126 static inline void unlock_timer(struct k_itimer *timr, unsigned long flags)  in unlock_timer()  argument
128 	spin_unlock_irqrestore(&timr->it_lock, flags);  in unlock_timer()
236 static inline int timer_overrun_to_int(struct k_itimer *timr, int baseval)  in timer_overrun_to_int()  argument
238 	s64 sum = timr->it_overrun_last + (s64)baseval;  in timer_overrun_to_int()
243 static void common_hrtimer_rearm(struct k_itimer *timr)  in common_hrtimer_rearm()  argument
245 	struct hrtimer *timer = &timr->it.real.timer;  in common_hrtimer_rearm()
247 	timr->it_overrun += hrtimer_forward(timer, timer->base->get_time(),  in common_hrtimer_rearm()
248 					    timr->it_interval);  in common_hrtimer_rearm()
259 	struct k_itimer *timr;  in posixtimer_rearm()  local
262 	timr = lock_timer(info->si_tid, &flags);  in posixtimer_rearm()
263 	if (!timr)  in posixtimer_rearm()
266 	if (timr->it_interval && timr->it_requeue_pending == info->si_sys_private) {  in posixtimer_rearm()
267 		timr->kclock->timer_rearm(timr);  in posixtimer_rearm()
269 		timr->it_active = 1;  in posixtimer_rearm()
270 		timr->it_overrun_last = timr->it_overrun;  in posixtimer_rearm()
271 		timr->it_overrun = -1LL;  in posixtimer_rearm()
272 		++timr->it_requeue_pending;  in posixtimer_rearm()
274 		info->si_overrun = timer_overrun_to_int(timr, info->si_overrun);  in posixtimer_rearm()
277 	unlock_timer(timr, flags);  in posixtimer_rearm()
280 int posix_timer_queue_signal(struct k_itimer *timr)  in posix_timer_queue_signal()  argument
285 	lockdep_assert_held(&timr->it_lock);  in posix_timer_queue_signal()
287 	timr->it_active = 0;  in posix_timer_queue_signal()
288 	if (timr->it_interval)  in posix_timer_queue_signal()
289 		si_private = ++timr->it_requeue_pending;  in posix_timer_queue_signal()
302 	timr->sigq->info.si_sys_private = si_private;  in posix_timer_queue_signal()
304 	type = !(timr->it_sigev_notify & SIGEV_THREAD_ID) ? PIDTYPE_TGID : PIDTYPE_PID;  in posix_timer_queue_signal()
305 	ret = send_sigqueue(timr->sigq, timr->it_pid, type);  in posix_timer_queue_signal()
319 	struct k_itimer *timr = container_of(timer, struct k_itimer, it.real.timer);  in posix_timer_fn()  local
323 	spin_lock_irqsave(&timr->it_lock, flags);  in posix_timer_fn()
325 	if (posix_timer_queue_signal(timr)) {  in posix_timer_fn()
332 		if (timr->it_interval != 0) {  in posix_timer_fn()
363 				if (timr->it_interval < kj)  in posix_timer_fn()
367 			timr->it_overrun += hrtimer_forward(timer, now, timr->it_interval);  in posix_timer_fn()
369 			++timr->it_requeue_pending;  in posix_timer_fn()
370 			timr->it_active = 1;  in posix_timer_fn()
374 	unlock_timer(timr, flags);  in posix_timer_fn()
563 	struct k_itimer *timr;  in __lock_timer()  local
594 	timr = posix_timer_by_id(timer_id);  in __lock_timer()
595 	if (timr) {  in __lock_timer()
596 		spin_lock_irqsave(&timr->it_lock, *flags);  in __lock_timer()
601 		if (timr->it_signal == current->signal) {  in __lock_timer()
603 			return timr;  in __lock_timer()
605 		spin_unlock_irqrestore(&timr->it_lock, *flags);  in __lock_timer()
612 static ktime_t common_hrtimer_remaining(struct k_itimer *timr, ktime_t now)  in common_hrtimer_remaining()  argument
614 	struct hrtimer *timer = &timr->it.real.timer;  in common_hrtimer_remaining()
619 static s64 common_hrtimer_forward(struct k_itimer *timr, ktime_t now)  in common_hrtimer_forward()  argument
621 	struct hrtimer *timer = &timr->it.real.timer;  in common_hrtimer_forward()
