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SubjectRe: [PATCH] Make CONFIG_MIGRATION available for s390
Gerald Schaefer wrote:

> It seems to me that this policy_zone check in vma_migratable() is not
> called at all for the offline_pages() case, only for some NUMA system calls
> that we don't support on s390. As Yasunori Goto said, page isolation checks
> should do the job for memory hotremove via offline_pages(), independent from
> any policy_zone setting. Any more thoughts on this?

Please rename the function to vma_policy_migratable() and then create a new function
vma_migratable() that checks for migratability independent of memory policies.

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