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    SubjectRe: [patch 1/6] mmu_notifier: Core code
    On Wed, 30 Jan 2008, Robin Holt wrote:

    > Index: git-linus/mm/mmu_notifier.c
    > ===================================================================
    > --- git-linus.orig/mm/mmu_notifier.c 2008-01-30 11:43:45.000000000 -0600
    > +++ git-linus/mm/mmu_notifier.c 2008-01-30 11:56:08.000000000 -0600
    > @@ -99,3 +99,8 @@ void mmu_rmap_notifier_unregister(struct
    > }
    > EXPORT_SYMBOL(mmu_rmap_notifier_unregister);
    >
    > +void mmu_rmap_export_page(struct page *page)
    > +{
    > + SetPageExternalRmap(page);
    > +}
    > +EXPORT_SYMBOL(mmu_rmap_export_page);

    Then mmu_rmap_export_page would have to be called before the subsystem
    establishes the rmap entry for the page. Could we do all PageExternalRmap
    modifications under Pagelock?




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