perf_counter: avoid recursion

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Tracepoint events like lock_acquire and software counters like
pagefaults can recurse into the perf counter code again, avoid that.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Orig-LKML-Reference: <20090323172417.152096433@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Peter Zijlstra 2009-03-23 18:22:07 +01:00 • committed by Ingo Molnar

parent f4a2deb486

commit 96f6d44443

2 changed files with 33 additions and 0 deletions

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7

include/linux/perf_counter.h

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26

kernel/perf_counter.c

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