powerpc/hotplug: Improve responsiveness of hotplug change

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powerpc/hotplug: On Power systems with shared configurations of CPUs
and memory, there are some issues with the association of additional
CPUs and memory to nodes when hot-adding resources.  During hotplug
CPU operations, this patch resets the timer on topology update work
function to a small value to better ensure that the CPU topology is
detected and configured sooner.

Signed-off-by: Michael Bringmann <mwb@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Michael Bringmann 2017-09-08 15:47:47 -05:00 • committed by Michael Ellerman

parent a3496e9137

commit cee5405da4

3 changed files with 32 additions and 1 deletions

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8

arch/powerpc/include/asm/topology.h

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23

arch/powerpc/mm/numa.c

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2

arch/powerpc/platforms/pseries/hotplug-cpu.c

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