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authorEric Dumazet <eric.dumazet@gmail.com>2010-11-23 10:42:02 +0000
committerDavid S. Miller <davem@davemloft.net>2010-11-28 10:47:18 -0800
commit5a0d2268d259886f0c87131639d19eb4a67b4532 (patch)
tree952e6225fcee027f3a4ae8e1c2b2c889eff3a8b2 /net/sched/sch_generic.c
parentd3c15cab213becc49a6f2ad7f48a59513a5f17dd (diff)
net: add netif_tx_queue_frozen_or_stopped
When testing struct netdev_queue state against FROZEN bit, we also test XOFF bit. We can test both bits at once and save some cycles. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_generic.c')
-rw-r--r--net/sched/sch_generic.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 5dbb3cd96e5..7f0bd895264 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -60,8 +60,7 @@ static inline struct sk_buff *dequeue_skb(struct Qdisc *q)
/* 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 (!netif_tx_queue_frozen_or_stopped(txq)) {
q->gso_skb = NULL;
q->q.qlen--;
} else
@@ -122,7 +121,7 @@ int sch_direct_xmit(struct sk_buff *skb, struct Qdisc *q,
spin_unlock(root_lock);
HARD_TX_LOCK(dev, txq, smp_processor_id());
- if (!netif_tx_queue_stopped(txq) && !netif_tx_queue_frozen(txq))
+ if (!netif_tx_queue_frozen_or_stopped(txq))
ret = dev_hard_start_xmit(skb, dev, txq);
HARD_TX_UNLOCK(dev, txq);
@@ -144,8 +143,7 @@ int sch_direct_xmit(struct sk_buff *skb, struct Qdisc *q,
ret = dev_requeue_skb(skb, q);
}
- if (ret && (netif_tx_queue_stopped(txq) ||
- netif_tx_queue_frozen(txq)))
+ if (ret && netif_tx_queue_frozen_or_stopped(txq))
ret = 0;
return ret;