From: Jens Axboe <jens.axboe@oracle.com>
Date: Fri, 20 Apr 2007 12:18:00 +0000 (+0200)
Subject: cfq-iosched: slice offset should take ioprio into account
X-Git-Tag: MMI-PSA29.97-13-9~44251^2^2~9
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=67e6b49e39e9b9bf5ce1351ef21dad391856183f;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git

cfq-iosched: slice offset should take ioprio into account

Use the max_slice-cur_slice as the multipler for the insertion offset.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 29284fa06e6b..4a0397022f5b 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -442,7 +442,8 @@ static unsigned long cfq_slice_offset(struct cfq_data *cfqd,
 	/*
 	 * just an approximation, should be ok.
 	 */
-	return ((cfqd->busy_queues - 1) * cfq_prio_slice(cfqd, 1, 0));
+	return (cfqd->busy_queues - 1) * (cfq_prio_slice(cfqd, 1, 0) -
+		       cfq_prio_slice(cfqd, cfq_cfqq_sync(cfqq), cfqq->ioprio));
 }
 
 /*