linux-kernel - Re: [PATCH v6 05/15] memory-hotplug: introduce new function arch_remove_memory() for removing page table depends on architecture

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Message-Id: <20130109145031.210505d0.akpm@linux-foundation.org>
Date:	Wed, 9 Jan 2013 14:50:31 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Tang Chen <tangchen@...fujitsu.com>
Cc:	rientjes@...gle.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, glommer@...allels.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
Subject: Re: [PATCH v6 05/15] memory-hotplug: introduce new function
 arch_remove_memory() for removing page table depends on architecture

On Wed, 9 Jan 2013 17:32:29 +0800
Tang Chen <tangchen@...fujitsu.com> wrote:

> 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).

Can this break the build for s390?


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