On Wed, Oct 14, 2020 at 04:03:46AM +0100, Matthew Wilcox (Oracle) wrote: > bio_for_each_segment_all() iterates once per regular sized page. > Use bio_for_each_bvec_all() to iterate once per bvec and handle > merged THPs ourselves, instead of teaching the block layer about THPs. > > Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> This seems to conflict with your synchronous readpage series..