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Diffstat (limited to 'kernel/events/ring_buffer.c')
-rw-r--r--kernel/events/ring_buffer.c19
1 files changed, 1 insertions, 18 deletions
diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c
index 8b3b73630fa4..a2a29205cc0f 100644
--- a/kernel/events/ring_buffer.c
+++ b/kernel/events/ring_buffer.c
@@ -98,8 +98,7 @@ out:
}
int perf_output_begin(struct perf_output_handle *handle,
- struct perf_event *event, unsigned int size,
- int sample)
+ struct perf_event *event, unsigned int size)
{
struct ring_buffer *rb;
unsigned long tail, offset, head;
@@ -124,7 +123,6 @@ int perf_output_begin(struct perf_output_handle *handle,
handle->rb = rb;
handle->event = event;
- handle->sample = sample;
if (!rb->nr_pages)
goto out;
@@ -192,21 +190,6 @@ void perf_output_copy(struct perf_output_handle *handle,
void perf_output_end(struct perf_output_handle *handle)
{
- struct perf_event *event = handle->event;
- struct ring_buffer *rb = handle->rb;
-
- 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);
- }
- }
- }
-
perf_output_put_handle(handle);
rcu_read_unlock();
}