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    Subjectsync_mm_rss() issues
    Date

    There are a couple of issues with sync_mm_rss(), as added by patch:

    commit 34e55232e59f7b19050267a05ff1226e5cd122a5
    Author: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
    Date: Fri Mar 5 13:41:40 2010 -0800
    Subject: mm: avoid false sharing of mm_counter

    (1) You haven't implemented it for NOMMU mode. What's the right way to do
    this? Just give an empty function?

    (2) linux/mm.h should carry the empty function as an inline when
    CONFIG_SPLIT_RSS_COUNTING=n, rather than it being defined as an empty
    function in mm/memory.c.

    David


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