LB_LOCK_MASK
if ((le->le_mask & LB_LOCK_MASK) == 0)
le.le_mask = (eventtype & LB_EVENT_MASK) | (locktype & LB_LOCK_MASK);
(name->mask & LB_LOCK_MASK) != locktype)
type = mask & LB_LOCK_MASK;
if (!xflag && (lb->lb_flags & LB_LOCK_MASK) != type)