On Tue, 18 Jun 2013, Zhang Yanfei wrote: > From: Zhang Yanfei <zhangyan...@cn.fujitsu.com> > > 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 <rient...@google.com> > Signed-off-by: Zhang Yanfei <zhangyan...@cn.fujitsu.com>
Acked-by: David Rientjes <rient...@google.com> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
