Re: [PATCH 1/2] mm: add private lock to serialize memory hotplug operations

From: Dan Williams
Date: Mon Mar 13 2017 - 15:44:37 EST


On Mon, Mar 13, 2017 at 11:57 AM, Heiko Carstens
<heiko.carstens@xxxxxxxxxx> wrote:
> On Thu, Mar 09, 2017 at 11:34:44PM +0100, Rafael J. Wysocki wrote:
>> > The memory described by devm_memremap_pages() is never "onlined" to
>> > the core mm. We're only using arch_add_memory() to get a linear
>> > mapping and page structures. The rest of memory hotplug is skipped,
>> > and this ZONE_DEVICE memory is otherwise hidden from the core mm.
>>
>> OK, that should be fine then.
>
> So, does that mean that the patch is ok as it is? If so, it would be good
> to get an Ack from both, you and Dan, please.

Acked-by: Dan Williams <dan.j.williams@xxxxxxxxx>