From: Robin Dong <sanbai@taobao.com>
Date: Thu, 28 Jul 2011 01:29:33 +0000 (-0400)
Subject: ext4: add action of moving index in ext4_ext_rm_idx for Punch Hole
X-Git-Tag: v3.1-rc1~90^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0e1147b001793593624e80b3c0a1790822b6baca;p=pandora-kernel.git

ext4: add action of moving index in ext4_ext_rm_idx for Punch Hole

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@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---

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