CPUHP_BIO_DEAD
cpuhp_state_add_instance_nocalls(CPUHP_BIO_DEAD, &bs->cpuhp_dead);
cpuhp_setup_state_multi(CPUHP_BIO_DEAD, "block/bio:dead", NULL,
cpuhp_state_remove_instance_nocalls(CPUHP_BIO_DEAD, &bs->cpuhp_dead);