SERVER-42165 Replace uses of stdx::mutex with mongo::Mutex

1 files changed, 2 insertions, 2 deletions

diff --git a/src/mongo/db/s/active_shard_collection_registry.h b/src/mongo/db/s/active_shard_collection_registry.h
index da734aee1c9..91423d65d7c 100644
--- a/src/mongo/db/s/active_shard_collection_registry.h
+++ b/src/mongo/db/s/active_shard_collection_registry.h
@@ -32,8 +32,8 @@
 #include <boost/optional.hpp>
 #include <memory>
 
+#include "mongo/platform/mutex.h"
 #include "mongo/s/request_types/shard_collection_gen.h"
-#include "mongo/stdx/mutex.h"
 #include "mongo/util/concurrency/notification.h"
 #include "mongo/util/string_map.h"
 
@@ -108,7 +108,7 @@ private:
     void _setUUIDOrError(std::string nss, StatusWith<boost::optional<UUID>> swUUID);
 
     // Protects the state below
-    stdx::mutex _mutex;
+    Mutex _mutex = MONGO_MAKE_LATCH("ActiveShardCollectionRegistry::_mutex");
 
     // Map containing any collections currently being sharded
     StringMap<std::shared_ptr<ActiveShardCollectionState>> _activeShardCollectionMap;