if (bat_priv->orig_hash)
return 1;
- spin_lock_bh(&bat_priv->orig_hash_lock);
bat_priv->orig_hash = hash_new(1024);
if (!bat_priv->orig_hash)
goto err;
- spin_unlock_bh(&bat_priv->orig_hash_lock);
start_purge_timer(bat_priv);
return 1;
err:
- spin_unlock_bh(&bat_priv->orig_hash_lock);
return 0;
}
struct neigh_node *create_neighbor(struct orig_node *orig_node,
struct orig_node *orig_neigh_node,
uint8_t *neigh,
- struct batman_if *if_incoming)
+ struct hard_iface *if_incoming)
{
struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
struct neigh_node *neigh_node;
memcpy(neigh_node->addr, neigh, ETH_ALEN);
neigh_node->orig_node = orig_neigh_node;
neigh_node->if_incoming = if_incoming;
- atomic_set(&neigh_node->refcount, 1);
+
+ /* extra reference for return */
+ atomic_set(&neigh_node->refcount, 2);
spin_lock_bh(&orig_node->neigh_list_lock);
hlist_add_head_rcu(&neigh_node->list, &orig_node->neigh_list);
return neigh_node;
}
-void orig_node_free_ref(struct kref *refcount)
+static void orig_node_free_rcu(struct rcu_head *rcu)
{
struct hlist_node *node, *node_tmp;
struct neigh_node *neigh_node, *tmp_neigh_node;
struct orig_node *orig_node;
- orig_node = container_of(refcount, struct orig_node, refcount);
+ orig_node = container_of(rcu, struct orig_node, rcu);
spin_lock_bh(&orig_node->neigh_list_lock);
kfree(orig_node);
}
+void orig_node_free_ref(struct orig_node *orig_node)
+{
+ if (atomic_dec_and_test(&orig_node->refcount))
+ call_rcu(&orig_node->rcu, orig_node_free_rcu);
+}
+
void originator_free(struct bat_priv *bat_priv)
{
struct hashtable_t *hash = bat_priv->orig_hash;
- struct hlist_node *walk, *safe;
+ struct hlist_node *node, *node_tmp;
struct hlist_head *head;
- struct element_t *bucket;
spinlock_t *list_lock; /* spinlock to protect write access */
struct orig_node *orig_node;
int i;
cancel_delayed_work_sync(&bat_priv->orig_work);
- spin_lock_bh(&bat_priv->orig_hash_lock);
bat_priv->orig_hash = NULL;
for (i = 0; i < hash->size; i++) {
list_lock = &hash->list_locks[i];
spin_lock_bh(list_lock);
- hlist_for_each_entry_safe(bucket, walk, safe, head, hlist) {
- orig_node = bucket->data;
+ hlist_for_each_entry_safe(orig_node, node, node_tmp,
+ head, hash_entry) {
- hlist_del_rcu(walk);
- call_rcu(&bucket->rcu, bucket_free_rcu);
- kref_put(&orig_node->refcount, orig_node_free_ref);
+ hlist_del_rcu(node);
+ orig_node_free_ref(orig_node);
}
spin_unlock_bh(list_lock);
}
hash_destroy(hash);
- spin_unlock_bh(&bat_priv->orig_hash_lock);
-}
-
-static void bucket_free_orig_rcu(struct rcu_head *rcu)
-{
- struct element_t *bucket;
- struct orig_node *orig_node;
-
- bucket = container_of(rcu, struct element_t, rcu);
- orig_node = bucket->data;
-
- kref_put(&orig_node->refcount, orig_node_free_ref);
- kfree(bucket);
}
/* this function finds or creates an originator entry for the given
int size;
int hash_added;
- rcu_read_lock();
- orig_node = ((struct orig_node *)hash_find(bat_priv->orig_hash,
- compare_orig, choose_orig,
- addr));
- rcu_read_unlock();
-
- if (orig_node) {
- kref_get(&orig_node->refcount);
+ orig_node = orig_hash_find(bat_priv, addr);
+ if (orig_node)
return orig_node;
- }
