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From: Andrew Morton <akpm@linux-foundation.org>
To: Dave Airlie <airlied@gmail.com>
Cc: npiggin@suse.de, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org, benh@kernel.crashing.org
Subject: Re: [patch 0/6] fault vs truncate/invalidate race fix
Date: Mon, 26 Feb 2007 21:32:04 -0800	[thread overview]
Message-ID: <20070226213204.14f8b584.akpm@linux-foundation.org> (raw)
In-Reply-To: <21d7e9970702262036h3575229ex3bf3cd4474a57068@mail.gmail.com>

> On Tue, 27 Feb 2007 15:36:03 +1100 "Dave Airlie" <airlied@gmail.com> 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?

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  reply	other threads:[~2007-02-27  5:32 UTC|newest]

Thread overview: 99+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-21  4:49 [patch 0/6] fault vs truncate/invalidate race fix Nick Piggin
2007-02-21  4:49 ` [patch 1/6] mm: debug check for the fault vs invalidate race Nick Piggin
2007-02-21  4:49 ` [patch 2/6] mm: simplify filemap_nopage Nick Piggin
2007-02-21  4:50 ` [patch 3/6] mm: fix fault vs invalidate race for linear mappings Nick Piggin
2007-03-07  6:36   ` Andrew Morton
2007-03-07  6:57     ` Nick Piggin
2007-03-07  7:08       ` Andrew Morton
2007-03-07  7:25         ` Nick Piggin
2007-02-21  4:50 ` [patch 4/6] mm: merge populate and nopage into fault (fixes nonlinear) Nick Piggin
2007-03-07  6:51   ` Andrew Morton
2007-03-07  7:08     ` Nick Piggin
2007-03-07  8:19       ` Nick Piggin
2007-03-07  8:27         ` Ingo Molnar
2007-03-07  8:35           ` Andrew Morton
2007-03-07  8:53             ` Ingo Molnar
2007-03-07  9:28               ` Nick Piggin
2007-03-07  9:44                 ` Bill Irwin
2007-03-07  9:49                   ` Nick Piggin
2007-03-07 10:02                     ` Nick Piggin
2007-03-12 23:01                       ` Blaisorblade
2007-03-13  1:19                         ` Nick Piggin
2007-03-17 12:17                           ` Blaisorblade
2007-03-18  2:50                             ` Nick Piggin
2007-03-18 13:09                               ` Jeff Dike
2007-03-19 12:04                               ` Bill Irwin
2007-03-19 20:44                               ` Blaisorblade
2007-03-20  6:00                                 ` Nick Piggin
2007-03-21 19:45                                   ` Blaisorblade
2007-03-08 12:39                   ` Blaisorblade
2007-03-07  9:29             ` Bill Irwin
2007-03-07  9:39               ` Andrew Morton
2007-03-07 10:09                 ` Bill Irwin
2007-03-07  8:38           ` Miklos Szeredi
2007-03-07  8:47             ` Andrew Morton
2007-03-07  8:51               ` Miklos Szeredi
2007-03-07  9:07                 ` Andrew Morton
2007-03-07  9:18                   ` Nick Piggin
2007-03-07  9:26                     ` Andrew Morton
2007-03-07  9:28                       ` Miklos Szeredi
2007-03-07  9:38                       ` Nick Piggin
2007-03-07  9:25                   ` Miklos Szeredi
2007-03-07  9:32                   ` Peter Zijlstra
2007-03-07  9:45                     ` Nick Piggin
2007-03-07 10:04                       ` Nick Piggin
2007-03-07 10:06                         ` Peter Zijlstra
2007-03-07 10:13                           ` Miklos Szeredi
2007-03-07 10:21                             ` Nick Piggin
2007-03-07 10:24                               ` Peter Zijlstra
2007-03-07 10:38                                 ` Nick Piggin
2007-03-07 10:47                                   ` Peter Zijlstra
2007-03-07 11:00                                     ` Nick Piggin
2007-03-07 11:48                                       ` Peter Zijlstra
2007-03-07 12:17                                         ` Nick Piggin
2007-03-07 12:41                                           ` Peter Zijlstra
2007-03-07 13:08                                             ` Nick Piggin
2007-03-07 13:19                                               ` Peter Zijlstra
2007-03-07 13:36                                                 ` Nick Piggin
2007-03-07 13:52                                                   ` Peter Zijlstra
2007-03-07 13:56                                                     ` Miklos Szeredi
2007-03-07 14:34                                                     ` Peter Zijlstra
2007-03-07 15:01                                                       ` Nick Piggin
2007-03-07 16:58                                                         ` [RFC][PATCH] mm: fix page_mkclean() vs non-linear vmas Peter Zijlstra
2007-03-07 18:00                                                           ` Linus Torvalds
2007-03-07 18:12                                                             ` Peter Zijlstra
2007-03-07 18:24                                                               ` Peter Zijlstra
2007-03-08 11:21                                                           ` Miklos Szeredi
2007-03-08 11:37                                                             ` Peter Zijlstra
2007-03-08 11:48                                                               ` Miklos Szeredi
2007-03-08 12:11                                                                 ` Peter Zijlstra
2007-03-08 12:19                                                                   ` Nick Piggin
2007-03-08 12:25                                                                     ` Miklos Szeredi
2007-03-08 11:58                                                             ` Nick Piggin
2007-03-08 12:09                                                               ` Miklos Szeredi
2007-03-07 15:10                                                     ` [patch 4/6] mm: merge populate and nopage into fault (fixes nonlinear) Jeff Dike
2007-03-07 13:53                                                   ` Miklos Szeredi
2007-03-07 14:50                                                     ` Nick Piggin
2007-03-07 12:22                                       ` Bill Irwin
2007-03-07 12:36                                         ` Nick Piggin
2007-03-07 10:30                             ` [rfc][patch 7/6] mm: merge page_mkwrite Nick Piggin
2007-03-07  8:59           ` [patch 4/6] mm: merge populate and nopage into fault (fixes nonlinear) Nick Piggin
2007-03-07  9:11             ` Nick Piggin
2007-03-07  9:22             ` Ingo Molnar
2007-03-07  9:32               ` Bill Irwin
2007-03-07  9:35                 ` Ingo Molnar
2007-03-07  9:50                   ` Bill Irwin
2007-03-07  9:52               ` Nick Piggin
2007-03-07  7:19     ` Bill Irwin
2007-03-07 10:05     ` Benjamin Herrenschmidt
2007-03-07 10:17       ` Nick Piggin
2007-03-07 10:46         ` Benjamin Herrenschmidt
2007-02-21  4:50 ` [patch 5/6] mm: merge nopfn into fault Nick Piggin
2007-02-21  5:13   ` Nick Piggin
2007-02-21  4:50 ` [patch 6/6] mm: remove legacy cruft Nick Piggin
2007-02-27  4:36 ` [patch 0/6] fault vs truncate/invalidate race fix Dave Airlie
2007-02-27  5:32   ` Andrew Morton [this message]
2007-02-27  6:26     ` Dave Airlie
2007-02-27  6:54       ` Benjamin Herrenschmidt
2007-03-18 23:13         ` Dave Airlie
2007-02-27  8:50     ` Nick Piggin

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