CEPH_LOCK_UNLOCK
BUG_ON(req->r_args.filelock_change.type == CEPH_LOCK_UNLOCK);
intr_req->r_args.filelock_change.type = CEPH_LOCK_UNLOCK;
lock_cmd = CEPH_LOCK_UNLOCK;
CEPH_LOCK_UNLOCK, 0, fl);
lock_cmd = CEPH_LOCK_UNLOCK;
inode, CEPH_LOCK_UNLOCK, 0, fl);
cephlock->type = CEPH_LOCK_UNLOCK;
if (operation != CEPH_MDS_OP_SETFILELOCK || cmd == CEPH_LOCK_UNLOCK)