From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with ESMTP id 967AC6B003D for ; Wed, 29 Apr 2009 11:32:20 -0400 (EDT) Date: Wed, 29 Apr 2009 08:27:33 -0700 From: Andrew Morton Subject: Re: [patch] mm: close page_mkwrite races (try 3) Message-Id: <20090429082733.f69b45c1.akpm@linux-foundation.org> In-Reply-To: <1241008762.6336.5.camel@heimdal.trondhjem.org> References: <20090414071152.GC23528@wotan.suse.de> <20090415082507.GA23674@wotan.suse.de> <20090415183847.d4fa1efb.akpm@linux-foundation.org> <20090428185739.GE6377@localdomain> <20090429071233.GC3398@wotan.suse.de> <20090429002418.fd9072a6.akpm@linux-foundation.org> <20090429074511.GD3398@wotan.suse.de> <1241008762.6336.5.camel@heimdal.trondhjem.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Trond Myklebust Cc: Nick Piggin , Ravikiran G Thirumalai , Sage Weil , linux-fsdevel@vger.kernel.org, Linux Memory Management List , stable@kernel.org List-ID: On Wed, 29 Apr 2009 08:39:22 -0400 Trond Myklebust wrote: > On Wed, 2009-04-29 at 09:45 +0200, Nick Piggin wrote: > > On Wed, Apr 29, 2009 at 12:24:18AM -0700, Andrew Morton wrote: > > > On Wed, 29 Apr 2009 09:12:33 +0200 Nick Piggin wrote: > > > > > > > I haven't got any prepared, but they should be a pretty trivial > > > > backport, provided we also backport c2ec175c39f62949438354f603f4aa170846aabb > > > > (which is probably a good idea anyway). > > > > > > > > However I will probably wait for a bit, given that the patch isn't upstream > > > > yet. > > > > > > err, I'd marked it as for-2.6.31. It looks like that was wrong? > > > > At the time I agreed because I didn't know the severity of the NFS > > bugs. So it is up to you and Trond / nfs guys I guess. > > > > The bug affects any serious use of shared mmap writes, so it's pretty > urgent to get it merged together with the NFS 3 liner. As I said in an > earlier email, I'm able to reproduce it at will within 1 minute or so of > using iozone with the right options. > > I also concur with the opinion that we should backport it to the stable > kernels as soon as possible. > ok... I don't know what the "NFS 3 liner" is, but I trust you'll take care of it. -- 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