nilfs2 does not have problems with references to unlinked directories.
CC: KONISHI Ryusuke <konishi.ryusuke@lab.ntt.co.jp>
CC: linux-nilfs@vger.kernel.org
Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
        struct nilfs_transaction_info ti;
        int err;
 
-       dentry_unhash(dentry);
-
        err = nilfs_transaction_begin(dir->i_sb, &ti, 0);
        if (err)
                return err;
        struct nilfs_transaction_info ti;
        int err;
 
-       if (new_inode && S_ISDIR(new_inode->i_mode))
-               dentry_unhash(new_dentry);
-
        err = nilfs_transaction_begin(old_dir->i_sb, &ti, 1);
        if (unlikely(err))
                return err;