From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Sat, 1 Sep 2012 03:19:57 +0000 (+0000)
Subject: fq_codel: dont reinit flow state
X-Git-Tag: upstream/snapshot3+hdmi~6711^2~40
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b379135c40163ae79ba7a54e6928b53983e74ee8;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

fq_codel: dont reinit flow state

When fq_codel builds a new flow, it should not reset codel state.

Codel algo needs to get previous values (lastcount, drop_next) to get
proper behavior.

Signed-off-by: Dave Taht <dave.taht@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Dave Taht <dave.taht@bufferbloat.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/sched/sch_fq_codel.c b/net/sched/sch_fq_codel.c
index 9fc1c62..4e606fc 100644
--- a/net/sched/sch_fq_codel.c
+++ b/net/sched/sch_fq_codel.c
@@ -191,7 +191,6 @@ static int fq_codel_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 
 	if (list_empty(&flow->flowchain)) {
 		list_add_tail(&flow->flowchain, &q->new_flows);
-		codel_vars_init(&flow->cvars);
 		q->new_flow_count++;
 		flow->deficit = q->quantum;
 		flow->dropped = 0;
@@ -418,6 +417,7 @@ static int fq_codel_init(struct Qdisc *sch, struct nlattr *opt)
 			struct fq_codel_flow *flow = q->flows + i;
 
 			INIT_LIST_HEAD(&flow->flowchain);
+			codel_vars_init(&flow->cvars);
 		}
 	}
 	if (sch->limit >= 1)