perf_events, x86: Clean up hw_perf_*_all() implementation
Put the recursion avoidance code in the generic hook instead of replicating it in each implementation. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> LKML-Reference: <20100127221122.057507285@chello.nl> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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