linux-kernel - [PATCH] cfq: Remove wait_request flag when idle time is being deleted

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Date:	Thu, 10 Dec 2009 13:57:39 +0800
From:	Gui Jianfeng <guijianfeng@...fujitsu.com>
To:	Jens Axboe <jens.axboe@...cle.com>
CC:	linux-kernel@...r.kernel.org
Subject: [PATCH] cfq: Remove wait_request flag when idle time is being deleted

Hi Jens,

I post this patch a few month ago, it seems to get missing, repost again.

Remove wait_request flag when idle time is being deleted.

Signed-off-by: Gui Jianfeng <guijianfeng@...fujitsu.com>
---
 block/cfq-iosched.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 69ecee7..96f59ae 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -3202,6 +3202,7 @@ cfq_rq_enqueued(struct cfq_data *cfqd, struct cfq_queue *cfqq,
 			if (blk_rq_bytes(rq) > PAGE_CACHE_SIZE ||
 			    cfqd->busy_queues > 1) {
 				del_timer(&cfqd->idle_slice_timer);
+				cfq_clear_cfqq_wait_request(cfqq);
 				__blk_run_queue(cfqd->queue);
 			} else
 				cfq_mark_cfqq_must_dispatch(cfqq);
-- 
1.5.4.rc3

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