src/hotspot/share/oops/markOop.hpp

rev 54417 : imported patch dcubed.monitor_deflate_conc.v2.01

@@ -207,10 +207,14 @@
     return (mask_bits(value(), lock_mask_in_place) != unlocked_value);
   }
   bool is_unlocked() const {
     return (mask_bits(value(), biased_lock_mask_in_place) == unlocked_value);
   }
+  // ObjectMonitor::install_displaced_markword_in_object() uses
+  // is_marked() on ObjectMonitor::_header as part of the restoration
+  // protocol for an object's header. In this usage, the mark bits are
+  // only ever set (and cleared) on the ObjectMonitor::_header field.
   bool is_marked()   const {
     return (mask_bits(value(), lock_mask_in_place) == marked_value);
   }
   bool is_neutral()  const { return (mask_bits(value(), biased_lock_mask_in_place) == unlocked_value); }