On Fri, Sep 21, 2012 at 11:46:18AM +0100, Mel Gorman wrote: > From: Shaohua Li <[email protected]> > > Changelog since V2 > o Fix BUG_ON triggered due to pages left on cc.migratepages > o Make compact_zone_order() require non-NULL arg `contended' > > Changelog since V1 > o only abort the compaction if lock is contended or run too long > o Rearranged the code by Andrea Arcangeli. > > isolate_migratepages_range() might isolate no pages if for example when > zone->lru_lock is contended and running asynchronous compaction. In this > case, we should abort compaction, otherwise, compact_zone will run a > useless loop and make zone->lru_lock is even contended. > > [[email protected]: Putback pages isolated for migration if aborting] > [[email protected]: compact_zone_order requires non-NULL arg > contended] > Signed-off-by: Andrea Arcangeli <[email protected]> > Signed-off-by: Shaohua Li <[email protected]> > Signed-off-by: Mel Gorman <[email protected]> > Acked-by: Rik van Riel <[email protected]> Acked-by: Minchan Kim <[email protected]>
-- Kind regards, Minchan Kim -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
