[PATCH 0/2] powerpc/pseries: Improve serialization of PRRN events

[John Allen]

Stress testing has uncovered issues with handling continuously queued PRRN
events. Running PRRN events in this way can seriously load the system given
the sheer volume of dlpar being handled. This patchset ensures that PRRN
events are handled more synchronously, only allowing the PRRN handler to
queue a single dlpar event at any given time.  Additionally, it ensures
that rtas polling continues normally when multiple PRRN events are queued
simultaneously.

John Allen (2):
  pseries/prrn: Avoid blocking rtas polling handling multiple PRRN
    events
  pseries/prrn: Wait for completion of hotplug events during PRRN
    handling

 arch/powerpc/kernel/rtasd.c               | 11 ++++++++---
 arch/powerpc/platforms/pseries/mobility.c |  5 ++++-
 2 files changed, 12 insertions(+), 4 deletions(-)

-- 
2.17.1