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    SubjectRe: [PATCH v3 05/12] Export __get_user_pages_fast.
    On Tue, Jan 05, 2010 at 04:12:47PM +0200, Gleb Natapov wrote:
    > KVM will use it to try and find a page without falling back to slow
    > gup. That is why get_user_pages_fast() is not enough.

    Btw, it seems like currently is declared unconditionally in linux/mm.h
    but only implemented by x86, and you code using it needs ifdefs for
    that. I think you should just introduce a stub that always returns
    an error here.



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