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    SubjectRe: fadvise DONTNEED implementation (or lack thereof)
    Date
    > > I wonder what's the problem in Peter's patch 'drop behind'.
    > > http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg179576.html
    > >
    > > Could anyone tell me why it can't accept upstream?
    >
    > Read the thread, its quite clear nobody got convinced it was a good idea
    > and wanted to fix the use-once policy, then Rik rewrote all of
    > page-reclaim.

    If my understand is correct, rsync touch data twice (for a hash calculation
    and for a copy). then, currect used-once-heuristics seems still doesn't work.







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