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    SubjectRe: [patch 3/6] mmu_notifier: invalidate_page callbacks
    Date
    On Saturday 16 February 2008 14:37, Andrew Morton wrote:
    > On Thu, 14 Feb 2008 22:49:02 -0800 Christoph Lameter <clameter@sgi.com>
    wrote:
    > > Two callbacks to remove individual pages as done in rmap code
    > >
    > > invalidate_page()
    > >
    > > Called from the inner loop of rmap walks to invalidate pages.
    > >
    > > age_page()
    > >
    > > Called for the determination of the page referenced status.
    > >
    > > If we do not care about page referenced status then an age_page callback
    > > may be be omitted. PageLock and pte lock are held when either of the
    > > functions is called.
    >
    > The age_page mystery shallows.

    BTW. can this callback be called mmu_notifier_clear_flush_young? To
    match the core VM.



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