Btrfs: cleanup for unused ref cache stuff
authorliubo <liubo2009@cn.fujitsu.com>
Sat, 8 Sep 2012 02:01:26 +0000 (20:01 -0600)
committerChris Mason <chris.mason@fusionio.com>
Mon, 1 Oct 2012 19:19:17 +0000 (15:19 -0400)
commit0647d6bd16c03c928a22d1b90c4c8684c5908f08
tree8832783f58d853934a89b00682324dd30c8793b0
parent8407aa464331556e4f6784f974030b83fc7585ed
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>
fs/btrfs/ctree.h
fs/btrfs/disk-io.c