Will Deacon 5f5092e72c ARM: perf: hook up perf_sample_event_took around pmu irq handling ...

Since we indirect all of our PMU IRQ handling through a dispatcher, it's
trivial to hook up perf_sample_event_took to prevent applications such
as oprofile from generating interrupt storms due to an unrealisticly
low sample period.

Reported-by: Robert Richter <rric@kernel.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>

2014-02-21 11:11:21 +00:00

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