spa_spare_exists
if (spa_spare_exists(guid, &pool, NULL) &&
if (spa_spare_exists(sav->sav_vdevs[i]->vdev_guid, &pool,
extern boolean_t spa_spare_exists(uint64_t guid, uint64_t *pool, int *refcnt);
spa_spare_exists(vd->vdev_guid, NULL, NULL)))
!spa_spare_exists(device_guid, NULL, NULL) &&
if (spa_spare_exists(device_guid, &spare_pool, NULL) ||