tree faca76fab3c9a65ba8e7be3aa93d02e4ff53f0cf
parent 0129241e2b3b90ff83a8c774353e5612d84bd493
author Tao Ma <tao.ma@oracle.com> 1250567029 +0800
committer Joel Becker <joel.becker@oracle.com> 1253675384 -0700

ocfs2: Call refcount tree remove process properly.

Now with xattr refcount support, we need to check whether
we have xattr refcounted before we remove the refcount tree.

Now the mechanism is:
1) Check whether i_clusters == 0, if no, exit.
2) check whether we have i_xattr_loc in dinode. if yes, exit.
2) Check whether we have inline xattr stored outside, if yes, exit.
4) Remove the tree.

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