linux-kernel - Re: [PATCH v3 04/49] mm: page_io.c: comment on direct access to bvec table

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Message-ID: <20170810111443.GB20308@infradead.org>
Date:   Thu, 10 Aug 2017 04:14:43 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Ming Lei <ming.lei@...hat.com>
Cc:     Jens Axboe <axboe@...com>, Christoph Hellwig <hch@...radead.org>,
        Huang Ying <ying.huang@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH v3 04/49] mm: page_io.c: comment on direct access to bvec
 table

Can we just add a bio_first_page macro that always return the first
page in the bio?