kernel/futex/core.c

437  * @hb:		the hash bucket the futex_q's reside in
440  * Must be called with the hb lock held.
442 struct futex_q *futex_top_waiter(struct futex_hash_bucket *hb, union futex_key *key)
446 	plist_for_each_entry(this, &hb->chain, list) {
514 	struct futex_hash_bucket *hb;
520 	hb = container_of(q->lock_ptr, struct futex_hash_bucket, lock);
521 	plist_del(&q->list, &hb->chain);
522 	futex_hb_waiters_dec(hb);
527 	__acquires(&hb->lock)
529 	struct futex_hash_bucket *hb;
531 	hb = futex_hash(&q->key);
541 	futex_hb_waiters_inc(hb); /* implies smp_mb(); (A) */
543 	q->lock_ptr = &hb->lock;
545 	spin_lock(&hb->lock);
546 	return hb;
549 void futex_q_unlock(struct futex_hash_bucket *hb)
550 	__releases(&hb->lock)
552 	spin_unlock(&hb->lock);
553 	futex_hb_waiters_dec(hb);
556 void __futex_queue(struct futex_q *q, struct futex_hash_bucket *hb)
571 	plist_add(&q->list, &hb->chain);
972 	struct futex_hash_bucket *hb;
985 		hb = futex_hash(&key);
1005 		spin_lock(&hb->lock);
1015 			spin_unlock(&hb->lock);
1027 		spin_unlock(&hb->lock);