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kernel: fq_codel: dont reinit flow state

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Keep fq_codel flow state around after queue empty.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33687 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2012-10-10 11:54:31 +00:00
parent eaa73bfc36
commit eecf5b1752
1 changed files with 41 additions and 0 deletions
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41
target/linux/generic/patches-3.3/061-fq_codel-dont-reinit-flow-state.patch Normal file
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@ -0,0 +1,41 @@
From b379135c40163ae79ba7a54e6928b53983e74ee8 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Sat, 1 Sep 2012 03:19:57 +0000
Subject: [PATCH 307/558] 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>
---
net/sched/sch_fq_codel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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)
--
1.7.9.5