On Thu, Aug 24, 2017 at 06:27:28PM +0200, Jiri Olsa wrote: > Mark reported that we could actually call pmu->read on > unscheduled event. I think it's good idea to keep a > warning here to see if we've get it wrong again in > future. > > Reported-by: Mark Rutland <mark.rutl...@arm.com> > Signed-off-by: Jiri Olsa <jo...@kernel.org>
Yeah, no objection to this one. Ack > --- > arch/x86/events/core.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c > index af12e294caed..b8e394d9f7f2 100644 > --- a/arch/x86/events/core.c > +++ b/arch/x86/events/core.c > @@ -72,6 +72,8 @@ u64 x86_perf_event_update(struct perf_event *event) > int idx = hwc->idx; > u64 delta; > > + WARN_ON_ONCE(event->oncpu != smp_processor_id()); > + > if (idx == INTEL_PMC_IDX_FIXED_BTS) > return 0; > > -- > 2.9.5 >
