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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>
This commit is contained in:
Eric Dumazet 2012-05-10 05:36:34 +00:00 committed by David S. Miller
parent a6700db179
commit 2dd875ff31
4 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
net/sched/sch_atm.c
View File

@ -423,8 +423,6 @@ drop: __maybe_unused
} }
return ret; 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 * 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 * it goes via ATM. The reason for this is that the outer qdisc
@ -472,6 +470,8 @@ static void sch_atm_dequeue(unsigned long data)
if (unlikely(!skb)) if (unlikely(!skb))
break; break;
qdisc_bstats_update(sch, skb);
bstats_update(&flow->bstats, skb);
pr_debug("atm_tc_dequeue: sending on class %p\n", flow); pr_debug("atm_tc_dequeue: sending on class %p\n", flow);
/* remove any LL header somebody else has attached */ /* remove any LL header somebody else has attached */
skb_pull(skb, skb_network_offset(skb)); skb_pull(skb, skb_network_offset(skb));

4
net/sched/sch_drr.c
View File

@ -376,8 +376,6 @@ static int drr_enqueue(struct sk_buff *skb, struct Qdisc *sch)
cl->deficit = cl->quantum; cl->deficit = cl->quantum;
} }
bstats_update(&cl->bstats, skb);
sch->q.qlen++; sch->q.qlen++;
return err; return err;
} }
@ -403,6 +401,8 @@ static struct sk_buff *drr_dequeue(struct Qdisc *sch)
skb = qdisc_dequeue_peeked(cl->qdisc); skb = qdisc_dequeue_peeked(cl->qdisc);
if (cl->qdisc->q.qlen == 0) if (cl->qdisc->q.qlen == 0)
list_del(&cl->alist); list_del(&cl->alist);
bstats_update(&cl->bstats, skb);
qdisc_bstats_update(sch, skb); qdisc_bstats_update(sch, skb);
sch->q.qlen--; sch->q.qlen--;
return skb; return skb;

2
net/sched/sch_hfsc.c
View File

@ -1609,7 +1609,6 @@ hfsc_enqueue(struct sk_buff *skb, struct Qdisc *sch)
if (cl->qdisc->q.qlen == 1) if (cl->qdisc->q.qlen == 1)
set_active(cl, qdisc_pkt_len(skb)); set_active(cl, qdisc_pkt_len(skb));
bstats_update(&cl->bstats, skb);
sch->q.qlen++; sch->q.qlen++;
return NET_XMIT_SUCCESS; return NET_XMIT_SUCCESS;
@ -1657,6 +1656,7 @@ hfsc_dequeue(struct Qdisc *sch)
return NULL; return NULL;
} }
bstats_update(&cl->bstats, skb);
update_vf(cl, qdisc_pkt_len(skb), cur_time); update_vf(cl, qdisc_pkt_len(skb), cur_time);
if (realtime) if (realtime)
cl->cl_cumul += qdisc_pkt_len(skb); cl->cl_cumul += qdisc_pkt_len(skb);

2
net/sched/sch_htb.c
View File

@ -574,7 +574,6 @@ static int htb_enqueue(struct sk_buff *skb, struct Qdisc *sch)
} }
return ret; return ret;
} else { } else {
bstats_update(&cl->bstats, skb);
htb_activate(q, cl); htb_activate(q, cl);
} }
@ -835,6 +834,7 @@ next:
} while (cl != start); } while (cl != start);
if (likely(skb != NULL)) { if (likely(skb != NULL)) {
bstats_update(&cl->bstats, skb);
cl->un.leaf.deficit[level] -= qdisc_pkt_len(skb); cl->un.leaf.deficit[level] -= qdisc_pkt_len(skb);
if (cl->un.leaf.deficit[level] < 0) { if (cl->un.leaf.deficit[level] < 0) {
cl->un.leaf.deficit[level] += cl->quantum; cl->un.leaf.deficit[level] += cl->quantum;