Re: [PATCH v21 0/6] block: Use page pinning

[Christoph Hellwig]

On Mon, May 22, 2023 at 09:57:38PM +0100, David Howells wrote:
> Hi Jens, Al, Christoph,
> 
> This patchset rolls page-pinning out to the bio struct and the block layer,
> using iov_iter_extract_pages() to get pages and noting with BIO_PAGE_PINNED
> if the data pages attached to a bio are pinned.  If the data pages come
> from a non-user-backed iterator, then the pages are left unpinned and
> unref'd, relying on whoever set up the I/O to do the retaining.

I think I already review the patches, so nothing new here.  But can
you please also take care of the legacy direct I/O code?  I'd really
hate to leave yet another unfinished transition around.