Description of problem:

On RHS2.1U1 (with samba-3.6.9-160.6.el6rhs.x86_64 version) , the home folder of the samba user (samba user is needed to mount the volume) automatically getting available through samba

I think this is caused because we have below entries in the default smb.conf

[homes]
        comment = Home Directories
        browseable = no
        writable = yes
;       valid users = %S
;       valid users = MYDOMAIN\%S
        

"testparm -s" also confirms the same

[root@rhsauto056 home]# testparm -s
Load smb config files from /etc/samba/smb.conf
rlimit_max: increasing rlimit_max (1024) to minimum Windows limit (16384)
Processing section "[homes]"
Processing section "[printers]"
Processing section "[gluster-dhtvol-1]"
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
	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

[homes]
	comment = Home Directories
	read only = No
	browseable = No

[printers]
	comment = All Printers
	path = /var/spool/samba
	printable = Yes
	print ok = Yes
	browseable = No

[gluster-dhtvol-1]
	comment = For samba share of volume dhtvol-1
	path = /
	read only = No
	guest ok = Yes
	vfs objects = glusterfs
	glusterfs:loglevel = 7
	glusterfs:logfile = /var/log/samba/glusterfs-dhtvol-1.log
	glusterfs:volume = dhtvol-1

Version-Release number of selected component (if applicable):
samba-3.6.9-160.6.el6rhs.x86_64

How reproducible:

Always

Steps to Reproduce:
1. Install latest ISO for rhs2.1 U1 . I used RHSS-2.1-20131101.n.0
2. Create gluster volume, start it. Start samba service
3. Add a samba user . 
   smbpasswd -s <smbuser>
3. see the avilable shares from the rhsnode in an Windows clients or on Linux client do "smbclient -L <rhsnode>" -U <sambauser>

Actual results:

Home folder of Samba is also available though smb 

Expected results:

From RHS point of view we should not be making the home folder of the user available through smb

Additional info: