diff options
| -rw-r--r-- | drivers/cpuidle/cpuidle.c | 1 | ||||
| -rw-r--r-- | kernel/sched/clock.c | 11 |
2 files changed, 10 insertions, 2 deletions
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index 2706be7ed334..60bb64f4329d 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -220,6 +220,7 @@ int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv, entered_state = target_state->enter(dev, drv, index); start_critical_timings(); + sched_clock_idle_wakeup_event(); time_end = ns_to_ktime(local_clock()); trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, dev->cpu); diff --git a/kernel/sched/clock.c b/kernel/sched/clock.c index c30c05f05d6f..d4c2f89fac92 100644 --- a/kernel/sched/clock.c +++ b/kernel/sched/clock.c @@ -410,14 +410,21 @@ void sched_clock_idle_sleep_event(void) EXPORT_SYMBOL_GPL(sched_clock_idle_sleep_event); /* - * We just idled; resync with ktime. (called with irqs disabled): + * We just idled; resync with ktime. */ void sched_clock_idle_wakeup_event(void) { - if (timekeeping_suspended) + unsigned long flags; + + if (sched_clock_stable()) + return; + + if (unlikely(timekeeping_suspended)) return; + local_irq_save(flags); sched_clock_tick(); + local_irq_restore(flags); } EXPORT_SYMBOL_GPL(sched_clock_idle_wakeup_event); |