!2908 mm/migrate.c: fix potential indeterminate pte entry in migrate_vma_insert_page()

Merge Pull Request from: @ci-robot 
 
PR sync from: Tong Tiangen <tongtiangen@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/64W3AZSG2HXSPJ6VJUEN3WAOL5NQ7O7Z/ 
 
https://gitee.com/openeuler/kernel/issues/I8HVSL 
 
Link:https://gitee.com/openeuler/kernel/pulls/2908

 

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