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Date:   Sat, 21 Jan 2023 05:05:24 -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>,
        Jens Axboe <axboe@kernel.dk>, Jan Kara <jack@suse.cz>,
        Jeff Layton <jlayton@kernel.org>,
        Logan Gunthorpe <logang@deltatee.com>,
        linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org,
        linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH v7 5/8] block: Add BIO_PAGE_PINNED
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 <20230120175556.3556978-6-dhowells@redhat.com>
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On Fri, Jan 20, 2023 at 05:55:53PM +0000, David Howells wrote:
> BIO_PAGE_PINNED to indicate that the pages in a bio were pinned (FOLL_PIN)
> and that the pin will need removing.

Just adding the flag without the infrastructure and users is a bit
silly.  See the link to my branch to see what I think is better split.