diff --git a/include/linux/posix-timers.h b/include/linux/posix-timers.h
index 02afbb4da7f7..8c6d97412526 100644
--- a/include/linux/posix-timers.h
+++ b/include/linux/posix-timers.h
@@ -137,8 +137,6 @@ static inline void clear_posix_cputimers_work(struct task_struct *p) { }
 static inline void posix_cputimers_init_work(void) { }
 #endif
 
-#define REQUEUE_PENDING 1
-
 /**
  * struct k_itimer - POSIX.1b interval timer structure.
  * @list:		List head for binding the timer to signals->posix_timers
diff --git a/kernel/signal.c b/kernel/signal.c
index df34aa47181e..68e6bc70ccf2 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -550,10 +550,8 @@ static void collect_signal(int sig, struct sigpending *list, kernel_siginfo_t *i
 		list_del_init(&first->list);
 		copy_siginfo(info, &first->info);
 
-		*resched_timer =
-			(first->flags & SIGQUEUE_PREALLOC) &&
-			(info->si_code == SI_TIMER) &&
-			(info->si_sys_private);
+		*resched_timer = (first->flags & SIGQUEUE_PREALLOC) &&
+				 (info->si_code == SI_TIMER);
 
 		__sigqueue_free(first);
 	} else {
diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index 5f444e372464..4305c003c8d4 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -746,7 +746,7 @@ static void __posix_cpu_timer_get(struct k_itimer *timer, struct itimerspec64 *i
 	 *  - Timers which expired, but the signal has not yet been
 	 *    delivered
 	 */
-	if (iv && ((timer->it_signal_seq & REQUEUE_PENDING) || sigev_none))
+	if (iv && timer->it_status != POSIX_TIMER_ARMED)
 		expires = bump_cpu_timer(timer, now);
 	else
 		expires = cpu_timer_getexpires(&timer->it.cpu);
diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c
index dd72b8e72697..b380e25d4947 100644
--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -269,7 +269,10 @@ bool posixtimer_deliver_signal(struct kernel_siginfo *info)
 	if (!timr)
 		goto out;
 
-	if (timr->it_interval && timr->it_signal_seq == info->si_sys_private) {
+	if (timr->it_signal_seq != info->si_sys_private)
+		goto out_unlock;
+
+	if (timr->it_interval && !WARN_ON_ONCE(timr->it_status != POSIX_TIMER_REQUEUE_PENDING)) {
 		timr->kclock->timer_rearm(timr);
 
 		timr->it_status = POSIX_TIMER_ARMED;
@@ -281,6 +284,7 @@ bool posixtimer_deliver_signal(struct kernel_siginfo *info)
 	}
 	ret = true;
 
+out_unlock:
 	unlock_timer(timr, flags);
 out:
 	spin_lock(&current->sighand->siglock);
@@ -293,19 +297,18 @@ bool posixtimer_deliver_signal(struct kernel_siginfo *info)
 int posix_timer_queue_signal(struct k_itimer *timr)
 {
 	enum posix_timer_state state = POSIX_TIMER_DISARMED;
-	int ret, si_private = 0;
 	enum pid_type type;
+	int ret;
 
 	lockdep_assert_held(&timr->it_lock);
 
-	if (timr->it_interval) {
+	if (timr->it_interval)
 		state = POSIX_TIMER_REQUEUE_PENDING;
-		si_private = ++timr->it_signal_seq;
-	}
+
 	timr->it_status = state;
 
 	type = !(timr->it_sigev_notify & SIGEV_THREAD_ID) ? PIDTYPE_TGID : PIDTYPE_PID;
-	ret = send_sigqueue(timr->sigq, timr->it_pid, type, si_private);
+	ret = send_sigqueue(timr->sigq, timr->it_pid, type, timr->it_signal_seq);
 	/* If we failed to send the signal the timer stops. */
 	return ret > 0;
 }
@@ -663,7 +666,7 @@ void common_timer_get(struct k_itimer *timr, struct itimerspec64 *cur_setting)
 	 * is a SIGEV_NONE timer move the expiry time forward by intervals,
 	 * so expiry is > now.
 	 */
-	if (iv && (timr->it_signal_seq & REQUEUE_PENDING || sig_none))
+	if (iv && timr->it_status != POSIX_TIMER_ARMED)
 		timr->it_overrun += kc->timer_forward(timr, now);
 
 	remaining = kc->timer_remaining(timr, now);
@@ -863,8 +866,6 @@ void posix_timer_set_common(struct k_itimer *timer, struct itimerspec64 *new_set
 	else
 		timer->it_interval = 0;
 
-	/* Prevent reloading in case there is a signal pending */
-	timer->it_signal_seq = (timer->it_signal_seq + 2) & ~REQUEUE_PENDING;
 	/* Reset overrun accounting */
 	timer->it_overrun_last = 0;
 	timer->it_overrun = -1LL;
@@ -882,8 +883,6 @@ int common_timer_set(struct k_itimer *timr, int flags,
 	if (old_setting)
 		common_timer_get(timr, old_setting);
 
-	/* Prevent rearming by clearing the interval */
-	timr->it_interval = 0;
 	/*
 	 * Careful here. On SMP systems the timer expiry function could be
 	 * active and spinning on timr->it_lock.
@@ -933,6 +932,9 @@ static int do_timer_settime(timer_t timer_id, int tmr_flags,
 	if (old_spec64)
 		old_spec64->it_interval = ktime_to_timespec64(timr->it_interval);
 
+	/* Prevent signal delivery and rearming. */
+	timr->it_signal_seq++;
+
 	kc = timr->kclock;
 	if (WARN_ON_ONCE(!kc || !kc->timer_set))
 		error = -EINVAL;
@@ -1001,7 +1003,6 @@ int common_timer_del(struct k_itimer *timer)
 {
 	const struct k_clock *kc = timer->kclock;
 
-	timer->it_interval = 0;
 	if (kc->timer_try_to_cancel(timer) < 0)
 		return TIMER_RETRY;
 	timer->it_status = POSIX_TIMER_DISARMED;
@@ -1012,6 +1013,9 @@ static inline int timer_delete_hook(struct k_itimer *timer)
 {
 	const struct k_clock *kc = timer->kclock;
 
+	/* Prevent signal delivery and rearming. */
+	timer->it_signal_seq++;
+
 	if (WARN_ON_ONCE(!kc || !kc->timer_del))
 		return -EINVAL;
 	return kc->timer_del(timer);