On Sat, Jan 12, 2019 at 01:03:05PM -0600, Shiraz Saleem wrote: > Well I was trying convert the RDMA drivers to use your new iterator variant > and saw the need for it in locations where we need virtual address of the pages > contained in the SGEs. As far as i can tell that pg_arr[i] value is only ever used for the case where we do an explicit dma coherent allocation, so you should not have to fill it out at all.