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Code Issues Releases Wiki Activity

perf: core: Use hrtimer_start()

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hrtimer_start() does not longer defer already expired timers to the
softirq. Get rid of the __hrtimer_start_range_ns() invocation.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/20150414203502.452104213@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2015-04-14 21:09:03 +00:00
parent 576b0704c9
commit 3497d206c4
1 changed files with 3 additions and 6 deletions
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9
kernel/events/core.c
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@ -834,9 +834,7 @@ static void perf_cpu_hrtimer_restart(struct perf_cpu_context *cpuctx)
if (hrtimer_active(hr))
return;
if (!hrtimer_callback_running(hr))
__hrtimer_start_range_ns(hr, cpuctx->hrtimer_interval,
0, HRTIMER_MODE_REL_PINNED, 0);
hrtimer_start(hr, cpuctx->hrtimer_interval, HRTIMER_MODE_REL_PINNED);
}
void perf_pmu_disable(struct pmu *pmu)
@ -6843,9 +6841,8 @@ static void perf_swevent_start_hrtimer(struct perf_event *event)
} else {
period = max_t(u64, 10000, hwc->sample_period);
}
__hrtimer_start_range_ns(&hwc->hrtimer,
ns_to_ktime(period), 0,
HRTIMER_MODE_REL_PINNED, 0);
hrtimer_start(&hwc->hrtimer, ns_to_ktime(period),
HRTIMER_MODE_REL_PINNED);
}
static void perf_swevent_cancel_hrtimer(struct perf_event *event)