Subject:To:Content-Type:MIME-Version:Reply-To:Date; b=CtKCJ7040bl62duzpciCla9ySJOm9vOZfrxE11yTZBW9gUKp2zhvN+8pNKJfpkMUR EZhsjRTSnMHnFhQqAG3NkeBCUQqnxtc51OORZSW6xlJYqEEiUMK5canZlSoI7BM9zS ycLkl8HvMQwgpok0bU6VEFEDPalMEfr3kRHtbZlk= From: "win" Subject: World first----Super size 16 millions color Changing LED Mood Light/18:29:47 To: "xfs" X-ASG-Orig-Subj: World first----Super size 16 millions color Changing LED Mood Light/18:29:47 Content-Type: multipart/alternative; boundary="0aO7uSrx1JlNaDUaqLwmG8TS=_ObKC3fbI" MIME-Version: 1.0 Reply-To: "Chen" Date: Sun, 21 Sep 2014 18:29:49 +0800 Priority: urgent X-Priority: 1 X-Barracuda-Connect: 69-190-128-104-static.reverse.queryfoundry.net[104.128.190.69] X-Barracuda-Start-Time: 1411295407 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 1.40 X-Barracuda-Spam-Status: No, SCORE=1.40 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE, MISSING_MID, RCVD_NUMERIC_HELO, RCVD_NUMERIC_HELO_2 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9714 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.14 MISSING_MID Missing Message-Id: header 0.00 RCVD_NUMERIC_HELO Received: contains an IP address used for HELO -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message 1.25 RCVD_NUMERIC_HELO_2 Received: contains an IP address used for HELO Message-Id: <20140921103014.0B4B8106C883@cuda.sgi.com> This is a multi-part message in MIME format --0aO7uSrx1JlNaDUaqLwmG8TS=_ObKC3fbI Content-Type: text/plain; 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2). It also = features a transparent, bubble-like design th= at allows you to see into its metal=  interior.

3). And it has super s= ize with the diameter 25cm,making it emi= tt sufficient romantic lighting.

4). Using&= nbsp;touch-sensitive remote control, you can = instantly change the color and magically = ;bathe your room in a color

 that suits your mo= od.

5). The lamp also gives you a=  second, more-dynamic option: automatic color=  changing mode. 

weblink: h= ttp://www.starringled.com/product/showproduct.php?lang=3Den&id=3D1= 06  

  

Prices:

The big size 25cm diameter, = ;the package weight is around 5KG.

For=  sample price, it is 106USD/per,including&nbs= p;the DHL door to door charge.
Bulk o= rder prices are negotiable.

If you have interest in our products,please feel fre= e to contact us.

Best regards/Mr.Chen

Company: GD Hi-tech lighting Group Co,.LTD
Websit= e: http://www.starringled.com            &= nbsp;           = ;          
Add:= :Building 6, Baolong Indutrial park, longgang district,Shenzhen China&= nbsp;           = ;           &nb= sp;         
Email: <= A href=3D"mailto:sales@starringled.com">sales@starringled.com &nbs= p;           &n= bsp;           =            &nbs= p;           &n= bsp;           =     
Mobile: +86-13714518751,Tel: +86-755-3662= 6032 (10 lines)         &= nbsp;           = ;           &nb= sp;    
Skype: xiaguangchen

  
Le= t our LED mood light bring colors and romance to your life!

 

If you don't want to hear from us,ple= ase click Here to unsubscribe     &nb= sp;     21/9/201= 418:29:476Q5ew
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7F258120064; Mon, 22 Sep 2014 09:18:55 -0400 (EDT) Date: Mon, 22 Sep 2014 09:18:55 -0400 From: Brian Foster To: Eric Sandeen Cc: xfs-oss Subject: Re: [PATCH] xfs_repair: validate & fix inode CRCs Message-ID: <20140922131855.GA29156@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs_repair: validate & fix inode CRCs References: <5418AC01.30006@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5418AC01.30006@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411391937 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Sep 16, 2014 at 04:30:41PM -0500, Eric Sandeen wrote: > xfs_repair doesn't ever check an inode's CRC, so it never repairs > them. If the root inode or realtime inodes have bad crcs, the > fs won't even mount and can't be fixed (without using xfs_db). > > It's fairly straightforward to just test the inode CRC before > we do any other checking or modification of the inode, once we > get past the "verify only" phase of process_dinode_int(); > just mark it dirty if it's wrong and needs to be re-written. > > Signed-off-by: Eric Sandeen > --- > > forgive the gratuitous big honkin' comment line, but > process_dinode_int is so long, I thought the visual delimiter was > useful. ;) > > diff --git a/repair/dinode.c b/repair/dinode.c > index 8891e84..27c0da6 100644 > --- a/repair/dinode.c > +++ b/repair/dinode.c > @@ -2524,6 +2524,30 @@ _("bad (negative) size %" PRId64 " on inode %" PRIu64 "\n"), > if (verify_mode) > return retval; > > + /* =========== END OF VERIFY MODE =================== */ > + > + /* > + * We'd really like to know if the CRC is bad before we > + * go fixing anything; that way we have some hint about > + * bit-rot vs bugs. Also, any changes will invalidate the > + * existing CRC, so this is the only valid point to test it. > + * > + * Of course if we make any modifications after this, the > + * inode gets rewritten, and CRC is updated automagically. > + */ > + if (xfs_sb_version_hascrc(&mp->m_sb)) { > + ASSERT(!verify_mode); > + if(!xfs_verify_cksum((char *)dino, mp->m_sb.sb_inodesize, > + XFS_DINODE_CRC_OFF)) { > + do_warn(_("bad CRC for inode %" PRIu64), lino); > + if (!no_modify) { > + do_warn(_(", will rewrite\n")); > + *dirty = 1; > + } else > + do_warn(_(", would rewrite\n")); > + } > + } > + So we verify each inode first in process_inode_chunk() and then follow on with process_dinode(). There's a comment further up in process_dinode_int() that indicates we explicitly do not check the crc at that point, presumably considering verify_mode. I only see one call to each of verify_inode() and process_dinode() (in that order). The other process_dinode_int() caller is verify_uncertain_dinode(), which looks like it occurs ultimately from process_uncertain_aginodes() in phase 3. I suppose that logic makes sense, but it's not totally clear tbh. We do fix up the crc in the caller if the inode is marked dirty. It also seems like it's possible to modify the inode before this point where we check the crc. Given that, it seems like we could just add an "if (!verify_mode)" hunk to the preexisting hascrc() hunk further up in the function..? I don't really have a clear beat on this at the moment. I think what I'm getting after is that right now if we see the new crc message, it isn't necessarily clear if that is because repair changed something or it is legitimately wrong on-disk, depending on how the inode might be corrupted or if the inode is free (do we care about crc's in that case? it looks like we miss that as well). It would be nice if we had some kind of consistent rule for this scenario, such as "always print the error if the crc is wrong" (e.g., before we make any modifications) or "only print the error if the crc is the only thing wrong" (e.g., we've already verified the inode and the crc itself is wrong). Either way it seems inappropriate to print a crc error that might be caused by repair itself. Brian > /* > * clear the next unlinked field if necessary on a good > * inode only during phase 4 -- when checking for inodes > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Mon Sep 22 08:21:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id BB4897F50 for ; Mon, 22 Sep 2014 08:21:11 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id A7A788F804B for ; Mon, 22 Sep 2014 06:21:11 -0700 (PDT) X-ASG-Debug-ID: 1411392070-04cbb07304b0550001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id iqUGvCJf2VRW3WIH (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 22 Sep 2014 06:21:10 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8MDL9XT010182 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 22 Sep 2014 09:21:09 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8MDL8n5021630; Mon, 22 Sep 2014 09:21:08 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 834DB120064; Mon, 22 Sep 2014 09:21:07 -0400 (EDT) Date: Mon, 22 Sep 2014 09:21:07 -0400 From: Brian Foster To: Eric Sandeen Cc: xfs-oss Subject: Re: [PATCH] libxfs: use structure initializers for cache_operations Message-ID: <20140922132107.GB29156@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] libxfs: use structure initializers for cache_operations References: <541C95B1.9020807@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <541C95B1.9020807@sandeen.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411392070 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Sep 19, 2014 at 03:44:33PM -0500, Eric Sandeen wrote: > This makes it a lot easier for cscope etc. > > Surely all modern compilers can cope? > > Signed-off-by: Eric Sandeen > --- Seems reasonable to me. Reviewed-by: Brian Foster > > diff --git a/libxfs/rdwr.c b/libxfs/rdwr.c > index 9ee89d3..80de6fa 100644 > --- a/libxfs/rdwr.c > +++ b/libxfs/rdwr.c > @@ -1088,12 +1088,12 @@ libxfs_bcache_overflowed(void) > } > > struct cache_operations libxfs_bcache_operations = { > - /* .hash */ libxfs_bhash, > - /* .alloc */ libxfs_balloc, > - /* .flush */ libxfs_bflush, > - /* .relse */ libxfs_brelse, > - /* .compare */ libxfs_bcompare, > - /* .bulkrelse */libxfs_bulkrelse > + .hash = libxfs_bhash, > + .alloc = libxfs_balloc, > + .flush = libxfs_bflush, > + .relse = libxfs_brelse, > + .compare = libxfs_bcompare, > + .bulkrelse = libxfs_bulkrelse > }; > > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From sandeen@sandeen.net Mon Sep 22 09:45:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 5C9237F51 for ; Mon, 22 Sep 2014 09:45:52 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id F03A1AC005 for ; Mon, 22 Sep 2014 07:45:51 -0700 (PDT) X-ASG-Debug-ID: 1411397147-04bdf003a0ba220001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id zJB9SGETN5bcOkCi for ; Mon, 22 Sep 2014 07:45:47 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id F239063C0582; Mon, 22 Sep 2014 09:45:46 -0500 (CDT) Message-ID: <5420361C.1090500@sandeen.net> Date: Mon, 22 Sep 2014 09:45:48 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Brian Foster , Eric Sandeen CC: xfs-oss Subject: Re: [PATCH] xfs_repair: validate & fix inode CRCs References: <5418AC01.30006@redhat.com> <20140922131855.GA29156@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs_repair: validate & fix inode CRCs In-Reply-To: <20140922131855.GA29156@bfoster.bfoster> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1411397147 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9753 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/22/14 8:18 AM, Brian Foster wrote: > So we verify each inode first in process_inode_chunk() and then follow > on with process_dinode(). There's a comment further up in > process_dinode_int() that indicates we explicitly do not check the crc > at that point, presumably considering verify_mode. I only see one call > to each of verify_inode() and process_dinode() (in that order). The > other process_dinode_int() caller is verify_uncertain_dinode(), which > looks like it occurs ultimately from process_uncertain_aginodes() in > phase 3. > > I suppose that logic makes sense, but it's not totally clear tbh. We do > fix up the crc in the caller if the inode is marked dirty. It also seems > like it's possible to modify the inode before this point where we check > the crc. Given that, it seems like we could just add an "if > (!verify_mode)" hunk to the preexisting hascrc() hunk further up in the > function..? Ugh, I am not sure how I missed that we could have already modified it. Ok, that throws the whole thing out, I'll take another look. Thanks, -Eric From andi@firstfloor.org Mon Sep 22 09:56:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C61DF7F53 for ; Mon, 22 Sep 2014 09:56:21 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id B53728F8035 for ; Mon, 22 Sep 2014 07:56:18 -0700 (PDT) X-ASG-Debug-ID: 1411397776-04cb6c50e5b2fc0001-NocioJ Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by cuda.sgi.com with ESMTP id vwhYS5lgVe8VBt27 for ; Mon, 22 Sep 2014 07:56:17 -0700 (PDT) X-Barracuda-Envelope-From: andi@firstfloor.org X-Barracuda-Apparent-Source-IP: 192.55.52.93 Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP; 22 Sep 2014 07:56:16 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,572,1406617200"; d="scan'208";a="603465231" Received: from tassilo.jf.intel.com (HELO tassilo.localdomain) ([10.7.201.157]) by fmsmga002.fm.intel.com with ESMTP; 22 Sep 2014 07:55:59 -0700 Received: by tassilo.localdomain (Postfix, from userid 1000) id 3DE60300D7A; Mon, 22 Sep 2014 07:55:59 -0700 (PDT) From: Andi Kleen To: Ben Myers Cc: linux-fsdevel@vger.kernel.org, tinguely@sgi.com, olaf@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS References: <20140918195650.GI19952@sgi.com> X-ASG-Orig-Subj: Re: [RFC v2] Unicode/UTF-8 support for XFS Date: Mon, 22 Sep 2014 07:55:59 -0700 In-Reply-To: <20140918195650.GI19952@sgi.com> (Ben Myers's message of "Thu, 18 Sep 2014 14:56:50 -0500") Message-ID: <87lhpbhfgg.fsf@tassilo.jf.intel.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Barracuda-Connect: mga11.intel.com[192.55.52.93] X-Barracuda-Start-Time: 1411397776 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9753 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Ben Myers writes: > > Strings are normalized using a trie that stores the relevant > information. The trie itself is about 250kB in size, and lives in a > separate module. So 250kB bloat -- and what does this fix exactly? Someone putting random ligatures into their file names and expecting the file to be the same as before. Can't they just not do that? -Andi From BATV+2673b30bf3b50f663555+4047+infradead.org+hch@bombadil.srs.infradead.org Mon Sep 22 12:35:57 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 546D07F4E for ; Mon, 22 Sep 2014 12:35:57 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 430D7304039 for ; Mon, 22 Sep 2014 10:35:53 -0700 (PDT) X-ASG-Debug-ID: 1411407346-04cb6c50e7badc0001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id gGJ7nc9VopPFOHs6 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 22 Sep 2014 10:35:47 -0700 (PDT) X-Barracuda-Envelope-From: BATV+2673b30bf3b50f663555+4047+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XW7Wb-0006nd-HA for xfs@oss.sgi.com; Mon, 22 Sep 2014 17:35:45 +0000 Date: Mon, 22 Sep 2014 10:35:45 -0700 From: Christoph Hellwig To: xfs@oss.sgi.com Subject: beginners project: RENAME_EXCHANGE Message-ID: <20140922173545.GA20308@infradead.org> X-ASG-Orig-Subj: beginners project: RENAME_EXCHANGE MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1411407347 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9758 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- As people are looking for beginners projects one in a while there's an easy one at the moment: implement support for the RENAME_EXCHANGE flag to the renameat2 system call, which swaps the names for two existing files. Documentation here: http://man7.org/linux/man-pages/man2/rename.2.html This should mostly be doable by refactoring (or more likely copy & pasting) the existing rename implementation. xfstests already has test case for it, although making sure they covering everything would be a nice extrea. (if no one replies to the list I will add it to the wiki after a while) From bpm@sgi.com Mon Sep 22 13:41:48 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id B66D27F4E for ; Mon, 22 Sep 2014 13:41:48 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay2.corp.sgi.com (Postfix) with ESMTP id 8C8D4304032; Mon, 22 Sep 2014 11:41:45 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 52E584266DC; Mon, 22 Sep 2014 13:41:45 -0500 (CDT) Date: Mon, 22 Sep 2014 13:41:45 -0500 From: Ben Myers To: Andi Kleen Cc: linux-fsdevel@vger.kernel.org, tinguely@sgi.com, olaf@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS Message-ID: <20140922184145.GH4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <87lhpbhfgg.fsf@tassilo.jf.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87lhpbhfgg.fsf@tassilo.jf.intel.com> User-Agent: Mutt/1.5.20 (2009-06-14) Hey Andi, On Mon, Sep 22, 2014 at 07:55:59AM -0700, Andi Kleen wrote: > Ben Myers writes: > > > > Strings are normalized using a trie that stores the relevant > > information. The trie itself is about 250kB in size, and lives in a > > separate module. > > So 250kB bloat -- and what does this fix exactly? We're trying to address the size issue by only loading the module when it's needed, but yeah it's big. Open to suggestions on how best to deal with that. I understand the sticker shock. > Someone putting random ligatures into their file names and expecting > the file to be the same as before. Can't they just not do that? The ligature example that Olaf gave might seem kind of trivial, but for other characters and languages could it be more significant? As far as telling the customer "don't do that", my guess is that they would just go elsewhere. There are several other options for filesystems that support unicode. Thanks, Ben From andi@firstfloor.org Mon Sep 22 14:30:05 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 5A0C87F4E for ; Mon, 22 Sep 2014 14:30:05 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id ED109AC004 for ; Mon, 22 Sep 2014 12:30:01 -0700 (PDT) X-ASG-Debug-ID: 1411414198-04cbb07301c1300001-NocioJ Received: from one.firstfloor.org (one.firstfloor.org [193.170.194.197]) by cuda.sgi.com with ESMTP id uDna5WuBUHRCrmyB (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 22 Sep 2014 12:30:00 -0700 (PDT) X-Barracuda-Envelope-From: andi@firstfloor.org X-Barracuda-Apparent-Source-IP: 193.170.194.197 Received: by one.firstfloor.org (Postfix, from userid 503) id 24AC386A02; Mon, 22 Sep 2014 21:29:58 +0200 (CEST) Date: Mon, 22 Sep 2014 21:29:58 +0200 From: Andi Kleen To: Ben Myers Cc: Andi Kleen , linux-fsdevel@vger.kernel.org, tinguely@sgi.com, olaf@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS Message-ID: <20140922192958.GJ4120@two.firstfloor.org> X-ASG-Orig-Subj: Re: [RFC v2] Unicode/UTF-8 support for XFS References: <20140918195650.GI19952@sgi.com> <87lhpbhfgg.fsf@tassilo.jf.intel.com> <20140922184145.GH4482@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140922184145.GH4482@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: one.firstfloor.org[193.170.194.197] X-Barracuda-Start-Time: 1411414199 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9761 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- > > So 250kB bloat -- and what does this fix exactly? > > We're trying to address the size issue by only loading the module when I'm not sure this is really addressing it. > it's needed, but yeah it's big. Open to suggestions on how best to deal > with that. I understand the sticker shock. I don't even understand why you need the whole table. You want to not compare some special symbols, and a few other symbols are equivalent to others. But most symbols are only identical to themselves. Couldn't you have a much smaller table that only expresses the exceptions? > As far as telling the customer "don't do that", my guess is that they > would just go elsewhere. There are several other options for > filesystems that support unicode. They could put some code into their user app that generates an unique representation. -Andi From bfoster@redhat.com Mon Sep 22 14:40:31 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 0C5447F50 for ; Mon, 22 Sep 2014 14:40:31 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 8EC28AC001 for ; Mon, 22 Sep 2014 12:40:30 -0700 (PDT) X-ASG-Debug-ID: 1411414828-04cbb07304c1ce0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id FZYHPO52QwGo7ZEl (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 22 Sep 2014 12:40:29 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8MJeKdD019980 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 22 Sep 2014 15:40:20 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8MJeKqR011925; Mon, 22 Sep 2014 15:40:20 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 91A92120064; Mon, 22 Sep 2014 15:40:18 -0400 (EDT) Date: Mon, 22 Sep 2014 15:40:18 -0400 From: Brian Foster To: Dave Chinner Cc: fstests@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [PATCH] xfs/062: add xfs unwritten extent data corruption reproducer Message-ID: <20140922194018.GA39580@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs/062: add xfs unwritten extent data corruption reproducer References: <1411150385-32121-1-git-send-email-bfoster@redhat.com> <20140920234500.GK4267@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140920234500.GK4267@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411414829 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sun, Sep 21, 2014 at 09:45:00AM +1000, Dave Chinner wrote: > On Fri, Sep 19, 2014 at 02:13:05PM -0400, Brian Foster wrote: > > XFS had a data corruption problem where writeback of pages to unwritten > > extents would fail to run unwritten extent conversion at I/O completion. > > This causes subsequent reads of written, but unconverted regions to > > return zeroes. This occurs on sub-page block size filesystems when > > writeback contends for the inode lock (e.g., with a file writer). > > > > Add a test that creates the conditions to reproduce the data corruption > > and detect it by looking for unwritten extents after all said extents > > have been overwritten. > > > > Signed-off-by: Brian Foster > > --- > > > > Hi all, > > > > Here's a test for the data corruption issue I sent a fix for yesterday: > > > > http://oss.sgi.com/archives/xfs/2014-09/msg00259.html > > > > It took a little time to improve the effectiveness of the test, but I've > > been able to run it in current form for 90+ iterations without a false > > negative (e.g., test passes when it shouldn't) on my setup. It runs in > > ~30s when there is no failure. > > > > Brian > > > > tests/xfs/062 | 114 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > tests/xfs/062.out | 5 +++ > > tests/xfs/group | 1 + > > 3 files changed, 120 insertions(+) > > create mode 100755 tests/xfs/062 > > create mode 100644 tests/xfs/062.out > > There's nothing XFS specific about this test. Yes, it exposes a bug > on XFS, but every filesystem should be able to run and pass this > test. > Indeed, converted to a generic test. > > > > diff --git a/tests/xfs/062 b/tests/xfs/062 > > new file mode 100755 > > index 0000000..61f8cf4 > > --- /dev/null > > +++ b/tests/xfs/062 ... > > + if [ $? == 0 ] > > + then > > + xfs_bmap -v $SCRATCH_MNT/file > > + break > > + fi > > if [...]; then. > > That's also a failure, right? So shouldn't it set status=1 and exit, > leaving the cleanup function to kill and wait for everything to > finish? > It's the main/expected failure. The intent was to use the hexdump as the determination for success/failure, but I had to determine when to break out of the loop since the reproducer requires several iterations. I figured the raw extent map output would be useful (the output of which also calls out something is wrong when compared to the golden output) as well as the content diff, so both are printed in the failure case. I've added an additional comment here for the v2 I'm about to post. I can just dump the extent map here and exit with status=1 if that is preferred, but it seems appropriate to include the hexdump in the failure scenario as well. Brian > > +done > > + > > +echo $iters iterations > > + > > +kill $syncpid > > +wait > > + > > +# clear page cache and dump the file > > +_scratch_unmount > > +_scratch_mount > > _scratch_remount > > > +hexdump $SCRATCH_MNT/file > > + > > +_scratch_unmount > > +_check_scratch_fs > > Don't need to do that anymore. > > > + > > +status=0 > > +exit > > diff --git a/tests/xfs/062.out b/tests/xfs/062.out > > new file mode 100644 > > index 0000000..420f2e4 > > --- /dev/null > > +++ b/tests/xfs/062.out > > @@ -0,0 +1,5 @@ > > +QA output created by 062 > > +100 iterations > > +0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd > > +* > > +0100000 > > diff --git a/tests/xfs/group b/tests/xfs/group > > index 09bce15..685cbe7 100644 > > --- a/tests/xfs/group > > +++ b/tests/xfs/group > > @@ -57,6 +57,7 @@ > > 059 dump ioctl auto quick > > 060 dump ioctl auto quick > > 061 dump ioctl auto quick > > +062 auto quick > > and the rw group, too. > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com From bfoster@redhat.com Mon Sep 22 14:40:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 6AD937F55 for ; Mon, 22 Sep 2014 14:40:40 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 0A098AC008 for ; Mon, 22 Sep 2014 12:40:39 -0700 (PDT) X-ASG-Debug-ID: 1411414838-04bdf003a0cae60001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id IoAqqAMag7tFEXj4 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 22 Sep 2014 12:40:39 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8MJecsF001234 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 22 Sep 2014 15:40:38 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8MJec4r013960; Mon, 22 Sep 2014 15:40:38 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id E658F120064; Mon, 22 Sep 2014 15:40:36 -0400 (EDT) From: Brian Foster To: fstests@vger.kernel.org Cc: xfs@oss.sgi.com Subject: [PATCH v2] generic/032: add xfs unwritten extent data corruption reproducer Date: Mon, 22 Sep 2014 15:40:36 -0400 X-ASG-Orig-Subj: [PATCH v2] generic/032: add xfs unwritten extent data corruption reproducer Message-Id: <1411414836-64598-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411414839 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 XFS had a data corruption problem where writeback of pages to unwritten extents would fail to run unwritten extent conversion at I/O completion. This causes subsequent reads of written, but unconverted regions to return zeroes. This occurs on sub-page block size filesystems when writeback contends for the inode lock (e.g., with a file writer). Add a test that creates the conditions to reproduce the data corruption and detect it by looking for unwritten extents after all said extents have been overwritten. Signed-off-by: Brian Foster --- v2: - Converted to generic test. - Use fiemap instead of xfs_bmap. - Added to rw group. - Various fixups: init/clean $tmp, loop syntax, redirect output to $seqres.full, use _scratch_remount. v1: http://oss.sgi.com/archives/xfs/2014-09/msg00296.html tests/generic/032 | 119 ++++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/032.out | 5 +++ tests/generic/group | 1 + 3 files changed, 125 insertions(+) create mode 100755 tests/generic/032 create mode 100644 tests/generic/032.out diff --git a/tests/generic/032 b/tests/generic/032 new file mode 100755 index 0000000..deaeba8 --- /dev/null +++ b/tests/generic/032 @@ -0,0 +1,119 @@ +#! /bin/bash +# FS QA Test No. 032 +# +# This test implements a data corruption scenario on XFS filesystems with +# sub-page sized blocks and unwritten extents. Inode lock contention during +# writeback of pages to unwritten extents leads to failure to convert those +# extents on I/O completion. This causes data corruption as unwritten extents +# are always read back as zeroes. +# +#----------------------------------------------------------------------- +# Copyright (c) 2014 Red Hat, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + kill -9 $syncpid > /dev/null 2>&1 + wait + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/punch + +# real QA test starts here +rm -f $seqres.full + +_syncloop() +{ + while [ true ]; do + sync + done +} + +# Modify as appropriate. +_supported_fs generic +_supported_os Linux +_require_scratch +_require_xfs_io_command "falloc" +_require_xfs_io_command "fiemap" + +_scratch_mkfs >/dev/null 2>&1 +_scratch_mount + +# run background sync thread +_syncloop & +syncpid=$! + +for iters in $(seq 1 100) +do + rm -f $SCRATCH_MNT/file + + # create a delalloc block in each page of the first 64k of the file + for pgoff in $(seq 0 0x1000 0xf000); do + offset=$((pgoff + 0xc00)) + $XFS_IO_PROG -f \ + -c "pwrite $offset 0x1" \ + $SCRATCH_MNT/file >> $seqres.full 2>&1 + done + + # preallocate the first 64k and overwite, writing past 64k to contend + # with writeback + $XFS_IO_PROG \ + -c "falloc 0 0x10000" \ + -c "pwrite 0 0x100000" \ + -c "fsync" \ + $SCRATCH_MNT/file >> $seqres.full 2>&1 + + # Check for unwritten extents. We should have none since we wrote over + # the entire preallocated region and ran fsync. + $XFS_IO_PROG \ + -c "fiemap -v" \ + $SCRATCH_MNT/file | _filter_fiemap | \ + grep unwritten >> $seqres.full 2>&1 + if [ $? == 0 ]; then + # data corruption! dump the extent list and break out to dump + # the file content + $XFS_IO_PROG -c "fiemap -v" $SCRATCH_MNT/file + break + fi +done + +echo $iters iterations + +kill $syncpid +wait + +# clear page cache and dump the file +_scratch_remount +hexdump $SCRATCH_MNT/file + +_scratch_unmount + +status=0 +exit diff --git a/tests/generic/032.out b/tests/generic/032.out new file mode 100644 index 0000000..ca5376d --- /dev/null +++ b/tests/generic/032.out @@ -0,0 +1,5 @@ +QA output created by 032 +100 iterations +0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd +* +0100000 diff --git a/tests/generic/group b/tests/generic/group index bdcfd9d..8e0c22a 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -31,6 +31,7 @@ 026 acl quick auto 027 auto enospc 028 auto quick +032 auto quick rw 053 acl repair auto quick 062 attr udf auto quick 068 other auto freeze dangerous stress -- 1.8.3.1 From david@fromorbit.com Mon Sep 22 15:54:46 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D91BA7F4E for ; Mon, 22 Sep 2014 15:54:46 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id B7B30304048 for ; Mon, 22 Sep 2014 13:54:46 -0700 (PDT) X-ASG-Debug-ID: 1411419280-04cbb07302c4eb0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id NAVtheAUvvfNBDnk for ; Mon, 22 Sep 2014 13:54:41 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AkI6AIeLIFR5LM9HPGdsb2JhbABggw5TV7YbBpQ2gVuFagICAQEBgRIXAQYBAQEBODiEAwEBAQQ6HCMQCAMOBwMJJQ8FJQMHGhMJiDQOxGoYGIV1iXkHhEsFj0CNVZlGKy8BAQGCRwEBAQ Received: from ppp121-44-207-71.lns20.syd7.internode.on.net (HELO dastard) ([121.44.207.71]) by ipmail06.adl6.internode.on.net with ESMTP; 23 Sep 2014 06:24:39 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XWAd4-0004pE-R2; Tue, 23 Sep 2014 06:54:38 +1000 Date: Tue, 23 Sep 2014 06:54:38 +1000 From: Dave Chinner To: Ben Myers Cc: linux-fsdevel@vger.kernel.org, tinguely@sgi.com, olaf@sgi.com, xfs@oss.sgi.com Subject: Re: [PATCH 06/10] xfs: add unicode character database files Message-ID: <20140922205438.GM4267@dastard> X-ASG-Orig-Subj: Re: [PATCH 06/10] xfs: add unicode character database files References: <20140918195650.GI19952@sgi.com> <20140918201440.GI4482@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918201440.GI4482@sgi.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1411419280 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9764 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Sep 18, 2014 at 03:14:40PM -0500, Ben Myers wrote: > From: Olaf Weber > > Add files from the Unicode Character Database, version 7.0.0, to the source. > A helper program that generates a trie used for normalization from these > files is part of a separate commit. > > Signed-off-by: Olaf Weber > --- > [v2: Removed large unicode files prior to posting. Get them as below. -bpm] > [v3: Moved files to ucd8norm directory. -bpm] > > cd fs/xfs/utf8norm/ucd > wget http://www.unicode.org/Public/7.0.0/ucd/CaseFolding.txt > wget http://www.unicode.org/Public/7.0.0/ucd/DerivedAge.txt > wget http://www.unicode.org/Public/7.0.0/ucd/extracted/DerivedCombiningClass.txt > wget http://www.unicode.org/Public/7.0.0/ucd/DerivedCoreProperties.txt > wget http://www.unicode.org/Public/7.0.0/ucd/NormalizationCorrections.txt > wget http://www.unicode.org/Public/7.0.0/ucd/NormalizationTest.txt > wget http://www.unicode.org/Public/7.0.0/ucd/UnicodeData.txt > for e in *.txt > do > base=`basename $e .txt` > mv $e $base-7.0.0.txt > done > --- > fs/xfs/utf8norm/ucd/README | 33 +++++++++++++++++++++++++++++++++ This probably needs to live somewhere under lib/. There's nothing XFS specific in it and the translations should be the same for anything that wants to parse unicode. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Sep 22 15:57:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 659927F4E for ; Mon, 22 Sep 2014 15:57:21 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 022E6AC007 for ; Mon, 22 Sep 2014 13:57:17 -0700 (PDT) X-ASG-Debug-ID: 1411419436-04bdf0039fce800001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id hgPmozFQ0JGotKGq for ; Mon, 22 Sep 2014 13:57:16 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ApVDAJ+MIFR5LM9HPGdsb2JhbABggw6BKoc4rmMGlhGFagICAQEBgRMXAQYBAQEBODiEAwEBAQQ6HCMQCAMOBwMJJQ8FJQMHGhOIPcUUGIV1iSFYB4RLBZ0VmUYrL4EGgUQBAQE Received: from ppp121-44-207-71.lns20.syd7.internode.on.net (HELO dastard) ([121.44.207.71]) by ipmail06.adl6.internode.on.net with ESMTP; 23 Sep 2014 06:27:15 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XWAfa-0004pu-FC; Tue, 23 Sep 2014 06:57:14 +1000 Date: Tue, 23 Sep 2014 06:57:14 +1000 From: Dave Chinner To: Ben Myers Cc: linux-fsdevel@vger.kernel.org, tinguely@sgi.com, olaf@sgi.com, xfs@oss.sgi.com Subject: Re: [PATCH 07/10] xfs: add trie generator and supporting code for UTF-8. Message-ID: <20140922205714.GN4267@dastard> X-ASG-Orig-Subj: Re: [PATCH 07/10] xfs: add trie generator and supporting code for UTF-8. References: <20140918195650.GI19952@sgi.com> <20140918201518.GJ4482@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918201518.GJ4482@sgi.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1411419436 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9764 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Sep 18, 2014 at 03:15:19PM -0500, Ben Myers wrote: > From: Olaf Weber > > mkutf8data.c is the source for a program that generates utf8data.h, which > contains the trie that utf8norm.c uses. The trie is generated from the > Unicode 7.0.0 data files. The format of the utf8data[] table is described > in utf8norm.c. > > Supporting functions for UTF-8 normalization are in utf8norm.c with the > header utf8norm.h. Two normalization forms are supported: nfkdi and nfkdicf. > > nfkdi: > - Apply unicode normalization form NFKD. > - Remove any Default_Ignorable_Code_Point. > > nfkdicf: > - Apply unicode normalization form NFKD. > - Remove any Default_Ignorable_Code_Point. > - Apply a full casefold (C + F). > > For the purposes of the code, a string is valid UTF-8 if: > > - The values encoded are 0x1..0x10FFFF. > - The surrogate codepoints 0xD800..0xDFFFF are not encoded. > - The shortest possible encoding is used for all values. > > The supporting functions work on null-terminated strings (utf8 prefix) and > on length-limited strings (utf8n prefix). > > Signed-off-by: Olaf Weber > > --- > [v2: the trie is now separated into utf8norm.ko; > utf8version is now a function and exported; > introduced CONFIG_XFS_UTF8. -bpm] > --- > fs/xfs/Kconfig | 8 + > fs/xfs/Makefile | 2 +- > fs/xfs/utf8norm/Makefile | 37 + > fs/xfs/utf8norm/mkutf8data.c | 3239 ++++++++++++++++++++++++++++++++++++++++++ > fs/xfs/utf8norm/utf8norm.c | 649 +++++++++ > fs/xfs/utf8norm/utf8norm.h | 116 ++ Again, nothing XFS specific here. It's being built as a separate module and the only thing that XFS uses are exported functions, so it really should be generic library code.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Sep 22 16:05:57 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2D30D7F4E for ; Mon, 22 Sep 2014 16:05:57 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id F2E7B8F8050 for ; Mon, 22 Sep 2014 14:05:53 -0700 (PDT) X-ASG-Debug-ID: 1411419950-04bdf003a2ceff0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id xmBNTWd1vFVT1YA5 for ; Mon, 22 Sep 2014 14:05:51 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArcoANyNIFR5LM9HPGdsb2JhbABggw6BKoc4rmMGlhGFagQCAYETFwEGAQEBATg4hAMBAQEDATocIwULCAMYCSUPBSUDBxoTiDYHxH8YGIV1iQ5rB4RLBYUNApgGmUYrL4JKAQEB Received: from ppp121-44-207-71.lns20.syd7.internode.on.net (HELO dastard) ([121.44.207.71]) by ipmail06.adl6.internode.on.net with ESMTP; 23 Sep 2014 06:35:50 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XWAnt-0004sO-1p; Tue, 23 Sep 2014 07:05:49 +1000 Date: Tue, 23 Sep 2014 07:05:49 +1000 From: Dave Chinner To: Alessio Di Maria Cc: xfs@oss.sgi.com Subject: Re: Repair XFS from 1/3 of the table Message-ID: <20140922210548.GO4267@dastard> X-ASG-Orig-Subj: Re: Repair XFS from 1/3 of the table References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1411419950 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9764 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Sep 19, 2014 at 10:58:49PM +0200, Alessio Di Maria wrote: > Hi, for fist i'm sorry for my bad English.. > so, > I'm trying to do a recovery from my NAS, > After it stopped, 3 disk of 4 was reinitialized so, raid partition was > deleted on disk 1 2 and 3, and first about 5m was zero filled.. So you lost the root inode and a lot of other critical metadata. > I'm actually work on a copy of that... > in my luck, the XFS superblock was on 4th disk.. > I was able to rebuild RAID5 with the original configuration and now i can > read RAW files up to few kb... i was able to read a 15Mb zip file, and some > big jpeg, so i can say that RAID it's working fine > > At sector 384 of the raid volume start the xfs superblock, i made a > loopback at this offset, > mounting it.. but obviusly it said that was not clean. > making xfs_repair i get anything, but with xfs_repair -L i had infinite > list of lost inode, and than i was able to mount the partition, > but with any file, only the lost + found directory with few but complete > files... That happens when you lose the root inode. > On the NAS there were Big Files of ISCSI, in the lost + found i find one of > this, big 100Gb.. now i don't know how i can recovery the rest.. If you had regions of of the drives zeroed, then you've lost data randomly in the files in the filesystem. It's basically unrecoverable if you don't have a backup. > Is it possible to find lost inode? You can google for xfs_irecover, but you've already run xfs_repair and so it's going to be mostly useless at this point. > i tryied with many programs to get back the original Filesystem but > anything up the Lost + Found directory after the repair... > I know that XFS is based on sparse file, and so i can't find my file and > hope to copy it contigusly (about 5Gb) cose the fs reidirect zero filled > zone... in addiction i can't do a RAW recovery cose in the deep of 2.7Tb i > find MFT entryies and system files inner ISCSI units... > So what chache? > Wha can i do myself? If xfs_repair hasn't recovered the inodes that contained the files you care about, then it's almost certain that you've lost those files forever unless you have a backup. You can try grepping the raw device for sectors that contain signatures you care about, but that only works for contiguous files that were lost (that's effectively what photorec does). Other than that, there's nothing that can be done to recover what has been lost from the corpse you have on your hands... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Sep 22 17:26:20 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2FDEF7F4E for ; Mon, 22 Sep 2014 17:26:20 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 0D6B68F8039 for ; Mon, 22 Sep 2014 15:26:20 -0700 (PDT) X-ASG-Debug-ID: 1411424773-04cb6c50e4c7ca0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id CkRlT8bSvvfHsW8d for ; Mon, 22 Sep 2014 15:26:14 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Am0iAJqgIFR5LM9HPGdsb2JhbABggw5TV7YbBpQ0gV2FagQCAYETFwEGAQEBATg4hAMBAQEDATocIwULCAMOCgkDIg8FJQMHGhMZiB0HDsVQGIV1h2eCEgeESwWGII9vhwaBYopTiwcfgWsrLwGBBySBHgEBAQ Received: from ppp121-44-207-71.lns20.syd7.internode.on.net (HELO dastard) ([121.44.207.71]) by ipmail06.adl6.internode.on.net with ESMTP; 23 Sep 2014 07:56:13 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XWC3f-00057x-7k; Tue, 23 Sep 2014 08:26:11 +1000 Date: Tue, 23 Sep 2014 08:26:11 +1000 From: Dave Chinner To: Ben Myers Cc: linux-fsdevel@vger.kernel.org, tinguely@sgi.com, olaf@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS Message-ID: <20140922222611.GZ4322@dastard> X-ASG-Orig-Subj: Re: [RFC v2] Unicode/UTF-8 support for XFS References: <20140918195650.GI19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140918195650.GI19952@sgi.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1411424773 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9767 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Sep 18, 2014 at 02:56:50PM -0500, Ben Myers wrote: > Hi, > > I'm posting this RFC for Unicode support in XFS on Olaf's behalf, as he > is busy with other projects. This is the second revision of the series. > The first is available here: > > http://oss.sgi.com/archives/xfs/2014-09/msg00169.html > > In response to the initial feedback, the changes in version 2 include: > > * linux-fsdevel in the To: line, > * Updated design notes, > * Separation of the fs-independent trie and support code into utf8norm.ko, > * A mechanism for loading the normalization module only when necessary. > > I'll post the whole series for completeness sake. Many on -fsdevel will > not be interested in the xfs-specific bits, but it may be helpful to > have the full series as an example and for testing purposes. > > First there is a set of kernel bits, then some libxfs/xfsprogs stuff, > and finally a test. (Note: I am not posting the unicode database files > due to their large size. There are scripts to download them from > unicode.org in the relevant commit headers.) > > TODO: Store the unicode version number of the filesystem on disk in the > super block. So, if the filesystem has to store the specific unicode version it was created with so that we know what version to put in trie lookups, again I'll ask: why are we loading the trie as a generic kernel module and not as metadata in the filesystem that is demand paged and cached? i.e. put the entire trie on disk, look up the specific conversion required for the name being compared, and then cache that conversion in memory. This makes repeated lookups much faster because the trie only contains conversions that are in use, the memory footprint is way lower and the conversions are guaranteed to be consistent for the life of the filesystem.... > Here are Olaf's design notes: > > ----------------------------------------------------------------------------- > Unicode/UTF-8 support for XFS > > So we had a customer request proper unicode support... > > > * What does "supporting unicode" actually mean? > > From a text processing point of view, what a filesystem does with > filenames is simple: it stores and retrieves them, and compares them > for equality. It may reject certain byte sequences as invalid > filenames (for example, no filename can contain an ASCII NUL). > > I've been taking it as a given that when a file is created with a > certain byte sequence as its name, then a subsequent directory listing > will contain that same byte sequence among the names listed. > > This leaves comparing names for equality, and in my view this is what > "supporting unicode" revolves about. > > The present state of affairs is that different byte sequences are > different filenames. This amounts to tolerating unicode without > actually supporting it. That's somewhat circular - using your own definition of "supported" to argue that your own definition is the right one.... > To support unicode we have to interpret filenames. What happens when > (part of) a filename cannot be interpreted? We can reject the > filename, interpret the parts we can, or punt and accept it as an > uninterpreted blob. > > Rejecting ill-formed filenames was my first choice, but I came around > on the issue: there are too many ways in which you can end up with > having to deal with ill-formed filenames that would leave a user with > no recourse but to move whatever they're doing to a different > filesystem. Unpacking a tarball with filenames in a different encoding > is an example. You still haven't addressed this: | So we accept invalid unicode in filenames, but only after failing to | parse them? Isn't this a potential vector for exploiting weaknesses | in application filename handling? i.e. unprivileged user writes | specially crafted invalid unicode filename to disk, setuid program | tries to parse it, invalid sequence triggers a buffer overflow bug | in setuid parser? apart from handwaving that userspace has to be able to handle invalid utf-8 already. Why should we let filesystems say "we fully understand and support utf8" and then allow them to accept and propagate invalid utf8 sequences and leave everyone else to have to clean up the mess? > Partial interpretation of an ill-formed filename just strikes me as > the kind of bad idea that most half-houses are. I admit that I have no > stronger objection to this than the fact that it makes the code even > more complicated and fragile. > > Which leaves "blob" as the preferred option by default for coping with > ill-formed filenames. And so can't be case-folded, leading to inconsistent behaviour of case-insensitive filename comparisons. I don't blindly subscribe to the robustness principle of "be liberal with what you accept". Being liberal means accepting malformed junk and then trying to make good. It's a fool's game - we've learnt time and time again that if we don't fully validate string inputs that we have to interpret then someone will find an exploit that utilises malformed strings. I don't think we should expose core kernel code to such structural weaknesses... > When comparing well-formed filenames, the question now becomes which > byte sequences are considered to be alternative spellings of the same > filename. This is where normalization forms come into play, and the > unicode standard has quite a bit to say about the subject. > > If all you're doing is comparison, then choosing NFD over NFC is easy, > because the former is easier to calculate than the latter. > > If you want various spellings of "office" to compare equal, then > picking NFKD over NFD for comparison is also an obvious > choice. (Hand-picking individual compatibility forms is truly a bad > idea.) Ways to spell "office": "o_f_f_i_c_e", "o_f_fi_c_e", and > "o_ffi_c_e", using no ligatures, the fi ligature, or the ffi > ligature. (Some fool thought it a good idea to add these ligatures to > unicode, all we get to decide is how to cope.) Yet normalised strings are only stable and hence comparable if there are no unassigned code points in them. What happens when userspace is not using the same version of unicode as the filesystem and is using newer code points in it's strings? Normalisation fails, right? And as an extension of using normalisation for case-folded comparisons, how do we make case folding work with blobs that can't be normalised? It seems to me that this just leads to the nasty situation where some filenames are case sensitive and some aren't based on what the filesystem thinks is valid utf-8. The worst part is that userspace has no idea that the filesystem is making such distinctions and so behaviour is not at all predictable or expected. This is another point in favour of rejecting invalid utf-8 strings and for keeping the translation tables stable within the filesystem... > The most contentious part is (should be) ignoring the codepoints with > the Default_Ignorable_Code_Point property. I've included the list > below. My argument, such as it is, is that these code points either > have no visible rendering, or in cases like the soft hyphen, are only > conditionally visible. The problem with these (as I see it) is that on > seeing a filename that might contain them you cannot tell whether they > are present. So I propose to ignore them for the purpose of comparing > filenames for equality. Which introduces a non-standard "visibility criterial" for determining what should be or shouldn't be part of the normalised string for comparison. I don't see any real justification for stepping outside the standard unicode normalisation here - just because the user cannot see a character in a specific context does not mean that it is not significant to the application that created it. > Finally, case folding. First of all, it is optional. Then the issue is > that you either go the language-specific route, or simplify the task > by "just" doing a full casefold (C+F, in unicode parlance). Looking > around the net I tend to find that if you're going to do casefolding > at all, then a language-independent full casefold is preferred because > it is the most predictable option. See > http://www.w3.org/TR/charmod-norm/ for an example of that kind of > reasoning. Which says in section 2.4: "Some languages need case-folding to be tailored to meet specific linguistic needs". That implies that the case folding needs to be language aware and hence needs to be tied into the NLS subsystem for handling specific quirks like Turkic. I also note that it says in several places that C+F can result in a folded string of a different length. What happens when that folded string is longer than 255 bytes and hence longer than NAME_MAX? That's a bit of a nasty landmine for pathname string handling functions - developers are going to assume that pathname components are not longer than NAME_MAX, and if we are passing normalised strings around that is not a valid assumption.... > * XFS-specific design notes. ... > If the borgbit (the bit enabling legacy ASCII-based CI in XFS) is set > in the superblock, then case folding is added into the mix. This is > the nfkdicf normalization form mentioned above. It allows for the > creation of case-insensitive filesystems with UTF-8 support. Please don't overload existing superblock feature bits with multiple meanings. ASCII-CI is a stand-alone feature and is not in any way compatible with Unicode: Unicode-CI is a superset of Unicode support. So it really needs two new feature bits for Unicode and Unicode-CI, not just one for unicode. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Sep 22 20:27:05 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 662477F4E for ; Mon, 22 Sep 2014 20:27:05 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 5210330404E for ; Mon, 22 Sep 2014 18:27:05 -0700 (PDT) X-ASG-Debug-ID: 1411435619-04cb6c50e5ce470001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id ZpBOvdCh0WOORy22 for ; Mon, 22 Sep 2014 18:27:00 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ApNDALzLIFR5LM9HPGdsb2JhbABggw6BKoc4rmkGlhGFagICAQEBgRQXAQYBAQEBODiEBAEBBDocIxAIAw4KCSUPBSUDBxoTiD3FdRgYhXWJeQeESwWdFZlGKy+CSgEBAQ Received: from ppp121-44-207-71.lns20.syd7.internode.on.net (HELO dastard) ([121.44.207.71]) by ipmail05.adl6.internode.on.net with ESMTP; 23 Sep 2014 10:56:57 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XWEsa-0005VT-JP; Tue, 23 Sep 2014 11:26:56 +1000 Date: Tue, 23 Sep 2014 11:26:56 +1000 From: Dave Chinner To: Brian Foster Cc: fstests@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [PATCH v2] generic/032: add xfs unwritten extent data corruption reproducer Message-ID: <20140923012656.GP4267@dastard> X-ASG-Orig-Subj: Re: [PATCH v2] generic/032: add xfs unwritten extent data corruption reproducer References: <1411414836-64598-1-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411414836-64598-1-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1411435619 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9772 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words On Mon, Sep 22, 2014 at 03:40:36PM -0400, Brian Foster wrote: > XFS had a data corruption problem where writeback of pages to unwritten > extents would fail to run unwritten extent conversion at I/O completion. > This causes subsequent reads of written, but unconverted regions to > return zeroes. This occurs on sub-page block size filesystems when > writeback contends for the inode lock (e.g., with a file writer). > > Add a test that creates the conditions to reproduce the data corruption > and detect it by looking for unwritten extents after all said extents > have been overwritten. > > Signed-off-by: Brian Foster I still think the error handling for the unwritten extent case is wrong. Failure debug is exactly what $seqres.full is for, so that's where failure information should go. If we detect a failure case and have to abort immediately, then _fail() should be used. And _fail() leaves a message to look at $seqres.full for details. So: > + # Check for unwritten extents. We should have none since we wrote over > + # the entire preallocated region and ran fsync. > + $XFS_IO_PROG \ > + -c "fiemap -v" \ > + $SCRATCH_MNT/file | _filter_fiemap | \ > + grep unwritten >> $seqres.full 2>&1 > + if [ $? == 0 ]; then > + # data corruption! dump the extent list and break out to dump > + # the file content > + $XFS_IO_PROG -c "fiemap -v" $SCRATCH_MNT/file > + break > + fi Can simply be: $XFS_IO_PROG -c "fiemap -v" $SCRATCH_MNT/file | \ tee -a $seqres.full | \ filter_fiemap | grep unwritten [ $? == 0 ] && _fail "Unwritten extents found!" and will result in the output: generic/032 0s.... [failed, exit status 1] - output mismatch (see ....results/generic/032.bad) And results/generic/032.bad will contain: .... Unwritten extents found! (see ..../results/generic/032.full for details) And the complete fiemap output will be in results/generic/032.full. > +done > + > +echo $iters iterations > + > +kill $syncpid > +wait > + > +# clear page cache and dump the file > +_scratch_remount > +hexdump $SCRATCH_MNT/file > + > +_scratch_unmount No need to unmount. check does that when checking the filesystem, and if not the next _require_scratch call will do it.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From cmaiolino@redhat.com Mon Sep 22 22:44:23 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 42F987F4E for ; Mon, 22 Sep 2014 22:44:23 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 308AD304039 for ; Mon, 22 Sep 2014 20:44:19 -0700 (PDT) X-ASG-Debug-ID: 1411443858-04cbb07302d4960001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id T2VjMj7o92zG286F (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 22 Sep 2014 20:44:19 -0700 (PDT) X-Barracuda-Envelope-From: cmaiolino@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8N3htO8005145 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 22 Sep 2014 23:43:55 -0400 Received: from localhost.localdomain (ovpn-113-183.phx2.redhat.com [10.3.113.183]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8N3hqdh003352 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Mon, 22 Sep 2014 23:43:54 -0400 Date: Tue, 23 Sep 2014 00:43:52 -0300 From: Carlos Maiolino To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: Re: beginners project: RENAME_EXCHANGE Message-ID: <20140923034351.GB25353@localhost.localdomain> X-ASG-Orig-Subj: Re: beginners project: RENAME_EXCHANGE Mail-Followup-To: Christoph Hellwig , xfs@oss.sgi.com References: <20140922173545.GA20308@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140922173545.GA20308@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411443859 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Hi, for some time I don't work on anything upstream due being very busy with another stuff, I'm interested in take this project if nobody has objections On Mon, Sep 22, 2014 at 10:35:45AM -0700, Christoph Hellwig wrote: > As people are looking for beginners projects one in a while there's > an easy one at the moment: implement support for the RENAME_EXCHANGE > flag to the renameat2 system call, which swaps the names for two > existing files. Documentation here: > > http://man7.org/linux/man-pages/man2/rename.2.html > > This should mostly be doable by refactoring (or more likely copy & > pasting) the existing rename implementation. xfstests already has test > case for it, although making sure they covering everything would be a > nice extrea. > > (if no one replies to the list I will add it to the wiki after a while) > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs -- Carlos From service@epost.com Mon Sep 22 23:21:10 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=2.2 required=5.0 tests=HTML_MESSAGE, HTML_MIME_NO_HTML_TAG,MIME_HTML_ONLY autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id CBCF97F4E for ; Mon, 22 Sep 2014 23:21:10 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id B73FF304039 for ; Mon, 22 Sep 2014 21:21:10 -0700 (PDT) X-ASG-Debug-ID: 1411446063-04cb6c50e4d35c0001-NocioJ Received: from mail.kopu.ee (154.233.159.217.sta.estpak.ee [217.159.233.154]) by cuda.sgi.com with ESMTP id BurnX448ysd0B2qX for ; Mon, 22 Sep 2014 21:21:04 -0700 (PDT) X-Barracuda-Envelope-From: service@epost.com X-Barracuda-Apparent-Source-IP: 217.159.233.154 Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.kopu.ee (Postfix) with ESMTP id 76DF81E2300 for ; Tue, 23 Sep 2014 07:21:03 +0300 (EEST) Received: from mail.kopu.ee ([127.0.0.1]) by localhost (mail.kopu.ee [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gDx+XjDi8tBr for ; Tue, 23 Sep 2014 07:21:03 +0300 (EEST) Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.kopu.ee (Postfix) with ESMTP id 53BC81E22FF for ; Tue, 23 Sep 2014 07:21:03 +0300 (EEST) Received: from 680client.digitalpound.net (unknown [216.107.148.250]) by mail.kopu.ee (Postfix) with ESMTPA id CBE731E2209 for ; Tue, 23 Sep 2014 07:21:02 +0300 (EEST) MIME-Version: 1.0 From: "mail service center" Reply-To: service@epost.com To: xfs@oss.sgi.com Subject: xfs@oss.sgi.com Periodic Account Verification Content-Type: text/html; charset="windows-1252" X-ASG-Orig-Subj: xfs@oss.sgi.com Periodic Account Verification Content-Transfer-Encoding: quoted-printable X-Mailer: Smart_Send_2_0_138 Date: Mon, 22 Sep 2014 21:20:32 -0700 Message-ID: <2364353832664410921192@WIN-8GU2GFQBBV1> X-Barracuda-Connect: 154.233.159.217.sta.estpak.ee[217.159.233.154] X-Barracuda-Start-Time: 1411446064 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 1.85 X-Barracuda-Spam-Status: No, SCORE=1.85 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC5_MJ1963, HTML_MESSAGE, HTML_MIME_NO_HTML_TAG, MIME_HTML_ONLY, PR0N_SUBJECT, RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9776 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 MIME_HTML_ONLY BODY: Message only has text/html MIME parts 0.00 HTML_MESSAGE BODY: HTML included in message 1.05 HTML_MIME_NO_HTML_TAG HTML-only message, but there is no HTML tag 0.20 PR0N_SUBJECT Subject has letters around special characters (pr0n) 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963

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From bfoster@redhat.com Tue Sep 23 07:42:30 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 57D397F3F for ; Tue, 23 Sep 2014 07:42:30 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 37BFD304053 for ; Tue, 23 Sep 2014 05:42:27 -0700 (PDT) X-ASG-Debug-ID: 1411476145-04cb6c50e4e1ec0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id yGaoQDtUyCU5QuL7 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 23 Sep 2014 05:42:26 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8NCgPmF005327 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 23 Sep 2014 08:42:25 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8NCgOr9004082; Tue, 23 Sep 2014 08:42:25 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 19740120064; Tue, 23 Sep 2014 08:42:24 -0400 (EDT) From: Brian Foster To: fstests@vger.kernel.org Cc: xfs@oss.sgi.com Subject: [PATCH v3] generic/032: add xfs unwritten extent data corruption reproducer Date: Tue, 23 Sep 2014 08:42:24 -0400 X-ASG-Orig-Subj: [PATCH v3] generic/032: add xfs unwritten extent data corruption reproducer Message-Id: <1411476144-51074-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411476146 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 XFS had a data corruption problem where writeback of pages to unwritten extents would fail to run unwritten extent conversion at I/O completion. This causes subsequent reads of written, but unconverted regions to return zeroes. This occurs on sub-page block size filesystems when writeback contends for the inode lock (e.g., with a file writer). Add a test that creates the conditions to reproduce the data corruption and detect it by looking for unwritten extents after all said extents have been overwritten. Signed-off-by: Brian Foster --- v3: - Exit test (_fail) on unwritten extent detection. v2: http://oss.sgi.com/archives/xfs/2014-09/msg00315.html - Converted to generic test. - Use fiemap instead of xfs_bmap. - Added to rw group. - Various fixups: init/clean $tmp, loop syntax, redirect output to $seqres.full, use _scratch_remount. v1: http://oss.sgi.com/archives/xfs/2014-09/msg00296.html tests/generic/032 | 111 ++++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/032.out | 5 +++ tests/generic/group | 1 + 3 files changed, 117 insertions(+) create mode 100755 tests/generic/032 create mode 100644 tests/generic/032.out diff --git a/tests/generic/032 b/tests/generic/032 new file mode 100755 index 0000000..53fb3de --- /dev/null +++ b/tests/generic/032 @@ -0,0 +1,111 @@ +#! /bin/bash +# FS QA Test No. 032 +# +# This test implements a data corruption scenario on XFS filesystems with +# sub-page sized blocks and unwritten extents. Inode lock contention during +# writeback of pages to unwritten extents leads to failure to convert those +# extents on I/O completion. This causes data corruption as unwritten extents +# are always read back as zeroes. +# +#----------------------------------------------------------------------- +# Copyright (c) 2014 Red Hat, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + kill -9 $syncpid > /dev/null 2>&1 + wait + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/punch + +# real QA test starts here +rm -f $seqres.full + +_syncloop() +{ + while [ true ]; do + sync + done +} + +# Modify as appropriate. +_supported_fs generic +_supported_os Linux +_require_scratch +_require_xfs_io_command "falloc" +_require_xfs_io_command "fiemap" + +_scratch_mkfs >/dev/null 2>&1 +_scratch_mount + +# run background sync thread +_syncloop & +syncpid=$! + +for iters in $(seq 1 100) +do + rm -f $SCRATCH_MNT/file + + # create a delalloc block in each page of the first 64k of the file + for pgoff in $(seq 0 0x1000 0xf000); do + offset=$((pgoff + 0xc00)) + $XFS_IO_PROG -f \ + -c "pwrite $offset 0x1" \ + $SCRATCH_MNT/file >> $seqres.full 2>&1 + done + + # preallocate the first 64k and overwite, writing past 64k to contend + # with writeback + $XFS_IO_PROG \ + -c "falloc 0 0x10000" \ + -c "pwrite 0 0x100000" \ + -c "fsync" \ + $SCRATCH_MNT/file >> $seqres.full 2>&1 + + # Check for unwritten extents. We should have none since we wrote over + # the entire preallocated region and ran fsync. + $XFS_IO_PROG -c "fiemap -v" $SCRATCH_MNT/file | \ + tee -a $seqres.full | \ + _filter_fiemap | grep unwritten + [ $? == 0 ] && _fail "Unwritten extents found!" +done + +echo $iters iterations + +kill $syncpid +wait + +# clear page cache and dump the file +_scratch_remount +hexdump $SCRATCH_MNT/file + +status=0 +exit diff --git a/tests/generic/032.out b/tests/generic/032.out new file mode 100644 index 0000000..ca5376d --- /dev/null +++ b/tests/generic/032.out @@ -0,0 +1,5 @@ +QA output created by 032 +100 iterations +0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd +* +0100000 diff --git a/tests/generic/group b/tests/generic/group index bdcfd9d..8e0c22a 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -31,6 +31,7 @@ 026 acl quick auto 027 auto enospc 028 auto quick +032 auto quick rw 053 acl repair auto quick 062 attr udf auto quick 068 other auto freeze dangerous stress -- 1.8.3.1 From thomas.stagge@optimare.de Tue Sep 23 07:54:10 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id EC5F17F3F for ; Tue, 23 Sep 2014 07:54:10 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 8FA3D304053 for ; Tue, 23 Sep 2014 05:54:10 -0700 (PDT) X-ASG-Debug-ID: 1411476841-04bdf003a2f14b0001-NocioJ Received: from mail.optimare.de (survey.optimare.de [82.198.200.60]) by cuda.sgi.com with ESMTP id 6KCsfaOtKxSP45Ql (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 23 Sep 2014 05:54:02 -0700 (PDT) X-Barracuda-Envelope-From: thomas.stagge@optimare.de X-Barracuda-Apparent-Source-IP: 82.198.200.60 Received: from [192.168.0.129] (192.168.0.129) by mail3 (Axigen) with (RC4-SHA encrypted) ESMTPSA id 157908; Tue, 23 Sep 2014 14:54:00 +0200 Message-ID: <54216D67.6090800@optimare.de> Date: Tue, 23 Sep 2014 14:53:59 +0200 From: Thomas Stagge User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: XFS kernal crash Content-Type: multipart/alternative; boundary="------------020208010800020302070003" X-ASG-Orig-Subj: XFS kernal crash X-AxigenVirus-Level: 1 X-AxigenSpam-Level: 4 X-Barracuda-Connect: survey.optimare.de[82.198.200.60] X-Barracuda-Start-Time: 1411476842 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9787 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message This is a multi-part message in MIME format. --------------020208010800020302070003 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 8bit Hello, we have in the last few weeks always problems with the XFS file system. XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) After a certain time there is a kernel crash which looks as follows: September 23 10:17:57 hostname kernel: [1282081.010814] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:17:59 hostname kernel: [1282082.913437] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:01 hostname kernel: [1282084.908582] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:03 hostname kernel: [1282086.691791] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:05 hostname kernel: [1282088.691319] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:07 hostname kernel: [1282090.690182] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:09 hostname kernel: [1282092.673355] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:11 hostname kernel: [1282094.596504] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:13 hostname kernel: [1282096.595971] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:15 hostname kernel: [1282098.595301] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:17 hostname kernel: [1282100.594232] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:19 hostname kernel: [1282102.433262] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:21 hostname kernel: [1282104.412432] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:23 hostname kernel: [1282106.411598] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:25 hostname kernel: [1282108.310740] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:27 hostname kernel: [1282110.289892] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:29 hostname kernel: [1282112.289106] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:31 hostname kernel: [1282114.288247] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:33 hostname kernel: [1282116.215953] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:35 hostname kernel: [1282118.198488] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:37 hostname kernel: [1282120.193686] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:39 hostname kernel: [1282122.288716] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:41 hostname kernel: [1282124.215970] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:43 hostname kernel: [1282126.307031] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:45 hostname kernel: [1282128.306190] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:47 hostname kernel: [1282130.405310] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:49 hostname kernel: [1282132.076611] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:51 hostname kernel: [1282134.027790] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:53 hostname kernel: [1282136.122911] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:55 hostname kernel: [1282138.218032] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:57 hostname kernel: [1282140.145365] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:18:59 hostname kernel: [1282142.140528] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:19:01 hostname kernel: [1282144.091708] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250) September 23 10:19:01 hostname kernel: [1282144.223485] INFO: task kswapd0: 87 blocked for more than 120 seconds. September 23 10:19:01 hostname kernel: [1282144.224156] Not tainted 3.13.0-34-generic # 60-Ubuntu ~ precise1 September 23 10:19:01 hostname kernel: [1282144.224837] "echo 0> / proc / sys / kernel / hung_task_timeout_secs" disables this message. September 23 10:19:01 hostname kernel: [1282144.225597] kswapd0 D ffff88031662a020 0 87 2 0x00000000 September 23 10:19:01 hostname kernel: [1282144.225609] ffff88019500d8f8 0000000000000002 ffff880199d94440 ffff88019500dfd8 September 23 10:19:01 hostname kernel: [1282144.225621] 0000000000014440 0000000000014440 ffff880316cd2fe0 ffff880316f3afe0 September 23 10:19:01 hostname kernel: [1282144.225629] ffff88019500d970 ffff880314119128 ffff88031411912c 00000000ffffffff September 23 10:19:01 hostname kernel: [1282144.225638] Call Trace: September 23 10:19:01 hostname kernel: [1282144.225658] [] schedule + 0x29 / 0x70 September 23 10:19:01 hostname kernel: [1282144.225669] [] schedule_preempt_disabled + 0xe / 0x10 September 23 10:19:01 hostname kernel: [1282144.225680] [] __mutex_lock_slowpath + 0x114 / 0x1b0 September 23 10:19:01 hostname kernel: [1282144.225771] []? xfs_perag_get_tag + 0x41 / 0xf0 [xfs] September 23 10:19:01 hostname kernel: [1282144.225781] [] mutex_lock + 0x23 / 0x37 September 23 10:19:01 hostname kernel: [1282144.225832] [] xfs_reclaim_inodes_ag + 0x2e0 / 0x3a0 [xfs] September 23 10:19:01 hostname kernel: [1282144.225843] []? sched_clock + 0x9 / 0x10 September 23 10:19:01 hostname kernel: [1282144.225852] []? native_smp_send_reschedule + 0x4b / 0x60 September 23 10:19:01 hostname kernel: [1282144.225862] []? ttwu_queue + 0x8D / 0xD0 September 23 10:19:01 hostname kernel: [1282144.225871] []? try_to_wake_up + 0x190 / 0x210 September 23 10:19:01 hostname kernel: [1282144.225879] []? wake_up_process + 0x27 / 0x50 uname -a hostname 3.13.0-34-generic # 60-Ubuntu SMP Wed precise1 ~ August 13 15:55:33 UTC 2014 x86_64 x86_64 x86_64 GNU / Linux xfs_repair -V xfs_repair Version 3.1.7 7 CPUs -> cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 16 model : 4 model name : Quad-Core AMD Opteron(tm) Processor 2376 stepping : 2 microcode : 0x1000086 cpu MHz : 800.000 cache size : 512 KB physical id : 0 siblings : 4 core id : 0 cpu cores : 4 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt hw_pstate npt lbrv svm_lock nrip_save bogomips : 4600.18 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 48 bits physical, 48 bits virtual power management: ts ttp tm stc 100mhzsteps hwpstate cat /proc/meminfo MemTotal: 12304884 kB MemFree: 151816 kB Buffers: 1076 kB Cached: 10328496 kB SwapCached: 0 kB Active: 2658232 kB Inactive: 7766540 kB Active(anon): 42644 kB Inactive(anon): 53636 kB Active(file): 2615588 kB Inactive(file): 7712904 kB Unevictable: 0 kB Mlocked: 0 kB SwapTotal: 4878268 kB SwapFree: 4878268 kB Dirty: 1220 kB Writeback: 0 kB AnonPages: 95728 kB Mapped: 32208 kB Shmem: 352 kB Slab: 1412904 kB SReclaimable: 1188188 kB SUnreclaim: 224716 kB KernelStack: 3512 kB PageTables: 28816 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 11030708 kB Committed_AS: 949792 kB VmallocTotal: 34359738367 kB VmallocUsed: 310312 kB VmallocChunk: 34353030140 kB HardwareCorrupted: 0 kB AnonHugePages: 12288 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 75520 kB DirectMap2M: 3069952 kB DirectMap1G: 9437184 kB cat /proc/mounts rootfs / rootfs rw 0 0 sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0 proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0 udev /dev devtmpfs rw,relatime,size=6108796k,nr_inodes=1527199,mode=755 0 0 devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0 tmpfs /run tmpfs rw,nosuid,noexec,relatime,size=1230492k,mode=755 0 0 /dev/disk/by-uuid/d6821e50-e82b-448d-bc03-9c286ef59c8f / xfs rw,relatime,attr2,inode64,noquota 0 0 none /sys/fs/fuse/connections fusectl rw,relatime 0 0 none /sys/kernel/debug debugfs rw,relatime 0 0 none /sys/kernel/security securityfs rw,relatime 0 0 none /run/lock tmpfs rw,nosuid,nodev,noexec,relatime,size=5120k 0 0 none /run/shm tmpfs rw,nosuid,nodev,relatime 0 0 /dev/sdc1 /extern/data0 xfs rw,relatime,attr2,inode64,noquota 0 0 rpc_pipefs /run/rpc_pipefs rpc_pipefs rw,relatime 0 0 nfsd /proc/fs/nfsd nfsd rw,relatime 0 0 cat /proc/partitions major minor #blocks name 11 0 1048575 sr0 8 0 245175336 sda 8 1 97654784 sda1 8 2 4882432 sda2 8 16 245175336 sdb 8 17 97654784 sdb1 8 18 4882432 sdb2 9 2 97589120 md2 9 1 4878272 md1 8 32 27345461248 sdc 8 33 27345461214 sdc1 xfs_info /dev/md2 Metadaten =/dev/disk/by-uuid/d6821e50-e82b-448d-bc03-9c286ef59c8f isize=256 agcount=4, agsize=6099320 blks = sectsz=512 attr=2 Daten = bsize=4096 Blöcke=24397280, imaxpct=25 = sunit=0 swidth=0 blks Benennung =Version 2 bsize=4096 ascii-ci=0 Protokoll =Intern bsize=4096 Blöcke=11912, Version=2 = sectsz=512 sunit=0 blks, lazy-count=1 Echtzeit =keine extsz=4096 Blöcke=0, rtextents=0 xfs_info /dev/md2 Metadaten =/dev/disk/by-uuid/d6821e50-e82b-448d-bc03-9c286ef59c8f isize=256 agcount=4, agsize=6099320 blks = sectsz=512 attr=2 Daten = bsize=4096 Blöcke=24397280, imaxpct=25 = sunit=0 swidth=0 blks Benennung =Version 2 bsize=4096 ascii-ci=0 Protokoll =Intern bsize=4096 Blöcke=11912, Version=2 = sectsz=512 sunit=0 blks, lazy-count=1 Echtzeit =keine extsz=4096 Blöcke=0, rtextents=0 xfs_info /dev/sdc1 Metadaten =/dev/sdc1 isize=256 agcount=26, agsize=268435455 blks = sectsz=512 attr=2 Daten = bsize=4096 Blöcke=6836365303, imaxpct=5 = sunit=0 swidth=0 blks Benennung =Version 2 bsize=4096 ascii-ci=0 Protokoll =Intern bsize=4096 Blöcke=32768, Version=2 = sectsz=512 sunit=0 blks, lazy-count=0 Echtzeit =keine extsz=4096 Blöcke=0, rtextents=0 Can you help us? Best regards, -- Mit freundlichen Grüssen, Thomas Stagge -------------------------------------- Thomas Stagge, Dipl.Ing.(FH) System Administrator OPTIMARE Systems GmbH Am Luneort 15a 27572 Bremerhaven, Germany T: +49 471 48361-27 F: +49 471 48361-11 M: +49 172 8698575 thomas.stagge@optimare.de Internet: http://www.optimare.de CEO: Dipl.-Ing. Hans J. Stahl; Sitz der Gesellschaft: Bremerhaven; Registergericht: Amtsgericht Bremen HRB 28618 HB --------------020208010800020302070003 Content-Type: text/html; charset=ISO-8859-15 Content-Transfer-Encoding: 8bit

Hello,

we have in the last few weeks always problems with the XFS file system.

XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)


After a certain time there is a kernel crash which looks as follows:
September 23 10:17:57 hostname kernel: [1282081.010814] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:17:59 hostname kernel: [1282082.913437] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:01 hostname kernel: [1282084.908582] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:03 hostname kernel: [1282086.691791] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:05 hostname kernel: [1282088.691319] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:07 hostname kernel: [1282090.690182] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:09 hostname kernel: [1282092.673355] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:11 hostname kernel: [1282094.596504] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:13 hostname kernel: [1282096.595971] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:15 hostname kernel: [1282098.595301] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:17 hostname kernel: [1282100.594232] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:19 hostname kernel: [1282102.433262] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:21 hostname kernel: [1282104.412432] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:23 hostname kernel: [1282106.411598] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:25 hostname kernel: [1282108.310740] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:27 hostname kernel: [1282110.289892] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:29 hostname kernel: [1282112.289106] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:31 hostname kernel: [1282114.288247] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:33 hostname kernel: [1282116.215953] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:35 hostname kernel: [1282118.198488] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:37 hostname kernel: [1282120.193686] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:39 hostname kernel: [1282122.288716] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:41 hostname kernel: [1282124.215970] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:43 hostname kernel: [1282126.307031] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:45 hostname kernel: [1282128.306190] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:47 hostname kernel: [1282130.405310] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:49 hostname kernel: [1282132.076611] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:51 hostname kernel: [1282134.027790] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:53 hostname kernel: [1282136.122911] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:55 hostname kernel: [1282138.218032] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:57 hostname kernel: [1282140.145365] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:18:59 hostname kernel: [1282142.140528] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:19:01 hostname kernel: [1282144.091708] XFS: possible memory allocation deadlock in kmem_alloc (mode: 0x250)
September 23 10:19:01 hostname kernel: [1282144.223485] INFO: task kswapd0: 87 blocked for more than 120 seconds.
September 23 10:19:01 hostname kernel: [1282144.224156] Not tainted 3.13.0-34-generic # 60-Ubuntu ~ precise1
September 23 10:19:01 hostname kernel: [1282144.224837] "echo 0> / proc / sys / kernel / hung_task_timeout_secs" disables this message.
September 23 10:19:01 hostname kernel: [1282144.225597] kswapd0 D ffff88031662a020 0 87 2 0x00000000
September 23 10:19:01 hostname kernel: [1282144.225609] ffff88019500d8f8 0000000000000002 ffff880199d94440 ffff88019500dfd8
September 23 10:19:01 hostname kernel: [1282144.225621] 0000000000014440 0000000000014440 ffff880316cd2fe0 ffff880316f3afe0
September 23 10:19:01 hostname kernel: [1282144.225629] ffff88019500d970 ffff880314119128 ffff88031411912c 00000000ffffffff
September 23 10:19:01 hostname kernel: [1282144.225638] Call Trace:
September 23 10:19:01 hostname kernel: [1282144.225658] [<ffffffff8175b8b9>] schedule + 0x29 / 0x70
September 23 10:19:01 hostname kernel: [1282144.225669] [<ffffffff8175bbde>] schedule_preempt_disabled + 0xe / 0x10
September 23 10:19:01 hostname kernel: [1282144.225680] [<ffffffff8175da14>] __mutex_lock_slowpath + 0x114 / 0x1b0
September 23 10:19:01 hostname kernel: [1282144.225771] [<ffffffffa0218291>]? xfs_perag_get_tag + 0x41 / 0xf0 [xfs]
September 23 10:19:01 hostname kernel: [1282144.225781] [<ffffffff8175dad3>] mutex_lock + 0x23 / 0x37
September 23 10:19:01 hostname kernel: [1282144.225832] [<ffffffffa01c7540>] xfs_reclaim_inodes_ag + 0x2e0 / 0x3a0 [xfs]
September 23 10:19:01 hostname kernel: [1282144.225843] [<ffffffff8101d0b9>]? sched_clock + 0x9 / 0x10
September 23 10:19:01 hostname kernel: [1282144.225852] [<ffffffff81042c9b>]? native_smp_send_reschedule + 0x4b / 0x60
September 23 10:19:01 hostname kernel: [1282144.225862] [<ffffffff8109cf7d>]? ttwu_queue + 0x8D / 0xD0
September 23 10:19:01 hostname kernel: [1282144.225871] [<ffffffff8109f860>]? try_to_wake_up + 0x190 / 0x210
September 23 10:19:01 hostname kernel: [1282144.225879] [<ffffffff8109f947>]? wake_up_process + 0x27 / 0x50

uname -a
hostname 3.13.0-34-generic # 60-Ubuntu SMP Wed precise1 ~ August 13 15:55:33 UTC 2014 x86_64 x86_64 x86_64 GNU / Linux


xfs_repair -V
xfs_repair Version 3.1.7


7 CPUs  -> cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 16
model           : 4
model name      : Quad-Core AMD Opteron(tm) Processor 2376
stepping        : 2
microcode       : 0x1000086
cpu MHz         : 800.000
cache size      : 512 KB
physical id     : 0
siblings        : 4
core id         : 0
cpu cores       : 4
apicid          : 0
initial apicid  : 0
fpu             : yes
fpu_exception   : yes
cpuid level     : 5
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt hw_pstate npt lbrv svm_lock nrip_save
bogomips        : 4600.18
TLB size        : 1024 4K pages
clflush size    : 64
cache_alignment : 64
address sizes   : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate


cat /proc/meminfo
MemTotal:       12304884 kB
MemFree:          151816 kB
Buffers:            1076 kB
Cached:         10328496 kB
SwapCached:            0 kB
Active:          2658232 kB
Inactive:        7766540 kB
Active(anon):      42644 kB
Inactive(anon):    53636 kB
Active(file):    2615588 kB
Inactive(file):  7712904 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:       4878268 kB
SwapFree:        4878268 kB
Dirty:              1220 kB
Writeback:             0 kB
AnonPages:         95728 kB
Mapped:            32208 kB
Shmem:               352 kB
Slab:            1412904 kB
SReclaimable:    1188188 kB
SUnreclaim:       224716 kB
KernelStack:        3512 kB
PageTables:        28816 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    11030708 kB
Committed_AS:     949792 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      310312 kB
VmallocChunk:   34353030140 kB
HardwareCorrupted:     0 kB
AnonHugePages:     12288 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:       75520 kB
DirectMap2M:     3069952 kB
DirectMap1G:     9437184 kB


 cat /proc/mounts
rootfs / rootfs rw 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
udev /dev devtmpfs rw,relatime,size=6108796k,nr_inodes=1527199,mode=755 0 0
devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
tmpfs /run tmpfs rw,nosuid,noexec,relatime,size=1230492k,mode=755 0 0
/dev/disk/by-uuid/d6821e50-e82b-448d-bc03-9c286ef59c8f / xfs rw,relatime,attr2,inode64,noquota 0 0
none /sys/fs/fuse/connections fusectl rw,relatime 0 0
none /sys/kernel/debug debugfs rw,relatime 0 0
none /sys/kernel/security securityfs rw,relatime 0 0
none /run/lock tmpfs rw,nosuid,nodev,noexec,relatime,size=5120k 0 0
none /run/shm tmpfs rw,nosuid,nodev,relatime 0 0
/dev/sdc1 /extern/data0 xfs rw,relatime,attr2,inode64,noquota 0 0
rpc_pipefs /run/rpc_pipefs rpc_pipefs rw,relatime 0 0
nfsd /proc/fs/nfsd nfsd rw,relatime 0 0


cat /proc/partitions
major minor  #blocks  name

  11        0    1048575 sr0
   8        0  245175336 sda
   8        1   97654784 sda1
   8        2    4882432 sda2
   8       16  245175336 sdb
   8       17   97654784 sdb1
   8       18    4882432 sdb2
   9        2   97589120 md2
   9        1    4878272 md1
   8       32 27345461248 sdc
   8       33 27345461214 sdc1


xfs_info /dev/md2
Metadaten =/dev/disk/by-uuid/d6821e50-e82b-448d-bc03-9c286ef59c8f isize=256    agcount=4, agsize=6099320 blks
          =                       sectsz=512   attr=2
Daten     =                       bsize=4096   Blöcke=24397280, imaxpct=25
          =                       sunit=0      swidth=0 blks
Benennung =Version 2              bsize=4096   ascii-ci=0
Protokoll =Intern                 bsize=4096   Blöcke=11912, Version=2
          =                       sectsz=512   sunit=0 blks, lazy-count=1
Echtzeit  =keine                  extsz=4096   Blöcke=0, rtextents=0


 xfs_info /dev/md2
Metadaten =/dev/disk/by-uuid/d6821e50-e82b-448d-bc03-9c286ef59c8f isize=256    agcount=4, agsize=6099320 blks
          =                       sectsz=512   attr=2
Daten     =                       bsize=4096   Blöcke=24397280, imaxpct=25
          =                       sunit=0      swidth=0 blks
Benennung =Version 2              bsize=4096   ascii-ci=0
Protokoll =Intern                 bsize=4096   Blöcke=11912, Version=2
          =                       sectsz=512   sunit=0 blks, lazy-count=1
Echtzeit  =keine                  extsz=4096   Blöcke=0, rtextents=0


xfs_info /dev/sdc1
Metadaten =/dev/sdc1              isize=256    agcount=26, agsize=268435455 blks
          =                       sectsz=512   attr=2
Daten     =                       bsize=4096   Blöcke=6836365303, imaxpct=5
          =                       sunit=0      swidth=0 blks
Benennung =Version 2              bsize=4096   ascii-ci=0
Protokoll =Intern                 bsize=4096   Blöcke=32768, Version=2
          =                       sectsz=512   sunit=0 blks, lazy-count=0
Echtzeit  =keine                  extsz=4096   Blöcke=0, rtextents=0


Can you help us?


Best regards,

-- 
Mit freundlichen Grüssen,

Thomas Stagge
--------------------------------------

Thomas Stagge, Dipl.Ing.(FH)
System Administrator

OPTIMARE Systems GmbH
Am Luneort 15a
27572 Bremerhaven, Germany

T: +49 471 48361-27
F: +49 471 48361-11
M: +49 172 8698575

 

thomas.stagge@optimare.de
Internet: http://www.optimare.de

CEO: Dipl.-Ing. Hans J. Stahl; Sitz der Gesellschaft: Bremerhaven; Registergericht: Amtsgericht Bremen HRB 28618 HB
--------------020208010800020302070003-- From olaf@sgi.com Tue Sep 23 08:01:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id DC6E87F3F for ; Tue, 23 Sep 2014 08:01:26 -0500 (CDT) Received: from xmail.sgi.com (pv-excas2-dc21.corp.sgi.com [137.38.106.9]) by relay1.corp.sgi.com (Postfix) with ESMTP id B95E38F8050; Tue, 23 Sep 2014 06:01:23 -0700 (PDT) Received: from [144.253.208.75] (144.253.208.75) by xmail.sgi.com (137.38.106.6) with Microsoft SMTP Server (TLS) id 14.3.195.1; Tue, 23 Sep 2014 08:01:23 -0500 Message-ID: <54216F20.1090302@sgi.com> Date: Tue, 23 Sep 2014 15:01:20 +0200 From: Olaf Weber Organization: SGI User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.1 MIME-Version: 1.0 To: Andi Kleen , Ben Myers CC: , , Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS References: <20140918195650.GI19952@sgi.com> <87lhpbhfgg.fsf@tassilo.jf.intel.com> In-Reply-To: <87lhpbhfgg.fsf@tassilo.jf.intel.com> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 8bit X-Originating-IP: [144.253.208.75] On 22-09-14 16:55, Andi Kleen wrote: > Ben Myers writes: >> >> Strings are normalized using a trie that stores the relevant >> information. The trie itself is about 250kB in size, and lives in a >> separate module. > > So 250kB bloat -- and what does this fix exactly? > > Someone putting random ligatures into their file names and expecting > the file to be the same as before. Can't they just not do that? I like the 'office' example because it is applicable to English and easy to explain. Once you move away from English examples are much easier to come by. Take a Dutch name like 'Renée Soutendijk'. These two forms both spell Renée in UTF-8: 0x52 0x65 0x6E 0xC3 0xA9 0x65 0x52 0x65 0x6E 0x65 0xCC 0x81 0x65 The difference is LATIN SMALL LETTER E WITH ACUTE (U+00E9) LATIN SMALL LETTER E (U+0065) COMBINING ACUTE ACCENT (U+0301) and corresponds to the difference between NFC and NFD. These two forms both spell Soutendijk in UTF-8: 0x53 0x6F 0x75 0x74 0x65 0x6E 0x64 0x69 0x6A 0x6B 0x53 0x6F 0x75 0x74 0x65 0x6E 0x64 0xC4 0xB3 0x6B The difference is LATIN SMALL LETTER I (U+0069) LATIN SMALL LETTER J (U+006A) LATIN SMALL LIGATURE IJ (U+0133) and the former is the compatibility decomposition of the latter, the 'K' in NFKC/NFKD. Do accented letters count as random ligatures that people should just not use? The bulk of the table deals with Korean. Olaf -- Olaf Weber SGI Phone: +31(0)30-6696796 Veldzigt 2b Fax: +31(0)30-6696799 Technical Lead 3454 PW de Meern Vnet: 955-6796 Storage Software The Netherlands Email: olaf@sgi.com From dgc@oss.sgi.com Tue Sep 23 08:30:29 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=NO_RELAYS autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: by oss.sgi.com (Postfix, from userid 10266) id 5C0777F47; Tue, 23 Sep 2014 08:30:29 -0500 (CDT) From: xfs@oss.sgi.com To: xfs@oss.sgi.com Subject: [XFS updates] XFS development tree branch, xfs-shift-extents-rework, created. xfs-for-linus-3.17-rc3-6-g8b5279e X-Git-Refname: refs/heads/xfs-shift-extents-rework X-Git-Reftype: branch X-Git-Oldrev: 0000000000000000000000000000000000000000 X-Git-Newrev: 8b5279e33f241a074a9c8649bba8f77a2167b798 Message-Id: <20140923133029.5C0777F47@oss.sgi.com> Date: Tue, 23 Sep 2014 08:30:29 -0500 (CDT) 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, xfs-shift-extents-rework has been created at 8b5279e33f241a074a9c8649bba8f77a2167b798 (commit) - Log ----------------------------------------------------------------- commit 8b5279e33f241a074a9c8649bba8f77a2167b798 Author: Brian Foster Date: Tue Sep 23 15:39:05 2014 +1000 xfs: only writeback and truncate pages for the freed range xfs_free_file_space() only affects the range of the file for which space is being freed. It currently writes and truncates the page cache from the start offset of the free to EOF. Modify xfs_free_file_space() to write back and truncate page cache of just the range being freed. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner commit f71721d061e872a39b2680d13f309c1eb6893438 Author: Brian Foster Date: Tue Sep 23 15:39:05 2014 +1000 xfs: writeback and inval. file range to be shifted by collapse The collapse range operation currently writes the entire file before starting the collapse to avoid changes in the in-core extent list due to writeback causing the extent count to change. Now that collapse range is fsb based rather than extent index based it can sustain changes in the extent list during the shift sequence without disruption. Modify xfs_collapse_file_space() to writeback and invalidate pages associated with the range of the file to be shifted. xfs_free_file_space() currently has similar behavior, but the space free need only affect the region of the file that is freed and this could change in the future. Also update the comments to reflect the current implementation. We retain the eofblocks trim permanently as a best option for dealing with delalloc extents. We don't shift delalloc extents because this scenario only occurs with post-eof preallocation (since data must be flushed such that the cache can be invalidated and data can be shifted). That means said space must also be initialized before being shifted into the accessible region of the file only to be immediately truncated off as the last part of the collapse. In other words, the eofblocks trim will happen anyways, we just run it first to ensure the file remains in a consistent state throughout the collapse. Finally, detect and fail explicitly in the event of a delalloc extent during the extent shift. The implementation does not support delalloc extents and the caller is expected to prevent this scenario in advance as is done by collapse. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner commit a979bdfea10a61dce0055b4d416d640f4f5f495e Author: Brian Foster Date: Tue Sep 23 15:39:04 2014 +1000 xfs: refactor single extent shift into xfs_bmse_shift_one() helper xfs_bmap_shift_extents() has a variety of conditions and error checks that make the logic difficult to follow and indent heavy. Refactor the loop body of this function into a new xfs_bmse_shift_one() helper. This simplifies the error checks, eliminates index decrement on merge hack by pushing the index increment down into the helper, and makes the code more readable by reducing multiple levels of indentation. This is a code refactor only. The behavior of extent shift and collapse range is not modified. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner commit ddb19e3180fa42362a04e86771d758be1de0bb13 Author: Brian Foster Date: Tue Sep 23 15:38:09 2014 +1000 xfs: refactor shift-by-merge into xfs_bmse_merge() helper The extent shift mechanism in xfs_bmap_shift_extents() is complicated and handles several different, non-deterministic scenarios. These include extent shifts, extent merges and potential btree updates in either of the former scenarios. Refactor the code to be more linear and readable. The loop logic in xfs_bmap_shift_extents() and some initial error checking is adjusted slightly. The associated btree lookup and update/delete operations are condensed into single blocks of code. This reduces the number of btree-specific blocks and facilitates the separation of the merge operation into a new xfs_bmse_merge() and xfs_bmse_can_merge() helpers. This is a code refactor only. The behavior of extent shift and collapse range is not modified. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner commit 2c845f5a5f238f42376b6551a7f7716952c8f509 Author: Brian Foster Date: Tue Sep 23 15:37:09 2014 +1000 xfs: track collapse via file offset rather than extent index The collapse range implementation uses a transaction per extent shift. The progress of the overall operation is tracked via the current extent index of the in-core extent list. This is racy because the ilock must be dropped and reacquired for each transaction according to locking and log reservation rules. Therefore, writeback to prior regions of the file is possible and can change the extent count. This changes the extent to which the current index refers and causes the collapse to fail mid operation. To avoid this problem, the entire file is currently written back before the collapse operation starts. To eliminate the need to flush the entire file, use the file offset (fsb) to track the progress of the overall extent shift operation rather than the extent index. Modify xfs_bmap_shift_extents() to unconditionally convert the start_fsb parameter to an extent index and return the file offset of the extent where the shift left off, if further extents exist. The bulk of ths function can remain based on extent index as ilock is held by the caller. xfs_collapse_file_space() now uses the fsb output as the starting point for the subsequent shift. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner commit 0d085a529b427d97710e6a41f8a4f23e1757cd12 Author: Dave Chinner Date: Tue Sep 23 15:36:27 2014 +1000 xfs: ensure WB_SYNC_ALL writeback handles partial pages correctly XFS has been having trouble with stray delayed allocation extents beyond EOF for a long time. Recent changes to the collapse range code has triggered erroneous EBUSY errors on page invalidtion for block size smaller than page size filesystems. These have been caused by dirty buffers beyond EOF on a partial page which do not get written to disk during a sync. The issue is that write-ahead in xfs_cluster_write() finds such a partial page and handles it by leaving the page dirty but pushing it into a writeback state. This used to work just fine, as the write_cache_pages() code would then find the dirty partial page in the next mapping tree lookup as the dirty tag is still set. Unfortunately, when we moved to a mark and sweep approach to writeback to fix other writeback sync issues, we broken this. THe act of marking the page as under writeback now clears the TOWRITE tag in the radix tree, even though the page is still dirty. This causes the TOWRITE tag to be cleared, and hence the next lookup on the mapping tree does not find the dirty partial page and so doesn't try to write it again. This same writeback bug was found recently in ext4 and fixed in commit 1c8349a ("ext4: fix data integrity sync in ordered mode") without communication to the wider filesystem community. We can use exactly the same fix here so the TOWRITE flag is not cleared on partial page writes. cc: stable@vger.kernel.org # dependent on 1c8349a17137b93f0a83f276c764a6df1b9a116e Root-cause-found-by: Brian Foster Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Signed-off-by: Dave Chinner ----------------------------------------------------------------------- hooks/post-receive -- XFS development tree From dgc@oss.sgi.com Tue Sep 23 08:30:47 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=NO_RELAYS autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: by oss.sgi.com (Postfix, from userid 10266) id BB95A7F51; Tue, 23 Sep 2014 08:30:47 -0500 (CDT) From: xfs@oss.sgi.com To: xfs@oss.sgi.com Subject: [XFS updates] XFS development tree branch, xfs-misc-fixes-for-3.18-2, created. v3.16-11814-g2ebff7b X-Git-Refname: refs/heads/xfs-misc-fixes-for-3.18-2 X-Git-Reftype: branch X-Git-Oldrev: 0000000000000000000000000000000000000000 X-Git-Newrev: 2ebff7bbd785c86e12956388b9e6f6bb8ea5d21e Message-Id: <20140923133047.BB95A7F51@oss.sgi.com> Date: Tue, 23 Sep 2014 08:30:47 -0500 (CDT) 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, xfs-misc-fixes-for-3.18-2 has been created at 2ebff7bbd785c86e12956388b9e6f6bb8ea5d21e (commit) - Log ----------------------------------------------------------------- commit 2ebff7bbd785c86e12956388b9e6f6bb8ea5d21e Author: Dave Chinner Date: Tue Sep 23 22:55:00 2014 +1000 xfs: flush entire last page of old EOF on truncate up On a sub-page sized filesystem, truncating a mapped region down leaves us in a world of hurt. We truncate the pagecache, zeroing the newly unused tail, then punch blocks out from under the page. If we then truncate the file back up immediately, we expose that unmapped hole to a dirty page mapped into the user application, and that's where it all goes wrong. In truncating the page cache, we avoid unmapping the tail page of the cache because it still contains valid data. The problem is that it also contains a hole after the truncate, but nobody told the mm subsystem that. Therefore, if the page is dirty before the truncate, we'll never get a .page_mkwrite callout after we extend the file and the application writes data into the hole on the page. Hence when we come to writing that region of the page, it has no blocks and no delayed allocation reservation and hence we toss the data away. This patch adds code to the truncate up case to solve it, by ensuring the partial page at the old EOF is always cleaned after we do any zeroing and move the EOF upwards. We can't actually serialise the page writeback and truncate against page faults (yes, that problem AGAIN) so this is really just a best effort and assumes it is extremely unlikely that someone is concurrently writing to the page at the EOF while extending the file. Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Signed-off-by: Dave Chinner commit 7abbb8f928e5b7cea1edd077131b2ace665c6712 Author: Dave Chinner Date: Tue Sep 23 16:20:11 2014 +1000 xfs: xfs_swap_extent_flush can be static Fix sparse warning introduced by commit 4ef897a ("xfs: flush both inodes in xfs_swap_extents"). Signed-off-by: Fengguang Wu Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner commit 02cc18764c753befcdc163d1bc668a6599a54585 Author: Dave Chinner Date: Tue Sep 23 16:15:45 2014 +1000 xfs: xfs_buf_write_fail_rl_state can be static Fix sparse warning introduced by commit ac8809f9 ("xfs: abort metadata writeback on permanent errors"). Signed-off-by: Fengguang Wu Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner commit ea95961df714f7fc446aa4bedfc61510ed1b59cc Author: Fengguang Wu Date: Tue Sep 23 16:11:43 2014 +1000 xfs: xfs_rtget_summary can be static Fix sparse warning introduced by commit afabfd3 ("xfs: combine xfs_rtmodify_summary and xfs_rtget_summary"). Signed-off-by: Fengguang Wu Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner commit e3cf17962a757e59fed2cbcbda6373c1b35a35dd Author: Fabian Frederick Date: Tue Sep 23 16:05:55 2014 +1000 xfs: remove second xfs_quota.h inclusion in xfs_icache.c xfs_quota.h was included twice. Signed-off-by: Fabian Frederick Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner commit fb040131561a6b34cefb92cdf598218104abeda0 Author: Eric Sandeen Date: Tue Sep 23 16:05:32 2014 +1000 xfs: don't ASSERT on corrupt ftype xfs_dir3_data_get_ftype() gets the file type off disk, but ASSERTs if it's invalid: ASSERT(type < XFS_DIR3_FT_MAX); We shouldn't ASSERT on bad values read from disk. V3 dirs are CRC-protected, but V2 dirs + ftype are not. Signed-off-by: Eric Sandeen Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner commit 8af3dcd3c89aef10375bdd79d5f336b22b57487c Author: Dave Chinner Date: Tue Sep 23 15:57:59 2014 +1000 xfs: xlog_cil_force_lsn doesn't always wait correctly When running a tight mount/unmount loop on an older kernel, RedHat QE found that unmount would occasionally hang in xfs_buf_unpin_wait() on the superblock buffer. Tracing and other debug work by Eric Sandeen indicated that it was hanging on the writing of the superblock during unmount immediately after logging the superblock counters in a synchronous transaction. Further debug indicated that the synchronous transaction was not waiting for completion correctly, and we narrowed it down to xlog_cil_force_lsn() returning NULLCOMMITLSN and hence not pushing the transaction in the iclog buffer to disk correctly. While this unmount superblock write code is now very different in mainline kernels, the xlog_cil_force_lsn() code is identical, and it was bisected to the backport of commit f876e44 ("xfs: always do log forces via the workqueue"). This commit made the CIL push asynchronous for log forces and hence exposed a race condition that couldn't occur on a synchronous push. Essentially, the xlog_cil_force_lsn() relied implicitly on the fact that the sequence push would be complete by the time xlog_cil_push_now() returned, resulting in the context being pushed being in the committing list. When it was made asynchronous, it was recognised that there was a race condition in detecting whether an asynchronous push has started or not and code was added to handle it. Unfortunately, the fix was not quite right and left a race condition where it it would detect an empty CIL while a push was in progress before the context had been added to the committing list. This was incorrectly seen as a "nothing to do" condition and so would tell xfs_log_force_lsn() that there is nothing to wait for, and hence it would push the iclogbufs in memory. The fix is simple, but explaining the logic and the race condition is a lot more complex. The fix is to add the context to the committing list before we start emptying the CIL. This allows us to detect the difference between an empty "do nothing" push and a push that has not started by adding a discrete "emptying the CIL" state to avoid the transient, incorrect "empty" condition that the (unchanged) waiting code was seeing. Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Signed-off-by: Dave Chinner ----------------------------------------------------------------------- hooks/post-receive -- XFS development tree From dgc@oss.sgi.com Tue Sep 23 08:31:05 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=NO_RELAYS autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: by oss.sgi.com (Postfix, from userid 10266) id 270587F55; Tue, 23 Sep 2014 08:31:05 -0500 (CDT) From: xfs@oss.sgi.com To: xfs@oss.sgi.com Subject: [XFS updates] XFS development tree branch, for-next, updated. xfs-for-linus-3.17-rc3-27-g33044dc X-Git-Refname: refs/heads/for-next X-Git-Reftype: branch X-Git-Oldrev: a4241aebe924136d6838fd516da6daa727fcd728 X-Git-Newrev: 33044dc408e6e6bb7f270c0a2e12598ef5592987 Message-Id: <20140923133105.270587F55@oss.sgi.com> Date: Tue, 23 Sep 2014 08:31:05 -0500 (CDT) 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-next has been updated 33044dc Merge branch 'xfs-misc-fixes-for-3.18-2' into for-next 2ebff7b xfs: flush entire last page of old EOF on truncate up 7abbb8f xfs: xfs_swap_extent_flush can be static 02cc187 xfs: xfs_buf_write_fail_rl_state can be static ea95961 xfs: xfs_rtget_summary can be static e3cf179 xfs: remove second xfs_quota.h inclusion in xfs_icache.c fb04013 xfs: don't ASSERT on corrupt ftype 8af3dcd xfs: xlog_cil_force_lsn doesn't always wait correctly f6d31f4 Merge branch 'xfs-shift-extents-rework' into for-next 8b5279e xfs: only writeback and truncate pages for the freed range f71721d xfs: writeback and inval. file range to be shifted by collapse a979bdf xfs: refactor single extent shift into xfs_bmse_shift_one() helper ddb19e3 xfs: refactor shift-by-merge into xfs_bmse_merge() helper 2c845f5 xfs: track collapse via file offset rather than extent index 0d085a5 xfs: ensure WB_SYNC_ALL writeback handles partial pages correctly from a4241aebe924136d6838fd516da6daa727fcd728 (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 33044dc408e6e6bb7f270c0a2e12598ef5592987 Merge: f6d31f4 2ebff7b Author: Dave Chinner Date: Tue Sep 23 22:55:51 2014 +1000 Merge branch 'xfs-misc-fixes-for-3.18-2' into for-next commit f6d31f4b0462898896ba68e491662958ce37d095 Merge: a4241ae 8b5279e Author: Dave Chinner Date: Tue Sep 23 15:51:14 2014 +1000 Merge branch 'xfs-shift-extents-rework' into for-next ----------------------------------------------------------------------- Summary of changes: fs/xfs/libxfs/xfs_bmap.c | 365 ++++++++++++++++++++++++++++-------------- fs/xfs/libxfs/xfs_bmap.h | 7 +- fs/xfs/libxfs/xfs_da_format.c | 1 - fs/xfs/xfs_aops.c | 16 +- fs/xfs/xfs_bmap_util.c | 56 ++++--- fs/xfs/xfs_buf_item.c | 2 +- fs/xfs/xfs_icache.c | 1 - fs/xfs/xfs_iops.c | 30 ++++ fs/xfs/xfs_log_cil.c | 47 ++++-- fs/xfs/xfs_rtalloc.c | 2 +- 10 files changed, 360 insertions(+), 167 deletions(-) hooks/post-receive -- XFS development tree From tinguely@dhcp-128-162-232-117.americas.sgi.com Tue Sep 23 10:43:12 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 405CF7F3F for ; Tue, 23 Sep 2014 10:43:12 -0500 (CDT) Received: from dhcp-128-162-232-117.americas.sgi.com (dhcp-128-162-232-117.americas.sgi.com [128.162.232.117]) by relay3.corp.sgi.com (Postfix) with ESMTP id BD023AC006 for ; Tue, 23 Sep 2014 08:43:08 -0700 (PDT) Received: from dhcp-128-162-232-117.americas.sgi.com (localhost [127.0.0.1]) by dhcp-128-162-232-117.americas.sgi.com (8.14.5/8.14.5) with ESMTP id s8NFhAEC002931 for ; Tue, 23 Sep 2014 10:43:10 -0500 (CDT) (envelope-from tinguely@dhcp-128-162-232-117.americas.sgi.com) Received: (from tinguely@localhost) by dhcp-128-162-232-117.americas.sgi.com (8.14.5/8.14.5/Submit) id s8NFhAaV002930; Tue, 23 Sep 2014 10:43:10 -0500 (CDT) (envelope-from tinguely) Message-Id: <20140923154140.315778789@sgi.com> User-Agent: quilt/0.51-1 Date: Tue, 23 Sep 2014 10:41:29 -0500 From: Mark Tingueyl To: xfs@oss.sgi.com Subject: [PATCH] xfsprogs: fix xfsctl manual XFS_IOC_FSSETXATTR valid fields Content-Disposition: inline; filename=xfsprogs-project-id-XFS_IOC_FSSETXATTR.patch The xfsctl manual page fails to mention that fsx_projid is a setable field. Signed-off-by: Mark Tinguely --- man/man3/xfsctl.3 | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) Index: b/man/man3/xfsctl.3 =================================================================== --- a/man/man3/xfsctl.3 +++ b/man/man3/xfsctl.3 @@ -245,9 +245,10 @@ Set additional attributes associated wit The final argument points to a variable of type .BR "struct fsxattr" , but only the following fields are used in this call: -.B fsx_xflags +.BR fsx_xflags , +.B fsx_extsize and -.BR fsx_extsize . +.BR fsx_projid . The .B fsx_xflags realtime file bit and the file's extent size may be changed only From sandeen@sandeen.net Tue Sep 23 11:04:05 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id EE8687F3F for ; Tue, 23 Sep 2014 11:04:05 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id CADF4304032 for ; Tue, 23 Sep 2014 09:04:02 -0700 (PDT) X-ASG-Debug-ID: 1411488238-04cbb07303f55a0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id rkERuXpCX7Op55E6 for ; Tue, 23 Sep 2014 09:03:58 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 2370F63BECCA; Tue, 23 Sep 2014 11:03:58 -0500 (CDT) Message-ID: <542199F1.4040207@sandeen.net> Date: Tue, 23 Sep 2014 11:04:01 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Mark Tingueyl , xfs@oss.sgi.com Subject: Re: [PATCH] xfsprogs: fix xfsctl manual XFS_IOC_FSSETXATTR valid fields References: <20140923154140.315778789@sgi.com> X-ASG-Orig-Subj: Re: [PATCH] xfsprogs: fix xfsctl manual XFS_IOC_FSSETXATTR valid fields In-Reply-To: <20140923154140.315778789@sgi.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1411488238 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9791 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/23/14 10:41 AM, Mark Tingueyl wrote: > The xfsctl manual page fails to mention that fsx_projid is a > setable field. > > Signed-off-by: Mark Tinguely Reviewed-by: Eric Sandeen p.s. You might want to fix your name in your email client, Mr. Tingueyl ;) > --- > man/man3/xfsctl.3 | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > Index: b/man/man3/xfsctl.3 > =================================================================== > --- a/man/man3/xfsctl.3 > +++ b/man/man3/xfsctl.3 > @@ -245,9 +245,10 @@ Set additional attributes associated wit > The final argument points to a variable of type > .BR "struct fsxattr" , > but only the following fields are used in this call: > -.B fsx_xflags > +.BR fsx_xflags , > +.B fsx_extsize > and > -.BR fsx_extsize . > +.BR fsx_projid . > The > .B fsx_xflags > realtime file bit and the file's extent size may be changed only > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs > From olaf@sgi.com Tue Sep 23 11:13:18 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 74F227F3F for ; Tue, 23 Sep 2014 11:13:18 -0500 (CDT) Received: from xmail.sgi.com (pv-excas1-dc21.corp.sgi.com [137.38.106.7]) by relay3.corp.sgi.com (Postfix) with ESMTP id B450FAC004; Tue, 23 Sep 2014 09:13:14 -0700 (PDT) Received: from [134.15.0.72] (134.15.0.72) by xmail.sgi.com (137.38.106.6) with Microsoft SMTP Server (TLS) id 14.3.195.1; Tue, 23 Sep 2014 11:13:14 -0500 Message-ID: <54219C17.3090104@sgi.com> Date: Tue, 23 Sep 2014 18:13:11 +0200 From: Olaf Weber Organization: SGI User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.1 MIME-Version: 1.0 To: Andi Kleen , Ben Myers CC: , , Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS References: <20140918195650.GI19952@sgi.com> <87lhpbhfgg.fsf@tassilo.jf.intel.com> <20140922184145.GH4482@sgi.com> <20140922192958.GJ4120@two.firstfloor.org> In-Reply-To: <20140922192958.GJ4120@two.firstfloor.org> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [134.15.0.72] On 22-09-14 21:29, Andi Kleen wrote: >>> So 250kB bloat -- and what does this fix exactly? >> >> We're trying to address the size issue by only loading the module when > > I'm not sure this is really addressing it. You only pay the space cost if you use it, similar to the nls tables. >> it's needed, but yeah it's big. Open to suggestions on how best to deal >> with that. I understand the sticker shock. > > I don't even understand why you need the whole table. > > You want to not compare some special symbols, and a few other symbols > are equivalent to others. But most symbols are only identical to themselves. > > Couldn't you have a much smaller table that only expresses > the exceptions? The trie tells you whether a given sequence of bytes is a UTF-8 encoded unicode codepoint, and if so, it gives the unicode version in which the codepoint was assigned an interpretation (if any), the canonical combining class (required for normalization), and the decomposition and case fold (if any). A big part of the table does decompositions for Korean: eliminating the Hangul decompositions removes 156320 bytes, leaving 89936 bytes. Hangul decomposition uses two or three unicode code points and a terminating NUL byte in a UTF-8 string. The code points each require a three-byte UTF-8 sequence, so the total is 7 bytes per 2-part decomposition, and 10 bytes per 3-part decomposition. With that in mind, the 156320 additional bytes spent on Hangul are accounted for as follows: 22344 bytes : 11172 leaves * 2 byte leaf size 2793 bytes : 399 2-part decompositions at 7 bytes each 107730 bytes : 10773 3-part decompositions at 10 bytes each This adds up to 132867 bytes of data, with the remainder, 23453 bytes, spent on additional internal trie nodes. >> As far as telling the customer "don't do that", my guess is that they >> would just go elsewhere. There are several other options for >> filesystems that support unicode. > > They could put some code into their user app that generates > an unique representation. This assumes a single app, and that they control the source of that app. Olaf -- Olaf Weber SGI Phone: +31(0)30-6696796 Veldzigt 2b Fax: +31(0)30-6696799 Technical Lead 3454 PW de Meern Vnet: 955-6796 Storage Software The Netherlands Email: olaf@sgi.com From eflorac@intellique.com Tue Sep 23 11:39:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 3C3A77F3F for ; Tue, 23 Sep 2014 11:39:25 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id C92B4AC004 for ; Tue, 23 Sep 2014 09:39:24 -0700 (PDT) X-ASG-Debug-ID: 1411490362-04bdf003a0fedd0001-NocioJ Received: from mail1.g1.pair.com (mail1.g1.pair.com [66.39.3.162]) by cuda.sgi.com with ESMTP id YutR1CPUeFuoJ301 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 23 Sep 2014 09:39:22 -0700 (PDT) X-Barracuda-Envelope-From: eflorac@intellique.com X-Barracuda-Apparent-Source-IP: 66.39.3.162 Received: from localhost (localhost [127.0.0.1]) by mail1.g1.pair.com (Postfix) with SMTP id BC4C8308A1 for ; Tue, 23 Sep 2014 12:39:21 -0400 (EDT) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) by mail1.g1.pair.com (Postfix) with ESMTPSA id E8C0030A24 for ; Tue, 23 Sep 2014 12:39:20 -0400 (EDT) Date: Tue, 23 Sep 2014 18:41:49 +0200 From: Emmanuel Florac To: xfs@oss.sgi.com Subject: compiling xfs-progs 3.2.x Message-ID: <20140923184149.05a57dba@harpe.intellique.com> X-ASG-Orig-Subj: compiling xfs-progs 3.2.x Organization: Intellique X-Mailer: Claws Mail 3.10.0 (GTK+ 2.24.20; i486-slackware-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail1.g1.pair.com[66.39.3.162] X-Barracuda-Start-Time: 1411490362 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9792 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi list, xfs-progs 3.1.x compile easily, however I can't get around compiling 3.2.x (debian 7.6) : ./configure ./configure: line 2098: AC_PROG_LIBTOOL: command not found ./configure: line 2204: syntax error near unexpected token `xfsprogs' ./configure: line 2204: `AC_PACKAGE_GLOBALS(xfsprogs)' Any hint on where to start would be appreciated. Libtool version is the same as testing and unstable (2.4.2). Thanks, -- ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From sandeen@sandeen.net Tue Sep 23 12:25:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 44B3229DF9 for ; Tue, 23 Sep 2014 12:25:38 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 226098F8052 for ; Tue, 23 Sep 2014 10:25:34 -0700 (PDT) X-ASG-Debug-ID: 1411493132-04cbb07302fa260001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id aJxQaOYC7vlXRpbu for ; Tue, 23 Sep 2014 10:25:32 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 0B4D863BECCA; Tue, 23 Sep 2014 12:25:31 -0500 (CDT) Message-ID: <5421AD0F.4040109@sandeen.net> Date: Tue, 23 Sep 2014 12:25:35 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Emmanuel Florac , xfs@oss.sgi.com Subject: Re: compiling xfs-progs 3.2.x References: <20140923184149.05a57dba@harpe.intellique.com> X-ASG-Orig-Subj: Re: compiling xfs-progs 3.2.x In-Reply-To: <20140923184149.05a57dba@harpe.intellique.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1411493132 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9793 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/23/14 11:41 AM, Emmanuel Florac wrote: > > Hi list, > xfs-progs 3.1.x compile easily, however I can't get around compiling > 3.2.x (debian 7.6) : > > ./configure > ./configure: line 2098: AC_PROG_LIBTOOL: command not found > ./configure: line 2204: syntax error near unexpected token `xfsprogs' > ./configure: line 2204: `AC_PACKAGE_GLOBALS(xfsprogs)' > > Any hint on where to start would be appreciated. Libtool version is the > same as testing and unstable (2.4.2). > > Thanks, > I'm not at all autoconf savvy, so just guessing here. there were very few changes to configure.ac since v3.1.11: diff --git a/configure.ac b/configure.ac index b968977..ae17c68 100644 --- a/configure.ac +++ b/configure.ac @@ -1,4 +1,4 @@ -AC_INIT([xfsprogs], [3.1.11]) +AC_INIT([xfsprogs], [3.2.0-alpha2]) AC_PREREQ(2.50) AC_CONFIG_AUX_DIR([.]) AC_CONFIG_MACRO_DIR([m4]) @@ -112,12 +112,14 @@ AC_HAVE_FIEMAP AC_HAVE_PREADV AC_HAVE_SYNC_FILE_RANGE AC_HAVE_BLKID_TOPO($enable_blkid) +AC_HAVE_READDIR AC_CHECK_SIZEOF([long]) AC_CHECK_SIZEOF([char *]) AC_TYPE_PSINT AC_TYPE_PSUNSIGNED AC_TYPE_U32 +AC_TYPE_UMODE_T AC_MANUAL_FORMAT AC_CONFIG_FILES([include/builddefs]) if you do a make realclean & re-make, does it help? (if you check out v3.1.11 and do the same, does it still build?) -Eric From roger@filmlight.ltd.uk Tue Sep 23 13:34:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 0C44E29DF9 for ; Tue, 23 Sep 2014 13:34:26 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 90297AC007 for ; Tue, 23 Sep 2014 11:34:25 -0700 (PDT) X-ASG-Debug-ID: 1411497260-04cbb07304fda40001-NocioJ Received: from a.mx.filmlight.ltd.uk (a.mx.filmlight.ltd.uk [77.107.81.250]) by cuda.sgi.com with SMTP id vF9YNc75bLkbQ4Ad for ; Tue, 23 Sep 2014 11:34:20 -0700 (PDT) X-Barracuda-Envelope-From: roger@filmlight.ltd.uk X-Barracuda-Apparent-Source-IP: 77.107.81.250 Received: (dqd 32277 invoked from network); 23 Sep 2014 18:34:20 -0000 Received: from montana.filmlight.ltd.uk (HELO ?10.44.0.132?) (roger@10.44.0.132) by a.mx.filmlight.ltd.uk with SMTP; 23 Sep 2014 18:34:20 -0000 Subject: Re: [PATCH 07a/13] xfsprogs: add trie generator for UTF-8. From: Roger Willcocks X-ASG-Orig-Subj: Re: [PATCH 07a/13] xfsprogs: add trie generator for UTF-8. To: Ben Myers Cc: linux-fsdevel@vger.kernel.org, tinguely@sgi.com, olaf@sgi.com, xfs@oss.sgi.com In-Reply-To: <20140919160612.GF4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140918203114.GN4482@sgi.com> <20140919160612.GF4482@sgi.com> Content-Type: text/plain Date: Tue, 23 Sep 2014 19:34:19 +0100 Message-Id: <1411497259.4842.163.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.12.3 (2.12.3-19.el5) Content-Transfer-Encoding: 7bit X-Barracuda-Connect: a.mx.filmlight.ltd.uk[77.107.81.250] X-Barracuda-Start-Time: 1411497260 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9795 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, 2014-09-19 at 11:06 -0500, Ben Myers wrote: > +#define AGE_NAME "DerivedAge.txt" > +#define CCC_NAME "DerivedCombiningClass.txt" > +#define PROP_NAME "DerivedCoreProperties.txt" > +#define DATA_NAME "UnicodeData.txt" > +#define FOLD_NAME "CaseFolding.txt" > +#define NORM_NAME "NormalizationCorrections.txt" > +#define TEST_NAME "NormalizationTest.txt" Is there a reason why you're using multiple text-based data files (and hand-parsing them) when there's an xml formatted flat file available ? http://www.unicode.org/Public/UCD/latest/ucdxml/ And a 2nd question - why does the trie need to encode "the the unicode version in which the codepoint was assigned an interpretation" ? -- Roger Willcocks From bpm@sgi.com Tue Sep 23 13:57:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9294F29DF9 for ; Tue, 23 Sep 2014 13:57:21 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay2.corp.sgi.com (Postfix) with ESMTP id 5E460304051; Tue, 23 Sep 2014 11:57:21 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 202804266DC; Tue, 23 Sep 2014 13:57:21 -0500 (CDT) Date: Tue, 23 Sep 2014 13:57:21 -0500 From: Ben Myers To: Dave Chinner Cc: linux-fsdevel@vger.kernel.org, tinguely@sgi.com, olaf@sgi.com, xfs@oss.sgi.com Subject: Re: [PATCH 07/10] xfs: add trie generator and supporting code for UTF-8. Message-ID: <20140923185721.GV19952@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140918201518.GJ4482@sgi.com> <20140922205714.GN4267@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140922205714.GN4267@dastard> User-Agent: Mutt/1.5.20 (2009-06-14) On Tue, Sep 23, 2014 at 06:57:14AM +1000, Dave Chinner wrote: > On Thu, Sep 18, 2014 at 03:15:19PM -0500, Ben Myers wrote: > > From: Olaf Weber > > > > mkutf8data.c is the source for a program that generates utf8data.h, which > > contains the trie that utf8norm.c uses. The trie is generated from the > > Unicode 7.0.0 data files. The format of the utf8data[] table is described > > in utf8norm.c. > > > > Supporting functions for UTF-8 normalization are in utf8norm.c with the > > header utf8norm.h. Two normalization forms are supported: nfkdi and nfkdicf. > > > > nfkdi: > > - Apply unicode normalization form NFKD. > > - Remove any Default_Ignorable_Code_Point. > > > > nfkdicf: > > - Apply unicode normalization form NFKD. > > - Remove any Default_Ignorable_Code_Point. > > - Apply a full casefold (C + F). > > > > For the purposes of the code, a string is valid UTF-8 if: > > > > - The values encoded are 0x1..0x10FFFF. > > - The surrogate codepoints 0xD800..0xDFFFF are not encoded. > > - The shortest possible encoding is used for all values. > > > > The supporting functions work on null-terminated strings (utf8 prefix) and > > on length-limited strings (utf8n prefix). > > > > Signed-off-by: Olaf Weber > > > > --- > > [v2: the trie is now separated into utf8norm.ko; > > utf8version is now a function and exported; > > introduced CONFIG_XFS_UTF8. -bpm] > > --- > > fs/xfs/Kconfig | 8 + > > fs/xfs/Makefile | 2 +- > > fs/xfs/utf8norm/Makefile | 37 + > > fs/xfs/utf8norm/mkutf8data.c | 3239 ++++++++++++++++++++++++++++++++++++++++++ > > fs/xfs/utf8norm/utf8norm.c | 649 +++++++++ > > fs/xfs/utf8norm/utf8norm.h | 116 ++ > > Again, nothing XFS specific here. It's being built as a separate > module and the only thing that XFS uses are exported functions, so > it really should be generic library code.... I'll get this moved to lib/ as you suggested elsewhere in the thread. Thanks, Ben From eflorac@intellique.com Tue Sep 23 14:28:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id C783829DF9 for ; Tue, 23 Sep 2014 14:28:37 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 3E06BAC006 for ; Tue, 23 Sep 2014 12:28:34 -0700 (PDT) X-ASG-Debug-ID: 1411500511-04cb6c50e4f7980001-NocioJ Received: from smtp5-g21.free.fr (smtp5-g21.free.fr [212.27.42.5]) by cuda.sgi.com with ESMTP id B8mNlFzCI1FzdVDw (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 23 Sep 2014 12:28:32 -0700 (PDT) X-Barracuda-Envelope-From: eflorac@intellique.com X-Barracuda-Apparent-Source-IP: 212.27.42.5 Received: from galadriel.home (unknown [82.235.234.79]) by smtp5-g21.free.fr (Postfix) with ESMTP id E98C5D480B1; Tue, 23 Sep 2014 21:28:13 +0200 (CEST) Date: Tue, 23 Sep 2014 21:28:48 +0200 From: Emmanuel Florac To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: compiling xfs-progs 3.2.x Message-ID: <20140923212848.1e540bc6@galadriel.home> X-ASG-Orig-Subj: Re: compiling xfs-progs 3.2.x In-Reply-To: <5421AD0F.4040109@sandeen.net> References: <20140923184149.05a57dba@harpe.intellique.com> <5421AD0F.4040109@sandeen.net> Organization: Intellique X-Mailer: Claws Mail 3.10.0 (GTK+ 2.24.20; i486-slackware-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: smtp5-g21.free.fr[212.27.42.5] X-Barracuda-Start-Time: 1411500512 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9797 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Le Tue, 23 Sep 2014 12:25:35 -0500 vous =C3=A9criviez: > if you do a make realclean & re-make, does it help?=20 Crap, that was it :) Thank you so much Eric. --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From bfoster@redhat.com Tue Sep 23 14:29:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7B61929DF9 for ; Tue, 23 Sep 2014 14:29:19 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 5A28C8F8039 for ; Tue, 23 Sep 2014 12:29:16 -0700 (PDT) X-ASG-Debug-ID: 1411500541-04cbb07301101060001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id s6N2I42zC6bWDsPz (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 23 Sep 2014 12:29:02 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8NJT04E028479 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Tue, 23 Sep 2014 15:29:01 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8NJT0ri020635 for ; Tue, 23 Sep 2014 15:29:00 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id AB412120064; Tue, 23 Sep 2014 15:28:58 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [RFC PATCH] xfs: borrow indirect blocks from freed extent when available Date: Tue, 23 Sep 2014 15:28:58 -0400 X-ASG-Orig-Subj: [RFC PATCH] xfs: borrow indirect blocks from freed extent when available Message-Id: <1411500538-6831-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411500541 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com xfs_bmap_del_extent() handles extent removal from the in-core and on-disk extent lists. When removing a delalloc range, it updates the indirect block reservation appropriately based on the removal. It currently enforces that the new indirect block reservation is less than or equal to the original. This is normally the case in all situations except for when the removed range creates a hole in a single delalloc extent, thus splitting a single delalloc extent in two. The indirect block reservation is divided evenly between the two new extents in this scenario. However, it is possible with small enough extents to split an indlen==1 extent into two such slightly smaller extents. This leaves one extent with 0 indirect blocks and leads to assert failures in other areas (e.g., xfs_bunmapi() if the extent happens to be removed). Refactor xfs_bunmapi() to make the updates that must be consistent against the inode (e.g., delalloc block counter, quota reservation) right before the extent is deleted. Move the sb block counter update after the extent is deleted and update xfs_bmap_del_extent() to steal some blocks from the freed extent if a larger overall indirect reservation is required by the extent removal. Signed-off-by: Brian Foster --- Hi all, I'm seeing the following assert more frequently with fsx and the recent xfs_free_file_space() changes (at least on 1k fsb fs'): XFS: Assertion failed: startblockval(del.br_startblock) > 0, file: fs/xfs/libxfs/xfs_bmap.c, line: 5281 This occurs for the reason described in the commit log description. This is a quick experiment I wanted to test to verify the problem goes away (so far, so good). Very lightly tested so far. I'm not too fond of changing br_blockcount like this. It seems like a potential landmine. Alternative approaches could be to kill the assert if we think indlen==0 extents is not a huge problem in this scenario, update the counters independently in xfs_bmap_del_extent() to get the needed blocks or pass a separate output parameter rather than messing with br_blockcount (e.g., '*ofreedblks'). The latter might mean we could just move the entire hunk that updates the inode/quota and whatnot rather than splitting it up. I wanted to put this on the list for comments. Thoughts? Other ideas? Thanks. Brian fs/xfs/libxfs/xfs_bmap.c | 64 ++++++++++++++++++++++++++++++------------------ 1 file changed, 40 insertions(+), 24 deletions(-) diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 86df952..1858e6b 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -4969,6 +4969,11 @@ xfs_bmap_del_extent( temp2 = xfs_bmap_worst_indlen(ip, temp2); new.br_startblock = nullstartblock((int)temp2); da_new = temp + temp2; + /* pull blocks from extent to make up the difference */ + while (da_new > da_old && del->br_blockcount) { + del->br_blockcount--; + da_new--; + } while (da_new > da_old) { if (temp) { temp--; @@ -5277,9 +5282,37 @@ xfs_bunmapi( goto nodelete; } } + + /* + * If it's the case where the directory code is running + * with no block reservation, and the deleted block is in + * the middle of its extent, and the resulting insert + * of an extent would cause transformation to btree format, + * then reject it. The calling code will then swap + * blocks around instead. + * We have to do this now, rather than waiting for the + * conversion to btree format, since the transaction + * will be dirty. + */ + if (!wasdel && xfs_trans_get_block_res(tp) == 0 && + XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS && + XFS_IFORK_NEXTENTS(ip, whichfork) >= /* Note the >= */ + XFS_IFORK_MAXEXT(ip, whichfork) && + del.br_startoff > got.br_startoff && + del.br_startoff + del.br_blockcount < + got.br_startoff + got.br_blockcount) { + error = -ENOSPC; + goto error0; + } + + /* + * Unreserve quota and update realtime free space, if + * appropriate. If delayed allocation, update the inode delalloc + * counter now and wait to update the sb counters as + * xfs_bmap_del_extent() might need to borrow some blocks. + */ if (wasdel) { ASSERT(startblockval(del.br_startblock) > 0); - /* Update realtime/data freespace, unreserve quota */ if (isrt) { xfs_filblks_t rtexts; @@ -5291,8 +5324,6 @@ xfs_bunmapi( ip, -((long)del.br_blockcount), 0, XFS_QMOPT_RES_RTBLKS); } else { - xfs_icsb_modify_counters(mp, XFS_SBS_FDBLOCKS, - (int64_t)del.br_blockcount, 0); (void)xfs_trans_reserve_quota_nblks(NULL, ip, -((long)del.br_blockcount), 0, XFS_QMOPT_RES_REGBLKS); @@ -5303,32 +5334,17 @@ xfs_bunmapi( XFS_BTCUR_BPRV_WASDEL; } else if (cur) cur->bc_private.b.flags &= ~XFS_BTCUR_BPRV_WASDEL; - /* - * If it's the case where the directory code is running - * with no block reservation, and the deleted block is in - * the middle of its extent, and the resulting insert - * of an extent would cause transformation to btree format, - * then reject it. The calling code will then swap - * blocks around instead. - * We have to do this now, rather than waiting for the - * conversion to btree format, since the transaction - * will be dirty. - */ - if (!wasdel && xfs_trans_get_block_res(tp) == 0 && - XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS && - XFS_IFORK_NEXTENTS(ip, whichfork) >= /* Note the >= */ - XFS_IFORK_MAXEXT(ip, whichfork) && - del.br_startoff > got.br_startoff && - del.br_startoff + del.br_blockcount < - got.br_startoff + got.br_blockcount) { - error = -ENOSPC; - goto error0; - } + error = xfs_bmap_del_extent(ip, tp, &lastx, flist, cur, &del, &tmp_logflags, whichfork); logflags |= tmp_logflags; if (error) goto error0; + + if (!isrt && wasdel) + xfs_icsb_modify_counters(mp, XFS_SBS_FDBLOCKS, + (int64_t) del.br_blockcount, 0); + bno = del.br_startoff - 1; nodelete: /* -- 1.8.3.1 From andi@firstfloor.org Tue Sep 23 15:02:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E47D329DF9 for ; Tue, 23 Sep 2014 15:02:20 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 70C1BAC006 for ; Tue, 23 Sep 2014 13:02:17 -0700 (PDT) X-ASG-Debug-ID: 1411502533-04cb6c50e5f9650001-NocioJ Received: from one.firstfloor.org (one.firstfloor.org [193.170.194.197]) by cuda.sgi.com with ESMTP id u0MWESpKdvae4WRV (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 23 Sep 2014 13:02:14 -0700 (PDT) X-Barracuda-Envelope-From: andi@firstfloor.org X-Barracuda-Apparent-Source-IP: 193.170.194.197 Received: by one.firstfloor.org (Postfix, from userid 503) id BF2FC869B6; Tue, 23 Sep 2014 22:02:12 +0200 (CEST) Date: Tue, 23 Sep 2014 22:02:12 +0200 From: Andi Kleen To: Olaf Weber Cc: Andi Kleen , Ben Myers , linux-fsdevel@vger.kernel.org, tinguely@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS Message-ID: <20140923200212.GA15923@two.firstfloor.org> X-ASG-Orig-Subj: Re: [RFC v2] Unicode/UTF-8 support for XFS References: <20140918195650.GI19952@sgi.com> <87lhpbhfgg.fsf@tassilo.jf.intel.com> <54216F20.1090302@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <54216F20.1090302@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: one.firstfloor.org[193.170.194.197] X-Barracuda-Start-Time: 1411502534 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9797 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- > The bulk of the table deals with Korean. Is a table of Korean exceptions 250k too? If not please find some other way to compress this. I'm sure there is redundancy somewhere. -Andi From andi@firstfloor.org Tue Sep 23 15:15:47 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 2C1AE29DF9 for ; Tue, 23 Sep 2014 15:15:47 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 0BE8A304032 for ; Tue, 23 Sep 2014 13:15:43 -0700 (PDT) X-ASG-Debug-ID: 1411503340-04bdf003a110a670001-NocioJ Received: from one.firstfloor.org (one.firstfloor.org [193.170.194.197]) by cuda.sgi.com with ESMTP id mZTA34kEFsGX1Baa (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 23 Sep 2014 13:15:42 -0700 (PDT) X-Barracuda-Envelope-From: andi@firstfloor.org X-Barracuda-Apparent-Source-IP: 193.170.194.197 Received: by one.firstfloor.org (Postfix, from userid 503) id 8258C869B6; Tue, 23 Sep 2014 22:15:40 +0200 (CEST) Date: Tue, 23 Sep 2014 22:15:40 +0200 From: Andi Kleen To: Olaf Weber Cc: Andi Kleen , Ben Myers , linux-fsdevel@vger.kernel.org, tinguely@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS Message-ID: <20140923201540.GB15923@two.firstfloor.org> X-ASG-Orig-Subj: Re: [RFC v2] Unicode/UTF-8 support for XFS References: <20140918195650.GI19952@sgi.com> <87lhpbhfgg.fsf@tassilo.jf.intel.com> <20140922184145.GH4482@sgi.com> <20140922192958.GJ4120@two.firstfloor.org> <54219C17.3090104@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <54219C17.3090104@sgi.com> User-Agent: Mutt/1.5.20 (2009-06-14) X-Barracuda-Connect: one.firstfloor.org[193.170.194.197] X-Barracuda-Start-Time: 1411503341 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9797 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- > You only pay the space cost if you use it, similar to the nls tables. The way Linux module loading works these things are loaded by default, not when someone needs it. So no, you (or rather every unfortunate Linux XFS user) would pay it always, unless you black list the module or rebuild the kernel. > A big part of the table does decompositions for Korean: eliminating > the Hangul decompositions removes 156320 bytes, leaving 89936 bytes. Are there regular ranges or other redundancies in the Korean encoding that could be used to compress paths? Doing some basic research other people already answered this: Please use the ICU or google tables referenced below. Apparently smaller is possible too, but 40-50k seems more reasonable. I'm just gonna make the claim that whatever performance you get from a larger table is dwarfed by the cache miss overhead. ---- http://macchiato.com/unicode/normalization_footprint.htm http://www.macchiato.com/unicode/nfc-faq NFC normalization requires large tables, right? Like many other cases, there is a tradeoff between size and performance. You can use very small tables, at some cost in performance. (Even there, the actual performance cost depends on how often normalization needs to be invoked, as discussed above.) To see an analysis of the situation, see Normalization Footprint. It is a bit out of date, but gives a sense of the magnitude. For comparison, ICU's optimized tables for NFC take 44 kB (UTF-16) and Google's optimized tables for NFC take 46 kB (UTF-8). -Andi From bpm@sgi.com Tue Sep 23 15:45:14 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 0197B29DF9 for ; Tue, 23 Sep 2014 15:45:14 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay3.corp.sgi.com (Postfix) with ESMTP id 765E7AC007; Tue, 23 Sep 2014 13:45:13 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 186974266DC; Tue, 23 Sep 2014 15:45:13 -0500 (CDT) Date: Tue, 23 Sep 2014 15:45:13 -0500 From: Ben Myers To: Andi Kleen Cc: Olaf Weber , linux-fsdevel@vger.kernel.org, tinguely@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS Message-ID: <20140923204512.GI4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <87lhpbhfgg.fsf@tassilo.jf.intel.com> <20140922184145.GH4482@sgi.com> <20140922192958.GJ4120@two.firstfloor.org> <54219C17.3090104@sgi.com> <20140923201540.GB15923@two.firstfloor.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140923201540.GB15923@two.firstfloor.org> User-Agent: Mutt/1.5.20 (2009-06-14) Hi Andi, On Tue, Sep 23, 2014 at 10:15:40PM +0200, Andi Kleen wrote: > > You only pay the space cost if you use it, similar to the nls tables. > > The way Linux module loading works these things are loaded by default, > not when someone needs it. > > So no, you (or rather every unfortunate Linux XFS user) would pay it always, > unless you black list the module or rebuild the kernel. The suggestion to use symbol_get was made in response to the initial post of the series. In my testing the normalization module did not load until I attempted to mount a filesystem which required it. Seems to work ok. See patch 10, "xfs: implement demand load of utf8norm.ko". Thanks, Ben From david@fromorbit.com Tue Sep 23 16:58:27 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id D70C529DF9 for ; Tue, 23 Sep 2014 16:58:26 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 5302AAC004 for ; Tue, 23 Sep 2014 14:58:26 -0700 (PDT) X-ASG-Debug-ID: 1411509500-04cbb07303108820001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id 7E8smsQ5TM95Ictg for ; Tue, 23 Sep 2014 14:58:20 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtdFAP/rIVR5LM9HPGdsb2JhbABggw6BKoc4rWsBAQEBAQaWEoVqAgIBAQGBDBcBBgEBAQE4OIQDAQEBAwEnExwjBQsIAw4KCSUPBSUDBxoTiDYHwncBFxiFdYktTQeDLoEdBYYilnmZSCsvgQeBQwEBAQ Received: from ppp121-44-207-71.lns20.syd7.internode.on.net (HELO dastard) ([121.44.207.71]) by ipmail04.adl6.internode.on.net with ESMTP; 24 Sep 2014 07:28:19 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XWY6C-0000Z9-W4; Wed, 24 Sep 2014 07:58:17 +1000 Date: Wed, 24 Sep 2014 07:58:16 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [RFC PATCH] xfs: borrow indirect blocks from freed extent when available Message-ID: <20140923215816.GC4322@dastard> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: borrow indirect blocks from freed extent when available References: <1411500538-6831-1-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411500538-6831-1-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411509500 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9801 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Sep 23, 2014 at 03:28:58PM -0400, Brian Foster wrote: > xfs_bmap_del_extent() handles extent removal from the in-core and > on-disk extent lists. When removing a delalloc range, it updates the > indirect block reservation appropriately based on the removal. It > currently enforces that the new indirect block reservation is less than > or equal to the original. This is normally the case in all situations > except for when the removed range creates a hole in a single delalloc > extent, thus splitting a single delalloc extent in two. > > The indirect block reservation is divided evenly between the two new > extents in this scenario. However, it is possible with small enough > extents to split an indlen==1 extent into two such slightly smaller > extents. This leaves one extent with 0 indirect blocks and leads to > assert failures in other areas (e.g., xfs_bunmapi() if the extent > happens to be removed). I had long suspected we had an issue in this code, but was never able to nail down a reproducer that triggered it. Do you have a reproducer, or did you find this by reading/tracing the code? > Refactor xfs_bunmapi() to make the updates that must be consistent > against the inode (e.g., delalloc block counter, quota reservation) > right before the extent is deleted. Move the sb block counter update > after the extent is deleted and update xfs_bmap_del_extent() to steal > some blocks from the freed extent if a larger overall indirect > reservation is required by the extent removal. > > Signed-off-by: Brian Foster > --- > > Hi all, > > I'm seeing the following assert more frequently with fsx and the recent > xfs_free_file_space() changes (at least on 1k fsb fs'): > > XFS: Assertion failed: startblockval(del.br_startblock) > 0, file: fs/xfs/libxfs/xfs_bmap.c, line: 5281 > > This occurs for the reason described in the commit log description. This > is a quick experiment I wanted to test to verify the problem goes away > (so far, so good). Very lightly tested so far. I suspect it's also the cause of these occasional assert failures that I see: XFS: Assertion failed: tp->t_blk_res_used <= tp->t_blk_res, file: fs/xfs/xfs_trans.c, line: 327 during delalloc conversion because there wasn't a space reservation for the blocks allocated (i.e. indlen was zero) and so we overrun the transaction block reservation. > I'm not too fond of changing br_blockcount like this. It seems like a > potential landmine. Alternative approaches could be to kill the assert > if we think indlen==0 extents is not a huge problem in this scenario, A delalloc extent always needs a reservation.... > update the counters independently in xfs_bmap_del_extent() to get the > needed blocks or pass a separate output parameter rather than messing > with br_blockcount (e.g., '*ofreedblks'). The latter might mean we could > just move the entire hunk that updates the inode/quota and whatnot > rather than splitting it up. > > I wanted to put this on the list for comments. Thoughts? Other ideas? > Thanks. > > Brian > > fs/xfs/libxfs/xfs_bmap.c | 64 ++++++++++++++++++++++++++++++------------------ > 1 file changed, 40 insertions(+), 24 deletions(-) > > diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c > index 86df952..1858e6b 100644 > --- a/fs/xfs/libxfs/xfs_bmap.c > +++ b/fs/xfs/libxfs/xfs_bmap.c > @@ -4969,6 +4969,11 @@ xfs_bmap_del_extent( > temp2 = xfs_bmap_worst_indlen(ip, temp2); > new.br_startblock = nullstartblock((int)temp2); > da_new = temp + temp2; > + /* pull blocks from extent to make up the difference */ > + while (da_new > da_old && del->br_blockcount) { > + del->br_blockcount--; > + da_new--; > + } > while (da_new > da_old) { > if (temp) { > temp--; So this is the crux of the fix, right? The block stealing from the deleted extent? I have no objections to doing this given that we already munge the indirect reservations inteh loop below, but I think we should make this cleaner and more understandable. i.e. refactor the indlen adjustment code into a helper, and integrate the block stealing into the existing adjustment loop? > @@ -5277,9 +5282,37 @@ xfs_bunmapi( > goto nodelete; > } > } > + > + /* > + * If it's the case where the directory code is running > + * with no block reservation, and the deleted block is in > + * the middle of its extent, and the resulting insert > + * of an extent would cause transformation to btree format, > + * then reject it. The calling code will then swap > + * blocks around instead. > + * We have to do this now, rather than waiting for the > + * conversion to btree format, since the transaction > + * will be dirty. > + */ > + if (!wasdel && xfs_trans_get_block_res(tp) == 0 && > + XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS && > + XFS_IFORK_NEXTENTS(ip, whichfork) >= /* Note the >= */ > + XFS_IFORK_MAXEXT(ip, whichfork) && > + del.br_startoff > got.br_startoff && > + del.br_startoff + del.br_blockcount < > + got.br_startoff + got.br_blockcount) { > + error = -ENOSPC; > + goto error0; > + } > + > + /* > + * Unreserve quota and update realtime free space, if > + * appropriate. If delayed allocation, update the inode delalloc > + * counter now and wait to update the sb counters as > + * xfs_bmap_del_extent() might need to borrow some blocks. > + */ > if (wasdel) { > ASSERT(startblockval(del.br_startblock) > 0); > - /* Update realtime/data freespace, unreserve quota */ > if (isrt) { > xfs_filblks_t rtexts; > Perhaps this should be separated into it's own patch that is applied first? It doesn't seem to be directly related to the accounting fix... Cheers, Dave. -- Dave Chinner david@fromorbit.com From diane@caltech.edu Tue Sep 23 17:03:04 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 6718929DF9 for ; Tue, 23 Sep 2014 17:03:04 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 4711E8F8054 for ; Tue, 23 Sep 2014 15:03:04 -0700 (PDT) X-ASG-Debug-ID: 1411509779-04bdf003a110f3f0001-NocioJ Received: from chaos.caltech.edu (chaos.caltech.edu [131.215.34.119]) by cuda.sgi.com with ESMTP id GeCfvKZEcy0TT04h (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO) for ; Tue, 23 Sep 2014 15:02:59 -0700 (PDT) X-Barracuda-Envelope-From: diane@caltech.edu X-Barracuda-Apparent-Source-IP: 131.215.34.119 Received: from [50.1.221.254] (helo=myrada.localnet) by chaos.caltech.edu with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.80) (envelope-from ) id 1XWYAl-0005CP-3e for xfs@oss.sgi.com; Tue, 23 Sep 2014 15:02:59 -0700 From: Diane Trout To: xfs@oss.sgi.com Subject: Corrupted file system Date: Tue, 23 Sep 2014 15:02:57 -0700 X-ASG-Orig-Subj: Corrupted file system Message-ID: <5839367.DyqsVHbRuQ@myrada> User-Agent: KMail/4.14 (Linux/3.14-2-amd64; KDE/4.14.0; x86_64; ; ) MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Barracuda-Connect: chaos.caltech.edu[131.215.34.119] X-Barracuda-Start-Time: 1411509779 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9801 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi, I had a raid failure at work that ended up corrupting an xfs filesystem the tail of the xfs_repair command looks like the below. I was able to generate a metadata dump but is there a point to making it available? It does crash repeatedly at the same place (I'm not subscribed to the list, so could you reply directly as well?) disconnected inode 15276, moving to lost+found disconnected inode 15277, moving to lost+found disconnected inode 15278, moving to lost+found disconnected inode 15279, moving to lost+found disconnected inode 15280, moving to lost+found disconnected inode 15281, moving to lost+found disconnected inode 15282, moving to lost+found disconnected inode 15283, moving to lost+found disconnected inode 15284, moving to lost+found disconnected inode 15286, moving to lost+found disconnected inode 15287, moving to lost+found disconnected inode 15288, moving to lost+found disconnected inode 15289, moving to lost+found disconnected inode 15290, moving to lost+found disconnected inode 15291, moving to lost+found disconnected inode 15292, moving to lost+found disconnected inode 15293, moving to lost+found disconnected inode 15294, moving to lost+found disconnected inode 15295, moving to lost+found disconnected inode 15360, moving to lost+found corrupt dinode 15360, extent total = 1, nblocks = 0. This is a bug. Please capture the filesystem metadata with xfs_metadump and report it to xfs@oss.sgi.com. cache_node_purge: refcount was 1, not zero (node=0x7f369883e6f0) fatal error -- 117 - couldn't iget disconnected inode From scaron@umich.edu Tue Sep 23 17:12:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 53DC729DF9 for ; Tue, 23 Sep 2014 17:12:26 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 316FE8F804B for ; Tue, 23 Sep 2014 15:12:26 -0700 (PDT) X-ASG-Debug-ID: 1411510343-04cbb073011090d0001-NocioJ Received: from mail-wi0-f171.google.com (mail-wi0-f171.google.com [209.85.212.171]) by cuda.sgi.com with ESMTP id rE14Z9Vxog1xz3Vr (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Tue, 23 Sep 2014 15:12:24 -0700 (PDT) X-Barracuda-Envelope-From: scaron@umich.edu X-Barracuda-Apparent-Source-IP: 209.85.212.171 Received: by mail-wi0-f171.google.com with SMTP id ho1so5813071wib.10 for ; Tue, 23 Sep 2014 15:12:23 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=W1ozXICjc4+Mbem/Pft8QUXJ/3szkm+LH6NgBWw1s9E=; b=E4wQH3+cL/nBhktGBbI8w+bUKiX+BVkVnx0vVokudCrqEhDbqVyREI37WrraFOH0hs PKB4bC9KMPzQJZnAD1iHk6T6Qv+6dmAMtxNzvXFULAKA2Bk4S3hPLazL2nGl5rKkiGWJ vf7kxPB94V2i4bGswS9oyJHPp7JM/CmhpSgxnZAqmWZQcNxloefmAJrhjx1t3V5PeO4i wSZ0ZXZclo8SxY4BLdvq8/fAKVepbLWcJgUCy7rapqzWKJSrNChdveJspDlLMJnlM9Ti 1ZDKcSQEkp5TzmydRZF3dFfjpFxgPrNiob7aqBpL6O6JSQRZqe5JMG7JR5cgME142PR3 vroQ== X-Gm-Message-State: ALoCoQmmC1akWxX8vQ7iWQKincLcITMV7izWaLbY2XB9Lnv23fwEGj/pfrDA/4bcQYiZpuplxZRC MIME-Version: 1.0 X-Received: by 10.180.93.99 with SMTP id ct3mr26790915wib.0.1411510342982; Tue, 23 Sep 2014 15:12:22 -0700 (PDT) Received: by 10.27.178.161 with HTTP; Tue, 23 Sep 2014 15:12:22 -0700 (PDT) In-Reply-To: <5839367.DyqsVHbRuQ@myrada> References: <5839367.DyqsVHbRuQ@myrada> Date: Tue, 23 Sep 2014 18:12:22 -0400 Message-ID: Subject: Re: Corrupted file system From: Sean Caron X-ASG-Orig-Subj: Re: Corrupted file system To: Diane Trout , Sean Caron Cc: "xfs@oss.sgi.com" Content-Type: multipart/alternative; boundary=f46d043c08e8972c060503c2dc8f X-Barracuda-Connect: mail-wi0-f171.google.com[209.85.212.171] X-Barracuda-Start-Time: 1411510343 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9801 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message --f46d043c08e8972c060503c2dc8f Content-Type: text/plain; charset=UTF-8 Hi Diane, Probably best to reformat and restore from a backup at this point. I'm notorious for my views on xfs_repair but most folks here will agree that in the case where there has been a major underlying array failure, there is not much it can do to help. Better to just mount ro,noreplaylog and get what you can in these sorts of scenarios, IMO. "Did you try the latest copy of xfs_repair"? Sometimes it will get further or not crash, but it likely will still maul whatever's left of your filesystem. Best of luck, Sean On Tue, Sep 23, 2014 at 6:02 PM, Diane Trout wrote: > Hi, > > I had a raid failure at work that ended up corrupting an xfs filesystem the > tail of the xfs_repair command looks like the below. I was able to > generate a > metadata dump but is there a point to making it available? > > It does crash repeatedly at the same place > > (I'm not subscribed to the list, so could you reply directly as well?) > > disconnected inode 15276, moving to lost+found > disconnected inode 15277, moving to lost+found > disconnected inode 15278, moving to lost+found > disconnected inode 15279, moving to lost+found > disconnected inode 15280, moving to lost+found > disconnected inode 15281, moving to lost+found > disconnected inode 15282, moving to lost+found > disconnected inode 15283, moving to lost+found > disconnected inode 15284, moving to lost+found > disconnected inode 15286, moving to lost+found > disconnected inode 15287, moving to lost+found > disconnected inode 15288, moving to lost+found > disconnected inode 15289, moving to lost+found > disconnected inode 15290, moving to lost+found > disconnected inode 15291, moving to lost+found > disconnected inode 15292, moving to lost+found > disconnected inode 15293, moving to lost+found > disconnected inode 15294, moving to lost+found > disconnected inode 15295, moving to lost+found > disconnected inode 15360, moving to lost+found > corrupt dinode 15360, extent total = 1, nblocks = 0. This is a bug. > Please capture the filesystem metadata with xfs_metadump and > report it to xfs@oss.sgi.com. > cache_node_purge: refcount was 1, not zero (node=0x7f369883e6f0) > > fatal error -- 117 - couldn't iget disconnected inode > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs > --f46d043c08e8972c060503c2dc8f Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi Diane,

