[1/2] powerpc/numa: improve control of topology updates

Michael Ellerman patch-notifications at ellerman.id.au
Mon Apr 22 00:19:15 AEST 2019


On Thu, 2019-04-18 at 18:56:57 UTC, Nathan Lynch wrote:
> When booted with "topology_updates=no", or when "off" is written to
> /proc/powerpc/topology_updates, NUMA reassignments are inhibited for
> PRRN and VPHN events. However, migration and suspend unconditionally
> re-enable reassignments via start_topology_update(). This is
> incoherent.
> 
> Check the topology_updates_enabled flag in
> start/stop_topology_update() so that callers of those APIs need not be
> aware of whether reassignments are enabled. This allows the
> administrative decision on reassignments to remain in force across
> migrations and suspensions.
> 
> Signed-off-by: Nathan Lynch <nathanl at linux.ibm.com>

Series applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/2d4d9b308f8f8dec68f6dbbff18c68ec

cheers


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