int nbd_client_session_co_readv(NbdClientSession *client, int64_t sector_num, int nb_sectors, QEMUIOVector *qiov) { int offset = 0; int ret; while (nb_sectors > NBD_MAX_SECTORS) { ret = nbd_co_readv_1(client, sector_num, NBD_MAX_SECTORS, qiov, offset); if (ret < 0) { return ret; } offset += NBD_MAX_SECTORS * 512; sector_num += NBD_MAX_SECTORS; nb_sectors -= NBD_MAX_SECTORS; } return nbd_co_readv_1(client, sector_num, nb_sectors, qiov, offset); }