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From: Rik van Riel <riel@redhat.com>
To: Arjan van de Ven <arjanv@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>,
	linux-mm@kvack.org, akpm@digeo.com, phillips@arcor.de
Subject: Re: [PATCH] dirty bit clearing on s390.
Date: Thu, 22 May 2003 10:35:08 -0400 (EDT)	[thread overview]
Message-ID: <Pine.LNX.4.44.0305221034480.18177-100000@chimarrao.boston.redhat.com> (raw)
In-Reply-To: <1053603729.2360.0.camel@laptop.fenrus.com>

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.

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  parent reply	other threads:[~2003-05-22 14:35 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-05-22 11:20 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 [this message]
2003-05-22 15:18     ` Daniel Phillips
2003-05-23 22:52 ` Andrew Morton
2003-05-26  6:24 Martin Schwidefsky

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