1302 struct cgroup_root *cgroup_root_from_kf(struct kernfs_root *kf_root)  in cgroup_root_from_kf()  argument
1304 	struct cgroup *root_cgrp = kf_root->kn->priv;  in cgroup_root_from_kf()
1374 	kernfs_destroy_root(root->kf_root);  in cgroup_destroy_root()
1815 		     struct kernfs_root *kf_root)  in cgroup_show_path()  argument
1819 	struct cgroup_root *kf_cgroot = cgroup_root_from_kf(kf_root);  in cgroup_show_path()
1899 static int cgroup_show_options(struct seq_file *seq, struct kernfs_root *kf_root)  in cgroup_show_options()  argument
1995 	root->kf_root = kernfs_create_root(kf_sops,  in cgroup_setup_root()
2000 	if (IS_ERR(root->kf_root)) {  in cgroup_setup_root()
2001 		ret = PTR_ERR(root->kf_root);  in cgroup_setup_root()
2004 	root_cgrp->kn = root->kf_root->kn;  in cgroup_setup_root()
2054 	kernfs_destroy_root(root->kf_root);  in cgroup_setup_root()
2055 	root->kf_root = NULL;  in cgroup_setup_root()
2070 	ctx->kfc.root = ctx->root->kf_root;  in cgroup_do_get_tree()
2180 	struct kernfs_root *kf_root = kernfs_root_from_sb(sb);  in cgroup_kill_sb()  local
2181 	struct cgroup_root *root = cgroup_root_from_kf(kf_root);  in cgroup_kill_sb()
5897 	kn = kernfs_find_and_get_node_by_id(cgrp_dfl_root.kf_root, id);  in cgroup_path_from_kernfs_id()
5915 	kn = kernfs_find_and_get_node_by_id(cgrp_dfl_root.kf_root, id);  in cgroup_get_from_id()