From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by nf-out-0910.google.com with SMTP id b2so71191nfe for ; Mon, 26 Feb 2007 22:26:28 -0800 (PST) Message-ID: <21d7e9970702262226v6fc70e06jd759c66c383630e1@mail.gmail.com> Date: Tue, 27 Feb 2007 17:26:28 +1100 From: "Dave Airlie" Subject: Re: [patch 0/6] fault vs truncate/invalidate race fix In-Reply-To: <20070226213204.14f8b584.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20070221023656.6306.246.sendpatchset@linux.site> <21d7e9970702262036h3575229ex3bf3cd4474a57068@mail.gmail.com> <20070226213204.14f8b584.akpm@linux-foundation.org> Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: npiggin@suse.de, linux-mm@kvack.org, linux-kernel@vger.kernel.org, benh@kernel.crashing.org List-ID: On 2/27/07, Andrew Morton wrote: > > On Tue, 27 Feb 2007 15:36:03 +1100 "Dave Airlie" wrote: > > > > > > I've also got rid of the horrible populate API, and integrated nonlinear pages > > > properly with the page fault path. > > > > > > Downside is that this adds one more vector through which the buffered write > > > deadlock can occur. However this is just a very tiny one (pte being unmapped > > > for reclaim), compared to all the other ways that deadlock can occur (unmap, > > > reclaim, truncate, invalidate). I doubt it will be noticable. At any rate, it > > > is better than data corruption. > > > > > > I hope these can get merged (at least into -mm) soon. > > > > Have these been put into mm? > > Not yet - I need to get back on the correct continent, review the code, > stuff like that. It still hurts that this work makes the write() deadlock > harder to hit, and we haven't worked out how to fix that. > > > can I expect them in the next -mm so I > > can start merging up the drm memory manager code to my -mm tree.. > > What is the linkage between these patches and DRM? > the new fault hander made the memory manager code a lot cleaner and very less hacky in a lot of cases. so I'd rather merge the clean code than have to fight with the current code... Dave. -- 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