--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/memory/freeBlockDictionary.cpp	Thu Mar 29 19:46:24 2012 -0700
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#ifndef SERIALGC
+#include "gc_implementation/concurrentMarkSweep/freeChunk.hpp"
+#endif // SERIALGC
+#include "memory/freeBlockDictionary.hpp"
+#ifdef TARGET_OS_FAMILY_linux
+# include "thread_linux.inline.hpp"
+#endif
+#ifdef TARGET_OS_FAMILY_solaris
+# include "thread_solaris.inline.hpp"
+#endif
+#ifdef TARGET_OS_FAMILY_windows
+# include "thread_windows.inline.hpp"
+#endif
+#ifdef TARGET_OS_FAMILY_bsd
+# include "thread_bsd.inline.hpp"
+#endif
+
+#ifndef PRODUCT
+template <class Chunk> Mutex* FreeBlockDictionary<Chunk>::par_lock() const {
+  return _lock;
+}
+
+template <class Chunk> void FreeBlockDictionary<Chunk>::set_par_lock(Mutex* lock) {
+  _lock = lock;
+}
+
+template <class Chunk> void FreeBlockDictionary<Chunk>::verify_par_locked() const {
+#ifdef ASSERT
+  if (ParallelGCThreads > 0) {
+    Thread* myThread = Thread::current();
+    if (myThread->is_GC_task_thread()) {
+      assert(par_lock() != NULL, "Should be using locking?");
+      assert_lock_strong(par_lock());
+    }
+  }
+#endif // ASSERT
+}
+#endif
+
+#ifndef SERIALGC
+// Explicitly instantiate for FreeChunk
+template class FreeBlockDictionary<FreeChunk>;
+#endif // SERIALGC