Explicitly pass ev_loop for DRBD job creation.

cloudcontrol/node/hypervisor/__init__.py

@@ -626,7 +626,8 @@ class Handler(HostHandler):
             raise DRBDError('Cannot setup DRBD: volume does not exist')
 
         try:
-            job = self.main.job_manager.create(DRBD, self.hypervisor.storage,
+            job = self.main.job_manager.create(DRBD, self.main.evloop,
+                                               self.hypervisor.storage,
                                                pool, volume)
         except Exception:
             logger.exception('Error while creating DRBD job')