Hello, On Tue, Jun 11, 2013 at 09:55:40AM +0200, Michal Hocko wrote: > > Anyways, I think we're getting too deep into details but one more > > thing, what do you mean by "non-NULL new cache"? > > If you replace cached memcg by a new (non-NULL) one then all the parents > up the hierarchy can reuse the same replacement and do not have to > search again. As finding the next one to visit is pretty cheap, it isn't likely to be a big difference but yeah we can definitely re-use the first non-NULL next for all further ancestors. Thanks. -- tejun -- 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>