diff options
| -rw-r--r-- | include/linux/hrtimer.h | 3 | ||||
| -rw-r--r-- | kernel/hrtimer.c | 12 | ||||
| -rw-r--r-- | kernel/timer.c | 2 |
3 files changed, 16 insertions, 1 deletions
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index 5bdbc744e77..17c29dca835 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -206,6 +206,7 @@ struct hrtimer_cpu_base { struct clock_event_device; extern void clock_was_set(void); +extern void hres_timers_resume(void); extern void hrtimer_interrupt(struct clock_event_device *dev); /* @@ -236,6 +237,8 @@ static inline ktime_t hrtimer_cb_get_time(struct hrtimer *timer) */ static inline void clock_was_set(void) { } +static inline void hres_timers_resume(void) { } + /* * In non high resolution mode the time reference is taken from * the base softirq time variable. diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c index 067ba2c0532..b74860aaf5f 100644 --- a/kernel/hrtimer.c +++ b/kernel/hrtimer.c @@ -459,6 +459,18 @@ void clock_was_set(void) } /* + * During resume we might have to reprogram the high resolution timer + * interrupt (on the local CPU): + */ +void hres_timers_resume(void) +{ + WARN_ON_ONCE(num_online_cpus() > 1); + + /* Retrigger the CPU local events: */ + retrigger_next_event(NULL); +} + +/* * Check, whether the timer is on the callback pending list */ static inline int hrtimer_cb_pending(const struct hrtimer *timer) diff --git a/kernel/timer.c b/kernel/timer.c index 440048acaea..dd6c2c1c561 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -1016,7 +1016,7 @@ static int timekeeping_resume(struct sys_device *dev) clockevents_notify(CLOCK_EVT_NOTIFY_RESUME, NULL); /* Resume hrtimers */ - clock_was_set(); + hres_timers_resume(); return 0; } |