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Date:   Mon, 23 Jan 2023 06:48:23 -0800
From:   Christoph Hellwig <hch@infradead.org>
To:     David Hildenbrand <david@redhat.com>
Cc:     David Howells <dhowells@redhat.com>,
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        linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
        John Hubbard <jhubbard@nvidia.com>, linux-mm@kvack.org
Subject: Re: [PATCH v7 2/8] iov_iter: Add a function to extract a page list
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On Mon, Jan 23, 2023 at 03:20:41PM +0100, David Hildenbrand wrote:
> > The block bio code then only needs a single bit of state: pinned or not
> > pinned.
> 
> Unfortunately, I'll have to let BIO experts comment on that :) I only know
> the MM side of things here.

It can work for bios.