618 	struct perf_event *leader = event->group_leader;  in __perf_effective_state()
944 				      struct perf_event *group_leader)  in perf_cgroup_connect()  argument
973 	if (group_leader && group_leader->cgrp != cgrp) {  in perf_cgroup_connect()
1083 				      struct perf_event *group_leader)  in perf_cgroup_connect()  argument
1555 	if (event->group_leader != event)  in get_event_type()
1556 		event = event->group_leader;  in get_event_type()
1817 	if (event->group_leader == event) {  in list_add_event()
1908 			       event->group_leader->nr_siblings);  in perf_event__header_size()
1945 	__perf_event_read_size(event, event->group_leader->nr_siblings + 1);  in perf_event_validate_size()
1962 	struct perf_event *group_leader = event->group_leader, *pos;  in perf_group_attach()  local
1974 	if (group_leader == event)  in perf_group_attach()
1977 	WARN_ON_ONCE(group_leader->ctx != event->ctx);  in perf_group_attach()
1979 	group_leader->group_caps &= event->event_caps;  in perf_group_attach()
1981 	list_add_tail(&event->sibling_list, &group_leader->sibling_list);  in perf_group_attach()
1982 	group_leader->nr_siblings++;  in perf_group_attach()
1984 	perf_event__header_size(group_leader);  in perf_group_attach()
1986 	for_each_sibling_event(pos, group_leader)  in perf_group_attach()
2014 	if (event->group_leader == event)  in list_del_event()
2069 	for_each_sibling_event(iter, event->group_leader) {  in perf_put_aux_event()
2092 			      struct perf_event *group_leader)  in perf_get_aux_event()  argument
2100 	if (!group_leader)  in perf_get_aux_event()
2110 	    !perf_aux_output_match(event, group_leader))  in perf_get_aux_event()
2113 	if (event->attr.aux_sample_size && !group_leader->pmu->snapshot_aux)  in perf_get_aux_event()
2116 	if (!atomic_long_inc_not_zero(&group_leader->refcount))  in perf_get_aux_event()
2125 	event->aux_event = group_leader;  in perf_get_aux_event()
2153 	struct perf_event *leader = event->group_leader;  in perf_group_detach()
2174 		event->group_leader->nr_siblings--;  in perf_group_detach()
2188 		sibling->group_leader = sibling;  in perf_group_detach()
2406 	if (event == event->group_leader)  in __perf_event_disable()
2940 	struct perf_event *leader = event->group_leader;  in __perf_event_enable()
3010 		    event->group_leader == event)  in _perf_event_enable()
5148 	struct perf_event *leader = event->group_leader, *child;  in perf_read_group()
5348 	event = event->group_leader;  in perf_event_for_each()
6702 	struct perf_event *leader = event->group_leader, *sub;  in perf_output_read_group()
10908 	if (event->group_leader != event && pmu->task_ctx_nr != perf_sw_context) {  in perf_try_init_event()
10913 		ctx = perf_event_ctx_lock_nested(event->group_leader,  in perf_try_init_event()
10922 		perf_event_ctx_unlock(event->group_leader, ctx);  in perf_try_init_event()
11127 		 struct perf_event *group_leader,  in perf_event_alloc()  argument
11150 	if (!group_leader)  in perf_event_alloc()
11151 		group_leader = event;  in perf_event_alloc()
11176 	event->group_leader	= group_leader;  in perf_event_alloc()
11271 		err = perf_cgroup_connect(cgroup_fd, event, attr, group_leader);  in perf_event_alloc()
11584 __perf_event_ctx_lock_double(struct perf_event *group_leader,  in __perf_event_ctx_lock_double()  argument
11591 	gctx = READ_ONCE(group_leader->ctx);  in __perf_event_ctx_lock_double()
11600 	if (group_leader->ctx != gctx) {  in __perf_event_ctx_lock_double()
11622 	struct perf_event *group_leader = NULL, *output_event = NULL;  in SYSCALL_DEFINE5()  local
11702 		group_leader = group.file->private_data;  in SYSCALL_DEFINE5()
11704 			output_event = group_leader;  in SYSCALL_DEFINE5()
11706 			group_leader = NULL;  in SYSCALL_DEFINE5()
11717 	if (task && group_leader &&  in SYSCALL_DEFINE5()
11718 	    group_leader->attr.inherit != attr.inherit) {  in SYSCALL_DEFINE5()
11744 	event = perf_event_alloc(&attr, cpu, task, group_leader, NULL,  in SYSCALL_DEFINE5()
11773 	if (group_leader) {  in SYSCALL_DEFINE5()
11775 		    !in_software_context(group_leader)) {  in SYSCALL_DEFINE5()
11784 			pmu = group_leader->ctx->pmu;  in SYSCALL_DEFINE5()
11786 			   is_software_event(group_leader) &&  in SYSCALL_DEFINE5()
11787 			   (group_leader->group_caps & PERF_EV_CAP_SOFTWARE)) {  in SYSCALL_DEFINE5()
11809 	if (group_leader) {  in SYSCALL_DEFINE5()
11816 		if (group_leader->group_leader != group_leader)  in SYSCALL_DEFINE5()
11820 		if (group_leader->clock != event->clock)  in SYSCALL_DEFINE5()
11828 		if (group_leader->cpu != event->cpu)  in SYSCALL_DEFINE5()
11835 		if (group_leader->ctx->task != ctx->task)  in SYSCALL_DEFINE5()
11843 		if (!move_group && group_leader->ctx != ctx)  in SYSCALL_DEFINE5()
11868 		gctx = __perf_event_ctx_lock_double(group_leader, ctx);  in SYSCALL_DEFINE5()
11879 		if (!(group_leader->group_caps & PERF_EV_CAP_SOFTWARE)) {  in SYSCALL_DEFINE5()
11889 				perf_event_ctx_unlock(group_leader, gctx);  in SYSCALL_DEFINE5()
11898 		if (!exclusive_event_installable(group_leader, ctx))  in SYSCALL_DEFINE5()
11901 		for_each_sibling_event(sibling, group_leader) {  in SYSCALL_DEFINE5()
11935 	if (perf_need_aux_event(event) && !perf_get_aux_event(event, group_leader)) {  in SYSCALL_DEFINE5()
11961 		perf_remove_from_context(group_leader, 0);  in SYSCALL_DEFINE5()
11964 		for_each_sibling_event(sibling, group_leader) {  in SYSCALL_DEFINE5()
11985 		for_each_sibling_event(sibling, group_leader) {  in SYSCALL_DEFINE5()
11996 		perf_event__state_init(group_leader);  in SYSCALL_DEFINE5()
11997 		perf_install_in_context(ctx, group_leader, group_leader->cpu);  in SYSCALL_DEFINE5()
12016 		perf_event_ctx_unlock(group_leader, gctx);  in SYSCALL_DEFINE5()
12040 		perf_event_ctx_unlock(group_leader, gctx);  in SYSCALL_DEFINE5()
12191 		if (event->group_leader == event)  in perf_pmu_migrate_context()
12522 	      struct perf_event *group_leader,  in inherit_event()  argument
12541 					   group_leader, parent_event,  in inherit_event()