Description of problem:
Creation of directories failed in samba share when mounted using non-root user
for distribute disperse volume.

Version-Release number of selected component (if applicable):
samba-4.11.6-104.el7rhgs.x86_64
glusterfs-6.0-30.1.el7rhgs.x86_64

How reproducible:
Always

Steps to Reproduce:
1. Create distribute-disperse volume
2. Do a cifs mount using the volume with non-root user
3. Try to create a directory in the share

Actual results:
create fails

Expected results:
create should succeed

Additional info:
error message:
mkdir: cannot create directory ‘/mnt/dist-cifs/vicky-fuse/test-non’: Permission denied

[2020-03-20 06:45:58.989471] E [MSGID: 122075] [ec-code.c:425:ec_code_space_create] 0-vicky-disperse-1: Unable to create a temporary file for the ec dynamic code [Permission denied]
[2020-03-20 06:45:58.990498] I [MSGID: 122068] [ec-code.c:1052:ec_code_detect] 0-vicky-disperse-0: Using 'sse' CPU extensions
[2020-03-20 06:45:58.990554] E [MSGID: 122075] [ec-code.c:425:ec_code_space_create] 0-vicky-disperse-0: Unable to create a temporary file for the ec dynamic code [Permission denied]


Note: This issue is not seen in other volume type.
This is not a regression.