klist_init(&cont->containers);
klist_init(&cont->containers,internal_container_klist_get, internal_container_klist_put);
attribute_container_register(struct attribute_container *cont){	INIT_LIST_HEAD(&cont->node);	klist_init(&cont->containers);			down(&attribute_container_mutex);	list_add_tail(&cont->node, &attribute_container_list);	up(&attribute_container_mutex);	return 0;}