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    Subject[RFC 5/8] compaction: remove active list counting
    Date
    acct_isolated of compaction uses page_lru_base_type which returns only
    base type of LRU list so it never returns LRU_ACTIVE_ANON or LRU_ACTIVE_FILE.
    So it's pointless to add lru[LRU_ACTIVE_[ANON|FILE]] to get sum.

    Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
    Cc: Mel Gorman <mgorman@suse.de>
    Cc: Rik van Riel <riel@redhat.com>
    Cc: Andrea Arcangeli <aarcange@redhat.com>
    Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
    ---
    mm/compaction.c | 4 ++--
    1 files changed, 2 insertions(+), 2 deletions(-)

    diff --git a/mm/compaction.c b/mm/compaction.c
    index 9f80b5a..653b02b 100644
    --- a/mm/compaction.c
    +++ b/mm/compaction.c
    @@ -219,8 +219,8 @@ static void acct_isolated(struct zone *zone, struct compact_control *cc)
    count[lru]++;
    }

    - cc->nr_anon = count[LRU_ACTIVE_ANON] + count[LRU_INACTIVE_ANON];
    - cc->nr_file = count[LRU_ACTIVE_FILE] + count[LRU_INACTIVE_FILE];
    + cc->nr_anon = count[LRU_INACTIVE_ANON];
    + cc->nr_file = count[LRU_INACTIVE_FILE];
    __mod_zone_page_state(zone, NR_ISOLATED_ANON, cc->nr_anon);
    __mod_zone_page_state(zone, NR_ISOLATED_FILE, cc->nr_file);
    }
    --
    1.7.1


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