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Date: Tue, 24 Mar 2015 11:32:19 +0100
From: Christoph Hellwig <hch@lst.de>
To: Ming Lei <ming.lei@canonical.com>
Cc: Jens Axboe <axboe@fb.com>, linux-kernel@vger.kernel.org,
        Christoph Hellwig <hch@lst.de>, Al Viro <viro@zeniv.linux.org.uk>,
        Maxim Patlasov <mpatlasov@parallels.com>
Subject: Re: [PATCH 0/3] block: loop: switch to VFS ITER_BVEC
Message-ID: <20150324103219.GD7002@lst.de>
References: <1427012095-4095-1-git-send-email-ming.lei@canonical.com>
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On Sun, Mar 22, 2015 at 04:14:51PM +0800, Ming Lei wrote:
> This patchset uses VFS ITER_BVEC for reading/writing
> loop backing file, and basically it is a rewriting of
> Christoph Hellwig's post in [1].

What is the benefit over my older version?  From all I can see the
code is a lot more complicated without any obvious benefit.