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From: Daniel Phillips <phillips@arcor.de>
To: Rik van Riel <riel@redhat.com>, Arjan van de Ven <arjanv@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>,
	linux-mm@kvack.org, akpm@digeo.com
Subject: Re: [PATCH] dirty bit clearing on s390.
Date: Thu, 22 May 2003 17:18:52 +0200	[thread overview]
Message-ID: <200305221718.52392.phillips@arcor.de> (raw)
In-Reply-To: <Pine.LNX.4.44.0305221034480.18177-100000@chimarrao.boston.redhat.com>

On Thursday 22 May 2003 16:35, Rik van Riel wrote:
> On 22 May 2003, Arjan van de Ven wrote:
> > On Thu, 2003-05-22 at 13:20, Martin Schwidefsky wrote:
> > > Our solution is to move the clearing of the storage key (dirty bit)
> > > from set_pte to SetPageUptodate. A patch that implements this is
> > > attached. What do you think ?
> >
> > Is there anything that prevents a thread mmaping the page to redirty it
> > before the kernel marks it uptodate ?
>
> Nobody will mmap a page before PG_uptodate has been set.

Thanks, Rik.  This needs to go in as a comment.

Regards,

Daniel
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  reply	other threads:[~2003-05-22 15:18 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-05-22 11:20 [PATCH] dirty bit clearing on s390 Martin Schwidefsky
2003-05-22 11:40 ` Christoph Hellwig
2003-05-22 11:42 ` Arjan van de Ven
2003-05-22 14:21   ` Daniel Phillips
2003-05-22 14:35   ` Rik van Riel
2003-05-22 15:18     ` Daniel Phillips [this message]
2003-05-23 22:52 ` Andrew Morton
  -- strict thread matches above, loose matches on Subject: below --
2003-05-26  6:24 Martin Schwidefsky

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