lkml.org 
[lkml]   [2012]   [Jul]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC PATCH 0/8] memory-hotplug : hot-remove physical memory(clear page table)
[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(-)
>




\
 
 \ /
  Last update: 2012-07-20 10:02    [W:0.060 / U:0.144 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site