694 	struct perf_event *leader = event->group_leader;  in __perf_effective_state()
1011 				      struct perf_event *group_leader)  in perf_cgroup_connect()  argument
1038 	if (group_leader && group_leader->cgrp != cgrp) {  in perf_cgroup_connect()
1116 				      struct perf_event *group_leader)  in perf_cgroup_connect()  argument
1596 	if (event->group_leader != event)  in get_event_type()
1597 		event = event->group_leader;  in get_event_type()
1874 	if (event->group_leader == event) {  in list_add_event()
1983 				       event->group_leader->nr_siblings);  in perf_event__header_size()
2027 	struct perf_event *sibling, *group_leader = event->group_leader;  in perf_event_validate_size()  local
2030 				   group_leader->nr_siblings + 1) > 16*1024)  in perf_event_validate_size()
2033 	if (__perf_event_read_size(group_leader->attr.read_format,  in perf_event_validate_size()
2034 				   group_leader->nr_siblings + 1) > 16*1024)  in perf_event_validate_size()
2044 	if (event == group_leader)  in perf_event_validate_size()
2047 	for_each_sibling_event(sibling, group_leader) {  in perf_event_validate_size()
2049 					   group_leader->nr_siblings + 1) > 16*1024)  in perf_event_validate_size()
2058 	struct perf_event *group_leader = event->group_leader, *pos;  in perf_group_attach()  local
2071 	if (group_leader == event)  in perf_group_attach()
2074 	WARN_ON_ONCE(group_leader->ctx != event->ctx);  in perf_group_attach()
2076 	group_leader->group_caps &= event->event_caps;  in perf_group_attach()
2078 	list_add_tail(&event->sibling_list, &group_leader->sibling_list);  in perf_group_attach()
2079 	group_leader->nr_siblings++;  in perf_group_attach()
2080 	group_leader->group_generation++;  in perf_group_attach()
2082 	perf_event__header_size(group_leader);  in perf_group_attach()
2084 	for_each_sibling_event(pos, group_leader)  in perf_group_attach()
2116 	if (event->group_leader == event)  in list_del_event()
2170 	for_each_sibling_event(iter, event->group_leader) {  in perf_put_aux_event()
2193 			      struct perf_event *group_leader)  in perf_get_aux_event()  argument
2201 	if (!group_leader)  in perf_get_aux_event()
2211 	    !perf_aux_output_match(event, group_leader))  in perf_get_aux_event()
2215 	    !(group_leader->pmu->capabilities & PERF_PMU_CAP_AUX_PAUSE))  in perf_get_aux_event()
2218 	if (event->attr.aux_sample_size && !group_leader->pmu->snapshot_aux)  in perf_get_aux_event()
2221 	if (!atomic_long_inc_not_zero(&group_leader->refcount))  in perf_get_aux_event()
2230 	event->aux_event = group_leader;  in perf_get_aux_event()
2255 	struct perf_event *leader = event->group_leader;  in perf_group_detach()
2276 		event->group_leader->nr_siblings--;  in perf_group_detach()
2277 		event->group_leader->group_generation++;  in perf_group_detach()
2291 		sibling->group_leader = sibling;  in perf_group_detach()
2562 	if (event == event->group_leader)  in __perf_event_disable()
3067 	struct perf_event *leader = event->group_leader;  in __perf_event_enable()
3132 		    event->group_leader == event)  in _perf_event_enable()
5943 	struct perf_event *leader = event->group_leader, *child;  in perf_read_group()
6145 	event = event->group_leader;  in perf_event_for_each()
7654 	struct perf_event *leader = event->group_leader, *sub;  in perf_output_read_group()
12289 	if (event->group_leader != event && pmu->task_ctx_nr != perf_sw_context) {  in perf_try_init_event()
12294 		ctx = perf_event_ctx_lock_nested(event->group_leader,  in perf_try_init_event()
12303 		perf_event_ctx_unlock(event->group_leader, ctx);  in perf_try_init_event()
12540 		 struct perf_event *group_leader,  in perf_event_alloc()  argument
12569 	if (!group_leader)  in perf_event_alloc()
12570 		group_leader = event;  in perf_event_alloc()
12596 	event->group_leader	= group_leader;  in perf_event_alloc()
12711 		err = perf_cgroup_connect(cgroup_fd, event, attr, group_leader);  in perf_event_alloc()
13065 	struct perf_event *group_leader = NULL, *output_event = NULL;  in SYSCALL_DEFINE5()  local
13147 		group_leader = fd_file(group)->private_data;  in SYSCALL_DEFINE5()
13149 			output_event = group_leader;  in SYSCALL_DEFINE5()
13151 			group_leader = NULL;  in SYSCALL_DEFINE5()
13162 	if (task && group_leader &&  in SYSCALL_DEFINE5()
13163 	    group_leader->attr.inherit != attr.inherit) {  in SYSCALL_DEFINE5()
13171 	event = perf_event_alloc(&attr, cpu, task, group_leader, NULL,  in SYSCALL_DEFINE5()
13247 	if (group_leader) {  in SYSCALL_DEFINE5()
13254 		if (group_leader->group_leader != group_leader)  in SYSCALL_DEFINE5()
13258 		if (group_leader->clock != event->clock)  in SYSCALL_DEFINE5()
13266 		if (group_leader->cpu != event->cpu)  in SYSCALL_DEFINE5()
13272 		if (group_leader->ctx != ctx)  in SYSCALL_DEFINE5()
13282 		    !in_software_context(group_leader)) {  in SYSCALL_DEFINE5()
13294 			pmu = group_leader->pmu_ctx->pmu;  in SYSCALL_DEFINE5()
13296 			if (is_software_event(group_leader) &&  in SYSCALL_DEFINE5()
13297 			    (group_leader->group_caps & PERF_EV_CAP_SOFTWARE)) {  in SYSCALL_DEFINE5()
13307 			if (!in_software_context(group_leader) &&  in SYSCALL_DEFINE5()
13308 			    group_leader->pmu_ctx->pmu != pmu)  in SYSCALL_DEFINE5()
13334 	if (perf_need_aux_event(event) && !perf_get_aux_event(event, group_leader)) {  in SYSCALL_DEFINE5()
13363 		perf_remove_from_context(group_leader, 0);  in SYSCALL_DEFINE5()
13364 		put_pmu_ctx(group_leader->pmu_ctx);  in SYSCALL_DEFINE5()
13366 		for_each_sibling_event(sibling, group_leader) {  in SYSCALL_DEFINE5()
13381 		for_each_sibling_event(sibling, group_leader) {  in SYSCALL_DEFINE5()
13393 		group_leader->pmu_ctx = pmu_ctx;  in SYSCALL_DEFINE5()
13395 		perf_event__state_init(group_leader);  in SYSCALL_DEFINE5()
13396 		perf_install_in_context(ctx, group_leader, group_leader->cpu);  in SYSCALL_DEFINE5()
13615 		if (event->group_leader == event)  in __perf_pmu_install()
13966 	      struct perf_event *group_leader,  in inherit_event()  argument
13986 					   group_leader, parent_event,  in inherit_event()