Re: [PATCH v6 05/15] 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 v6 05/15] memory-hotplug: introduce new function arch_remove_memory() for removing page table depends on architecture
- From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
- Date: Wed, 9 Jan 2013 14:50:31 -0800
- Cc: rientjes@xxxxxxxxxx, 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, glommer@xxxxxxxxxxxxx, 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: <1357723959-5416-6-git-send-email-tangchen@cn.fujitsu.com>
- List-id: <linux-ia64.vger.kernel.org>
- References: <1357723959-5416-1-git-send-email-tangchen@cn.fujitsu.com> <1357723959-5416-6-git-send-email-tangchen@cn.fujitsu.com>
On Wed, 9 Jan 2013 17:32:29 +0800
Tang Chen <tangchen@xxxxxxxxxxxxxx> 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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