On Fri, Dec 12, 2014 at 06:19:54PM +0800, Lai Jiangshan wrote: > We fixed the major cases when the numa mapping is changed. > > We still have the assumption that when the node<->cpu mapping is changed > the original node is offline, and the current code of memory-hutplug also > prove this. > > This assumption might be changed in future and the orig_node is still online > in some cases. And in these cases, the cpumask of the pwqs of the orig_node > still contains the onlining CPU which is a CPU of another node, and the worker > may run on the onlining CPU (aka run on the wrong node). > > So we drop this assumption and make the code calls wq_update_unbound_numa() > to update the affinity in this case.
This is seriously obfuscating. I really don't think meddling with existing pools is a good idea. The foundation those pools were standing are gone. Drain and discard the pools. Please don't try to retro-fit it to new foundations. Thanks. -- tejun -- 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/
