On Wed, Jun 24, 2020 at 02:58:44PM +0530, Srikar Dronamraju wrote: > A Powerpc system with multiple possible nodes and with CONFIG_NUMA > enabled always used to have a node 0, even if node 0 does not any cpus > or memory attached to it. As per PAPR, node affinity of a cpu is only > available once its present / online. For all cpus that are possible but > not present, cpu_to_node() would point to node 0. > > To ensure a cpuless, memoryless dummy node is not online, powerpc need > to make sure all possible but not present cpu_to_node are set to a > proper node. > > Cc: [email protected] > Cc: [email protected] > Cc: [email protected] > Cc: Michal Hocko <[email protected]> > Cc: Mel Gorman <[email protected]> > Cc: Vlastimil Babka <[email protected]> > Cc: "Kirill A. Shutemov" <[email protected]> > Cc: Christopher Lameter <[email protected]> > Cc: Michael Ellerman <[email protected]> > Cc: Andrew Morton <[email protected]> > Cc: Linus Torvalds <[email protected]> > Cc: Gautham R Shenoy <[email protected]> > Cc: Satheesh Rajendran <[email protected]> > Cc: David Hildenbrand <[email protected]> > Signed-off-by: Srikar Dronamraju <[email protected]>
This looks good to me. Reviewed-by: Gautham R. Shenoy <[email protected]> -- Thanks and Regards gautham.
