Re: How to read-protect a vm_area?
Alan Cox (alan@lxorguk.ukuu.org.uk)
Sat, 14 Feb 1998 11:41:53 +0000 (GMT)
> I looked in an i386 book. It has a Present bit and a Read/Write bit as
> part of its page protection system. I think it is simply not possible
> to read-protect a page without swapping it!
You just mark it "not present". Its up to you to remember its really around
somewhere ;)
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