linux-kernel - Re: [RFC v9 PATCH 01/21] memory-hotplug: rename remove_memory() to offline_memory()/offline

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Date:	Fri, 28 Sep 2012 18:15:22 -0400
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
Cc:	Ni zhan Chen <nizhan.chen@...il.com>, wency@...fujitsu.com,
	x86@...nel.org, linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org, linux-acpi@...r.kernel.org,
	linux-s390@...r.kernel.org, linux-sh@...r.kernel.org,
	linux-ia64@...r.kernel.org, cmetcalf@...era.com,
	sparclinux@...r.kernel.org, rientjes@...gle.com, liuj97@...il.com,
	len.brown@...el.com, benh@...nel.crashing.org, paulus@...ba.org,
	cl@...ux.com, minchan.kim@...il.com, akpm@...ux-foundation.org
Subject: Re: [RFC v9 PATCH 01/21] memory-hotplug: rename remove_memory() to offline_memory()/offline_pages()

On Thu, Sep 27, 2012 at 11:50 PM, Yasuaki Ishimatsu
<isimatu.yasuaki@...fujitsu.com> wrote:
> Hi Chen,
>
>
> 2012/09/28 11:22, Ni zhan Chen wrote:
>>
>> On 09/05/2012 05:25 PM, wency@...fujitsu.com wrote:
>>>
>>> From: Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
>>>
>>> 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, and notify
>>> the userspace that the memory block's state is changed after offlining
>>> pages.
>>>
>>> So rename remove_memory() to offline_memory()/offline_pages(). And in
>>> the 1st case, offline_memory() will be used. The function
>>> offline_memory()
>>> is not implemented. In the 2nd case, offline_pages() will be used.
>>
>>
>> But this time there is not a function associated with add_memory.
>
>
> To associate with add_memory() later, we renamed it.

Then, you introduced bisect breakage. It is definitely unacceptable.

NAK.
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