Probably best to reformat and= restore from a backup at this point. I'm notorious for my views on xfs= _repair but most folks here will agree that in the case where there has bee= n a major underlying array failure, there is not much it can do to help. Be= tter to just mount ro,noreplaylog and get what you can in these sorts of sc= enarios, IMO.

"Did you try the latest copy of= xfs_repair"? Sometimes it will get further or not crash, but it likel= y will still maul whatever's left of your filesystem.

Best of luck,

Sean


On Tue, Sep 23= , 2014 at 6:02 PM, Diane Trout <diane@caltech.edu> wrote:
Hi,

I had a raid failure at work that ended up corrupting an xfs filesystem the=
tail of the xfs_repair command looks like the below. I was able to generate= a
metadata dump but is there a point to making it available?

It does crash repeatedly at the same place

(I'm not subscribed to the list, so could you reply directly as well?)<= br>
disconnected inode 15276, moving to lost+found
disconnected inode 15277, moving to lost+found
disconnected inode 15278, moving to lost+found
disconnected inode 15279, moving to lost+found
disconnected inode 15280, moving to lost+found
disconnected inode 15281, moving to lost+found
disconnected inode 15282, moving to lost+found
disconnected inode 15283, moving to lost+found
disconnected inode 15284, moving to lost+found
disconnected inode 15286, moving to lost+found
disconnected inode 15287, moving to lost+found
disconnected inode 15288, moving to lost+found
disconnected inode 15289, moving to lost+found
disconnected inode 15290, moving to lost+found
disconnected inode 15291, moving to lost+found
disconnected inode 15292, moving to lost+found
disconnected inode 15293, moving to lost+found
disconnected inode 15294, moving to lost+found
disconnected inode 15295, moving to lost+found
disconnected inode 15360, moving to lost+found
corrupt dinode 15360, extent total =3D 1, nblocks =3D 0.=C2=A0 This is a bu= g.
Please capture the filesystem metadata with xfs_metadump and
report it to xfs@oss.sgi.com.
cache_node_purge: refcount was 1, not zero (node=3D0x7f369883e6f0)

fatal error -- 117 - couldn't iget disconnected inode


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

--f46d043c08e8972c060503c2dc8f-- From diane@caltech.edu Tue Sep 23 17:29:54 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BB00429DF9 for ; Tue, 23 Sep 2014 17:29:54 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 33B4AAC008 for ; Tue, 23 Sep 2014 15:29:48 -0700 (PDT) X-ASG-Debug-ID: 1411511385-04cbb07301109bb0001-NocioJ Received: from chaos.caltech.edu (chaos.caltech.edu [131.215.34.119]) by cuda.sgi.com with ESMTP id 4MjiRUEpbiwXVJJ4 (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO) for ; Tue, 23 Sep 2014 15:29:46 -0700 (PDT) X-Barracuda-Envelope-From: diane@caltech.edu X-Barracuda-Apparent-Source-IP: 131.215.34.119 Received: from [50.1.221.254] (helo=myrada.localnet) by chaos.caltech.edu with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.80) (envelope-from ) id 1XWYaf-0005G2-1q; Tue, 23 Sep 2014 15:29:45 -0700 From: Diane Trout To: Sean Caron Cc: "xfs@oss.sgi.com" Subject: Re: Corrupted file system Date: Tue, 23 Sep 2014 15:29:43 -0700 X-ASG-Orig-Subj: Re: Corrupted file system Message-ID: <6825577.fQrC5yyUIR@myrada> User-Agent: KMail/4.14 (Linux/3.14-2-amd64; KDE/4.14.0; x86_64; ; ) In-Reply-To: References: <5839367.DyqsVHbRuQ@myrada> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Barracuda-Connect: chaos.caltech.edu[131.215.34.119] X-Barracuda-Start-Time: 1411511386 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9802 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hello, Yes, I had my doubts about that there's anything reasonable one could do after part of the file system was randomized. I'll trying updating to xfsprogs 3.2.1 and see if that does any better. Thank you for the advice. Diane On Tuesday, September 23, 2014 18:12:22 Sean Caron wrote: > Hi Diane, > > Probably best to reformat and restore from a backup at this point. I'm > notorious for my views on xfs_repair but most folks here will agree that in > the case where there has been a major underlying array failure, there is > not much it can do to help. Better to just mount ro,noreplaylog and get > what you can in these sorts of scenarios, IMO. > > "Did you try the latest copy of xfs_repair"? Sometimes it will get further > or not crash, but it likely will still maul whatever's left of your > filesystem. > > Best of luck, > > Sean > > On Tue, Sep 23, 2014 at 6:02 PM, Diane Trout wrote: > > Hi, > > > > I had a raid failure at work that ended up corrupting an xfs filesystem > > the > > tail of the xfs_repair command looks like the below. I was able to > > generate a > > metadata dump but is there a point to making it available? > > > > It does crash repeatedly at the same place > > > > (I'm not subscribed to the list, so could you reply directly as well?) > > > > disconnected inode 15276, moving to lost+found > > disconnected inode 15277, moving to lost+found > > disconnected inode 15278, moving to lost+found > > disconnected inode 15279, moving to lost+found > > disconnected inode 15280, moving to lost+found > > disconnected inode 15281, moving to lost+found > > disconnected inode 15282, moving to lost+found > > disconnected inode 15283, moving to lost+found > > disconnected inode 15284, moving to lost+found > > disconnected inode 15286, moving to lost+found > > disconnected inode 15287, moving to lost+found > > disconnected inode 15288, moving to lost+found > > disconnected inode 15289, moving to lost+found > > disconnected inode 15290, moving to lost+found > > disconnected inode 15291, moving to lost+found > > disconnected inode 15292, moving to lost+found > > disconnected inode 15293, moving to lost+found > > disconnected inode 15294, moving to lost+found > > disconnected inode 15295, moving to lost+found > > disconnected inode 15360, moving to lost+found > > corrupt dinode 15360, extent total = 1, nblocks = 0. This is a bug. > > Please capture the filesystem metadata with xfs_metadump and > > report it to xfs@oss.sgi.com. > > cache_node_purge: refcount was 1, not zero (node=0x7f369883e6f0) > > > > fatal error -- 117 - couldn't iget disconnected inode > > > > > > _______________________________________________ > > xfs mailing list > > xfs@oss.sgi.com > > http://oss.sgi.com/mailman/listinfo/xfs From sandeen@sandeen.net Tue Sep 23 18:12:42 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 001727F4E for ; Tue, 23 Sep 2014 18:12:42 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id D448D304039 for ; Tue, 23 Sep 2014 16:12:38 -0700 (PDT) X-ASG-Debug-ID: 1411513953-04cb6c50e61010b0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id BQnRmRpq4WElZ5H3 for ; Tue, 23 Sep 2014 16:12:34 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 9D432602D74F; Tue, 23 Sep 2014 18:12:33 -0500 (CDT) Message-ID: <5421FE61.30508@sandeen.net> Date: Tue, 23 Sep 2014 18:12:33 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Diane Trout , Sean Caron CC: "xfs@oss.sgi.com" Subject: Re: Corrupted file system References: <5839367.DyqsVHbRuQ@myrada> <6825577.fQrC5yyUIR@myrada> X-ASG-Orig-Subj: Re: Corrupted file system In-Reply-To: <6825577.fQrC5yyUIR@myrada> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1411513954 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9802 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/23/14 5:29 PM, Diane Trout wrote: > Hello, > > Yes, I had my doubts about that there's anything reasonable one could do after > part of the file system was randomized. I'll trying updating to xfsprogs 3.2.1 > and see if that does any better. Yes - you didn't mention which version you used, but I'd definitely try something current. The bug rings a bell, maybe fixed now. To be safe, you can always make an xfs_metadump image (use -o to not obfuscate filenames for convenience), xfs_mdrestore that, and point repair at that fs image. Then you'll see what it *would* do before you *do* do. ;) But yeah, depending on the damage done to the storage, you may be in trouble that repair can't help with. Depends on the failure, though. -Eric From tessarek@evermeet.cx Tue Sep 23 19:46:43 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 170C77F3F for ; Tue, 23 Sep 2014 19:46:43 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 05113304048 for ; Tue, 23 Sep 2014 17:46:39 -0700 (PDT) X-ASG-Debug-ID: 1411519596-04cb6c50e6104140001-NocioJ Received: from atvie01s.evermeet.cx (evermeet.cx [77.244.245.66]) by cuda.sgi.com with ESMTP id pAAVrkwyonDJ2QtJ (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 23 Sep 2014 17:46:37 -0700 (PDT) X-Barracuda-Envelope-From: tessarek@evermeet.cx X-Barracuda-Apparent-Source-IP: 77.244.245.66 Received: from [10.0.0.40] (135-23-85-229.cpe.pppoe.ca [135.23.85.229]) (authenticated bits=0) by atvie01s.evermeet.cx (8.14.9/8.14.9) with ESMTP id s8O0kXKW008177 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Wed, 24 Sep 2014 02:46:34 +0200 Message-ID: <5422146A.90206@evermeet.cx> Date: Tue, 23 Sep 2014 20:46:34 -0400 From: Helmut Tessarek User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:31.0) Gecko/20100101 Thunderbird/31.1.1 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: How to format RAID1 correctly OpenPGP: id=C11F128D X-ASG-Orig-Subj: How to format RAID1 correctly Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: evermeet.cx[77.244.245.66] X-Barracuda-Start-Time: 1411519597 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-BRTS-Evidence: pkqs.net X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9805 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- The information provided in the FAQ and on several web sites is not really useful regarding RAID1. According to the FAQ (entry 35): The correct options to format a RAID1 (2 disks) with 64k chunk size is: mkfs.xfs -d su=64k -d sw=1 /dev/mapper/data But it also states that it would be automatically detected and used correctly, yet mkfs.xfs /dev/mapper/data yields a different result: [root@atvie01s ~]# mkfs.xfs -f /dev/mapper/data meta-data=/dev/mapper/data isize=256 agcount=4, agsize=244173876 blks = sectsz=4096 attr=2, projid32bit=1 = crc=0 finobt=0 data = bsize=4096 blocks=976695504, imaxpct=5 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 ftype=0 log =internal log bsize=4096 blocks=476902, version=2 = sectsz=4096 sunit=1 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 Formel 1: [root@atvie01s ~]# mkfs.xfs -f -d su=64k -d sw=1 /dev/mapper/data meta-data=/dev/mapper/data isize=256 agcount=32, agsize=30521728 blks = sectsz=4096 attr=2, projid32bit=1 = crc=0 finobt=0 data = bsize=4096 blocks=976695296, imaxpct=5 = sunit=16 swidth=16 blks naming =version 2 bsize=4096 ascii-ci=0 ftype=0 log =internal log bsize=4096 blocks=476902, version=2 = sectsz=4096 sunit=1 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 Another inconsistency is that RAID1 doesn't use striping, so the chunk size should be irrelevant in the first place. So what is ultimately the correct way to format a RAID1? Cheers, K. C. -- regards Helmut K. C. Tessarek lookup http://sks.pkqs.net for KeyID 0xC11F128D /* Thou shalt not follow the NULL pointer for chaos and madness await thee at its end. */ From tessarek@evermeet.cx Tue Sep 23 21:05:16 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 768397F3F for ; Tue, 23 Sep 2014 21:05:16 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 5BAA9304048 for ; Tue, 23 Sep 2014 19:05:13 -0700 (PDT) X-ASG-Debug-ID: 1411524304-04cbb073031115d0001-NocioJ Received: from atvie01s.evermeet.cx (evermeet.cx [77.244.245.66]) by cuda.sgi.com with ESMTP id gvDLIWajZ4uNoz7T (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 23 Sep 2014 19:05:05 -0700 (PDT) X-Barracuda-Envelope-From: tessarek@evermeet.cx X-Barracuda-Apparent-Source-IP: 77.244.245.66 Received: from [10.0.0.40] (135-23-85-229.cpe.pppoe.ca [135.23.85.229]) (authenticated bits=0) by atvie01s.evermeet.cx (8.14.9/8.14.9) with ESMTP id s8O252Cq008420 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Wed, 24 Sep 2014 04:05:04 +0200 Message-ID: <542226CD.6050106@evermeet.cx> Date: Tue, 23 Sep 2014 22:05:01 -0400 From: Helmut Tessarek User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:31.0) Gecko/20100101 Thunderbird/31.1.1 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: Re: How to format RAID1 correctly References: <5422146A.90206@evermeet.cx> X-ASG-Orig-Subj: Re: How to format RAID1 correctly In-Reply-To: <5422146A.90206@evermeet.cx> OpenPGP: id=C11F128D Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: evermeet.cx[77.244.245.66] X-Barracuda-Start-Time: 1411524305 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-BRTS-Evidence: pkqs.net X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9809 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 23.09.14 20:46 , Helmut Tessarek wrote: > So what is ultimately the correct way to format a RAID1? According to sandeen in #xfs the correct way is: mkfs.xfs /dev/md0 Makes sense, since no striping is involved. Just wanted to clarify and I did. Cheers, K. C. -- regards Helmut K. C. Tessarek lookup http://sks.pkqs.net for KeyID 0xC11F128D /* Thou shalt not follow the NULL pointer for chaos and madness await thee at its end. */ From sandeen@sandeen.net Tue Sep 23 21:07:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1360B7F3F for ; Tue, 23 Sep 2014 21:07:37 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id A1F67AC006 for ; Tue, 23 Sep 2014 19:07:33 -0700 (PDT) X-ASG-Debug-ID: 1411524451-04bdf0039f117490001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id hB9ThZMKbyeZjNF6 for ; Tue, 23 Sep 2014 19:07:32 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 8B67E63D2063; Tue, 23 Sep 2014 21:07:31 -0500 (CDT) Message-ID: <54222763.40107@sandeen.net> Date: Tue, 23 Sep 2014 21:07:31 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Helmut Tessarek , xfs@oss.sgi.com Subject: Re: How to format RAID1 correctly References: <5422146A.90206@evermeet.cx> X-ASG-Orig-Subj: Re: How to format RAID1 correctly In-Reply-To: <5422146A.90206@evermeet.cx> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1411524451 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9809 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/23/14 7:46 PM, Helmut Tessarek wrote: > The information provided in the FAQ and on several web sites is not really > useful regarding RAID1. > > According to the FAQ (entry 35): > The correct options to format a RAID1 (2 disks) with 64k chunk size is: > mkfs.xfs -d su=64k -d sw=1 /dev/mapper/data I don't see that text in the faq... where is it? I see: > So if your RAID controller has a stripe size of 64KB, and you have a RAID-6 with 8 disks, use > > su = 64k > sw = 6 (RAID-6 of 8 disks has 6 data disks) but! your raid doesn't have a 64k stripe, so that doesn't apply. > But it also states that it would be automatically detected and used correctly, > yet > mkfs.xfs /dev/mapper/data > yields a different result: > > [root@atvie01s ~]# mkfs.xfs -f /dev/mapper/data > > meta-data=/dev/mapper/data isize=256 agcount=4, > agsize=244173876 blks > = sectsz=4096 attr=2, projid32bit=1 > = crc=0 finobt=0 > data = bsize=4096 blocks=976695504, imaxpct=5 > = sunit=0 swidth=0 blks no geometry because md0 raid1 doesn't export any stripe geometry. > Formel 1: > > [root@atvie01s ~]# mkfs.xfs -f -d su=64k -d sw=1 /dev/mapper/data > > meta-data=/dev/mapper/data isize=256 agcount=32, > agsize=30521728 blks > = sectsz=4096 attr=2, projid32bit=1 > = crc=0 finobt=0 > data = bsize=4096 blocks=976695296, imaxpct=5 > = sunit=16 swidth=16 blks You specified it, so mkfs obeyed. > naming =version 2 bsize=4096 ascii-ci=0 ftype=0 > log =internal log bsize=4096 blocks=476902, version=2 > = sectsz=4096 sunit=1 blks, lazy-count=1 > realtime =none extsz=4096 blocks=0, rtextents=0 > > > Another inconsistency is that RAID1 doesn't use striping, so the chunk size > should be irrelevant in the first place. agreed - but I don't see anything in the faq about raid1 stripes. Am I missing something? > So what is ultimately the correct way to format a RAID1? for software md raid over individual disks, bare mkfs should do the right thing. -Eric From tessarek@evermeet.cx Tue Sep 23 21:11:44 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 048007F3F for ; Tue, 23 Sep 2014 21:11:44 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id D2F628F8039 for ; Tue, 23 Sep 2014 19:11:43 -0700 (PDT) X-ASG-Debug-ID: 1411524701-04cb6c50e4106a30001-NocioJ Received: from atvie01s.evermeet.cx (evermeet.cx [77.244.245.66]) by cuda.sgi.com with ESMTP id MsFaggxQmvLN0OjN (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 23 Sep 2014 19:11:42 -0700 (PDT) X-Barracuda-Envelope-From: tessarek@evermeet.cx X-Barracuda-Apparent-Source-IP: 77.244.245.66 Received: from [10.0.0.40] (135-23-85-229.cpe.pppoe.ca [135.23.85.229]) (authenticated bits=0) by atvie01s.evermeet.cx (8.14.9/8.14.9) with ESMTP id s8O2BdiM008542 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Wed, 24 Sep 2014 04:11:40 +0200 Message-ID: <5422285B.6010306@evermeet.cx> Date: Tue, 23 Sep 2014 22:11:39 -0400 From: Helmut Tessarek User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:31.0) Gecko/20100101 Thunderbird/31.1.1 MIME-Version: 1.0 To: Eric Sandeen , xfs@oss.sgi.com Subject: Re: How to format RAID1 correctly References: <5422146A.90206@evermeet.cx> <54222763.40107@sandeen.net> X-ASG-Orig-Subj: Re: How to format RAID1 correctly In-Reply-To: <54222763.40107@sandeen.net> OpenPGP: id=C11F128D Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: evermeet.cx[77.244.245.66] X-Barracuda-Start-Time: 1411524701 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9808 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 23.09.14 22:07 , Eric Sandeen wrote: > but! your raid doesn't have a 64k stripe, so that doesn't apply. Yep, that's true, but see below. > no geometry because md0 raid1 doesn't export any stripe geometry. [root@atvie01s ~]# cat /proc/mdstat Personalities : [raid1] md0 : active raid1 sdb1[0] sdd1[1] 3906784064 blocks super 1.2 [2/2] [UU] bitmap: 0/30 pages [0KB], 65536KB chunk So for some reason it shows a 64k chunk size even for RAID1. That was what got me confused. -- regards Helmut K. C. Tessarek lookup http://sks.pkqs.net for KeyID 0xC11F128D /* Thou shalt not follow the NULL pointer for chaos and madness await thee at its end. */ From sandeen@sandeen.net Tue Sep 23 21:21:27 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 185A97F3F for ; Tue, 23 Sep 2014 21:21:27 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 97A66AC004 for ; Tue, 23 Sep 2014 19:21:26 -0700 (PDT) X-ASG-Debug-ID: 1411525285-04cb6c50e7106f80001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id vMWRR3dQ5IdqOgFH for ; Tue, 23 Sep 2014 19:21:25 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 248B063D22A4; Tue, 23 Sep 2014 21:21:25 -0500 (CDT) Message-ID: <54222AA4.5010501@sandeen.net> Date: Tue, 23 Sep 2014 21:21:24 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Helmut Tessarek , xfs@oss.sgi.com Subject: Re: How to format RAID1 correctly References: <5422146A.90206@evermeet.cx> <54222763.40107@sandeen.net> <5422285B.6010306@evermeet.cx> X-ASG-Orig-Subj: Re: How to format RAID1 correctly In-Reply-To: <5422285B.6010306@evermeet.cx> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1411525285 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9809 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/23/14 9:11 PM, Helmut Tessarek wrote: > On 23.09.14 22:07 , Eric Sandeen wrote: >> but! your raid doesn't have a 64k stripe, so that doesn't apply. > > Yep, that's true, but see below. > >> no geometry because md0 raid1 doesn't export any stripe geometry. > > [root@atvie01s ~]# cat /proc/mdstat > Personalities : [raid1] > md0 : active raid1 sdb1[0] sdd1[1] > 3906784064 blocks super 1.2 [2/2] [UU] > bitmap: 0/30 pages [0KB], 65536KB chunk > > So for some reason it shows a 64k chunk size even for RAID1. > > That was what got me confused. Hm, 65536KB sounds like 64MB... Anyway, mkfs.xfs picks up the queue's minimum IO size for sunit, and optimal io size for swidth. So: blkid # blockdev --getiomin --getioopt /dev/md0 (which here returns: 512 0 here) will show you what your raid's queue is actually reporting, and what mkfs.xfs will pick up. -Eric From tessarek@evermeet.cx Tue Sep 23 21:30:24 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C3C707F3F for ; Tue, 23 Sep 2014 21:30:24 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id A19E88F804B for ; Tue, 23 Sep 2014 19:30:24 -0700 (PDT) X-ASG-Debug-ID: 1411525822-04cb6c50e4107320001-NocioJ Received: from atvie01s.evermeet.cx (evermeet.cx [77.244.245.66]) by cuda.sgi.com with ESMTP id uvNyAjx0YGz07iph (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 23 Sep 2014 19:30:23 -0700 (PDT) X-Barracuda-Envelope-From: tessarek@evermeet.cx X-Barracuda-Apparent-Source-IP: 77.244.245.66 Received: from [10.0.0.40] (135-23-85-229.cpe.pppoe.ca [135.23.85.229]) (authenticated bits=0) by atvie01s.evermeet.cx (8.14.9/8.14.9) with ESMTP id s8O2UKcW009210 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Wed, 24 Sep 2014 04:30:21 +0200 Message-ID: <54222CBC.7010203@evermeet.cx> Date: Tue, 23 Sep 2014 22:30:20 -0400 From: Helmut Tessarek User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:31.0) Gecko/20100101 Thunderbird/31.1.1 MIME-Version: 1.0 To: Eric Sandeen , xfs@oss.sgi.com Subject: Re: How to format RAID1 correctly References: <5422146A.90206@evermeet.cx> <54222763.40107@sandeen.net> <5422285B.6010306@evermeet.cx> <54222AA4.5010501@sandeen.net> X-ASG-Orig-Subj: Re: How to format RAID1 correctly In-Reply-To: <54222AA4.5010501@sandeen.net> OpenPGP: id=C11F128D Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: evermeet.cx[77.244.245.66] X-Barracuda-Start-Time: 1411525822 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9809 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 23.09.14 22:21 , Eric Sandeen wrote: > blkid # blockdev --getiomin --getioopt /dev/md0 > > (which here returns: > 512 > 0 > here) > > will show you what your raid's queue is actually reporting, > and what mkfs.xfs will pick up. [root@atvie01s ~]# blockdev --getiomin --getioopt /dev/md0 4096 0 -- regards Helmut K. C. Tessarek lookup http://sks.pkqs.net for KeyID 0xC11F128D /* Thou shalt not follow the NULL pointer for chaos and madness await thee at its end. */ From stan@hardwarefreak.com Tue Sep 23 22:05:18 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id F149E7F3F for ; Tue, 23 Sep 2014 22:05:18 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id D058D8F8054 for ; Tue, 23 Sep 2014 20:05:18 -0700 (PDT) X-ASG-Debug-ID: 1411527914-04bdf003a21190f0001-NocioJ Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id sZ3ZSKP8yf7oIjlG for ; Tue, 23 Sep 2014 20:05:14 -0700 (PDT) X-Barracuda-Envelope-From: stan@hardwarefreak.com X-Barracuda-Apparent-Source-IP: 65.41.216.221 X-Barracuda-User-Whitelist: xfs@oss.sgi.com Received: from [192.168.100.53] (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by greer.hardwarefreak.com (Postfix) with ESMTPA id DF3FA6C052; Tue, 23 Sep 2014 22:05:13 -0500 (CDT) Message-ID: <542234F6.4080000@hardwarefreak.com> Date: Tue, 23 Sep 2014 22:05:26 -0500 From: stan hoeppner User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Icedove/24.7.0 MIME-Version: 1.0 To: Helmut Tessarek , Eric Sandeen , xfs@oss.sgi.com Subject: Re: How to format RAID1 correctly References: <5422146A.90206@evermeet.cx> <54222763.40107@sandeen.net> <5422285B.6010306@evermeet.cx> X-ASG-Orig-Subj: Re: How to format RAID1 correctly In-Reply-To: <5422285B.6010306@evermeet.cx> 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: 1411527914 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 09/23/2014 09:11 PM, Helmut Tessarek wrote: > On 23.09.14 22:07 , Eric Sandeen wrote: >> but! your raid doesn't have a 64k stripe, so that doesn't apply. > > Yep, that's true, but see below. > >> no geometry because md0 raid1 doesn't export any stripe geometry. > > [root@atvie01s ~]# cat /proc/mdstat > Personalities : [raid1] > md0 : active raid1 sdb1[0] sdd1[1] > 3906784064 blocks super 1.2 [2/2] [UU] > bitmap: 0/30 pages [0KB], 65536KB chunk > > So for some reason it shows a 64k chunk size even for RAID1. > > That was what got me confused. It confuses many people who are new to md RAID1. The above is the *bitmap* chunk size, not the array chunk size. There is no array chunk size for RAID1 as there is no striping. You must have striping to have chunks. With md RAID1 every 4KB page write is simply mirrored to each physical disk. Cheers, Stan From tessarek@evermeet.cx Tue Sep 23 22:16:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 3B0237F3F for ; Tue, 23 Sep 2014 22:16:11 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id BF180AC004 for ; Tue, 23 Sep 2014 20:16:07 -0700 (PDT) X-ASG-Debug-ID: 1411528564-04cb6c50e4108860001-NocioJ Received: from atvie01s.evermeet.cx (evermeet.cx [77.244.245.66]) by cuda.sgi.com with ESMTP id h4MDOaj9xWUuApug (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 23 Sep 2014 20:16:05 -0700 (PDT) X-Barracuda-Envelope-From: tessarek@evermeet.cx X-Barracuda-Apparent-Source-IP: 77.244.245.66 Received: from [10.0.0.40] (135-23-85-229.cpe.pppoe.ca [135.23.85.229]) (authenticated bits=0) by atvie01s.evermeet.cx (8.14.9/8.14.9) with ESMTP id s8O3FuRS010678 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Wed, 24 Sep 2014 05:15:58 +0200 Message-ID: <5422376D.3000204@evermeet.cx> Date: Tue, 23 Sep 2014 23:15:57 -0400 From: Helmut Tessarek User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:31.0) Gecko/20100101 Thunderbird/31.1.1 MIME-Version: 1.0 To: stan hoeppner , Eric Sandeen , xfs@oss.sgi.com Subject: Re: How to format RAID1 correctly References: <5422146A.90206@evermeet.cx> <54222763.40107@sandeen.net> <5422285B.6010306@evermeet.cx> <542234F6.4080000@hardwarefreak.com> X-ASG-Orig-Subj: Re: How to format RAID1 correctly In-Reply-To: <542234F6.4080000@hardwarefreak.com> OpenPGP: id=C11F128D Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: evermeet.cx[77.244.245.66] X-Barracuda-Start-Time: 1411528565 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9810 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 23.09.14 23:05 , stan hoeppner wrote: > It confuses many people who are new to md RAID1. The above is the > *bitmap* chunk size, not the array chunk size. There is no array chunk > size for RAID1 as there is no striping. You must have striping to have > chunks. With md RAID1 every 4KB page write is simply mirrored to each > physical disk. Thanks for the info. I'm used to big ass storage subsystems, but new to SW RAID. I seems I have some catching up to do. -- regards Helmut K. C. Tessarek lookup http://sks.pkqs.net for KeyID 0xC11F128D /* Thou shalt not follow the NULL pointer for chaos and madness await thee at its end. */ From stan@hardwarefreak.com Tue Sep 23 23:09:01 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id DD8067F3F for ; Tue, 23 Sep 2014 23:09:01 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id CB94E304032 for ; Tue, 23 Sep 2014 21:08:58 -0700 (PDT) X-ASG-Debug-ID: 1411531737-04cb6c50e7109ee0001-NocioJ Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id h44o89fdek3uFVET for ; Tue, 23 Sep 2014 21:08:57 -0700 (PDT) X-Barracuda-Envelope-From: stan@hardwarefreak.com X-Barracuda-Apparent-Source-IP: 65.41.216.221 X-Barracuda-User-Whitelist: xfs@oss.sgi.com Received: from [192.168.100.53] (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by greer.hardwarefreak.com (Postfix) with ESMTPA id 23D756C0E9; Tue, 23 Sep 2014 23:08:57 -0500 (CDT) Message-ID: <542243E6.1040302@hardwarefreak.com> Date: Tue, 23 Sep 2014 23:09:10 -0500 From: Stan Hoeppner User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Icedove/24.7.0 MIME-Version: 1.0 To: Helmut Tessarek , Eric Sandeen , xfs@oss.sgi.com Subject: Re: How to format RAID1 correctly References: <5422146A.90206@evermeet.cx> <54222763.40107@sandeen.net> <5422285B.6010306@evermeet.cx> <542234F6.4080000@hardwarefreak.com> <5422376D.3000204@evermeet.cx> X-ASG-Orig-Subj: Re: How to format RAID1 correctly In-Reply-To: <5422376D.3000204@evermeet.cx> 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: 1411531737 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 09/23/2014 10:15 PM, Helmut Tessarek wrote: > On 23.09.14 23:05 , stan hoeppner wrote: >> It confuses many people who are new to md RAID1. The above is the >> *bitmap* chunk size, not the array chunk size. There is no array chunk >> size for RAID1 as there is no striping. You must have striping to have >> chunks. With md RAID1 every 4KB page write is simply mirrored to each >> physical disk. > > Thanks for the info. I'm used to big ass storage subsystems, but new to SW > RAID. I seems I have some catching up to do. If you create any striped arrays, especially parity arrays, with md make sure to manually specify chunk size and match it to your workload. The current default is 512KB. This is too large for a great many workloads, specifically those that are metadata heavy or manipulate many small files. 512KB wastes space and with parity arrays causes RMW, hammering throughput and increasing latency. Cheers, Stan From arekm@maven.pl Wed Sep 24 02:03:56 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B521D7F3F for ; Wed, 24 Sep 2014 02:03:56 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 600C1AC004 for ; Wed, 24 Sep 2014 00:03:53 -0700 (PDT) X-ASG-Debug-ID: 1411542229-04bdf003a11213c0001-NocioJ Received: from mail-lb0-f170.google.com (mail-lb0-f170.google.com [209.85.217.170]) by cuda.sgi.com with ESMTP id SFODCmnDmcretLbj (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 24 Sep 2014 00:03:50 -0700 (PDT) X-Barracuda-Envelope-From: arekm@maven.pl X-Barracuda-Apparent-Source-IP: 209.85.217.170 Received: by mail-lb0-f170.google.com with SMTP id z11so4700026lbi.1 for ; Wed, 24 Sep 2014 00:03:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=maven.pl; s=maven; h=from:to:subject:date:user-agent:mime-version:content-type :content-transfer-encoding:message-id; bh=37LYVnuTyW+gBQudynO9zn6h7RgxrBMcNvKJgcX5Jzk=; b=RUfd2Tu2z0Z4PrSQ8ngLs4ADpIoNMVCOurTAZEZC2BWoTPkav2Gj8mmaFL59+uG27U xVmfBWesCDFXZpCOmCT3dMgCWGlnU3nDfa+u8aVklTbagdvxWSTFuQpOEmcZhnPlCoLN VAsii0e+2+poFhM+4BfEvGUC37F+/25wXSYEI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:subject:date:user-agent:mime-version :content-type:content-transfer-encoding:message-id; bh=37LYVnuTyW+gBQudynO9zn6h7RgxrBMcNvKJgcX5Jzk=; b=EhVPTb9zeSgQsloItlKcj5SPTwc6A3MB7L/Kf4D6EomDBPdCfaWBLVLHk05MnPcRMV /u7ABdfggupKV5BmDSQsYb1BkvnfHlvJGotKgfK43voCCc/tj62dRWwG3fq2I5Huzctv Vk66BCqsSHkfgZHg9H/5AmHH5cDuSl6uE+RzI1BJriBfLzVr/TwCzeDS40Z+4uYNzSbg 6iDCyzy4/Yes1Mfe6bK+uWqq8tpWgBCQDraBg+z81eaw7l5+EmAlQNKDIKBuekIZHAW/ S/+C7SromxjU8aV9SBuXhdoGqS2d5BsP3Twx2PE68M/TuRO4XUOfrhawFoaBBCHyNrMd 5Ung== X-Gm-Message-State: ALoCoQmQPDbR/BYnMyNLS0jP6FNyKDOqZE59xlbBj/2aJs3PhxNk6NgdbPwiRDcKXCu+kO/EyHeY X-Received: by 10.152.234.76 with SMTP id uc12mr4567756lac.50.1411542228281; Wed, 24 Sep 2014 00:03:48 -0700 (PDT) Received: from t400.localnet ([91.234.176.246]) by mx.google.com with ESMTPSA id ug7sm5450280lac.48.2014.09.24.00.03.47 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 24 Sep 2014 00:03:47 -0700 (PDT) From: Arkadiusz =?utf-8?q?Mi=C5=9Bkiewicz?= To: xfs@oss.sgi.com Subject: "No space left on device" from hell Date: Wed, 24 Sep 2014 09:03:46 +0200 X-ASG-Orig-Subj: "No space left on device" from hell User-Agent: KMail/1.13.7 (Linux/3.17.0-rc6; KDE/4.14.0; x86_64; ; ) MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <201409240903.46899.arekm@maven.pl> X-Barracuda-Connect: mail-lb0-f170.google.com[209.85.217.170] X-Barracuda-Start-Time: 1411542229 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9816 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 Hello. 3.10.40 kernel and creating files causes "No space left on device". After=20 deleting some files I can create new files again until the problem happens= =20 again. Any ideas what is going on and, what is more important, how to fix the=20 problem? # df -h /dev/mapper/vgsys-home 600G 368G 232G 62% /home # df -i /dev/mapper/vgsys-home 629145600 7982895 621162705 2% /home # xfs_info /home meta-data=3D/dev/mapper/vgsys-home isize=3D256 agcount=3D8, agsize=3D196= 60800 blks =3D sectsz=3D512 attr=3D2, projid32bit=3D1 =3D crc=3D0 finobt=3D0 data =3D bsize=3D4096 blocks=3D157286400, imaxp= ct=3D25 =3D sunit=3D0 swidth=3D0 blks naming =3Dversion 2 bsize=3D4096 ascii-ci=3D0 ftype=3D0 log =3Dinternal bsize=3D4096 blocks=3D38400, version= =3D2 =3D sectsz=3D512 sunit=3D0 blks, lazy-coun= t=3D1 realtime =3Dnone extsz=3D4096 blocks=3D0, rtextents=3D imaxpct=3D25% but current inodes take only about 2GB, much less that 25% of= =20 600G, so that shouldn't be problem /dev/mapper/vgsys-home /home xfs=20 rw,nosuid,nodev,relatime,attr2,inode64,usrquota,prjquota 0 0 so inode64 is not a problem # xfs_quota -c "quota -p 0" /home Disk quotas for Project #0 (0) =46ilesystem Blocks Quota Limit Warn/Time Moun= ted=20 on /dev/mapper/vgsys-home 27848804 0 0 00 [--------] /home # xfs_quota -c "quota -u 0" /home Disk quotas for User root (0) =46ilesystem Blocks Quota Limit Warn/Time Moun= ted=20 on /dev/mapper/vgsys-home 103484 0 0 00 [--------] /home # xfs_quota -c "quota -i 0" /home Disk quotas for User root (0) =46ilesystem Files Quota Limit Warn/Time Moun= ted=20 on /dev/mapper/vgsys-home 8336 0 0 00 [--------] /home so quota is not a problem, too. # xfs_db -r "-c freesp -s" /dev/mapper/vgsys-home from to extents blocks pct 1 1 3426 3426 0.01 2 3 3319 8026 0.01 4 7 3694 19027 0.03 8 15 23225 330378 0.54 16 31 396 8180 0.01 32 63 75 3256 0.01 64 127 44 3443 0.01 128 255 26 4892 0.01 256 511 32 10737 0.02 512 1023 5 3867 0.01 1024 2047 8 13576 0.02 2048 4095 5 13893 0.02 4096 8191 3 16896 0.03 8192 16383 1 15532 0.03 16384 32767 1 17731 0.03 1048576 2097151 1 1414952 2.33 16777216 19660800 3 58913965 96.90 total free extents 34264 total free blocks 60801777 average free extent size 1774.51 unfortunately no idea how to interpret this. Man page isn't helpful. http://sprunge.us/IVjE (trace-cmd of touch /home/x ... but looks to be partial only) =2D-=20 Arkadiusz Mi=C5=9Bkiewicz, arekm / maven.pl From namjae.jeon@samsung.com Wed Sep 24 02:53:54 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.1 required=5.0 tests=HDRS_LCASE,T_MANY_HDRS_LCASE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 60D807F3F for ; Wed, 24 Sep 2014 02:53:54 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id F1246AC004 for ; Wed, 24 Sep 2014 00:53:53 -0700 (PDT) X-ASG-Debug-ID: 1411545230-04bdf0039f122940001-NocioJ Received: from mailout3.samsung.com (mailout3.samsung.com [203.254.224.33]) by cuda.sgi.com with ESMTP id 4Ik1NLSzO8W8Ar6T (version=TLSv1 cipher=RC4-MD5 bits=128 verify=NO) for ; Wed, 24 Sep 2014 00:53:51 -0700 (PDT) X-Barracuda-Envelope-From: namjae.jeon@samsung.com X-Barracuda-Apparent-Source-IP: 203.254.224.33 Received: from epcpsbgr2.samsung.com (u142.gpu120.samsung.co.kr [203.254.230.142]) by mailout3.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0NCE00483B9QDNA0@mailout3.samsung.com> for xfs@oss.sgi.com; Wed, 24 Sep 2014 16:53:50 +0900 (KST) Received: from epcpsbgm1.samsung.com ( [172.20.52.115]) by epcpsbgr2.samsung.com (EPCPMTA) with SMTP id D5.C6.11124.D8872245; Wed, 24 Sep 2014 16:53:50 +0900 (KST) X-AuditID: cbfee68e-f79b46d000002b74-e1-5422788d0294 Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id 33.7D.20081.D8872245; Wed, 24 Sep 2014 16:53:49 +0900 (KST) Received: from DONAMJAEJEO06 ([10.88.104.63]) by mmp2.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0NCE008H3B9PXUF0@mmp2.samsung.com>; Wed, 24 Sep 2014 16:53:49 +0900 (KST) From: Namjae Jeon To: 'Dave Chinner' , 'Theodore Ts'o' , 'Dmitry Monakhov' , 'Christoph Hellwig' , 'linux-ext4' , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, 'Luk?? Czerner' , 'Brian Foster' , 'Ashish Sangwan' , xfs@oss.sgi.com Subject: Unifying XFS_IOC_SWAPEXT and EXT4_IOC_MOV_EXT (was Re: [PATCH 2/3] xfs: Add support IOC_MOV_DATA ioctl) Date: Wed, 24 Sep 2014 16:53:49 +0900 X-ASG-Orig-Subj: Unifying XFS_IOC_SWAPEXT and EXT4_IOC_MOV_EXT (was Re: [PATCH 2/3] xfs: Add support IOC_MOV_DATA ioctl) Message-id: <000001cfd7cc$ad447a00$07cd6e00$@samsung.com> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-index: Ac/Xy52Ab6BrJjpeQYusNfdax1wxOA== Content-language: ko X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrIIsWRmVeSWpSXmKPExsWyRsSkWLevQinE4OF1VoulEy8xW7z7XGWx 5dg9RosTMz0tTk9YxGSx7MFmFouZ8+6wWezZe5LF4vKuOWwWrT0/2S0W9d1idOD2OLVIwmPz Ci2PpjNHmT0mHf7M5LH6wlZGj/f7rrJ59G1ZxejxeZNcAEcUl01Kak5mWWqRvl0CV8bqHwuY C2bxVNxentrA+ICzi5GTQ0LAROLKo4lsELaYxIV764FsLg4hgaWMEvPWfGODKZo3dx8TiC0k MJ1RYmsfI0TRX0aJ5Vu3M3cxcnCwCWhL/NkiChIXEZjOLLHgyDFmkAZhgSKJc/9WMILYLAKq Es8PrwMbyitgKbGqcy0jhC0o8WPyPRYQm1lAS2L9zuNMELa8xOY1b5khjlCQ2HH2NVi9iICe RP+v7VD1IhL7XrwDO0hC4CO7xNm9n6CWCUh8m3yIBeQ4CQFZiU0HoOZIShxccYNlAqPoLCSr ZyFZPQvJ6llIVixgZFnFKJpakFxQnJReZKRXnJhbXJqXrpecn7uJERizp/8969vBePOA9SFG AQ5GJR7eCeJKIUKsiWXFlbmHGE2BLprILCWanA9MDHkl8YbGZkYWpiamxkbmlmZK4rwJUj+D hQTSE0tSs1NTC1KL4otKc1KLDzEycXBKNTDW+LnkBf/Yrn9P+YeDbqBNVvK5h64/q+5Xtwc4 r52zfOljyWshLzR+CEieE7OqU227qnvEd9n7F3avuVlVmx9PFOs+O/PmZfX7ywrelRvO777L +1ls1t8paTOWdQZKpv3415J5/rrkhpNPmCJ/Zwv0aC7UnD/18mn5wqSIr1n/Lzz35M1VZ4hS YinOSDTUYi4qTgQA2y5nVtQCAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupmleLIzCtJLcpLzFFi42I5/e+xoG5vhVKIwclDVhZLJ15itnj3ucpi y7F7jBYnZnpanJ6wiMli2YPNLBYz591hs9iz9ySLxeVdc9gsWnt+slss6rvF6MDtcWqRhMfm FVoeTWeOMntMOvyZyWP1ha2MHu/3XWXz6NuyitHj8ya5AI6oBkabjNTElNQihdS85PyUzLx0 WyXv4HjneFMzA0NdQ0sLcyWFvMTcVFslF58AXbfMHKAzlRTKEnNKgUIBicXFSvp2mCaEhrjp WsA0Ruj6hgTB9RgZoIGENYwZq38sYC6YxVNxe3lqA+MDzi5GTg4JAROJeXP3MUHYYhIX7q1n A7GFBKYzSmztY+xi5AKy/zJKLN+6nbmLkYODTUBb4s8WUZC4iMB0ZokFR44xgzQICxRJnPu3 ghHEZhFQlXh+eB3YIF4BS4lVnWsZIWxBiR+T77GA2MwCWhLrdx5ngrDlJTavecsMcYSCxI6z r8HqRQT0JPp/bYeqF5HY9+Id4wRG/llIRs1CMmoWklGzkLQsYGRZxSiaWpBcUJyUnmuoV5yY W1yal66XnJ+7iRGcEJ5J7WBc2WBxiFGAg1GJh3eCuFKIEGtiWXFl7iFGCQ5mJRHeE6VAId6U xMqq1KL8+KLSnNTiQ4ymQJ9OZJYSTc4HJqu8knhDYxMzI0sjc0MLI2NzJXHeA63WgUIC6Ykl qdmpqQWpRTB9TBycUg2M8do+Mzs3ZFznzr8VJ14wwbjkUp+j3TY/zVwP45QX848rsegvmJeY eCUu9seOuF1neC+6ywca21Tum1RrGVczU4Wnt8zcfO+fHedFtp1W6dZeNMGqyGIb/7VH3bqT 1n+b9fLzvdbaT2byW62eC1znWtneMWUrf7xrtUhzUcRdwVdMN56//PhbiaU4I9FQi7moOBEA 2zUEWh4DAAA= DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected X-Barracuda-Connect: mailout3.samsung.com[203.254.224.33] X-Barracuda-Start-Time: 1411545231 X-Barracuda-Encrypted: RC4-MD5 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.01 X-Barracuda-Spam-Status: No, SCORE=0.01 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=THREAD_INDEX X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9817 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig== > > FWIW, what we ideally need for these sorts of defrag programs is > per-file freezing. i.e. we freeze the file to be defragged, then do > the copy in userspace, swap/move the copied range and then unfreeze > it once complete. That guarantees that the file is not modified in > any way while userspace is doing the defrag... I am trying to unify xfs_swap extent and ext4 move extent so that both of these could be called via new ioctl mov_data. Both ioctl have different interface because both xfs and ext4 have different way of avoiding change in source file while defrag is running. XFS uses xfs_bstat_t while ext4 performs copying of data within kernel space after taking mutex lock. To make them use same approach, we should use something like file sealing as suggessted by you. First of all, I am trying to find proper way of sealing file as suggested by you. I am considering to use S_IMMUTABLE flag set to avoid file modification during defrag. I am thinking of first syncing dirty pages, then truncating page cache pages of inode and lastly setting immutable flag of inode. This will block further attempts of modifying the file by opening new file pointer but already open file pointer can still change it. Although immutable file mean file can not be modified, there is no immutable check condition in write path and mmap path. I am wondering it is just missing to add immutable check condition or there is other reason I am not aware. Thanks! > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com From fran.tsao@gmail.com Wed Sep 24 03:42:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE, T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 929807F3F for ; Wed, 24 Sep 2014 03:42:21 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 80BDB8F8035 for ; Wed, 24 Sep 2014 01:42:18 -0700 (PDT) X-ASG-Debug-ID: 1411548136-04cb6c50e61127a0001-NocioJ Received: from mail-wi0-f177.google.com (mail-wi0-f177.google.com [209.85.212.177]) by cuda.sgi.com with ESMTP id Y7atORvWRxpTbzoq (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 24 Sep 2014 01:42:16 -0700 (PDT) X-Barracuda-Envelope-From: fran.tsao@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.212.177 X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.177] Received: by mail-wi0-f177.google.com with SMTP id q5so6733003wiv.4 for ; Wed, 24 Sep 2014 01:42:15 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.177] X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.177] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=b8b0oJ/WsOKGnY7MoRCIItqu92R1OEDj2FR7RwLTHG4=; b=fmuVoVTLlnxGzMeIIioyj81JHPiO84APrgHxn5QQVDG8YeRVt/hhYRLqDTKvObYs+w MXG25RwohQvxbSUhLp23CRp5KOAoPzZVx66BH8w4Cr33JuSW6DZrd5VTuiqvssbiXrQe 1Vu5cdZvAXiY6g/jzDPFDFLLlPJIn7U6RKN+Uaf7VPnCFY0gJgWhtPP0Dj3FqcvWLasP nsZAjctHo04fr7rEd92OkHHQGzdoo8BzZIpIjKppshm09Daoa+WKdW4LMw4HV8Hbd7SN 8B9qJ62TMpw+6QTTB9PGz+RJJOurvSpG600+2xmMWMWQjxe0B6khDFy6gyHnnzE9Lg23 0jvA== MIME-Version: 1.0 X-Received: by 10.180.20.20 with SMTP id j20mr4660339wie.18.1411548135731; Wed, 24 Sep 2014 01:42:15 -0700 (PDT) Sender: fran.tsao@gmail.com Received: by 10.216.17.138 with HTTP; Wed, 24 Sep 2014 01:42:15 -0700 (PDT) In-Reply-To: <201409240903.46899.arekm@maven.pl> References: <201409240903.46899.arekm@maven.pl> Date: Wed, 24 Sep 2014 10:42:15 +0200 X-Google-Sender-Auth: zUh6SfoWEutOgMrX1obgNjqSigU Message-ID: Subject: Re: "No space left on device" from hell From: =?UTF-8?Q?Fran_Tsao_Sant=C3=ADn?= X-ASG-Orig-Subj: Re: "No space left on device" from hell To: =?UTF-8?Q?Arkadiusz_Mi=C5=9Bkiewicz?= Cc: xfs@oss.sgi.com Content-Type: multipart/alternative; boundary=bcaec53f398136b64d0503cba94d X-Barracuda-Connect: mail-wi0-f177.google.com[209.85.212.177] X-Barracuda-Start-Time: 1411548136 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9817 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message --bcaec53f398136b64d0503cba94d Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable 2014-09-24 9:03 GMT+02:00 Arkadiusz Mi=C5=9Bkiewicz : > > Hello. > > 3.10.40 kernel and creating files causes "No space left on device". After > deleting some files I can create new files again until the problem happen= s > again. Are you sure the problem is the filesystem device? Maybe you are running a process that fills up another device i.e. shm. --bcaec53f398136b64d0503cba94d Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

= 2014-09-24 9:03 GMT+02:00 Arkadiusz Mi=C5=9Bkiewicz <<= a href=3D"mailto:arekm@maven.pl" target=3D"_blank">arekm@maven.pl>:

Hello.

3.10.40 kernel and creating files causes "No space left on device"= ;. After
deleting some files I can create new files again until the problem happens<= br> again.

Are you sure the problem is the filesystem devi= ce? Maybe you are running a process that fills up another device i.e. shm.

