Lines Matching full:queue
91 * queue->lock and bh_disabled in order to avoid races within
95 __rpc_disable_timer(struct rpc_wait_queue *queue, struct rpc_task *task) in __rpc_disable_timer() argument
101 if (list_empty(&queue->timer_list.list)) in __rpc_disable_timer()
102 cancel_delayed_work(&queue->timer_list.dwork); in __rpc_disable_timer()
106 rpc_set_queue_timer(struct rpc_wait_queue *queue, unsigned long expires) in rpc_set_queue_timer() argument
109 queue->timer_list.expires = expires; in rpc_set_queue_timer()
114 mod_delayed_work(rpciod_workqueue, &queue->timer_list.dwork, expires); in rpc_set_queue_timer()
121 __rpc_add_timer(struct rpc_wait_queue *queue, struct rpc_task *task, in __rpc_add_timer() argument
125 if (list_empty(&queue->timer_list.list) || time_before(timeout, queue->timer_list.expires)) in __rpc_add_timer()
126 rpc_set_queue_timer(queue, timeout); in __rpc_add_timer()
127 list_add(&task->u.tk_wait.timer_list, &queue->timer_list.list); in __rpc_add_timer()
130 static void rpc_set_waitqueue_priority(struct rpc_wait_queue *queue, int priority) in rpc_set_waitqueue_priority() argument
132 if (queue->priority != priority) { in rpc_set_waitqueue_priority()
133 queue->priority = priority; in rpc_set_waitqueue_priority()
134 queue->nr = 1U << priority; in rpc_set_waitqueue_priority()
138 static void rpc_reset_waitqueue_priority(struct rpc_wait_queue *queue) in rpc_reset_waitqueue_priority() argument
140 rpc_set_waitqueue_priority(queue, queue->maxpriority); in rpc_reset_waitqueue_priority()
144 * Add a request to a queue list
155 /* Cache the queue head in task->u.tk_wait.list */ in __rpc_list_enqueue_task()
166 * Remove request from a queue list
182 /* Assume __rpc_list_enqueue_task() cached the queue head */ in __rpc_list_dequeue_task()
191 * Add new request to a priority queue.
193 static void __rpc_add_wait_queue_priority(struct rpc_wait_queue *queue, in __rpc_add_wait_queue_priority() argument
197 if (unlikely(queue_priority > queue->maxpriority)) in __rpc_add_wait_queue_priority()
198 queue_priority = queue->maxpriority; in __rpc_add_wait_queue_priority()
199 __rpc_list_enqueue_task(&queue->tasks[queue_priority], task); in __rpc_add_wait_queue_priority()
203 * Add new request to wait queue.
205 static void __rpc_add_wait_queue(struct rpc_wait_queue *queue, in __rpc_add_wait_queue() argument
210 if (RPC_IS_PRIORITY(queue)) in __rpc_add_wait_queue()
211 __rpc_add_wait_queue_priority(queue, task, queue_priority); in __rpc_add_wait_queue()
213 list_add_tail(&task->u.tk_wait.list, &queue->tasks[0]); in __rpc_add_wait_queue()
214 task->tk_waitqueue = queue; in __rpc_add_wait_queue()
215 queue->qlen++; in __rpc_add_wait_queue()
222 * Remove request from a priority queue.
230 * Remove request from queue.
233 static void __rpc_remove_wait_queue(struct rpc_wait_queue *queue, struct rpc_task *task) in __rpc_remove_wait_queue() argument
235 __rpc_disable_timer(queue, task); in __rpc_remove_wait_queue()
236 if (RPC_IS_PRIORITY(queue)) in __rpc_remove_wait_queue()
240 queue->qlen--; in __rpc_remove_wait_queue()
243 static void __rpc_init_priority_wait_queue(struct rpc_wait_queue *queue, const char *qname, unsigne… in __rpc_init_priority_wait_queue() argument
247 spin_lock_init(&queue->lock); in __rpc_init_priority_wait_queue()
248 for (i = 0; i < ARRAY_SIZE(queue->tasks); i++) in __rpc_init_priority_wait_queue()
249 INIT_LIST_HEAD(&queue->tasks[i]); in __rpc_init_priority_wait_queue()
250 queue->maxpriority = nr_queues - 1; in __rpc_init_priority_wait_queue()
251 rpc_reset_waitqueue_priority(queue); in __rpc_init_priority_wait_queue()
252 queue->qlen = 0; in __rpc_init_priority_wait_queue()
253 queue->timer_list.expires = 0; in __rpc_init_priority_wait_queue()
254 INIT_DELAYED_WORK(&queue->timer_list.dwork, __rpc_queue_timer_fn); in __rpc_init_priority_wait_queue()
255 INIT_LIST_HEAD(&queue->timer_list.list); in __rpc_init_priority_wait_queue()
256 rpc_assign_waitqueue_name(queue, qname); in __rpc_init_priority_wait_queue()
259 void rpc_init_priority_wait_queue(struct rpc_wait_queue *queue, const char *qname) in rpc_init_priority_wait_queue() argument
261 __rpc_init_priority_wait_queue(queue, qname, RPC_NR_PRIORITY); in rpc_init_priority_wait_queue()
265 void rpc_init_wait_queue(struct rpc_wait_queue *queue, const char *qname) in rpc_init_wait_queue() argument
267 __rpc_init_priority_wait_queue(queue, qname, 1); in rpc_init_wait_queue()
271 void rpc_destroy_wait_queue(struct rpc_wait_queue *queue) in rpc_destroy_wait_queue() argument
273 cancel_delayed_work_sync(&queue->timer_list.dwork); in rpc_destroy_wait_queue()
354 * rpc_wait_queue, this must be called with the queue spinlock held to protect
355 * the wait queue operation.
