From 66010b41033dd3c8ef05db21c1438344ad73af87 Mon Sep 17 00:00:00 2001
From: sdong <siying.d@fb.com>
Date: Thu, 18 May 2017 12:32:46 -0700
Subject: [PATCH] column_family_test: EnvCounter::num_new_writable_file_ to be
 atomic

Summary: TSAN shows warning of data race of EnvCounter::num_new_writable_file_. Make it atomic.

Test Plan: Run all tests.
---
 db/column_family_test.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/db/column_family_test.cc b/db/column_family_test.cc
index 7ebe0068bcf..1253df5de95 100644
--- a/db/column_family_test.cc
+++ b/db/column_family_test.cc
@@ -55,7 +55,7 @@ class EnvCounter : public EnvWrapper {
   }
 
  private:
-  int num_new_writable_file_;
+  std::atomic<int> num_new_writable_file_;
 };
 
 class ColumnFamilyTest : public testing::Test {