CHANGE: http://review.gluster.org/4224 (object-storage: use temp file optimization for pkl) merged in master by Vijay Bellur (vbellur)
CHANGE: http://review.gluster.org/4287 (object-storage: a set of cleanups to DiskFile) merged in master by Vijay Bellur (vbellur)
CHANGE: http://review.gluster.org/4288 (object-storage: apply upstream DiskFile refactor) merged in master by Vijay Bellur (vbellur)
CHANGE: http://review.gluster.org/4325 (object-storage: use temp file optimization) merged in master by Vijay Bellur (vbellur)
Fixed in upstream master.