From: Tao Ma <tao.ma@oracle.com>
Date: Tue, 18 Aug 2009 03:21:00 +0000 (+0800)
Subject: ocfs2: Add caching info for refcount tree.
X-Git-Tag: v2.6.32-rc1~173^2~39
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c732eb16bf07f9bfb7fa72b6868462471273bdbd;p=pandora-kernel.git

ocfs2: Add caching info for refcount tree.

refcount tree should use its own caching info so that when
we downconvert the refcount tree lock, we can drop all the
cached buffer head.

Signed-off-by: Tao Ma <tao.ma@oracle.com>
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