On Tue, Aug 08, 2017 at 04:45:20PM +0800, Ming Lei wrote: > It is enough to check and compute bio->bi_seg_front_size just > after the 1st segment is found, but current code checks that > for each bvec, which is inefficient. > > This patch follows the way in __blk_recalc_rq_segments() > for computing bio->bi_seg_front_size, and it is more efficient > and code becomes more readable too. As far as I can tell this doesn't depend on anything else in the series and could be sent standalone?