diff --git a/include/linux/fs.h b/include/linux/fs.h
index cc2e0f5a8fd1..baea880c5c03 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1270,8 +1270,6 @@ extern void f_delown(struct file *filp);
 extern pid_t f_getown(struct file *filp);
 extern int send_sigurg(struct fown_struct *fown);
 
-struct mm_struct;
-
 /*
  *	Umount options
  */