diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h
index 59488f2..ef4b213 100644
--- a/include/linux/fdtable.h
+++ b/include/linux/fdtable.h
@@ -118,6 +118,7 @@
 void reset_files_struct(struct files_struct *);
 int unshare_files(struct files_struct **);
 struct files_struct *dup_fd(struct files_struct *, int *);
+void do_close_on_exec(struct files_struct *);
 
 extern int __alloc_fd(struct files_struct *files,
 		      unsigned start, unsigned end, unsigned flags);