138 static void alarmtimer_enqueue(struct alarm_base *base, struct alarm *alarm)  in alarmtimer_enqueue()  argument
140 	if (alarm->state & ALARMTIMER_STATE_ENQUEUED)  in alarmtimer_enqueue()
141 		timerqueue_del(&base->timerqueue, &alarm->node);  in alarmtimer_enqueue()
143 	timerqueue_add(&base->timerqueue, &alarm->node);  in alarmtimer_enqueue()
144 	alarm->state |= ALARMTIMER_STATE_ENQUEUED;  in alarmtimer_enqueue()
156 static void alarmtimer_dequeue(struct alarm_base *base, struct alarm *alarm)  in alarmtimer_dequeue()  argument
158 	if (!(alarm->state & ALARMTIMER_STATE_ENQUEUED))  in alarmtimer_dequeue()
161 	timerqueue_del(&base->timerqueue, &alarm->node);  in alarmtimer_dequeue()
162 	alarm->state &= ~ALARMTIMER_STATE_ENQUEUED;  in alarmtimer_dequeue()
177 	struct alarm *alarm = container_of(timer, struct alarm, timer);  in alarmtimer_fired()  local
178 	struct alarm_base *base = &alarm_bases[alarm->type];  in alarmtimer_fired()
184 	alarmtimer_dequeue(base, alarm);  in alarmtimer_fired()
187 	if (alarm->function)  in alarmtimer_fired()
188 		restart = alarm->function(alarm, base->gettime());  in alarmtimer_fired()
192 		hrtimer_set_expires(&alarm->timer, alarm->node.expires);  in alarmtimer_fired()
193 		alarmtimer_enqueue(base, alarm);  in alarmtimer_fired()
202 ktime_t alarm_expires_remaining(const struct alarm *alarm)  in alarm_expires_remaining()  argument
204 	struct alarm_base *base = &alarm_bases[alarm->type];  in alarm_expires_remaining()
205 	return ktime_sub(alarm->node.expires, base->gettime());  in alarm_expires_remaining()
301 void alarm_init(struct alarm *alarm, enum alarmtimer_type type,  in alarm_init()  argument
302 		enum alarmtimer_restart (*function)(struct alarm *, ktime_t))  in alarm_init()  argument
304 	timerqueue_init(&alarm->node);  in alarm_init()
305 	hrtimer_init(&alarm->timer, alarm_bases[type].base_clockid,  in alarm_init()
307 	alarm->timer.function = alarmtimer_fired;  in alarm_init()
308 	alarm->function = function;  in alarm_init()
309 	alarm->type = type;  in alarm_init()
310 	alarm->state = ALARMTIMER_STATE_INACTIVE;  in alarm_init()
318 int alarm_start(struct alarm *alarm, ktime_t start)  in alarm_start()  argument
320 	struct alarm_base *base = &alarm_bases[alarm->type];  in alarm_start()
325 	alarm->node.expires = start;  in alarm_start()
326 	alarmtimer_enqueue(base, alarm);  in alarm_start()
327 	ret = hrtimer_start(&alarm->timer, alarm->node.expires,  in alarm_start()
338 int alarm_start_relative(struct alarm *alarm, ktime_t start)  in alarm_start_relative()  argument
340 	struct alarm_base *base = &alarm_bases[alarm->type];  in alarm_start_relative()
343 	return alarm_start(alarm, start);  in alarm_start_relative()
346 void alarm_restart(struct alarm *alarm)  in alarm_restart()  argument
348 	struct alarm_base *base = &alarm_bases[alarm->type];  in alarm_restart()
352 	hrtimer_set_expires(&alarm->timer, alarm->node.expires);  in alarm_restart()
353 	hrtimer_restart(&alarm->timer);  in alarm_restart()
354 	alarmtimer_enqueue(base, alarm);  in alarm_restart()
365 int alarm_try_to_cancel(struct alarm *alarm)  in alarm_try_to_cancel()  argument
367 	struct alarm_base *base = &alarm_bases[alarm->type];  in alarm_try_to_cancel()
