vdev_count_verify_zaps
total += vdev_count_verify_zaps(vd->vdev_child[i]);
ASSERT0(vdev_count_verify_zaps(spa->spa_root_vdev));
ASSERT0(vdev_count_verify_zaps(spa->spa_root_vdev));
ASSERT3U(vdev_count_verify_zaps(spa->spa_root_vdev), ==,