quota/(f)truncate: pass correct delta for updating parent sizes after successful completion.
quota/(f)truncate: pass correct delta for updating parent sizes after successful completion.

Signed-off-by: Raghavendra G <raghavendra@gluster.com>
Signed-off-by: Anand Avati <avati@gluster.com>

BUG: 2741 (Quota: new files not getting created even if space is available)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2741

Kaushikbv/Gluster,Kaushikbv/Gluster,Kaushikbv/Gluster