450 	struct cgroup *cgrp = of->kn->parent->priv;  in of_css()
1082 	struct cgroup *root_cgrp = kf_root->kn->priv;  in cgroup_root_from_kf()
1345 static void cgroup_kn_unlock(struct kernfs_node *kn)  in cgroup_kn_unlock()  argument
1349 	if (kernfs_type(kn) == KERNFS_DIR)  in cgroup_kn_unlock()
1350 		cgrp = kn->priv;  in cgroup_kn_unlock()
1352 		cgrp = kn->parent->priv;  in cgroup_kn_unlock()
1356 	kernfs_unbreak_active_protection(kn);  in cgroup_kn_unlock()
1375 static struct cgroup *cgroup_kn_lock_live(struct kernfs_node *kn)  in cgroup_kn_lock_live()  argument
1379 	if (kernfs_type(kn) == KERNFS_DIR)  in cgroup_kn_lock_live()
1380 		cgrp = kn->priv;  in cgroup_kn_lock_live()
1382 		cgrp = kn->parent->priv;  in cgroup_kn_lock_live()
1392 	kernfs_break_active_protection(kn);  in cgroup_kn_lock_live()
1399 	cgroup_kn_unlock(kn);  in cgroup_kn_lock_live()
1414 		cfile->kn = NULL;  in cgroup_rm_file()
1418 	kernfs_remove_by_name(cgrp->kn, cgroup_file_name(cgrp, cft, name));  in cgroup_rm_file()
1575 	kernfs_activate(dcgrp->kn);  in rebind_subsystems()
1954 	root_cgrp->kn = root->kf_root->kn;  in cgroup_setup_root()
1987 	kernfs_activate(root_cgrp->kn);  in cgroup_setup_root()
2704 		inode = kernfs_get_inode(sb, cgrp->procs_file.kn);  in cgroup_procs_write_permission()
2732 	cgrp = cgroup_kn_lock_live(of->kn);  in __cgroup_procs_write()
2778 	cgroup_kn_unlock(of->kn);  in __cgroup_procs_write()
2832 	cgrp = cgroup_kn_lock_live(of->kn);  in cgroup_release_agent_write()
2839 	cgroup_kn_unlock(of->kn);  in cgroup_release_agent_write()
3008 	cgrp = cgroup_kn_lock_live(of->kn);  in cgroup_subtree_control_write()
3087 			cgroup_kn_unlock(of->kn);  in cgroup_subtree_control_write()
3173 	kernfs_activate(cgrp->kn);  in cgroup_subtree_control_write()
3176 	cgroup_kn_unlock(of->kn);  in cgroup_subtree_control_write()
3212 	struct cgroup *cgrp = of->kn->parent->priv;  in cgroup_file_write()
3213 	struct cftype *cft = of->kn->priv;  in cgroup_file_write()
3297 static int cgroup_rename(struct kernfs_node *kn, struct kernfs_node *new_parent,  in cgroup_rename()  argument
3300 	struct cgroup *cgrp = kn->priv;  in cgroup_rename()
3303 	if (kernfs_type(kn) != KERNFS_DIR)  in cgroup_rename()
3305 	if (kn->parent != new_parent)  in cgroup_rename()
3321 	kernfs_break_active_protection(kn);  in cgroup_rename()
3325 	ret = kernfs_rename(kn, new_parent, new_name_str);  in cgroup_rename()
3329 	kernfs_unbreak_active_protection(kn);  in cgroup_rename()
3335 static int cgroup_kn_set_ugid(struct kernfs_node *kn)  in cgroup_kn_set_ugid()  argument
3345 	return kernfs_setattr(kn, &iattr);  in cgroup_kn_set_ugid()
3352 	struct kernfs_node *kn;  in cgroup_add_file()  local
3359 	kn = __kernfs_create_file(cgrp->kn, cgroup_file_name(cgrp, cft, name),  in cgroup_add_file()
3362 	if (IS_ERR(kn))  in cgroup_add_file()
3363 		return PTR_ERR(kn);  in cgroup_add_file()
3365 	ret = cgroup_kn_set_ugid(kn);  in cgroup_add_file()
3367 		kernfs_remove(kn);  in cgroup_add_file()
3375 		cfile->kn = kn;  in cgroup_add_file()
3452 		kernfs_activate(root->kn);  in cgroup_apply_cftypes()
3624 	if (cfile->kn)  in cgroup_file_notify()
3625 		kernfs_notify(cfile->kn);  in cgroup_file_notify()
4391 	struct kernfs_node *kn = kernfs_node_from_dentry(dentry);  in cgroupstats_build()  local
4397 	if (dentry->d_sb->s_type != &cgroup_fs_type || !kn ||  in cgroupstats_build()
4398 	    kernfs_type(kn) != KERNFS_DIR)  in cgroupstats_build()
4409 	cgrp = rcu_dereference(kn->priv);  in cgroupstats_build()
4718 			kernfs_put(cgrp->kn);  in css_free_work_fn()
4769 		RCU_INIT_POINTER(*(void __rcu __force **)&cgrp->kn->priv, NULL);  in css_release_work_fn()
4927 	struct kernfs_node *kn;  in cgroup_mkdir()  local
4973 	kn = kernfs_create_dir(parent->kn, name, mode, cgrp);  in cgroup_mkdir()
4974 	if (IS_ERR(kn)) {  in cgroup_mkdir()
4975 		ret = PTR_ERR(kn);  in cgroup_mkdir()
4978 	cgrp->kn = kn;  in cgroup_mkdir()
4984 	kernfs_get(kn);  in cgroup_mkdir()
4999 	ret = cgroup_kn_set_ugid(kn);  in cgroup_mkdir()
5026 	kernfs_activate(kn);  in cgroup_mkdir()
5187 	kernfs_remove(cgrp->kn);  in cgroup_destroy_locked()
5197 static int cgroup_rmdir(struct kernfs_node *kn)  in cgroup_rmdir()  argument
5202 	cgrp = cgroup_kn_lock_live(kn);  in cgroup_rmdir()
5208 	cgroup_kn_unlock(kn);  in cgroup_rmdir()
5817 	struct kernfs_node *kn = kernfs_node_from_dentry(dentry);  in css_tryget_online_from_dir()  local
5822 	if (dentry->d_sb->s_type != &cgroup_fs_type || !kn ||  in css_tryget_online_from_dir()
5823 	    kernfs_type(kn) != KERNFS_DIR)  in css_tryget_online_from_dir()
5833 	cgrp = rcu_dereference(kn->priv);  in css_tryget_online_from_dir()