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SubjectRe: Linux-2.5.17

Linus Torvalds wrote:

> I don't think there is any validity any more in the "opaque type" comment,
> and I'd rather expose the fact that it _has_ to have the rss computations
> inside of it than have more made-up interfaces to hide it.
> The fact is, the rss cannot be computed anywhere else any more, so why
> play games about it?

Basically I could agree with it, but something looks wrong. Why exactly
is pte_free_tlb() needed in first place? Why does it call
tlb_remove_page()? A page mapped into user space has little to do with a
page used as page table. Latter is never in the user tlb, so it doesn't
need to be removed from it, so calling tlb_remove_page() is just a more
complicated way of calling __free_page() or am I missing something?

bye, Roman
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