Re: [PATCH 1/3] iov_iter: Fix iov_iter_extract_pages()

[Christoph Hellwig]

On Fri, Sep 08, 2023 at 05:03:20PM +0100, David Howells wrote:
> iov_iter_extract_pages() doesn't correctly handle skipping over initial
> zero-length entries in ITER_KVEC and ITER_BVEC-type iterators.

Maybe put a little of that into the subject.  Fix $foo only makes sense
when it is completely broken and not for a corner case.

i.e.

iov_iter: skip over leading empty vecs in iov_iter_extract_pages

The change itself looks good:

Reviewed-by: Christoph Hellwig <hch@xxxxxx>