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Date: Mon, 18 Feb 2002 17:48:11 -0800 (PST)
From: Linus Torvalds <torvalds@transmeta.com>
To: Rik van Riel <riel@conectiva.com.br>
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Subject: Re: [RFC] Page table sharing
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On Mon, 18 Feb 2002, Rik van Riel wrote:
>
> We'll need protection from the swapout code.

Absolutely NOT.

If the swapout code unshares or shares the PMD, that's a major bug.

The swapout code doesn't need to know one way or the other, because the
swapout code never actually touches the pmd itself, it just follows the
pointers - it doesn't ever need to worry about the pmd counts at all.

		Linus

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