diff options
Diffstat (limited to 'kernel/trace/ring_buffer.c')
| -rw-r--r-- | kernel/trace/ring_buffer.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index bffde630c4e..e145969a8ed 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -1642,6 +1642,14 @@ int ring_buffer_unlock_commit(struct ring_buffer *buffer, } EXPORT_SYMBOL_GPL(ring_buffer_unlock_commit); +static inline void rb_event_discard(struct ring_buffer_event *event) +{ + event->type = RINGBUF_TYPE_PADDING; + /* time delta must be non zero */ + if (!event->time_delta) + event->time_delta = 1; +} + /** * ring_buffer_event_discard - discard any event in the ring buffer * @event: the event to discard @@ -1656,10 +1664,8 @@ EXPORT_SYMBOL_GPL(ring_buffer_unlock_commit); */ void ring_buffer_event_discard(struct ring_buffer_event *event) { - event->type = RINGBUF_TYPE_PADDING; - /* time delta must be non zero */ - if (!event->time_delta) - event->time_delta = 1; + rb_event_discard(event); + trace_recursive_unlock(); } EXPORT_SYMBOL_GPL(ring_buffer_event_discard); @@ -1690,7 +1696,7 @@ void ring_buffer_discard_commit(struct ring_buffer *buffer, int cpu; /* The event is discarded regardless */ - ring_buffer_event_discard(event); + rb_event_discard(event); /* * This must only be called if the event has not been @@ -1735,6 +1741,8 @@ void ring_buffer_discard_commit(struct ring_buffer *buffer, if (rb_is_commit(cpu_buffer, event)) rb_set_commit_to_write(cpu_buffer); + trace_recursive_unlock(); + /* * Only the last preempt count needs to restore preemption. */ |