Re: [PATCH RFC 2/7] md/raid0: convert raid0_handle_discard() to use bio_submit_split()

[Christoph Hellwig]

On Mon, Aug 25, 2025 at 05:36:55PM +0800, Yu Kuai wrote:
> +		bio = bio_submit_split(bio,
> +				zone->zone_end - bio->bi_iter.bi_sector,
> +				&mddev->bio_set);

Do you know why raid0 and linear use mddev->bio_set for splitting
instead of their own split bio_sets like raid1/10/5?  Is this safe?

Otherwise this looks nice.