update rcu_dereference comment

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>

diff --git a/urcu-static.h b/urcu-static.h
index 91d37470fe785ffffd13dc7ebbebeb1357170cd7..66a06df85e0f72080bdb79a991e0f5d3e8691125 100644 (file)
--- a/urcu-static.h
+++ b/urcu-static.h
@@ -81,7 +81,9 @@
  * data read before the pointer read by speculating the value of the pointer.
  * Correct ordering is ensured because the pointer is read as a volatile access.
  * This acts as a global side-effect operation, which forbids reordering of
- * dependent memory operations.
+ * dependent memory operations. Note that such concern about dependency-breaking
+ * optimizations will eventually be taken care of by the "memory_order_consume"
+ * addition to forthcoming C++ standard.
  *
  * Should match rcu_assign_pointer() or rcu_xchg_pointer().
  */