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| author | Jarek Poplawski <jarkao2@gmail.com> | 2008-10-06 10:41:50 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-10-06 10:41:50 -0700 |
| commit | 6252352d16f7b45a0fd42224f7e70e0288dc4480 (patch) | |
| tree | 5740210fbe67fb754c47a13cf6d18d4e09a10015 /net/sched | |
| parent | 554794de7949d1a6279336404c066f974d4c2bde (diff) | |
| download | linux-stable-6252352d16f7b45a0fd42224f7e70e0288dc4480.tar.gz linux-stable-6252352d16f7b45a0fd42224f7e70e0288dc4480.tar.bz2 linux-stable-6252352d16f7b45a0fd42224f7e70e0288dc4480.zip | |
pkt_sched: Simplify dev_requeue_skb and dequeue_skb
qdisc->requeue was planned to universally replace all requeuing code,
but at the top level we never requeue more than one skb, so qdisc->
gso_skb is enough for this. qdisc->requeue would be used on the lower
levels only for one level deep requeuing (like in sch_hfsc) after
finishing all the changes.
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched')
| -rw-r--r-- | net/sched/sch_generic.c | 21 |
1 files changed, 5 insertions, 16 deletions
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index 3db4cf1bd263..31f6b614b59b 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -44,12 +44,9 @@ static inline int qdisc_qlen(struct Qdisc *q) static inline int dev_requeue_skb(struct sk_buff *skb, struct Qdisc *q) { - if (unlikely(skb->next)) - q->gso_skb = skb; - else - __skb_queue_head(&q->requeue, skb); - + q->gso_skb = skb; __netif_schedule(q); + return 0; } @@ -57,24 +54,16 @@ static inline struct sk_buff *dequeue_skb(struct Qdisc *q) { struct sk_buff *skb = q->gso_skb; - if (!skb) - skb = skb_peek(&q->requeue); - if (unlikely(skb)) { struct net_device *dev = qdisc_dev(q); struct netdev_queue *txq; /* check the reason of requeuing without tx lock first */ txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb)); - if (!netif_tx_queue_stopped(txq) && - !netif_tx_queue_frozen(txq)) { - if (q->gso_skb) - q->gso_skb = NULL; - else - __skb_unlink(skb, &q->requeue); - } else { + if (!netif_tx_queue_stopped(txq) && !netif_tx_queue_frozen(txq)) + q->gso_skb = NULL; + else skb = NULL; - } } else { skb = q->dequeue(q); } |