77 static inline void unlock_timer(struct k_itimer *timr)  in unlock_timer()  argument
79 	if (likely((timr)))  in unlock_timer()
80 		spin_unlock_irq(&timr->it_lock);  in unlock_timer()
298 static inline int timer_overrun_to_int(struct k_itimer *timr)  in timer_overrun_to_int()  argument
300 	if (timr->it_overrun_last > (s64)INT_MAX)  in timer_overrun_to_int()
303 	return (int)timr->it_overrun_last;  in timer_overrun_to_int()
306 static void common_hrtimer_rearm(struct k_itimer *timr)  in common_hrtimer_rearm()  argument
308 	struct hrtimer *timer = &timr->it.real.timer;  in common_hrtimer_rearm()
310 	timr->it_overrun += hrtimer_forward(timer, timer->base->get_time(),  in common_hrtimer_rearm()
311 					    timr->it_interval);  in common_hrtimer_rearm()
315 static bool __posixtimer_deliver_signal(struct kernel_siginfo *info, struct k_itimer *timr)  in __posixtimer_deliver_signal()  argument
317 	guard(spinlock)(&timr->it_lock);  in __posixtimer_deliver_signal()
324 	if (timr->it_signal_seq != timr->it_sigqueue_seq || WARN_ON_ONCE(!posixtimer_valid(timr)))  in __posixtimer_deliver_signal()
327 	if (!timr->it_interval || WARN_ON_ONCE(timr->it_status != POSIX_TIMER_REQUEUE_PENDING))  in __posixtimer_deliver_signal()
330 	timr->kclock->timer_rearm(timr);  in __posixtimer_deliver_signal()
331 	timr->it_status = POSIX_TIMER_ARMED;  in __posixtimer_deliver_signal()
332 	timr->it_overrun_last = timr->it_overrun;  in __posixtimer_deliver_signal()
333 	timr->it_overrun = -1LL;  in __posixtimer_deliver_signal()
334 	++timr->it_signal_seq;  in __posixtimer_deliver_signal()
335 	info->si_overrun = timer_overrun_to_int(timr);  in __posixtimer_deliver_signal()
347 	struct k_itimer *timr = container_of(timer_sigq, struct k_itimer, sigq);  in posixtimer_deliver_signal()  local
356 	ret = __posixtimer_deliver_signal(info, timr);  in posixtimer_deliver_signal()
359 	posixtimer_putref(timr);  in posixtimer_deliver_signal()
365 void posix_timer_queue_signal(struct k_itimer *timr)  in posix_timer_queue_signal()  argument
367 	lockdep_assert_held(&timr->it_lock);  in posix_timer_queue_signal()
369 	if (!posixtimer_valid(timr))  in posix_timer_queue_signal()
372 	timr->it_status = timr->it_interval ? POSIX_TIMER_REQUEUE_PENDING : POSIX_TIMER_DISARMED;  in posix_timer_queue_signal()
373 	posixtimer_send_sigqueue(timr);  in posix_timer_queue_signal()
385 	struct k_itimer *timr = container_of(timer, struct k_itimer, it.real.timer);  in posix_timer_fn()  local
387 	guard(spinlock_irqsave)(&timr->it_lock);  in posix_timer_fn()
388 	posix_timer_queue_signal(timr);  in posix_timer_fn()
614 	struct k_itimer *timr;  in __lock_timer()  local
652 	timr = posix_timer_by_id(timer_id);  in __lock_timer()
653 	if (timr) {  in __lock_timer()
654 		spin_lock_irq(&timr->it_lock);  in __lock_timer()
659 		if (timr->it_signal == current->signal)  in __lock_timer()
660 			return timr;  in __lock_timer()
661 		spin_unlock_irq(&timr->it_lock);  in __lock_timer()
666 static ktime_t common_hrtimer_remaining(struct k_itimer *timr, ktime_t now)  in common_hrtimer_remaining()  argument
668 	struct hrtimer *timer = &timr->it.real.timer;  in common_hrtimer_remaining()
673 static s64 common_hrtimer_forward(struct k_itimer *timr, ktime_t now)  in common_hrtimer_forward()  argument
675 	struct hrtimer *timer = &timr->it.real.timer;  in common_hrtimer_forward()
677 	return hrtimer_forward(timer, now, timr->it_interval);  in common_hrtimer_forward()
692 void common_timer_get(struct k_itimer *timr, struct itimerspec64 *cur_setting)  in common_timer_get()  argument
694 	const struct k_clock *kc = timr->kclock;  in common_timer_get()
698 	sig_none = timr->it_sigev_notify == SIGEV_NONE;  in common_timer_get()
699 	iv = timr->it_interval;  in common_timer_get()
704 	} else if (timr->it_status == POSIX_TIMER_DISARMED) {  in common_timer_get()
717 	now = kc->clock_get_ktime(timr->it_clock);  in common_timer_get()
724 	if (iv && timr->it_status != POSIX_TIMER_ARMED)  in common_timer_get()
725 		timr->it_overrun += kc->timer_forward(timr, now);  in common_timer_get()
727 	remaining = kc->timer_remaining(timr, now);  in common_timer_get()
814 static void common_hrtimer_arm(struct k_itimer *timr, ktime_t expires,  in common_hrtimer_arm()  argument
817 	struct hrtimer *timer = &timr->it.real.timer;  in common_hrtimer_arm()
830 	if (timr->it_clock == CLOCK_REALTIME)  in common_hrtimer_arm()
831 		timr->kclock = absolute ? &clock_realtime : &clock_monotonic;  in common_hrtimer_arm()
833 	hrtimer_setup(&timr->it.real.timer, posix_timer_fn, timr->it_clock, mode);  in common_hrtimer_arm()
843 static int common_hrtimer_try_to_cancel(struct k_itimer *timr)  in common_hrtimer_try_to_cancel()  argument
845 	return hrtimer_try_to_cancel(&timr->it.real.timer);  in common_hrtimer_try_to_cancel()
892 int common_timer_set(struct k_itimer *timr, int flags,  in common_timer_set()  argument
896 	const struct k_clock *kc = timr->kclock;  in common_timer_set()
901 		common_timer_get(timr, old_setting);  in common_timer_set()
907 	if (kc->timer_try_to_cancel(timr) < 0)  in common_timer_set()
910 	timr->it_status = POSIX_TIMER_DISARMED;  in common_timer_set()
911 	posix_timer_set_common(timr, new_setting);  in common_timer_set()
919 		expires = timens_ktime_to_host(timr->it_clock, expires);  in common_timer_set()
920 	sigev_none = timr->it_sigev_notify == SIGEV_NONE;  in common_timer_set()
922 	kc->timer_arm(timr, expires, flags & TIMER_ABSTIME, sigev_none);  in common_timer_set()
924 		timr->it_status = POSIX_TIMER_ARMED;  in common_timer_set()
939 		struct k_itimer *timr;  in do_timer_settime()  local
942 			timr = scoped_timer;  in do_timer_settime()
945 				old_spec64->it_interval = ktime_to_timespec64(timr->it_interval);  in do_timer_settime()
948 			timr->it_signal_seq++;  in do_timer_settime()
950 			int ret = timr->kclock->timer_set(timr, tmr_flags, new_spec64, old_spec64);  in do_timer_settime()
957 		timer_wait_running(timr);  in do_timer_settime()