On Tue, 18 Jun 2013, Zhang Yanfei wrote: > From: Zhang Yanfei <zhangyanfei@xxxxxxxxxxxxxx> > > In __rmqueue_fallback(), current_order loops down from MAX_ORDER - 1 > to the order passed. MAX_ORDER is typically 11 and pageblock_order > is typically 9 on x86. Integer division truncates, so pageblock_order / 2 > is 4. For the first eight iterations, it's guaranteed that > current_order >= pageblock_order / 2 if it even gets that far! > > So just remove the unlikely(), it's completely bogus. > > Suggested-by: David Rientjes <rientjes@xxxxxxxxxx> > Signed-off-by: Zhang Yanfei <zhangyanfei@xxxxxxxxxxxxxx> Acked-by: David Rientjes <rientjes@xxxxxxxxxx> -- 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>