linux-ext4 - Re: [PATCH] ext4: add action of moving index in ext4_ext_rm

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Message-ID: <20110728013304.GC3133@thunk.org>
Date:	Wed, 27 Jul 2011 21:33:04 -0400
From:	Ted Ts'o <tytso@....edu>
To:	Robin Dong <hao.bigrat@...il.com>
Cc:	linux-ext4@...r.kernel.org, Robin Dong <sanbai@...bao.com>
Subject: Re: [PATCH] ext4: add action of moving index in ext4_ext_rm_idx
 for Punch Hole

On Tue, Jul 26, 2011 at 03:34:59PM +0800, Robin Dong wrote:
> From: Robin Dong <sanbai@...bao.com>
> 
> The old function ext4_ext_rm_idx is used only for truncate case because
> it just remove last index in extent-index-block. When punching hole,
> it usually needed to remove "middle" index, therefore we must move indexes
> which after it forward.
> 
> (I create a file with 1 depth extent tree and punch hole in the middle of it,
> the last index in index-block strangly gone, so I find out this bug)
> 
> Signed-off-by: Robin Dong <sanbai@...bao.com>

Thanks, added to the ext4 tree.

					- Ted
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