Does not related to this patch, but...
On Sat, 05 Oct 2002, Oleg Nesterov wrote:
>
> Ingo Molnar wrote:
> > the new lookup code first does a lightweight follow_page(), then if no
> > page is present we do the get_user_pages() thing.
>
> What if futex placed in VM_HUGETLB area?
> Then follow_page() return garbage.
I think __pin_page(addr_in_hugetlb_area) has serious problems.
Oleg.
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