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

[Lai Jiangshan]

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@xxxxxxxxxx>
Cc: Minchan Kim <minchan.kim@xxxxxxxxx>
CC: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
CC: Yasuaki Ishimatsu <isimatu.yasuaki@xxxxxxxxxxxxxx>
CC: Rob Landley <rob@xxxxxxxxxxx>
CC: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
CC: Jiang Liu <jiang.liu@xxxxxxxxxx>
CC: Kay Sievers <kay.sievers@xxxxxxxx>
CC: Greg Kroah-Hartman <gregkh@xxxxxxx>
CC: Mel Gorman <mgorman@xxxxxxx>
CC: 'FNST-Wen Congyang' <wency@xxxxxxxxxxxxxx>
CC: linux-doc@xxxxxxxxxxxxxxx
CC: linux-kernel@xxxxxxxxxxxxxxx
CC: linux-mm@xxxxxxxxx

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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