forked from luck/tmp_suning_uos_patched
fq_codel: fix return value of fq_codel_drop()
The ->drop() is supposed to return the number of bytes it dropped, however fq_codel_drop() returns the index of the flow where it drops a packet from. Fix this by introducing a helper to wrap fq_codel_drop(). Cc: Eric Dumazet <edumazet@google.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: Cong Wang <cwang@twopensource.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -163,6 +163,15 @@ static unsigned int fq_codel_drop(struct Qdisc *sch)
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return idx;
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return idx;
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}
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}
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static unsigned int fq_codel_qdisc_drop(struct Qdisc *sch)
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{
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unsigned int prev_backlog;
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prev_backlog = sch->qstats.backlog;
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fq_codel_drop(sch);
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return prev_backlog - sch->qstats.backlog;
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}
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static int fq_codel_enqueue(struct sk_buff *skb, struct Qdisc *sch)
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static int fq_codel_enqueue(struct sk_buff *skb, struct Qdisc *sch)
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{
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{
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struct fq_codel_sched_data *q = qdisc_priv(sch);
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struct fq_codel_sched_data *q = qdisc_priv(sch);
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@ -604,7 +613,7 @@ static struct Qdisc_ops fq_codel_qdisc_ops __read_mostly = {
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.enqueue = fq_codel_enqueue,
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.enqueue = fq_codel_enqueue,
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.dequeue = fq_codel_dequeue,
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.dequeue = fq_codel_dequeue,
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.peek = qdisc_peek_dequeued,
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.peek = qdisc_peek_dequeued,
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.drop = fq_codel_drop,
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.drop = fq_codel_qdisc_drop,
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.init = fq_codel_init,
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.init = fq_codel_init,
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.reset = fq_codel_reset,
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.reset = fq_codel_reset,
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.destroy = fq_codel_destroy,
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.destroy = fq_codel_destroy,
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