Re: [PATCH v3 09/49] block: comment on bio_iov_iter_get_pages()

[Christoph Hellwig]

> + * The hacking way of using bvec table as page pointer array is safe
> + * even after multipage bvec is introduced because that space can be
> + * thought as unused by bio_add_page().

I'm not sure what value this comment adds.

Note that once we have multi-page biovecs this could should change
to take advantage of multipage biovecs, so adding a comment before
that doesn't seem too helpful.