batman-adv: remove orig_hash spinlock
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
This commit is contained in:
Marek Lindner
Родитель
1605d0d60b
Коммит
d0072609ba
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@ -158,9 +158,7 @@ static ssize_t bat_socket_write(struct file *file, const char __user *buff,
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struct orig_node *orig_node = NULL;
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struct neigh_node *neigh_node = NULL;
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struct batman_if *batman_if;
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size_t packet_len = sizeof(struct icmp_packet);
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uint8_t dstaddr[ETH_ALEN];
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if (len < sizeof(struct icmp_packet)) {
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bat_dbg(DBG_BATMAN, bat_priv,
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@ -220,7 +218,6 @@ static ssize_t bat_socket_write(struct file *file, const char __user *buff,
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if (atomic_read(&bat_priv->mesh_state) != MESH_ACTIVE)
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goto dst_unreach;
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spin_lock_bh(&bat_priv->orig_hash_lock);
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rcu_read_lock();
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orig_node = orig_hash_find(bat_priv, icmp_packet->dst);
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@ -239,14 +236,10 @@ static ssize_t bat_socket_write(struct file *file, const char __user *buff,
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rcu_read_unlock();
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batman_if = orig_node->router->if_incoming;
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memcpy(dstaddr, orig_node->router->addr, ETH_ALEN);
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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if (!batman_if)
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if (!neigh_node->if_incoming)
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goto dst_unreach;
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if (batman_if->if_status != IF_ACTIVE)
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if (neigh_node->if_incoming->if_status != IF_ACTIVE)
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goto dst_unreach;
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memcpy(icmp_packet->orig,
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@ -254,14 +247,13 @@ static ssize_t bat_socket_write(struct file *file, const char __user *buff,
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if (packet_len == sizeof(struct icmp_packet_rr))
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memcpy(icmp_packet->rr,
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batman_if->net_dev->dev_addr, ETH_ALEN);
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neigh_node->if_incoming->net_dev->dev_addr, ETH_ALEN);
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send_skb_packet(skb, batman_if, dstaddr);
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send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
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goto out;
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unlock:
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rcu_read_unlock();
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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dst_unreach:
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icmp_packet->msg_type = DESTINATION_UNREACHABLE;
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bat_socket_add_packet(socket_client, icmp_packet, packet_len);
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@ -79,7 +79,6 @@ int mesh_init(struct net_device *soft_iface)
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{
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struct bat_priv *bat_priv = netdev_priv(soft_iface);
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spin_lock_init(&bat_priv->orig_hash_lock);
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spin_lock_init(&bat_priv->forw_bat_list_lock);
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spin_lock_init(&bat_priv->forw_bcast_list_lock);
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spin_lock_init(&bat_priv->hna_lhash_lock);
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@ -44,18 +44,15 @@ int originator_init(struct bat_priv *bat_priv)
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if (bat_priv->orig_hash)
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return 1;
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spin_lock_bh(&bat_priv->orig_hash_lock);
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bat_priv->orig_hash = hash_new(1024);
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if (!bat_priv->orig_hash)
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goto err;
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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start_purge_timer(bat_priv);
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return 1;
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err:
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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return 0;
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}
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@ -159,7 +156,6 @@ void originator_free(struct bat_priv *bat_priv)
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cancel_delayed_work_sync(&bat_priv->orig_work);
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spin_lock_bh(&bat_priv->orig_hash_lock);
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bat_priv->orig_hash = NULL;
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for (i = 0; i < hash->size; i++) {
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@ -177,7 +173,6 @@ void originator_free(struct bat_priv *bat_priv)
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}
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hash_destroy(hash);
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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}
