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Date:   Thu, 1 Aug 2019 10:20:04 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     Jerome Glisse <jglisse@redhat.com>
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        Christoph Hellwig <hch@infradead.org>, john.hubbard@gmail.com,
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Subject: Re: [PATCH 03/12] block: bio_release_pages: use flags arg instead
 of bool
Message-ID: <20190801082004.GA17348@lst.de>
References: <20190724042518.14363-1-jhubbard@nvidia.com> <20190724042518.14363-4-jhubbard@nvidia.com> <20190724053053.GA18330@infradead.org> <20190729205721.GB3760@redhat.com> <20190730102557.GA1700@lst.de> <20190730155702.GB10366@redhat.com>
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On Tue, Jul 30, 2019 at 11:57:02AM -0400, Jerome Glisse wrote:
> Other user can also add page that are not coming from GUP but need to
> have a reference see __blkdev_direct_IO()

Except for the zero page case I mentioned in my last mail explicitly,
and the KVEC/PIPE type iov vecs from the original mail what other
pages do you see to get added?