[Testing delayed due to internal SAN problems.]
The migration of LPARs across Power systems affects many attributes
including that of the associativity of CPUs. The patches in this
set execute when a system is coming up fresh upon a migration target.
They are intended to,
* Recognize changes to the associativity of CPUs recorded in internal
data structures when compared to the latest copies in the device tree.
* Generate calls to other code layers to reset the data structures
related to associativity of the CPUs.
* Re-register the 'changed' entities into the target system.
Re-registration of CPUs mostly entails acting as if they have been
newly hot-added into the target system.
Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com>
Michael Bringmann (4):
hotplug/cpu: Conditionally acquire/release DRC index
hotplug/cpu: Add operation queuing function
hotplug/dlpar/cpu: Provide CPU readd operation
mobility/numa: Ensure numa update does not overlap
---
Changes in RFC:
-- Restructure and rearrange content of patches to co-locate
similar or related modifications
-- Rename pseries_update_drconf_cpu to pseries_update_cpu
-- Simplify code to update CPU nodes during mobility checks.
Remove functions to generate extra HP_ELOG messages in favor
of direct function calls to dlpar_cpu_readd_by_index.
-- Revise code order in dlpar_cpu_readd_by_index() to present
more appropriate error codes from underlying layers of the
implementation.
-- Add hotplug device lock around all property updates
-- Schedule all CPU updates as workqueue operations
-- Rebase to 4.17-rc5 kernel
-- Various code cleanups and compaction
