Description of problem:

Using /etc/cgconfig.conf to create cgroups and set permissions on those groups does not set proper permissions for the gid.  The cgconfig.conf man page says in the "permissions" section:

      task user/group  Name  of  the  user  and the group, which owns
                       tasks file of the  control  group.  I.e.  this
                       user  and  members  of  this  group  has write
                       access to the file.

      admin user/group Name of the user and the group, which owns the
                       rest of control group's files. These users are
                       allowed to set subsystem parameters and create
                       subgroups.

So specifically I would expect the gid to have write access to the directory and files.


Version-Release number of selected component (if applicable):

libcgroup-0.37.1-4.fc16.x86_64
libcgroup-tools-0.37.1-4.fc16.x86_64

How reproducible:

very

Steps to Reproduce:
1. Create /etc/cgconfig.conf with user/group names.
  
Actual results:

$ cat /etc/cgconfig.conf
mount {
    cpuset  = /cgroup/cpuset;
}

group . {
    perm {
        task {
            uid = root;
            gid = cg;
        }
        admin {
            uid = root;
            gid = cg;
        }
    }
    cpuset {
    }
}

$ ls -ld /cgroup/cpuset
drwxr-xr-x 3 root cg 0 Dec  2 11:27 /cgroup/cpuset

$ ls -l /cgroup/cpuset/
total 0
-rw-r--r-- 1 root cg 0 Dec  2 11:27 cgroup.clone_children
--w--w--w- 1 root cg 0 Dec  2 11:27 cgroup.event_control
-rw-r--r-- 1 root cg 0 Dec  2 11:27 cgroup.procs
-rw-r--r-- 1 root cg 0 Dec  2 11:27 cpuset.cpu_exclusive
-rw-r--r-- 1 root cg 0 Dec  2 11:27 cpuset.cpus
-rw-r--r-- 1 root cg 0 Dec  2 11:27 cpuset.mem_exclusive
-rw-r--r-- 1 root cg 0 Dec  2 11:27 cpuset.mem_hardwall
-rw-r--r-- 1 root cg 0 Dec  2 11:27 cpuset.memory_migrate
-r--r--r-- 1 root cg 0 Dec  2 11:27 cpuset.memory_pressure
-rw-r--r-- 1 root cg 0 Dec  2 11:27 cpuset.memory_pressure_enabled
-rw-r--r-- 1 root cg 0 Dec  2 11:27 cpuset.memory_spread_page
-rw-r--r-- 1 root cg 0 Dec  2 11:27 cpuset.memory_spread_slab
-rw-r--r-- 1 root cg 0 Dec  2 11:27 cpuset.mems
-rw-r--r-- 1 root cg 0 Dec  2 11:27 cpuset.sched_load_balance
-rw-r--r-- 1 root cg 0 Dec  2 11:27 cpuset.sched_relax_domain_level
-rw-r--r-- 1 root cg 0 Dec  2 11:27 notify_on_release
-rw-r--r-- 1 root cg 0 Dec  2 11:27 release_agent
-rw-r--r-- 1 root cg 0 Dec  2 11:27 tasks

Expected results:

In example above group "cg" should have write access in addition to the user root.