On 04/08/2014 11:21 PM, Ingo Molnar wrote: > > I think the real underlying objection was that PTE_NUMA was the last > leftover from AutoNUMA, and removing it would have made it not a > 'compromise' patch set between 'AutoNUMA' and 'sched/numa', but would > have made the sched/numa approach 'win' by and large. > > The whole 'losing face' annoyance that plagues all of us (me > included). > > I didn't feel it was important to the general logic of adding access > pattern aware NUMA placement logic to the scheduler, and I obviously > could not ignore the NAKs from various mm folks insisting on PTE_NUMA, > so I conceded that point and Mel built on that approach as well. > > Nice it's being cleaned up, and I'm pretty happy about how NUMA > balancing ended up looking like. > How painful would it be to get rid of _PAGE_NUMA entirely? Page bits are a highly precious commodity and saving one would be valuable. -hpa -- 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>