ocfs2: Provide the get_root_el() method to ocfs2_extent_tree_operations.

The root_el of an ocfs2_extent_tree needs to be calculated from
et->et_object.  Make it an operation on et->et_ops.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
1 file changed