From: Dave Chinner <david@fromorbit.com>
To: Alex Elder <aelder@sgi.com>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 1/6] xfs: preallocation transactions do not need to be synchronous
Date: Sat, 26 Mar 2011 09:02:16 +1100 [thread overview]
Message-ID: <20110325220216.GN26611@dastard> (raw)
In-Reply-To: <1301086836.2537.679.camel@doink>
On Fri, Mar 25, 2011 at 04:00:36PM -0500, Alex Elder wrote:
> On Wed, 2011-03-23 at 17:14 +1100, Dave Chinner wrote:
> > From: Dave Chinner <dchinner@redhat.com>
> >
> > Preallocation and hole punch transactions are currently synchronous
> > and this is causing performance problems in some cases. The
> > transactions don't need to be synchronous as we don't need to
> > guarantee the preallocation is persistent on disk until a
> > fdatasync, fsync, sync operation occurs. If the file is opened
> > O_SYNC or O_DATASYNC, only then should the transaction be issued
> > synchronously.
>
> There's a minor (but important) bug in this. Other than that
> this looks good.
>
> Reviewed-by: Alex Elder <aelder@sgi.com>
Already fixed and reposted.
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
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next prev parent reply other threads:[~2011-03-25 21:59 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-23 6:14 xfs: outstanding patches for 2.6.39 Dave Chinner
2011-03-23 6:14 ` [PATCH 1/6] xfs: preallocation transactions do not need to be synchronous Dave Chinner
2011-03-24 17:18 ` brian.foster
2011-03-24 22:53 ` [PATCH V2] " Dave Chinner
2011-03-25 21:00 ` [PATCH 1/6] " Alex Elder
2011-03-25 22:02 ` Dave Chinner [this message]
2011-03-23 6:14 ` [PATCH 2/6] vmap: flush vmap aliases when mapping fails Dave Chinner
2011-03-25 21:00 ` Alex Elder
2011-03-23 6:14 ` [PATCH 3/6] xfs: introduce inode cluster buffer trylocks for xfs_iflush Dave Chinner
2011-03-25 21:00 ` Alex Elder
2011-03-23 6:14 ` [PATCH 4/6] xfs: xfs_trans_read_buf() should return an error on failure Dave Chinner
2011-03-23 11:53 ` Christoph Hellwig
2011-03-25 21:01 ` Alex Elder
2011-03-23 6:14 ` [PATCH 5/6] xfs: register the inode cache shrinker before quotachecks Dave Chinner
2011-03-23 21:24 ` Arkadiusz Miskiewicz
2011-03-25 12:56 ` Michael Weissenbacher
2011-03-25 23:08 ` Dave Chinner
2011-03-25 21:01 ` Alex Elder
2011-03-23 6:14 ` [PATCH 6/6] xfs: stop using the page cache to back the buffer cache Dave Chinner
2011-03-25 21:02 ` Alex Elder
2011-03-25 22:04 ` Dave Chinner
2011-03-23 7:01 ` xfs: outstanding patches for 2.6.39 Andi Kleen
2011-03-23 11:38 ` Dave Chinner
2011-03-23 16:05 ` Andi Kleen
2011-03-23 22:48 ` Dave Chinner
2011-03-23 11:18 ` Christoph Hellwig
2011-03-23 11:38 ` Dave Chinner
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