[PATCH] dnotify fix for readv/writev

From Pengcheng Zou <pczou@redflag-linux.com>:
>
> Orignally DN_MODIFY is issued on readv while DN_ACCESS is issued on writev,
> which is obviously wrong. This patch fixes such problem.

This is the equivalent patch for 2.5.50+.

fs/read_write.c

@@ -447,7 +447,7 @@ static ssize_t do_readv_writev(int type, struct file *file,
 		kfree(iov);
 	if ((ret + (type == READ)) > 0)
 		dnotify_parent(file->f_dentry,
-				(type == READ) ? DN_MODIFY : DN_ACCESS);
+				(type == READ) ? DN_ACCESS : DN_MODIFY);
 	return ret;
 }