!4209 dhugetlb: skip unexpected migration

Merge Pull Request from: @ci-robot 
 
PR sync from: Liu Shixin <liushixin2@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/TDESCVUSVJUFTUXYCQLMQOZF7PSOFJUZ/ 
Fix unexpected migration of pages from dynamic hugetlb pool.

Liu Shixin (2):
  dhugetlb: introduce page_belong_to_dynamic_hugetlb() function
  dhugetlb: skip unexpected migration


-- 
2.25.1
 
https://gitee.com/openeuler/kernel/issues/I8YWPT 
 
Link:https://gitee.com/openeuler/kernel/pulls/4209

 

Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Liu YongQiang <liuyongqiang13@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>