diff --git a/include/linux/fs.h b/include/linux/fs.h
index 38356ab..c8667f8 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -429,6 +429,7 @@
 struct vm_area_struct;
 struct vfsmount;
 struct cred;
+struct swap_info_struct;
 
 extern void __init inode_init(void);
 extern void __init inode_init_early(void);
@@ -640,8 +641,9 @@
 	int (*error_remove_page)(struct address_space *, struct page *);
 
 	/* swapfile support */
-	int (*swap_activate)(struct file *file);
-	int (*swap_deactivate)(struct file *file);
+	int (*swap_activate)(struct swap_info_struct *sis, struct file *file,
+				sector_t *span);
+	void (*swap_deactivate)(struct file *file);
 };
 
 extern const struct address_space_operations empty_aops;