diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-07-21 17:16:09 -0300 |
---|---|---|
committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-07-21 17:16:09 -0300 |
commit | 4411a04f871d94ae997fb7262a428fe2ee988eb3 (patch) | |
tree | 92cb073311cb6c2eeb256969112ec61f877982d9 /net/sched/sch_fifo.c | |
parent | b907a8622e39eecfc4b243f3be3ad26559d1faee (diff) |
Linux-libre 4.6.4-gnupck-4.6.4-gnu
Diffstat (limited to 'net/sched/sch_fifo.c')
-rw-r--r-- | net/sched/sch_fifo.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/sched/sch_fifo.c b/net/sched/sch_fifo.c index 2177eac0a..2e4bd2c0a 100644 --- a/net/sched/sch_fifo.c +++ b/net/sched/sch_fifo.c @@ -37,14 +37,18 @@ static int pfifo_enqueue(struct sk_buff *skb, struct Qdisc *sch) static int pfifo_tail_enqueue(struct sk_buff *skb, struct Qdisc *sch) { + unsigned int prev_backlog; + if (likely(skb_queue_len(&sch->q) < sch->limit)) return qdisc_enqueue_tail(skb, sch); + prev_backlog = sch->qstats.backlog; /* queue full, remove one skb to fulfill the limit */ __qdisc_queue_drop_head(sch, &sch->q); qdisc_qstats_drop(sch); qdisc_enqueue_tail(skb, sch); + qdisc_tree_reduce_backlog(sch, 0, prev_backlog - sch->qstats.backlog); return NET_XMIT_CN; } |