Lines Matching defs:waiter

181 static inline bool __mutex_waiter_is_first(struct mutex *lock, struct mutex_waiter *waiter)
183 	return list_first_entry(&lock->wait_list, struct mutex_waiter, list) == waiter;
187  * Add @waiter to a given location in the lock wait_list and set the
188  * FLAG_WAITERS flag if it's the first waiter.
191 __mutex_add_waiter(struct mutex *lock, struct mutex_waiter *waiter,
197 	debug_mutex_add_waiter(lock, waiter, current);
199 	list_add_tail(&waiter->list, list);
200 	if (__mutex_waiter_is_first(lock, waiter))
205 __mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter)
207 	list_del(&waiter->list);
211 	debug_mutex_remove_waiter(lock, waiter, current);
297 			    struct mutex_waiter *waiter)
320 	 * lock from a waiter with an earlier stamp, since the
324 	if (!waiter && (atomic_long_read(&lock->owner) & MUTEX_FLAG_WAITERS))
329 	 * first waiter.
331 	if (waiter && !__mutex_waiter_is_first(lock, waiter))
345 			 struct ww_acquire_ctx *ww_ctx, struct mutex_waiter *waiter)
370 		if (ww_ctx && !ww_mutex_spin_on_owner(lock, ww_ctx, waiter)) {
427  * The waiter flag is set to true if the spinner is a waiter in the wait
428  * queue. The waiter-spinner will spin on the lock directly and concurrently
434 		      struct mutex_waiter *waiter)
436 	if (!waiter) {
440 		 * in case spinning isn't possible. As a waiter-spinner
468 		if (!mutex_spin_on_owner(lock, owner, ww_ctx, waiter))
480 	if (!waiter)
487 	if (!waiter)
510 		      struct mutex_waiter *waiter)
571 	struct mutex_waiter waiter;
627 	debug_mutex_lock_common(lock, &waiter);
628 	waiter.task = current;
630 		waiter.ww_ctx = ww_ctx;
636 		__mutex_add_waiter(lock, &waiter, &lock->wait_list);
642 		ret = __ww_mutex_add_waiter(&waiter, lock, ww_ctx, &wake_q);
672 			ret = __ww_mutex_check_kill(lock, &waiter, ww_ctx);
681 		first = __mutex_waiter_is_first(lock, &waiter);
694 			if (mutex_optimistic_spin(lock, ww_ctx, &waiter))
711 		    !__mutex_waiter_is_first(lock, &waiter))
715 	__mutex_remove_waiter(lock, &waiter);
717 	debug_mutex_free_waiter(&waiter);
733 	__mutex_remove_waiter(lock, &waiter);
737 	debug_mutex_free_waiter(&waiter);
916 	 * but instead set it to the top waiter.
938 		struct mutex_waiter *waiter =
942 		next = waiter->task;
944 		debug_mutex_wake_waiter(lock, waiter);