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    SubjectRe: [PATCH] mm/nommu.c:Dynamic alloc/free percpu area for nommu
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    On Mon, Mar 22, 2010 at 7:50 PM, David Howells <dhowells@redhat.com> wrote:
    > <graff.yang@gmail.com> wrote:
    >
    >> -     return virt_to_page(addr);
    >> +     return (struct page *)
    >> +                     (virt_to_page(addr)->index) ? : virt_to_page(addr);
    >
    > Can the extra conditional operator be made subject to CONFIG_SMP?

    OK.
    Tejun is looking into the up layer percpu code. So I expecting there
    is better way
    to hook nommu in.


    >
    >> -     return page_to_pfn(virt_to_page(addr));
    >> +     return page_to_pfn((struct page *)
    >> +                     (virt_to_page(addr)->index) ? : virt_to_page(addr));
    >
    > Ditto.
    >
    >> +#ifdef CONFIG_SMP
    >> ...
    >> +#endif
    >
    > Can this be put into a separate file?  There's rather a lot in mm/nommu.c
    > these days.
    >
    > David
    >



    --
    -Graff
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