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-rw-r--r--kernel/events/ring_buffer.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c
index fde52595d8f..fc2701c9920 100644
--- a/kernel/events/ring_buffer.c
+++ b/kernel/events/ring_buffer.c
@@ -199,13 +199,15 @@ void perf_output_end(struct perf_output_handle *handle)
struct perf_event *event = handle->event;
struct ring_buffer *rb = handle->rb;
- int wakeup_events = event->attr.wakeup_events;
-
- if (handle->sample && wakeup_events) {
- int events = local_inc_return(&rb->events);
- if (events >= wakeup_events) {
- local_sub(wakeup_events, &rb->events);
- local_inc(&rb->wakeup);
+ if (handle->sample && !event->attr.watermark) {
+ int wakeup_events = event->attr.wakeup_events;
+
+ if (wakeup_events) {
+ int events = local_inc_return(&rb->events);
+ if (events >= wakeup_events) {
+ local_sub(wakeup_events, &rb->events);
+ local_inc(&rb->wakeup);
+ }
}
}