[PATCH 2/3] perf: Limit event refresh to sampling event

[Franck Bui-Huu]

From: Franck Bui-Huu <fbuihuu@xxxxxxxxx>

Signed-off-by: Franck Bui-Huu <fbuihuu@xxxxxxxxx>
---
 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 df7869f..813b09e 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -1072,7 +1072,7 @@ 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);
-- 
1.7.3.2

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