!6752 [sync] PR-6677: v3  olk-5.10: bugfix for mm

Merge Pull Request from: @openeuler-sync-bot 
 

Origin pull request: 
https://gitee.com/openeuler/kernel/pulls/6677 
 
PR sync from: Wupeng Ma <mawupeng1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/F2VRDUQ6NU77XVWZ7ZJ63PSSBRJBGCO4/ 
From: Ma Wupeng <mawupeng1@huawei.com>

backport minor bugfix for mm.

Changelog since v2:
- fix style problem.

Changelog since v1:
- fix style problem.

Mel Gorman (1):
  mm/page_alloc: always attempt to allocate at least one page during
    bulk allocation

Miaohe Lin (1):
  mm/madvise: fix potential pte_unmap_unlock pte error


-- 
2.25.1
 
https://gitee.com/openeuler/kernel/issues/I9JPDJ 
 
Link:https://gitee.com/openeuler/kernel/pulls/6752 

Reviewed-by: Jialin Zhang <zhangjialin11@huawei.com> 
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>