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

From Heiko Carstens <heiko.carstens@de.ibm.com>
Newsgroups linux.kernel
Subject Re: [PATCH 1/2] mm: add private lock to serialize memory hotplug operations
Date 2017-03-13 20:00 +0100
Message-ID <tkDmi-4GD-13@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>
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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.

Thanks,
Heiko

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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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