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perf counters: add prctl interface to disable/enable counters
authorIngo Molnar <mingo@elte.hu>
Thu, 11 Dec 2008 13:59:31 +0000 (14:59 +0100)
committerIngo Molnar <mingo@elte.hu>
Thu, 11 Dec 2008 14:45:55 +0000 (15:45 +0100)
Add a way for self-monitoring tasks to disable/enable counters summarily,
via a prctl:

PR_TASK_PERF_COUNTERS_DISABLE 31
PR_TASK_PERF_COUNTERS_ENABLE 32

Signed-off-by: Ingo Molnar <mingo@elte.hu>

No differences found
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