675 static struct cgroup *kn_priv(struct kernfs_node *kn)  in kn_priv()  argument
683 	parent = rcu_dereference_check(kn->__parent,  in kn_priv()
684 				       kernfs_root_flags(kn) & KERNFS_ROOT_INVARIANT_PARENT);  in kn_priv()
690 	struct cgroup *cgrp = kn_priv(of->kn);  in of_css()
1681 void cgroup_kn_unlock(struct kernfs_node *kn)  in cgroup_kn_unlock()  argument
1685 	if (kernfs_type(kn) == KERNFS_DIR)  in cgroup_kn_unlock()
1686 		cgrp = kn->priv;  in cgroup_kn_unlock()
1688 		cgrp = kn_priv(kn);  in cgroup_kn_unlock()
1692 	kernfs_unbreak_active_protection(kn);  in cgroup_kn_unlock()
1713 struct cgroup *cgroup_kn_lock_live(struct kernfs_node *kn, bool drain_offline)  in cgroup_kn_lock_live()  argument
1717 	if (kernfs_type(kn) == KERNFS_DIR)  in cgroup_kn_lock_live()
1718 		cgrp = kn->priv;  in cgroup_kn_lock_live()
1720 		cgrp = kn_priv(kn);  in cgroup_kn_lock_live()
1730 	kernfs_break_active_protection(kn);  in cgroup_kn_lock_live()
1740 	cgroup_kn_unlock(kn);  in cgroup_kn_lock_live()
1755 		cfile->kn = NULL;  in cgroup_rm_file()
1761 	kernfs_remove_by_name(cgrp->kn, cgroup_file_name(cgrp, cft, name));  in cgroup_rm_file()
1957 	kernfs_activate(dcgrp->kn);  in rebind_subsystems()
1975 	len = kernfs_path_from_node(kf_node, ns_cgroup->kn, buf, PATH_MAX);  in cgroup_show_path()
2198 	root_cgrp->kn = kernfs_root_to_node(root->kf_root);  in cgroup_setup_root()
2289 		nsdentry = kernfs_node_dentry(cgrp->kn, sb);  in cgroup_do_get_tree()
2489 	return kernfs_path_from_node(cgrp->kn, root->kn, buf, buflen);  in cgroup_path_ns_locked()
3581 	cgrp = cgroup_kn_lock_live(of->kn, true);  in cgroup_subtree_control_write()
3632 	kernfs_activate(cgrp->kn);  in cgroup_subtree_control_write()
3634 	cgroup_kn_unlock(of->kn);  in cgroup_subtree_control_write()
3721 	cgrp = cgroup_kn_lock_live(of->kn, true);  in cgroup_type_write()
3728 	cgroup_kn_unlock(of->kn);  in cgroup_type_write()
3764 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_max_descendants_write()
3770 	cgroup_kn_unlock(of->kn);  in cgroup_max_descendants_write()
3807 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_max_depth_write()
3813 	cgroup_kn_unlock(of->kn);  in cgroup_max_depth_write()
4004 	cgrp = cgroup_kn_lock_live(of->kn, false);  in pressure_write()
4009 	cgroup_kn_unlock(of->kn);  in pressure_write()
4094 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_pressure_write()
4111 	cgroup_kn_unlock(of->kn);  in cgroup_pressure_write()
4170 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_freeze_write()
4176 	cgroup_kn_unlock(of->kn);  in cgroup_freeze_write()
4232 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_kill_write()
4246 	cgroup_kn_unlock(of->kn);  in cgroup_kill_write()
4292 	struct cgroup *cgrp = kn_priv(of->kn);  in cgroup_file_write()
4415 	struct kernfs_node *kn;  in cgroup_add_file()  local
4421 	kn = __kernfs_create_file(cgrp->kn, cgroup_file_name(cgrp, cft, name),  in cgroup_add_file()
4426 	if (IS_ERR(kn))  in cgroup_add_file()
4427 		return PTR_ERR(kn);  in cgroup_add_file()
