linux-kernel - Re: [PATCH 04/19] io-controller: Modify cfq to make use of flat elevator fair queuing

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Message-ID: <4A385374.7060708@cn.fujitsu.com>
Date:	Wed, 17 Jun 2009 10:22:44 +0800
From:	Gui Jianfeng <guijianfeng@...fujitsu.com>
To:	Vivek Goyal <vgoyal@...hat.com>
CC:	linux-kernel@...r.kernel.org,
	containers@...ts.linux-foundation.org, dm-devel@...hat.com,
	jens.axboe@...cle.com, nauman@...gle.com, dpshah@...gle.com,
	lizf@...fujitsu.com, mikew@...gle.com, fchecconi@...il.com,
	paolo.valente@...more.it, ryov@...inux.co.jp,
	fernando@....ntt.co.jp, s-uchida@...jp.nec.com, taka@...inux.co.jp,
	jmoyer@...hat.com, dhaval@...ux.vnet.ibm.com,
	balbir@...ux.vnet.ibm.com, righi.andrea@...il.com,
	m-ikeda@...jp.nec.com, jbaron@...hat.com, agk@...hat.com,
	snitzer@...hat.com, akpm@...ux-foundation.org, peterz@...radead.org
Subject: Re: [PATCH 04/19] io-controller: Modify cfq to make use of flat elevator
 fair queuing

Vivek Goyal wrote:
> This patch changes cfq to use fair queuing code from elevator layer.
> 

elevator_private2 isn't used to store cfqq now.

Signed-off-by: Gui Jianfeng <guijianfeng@...fujitsu.com>
---
 block/cfq-iosched.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 23b24b9..7a9bbe6 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -1874,7 +1874,7 @@ static void cfq_put_request(struct request *rq)
 		put_io_context(RQ_CIC(rq)->ioc);
 
 		rq->elevator_private = NULL;
-		rq->elevator_private2 = NULL;
+		rq->ioq = NULL;
 
 		cfq_put_queue(cfqq);
 	}
-- 
1.5.4.rc3

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