From 910563941d0338fc8a5df701e0eff930068feb05 Mon Sep 17 00:00:00 2001
From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Mon, 25 Jun 2012 13:37:19 +0900
Subject: [PATCH] add round_up utility function

OF protocols need this in many places.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Reviewed-by: Simon Horman <horms@verge.net.au>
---
 ryu/utils.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ryu/utils.py b/ryu/utils.py
index a14929b9..1bc7ea3f 100644
--- a/ryu/utils.py
+++ b/ryu/utils.py
@@ -61,3 +61,7 @@ def find_flagfile(default_path=RYU_DEFAULT_FLAG_FILE):
         sys.argv.insert(1, flagfile)
         LOG.debug('flagfile = %s', filename)
         return
+
+
+def round_up(x, y):
+    return ((x + y - 1) / y) * y