Messages in this thread | | | Date | Fri, 20 Jul 2012 16:31:23 +0900 | From | Yasuaki Ishimatsu <> | Subject | Re: [RFC PATCH 0/8] memory-hotplug : hot-remove physical memory(clear page table) |
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[Hi Wen,
Good news!! I was waiting for this patch to come. Applying the patches, can we hot-remove physical memory completely?
Thanks, Yasuaki Ishimatsu
2012/07/20 16:06, Wen Congyang wrote: > This patch series aims to support physical memory hot-remove(clear page table). > > This patch series base on ishimatsu's patch series. You can get it here: > http://www.spinics.net/lists/linux-acpi/msg36804.html > > The patches can remove following things: > - page table of removed memory > > If you find lack of function for physical memory hot-remove, please let me > know. > > Note: > * The patch "remove memory info from list before freeing it" is being disccussed > in other thread. But for testing the patch series, the patch is needed. > So I added the patch as [PATCH 0/8]. > * You need to apply ishimatsu's patch series first before applying this patch > series. > > Wen Congyang (8): > memory-hotplug: store the node id in acpi_memory_device > memory-hotplug: offline memory only when it is onlined > memory-hotplug: call remove_memory() to cleanup when removing memory > device > memory-hotplug: export the function acpi_bus_remove() > memory-hotplug: call acpi_bus_remove() to remove memory device > memory-hotplug: introduce new function arch_remove_memory() > x86: make __split_large_page() generally avialable > memory-hotplug: implement arch_remove_memory() > > arch/ia64/mm/init.c | 16 ++++ > arch/powerpc/mm/mem.c | 14 +++ > arch/s390/mm/init.c | 8 ++ > arch/sh/mm/init.c | 15 +++ > arch/tile/mm/init.c | 8 ++ > arch/x86/include/asm/pgtable_types.h | 1 + > arch/x86/mm/init_32.c | 10 ++ > arch/x86/mm/init_64.c | 160 ++++++++++++++++++++++++++++++++++ > arch/x86/mm/pageattr.c | 47 +++++----- > drivers/acpi/acpi_memhotplug.c | 24 ++++-- > drivers/acpi/scan.c | 3 +- > include/acpi/acpi_bus.h | 1 + > include/linux/memory_hotplug.h | 1 + > mm/memory_hotplug.c | 2 +- > 14 files changed, 280 insertions(+), 30 deletions(-) >
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