1 files changed, 3 insertions, 3 deletions
diff --git a/src/mongo/util/concurrency/mutex.h b/src/mongo/util/concurrency/mutex.h
index 8ce3f1217c3..1e6de16c715 100644
--- a/src/mongo/util/concurrency/mutex.h
+++ b/src/mongo/util/concurrency/mutex.h
@@ -135,7 +135,7 @@ namespace mongo {
 #if defined(_WIN32)
     class SimpleMutex : boost::noncopyable {
     public:
-        SimpleMutex( const StringData& ) { InitializeCriticalSection( &_cs ); }
+        SimpleMutex( StringData ) { InitializeCriticalSection( &_cs ); }
         void dassertLocked() const { }
         void lock() { EnterCriticalSection( &_cs ); }
         void unlock() { LeaveCriticalSection( &_cs ); }
@@ -154,7 +154,7 @@ namespace mongo {
     class SimpleMutex : boost::noncopyable {
     public:
         void dassertLocked() const { }
-        SimpleMutex(const StringData& name) { verify( pthread_mutex_init(&_lock,0) == 0 ); }
+        SimpleMutex(StringData name) { verify( pthread_mutex_init(&_lock,0) == 0 ); }
         ~SimpleMutex(){ 
             if ( ! StaticObserver::_destroyingStatics ) { 
                 verify( pthread_mutex_destroy(&_lock) == 0 ); 
@@ -182,7 +182,7 @@ namespace mongo {
      */
     class RecursiveMutex : boost::noncopyable {
     public:
-        RecursiveMutex(const StringData& name) : m(name) { }
+        RecursiveMutex(StringData name) : m(name) { }
         bool isLocked() const { return n.get() > 0; }
         class scoped_lock : boost::noncopyable {
             RecursiveMutex& rm;