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

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Message-Id: <20160810184357.GB12039@arbab-laptop.austin.ibm.com>
Date:	Wed, 10 Aug 2016 13:43:58 -0500
From:	Reza Arbab <arbab@...ux.vnet.ibm.com>
To:	Michael Ellerman <mpe@...erman.id.au>
Cc:	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>,
	Nathan Fontenot <nfont@...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 Wed, Aug 10, 2016 at 08:30:28PM +1000, Michael Ellerman wrote:
>Reza Arbab <arbab@...ux.vnet.ibm.com> writes:
>> Node hotplug is not supported on power [1].
>
>But maybe it should be?

Doing so will involve, at the very least, reverting the commit I cited, 
3af229f2071f ("powerpc/numa: Reset node_possible_map to only 
node_online_map"), and fixing that issue in a different way.

I'll look into it and see what I can do.

-- 
Reza Arbab