613 	struct perf_event *leader = event->group_leader;  in __perf_effective_state()
922 				      struct perf_event *group_leader)  in perf_cgroup_connect()  argument
951 	if (group_leader && group_leader->cgrp != cgrp) {  in perf_cgroup_connect()
1027 				      struct perf_event *group_leader)  in perf_cgroup_connect()  argument
1508 	if (event->group_leader != event)  in get_event_type()
1509 		event = event->group_leader;  in get_event_type()
1778 	if (event->group_leader == event) {  in list_add_event()
1881 			       event->group_leader->nr_siblings);  in perf_event__header_size()
1918 	__perf_event_read_size(event, event->group_leader->nr_siblings + 1);  in perf_event_validate_size()
1935 	struct perf_event *group_leader = event->group_leader, *pos;  in perf_group_attach()  local
1948 	if (group_leader == event)  in perf_group_attach()
1951 	WARN_ON_ONCE(group_leader->ctx != event->ctx);  in perf_group_attach()
1953 	group_leader->group_caps &= event->event_caps;  in perf_group_attach()
1955 	list_add_tail(&event->sibling_list, &group_leader->sibling_list);  in perf_group_attach()
1956 	group_leader->nr_siblings++;  in perf_group_attach()
1957 	group_leader->group_generation++;  in perf_group_attach()
1959 	perf_event__header_size(group_leader);  in perf_group_attach()
1961 	for_each_sibling_event(pos, group_leader)  in perf_group_attach()
1991 	if (event->group_leader == event)  in list_del_event()
2045 	for_each_sibling_event(iter, event->group_leader) {  in perf_put_aux_event()
2068 			      struct perf_event *group_leader)  in perf_get_aux_event()  argument
2076 	if (!group_leader)  in perf_get_aux_event()
2086 	    !perf_aux_output_match(event, group_leader))  in perf_get_aux_event()
2089 	if (event->attr.aux_sample_size && !group_leader->pmu->snapshot_aux)  in perf_get_aux_event()
2092 	if (!atomic_long_inc_not_zero(&group_leader->refcount))  in perf_get_aux_event()
2101 	event->aux_event = group_leader;  in perf_get_aux_event()
2126 	struct perf_event *leader = event->group_leader;  in perf_group_detach()
2147 		event->group_leader->nr_siblings--;  in perf_group_detach()
2148 		event->group_leader->group_generation++;  in perf_group_detach()
2162 		sibling->group_leader = sibling;  in perf_group_detach()
2410 	if (event == event->group_leader)  in __perf_event_disable()
2907 	struct perf_event *leader = event->group_leader;  in __perf_event_enable()
2977 		    event->group_leader == event)  in _perf_event_enable()
5523 	struct perf_event *leader = event->group_leader, *child;  in perf_read_group()
5721 	event = event->group_leader;  in perf_event_for_each()
7177 	struct perf_event *leader = event->group_leader, *sub;  in perf_output_read_group()
11592 	if (event->group_leader != event && pmu->task_ctx_nr != perf_sw_context) {  in perf_try_init_event()
11597 		ctx = perf_event_ctx_lock_nested(event->group_leader,  in perf_try_init_event()
11606 		perf_event_ctx_unlock(event->group_leader, ctx);  in perf_try_init_event()
11821 		 struct perf_event *group_leader,  in perf_event_alloc()  argument
11851 	if (!group_leader)  in perf_event_alloc()
11852 		group_leader = event;  in perf_event_alloc()
11877 	event->group_leader	= group_leader;  in perf_event_alloc()
11976 		err = perf_cgroup_connect(cgroup_fd, event, attr, group_leader);  in perf_event_alloc()
12355 	struct perf_event *group_leader = NULL, *output_event = NULL;  in SYSCALL_DEFINE5()  local
12436 		group_leader = group.file->private_data;  in SYSCALL_DEFINE5()
12438 			output_event = group_leader;  in SYSCALL_DEFINE5()
12440 			group_leader = NULL;  in SYSCALL_DEFINE5()
12451 	if (task && group_leader &&  in SYSCALL_DEFINE5()
12452 	    group_leader->attr.inherit != attr.inherit) {  in SYSCALL_DEFINE5()
12460 	event = perf_event_alloc(&attr, cpu, task, group_leader, NULL,  in SYSCALL_DEFINE5()
12536 	if (group_leader) {  in SYSCALL_DEFINE5()
12543 		if (group_leader->group_leader != group_leader)  in SYSCALL_DEFINE5()
12547 		if (group_leader->clock != event->clock)  in SYSCALL_DEFINE5()
12555 		if (group_leader->cpu != event->cpu)  in SYSCALL_DEFINE5()
12561 		if (group_leader->ctx != ctx)  in SYSCALL_DEFINE5()
12571 		    !in_software_context(group_leader)) {  in SYSCALL_DEFINE5()
12583 			pmu = group_leader->pmu_ctx->pmu;  in SYSCALL_DEFINE5()
12585 			if (is_software_event(group_leader) &&  in SYSCALL_DEFINE5()
12586 			    (group_leader->group_caps & PERF_EV_CAP_SOFTWARE)) {  in SYSCALL_DEFINE5()
12596 			if (!in_software_context(group_leader) &&  in SYSCALL_DEFINE5()
12597 			    group_leader->pmu_ctx->pmu != pmu)  in SYSCALL_DEFINE5()
12623 	if (perf_need_aux_event(event) && !perf_get_aux_event(event, group_leader)) {  in SYSCALL_DEFINE5()
12652 		perf_remove_from_context(group_leader, 0);  in SYSCALL_DEFINE5()
12653 		put_pmu_ctx(group_leader->pmu_ctx);  in SYSCALL_DEFINE5()
12655 		for_each_sibling_event(sibling, group_leader) {  in SYSCALL_DEFINE5()
12670 		for_each_sibling_event(sibling, group_leader) {  in SYSCALL_DEFINE5()
12682 		group_leader->pmu_ctx = pmu_ctx;  in SYSCALL_DEFINE5()
12684 		perf_event__state_init(group_leader);  in SYSCALL_DEFINE5()
12685 		perf_install_in_context(ctx, group_leader, group_leader->cpu);  in SYSCALL_DEFINE5()
12899 		if (event->group_leader == event)  in __perf_pmu_install()
13239 	      struct perf_event *group_leader,  in inherit_event()  argument
13259 					   group_leader, parent_event,  in inherit_event()