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From:   Kent Overstreet <kent.overstreet@linux.dev>
To:     David Howells <dhowells@redhat.com>
Cc:     Jens Axboe <axboe@kernel.dk>, Al Viro <viro@zeniv.linux.org.uk>,
        Christoph Hellwig <hch@infradead.org>,
        Matthew Wilcox <willy@infradead.org>, Jan Kara <jack@suse.cz>,
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        David Hildenbrand <david@redhat.com>,
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        linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        Christoph Hellwig <hch@lst.de>,
        John Hubbard <jhubbard@nvidia.com>
Subject: Re: [PATCH v20 29/32] block: Replace BIO_NO_PAGE_REF with
 BIO_PAGE_REFFED with inverted logic
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 <20230519074047.1739879-30-dhowells@redhat.com>
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On Fri, May 19, 2023 at 08:40:44AM +0100, David Howells wrote:
> From: Christoph Hellwig <hch@lst.de>
> 
> Replace BIO_NO_PAGE_REF with a BIO_PAGE_REFFED flag that has the inverted
> meaning is only set when a page reference has been acquired that needs to
> be released by bio_release_pages().

What was the motivation for this patch?