611 	struct perf_event *leader = event->group_leader;  in __perf_effective_state()
896 				      struct perf_event *group_leader)  in perf_cgroup_connect()  argument
921 	if (group_leader && group_leader->cgrp != cgrp) {  in perf_cgroup_connect()
1023 				      struct perf_event *group_leader)  in perf_cgroup_connect()  argument
1478 	if (event->group_leader != event)  in get_event_type()
1479 		event = event->group_leader;  in get_event_type()
1679 	if (event->group_leader == event) {  in list_add_event()
1766 			       event->group_leader->nr_siblings);  in perf_event__header_size()
1803 	__perf_event_read_size(event, event->group_leader->nr_siblings + 1);  in perf_event_validate_size()
1820 	struct perf_event *group_leader = event->group_leader, *pos;  in perf_group_attach()  local
1832 	if (group_leader == event)  in perf_group_attach()
1835 	WARN_ON_ONCE(group_leader->ctx != event->ctx);  in perf_group_attach()
1837 	group_leader->group_caps &= event->event_caps;  in perf_group_attach()
1839 	list_add_tail(&event->sibling_list, &group_leader->sibling_list);  in perf_group_attach()
1840 	group_leader->nr_siblings++;  in perf_group_attach()
1842 	perf_event__header_size(group_leader);  in perf_group_attach()
1844 	for_each_sibling_event(pos, group_leader)  in perf_group_attach()
1874 	if (event->group_leader == event)  in list_del_event()
1927 	for_each_sibling_event(iter, event->group_leader) {  in perf_put_aux_event()
1945 			      struct perf_event *group_leader)  in perf_get_aux_event()  argument
1953 	if (!group_leader)  in perf_get_aux_event()
1956 	if (!perf_aux_output_match(event, group_leader))  in perf_get_aux_event()
1959 	if (!atomic_long_inc_not_zero(&group_leader->refcount))  in perf_get_aux_event()
1968 	event->aux_event = group_leader;  in perf_get_aux_event()
1993 	if (event->group_leader != event) {  in perf_group_detach()
1995 		event->group_leader->nr_siblings--;  in perf_group_detach()
2006 		sibling->group_leader = sibling;  in perf_group_detach()
2027 	perf_event__header_size(event->group_leader);  in perf_group_detach()
2029 	for_each_sibling_event(tmp, event->group_leader)  in perf_group_detach()
2229 	if (event == event->group_leader)  in __perf_event_disable()
2746 	struct perf_event *leader = event->group_leader;  in __perf_event_enable()
4882 	struct perf_event *leader = event->group_leader, *child;  in perf_read_group()
5060 	event = event->group_leader;  in perf_event_for_each()
6276 	struct perf_event *leader = event->group_leader, *sub;  in perf_output_read_group()
10200 	if (event->group_leader != event && pmu->task_ctx_nr != perf_sw_context) {  in perf_try_init_event()
10205 		ctx = perf_event_ctx_lock_nested(event->group_leader,  in perf_try_init_event()
10214 		perf_event_ctx_unlock(event->group_leader, ctx);  in perf_try_init_event()
10401 		 struct perf_event *group_leader,  in perf_event_alloc()  argument
10424 	if (!group_leader)  in perf_event_alloc()
10425 		group_leader = event;  in perf_event_alloc()
10450 	event->group_leader	= group_leader;  in perf_event_alloc()
10527 		err = perf_cgroup_connect(cgroup_fd, event, attr, group_leader);  in perf_event_alloc()
10844 __perf_event_ctx_lock_double(struct perf_event *group_leader,  in __perf_event_ctx_lock_double()  argument
10851 	gctx = READ_ONCE(group_leader->ctx);  in __perf_event_ctx_lock_double()
10860 	if (group_leader->ctx != gctx) {  in __perf_event_ctx_lock_double()
10882 	struct perf_event *group_leader = NULL, *output_event = NULL;  in SYSCALL_DEFINE5()  local
10954 		group_leader = group.file->private_data;  in SYSCALL_DEFINE5()
10956 			output_event = group_leader;  in SYSCALL_DEFINE5()
10958 			group_leader = NULL;  in SYSCALL_DEFINE5()
10969 	if (task && group_leader &&  in SYSCALL_DEFINE5()
10970 	    group_leader->attr.inherit != attr.inherit) {  in SYSCALL_DEFINE5()
10996 	event = perf_event_alloc(&attr, cpu, task, group_leader, NULL,  in SYSCALL_DEFINE5()
11025 	if (group_leader) {  in SYSCALL_DEFINE5()
11027 		    !in_software_context(group_leader)) {  in SYSCALL_DEFINE5()
11036 			pmu = group_leader->ctx->pmu;  in SYSCALL_DEFINE5()
11038 			   is_software_event(group_leader) &&  in SYSCALL_DEFINE5()
11039 			   (group_leader->group_caps & PERF_EV_CAP_SOFTWARE)) {  in SYSCALL_DEFINE5()
11061 	if (group_leader) {  in SYSCALL_DEFINE5()
11068 		if (group_leader->group_leader != group_leader)  in SYSCALL_DEFINE5()
11072 		if (group_leader->clock != event->clock)  in SYSCALL_DEFINE5()
11080 		if (group_leader->cpu != event->cpu)  in SYSCALL_DEFINE5()
11087 		if (group_leader->ctx->task != ctx->task)  in SYSCALL_DEFINE5()
11095 		if (!move_group && group_leader->ctx != ctx)  in SYSCALL_DEFINE5()
11120 		gctx = __perf_event_ctx_lock_double(group_leader, ctx);  in SYSCALL_DEFINE5()
11131 		if (!(group_leader->group_caps & PERF_EV_CAP_SOFTWARE)) {  in SYSCALL_DEFINE5()
11141 				perf_event_ctx_unlock(group_leader, gctx);  in SYSCALL_DEFINE5()
11150 		if (!exclusive_event_installable(group_leader, ctx))  in SYSCALL_DEFINE5()
11153 		for_each_sibling_event(sibling, group_leader) {  in SYSCALL_DEFINE5()
11187 	if (event->attr.aux_output && !perf_get_aux_event(event, group_leader))  in SYSCALL_DEFINE5()
11211 		perf_remove_from_context(group_leader, 0);  in SYSCALL_DEFINE5()
11214 		for_each_sibling_event(sibling, group_leader) {  in SYSCALL_DEFINE5()
11235 		for_each_sibling_event(sibling, group_leader) {  in SYSCALL_DEFINE5()
11246 		perf_event__state_init(group_leader);  in SYSCALL_DEFINE5()
11247 		perf_install_in_context(ctx, group_leader, group_leader->cpu);  in SYSCALL_DEFINE5()
11266 		perf_event_ctx_unlock(group_leader, gctx);  in SYSCALL_DEFINE5()
11290 		perf_event_ctx_unlock(group_leader, gctx);  in SYSCALL_DEFINE5()
11441 		if (event->group_leader == event)  in perf_pmu_migrate_context()
11772 	      struct perf_event *group_leader,  in inherit_event()  argument
11791 					   group_leader, parent_event,  in inherit_event()