5630 				 struct perf_event *output_event);
5676 			struct perf_event *output_event;  in _perf_ioctl()  local
5681 			output_event = output.file->private_data;  in _perf_ioctl()
5682 			ret = perf_event_set_output(event, output_event);  in _perf_ioctl()
12018 perf_event_set_output(struct perf_event *event, struct perf_event *output_event)  in perf_event_set_output()  argument
12023 	if (!output_event) {  in perf_event_set_output()
12029 	if (event == output_event)  in perf_event_set_output()
12035 	if (output_event->cpu != event->cpu)  in perf_event_set_output()
12041 	if (output_event->cpu == -1 && output_event->ctx != event->ctx)  in perf_event_set_output()
12047 	if (output_event->clock != event->clock)  in perf_event_set_output()
12054 	if (is_write_backward(output_event) != is_write_backward(event))  in perf_event_set_output()
12060 	if (has_aux(event) && has_aux(output_event) &&  in perf_event_set_output()
12061 	    event->pmu != output_event->pmu)  in perf_event_set_output()
12071 	mutex_lock_double(&event->mmap_mutex, &output_event->mmap_mutex);  in perf_event_set_output()
12077 	if (output_event) {  in perf_event_set_output()
12079 		rb = ring_buffer_get(output_event);  in perf_event_set_output()
12095 	if (output_event)  in perf_event_set_output()
12096 		mutex_unlock(&output_event->mmap_mutex);  in perf_event_set_output()
12214 	struct perf_event *group_leader = NULL, *output_event = NULL;  in SYSCALL_DEFINE5()  local
12296 			output_event = group_leader;  in SYSCALL_DEFINE5()
12430 	if (output_event) {  in SYSCALL_DEFINE5()
12431 		err = perf_event_set_output(event, output_event);  in SYSCALL_DEFINE5()