From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail137.messagelabs.com (mail137.messagelabs.com [216.82.249.19]) by kanga.kvack.org (Postfix) with ESMTP id 285EB6B003D for ; Thu, 2 Apr 2009 05:00:14 -0400 (EDT) Date: Thu, 2 Apr 2009 11:00:09 +0200 From: Nick Piggin Subject: Re: [patch] mm: close page_mkwrite races Message-ID: <20090402090009.GA22256@wotan.suse.de> References: <20090330135307.GP31000@wotan.suse.de> <20090330135613.GQ31000@wotan.suse.de> <20090401160241.ec2f4573.akpm@linux-foundation.org> <1238628811.18376.4.camel@heimdal.trondhjem.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1238628811.18376.4.camel@heimdal.trondhjem.org> Sender: owner-linux-mm@kvack.org To: Trond Myklebust Cc: Andrew Morton , Sage Weil , linux-fsdevel@vger.kernel.org, linux-mm@kvack.org List-ID: On Wed, Apr 01, 2009 at 07:33:31PM -0400, Trond Myklebust wrote: > On Wed, 2009-04-01 at 16:02 -0700, Andrew Morton wrote: > > What is "the problem"? Can we get "the problem"'s description included > > in the changelog? > > > > The patch is fairly ugly, somewhat costly and makes things (even) more > > complex. Sigh. > > The problem is that currently, pages can be marked as dirty after they > have been written out, or even during writeout. > > IOW: the filesystem and the mm no longer agree on the state of the page, > which again triggers issues such as > http://bugzilla.kernel.org/show_bug.cgi?id=12913 Thanks, that would go nicely at the top of the changelog. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org