On 08/02/2015 07:05 PM, Xishi Qiu wrote: >> > Also, this might not do very much good in practice. If you are >> > splitting a high-order page, you are doing the split because the >> > lower-order lists are empty. So won't that list_add() be to an empty > > I made a mistake, you are right, all the lower-order lists are empty, > so it is no sense to add to the tail.
I actually tested this experimentally and the lists are not always empty. It's probably __rmqueue_smallest() vs. __rmqueue_fallback() logic. In any case, you might want to double-check. -- 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/
