linux-kernel - Re: [PATCH 0/4] powerpc/mm: movable hotplug memory nodes

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Message-Id: <76b4ef23-be57-8138-8117-77531750539e@linux.vnet.ibm.com>
Date:	Wed, 10 Aug 2016 09:39:05 -0500
From:	Nathan Fontenot <nfont@...ux.vnet.ibm.com>
To:	Michael Ellerman <mpe@...erman.id.au>,
	Reza Arbab <arbab@...ux.vnet.ibm.com>,
	Rob Herring <robh+dt@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Jonathan Corbet <corbet@....net>,
	Bharata B Rao <bharata@...ux.vnet.ibm.com>,
	devicetree@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	linux-doc@...r.kernel.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/4] powerpc/mm: movable hotplug memory nodes

On 08/10/2016 05:30 AM, Michael Ellerman wrote:
> Reza Arbab <arbab@...ux.vnet.ibm.com> writes:
> 
>> These changes enable onlining memory into ZONE_MOVABLE on power, and the
>> creation of discrete nodes of movable memory.
>>
>> Node hotplug is not supported on power [1].
> 
> But maybe it should be?
> 
Yes, it should be supported.

I have briefly looked into this recently only to find
this will not be a simple update.

-Nathan