From: Andrew Morton <akpm@linux-foundation.org>
To: Christoph Hellwig <hch@infradead.org>
Cc: linux-kernel@vger.kernel.org, Nick Piggin <npiggin@suse.de>
Subject: Re: 2.6.29 -mm merge plans
Date: Tue, 6 Jan 2009 15:11:31 -0800 [thread overview]
Message-ID: <20090106151131.b6c4ff0b.akpm@linux-foundation.org> (raw)
In-Reply-To: <20090106225744.GA10553@infradead.org>
(cc added)
On Tue, 6 Jan 2009 17:57:44 -0500
Christoph Hellwig <hch@infradead.org> wrote:
> On Mon, Jan 05, 2009 at 12:43:00AM -0800, Andrew Morton wrote:
> > fs-sys_sync-fix.patch
>
> I'm not sure this is a good idea. Concurrent syncs are a bad idea
> to start with and we should just synchronyze do_sync completely.
> sync_filesystems as one of the main components of do_sync already
> is synchronized in that way, and taking that to a higher level would
> get rid of all the worries about concurrent syncs.
Yes, single-threading sys_sync() would fix the problem which that patch
addresses.
However there are a lot of performance and correctness issues around
sys_sync()-versus-fsync(), etc for which such a simple fix won't be
acceptable.
next prev parent reply other threads:[~2009-01-06 23:12 UTC|newest]
Thread overview: 94+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-05 8:43 2.6.29 -mm merge plans Andrew Morton
2009-01-05 9:00 ` KOSAKI Motohiro
2009-01-05 9:07 ` Andrew Morton
2009-01-05 22:31 ` Ying Han
2009-01-05 22:34 ` Valdis.Kletnieks
2009-01-08 4:18 ` Ying Han
2009-01-08 4:41 ` KOSAKI Motohiro
2009-01-08 7:57 ` Ying Han
2009-01-08 8:31 ` KOSAKI Motohiro
2009-01-11 4:18 ` Valdis.Kletnieks
2009-01-12 4:18 ` Ying Han
2009-01-06 5:27 ` Valdis.Kletnieks
2009-01-06 5:41 ` Nick Piggin
2009-01-05 9:02 ` Sam Ravnborg
2009-01-05 9:12 ` Andrew Morton
2009-01-05 9:17 ` David Miller
2009-01-05 9:21 ` Ingo Molnar
2009-01-05 9:39 ` Sam Ravnborg
2009-01-05 10:10 ` Ingo Molnar
2009-01-05 10:36 ` David Miller
2009-01-05 12:32 ` Ingo Molnar
2009-01-05 10:11 ` Ingo Molnar
2009-01-05 10:37 ` David Miller
2009-01-05 9:40 ` Ryusuke Konishi
2009-01-06 13:30 ` Pekka Enberg
2009-01-07 3:26 ` Ryusuke Konishi
2009-01-07 7:58 ` Pekka Enberg
2009-01-07 14:17 ` Chris Mason
2009-01-05 11:34 ` Al Viro
2009-01-05 11:40 ` Stephen Rothwell
2008-10-06 6:14 ` Greg Ungerer
2009-01-05 12:17 ` Ingo Molnar
2009-01-05 17:38 ` KOSAKI Motohiro
2009-01-05 12:28 ` Nick Piggin
2009-01-12 22:06 ` Andrew Morton
2009-01-15 6:37 ` Nick Piggin
2009-01-06 9:46 ` Pavel Machek
2009-01-06 22:33 ` Folkert van Heusden
2009-01-06 22:38 ` Alan Cox
2009-01-06 22:57 ` Christoph Hellwig
2009-01-06 23:08 ` Andrew Morton
2009-01-07 1:05 ` Nick Piggin
2009-01-06 23:08 ` Andrew Morton
2009-01-06 23:22 ` Christoph Hellwig
2009-01-07 2:16 ` Dave Chinner
2009-01-08 15:50 ` Dmitri Monakhov
2009-01-06 23:11 ` Andrew Morton [this message]
2009-01-06 23:24 ` Christoph Hellwig
2009-01-07 1:14 ` Nick Piggin
2009-01-07 1:38 ` Andi Kleen
2009-01-07 1:49 ` Nick Piggin
2009-01-07 2:57 ` Andi Kleen
2009-01-07 3:28 ` Nick Piggin
2009-01-08 13:24 ` Pavel Machek
2009-01-10 15:07 ` Andi Kleen
2009-01-10 21:32 ` sync, reboot, and corrupting data [was Re: 2.6.29 -mm merge plans] Pavel Machek
2009-01-10 22:12 ` Andi Kleen
2009-01-10 22:26 ` Pavel Machek
2009-01-08 13:22 ` 2.6.29 -mm merge plans Pavel Machek
2009-01-06 23:13 ` Andrew Morton
2009-01-06 23:24 ` Christoph Hellwig
2009-01-06 23:38 ` Andrew Morton
2009-01-07 2:06 ` Nick Piggin
2009-01-07 2:16 ` Andrew Morton
2009-01-07 3:05 ` Nick Piggin
2009-01-07 4:16 ` Andrew Morton
2009-01-06 23:15 ` Andrew Morton
2009-01-06 23:25 ` Christoph Hellwig
2009-01-07 7:54 ` Christoph Hellwig
2009-01-07 7:59 ` Andrew Morton
2009-01-07 8:10 ` Christoph Hellwig
2009-01-06 23:17 ` Andrew Morton
2009-01-06 23:19 ` Christoph Hellwig
2009-01-06 23:26 ` Warren Turkal
2009-01-06 23:26 ` Warren Turkal
2009-01-12 3:19 ` Roman Zippel
2009-01-06 23:27 ` Diego E. 'Flameeyes' Pettenò
2009-01-06 23:31 ` Christoph Hellwig
2009-01-06 23:49 ` Harvey Harrison
2009-01-07 0:09 ` Diego E. 'Flameeyes' Pettenò
2009-01-07 0:16 ` Harvey Harrison
2009-01-12 4:21 ` Roman Zippel
2009-01-06 23:19 ` Andrew Morton
2009-01-08 19:11 ` Rodolfo Giometti
2009-01-12 20:23 ` Christoph Hellwig
2009-01-13 9:49 ` Rodolfo Giometti
2009-01-12 20:22 ` Christoph Hellwig
2009-01-13 9:47 ` Rodolfo Giometti
2009-01-06 23:21 ` Andrew Morton
2009-01-06 23:28 ` Andrew Morton
2009-01-07 2:21 ` Nick Piggin
2009-01-08 8:39 ` Miklos Szeredi
2009-01-15 6:45 ` Nick Piggin
2009-01-07 0:01 ` Dan Williams
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