Ocfs2: Should ocfs2 support fiemap for S_IFDIR inode?

Let userspace have a chance to get the extent info of a
directory just like extN did.

Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index f010b22..0b9f35e 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -2326,4 +2326,5 @@
 	.getxattr	= generic_getxattr,
 	.listxattr	= ocfs2_listxattr,
 	.removexattr	= generic_removexattr,
+	.fiemap         = ocfs2_fiemap,
 };