diff --git a/[refs] b/[refs]
index 1654d55ca355..ebaf5b1b022a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7f84133af6aaa86e9ef0e9e1970655439a8cf3a1
+refs/heads/master: 86aaf4fd4ea25ddde05772d03b93dbce23c0ead1
diff --git a/trunk/include/asm-x86/pgtable.h b/trunk/include/asm-x86/pgtable.h
index 55c3a0e3a8ce..b816134f753a 100644
--- a/trunk/include/asm-x86/pgtable.h
+++ b/trunk/include/asm-x86/pgtable.h
@@ -57,6 +57,7 @@
 #define _KERNPG_TABLE	(_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED |	\
 			 _PAGE_DIRTY)
 
+/* Set of bits not changed in pte_modify */
 #define _PAGE_CHG_MASK	(PTE_MASK | _PAGE_PCD | _PAGE_PWT |		\
 			 _PAGE_ACCESSED | _PAGE_DIRTY)