Sorry, forgot to mention - if we want to explore combining the buffer address and truesize into a single void *, we could also exploit the fact that our size ranges from aligned GOOD_PACKET_LEN to PAGE_SIZE, and potentially encode fewer values for truesize (and require a smaller alignment than 256). The prior e-mails discussion of 256 byte alignment with 256 values is just one potential design point. Best, Mike _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization