samba - Sep 2010 - fstab configuration for extended attributes

I have extended attributes in my fstab set with the following options:
/dv/md0 /mnt/raid ext4 auto,errors=remount-ro,user_xattr 0 2

 

Aside from the "user_xattr" flag, do I have to set any other options
to save
extended attribute or file permissions information correctly to my share?  I
am running Samba 3.4.7 under Ubuntu 10.04 server.

 

Derek