275 static inline void hb_waiters_inc(struct futex_hash_bucket *hb)  in hb_waiters_inc()  argument
278 	atomic_inc(&hb->waiters);  in hb_waiters_inc()
290 static inline void hb_waiters_dec(struct futex_hash_bucket *hb)  in hb_waiters_dec()  argument
293 	atomic_dec(&hb->waiters);  in hb_waiters_dec()
297 static inline int hb_waiters_pending(struct futex_hash_bucket *hb)  in hb_waiters_pending()  argument
300 	return atomic_read(&hb->waiters);  in hb_waiters_pending()
578 static struct futex_q *futex_top_waiter(struct futex_hash_bucket *hb,  in futex_top_waiter()  argument
583 	plist_for_each_entry(this, &hb->chain, list) {  in futex_top_waiter()
714 	struct futex_hash_bucket *hb;  in exit_pi_state_list()  local
730 		hb = hash_futex(&key);  in exit_pi_state_list()
733 		spin_lock(&hb->lock);  in exit_pi_state_list()
741 			spin_unlock(&hb->lock);  in exit_pi_state_list()
753 		spin_unlock(&hb->lock);  in exit_pi_state_list()
954 static int lookup_pi_state(u32 uval, struct futex_hash_bucket *hb,  in lookup_pi_state()  argument
957 	struct futex_q *match = futex_top_waiter(hb, key);  in lookup_pi_state()
1002 static int futex_lock_pi_atomic(u32 __user *uaddr, struct futex_hash_bucket *hb,  in futex_lock_pi_atomic()  argument
1028 	match = futex_top_waiter(hb, key);  in futex_lock_pi_atomic()
1080 	struct futex_hash_bucket *hb;  in __unqueue_futex()  local
1086 	hb = container_of(q->lock_ptr, struct futex_hash_bucket, lock);  in __unqueue_futex()
1087 	plist_del(&q->list, &hb->chain);  in __unqueue_futex()
1088 	hb_waiters_dec(hb);  in __unqueue_futex()
1226 	struct futex_hash_bucket *hb;  in futex_wake()  local
1238 	hb = hash_futex(&key);  in futex_wake()
1241 	if (!hb_waiters_pending(hb))  in futex_wake()
1244 	spin_lock(&hb->lock);  in futex_wake()
1246 	plist_for_each_entry_safe(this, next, &hb->chain, list) {  in futex_wake()
1263 	spin_unlock(&hb->lock);  in futex_wake()
1408 			   struct futex_hash_bucket *hb)  in requeue_pi_wake_futex()  argument
1418 	q->lock_ptr = &hb->lock;  in requeue_pi_wake_futex()
1753 	__acquires(&hb->lock)  in queue_lock()
1755 	struct futex_hash_bucket *hb;  in queue_lock()  local
1757 	hb = hash_futex(&q->key);  in queue_lock()
1767 	hb_waiters_inc(hb);  in queue_lock()
1769 	q->lock_ptr = &hb->lock;  in queue_lock()
1771 	spin_lock(&hb->lock); /* implies MB (A) */  in queue_lock()
1772 	return hb;  in queue_lock()
1776 queue_unlock(struct futex_hash_bucket *hb)  in queue_unlock()  argument
1777 	__releases(&hb->lock)  in queue_unlock()
1779 	spin_unlock(&hb->lock);  in queue_unlock()
1780 	hb_waiters_dec(hb);  in queue_unlock()
1795 static inline void queue_me(struct futex_q *q, struct futex_hash_bucket *hb)  in queue_me()  argument
1796 	__releases(&hb->lock)  in queue_me()
1811 	plist_add(&q->list, &hb->chain);  in queue_me()
1813 	spin_unlock(&hb->lock);  in queue_me()
2063 static void futex_wait_queue_me(struct futex_hash_bucket *hb, struct futex_q *q,  in futex_wait_queue_me()  argument
2073 	queue_me(q, hb);  in futex_wait_queue_me()
2116 			   struct futex_q *q, struct futex_hash_bucket **hb)  in futex_wait_setup()  argument
2145 	*hb = queue_lock(q);  in futex_wait_setup()
2150 		queue_unlock(*hb);  in futex_wait_setup()
2164 		queue_unlock(*hb);  in futex_wait_setup()
2179 	struct futex_hash_bucket *hb;  in futex_wait()  local
2203 	ret = futex_wait_setup(uaddr, val, flags, &q, &hb);  in futex_wait()
2208 	futex_wait_queue_me(hb, &q, to);  in futex_wait()
2275 	struct futex_hash_bucket *hb;  in futex_lock_pi()  local
2296 	hb = queue_lock(&q);  in futex_lock_pi()
2298 	ret = futex_lock_pi_atomic(uaddr, hb, &q.key, &q.pi_state, current, 0);  in futex_lock_pi()
2314 			queue_unlock(hb);  in futex_lock_pi()
2326 	queue_me(&q, hb);  in futex_lock_pi()
2366 	queue_unlock(hb);  in futex_lock_pi()
2376 	queue_unlock(hb);  in futex_lock_pi()
2398 	struct futex_hash_bucket *hb;  in futex_unlock_pi()  local
2415 	hb = hash_futex(&key);  in futex_unlock_pi()
2416 	spin_lock(&hb->lock);  in futex_unlock_pi()
2423 	match = futex_top_waiter(hb, &key);  in futex_unlock_pi()
2437 			spin_unlock(&hb->lock);  in futex_unlock_pi()
2460 	spin_unlock(&hb->lock);  in futex_unlock_pi()
2465 	spin_unlock(&hb->lock);  in futex_unlock_pi()
2492 int handle_early_requeue_pi_wakeup(struct futex_hash_bucket *hb,  in handle_early_requeue_pi_wakeup()  argument
2506 		WARN_ON(q->lock_ptr && (&hb->lock != q->lock_ptr));  in handle_early_requeue_pi_wakeup()
2511 		plist_del(&q->list, &hb->chain);  in handle_early_requeue_pi_wakeup()
2512 		hb_waiters_dec(hb);  in handle_early_requeue_pi_wakeup()
2571 	struct futex_hash_bucket *hb;  in futex_wait_requeue_pi()  local
2613 	ret = futex_wait_setup(uaddr, val, flags, &q, &hb);  in futex_wait_requeue_pi()
2622 		queue_unlock(hb);  in futex_wait_requeue_pi()
2628 	futex_wait_queue_me(hb, &q, to);  in futex_wait_requeue_pi()
2630 	spin_lock(&hb->lock);  in futex_wait_requeue_pi()
2631 	ret = handle_early_requeue_pi_wakeup(hb, &q, &key2, to);  in futex_wait_requeue_pi()
2632 	spin_unlock(&hb->lock);  in futex_wait_requeue_pi()