[PATCH v4] pseries: prevent free CPU ids to be reused on another node

[Nathan Lynch]

Laurent Dufour <ldufour at linux.ibm.com> writes:
>
> Changes since V3, addressing Nathan's comment:
>  - Rename the local variable named 'nid' into 'assigned_node'
> Changes since V2, addressing Nathan's comments:
>  - Remove the retry feature
>  - Reduce the number of local variables (removing 'i')
>  - Add comment about the cpu_add_remove_lock protecting the added CPU mask.
> Changes since V1 (no functional changes):
>  - update the test's output in the commit's description
>  - node_recorded_ids_map should be static
>
> Signed-off-by: Laurent Dufour <ldufour at linux.ibm.com>

Thanks Laurent.

Reviewed-by: Nathan Lynch <nathanl at linux.ibm.com>