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    SubjectRe: [RFC][PATCH 2/4] memcg: fix error path of mem_cgroup_move_parent
    * Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> [2009-01-09 14:33:46]:

    > > Looks good to me, just out of curiousity how did you catch this error?
    > > Through review or testing?
    > >
    > Through testing.
    >
    > I got "an unremovable directory" sometimes, which had res.usage remained
    > even after all lru lists had become empty, or which had ref counts remained
    > even after res.usage had become 0.
    > And tracked down the cause of this problem .
    >

    Thanks,

    Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>

    --
    Balbir


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