229 static struct cgroup *cgroup_parent(struct cgroup *cgrp)  in cgroup_parent()  function
284 	while (cgroup_parent(cgrp) &&  in cgroup_e_css()
285 	       !(cgroup_parent(cgrp)->child_subsys_mask & (1 << ss->id)))  in cgroup_e_css()
286 		cgrp = cgroup_parent(cgrp);  in cgroup_e_css()
314 		cgrp = cgroup_parent(cgrp);  in cgroup_get_e_css()
364 		cgrp = cgroup_parent(cgrp);  in cgroup_is_descendant()
498 		cgrp = cgroup_parent(cgrp);  in cgroup_update_populated()
1074 	struct cgroup *parent = cgroup_parent(cgrp);  in cgroup_calc_child_subsys_mask()
2169 	if (dst_cgrp && cgroup_on_dfl(dst_cgrp) && cgroup_parent(dst_cgrp) &&  in cgroup_migrate_prepare_dst()
2577 	cgroup_print_ss_mask(seq, cgroup_parent(cgrp)->subtree_control);  in cgroup_controllers_show()
2739 			    (cgroup_parent(cgrp) &&  in cgroup_subtree_control_write()
2740 			     !(cgroup_parent(cgrp)->subtree_control & (1 << ssid)))) {  in cgroup_subtree_control_write()
2769 	if (enable && cgroup_parent(cgrp) && !list_empty(&cgrp->cset_links)) {  in cgroup_subtree_control_write()
3119 		if ((cft->flags & CFTYPE_NOT_ON_ROOT) && !cgroup_parent(cgrp))  in cgroup_addrm_files()
3121 		if ((cft->flags & CFTYPE_ONLY_ON_ROOT) && cgroup_parent(cgrp))  in cgroup_addrm_files()
4395 		if (cgroup_parent(cgrp)) {  in css_free_work_fn()
4402 			cgroup_put(cgroup_parent(cgrp));  in css_free_work_fn()
4486 	if (cgroup_parent(cgrp)) {  in init_and_link_css()
4487 		css->parent = cgroup_css(cgroup_parent(cgrp), ss);  in init_and_link_css()
4547 	struct cgroup *parent = cgroup_parent(cgrp);  in create_css()
4584 	    cgroup_parent(parent)) {  in create_css()
4675 	list_add_tail_rcu(&cgrp->self.sibling, &cgroup_parent(cgrp)->self.children);  in cgroup_mkdir()
4876 	check_for_release(cgroup_parent(cgrp));  in cgroup_destroy_locked()