diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index b096159..beaef5c 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -103,7 +103,9 @@
 int pdflush_operation(void (*fn)(unsigned long), unsigned long arg0);
 int do_writepages(struct address_space *mapping, struct writeback_control *wbc);
 int sync_page_range(struct inode *inode, struct address_space *mapping,
-			loff_t pos, size_t count);
+			loff_t pos, loff_t count);
+int sync_page_range_nolock(struct inode *inode, struct address_space *mapping,
+			   loff_t pos, loff_t count);
 
 /* pdflush.c */
 extern int nr_pdflush_threads;	/* Global so it can be exported to sysctl