From 27868ddf260286d86c8e048934ffc7573d729702 Mon Sep 17 00:00:00 2001
From: Davanum Srinivas <dims@linux.vnet.ibm.com>
Date: Wed, 28 Nov 2012 15:35:30 -0500
Subject: [PATCH] Don't run the periodic task if ticks_between_runs is below
 zero

if the user sets say image_cache_manager_interval=-1, then
don't add the task to the list of periodic tasks

remove extra braces that i had added

DocImpact

Fixes LP #1084232

Change-Id: Ieecd67ddbc70b815a88f40e72ca2899787d75988
---
 nova/manager.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/nova/manager.py b/nova/manager.py
index 9a3e4a6757d..b1a1d471db3 100644
--- a/nova/manager.py
+++ b/nova/manager.py
@@ -125,8 +125,9 @@ def __init__(cls, names, bases, dict_):
             if getattr(value, '_periodic_task', False):
                 task = value
                 name = task.__name__
-                cls._periodic_tasks.append((name, task))
-                cls._ticks_to_skip[name] = task._ticks_between_runs
+                if task._ticks_between_runs >= 0:
+                    cls._periodic_tasks.append((name, task))
+                    cls._ticks_to_skip[name] = task._ticks_between_runs
 
 
 class Manager(base.Base):