On Tue, Aug 26, 2025 at 09:15:34AM +0800, Yu Kuai wrote: > > > + raid_bio->bi_opf &= ~REQ_NOMERGE; > > > > It almost feels as if md wants a little helper that wraps > > bio_submit_split and also clears REQ_NOMERGE? > > > > Yes. > > And with the respect bio_submit_split() set this flag and then we clear > it, will it make more sense to set this flag after bio_submit_split() > from block layer? Yes.
