134 	ns->parent = parent_ns;  in create_user_ns()
198 	struct user_namespace *parent, *ns =  in free_user_ns()  local
203 		parent = ns->parent;  in free_user_ns()
221 		ns = parent;  in free_user_ns()
222 	} while (refcount_dec_and_test(&parent->ns.count));  in free_user_ns()
607 	if ((lower_ns == ns) && lower_ns->parent)  in uid_m_show()
608 		lower_ns = lower_ns->parent;  in uid_m_show()
628 	if ((lower_ns == ns) && lower_ns->parent)  in gid_m_show()
629 		lower_ns = lower_ns->parent;  in gid_m_show()
649 	if ((lower_ns == ns) && lower_ns->parent)  in projid_m_show()
650 		lower_ns = lower_ns->parent;  in projid_m_show()
913 		if (!file_ns_capable(file, map_ns->parent, CAP_SETFCAP))  in verify_root_map()
1115 	if (!ns->parent)  in proc_uid_map_write()
1118 	if ((seq_ns != ns) && (seq_ns != ns->parent))  in proc_uid_map_write()
1122 			 &ns->uid_map, &ns->parent->uid_map);  in proc_uid_map_write()
1132 	if (!ns->parent)  in proc_gid_map_write()
1135 	if ((seq_ns != ns) && (seq_ns != ns->parent))  in proc_gid_map_write()
1139 			 &ns->gid_map, &ns->parent->gid_map);  in proc_gid_map_write()
1149 	if (!ns->parent)  in proc_projid_map_write()
1152 	if ((seq_ns != ns) && (seq_ns != ns->parent))  in proc_projid_map_write()
1157 			 &ns->projid_map, &ns->parent->projid_map);  in proc_projid_map_write()
1176 			kuid_t uid = make_kuid(ns->parent, id);  in new_idmap_permitted()
1180 			kgid_t gid = make_kgid(ns->parent, id);  in new_idmap_permitted()
1195 	if (ns_capable(ns->parent, cap_setid) &&  in new_idmap_permitted()
1196 	    file_ns_capable(file, ns->parent, cap_setid))  in new_idmap_permitted()
1304 	for (ns = child; ns->level > ancestor->level; ns = ns->parent)  in in_userns()
1382 		p = p->parent;  in ns_get_owner()
1390 	return to_user_ns(ns)->parent;  in userns_owner()