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Date: Wed, 10 Jun 2015 00:36:03 -0700
From: Christoph Hellwig <hch@infradead.org>
To: Ming Lei <ming.lei@canonical.com>
Cc: linux-kernel@vger.kernel.org, Dave Kleikamp <dave.kleikamp@oracle.com>,
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        Alexander Viro <viro@zeniv.linux.org.uk>, Tejun Heo <tj@kernel.org>,
        Dave Chinner <david@fromorbit.com>
Subject: Re: [PATCH v5 2/5] block: loop: set QUEUE_FLAG_NOMERGES for request
 queue of loop
Message-ID: <20150610073603.GB6964@infradead.org>
References: <1433857766-6153-1-git-send-email-ming.lei@canonical.com>
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On Tue, Jun 09, 2015 at 09:49:23PM +0800, Ming Lei wrote:
> It doesn't make sense to enable merge because the I/O
> submitted to backing file is handled page by page.

Looks fine, but does it make any difference?