From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from digeo-nav01.digeo.com (digeo-nav01.digeo.com [192.168.1.233]) by packet.digeo.com (8.9.3+Sun/8.9.3) with SMTP id LAA03847 for ; Wed, 27 Nov 2002 11:36:07 -0800 (PST) Message-ID: <3DE51EA7.5C971354@digeo.com> Date: Wed, 27 Nov 2002 11:36:07 -0800 From: Andrew Morton MIME-Version: 1.0 Subject: Re: [PATCH] page walker bugfix (was: 2.5.49-mm2) References: <3DE48C4A.98979F0C@digeo.com> <20021127171017.H5263@nightmaster.csn.tu-chemnitz.de> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Ingo Oeser Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: Ingo Oeser wrote: > > Hi Andrew, > hi list readers, > > On Wed, Nov 27, 2002 at 01:11:38AM -0800, Andrew Morton wrote: > > .. Some code from Ingo Oeser to start using the expanded and cleaned up > > user pagetable walker code. This affects the st and sg drivers; I'm > > not sure of the testing status of this? > > The testing status is: None, but it compiles. > > The sg-driver maintainer has already said he does some testing > and the author of the previous code in st.c was positive about > using these features. That's why I've choosen these as my "victims". Yes, Doug Gilbert will help us out here. > I also found a locking bug in walk_user_pages() in case of OOM or > SIGBUS. Fixed by the attached patch. > Thanks. We'll need to be concentrating on the shared pagetable code for a while, and your patch overlaps with that. So I've swapped the applying order (you come second) and I'll probably break your stuff out separately for a while so Dave can generate clean patches. When mm3 emerges could you please check mm/mmap.c around here: vma = NULL; /* needed for out-label */ I may have misplaced that one... -- 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/