Messages in this thread | | | From | Wen Congyang <> | Subject | [PART4 Patch 0/2] memory-hotplug: allow online/offline memory to result movable node | Date | Wed, 31 Oct 2012 16:15:32 +0800 |
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From: Lai Jiangshan <laijs@cn.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(+)
-- 1.8.0
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