Updated openstack/openstack
Project: openstack/cinder  ea9c59448e9f3d4652f8c7010965ffa25ca56804
null
GlusterFS: Synchronize additional operations

create_cloned_volume() and copy_volume_to_image() should also be
locked against other driver operations to prevent collisions
from concurrent updates of snapshot metadata or volume file data.

Closes-Bug: #1267983

Change-Id: Idd6158bfbe4dc049c33fa58b40d3d570fc244d01