On Mon, Sep 10, 2012 at 09:18:30AM +0800, Shaohua Li wrote: > isolate_migratepages_range() might isolate none pages, for example, when > zone->lru_lock is contended and compaction is async. In this case, we should > abort compaction, otherwise, compact_zone will run a useless loop and make > zone->lru_lock is even contended. > > V2: > only abort the compaction if lock is contended or run too long > Rearranged the code by Andrea Arcangeli. > > Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx> > Signed-off-by: Shaohua Li <shli@xxxxxxxxxxxx> Acked-by: Mel Gorman <mgorman@xxxxxxx> -- Mel Gorman SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>