Il 23/11/2012 10:05, Dietmar Maurer ha scritto:
>>>> My plan was to have something like bs->job->job_type-
>>>> {before,after}_write.
>>>>
>>>> int coroutine_fn (*before_write)(BlockDriverState *bs,
>>>> int64_t sector_num, int nb_sectors, QEMUIOVector *qiov,
>>>> void **cookie);
>>>> int coroutine_fn (*after_write)(BlockDriverState *bs,
>>>> int64_t sector_num, int nb_sectors, QEMUIOVector *qiov,
>>>> void *cookie);
>>>
>>> I don't think that job is the right place. Instead I would put a list
>>> of filters into
>>> BDS:
>>
>> Well, I can also add it to job_type. Just tell me what you prefer, and I will
>> write the patch.
>
> BTW, will such filters work with the new virtio-blk-data-plane?
No, virtio-blk-data-plane is a hack and will be slowly rewritten to
support all fancy features.
Paolo
