static void mirror_read_complete(void *opaque, int ret) { MirrorOp *op = opaque; MirrorBlockJob *s = op->s; if (ret < 0) { BlockDriverState *source = s->common.bs; BlockErrorAction action; bdrv_set_dirty(source, op->sector_num, op->nb_sectors); action = mirror_error_action(s, true, -ret); if (action == BLOCK_ERROR_ACTION_REPORT && s->ret >= 0) { s->ret = ret; } mirror_iteration_done(op, ret); return; } bdrv_aio_writev(s->target, op->sector_num, &op->qiov, op->nb_sectors, mirror_write_complete, op); }