From c8f1826185ec59831a8085d61ed9aa16e3a31464 Mon Sep 17 00:00:00 2001
From: Ted Yu <yuzhihong@gmail.com>
Date: Sat, 26 Jan 2019 13:06:21 -0800
Subject: [PATCH] Use read lock for scheduler_binder_cache GetDecisions

---
 .../volume/persistentvolume/scheduler_binder_cache.go         | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkg/controller/volume/persistentvolume/scheduler_binder_cache.go b/pkg/controller/volume/persistentvolume/scheduler_binder_cache.go
index f67644f8914..96b573afa24 100644
--- a/pkg/controller/volume/persistentvolume/scheduler_binder_cache.go
+++ b/pkg/controller/volume/persistentvolume/scheduler_binder_cache.go
@@ -74,8 +74,8 @@ func NewPodBindingCache() PodBindingCache {
 }
 
 func (c *podBindingCache) GetDecisions(pod *v1.Pod) nodeDecisions {
-	c.rwMutex.Lock()
-	defer c.rwMutex.Unlock()
+	c.rwMutex.RLock()
+	defer c.rwMutex.RUnlock()
 	podName := getPodName(pod)
 	decisions, ok := c.bindingDecisions[podName]
 	if !ok {