Messages in this thread | | | Subject | Re: [PATCH -rt] perf: make swevent hrtimer run in irq instead of softirq | From | Peter Zijlstra <> | Date | Thu, 05 Jul 2012 10:29:05 +0200 |
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On Thu, 2012-07-05 at 16:21 +0800, Yong Zhang wrote: > diff --git a/kernel/events/core.c b/kernel/events/core.c > index fd126f8..451d452 100644 > --- a/kernel/events/core.c > +++ b/kernel/events/core.c > @@ -5403,6 +5403,7 @@ static void perf_swevent_init_hrtimer(struct perf_event *event) > > hrtimer_init(&hwc->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); > hwc->hrtimer.function = perf_swevent_hrtimer; > + hwc->hrtimer.irqsafe = 1; > > /* > * Since hrtimers have a fixed rate, we can do a static freq->period
Yes this is correct.. curious we lost that. I'm sure I've done this before.
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