From: Alex Elder <aelder@sgi.com>
To: Dave Chinner <david@fromorbit.com>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 2/4] xfs: use unhashed buffers for size checks
Date: Fri, 10 Sep 2010 16:33:57 -0500 [thread overview]
Message-ID: <1284154437.2468.34.camel@doink> (raw)
In-Reply-To: <1283958778-28610-3-git-send-email-david@fromorbit.com>
On Thu, 2010-09-09 at 01:12 +1000, Dave Chinner wrote:
> From: Dave Chinner <dchinner@redhat.com>
>
> When we are checking we can access the last block of each device, we
> do not need to use hashed buffers as they will be tossed away
> immediately. Use unhashed buffers for size checks so that all IO
> prior to full in-memory structure initialisation does not use the
> buffer cache hashes.
This one also looks good, and again I agree with the
comments Christoph made. I'll look for your update.
Patch 3 in the series is good too; I'll look at the
last patch (the switch to rbtrees) over the weekend.
> Signed-off-by: Dave Chinner <dchinner@redhat.com>
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next prev parent reply other threads:[~2010-09-10 21:35 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-08 15:12 [RFC] [PATCH 0/4] Replace buffer cache hash with rbtrees Dave Chinner
2010-09-08 15:12 ` [PATCH 1/4] xfs: kill XBF_FS_MANAGED buffers Dave Chinner
2010-09-09 1:33 ` Christoph Hellwig
2010-09-10 3:10 ` Dave Chinner
2010-09-10 21:17 ` Alex Elder
2010-09-08 15:12 ` [PATCH 2/4] xfs: use unhashed buffers for size checks Dave Chinner
2010-09-09 1:38 ` Christoph Hellwig
2010-09-10 3:14 ` Dave Chinner
2010-09-10 21:33 ` Alex Elder [this message]
2010-09-08 15:12 ` [PATCH 3/4] xfs: remove buftarg hash for external devices Dave Chinner
2010-09-09 1:39 ` Christoph Hellwig
2010-09-08 15:12 ` [PATCH 4/4] xfs: convert buffer cache hash to rbtree Dave Chinner
2010-09-09 1:51 ` Christoph Hellwig
2010-09-10 3:22 ` Dave Chinner
2010-09-13 16:59 ` Alex Elder
2010-09-13 16:53 ` Alex Elder
2010-09-14 7:13 ` Dave Chinner
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