610 	struct perf_event *leader = event->group_leader;  in __perf_effective_state()
895 				      struct perf_event *group_leader)  in perf_cgroup_connect()  argument
920 	if (group_leader && group_leader->cgrp != cgrp) {  in perf_cgroup_connect()
1022 				      struct perf_event *group_leader)  in perf_cgroup_connect()  argument
1476 	if (event->group_leader != event)  in get_event_type()
1477 		event = event->group_leader;  in get_event_type()
1677 	if (event->group_leader == event) {  in list_add_event()
1764 			       event->group_leader->nr_siblings);  in perf_event__header_size()
1801 	__perf_event_read_size(event, event->group_leader->nr_siblings + 1);  in perf_event_validate_size()
1818 	struct perf_event *group_leader = event->group_leader, *pos;  in perf_group_attach()  local
1830 	if (group_leader == event)  in perf_group_attach()
1833 	WARN_ON_ONCE(group_leader->ctx != event->ctx);  in perf_group_attach()
1835 	group_leader->group_caps &= event->event_caps;  in perf_group_attach()
1837 	list_add_tail(&event->sibling_list, &group_leader->sibling_list);  in perf_group_attach()
1838 	group_leader->nr_siblings++;  in perf_group_attach()
1840 	perf_event__header_size(group_leader);  in perf_group_attach()
1842 	for_each_sibling_event(pos, group_leader)  in perf_group_attach()
1872 	if (event->group_leader == event)  in list_del_event()
1906 	if (event->group_leader != event) {  in perf_group_detach()
1908 		event->group_leader->nr_siblings--;  in perf_group_detach()
1919 		sibling->group_leader = sibling;  in perf_group_detach()
1940 	perf_event__header_size(event->group_leader);  in perf_group_detach()
1942 	for_each_sibling_event(tmp, event->group_leader)  in perf_group_detach()
2142 	if (event == event->group_leader)  in __perf_event_disable()
2643 	struct perf_event *leader = event->group_leader;  in __perf_event_enable()
4744 	struct perf_event *leader = event->group_leader, *child;  in perf_read_group()
4922 	event = event->group_leader;  in perf_event_for_each()
6080 	struct perf_event *leader = event->group_leader, *sub;  in perf_output_read_group()
9730 	if (event->group_leader != event && pmu->task_ctx_nr != perf_sw_context) {  in perf_try_init_event()
9735 		ctx = perf_event_ctx_lock_nested(event->group_leader,  in perf_try_init_event()
9744 		perf_event_ctx_unlock(event->group_leader, ctx);  in perf_try_init_event()
9914 		 struct perf_event *group_leader,  in perf_event_alloc()  argument
9937 	if (!group_leader)  in perf_event_alloc()
9938 		group_leader = event;  in perf_event_alloc()
9962 	event->group_leader	= group_leader;  in perf_event_alloc()
10040 		err = perf_cgroup_connect(cgroup_fd, event, attr, group_leader);  in perf_event_alloc()
10357 __perf_event_ctx_lock_double(struct perf_event *group_leader,  in __perf_event_ctx_lock_double()  argument
10364 	gctx = READ_ONCE(group_leader->ctx);  in __perf_event_ctx_lock_double()
10373 	if (group_leader->ctx != gctx) {  in __perf_event_ctx_lock_double()
10395 	struct perf_event *group_leader = NULL, *output_event = NULL;  in SYSCALL_DEFINE5()  local
10460 		group_leader = group.file->private_data;  in SYSCALL_DEFINE5()
10462 			output_event = group_leader;  in SYSCALL_DEFINE5()
10464 			group_leader = NULL;  in SYSCALL_DEFINE5()
10475 	if (task && group_leader &&  in SYSCALL_DEFINE5()
10476 	    group_leader->attr.inherit != attr.inherit) {  in SYSCALL_DEFINE5()
10502 	event = perf_event_alloc(&attr, cpu, task, group_leader, NULL,  in SYSCALL_DEFINE5()
10531 	if (group_leader) {  in SYSCALL_DEFINE5()
10533 		    !in_software_context(group_leader)) {  in SYSCALL_DEFINE5()
10542 			pmu = group_leader->ctx->pmu;  in SYSCALL_DEFINE5()
10544 			   is_software_event(group_leader) &&  in SYSCALL_DEFINE5()
10545 			   (group_leader->group_caps & PERF_EV_CAP_SOFTWARE)) {  in SYSCALL_DEFINE5()
10564 	if ((pmu->capabilities & PERF_PMU_CAP_EXCLUSIVE) && group_leader) {  in SYSCALL_DEFINE5()
10572 	if (group_leader) {  in SYSCALL_DEFINE5()
10579 		if (group_leader->group_leader != group_leader)  in SYSCALL_DEFINE5()
10583 		if (group_leader->clock != event->clock)  in SYSCALL_DEFINE5()
10591 		if (group_leader->cpu != event->cpu)  in SYSCALL_DEFINE5()
10598 		if (group_leader->ctx->task != ctx->task)  in SYSCALL_DEFINE5()
10606 		if (!move_group && group_leader->ctx != ctx)  in SYSCALL_DEFINE5()
10631 		gctx = __perf_event_ctx_lock_double(group_leader, ctx);  in SYSCALL_DEFINE5()
10642 		if (!(group_leader->group_caps & PERF_EV_CAP_SOFTWARE)) {  in SYSCALL_DEFINE5()
10652 				perf_event_ctx_unlock(group_leader, gctx);  in SYSCALL_DEFINE5()
10711 		perf_remove_from_context(group_leader, 0);  in SYSCALL_DEFINE5()
10714 		for_each_sibling_event(sibling, group_leader) {  in SYSCALL_DEFINE5()
10735 		for_each_sibling_event(sibling, group_leader) {  in SYSCALL_DEFINE5()
10746 		perf_event__state_init(group_leader);  in SYSCALL_DEFINE5()
10747 		perf_install_in_context(ctx, group_leader, group_leader->cpu);  in SYSCALL_DEFINE5()
10766 		perf_event_ctx_unlock(group_leader, gctx);  in SYSCALL_DEFINE5()
10790 		perf_event_ctx_unlock(group_leader, gctx);  in SYSCALL_DEFINE5()
10935 		if (event->group_leader == event)  in perf_pmu_migrate_context()
11252 	      struct perf_event *group_leader,  in inherit_event()  argument
11271 					   group_leader, parent_event,  in inherit_event()