diff --git a/[refs] b/[refs]
index 1c9bc696dedc..d8c94de25204 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c4089f98e943ff445665dea49c190657b34ccffe
+refs/heads/master: bfa71457a091ac0e4e20cab36e8ebad63935e504
diff --git a/trunk/mm/slub.c b/trunk/mm/slub.c
index e3403b30159e..f899ff469f60 100644
--- a/trunk/mm/slub.c
+++ b/trunk/mm/slub.c
@@ -27,6 +27,7 @@
 #include <linux/memory.h>
 #include <linux/math64.h>
 #include <linux/fault-inject.h>
+#include <linux/stacktrace.h>
 
 #include <trace/events/kmem.h>