diff --git a/[refs] b/[refs]
index 0cff698b7a9e..6dfa18462f0e 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 6b945df74233386aab526cddd3593ed4b854f574
+refs/heads/master: bbacff94d0c38163ef01361de006797c92e69e58
diff --git a/trunk/arch/tile/include/asm/mman.h b/trunk/arch/tile/include/asm/mman.h
index 4c6811e3e8dc..81b8fc348d63 100644
--- a/trunk/arch/tile/include/asm/mman.h
+++ b/trunk/arch/tile/include/asm/mman.h
@@ -23,6 +23,7 @@
 #define MAP_POPULATE	0x0040		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x0080		/* do not block on IO */
 #define MAP_GROWSDOWN	0x0100		/* stack-like segment */
+#define MAP_STACK	MAP_GROWSDOWN	/* provide convenience alias */
 #define MAP_LOCKED	0x0200		/* pages are locked */
 #define MAP_NORESERVE	0x0400		/* don't check for reservations */
 #define MAP_DENYWRITE	0x0800		/* ETXTBSY */