diff options
Diffstat (limited to 'kernel/sched/core.c')
| -rw-r--r-- | kernel/sched/core.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 13f5857a15b..7f3063c153d 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -740,10 +740,11 @@ bool sched_can_stop_tick(void) rq = this_rq(); - /* Make sure rq->nr_running update is visible after the IPI */ - smp_rmb(); - - /* More than one running task need preemption */ + /* + * More than one running task need preemption. + * nr_running update is assumed to be visible + * after IPI is sent from wakers. + */ if (rq->nr_running > 1) return false; |