Received: with ECARTIS (v1.0.0; list xfs); Thu, 19 Jun 2008 20:36:20 -0700 (PDT) X-Spam-Checker-Version: SpamAssassin 3.3.0-r574664 (2007-09-11) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-2.2 required=5.0 tests=AWL,BAYES_00 autolearn=ham version=3.3.0-r574664 Received: from cuda.sgi.com (cuda1.sgi.com [192.48.168.28]) by oss.sgi.com (8.12.11.20060308/8.12.11/SuSE Linux 0.7) with ESMTP id m5K3aGUs032152 for ; Thu, 19 Jun 2008 20:36:16 -0700 X-ASG-Debug-ID: 1213933034-2585037b0000-NocioJ X-Barracuda-URL: http://cuda.sgi.com:80/cgi-bin/mark.cgi Received: from ipmail01.adl6.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id C4DD71230958 for ; Thu, 19 Jun 2008 20:37:15 -0700 (PDT) Received: from ipmail01.adl6.internode.on.net (ipmail01.adl6.internode.on.net [203.16.214.146]) by cuda.sgi.com with ESMTP id JsHB9fBywnJGq3sb for ; Thu, 19 Jun 2008 20:37:15 -0700 (PDT) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ApoEALC/Wkh5LG+u/2dsb2JhbACwHA X-IronPort-AV: E=Sophos;i="4.27,676,1204464600"; d="scan'208";a="130501893" Received: from ppp121-44-111-174.lns10.syd6.internode.on.net (HELO disturbed) ([121.44.111.174]) by ipmail01.adl6.internode.on.net with ESMTP; 20 Jun 2008 13:07:12 +0930 Received: from dave by disturbed with local (Exim 4.69) (envelope-from ) id 1K9XR0-00046p-Fm; Fri, 20 Jun 2008 13:37:10 +1000 Date: Fri, 20 Jun 2008 13:37:10 +1000 From: Dave Chinner To: Lachlan McIlroy Cc: Christoph Hellwig , xfs-dev , xfs-oss X-ASG-Orig-Subj: Re: [PATCH V2] Always reset btree cursor after an insert Subject: Re: [PATCH V2] Always reset btree cursor after an insert Message-ID: <20080620033710.GZ3700@disturbed> Mail-Followup-To: Lachlan McIlroy , Christoph Hellwig , xfs-dev , xfs-oss References: <4859F9EB.5050505@sgi.com> <20080619083544.GA19606@infradead.org> <485B0B04.80808@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <485B0B04.80808@sgi.com> User-Agent: Mutt/1.5.17+20080114 (2008-01-14) X-Barracuda-Connect: ipmail01.adl6.internode.on.net[203.16.214.146] X-Barracuda-Start-Time: 1213933035 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Virus-Scanned: by cuda.sgi.com at sgi.com X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using per-user scores of TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.1 tests= X-Barracuda-Spam-Report: Code version 3.1, rules version 3.1.53800 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Virus-Scanned: ClamAV 0.91.2/6021/Wed Feb 27 15:55:48 2008 on oss.sgi.com X-Virus-Status: Clean X-archive-position: 16445 X-ecartis-version: Ecartis v1.0.0 Sender: xfs-bounce@oss.sgi.com Errors-to: xfs-bounce@oss.sgi.com X-original-sender: david@fromorbit.com Precedence: bulk X-list: xfs On Fri, Jun 20, 2008 at 11:42:28AM +1000, Lachlan McIlroy wrote: > Christoph Hellwig wrote: >> On Thu, Jun 19, 2008 at 04:17:15PM +1000, Lachlan McIlroy wrote: >>> After a btree insert operation a cursor can be invalid due to block >>> splits and a maybe a new root block. We reset the cursor in >>> xfs_bmbt_insert() in the cases where we think we need to but it >>> isn't enough as we still see assertions. Just do what we do elsewhere >>> and reset the cursor unconditionally. Version 2 adds >>> XFS_WANT_CORRUPTED_GOTO checks throughout xfs_bmap.c and removes the >>> fix to revalidate the original cursor in xfs_bmbt_insert(). >> >> Can you commit the XFS_WANT_CORRUPTED_GOTO checks as a separate patch >> before the cursor reset? ACK from me for those hunks. >> > > Yeah, no problem, thanks. The rest of it looks ok as well, Lachlan. Cheers, Dave. -- Dave Chinner david@fromorbit.com