ocfs2: Improve rename locking

ocfs2_rename() was being too aggressive with the rename lock - we only need
it for certain forms of directory rename.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>

diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index ab5a227..d5d808f 100644 (file)
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -997,7 +997,7 @@ static int ocfs2_rename(struct inode *old_dir,
         *
         * And that's why, just like the VFS, we need a file system
         * rename lock. */
-       if (old_dentry != new_dentry) {
+       if (old_dir != new_dir && S_ISDIR(old_inode->i_mode)) {
                status = ocfs2_rename_lock(osb);
                if (status < 0) {
                        mlog_errno(status);