On Mon, Nov 25, 2024 at 11:22:51AM +0800, LongPing Wei wrote: > When dm level submit a bio with bi_size > max_sectors_kb of lower device, > blk_mq_submit_bio will split it into several ones with limited bi_size. > It may be a potential unordered issue as it breaks the ZWL design in dm > on 6.6. What is ZWL? And why mention 6.6? And why do you care about ordering? There is no real ordering requirement in the block layer.
