333 static struct cpuset top_cpuset = {  variable
743 	if (cur == &top_cpuset)  in validate_change()
904 	bool root_load_balance = is_sched_load_balance(&top_cpuset);  in generate_sched_domains()
911 	if (root_load_balance && !top_cpuset.nr_subparts_cpus) {  in generate_sched_domains()
920 			update_domain_attr_tree(dattr, &top_cpuset);  in generate_sched_domains()
922 		cpumask_and(doms[0], top_cpuset.effective_cpus,  in generate_sched_domains()
935 		csa[csn++] = &top_cpuset;  in generate_sched_domains()
936 	cpuset_for_each_descendant_pre(cp, pos_css, &top_cpuset) {  in generate_sched_domains()
937 		if (cp == &top_cpuset)  in generate_sched_domains()
957 		    cpumask_subset(cp->cpus_allowed, top_cpuset.effective_cpus))  in generate_sched_domains()
1102 	cpuset_for_each_descendant_pre(cs, pos_css, &top_cpuset) {  in dl_rebuild_rd_accounting()
1162 	if (!top_cpuset.nr_subparts_cpus &&  in rebuild_sched_domains_locked()
1163 	    !cpumask_equal(top_cpuset.effective_cpus, cpu_active_mask))  in rebuild_sched_domains_locked()
1171 	if (top_cpuset.nr_subparts_cpus) {  in rebuild_sched_domains_locked()
1173 		cpuset_for_each_descendant_pre(cs, pos_css, &top_cpuset) {  in rebuild_sched_domains_locked()
1223 	bool top_cs = cs == &top_cpuset;  in update_tasks_cpumask()
1833 	if (cs == &top_cpuset)  in update_cpumask()
1850 				    top_cpuset.cpus_allowed))  in update_cpumask()
2163 	if (cs == &top_cpuset) {  in update_nodemask()
2182 				  top_cpuset.mems_allowed)) {  in update_nodemask()
2638 	if (cs != &top_cpuset)  in cpuset_attach_task()
3228 		return &top_cpuset.css;  in cpuset_css_alloc()
3379 		cpumask_copy(top_cpuset.cpus_allowed, cpu_possible_mask);  in cpuset_bind()
3380 		top_cpuset.mems_allowed = node_possible_map;  in cpuset_bind()
3382 		cpumask_copy(top_cpuset.cpus_allowed,  in cpuset_bind()
3383 			     top_cpuset.effective_cpus);  in cpuset_bind()
3384 		top_cpuset.mems_allowed = top_cpuset.effective_mems;  in cpuset_bind()
3469 		if (cs == &top_cpuset)  in cpuset_fork()
3516 	BUG_ON(!alloc_cpumask_var(&top_cpuset.cpus_allowed, GFP_KERNEL));  in cpuset_init()
3517 	BUG_ON(!alloc_cpumask_var(&top_cpuset.effective_cpus, GFP_KERNEL));  in cpuset_init()
3518 	BUG_ON(!zalloc_cpumask_var(&top_cpuset.subparts_cpus, GFP_KERNEL));  in cpuset_init()
3520 	cpumask_setall(top_cpuset.cpus_allowed);  in cpuset_init()
3521 	nodes_setall(top_cpuset.mems_allowed);  in cpuset_init()
3522 	cpumask_setall(top_cpuset.effective_cpus);  in cpuset_init()
3523 	nodes_setall(top_cpuset.effective_mems);  in cpuset_init()
3525 	fmeter_init(&top_cpuset.fmeter);  in cpuset_init()
3526 	set_bit(CS_SCHED_LOAD_BALANCE, &top_cpuset.flags);  in cpuset_init()
3527 	top_cpuset.relax_domain_level = -1;  in cpuset_init()
3793 	cpus_updated = !cpumask_equal(top_cpuset.effective_cpus, &new_cpus);  in cpuset_hotplug_workfn()
3794 	mems_updated = !nodes_equal(top_cpuset.effective_mems, new_mems);  in cpuset_hotplug_workfn()
3800 	if (!cpus_updated && top_cpuset.nr_subparts_cpus)  in cpuset_hotplug_workfn()
3807 			cpumask_copy(top_cpuset.cpus_allowed, &new_cpus);  in cpuset_hotplug_workfn()
3814 		if (top_cpuset.nr_subparts_cpus) {  in cpuset_hotplug_workfn()
3816 					   top_cpuset.subparts_cpus)) {  in cpuset_hotplug_workfn()
3817 				top_cpuset.nr_subparts_cpus = 0;  in cpuset_hotplug_workfn()
3818 				cpumask_clear(top_cpuset.subparts_cpus);  in cpuset_hotplug_workfn()
3821 					       top_cpuset.subparts_cpus);  in cpuset_hotplug_workfn()
3824 		cpumask_copy(top_cpuset.effective_cpus, &new_cpus);  in cpuset_hotplug_workfn()
3833 			top_cpuset.mems_allowed = new_mems;  in cpuset_hotplug_workfn()
3834 		top_cpuset.effective_mems = new_mems;  in cpuset_hotplug_workfn()
3836 		update_tasks_nodemask(&top_cpuset);  in cpuset_hotplug_workfn()
3847 		cpuset_for_each_descendant_pre(cs, pos_css, &top_cpuset) {  in cpuset_hotplug_workfn()
3848 			if (cs == &top_cpuset || !css_tryget_online(&cs->css))  in cpuset_hotplug_workfn()
3908 	top_cpuset.old_mems_allowed = top_cpuset.mems_allowed;  in cpuset_init_smp()
3910 	cpumask_copy(top_cpuset.effective_cpus, cpu_active_mask);  in cpuset_init_smp()
3911 	top_cpuset.effective_mems = node_states[N_MEMORY];  in cpuset_init_smp()
3939 	if (cs != &top_cpuset)  in cpuset_cpus_allowed()
3946 	if ((cs == &top_cpuset) || cpumask_empty(pmask)) {  in cpuset_cpus_allowed()
3953 		cpumask_andnot(pmask, possible_mask, top_cpuset.subparts_cpus);  in cpuset_cpus_allowed()