Description of problem:
The child directory created within parent directory ( on which the quota is set ) shows the entire volume size, when checked with "df" command.

Version-Release number of selected component (if applicable):glusterfs-3.4.0.44rhs-1.el6rhs.x86_64 


How reproducible:Always


Steps to Reproduce:
1.Configure 2x2 volume
2.Enable quota and set deem-statfs to on
3.Set Limit usage to 200MB and soft limit to 80 or 90% on say /test directory
4.Mount the volume on a client, Create subdirectory under /test and run df command to the subdirectory

Actual results:

# gluster volume quota test_data list
                  Path                   Hard-limit Soft-limit Used  Available
--------------------------------------------------------------------------------
/test                                    200.0MB       90% 0Bytes 200.0MB      <----------------quota set on /test 200MB

# df -h /quota_test/test/
Filesystem                Size  Used Avail Use% Mounted on
10.65.211.178:/test_data  200M     0  200M   0% /quota_test      <---------------correct info for /test , 200MB

[root@dhcp210-101 /]# df -h /quota_test/test/test123
Filesystem                Size  Used Avail Use% Mounted on
10.65.211.178:/test_data  896M   33M  863M   4% /quota_test  <-------------------- Incorrect information for a child directory inside /test/test123 , it is showing 863M , that is the size of entire volume. 



Expected results:

df -h /quota_test/test/
Filesystem                Size  Used Avail Use% Mounted on
10.65.211.178:/test_data  200M     0  200M   0% /quota_test 

# df -h /quota_test/test/test123
Filesystem                Size  Used Avail Use% Mounted on
10.65.211.178:/test_data  200M     0  200M   0% /quota_test 

Additional info:
In the commit message of the quota patch. (Commit ID on upstream master ab3ab1978a4768e9eed8e23b47e72b25046e607a)

"If limit is set on the directory passed, use size/limits on that directory to populate statvfs. Otherwise, use size/limits configured on root."

But customer needs this logic to be changed, where anything under the directory where quota is set also returns quota limit via statvfs.