debugfs: list_quota user
 user id     blocks    quota    limit      inodes    quota    limit
       0      13312        0        0           2        0        0
      34       1024        0        0           1        0        0
     100       2048       32       50           2       20       30
debugfs: list_quota group
group id     blocks    quota    limit      inodes    quota    limit
       0      16384        0        0           5        0        0
debugfs: get_quota user 0
 user id     blocks    quota    limit      inodes    quota    limit
       0      13312        0        0           2        0        0
debugfs: get_quota user 100
 user id     blocks    quota    limit      inodes    quota    limit
     100       2048       32       50           2       20       30
debugfs: get_quota user 34
 user id     blocks    quota    limit      inodes    quota    limit
      34       1024        0        0           1        0        0
debugfs: get_quota group 0
group id     blocks    quota    limit      inodes    quota    limit
       0      16384        0        0           5        0        0
debugfs: