zfs_ace_byteswap
void zfs_ace_byteswap(void *, size_t, boolean_t);
zfs_ace_byteswap(buf, size, B_TRUE);
zfs_ace_byteswap(aclstart, lracl->lr_acl_bytes, B_FALSE);
zfs_ace_byteswap(ace, lr->lr_acl_bytes, B_FALSE);