379 * Prepare for sleeping on a wait queue.
382 * as it's on a wait queue.
441 * Protect the queue operations. in rpc_sleep_on_timeout()
459 * Protect the queue operations. in rpc_sleep_on()
475 * Protect the queue operations. in rpc_sleep_on_priority_timeout()
492 * Protect the queue operations. in rpc_sleep_on_priority()
503 * @queue: wait queue
506 * Caller must hold queue->lock, and have cleared the task queued flag.
509 struct rpc_wait_queue *queue, in __rpc_do_wake_up_task_on_wq() argument
518 trace_rpc_task_wakeup(task, queue); in __rpc_do_wake_up_task_on_wq()
520 __rpc_remove_wait_queue(queue, task); in __rpc_do_wake_up_task_on_wq()
526 * Wake up a queued task while the queue lock is being held
530 struct rpc_wait_queue *queue, struct rpc_task *task, in rpc_wake_up_task_on_wq_queue_action_locked() argument
535 if (task->tk_waitqueue == queue) { in rpc_wake_up_task_on_wq_queue_action_locked()
537 __rpc_do_wake_up_task_on_wq(wq, queue, task); in rpc_wake_up_task_on_wq_queue_action_locked()
546 * Wake up a queued task while the queue lock is being held
548 static void rpc_wake_up_task_queue_locked(struct rpc_wait_queue *queue, in rpc_wake_up_task_queue_locked() argument
551 rpc_wake_up_task_on_wq_queue_action_locked(rpciod_workqueue, queue, in rpc_wake_up_task_queue_locked()
556 * Wake up a task on a specific queue
558 void rpc_wake_up_queued_task(struct rpc_wait_queue *queue, struct rpc_task *task) in rpc_wake_up_queued_task() argument
562 spin_lock(&queue->lock); in rpc_wake_up_queued_task()
563 rpc_wake_up_task_queue_locked(queue, task); in rpc_wake_up_queued_task()
564 spin_unlock(&queue->lock); in rpc_wake_up_queued_task()
575 rpc_wake_up_task_queue_set_status_locked(struct rpc_wait_queue *queue, in rpc_wake_up_task_queue_set_status_locked() argument
578 rpc_wake_up_task_on_wq_queue_action_locked(rpciod_workqueue, queue, in rpc_wake_up_task_queue_set_status_locked()
584 * @queue: pointer to rpc_wait_queue
588 * If @task is queued on @queue, then it is woken up, and @task->tk_status is
592 rpc_wake_up_queued_task_set_status(struct rpc_wait_queue *queue, in rpc_wake_up_queued_task_set_status() argument
597 spin_lock(&queue->lock); in rpc_wake_up_queued_task_set_status()
598 rpc_wake_up_task_queue_set_status_locked(queue, task, status); in rpc_wake_up_queued_task_set_status()
599 spin_unlock(&queue->lock); in rpc_wake_up_queued_task_set_status()
603 * Wake up the next task on a priority queue.
605 static struct rpc_task *__rpc_find_next_queued_priority(struct rpc_wait_queue *queue) in __rpc_find_next_queued_priority() argument
611 * Service the privileged queue. in __rpc_find_next_queued_priority()
613 q = &queue->tasks[RPC_NR_PRIORITY - 1]; in __rpc_find_next_queued_priority()
614 if (queue->maxpriority > RPC_PRIORITY_PRIVILEGED && !list_empty(q)) { in __rpc_find_next_queued_priority()
622 q = &queue->tasks[queue->priority]; in __rpc_find_next_queued_priority()
623 if (!list_empty(q) && queue->nr) { in __rpc_find_next_queued_priority()
624 queue->nr--; in __rpc_find_next_queued_priority()
630 * Service the next queue. in __rpc_find_next_queued_priority()
633 if (q == &queue->tasks[0]) in __rpc_find_next_queued_priority()
634 q = &queue->tasks[queue->maxpriority]; in __rpc_find_next_queued_priority()
641 } while (q != &queue->tasks[queue->priority]); in __rpc_find_next_queued_priority()
643 rpc_reset_waitqueue_priority(queue); in __rpc_find_next_queued_priority()
647 rpc_set_waitqueue_priority(queue, (unsigned int)(q - &queue->tasks[0])); in __rpc_find_next_queued_priority()
652 static struct rpc_task *__rpc_find_next_queued(struct rpc_wait_queue *queue) in __rpc_find_next_queued() argument
654 if (RPC_IS_PRIORITY(queue)) in __rpc_find_next_queued()
655 return __rpc_find_next_queued_priority(queue); in __rpc_find_next_queued()
656 if (!list_empty(&queue->tasks[0])) in __rpc_find_next_queued()
657 return list_first_entry(&queue->tasks[0], struct rpc_task, u.tk_wait.list); in __rpc_find_next_queued()
662 * Wake up the first task on the wait queue.