=C2=A0
=
--bcaec53f398136b64d0503cba94d-- From jack@suse.cz Wed Sep 24 03:45:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id A1C1C7F3F for ; Wed, 24 Sep 2014 03:45:26 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 8DD6E8F8033 for ; Wed, 24 Sep 2014 01:45:26 -0700 (PDT) X-ASG-Debug-ID: 1411548322-04cbb0730111f7c0001-NocioJ Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id JyeX9wA9xSuVWHUz (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 24 Sep 2014 01:45:23 -0700 (PDT) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 92B91ABE3; Wed, 24 Sep 2014 08:45:21 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id 8769A81F97; Wed, 24 Sep 2014 10:45:19 +0200 (CEST) Date: Wed, 24 Sep 2014 10:45:19 +0200 From: Jan Kara To: linux-fsdevel@vger.kernel.org Cc: linux-mm@kvack.org, Dave Chinner , linux-ext4@vger.kernel.org, Ted Tso , Jan Kara , xfs@oss.sgi.com Subject: Re: [PATCH 2/2] ext4: Fix mmap data corruption when blocksize < pagesize Message-ID: <20140924084519.GA21987@quack.suse.cz> X-ASG-Orig-Subj: Re: [PATCH 2/2] ext4: Fix mmap data corruption when blocksize < pagesize References: <1411484603-17756-1-git-send-email-jack@suse.cz> <1411484603-17756-3-git-send-email-jack@suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411484603-17756-3-git-send-email-jack@suse.cz> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: cantor2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1411548322 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9818 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header On Tue 23-09-14 17:03:23, Jan Kara wrote: > Use block_create_hole() when hole is being created in a file so that > ->page_mkwrite() will get called for the partial tail page if it is > mmaped (see the first patch in the series for details). Just out of curiosity I did a change similar to this one for ext4 to XFS and indeed it fixed generic/030 test failures for XFS with blocksize 1k. Honza PS: I forgot to CC xfs list in the original posting. You can find the VFS patch e.g. at http://www.spinics.net/lists/linux-mm/msg78976.html > Signed-off-by: Jan Kara > --- > fs/ext4/inode.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c > index 3aa26e9117c4..fdcb007c2c9e 100644 > --- a/fs/ext4/inode.c > +++ b/fs/ext4/inode.c > @@ -4536,8 +4536,12 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr) > ext4_orphan_del(NULL, inode); > goto err_out; > } > - } else > + } else { > + loff_t old_size = inode->i_size; > + > i_size_write(inode, attr->ia_size); > + block_create_hole(inode, old_size, inode->i_size); > + } > > /* > * Blocks are going to be removed from the inode. Wait > -- > 1.8.1.4 > -- Jan Kara SUSE Labs, CR From arekm@maven.pl Wed Sep 24 03:54:15 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id C0BB27F3F for ; Wed, 24 Sep 2014 03:54:15 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 41D98AC006 for ; Wed, 24 Sep 2014 01:54:11 -0700 (PDT) X-ASG-Debug-ID: 1411548849-04cb6c50e6112bf0001-NocioJ Received: from mail-la0-f41.google.com (mail-la0-f41.google.com [209.85.215.41]) by cuda.sgi.com with ESMTP id nNz5jH65uILZCDsx (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 24 Sep 2014 01:54:10 -0700 (PDT) X-Barracuda-Envelope-From: arekm@maven.pl X-Barracuda-Apparent-Source-IP: 209.85.215.41 Received: by mail-la0-f41.google.com with SMTP id s18so10277163lam.14 for ; Wed, 24 Sep 2014 01:54:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=maven.pl; s=maven; h=from:to:subject:date:user-agent:cc:references:in-reply-to :mime-version:content-type:content-transfer-encoding:message-id; bh=LxPvQ6LrmdUQwomvSDIvIWYKK8Rc+6OTcA0RxqI0Bqs=; b=mev7HS+fT1m9efnUqtdMc/2KNN8URVJv3HjkOYiU7Wl/zV4oqeH02kgx6bh9cAbr+T x4elMMVh0Lqu3ky7gFvBNpJUpV1IrOY/aN3Yxd9+1OaI6F0kjg3JoPUXPEfz/o5hADmf Mojj0b6YxSTo3MaUVB+UVbjStxvdQPE43w/jo= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:subject:date:user-agent:cc:references :in-reply-to:mime-version:content-type:content-transfer-encoding :message-id; bh=LxPvQ6LrmdUQwomvSDIvIWYKK8Rc+6OTcA0RxqI0Bqs=; b=KiWo07FbJdrg7MbwVQEEnWYJu/WvwqAcNZY2z4YG5fZ+1SOL3MwnAXz92So4NR+7sq U8nx2Y72R8TqzoXRMpyDM7yG5fLWwyCnmNkyzdvbnaVUCpkwMPVixA44d9IYuvSmmFS6 2rOQlsa2ga2xT3WwInmr7Eth+8/1VwQMpXzJWCRim7Sp3zZYD3ndmRzD4EVi/nRIO2BS FXu5vJ1ap2lduQcZW/KsXJZkbXAOhUqiLbD4waT25HApXtqwFgUV02x0bn19mo+0cJlo H21f7QFJk6mem0fh1Ux7q8r+9GvLM9BU3PGGI4FSMHuqNs7rl9V5G20929YbyGmyonSK irQA== X-Gm-Message-State: ALoCoQlG+stEoHo6y7i3l4OzmKlNZ4aaGpN99TFpSw+IP/onBIEzjUPsEAfShXqnlh+szA2rEtmv X-Received: by 10.112.150.106 with SMTP id uh10mr4683303lbb.11.1411548848480; Wed, 24 Sep 2014 01:54:08 -0700 (PDT) Received: from t400.localnet ([91.234.176.247]) by mx.google.com with ESMTPSA id pw9sm5594758lbb.2.2014.09.24.01.54.07 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 24 Sep 2014 01:54:08 -0700 (PDT) From: Arkadiusz =?utf-8?q?Mi=C5=9Bkiewicz?= To: Fran Tsao =?utf-8?q?Sant=C3=ADn?= Subject: Re: "No space left on device" from hell Date: Wed, 24 Sep 2014 10:54:05 +0200 X-ASG-Orig-Subj: Re: "No space left on device" from hell User-Agent: KMail/1.13.7 (Linux/3.17.0-rc6; KDE/4.14.0; x86_64; ; ) Cc: xfs@oss.sgi.com References: <201409240903.46899.arekm@maven.pl> In-Reply-To: MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <201409241054.06983.arekm@maven.pl> X-Barracuda-Connect: mail-la0-f41.google.com[209.85.215.41] X-Barracuda-Start-Time: 1411548849 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9818 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Wednesday 24 of September 2014, Fran Tsao Sant=C3=ADn wrote: > 2014-09-24 9:03 GMT+02:00 Arkadiusz Mi=C5=9Bkiewicz : > > Hello. > >=20 > > 3.10.40 kernel and creating files causes "No space left on device". Aft= er > > deleting some files I can create new files again until the problem > > happens again. >=20 > Are you sure the problem is the filesystem device? Maybe you are running a > process that fills up another device i.e. shm. Dave Chinner figured out the problem already (on irc). Basically this fs was grown from 300GB to 600GB but due to bug (fixed by=20 commit 9de67c3 ("xfs: allow inode allocations in post-growfs disk space"))= =20 that new space was never used for new inodes. So ended up with full AGs 0-3 (xfs_db -r -c "freesp -s -a XX" /dev/xyz sho= ws=20 that for each AG XX). =46s was never unmounted after grows but fortunately mount -o remount,inode= 32=20 =2E.. followed by mount -o remount,inode64 cured it without a need to reboo= t, so=20 now new inodes are distributed to all AGs. I still need to free some space in AGs 0-3 though (by moving data to new di= rs=20 allocated in new AGs; xfs_db -r -c "convert inode DIR_INODE_NR agno" /dev/x= yz=20 shows in which AG new dir got allocated). There are more bugs hiding (like if ENOSPC on some AG happens it should try= =20 next AG instead of failing). Dave knows all that magic. Big thanks to Dave! =2D-=20 Arkadiusz Mi=C5=9Bkiewicz, arekm / maven.pl From jack@suse.cz Wed Sep 24 03:57:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 814757F4E for ; Wed, 24 Sep 2014 03:57:37 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 60D62304039 for ; Wed, 24 Sep 2014 01:57:34 -0700 (PDT) X-ASG-Debug-ID: 1411549046-04cb6c50e5112e00001-NocioJ Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id IkcHB3CGRDXlohY4 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 24 Sep 2014 01:57:27 -0700 (PDT) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 1D8C0ACCD; Wed, 24 Sep 2014 08:57:26 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id 241B381F97; Wed, 24 Sep 2014 10:57:24 +0200 (CEST) Date: Wed, 24 Sep 2014 10:57:24 +0200 From: Jan Kara To: linux-fsdevel@vger.kernel.org Cc: linux-mm@kvack.org, Dave Chinner , linux-ext4@vger.kernel.org, Ted Tso , Jan Kara , xfs@oss.sgi.com Subject: Re: [PATCH 2/2] ext4: Fix mmap data corruption when blocksize < pagesize Message-ID: <20140924085724.GA21864@quack.suse.cz> X-ASG-Orig-Subj: Re: [PATCH 2/2] ext4: Fix mmap data corruption when blocksize < pagesize References: <1411484603-17756-1-git-send-email-jack@suse.cz> <1411484603-17756-3-git-send-email-jack@suse.cz> <20140924084519.GA21987@quack.suse.cz> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="MGYHOYXEY6WxJCY8" Content-Disposition: inline In-Reply-To: <20140924084519.GA21987@quack.suse.cz> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: cantor2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1411549046 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9818 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header --MGYHOYXEY6WxJCY8 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Wed 24-09-14 10:45:19, Jan Kara wrote: > On Tue 23-09-14 17:03:23, Jan Kara wrote: > > Use block_create_hole() when hole is being created in a file so that > > ->page_mkwrite() will get called for the partial tail page if it is > > mmaped (see the first patch in the series for details). > Just out of curiosity I did a change similar to this one for ext4 to XFS > and indeed it fixed generic/030 test failures for XFS with blocksize 1k. Just for reference attached the patch I was testing - I can resend with proper changelog etc. if people are fine with this approach. Honza > > Signed-off-by: Jan Kara > > --- > > fs/ext4/inode.c | 6 +++++- > > 1 file changed, 5 insertions(+), 1 deletion(-) > > > > diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c > > index 3aa26e9117c4..fdcb007c2c9e 100644 > > --- a/fs/ext4/inode.c > > +++ b/fs/ext4/inode.c > > @@ -4536,8 +4536,12 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr) > > ext4_orphan_del(NULL, inode); > > goto err_out; > > } > > - } else > > + } else { > > + loff_t old_size = inode->i_size; > > + > > i_size_write(inode, attr->ia_size); > > + block_create_hole(inode, old_size, inode->i_size); > > + } > > > > /* > > * Blocks are going to be removed from the inode. Wait > > -- > > 1.8.1.4 > > > -- > Jan Kara > SUSE Labs, CR > -- > To unsubscribe from this list: send the line "unsubscribe linux-ext4" 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 --MGYHOYXEY6WxJCY8 Content-Type: text/x-patch; charset=us-ascii Content-Disposition: attachment; filename="0001-xfs-Fix-mmap-data-corruption.patch" >From ceedc36b1c99c25ebb55c88f6ab059347b52f4ec Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 24 Sep 2014 10:18:25 +0200 Subject: [PATCH] xfs: Fix mmap data corruption Signed-off-by: Jan Kara --- fs/xfs/xfs_iops.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index 72129493e9d3..19ce64bfb4f7 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -848,6 +848,8 @@ xfs_setattr_size( if (error) return error; truncate_setsize(inode, newsize); + if (oldsize < newsize) + block_create_hole(inode, oldsize, newsize); tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_SIZE); error = xfs_trans_reserve(tp, &M_RES(mp)->tr_itruncate, 0, 0); -- 1.8.1.4 --MGYHOYXEY6WxJCY8-- From eflorac@intellique.com Wed Sep 24 05:06:09 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C012A7F3F for ; Wed, 24 Sep 2014 05:06:09 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id AD335304032 for ; Wed, 24 Sep 2014 03:06:06 -0700 (PDT) X-ASG-Debug-ID: 1411553164-04cb6c50e7114910001-NocioJ Received: from mail1.g1.pair.com (mail1.g1.pair.com [66.39.3.162]) by cuda.sgi.com with ESMTP id FBMua7kqZaszWOhn (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 24 Sep 2014 03:06:05 -0700 (PDT) X-Barracuda-Envelope-From: eflorac@intellique.com X-Barracuda-Apparent-Source-IP: 66.39.3.162 Received: from localhost (localhost [127.0.0.1]) by mail1.g1.pair.com (Postfix) with SMTP id 669CB2C14F; Wed, 24 Sep 2014 06:06:04 -0400 (EDT) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) by mail1.g1.pair.com (Postfix) with ESMTPSA id 5422C2BF2E; Wed, 24 Sep 2014 06:06:03 -0400 (EDT) Date: Wed, 24 Sep 2014 12:08:40 +0200 From: Emmanuel Florac To: Diane Trout Cc: xfs@oss.sgi.com Subject: Re: Corrupted file system Message-ID: <20140924120840.1be78240@harpe.intellique.com> X-ASG-Orig-Subj: Re: Corrupted file system In-Reply-To: <5839367.DyqsVHbRuQ@myrada> References: <5839367.DyqsVHbRuQ@myrada> Organization: Intellique X-Mailer: Claws Mail 3.10.0 (GTK+ 2.24.20; i486-slackware-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail1.g1.pair.com[66.39.3.162] X-Barracuda-Start-Time: 1411553165 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9819 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Le Tue, 23 Sep 2014 15:02:57 -0700 Diane Trout =C3=A9crivait: > I had a raid failure at work that ended up corrupting an xfs > filesystem the tail of the xfs_repair command looks like the below. I > was able to generate a metadata dump but is there a point to making > it available?=20 >=20 > It does crash repeatedly at the same place Did you try the very latest xfs_repair? --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From olaf@sgi.com Wed Sep 24 06:07:43 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E2B227F3F for ; Wed, 24 Sep 2014 06:07:43 -0500 (CDT) Received: from xmail.sgi.com (pv-excas1-dc21.corp.sgi.com [137.38.106.7]) by relay2.corp.sgi.com (Postfix) with ESMTP id C0A26304039; Wed, 24 Sep 2014 04:07:40 -0700 (PDT) Received: from [144.253.208.77] (144.253.208.77) by xmail.sgi.com (137.38.106.6) with Microsoft SMTP Server (TLS) id 14.3.195.1; Wed, 24 Sep 2014 06:07:40 -0500 Message-ID: <5422A5F8.5040703@sgi.com> Date: Wed, 24 Sep 2014 13:07:36 +0200 From: Olaf Weber Organization: SGI User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.1 MIME-Version: 1.0 To: Andi Kleen CC: Ben Myers , , , Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS References: <20140918195650.GI19952@sgi.com> <87lhpbhfgg.fsf@tassilo.jf.intel.com> <20140922184145.GH4482@sgi.com> <20140922192958.GJ4120@two.firstfloor.org> <54219C17.3090104@sgi.com> <20140923201540.GB15923@two.firstfloor.org> In-Reply-To: <20140923201540.GB15923@two.firstfloor.org> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [144.253.208.77] On 23-09-14 22:15, Andi Kleen wrote: >> A big part of the table does decompositions for Korean: eliminating >> the Hangul decompositions removes 156320 bytes, leaving 89936 bytes. > > Are there regular ranges or other redundancies in the Korean encoding > that could be used to compress paths? Yes, though at the expense of more complicated code and interfaces. in particular, lookups that want a normalized string would need to provide a 10-byte buffer to store it in. > Doing some basic research other people already answered this: > > Please use the ICU or google tables referenced below. Apparently > smaller is possible too, but 40-50k seems more reasonable. Riffing off the http://macchiato.com/unicode/normalization_footprint.htm link you provided, looking at the NFKD case. For Unicode 3.0.0 that link gives 3483 NFKD normalizations (exlcuding Hangul), and gives 26,918 bytes as the size of a simple lookup table (key/offset pairs, with the offset pointing into a string table). In Unicode 7.0.0 I count 5721 NFKD normalizations (again excluding Hangul). As NUL-terminated UTF-8 strings these take 23390 bytes. Using a key-offset table I need 3 bytes for the key (code points are 21 bits) and 2 bytes for an offset. Total is 5721 * (3 + 2) + 23390 = 51995 bytes. Stealing 4 bits from the key field and 1 from the offset to store the size of the normalized string I can remove the NUL bytes from the string table and reduce total size to 46274 bytes. The trie implementation used here would use 66283 bytes to store the same information, but it also provides unicode version and canonical combining class for all codepoints. There are 10268 leaves in this case, with the size of each leaf being 1 byte for version, one for ccc, plus the size of the decomposition, if any. So a quick estimate on the space used just for the NFKD data is some 45747 bytes. I'm pretty certain that a trie that only stores the NFKD would be smaller than 45747 bytes as it would need fewer internal nodes, but didn't do the experiment. But as you can see, for just the NFKD part and excluding Hangul, the size of the trie is within the ballpark of the numbers you gave. Case folding adds a partial trie that forwards to the "main" trie for parts that are identical. This adds 2672 extra leaves and 20171 extra bytes. The data for the normalization corrections adds another 3328 bytes. With a bit of rounding, total size comes to 89840 bytes. > I'm just gonna make the claim that whatever performance you > get from a larger table is dwarfed by the cache miss overhead. That's possible, though it seems plausible you'd only suffer from this doing actual Hangul decomposition: all the data related to this (trie nodes, trie leaves, and strings) sits in one contiguous block in memory. Olaf -- Olaf Weber SGI Phone: +31(0)30-6696796 Veldzigt 2b Fax: +31(0)30-6696799 Technical Lead 3454 PW de Meern Vnet: 955-6796 Storage Software The Netherlands Email: olaf@sgi.com From bfoster@redhat.com Wed Sep 24 07:28:00 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D58C97F3F for ; Wed, 24 Sep 2014 07:28:00 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id A75888F8037 for ; Wed, 24 Sep 2014 05:27:57 -0700 (PDT) X-ASG-Debug-ID: 1411561676-04bdf003a212b790001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id jZPObEl3kQy7BydJ (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 24 Sep 2014 05:27:56 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8OCRmjS003430 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 24 Sep 2014 08:27:48 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8OCRl7c019592; Wed, 24 Sep 2014 08:27:48 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id D95D1120064; Wed, 24 Sep 2014 08:27:46 -0400 (EDT) Date: Wed, 24 Sep 2014 08:27:46 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [RFC PATCH] xfs: borrow indirect blocks from freed extent when available Message-ID: <20140924122746.GA53094@bfoster.bfoster> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: borrow indirect blocks from freed extent when available References: <1411500538-6831-1-git-send-email-bfoster@redhat.com> <20140923215816.GC4322@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140923215816.GC4322@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411561676 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Sep 24, 2014 at 07:58:16AM +1000, Dave Chinner wrote: > On Tue, Sep 23, 2014 at 03:28:58PM -0400, Brian Foster wrote: > > xfs_bmap_del_extent() handles extent removal from the in-core and > > on-disk extent lists. When removing a delalloc range, it updates the > > indirect block reservation appropriately based on the removal. It > > currently enforces that the new indirect block reservation is less than > > or equal to the original. This is normally the case in all situations > > except for when the removed range creates a hole in a single delalloc > > extent, thus splitting a single delalloc extent in two. > > > > The indirect block reservation is divided evenly between the two new > > extents in this scenario. However, it is possible with small enough > > extents to split an indlen==1 extent into two such slightly smaller > > extents. This leaves one extent with 0 indirect blocks and leads to > > assert failures in other areas (e.g., xfs_bunmapi() if the extent > > happens to be removed). > > I had long suspected we had an issue in this code, but was never > able to nail down a reproducer that triggered it. Do you have a > reproducer, or did you find this by reading/tracing the code? > I have a setup on which fsx reproduces an instance of this within a few minutes consistently. It looks like the same sequence of events each occurrence so I can try to derive a more specific test case for it. I suspect the right sequence of delayed allocation followed by hole punching or zeroing should be able to trigger it. > > Refactor xfs_bunmapi() to make the updates that must be consistent > > against the inode (e.g., delalloc block counter, quota reservation) > > right before the extent is deleted. Move the sb block counter update > > after the extent is deleted and update xfs_bmap_del_extent() to steal > > some blocks from the freed extent if a larger overall indirect > > reservation is required by the extent removal. > > > > Signed-off-by: Brian Foster > > --- > > > > Hi all, > > > > I'm seeing the following assert more frequently with fsx and the recent > > xfs_free_file_space() changes (at least on 1k fsb fs'): > > > > XFS: Assertion failed: startblockval(del.br_startblock) > 0, file: fs/xfs/libxfs/xfs_bmap.c, line: 5281 > > > > This occurs for the reason described in the commit log description. This > > is a quick experiment I wanted to test to verify the problem goes away > > (so far, so good). Very lightly tested so far. > > I suspect it's also the cause of these occasional assert failures > that I see: > > XFS: Assertion failed: tp->t_blk_res_used <= tp->t_blk_res, file: fs/xfs/xfs_trans.c, line: 327 > > during delalloc conversion because there wasn't a space reservation > for the blocks allocated (i.e. indlen was zero) and so we overrun > the transaction block reservation. > Interesting, I've seen this as well though I'll have to go back and see where I was getting it from. I did run fsx overnight without any assert failures at all, which seems rare lately. ;) I wasn't running my usual parallel fsstress however. I've started that and I reproduce an instance of that assert failure within a few minutes, so if related it appears this might not be the only contributer. I'll look more into that one next. > > I'm not too fond of changing br_blockcount like this. It seems like a > > potential landmine. Alternative approaches could be to kill the assert > > if we think indlen==0 extents is not a huge problem in this scenario, > > A delalloc extent always needs a reservation.... > Ok. > > update the counters independently in xfs_bmap_del_extent() to get the > > needed blocks or pass a separate output parameter rather than messing > > with br_blockcount (e.g., '*ofreedblks'). The latter might mean we could > > just move the entire hunk that updates the inode/quota and whatnot > > rather than splitting it up. > > > > I wanted to put this on the list for comments. Thoughts? Other ideas? > > Thanks. > > > > Brian > > > > fs/xfs/libxfs/xfs_bmap.c | 64 ++++++++++++++++++++++++++++++------------------ > > 1 file changed, 40 insertions(+), 24 deletions(-) > > > > diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c > > index 86df952..1858e6b 100644 > > --- a/fs/xfs/libxfs/xfs_bmap.c > > +++ b/fs/xfs/libxfs/xfs_bmap.c > > @@ -4969,6 +4969,11 @@ xfs_bmap_del_extent( > > temp2 = xfs_bmap_worst_indlen(ip, temp2); > > new.br_startblock = nullstartblock((int)temp2); > > da_new = temp + temp2; > > + /* pull blocks from extent to make up the difference */ > > + while (da_new > da_old && del->br_blockcount) { > > + del->br_blockcount--; > > + da_new--; > > + } > > while (da_new > da_old) { > > if (temp) { > > temp--; > > So this is the crux of the fix, right? The block stealing from the > deleted extent? I have no objections to doing this given that we > already munge the indirect reservations inteh loop below, but > I think we should make this cleaner and more understandable. i.e. > refactor the indlen adjustment code into a helper, and integrate the > block stealing into the existing adjustment loop? > Yes, the problem is that we basically split the existing reservation amongst the new extents. The 'punch a hole in a small delalloc extent' scenario can mean we have to split 1 indlen block across two extents, thus creating the indlen==0 condition for one of the two. IOW, the existing reservation doesn't always cover the requirements of the new extent(s). If the fundamental fix is sane I'll look into the associated cleanups. Thanks for the feedback. > > @@ -5277,9 +5282,37 @@ xfs_bunmapi( > > goto nodelete; > > } > > } > > + > > + /* > > + * If it's the case where the directory code is running > > + * with no block reservation, and the deleted block is in > > + * the middle of its extent, and the resulting insert > > + * of an extent would cause transformation to btree format, > > + * then reject it. The calling code will then swap > > + * blocks around instead. > > + * We have to do this now, rather than waiting for the > > + * conversion to btree format, since the transaction > > + * will be dirty. > > + */ > > + if (!wasdel && xfs_trans_get_block_res(tp) == 0 && > > + XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS && > > + XFS_IFORK_NEXTENTS(ip, whichfork) >= /* Note the >= */ > > + XFS_IFORK_MAXEXT(ip, whichfork) && > > + del.br_startoff > got.br_startoff && > > + del.br_startoff + del.br_blockcount < > > + got.br_startoff + got.br_blockcount) { > > + error = -ENOSPC; > > + goto error0; > > + } > > + > > + /* > > + * Unreserve quota and update realtime free space, if > > + * appropriate. If delayed allocation, update the inode delalloc > > + * counter now and wait to update the sb counters as > > + * xfs_bmap_del_extent() might need to borrow some blocks. > > + */ > > if (wasdel) { > > ASSERT(startblockval(del.br_startblock) > 0); > > - /* Update realtime/data freespace, unreserve quota */ > > if (isrt) { > > xfs_filblks_t rtexts; > > > > Perhaps this should be separated into it's own patch that is applied > first? It doesn't seem to be directly related to the accounting fix... > Yeah, I actually have this as an independent patch and initial cleanup in my dev. branch and I just squashed everything to send off here. This was probably unnecessary to propose the fundamental fix. Sorry for the added noise. Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From olaf@sgi.com Wed Sep 24 08:21:10 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D89BD7F3F for ; Wed, 24 Sep 2014 08:21:10 -0500 (CDT) Received: from xmail.sgi.com (pv-excas1-dc21.corp.sgi.com [137.38.106.7]) by relay2.corp.sgi.com (Postfix) with ESMTP id 6D65C304032; Wed, 24 Sep 2014 06:21:07 -0700 (PDT) Received: from [144.253.208.77] (144.253.208.77) by xmail.sgi.com (137.38.106.6) with Microsoft SMTP Server (TLS) id 14.3.195.1; Wed, 24 Sep 2014 08:21:06 -0500 Message-ID: <5422C540.1060007@sgi.com> Date: Wed, 24 Sep 2014 15:21:04 +0200 From: Olaf Weber Organization: SGI User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.1 MIME-Version: 1.0 To: Dave Chinner , Ben Myers CC: , , Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS References: <20140918195650.GI19952@sgi.com> <20140922222611.GZ4322@dastard> In-Reply-To: <20140922222611.GZ4322@dastard> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [144.253.208.77] On 23-09-14 00:26, Dave Chinner wrote: > On Thu, Sep 18, 2014 at 02:56:50PM -0500, Ben Myers wrote: [...] >> TODO: Store the unicode version number of the filesystem on disk in the >> super block. > > So, if the filesystem has to store the specific unicode version it > was created with so that we know what version to put in trie > lookups, again I'll ask: why are we loading the trie as a generic > kernel module and not as metadata in the filesystem that is demand > paged and cached? This way the trie can be shared, and the code using it is not entangled with the XFS code. > i.e. put the entire trie on disk, look up the specific conversion > required for the name being compared, and then cache that conversion > in memory. This makes repeated lookups much faster because the trie > only contains conversions that are in use, the memory footprint is > way lower and the conversions are guaranteed to be consistent for > the life of the filesystem.... Above you mention demand paging parts of the trie, but here you seem to suggest creating an in-core conversion table on the fly from data read from disk. The former seems a lot easier to do than the latter. >> Here are Olaf's design notes: >> >> ----------------------------------------------------------------------------- >> Unicode/UTF-8 support for XFS >> >> So we had a customer request proper unicode support... >> >> >> * What does "supporting unicode" actually mean? >> >> From a text processing point of view, what a filesystem does with >> filenames is simple: it stores and retrieves them, and compares them >> for equality. It may reject certain byte sequences as invalid >> filenames (for example, no filename can contain an ASCII NUL). >> >> I've been taking it as a given that when a file is created with a >> certain byte sequence as its name, then a subsequent directory listing >> will contain that same byte sequence among the names listed. >> >> This leaves comparing names for equality, and in my view this is what >> "supporting unicode" revolves about. >> >> The present state of affairs is that different byte sequences are >> different filenames. This amounts to tolerating unicode without >> actually supporting it. > > That's somewhat circular - using your own definition of "supported" > to argue that your own definition is the right one.... > >> To support unicode we have to interpret filenames. What happens when >> (part of) a filename cannot be interpreted? We can reject the >> filename, interpret the parts we can, or punt and accept it as an >> uninterpreted blob. >> >> Rejecting ill-formed filenames was my first choice, but I came around >> on the issue: there are too many ways in which you can end up with >> having to deal with ill-formed filenames that would leave a user with >> no recourse but to move whatever they're doing to a different >> filesystem. Unpacking a tarball with filenames in a different encoding >> is an example. > > You still haven't addressed this: > > | So we accept invalid unicode in filenames, but only after failing to > | parse them? Isn't this a potential vector for exploiting weaknesses > | in application filename handling? i.e. unprivileged user writes > | specially crafted invalid unicode filename to disk, setuid program > | tries to parse it, invalid sequence triggers a buffer overflow bug > | in setuid parser? > > apart from handwaving that userspace has to be able to handle > invalid utf-8 already. Why should we let filesystems say "we fully > understand and support utf8" and then allow them to accept and > propagate invalid utf8 sequences and leave everyone else to have to > clean up the mess? Because the alternative amounts in my opinion to a demand that every bit of userspace that may be involved in generating filenames generate only clean UTF-8. I do not believe that this is a realistic demand at this point in time. >> Partial interpretation of an ill-formed filename just strikes me as >> the kind of bad idea that most half-houses are. I admit that I have no >> stronger objection to this than the fact that it makes the code even >> more complicated and fragile. >> >> Which leaves "blob" as the preferred option by default for coping with >> ill-formed filenames. > > And so can't be case-folded, leading to inconsistent behaviour of > case-insensitive filename comparisons. > > I don't blindly subscribe to the robustness principle of "be liberal > with what you accept". Being liberal means accepting malformed junk > and then trying to make good. It's a fool's game - we've learnt time > and time again that if we don't fully validate string inputs that we > have to interpret then someone will find an exploit that utilises > malformed strings. I don't think we should expose core kernel code > to such structural weaknesses... This is why I prefer not to interpret strings that are not UTF-8. I just don't think we can afford to outright reject them. >> When comparing well-formed filenames, the question now becomes which >> byte sequences are considered to be alternative spellings of the same >> filename. This is where normalization forms come into play, and the >> unicode standard has quite a bit to say about the subject. >> >> If all you're doing is comparison, then choosing NFD over NFC is easy, >> because the former is easier to calculate than the latter. >> >> If you want various spellings of "office" to compare equal, then >> picking NFKD over NFD for comparison is also an obvious >> choice. (Hand-picking individual compatibility forms is truly a bad >> idea.) Ways to spell "office": "o_f_f_i_c_e", "o_f_fi_c_e", and >> "o_ffi_c_e", using no ligatures, the fi ligature, or the ffi >> ligature. (Some fool thought it a good idea to add these ligatures to >> unicode, all we get to decide is how to cope.) > > Yet normalised strings are only stable and hence comparable > if there are no unassigned code points in them. What happens when > userspace is not using the same version of unicode as the > filesystem and is using newer code points in it's strings? > Normalisation fails, right? For the newer code points, yes. This is not treated as a failure to normalize the string as a whole, as there are clear guidelines in unicode on how unassigned code points interact with normalization: they have canonical combining class 0 and no decomposition. > And as an extension of using normalisation for case-folded > comparisons, how do we make case folding work with blobs that can't > be normalised? It seems to me that this just leads to the nasty > situation where some filenames are case sensitive and some aren't > based on what the filesystem thinks is valid utf-8. The worst part > is that userspace has no idea that the filesystem is making such > distinctions and so behaviour is not at all predictable or expected. Making case-folding work on a blob that cannot be normalized is (in my opinion) akin to doing an ASCII-based casefold on a Shift-JIS string: the result is neither pretty nor useful. > This is another point in favour of rejecting invalid utf-8 strings > and for keeping the translation tables stable within the > filesystem... Bear in mind that this means not just rejecting invalid UTF-8 strings, but also rejecting valid UTF-8 strings that encode unassigned code points. This should be easy to implement if it is decided that we want to do this. >> The most contentious part is (should be) ignoring the codepoints with >> the Default_Ignorable_Code_Point property. I've included the list >> below. My argument, such as it is, is that these code points either >> have no visible rendering, or in cases like the soft hyphen, are only >> conditionally visible. The problem with these (as I see it) is that on >> seeing a filename that might contain them you cannot tell whether they >> are present. So I propose to ignore them for the purpose of comparing >> filenames for equality. > > Which introduces a non-standard "visibility criterial" for > determining what should be or shouldn't be part of the normalised > string for comparison. I don't see any real justification for > stepping outside the standard unicode normalisation here - just > because the user cannot see a character in a specific context does > not mean that it is not significant to the application that created > it. I agree these characters may be significant to the application. I'm just not convinced that they should be significant in a file name. >> Finally, case folding. First of all, it is optional. Then the issue is >> that you either go the language-specific route, or simplify the task >> by "just" doing a full casefold (C+F, in unicode parlance). Looking >> around the net I tend to find that if you're going to do casefolding >> at all, then a language-independent full casefold is preferred because >> it is the most predictable option. See >> http://www.w3.org/TR/charmod-norm/ for an example of that kind of >> reasoning. > > Which says in section 2.4: "Some languages need case-folding to be > tailored to meet specific linguistic needs". That implies that the > case folding needs to be language aware and hence needs to be tied > into the NLS subsystem for handling specific quirks like Turkic. It also recommends just doing a full case fold for cases where you are ignorant of the language actually in use. In section 3.1 they say: "However, language-sensitive case-sensitive matching in document formats and protocols is NOT RECOMMENDED because language information can be hard to obtain, verify, or manage and the resulting operations can produce results that frustrate users." This doesn't exactly address the case of filesystems, but as far as I know there is no defined interface that allows kernel code to query the locale settings that currently apply to a userspace process. > I also note that it says in several places that C+F can result in a > folded string of a different length. What happens when that folded > string is longer than 255 bytes and hence longer than NAME_MAX? > That's a bit of a nasty landmine for pathname string handling > functions - developers are going to assume that pathname components > are not longer than NAME_MAX, and if we are passing normalised > strings around that is not a valid assumption.... This is not just true for case folding: normalization may also change string length, and NFD or NFKD will typically increase the length. That is among the reasons why normalized and case folded strings are not stored on disk, and are not passed up to other parts of the kernel. The code posted will generate a normalized version of the user-provided string used to look up data as a way to cache that normalization and to reduce stack pressure a bit, but this string is ephemeral and discarded once lookup is complete. >> * XFS-specific design notes. > ... >> If the borgbit (the bit enabling legacy ASCII-based CI in XFS) is set >> in the superblock, then case folding is added into the mix. This is >> the nfkdicf normalization form mentioned above. It allows for the >> creation of case-insensitive filesystems with UTF-8 support. > > Please don't overload existing superblock feature bits with multiple > meanings. ASCII-CI is a stand-alone feature and is not in any way > compatible with Unicode: Unicode-CI is a superset of Unicode > support. So it really needs two new feature bits for Unicode and > Unicode-CI, not just one for unicode. It seemed an obvious extension of the meaning of that bit. Olaf -- Olaf Weber SGI Phone: +31(0)30-6696796 Veldzigt 2b Fax: +31(0)30-6696799 Technical Lead 3454 PW de Meern Vnet: 955-6796 Storage Software The Netherlands Email: olaf@sgi.com From tessarek@evermeet.cx Wed Sep 24 10:54:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 021D57F3F for ; Wed, 24 Sep 2014 10:54:11 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id C223E8F8035 for ; Wed, 24 Sep 2014 08:54:07 -0700 (PDT) X-ASG-Debug-ID: 1411574039-04bdf003a1134590001-NocioJ Received: from atvie01s.evermeet.cx (evermeet.cx [77.244.245.66]) by cuda.sgi.com with ESMTP id FMs6nCbGC64UDayt (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 24 Sep 2014 08:54:00 -0700 (PDT) X-Barracuda-Envelope-From: tessarek@evermeet.cx X-Barracuda-Apparent-Source-IP: 77.244.245.66 Received: from [192.168.9.65] (mail.quickplay.com [66.207.196.66]) (authenticated bits=0) by atvie01s.evermeet.cx (8.14.9/8.14.9) with ESMTP id s8OFrsa3015252 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Wed, 24 Sep 2014 17:53:55 +0200 Message-ID: <5422E912.1000708@evermeet.cx> Date: Wed, 24 Sep 2014 11:53:54 -0400 From: Helmut Tessarek User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:31.0) Gecko/20100101 Thunderbird/31.1.1 MIME-Version: 1.0 To: Stan Hoeppner , Eric Sandeen , xfs@oss.sgi.com Subject: Re: How to format RAID1 correctly References: <5422146A.90206@evermeet.cx> <54222763.40107@sandeen.net> <5422285B.6010306@evermeet.cx> <542234F6.4080000@hardwarefreak.com> <5422376D.3000204@evermeet.cx> <542243E6.1040302@hardwarefreak.com> X-ASG-Orig-Subj: Re: How to format RAID1 correctly In-Reply-To: <542243E6.1040302@hardwarefreak.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: evermeet.cx[77.244.245.66] X-Barracuda-Start-Time: 1411574040 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9828 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 2014-09-24 0:09, Stan Hoeppner wrote: > If you create any striped arrays, especially parity arrays, with md make > sure to manually specify chunk size and match it to your workload. The > current default is 512KB. This is too large for a great many workloads, > specifically those that are metadata heavy or manipulate many small > files. 512KB wastes space and with parity arrays causes RMW, hammering > throughput and increasing latency. Thanks again for the valueable information. I used to work with databases on storage subsystems, so placing GBs of database containers for tableapaces on arrays with a larger stripe size was actually beneficial. For log files and other data I usually used different cache settings and strip sizes. So how does this work with SW RAID? Does the XFS chunk size equal the amount of data touched by a single r/w operation? I'm asking because data is usually written in page/extent sizes for databases. Even if I have a container with 50GB, I might only have to read/write a 4k page. Cheers, K. C. -- regards Helmut K. C. Tessarek lookup http://sks.pkqs.net for KeyID 0xC11F128D /* Thou shalt not follow the NULL pointer for chaos and madness await thee at its end. */ From sandeen@sandeen.net Wed Sep 24 11:18:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E7CB97F47 for ; Wed, 24 Sep 2014 11:18:22 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id C7E6A8F8039 for ; Wed, 24 Sep 2014 09:18:19 -0700 (PDT) X-ASG-Debug-ID: 1411575497-04bdf003a2135940001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id Ldo6vJ5Kmyp0BW7H for ; Wed, 24 Sep 2014 09:18:17 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 6C3B363D22A4; Wed, 24 Sep 2014 11:18:17 -0500 (CDT) Message-ID: <5422EECA.10301@sandeen.net> Date: Wed, 24 Sep 2014 11:18:18 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Helmut Tessarek , Stan Hoeppner , xfs@oss.sgi.com Subject: Re: How to format RAID1 correctly References: <5422146A.90206@evermeet.cx> <54222763.40107@sandeen.net> <5422285B.6010306@evermeet.cx> <542234F6.4080000@hardwarefreak.com> <5422376D.3000204@evermeet.cx> <542243E6.1040302@hardwarefreak.com> <5422E912.1000708@evermeet.cx> X-ASG-Orig-Subj: Re: How to format RAID1 correctly In-Reply-To: <5422E912.1000708@evermeet.cx> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1411575497 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9828 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/24/14 10:53 AM, Helmut Tessarek wrote: > On 2014-09-24 0:09, Stan Hoeppner wrote: >> If you create any striped arrays, especially parity arrays, with md make >> sure to manually specify chunk size and match it to your workload. The >> current default is 512KB. This is too large for a great many workloads, >> specifically those that are metadata heavy or manipulate many small >> files. 512KB wastes space and with parity arrays causes RMW, hammering >> throughput and increasing latency. > > Thanks again for the valueable information. > > I used to work with databases on storage subsystems, so placing GBs of > database containers for tableapaces on arrays with a larger stripe size > was actually beneficial. > For log files and other data I usually used different cache settings and > strip sizes. > > So how does this work with SW RAID? > > Does the XFS chunk size equal the amount of data touched by a single r/w > operation? It has more to do with where allocations start, so that allocations don't cross stripe boundaries if possible. -Eric From jack@suse.cz Wed Sep 24 11:25:12 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 0E58A7F4E for ; Wed, 24 Sep 2014 11:25:12 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id EEF618F8037 for ; Wed, 24 Sep 2014 09:25:11 -0700 (PDT) X-ASG-Debug-ID: 1411575909-04cb6c50e5122320001-NocioJ Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id eTDAwEUgKsy73nIP (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 24 Sep 2014 09:25:10 -0700 (PDT) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 0725AAAF3; Wed, 24 Sep 2014 16:25:09 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id 22D9181F97; Wed, 24 Sep 2014 18:25:07 +0200 (CEST) Date: Wed, 24 Sep 2014 18:25:07 +0200 From: Jan Kara To: Li Xi Cc: linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-api@vger.kernel.org, tytso@mit.edu, adilger@dilger.ca, jack@suse.cz, viro@zeniv.linux.org.uk, hch@infradead.org, dmonakhov@openvz.org, xfs@oss.sgi.com Subject: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project Message-ID: <20140924162507.GC27000@quack.suse.cz> X-ASG-Orig-Subj: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project References: <1411567470-31799-1-git-send-email-lixi@ddn.com> <1411567470-31799-5-git-send-email-lixi@ddn.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411567470-31799-5-git-send-email-lixi@ddn.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: cantor2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1411575909 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9828 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed 24-09-14 22:04:30, Li Xi wrote: > This patch adds ioctl interface for setting/getting project of ext4. The patch looks good to me. I was just wondering whether it won't be useful to add an ioctl() which isn't ext4 specific. We could just extend ->setattr() to allow setting of project ID (most filesystems would just return -EOPNOTSUPP but ext4 and xfs could do the right thing) and then call ->setattr from the generic ioctl. That way userspace won't have to care about filesystem type when setting project ID... What do others think? Honza > Signed-off-by: Li Xi > --- > Documentation/filesystems/ext4.txt | 4 ++ > fs/ext4/ext4.h | 2 + > fs/ext4/ioctl.c | 85 ++++++++++++++++++++++++++++++++++++ > 3 files changed, 91 insertions(+), 0 deletions(-) > > diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt > index 919a329..9c98e62 100644 > --- a/Documentation/filesystems/ext4.txt > +++ b/Documentation/filesystems/ext4.txt > @@ -609,6 +609,10 @@ EXT4_IOC_SWAP_BOOT Swap i_blocks and associated attributes > The data blocks of the previous boot loader > will be associated with the given inode. > > + EXT4_IOC_GETPROJECT Get project ID associated with inode. > + > + EXT4_IOC_SETPROJECT Set Project ID associated with inode. > + > .............................................................................. > > References > diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h > index f8be9bf..51946fd 100644 > --- a/fs/ext4/ext4.h > +++ b/fs/ext4/ext4.h > @@ -617,6 +617,8 @@ enum { > #define EXT4_IOC_RESIZE_FS _IOW('f', 16, __u64) > #define EXT4_IOC_SWAP_BOOT _IO('f', 17) > #define EXT4_IOC_PRECACHE_EXTENTS _IO('f', 18) > +#define EXT4_IOC_GETPROJECT _IOR('f', 19, long) > +#define EXT4_IOC_SETPROJECT _IOW('f', 20, long) > > #if defined(__KERNEL__) && defined(CONFIG_COMPAT) > /* > diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c > index 0f2252e..93b7ff4 100644 > --- a/fs/ext4/ioctl.c > +++ b/fs/ext4/ioctl.c > @@ -14,6 +14,8 @@ > #include > #include > #include > +#include > +#include > #include > #include "ext4_jbd2.h" > #include "ext4.h" > @@ -611,6 +613,89 @@ resizefs_out: > case EXT4_IOC_PRECACHE_EXTENTS: > return ext4_ext_precache(inode); > > + case EXT4_IOC_GETPROJECT: > + { > + __u32 projid; > + > + projid = (__u32)from_kprojid(&init_user_ns, > + EXT4_I(inode)->i_projid); > + return put_user(projid, (__u32 __user *) arg); > + } > + case EXT4_IOC_SETPROJECT: > + { > + __u32 projid; > + int err; > + handle_t *handle; > + kprojid_t kprojid; > + struct ext4_iloc iloc; > + struct ext4_inode *raw_inode; > + > + struct dquot *transfer_to[EXT4_MAXQUOTAS] = { }; > + > + /* Make sure caller can change project. */ > + if (!capable(CAP_SYS_ADMIN)) > + return -EACCES; > + > + if (get_user(projid, (__u32 __user *) arg)) > + return -EFAULT; > + > + kprojid = make_kprojid(&init_user_ns, (projid_t)projid); > + > + if (projid_eq(kprojid, EXT4_I(inode)->i_projid)) > + return 0; > + > + err = mnt_want_write_file(filp); > + if (err) > + return err; > + > + err = -EPERM; > + mutex_lock(&inode->i_mutex); > + /* Is it quota file? Do not allow user to mess with it */ > + if (IS_NOQUOTA(inode)) > + goto project_out; > + > + dquot_initialize(inode); > + > + handle = ext4_journal_start(inode, EXT4_HT_QUOTA, > + EXT4_QUOTA_INIT_BLOCKS(sb) + > + EXT4_QUOTA_DEL_BLOCKS(sb) + 3); > + if (IS_ERR(handle)) { > + err = PTR_ERR(handle); > + goto project_out; > + } > + > + err = ext4_reserve_inode_write(handle, inode, &iloc); > + if (err) > + goto project_stop; > + > + raw_inode = ext4_raw_inode(&iloc); > + if ((EXT4_INODE_SIZE(inode->i_sb) <= > + EXT4_GOOD_OLD_INODE_SIZE) || > + (!EXT4_FITS_IN_INODE(raw_inode, ei, i_projid))) { > + err = -EFBIG; > + goto project_stop; > + } > + > + transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid)); > + if (!transfer_to[PRJQUOTA]) > + goto project_set; > + > + err = __dquot_transfer(inode, transfer_to); > + dqput(transfer_to[PRJQUOTA]); > + if (err) > + goto project_stop; > + > +project_set: > + EXT4_I(inode)->i_projid = kprojid; > + inode->i_ctime = ext4_current_time(inode); > + err = ext4_mark_iloc_dirty(handle, inode, &iloc); > +project_stop: > + ext4_journal_stop(handle); > +project_out: > + mutex_unlock(&inode->i_mutex); > + mnt_drop_write_file(filp); > + return err; > + } > default: > return -ENOTTY; > } > -- > 1.7.1 > -- Jan Kara SUSE Labs, CR From BATV+22d22156cf6d8c505944+4049+infradead.org+hch@bombadil.srs.infradead.org Wed Sep 24 11:26:41 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 345CB7F51 for ; Wed, 24 Sep 2014 11:26:41 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 0478C8F8035 for ; Wed, 24 Sep 2014 09:26:40 -0700 (PDT) X-ASG-Debug-ID: 1411575998-04bdf0039f136050001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id fBOcYX8odNweNGIt (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 24 Sep 2014 09:26:38 -0700 (PDT) X-Barracuda-Envelope-From: BATV+22d22156cf6d8c505944+4049+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XWpOk-000541-TX; Wed, 24 Sep 2014 16:26:34 +0000 Date: Wed, 24 Sep 2014 09:26:34 -0700 From: Christoph Hellwig To: Jan Kara Cc: Li Xi , linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-api@vger.kernel.org, tytso@mit.edu, adilger@dilger.ca, viro@zeniv.linux.org.uk, hch@infradead.org, dmonakhov@openvz.org, xfs@oss.sgi.com Subject: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project Message-ID: <20140924162634.GA16886@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project References: <1411567470-31799-1-git-send-email-lixi@ddn.com> <1411567470-31799-5-git-send-email-lixi@ddn.com> <20140924162507.GC27000@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140924162507.GC27000@quack.suse.cz> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1411575998 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9828 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Sep 24, 2014 at 06:25:07PM +0200, Jan Kara wrote: > On Wed 24-09-14 22:04:30, Li Xi wrote: > > This patch adds ioctl interface for setting/getting project of ext4. > The patch looks good to me. I was just wondering whether it won't be > useful to add an ioctl() which isn't ext4 specific. We could just extend > ->setattr() to allow setting of project ID (most filesystems would just > return -EOPNOTSUPP but ext4 and xfs could do the right thing) and then call > ->setattr from the generic ioctl. That way userspace won't have to care > about filesystem type when setting project ID... What do others think? Absolutely. In general I also wonder why this patch doesn't implement the full XFS API. Maybe there is a reason it was considered and rejected, but it would be helpful to document why. From jack@suse.cz Wed Sep 24 12:01:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 3E4D27F53 for ; Wed, 24 Sep 2014 12:01:13 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1CB788F804C for ; Wed, 24 Sep 2014 10:01:09 -0700 (PDT) X-ASG-Debug-ID: 1411578067-04bdf003a2137a60001-NocioJ Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id vrXixPsI33tdgqzc (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 24 Sep 2014 10:01:08 -0700 (PDT) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id CBDAEAB43; Wed, 24 Sep 2014 17:01:06 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id 0E86D81F97; Wed, 24 Sep 2014 19:01:05 +0200 (CEST) Date: Wed, 24 Sep 2014 19:01:05 +0200 From: Jan Kara To: Christoph Hellwig Cc: Jan Kara , Li Xi , linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-api@vger.kernel.org, tytso@mit.edu, adilger@dilger.ca, viro@zeniv.linux.org.uk, dmonakhov@openvz.org, xfs@oss.sgi.com Subject: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project Message-ID: <20140924170105.GE27000@quack.suse.cz> X-ASG-Orig-Subj: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project References: <1411567470-31799-1-git-send-email-lixi@ddn.com> <1411567470-31799-5-git-send-email-lixi@ddn.com> <20140924162507.GC27000@quack.suse.cz> <20140924162634.GA16886@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140924162634.GA16886@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: cantor2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1411578067 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9829 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed 24-09-14 09:26:34, Christoph Hellwig wrote: > On Wed, Sep 24, 2014 at 06:25:07PM +0200, Jan Kara wrote: > > On Wed 24-09-14 22:04:30, Li Xi wrote: > > > This patch adds ioctl interface for setting/getting project of ext4. > > The patch looks good to me. I was just wondering whether it won't be > > useful to add an ioctl() which isn't ext4 specific. We could just extend > > ->setattr() to allow setting of project ID (most filesystems would just > > return -EOPNOTSUPP but ext4 and xfs could do the right thing) and then call > > ->setattr from the generic ioctl. That way userspace won't have to care > > about filesystem type when setting project ID... What do others think? > > Absolutely. In general I also wonder why this patch doesn't implement > the full XFS API. Maybe there is a reason it was considered and > rejected, but it would be helpful to document why. Do you mean full get/setfsxattr API? That basically contains project ID, flags (those that are currently get/set with FS_IOC_GETFLAGS/SETFLAGS), and extent size hint right? That seems workable and it would also make setting of PROJINHERIT flag fs agnostic. Only we would have to create some generic flags namespace and merge into that ext4 flags and have a translation function for the old ext4 flags. Also I'm afraid we may quickly run out of 32 available flags in xflags so we'd need to extend that. But all this seems to be doable. Honza -- Jan Kara SUSE Labs, CR From chad.kee@udc.edu Wed Sep 24 12:03:12 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 6644B7F53 for ; Wed, 24 Sep 2014 12:03:12 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 04771AC00C for ; Wed, 24 Sep 2014 10:03:08 -0700 (PDT) X-ASG-Debug-ID: 1411578187-04bdf003a2137c20001-NocioJ Received: from na01-by2-obe.outbound.protection.outlook.com (mail-by2hn0254.outbound.protection.outlook.com [207.46.100.254]) by cuda.sgi.com with ESMTP id 5Dxt2PH7MH3i2FHU (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 24 Sep 2014 10:03:07 -0700 (PDT) X-Barracuda-Envelope-From: chad.kee@udc.edu X-Barracuda-Apparent-Source-IP: 207.46.100.254 Received: from BY2PR01CA001.prod.exchangelabs.com (10.255.247.31) by CY1PR0101MB1051.prod.exchangelabs.com (25.160.225.143) with Microsoft SMTP Server (TLS) id 15.0.1034.13; Wed, 24 Sep 2014 17:03:05 +0000 Received: from BN1AFFO11FD032.protection.gbl (2a01:111:f400:7c10::131) by BY2PR01CA001.outlook.office365.com (2a01:111:e400:2c16::31) with Microsoft SMTP Server (TLS) id 15.0.1039.15 via Frontend Transport; Wed, 24 Sep 2014 17:03:04 +0000 Received: from mail.udc.edu (38.105.72.86) by BN1AFFO11FD032.mail.protection.outlook.com (10.58.52.186) with Microsoft SMTP Server (TLS) id 15.0.1029.15 via Frontend Transport; Wed, 24 Sep 2014 17:03:04 +0000 Received: from UDCMSGSTAFF-M.firebirds.udc.edu ([fe80::6050:5d2:44a7:687b]) by UDCMSG008.firebirds.udc.edu ([fe80::b8e9:ca18:5333:1fc0%10]) with mapi; Wed, 24 Sep 2014 13:02:07 -0400 From: "Kee, Chad E." 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--_000_7D9600C7E626D243869355C8D9BE880A0140FE9B22D1UDCMSGSTAFF_-- From bfoster@redhat.com Wed Sep 24 13:47:12 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=LOTS_OF_MONEY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D26067F47 for ; Wed, 24 Sep 2014 13:47:12 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id AF36B304059 for ; Wed, 24 Sep 2014 11:47:09 -0700 (PDT) X-ASG-Debug-ID: 1411584428-04cbb07301137070001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id r05N3sGmH1QNpc0N (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 24 Sep 2014 11:47:08 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8OIl7KU012680 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 24 Sep 2014 14:47:07 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8OIl7NJ007445; Wed, 24 Sep 2014 14:47:07 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id C2206120064; Wed, 24 Sep 2014 14:47:05 -0400 (EDT) From: Brian Foster To: fstests@vger.kernel.org Cc: xfs@oss.sgi.com Subject: [PATCH] generic/033: add xfs delalloc indirect block depletion reproducer Date: Wed, 24 Sep 2014 14:47:05 -0400 X-ASG-Orig-Subj: [PATCH] generic/033: add xfs delalloc indirect block depletion reproducer Message-Id: <1411584425-52709-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411584428 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 XFS allocates extra indirect blocks for delayed allocation extents at write time. When delalloc extents are split, the existing indirect block reservation was historically divided up evenly among the new extents even though the overall requirement for two extents could exceed the requirement for the original. Repeated delalloc extent splits ultimately leads to extents with 0 indirect blocks and in turn leads to assert failures in XFS. Add a test to stress indirect block reservation for delayed allocation extents. The test converts a single delalloc extent to many and operates on the remaining extents to detect or trigger potential problems. Signed-off-by: Brian Foster --- Here's a simple reproducer for the indirect block reservation problem called out here: http://oss.sgi.com/archives/xfs/2014-09/msg00337.html It reproduces the assert failures described therein: XFS: Assertion failed: startblockval(del.br_startblock) > 0, file: fs/xfs/libxfs/xfs_bmap.c, line: 5281 Note that this test also unintentionally fails on XFS. The test file ends up zero-sized after the remount and thus hexdump doesn't produce any output. This doesn't occur on ext4, I suspect due to the fact that the range being zeroed is flushed beforehand, though I could be wrong about that. In any event, this calls out a separate bug in XFS where if appending data is chucked from cache by zero range before written back (eof is page aligned), we lose the on-disk inode size update and the inode size changes unexpectedly across the remount (assuming nothing else changes the size, of course). Brian tests/generic/033 | 88 +++++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/033.out | 4 +++ tests/generic/group | 1 + 3 files changed, 93 insertions(+) create mode 100755 tests/generic/033 create mode 100644 tests/generic/033.out diff --git a/tests/generic/033 b/tests/generic/033 new file mode 100755 index 0000000..41198b7 --- /dev/null +++ b/tests/generic/033 @@ -0,0 +1,88 @@ +#! /bin/bash +# FS QA Test No. 033 +# +# This test stresses indirect block reservation for delayed allocation extents. +# XFS reserves extra blocks for deferred allocation of delalloc extents. These +# reserved blocks can be divided among more extents than anticipated if the +# original extent for which the blocks were reserved is split into multiple +# delalloc extents. If this scenario repeats, eventually some extents are left +# without any indirect block reservation whatsoever. This leads to assert +# failures and possibly other problems in XFS. +# +#----------------------------------------------------------------------- +# Copyright (c) 2014 Red Hat, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter + +# real QA test starts here +rm -f $seqres.full + +# Modify as appropriate. +_supported_fs generic +_supported_os Linux +_require_scratch +_require_xfs_io_command "fzero" + +_scratch_mkfs >/dev/null 2>&1 +_scratch_mount + +file=$SCRATCH_MNT/file.$seq +bytes=$((64 * 1024)) + +# create sequential delayed allocation +$XFS_IO_PROG -f -c "pwrite 0 $bytes" $file | _filter_xfs_io \ + >> $seqres.full 2>&1 + +# Zero every other 4k range to split the larger delalloc extent into many more +# smaller extents. Use zero instead of hole punch because the former does not +# force writeback (and hence delalloc conversion). It can simply discard +# delalloc blocks and convert the ranges to unwritten. +endoff=$((bytes - 4096)) +for i in $(seq 0 8192 $endoff); do + $XFS_IO_PROG -c "fzero -k $i 4k" $file | _filter_xfs_io \ + >> $seqres.full 2>&1 +done + +# now zero the opposite set to remove remaining delalloc extents +for i in $(seq 4096 8192 $endoff); do + $XFS_IO_PROG -c "fzero -k $i 4k" $file | _filter_xfs_io \ + >> $seqres.full 2>&1 +done + +_scratch_remount +hexdump $file + +status=0 +exit diff --git a/tests/generic/033.out b/tests/generic/033.out new file mode 100644 index 0000000..419d831 --- /dev/null +++ b/tests/generic/033.out @@ -0,0 +1,4 @@ +QA output created by 033 +0000000 0000 0000 0000 0000 0000 0000 0000 0000 +* +0010000 diff --git a/tests/generic/group b/tests/generic/group index 8e0c22a..1227408 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -32,6 +32,7 @@ 027 auto enospc 028 auto quick 032 auto quick rw +033 auto quick rw 053 acl repair auto quick 062 attr udf auto quick 068 other auto freeze dangerous stress -- 1.8.3.1 From bfoster@redhat.com Wed Sep 24 14:06:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8E8CB7F5A for ; Wed, 24 Sep 2014 14:06:38 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7D5E88F8033 for ; Wed, 24 Sep 2014 12:06:35 -0700 (PDT) X-ASG-Debug-ID: 1411585593-04cb6c50e512a7d0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id oFBMffDsKFMCPnmV (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 24 Sep 2014 12:06:34 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8OJ6XT6020806 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Wed, 24 Sep 2014 15:06:33 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8OJ6XAd016743 for ; Wed, 24 Sep 2014 15:06:33 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 0C7EE120064; Wed, 24 Sep 2014 15:06:31 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH] xfs: flush the range before zero range conversion Date: Wed, 24 Sep 2014 15:06:31 -0400 X-ASG-Orig-Subj: [PATCH] xfs: flush the range before zero range conversion Message-Id: <1411585591-55975-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411585594 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 XFS currently discards delalloc blocks within the target range of a zero range request. Unaligned start and end offsets are zeroed through the page cache and the internal, aligned blocks are converted to unwritten extents. If EOF is page aligned and covered by a delayed allocation extent. The inode size is not updated until I/O completion. If a zero range request discards a delalloc range that covers page aligned EOF as such, the inode size update never occurs. For example: $ rm -f /mnt/file $ xfs_io -fc "pwrite 0 64k" -c "zero 60k 4k" /mnt/file $ stat -c "%s" /mnt/file 65536 $ umount /mnt $ mount /mnt $ stat -c "%s" /mnt/file 61440 Update xfs_zero_file_space() to flush the range rather than discard delalloc blocks to ensure that inode size updates occur appropriately. Signed-off-by: Brian Foster --- I suppose we could be more clever here and only flush the range in this particular scenario, but I'm not sure if there's a major benefit there. FWIW, this implicitly addresses the indlen==0 assert failures described in the xfs_bmap_del_extent() rfc, but doesn't necessarily mean we shouldn't fix that code IMO. Brian fs/xfs/xfs_bmap_util.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index d8b77b5..24d634d 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1394,14 +1394,14 @@ xfs_zero_file_space( if (start_boundary < end_boundary - 1) { /* - * punch out delayed allocation blocks and the page cache over - * the conversion range + * Writeback the range to ensure any inode size updates due to + * appending writes make it to disk (otherwise we could just + * punch out the delalloc blocks). */ - xfs_ilock(ip, XFS_ILOCK_EXCL); - error = xfs_bmap_punch_delalloc_range(ip, - XFS_B_TO_FSBT(mp, start_boundary), - XFS_B_TO_FSB(mp, end_boundary - start_boundary)); - xfs_iunlock(ip, XFS_ILOCK_EXCL); + error = filemap_write_and_wait_range(VFS_I(ip)->i_mapping, + start_boundary, end_boundary - 1); + if (error) + goto out; truncate_pagecache_range(VFS_I(ip), start_boundary, end_boundary - 1); -- 1.8.3.1 From stan@hardwarefreak.com Wed Sep 24 14:06:50 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id C7C3E7F5A for ; Wed, 24 Sep 2014 14:06:50 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 56026AC008 for ; Wed, 24 Sep 2014 12:06:47 -0700 (PDT) X-ASG-Debug-ID: 1411585605-04cbb07304138010001-NocioJ Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id SpUhdk0qfeuYybix for ; Wed, 24 Sep 2014 12:06:46 -0700 (PDT) X-Barracuda-Envelope-From: stan@hardwarefreak.com X-Barracuda-Apparent-Source-IP: 65.41.216.221 X-Barracuda-User-Whitelist: xfs@oss.sgi.com Received: from [192.168.100.53] (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by greer.hardwarefreak.com (Postfix) with ESMTPA id AE1956C052; Wed, 24 Sep 2014 14:06:45 -0500 (CDT) Message-ID: <54231653.7050600@hardwarefreak.com> Date: Wed, 24 Sep 2014 14:06:59 -0500 From: Stan Hoeppner User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Icedove/24.7.0 MIME-Version: 1.0 To: Helmut Tessarek , Eric Sandeen , xfs@oss.sgi.com Subject: Re: How to format RAID1 correctly References: <5422146A.90206@evermeet.cx> <54222763.40107@sandeen.net> <5422285B.6010306@evermeet.cx> <542234F6.4080000@hardwarefreak.com> <5422376D.3000204@evermeet.cx> <542243E6.1040302@hardwarefreak.com> <5422E912.1000708@evermeet.cx> X-ASG-Orig-Subj: Re: How to format RAID1 correctly In-Reply-To: <5422E912.1000708@evermeet.cx> 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: 1411585606 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 09/24/2014 10:53 AM, Helmut Tessarek wrote: > On 2014-09-24 0:09, Stan Hoeppner wrote: >> If you create any striped arrays, especially parity arrays, with md make >> sure to manually specify chunk size and match it to your workload. The >> current default is 512KB. This is too large for a great many workloads, >> specifically those that are metadata heavy or manipulate many small >> files. 512KB wastes space and with parity arrays causes RMW, hammering >> throughput and increasing latency. > > Thanks again for the valueable information. > > I used to work with databases on storage subsystems, so placing GBs of > database containers for tableapaces on arrays with a larger stripe size > was actually beneficial. > For log files and other data I usually used different cache settings and > strip sizes. > > So how does this work with SW RAID? > > Does the XFS chunk size equal the amount of data touched by a single r/w > operation? No. The XFS stripe unit size (chunk size) must/should equal the underlying RAID stripe unit size (chunk). As Eric said, all this does is help XFS align allocations to the underlying RAID geometry in an attempt to get more full chunk/stripe writes on the disks. Note we both said allocation. The XFS sunit/swidth settings have no affect with file appends or writing into preallocated files. > I'm asking because data is usually written in page/extent sizes for > databases. Even if I have a container with 50GB, I might only have to > read/write a 4k page. db operations are going to be append or modify-in-place. Neither will benefit from aligning XFS to the RAID geometry. Appending the db logs is also not allocation. So in practical terms, you simply would not use the "-d" striping options during mkfs.xfs. Use the defaults. Cheers, Stan From lists@nerdbynature.de Wed Sep 24 14:15:09 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 664587F63 for ; Wed, 24 Sep 2014 14:15:09 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 3757F304062 for ; Wed, 24 Sep 2014 12:15:09 -0700 (PDT) X-ASG-Debug-ID: 1411586102-04bdf003a113f630001-NocioJ Received: from trent.utfs.org (trent.utfs.org [94.185.90.103]) by cuda.sgi.com with ESMTP id cw4hpCsEBB1KMHdq (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 24 Sep 2014 12:15:04 -0700 (PDT) X-Barracuda-Envelope-From: lists@nerdbynature.de X-Barracuda-Apparent-Source-IP: 94.185.90.103 Received: by trent.utfs.org (Postfix, from userid 8) id EEDFF3DABF; Wed, 24 Sep 2014 21:15:00 +0200 (CEST) Received: from trent.utfs.org (localhost [127.0.0.1]) by trent.utfs.org (Postfix) with ESMTP id BC02D3DAE7; Wed, 24 Sep 2014 21:14:59 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by trent.utfs.org (Postfix) with ESMTP id 99D9F3DABF; Wed, 24 Sep 2014 21:14:59 +0200 (CEST) Date: Wed, 24 Sep 2014 12:14:59 -0700 (PDT) From: Christian Kujau To: Dave Chinner cc: xfs@oss.sgi.com Subject: Re: log record CRC mismatch: found 0x10a71f1d, expected 0xe012d25f In-Reply-To: X-ASG-Orig-Subj: Re: log record CRC mismatch: found 0x10a71f1d, expected 0xe012d25f Message-ID: References: <20140618120124.GR9508@dastard> <20140618230721.GD4453@dastard> User-Agent: Alpine 2.19.4 (DEB 40 2013-11-18) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-AV-Checked: ClamAV using ClamSMTP (127.0.0.1 at Wed Sep 24 21:14:59 2014 +0200 (CEST)) X-Barracuda-Connect: trent.utfs.org[94.185.90.103] X-Barracuda-Start-Time: 1411586103 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.20 X-Barracuda-Spam-Status: No, SCORE=0.20 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=PR0N_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9833 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.20 PR0N_SUBJECT Subject has letters around special characters (pr0n) On Wed, 18 Jun 2014 at 17:22, Christian Kujau wrote: > On Thu, 19 Jun 2014 at 09:07, Dave Chinner wrote: > > > When the PowerPC box crashed there should not have been any i/o on > > > the file system - so, if there was nothing to commit, clearing the > > > log with "xfs_repair -L" should not lose any data, right? > > > > In theory. use xfs_logprint to check the log is empty... > > Ah - next time I'll use that. I was too impatient and went with > "-L" and now the filesystem could be mounted. All is good. My PowerBook G4 is offline again (rats!) and again I connected this disk to an i686 laptop. Trying to mount fails again, because the XFS file system was not unmounted properly and the i686 laptop cannot read the big-endian XFS log. OK, no biggie, this had been explained earlier. I just wanted to share the xfs_logprint(8) output of this filesystem and I haven't cleared the log yet - just in case anyone wants to play around with that some more: # xfs_logprint /dev/mapper/wdc1 xfs_logprint: data device: 0xfd03 log device: 0xfd03 daddr: 976762064 length: 262144 cycle: 1 version: 2 lsn: 1,0 tail_lsn: 1,0 length of Log Record: 20 prev offset: -1 num ops: 1 uuid: 3f121b9a-19e9-4cc8-97ba-86ec62240026 format: little endian linux h_size: 32768 ---------------------------------------------------------------------------- Oper (0): tid: b0c0d0d0 len: 8 clientid: LOG flags: UNMOUNT Unmount filesystem ============================================================================ cycle: 1 version: 2 lsn: 1,2 tail_lsn: 1,2 length of Log Record: 512 prev offset: 0 num ops: 5 uuid: 3f121b9a-19e9-4cc8-97ba-86ec62240026 format: big endian linux h_size: 32768 ---------------------------------------------------------------------------- Oper (0): tid: 4029c0bb len: 0 clientid: TRANS flags: START ---------------------------------------------------------------------------- Oper (1): tid: 4029c0bb len: 16 clientid: TRANS flags: none xfs_logprint: unknown log operation type (5254) ********************************************************************** * ERROR: data block=2 * ********************************************************************** Bad data in log When the PowerPC crashed, the XFS file system was mounte read-write but no writes should have been active, only read operations at best. I'll probably clear the log tomorrow. And yes, this might be a more exotic scenario so don't bother with code fixes, I just wanted this to be somewhat documented in the archives. Cheers, Christian. # mount -t xfs -o ro /dev/mapper/wdc1 /mnt # dmesg [...] XFS (dm-3): Mounting V4 Filesystem XFS (dm-3): Starting recovery (logdev: internal) XFS (dm-3): log record CRC mismatch: found 0xbb3995f5, expected 0x6e17c591. fa400000: 00 00 00 01 00 00 00 00 69 01 00 00 8e 6c 64 e0 ........i....ld. fa400010: 00 00 00 10 69 00 00 00 54 52 41 4e 00 00 00 2a ....i...TRAN...* XFS (dm-3): dirty log written in incompatible format - can't recover XFS (dm-3): log mount/recovery failed: error 5 XFS (dm-3): log mount failed > Now I only have to make sure to cleanly unmount from the i686 box > once my PowerPC system is back online :-) > > Thanks you! > Christian. > -- > BOFH excuse #25: > > Decreasing electron flux -- BOFH excuse #334: 50% of the manual is in .pdf readme files From diane@caltech.edu Wed Sep 24 15:38:54 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 3CE7A7F55 for ; Wed, 24 Sep 2014 15:38:54 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1CD988F8033 for ; Wed, 24 Sep 2014 13:38:50 -0700 (PDT) X-ASG-Debug-ID: 1411591129-04bdf0039f144040001-NocioJ Received: from chaos.caltech.edu (chaos.caltech.edu [131.215.34.119]) by cuda.sgi.com with ESMTP id Agh7fqjjhQpllpv1 (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO) for ; Wed, 24 Sep 2014 13:38:49 -0700 (PDT) X-Barracuda-Envelope-From: diane@caltech.edu X-Barracuda-Apparent-Source-IP: 131.215.34.119 Received: from dhcp-54-193.caltech.edu ([131.215.54.193] helo=myrada.localnet) by chaos.caltech.edu with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.80) (envelope-from ) id 1XWtKq-0002CX-BS; Wed, 24 Sep 2014 13:38:48 -0700 From: Diane Trout To: Emmanuel Florac Cc: xfs@oss.sgi.com Subject: Re: Corrupted file system Date: Wed, 24 Sep 2014 13:38:27 -0700 X-ASG-Orig-Subj: Re: Corrupted file system Message-ID: <705802842.F0QjhfVGQR@myrada> User-Agent: KMail/4.14 (Linux/3.14-2-amd64; KDE/4.14.1; x86_64; ; ) In-Reply-To: <20140924120840.1be78240@harpe.intellique.com> References: <5839367.DyqsVHbRuQ@myrada> <20140924120840.1be78240@harpe.intellique.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="iso-8859-1" X-Barracuda-Connect: chaos.caltech.edu[131.215.34.119] X-Barracuda-Start-Time: 1411591129 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9835 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wednesday, September 24, 2014 12:08:40 Emmanuel Florac wrote: > Le Tue, 23 Sep 2014 15:02:57 -0700 >=20 > Diane Trout =E9crivait: > > I had a raid failure at work that ended up corrupting an xfs > > filesystem the tail of the xfs_repair command looks like the below.= I > > was able to generate a metadata dump but is there a point to making= > > it available? > >=20 > > It does crash repeatedly at the same place >=20 > Did you try the very latest xfs_repair? I grabbed the one out of debian unstable (3.2.1), verified that it was = your=20 latest release and used that. I didn't try building the version in git.= It did get much further than version 3.1.7+b1 (debian stable) Diane Phase 6 - check inode connectivity... - resetting contents of realtime bitmap and summary inodes - traversing filesystem ... entry "lymphoblastoid" in dir ino 256 doesn't have a .. entry, will set= it in=20 ino 2051. bad hash table for directory inode 256 (no data entry): rebuilding rebuilding directory inode 256 7f70c79c8700: Badness in key lookup (length) bp=3D(bno 0x3480, len 4096 bytes) key=3D(bno 0x3480, len 8192 bytes) Metadata corruption detected at block 0x4000070/0x1000 xfs_da_do_buf(2): XFS_CORRUPTION_ERROR fatal error -- can't read block 8388608 for directory inode 259, error = 117 From sandeen@sandeen.net Wed Sep 24 15:57:54 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2CB2E7F61 for ; Wed, 24 Sep 2014 15:57:54 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 077988F804C for ; Wed, 24 Sep 2014 13:57:53 -0700 (PDT) X-ASG-Debug-ID: 1411592272-04bdf003a11451a0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id ctY68HqWcpNmXHh5 for ; Wed, 24 Sep 2014 13:57:52 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 2B0F160F9684; Wed, 24 Sep 2014 15:57:52 -0500 (CDT) Message-ID: <54233051.4070709@sandeen.net> Date: Wed, 24 Sep 2014 15:57:53 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Diane Trout CC: xfs-oss Subject: Re: Corrupted file system References: <5839367.DyqsVHbRuQ@myrada> <20140924120840.1be78240@harpe.intellique.com> <705802842.F0QjhfVGQR@myrada> X-ASG-Orig-Subj: Re: Corrupted file system In-Reply-To: <705802842.F0QjhfVGQR@myrada> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1411592272 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9836 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- If you want to make a metadata image, compress it, and send it my way I'd be glad to look at it - I've been doing some repair work lately. -Eric On 9/24/14 3:38 PM, Diane Trout wrote: > On Wednesday, September 24, 2014 12:08:40 Emmanuel Florac wrote: >> Le Tue, 23 Sep 2014 15:02:57 -0700 >> >> Diane Trout écrivait: >>> I had a raid failure at work that ended up corrupting an xfs >>> filesystem the tail of the xfs_repair command looks like the below. I >>> was able to generate a metadata dump but is there a point to making >>> it available? >>> >>> It does crash repeatedly at the same place >> >> Did you try the very latest xfs_repair? > > > I grabbed the one out of debian unstable (3.2.1), verified that it was your > latest release and used that. I didn't try building the version in git. > > It did get much further than version 3.1.7+b1 (debian stable) > > Diane > > Phase 6 - check inode connectivity... > - resetting contents of realtime bitmap and summary inodes > - traversing filesystem ... > entry "lymphoblastoid" in dir ino 256 doesn't have a .. entry, will set it in > ino 2051. > bad hash table for directory inode 256 (no data entry): rebuilding > rebuilding directory inode 256 > 7f70c79c8700: Badness in key lookup (length) > bp=(bno 0x3480, len 4096 bytes) key=(bno 0x3480, len 8192 bytes) > Metadata corruption detected at block 0x4000070/0x1000 > xfs_da_do_buf(2): XFS_CORRUPTION_ERROR > > fatal error -- can't read block 8388608 for directory inode 259, error 117 > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs > From david@fromorbit.com Wed Sep 24 18:10:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id B8DD67F60 for ; Wed, 24 Sep 2014 18:10:38 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id A7371304053 for ; Wed, 24 Sep 2014 16:10:35 -0700 (PDT) X-ASG-Debug-ID: 1411600228-04cb6c50e4136090001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id e4JlouqcE72UD8Wy for ; Wed, 24 Sep 2014 16:10:29 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AukdACROI1R5LHimPGdsb2JhbABggw5TtmMGlDKBYYVqBAIBgQwXAQYBAQEBODiEAwEBAQMBOg0PIwULCAMYCSUPBSUDBxoTGYgdBw6zNpB8ARcYhXqKDAeDLoEdBZ0gjDaLCh6BaysvgkoBAQE Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail06.adl2.internode.on.net with ESMTP; 25 Sep 2014 08:40:27 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XWvhY-0004up-LD; Thu, 25 Sep 2014 09:10:24 +1000 Date: Thu, 25 Sep 2014 09:10:24 +1000 From: Dave Chinner To: Olaf Weber Cc: Ben Myers , linux-fsdevel@vger.kernel.org, tinguely@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS Message-ID: <20140924231024.GA4758@dastard> X-ASG-Orig-Subj: Re: [RFC v2] Unicode/UTF-8 support for XFS References: <20140918195650.GI19952@sgi.com> <20140922222611.GZ4322@dastard> <5422C540.1060007@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5422C540.1060007@sgi.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1411600228 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9839 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Sep 24, 2014 at 03:21:04PM +0200, Olaf Weber wrote: > On 23-09-14 00:26, Dave Chinner wrote: > >On Thu, Sep 18, 2014 at 02:56:50PM -0500, Ben Myers wrote: > > [...] > > >>TODO: Store the unicode version number of the filesystem on disk in the > >>super block. > > > >So, if the filesystem has to store the specific unicode version it > >was created with so that we know what version to put in trie > >lookups, again I'll ask: why are we loading the trie as a generic > >kernel module and not as metadata in the filesystem that is demand > >paged and cached? > > This way the trie can be shared, and the code using it is not > entangled with the XFS code. The trie parsing code can still be common - just the location and contents of the data is determined by the end-user. > > >i.e. put the entire trie on disk, look up the specific conversion > >required for the name being compared, and then cache that conversion > >in memory. This makes repeated lookups much faster because the trie > >only contains conversions that are in use, the memory footprint is > >way lower and the conversions are guaranteed to be consistent for > >the life of the filesystem.... > > Above you mention demand paging parts of the trie, but here you seem > to suggest creating an in-core conversion table on the fly from data > read from disk. The former seems a lot easier to do than the latter. Right - it's a question of what needs optimising. If people are only concerned about memory footprint, then demand paging solves that problem. If people are concerned about performance and memory footprint, then demand paging plus a lookaside cache will address both of those aspects. We can't do demand paging if the trie data is built into the kernel. We can still do a lookaside cache to avoid performane issues with repeated trie lookups... [...] > >>To support unicode we have to interpret filenames. What happens when > >>(part of) a filename cannot be interpreted? We can reject the > >>filename, interpret the parts we can, or punt and accept it as an > >>uninterpreted blob. > >> > >>Rejecting ill-formed filenames was my first choice, but I came around > >>on the issue: there are too many ways in which you can end up with > >>having to deal with ill-formed filenames that would leave a user with > >>no recourse but to move whatever they're doing to a different > >>filesystem. Unpacking a tarball with filenames in a different encoding > >>is an example. > > > >You still haven't addressed this: > > > >| So we accept invalid unicode in filenames, but only after failing to > >| parse them? Isn't this a potential vector for exploiting weaknesses > >| in application filename handling? i.e. unprivileged user writes > >| specially crafted invalid unicode filename to disk, setuid program > >| tries to parse it, invalid sequence triggers a buffer overflow bug > >| in setuid parser? > > > >apart from handwaving that userspace has to be able to handle > >invalid utf-8 already. Why should we let filesystems say "we fully > >understand and support utf8" and then allow them to accept and > >propagate invalid utf8 sequences and leave everyone else to have to > >clean up the mess? > > Because the alternative amounts in my opinion to a demand that every > bit of userspace that may be involved in generating filenames > generate only clean UTF-8. I do not believe that this is a realistic > demand at this point in time. It's a chicken and egg situation. I'd much prefer we enforce clean utf8 from the start, because if we don't we'll never be able to do that. And other filesystems (e.g. ZFS) allow you to do reject anything that is not clean utf8.... [...] > >>When comparing well-formed filenames, the question now becomes which > >>byte sequences are considered to be alternative spellings of the same > >>filename. This is where normalization forms come into play, and the > >>unicode standard has quite a bit to say about the subject. > >> > >>If all you're doing is comparison, then choosing NFD over NFC is easy, > >>because the former is easier to calculate than the latter. > >> > >>If you want various spellings of "office" to compare equal, then > >>picking NFKD over NFD for comparison is also an obvious > >>choice. (Hand-picking individual compatibility forms is truly a bad > >>idea.) Ways to spell "office": "o_f_f_i_c_e", "o_f_fi_c_e", and > >>"o_ffi_c_e", using no ligatures, the fi ligature, or the ffi > >>ligature. (Some fool thought it a good idea to add these ligatures to > >>unicode, all we get to decide is how to cope.) > > > >Yet normalised strings are only stable and hence comparable > >if there are no unassigned code points in them. What happens when > >userspace is not using the same version of unicode as the > >filesystem and is using newer code points in it's strings? > >Normalisation fails, right? > > For the newer code points, yes. This is not treated as a failure to > normalize the string as a whole, as there are clear guidelines in > unicode on how unassigned code points interact with normalization: > they have canonical combining class 0 and no decomposition. And so effectively are not stable. Which is something we absolutely have to avoid for information stored on disk. i.e. you're using the normalised form to build the hash values in the lookup index in the directory structure, and so having unstable normalisation forms is just wrong. Hence we'd need to reject anything with unassigned code points.... > >And as an extension of using normalisation for case-folded > >comparisons, how do we make case folding work with blobs that can't > >be normalised? It seems to me that this just leads to the nasty > >situation where some filenames are case sensitive and some aren't > >based on what the filesystem thinks is valid utf-8. The worst part > >is that userspace has no idea that the filesystem is making such > >distinctions and so behaviour is not at all predictable or expected. > > Making case-folding work on a blob that cannot be normalized is (in > my opinion) akin to doing an ASCII-based casefold on a Shift-JIS > string: the result is neither pretty nor useful. Yes, that's exactly my point. > >This is another point in favour of rejecting invalid utf-8 strings > >and for keeping the translation tables stable within the > >filesystem... > > Bear in mind that this means not just rejecting invalid UTF-8 > strings, but also rejecting valid UTF-8 strings that encode > unassigned code points. And that's precisely what I'm suggesting: If we can't normalise the filename to a stable form then it cannot be used for hashing or case folding. That means it needs to be rejected, not treated as an opaque blob. The moment we start parsing filenames they are no longer opaque blobs and so all existing "filename are opaque blobs" handling rules go out the window. They are now either valid so we can use them, or they are invalid and need to be rejected to avoid unpredictable and/or undesirable behaviour. > This should be easy to implement if it is decided that we want to do this. > > >>The most contentious part is (should be) ignoring the codepoints with > >>the Default_Ignorable_Code_Point property. I've included the list > >>below. My argument, such as it is, is that these code points either > >>have no visible rendering, or in cases like the soft hyphen, are only > >>conditionally visible. The problem with these (as I see it) is that on > >>seeing a filename that might contain them you cannot tell whether they > >>are present. So I propose to ignore them for the purpose of comparing > >>filenames for equality. > > > >Which introduces a non-standard "visibility criterial" for > >determining what should be or shouldn't be part of the normalised > >string for comparison. I don't see any real justification for > >stepping outside the standard unicode normalisation here - just > >because the user cannot see a character in a specific context does > >not mean that it is not significant to the application that created > >it. > > I agree these characters may be significant to the application. I'm > just not convinced that they should be significant in a file name. They are significant to the case folding result, right? And therefore would be significant in a filename... > > >>Finally, case folding. First of all, it is optional. Then the issue is > >>that you either go the language-specific route, or simplify the task > >>by "just" doing a full casefold (C+F, in unicode parlance). Looking > >>around the net I tend to find that if you're going to do casefolding > >>at all, then a language-independent full casefold is preferred because > >>it is the most predictable option. See > >>http://www.w3.org/TR/charmod-norm/ for an example of that kind of > >>reasoning. > > > >Which says in section 2.4: "Some languages need case-folding to be > >tailored to meet specific linguistic needs". That implies that the > >case folding needs to be language aware and hence needs to be tied > >into the NLS subsystem for handling specific quirks like Turkic. > > It also recommends just doing a full case fold for cases where you > are ignorant of the language actually in use. In section 3.1 they > say: "However, language-sensitive case-sensitive matching in > document formats and protocols is NOT RECOMMENDED because language > information can be hard to obtain, verify, or manage and the > resulting operations can produce results that frustrate users." This > doesn't exactly address the case of filesystems, but as far as I > know there is no defined interface that allows kernel code to query > the locale settings that currently apply to a userspace process. Hence my comments about NLS integration. The NLS subsystem already has utf8 support with language dependent case folding tables. All the current filesystems that deal with unicode (including case folding) use the NLS subsystem for conversions. Hmmm - looking at all the NLS code that does different utf format conversions first: what happens if an application is using UTF16 or UTF32 for it's filename encoding rather than utf8? > >>* XFS-specific design notes. > >... > >>If the borgbit (the bit enabling legacy ASCII-based CI in XFS) is set > >>in the superblock, then case folding is added into the mix. This is > >>the nfkdicf normalization form mentioned above. It allows for the > >>creation of case-insensitive filesystems with UTF-8 support. > > > >Please don't overload existing superblock feature bits with multiple > >meanings. ASCII-CI is a stand-alone feature and is not in any way > >compatible with Unicode: Unicode-CI is a superset of Unicode > >support. So it really needs two new feature bits for Unicode and > >Unicode-CI, not just one for unicode. > > It seemed an obvious extension of the meaning of that bit. Feature bits refer to a specific on disk format feature. If that bit is set, then that feature is present. In this case, it means the filesystem is using ascii-ci. If that bit is passed out to userspace via the geometry ioctl, then *existing applications* expect it to mean ascii-ci behaviour from the filesystem. If an existing utility reads the flag field from disk (e.g. repair, metadump, db, etc) they all expect it to mean ascii-ci, and will do stuff based on that specific meaning. We cannot redefine the meaning of a feature bit after the fact - we have lots of feature bits so there's no need to overload an existing one for this. Hmmm - another interesting question just popped into my head about metadump: file name obfuscation. What does unicode and utf8 mean for the hash collision calculation algorithm? Cheers, Dave. -- Dave Chinner david@fromorbit.com From bpm@sgi.com Wed Sep 24 18:11:46 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 146E67F61 for ; Wed, 24 Sep 2014 18:11:46 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id DD3C98F8035; Wed, 24 Sep 2014 16:11:45 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 9F6964266DC; Wed, 24 Sep 2014 18:11:45 -0500 (CDT) Date: Wed, 24 Sep 2014 18:11:45 -0500 From: Ben Myers To: Roger Willcocks Cc: linux-fsdevel@vger.kernel.org, tinguely@sgi.com, olaf@sgi.com, xfs@oss.sgi.com Subject: Re: [PATCH 07a/13] xfsprogs: add trie generator for UTF-8. Message-ID: <20140924231145.GK4482@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140918203114.GN4482@sgi.com> <20140919160612.GF4482@sgi.com> <1411497259.4842.163.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411497259.4842.163.camel@localhost.localdomain> User-Agent: Mutt/1.5.20 (2009-06-14) Hi Roger, On Tue, Sep 23, 2014 at 07:34:19PM +0100, Roger Willcocks wrote: > On Fri, 2014-09-19 at 11:06 -0500, Ben Myers wrote: > > +#define AGE_NAME "DerivedAge.txt" > > +#define CCC_NAME "DerivedCombiningClass.txt" > > +#define PROP_NAME "DerivedCoreProperties.txt" > > +#define DATA_NAME "UnicodeData.txt" > > +#define FOLD_NAME "CaseFolding.txt" > > +#define NORM_NAME "NormalizationCorrections.txt" > > +#define TEST_NAME "NormalizationTest.txt" > > Is there a reason why you're using multiple text-based data files (and > hand-parsing them) when there's an xml formatted flat file available ? > > http://www.unicode.org/Public/UCD/latest/ucdxml/ The UCD files being parsed are the authoritative source. Check out ucdxml.readme.txt. > And a 2nd question - why does the trie need to encode "the the unicode > version in which the codepoint was assigned an interpretation" ? You need to know whether a given code point is assigned in the version of Unicode you're normalizing for. Unicode 8 is supposed to release June/July 2015 (see http://www.unicode.org/versions/), but filesystems you created this year will still need the version 7 normalization. There is still some plumbing to do to pass the version along with the string for normalization. I think you bring up a good point, but we'll need to support multiple versions in the long run. Regards, Ben From david@fromorbit.com Wed Sep 24 18:30:23 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7C92F7F63 for ; Wed, 24 Sep 2014 18:30:23 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6A2718F8033 for ; Wed, 24 Sep 2014 16:30:22 -0700 (PDT) X-ASG-Debug-ID: 1411601416-04cbb07301143b80001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id p3JSW5bH22nXxv9X for ; Wed, 24 Sep 2014 16:30:17 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ag1ZANpSI1R5LHimPGdsb2JhbABggw5Tjj6oJQaUNoFdhWoCAgEBAYEMFwEGAQEBATg4hAMBAQEDAScTHCMQCAMOCgklDwUlAwcaE4g2Bw7EMRgYhXqHeYFGTQeDLoEdBZYYhwiZSSsvAYEGgUMBAQE Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail06.adl2.internode.on.net with ESMTP; 25 Sep 2014 09:00:15 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XWw0k-0004x5-F8; Thu, 25 Sep 2014 09:30:14 +1000 Date: Thu, 25 Sep 2014 09:30:14 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [RFC PATCH] xfs: borrow indirect blocks from freed extent when available Message-ID: <20140924233014.GB4758@dastard> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: borrow indirect blocks from freed extent when available References: <1411500538-6831-1-git-send-email-bfoster@redhat.com> <20140923215816.GC4322@dastard> <20140924122746.GA53094@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140924122746.GA53094@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1411601416 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9840 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Sep 24, 2014 at 08:27:46AM -0400, Brian Foster wrote: > On Wed, Sep 24, 2014 at 07:58:16AM +1000, Dave Chinner wrote: > > On Tue, Sep 23, 2014 at 03:28:58PM -0400, Brian Foster wrote: > > > xfs_bmap_del_extent() handles extent removal from the in-core and > > > on-disk extent lists. When removing a delalloc range, it updates the > > > indirect block reservation appropriately based on the removal. It > > > currently enforces that the new indirect block reservation is less than > > > or equal to the original. This is normally the case in all situations > > > except for when the removed range creates a hole in a single delalloc > > > extent, thus splitting a single delalloc extent in two. > > > > > > The indirect block reservation is divided evenly between the two new > > > extents in this scenario. However, it is possible with small enough > > > extents to split an indlen==1 extent into two such slightly smaller > > > extents. This leaves one extent with 0 indirect blocks and leads to > > > assert failures in other areas (e.g., xfs_bunmapi() if the extent > > > happens to be removed). > > > > I had long suspected we had an issue in this code, but was never > > able to nail down a reproducer that triggered it. Do you have a > > reproducer, or did you find this by reading/tracing the code? > > > > I have a setup on which fsx reproduces an instance of this within a few > minutes consistently. It looks like the same sequence of events each > occurrence so I can try to derive a more specific test case for it. I > suspect the right sequence of delayed allocation followed by hole > punching or zeroing should be able to trigger it. *nod* > > > Refactor xfs_bunmapi() to make the updates that must be consistent > > > against the inode (e.g., delalloc block counter, quota reservation) > > > right before the extent is deleted. Move the sb block counter update > > > after the extent is deleted and update xfs_bmap_del_extent() to steal > > > some blocks from the freed extent if a larger overall indirect > > > reservation is required by the extent removal. > > > > > > Signed-off-by: Brian Foster > > > --- > > > > > > Hi all, > > > > > > I'm seeing the following assert more frequently with fsx and the recent > > > xfs_free_file_space() changes (at least on 1k fsb fs'): > > > > > > XFS: Assertion failed: startblockval(del.br_startblock) > 0, file: fs/xfs/libxfs/xfs_bmap.c, line: 5281 > > > > > > This occurs for the reason described in the commit log description. This > > > is a quick experiment I wanted to test to verify the problem goes away > > > (so far, so good). Very lightly tested so far. > > > > I suspect it's also the cause of these occasional assert failures > > that I see: > > > > XFS: Assertion failed: tp->t_blk_res_used <= tp->t_blk_res, file: fs/xfs/xfs_trans.c, line: 327 > > > > during delalloc conversion because there wasn't a space reservation > > for the blocks allocated (i.e. indlen was zero) and so we overrun > > the transaction block reservation. > > > > Interesting, I've seen this as well though I'll have to go back and see > where I was getting it from. I did run fsx overnight without any assert > failures at all, which seems rare lately. ;) I wasn't running my usual > parallel fsstress however. I've started that and I reproduce an instance > of that assert failure within a few minutes, so if related it appears > this might not be the only contributer. I'll look more into that one > next. I knew I'd looked at this before: http://oss.sgi.com/archives/xfs/2014-03/msg00314.html That got lost because I wrote it in a topic branch and not my usual working branch, so when I dropped the topic branch. Guilt, however, keeps all the patches from topic branches around, and so when I just did a grep for da_new across .git/patch, this showed up. It's basically the same "steal blocks from the deleted extent reservation fix, and it was trying to address the above failure. However, there are some other details in it (like changing the location of delalloc accounting updates) that might be relevant. I'm pretty sure the test case was simply something like: xfs_io -f -c "pwrite 0 1m" \ -c "fzero 4k 8k" \ -c "fzero 16k 8k" \ -c "fzero 32k 8k" \ -c "fzero 64k 8k" \ ..... To basically split the delalloc extent repeatedly and hence drain the reservation. Cheers, Dave. -- Dave Chinner david@fromorbit.com From dave@fromorbit.com Wed Sep 24 18:37:49 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id CCBCA7F6B for ; Wed, 24 Sep 2014 18:37:49 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id AA0E08F8033 for ; Wed, 24 Sep 2014 16:37:49 -0700 (PDT) X-ASG-Debug-ID: 1411601867-04cb6c50e6137040001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id i7hiyylQx1ASrz7Z for ; Wed, 24 Sep 2014 16:37:47 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArIVADdVI1R5LHimPGdsb2JhbABggw6IYq5UBp0QFwEGAQEBATg4hGA7gQIDB4hqnlemAIYSiimENQW0OwGCLSuCeQEBAQ Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail06.adl2.internode.on.net with ESMTP; 25 Sep 2014 09:07:46 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XWw81-0004yD-JJ for xfs@oss.sgi.com; Thu, 25 Sep 2014 09:37:45 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XWw81-00056g-ID for xfs@oss.sgi.com; Thu, 25 Sep 2014 09:37:45 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 0/4] xfs: sparse fixes Date: Thu, 25 Sep 2014 09:37:39 +1000 X-ASG-Orig-Subj: [PATCH 0/4] xfs: sparse fixes Message-Id: <1411601863-19594-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1411601867 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9840 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi folks, In gathering up the outstanding sparse warning fixes, these are the ones that went unnoticed or didn't have patches for them. The first patch fixes an actual bug, though one with almost no impact on performance and no impact on correctness. The others are just cleanups to remove warnings from correctly functioning code. Cheers, Dave. From dave@fromorbit.com Wed Sep 24 18:37:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 357797F6B for ; Wed, 24 Sep 2014 18:37:51 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id C6E91AC004 for ; Wed, 24 Sep 2014 16:37:50 -0700 (PDT) X-ASG-Debug-ID: 1411601867-04cb6c50e6137040002-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id Bi6chVioV6tXUK63 for ; Wed, 24 Sep 2014 16:37:49 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArUVADdVI1R5LHimPGdsb2JhbABggw6IYq5UBp0QFwEGAQEBATg4hAQBBVYzCBgxOQMHFBmIPcRXhhKKKYQ1BY9GmhSNDysvgkoBAQE Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail06.adl2.internode.on.net with ESMTP; 25 Sep 2014 09:07:46 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XWw81-0004yF-KO for xfs@oss.sgi.com; Thu, 25 Sep 2014 09:37:45 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XWw81-00056o-JR for xfs@oss.sgi.com; Thu, 25 Sep 2014 09:37:45 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 2/4] xfs: xfs_qm_dquot_isolate needs locking annotations for sparse Date: Thu, 25 Sep 2014 09:37:41 +1000 X-ASG-Orig-Subj: [PATCH 2/4] xfs: xfs_qm_dquot_isolate needs locking annotations for sparse Message-Id: <1411601863-19594-3-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411601863-19594-1-git-send-email-david@fromorbit.com> References: <1411601863-19594-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1411601868 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9840 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner To remove noise from the build. Signed-off-by: Dave Chinner --- fs/xfs/xfs_qm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c index 1023210..d68f230 100644 --- a/fs/xfs/xfs_qm.c +++ b/fs/xfs/xfs_qm.c @@ -434,6 +434,7 @@ xfs_qm_dquot_isolate( struct list_head *item, spinlock_t *lru_lock, void *arg) + __releases(lru_lock) __acquires(lru_lock) { struct xfs_dquot *dqp = container_of(item, struct xfs_dquot, q_lru); -- 2.0.0 From dave@fromorbit.com Wed Sep 24 18:37:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id F0A197F74 for ; Wed, 24 Sep 2014 18:37:51 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id DE75F8F8033 for ; Wed, 24 Sep 2014 16:37:51 -0700 (PDT) X-ASG-Debug-ID: 1411601867-04cb6c50e6137040003-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id gQaPxXnmPyy7BE1n for ; Wed, 24 Sep 2014 16:37:50 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArUVADdVI1R5LHimPGdsb2JhbABggw6IYq5UBp0QFwEGAQEBATg4hAQBBVYzCBgxOQMHFBmIPcRXhhKKKYQ1BbZpKy+CSgEBAQ Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail06.adl2.internode.on.net with ESMTP; 25 Sep 2014 09:07:46 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XWw81-0004yH-Lp for xfs@oss.sgi.com; Thu, 25 Sep 2014 09:37:45 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XWw81-00056y-Kl for xfs@oss.sgi.com; Thu, 25 Sep 2014 09:37:45 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 4/4] xfs: annotate user variables passed as void Date: Thu, 25 Sep 2014 09:37:43 +1000 X-ASG-Orig-Subj: [PATCH 4/4] xfs: annotate user variables passed as void Message-Id: <1411601863-19594-5-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411601863-19594-1-git-send-email-david@fromorbit.com> References: <1411601863-19594-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1411601870 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9840 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner Some argument callbacks can contain user buffers, and sparse warns about passing them as void pointers. Cast appropriately to remove the sparse warnings. Signed-off-by: Dave Chinner --- fs/xfs/xfs_ioctl.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index 3799695..7a6b406 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -1349,7 +1349,7 @@ xfs_ioc_setxflags( STATIC int xfs_getbmap_format(void **ap, struct getbmapx *bmv, int *full) { - struct getbmap __user *base = *ap; + struct getbmap __user *base = (struct getbmap __user *)*ap; /* copy only getbmap portion (not getbmapx) */ if (copy_to_user(base, bmv, sizeof(struct getbmap))) @@ -1380,7 +1380,7 @@ xfs_ioc_getbmap( bmx.bmv_iflags |= BMV_IF_NO_DMAPI_READ; error = xfs_getbmap(ip, &bmx, xfs_getbmap_format, - (struct getbmap *)arg+1); + (__force struct getbmap *)arg+1); if (error) return error; @@ -1393,7 +1393,7 @@ xfs_ioc_getbmap( STATIC int xfs_getbmapx_format(void **ap, struct getbmapx *bmv, int *full) { - struct getbmapx __user *base = *ap; + struct getbmapx __user *base = (struct getbmapx __user *)*ap; if (copy_to_user(base, bmv, sizeof(struct getbmapx))) return -EFAULT; @@ -1420,7 +1420,7 @@ xfs_ioc_getbmapx( return -EINVAL; error = xfs_getbmap(ip, &bmx, xfs_getbmapx_format, - (struct getbmapx *)arg+1); + (__force struct getbmapx *)arg+1); if (error) return error; -- 2.0.0 From dave@fromorbit.com Wed Sep 24 18:37:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 7050D7F74 for ; Wed, 24 Sep 2014 18:37:52 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id F2FE0AC004 for ; Wed, 24 Sep 2014 16:37:51 -0700 (PDT) X-ASG-Debug-ID: 1411601869-04cb6c50e4137040001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id 1DpYRzeD386ctHM3 for ; Wed, 24 Sep 2014 16:37:49 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArUVADdVI1R5LHimPGdsb2JhbABggw6IYq5UBp0QFwEGAQEBATg4hAQBBScvMwhJOQMHFBmIPcRXhhKKKYQ1BZhWkQSNDysvgkoBAQE Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail06.adl2.internode.on.net with ESMTP; 25 Sep 2014 09:07:46 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XWw81-0004yE-Ju for xfs@oss.sgi.com; Thu, 25 Sep 2014 09:37:45 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XWw81-00056j-Iq for xfs@oss.sgi.com; Thu, 25 Sep 2014 09:37:45 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 1/4] xfs: fix use of agi_newino in finobt lookup Date: Thu, 25 Sep 2014 09:37:40 +1000 X-ASG-Orig-Subj: [PATCH 1/4] xfs: fix use of agi_newino in finobt lookup Message-Id: <1411601863-19594-2-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411601863-19594-1-git-send-email-david@fromorbit.com> References: <1411601863-19594-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1411601869 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9840 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Sparse warns that we are passing the big-endian valueo f agi_newino to the initial btree lookup function when trying to find a new inode. This is wrong - we need to pass the host order value, not the disk order value. This will adversely affect the next inode allocated, but given that the free inode btree is usually much smaller than the allocated inode btree it is much less likely to be a performance issue if we start the search in the wrong place. Signed-off-by: Dave Chinner --- fs/xfs/libxfs/xfs_ialloc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c index d213a2e..23dcb72 100644 --- a/fs/xfs/libxfs/xfs_ialloc.c +++ b/fs/xfs/libxfs/xfs_ialloc.c @@ -1076,8 +1076,8 @@ xfs_dialloc_ag_finobt_newino( int i; if (agi->agi_newino != cpu_to_be32(NULLAGINO)) { - error = xfs_inobt_lookup(cur, agi->agi_newino, XFS_LOOKUP_EQ, - &i); + error = xfs_inobt_lookup(cur, be32_to_cpu(agi->agi_newino), + XFS_LOOKUP_EQ, &i); if (error) return error; if (i == 1) { @@ -1085,7 +1085,6 @@ xfs_dialloc_ag_finobt_newino( if (error) return error; XFS_WANT_CORRUPTED_RETURN(i == 1); - return 0; } } -- 2.0.0 From dave@fromorbit.com Wed Sep 24 18:37:53 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 03ACE7F82 for ; Wed, 24 Sep 2014 18:37:53 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id C88A6304039 for ; Wed, 24 Sep 2014 16:37:52 -0700 (PDT) X-ASG-Debug-ID: 1411601870-04bdf003a014c3b0001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id KHbiuVYRaSyhVOw4 for ; Wed, 24 Sep 2014 16:37:51 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArUVADdVI1R5LHimPGdsb2JhbABggw6IYq5UBp0QFwEGAQEBATg4hAQBBScvMwgYMTkDBxQZiD3EV4YSiimENQWpWo0PKy+CSgEBAQ Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail06.adl2.internode.on.net with ESMTP; 25 Sep 2014 09:07:46 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XWw81-0004yG-LJ for xfs@oss.sgi.com; Thu, 25 Sep 2014 09:37:45 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XWw81-00056t-Ju for xfs@oss.sgi.com; Thu, 25 Sep 2014 09:37:45 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 3/4] xfs: xfs_kset should be static Date: Thu, 25 Sep 2014 09:37:42 +1000 X-ASG-Orig-Subj: [PATCH 3/4] xfs: xfs_kset should be static Message-Id: <1411601863-19594-4-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411601863-19594-1-git-send-email-david@fromorbit.com> References: <1411601863-19594-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1411601870 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9840 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner As it is accessed through the struct xfs_mount and can be set up entirely from fs/xfs/xfs_super.c Signed-off-by: Dave Chinner --- fs/xfs/xfs_mount.c | 3 --- fs/xfs/xfs_super.c | 3 ++- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index fbf0384..d36bdbc 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -61,8 +61,6 @@ static DEFINE_MUTEX(xfs_uuid_table_mutex); static int xfs_uuid_table_size; static uuid_t *xfs_uuid_table; -extern struct kset *xfs_kset; - /* * See if the UUID is unique among mounted XFS filesystems. * Mount fails if UUID is nil or a FS with the same UUID is already mounted. @@ -729,7 +727,6 @@ xfs_mountfs( xfs_set_maxicount(mp); - mp->m_kobj.kobject.kset = xfs_kset; error = xfs_sysfs_init(&mp->m_kobj, &xfs_mp_ktype, NULL, mp->m_fsname); if (error) goto out; diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index dcd4b93..9f622fe 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -63,7 +63,7 @@ static const struct super_operations xfs_super_operations; static kmem_zone_t *xfs_ioend_zone; mempool_t *xfs_ioend_pool; -struct kset *xfs_kset; /* top-level xfs sysfs dir */ +static struct kset *xfs_kset; /* top-level xfs sysfs dir */ #ifdef DEBUG static struct xfs_kobj xfs_dbg_kobj; /* global debug sysfs attrs */ #endif @@ -1411,6 +1411,7 @@ xfs_fs_fill_super( atomic_set(&mp->m_active_trans, 0); INIT_DELAYED_WORK(&mp->m_reclaim_work, xfs_reclaim_worker); INIT_DELAYED_WORK(&mp->m_eofblocks_work, xfs_eofblocks_worker); + mp->m_kobj.kobject.kset = xfs_kset; mp->m_super = sb; sb->s_fs_info = mp; -- 2.0.0 From diane@caltech.edu Wed Sep 24 19:25:32 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 832F77F76 for ; Wed, 24 Sep 2014 19:25:32 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 2FC67AC002 for ; Wed, 24 Sep 2014 17:25:29 -0700 (PDT) X-ASG-Debug-ID: 1411604727-04bdf003a114e8d0001-NocioJ Received: from chaos.caltech.edu (chaos.caltech.edu [131.215.34.119]) by cuda.sgi.com with ESMTP id Ef7HBpce5xxBaFdS (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO) for ; Wed, 24 Sep 2014 17:25:28 -0700 (PDT) X-Barracuda-Envelope-From: diane@caltech.edu X-Barracuda-Apparent-Source-IP: 131.215.34.119 Received: from dhcp-54-193.caltech.edu ([131.215.54.193] helo=myrada.localnet) by chaos.caltech.edu with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.80) (envelope-from ) id 1XWwsB-00030d-8a; Wed, 24 Sep 2014 17:25:27 -0700 From: Diane Trout To: Eric Sandeen Cc: xfs-oss Subject: Re: Corrupted file system Date: Wed, 24 Sep 2014 17:25:12 -0700 X-ASG-Orig-Subj: Re: Corrupted file system Message-ID: <2047180.98c6Ryq0NE@myrada> User-Agent: KMail/4.14 (Linux/3.14-2-amd64; KDE/4.14.1; x86_64; ; ) In-Reply-To: <54233051.4070709@sandeen.net> References: <5839367.DyqsVHbRuQ@myrada> <705802842.F0QjhfVGQR@myrada> <54233051.4070709@sandeen.net> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="iso-8859-1" X-Barracuda-Connect: chaos.caltech.edu[131.215.34.119] X-Barracuda-Start-Time: 1411604728 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9842 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Huh. I'd managed to make a metadump using the 3.1.7 version of the tools. Th= en I=20 tried to run xfs_repair on the partition, and now xfs_metadump is segfa= ulting=20 on the partition. Would the older metadata dump be useful? I'd need to rebuild xfsprogs before the stack trace would be useful... = debian=20 likes to strip the symbols and they didn't make a -dbg package. Diane On Wednesday, September 24, 2014 15:57:53 Eric Sandeen wrote: > If you want to make a metadata image, compress it, and send it my way= I'd be > glad to look at it - I've been doing some repair work lately. >=20 > -Eric >=20 > On 9/24/14 3:38 PM, Diane Trout wrote: > > On Wednesday, September 24, 2014 12:08:40 Emmanuel Florac wrote: > >> Le Tue, 23 Sep 2014 15:02:57 -0700 > >>=20 > >> Diane Trout =E9crivait: > >>> I had a raid failure at work that ended up corrupting an xfs > >>> filesystem the tail of the xfs_repair command looks like the belo= w. I > >>> was able to generate a metadata dump but is there a point to maki= ng > >>> it available? > >>>=20 > >>> It does crash repeatedly at the same place > >>=20 > >> Did you try the very latest xfs_repair? > >=20 > > I grabbed the one out of debian unstable (3.2.1), verified that it = was > > your > > latest release and used that. I didn't try building the version in = git. > >=20 > > It did get much further than version 3.1.7+b1 (debian stable) > >=20 > > Diane > >=20 > > Phase 6 - check inode connectivity... > >=20 > > - resetting contents of realtime bitmap and summary inodes > > - traversing filesystem ... > >=20 > > entry "lymphoblastoid" in dir ino 256 doesn't have a .. entry, will= set it > > in ino 2051. > > bad hash table for directory inode 256 (no data entry): rebuilding > > rebuilding directory inode 256 > > 7f70c79c8700: Badness in key lookup (length) > > bp=3D(bno 0x3480, len 4096 bytes) key=3D(bno 0x3480, len 8192 bytes= ) > > Metadata corruption detected at block 0x4000070/0x1000 > > xfs_da_do_buf(2): XFS_CORRUPTION_ERROR > >=20 > > fatal error -- can't read block 8388608 for directory inode 259, er= ror 117 > >=20 > >=20 > > _______________________________________________ > > xfs mailing list > > xfs@oss.sgi.com > > http://oss.sgi.com/mailman/listinfo/xfs From sandeen@sandeen.net Wed Sep 24 19:50:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E76607F78 for ; Wed, 24 Sep 2014 19:50:25 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 656E1AC004 for ; Wed, 24 Sep 2014 17:50:25 -0700 (PDT) X-ASG-Debug-ID: 1411606223-04cb6c50e413a0b0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id m0GbEEXuYcQfboHY for ; Wed, 24 Sep 2014 17:50:23 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 9A1DD608F745; Wed, 24 Sep 2014 19:50:23 -0500 (CDT) Message-ID: <542366CF.3040905@sandeen.net> Date: Wed, 24 Sep 2014 19:50:23 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Diane Trout CC: xfs-oss Subject: Re: Corrupted file system References: <5839367.DyqsVHbRuQ@myrada> <705802842.F0QjhfVGQR@myrada> <54233051.4070709@sandeen.net> <2047180.98c6Ryq0NE@myrada> X-ASG-Orig-Subj: Re: Corrupted file system In-Reply-To: <2047180.98c6Ryq0NE@myrada> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1411606223 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9843 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/24/14 7:25 PM, Diane Trout wrote: > Huh. > > I'd managed to make a metadump using the 3.1.7 version of the tools. Then I > tried to run xfs_repair on the partition, and now xfs_metadump is segfaulting > on the partition. > > Would the older metadata dump be useful? sure. Compress it & send me a private note with it attached (or with a location if it's too big to email) -Eric > I'd need to rebuild xfsprogs before the stack trace would be useful... debian > likes to strip the symbols and they didn't make a -dbg package. > > Diane > > On Wednesday, September 24, 2014 15:57:53 Eric Sandeen wrote: >> If you want to make a metadata image, compress it, and send it my way I'd be >> glad to look at it - I've been doing some repair work lately. >> >> -Eric >> >> On 9/24/14 3:38 PM, Diane Trout wrote: >>> On Wednesday, September 24, 2014 12:08:40 Emmanuel Florac wrote: >>>> Le Tue, 23 Sep 2014 15:02:57 -0700 >>>> >>>> Diane Trout écrivait: >>>>> I had a raid failure at work that ended up corrupting an xfs >>>>> filesystem the tail of the xfs_repair command looks like the below. I >>>>> was able to generate a metadata dump but is there a point to making >>>>> it available? >>>>> >>>>> It does crash repeatedly at the same place >>>> >>>> Did you try the very latest xfs_repair? >>> >>> I grabbed the one out of debian unstable (3.2.1), verified that it was >>> your >>> latest release and used that. I didn't try building the version in git. >>> >>> It did get much further than version 3.1.7+b1 (debian stable) >>> >>> Diane >>> >>> Phase 6 - check inode connectivity... >>> >>> - resetting contents of realtime bitmap and summary inodes >>> - traversing filesystem ... >>> >>> entry "lymphoblastoid" in dir ino 256 doesn't have a .. entry, will set it >>> in ino 2051. >>> bad hash table for directory inode 256 (no data entry): rebuilding >>> rebuilding directory inode 256 >>> 7f70c79c8700: Badness in key lookup (length) >>> bp=(bno 0x3480, len 4096 bytes) key=(bno 0x3480, len 8192 bytes) >>> Metadata corruption detected at block 0x4000070/0x1000 >>> xfs_da_do_buf(2): XFS_CORRUPTION_ERROR >>> >>> fatal error -- can't read block 8388608 for directory inode 259, error 117 >>> >>> >>> _______________________________________________ >>> xfs mailing list >>> xfs@oss.sgi.com >>> http://oss.sgi.com/mailman/listinfo/xfs > From guaneryu@gmail.com Wed Sep 24 22:54:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,LOTS_OF_MONEY, T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 462737F7B for ; Wed, 24 Sep 2014 22:54:25 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 253F18F8035 for ; Wed, 24 Sep 2014 20:54:22 -0700 (PDT) X-ASG-Debug-ID: 1411617260-04cbb0730117e070001-NocioJ Received: from mail-pd0-f173.google.com (mail-pd0-f173.google.com [209.85.192.173]) by cuda.sgi.com with ESMTP id xbWfEcCOVFPhIB4s (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 24 Sep 2014 20:54:20 -0700 (PDT) X-Barracuda-Envelope-From: guaneryu@gmail.com X-Barracuda-RBL-Trusted-Forwarder: 209.85.192.173 Received: by mail-pd0-f173.google.com with SMTP id w10so234596pde.18 for ; Wed, 24 Sep 2014 20:54:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; bh=UWSfu8VyJxk5gN2IGTYYDqs6jJ/fA5cdxS8ubTaU5G4=; b=aJiylaNZsI/AYro3NlzTTYbX7VlXeyl4R7+BFOEDKqaqUD97lAHEjrBLgJOS3kLSgC aV5nJs2KYeGKYaFPpSdyNz3OJDkLEU9ERpELk8q5wQA5HG5wr7nZg1nseZnNRQv9U4SP tHjJxlX09KNq/6EFO1Aa93CjCwLmdzfwqo9CcmhQGO7gRe8RUTWBbGox8RxLTF/Az9s3 XWZ/NfUO73XtjlQHA4gptBtbqRTrbg5o9p2u7QVeuWRbUsWaMkJRRYAsnUX9cp2mPF2l I8kTOvKPc78BoIdKQWtilOwEd0aQhFICKKH1qzWTUM4yv6m4lQLY8Pp3w8304q9HpWtT e95A== X-Barracuda-BBL-IP: nil X-Received: by 10.68.114.129 with SMTP id jg1mr15063700pbb.38.1411617259821; Wed, 24 Sep 2014 20:54:19 -0700 (PDT) Received: from localhost ([203.114.244.88]) by mx.google.com with ESMTPSA id fo4sm717078pbb.12.2014.09.24.20.54.18 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 24 Sep 2014 20:54:19 -0700 (PDT) Date: Thu, 25 Sep 2014 11:54:16 +0800 X-Barracuda-Apparent-Source-IP: 203.114.244.88 From: Eryu Guan To: Brian Foster Cc: fstests@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [PATCH] generic/033: add xfs delalloc indirect block depletion reproducer Message-ID: <20140925035416.GC13950@dhcp-13-216.nay.redhat.com> X-ASG-Orig-Subj: Re: [PATCH] generic/033: add xfs delalloc indirect block depletion reproducer References: <1411584425-52709-1-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411584425-52709-1-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: mail-pd0-f173.google.com[209.85.192.173] X-Barracuda-Start-Time: 1411617260 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9848 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Wed, Sep 24, 2014 at 02:47:05PM -0400, Brian Foster wrote: > XFS allocates extra indirect blocks for delayed allocation extents at > write time. When delalloc extents are split, the existing indirect block > reservation was historically divided up evenly among the new extents > even though the overall requirement for two extents could exceed the > requirement for the original. Repeated delalloc extent splits ultimately > leads to extents with 0 indirect blocks and in turn leads to assert > failures in XFS. > > Add a test to stress indirect block reservation for delayed allocation > extents. The test converts a single delalloc extent to many and operates > on the remaining extents to detect or trigger potential problems. > > Signed-off-by: Brian Foster > --- > > Here's a simple reproducer for the indirect block reservation problem > called out here: > > http://oss.sgi.com/archives/xfs/2014-09/msg00337.html > > It reproduces the assert failures described therein: > > XFS: Assertion failed: startblockval(del.br_startblock) > 0, file: fs/xfs/libxfs/xfs_bmap.c, line: 5281 > > Note that this test also unintentionally fails on XFS. The test file > ends up zero-sized after the remount and thus hexdump doesn't produce > any output. This doesn't occur on ext4, I suspect due to the fact that > the range being zeroed is flushed beforehand, though I could be wrong > about that. Tested with ext4 and xfs, and ext4 passes/xfs fails the test as described here. Reviewed-by: Eryu Guan With one nitpick below.. > > In any event, this calls out a separate bug in XFS where if appending > data is chucked from cache by zero range before written back (eof is > page aligned), we lose the on-disk inode size update and the inode size > changes unexpectedly across the remount (assuming nothing else changes > the size, of course). > > Brian > > tests/generic/033 | 88 +++++++++++++++++++++++++++++++++++++++++++++++++++ > tests/generic/033.out | 4 +++ > tests/generic/group | 1 + > 3 files changed, 93 insertions(+) > create mode 100755 tests/generic/033 > create mode 100644 tests/generic/033.out > > diff --git a/tests/generic/033 b/tests/generic/033 > new file mode 100755 > index 0000000..41198b7 > --- /dev/null > +++ b/tests/generic/033 > @@ -0,0 +1,88 @@ > +#! /bin/bash > +# FS QA Test No. 033 > +# > +# This test stresses indirect block reservation for delayed allocation extents. > +# XFS reserves extra blocks for deferred allocation of delalloc extents. These > +# reserved blocks can be divided among more extents than anticipated if the > +# original extent for which the blocks were reserved is split into multiple > +# delalloc extents. If this scenario repeats, eventually some extents are left > +# without any indirect block reservation whatsoever. This leads to assert > +# failures and possibly other problems in XFS. > +# > +#----------------------------------------------------------------------- > +# Copyright (c) 2014 Red Hat, Inc. All Rights Reserved. > +# > +# This program is free software; you can redistribute it and/or > +# modify it under the terms of the GNU General Public License as > +# published by the Free Software Foundation. > +# > +# This program is distributed in the hope that it would be useful, > +# but WITHOUT ANY WARRANTY; without even the implied warranty of > +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > +# GNU General Public License for more details. > +# > +# You should have received a copy of the GNU General Public License > +# along with this program; if not, write the Free Software Foundation, > +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA > +#----------------------------------------------------------------------- > +# > + > +seq=`basename $0` > +seqres=$RESULT_DIR/$seq > +echo "QA output created by $seq" > + > +here=`pwd` > +tmp=/tmp/$$ > +status=1 # failure is the default! > +trap "_cleanup; exit \$status" 0 1 2 3 15 > + > +_cleanup() > +{ > + cd / > + rm -f $tmp.* > +} > + > +# get standard environment, filters and checks > +. ./common/rc > +. ./common/filter > + > +# real QA test starts here > +rm -f $seqres.full > + > +# Modify as appropriate. > +_supported_fs generic > +_supported_os Linux > +_require_scratch > +_require_xfs_io_command "fzero" > + > +_scratch_mkfs >/dev/null 2>&1 > +_scratch_mount > + > +file=$SCRATCH_MNT/file.$seq > +bytes=$((64 * 1024)) > + > +# create sequential delayed allocation > +$XFS_IO_PROG -f -c "pwrite 0 $bytes" $file | _filter_xfs_io \ > + >> $seqres.full 2>&1 The output of xfs_io is redirected to $seqres.full, so it's not necessary to be filtered, for debug purpose. And the following two xfs_io calls. Thanks, Eryu > + > +# Zero every other 4k range to split the larger delalloc extent into many more > +# smaller extents. Use zero instead of hole punch because the former does not > +# force writeback (and hence delalloc conversion). It can simply discard > +# delalloc blocks and convert the ranges to unwritten. > +endoff=$((bytes - 4096)) > +for i in $(seq 0 8192 $endoff); do > + $XFS_IO_PROG -c "fzero -k $i 4k" $file | _filter_xfs_io \ > + >> $seqres.full 2>&1 > +done > + > +# now zero the opposite set to remove remaining delalloc extents > +for i in $(seq 4096 8192 $endoff); do > + $XFS_IO_PROG -c "fzero -k $i 4k" $file | _filter_xfs_io \ > + >> $seqres.full 2>&1 > +done > + > +_scratch_remount > +hexdump $file > + > +status=0 > +exit > diff --git a/tests/generic/033.out b/tests/generic/033.out > new file mode 100644 > index 0000000..419d831 > --- /dev/null > +++ b/tests/generic/033.out > @@ -0,0 +1,4 @@ > +QA output created by 033 > +0000000 0000 0000 0000 0000 0000 0000 0000 0000 > +* > +0010000 > diff --git a/tests/generic/group b/tests/generic/group > index 8e0c22a..1227408 100644 > --- a/tests/generic/group > +++ b/tests/generic/group > @@ -32,6 +32,7 @@ > 027 auto enospc > 028 auto quick > 032 auto quick rw > +033 auto quick rw > 053 acl repair auto quick > 062 attr udf auto quick > 068 other auto freeze dangerous stress > -- > 1.8.3.1 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From talonx@gmail.com Thu Sep 25 01:08:33 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE, T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4FC9D7F7E for ; Thu, 25 Sep 2014 01:08:33 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 122848F8035 for ; Wed, 24 Sep 2014 23:08:30 -0700 (PDT) X-ASG-Debug-ID: 1411625307-04bdf003a119b360001-NocioJ Received: from mail-ie0-f179.google.com (mail-ie0-f179.google.com [209.85.223.179]) by cuda.sgi.com with ESMTP id 6qRMN30kgVAoBb0v (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 24 Sep 2014 23:08:27 -0700 (PDT) X-Barracuda-Envelope-From: talonx@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.223.179 X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.179] Received: by mail-ie0-f179.google.com with SMTP id tp5so8310372ieb.10 for ; Wed, 24 Sep 2014 23:08:27 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.179] X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.179] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type; bh=p6gxQtswQzpDbCg9WmF5q2yakxJBda3AX14zVDGXIQI=; b=YrlOxgrA7fhoHX0EPV27W+a8LZae8KvhrYoPHEofdpzyQBz3WlUS33VT/ENmvMtdxj zy+2fnU0eZqsfHqc4YcR4hOh8p9vwyEL95/5GwXrTQcGw+gMdDWtbezwR+1bnO7sBbm/ d2aF9VByomhPH3DQTnHJS+emAkljzg4LowtXX3W+gCCRJsp8RxrYDjWnh9VkwYoNBBsR r2Dn6s0cseXesUHtJrImeXPXvvccKsfFDDtMswuxFAKcz9uiibobHZM5DSCkjiybXMTU ySLeAhrLbty4S+wYz4mNreGUgLFuIjhbOATPVUz06My4i7fD0mLWYWqoJSsJyGG5Pvlb XC/A== X-Received: by 10.43.128.7 with SMTP id hc7mr16129122icc.63.1411625307369; Wed, 24 Sep 2014 23:08:27 -0700 (PDT) MIME-Version: 1.0 Received: by 10.64.0.37 with HTTP; Wed, 24 Sep 2014 23:07:47 -0700 (PDT) In-Reply-To: References: <20140716124757.GC36312@bfoster.bfoster> From: Hrishikesh Barua Date: Thu, 25 Sep 2014 11:37:47 +0530 Message-ID: Subject: Re: Occassional problems with unfreeze To: Brian Foster , xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Occassional problems with unfreeze Content-Type: multipart/alternative; boundary=001a11c219e4007a950503dda13a X-Barracuda-Connect: mail-ie0-f179.google.com[209.85.223.179] X-Barracuda-Start-Time: 1411625307 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-BRTS-Evidence: deepinspace.net X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9851 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message --001a11c219e4007a950503dda13a Content-Type: text/plain; charset=UTF-8 This happened again yesterday and I took the "echo w > /proc/sysrq-trigger". Output - http://pastebin.com/rpKNSYY7 - Hrish On 16 July 2014 18:53, Hrishikesh Barua wrote: > > On 16 July 2014 18:17, Brian Foster wrote: > >> >> That one looks like a freeze hang whereas you see an unfreeze hang. >> > You are right. My bad. > > >> Perhaps similar to this: >> >> https://bugzilla.redhat.com/show_bug.cgi?id=1052004 >> > Looks like I can't access that bug report, even after logging in. The > error message says "Most likely the bug has been restricted for internal > development processes and we cannot grant access." > >> >> > >> > No resolution seems to have happened there. Is this a known bug, or has >> it >> > been fixed since (I'm running xfsprogs 3.1.7) ? >> > >> >> Do you have the hung task output for when this occurs (echo w > >> /proc/sysrq-trigger)? >> > No, but I'll get it the next time it happens. Thanks for the tip. > >> >> Brian >> >> > Regards >> > Hrish >> >> > _______________________________________________ >> > xfs mailing list >> > xfs@oss.sgi.com >> > http://oss.sgi.com/mailman/listinfo/xfs >> >> > -- You can't be normal and expect abnormal returns - Jeffrey Pfeffer ------------------------------------------ http://code.deepinspace.net ------------------------------------------ --001a11c219e4007a950503dda13a Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
This happened again yesterday and I took the &qu= ot;echo w > /proc/sysrq-trigger".
Output - http://pastebin.com/rpKNSYY7

- = Hrish

On= 16 July 2014 18:53, Hrishikesh Barua <talonx@gmail.com> wrot= e:

On 16 July 2014 18:17= , Brian Foster <bfoster@redhat.com> wrote:

That one looks like a freeze hang whereas you see an unfreeze hang.
You are right. My bad.
=C2=A0
Perhaps similar to this:

https://bugzilla.redhat.com/show_bug.cgi?id=3D1052004
Looks like I can't access that bug report, even aft= er logging in. The error message says=C2=A0 "Most likely the bug has b= een restricted for internal development processes and we cannot grant acces= s."

>
> No resolution seems to have happened there. Is this a known bug, or ha= s it
> been fixed since (I'm running xfsprogs 3.1.7) ?
>

Do you have the hung task output for when this occurs (echo w > /proc/sysrq-trigger)?
No, but I'll get it t= he next time it happens. Thanks for the tip.

Brian

> Regards
> Hrish

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





--
You can't be normal= and expect abnormal returns - Jeffrey Pfeffer
-------------------------= -----------------
http://code.deepinspace.net
------------------------------------= ------
--001a11c219e4007a950503dda13a-- From david@fromorbit.com Thu Sep 25 02:19:23 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 72AC37F80 for ; Thu, 25 Sep 2014 02:19:23 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 43E088F8035 for ; Thu, 25 Sep 2014 00:19:19 -0700 (PDT) X-ASG-Debug-ID: 1411629546-04bdf003a019d7c0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id VFR3PpyQKDikm9hn for ; Thu, 25 Sep 2014 00:19:07 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjMmADvBI1R5LHim/2dsb2JhbABggw5TUwSCMbNmBpQygWGFawQCAYEGFwF6hAQBAQQ6HCMQCAMOCgkMGQ8FJQMhE4g9CcMRGBiFeooMBwqDJIEdBZYYhwiBYo0whkOBaSCBaysvgkoBAQE Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail07.adl2.internode.on.net with ESMTP; 25 Sep 2014 16:49:05 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XX3KG-00061Q-Rr; Thu, 25 Sep 2014 17:18:52 +1000 Date: Thu, 25 Sep 2014 17:18:52 +1000 From: Dave Chinner To: Hrishikesh Barua Cc: Brian Foster , xfs@oss.sgi.com Subject: Re: Occassional problems with unfreeze Message-ID: <20140925071852.GE4758@dastard> X-ASG-Orig-Subj: Re: Occassional problems with unfreeze References: <20140716124757.GC36312@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1411629546 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9853 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Sep 25, 2014 at 11:37:47AM +0530, Hrishikesh Barua wrote: > This happened again yesterday and I took the "echo w > > /proc/sysrq-trigger". > Output - http://pastebin.com/rpKNSYY7 How long have you been ignoring these messages for? [30278027.798067] XFS (xvdj): xlog_space_left: head behind tail [30278027.798069] tail_cycle = 1085, tail_bytes = 1041920 [30278027.798070] GH cycle = 1085, GH bytes = 1039296 XFS is emitting that warning several times a second. Isn't that a pretty good sign that there's something not quite right and is worth reporting? Indeed, you are running an old kern (3.2.0-54) which means it won't have this fix: 3948659 xfs: Account log unmount transaction correctly And that's likely to be the source of all your freeze/unfreeze problems because it will eventually hang the log when it's leaked all it's space in the ether.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Sep 25 02:26:57 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 771907F78 for ; Thu, 25 Sep 2014 02:26:57 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 62655304051 for ; Thu, 25 Sep 2014 00:26:57 -0700 (PDT) X-ASG-Debug-ID: 1411630014-04cbb073021f1940001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id RDQnsJfFZKfpE8a2 for ; Thu, 25 Sep 2014 00:26:54 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvElAGfCI1R5LHim/2dsb2JhbABggw6BKoIxs2kGiyuKaIVrBAIBgQYXAXqEBAEBBCcTHCMQCAMOCgklDwUlAyETiD3DGAEXGIV6igwHgy6BHQEEnSCMQQSJEIN0Ky+CSgEBAQ Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail07.adl2.internode.on.net with ESMTP; 25 Sep 2014 16:56:53 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XX3Ro-00062T-Vs; Thu, 25 Sep 2014 17:26:40 +1000 Date: Thu, 25 Sep 2014 17:26:40 +1000 From: Dave Chinner To: Jan Kara Cc: Li Xi , adilger@dilger.ca, linux-api@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, dmonakhov@openvz.org, viro@zeniv.linux.org.uk, linux-fsdevel@vger.kernel.org, tytso@mit.edu, linux-ext4@vger.kernel.org Subject: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project Message-ID: <20140925072640.GF4758@dastard> X-ASG-Orig-Subj: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project References: <1411567470-31799-1-git-send-email-lixi@ddn.com> <1411567470-31799-5-git-send-email-lixi@ddn.com> <20140924162507.GC27000@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140924162507.GC27000@quack.suse.cz> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1411630014 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9854 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Sep 24, 2014 at 06:25:07PM +0200, Jan Kara wrote: > On Wed 24-09-14 22:04:30, Li Xi wrote: > > This patch adds ioctl interface for setting/getting project of ext4. > The patch looks good to me. I was just wondering whether it won't be > useful to add an ioctl() which isn't ext4 specific. We could just extend > ->setattr() to allow setting of project ID (most filesystems would just > return -EOPNOTSUPP but ext4 and xfs could do the right thing) and then call > ->setattr from the generic ioctl. That way userspace won't have to care > about filesystem type when setting project ID... What do others think? I've repeatedly said that these ext4 project ID patches should implement the same interfaces as XFS rather than creating a new set of incompatible, ext4 specific interfaces to do implement the same functionality. There is no good reason for forcing userspace to re-invent tools that already exist just to manage identical functionality in different filesystems. Cheers, Dave. -- Dave Chinner david@fromorbit.com From sdray@espial.com Thu Sep 25 02:30:28 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=2.0 required=5.0 tests=DEAR_SOMETHING,HTML_MESSAGE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 09F327F80 for ; Thu, 25 Sep 2014 02:30:28 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id EAE218F8035 for ; Thu, 25 Sep 2014 00:30:27 -0700 (PDT) X-ASG-Debug-ID: 1411630225-04cb6c50e718e600001-NocioJ Received: from na01-bn1-obe.outbound.protection.outlook.com (mail-bn1on0117.outbound.protection.outlook.com [157.56.110.117]) by cuda.sgi.com with ESMTP id DNmXxuPn36o54qZw (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 25 Sep 2014 00:30:25 -0700 (PDT) X-Barracuda-Envelope-From: sdray@Espial.com X-Barracuda-Apparent-Source-IP: 157.56.110.117 Received: from BN1PR0301MB0625.namprd03.prod.outlook.com (25.160.170.28) by BN1PR0301MB0627.namprd03.prod.outlook.com (25.160.171.12) with Microsoft SMTP Server (TLS) id 15.0.1039.15; Thu, 25 Sep 2014 07:30:23 +0000 Received: from BN1PR0301MB0625.namprd03.prod.outlook.com ([25.160.170.28]) by BN1PR0301MB0625.namprd03.prod.outlook.com ([25.160.170.28]) with mapi id 15.00.1034.003; Thu, 25 Sep 2014 07:30:23 +0000 From: Simon Dray To: "xfs@oss.sgi.com" Subject: XFS issue xfs goes offline with various messages drive not recoverable without reboot Thread-Topic: XFS issue xfs goes offline with various messages drive not recoverable without reboot X-ASG-Orig-Subj: XFS issue xfs goes offline with various messages drive not recoverable without reboot Thread-Index: Ac/YkpDG9jVR1llKTc+P4l4O2U49Aw== Date: Thu, 25 Sep 2014 07:30:23 +0000 Message-ID: Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [212.44.45.165] x-microsoft-antispam: BCL:0;PCL:0;RULEID:;SRVR:BN1PR0301MB0627; x-forefront-prvs: 0345CFD558 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(6009001)(189002)(54094003)(199003)(19300405004)(76482002)(83322001)(15202345003)(19580405001)(50986999)(54356999)(2656002)(16236675004)(31966008)(86362001)(92566001)(19580395003)(21056001)(10300001)(101416001)(20776003)(46102003)(19625215002)(15975445006)(4396001)(85306004)(64706001)(120916001)(74502003)(74662003)(77982003)(81342003)(79102003)(81542003)(80022003)(106356001)(2501002)(107046002)(18717965001)(2351001)(90102001)(229853001)(107886001)(76576001)(97736003)(33646002)(105586002)(74316001)(77096002)(83072002)(108616004)(85852003)(87936001)(99286002)(66066001)(95666004)(99396003)(110136001)(24736002);DIR:OUT;SFP:1102;SCL:1;SRVR:BN1PR0301MB0627;H:BN1PR0301MB0625.namprd03.prod.outlook.com;FPR:;MLV:sfv;PTR:InfoNoRecords;MX:1;A:1;LANG:en; Content-Type: multipart/alternative; boundary="_000_dd6d1d6e9fa7469584e72574347bb088BN1PR0301MB0625namprd03_" MIME-Version: 1.0 X-OriginatorOrg: Espial.com X-Barracuda-Connect: mail-bn1on0117.outbound.protection.outlook.com[157.56.110.117] X-Barracuda-Start-Time: 1411630225 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.02 X-Barracuda-Spam-Status: No, SCORE=0.02 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE, THREAD_INDEX, THREAD_TOPIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9853 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig== 0.01 THREAD_TOPIC Thread-Topic: ...(Japanese Subject)... 0.00 HTML_MESSAGE BODY: HTML included in message --_000_dd6d1d6e9fa7469584e72574347bb088BN1PR0301MB0625namprd03_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Dear Sirs I wonder if you can help with an issue we see re-occuring on a regular basi= s with one of our HP systems which uses a HP 420 Raid controller Action taken We first saw the following: [root@ content]# ls ls: cannot open directory .: Input/output error [root@ /]# ls -ltr ls: cannot access content total 358 d?????????? ? ? ? ? ? content drwxr-xr-x. 2 root root 4096 Jun 28 2011 srv drwxr-xr-x. 2 root root 4096 Jun 28 2011 media drwxr-xr-x. 2 root root 4096 Feb 22 2012 cgroup drwx------. 2 root root 16384 Jul 21 2012 lost+found drwxr-xr-x. 2 root root 4096 Jul 21 2012 selinux We try to run: [root@ /]# xfs_check /dev/md0 xfs_check: /dev/md0 contains a mounted and writable filesystem fatal error -- couldn't initialize XFS library We also tried to umount the /dev/md0 before runniing xfs_check but no luck.= We received the error: device is in use We use xfs for one of our large raid file systems and we are seeing the xfs= filesystem go offline with the following messages in dmesg messages-20140921:Sep 18 23:01: kernel: XFS (md0): Device md0: metadata wri= te error block 0x5e28623d8 messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): I/O error occurred: me= ta-data dev md0 block 0x445cccc40 ("xlog_iodone") error 5 buf count 32768 messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): xfs_do_force_shutdown(= 0x2) called from line 891 of file fs/xfs/xfs_log.c. Return address =3D 0xff= ffffffa2c428dc messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): Log I/O Error Detected= . Shutting down filesystem messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): Please umount the file= system and rectify the problem(s) messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): xfs_imap_to_bp: xfs_tr= ans_read_buf() returned error 5. messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): xfs_iunlink_remove: xf= s_itobp() returned error 5. messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): I/O error occurred: me= ta-data dev md0 block 0x445cccc80 ("xlog_iodone") error 5 buf count 32768 messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): xfs_do_force_shutdown(= 0x2) called from line 891 of file fs/xfs/xfs_log.c. Return address =3D 0xff= ffffffa2c428dc XFS (md0): xfs_log_force: error 5 returned. XFS (md0): xfs_log_force: error 5 returned. XFS (md0): xfs_log_force: error 5 returned. In all occurrences the only way to recover from this is to reboot the syste= m and allow xfs_repair to run during boot this clears the issue until next = time We have checked the RAID health and nothing seems to be amiss, if you could= help with this it would be much appreciated Best regards Simon Simon Dray * p: +44.1223 716.400 p: +44.1223 716.476 e: sdray@espial.com 1st Floor, 335 Cambridge Science Park, Milton Road, Cambridge, Cambridgeshi= re, CB4 0WN, United Kingdom. Understanding is a three-edged sword --_000_dd6d1d6e9fa7469584e72574347bb088BN1PR0301MB0625namprd03_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Dear Sirs

 

I wonder if you can help with an issue we see re-occ= uring on a regular basis with one of our HP systems which uses a HP 420 Rai= d controller

 

Action taken

 

We first saw the following:
[root@ content]# ls
ls: cannot open directory .: Input/output error


[root@ /]# ls -ltr
ls: cannot access content
total 358
d?????????? ? ? ? ? ? content
drwxr-xr-x. 2 root root 4096 Jun 28 2011 srv
drwxr-xr-x. 2 root root 4096 Jun 28 2011 media
drwxr-xr-x. 2 root root 4096 Feb 22 2012 cgroup
drwx------. 2 root root 16384 Jul 21 2012 lost+found
drwxr-xr-x. 2 root root 4096 Jul 21 2012 selinux

We try to run:
[root@ /]# xfs_check /dev/md0
xfs_check: /dev/md0 contains a mounted and writable filesystem
fatal error -- couldn't initialize XFS library
We also tried to umount the /dev/md0 before runniing xfs_check but no luck.= We received the error: device is in use

 

We use xfs for one of our large raid file systems an= d we are seeing the xfs filesystem go offline with the following messages i= n dmesg

 

messages-20140921:Sep 18 23:01: kernel: XFS (md0): D= evice md0: metadata write error block 0x5e28623d8
messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): I/O error occurred: me= ta-data dev md0 block 0x445cccc40 ("xlog_iodone") error 5 buf cou= nt 32768
messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): xfs_do_force_shutdown(= 0x2) called from line 891 of file fs/xfs/xfs_log.c. Return address =3D 0xff= ffffffa2c428dc
messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): Log I/O Error Detected= . Shutting down filesystem
messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): Please umount the file= system and rectify the problem(s)
messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): xfs_imap_to_bp: xfs_tr= ans_read_buf() returned error 5.
messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): xfs_iunlink_remove: xf= s_itobp() returned error 5.
messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): I/O error occurred: me= ta-data dev md0 block 0x445cccc80 ("xlog_iodone") error 5 buf cou= nt 32768
messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): xfs_do_force_shutdown(= 0x2) called from line 891 of file fs/xfs/xfs_log.c. Return address =3D 0xff= ffffffa2c428dc

 

XFS (md0): xfs_log_force: error 5 returned.
XFS (md0): xfs_log_force: error 5 returned.
XFS (md0): xfs_log_force: error 5 returned.

 

In all occurrences the only way to recover from this= is to reboot the system and allow xfs_repair to run during boot this clear= s the issue until next time

 

We have checked the RAID health and nothing seems to= be amiss, if you could help with this it would be much appreciated

 

 

Best regards Simon

 

 

Simon Dray s

 

p: +44.1223 716.400

p: +44.1223 716.476

e: sdray@espial.com

 = ;

1st Floor, 335 Cambridge Science Park, Mi= lton Road, Cambridge, Cambridgeshire, CB4 0WN, United Kingdom.

