From: Miao Xie <miaox@cn.fujitsu.com>
Date: Thu, 1 Nov 2012 07:34:54 +0000 (+0000)
Subject: Btrfs: fix unprotected extent map operation when logging file extents
X-Git-Tag: v3.8-rc1~71^2~92
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bbe1426764e5dfaa57e7b12cc954acdb3fb7f94b;p=pandora-kernel.git

Btrfs: fix unprotected extent map operation when logging file extents

We forget to protect the modified_extents list, fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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