On Fri, Oct 24, 2014 at 10:32 AM, David Miller <davem@xxxxxxxxxxxxx> wrote:
>
> It's really idiotic to have a weak symbolled fallback that just
> returns zero, and causes this kind of bug. There should be no
> backup implementation and the link should fail if the architecture
> fails to provide __get_user_pages_fast() and supports transparent
> hugepages.
Agreed. I think the weak fallback is for the "no hugepages support"
case, but that does sound very annoying and fragile.
Linus
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