 

Understand= ing is a three-edged sword<= /p>

 

--_000_dd6d1d6e9fa7469584e72574347bb088BN1PR0301MB0625namprd03_-- From david@fromorbit.com Thu Sep 25 02:59:30 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 2266A7F8A for ; Thu, 25 Sep 2014 02:59:30 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id AFEFDAC004 for ; Thu, 25 Sep 2014 00:59:29 -0700 (PDT) X-ASG-Debug-ID: 1411631967-04bdf0039f19eca0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id dPTc82bhXgWSzyfE for ; Thu, 25 Sep 2014 00:59:27 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvMlAGPKI1R5LHim/2dsb2JhbABggw6BKoIxs2sGiyuKaIVrBAIBgQYXAXqEAwEBAQMBJxMcIwULCAMOCgklDwUlAyETiDYHwwMYGIV6iT9NB4RLBZ0gjEEEiRCDdCsvgQeBQwEBAQ Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail07.adl2.internode.on.net with ESMTP; 25 Sep 2014 17:29:26 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XX3xI-00067w-9P; Thu, 25 Sep 2014 17:59:12 +1000 Date: Thu, 25 Sep 2014 17:59:12 +1000 From: Dave Chinner To: Jan Kara Cc: Christoph Hellwig , adilger@dilger.ca, linux-api@vger.kernel.org, xfs@oss.sgi.com, dmonakhov@openvz.org, viro@zeniv.linux.org.uk, Li Xi , linux-fsdevel@vger.kernel.org, tytso@mit.edu, linux-ext4@vger.kernel.org Subject: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project Message-ID: <20140925075912.GG4758@dastard> X-ASG-Orig-Subj: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project References: <1411567470-31799-1-git-send-email-lixi@ddn.com> <1411567470-31799-5-git-send-email-lixi@ddn.com> <20140924162507.GC27000@quack.suse.cz> <20140924162634.GA16886@infradead.org> <20140924170105.GE27000@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140924170105.GE27000@quack.suse.cz> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1411631967 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9854 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Sep 24, 2014 at 07:01:05PM +0200, Jan Kara wrote: > On Wed 24-09-14 09:26:34, Christoph Hellwig wrote: > > On Wed, Sep 24, 2014 at 06:25:07PM +0200, Jan Kara wrote: > > > On Wed 24-09-14 22:04:30, Li Xi wrote: > > > > This patch adds ioctl interface for setting/getting project of ext4. > > > The patch looks good to me. I was just wondering whether it won't be > > > useful to add an ioctl() which isn't ext4 specific. We could just extend > > > ->setattr() to allow setting of project ID (most filesystems would just > > > return -EOPNOTSUPP but ext4 and xfs could do the right thing) and then call > > > ->setattr from the generic ioctl. That way userspace won't have to care > > > about filesystem type when setting project ID... What do others think? > > > > Absolutely. In general I also wonder why this patch doesn't implement > > the full XFS API. Maybe there is a reason it was considered and > > rejected, but it would be helpful to document why. > Do you mean full get/setfsxattr API? That's a good start. The bigger issue in my mind is that we already have a fully featured quota API that supports project quotas and userspace tools available that manipulate it. xfstests already uses those tools and API for testing project quotas. This whole patchset reinvents all the quota APIs, and will require adding support in userspace, and hence require re-inventing all the test infrastructure we already have because it won't be compatible with the existing project quota test code. > That basically contains project ID, > flags (those that are currently get/set with FS_IOC_GETFLAGS/SETFLAGS), and > extent size hint right? It's a different set of flag definitions. We translate the interface XFS_XFLAG_* values to/from the inode on-disk XFS_DIFLAG_* inode values, just like we translate the VFS FS_*_FL flags that get passed through the FS_IOC_GETFLAGS/SETFLAGS ioctl. > That seems workable and it would also make setting > of PROJINHERIT flag fs agnostic. Only we would have to create some generic > flags namespace and merge into that ext4 flags and have a translation > function for the old ext4 flags. The XFS_XFLAGS_* are already filesystem agnostic - they are flags that are only used for interfacing with userspace and hence only exist at the ioctl copy in/out layer..... > Also I'm afraid we may quickly run out of > 32 available flags in xflags so we'd need to extend that. But all this > seems to be doable. The struct fsxattr was designed to be extensible - it has unused padding and enough space in the flags field to allow us to conditionally use that padding.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Sep 25 03:13:14 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=2.0 required=5.0 tests=DEAR_SOMETHING autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7DE7E7F8B for ; Thu, 25 Sep 2014 03:13:14 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 4FCEF8F8087 for ; Thu, 25 Sep 2014 01:13:10 -0700 (PDT) X-ASG-Debug-ID: 1411632788-04bdf003a019f3a0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id N5mxBqR6WoBN4liM for ; Thu, 25 Sep 2014 01:13:08 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AiUzACHOI1R5LHim/2dsb2JhbABGGoMOU1eCMYs4qDMGlDiBW4VrBAIBgQYXAXqEAwEBAQMBOhwjBQsIAw4KCSUPBSUDIROINgcONsI9GBiFeokfJEkHhEsFlhiHCJVVgh+BVSsvAYEGgUMBAQE Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail07.adl2.internode.on.net with ESMTP; 25 Sep 2014 17:43:07 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XX4AY-0006Ap-Hr; Thu, 25 Sep 2014 18:12:54 +1000 Date: Thu, 25 Sep 2014 18:12:54 +1000 From: Dave Chinner To: Simon Dray Cc: "xfs@oss.sgi.com" Subject: Re: XFS issue xfs goes offline with various messages drive not recoverable without reboot Message-ID: <20140925081254.GH4758@dastard> X-ASG-Orig-Subj: Re: XFS issue xfs goes offline with various messages drive not recoverable without reboot References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1411632788 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9854 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 On Thu, Sep 25, 2014 at 07:30:23AM +0000, Simon Dray wrote: > Dear Sirs > > I wonder if you can help with an issue we see re-occuring on a regular basis with one of our HP systems which uses a HP 420 Raid controller tl;dr: more information is needed about your system to make sense of the problem. See here: http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F > Action taken > > We first saw the following: > [root@ content]# ls > ls: cannot open directory .: Input/output error The filesystem has shut down due to a fatal error. > We try to run: > [root@ /]# xfs_check /dev/md0 > xfs_check: /dev/md0 contains a mounted and writable filesystem > fatal error -- couldn't initialize XFS library FYI, xfs_check was deprecated a quite a while ago. It no longer exists in current releases.... > We also tried to umount the /dev/md0 before runniing xfs_check but no luck. We received the error: device is in use That can happen if the storage has gone bad and IOs have been lost. > We use xfs for one of our large raid file systems and we are seeing the xfs filesystem go offline with the following messages in dmesg > > messages-20140921:Sep 18 23:01: kernel: XFS (md0): Device md0: metadata write error block 0x5e28623d8 What messages occurred before this? Something reported an IO error back to XFS, and so that something should have logged an error message... > messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): I/O error occurred: meta-data dev md0 block 0x445cccc40 ("xlog_iodone") error 5 buf count 32768 > messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): xfs_do_force_shutdown(0x2) called from line 891 of file fs/xfs/xfs_log.c. Return address = 0xffffffffa2c428dc > messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): Log I/O Error Detected. Shutting down filesystem > messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): Please umount the filesystem and rectify the problem(s) > messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): xfs_imap_to_bp: xfs_trans_read_buf() returned error 5. > messages-20140921:Sep 18 23:01:04 kernel: XFS (md0): xfs_iunlink_remove: xfs_itobp() returned error 5. Yup, kernel code is at least 2 years old, because we removed xfs_itobp in mid 2012... ;) > In all occurrences the only way to recover from this is to reboot > the system and allow xfs_repair to run during boot this clears the > issue until next time > > We have checked the RAID health and nothing seems to be amiss, if > you could help with this it would be much appreciated That's par for the course when hardware raid goes AWOL - they almost never report that they had a problem when they hang (e.g. firmware crashes so can't log an event to say it crashed). But really, more information about your system and more complete logs are needed to be able to make any progress triaging the problem. Cheers, Dave. -- Dave Chinner david@fromorbit.com From pkuelelixi@gmail.com Thu Sep 25 06:35:28 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 5706A7F8D for ; Thu, 25 Sep 2014 06:35:28 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 375CF8F8035 for ; Thu, 25 Sep 2014 04:35:25 -0700 (PDT) X-ASG-Debug-ID: 1411644923-04cb6c50e41f0770001-NocioJ Received: from mail-pa0-f52.google.com (mail-pa0-f52.google.com [209.85.220.52]) by cuda.sgi.com with ESMTP id 42VXxpa9rdDdU2bB (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Thu, 25 Sep 2014 04:35:24 -0700 (PDT) X-Barracuda-Envelope-From: pkuelelixi@gmail.com X-Barracuda-RBL-Trusted-Forwarder: 209.85.220.52 Received: by mail-pa0-f52.google.com with SMTP id hz1so10687822pad.25 for ; Thu, 25 Sep 2014 04:35:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=content-type:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=2M4RF1XEwbVv2L0qqUeqz5djhkOaI7RuyocaV3x4ngM=; b=zkwoi3aGJbQGyDKSctwrIq6zdW//PV+PqQp701RrVX00QC5+06O7wlM6QnDBo9W1+s MOWBzIpLeRolIE9INjtdcKgRluCIzrrQjPEJP5FzyLfcLkXPZOSC0dd6RKVfjuUKdtH4 u24G5d8JWpMrELYja8Ooxi6+BCDDZfwax9A/MPvX4nTizBWMpEGyzWiV505URcYr9wIc O7KnamZBrOT3ZieDOwYSSxBia8hobMq+hTDAQYfG8TDC6AX5dO6E4TcJ0D8rrMGpOT7f J+t4Z+sapRyRBcpmvKq60Z5VwYf5g41EbaT+ujZ1lmMKTEDYrVupTdAmOQ5d7LJIx3Xy EuIg== X-Barracuda-BBL-IP: nil X-Received: by 10.68.178.36 with SMTP id cv4mr18105196pbc.136.1411644923464; Thu, 25 Sep 2014 04:35:23 -0700 (PDT) Received: from [192.168.3.109] ([117.45.255.136]) by mx.google.com with ESMTPSA id qo4sm1491487pdb.37.2014.09.25.04.35.15 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 25 Sep 2014 04:35:22 -0700 (PDT) Content-Type: text/plain; charset=GB2312 Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) Subject: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project From: lixi X-ASG-Orig-Subj: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project In-Reply-To: <20140925075912.GG4758@dastard> Date: Thu, 25 Sep 2014 19:34:38 +0800 Cc: Jan Kara , Christoph Hellwig , Andreas Dilger , linux-api@vger.kernel.org, xfs@oss.sgi.com, Dmitry Monakhov , viro@zeniv.linux.org.uk, linux-fsdevel@vger.kernel.org, Theodore Ts'o , Ext4 Developers List Content-Transfer-Encoding: quoted-printable Message-Id: References: <1411567470-31799-1-git-send-email-lixi@ddn.com> <1411567470-31799-5-git-send-email-lixi@ddn.com> <20140924162507.GC27000@quack.suse.cz> <20140924162634.GA16886@infradead.org> <20140924170105.GE27000@quack.suse.cz> <20140925075912.GG4758@dastard> To: Dave Chinner X-Mailer: Apple Mail (2.1878.6) X-Barracuda-Connect: mail-pa0-f52.google.com[209.85.220.52] X-Barracuda-Start-Time: 1411644923 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9860 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 =D4=DA 2014=C4=EA9=D4=C225=C8=D5=A3=AC=CF=C2=CE=E73:59=A3=ACDave Chinner = =D0=B4=B5=C0=A3=BA > On Wed, Sep 24, 2014 at 07:01:05PM +0200, Jan Kara wrote: >> On Wed 24-09-14 09:26:34, Christoph Hellwig wrote: >>> On Wed, Sep 24, 2014 at 06:25:07PM +0200, Jan Kara wrote: >>>> On Wed 24-09-14 22:04:30, Li Xi wrote: >>>>> This patch adds ioctl interface for setting/getting project of = ext4. >>>> The patch looks good to me. I was just wondering whether it won't = be >>>> useful to add an ioctl() which isn't ext4 specific. We could just = extend >>>> ->setattr() to allow setting of project ID (most filesystems would = just >>>> return -EOPNOTSUPP but ext4 and xfs could do the right thing) and = then call >>>> ->setattr from the generic ioctl. That way userspace won't have to = care >>>> about filesystem type when setting project ID... What do others = think? >>>=20 >>> Absolutely. In general I also wonder why this patch doesn't = implement >>> the full XFS API. Maybe there is a reason it was considered and >>> rejected, but it would be helpful to document why. >> Do you mean full get/setfsxattr API? >=20 > That's a good start. >=20 > The bigger issue in my mind is that we already have a fully featured > quota API that supports project quotas and userspace tools available > that manipulate it. xfstests already uses those tools and API > for testing project quotas. >=20 > This whole patchset reinvents all the quota APIs, and will require > adding support in userspace, and hence require re-inventing all the > test infrastructure we already have because it won't be compatible > with the existing project quota test code. >=20 >> That basically contains project ID, >> flags (those that are currently get/set with = FS_IOC_GETFLAGS/SETFLAGS), and >> extent size hint right? >=20 > It's a different set of flag definitions. We translate the interface > XFS_XFLAG_* values to/from the inode on-disk XFS_DIFLAG_* inode = values, just > like we translate the VFS FS_*_FL flags that get passed through the > FS_IOC_GETFLAGS/SETFLAGS ioctl. >=20 >> That seems workable and it would also make setting >> of PROJINHERIT flag fs agnostic. Only we would have to create some = generic >> flags namespace and merge into that ext4 flags and have a translation >> function for the old ext4 flags. >=20 > The XFS_XFLAGS_* are already filesystem agnostic - they are flags > that are only used for interfacing with userspace and hence only > exist at the ioctl copy in/out layer..... >=20 >> Also I'm afraid we may quickly run out of >> 32 available flags in xflags so we'd need to extend that. But all = this >> seems to be doable. >=20 > The struct fsxattr was designed to be extensible - it has unused > padding and enough space in the flags field to allow us to > conditionally use that padding=A1=AD. Hi Dave, I was mostly working on the semantics of inherit flag on these patches. = And I didn=A1=AFt realized that the interface differences would bother you = so much. Sorry for that. I agree that we should choose a good interface. It would be good that it = is general so that it works well for all file systems. I agree that adding = an ext4 specific ioctl() is far from the best choice. I am willing to = change it to any general interface. A general ioctl() sounds good to me. Extend = setattr() and getattr() for project ID sounds even better, since project ID looks = like UID/GID. And general xattr name is another choice. But it is might be a = little bit confusing if we use xattr actually, since we are not saving project = ID as extended attribute on Ext4. Any choice is fine with me, as long as the implementation won't introduce nasty codes or inconsistent design. However, the problem is, I do not quite understand why we should keep the interface exactly the same with XFS. It would be good if we can. But as far as I can see, it seems hard. XFS uses a lot interfaces which are not so standard and used by other file systems. For example, struct fsxattr is not used by other file systems at all except XFS. I am not = sure why we should introduce this into Ext4 if there are a lot of other = better ways. I would be happy to change to XFS interfaces, if it is general. However, I don=A1=AFt think it is general enough. I know xfstest is using the existing project quota interfaces of XFS. = And maybe there are some applications which are using them too. But keeping the interfaces exactly the same with XFS would cost so much effort that I=A1=AFd like to get enough reasons before start working on = it. Is it really necessary? I am not so sure. It is so easy to change user space applications comparing to changing a weird interfaces. For example, I think it won=A1=AFt cost even more than a day to add xfstest support for new Ext4 project quota. And since project quota is far from a widely used feature, I don=A1=AFt think there is much compatibility = problems for existing applications. And If the new project interface are general enough, there won=A1=AFt be any compatibility problems for new = applications at all. I might missed something important. So please let me know if you have any advices. Regards, - Li Xi= From david@fromorbit.com Thu Sep 25 07:02:03 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B592E7F90 for ; Thu, 25 Sep 2014 07:02:03 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 51D49AC003 for ; Thu, 25 Sep 2014 05:01:59 -0700 (PDT) X-ASG-Debug-ID: 1411646517-04bdf003a2221730001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id GpTmTx7JAKNmFV8Z for ; Thu, 25 Sep 2014 05:01:58 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArZXAFEDJFR5LHimPGdsb2JhbABggw6BKoIxhQeucQEBAQEBAQaWE4VrAgIBAQKBCBcBBgEBAQE4OYQDAQEBAwE6HCMFCwgDDgoJJQ8FJQMHGhOINgfCahgYhXqKDAeDLoEdBZ0imUwrL4JKAQEB Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 25 Sep 2014 21:31:56 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XX7kB-0006iD-6b; Thu, 25 Sep 2014 22:01:55 +1000 Date: Thu, 25 Sep 2014 22:01:55 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH] xfs: flush the range before zero range conversion Message-ID: <20140925120155.GF4945@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs: flush the range before zero range conversion References: <1411585591-55975-1-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411585591-55975-1-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411646517 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9861 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Sep 24, 2014 at 03:06:31PM -0400, Brian Foster wrote: > XFS currently discards delalloc blocks within the target range of a zero > range request. Unaligned start and end offsets are zeroed through the > page cache and the internal, aligned blocks are converted to unwritten > extents. > > If EOF is page aligned and covered by a delayed allocation extent. The > inode size is not updated until I/O completion. If a zero range request > discards a delalloc range that covers page aligned EOF as such, the > inode size update never occurs. For example: > > $ rm -f /mnt/file > $ xfs_io -fc "pwrite 0 64k" -c "zero 60k 4k" /mnt/file > $ stat -c "%s" /mnt/file > 65536 > $ umount /mnt > $ mount /mnt > $ stat -c "%s" /mnt/file > 61440 > > Update xfs_zero_file_space() to flush the range rather than discard > delalloc blocks to ensure that inode size updates occur appropriately. > > Signed-off-by: Brian Foster > --- > > I suppose we could be more clever here and only flush the range in this > particular scenario, but I'm not sure if there's a major benefit there. Punching the delalloc range rather than flushing the file was done intentionally - this was added primarily for speeding up the zeroing of large VM image files. i.e. it's an extent manipulation operation rather than a data Io operation. Flushing the file defeats the primary reason for the operation existing. We can easily detect this situation and just zero the last block in the file directly after punching out all the delalloc state. This should happen anyway when the region to be zeroed is not page aligned.... > FWIW, this implicitly addresses the indlen==0 assert failures described > in the xfs_bmap_del_extent() rfc, but doesn't necessarily mean we > shouldn't fix that code IMO. We punch delalloc extents elsewhere, so that still needs fixing. Cheers, Dave. -- Dave Chinner david@fromorbit.com From dave@fromorbit.com Thu Sep 25 07:20:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id F2B6E7F92 for ; Thu, 25 Sep 2014 07:20:44 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id D29848F8037 for ; Thu, 25 Sep 2014 05:20:44 -0700 (PDT) X-ASG-Debug-ID: 1411647639-04cb6c50e71fae50001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id AHQe1sm7qly439iA for ; Thu, 25 Sep 2014 05:20:39 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AoEXAP8HJFR5LHimPGdsb2JhbABggw6BKoc4rnABAQEBAQEGnQ4XAQYBAQEBODmEBAEFJy8zCBgxOQMHFBmIPcMLhhKOXgWpXY0RKy+CSgEBAQ Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 25 Sep 2014 21:50:38 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XX82H-0006kr-9c for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:20:37 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XX82H-0007Mc-8P for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:20:37 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 1/3] xfs: consider freeze levels in xfs_fs_writable() Date: Thu, 25 Sep 2014 22:20:30 +1000 X-ASG-Orig-Subj: [PATCH 1/3] xfs: consider freeze levels in xfs_fs_writable() Message-Id: <1411647632-28240-2-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411647632-28240-1-git-send-email-david@fromorbit.com> References: <1411647632-28240-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411647639 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9861 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner The filesystem is still writable in certain circumstances while a freeze is in progress but xfs_fs_writable() does not reflect that. In some code we want to check whether the fs is writable, and the context we can be called under varies because the code call be called from under both unmount and freeze contexts. Hence allow the caller to pass in the freeze level it is allowed to write at, thereby ensuring that we can use the general writable function in more places. Note: Brian Foster also wrote an almost identical patch at the same time, so some credit is due to him for the existence of this commit. Signed-off-by: Dave Chinner --- fs/xfs/xfs_log.c | 2 +- fs/xfs/xfs_mount.c | 21 +++++++++++++++------ fs/xfs/xfs_mount.h | 2 +- 3 files changed, 17 insertions(+), 8 deletions(-) diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index ca4fd5b..7ada70c 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -1031,7 +1031,7 @@ xfs_log_need_covered(xfs_mount_t *mp) struct xlog *log = mp->m_log; int needed = 0; - if (!xfs_fs_writable(mp)) + if (!xfs_fs_writable(mp, SB_UNFROZEN)) return 0; if (!xlog_cil_empty(log)) diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index d36bdbc..9073895 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -607,7 +607,7 @@ xfs_mount_reset_sbqflags( * If the fs is readonly, let the incore superblock run * with quotas off but don't flush the update out to disk */ - if (mp->m_flags & XFS_MOUNT_RDONLY) + if (!xfs_fs_writable(mp, SB_UNFROZEN)) return 0; tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE); @@ -1077,11 +1077,16 @@ xfs_unmountfs( xfs_sysfs_del(&mp->m_kobj); } -int -xfs_fs_writable(xfs_mount_t *mp) +bool +xfs_fs_writable(xfs_mount_t *mp, int frozen_state) { - return !(mp->m_super->s_writers.frozen || XFS_FORCED_SHUTDOWN(mp) || - (mp->m_flags & XFS_MOUNT_RDONLY)); + if (mp->m_super->s_writers.frozen > frozen_state) + return false; + if (XFS_FORCED_SHUTDOWN(mp)) + return false; + if (mp->m_flags & XFS_MOUNT_RDONLY) + return false; + return true; } /* @@ -1099,7 +1104,11 @@ xfs_log_sbcount(xfs_mount_t *mp) xfs_trans_t *tp; int error; - if (!xfs_fs_writable(mp)) + /* + * We can be called during the fs freeze process, and we need to be + * able to write the superblock in that case. + */ + if (!xfs_fs_writable(mp, SB_FREEZE_FS)) return 0; xfs_icsb_sync_counters(mp, 0); diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index b0447c8..30f85ca 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -384,7 +384,7 @@ extern int xfs_mount_log_sb(xfs_mount_t *, __int64_t); extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int); extern int xfs_readsb(xfs_mount_t *, int); extern void xfs_freesb(xfs_mount_t *); -extern int xfs_fs_writable(xfs_mount_t *); +extern bool xfs_fs_writable(struct xfs_mount *, int); extern int xfs_sb_validate_fsb_count(struct xfs_sb *, __uint64_t); extern int xfs_dev_is_read_only(struct xfs_mount *, char *); -- 2.0.0 From dave@fromorbit.com Thu Sep 25 07:20:47 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 618037F9E for ; Thu, 25 Sep 2014 07:20:47 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id E5BE4AC007 for ; Thu, 25 Sep 2014 05:20:46 -0700 (PDT) X-ASG-Debug-ID: 1411647639-04cb6c50e71fae50002-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id aWsZz8tA2rFojMh5 for ; Thu, 25 Sep 2014 05:20:44 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AmSBAP8HJFR5LHimPGdsb2JhbABggw5TV41kqCwCCgwBAQEBAQEGcgGEao5ZiFgXAQYBAQEBODmEYDuBAgMHiGoOnQ+lboYSh3mCMIQ1BZYaniYBgi0rLwGCSQEBAQ Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 25 Sep 2014 21:50:38 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XX82H-0006kq-8y for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:20:37 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XX82H-0007MZ-7b for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:20:37 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 0/3 v2] xfs: superblock logging rework Date: Thu, 25 Sep 2014 22:20:29 +1000 X-ASG-Orig-Subj: [PATCH 0/3 v2] xfs: superblock logging rework Message-Id: <1411647632-28240-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411647643 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA717 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9861 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_SA717 Custom Rule BSF_SC0_SA717 Hi folks, This is an updated version of the superblock logging simplification patch series I first sent here: http://oss.sgi.com/archives/xfs/2014-07/msg00465.html Version 2: - added initial patch to sanitse xfs_fs_writeable - updated comments to describe caller requirements for xfs_sync_sb() -Dave. From dave@fromorbit.com Thu Sep 25 07:20:48 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 96AA77FA1 for ; Thu, 25 Sep 2014 07:20:48 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 8428D8F8035 for ; Thu, 25 Sep 2014 05:20:48 -0700 (PDT) X-ASG-Debug-ID: 1411647644-04cb6c50e61fae60001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id GFPDpVHeIX05eISY for ; Thu, 25 Sep 2014 05:20:45 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AoYXAP8HJFR5LHimPGdsb2JhbABggw6BKoc4rnABAQEBAQEGnASBChcBBgEBAQE4OYQEAQUaDS8zCBgxOQMHFBmIPcMLhhKJP0KEXQWGJrBIKy+BB4FDAQEB Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 25 Sep 2014 21:50:38 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XX82H-0006ks-AC for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:20:37 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XX82H-0007Mh-94 for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:20:37 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 2/3] xfs: remove bitfield based superblock updates Date: Thu, 25 Sep 2014 22:20:31 +1000 X-ASG-Orig-Subj: [PATCH 2/3] xfs: remove bitfield based superblock updates Message-Id: <1411647632-28240-3-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411647632-28240-1-git-send-email-david@fromorbit.com> References: <1411647632-28240-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411647644 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9861 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner When we log changes to the superblock, we first have to write them to the on-disk buffer, and then log that. Right now we have a complex bitfield based arrangement to only write the modified field to the buffer before we log it. This used to be necessary as a performance optimisation because we logged the superblock buffer in every extent or inode allocation or freeing, and so performance was extremely important. We haven't done this for years, however, ever since the lazy superblock counters pulled the superblock logging out of the transaction commit fast path. Hence we have a bunch of complexity that is not necessary that makes writing the in-core superblock to disk much more complex than it needs to be. We only need to log the superblock now during management operations (e.g. during mount, unmount or quota control operations) so it is not a performance critical path anymore. As such, remove the complex field based logging mechanism and replace it with a simple conversion function similar to what we use for all other on-disk structures. This means we always log the entirity of the superblock, but again because we rarely modify the superblock this is not an issue for log bandwidth or CPU time. Indeed, if we do log the superblock frequently, delayed logging will minimise the impact of this overhead. Signed-off-by: Dave Chinner Reviewed-by: Brian Foster --- fs/xfs/libxfs/xfs_attr_leaf.c | 2 +- fs/xfs/libxfs/xfs_bmap.c | 14 +-- fs/xfs/libxfs/xfs_sb.c | 287 +++++++++++++++--------------------------- fs/xfs/libxfs/xfs_sb.h | 10 +- fs/xfs/xfs_fsops.c | 6 +- fs/xfs/xfs_mount.c | 18 +-- fs/xfs/xfs_mount.h | 2 +- fs/xfs/xfs_qm.c | 26 +--- fs/xfs/xfs_qm.h | 2 +- fs/xfs/xfs_qm_syscalls.c | 13 +- fs/xfs/xfs_super.c | 2 +- 11 files changed, 130 insertions(+), 252 deletions(-) diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c index b1f73db..f4a47a7 100644 --- a/fs/xfs/libxfs/xfs_attr_leaf.c +++ b/fs/xfs/libxfs/xfs_attr_leaf.c @@ -405,7 +405,7 @@ xfs_sbversion_add_attr2(xfs_mount_t *mp, xfs_trans_t *tp) if (!xfs_sb_version_hasattr2(&mp->m_sb)) { xfs_sb_version_addattr2(&mp->m_sb); spin_unlock(&mp->m_sb_lock); - xfs_mod_sb(tp, XFS_SB_VERSIONNUM | XFS_SB_FEATURES2); + xfs_mod_sb(tp); } else spin_unlock(&mp->m_sb_lock); } diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index d85ccc3..e33a780 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -1224,22 +1224,20 @@ xfs_bmap_add_attrfork( goto bmap_cancel; if (!xfs_sb_version_hasattr(&mp->m_sb) || (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2)) { - __int64_t sbfields = 0; + bool mod_sb = false; spin_lock(&mp->m_sb_lock); if (!xfs_sb_version_hasattr(&mp->m_sb)) { xfs_sb_version_addattr(&mp->m_sb); - sbfields |= XFS_SB_VERSIONNUM; + mod_sb = true; } if (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2) { xfs_sb_version_addattr2(&mp->m_sb); - sbfields |= (XFS_SB_VERSIONNUM | XFS_SB_FEATURES2); + mod_sb = true; } - if (sbfields) { - spin_unlock(&mp->m_sb_lock); - xfs_mod_sb(tp, sbfields); - } else - spin_unlock(&mp->m_sb_lock); + spin_unlock(&mp->m_sb_lock); + if (mod_sb) + xfs_mod_sb(tp); } error = xfs_bmap_finish(&tp, &flist, &committed); diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c index 8426e5e..2803325 100644 --- a/fs/xfs/libxfs/xfs_sb.c +++ b/fs/xfs/libxfs/xfs_sb.c @@ -42,69 +42,6 @@ * Physical superblock buffer manipulations. Shared with libxfs in userspace. */ -static const struct { - short offset; - short type; /* 0 = integer - * 1 = binary / string (no translation) - */ -} xfs_sb_info[] = { - { offsetof(xfs_sb_t, sb_magicnum), 0 }, - { offsetof(xfs_sb_t, sb_blocksize), 0 }, - { offsetof(xfs_sb_t, sb_dblocks), 0 }, - { offsetof(xfs_sb_t, sb_rblocks), 0 }, - { offsetof(xfs_sb_t, sb_rextents), 0 }, - { offsetof(xfs_sb_t, sb_uuid), 1 }, - { offsetof(xfs_sb_t, sb_logstart), 0 }, - { offsetof(xfs_sb_t, sb_rootino), 0 }, - { offsetof(xfs_sb_t, sb_rbmino), 0 }, - { offsetof(xfs_sb_t, sb_rsumino), 0 }, - { offsetof(xfs_sb_t, sb_rextsize), 0 }, - { offsetof(xfs_sb_t, sb_agblocks), 0 }, - { offsetof(xfs_sb_t, sb_agcount), 0 }, - { offsetof(xfs_sb_t, sb_rbmblocks), 0 }, - { offsetof(xfs_sb_t, sb_logblocks), 0 }, - { offsetof(xfs_sb_t, sb_versionnum), 0 }, - { offsetof(xfs_sb_t, sb_sectsize), 0 }, - { offsetof(xfs_sb_t, sb_inodesize), 0 }, - { offsetof(xfs_sb_t, sb_inopblock), 0 }, - { offsetof(xfs_sb_t, sb_fname[0]), 1 }, - { offsetof(xfs_sb_t, sb_blocklog), 0 }, - { offsetof(xfs_sb_t, sb_sectlog), 0 }, - { offsetof(xfs_sb_t, sb_inodelog), 0 }, - { offsetof(xfs_sb_t, sb_inopblog), 0 }, - { offsetof(xfs_sb_t, sb_agblklog), 0 }, - { offsetof(xfs_sb_t, sb_rextslog), 0 }, - { offsetof(xfs_sb_t, sb_inprogress), 0 }, - { offsetof(xfs_sb_t, sb_imax_pct), 0 }, - { offsetof(xfs_sb_t, sb_icount), 0 }, - { offsetof(xfs_sb_t, sb_ifree), 0 }, - { offsetof(xfs_sb_t, sb_fdblocks), 0 }, - { offsetof(xfs_sb_t, sb_frextents), 0 }, - { offsetof(xfs_sb_t, sb_uquotino), 0 }, - { offsetof(xfs_sb_t, sb_gquotino), 0 }, - { offsetof(xfs_sb_t, sb_qflags), 0 }, - { offsetof(xfs_sb_t, sb_flags), 0 }, - { offsetof(xfs_sb_t, sb_shared_vn), 0 }, - { offsetof(xfs_sb_t, sb_inoalignmt), 0 }, - { offsetof(xfs_sb_t, sb_unit), 0 }, - { offsetof(xfs_sb_t, sb_width), 0 }, - { offsetof(xfs_sb_t, sb_dirblklog), 0 }, - { offsetof(xfs_sb_t, sb_logsectlog), 0 }, - { offsetof(xfs_sb_t, sb_logsectsize), 0 }, - { offsetof(xfs_sb_t, sb_logsunit), 0 }, - { offsetof(xfs_sb_t, sb_features2), 0 }, - { offsetof(xfs_sb_t, sb_bad_features2), 0 }, - { offsetof(xfs_sb_t, sb_features_compat), 0 }, - { offsetof(xfs_sb_t, sb_features_ro_compat), 0 }, - { offsetof(xfs_sb_t, sb_features_incompat), 0 }, - { offsetof(xfs_sb_t, sb_features_log_incompat), 0 }, - { offsetof(xfs_sb_t, sb_crc), 0 }, - { offsetof(xfs_sb_t, sb_pad), 0 }, - { offsetof(xfs_sb_t, sb_pquotino), 0 }, - { offsetof(xfs_sb_t, sb_lsn), 0 }, - { sizeof(xfs_sb_t), 0 } -}; - /* * Reference counting access wrappers to the perag structures. * Because we never free per-ag structures, the only thing we @@ -461,125 +398,119 @@ xfs_sb_from_disk( __xfs_sb_from_disk(to, from, true); } -static inline void +static void xfs_sb_quota_to_disk( - xfs_dsb_t *to, - xfs_sb_t *from, - __int64_t *fields) + struct xfs_dsb *to, + struct xfs_sb *from) { __uint16_t qflags = from->sb_qflags; + to->sb_uquotino = cpu_to_be64(from->sb_uquotino); + if (xfs_sb_version_has_pquotino(from)) { + to->sb_qflags = be16_to_cpu(from->sb_qflags); + to->sb_gquotino = cpu_to_be64(from->sb_gquotino); + to->sb_pquotino = cpu_to_be64(from->sb_pquotino); + return; + } + /* - * We need to do these manipilations only if we are working - * with an older version of on-disk superblock. + * The in-core version of sb_qflags do not have XFS_OQUOTA_* + * flags, whereas the on-disk version does. So, convert incore + * XFS_{PG}QUOTA_* flags to on-disk XFS_OQUOTA_* flags. */ - if (xfs_sb_version_has_pquotino(from)) - return; + qflags &= ~(XFS_PQUOTA_ENFD | XFS_PQUOTA_CHKD | + XFS_GQUOTA_ENFD | XFS_GQUOTA_CHKD); - if (*fields & XFS_SB_QFLAGS) { - /* - * The in-core version of sb_qflags do not have - * XFS_OQUOTA_* flags, whereas the on-disk version - * does. So, convert incore XFS_{PG}QUOTA_* flags - * to on-disk XFS_OQUOTA_* flags. - */ - qflags &= ~(XFS_PQUOTA_ENFD | XFS_PQUOTA_CHKD | - XFS_GQUOTA_ENFD | XFS_GQUOTA_CHKD); - - if (from->sb_qflags & - (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD)) - qflags |= XFS_OQUOTA_ENFD; - if (from->sb_qflags & - (XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD)) - qflags |= XFS_OQUOTA_CHKD; - to->sb_qflags = cpu_to_be16(qflags); - *fields &= ~XFS_SB_QFLAGS; - } + if (from->sb_qflags & + (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD)) + qflags |= XFS_OQUOTA_ENFD; + if (from->sb_qflags & + (XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD)) + qflags |= XFS_OQUOTA_CHKD; + to->sb_qflags = cpu_to_be16(qflags); /* - * GQUOTINO and PQUOTINO cannot be used together in versions of - * superblock that do not have pquotino. from->sb_flags tells us which - * quota is active and should be copied to disk. If neither are active, - * make sure we write NULLFSINO to the sb_gquotino field as a quota - * inode value of "0" is invalid when the XFS_SB_VERSION_QUOTA feature - * bit is set. + * GQUOTINO and PQUOTINO cannot be used together in versions + * of superblock that do not have pquotino. from->sb_flags + * tells us which quota is active and should be copied to + * disk. If neither are active, we should NULL the inode. * - * Note that we don't need to handle the sb_uquotino or sb_pquotino here - * as they do not require any translation. Hence the main sb field loop - * will write them appropriately from the in-core superblock. + * In all cases, the separate pquotino must remain 0 because it + * it beyond the "end" of the valid non-pquotino superblock. */ - if ((*fields & XFS_SB_GQUOTINO) && - (from->sb_qflags & XFS_GQUOTA_ACCT)) + if (from->sb_qflags & XFS_GQUOTA_ACCT) to->sb_gquotino = cpu_to_be64(from->sb_gquotino); - else if ((*fields & XFS_SB_PQUOTINO) && - (from->sb_qflags & XFS_PQUOTA_ACCT)) + else if (from->sb_qflags & XFS_PQUOTA_ACCT) to->sb_gquotino = cpu_to_be64(from->sb_pquotino); - else { - /* - * We can't rely on just the fields being logged to tell us - * that it is safe to write NULLFSINO - we should only do that - * if quotas are not actually enabled. Hence only write - * NULLFSINO if both in-core quota inodes are NULL. - */ - if (from->sb_gquotino == NULLFSINO && - from->sb_pquotino == NULLFSINO) - to->sb_gquotino = cpu_to_be64(NULLFSINO); - } + else + to->sb_gquotino = cpu_to_be64(NULLFSINO); - *fields &= ~(XFS_SB_PQUOTINO | XFS_SB_GQUOTINO); + to->sb_pquotino = 0; } -/* - * Copy in core superblock to ondisk one. - * - * The fields argument is mask of superblock fields to copy. - */ void xfs_sb_to_disk( - xfs_dsb_t *to, - xfs_sb_t *from, - __int64_t fields) + struct xfs_dsb *to, + struct xfs_sb *from) { - xfs_caddr_t to_ptr = (xfs_caddr_t)to; - xfs_caddr_t from_ptr = (xfs_caddr_t)from; - xfs_sb_field_t f; - int first; - int size; - - ASSERT(fields); - if (!fields) - return; + xfs_sb_quota_to_disk(to, from); - xfs_sb_quota_to_disk(to, from, &fields); - while (fields) { - f = (xfs_sb_field_t)xfs_lowbit64((__uint64_t)fields); - first = xfs_sb_info[f].offset; - size = xfs_sb_info[f + 1].offset - first; - - ASSERT(xfs_sb_info[f].type == 0 || xfs_sb_info[f].type == 1); - - if (size == 1 || xfs_sb_info[f].type == 1) { - memcpy(to_ptr + first, from_ptr + first, size); - } else { - switch (size) { - case 2: - *(__be16 *)(to_ptr + first) = - cpu_to_be16(*(__u16 *)(from_ptr + first)); - break; - case 4: - *(__be32 *)(to_ptr + first) = - cpu_to_be32(*(__u32 *)(from_ptr + first)); - break; - case 8: - *(__be64 *)(to_ptr + first) = - cpu_to_be64(*(__u64 *)(from_ptr + first)); - break; - default: - ASSERT(0); - } - } + to->sb_magicnum = cpu_to_be32(from->sb_magicnum); + to->sb_blocksize = cpu_to_be32(from->sb_blocksize); + to->sb_dblocks = cpu_to_be64(from->sb_dblocks); + to->sb_rblocks = cpu_to_be64(from->sb_rblocks); + to->sb_rextents = cpu_to_be64(from->sb_rextents); + memcpy(&to->sb_uuid, &from->sb_uuid, sizeof(to->sb_uuid)); + to->sb_logstart = cpu_to_be64(from->sb_logstart); + to->sb_rootino = cpu_to_be64(from->sb_rootino); + to->sb_rbmino = cpu_to_be64(from->sb_rbmino); + to->sb_rsumino = cpu_to_be64(from->sb_rsumino); + to->sb_rextsize = cpu_to_be32(from->sb_rextsize); + to->sb_agblocks = cpu_to_be32(from->sb_agblocks); + to->sb_agcount = cpu_to_be32(from->sb_agcount); + to->sb_rbmblocks = cpu_to_be32(from->sb_rbmblocks); + to->sb_logblocks = cpu_to_be32(from->sb_logblocks); + to->sb_versionnum = cpu_to_be16(from->sb_versionnum); + to->sb_sectsize = cpu_to_be16(from->sb_sectsize); + to->sb_inodesize = cpu_to_be16(from->sb_inodesize); + to->sb_inopblock = cpu_to_be16(from->sb_inopblock); + memcpy(&to->sb_fname, &from->sb_fname, sizeof(to->sb_fname)); + to->sb_blocklog = from->sb_blocklog; + to->sb_sectlog = from->sb_sectlog; + to->sb_inodelog = from->sb_inodelog; + to->sb_inopblog = from->sb_inopblog; + to->sb_agblklog = from->sb_agblklog; + to->sb_rextslog = from->sb_rextslog; + to->sb_inprogress = from->sb_inprogress; + to->sb_imax_pct = from->sb_imax_pct; + to->sb_icount = cpu_to_be64(from->sb_icount); + to->sb_ifree = cpu_to_be64(from->sb_ifree); + to->sb_fdblocks = cpu_to_be64(from->sb_fdblocks); + to->sb_frextents = cpu_to_be64(from->sb_frextents); - fields &= ~(1LL << f); + + to->sb_flags = from->sb_flags; + to->sb_shared_vn = from->sb_shared_vn; + to->sb_inoalignmt = cpu_to_be32(from->sb_inoalignmt); + to->sb_unit = cpu_to_be32(from->sb_unit); + to->sb_width = cpu_to_be32(from->sb_width); + to->sb_dirblklog = from->sb_dirblklog; + to->sb_logsectlog = from->sb_logsectlog; + to->sb_logsectsize = cpu_to_be16(from->sb_logsectsize); + to->sb_logsunit = cpu_to_be32(from->sb_logsunit); + to->sb_features2 = cpu_to_be32(from->sb_features2); + to->sb_bad_features2 = cpu_to_be32(from->sb_bad_features2); + + if (xfs_sb_version_hascrc(from)) { + to->sb_features_compat = cpu_to_be32(from->sb_features_compat); + to->sb_features_ro_compat = + cpu_to_be32(from->sb_features_ro_compat); + to->sb_features_incompat = + cpu_to_be32(from->sb_features_incompat); + to->sb_features_log_incompat = + cpu_to_be32(from->sb_features_log_incompat); + to->sb_pad = 0; + to->sb_lsn = cpu_to_be64(from->sb_lsn); } } @@ -820,35 +751,13 @@ xfs_initialize_perag_data( * access. */ void -xfs_mod_sb(xfs_trans_t *tp, __int64_t fields) +xfs_mod_sb( + struct xfs_trans *tp) { - xfs_buf_t *bp; - int first; - int last; - xfs_mount_t *mp; - xfs_sb_field_t f; - - ASSERT(fields); - if (!fields) - return; - mp = tp->t_mountp; - bp = xfs_trans_getsb(tp, mp, 0); - first = sizeof(xfs_sb_t); - last = 0; - - /* translate/copy */ - - xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb, fields); - - /* find modified range */ - f = (xfs_sb_field_t)xfs_highbit64((__uint64_t)fields); - ASSERT((1LL << f) & XFS_SB_MOD_BITS); - last = xfs_sb_info[f + 1].offset - 1; - - f = (xfs_sb_field_t)xfs_lowbit64((__uint64_t)fields); - ASSERT((1LL << f) & XFS_SB_MOD_BITS); - first = xfs_sb_info[f].offset; + struct xfs_mount *mp = tp->t_mountp; + struct xfs_buf *bp = xfs_trans_getsb(tp, mp, 0); + xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb); xfs_trans_buf_set_type(tp, bp, XFS_BLFT_SB_BUF); - xfs_trans_log_buf(tp, bp, first, last); + xfs_trans_log_buf(tp, bp, 0, sizeof(struct xfs_dsb)); } diff --git a/fs/xfs/libxfs/xfs_sb.h b/fs/xfs/libxfs/xfs_sb.h index 2e73970..c28b3c1 100644 --- a/fs/xfs/libxfs/xfs_sb.h +++ b/fs/xfs/libxfs/xfs_sb.h @@ -611,11 +611,11 @@ extern struct xfs_perag *xfs_perag_get_tag(struct xfs_mount *, xfs_agnumber_t, extern void xfs_perag_put(struct xfs_perag *pag); extern int xfs_initialize_perag_data(struct xfs_mount *, xfs_agnumber_t); -extern void xfs_sb_calc_crc(struct xfs_buf *); -extern void xfs_mod_sb(struct xfs_trans *, __int64_t); -extern void xfs_sb_mount_common(struct xfs_mount *, struct xfs_sb *); -extern void xfs_sb_from_disk(struct xfs_sb *, struct xfs_dsb *); -extern void xfs_sb_to_disk(struct xfs_dsb *, struct xfs_sb *, __int64_t); +extern void xfs_sb_calc_crc(struct xfs_buf *bp); +extern void xfs_mod_sb(struct xfs_trans *tp); +extern void xfs_sb_mount_common(struct xfs_mount *mp, struct xfs_sb *sbp); +extern void xfs_sb_from_disk(struct xfs_sb *to, struct xfs_dsb *from); +extern void xfs_sb_to_disk(struct xfs_dsb *to, struct xfs_sb *from); extern void xfs_sb_quota_from_disk(struct xfs_sb *sbp); #endif /* __XFS_SB_H__ */ diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index f91de1e..2c44e0b 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -548,7 +548,7 @@ xfs_growfs_data_private( saved_error = error; continue; } - xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb, XFS_SB_ALL_BITS); + xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb); error = xfs_bwrite(bp); xfs_buf_relse(bp); @@ -787,9 +787,7 @@ xfs_fs_log_dummy( xfs_trans_cancel(tp, 0); return error; } - - /* log the UUID because it is an unchanging field */ - xfs_mod_sb(tp, XFS_SB_UUID); + xfs_mod_sb(tp); xfs_trans_set_sync(tp); return xfs_trans_commit(tp, 0); } diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index 9073895..e555411 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -618,7 +618,7 @@ xfs_mount_reset_sbqflags( return error; } - xfs_mod_sb(tp, XFS_SB_QFLAGS); + xfs_mod_sb(tp); return xfs_trans_commit(tp, 0); } @@ -901,7 +901,7 @@ xfs_mountfs( * perform the update e.g. for the root filesystem. */ if (mp->m_update_flags && !(mp->m_flags & XFS_MOUNT_RDONLY)) { - error = xfs_mount_log_sb(mp, mp->m_update_flags); + error = xfs_mount_log_sb(mp); if (error) { xfs_warn(mp, "failed to write sb changes"); goto out_rtunmount; @@ -1127,7 +1127,7 @@ xfs_log_sbcount(xfs_mount_t *mp) return error; } - xfs_mod_sb(tp, XFS_SB_IFREE | XFS_SB_ICOUNT | XFS_SB_FDBLOCKS); + xfs_mod_sb(tp); xfs_trans_set_sync(tp); error = xfs_trans_commit(tp, 0); return error; @@ -1430,25 +1430,19 @@ xfs_freesb( */ int xfs_mount_log_sb( - xfs_mount_t *mp, - __int64_t fields) + xfs_mount_t *mp) { xfs_trans_t *tp; int error; - ASSERT(fields & (XFS_SB_UNIT | XFS_SB_WIDTH | XFS_SB_UUID | - XFS_SB_FEATURES2 | XFS_SB_BAD_FEATURES2 | - XFS_SB_VERSIONNUM)); - tp = xfs_trans_alloc(mp, XFS_TRANS_SB_UNIT); error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0); if (error) { xfs_trans_cancel(tp, 0); return error; } - xfs_mod_sb(tp, fields); - error = xfs_trans_commit(tp, 0); - return error; + xfs_mod_sb(tp); + return xfs_trans_commit(tp, 0); } /* diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index 30f85ca..01f66e5 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -380,7 +380,7 @@ extern void xfs_unmountfs(xfs_mount_t *); extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int); extern int xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *, uint, int); -extern int xfs_mount_log_sb(xfs_mount_t *, __int64_t); +extern int xfs_mount_log_sb(xfs_mount_t *); extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int); extern int xfs_readsb(xfs_mount_t *, int); extern void xfs_freesb(xfs_mount_t *); diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c index d68f230..1691edb 100644 --- a/fs/xfs/xfs_qm.c +++ b/fs/xfs/xfs_qm.c @@ -716,7 +716,6 @@ STATIC int xfs_qm_qino_alloc( xfs_mount_t *mp, xfs_inode_t **ip, - __int64_t sbfields, uint flags) { xfs_trans_t *tp; @@ -779,11 +778,6 @@ xfs_qm_qino_alloc( spin_lock(&mp->m_sb_lock); if (flags & XFS_QMOPT_SBVERSION) { ASSERT(!xfs_sb_version_hasquota(&mp->m_sb)); - ASSERT((sbfields & (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | - XFS_SB_GQUOTINO | XFS_SB_PQUOTINO | XFS_SB_QFLAGS)) == - (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | - XFS_SB_GQUOTINO | XFS_SB_PQUOTINO | - XFS_SB_QFLAGS)); xfs_sb_version_addquota(&mp->m_sb); mp->m_sb.sb_uquotino = NULLFSINO; @@ -800,7 +794,7 @@ xfs_qm_qino_alloc( else mp->m_sb.sb_pquotino = (*ip)->i_ino; spin_unlock(&mp->m_sb_lock); - xfs_mod_sb(tp, sbfields); + xfs_mod_sb(tp); if ((error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES))) { xfs_alert(mp, "%s failed (error %d)!", __func__, error); @@ -1453,7 +1447,7 @@ xfs_qm_mount_quotas( spin_unlock(&mp->m_sb_lock); if (sbf != (mp->m_qflags & XFS_MOUNT_QUOTA_ALL)) { - if (xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS)) { + if (xfs_qm_write_sb_changes(mp)) { /* * We could only have been turning quotas off. * We aren't in very good shape actually because @@ -1484,7 +1478,6 @@ xfs_qm_init_quotainos( struct xfs_inode *gip = NULL; struct xfs_inode *pip = NULL; int error; - __int64_t sbflags = 0; uint flags = 0; ASSERT(mp->m_quotainfo); @@ -1519,9 +1512,6 @@ xfs_qm_init_quotainos( } } else { flags |= XFS_QMOPT_SBVERSION; - sbflags |= (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | - XFS_SB_GQUOTINO | XFS_SB_PQUOTINO | - XFS_SB_QFLAGS); } /* @@ -1532,7 +1522,6 @@ xfs_qm_init_quotainos( */ if (XFS_IS_UQUOTA_ON(mp) && uip == NULL) { error = xfs_qm_qino_alloc(mp, &uip, - sbflags | XFS_SB_UQUOTINO, flags | XFS_QMOPT_UQUOTA); if (error) goto error_rele; @@ -1541,7 +1530,6 @@ xfs_qm_init_quotainos( } if (XFS_IS_GQUOTA_ON(mp) && gip == NULL) { error = xfs_qm_qino_alloc(mp, &gip, - sbflags | XFS_SB_GQUOTINO, flags | XFS_QMOPT_GQUOTA); if (error) goto error_rele; @@ -1550,7 +1538,6 @@ xfs_qm_init_quotainos( } if (XFS_IS_PQUOTA_ON(mp) && pip == NULL) { error = xfs_qm_qino_alloc(mp, &pip, - sbflags | XFS_SB_PQUOTINO, flags | XFS_QMOPT_PQUOTA); if (error) goto error_rele; @@ -1595,8 +1582,7 @@ xfs_qm_dqfree_one( */ int xfs_qm_write_sb_changes( - xfs_mount_t *mp, - __int64_t flags) + struct xfs_mount *mp) { xfs_trans_t *tp; int error; @@ -1608,10 +1594,8 @@ xfs_qm_write_sb_changes( return error; } - xfs_mod_sb(tp, flags); - error = xfs_trans_commit(tp, 0); - - return error; + xfs_mod_sb(tp); + return xfs_trans_commit(tp, 0); } diff --git a/fs/xfs/xfs_qm.h b/fs/xfs/xfs_qm.h index 3a07a93..bddd23f 100644 --- a/fs/xfs/xfs_qm.h +++ b/fs/xfs/xfs_qm.h @@ -157,7 +157,7 @@ struct xfs_dquot_acct { #define XFS_QM_RTBWARNLIMIT 5 extern void xfs_qm_destroy_quotainfo(struct xfs_mount *); -extern int xfs_qm_write_sb_changes(struct xfs_mount *, __int64_t); +extern int xfs_qm_write_sb_changes(struct xfs_mount *); /* dquot stuff */ extern void xfs_qm_dqpurge_all(struct xfs_mount *, uint); diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c index 80f2d77..45f28f1 100644 --- a/fs/xfs/xfs_qm_syscalls.c +++ b/fs/xfs/xfs_qm_syscalls.c @@ -93,8 +93,7 @@ xfs_qm_scall_quotaoff( mutex_unlock(&q->qi_quotaofflock); /* XXX what to do if error ? Revert back to old vals incore ? */ - error = xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS); - return error; + return xfs_qm_write_sb_changes(mp); } dqtype = 0; @@ -315,7 +314,6 @@ xfs_qm_scall_quotaon( { int error; uint qf; - __int64_t sbflags; flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD); /* @@ -323,8 +321,6 @@ xfs_qm_scall_quotaon( */ flags &= ~(XFS_ALL_QUOTA_ACCT); - sbflags = 0; - if (flags == 0) { xfs_debug(mp, "%s: zero flags, m_qflags=%x", __func__, mp->m_qflags); @@ -371,11 +367,10 @@ xfs_qm_scall_quotaon( /* * There's nothing to change if it's the same. */ - if ((qf & flags) == flags && sbflags == 0) + if ((qf & flags) == flags) return -EEXIST; - sbflags |= XFS_SB_QFLAGS; - if ((error = xfs_qm_write_sb_changes(mp, sbflags))) + if ((error = xfs_qm_write_sb_changes(mp))) return error; /* * If we aren't trying to switch on quota enforcement, we are done. @@ -800,7 +795,7 @@ xfs_qm_log_quotaoff( mp->m_sb.sb_qflags = (mp->m_qflags & ~(flags)) & XFS_MOUNT_QUOTA_ALL; spin_unlock(&mp->m_sb_lock); - xfs_mod_sb(tp, XFS_SB_QFLAGS); + xfs_mod_sb(tp); /* * We have to make sure that the transaction is secure on disk before we diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 9f622fe..a7d2def 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1255,7 +1255,7 @@ xfs_fs_remount( * might have some superblock changes to update. */ if (mp->m_update_flags) { - error = xfs_mount_log_sb(mp, mp->m_update_flags); + error = xfs_mount_log_sb(mp); if (error) { xfs_warn(mp, "failed to write sb changes"); return error; -- 2.0.0 From dave@fromorbit.com Thu Sep 25 07:20:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 1A1D77FA8 for ; Thu, 25 Sep 2014 07:20:52 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 0891C304059 for ; Thu, 25 Sep 2014 05:20:48 -0700 (PDT) X-ASG-Debug-ID: 1411647639-04cb6c50e71fae50003-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id Fwv2ILO7hD2gjhbG for ; Thu, 25 Sep 2014 05:20:45 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AoYXAP8HJFR5LHimPGdsb2JhbABggw6BKoc4rnABAQEBAQEGnASBChcBBgEBAQE4OYQEAQUaDS8eFQgYMTkDBxQZiD3DC4YSiT9ChF0FhiawSCsvgQeBQwEBAQ Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 25 Sep 2014 21:50:38 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XX82H-0006kt-Ak for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:20:37 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XX82H-0007Mm-9e for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:20:37 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 3/3] xfs: consolidate superblock logging functions Date: Thu, 25 Sep 2014 22:20:32 +1000 X-ASG-Orig-Subj: [PATCH 3/3] xfs: consolidate superblock logging functions Message-Id: <1411647632-28240-4-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411647632-28240-1-git-send-email-david@fromorbit.com> References: <1411647632-28240-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411647645 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9861 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner We now have several superblock loggin functions that are identical except for the transaction reservation and whether it shoul dbe a synchronous transaction or not. Consolidate these all into a single function, a single reserveration and a sync flag and call it xfs_sync_sb(). Also, xfs_mod_sb() is not really a modification function - it's the operation of logging the superblock buffer. hence change the name of it to reflect this. Note that we have to change the mp->m_update_flags that are passed around at mount time to a boolean simply to indicate a superblock update is needed. Signed-off-by: Dave Chinner --- fs/xfs/libxfs/xfs_attr_leaf.c | 2 +- fs/xfs/libxfs/xfs_bmap.c | 10 +++--- fs/xfs/libxfs/xfs_sb.c | 43 +++++++++++++++++++---- fs/xfs/libxfs/xfs_sb.h | 42 ++--------------------- fs/xfs/libxfs/xfs_shared.h | 26 ++++++-------- fs/xfs/libxfs/xfs_trans_resv.c | 14 -------- fs/xfs/libxfs/xfs_trans_resv.h | 1 - fs/xfs/xfs_fsops.c | 29 ---------------- fs/xfs/xfs_log.c | 17 ++++++++-- fs/xfs/xfs_mount.c | 77 ++++++------------------------------------ fs/xfs/xfs_mount.h | 3 +- fs/xfs/xfs_qm.c | 27 ++------------- fs/xfs/xfs_qm_syscalls.c | 7 ++-- fs/xfs/xfs_super.c | 13 +++---- 14 files changed, 95 insertions(+), 216 deletions(-) diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c index f4a47a7..bcb0ab1 100644 --- a/fs/xfs/libxfs/xfs_attr_leaf.c +++ b/fs/xfs/libxfs/xfs_attr_leaf.c @@ -405,7 +405,7 @@ xfs_sbversion_add_attr2(xfs_mount_t *mp, xfs_trans_t *tp) if (!xfs_sb_version_hasattr2(&mp->m_sb)) { xfs_sb_version_addattr2(&mp->m_sb); spin_unlock(&mp->m_sb_lock); - xfs_mod_sb(tp); + xfs_log_sb(tp); } else spin_unlock(&mp->m_sb_lock); } diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index e33a780..d40be66 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -1224,20 +1224,20 @@ xfs_bmap_add_attrfork( goto bmap_cancel; if (!xfs_sb_version_hasattr(&mp->m_sb) || (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2)) { - bool mod_sb = false; + bool log_sb = false; spin_lock(&mp->m_sb_lock); if (!xfs_sb_version_hasattr(&mp->m_sb)) { xfs_sb_version_addattr(&mp->m_sb); - mod_sb = true; + log_sb = true; } if (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2) { xfs_sb_version_addattr2(&mp->m_sb); - mod_sb = true; + log_sb = true; } spin_unlock(&mp->m_sb_lock); - if (mod_sb) - xfs_mod_sb(tp); + if (log_sb) + xfs_log_sb(tp); } error = xfs_bmap_finish(&tp, &flist, &committed); diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c index 2803325..b5ffbe4 100644 --- a/fs/xfs/libxfs/xfs_sb.c +++ b/fs/xfs/libxfs/xfs_sb.c @@ -744,14 +744,13 @@ xfs_initialize_perag_data( } /* - * xfs_mod_sb() can be used to copy arbitrary changes to the - * in-core superblock into the superblock buffer to be logged. - * It does not provide the higher level of locking that is - * needed to protect the in-core superblock from concurrent - * access. + * xfs_log_sb() can be used to copy arbitrary changes to the in-core superblock + * into the superblock buffer to be logged. It does not provide the higher + * level of locking that is needed to protect the in-core superblock from + * concurrent access. */ void -xfs_mod_sb( +xfs_log_sb( struct xfs_trans *tp) { struct xfs_mount *mp = tp->t_mountp; @@ -761,3 +760,35 @@ xfs_mod_sb( xfs_trans_buf_set_type(tp, bp, XFS_BLFT_SB_BUF); xfs_trans_log_buf(tp, bp, 0, sizeof(struct xfs_dsb)); } + +/* + * xfs_sync_sb + * + * Sync the superblock to disk. + * + * Note that the caller is responsible for checking the frozen state of the + * filesystem. This procedure uses the non-blocking transaction allocator and + * thus will allow modifications to a frozen fs. This is required because this + * code can be called during the process of freezing where use of the high-level + * allocator would deadlock. + */ +int +xfs_sync_sb( + struct xfs_mount *mp, + bool wait) +{ + struct xfs_trans *tp; + int error; + + tp = _xfs_trans_alloc(mp, XFS_TRANS_SB_CHANGE, KM_SLEEP); + error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0); + if (error) { + xfs_trans_cancel(tp, 0); + return error; + } + + xfs_log_sb(tp); + if (wait) + xfs_trans_set_sync(tp); + return xfs_trans_commit(tp, 0); +} diff --git a/fs/xfs/libxfs/xfs_sb.h b/fs/xfs/libxfs/xfs_sb.h index c28b3c1..73dff28 100644 --- a/fs/xfs/libxfs/xfs_sb.h +++ b/fs/xfs/libxfs/xfs_sb.h @@ -274,45 +274,6 @@ typedef enum { XFS_SBS_FIELDCOUNT } xfs_sb_field_t; -/* - * Mask values, defined based on the xfs_sb_field_t values. - * Only define the ones we're using. - */ -#define XFS_SB_MVAL(x) (1LL << XFS_SBS_ ## x) -#define XFS_SB_UUID XFS_SB_MVAL(UUID) -#define XFS_SB_FNAME XFS_SB_MVAL(FNAME) -#define XFS_SB_ROOTINO XFS_SB_MVAL(ROOTINO) -#define XFS_SB_RBMINO XFS_SB_MVAL(RBMINO) -#define XFS_SB_RSUMINO XFS_SB_MVAL(RSUMINO) -#define XFS_SB_VERSIONNUM XFS_SB_MVAL(VERSIONNUM) -#define XFS_SB_UQUOTINO XFS_SB_MVAL(UQUOTINO) -#define XFS_SB_GQUOTINO XFS_SB_MVAL(GQUOTINO) -#define XFS_SB_QFLAGS XFS_SB_MVAL(QFLAGS) -#define XFS_SB_SHARED_VN XFS_SB_MVAL(SHARED_VN) -#define XFS_SB_UNIT XFS_SB_MVAL(UNIT) -#define XFS_SB_WIDTH XFS_SB_MVAL(WIDTH) -#define XFS_SB_ICOUNT XFS_SB_MVAL(ICOUNT) -#define XFS_SB_IFREE XFS_SB_MVAL(IFREE) -#define XFS_SB_FDBLOCKS XFS_SB_MVAL(FDBLOCKS) -#define XFS_SB_FEATURES2 XFS_SB_MVAL(FEATURES2) -#define XFS_SB_BAD_FEATURES2 XFS_SB_MVAL(BAD_FEATURES2) -#define XFS_SB_FEATURES_COMPAT XFS_SB_MVAL(FEATURES_COMPAT) -#define XFS_SB_FEATURES_RO_COMPAT XFS_SB_MVAL(FEATURES_RO_COMPAT) -#define XFS_SB_FEATURES_INCOMPAT XFS_SB_MVAL(FEATURES_INCOMPAT) -#define XFS_SB_FEATURES_LOG_INCOMPAT XFS_SB_MVAL(FEATURES_LOG_INCOMPAT) -#define XFS_SB_CRC XFS_SB_MVAL(CRC) -#define XFS_SB_PQUOTINO XFS_SB_MVAL(PQUOTINO) -#define XFS_SB_NUM_BITS ((int)XFS_SBS_FIELDCOUNT) -#define XFS_SB_ALL_BITS ((1LL << XFS_SB_NUM_BITS) - 1) -#define XFS_SB_MOD_BITS \ - (XFS_SB_UUID | XFS_SB_ROOTINO | XFS_SB_RBMINO | XFS_SB_RSUMINO | \ - XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | XFS_SB_GQUOTINO | \ - XFS_SB_QFLAGS | XFS_SB_SHARED_VN | XFS_SB_UNIT | XFS_SB_WIDTH | \ - XFS_SB_ICOUNT | XFS_SB_IFREE | XFS_SB_FDBLOCKS | XFS_SB_FEATURES2 | \ - XFS_SB_BAD_FEATURES2 | XFS_SB_FEATURES_COMPAT | \ - XFS_SB_FEATURES_RO_COMPAT | XFS_SB_FEATURES_INCOMPAT | \ - XFS_SB_FEATURES_LOG_INCOMPAT | XFS_SB_PQUOTINO) - /* * Misc. Flags - warning - these will be cleared by xfs_repair unless @@ -612,7 +573,8 @@ extern void xfs_perag_put(struct xfs_perag *pag); extern int xfs_initialize_perag_data(struct xfs_mount *, xfs_agnumber_t); extern void xfs_sb_calc_crc(struct xfs_buf *bp); -extern void xfs_mod_sb(struct xfs_trans *tp); +extern void xfs_log_sb(struct xfs_trans *tp); +extern int xfs_sync_sb(struct xfs_mount *mp, bool wait); extern void xfs_sb_mount_common(struct xfs_mount *mp, struct xfs_sb *sbp); extern void xfs_sb_from_disk(struct xfs_sb *to, struct xfs_dsb *from); extern void xfs_sb_to_disk(struct xfs_dsb *to, struct xfs_sb *from); diff --git a/fs/xfs/libxfs/xfs_shared.h b/fs/xfs/libxfs/xfs_shared.h index 82404da..4ae617a 100644 --- a/fs/xfs/libxfs/xfs_shared.h +++ b/fs/xfs/libxfs/xfs_shared.h @@ -82,7 +82,7 @@ extern const struct xfs_buf_ops xfs_symlink_buf_ops; #define XFS_TRANS_ATTR_RM 23 #define XFS_TRANS_ATTR_FLAG 24 #define XFS_TRANS_CLEAR_AGI_BUCKET 25 -#define XFS_TRANS_QM_SBCHANGE 26 +#define XFS_TRANS_SB_CHANGE 26 /* * Dummy entries since we use the transaction type to index into the * trans_type[] in xlog_recover_print_trans_head() @@ -95,17 +95,15 @@ extern const struct xfs_buf_ops xfs_symlink_buf_ops; #define XFS_TRANS_QM_DQCLUSTER 32 #define XFS_TRANS_QM_QINOCREATE 33 #define XFS_TRANS_QM_QUOTAOFF_END 34 -#define XFS_TRANS_SB_UNIT 35 -#define XFS_TRANS_FSYNC_TS 36 -#define XFS_TRANS_GROWFSRT_ALLOC 37 -#define XFS_TRANS_GROWFSRT_ZERO 38 -#define XFS_TRANS_GROWFSRT_FREE 39 -#define XFS_TRANS_SWAPEXT 40 -#define XFS_TRANS_SB_COUNT 41 -#define XFS_TRANS_CHECKPOINT 42 -#define XFS_TRANS_ICREATE 43 -#define XFS_TRANS_CREATE_TMPFILE 44 -#define XFS_TRANS_TYPE_MAX 44 +#define XFS_TRANS_FSYNC_TS 35 +#define XFS_TRANS_GROWFSRT_ALLOC 36 +#define XFS_TRANS_GROWFSRT_ZERO 37 +#define XFS_TRANS_GROWFSRT_FREE 37 +#define XFS_TRANS_SWAPEXT 39 +#define XFS_TRANS_CHECKPOINT 40 +#define XFS_TRANS_ICREATE 41 +#define XFS_TRANS_CREATE_TMPFILE 42 +#define XFS_TRANS_TYPE_MAX 43 /* new transaction types need to be reflected in xfs_logprint(8) */ #define XFS_TRANS_TYPES \ @@ -134,20 +132,18 @@ extern const struct xfs_buf_ops xfs_symlink_buf_ops; { XFS_TRANS_ATTR_RM, "ATTR_RM" }, \ { XFS_TRANS_ATTR_FLAG, "ATTR_FLAG" }, \ { XFS_TRANS_CLEAR_AGI_BUCKET, "CLEAR_AGI_BUCKET" }, \ - { XFS_TRANS_QM_SBCHANGE, "QM_SBCHANGE" }, \ + { XFS_TRANS_SB_CHANGE, "SBCHANGE" }, \ { XFS_TRANS_QM_QUOTAOFF, "QM_QUOTAOFF" }, \ { XFS_TRANS_QM_DQALLOC, "QM_DQALLOC" }, \ { XFS_TRANS_QM_SETQLIM, "QM_SETQLIM" }, \ { XFS_TRANS_QM_DQCLUSTER, "QM_DQCLUSTER" }, \ { XFS_TRANS_QM_QINOCREATE, "QM_QINOCREATE" }, \ { XFS_TRANS_QM_QUOTAOFF_END, "QM_QOFF_END" }, \ - { XFS_TRANS_SB_UNIT, "SB_UNIT" }, \ { XFS_TRANS_FSYNC_TS, "FSYNC_TS" }, \ { XFS_TRANS_GROWFSRT_ALLOC, "GROWFSRT_ALLOC" }, \ { XFS_TRANS_GROWFSRT_ZERO, "GROWFSRT_ZERO" }, \ { XFS_TRANS_GROWFSRT_FREE, "GROWFSRT_FREE" }, \ { XFS_TRANS_SWAPEXT, "SWAPEXT" }, \ - { XFS_TRANS_SB_COUNT, "SB_COUNT" }, \ { XFS_TRANS_CHECKPOINT, "CHECKPOINT" }, \ { XFS_TRANS_DUMMY1, "DUMMY1" }, \ { XFS_TRANS_DUMMY2, "DUMMY2" }, \ diff --git a/fs/xfs/libxfs/xfs_trans_resv.c b/fs/xfs/libxfs/xfs_trans_resv.c index f2bda7c..7c42e2c 100644 --- a/fs/xfs/libxfs/xfs_trans_resv.c +++ b/fs/xfs/libxfs/xfs_trans_resv.c @@ -718,17 +718,6 @@ xfs_calc_clear_agi_bucket_reservation( } /* - * Clearing the quotaflags in the superblock. - * the super block for changing quota flags: sector size - */ -STATIC uint -xfs_calc_qm_sbchange_reservation( - struct xfs_mount *mp) -{ - return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize); -} - -/* * Adjusting quota limits. * the xfs_disk_dquot_t: sizeof(struct xfs_disk_dquot) */ @@ -866,9 +855,6 @@ xfs_trans_resv_calc( * The following transactions are logged in logical format with * a default log count. */ - resp->tr_qm_sbchange.tr_logres = xfs_calc_qm_sbchange_reservation(mp); - resp->tr_qm_sbchange.tr_logcount = XFS_DEFAULT_LOG_COUNT; - resp->tr_qm_setqlim.tr_logres = xfs_calc_qm_setqlim_reservation(mp); resp->tr_qm_setqlim.tr_logcount = XFS_DEFAULT_LOG_COUNT; diff --git a/fs/xfs/libxfs/xfs_trans_resv.h b/fs/xfs/libxfs/xfs_trans_resv.h index 1097d14..2d5bdfc 100644 --- a/fs/xfs/libxfs/xfs_trans_resv.h +++ b/fs/xfs/libxfs/xfs_trans_resv.h @@ -56,7 +56,6 @@ struct xfs_trans_resv { struct xfs_trans_res tr_growrtalloc; /* grow realtime allocations */ struct xfs_trans_res tr_growrtzero; /* grow realtime zeroing */ struct xfs_trans_res tr_growrtfree; /* grow realtime freeing */ - struct xfs_trans_res tr_qm_sbchange; /* change quota flags */ struct xfs_trans_res tr_qm_setqlim; /* adjust quota limits */ struct xfs_trans_res tr_qm_dqalloc; /* allocate quota on disk */ struct xfs_trans_res tr_qm_quotaoff; /* turn quota off */ diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index 2c44e0b..126b4b3 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -763,35 +763,6 @@ out: return 0; } -/* - * Dump a transaction into the log that contains no real change. This is needed - * to be able to make the log dirty or stamp the current tail LSN into the log - * during the covering operation. - * - * We cannot use an inode here for this - that will push dirty state back up - * into the VFS and then periodic inode flushing will prevent log covering from - * making progress. Hence we log a field in the superblock instead and use a - * synchronous transaction to ensure the superblock is immediately unpinned - * and can be written back. - */ -int -xfs_fs_log_dummy( - xfs_mount_t *mp) -{ - xfs_trans_t *tp; - int error; - - tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1, KM_SLEEP); - error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0); - if (error) { - xfs_trans_cancel(tp, 0); - return error; - } - xfs_mod_sb(tp); - xfs_trans_set_sync(tp); - return xfs_trans_commit(tp, 0); -} - int xfs_fs_goingdown( xfs_mount_t *mp, diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index 7ada70c..b1131fe 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -1292,9 +1292,20 @@ xfs_log_worker( struct xfs_mount *mp = log->l_mp; /* dgc: errors ignored - not fatal and nowhere to report them */ - if (xfs_log_need_covered(mp)) - xfs_fs_log_dummy(mp); - else + if (xfs_log_need_covered(mp)) { + /* + * Dump a transaction into the log that contains no real change. + * This is needed stamp the current tail LSN into the log during + * the covering operation. + * + * We cannot use an inode here for this - that will push dirty + * state back up into the VFS and then periodic inode flushing + * will prevent log covering from making progress. Hence we + * synchronously log the superblock instead to ensure the + * superblock is immediately unpinned and can be written back. + */ + xfs_sync_sb(mp, true); + } else xfs_log_force(mp, 0); /* start pushing all the metadata that is currently dirty */ diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index e555411..78a2799 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -416,11 +416,11 @@ xfs_update_alignment(xfs_mount_t *mp) if (xfs_sb_version_hasdalign(sbp)) { if (sbp->sb_unit != mp->m_dalign) { sbp->sb_unit = mp->m_dalign; - mp->m_update_flags |= XFS_SB_UNIT; + mp->m_update_sb = true; } if (sbp->sb_width != mp->m_swidth) { sbp->sb_width = mp->m_swidth; - mp->m_update_flags |= XFS_SB_WIDTH; + mp->m_update_sb = true; } } else { xfs_warn(mp, @@ -588,38 +588,18 @@ int xfs_mount_reset_sbqflags( struct xfs_mount *mp) { - int error; - struct xfs_trans *tp; - mp->m_qflags = 0; - /* - * It is OK to look at sb_qflags here in mount path, - * without m_sb_lock. - */ + /* It is OK to look at sb_qflags in the mount path without m_sb_lock. */ if (mp->m_sb.sb_qflags == 0) return 0; spin_lock(&mp->m_sb_lock); mp->m_sb.sb_qflags = 0; spin_unlock(&mp->m_sb_lock); - /* - * If the fs is readonly, let the incore superblock run - * with quotas off but don't flush the update out to disk - */ if (!xfs_fs_writable(mp, SB_UNFROZEN)) return 0; - - tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE); - error = xfs_trans_reserve(tp, &M_RES(mp)->tr_qm_sbchange, 0, 0); - if (error) { - xfs_trans_cancel(tp, 0); - xfs_alert(mp, "%s: Superblock update failed!", __func__); - return error; - } - - xfs_mod_sb(tp); - return xfs_trans_commit(tp, 0); + return xfs_sync_sb(mp, false); } __uint64_t @@ -683,7 +663,7 @@ xfs_mountfs( xfs_warn(mp, "correcting sb_features alignment problem"); sbp->sb_features2 |= sbp->sb_bad_features2; sbp->sb_bad_features2 = sbp->sb_features2; - mp->m_update_flags |= XFS_SB_FEATURES2 | XFS_SB_BAD_FEATURES2; + mp->m_update_sb = true; /* * Re-check for ATTR2 in case it was found in bad_features2 @@ -697,17 +677,17 @@ xfs_mountfs( if (xfs_sb_version_hasattr2(&mp->m_sb) && (mp->m_flags & XFS_MOUNT_NOATTR2)) { xfs_sb_version_removeattr2(&mp->m_sb); - mp->m_update_flags |= XFS_SB_FEATURES2; + mp->m_update_sb = true; /* update sb_versionnum for the clearing of the morebits */ if (!sbp->sb_features2) - mp->m_update_flags |= XFS_SB_VERSIONNUM; + mp->m_update_sb = true; } /* always use v2 inodes by default now */ if (!(mp->m_sb.sb_versionnum & XFS_SB_VERSION_NLINKBIT)) { mp->m_sb.sb_versionnum |= XFS_SB_VERSION_NLINKBIT; - mp->m_update_flags |= XFS_SB_VERSIONNUM; + mp->m_update_sb = true; } /* @@ -900,8 +880,8 @@ xfs_mountfs( * the next remount into writeable mode. Otherwise we would never * perform the update e.g. for the root filesystem. */ - if (mp->m_update_flags && !(mp->m_flags & XFS_MOUNT_RDONLY)) { - error = xfs_mount_log_sb(mp); + if (mp->m_update_sb && !(mp->m_flags & XFS_MOUNT_RDONLY)) { + error = xfs_sync_sb(mp, false); if (error) { xfs_warn(mp, "failed to write sb changes"); goto out_rtunmount; @@ -1101,9 +1081,6 @@ xfs_fs_writable(xfs_mount_t *mp, int frozen_state) int xfs_log_sbcount(xfs_mount_t *mp) { - xfs_trans_t *tp; - int error; - /* * We can be called during the fs freeze process, and we need to be * able to write the superblock in that case. @@ -1120,17 +1097,7 @@ xfs_log_sbcount(xfs_mount_t *mp) if (!xfs_sb_version_haslazysbcount(&mp->m_sb)) return 0; - tp = _xfs_trans_alloc(mp, XFS_TRANS_SB_COUNT, KM_SLEEP); - error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0); - if (error) { - xfs_trans_cancel(tp, 0); - return error; - } - - xfs_mod_sb(tp); - xfs_trans_set_sync(tp); - error = xfs_trans_commit(tp, 0); - return error; + return xfs_sync_sb(mp, true); } /* @@ -1424,28 +1391,6 @@ xfs_freesb( } /* - * Used to log changes to the superblock unit and width fields which could - * be altered by the mount options, as well as any potential sb_features2 - * fixup. Only the first superblock is updated. - */ -int -xfs_mount_log_sb( - xfs_mount_t *mp) -{ - xfs_trans_t *tp; - int error; - - tp = xfs_trans_alloc(mp, XFS_TRANS_SB_UNIT); - error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0); - if (error) { - xfs_trans_cancel(tp, 0); - return error; - } - xfs_mod_sb(tp); - return xfs_trans_commit(tp, 0); -} - -/* * If the underlying (data/log/rt) device is readonly, there are some * operations that cannot proceed. */ diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index 01f66e5..06f16d5 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -162,8 +162,7 @@ typedef struct xfs_mount { struct delayed_work m_reclaim_work; /* background inode reclaim */ struct delayed_work m_eofblocks_work; /* background eof blocks trimming */ - __int64_t m_update_flags; /* sb flags we need to update - on the next remount,rw */ + bool m_update_sb; /* sb needs update in mount */ int64_t m_low_space[XFS_LOWSP_MAX]; /* low free space thresholds */ struct xfs_kobj m_kobj; diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c index 1691edb..bfb017d 100644 --- a/fs/xfs/xfs_qm.c +++ b/fs/xfs/xfs_qm.c @@ -794,7 +794,7 @@ xfs_qm_qino_alloc( else mp->m_sb.sb_pquotino = (*ip)->i_ino; spin_unlock(&mp->m_sb_lock); - xfs_mod_sb(tp); + xfs_log_sb(tp); if ((error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES))) { xfs_alert(mp, "%s failed (error %d)!", __func__, error); @@ -1447,7 +1447,7 @@ xfs_qm_mount_quotas( spin_unlock(&mp->m_sb_lock); if (sbf != (mp->m_qflags & XFS_MOUNT_QUOTA_ALL)) { - if (xfs_qm_write_sb_changes(mp)) { + if (xfs_sync_sb(mp, false)) { /* * We could only have been turning quotas off. * We aren't in very good shape actually because @@ -1576,29 +1576,6 @@ xfs_qm_dqfree_one( xfs_qm_dqdestroy(dqp); } -/* - * Start a transaction and write the incore superblock changes to - * disk. flags parameter indicates which fields have changed. - */ -int -xfs_qm_write_sb_changes( - struct xfs_mount *mp) -{ - xfs_trans_t *tp; - int error; - - tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE); - error = xfs_trans_reserve(tp, &M_RES(mp)->tr_qm_sbchange, 0, 0); - if (error) { - xfs_trans_cancel(tp, 0); - return error; - } - - xfs_mod_sb(tp); - return xfs_trans_commit(tp, 0); -} - - /* --------------- utility functions for vnodeops ---------------- */ diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c index 45f28f1..d558306 100644 --- a/fs/xfs/xfs_qm_syscalls.c +++ b/fs/xfs/xfs_qm_syscalls.c @@ -93,7 +93,7 @@ xfs_qm_scall_quotaoff( mutex_unlock(&q->qi_quotaofflock); /* XXX what to do if error ? Revert back to old vals incore ? */ - return xfs_qm_write_sb_changes(mp); + return xfs_sync_sb(mp, false); } dqtype = 0; @@ -370,7 +370,8 @@ xfs_qm_scall_quotaon( if ((qf & flags) == flags) return -EEXIST; - if ((error = xfs_qm_write_sb_changes(mp))) + error = xfs_sync_sb(mp, false); + if (error) return error; /* * If we aren't trying to switch on quota enforcement, we are done. @@ -795,7 +796,7 @@ xfs_qm_log_quotaoff( mp->m_sb.sb_qflags = (mp->m_qflags & ~(flags)) & XFS_MOUNT_QUOTA_ALL; spin_unlock(&mp->m_sb_lock); - xfs_mod_sb(tp); + xfs_log_sb(tp); /* * We have to make sure that the transaction is secure on disk before we diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index a7d2def..d018f65 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1254,13 +1254,13 @@ xfs_fs_remount( * If this is the first remount to writeable state we * might have some superblock changes to update. */ - if (mp->m_update_flags) { - error = xfs_mount_log_sb(mp); + if (mp->m_update_sb) { + error = xfs_sync_sb(mp, false); if (error) { xfs_warn(mp, "failed to write sb changes"); return error; } - mp->m_update_flags = 0; + mp->m_update_sb = false; } /* @@ -1290,8 +1290,9 @@ xfs_fs_remount( /* * Second stage of a freeze. The data is already frozen so we only - * need to take care of the metadata. Once that's done write a dummy - * record to dirty the log in case of a crash while frozen. + * need to take care of the metadata. Once that's done sync the superblock + * to the log to dirty it in case of a crash while frozen. This ensures that we + * will recover the unlinked inode lists on the next mount. */ STATIC int xfs_fs_freeze( @@ -1301,7 +1302,7 @@ xfs_fs_freeze( xfs_save_resvblks(mp); xfs_quiesce_attr(mp); - return xfs_fs_log_dummy(mp); + return xfs_sync_sb(mp, true); } STATIC int -- 2.0.0 From dave@fromorbit.com Thu Sep 25 07:34:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id F3CEE7F9A for ; Thu, 25 Sep 2014 07:34:44 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id E18658F804C for ; Thu, 25 Sep 2014 05:34:44 -0700 (PDT) X-ASG-Debug-ID: 1411648482-04cb6c50e51ff7b0001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id G5gHe9zGISclVZGy for ; Thu, 25 Sep 2014 05:34:43 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AoEXAIULJFR5LHimPGdsb2JhbABggw6BKoc4rnABAQEBAQEGnQ4XAQYBAQEBODmEBAEFJy8zCBgxOQMHFBmIPcMDhhKKKYQ1BaldjRErL4JKAQEB Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 25 Sep 2014 22:04:25 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XX8Fb-0006nA-Rz for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XX8Fb-0007gP-Qd for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 02/11] xfs: Don't use xfs_buf_iowait in the delwri buffer code Date: Thu, 25 Sep 2014 22:34:12 +1000 X-ASG-Orig-Subj: [PATCH 02/11] xfs: Don't use xfs_buf_iowait in the delwri buffer code Message-Id: <1411648461-29003-3-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411648461-29003-1-git-send-email-david@fromorbit.com> References: <1411648461-29003-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411648482 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9861 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner For the special case of delwri buffer submission and waiting, we don't need to issue IO synchronously at all. The second pass to call xfs_buf_iowait() can be replaced with blocking on xfs_buf_lock() - the buffer will be unlocked when the async IO is complete. This formalises a sane the method of waiting for async IO - take an extra reference, submit the IO, call xfs_buf_lock() when you want to wait for IO completion. i.e.: bp = xfs_buf_find(); xfs_buf_hold(bp); bp->b_flags |= XBF_ASYNC; xfs_buf_iosubmit(bp); xfs_buf_lock(bp) error = bp->b_error; .... xfs_buf_relse(bp); While this is somewhat racy for gathering IO errors, none of the code that calls xfs_buf_delwri_submit() will race against other users of the buffers being submitted. Even if they do, we don't really care if the error is detected by the delwri code or the user we raced against. Either way, the error will be detected and handled. Signed-off-by: Dave Chinner --- fs/xfs/xfs_buf.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index ec65050..f1bd238 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1813,12 +1813,17 @@ __xfs_buf_delwri_submit( blk_start_plug(&plug); list_for_each_entry_safe(bp, n, io_list, b_list) { bp->b_flags &= ~(_XBF_DELWRI_Q | XBF_ASYNC | XBF_WRITE_FAIL); - bp->b_flags |= XBF_WRITE; + bp->b_flags |= XBF_WRITE | XBF_ASYNC; - if (!wait) { - bp->b_flags |= XBF_ASYNC; + /* + * we do all Io submission async. This means if we need to wait + * for IO completion we need to take an extra reference so the + * buffer is still valid on the other side. + */ + if (wait) + xfs_buf_hold(bp); + else list_del_init(&bp->b_list); - } xfs_bdstrat_cb(bp); } blk_finish_plug(&plug); @@ -1866,7 +1871,10 @@ xfs_buf_delwri_submit( bp = list_first_entry(&io_list, struct xfs_buf, b_list); list_del_init(&bp->b_list); - error2 = xfs_buf_iowait(bp); + + /* locking the buffer will wait for async IO completion. */ + xfs_buf_lock(bp); + error2 = bp->b_error; xfs_buf_relse(bp); if (!error) error = error2; -- 2.0.0 From dave@fromorbit.com Thu Sep 25 07:34:46 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 0C2D57F9A for ; Thu, 25 Sep 2014 07:34:46 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id E5C4E8F804C for ; Thu, 25 Sep 2014 05:34:45 -0700 (PDT) X-ASG-Debug-ID: 1411648483-04cbb0730225ec90001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id pVRGT3vBttjag3fD for ; Thu, 25 Sep 2014 05:34:44 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AoEXAIULJFR5LHimPGdsb2JhbABggw6BKoc4rnABAQEBAQEGnQ4XAQYBAQEBODmEBAEFJy8zCBgxOQMHFBmIPcMDhhKKKYQ1BYYmkjKeFisvgkoBAQE Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 25 Sep 2014 22:04:25 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XX8Fb-0006n9-RG for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XX8Fb-0007gK-QG for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 01/11] xfs: force the log before shutting down Date: Thu, 25 Sep 2014 22:34:11 +1000 X-ASG-Orig-Subj: [PATCH 01/11] xfs: force the log before shutting down Message-Id: <1411648461-29003-2-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411648461-29003-1-git-send-email-david@fromorbit.com> References: <1411648461-29003-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411648483 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9862 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner When we have marked the filesystem for shutdown, we want to prevent any further buffer IO from being submitted. However, we currently force the log after marking the filesystem as shut down, hence allowing IO to the log *after* we have marked both the filesystem and the log as in an error state. Clean this up by forcing the log before we mark the filesytem with an error. This replaces the pure CIL flush that we currently have which works around this same issue (i.e the CIL can't be flushed once the shutdown flags are set) and hence enables us to clean up the logic substantially. Signed-off-by: Dave Chinner --- fs/xfs/xfs_log.c | 37 +++++++++---------------------------- 1 file changed, 9 insertions(+), 28 deletions(-) diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index b1131fe..a598955 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -3924,13 +3924,14 @@ xfs_log_force_umount( retval = 0; /* - * Flush the in memory commit item list before marking the log as - * being shut down. We need to do it in this order to ensure all the - * completed transactions are flushed to disk with the xfs_log_force() - * call below. + * Flush all the completed transactions to disk before marking the log + * being shut down. We need to do it in this order to ensure that + * completed operations are safely on disk before we shut down, and that + * we don't have to issue any buffer IO after the shutdown flags are set + * to guarantee this. */ if (!logerror) - xlog_cil_force(log); + _xfs_log_force(mp, XFS_LOG_SYNC, NULL); /* * mark the filesystem and the as in a shutdown state and wake @@ -3942,18 +3943,11 @@ xfs_log_force_umount( XFS_BUF_DONE(mp->m_sb_bp); /* - * This flag is sort of redundant because of the mount flag, but - * it's good to maintain the separation between the log and the rest - * of XFS. + * Mark the log and the iclogs with IO error flags to prevent any + * further log IO from being issued or completed. */ log->l_flags |= XLOG_IO_ERROR; - - /* - * If we hit a log error, we want to mark all the iclogs IOERROR - * while we're still holding the loglock. - */ - if (logerror) - retval = xlog_state_ioerror(log); + retval = xlog_state_ioerror(log); spin_unlock(&log->l_icloglock); /* @@ -3966,19 +3960,6 @@ xfs_log_force_umount( xlog_grant_head_wake_all(&log->l_reserve_head); xlog_grant_head_wake_all(&log->l_write_head); - if (!(log->l_iclog->ic_state & XLOG_STATE_IOERROR)) { - ASSERT(!logerror); - /* - * Force the incore logs to disk before shutting the - * log down completely. - */ - _xfs_log_force(mp, XFS_LOG_SYNC, NULL); - - spin_lock(&log->l_icloglock); - retval = xlog_state_ioerror(log); - spin_unlock(&log->l_icloglock); - } - /* * Wake up everybody waiting on xfs_log_force. Wake the CIL push first * as if the log writes were completed. The abort handling in the log -- 2.0.0 From dave@fromorbit.com Thu Sep 25 07:34:46 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 1D41F7F9B for ; Thu, 25 Sep 2014 07:34:46 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id F19328F8050 for ; Thu, 25 Sep 2014 05:34:45 -0700 (PDT) X-ASG-Debug-ID: 1411648482-04cb6c50e51ff7b0002-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id 1m4hw8tyIOpBoXww for ; Thu, 25 Sep 2014 05:34:44 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AoEXAIULJFR5LHimPGdsb2JhbABggw6BKoc4rnABAQEBAQEGnQ4XAQYBAQEBODmEBAEFJy8zCBgxOQMHFBmIPcMDhhKOXgW2bisvgkoBAQE Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 25 Sep 2014 22:04:25 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XX8Fb-0006nB-ST for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XX8Fb-0007gU-RL for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 03/11] xfs: synchronous buffer IO needs a reference Date: Thu, 25 Sep 2014 22:34:13 +1000 X-ASG-Orig-Subj: [PATCH 03/11] xfs: synchronous buffer IO needs a reference Message-Id: <1411648461-29003-4-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411648461-29003-1-git-send-email-david@fromorbit.com> References: <1411648461-29003-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411648484 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9861 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner When synchronous IO runs IO completion work, it does so without an IO reference or a hold reference on the buffer. The IO "hold reference" is owned by the submitter, and released when the submission is complete. The IO reference is released when both the submitter and the bio end_io processing is run, and so if the io completion work is run from IO completion context, it is run without an IO reference. Hence we can get the situation where the submitter can submit the IO, see an error on the buffer and unlock and free the buffer while there is still IO in progress. This leads to use-after-free and memory corruption. Fix this by taking a "sync IO hold" reference that is owned by the IO and not released until after the buffer completion calls are run to wake up synchronous waiters. This means that the buffer will not be freed in any circumstance until all IO processing is completed. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig --- fs/xfs/xfs_buf.c | 51 ++++++++++++++++++++++++++++++++++++++++++--------- 1 file changed, 42 insertions(+), 9 deletions(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index f1bd238..5d8d2e1 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1019,6 +1019,9 @@ xfs_buf_iodone_work( else { ASSERT(read && bp->b_ops); complete(&bp->b_iowait); + + /* release the !XBF_ASYNC ref now we are done. */ + xfs_buf_rele(bp); } } @@ -1044,6 +1047,7 @@ xfs_buf_ioend( } else { bp->b_flags &= ~(XBF_READ | XBF_WRITE | XBF_READ_AHEAD); complete(&bp->b_iowait); + xfs_buf_rele(bp); } } @@ -1086,8 +1090,11 @@ xfs_bioerror( xfs_buf_ioerror(bp, -EIO); /* - * We're calling xfs_buf_ioend, so delete XBF_DONE flag. + * We're calling xfs_buf_ioend, so delete XBF_DONE flag. For + * sync IO, xfs_buf_ioend is going to remove a ref here. */ + if (!(bp->b_flags & XBF_ASYNC)) + xfs_buf_hold(bp); XFS_BUF_UNREAD(bp); XFS_BUF_UNDONE(bp); xfs_buf_stale(bp); @@ -1383,22 +1390,48 @@ xfs_buf_iorequest( if (bp->b_flags & XBF_WRITE) xfs_buf_wait_unpin(bp); + + /* + * Take references to the buffer. For XBF_ASYNC buffers, holding a + * reference for as long as submission takes is all that is necessary + * here. The IO inherits the lock and hold count from the submitter, + * and these are release during IO completion processing. Taking a hold + * over submission ensures that the buffer is not freed until we have + * completed all processing, regardless of when IO errors occur or are + * reported. + * + * However, for synchronous IO, the IO does not inherit the submitters + * reference count, nor the buffer lock. Hence we need to take an extra + * reference to the buffer for the for the IO context so that we can + * guarantee the buffer is not freed until all IO completion processing + * is done. Otherwise the caller can drop their reference while the IO + * is still in progress and hence trigger a use-after-free situation. + */ xfs_buf_hold(bp); + if (!(bp->b_flags & XBF_ASYNC)) + xfs_buf_hold(bp); + /* - * Set the count to 1 initially, this will stop an I/O - * completion callout which happens before we have started - * all the I/O from calling xfs_buf_ioend too early. + * Set the count to 1 initially, this will stop an I/O completion + * callout which happens before we have started all the I/O from calling + * xfs_buf_ioend too early. */ atomic_set(&bp->b_io_remaining, 1); _xfs_buf_ioapply(bp); + /* - * If _xfs_buf_ioapply failed, we'll get back here with - * only the reference we took above. _xfs_buf_ioend will - * drop it to zero, so we'd better not queue it for later, - * or we'll free it before it's done. + * If _xfs_buf_ioapply failed or we are doing synchronous IO that + * completes extremely quickly, we can get back here with only the IO + * reference we took above. _xfs_buf_ioend will drop it to zero. Run + * completion processing synchronously so that we don't return to the + * caller with completion still pending. This avoids unnecessary context + * switches associated with the end_io workqueue. */ - _xfs_buf_ioend(bp, bp->b_error ? 0 : 1); + if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) + _xfs_buf_ioend(bp, 0); + else + _xfs_buf_ioend(bp, 1); xfs_buf_rele(bp); } -- 2.0.0 From dave@fromorbit.com Thu Sep 25 07:34:48 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 25CD17FA6 for ; Thu, 25 Sep 2014 07:34:48 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id B5653AC009 for ; Thu, 25 Sep 2014 05:34:47 -0700 (PDT) X-ASG-Debug-ID: 1411648483-04cbb0730225ec90002-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id aD90h1U3RaxV9r4e for ; Thu, 25 Sep 2014 05:34:45 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AlFsAIULJFR5LHimPGdsb2JhbABggw5TV7YQAgoMAQEBAQEBBnIBhGqOWYhYFwEGAQEBATg5hGA7gQIDB4hqDp0HpW6GEod5gjCENQWWGpNDimMBgi0rLwGCSQEBAQ Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 25 Sep 2014 22:04:25 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XX8Fb-0006n8-Qs for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XX8Fb-0007gH-Pf for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 00/11 v2] xfs: clean up xfs_buf io interfaces Date: Thu, 25 Sep 2014 22:34:10 +1000 X-ASG-Orig-Subj: [PATCH 00/11 v2] xfs: clean up xfs_buf io interfaces Message-Id: <1411648461-29003-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411648485 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9862 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi folks, This is an updated version of the patch set I first posted here: http://oss.sgi.com/archives/xfs/2014-08/msg00203.html There are a few changes in the patchset as a result of review comments and bugs that I found. Version 2: - change shutdown log force code so that the log IO is done before we mark both the filesystem and the log as being shut down. (prevents a godown regression in xfstests introduced by having xfs_buf_submit() check for shutdown) - moved the delwri submission rework to the start of the patch set - moved reference count fixups in error handling to the patch that introduced the new reference counting. - dropped the xfs_trans_buf_read rework patch; it can be done at a later time after checking whether parts of the code are still needed or not. - added Christoph's xfs_zero_remaining_bytes simplification - reworked the error handling cleanups for xfs_buf_read_uncached - updated several comments -Dave. From dave@fromorbit.com Thu Sep 25 07:34:48 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 14C607FA5 for ; Thu, 25 Sep 2014 07:34:48 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 88F7AAC007 for ; Thu, 25 Sep 2014 05:34:47 -0700 (PDT) X-ASG-Debug-ID: 1411648482-04cb6c50e51ff7b0003-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id LHeAM0XABcCDjqmb for ; Thu, 25 Sep 2014 05:34:45 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AoEXAIULJFR5LHimPGdsb2JhbABggw6BKoc4rnABAQEBAQEGnQ4XAQYBAQEBODmEBAEFJy8zCBgxOQMHFBmIPcMDhhKKKYQ1BYYmozeNESsvgkoBAQE Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 25 Sep 2014 22:04:25 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XX8Fb-0006nE-U2 for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XX8Fb-0007gj-Sz for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 06/11] xfs: kill xfs_bdstrat_cb Date: Thu, 25 Sep 2014 22:34:16 +1000 X-ASG-Orig-Subj: [PATCH 06/11] xfs: kill xfs_bdstrat_cb Message-Id: <1411648461-29003-7-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411648461-29003-1-git-send-email-david@fromorbit.com> References: <1411648461-29003-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411648485 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9861 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner Only has two callers, and is just a shutdown check and error handler around xfs_buf_iorequest. However, the error handling is a mess of read and write semantics, and both internal callers only call it for writes. Hence kill the wrapper, and follow up with a patch to sanitise the error handling. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig --- fs/xfs/xfs_buf.c | 48 +++++++++++++++++++++++++----------------------- 1 file changed, 25 insertions(+), 23 deletions(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index a8f4a39..411111a 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1146,27 +1146,6 @@ xfs_bioerror_relse( return -EIO; } -STATIC int -xfs_bdstrat_cb( - struct xfs_buf *bp) -{ - if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { - trace_xfs_bdstrat_shut(bp, _RET_IP_); - /* - * Metadata write that didn't get logged but - * written delayed anyway. These aren't associated - * with a transaction, and can be ignored. - */ - if (!bp->b_iodone && !XFS_BUF_ISREAD(bp)) - return xfs_bioerror_relse(bp); - else - return xfs_bioerror(bp); - } - - xfs_buf_iorequest(bp); - return 0; -} - int xfs_bwrite( struct xfs_buf *bp) @@ -1178,7 +1157,20 @@ xfs_bwrite( bp->b_flags |= XBF_WRITE; bp->b_flags &= ~(XBF_ASYNC | XBF_READ | _XBF_DELWRI_Q | XBF_WRITE_FAIL); - xfs_bdstrat_cb(bp); + if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { + trace_xfs_bdstrat_shut(bp, _RET_IP_); + + /* + * Metadata write that didn't get logged but written anyway. + * These aren't associated with a transaction, and can be + * ignored. + */ + if (!bp->b_iodone) + return xfs_bioerror_relse(bp); + return xfs_bioerror(bp); + } + + xfs_buf_iorequest(bp); error = xfs_buf_iowait(bp); if (error) { @@ -1861,7 +1853,17 @@ __xfs_buf_delwri_submit( xfs_buf_hold(bp); else list_del_init(&bp->b_list); - xfs_bdstrat_cb(bp); + + if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { + trace_xfs_bdstrat_shut(bp, _RET_IP_); + + if (!bp->b_iodone) + xfs_bioerror_relse(bp); + else + xfs_bioerror(bp); + continue; + } + xfs_buf_iorequest(bp); } blk_finish_plug(&plug); -- 2.0.0 From dave@fromorbit.com Thu Sep 25 07:34:48 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_FRT_FOLLOW2 autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 784617FA5 for ; Thu, 25 Sep 2014 07:34:48 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 5DC648F8039 for ; Thu, 25 Sep 2014 05:34:48 -0700 (PDT) X-ASG-Debug-ID: 1411648482-04cb6c50e51ff7b0004-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id yaIA8dymPJsXQSQo for ; Thu, 25 Sep 2014 05:34:47 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AoEXAIULJFR5LHimPGdsb2JhbABggw6BKoc4rnABAQEBAQEGnQ4XAQYBAQEBODmEBAEFJy8zCBgxOQMHFBmIPcMDhhKKKYQ1BYYmozeNESsvgkoBAQE Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 25 Sep 2014 22:04:25 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XX8Fc-0006nL-0F for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:24 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XX8Fb-0007h8-VQ for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 11/11] xfs: simplify xfs_zero_remaining_bytes Date: Thu, 25 Sep 2014 22:34:21 +1000 X-ASG-Orig-Subj: [PATCH 11/11] xfs: simplify xfs_zero_remaining_bytes Message-Id: <1411648461-29003-12-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411648461-29003-1-git-send-email-david@fromorbit.com> References: <1411648461-29003-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411648486 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9861 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Christoph Hellwig xfs_zero_remaining_bytes() open codes a log of buffer manupulations to do a read forllowed by a write. It can simply be replaced by an uncached read followed by a xfs_bwrite() call. [Christoph, can I get your sign-off for this?] Signed-off-by: Dave Chinner --- fs/xfs/xfs_bmap_util.c | 44 ++++++++++++++------------------------------ 1 file changed, 14 insertions(+), 30 deletions(-) diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index 41d9488..c2aaa58 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1122,14 +1122,6 @@ xfs_zero_remaining_bytes( if (endoff > XFS_ISIZE(ip)) endoff = XFS_ISIZE(ip); - bp = xfs_buf_get_uncached(XFS_IS_REALTIME_INODE(ip) ? - mp->m_rtdev_targp : mp->m_ddev_targp, - BTOBB(mp->m_sb.sb_blocksize), 0); - if (!bp) - return -ENOMEM; - - xfs_buf_unlock(bp); - for (offset = startoff; offset <= endoff; offset = lastoffset + 1) { uint lock_mode; @@ -1152,32 +1144,24 @@ xfs_zero_remaining_bytes( ASSERT(imap.br_startblock != DELAYSTARTBLOCK); if (imap.br_state == XFS_EXT_UNWRITTEN) continue; - XFS_BUF_UNDONE(bp); - XFS_BUF_UNWRITE(bp); - XFS_BUF_READ(bp); - XFS_BUF_SET_ADDR(bp, xfs_fsb_to_db(ip, imap.br_startblock)); - error = xfs_buf_submit_wait(bp); - if (error) { - xfs_buf_ioerror_alert(bp, - "xfs_zero_remaining_bytes(read)"); - break; - } + error = xfs_buf_read_uncached(XFS_IS_REALTIME_INODE(ip) ? + mp->m_rtdev_targp : mp->m_ddev_targp, + xfs_fsb_to_db(ip, imap.br_startblock), + BTOBB(mp->m_sb.sb_blocksize), + 0, &bp, NULL); + if (error) + return error; + memset(bp->b_addr + - (offset - XFS_FSB_TO_B(mp, imap.br_startoff)), - 0, lastoffset - offset + 1); - XFS_BUF_UNDONE(bp); - XFS_BUF_UNREAD(bp); - XFS_BUF_WRITE(bp); + (offset - XFS_FSB_TO_B(mp, imap.br_startoff)), + 0, lastoffset - offset + 1); - error = xfs_buf_submit_wait(bp); - if (error) { - xfs_buf_ioerror_alert(bp, - "xfs_zero_remaining_bytes(write)"); - break; - } + error = xfs_bwrite(bp); + xfs_buf_relse(bp); + if (error) + return error; } - xfs_buf_free(bp); return error; } -- 2.0.0 From dave@fromorbit.com Thu Sep 25 07:34:49 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id F2DF47F9E for ; Thu, 25 Sep 2014 07:34:48 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id C4BFE304059 for ; Thu, 25 Sep 2014 05:34:48 -0700 (PDT) X-ASG-Debug-ID: 1411648485-04bdf003a0230ae0002-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id foB6ox3rnIyimH6H for ; Thu, 25 Sep 2014 05:34:47 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AoEXAIULJFR5LHimPGdsb2JhbABggw6BKoc4rnABAQEBAQEGnQ4XAQYBAQEBODmEBAEFJy8zCBgxOQMHFBmIPcMDhhKKKYQ1BYYmozeNESsvgkoBAQE Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 25 Sep 2014 22:04:26 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XX8Fb-0006nG-V9 for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:24 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XX8Fb-0007gt-U2 for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 08/11] xfs: kill xfs_bioerror_relse Date: Thu, 25 Sep 2014 22:34:18 +1000 X-ASG-Orig-Subj: [PATCH 08/11] xfs: kill xfs_bioerror_relse Message-Id: <1411648461-29003-9-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411648461-29003-1-git-send-email-david@fromorbit.com> References: <1411648461-29003-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411648486 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9862 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner There is only one caller now - xfs_trans_read_buf_map() - and it has very well defined call semantics - read, synchronous, and b_iodone is NULL. Hence it's pretty clear what error handling is necessary for this case. The bigger problem of untangling xfs_trans_read_buf_map error handling is left to a future patch. Signed-off-by: Dave Chinner --- fs/xfs/xfs_buf.c | 39 --------------------------------------- fs/xfs/xfs_buf.h | 2 -- fs/xfs/xfs_trans_buf.c | 9 ++++++--- 3 files changed, 6 insertions(+), 44 deletions(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index cc6a558..4696ff5 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1074,45 +1074,6 @@ xfs_buf_ioerror_alert( (__uint64_t)XFS_BUF_ADDR(bp), func, -bp->b_error, bp->b_length); } -/* - * Same as xfs_bioerror, except that we are releasing the buffer - * here ourselves, and avoiding the xfs_buf_ioend call. - * This is meant for userdata errors; metadata bufs come with - * iodone functions attached, so that we can track down errors. - */ -int -xfs_bioerror_relse( - struct xfs_buf *bp) -{ - int64_t fl = bp->b_flags; - /* - * No need to wait until the buffer is unpinned. - * We aren't flushing it. - * - * chunkhold expects B_DONE to be set, whether - * we actually finish the I/O or not. We don't want to - * change that interface. - */ - XFS_BUF_UNREAD(bp); - XFS_BUF_DONE(bp); - xfs_buf_stale(bp); - bp->b_iodone = NULL; - if (!(fl & XBF_ASYNC)) { - /* - * Mark b_error and B_ERROR _both_. - * Lot's of chunkcache code assumes that. - * There's no reason to mark error for - * ASYNC buffers. - */ - xfs_buf_ioerror(bp, -EIO); - complete(&bp->b_iowait); - } else { - xfs_buf_relse(bp); - } - - return -EIO; -} - int xfs_bwrite( struct xfs_buf *bp) diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index 44db8cd..d8f57f6 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -297,8 +297,6 @@ extern void xfs_buf_iomove(xfs_buf_t *, size_t, size_t, void *, #define xfs_buf_zero(bp, off, len) \ xfs_buf_iomove((bp), (off), (len), NULL, XBRW_ZERO) -extern int xfs_bioerror_relse(struct xfs_buf *); - /* Buffer Utility Routines */ extern xfs_caddr_t xfs_buf_offset(xfs_buf_t *, size_t); diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c index 96c898e..db4be5b 100644 --- a/fs/xfs/xfs_trans_buf.c +++ b/fs/xfs/xfs_trans_buf.c @@ -324,11 +324,14 @@ xfs_trans_read_buf_map( */ if (XFS_FORCED_SHUTDOWN(mp)) { trace_xfs_bdstrat_shut(bp, _RET_IP_); - xfs_bioerror_relse(bp); - } else { - xfs_buf_iorequest(bp); + bp->b_flags &= ~(XBF_READ | XBF_DONE); + xfs_buf_ioerror(bp, -EIO); + xfs_buf_stale(bp); + xfs_buf_relse(bp); + return -EIO; } + xfs_buf_iorequest(bp); error = xfs_buf_iowait(bp); if (error) { xfs_buf_ioerror_alert(bp, __func__); -- 2.0.0 From dave@fromorbit.com Thu Sep 25 07:34:48 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 61CF07F9F for ; Thu, 25 Sep 2014 07:34:48 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 00F95AC00A for ; Thu, 25 Sep 2014 05:34:47 -0700 (PDT) X-ASG-Debug-ID: 1411648485-04bdf003a0230ae0001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id t1DptmG3u0PjhAun for ; Thu, 25 Sep 2014 05:34:46 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AoEXAIULJFR5LHimPGdsb2JhbABggw6BKoc4rnABAQEBAQEGnQ4XAQYBAQEBODmEBAEFJy8zCBgxOQMHFBmIPcMDhhKKKYQ1BaldjRErL4EIJIEeAQEB Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 25 Sep 2014 22:04:25 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XX8Fb-0006nD-TZ for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XX8Fb-0007ge-SW for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 05/11] xfs: rework xfs_buf_bio_endio error handling Date: Thu, 25 Sep 2014 22:34:15 +1000 X-ASG-Orig-Subj: [PATCH 05/11] xfs: rework xfs_buf_bio_endio error handling Message-Id: <1411648461-29003-6-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411648461-29003-1-git-send-email-david@fromorbit.com> References: <1411648461-29003-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411648485 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9862 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner Currently the report of a bio error from completion immediately marks the buffer with an error. The issue is that this is racy w.r.t. synchronous IO - the submitter can see b_error being set before the IO is complete, and hence we cannot differentiate between submission failures and completion failures. Add an internal b_io_error field protected by the b_lock to catch IO completion errors, and only propagate that to the buffer during final IO completion handling. Hence we can tell in xfs_buf_iorequest if we've had a submission failure bey checking bp->b_error before dropping our b_io_remaining reference - that reference will prevent b_io_error values from being propagated to b_error in the event that completion races with submission. Signed-off-by: Dave Chinner --- fs/xfs/xfs_buf.c | 18 ++++++++++++++++-- fs/xfs/xfs_buf.h | 1 + 2 files changed, 17 insertions(+), 2 deletions(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 08f9fca..a8f4a39 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1008,6 +1008,13 @@ xfs_buf_ioend( bp->b_flags &= ~(XBF_READ | XBF_WRITE | XBF_READ_AHEAD); + /* + * Pull in IO completion errors now. We are guaranteed to be running + * single threaded, so we don't need the lock to read b_io_error. + */ + if (!bp->b_error && bp->b_io_error) + xfs_buf_ioerror(bp, bp->b_io_error); + /* Only validate buffers that were read without errors */ if (read && !bp->b_error && bp->b_ops) { ASSERT(!bp->b_iodone); @@ -1192,8 +1199,12 @@ xfs_buf_bio_end_io( * don't overwrite existing errors - otherwise we can lose errors on * buffers that require multiple bios to complete. */ - if (!bp->b_error) - xfs_buf_ioerror(bp, error); + if (error) { + spin_lock(&bp->b_lock); + if (!bp->b_io_error) + bp->b_io_error = error; + spin_unlock(&bp->b_lock); + } if (!bp->b_error && xfs_buf_is_vmapped(bp) && (bp->b_flags & XBF_READ)) invalidate_kernel_vmap_range(bp->b_addr, xfs_buf_vmap_len(bp)); @@ -1379,6 +1390,9 @@ xfs_buf_iorequest( if (bp->b_flags & XBF_WRITE) xfs_buf_wait_unpin(bp); + /* clear the internal error state to avoid spurious errors */ + bp->b_io_error = 0; + /* * Take references to the buffer. For XBF_ASYNC buffers, holding a * reference for as long as submission takes is all that is necessary diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index 4585c15..44db8cd 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -158,6 +158,7 @@ typedef struct xfs_buf { struct list_head b_lru; /* lru list */ spinlock_t b_lock; /* internal state lock */ unsigned int b_state; /* internal state flags */ + int b_io_error; /* internal IO error state */ wait_queue_head_t b_waiters; /* unpin waiters */ struct list_head b_list; struct xfs_perag *b_pag; /* contains rbtree root */ -- 2.0.0 From dave@fromorbit.com Thu Sep 25 07:34:50 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 024A67FAD for ; Thu, 25 Sep 2014 07:34:49 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id D8BF68F8039 for ; Thu, 25 Sep 2014 05:34:49 -0700 (PDT) X-ASG-Debug-ID: 1411648482-04cb6c50e51ff7b0005-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id 0JF4xtGR30htdU6T for ; Thu, 25 Sep 2014 05:34:48 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AoEXAIULJFR5LHimPGdsb2JhbABggw6BKoc4rnABAQEBAQEGnQ4XAQYBAQEBODmEBAEFJy8zCBgxOQMHFBmIPcMDhhKOXgWGJqM3jRErL4JKAQEB Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 25 Sep 2014 22:04:26 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XX8Fb-0006nF-Ug for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XX8Fb-0007go-TQ for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 07/11] xfs: xfs_bioerror can die. Date: Thu, 25 Sep 2014 22:34:17 +1000 X-ASG-Orig-Subj: [PATCH 07/11] xfs: xfs_bioerror can die. Message-Id: <1411648461-29003-8-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411648461-29003-1-git-send-email-david@fromorbit.com> References: <1411648461-29003-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411648487 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9861 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner Internal buffer write error handling is a mess due to the unnatural split between xfs_bioerror and xfs_bioerror_relse(). xfs_bwrite() only does sync IO and determines the handler to call based on b_iodone, so for this caller the only difference between xfs_bioerror() and xfs_bioerror_release() is the XBF_DONE flag. We don't care what the XBF_DONE flag state is because we stale the buffer in both paths - the next buffer lookup will clear XBF_DONE because XBF_STALE is set. Hence we can use common error handling for xfs_bwrite(). __xfs_buf_delwri_submit() is a similar - it's only ever called on writes - all sync or async - and again there's no reason to handle them any differently at all. Clean up the nasty error handling and remove xfs_bioerror(). Signed-off-by: Dave Chinner --- fs/xfs/xfs_buf.c | 58 ++++++++++++-------------------------------------------- 1 file changed, 12 insertions(+), 46 deletions(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 411111a..cc6a558 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1075,39 +1075,6 @@ xfs_buf_ioerror_alert( } /* - * Called when we want to stop a buffer from getting written or read. - * We attach the EIO error, muck with its flags, and call xfs_buf_ioend - * so that the proper iodone callbacks get called. - */ -STATIC int -xfs_bioerror( - xfs_buf_t *bp) -{ -#ifdef XFSERRORDEBUG - ASSERT(XFS_BUF_ISREAD(bp) || bp->b_iodone); -#endif - - /* - * No need to wait until the buffer is unpinned, we aren't flushing it. - */ - xfs_buf_ioerror(bp, -EIO); - - /* - * We're calling xfs_buf_ioend, so delete XBF_DONE flag. For - * sync IO, xfs_buf_ioend is going to remove a ref here. - */ - if (!(bp->b_flags & XBF_ASYNC)) - xfs_buf_hold(bp); - XFS_BUF_UNREAD(bp); - XFS_BUF_UNDONE(bp); - xfs_buf_stale(bp); - - xfs_buf_ioend(bp); - - return -EIO; -} - -/* * Same as xfs_bioerror, except that we are releasing the buffer * here ourselves, and avoiding the xfs_buf_ioend call. * This is meant for userdata errors; metadata bufs come with @@ -1155,19 +1122,19 @@ xfs_bwrite( ASSERT(xfs_buf_islocked(bp)); bp->b_flags |= XBF_WRITE; - bp->b_flags &= ~(XBF_ASYNC | XBF_READ | _XBF_DELWRI_Q | XBF_WRITE_FAIL); + bp->b_flags &= ~(XBF_ASYNC | XBF_READ | _XBF_DELWRI_Q | + XBF_WRITE_FAIL | XBF_DONE); if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { trace_xfs_bdstrat_shut(bp, _RET_IP_); - /* - * Metadata write that didn't get logged but written anyway. - * These aren't associated with a transaction, and can be - * ignored. - */ - if (!bp->b_iodone) - return xfs_bioerror_relse(bp); - return xfs_bioerror(bp); + xfs_buf_ioerror(bp, -EIO); + xfs_buf_stale(bp); + + /* sync IO, xfs_buf_ioend is going to remove a ref here */ + xfs_buf_hold(bp); + xfs_buf_ioend(bp); + return -EIO; } xfs_buf_iorequest(bp); @@ -1857,10 +1824,9 @@ __xfs_buf_delwri_submit( if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { trace_xfs_bdstrat_shut(bp, _RET_IP_); - if (!bp->b_iodone) - xfs_bioerror_relse(bp); - else - xfs_bioerror(bp); + xfs_buf_ioerror(bp, -EIO); + xfs_buf_stale(bp); + xfs_buf_ioend(bp); continue; } xfs_buf_iorequest(bp); -- 2.0.0 From dave@fromorbit.com Thu Sep 25 07:34:50 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id CE1207FA7 for ; Thu, 25 Sep 2014 07:34:49 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 5BCACAC003 for ; Thu, 25 Sep 2014 05:34:49 -0700 (PDT) X-ASG-Debug-ID: 1411648483-04cbb0730225ec90003-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id 5HtDNKE0xPjBHaIl for ; Thu, 25 Sep 2014 05:34:46 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AoEXAIULJFR5LHimPGdsb2JhbABggw6BKoc4rnABAQEBAQEGnQ4XAQYBAQEBODmEBAEFJy8zCBgxOQMHFBmIPcMDhhKOXgWGJqM3jRErL4EIJIEeAQEB Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 25 Sep 2014 22:04:25 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XX8Fb-0006nC-T6 for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XX8Fb-0007gZ-Rt for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 04/11] xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality Date: Thu, 25 Sep 2014 22:34:14 +1000 X-ASG-Orig-Subj: [PATCH 04/11] xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality Message-Id: <1411648461-29003-5-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411648461-29003-1-git-send-email-david@fromorbit.com> References: <1411648461-29003-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411648486 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9862 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner We do some work in xfs_buf_ioend, and some work in xfs_buf_iodone_work, but much of that functionality is the same. This work can all be done in a single function, leaving xfs_buf_iodone just a wrapper to determine if we should execute it by workqueue or directly. hence rename xfs_buf_iodone_work to xfs_buf_ioend(), and add a new xfs_buf_ioend_async() for places that need async processing. Signed-off-by: Dave Chinner --- fs/xfs/xfs_buf.c | 88 +++++++++++++++++++++--------------------------- fs/xfs/xfs_buf.h | 2 +- fs/xfs/xfs_buf_item.c | 4 +-- fs/xfs/xfs_inode.c | 2 +- fs/xfs/xfs_log.c | 2 +- fs/xfs/xfs_log_recover.c | 2 +- 6 files changed, 45 insertions(+), 55 deletions(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 5d8d2e1..08f9fca 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -998,26 +998,30 @@ xfs_buf_wait_unpin( * Buffer Utility Routines */ -STATIC void -xfs_buf_iodone_work( - struct work_struct *work) +void +xfs_buf_ioend( + struct xfs_buf *bp) { - struct xfs_buf *bp = - container_of(work, xfs_buf_t, b_iodone_work); - bool read = !!(bp->b_flags & XBF_READ); + bool read = bp->b_flags & XBF_READ; + + trace_xfs_buf_iodone(bp, _RET_IP_); bp->b_flags &= ~(XBF_READ | XBF_WRITE | XBF_READ_AHEAD); - /* only validate buffers that were read without errors */ - if (read && bp->b_ops && !bp->b_error && (bp->b_flags & XBF_DONE)) + /* Only validate buffers that were read without errors */ + if (read && !bp->b_error && bp->b_ops) { + ASSERT(!bp->b_iodone); bp->b_ops->verify_read(bp); + } + + if (!bp->b_error) + bp->b_flags |= XBF_DONE; if (bp->b_iodone) (*(bp->b_iodone))(bp); else if (bp->b_flags & XBF_ASYNC) xfs_buf_relse(bp); else { - ASSERT(read && bp->b_ops); complete(&bp->b_iowait); /* release the !XBF_ASYNC ref now we are done. */ @@ -1025,30 +1029,22 @@ xfs_buf_iodone_work( } } -void -xfs_buf_ioend( - struct xfs_buf *bp, - int schedule) +static void +xfs_buf_ioend_work( + struct work_struct *work) { - bool read = !!(bp->b_flags & XBF_READ); - - trace_xfs_buf_iodone(bp, _RET_IP_); + struct xfs_buf *bp = + container_of(work, xfs_buf_t, b_iodone_work); - if (bp->b_error == 0) - bp->b_flags |= XBF_DONE; + xfs_buf_ioend(bp); +} - if (bp->b_iodone || (read && bp->b_ops) || (bp->b_flags & XBF_ASYNC)) { - if (schedule) { - INIT_WORK(&bp->b_iodone_work, xfs_buf_iodone_work); - queue_work(xfslogd_workqueue, &bp->b_iodone_work); - } else { - xfs_buf_iodone_work(&bp->b_iodone_work); - } - } else { - bp->b_flags &= ~(XBF_READ | XBF_WRITE | XBF_READ_AHEAD); - complete(&bp->b_iowait); - xfs_buf_rele(bp); - } +void +xfs_buf_ioend_async( + struct xfs_buf *bp) +{ + INIT_WORK(&bp->b_iodone_work, xfs_buf_ioend_work); + queue_work(xfslogd_workqueue, &bp->b_iodone_work); } void @@ -1099,7 +1095,7 @@ xfs_bioerror( XFS_BUF_UNDONE(bp); xfs_buf_stale(bp); - xfs_buf_ioend(bp, 0); + xfs_buf_ioend(bp); return -EIO; } @@ -1186,15 +1182,6 @@ xfs_bwrite( } STATIC void -_xfs_buf_ioend( - xfs_buf_t *bp, - int schedule) -{ - if (atomic_dec_and_test(&bp->b_io_remaining) == 1) - xfs_buf_ioend(bp, schedule); -} - -STATIC void xfs_buf_bio_end_io( struct bio *bio, int error) @@ -1211,7 +1198,8 @@ xfs_buf_bio_end_io( if (!bp->b_error && xfs_buf_is_vmapped(bp) && (bp->b_flags & XBF_READ)) invalidate_kernel_vmap_range(bp->b_addr, xfs_buf_vmap_len(bp)); - _xfs_buf_ioend(bp, 1); + if (atomic_dec_and_test(&bp->b_io_remaining) == 1) + xfs_buf_ioend_async(bp); bio_put(bio); } @@ -1423,15 +1411,17 @@ xfs_buf_iorequest( /* * If _xfs_buf_ioapply failed or we are doing synchronous IO that * completes extremely quickly, we can get back here with only the IO - * reference we took above. _xfs_buf_ioend will drop it to zero. Run - * completion processing synchronously so that we don't return to the - * caller with completion still pending. This avoids unnecessary context - * switches associated with the end_io workqueue. + * reference we took above. If we drop it to zero, run completion + * processing synchronously so that we don't return to the caller with + * completion still pending. This avoids unnecessary context switches + * associated with the end_io workqueue. */ - if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) - _xfs_buf_ioend(bp, 0); - else - _xfs_buf_ioend(bp, 1); + if (atomic_dec_and_test(&bp->b_io_remaining) == 1) { + if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) + xfs_buf_ioend(bp); + else + xfs_buf_ioend_async(bp); + } xfs_buf_rele(bp); } diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index c753183..4585c15 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -286,7 +286,7 @@ extern void xfs_buf_unlock(xfs_buf_t *); /* Buffer Read and Write Routines */ extern int xfs_bwrite(struct xfs_buf *bp); -extern void xfs_buf_ioend(xfs_buf_t *, int); +extern void xfs_buf_ioend(struct xfs_buf *bp); extern void xfs_buf_ioerror(xfs_buf_t *, int); extern void xfs_buf_ioerror_alert(struct xfs_buf *, const char *func); extern void xfs_buf_iorequest(xfs_buf_t *); diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c index 30fa5db..3916384 100644 --- a/fs/xfs/xfs_buf_item.c +++ b/fs/xfs/xfs_buf_item.c @@ -491,7 +491,7 @@ xfs_buf_item_unpin( xfs_buf_ioerror(bp, -EIO); XFS_BUF_UNDONE(bp); xfs_buf_stale(bp); - xfs_buf_ioend(bp, 0); + xfs_buf_ioend(bp); } } @@ -1115,7 +1115,7 @@ do_callbacks: xfs_buf_do_callbacks(bp); bp->b_fspriv = NULL; bp->b_iodone = NULL; - xfs_buf_ioend(bp, 0); + xfs_buf_ioend(bp); } /* diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index c92cb48..e5bbc1f 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -3062,7 +3062,7 @@ cluster_corrupt_out: XFS_BUF_UNDONE(bp); xfs_buf_stale(bp); xfs_buf_ioerror(bp, -EIO); - xfs_buf_ioend(bp, 0); + xfs_buf_ioend(bp); } else { xfs_buf_stale(bp); xfs_buf_relse(bp); diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index a598955..b5170e5 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -1689,7 +1689,7 @@ xlog_bdstrat( if (iclog->ic_state & XLOG_STATE_IOERROR) { xfs_buf_ioerror(bp, -EIO); xfs_buf_stale(bp); - xfs_buf_ioend(bp, 0); + xfs_buf_ioend(bp); /* * It would seem logical to return EIO here, but we rely on * the log state machine to propagate I/O errors instead of diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 29e101f..02ad115 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -383,7 +383,7 @@ xlog_recover_iodone( SHUTDOWN_META_IO_ERROR); } bp->b_iodone = NULL; - xfs_buf_ioend(bp, 0); + xfs_buf_ioend(bp); } /* -- 2.0.0 From dave@fromorbit.com Thu Sep 25 07:34:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 73BFD7FB2 for ; Thu, 25 Sep 2014 07:34:50 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 4455B304059 for ; Thu, 25 Sep 2014 05:34:50 -0700 (PDT) X-ASG-Debug-ID: 1411648485-04bdf003a0230ae0003-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id u4NZLGkSNQAomsXw for ; Thu, 25 Sep 2014 05:34:48 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AoIXAIULJFR5LHimPGdsb2JhbABYCIMOgSqHOK5wAQEBAQEBBp0OFwEGAQEBATg5hAQBBScvMwgYMTkDBxQZiD3DA4YSiTaFKAWGJqM3jRErL4EGAh4EAoEeAQEB Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 25 Sep 2014 22:04:26 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XX8Fb-0006nJ-WC for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:24 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XX8Fb-0007h3-V6 for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 10/11] xfs: check xfs_buf_read_uncached returns correctly Date: Thu, 25 Sep 2014 22:34:20 +1000 X-ASG-Orig-Subj: [PATCH 10/11] xfs: check xfs_buf_read_uncached returns correctly Message-Id: <1411648461-29003-11-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411648461-29003-1-git-send-email-david@fromorbit.com> References: <1411648461-29003-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411648487 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9862 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner xfs_buf_read_uncached() has two failure modes. If can either return NULL or bp->b_error != 0 depending on the type of failure, and not all callers check for both. Fix it up. Signed-off-by: Dave Chinner --- fs/xfs/xfs_buf.c | 18 ++++++++++++---- fs/xfs/xfs_buf.h | 6 +++--- fs/xfs/xfs_fsops.c | 11 +++------- fs/xfs/xfs_mount.c | 58 +++++++++++++++++++++++++--------------------------- fs/xfs/xfs_rtalloc.c | 30 +++++++++++---------------- 5 files changed, 60 insertions(+), 63 deletions(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index d1d3fe6..0ac54a0 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -688,29 +688,39 @@ xfs_buf_readahead_map( * Read an uncached buffer from disk. Allocates and returns a locked * buffer containing the disk contents or nothing. */ -struct xfs_buf * +int xfs_buf_read_uncached( struct xfs_buftarg *target, xfs_daddr_t daddr, size_t numblks, int flags, + struct xfs_buf **bpp, const struct xfs_buf_ops *ops) { struct xfs_buf *bp; + *bpp = NULL; + bp = xfs_buf_get_uncached(target, numblks, flags); if (!bp) - return NULL; + return ENOMEM; /* set up the buffer for a read IO */ ASSERT(bp->b_map_count == 1); - bp->b_bn = daddr; + bp->b_bn = XFS_BUF_DADDR_NULL; /* always null for uncached buffers */ bp->b_maps[0].bm_bn = daddr; bp->b_flags |= XBF_READ; bp->b_ops = ops; xfs_buf_submit_wait(bp); - return bp; + if (bp->b_error) { + int error = bp->b_error; + xfs_buf_relse(bp); + return error; + } + + *bpp = bp; + return 0; } /* diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index 0acfc30..82002c0 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -269,9 +269,9 @@ int xfs_buf_associate_memory(struct xfs_buf *bp, void *mem, size_t length); struct xfs_buf *xfs_buf_get_uncached(struct xfs_buftarg *target, size_t numblks, int flags); -struct xfs_buf *xfs_buf_read_uncached(struct xfs_buftarg *target, - xfs_daddr_t daddr, size_t numblks, int flags, - const struct xfs_buf_ops *ops); +int xfs_buf_read_uncached(struct xfs_buftarg *target, xfs_daddr_t daddr, + size_t numblks, int flags, struct xfs_buf **bpp, + const struct xfs_buf_ops *ops); void xfs_buf_hold(struct xfs_buf *bp); /* Releasing Buffers */ diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index 126b4b3..ece69c2 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -172,16 +172,11 @@ xfs_growfs_data_private( if ((error = xfs_sb_validate_fsb_count(&mp->m_sb, nb))) return error; dpct = pct - mp->m_sb.sb_imax_pct; - bp = xfs_buf_read_uncached(mp->m_ddev_targp, + error = xfs_buf_read_uncached(mp->m_ddev_targp, XFS_FSB_TO_BB(mp, nb) - XFS_FSS_TO_BB(mp, 1), - XFS_FSS_TO_BB(mp, 1), 0, NULL); - if (!bp) - return -EIO; - if (bp->b_error) { - error = bp->b_error; - xfs_buf_relse(bp); + XFS_FSS_TO_BB(mp, 1), 0, &bp, NULL); + if (error) return error; - } xfs_buf_relse(bp); new = nb; /* use new as a temporary here */ diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index 78a2799..2adf6ce 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -300,21 +300,15 @@ xfs_readsb( * access to the superblock. */ reread: - bp = xfs_buf_read_uncached(mp->m_ddev_targp, XFS_SB_DADDR, - BTOBB(sector_size), 0, buf_ops); - if (!bp) { - if (loud) - xfs_warn(mp, "SB buffer read failed"); - return -EIO; - } - if (bp->b_error) { - error = bp->b_error; + error = xfs_buf_read_uncached(mp->m_ddev_targp, XFS_SB_DADDR, + BTOBB(sector_size), 0, &bp, buf_ops); + if (error) { if (loud) xfs_warn(mp, "SB validate failed with error %d.", error); /* bad CRC means corrupted metadata */ if (error == -EFSBADCRC) error = -EFSCORRUPTED; - goto release_buf; + return error; } /* @@ -366,7 +360,8 @@ reread: return 0; release_buf: - xfs_buf_relse(bp); + if (bp) + xfs_buf_relse(bp); return error; } @@ -544,40 +539,43 @@ xfs_set_inoalignment(xfs_mount_t *mp) * Check that the data (and log if separate) is an ok size. */ STATIC int -xfs_check_sizes(xfs_mount_t *mp) +xfs_check_sizes( + struct xfs_mount *mp) { - xfs_buf_t *bp; + struct xfs_buf *bp; xfs_daddr_t d; + int error; d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks); if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_dblocks) { xfs_warn(mp, "filesystem size mismatch detected"); return -EFBIG; } - bp = xfs_buf_read_uncached(mp->m_ddev_targp, + error = xfs_buf_read_uncached(mp->m_ddev_targp, d - XFS_FSS_TO_BB(mp, 1), - XFS_FSS_TO_BB(mp, 1), 0, NULL); - if (!bp) { + XFS_FSS_TO_BB(mp, 1), 0, &bp, NULL); + if (error) { xfs_warn(mp, "last sector read failed"); - return -EIO; + return error; } xfs_buf_relse(bp); - if (mp->m_logdev_targp != mp->m_ddev_targp) { - d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks); - if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_logblocks) { - xfs_warn(mp, "log size mismatch detected"); - return -EFBIG; - } - bp = xfs_buf_read_uncached(mp->m_logdev_targp, + if (mp->m_logdev_targp == mp->m_ddev_targp) + return 0; + + d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks); + if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_logblocks) { + xfs_warn(mp, "log size mismatch detected"); + return -EFBIG; + } + error = xfs_buf_read_uncached(mp->m_logdev_targp, d - XFS_FSB_TO_BB(mp, 1), - XFS_FSB_TO_BB(mp, 1), 0, NULL); - if (!bp) { - xfs_warn(mp, "log device read failed"); - return -EIO; - } - xfs_buf_relse(bp); + XFS_FSB_TO_BB(mp, 1), 0, &bp, NULL); + if (error) { + xfs_warn(mp, "log device read failed"); + return error; } + xfs_buf_relse(bp); return 0; } diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c index d45aebe..e1175ea 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -921,16 +921,11 @@ xfs_growfs_rt( /* * Read in the last block of the device, make sure it exists. */ - bp = xfs_buf_read_uncached(mp->m_rtdev_targp, + error = xfs_buf_read_uncached(mp->m_rtdev_targp, XFS_FSB_TO_BB(mp, nrblocks - 1), - XFS_FSB_TO_BB(mp, 1), 0, NULL); - if (!bp) - return -EIO; - if (bp->b_error) { - error = bp->b_error; - xfs_buf_relse(bp); + XFS_FSB_TO_BB(mp, 1), 0, &bp, NULL); + if (error) return error; - } xfs_buf_relse(bp); /* @@ -1184,11 +1179,12 @@ xfs_rtallocate_extent( */ int /* error */ xfs_rtmount_init( - xfs_mount_t *mp) /* file system mount structure */ + struct xfs_mount *mp) /* file system mount structure */ { - xfs_buf_t *bp; /* buffer for last block of subvolume */ - xfs_daddr_t d; /* address of last block of subvolume */ - xfs_sb_t *sbp; /* filesystem superblock copy in mount */ + struct xfs_buf *bp; /* buffer for last block of subvolume */ + struct xfs_sb *sbp; /* filesystem superblock copy in mount */ + xfs_daddr_t d; /* address of last block of subvolume */ + int error; sbp = &mp->m_sb; if (sbp->sb_rblocks == 0) @@ -1214,14 +1210,12 @@ xfs_rtmount_init( (unsigned long long) mp->m_sb.sb_rblocks); return -EFBIG; } - bp = xfs_buf_read_uncached(mp->m_rtdev_targp, + error = xfs_buf_read_uncached(mp->m_rtdev_targp, d - XFS_FSB_TO_BB(mp, 1), - XFS_FSB_TO_BB(mp, 1), 0, NULL); - if (!bp || bp->b_error) { + XFS_FSB_TO_BB(mp, 1), 0, &bp, NULL); + if (error) { xfs_warn(mp, "realtime device size check failed"); - if (bp) - xfs_buf_relse(bp); - return -EIO; + return error; } xfs_buf_relse(bp); return 0; -- 2.0.0 From dave@fromorbit.com Thu Sep 25 07:34:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8F24C7FAD for ; Thu, 25 Sep 2014 07:34:51 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6F8518F8035 for ; Thu, 25 Sep 2014 05:34:51 -0700 (PDT) X-ASG-Debug-ID: 1411648483-04cbb0730225ec90004-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id cwp9ZMbRyhZerw88 for ; Thu, 25 Sep 2014 05:34:48 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AoIXAIULJFR5LHimPGdsb2JhbABggw6BKoc4rnABAQEBAQEGnQ4XAQYBAQEBODmEBAEFJy8zCBgxOQMHFBAJiD3DA4YShBiKRgWGJqM3jRErL4JKAQEB Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 25 Sep 2014 22:04:26 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XX8Fb-0006nH-Vp for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:24 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XX8Fb-0007gy-UY for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:34:23 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 09/11] xfs: introduce xfs_buf_submit[_wait] Date: Thu, 25 Sep 2014 22:34:19 +1000 X-ASG-Orig-Subj: [PATCH 09/11] xfs: introduce xfs_buf_submit[_wait] Message-Id: <1411648461-29003-10-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411648461-29003-1-git-send-email-david@fromorbit.com> References: <1411648461-29003-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411648488 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9862 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner There is a lot of cookie-cutter code that looks like: if (shutdown) handle buffer error xfs_buf_iorequest(bp) error = xfs_buf_iowait(bp) if (error) handle buffer error spread through XFS. There's significant complexity now in xfs_buf_iorequest() to specifically handle this sort of synchronous IO pattern, but there's all sorts of nasty surprises in different error handling code dependent on who owns the buffer references and the locks. Pull this pattern into a single helper, where we can hide all the synchronous IO warts and hence make the error handling for all the callers much saner. This removes the need for a special extra reference to protect IO completion processing, as we can now hold a single reference across dispatch and waiting, simplifying the sync IO smeantics and error handling. In doing this, also rename xfs_buf_iorequest to xfs_buf_submit and make it explicitly handle on asynchronous IO. This forces all users to be switched specifically to one interface or the other and removes any ambiguity between how the interfaces are to be used. It also means that xfs_buf_iowait() goes away. For the special case of delwri buffer submission and waiting, we don't need to issue IO synchronously at all. The second pass to cal xfs_buf_iowait() can now just block on xfs_buf_lock() - the buffer will be unlocked when the async IO is complete. This formalises a sane the method of waiting for async IO - take an extra reference, submit the IO, call xfs_buf_lock() when you want to wait for IO completion. i.e.: bp = xfs_buf_find(); xfs_buf_hold(bp); bp->b_flags |= XBF_ASYNC; xfs_buf_iosubmit(bp); xfs_buf_lock(bp) error = bp->b_error; .... xfs_buf_relse(bp); Signed-off-by: Dave Chinner --- fs/xfs/xfs_bmap_util.c | 14 +--- fs/xfs/xfs_buf.c | 169 ++++++++++++++++++++++++++--------------------- fs/xfs/xfs_buf.h | 4 +- fs/xfs/xfs_buf_item.c | 4 +- fs/xfs/xfs_log.c | 2 +- fs/xfs/xfs_log_recover.c | 30 ++++----- fs/xfs/xfs_trace.h | 3 +- fs/xfs/xfs_trans_buf.c | 19 +----- 8 files changed, 117 insertions(+), 128 deletions(-) diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index d8b77b5..41d9488 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1157,12 +1157,7 @@ xfs_zero_remaining_bytes( XFS_BUF_READ(bp); XFS_BUF_SET_ADDR(bp, xfs_fsb_to_db(ip, imap.br_startblock)); - if (XFS_FORCED_SHUTDOWN(mp)) { - error = -EIO; - break; - } - xfs_buf_iorequest(bp); - error = xfs_buf_iowait(bp); + error = xfs_buf_submit_wait(bp); if (error) { xfs_buf_ioerror_alert(bp, "xfs_zero_remaining_bytes(read)"); @@ -1175,12 +1170,7 @@ xfs_zero_remaining_bytes( XFS_BUF_UNREAD(bp); XFS_BUF_WRITE(bp); - if (XFS_FORCED_SHUTDOWN(mp)) { - error = -EIO; - break; - } - xfs_buf_iorequest(bp); - error = xfs_buf_iowait(bp); + error = xfs_buf_submit_wait(bp); if (error) { xfs_buf_ioerror_alert(bp, "xfs_zero_remaining_bytes(write)"); diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 4696ff5..d1d3fe6 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -623,10 +623,11 @@ _xfs_buf_read( bp->b_flags &= ~(XBF_WRITE | XBF_ASYNC | XBF_READ_AHEAD); bp->b_flags |= flags & (XBF_READ | XBF_ASYNC | XBF_READ_AHEAD); - xfs_buf_iorequest(bp); - if (flags & XBF_ASYNC) + if (flags & XBF_ASYNC) { + xfs_buf_submit(bp); return 0; - return xfs_buf_iowait(bp); + } + return xfs_buf_submit_wait(bp); } xfs_buf_t * @@ -708,12 +709,7 @@ xfs_buf_read_uncached( bp->b_flags |= XBF_READ; bp->b_ops = ops; - if (XFS_FORCED_SHUTDOWN(target->bt_mount)) { - xfs_buf_relse(bp); - return NULL; - } - xfs_buf_iorequest(bp); - xfs_buf_iowait(bp); + xfs_buf_submit_wait(bp); return bp; } @@ -1028,12 +1024,8 @@ xfs_buf_ioend( (*(bp->b_iodone))(bp); else if (bp->b_flags & XBF_ASYNC) xfs_buf_relse(bp); - else { + else complete(&bp->b_iowait); - - /* release the !XBF_ASYNC ref now we are done. */ - xfs_buf_rele(bp); - } } static void @@ -1086,21 +1078,7 @@ xfs_bwrite( bp->b_flags &= ~(XBF_ASYNC | XBF_READ | _XBF_DELWRI_Q | XBF_WRITE_FAIL | XBF_DONE); - if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { - trace_xfs_bdstrat_shut(bp, _RET_IP_); - - xfs_buf_ioerror(bp, -EIO); - xfs_buf_stale(bp); - - /* sync IO, xfs_buf_ioend is going to remove a ref here */ - xfs_buf_hold(bp); - xfs_buf_ioend(bp); - return -EIO; - } - - xfs_buf_iorequest(bp); - - error = xfs_buf_iowait(bp); + error = xfs_buf_submit_wait(bp); if (error) { xfs_force_shutdown(bp->b_target->bt_mount, SHUTDOWN_META_IO_ERROR); @@ -1209,7 +1187,7 @@ next_chunk: } else { /* * This is guaranteed not to be the last io reference count - * because the caller (xfs_buf_iorequest) holds a count itself. + * because the caller (xfs_buf_submit) holds a count itself. */ atomic_dec(&bp->b_io_remaining); xfs_buf_ioerror(bp, -EIO); @@ -1299,13 +1277,29 @@ _xfs_buf_ioapply( blk_finish_plug(&plug); } +/* + * Asynchronous IO submission path. This transfers the buffer lock ownership and + * the current reference to the IO. It is not safe to reference the buffer after + * a call to this function unless the caller holds an additional reference + * itself. + */ void -xfs_buf_iorequest( - xfs_buf_t *bp) +xfs_buf_submit( + struct xfs_buf *bp) { - trace_xfs_buf_iorequest(bp, _RET_IP_); + trace_xfs_buf_submit(bp, _RET_IP_); ASSERT(!(bp->b_flags & _XBF_DELWRI_Q)); + ASSERT(bp->b_flags & XBF_ASYNC); + + /* on shutdown we stale and complete the buffer immediately */ + if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { + xfs_buf_ioerror(bp, -EIO); + bp->b_flags &= ~XBF_DONE; + xfs_buf_stale(bp); + xfs_buf_ioend(bp); + return; + } if (bp->b_flags & XBF_WRITE) xfs_buf_wait_unpin(bp); @@ -1314,25 +1308,14 @@ xfs_buf_iorequest( bp->b_io_error = 0; /* - * Take references to the buffer. For XBF_ASYNC buffers, holding a - * reference for as long as submission takes is all that is necessary - * here. The IO inherits the lock and hold count from the submitter, - * and these are release during IO completion processing. Taking a hold - * over submission ensures that the buffer is not freed until we have - * completed all processing, regardless of when IO errors occur or are - * reported. - * - * However, for synchronous IO, the IO does not inherit the submitters - * reference count, nor the buffer lock. Hence we need to take an extra - * reference to the buffer for the for the IO context so that we can - * guarantee the buffer is not freed until all IO completion processing - * is done. Otherwise the caller can drop their reference while the IO - * is still in progress and hence trigger a use-after-free situation. + * The caller's reference is released during I/O completion. + * This occurs some time after the last b_io_remaining reference is + * released, so after we drop our Io reference we have to have some + * other reference to ensure the buffer doesn't go away from underneath + * us. Take a direct reference to ensure we have safe access to the + * buffer until we are finished with it. */ xfs_buf_hold(bp); - if (!(bp->b_flags & XBF_ASYNC)) - xfs_buf_hold(bp); - /* * Set the count to 1 initially, this will stop an I/O completion @@ -1343,40 +1326,82 @@ xfs_buf_iorequest( _xfs_buf_ioapply(bp); /* - * If _xfs_buf_ioapply failed or we are doing synchronous IO that - * completes extremely quickly, we can get back here with only the IO - * reference we took above. If we drop it to zero, run completion - * processing synchronously so that we don't return to the caller with - * completion still pending. This avoids unnecessary context switches - * associated with the end_io workqueue. + * If _xfs_buf_ioapply failed, we can get back here with only the IO + * reference we took above. If we drop it to zero, run completion so + * that we don't return to the caller with completion still pending. */ if (atomic_dec_and_test(&bp->b_io_remaining) == 1) { - if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) + if (bp->b_error) xfs_buf_ioend(bp); else xfs_buf_ioend_async(bp); } xfs_buf_rele(bp); + /* Note: it is not safe to reference bp now we've dropped our ref */ } /* - * Waits for I/O to complete on the buffer supplied. It returns immediately if - * no I/O is pending or there is already a pending error on the buffer, in which - * case nothing will ever complete. It returns the I/O error code, if any, or - * 0 if there was no error. + * Synchronous buffer IO submission path, read or write. */ int -xfs_buf_iowait( - xfs_buf_t *bp) +xfs_buf_submit_wait( + struct xfs_buf *bp) { - trace_xfs_buf_iowait(bp, _RET_IP_); + int error; - if (!bp->b_error) - wait_for_completion(&bp->b_iowait); + trace_xfs_buf_submit_wait(bp, _RET_IP_); + + ASSERT(!(bp->b_flags & (_XBF_DELWRI_Q | XBF_ASYNC))); + if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { + xfs_buf_ioerror(bp, -EIO); + xfs_buf_stale(bp); + bp->b_flags &= ~XBF_DONE; + return -EIO; + } + + if (bp->b_flags & XBF_WRITE) + xfs_buf_wait_unpin(bp); + + /* clear the internal error state to avoid spurious errors */ + bp->b_io_error = 0; + + /* + * For synchronous IO, the IO does not inherit the submitters reference + * count, nor the buffer lock. Hence we cannot release the reference we + * are about to take until we've waited for all IO completion to occur, + * including any xfs_buf_ioend_async() work that may be pending. + */ + xfs_buf_hold(bp); + + /* + * Set the count to 1 initially, this will stop an I/O completion + * callout which happens before we have started all the I/O from calling + * xfs_buf_ioend too early. + */ + atomic_set(&bp->b_io_remaining, 1); + _xfs_buf_ioapply(bp); + + /* + * make sure we run completion synchronously if it raced with us and is + * already complete. + */ + if (atomic_dec_and_test(&bp->b_io_remaining) == 1) + xfs_buf_ioend(bp); + + /* wait for completion before gathering the error from the buffer */ + trace_xfs_buf_iowait(bp, _RET_IP_); + wait_for_completion(&bp->b_iowait); trace_xfs_buf_iowait_done(bp, _RET_IP_); - return bp->b_error; + error = bp->b_error; + + /* + * all done now, we can release the hold that keeps the buffer + * referenced for the entire IO. + */ + xfs_buf_rele(bp); + return error; } xfs_caddr_t @@ -1782,15 +1807,7 @@ __xfs_buf_delwri_submit( else list_del_init(&bp->b_list); - if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { - trace_xfs_bdstrat_shut(bp, _RET_IP_); - - xfs_buf_ioerror(bp, -EIO); - xfs_buf_stale(bp); - xfs_buf_ioend(bp); - continue; - } - xfs_buf_iorequest(bp); + xfs_buf_submit(bp); } blk_finish_plug(&plug); diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index d8f57f6..0acfc30 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -290,8 +290,8 @@ extern int xfs_bwrite(struct xfs_buf *bp); extern void xfs_buf_ioend(struct xfs_buf *bp); extern void xfs_buf_ioerror(xfs_buf_t *, int); extern void xfs_buf_ioerror_alert(struct xfs_buf *, const char *func); -extern void xfs_buf_iorequest(xfs_buf_t *); -extern int xfs_buf_iowait(xfs_buf_t *); +extern void xfs_buf_submit(struct xfs_buf *bp); +extern int xfs_buf_submit_wait(struct xfs_buf *bp); extern void xfs_buf_iomove(xfs_buf_t *, size_t, size_t, void *, xfs_buf_rw_t); #define xfs_buf_zero(bp, off, len) \ diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c index 3916384..f159695 100644 --- a/fs/xfs/xfs_buf_item.c +++ b/fs/xfs/xfs_buf_item.c @@ -1081,7 +1081,7 @@ xfs_buf_iodone_callbacks( * a way to shut the filesystem down if the writes keep failing. * * In practice we'll shut the filesystem down soon as non-transient - * erorrs tend to affect the whole device and a failing log write + * errors tend to affect the whole device and a failing log write * will make us give up. But we really ought to do better here. */ if (XFS_BUF_ISASYNC(bp)) { @@ -1094,7 +1094,7 @@ xfs_buf_iodone_callbacks( if (!(bp->b_flags & (XBF_STALE|XBF_WRITE_FAIL))) { bp->b_flags |= XBF_WRITE | XBF_ASYNC | XBF_DONE | XBF_WRITE_FAIL; - xfs_buf_iorequest(bp); + xfs_buf_submit(bp); } else { xfs_buf_relse(bp); } diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index b5170e5..ed4845f 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -1699,7 +1699,7 @@ xlog_bdstrat( return 0; } - xfs_buf_iorequest(bp); + xfs_buf_submit(bp); return 0; } diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 02ad115..c6427b3 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -193,12 +193,8 @@ xlog_bread_noalign( bp->b_io_length = nbblks; bp->b_error = 0; - if (XFS_FORCED_SHUTDOWN(log->l_mp)) - return -EIO; - - xfs_buf_iorequest(bp); - error = xfs_buf_iowait(bp); - if (error) + error = xfs_buf_submit_wait(bp); + if (error && !XFS_FORCED_SHUTDOWN(log->l_mp)) xfs_buf_ioerror_alert(bp, __func__); return error; } @@ -378,9 +374,11 @@ xlog_recover_iodone( * We're not going to bother about retrying * this during recovery. One strike! */ - xfs_buf_ioerror_alert(bp, __func__); - xfs_force_shutdown(bp->b_target->bt_mount, - SHUTDOWN_META_IO_ERROR); + if (!XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { + xfs_buf_ioerror_alert(bp, __func__); + xfs_force_shutdown(bp->b_target->bt_mount, + SHUTDOWN_META_IO_ERROR); + } } bp->b_iodone = NULL; xfs_buf_ioend(bp); @@ -4400,16 +4398,12 @@ xlog_do_recover( XFS_BUF_UNASYNC(bp); bp->b_ops = &xfs_sb_buf_ops; - if (XFS_FORCED_SHUTDOWN(log->l_mp)) { - xfs_buf_relse(bp); - return -EIO; - } - - xfs_buf_iorequest(bp); - error = xfs_buf_iowait(bp); + error = xfs_buf_submit_wait(bp); if (error) { - xfs_buf_ioerror_alert(bp, __func__); - ASSERT(0); + if (!XFS_FORCED_SHUTDOWN(log->l_mp)) { + xfs_buf_ioerror_alert(bp, __func__); + ASSERT(0); + } xfs_buf_relse(bp); return error; } diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h index 152f827..51372e3 100644 --- a/fs/xfs/xfs_trace.h +++ b/fs/xfs/xfs_trace.h @@ -349,7 +349,8 @@ DEFINE_BUF_EVENT(xfs_buf_free); DEFINE_BUF_EVENT(xfs_buf_hold); DEFINE_BUF_EVENT(xfs_buf_rele); DEFINE_BUF_EVENT(xfs_buf_iodone); -DEFINE_BUF_EVENT(xfs_buf_iorequest); +DEFINE_BUF_EVENT(xfs_buf_submit); +DEFINE_BUF_EVENT(xfs_buf_submit_wait); DEFINE_BUF_EVENT(xfs_buf_bawrite); DEFINE_BUF_EVENT(xfs_buf_lock); DEFINE_BUF_EVENT(xfs_buf_lock_done); diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c index db4be5b..e2b2216 100644 --- a/fs/xfs/xfs_trans_buf.c +++ b/fs/xfs/xfs_trans_buf.c @@ -318,23 +318,10 @@ xfs_trans_read_buf_map( XFS_BUF_READ(bp); bp->b_ops = ops; - /* - * XXX(hch): clean up the error handling here to be less - * of a mess.. - */ - if (XFS_FORCED_SHUTDOWN(mp)) { - trace_xfs_bdstrat_shut(bp, _RET_IP_); - bp->b_flags &= ~(XBF_READ | XBF_DONE); - xfs_buf_ioerror(bp, -EIO); - xfs_buf_stale(bp); - xfs_buf_relse(bp); - return -EIO; - } - - xfs_buf_iorequest(bp); - error = xfs_buf_iowait(bp); + error = xfs_buf_submit_wait(bp); if (error) { - xfs_buf_ioerror_alert(bp, __func__); + if (!XFS_FORCED_SHUTDOWN(mp)) + xfs_buf_ioerror_alert(bp, __func__); xfs_buf_relse(bp); /* * We can gracefully recover from most read -- 2.0.0 From jack@suse.cz Thu Sep 25 07:42:07 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 2EB1B7F9F for ; Thu, 25 Sep 2014 07:42:07 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 1AE4F304032 for ; Thu, 25 Sep 2014 05:42:07 -0700 (PDT) X-ASG-Debug-ID: 1411648924-04cbb07302263950001-NocioJ Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id wWi1DYn44skjW1eM (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 25 Sep 2014 05:42:05 -0700 (PDT) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 750F2AB1E; Thu, 25 Sep 2014 12:42:04 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id 091D981FA9; Thu, 25 Sep 2014 14:42:03 +0200 (CEST) From: Jan Kara To: linux-fsdevel@vger.kernel.org Cc: linux-ext4@vger.kernel.org, xfs@oss.sgi.com, Dave Chinner , Ted Tso , Jan Kara Subject: [PATCH 0/2 v2] Fix data corruption when blocksize < pagesize for mmapped data Date: Thu, 25 Sep 2014 14:41:54 +0200 X-ASG-Orig-Subj: [PATCH 0/2 v2] Fix data corruption when blocksize < pagesize for mmapped data Message-Id: <1411648916-16773-1-git-send-email-jack@suse.cz> X-Mailer: git-send-email 1.8.1.4 X-Barracuda-Connect: cantor2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1411648925 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9862 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header Hello, this is a second version of the patches to fix data corruption in mmapped data when blocksize < pagesize as tested by xfstests generic/030 test. The patchset fixes XFS and ext4. I've checked and btrfs doesn't need fixing because it doesn't support blocksize < pagesize. If that's ever going to change btrfs will likely need a similar treatment. ocfs2, ext2, ext3 are OK since they happily allocate blocks during writeback. For other filesystems like gfs2, ubifs, nilfs, ceph,... I'm not sure whether they support blocksize < pagesize at all. Interesting is also NFS which may care but I don't understand its ->page_mkwrite() handler good enough to judge. Changes since v1: - changed helper function name and moved it to mm/truncate.c - I originally thought we can make the helper function update i_size to simplify the interface but it's actually impossible due to generic_write_end() lock ordering constraints. - used round_up() instead of ALIGN() - taught truncate_setsize() to use the helper function Honza From jack@suse.cz Thu Sep 25 07:42:07 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9C4E47F9F for ; Thu, 25 Sep 2014 07:42:07 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 7C384304051 for ; Thu, 25 Sep 2014 05:42:07 -0700 (PDT) X-ASG-Debug-ID: 1411648924-04bdf0039f230f20001-NocioJ Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id bQPGLqwLdj6Hbz84 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 25 Sep 2014 05:42:05 -0700 (PDT) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 8F89DACA0; Thu, 25 Sep 2014 12:42:04 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id 0F7B881F97; Thu, 25 Sep 2014 14:42:03 +0200 (CEST) From: Jan Kara To: linux-fsdevel@vger.kernel.org Cc: linux-ext4@vger.kernel.org, xfs@oss.sgi.com, Dave Chinner , Ted Tso , Jan Kara Subject: [PATCH 2/2] ext4: Fix mmap data corruption when blocksize < pagesize Date: Thu, 25 Sep 2014 14:41:56 +0200 X-ASG-Orig-Subj: [PATCH 2/2] ext4: Fix mmap data corruption when blocksize < pagesize Message-Id: <1411648916-16773-3-git-send-email-jack@suse.cz> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1411648916-16773-1-git-send-email-jack@suse.cz> References: <1411648916-16773-1-git-send-email-jack@suse.cz> X-Barracuda-Connect: cantor2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1411648925 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9862 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header Use truncate_isize_extended() when hole is being created in a file so that ->page_mkwrite() will get called for the partial tail page if it is mmaped (see the first patch in the series for details). Signed-off-by: Jan Kara --- fs/ext4/inode.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 3aa26e9117c4..9e269489e094 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4536,8 +4536,12 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr) ext4_orphan_del(NULL, inode); goto err_out; } - } else + } else { + loff_t oldsize = inode->i_size; + i_size_write(inode, attr->ia_size); + pagecache_isize_extended(inode, oldsize, inode->i_size); + } /* * Blocks are going to be removed from the inode. Wait -- 1.8.1.4 From jack@suse.cz Thu Sep 25 07:42:08 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 12C0C7F9F for ; Thu, 25 Sep 2014 07:42:08 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id C97DC304051 for ; Thu, 25 Sep 2014 05:42:07 -0700 (PDT) X-ASG-Debug-ID: 1411648924-04bdf003a1230f30001-NocioJ Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id 1sVCN7Vw3btZVcCp (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 25 Sep 2014 05:42:06 -0700 (PDT) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 9967EACD2; Thu, 25 Sep 2014 12:42:04 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id 0D8F480BAA; Thu, 25 Sep 2014 14:42:03 +0200 (CEST) From: Jan Kara To: linux-fsdevel@vger.kernel.org Cc: linux-ext4@vger.kernel.org, xfs@oss.sgi.com, Dave Chinner , Ted Tso , Jan Kara Subject: [PATCH 1/2] vfs: Fix data corruption when blocksize < pagesize for mmaped data Date: Thu, 25 Sep 2014 14:41:55 +0200 X-ASG-Orig-Subj: [PATCH 1/2] vfs: Fix data corruption when blocksize < pagesize for mmaped data Message-Id: <1411648916-16773-2-git-send-email-jack@suse.cz> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1411648916-16773-1-git-send-email-jack@suse.cz> References: <1411648916-16773-1-git-send-email-jack@suse.cz> X-Barracuda-Connect: cantor2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1411648925 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9862 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header ->page_mkwrite() is used by filesystems to allocate blocks under a page which is becoming writeably mmapped in some process' address space. This allows a filesystem to return a page fault if there is not enough space available, user exceeds quota or similar problem happens, rather than silently discarding data later when writepage is called. However VFS fails to call ->page_mkwrite() in all the cases where filesystems need it when blocksize < pagesize. For example when blocksize = 1024, pagesize = 4096 the following is problematic: ftruncate(fd, 0); pwrite(fd, buf, 1024, 0); map = mmap(NULL, 1024, PROT_WRITE, MAP_SHARED, fd, 0); map[0] = 'a'; ----> page_mkwrite() for index 0 is called ftruncate(fd, 10000); /* or even pwrite(fd, buf, 1, 10000) */ mremap(map, 1024, 10000, 0); map[4095] = 'a'; ----> no page_mkwrite() called At the moment ->page_mkwrite() is called, filesystem can allocate only one block for the page because i_size == 1024. Otherwise it would create blocks beyond i_size which is generally undesirable. But later at ->writepage() time, we also need to store data at offset 4095 but we don't have block allocated for it. This patch introduces a helper function filesystems can use to have ->page_mkwrite() called at all the necessary moments. Signed-off-by: Jan Kara --- fs/buffer.c | 3 +++ include/linux/mm.h | 8 ++++++++ mm/truncate.c | 57 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 68 insertions(+) diff --git a/fs/buffer.c b/fs/buffer.c index 8f05111bbb8b..3ba5a6a1bc5f 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -2080,6 +2080,7 @@ int generic_write_end(struct file *file, struct address_space *mapping, struct page *page, void *fsdata) { struct inode *inode = mapping->host; + loff_t old_size = inode->i_size; int i_size_changed = 0; copied = block_write_end(file, mapping, pos, len, copied, page, fsdata); @@ -2099,6 +2100,8 @@ int generic_write_end(struct file *file, struct address_space *mapping, unlock_page(page); page_cache_release(page); + if (old_size < pos) + pagecache_isize_extended(inode, old_size, pos); /* * Don't mark the inode dirty under page lock. First, it unnecessarily * makes the holding time of page lock longer. Second, it forces lock diff --git a/include/linux/mm.h b/include/linux/mm.h index 8981cc882ed2..f0e53e5a3b17 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1155,6 +1155,14 @@ static inline void unmap_shared_mapping_range(struct address_space *mapping, extern void truncate_pagecache(struct inode *inode, loff_t new); extern void truncate_setsize(struct inode *inode, loff_t newsize); +#ifdef CONFIG_MMU +void pagecache_isize_extended(struct inode *inode, loff_t from, loff_t to); +#else +static inline void pagecache_isize_extended(struct inode *inode, loff_t from, + loff_t to) +{ +} +#endif void truncate_pagecache_range(struct inode *inode, loff_t offset, loff_t end); int truncate_inode_page(struct address_space *mapping, struct page *page); int generic_error_remove_page(struct address_space *mapping, struct page *page); diff --git a/mm/truncate.c b/mm/truncate.c index 96d167372d89..261eaf6e5a19 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -20,6 +20,7 @@ #include /* grr. try_to_release_page, do_invalidatepage */ #include +#include #include "internal.h" static void clear_exceptional_entry(struct address_space *mapping, @@ -719,12 +720,68 @@ EXPORT_SYMBOL(truncate_pagecache); */ void truncate_setsize(struct inode *inode, loff_t newsize) { + loff_t oldsize = inode->i_size; + i_size_write(inode, newsize); + if (newsize > oldsize) + pagecache_isize_extended(inode, oldsize, newsize); truncate_pagecache(inode, newsize); } EXPORT_SYMBOL(truncate_setsize); /** + * pagecache_isize_extended - update pagecache after extension of i_size + * @inode: inode for which i_size was extended + * @from: original inode size + * @to: new inode size + * + * Handle extension of inode size either caused by extending truncate or by + * write starting after current i_size. We mark the page straddling current + * i_size RO so that page_mkwrite() is called on the nearest write access to + * the page. This way filesystem can be sure that page_mkwrite() is called on + * the page before user writes to the page via mmap after the i_size has been + * changed. + * + * The function must be called after i_size is updated so that page fault + * coming after we unlock the page will already see the new i_size. + * The function must be called while we still hold i_mutex - this not only + * makes sure i_size is stable but also that userspace cannot observe new + * i_size value before we are prepared to store mmap writes at new inode size. + */ +void pagecache_isize_extended(struct inode *inode, loff_t from, loff_t to) +{ + int bsize = 1 << inode->i_blkbits; + loff_t rounded_from; + struct page *page; + pgoff_t index; + + WARN_ON(!mutex_is_locked(&inode->i_mutex)); + WARN_ON(to > inode->i_size); + + if (from >= to || bsize == PAGE_CACHE_SIZE) + return; + /* Page straddling @from will not have any hole block created? */ + rounded_from = round_up(from, bsize); + if (to <= rounded_from || !(rounded_from & (PAGE_CACHE_SIZE - 1))) + return; + + index = from >> PAGE_CACHE_SHIFT; + page = find_lock_page(inode->i_mapping, index); + /* Page not cached? Nothing to do */ + if (!page) + return; + /* + * See clear_page_dirty_for_io() for details why set_page_dirty() + * is needed. + */ + if (page_mkclean(page)) + set_page_dirty(page); + unlock_page(page); + page_cache_release(page); +} +EXPORT_SYMBOL(pagecache_isize_extended); + +/** * truncate_pagecache_range - unmap and remove pagecache that is hole-punched * @inode: inode * @lstart: offset of beginning of hole -- 1.8.1.4 From borisz@hp.com Thu Sep 25 08:34:08 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 3892A7FB0 for ; Thu, 25 Sep 2014 08:34:08 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 183448F8033 for ; Thu, 25 Sep 2014 06:34:05 -0700 (PDT) X-ASG-Debug-ID: 1411652043-04cbb0730427e1d0001-NocioJ Received: from g4t3425.houston.hp.com (g4t3425.houston.hp.com [15.201.208.53]) by cuda.sgi.com with ESMTP id L8gK0eV2bSObhdjC (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 25 Sep 2014 06:34:03 -0700 (PDT) X-Barracuda-Envelope-From: borisz@hp.com X-Barracuda-Apparent-Source-IP: 15.201.208.53 Received: from G4W6310.americas.hpqcorp.net (g4w6310.houston.hp.com [16.210.26.217]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by g4t3425.houston.hp.com (Postfix) with ESMTPS id 6F968105; Thu, 25 Sep 2014 13:34:03 +0000 (UTC) Received: from G4W6303.americas.hpqcorp.net (16.210.26.228) by G4W6310.americas.hpqcorp.net (16.210.26.217) with Microsoft SMTP Server (TLS) id 14.3.169.1; Thu, 25 Sep 2014 13:33:10 +0000 Received: from G4W3303.americas.hpqcorp.net ([169.254.5.77]) by G4W6303.americas.hpqcorp.net ([16.210.26.228]) with mapi id 14.03.0169.001; Thu, 25 Sep 2014 13:33:10 +0000 From: "Zuckerman, Boris" To: Dave Chinner , Olaf Weber CC: Ben Myers , "linux-fsdevel@vger.kernel.org" , "tinguely@sgi.com" , "xfs@oss.sgi.com" Subject: RE: [RFC v2] Unicode/UTF-8 support for XFS Thread-Topic: [RFC v2] Unicode/UTF-8 support for XFS X-ASG-Orig-Subj: RE: [RFC v2] Unicode/UTF-8 support for XFS Thread-Index: AQHP03v8opbMMceUwEm80AhsAqbz8JwNwXSAgAKMXACAAKSoAIAA8ByQ Date: Thu, 25 Sep 2014 13:33:09 +0000 Message-ID: <4C30833E5CDF444D84D942543DF65BDA6E045594@G4W3303.americas.hpqcorp.net> References: <20140918195650.GI19952@sgi.com> <20140922222611.GZ4322@dastard> <5422C540.1060007@sgi.com> <20140924231024.GA4758@dastard> In-Reply-To: <20140924231024.GA4758@dastard> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [16.210.192.234] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Barracuda-Connect: g4t3425.houston.hp.com[15.201.208.53] X-Barracuda-Start-Time: 1411652043 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.02 X-Barracuda-Spam-Status: No, SCORE=0.02 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=THREAD_INDEX, THREAD_TOPIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9863 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig== 0.01 THREAD_TOPIC Thread-Topic: ...