diff options
Diffstat (limited to 'kernel/perf_event.c')
| -rw-r--r-- | kernel/perf_event.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c index 98c5549..af1e63f 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -4240,6 +4240,13 @@ static int __perf_event_overflow(struct perf_event *event, int nmi, struct hw_perf_event *hwc = &event->hw; int ret = 0; + /* + * Non-sampling counters might still use the PMI to fold short + * hardware counters, ignore those. + */ + if (unlikely(!is_sampling_event(event))) + return 0; + if (!throttle) { hwc->interrupts++; } else { |
