--- a/hotspot/src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp	Fri Mar 23 15:28:24 2012 +0100
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp	Tue Mar 27 10:29:59 2012 +0200
@@ -940,10 +940,9 @@
     return _bytes_copied_during_gc;
   }
 
-  // Determine whether the next GC should be mixed. Called to determine
-  // whether to start mixed GCs or whether to carry on doing mixed
-  // GCs. The two action strings are used in the ergo output when the
-  // method returns true or false.
+  // Determine whether there are candidate regions so that the
+  // next GC should be mixed. The two action strings are used
+  // in the ergo output when the method returns true or false.
   bool next_gc_should_be_mixed(const char* true_action_str,
                                const char* false_action_str);
 

--- a/hotspot/src/share/vm/gc_interface/collectedHeap.cpp	Fri Mar 23 15:28:24 2012 +0100
+++ b/hotspot/src/share/vm/gc_interface/collectedHeap.cpp	Tue Mar 27 10:29:59 2012 +0200
@@ -333,7 +333,7 @@
 
   // Set the length first for concurrent GC.
   ((arrayOop)start)->set_length((int)len);
-  post_allocation_setup_common(Universe::intArrayKlassObj(), start, words);
+  post_allocation_setup_common(Universe::intArrayKlassObj(), start);
   DEBUG_ONLY(zap_filler_array(start, words, zap);)
 }
 
@@ -346,8 +346,7 @@
     fill_with_array(start, words, zap);
   } else if (words > 0) {
     assert(words == min_fill_size(), "unaligned size");
-    post_allocation_setup_common(SystemDictionary::Object_klass(), start,
-                                 words);
+    post_allocation_setup_common(SystemDictionary::Object_klass(), start);
   }
 }
 
@@ -477,7 +476,7 @@
     assert(ScavengeRootsInCode > 0, "must be");
     obj = common_mem_allocate_init(size, CHECK_NULL);
   }
-  post_allocation_setup_common(klass, obj, size);
+  post_allocation_setup_common(klass, obj);
   assert(Universe::is_bootstrapping() ||
          !((oop)obj)->blueprint()->oop_is_array(), "must not be an array");
   NOT_PRODUCT(Universe::heap()->check_for_bad_heap_word_value(obj, size));

--- a/hotspot/src/share/vm/gc_interface/collectedHeap.hpp	Fri Mar 23 15:28:24 2012 +0100
+++ b/hotspot/src/share/vm/gc_interface/collectedHeap.hpp	Tue Mar 27 10:29:59 2012 +0200
@@ -149,18 +149,14 @@
   inline static HeapWord* common_permanent_mem_allocate_init(size_t size, TRAPS);
 
   // Helper functions for (VM) allocation.
-  inline static void post_allocation_setup_common(KlassHandle klass,
-                                                  HeapWord* obj, size_t size);
+  inline static void post_allocation_setup_common(KlassHandle klass, HeapWord* obj);
   inline static void post_allocation_setup_no_klass_install(KlassHandle klass,
-                                                            HeapWord* objPtr,
-                                                            size_t size);
+                                                            HeapWord* objPtr);
 
-  inline static void post_allocation_setup_obj(KlassHandle klass,
-                                               HeapWord* obj, size_t size);
+  inline static void post_allocation_setup_obj(KlassHandle klass, HeapWord* obj);
 
   inline static void post_allocation_setup_array(KlassHandle klass,
-                                                 HeapWord* obj, size_t size,
-                                                 int length);
+                                                 HeapWord* obj, int length);
 
   // Clears an allocated object.
   inline static void init_obj(HeapWord* obj, size_t size);
@@ -368,9 +364,7 @@
   inline static oop permanent_obj_allocate_no_klass_install(KlassHandle klass,
                                                             int size,
                                                             TRAPS);
-  inline static void post_allocation_install_obj_klass(KlassHandle klass,
-                                                       oop obj,
-                                                       int size);
+  inline static void post_allocation_install_obj_klass(KlassHandle klass, oop obj);
   inline static oop permanent_array_allocate(KlassHandle klass, int size, int length, TRAPS);
 
