SERVER-19041 Simplify SimpleMutex

2 files changed, 2 insertions, 2 deletions

diff --git a/src/mongo/db/repl/oplog.cpp b/src/mongo/db/repl/oplog.cpp
index 5b3d48fbc21..26708ee8de7 100644
--- a/src/mongo/db/repl/oplog.cpp
+++ b/src/mongo/db/repl/oplog.cpp
@@ -103,7 +103,7 @@ namespace {
 
     // Synchronizes the section where a new Timestamp is generated and when it actually
     // appears in the oplog.
-    mongo::mutex newOpMutex;
+    stdx::mutex newOpMutex;
     stdx::condition_variable newTimestampNotifier;
 
     static std::string _oplogCollectionName;
diff --git a/src/mongo/db/repl/sync_tail.cpp b/src/mongo/db/repl/sync_tail.cpp
index 545dea83f9d..2bfe05728fe 100644
--- a/src/mongo/db/repl/sync_tail.cpp
+++ b/src/mongo/db/repl/sync_tail.cpp
@@ -365,7 +365,7 @@ namespace {
         // We must grab this because we're going to grab write locks later.
         // We hold this mutex the entire time we're writing; it doesn't matter
         // because all readers are blocked anyway.
-        SimpleMutex::scoped_lock fsynclk(filesLockedFsync);
+        stdx::lock_guard<SimpleMutex> fsynclk(filesLockedFsync);
 
         // stop all readers until we're done
         Lock::ParallelBatchWriterMode pbwm(txn->lockState());