diff --git a/[refs] b/[refs]
index 41ed4983cf15..2bdd1ac24442 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2bcff60f7ce88c09a2bc1302ff14510737bfcb7b
+refs/heads/master: ed7fdff5d6754f9ef9e47bbf0b171d3d96fb7e41
diff --git a/trunk/include/asm-i386/system.h b/trunk/include/asm-i386/system.h
index 609756c61676..d69ba937e092 100644
--- a/trunk/include/asm-i386/system.h
+++ b/trunk/include/asm-i386/system.h
@@ -214,11 +214,6 @@ static inline unsigned long get_limit(unsigned long segment)
  */
  
 
-/* 
- * Actually only lfence would be needed for mb() because all stores done 
- * by the kernel should be already ordered. But keep a full barrier for now. 
- */
-
 #define mb() alternative("lock; addl $0,0(%%esp)", "mfence", X86_FEATURE_XMM2)
 #define rmb() alternative("lock; addl $0,0(%%esp)", "lfence", X86_FEATURE_XMM2)