Re: [PATCH 2/3] powerpc/pseries/mobility: prevent cpu hotplug during DT update

2019-06-13 Thread Gautham R Shenoy
Hello Nathan, On Wed, Jun 12, 2019 at 10:19 AM Nathan Lynch wrote: > > CPU online/offline code paths are sensitive to parts of the device > tree (various cpu node properties, cache nodes) that can be changed as > a result of a migration. > > Prevent CPU hotplug while the device tree potentially

[PATCH 2/3] powerpc/pseries/mobility: prevent cpu hotplug during DT update

2019-06-11 Thread Nathan Lynch
CPU online/offline code paths are sensitive to parts of the device tree (various cpu node properties, cache nodes) that can be changed as a result of a migration. Prevent CPU hotplug while the device tree potentially is inconsistent. Fixes: 410bccf97881 ("powerpc/pseries: Partition migration in