From 673ddc9d77c12556d228be7cfc0fb4fe381d6bd4 Mon Sep 17 00:00:00 2001
From: Azat Khuzhin <a3at.mail@gmail.com>
Date: Tue, 14 Apr 2020 20:23:06 +0300
Subject: [PATCH] Drop superfluous locking for atomic in DirectoryMonitor

---
 src/Storages/Distributed/DirectoryMonitor.cpp | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/src/Storages/Distributed/DirectoryMonitor.cpp b/src/Storages/Distributed/DirectoryMonitor.cpp
index 01bf0798a63..d21c2eb0d4c 100644
--- a/src/Storages/Distributed/DirectoryMonitor.cpp
+++ b/src/Storages/Distributed/DirectoryMonitor.cpp
@@ -100,10 +100,7 @@ StorageDistributedDirectoryMonitor::~StorageDistributedDirectoryMonitor()
 {
     if (!quit)
     {
-        {
-            quit = true;
-            std::lock_guard lock{mutex};
-        }
+        quit = true;
         cond.notify_one();
         thread.join();
     }
@@ -122,10 +119,7 @@ void StorageDistributedDirectoryMonitor::shutdownAndDropAllData()
 {
     if (!quit)
     {
-        {
-            quit = true;
-            std::lock_guard lock{mutex};
-        }
+        quit = true;
         cond.notify_one();
         thread.join();
     }