625 	struct cgroup *cgrp = of->kn->parent->priv;  in of_css()
1276 	struct cgroup *root_cgrp = kf_root->kn->priv;  in cgroup_root_from_kf()
1553 void cgroup_kn_unlock(struct kernfs_node *kn)  in cgroup_kn_unlock()  argument
1557 	if (kernfs_type(kn) == KERNFS_DIR)  in cgroup_kn_unlock()
1558 		cgrp = kn->priv;  in cgroup_kn_unlock()
1560 		cgrp = kn->parent->priv;  in cgroup_kn_unlock()
1564 	kernfs_unbreak_active_protection(kn);  in cgroup_kn_unlock()
1585 struct cgroup *cgroup_kn_lock_live(struct kernfs_node *kn, bool drain_offline)  in cgroup_kn_lock_live()  argument
1589 	if (kernfs_type(kn) == KERNFS_DIR)  in cgroup_kn_lock_live()
1590 		cgrp = kn->priv;  in cgroup_kn_lock_live()
1592 		cgrp = kn->parent->priv;  in cgroup_kn_lock_live()
1602 	kernfs_break_active_protection(kn);  in cgroup_kn_lock_live()
1612 	cgroup_kn_unlock(kn);  in cgroup_kn_lock_live()
1627 		cfile->kn = NULL;  in cgroup_rm_file()
1633 	kernfs_remove_by_name(cgrp->kn, cgroup_file_name(cgrp, cft, name));  in cgroup_rm_file()
1675 	if ((css->flags & CSS_VISIBLE) || !cgrp->kn)  in css_populate_dir()
1775 	kernfs_activate(dcgrp->kn);  in rebind_subsystems()
1793 	len = kernfs_path_from_node(kf_node, ns_cgroup->kn, buf, PATH_MAX);  in cgroup_show_path()
1969 	root_cgrp->kn = root->kf_root->kn;  in cgroup_setup_root()
2053 		nsdentry = kernfs_node_dentry(cgrp->kn, sb);  in cgroup_do_get_tree()
2221 	return kernfs_path_from_node(cgrp->kn, root->kn, buf, buflen);  in cgroup_path_ns_locked()
3252 	cgrp = cgroup_kn_lock_live(of->kn, true);  in cgroup_subtree_control_write()
3303 	kernfs_activate(cgrp->kn);  in cgroup_subtree_control_write()
3305 	cgroup_kn_unlock(of->kn);  in cgroup_subtree_control_write()
3392 	cgrp = cgroup_kn_lock_live(of->kn, true);  in cgroup_type_write()
3399 	cgroup_kn_unlock(of->kn);  in cgroup_type_write()
3435 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_max_descendants_write()
3441 	cgroup_kn_unlock(of->kn);  in cgroup_max_descendants_write()
3478 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_max_depth_write()
3484 	cgroup_kn_unlock(of->kn);  in cgroup_max_depth_write()
3571 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_pressure_write()
3576 	cgroup_kn_unlock(of->kn);  in cgroup_pressure_write()
3647 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_freeze_write()
3653 	cgroup_kn_unlock(of->kn);  in cgroup_freeze_write()
3660 	struct cftype *cft = of->kn->priv;  in cgroup_file_open()
3669 	struct cftype *cft = of->kn->priv;  in cgroup_file_release()
3679 	struct cgroup *cgrp = of->kn->parent->priv;  in cgroup_file_write()
3680 	struct cftype *cft = of->kn->priv;  in cgroup_file_write()
3730 	struct cftype *cft = of->kn->priv;  in cgroup_file_poll()
3793 static int cgroup_kn_set_ugid(struct kernfs_node *kn)  in cgroup_kn_set_ugid()  argument
3803 	return kernfs_setattr(kn, &iattr);  in cgroup_kn_set_ugid()
