Lines Matching full:queue
76 * queue->lock and bh_disabled in order to avoid races within
80 __rpc_disable_timer(struct rpc_wait_queue *queue, struct rpc_task *task) in __rpc_disable_timer() argument
86 if (list_empty(&queue->timer_list.list)) in __rpc_disable_timer()
87 cancel_delayed_work(&queue->timer_list.dwork); in __rpc_disable_timer()
91 rpc_set_queue_timer(struct rpc_wait_queue *queue, unsigned long expires) in rpc_set_queue_timer() argument
94 queue->timer_list.expires = expires; in rpc_set_queue_timer()
99 mod_delayed_work(rpciod_workqueue, &queue->timer_list.dwork, expires); in rpc_set_queue_timer()
106 __rpc_add_timer(struct rpc_wait_queue *queue, struct rpc_task *task, in __rpc_add_timer() argument
110 if (list_empty(&queue->timer_list.list) || time_before(timeout, queue->timer_list.expires)) in __rpc_add_timer()
111 rpc_set_queue_timer(queue, timeout); in __rpc_add_timer()
112 list_add(&task->u.tk_wait.timer_list, &queue->timer_list.list); in __rpc_add_timer()
115 static void rpc_set_waitqueue_priority(struct rpc_wait_queue *queue, int priority) in rpc_set_waitqueue_priority() argument
117 if (queue->priority != priority) { in rpc_set_waitqueue_priority()
118 queue->priority = priority; in rpc_set_waitqueue_priority()
119 queue->nr = 1U << priority; in rpc_set_waitqueue_priority()
123 static void rpc_reset_waitqueue_priority(struct rpc_wait_queue *queue) in rpc_reset_waitqueue_priority() argument
125 rpc_set_waitqueue_priority(queue, queue->maxpriority); in rpc_reset_waitqueue_priority()
129 * Add a request to a queue list
140 /* Cache the queue head in task->u.tk_wait.list */ in __rpc_list_enqueue_task()
151 * Remove request from a queue list
167 /* Assume __rpc_list_enqueue_task() cached the queue head */ in __rpc_list_dequeue_task()
176 * Add new request to a priority queue.
178 static void __rpc_add_wait_queue_priority(struct rpc_wait_queue *queue, in __rpc_add_wait_queue_priority() argument
182 if (unlikely(queue_priority > queue->maxpriority)) in __rpc_add_wait_queue_priority()
183 queue_priority = queue->maxpriority; in __rpc_add_wait_queue_priority()
184 __rpc_list_enqueue_task(&queue->tasks[queue_priority], task); in __rpc_add_wait_queue_priority()
188 * Add new request to wait queue.
190 static void __rpc_add_wait_queue(struct rpc_wait_queue *queue, in __rpc_add_wait_queue() argument
195 if (RPC_IS_PRIORITY(queue)) in __rpc_add_wait_queue()
196 __rpc_add_wait_queue_priority(queue, task, queue_priority); in __rpc_add_wait_queue()
198 list_add_tail(&task->u.tk_wait.list, &queue->tasks[0]); in __rpc_add_wait_queue()
199 task->tk_waitqueue = queue; in __rpc_add_wait_queue()
200 queue->qlen++; in __rpc_add_wait_queue()
207 * Remove request from a priority queue.
215 * Remove request from queue.
218 static void __rpc_remove_wait_queue(struct rpc_wait_queue *queue, struct rpc_task *task) in __rpc_remove_wait_queue() argument
220 __rpc_disable_timer(queue, task); in __rpc_remove_wait_queue()
221 if (RPC_IS_PRIORITY(queue)) in __rpc_remove_wait_queue()
225 queue->qlen--; in __rpc_remove_wait_queue()
228 static void __rpc_init_priority_wait_queue(struct rpc_wait_queue *queue, const char *qname, unsigne… in __rpc_init_priority_wait_queue() argument
232 spin_lock_init(&queue->lock); in __rpc_init_priority_wait_queue()
233 for (i = 0; i < ARRAY_SIZE(queue->tasks); i++) in __rpc_init_priority_wait_queue()
234 INIT_LIST_HEAD(&queue->tasks[i]); in __rpc_init_priority_wait_queue()
235 queue->maxpriority = nr_queues - 1; in __rpc_init_priority_wait_queue()
236 rpc_reset_waitqueue_priority(queue); in __rpc_init_priority_wait_queue()
237 queue->qlen = 0; in __rpc_init_priority_wait_queue()
238 queue->timer_list.expires = 0; in __rpc_init_priority_wait_queue()
239 INIT_DELAYED_WORK(&queue->timer_list.dwork, __rpc_queue_timer_fn); in __rpc_init_priority_wait_queue()
240 INIT_LIST_HEAD(&queue->timer_list.list); in __rpc_init_priority_wait_queue()
241 rpc_assign_waitqueue_name(queue, qname); in __rpc_init_priority_wait_queue()
244 void rpc_init_priority_wait_queue(struct rpc_wait_queue *queue, const char *qname) in rpc_init_priority_wait_queue() argument
246 __rpc_init_priority_wait_queue(queue, qname, RPC_NR_PRIORITY); in rpc_init_priority_wait_queue()
250 void rpc_init_wait_queue(struct rpc_wait_queue *queue, const char *qname) in rpc_init_wait_queue() argument
252 __rpc_init_priority_wait_queue(queue, qname, 1); in rpc_init_wait_queue()
256 void rpc_destroy_wait_queue(struct rpc_wait_queue *queue) in rpc_destroy_wait_queue() argument
258 cancel_delayed_work_sync(&queue->timer_list.dwork); in rpc_destroy_wait_queue()
333 * rpc_wait_queue, this must be called with the queue spinlock held to protect
334 * the wait queue operation.
