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Message-Id: <20141105130018.7750139c497f842bdf6070e4@linux-foundation.org>
Date: Wed, 5 Nov 2014 13:00:18 -0800
From: Andrew Morton <akpm@...ux-foundation.org>
To: Benjamin LaHaise <bcrl@...ck.org>
Cc: Gu Zheng <guz.fnst@...fujitsu.com>, linux-aio@...ck.org,
m.koenigshaus@....de, linux-kernel@...r.kernel.org,
stable@...r.kernel.org
Subject: Re: [PATCH] aio: fix uncorrent dirty pages accouting when
truncating AIO ring buffer
On Wed, 5 Nov 2014 09:56:20 -0500 Benjamin LaHaise <bcrl@...ck.org> wrote:
> On Wed, Nov 05, 2014 at 05:53:11PM +0800, Gu Zheng wrote:
> > ping...
>
> I need someone a bit more familiar with this area of code to chime in on
> reviewing this. Andrew, can you provide any feedback on this fix?
That looks like a sensible solution and the changelog is good. A
couple of suggested modifications:
- Don't use the term "pinned" in the changelog without explaining it
- it's a terribly ambiguous term. I assume here you mean "pinned by
elevating the page's refcount"?
- Could we have just one wee little code comment, explaining why
aio_fs_backing_dev_info exists, what function it is serving? Put
yourself in the position of a reader wondering "why is this here".
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