Root/target/linux/generic/patches-3.3/061-fq_codel-dont-reinit-flow-state.patch

1From b379135c40163ae79ba7a54e6928b53983e74ee8 Mon Sep 17 00:00:00 2001
2From: Eric Dumazet <eric.dumazet@gmail.com>
3Date: Sat, 1 Sep 2012 03:19:57 +0000
4Subject: [PATCH 307/558] fq_codel: dont reinit flow state
5
6When fq_codel builds a new flow, it should not reset codel state.
7
8Codel algo needs to get previous values (lastcount, drop_next) to get
9proper behavior.
10
11Signed-off-by: Dave Taht <dave.taht@gmail.com>
12Signed-off-by: Eric Dumazet <edumazet@google.com>
13Acked-by: Dave Taht <dave.taht@bufferbloat.net>
14Signed-off-by: David S. Miller <davem@davemloft.net>
15---
16 net/sched/sch_fq_codel.c | 2 +-
17 1 file changed, 1 insertion(+), 1 deletion(-)
18
19--- a/net/sched/sch_fq_codel.c
20+++ b/net/sched/sch_fq_codel.c
21@@ -191,7 +191,6 @@ static int fq_codel_enqueue(struct sk_bu
22 
23     if (list_empty(&flow->flowchain)) {
24         list_add_tail(&flow->flowchain, &q->new_flows);
25- codel_vars_init(&flow->cvars);
26         q->new_flow_count++;
27         flow->deficit = q->quantum;
28         flow->dropped = 0;
29@@ -418,6 +417,7 @@ static int fq_codel_init(struct Qdisc *s
30             struct fq_codel_flow *flow = q->flows + i;
31 
32             INIT_LIST_HEAD(&flow->flowchain);
33+ codel_vars_init(&flow->cvars);
34         }
35     }
36     if (sch->limit >= 1)
37

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