ZPOOL_CONFIG_IS_SPARE
(void) nvlist_lookup_value(nv, ZPOOL_CONFIG_IS_SPARE,
ZPOOL_CONFIG_IS_SPARE, &isspare) == 0 && isspare)
(void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_SPARE,
nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_IS_SPARE, &val) == 0 &&
ZPOOL_CONFIG_IS_SPARE, 1ULL);
if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_SPARE,
fnvlist_add_uint64(nv, ZPOOL_CONFIG_IS_SPARE, 1);