On 8/3/22 02:47, Pankaj Raghav wrote: > - sector &= ~(ns->zsze - 1); > + /* > + * Round down the sector value to the nearest zone start > + */ > + div64_u64_rem(sector, ns->zsze, &remainder); > + sector -= remainder; Could bdev_offset_from_zone_start() be used here? Thanks, Bart.