From: Alex Elder <aelder@sgi.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 3/5] xfs: exact busy extent tracking
Date: Tue, 29 Mar 2011 14:04:22 -0500 [thread overview]
Message-ID: <1301425462.3026.245.camel@doink> (raw)
In-Reply-To: <20110328210914.996696705@bombadil.infradead.org>
On Mon, 2011-03-28 at 17:06 -0400, Christoph Hellwig wrote:
> Update the extent tree in case we have to reuse a busy extent, so that it
> always is kept uptodate. This is done by replacing the busy list searches
> with a new xfs_alloc_busy_reuse helper, which updates the busy extent tree
> in case of a reuse. Also replace setting transactions to sync with forcing
> the log out in case we found a busy extent to reuse. This makes the code a
> lot more simple, and is required for discard support later on. While it
> will cause performance regressios with just this patch applied, the impact
> is more than mitigated by the next patch in the series.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
Looks good. xfs_alloc_busy_update_extent() is a better name
than xfs_alloc_buisy_try_reuse() was.
Reviewed-by: Alex Elder <aelder@sgi.com>
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next prev parent reply other threads:[~2011-03-29 19:01 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-28 21:06 [PATCH 0/5] improved busy extent handling Christoph Hellwig
2011-03-28 21:06 ` [PATCH 1/5] xfs: optimize AGFL refills Christoph Hellwig
2011-03-29 19:04 ` Alex Elder
2011-03-28 21:06 ` [PATCH 2/5] xfs: do not immediately reuse busy extent ranges Christoph Hellwig
2011-03-29 19:04 ` Alex Elder
2011-03-28 21:06 ` [PATCH 3/5] xfs: exact busy extent tracking Christoph Hellwig
2011-03-29 19:04 ` Alex Elder [this message]
2011-03-28 21:06 ` [PATCH 4/5] xfs: allow reusing busy extents where safe Christoph Hellwig
2011-03-29 19:04 ` Alex Elder
2011-03-31 8:30 ` Christoph Hellwig
2011-03-28 21:06 ` [PATCH 5/5] xfs: update busy extent tracing Christoph Hellwig
2011-03-29 19:04 ` Alex Elder
2011-03-29 19:04 ` [PATCH 0/5] improved busy extent handling Alex Elder
2011-03-30 10:14 ` Christoph Hellwig
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