On 26.05.23 09:34, Luis Chamberlain wrote: > + u32 index = bio->bi_iter.bi_sector >> PAGE_SECTORS_SHIFT; > + u32 offset = (bio->bi_iter.bi_sector & (PAGE_SECTORS - 1)) << > SECTOR_SHIFT; (PAGE_SECTORS - 1) is SECTOR_MASK, please use this. Thanks, Johannes