From b43a787783a0b58fb75d55d542567b74c94d5616 Mon Sep 17 00:00:00 2001
From: Patrick Gartung <gartung@fnal.gov>
Date: Tue, 12 Nov 2013 14:21:23 -0600
Subject: [PATCH] make static into member data

---
 RecoVertex/KalmanVertexFit/interface/SimpleVertexTree.h | 1 +
 RecoVertex/KalmanVertexFit/src/SimpleVertexTree.cc      | 1 -
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/RecoVertex/KalmanVertexFit/interface/SimpleVertexTree.h b/RecoVertex/KalmanVertexFit/interface/SimpleVertexTree.h
index 792a68423c350..7947ed202d12c 100644
--- a/RecoVertex/KalmanVertexFit/interface/SimpleVertexTree.h
+++ b/RecoVertex/KalmanVertexFit/interface/SimpleVertexTree.h
@@ -106,6 +106,7 @@ class SimpleVertexTree {
   int maxTrack;
   TString* parameterNames[5];
   TrackAssociatorByChi2 * associatorForParamAtPca;
+  std::atomic<int> nFill{0};
 };
 #endif
 
diff --git a/RecoVertex/KalmanVertexFit/src/SimpleVertexTree.cc b/RecoVertex/KalmanVertexFit/src/SimpleVertexTree.cc
index 31089fbc9a91b..0ec3891bf5dbe 100644
--- a/RecoVertex/KalmanVertexFit/src/SimpleVertexTree.cc
+++ b/RecoVertex/KalmanVertexFit/src/SimpleVertexTree.cc
@@ -172,7 +172,6 @@ void SimpleVertexTree::fill()
   //
   // fill entry
   //
-  static int nFill(0);
   vertexTree->GetDirectory()->cd();
   vertexTree->Fill();
   if ( (++nFill)%1000==0 )  vertexTree->AutoSave();