372 	ret = hrtimer_try_to_cancel(&alarm->timer);  in alarm_try_to_cancel()
374 		alarmtimer_dequeue(base, alarm);  in alarm_try_to_cancel()
386 int alarm_cancel(struct alarm *alarm)  in alarm_cancel()  argument
389 		int ret = alarm_try_to_cancel(alarm);  in alarm_cancel()
397 u64 alarm_forward(struct alarm *alarm, ktime_t now, ktime_t interval)  in alarm_forward()  argument
402 	delta = ktime_sub(now, alarm->node.expires);  in alarm_forward()
412 		alarm->node.expires = ktime_add_ns(alarm->node.expires,  in alarm_forward()
415 		if (alarm->node.expires.tv64 > now.tv64)  in alarm_forward()
424 	alarm->node.expires = ktime_add(alarm->node.expires, interval);  in alarm_forward()
428 u64 alarm_forward_now(struct alarm *alarm, ktime_t interval)  in alarm_forward_now()  argument
430 	struct alarm_base *base = &alarm_bases[alarm->type];  in alarm_forward_now()
432 	return alarm_forward(alarm, base->gettime(), interval);  in alarm_forward_now()
456 static enum alarmtimer_restart alarm_handle_timer(struct alarm *alarm,  in alarm_handle_timer()  argument
459 	struct k_itimer *ptr = container_of(alarm, struct k_itimer,  in alarm_handle_timer()
460 						it.alarm.alarmtimer);  in alarm_handle_timer()
465 	if (ptr->it.alarm.interval.tv64) {  in alarm_handle_timer()
466 		ptr->it_overrun += alarm_forward(alarm, now,  in alarm_handle_timer()
467 						ptr->it.alarm.interval);  in alarm_handle_timer()
527 	alarm_init(&new_timer->it.alarm.alarmtimer, type, alarm_handle_timer);  in alarm_timer_create()
544 			ktime_to_timespec(timr->it.alarm.interval);  in alarm_timer_get()
546 		ktime_to_timespec(timr->it.alarm.alarmtimer.node.expires);  in alarm_timer_get()
561 	if (alarm_try_to_cancel(&timr->it.alarm.alarmtimer) < 0)  in alarm_timer_del()
587 	if (alarm_try_to_cancel(&timr->it.alarm.alarmtimer) < 0)  in alarm_timer_set()
591 	timr->it.alarm.interval = timespec_to_ktime(new_setting->it_interval);  in alarm_timer_set()
592 	alarm_start(&timr->it.alarm.alarmtimer,  in alarm_timer_set()
603 static enum alarmtimer_restart alarmtimer_nsleep_wakeup(struct alarm *alarm,  in alarmtimer_nsleep_wakeup()  argument
606 	struct task_struct *task = (struct task_struct *)alarm->data;  in alarmtimer_nsleep_wakeup()
608 	alarm->data = NULL;  in alarmtimer_nsleep_wakeup()
621 static int alarmtimer_do_nsleep(struct alarm *alarm, ktime_t absexp)  in alarmtimer_do_nsleep()  argument
623 	alarm->data = (void *)current;  in alarmtimer_do_nsleep()
626 		alarm_start(alarm, absexp);  in alarmtimer_do_nsleep()
627 		if (likely(alarm->data))  in alarmtimer_do_nsleep()
630 		alarm_cancel(alarm);  in alarmtimer_do_nsleep()
631 	} while (alarm->data && !signal_pending(current));  in alarmtimer_do_nsleep()
635 	return (alarm->data == NULL);  in alarmtimer_do_nsleep()
678 	struct alarm alarm;  in alarm_timer_nsleep_restart()  local
682 	alarm_init(&alarm, type, alarmtimer_nsleep_wakeup);  in alarm_timer_nsleep_restart()
684 	if (alarmtimer_do_nsleep(&alarm, exp))  in alarm_timer_nsleep_restart()
717 	struct alarm alarm;  in alarm_timer_nsleep()  local
728 	alarm_init(&alarm, type, alarmtimer_nsleep_wakeup);  in alarm_timer_nsleep()
737 	if (alarmtimer_do_nsleep(&alarm, exp))  in alarm_timer_nsleep()