diff options
Diffstat (limited to 'kernel/hrtimer.c')
| -rw-r--r-- | kernel/hrtimer.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c index 6a7938a..1b30331 100644 --- a/kernel/hrtimer.c +++ b/kernel/hrtimer.c @@ -59,6 +59,7 @@ ktime_t ktime_get(void) return timespec_to_ktime(now); } +EXPORT_SYMBOL_GPL(ktime_get); /** * ktime_get_real - get the real (wall-) time in ktime_t format @@ -278,6 +279,8 @@ ktime_t ktime_add_ns(const ktime_t kt, u64 nsec) return ktime_add(kt, tmp); } + +EXPORT_SYMBOL_GPL(ktime_add_ns); # endif /* !CONFIG_KTIME_SCALAR */ /* @@ -459,6 +462,18 @@ 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) @@ -814,7 +829,12 @@ hrtimer_start(struct hrtimer *timer, ktime_t tim, const enum hrtimer_mode mode) timer_stats_hrtimer_set_start_info(timer); - enqueue_hrtimer(timer, new_base, base == new_base); + /* + * Only allow reprogramming if the new base is on this CPU. + * (it might still be on another CPU if the timer was pending) + */ + enqueue_hrtimer(timer, new_base, + new_base->cpu_base == &__get_cpu_var(hrtimer_bases)); unlock_hrtimer_base(timer, &flags); |