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/* this function finds or creates an originator entry for the given
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@ -342,8 +337,6 @@ static void _purge_orig(struct bat_priv *bat_priv)
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if (!hash)
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return;
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spin_lock_bh(&bat_priv->orig_hash_lock);
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/* for all origins... */
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for (i = 0; i < hash->size; i++) {
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head = &hash->table[i];
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@ -367,8 +360,6 @@ static void _purge_orig(struct bat_priv *bat_priv)
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spin_unlock_bh(list_lock);
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}
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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gw_node_purge(bat_priv);
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gw_election(bat_priv);
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@ -425,8 +416,6 @@ int orig_seq_print_text(struct seq_file *seq, void *offset)
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"Originator", "last-seen", "#", TQ_MAX_VALUE, "Nexthop",
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"outgoingIF", "Potential nexthops");
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spin_lock_bh(&bat_priv->orig_hash_lock);
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for (i = 0; i < hash->size; i++) {
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head = &hash->table[i];
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@ -462,8 +451,6 @@ int orig_seq_print_text(struct seq_file *seq, void *offset)
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rcu_read_unlock();
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}
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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if ((batman_count == 0))
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seq_printf(seq, "No batman nodes in range ...\n");
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@ -511,8 +498,6 @@ int orig_hash_add_if(struct batman_if *batman_if, int max_if_num)
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/* resize all orig nodes because orig_node->bcast_own(_sum) depend on
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* if_num */
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spin_lock_bh(&bat_priv->orig_hash_lock);
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for (i = 0; i < hash->size; i++) {
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head = &hash->table[i];
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@ -528,12 +513,10 @@ int orig_hash_add_if(struct batman_if *batman_if, int max_if_num)
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rcu_read_unlock();
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}
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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return 0;
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err:
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rcu_read_unlock();
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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return -ENOMEM;
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}
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@ -601,8 +584,6 @@ int orig_hash_del_if(struct batman_if *batman_if, int max_if_num)
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/* resize all orig nodes because orig_node->bcast_own(_sum) depend on
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* if_num */
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spin_lock_bh(&bat_priv->orig_hash_lock);
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for (i = 0; i < hash->size; i++) {
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head = &hash->table[i];
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@ -637,11 +618,9 @@ int orig_hash_del_if(struct batman_if *batman_if, int max_if_num)
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rcu_read_unlock();
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batman_if->if_num = -1;
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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return 0;
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err:
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rcu_read_unlock();
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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return -ENOMEM;
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}
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@ -46,8 +46,6 @@ void slide_own_bcast_window(struct batman_if *batman_if)
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int i;
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size_t word_index;
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spin_lock_bh(&bat_priv->orig_hash_lock);
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for (i = 0; i < hash->size; i++) {
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head = &hash->table[i];
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@ -64,8 +62,6 @@ void slide_own_bcast_window(struct batman_if *batman_if)
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}
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rcu_read_unlock();
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}
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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}
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static void update_HNA(struct bat_priv *bat_priv, struct orig_node *orig_node,
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@ -771,7 +767,7 @@ void receive_bat_packet(struct ethhdr *ethhdr,
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orig_node :
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get_orig_node(bat_priv, ethhdr->h_source));
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if (!orig_neigh_node)
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goto out_neigh;
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goto out;
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/* drop packet if sender is not a direct neighbor and if we
