Re: [PATCH v2 2/3] perf: use hrtimer for event multiplexing

[Peter Zijlstra]

On Wed, 2012-09-12 at 16:43 +0200, Stephane Eranian wrote:
> The hrtimer_active is used to prevent activating the timer multiple times
> in a row. 

see hrtimer_active(), this should do what you want I think.
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