From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Subject: Re: [stable] [2.6.27.stable][patch 0/6] page_mkwrite fixes Date: Tue, 12 May 2009 15:07:26 -0700 Message-ID: <20090512220726.GA16583@kroah.com> References: <20090512062346.554974013@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: stable@kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@vger.kernel.org To: npiggin@suse.de Return-path: Received: from kroah.org ([198.145.64.141]:59470 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751271AbZELWMv (ORCPT ); Tue, 12 May 2009 18:12:51 -0400 Content-Disposition: inline In-Reply-To: <20090512062346.554974013@suse.de> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Tue, May 12, 2009 at 04:23:46PM +1000, npiggin@suse.de wrote: > Hi stable team, > > This is the sequence of applicable fixes for 2.6.27.stable to solve > the page_mkwrite issues. The series solves 2 problems in the core APIs: > - the problem of incorrect return values (eg. causing SIGBUS when there is an > OOM or page invalidation). > - the problem of insufficient synchronisation between mm and filesystem, > which results in at least NFS being quite easily broken with mmap()ed > writes. > > And it also updates several filesystems to fix the issues on their side. > > I think it has been agreed to get these fixes into .stable kernels (they > are all upstream). > > One issue is that there are several filesystems (basically, any which > supply ->page_mkwrite) which could be broken but maybe have not had > anybody look at them yet (OCFS2, UBIFS maybe). Anyway, if fs maintainers > eventually do add any fixes here, it would be appreciated if you keep > .stable in mind as well. Thanks for the patch series, I've applied them all to the next .27-stable queue. greg k-h