net_sched: factorize qdisc stats handling

HTB takes into account skb is segmented in stats updates.
Generalize this to all schedulers.

They should use qdisc_bstats_update() helper instead of manipulating
bstats.bytes and bstats.packets

Add bstats_update() helper too for classes that use
gnet_stats_basic_packed fields.

Note : Right now, TCQ_F_CAN_BYPASS shortcurt can be taken only if no
stab is setup on qdisc.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 2 deletions

diff --git a/net/sched/sch_multiq.c b/net/sched/sch_multiq.c
index 32690deab5d0..21f13da24763 100644
--- a/net/sched/sch_multiq.c
+++ b/net/sched/sch_multiq.c
@@ -83,8 +83,7 @@ multiq_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 
         ret = qdisc_enqueue(skb, qdisc);
         if (ret == NET_XMIT_SUCCESS) {
-                sch->bstats.bytes += qdisc_pkt_len(skb);
-                sch->bstats.packets++;
+                qdisc_bstats_update(sch, skb);
                 sch->q.qlen++;
                 return NET_XMIT_SUCCESS;
         }