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>
This commit is contained in:
Tao Ma 2009-08-18 11:21:00 +08:00 • committed by Joel Becker
commit c732eb16bf