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* don't route towards it */
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@ -834,7 +830,6 @@ out:
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int recv_bat_packet(struct sk_buff *skb, struct batman_if *batman_if)
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{
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struct bat_priv *bat_priv = netdev_priv(batman_if->soft_iface);
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struct ethhdr *ethhdr;
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/* drop packet if it has not necessary minimum size */
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@ -861,12 +856,10 @@ int recv_bat_packet(struct sk_buff *skb, struct batman_if *batman_if)
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ethhdr = (struct ethhdr *)skb_mac_header(skb);
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spin_lock_bh(&bat_priv->orig_hash_lock);
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receive_aggr_bat_packet(ethhdr,
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skb->data,
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skb_headlen(skb),
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batman_if);
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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kfree_skb(skb);
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return NET_RX_SUCCESS;
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@ -878,8 +871,6 @@ static int recv_my_icmp_packet(struct bat_priv *bat_priv,
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struct orig_node *orig_node = NULL;
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struct neigh_node *neigh_node = NULL;
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struct icmp_packet_rr *icmp_packet;
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struct batman_if *batman_if;
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uint8_t dstaddr[ETH_ALEN];
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int ret = NET_RX_DROP;
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icmp_packet = (struct icmp_packet_rr *)skb->data;
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@ -895,7 +886,6 @@ static int recv_my_icmp_packet(struct bat_priv *bat_priv,
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/* answer echo request (ping) */
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/* get routing information */
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spin_lock_bh(&bat_priv->orig_hash_lock);
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rcu_read_lock();
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orig_node = orig_hash_find(bat_priv, icmp_packet->orig);
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@ -914,12 +904,6 @@ static int recv_my_icmp_packet(struct bat_priv *bat_priv,
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rcu_read_unlock();
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/* don't lock while sending the packets ... we therefore
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* copy the required data before sending */
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batman_if = orig_node->router->if_incoming;
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memcpy(dstaddr, orig_node->router->addr, ETH_ALEN);
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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/* create a copy of the skb, if needed, to modify it. */
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if (skb_cow(skb, sizeof(struct ethhdr)) < 0)
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goto out;
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@ -932,13 +916,12 @@ static int recv_my_icmp_packet(struct bat_priv *bat_priv,
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icmp_packet->msg_type = ECHO_REPLY;
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icmp_packet->ttl = TTL;
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send_skb_packet(skb, batman_if, dstaddr);
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send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
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ret = NET_RX_SUCCESS;
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goto out;
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unlock:
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rcu_read_unlock();
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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out:
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if (neigh_node)
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neigh_node_free_ref(neigh_node);
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@ -953,8 +936,6 @@ static int recv_icmp_ttl_exceeded(struct bat_priv *bat_priv,
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struct orig_node *orig_node = NULL;
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struct neigh_node *neigh_node = NULL;
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struct icmp_packet *icmp_packet;
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struct batman_if *batman_if;
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uint8_t dstaddr[ETH_ALEN];
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int ret = NET_RX_DROP;
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icmp_packet = (struct icmp_packet *)skb->data;
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@ -971,7 +952,6 @@ static int recv_icmp_ttl_exceeded(struct bat_priv *bat_priv,
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goto out;
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/* get routing information */
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spin_lock_bh(&bat_priv->orig_hash_lock);
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rcu_read_lock();
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orig_node = orig_hash_find(bat_priv, icmp_packet->orig);
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@ -990,12 +970,6 @@ static int recv_icmp_ttl_exceeded(struct bat_priv *bat_priv,
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rcu_read_unlock();
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/* don't lock while sending the packets ... we therefore
