632 	struct cgroup *cgrp = of->kn->parent->priv;  in of_css()
1284 	struct cgroup *root_cgrp = kf_root->kn->priv;  in cgroup_root_from_kf()
1563 void cgroup_kn_unlock(struct kernfs_node *kn)  in cgroup_kn_unlock()  argument
1567 	if (kernfs_type(kn) == KERNFS_DIR)  in cgroup_kn_unlock()
1568 		cgrp = kn->priv;  in cgroup_kn_unlock()
1570 		cgrp = kn->parent->priv;  in cgroup_kn_unlock()
1574 	kernfs_unbreak_active_protection(kn);  in cgroup_kn_unlock()
1595 struct cgroup *cgroup_kn_lock_live(struct kernfs_node *kn, bool drain_offline)  in cgroup_kn_lock_live()  argument
1599 	if (kernfs_type(kn) == KERNFS_DIR)  in cgroup_kn_lock_live()
1600 		cgrp = kn->priv;  in cgroup_kn_lock_live()
1602 		cgrp = kn->parent->priv;  in cgroup_kn_lock_live()
1612 	kernfs_break_active_protection(kn);  in cgroup_kn_lock_live()
1622 	cgroup_kn_unlock(kn);  in cgroup_kn_lock_live()
1637 		cfile->kn = NULL;  in cgroup_rm_file()
1643 	kernfs_remove_by_name(cgrp->kn, cgroup_file_name(cgrp, cft, name));  in cgroup_rm_file()
1685 	if ((css->flags & CSS_VISIBLE) || !cgrp->kn)  in css_populate_dir()
1785 	kernfs_activate(dcgrp->kn);  in rebind_subsystems()
1803 	len = kernfs_path_from_node(kf_node, ns_cgroup->kn, buf, PATH_MAX);  in cgroup_show_path()
2037 	root_cgrp->kn = root->kf_root->kn;  in cgroup_setup_root()
2075 	kernfs_activate(root_cgrp->kn);  in cgroup_setup_root()
2120 		nsdentry = kernfs_node_dentry(cgrp->kn, sb);  in cgroup_do_get_tree()
2295 	return kernfs_path_from_node(cgrp->kn, root->kn, buf, buflen);  in cgroup_path_ns_locked()
3312 	cgrp = cgroup_kn_lock_live(of->kn, true);  in cgroup_subtree_control_write()
3363 	kernfs_activate(cgrp->kn);  in cgroup_subtree_control_write()
3365 	cgroup_kn_unlock(of->kn);  in cgroup_subtree_control_write()
3451 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_type_write()
3458 	cgroup_kn_unlock(of->kn);  in cgroup_type_write()
3494 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_max_descendants_write()
3500 	cgroup_kn_unlock(of->kn);  in cgroup_max_descendants_write()
3537 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_max_depth_write()
3543 	cgroup_kn_unlock(of->kn);  in cgroup_max_depth_write()
3630 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_pressure_write()
3635 	cgroup_kn_unlock(of->kn);  in cgroup_pressure_write()
3706 	cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_freeze_write()
3712 	cgroup_kn_unlock(of->kn);  in cgroup_freeze_write()
3719 	struct cftype *cft = of->kn->priv;  in cgroup_file_open()
3728 	struct cftype *cft = of->kn->priv;  in cgroup_file_release()
3738 	struct cgroup *cgrp = of->kn->parent->priv;  in cgroup_file_write()
3739 	struct cftype *cft = of->kn->priv;  in cgroup_file_write()
3786 	struct cftype *cft = of->kn->priv;  in cgroup_file_poll()
3849 static int cgroup_kn_set_ugid(struct kernfs_node *kn)  in cgroup_kn_set_ugid()  argument
