diff options
Diffstat (limited to 'kernel/hrtimer.c')
| -rw-r--r-- | kernel/hrtimer.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c index ae34bf51682b..1a3695e32b4b 100644 --- a/kernel/hrtimer.c +++ b/kernel/hrtimer.c @@ -49,6 +49,7 @@ #include <asm/uaccess.h> #include <trace/events/timer.h> +#include <trace/events/hist.h> /* * The timer bases: @@ -1236,6 +1237,8 @@ static void __run_hrtimer(struct hrtimer *timer, ktime_t *now) #ifdef CONFIG_HIGH_RES_TIMERS +static enum hrtimer_restart hrtimer_wakeup(struct hrtimer *timer); + /* * High resolution timer interrupt * Called with interrupts disabled @@ -1280,6 +1283,14 @@ retry: timer = container_of(node, struct hrtimer, node); + trace_hrtimer_interrupt(raw_smp_processor_id(), + ktime_to_ns(ktime_sub( + hrtimer_get_expires(timer), basenow)), + current, + timer->function == hrtimer_wakeup ? + container_of(timer, struct hrtimer_sleeper, + timer)->task : NULL); + /* * The immediate goal for using the softexpires is * minimizing wakeups, not running timers at the |