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* copy the required data before sending */
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batman_if = orig_node->router->if_incoming;
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memcpy(dstaddr, orig_node->router->addr, ETH_ALEN);
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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/* create a copy of the skb, if needed, to modify it. */
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if (skb_cow(skb, sizeof(struct ethhdr)) < 0)
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goto out;
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@ -1008,13 +982,12 @@ static int recv_icmp_ttl_exceeded(struct bat_priv *bat_priv,
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icmp_packet->msg_type = TTL_EXCEEDED;
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icmp_packet->ttl = TTL;
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send_skb_packet(skb, batman_if, dstaddr);
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send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
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ret = NET_RX_SUCCESS;
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goto out;
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unlock:
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rcu_read_unlock();
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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out:
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if (neigh_node)
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neigh_node_free_ref(neigh_node);
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@ -1031,9 +1004,7 @@ int recv_icmp_packet(struct sk_buff *skb, struct batman_if *recv_if)
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struct ethhdr *ethhdr;
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struct orig_node *orig_node = NULL;
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struct neigh_node *neigh_node = NULL;
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struct batman_if *batman_if;
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int hdr_size = sizeof(struct icmp_packet);
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uint8_t dstaddr[ETH_ALEN];
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int ret = NET_RX_DROP;
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/**
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@ -1079,7 +1050,6 @@ int recv_icmp_packet(struct sk_buff *skb, struct batman_if *recv_if)
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return recv_icmp_ttl_exceeded(bat_priv, skb);
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/* get routing information */
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spin_lock_bh(&bat_priv->orig_hash_lock);
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rcu_read_lock();
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orig_node = orig_hash_find(bat_priv, icmp_packet->dst);
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@ -1098,12 +1068,6 @@ int recv_icmp_packet(struct sk_buff *skb, struct batman_if *recv_if)
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rcu_read_unlock();
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/* don't lock while sending the packets ... we therefore
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* copy the required data before sending */
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batman_if = orig_node->router->if_incoming;
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memcpy(dstaddr, orig_node->router->addr, ETH_ALEN);
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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/* create a copy of the skb, if needed, to modify it. */
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if (skb_cow(skb, sizeof(struct ethhdr)) < 0)
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goto out;
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@ -1114,13 +1078,12 @@ int recv_icmp_packet(struct sk_buff *skb, struct batman_if *recv_if)
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icmp_packet->ttl--;
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/* route it */
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send_skb_packet(skb, batman_if, dstaddr);
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send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
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ret = NET_RX_SUCCESS;
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goto out;
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unlock:
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rcu_read_unlock();
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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out:
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if (neigh_node)
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neigh_node_free_ref(neigh_node);
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@ -1306,8 +1269,6 @@ int route_unicast_packet(struct sk_buff *skb, struct batman_if *recv_if,
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struct bat_priv *bat_priv = netdev_priv(recv_if->soft_iface);
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struct orig_node *orig_node = NULL;
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struct neigh_node *neigh_node = NULL;
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struct batman_if *batman_if;
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uint8_t dstaddr[ETH_ALEN];
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struct unicast_packet *unicast_packet;
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struct ethhdr *ethhdr = (struct ethhdr *)skb_mac_header(skb);
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int ret = NET_RX_DROP;
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@ -1324,7 +1285,6 @@ int route_unicast_packet(struct sk_buff *skb, struct batman_if *recv_if,
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}
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/* get routing information */
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spin_lock_bh(&bat_priv->orig_hash_lock);
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rcu_read_lock();
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orig_node = orig_hash_find(bat_priv, unicast_packet->dest);