(Japanese Subject)... > -----Original Message----- > From: linux-fsdevel-owner@vger.kernel.org [mailto:linux-fsdevel- > owner@vger.kernel.org] On Behalf Of Dave Chinner > Sent: Wednesday, September 24, 2014 7:10 PM > To: Olaf Weber > Cc: Ben Myers; linux-fsdevel@vger.kernel.org; tinguely@sgi.com; xfs@oss.s= gi.com > Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS >=20 > On Wed, Sep 24, 2014 at 03:21:04PM +0200, Olaf Weber wrote: > > On 23-09-14 00:26, Dave Chinner wrote: > > >On Thu, Sep 18, 2014 at 02:56:50PM -0500, Ben Myers wrote: > > > > [...] > > > > >>TODO: Store the unicode version number of the filesystem on disk in > > >>the super block. > > > > > >So, if the filesystem has to store the specific unicode version it > > >was created with so that we know what version to put in trie lookups, > > >again I'll ask: why are we loading the trie as a generic kernel > > >module and not as metadata in the filesystem that is demand paged and > > >cached? > > > > This way the trie can be shared, and the code using it is not > > entangled with the XFS code. >=20 > The trie parsing code can still be common - just the location and content= s of the data is > determined by the end-user. >=20 Both these approaches can co-exists (as I recall was done in Windows). A sy= stem may have "a default trie" and a caller (name space) can provide its ow= n... From tytso@thunk.org Thu Sep 25 08:42:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id AEBAB7FB3 for ; Thu, 25 Sep 2014 08:42:19 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 9A9A18F8040 for ; Thu, 25 Sep 2014 06:42:19 -0700 (PDT) X-ASG-Debug-ID: 1411652537-04cb6c50e720e910001-NocioJ Received: from imap.thunk.org (imap.thunk.org [74.207.234.97]) by cuda.sgi.com with ESMTP id RNgXu2ZWcEpnGjuh (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO) for ; Thu, 25 Sep 2014 06:42:17 -0700 (PDT) X-Barracuda-Envelope-From: tytso@thunk.org X-Barracuda-Apparent-Source-IP: 74.207.234.97 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=thunk.org; s=ef5046eb; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date; bh=CobGLaQb/5sKxp+PvK5q5pXF8otHo4Cqli5Eyp/lcVE=; b=kqYqxJmo5uHKwjf19WZ7CANMkhe6VOzK1+Q+tAsAc9vIZAyMD3w7VpteejyskTWJyuiEC2JN5fOkK4j6UGmFi8jYxv5APVGvQBE6hOra7zkqOOvD3F4oBAufvC1pDArwpaY/fYD6Aq369Fm1nZy1BlctRqD3eklzAx/sGC+mGLQ=; Received: from root (helo=closure.thunk.org) by imap.thunk.org with local-esmtp (Exim 4.80) (envelope-from ) id 1XX9Ih-0008Mn-1N; Thu, 25 Sep 2014 13:41:39 +0000 Received: by closure.thunk.org (Postfix, from userid 15806) id 6FFBA580238; Thu, 25 Sep 2014 09:41:37 -0400 (EDT) Date: Thu, 25 Sep 2014 09:41:37 -0400 From: Theodore Ts'o To: Dave Chinner Cc: Jan Kara , Christoph Hellwig , adilger@dilger.ca, linux-api@vger.kernel.org, xfs@oss.sgi.com, dmonakhov@openvz.org, viro@zeniv.linux.org.uk, Li Xi , linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org Subject: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project Message-ID: <20140925134136.GE4592@thunk.org> X-ASG-Orig-Subj: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project References: <1411567470-31799-1-git-send-email-lixi@ddn.com> <1411567470-31799-5-git-send-email-lixi@ddn.com> <20140924162507.GC27000@quack.suse.cz> <20140924162634.GA16886@infradead.org> <20140924170105.GE27000@quack.suse.cz> <20140925075912.GG4758@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140925075912.GG4758@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: tytso@thunk.org X-SA-Exim-Scanned: No (on imap.thunk.org); SAEximRunCond expanded to false X-Barracuda-Connect: imap.thunk.org[74.207.234.97] X-Barracuda-Start-Time: 1411652537 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9863 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Thu, Sep 25, 2014 at 05:59:12PM +1000, Dave Chinner wrote: > > Also I'm afraid we may quickly run out of > > 32 available flags in xflags so we'd need to extend that. But all this > > seems to be doable. > > The struct fsxattr was designed to be extensible - it has unused > padding and enough space in the flags field to allow us to > conditionally use that padding.... I agree that it would be useful for ext4 to support as much of the XFS_IOC_GETXATTR/XFS_IOC_SETATTR as would make sense for ext4, and to use that to set/get the project ID. (And that we should probably do that as a separate set of patches that we could potentially go into ext4 ahead of the project quota while it is undergoing testing and review.) A few questions of Dave and other XFS folks: 1) If we only implement a partial set of the flags or other functionality, are there going to be tools that get confused? i.e., are there any userspace programs that will test for whether the ioctl is supported, and then assume that some minimal set of functionality must be implemented? 2) Unless I'm missing something, there is nothing that enforces that fsx_pad must be zero. I assume that means that the only way you can expand use of fields into that space is via a flag bit being consumed? Cheers, - Ted From jack@suse.cz Thu Sep 25 08:52:20 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id CEADD7F9A for ; Thu, 25 Sep 2014 08:52:20 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 8A6278F8039 for ; Thu, 25 Sep 2014 06:52:20 -0700 (PDT) X-ASG-Debug-ID: 1411653137-04bdf003a02438e0001-NocioJ Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id 939kXG9C95zcUsNK (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 25 Sep 2014 06:52:18 -0700 (PDT) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id BA3D3AD5D; Thu, 25 Sep 2014 13:52:16 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id 49EC881F97; Thu, 25 Sep 2014 15:52:13 +0200 (CEST) Date: Thu, 25 Sep 2014 15:52:13 +0200 From: Jan Kara To: Dave Chinner Cc: Jan Kara , Christoph Hellwig , adilger@dilger.ca, linux-api@vger.kernel.org, xfs@oss.sgi.com, dmonakhov@openvz.org, viro@zeniv.linux.org.uk, Li Xi , linux-fsdevel@vger.kernel.org, tytso@mit.edu, linux-ext4@vger.kernel.org Subject: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project Message-ID: <20140925135213.GB15352@quack.suse.cz> X-ASG-Orig-Subj: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project References: <1411567470-31799-1-git-send-email-lixi@ddn.com> <1411567470-31799-5-git-send-email-lixi@ddn.com> <20140924162507.GC27000@quack.suse.cz> <20140924162634.GA16886@infradead.org> <20140924170105.GE27000@quack.suse.cz> <20140925075912.GG4758@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140925075912.GG4758@dastard> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: cantor2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1411653138 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9864 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu 25-09-14 17:59:12, Dave Chinner wrote: > On Wed, Sep 24, 2014 at 07:01:05PM +0200, Jan Kara wrote: > > On Wed 24-09-14 09:26:34, Christoph Hellwig wrote: > > > On Wed, Sep 24, 2014 at 06:25:07PM +0200, Jan Kara wrote: > > > > On Wed 24-09-14 22:04:30, Li Xi wrote: > > > > > This patch adds ioctl interface for setting/getting project of ext4. > > > > The patch looks good to me. I was just wondering whether it won't be > > > > useful to add an ioctl() which isn't ext4 specific. We could just extend > > > > ->setattr() to allow setting of project ID (most filesystems would just > > > > return -EOPNOTSUPP but ext4 and xfs could do the right thing) and then call > > > > ->setattr from the generic ioctl. That way userspace won't have to care > > > > about filesystem type when setting project ID... What do others think? > > > > > > Absolutely. In general I also wonder why this patch doesn't implement > > > the full XFS API. Maybe there is a reason it was considered and > > > rejected, but it would be helpful to document why. > > Do you mean full get/setfsxattr API? > > That's a good start. > > The bigger issue in my mind is that we already have a fully featured > quota API that supports project quotas and userspace tools available > that manipulate it. xfstests already uses those tools and API > for testing project quotas. Well, the VFS quota API is trivially extended by adding additional quota type so I don't really see about which reinventing of quota API are you speaking here... > This whole patchset reinvents all the quota APIs, and will require > adding support in userspace, and hence require re-inventing all the > test infrastructure we already have because it won't be compatible > with the existing project quota test code. Well, quota-tools will have to extended to know about the new quota type. Yes. But that's easy to do. I think teaching xfs quota tools to work with ext4 will be a bigger project plus I don't think I want to force sysadmins which are used to work with quota-tools to switch to other utilities just because of project quotas. Regarding xfstests - I've checked and most of the project quota tests in xfs directory aren't directly usable for ext4 anyway because of other functionality ext4 doesn't support. So we'll need to distill the least common denominator from them anyway... > > That basically contains project ID, > > flags (those that are currently get/set with FS_IOC_GETFLAGS/SETFLAGS), and > > extent size hint right? > > It's a different set of flag definitions. We translate the interface > XFS_XFLAG_* values to/from the inode on-disk XFS_DIFLAG_* inode values, just > like we translate the VFS FS_*_FL flags that get passed through the > FS_IOC_GETFLAGS/SETFLAGS ioctl. > > > That seems workable and it would also make setting > > of PROJINHERIT flag fs agnostic. Only we would have to create some generic > > flags namespace and merge into that ext4 flags and have a translation > > function for the old ext4 flags. > > The XFS_XFLAGS_* are already filesystem agnostic - they are flags > that are only used for interfacing with userspace and hence only > exist at the ioctl copy in/out layer..... > > > Also I'm afraid we may quickly run out of > > 32 available flags in xflags so we'd need to extend that. But all this > > seems to be doable. > > The struct fsxattr was designed to be extensible - it has unused > padding and enough space in the flags field to allow us to > conditionally use that padding.... Yeah, this should all be easy. Honza -- Jan Kara SUSE Labs, CR From bfoster@redhat.com Thu Sep 25 10:07:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 77BEF7F6C for ; Thu, 25 Sep 2014 10:07:11 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 57369304062 for ; Thu, 25 Sep 2014 08:07:08 -0700 (PDT) X-ASG-Debug-ID: 1411657626-04cbb073012aae50001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id MniOlrjtDKAiVSul (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 25 Sep 2014 08:07:07 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8PF75U0030716 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 25 Sep 2014 11:07:05 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8PF75ZQ018796; Thu, 25 Sep 2014 11:07:05 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 12895120064; Thu, 25 Sep 2014 11:07:04 -0400 (EDT) Date: Thu, 25 Sep 2014 11:07:04 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [RFC PATCH] xfs: borrow indirect blocks from freed extent when available Message-ID: <20140925150703.GB47304@bfoster.bfoster> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: borrow indirect blocks from freed extent when available References: <1411500538-6831-1-git-send-email-bfoster@redhat.com> <20140923215816.GC4322@dastard> <20140924122746.GA53094@bfoster.bfoster> <20140924233014.GB4758@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140924233014.GB4758@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411657627 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Sep 25, 2014 at 09:30:14AM +1000, Dave Chinner wrote: > On Wed, Sep 24, 2014 at 08:27:46AM -0400, Brian Foster wrote: > > On Wed, Sep 24, 2014 at 07:58:16AM +1000, Dave Chinner wrote: > > > On Tue, Sep 23, 2014 at 03:28:58PM -0400, Brian Foster wrote: > > > > xfs_bmap_del_extent() handles extent removal from the in-core and > > > > on-disk extent lists. When removing a delalloc range, it updates the > > > > indirect block reservation appropriately based on the removal. It > > > > currently enforces that the new indirect block reservation is less than > > > > or equal to the original. This is normally the case in all situations > > > > except for when the removed range creates a hole in a single delalloc > > > > extent, thus splitting a single delalloc extent in two. > > > > > > > > The indirect block reservation is divided evenly between the two new > > > > extents in this scenario. However, it is possible with small enough > > > > extents to split an indlen==1 extent into two such slightly smaller > > > > extents. This leaves one extent with 0 indirect blocks and leads to > > > > assert failures in other areas (e.g., xfs_bunmapi() if the extent > > > > happens to be removed). > > > > > > I had long suspected we had an issue in this code, but was never > > > able to nail down a reproducer that triggered it. Do you have a > > > reproducer, or did you find this by reading/tracing the code? > > > > > > > I have a setup on which fsx reproduces an instance of this within a few > > minutes consistently. It looks like the same sequence of events each > > occurrence so I can try to derive a more specific test case for it. I > > suspect the right sequence of delayed allocation followed by hole > > punching or zeroing should be able to trigger it. > > *nod* > > > > > Refactor xfs_bunmapi() to make the updates that must be consistent > > > > against the inode (e.g., delalloc block counter, quota reservation) > > > > right before the extent is deleted. Move the sb block counter update > > > > after the extent is deleted and update xfs_bmap_del_extent() to steal > > > > some blocks from the freed extent if a larger overall indirect > > > > reservation is required by the extent removal. > > > > > > > > Signed-off-by: Brian Foster > > > > --- > > > > > > > > Hi all, > > > > > > > > I'm seeing the following assert more frequently with fsx and the recent > > > > xfs_free_file_space() changes (at least on 1k fsb fs'): > > > > > > > > XFS: Assertion failed: startblockval(del.br_startblock) > 0, file: fs/xfs/libxfs/xfs_bmap.c, line: 5281 > > > > > > > > This occurs for the reason described in the commit log description. This > > > > is a quick experiment I wanted to test to verify the problem goes away > > > > (so far, so good). Very lightly tested so far. > > > > > > I suspect it's also the cause of these occasional assert failures > > > that I see: > > > > > > XFS: Assertion failed: tp->t_blk_res_used <= tp->t_blk_res, file: fs/xfs/xfs_trans.c, line: 327 > > > > > > during delalloc conversion because there wasn't a space reservation > > > for the blocks allocated (i.e. indlen was zero) and so we overrun > > > the transaction block reservation. > > > > > > > Interesting, I've seen this as well though I'll have to go back and see > > where I was getting it from. I did run fsx overnight without any assert > > failures at all, which seems rare lately. ;) I wasn't running my usual > > parallel fsstress however. I've started that and I reproduce an instance > > of that assert failure within a few minutes, so if related it appears > > this might not be the only contributer. I'll look more into that one > > next. > > I knew I'd looked at this before: > > http://oss.sgi.com/archives/xfs/2014-03/msg00314.html > > That got lost because I wrote it in a topic branch and not my usual > working branch, so when I dropped the topic branch. Guilt, however, > keeps all the patches from topic branches around, and so when I just > did a grep for da_new across .git/patch, this showed up. > > It's basically the same "steal blocks from the deleted extent > reservation fix, and it was trying to address the above failure. > However, there are some other details in it (like changing the > location of delalloc accounting updates) that might be relevant. > Ah, right. I thought I had seen something like this before. In fact I had it in my head that we already did something like this when I narrowed in on the code so I was somewhat surprised, but I didn't go back and look through the list. That explains that. :) This version moves the entire delalloc accounting hunk after the xfs_bmap_del_extent() call. I think the problem with that is the sb counter is the only record keeping that encompasses data blocks and indirect blocks, which is why I only moved that update in xfs_bunmapi(). That's also precisely why I consider using a separate parameter rather than updating br_blockcount. Let me know if you wanted to resurrect this one, otherwise I'll try to double check all of that when I get back to reworking mine... > > I'm pretty sure the test case was simply something like: > > xfs_io -f -c "pwrite 0 1m" \ > -c "fzero 4k 8k" \ > -c "fzero 16k 8k" \ > -c "fzero 32k 8k" \ > -c "fzero 64k 8k" \ > ..... > > To basically split the delalloc extent repeatedly and hence drain > the reservation. > Yep, thanks. I assume you saw the test I posted: http://oss.sgi.com/archives/xfs/2014-09/msg00371.html Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Thu Sep 25 10:14:30 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=LOTS_OF_MONEY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 692A47FA3 for ; Thu, 25 Sep 2014 10:14:30 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 36E9D304062 for ; Thu, 25 Sep 2014 08:14:30 -0700 (PDT) X-ASG-Debug-ID: 1411658068-04bdf0039f25c980001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id JXCZEEVdIATEdome (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 25 Sep 2014 08:14:29 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8PFEQB0004244 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 25 Sep 2014 11:14:26 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8PFEPrO006733; Thu, 25 Sep 2014 11:14:26 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id D3A77120064; Thu, 25 Sep 2014 11:14:24 -0400 (EDT) Date: Thu, 25 Sep 2014 11:14:24 -0400 From: Brian Foster To: Eryu Guan Cc: fstests@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [PATCH] generic/033: add xfs delalloc indirect block depletion reproducer Message-ID: <20140925151424.GC47304@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] generic/033: add xfs delalloc indirect block depletion reproducer References: <1411584425-52709-1-git-send-email-bfoster@redhat.com> <20140925035416.GC13950@dhcp-13-216.nay.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140925035416.GC13950@dhcp-13-216.nay.redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411658069 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Sep 25, 2014 at 11:54:16AM +0800, Eryu Guan wrote: > On Wed, Sep 24, 2014 at 02:47:05PM -0400, Brian Foster wrote: > > XFS allocates extra indirect blocks for delayed allocation extents at > > write time. When delalloc extents are split, the existing indirect block > > reservation was historically divided up evenly among the new extents > > even though the overall requirement for two extents could exceed the > > requirement for the original. Repeated delalloc extent splits ultimately > > leads to extents with 0 indirect blocks and in turn leads to assert > > failures in XFS. > > > > Add a test to stress indirect block reservation for delayed allocation > > extents. The test converts a single delalloc extent to many and operates > > on the remaining extents to detect or trigger potential problems. > > > > Signed-off-by: Brian Foster > > --- > > > > Here's a simple reproducer for the indirect block reservation problem > > called out here: > > > > http://oss.sgi.com/archives/xfs/2014-09/msg00337.html > > > > It reproduces the assert failures described therein: > > > > XFS: Assertion failed: startblockval(del.br_startblock) > 0, file: fs/xfs/libxfs/xfs_bmap.c, line: 5281 > > > > Note that this test also unintentionally fails on XFS. The test file > > ends up zero-sized after the remount and thus hexdump doesn't produce > > any output. This doesn't occur on ext4, I suspect due to the fact that > > the range being zeroed is flushed beforehand, though I could be wrong > > about that. > > Tested with ext4 and xfs, and ext4 passes/xfs fails the test as > described here. > > Reviewed-by: Eryu Guan > > With one nitpick below.. > > > > > In any event, this calls out a separate bug in XFS where if appending > > data is chucked from cache by zero range before written back (eof is > > page aligned), we lose the on-disk inode size update and the inode size > > changes unexpectedly across the remount (assuming nothing else changes > > the size, of course). > > > > Brian > > > > tests/generic/033 | 88 +++++++++++++++++++++++++++++++++++++++++++++++++++ > > tests/generic/033.out | 4 +++ > > tests/generic/group | 1 + > > 3 files changed, 93 insertions(+) > > create mode 100755 tests/generic/033 > > create mode 100644 tests/generic/033.out > > > > diff --git a/tests/generic/033 b/tests/generic/033 > > new file mode 100755 > > index 0000000..41198b7 > > --- /dev/null > > +++ b/tests/generic/033 > > @@ -0,0 +1,88 @@ > > +#! /bin/bash > > +# FS QA Test No. 033 > > +# > > +# This test stresses indirect block reservation for delayed allocation extents. > > +# XFS reserves extra blocks for deferred allocation of delalloc extents. These > > +# reserved blocks can be divided among more extents than anticipated if the > > +# original extent for which the blocks were reserved is split into multiple > > +# delalloc extents. If this scenario repeats, eventually some extents are left > > +# without any indirect block reservation whatsoever. This leads to assert > > +# failures and possibly other problems in XFS. > > +# > > +#----------------------------------------------------------------------- > > +# Copyright (c) 2014 Red Hat, Inc. All Rights Reserved. > > +# > > +# This program is free software; you can redistribute it and/or > > +# modify it under the terms of the GNU General Public License as > > +# published by the Free Software Foundation. > > +# > > +# This program is distributed in the hope that it would be useful, > > +# but WITHOUT ANY WARRANTY; without even the implied warranty of > > +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > > +# GNU General Public License for more details. > > +# > > +# You should have received a copy of the GNU General Public License > > +# along with this program; if not, write the Free Software Foundation, > > +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA > > +#----------------------------------------------------------------------- > > +# > > + > > +seq=`basename $0` > > +seqres=$RESULT_DIR/$seq > > +echo "QA output created by $seq" > > + > > +here=`pwd` > > +tmp=/tmp/$$ > > +status=1 # failure is the default! > > +trap "_cleanup; exit \$status" 0 1 2 3 15 > > + > > +_cleanup() > > +{ > > + cd / > > + rm -f $tmp.* > > +} > > + > > +# get standard environment, filters and checks > > +. ./common/rc > > +. ./common/filter > > + > > +# real QA test starts here > > +rm -f $seqres.full > > + > > +# Modify as appropriate. > > +_supported_fs generic > > +_supported_os Linux > > +_require_scratch > > +_require_xfs_io_command "fzero" > > + > > +_scratch_mkfs >/dev/null 2>&1 > > +_scratch_mount > > + > > +file=$SCRATCH_MNT/file.$seq > > +bytes=$((64 * 1024)) > > + > > +# create sequential delayed allocation > > +$XFS_IO_PROG -f -c "pwrite 0 $bytes" $file | _filter_xfs_io \ > > + >> $seqres.full 2>&1 > > The output of xfs_io is redirected to $seqres.full, so it's not > necessary to be filtered, for debug purpose. > > And the following two xfs_io calls. > Indeed, I'll post v2. Thanks for the review. Brian > Thanks, > Eryu > > > + > > +# Zero every other 4k range to split the larger delalloc extent into many more > > +# smaller extents. Use zero instead of hole punch because the former does not > > +# force writeback (and hence delalloc conversion). It can simply discard > > +# delalloc blocks and convert the ranges to unwritten. > > +endoff=$((bytes - 4096)) > > +for i in $(seq 0 8192 $endoff); do > > + $XFS_IO_PROG -c "fzero -k $i 4k" $file | _filter_xfs_io \ > > + >> $seqres.full 2>&1 > > +done > > + > > +# now zero the opposite set to remove remaining delalloc extents > > +for i in $(seq 4096 8192 $endoff); do > > + $XFS_IO_PROG -c "fzero -k $i 4k" $file | _filter_xfs_io \ > > + >> $seqres.full 2>&1 > > +done > > + > > +_scratch_remount > > +hexdump $file > > + > > +status=0 > > +exit > > diff --git a/tests/generic/033.out b/tests/generic/033.out > > new file mode 100644 > > index 0000000..419d831 > > --- /dev/null > > +++ b/tests/generic/033.out > > @@ -0,0 +1,4 @@ > > +QA output created by 033 > > +0000000 0000 0000 0000 0000 0000 0000 0000 0000 > > +* > > +0010000 > > diff --git a/tests/generic/group b/tests/generic/group > > index 8e0c22a..1227408 100644 > > --- a/tests/generic/group > > +++ b/tests/generic/group > > @@ -32,6 +32,7 @@ > > 027 auto enospc > > 028 auto quick > > 032 auto quick rw > > +033 auto quick rw > > 053 acl repair auto quick > > 062 attr udf auto quick > > 068 other auto freeze dangerous stress > > -- > > 1.8.3.1 > > > > _______________________________________________ > > xfs mailing list > > xfs@oss.sgi.com > > http://oss.sgi.com/mailman/listinfo/xfs > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Thu Sep 25 10:21:55 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1834A7FAF for ; Thu, 25 Sep 2014 10:21:55 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 9C41EAC003 for ; Thu, 25 Sep 2014 08:21:51 -0700 (PDT) X-ASG-Debug-ID: 1411658509-04cbb073032b50b0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id DItW6nT0vAJDjicl (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 25 Sep 2014 08:21:50 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8PFLlnJ004374 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 25 Sep 2014 11:21:48 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8PFLkRv022100; Thu, 25 Sep 2014 11:21:47 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id D985B120064; Thu, 25 Sep 2014 11:21:45 -0400 (EDT) Date: Thu, 25 Sep 2014 11:21:45 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH] xfs: flush the range before zero range conversion Message-ID: <20140925152145.GD47304@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs: flush the range before zero range conversion References: <1411585591-55975-1-git-send-email-bfoster@redhat.com> <20140925120155.GF4945@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140925120155.GF4945@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411658510 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Sep 25, 2014 at 10:01:55PM +1000, Dave Chinner wrote: > On Wed, Sep 24, 2014 at 03:06:31PM -0400, Brian Foster wrote: > > XFS currently discards delalloc blocks within the target range of a zero > > range request. Unaligned start and end offsets are zeroed through the > > page cache and the internal, aligned blocks are converted to unwritten > > extents. > > > > If EOF is page aligned and covered by a delayed allocation extent. The > > inode size is not updated until I/O completion. If a zero range request > > discards a delalloc range that covers page aligned EOF as such, the > > inode size update never occurs. For example: > > > > $ rm -f /mnt/file > > $ xfs_io -fc "pwrite 0 64k" -c "zero 60k 4k" /mnt/file > > $ stat -c "%s" /mnt/file > > 65536 > > $ umount /mnt > > $ mount /mnt > > $ stat -c "%s" /mnt/file > > 61440 > > > > Update xfs_zero_file_space() to flush the range rather than discard > > delalloc blocks to ensure that inode size updates occur appropriately. > > > > Signed-off-by: Brian Foster > > --- > > > > I suppose we could be more clever here and only flush the range in this > > particular scenario, but I'm not sure if there's a major benefit there. > > Punching the delalloc range rather than flushing the file > was done intentionally - this was added primarily for speeding up > the zeroing of large VM image files. i.e. it's an extent > manipulation operation rather than a data Io operation. Flushing the > file defeats the primary reason for the operation existing. > > We can easily detect this situation and just zero the last block in > the file directly after punching out all the delalloc state. This > should happen anyway when the region to be zeroed is not page > aligned.... > Hmm, good point. xfs_iozero() goes through page cache. It seems like that should work and it's something we already have to handle in this path. I'll give it a shot. Brian > > FWIW, this implicitly addresses the indlen==0 assert failures described > > in the xfs_bmap_del_extent() rfc, but doesn't necessarily mean we > > shouldn't fix that code IMO. > > We punch delalloc extents elsewhere, so that still needs fixing. > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From BATV+13b43cd15e22c45ddf3c+4050+infradead.org+hch@bombadil.srs.infradead.org Thu Sep 25 10:56:07 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id AE96D7FC3 for ; Thu, 25 Sep 2014 10:56:07 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 7DF30304059 for ; Thu, 25 Sep 2014 08:56:07 -0700 (PDT) X-ASG-Debug-ID: 1411660565-04bdf003a1268790001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id 9Yla7hypEnisjp3d (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 25 Sep 2014 08:56:05 -0700 (PDT) X-Barracuda-Envelope-From: BATV+13b43cd15e22c45ddf3c+4050+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXBOm-0004tm-Tu; Thu, 25 Sep 2014 15:56:04 +0000 Date: Thu, 25 Sep 2014 08:56:04 -0700 From: Christoph Hellwig To: Carlos Maiolino Cc: xfs@oss.sgi.com Subject: Re: beginners project: RENAME_EXCHANGE Message-ID: <20140925155604.GB12480@infradead.org> X-ASG-Orig-Subj: Re: beginners project: RENAME_EXCHANGE References: <20140922173545.GA20308@infradead.org> <20140923034351.GB25353@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140923034351.GB25353@localhost.localdomain> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411660565 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9867 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Tue, Sep 23, 2014 at 12:43:52AM -0300, Carlos Maiolino wrote: > Hi, for some time I don't work on anything upstream due being very busy with > another stuff, I'm interested in take this project if nobody has objections I don't think you still qualify as beginner :) Joking aside: I'd love you take on this one! From cmaiolino@redhat.com Thu Sep 25 11:10:04 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 3AF947FC4 for ; Thu, 25 Sep 2014 11:10:04 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 292C78F8039 for ; Thu, 25 Sep 2014 09:10:00 -0700 (PDT) X-ASG-Debug-ID: 1411661399-04cb6c50e52394e0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id zE6wwqPAS1HqmqFf (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 25 Sep 2014 09:10:00 -0700 (PDT) X-Barracuda-Envelope-From: cmaiolino@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8PG9b7X017047 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 25 Sep 2014 12:09:37 -0400 Received: from localhost.localdomain (ovpn-113-183.phx2.redhat.com [10.3.113.183]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8PG9X1r028373 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Thu, 25 Sep 2014 12:09:36 -0400 Date: Thu, 25 Sep 2014 13:09:33 -0300 From: Carlos Maiolino To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: Re: beginners project: RENAME_EXCHANGE Message-ID: <20140925160932.GA21381@localhost.localdomain> X-ASG-Orig-Subj: Re: beginners project: RENAME_EXCHANGE Mail-Followup-To: Christoph Hellwig , xfs@oss.sgi.com References: <20140922173545.GA20308@infradead.org> <20140923034351.GB25353@localhost.localdomain> <20140925155604.GB12480@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140925155604.GB12480@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411661400 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Sep 25, 2014 at 08:56:04AM -0700, Christoph Hellwig wrote: > On Tue, Sep 23, 2014 at 12:43:52AM -0300, Carlos Maiolino wrote: > > Hi, for some time I don't work on anything upstream due being very busy with > > another stuff, I'm interested in take this project if nobody has objections > > I don't think you still qualify as beginner :) Joking aside: I'd love > you take on this one! > :) I'm a bit rusty with upstream stuff, so, good way to get myself involved again. Will work on that soon. Cheers > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs -- Carlos From BATV+13b43cd15e22c45ddf3c+4050+infradead.org+hch@bombadil.srs.infradead.org Thu Sep 25 11:17:58 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 9DF0E7FC7 for ; Thu, 25 Sep 2014 11:17:58 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7B3D58F8035 for ; Thu, 25 Sep 2014 09:17:58 -0700 (PDT) X-ASG-Debug-ID: 1411661877-04cbb073032d22f0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id KZAmLvtJDWfe4T4b (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 25 Sep 2014 09:17:57 -0700 (PDT) X-Barracuda-Envelope-From: BATV+13b43cd15e22c45ddf3c+4050+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXBjw-0008Dw-Ip; Thu, 25 Sep 2014 16:17:56 +0000 Date: Thu, 25 Sep 2014 09:17:56 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/3] xfs: consider freeze levels in xfs_fs_writable() Message-ID: <20140925161756.GA25798@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 1/3] xfs: consider freeze levels in xfs_fs_writable() References: <1411647632-28240-1-git-send-email-david@fromorbit.com> <1411647632-28240-2-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411647632-28240-2-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411661877 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9867 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS > index d36bdbc..9073895 100644 > --- a/fs/xfs/xfs_mount.c > +++ b/fs/xfs/xfs_mount.c > @@ -607,7 +607,7 @@ xfs_mount_reset_sbqflags( > * If the fs is readonly, let the incore superblock run > * with quotas off but don't flush the update out to disk > */ > - if (mp->m_flags & XFS_MOUNT_RDONLY) > + if (!xfs_fs_writable(mp, SB_UNFROZEN)) This adds a new caller of xfs_fs_writable, which isn't mentioned in the changelog. > + /* > + * We can be called during the fs freeze process, and we need to be > + * able to write the superblock in that case. > + */ > + if (!xfs_fs_writable(mp, SB_FREEZE_FS)) > return 0; And this already changes the checked freeze level, also not mentioned. From BATV+13b43cd15e22c45ddf3c+4050+infradead.org+hch@bombadil.srs.infradead.org Thu Sep 25 11:19:49 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id DF3777FC7 for ; Thu, 25 Sep 2014 11:19:49 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id BE9A08F8035 for ; Thu, 25 Sep 2014 09:19:49 -0700 (PDT) X-ASG-Debug-ID: 1411661988-04cb6c50e623a760001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id RZyTXqiMeJmPB8Rn (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 25 Sep 2014 09:19:48 -0700 (PDT) X-Barracuda-Envelope-From: BATV+13b43cd15e22c45ddf3c+4050+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXBlk-0002h8-64; Thu, 25 Sep 2014 16:19:48 +0000 Date: Thu, 25 Sep 2014 09:19:48 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 02/11] xfs: Don't use xfs_buf_iowait in the delwri buffer code Message-ID: <20140925161948.GB25798@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 02/11] xfs: Don't use xfs_buf_iowait in the delwri buffer code References: <1411648461-29003-1-git-send-email-david@fromorbit.com> <1411648461-29003-3-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411648461-29003-3-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411661988 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9868 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS Looks good, Reviewed-by: Christoph Hellwig From bfoster@redhat.com Thu Sep 25 11:26:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=LOTS_OF_MONEY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0A4DE7FC7 for ; Thu, 25 Sep 2014 11:26:40 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id DE34C304059 for ; Thu, 25 Sep 2014 09:26:36 -0700 (PDT) X-ASG-Debug-ID: 1411662395-04cbb073032d5f90001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id e2IQzFBPVKFTcaNg (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 25 Sep 2014 09:26:36 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8PGQXOJ005139 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 25 Sep 2014 12:26:34 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8PGQW7t015869; Thu, 25 Sep 2014 12:26:33 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id D51F5120064; Thu, 25 Sep 2014 12:26:31 -0400 (EDT) From: Brian Foster To: fstests@vger.kernel.org Cc: xfs@oss.sgi.com Subject: [PATCH v2] generic/033: add xfs delalloc indirect block depletion reproducer Date: Thu, 25 Sep 2014 12:26:31 -0400 X-ASG-Orig-Subj: [PATCH v2] generic/033: add xfs delalloc indirect block depletion reproducer Message-Id: <1411662391-56463-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411662395 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 XFS allocates extra indirect blocks for delayed allocation extents at write time. When delalloc extents are split, the existing indirect block reservation was historically divided up evenly among the new extents even though the overall requirement for two extents could exceed the requirement for the original. Repeated delalloc extent splits ultimately leads to extents with 0 indirect blocks and in turn leads to assert failures in XFS. Add a test to stress indirect block reservation for delayed allocation extents. The test converts a single delalloc extent to many and operates on the remaining extents to detect or trigger potential problems. Signed-off-by: Brian Foster Reviewed-by: Eryu Guan --- v2: - Remove xfs_io output filter from output to $seqres.full. v1: http://oss.sgi.com/archives/xfs/2014-09/msg00371.html tests/generic/033 | 84 +++++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/033.out | 4 +++ tests/generic/group | 1 + 3 files changed, 89 insertions(+) create mode 100755 tests/generic/033 create mode 100644 tests/generic/033.out diff --git a/tests/generic/033 b/tests/generic/033 new file mode 100755 index 0000000..d221fcd --- /dev/null +++ b/tests/generic/033 @@ -0,0 +1,84 @@ +#! /bin/bash +# FS QA Test No. 033 +# +# This test stresses indirect block reservation for delayed allocation extents. +# XFS reserves extra blocks for deferred allocation of delalloc extents. These +# reserved blocks can be divided among more extents than anticipated if the +# original extent for which the blocks were reserved is split into multiple +# delalloc extents. If this scenario repeats, eventually some extents are left +# without any indirect block reservation whatsoever. This leads to assert +# failures and possibly other problems in XFS. +# +#----------------------------------------------------------------------- +# Copyright (c) 2014 Red Hat, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc + +# real QA test starts here +rm -f $seqres.full + +# Modify as appropriate. +_supported_fs generic +_supported_os Linux +_require_scratch +_require_xfs_io_command "fzero" + +_scratch_mkfs >/dev/null 2>&1 +_scratch_mount + +file=$SCRATCH_MNT/file.$seq +bytes=$((64 * 1024)) + +# create sequential delayed allocation +$XFS_IO_PROG -f -c "pwrite 0 $bytes" $file >> $seqres.full 2>&1 + +# Zero every other 4k range to split the larger delalloc extent into many more +# smaller extents. Use zero instead of hole punch because the former does not +# force writeback (and hence delalloc conversion). It can simply discard +# delalloc blocks and convert the ranges to unwritten. +endoff=$((bytes - 4096)) +for i in $(seq 0 8192 $endoff); do + $XFS_IO_PROG -c "fzero -k $i 4k" $file >> $seqres.full 2>&1 +done + +# now zero the opposite set to remove remaining delalloc extents +for i in $(seq 4096 8192 $endoff); do + $XFS_IO_PROG -c "fzero -k $i 4k" $file >> $seqres.full 2>&1 +done + +_scratch_remount +hexdump $file + +status=0 +exit diff --git a/tests/generic/033.out b/tests/generic/033.out new file mode 100644 index 0000000..419d831 --- /dev/null +++ b/tests/generic/033.out @@ -0,0 +1,4 @@ +QA output created by 033 +0000000 0000 0000 0000 0000 0000 0000 0000 0000 +* +0010000 diff --git a/tests/generic/group b/tests/generic/group index 8e0c22a..1227408 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -32,6 +32,7 @@ 027 auto enospc 028 auto quick 032 auto quick rw +033 auto quick rw 053 acl repair auto quick 062 attr udf auto quick 068 other auto freeze dangerous stress -- 1.8.3.1 From anton.gamel@physik.uni-freiburg.de Thu Sep 25 15:01:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id DEE937FCD for ; Thu, 25 Sep 2014 15:01:18 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 4398DAC008 for ; Thu, 25 Sep 2014 13:01:14 -0700 (PDT) X-ASG-Debug-ID: 1411675269-04bdf0039f2ae4f0001-NocioJ Received: from mailgateway3.uni-freiburg.de (mailgateway3.uni-freiburg.de [132.230.2.213]) by cuda.sgi.com with ESMTP id jEz1QwvBimxwN2av (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 25 Sep 2014 13:01:11 -0700 (PDT) X-Barracuda-Envelope-From: anton.gamel@physik.uni-freiburg.de X-Barracuda-Apparent-Source-IP: 132.230.2.213 Delivery-date: Thu, 25 Sep 2014 22:01:11 +0200 Received: from ms2.uni-freiburg.de ([132.230.2.3] helo=uni-freiburg.de) port 34924 by mailgateway3.uni-freiburg.de with esmtp (Exim 4.80.1 #2 built 18-Dec-2013 10:01:47 running on Gentoo) id 1XXFDx-0007Un-BC for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:01:09 +0200 Received: from proton.ruf.uni-freiburg.de (account anton.gamel@physik.uni-freiburg.de [132.230.8.150] verified) by physik.uni-freiburg.de (CommuniGate Pro SMTP 6.0.9) with ESMTPA id 241100125 for xfs@oss.sgi.com; Thu, 25 Sep 2014 22:01:08 +0200 Message-ID: <54247484.2030808@physik.uni-freiburg.de> Date: Thu, 25 Sep 2014 22:01:08 +0200 From: "Gamel Anton J." Organization: =?ISO-8859-1?Q?Universit=E4t_Freiburg?= User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: irregular mkfs.xfs results on identical HW Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms060901090108060206010307" X-ASG-Orig-Subj: irregular mkfs.xfs results on identical HW X-Barracuda-Connect: mailgateway3.uni-freiburg.de[132.230.2.213] X-Barracuda-Start-Time: 1411675270 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9875 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- This is a cryptographically signed message in MIME format. --------------ms060901090108060206010307 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Dear all, servers with identical disk setup (HW RAID0 H310a): Disk /dev/sda: 598.9 GB, 598879502336 bytes /dev/sda1 1 49152 394813439+ 82 Linux swap / Sola= ris /dev/sda2 49153 50176 8225280 83 Linux /dev/sda3 6399 72809 533446357+ 44 Unknown mkfs.xfs creates on 28 of them: meta-data=3D/dev/sda3 isize=3D256 agcount=3D16, agsize=3D= 8335099 blks =3D sectsz=3D512 attr=3D1, projid32bit=3D= 0 data =3D bsize=3D4096 blocks=3D133361584, ima= xpct=3D25 =3D sunit=3D0 swidth=3D0 blks naming =3Dversion 2 bsize=3D4096 ascii-ci=3D0 log =3Dinternal bsize=3D4096 blocks=3D32768, version= =3D1 =3D sectsz=3D512 sunit=3D0 blks, lazy-c= ount=3D1 realtime =3Dnone extsz=3D4096 blocks=3D0, rtextents=3D= 0 but on four out of them: meta-data=3D/dev/sda3 isize=3D256 agcount=3D4, agsize=3D3= 3340398 blks =3D sectsz=3D512 attr=3D2, projid32bit=3D= 0 data =3D bsize=3D4096 blocks=3D133361589, ima= xpct=3D25 =3D sunit=3D0 swidth=3D0 blks naming =3Dversion 2 bsize=3D4096 ascii-ci=3D0 log =3Dinternal bsize=3D4096 blocks=3D65117, version= =3D2 =3D sectsz=3D512 sunit=3D0 blks, lazy-c= ount=3D1 realtime =3Dnone extsz=3D4096 blocks=3D0, rtextents=3D= 0 I did not find a way to add mkfs.xfs options to get the identical filesystem setup on all nodes, e.g. # mkfs.xfs -d agcount=3D16 -b size=3D4096 /dev/sda3 -f meta-data=3D/dev/sda3 isize=3D256 agcount=3D16, agsize=3D= 8335100 blks =3D sectsz=3D512 attr=3D2, projid32bit=3D= 0 data =3D bsize=3D4096 blocks=3D133361589, ima= xpct=3D25 =3D sunit=3D0 swidth=3D0 blks naming =3Dversion 2 bsize=3D4096 ascii-ci=3D0 log =3Dinternal log bsize=3D4096 blocks=3D65117, version= =3D2 =3D sectsz=3D512 sunit=3D0 blks, lazy-c= ount=3D1 realtime =3Dnone extsz=3D4096 blocks=3D0, rtextents=3D= 0 The only way it worked was to dump nodeA:/dev/sda3 to nodeB:/dev/sda3 Is there an explanation? May be I missed something ... hints? Cheers and thanks in advance Anton --=20 Beste Gruesse Anton J. Gamel HPC und GRID-Computing Physikalisches Institut Abteilung Professor Schumacher c/o Rechenzentrum der Universit=E4t Freiburg Arbeitsgruppe Dr. Winterer Hermann-Herder-Stra=DFe 10 79104 Freiburg Tel.: ++49 (0)761 203 -4670 -- Es bleibt immer ein Rest - und ein Rest vom Rest. --------------ms060901090108060206010307 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIEQjCC BD4wggMmoAMCAQICAlwKMA0GCSqGSIb3DQEBDQUAMDYxCzAJBgNVBAYTAkRFMRMwEQYDVQQK EwpHZXJtYW5HcmlkMRIwEAYDVQQDEwlHcmlkS2EtQ0EwHhcNMTQwNjMwMTMzMzI2WhcNMTUw NzMwMTMzMzI2WjBUMQswCQYDVQQGEwJERTETMBEGA1UEChMKR2VybWFuR3JpZDEUMBIGA1UE CxMLVW5pRnJlaWJ1cmcxGjAYBgNVBAMTEUFudG9uIEpvc2VmIEdhbWVsMIIBIjANBgkqhkiG 9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvx9uDrse74v5oGPzZLMat9I50/WrLOIshXX7jwXxGH/1 RCdOKLOi3nEOg48i4/24IxwlxJNe1XPl8BIhBnKGWeTEt9rmu9rRoir4ogeGnBSm7mTinMOJ TmlonXEiIPerAIjAGdKVZNvCbup557HJ92bMiq/8IoNCpgD+Yu8r6VqoArws2APwVr3U/JcW njFQj0xX6ZMJwuF55HFC1mNQ3QifcobgWaHdFZK//eK9uT/13r5kB/BeX3X1Ha1xom26otPG Rl30bVMPLdxi8VyHK65zPIPGNh7FsXG32FS3iKQDhesXgrxh1heiFgyBff3xS1qa0bYcvUCT F3giJ8KPfQIDAQABo4IBNjCCATIwDAYDVR0TAQH/BAIwADAOBgNVHQ8BAf8EBAMCBLAwHQYD VR0lBBYwFAYIKwYBBQUHAwIGCCsGAQUFBwMEMB0GA1UdDgQWBBQDiUhVzQiNx2h2W9g8mGm4 05Y3wTAfBgNVHSMEGDAWgBTGdckorNEL/Dz/ubUe0187gGISNDAtBgNVHREEJjAkgSJhbnRv bi5nYW1lbEBwaHlzaWsudW5pLWZyZWlidXJnLmRlMBwGA1UdEgQVMBOBEWdyaWRrYS1jYUBr aXQuZWR1MDwGA1UdHwQ1MDMwMaAvoC2GK2h0dHA6Ly9ncmlka2EtY2Eua2l0LmVkdS9jcmwv Z3JpZGthLWNybC5kZXIwKAYDVR0gBCEwHzAPBg0rBgEEAZQ2qywBAQEJMAwGCiqGSIb3TAUC AgEwDQYJKoZIhvcNAQENBQADggEBANWSgkn5qzIUp5/XZfuQ42OHhuppguXtrbzblWe2gtkf WOWm4GrX4oRRHaUvIRkjrgOlc7jPHnLRMwccQJf1EMRRNFRqd5RrQeZxetMzxoOG4GxpSxOJ 5wqHoNYThl4c/73Ph2F+dpSBoqsWucUZPbrjcrQTQ0s630uB9XHinDeicidT4WynSAgE13Zl mr2jXDVGTzA7Ja3CTYCZaDZH5KV7fnOBnAxvZnyGAg24eL65fJhEyQxj5oPDjZsnw78UQevt r+n1jdSEI0PzlFi/2/7TX1ZmGOejxvBOd0WwFtzl8omz92R0jRUiDXgg5SV1kEAo5lTgiSMY n92mUIEYlwwxggLOMIICygIBATA8MDYxCzAJBgNVBAYTAkRFMRMwEQYDVQQKEwpHZXJtYW5H cmlkMRIwEAYDVQQDEwlHcmlkS2EtQ0ECAlwKMAkGBSsOAwIaBQCgggFnMBgGCSqGSIb3DQEJ AzELBgkqhkiG9w0BBwEwHAYJKoZIhvcNAQkFMQ8XDTE0MDkyNTIwMDEwOFowIwYJKoZIhvcN AQkEMRYEFJzFWiQ3vyrCLx8pPYc7n4IxnYdoMEsGCSsGAQQBgjcQBDE+MDwwNjELMAkGA1UE BhMCREUxEzARBgNVBAoTCkdlcm1hbkdyaWQxEjAQBgNVBAMTCUdyaWRLYS1DQQICXAowTQYL KoZIhvcNAQkQAgsxPqA8MDYxCzAJBgNVBAYTAkRFMRMwEQYDVQQKEwpHZXJtYW5HcmlkMRIw EAYDVQQDEwlHcmlkS2EtQ0ECAlwKMGwGCSqGSIb3DQEJDzFfMF0wCwYJYIZIAWUDBAEqMAsG CWCGSAFlAwQBAjAKBggqhkiG9w0DBzAOBggqhkiG9w0DAgICAIAwDQYIKoZIhvcNAwICAUAw BwYFKw4DAgcwDQYIKoZIhvcNAwICASgwDQYJKoZIhvcNAQEBBQAEggEAOGxmTOA3SHPdOqIw qp6IsLVhsqnrOClIQK0mTs9ZlHjwAp9i7rU4dN1dJPXsqIUP8DRtl/i48GGJYd22HcsQjGFf EnOKeDQVFkn/9bEROyE+p7xeaq0OyXGrITj0OgsOmwQ2U9CzmTyMtg+cXoQiZGz9BOkzxA0N VOLAGJ/toSYttSl9bB62YRsRUMBFXsS7T59vvxX621KzFxsxtilvH3q0iZpM6jiTtU9Sc/1L GGQRwXT1U/TuejbKCxotdKT2FeRZKenQcgLjboECN7fsRh3I/BiFslmGeIC/FoZmC00Cc50Y 4kvrKFP5J7qwigExZWb761EDIjJQjRLAZsmY3AAAAAAAAA== --------------ms060901090108060206010307-- From david@fromorbit.com Thu Sep 25 16:03:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 1AAE47FD0 for ; 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Fri, 26 Sep 2014 07:03:30 +1000 Date: Fri, 26 Sep 2014 07:03:30 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/3] xfs: consider freeze levels in xfs_fs_writable() Message-ID: <20140925210330.GG4945@dastard> X-ASG-Orig-Subj: Re: [PATCH 1/3] xfs: consider freeze levels in xfs_fs_writable() References: <1411647632-28240-1-git-send-email-david@fromorbit.com> <1411647632-28240-2-git-send-email-david@fromorbit.com> <20140925161756.GA25798@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140925161756.GA25798@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1411679014 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9877 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Sep 25, 2014 at 09:17:56AM -0700, Christoph Hellwig wrote: > > index d36bdbc..9073895 100644 > > --- a/fs/xfs/xfs_mount.c > > +++ b/fs/xfs/xfs_mount.c > > @@ -607,7 +607,7 @@ xfs_mount_reset_sbqflags( > > * If the fs is readonly, let the incore superblock run > > * with quotas off but don't flush the update out to disk > > */ > > - if (mp->m_flags & XFS_MOUNT_RDONLY) > > + if (!xfs_fs_writable(mp, SB_UNFROZEN)) > > This adds a new caller of xfs_fs_writable, which isn't mentioned in the > changelog. I can mention it, but it's so trivial I didn't think it was worth it. > > + /* > > + * We can be called during the fs freeze process, and we need to be > > + * able to write the superblock in that case. > > + */ > > + if (!xfs_fs_writable(mp, SB_FREEZE_FS)) > > return 0; > > And this already changes the checked freeze level, also not mentioned. The changelog says "Hence allow the caller to pass in the freeze level it is allowed to write" which is exactly what this code is doing. Cheers, Dave. -- Dave Chinner david@fromorbit.com From sandeen@sandeen.net Thu Sep 25 16:06:00 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id DCB367FD3 for ; Thu, 25 Sep 2014 16:05:59 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 7A7E6AC001 for ; Thu, 25 Sep 2014 14:05:56 -0700 (PDT) X-ASG-Debug-ID: 1411679154-04bdf003a02bc1f0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id 681CBNxsEZkjgP9b for ; Thu, 25 Sep 2014 14:05:54 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id EE24863BEC36; Thu, 25 Sep 2014 16:05:53 -0500 (CDT) Message-ID: <542483B3.3070104@sandeen.net> Date: Thu, 25 Sep 2014 16:05:55 -0500 From: Eric Sandeen MIME-Version: 1.0 To: "Gamel Anton J." , xfs@oss.sgi.com Subject: Re: irregular mkfs.xfs results on identical HW References: <54247484.2030808@physik.uni-freiburg.de> X-ASG-Orig-Subj: Re: irregular mkfs.xfs results on identical HW In-Reply-To: <54247484.2030808@physik.uni-freiburg.de> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1411679154 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9877 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/25/14 3:01 PM, Gamel Anton J. wrote: > Dear all, > > servers with identical disk setup (HW RAID0 H310a): and identical xfsprogs versions? Are these linux boxes? > Disk /dev/sda: 598.9 GB, 598879502336 bytes > /dev/sda1 1 49152 394813439+ 82 Linux swap / Solaris > /dev/sda2 49153 50176 8225280 83 Linux > /dev/sda3 6399 72809 533446357+ 44 Unknown > > mkfs.xfs creates on 28 of them: > meta-data=/dev/sda3 isize=256 agcount=16, agsize=8335099 blks agcount was higher on older mkfs's... > = sectsz=512 attr=1, projid32bit=0 attr=1? that looks ancient. The only way to override the default (2) is with a commandline argument, unless your mkfs is so old that it has different defaults. check your xfsprogs versions on both hosts. -Eric > data = bsize=4096 blocks=133361584, imaxpct=25 > = sunit=0 swidth=0 blks > naming =version 2 bsize=4096 ascii-ci=0 > log =internal bsize=4096 blocks=32768, version=1 > = sectsz=512 sunit=0 blks, lazy-count=1 > realtime =none extsz=4096 blocks=0, rtextents=0 > > but on four out of them: > meta-data=/dev/sda3 isize=256 agcount=4, agsize=33340398 blks > = sectsz=512 attr=2, projid32bit=0 > data = bsize=4096 blocks=133361589, imaxpct=25 > = sunit=0 swidth=0 blks > naming =version 2 bsize=4096 ascii-ci=0 > log =internal bsize=4096 blocks=65117, version=2 > = sectsz=512 sunit=0 blks, lazy-count=1 > realtime =none extsz=4096 blocks=0, rtextents=0 > > I did not find a way to add mkfs.xfs options to get the identical > filesystem setup on all nodes, e.g. > # mkfs.xfs -d agcount=16 -b size=4096 /dev/sda3 -f > meta-data=/dev/sda3 isize=256 agcount=16, agsize=8335100 blks > = sectsz=512 attr=2, projid32bit=0 > data = bsize=4096 blocks=133361589, imaxpct=25 > = sunit=0 swidth=0 blks > naming =version 2 bsize=4096 ascii-ci=0 > log =internal log bsize=4096 blocks=65117, version=2 > = sectsz=512 sunit=0 blks, lazy-count=1 > realtime =none extsz=4096 blocks=0, rtextents=0 > > The only way it worked was to dump nodeA:/dev/sda3 to nodeB:/dev/sda3 > Is there an explanation? May be I missed something ... hints? > > Cheers and thanks in advance > > Anton > > > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs > From david@fromorbit.com Thu Sep 25 16:19:06 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id B4C607FD5 for ; Thu, 25 Sep 2014 16:19:06 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id A1A45304039 for ; Thu, 25 Sep 2014 14:19:06 -0700 (PDT) X-ASG-Debug-ID: 1411679943-04cb6c50e628b720001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id 8mx9p7RODCMEtGJ7 for ; Thu, 25 Sep 2014 14:19:04 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ai83AKOFJFR5LHimPGdsb2JhbABggw6BKoIxhQeudgEBAQEBAQaWE4VrBAICgQUXAQYBAQEBODmEAwEBAQMBOhwjBQsIAxgJJQ8FJQMHGhOINgfBbQEXGIV6iUNJB4RLBZ0il0EggWsrL4EHgUMBAQE Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail05.adl6.internode.on.net with ESMTP; 26 Sep 2014 06:49:03 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XXGRJ-0008Bs-TH; Fri, 26 Sep 2014 07:19:01 +1000 Date: Fri, 26 Sep 2014 07:19:01 +1000 From: Dave Chinner To: "Gamel Anton J." Cc: xfs@oss.sgi.com Subject: Re: irregular mkfs.xfs results on identical HW Message-ID: <20140925211901.GH4945@dastard> X-ASG-Orig-Subj: Re: irregular mkfs.xfs results on identical HW References: <54247484.2030808@physik.uni-freiburg.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <54247484.2030808@physik.uni-freiburg.de> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1411679943 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9878 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header On Thu, Sep 25, 2014 at 10:01:08PM +0200, Gamel Anton J. wrote: > Dear all, > > servers with identical disk setup (HW RAID0 H310a): > > Disk /dev/sda: 598.9 GB, 598879502336 bytes > /dev/sda1 1 49152 394813439+ 82 Linux swap / Solaris > /dev/sda2 49153 50176 8225280 83 Linux > /dev/sda3 6399 72809 533446357+ 44 Unknown > > mkfs.xfs creates on 28 of them: > meta-data=/dev/sda3 isize=256 agcount=16, agsize=8335099 blks > = sectsz=512 attr=1, projid32bit=0 > data = bsize=4096 blocks=133361584, imaxpct=25 > = sunit=0 swidth=0 blks > naming =version 2 bsize=4096 ascii-ci=0 > log =internal bsize=4096 blocks=32768, version=1 > = sectsz=512 sunit=0 blks, lazy-count=1 > realtime =none extsz=4096 blocks=0, rtextents=0 THat's clearly an old version of mkfs - it's selected version 1 logs and attr1 by default and a log size of only 128MB. mkfs.xfs has defaulted to v2 logs since 3.0.0 (2007). > but on four out of them: > meta-data=/dev/sda3 isize=256 agcount=4, agsize=33340398 blks > = sectsz=512 attr=2, projid32bit=0 > data = bsize=4096 blocks=133361589, imaxpct=25 > = sunit=0 swidth=0 blks > naming =version 2 bsize=4096 ascii-ci=0 > log =internal bsize=4096 blocks=65117, version=2 > = sectsz=512 sunit=0 blks, lazy-count=1 > realtime =none extsz=4096 blocks=0, rtextents=0 Clearly much newer - attr2, log v2, log larger than 128MB... mkfs.xfs -V on each of the nodes will tell you that they are running different versions of mkfs, I think. > The only way it worked was to dump nodeA:/dev/sda3 to nodeB:/dev/sda3 > Is there an explanation? May be I missed something ... hints? If you are building a new storage system, then I'd highly recommend all the nodes run the same software and that software is the newest possible release you can get.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Sep 25 17:22:30 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2AD987FD0 for ; Thu, 25 Sep 2014 17:22:30 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 0AC2C8F8035 for ; Thu, 25 Sep 2014 15:22:26 -0700 (PDT) X-ASG-Debug-ID: 1411683744-04cb6c50e429af80001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id v1UNEsyS9JaWrRMR for ; Thu, 25 Sep 2014 15:22:25 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AkQ0ABmVJFR5LHimPGdsb2JhbABgDoMAgSqCMYUHrnUBAQEBAQEGiB2DDooqhWsEAgKBBRcBBgEBAQE4OYQDAQEBAwE6HCMFCwgDGAklDwUlAwcaE4g2B8FmGBiFeok/TQeESwWdIoxCBIw0UisvgQeBQwEBAQ Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail05.adl6.internode.on.net with ESMTP; 26 Sep 2014 07:52:23 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XXHQb-0008Oj-Mu; Fri, 26 Sep 2014 08:22:21 +1000 Date: Fri, 26 Sep 2014 08:22:21 +1000 From: Dave Chinner To: Theodore Ts'o Cc: Jan Kara , Christoph Hellwig , adilger@dilger.ca, linux-api@vger.kernel.org, xfs@oss.sgi.com, dmonakhov@openvz.org, viro@zeniv.linux.org.uk, Li Xi , linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org Subject: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project Message-ID: <20140925222221.GI4945@dastard> X-ASG-Orig-Subj: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project References: <1411567470-31799-1-git-send-email-lixi@ddn.com> <1411567470-31799-5-git-send-email-lixi@ddn.com> <20140924162507.GC27000@quack.suse.cz> <20140924162634.GA16886@infradead.org> <20140924170105.GE27000@quack.suse.cz> <20140925075912.GG4758@dastard> <20140925134136.GE4592@thunk.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140925134136.GE4592@thunk.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1411683744 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9880 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Sep 25, 2014 at 09:41:37AM -0400, Theodore Ts'o wrote: > On Thu, Sep 25, 2014 at 05:59:12PM +1000, Dave Chinner wrote: > > > Also I'm afraid we may quickly run out of > > > 32 available flags in xflags so we'd need to extend that. But all this > > > seems to be doable. > > > > The struct fsxattr was designed to be extensible - it has unused > > padding and enough space in the flags field to allow us to > > conditionally use that padding.... > > I agree that it would be useful for ext4 to support as much of the > XFS_IOC_GETXATTR/XFS_IOC_SETATTR as would make sense for ext4, and to > use that to set/get the project ID. (And that we should probably do > that as a separate set of patches that we could potentially go into > ext4 ahead of the project quota while it is undergoing testing and > review.) > > A few questions of Dave and other XFS folks: > > 1) If we only implement a partial set of the flags or other > functionality, are there going to be tools that get confused? i.e., > are there any userspace programs that will test for whether the ioctl > is supported, and then assume that some minimal set of functionality > must be implemented? No, I don't think they will get confused. The use of the flags is get/modify/set just like other flag setting functions. The extsize and projid fields are condition on the relevant flag being set on return from a get (i.e. projid is only valid if XFS_XFLAG_PROJID[_INHERIT] is set), and those fields are only considered valid on set if those flags are set by the application (or remain set as a result of the getxattr). Hence the applications that use the getxattr/setxattr interface correctly shouldn't care what set of flags and values the filesystem supports other than the specific flags the application needs the filesystem to understand. > 2) Unless I'm missing something, there is nothing that enforces that > fsx_pad must be zero. I assume that means that the only way you can > expand use of fields into that space is via a flag bit being consumed? Yup, that's exactly what I meant by "conditionally use the padding". Even if the padding was guaranteed to be zero, I'd strongly recommend a flag bit to indicate the application understands that the padding region has actual meaning to guard against buggy applications. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Sep 25 17:42:30 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4B1477FDA for ; Thu, 25 Sep 2014 17:42:30 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 18E158F8035 for ; Thu, 25 Sep 2014 15:42:29 -0700 (PDT) X-ASG-Debug-ID: 1411684947-04bdf003a22d19c0001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id GWYiDD27zsQetr39 for ; Thu, 25 Sep 2014 15:42:28 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AkQ0AMqZJFR5LHimPGdsb2JhbABggw6BKoIxhQeudQEBAQEBAQaIHYMOiiqFawQCAoEFFwEGAQEBATg5hAMBAQEDAScTHCMQCAMOCgklDwUlAwcaE4g2B8FlGBiFeok/TQeESwWdIoxCBIp5gg0rL4EHgUMBAQE Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail05.adl6.internode.on.net with ESMTP; 26 Sep 2014 08:12:26 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XXHk1-0008Qq-EX; Fri, 26 Sep 2014 08:42:25 +1000 Date: Fri, 26 Sep 2014 08:42:25 +1000 From: Dave Chinner To: Jan Kara Cc: Christoph Hellwig , adilger@dilger.ca, linux-api@vger.kernel.org, xfs@oss.sgi.com, dmonakhov@openvz.org, viro@zeniv.linux.org.uk, Li Xi , linux-fsdevel@vger.kernel.org, tytso@mit.edu, linux-ext4@vger.kernel.org Subject: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project Message-ID: <20140925224225.GJ4945@dastard> X-ASG-Orig-Subj: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project References: <1411567470-31799-1-git-send-email-lixi@ddn.com> <1411567470-31799-5-git-send-email-lixi@ddn.com> <20140924162507.GC27000@quack.suse.cz> <20140924162634.GA16886@infradead.org> <20140924170105.GE27000@quack.suse.cz> <20140925075912.GG4758@dastard> <20140925135213.GB15352@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140925135213.GB15352@quack.suse.cz> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1411684947 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9881 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Sep 25, 2014 at 03:52:13PM +0200, Jan Kara wrote: > On Thu 25-09-14 17:59:12, Dave Chinner wrote: > > On Wed, Sep 24, 2014 at 07:01:05PM +0200, Jan Kara wrote: > > > On Wed 24-09-14 09:26:34, Christoph Hellwig wrote: > > > > On Wed, Sep 24, 2014 at 06:25:07PM +0200, Jan Kara wrote: > > > > > On Wed 24-09-14 22:04:30, Li Xi wrote: > > > > > > This patch adds ioctl interface for setting/getting project of ext4. > > > > > The patch looks good to me. I was just wondering whether it won't be > > > > > useful to add an ioctl() which isn't ext4 specific. We could just extend > > > > > ->setattr() to allow setting of project ID (most filesystems would just > > > > > return -EOPNOTSUPP but ext4 and xfs could do the right thing) and then call > > > > > ->setattr from the generic ioctl. That way userspace won't have to care > > > > > about filesystem type when setting project ID... What do others think? > > > > > > > > Absolutely. In general I also wonder why this patch doesn't implement > > > > the full XFS API. Maybe there is a reason it was considered and > > > > rejected, but it would be helpful to document why. > > > Do you mean full get/setfsxattr API? > > > > That's a good start. > > > > The bigger issue in my mind is that we already have a fully featured > > quota API that supports project quotas and userspace tools available > > that manipulate it. xfstests already uses those tools and API > > for testing project quotas. > Well, the VFS quota API is trivially extended by adding additional quota > type so I don't really see about which reinventing of quota API are you > speaking here... It doesn't seem quite as trivial as you make out given all thei issues so far around increasing MAXQUOTA, the increase in size of the inode, etc. > > This whole patchset reinvents all the quota APIs, and will require > > adding support in userspace, and hence require re-inventing all the > > test infrastructure we already have because it won't be compatible > > with the existing project quota test code. > Well, quota-tools will have to extended to know about the new quota type. > Yes. But that's easy to do. I think teaching xfs quota tools to work with > ext4 will be a bigger project plus I don't think I want to force sysadmins > which are used to work with quota-tools to switch to other utilities just > because of project quotas. > > Regarding xfstests - I've checked and most of the project quota tests in > xfs directory aren't directly usable for ext4 anyway because of other > functionality ext4 doesn't support. So we'll need to distill the least > common denominator from them anyway... I just did a quick scan - of the ~13 tests in tests/xfs that exercise project quotas, only 2 of them test things that are xfs specific (e.g. use xfs_db to peer at things, or use xfs_admin, etc). The rest all rely on xfs_quota to manage and configure project quotas but otherwise don't do anything XFS specific. We want project quotas to have the same management interface for administrators regardless of the filesystem they are using. The only way we can do that is to ensure that the same tools work on either filesystem, and right now it seems to me that the ext4 NIH syndrome is winning out over what is best for our users... Look, I have no problems with extending the existing quota interfaces to support project quotas, but that should be a *secondary* improvement as userspace tools are updated. The primary goal needs to be "works identically to XFS" and so it needs to implement the interfaces that are currently used for management so that we can actually test that it does work identically. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Sep 25 19:18:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 3B35E7FDD for ; Thu, 25 Sep 2014 19:18:39 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 29EAD8F8033 for ; Thu, 25 Sep 2014 17:18:36 -0700 (PDT) X-ASG-Debug-ID: 1411690712-04cbb07303398c80001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id 2DjEf0eNsytVHvOw for ; Thu, 25 Sep 2014 17:18:33 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AlI0AA2wJFR5LHimPGdsb2JhbABggw6BKoIxUIQ3rnkBAQEBAQEGiB2DDooqhWsEAgKBAhcBBgEBAQE4OYQDAQEBAwEjDwEjIwULCAMYAgIFIQICDwUlAwcaEx+IFwerX5YqGIEUhGaEGIUnTQeCeIFTBZ0ijEIEinmCDSsvgQeBQwEBAQ Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail05.adl6.internode.on.net with ESMTP; 26 Sep 2014 09:40:51 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XXJ7Z-0000B7-T4; Fri, 26 Sep 2014 10:10:49 +1000 Date: Fri, 26 Sep 2014 10:10:49 +1000 From: Dave Chinner To: lixi Cc: Jan Kara , Christoph Hellwig , Andreas Dilger , linux-api@vger.kernel.org, xfs@oss.sgi.com, Dmitry Monakhov , viro@zeniv.linux.org.uk, linux-fsdevel@vger.kernel.org, Theodore Ts'o , Ext4 Developers List Subject: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project Message-ID: <20140926001049.GK4945@dastard> X-ASG-Orig-Subj: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project References: <1411567470-31799-1-git-send-email-lixi@ddn.com> <1411567470-31799-5-git-send-email-lixi@ddn.com> <20140924162507.GC27000@quack.suse.cz> <20140924162634.GA16886@infradead.org> <20140924170105.GE27000@quack.suse.cz> <20140925075912.GG4758@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1411690712 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9886 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Sep 25, 2014 at 07:34:38PM +0800, lixi wrote: > Hi Dave, > > I was mostly working on the semantics of inherit flag on these patches. And > I didn’t realized that the interface differences would bother you so much. Sorry > for that. It's not the differences that bother me - it's the fact that I was repeatedly ignored until someone else raised the same issue.... > I agree that we should choose a good interface. It would be good that it is > general so that it works well for all file systems. I agree that adding an > ext4 specific ioctl() is far from the best choice. I am willing to change it to > any general interface. A general ioctl() sounds good to me. Extend setattr() > and getattr() for project ID sounds even better, since project ID looks like > UID/GID. Ah, no, project ID is not a uid/gid. It's a completely independent construct. [ Which brings me to, once again, the issue of being ignored during reviews: project IDs should not be mapped by user namespaces, nor be accessible from anything other than the init namespace. In XFS we've turned off access to project IDs within namespace containers because they are used for container space management (i.e. by the init namespace) to manage the amount of filesystem space a container or set of containers can use. We do not want project IDs to be manipulated from within such containers, and therefore have to prevent access to them from within user namespaces. ] > And general xattr name is another choice. But it is might be a little > bit confusing if we use xattr actually, since we are not saving project ID as > extended attribute on Ext4. Any choice is fine with me, as long as the > implementation won't introduce nasty codes or inconsistent design. We can easily create another ioctl name if we have to. It just needs sto be defined to the same value as the XFS ioctl names currently are. We've done this before when making ioctls that originated in XFS generic (e.g. with freeze/thaw ioctls).... > However, the problem is, I do not quite understand why we should keep > the interface exactly the same with XFS. It would be good if we can. But > as far as I can see, it seems hard. XFS uses a lot interfaces which are > not so standard and used by other file systems. For example, struct > fsxattr is not used by other file systems at all except XFS. Moving a existing structure definitions to a different header file is too hard? > I am not sure why we should introduce this into Ext4 if there are > a lot of other better ways. I would be happy to change to XFS > interfaces, if it is general. However, I don’t think it is > general enough. How is it not general enough? Examples, please, not handwaving: which bit of the quota interface can't ext4 use because it's XFS specific? We already have a perfectly functional interface and a large body of code that implements and tests it. You're saying "oh, it's too much work for me to implement an existing interface" and ignoring the fact that not implementing the existing interface forces a huge amount of downstream work. e.g. - we need completely new test infrastructure to replicate existing tests. - we need new tests to ensure the different APIs and utilities provide the same functionality, and that the work identically. - administrators are going to have to learn how ext4 is different to what they already know and understand. - administrators that has tools written to manage project quotas is going to have to rewrite them to support ext4. It's an entirely selfish argument that ignores what already existing out in userspace. i.e. you're saying that existing downstream users of project quotas simple don't matter to you... > I know xfstest is using the existing project quota interfaces of XFS. And > maybe there are some applications which are using them too. But > keeping the interfaces exactly the same with XFS would cost so much > effort that I’d like to get enough reasons before start working on it. Is it > really necessary? I am not so sure. You have to have a stronger argument than that to justify creating a new incompatible user interface. The XFS interfaces have been available for more than 10 years and support all the functionality ext4 requires. If it was any other userspace interface (e.g. syscalls) or any filesystem other than ext4 there would be people from all over telling you "use the existing interfaces!" and you'd need very strong reasons for creating a new one. i.e. you need to demonstrate that the existing interfaces are inadequate for the intended purpose of the new functionality. That's clearly not the case here so why should we allow you to create an incompatible userspace API rather than use the existing, fully functional API? > It is so easy to change user space applications comparing to > changing a weird interfaces. The existing generic quota tools (i.e quotactl, repquota, etc) already implement the XFS quota API to be able to query XFS filesystems. There's no "changing to wierd interfaces" necessary for userspace; it's already all there. Hence any work you do to add project quota awareness to those generic userspace tools will need to add the support to the XFS queries anyway. IOWs, you're not making it any easier for yourself in userspace by creating a new API for ext4 - it just doubles the amount of work you have to in userspace to make existing tools project quota aware. > For > example, I think it won’t cost even more than a day to add xfstest > support for new Ext4 project quota. A day of whose time? Ever thought about how much time it will take reviewers to look at your tests and iterate over them to get it all right? If you're introducing new userspace infrastructure that xfstests will need to depend on and test for, then it's a lot more than just writing new tests. Indeed, I'm likely to want new project quota tests to be generic (i.e. works and passes on any filesystem that supports project quotas) with the introduction of ext4 project quota support. It's the same functionality and so it should work the same just like user and group quotas do across all filesystems. > And since project quota is far from > a widely used feature, I don't think you realise quite how widespread it's use is on XFS. > I don’t think there is much compatibility problems > for existing applications. And If the new project interface are general > enough, there won’t be any compatibility problems for new applications > at all. Again, you are ignoring the compatibility problems with existing applications that are project quota aware. For them you are *creating new compatibility problems* by implementing a new interface. i.e. Existing applications will not work on ext4, and new applications written to work on ext4 won't work on XFS. That's the crux of the issue - we have existing applications using the existing interface and so introducing a new interface introduces compatibility problems. You can't just wave this problem away because you don't think the existing interface matters. "It's easier for me to create a new interface" is not a valid reason for creating a new interface.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Sep 25 20:59:42 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id DEFCA7FE0 for ; Thu, 25 Sep 2014 20:59:42 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id B023A8F8035 for ; Thu, 25 Sep 2014 18:59:42 -0700 (PDT) X-ASG-Debug-ID: 1411696774-04bdf0039f308a90001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id OyDZSEEPjHNnCZvW for ; Thu, 25 Sep 2014 18:59:34 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ar0eALDHJFR5LHimPGdsb2JhbABggw5TV4Ixs3QMAQEBAQEBBpN4gV2FawQCAoECFwEGAQEBATg5hAMBAQEDATocIxAIAw4KCSUPBSUDBxoTiDYHDsFVGBiFeod5ghMHhEsFlhqHCJlMKy8BgkkBAQE Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail05.adl6.internode.on.net with ESMTP; 26 Sep 2014 11:29:33 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XXKol-0000NY-P3; Fri, 26 Sep 2014 11:59:31 +1000 Date: Fri, 26 Sep 2014 11:59:31 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [RFC PATCH] xfs: borrow indirect blocks from freed extent when available Message-ID: <20140926015931.GL4945@dastard> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: borrow indirect blocks from freed extent when available References: <1411500538-6831-1-git-send-email-bfoster@redhat.com> <20140923215816.GC4322@dastard> <20140924122746.GA53094@bfoster.bfoster> <20140924233014.GB4758@dastard> <20140925150703.GB47304@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140925150703.GB47304@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1411696774 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9888 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Sep 25, 2014 at 11:07:04AM -0400, Brian Foster wrote: > On Thu, Sep 25, 2014 at 09:30:14AM +1000, Dave Chinner wrote: > > I knew I'd looked at this before: > > > > http://oss.sgi.com/archives/xfs/2014-03/msg00314.html > > > > That got lost because I wrote it in a topic branch and not my usual > > working branch, so when I dropped the topic branch. Guilt, however, > > keeps all the patches from topic branches around, and so when I just > > did a grep for da_new across .git/patch, this showed up. > > > > It's basically the same "steal blocks from the deleted extent > > reservation fix, and it was trying to address the above failure. > > However, there are some other details in it (like changing the > > location of delalloc accounting updates) that might be relevant. > > > > Ah, right. I thought I had seen something like this before. In fact I > had it in my head that we already did something like this when I > narrowed in on the code so I was somewhat surprised, but I didn't go > back and look through the list. That explains that. :) > > This version moves the entire delalloc accounting hunk after the > xfs_bmap_del_extent() call. I think the problem with that is the sb > counter is the only record keeping that encompasses data blocks and > indirect blocks, which is why I only moved that update in xfs_bunmapi(). > That's also precisely why I consider using a separate parameter rather > than updating br_blockcount. > > Let me know if you wanted to resurrect this one, otherwise I'll try to > double check all of that when I get back to reworking mine... It doesn't need to be resurrected if you've got a better fix. ;) > > I'm pretty sure the test case was simply something like: > > > > xfs_io -f -c "pwrite 0 1m" \ > > -c "fzero 4k 8k" \ > > -c "fzero 16k 8k" \ > > -c "fzero 32k 8k" \ > > -c "fzero 64k 8k" \ > > ..... > > > > To basically split the delalloc extent repeatedly and hence drain > > the reservation. > > > > Yep, thanks. I assume you saw the test I posted: > > http://oss.sgi.com/archives/xfs/2014-09/msg00371.html Yup, I did see that later in the day.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From dave@fromorbit.com Thu Sep 25 21:19:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id B54847FE2 for ; Thu, 25 Sep 2014 21:19:21 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 9B221304032 for ; Thu, 25 Sep 2014 19:19:21 -0700 (PDT) X-ASG-Debug-ID: 1411697959-04cb6c50e62bf730001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id V6TrmCnOkGMpe9b4 for ; Thu, 25 Sep 2014 19:19:19 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AsoUAG7MJFR5LHimPGdsb2JhbABggw6BKoc4rngBAQEBAQEGnEoXAQYBAQEBODmEBAEFJy8zCBgxOQMHFBmIPcF6hhKKKYQ1BYYmozeNESsvgkoBAQE Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail05.adl6.internode.on.net with ESMTP; 26 Sep 2014 11:49:16 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XXL7q-0000Rk-QE for xfs@oss.sgi.com; Fri, 26 Sep 2014 12:19:14 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XXL7q-0006S3-Pd for xfs@oss.sgi.com; Fri, 26 Sep 2014 12:19:14 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 2/5] xfs: recovery of XLOG_UNMOUNT_TRANS leaks memory Date: Fri, 26 Sep 2014 12:19:09 +1000 X-ASG-Orig-Subj: [PATCH 2/5] xfs: recovery of XLOG_UNMOUNT_TRANS leaks memory Message-Id: <1411697952-24741-3-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411697952-24741-1-git-send-email-david@fromorbit.com> References: <1411697952-24741-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1411697959 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9889 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner The XLOG_UNMOUNT_TRANS case skips the transaction, despite the fact an unmount record is always in a standalone transaction. Hence whenever we come across one of these we need to free the transaction structure associated with it as there is no commit record that follows it. Signed-off-by: Dave Chinner --- fs/xfs/xfs_log_recover.c | 27 +++++++++++++++------------ 1 file changed, 15 insertions(+), 12 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index b5e081b..685e98b 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -3532,6 +3532,9 @@ out: return error ? error : error2; } +/* + * On error or completion, trans is freed. + */ STATIC int xlog_recovery_process_trans( struct xlog *log, @@ -3541,7 +3544,8 @@ xlog_recovery_process_trans( unsigned int flags, int pass) { - int error = -EIO; + int error = 0; + bool freeit = false; /* mask off ophdr transaction container flags */ flags &= ~XLOG_END_TRANS; @@ -3563,18 +3567,19 @@ xlog_recovery_process_trans( /* unexpected flag values */ case XLOG_UNMOUNT_TRANS: + /* just skip trans */ xfs_warn(log->l_mp, "%s: Unmount LR", __func__); - error = 0; /* just skip trans */ + freeit = true; break; case XLOG_START_TRANS: - xfs_warn(log->l_mp, "%s: bad transaction", __func__); - ASSERT(0); - break; default: xfs_warn(log->l_mp, "%s: bad flag 0x%x", __func__, flags); ASSERT(0); + error = -EIO; break; } + if (error || freeit) + xlog_recover_free_trans(trans); return error; } @@ -3600,8 +3605,10 @@ xlog_recover_ophdr_to_trans( * on this opheader is allocate a new recovery container to hold * the recovery ops that will follow. */ - if (ohead->oh_flags & XLOG_START_TRANS) + if (ohead->oh_flags & XLOG_START_TRANS) { + ASSERT(be32_to_cpu(ohead->oh_len) == 0); xlog_recover_new_tid(rhp, tid, be64_to_cpu(rhead->h_lsn)); + } return NULL; } @@ -3616,7 +3623,6 @@ xlog_recover_process_ophdr( int pass) { struct xlog_recover *trans; - int error; unsigned int len; /* Do we understand who wrote this op? */ @@ -3644,11 +3650,8 @@ xlog_recover_process_ophdr( return 0; } - error = xlog_recovery_process_trans(log, trans, dp, len, - ohead->oh_flags, pass); - if (error) - xlog_recover_free_trans(trans); - return error; + return xlog_recovery_process_trans(log, trans, dp, len, + ohead->oh_flags, pass); } /* -- 2.0.0 From dave@fromorbit.com Thu Sep 25 21:19:24 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E78E37FEC for ; Thu, 25 Sep 2014 21:19:23 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id AB3CD304053 for ; Thu, 25 Sep 2014 19:19:20 -0700 (PDT) X-ASG-Debug-ID: 1411697957-04bdf003a230c5c0002-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id 0bVgMfoHVFvi8Ui2 for ; Thu, 25 Sep 2014 19:19:18 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AsoUAG7MJFR5LHimPGdsb2JhbABggw6BKoc4rngBAQEBAQEGnEoXAQYBAQEBODmEBAEFJy8zCBgxOQMHFBmIPcF6hhKOXgWGJrBIKy+CSgEBAQ Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail05.adl6.internode.on.net with ESMTP; 26 Sep 2014 11:49:16 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XXL7q-0000Rn-RW for xfs@oss.sgi.com; Fri, 26 Sep 2014 12:19:14 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XXL7q-0006SI-Qk for xfs@oss.sgi.com; Fri, 26 Sep 2014 12:19:14 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 5/5] xfs: refactor recovery transaction start handling Date: Fri, 26 Sep 2014 12:19:12 +1000 X-ASG-Orig-Subj: [PATCH 5/5] xfs: refactor recovery transaction start handling Message-Id: <1411697952-24741-6-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411697952-24741-1-git-send-email-david@fromorbit.com> References: <1411697952-24741-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1411697958 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9888 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner Rework the transaction lookup and allocation code in xlog_recovery_process_ophdr() to remove fold two related call-once helper functions into a single helper. Then fold in all XLOG_START_TRANS logic to that helper to clean up the remaining logic in xlog_recovery_process_ophdr(). Signed-off-by: Dave Chinner --- fs/xfs/xfs_log_recover.c | 77 +++++++++++++++++++++--------------------------- 1 file changed, 34 insertions(+), 43 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index e4fd4b1..6e861ba 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -3351,38 +3351,6 @@ out: return error ? error : error2; } - -STATIC xlog_recover_t * -xlog_recover_find_tid( - struct hlist_head *head, - xlog_tid_t tid) -{ - xlog_recover_t *trans; - - hlist_for_each_entry(trans, head, r_list) { - if (trans->r_log_tid == tid) - return trans; - } - return NULL; -} - -STATIC void -xlog_recover_new_tid( - struct hlist_head *head, - xlog_tid_t tid, - xfs_lsn_t lsn) -{ - xlog_recover_t *trans; - - trans = kmem_zalloc(sizeof(xlog_recover_t), KM_SLEEP); - trans->r_log_tid = tid; - trans->r_lsn = lsn; - INIT_LIST_HEAD(&trans->r_itemq); - - INIT_HLIST_NODE(&trans->r_list); - hlist_add_head(&trans->r_list, head); -} - STATIC void xlog_recover_add_item( struct list_head *head) @@ -3505,6 +3473,7 @@ xlog_recover_add_to_trans( trace_xfs_log_recover_item_add(log, trans, item, 0); return 0; } + /* * Free up any resources allocated by the transaction * @@ -3587,6 +3556,13 @@ xlog_recovery_process_trans( return error; } +/* + * Lookup the transaction recovery structure associated with the ID in the + * current ophdr. If the transaction doesn't exist and the start flag is set in + * the ophdr, then allocate a new transaction for future ID matches to find. + * Either way, return what we found during the lookup - an existing transaction + * or nothing. + */ STATIC struct xlog_recover * xlog_recover_ophdr_to_trans( struct hlist_head rhash[], @@ -3599,20 +3575,35 @@ xlog_recover_ophdr_to_trans( tid = be32_to_cpu(ohead->oh_tid); rhp = &rhash[XLOG_RHASH(tid)]; - trans = xlog_recover_find_tid(rhp, tid); - if (trans) - return trans; + hlist_for_each_entry(trans, rhp, r_list) { + if (trans->r_log_tid == tid) + return trans; + } /* - * If this is a new transaction, the ophdr only contains the - * start record. In that case, the only processing we need to do - * on this opheader is allocate a new recovery container to hold - * the recovery ops that will follow. + * skip over non-start transaction headers - we could be + * processing slack space before the next transaction starts + */ + if (!(ohead->oh_flags & XLOG_START_TRANS)) + return NULL; + + ASSERT(be32_to_cpu(ohead->oh_len) == 0); + + /* + * This is a new transaction so allocate a new recovery container to + * hold the recovery ops that will follow. + */ + trans = kmem_zalloc(sizeof(struct xlog_recover), KM_SLEEP); + trans->r_log_tid = tid; + trans->r_lsn = be64_to_cpu(rhead->h_lsn); + INIT_LIST_HEAD(&trans->r_itemq); + INIT_HLIST_NODE(&trans->r_list); + hlist_add_head(&trans->r_list, rhp); + + /* + * Nothing more to do for this ophdr. Items to be added to this new + * transaction will be in subsequent ophdr containers. */ - if (ohead->oh_flags & XLOG_START_TRANS) { - ASSERT(be32_to_cpu(ohead->oh_len) == 0); - xlog_recover_new_tid(rhp, tid, be64_to_cpu(rhead->h_lsn)); - } return NULL; } -- 2.0.0 From dave@fromorbit.com Thu Sep 25 21:19:24 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B7D557FEC for ; Thu, 25 Sep 2014 21:19:24 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 97B358F8035 for ; Thu, 25 Sep 2014 19:19:21 -0700 (PDT) X-ASG-Debug-ID: 1411697957-04bdf003a230c5c0003-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id kixLZU78qW3A15Uk for ; Thu, 25 Sep 2014 19:19:20 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AsoUAG7MJFR5LHimPGdsb2JhbABggw6BKoc4rngBAQEBAQEGnEoXAQYBAQEBODmEBAEFJy8zCBgxOQMHFBmIPcF6hhKKKYQ1BaldjRErL4JKAQEB Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail05.adl6.internode.on.net with ESMTP; 26 Sep 2014 11:49:16 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XXL7q-0000Rl-QX for xfs@oss.sgi.com; Fri, 26 Sep 2014 12:19:14 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XXL7q-0006S8-Px for xfs@oss.sgi.com; Fri, 26 Sep 2014 12:19:14 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 3/5] xfs: fix double free in xlog_recover_commit_trans Date: Fri, 26 Sep 2014 12:19:10 +1000 X-ASG-Orig-Subj: [PATCH 3/5] xfs: fix double free in xlog_recover_commit_trans Message-Id: <1411697952-24741-4-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411697952-24741-1-git-send-email-david@fromorbit.com> References: <1411697952-24741-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1411697959 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 2.60 X-Barracuda-Spam-Status: No, SCORE=2.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MV0249, MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9888 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words 2.00 BSF_SC0_MV0249 Custom rule MV0249 From: Dave Chinner When an error occurs during buffer submission in xlog_recover_commit_trans(), we free the trans structure twice. Fix it by only freeing the structure in the caller regardless of the success or failure of the function. Signed-off-by: Dave Chinner --- fs/xfs/xfs_log_recover.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 685e98b..28eb078 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -3526,8 +3526,6 @@ out: if (!list_empty(&done_list)) list_splice_init(&done_list, &trans->r_itemq); - xlog_recover_free_trans(trans); - error2 = xfs_buf_delwri_submit(&buffer_list); return error ? error : error2; } @@ -3552,6 +3550,10 @@ xlog_recovery_process_trans( if (flags & XLOG_WAS_CONT_TRANS) flags &= ~XLOG_CONTINUE_TRANS; + /* + * Callees must not free the trans structure. We'll decide if we need to + * free it or not based on the operation being done and it's result. + */ switch (flags) { /* expected flag values */ case 0: @@ -3563,6 +3565,8 @@ xlog_recovery_process_trans( break; case XLOG_COMMIT_TRANS: error = xlog_recover_commit_trans(log, trans, pass); + /* success or fail, we are now done with this transaction. */ + freeit = true; break; /* unexpected flag values */ -- 2.0.0 From dave@fromorbit.com Thu Sep 25 21:19:23 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C543D7FE2 for ; Thu, 25 Sep 2014 21:19:23 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id AA8F330404E for ; Thu, 25 Sep 2014 19:19:23 -0700 (PDT) X-ASG-Debug-ID: 1411697959-04cb6c50e62bf730002-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id l5UCyYnrCwqdwA65 for ; Thu, 25 Sep 2014 19:19:21 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AsoUAG7MJFR5LHimPGdsb2JhbABggw6BKoc4rngBAQEBAQEGnEoXAQYBAQEBODmEBAEFJy8zCBgxOQMHFBmIPcF6hhKOXgWGJq49IIFrKy+CSgEBAQ Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail05.adl6.internode.on.net with ESMTP; 26 Sep 2014 11:49:16 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XXL7q-0000Rm-R0 for xfs@oss.sgi.com; Fri, 26 Sep 2014 12:19:14 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XXL7q-0006SD-QL for xfs@oss.sgi.com; Fri, 26 Sep 2014 12:19:14 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 4/5] xfs: reorganise transaction recovery item code Date: Fri, 26 Sep 2014 12:19:11 +1000 X-ASG-Orig-Subj: [PATCH 4/5] xfs: reorganise transaction recovery item code Message-Id: <1411697952-24741-5-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411697952-24741-1-git-send-email-david@fromorbit.com> References: <1411697952-24741-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1411697960 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9889 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner The code for managing transactions anf the items for recovery is spread across 3 different locations in the file. Move them all together so that it is easy to read the code without needing to jump long distances in the file. Signed-off-by: Dave Chinner --- fs/xfs/xfs_log_recover.c | 358 +++++++++++++++++++++++------------------------ 1 file changed, 179 insertions(+), 179 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 28eb078..e4fd4b1 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -1443,160 +1443,6 @@ xlog_clear_stale_blocks( ****************************************************************************** */ -STATIC xlog_recover_t * -xlog_recover_find_tid( - struct hlist_head *head, - xlog_tid_t tid) -{ - xlog_recover_t *trans; - - hlist_for_each_entry(trans, head, r_list) { - if (trans->r_log_tid == tid) - return trans; - } - return NULL; -} - -STATIC void -xlog_recover_new_tid( - struct hlist_head *head, - xlog_tid_t tid, - xfs_lsn_t lsn) -{ - xlog_recover_t *trans; - - trans = kmem_zalloc(sizeof(xlog_recover_t), KM_SLEEP); - trans->r_log_tid = tid; - trans->r_lsn = lsn; - INIT_LIST_HEAD(&trans->r_itemq); - - INIT_HLIST_NODE(&trans->r_list); - hlist_add_head(&trans->r_list, head); -} - -STATIC void -xlog_recover_add_item( - struct list_head *head) -{ - xlog_recover_item_t *item; - - item = kmem_zalloc(sizeof(xlog_recover_item_t), KM_SLEEP); - INIT_LIST_HEAD(&item->ri_list); - list_add_tail(&item->ri_list, head); -} - -STATIC int -xlog_recover_add_to_cont_trans( - struct xlog *log, - struct xlog_recover *trans, - xfs_caddr_t dp, - int len) -{ - xlog_recover_item_t *item; - xfs_caddr_t ptr, old_ptr; - int old_len; - - if (list_empty(&trans->r_itemq)) { - /* finish copying rest of trans header */ - xlog_recover_add_item(&trans->r_itemq); - ptr = (xfs_caddr_t) &trans->r_theader + - sizeof(xfs_trans_header_t) - len; - memcpy(ptr, dp, len); /* d, s, l */ - return 0; - } - /* take the tail entry */ - item = list_entry(trans->r_itemq.prev, xlog_recover_item_t, ri_list); - - old_ptr = item->ri_buf[item->ri_cnt-1].i_addr; - old_len = item->ri_buf[item->ri_cnt-1].i_len; - - ptr = kmem_realloc(old_ptr, len+old_len, old_len, KM_SLEEP); - memcpy(&ptr[old_len], dp, len); /* d, s, l */ - item->ri_buf[item->ri_cnt-1].i_len += len; - item->ri_buf[item->ri_cnt-1].i_addr = ptr; - trace_xfs_log_recover_item_add_cont(log, trans, item, 0); - return 0; -} - -/* - * The next region to add is the start of a new region. It could be - * a whole region or it could be the first part of a new region. Because - * of this, the assumption here is that the type and size fields of all - * format structures fit into the first 32 bits of the structure. - * - * This works because all regions must be 32 bit aligned. Therefore, we - * either have both fields or we have neither field. In the case we have - * neither field, the data part of the region is zero length. We only have - * a log_op_header and can throw away the header since a new one will appear - * later. If we have at least 4 bytes, then we can determine how many regions - * will appear in the current log item. - */ -STATIC int -xlog_recover_add_to_trans( - struct xlog *log, - struct xlog_recover *trans, - xfs_caddr_t dp, - int len) -{ - xfs_inode_log_format_t *in_f; /* any will do */ - xlog_recover_item_t *item; - xfs_caddr_t ptr; - - if (!len) - return 0; - if (list_empty(&trans->r_itemq)) { - /* we need to catch log corruptions here */ - if (*(uint *)dp != XFS_TRANS_HEADER_MAGIC) { - xfs_warn(log->l_mp, "%s: bad header magic number", - __func__); - ASSERT(0); - return -EIO; - } - if (len == sizeof(xfs_trans_header_t)) - xlog_recover_add_item(&trans->r_itemq); - memcpy(&trans->r_theader, dp, len); /* d, s, l */ - return 0; - } - - ptr = kmem_alloc(len, KM_SLEEP); - memcpy(ptr, dp, len); - in_f = (xfs_inode_log_format_t *)ptr; - - /* take the tail entry */ - item = list_entry(trans->r_itemq.prev, xlog_recover_item_t, ri_list); - if (item->ri_total != 0 && - item->ri_total == item->ri_cnt) { - /* tail item is in use, get a new one */ - xlog_recover_add_item(&trans->r_itemq); - item = list_entry(trans->r_itemq.prev, - xlog_recover_item_t, ri_list); - } - - if (item->ri_total == 0) { /* first region to be added */ - if (in_f->ilf_size == 0 || - in_f->ilf_size > XLOG_MAX_REGIONS_IN_ITEM) { - xfs_warn(log->l_mp, - "bad number of regions (%d) in inode log format", - in_f->ilf_size); - ASSERT(0); - kmem_free(ptr); - return -EIO; - } - - item->ri_total = in_f->ilf_size; - item->ri_buf = - kmem_zalloc(item->ri_total * sizeof(xfs_log_iovec_t), - KM_SLEEP); - } - ASSERT(item->ri_total > item->ri_cnt); - /* Description region is ri_buf[0] */ - item->ri_buf[item->ri_cnt].i_addr = ptr; - item->ri_buf[item->ri_cnt].i_len = len; - item->ri_cnt++; - trace_xfs_log_recover_item_add(log, trans, item, 0); - return 0; -} - /* * Sort the log items in the transaction. * @@ -3252,31 +3098,6 @@ xlog_recover_do_icreate_pass2( return 0; } -/* - * Free up any resources allocated by the transaction - * - * Remember that EFIs, EFDs, and IUNLINKs are handled later. - */ -STATIC void -xlog_recover_free_trans( - struct xlog_recover *trans) -{ - xlog_recover_item_t *item, *n; - int i; - - list_for_each_entry_safe(item, n, &trans->r_itemq, ri_list) { - /* Free the regions in the item. */ - list_del(&item->ri_list); - for (i = 0; i < item->ri_cnt; i++) - kmem_free(item->ri_buf[i].i_addr); - /* Free the item itself */ - kmem_free(item->ri_buf); - kmem_free(item); - } - /* Free the transaction recover structure */ - kmem_free(trans); -} - STATIC void xlog_recover_buffer_ra_pass2( struct xlog *log, @@ -3530,6 +3351,185 @@ out: return error ? error : error2; } + +STATIC xlog_recover_t * +xlog_recover_find_tid( + struct hlist_head *head, + xlog_tid_t tid) +{ + xlog_recover_t *trans; + + hlist_for_each_entry(trans, head, r_list) { + if (trans->r_log_tid == tid) + return trans; + } + return NULL; +} + +STATIC void +xlog_recover_new_tid( + struct hlist_head *head, + xlog_tid_t tid, + xfs_lsn_t lsn) +{ + xlog_recover_t *trans; + + trans = kmem_zalloc(sizeof(xlog_recover_t), KM_SLEEP); + trans->r_log_tid = tid; + trans->r_lsn = lsn; + INIT_LIST_HEAD(&trans->r_itemq); + + INIT_HLIST_NODE(&trans->r_list); + hlist_add_head(&trans->r_list, head); +} + +STATIC void +xlog_recover_add_item( + struct list_head *head) +{ + xlog_recover_item_t *item; + + item = kmem_zalloc(sizeof(xlog_recover_item_t), KM_SLEEP); + INIT_LIST_HEAD(&item->ri_list); + list_add_tail(&item->ri_list, head); +} + +STATIC int +xlog_recover_add_to_cont_trans( + struct xlog *log, + struct xlog_recover *trans, + xfs_caddr_t dp, + int len) +{ + xlog_recover_item_t *item; + xfs_caddr_t ptr, old_ptr; + int old_len; + + if (list_empty(&trans->r_itemq)) { + /* finish copying rest of trans header */ + xlog_recover_add_item(&trans->r_itemq); + ptr = (xfs_caddr_t) &trans->r_theader + + sizeof(xfs_trans_header_t) - len; + memcpy(ptr, dp, len); + return 0; + } + /* take the tail entry */ + item = list_entry(trans->r_itemq.prev, xlog_recover_item_t, ri_list); + + old_ptr = item->ri_buf[item->ri_cnt-1].i_addr; + old_len = item->ri_buf[item->ri_cnt-1].i_len; + + ptr = kmem_realloc(old_ptr, len+old_len, old_len, KM_SLEEP); + memcpy(&ptr[old_len], dp, len); + item->ri_buf[item->ri_cnt-1].i_len += len; + item->ri_buf[item->ri_cnt-1].i_addr = ptr; + trace_xfs_log_recover_item_add_cont(log, trans, item, 0); + return 0; +} + +/* + * The next region to add is the start of a new region. It could be + * a whole region or it could be the first part of a new region. Because + * of this, the assumption here is that the type and size fields of all + * format structures fit into the first 32 bits of the structure. + * + * This works because all regions must be 32 bit aligned. Therefore, we + * either have both fields or we have neither field. In the case we have + * neither field, the data part of the region is zero length. We only have + * a log_op_header and can throw away the header since a new one will appear + * later. If we have at least 4 bytes, then we can determine how many regions + * will appear in the current log item. + */ +STATIC int +xlog_recover_add_to_trans( + struct xlog *log, + struct xlog_recover *trans, + xfs_caddr_t dp, + int len) +{ + xfs_inode_log_format_t *in_f; /* any will do */ + xlog_recover_item_t *item; + xfs_caddr_t ptr; + + if (!len) + return 0; + if (list_empty(&trans->r_itemq)) { + /* we need to catch log corruptions here */ + if (*(uint *)dp != XFS_TRANS_HEADER_MAGIC) { + xfs_warn(log->l_mp, "%s: bad header magic number", + __func__); + ASSERT(0); + return -EIO; + } + if (len == sizeof(xfs_trans_header_t)) + xlog_recover_add_item(&trans->r_itemq); + memcpy(&trans->r_theader, dp, len); + return 0; + } + + ptr = kmem_alloc(len, KM_SLEEP); + memcpy(ptr, dp, len); + in_f = (xfs_inode_log_format_t *)ptr; + + /* take the tail entry */ + item = list_entry(trans->r_itemq.prev, xlog_recover_item_t, ri_list); + if (item->ri_total != 0 && + item->ri_total == item->ri_cnt) { + /* tail item is in use, get a new one */ + xlog_recover_add_item(&trans->r_itemq); + item = list_entry(trans->r_itemq.prev, + xlog_recover_item_t, ri_list); + } + + if (item->ri_total == 0) { /* first region to be added */ + if (in_f->ilf_size == 0 || + in_f->ilf_size > XLOG_MAX_REGIONS_IN_ITEM) { + xfs_warn(log->l_mp, + "bad number of regions (%d) in inode log format", + in_f->ilf_size); + ASSERT(0); + kmem_free(ptr); + return -EIO; + } + + item->ri_total = in_f->ilf_size; + item->ri_buf = + kmem_zalloc(item->ri_total * sizeof(xfs_log_iovec_t), + KM_SLEEP); + } + ASSERT(item->ri_total > item->ri_cnt); + /* Description region is ri_buf[0] */ + item->ri_buf[item->ri_cnt].i_addr = ptr; + item->ri_buf[item->ri_cnt].i_len = len; + item->ri_cnt++; + trace_xfs_log_recover_item_add(log, trans, item, 0); + return 0; +} +/* + * Free up any resources allocated by the transaction + * + * Remember that EFIs, EFDs, and IUNLINKs are handled later. + */ +STATIC void +xlog_recover_free_trans( + struct xlog_recover *trans) +{ + xlog_recover_item_t *item, *n; + int i; + + list_for_each_entry_safe(item, n, &trans->r_itemq, ri_list) { + /* Free the regions in the item. */ + list_del(&item->ri_list); + for (i = 0; i < item->ri_cnt; i++) + kmem_free(item->ri_buf[i].i_addr); + /* Free the item itself */ + kmem_free(item->ri_buf); + kmem_free(item); + } + /* Free the transaction recover structure */ + kmem_free(trans); +} + /* * On error or completion, trans is freed. */ -- 2.0.0 From dave@fromorbit.com Thu Sep 25 21:19:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 6B54A7FF7 for ; Thu, 25 Sep 2014 21:19:25 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 17B57AC001 for ; Thu, 25 Sep 2014 19:19:24 -0700 (PDT) X-ASG-Debug-ID: 1411697957-04bdf003a230c5c0001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id cqhKsawIuzmlyazF for ; Thu, 25 Sep 2014 19:19:17 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Avk0AG7MJFR5LHimPGdsb2JhbABggw5TV7YYAgoMAQEBAQEBBnIBhGqOG4hSFwEGAQEBATg5hGA7gQIDB4hqDpwMpWCGEod5gjCENQWWGpNDimMBgi0rLwGCSQEBAQ Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail05.adl6.internode.on.net with ESMTP; 26 Sep 2014 11:49:16 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XXL7q-0000Ri-PW for xfs@oss.sgi.com; Fri, 26 Sep 2014 12:19:14 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XXL7q-0006Rv-Og for xfs@oss.sgi.com; Fri, 26 Sep 2014 12:19:14 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 0/5 v2] xfs: clean up xlog_recover_process_data Date: Fri, 26 Sep 2014 12:19:07 +1000 X-ASG-Orig-Subj: [PATCH 0/5 v2] xfs: clean up xlog_recover_process_data Message-Id: <1411697952-24741-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1411697957 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9888 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi folks, This is a new version of the log recovery transaction processing cleanup I first posted here: http://oss.sgi.com/archives/xfs/2014-08/msg00367.html It's largely the same, but there's been a couple of but fixes and rework done to it. Version 2 - use sizeof(variable) consistently - reworked transaction lookup factoring to encapsulate start ophdr processing completely. - re-ordered checks for opheader length validity to so we do all the ophdr validity checks before we try to process it. - added patch to re-integrate simple use-once functions to look up and allocate recovery transaction structures. -Dave. From dave@fromorbit.com Thu Sep 25 21:19:27 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1290D7FF3 for ; Thu, 25 Sep 2014 21:19:27 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 843D3AC001 for ; Thu, 25 Sep 2014 19:19:23 -0700 (PDT) X-ASG-Debug-ID: 1411697960-04cb6c50e52bf730001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id fdzNjgzl8Rgrh6wo for ; Thu, 25 Sep 2014 19:19:20 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AsoUAG7MJFR5LHimPGdsb2JhbABggw6BKoc4rngBAQEBAQEGnEoXAQYBAQEBODmEBAEFJy8zCBgxOQMHFBmIPcF6hhKOXgWGJqM3iwgegWsrL4JKAQEB Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail05.adl6.internode.on.net with ESMTP; 26 Sep 2014 11:49:16 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XXL7q-0000Rj-Pr for xfs@oss.sgi.com; Fri, 26 Sep 2014 12:19:14 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XXL7q-0006Ry-PF for xfs@oss.sgi.com; Fri, 26 Sep 2014 12:19:14 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 1/5] xfs: refactor xlog_recover_process_data() Date: Fri, 26 Sep 2014 12:19:08 +1000 X-ASG-Orig-Subj: [PATCH 1/5] xfs: refactor xlog_recover_process_data() Message-Id: <1411697952-24741-2-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1411697952-24741-1-git-send-email-david@fromorbit.com> References: <1411697952-24741-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1411697960 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9889 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner Clean up xlog_recover_process_data() structure in preparation for fixing the allocation and freeing context of the transaction being recovered. Signed-off-by: Dave Chinner --- fs/xfs/xfs_log_recover.c | 200 ++++++++++++++++++++++++++++++----------------- 1 file changed, 127 insertions(+), 73 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index c6427b3..b5e081b 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -3533,12 +3533,122 @@ out: } STATIC int -xlog_recover_unmount_trans( - struct xlog *log) +xlog_recovery_process_trans( + struct xlog *log, + struct xlog_recover *trans, + xfs_caddr_t dp, + unsigned int len, + unsigned int flags, + int pass) { - /* Do nothing now */ - xfs_warn(log->l_mp, "%s: Unmount LR", __func__); - return 0; + int error = -EIO; + + /* mask off ophdr transaction container flags */ + flags &= ~XLOG_END_TRANS; + if (flags & XLOG_WAS_CONT_TRANS) + flags &= ~XLOG_CONTINUE_TRANS; + + switch (flags) { + /* expected flag values */ + case 0: + case XLOG_CONTINUE_TRANS: + error = xlog_recover_add_to_trans(log, trans, dp, len); + break; + case XLOG_WAS_CONT_TRANS: + error = xlog_recover_add_to_cont_trans(log, trans, dp, len); + break; + case XLOG_COMMIT_TRANS: + error = xlog_recover_commit_trans(log, trans, pass); + break; + + /* unexpected flag values */ + case XLOG_UNMOUNT_TRANS: + xfs_warn(log->l_mp, "%s: Unmount LR", __func__); + error = 0; /* just skip trans */ + break; + case XLOG_START_TRANS: + xfs_warn(log->l_mp, "%s: bad transaction", __func__); + ASSERT(0); + break; + default: + xfs_warn(log->l_mp, "%s: bad flag 0x%x", __func__, flags); + ASSERT(0); + break; + } + return error; +} + +STATIC struct xlog_recover * +xlog_recover_ophdr_to_trans( + struct hlist_head rhash[], + struct xlog_rec_header *rhead, + struct xlog_op_header *ohead) +{ + struct xlog_recover *trans; + xlog_tid_t tid; + struct hlist_head *rhp; + + tid = be32_to_cpu(ohead->oh_tid); + rhp = &rhash[XLOG_RHASH(tid)]; + trans = xlog_recover_find_tid(rhp, tid); + if (trans) + return trans; + + /* + * If this is a new transaction, the ophdr only contains the + * start record. In that case, the only processing we need to do + * on this opheader is allocate a new recovery container to hold + * the recovery ops that will follow. + */ + if (ohead->oh_flags & XLOG_START_TRANS) + xlog_recover_new_tid(rhp, tid, be64_to_cpu(rhead->h_lsn)); + return NULL; +} + +STATIC int +xlog_recover_process_ophdr( + struct xlog *log, + struct hlist_head rhash[], + struct xlog_rec_header *rhead, + struct xlog_op_header *ohead, + xfs_caddr_t dp, + xfs_caddr_t lp, + int pass) +{ + struct xlog_recover *trans; + int error; + unsigned int len; + + /* Do we understand who wrote this op? */ + if (ohead->oh_clientid != XFS_TRANSACTION && + ohead->oh_clientid != XFS_LOG) { + xfs_warn(log->l_mp, "%s: bad clientid 0x%x", + __func__, ohead->oh_clientid); + ASSERT(0); + return -EIO; + } + + /* + * Check the ophdr contains all the data it is supposed to contain. + */ + len = be32_to_cpu(ohead->oh_len); + if (dp + len > lp) { + xfs_warn(log->l_mp, "%s: bad length 0x%x", __func__, len); + WARN_ON(1); + return -EIO; + } + + trans = xlog_recover_ophdr_to_trans(rhash, rhead, ohead); + if (!trans) { + /* nothing to do, so skip over this ophdr */ + return 0; + } + + error = xlog_recovery_process_trans(log, trans, dp, len, + ohead->oh_flags, pass); + if (error) + xlog_recover_free_trans(trans); + return error; } /* @@ -3558,14 +3668,10 @@ xlog_recover_process_data( xfs_caddr_t dp, int pass) { + struct xlog_op_header *ohead; xfs_caddr_t lp; int num_logops; - xlog_op_header_t *ohead; - xlog_recover_t *trans; - xlog_tid_t tid; int error; - unsigned long hash; - uint flags; lp = dp + be32_to_cpu(rhead->h_len); num_logops = be32_to_cpu(rhead->h_num_logops); @@ -3575,69 +3681,17 @@ xlog_recover_process_data( return -EIO; while ((dp < lp) && num_logops) { - ASSERT(dp + sizeof(xlog_op_header_t) <= lp); - ohead = (xlog_op_header_t *)dp; - dp += sizeof(xlog_op_header_t); - if (ohead->oh_clientid != XFS_TRANSACTION && - ohead->oh_clientid != XFS_LOG) { - xfs_warn(log->l_mp, "%s: bad clientid 0x%x", - __func__, ohead->oh_clientid); - ASSERT(0); - return -EIO; - } - tid = be32_to_cpu(ohead->oh_tid); - hash = XLOG_RHASH(tid); - trans = xlog_recover_find_tid(&rhash[hash], tid); - if (trans == NULL) { /* not found; add new tid */ - if (ohead->oh_flags & XLOG_START_TRANS) - xlog_recover_new_tid(&rhash[hash], tid, - be64_to_cpu(rhead->h_lsn)); - } else { - if (dp + be32_to_cpu(ohead->oh_len) > lp) { - xfs_warn(log->l_mp, "%s: bad length 0x%x", - __func__, be32_to_cpu(ohead->oh_len)); - WARN_ON(1); - return -EIO; - } - flags = ohead->oh_flags & ~XLOG_END_TRANS; - if (flags & XLOG_WAS_CONT_TRANS) - flags &= ~XLOG_CONTINUE_TRANS; - switch (flags) { - case XLOG_COMMIT_TRANS: - error = xlog_recover_commit_trans(log, - trans, pass); - break; - case XLOG_UNMOUNT_TRANS: - error = xlog_recover_unmount_trans(log); - break; - case XLOG_WAS_CONT_TRANS: - error = xlog_recover_add_to_cont_trans(log, - trans, dp, - be32_to_cpu(ohead->oh_len)); - break; - case XLOG_START_TRANS: - xfs_warn(log->l_mp, "%s: bad transaction", - __func__); - ASSERT(0); - error = -EIO; - break; - case 0: - case XLOG_CONTINUE_TRANS: - error = xlog_recover_add_to_trans(log, trans, - dp, be32_to_cpu(ohead->oh_len)); - break; - default: - xfs_warn(log->l_mp, "%s: bad flag 0x%x", - __func__, flags); - ASSERT(0); - error = -EIO; - break; - } - if (error) { - xlog_recover_free_trans(trans); - return error; - } - } + + ohead = (struct xlog_op_header *)dp; + dp += sizeof(*ohead); + ASSERT(dp <= lp); + + /* errors will abort recovery */ + error = xlog_recover_process_ophdr(log, rhash, rhead, ohead, + dp, lp, pass); + if (error) + return error; + dp += be32_to_cpu(ohead->oh_len); num_logops--; } -- 2.0.0 From pkuelelixi@gmail.com Thu Sep 25 21:45:32 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 805717FEF for ; Thu, 25 Sep 2014 21:45:32 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6CEA58F8033 for ; Thu, 25 Sep 2014 19:45:32 -0700 (PDT) X-ASG-Debug-ID: 1411699530-04cbb073033ae2c0001-NocioJ Received: from mail-ie0-f169.google.com (mail-ie0-f169.google.com [209.85.223.169]) by cuda.sgi.com with ESMTP id 60IfMoEcYWftNhZ5 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Thu, 25 Sep 2014 19:45:30 -0700 (PDT) X-Barracuda-Envelope-From: pkuelelixi@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.223.169 X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.169] Received: by mail-ie0-f169.google.com with SMTP id rp18so13040113iec.0 for ; Thu, 25 Sep 2014 19:45:30 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.169] X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.169] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=alsIVr4YV7pnvQ15Bp2BBE5tShpsLmfAq8zS9CfJqOU=; b=hMhHunNRtjelFHaVM/rugVZedqY7dI4zimNgOwcUctCP6XQtGV/8BgfpanlKPXJq6F NNTYvsa6zueWjYMJwIEDM0TBQGFpIqA7PTVbsR9zSMJetgDbx5HdjsiiJf+K7yAIg0so TX5cNxE3yUYg12zvJnp+rPw5svXfHa7xC1HsrTlZJ13bcIawl3OFMY6a1tm2oX2kkRtF HeZT3jQfS/+ohhCQ/zk3xlKTJwyu1K20PHJlqqw+RkO0RZWcFE6oc5CJ6Syy0tJmbXKt AAYMzOrnFvnvGYG2LmUtN8i2rMM2DSxVc6rH5o5L9JV9g+QZejP9yHwLaArgIjtAuwXs VzXw== MIME-Version: 1.0 X-Received: by 10.42.207.131 with SMTP id fy3mr21816878icb.67.1411699530525; Thu, 25 Sep 2014 19:45:30 -0700 (PDT) Received: by 10.42.209.210 with HTTP; Thu, 25 Sep 2014 19:45:30 -0700 (PDT) In-Reply-To: <20140926001049.GK4945@dastard> References: <1411567470-31799-1-git-send-email-lixi@ddn.com> <1411567470-31799-5-git-send-email-lixi@ddn.com> <20140924162507.GC27000@quack.suse.cz> <20140924162634.GA16886@infradead.org> <20140924170105.GE27000@quack.suse.cz> <20140925075912.GG4758@dastard> <20140926001049.GK4945@dastard> Date: Fri, 26 Sep 2014 10:45:30 +0800 Message-ID: Subject: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project From: Li Xi X-ASG-Orig-Subj: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project To: Dave Chinner Cc: Jan Kara , Christoph Hellwig , Andreas Dilger , "linux-api@vger.kernel.org" , xfs@oss.sgi.com, Dmitry Monakhov , "viro@zeniv.linux.org.uk" , "linux-fsdevel@vger.kernel.org" , "Theodore Ts'o" , Ext4 Developers List Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail-ie0-f169.google.com[209.85.223.169] X-Barracuda-Start-Time: 1411699530 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9889 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Fri, Sep 26, 2014 at 8:10 AM, Dave Chinner wrote: > On Thu, Sep 25, 2014 at 07:34:38PM +0800, lixi wrote: >> Hi Dave, >> >> I was mostly working on the semantics of inherit flag on these patches. = And >> I didn=E2=80=99t realized that the interface differences would bother yo= u so much. Sorry >> for that. > > It's not the differences that bother me - it's the fact that I was > repeatedly ignored until someone else raised the same issue.... Sorry about that. Since we are implementing a feature which exsits in XFS for years, your opions are surely very important. They are not ignored. But I think more discussion is necessary before an common agreement is reached. And I am willing to change the interfaces to whatever all people agree on. > >> I agree that we should choose a good interface. It would be good that it= is >> general so that it works well for all file systems. I agree that adding = an >> ext4 specific ioctl() is far from the best choice. I am willing to chang= e it to >> any general interface. A general ioctl() sounds good to me. Extend setat= tr() >> and getattr() for project ID sounds even better, since project ID looks = like >> UID/GID. > > Ah, no, project ID is not a uid/gid. It's a completely independent > construct. > > [ Which brings me to, once again, the issue of being ignored during > reviews: project IDs should not be mapped by user namespaces, nor be > accessible from anything other than the init namespace. > > In XFS we've turned off access to project IDs within namespace > containers because they are used for container space management > (i.e. by the init namespace) to manage the amount of filesystem > space a container or set of containers can use. We do not want > project IDs to be manipulated from within such containers, and > therefore have to prevent access to them from within user > namespaces. ] OK. That is another semantics which needs further discussion whether we need to implement for Ext4. Container space management is one of the project quota use case. I am not sure how widely used it is, but I like features with less limits. > >> And general xattr name is another choice. But it is might be a little >> bit confusing if we use xattr actually, since we are not saving project = ID as >> extended attribute on Ext4. Any choice is fine with me, as long as the >> implementation won't introduce nasty codes or inconsistent design. > > We can easily create another ioctl name if we have to. It just needs > sto be defined to the same value as the XFS ioctl names currently > are. We've done this before when making ioctls that originated in > XFS generic (e.g. with freeze/thaw ioctls).... OK. I am fine with general ioctl to set/get project ID. > >> However, the problem is, I do not quite understand why we should keep >> the interface exactly the same with XFS. It would be good if we can. But >> as far as I can see, it seems hard. XFS uses a lot interfaces which are >> not so standard and used by other file systems. For example, struct >> fsxattr is not used by other file systems at all except XFS. > > Moving a existing structure definitions to a different header file > is too hard? I don't think difficulty is a big problem. I'm wondering whether it is necessary. > >> I am not sure why we should introduce this into Ext4 if there are >> a lot of other better ways. I would be happy to change to XFS >> interfaces, if it is general. However, I don=E2=80=99t think it is >> general enough. > > How is it not general enough? Examples, please, not handwaving: > which bit of the quota interface can't ext4 use because it's XFS > specific? Well, I am not so familar with XFS, so I might be all wrong about XFS. But honestly, a lot of quota interfaces of XFS seems not so standard. For example, all the Q_X* flags used in do_quotactl(). Maybe there are really good reasons why they are there. I don't know. And XFS does not use general codes under fs/quota. That is a big difference with Ext4. > > We already have a perfectly functional interface and a large body of > code that implements and tests it. You're saying "oh, it's too much > work for me to implement an existing interface" and ignoring the > fact that not implementing the existing interface forces a huge > amount of downstream work. e.g. > > - we need completely new test infrastructure to replicate > existing tests. > - we need new tests to ensure the different APIs and > utilities provide the same functionality, and that the > work identically. > - administrators are going to have to learn how ext4 is > different to what they already know and understand. > - administrators that has tools written to manage project > quotas is going to have to rewrite them to support ext4. > > It's an entirely selfish argument that ignores what already existing > out in userspace. i.e. you're saying that existing downstream users of > project quotas simple don't matter to you... > >> I know xfstest is using the existing project quota interfaces of XFS. An= d >> maybe there are some applications which are using them too. But >> keeping the interfaces exactly the same with XFS would cost so much >> effort that I=E2=80=99d like to get enough reasons before start working = on it. Is it >> really necessary? I am not so sure. > > You have to have a stronger argument than that to justify creating a > new incompatible user interface. The XFS interfaces have been > available for more than 10 years and support all the functionality > ext4 requires. If it was any other userspace interface (e.g. > syscalls) or any filesystem other than ext4 there would be people > from all over telling you "use the existing interfaces!" and you'd > need very strong reasons for creating a new one. > > i.e. you need to demonstrate that the existing interfaces are > inadequate for the intended purpose of the new functionality. That's > clearly not the case here so why should we allow you to create an > incompatible userspace API rather than use the existing, fully > functional API? > >> It is so easy to change user space applications comparing to >> changing a weird interfaces. > > The existing generic quota tools (i.e quotactl, repquota, etc) > already implement the XFS quota API to be able to query XFS > filesystems. There's no "changing to wierd interfaces" necessary > for userspace; it's already all there. Hence any work you do to add > project quota awareness to those generic userspace tools will need to > add the support to the XFS queries anyway. > > IOWs, you're not making it any easier for yourself in userspace by > creating a new API for ext4 - it just doubles the amount of work you > have to in userspace to make existing tools project quota aware. I am afraid I have to make existing tools project quota aware. And actually I've done most of the work. I've updated e2fsprogs and quota-tools to support project quota. Unfortunately these updates are inevitable anyway. As Jan Kara said, we can't force system admins to change from quota-tool command to xfs quota tools. Thus, I add '-P $PROJECT' arguments to all the commands. And based on those tools, I made a script which is less than 1K lines for regression test. It is working pretty well. I don't see a good reason why it is necessary to change everything to XFS way. > >> For >> example, I think it won=E2=80=99t cost even more than a day to add xfste= st >> support for new Ext4 project quota. > > A day of whose time? I am always willing to help if you agree. :) > > Ever thought about how much time it will take reviewers to look at > your tests and iterate over them to get it all right? If you're > introducing new userspace infrastructure that xfstests will need to > depend on and test for, then it's a lot more than just writing new > tests. > > Indeed, I'm likely to want new project quota tests to be generic > (i.e. works and passes on any filesystem that supports project > quotas) with the introduction of ext4 project quota support. It's > the same functionality and so it should work the same just like user > and group quotas do across all filesystems. > >> And since project quota is far from >> a widely used feature, > > I don't think you realise quite how widespread it's use is on XFS. > >> I don=E2=80=99t think there is much compatibility problems >> for existing applications. And If the new project interface are general >> enough, there won=E2=80=99t be any compatibility problems for new applic= ations >> at all. > > Again, you are ignoring the compatibility problems with existing > applications that are project quota aware. For them you are > *creating new compatibility problems* by implementing a new > interface. i.e. Existing applications will not work on ext4, and > new applications written to work on ext4 won't work on XFS. > > That's the crux of the issue - we have existing applications using > the existing interface and so introducing a new interface introduces > compatibility problems. You can't just wave this problem away > because you don't think the existing interface matters. > > "It's easier for me to create a new interface" is not a valid reason > for creating a new interface.... Sorry about my ignorance about the existing usage of XFS project quota. I hope it is widely used. But does it really matters for XFS that what kind of Ext4 interfaces is going to use? Existing appplications would run happily on XFS any way using the exisitng XFS interfaces. And if you are concerning about the compatibility between Ext4 and XFS, I am afraid those applications have to be changed any way when been ported to Ext4. Since those applications are using XFS specific feature, i.e. project quota, it is likely they are using other kind of XFS speicific features which probably will never be implemented on Ext4. I don't think there is any easy way to port them from XFS to Ext4 any way. And I really don't think therea are many such kind of applications. So, since we are not implementing interfaces for XFS2 or XFS3, I don't think compatibility problem is so critical. Regards, - Li Xi From bounce@client.emailtech.co.in Fri Sep 26 02:29:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: **** X-Spam-Status: No, score=4.8 required=5.0 tests=DATE_IN_PAST_03_06, HTML_IMAGE_RATIO_02,HTML_MESSAGE,NORMAL_HTTP_TO_IP,RCVD_NUMERIC_HELO autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 792337FF1 for ; Fri, 26 Sep 2014 02:29:11 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 239EFAC001 for ; Fri, 26 Sep 2014 00:29:07 -0700 (PDT) X-ASG-Debug-ID: 1411716542-04bdf003a233e6b0001-NocioJ Received: from server.emailtech.co.in (server.emailtech.co.in [23.239.23.80]) by cuda.sgi.com with ESMTP id DTxTEZi2SQQw0oF9 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 00:29:02 -0700 (PDT) X-Barracuda-Envelope-From: bounce@client.emailtech.co.in X-Barracuda-Apparent-Source-IP: 23.239.23.80 Received: from localhost ([::1]:41295 helo=23.239.23.80) by li744-80 with esmtpa (Exim 4.82) (envelope-from ) id 1XXPxd-0007lB-Jf for xfs@oss.sgi.com; Fri, 26 Sep 2014 07:29:01 +0000 To: xfs@oss.sgi.com Subject: Paramount Group Of Companies Cordially Invites You To Golfforeste Carnival Of Colors Message-ID: <339ee24fecbb05c86663b5bf9805f19f@23.239.23.80> X-ASG-Orig-Subj: Paramount Group Of Companies Cordially Invites You To Golfforeste Carnival Of Colors Date: Fri, 26 Sep 2014 03:14:28 +0000 From: "Smriti Ahuja" Reply-To: noreply@client.emailtech.co.in MIME-Version: 1.0 X-Mailer-LID: 4 List-Unsubscribe: X-Mailer-SID: 4 X-Mailer-Sent-By: 2 Content-Type: multipart/alternative; charset="UTF-8"; boundary="b1_4015bff0d2ead51b69303c42c83d7725" Content-Transfer-Encoding: 8bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - server.emailtech.co.in X-AntiAbuse: Original Domain - oss.sgi.com X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - client.emailtech.co.in X-Get-Message-Sender-Via: server.emailtech.co.in: authenticated_id: clientem/from_h X-Barracuda-Connect: server.emailtech.co.in[23.239.23.80] X-Barracuda-Start-Time: 1411716542 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 1.64 X-Barracuda-Spam-Status: No, SCORE=1.64 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DATE_IN_PAST_03_06, DATE_IN_PAST_03_06_2, HTML_IMAGE_RATIO_02, HTML_MESSAGE, NORMAL_HTTP_TO_IP X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9897 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 DATE_IN_PAST_03_06 Date: is 3 to 6 hours before Received: date 0.00 NORMAL_HTTP_TO_IP URI: Uses a dotted-decimal IP address in URL 0.55 HTML_IMAGE_RATIO_02 BODY: HTML has a low ratio of text to image area 0.00 HTML_MESSAGE BODY: HTML included in message 1.08 DATE_IN_PAST_03_06_2 DATE_IN_PAST_03_06_2 --b1_4015bff0d2ead51b69303c42c83d7725 Content-Type: text/plain; format=flowed; charset="UTF-8" Content-Transfer-Encoding: 8bit ********************** DISCLAIMER********************** This e-mail may contain Confidential and/or Legally Privileged Information and is meant for the intended recipient(s) only. 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--b1_4015bff0d2ead51b69303c42c83d7725-- From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 04:44:41 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9A7057FF1 for ; Fri, 26 Sep 2014 04:44:41 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 7978530408D for ; Fri, 26 Sep 2014 02:44:38 -0700 (PDT) X-ASG-Debug-ID: 1411724676-04cb6c50e72e7310001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id J6sBCFQpu9HKpARC (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 02:44:37 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXS4q-0003uu-BM; Fri, 26 Sep 2014 09:44:36 +0000 Date: Fri, 26 Sep 2014 02:44:36 -0700 From: Christoph Hellwig To: Dave Chinner Cc: Christoph Hellwig , xfs@oss.sgi.com Subject: Re: [PATCH 1/3] xfs: consider freeze levels in xfs_fs_writable() Message-ID: <20140926094436.GA10692@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 1/3] xfs: consider freeze levels in xfs_fs_writable() References: <1411647632-28240-1-git-send-email-david@fromorbit.com> <1411647632-28240-2-git-send-email-david@fromorbit.com> <20140925161756.GA25798@infradead.org> <20140925210330.GG4945@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140925210330.GG4945@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411724677 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9900 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Fri, Sep 26, 2014 at 07:03:30AM +1000, Dave Chinner wrote: > I can mention it, but it's so trivial I didn't think it was worth > it. It does change behavior, so it should document why that was changed. > The changelog says "Hence allow the caller to pass in the freeze > level it is allowed to write" which is exactly what this code is > doing. The changelog says the you can pass the argument now. It doesn't say that it did change a caller to pass a different argument, and more importanly why. From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 04:45:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id AE0D97FF3 for ; Fri, 26 Sep 2014 04:45:52 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 9B9C930405F for ; Fri, 26 Sep 2014 02:45:52 -0700 (PDT) X-ASG-Debug-ID: 1411724751-04cbb073023cd960001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id D2t6AM7txRkXDhNr (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 02:45:51 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXS62-0006A1-Tl; Fri, 26 Sep 2014 09:45:50 +0000 Date: Fri, 26 Sep 2014 02:45:50 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/3] xfs: remove bitfield based superblock updates Message-ID: <20140926094550.GB10692@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 2/3] xfs: remove bitfield based superblock updates References: <1411647632-28240-1-git-send-email-david@fromorbit.com> <1411647632-28240-3-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411647632-28240-3-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1411724751 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9900 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- This breaks generic/230 for me on an x86-64 VM: --- tests/generic/230.out 2013-11-11 10:38:59.000000000 +0000 +++ /root/xfstests/results//generic/230.out.bad 2014-09-26 09:47:37.000000000 +0000 @@ -23,11 +23,8 @@ Write 900k... Rewrite 1001k... Write 1000k... -pwrite64: Disk quota exceeded Write 4096... -pwrite64: Disk quota exceeded Touch 3+4 Touch 5+6 touch: cannot touch 'SCRATCH_MNT/file6': Disk quota exceeded Touch 5 -touch: cannot touch 'SCRATCH_MNT/file5': Disk quota exceeded From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 04:47:53 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 41DC77FF9 for ; Fri, 26 Sep 2014 04:47:53 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 215F08F8037 for ; Fri, 26 Sep 2014 02:47:50 -0700 (PDT) X-ASG-Debug-ID: 1411724868-04cb6c50e42e7470001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id ElE4bcQ9OaTiGFHT (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 02:47:48 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXS7w-00089o-Ft; Fri, 26 Sep 2014 09:47:48 +0000 Date: Fri, 26 Sep 2014 02:47:48 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/4] xfs: fix use of agi_newino in finobt lookup Message-ID: <20140926094748.GC10692@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 1/4] xfs: fix use of agi_newino in finobt lookup References: <1411601863-19594-1-git-send-email-david@fromorbit.com> <1411601863-19594-2-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411601863-19594-2-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411724868 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9901 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Thu, Sep 25, 2014 at 09:37:40AM +1000, Dave Chinner wrote: > Sparse warns that we are passing the big-endian valueo f agi_newino > to the initial btree lookup function when trying to find a new > inode. This is wrong - we need to pass the host order value, not the > disk order value. This will adversely affect the next inode > allocated, but given that the free inode btree is usually much > smaller than the allocated inode btree it is much less likely to be > a performance issue if we start the search in the wrong place. Looks good. I'm rather surprised this wasn't noticed earlier. Reviewed-by: Christoph Hellwig From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 04:48:02 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 788A28002 for ; Fri, 26 Sep 2014 04:48:02 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 1035CAC003 for ; Fri, 26 Sep 2014 02:48:01 -0700 (PDT) X-ASG-Debug-ID: 1411724881-04bdf003a134b2f0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id cKWcRb0V8MGHCJDt (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 02:48:01 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXS89-0008NA-9O; Fri, 26 Sep 2014 09:48:01 +0000 Date: Fri, 26 Sep 2014 02:48:01 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/4] xfs: xfs_qm_dquot_isolate needs locking annotations for sparse Message-ID: <20140926094801.GD10692@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 2/4] xfs: xfs_qm_dquot_isolate needs locking annotations for sparse References: <1411601863-19594-1-git-send-email-david@fromorbit.com> <1411601863-19594-3-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411601863-19594-3-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411724881 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9900 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Thu, Sep 25, 2014 at 09:37:41AM +1000, Dave Chinner wrote: > From: Dave Chinner > > To remove noise from the build. > > Signed-off-by: Dave Chinner Looks good, Reviewed-by: Christoph Hellwig From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 04:48:24 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 329E77FFB for ; Fri, 26 Sep 2014 04:48:24 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id C3268AC01B for ; Fri, 26 Sep 2014 02:48:23 -0700 (PDT) X-ASG-Debug-ID: 1411724901-04cb6c50e42e74d0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id YMY02j5Sr2CxcUJY (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 02:48:21 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXS8T-0000ET-Ec; Fri, 26 Sep 2014 09:48:21 +0000 Date: Fri, 26 Sep 2014 02:48:21 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 3/4] xfs: xfs_kset should be static Message-ID: <20140926094821.GE10692@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 3/4] xfs: xfs_kset should be static References: <1411601863-19594-1-git-send-email-david@fromorbit.com> <1411601863-19594-4-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411601863-19594-4-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411724901 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9901 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Thu, Sep 25, 2014 at 09:37:42AM +1000, Dave Chinner wrote: > From: Dave Chinner > > As it is accessed through the struct xfs_mount and can be set up > entirely from fs/xfs/xfs_super.c > > Signed-off-by: Dave Chinner Looks good, Reviewed-by: Christoph Hellwig From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 04:59:29 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 5CEB78000 for ; Fri, 26 Sep 2014 04:59:29 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 3404930405F for ; Fri, 26 Sep 2014 02:59:29 -0700 (PDT) X-ASG-Debug-ID: 1411725568-04cbb073013cdfa0001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id 0i9Z4WbDz14puRFN (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 02:59:28 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXSJD-0007xd-Mn; Fri, 26 Sep 2014 09:59:27 +0000 Date: Fri, 26 Sep 2014 02:59:27 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 4/4] xfs: annotate user variables passed as void Message-ID: <20140926095927.GF10692@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 4/4] xfs: annotate user variables passed as void References: <1411601863-19594-1-git-send-email-david@fromorbit.com> <1411601863-19594-5-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411601863-19594-5-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1411725568 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9901 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Sep 25, 2014 at 09:37:43AM +1000, Dave Chinner wrote: > From: Dave Chinner > > Some argument callbacks can contain user buffers, and sparse warns > about passing them as void pointers. Cast appropriately to remove > the sparse warnings. Looks okay. I don't really like the games we're playing there, but this isn't the time to fix them up.. Reviewed-by: Christoph Hellwig From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 05:00:28 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 6DFF28000 for ; Fri, 26 Sep 2014 05:00:28 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 4AB388F8035 for ; Fri, 26 Sep 2014 03:00:28 -0700 (PDT) X-ASG-Debug-ID: 1411725627-04bdf0039f34b8d0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id 4EU5sDQ7g6JCqDve (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 03:00:27 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXSKB-0001F9-BY; Fri, 26 Sep 2014 10:00:27 +0000 Date: Fri, 26 Sep 2014 03:00:27 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/3] xfs: remove bitfield based superblock updates Message-ID: <20140926100027.GG10692@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 2/3] xfs: remove bitfield based superblock updates References: <1411647632-28240-1-git-send-email-david@fromorbit.com> <1411647632-28240-3-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411647632-28240-3-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411725627 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9901 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS > + to->sb_uquotino = cpu_to_be64(from->sb_uquotino); > + if (xfs_sb_version_has_pquotino(from)) { > + to->sb_qflags = be16_to_cpu(from->sb_qflags); > + to->sb_gquotino = cpu_to_be64(from->sb_gquotino); > + to->sb_pquotino = cpu_to_be64(from->sb_pquotino); > + return; > + } sparse complains that the be16_to_cpu should be a cpu_to_be16 for sb_qflags.. From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 05:11:36 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id A49548000 for ; Fri, 26 Sep 2014 05:11:36 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 933DA304051 for ; Fri, 26 Sep 2014 03:11:33 -0700 (PDT) X-ASG-Debug-ID: 1411726291-04cbb073023ce580001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id XrfKhdn1qu0Uokfx (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 03:11:32 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXSUt-0007Wo-GF; Fri, 26 Sep 2014 10:11:31 +0000 Date: Fri, 26 Sep 2014 03:11:31 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 03/11] xfs: synchronous buffer IO needs a reference Message-ID: <20140926101131.GA22194@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 03/11] xfs: synchronous buffer IO needs a reference References: <1411648461-29003-1-git-send-email-david@fromorbit.com> <1411648461-29003-4-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411648461-29003-4-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1411726292 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9901 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Looks good, Reviewed-by: Christoph Hellwig From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 05:14:42 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 5209A8000 for ; Fri, 26 Sep 2014 05:14:42 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id D2E79AC008 for ; Fri, 26 Sep 2014 03:14:38 -0700 (PDT) X-ASG-Debug-ID: 1411726477-04cb6c50e62e7e00001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id rOfxprehJM5VDeb7 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 03:14:37 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXSXt-0000lz-9W; Fri, 26 Sep 2014 10:14:37 +0000 Date: Fri, 26 Sep 2014 03:14:37 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 04/11] xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality Message-ID: <20140926101436.GB22194@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 04/11] xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality References: <1411648461-29003-1-git-send-email-david@fromorbit.com> <1411648461-29003-5-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411648461-29003-5-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411726477 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9901 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS Looks good, Reviewed-by: Christoph Hellwig From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 05:15:46 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3E0108001 for ; Fri, 26 Sep 2014 05:15:46 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 2AA5B304059 for ; Fri, 26 Sep 2014 03:15:46 -0700 (PDT) X-ASG-Debug-ID: 1411726544-04cbb073033ce760001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id Fu5u6D3SMbRdNdGV (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 03:15:45 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXSYy-0002dk-Pe; Fri, 26 Sep 2014 10:15:44 +0000 Date: Fri, 26 Sep 2014 03:15:44 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 05/11] xfs: rework xfs_buf_bio_endio error handling Message-ID: <20140926101544.GC22194@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 05/11] xfs: rework xfs_buf_bio_endio error handling References: <1411648461-29003-1-git-send-email-david@fromorbit.com> <1411648461-29003-6-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411648461-29003-6-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1411726545 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9901 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- I still don't understand why we even need b_error on the submission side, we should be able to just pass the error on the stack. But we can sort this out later, and the change looks ok, so: Reviewed-by: Christoph Hellwig From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 05:16:49 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E41D97F89 for ; Fri, 26 Sep 2014 05:16:49 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id D231B8F8037 for ; Fri, 26 Sep 2014 03:16:46 -0700 (PDT) X-ASG-Debug-ID: 1411726605-04cb6c50e42e7ee0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id HrvgiILcCjVmJFWY (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 03:16:46 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXSZx-0002u8-ER; Fri, 26 Sep 2014 10:16:45 +0000 Date: Fri, 26 Sep 2014 03:16:45 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 07/11] xfs: xfs_bioerror can die. Message-ID: <20140926101645.GD22194@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 07/11] xfs: xfs_bioerror can die. References: <1411648461-29003-1-git-send-email-david@fromorbit.com> <1411648461-29003-8-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411648461-29003-8-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411726605 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9901 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS Looks good, Reviewed-by: Christoph Hellwig From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 05:18:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3C0597FC4 for ; Fri, 26 Sep 2014 05:18:11 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 16BD5304062 for ; Fri, 26 Sep 2014 03:18:11 -0700 (PDT) X-ASG-Debug-ID: 1411726689-04bdf003a234bfe0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id W1QvxMeB92sbuNsc (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 03:18:10 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXSbJ-0003RP-U5; Fri, 26 Sep 2014 10:18:09 +0000 Date: Fri, 26 Sep 2014 03:18:09 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 08/11] xfs: kill xfs_bioerror_relse Message-ID: <20140926101809.GE22194@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 08/11] xfs: kill xfs_bioerror_relse References: <1411648461-29003-1-git-send-email-david@fromorbit.com> <1411648461-29003-9-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411648461-29003-9-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411726690 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9901 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS Looks good, Reviewed-by: Christoph Hellwig From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 05:21:50 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 693A28001 for ; Fri, 26 Sep 2014 05:21:50 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 4712D304053 for ; Fri, 26 Sep 2014 03:21:50 -0700 (PDT) X-ASG-Debug-ID: 1411726908-04cb6c50e42e8070001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id K4bSL9vDALgjImOx (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 03:21:49 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXSeq-0006DL-Jy; Fri, 26 Sep 2014 10:21:48 +0000 Date: Fri, 26 Sep 2014 03:21:48 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 10/11] xfs: check xfs_buf_read_uncached returns correctly Message-ID: <20140926102148.GF22194@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 10/11] xfs: check xfs_buf_read_uncached returns correctly References: <1411648461-29003-1-git-send-email-david@fromorbit.com> <1411648461-29003-11-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411648461-29003-11-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411726909 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9901 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Thu, Sep 25, 2014 at 10:34:20PM +1000, Dave Chinner wrote: > From: Dave Chinner > > xfs_buf_read_uncached() has two failure modes. If can either return > NULL or bp->b_error != 0 depending on the type of failure, and not > all callers check for both. Fix it up. This changelog still seems to be for your previous version and needs an update now tha xfs_buf_read_uncached always returns the error directly. > - return NULL; > + return ENOMEM; Should be -ENOMEM these days, shouldn't it? > release_buf: > - xfs_buf_relse(bp); > + if (bp) > + xfs_buf_relse(bp); Shouldn't bp always be valid at this point? From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 05:22:08 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_FRT_FOLLOW2 autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2A0878001 for ; Fri, 26 Sep 2014 05:22:08 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 07CE98F8039 for ; Fri, 26 Sep 2014 03:22:08 -0700 (PDT) X-ASG-Debug-ID: 1411726926-04cbb073013cea10001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id BrWRAXoZ28N2LP2i (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 03:22:07 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXSf8-0006I4-SJ; Fri, 26 Sep 2014 10:22:06 +0000 Date: Fri, 26 Sep 2014 03:22:06 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 11/11] xfs: simplify xfs_zero_remaining_bytes Message-ID: <20140926102206.GG22194@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 11/11] xfs: simplify xfs_zero_remaining_bytes References: <1411648461-29003-1-git-send-email-david@fromorbit.com> <1411648461-29003-12-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411648461-29003-12-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1411726927 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9902 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Sep 25, 2014 at 10:34:21PM +1000, Dave Chinner wrote: > From: Christoph Hellwig > > xfs_zero_remaining_bytes() open codes a log of buffer manupulations > to do a read forllowed by a write. It can simply be replaced by an > uncached read followed by a xfs_bwrite() call. > > [Christoph, can I get your sign-off for this?] Sure, Signed-off-by: Christoph Hellwig From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 05:37:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 6FE238011 for ; Fri, 26 Sep 2014 05:37:26 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 4D9088F8040 for ; Fri, 26 Sep 2014 03:37:26 -0700 (PDT) X-ASG-Debug-ID: 1411727844-04cbb073043cf020001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id CUEqX7e2qX48ZRn3 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 03:37:25 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXStw-0007r9-K4; Fri, 26 Sep 2014 10:37:24 +0000 Date: Fri, 26 Sep 2014 03:37:24 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 01/11] xfs: force the log before shutting down Message-ID: <20140926103724.GA24436@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 01/11] xfs: force the log before shutting down References: <1411648461-29003-1-git-send-email-david@fromorbit.com> <1411648461-29003-2-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411648461-29003-2-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1411727845 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9902 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Sep 25, 2014 at 10:34:11PM +1000, Dave Chinner wrote: > From: Dave Chinner > > When we have marked the filesystem for shutdown, we want to prevent > any further buffer IO from being submitted. However, we currently > force the log after marking the filesystem as shut down, hence > allowing IO to the log *after* we have marked both the filesystem > and the log as in an error state. > > Clean this up by forcing the log before we mark the filesytem with > an error. This replaces the pure CIL flush that we currently have > which works around this same issue (i.e the CIL can't be flushed > once the shutdown flags are set) and hence enables us to clean up > the logic substantially. > > Signed-off-by: Dave Chinner Looks good, Reviewed-by: Christoph Hellwig A couple nitpicks: > diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c > index b1131fe..a598955 100644 > --- a/fs/xfs/xfs_log.c > +++ b/fs/xfs/xfs_log.c > @@ -3924,13 +3924,14 @@ xfs_log_force_umount( The top of the function comment speaks about the delaylog case, given that this is the only option now it might be worth to clean that up. > retval = 0; This assignment can be removed now that the xlog_state_ioerror call below is unconditional. From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 06:42:43 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C3BE57FEE for ; Fri, 26 Sep 2014 06:42:43 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id A347B8F8035 for ; Fri, 26 Sep 2014 04:42:40 -0700 (PDT) X-ASG-Debug-ID: 1411731759-04cb6c50e62ea250001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id OIxeoqsaAkSJ1Q40 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 04:42:39 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXTv4-0007z7-UD; Fri, 26 Sep 2014 11:42:38 +0000 Date: Fri, 26 Sep 2014 04:42:38 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/5] xfs: refactor xlog_recover_process_data() Message-ID: <20140926114238.GA16576@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 1/5] xfs: refactor xlog_recover_process_data() References: <1411697952-24741-1-git-send-email-david@fromorbit.com> <1411697952-24741-2-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411697952-24741-2-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411731759 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9903 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Fri, Sep 26, 2014 at 12:19:08PM +1000, Dave Chinner wrote: > From: Dave Chinner > > Clean up xlog_recover_process_data() structure in preparation for > fixing the allocation and freeing context of the transaction being > recovered. > > Signed-off-by: Dave Chinner Looks good. The only behavior change I could spot was that we now validate the length of an ophdr even when starting a new transaction, which seems sensible. Nipick: maybe the lp argument to xlog_recover_process_ophdr should be called end to make it more obvious? Reviewed-by: Christoph Hellwig From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 07:01:09 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id CAADA29E02 for ; Fri, 26 Sep 2014 07:01:09 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 58EC7AC003 for ; Fri, 26 Sep 2014 05:01:06 -0700 (PDT) X-ASG-Debug-ID: 1411732864-04cb6c50e72ea9d0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id 7pL9FBMYUrcBTapf (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 05:01:05 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXUCu-0003kv-E2; Fri, 26 Sep 2014 12:01:04 +0000 Date: Fri, 26 Sep 2014 05:01:04 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/5] xfs: recovery of XLOG_UNMOUNT_TRANS leaks memory Message-ID: <20140926120104.GA10574@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 2/5] xfs: recovery of XLOG_UNMOUNT_TRANS leaks memory References: <1411697952-24741-1-git-send-email-david@fromorbit.com> <1411697952-24741-3-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411697952-24741-3-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411732864 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9904 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Fri, Sep 26, 2014 at 12:19:09PM +1000, Dave Chinner wrote: > From: Dave Chinner > > The XLOG_UNMOUNT_TRANS case skips the transaction, despite the fact > an unmount record is always in a standalone transaction. Hence > whenever we come across one of these we need to free the transaction > structure associated with it as there is no commit record that > follows it. > > Signed-off-by: Dave Chinner Looks good, Reviewed-by: Christoph Hellwig > @@ -3600,8 +3605,10 @@ xlog_recover_ophdr_to_trans( > * on this opheader is allocate a new recovery container to hold > * the recovery ops that will follow. > */ > - if (ohead->oh_flags & XLOG_START_TRANS) > + if (ohead->oh_flags & XLOG_START_TRANS) { > + ASSERT(be32_to_cpu(ohead->oh_len) == 0); > xlog_recover_new_tid(rhp, tid, be64_to_cpu(rhead->h_lsn)); > + } > return NULL; .. but I suspect this hunk fits better into the previous patch. Also shouldn't we handle any sort of on disk corruption more gracefully? From talonx@gmail.com Fri Sep 26 07:02:44 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE, T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 4ADF77FF6 for ; Fri, 26 Sep 2014 07:02:44 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id CC36FAC004 for ; Fri, 26 Sep 2014 05:02:43 -0700 (PDT) X-ASG-Debug-ID: 1411732962-04cbb073033d1d60001-NocioJ Received: from mail-ig0-f177.google.com (mail-ig0-f177.google.com [209.85.213.177]) by cuda.sgi.com with ESMTP id L5qOgypTuwvFJdII (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Fri, 26 Sep 2014 05:02:42 -0700 (PDT) X-Barracuda-Envelope-From: talonx@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.213.177 X-Barracuda-IPDD: Level1 [gmail.com/209.85.213.177] Received: by mail-ig0-f177.google.com with SMTP id h3so10124316igd.4 for ; Fri, 26 Sep 2014 05:02:42 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.213.177] X-Barracuda-IPDD: Level1 [gmail.com/209.85.213.177] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; bh=skFCW1dblq8q3Pvj7Bh8KGEBfseQ0Tyt0QPxhf/qLBk=; b=WRsS0eVln4IRaPZ6zUdjbKp181Z9jAHPkYnpzQr4dpDs/dXR/eUjr80b2GCuk67+fM cu1Mt3kekegID4CntrB6nMpvTjkAOTeJyR8lZJAyOKn3mtXMFr661cAIL9QyHPsZxT8X UjdNtQFUxvewr4w/P5Ya2UMhVTF5oByEcwaujTY0EQGVJSl+srNYy/V9i2+tBm2tfs46 2YyP3n+2CA5IC2LKgZvqMHFwcZ+OBwYPNEii5rlj5Ihnnknf0LOQczjROFo+8c75//tC qk0RrWWNqKtQ6GZxhdUsnIfP0xEBqoP4eXn7J+Dc37uFAjx1XmrLNPJvRvlkKY71PYjD 07RQ== X-Received: by 10.50.72.73 with SMTP id b9mr5314945igv.0.1411732962059; Fri, 26 Sep 2014 05:02:42 -0700 (PDT) MIME-Version: 1.0 Received: by 10.64.0.37 with HTTP; Fri, 26 Sep 2014 05:02:01 -0700 (PDT) In-Reply-To: <20140925071852.GE4758@dastard> References: <20140716124757.GC36312@bfoster.bfoster> <20140925071852.GE4758@dastard> From: Hrishikesh Barua Date: Fri, 26 Sep 2014 17:32:01 +0530 Message-ID: Subject: Re: Occassional problems with unfreeze To: Dave Chinner X-ASG-Orig-Subj: Re: Occassional problems with unfreeze Cc: Brian Foster , xfs@oss.sgi.com Content-Type: multipart/alternative; boundary=047d7bdc1178b8af110503f6b1b3 X-Barracuda-Connect: mail-ig0-f177.google.com[209.85.213.177] X-Barracuda-Start-Time: 1411732962 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9904 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message --047d7bdc1178b8af110503f6b1b3 Content-Type: text/plain; charset=UTF-8 > Indeed, you are running an old kern (3.2.0-54) which means it won't > have this fix: > > 3948659 xfs: Account log unmount transaction correctly > > And that's likely to be the source of all your freeze/unfreeze > problems because it will eventually hang the log when it's leaked > all it's space in the ether.... > We did get a few pointers earlier that 3948659 might be the cause of the freeze/unfreeze problems but now that you have confirmed it we'll upgrade the kernel. Thanks. - Hrish --047d7bdc1178b8af110503f6b1b3 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

