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posix-cpu-timers: Save interval only for armed timers

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There is no point to return the interval for timers which have been
disarmed.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
This commit is contained in:
Thomas Gleixner
2024-06-10 18:42:15 +02:00
committed by Frederic Weisbecker
parent d859704bf1
commit b3e866b2df
1 changed files with 6 additions and 8 deletions
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14
kernel/time/posix-cpu-timers.c
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@@ -809,17 +809,15 @@ static void posix_cpu_timer_get(struct k_itimer *timer, struct itimerspec64 *itp
rcu_read_lock();
p = cpu_timer_task_rcu(timer);
if (p) {
if (p && cpu_timer_getexpires(&timer->it.cpu)) {
itp->it_interval = ktime_to_timespec64(timer->it_interval);
if (cpu_timer_getexpires(&timer->it.cpu)) {
if (CPUCLOCK_PERTHREAD(timer->it_clock))
now = cpu_clock_sample(clkid, p);
else
now = cpu_clock_sample_group(clkid, p, false);
if (CPUCLOCK_PERTHREAD(timer->it_clock))
now = cpu_clock_sample(clkid, p);
else
now = cpu_clock_sample_group(clkid, p, false);
__posix_cpu_timer_get(timer, itp, now);
}
__posix_cpu_timer_get(timer, itp, now);
}
rcu_read_unlock();
}