On Mon, 2017-03-20 at 16:43 -0400, Christoph Hellwig wrote:

+	u64 sector =3D blk_rq_pos(rq) >> (ilog2(sdp->sector_size) - 9);
+	u32 nr_sectors =3D blk_rq_sectors(rq) >> (ilog2(sdp->sector_size) - 9);

Although I know this is an issue in the existing code and not something
introduced by you: please consider using logical_to_sectors() instead of
open-coding this function. Otherwise this patch looks fine to me.

Thanks,

Bart.