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@ -1336,16 +1296,8 @@ int route_unicast_packet(struct sk_buff *skb, struct batman_if *recv_if,
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/* find_router() increases neigh_nodes refcount if found. */
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neigh_node = find_router(bat_priv, orig_node, recv_if);
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if (!neigh_node) {
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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if (!neigh_node)
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goto out;
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}
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/* don't lock while sending the packets ... we therefore
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* copy the required data before sending */
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batman_if = neigh_node->if_incoming;
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memcpy(dstaddr, neigh_node->addr, ETH_ALEN);
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spin_unlock_bh(&bat_priv->orig_hash_lock);
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/* create a copy of the skb, if needed, to modify it. */
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if (skb_cow(skb, sizeof(struct ethhdr)) < 0)
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@ -1355,12 +1307,14 @@ int route_unicast_packet(struct sk_buff *skb, struct batman_if *recv_if,
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if (unicast_packet->packet_type == BAT_UNICAST &&
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atomic_read(&bat_priv->fragmentation) &&
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skb->len > batman_if->net_dev->mtu)
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return frag_send_skb(skb, bat_priv, batman_if,
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dstaddr);
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skb->len > neigh_node->if_incoming->net_dev->mtu) {
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ret = frag_send_skb(skb, bat_priv,
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neigh_node->if_incoming, neigh_node->addr);
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goto out;
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}
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|
||||
if (unicast_packet->packet_type == BAT_UNICAST_FRAG &&
|
||||
frag_can_reassemble(skb, batman_if->net_dev->mtu)) {
|
||||
frag_can_reassemble(skb, neigh_node->if_incoming->net_dev->mtu)) {
|
||||
|
||||
ret = frag_reassemble_skb(skb, bat_priv, &new_skb);
|
||||
|
||||
|
|
@ -1381,13 +1335,12 @@ int route_unicast_packet(struct sk_buff *skb, struct batman_if *recv_if,
|
|||
unicast_packet->ttl--;
|
||||
|
||||
/* route it */
|
||||
send_skb_packet(skb, batman_if, dstaddr);
|
||||
send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
|
||||
ret = NET_RX_SUCCESS;
|
||||
goto out;
|
||||
|
||||
unlock:
|
||||
rcu_read_unlock();
|
||||
spin_unlock_bh(&bat_priv->orig_hash_lock);
|
||||
out:
|
||||
if (neigh_node)
|
||||
neigh_node_free_ref(neigh_node);
|
||||
|
|
@ -1486,7 +1439,6 @@ int recv_bcast_packet(struct sk_buff *skb, struct batman_if *recv_if)
|
|||
if (bcast_packet->ttl < 2)
|
||||
goto out;
|
||||
|
||||
spin_lock_bh(&bat_priv->orig_hash_lock);
|
||||
rcu_read_lock();
|
||||
orig_node = orig_hash_find(bat_priv, bcast_packet->orig);
|
||||
|
||||
|
|
@ -1515,7 +1467,6 @@ int recv_bcast_packet(struct sk_buff *skb, struct batman_if *recv_if)
|
|||
orig_node->last_bcast_seqno = ntohl(bcast_packet->seqno);
|
||||
|
||||
spin_unlock_bh(&orig_node->bcast_seqno_lock);
|
||||
spin_unlock_bh(&bat_priv->orig_hash_lock);
|
||||
|
||||
/* rebroadcast packet */
|
||||
add_bcast_packet_to_list(bat_priv, skb);
|
||||
|
|
@ -1527,11 +1478,9 @@ int recv_bcast_packet(struct sk_buff *skb, struct batman_if *recv_if)
|
|||
|
||||
rcu_unlock:
|
||||
rcu_read_unlock();
|
||||
spin_unlock_bh(&bat_priv->orig_hash_lock);
|
||||
goto out;
|
||||
spin_unlock:
|
||||
spin_unlock_bh(&orig_node->bcast_seqno_lock);
|
||||
spin_unlock_bh(&bat_priv->orig_hash_lock);
|
||||
out:
|
||||
if (orig_node)
|
||||
orig_node_free_ref(orig_node);
|
||||
|
|
|
|||
|
|
@ -159,7 +159,6 @@ struct bat_priv {
|
|||
struct hashtable_t *hna_local_hash;
|
||||
struct hashtable_t *hna_global_hash;
|
||||
struct hashtable_t *vis_hash;
|
||||
spinlock_t orig_hash_lock; /* protects orig_hash */
|
||||
spinlock_t forw_bat_list_lock; /* protects forw_bat_list */
|
||||
spinlock_t forw_bcast_list_lock; /* protects */
|
||||
spinlock_t hna_lhash_lock; /* protects hna_local_hash */
|
||||
|
|
|
|||
|
|
@ -179,10 +179,9 @@ int frag_reassemble_skb(struct sk_buff *skb, struct bat_priv *bat_priv,
|
|||
|
||||
*new_skb = NULL;
|
||||
|
||||
spin_lock_bh(&bat_priv->orig_hash_lock);
|
||||
orig_node = orig_hash_find(bat_priv, unicast_packet->orig);
|
||||
if (!orig_node)
|
||||
goto unlock;
|
||||
goto out;
|
||||
|
||||
orig_node->last_frag_packet = jiffies;
|
||||
|
||||
|
|
@ -207,8 +206,6 @@ int frag_reassemble_skb(struct sk_buff *skb, struct bat_priv *bat_priv,
|
|||
if (*new_skb)
|
||||
ret = NET_RX_SUCCESS;
|
||||
|
||||
unlock:
|
||||
spin_unlock_bh(&bat_priv->orig_hash_lock);
|
||||
out:
|
||||
if (orig_node)
|
||||
orig_node_free_ref(orig_node);
|
||||
|
|
@ -281,14 +278,10 @@ int unicast_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv)
|
|||
struct ethhdr *ethhdr = (struct ethhdr *)skb->data;
|
||||
struct unicast_packet *unicast_packet;
|
||||
struct orig_node *orig_node;
|
||||
struct batman_if *batman_if;
|
||||
struct neigh_node *neigh_node;
|
||||
int data_len = skb->len;
|
||||
uint8_t dstaddr[6];
|
||||
int ret = 1;
|
||||
|
||||
spin_lock_bh(&bat_priv->orig_hash_lock);
|
||||
|
||||
/* get routing information */
|
||||
if (is_multicast_ether_addr(ethhdr->h_dest)) {
|
||||
orig_node = (struct orig_node *)gw_get_selected(bat_priv);
|
||||
|
|
@ -300,23 +293,21 @@ int unicast_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv)
|
|||
orig_node = transtable_search(bat_priv, ethhdr->h_dest);
|
||||
|
||||
find_router:
|
||||
/* find_router() increases neigh_nodes refcount if found. */
|
||||
/**
|
||||
* find_router():
|
||||
* - if orig_node is NULL it returns NULL
|
||||
* - increases neigh_nodes refcount if found.
