> > > 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?