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Date:   Sat, 21 Jan 2023 05:01:14 -0800
From:   Christoph Hellwig <hch@infradead.org>
To:     David Howells <dhowells@redhat.com>
Cc:     Al Viro <viro@zeniv.linux.org.uk>,
        Christoph Hellwig <hch@infradead.org>,
        Matthew Wilcox <willy@infradead.org>,
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        Logan Gunthorpe <logang@deltatee.com>,
        linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH v7 1/8] iov_iter: Define flags to qualify page extraction.
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 <20230120175556.3556978-2-dhowells@redhat.com>
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On Fri, Jan 20, 2023 at 05:55:49PM +0000, David Howells wrote:
> For now only a flag to allow peer-to-peer DMA is allowed; but in future,
> additional flags will be provided to indicate the I/O direction.

Al still doesn't seem to be sold on the latter part, so maybe just
drop this sentence for now.