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Date: Thu, 10 Jan 2013 10:25:56 +0800
From: Tang Chen <tangchen@cn.fujitsu.com>
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To: Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH v6 05/15] memory-hotplug: introduce new function
 arch_remove_memory() for removing page table depends on architecture
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Hi Andrew,

On 01/10/2013 06:50 AM, Andrew Morton wrote:
> On Wed, 9 Jan 2013 17:32:29 +0800
> Tang Chen<tangchen@cn.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?

No, I don't think so. The arch_remove_memory() in s390 will only
return -EBUSY.

Thanks. :)

>
>
>