CEPH_LOCK_FCNTL
if (req->r_args.filelock_change.rule == CEPH_LOCK_FCNTL)
err = ceph_lock_message(CEPH_LOCK_FCNTL, op, inode, lock_cmd, wait, fl);
ceph_lock_message(CEPH_LOCK_FCNTL, op, inode,