1329 	struct cgroup *root_cgrp = kernfs_root_to_node(kf_root)->priv;  in cgroup_root_from_kf()  local
1331 	return root_cgrp->root;  in cgroup_root_from_kf()
2158 	struct cgroup *root_cgrp = &root->cgrp;  in cgroup_setup_root()  local
2165 	ret = percpu_ref_init(&root_cgrp->self.refcnt, css_release,  in cgroup_setup_root()
2193 					   root_cgrp);  in cgroup_setup_root()
2198 	root_cgrp->kn = kernfs_root_to_node(root->kf_root);  in cgroup_setup_root()
2199 	WARN_ON_ONCE(cgroup_ino(root_cgrp) != 1);  in cgroup_setup_root()
2200 	root_cgrp->ancestors[0] = root_cgrp;  in cgroup_setup_root()
2202 	ret = css_populate_dir(&root_cgrp->self);  in cgroup_setup_root()
2206 	ret = css_rstat_init(&root_cgrp->self);  in cgroup_setup_root()
2215 					   CGROUP_LIFETIME_ONLINE, root_cgrp);  in cgroup_setup_root()
2234 		link_css_set(&tmp_links, cset, root_cgrp);  in cgroup_setup_root()
2236 			cgroup_update_populated(root_cgrp, true);  in cgroup_setup_root()
2240 	BUG_ON(!list_empty(&root_cgrp->self.children));  in cgroup_setup_root()
2247 	css_rstat_exit(&root_cgrp->self);  in cgroup_setup_root()
2254 	percpu_ref_exit(&root_cgrp->self.refcnt);  in cgroup_setup_root()
6525 	struct cgroup *cgrp, *root_cgrp;  in cgroup_get_from_id()  local
6531 	root_cgrp = current_cgns_cgroup_dfl();  in cgroup_get_from_id()
6532 	if (!cgroup_is_descendant(cgrp, root_cgrp)) {  in cgroup_get_from_id()
7209 	struct cgroup *root_cgrp;  in cgroup_get_from_path()  local
7211 	root_cgrp = current_cgns_cgroup_dfl();  in cgroup_get_from_path()
7212 	kn = kernfs_walk_and_get(root_cgrp->kn, path);  in cgroup_get_from_path()