tree 461e5d6cc255c400acac69dd968fae935a9c073f
parent e73a819db9c2d6c4065b7cab7374709b6939e8f1
author Tao Ma <tao.ma@oracle.com> 1250565889 +0800
committer Joel Becker <joel.becker@oracle.com> 1253675373 -0700

ocfs2: Add support of decrementing refcount for delete.

    Given a physical cpos and length, decrement the refcount
in the tree. If the refcount for any portion of the extent goes
to zero, that portion is queued for freeing.

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