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authorDavid S. Miller <davem@davemloft.net>2011-12-02 13:49:21 -0500
committerDavid S. Miller <davem@davemloft.net>2011-12-02 13:49:21 -0500
commitb3613118eb30a589d971e4eccbbb2a1314f5dfd4 (patch)
tree868c1ee59e1b5c19a4f2e43716400d0001a994e5 /net/sched/sch_teql.c
parent7505afe28c16a8d386624930a018d0052c75d687 (diff)
parent5983fe2b29df5885880d7fa3b91aca306c7564ef (diff)
downloadlinux-b3613118eb30a589d971e4eccbbb2a1314f5dfd4.tar.bz2
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'net/sched/sch_teql.c')
-rw-r--r--net/sched/sch_teql.c31
1 files changed, 20 insertions, 11 deletions
diff --git a/net/sched/sch_teql.c b/net/sched/sch_teql.c
index 283bfe3de59d..ed1336e15920 100644
--- a/net/sched/sch_teql.c
+++ b/net/sched/sch_teql.c
@@ -225,11 +225,11 @@ static int teql_qdisc_init(struct Qdisc *sch, struct nlattr *opt)
static int
-__teql_resolve(struct sk_buff *skb, struct sk_buff *skb_res, struct net_device *dev)
+__teql_resolve(struct sk_buff *skb, struct sk_buff *skb_res,
+ struct net_device *dev, struct netdev_queue *txq,
+ struct neighbour *mn)
{
- struct netdev_queue *dev_queue = netdev_get_tx_queue(dev, 0);
- struct teql_sched_data *q = qdisc_priv(dev_queue->qdisc);
- struct neighbour *mn = dst_get_neighbour(skb_dst(skb));
+ struct teql_sched_data *q = qdisc_priv(txq->qdisc);
struct neighbour *n = q->ncache;
if (mn->tbl == NULL)
@@ -262,17 +262,26 @@ __teql_resolve(struct sk_buff *skb, struct sk_buff *skb_res, struct net_device *
}
static inline int teql_resolve(struct sk_buff *skb,
- struct sk_buff *skb_res, struct net_device *dev)
+ struct sk_buff *skb_res,
+ struct net_device *dev,
+ struct netdev_queue *txq)
{
- struct netdev_queue *txq = netdev_get_tx_queue(dev, 0);
+ struct dst_entry *dst = skb_dst(skb);
+ struct neighbour *mn;
+ int res;
+
if (txq->qdisc == &noop_qdisc)
return -ENODEV;
- if (dev->header_ops == NULL ||
- skb_dst(skb) == NULL ||
- dst_get_neighbour(skb_dst(skb)) == NULL)
+ if (!dev->header_ops || !dst)
return 0;
- return __teql_resolve(skb, skb_res, dev);
+
+ rcu_read_lock();
+ mn = dst_get_neighbour(dst);
+ res = mn ? __teql_resolve(skb, skb_res, dev, txq, mn) : 0;
+ rcu_read_unlock();
+
+ return res;
}
static netdev_tx_t teql_master_xmit(struct sk_buff *skb, struct net_device *dev)
@@ -307,7 +316,7 @@ restart:
continue;
}
- switch (teql_resolve(skb, skb_res, slave)) {
+ switch (teql_resolve(skb, skb_res, slave, slave_txq)) {
case 0:
if (__netif_tx_trylock(slave_txq)) {
unsigned int length = qdisc_pkt_len(skb);