!4059 ext4: synchronize the casefold bugfix from the mainline

Merge Pull Request from: @ci-robot 
 
PR sync from: Baokun Li <libaokun1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/CAO6ZIABNYPJK6ZTM3FIU6P4KN4NHMP5/ 
Eric Biggers (1):
  ext4: reject casefold inode flag without casefold feature

Theodore Ts'o (1):
  ext4: improve error handling from ext4_dirhash()


-- 
2.31.1
 
https://gitee.com/openeuler/kernel/issues/I8WZXW 
 
Link:https://gitee.com/openeuler/kernel/pulls/4059

 

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