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authorFelix Fietkau <nbd@openwrt.org>2012-10-10 11:54:31 +0000
committerFelix Fietkau <nbd@openwrt.org>2012-10-10 11:54:31 +0000
commitd0ec348ded6f715b43b396b06ccb10599b37969d (patch)
tree38c4c336aacd612b5cd620aeaad948fe79875274
parentf933719138c9402de7b6c0084e2f1fec3a06d803 (diff)
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kernel: fq_codel: dont reinit flow state
Keep fq_codel flow state around after queue empty. SVN-Revision: 33687
-rw-r--r--target/linux/generic/patches-3.3/061-fq_codel-dont-reinit-flow-state.patch41
1 files changed, 41 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.3/061-fq_codel-dont-reinit-flow-state.patch b/target/linux/generic/patches-3.3/061-fq_codel-dont-reinit-flow-state.patch
new file mode 100644
index 0000000000..2e6b219446
--- /dev/null
+++ b/target/linux/generic/patches-3.3/061-fq_codel-dont-reinit-flow-state.patch
@@ -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
+