1289 	struct cgroup *root_cgrp = kernfs_root_to_node(kf_root)->priv;  in cgroup_root_from_kf()  local
1291 	return root_cgrp->root;  in cgroup_root_from_kf()
2101 	struct cgroup *root_cgrp = &root->cgrp;  in cgroup_setup_root()  local
2108 	ret = percpu_ref_init(&root_cgrp->self.refcnt, css_release,  in cgroup_setup_root()
2136 					   root_cgrp);  in cgroup_setup_root()
2141 	root_cgrp->kn = kernfs_root_to_node(root->kf_root);  in cgroup_setup_root()
2142 	WARN_ON_ONCE(cgroup_ino(root_cgrp) != 1);  in cgroup_setup_root()
2143 	root_cgrp->ancestors[0] = root_cgrp;  in cgroup_setup_root()
2145 	ret = css_populate_dir(&root_cgrp->self);  in cgroup_setup_root()
2149 	ret = cgroup_rstat_init(root_cgrp);  in cgroup_setup_root()
2158 		ret = cgroup_bpf_inherit(root_cgrp);  in cgroup_setup_root()
2178 		link_css_set(&tmp_links, cset, root_cgrp);  in cgroup_setup_root()
2180 			cgroup_update_populated(root_cgrp, true);  in cgroup_setup_root()
2184 	BUG_ON(!list_empty(&root_cgrp->self.children));  in cgroup_setup_root()
2191 	cgroup_rstat_exit(root_cgrp);  in cgroup_setup_root()
2198 	percpu_ref_exit(&root_cgrp->self.refcnt);  in cgroup_setup_root()
6339 	struct cgroup *cgrp, *root_cgrp;  in cgroup_get_from_id()  local
6362 	root_cgrp = current_cgns_cgroup_dfl();  in cgroup_get_from_id()
6363 	if (!cgroup_is_descendant(cgrp, root_cgrp)) {  in cgroup_get_from_id()
6983 	struct cgroup *root_cgrp;  in cgroup_get_from_path()  local
6985 	root_cgrp = current_cgns_cgroup_dfl();  in cgroup_get_from_path()
6986 	kn = kernfs_walk_and_get(root_cgrp->kn, path);  in cgroup_get_from_path()