From 5f4965d422cf1d2b4bb372202e6cae96be863d30 Mon Sep 17 00:00:00 2001
From: Zhengyu Gu <zgu@openjdk.org>
Date: Tue, 25 Apr 2023 17:55:57 +0000
Subject: [PATCH] 8306687: Relax memory ordering constraints on metaspace
 atomic counters

Reviewed-by: shade, minqi
---
 src/hotspot/share/memory/metaspace/counters.hpp | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/hotspot/share/memory/metaspace/counters.hpp b/src/hotspot/share/memory/metaspace/counters.hpp
index 33c19d1186a..c7c841df423 100644
--- a/src/hotspot/share/memory/metaspace/counters.hpp
+++ b/src/hotspot/share/memory/metaspace/counters.hpp
@@ -93,22 +93,22 @@ public:
 
   AbstractAtomicCounter() : _c(0) {}
 
-  T get() const               { return _c; }
+  T get() const               { return Atomic::load(&_c); }
 
   void increment() {
-    Atomic::inc(&_c);
+    Atomic::inc(&_c, memory_order_relaxed);
   }
 
   void decrement() {
-    Atomic::dec(&_c);
+    Atomic::dec(&_c, memory_order_relaxed);
   }
 
   void increment_by(T v) {
-    Atomic::add(&_c, v);
+    Atomic::add(&_c, v, memory_order_relaxed);
   }
 
   void decrement_by(T v) {
-    Atomic::sub(&_c, v);
+    Atomic::sub(&_c, v, memory_order_relaxed);
   }
 
 #ifdef ASSERT