=
Indeed, you are running an old kern (3.2.0-54) which means it won't
have this fix:

3948659 xfs: Account log unmount transaction correctly

And that's likely to be the source of all your freeze/unfreeze
problems because it will eventually hang the log when it's leaked
all it's space in the ether....

We did get a f= ew pointers earlier that 3948659 might be the cause of the freeze/unfreeze = problems but now that you have confirmed it we'll upgrade the kernel. T= hanks.

- Hrish
--047d7bdc1178b8af110503f6b1b3-- From tytso@thunk.org Fri Sep 26 07:03:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 1F0037FF9 for ; Fri, 26 Sep 2014 07:03:52 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id F2CA4304053 for ; Fri, 26 Sep 2014 05:03:48 -0700 (PDT) X-ASG-Debug-ID: 1411733026-04cb6c50e42eaaf0001-NocioJ Received: from imap.thunk.org (imap.thunk.org [74.207.234.97]) by cuda.sgi.com with ESMTP id iPIY87Wcw8F2KFfZ (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO) for ; Fri, 26 Sep 2014 05:03:47 -0700 (PDT) X-Barracuda-Envelope-From: tytso@thunk.org X-Barracuda-Apparent-Source-IP: 74.207.234.97 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=thunk.org; s=ef5046eb; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date; bh=d6UODWVTTwdo1B9PKkz9+eHdAWTjZvUzEllh6/HA3XA=; b=auNG7dqfwVZtTbNtSs/zuGgR4MVaOaO/vGXhpTxZTRlkYbWB7zzUu6Xc49ON8V+Tc6WW5M+R8ME88l8UnOmkqC/e6KYAGYqEuWy9h9ZdmPLzLVGj6eJ2N1jfatv4VIcDMONv7XAZ8hxDhVMIJMCuR60wQ4xmdQ8H7dRlFL/ZNH0=; Received: from root (helo=closure.thunk.org) by imap.thunk.org with local-esmtp (Exim 4.80) (envelope-from ) id 1XXUDJ-0001dA-IX; Fri, 26 Sep 2014 12:01:29 +0000 Received: by closure.thunk.org (Postfix, from userid 15806) id B153A58028B; Fri, 26 Sep 2014 08:01:28 -0400 (EDT) Date: Fri, 26 Sep 2014 08:01:28 -0400 From: Theodore Ts'o To: Dave Chinner Cc: Jan Kara , Christoph Hellwig , adilger@dilger.ca, linux-api@vger.kernel.org, xfs@oss.sgi.com, dmonakhov@openvz.org, viro@zeniv.linux.org.uk, Li Xi , linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org Subject: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project Message-ID: <20140926120128.GA21376@thunk.org> X-ASG-Orig-Subj: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project References: <1411567470-31799-1-git-send-email-lixi@ddn.com> <1411567470-31799-5-git-send-email-lixi@ddn.com> <20140924162507.GC27000@quack.suse.cz> <20140924162634.GA16886@infradead.org> <20140924170105.GE27000@quack.suse.cz> <20140925075912.GG4758@dastard> <20140925135213.GB15352@quack.suse.cz> <20140925224225.GJ4945@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140925224225.GJ4945@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: tytso@thunk.org X-SA-Exim-Scanned: No (on imap.thunk.org); SAEximRunCond expanded to false X-Barracuda-Connect: imap.thunk.org[74.207.234.97] X-Barracuda-Start-Time: 1411733027 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9904 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Fri, Sep 26, 2014 at 08:42:25AM +1000, Dave Chinner wrote: > Look, I have no problems with extending the existing quota > interfaces to support project quotas, but that should be a > *secondary* improvement as userspace tools are updated. The > primary goal needs to be "works identically to XFS" and so it needs > to implement the interfaces that are currently used for management > so that we can actually test that it does work identically. I think we're getting a bit too hung up on which is the "primary" and which is the "secondary" interfaces. The reality is that we should make both interfaces work. An example of this is how we handle the xfs-specific ioctls that are also exposed via the fallocate(2) system call. It's not particularly important to me which is the "primary" interface just because it's been around for 10 years. Which should implement *both* so that users are used to using xfs_io(8) or fallocate(1) can do what they want. Similarly, if some users are more used to the quotatools interface (which has been around for quite a long time, BTW, if we're trying to count primacy by years of availability to Linux users), and some users that are used to using xfs_quota, both should work. Cheers, - Ted From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 07:06:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3F2577FFB for ; Fri, 26 Sep 2014 07:06:11 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 0DB65304059 for ; Fri, 26 Sep 2014 05:06:10 -0700 (PDT) X-ASG-Debug-ID: 1411733169-04bdf0039f34f2f0001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id ntZShAyZXtULi2Gt (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 05:06:09 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXUHc-0006ke-0w; Fri, 26 Sep 2014 12:05:56 +0000 Date: Fri, 26 Sep 2014 05:05:56 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 4/5] xfs: reorganise transaction recovery item code Message-ID: <20140926120556.GC10574@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 4/5] xfs: reorganise transaction recovery item code References: <1411697952-24741-1-git-send-email-david@fromorbit.com> <1411697952-24741-5-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411697952-24741-5-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1411733169 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9904 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Sep 26, 2014 at 12:19:11PM +1000, Dave Chinner wrote: > From: Dave Chinner > > The code for managing transactions anf the items for recovery is > spread across 3 different locations in the file. Move them all > together so that it is easy to read the code without needing to jump > long distances in the file. > > Signed-off-by: Dave Chinner Looks good, Reviewed-by: Christoph Hellwig From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 07:08:36 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 8F5938012 for ; Fri, 26 Sep 2014 07:08:36 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 26308AC004 for ; Fri, 26 Sep 2014 05:08:36 -0700 (PDT) X-ASG-Debug-ID: 1411733314-04cbb073023d1fc0001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id AT0tBNg39JAPY5jb (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 05:08:34 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXUKA-000852-4v; Fri, 26 Sep 2014 12:08:34 +0000 Date: Fri, 26 Sep 2014 05:08:34 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 5/5] xfs: refactor recovery transaction start handling Message-ID: <20140926120834.GD10574@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 5/5] xfs: refactor recovery transaction start handling References: <1411697952-24741-1-git-send-email-david@fromorbit.com> <1411697952-24741-6-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411697952-24741-6-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1411733314 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9904 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Sep 26, 2014 at 12:19:12PM +1000, Dave Chinner wrote: > From: Dave Chinner > > Rework the transaction lookup and allocation code in > xlog_recovery_process_ophdr() to remove fold two related call-once s/remove // > helper functions into a single helper. Then fold in all > XLOG_START_TRANS logic to that helper to clean up the remaining > logic in xlog_recovery_process_ophdr(). > > Signed-off-by: Dave Chinner Looks good, Reviewed-by: Christoph Hellwig From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 07:33:41 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 2AC497FAF for ; Fri, 26 Sep 2014 07:33:41 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 1634F304039 for ; Fri, 26 Sep 2014 05:33:41 -0700 (PDT) X-ASG-Debug-ID: 1411734819-04cbb073023d2cf0001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id CJpQOQ1vEBB8Gg4f (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 05:33:39 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXUiQ-000546-N4; Fri, 26 Sep 2014 12:33:38 +0000 Date: Fri, 26 Sep 2014 05:33:38 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 09/11] xfs: introduce xfs_buf_submit[_wait] Message-ID: <20140926123338.GA18558@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 09/11] xfs: introduce xfs_buf_submit[_wait] References: <1411648461-29003-1-git-send-email-david@fromorbit.com> <1411648461-29003-10-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411648461-29003-10-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1411734819 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9905 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Looks good, although I still think this would benefit from a helper like the one below (patch lightly tested). Reviewed-by: Christoph Hellwig diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 0ac54a0..081ccf3 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1287,28 +1287,18 @@ _xfs_buf_ioapply( blk_finish_plug(&plug); } -/* - * Asynchronous IO submission path. This transfers the buffer lock ownership and - * the current reference to the IO. It is not safe to reference the buffer after - * a call to this function unless the caller holds an additional reference - * itself. - */ -void -xfs_buf_submit( +static int +__xfs_buf_submit( struct xfs_buf *bp) { - trace_xfs_buf_submit(bp, _RET_IP_); - ASSERT(!(bp->b_flags & _XBF_DELWRI_Q)); - ASSERT(bp->b_flags & XBF_ASYNC); /* on shutdown we stale and complete the buffer immediately */ if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { xfs_buf_ioerror(bp, -EIO); bp->b_flags &= ~XBF_DONE; xfs_buf_stale(bp); - xfs_buf_ioend(bp); - return; + return -EIO; } if (bp->b_flags & XBF_WRITE) @@ -1318,12 +1308,8 @@ xfs_buf_submit( bp->b_io_error = 0; /* - * The caller's reference is released during I/O completion. - * This occurs some time after the last b_io_remaining reference is - * released, so after we drop our Io reference we have to have some - * other reference to ensure the buffer doesn't go away from underneath - * us. Take a direct reference to ensure we have safe access to the - * buffer until we are finished with it. + * Take a reference to ensure we have safe access to the buffer until + * we are finished with it. */ xfs_buf_hold(bp); @@ -1341,64 +1327,56 @@ xfs_buf_submit( * that we don't return to the caller with completion still pending. */ if (atomic_dec_and_test(&bp->b_io_remaining) == 1) { - if (bp->b_error) - xfs_buf_ioend(bp); - else + if ((bp->b_flags & XBF_ASYNC) && !bp->b_error) xfs_buf_ioend_async(bp); + else + xfs_buf_ioend(bp); } - xfs_buf_rele(bp); - /* Note: it is not safe to reference bp now we've dropped our ref */ + return 0; } /* - * Synchronous buffer IO submission path, read or write. + * Asynchronous IO submission path. This transfers the buffer lock ownership and + * the current reference to the IO. It is not safe to reference the buffer after + * a call to this function unless the caller holds an additional reference + * itself. */ -int -xfs_buf_submit_wait( +void +xfs_buf_submit( struct xfs_buf *bp) { int error; - trace_xfs_buf_submit_wait(bp, _RET_IP_); + trace_xfs_buf_submit(bp, _RET_IP_); - ASSERT(!(bp->b_flags & (_XBF_DELWRI_Q | XBF_ASYNC))); + ASSERT(bp->b_flags & XBF_ASYNC); - if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { - xfs_buf_ioerror(bp, -EIO); - xfs_buf_stale(bp); - bp->b_flags &= ~XBF_DONE; - return -EIO; - } + error = __xfs_buf_submit(bp); + if (error) + xfs_buf_ioend(bp); + else + xfs_buf_rele(bp); - if (bp->b_flags & XBF_WRITE) - xfs_buf_wait_unpin(bp); + /* Note: it is not safe to reference bp now we've dropped our ref */ +} - /* clear the internal error state to avoid spurious errors */ - bp->b_io_error = 0; +/* + * Synchronous buffer IO submission path, read or write. + */ +int +xfs_buf_submit_wait( + struct xfs_buf *bp) +{ + int error; - /* - * For synchronous IO, the IO does not inherit the submitters reference - * count, nor the buffer lock. Hence we cannot release the reference we - * are about to take until we've waited for all IO completion to occur, - * including any xfs_buf_ioend_async() work that may be pending. - */ - xfs_buf_hold(bp); + trace_xfs_buf_submit_wait(bp, _RET_IP_); - /* - * Set the count to 1 initially, this will stop an I/O completion - * callout which happens before we have started all the I/O from calling - * xfs_buf_ioend too early. - */ - atomic_set(&bp->b_io_remaining, 1); - _xfs_buf_ioapply(bp); + ASSERT(!(bp->b_flags & XBF_ASYNC)); - /* - * make sure we run completion synchronously if it raced with us and is - * already complete. - */ - if (atomic_dec_and_test(&bp->b_io_remaining) == 1) - xfs_buf_ioend(bp); + error = __xfs_buf_submit(bp); + if (error) + return error; /* wait for completion before gathering the error from the buffer */ trace_xfs_buf_iowait(bp, _RET_IP_); From olaf@sgi.com Fri Sep 26 09:06:28 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D82CC7FBC for ; Fri, 26 Sep 2014 09:06:28 -0500 (CDT) Received: from xmail.sgi.com (pv-excas3-dc21.corp.sgi.com [137.38.106.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id AD3FE8F8037; Fri, 26 Sep 2014 07:06:25 -0700 (PDT) Received: from [144.253.208.63] (144.253.208.63) by xmail.sgi.com (137.38.106.6) with Microsoft SMTP Server (TLS) id 14.3.195.1; Fri, 26 Sep 2014 09:06:25 -0500 Message-ID: <542572DE.6070106@sgi.com> Date: Fri, 26 Sep 2014 16:06:22 +0200 From: Olaf Weber Organization: SGI User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.2 MIME-Version: 1.0 To: Andi Kleen CC: Ben Myers , , , Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS References: <20140918195650.GI19952@sgi.com> <87lhpbhfgg.fsf@tassilo.jf.intel.com> <20140922184145.GH4482@sgi.com> <20140922192958.GJ4120@two.firstfloor.org> <54219C17.3090104@sgi.com> <20140923201540.GB15923@two.firstfloor.org> <5422A5F8.5040703@sgi.com> In-Reply-To: <5422A5F8.5040703@sgi.com> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [144.253.208.63] On 24-09-14 13:07, Olaf Weber wrote: > On 23-09-14 22:15, Andi Kleen wrote: > >>> A big part of the table does decompositions for Korean: eliminating >>> the Hangul decompositions removes 156320 bytes, leaving 89936 bytes. >> >> Are there regular ranges or other redundancies in the Korean encoding >> that could be used to compress paths? > > Yes, though at the expense of more complicated code and interfaces. in > particular, lookups that want a normalized string would need to provide a > 10-byte buffer to store it in. I spent some time working on this, and the effect on the lookup code isn't as bad as I'd thought. The updated code should be posted early next week. With this change, the table size for the full trie becomes 89952 bytes. Of this, 66400 bytes are spent on the NFKD + Ignorables, an additional 20992 bytes on NFDK + Ignorables + Case Fold. The remainder, 2560 bytes, are additional info for older unicode versions. Note that the NFDK + Ignorables + Case Fold trie forwards to the NFKD + Ignorables where they overlap. A stand-alone version would be 71750 bytes. As noted before these tables also contain the Canonical Combining Class and unicode version information for the code points. The latter allows for supporting multiple unicode versions using a single combined table. Olaf -- Olaf Weber SGI Phone: +31(0)30-6696796 Veldzigt 2b Fax: +31(0)30-6696799 Technical Lead 3454 PW de Meern Vnet: 955-6796 Storage Software The Netherlands Email: olaf@sgi.com From olaf@sgi.com Fri Sep 26 09:50:46 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 306B08018 for ; Fri, 26 Sep 2014 09:50:46 -0500 (CDT) Received: from xmail.sgi.com (pv-excas3-dc21.corp.sgi.com [137.38.106.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id DF6BD304048; Fri, 26 Sep 2014 07:50:42 -0700 (PDT) Received: from [144.253.208.63] (144.253.208.63) by xmail.sgi.com (137.38.106.6) with Microsoft SMTP Server (TLS) id 14.3.195.1; Fri, 26 Sep 2014 09:50:42 -0500 Message-ID: <54257D3F.70302@sgi.com> Date: Fri, 26 Sep 2014 16:50:39 +0200 From: Olaf Weber Organization: SGI User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.2 MIME-Version: 1.0 To: Dave Chinner CC: Ben Myers , , , Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS References: <20140918195650.GI19952@sgi.com> <20140922222611.GZ4322@dastard> <5422C540.1060007@sgi.com> <20140924231024.GA4758@dastard> In-Reply-To: <20140924231024.GA4758@dastard> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [144.253.208.63] On 25-09-14 01:10, Dave Chinner wrote: > On Wed, Sep 24, 2014 at 03:21:04PM +0200, Olaf Weber wrote: >> On 23-09-14 00:26, Dave Chinner wrote: >>> On Thu, Sep 18, 2014 at 02:56:50PM -0500, Ben Myers wrote: >> >> [...] >> >>>> TODO: Store the unicode version number of the filesystem on disk in the >>>> super block. >>> >>> So, if the filesystem has to store the specific unicode version it >>> was created with so that we know what version to put in trie >>> lookups, again I'll ask: why are we loading the trie as a generic >>> kernel module and not as metadata in the filesystem that is demand >>> paged and cached? >> >> This way the trie can be shared, and the code using it is not >> entangled with the XFS code. > > The trie parsing code can still be common - just the location and > contents of the data is determined by the end-user. I'm not sure how common the parsing code can be if needs to be capable of retrieving data from a filesystem. Note given your and Andi Kleen's feedback on the trie size I've switched to doing algorithmic decomposition for Hangul. This reduces the size of the trie to 89952 bytes. In addition, if you store the trie in the filesystem, then the only part that needs storing is the version for that particular filesystem, e.g no compatibility info for different unicode versions would be required. This would reduce the trie size to about 50kB for case-sensitive filesystems, and about 55kB on case-folding filesystems. [...] >>> [...] Why should we let filesystems say "we fully >>> understand and support utf8" and then allow them to accept and >>> propagate invalid utf8 sequences and leave everyone else to have to >>> clean up the mess? >> >> Because the alternative amounts in my opinion to a demand that every >> bit of userspace that may be involved in generating filenames >> generate only clean UTF-8. I do not believe that this is a realistic >> demand at this point in time. > > It's a chicken and egg situation. I'd much prefer we enforce clean > utf8 from the start, because if we don't we'll never be able to do > that. And other filesystems (e.g. ZFS) allow you to do reject > anything that is not clean utf8.... As I understand it, this is optional in ZFS. I wonder what people's experiences are with this. [...] >>> Yet normalised strings are only stable and hence comparable >>> if there are no unassigned code points in them. What happens when >>> userspace is not using the same version of unicode as the >>> filesystem and is using newer code points in it's strings? >>> Normalisation fails, right? >> >> For the newer code points, yes. This is not treated as a failure to >> normalize the string as a whole, as there are clear guidelines in >> unicode on how unassigned code points interact with normalization: >> they have canonical combining class 0 and no decomposition. > > And so effectively are not stable. Which is something we absolutely > have to avoid for information stored on disk. i.e. you're using the > normalised form to build the hash values in the lookup index in the > directory structure, and so having unstable normalisation forms is > just wrong. Hence we'd need to reject anything with unassigned code > points.... On a particular filesystem, the calculated normalization would be stable. >>> And as an extension of using normalisation for case-folded >>> comparisons, how do we make case folding work with blobs that can't >>> be normalised? It seems to me that this just leads to the nasty >>> situation where some filenames are case sensitive and some aren't >>> based on what the filesystem thinks is valid utf-8. The worst part >>> is that userspace has no idea that the filesystem is making such >>> distinctions and so behaviour is not at all predictable or expected. >> >> Making case-folding work on a blob that cannot be normalized is (in >> my opinion) akin to doing an ASCII-based casefold on a Shift-JIS >> string: the result is neither pretty nor useful. > > Yes, that's exactly my point. But apparently we draw different conclusions from it. >>> This is another point in favour of rejecting invalid utf-8 strings >>> and for keeping the translation tables stable within the >>> filesystem... >> >> Bear in mind that this means not just rejecting invalid UTF-8 >> strings, but also rejecting valid UTF-8 strings that encode >> unassigned code points. > > And that's precisely what I'm suggesting: If we can't normalise the > filename to a stable form then it cannot be used for hashing or case > folding. That means it needs to be rejected, not treated as an > opaque blob. > > The moment we start parsing filenames they are no longer opaque > blobs and so all existing "filename are opaque blobs" handling rules > go out the window. They are now either valid so we can use them, or > they are invalid and need to be rejected to avoid unpredictable > and/or undesirable behaviour. At this point I'd really like other people to weigh in on this and get a sense of how sentiment is spread on the question. - Forbid non-UTF-8 filenames - Allow non-UTF-8 filenames - Make it a mount option - Make it a mkfs option [...] >>>> The most contentious part is (should be) ignoring the codepoints with >>>> the Default_Ignorable_Code_Point property. I've included the list >>>> below. My argument, such as it is, is that these code points either >>>> have no visible rendering, or in cases like the soft hyphen, are only >>>> conditionally visible. The problem with these (as I see it) is that on >>>> seeing a filename that might contain them you cannot tell whether they >>>> are present. So I propose to ignore them for the purpose of comparing >>>> filenames for equality. >>> >>> Which introduces a non-standard "visibility criterial" for >>> determining what should be or shouldn't be part of the normalised >>> string for comparison. I don't see any real justification for >>> stepping outside the standard unicode normalisation here - just >>> because the user cannot see a character in a specific context does >>> not mean that it is not significant to the application that created >>> it. >> >> I agree these characters may be significant to the application. I'm >> just not convinced that they should be significant in a file name. > > They are significant to the case folding result, right? And > therefore would be significant in a filename... Case Folding doesn't affect the ignorables, so in that sense at least they're not significant to the case folding result, even if you do not ignore them. [...] > Hence my comments about NLS integration. The NLS subsystem already > has utf8 support with language dependent case folding tables. All the > current filesystems that deal with unicode (including case folding) > use the NLS subsystem for conversions. Looking at the NLS subsystem I see support for translating a number of different encodings ("code pages") to unicode and back. There is support for uppercase/lowercase translation for a number of those encodings. Which is not the same as language dependent case folding. As for a unicode case fold, I see no support at all. In nls_utf8.c the uppercase/lowercase mappings are set to the identity maps. I see no support for unicode normalization forms either. > Hmmm - looking at all the NLS code that does different utf format > conversions first: what happens if an application is using UTF16 or > UTF32 for it's filename encoding rather than utf8? Since UTF-16 and UTF-32 strings contain embedded 0 bytes, those encodings cannot be used to pass a filename across the kernel/userspace interface. >>>> * XFS-specific design notes. >>> ... >>>> If the borgbit (the bit enabling legacy ASCII-based CI in XFS) is set >>>> in the superblock, then case folding is added into the mix. This is >>>> the nfkdicf normalization form mentioned above. It allows for the >>>> creation of case-insensitive filesystems with UTF-8 support. >>> >>> Please don't overload existing superblock feature bits with multiple >>> meanings. ASCII-CI is a stand-alone feature and is not in any way >>> compatible with Unicode: Unicode-CI is a superset of Unicode >>> support. So it really needs two new feature bits for Unicode and >>> Unicode-CI, not just one for unicode. >> >> It seemed an obvious extension of the meaning of that bit. > > Feature bits refer to a specific on disk format feature. If that bit > is set, then that feature is present. In this case, it means the > filesystem is using ascii-ci. If that bit is passed out to > userspace via the geometry ioctl, then *existing applications* > expect it to mean ascii-ci behaviour from the filesystem. If an > existing utility reads the flag field from disk (e.g. repair, > metadump, db, etc) they all expect it to mean ascii-ci, and will do > stuff based on that specific meaning. We cannot redefine the meaning > of a feature bit after the fact - we have lots of feature bits so > there's no need to overload an existing one for this. Good point. > Hmmm - another interesting question just popped into my head about > metadump: file name obfuscation. What does unicode and utf8 mean > for the hash collision calculation algorithm? Good question. Olaf -- Olaf Weber SGI Phone: +31(0)30-6696796 Veldzigt 2b Fax: +31(0)30-6696799 Technical Lead 3454 PW de Meern Vnet: 955-6796 Storage Software The Netherlands Email: olaf@sgi.com From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 11:56:08 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id BA6867FB3 for ; Fri, 26 Sep 2014 11:56:08 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 95E878F8049 for ; Fri, 26 Sep 2014 09:56:08 -0700 (PDT) X-ASG-Debug-ID: 1411750566-04cbb073033de640001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id lwFzjDljgHXZo75U (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO); Fri, 26 Sep 2014 09:56:06 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXYoP-0001Ki-O9; Fri, 26 Sep 2014 16:56:05 +0000 Date: Fri, 26 Sep 2014 09:56:05 -0700 From: Christoph Hellwig To: Olaf Weber Cc: Dave Chinner , Ben Myers , linux-fsdevel@vger.kernel.org, tinguely@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS Message-ID: <20140926165605.GA25274@infradead.org> X-ASG-Orig-Subj: Re: [RFC v2] Unicode/UTF-8 support for XFS References: <20140918195650.GI19952@sgi.com> <20140922222611.GZ4322@dastard> <5422C540.1060007@sgi.com> <20140924231024.GA4758@dastard> <54257D3F.70302@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <54257D3F.70302@sgi.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411750566 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9912 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Fri, Sep 26, 2014 at 04:50:39PM +0200, Olaf Weber wrote: > I'm not sure how common the parsing code can be if needs to be capable of > retrieving data from a filesystem. > > Note given your and Andi Kleen's feedback on the trie size I've switched to > doing algorithmic decomposition for Hangul. This reduces the size of the > trie to 89952 bytes. > > In addition, if you store the trie in the filesystem, then the only part > that needs storing is the version for that particular filesystem, e.g no > compatibility info for different unicode versions would be required. This > would reduce the trie size to about 50kB for case-sensitive filesystems, and > about 55kB on case-folding filesystems. Honestly I wouldn't worry about demand loading it too much. This is a fairly special case code for NAS servers, and should not affect normal uses now that we use symbol_get. Let's get back to the fundamentals. > >It's a chicken and egg situation. I'd much prefer we enforce clean > >utf8 from the start, because if we don't we'll never be able to do > >that. And other filesystems (e.g. ZFS) allow you to do reject > >anything that is not clean utf8.... > > As I understand it, this is optional in ZFS. I wonder what people's > experiences are with this. It is as optional as your utf8 support for XFS is. But they do enforce valid utf8 if they use utf8 normalization for file name comparisms, be that case sensitive or insensitive. Take a look at the zfs(8) man page. > - Forbid non-UTF-8 filenames > - Allow non-UTF-8 filenames > - Make it a mount option > - Make it a mkfs option My take on this is: - I think we'll have to prevent non-utf8 file names for any cases where we use utf8 normalization. If you do not use utf8 normalization it's plain old Unix everything is allowed. - I think utf8 normalization vs not should be mkfs option, to make sure everyone including kernel and repair knows what sort of filesystem deal with. - case insensitive matching for utf8 normalized filesystems should be a runtime decision. mount time for now, but Samba people would be extremly happy to allow per-operation or per-process CI matching. But that is another totally different discusion I'd like to keep separate, I just want to make sure the disk format allows for it for now. From jra@samba.org Fri Sep 26 12:04:15 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 011B87F56 for ; Fri, 26 Sep 2014 12:04:15 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id E447E8F8040 for ; Fri, 26 Sep 2014 10:04:11 -0700 (PDT) X-ASG-Debug-ID: 1411751049-04cb6c50e62f8170001-NocioJ Received: from mail.samba.org (fn.samba.org [216.83.154.106]) by cuda.sgi.com with ESMTP id GG9OBJeEH9eoH7l8 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 10:04:10 -0700 (PDT) X-Barracuda-Envelope-From: jra@samba.org X-Barracuda-Apparent-Source-IP: 216.83.154.106 Received: from mail.samba.org (localhost [127.0.0.1]) by mail.samba.org (Postfix) with ESMTP id 9793FACF0B; Fri, 26 Sep 2014 11:04:09 -0600 (MDT) Received: by mail.samba.org (Postfix, from userid 549) id 8E223ACF30; Fri, 26 Sep 2014 11:04:09 -0600 (MDT) Date: Fri, 26 Sep 2014 10:04:07 -0700 From: Jeremy Allison To: Christoph Hellwig Cc: Olaf Weber , Dave Chinner , Ben Myers , linux-fsdevel@vger.kernel.org, tinguely@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS Message-ID: <20140926170407.GB6012@samba2> X-ASG-Orig-Subj: Re: [RFC v2] Unicode/UTF-8 support for XFS Reply-To: Jeremy Allison References: <20140918195650.GI19952@sgi.com> <20140922222611.GZ4322@dastard> <5422C540.1060007@sgi.com> <20140924231024.GA4758@dastard> <54257D3F.70302@sgi.com> <20140926165605.GA25274@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140926165605.GA25274@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: fn.samba.org[216.83.154.106] X-Barracuda-Start-Time: 1411751050 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9912 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Sep 26, 2014 at 09:56:05AM -0700, Christoph Hellwig wrote: > > My take on this is: > > - I think we'll have to prevent non-utf8 file names for any cases where > we use utf8 normalization. If you do not use utf8 normalization > it's plain old Unix everything is allowed. > > - I think utf8 normalization vs not should be mkfs option, to make sure > everyone including kernel and repair knows what sort of filesystem > deal with. > > - case insensitive matching for utf8 normalized filesystems should be > a runtime decision. mount time for now, but Samba people would be > extremly happy to allow per-operation or per-process CI matching. > But that is another totally different discusion I'd like to keep > separate, I just want to make sure the disk format allows for it for > now. Actually, I'm so eager for case-insensitive matching I'd take "at format time", as with ZFS :-) :-). Having CI matching can speed up Samba operations by a factor of 10 on large directories (warning, number made up, depending on the number of entries per dir :-). Jeremy. From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 12:06:09 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id A99E47FE2 for ; Fri, 26 Sep 2014 12:06:09 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 47D10AC001 for ; Fri, 26 Sep 2014 10:06:06 -0700 (PDT) X-ASG-Debug-ID: 1411751165-04bdf0039f35c010001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id ulubtvfW8RX3Ecwn (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO); Fri, 26 Sep 2014 10:06:05 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXYy4-00070T-Tu; Fri, 26 Sep 2014 17:06:04 +0000 Date: Fri, 26 Sep 2014 10:06:04 -0700 From: Christoph Hellwig To: Jeremy Allison Cc: Olaf Weber , Dave Chinner , Ben Myers , linux-fsdevel@vger.kernel.org, tinguely@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS Message-ID: <20140926170604.GA21287@infradead.org> X-ASG-Orig-Subj: Re: [RFC v2] Unicode/UTF-8 support for XFS References: <20140918195650.GI19952@sgi.com> <20140922222611.GZ4322@dastard> <5422C540.1060007@sgi.com> <20140924231024.GA4758@dastard> <54257D3F.70302@sgi.com> <20140926165605.GA25274@infradead.org> <20140926170407.GB6012@samba2> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140926170407.GB6012@samba2> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411751165 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9912 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Fri, Sep 26, 2014 at 10:04:07AM -0700, Jeremy Allison wrote: > Actually, I'm so eager for case-insensitive matching I'd > take "at format time", as with ZFS :-) :-). You already get this with XFS as long as you limit yourself to 7-bit ASCII :) And utf-8 with Olaf's patches as-is. Maybe time to give them some testing? From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 12:09:44 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id CA4A27FEF for ; Fri, 26 Sep 2014 12:09:44 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 994F18F8050 for ; Fri, 26 Sep 2014 10:09:44 -0700 (PDT) X-ASG-Debug-ID: 1411751383-04bdf003a235c300001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id SRupiNM6JYHK1Yom (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO); Fri, 26 Sep 2014 10:09:43 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXZ1b-0007qg-GZ; Fri, 26 Sep 2014 17:09:43 +0000 Date: Fri, 26 Sep 2014 10:09:43 -0700 From: Christoph Hellwig To: Dave Chinner Cc: Ben Myers , linux-fsdevel@vger.kernel.org, tinguely@sgi.com, olaf@sgi.com, xfs@oss.sgi.com Subject: Re: [PATCH 06/10] xfs: add unicode character database files Message-ID: <20140926170943.GA28044@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 06/10] xfs: add unicode character database files References: <20140918195650.GI19952@sgi.com> <20140918201440.GI4482@sgi.com> <20140922205438.GM4267@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140922205438.GM4267@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411751383 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9912 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Tue, Sep 23, 2014 at 06:54:38AM +1000, Dave Chinner wrote: > This probably needs to live somewhere under lib/. There's nothing > XFS specific in it and the translations should be the same for > anything that wants to parse unicode. Agreed. From BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org Fri Sep 26 12:10:15 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C15687FEF for ; Fri, 26 Sep 2014 12:10:15 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id B0430304053 for ; Fri, 26 Sep 2014 10:10:15 -0700 (PDT) X-ASG-Debug-ID: 1411751410-04cb6c50e72f8650001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id DKote9dUJIIWfr5c (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO); Fri, 26 Sep 2014 10:10:11 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e511363bc4c2fd8a5f74+4051+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XXZ22-0000oT-Qh; Fri, 26 Sep 2014 17:10:10 +0000 Date: Fri, 26 Sep 2014 10:10:10 -0700 From: Christoph Hellwig To: Ben Myers Cc: Dave Chinner , linux-fsdevel@vger.kernel.org, tinguely@sgi.com, olaf@sgi.com, xfs@oss.sgi.com Subject: Re: [PATCH 07/10] xfs: add trie generator and supporting code for UTF-8. Message-ID: <20140926171010.GB28044@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 07/10] xfs: add trie generator and supporting code for UTF-8. References: <20140918195650.GI19952@sgi.com> <20140918201518.GJ4482@sgi.com> <20140922205714.GN4267@dastard> <20140923185721.GV19952@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140923185721.GV19952@sgi.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411751411 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9912 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Tue, Sep 23, 2014 at 01:57:21PM -0500, Ben Myers wrote: > I'll get this moved to lib/ as you suggested elsewhere in the > thread. Given that this is a host side tool it should be under scripts/ From jra@samba.org Fri Sep 26 12:13:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BB7737FF3 for ; Fri, 26 Sep 2014 12:13:40 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 5532FAC004 for ; Fri, 26 Sep 2014 10:13:40 -0700 (PDT) X-ASG-Debug-ID: 1411751618-04cb6c50e52f8830001-NocioJ Received: from mail.samba.org (fn.samba.org [216.83.154.106]) by cuda.sgi.com with ESMTP id WLghTvkb8MWkV7ku (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 10:13:39 -0700 (PDT) X-Barracuda-Envelope-From: jra@samba.org X-Barracuda-Apparent-Source-IP: 216.83.154.106 Received: from mail.samba.org (localhost [127.0.0.1]) by mail.samba.org (Postfix) with ESMTP id 9C737ACEFB; Fri, 26 Sep 2014 11:13:38 -0600 (MDT) Received: by mail.samba.org (Postfix, from userid 549) id 929DAACF0B; Fri, 26 Sep 2014 11:13:38 -0600 (MDT) Date: Fri, 26 Sep 2014 10:13:36 -0700 From: Jeremy Allison To: Christoph Hellwig Cc: Jeremy Allison , Olaf Weber , Dave Chinner , Ben Myers , linux-fsdevel@vger.kernel.org, tinguely@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS Message-ID: <20140926171336.GC6012@samba2> X-ASG-Orig-Subj: Re: [RFC v2] Unicode/UTF-8 support for XFS Reply-To: Jeremy Allison References: <20140918195650.GI19952@sgi.com> <20140922222611.GZ4322@dastard> <5422C540.1060007@sgi.com> <20140924231024.GA4758@dastard> <54257D3F.70302@sgi.com> <20140926165605.GA25274@infradead.org> <20140926170407.GB6012@samba2> <20140926170604.GA21287@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140926170604.GA21287@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: fn.samba.org[216.83.154.106] X-Barracuda-Start-Time: 1411751619 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9912 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Sep 26, 2014 at 10:06:04AM -0700, Christoph Hellwig wrote: > On Fri, Sep 26, 2014 at 10:04:07AM -0700, Jeremy Allison wrote: > > Actually, I'm so eager for case-insensitive matching I'd > > take "at format time", as with ZFS :-) :-). > > You already get this with XFS as long as you limit yourself to > 7-bit ASCII :) Thankyou for playing, here's a $10 gift token... No, that won't do I'm afraid :-). > And utf-8 with Olaf's patches as-is. > > Maybe time to give them some testing? I might do that, once I've finished rebuilding my home server (remember kids, RAID5 is *NOT* a backup :-) :-). From bpm@sgi.com Fri Sep 26 12:30:15 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 5D3017F52 for ; Fri, 26 Sep 2014 12:30:15 -0500 (CDT) Received: from whiskey.americas.sgi.com (whiskey.americas.sgi.com [128.162.233.19]) by relay1.corp.sgi.com (Postfix) with ESMTP id 32FE98F8037; Fri, 26 Sep 2014 10:30:14 -0700 (PDT) Received: by whiskey.americas.sgi.com (Postfix, from userid 4600) id 7DC254266DC; Fri, 26 Sep 2014 12:30:14 -0500 (CDT) Date: Fri, 26 Sep 2014 12:30:14 -0500 From: Ben Myers To: Christoph Hellwig Cc: Olaf Weber , Dave Chinner , linux-fsdevel@vger.kernel.org, tinguely@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS Message-ID: <20140926173014.GK19952@sgi.com> References: <20140918195650.GI19952@sgi.com> <20140922222611.GZ4322@dastard> <5422C540.1060007@sgi.com> <20140924231024.GA4758@dastard> <54257D3F.70302@sgi.com> <20140926165605.GA25274@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140926165605.GA25274@infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) Hey Christoph, On Fri, Sep 26, 2014 at 09:56:05AM -0700, Christoph Hellwig wrote: > On Fri, Sep 26, 2014 at 04:50:39PM +0200, Olaf Weber wrote: > > >It's a chicken and egg situation. I'd much prefer we enforce clean > > >utf8 from the start, because if we don't we'll never be able to do > > >that. And other filesystems (e.g. ZFS) allow you to do reject > > >anything that is not clean utf8.... > > > > As I understand it, this is optional in ZFS. I wonder what people's > > experiences are with this. > > It is as optional as your utf8 support for XFS is. But they do > enforce valid utf8 if they use utf8 normalization for file name > comparisms, be that case sensitive or insensitive. Take a look at the > zfs(8) man page. The way I'm reading that man page, it seems like with ZFS you have one option to choose whether to use normalization: 'nomalization = "none|FormD|FormKCf"' And a separate option to choose whether to accept non-utf8 filenames: 'utf8only = "on|off". The default setting appears to be that ZFS does allow non-utf8 filenames. Whereas with Olaf's series you have one option that turns normalization on or off, and he is not giving you a choice of whether non-utf8 filenames will be accepted (they will be accepted). So IIUC there is a distinction: The utf8 support for ZFS is "more optional" than the utf8 support for XFS. Regards, Ben From bfoster@redhat.com Fri Sep 26 13:32:36 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id CE7388021 for ; Fri, 26 Sep 2014 13:32:36 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id BDB2E304053 for ; Fri, 26 Sep 2014 11:32:33 -0700 (PDT) X-ASG-Debug-ID: 1411756351-04cb6c50e42fc830001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id KZAPmhHoy4CEpRtE (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 11:32:32 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8QIWV6X014591 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 26 Sep 2014 14:32:31 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8QIWVxZ004944; Fri, 26 Sep 2014 14:32:31 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id E8B90120064; Fri, 26 Sep 2014 14:32:29 -0400 (EDT) From: Brian Foster To: fstests@vger.kernel.org Cc: xfs@oss.sgi.com Subject: [PATCH] xfs/053: test for stale data exposure via falloc/writeback interaction Date: Fri, 26 Sep 2014 14:32:29 -0400 X-ASG-Orig-Subj: [PATCH] xfs/053: test for stale data exposure via falloc/writeback interaction Message-Id: <1411756349-4537-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411756352 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 XFS buffered I/O writeback has a subtle race condition that leads to stale data exposure if the filesystem happens to crash after delayed allocation blocks are converted on disk and before data is written back to said blocks. Use file allocation commands to attempt to reproduce a related, but slightly different variant of this problem. The associated falloc commands can lead to partial writeback that converts an extent larger than the range affected by falloc. If the filesystem crashes after the extent conversion but before all other cached data is written to the extent, stale data can be exposed. Signed-off-by: Brian Foster --- This fell out of a combination of a conversation with Dave about XFS writeback and buffer/cache coherency and some hacking I'm doing on the XFS zero range implementation. Note that fpunch currently fails the test. Also, this test is XFS specific primarily due to the use of godown. Brian tests/xfs/053 | 101 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/053.out | 10 ++++++ tests/xfs/group | 1 + 3 files changed, 112 insertions(+) create mode 100755 tests/xfs/053 create mode 100644 tests/xfs/053.out diff --git a/tests/xfs/053 b/tests/xfs/053 new file mode 100755 index 0000000..4fba127 --- /dev/null +++ b/tests/xfs/053 @@ -0,0 +1,101 @@ +#! /bin/bash +# FS QA Test No. 053 +# +# Test stale data exposure via writeback using various file allocation +# modification commands. The presumption is that such commands result in partial +# writeback and can convert a delayed allocation extent, that might be larger +# than the ranged affected by fallocate, to a normal extent. If the fs happens +# to crash sometime between when the extent modification is logged and writeback +# occurs for dirty pages within the extent but outside of the fallocated range, +# stale data exposure can occur. +# +#----------------------------------------------------------------------- +# Copyright (c) 2014 Red Hat, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/punch + +# real QA test starts here +rm -f $seqres.full + +_crashtest() +{ + cmd=$1 + img=$SCRATCH_MNT/$seq.img + mnt=$SCRATCH_MNT/$seq.mnt + file=$mnt/file + + # Create an fs on a small, initialized image. The pattern is written to + # the image to detect stale data exposure. + $XFS_IO_PROG -f -c "truncate 0" -c "pwrite 0 25M" $img \ + >> $seqres.full 2>&1 + $MKFS_XFS_PROG $MKFS_OPTIONS $img >> $seqres.full 2>&1 + + mkdir -p $mnt + mount $img $mnt + + echo $cmd + + # write, run the test command and shutdown the fs + $XFS_IO_PROG -f -c "pwrite -S 1 0 64k" -c "$cmd 60k 4k" $file | \ + _filter_xfs_io + ./src/godown -f $mnt + + umount $mnt + mount $img $mnt + + # we generally expect a zero-sized file (this should be silent) + hexdump $file + + umount $mnt +} + +# Modify as appropriate. +_supported_fs xfs +_supported_os Linux +_require_scratch +_require_xfs_io_command "falloc" +_require_xfs_io_command "fpunch" +_require_xfs_io_command "fzero" + +_scratch_mkfs >/dev/null 2>&1 +_scratch_mount + +_crashtest "falloc -k" +_crashtest "fpunch" +_crashtest "fzero -k" + +status=0 +exit diff --git a/tests/xfs/053.out b/tests/xfs/053.out new file mode 100644 index 0000000..c777fe2 --- /dev/null +++ b/tests/xfs/053.out @@ -0,0 +1,10 @@ +QA output created by 053 +falloc -k +wrote 65536/65536 bytes at offset 0 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +fpunch +wrote 65536/65536 bytes at offset 0 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +fzero -k +wrote 65536/65536 bytes at offset 0 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) diff --git a/tests/xfs/group b/tests/xfs/group index 09bce15..408e617 100644 --- a/tests/xfs/group +++ b/tests/xfs/group @@ -49,6 +49,7 @@ 050 quota auto quick 051 auto log metadata 052 quota db auto quick +053 auto quick rw 054 quota auto quick 055 dump ioctl remote tape 056 dump ioctl auto quick -- 1.8.3.1 From olaf@sgi.com Fri Sep 26 14:37:18 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 5FC7829E01 for ; Fri, 26 Sep 2014 14:37:18 -0500 (CDT) Received: from xmail.sgi.com (pv-excas3-dc21.corp.sgi.com [137.38.106.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 2F075304048; Fri, 26 Sep 2014 12:37:15 -0700 (PDT) Received: from [134.15.1.42] (134.15.1.42) by xmail.sgi.com (137.38.106.6) with Microsoft SMTP Server (TLS) id 14.3.195.1; Fri, 26 Sep 2014 14:37:14 -0500 Message-ID: <5425C067.7080904@sgi.com> Date: Fri, 26 Sep 2014 21:37:11 +0200 From: Olaf Weber Organization: SGI User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.2 MIME-Version: 1.0 To: Jeremy Allison , Christoph Hellwig CC: Dave Chinner , Ben Myers , , , Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS References: <20140918195650.GI19952@sgi.com> <20140922222611.GZ4322@dastard> <5422C540.1060007@sgi.com> <20140924231024.GA4758@dastard> <54257D3F.70302@sgi.com> <20140926165605.GA25274@infradead.org> <20140926170407.GB6012@samba2> In-Reply-To: <20140926170407.GB6012@samba2> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [134.15.1.42] On 26-09-14 19:04, Jeremy Allison wrote: > On Fri, Sep 26, 2014 at 09:56:05AM -0700, Christoph Hellwig wrote: >> >> My take on this is: >> >> - I think we'll have to prevent non-utf8 file names for any cases where >> we use utf8 normalization. If you do not use utf8 normalization >> it's plain old Unix everything is allowed. >> >> - I think utf8 normalization vs not should be mkfs option, to make sure >> everyone including kernel and repair knows what sort of filesystem >> deal with. >> >> - case insensitive matching for utf8 normalized filesystems should be >> a runtime decision. mount time for now, but Samba people would be >> extremly happy to allow per-operation or per-process CI matching. >> But that is another totally different discusion I'd like to keep >> separate, I just want to make sure the disk format allows for it for >> now. > > Actually, I'm so eager for case-insensitive matching I'd > take "at format time", as with ZFS :-) :-). My argument against "mount time case-insensitivity" and for "mkfs time case-insensitivity" is related to switching from the case-sensitive domain to the case-insensitive one. For case-sensitive, from "README" to "readme" there are 64 different possible filenames. Let's say you create 63 out of these 64. Now remount the filesystem case-insensitive, and try to open by the 64th version of "readme". It is not an exact match for any of the 63 candidate files, and a case-insensitive match to all 63 candidate files. Which of these 63 files should be opened, and why that one in particular? > Having CI matching can speed up Samba operations by a > factor of 10 on large directories (warning, number made > up, depending on the number of entries per dir :-). I really want that to be true, but the proof of the pudding... Olaf -- Olaf Weber SGI Phone: +31(0)30-6696796 Veldzigt 2b Fax: +31(0)30-6696799 Technical Lead 3454 PW de Meern Vnet: 955-6796 Storage Software The Netherlands Email: olaf@sgi.com From jra@samba.org Fri Sep 26 14:47:01 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9D86F7F62 for ; Fri, 26 Sep 2014 14:47:01 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 6DA5E304048 for ; Fri, 26 Sep 2014 12:47:01 -0700 (PDT) X-ASG-Debug-ID: 1411760820-04bdf003a0363250001-NocioJ Received: from mail.samba.org (fn.samba.org [216.83.154.106]) by cuda.sgi.com with ESMTP id Npvp5e3FRROqNC4X (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 26 Sep 2014 12:47:00 -0700 (PDT) X-Barracuda-Envelope-From: jra@samba.org X-Barracuda-Apparent-Source-IP: 216.83.154.106 Received: from mail.samba.org (localhost [127.0.0.1]) by mail.samba.org (Postfix) with ESMTP id 0342EACF30; Fri, 26 Sep 2014 13:47:00 -0600 (MDT) Received: by mail.samba.org (Postfix, from userid 549) id EB392ACF32; Fri, 26 Sep 2014 13:46:59 -0600 (MDT) Date: Fri, 26 Sep 2014 12:46:56 -0700 From: Jeremy Allison To: Olaf Weber Cc: Jeremy Allison , Christoph Hellwig , Dave Chinner , Ben Myers , linux-fsdevel@vger.kernel.org, tinguely@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS Message-ID: <20140926194656.GC13066@samba2> X-ASG-Orig-Subj: Re: [RFC v2] Unicode/UTF-8 support for XFS Reply-To: Jeremy Allison References: <20140918195650.GI19952@sgi.com> <20140922222611.GZ4322@dastard> <5422C540.1060007@sgi.com> <20140924231024.GA4758@dastard> <54257D3F.70302@sgi.com> <20140926165605.GA25274@infradead.org> <20140926170407.GB6012@samba2> <5425C067.7080904@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5425C067.7080904@sgi.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: fn.samba.org[216.83.154.106] X-Barracuda-Start-Time: 1411760820 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9916 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Sep 26, 2014 at 09:37:11PM +0200, Olaf Weber wrote: > > My argument against "mount time case-insensitivity" and for "mkfs > time case-insensitivity" is related to switching from the > case-sensitive domain to the case-insensitive one. > > For case-sensitive, from "README" to "readme" there are 64 different > possible filenames. Let's say you create 63 out of these 64. Now > remount the filesystem case-insensitive, and try to open by the 64th > version of "readme". It is not an exact match for any of the 63 > candidate files, and a case-insensitive match to all 63 candidate > files. Which of these 63 files should be opened, and why that one in > particular? I'm ok with "mkfs time case-insensitivity" - really ! Most of my OEMs would set that and claim victory (few of them care much about NFS semantics :-). > >Having CI matching can speed up Samba operations by a > >factor of 10 on large directories (warning, number made > >up, depending on the number of entries per dir :-). > > I really want that to be true, but the proof of the pudding... No it really *is* true. The reason I can't give exact numbers is it depends on the number of entries. Remember, for every cache *miss*, we have to scan the entire directory. So a user asks for README, and we attempt that and it fails. So now we have to enumerate the entire directory to see if READMe (or any other case varient) exists. Now do that in a directory with 10, 100, 1000, .... 10000000 existing files (don't laugh, I've seen an application for Music files that did *exactly* that). On a case insensitive filesystem you just request README and you're done. Certain vendors who shall remain nameless :-) created test cases of just this example to show how much storage on Linux sucks. Not a happy camper about that - and telling them to use ZFS on FreeBSD or Solaris just doesn't feel right :-). Jeremy. From olaf@sgi.com Fri Sep 26 15:03:58 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8422B7F9A for ; Fri, 26 Sep 2014 15:03:58 -0500 (CDT) Received: from xmail.sgi.com (pv-excas3-dc21.corp.sgi.com [137.38.106.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 456A28F8040; Fri, 26 Sep 2014 13:03:55 -0700 (PDT) Received: from [134.15.1.42] (134.15.1.42) by xmail.sgi.com (137.38.106.6) with Microsoft SMTP Server (TLS) id 14.3.195.1; Fri, 26 Sep 2014 15:03:54 -0500 Message-ID: <5425C6A6.3060003@sgi.com> Date: Fri, 26 Sep 2014 22:03:50 +0200 From: Olaf Weber Organization: SGI User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.2 MIME-Version: 1.0 To: Jeremy Allison CC: Christoph Hellwig , Dave Chinner , Ben Myers , , , Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS References: <20140918195650.GI19952@sgi.com> <20140922222611.GZ4322@dastard> <5422C540.1060007@sgi.com> <20140924231024.GA4758@dastard> <54257D3F.70302@sgi.com> <20140926165605.GA25274@infradead.org> <20140926170407.GB6012@samba2> <5425C067.7080904@sgi.com> <20140926194656.GC13066@samba2> In-Reply-To: <20140926194656.GC13066@samba2> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [134.15.1.42] On 26-09-14 21:46, Jeremy Allison wrote: > On Fri, Sep 26, 2014 at 09:37:11PM +0200, Olaf Weber wrote: >> >> My argument against "mount time case-insensitivity" and for "mkfs >> time case-insensitivity" is related to switching from the >> case-sensitive domain to the case-insensitive one. >> >> For case-sensitive, from "README" to "readme" there are 64 different >> possible filenames. Let's say you create 63 out of these 64. Now >> remount the filesystem case-insensitive, and try to open by the 64th >> version of "readme". It is not an exact match for any of the 63 >> candidate files, and a case-insensitive match to all 63 candidate >> files. Which of these 63 files should be opened, and why that one in >> particular? > > I'm ok with "mkfs time case-insensitivity" - really ! > Most of my OEMs would set that and claim victory (few > of them care much about NFS semantics :-). I'd say you can have CIFS-style case-insensitive semantics or NFS-style case-sensitive semantics, but not both. And in particular, that a customer should not actually want to have both. >>> Having CI matching can speed up Samba operations by a >>> factor of 10 on large directories (warning, number made >>> up, depending on the number of entries per dir :-). >> >> I really want that to be true, but the proof of the pudding... > > No it really *is* true. The reason I can't give > exact numbers is it depends on the number of entries. > > Remember, for every cache *miss*, we have to scan > the entire directory. > > So a user asks for README, and we attempt that > and it fails. So now we have to enumerate the > entire directory to see if READMe (or any other > case varient) exists. > > Now do that in a directory with 10, 100, 1000, > .... 10000000 existing files (don't laugh, I've > seen an application for Music files that did > *exactly* that). On a case insensitive filesystem > you just request README and you're done. > > Certain vendors who shall remain nameless :-) > created test cases of just this example to > show how much storage on Linux sucks. Not > a happy camper about that - and telling them > to use ZFS on FreeBSD or Solaris just doesn't > feel right :-). Here's the thing to bear in mind: what I did is a straightforward extension of the existing XFS ASCII-based case-insensitive code. If that gets you the desired performance improvement, then my code should extend that to more general usage. If it doesn't, then there are places in XFS that I haven't touched that need modification to have these cases work well. Olaf -- Olaf Weber SGI Phone: +31(0)30-6696796 Veldzigt 2b Fax: +31(0)30-6696799 Technical Lead 3454 PW de Meern Vnet: 955-6796 Storage Software The Netherlands Email: olaf@sgi.com From david@fromorbit.com Fri Sep 26 18:01:16 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id A0168801F for ; Fri, 26 Sep 2014 18:01:16 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 2DD6DAC007 for ; Fri, 26 Sep 2014 16:01:13 -0700 (PDT) X-ASG-Debug-ID: 1411772469-04cb6c50e6306b40001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id zBBNDChkALGE4IJZ for ; Fri, 26 Sep 2014 16:01:10 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AnQlALXvJVR5LHimPGdsb2JhbABfgw6BKoIxhQevDAEBAQEBAQaVWIVrBAICgQYXAQYBAQEBODmEBAEBBDocIxAIAw4KCSUPBSUDBxoTiD2/MhgYhXqJKxRNB4RLBZ0lmVIrL4EHgUMBAQE Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail06.adl2.internode.on.net with ESMTP; 27 Sep 2014 08:31:07 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XXeVe-0003mM-Fh; Sat, 27 Sep 2014 09:01:06 +1000 Date: Sat, 27 Sep 2014 09:01:06 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/3] xfs: remove bitfield based superblock updates Message-ID: <20140926230106.GO4945@dastard> X-ASG-Orig-Subj: Re: [PATCH 2/3] xfs: remove bitfield based superblock updates References: <1411647632-28240-1-git-send-email-david@fromorbit.com> <1411647632-28240-3-git-send-email-david@fromorbit.com> <20140926094550.GB10692@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140926094550.GB10692@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1411772470 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9921 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Sep 26, 2014 at 02:45:50AM -0700, Christoph Hellwig wrote: > This breaks generic/230 for me on an x86-64 VM: > > --- tests/generic/230.out 2013-11-11 10:38:59.000000000 +0000 > +++ /root/xfstests/results//generic/230.out.bad 2014-09-26 09:47:37.000000000 +0000 > @@ -23,11 +23,8 @@ > Write 900k... > Rewrite 1001k... > Write 1000k... > -pwrite64: Disk quota exceeded > Write 4096... > -pwrite64: Disk quota exceeded > Touch 3+4 > Touch 5+6 > touch: cannot touch 'SCRATCH_MNT/file6': Disk quota exceeded > Touch 5 > -touch: cannot touch 'SCRATCH_MNT/file5': Disk quota exceeded Curious, I haven't seen any change in quota behaviour on any test as a result of these changes. What's the config of your VM and xfstests run? Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Fri Sep 26 18:02:57 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 5577D801F for ; Fri, 26 Sep 2014 18:02:57 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 43BD48F8037 for ; Fri, 26 Sep 2014 16:02:54 -0700 (PDT) X-ASG-Debug-ID: 1411772572-04cb6c50e4306bd0001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id D10TWyfyjjbrwWGP for ; Fri, 26 Sep 2014 16:02:52 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AnUlALXvJVR5LHimPGdsb2JhbABfgw6BKoIxhQevDAEBAQEBAQaVWIVrBAICgQYXAQYBAQEBODmEBAEBBCcTHCMQCAMOCgklDwUlAwcaE4g9v0oYhXqKDAeESwEEnSWZUisvgkoBAQE Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail06.adl2.internode.on.net with ESMTP; 27 Sep 2014 08:32:36 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XXeX5-0003mi-WC; Sat, 27 Sep 2014 09:02:36 +1000 Date: Sat, 27 Sep 2014 09:02:35 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/3] xfs: remove bitfield based superblock updates Message-ID: <20140926230235.GP4945@dastard> X-ASG-Orig-Subj: Re: [PATCH 2/3] xfs: remove bitfield based superblock updates References: <1411647632-28240-1-git-send-email-david@fromorbit.com> <1411647632-28240-3-git-send-email-david@fromorbit.com> <20140926100027.GG10692@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140926100027.GG10692@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1411772572 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9921 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Sep 26, 2014 at 03:00:27AM -0700, Christoph Hellwig wrote: > > + to->sb_uquotino = cpu_to_be64(from->sb_uquotino); > > + if (xfs_sb_version_has_pquotino(from)) { > > + to->sb_qflags = be16_to_cpu(from->sb_qflags); > > + to->sb_gquotino = cpu_to_be64(from->sb_gquotino); > > + to->sb_pquotino = cpu_to_be64(from->sb_pquotino); > > + return; > > + } > > sparse complains that the be16_to_cpu should be a cpu_to_be16 for > sb_qflags.. Good catch. Fixed. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Fri Sep 26 18:20:24 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 8BF62802D for ; Fri, 26 Sep 2014 18:20:24 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 28DF5AC00B for ; Fri, 26 Sep 2014 16:20:23 -0700 (PDT) X-ASG-Debug-ID: 1411773618-04bdf003a236a920001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id gkbXxeby00eyBZwf for ; Fri, 26 Sep 2014 16:20:18 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: As4+ADn0JVR5LHimPGdsb2JhbABXCIMOgSqCMYUHrwwBAQEBAQEGlViFawICAQECgQYXAQYBAQEBODmEAwEBBAEnExwjEAgRBwMJJQ8FJQMHGhOINge/IxgYhXqJNlYHhEsFhiiJI41ajECNEisvgQYCHgQCgR4BAQE Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail06.adl2.internode.on.net with ESMTP; 27 Sep 2014 08:50:14 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XXeo9-0003pG-1p; Sat, 27 Sep 2014 09:20:13 +1000 Date: Sat, 27 Sep 2014 09:20:13 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: [PATCH 10/11 v2] xfs: check xfs_buf_read_uncached returns correctly Message-ID: <20140926232012.GQ4945@dastard> X-ASG-Orig-Subj: [PATCH 10/11 v2] xfs: check xfs_buf_read_uncached returns correctly References: <1411648461-29003-1-git-send-email-david@fromorbit.com> <1411648461-29003-11-git-send-email-david@fromorbit.com> <20140926102148.GF22194@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140926102148.GF22194@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1411773618 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9922 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Sep 26, 2014 at 03:21:48AM -0700, Christoph Hellwig wrote: > On Thu, Sep 25, 2014 at 10:34:20PM +1000, Dave Chinner wrote: > > From: Dave Chinner > > > > xfs_buf_read_uncached() has two failure modes. If can either return > > NULL or bp->b_error != 0 depending on the type of failure, and not > > all callers check for both. Fix it up. > > This changelog still seems to be for your previous version and needs > an update now tha xfs_buf_read_uncached always returns the error > directly. Fixed. > > > - return NULL; > > + return ENOMEM; > > Should be -ENOMEM these days, shouldn't it? Yes, good catch. > > release_buf: > > - xfs_buf_relse(bp); > > + if (bp) > > + xfs_buf_relse(bp); > > Shouldn't bp always be valid at this point? It is. Fixed. Updated patch below. Cheers, Dave. -- Dave Chinner david@fromorbit.com xfs: check xfs_buf_read_uncached returns correctly From: Dave Chinner xfs_buf_read_uncached() has two failure modes. If can either return NULL or bp->b_error != 0 depending on the type of failure, and not all callers check for both. Fix it so that xfs_buf_read_uncached() always returns the error status, and the buffer is returned as a function parameter. The buffer will only be returned on success. Signed-off-by: Dave Chinner --- fs/xfs/xfs_buf.c | 18 +++++++++++++---- fs/xfs/xfs_buf.h | 6 +++--- fs/xfs/xfs_fsops.c | 11 +++-------- fs/xfs/xfs_mount.c | 55 +++++++++++++++++++++++++--------------------------- fs/xfs/xfs_rtalloc.c | 30 ++++++++++++---------------- 5 files changed, 58 insertions(+), 62 deletions(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index d1d3fe6..017b6af 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -688,29 +688,39 @@ xfs_buf_readahead_map( * Read an uncached buffer from disk. Allocates and returns a locked * buffer containing the disk contents or nothing. */ -struct xfs_buf * +int xfs_buf_read_uncached( struct xfs_buftarg *target, xfs_daddr_t daddr, size_t numblks, int flags, + struct xfs_buf **bpp, const struct xfs_buf_ops *ops) { struct xfs_buf *bp; + *bpp = NULL; + bp = xfs_buf_get_uncached(target, numblks, flags); if (!bp) - return NULL; + return -ENOMEM; /* set up the buffer for a read IO */ ASSERT(bp->b_map_count == 1); - bp->b_bn = daddr; + bp->b_bn = XFS_BUF_DADDR_NULL; /* always null for uncached buffers */ bp->b_maps[0].bm_bn = daddr; bp->b_flags |= XBF_READ; bp->b_ops = ops; xfs_buf_submit_wait(bp); - return bp; + if (bp->b_error) { + int error = bp->b_error; + xfs_buf_relse(bp); + return error; + } + + *bpp = bp; + return 0; } /* diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index 0acfc30..82002c0 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -269,9 +269,9 @@ int xfs_buf_associate_memory(struct xfs_buf *bp, void *mem, size_t length); struct xfs_buf *xfs_buf_get_uncached(struct xfs_buftarg *target, size_t numblks, int flags); -struct xfs_buf *xfs_buf_read_uncached(struct xfs_buftarg *target, - xfs_daddr_t daddr, size_t numblks, int flags, - const struct xfs_buf_ops *ops); +int xfs_buf_read_uncached(struct xfs_buftarg *target, xfs_daddr_t daddr, + size_t numblks, int flags, struct xfs_buf **bpp, + const struct xfs_buf_ops *ops); void xfs_buf_hold(struct xfs_buf *bp); /* Releasing Buffers */ diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index 126b4b3..ece69c2 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -172,16 +172,11 @@ xfs_growfs_data_private( if ((error = xfs_sb_validate_fsb_count(&mp->m_sb, nb))) return error; dpct = pct - mp->m_sb.sb_imax_pct; - bp = xfs_buf_read_uncached(mp->m_ddev_targp, + error = xfs_buf_read_uncached(mp->m_ddev_targp, XFS_FSB_TO_BB(mp, nb) - XFS_FSS_TO_BB(mp, 1), - XFS_FSS_TO_BB(mp, 1), 0, NULL); - if (!bp) - return -EIO; - if (bp->b_error) { - error = bp->b_error; - xfs_buf_relse(bp); + XFS_FSS_TO_BB(mp, 1), 0, &bp, NULL); + if (error) return error; - } xfs_buf_relse(bp); new = nb; /* use new as a temporary here */ diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index 78a2799..d731035 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -300,21 +300,15 @@ xfs_readsb( * access to the superblock. */ reread: - bp = xfs_buf_read_uncached(mp->m_ddev_targp, XFS_SB_DADDR, - BTOBB(sector_size), 0, buf_ops); - if (!bp) { - if (loud) - xfs_warn(mp, "SB buffer read failed"); - return -EIO; - } - if (bp->b_error) { - error = bp->b_error; + error = xfs_buf_read_uncached(mp->m_ddev_targp, XFS_SB_DADDR, + BTOBB(sector_size), 0, &bp, buf_ops); + if (error) { if (loud) xfs_warn(mp, "SB validate failed with error %d.", error); /* bad CRC means corrupted metadata */ if (error == -EFSBADCRC) error = -EFSCORRUPTED; - goto release_buf; + return error; } /* @@ -544,40 +538,43 @@ xfs_set_inoalignment(xfs_mount_t *mp) * Check that the data (and log if separate) is an ok size. */ STATIC int -xfs_check_sizes(xfs_mount_t *mp) +xfs_check_sizes( + struct xfs_mount *mp) { - xfs_buf_t *bp; + struct xfs_buf *bp; xfs_daddr_t d; + int error; d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks); if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_dblocks) { xfs_warn(mp, "filesystem size mismatch detected"); return -EFBIG; } - bp = xfs_buf_read_uncached(mp->m_ddev_targp, + error = xfs_buf_read_uncached(mp->m_ddev_targp, d - XFS_FSS_TO_BB(mp, 1), - XFS_FSS_TO_BB(mp, 1), 0, NULL); - if (!bp) { + XFS_FSS_TO_BB(mp, 1), 0, &bp, NULL); + if (error) { xfs_warn(mp, "last sector read failed"); - return -EIO; + return error; } xfs_buf_relse(bp); - if (mp->m_logdev_targp != mp->m_ddev_targp) { - d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks); - if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_logblocks) { - xfs_warn(mp, "log size mismatch detected"); - return -EFBIG; - } - bp = xfs_buf_read_uncached(mp->m_logdev_targp, + if (mp->m_logdev_targp == mp->m_ddev_targp) + return 0; + + d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks); + if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_logblocks) { + xfs_warn(mp, "log size mismatch detected"); + return -EFBIG; + } + error = xfs_buf_read_uncached(mp->m_logdev_targp, d - XFS_FSB_TO_BB(mp, 1), - XFS_FSB_TO_BB(mp, 1), 0, NULL); - if (!bp) { - xfs_warn(mp, "log device read failed"); - return -EIO; - } - xfs_buf_relse(bp); + XFS_FSB_TO_BB(mp, 1), 0, &bp, NULL); + if (error) { + xfs_warn(mp, "log device read failed"); + return error; } + xfs_buf_relse(bp); return 0; } diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c index d45aebe..e1175ea 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -921,16 +921,11 @@ xfs_growfs_rt( /* * Read in the last block of the device, make sure it exists. */ - bp = xfs_buf_read_uncached(mp->m_rtdev_targp, + error = xfs_buf_read_uncached(mp->m_rtdev_targp, XFS_FSB_TO_BB(mp, nrblocks - 1), - XFS_FSB_TO_BB(mp, 1), 0, NULL); - if (!bp) - return -EIO; - if (bp->b_error) { - error = bp->b_error; - xfs_buf_relse(bp); + XFS_FSB_TO_BB(mp, 1), 0, &bp, NULL); + if (error) return error; - } xfs_buf_relse(bp); /* @@ -1184,11 +1179,12 @@ xfs_rtallocate_extent( */ int /* error */ xfs_rtmount_init( - xfs_mount_t *mp) /* file system mount structure */ + struct xfs_mount *mp) /* file system mount structure */ { - xfs_buf_t *bp; /* buffer for last block of subvolume */ - xfs_daddr_t d; /* address of last block of subvolume */ - xfs_sb_t *sbp; /* filesystem superblock copy in mount */ + struct xfs_buf *bp; /* buffer for last block of subvolume */ + struct xfs_sb *sbp; /* filesystem superblock copy in mount */ + xfs_daddr_t d; /* address of last block of subvolume */ + int error; sbp = &mp->m_sb; if (sbp->sb_rblocks == 0) @@ -1214,14 +1210,12 @@ xfs_rtmount_init( (unsigned long long) mp->m_sb.sb_rblocks); return -EFBIG; } - bp = xfs_buf_read_uncached(mp->m_rtdev_targp, + error = xfs_buf_read_uncached(mp->m_rtdev_targp, d - XFS_FSB_TO_BB(mp, 1), - XFS_FSB_TO_BB(mp, 1), 0, NULL); - if (!bp || bp->b_error) { + XFS_FSB_TO_BB(mp, 1), 0, &bp, NULL); + if (error) { xfs_warn(mp, "realtime device size check failed"); - if (bp) - xfs_buf_relse(bp); - return -EIO; + return error; } xfs_buf_relse(bp); return 0; From david@fromorbit.com Fri Sep 26 18:22:05 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E852F802E for ; Fri, 26 Sep 2014 18:22:04 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 83E3CAC008 for ; Fri, 26 Sep 2014 16:22:04 -0700 (PDT) X-ASG-Debug-ID: 1411773722-04cb6c50e53073a0001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id fkMQBN9DODy0Rmkp for ; Fri, 26 Sep 2014 16:22:02 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: As8+ADn0JVR5LHimPGdsb2JhbABfgw6BKoIxhQevDAEBAQEBAQaVWIVrAgIBAQKBBhcBBgEBAQE4OYQDAQEBAwE6HCMFCwgDDgcDCSUPBSUDBxoTiDYHvzsYhXqKDAeESwEEj0uNWoxAjRIrL4EIJIEeAQEB Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail06.adl2.internode.on.net with ESMTP; 27 Sep 2014 08:52:02 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XXept-0003pU-63; Sat, 27 Sep 2014 09:22:01 +1000 Date: Sat, 27 Sep 2014 09:22:01 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/5] xfs: refactor xlog_recover_process_data() Message-ID: <20140926232201.GR4945@dastard> X-ASG-Orig-Subj: Re: [PATCH 1/5] xfs: refactor xlog_recover_process_data() References: <1411697952-24741-1-git-send-email-david@fromorbit.com> <1411697952-24741-2-git-send-email-david@fromorbit.com> <20140926114238.GA16576@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140926114238.GA16576@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1411773722 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9922 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Sep 26, 2014 at 04:42:38AM -0700, Christoph Hellwig wrote: > On Fri, Sep 26, 2014 at 12:19:08PM +1000, Dave Chinner wrote: > > From: Dave Chinner > > > > Clean up xlog_recover_process_data() structure in preparation for > > fixing the allocation and freeing context of the transaction being > > recovered. > > > > Signed-off-by: Dave Chinner > > Looks good. The only behavior change I could spot was that we now > validate the length of an ophdr even when starting a new transaction, > which seems sensible. > > Nipick: maybe the lp argument to xlog_recover_process_ophdr should > be called end to make it more obvious? Yes, I had that thought too. I'll change it. > Reviewed-by: Christoph Hellwig Thanks! -- Dave Chinner david@fromorbit.com From david@fromorbit.com Fri Sep 26 18:27:50 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B405229E09 for ; Fri, 26 Sep 2014 18:27:50 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 4F5BEAC004 for ; Fri, 26 Sep 2014 16:27:50 -0700 (PDT) X-ASG-Debug-ID: 1411774067-04cbb073013ec140001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id HpGC862z82gMxK7F for ; Fri, 26 Sep 2014 16:27:48 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtA+AJr1JVR5LHimPGdsb2JhbABfgw6BKoIxhQevDAEBAQEBAQaVWIVrAgIBAQKBBhcBBgEBAQE4OYQDAQEBAwEnExwjBQsIAw4HAwklDwUlAwcaE4g2B78iGBiFeooMB4RLBY9LjVqMQI0SKy+CSgEBAQ Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail06.adl2.internode.on.net with ESMTP; 27 Sep 2014 08:57:46 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XXevR-0003qQ-Ur; Sat, 27 Sep 2014 09:27:45 +1000 Date: Sat, 27 Sep 2014 09:27:45 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/5] xfs: recovery of XLOG_UNMOUNT_TRANS leaks memory Message-ID: <20140926232745.GS4945@dastard> X-ASG-Orig-Subj: Re: [PATCH 2/5] xfs: recovery of XLOG_UNMOUNT_TRANS leaks memory References: <1411697952-24741-1-git-send-email-david@fromorbit.com> <1411697952-24741-3-git-send-email-david@fromorbit.com> <20140926120104.GA10574@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140926120104.GA10574@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1411774067 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9922 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Sep 26, 2014 at 05:01:04AM -0700, Christoph Hellwig wrote: > On Fri, Sep 26, 2014 at 12:19:09PM +1000, Dave Chinner wrote: > > From: Dave Chinner > > > > The XLOG_UNMOUNT_TRANS case skips the transaction, despite the fact > > an unmount record is always in a standalone transaction. Hence > > whenever we come across one of these we need to free the transaction > > structure associated with it as there is no commit record that > > follows it. > > > > Signed-off-by: Dave Chinner > > Looks good, > > Reviewed-by: Christoph Hellwig > > > @@ -3600,8 +3605,10 @@ xlog_recover_ophdr_to_trans( > > * on this opheader is allocate a new recovery container to hold > > * the recovery ops that will follow. > > */ > > - if (ohead->oh_flags & XLOG_START_TRANS) > > + if (ohead->oh_flags & XLOG_START_TRANS) { > > + ASSERT(be32_to_cpu(ohead->oh_len) == 0); > > xlog_recover_new_tid(rhp, tid, be64_to_cpu(rhead->h_lsn)); > > + } > > return NULL; > > .. but I suspect this hunk fits better into the previous patch. Folded it into the first patch. > Also shouldn't we handle any sort of on disk corruption more gracefully? Yes, we should. However, the recovery code is so full of this sort of ASSERT() checking that graceful handling of errors is fairly significant piece of work. It's already on my "cleanup work for a rainy day" list. ;) Cheers, Dave. -- Dave Chinner david@fromorbit.com From gsushma@gmail.com Sat Sep 27 02:32:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE, T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id EAEEC7FC4 for ; Sat, 27 Sep 2014 02:32:25 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id D88DC304039 for ; Sat, 27 Sep 2014 00:32:22 -0700 (PDT) X-ASG-Debug-ID: 1411803141-04cbb073023f7b20001-NocioJ Received: from mail-ie0-f172.google.com (mail-ie0-f172.google.com [209.85.223.172]) by cuda.sgi.com with ESMTP id fDcJeXgmlEfAbzZq (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Sat, 27 Sep 2014 00:32:21 -0700 (PDT) X-Barracuda-Envelope-From: gsushma@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.223.172 X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.172] Received: by mail-ie0-f172.google.com with SMTP id rp18so14999976iec.17 for ; Sat, 27 Sep 2014 00:32:21 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.172] X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.172] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=Xxb0OtVQCfiNhArb/N5ZlDEq4duLF487+crdOIP9s5M=; b=MvwcCnwqa8ylrCY/GzP70rwrhQrxDWOtq7oueWSi3wmYX4KekLM0QZgfCRZfWXjuus X3By2LK8IoCi9xBgsFmI6C7rkKoco1od1z7vHOe6K+cygjZ5ejSo+mvkYuq0D1htukZi 7ohkveDF2KZQ9uLmKGf4GLKxhcXMqtUTMynPnGY2ONLkJekcyz4gTdkUs96ZEBnrcNM1 QRDRA0pI04Mcj5BAjYM8e0e3t2zRQ8dVelfg62i01vtlHJtYa/0cCCLetM4j5wfrEcRk Hw6QxGF/wfcnLpwk8uzpuFu3NbBNQLJvT+fDfKLZ3UWFzbjvvSsmgm5f3aZ5WjypXtbb YI+A== MIME-Version: 1.0 X-Received: by 10.42.216.17 with SMTP id hg17mr32326901icb.69.1411803141221; Sat, 27 Sep 2014 00:32:21 -0700 (PDT) Received: by 10.64.84.38 with HTTP; Sat, 27 Sep 2014 00:32:21 -0700 (PDT) Date: Sat, 27 Sep 2014 00:32:21 -0700 Message-ID: Subject: blktrace and xfs_db block offset mismatch From: Sushma R X-ASG-Orig-Subj: blktrace and xfs_db block offset mismatch To: xfs@oss.sgi.com Content-Type: multipart/alternative; boundary=f46d04089005b9b55c050407087a X-Barracuda-Connect: mail-ie0-f172.google.com[209.85.223.172] X-Barracuda-Start-Time: 1411803141 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9936 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message --f46d04089005b9b55c050407087a Content-Type: text/plain; charset=UTF-8 Hi, I ran blktrace while reading a file on XFS partition and here's it's output. 8,17 3 1 22.065944956 5489 D R 20973896 + 8 [cat] Using xfs_db, I dumped the inode for the same file and it shows the following as its data extents. u.bmx[0] = [startoff,startblock,blockcount,extentflag] 0:[0,2621481,1,0] I understand that blktrace reports in 512-byte sectors while xfs_db in filesystem block size (which is the default 4KB on my setup). Converting blktrace offset to fs block = 2621737 which is close to the data extent startblock (2621481), but still off by 256 fs blocks. Could someone please help understand the reason for this mismatch? Thanks, Sushma --f46d04089005b9b55c050407087a Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi,

