Re: [PATCH] Memory hot added,The memory can not been added to movable zone

From: Vlastimil Babka
Date: Wed Aug 26 2015 - 02:12:48 EST

On 26.8.2015 2:36, Changsheng Liu wrote:
> å 2015/8/25 19:13, Vlastimil Babka åé:
>> On 08/25/2015 12:25 PM, Changsheng Liu wrote:
>>> Thanks very much for your review, I can move the memory from normal zone
>>> to movable zone succesfully.
>>> And thank you for let me understand the memory mechanism better.
>>> å 2015/8/25 3:15, Yasuaki Ishimatsu åé:
>> So you agree to drop the patch from -mm?
> The system add memory to normal zone defaultly so that it can be
> used by kernel and then we can not move the memory to movable zone.
> The patch can add the memory to movable zone directlly.

I thought that you confirmed that the following works?
echo online_movable > /sys/devices/system/memory/memoryXXX/state

If you want it to be the default, there's the node_movable kernel boot option.
Does it work for you?
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