From: Dave Chinner <david@fromorbit.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 1/4] xfs: optimize AGFL refills
Date: Fri, 29 Apr 2011 10:41:53 +1000 [thread overview]
Message-ID: <20110429004153.GU12436@dastard> (raw)
In-Reply-To: <20110424190656.644950888@bombadil.infradead.org>
On Sun, Apr 24, 2011 at 03:06:14PM -0400, Christoph Hellwig wrote:
> While we need to make sure we do not reuse busy extents, there is no need
> to force out busy extents when moving them between the AGFL and the
> freespace btree as we still take care of that when doing the real allocation.
>
> To avoid the log force when just moving extents from the different free
> space tracking structures, move the busy search out of
> xfs_alloc_get_freelist into the callers that need it, and move the busy
> list insert from xfs_free_ag_extent which is used both by AGFL refills
> and real allocation to xfs_free_extent, which is only used by the latter.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> Reviewed-by: Alex Elder <aelder@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
--
Dave Chinner
david@fromorbit.com
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next prev parent reply other threads:[~2011-04-29 0:38 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-24 19:06 [PATCH 0/4] improved busy extent handling V5 Christoph Hellwig
2011-04-24 19:06 ` [PATCH 1/4] xfs: optimize AGFL refills Christoph Hellwig
2011-04-29 0:41 ` Dave Chinner [this message]
2011-04-24 19:06 ` [PATCH 2/4] xfs: do not immediately reuse busy extent ranges Christoph Hellwig
2011-04-29 0:58 ` Dave Chinner
2011-04-24 19:06 ` [PATCH 3/4] xfs: exact busy extent tracking Christoph Hellwig
2011-04-29 1:10 ` Dave Chinner
2011-04-24 19:06 ` [PATCH 4/4] xfs: reduce the number of pagb_lock roundtrips in xfs_alloc_clear_busy Christoph Hellwig
2011-04-27 16:56 ` Alex Elder
2011-04-27 19:45 ` Christoph Hellwig
2011-04-29 1:13 ` Dave Chinner
-- strict thread matches above, loose matches on Subject: below --
2011-04-18 6:59 [PATCH 0/4] improved busy extent handling V4 Christoph Hellwig
2011-04-18 6:59 ` [PATCH 1/4] xfs: optimize AGFL refills Christoph Hellwig
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