diff --git a/libjava/ChangeLog b/libjava/ChangeLog
index 2c0a0f7c11e..16c457b3f99 100644
--- a/libjava/ChangeLog
+++ b/libjava/ChangeLog
@@ -1,3 +1,7 @@
+2007-01-22  Andrew Haley  <aph@redhat.com>
+
+	* sysdep/alpha/locks.h (write_barrier): New.
+
 2007-01-21  Matthias Klose  <doko@debian.org>
 
 	* Makefile.am (install-exec-hook): Use transformed name.
diff --git a/libjava/sysdep/alpha/locks.h b/libjava/sysdep/alpha/locks.h
index 1c20249cce3..c5f7f4993e6 100644
--- a/libjava/sysdep/alpha/locks.h
+++ b/libjava/sysdep/alpha/locks.h
@@ -50,4 +50,12 @@ compare_and_swap_release(volatile obj_addr_t *addr,
   return compare_and_swap(addr, old, new_val);
 }
 
+// Ensure that prior stores to memory are completed with respect to other
+// processors.
+inline static void
+write_barrier()
+{
+  __asm__ __volatile__("wmb" : : : "memory");
+}
+
 #endif