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Message-Id: <1183296468.5180.10.camel@lappy>
Date: Sun, 01 Jul 2007 15:27:48 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: Hugh Dickins <hugh@...itas.com>
Cc: Martin Schwidefsky <schwidefsky@...ibm.com>,
linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [patch 5/5] Optimize page_mkclean_one
On Sun, 2007-07-01 at 09:54 +0100, Hugh Dickins wrote:
> But I could easily be overlooking something: Peter will recall.
/me tries to get his brain up to speed after the OLS closing party :-)
I did both pte_dirty and pte_write because I was extra careful. One
_should_ imply the other, but since we'll be clearing both, I thought it
prudent to also check both.
I will have to think on this a little more, but I'm currently of the
opinion that the optimisation is not correct. But I'll have a thorough
look at s390 again when I get home.
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