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authorEric Dumazet <edumazet@google.com>2012-05-16 04:39:09 +0000
committerDavid S. Miller <davem@davemloft.net>2012-05-16 15:30:26 -0400
commit865ec5523dadbedefbc5710a68969f686a28d928 (patch)
treeb9f056cdea6922d5fc3ed035764660bb6fb152b3 /net/sched/sch_codel.c
parentc27b46e7f1cbf3be95a4cf5840c76a7b7d54b26f (diff)
fq_codel: should use qdisc backlog as threshold
codel_should_drop() logic allows a packet being not dropped if queue size is under max packet size. In fq_codel, we have two possible backlogs : The qdisc global one, and the flow local one. The meaningful one for codel_should_drop() should be the global backlog, not the per flow one, so that thin flows can have a non zero drop/mark probability. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Dave Taht <dave.taht@bufferbloat.net> Cc: Kathleen Nichols <nichols@pollere.com> Cc: Van Jacobson <van@pollere.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_codel.c')
-rw-r--r--net/sched/sch_codel.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/sched/sch_codel.c b/net/sched/sch_codel.c
index 213ef60bced8..2f9ab17db85a 100644
--- a/net/sched/sch_codel.c
+++ b/net/sched/sch_codel.c
@@ -77,8 +77,8 @@ static struct sk_buff *codel_qdisc_dequeue(struct Qdisc *sch)
struct codel_sched_data *q = qdisc_priv(sch);
struct sk_buff *skb;
- skb = codel_dequeue(sch, &q->params, &q->vars, &q->stats,
- dequeue, &sch->qstats.backlog);
+ skb = codel_dequeue(sch, &q->params, &q->vars, &q->stats, dequeue);
+
/* We cant call qdisc_tree_decrease_qlen() if our qlen is 0,
* or HTB crashes. Defer it for next round.
*/