[PATCH v3 03/10] block: handle split correctly for user meta bounce buffer

[Christoph Hellwig]

On Wed, Aug 28, 2024 at 04:48:06PM +0530, Anuj Gupta wrote:
> I can add it [*], to iterate over the entire bvec array. But the original
> bio_iter still needs to be stored during submission, to calculate the
> number of bytes in the original integrity/metadata iter (as it could have
> gotten split, and I don't have original integrity iter stored anywhere).
> Do you have a different opinion?

Just like for the bio data, the original submitter should never use the
iter, but the _all iter.