Re: [PATCH] md: don't account io stat for split bio

On Mon, May 10, 2021 at 11:59:11PM -0700, Song Liu wrote:

quoted

Yes.  Also if the original bi_end_io is restore before completing the
bio you can still override it.

Do you mean we can somehow avoid cloning the bio?

If you restore the original bi_end_io you might be able to avoid it.
That being said I suspect that always cloning will be more robust.