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    SubjectRe: [PATCH 1/2] memcg: remove unnecessary BUG_ON
    On Tue, 11 Jan 2011 17:51:11 +0900
    Minchan Kim <minchan.kim@gmail.com> wrote:

    > Now memcg in unmap_and_move checks BUG_ON of charge.
    > mem_cgroup_prepare_migration returns either 0 or -ENOMEM.
    > If it returns -ENOMEM, it jumps out unlock without the check.
    > If it returns 0, it can pass BUG_ON. So it's meaningless.
    > Let's remove it.
    >
    > Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
    > Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
    > Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
    > Signed-off-by: Minchan Kim <minchan.kim@gmail.com>

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



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