3859 	return kernfs_setattr(kn, &iattr);  in cgroup_kn_set_ugid()
3872 	struct kernfs_node *kn;  in cgroup_add_file()  local
3879 	kn = __kernfs_create_file(cgrp->kn, cgroup_file_name(cgrp, cft, name),  in cgroup_add_file()
3884 	if (IS_ERR(kn))  in cgroup_add_file()
3885 		return PTR_ERR(kn);  in cgroup_add_file()
3887 	ret = cgroup_kn_set_ugid(kn);  in cgroup_add_file()
3889 		kernfs_remove(kn);  in cgroup_add_file()
3899 		cfile->kn = kn;  in cgroup_add_file()
3976 		kernfs_activate(root->kn);  in cgroup_apply_cftypes()
4148 	if (cfile->kn) {  in cgroup_file_notify()
4155 			kernfs_notify(cfile->kn);  in cgroup_file_notify()
4731 	inode = kernfs_get_inode(sb, com_cgrp->procs_file.kn);  in cgroup_procs_write_permission()
4759 	dst_cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_procs_write()
4783 	cgroup_kn_unlock(of->kn);  in cgroup_procs_write()
4802 	dst_cgrp = cgroup_kn_lock_live(of->kn, false);  in cgroup_threads_write()
4832 	cgroup_kn_unlock(of->kn);  in cgroup_threads_write()
4987 			kernfs_put(cgrp->kn);  in css_free_rwork_fn()
5050 		if (cgrp->kn)  in css_release_work_fn()
5051 			RCU_INIT_POINTER(*(void __rcu __force **)&cgrp->kn->priv,  in css_release_work_fn()
5358 	struct kernfs_node *kn;  in cgroup_mkdir()  local
5381 	kn = kernfs_create_dir(parent->kn, name, mode, cgrp);  in cgroup_mkdir()
5382 	if (IS_ERR(kn)) {  in cgroup_mkdir()
5383 		ret = PTR_ERR(kn);  in cgroup_mkdir()
5386 	cgrp->kn = kn;  in cgroup_mkdir()
5392 	kernfs_get(kn);  in cgroup_mkdir()
5394 	ret = cgroup_kn_set_ugid(kn);  in cgroup_mkdir()
5409 	kernfs_activate(kn);  in cgroup_mkdir()
5566 	kernfs_remove(cgrp->kn);  in cgroup_destroy_locked()
5594 int cgroup_rmdir(struct kernfs_node *kn)  in cgroup_rmdir()  argument
5599 	cgrp = cgroup_kn_lock_live(kn, false);  in cgroup_rmdir()
5607 	cgroup_kn_unlock(kn);  in cgroup_rmdir()
5842 	struct kernfs_node *kn;  in cgroup_path_from_kernfs_id()  local
5844 	kn = kernfs_get_node_by_id(cgrp_dfl_root.kf_root, id);  in cgroup_path_from_kernfs_id()
5845 	if (!kn)  in cgroup_path_from_kernfs_id()
5847 	kernfs_path(kn, buf, buflen);  in cgroup_path_from_kernfs_id()
5848 	kernfs_put(kn);  in cgroup_path_from_kernfs_id()
6189 	struct kernfs_node *kn = kernfs_node_from_dentry(dentry);  in css_tryget_online_from_dir()  local
6196 	    !kn || kernfs_type(kn) != KERNFS_DIR)  in css_tryget_online_from_dir()
6206 	cgrp = rcu_dereference(*(void __rcu __force **)&kn->priv);  in css_tryget_online_from_dir()
6242 	struct kernfs_node *kn;  in cgroup_get_from_path()  local
6247 	kn = kernfs_walk_and_get(cgrp_dfl_root.cgrp.kn, path);  in cgroup_get_from_path()
6248 	if (kn) {  in cgroup_get_from_path()
6249 		if (kernfs_type(kn) == KERNFS_DIR) {  in cgroup_get_from_path()
6250 			cgrp = kn->priv;  in cgroup_get_from_path()
6255 		kernfs_put(kn);  in cgroup_get_from_path()