Message-ID: <50812E34.5020802@cn.fujitsu.com>
Date: Fri, 19 Oct 2012 18:40:52 +0800
From: Wen Congyang <wency@cn.fujitsu.com>
User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100413 Fedora/3.0.4-2.fc13 Thunderbird/3.0.4
MIME-Version: 1.0
To: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
CC: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
        linux-acpi@vger.kernel.org, liuj97@gmail.com, len.brown@intel.com,
        akpm@linux-foundation.org, kosaki.motohiro@jp.fujitsu.com,
        muneda.takahiro@jp.fujitsu.com, rjw@sisk.pl
Subject: Re: [PATCH v2 0/3] acpi,memory-hotplug : implement framework for
 hot removing memory
References: <1350641040-19434-1-git-send-email-wency@cn.fujitsu.com> <50812949.6040005@jp.fujitsu.com>
In-Reply-To: <50812949.6040005@jp.fujitsu.com>
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset=ISO-2022-JP
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 2298
Lines: 69

At 10/19/2012 06:19 PM, Yasuaki Ishimatsu Wrote:
> CCing Rafael, because he become ACPI Maintainer.
> 
> Hi Wen,
> 
> If you update the patch-set, please CCing Rafael from the next time.

OK.

Thanks
Wen Congyang

> 
> Thanks,
> Yasuaki Ishimatsu
> 
> 2012/10/19 19:03, wency@cn.fujitsu.com wrote:
>> From: Wen Congyang <wency@cn.fujitsu.com>
>>
>> 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
>> fails.
>>
>> 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:
>> https://lkml.org/lkml/2012/10/3/126
>>
>> 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
>>      acpi_memory_device
>>
>> Yasuaki Ishimatsu (1):
>>    acpi,memory-hotplug : add memory offline code to
>>      acpi_memory_device_remove()
>>
>>   drivers/acpi/acpi_memhotplug.c |   51 ++++++++++++++++++++++++++++++++--------
>>   1 files changed, 41 insertions(+), 10 deletions(-)
>>
> 
> 
> 

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/