I ran blktrace while reading a file= on XFS partition and here's it's output.

= 8,17 =C2=A0 3 =C2=A0 =C2=A0 =C2=A0 =C2=A01 =C2=A0 =C2=A022.065944956 =C2=A0= 5489 =C2=A0D =C2=A0 R 20973896 + 8 [cat]

Using= xfs_db, I dumped the inode for the same file and it shows the following as= its data extents.

u.bmx[0] =3D [startoff,startblo= ck,blockcount,extentflag] 0:[0,2621481,1,0]

I = understand that blktrace reports in 512-byte sectors while xfs_db in filesy= stem block size (which is the default 4KB on my setup).
Convertin= g blktrace offset to fs block =3D=C2=A02621737 which is close to the data e= xtent startblock (2621481), but still off by 256 fs blocks.

<= /div>
Could someone please help understand the reason for this mismatch= ?

Thanks,
Sushma
--f46d04089005b9b55c050407087a-- From bfoster@redhat.com Sat Sep 27 09:39:07 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 4448E7F9A for ; Sat, 27 Sep 2014 09:39:07 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 315E9304039 for ; Sat, 27 Sep 2014 07:39:06 -0700 (PDT) X-ASG-Debug-ID: 1411828742-04cb6c50e7331790001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id drD2J6Aom4VO7tA0 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sat, 27 Sep 2014 07:39:02 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8REd0JE023671 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Sat, 27 Sep 2014 10:39:01 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8REd00M022898; Sat, 27 Sep 2014 10:39:00 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 5EFFF120064; Sat, 27 Sep 2014 10:38:59 -0400 (EDT) Date: Sat, 27 Sep 2014 10:38:59 -0400 From: Brian Foster To: Sushma R Cc: xfs@oss.sgi.com Subject: Re: blktrace and xfs_db block offset mismatch Message-ID: <20140927143859.GA60739@bfoster.bfoster> X-ASG-Orig-Subj: Re: blktrace and xfs_db block offset mismatch References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411828742 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sat, Sep 27, 2014 at 12:32:21AM -0700, Sushma R wrote: > Hi, > > I ran blktrace while reading a file on XFS partition and here's it's output. > > 8,17 3 1 22.065944956 5489 D R 20973896 + 8 [cat] > > Using xfs_db, I dumped the inode for the same file and it shows the > following as its data extents. > > u.bmx[0] = [startoff,startblock,blockcount,extentflag] 0:[0,2621481,1,0] > > I understand that blktrace reports in 512-byte sectors while xfs_db in > filesystem block size (which is the default 4KB on my setup). > Converting blktrace offset to fs block = 2621737 which is close to the data > extent startblock (2621481), but still off by 256 fs blocks. > > Could someone please help understand the reason for this mismatch? > I believe you are comparing a raw read of a device to an internal XFS fsb, the latter of which is encoded to account for the internal structure of XFS (e.g., allocation groups). You might want to take a look at xfs_bmap on the file to see the actual disk blocks. The fsb to daddr conversion depends on the geometry of the fs, but you can get the various values with xfs_db as well. E.g.: convert fsb 2621481 agno # ag number convert fsb 2621481 agbno # relative ag block nr convert fsb 2621481 daddr # disk address Also, I'm not familiar enough with blktrace output off the top of my head so perhaps not an issue, but it's not clear to me whether the output above could have been converted/adjusted to a raw address based on a device partition. You might also want to verify you're looking at the actual file read vs. a directory/inode lookup or block mapping lookup or something else. I see you're running cat, a direct I/O read via dd might ensure you aren't just pulling file data from cache. Brian > Thanks, > Sushma > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From gsushma@gmail.com Sat Sep 27 10:48:49 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE, T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 412CB7F93 for ; Sat, 27 Sep 2014 10:48:49 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id F23608F804C for ; Sat, 27 Sep 2014 08:48:45 -0700 (PDT) X-ASG-Debug-ID: 1411832923-04bdf0039f3bbea0001-NocioJ Received: from mail-ie0-f170.google.com (mail-ie0-f170.google.com [209.85.223.170]) by cuda.sgi.com with ESMTP id htEv86O4y1FMEdBc (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Sat, 27 Sep 2014 08:48:43 -0700 (PDT) X-Barracuda-Envelope-From: gsushma@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.223.170 X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.170] Received: by mail-ie0-f170.google.com with SMTP id x19so14633915ier.29 for ; Sat, 27 Sep 2014 08:48:43 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.170] X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.170] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=ya6ua6l5B0JS9T65tDgMoqWwKRg7pw/5u9sf5RSPFJY=; b=YyI5DZ6WR4ZOs0IPQbc3pIfS2uMRocE+Ti2e1/S/kbztzzVGZfeW4xBWLjNIYKY++V saQbLgTnQ0qe32iUoHWxhpgFxDqJ508vnf8c91F7SpxXUQ7pO5LuL7S8L7zw4x/kAjeb ExUYBCDrPS3akJuE8vC0KLMCFjv6hThtMJF+up4v3cxsQ41ryFaCgnFIH1OfEKVCNFEl EF74SUt+NoZNxZ4SC6D9G0SSTgRDyzJExdoD39cj+tYJkWtAOL2Zmnly06X+93elmLc3 zT1KPDDsC5gaqAz+t3eu5wBIFuZdzvx8KtTbSCJIo/h0RDdsUjE2gWz2AH/tUlepdgJj k4zA== MIME-Version: 1.0 X-Received: by 10.42.180.5 with SMTP id bs5mr34863643icb.70.1411832429751; Sat, 27 Sep 2014 08:40:29 -0700 (PDT) Received: by 10.64.84.38 with HTTP; Sat, 27 Sep 2014 08:40:29 -0700 (PDT) In-Reply-To: <20140927143859.GA60739@bfoster.bfoster> References: <20140927143859.GA60739@bfoster.bfoster> Date: Sat, 27 Sep 2014 08:40:29 -0700 Message-ID: Subject: Re: blktrace and xfs_db block offset mismatch From: Sushma R X-ASG-Orig-Subj: Re: blktrace and xfs_db block offset mismatch To: Brian Foster Cc: xfs@oss.sgi.com Content-Type: multipart/alternative; boundary=90e6ba6e866a7558ba05040ddaf9 X-Barracuda-Connect: mail-ie0-f170.google.com[209.85.223.170] X-Barracuda-Start-Time: 1411832923 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9949 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message --90e6ba6e866a7558ba05040ddaf9 Content-Type: text/plain; charset=UTF-8 Thanks Brian. I'm trying to understand how the internal XFS structures affect this mapping (http://oss.sgi.com/projects/xfs/papers/xfs_filesystem_structure.pdf ) xfs_bmap on the file matches that reported by extents in the file inode using xfs_db. Other conversions under xfs_db xfs_db> convert fsb 2621481 agno 0x0 (0) xfs_db> convert fsb 2621481 agbno 0x280029 (2621481) xfs_db> convert fsb 2621481 daddr 0x1400148 (20971848) I tried dd command with directio option and still blktrace reports the same raw block number as earlier. 8,17 3 1 0.000000000 6999 D R 20973896 + 1 [dd] I'm using xfs_db with the partition i.e. "xfs_db -r /dev/sdb1" However, if I use it on the whole disk "xfs_db -r /dev/sdb", it gives the following error xfs_db: cannot init perag data (117) Does this suggest something? Thanks, Sushma On Sat, Sep 27, 2014 at 7:38 AM, Brian Foster wrote: > On Sat, Sep 27, 2014 at 12:32:21AM -0700, Sushma R wrote: > > Hi, > > > > I ran blktrace while reading a file on XFS partition and here's it's > output. > > > > 8,17 3 1 22.065944956 5489 D R 20973896 + 8 [cat] > > > > Using xfs_db, I dumped the inode for the same file and it shows the > > following as its data extents. > > > > u.bmx[0] = [startoff,startblock,blockcount,extentflag] 0:[0,2621481,1,0] > > > > I understand that blktrace reports in 512-byte sectors while xfs_db in > > filesystem block size (which is the default 4KB on my setup). > > Converting blktrace offset to fs block = 2621737 which is close to the > data > > extent startblock (2621481), but still off by 256 fs blocks. > > > > Could someone please help understand the reason for this mismatch? > > > > I believe you are comparing a raw read of a device to an internal XFS > fsb, the latter of which is encoded to account for the internal > structure of XFS (e.g., allocation groups). You might want to take a > look at xfs_bmap on the file to see the actual disk blocks. > > The fsb to daddr conversion depends on the geometry of the fs, but you > can get the various values with xfs_db as well. E.g.: > > convert fsb 2621481 agno # ag number > convert fsb 2621481 agbno # relative ag block nr > convert fsb 2621481 daddr # disk address > > Also, I'm not familiar enough with blktrace output off the top of my > head so perhaps not an issue, but it's not clear to me whether the > output above could have been converted/adjusted to a raw address based > on a device partition. > > You might also want to verify you're looking at the actual file read vs. > a directory/inode lookup or block mapping lookup or something else. I > see you're running cat, a direct I/O read via dd might ensure you aren't > just pulling file data from cache. > > Brian > > > Thanks, > > Sushma > > > _______________________________________________ > > xfs mailing list > > xfs@oss.sgi.com > > http://oss.sgi.com/mailman/listinfo/xfs > > --90e6ba6e866a7558ba05040ddaf9 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Thanks Brian.

I'm trying to understand how the internal XFS structures= affect this mapping (http://oss.sgi.com/projects/xf= s/papers/xfs_filesystem_structure.pdf)

xfs_bma= p on the file matches that reported by extents in the file inode using xfs_= db.

Other conversions under xfs_db
= xfs_db> convert fsb 2621481 agno
0x0 (0)
xf= s_db> convert fsb 2621481 agbno
0x280029 (2621481)
x= fs_db> convert fsb 2621481 daddr
0x1400148 (20971848)

I tried dd command with directio option and still blktrace re= ports the same raw block number as earlier.
8,17 =C2=A0 3 =C2=A0 =C2=A0 =C2=A0 =C2=A01= =C2=A0 =C2=A0 0.000000000 =C2=A06999 =C2=A0D =C2=A0 R 20973896 + 1 [dd]

I'm using x= fs_db with the partition i.e. "xfs_db -r /dev/sdb1"
However, if I use it on = the whole disk "xfs_db -r /dev/sdb", it gives the following error=
xfs_db: ca= nnot init perag data (117)

Does this suggest something?

Thanks,
Sushma

On Sat, Sep 27, 2014 at 7:38 AM, Brian Foster <bf= oster@redhat.com> wrote:
On Sat, Sep 27, 2014 at 12:32:21AM -0= 700, Sushma R wrote:
> Hi,
>
> I ran blktrace while reading a file on XFS partition and here's it= 's output.
>
> 8,17=C2=A0 =C2=A03=C2=A0 =C2=A0 =C2=A0 =C2=A0 1=C2=A0 =C2=A0 22.065944= 956=C2=A0 5489=C2=A0 D=C2=A0 =C2=A0R 20973896 + 8 [cat]
>
> Using xfs_db, I dumped the inode for the same file and it shows the > following as its data extents.
>
> u.bmx[0] =3D [startoff,startblock,blockcount,extentflag] 0:[0,2621481,= 1,0]
>
> I understand that blktrace reports in 512-byte sectors while xfs_db in=
> filesystem block size (which is the default 4KB on my setup).
> Converting blktrace offset to fs block =3D 2621737 which is close to t= he data
> extent startblock (2621481), but still off by 256 fs blocks.
>
> Could someone please help understand the reason for this mismatch?
>

I believe you are comparing a raw read of a device to an intern= al XFS
fsb, the latter of which is encoded to account for the internal
structure of XFS (e.g., allocation groups). You might want to take a
look at xfs_bmap on the file to see the actual disk blocks.

The fsb to daddr conversion depends on the geometry of the fs, but you
can get the various values with xfs_db as well. E.g.:

convert fsb 2621481 agno=C2=A0 =C2=A0 =C2=A0 =C2=A0 # ag number
convert fsb 2621481 agbno=C2=A0 =C2=A0 =C2=A0 =C2=A0# relative ag block nr<= br> convert fsb 2621481 daddr=C2=A0 =C2=A0 =C2=A0 =C2=A0# disk address

Also, I'm not familiar enough with blktrace output off the top of my head so perhaps not an issue, but it's not clear to me whether the
output above could have been converted/adjusted to a raw address based
on a device partition.

You might also want to verify you're looking at the actual file read vs= .
a directory/inode lookup or block mapping lookup or something else. I
see you're running cat, a direct I/O read via dd might ensure you aren&= #39;t
just pulling file data from cache.

Brian

> Thanks,
> Sushma

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


--90e6ba6e866a7558ba05040ddaf9-- From infokokodeadls@gmail.com Sat Sep 27 11:12:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3F6C37FA3 for ; Sat, 27 Sep 2014 11:12:37 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 2C343304032 for ; Sat, 27 Sep 2014 09:12:34 -0700 (PDT) X-ASG-Debug-ID: 1411834351-04cb6c50e533dea0001-NocioJ Received: from smtp5.clear.net.nz (smtp5.clear.net.nz [203.97.33.68]) by cuda.sgi.com with ESMTP id IeSGc8orXey8ZoJ5 for ; Sat, 27 Sep 2014 09:12:32 -0700 (PDT) X-Barracuda-Envelope-From: infokokodeadls@gmail.com X-Barracuda-Apparent-Source-IP: 203.97.33.68 Received: from mxin2-orange.clear.net.nz (lb2-srcnat.clear.net.nz [203.97.32.237]) by smtp5.clear.net.nz (CLEAR Net Mail) with ESMTP id <0NCK0080VICA6730@smtp5.clear.net.nz> for xfs@oss.sgi.com; Sun, 28 Sep 2014 05:12:31 +1300 (NZDT) Received: from 121-73-72-50.cable.telstraclear.net (HELO rca.net.nz) ([121.73.72.50]) by smtpin2.clear.net.nz with ESMTP; Sun, 28 Sep 2014 05:12:29 +1300 Received: from KAY-PC ([109.144.191.175]) by rca.net.nz with Microsoft SMTPSVC(6.0.3790.4675); Sun, 28 Sep 2014 04:44:59 +1300 Date: Sat, 27 Sep 2014 16:42:54 +0100 From: Mr Felix Koloma Subject: BOOKING======== To: xfs@oss.sgi.com X-ASG-Orig-Subj: BOOKING======== Reply-To: infokokodeadls@gmail.com Message-id: <761214520552719147@121.73.72.50> MIME-version: 1.0 Content-type: multipart/alternative; charset=ISO-8859-1; boundary="mxAib4f33vIpwHqDppCC6j=_6e6LkqHwih0" X-OriginalArrivalTime: 27 Sep 2014 15:45:00.0281 (UTC) FILETIME=[FF11C690:01CFDA69] X-Barracuda-Connect: smtp5.clear.net.nz[203.97.33.68] X-Barracuda-Start-Time: 1411834352 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9950 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message This is a multi-part message in MIME format --mxAib4f33vIpwHqDppCC6j=_6e6LkqHwih0 Content-Type: text/plain ; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable Good Day, Wanting to confirm a space for myself and family at your hotel anytime soon. Arrival Date:10 October 2014 Departure Date: 31 October 2014 One double rooms=20 Two single rooms. Number of Gust : 4 Adult Kindly reply back with the total cost for the own stay at the hotel and let me know if credit card prepayment is weclome. Mr Felix Koloma --mxAib4f33vIpwHqDppCC6j=_6e6LkqHwih0 Content-Type: text/html ; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable Good Day,
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 Mr Felix Koloma --mxAib4f33vIpwHqDppCC6j=_6e6LkqHwih0-- From gsushma@gmail.com Sat Sep 27 12:24:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE, T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 551D17F81 for ; Sat, 27 Sep 2014 12:24:13 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 326158F804C for ; Sat, 27 Sep 2014 10:24:10 -0700 (PDT) X-ASG-Debug-ID: 1411838648-04cbb07303432360001-NocioJ Received: from mail-ie0-f182.google.com (mail-ie0-f182.google.com [209.85.223.182]) by cuda.sgi.com with ESMTP id 6yHROG7qGC1qw2eb (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Sat, 27 Sep 2014 10:24:08 -0700 (PDT) X-Barracuda-Envelope-From: gsushma@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.223.182 X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.182] Received: by mail-ie0-f182.google.com with SMTP id tp5so12189423ieb.27 for ; Sat, 27 Sep 2014 10:24:08 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.182] X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.182] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=igvZpVjlPK0tbxyWzTQBKqsjmYaX1QwDPAW4g9d0oyY=; b=Zo9pZ82S0FyjZndvRp015fo5r++DFQwMAUlXW2B/N8rvqvQPt8KlesUv+HGL3aOujI n2emmiwng1PTwSck2Zr9jc+mFRbh+UE/QAOct4cDgFKSbaFgbCXawA6iR2G75VU4ooIu DDJy8LjQGdzQHecDLnaktw7YVbycw5xdVuS5r1KsDUr+Yg4M+ujOUNLL0+vtXjdRLQ6a 57Z6nmt/ggboKDDWsqoPAytw/3rHsPJG0Gag75Lc0iAwtO8Gs4TgzuDkh3dJgs/AtECi s82kxB3DnI+V8EQKLKpc8dSKhnkGlBh96sU72CqjdZmIVsHv9Ws5d+GrrrAsMI2Zq7Gn mKjQ== MIME-Version: 1.0 X-Received: by 10.50.85.38 with SMTP id e6mr22139465igz.5.1411836805286; Sat, 27 Sep 2014 09:53:25 -0700 (PDT) Received: by 10.64.84.38 with HTTP; Sat, 27 Sep 2014 09:53:25 -0700 (PDT) In-Reply-To: References: <20140927143859.GA60739@bfoster.bfoster> Date: Sat, 27 Sep 2014 09:53:25 -0700 Message-ID: Subject: Re: blktrace and xfs_db block offset mismatch From: Sushma R X-ASG-Orig-Subj: Re: blktrace and xfs_db block offset mismatch To: Brian Foster Cc: xfs@oss.sgi.com Content-Type: multipart/alternative; boundary=089e0149c67a42aae705040edf99 X-Barracuda-Connect: mail-ie0-f182.google.com[209.85.223.182] X-Barracuda-Start-Time: 1411838648 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9952 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message --089e0149c67a42aae705040edf99 Content-Type: text/plain; charset=UTF-8 Please ignore my last comment. It doesn't make sense since file system is mounted on a disk partition. >>Also, I'm not familiar enough with blktrace output off the top of my >>head so perhaps not an issue, but it's not clear to me whether the >>output above could have been converted/adjusted to a raw address based >>on a device partition. Yes, it appears that blktrace adds device partition offset. Thanks!! On Sat, Sep 27, 2014 at 8:40 AM, Sushma R wrote: > Thanks Brian. > > I'm trying to understand how the internal XFS structures affect this > mapping ( > http://oss.sgi.com/projects/xfs/papers/xfs_filesystem_structure.pdf) > > xfs_bmap on the file matches that reported by extents in the file inode > using xfs_db. > > Other conversions under xfs_db > xfs_db> convert fsb 2621481 agno > 0x0 (0) > xfs_db> convert fsb 2621481 agbno > 0x280029 (2621481) > xfs_db> convert fsb 2621481 daddr > 0x1400148 (20971848) > > I tried dd command with directio option and still blktrace reports the > same raw block number as earlier. > 8,17 3 1 0.000000000 6999 D R 20973896 + 1 [dd] > > I'm using xfs_db with the partition i.e. "xfs_db -r /dev/sdb1" > However, if I use it on the whole disk "xfs_db -r /dev/sdb", it gives the > following error > xfs_db: cannot init perag data (117) > > Does this suggest something? > > Thanks, > Sushma > > On Sat, Sep 27, 2014 at 7:38 AM, Brian Foster wrote: > >> On Sat, Sep 27, 2014 at 12:32:21AM -0700, Sushma R wrote: >> > Hi, >> > >> > I ran blktrace while reading a file on XFS partition and here's it's >> output. >> > >> > 8,17 3 1 22.065944956 5489 D R 20973896 + 8 [cat] >> > >> > Using xfs_db, I dumped the inode for the same file and it shows the >> > following as its data extents. >> > >> > u.bmx[0] = [startoff,startblock,blockcount,extentflag] 0:[0,2621481,1,0] >> > >> > I understand that blktrace reports in 512-byte sectors while xfs_db in >> > filesystem block size (which is the default 4KB on my setup). >> > Converting blktrace offset to fs block = 2621737 which is close to the >> data >> > extent startblock (2621481), but still off by 256 fs blocks. >> > >> > Could someone please help understand the reason for this mismatch? >> > >> >> I believe you are comparing a raw read of a device to an internal XFS >> fsb, the latter of which is encoded to account for the internal >> structure of XFS (e.g., allocation groups). You might want to take a >> look at xfs_bmap on the file to see the actual disk blocks. >> >> The fsb to daddr conversion depends on the geometry of the fs, but you >> can get the various values with xfs_db as well. E.g.: >> >> convert fsb 2621481 agno # ag number >> convert fsb 2621481 agbno # relative ag block nr >> convert fsb 2621481 daddr # disk address >> >> Also, I'm not familiar enough with blktrace output off the top of my >> head so perhaps not an issue, but it's not clear to me whether the >> output above could have been converted/adjusted to a raw address based >> on a device partition. >> >> You might also want to verify you're looking at the actual file read vs. >> a directory/inode lookup or block mapping lookup or something else. I >> see you're running cat, a direct I/O read via dd might ensure you aren't >> just pulling file data from cache. >> >> Brian >> >> > Thanks, >> > Sushma >> >> > _______________________________________________ >> > xfs mailing list >> > xfs@oss.sgi.com >> > http://oss.sgi.com/mailman/listinfo/xfs >> >> > --089e0149c67a42aae705040edf99 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Please ignore my last comment. It doesn't make sense s= ince file system is mounted on a disk partition.

>= ;>Also, I'm not familiar enough with blktrace output off the top of = my
>>head so perhaps not an issue, but it's not clear= to me whether the
>>output above could have been convert= ed/adjusted to a raw address based
>>on a device partitio= n.

Yes, it appears that blktrace adds device partiti= on offset.


=
On Sat, Sep 27, 2014 at 8:40 AM, Sushma R <gsus= hma@gmail.com> wrote:
Thanks Brian.

I'm trying to understand how the internal XF= S structures affect this mapping (http://oss.sgi.com= /projects/xfs/papers/xfs_filesystem_structure.pdf)

=
xfs_bmap on the file matches that reported by extents in the file inod= e using xfs_db.

Other conversions under xfs_db
xfs_db> convert fsb 2621481 agno
0x0 (0)<= /div>
xfs_db> convert fsb 2621481 agbno
0x280029 (2621481)=
xfs_db> convert fsb 2621481 daddr
0x1400148 (209718= 48)

I tried dd command with directio option and still= blktrace reports the same raw block number as earlier.
8,17 =C2=A0 3 =C2=A0 =C2=A0 = =C2=A0 =C2=A01 =C2=A0 =C2=A0 0.000000000 =C2=A06999 =C2=A0D =C2=A0 R 209738= 96 + 1 [dd]

I= 'm using xfs_db with the partition i.e. "xfs_db -r /dev/sdb1"=
However, i= f I use it on the whole disk "xfs_db -r /dev/sdb", it gives the f= ollowing error
xfs_db: cannot init perag data (117)

Does this suggest something?

Thanks,
Sushma

On Sat, Sep 2= 7, 2014 at 7:38 AM, Brian Foster <bfoster@redhat.com> wrote= :
On Sat, Sep 27, 2014 at 12:32:21AM -0700, Sushma R wrote:
> Hi,
>
> I ran blktrace while reading a file on XFS partition and here's it= 's output.
>
> 8,17=C2=A0 =C2=A03=C2=A0 =C2=A0 =C2=A0 =C2=A0 1=C2=A0 =C2=A0 22.065944= 956=C2=A0 5489=C2=A0 D=C2=A0 =C2=A0R 20973896 + 8 [cat]
>
> Using xfs_db, I dumped the inode for the same file and it shows the > following as its data extents.
>
> u.bmx[0] =3D [startoff,startblock,blockcount,extentflag] 0:[0,2621481,= 1,0]
>
> I understand that blktrace reports in 512-byte sectors while xfs_db in=
> filesystem block size (which is the default 4KB on my setup).
> Converting blktrace offset to fs block =3D 2621737 which is close to t= he data
> extent startblock (2621481), but still off by 256 fs blocks.
>
> Could someone please help understand the reason for this mismatch?
>

I believe you are comparing a raw read of a device to an intern= al XFS
fsb, the latter of which is encoded to account for the internal
structure of XFS (e.g., allocation groups). You might want to take a
look at xfs_bmap on the file to see the actual disk blocks.

The fsb to daddr conversion depends on the geometry of the fs, but you
can get the various values with xfs_db as well. E.g.:

convert fsb 2621481 agno=C2=A0 =C2=A0 =C2=A0 =C2=A0 # ag number
convert fsb 2621481 agbno=C2=A0 =C2=A0 =C2=A0 =C2=A0# relative ag block nr<= br> convert fsb 2621481 daddr=C2=A0 =C2=A0 =C2=A0 =C2=A0# disk address

Also, I'm not familiar enough with blktrace output off the top of my head so perhaps not an issue, but it's not clear to me whether the
output above could have been converted/adjusted to a raw address based
on a device partition.

You might also want to verify you're looking at the actual file read vs= .
a directory/inode lookup or block mapping lookup or something else. I
see you're running cat, a direct I/O read via dd might ensure you aren&= #39;t
just pulling file data from cache.

