Description of problem:

Setting "user.cifs" to disable for a volume used to remove the configuration settings for the volume from smb.conf, so that the Samba share is not available any-more. However it is not working  in latest RPMs.  

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

glusterfs-3.6.0.33-1.el6rhs.x86_64 and glusterfs-3.6.0.34-1.el6rhs.x86_64

How reproducible:
Always

Steps to Reproduce:
1. create a volume and start it
2. check "testparm -s" output. it should have the volume config
3. gluster volume set <volume> user.cifs disable
4. check "testparm -s" output. it should not have the volume config

Actual results:

Volume info present in smb.conf

Expected results:

After running "volume set <volume> user.cifs disable" smb.conf should not have the volume info.

Additional info:

[root@rhsauto056 ~]# gluster volume set testvol user.cifs disable
volume set: success

[root@rhsauto056 ~]# gluster v info
 
Volume Name: testvol
Type: Distribute
Volume ID: 01be3bf8-da56-4a41-99f3-102996438870
Status: Started
Snap Volume: no
Number of Bricks: 2
Transport-type: tcp
Bricks:
Brick1: 10.70.40.131:/bricks/testvol-b1
Brick2: 10.70.40.131:/bricks/testvol-b2
Options Reconfigured:
user.cifs: disable
performance.readdir-ahead: on
snap-max-hard-limit: 256
snap-max-soft-limit: 90
auto-delete: disable


#testparm -s
Load smb config files from /etc/samba/smb.conf
rlimit_max: increasing rlimit_max (1024) to minimum Windows limit (16384)
Can't find include file /etc/samba/ctdb.conf
Processing section "[gluster-testvol]"
Loaded services file OK.
WARNING: You have some share names that are longer than 12 characters.
These may not be accessible to some older clients.
(Eg. Windows9x, WindowsMe, and smbclient prior to Samba 3.0.)
Server role: ROLE_STANDALONE
[global]
	workgroup = MYGROUP
	server string = Samba Server Version %v
	log file = /var/log/samba/log.%m
	max log size = 50
	max protocol = SMB2
	ctdbd socket = /tmp/ctdb.socket
	load printers = No
	disable spoolss = Yes
	show add printer wizard = No
	stat cache = No
	kernel oplocks = No
	idmap config * : backend = tdb
	printing = bsd
	cups options = raw
	print command = lpr -r -P'%p' %s
	lpq command = lpq -P'%p'
	lprm command = lprm -P'%p' %j
	map archive = No
	map readonly = no
	store dos attributes = Yes

[gluster-testvol]
	comment = For samba share of volume testvol
	path = /
	read only = No
	guest ok = Yes
	vfs objects = glusterfs
	glusterfs:loglevel = 7
	glusterfs:logfile = /var/log/samba/glusterfs-testvol.%M.log
	glusterfs:volume = testvol