As said before, please don't try to do weird runtime checks based on the scatterlist. What you have works for now, but there are plans to repalce the page + offset tuple in the scatterlist with just a phys_addr_t. And with that your "clever" scheme will break instantly. _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization