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

From Dan Williams <dan.j.williams@intel.com>
Newsgroups linux.kernel
Subject Re: [PATCH 1/2] mm: add private lock to serialize memory hotplug operations
Date 2017-03-13 20:50 +0100
Message-ID <tkE8G-5gy-17@gated-at.bofh.it> (permalink)
References <tj5Zo-5Ce-15@gated-at.bofh.it> <tjeJk-2Zj-13@gated-at.bofh.it> <tjeT0-32y-19@gated-at.bofh.it> <tjf2G-363-11@gated-at.bofh.it> <tkDmi-4GD-13@gated-at.bofh.it>
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On Mon, Mar 13, 2017 at 11:57 AM, Heiko Carstens
<heiko.carstens@de.ibm.com> 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@intel.com>

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Thread

[PATCH 1/2] mm: add private lock to serialize memory hotplug operations Heiko Carstens <heiko.carstens@de.ibm.com> - 2017-03-09 14:10 +0100
  Re: [PATCH 1/2] mm: add private lock to serialize memory hotplug operations "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-09 14:50 +0100
    Re: [PATCH 1/2] mm: add private lock to serialize memory hotplug operations Dan Williams <dan.j.williams@intel.com> - 2017-03-09 19:20 +0100
      Re: [PATCH 1/2] mm: add private lock to serialize memory hotplug operations "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-09 23:30 +0100
        Re: [PATCH 1/2] mm: add private lock to serialize memory hotplug operations Dan Williams <dan.j.williams@intel.com> - 2017-03-09 23:40 +0100
          Re: [PATCH 1/2] mm: add private lock to serialize memory hotplug operations "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-09 23:50 +0100
      Re: [PATCH 1/2] mm: add private lock to serialize memory hotplug operations "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-09 23:30 +0100
        Re: [PATCH 1/2] mm: add private lock to serialize memory hotplug operations Dan Williams <dan.j.williams@intel.com> - 2017-03-09 23:40 +0100
          Re: [PATCH 1/2] mm: add private lock to serialize memory hotplug operations "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-09 23:50 +0100
            Re: [PATCH 1/2] mm: add private lock to serialize memory hotplug  operations Heiko Carstens <heiko.carstens@de.ibm.com> - 2017-03-13 20:00 +0100
              Re: [PATCH 1/2] mm: add private lock to serialize memory hotplug operations Dan Williams <dan.j.williams@intel.com> - 2017-03-13 20:50 +0100
                Re: [PATCH 1/2] mm: add private lock to serialize memory hotplug operations "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-13 22:30 +0100

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