ocfs2: Rename cleanups

ocfs2_rename() does direct manipulation of the dirent it's gotten back from
a directory search. Wrap this manipulation inside of a function so that we
can transparently change directory update behavior in the future. As an
added bonus, this gets rid of an ugly macro.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Reviewed-by: Joel Becker <joel.becker@oracle.com>
diff --git a/fs/ocfs2/dir.h b/fs/ocfs2/dir.h
index d03eaaa..ce48b90 100644
--- a/fs/ocfs2/dir.h
+++ b/fs/ocfs2/dir.h
@@ -50,6 +50,9 @@
 				 dentry->d_name.name, dentry->d_name.len,
 				 inode, blkno, parent_fe_bh, insert_bh);
 }
+int ocfs2_update_entry(struct inode *dir, handle_t *handle,
+		       struct buffer_head *de_bh, struct ocfs2_dir_entry *de,
+		       struct inode *new_entry_inode);
 
 int ocfs2_check_dir_for_entry(struct inode *dir,
 			      const char *name,