linux-ext4 - Re: [PATCH 1/2] EXT4: Punch Hole Optimizations: Skip un-needed extent lookup

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Message-ID: <20110718032256.GB14869@thunk.org>
Date:	Sun, 17 Jul 2011 23:22:56 -0400
From:	Ted Ts'o <tytso@....edu>
To:	Allison Henderson <achender@...ux.vnet.ibm.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH 1/2] EXT4: Punch Hole Optimizations: Skip un-needed
 extent lookup

On Mon, Jun 27, 2011 at 03:49:50PM -0700, Allison Henderson wrote:
> This patch optimizes the punch hole operation by skipping the
> tree walking code that is used by truncate.  Since punch hole
> is done through map blocks, the path to the extent is already
> known in this function, so we do not need to look it up again.
> 
> Signed-off-by: Allison Henderson <achender@...ux.vnet.ibm.com>

Thanks, added to the ext4 tree.

					- Ted
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