From 49f4f242a8fd1ff5b4d5e73dda3948005a529f63 Mon Sep 17 00:00:00 2001
From: zhangke <zhangke909@qq.com>
Date: Mon, 16 May 2016 15:26:30 +0800
Subject: [PATCH] Update lookup_cache.go

MatchingCache struct hold a RWLock, so Get operation of Cache should use RLock properly, nor WLock
---
 pkg/controller/lookup_cache.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkg/controller/lookup_cache.go b/pkg/controller/lookup_cache.go
index 5d82908be01..3c43e1e3008 100644
--- a/pkg/controller/lookup_cache.go
+++ b/pkg/controller/lookup_cache.go
@@ -72,8 +72,8 @@ func (c *MatchingCache) Add(labelObj objectWithMeta, selectorObj objectWithMeta)
 // we need check in the external request to ensure the cache data is not dirty.
 func (c *MatchingCache) GetMatchingObject(labelObj objectWithMeta) (controller interface{}, exists bool) {
 	key := keyFunc(labelObj)
-	c.mutex.Lock()
-	defer c.mutex.Unlock()
+	c.mutex.RLock()
+	defer c.mutex.RUnlock()
 	return c.cache.Get(key)
 }