636 static struct cgroup *kn_priv(struct kernfs_node *kn)  in kn_priv()  argument
644 	parent = rcu_dereference_check(kn->__parent,  in kn_priv()
645 				       kernfs_root_flags(kn) & KERNFS_ROOT_INVARIANT_PARENT);  in kn_priv()
651 	struct cgroup *cgrp = kn_priv(of->kn);  in of_css()
1621 void cgroup_kn_unlock(struct kernfs_node *kn)  in cgroup_kn_unlock()  argument
1625 	if (kernfs_type(kn) == KERNFS_DIR)  in cgroup_kn_unlock()
1626 		cgrp = kn->priv;  in cgroup_kn_unlock()
1628 		cgrp = kn_priv(kn);  in cgroup_kn_unlock()
1632 	kernfs_unbreak_active_protection(kn);  in cgroup_kn_unlock()
1653 struct cgroup *cgroup_kn_lock_live(struct kernfs_node *kn, bool drain_offline)  in cgroup_kn_lock_live()  argument
1657 	if (kernfs_type(kn) == KERNFS_DIR)  in cgroup_kn_lock_live()
1658 		cgrp = kn->priv;  in cgroup_kn_lock_live()
1660 		cgrp = kn_priv(kn);  in cgroup_kn_lock_live()
1670 	kernfs_break_active_protection(kn);  in cgroup_kn_lock_live()
1680 	cgroup_kn_unlock(kn);  in cgroup_kn_lock_live()
1695 		cfile->kn = NULL;  in cgroup_rm_file()
1701 	kernfs_remove_by_name(cgrp->kn, cgroup_file_name(cgrp, cft, name));  in cgroup_rm_file()
1904 	kernfs_activate(dcgrp->kn);  in rebind_subsystems()
1922 	len = kernfs_path_from_node(kf_node, ns_cgroup->kn, buf, PATH_MAX);  in cgroup_show_path()
2141 	root_cgrp->kn = kernfs_root_to_node(root->kf_root);  in cgroup_setup_root()
2233 		nsdentry = kernfs_node_dentry(cgrp->kn, sb);  in cgroup_do_get_tree()
2433 	return kernfs_path_from_node(cgrp->kn, root->kn, buf, buflen);  in cgroup_path_ns_locked()
3472 	cgrp = cgroup_kn_lock_live(of->kn, true);  in cgroup_subtree_control_write()
3523 	kernfs_activate(cgrp->kn);  in cgroup_subtree_control_write()
3525 	cgroup_kn_unlock(of->kn);  in cgroup_subtree_control_write()
3612 	cgrp = cgroup_kn_lock_live(of->kn, true);  in cgroup_type_write()
3619 	cgroup_kn_unlock(of->kn);  in cgroup_type_write()
3655 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_max_descendants_write()
3661 	cgroup_kn_unlock(of->kn);  in cgroup_max_descendants_write()
3698 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_max_depth_write()
3704 	cgroup_kn_unlock(of->kn);  in cgroup_max_depth_write()
3874 	cgrp = cgroup_kn_lock_live(of->kn, false);  in pressure_write()
3879 	cgroup_kn_unlock(of->kn);  in pressure_write()
3964 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_pressure_write()
3981 	cgroup_kn_unlock(of->kn);  in cgroup_pressure_write()
4040 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_freeze_write()
4046 	cgroup_kn_unlock(of->kn);  in cgroup_freeze_write()
4102 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_kill_write()
4116 	cgroup_kn_unlock(of->kn);  in cgroup_kill_write()
4161 	struct cgroup *cgrp = kn_priv(of->kn);  in cgroup_file_write()
4284 	struct kernfs_node *kn;  in cgroup_add_file()  local
4290 	kn = __kernfs_create_file(cgrp->kn, cgroup_file_name(cgrp, cft, name),  in cgroup_add_file()
4295 	if (IS_ERR(kn))  in cgroup_add_file()
4296 		return PTR_ERR(kn);  in cgroup_add_file()
