From: Christoph Hellwig <hch@infradead.org>
To: Dave Chinner <david@fromorbit.com>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 5/8] xfs: consume iodone callback items on buffers as they are processed
Date: Tue, 30 Nov 2010 15:24:00 -0500 [thread overview]
Message-ID: <20101130202400.GA5860@infradead.org> (raw)
In-Reply-To: <1290993152-20999-6-git-send-email-david@fromorbit.com>
On Mon, Nov 29, 2010 at 12:12:29PM +1100, Dave Chinner wrote:
> From: Dave Chinner <dchinner@redhat.com>
>
> To allow buffer iodone callbacks to consume multiple items off the
> callback list, first we need to convert the xfs_buf_do_callbacks()
> to consume items and always pull the next item from the head of the
> list.
>
> The means the item list walk is never dependent on knowing the
> next item on the list and hence allows callbacks to remove itesm
> from the list as well. This allows callbacks to do bulk operations
> by scanning the list for identical callbacks, consuming them all
> and then processing them in bulk, negating the need for multiple
> callbacks of that type.
>
> Signed-off-by: Dave Chinner <dchinner@redhat.com>
Looks good,
Reviewed-by: Christoph Hellwig <hch@lst.de>
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next prev parent reply other threads:[~2010-11-30 20:22 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-29 1:12 [PATCH 0/8] xfs: AIL lock contention reduction V2 Dave Chinner
2010-11-29 1:12 ` [PATCH 1/8] xfs: Pull EFI/EFD handling out from under the AIL lock Dave Chinner
2010-11-30 20:17 ` Christoph Hellwig
2010-12-02 1:28 ` Dave Chinner
2010-12-02 11:38 ` Christoph Hellwig
2010-12-03 5:24 ` Dave Chinner
2010-11-29 1:12 ` [PATCH 2/8] xfs: clean up xfs_ail_delete() Dave Chinner
2010-11-30 20:19 ` Christoph Hellwig
2010-11-29 1:12 ` [PATCH 3/8] xfs: bulk AIL insertion during transaction commit Dave Chinner
2010-11-30 22:40 ` Christoph Hellwig
2010-12-02 1:32 ` Dave Chinner
2010-11-29 1:12 ` [PATCH 4/8] xfs: reduce the number of AIL push wakeups Dave Chinner
2010-11-30 20:19 ` Christoph Hellwig
2010-11-29 1:12 ` [PATCH 5/8] xfs: consume iodone callback items on buffers as they are processed Dave Chinner
2010-11-30 20:24 ` Christoph Hellwig [this message]
2010-11-29 1:12 ` [PATCH 6/8] xfs: remove all the inodes on a buffer from the AIL in bulk Dave Chinner
2010-12-06 14:33 ` Christoph Hellwig
2010-12-07 3:44 ` Dave Chinner
2010-12-07 7:39 ` Christoph Hellwig
2010-11-29 1:12 ` [PATCH 8/8] xfs: use AIL bulk delete function to implement single delete Dave Chinner
2010-12-06 14:37 ` Christoph Hellwig
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