!3528 Print rootfs and tmpfs files charged by memcg

Merge Pull Request from: @ci-robot 
 
PR sync from: Jinjiang Tu <tujinjiang@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/GJQIQ3ZLNXH55W6UTVX7IJN3LTNHOH2J/ 
Support to print rootfs files and tmpfs files that having pages charged
in given memory cgroup. The files infomations can be printed through
interface "memory.memfs_files_info" or printed when OOM is triggered.

Jinjiang Tu (1):
  fs: move {lock, unlock}_mount_hash to fs/mount.h

Liu Shixin (2):
  mm/memcg_memfs_info: show files that having pages charged in
    mem_cgroup
  config: enable CONFIG_MEMCG_MEMFS_INFO by default


-- 
2.25.1
 
https://gitee.com/openeuler/kernel/issues/I8PWEP 
 
Link:https://gitee.com/openeuler/kernel/pulls/3528

 

Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: zhangyi (F) <yi.zhang@huawei.com>
Reviewed-by: Zhang Jianhua <chris.zjh@huawei.com>
Reviewed-by: Zucheng Zheng <zhengzucheng@huawei.com>
Reviewed-by: Liu Chao <liuchao173@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>