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Subject: Re: The IBM order relaxation patch
To: Rik van Riel <riel@conectiva.com.br>
Cc: Daniel Phillips <phillips@bonn-fries.net>, <zaitcev@redhat.com>,
        <linux-kernel@vger.kernel.org>
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From: "Ulrich Weigand" <Ulrich.Weigand@de.ibm.com>
Date: Thu, 7 Feb 2002 16:05:28 +0100
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Rik van Riel wrote:

>On Thu, 7 Feb 2002, Daniel Phillips wrote:
>
>> Yes, that's one of leading reasons for wanting rmap.  (Number one and
>> two reasons are: allow forcible unmapping of multiply referenced pages
>> for swapout; get more reliable hardware ref bit readings.)
>
>It's still on my TODO list.  Patches are very much welcome
>though ;)

On s390 we have per physical page hardware referenced / changed bits.
In the rmap framework, it should also be possible to make more efficient
use of these ...


Mit freundlichen Gruessen / Best Regards

Ulrich Weigand

--
  Dr. Ulrich Weigand
  Linux for S/390 Design & Development
  IBM Deutschland Entwicklung GmbH, Schoenaicher Str. 220, 71032 Boeblingen
  Phone: +49-7031/16-3727   ---   Email: Ulrich.Weigand@de.ibm.com

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