Merge "Fix eventlet.tpool import" into stable/xena

Author: Zuul

nova/utils.py

@@ -29,6 +29,7 @@
 import tempfile
 
 import eventlet
+from eventlet import tpool
 from keystoneauth1 import loading as ks_loading
 import netaddr
 from openstack import connection
@@ -684,7 +685,7 @@ def context_wrapper(*args, **kwargs):
 
 def tpool_execute(func, *args, **kwargs):
     """Run func in a native thread"""
-    eventlet.tpool.execute(func, *args, **kwargs)
+    tpool.execute(func, *args, **kwargs)
 
 
 def is_none_string(val):