diff --git a/[refs] b/[refs]
index 103df4167c4f..a36063ea0b3b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 45edb89ffd6386f95a7a9e1e5461b0e61c76aa14
+refs/heads/master: cd98a04a59e2f94fa64d5bf1e26498d27427d5e7
diff --git a/trunk/include/asm-x86/mman.h b/trunk/include/asm-x86/mman.h
index c1682b542daf..90bc4108a4fd 100644
--- a/trunk/include/asm-x86/mman.h
+++ b/trunk/include/asm-x86/mman.h
@@ -12,6 +12,7 @@
 #define MAP_NORESERVE	0x4000		/* don't check for reservations */
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
+#define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */