zfs_get_pool_handle
zph = zfs_get_pool_handle(zhp);
if (zpool_get_prop_int(zfs_get_pool_handle(zhp), ZPOOL_PROP_READONLY,
extern zpool_handle_t *zfs_get_pool_handle(const zfs_handle_t *);
if (!flags->dryrun && !zpool_get_prop_int(zfs_get_pool_handle(zhp),