From: Wen Congyang <wency@cn.fujitsu.com>
To: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, linux-acpi@vger.kernel.org,
linux-s390@vger.kernel.org, linux-sh@vger.kernel.org,
linux-ia64@vger.kernel.org, cmetcalf@tilera.com
Cc: len.brown@intel.com,
Yasuaki ISIMATU <isimatu.yasuaki@jp.fujitsu.com>,
paulus@samba.org, minchan.kim@gmail.com,
kosaki.motohiro@jp.fujitsu.com, rientjes@google.com,
cl@linux.com, akpm@linux-foundation.org, liuj97@gmail.com
Subject: [RFC PATCH v5 00/19] memory-hotplug: hot-remove physical memory
Date: Fri, 27 Jul 2012 18:20:51 +0800 [thread overview]
Message-ID: <50126B83.3050201@cn.fujitsu.com> (raw)
This patch series aims to support physical memory hot-remove.
The patches can free/remove following things:
- acpi_memory_info : [RFC PATCH 4/19]
- /sys/firmware/memmap/X/{end, start, type} : [RFC PATCH 8/19]
- iomem_resource : [RFC PATCH 9/19]
- mem_section and related sysfs files : [RFC PATCH 10-11, 13-16/19]
- page table of removed memory : [RFC PATCH 12/19]
- node and related sysfs files : [RFC PATCH 18-19/19]
If you find lack of function for physical memory hot-remove, please let me
know.
change log of v5:
* merge the patchset to clear page table and the patchset to hot remove
memory(from ishimatsu) to one big patchset.
[RFC PATCH v5 1/19]
* rename remove_memory() to offline_memory()/offline_pages()
[RFC PATCH v5 2/19]
* new patch: implement offline_memory(). This function offlines pages,
update memory block's state, and notify the userspace that the memory
block's state is changed.
[RFC PATCH v5 4/19]
* offline and remove memory in acpi_memory_disable_device() too.
[RFC PATCH v5 17/19]
* new patch: add a new function __remove_zone() to revert the things done
in the function __add_zone().
[RFC PATCH v5 18/19]
* flush work befor reseting node device.
change log of v4:
* remove "memory-hotplug : unify argument of firmware_map_add_early/hotplug"
from the patch series, since the patch is a bugfix. It is being disccussed
on other thread. But for testing the patch series, the patch is needed.
So I added the patch as [PATCH 0/13].
[RFC PATCH v4 2/13]
* check memory is online or not at remove_memory()
* add memory_add_physaddr_to_nid() to acpi_memory_device_remove() for
getting node id
[RFC PATCH v4 3/13]
* create new patch : check memory is online or not at online_pages()
[RFC PATCH v4 4/13]
* add __ref section to remove_memory()
* call firmware_map_remove_entry() before remove_sysfs_fw_map_entry()
[RFC PATCH v4 11/13]
* rewrite register_page_bootmem_memmap() for removing page used as PT/PMD
change log of v3:
* rebase to 3.5.0-rc6
[RFC PATCH v2 2/13]
* remove extra kobject_put()
* The patch was commented by Wen. Wen's comment is
"acpi_memory_device_remove() should ignore a return value of
remove_memory() since caller does not care the return value".
But I did not change it since I think caller should care the
return value. And I am trying to fix it as follow:
https://lkml.org/lkml/2012/7/5/624
[RFC PATCH v2 4/13]
* remove a firmware_memmap_entry allocated by kzmalloc()
change log of v2:
[RFC PATCH v2 2/13]
* check whether memory block is offline or not before calling offline_memory()
* check whether section is valid or not in is_memblk_offline()
* call kobject_put() for each memory_block in is_memblk_offline()
[RFC PATCH v2 3/13]
* unify the end argument of firmware_map_add_early/hotplug
[RFC PATCH v2 4/13]
* add release_firmware_map_entry() for freeing firmware_map_entry
[RFC PATCH v2 6/13]
* add release_memory_block() for freeing memory_block
[RFC PATCH v2 11/13]
* fix wrong arguments of free_pages()
Wen Congyang (5):
memory-hotplug: implement offline_memory()
memory-hotplug: store the node id in acpi_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()
Yasuaki Ishimatsu (14):
memory-hotplug: rename remove_memory() to
offline_memory()/offline_pages()
memory-hotplug: offline and remove memory when removing the memory
device
memory-hotplug: check whether memory is present or not
memory-hotplug: remove /sys/firmware/memmap/X sysfs
memory-hotplug: does not release memory region in PAGES_PER_SECTION
chunks
memory-hotplug: add memory_block_release
