Messages in this thread |  | | Date | Wed, 10 Jan 2001 11:03:21 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: Subtle MM bug |
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On 10 Jan 2001, Eric W. Biederman wrote:
> Andrea Arcangeli <andrea@suse.de> writes: > > > > Once I or other developer finishes with the reverse lookup from page to > > pte-chain (an implementation from DaveM just exists) we'll be able to put them > > in a separate lru, but it's certainly not a 2.4.1-pre2 thing. > > Why do we even want to do reverse page tables?
We don't.
But it does come up every once in a while, and it will probably continue to do so.
I looked at it a year or two ago myself, and came to the conclusion that I don't want to blow up our page table size by a factor of three or more, so I'm not personally interested any more. Maybe somebody else comes up with a better way to do it, or with a really compelling reason to.
"Feel free to try" is definitely the open source motto.
Linus
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