linux-kernel - Re: [PATCH 15/60] block: loop: comment on direct access to bvec table

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Message-ID: <20161031153149.GH30919@infradead.org>
Date:   Mon, 31 Oct 2016 08:31:49 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Ming Lei <tom.leiming@...il.com>
Cc:     Jens Axboe <axboe@...com>, linux-kernel@...r.kernel.org,
        linux-block@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        Christoph Hellwig <hch@...radead.org>,
        "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>,
        Hannes Reinecke <hare@...e.com>,
        Mike Christie <mchristi@...hat.com>,
        Minfei Huang <mnghuan@...il.com>,
        Petr Mladek <pmladek@...e.com>
Subject: Re: [PATCH 15/60] block: loop: comment on direct access to bvec table

Btw, the lib/iov_iter.c code that iterates over bvec currently
expects single-page segments.  Is the loop code fine with that?
Even if it is I think we'd be much better off if it becomes multipage
segment aware.