net_sched: update bstats in dequeue()
Class bytes/packets stats can be misleading because they are updated in
enqueue() while packet might be dropped later.
We already fixed all qdiscs but sch_atm.
This patch makes the final cleanup.
class rate estimators can now match qdisc ones.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/sch_atm.c b/net/sched/sch_atm.c
index a77a4fb..8522a47 100644
--- a/net/sched/sch_atm.c
+++ b/net/sched/sch_atm.c
@@ -423,8 +423,6 @@
}
return ret;
}
- qdisc_bstats_update(sch, skb);
- bstats_update(&flow->bstats, skb);
/*
* Okay, this may seem weird. We pretend we've dropped the packet if
* it goes via ATM. The reason for this is that the outer qdisc
@@ -472,6 +470,8 @@
if (unlikely(!skb))
break;
+ qdisc_bstats_update(sch, skb);
+ bstats_update(&flow->bstats, skb);
pr_debug("atm_tc_dequeue: sending on class %p\n", flow);
/* remove any LL header somebody else has attached */
skb_pull(skb, skb_network_offset(skb));
diff --git a/net/sched/sch_drr.c b/net/sched/sch_drr.c
index c218987..9ce0b4f 100644
--- a/net/sched/sch_drr.c
+++ b/net/sched/sch_drr.c
@@ -376,8 +376,6 @@
cl->deficit = cl->quantum;
}
- bstats_update(&cl->bstats, skb);
-
sch->q.qlen++;
return err;
}
@@ -403,6 +401,8 @@
skb = qdisc_dequeue_peeked(cl->qdisc);
if (cl->qdisc->q.qlen == 0)
list_del(&cl->alist);
+
+ bstats_update(&cl->bstats, skb);
qdisc_bstats_update(sch, skb);
sch->q.qlen--;
return skb;
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index 8db3e2c..6c2ec45 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -1609,7 +1609,6 @@
if (cl->qdisc->q.qlen == 1)
set_active(cl, qdisc_pkt_len(skb));
- bstats_update(&cl->bstats, skb);
sch->q.qlen++;
return NET_XMIT_SUCCESS;
@@ -1657,6 +1656,7 @@
return NULL;
}
+ bstats_update(&cl->bstats, skb);
update_vf(cl, qdisc_pkt_len(skb), cur_time);
if (realtime)
cl->cl_cumul += qdisc_pkt_len(skb);
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index acae5b0..9d75b77 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -574,7 +574,6 @@
}
return ret;
} else {
- bstats_update(&cl->bstats, skb);
htb_activate(q, cl);
}
@@ -835,6 +834,7 @@
} while (cl != start);
if (likely(skb != NULL)) {
+ bstats_update(&cl->bstats, skb);
cl->un.leaf.deficit[level] -= qdisc_pkt_len(skb);
if (cl->un.leaf.deficit[level] < 0) {
cl->un.leaf.deficit[level] += cl->quantum;