Change "Memory Barriers" to "Optimization Barriers".

[pintos-anon] / src / threads / synch.h

diff --git a/src/threads/synch.h b/src/threads/synch.h
index 53a5ee488cf07c83f68a7b136bc6506136180ac9..6b8f550e8798f6b9b916cf15ce8ec72861e283a8 100644 (file)
--- a/src/threads/synch.h
+++ b/src/threads/synch.h
@@ -41,10 +41,10 @@ void cond_wait (struct condition *, struct lock *);
 void cond_signal (struct condition *, struct lock *);
 void cond_broadcast (struct condition *, struct lock *);
 
-/* Memory barrier.
+/* Optimization barrier.
 
-   The compiler will not reorder operations that access memory
-   across a memory barrier. */
+   The compiler will not reorder operations across an
+   optimization barrier. */
 #define barrier() asm volatile ("")
 
 #endif /* threads/synch.h */