334 static struct cpuset top_cpuset = {  variable
744 	if (cur == &top_cpuset)  in validate_change()
905 	bool root_load_balance = is_sched_load_balance(&top_cpuset);  in generate_sched_domains()
912 	if (root_load_balance && !top_cpuset.nr_subparts_cpus) {  in generate_sched_domains()
921 			update_domain_attr_tree(dattr, &top_cpuset);  in generate_sched_domains()
923 		cpumask_and(doms[0], top_cpuset.effective_cpus,  in generate_sched_domains()
936 		csa[csn++] = &top_cpuset;  in generate_sched_domains()
937 	cpuset_for_each_descendant_pre(cp, pos_css, &top_cpuset) {  in generate_sched_domains()
938 		if (cp == &top_cpuset)  in generate_sched_domains()
958 		    cpumask_subset(cp->cpus_allowed, top_cpuset.effective_cpus))  in generate_sched_domains()
1103 	cpuset_for_each_descendant_pre(cs, pos_css, &top_cpuset) {  in dl_rebuild_rd_accounting()
1163 	if (!top_cpuset.nr_subparts_cpus &&  in rebuild_sched_domains_locked()
1164 	    !cpumask_equal(top_cpuset.effective_cpus, cpu_active_mask))  in rebuild_sched_domains_locked()
1172 	if (top_cpuset.nr_subparts_cpus) {  in rebuild_sched_domains_locked()
1174 		cpuset_for_each_descendant_pre(cs, pos_css, &top_cpuset) {  in rebuild_sched_domains_locked()
1224 	bool top_cs = cs == &top_cpuset;  in update_tasks_cpumask()
1844 	if (cs == &top_cpuset)  in update_cpumask()
1861 				    top_cpuset.cpus_allowed))  in update_cpumask()
2174 	if (cs == &top_cpuset) {  in update_nodemask()
2193 				  top_cpuset.mems_allowed)) {  in update_nodemask()
2649 	if (cs != &top_cpuset)  in cpuset_attach_task()
3239 		return &top_cpuset.css;  in cpuset_css_alloc()
3390 		cpumask_copy(top_cpuset.cpus_allowed, cpu_possible_mask);  in cpuset_bind()
3391 		top_cpuset.mems_allowed = node_possible_map;  in cpuset_bind()
3393 		cpumask_copy(top_cpuset.cpus_allowed,  in cpuset_bind()
3394 			     top_cpuset.effective_cpus);  in cpuset_bind()
3395 		top_cpuset.mems_allowed = top_cpuset.effective_mems;  in cpuset_bind()
3480 		if (cs == &top_cpuset)  in cpuset_fork()
3527 	BUG_ON(!alloc_cpumask_var(&top_cpuset.cpus_allowed, GFP_KERNEL));  in cpuset_init()
3528 	BUG_ON(!alloc_cpumask_var(&top_cpuset.effective_cpus, GFP_KERNEL));  in cpuset_init()
3529 	BUG_ON(!zalloc_cpumask_var(&top_cpuset.subparts_cpus, GFP_KERNEL));  in cpuset_init()
3531 	cpumask_setall(top_cpuset.cpus_allowed);  in cpuset_init()
3532 	nodes_setall(top_cpuset.mems_allowed);  in cpuset_init()
3533 	cpumask_setall(top_cpuset.effective_cpus);  in cpuset_init()
3534 	nodes_setall(top_cpuset.effective_mems);  in cpuset_init()
3536 	fmeter_init(&top_cpuset.fmeter);  in cpuset_init()
3537 	set_bit(CS_SCHED_LOAD_BALANCE, &top_cpuset.flags);  in cpuset_init()
3538 	top_cpuset.relax_domain_level = -1;  in cpuset_init()
3804 	cpus_updated = !cpumask_equal(top_cpuset.effective_cpus, &new_cpus);  in cpuset_hotplug_workfn()
3805 	mems_updated = !nodes_equal(top_cpuset.effective_mems, new_mems);  in cpuset_hotplug_workfn()
3811 	if (!cpus_updated && top_cpuset.nr_subparts_cpus)  in cpuset_hotplug_workfn()
3818 			cpumask_copy(top_cpuset.cpus_allowed, &new_cpus);  in cpuset_hotplug_workfn()
3825 		if (top_cpuset.nr_subparts_cpus) {  in cpuset_hotplug_workfn()
3827 					   top_cpuset.subparts_cpus)) {  in cpuset_hotplug_workfn()
3828 				top_cpuset.nr_subparts_cpus = 0;  in cpuset_hotplug_workfn()
3829 				cpumask_clear(top_cpuset.subparts_cpus);  in cpuset_hotplug_workfn()
3832 					       top_cpuset.subparts_cpus);  in cpuset_hotplug_workfn()
3835 		cpumask_copy(top_cpuset.effective_cpus, &new_cpus);  in cpuset_hotplug_workfn()
3844 			top_cpuset.mems_allowed = new_mems;  in cpuset_hotplug_workfn()
3845 		top_cpuset.effective_mems = new_mems;  in cpuset_hotplug_workfn()
3847 		update_tasks_nodemask(&top_cpuset);  in cpuset_hotplug_workfn()
3858 		cpuset_for_each_descendant_pre(cs, pos_css, &top_cpuset) {  in cpuset_hotplug_workfn()
3859 			if (cs == &top_cpuset || !css_tryget_online(&cs->css))  in cpuset_hotplug_workfn()
3919 	top_cpuset.old_mems_allowed = top_cpuset.mems_allowed;  in cpuset_init_smp()
3921 	cpumask_copy(top_cpuset.effective_cpus, cpu_active_mask);  in cpuset_init_smp()
3922 	top_cpuset.effective_mems = node_states[N_MEMORY];  in cpuset_init_smp()
3950 	if (cs != &top_cpuset)  in cpuset_cpus_allowed()
3957 	if ((cs == &top_cpuset) || cpumask_empty(pmask)) {  in cpuset_cpus_allowed()
3964 		cpumask_andnot(pmask, possible_mask, top_cpuset.subparts_cpus);  in cpuset_cpus_allowed()