356 * Prepare for sleeping on a wait queue.
359 * as it's on a wait queue.
418 * Protect the queue operations. in rpc_sleep_on_timeout()
436 * Protect the queue operations. in rpc_sleep_on()
452 * Protect the queue operations. in rpc_sleep_on_priority_timeout()
469 * Protect the queue operations. in rpc_sleep_on_priority()
480 * @queue: wait queue
483 * Caller must hold queue->lock, and have cleared the task queued flag.
486 struct rpc_wait_queue *queue, in __rpc_do_wake_up_task_on_wq() argument
495 trace_rpc_task_wakeup(task, queue); in __rpc_do_wake_up_task_on_wq()
497 __rpc_remove_wait_queue(queue, task); in __rpc_do_wake_up_task_on_wq()
503 * Wake up a queued task while the queue lock is being held
507 struct rpc_wait_queue *queue, struct rpc_task *task, in rpc_wake_up_task_on_wq_queue_action_locked() argument
512 if (task->tk_waitqueue == queue) { in rpc_wake_up_task_on_wq_queue_action_locked()
514 __rpc_do_wake_up_task_on_wq(wq, queue, task); in rpc_wake_up_task_on_wq_queue_action_locked()
523 * Wake up a queued task while the queue lock is being held
525 static void rpc_wake_up_task_queue_locked(struct rpc_wait_queue *queue, in rpc_wake_up_task_queue_locked() argument
528 rpc_wake_up_task_on_wq_queue_action_locked(rpciod_workqueue, queue, in rpc_wake_up_task_queue_locked()
533 * Wake up a task on a specific queue
535 void rpc_wake_up_queued_task(struct rpc_wait_queue *queue, struct rpc_task *task) in rpc_wake_up_queued_task() argument
539 spin_lock(&queue->lock); in rpc_wake_up_queued_task()
540 rpc_wake_up_task_queue_locked(queue, task); in rpc_wake_up_queued_task()
541 spin_unlock(&queue->lock); in rpc_wake_up_queued_task()
552 rpc_wake_up_task_queue_set_status_locked(struct rpc_wait_queue *queue, in rpc_wake_up_task_queue_set_status_locked() argument
555 rpc_wake_up_task_on_wq_queue_action_locked(rpciod_workqueue, queue, in rpc_wake_up_task_queue_set_status_locked()
561 * @queue: pointer to rpc_wait_queue
565 * If @task is queued on @queue, then it is woken up, and @task->tk_status is
569 rpc_wake_up_queued_task_set_status(struct rpc_wait_queue *queue, in rpc_wake_up_queued_task_set_status() argument
574 spin_lock(&queue->lock); in rpc_wake_up_queued_task_set_status()
575 rpc_wake_up_task_queue_set_status_locked(queue, task, status); in rpc_wake_up_queued_task_set_status()
576 spin_unlock(&queue->lock); in rpc_wake_up_queued_task_set_status()
580 * Wake up the next task on a priority queue.
582 static struct rpc_task *__rpc_find_next_queued_priority(struct rpc_wait_queue *queue) in __rpc_find_next_queued_priority() argument
588 * Service the privileged queue. in __rpc_find_next_queued_priority()
590 q = &queue->tasks[RPC_NR_PRIORITY - 1]; in __rpc_find_next_queued_priority()
591 if (queue->maxpriority > RPC_PRIORITY_PRIVILEGED && !list_empty(q)) { in __rpc_find_next_queued_priority()
599 q = &queue->tasks[queue->priority]; in __rpc_find_next_queued_priority()
600 if (!list_empty(q) && queue->nr) { in __rpc_find_next_queued_priority()
601 queue->nr--; in __rpc_find_next_queued_priority()
607 * Service the next queue. in __rpc_find_next_queued_priority()
610 if (q == &queue->tasks[0]) in __rpc_find_next_queued_priority()
611 q = &queue->tasks[queue->maxpriority]; in __rpc_find_next_queued_priority()
618 } while (q != &queue->tasks[queue->priority]); in __rpc_find_next_queued_priority()
620 rpc_reset_waitqueue_priority(queue); in __rpc_find_next_queued_priority()
624 rpc_set_waitqueue_priority(queue, (unsigned int)(q - &queue->tasks[0])); in __rpc_find_next_queued_priority()
629 static struct rpc_task *__rpc_find_next_queued(struct rpc_wait_queue *queue) in __rpc_find_next_queued() argument
631 if (RPC_IS_PRIORITY(queue)) in __rpc_find_next_queued()
632 return __rpc_find_next_queued_priority(queue); in __rpc_find_next_queued()
633 if (!list_empty(&queue->tasks[0])) in __rpc_find_next_queued()
634 return list_first_entry(&queue->tasks[0], struct rpc_task, u.tk_wait.list); in __rpc_find_next_queued()
639 * Wake up the first task on the wait queue.
