From 68aee07f9bad2c830a898cf6d6bfc11ea24efc40 Mon Sep 17 00:00:00 2001
From: Zhaolei <zhaolei@cn.fujitsu.com>
Date: Fri, 14 Nov 2008 09:44:33 +0100
Subject: [PATCH] Release old elevator on change elevator

We should release old elevator when change to use a new one.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
Reading git-format-patch failed