On Mon, Mar 27, 2023 at 01:44:02PM -0400, Kent Overstreet wrote: > + bio_for_each_folio_all(fv, bio, iter) > + iomap_finish_folio_read(fv.fv_folio, fv.fv_offset, fv.fv_len, error); Please avoid the overly long lines. Also if we pass all arguments of the folio_vec we might as ell just pass that folio_vec anyway. > - BUG_ON(iter->idx > bio->bi_vcnt || (iter->idx == bio->bi_vcnt && iter->done)); > + BUG_ON(iter->idx > bio->bi_vcnt || > + (iter->idx == bio->bi_vcnt && iter->done)); Seems like this should be folded into the previous patch. Also I generally prefer to avoid top-level || in asserts and just do multiple asserts, as that shows which condition triggered.