On Fri, May 07, 2010 at 04:11:42PM +0200, Pavel Machek wrote: > Hi! > > > hotplug emulator: Abstract cpu register functions > > > > Abstract function arch_register_cpu and register_cpu, move the implementation > > details to a sub function with prefix "__". > > > > each of the sub function has an extra parameter nid, it can be used to register > > CPU under a fake NUMA node, it is a reserved interface for cpu hotplug emulation > > (CPU PROBE/RELEASE) in x86. > > I don't get it. CPU hotplug can already be tested using echo 0/1 > > online, and that works on 386. How is this different? > > It seems to add some numa magic. Why is it important? My guess is that he wants to test the software surrounding NUMA on a non-NUMA (or different-NUMA) machine, perhaps in order to shake out bugs before the corresponding hardware is available. Thanx, Paul -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>