171 struct cgroup_root cgrp_dfl_root = {  variable
175 EXPORT_SYMBOL_GPL(cgrp_dfl_root);
328 	return cgrp->root == &cgrp_dfl_root;  in cgroup_on_dfl()
767 	.dfl_cgrp		= &cgrp_dfl_root.cgrp,
1349 	cgroup_lock_and_drain_offline(&cgrp_dfl_root.cgrp);  in cgroup_destroy_root()
1359 	WARN_ON(rebind_subsystems(&cgrp_dfl_root, root->subsys_mask));  in cgroup_destroy_root()
1400 	} else if (root == &cgrp_dfl_root) {  in __cset_cgroup_from_root()
1472 		return __cset_cgroup_from_root(cset, &cgrp_dfl_root);  in current_cgns_cgroup_dfl()
1480 		return &cgrp_dfl_root.cgrp;  in current_cgns_cgroup_dfl()
1825 		if (ss->root != &cgrp_dfl_root && dst_root != &cgrp_dfl_root)  in rebind_subsystems()
1832 		if (ss->root == &cgrp_dfl_root)  in rebind_subsystems()
1838 		struct cgroup *scgrp = &cgrp_dfl_root.cgrp;  in rebind_subsystems()
1844 		cgrp_dfl_root.subsys_mask &= ~dfl_disable_ss_mask;  in rebind_subsystems()
1858 		if (src_root != &cgrp_dfl_root) {  in rebind_subsystems()
1892 		if (dst_root == &cgrp_dfl_root) {  in rebind_subsystems()
2003 			cgrp_dfl_root.flags |= CGRP_ROOT_NS_DELEGATE;  in apply_cgroup_root_flags()
2005 			cgrp_dfl_root.flags &= ~CGRP_ROOT_NS_DELEGATE;  in apply_cgroup_root_flags()
2007 		cgroup_favor_dynmods(&cgrp_dfl_root,  in apply_cgroup_root_flags()
2011 			cgrp_dfl_root.flags |= CGRP_ROOT_MEMORY_LOCAL_EVENTS;  in apply_cgroup_root_flags()
2013 			cgrp_dfl_root.flags &= ~CGRP_ROOT_MEMORY_LOCAL_EVENTS;  in apply_cgroup_root_flags()
2016 			cgrp_dfl_root.flags |= CGRP_ROOT_MEMORY_RECURSIVE_PROT;  in apply_cgroup_root_flags()
2018 			cgrp_dfl_root.flags &= ~CGRP_ROOT_MEMORY_RECURSIVE_PROT;  in apply_cgroup_root_flags()
2021 			cgrp_dfl_root.flags |= CGRP_ROOT_MEMORY_HUGETLB_ACCOUNTING;  in apply_cgroup_root_flags()
2023 			cgrp_dfl_root.flags &= ~CGRP_ROOT_MEMORY_HUGETLB_ACCOUNTING;  in apply_cgroup_root_flags()
2026 			cgrp_dfl_root.flags |= CGRP_ROOT_PIDS_LOCAL_EVENTS;  in apply_cgroup_root_flags()
2028 			cgrp_dfl_root.flags &= ~CGRP_ROOT_PIDS_LOCAL_EVENTS;  in apply_cgroup_root_flags()
2034 	if (cgrp_dfl_root.flags & CGRP_ROOT_NS_DELEGATE)  in cgroup_show_options()
2036 	if (cgrp_dfl_root.flags & CGRP_ROOT_FAVOR_DYNMODS)  in cgroup_show_options()
2038 	if (cgrp_dfl_root.flags & CGRP_ROOT_MEMORY_LOCAL_EVENTS)  in cgroup_show_options()
2040 	if (cgrp_dfl_root.flags & CGRP_ROOT_MEMORY_RECURSIVE_PROT)  in cgroup_show_options()
2042 	if (cgrp_dfl_root.flags & CGRP_ROOT_MEMORY_HUGETLB_ACCOUNTING)  in cgroup_show_options()
2044 	if (cgrp_dfl_root.flags & CGRP_ROOT_PIDS_LOCAL_EVENTS)  in cgroup_show_options()
2136 	kf_sops = root == &cgrp_dfl_root ?  in cgroup_setup_root()
2276 	cgroup_get_live(&cgrp_dfl_root.cgrp);  in cgroup_get_tree()
2277 	ctx->root = &cgrp_dfl_root;  in cgroup_get_tree()
2339 	if (list_empty(&root->cgrp.self.children) && root != &cgrp_dfl_root &&  in cgroup_kill_sb()
3747 		    (cgroup_subsys[ssid]->root !=  &cgrp_dfl_root))  in cgroup_stat_show()
5207 	if ((cgrp_dfl_root.flags & CGRP_ROOT_NS_DELEGATE) &&  in cgroup_procs_write_permission()
5257 	src_cgrp = task_cgroup_from_root(task, &cgrp_dfl_root);  in __cgroup_procs_write()
6129 	ss->root = &cgrp_dfl_root;  in cgroup_init_subsys()
6133 	init_and_link_css(css, ss, &cgrp_dfl_root.cgrp);  in cgroup_init_subsys()
6185 	ctx.root = &cgrp_dfl_root;  in cgroup_init_early()
6187 	cgrp_dfl_root.cgrp.self.flags |= CSS_NO_REF;  in cgroup_init_early()
6243 	BUG_ON(cgroup_setup_root(&cgrp_dfl_root, 0));  in cgroup_init()
6260 			      &cgrp_dfl_root.cgrp.e_csets[ssid]);  in cgroup_init()
6274 		cgrp_dfl_root.subsys_mask |= 1 << ss->id;  in cgroup_init()
6338 	kn = kernfs_find_and_get_node_by_id(cgrp_dfl_root.kf_root, id);  in cgroup_path_from_kernfs_id()
6356 	kn = kernfs_find_and_get_node_by_id(cgrp_dfl_root.kf_root, id);  in cgroup_get_from_id()
6412 		if (root == &cgrp_dfl_root && !READ_ONCE(cgrp_dfl_visible))  in proc_cgroup_show()
6421 		if (root != &cgrp_dfl_root)  in proc_cgroup_show()
7118 		cgroup = &cgrp_dfl_root.cgrp;  in cgroup_sk_alloc()