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

On Thu, Aug 10, 2017 at 04:28:05AM -0700, Christoph Hellwig wrote:

quoted

+ * 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.

As mentioned in comment on patch 8, bio_alloc_pages() should be move
to bcache.

-- 
Ming