On 10/23/2012 06:30 PM, we...@cn.fujitsu.com wrote:
From: Wen Congyang
The patchset doesn't support kernel memory hot-remove, correct? If the
answer is yes, you should point out in your patchset changelog.
The patch-set was divided from following thread's patch-set.
https://lkml.org/lkml
On 10/08/2012 01:23 PM, Wen Congyang wrote:
At 10/08/2012 12:37 PM, Andi Kleen Wrote:
Yasuaki Ishimatsu writes:
+ }
+
+ /*
+* We use 2M page, but we need to remove part of them,
+* so split 2M page to 4
On 10/04/2012 02:26 PM, Yasuaki Ishimatsu wrote:
Hi Chen,
Sorry for late reply.
2012/10/02 13:21, Ni zhan Chen wrote:
On 09/05/2012 05:25 PM, we...@cn.fujitsu.com wrote:
From: Yasuaki Ishimatsu
All pages of virtual mapping in removed memory cannot be freed,
since some pages
used as PGD
On 10/01/2012 11:03 AM, Yasuaki Ishimatsu wrote:
Hi Chen,
2012/09/29 11:15, Ni zhan Chen wrote:
On 09/05/2012 05:25 PM, we...@cn.fujitsu.com wrote:
From: Yasuaki Ishimatsu
The function get_page_bootmem() may be called more than one time to
the same
page. There is no need to set page's
On 09/05/2012 05:25 PM, we...@cn.fujitsu.com wrote:
From: Yasuaki Ishimatsu
All pages of virtual mapping in removed memory cannot be freed, since some pages
used as PGD/PUD includes not only removed memory but also other memory. So the
patch checks whether page can be freed or not.
How to chec
On 09/05/2012 05:25 PM, we...@cn.fujitsu.com wrote:
From: Wen Congyang
The function acpi_bus_remove() can remove a acpi device from acpi device.
IIUC, s/acpi device/acpi bus
When a acpi device is removed, we need to call this function to remove
the acpi device from acpi bus. So export th
On 10/01/2012 12:44 PM, Yasuaki Ishimatsu wrote:
Hi Chen,
2012/09/29 17:19, Ni zhan Chen wrote:
On 09/05/2012 05:25 PM, we...@cn.fujitsu.com wrote:
From: Wen Congyang
This patch series aims to support physical memory hot-remove.
The patches can free/remove the following things
On 09/05/2012 05:25 PM, we...@cn.fujitsu.com wrote:
From: Wen Congyang
This patch series aims to support physical memory hot-remove.
The patches can free/remove the following things:
- acpi_memory_info : [RFC PATCH 4/19]
- /sys/firmware/memmap/X/{end, start, typ
On 09/05/2012 05:25 PM, we...@cn.fujitsu.com wrote:
From: Wen Congyang
This patch series aims to support physical memory hot-remove.
The patches can free/remove the following things:
- acpi_memory_info : [RFC PATCH 4/19]
- /sys/firmware/memmap/X/{end, start, typ
On 09/05/2012 05:25 PM, we...@cn.fujitsu.com wrote:
From: Yasuaki Ishimatsu
The function get_page_bootmem() may be called more than one time to the same
page. There is no need to set page's type, private if the function is not
the first time called to the page.
Note: the patch is just optimiza
On 09/05/2012 05:25 PM, we...@cn.fujitsu.com wrote:
From: Yasuaki Ishimatsu
We should offline and remove memory when removing the memory device.
The memory device can be removed by 2 ways:
1. send eject request by SCI
2. echo 1 >/sys/bus/pci/devices/PNP0C80:XX/eject
In the 1st case, acpi_memor
On 09/11/2012 10:24 AM, Yasuaki Ishimatsu wrote:
Hi Wen,
2012/09/11 11:15, Wen Congyang wrote:
Hi, ishimatsu
At 09/05/2012 05:25 PM, we...@cn.fujitsu.com Wrote:
From: Yasuaki Ishimatsu
If system supports memory hot-remove, online_pages() may online
removed pages.
So online_pages() need to
On 09/05/2012 05:25 PM, we...@cn.fujitsu.com wrote:
From: Wen Congyang
The memory device has only one node id. Store the node id when
enable the memory device, and we can reuse it when removing the
memory device.
one question:
if use numa emulation, memory device will associated to one node o
On 09/05/2012 05:25 PM, we...@cn.fujitsu.com wrote:
From: Yasuaki Ishimatsu
remove_memory() only try to offline pages. It is called in two cases:
1. hot remove a memory device
2. echo offline >/sys/devices/system/memory/memoryXX/state
In the 1st case, we should also change memory block's state
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