[tip:perf/core] perf: Limit event refresh to sampling event

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Commit-ID:  2e939d1da9b5628642314c1e68b4319e61263c94
Gitweb:     http://git.kernel.org/tip/2e939d1da9b5628642314c1e68b4319e61263c94
Author:     Franck Bui-Huu <fbuihuu@xxxxxxxxx>
AuthorDate: Tue, 23 Nov 2010 16:21:44 +0100
Committer:  Ingo Molnar <mingo@xxxxxxx>
CommitDate: Fri, 26 Nov 2010 15:14:55 +0100

perf: Limit event refresh to sampling event

Signed-off-by: Franck Bui-Huu <fbuihuu@xxxxxxxxx>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
LKML-Reference: <1290525705-6265-2-git-send-email-fbuihuu@xxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
 kernel/perf_event.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 8806984..027c4d3 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -1073,7 +1073,7 @@ static int perf_event_refresh(struct perf_event *event, int refresh)
 	/*
 	 * not supported on inherited events
 	 */
-	if (event->attr.inherit)
+	if (event->attr.inherit || !is_sampling_event(event))
 		return -EINVAL;
 
 	atomic_add(refresh, &event->event_limit);
--
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