Fix storage pool attributes

Was using a closure for tag function thus storage variable was always
referencing the last value of the iteration.

cloudcontrol/node/hypervisor/__init__.py

@@ -85,12 +85,14 @@ class Handler(HostHandler):
         # register hypervisor storage tags
         for name, storage in self.hypervisor.storage.storages.iteritems():
             self.tag_db.add_tags((
-                Tag('sto%s_state' % name, lambda: storage.state, 5, 5),
-                Tag('sto%s_size' % name, lambda: storage.capacity, 5, 5),
-                Tag('sto%s_free' % name, lambda: storage.available, 5, 5),
+                Tag('sto%s_state' % name, lambda sto: sto.state, 5, 5, storage),
+                Tag('sto%s_size' % name,
+                    lambda sto: sto.capacity, 5, 5, storage),
+                Tag('sto%s_free' % name,
+                    lambda sto: sto.available, 5, 5, storage),
                 Tag('sto%s_used' % name,
-                    lambda: storage.capacity - storage.available, 5, 5),
-                Tag('sto%s_type' % name, lambda: storage.type, 5, 5),
+                    lambda sto: sto.capacity - sto.available, 5, 5, storage),
+                Tag('sto%s_type' % name, lambda sto: sto.type, 5, 5, storage),
             ))
 
         # register domains