Re: [PATCH v2 0/3] acpi,memory-hotplug : implement framework forhot removing memory
From: Wen Congyang
Date: Fri Oct 19 2012 - 20:44:41 EST
At 10/20/2012 12:32 AM, Rafael J. Wysocki Wrote:
> On Friday 19 of October 2012 18:03:57 wency@xxxxxxxxxxxxxx wrote:
>> From: Wen Congyang <wency@xxxxxxxxxxxxxx>
>> The patch-set implements a framework for hot removing memory.
>> 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_memory_disable_device() will be called.
>> In the 2nd case, acpi_memory_device_remove() will be called.
>> acpi_memory_device_remove() will also be called when we unbind the
>> memory device from the driver acpi_memhotplug or a driver initialization
>> acpi_memory_disable_device() has already implemented a code which
>> offlines memory and releases acpi_memory_info struct . But
>> acpi_memory_device_remove() has not implemented it yet.
>> So the patch prepares the framework for hot removing memory and
>> adds the framework into acpi_memory_device_remove().
>> The last version of this patchset is here:
>> Changelos from v1 to v2:
>> Patch1: use acpi_bus_trim() instead of acpi_bus_remove()
>> Patch2: new patch, introduce a lock to protect the list
>> Patch3: remove memory too when type is ACPI_BUS_REMOVAL_NORMAL
>> Note: I don't send [Patch2-4 v1] in this series because they
>> are no logical changes in these 3 patches.
>> Wen Congyang (2):
>> acpi,memory-hotplug: call acpi_bus_trim() to remove memory device
>> acpi,memory-hotplug: introduce a mutex lock to protect the list in
>> Yasuaki Ishimatsu (1):
>> acpi,memory-hotplug : add memory offline code to
>> drivers/acpi/acpi_memhotplug.c | 51 ++++++++++++++++++++++++++++++++--------
>> 1 files changed, 41 insertions(+), 10 deletions(-)
> Can you please tell me what kernel is the series supposed to apply to?
> Is it the current Linus' tree, or linux-next, or something else?
Current Linux's tree.
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