From: Ingo Molnar <mingo@elte.hu>
Date: Thu, 11 Dec 2008 13:59:31 +0000 (+0100)
Subject: perf counters: add prctl interface to disable/enable counters
X-Git-Tag: v2.6.31-rc1~383^2~572
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1d1c7ddbfab358445a542715551301b7fc363e28;p=pandora-kernel.git

perf counters: add prctl interface to disable/enable counters

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>
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