Empty directory of read-only attribute can be deleted

[wangchuanfang]

[root@localhost 11]# ls -la
total 4
drwxr-xr-x 2 root root 6 Aug 20 06:06 .
drwxr-xr-x 3 root root 4096 Aug 20 06:06 ..
[root@localhost 11]# pwd
/root/test/test_1/11
[root@localhost 11]# cat /sys/fs/redirfs/filters/roflt/paths
i:0:/root/test/test_1/11[root@localhost 11]# cd ../
[root@localhost test_1]# rm -fr 11
[root@localhost test_1]#