Hello, On 04/14/2010 12:48 AM, Mel Gorman wrote: > and the mapping table on x86 at least is based on possible CPUs in > init_cpu_to_node() leaves the mapping as 0 if the APIC is bad or the numa > node is reported in apicid_to_node as -1. It would appear on power that > the node will be 0 for possible CPUs as well. > > Hence, I believe this to be safe but a confirmation from Tejun would be > nice. I would continue digging but this looks like an initialisation path > so I'll move on to the next patch rather than spending more time. This being a pretty cold path, I don't really see much benefit in converting it to alloc_pages_node_exact(). It ain't gonna make any difference. I'd rather stay with the safer / boring one unless there's a pressing reason to convert. Thanks. -- tejun -- 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>