Brian

> Thanks,
> Sushma

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



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It was generated because a ref change was pushed to the repository containing the project "XFS development tree". The branch, xfs-trans-recover-cleanup has been created at b818cca1976d1a01754033ac08724e05d07cce8f (commit) - Log ----------------------------------------------------------------- commit b818cca1976d1a01754033ac08724e05d07cce8f Author: Dave Chinner Date: Mon Sep 29 09:45:54 2014 +1000 xfs: refactor recovery transaction start handling Rework the transaction lookup and allocation code in xlog_recovery_process_ophdr() to fold two related call-once helper functions into a single helper. Then fold in all the XLOG_START_TRANS logic to that helper to clean up the remaining logic in xlog_recovery_process_ophdr(). Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit 76560669868d3b4d650d91d9bf467a8d81171766 Author: Dave Chinner Date: Mon Sep 29 09:45:42 2014 +1000 xfs: reorganise transaction recovery item code The code for managing transactions anf the items for recovery is spread across 3 different locations in the file. Move them all together so that it is easy to read the code without needing to jump long distances in the file. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit 88b863db97a18a04c90ebd57d84e1b7863114dcb Author: Dave Chinner Date: Mon Sep 29 09:45:32 2014 +1000 xfs: fix double free in xlog_recover_commit_trans When an error occurs during buffer submission in xlog_recover_commit_trans(), we free the trans structure twice. Fix it by only freeing the structure in the caller regardless of the success or failure of the function. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit e9131e50f9d0a632e3011d73f283ba69be0cc682 Author: Dave Chinner Date: Mon Sep 29 09:45:18 2014 +1000 xfs: recovery of XLOG_UNMOUNT_TRANS leaks memory The XLOG_UNMOUNT_TRANS case skips the transaction, despite the fact an unmount record is always in a standalone transaction. Hence whenever we come across one of these we need to free the transaction structure associated with it as there is no commit record that follows it. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit eeb1168810d8a140f6834f8c4975f7bb3277d790 Author: Dave Chinner Date: Mon Sep 29 09:45:03 2014 +1000 xfs: refactor xlog_recover_process_data() Clean up xlog_recover_process_data() structure in preparation for fixing the allocation and freeing context of the transaction being recovered. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner ----------------------------------------------------------------------- hooks/post-receive -- XFS development tree From dgc@oss.sgi.com Sun Sep 28 19:03:14 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=NO_RELAYS autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: by oss.sgi.com (Postfix, from userid 10266) id 2D6447F92; Sun, 28 Sep 2014 19:03:14 -0500 (CDT) From: xfs@oss.sgi.com To: xfs@oss.sgi.com Subject: [XFS updates] XFS development tree branch, for-next, updated. xfs-for-linus-3.17-rc3-33-g2f43bbd X-Git-Refname: refs/heads/for-next X-Git-Reftype: branch X-Git-Oldrev: 33044dc408e6e6bb7f270c0a2e12598ef5592987 X-Git-Newrev: 2f43bbd96e43d0b85803f5092be94bbb92d8eac9 Message-Id: <20140929000314.2D6447F92@oss.sgi.com> Date: Sun, 28 Sep 2014 19:03:13 -0500 (CDT) 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-next has been updated 2f43bbd Merge branch 'xfs-trans-recover-cleanup' into for-next b818cca xfs: refactor recovery transaction start handling 7656066 xfs: reorganise transaction recovery item code 88b863d xfs: fix double free in xlog_recover_commit_trans e9131e5 xfs: recovery of XLOG_UNMOUNT_TRANS leaks memory eeb1168 xfs: refactor xlog_recover_process_data() from 33044dc408e6e6bb7f270c0a2e12598ef5592987 (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 2f43bbd96e43d0b85803f5092be94bbb92d8eac9 Merge: 33044dc b818cca Author: Dave Chinner Date: Mon Sep 29 10:00:24 2014 +1000 Merge branch 'xfs-trans-recover-cleanup' into for-next ----------------------------------------------------------------------- Summary of changes: fs/xfs/xfs_log_recover.c | 564 ++++++++++++++++++++++++++--------------------- 1 file changed, 308 insertions(+), 256 deletions(-) hooks/post-receive -- XFS development tree From dgc@oss.sgi.com Sun Sep 28 20:01:15 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=NO_RELAYS autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: by oss.sgi.com (Postfix, from userid 10266) id 084977FA7; Sun, 28 Sep 2014 20:01:15 -0500 (CDT) From: xfs@oss.sgi.com To: xfs@oss.sgi.com Subject: [XFS updates] XFS development tree branch, xfs-sparse-fixes, created. v3.16-11811-gb972d07 X-Git-Refname: refs/heads/xfs-sparse-fixes X-Git-Reftype: branch X-Git-Oldrev: 0000000000000000000000000000000000000000 X-Git-Newrev: b972d0797180d8414351d9dc8ff65071c692d058 Message-Id: <20140929010115.084977FA7@oss.sgi.com> Date: Sun, 28 Sep 2014 20:01:14 -0500 (CDT) 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, xfs-sparse-fixes has been created at b972d0797180d8414351d9dc8ff65071c692d058 (commit) - Log ----------------------------------------------------------------- commit b972d0797180d8414351d9dc8ff65071c692d058 Author: Dave Chinner Date: Mon Sep 29 10:46:22 2014 +1000 xfs: annotate user variables passed as void Some argument callbacks can contain user buffers, and sparse warns about passing them as void pointers. Cast appropriately to remove the sparse warnings. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit e3aed1a08190c038c4ea41b73ea6f07bc0e3290c Author: Dave Chinner Date: Mon Sep 29 10:46:08 2014 +1000 xfs: xfs_kset should be static As it is accessed through the struct xfs_mount and can be set up entirely from fs/xfs/xfs_super.c Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit bf1ed3833078e3bb0ba8cd03468090b9359d0912 Author: Dave Chinner Date: Mon Sep 29 10:43:40 2014 +1000 xfs: xfs_qm_dquot_isolate needs locking annotations for sparse To remove noise from the build. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit e68ed77521f695d165cbae070f6dda8a4778438f Author: Dave Chinner Date: Mon Sep 29 10:43:15 2014 +1000 xfs: fix use of agi_newino in finobt lookup Sparse warns that we are passing the big-endian valueo f agi_newino to the initial btree lookup function when trying to find a new inode. This is wrong - we need to pass the host order value, not the disk order value. This will adversely affect the next inode allocated, but given that the free inode btree is usually much smaller than the allocated inode btree it is much less likely to be a performance issue if we start the search in the wrong place. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner ----------------------------------------------------------------------- hooks/post-receive -- XFS development tree From dgc@oss.sgi.com Sun Sep 28 20:01:35 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=NO_RELAYS autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: by oss.sgi.com (Postfix, from userid 10266) id 7497C7FB0; Sun, 28 Sep 2014 20:01:35 -0500 (CDT) From: xfs@oss.sgi.com To: xfs@oss.sgi.com Subject: [XFS updates] XFS development tree branch, for-next, updated. xfs-for-linus-3.17-rc3-38-gbd438f8 X-Git-Refname: refs/heads/for-next X-Git-Reftype: branch X-Git-Oldrev: 2f43bbd96e43d0b85803f5092be94bbb92d8eac9 X-Git-Newrev: bd438f825f7badafe56d117ed906488c8541f95f Message-Id: <20140929010135.7497C7FB0@oss.sgi.com> Date: Sun, 28 Sep 2014 20:01:35 -0500 (CDT) 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-next has been updated bd438f8 Merge branch 'xfs-sparse-fixes' into for-next b972d07 xfs: annotate user variables passed as void e3aed1a xfs: xfs_kset should be static bf1ed38 xfs: xfs_qm_dquot_isolate needs locking annotations for sparse e68ed77 xfs: fix use of agi_newino in finobt lookup from 2f43bbd96e43d0b85803f5092be94bbb92d8eac9 (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 bd438f825f7badafe56d117ed906488c8541f95f Merge: 2f43bbd b972d07 Author: Dave Chinner Date: Mon Sep 29 10:52:44 2014 +1000 Merge branch 'xfs-sparse-fixes' into for-next ----------------------------------------------------------------------- Summary of changes: fs/xfs/libxfs/xfs_ialloc.c | 5 ++--- fs/xfs/xfs_ioctl.c | 8 ++++---- fs/xfs/xfs_mount.c | 3 --- fs/xfs/xfs_qm.c | 1 + fs/xfs/xfs_super.c | 3 ++- 5 files changed, 9 insertions(+), 11 deletions(-) hooks/post-receive -- XFS development tree From dave@fromorbit.com Sun Sep 28 20:41:47 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 88B427FBA for ; Sun, 28 Sep 2014 20:41:45 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 77259304032 for ; Sun, 28 Sep 2014 18:41:42 -0700 (PDT) X-ASG-Debug-ID: 1411954896-04cb6c50e54981c0001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id nECE9PsMhVGk9Fgg for ; Sun, 28 Sep 2014 18:41:37 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtIWAMW3KFR5LHimPGdsb2JhbABggw6IYq5+BpxJFwEGAQEBATg5hDEvOxhqAwctiD2aKqUMhhKJKIEBhDUFqWiLByCBaysvgQaBRAEBAQ Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 29 Sep 2014 11:11:27 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XYPxu-0000rQ-3F for xfs@oss.sgi.com; Mon, 29 Sep 2014 11:41:26 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XYPxu-0003BO-25 for xfs@oss.sgi.com; Mon, 29 Sep 2014 11:41:26 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH] xfs: compat_xfs_bstat does not have forkoff Date: Mon, 29 Sep 2014 11:41:26 +1000 X-ASG-Orig-Subj: [PATCH] xfs: compat_xfs_bstat does not have forkoff Message-Id: <1411954886-12200-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411954896 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10003 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner struct compat_xfs_bstat is missing the di_forkoff field and so does not fully translate the structure correctly. Fix it. Signed-off-by: Dave Chinner --- fs/xfs/xfs_ioctl32.c | 2 ++ fs/xfs/xfs_ioctl32.h | 3 ++- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/fs/xfs/xfs_ioctl32.c b/fs/xfs/xfs_ioctl32.c index a554646..94ce027 100644 --- a/fs/xfs/xfs_ioctl32.c +++ b/fs/xfs/xfs_ioctl32.c @@ -160,6 +160,7 @@ xfs_ioctl32_bstat_copyin( get_user(bstat->bs_gen, &bstat32->bs_gen) || get_user(bstat->bs_projid_lo, &bstat32->bs_projid_lo) || get_user(bstat->bs_projid_hi, &bstat32->bs_projid_hi) || + get_user(bstat->bs_forkoff, &bstat32->bs_forkoff) || get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) || get_user(bstat->bs_dmstate, &bstat32->bs_dmstate) || get_user(bstat->bs_aextents, &bstat32->bs_aextents)) @@ -214,6 +215,7 @@ xfs_bulkstat_one_fmt_compat( put_user(buffer->bs_gen, &p32->bs_gen) || put_user(buffer->bs_projid, &p32->bs_projid) || put_user(buffer->bs_projid_hi, &p32->bs_projid_hi) || + put_user(buffer->bs_forkoff, &p32->bs_forkoff) || put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) || put_user(buffer->bs_dmstate, &p32->bs_dmstate) || put_user(buffer->bs_aextents, &p32->bs_aextents)) diff --git a/fs/xfs/xfs_ioctl32.h b/fs/xfs/xfs_ioctl32.h index 80f4060..b1bb454 100644 --- a/fs/xfs/xfs_ioctl32.h +++ b/fs/xfs/xfs_ioctl32.h @@ -67,8 +67,9 @@ typedef struct compat_xfs_bstat { __u32 bs_gen; /* generation count */ __u16 bs_projid_lo; /* lower part of project id */ #define bs_projid bs_projid_lo /* (previously just bs_projid) */ + __u16 bs_forkoff; /* inode fork offset in bytes */ __u16 bs_projid_hi; /* high part of project id */ - unsigned char bs_pad[12]; /* pad space, unused */ + unsigned char bs_pad[10]; /* pad space, unused */ __u32 bs_dmevmask; /* DMIG event mask */ __u16 bs_dmstate; /* DMIG state info */ __u16 bs_aextents; /* attribute number of extents */ -- 2.0.0 From dave@fromorbit.com Sun Sep 28 20:42:05 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id C6A107F51 for ; Sun, 28 Sep 2014 20:42:05 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 72373AC007 for ; Sun, 28 Sep 2014 18:42:05 -0700 (PDT) X-ASG-Debug-ID: 1411954923-04bdf003a251e450001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id 0pA2IqNhnfxHfo1j for ; Sun, 28 Sep 2014 18:42:03 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtYWAMW3KFR5LHimPGdsb2JhbABggw6IYq5+BptJgQAXAQYBAQEBODmEMS87GGoDBy2IPZoqpQyGEooBhF0FhiiLFaU9Ky+CSgEBAQ Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 29 Sep 2014 11:11:52 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XYPyJ-0000rX-MG for xfs@oss.sgi.com; Mon, 29 Sep 2014 11:41:51 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XYPyJ-0003Ce-L0 for xfs@oss.sgi.com; Mon, 29 Sep 2014 11:41:51 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH] xfs: kill time.h Date: Mon, 29 Sep 2014 11:41:51 +1000 X-ASG-Orig-Subj: [PATCH] xfs: kill time.h Message-Id: <1411954911-12278-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411954923 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10003 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner The typedef for timespecs and nanotime() are completely unnecessary, and delay() can be moved to fs/xfs/linux.h, which means this file can go away. Signed-off-by: Dave Chinner --- fs/xfs/kmem.c | 1 - fs/xfs/time.h | 36 ------------------------------------ fs/xfs/xfs_inode.c | 4 ++-- fs/xfs/xfs_linux.h | 6 +++++- fs/xfs/xfs_trans_inode.c | 2 +- 5 files changed, 8 insertions(+), 41 deletions(-) delete mode 100644 fs/xfs/time.h diff --git a/fs/xfs/kmem.c b/fs/xfs/kmem.c index 844e288..53e95b2 100644 --- a/fs/xfs/kmem.c +++ b/fs/xfs/kmem.c @@ -21,7 +21,6 @@ #include #include #include -#include "time.h" #include "kmem.h" #include "xfs_message.h" diff --git a/fs/xfs/time.h b/fs/xfs/time.h deleted file mode 100644 index 387e695..0000000 --- a/fs/xfs/time.h +++ /dev/null @@ -1,36 +0,0 @@ -/* - * Copyright (c) 2000-2003,2005 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_SUPPORT_TIME_H__ -#define __XFS_SUPPORT_TIME_H__ - -#include -#include - -typedef struct timespec timespec_t; - -static inline void delay(long ticks) -{ - schedule_timeout_uninterruptible(ticks); -} - -static inline void nanotime(struct timespec *tvp) -{ - *tvp = CURRENT_TIME; -} - -#endif /* __XFS_SUPPORT_TIME_H__ */ diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index e5bbc1f..f07b443 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -654,7 +654,7 @@ xfs_ialloc( xfs_inode_t *ip; uint flags; int error; - timespec_t tv; + struct timespec tv; /* * Call the space management code to pick @@ -720,7 +720,7 @@ xfs_ialloc( ip->i_d.di_nextents = 0; ASSERT(ip->i_d.di_nblocks == 0); - nanotime(&tv); + tv = current_fs_time(mp->m_super); ip->i_d.di_mtime.t_sec = (__int32_t)tv.tv_sec; ip->i_d.di_mtime.t_nsec = (__int32_t)tv.tv_nsec; ip->i_d.di_atime = ip->i_d.di_mtime; diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h index d10dc8f..6a51619 100644 --- a/fs/xfs/xfs_linux.h +++ b/fs/xfs/xfs_linux.h @@ -56,7 +56,6 @@ typedef __uint64_t __psunsigned_t; #include "kmem.h" #include "mrlock.h" -#include "time.h" #include "uuid.h" #include @@ -179,6 +178,11 @@ typedef __uint64_t __psunsigned_t; #define MAX(a,b) (max(a,b)) #define howmany(x, y) (((x)+((y)-1))/(y)) +static inline void delay(long ticks) +{ + schedule_timeout_uninterruptible(ticks); +} + /* * XFS wrapper structure for sysfs support. It depends on external data * structures and is embedded in various internal data structures to implement diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c index 50c3f56..cdb4d86 100644 --- a/fs/xfs/xfs_trans_inode.c +++ b/fs/xfs/xfs_trans_inode.c @@ -70,7 +70,7 @@ xfs_trans_ichgtime( int flags) { struct inode *inode = VFS_I(ip); - timespec_t tv; + struct timespec tv; ASSERT(tp); ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); -- 2.0.0 From david@fromorbit.com Sun Sep 28 22:32:54 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id CC99A7FCB for ; Sun, 28 Sep 2014 22:32:54 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id BB23E304032 for ; Sun, 28 Sep 2014 20:32:51 -0700 (PDT) X-ASG-Debug-ID: 1411961566-04cbb0730258eac0001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id urg40SXqCY4iEwY8 for ; Sun, 28 Sep 2014 20:32:46 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Aus8AI7RKFR5LHimPGdsb2JhbABggw6IYq8VBpVYhWsCAgEBAoEDFwEGAQEBATg5hAQBAQQ6HCMQCAMOCgklDwUlAwcaE4g9vycYGIV6igwHhEsFnSeXfoFVKy+CSgEBAQ Received: from ppp121-44-120-166.lns20.syd6.internode.on.net (HELO dastard) ([121.44.120.166]) by ipmail04.adl6.internode.on.net with ESMTP; 29 Sep 2014 13:02:45 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XYRhc-00014I-8D; Mon, 29 Sep 2014 13:32:44 +1000 Date: Mon, 29 Sep 2014 13:32:44 +1000 From: Dave Chinner To: Brian Foster Cc: fstests@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [PATCH] xfs/053: test for stale data exposure via falloc/writeback interaction Message-ID: <20140929033244.GL4758@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs/053: test for stale data exposure via falloc/writeback interaction References: <1411756349-4537-1-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411756349-4537-1-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1411961566 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10007 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Sep 26, 2014 at 02:32:29PM -0400, Brian Foster wrote: > XFS buffered I/O writeback has a subtle race condition that leads to > stale data exposure if the filesystem happens to crash after delayed > allocation blocks are converted on disk and before data is written back > to said blocks. > > Use file allocation commands to attempt to reproduce a related, but > slightly different variant of this problem. The associated falloc > commands can lead to partial writeback that converts an extent larger > than the range affected by falloc. If the filesystem crashes after the > extent conversion but before all other cached data is written to the > extent, stale data can be exposed. > > Signed-off-by: Brian Foster > --- > > This fell out of a combination of a conversation with Dave about XFS > writeback and buffer/cache coherency and some hacking I'm doing on the > XFS zero range implementation. Note that fpunch currently fails the > test. Also, this test is XFS specific primarily due to the use of > godown. ..... > +_crashtest() > +{ > + cmd=$1 > + img=$SCRATCH_MNT/$seq.img > + mnt=$SCRATCH_MNT/$seq.mnt > + file=$mnt/file > + > + # Create an fs on a small, initialized image. The pattern is written to > + # the image to detect stale data exposure. > + $XFS_IO_PROG -f -c "truncate 0" -c "pwrite 0 25M" $img \ > + >> $seqres.full 2>&1 > + $MKFS_XFS_PROG $MKFS_OPTIONS $img >> $seqres.full 2>&1 > + > + mkdir -p $mnt > + mount $img $mnt > + > + echo $cmd > + > + # write, run the test command and shutdown the fs > + $XFS_IO_PROG -f -c "pwrite -S 1 0 64k" -c "$cmd 60k 4k" $file | \ > + _filter_xfs_io So at this point the file is correctly 64k in size in memory. > + ./src/godown -f $mnt And here you tell godown to flush the log, so if there's a transaction in the that sets the inode size to 64k. > + umount $mnt > + mount $img $mnt Then log recovery will set the file size to 64k, and: > + > + # we generally expect a zero-sized file (this should be silent) > + hexdump $file This comment is not actually correct. I'm actually seeing 64k length files after recovery in 2 of 3 cases being tested, so I don't think this is a correct observation. Some clarification of what is actually being tested is needed here. Cheers, Dave. -- Dave Chinner david@fromorbit.com From boycha@tannoy.com Mon Sep 29 00:01:42 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=2.2 required=5.0 tests=HTML_MESSAGE,MIME_HTML_ONLY autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id BFCC07FD3 for ; Mon, 29 Sep 2014 00:01:42 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 9F07F8F8040 for ; Sun, 28 Sep 2014 22:01:39 -0700 (PDT) X-ASG-Debug-ID: 1411966896-04cbb07301599c00001-NocioJ Received: from mx.zircon.net.ua (mx.zircon.net.ua [82.207.71.162]) by cuda.sgi.com with ESMTP id 2xjH5ECH7uSIigQw for ; Sun, 28 Sep 2014 22:01:37 -0700 (PDT) X-Barracuda-Envelope-From: boycha@tannoy.com X-Barracuda-Apparent-Source-IP: 82.207.71.162 Received: 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AAAAAAAAAAAAAAAAAAAAAAA= ------=_NextPart_000_14B7_01CFDBB3.330888E0-- From BATV+cfd817f7015a74b63a27+4054+infradead.org+hch@bombadil.srs.infradead.org Mon Sep 29 05:40:09 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 6084D29DFB for ; Mon, 29 Sep 2014 05:40:09 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 3D2A0304039 for ; Mon, 29 Sep 2014 03:40:09 -0700 (PDT) X-ASG-Debug-ID: 1411987207-04cbb073015c53e0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id Ai2SeOu4w9ht0DDG (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 29 Sep 2014 03:40:07 -0700 (PDT) X-Barracuda-Envelope-From: BATV+cfd817f7015a74b63a27+4054+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XYYND-00020Z-0b; Mon, 29 Sep 2014 10:40:07 +0000 Date: Mon, 29 Sep 2014 03:40:06 -0700 From: Christoph Hellwig To: Dave Chinner Cc: Christoph Hellwig , xfs@oss.sgi.com Subject: Re: [PATCH 10/11 v2] xfs: check xfs_buf_read_uncached returns correctly Message-ID: <20140929104006.GB13582@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 10/11 v2] xfs: check xfs_buf_read_uncached returns correctly References: <1411648461-29003-1-git-send-email-david@fromorbit.com> <1411648461-29003-11-git-send-email-david@fromorbit.com> <20140926102148.GF22194@infradead.org> <20140926232012.GQ4945@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140926232012.GQ4945@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411987207 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10018 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS > Updated patch below. Looks good, Reviewed-by: Christoph Hellwig From BATV+cfd817f7015a74b63a27+4054+infradead.org+hch@bombadil.srs.infradead.org Mon Sep 29 05:43:23 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 14B8529DFF for ; Mon, 29 Sep 2014 05:43:23 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id E8F738F8035 for ; Mon, 29 Sep 2014 03:43:19 -0700 (PDT) X-ASG-Debug-ID: 1411987398-04cbb073015c58f0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id fTljjRUdGbJPTCNu (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 29 Sep 2014 03:43:18 -0700 (PDT) X-Barracuda-Envelope-From: BATV+cfd817f7015a74b63a27+4054+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XYYQI-0002ya-E5; Mon, 29 Sep 2014 10:43:18 +0000 Date: Mon, 29 Sep 2014 03:43:18 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH] xfs: compat_xfs_bstat does not have forkoff Message-ID: <20140929104318.GA10847@infradead.org> X-ASG-Orig-Subj: Re: [PATCH] xfs: compat_xfs_bstat does not have forkoff References: <1411954886-12200-1-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411954886-12200-1-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411987398 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10018 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Mon, Sep 29, 2014 at 11:41:26AM +1000, Dave Chinner wrote: > From: Dave Chinner > > struct compat_xfs_bstat is missing the di_forkoff field and so does > not fully translate the structure correctly. Fix it. > > Signed-off-by: Dave Chinner > --- > fs/xfs/xfs_ioctl32.c | 2 ++ > fs/xfs/xfs_ioctl32.h | 3 ++- > 2 files changed, 4 insertions(+), 1 deletion(-) Looks good, Reviewed-by: Christoph Hellwig Any chance to get an xfstests test that verifies the forkoff value? Even if it would only reproduce this bug when running 32-bit userspace on a 64-bit kernel it would be useful I think. From BATV+cfd817f7015a74b63a27+4054+infradead.org+hch@bombadil.srs.infradead.org Mon Sep 29 05:44:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C5D1B29DFF for ; Mon, 29 Sep 2014 05:44:45 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id A33208F8035 for ; Mon, 29 Sep 2014 03:44:45 -0700 (PDT) X-ASG-Debug-ID: 1411987484-04cb6c50e44daa60001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id 57zBV85N6cpMkLeR (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 29 Sep 2014 03:44:44 -0700 (PDT) X-Barracuda-Envelope-From: BATV+cfd817f7015a74b63a27+4054+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XYYRf-0003jV-Tj; Mon, 29 Sep 2014 10:44:43 +0000 Date: Mon, 29 Sep 2014 03:44:43 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH] xfs: kill time.h Message-ID: <20140929104443.GB10847@infradead.org> X-ASG-Orig-Subj: Re: [PATCH] xfs: kill time.h References: <1411954911-12278-1-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411954911-12278-1-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1411987484 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10018 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Mon, Sep 29, 2014 at 11:41:51AM +1000, Dave Chinner wrote: > From: Dave Chinner > > The typedef for timespecs and nanotime() are completely unnecessary, > and delay() can be moved to fs/xfs/linux.h, which means this file > can go away. Looks good, but shouldn't we just kill delay(), too? There's just 11 callers, and none of them in libxfs. Reviewed-by: Christoph Hellwig From BATV+cfd817f7015a74b63a27+4054+infradead.org+hch@bombadil.srs.infradead.org Mon Sep 29 06:06:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BAB3A7FD7 for ; Mon, 29 Sep 2014 06:06:13 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 65FC9AC005 for ; Mon, 29 Sep 2014 04:06:10 -0700 (PDT) X-ASG-Debug-ID: 1411988768-04bdf003a059f4e0001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id zagbm18lDnc2wL15 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO); Mon, 29 Sep 2014 04:06:08 -0700 (PDT) X-Barracuda-Envelope-From: BATV+cfd817f7015a74b63a27+4054+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XYYmO-0006fB-DB; Mon, 29 Sep 2014 11:06:08 +0000 Date: Mon, 29 Sep 2014 04:06:08 -0700 From: Christoph Hellwig To: Olaf Weber Cc: Jeremy Allison , Christoph Hellwig , Dave Chinner , Ben Myers , linux-fsdevel@vger.kernel.org, tinguely@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS Message-ID: <20140929110608.GB17258@infradead.org> X-ASG-Orig-Subj: Re: [RFC v2] Unicode/UTF-8 support for XFS References: <20140918195650.GI19952@sgi.com> <20140922222611.GZ4322@dastard> <5422C540.1060007@sgi.com> <20140924231024.GA4758@dastard> <54257D3F.70302@sgi.com> <20140926165605.GA25274@infradead.org> <20140926170407.GB6012@samba2> <5425C067.7080904@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5425C067.7080904@sgi.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1411988768 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10019 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Sep 26, 2014 at 09:37:11PM +0200, Olaf Weber wrote: > My argument against "mount time case-insensitivity" and for "mkfs time > case-insensitivity" is related to switching from the case-sensitive domain > to the case-insensitive one. > > For case-sensitive, from "README" to "readme" there are 64 different > possible filenames. Let's say you create 63 out of these 64. Now remount > the filesystem case-insensitive, and try to open by the 64th version of > "readme". It is not an exact match for any of the 63 candidate files, and a > case-insensitive match to all 63 candidate files. Which of these 63 files > should be opened, and why that one in particular? Well, the point is not that we use the CI-capable hash all the time. I fully expect the current XFS behavior to remain the default for normal systems forever. I just want to make sure that the CI implementation you chose can also allow mixed lookups if we desire. From bfoster@redhat.com Mon Sep 29 07:18:57 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 840A07FCB for ; Mon, 29 Sep 2014 07:18:57 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 72DB9304032 for ; Mon, 29 Sep 2014 05:18:54 -0700 (PDT) X-ASG-Debug-ID: 1411993132-04cb6c50e44e6e80001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id jAAZfz1p5gyZCLBW (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 29 Sep 2014 05:18:53 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8TCINUY001404 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 29 Sep 2014 08:18:23 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8TCINZs006886; Mon, 29 Sep 2014 08:18:23 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 2279F120064; Mon, 29 Sep 2014 08:18:22 -0400 (EDT) Date: Mon, 29 Sep 2014 08:18:21 -0400 From: Brian Foster To: Christoph Hellwig Cc: Dave Chinner , xfs@oss.sgi.com Subject: Re: [PATCH 1/3] xfs: consider freeze levels in xfs_fs_writable() Message-ID: <20140929121821.GA65297@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 1/3] xfs: consider freeze levels in xfs_fs_writable() References: <1411647632-28240-1-git-send-email-david@fromorbit.com> <1411647632-28240-2-git-send-email-david@fromorbit.com> <20140925161756.GA25798@infradead.org> <20140925210330.GG4945@dastard> <20140926094436.GA10692@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140926094436.GA10692@infradead.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411993133 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Sep 26, 2014 at 02:44:36AM -0700, Christoph Hellwig wrote: > On Fri, Sep 26, 2014 at 07:03:30AM +1000, Dave Chinner wrote: > > I can mention it, but it's so trivial I didn't think it was worth > > it. > > It does change behavior, so it should document why that was changed. > > > The changelog says "Hence allow the caller to pass in the freeze > > level it is allowed to write" which is exactly what this code is > > doing. > > The changelog says the you can pass the argument now. It doesn't > say that it did change a caller to pass a different argument, and more > importanly why. > Note that iirc the patch I posted had a bug so this one is preferred, but feel free to steal the commit log/problem description from the old one: http://oss.sgi.com/archives/xfs/2014-08/msg00073.html Brian > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Mon Sep 29 08:21:05 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E445B7FA5 for ; Mon, 29 Sep 2014 08:21:05 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id D1AC5304032 for ; Mon, 29 Sep 2014 06:21:02 -0700 (PDT) X-ASG-Debug-ID: 1411996857-04cb6c50e64ef7b0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 6Ix4xLKfthPoFHBd (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 29 Sep 2014 06:20:58 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8TDKtlZ028511 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 29 Sep 2014 09:20:55 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8TDKsQt012171; Mon, 29 Sep 2014 09:20:55 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 9F36D120064; Mon, 29 Sep 2014 09:20:53 -0400 (EDT) Date: Mon, 29 Sep 2014 09:20:53 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 3/3] xfs: consolidate superblock logging functions Message-ID: <20140929132050.GB65297@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 3/3] xfs: consolidate superblock logging functions References: <1411647632-28240-1-git-send-email-david@fromorbit.com> <1411647632-28240-4-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411647632-28240-4-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411996857 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Sep 25, 2014 at 10:20:32PM +1000, Dave Chinner wrote: > From: Dave Chinner > > We now have several superblock loggin functions that are identical > except for the transaction reservation and whether it shoul dbe a > synchronous transaction or not. Consolidate these all into a single > function, a single reserveration and a sync flag and call it > xfs_sync_sb(). > > Also, xfs_mod_sb() is not really a modification function - it's the > operation of logging the superblock buffer. hence change the name of > it to reflect this. > > Note that we have to change the mp->m_update_flags that are passed > around at mount time to a boolean simply to indicate a superblock > update is needed. > > Signed-off-by: Dave Chinner > --- > fs/xfs/libxfs/xfs_attr_leaf.c | 2 +- > fs/xfs/libxfs/xfs_bmap.c | 10 +++--- > fs/xfs/libxfs/xfs_sb.c | 43 +++++++++++++++++++---- > fs/xfs/libxfs/xfs_sb.h | 42 ++--------------------- > fs/xfs/libxfs/xfs_shared.h | 26 ++++++-------- > fs/xfs/libxfs/xfs_trans_resv.c | 14 -------- > fs/xfs/libxfs/xfs_trans_resv.h | 1 - > fs/xfs/xfs_fsops.c | 29 ---------------- > fs/xfs/xfs_log.c | 17 ++++++++-- > fs/xfs/xfs_mount.c | 77 ++++++------------------------------------ > fs/xfs/xfs_mount.h | 3 +- > fs/xfs/xfs_qm.c | 27 ++------------- > fs/xfs/xfs_qm_syscalls.c | 7 ++-- > fs/xfs/xfs_super.c | 13 +++---- > 14 files changed, 95 insertions(+), 216 deletions(-) > > diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c > index f4a47a7..bcb0ab1 100644 > --- a/fs/xfs/libxfs/xfs_attr_leaf.c > +++ b/fs/xfs/libxfs/xfs_attr_leaf.c > @@ -405,7 +405,7 @@ xfs_sbversion_add_attr2(xfs_mount_t *mp, xfs_trans_t *tp) > if (!xfs_sb_version_hasattr2(&mp->m_sb)) { > xfs_sb_version_addattr2(&mp->m_sb); > spin_unlock(&mp->m_sb_lock); > - xfs_mod_sb(tp); > + xfs_log_sb(tp); > } else > spin_unlock(&mp->m_sb_lock); > } > diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c > index e33a780..d40be66 100644 > --- a/fs/xfs/libxfs/xfs_bmap.c > +++ b/fs/xfs/libxfs/xfs_bmap.c > @@ -1224,20 +1224,20 @@ xfs_bmap_add_attrfork( > goto bmap_cancel; > if (!xfs_sb_version_hasattr(&mp->m_sb) || > (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2)) { > - bool mod_sb = false; > + bool log_sb = false; > > spin_lock(&mp->m_sb_lock); > if (!xfs_sb_version_hasattr(&mp->m_sb)) { > xfs_sb_version_addattr(&mp->m_sb); > - mod_sb = true; > + log_sb = true; > } > if (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2) { > xfs_sb_version_addattr2(&mp->m_sb); > - mod_sb = true; > + log_sb = true; > } > spin_unlock(&mp->m_sb_lock); > - if (mod_sb) > - xfs_mod_sb(tp); > + if (log_sb) > + xfs_log_sb(tp); > } > > error = xfs_bmap_finish(&tp, &flist, &committed); > diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c > index 2803325..b5ffbe4 100644 > --- a/fs/xfs/libxfs/xfs_sb.c > +++ b/fs/xfs/libxfs/xfs_sb.c > @@ -744,14 +744,13 @@ xfs_initialize_perag_data( > } > > /* > - * xfs_mod_sb() can be used to copy arbitrary changes to the > - * in-core superblock into the superblock buffer to be logged. > - * It does not provide the higher level of locking that is > - * needed to protect the in-core superblock from concurrent > - * access. > + * xfs_log_sb() can be used to copy arbitrary changes to the in-core superblock > + * into the superblock buffer to be logged. It does not provide the higher > + * level of locking that is needed to protect the in-core superblock from > + * concurrent access. > */ > void > -xfs_mod_sb( > +xfs_log_sb( > struct xfs_trans *tp) > { > struct xfs_mount *mp = tp->t_mountp; > @@ -761,3 +760,35 @@ xfs_mod_sb( > xfs_trans_buf_set_type(tp, bp, XFS_BLFT_SB_BUF); > xfs_trans_log_buf(tp, bp, 0, sizeof(struct xfs_dsb)); > } > + > +/* > + * xfs_sync_sb > + * > + * Sync the superblock to disk. > + * > + * Note that the caller is responsible for checking the frozen state of the > + * filesystem. This procedure uses the non-blocking transaction allocator and > + * thus will allow modifications to a frozen fs. This is required because this > + * code can be called during the process of freezing where use of the high-level > + * allocator would deadlock. > + */ > +int > +xfs_sync_sb( > + struct xfs_mount *mp, > + bool wait) > +{ > + struct xfs_trans *tp; > + int error; > + > + tp = _xfs_trans_alloc(mp, XFS_TRANS_SB_CHANGE, KM_SLEEP); > + error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0); > + if (error) { > + xfs_trans_cancel(tp, 0); > + return error; > + } > + > + xfs_log_sb(tp); > + if (wait) > + xfs_trans_set_sync(tp); > + return xfs_trans_commit(tp, 0); > +} > diff --git a/fs/xfs/libxfs/xfs_sb.h b/fs/xfs/libxfs/xfs_sb.h > index c28b3c1..73dff28 100644 > --- a/fs/xfs/libxfs/xfs_sb.h > +++ b/fs/xfs/libxfs/xfs_sb.h > @@ -274,45 +274,6 @@ typedef enum { > XFS_SBS_FIELDCOUNT > } xfs_sb_field_t; > > -/* > - * Mask values, defined based on the xfs_sb_field_t values. > - * Only define the ones we're using. > - */ > -#define XFS_SB_MVAL(x) (1LL << XFS_SBS_ ## x) > -#define XFS_SB_UUID XFS_SB_MVAL(UUID) > -#define XFS_SB_FNAME XFS_SB_MVAL(FNAME) > -#define XFS_SB_ROOTINO XFS_SB_MVAL(ROOTINO) > -#define XFS_SB_RBMINO XFS_SB_MVAL(RBMINO) > -#define XFS_SB_RSUMINO XFS_SB_MVAL(RSUMINO) > -#define XFS_SB_VERSIONNUM XFS_SB_MVAL(VERSIONNUM) > -#define XFS_SB_UQUOTINO XFS_SB_MVAL(UQUOTINO) > -#define XFS_SB_GQUOTINO XFS_SB_MVAL(GQUOTINO) > -#define XFS_SB_QFLAGS XFS_SB_MVAL(QFLAGS) > -#define XFS_SB_SHARED_VN XFS_SB_MVAL(SHARED_VN) > -#define XFS_SB_UNIT XFS_SB_MVAL(UNIT) > -#define XFS_SB_WIDTH XFS_SB_MVAL(WIDTH) > -#define XFS_SB_ICOUNT XFS_SB_MVAL(ICOUNT) > -#define XFS_SB_IFREE XFS_SB_MVAL(IFREE) > -#define XFS_SB_FDBLOCKS XFS_SB_MVAL(FDBLOCKS) > -#define XFS_SB_FEATURES2 XFS_SB_MVAL(FEATURES2) > -#define XFS_SB_BAD_FEATURES2 XFS_SB_MVAL(BAD_FEATURES2) > -#define XFS_SB_FEATURES_COMPAT XFS_SB_MVAL(FEATURES_COMPAT) > -#define XFS_SB_FEATURES_RO_COMPAT XFS_SB_MVAL(FEATURES_RO_COMPAT) > -#define XFS_SB_FEATURES_INCOMPAT XFS_SB_MVAL(FEATURES_INCOMPAT) > -#define XFS_SB_FEATURES_LOG_INCOMPAT XFS_SB_MVAL(FEATURES_LOG_INCOMPAT) > -#define XFS_SB_CRC XFS_SB_MVAL(CRC) > -#define XFS_SB_PQUOTINO XFS_SB_MVAL(PQUOTINO) > -#define XFS_SB_NUM_BITS ((int)XFS_SBS_FIELDCOUNT) > -#define XFS_SB_ALL_BITS ((1LL << XFS_SB_NUM_BITS) - 1) > -#define XFS_SB_MOD_BITS \ > - (XFS_SB_UUID | XFS_SB_ROOTINO | XFS_SB_RBMINO | XFS_SB_RSUMINO | \ > - XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | XFS_SB_GQUOTINO | \ > - XFS_SB_QFLAGS | XFS_SB_SHARED_VN | XFS_SB_UNIT | XFS_SB_WIDTH | \ > - XFS_SB_ICOUNT | XFS_SB_IFREE | XFS_SB_FDBLOCKS | XFS_SB_FEATURES2 | \ > - XFS_SB_BAD_FEATURES2 | XFS_SB_FEATURES_COMPAT | \ > - XFS_SB_FEATURES_RO_COMPAT | XFS_SB_FEATURES_INCOMPAT | \ > - XFS_SB_FEATURES_LOG_INCOMPAT | XFS_SB_PQUOTINO) > - > > /* > * Misc. Flags - warning - these will be cleared by xfs_repair unless > @@ -612,7 +573,8 @@ extern void xfs_perag_put(struct xfs_perag *pag); > extern int xfs_initialize_perag_data(struct xfs_mount *, xfs_agnumber_t); > > extern void xfs_sb_calc_crc(struct xfs_buf *bp); > -extern void xfs_mod_sb(struct xfs_trans *tp); > +extern void xfs_log_sb(struct xfs_trans *tp); > +extern int xfs_sync_sb(struct xfs_mount *mp, bool wait); > extern void xfs_sb_mount_common(struct xfs_mount *mp, struct xfs_sb *sbp); > extern void xfs_sb_from_disk(struct xfs_sb *to, struct xfs_dsb *from); > extern void xfs_sb_to_disk(struct xfs_dsb *to, struct xfs_sb *from); > diff --git a/fs/xfs/libxfs/xfs_shared.h b/fs/xfs/libxfs/xfs_shared.h > index 82404da..4ae617a 100644 > --- a/fs/xfs/libxfs/xfs_shared.h > +++ b/fs/xfs/libxfs/xfs_shared.h > @@ -82,7 +82,7 @@ extern const struct xfs_buf_ops xfs_symlink_buf_ops; > #define XFS_TRANS_ATTR_RM 23 > #define XFS_TRANS_ATTR_FLAG 24 > #define XFS_TRANS_CLEAR_AGI_BUCKET 25 > -#define XFS_TRANS_QM_SBCHANGE 26 > +#define XFS_TRANS_SB_CHANGE 26 > /* > * Dummy entries since we use the transaction type to index into the > * trans_type[] in xlog_recover_print_trans_head() > @@ -95,17 +95,15 @@ extern const struct xfs_buf_ops xfs_symlink_buf_ops; > #define XFS_TRANS_QM_DQCLUSTER 32 > #define XFS_TRANS_QM_QINOCREATE 33 > #define XFS_TRANS_QM_QUOTAOFF_END 34 > -#define XFS_TRANS_SB_UNIT 35 > -#define XFS_TRANS_FSYNC_TS 36 > -#define XFS_TRANS_GROWFSRT_ALLOC 37 > -#define XFS_TRANS_GROWFSRT_ZERO 38 > -#define XFS_TRANS_GROWFSRT_FREE 39 > -#define XFS_TRANS_SWAPEXT 40 > -#define XFS_TRANS_SB_COUNT 41 > -#define XFS_TRANS_CHECKPOINT 42 > -#define XFS_TRANS_ICREATE 43 > -#define XFS_TRANS_CREATE_TMPFILE 44 > -#define XFS_TRANS_TYPE_MAX 44 > +#define XFS_TRANS_FSYNC_TS 35 > +#define XFS_TRANS_GROWFSRT_ALLOC 36 > +#define XFS_TRANS_GROWFSRT_ZERO 37 > +#define XFS_TRANS_GROWFSRT_FREE 37 38? FWIW, it also looks like the dummy entries are out of order between these definitions and the XFS_TRANS_TYPES definition below (aesthetic) and a couple of the create entries are missing. > +#define XFS_TRANS_SWAPEXT 39 > +#define XFS_TRANS_CHECKPOINT 40 > +#define XFS_TRANS_ICREATE 41 > +#define XFS_TRANS_CREATE_TMPFILE 42 > +#define XFS_TRANS_TYPE_MAX 43 > /* new transaction types need to be reflected in xfs_logprint(8) */ > > #define XFS_TRANS_TYPES \ > @@ -134,20 +132,18 @@ extern const struct xfs_buf_ops xfs_symlink_buf_ops; > { XFS_TRANS_ATTR_RM, "ATTR_RM" }, \ > { XFS_TRANS_ATTR_FLAG, "ATTR_FLAG" }, \ > { XFS_TRANS_CLEAR_AGI_BUCKET, "CLEAR_AGI_BUCKET" }, \ > - { XFS_TRANS_QM_SBCHANGE, "QM_SBCHANGE" }, \ > + { XFS_TRANS_SB_CHANGE, "SBCHANGE" }, \ > { XFS_TRANS_QM_QUOTAOFF, "QM_QUOTAOFF" }, \ > { XFS_TRANS_QM_DQALLOC, "QM_DQALLOC" }, \ > { XFS_TRANS_QM_SETQLIM, "QM_SETQLIM" }, \ > { XFS_TRANS_QM_DQCLUSTER, "QM_DQCLUSTER" }, \ > { XFS_TRANS_QM_QINOCREATE, "QM_QINOCREATE" }, \ > { XFS_TRANS_QM_QUOTAOFF_END, "QM_QOFF_END" }, \ > - { XFS_TRANS_SB_UNIT, "SB_UNIT" }, \ > { XFS_TRANS_FSYNC_TS, "FSYNC_TS" }, \ > { XFS_TRANS_GROWFSRT_ALLOC, "GROWFSRT_ALLOC" }, \ > { XFS_TRANS_GROWFSRT_ZERO, "GROWFSRT_ZERO" }, \ > { XFS_TRANS_GROWFSRT_FREE, "GROWFSRT_FREE" }, \ > { XFS_TRANS_SWAPEXT, "SWAPEXT" }, \ > - { XFS_TRANS_SB_COUNT, "SB_COUNT" }, \ > { XFS_TRANS_CHECKPOINT, "CHECKPOINT" }, \ > { XFS_TRANS_DUMMY1, "DUMMY1" }, \ > { XFS_TRANS_DUMMY2, "DUMMY2" }, \ > diff --git a/fs/xfs/libxfs/xfs_trans_resv.c b/fs/xfs/libxfs/xfs_trans_resv.c > index f2bda7c..7c42e2c 100644 > --- a/fs/xfs/libxfs/xfs_trans_resv.c > +++ b/fs/xfs/libxfs/xfs_trans_resv.c > @@ -718,17 +718,6 @@ xfs_calc_clear_agi_bucket_reservation( > } > > /* > - * Clearing the quotaflags in the superblock. > - * the super block for changing quota flags: sector size > - */ > -STATIC uint > -xfs_calc_qm_sbchange_reservation( > - struct xfs_mount *mp) > -{ > - return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize); > -} > - > -/* > * Adjusting quota limits. > * the xfs_disk_dquot_t: sizeof(struct xfs_disk_dquot) > */ > @@ -866,9 +855,6 @@ xfs_trans_resv_calc( > * The following transactions are logged in logical format with > * a default log count. > */ > - resp->tr_qm_sbchange.tr_logres = xfs_calc_qm_sbchange_reservation(mp); > - resp->tr_qm_sbchange.tr_logcount = XFS_DEFAULT_LOG_COUNT; > - > resp->tr_qm_setqlim.tr_logres = xfs_calc_qm_setqlim_reservation(mp); > resp->tr_qm_setqlim.tr_logcount = XFS_DEFAULT_LOG_COUNT; > > diff --git a/fs/xfs/libxfs/xfs_trans_resv.h b/fs/xfs/libxfs/xfs_trans_resv.h > index 1097d14..2d5bdfc 100644 > --- a/fs/xfs/libxfs/xfs_trans_resv.h > +++ b/fs/xfs/libxfs/xfs_trans_resv.h > @@ -56,7 +56,6 @@ struct xfs_trans_resv { > struct xfs_trans_res tr_growrtalloc; /* grow realtime allocations */ > struct xfs_trans_res tr_growrtzero; /* grow realtime zeroing */ > struct xfs_trans_res tr_growrtfree; /* grow realtime freeing */ > - struct xfs_trans_res tr_qm_sbchange; /* change quota flags */ > struct xfs_trans_res tr_qm_setqlim; /* adjust quota limits */ > struct xfs_trans_res tr_qm_dqalloc; /* allocate quota on disk */ > struct xfs_trans_res tr_qm_quotaoff; /* turn quota off */ > diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c > index 2c44e0b..126b4b3 100644 > --- a/fs/xfs/xfs_fsops.c > +++ b/fs/xfs/xfs_fsops.c > @@ -763,35 +763,6 @@ out: > return 0; > } > > -/* > - * Dump a transaction into the log that contains no real change. This is needed > - * to be able to make the log dirty or stamp the current tail LSN into the log > - * during the covering operation. > - * > - * We cannot use an inode here for this - that will push dirty state back up > - * into the VFS and then periodic inode flushing will prevent log covering from > - * making progress. Hence we log a field in the superblock instead and use a > - * synchronous transaction to ensure the superblock is immediately unpinned > - * and can be written back. > - */ > -int > -xfs_fs_log_dummy( > - xfs_mount_t *mp) > -{ > - xfs_trans_t *tp; > - int error; > - > - tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1, KM_SLEEP); > - error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0); > - if (error) { > - xfs_trans_cancel(tp, 0); > - return error; > - } > - xfs_mod_sb(tp); > - xfs_trans_set_sync(tp); > - return xfs_trans_commit(tp, 0); > -} > - > int > xfs_fs_goingdown( > xfs_mount_t *mp, > diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c > index 7ada70c..b1131fe 100644 > --- a/fs/xfs/xfs_log.c > +++ b/fs/xfs/xfs_log.c > @@ -1292,9 +1292,20 @@ xfs_log_worker( > struct xfs_mount *mp = log->l_mp; > > /* dgc: errors ignored - not fatal and nowhere to report them */ > - if (xfs_log_need_covered(mp)) > - xfs_fs_log_dummy(mp); > - else > + if (xfs_log_need_covered(mp)) { > + /* > + * Dump a transaction into the log that contains no real change. > + * This is needed stamp the current tail LSN into the log during "... to stamp" Brian > + * the covering operation. > + * > + * We cannot use an inode here for this - that will push dirty > + * state back up into the VFS and then periodic inode flushing > + * will prevent log covering from making progress. Hence we > + * synchronously log the superblock instead to ensure the > + * superblock is immediately unpinned and can be written back. > + */ > + xfs_sync_sb(mp, true); > + } else > xfs_log_force(mp, 0); > > /* start pushing all the metadata that is currently dirty */ > diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c > index e555411..78a2799 100644 > --- a/fs/xfs/xfs_mount.c > +++ b/fs/xfs/xfs_mount.c > @@ -416,11 +416,11 @@ xfs_update_alignment(xfs_mount_t *mp) > if (xfs_sb_version_hasdalign(sbp)) { > if (sbp->sb_unit != mp->m_dalign) { > sbp->sb_unit = mp->m_dalign; > - mp->m_update_flags |= XFS_SB_UNIT; > + mp->m_update_sb = true; > } > if (sbp->sb_width != mp->m_swidth) { > sbp->sb_width = mp->m_swidth; > - mp->m_update_flags |= XFS_SB_WIDTH; > + mp->m_update_sb = true; > } > } else { > xfs_warn(mp, > @@ -588,38 +588,18 @@ int > xfs_mount_reset_sbqflags( > struct xfs_mount *mp) > { > - int error; > - struct xfs_trans *tp; > - > mp->m_qflags = 0; > > - /* > - * It is OK to look at sb_qflags here in mount path, > - * without m_sb_lock. > - */ > + /* It is OK to look at sb_qflags in the mount path without m_sb_lock. */ > if (mp->m_sb.sb_qflags == 0) > return 0; > spin_lock(&mp->m_sb_lock); > mp->m_sb.sb_qflags = 0; > spin_unlock(&mp->m_sb_lock); > > - /* > - * If the fs is readonly, let the incore superblock run > - * with quotas off but don't flush the update out to disk > - */ > if (!xfs_fs_writable(mp, SB_UNFROZEN)) > return 0; > - > - tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE); > - error = xfs_trans_reserve(tp, &M_RES(mp)->tr_qm_sbchange, 0, 0); > - if (error) { > - xfs_trans_cancel(tp, 0); > - xfs_alert(mp, "%s: Superblock update failed!", __func__); > - return error; > - } > - > - xfs_mod_sb(tp); > - return xfs_trans_commit(tp, 0); > + return xfs_sync_sb(mp, false); > } > > __uint64_t > @@ -683,7 +663,7 @@ xfs_mountfs( > xfs_warn(mp, "correcting sb_features alignment problem"); > sbp->sb_features2 |= sbp->sb_bad_features2; > sbp->sb_bad_features2 = sbp->sb_features2; > - mp->m_update_flags |= XFS_SB_FEATURES2 | XFS_SB_BAD_FEATURES2; > + mp->m_update_sb = true; > > /* > * Re-check for ATTR2 in case it was found in bad_features2 > @@ -697,17 +677,17 @@ xfs_mountfs( > if (xfs_sb_version_hasattr2(&mp->m_sb) && > (mp->m_flags & XFS_MOUNT_NOATTR2)) { > xfs_sb_version_removeattr2(&mp->m_sb); > - mp->m_update_flags |= XFS_SB_FEATURES2; > + mp->m_update_sb = true; > > /* update sb_versionnum for the clearing of the morebits */ > if (!sbp->sb_features2) > - mp->m_update_flags |= XFS_SB_VERSIONNUM; > + mp->m_update_sb = true; > } > > /* always use v2 inodes by default now */ > if (!(mp->m_sb.sb_versionnum & XFS_SB_VERSION_NLINKBIT)) { > mp->m_sb.sb_versionnum |= XFS_SB_VERSION_NLINKBIT; > - mp->m_update_flags |= XFS_SB_VERSIONNUM; > + mp->m_update_sb = true; > } > > /* > @@ -900,8 +880,8 @@ xfs_mountfs( > * the next remount into writeable mode. Otherwise we would never > * perform the update e.g. for the root filesystem. > */ > - if (mp->m_update_flags && !(mp->m_flags & XFS_MOUNT_RDONLY)) { > - error = xfs_mount_log_sb(mp); > + if (mp->m_update_sb && !(mp->m_flags & XFS_MOUNT_RDONLY)) { > + error = xfs_sync_sb(mp, false); > if (error) { > xfs_warn(mp, "failed to write sb changes"); > goto out_rtunmount; > @@ -1101,9 +1081,6 @@ xfs_fs_writable(xfs_mount_t *mp, int frozen_state) > int > xfs_log_sbcount(xfs_mount_t *mp) > { > - xfs_trans_t *tp; > - int error; > - > /* > * We can be called during the fs freeze process, and we need to be > * able to write the superblock in that case. > @@ -1120,17 +1097,7 @@ xfs_log_sbcount(xfs_mount_t *mp) > if (!xfs_sb_version_haslazysbcount(&mp->m_sb)) > return 0; > > - tp = _xfs_trans_alloc(mp, XFS_TRANS_SB_COUNT, KM_SLEEP); > - error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0); > - if (error) { > - xfs_trans_cancel(tp, 0); > - return error; > - } > - > - xfs_mod_sb(tp); > - xfs_trans_set_sync(tp); > - error = xfs_trans_commit(tp, 0); > - return error; > + return xfs_sync_sb(mp, true); > } > > /* > @@ -1424,28 +1391,6 @@ xfs_freesb( > } > > /* > - * Used to log changes to the superblock unit and width fields which could > - * be altered by the mount options, as well as any potential sb_features2 > - * fixup. Only the first superblock is updated. > - */ > -int > -xfs_mount_log_sb( > - xfs_mount_t *mp) > -{ > - xfs_trans_t *tp; > - int error; > - > - tp = xfs_trans_alloc(mp, XFS_TRANS_SB_UNIT); > - error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0); > - if (error) { > - xfs_trans_cancel(tp, 0); > - return error; > - } > - xfs_mod_sb(tp); > - return xfs_trans_commit(tp, 0); > -} > - > -/* > * If the underlying (data/log/rt) device is readonly, there are some > * operations that cannot proceed. > */ > diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h > index 01f66e5..06f16d5 100644 > --- a/fs/xfs/xfs_mount.h > +++ b/fs/xfs/xfs_mount.h > @@ -162,8 +162,7 @@ typedef struct xfs_mount { > struct delayed_work m_reclaim_work; /* background inode reclaim */ > struct delayed_work m_eofblocks_work; /* background eof blocks > trimming */ > - __int64_t m_update_flags; /* sb flags we need to update > - on the next remount,rw */ > + bool m_update_sb; /* sb needs update in mount */ > int64_t m_low_space[XFS_LOWSP_MAX]; > /* low free space thresholds */ > struct xfs_kobj m_kobj; > diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c > index 1691edb..bfb017d 100644 > --- a/fs/xfs/xfs_qm.c > +++ b/fs/xfs/xfs_qm.c > @@ -794,7 +794,7 @@ xfs_qm_qino_alloc( > else > mp->m_sb.sb_pquotino = (*ip)->i_ino; > spin_unlock(&mp->m_sb_lock); > - xfs_mod_sb(tp); > + xfs_log_sb(tp); > > if ((error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES))) { > xfs_alert(mp, "%s failed (error %d)!", __func__, error); > @@ -1447,7 +1447,7 @@ xfs_qm_mount_quotas( > spin_unlock(&mp->m_sb_lock); > > if (sbf != (mp->m_qflags & XFS_MOUNT_QUOTA_ALL)) { > - if (xfs_qm_write_sb_changes(mp)) { > + if (xfs_sync_sb(mp, false)) { > /* > * We could only have been turning quotas off. > * We aren't in very good shape actually because > @@ -1576,29 +1576,6 @@ xfs_qm_dqfree_one( > xfs_qm_dqdestroy(dqp); > } > > -/* > - * Start a transaction and write the incore superblock changes to > - * disk. flags parameter indicates which fields have changed. > - */ > -int > -xfs_qm_write_sb_changes( > - struct xfs_mount *mp) > -{ > - xfs_trans_t *tp; > - int error; > - > - tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE); > - error = xfs_trans_reserve(tp, &M_RES(mp)->tr_qm_sbchange, 0, 0); > - if (error) { > - xfs_trans_cancel(tp, 0); > - return error; > - } > - > - xfs_mod_sb(tp); > - return xfs_trans_commit(tp, 0); > -} > - > - > /* --------------- utility functions for vnodeops ---------------- */ > > > diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c > index 45f28f1..d558306 100644 > --- a/fs/xfs/xfs_qm_syscalls.c > +++ b/fs/xfs/xfs_qm_syscalls.c > @@ -93,7 +93,7 @@ xfs_qm_scall_quotaoff( > mutex_unlock(&q->qi_quotaofflock); > > /* XXX what to do if error ? Revert back to old vals incore ? */ > - return xfs_qm_write_sb_changes(mp); > + return xfs_sync_sb(mp, false); > } > > dqtype = 0; > @@ -370,7 +370,8 @@ xfs_qm_scall_quotaon( > if ((qf & flags) == flags) > return -EEXIST; > > - if ((error = xfs_qm_write_sb_changes(mp))) > + error = xfs_sync_sb(mp, false); > + if (error) > return error; > /* > * If we aren't trying to switch on quota enforcement, we are done. > @@ -795,7 +796,7 @@ xfs_qm_log_quotaoff( > mp->m_sb.sb_qflags = (mp->m_qflags & ~(flags)) & XFS_MOUNT_QUOTA_ALL; > spin_unlock(&mp->m_sb_lock); > > - xfs_mod_sb(tp); > + xfs_log_sb(tp); > > /* > * We have to make sure that the transaction is secure on disk before we > diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c > index a7d2def..d018f65 100644 > --- a/fs/xfs/xfs_super.c > +++ b/fs/xfs/xfs_super.c > @@ -1254,13 +1254,13 @@ xfs_fs_remount( > * If this is the first remount to writeable state we > * might have some superblock changes to update. > */ > - if (mp->m_update_flags) { > - error = xfs_mount_log_sb(mp); > + if (mp->m_update_sb) { > + error = xfs_sync_sb(mp, false); > if (error) { > xfs_warn(mp, "failed to write sb changes"); > return error; > } > - mp->m_update_flags = 0; > + mp->m_update_sb = false; > } > > /* > @@ -1290,8 +1290,9 @@ xfs_fs_remount( > > /* > * Second stage of a freeze. The data is already frozen so we only > - * need to take care of the metadata. Once that's done write a dummy > - * record to dirty the log in case of a crash while frozen. > + * need to take care of the metadata. Once that's done sync the superblock > + * to the log to dirty it in case of a crash while frozen. This ensures that we > + * will recover the unlinked inode lists on the next mount. > */ > STATIC int > xfs_fs_freeze( > @@ -1301,7 +1302,7 @@ xfs_fs_freeze( > > xfs_save_resvblks(mp); > xfs_quiesce_attr(mp); > - return xfs_fs_log_dummy(mp); > + return xfs_sync_sb(mp, true); > } > > STATIC int > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Mon Sep 29 09:09:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 28ACB7FED for ; Mon, 29 Sep 2014 09:09:38 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id EECBB30404E for ; Mon, 29 Sep 2014 07:09:34 -0700 (PDT) X-ASG-Debug-ID: 1411999770-04bdf003a15cbdc0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id TpLyDTTFRWKe3gph (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 29 Sep 2014 07:09:30 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8TE9Sc7025041 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 29 Sep 2014 10:09:28 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8TE9SHl014859; Mon, 29 Sep 2014 10:09:28 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 3FC10120064; Mon, 29 Sep 2014 10:09:27 -0400 (EDT) Date: Mon, 29 Sep 2014 10:09:27 -0400 From: Brian Foster To: Dave Chinner Cc: fstests@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [PATCH] xfs/053: test for stale data exposure via falloc/writeback interaction Message-ID: <20140929140926.GC65297@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs/053: test for stale data exposure via falloc/writeback interaction References: <1411756349-4537-1-git-send-email-bfoster@redhat.com> <20140929033244.GL4758@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140929033244.GL4758@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1411999770 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Sep 29, 2014 at 01:32:44PM +1000, Dave Chinner wrote: > On Fri, Sep 26, 2014 at 02:32:29PM -0400, Brian Foster wrote: > > XFS buffered I/O writeback has a subtle race condition that leads to > > stale data exposure if the filesystem happens to crash after delayed > > allocation blocks are converted on disk and before data is written back > > to said blocks. > > > > Use file allocation commands to attempt to reproduce a related, but > > slightly different variant of this problem. The associated falloc > > commands can lead to partial writeback that converts an extent larger > > than the range affected by falloc. If the filesystem crashes after the > > extent conversion but before all other cached data is written to the > > extent, stale data can be exposed. > > > > Signed-off-by: Brian Foster > > --- > > > > This fell out of a combination of a conversation with Dave about XFS > > writeback and buffer/cache coherency and some hacking I'm doing on the > > XFS zero range implementation. Note that fpunch currently fails the > > test. Also, this test is XFS specific primarily due to the use of > > godown. > ..... > > +_crashtest() > > +{ > > + cmd=$1 > > + img=$SCRATCH_MNT/$seq.img > > + mnt=$SCRATCH_MNT/$seq.mnt > > + file=$mnt/file > > + > > + # Create an fs on a small, initialized image. The pattern is written to > > + # the image to detect stale data exposure. > > + $XFS_IO_PROG -f -c "truncate 0" -c "pwrite 0 25M" $img \ > > + >> $seqres.full 2>&1 > > + $MKFS_XFS_PROG $MKFS_OPTIONS $img >> $seqres.full 2>&1 > > + > > + mkdir -p $mnt > > + mount $img $mnt > > + > > + echo $cmd > > + > > + # write, run the test command and shutdown the fs > > + $XFS_IO_PROG -f -c "pwrite -S 1 0 64k" -c "$cmd 60k 4k" $file | \ > > + _filter_xfs_io > > So at this point the file is correctly 64k in size in memory. > > > + ./src/godown -f $mnt > > And here you tell godown to flush the log, so if there's a > transaction in the that sets the inode size to 64k. > > > + umount $mnt > > + mount $img $mnt > > Then log recovery will set the file size to 64k, and: > > > + > > + # we generally expect a zero-sized file (this should be silent) > > + hexdump $file > > This comment is not actually correct. I'm actually seeing 64k length > files after recovery in 2 of 3 cases being tested, so I don't think > this is a correct observation. > > Some clarification of what is actually being tested is needed > here. > What output is dumped for the file? I normally see either a zero length file or data that was never written to the file. For example, punch fails with this: +0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd +* +000f000 0000 0000 0000 0000 0000 0000 0000 0000 +* +0010000 I suppose it could be possible to see a non-zero length file with valid data, but I've not seen that occur. Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com From jack@suse.cz Mon Sep 29 11:04:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 721077FF6 for ; Mon, 29 Sep 2014 11:04:39 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 5F24C304051 for ; Mon, 29 Sep 2014 09:04:39 -0700 (PDT) X-ASG-Debug-ID: 1412006670-04cb6c50e65126f0001-NocioJ Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id QiFPMSbmhJjFqYRj (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 29 Sep 2014 09:04:31 -0700 (PDT) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 85408AB07; Mon, 29 Sep 2014 16:04:29 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id 96E8A81C6B; Mon, 29 Sep 2014 17:55:15 +0200 (CEST) Date: Mon, 29 Sep 2014 17:55:15 +0200 From: Jan Kara To: Dave Chinner Cc: Jan Kara , Christoph Hellwig , adilger@dilger.ca, linux-api@vger.kernel.org, xfs@oss.sgi.com, dmonakhov@openvz.org, viro@zeniv.linux.org.uk, Li Xi , linux-fsdevel@vger.kernel.org, tytso@mit.edu, linux-ext4@vger.kernel.org Subject: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project Message-ID: <20140929155515.GE6328@quack.suse.cz> X-ASG-Orig-Subj: Re: [PATCH 4/4] Adds ioctl interface support for ext4 project References: <1411567470-31799-1-git-send-email-lixi@ddn.com> <1411567470-31799-5-git-send-email-lixi@ddn.com> <20140924162507.GC27000@quack.suse.cz> <20140924162634.GA16886@infradead.org> <20140924170105.GE27000@quack.suse.cz> <20140925075912.GG4758@dastard> <20140925135213.GB15352@quack.suse.cz> <20140925224225.GJ4945@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140925224225.GJ4945@dastard> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: cantor2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1412006670 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10026 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri 26-09-14 08:42:25, Dave Chinner wrote: > On Thu, Sep 25, 2014 at 03:52:13PM +0200, Jan Kara wrote: > > On Thu 25-09-14 17:59:12, Dave Chinner wrote: > > > On Wed, Sep 24, 2014 at 07:01:05PM +0200, Jan Kara wrote: > > > > On Wed 24-09-14 09:26:34, Christoph Hellwig wrote: > > > > > On Wed, Sep 24, 2014 at 06:25:07PM +0200, Jan Kara wrote: > > > > > > On Wed 24-09-14 22:04:30, Li Xi wrote: > > > > > > > This patch adds ioctl interface for setting/getting project of ext4. > > > > > > The patch looks good to me. I was just wondering whether it won't be > > > > > > useful to add an ioctl() which isn't ext4 specific. We could just extend > > > > > > ->setattr() to allow setting of project ID (most filesystems would just > > > > > > return -EOPNOTSUPP but ext4 and xfs could do the right thing) and then call > > > > > > ->setattr from the generic ioctl. That way userspace won't have to care > > > > > > about filesystem type when setting project ID... What do others think? > > > > > > > > > > Absolutely. In general I also wonder why this patch doesn't implement > > > > > the full XFS API. Maybe there is a reason it was considered and > > > > > rejected, but it would be helpful to document why. > > > > Do you mean full get/setfsxattr API? > > > > > > That's a good start. > > > > > > The bigger issue in my mind is that we already have a fully featured > > > quota API that supports project quotas and userspace tools available > > > that manipulate it. xfstests already uses those tools and API > > > for testing project quotas. > > Well, the VFS quota API is trivially extended by adding additional quota > > type so I don't really see about which reinventing of quota API are you > > speaking here... > > It doesn't seem quite as trivial as you make out given all thei > issues so far around increasing MAXQUOTA, the increase in size of > the inode, etc. Well, troubles with increasing MAXQUOTAS is more about expectations that VFS quota subsystem can support only 2 quota types. So we have to do those changes regardless of interface we choose. There is one change necessary in the interface (not done yet) and that is that filesystems using VFS quotas and not supporting project quotas will need to refuse quotactls for project quotas. This won't be necessary if we simply refuse to manipulate project quotas using the standard VFS interface. But I wouldn't call it difficult either. > > > This whole patchset reinvents all the quota APIs, and will require > > > adding support in userspace, and hence require re-inventing all the > > > test infrastructure we already have because it won't be compatible > > > with the existing project quota test code. > > Well, quota-tools will have to extended to know about the new quota type. > > Yes. But that's easy to do. I think teaching xfs quota tools to work with > > ext4 will be a bigger project plus I don't think I want to force sysadmins > > which are used to work with quota-tools to switch to other utilities just > > because of project quotas. > > > > Regarding xfstests - I've checked and most of the project quota tests in > > xfs directory aren't directly usable for ext4 anyway because of other > > functionality ext4 doesn't support. So we'll need to distill the least > > common denominator from them anyway... > > I just did a quick scan - of the ~13 tests in tests/xfs that > exercise project quotas, only 2 of them test things that are xfs > specific (e.g. use xfs_db to peer at things, or use xfs_admin, etc). > The rest all rely on xfs_quota to manage and configure project > quotas but otherwise don't do anything XFS specific. Yeah, I messed up my original check (I originally found like 5 project quota related tests and they were those problematic). I checked again and most of them should be relatively easy to adapt (we'll need some changes for mount options handling but that's inevitable). > We want project quotas to have the same management interface for > administrators regardless of the filesystem they are using. The only > way we can do that is to ensure that the same tools work on either > filesystem, and right now it seems to me that the ext4 NIH syndrome > is winning out over what is best for our users... > > Look, I have no problems with extending the existing quota > interfaces to support project quotas, but that should be a > *secondary* improvement as userspace tools are updated. The > primary goal needs to be "works identically to XFS" and so it needs > to implement the interfaces that are currently used for management > so that we can actually test that it does work identically. So I had another look at the quotactl interface we are speaking about. XFS has the following commands there: Q_XQUOTAON Q_XQUOTAOFF These could be relatively easily hooked up to call appropriate VFS functions. Q_XQUOTARM This doesn't have equivalent in VFS and currently I'm not convinced we want to do the work in filesystems to support this... Q_XGETQSTAT Q_XGETQSTATV This corresponds to Q_GETINFO of VFS quotas although it provides more information. We don't easily have things like number of incore dquots or number of file extents available. There's also no limit on the number of warnings. But other than that diverting these to VFS interfaces through a translation function should be easy. Any idea on what numbers should we present from VFS? BTW how do you set the information? We have Q_SETINFO for that in VFS quotas. Q_XSETQLIM Q_XGETQUOTA These are already handled so they work regardless of the underlying fs type. Q_XQUOTASYNC This is the same as Q_SYNC. For VFS quotas we need to do some work in some cases. So all in all it seems relatively easy to make the VFS and XFS quota interfaces more compatible than they are now and it's a direction I like. I can have a look into that once I finish patches to move i_dquot[] array out of generic inode (which is desirable regardless of project quotas). Honza -- Jan Kara SUSE Labs, CR From anton.gamel@physik.uni-freiburg.de Mon Sep 29 11:47:49 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B5F7A7FFA for ; Mon, 29 Sep 2014 11:47:49 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id A458C8F8035 for ; Mon, 29 Sep 2014 09:47:46 -0700 (PDT) X-ASG-Debug-ID: 1412009264-04cbb073025fa410001-NocioJ Received: from mailgateway3.uni-freiburg.de (mailgateway3.uni-freiburg.de [132.230.2.213]) by cuda.sgi.com with ESMTP id 4dnNvnsqy4AqW6N2 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 29 Sep 2014 09:47:44 -0700 (PDT) X-Barracuda-Envelope-From: anton.gamel@physik.uni-freiburg.de X-Barracuda-Apparent-Source-IP: 132.230.2.213 Delivery-date: Mon, 29 Sep 2014 18:47:45 +0200 Received: from ms2.uni-freiburg.de ([132.230.2.3] helo=uni-freiburg.de) port 34910 by mailgateway3.uni-freiburg.de with esmtp (Exim 4.80.1 #2 built 18-Dec-2013 10:01:47 running on Gentoo) id 1XYe6u-00063t-0M; Mon, 29 Sep 2014 18:47:40 +0200 Received: from proton.ruf.uni-freiburg.de (account anton.gamel@physik.uni-freiburg.de [132.230.8.150] verified) by physik.uni-freiburg.de (CommuniGate Pro SMTP 6.0.9) with ESMTPA id 241337433; Mon, 29 Sep 2014 18:47:37 +0200 Message-ID: <54298D29.5000702@physik.uni-freiburg.de> Date: Mon, 29 Sep 2014 18:47:37 +0200 From: "Gamel Anton J." Organization: =?ISO-8859-1?Q?Universit=E4t_Freiburg?= User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: sandeen@sandeen.net, Dave Chinner CC: xfs@oss.sgi.com Subject: Re: irregular mkfs.xfs results on identical HW References: <54247484.2030808@physik.uni-freiburg.de> <20140925211901.GH4945@dastard> X-ASG-Orig-Subj: Re: irregular mkfs.xfs results on identical HW In-Reply-To: <20140925211901.GH4945@dastard> Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms030808090600060105090303" X-Barracuda-Connect: mailgateway3.uni-freiburg.de[132.230.2.213] X-Barracuda-Start-Time: 1412009264 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10028 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- This is a cryptographically signed message in MIME format. --------------ms030808090600060105090303 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Re Dave, Eric and all, thanks a lot for the quick answers. This is definitely a version issue I did not take into account at first. We ran into it when slurm found small differences in scratch space. All (diskless) SL6.5 computenodes have xfsprogs-3.1.1-10.el6.x86_64 installed, but creation of xfs was done with older versions on SL5. Recreation of xfs after disk problems changed the xfs outcome as seen. From the beginning the plan was to recreate xfs at every boot time. For some reason this did not work for (all) the diskless machines and we dropped that in favour of a find+rm. Now I reconsider a format at boot time again. Cheers Anton On 09/25/2014 11:19 PM, Dave Chinner wrote: > On Thu, Sep 25, 2014 at 10:01:08PM +0200, Gamel Anton J. wrote: >> Dear all, >> >> servers with identical disk setup (HW RAID0 H310a): >> >> Disk /dev/sda: 598.9 GB, 598879502336 bytes >> /dev/sda1 1 49152 394813439+ 82 Linux swap / S= olaris >> /dev/sda2 49153 50176 8225280 83 Linux >> /dev/sda3 6399 72809 533446357+ 44 Unknown >> >> mkfs.xfs creates on 28 of them: >> meta-data=3D/dev/sda3 isize=3D256 agcount=3D16, agsize= =3D8335099 blks >> =3D sectsz=3D512 attr=3D1, projid32b= it=3D0 >> data =3D bsize=3D4096 blocks=3D133361584, = imaxpct=3D25 >> =3D sunit=3D0 swidth=3D0 blks >> naming =3Dversion 2 bsize=3D4096 ascii-ci=3D0 >> log =3Dinternal bsize=3D4096 blocks=3D32768, vers= ion=3D1 >> =3D sectsz=3D512 sunit=3D0 blks, laz= y-count=3D1 >> realtime =3Dnone extsz=3D4096 blocks=3D0, rtextent= s=3D0 > > THat's clearly an old version of mkfs - it's selected version 1 logs > and attr1 by default and a log size of only 128MB. mkfs.xfs has > defaulted to v2 logs since 3.0.0 (2007). > >> but on four out of them: >> meta-data=3D/dev/sda3 isize=3D256 agcount=3D4, agsize=3D= 33340398 blks >> =3D sectsz=3D512 attr=3D2, projid32b= it=3D0 >> data =3D bsize=3D4096 blocks=3D133361589, = imaxpct=3D25 >> =3D sunit=3D0 swidth=3D0 blks >> naming =3Dversion 2 bsize=3D4096 ascii-ci=3D0 >> log =3Dinternal bsize=3D4096 blocks=3D65117, vers= ion=3D2 >> =3D sectsz=3D512 sunit=3D0 blks, laz= y-count=3D1 >> realtime =3Dnone extsz=3D4096 blocks=3D0, rtextent= s=3D0 > > Clearly much newer - attr2, log v2, log larger than 128MB... > > mkfs.xfs -V on each of the nodes will tell you that they are running > different versions of mkfs, I think. > >> The only way it worked was to dump nodeA:/dev/sda3 to nodeB:/dev/sda3 >> Is there an explanation? May be I missed something ... hints? > > If you are building a new storage system, then I'd highly recommend > all the nodes run the same software and that software is the newest > possible release you can get.... > > Cheers, > > Dave. > --=20 Beste Gruesse Anton J. Gamel HPC und GRID-Computing Physikalisches Institut Abteilung Professor Schumacher c/o Rechenzentrum der Universit=E4t Freiburg Arbeitsgruppe Dr. Winterer Hermann-Herder-Stra=DFe 10 79104 Freiburg Tel.: ++49 (0)761 203 -4670 -- Es bleibt immer ein Rest - und ein Rest vom Rest. --------------ms030808090600060105090303 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIEQjCC BD4wggMmoAMCAQICAlwKMA0GCSqGSIb3DQEBDQUAMDYxCzAJBgNVBAYTAkRFMRMwEQYDVQQK EwpHZXJtYW5HcmlkMRIwEAYDVQQDEwlHcmlkS2EtQ0EwHhcNMTQwNjMwMTMzMzI2WhcNMTUw NzMwMTMzMzI2WjBUMQswCQYDVQQGEwJERTETMBEGA1UEChMKR2VybWFuR3JpZDEUMBIGA1UE CxMLVW5pRnJlaWJ1cmcxGjAYBgNVBAMTEUFudG9uIEpvc2VmIEdhbWVsMIIBIjANBgkqhkiG 9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvx9uDrse74v5oGPzZLMat9I50/WrLOIshXX7jwXxGH/1 RCdOKLOi3nEOg48i4/24IxwlxJNe1XPl8BIhBnKGWeTEt9rmu9rRoir4ogeGnBSm7mTinMOJ TmlonXEiIPerAIjAGdKVZNvCbup557HJ92bMiq/8IoNCpgD+Yu8r6VqoArws2APwVr3U/JcW njFQj0xX6ZMJwuF55HFC1mNQ3QifcobgWaHdFZK//eK9uT/13r5kB/BeX3X1Ha1xom26otPG Rl30bVMPLdxi8VyHK65zPIPGNh7FsXG32FS3iKQDhesXgrxh1heiFgyBff3xS1qa0bYcvUCT F3giJ8KPfQIDAQABo4IBNjCCATIwDAYDVR0TAQH/BAIwADAOBgNVHQ8BAf8EBAMCBLAwHQYD VR0lBBYwFAYIKwYBBQUHAwIGCCsGAQUFBwMEMB0GA1UdDgQWBBQDiUhVzQiNx2h2W9g8mGm4 05Y3wTAfBgNVHSMEGDAWgBTGdckorNEL/Dz/ubUe0187gGISNDAtBgNVHREEJjAkgSJhbnRv bi5nYW1lbEBwaHlzaWsudW5pLWZyZWlidXJnLmRlMBwGA1UdEgQVMBOBEWdyaWRrYS1jYUBr aXQuZWR1MDwGA1UdHwQ1MDMwMaAvoC2GK2h0dHA6Ly9ncmlka2EtY2Eua2l0LmVkdS9jcmwv Z3JpZGthLWNybC5kZXIwKAYDVR0gBCEwHzAPBg0rBgEEAZQ2qywBAQEJMAwGCiqGSIb3TAUC AgEwDQYJKoZIhvcNAQENBQADggEBANWSgkn5qzIUp5/XZfuQ42OHhuppguXtrbzblWe2gtkf WOWm4GrX4oRRHaUvIRkjrgOlc7jPHnLRMwccQJf1EMRRNFRqd5RrQeZxetMzxoOG4GxpSxOJ 5wqHoNYThl4c/73Ph2F+dpSBoqsWucUZPbrjcrQTQ0s630uB9XHinDeicidT4WynSAgE13Zl mr2jXDVGTzA7Ja3CTYCZaDZH5KV7fnOBnAxvZnyGAg24eL65fJhEyQxj5oPDjZsnw78UQevt r+n1jdSEI0PzlFi/2/7TX1ZmGOejxvBOd0WwFtzl8omz92R0jRUiDXgg5SV1kEAo5lTgiSMY n92mUIEYlwwxggLOMIICygIBATA8MDYxCzAJBgNVBAYTAkRFMRMwEQYDVQQKEwpHZXJtYW5H cmlkMRIwEAYDVQQDEwlHcmlkS2EtQ0ECAlwKMAkGBSsOAwIaBQCgggFnMBgGCSqGSIb3DQEJ AzELBgkqhkiG9w0BBwEwHAYJKoZIhvcNAQkFMQ8XDTE0MDkyOTE2NDczN1owIwYJKoZIhvcN AQkEMRYEFFQnp/Gn1Jsw9C388JbrK/cYtUATMEsGCSsGAQQBgjcQBDE+MDwwNjELMAkGA1UE BhMCREUxEzARBgNVBAoTCkdlcm1hbkdyaWQxEjAQBgNVBAMTCUdyaWRLYS1DQQICXAowTQYL KoZIhvcNAQkQAgsxPqA8MDYxCzAJBgNVBAYTAkRFMRMwEQYDVQQKEwpHZXJtYW5HcmlkMRIw EAYDVQQDEwlHcmlkS2EtQ0ECAlwKMGwGCSqGSIb3DQEJDzFfMF0wCwYJYIZIAWUDBAEqMAsG CWCGSAFlAwQBAjAKBggqhkiG9w0DBzAOBggqhkiG9w0DAgICAIAwDQYIKoZIhvcNAwICAUAw BwYFKw4DAgcwDQYIKoZIhvcNAwICASgwDQYJKoZIhvcNAQEBBQAEggEAkPdKzmVyUHGLVEbB DAopF+2mcL1Fj+tLRkibbsZnqMmqxlx9tO4HKQyCy+/y3dP9YrN3EWvTJLeXPGz+UjR8BL5+ KjPKv0zFMFKoumR2m1ndUbkUMJ44QmItw91TkauiSyldMb+D2ZiaJsiBf1SE0qmDKyt5CBqS rmwun/EhGKSMbHLSEY48dLXcpChFZ6jNf8M+uvENDvjp7VW6Wu2Fvn76zZGH7fJUEEsYvJVL 9KpazpQ+WvTcN7sUlFv26FEnOW0HWNOnXfNBLW7dwFbMmTSudM8RuNoZyExgzwcVsWH1+iWT RLYigApbqNDKTxxNf1uNd9Yjl3ksiabeCZ+f9gAAAAAAAA== --------------ms030808090600060105090303-- From ratikala@cavblog.com Mon Sep 29 12:35:36 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=2.0 required=5.0 tests=DEAR_SOMETHING,HTML_MESSAGE, MIME_QP_LONG_LINE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 346978007 for ; Mon, 29 Sep 2014 12:35:36 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id A8DC4AC001 for ; Mon, 29 Sep 2014 10:35:32 -0700 (PDT) X-ASG-Debug-ID: 1412012128-04cbb07302602560001-NocioJ Received: from smtp.mydomain.com ([191.101.2.73]) by cuda.sgi.com with ESMTP id LEmHJnFU4aUqU3qE for ; Mon, 29 Sep 2014 10:35:28 -0700 (PDT) X-Barracuda-Envelope-From: ratikala@cavblog.com X-Barracuda-Apparent-Source-IP: 191.101.2.73 Received: from ratikala (triband-mum-120.60.39.38.mtnl.net.in [120.60.39.38]) by smtp.mydomain.com (Postfix) with ESMTP id 9E18843A50 for ; Mon, 29 Sep 2014 23:03:17 +0530 (IST) Message-ID: <411-220149129173519718@ratikala> Return-Receipt-To: ratikala@cavblog.com Disposition-Notification-To: ratikala@cavblog.com From: "Ratikala" To: xfs@oss.sgi.com Subject: Get Daily New Customers from Google - Every day | Date: Mon, 29 Sep 2014 23:05:19 +0500 X-ASG-Orig-Subj: Get Daily New Customers from Google - Every day | MIME-Version: 1.0 Content-Type: multipart/alternative; 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------=_NextPart_84815C5ABAF209EF376268C8-- From bfoster@redhat.com Mon Sep 29 14:09:32 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 58F1C8007 for ; Mon, 29 Sep 2014 14:09:32 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 390EE304051 for ; Mon, 29 Sep 2014 12:09:29 -0700 (PDT) X-ASG-Debug-ID: 1412017767-04cbb07302611500001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id FKoKSHXDek1xWC9w (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 29 Sep 2014 12:09:28 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8TJ9OPr028844 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 29 Sep 2014 15:09:25 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8TJ9NYM025662; Mon, 29 Sep 2014 15:09:23 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 0EDE3120064; Mon, 29 Sep 2014 15:09:22 -0400 (EDT) Date: Mon, 29 Sep 2014 15:09:22 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 08/11] xfs: kill xfs_bioerror_relse Message-ID: <20140929190921.GB35666@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 08/11] xfs: kill xfs_bioerror_relse References: <1411648461-29003-1-git-send-email-david@fromorbit.com> <1411648461-29003-9-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411648461-29003-9-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1412017767 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Sep 25, 2014 at 10:34:18PM +1000, Dave Chinner wrote: > From: Dave Chinner > > There is only one caller now - xfs_trans_read_buf_map() - and it has > very well defined call semantics - read, synchronous, and b_iodone > is NULL. Hence it's pretty clear what error handling is necessary > for this case. The bigger problem of untangling > xfs_trans_read_buf_map error handling is left to a future patch. > > Signed-off-by: Dave Chinner > --- > fs/xfs/xfs_buf.c | 39 --------------------------------------- > fs/xfs/xfs_buf.h | 2 -- > fs/xfs/xfs_trans_buf.c | 9 ++++++--- > 3 files changed, 6 insertions(+), 44 deletions(-) > > diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c > index cc6a558..4696ff5 100644 > --- a/fs/xfs/xfs_buf.c > +++ b/fs/xfs/xfs_buf.c > @@ -1074,45 +1074,6 @@ xfs_buf_ioerror_alert( > (__uint64_t)XFS_BUF_ADDR(bp), func, -bp->b_error, bp->b_length); > } > > -/* > - * Same as xfs_bioerror, except that we are releasing the buffer > - * here ourselves, and avoiding the xfs_buf_ioend call. > - * This is meant for userdata errors; metadata bufs come with > - * iodone functions attached, so that we can track down errors. > - */ > -int > -xfs_bioerror_relse( > - struct xfs_buf *bp) > -{ > - int64_t fl = bp->b_flags; > - /* > - * No need to wait until the buffer is unpinned. > - * We aren't flushing it. > - * > - * chunkhold expects B_DONE to be set, whether > - * we actually finish the I/O or not. We don't want to > - * change that interface. > - */ > - XFS_BUF_UNREAD(bp); > - XFS_BUF_DONE(bp); > - xfs_buf_stale(bp); > - bp->b_iodone = NULL; > - if (!(fl & XBF_ASYNC)) { > - /* > - * Mark b_error and B_ERROR _both_. > - * Lot's of chunkcache code assumes that. > - * There's no reason to mark error for > - * ASYNC buffers. > - */ > - xfs_buf_ioerror(bp, -EIO); > - complete(&bp->b_iowait); > - } else { > - xfs_buf_relse(bp); > - } > - > - return -EIO; > -} > - > int > xfs_bwrite( > struct xfs_buf *bp) > diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h > index 44db8cd..d8f57f6 100644 > --- a/fs/xfs/xfs_buf.h > +++ b/fs/xfs/xfs_buf.h > @@ -297,8 +297,6 @@ extern void xfs_buf_iomove(xfs_buf_t *, size_t, size_t, void *, > #define xfs_buf_zero(bp, off, len) \ > xfs_buf_iomove((bp), (off), (len), NULL, XBRW_ZERO) > > -extern int xfs_bioerror_relse(struct xfs_buf *); > - > /* Buffer Utility Routines */ > extern xfs_caddr_t xfs_buf_offset(xfs_buf_t *, size_t); > > diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c > index 96c898e..db4be5b 100644 > --- a/fs/xfs/xfs_trans_buf.c > +++ b/fs/xfs/xfs_trans_buf.c > @@ -324,11 +324,14 @@ xfs_trans_read_buf_map( > */ > if (XFS_FORCED_SHUTDOWN(mp)) { > trace_xfs_bdstrat_shut(bp, _RET_IP_); > - xfs_bioerror_relse(bp); > - } else { > - xfs_buf_iorequest(bp); > + bp->b_flags &= ~(XBF_READ | XBF_DONE); > + xfs_buf_ioerror(bp, -EIO); > + xfs_buf_stale(bp); > + xfs_buf_relse(bp); Where does the xfs_buf_relse() come from in this particular scenario? Shouldn't the bp still remain locked/reffed against the transaction? Brian P.S., I realized it doesn't matter too much because this whole block goes away in the subsequent patch. > + return -EIO; > } > > + xfs_buf_iorequest(bp); > error = xfs_buf_iowait(bp); > if (error) { > xfs_buf_ioerror_alert(bp, __func__); > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Mon Sep 29 14:09:44 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_FRT_FOLLOW2 autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 4421A29DFF for ; Mon, 29 Sep 2014 14:09:44 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 23628304048 for ; Mon, 29 Sep 2014 12:09:43 -0700 (PDT) X-ASG-Debug-ID: 1412017782-04cb6c50e6542fe0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id kIFOCuFfFrev4CFf (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 29 Sep 2014 12:09:42 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8TJ9fXE010950 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 29 Sep 2014 15:09:41 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8TJ9fDk004593; Mon, 29 Sep 2014 15:09:41 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 97911120064; Mon, 29 Sep 2014 15:09:39 -0400 (EDT) Date: Mon, 29 Sep 2014 15:09:39 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 11/11] xfs: simplify xfs_zero_remaining_bytes Message-ID: <20140929190939.GC35666@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 11/11] xfs: simplify xfs_zero_remaining_bytes References: <1411648461-29003-1-git-send-email-david@fromorbit.com> <1411648461-29003-12-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411648461-29003-12-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1412017782 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Sep 25, 2014 at 10:34:21PM +1000, Dave Chinner wrote: > From: Christoph Hellwig > > xfs_zero_remaining_bytes() open codes a log of buffer manupulations lot > to do a read forllowed by a write. It can simply be replaced by an followed > uncached read followed by a xfs_bwrite() call. an > > [Christoph, can I get your sign-off for this?] > > Signed-off-by: Dave Chinner > --- Reviewed-by: Brian Foster > fs/xfs/xfs_bmap_util.c | 44 ++++++++++++++------------------------------ > 1 file changed, 14 insertions(+), 30 deletions(-) > > diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c > index 41d9488..c2aaa58 100644 > --- a/fs/xfs/xfs_bmap_util.c > +++ b/fs/xfs/xfs_bmap_util.c > @@ -1122,14 +1122,6 @@ xfs_zero_remaining_bytes( > if (endoff > XFS_ISIZE(ip)) > endoff = XFS_ISIZE(ip); > > - bp = xfs_buf_get_uncached(XFS_IS_REALTIME_INODE(ip) ? > - mp->m_rtdev_targp : mp->m_ddev_targp, > - BTOBB(mp->m_sb.sb_blocksize), 0); > - if (!bp) > - return -ENOMEM; > - > - xfs_buf_unlock(bp); > - > for (offset = startoff; offset <= endoff; offset = lastoffset + 1) { > uint lock_mode; > > @@ -1152,32 +1144,24 @@ xfs_zero_remaining_bytes( > ASSERT(imap.br_startblock != DELAYSTARTBLOCK); > if (imap.br_state == XFS_EXT_UNWRITTEN) > continue; > - XFS_BUF_UNDONE(bp); > - XFS_BUF_UNWRITE(bp); > - XFS_BUF_READ(bp); > - XFS_BUF_SET_ADDR(bp, xfs_fsb_to_db(ip, imap.br_startblock)); > > - error = xfs_buf_submit_wait(bp); > - if (error) { > - xfs_buf_ioerror_alert(bp, > - "xfs_zero_remaining_bytes(read)"); > - break; > - } > + error = xfs_buf_read_uncached(XFS_IS_REALTIME_INODE(ip) ? > + mp->m_rtdev_targp : mp->m_ddev_targp, > + xfs_fsb_to_db(ip, imap.br_startblock), > + BTOBB(mp->m_sb.sb_blocksize), > + 0, &bp, NULL); > + if (error) > + return error; > + > memset(bp->b_addr + > - (offset - XFS_FSB_TO_B(mp, imap.br_startoff)), > - 0, lastoffset - offset + 1); > - XFS_BUF_UNDONE(bp); > - XFS_BUF_UNREAD(bp); > - XFS_BUF_WRITE(bp); > + (offset - XFS_FSB_TO_B(mp, imap.br_startoff)), > + 0, lastoffset - offset + 1); > > - error = xfs_buf_submit_wait(bp); > - if (error) { > - xfs_buf_ioerror_alert(bp, > - "xfs_zero_remaining_bytes(write)"); > - break; > - } > + error = xfs_bwrite(bp); > + xfs_buf_relse(bp); > + if (error) > + return error; > } > - xfs_buf_free(bp); > return error; > } > > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfields@fieldses.org Mon Sep 29 15:17:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 62E19800D for ; Mon, 29 Sep 2014 15:17:19 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 38F2C8F8033 for ; Mon, 29 Sep 2014 13:17:16 -0700 (PDT) X-ASG-Debug-ID: 1412021833-04bdf003a1606820001-NocioJ Received: from fieldses.org (fieldses.org [174.143.236.118]) by cuda.sgi.com with ESMTP id ptB1XCTYzKwOxvVL (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO); Mon, 29 Sep 2014 13:17:14 -0700 (PDT) X-Barracuda-Envelope-From: bfields@fieldses.org X-Barracuda-Apparent-Source-IP: 174.143.236.118 Received: from bfields by fieldses.org with local (Exim 4.76) (envelope-from ) id 1XYhNK-0001Aq-FL; Mon, 29 Sep 2014 16:16:50 -0400 Date: Mon, 29 Sep 2014 16:16:50 -0400 To: Olaf Weber Cc: Jeremy Allison , Christoph Hellwig , Dave Chinner , Ben Myers , linux-fsdevel@vger.kernel.org, tinguely@sgi.com, xfs@oss.sgi.com Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS Message-ID: <20140929201650.GA3640@fieldses.org> X-ASG-Orig-Subj: Re: [RFC v2] Unicode/UTF-8 support for XFS References: <20140918195650.GI19952@sgi.com> <20140922222611.GZ4322@dastard> <5422C540.1060007@sgi.com> <20140924231024.GA4758@dastard> <54257D3F.70302@sgi.com> <20140926165605.GA25274@infradead.org> <20140926170407.GB6012@samba2> <5425C067.7080904@sgi.com> <20140926194656.GC13066@samba2> <5425C6A6.3060003@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5425C6A6.3060003@sgi.com> User-Agent: Mutt/1.5.21 (2010-09-15) From: "J. Bruce Fields" X-Barracuda-Connect: fieldses.org[174.143.236.118] X-Barracuda-Start-Time: 1412021834 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10037 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Sep 26, 2014 at 10:03:50PM +0200, Olaf Weber wrote: > On 26-09-14 21:46, Jeremy Allison wrote: > >On Fri, Sep 26, 2014 at 09:37:11PM +0200, Olaf Weber wrote: > >> > >>My argument against "mount time case-insensitivity" and for "mkfs > >>time case-insensitivity" is related to switching from the > >>case-sensitive domain to the case-insensitive one. > >> > >>For case-sensitive, from "README" to "readme" there are 64 different > >>possible filenames. Let's say you create 63 out of these 64. Now > >>remount the filesystem case-insensitive, and try to open by the 64th > >>version of "readme". It is not an exact match for any of the 63 > >>candidate files, and a case-insensitive match to all 63 candidate > >>files. Which of these 63 files should be opened, and why that one in > >>particular? > > > >I'm ok with "mkfs time case-insensitivity" - really ! > >Most of my OEMs would set that and claim victory (few > >of them care much about NFS semantics :-). > > I'd say you can have CIFS-style case-insensitive semantics or > NFS-style case-sensitive semantics, but not both. Note the NFSv4 specs do claim to allow case insensitivity. No idea how well clients deal with it. I think rfc3530bis has the most up to date language on NFSv4 internationalization issues: http://tools.ietf.org/html/draft-ietf-nfsv4-rfc3530bis-33 (One nit in the current knfsd: the server doesn't correctly report the case_insensitive attribute. If it had some flag it could check in the filesystem's superblock then it could do that right instead of just assuming 0 as it currently does (see FATTR4_WORD0_CASE_INSENSITIVE in fs/nfsd/nfs4xdr.c:nfsd4_encode_fattr).) --b. From dave@fromorbit.com Mon Sep 29 20:46:28 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E3E338016 for ; Mon, 29 Sep 2014 20:46:28 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id BBDB5304066 for ; Mon, 29 Sep 2014 18:46:28 -0700 (PDT) X-ASG-Debug-ID: 1412041583-04cbb0730466e750001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id uQf1QTxmoglZK2ik for ; Mon, 29 Sep 2014 18:46:23 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Aq0TACQLKlR5LDjwPGdsb2JhbABggw6IY65kAQEBBpxZFwEGAQEBATg5hGAjGIECAweIar9MhhKKKYQ1BY9Lmh2NEiuBNySBHgEBAQ Received: from ppp121-44-56-240.lns20.syd6.internode.on.net (HELO dastard) ([121.44.56.240]) by ipmail06.adl2.internode.on.net with ESMTP; 30 Sep 2014 11:16:14 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XYmW5-0004N5-5V; Tue, 30 Sep 2014 11:46:13 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XYmW5-0004vq-4H; Tue, 30 Sep 2014 11:46:13 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: iusty@k1024.org Subject: [PATCH 0/2] xfs: cleanup XFS_IOC_SETXATTR behaviour Date: Tue, 30 Sep 2014 11:46:03 +1000 X-ASG-Orig-Subj: [PATCH 0/2] xfs: cleanup XFS_IOC_SETXATTR behaviour Message-Id: <1412041565-18873-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1412041583 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10048 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi folks, A while back Iustin Pop sent a patch to fix a problem with being unable to set extent size hint values on directories. That patch - along with new xfstests functionality to always check the scratch device after a test - has pointed out that we allow certain directory only inode flags to be set on other types of inodes (e.g. regular files). It also pointed out that we could set extent size hints on inodes that don't have extent size hint flags set. This patchset does not attempt to fix the original problem, not add any new validation of what is passed from userspace. Instead, it simply ensures that what we end up with on disk is valid. That is, directory only flags are only set on directory inodes, and extent size hints are set if the inode flags are set, otherwise it is cleared. Hence we don't end up with "invalid" state on disk, and so xfstests doesn't get upset with directory only flags being set on non directory inodes. Further followups will be needed to address the original issue of changing extent size hints on directories and handling invalid flag/value combinations from userspace. I have not attempted to solve that problem here because it could have impact on userspace application behaviour and that's a different issue to ensuring we end up with valid inode state on disk. Thoughts, comments, flames? Cheers, Dave. From dave@fromorbit.com Mon Sep 29 20:46:29 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E1E568016 for ; Mon, 29 Sep 2014 20:46:29 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id C73BA8F8050 for ; Mon, 29 Sep 2014 18:46:29 -0700 (PDT) X-ASG-Debug-ID: 1412041583-04cbb0730466e750002-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id pQJfr7qo2yL3Fzb4 for ; Mon, 29 Sep 2014 18:46:28 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgIUACQLKlR5LDjwPGdsb2JhbABggw6BKoc5rmQBAQEGnFkXAQYBAQEBODmEBAEFJy8jEAgYMTkDBxQZiD2/TIYSiimENQW2eisvgkoBAQE Received: from ppp121-44-56-240.lns20.syd6.internode.on.net (HELO dastard) ([121.44.56.240]) by ipmail06.adl2.internode.on.net with ESMTP; 30 Sep 2014 11:16:14 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XYmW5-0004N7-6d; Tue, 30 Sep 2014 11:46:13 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XYmW5-0004vy-5e; Tue, 30 Sep 2014 11:46:13 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: iusty@k1024.org Subject: [PATCH 2/2] xfs: only set extent size hint when asked Date: Tue, 30 Sep 2014 11:46:05 +1000 X-ASG-Orig-Subj: [PATCH 2/2] xfs: only set extent size hint when asked Message-Id: <1412041565-18873-3-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1412041565-18873-1-git-send-email-david@fromorbit.com> References: <1412041565-18873-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1412041587 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10048 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner Currently the extent size hint is set unconditionally in xfs_ioctl_setattr(), even when the FSX_EXTSIZE flag is not set. This means we can set values from uninitialised stack variables. Hence only set the extent size hint from userspace when both the mask falg is set and the inode has the XFS_DIFLAG_EXTSIZE flag set to indicate that we should have an extent size hint set on the inode. Signed-off-by: Dave Chinner --- fs/xfs/xfs_ioctl.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index 87c3bd1..24c926b 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -1231,13 +1231,25 @@ xfs_ioctl_setattr( } - if (mask & FSX_EXTSIZE) - ip->i_d.di_extsize = fa->fsx_extsize >> mp->m_sb.sb_blocklog; if (mask & FSX_XFLAGS) { xfs_set_diflags(ip, fa->fsx_xflags); xfs_diflags_to_linux(ip); } + /* + * Only set the extent size hint if we've already determined that the + * extent size hint should be set on the inode. If no extent size flags + * are set on the inode then unconditionally clear the extent size hint. + */ + if (mask & FSX_EXTSIZE) { + int extsize = 0; + + if (ip->i_d.di_flags & + (XFS_DIFLAG_EXTSIZE | XFS_DIFLAG_EXTSZINHERIT)) + extsize = fa->fsx_extsize >> mp->m_sb.sb_blocklog; + ip->i_d.di_extsize = extsize; + } + xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG); xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); -- 2.0.0 From dave@fromorbit.com Mon Sep 29 20:46:30 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id DEB048016 for ; Mon, 29 Sep 2014 20:46:30 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id B64218F8039 for ; Mon, 29 Sep 2014 18:46:30 -0700 (PDT) X-ASG-Debug-ID: 1412041588-04cb6c50e45e0ed0001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id A6QtzttuB7VSrPcO for ; Mon, 29 Sep 2014 18:46:28 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgYUACQLKlR5LDjwPGdsb2JhbABggw6BKoc5rmQBAQEGiy6RKxcBBgEBAQE4OYQEAQUnLyMQCBgxOQMHFBmIPb9MhhKKKYQ1BZcmkkkEjQcrL4JKAQEB Received: from ppp121-44-56-240.lns20.syd6.internode.on.net (HELO dastard) ([121.44.56.240]) by ipmail06.adl2.internode.on.net with ESMTP; 30 Sep 2014 11:16:14 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XYmW5-0004N6-61; Tue, 30 Sep 2014 11:46:13 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XYmW5-0004vt-57; Tue, 30 Sep 2014 11:46:13 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: iusty@k1024.org Subject: [PATCH 1/2] xfs: project id inheritance is a directory only flag Date: Tue, 30 Sep 2014 11:46:04 +1000 X-ASG-Orig-Subj: [PATCH 1/2] xfs: project id inheritance is a directory only flag Message-Id: <1412041565-18873-2-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1412041565-18873-1-git-send-email-david@fromorbit.com> References: <1412041565-18873-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1412041588 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10048 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner xfs_set_diflags() allows it to be set on non-directory inodes, and this flags errors in xfs_repair. Further, inode allocation allows the same directory-only flag to be inherited to non-directories. Make sure directory inode flags don't appear on other types of inodes. This fixes several xfstests scratch fileystem corruption reports (e.g. xfs/050) now that xfstests checks scratch filesystems after test completion. Signed-off-by: Dave Chinner --- fs/xfs/xfs_inode.c | 4 ++-- fs/xfs/xfs_ioctl.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index f07b443..8ed049d 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -769,6 +769,8 @@ xfs_ialloc( di_flags |= XFS_DIFLAG_EXTSZINHERIT; ip->i_d.di_extsize = pip->i_d.di_extsize; } + if (pip->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) + di_flags |= XFS_DIFLAG_PROJINHERIT; } else if (S_ISREG(mode)) { if (pip->i_d.di_flags & XFS_DIFLAG_RTINHERIT) di_flags |= XFS_DIFLAG_REALTIME; @@ -789,8 +791,6 @@ xfs_ialloc( if ((pip->i_d.di_flags & XFS_DIFLAG_NOSYMLINKS) && xfs_inherit_nosymlinks) di_flags |= XFS_DIFLAG_NOSYMLINKS; - if (pip->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) - di_flags |= XFS_DIFLAG_PROJINHERIT; if ((pip->i_d.di_flags & XFS_DIFLAG_NODEFRAG) && xfs_inherit_nodefrag) di_flags |= XFS_DIFLAG_NODEFRAG; diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index 7a6b406..87c3bd1 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -968,8 +968,6 @@ xfs_set_diflags( di_flags |= XFS_DIFLAG_NOATIME; if (xflags & XFS_XFLAG_NODUMP) di_flags |= XFS_DIFLAG_NODUMP; - if (xflags & XFS_XFLAG_PROJINHERIT) - di_flags |= XFS_DIFLAG_PROJINHERIT; if (xflags & XFS_XFLAG_NODEFRAG) di_flags |= XFS_DIFLAG_NODEFRAG; if (xflags & XFS_XFLAG_FILESTREAM) @@ -981,6 +979,8 @@ xfs_set_diflags( di_flags |= XFS_DIFLAG_NOSYMLINKS; if (xflags & XFS_XFLAG_EXTSZINHERIT) di_flags |= XFS_DIFLAG_EXTSZINHERIT; + if (xflags & XFS_XFLAG_PROJINHERIT) + di_flags |= XFS_DIFLAG_PROJINHERIT; } else if (S_ISREG(ip->i_d.di_mode)) { if (xflags & XFS_XFLAG_REALTIME) di_flags |= XFS_DIFLAG_REALTIME; -- 2.0.0 From jianpeng.ma@intel.com Mon Sep 29 21:39:33 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 621BD7FD1 for ; Mon, 29 Sep 2014 21:39:33 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id F0E04AC008 for ; Mon, 29 Sep 2014 19:39:32 -0700 (PDT) X-ASG-Debug-ID: 1412044771-04cbb07304670570001-NocioJ Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by cuda.sgi.com with ESMTP id OAfEgEuaqhFaOMeW for ; Mon, 29 Sep 2014 19:39:31 -0700 (PDT) X-Barracuda-Envelope-From: jianpeng.ma@intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.93 X-Barracuda-IPDD: Level2 [intel.com/192.55.52.93] Received: from azsmga001.ch.intel.com ([10.2.17.19]) by fmsmga102.fm.intel.com with ESMTP; 29 Sep 2014 19:39:30 -0700 X-Barracuda-IPDD: Level2 [intel.com/192.55.52.93] X-Barracuda-IPDD: Level2 [intel.com/192.55.52.93] X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,624,1406617200"; d="scan'208";a="480883395" Received: from fmsmsx104.amr.corp.intel.com ([10.18.124.202]) by azsmga001.ch.intel.com with ESMTP; 29 Sep 2014 19:39:30 -0700 Received: from fmsmsx152.amr.corp.intel.com (10.18.125.5) by fmsmsx104.amr.corp.intel.com (10.18.124.202) with Microsoft SMTP Server (TLS) id 14.3.195.1; Mon, 29 Sep 2014 19:39:29 -0700 Received: from shsmsx104.ccr.corp.intel.com (10.239.110.15) by FMSMSX152.amr.corp.intel.com (10.18.125.5) with Microsoft SMTP Server (TLS) id 14.3.195.1; Mon, 29 Sep 2014 19:39:30 -0700 Received: from shsmsx101.ccr.corp.intel.com ([169.254.1.203]) by SHSMSX104.ccr.corp.intel.com ([169.254.5.230]) with mapi id 14.03.0195.001; Tue, 30 Sep 2014 10:39:29 +0800 From: "Ma, Jianpeng" To: "xfs@oss.sgi.com" Subject: Question: How to use systemtap count the total inode read from disk Thread-Topic: Question: How to use systemtap count the total inode read from disk X-ASG-Orig-Subj: Question: How to use systemtap count the total inode read from disk Thread-Index: Ac/cVt4En3gsc1Z+SWqcVqynRHXRHA== Date: Tue, 30 Sep 2014 02:39:28 +0000 Message-ID: <6AA21C22F0A5DA478922644AD2EC308C8C986B@SHSMSX101.ccr.corp.intel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.239.127.40] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Barracuda-Connect: mga11.intel.com[192.55.52.93] X-Barracuda-Start-Time: 1412044771 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Hi all, I want to count the total read inode from disk.=20 I count the call number of xfs_dinoe_from_disk. But at the same time, I use blktrace to trace all read-meta operation. And= using xfs_db to analysis the read-operation. I found more meta-read are re= ad inode. But the count of systemtap is zero. The script of systemtap #! /usr/bin/env stap global count function report() { printf("total count %u\n", count) } probe module("xfs").function("xfs_dinode_from_disk") { count++ } probe end { report() } probe begin { printf("starting probe\n") count =3D 0 } Who know why? And How to do which can achieve my aim. Thanks! 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6vPs5e3yIE1pY3Jvc29mdCBXb3JkIDk3LTIwMDMACgAAAE1TV29yZERvYwAQAAAAV29yZC5Eb2N1 bWVudC44APQ5snEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA== ------=_NextPart_000_05E1_01CFDC77.C7E84260-- From david@fromorbit.com Mon Sep 29 23:39:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 6DA3C7FC6 for ; Mon, 29 Sep 2014 23:39:21 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 4D0B1304059 for ; Mon, 29 Sep 2014 21:39:21 -0700 (PDT) X-ASG-Debug-ID: 1412051956-04bdf003a0669220001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id YTXzNC5svUZUnE1D for ; Mon, 29 Sep 2014 21:39:17 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AusjAP0yKlR5LDjwPGdsb2JhbABggw6BKoIyhQeuZQEBAQaVWIVrBAICgQ0XAQYBAQEBODmEBAEBBDocIxAIAxgJJQ8FJQMHGhOIPb84GIV6igwHhEsBBJ0nmVMrL4JKAQEB Received: from ppp121-44-56-240.lns20.syd6.internode.on.net (HELO dastard) ([121.44.56.240]) by ipmail06.adl2.internode.on.net with ESMTP; 30 Sep 2014 14:09:15 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XYpDV-0004oP-CM; Tue, 30 Sep 2014 14:39:13 +1000 Date: Tue, 30 Sep 2014 14:39:13 +1000 From: Dave Chinner To: "Ma, Jianpeng" Cc: "xfs@oss.sgi.com" Subject: Re: Question: How to use systemtap count the total inode read from disk Message-ID: <20140930043913.GP4758@dastard> X-ASG-Orig-Subj: Re: Question: How to use systemtap count the total inode read from disk References: <6AA21C22F0A5DA478922644AD2EC308C8C986B@SHSMSX101.ccr.corp.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6AA21C22F0A5DA478922644AD2EC308C8C986B@SHSMSX101.ccr.corp.intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1412051956 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10052 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header On Tue, Sep 30, 2014 at 02:39:28AM +0000, Ma, Jianpeng wrote: > Hi all, > I want to count the total read inode from disk. XFS already does that for you: $ pminfo -tf xfs.inode_ops.ig_missed xfs.inode_ops.ig_missed [number of failed in memory inode lookup operations] value 1835354 $ And that's the number read from disk as reported by PCP. If you don't have PCP: $ awk '/ig/ {print $5}' /proc/fs/xfs/stat 1835354 $ Cheers, Dave. -- Dave Chinner david@fromorbit.com From iusty@k1024.org Tue Sep 30 00:55:35 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 78AA27F7C for ; Tue, 30 Sep 2014 00:55:35 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 16A6EAC004 for ; Mon, 29 Sep 2014 22:55:31 -0700 (PDT) X-ASG-Debug-ID: 1412056529-04bdf003a166b340001-NocioJ Received: from mail-wg0-f41.google.com (mail-wg0-f41.google.com [74.125.82.41]) by cuda.sgi.com with ESMTP id d5vH8bisgAvG6EQE (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 29 Sep 2014 22:55:30 -0700 (PDT) X-Barracuda-Envelope-From: iusty@k1024.org X-Barracuda-Apparent-Source-IP: 74.125.82.41 Received: by mail-wg0-f41.google.com with SMTP id k14so14766836wgh.24 for ; Mon, 29 Sep 2014 22:55:29 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:to:cc:subject:message-id :mail-followup-to:references:mime-version:content-type :content-disposition:content-transfer-encoding:in-reply-to :user-agent; bh=Bm3KftC+XZnDxjhDAh+Ul0RX+5Yni3veBHH/Au2Qa7s=; b=TFZuDaTt8Nl72utRVgN2HZ/AYVsSxjBm9Lpdv81u62b1na6qAhauxp4CqP+q3/LmB8 f2cEb87NOagnTK6jk2WCIifP1AyQq+QRjI5105pT0lhkA2RKBURMQpx0876qMlP9WkaL EEj/huf2bsoIe2guehr1YyKQzc4oeOQ6IJpLSgSc4KH5ut2MCG1XERZYM/yI+/p9PR5O nUHC1/dHVvV6LLpSvbdW+ww4n4M8XSoN5mEyToHa7myJQlf/juEH2sBJhEjd46xsvGCM XprxGbUKXokGWaKmoKTTcwb30KmzA12se99sZqYY72Uf7tXBh0hj8c/H4T1KF0H9Owim JJ1A== X-Gm-Message-State: ALoCoQnfE9DwwPqWk5m1SrlSVijgq26qr9Q+7jnuluaHFbP/ZKVneXxBqinAgeeyqFbICqdpqSVf X-Received: by 10.181.27.132 with SMTP id jg4mr3152201wid.28.1412056529291; Mon, 29 Sep 2014 22:55:29 -0700 (PDT) Received: from teal.hq.k1024.org (178-83-234-80.dynamic.hispeed.ch. [178.83.234.80]) by mx.google.com with ESMTPSA id k10sm17970153wjb.28.2014.09.29.22.55.28 for (version=TLSv1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 29 Sep 2014 22:55:28 -0700 (PDT) Received: by teal.hq.k1024.org (Postfix, from userid 4004) id AC0802057D7; Tue, 30 Sep 2014 07:55:27 +0200 (CEST) Date: Tue, 30 Sep 2014 07:55:27 +0200 From: Iustin Pop To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 0/2] xfs: cleanup XFS_IOC_SETXATTR behaviour Message-ID: <20140930055527.GA15186@teal.hq.k1024.org> X-ASG-Orig-Subj: Re: [PATCH 0/2] xfs: cleanup XFS_IOC_SETXATTR behaviour Mail-Followup-To: Dave Chinner , xfs@oss.sgi.com References: <1412041565-18873-1-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1412041565-18873-1-git-send-email-david@fromorbit.com> X-Linux: This message was written on Linux X-Header: /usr/include gives great headers User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: mail-wg0-f41.google.com[74.125.82.41] X-Barracuda-Start-Time: 1412056530 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10054 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Sep 30, 2014 at 11:46:03AM +1000, Dave Chinner wrote: > Hi folks, > > A while back Iustin Pop sent a patch to fix a problem with being > unable to set extent size hint values on directories. That patch - > along with new xfstests functionality to always check the scratch > device after a test - has pointed out that we allow certain > directory only inode flags to be set on other types of inodes (e.g. > regular files). It also pointed out that we could set extent size > hints on inodes that don't have extent size hint flags set. […] > Thoughts, comments, flames? Thanks for sending these - I didn't forget about my patches, just was busy with other stuff. I was planning to update those patches based on your comments and resend them in the next week or so. iustin From iusty@k1024.org Tue Sep 30 00:58:36 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C7F1A7F55 for ; Tue, 30 Sep 2014 00:58:36 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 8C7B38F8033 for ; Mon, 29 Sep 2014 22:58:33 -0700 (PDT) X-ASG-Debug-ID: 1412056710-04bdf003a166b4a0001-NocioJ Received: from mail-wi0-f170.google.com (mail-wi0-f170.google.com [209.85.212.170]) by cuda.sgi.com with ESMTP id kAdFs7OzIQ5o9T2O (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 29 Sep 2014 22:58:32 -0700 (PDT) X-Barracuda-Envelope-From: iusty@k1024.org X-Barracuda-Apparent-Source-IP: 209.85.212.170 Received: by mail-wi0-f170.google.com with SMTP id n3so784680wiv.3 for ; Mon, 29 Sep 2014 22:58:30 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:to:cc:subject:message-id :mail-followup-to:references:mime-version:content-type :content-disposition:in-reply-to:user-agent; bh=wQKJjepHkRjfyg4EC1w0ACplEYHlFzMgYhL4AJoInGI=; b=SEQX5qHM/ORQgf0GWmxjxEe1i0gV475vgB6r/dn97ckszmAHeskaUA/JRRb+/SVo3w 8NSsK9/XEkkNVbmxPKvGWh4m3pUEKjlvKkpEtIJ4vj94h1lze4nQSMYbGZdA7llfKoV8 E91G3fLcMasmsJQyWILu9vjVSsHXei2QOtdnIpuRPui0ufwVEcVivbfDuejZn9CibCx3 LKNQX68A9PIPhF8j8Oa9tfZnvmAsnyvotrHR1Us/7DWNn9OBRZISn14IRFKgW+In9fzP Y9t1DPryt4rB8NPvxu0fMH05LRL54QAOWSrBLLFQxX3/12tGDLf1l7IAyTe24r6rNmKO 8VoA== X-Gm-Message-State: ALoCoQkprJTb3TRSEo9HMVd7Av8EIlw498b+ghJaM9lv7cZJVjuHFOyK+yET61W3sr6mkycc6QXX X-Received: by 10.194.120.200 with SMTP id le8mr51184535wjb.43.1412056710289; Mon, 29 Sep 2014 22:58:30 -0700 (PDT) Received: from teal.hq.k1024.org (178-83-234-80.dynamic.hispeed.ch. [178.83.234.80]) by mx.google.com with ESMTPSA id x6sm14579271wif.0.2014.09.29.22.58.29 for (version=TLSv1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 29 Sep 2014 22:58:29 -0700 (PDT) Received: by teal.hq.k1024.org (Postfix, from userid 4004) id 13DC82057D7; Tue, 30 Sep 2014 07:58:29 +0200 (CEST) Date: Tue, 30 Sep 2014 07:58:29 +0200 From: Iustin Pop To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/2] xfs: only set extent size hint when asked Message-ID: <20140930055829.GB15186@teal.hq.k1024.org> X-ASG-Orig-Subj: Re: [PATCH 2/2] xfs: only set extent size hint when asked Mail-Followup-To: Dave Chinner , xfs@oss.sgi.com References: <1412041565-18873-1-git-send-email-david@fromorbit.com> <1412041565-18873-3-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1412041565-18873-3-git-send-email-david@fromorbit.com> X-Linux: This message was written on Linux X-Header: /usr/include gives great headers User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: mail-wi0-f170.google.com[209.85.212.170] X-Barracuda-Start-Time: 1412056711 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10054 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Sep 30, 2014 at 11:46:05AM +1000, Dave Chinner wrote: > From: Dave Chinner > > Currently the extent size hint is set unconditionally in > xfs_ioctl_setattr(), even when the FSX_EXTSIZE flag is not set. This > means we can set values from uninitialised stack variables. Hence > only set the extent size hint from userspace when both the mask > falg is set and the inode has the XFS_DIFLAG_EXTSIZE flag set to > indicate that we should have an extent size hint set on the inode. > > Signed-off-by: Dave Chinner > --- > fs/xfs/xfs_ioctl.c | 16 ++++++++++++++-- > 1 file changed, 14 insertions(+), 2 deletions(-) > > diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c > index 87c3bd1..24c926b 100644 > --- a/fs/xfs/xfs_ioctl.c > +++ b/fs/xfs/xfs_ioctl.c > @@ -1231,13 +1231,25 @@ xfs_ioctl_setattr( > > } > > - if (mask & FSX_EXTSIZE) > - ip->i_d.di_extsize = fa->fsx_extsize >> mp->m_sb.sb_blocklog; > if (mask & FSX_XFLAGS) { > xfs_set_diflags(ip, fa->fsx_xflags); > xfs_diflags_to_linux(ip); > } > > + /* > + * Only set the extent size hint if we've already determined that the > + * extent size hint should be set on the inode. If no extent size flags > + * are set on the inode then unconditionally clear the extent size hint. > + */ > + if (mask & FSX_EXTSIZE) { > + int extsize = 0; > + > + if (ip->i_d.di_flags & > + (XFS_DIFLAG_EXTSIZE | XFS_DIFLAG_EXTSZINHERIT)) > + extsize = fa->fsx_extsize >> mp->m_sb.sb_blocklog; > + ip->i_d.di_extsize = extsize; Quick question: this sounds sane, but it will have the following effect (if I understand things correctly): updating other flags on the inode (e.g. XFS_XFLAG_NOATIME) might change the recorded extent size. True, it will correct the size if not appropriate and it will have a noop impact, but still it will be an unrelated inode change. Would it make sense to document this in the xfsctl man page then? thanks, iustin From serg.gorel@ubtanet.com Tue Sep 30 03:14:30 2014 Return-Path: X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 9DE967F72 for ; Tue, 30 Sep 2014 03:14:29 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 7850FAC004 for ; Tue, 30 Sep 2014 01:14:25 -0700 (PDT) X-ASG-Debug-ID: 1412064860-04cb6c50e65ec700001-NocioJ Received: from mail.proxen.kiev.ua (mail.proxen.kiev.ua [87.76.66.186]) by cuda.sgi.com with ESMTP id Nj2AMurKewO0SXRv (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 30 Sep 2014 01:14:21 -0700 (PDT) X-Barracuda-Envelope-From: serg.gorel@ubtanet.com X-Barracuda-Apparent-Source-IP: 87.76.66.186 Received: from Unknown ([193.238.111.14]) (authenticated bits=0) by mail.proxen.kiev.ua (8.14.9/8.14.9) with ESMTP id s8U8ECmF072818; Tue, 30 Sep 2014 11:14:13 +0300 (EEST) (envelope-from serg.gorel@ubtanet.com) Message-ID: <3A3F89DAD1052122FEFBB238BCF716BE@thxwct> From: =?windows-1251?Q?=C2=E5=E4=F3=F9=E8=E9_=F1=EF=E5=F6=E8=E0?= =?windows-1251?Q?=EB=E8=F1=F2_=EF=EE_=F0=E0=E7=E2=E8=F2?= =?windows-1251?Q?=E8=FE_=EF=E5=F0=F1=EE=ED=E0=EB=E0?= To: , , , Subject: =?windows-1251?Q?=CD=EE=E2=E0=FF_=F1=E8=F1=F2=E5=EC=E0_?= =?windows-1251?Q?=D1=ED=E8=EF_?= Date: Tue, 30 Sep 2014 10:14:12 +0200 X-ASG-Orig-Subj: =?windows-1251?Q?=CD=EE=E2=E0=FF_=F1=E8=F1=F2=E5=EC=E0_?= =?windows-1251?Q?=D1=ED=E8=EF_?= MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_0AE8_01CFDC97.48577FA0" X-Priority: 3 X-Barracuda-Connect: mail.proxen.kiev.ua[87.76.66.186] X-Barracuda-Start-Time: 1412064860 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: -1001.00 X-Barracuda-Spam-Status: No, SCORE=-1001.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 This is a multi-part message in MIME format. ------=_NextPart_000_0AE8_01CFDC97.48577FA0 Content-Type: text/html; charset="windows-1251" Content-Transfer-Encoding: quoted-printable
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XHBhciB9XHBhcmQgXHFsIFxsaTBccmkwXG5vd2lkY3RscGFyXHR4NDIyMFxmYWF1dG9ccmluMFxs aW4wXGl0YXAwXHBhcmFyc2lkNzc1NzU0MCB7XGJcaW5zcnNpZDc3NTc1NDAgXCdkMFwnZjNcJ2Vh XCdlZVwnZTJcJ2VlXCdlNFwnZThcJ2YyXCdlNVwnZWJcJ2ZjfXtcaW5zcnNpZDc3NTc1NDAgXHRh YiB9e1xiXGluc3JzaWQ3NzU3NTQwIFwnZDJcJ2U4XCdlY1wnZWVcJ2Y0XCdlNVwnZTVcJ2UyXCdl MCBcJ2NlfXtcYlxmMzlcaW5zcnNpZDc3NTc1NDAgLn0NCntcYlxpbnNyc2lkNzc1NzU0MCBcJ2Mz DQpccGFyIH1ccGFyZCBccWwgXGxpMFxyaTBcc2wtM1xzbG11bHQwXG5vd2lkY3RscGFyXGZhYXV0 b1xyaW4wXGxpbjBcaXRhcDBccGFyYXJzaWQ3NzU3NTQwIHtcaW5zcnNpZDc3NTc1NDAgDQpccGFy IH1ccGFyZCBccWwgXGxpMFxyaTBcbm93aWRjdGxwYXJcZmFhdXRvXHJpbjBcbGluMFxpdGFwMFxw YXJhcnNpZDc3NTc1NDAge1xiXGluc3JzaWQ3NzU3NTQwIFwnZWVcJ2YwXCdlM1wnZWFcJ2VlXCdl Y1wnZThcJ2YyXCdlNVwnZjJcJ2UwfXtcaW5zcnNpZDc3NTc1NDAgDQpccGFyIH1ccGFyZCBccWwg XGxpMFxyaTBcd2lkY3RscGFyXGFzcGFscGhhXGFzcG51bVxmYWF1dG9cYWRqdXN0cmlnaHRccmlu MFxsaW4wXGl0YXAwIHtcaW5zcnNpZDc3NTc1NDAgDQpccGFyIH19 ------=_NextPart_000_0AE8_01CFDC97.48577FA0-- From conference.b40@gmail.com Tue Sep 30 04:31:58 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.3 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,HTML_MESSAGE,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 343957F4E for ; Tue, 30 Sep 2014 04:31:58 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 1F746304051 for ; Tue, 30 Sep 2014 02:31:55 -0700 (PDT) X-ASG-Debug-ID: 1412069508-04cbb0730167c9f0001-NocioJ Received: from mail-wg0-f66.google.com (mail-wg0-f66.google.com [74.125.82.66]) by cuda.sgi.com with ESMTP id BbtEmsjiVzRoAG6D (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Tue, 30 Sep 2014 02:31:49 -0700 (PDT) X-Barracuda-Envelope-From: conference.b40@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.66 Received: by mail-wg0-f66.google.com with SMTP id k14so3009057wgh.9 for ; Tue, 30 Sep 2014 02:31:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:cc:content-type; bh=6VxhhnwIAdde+etlvfeS1p0R0ZCaxXf1cjTrwLzenE4=; b=yYpmMdfjr2iyhavTBGfd/FgjXLWz0qP9tJ/MNkcePDgEPMqkpgrITi/SroyjAoWUC1 8WtmWpiVN79QRDhV45fWxPvhlt40dngxeXahSHCCfNrqMqc0ggTOyaAMP0Om6c/ygxvO GVomk24MZWle5VY0IF31hQyHHLiFfBm++yct19J2CtyTsvjAQe5AYHOGtgyNNFJKlz88 ZicnQYJWJ+hnFt18ESQgzoP6p+ZxOVmkqsNBRJkJ+BuvOB9HCGRVa9DiZw4Y3OEiqbJE 1ZFR5n6bi04ImPOYbQwW1er/hX/z/imgMYGa+iIfY4W7Vm01EsWW6vE8FjchRNqit8pY aIMw== MIME-Version: 1.0 X-Received: by 10.194.78.101 with SMTP id a5mr10680125wjx.118.1412069507770; Tue, 30 Sep 2014 02:31:47 -0700 (PDT) Received: by 10.66.150.38 with HTTP; Tue, 30 Sep 2014 02:31:47 -0700 (PDT) Date: Tue, 30 Sep 2014 02:31:47 -0700 Message-ID: Subject: Call for paper- International Conference on Economics, Energy, Environment and Agricultural Sciences From: "conference.b40" X-ASG-Orig-Subj: Call for paper- International Conference on Economics, Energy, Environment and Agricultural Sciences To: PP Group Cc: info@pakinsight.com Content-Type: multipart/alternative; boundary=047d7bf0c29868bb2f0504450d1b X-Barracuda-Connect: mail-wg0-f66.google.com[74.125.82.66] X-Barracuda-Start-Time: 1412069509 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.50 X-Barracuda-Spam-Status: No, SCORE=0.50 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA_TO_FROM_ADDR_MATCH, DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE, MAILTO_TO_SPAM_ADDR X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10059 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 MAILTO_TO_SPAM_ADDR URI: Includes a link to a likely spammer email 0.00 HTML_MESSAGE BODY: HTML included in message 0.50 BSF_SC0_SA_TO_FROM_ADDR_MATCH Sender Address Matches Recipient Address --047d7bf0c29868bb2f0504450d1b Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Dear Colleagues, *Call for papers* International Conference on Economics, Energy, Environment and Agricultural Sciences * (ICEEEAS)* *(**1-2 November, 2014**=E2=80=93 Kuala Lumpur, Malaysia)* *Pearl International Hotel**, Kuala Lumpur, Malaysia* http://www.pakrdw.com/?ic=3Ddetails&id=3D7 The aim of *ICEEEAS 2014* is to provide productive opportunities for academics and practitioners from interdisciplinary fields of Business, Economics, Energy, Environmental and Agricultural Sciences to meet share and take away expertise and ideas in related disciplines. The conference will bring together leading researchers in the domain of interest from around the world. The *ICEEEAS 2014* offers interdisciplinary themes of quality R&D topical developments from potential contributors and experts and provides an opportunity in bring in the new techniques or policies. *Paper Submission: For online submission, follow the link* http://www.pakrdw.com/?ic=3Ddetails&id=3D7&info=3Dsubmission *Those who wish to submit paper as an email attachment should send their papers at* *conference@pakinisght.com;* editor@aessweb.com ; conference@pakrdw.com *Publication Opportunities* To see the full list of Journals for special issues of ICEEEAS, 2014, click http://www.pakrdw.com/?ic=3Ddetails&id=3D7&info=3Dbook_proceed *Journal Publication* After presentation in ICEEEAS 2014, few selected papers will be published in special issues of the following journals. *Asian Economic and Financial Review * (*Online ISSN:* 2222-6737 - *Print ISSN:* 2305-2147) URL: http://www.aessweb.com/journals/5002 *International journal of Asian Social Science * (*Online ISSN: *2224-4441*- Print ISSN: *2226-5139) URL : http://www.aessweb.com/journals/5007 *International Journal of Management and Sustainability * (*Online ISSN:* 2306-0662* - Print ISSN:* 2306-9856) URL: http://www.pakinsight.com/?ic=3Djournal&journal=3D11 *International Journal of Sustainable Development & World Policy * (*Online ISSN: *2305-705X* - Print ISSN: *2306-9929) URL: http://www.pakinsight.com/?ic=3Djournal&journal=3D26 *International Journal of Sustainable Energy and Environmental Research* (*Online ISSN: *2306-6253* - Print ISSN: *2312-5764) URL: http://www.pakinsight.com/?ic=3Djournal&journal=3D13 Asian Journal of Agriculture and Rural Development *(Online ISSN: 2224-4433**- **Print ISSN: 2304-1455)* *URL: *http://www.aessweb.com/journals/5005 Other journals: http://www.pakrdw.com/?ic=3Ddetails&id=3D7&info=3Dpublicati= on *IMPORTANT DATES* Abstract Submission Date: 1st October, 2014 15th October, 2014 *(Extende= d deadline)* Decision of Acceptance/Rejection: Within 15 days of submission Full Paper Submission Date:20thOctober, 2014 Early Bird Discount Date: 15th October, 2014 *(Extended deadline)* Conference date: *1-2 November, 2014* Warmly Regards, *Conference Co-chair,* *(ICEEEAS) 2014 Secretariat* International Conference on Economics, Energy, Environment and Agricultural Sciences * (ICEEEAS)* http://www.pakrdw.com/?ic=3Ddetails&id=3D7 *Email: **conference@pakinisght.com;* editor@aessweb.com --047d7bf0c29868bb2f0504450d1b Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

= =C2=A0

=C2=A0

=C2=A0

Dear Colleagues,<= /span>

=C2=A0

Call for paper= s

=C2=A0<= /b>

International Conference on Economics, Energy, Environment and Agricultural Sciences

=C2=A0(ICEEEAS)

(1-2 November, 2014=E2=80=93 Kuala Lum= pur, Malaysia)

=C2=A0Pearl International Hotel, Kuala Lumpur, M= alaysia

http://www.pakrdw.com/?ic=3Ddetails&id=3D7<= b>

=C2=A0

= The aim of=C2=A0ICEEEAS 2014=C2=A0is to provide productive opportunities for academics and practitioners from interdisciplinary fields of Business, Economics, Energy, Environmental and Agricultural Sciences to meet share and take away expertise and ideas in related disciplines. The conference will bring together leading researchers= in the domain of interest from around the world.=C2=A0The ICEEEAS 2014= =C2=A0offers interdisciplinary themes of quality R&D topical developments from poten= tial contributors and experts and provides an opportunity in bring in the new techniques or policies.

=C2=A0

Paper Submissi= on:=C2=A0=C2=A0For online submission, follow the link

=C2=A0http://www.pakrdw.com/?ic=3Ddetails&= ;id=3D7&info=3Dsubmission

Those who wish= to submit paper as an email attachment should send their papers at

conference@pakinisght.co= m; editor@aessweb.com ; conference@pakrdw.com

=C2=A0

Publ= ication Opportunities

To see the full l= ist of Journals for special issues of ICEEEAS, 2014, click=C2=A0http://www.pakrdw.com/?= ic=3Ddetails&id=3D7&info=3Dbook_proceed = =C2=A0

Jour= nal Publication

= After presentation in ICEEEAS 2014, few selected papers will be published in special issues of the following journals.

=C2=A0

Asian Economic and Financial Review=C2=A0=C2=A0 =C2=A0
(Online ISSN:=C2=A02222-6737 -=C2=A0Print ISSN:=C2=A02305-214= 7)

URL:=C2=A0http://www.ae= ssweb.com/journals/5002

International journal of Asian Social Science=C2=A0
(Online ISSN:=C2=A02224-4441- Print ISSN:=C2=A02226-5139) URL : http://www.aessweb= .com/journals/5007 =C2=A0

International Journal of Management and Sustainability=C2=A0
(Online ISSN:=C2=A02306-0662=C2=A0- Print ISSN:=C2=A02306-985= 6)
URL:=C2=A0h= ttp://www.pakinsight.com/?ic=3Djournal&journal=3D11

International Journal of Sustainable Development & World Policy=C2=A0
(Online ISSN:=C2=A02305-705X=C2=A0- Print ISSN:=C2=A02306-992= 9)=C2=A0

URL:=C2=A0http://www.pakinsight.com/?ic=3Djournal&journal=3D26

International Journal of Sustainable Energy and Environmental Research=C2=A0=
(Online ISSN:=C2=A02306-6253=C2=A0- Print ISSN:=C2=A02312-576= 4)
URL:=C2=A0h= ttp://www.pakinsight.com/?ic=3Djournal&journal=3D13

Asian Journal of Agriculture and Rural Development

(Online ISSN: 2224-= 4433= - Print ISSN: 2304-1455)

URL: htt= p://www.aessweb.com/journals/5005 =C2=A0

Other = journals: http://www.pakrdw.com/?ic=3Ddetails&id=3D= 7&info=3Dpublication

=C2=A0= =C2=A0

IMPO= RTANT DATES

Abstract Submi= ssion Date:=C2=A01st=C2=A0October, 20= 14=C2=A0=C2=A0=C2=A015<= sup>th=C2=A0October, 2014=C2=A0 (Extended deadline)
Decision of Acceptance/Re= jection: Within 15 days of submission=C2=A0
Full Paper Submission Dat= e:20thOctober, 2014=C2=A0
Early Bird Discount Date:= 15th=C2=A0October, 2014 =C2=A0(Extended deadline)
Conference date:=C2=A01-2 November, 2014=C2=A0<= /b>

=C2= =A0

=C2=A0

Warm= ly Regards,

=C2= =A0

C= onference Co-chair,

(ICEEEAS) 2014 Secretariat

International Conference on Economics, Energy, Environment and Agricultural Sciences

=C2=A0(ICEEEAS)

http://www.pak= rdw.com/?ic=3Ddetails&id=3D7

Email:=C2=A0con= ference@pakinisght.com; editor@aessweb.com

=C2=A0

=C2=A0


=C2=A0

--047d7bf0c29868bb2f0504450d1b-- From cmaiolino@redhat.com Tue Sep 30 09:19:06 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 19EC97F72 for ; Tue, 30 Sep 2014 09:19:06 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id EE2CE8F8037 for ; Tue, 30 Sep 2014 07:19:02 -0700 (PDT) X-ASG-Debug-ID: 1412086741-04cb6c50e55f8c40001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id RYKTbSYpInfWH7k1 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 30 Sep 2014 07:19:02 -0700 (PDT) X-Barracuda-Envelope-From: cmaiolino@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8UEJ1x8005086 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Tue, 30 Sep 2014 10:19:01 -0400 Received: from localhost.localdomain (ovpn-113-132.phx2.redhat.com [10.3.113.132]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8UEIwlX030998 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO) for ; Tue, 30 Sep 2014 10:19:00 -0400 Date: Tue, 30 Sep 2014 11:18:57 -0300 From: Carlos Maiolino To: xfs@oss.sgi.com Subject: Why not move xfs infra-structure to "public" services Message-ID: <20140930141857.GA2053@localhost.localdomain> X-ASG-Orig-Subj: Why not move xfs infra-structure to "public" services Mail-Followup-To: xfs@oss.sgi.com MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1412086742 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Hi guys, I'm sorry for this kind of "fancy" question from my side, but I'm wondering why xfs project infra-structure (mailing list, git trees), does not use the "usual public" services. I mean, does anyone thought about moving xfs mailing list to vger.kernel.org, and the git trees to git.kernel.org? Sorry about been asking it mainly because I'm too lazy to keep deleting spams from my inbox, and also, because having 'everything I need' in a single place (kernel.org) would make my life easier (and probably many other lives :). Anyway, it's just a question/suggestion, please don't get me wrong here. IIRC there were some discussion regarding this some time ago, but, I'm not sure where the discussion stopped and/or if any decision were taken. Cheers o> -- Carlos From sandeen@sandeen.net Tue Sep 30 09:46:36 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id DC3107F73 for ; Tue, 30 Sep 2014 09:46:36 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id B92C78F8039 for ; Tue, 30 Sep 2014 07:46:36 -0700 (PDT) X-ASG-Debug-ID: 1412088395-04cbb07301688240001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id RswvJ71wrVQK8i9I for ; Tue, 30 Sep 2014 07:46:35 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id E044561295A6 for ; Tue, 30 Sep 2014 09:46:34 -0500 (CDT) Message-ID: <542AC24C.8030907@sandeen.net> Date: Tue, 30 Sep 2014 09:46:36 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: Re: Why not move xfs infra-structure to "public" services References: <20140930141857.GA2053@localhost.localdomain> X-ASG-Orig-Subj: Re: Why not move xfs infra-structure to "public" services In-Reply-To: <20140930141857.GA2053@localhost.localdomain> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1412088395 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10066 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/30/14 9:18 AM, Carlos Maiolino wrote: > Hi guys, > > I'm sorry for this kind of "fancy" question from my side, but I'm wondering why > xfs project infra-structure (mailing list, git trees), does not use the "usual > public" services. I mean, does anyone thought about moving xfs mailing list to > vger.kernel.org, and the git trees to git.kernel.org? Please see the prior thread on 8/6/14: [DISCUSS] Moving from oss.sgi.com to kernel.org :) > Sorry about been asking it mainly because I'm too lazy to keep deleting spams > from my inbox, and also, because having 'everything I need' in a single place > (kernel.org) would make my life easier (and probably many other lives :). > > Anyway, it's just a question/suggestion, please don't get me wrong here. > IIRC there were some discussion regarding this some time ago, but, I'm not > sure where the discussion stopped and/or if any decision were taken. I think it's still the plan, but takes some time & effort & coordination. -Eric From cmaiolino@redhat.com Tue Sep 30 10:02:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id CC8F57F74 for ; Tue, 30 Sep 2014 10:02:21 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id ACFA7304048 for ; Tue, 30 Sep 2014 08:02:18 -0700 (PDT) X-ASG-Debug-ID: 1412089337-04bdf003a267e860001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id jeEaASQlA3SJtYMK (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 30 Sep 2014 08:02:17 -0700 (PDT) X-Barracuda-Envelope-From: cmaiolino@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8UF2Feu025389 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 30 Sep 2014 11:02:16 -0400 Received: from localhost.localdomain (ovpn-113-132.phx2.redhat.com [10.3.113.132]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8UF2CJT027159 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Tue, 30 Sep 2014 11:02:14 -0400 Date: Tue, 30 Sep 2014 12:02:12 -0300 From: Carlos Maiolino To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: Why not move xfs infra-structure to "public" services Message-ID: <20140930150211.GB2053@localhost.localdomain> X-ASG-Orig-Subj: Re: Why not move xfs infra-structure to "public" services Mail-Followup-To: Eric Sandeen , xfs@oss.sgi.com References: <20140930141857.GA2053@localhost.localdomain> <542AC24C.8030907@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <542AC24C.8030907@sandeen.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1412089337 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 > Please see the prior thread on 8/6/14: > [DISCUSS] Moving from oss.sgi.com to kernel.org > I will :) > :) > > > Sorry about been asking it mainly because I'm too lazy to keep deleting spams > > from my inbox, and also, because having 'everything I need' in a single place > > (kernel.org) would make my life easier (and probably many other lives :). > > > > Anyway, it's just a question/suggestion, please don't get me wrong here. > > IIRC there were some discussion regarding this some time ago, but, I'm not > > sure where the discussion stopped and/or if any decision were taken. > > I think it's still the plan, but takes some time & effort & coordination. > Thanks for the answer. And, if people need help to move it, let me know, I'm willing to spend time helping the move. cheers > -Eric > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs -- Carlos From arekm@maven.pl Tue Sep 30 12:56:04 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 1C5987F76 for ; Tue, 30 Sep 2014 12:56:04 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 09B9A304048 for ; Tue, 30 Sep 2014 10:56:03 -0700 (PDT) X-ASG-Debug-ID: 1412099757-04cbb07304692270001-NocioJ Received: from mail-wg0-f44.google.com (mail-wg0-f44.google.com [74.125.82.44]) by cuda.sgi.com with ESMTP id 20dNo40ZBkAxpf1g (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Tue, 30 Sep 2014 10:55:58 -0700 (PDT) X-Barracuda-Envelope-From: arekm@maven.pl X-Barracuda-Apparent-Source-IP: 74.125.82.44 Received: by mail-wg0-f44.google.com with SMTP id y10so3343816wgg.27 for ; Tue, 30 Sep 2014 10:55:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=maven.pl; s=maven; h=from:to:subject:date:user-agent:references:in-reply-to:mime-version :content-type:content-transfer-encoding:message-id; bh=oFWJ7tHslQQPKLP7euIfkb2YZEvsobWTf6HS/eQJfKg=; b=mYfc7yYcSj5OfSSeVzVPLRmEzMBDCBfcVeODLVUQLTT3NSTyh9X85vV+pPqLSHskhZ T6FW/s1texDIFLwmkW7kf9FapHMe5ifRbhcAol3dIFsFtGZdiHtiJcTSGZVx5FtTUfbt owtG5LuovyFakBsCB629uaLuJg4vaWsHucy0k= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:subject:date:user-agent:references :in-reply-to:mime-version:content-type:content-transfer-encoding :message-id; bh=oFWJ7tHslQQPKLP7euIfkb2YZEvsobWTf6HS/eQJfKg=; b=ZGUgrX9uVE6KWRFt2KG0m0CtQxoQidQ9/ps3vY6G7nAjqcBeAjV23X8eLD746PlcZ/ R/ogA0R1nPw7cNcensplM9NSGuYuJHrNTLiISsfd54dIcbuhOG4Ig7y9vcySvHvKySMH hYMRQpL/yjbxWfSeDlsUfOMcp/zhxo+/LqtLfmaDA5I9TIPfNWvbgmgWW4vftimDmqBA 1gUJa4uUXaWXYIW+aaR4IWRYzz5r32jPcFdz2FqJ+mhDx2q9LVpZb1ykaJaCEClMl6Wm eTcycDJfQpvEqOpPzM1ac+z0vUEhXUK4cnIoD4xH7QMCJnDSYoaSn8SILlJPhh9spWm0 m+MQ== X-Gm-Message-State: ALoCoQmNIc+H/WoJLIPfIW3kTWB/vAUJI0VNPnKVYhzsIeAKO9Rbrk1E8qU0uHgO9AT8HrGhIjNJ X-Received: by 10.180.101.129 with SMTP id fg1mr7660811wib.20.1412099757105; Tue, 30 Sep 2014 10:55:57 -0700 (PDT) Received: from t400.localnet (85-222-71-204.home.aster.pl. [85.222.71.204]) by mx.google.com with ESMTPSA id g6sm19989737wjf.13.2014.09.30.10.55.56 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 30 Sep 2014 10:55:56 -0700 (PDT) From: Arkadiusz =?utf-8?q?Mi=C5=9Bkiewicz?= To: xfs@oss.sgi.com Subject: Re: Why not move xfs infra-structure to "public" services Date: Tue, 30 Sep 2014 19:55:55 +0200 X-ASG-Orig-Subj: Re: Why not move xfs infra-structure to "public" services User-Agent: KMail/1.13.7 (Linux/3.17.0-rc7; KDE/4.14.0; x86_64; ; ) References: <20140930141857.GA2053@localhost.localdomain> In-Reply-To: <20140930141857.GA2053@localhost.localdomain> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <201409301955.55208.arekm@maven.pl> X-Barracuda-Connect: mail-wg0-f44.google.com[74.125.82.44] X-Barracuda-Start-Time: 1412099758 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10070 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Tuesday 30 of September 2014, Carlos Maiolino wrote: > Hi guys, >=20 > I'm sorry for this kind of "fancy" question from my side, but I'm wonderi= ng > why xfs project infra-structure (mailing list, git trees), does not use > the "usual public" services. I mean, does anyone thought about moving xfs > mailing list to vger.kernel.org, and the git trees to git.kernel.org? vger.kernel.org has rude postmasters (at least one of them) that are unwill= ing=20 to help with vger related issues. Personal experience unfortunately. =2D-=20 Arkadiusz Mi=C5=9Bkiewicz, arekm / maven.pl From bfoster@redhat.com Tue Sep 30 13:22:56 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 16E567F81 for ; Tue, 30 Sep 2014 13:22:56 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 061A3304048 for ; Tue, 30 Sep 2014 11:22:52 -0700 (PDT) X-ASG-Debug-ID: 1412101371-04cbb07301693c60001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id FmBmjag5kgW7C2KG (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 30 Sep 2014 11:22:52 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8UIMpUr007368 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Tue, 30 Sep 2014 14:22:51 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8UIMoMx015218 for ; Tue, 30 Sep 2014 14:22:51 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 8A865120064; Tue, 30 Sep 2014 14:22:49 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH] xfs: fix check for maximum allowable extent record file offset Date: Tue, 30 Sep 2014 14:22:49 -0400 X-ASG-Orig-Subj: [PATCH] xfs: fix check for maximum allowable extent record file offset Message-Id: <1412101369-52751-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1412101372 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The maximum allowable file size on XFS is 2^63-1 (0x7fffffffffffffff). This value is unaligned with respect to typical order of 2 block sizes. Therefore, the maximum allowable block offset in a file is (2^63-1) / blocksize. xfs_repair calculates the max file offset as such in parse_sb_version(). However, if we write to the maximum byte offset of a file: $ xfs_io -fc "pwrite `echo "2^63-1-1" | bc` 1" /mnt/file wrote 1/1 bytes at offset 9223372036854775806 1.000000 bytes, 1 ops; 0.0000 sec (21.230 KiB/sec and 21739.1304 ops/sec) ... xfs_repair complains that the file contains an invalid extent (4k blocks): ... inode 99 - extent offset too large - start 9, count 1, offset 2251799813685247 ... This occurs because xfs_repair uses a >= comparison against the start offset of the record. Byte offset 2251799813685247 is 2^63-4096, and thus is the maximum valid block offset in the file. Fix the comparison to complain only if the start offset of the record is greater than the maximum allowable start offset. Signed-off-by: Brian Foster --- Hi all, This allows xfstests test xfs/071 to pass without a post-test corruption (repair) failure. Brian repair/dinode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/repair/dinode.c b/repair/dinode.c index 38a6562..f734a18 100644 --- a/repair/dinode.c +++ b/repair/dinode.c @@ -667,7 +667,7 @@ _("inode %" PRIu64 " - bad extent overflows - start %" PRIu64 ", " irec.br_startoff); goto done; } - if (irec.br_startoff >= fs_max_file_offset) { + if (irec.br_startoff > fs_max_file_offset) { do_warn( _("inode %" PRIu64 " - extent offset too large - start %" PRIu64 ", " "count %" PRIu64 ", offset %" PRIu64 "\n"), -- 1.8.3.1 From bfoster@redhat.com Tue Sep 30 14:21:31 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E2D3C7F86 for ; Tue, 30 Sep 2014 14:21:31 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id D1CCF30405F for ; Tue, 30 Sep 2014 12:21:28 -0700 (PDT) X-ASG-Debug-ID: 1412104886-04cbb07304696950001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id LaNvpc6QgLGAZRtE (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 30 Sep 2014 12:21:28 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8UJLPlG011993 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Tue, 30 Sep 2014 15:21:26 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8UJLPge008268 for ; Tue, 30 Sep 2014 15:21:25 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id A8F5B120064; Tue, 30 Sep 2014 15:21:23 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH] xfs: check for inode size overflow in xfs_new_eof() Date: Tue, 30 Sep 2014 15:21:23 -0400 X-ASG-Orig-Subj: [PATCH] xfs: check for inode size overflow in xfs_new_eof() Message-Id: <1412104883-6151-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1412104887 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 If we write to the maximum file offset (2^63-2), XFS fails to log the inode size update when the page is flushed. For example: $ xfs_io -fc "pwrite `echo "2^63-1-1" | bc` 1" /mnt/file wrote 1/1 bytes at offset 9223372036854775806 1.000000 bytes, 1 ops; 0.0000 sec (22.711 KiB/sec and 23255.8140 ops/sec) $ stat -c %s /mnt/file 9223372036854775807 $ umount /mnt ; mount /mnt/ $ stat -c %s /mnt/file 0 This occurs because XFS calculates the new file size as io_offset + io_size, I/O occurs in block sized requests, and the maximum supported file size is not block aligned. Therefore, a write to the max allowable offset on a 4k blocksize fs results in a write of size 4k to offset 2^63-4096 (e.g., equivalent to round_down(2^63-1, 4096), or IOW the offset of the block that contains the max file size). The offset plus size calculation (2^63 - 4096 + 4096 == 2^63) overflows the signed 64-bit variable which goes negative and causes the > comparison to the on-disk inode size to fail. This returns 0 from xfs_new_eof() and results in no change to the inode on-disk. Update xfs_new_eof() to explicitly detect overflow of the local calculation and use the VFS inode size in this scenario. The VFS inode size is capped to the maximum and thus XFS writes the correct inode size to disk. Signed-off-by: Brian Foster --- Hi all, This was also discovered while playing around with xfs/071, though it doesn't cause a failure. FWIW, I started off fixing this by converting xfs_new_eof() to use xfs_ufsize_t. That worked, but this seemed more explicit. Brian fs/xfs/xfs_inode.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h index c10e3fa..9af2882 100644 --- a/fs/xfs/xfs_inode.h +++ b/fs/xfs/xfs_inode.h @@ -102,7 +102,7 @@ xfs_new_eof(struct xfs_inode *ip, xfs_fsize_t new_size) { xfs_fsize_t i_size = i_size_read(VFS_I(ip)); - if (new_size > i_size) + if (new_size > i_size || new_size < 0) new_size = i_size; return new_size > ip->i_d.di_size ? new_size : 0; } -- 1.8.3.1 From david@fromorbit.com Tue Sep 30 15:00:59 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id A87867F8A for ; Tue, 30 Sep 2014 15:00:59 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 884F830405F for ; Tue, 30 Sep 2014 13:00:58 -0700 (PDT) X-ASG-Debug-ID: 1412107252-04cb6c50e660b260001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id dffXEx3gw4oRZKvN for ; Tue, 30 Sep 2014 13:00:52 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Au8vAJALK1R5LDjwPGdsb2JhbABggw5TV4IyhQeuXAwBAQEBAQEGk3eBZYVqBAICgQ4XAQYBAQEBODmEBAEBBDocGBsIAxgJJQ8FJQMHLYg9vmcYhXqKExaENQWWJYcJgWaYACsvgkoBAQE Received: from ppp121-44-56-240.lns20.syd6.internode.on.net (HELO dastard) ([121.44.56.240]) by ipmail06.adl6.internode.on.net with ESMTP; 01 Oct 2014 05:30:47 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XZ3bK-000763-9N for xfs@oss.sgi.com; Wed, 01 Oct 2014 06:00:46 +1000 Date: Wed, 1 Oct 2014 06:00:46 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: Re: Why not move xfs infra-structure to "public" services Message-ID: <20140930200046.GQ4758@dastard> X-ASG-Orig-Subj: Re: Why not move xfs infra-structure to "public" services References: <20140930141857.GA2053@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140930141857.GA2053@localhost.localdomain> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1412107252 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10074 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Sep 30, 2014 at 11:18:57AM -0300, Carlos Maiolino wrote: > Hi guys, > > I'm sorry for this kind of "fancy" question from my side, but I'm wondering why > xfs project infra-structure (mailing list, git trees), does not use the "usual > public" services. I mean, does anyone thought about moving xfs mailing list to > vger.kernel.org, and the git trees to git.kernel.org? I'm already using git.kernel.org for my master XFS trees. The ones on oss.sgi.com are simply now downstream mirrors. There's still a few things I need to organise (e.g. where release tarballs are put) before we make the kernel.org trees the official source of XFS source code. We already have a linux-xfs@vger.kernel.org mailing list - we just don't use it. Again, more organisation stuff to do to switch over (i.e. forwarding from xfs@oss.sgi.com to the vger list) and then updating documentation everywhere and getting people to start using it. Cheers, Dave. -- Dave Chinner david@fromorbit.com From cmaiolino@redhat.com Tue Sep 30 15:13:08 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 5B1B47F90 for ; Tue, 30 Sep 2014 15:13:08 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 4975B30405F for ; Tue, 30 Sep 2014 13:13:05 -0700 (PDT) X-ASG-Debug-ID: 1412107980-04cbb07302699580001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id T9ZBNAZmQGP5lLyj (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 30 Sep 2014 13:13:00 -0700 (PDT) X-Barracuda-Envelope-From: cmaiolino@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8UKCpp4008346 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 30 Sep 2014 16:12:51 -0400 Received: from localhost.localdomain (ovpn-113-60.phx2.redhat.com [10.3.113.60]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8UKCkmu020616 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Tue, 30 Sep 2014 16:12:48 -0400 Date: Tue, 30 Sep 2014 17:12:45 -0300 From: Carlos Maiolino To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: Why not move xfs infra-structure to "public" services Message-ID: <20140930201245.GA3806@localhost.localdomain> X-ASG-Orig-Subj: Re: Why not move xfs infra-structure to "public" services Mail-Followup-To: Dave Chinner , xfs@oss.sgi.com References: <20140930141857.GA2053@localhost.localdomain> <20140930200046.GQ4758@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140930200046.GQ4758@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1412107980 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Thanks dave. Can I use your kernel.org tree from now then? Regarding the mailing list, let me know if you need some help On Wed, Oct 01, 2014 at 06:00:46AM +1000, Dave Chinner wrote: > On Tue, Sep 30, 2014 at 11:18:57AM -0300, Carlos Maiolino wrote: > > Hi guys, > > > > I'm sorry for this kind of "fancy" question from my side, but I'm wondering why > > xfs project infra-structure (mailing list, git trees), does not use the "usual > > public" services. I mean, does anyone thought about moving xfs mailing list to > > vger.kernel.org, and the git trees to git.kernel.org? > > I'm already using git.kernel.org for my master XFS trees. The ones > on oss.sgi.com are simply now downstream mirrors. There's still a > few things I need to organise (e.g. where release tarballs are put) > before we make the kernel.org trees the official source of XFS > source code. > > We already have a linux-xfs@vger.kernel.org mailing list - we just > don't use it. Again, more organisation stuff to do to switch over > (i.e. forwarding from xfs@oss.sgi.com to the vger list) and then > updating documentation everywhere and getting people to start using > it. > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs -- Carlos From david@fromorbit.com Tue Sep 30 15:42:46 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 2F6247F94 for ; Tue, 30 Sep 2014 15:42:46 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id AEDB0AC009 for ; Tue, 30 Sep 2014 13:42:45 -0700 (PDT) X-ASG-Debug-ID: 1412109763-04cb6c50e560d100001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id yHrqtn4fqAnyZNHr for ; Tue, 30 Sep 2014 13:42:43 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AkYwALsUK1R5LDjwPGdsb2JhbABggw5TV4IyhQeGLKgwDAEBAQEBAQaTd4FlhWoEAgKBDhcBBgEBAQE4OYQEAQEEOhwzCAMYCSUPBSUDBy2IPb5zGIV6ihMWhDUFliWHCYFmmAArL4JKAQEB Received: from ppp121-44-56-240.lns20.syd6.internode.on.net (HELO dastard) ([121.44.56.240]) by ipmail06.adl6.internode.on.net with ESMTP; 01 Oct 2014 06:12:43 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XZ4Ft-0007Dz-D9 for xfs@oss.sgi.com; Wed, 01 Oct 2014 06:42:41 +1000 Date: Wed, 1 Oct 2014 06:42:41 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: Re: Why not move xfs infra-structure to "public" services Message-ID: <20140930204241.GR4758@dastard> X-ASG-Orig-Subj: Re: Why not move xfs infra-structure to "public" services References: <20140930141857.GA2053@localhost.localdomain> <20140930200046.GQ4758@dastard> <20140930201245.GA3806@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140930201245.GA3806@localhost.localdomain> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1412109763 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10074 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Sep 30, 2014 at 05:12:45PM -0300, Carlos Maiolino wrote: > Thanks dave. > > Can I use your kernel.org tree from now then? Sure - it's already the tree that is included into the linux-next builds and the tree I ask linus to pull from... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Tue Sep 30 17:13:58 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id CDBF67F86 for ; Tue, 30 Sep 2014 17:13:57 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 4DEC4AC006 for ; Tue, 30 Sep 2014 15:13:54 -0700 (PDT) X-ASG-Debug-ID: 1412115228-04cb6c50e66108d0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id DIraZkiRKGAmTDuQ for ; Tue, 30 Sep 2014 15:13:49 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjNXAEcqK1R5LDjwPGdsb2JhbABggw6IY65oAQUGlVyFagICAQECgRMXAQYBAQEBODmEAwEBAQMBJxMcKAsIAxUDCSUPBSUDBy2INge+YRiFeooTFoQ1BZ0umWYrL4JKAQEB Received: from ppp121-44-56-240.lns20.syd6.internode.on.net (HELO dastard) ([121.44.56.240]) by ipmail06.adl6.internode.on.net with ESMTP; 01 Oct 2014 07:43:08 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XZ5fN-0007de-HY for xfs@oss.sgi.com; Wed, 01 Oct 2014 08:13:05 +1000 Date: Wed, 1 Oct 2014 08:13:05 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: Re: [PATCH 2/2] xfs: only set extent size hint when asked Message-ID: <20140930221305.GS4758@dastard> X-ASG-Orig-Subj: Re: [PATCH 2/2] xfs: only set extent size hint when asked References: <1412041565-18873-1-git-send-email-david@fromorbit.com> <1412041565-18873-3-git-send-email-david@fromorbit.com> <20140930055829.GB15186@teal.hq.k1024.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140930055829.GB15186@teal.hq.k1024.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1412115228 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10076 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Sep 30, 2014 at 07:58:29AM +0200, Iustin Pop wrote: > On Tue, Sep 30, 2014 at 11:46:05AM +1000, Dave Chinner wrote: > > From: Dave Chinner > > > > Currently the extent size hint is set unconditionally in > > xfs_ioctl_setattr(), even when the FSX_EXTSIZE flag is not set. This > > means we can set values from uninitialised stack variables. Hence > > only set the extent size hint from userspace when both the mask > > falg is set and the inode has the XFS_DIFLAG_EXTSIZE flag set to > > indicate that we should have an extent size hint set on the inode. > > > > Signed-off-by: Dave Chinner > > --- > > fs/xfs/xfs_ioctl.c | 16 ++++++++++++++-- > > 1 file changed, 14 insertions(+), 2 deletions(-) > > > > diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c > > index 87c3bd1..24c926b 100644 > > --- a/fs/xfs/xfs_ioctl.c > > +++ b/fs/xfs/xfs_ioctl.c > > @@ -1231,13 +1231,25 @@ xfs_ioctl_setattr( > > > > } > > > > - if (mask & FSX_EXTSIZE) > > - ip->i_d.di_extsize = fa->fsx_extsize >> mp->m_sb.sb_blocklog; > > if (mask & FSX_XFLAGS) { > > xfs_set_diflags(ip, fa->fsx_xflags); > > xfs_diflags_to_linux(ip); > > } > > > > + /* > > + * Only set the extent size hint if we've already determined that the > > + * extent size hint should be set on the inode. If no extent size flags > > + * are set on the inode then unconditionally clear the extent size hint. > > + */ > > + if (mask & FSX_EXTSIZE) { > > + int extsize = 0; > > + > > + if (ip->i_d.di_flags & > > + (XFS_DIFLAG_EXTSIZE | XFS_DIFLAG_EXTSZINHERIT)) > > + extsize = fa->fsx_extsize >> mp->m_sb.sb_blocklog; > > + ip->i_d.di_extsize = extsize; > > Quick question: this sounds sane, but it will have the following effect > (if I understand things correctly): updating other flags on the inode > (e.g. XFS_XFLAG_NOATIME) might change the recorded extent size. That's no different to what happens before this patch. As I said in the cover note, I'm not attempting to fix those problem with these patches. Besides, you're still thinking that you can just call XFS_IOC_SETXATTR without a preceeding XFS_IOC_GETXATTR call. That's just broken - if applications use getxattr/setxattr correctly then this isn't an issue. i.e. do this: ioctl(XFS_IOC_GETXATTR, &fsx) fsx.fsx_xflags |= XFS_XFLAG_NOATIME; ioctl(XFS_IOC_SETXATTR, &fsx) and the problem you allude to does not occur because it will set the extent size to the same value as it currently has. > True, it > will correct the size if not appropriate and it will have a noop impact, > but still it will be an unrelated inode change. Would it make sense to > document this in the xfsctl man page then? There's no point in documenting what *might* happen if you abuse the interface in ways it was not intended to be used. Cheers, Dave. -- Dave Chinner david@fromorbit.com From robin.listas@gmail.com Tue Sep 30 17:27:47 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B76637F6F for ; Tue, 30 Sep 2014 17:27:47 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 35546AC00C for ; Tue, 30 Sep 2014 15:27:47 -0700 (PDT) X-ASG-Debug-ID: 1412116055-04cb6c50e6611090001-NocioJ Received: from mail-wi0-f171.google.com (mail-wi0-f171.google.com [209.85.212.171]) by cuda.sgi.com with ESMTP id dgZKAhIiuqmiixZm (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Tue, 30 Sep 2014 15:27:36 -0700 (PDT) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.212.171 X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.171] Received: by mail-wi0-f171.google.com with SMTP id ho1so110586wib.4 for ; Tue, 30 Sep 2014 15:27:35 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.171] X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.171] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:subject:in-reply-to:message-id:references :user-agent:mime-version:content-type; bh=zauITOLEHszyYZrab+Y8tFiYDNkaXJHLvxckV/Vp0OM=; b=W6M5uNjvnONvv0CNOMf++DvbshrDrsM2I16bQKwKyYVRFEim1snpfljQ07hyK2/wGK tFFse4O59toY0/fRGjoEw0wQhwS0rJBXYM6OiFmEcH7jv208EyScNy+SZJAfI4B2Eidl uI8Jod0as8k3z5jTFw0uaOiu2D3wcvyVlNqVgnCCxsXrV33CeCh8nh3tMZHQd7DFNrPp qZUjEGroqY6Jy67r57uNofTpr+jvJ7r12VfvM1HKNy3MZNgaHL7D4cPpK/cbzYYZ7lXk 23ca43J7t64OyBJOR9AIEQtKFZ7kIVhPHFo68Zp5j+cTajjQrtCeTtqDH5JHiwqJKK3t px8g== X-Received: by 10.180.206.230 with SMTP id lr6mr9246622wic.82.1412116055336; Tue, 30 Sep 2014 15:27:35 -0700 (PDT) Received: from minas-tirith.valinor (177.Red-79-159-63.staticIP.rima-tde.net. [79.159.63.177]) by mx.google.com with ESMTPSA id ll20sm16557825wic.14.2014.09.30.15.27.34 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 30 Sep 2014 15:27:34 -0700 (PDT) Sender: Carlos Robinson Received: from localhost (localhost [127.0.0.1]) by minas-tirith.valinor (Postfix) with ESMTP id 68289182453 for ; Wed, 1 Oct 2014 00:27:30 +0200 (CEST) Date: Wed, 1 Oct 2014 00:27:20 +0200 (CEST) From: "Carlos E. R." X-X-Sender: cer@minas-tirith.valinor To: XFS mailing list Subject: Happened again, 20140930 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. In-Reply-To: X-ASG-Orig-Subj: Happened again, 20140930 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: References: User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII X-Barracuda-Connect: mail-wi0-f171.google.com[209.85.212.171] X-Barracuda-Start-Time: 1412116056 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10077 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 > Subject: Subject : Happened again, > 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs > reformatting to correct issue. > Date: Mon, 11 Aug 2014 16:23:01 +0200 (CEST) > Happened again, I'm on middle of recovery procedures, and using my laptop > to post. And again. Well, after I recover the system I'm going to migrate my /home to a small ext4 partition, leaving Documents and the big directories in the current xfs home, renamed to something else. I hope this way to avoid the crashes and corruption on restore from hibernation. SUSE and openSUSE (12 and 13.2) are switching to use, on new installs by default, btrfs for their root filesystem, and xfs for home. I hope that this will cause more crashes on laptops on return from hibernation, producing more reports, and finally solving the root cause of this. Or perhaps it does not happen on 13.2, and I'm the only one left having the issue... Anyway, as I'm using 13.1, and will be for some time, the solution for me is to move the core of /home to ext4, at least temporarily. If someone wants me to get some data from the partition, I'm willing. I made a full 'dd' of it before attempting mount or repair on it (still pending), it will be possible for some days or more. Time permitting. :-) - -- Cheers Carlos E. R. (from 13.1 x86_64 "Bottle" (Minas Tirith)) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iF4EAREIAAYFAlQrLlIACgkQja8UbcUWM1z5nAD8DSoMv0LXUZQSbDcuVpmpH96g zSnNcVKFRuZdBp6WY6gA/j9LzOmEy0a5MD5h++wnkKLk2z9RsnuJVc6PYW4RLyG8 =rZgI -----END PGP SIGNATURE----- From david@fromorbit.com Tue Sep 30 19:45:24 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 4019D7F88 for ; Tue, 30 Sep 2014 19:45:24 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 2F128304062 for ; Tue, 30 Sep 2014 17:45:21 -0700 (PDT) X-ASG-Debug-ID: 1412124318-04cbb073016a3180001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id vsZ3MbeenD6TMUsn for ; Tue, 30 Sep 2014 17:45:19 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ar42AGxNK1R5LDjwPGdsb2JhbABggw6IY65rAQuVXIVqBAICgQwXAQYBAQEBODmEAwEBAQQ6HCMQCAMUAwEJGgsPBSUDBwwOE4g9vmQYGIV6hk+DPQcGhEUFnS6MSosTDhAWgVUrL4JKAQEB Received: from ppp121-44-56-240.lns20.syd6.internode.on.net (HELO dastard) ([121.44.56.240]) by ipmail06.adl6.internode.on.net with ESMTP; 01 Oct 2014 10:15:17 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XZ82c-0007xM-Pi; Wed, 01 Oct 2014 10:45:14 +1000 Date: Wed, 1 Oct 2014 10:45:14 +1000 From: Dave Chinner To: "Carlos E. R." Cc: XFS mailing list Subject: Re: Happened again, 20140930 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: <20141001004514.GH24490@dastard> X-ASG-Orig-Subj: Re: Happened again, 20140930 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1412124318 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10080 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header On Wed, Oct 01, 2014 at 12:27:20AM +0200, Carlos E. R. wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > > > >Subject: Subject : Happened again, > > 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs > > reformatting to correct issue. > >Date: Mon, 11 Aug 2014 16:23:01 +0200 (CEST) > > >Happened again, I'm on middle of recovery procedures, and using my laptop > >to post. > > And again. We've already got the fix in our upstream repository: 8018ec0 xfs: mark all internal workqueues as freezable It's currently in linux-next, queued for the next merge window. You shoul dprobably talk to your distro about getting it backported. Cheers, Dave. -- Dave Chinner david@fromorbit.com From robin.listas@gmail.com Tue Sep 30 21:48:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 7E2F97F7C for ; Tue, 30 Sep 2014 21:48:51 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id F1CE2AC00D for ; Tue, 30 Sep 2014 19:48:50 -0700 (PDT) X-ASG-Debug-ID: 1412131725-04cb6c50e7618cb0001-NocioJ Received: from mail-wi0-f175.google.com (mail-wi0-f175.google.com [209.85.212.175]) by cuda.sgi.com with ESMTP id 51S6Pa4NMwBbenFz (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Tue, 30 Sep 2014 19:48:46 -0700 (PDT) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.212.175 X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.175] Received: by mail-wi0-f175.google.com with SMTP id d1so472859wiv.14 for ; Tue, 30 Sep 2014 19:48:45 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.175] X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.175] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:message-id:date:from:user-agent:mime-version:to:subject :references:in-reply-to:content-type:content-transfer-encoding; bh=/VdVxZQapffUKRslKc2VQyG56T+UKWLNzL0TkFj73+8=; b=pZFyhA9nl6mdLwmslcjpun61Vc+5i0nNeSnjthdpUOf8/TrjtcRY6FIHBViS0jZGs9 fyhv53KNKXFspV+O0hRBtRdd5RdFzIwO57VVN16tOrUYkmZ4VBYqIcWwWRyjztNwyIO2 Y7/R1IWfUgm7hfKjhLTr9Q2EiYMAxq6j1mWM+/ZrpGKo/ctzArZRWg/uOkKdLrfS9+e/ xNHBG6B/BHidAOjLUwi7ZwZqR/I5XYaLUTcGh1gTwECyMAGSmSQrP7MsxuvQu62wbv7U 8z7Sy6fc89Iq/Gr/CrMg6l2BGSs1Ww3Xiy66fG7QWgfeJpPdC+kgFWFUl0sjGPm6F0Rx d4WA== X-Received: by 10.180.84.193 with SMTP id b1mr10629209wiz.25.1412131725435; Tue, 30 Sep 2014 19:48:45 -0700 (PDT) Received: from [192.168.1.14] (177.Red-79-159-63.staticIP.rima-tde.net. [79.159.63.177]) by mx.google.com with ESMTPSA id ul1sm21090988wjc.9.2014.09.30.19.48.44 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 30 Sep 2014 19:48:44 -0700 (PDT) Sender: Carlos Robinson Message-ID: <542B6B8A.2060309@opensuse.org> Date: Wed, 01 Oct 2014 04:48:42 +0200 From: "Carlos E. R." User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.0 MIME-Version: 1.0 To: XFS mailing list Subject: Re: Happened again, 20140930 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. References: <20141001004514.GH24490@dastard> X-ASG-Orig-Subj: Re: Happened again, 20140930 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. In-Reply-To: <20141001004514.GH24490@dastard> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail-wi0-f175.google.com[209.85.212.175] X-Barracuda-Start-Time: 1412131726 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10082 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On 2014-10-01 02:45, Dave Chinner wrote: > On Wed, Oct 01, 2014 at 12:27:20AM +0200, Carlos E. R. wrote: > We've already got the fix in our upstream repository: > > 8018ec0 xfs: mark all internal workqueues as freezable > > It's currently in linux-next, queued for the next merge window. You > shoul dprobably talk to your distro about getting it backported. Wow, thanks. I'll tell them. Question: where does it apply, kernel, xfsprogs? They will know, but I don't, and I need that info for the bugzilla "component" field ;-) -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" (Elessar)) From sandeen@sandeen.net Tue Sep 30 22:05:01 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B08517F7C for ; Tue, 30 Sep 2014 22:05:01 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 5B827AC00A for ; Tue, 30 Sep 2014 20:05:01 -0700 (PDT) X-ASG-Debug-ID: 1412132694-04bdf003a269cb10001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id 5thb7JkyvNnlo42x for ; Tue, 30 Sep 2014 20:04:54 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id E6FCF6567FBA; Tue, 30 Sep 2014 22:04:53 -0500 (CDT) Message-ID: <542B6F55.3090409@sandeen.net> Date: Tue, 30 Sep 2014 22:04:53 -0500 From: Eric Sandeen MIME-Version: 1.0 To: "Carlos E. R." , XFS mailing list Subject: Re: Happened again, 20140930 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. References: <20141001004514.GH24490@dastard> <542B6B8A.2060309@opensuse.org> X-ASG-Orig-Subj: Re: Happened again, 20140930 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. In-Reply-To: <542B6B8A.2060309@opensuse.org> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1412132694 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.10083 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 9/30/14 9:48 PM, Carlos E. R. wrote: > On 2014-10-01 02:45, Dave Chinner wrote: >> On Wed, Oct 01, 2014 at 12:27:20AM +0200, Carlos E. R. wrote: > >> We've already got the fix in our upstream repository: >> >> 8018ec0 xfs: mark all internal workqueues as freezable >> >> It's currently in linux-next, queued for the next merge window. You >> shoul dprobably talk to your distro about getting it backported. > > Wow, thanks. I'll tell them. > > Question: where does it apply, kernel, xfsprogs? They will know, but I don't, and I need that info for the bugzilla "component" field ;-) > kernel -Eric