8278031: MultiThreadedRefCounter should not use relaxed atomic decrement

Reviewed-by: kbarrett
2021-12-06 09:29:28 +00:00 · 2021-12-06 09:29:28 +00:00 · d14f06a963
commit d14f06a963
parent 8d190dd003
1 changed files with 5 additions and 1 deletions
--- a/src/hotspot/share/jfr/utilities/jfrRefCountPointer.hpp
+++ b/src/hotspot/share/jfr/utilities/jfrRefCountPointer.hpp
@ -116,7 +116,11 @@ class MultiThreadedRefCounter {
  }

  bool dec() const {
-    return 0 == Atomic::sub(&_refs, 1, memory_order_relaxed);
+    if (0 == Atomic::sub(&_refs, 1, memory_order_release)) {
+      OrderAccess::acquire();
+      return true;
+    }
+    return false;
  }

  intptr_t current() const {