On 9/4/18 9:33 PM, Ming Lei wrote: > It is pointed that bio_rewind_iter() is one very bad API[1]: > > 1) bio size may not be restored after rewinding > > 2) it causes some bogus change, such as 5151842b9d8732 (block: reset > bi_iter.bi_done after splitting bio) > > 3) rewinding really makes things complicated wrt. bio splitting > > 4) unnecessary updating of .bi_done in fast path > > [1] https://marc.info/?t=153549924200005&r=1&w=2 > > So this patch takes Kent's suggestion to restore one bio into its original > state via saving bio iterator(struct bvec_iter) in bio_integrity_prep(), > given now bio_rewind_iter() is only used by bio integrity code. Applied, thanks Ming. -- Jens Axboe