|
||||
*/
|
||||
neigh_node = find_router(bat_priv, orig_node, NULL);
|
||||
|
||||
if (!neigh_node)
|
||||
goto unlock;
|
||||
goto out;
|
||||
|
||||
if (neigh_node->if_incoming->if_status != IF_ACTIVE)
|
||||
goto unlock;
|
||||
goto out;
|
||||
|
||||
if (my_skb_head_push(skb, sizeof(struct unicast_packet)) < 0)
|
||||
goto unlock;
|
||||
|
||||
/* don't lock while sending the packets ... we therefore
|
||||
* copy the required data before sending */
|
||||
batman_if = neigh_node->if_incoming;
|
||||
memcpy(dstaddr, neigh_node->addr, ETH_ALEN);
|
||||
spin_unlock_bh(&bat_priv->orig_hash_lock);
|
||||
goto out;
|
||||
|
||||
unicast_packet = (struct unicast_packet *)skb->data;
|
||||
|
||||
|
|
@ -330,19 +321,18 @@ find_router:
|
|||
|
||||
if (atomic_read(&bat_priv->fragmentation) &&
|
||||
data_len + sizeof(struct unicast_packet) >
|
||||
batman_if->net_dev->mtu) {
|
||||
neigh_node->if_incoming->net_dev->mtu) {
|
||||
/* send frag skb decreases ttl */
|
||||
unicast_packet->ttl++;
|
||||
ret = frag_send_skb(skb, bat_priv, batman_if, dstaddr);
|
||||
ret = frag_send_skb(skb, bat_priv,
|
||||
neigh_node->if_incoming, neigh_node->addr);
|
||||
goto out;
|
||||
}
|
||||
|
||||
send_skb_packet(skb, batman_if, dstaddr);
|
||||
send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
|
||||
ret = 0;
|
||||
goto out;
|
||||
|
||||
unlock:
|
||||
spin_unlock_bh(&bat_priv->orig_hash_lock);
|
||||
out:
|
||||
if (neigh_node)
|
||||
neigh_node_free_ref(neigh_node);
|
||||
|
|
|
|||
|
|
@ -614,7 +614,6 @@ static int generate_vis_packet(struct bat_priv *bat_priv)
|
|||
info->first_seen = jiffies;
|
||||
packet->vis_type = atomic_read(&bat_priv->vis_mode);
|
||||
|
||||
spin_lock_bh(&bat_priv->orig_hash_lock);
|
||||
memcpy(packet->target_orig, broadcast_addr, ETH_ALEN);
|
||||
packet->ttl = TTL;
|
||||
packet->seqno = htonl(ntohl(packet->seqno) + 1);
|
||||
|
|
@ -624,10 +623,8 @@ static int generate_vis_packet(struct bat_priv *bat_priv)
|
|||
if (packet->vis_type == VIS_TYPE_CLIENT_UPDATE) {
|
||||
best_tq = find_best_vis_server(bat_priv, info);
|
||||
|
||||
if (best_tq < 0) {
|
||||
spin_unlock_bh(&bat_priv->orig_hash_lock);
|
||||
if (best_tq < 0)
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
for (i = 0; i < hash->size; i++) {
|
||||
|
|
@ -659,17 +656,12 @@ static int generate_vis_packet(struct bat_priv *bat_priv)
|
|||
entry->quality = neigh_node->tq_avg;
|
||||
packet->entries++;
|
||||
|
||||
if (vis_packet_full(info)) {
|
||||
rcu_read_unlock();
|
||||
spin_unlock_bh(&bat_priv->orig_hash_lock);
|
||||
return 0;
|
||||
}
|
||||
if (vis_packet_full(info))
|
||||
goto unlock;
|
||||
}
|
||||
rcu_read_unlock();
|
||||
}
|
||||
|
||||
spin_unlock_bh(&bat_priv->orig_hash_lock);
|
||||
