!7114 v2 backport patch for thp deferred list for 4.19

Merge Pull Request from: @ci-robot 
 
PR sync from: Wupeng Ma <mawupeng1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/H52VXA6AS3Z22LSBDZP3TGRHUKZ4YS7W/ 
From: Ma Wupeng <mawupeng1@huawei.com>

backport patch for thp deferred list for 4.19.

changelog since v1:
- remove data_race since 4.19 does not have it

Jianxing Wang (1):
  mm/mmu_gather: limit free batch count and add schedule point in
    tlb_batch_pages_flush

Kirill A. Shutemov (1):
  mm, thp: do not queue fully unmapped pages for deferred split

Yin Fengwei (1):
  THP: avoid lock when check whether THP is in deferred list


-- 
2.25.1
 
https://gitee.com/openeuler/kernel/issues/I9NU9F 
 
Link:https://gitee.com/openeuler/kernel/pulls/7114

 

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