features/quota: Remember '/' loc_t to initiate xattr calls.
features/quota: Remember '/' loc_t to initiate xattr calls.

Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 685 (writing to a file fails complaining of "Transport endpoint not being connected")
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=685

Kaushikbv/Gluster,Kaushikbv/Gluster,Kaushikbv/Gluster