[PATCH 0/2] powerpc/pseries: Perform PRRN topology updates in kernel

John Allen jallen at linux.vnet.ibm.com
Tue Dec 13 08:01:14 AEDT 2016


Formerly, when we received a PRRN rtas event, device tree updating was
performed in the kernel and the actual topology updating was performed in
userspace. This was necessary as in order to update the topology for memory,
we must perform a hot remove and a subsequent hot add and until recently,
memory hotplug was not included in the kernel. Since memory hotplug is now
available, this patchset moves the PRRN topology updating into the kernel.

John Allen (2):
      powerpc/pseries: Introduce memory hotplug READD operation
      powerpc/pseries: Update affinity for memory and cpus specified in a PRRN event

 arch/powerpc/include/asm/rtas.h                 |    1
 arch/powerpc/kernel/rtasd.c                     |    7 +++
 arch/powerpc/platforms/pseries/hotplug-memory.c |    5 ++
 arch/powerpc/platforms/pseries/mobility.c       |   48 +++++++++++++++++++++++
 4 files changed, 60 insertions(+), 1 deletion(-)



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