linux-kernel - Re: [PATCH v6 10/34] mm, block: Make BIO_PAGE_REFFED/PINNED the same as FOLL

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Message-ID: <Y8ZWPiDqhGDgBT3l@infradead.org>
Date:   Tue, 17 Jan 2023 00:03:10 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     David Howells <dhowells@...hat.com>
Cc:     Al Viro <viro@...iv.linux.org.uk>, Jens Axboe <axboe@...nel.dk>,
        Jan Kara <jack@...e.cz>, Christoph Hellwig <hch@....de>,
        Matthew Wilcox <willy@...radead.org>,
        Logan Gunthorpe <logang@...tatee.com>,
        linux-block@...r.kernel.org, Christoph Hellwig <hch@...radead.org>,
        Jeff Layton <jlayton@...nel.org>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 10/34] mm, block: Make BIO_PAGE_REFFED/PINNED the same
 as FOLL_GET/PIN numerically

On Mon, Jan 16, 2023 at 11:09:13PM +0000, David Howells wrote:
> Make BIO_PAGE_REFFED the same as FOLL_GET and BIO_PAGE_PINNED the same as
> FOLL_PIN numerically so that the BIO_* flags can be passed directly to
> page_put_unpin().

Umm, no.  No matching entangling of flags, please.