665 struct rpc_wait_queue *queue, in rpc_wake_up_first_on_wq() argument
670 spin_lock(&queue->lock); in rpc_wake_up_first_on_wq()
671 task = __rpc_find_next_queued(queue); in rpc_wake_up_first_on_wq()
673 task = rpc_wake_up_task_on_wq_queue_action_locked(wq, queue, in rpc_wake_up_first_on_wq()
675 spin_unlock(&queue->lock); in rpc_wake_up_first_on_wq()
681 * Wake up the first task on the wait queue.
683 struct rpc_task *rpc_wake_up_first(struct rpc_wait_queue *queue, in rpc_wake_up_first() argument
686 return rpc_wake_up_first_on_wq(rpciod_workqueue, queue, func, data); in rpc_wake_up_first()
696 * Wake up the next task on the wait queue.
698 struct rpc_task *rpc_wake_up_next(struct rpc_wait_queue *queue) in rpc_wake_up_next() argument
700 return rpc_wake_up_first(queue, rpc_wake_up_next_func, NULL); in rpc_wake_up_next()
706 * @queue: rpc_wait_queue on which the tasks are sleeping
709 static void rpc_wake_up_locked(struct rpc_wait_queue *queue) in rpc_wake_up_locked() argument
714 task = __rpc_find_next_queued(queue); in rpc_wake_up_locked()
717 rpc_wake_up_task_queue_locked(queue, task); in rpc_wake_up_locked()
723 * @queue: rpc_wait_queue on which the tasks are sleeping
725 * Grabs queue->lock
727 void rpc_wake_up(struct rpc_wait_queue *queue) in rpc_wake_up() argument
729 spin_lock(&queue->lock); in rpc_wake_up()
730 rpc_wake_up_locked(queue); in rpc_wake_up()
731 spin_unlock(&queue->lock); in rpc_wake_up()
737 * @queue: rpc_wait_queue on which the tasks are sleeping
740 static void rpc_wake_up_status_locked(struct rpc_wait_queue *queue, int status) in rpc_wake_up_status_locked() argument
745 task = __rpc_find_next_queued(queue); in rpc_wake_up_status_locked()
748 rpc_wake_up_task_queue_set_status_locked(queue, task, status); in rpc_wake_up_status_locked()
754 * @queue: rpc_wait_queue on which the tasks are sleeping
757 * Grabs queue->lock
759 void rpc_wake_up_status(struct rpc_wait_queue *queue, int status) in rpc_wake_up_status() argument
761 spin_lock(&queue->lock); in rpc_wake_up_status()
762 rpc_wake_up_status_locked(queue, status); in rpc_wake_up_status()
763 spin_unlock(&queue->lock); in rpc_wake_up_status()
769 struct rpc_wait_queue *queue = container_of(work, in __rpc_queue_timer_fn() local
775 spin_lock(&queue->lock); in __rpc_queue_timer_fn()
777 list_for_each_entry_safe(task, n, &queue->timer_list.list, u.tk_wait.timer_list) { in __rpc_queue_timer_fn()
782 rpc_wake_up_task_queue_locked(queue, task); in __rpc_queue_timer_fn()
788 if (!list_empty(&queue->timer_list.list)) in __rpc_queue_timer_fn()
789 rpc_set_queue_timer(queue, expires); in __rpc_queue_timer_fn()
790 spin_unlock(&queue->lock); in __rpc_queue_timer_fn()
859 struct rpc_wait_queue *queue; in rpc_signal_task() local
867 queue = READ_ONCE(task->tk_waitqueue); in rpc_signal_task()
868 if (queue) in rpc_signal_task()
869 rpc_wake_up_queued_task(queue, task); in rpc_signal_task()
874 struct rpc_wait_queue *queue; in rpc_task_try_cancel() local
878 queue = READ_ONCE(task->tk_waitqueue); in rpc_task_try_cancel()
879 if (queue) in rpc_task_try_cancel()
880 rpc_wake_up_queued_task(queue, task); in rpc_task_try_cancel()
911 struct rpc_wait_queue *queue; in __rpc_execute() local
958 * The queue->lock protects against races with in __rpc_execute()
966 queue = task->tk_waitqueue; in __rpc_execute()
967 spin_lock(&queue->lock); in __rpc_execute()
969 spin_unlock(&queue->lock); in __rpc_execute()
974 rpc_wake_up_task_queue_locked(queue, task); in __rpc_execute()
975 spin_unlock(&queue->lock); in __rpc_execute()
979 spin_unlock(&queue->lock); in __rpc_execute()
992 * clean up after sleeping on some queue, we don't in __rpc_execute()