On Sat, May 08, 2021 at 11:48:15AM +0800, Guoqing Jiang wrote: > It looks like stack overflow happened for split bio, to fix this, > let's keep split bio untouched in md_submit_bio. > > As a side effect, we need to export bio_chain_endio. Err, no. The right answer is to not change ->bi_end_io of bios that you do not own instead of using a horrible hack to skip accounting for bios that have no more or less reason to be accounted than others bios.