4435 		cfile->kn = kn;  in cgroup_add_file()
4512 		kernfs_activate(root->kn);  in cgroup_apply_cftypes()
4694 	if (cfile->kn) {  in cgroup_file_notify()
4701 			kernfs_notify(cfile->kn);  in cgroup_file_notify()
4716 	struct kernfs_node *kn;  in cgroup_file_show()  local
4719 	kn = cfile->kn;  in cgroup_file_show()
4720 	kernfs_get(kn);  in cgroup_file_show()
4723 	if (kn)  in cgroup_file_show()
4724 		kernfs_show(kn, show);  in cgroup_file_show()
4726 	kernfs_put(kn);  in cgroup_file_show()
5300 	inode = kernfs_get_inode(sb, cgrp->procs_file.kn);  in cgroup_may_write()
5370 	dst_cgrp = cgroup_kn_lock_live(of->kn, false);  in __cgroup_procs_write()
5401 	cgroup_kn_unlock(of->kn);  in __cgroup_procs_write()
5611 			kernfs_put(cgrp->kn);  in css_free_rwork_fn()
5681 		if (cgrp->kn)  in css_release_work_fn()
5682 			RCU_INIT_POINTER(*(void __rcu __force **)&cgrp->kn->priv,  in css_release_work_fn()
5845 	struct kernfs_node *kn;  in cgroup_create()  local
5859 	kn = kernfs_create_dir_ns(parent->kn, name, mode,  in cgroup_create()
5862 	if (IS_ERR(kn)) {  in cgroup_create()
5863 		ret = PTR_ERR(kn);  in cgroup_create()
5866 	cgrp->kn = kn;  in cgroup_create()
5958 	kernfs_remove(cgrp->kn);  in cgroup_create()
6017 	kernfs_get(cgrp->kn);  in cgroup_mkdir()
6030 	kernfs_activate(cgrp->kn);  in cgroup_mkdir()
6193 	kernfs_remove(cgrp->kn);  in cgroup_destroy_locked()
6223 int cgroup_rmdir(struct kernfs_node *kn)  in cgroup_rmdir()  argument
6228 	cgrp = cgroup_kn_lock_live(kn, false);  in cgroup_rmdir()
6236 	cgroup_kn_unlock(kn);  in cgroup_rmdir()
6474 	struct kernfs_node *kn;  in cgroup_path_from_kernfs_id()  local
6476 	kn = kernfs_find_and_get_node_by_id(cgrp_dfl_root.kf_root, id);  in cgroup_path_from_kernfs_id()
6477 	if (!kn)  in cgroup_path_from_kernfs_id()
6479 	kernfs_path(kn, buf, buflen);  in cgroup_path_from_kernfs_id()
6480 	kernfs_put(kn);  in cgroup_path_from_kernfs_id()
6491 	struct kernfs_node *kn;  in __cgroup_get_from_id()  local
6494 	kn = kernfs_find_and_get_node_by_id(cgrp_dfl_root.kf_root, id);  in __cgroup_get_from_id()
6495 	if (!kn)  in __cgroup_get_from_id()
6498 	if (kernfs_type(kn) != KERNFS_DIR) {  in __cgroup_get_from_id()
6499 		kernfs_put(kn);  in __cgroup_get_from_id()
6505 	cgrp = rcu_dereference(*(void __rcu __force **)&kn->priv);  in __cgroup_get_from_id()
6510 	kernfs_put(kn);  in __cgroup_get_from_id()
7154 	struct kernfs_node *kn = kernfs_node_from_dentry(dentry);  in css_tryget_online_from_dir()  local
7161 	    !kn || kernfs_type(kn) != KERNFS_DIR)  in css_tryget_online_from_dir()
7171 	cgrp = rcu_dereference(*(void __rcu __force **)&kn->priv);  in css_tryget_online_from_dir()
7207 	struct kernfs_node *kn;  in cgroup_get_from_path()  local
7212 	kn = kernfs_walk_and_get(root_cgrp->kn, path);  in cgroup_get_from_path()
7213 	if (!kn)  in cgroup_get_from_path()
7216 	if (kernfs_type(kn) != KERNFS_DIR) {  in cgroup_get_from_path()
7223 	cgrp = rcu_dereference(*(void __rcu __force **)&kn->priv);  in cgroup_get_from_path()
7230 	kernfs_put(kn);  in cgroup_get_from_path()