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    SubjectRe: [PATCH 00/10] ksm resend
    On Fri, Jul 17, 2009 at 08:30:40PM +0300, Izik Eidus wrote:
    > The code still need to get Andrea Arcangeli acks.
    > (he was busy and will ack it later).

    Ack it all except that detail in 6/10 as I'm unconvinced about ksm
    pages having to return 1 on PageAnon check. I believe they deserve a
    different bitflag in the mapping pointer. The smallest possible
    alignment for mapping pointer is 4 on 32bit archs so there is space
    for it and later it can be renamed EXTERNAL to generalize. We shall
    make good use of that bitflag as it's quite precious to introduce
    non-linearity in linear vmas, and not wire it to KSM only. But in
    meantime we'll get better testing coverage by not having that PageKsm
    == PageAnon invariant I think that I doubt we're going to retain (at
    least with this implementation of PageKsm).

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