Re: [PATCH v5 05/14] memory-hotplug: introduce new function arch_remove_memory() for removing page table depends on architecture
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- To: Tang Chen <tangchen@xxxxxxxxxxxxxx>
- Subject: Re: [PATCH v5 05/14] memory-hotplug: introduce new function arch_remove_memory() for removing page table depends on architecture
- From: Kamezawa Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
- Date: Wed, 26 Dec 2012 12:37:04 +0900
- Cc: akpm@xxxxxxxxxxxxxxxxxxxx, rientjes@xxxxxxxxxx, liuj97@xxxxxxxxx, len.brown@xxxxxxxxx, benh@xxxxxxxxxxxxxxxxxxx, paulus@xxxxxxxxx, cl@xxxxxxxxx, minchan.kim@xxxxxxxxx, kosaki.motohiro@xxxxxxxxxxxxxx, isimatu.yasuaki@xxxxxxxxxxxxxx, wujianguo@xxxxxxxxxx, wency@xxxxxxxxxxxxxx, hpa@xxxxxxxxx, linfeng@xxxxxxxxxxxxxx, laijs@xxxxxxxxxxxxxx, mgorman@xxxxxxx, yinghai@xxxxxxxxxx, x86@xxxxxxxxxx, linux-mm@xxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-acpi@xxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, cmetcalf@xxxxxxxxxx, sparclinux@xxxxxxxxxxxxxxx
- In-reply-to: <1356350964-13437-6-git-send-email-tangchen@cn.fujitsu.com>
- List-id: <linux-ia64.vger.kernel.org>
- References: <1356350964-13437-1-git-send-email-tangchen@cn.fujitsu.com> <1356350964-13437-6-git-send-email-tangchen@cn.fujitsu.com>
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(2012/12/24 21:09), Tang Chen wrote:
> From: Wen Congyang <wency@xxxxxxxxxxxxxx>
>
> For removing memory, we need to remove page table. But it depends
> on architecture. So the patch introduce arch_remove_memory() for
> removing page table. Now it only calls __remove_pages().
>
> Note: __remove_pages() for some archtecuture is not implemented
> (I don't know how to implement it for s390).
>
> Signed-off-by: Wen Congyang <wency@xxxxxxxxxxxxxx>
Then, remove code will be symetric to add codes.
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
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