   // Raw memory allocation facilities
@@ -664,9 +658,6 @@
     }
   }
 
-  // Allocate GCHeapLog during VM startup
-  static void initialize_heap_log();
-
   // Heap verification
   virtual void verify(bool allow_dirty, bool silent, VerifyOption option) = 0;
 

--- a/hotspot/src/share/vm/gc_interface/collectedHeap.inline.hpp	Fri Mar 23 15:28:24 2012 +0100
+++ b/hotspot/src/share/vm/gc_interface/collectedHeap.inline.hpp	Tue Mar 27 10:29:59 2012 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2012, 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
@@ -50,15 +50,13 @@
 // Inline allocation implementations.
 
 void CollectedHeap::post_allocation_setup_common(KlassHandle klass,
-                                                 HeapWord* obj,
-                                                 size_t size) {
-  post_allocation_setup_no_klass_install(klass, obj, size);
-  post_allocation_install_obj_klass(klass, oop(obj), (int) size);
+                                                 HeapWord* obj) {
+  post_allocation_setup_no_klass_install(klass, obj);
+  post_allocation_install_obj_klass(klass, oop(obj));
 }
 
 void CollectedHeap::post_allocation_setup_no_klass_install(KlassHandle klass,
-                                                           HeapWord* objPtr,
-                                                           size_t size) {
+                                                           HeapWord* objPtr) {
   oop obj = (oop)objPtr;
 
   assert(obj != NULL, "NULL object pointer");
@@ -71,8 +69,7 @@
 }
 
 void CollectedHeap::post_allocation_install_obj_klass(KlassHandle klass,
-                                                   oop obj,
-                                                   int size) {
+                                                   oop obj) {
   // These asserts are kind of complicated because of klassKlass
   // and the beginning of the world.
   assert(klass() != NULL || !Universe::is_fully_initialized(), "NULL klass");
@@ -101,9 +98,8 @@
 }
 
 void CollectedHeap::post_allocation_setup_obj(KlassHandle klass,
-                                              HeapWord* obj,
-                                              size_t size) {
-  post_allocation_setup_common(klass, obj, size);
+                                              HeapWord* obj) {
+  post_allocation_setup_common(klass, obj);
   assert(Universe::is_bootstrapping() ||
          !((oop)obj)->blueprint()->oop_is_array(), "must not be an array");
   // notify jvmti and dtrace
@@ -112,14 +108,13 @@
 
 void CollectedHeap::post_allocation_setup_array(KlassHandle klass,
                                                 HeapWord* obj,
-                                                size_t size,
                                                 int length) {
   // Set array length before setting the _klass field
   // in post_allocation_setup_common() because the klass field
   // indicates that the object is parsable by concurrent GC.
   assert(length >= 0, "length should be non-negative");
   ((arrayOop)obj)->set_length(length);
-  post_allocation_setup_common(klass, obj, size);
+  post_allocation_setup_common(klass, obj);
   assert(((oop)obj)->blueprint()->oop_is_array(), "must be an array");
   // notify jvmti and dtrace (must be after length is set for dtrace)
   post_allocation_notify(klass, (oop)obj);
@@ -256,7 +251,7 @@
   assert(!Universe::heap()->is_gc_active(), "Allocation during gc not allowed");
   assert(size >= 0, "int won't convert to size_t");
   HeapWord* obj = common_mem_allocate_init(size, CHECK_NULL);
-  post_allocation_setup_obj(klass, obj, size);
+  post_allocation_setup_obj(klass, obj);
   NOT_PRODUCT(Universe::heap()->check_for_bad_heap_word_value(obj, size));
   return (oop)obj;
 }
@@ -269,7 +264,7 @@
   assert(!Universe::heap()->is_gc_active(), "Allocation during gc not allowed");
   assert(size >= 0, "int won't convert to size_t");
   HeapWord* obj = common_mem_allocate_init(size, CHECK_NULL);
-  post_allocation_setup_array(klass, obj, size, length);
+  post_allocation_setup_array(klass, obj, length);
   NOT_PRODUCT(Universe::heap()->check_for_bad_heap_word_value(obj, size));
   return (oop)obj;
 }
@@ -283,7 +278,7 @@
   assert(size >= 0, "int won't convert to size_t");
   HeapWord* obj = common_mem_allocate_noinit(size, CHECK_NULL);
   ((oop)obj)->set_klass_gap(0);
-  post_allocation_setup_array(klass, obj, size, length);
+  post_allocation_setup_array(klass, obj, length);
 #ifndef PRODUCT
   const size_t hs = oopDesc::header_size()+1;
   Universe::heap()->check_for_non_bad_heap_word_value(obj+hs, size-hs);
@@ -293,7 +288,7 @@
 
