sm_ref            387 kernel/trace/trace_events.c 			if (atomic_dec_return(&file->sm_ref) > 0)
sm_ref            426 kernel/trace/trace_events.c 			if (atomic_inc_return(&file->sm_ref) > 1)
sm_ref           2255 kernel/trace/trace_events.c 	atomic_set(&file->sm_ref, 0);