bat_dbg(DBG_BATMAN, bat_priv,
"Creating new originator: %pM\n", addr);
INIT_HLIST_HEAD(&orig_node->neigh_list);
INIT_LIST_HEAD(&orig_node->bond_list);
spin_lock_init(&orig_node->ogm_cnt_lock);
+ spin_lock_init(&orig_node->bcast_seqno_lock);
spin_lock_init(&orig_node->neigh_list_lock);
- kref_init(&orig_node->refcount);
+
+ /* extra reference for return */
+ atomic_set(&orig_node->refcount, 2);
orig_node->bat_priv = bat_priv;
memcpy(orig_node->orig, addr, ETH_ALEN);
if (!orig_node->bcast_own_sum)
goto free_bcast_own;
- hash_added = hash_add(bat_priv->orig_hash, compare_orig, choose_orig,
- orig_node);
+ hash_added = hash_add(bat_priv->orig_hash, compare_orig,
+ choose_orig, orig_node, &orig_node->hash_entry);
if (hash_added < 0)
goto free_bcast_own_sum;
- /* extra reference for return */
- kref_get(&orig_node->refcount);
return orig_node;
free_bcast_own_sum:
kfree(orig_node->bcast_own_sum);
static void _purge_orig(struct bat_priv *bat_priv)
{
struct hashtable_t *hash = bat_priv->orig_hash;
- struct hlist_node *walk, *safe;
+ struct hlist_node *node, *node_tmp;
struct hlist_head *head;
- struct element_t *bucket;
spinlock_t *list_lock; /* spinlock to protect write access */
struct orig_node *orig_node;
int i;
if (!hash)
return;
- spin_lock_bh(&bat_priv->orig_hash_lock);
-
/* for all origins... */
for (i = 0; i < hash->size; i++) {
head = &hash->table[i];
list_lock = &hash->list_locks[i];
spin_lock_bh(list_lock);
- hlist_for_each_entry_safe(bucket, walk, safe, head, hlist) {
- orig_node = bucket->data;
-
+ hlist_for_each_entry_safe(orig_node, node, node_tmp,
+ head, hash_entry) {
if (purge_orig_node(bat_priv, orig_node)) {
if (orig_node->gw_flags)
gw_node_delete(bat_priv, orig_node);
- hlist_del_rcu(walk);
- call_rcu(&bucket->rcu, bucket_free_orig_rcu);
+ hlist_del_rcu(node);
+ orig_node_free_ref(orig_node);
continue;
}
spin_unlock_bh(list_lock);
}
- spin_unlock_bh(&bat_priv->orig_hash_lock);
-
gw_node_purge(bat_priv);
gw_election(bat_priv);
struct net_device *net_dev = (struct net_device *)seq->private;
struct bat_priv *bat_priv = netdev_priv(net_dev);
struct hashtable_t *hash = bat_priv->orig_hash;
- struct hlist_node *walk, *node;
+ struct hlist_node *node, *node_tmp;
struct hlist_head *head;
- struct element_t *bucket;
struct orig_node *orig_node;
struct neigh_node *neigh_node;
int batman_count = 0;
"Originator", "last-seen", "#", TQ_MAX_VALUE, "Nexthop",
"outgoingIF", "Potential nexthops");
- spin_lock_bh(&bat_priv->orig_hash_lock);
-
for (i = 0; i < hash->size; i++) {
head = &hash->table[i];
rcu_read_lock();
- hlist_for_each_entry_rcu(bucket, walk, head, hlist) {
- orig_node = bucket->data;
-
+ hlist_for_each_entry_rcu(orig_node, node, head, hash_entry) {
if (!orig_node->router)
continue;
neigh_node->addr,
neigh_node->if_incoming->net_dev->name);
- hlist_for_each_entry_rcu(neigh_node, node,
+ hlist_for_each_entry_rcu(neigh_node, node_tmp,
&orig_node->neigh_list, list) {
seq_printf(seq, " %pM (%3i)", neigh_node->addr,
neigh_node->tq_avg);
rcu_read_unlock();
}
- spin_unlock_bh(&bat_priv->orig_hash_lock);
-
if ((batman_count == 0))
seq_printf(seq, "No batman nodes in range ...\n");
return 0;
}