3816 	struct kernfs_node *kn;  in cgroup_add_file()  local
3823 	kn = __kernfs_create_file(cgrp->kn, cgroup_file_name(cgrp, cft, name),  in cgroup_add_file()
3828 	if (IS_ERR(kn))  in cgroup_add_file()
3829 		return PTR_ERR(kn);  in cgroup_add_file()
3831 	ret = cgroup_kn_set_ugid(kn);  in cgroup_add_file()
3833 		kernfs_remove(kn);  in cgroup_add_file()
3843 		cfile->kn = kn;  in cgroup_add_file()
3920 		kernfs_activate(root->kn);  in cgroup_apply_cftypes()
4092 	if (cfile->kn) {  in cgroup_file_notify()
4099 			kernfs_notify(cfile->kn);  in cgroup_file_notify()
4672 	inode = kernfs_get_inode(sb, cgrp->procs_file.kn);  in cgroup_may_write()
4740 	dst_cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_procs_write()
4764 	cgroup_kn_unlock(of->kn);  in cgroup_procs_write()
4784 	dst_cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_threads_write()
4809 	cgroup_kn_unlock(of->kn);  in cgroup_threads_write()
4963 			kernfs_put(cgrp->kn);  in css_free_rwork_fn()
5023 		if (cgrp->kn)  in css_release_work_fn()
5024 			RCU_INIT_POINTER(*(void __rcu __force **)&cgrp->kn->priv,  in css_release_work_fn()
5185 	struct kernfs_node *kn;  in cgroup_create()  local
5206 	kn = kernfs_create_dir(parent->kn, name, mode, cgrp);  in cgroup_create()
5207 	if (IS_ERR(kn)) {  in cgroup_create()
5208 		ret = PTR_ERR(kn);  in cgroup_create()
5211 	cgrp->kn = kn;  in cgroup_create()
5288 	kernfs_remove(cgrp->kn);  in cgroup_create()
5350 	kernfs_get(cgrp->kn);  in cgroup_mkdir()
5352 	ret = cgroup_kn_set_ugid(cgrp->kn);  in cgroup_mkdir()
5367 	kernfs_activate(cgrp->kn);  in cgroup_mkdir()
5524 	kernfs_remove(cgrp->kn);  in cgroup_destroy_locked()
5552 int cgroup_rmdir(struct kernfs_node *kn)  in cgroup_rmdir()  argument
5557 	cgrp = cgroup_kn_lock_live(kn, false);  in cgroup_rmdir()
5565 	cgroup_kn_unlock(kn);  in cgroup_rmdir()
5799 	struct kernfs_node *kn;  in cgroup_path_from_kernfs_id()  local
5801 	kn = kernfs_find_and_get_node_by_id(cgrp_dfl_root.kf_root, id);  in cgroup_path_from_kernfs_id()
5802 	if (!kn)  in cgroup_path_from_kernfs_id()
5804 	kernfs_path(kn, buf, buflen);  in cgroup_path_from_kernfs_id()
5805 	kernfs_put(kn);  in cgroup_path_from_kernfs_id()
6275 	struct kernfs_node *kn = kernfs_node_from_dentry(dentry);  in css_tryget_online_from_dir()  local
6282 	    !kn || kernfs_type(kn) != KERNFS_DIR)  in css_tryget_online_from_dir()
6292 	cgrp = rcu_dereference(*(void __rcu __force **)&kn->priv);  in css_tryget_online_from_dir()
6328 	struct kernfs_node *kn;  in cgroup_get_from_path()  local
6333 	kn = kernfs_walk_and_get(cgrp_dfl_root.cgrp.kn, path);  in cgroup_get_from_path()
6334 	if (kn) {  in cgroup_get_from_path()
6335 		if (kernfs_type(kn) == KERNFS_DIR) {  in cgroup_get_from_path()
6336 			cgrp = kn->priv;  in cgroup_get_from_path()
6341 		kernfs_put(kn);  in cgroup_get_from_path()