src/share/vm/runtime/thread.cpp

rev 8362 : CMS fence eliding using fancy synchronization when using UseCondCardMark

*** 269,278 ****
--- 269,279 ----
      assert(this == _real_malloc_address ||
             this == (void*) align_size_up((intptr_t) _real_malloc_address, markOopDesc::biased_lock_alignment),
             "bug in forced alignment of thread objects");
    }
  #endif // ASSERT
+   _serialization_page = NULL;
  }
  
  // Non-inlined version to be used where thread.inline.hpp shouldn't be included.
  Thread* Thread::current_noinline() {
    return Thread::current();
*** 366,375 ****
--- 367,383 ----
      ThreadLocalStorage::invalidate_all();
    }
    CHECK_UNHANDLED_OOPS_ONLY(if (CheckUnhandledOops) delete unhandled_oops();)
  }
  
+ void *Thread::get_serialization_page() {
+   if (_serialization_page) return _serialization_page;
+ 
+   _serialization_page = os::alloc_memory_serialize_page();
+   return _serialization_page;
+ }
+ 
  // NOTE: dummy function for assertion purpose.
  void Thread::run() {
    ShouldNotReachHere();
  }