|
||||
hash = bat_priv->hna_local_hash;
|
||||
|
||||
spin_lock_bh(&bat_priv->hna_lhash_lock);
|
||||
|
|
@ -694,6 +686,10 @@ static int generate_vis_packet(struct bat_priv *bat_priv)
|
|||
|
||||
spin_unlock_bh(&bat_priv->hna_lhash_lock);
|
||||
return 0;
|
||||
|
||||
unlock:
|
||||
rcu_read_unlock();
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* free old vis packets. Must be called with this vis_hash_lock
|
||||
|
|
@ -739,7 +735,6 @@ static void broadcast_vis_packet(struct bat_priv *bat_priv,
|
|||
int i;
|
||||
|
||||
|
||||
spin_lock_bh(&bat_priv->orig_hash_lock);
|
||||
packet = (struct vis_packet *)info->skb_packet->data;
|
||||
|
||||
/* send to all routers in range. */
|
||||
|
|
@ -762,18 +757,14 @@ static void broadcast_vis_packet(struct bat_priv *bat_priv,
|
|||
memcpy(packet->target_orig, orig_node->orig, ETH_ALEN);
|
||||
batman_if = orig_node->router->if_incoming;
|
||||
memcpy(dstaddr, orig_node->router->addr, ETH_ALEN);
|
||||
spin_unlock_bh(&bat_priv->orig_hash_lock);
|
||||
|
||||
skb = skb_clone(info->skb_packet, GFP_ATOMIC);
|
||||
if (skb)
|
||||
send_skb_packet(skb, batman_if, dstaddr);
|
||||
|
||||
spin_lock_bh(&bat_priv->orig_hash_lock);
|
||||
}
|
||||
rcu_read_unlock();
|
||||
}
|
||||
|
||||
spin_unlock_bh(&bat_priv->orig_hash_lock);
|
||||
}
|
||||
|
||||
static void unicast_vis_packet(struct bat_priv *bat_priv,
|
||||
|
|
@ -783,12 +774,9 @@ static void unicast_vis_packet(struct bat_priv *bat_priv,
|
|||
struct neigh_node *neigh_node = NULL;
|
||||
struct sk_buff *skb;
|
||||
struct vis_packet *packet;
|
||||
struct batman_if *batman_if;
|
||||
uint8_t dstaddr[ETH_ALEN];
|
||||
|
||||
packet = (struct vis_packet *)info->skb_packet->data;
|
||||
|
||||
spin_lock_bh(&bat_priv->orig_hash_lock);
|
||||
rcu_read_lock();
|
||||
orig_node = orig_hash_find(bat_priv, packet->target_orig);
|
||||
|
||||
|
|
@ -807,21 +795,15 @@ static void unicast_vis_packet(struct bat_priv *bat_priv,
|
|||
|
||||
rcu_read_unlock();
|
||||
|
||||
/* don't lock while sending the packets ... we therefore
|
||||
* copy the required data before sending */
|
||||
batman_if = orig_node->router->if_incoming;
|
||||
memcpy(dstaddr, orig_node->router->addr, ETH_ALEN);
|
||||
spin_unlock_bh(&bat_priv->orig_hash_lock);
|
||||
|
||||
skb = skb_clone(info->skb_packet, GFP_ATOMIC);
|
||||
if (skb)
|
||||
send_skb_packet(skb, batman_if, dstaddr);
|
||||
send_skb_packet(skb, neigh_node->if_incoming,
|
||||
neigh_node->addr);
|
||||
|
||||
goto out;
|
||||
|
||||
unlock:
|
||||
rcu_read_unlock();
|
||||
spin_unlock_bh(&bat_priv->orig_hash_lock);
|
||||
out:
|
||||
if (neigh_node)
|
||||
neigh_node_free_ref(neigh_node);
|
||||
|
|
|
|||
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