rtnetlink: speedup rtnl_dump_ifinfo()

[safe/jmp/linux-2.6] / net / core / dev.c

diff --git a/net/core/dev.c b/net/core/dev.c
index 28b0b9e..e7bada1 100644 (file)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -193,18 +193,15 @@ static struct list_head ptype_all __read_mostly;  /* Taps */
 DEFINE_RWLOCK(dev_base_lock);
 EXPORT_SYMBOL(dev_base_lock);
 
-#define NETDEV_HASHBITS        8
-#define NETDEV_HASHENTRIES (1 << NETDEV_HASHBITS)
-
 static inline struct hlist_head *dev_name_hash(struct net *net, const char *name)
 {
        unsigned hash = full_name_hash(name, strnlen(name, IFNAMSIZ));
-       return &net->dev_name_head[hash & ((1 << NETDEV_HASHBITS) - 1)];
+       return &net->dev_name_head[hash & (NETDEV_HASHENTRIES - 1)];
 }
 
 static inline struct hlist_head *dev_index_hash(struct net *net, int ifindex)
 {
-       return &net->dev_index_head[ifindex & ((1 << NETDEV_HASHBITS) - 1)];
+       return &net->dev_index_head[ifindex & (NETDEV_HASHENTRIES - 1)];
 }
 
 /* Device list insertion */
@@ -1791,13 +1788,25 @@ EXPORT_SYMBOL(skb_tx_hash);
 static struct netdev_queue *dev_pick_tx(struct net_device *dev,
                                        struct sk_buff *skb)
 {
-       const struct net_device_ops *ops = dev->netdev_ops;
-       u16 queue_index = 0;
+       u16 queue_index;
+       struct sock *sk = skb->sk;
+
+       if (sk_tx_queue_recorded(sk)) {
+               queue_index = sk_tx_queue_get(sk);
+       } else {
+               const struct net_device_ops *ops = dev->netdev_ops;
 
-       if (ops->ndo_select_queue)
-               queue_index = ops->ndo_select_queue(dev, skb);
-       else if (dev->real_num_tx_queues > 1)
-               queue_index = skb_tx_hash(dev, skb);
+               if (ops->ndo_select_queue) {
+                       queue_index = ops->ndo_select_queue(dev, skb);
+               } else {
+                       queue_index = 0;
+                       if (dev->real_num_tx_queues > 1)
+                               queue_index = skb_tx_hash(dev, skb);
+
+                       if (sk && sk->sk_dst_cache)
+                               sk_tx_queue_set(sk, queue_index);
+               }
+       }
 
        skb_set_queue_mapping(skb, queue_index);
        return netdev_get_tx_queue(dev, queue_index);