diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/perf_event.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c index 7a93252..1531e0b 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -3056,8 +3056,8 @@ int perf_output_begin(struct perf_output_handle *handle, handle->offset = offset; handle->head = head; - if (head - tail > data->watermark) - local_inc(&data->wakeup); + if (head - local_read(&data->wakeup) > data->watermark) + local_add(data->watermark, &data->wakeup); if (have_lost) { lost_event.header.type = PERF_RECORD_LOST; |