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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