623 	return hrtimer_forward(timer, now, timr->it_interval);  in common_hrtimer_forward()
638 void common_timer_get(struct k_itimer *timr, struct itimerspec64 *cur_setting)  in common_timer_get()  argument
640 	const struct k_clock *kc = timr->kclock;  in common_timer_get()
644 	sig_none = timr->it_sigev_notify == SIGEV_NONE;  in common_timer_get()
645 	iv = timr->it_interval;  in common_timer_get()
650 	} else if (!timr->it_active) {  in common_timer_get()
663 	now = kc->clock_get_ktime(timr->it_clock);  in common_timer_get()
670 	if (iv && (timr->it_requeue_pending & REQUEUE_PENDING || sig_none))  in common_timer_get()
671 		timr->it_overrun += kc->timer_forward(timr, now);  in common_timer_get()
673 	remaining = kc->timer_remaining(timr, now);  in common_timer_get()
700 	struct k_itimer *timr;  in do_timer_gettime()  local
704 	timr = lock_timer(timer_id, &flags);  in do_timer_gettime()
705 	if (!timr)  in do_timer_gettime()
709 	kc = timr->kclock;  in do_timer_gettime()
713 		kc->timer_get(timr, setting);  in do_timer_gettime()
715 	unlock_timer(timr, flags);  in do_timer_gettime()
770 	struct k_itimer *timr;  in SYSCALL_DEFINE1()  local
774 	timr = lock_timer(timer_id, &flags);  in SYSCALL_DEFINE1()
775 	if (!timr)  in SYSCALL_DEFINE1()
778 	overrun = timer_overrun_to_int(timr, 0);  in SYSCALL_DEFINE1()
779 	unlock_timer(timr, flags);  in SYSCALL_DEFINE1()
784 static void common_hrtimer_arm(struct k_itimer *timr, ktime_t expires,  in common_hrtimer_arm()  argument
787 	struct hrtimer *timer = &timr->it.real.timer;  in common_hrtimer_arm()
800 	if (timr->it_clock == CLOCK_REALTIME)  in common_hrtimer_arm()
801 		timr->kclock = absolute ? &clock_realtime : &clock_monotonic;  in common_hrtimer_arm()
803 	hrtimer_init(&timr->it.real.timer, timr->it_clock, mode);  in common_hrtimer_arm()
804 	timr->it.real.timer.function = posix_timer_fn;  in common_hrtimer_arm()
814 static int common_hrtimer_try_to_cancel(struct k_itimer *timr)  in common_hrtimer_try_to_cancel()  argument
816 	return hrtimer_try_to_cancel(&timr->it.real.timer);  in common_hrtimer_try_to_cancel()
878 int common_timer_set(struct k_itimer *timr, int flags,  in common_timer_set()  argument
882 	const struct k_clock *kc = timr->kclock;  in common_timer_set()
887 		common_timer_get(timr, old_setting);  in common_timer_set()
890 	timr->it_interval = 0;  in common_timer_set()
895 	if (kc->timer_try_to_cancel(timr) < 0)  in common_timer_set()
898 	timr->it_active = 0;  in common_timer_set()
899 	posix_timer_set_common(timr, new_setting);  in common_timer_set()
907 		expires = timens_ktime_to_host(timr->it_clock, expires);  in common_timer_set()
908 	sigev_none = timr->it_sigev_notify == SIGEV_NONE;  in common_timer_set()
910 	kc->timer_arm(timr, expires, flags & TIMER_ABSTIME, sigev_none);  in common_timer_set()
911 	timr->it_active = !sigev_none;  in common_timer_set()
920 	struct k_itimer *timr;  in do_timer_settime()  local
931 	timr = lock_timer(timer_id, &flags);  in do_timer_settime()
933 	if (!timr)  in do_timer_settime()
937 		old_spec64->it_interval = ktime_to_timespec64(timr->it_interval);  in do_timer_settime()
939 	kc = timr->kclock;  in do_timer_settime()
943 		error = kc->timer_set(timr, tmr_flags, new_spec64, old_spec64);  in do_timer_settime()
949 		timr = timer_wait_running(timr, &flags);  in do_timer_settime()
952 	unlock_timer(timr, flags);  in do_timer_settime()