642 struct rpc_wait_queue *queue, in rpc_wake_up_first_on_wq() argument
647 spin_lock(&queue->lock); in rpc_wake_up_first_on_wq()
648 task = __rpc_find_next_queued(queue); in rpc_wake_up_first_on_wq()
650 task = rpc_wake_up_task_on_wq_queue_action_locked(wq, queue, in rpc_wake_up_first_on_wq()
652 spin_unlock(&queue->lock); in rpc_wake_up_first_on_wq()
658 * Wake up the first task on the wait queue.
660 struct rpc_task *rpc_wake_up_first(struct rpc_wait_queue *queue, in rpc_wake_up_first() argument
663 return rpc_wake_up_first_on_wq(rpciod_workqueue, queue, func, data); in rpc_wake_up_first()
673 * Wake up the next task on the wait queue.
675 struct rpc_task *rpc_wake_up_next(struct rpc_wait_queue *queue) in rpc_wake_up_next() argument
677 return rpc_wake_up_first(queue, rpc_wake_up_next_func, NULL); in rpc_wake_up_next()
683 * @queue: rpc_wait_queue on which the tasks are sleeping
686 static void rpc_wake_up_locked(struct rpc_wait_queue *queue) in rpc_wake_up_locked() argument
691 task = __rpc_find_next_queued(queue); in rpc_wake_up_locked()
694 rpc_wake_up_task_queue_locked(queue, task); in rpc_wake_up_locked()
700 * @queue: rpc_wait_queue on which the tasks are sleeping
702 * Grabs queue->lock
704 void rpc_wake_up(struct rpc_wait_queue *queue) in rpc_wake_up() argument
706 spin_lock(&queue->lock); in rpc_wake_up()
707 rpc_wake_up_locked(queue); in rpc_wake_up()
708 spin_unlock(&queue->lock); in rpc_wake_up()
714 * @queue: rpc_wait_queue on which the tasks are sleeping
717 static void rpc_wake_up_status_locked(struct rpc_wait_queue *queue, int status) in rpc_wake_up_status_locked() argument
722 task = __rpc_find_next_queued(queue); in rpc_wake_up_status_locked()
725 rpc_wake_up_task_queue_set_status_locked(queue, task, status); in rpc_wake_up_status_locked()
731 * @queue: rpc_wait_queue on which the tasks are sleeping
734 * Grabs queue->lock
736 void rpc_wake_up_status(struct rpc_wait_queue *queue, int status) in rpc_wake_up_status() argument
738 spin_lock(&queue->lock); in rpc_wake_up_status()
739 rpc_wake_up_status_locked(queue, status); in rpc_wake_up_status()
740 spin_unlock(&queue->lock); in rpc_wake_up_status()
746 struct rpc_wait_queue *queue = container_of(work, in __rpc_queue_timer_fn() local
752 spin_lock(&queue->lock); in __rpc_queue_timer_fn()
754 list_for_each_entry_safe(task, n, &queue->timer_list.list, u.tk_wait.timer_list) { in __rpc_queue_timer_fn()
759 rpc_wake_up_task_queue_locked(queue, task); in __rpc_queue_timer_fn()
765 if (!list_empty(&queue->timer_list.list)) in __rpc_queue_timer_fn()
766 rpc_set_queue_timer(queue, expires); in __rpc_queue_timer_fn()
767 spin_unlock(&queue->lock); in __rpc_queue_timer_fn()
836 struct rpc_wait_queue *queue; in rpc_signal_task() local
844 queue = READ_ONCE(task->tk_waitqueue); in rpc_signal_task()
845 if (queue) in rpc_signal_task()
846 rpc_wake_up_queued_task_set_status(queue, task, -ERESTARTSYS); in rpc_signal_task()
868 struct rpc_wait_queue *queue; in __rpc_execute() local
911 * The queue->lock protects against races with in __rpc_execute()
919 queue = task->tk_waitqueue; in __rpc_execute()
920 spin_lock(&queue->lock); in __rpc_execute()
922 spin_unlock(&queue->lock); in __rpc_execute()
926 spin_unlock(&queue->lock); in __rpc_execute()
939 * clean up after sleeping on some queue, we don't in __rpc_execute()