-int orig_hash_add_if(struct batman_if *batman_if, int max_if_num)
+int orig_hash_add_if(struct hard_iface *hard_iface, int max_if_num)
{
- struct bat_priv *bat_priv = netdev_priv(batman_if->soft_iface);
+ struct bat_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
struct hashtable_t *hash = bat_priv->orig_hash;
- struct hlist_node *walk;
+ struct hlist_node *node;
struct hlist_head *head;
- struct element_t *bucket;
struct orig_node *orig_node;
int i, ret;
/* resize all orig nodes because orig_node->bcast_own(_sum) depend on
* if_num */
- spin_lock_bh(&bat_priv->orig_hash_lock);
-
for (i = 0; i < hash->size; i++) {
head = &hash->table[i];
rcu_read_lock();
- hlist_for_each_entry_rcu(bucket, walk, head, hlist) {
- orig_node = bucket->data;
-
+ hlist_for_each_entry_rcu(orig_node, node, head, hash_entry) {
spin_lock_bh(&orig_node->ogm_cnt_lock);
ret = orig_node_add_if(orig_node, max_if_num);
spin_unlock_bh(&orig_node->ogm_cnt_lock);
rcu_read_unlock();
}
- spin_unlock_bh(&bat_priv->orig_hash_lock);
return 0;
err:
rcu_read_unlock();
- spin_unlock_bh(&bat_priv->orig_hash_lock);
return -ENOMEM;
}
return 0;
}
-int orig_hash_del_if(struct batman_if *batman_if, int max_if_num)
+int orig_hash_del_if(struct hard_iface *hard_iface, int max_if_num)
{
- struct bat_priv *bat_priv = netdev_priv(batman_if->soft_iface);
+ struct bat_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
struct hashtable_t *hash = bat_priv->orig_hash;
- struct hlist_node *walk;
+ struct hlist_node *node;
struct hlist_head *head;
- struct element_t *bucket;
- struct batman_if *batman_if_tmp;
+ struct hard_iface *hard_iface_tmp;
struct orig_node *orig_node;
int i, ret;
/* resize all orig nodes because orig_node->bcast_own(_sum) depend on
* if_num */
- spin_lock_bh(&bat_priv->orig_hash_lock);
-
for (i = 0; i < hash->size; i++) {
head = &hash->table[i];
rcu_read_lock();
- hlist_for_each_entry_rcu(bucket, walk, head, hlist) {
- orig_node = bucket->data;
-
+ hlist_for_each_entry_rcu(orig_node, node, head, hash_entry) {
spin_lock_bh(&orig_node->ogm_cnt_lock);
ret = orig_node_del_if(orig_node, max_if_num,
- batman_if->if_num);
+ hard_iface->if_num);
spin_unlock_bh(&orig_node->ogm_cnt_lock);
if (ret == -1)
/* renumber remaining batman interfaces _inside_ of orig_hash_lock */
rcu_read_lock();
- list_for_each_entry_rcu(batman_if_tmp, &if_list, list) {
- if (batman_if_tmp->if_status == IF_NOT_IN_USE)
+ list_for_each_entry_rcu(hard_iface_tmp, &hardif_list, list) {
+ if (hard_iface_tmp->if_status == IF_NOT_IN_USE)
continue;
- if (batman_if == batman_if_tmp)
+ if (hard_iface == hard_iface_tmp)
continue;
- if (batman_if->soft_iface != batman_if_tmp->soft_iface)
+ if (hard_iface->soft_iface != hard_iface_tmp->soft_iface)
continue;
- if (batman_if_tmp->if_num > batman_if->if_num)
- batman_if_tmp->if_num--;
+ if (hard_iface_tmp->if_num > hard_iface->if_num)
+ hard_iface_tmp->if_num--;
}
rcu_read_unlock();
- batman_if->if_num = -1;
- spin_unlock_bh(&bat_priv->orig_hash_lock);
+ hard_iface->if_num = -1;
return 0;
err:
rcu_read_unlock();
- spin_unlock_bh(&bat_priv->orig_hash_lock);
return -ENOMEM;
}
git.openpandora.org / pandora-kernel.git / blobdiff