[PATCH for-next v9 6/7] block: introduce helper to map bvec iterator

[Christoph Hellwig]

On Mon, Sep 26, 2022 at 01:53:03AM +0530, Kanchan Joshi wrote:
> Add blk_rq_map_user_bvec which maps the pages from bvec iterator into a
> bio, and places the bio into the request. This helper will be used by
> nvme for uring-passthrough path with pre-mapped buffers.

I still don't think this should be separate per the ongoing discussion.

It would also be nice if we had a chance to finish the discussion
without seeing a reposted series before we've made much progress on
it.