On Wed, Jul 16, 2025 at 08:16:34PM +0800, Coly Li wrote: > > > > 2025年7月16日 20:14，Christoph Hellwig <hch@xxxxxx> 写道： > > > > On Wed, Jul 16, 2025 at 08:10:33PM +0800, Coly Li wrote: > >> Just like hanlding discard requests, handling raid5 read/write bios should > >> try to split the large bio into opt_io_size aligned both *offset* and > >> *length*. If I understand correctly, bio_split_to_limits() doesn't handle > >> offset alignment for read5 read/write bios. > > > > Well, if you want offset alignment, set chunk_sectors. > > > > Do you mean setting max_hw_sectors as chunk_sectors? Setting both to the desired value (full stipe width).
