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posix-cpu-timers: Use clock ID in posix_cpu_timer_get() 

Extract the clock ID (PROF/VIRT/SCHED) from the clock selector and use it
as argument to the sample functions. That allows to simplify them once all
callers are fixed.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lkml.kernel.org/r/20190821192920.155487201@linutronix.de
This commit is contained in:
Thomas Gleixner 2019-08-21 21:08:57 +02:00
parent c7a37c6f4c
commit 99093c5b81
1 changed files with 3 additions and 2 deletions
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5
kernel/time/posix-cpu-timers.c
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@ -699,6 +699,7 @@ static int posix_cpu_timer_set(struct k_itimer *timer, int timer_flags,
static void posix_cpu_timer_get(struct k_itimer *timer, struct itimerspec64 *itp)
{
clockid_t clkid = CPUCLOCK_WHICH(timer->it_clock);
struct task_struct *p = timer->it.cpu.task;
u64 now;
@ -717,7 +718,7 @@ static void posix_cpu_timer_get(struct k_itimer *timer, struct itimerspec64 *itp
* Sample the clock to take the difference with the expiry time.
*/
if (CPUCLOCK_PERTHREAD(timer->it_clock)) {
cpu_clock_sample(timer->it_clock, p, &now);
cpu_clock_sample(clkid, p, &now);
} else {
struct sighand_struct *sighand;
unsigned long flags;
@ -737,7 +738,7 @@ static void posix_cpu_timer_get(struct k_itimer *timer, struct itimerspec64 *itp
timer->it.cpu.expires = 0;
return;
} else {
cpu_clock_sample_group(timer->it_clock, p, &now, false);
cpu_clock_sample_group(clkid, p, &now, false);
unlock_task_sighand(p, &flags);
}
}