linux-kernel - Re: [PATCH v5 05/14] memory-hotplug: introduce new function arch_remove_memory() for removing page table depends on architecture

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Date:	Wed, 26 Dec 2012 12:37:04 +0900
From:	Kamezawa Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	Tang Chen <tangchen@...fujitsu.com>
CC:	akpm@...ux-foundation.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,
	kosaki.motohiro@...fujitsu.com, isimatu.yasuaki@...fujitsu.com,
	wujianguo@...wei.com, wency@...fujitsu.com, hpa@...or.com,
	linfeng@...fujitsu.com, laijs@...fujitsu.com, mgorman@...e.de,
	yinghai@...nel.org, 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
Subject: Re: [PATCH v5 05/14] memory-hotplug: introduce new function arch_remove_memory()
 for removing page table depends on architecture

(2012/12/24 21:09), Tang Chen wrote:
> From: Wen Congyang <wency@...fujitsu.com>
> 
> 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@...fujitsu.com>

Then, remove code will be symetric to add codes.

Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>



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