Re: [PATCH v4 3/5] powerpc/numa: Use cpu node map of first sibling thread

Srikar Dronamraju [off-list ref] writes:

All the sibling threads of a core have to be part of the same node.
To ensure that all the sibling threads map to the same node, always
lookup/update the cpu-to-node map of the first thread in the core.

Reviewed-by: Nathan Lynch <redacted>