linux-kernel - Re: [PART4 Patch 0/2] memory-hotplug: allow online/offline memory to result movable node

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Message-ID: <50A4BCF9.7080401@jp.fujitsu.com>
Date:	Thu, 15 Nov 2012 18:59:21 +0900
From:	Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
To:	Wen Congyang <wency@...fujitsu.com>
CC:	<linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>,
	<linux-doc@...r.kernel.org>, Rob Landley <rob@...dley.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Jiang Liu <jiang.liu@...wei.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Minchan Kim <minchan.kim@...il.com>,
	Mel Gorman <mgorman@...e.de>,
	David Rientjes <rientjes@...gle.com>,
	Yinghai Lu <yinghai@...nel.org>,
	"rusty@...tcorp.com.au" <rusty@...tcorp.com.au>
Subject: Re: [PART4 Patch 0/2] memory-hotplug: allow online/offline memory
 to result movable node

2012/10/31 17:15, Wen Congyang wrote:
> From: Lai Jiangshan <laijs@...fujitsu.com>
> 
> This patch is part4 of the following patchset:
>      https://lkml.org/lkml/2012/10/29/319
> 
> Part1 is here:
>      https://lkml.org/lkml/2012/10/31/30
> 
> Part2 is here:
>      http://marc.info/?l=linux-kernel&m=135166705909544&w=2
> 
> Part3 is here:
>      http://marc.info/?l=linux-kernel&m=135167050510527&w=2
> 
> You must apply part1-3 before applying this patchset.
> 
> we need a node which only contains movable memory. This feature is very
> important for node hotplug. If a node has normal/highmem, the memory
> may be used by the kernel and can't be offlined. If the node only contains
> movable memory, we can offline the memory and the node.
> 
> 
> Lai Jiangshan (2):
>    numa: add CONFIG_MOVABLE_NODE for movable-dedicated node
>    memory_hotplug: allow online/offline memory to result movable node
> 
>   drivers/base/node.c      |  6 ++++++
>   include/linux/nodemask.h |  4 ++++
>   mm/Kconfig               |  8 ++++++++
>   mm/memory_hotplug.c      | 16 ++++++++++++++++
>   mm/page_alloc.c          |  3 +++
>   5 files changed, 37 insertions(+)
> 

Tested-by: Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>

Thanks,
Yasuaki Ishimatsu

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