 oop CollectedHeap::permanent_obj_allocate(KlassHandle klass, int size, TRAPS) {
   oop obj = permanent_obj_allocate_no_klass_install(klass, size, CHECK_NULL);
-  post_allocation_install_obj_klass(klass, obj, size);
+  post_allocation_install_obj_klass(klass, obj);
   NOT_PRODUCT(Universe::heap()->check_for_bad_heap_word_value((HeapWord*) obj,
                                                               size));
   return obj;
@@ -306,7 +301,7 @@
   assert(!Universe::heap()->is_gc_active(), "Allocation during gc not allowed");
   assert(size >= 0, "int won't convert to size_t");
   HeapWord* obj = common_permanent_mem_allocate_init(size, CHECK_NULL);
-  post_allocation_setup_no_klass_install(klass, obj, size);
+  post_allocation_setup_no_klass_install(klass, obj);
 #ifndef PRODUCT
   const size_t hs = oopDesc::header_size();
   Universe::heap()->check_for_bad_heap_word_value(obj+hs, size-hs);
@@ -322,7 +317,7 @@
   assert(!Universe::heap()->is_gc_active(), "Allocation during gc not allowed");
   assert(size >= 0, "int won't convert to size_t");
   HeapWord* obj = common_permanent_mem_allocate_init(size, CHECK_NULL);
-  post_allocation_setup_array(klass, obj, size, length);
+  post_allocation_setup_array(klass, obj, length);
   NOT_PRODUCT(Universe::heap()->check_for_bad_heap_word_value(obj, size));
   return (oop)obj;
 }

--- a/hotspot/src/share/vm/oops/klass.cpp	Fri Mar 23 15:28:24 2012 +0100
+++ b/hotspot/src/share/vm/oops/klass.cpp	Tue Mar 27 10:29:59 2012 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2012, 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
@@ -174,10 +174,9 @@
 }
 
 void Klass_vtbl::post_new_init_klass(KlassHandle& klass,
-                                     klassOop new_klass,
-                                     int size) const {
+                                     klassOop new_klass) const {
   assert(!new_klass->klass_part()->null_vtbl(), "Not a complete klass");
-  CollectedHeap::post_allocation_install_obj_klass(klass, new_klass, size);
+  CollectedHeap::post_allocation_install_obj_klass(klass, new_klass);
 }
 
 void* Klass_vtbl::operator new(size_t ignored, KlassHandle& klass,

--- a/hotspot/src/share/vm/oops/klass.hpp	Fri Mar 23 15:28:24 2012 +0100
+++ b/hotspot/src/share/vm/oops/klass.hpp	Tue Mar 27 10:29:59 2012 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2012, 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
@@ -149,7 +149,7 @@
   // by the shared "base_create" subroutines.
   //
   virtual void* allocate_permanent(KlassHandle& klass, int size, TRAPS) const = 0;
-  void post_new_init_klass(KlassHandle& klass, klassOop obj, int size) const;
+  void post_new_init_klass(KlassHandle& klass, klassOop obj) const;
 
   // Every subclass on which vtbl_value is called must include this macro.
   // Delay the installation of the klassKlass pointer until after the
@@ -160,7 +160,7 @@
     if (HAS_PENDING_EXCEPTION) return NULL;                                   \
     klassOop new_klass = ((Klass*) result)->as_klassOop();                    \
     OrderAccess::storestore();                                                \
-    post_new_init_klass(klass_klass, new_klass, size);                        \
+    post_new_init_klass(klass_klass, new_klass);                              \
     return result;                                                            \
   }