diff options
Diffstat (limited to 'kernel/time/tick-sched.c')
| -rw-r--r-- | kernel/time/tick-sched.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 5a9ff243588c..7c1412ea2d29 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -996,6 +996,10 @@ static void tick_nohz_handler(struct clock_event_device *dev) tick_sched_do_timer(now); tick_sched_handle(ts, regs); + /* No need to reprogram if we are running tickless */ + if (unlikely(ts->tick_stopped)) + return; + while (tick_nohz_reprogram(ts, now)) { now = ktime_get(); tick_do_update_jiffies64(now); @@ -1123,6 +1127,10 @@ static enum hrtimer_restart tick_sched_timer(struct hrtimer *timer) if (regs) tick_sched_handle(ts, regs); + /* No need to reprogram if we are in idle or full dynticks mode */ + if (unlikely(ts->tick_stopped)) + return HRTIMER_NORESTART; + hrtimer_forward(timer, now, tick_period); return HRTIMER_RESTART; |