Subject: [PATCH 0/2] more migration vs CPU hotplug fixes

From: Nathan Lynch <[email-masked]>
Date: Thu, 18 Jul 2019 14:29:38 -0500

Despite recent fixes, userspace-initiated CPU hotplug still can
destructively race with the migration code's CPU state manipulations
on the destination. Also, since such manipulations can consist of
mass-onlining and -offlining half or more of the CPUs in the system,
take care to reschedule when needed.

Nathan Lynch (2):
  powerpc/rtas: use device model APIs and serialization during LPM
  powerpc/rtas: allow rescheduling while changing cpu states

 arch/powerpc/kernel/rtas.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

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2.20.1