From 8f0acd949be2c01c445e402ae81421d4554f7d2b Mon Sep 17 00:00:00 2001
Date: Fri, 13 Dec 2019 12:02:23 +0000
Subject: [PATCH] PS GC: adding acquire_size method for
 PSParallelCompact::mark_obj.

Summary: GC: adding acquire_size method for PSParallelCompact::mark_obj.
LLT: NA
Bug url:
---
 .../share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp | 2 +-
 hotspot/src/share/vm/oops/oop.hpp                                     | 1 +
 hotspot/src/share/vm/oops/oop.inline.hpp                              | 4 ++++
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/hotspot/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp b/hotspot/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp
index 881f380cea..f971383a09 100644
--- a/hotspot/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp
+++ b/hotspot/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp
@@ -1326,7 +1326,7 @@ class PSParallelCompact : AllStatic {
 };
 
 inline bool PSParallelCompact::mark_obj(oop obj) {
-  const int obj_size = obj->size();
+  const int obj_size = obj->acquire_size();
   if (mark_bitmap()->mark_obj(obj, obj_size)) {
     _summary_data.add_obj(obj, obj_size);
     return true;
diff --git a/hotspot/src/share/vm/oops/oop.hpp b/hotspot/src/share/vm/oops/oop.hpp
index 142ab2769c..42ad9307f7 100644
--- a/hotspot/src/share/vm/oops/oop.hpp
+++ b/hotspot/src/share/vm/oops/oop.hpp
@@ -123,6 +123,7 @@ class oopDesc {
 
   // Returns the actual oop size of the object
   int size();
+  int acquire_size();
 
   // Sometimes (for complicated concurrency-related reasons), it is useful
   // to be able to figure out the size of an object knowing its klass.
diff --git a/hotspot/src/share/vm/oops/oop.inline.hpp b/hotspot/src/share/vm/oops/oop.inline.hpp
index b519d86118..803080c9e7 100644
--- a/hotspot/src/share/vm/oops/oop.inline.hpp
+++ b/hotspot/src/share/vm/oops/oop.inline.hpp
@@ -839,6 +839,10 @@ inline int oopDesc::size()  {
   return size_given_klass(klass());
 }
 
+inline int oopDesc::acquire_size()  {
+  return size_given_klass(klass_or_null_acquire());
+}
+
 inline void update_barrier_set(void* p, oop v, bool release = false) {
   assert(oopDesc::bs() != NULL, "Uninitialized bs in oop!");
   oopDesc::bs()->write_ref_field(p, v, release);
-- 
2.12.3