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    SubjectRe: [PATCH] memcg: revert fix to mapcount check for this release
    On Fri, 9 Mar 2012 13:37:32 -0800 (PST)
    Hugh Dickins <hughd@google.com> wrote:

    > Respectfully revert commit e6ca7b89dc76 "memcg: fix mapcount check
    > in move charge code for anonymous page" for the 3.3 release, so that
    > it behaves exactly like releases 2.6.35 through 3.2 in this respect.
    >
    > Horiguchi-san's commit is correct in itself, 1 makes much more sense
    > than 2 in that check; but it does not go far enough - swapcount
    > should be considered too - if we really want such a check at all.
    >
    > We appear to have reached agreement now, and expect that 3.4 will
    > remove the mapcount check, but had better not make 3.3 different.
    >
    > Signed-off-by: Hugh Dickins <hughd@google.com>

    Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>



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