From: liubo <liubo2009@cn.fujitsu.com>
Date: Sat, 8 Sep 2012 02:01:26 +0000 (-0600)
Subject: Btrfs: cleanup for unused ref cache stuff
X-Git-Tag: v3.7-rc1~71^2~60
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0647d6bd16c03c928a22d1b90c4c8684c5908f08;p=pandora-kernel.git

Btrfs: cleanup for unused ref cache stuff

As ref cache has been removed from btrfs, there is no user on
its lock and its check.

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
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