On Wed, 3 Aug 2005, Linus Torvalds wrote:
>
> Ok, I applied this because it was reasonably pretty and I liked the
> approach. It seems buggy, though, since it was using "switch ()" to test
> the bits (wrongly, afaik), and I'm going to apply the appended on top of
> it. Holler quickly if you disagreee..
Another problem I just thought of.
What about PROT_NONE pages? Afaik, they have _exactly_ the same issue on
the read side as a PROT_READ page has on the write side: pte_read() may
fail on them.
What makes us not get into an infinite loop there?
Linus
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