commit 1d1c7ddbfab358445a542715551301b7fc363e28
author Ingo Molnar <mingo@elte.hu> Thu Dec 11 14:59:31 2008 +0100
committer Ingo Molnar <mingo@elte.hu> Thu Dec 11 15:45:55 2008 +0100
tree d4421834d109b206f39c2019ea039fd42ed22e1d
parent bae43c9945ebeef15e7952e317efb02393d3bfc7

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>

include/linux/prctl.h

diff --git a/include/linux/prctl.h b/include/linux/prctl.h
index 48d887e..b00df4c 100644
--- a/include/linux/prctl.h
+++ b/include/linux/prctl.h
@@ -85,4 +85,7 @@
 #define PR_SET_TIMERSLACK 29
 #define PR_GET_TIMERSLACK 30
 
+#define PR_TASK_PERF_COUNTERS_DISABLE		31
+#define PR_TASK_PERF_COUNTERS_ENABLE		32
+
 #endif /* _LINUX_PRCTL_H */