From da29bd2cbe3e40d52f6bbd71ebcf642e34035605 Mon Sep 17 00:00:00 2001
From: Harry Zhang <resouer@gmail.com>
Date: Tue, 6 Mar 2018 00:18:11 -0800
Subject: [PATCH] Fix data race in node lifecycle controller

---
 pkg/controller/nodelifecycle/node_lifecycle_controller.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkg/controller/nodelifecycle/node_lifecycle_controller.go b/pkg/controller/nodelifecycle/node_lifecycle_controller.go
index a48a8965e3d..1a621d4c1cf 100644
--- a/pkg/controller/nodelifecycle/node_lifecycle_controller.go
+++ b/pkg/controller/nodelifecycle/node_lifecycle_controller.go
@@ -1042,6 +1042,8 @@ func (nc *Controller) ReducedQPSFunc(nodeNum int) float32 {
 
 // addPodEvictorForNewZone checks if new zone appeared, and if so add new evictor.
 func (nc *Controller) addPodEvictorForNewZone(node *v1.Node) {
+	nc.evictorLock.Lock()
+	defer nc.evictorLock.Unlock()
 	zone := utilnode.GetZoneKey(node)
 	if _, found := nc.zoneStates[zone]; !found {
 		nc.zoneStates[zone] = stateInitial