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    Subject[PATCH 19/19] TuxOnIce: Don't try to wake kswapd if the freezer is on.
    Date
    If a process gets into wakeup_kswapd while other processes are frozen,
    we don't want it to actually wake kswapd (memory pressure may be caused
    by TuxOnIce trying to free memory).

    Signed-off-by: Nigel Cunningham <nigel@tuxonice.net>
    ---
    mm/vmscan.c | 3 +++
    1 files changed, 3 insertions(+), 0 deletions(-)

    diff --git a/mm/vmscan.c b/mm/vmscan.c
    index 5fa3eda..ae44189 100644
    --- a/mm/vmscan.c
    +++ b/mm/vmscan.c
    @@ -2034,6 +2034,9 @@ void wakeup_kswapd(struct zone *zone, int order)
    if (!populated_zone(zone))
    return;

    + if (freezer_is_on())
    + return;
    +
    pgdat = zone->zone_pgdat;
    if (zone_watermark_ok(zone, order, zone->pages_low, 0, 0))
    return;
    --
    1.5.6.3


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