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

Hi Andrew,

On 01/10/2013 06:50 AM, Andrew Morton wrote:

On Wed, 9 Jan 2013 17:32:29 +0800
Tang Chen[off-list ref]  wrote:

quoted

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. :)