--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/cmsOopClosures.hpp	Fri Mar 28 14:03:11 2014 +0100
+++ b/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/cmsOopClosures.hpp	Fri Mar 28 14:15:03 2014 +0100
@@ -116,10 +116,6 @@
   MarkRefsIntoClosure(MemRegion span, CMSBitMap* bitMap);
   virtual void do_oop(oop* p);
   virtual void do_oop(narrowOop* p);
-
-  Prefetch::style prefetch_style() {
-    return Prefetch::do_read;
-  }
 };
 
 class Par_MarkRefsIntoClosure: public CMSOopsInGenClosure {
@@ -132,10 +128,6 @@
   Par_MarkRefsIntoClosure(MemRegion span, CMSBitMap* bitMap);
   virtual void do_oop(oop* p);
   virtual void do_oop(narrowOop* p);
-
-  Prefetch::style prefetch_style() {
-    return Prefetch::do_read;
-  }
 };
 
 // A variant of the above used in certain kinds of CMS
@@ -152,10 +144,6 @@
                             CMSBitMap* cms_bm);
   virtual void do_oop(oop* p);
   virtual void do_oop(narrowOop* p);
-
-  Prefetch::style prefetch_style() {
-    return Prefetch::do_read;
-  }
 };
 
 // The non-parallel version (the parallel version appears further below).
@@ -181,10 +169,6 @@
   virtual void do_oop(narrowOop* p);
   inline void do_oop_nv(oop* p)       { PushAndMarkClosure::do_oop_work(p); }
   inline void do_oop_nv(narrowOop* p) { PushAndMarkClosure::do_oop_work(p); }
-
-  Prefetch::style prefetch_style() {
-    return Prefetch::do_read;
-  }
 };
 
 // In the parallel case, the bit map and the
@@ -211,10 +195,6 @@
   virtual void do_oop(narrowOop* p);
   inline void do_oop_nv(oop* p)       { Par_PushAndMarkClosure::do_oop_work(p); }
   inline void do_oop_nv(narrowOop* p) { Par_PushAndMarkClosure::do_oop_work(p); }
-
-  Prefetch::style prefetch_style() {
-    return Prefetch::do_read;
-  }
 };
 
 // The non-parallel version (the parallel version appears further below).
@@ -245,9 +225,6 @@
   inline void do_oop_nv(oop* p)       { MarkRefsIntoAndScanClosure::do_oop_work(p); }
   inline void do_oop_nv(narrowOop* p) { MarkRefsIntoAndScanClosure::do_oop_work(p); }
 
-  Prefetch::style prefetch_style() {
-    return Prefetch::do_read;
-  }
   void set_freelistLock(Mutex* m) {
     _freelistLock = m;
   }
@@ -282,9 +259,6 @@
   inline void do_oop_nv(oop* p)       { Par_MarkRefsIntoAndScanClosure::do_oop_work(p); }
   inline void do_oop_nv(narrowOop* p) { Par_MarkRefsIntoAndScanClosure::do_oop_work(p); }
 
-  Prefetch::style prefetch_style() {
-    return Prefetch::do_read;
-  }
   void trim_queue(uint size);
 };
 

--- a/hotspot/src/share/vm/memory/genOopClosures.hpp	Fri Mar 28 14:03:11 2014 +0100
+++ b/hotspot/src/share/vm/memory/genOopClosures.hpp	Fri Mar 28 14:15:03 2014 +0100
@@ -115,9 +115,6 @@
   virtual void do_oop(narrowOop* p);
   inline void do_oop_nv(oop* p);
   inline void do_oop_nv(narrowOop* p);
-  Prefetch::style prefetch_style() {
-    return Prefetch::do_write;
-  }
 };
 
 // Closure for scanning DefNewGeneration.
@@ -137,9 +134,6 @@
   virtual void do_oop(narrowOop* p);
   inline void do_oop_nv(oop* p);
   inline void do_oop_nv(narrowOop* p);
-  Prefetch::style prefetch_style() {
-    return Prefetch::do_write;
-  }
 };
 
 class KlassScanClosure: public KlassClosure {

--- a/hotspot/src/share/vm/memory/iterator.hpp	Fri Mar 28 14:03:11 2014 +0100
+++ b/hotspot/src/share/vm/memory/iterator.hpp	Fri Mar 28 14:15:03 2014 +0100
@@ -27,7 +27,6 @@
 
 #include "memory/allocation.hpp"
 #include "memory/memRegion.hpp"
-#include "runtime/prefetch.hpp"
 #include "utilities/top.hpp"
 
 class CodeBlob;
@@ -84,11 +83,6 @@
 
   virtual void do_class_loader_data(ClassLoaderData* cld) { ShouldNotReachHere(); }
 
-  // Controls how prefetching is done for invocations of this closure.
-  Prefetch::style prefetch_style() { // Note that this is non-virtual.
-    return Prefetch::do_none;
-  }
-
   // True iff this closure may be safely applied more than once to an oop
   // location without an intervening "major reset" (like the end of a GC).
   virtual bool idempotent() { return false; }