From: Miao Xie <miaox@cn.fujitsu.com>
Date: Thu, 28 Mar 2013 08:12:15 +0000 (+0000)
Subject: Btrfs: fix wrong return value of btrfs_lookup_csum()
X-Git-Tag: v3.9-rc5~8^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=82d130ff390be67d980d8b6f39e921c0b1d8d8e0;p=pandora-kernel.git

Btrfs: fix wrong return value of btrfs_lookup_csum()

If we don't find the expected csum item, but find a csum item which is
adjacent to the specified extent, we should return -EFBIG, or we should
return -ENOENT. But btrfs_lookup_csum() return -EFBIG even the csum item
is not adjacent to the specified extent. Fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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