Re: [PATCH 1/1] powerpc/smp: Set numa node before updating mask

Srikar Dronamraju [off-list ref] writes:

* Nathan Lynch [off-list ref] [2021-04-07 14:46:24]:

quoted

I don't know. I guess this question just makes me wonder whether powerpc
needs to have the additional lookup table. How is it different from the
generic per_cpu numa_node?

lookup table is for early cpu to node i.e when per_cpu variables may not be
available. This would mean that calling set_numa_node/set_cpu_numa_node from
map_cpu_to_node() may not always be an option, since map_cpu_to_node() does
end up getting called very early in the system.

Ah that's right, thanks.