10402 		 struct perf_event *parent_event,  in perf_event_alloc()  argument
10454 	event->parent		= parent_event;  in perf_event_alloc()
10472 	if (parent_event)  in perf_event_alloc()
10473 		event->clock = parent_event->clock;  in perf_event_alloc()
10475 	if (!overflow_handler && parent_event) {  in perf_event_alloc()
10476 		overflow_handler = parent_event->overflow_handler;  in perf_event_alloc()
10477 		context = parent_event->overflow_handler_context;  in perf_event_alloc()
10480 			struct bpf_prog *prog = bpf_prog_inc(parent_event->prog);  in perf_event_alloc()
10488 				parent_event->orig_overflow_handler;  in perf_event_alloc()
11472 	struct perf_event *parent_event = child_event->parent;  in sync_child_event()  local
11483 	atomic64_add(child_val, &parent_event->child_count);  in sync_child_event()
11485 		     &parent_event->child_total_time_enabled);  in sync_child_event()
11487 		     &parent_event->child_total_time_running);  in sync_child_event()
11495 	struct perf_event *parent_event = child_event->parent;  in perf_event_exit_event()  local
11512 	if (parent_event)  in perf_event_exit_event()
11521 	if (!parent_event) {  in perf_event_exit_event()
11534 	WARN_ON_ONCE(parent_event->ctx->parent_ctx);  in perf_event_exit_event()
11535 	mutex_lock(&parent_event->child_mutex);  in perf_event_exit_event()
11537 	mutex_unlock(&parent_event->child_mutex);  in perf_event_exit_event()
11542 	perf_event_wakeup(parent_event);  in perf_event_exit_event()
11544 	put_event(parent_event);  in perf_event_exit_event()
11768 inherit_event(struct perf_event *parent_event,  in inherit_event()  argument
11775 	enum perf_event_state parent_state = parent_event->state;  in inherit_event()
11785 	if (parent_event->parent)  in inherit_event()
11786 		parent_event = parent_event->parent;  in inherit_event()
11788 	child_event = perf_event_alloc(&parent_event->attr,  in inherit_event()
11789 					   parent_event->cpu,  in inherit_event()
11791 					   group_leader, parent_event,  in inherit_event()
11815 	mutex_lock(&parent_event->child_mutex);  in inherit_event()
11816 	if (is_orphaned_event(parent_event) ||  in inherit_event()
11817 	    !atomic_long_inc_not_zero(&parent_event->refcount)) {  in inherit_event()
11818 		mutex_unlock(&parent_event->child_mutex);  in inherit_event()
11836 	if (parent_event->attr.freq) {  in inherit_event()
11837 		u64 sample_period = parent_event->hw.sample_period;  in inherit_event()
11847 	child_event->overflow_handler = parent_event->overflow_handler;  in inherit_event()
11849 		= parent_event->overflow_handler_context;  in inherit_event()
11867 	list_add_tail(&child_event->child_list, &parent_event->child_list);  in inherit_event()
11868 	mutex_unlock(&parent_event->child_mutex);  in inherit_event()
11883 static int inherit_group(struct perf_event *parent_event,  in inherit_group()  argument
11893 	leader = inherit_event(parent_event, parent, parent_ctx,  in inherit_group()
11902 	for_each_sibling_event(sub, parent_event) {  in inherit_group()
11908 		if (sub->aux_event == parent_event && child_ctr &&  in inherit_group()