From: Dan Williams <dan.j.williams@intel.com>
To: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
Andrew Morton <akpm@linux-foundation.org>,
Linux MM <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
linux-s390 <linux-s390@vger.kernel.org>,
Michal Hocko <mhocko@suse.com>,
Vladimir Davydov <vdavydov.dev@gmail.com>,
Ben Hutchings <ben@decadent.org.uk>,
Gerald Schaefer <gerald.schaefer@de.ibm.com>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Sebastian Ott <sebott@linux.vnet.ibm.com>
Subject: Re: [PATCH 1/2] mm: add private lock to serialize memory hotplug operations
Date: Mon, 13 Mar 2017 12:44:25 -0700 [thread overview]
Message-ID: <CAPcyv4i1phF5rZL--g6ojguHScKetNA3gfsZRpHhVw3VbgqmFg@mail.gmail.com> (raw)
In-Reply-To: <20170313185710.GA3422@osiris>
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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next prev parent reply other threads:[~2017-03-13 19:44 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-09 13:06 [PATCH 0/2] " Heiko Carstens
2017-03-09 13:06 ` [PATCH 1/2] " Heiko Carstens
2017-03-09 13:39 ` Rafael J. Wysocki
2017-03-09 18:10 ` Dan Williams
2017-03-09 22:15 ` Rafael J. Wysocki
2017-03-09 22:22 ` Rafael J. Wysocki
2017-03-09 22:37 ` Dan Williams
2017-03-09 22:43 ` Rafael J. Wysocki
2017-03-09 22:33 ` Dan Williams
2017-03-09 22:34 ` Rafael J. Wysocki
2017-03-13 18:57 ` Heiko Carstens
2017-03-13 19:44 ` Dan Williams [this message]
2017-03-13 21:15 ` Rafael J. Wysocki
2017-03-09 13:06 ` [PATCH 2/2] drivers core: remove assert_held_device_hotplug() Heiko Carstens
2017-03-09 19:11 ` Dan Williams
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