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

[Wen Congyang]

From: Lai Jiangshan <laijs@xxxxxxxxxxxxxx>

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(+)

-- 
1.8.0

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