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authorWANG Cong <xiyou.wangcong@gmail.com>2015-07-14 11:21:58 -0700
committerDavid S. Miller <davem@davemloft.net>2015-07-15 21:36:35 -0700
commitc0afd9ce4d6a646fb6433536f95a418bb348fab1 (patch)
tree25faa506001a9836892255ab9ac41da19b5ce878 /net/sched
parente8d092aafd9e68c04d7b468e95ff7a617998a796 (diff)
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>
Diffstat (limited to 'net/sched')
-rw-r--r--net/sched/sch_fq_codel.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/net/sched/sch_fq_codel.c b/net/sched/sch_fq_codel.c
index 06e7c845e24d..21ca33c9f036 100644
--- a/net/sched/sch_fq_codel.c
+++ b/net/sched/sch_fq_codel.c
@@ -163,6 +163,15 @@ static unsigned int fq_codel_drop(struct Qdisc *sch)
return idx;
}
+static unsigned int fq_codel_qdisc_drop(struct Qdisc *sch)
+{
+ unsigned int prev_backlog;
+
+ prev_backlog = sch->qstats.backlog;
+ fq_codel_drop(sch);
+ return prev_backlog - sch->qstats.backlog;
+}
+
static int fq_codel_enqueue(struct sk_buff *skb, struct Qdisc *sch)
{
struct fq_codel_sched_data *q = qdisc_priv(sch);
@@ -604,7 +613,7 @@ static struct Qdisc_ops fq_codel_qdisc_ops __read_mostly = {
.enqueue = fq_codel_enqueue,
.dequeue = fq_codel_dequeue,
.peek = qdisc_peek_dequeued,
- .drop = fq_codel_drop,
+ .drop = fq_codel_qdisc_drop,
.init = fq_codel_init,
.reset = fq_codel_reset,
.destroy = fq_codel_destroy,