l2arc_vdev_get
static l2arc_dev_t *l2arc_vdev_get(vdev_t *vd);
return (l2arc_vdev_get(vd) != NULL);
dev = l2arc_vdev_get(vd);
remdev = l2arc_vdev_get(vd);
l2arc_vdev_get(spa->spa_l2cache.sav_vdevs[i]);