4304 		cfile->kn = kn;  in cgroup_add_file()
4381 		kernfs_activate(root->kn);  in cgroup_apply_cftypes()
4563 	if (cfile->kn) {  in cgroup_file_notify()
4570 			kernfs_notify(cfile->kn);  in cgroup_file_notify()
4584 	struct kernfs_node *kn;  in cgroup_file_show()  local
4587 	kn = cfile->kn;  in cgroup_file_show()
4588 	kernfs_get(kn);  in cgroup_file_show()
4591 	if (kn)  in cgroup_file_show()
4592 		kernfs_show(kn, show);  in cgroup_file_show()
4594 	kernfs_put(kn);  in cgroup_file_show()
5168 	inode = kernfs_get_inode(sb, cgrp->procs_file.kn);  in cgroup_may_write()
5239 	dst_cgrp = cgroup_kn_lock_live(of->kn, false);  in __cgroup_procs_write()
5271 	cgroup_kn_unlock(of->kn);  in __cgroup_procs_write()
5475 			kernfs_put(cgrp->kn);  in css_free_rwork_fn()
5550 		if (cgrp->kn)  in css_release_work_fn()
5551 			RCU_INIT_POINTER(*(void __rcu __force **)&cgrp->kn->priv,  in css_release_work_fn()
5715 	struct kernfs_node *kn;  in cgroup_create()  local
5733 	kn = kernfs_create_dir_ns(parent->kn, name, mode,  in cgroup_create()
5736 	if (IS_ERR(kn)) {  in cgroup_create()
5737 		ret = PTR_ERR(kn);  in cgroup_create()
5740 	cgrp->kn = kn;  in cgroup_create()
5819 	kernfs_remove(cgrp->kn);  in cgroup_create()
5880 	kernfs_get(cgrp->kn);  in cgroup_mkdir()
5893 	kernfs_activate(cgrp->kn);  in cgroup_mkdir()
6056 	kernfs_remove(cgrp->kn);  in cgroup_destroy_locked()
6085 int cgroup_rmdir(struct kernfs_node *kn)  in cgroup_rmdir()  argument
6090 	cgrp = cgroup_kn_lock_live(kn, false);  in cgroup_rmdir()
6098 	cgroup_kn_unlock(kn);  in cgroup_rmdir()
6321 	struct kernfs_node *kn;  in cgroup_path_from_kernfs_id()  local
6323 	kn = kernfs_find_and_get_node_by_id(cgrp_dfl_root.kf_root, id);  in cgroup_path_from_kernfs_id()
6324 	if (!kn)  in cgroup_path_from_kernfs_id()
6326 	kernfs_path(kn, buf, buflen);  in cgroup_path_from_kernfs_id()
6327 	kernfs_put(kn);  in cgroup_path_from_kernfs_id()
6338 	struct kernfs_node *kn;  in cgroup_get_from_id()  local
6341 	kn = kernfs_find_and_get_node_by_id(cgrp_dfl_root.kf_root, id);  in cgroup_get_from_id()
6342 	if (!kn)  in cgroup_get_from_id()
6345 	if (kernfs_type(kn) != KERNFS_DIR) {  in cgroup_get_from_id()
6346 		kernfs_put(kn);  in cgroup_get_from_id()
6352 	cgrp = rcu_dereference(*(void __rcu __force **)&kn->priv);  in cgroup_get_from_id()
6357 	kernfs_put(kn);  in cgroup_get_from_id()
6928 	struct kernfs_node *kn = kernfs_node_from_dentry(dentry);  in css_tryget_online_from_dir()  local
6935 	    !kn || kernfs_type(kn) != KERNFS_DIR)  in css_tryget_online_from_dir()
6945 	cgrp = rcu_dereference(*(void __rcu __force **)&kn->priv);  in css_tryget_online_from_dir()
6981 	struct kernfs_node *kn;  in cgroup_get_from_path()  local
6986 	kn = kernfs_walk_and_get(root_cgrp->kn, path);  in cgroup_get_from_path()
6987 	if (!kn)  in cgroup_get_from_path()
6990 	if (kernfs_type(kn) != KERNFS_DIR) {  in cgroup_get_from_path()
6997 	cgrp = rcu_dereference(*(void __rcu __force **)&kn->priv);  in cgroup_get_from_path()
7004 	kernfs_put(kn);  in cgroup_get_from_path()