linux-kernel - Re: [PATCH 2/2] acpi,memory-hotplug : call acpi_bus

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Message-ID: <5080B1CD.6030008@cn.fujitsu.com>
Date:	Fri, 19 Oct 2012 09:50:05 +0800
From:	Wen Congyang <wency@...fujitsu.com>
To:	Yinghai Lu <yinghai@...nel.org>
CC:	Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>,
	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, len.brown@...el.com
Subject: Re: [PATCH 2/2] acpi,memory-hotplug : call acpi_bus_remo() to remove
 memory device

At 10/04/2012 10:41 AM, Yinghai Lu Wrote:
> On Wed, Oct 3, 2012 at 6:48 PM, Yasuaki Ishimatsu
> <isimatu.yasuaki@...fujitsu.com> wrote:
>> From: Wen Congyang <wency@...fujitsu.com>
>>
>> The memory device has been ejected and powoffed, so we can call
>> acpi_bus_remove() to remove the memory device from acpi bus.
>>
>> CC: Len Brown <len.brown@...el.com>
>> Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
>> Signed-off-by: Wen Congyang <wency@...fujitsu.com>
>> ---
>>  drivers/acpi/acpi_memhotplug.c |    3 ++-
>>  1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> Index: linux-3.6/drivers/acpi/acpi_memhotplug.c
>> ===================================================================
>> --- linux-3.6.orig/drivers/acpi/acpi_memhotplug.c       2012-10-03 18:17:47.802249170 +0900
>> +++ linux-3.6/drivers/acpi/acpi_memhotplug.c    2012-10-03 18:17:52.471250299 +0900
>> @@ -424,8 +424,9 @@ static void acpi_memory_device_notify(ac
>>                 }
>>
>>                 /*
>> -                * TBD: Invoke acpi_bus_remove to cleanup data structures
>> +                * Invoke acpi_bus_remove() to remove memory device
>>                  */
>> +               acpi_bus_remove(device, 1);
> 
> why not using acpi_bus_trim instead?

Sorry for late reply. It's OK to use acpi_bus_trim(), and I will
update this patch soon.

Thanks
Wen Congyang

> 
> Yinghai
> 

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