memory-hotplug: remove_memory calls __remove_pages
memory-hotplug: check page type in get_page_bootmem
memory-hotplug: move register_page_bootmem_info_node and
put_page_bootmem for sparse-vmemmap
memory-hotplug: implement register_page_bootmem_info_section of
sparse-vmemmap
memory-hotplug: free memmap of sparse-vmemmap
memory_hotplug: clear zone when the memory is removed
memory-hotplug: add node_device_release
memory-hotplug: remove sysfs file of node
arch/ia64/mm/init.c | 16 +
arch/powerpc/mm/mem.c | 14 +
arch/powerpc/platforms/pseries/hotplug-memory.c | 16 +-
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 | 333 ++++++++++++++++++++++
arch/x86/mm/pageattr.c | 47 ++--
drivers/acpi/acpi_memhotplug.c | 51 +++-
drivers/acpi/scan.c | 3 +-
drivers/base/memory.c | 90 ++++++-
drivers/base/node.c | 8 +
drivers/firmware/memmap.c | 78 +++++-
include/acpi/acpi_bus.h | 1 +
include/linux/firmware-map.h | 6 +
include/linux/memory.h | 5 +
include/linux/memory_hotplug.h | 25 +-
include/linux/mm.h | 5 +-
include/linux/mmzone.h | 19 ++
mm/memory_hotplug.c | 337 +++++++++++++++++++++--
mm/sparse.c | 5 +-
23 files changed, 1010 insertions(+), 91 deletions(-)
next reply other threads:[~2012-07-27 10:15 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-27 10:20 Wen Congyang [this message]
2012-07-27 10:22 ` [RFC PATCH 0/19] firmware_map : unify argument of firmware_map_add_early/hotplug Wen Congyang
2012-07-27 10:24 ` [PATCH 0.5/19] remove memory info from list before freeing it Wen Congyang
2012-07-27 10:25 ` [RFC PATCH v5 01/19] memory-hotplug: rename remove_memory() to offline_memory()/offline_pages() Wen Congyang
2012-07-27 10:26 ` [RFC PATCH v5 02/19] memory-hotplug: implement offline_memory() Wen Congyang
2012-07-27 10:27 ` [RFC PATCH v5 03/19] memory-hotplug: store the node id in acpi_memory_device Wen Congyang
2012-07-27 10:27 ` [RFC PATCH v5 04/19] memory-hotplug: offline and remove memory when removing the memory device Wen Congyang
2012-07-27 10:28 ` [RFC PATCH v5 05/19] memory-hotplug: check whether memory is present or not Wen Congyang
2012-07-27 20:17 ` Tony Luck
2012-07-30 1:57 ` Wen Congyang
2012-07-27 10:28 ` [RFC PATCH v5 06/19] memory-hotplug: export the function acpi_bus_remove() Wen Congyang
2012-07-27 10:29 ` [RFC PATCH v5 07/19] memory-hotplug: call acpi_bus_remove() to remove memory device Wen Congyang
2012-07-27 10:30 ` [RFC PATCH v5 08/19] memory-hotplug: remove /sys/firmware/memmap/X sysfs Wen Congyang
2012-07-27 10:30 ` [RFC PATCH v5 09/19] memory-hotplug: does not release memory region in PAGES_PER_SECTION chunks Wen Congyang
2012-07-27 10:31 ` [RFC PATCH v5 10/19] memory-hotplug: add memory_block_release Wen Congyang
2012-07-27 10:31 ` [RFC PATCH v5 11/19] memory-hotplug: remove_memory calls __remove_pages Wen Congyang
2012-07-27 10:32 ` [RFC PATCH v5 12/19] memory-hotplug: introduce new function arch_remove_memory() Wen Congyang
2012-07-30 10:23 ` Heiko Carstens
2012-07-30 10:35 ` Wen Congyang
2012-07-31 12:40 ` Gerald Schaefer
2012-08-01 1:42 ` Wen Congyang
2012-08-01 2:44 ` jencce zhou
2012-08-01 6:06 ` Wen Congyang
2012-07-27 10:32 ` [RFC PATCH v5 13/19] memory-hotplug: check page type in get_page_bootmem Wen Congyang
2012-07-27 10:33 ` [RFC PATCH v5 14/19] memory-hotplug: move register_page_bootmem_info_node and put_page_bootmem for sparse-vmemmap Wen Congyang
2012-07-27 10:34 ` [RFC PATCH v5 15/19] memory-hotplug: implement register_page_bootmem_info_section of sparse-vmemmap Wen Congyang
2012-07-27 10:34 ` [RFC PATCH v5 16/19] memory-hotplug: free memmap " Wen Congyang
2012-07-31 12:22 ` Gerald Schaefer
2012-08-01 6:09 ` Wen Congyang
2012-07-27 10:35 ` [RFC PATCH v5 17/19] memory_hotplug: clear zone when the memory is removed Wen Congyang
2012-07-27 10:35 ` [RFC PATCH v5 00/19] memory-hotplug: hot-remove physical memory Yasuaki Ishimatsu
2012-07-27 10:35 ` [RFC PATCH v5 18/19] memory-hotplug: add node_device_release Wen Congyang
2012-07-27 10:36 ` [RFC PATCH v5 19/19] memory-hotplug: remove sysfs file of node Wen Congyang
2012-07-27 10:45 ` Yasuaki Ishimatsu
2012-07-30 2:03 ` Wen Congyang
2012-07-30 3:47 ` Wen Congyang
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