static bool bdrv_requests_pending_all(void)
{
    BlockDriverState *bs;
    QTAILQ_FOREACH(bs, &bdrv_states, device_list) {
        if (bdrv_requests_pending(bs)) {
            return true;
        }
    }
    return false;
}

static bool bdrv_requests_pending_all(void)
{
    BlockDriverState *bs;
    QTAILQ_FOREACH(bs, &bdrv_states, device_list) {
        if (bdrv_requests_pending(bs)) {
            return true;
        }
    }
    return false;
}
