--- linux-2.6.16.x86_64/fs/open.c.org
+++ linux-2.6.16.x86_64/fs/open.c
@@ -322,7 +322,7 @@ static long do_sys_ftruncate(unsigned in
 
 	error = locks_verify_truncate(inode, file, length);
 	if (!error)
-		error = do_truncate(dentry, length, 0, file);
+		error = do_truncate(dentry, length, ATTR_MTIME|ATTR_CTIME, file);
 out_putf:
 	fput(file);
 out: