[PATCH V4 1/9] block: allow bvec for zone append get pages

[Christoph Hellwig]

On Tue, Dec 01, 2020 at 10:22:19PM -0800, Chaitanya Kulkarni wrote:
> Remove the bvec check in the bio_iov_iter_get_pages() for
> REQ_OP_ZONE_APPEND so that we can reuse the code and build iter from
> bvec.

We should do the same optimization for bvec pages that the normal path
does.  That being said using bio_iov_iter_get_pages in nvmet does not
	make any sense to me whatsover.