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Subject: Re: [RFC] Arch option to touch newly allocated pages
To: jdike@karaya.com (Jeff Dike)
Date: Mon, 4 Mar 2002 18:49:47 +0000 (GMT)
Cc: alan@lxorguk.ukuu.org.uk (Alan Cox), linux-kernel@vger.kernel.org
In-Reply-To: <200203041836.NAA03308@ccure.karaya.com> from "Jeff Dike" at Mar 04, 2002 01:36:06 PM
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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> > alloc_pages is only called at the time the backing page is created -
> > by then it doesnt matter - its too late.
> 
> *My* (i.e. the one inside UML) alloc_pages, not the host's would do the
> dirtying.  That's the whole point.  The UML alloc_pages would make sure
> that the pages it hands out are backed on the host before they are handed
> out to the rest of UML.

Ok got you - so its merely grossly ineffecient and downright rude to
other users of the system ?
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