566 	struct cgroup *cgrp = of->kn->parent->priv;  in of_css()
1211 	struct cgroup *root_cgrp = kf_root->kn->priv;  in cgroup_root_from_kf()
1487 void cgroup_kn_unlock(struct kernfs_node *kn)  in cgroup_kn_unlock()  argument
1491 	if (kernfs_type(kn) == KERNFS_DIR)  in cgroup_kn_unlock()
1492 		cgrp = kn->priv;  in cgroup_kn_unlock()
1494 		cgrp = kn->parent->priv;  in cgroup_kn_unlock()
1498 	kernfs_unbreak_active_protection(kn);  in cgroup_kn_unlock()
1519 struct cgroup *cgroup_kn_lock_live(struct kernfs_node *kn, bool drain_offline)  in cgroup_kn_lock_live()  argument
1523 	if (kernfs_type(kn) == KERNFS_DIR)  in cgroup_kn_lock_live()
1524 		cgrp = kn->priv;  in cgroup_kn_lock_live()
1526 		cgrp = kn->parent->priv;  in cgroup_kn_lock_live()
1536 	kernfs_break_active_protection(kn);  in cgroup_kn_lock_live()
1546 	cgroup_kn_unlock(kn);  in cgroup_kn_lock_live()
1561 		cfile->kn = NULL;  in cgroup_rm_file()
1567 	kernfs_remove_by_name(cgrp->kn, cgroup_file_name(cgrp, cft, name));  in cgroup_rm_file()
1609 	if ((css->flags & CSS_VISIBLE) || !cgrp->kn)  in css_populate_dir()
1709 	kernfs_activate(dcgrp->kn);  in rebind_subsystems()
1727 	len = kernfs_path_from_node(kf_node, ns_cgroup->kn, buf, PATH_MAX);  in cgroup_show_path()
1942 	root_cgrp->kn = root->kf_root->kn;  in cgroup_setup_root()
1980 	kernfs_activate(root_cgrp->kn);  in cgroup_setup_root()
2021 		nsdentry = kernfs_node_dentry(cgrp->kn, dentry->d_sb);  in cgroup_do_mount()
2120 	return kernfs_path_from_node(cgrp->kn, root->kn, buf, buflen);  in cgroup_path_ns_locked()
3133 	cgrp = cgroup_kn_lock_live(of->kn, true);  in cgroup_subtree_control_write()
3184 	kernfs_activate(cgrp->kn);  in cgroup_subtree_control_write()
3186 	cgroup_kn_unlock(of->kn);  in cgroup_subtree_control_write()
3272 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_type_write()
3279 	cgroup_kn_unlock(of->kn);  in cgroup_type_write()
3315 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_max_descendants_write()
3321 	cgroup_kn_unlock(of->kn);  in cgroup_max_descendants_write()
3358 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_max_depth_write()
3364 	cgroup_kn_unlock(of->kn);  in cgroup_max_depth_write()
3421 	struct cftype *cft = of->kn->priv;  in cgroup_file_open()
3430 	struct cftype *cft = of->kn->priv;  in cgroup_file_release()
3440 	struct cgroup *cgrp = of->kn->parent->priv;  in cgroup_file_write()
3441 	struct cftype *cft = of->kn->priv;  in cgroup_file_write()
3539 static int cgroup_kn_set_ugid(struct kernfs_node *kn)  in cgroup_kn_set_ugid()  argument
3549 	return kernfs_setattr(kn, &iattr);  in cgroup_kn_set_ugid()
3562 	struct kernfs_node *kn;  in cgroup_add_file()  local
3569 	kn = __kernfs_create_file(cgrp->kn, cgroup_file_name(cgrp, cft, name),  in cgroup_add_file()
3574 	if (IS_ERR(kn))  in cgroup_add_file()
3575 		return PTR_ERR(kn);  in cgroup_add_file()
3577 	ret = cgroup_kn_set_ugid(kn);  in cgroup_add_file()
3579 		kernfs_remove(kn);  in cgroup_add_file()
3589 		cfile->kn = kn;  in cgroup_add_file()
3665 		kernfs_activate(root->kn);  in cgroup_apply_cftypes()
3837 	if (cfile->kn) {  in cgroup_file_notify()
3844 			kernfs_notify(cfile->kn);  in cgroup_file_notify()
4381 	inode = kernfs_get_inode(sb, com_cgrp->procs_file.kn);  in cgroup_procs_write_permission()
4409 	dst_cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_procs_write()
4433 	cgroup_kn_unlock(of->kn);  in cgroup_procs_write()
4452 	dst_cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_threads_write()
4482 	cgroup_kn_unlock(of->kn);  in cgroup_threads_write()
4608 			kernfs_put(cgrp->kn);  in css_free_rwork_fn()
4668 		if (cgrp->kn)  in css_release_work_fn()
4669 			RCU_INIT_POINTER(*(void __rcu __force **)&cgrp->kn->priv,  in css_release_work_fn()
4944 	struct kernfs_node *kn;  in cgroup_mkdir()  local
4967 	kn = kernfs_create_dir(parent->kn, name, mode, cgrp);  in cgroup_mkdir()
4968 	if (IS_ERR(kn)) {  in cgroup_mkdir()
4969 		ret = PTR_ERR(kn);  in cgroup_mkdir()
4972 	cgrp->kn = kn;  in cgroup_mkdir()
4978 	kernfs_get(kn);  in cgroup_mkdir()
4980 	ret = cgroup_kn_set_ugid(kn);  in cgroup_mkdir()
4995 	kernfs_activate(kn);  in cgroup_mkdir()
5152 	kernfs_remove(cgrp->kn);  in cgroup_destroy_locked()
5170 int cgroup_rmdir(struct kernfs_node *kn)  in cgroup_rmdir()  argument
5175 	cgrp = cgroup_kn_lock_live(kn, false);  in cgroup_rmdir()
5183 	cgroup_kn_unlock(kn);  in cgroup_rmdir()
5416 	struct kernfs_node *kn;  in cgroup_path_from_kernfs_id()  local
5418 	kn = kernfs_get_node_by_id(cgrp_dfl_root.kf_root, id);  in cgroup_path_from_kernfs_id()
5419 	if (!kn)  in cgroup_path_from_kernfs_id()
5421 	kernfs_path(kn, buf, buflen);  in cgroup_path_from_kernfs_id()
5422 	kernfs_put(kn);  in cgroup_path_from_kernfs_id()
5717 	struct kernfs_node *kn = kernfs_node_from_dentry(dentry);  in css_tryget_online_from_dir()  local
5724 	    !kn || kernfs_type(kn) != KERNFS_DIR)  in css_tryget_online_from_dir()
5734 	cgrp = rcu_dereference(*(void __rcu __force **)&kn->priv);  in css_tryget_online_from_dir()
5770 	struct kernfs_node *kn;  in cgroup_get_from_path()  local
5775 	kn = kernfs_walk_and_get(cgrp_dfl_root.cgrp.kn, path);  in cgroup_get_from_path()
5776 	if (kn) {  in cgroup_get_from_path()
5777 		if (kernfs_type(kn) == KERNFS_DIR) {  in cgroup_get_from_path()
5778 			cgrp = kn->priv;  in cgroup_get_from_path()
5783 		kernfs_put(kn);  in cgroup_get_from_path()