From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id q85BVmOu037264 for ; Wed, 5 Sep 2012 06:31:48 -0500 Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id fcaD39MqOrnKr7zV (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 05 Sep 2012 04:32:46 -0700 (PDT) Date: Wed, 5 Sep 2012 12:32:42 +0100 From: Mel Gorman Subject: Re: [PATCH 020/102] xfs: warn if direct reclaim tries to writeback pages Message-ID: <20120905113242.GL11266@suse.de> References: <1345698180-13612-1-git-send-email-david@fromorbit.com> <1345698180-13612-21-git-send-email-david@fromorbit.com> <20120827181742.GA13970@infradead.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20120827181742.GA13970@infradead.org> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: Christoph Hellwig Cc: xfs@oss.sgi.com On Mon, Aug 27, 2012 at 02:17:42PM -0400, Christoph Hellwig wrote: > On Thu, Aug 23, 2012 at 03:01:38PM +1000, Dave Chinner wrote: > > From: Mel Gorman > > > > Upstream commit: 94054fa3fca1fd78db02cb3d68d5627120f0a1d4 > > > > Direct reclaim should never writeback pages. For now, handle the > > situation and warn about it. Ultimately, this will be a BUG_ON. > > Is this actually the case on 3.0-stable? > No, it is not. AFAIK, 3.0-stable does not contain [ee72886d: mm: vmscan: do not writeback filesystem pages in direct reclaim] which is the absolute minimum required for commit [94054fa3: xfs: warn if direct reclaim tries to writeback pages] to make sense. -- Mel Gorman SUSE Labs _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs