From 406c72ce52ff86d21f11bf0b90c4df6e34dcfb63 Mon Sep 17 00:00:00 2001
From: Andrew Haley <aph@redhat.com>
Date: Mon, 12 Jan 2009 17:39:10 +0000
Subject: [PATCH] natUnsafe.cc (spinlock contructor): Call sched_yield().

2009-01-12  Andrew Haley  <aph@redhat.com>

	* sun/misc/natUnsafe.cc (spinlock contructor): Call sched_yield().

From-SVN: r143302
---
 libjava/ChangeLog             | 4 ++++
 libjava/sun/misc/natUnsafe.cc | 4 ++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/libjava/ChangeLog b/libjava/ChangeLog
index 72a075da3ee..ebef09f23ef 100644
--- a/libjava/ChangeLog
+++ b/libjava/ChangeLog
@@ -1,3 +1,7 @@
+2009-01-12  Andrew Haley  <aph@redhat.com>
+
+	* sun/misc/natUnsafe.cc (spinlock contructor): Call sched_yield().
+
 2009-01-11  Matthias Klose  <doko@ubuntu.com>
 
 	* Makefile.am (ecjx_LDADD): Add $(extra_ldflags).
diff --git a/libjava/sun/misc/natUnsafe.cc b/libjava/sun/misc/natUnsafe.cc
index cc57dd59889..0bd2d21eac5 100644
--- a/libjava/sun/misc/natUnsafe.cc
+++ b/libjava/sun/misc/natUnsafe.cc
@@ -1,6 +1,6 @@
 // natUnsafe.cc - Implementation of sun.misc.Unsafe native methods.
 
-/* Copyright (C) 2006
+/* Copyright (C) 2006, 2007
    Free Software Foundation
 
    This file is part of libgcj.
@@ -32,7 +32,7 @@ public:
 spinlock ()
   {
     while (! compare_and_swap (&lock, 0, 1))
-      ;
+      _Jv_ThreadYield ();
   }
   ~spinlock ()
   {