sleepq_sleepcnt
realexslp = sleepq_sleepcnt(&lk->lock_object, SQ_EXCLUSIVE_QUEUE);
sleepq_sleepcnt(&lk->lock_object,
realexslp = sleepq_sleepcnt(&lk->lock_object,
sleepq_sleepcnt(&sx->lock_object, SQ_EXCLUSIVE_QUEUE) != 0) {
u_int sleepq_sleepcnt(const void *wchan, int queue);