linux-kernel - [PATCH 0/2 V2] memory_hotplug: fix memory hotplug bug

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Message-Id: <1351071840-5060-1-git-send-email-laijs@cn.fujitsu.com>
Date:	Wed, 24 Oct 2012 17:43:50 +0800
From:	Lai Jiangshan <laijs@...fujitsu.com>
To:	linux-kernel@...r.kernel.org
Cc:	Lai Jiangshan <laijs@...fujitsu.com>,
	David Rientjes <rientjes@...gle.com>,
	Minchan Kim <minchan.kim@...il.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>,
	Rob Landley <rob@...dley.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jiang Liu <jiang.liu@...wei.com>,
	Kay Sievers <kay.sievers@...y.org>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Mel Gorman <mgorman@...e.de>,
	"'FNST-Wen Congyang'" <wency@...fujitsu.com>,
	linux-doc@...r.kernel.org, linux-mm@...ck.org
Subject: [PATCH 0/2 V2] memory_hotplug: fix memory hotplug bug

We found 2 bugs while we test and develop memory hotplug.

The hotplug code does not handle node_states[N_NORMAL_MEMORY] correctly,
it may corrupt the memory.

And we ensure the SLUB do NOT respond when node_states[N_NORMAL_MEMORY]
is not changed.

The patchset is based on mainline(3d0ceac129f3ea0b125289055a3aa7519d38df77)


CC: David Rientjes <rientjes@...gle.com>
Cc: Minchan Kim <minchan.kim@...il.com>
CC: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
CC: Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
CC: Rob Landley <rob@...dley.net>
CC: Andrew Morton <akpm@...ux-foundation.org>
CC: Jiang Liu <jiang.liu@...wei.com>
CC: Kay Sievers <kay.sievers@...y.org>
CC: Greg Kroah-Hartman <gregkh@...e.de>
CC: Mel Gorman <mgorman@...e.de>
CC: 'FNST-Wen Congyang' <wency@...fujitsu.com>
CC: linux-doc@...r.kernel.org
CC: linux-kernel@...r.kernel.org
CC: linux-mm@...ck.org

Lai Jiangshan (2):
  memory_hotplug: fix possible incorrect node_states[N_NORMAL_MEMORY]
  slub, hotplug: ignore unrelated node's hot-adding and hot-removing

 Documentation/memory-hotplug.txt |    5 +-
 include/linux/memory.h           |    1 +
 mm/memory_hotplug.c              |  136 +++++++++++++++++++++++++++++++++-----
 mm/slub.c                        |    4 +-
 4 files changed, 127 insertions(+), 19 deletions(-)

-- 
1.7.4.4

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