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Date: Sat, 10 Jun 2017 22:33:56 +0800
From: Wei Yang <richard.weiyang@gmail.com>
Subject: Re: [PATCH] mm, memory_hotplug: support movable_node for hotplugable
 nodes
Message-ID: <20170610143356.GA3457@WeideMacBook-Pro.local>
Reply-To: Wei Yang <richard.weiyang@gmail.com>
References: <20170608122318.31598-1-mhocko@kernel.org>
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In-Reply-To: <20170608122318.31598-1-mhocko@kernel.org>
Sender: owner-linux-mm@kvack.org
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To: Michal Hocko <mhocko@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>, linux-mm@kvack.org, Mel Gorman <mgorman@suse.de>, Vlastimil Babka <vbabka@suse.cz>, Andrea Arcangeli <aarcange@redhat.com>, Reza Arbab <arbab@linux.vnet.ibm.com>, Yasuaki Ishimatsu <yasu.isimatu@gmail.com>, qiuxishi@huawei.com, Kani Toshimitsu <toshi.kani@hpe.com>, slaoub@gmail.com, Joonsoo Kim <js1304@gmail.com>, Andi Kleen <ak@linux.intel.com>, David Rientjes <rientjes@google.com>, Daniel Kiper <daniel.kiper@oracle.com>, Igor Mammedov <imammedo@redhat.com>, Vitaly Kuznetsov <vkuznets@redhat.com>, LKML <linux-kernel@vger.kernel.org>, Michal Hocko <mhocko@suse.com>


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On Thu, Jun 08, 2017 at 02:23:18PM +0200, Michal Hocko wrote:
>From: Michal Hocko <mhocko@suse.com>
>
>movable_node kernel parameter allows to make hotplugable NUMA
>nodes to put all the hotplugable memory into movable zone which
>allows more or less reliable memory hotremove.  At least this
>is the case for the NUMA nodes present during the boot (see
>find_zone_movable_pfns_for_nodes).
>
>This is not the case for the memory hotplug, though.
>
>	echo online > /sys/devices/system/memory/memoryXYZ/status
                                                           ^^^

Hmm, one typo I think

s/status/state/

--=20
Wei Yang
Help you, Help me

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