[PATCH 3/4] powerpc/mm: allow memory hotplug into a memoryless node

Reza Arbab arbab at linux.vnet.ibm.com
Sat Aug 13 03:24:03 AEST 2016

On Fri, Aug 12, 2016 at 11:50:43AM +1000, Balbir Singh wrote:
>On 09/08/16 04:27, Reza Arbab wrote:
>> Remove the check which prevents us from hotplugging into an empty node.
>Do we want to do this only for ibm,hotplug-aperture compatible ranges?

We could, but since past discussions and current testing have been 
unable to justify preventing hotplug to a memoryless node in the first 
place, I'm inclined to keep things simple.

If some edge case is discovered, making it conditional as you describe 
will be a good solution.

Thanks for your review! A v2 of this set is pending my investigation of 
Michael's suggestion to get node hotadd working.

Reza Arbab

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