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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>