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SubjectRe: [PATCH] mm, memory_hotplug: support movable_node for hotplugable nodes
On Wed, Jun 14, 2017 at 11:07:31AM +0200, Vlastimil Babka wrote:
>On 06/14/2017 11:06 AM, Wei Yang wrote:
>> On Mon, Jun 12, 2017 at 08:45:02AM +0200, Michal Hocko wrote:
>>> On Mon 12-06-17 12:28:32, Wei Yang wrote:
>>>> 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).
>>>>>
>>>>
>>>> When movable_node is enabled, we would have overlapped zones, right?
>>>
>>> It won't based on this patch. See movable_pfn_range
>>
>> I did grep in source code, but not find movable_pfn_range.
>
>This patch is adding it.
>

Oops, what a shame.

>> Could you share some light on that?
>>
>>>

--
Wei Yang
Help you, Help me
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