diff options
| author | Eric Dumazet <edumazet@google.com> | 2016-06-12 20:01:25 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-06-14 17:17:58 -0400 |
| commit | 6c0d54f1897d229748d4f41ef919078db6db2123 (patch) | |
| tree | 966844c4135e7b6a037db8f2ad66c072b61f20fd | |
| parent | 881d0327db37ad917a367c77aff1afa1ee41e0a9 (diff) | |
net_sched: fix pfifo_head_drop behavior vs backlog
When the qdisc is full, we drop a packet at the head of the queue,
queue the current skb and return NET_XMIT_CN
Now we track backlog on upper qdiscs, we need to call
qdisc_tree_reduce_backlog(), even if the qlen did not change.
Fixes: 2ccccf5fb43f ("net_sched: update hierarchical backlog too")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>