On ttvn increment all the collected changes have to be commited: - local clients marked with TT_CLIENT_ROAM have to be unmarked. - local clients marked with TT_CLIENT_PENDING have to be deleted.
Signed-off-by: Antonio Quartulli ordex@autistici.org --- send.c | 4 +-- translation-table.c | 80 ++++++++++++++++++++++++++++++++++++++++---------- translation-table.h | 1 + 3 files changed, 66 insertions(+), 19 deletions(-)
diff --git a/send.c b/send.c index 4b8e11b..6071599 100644 --- a/send.c +++ b/send.c @@ -310,9 +310,7 @@ void schedule_own_packet(struct hard_iface *hard_iface) /* if at least one change happened */ if (atomic_read(&bat_priv->tt_local_changes) > 0) { prepare_packet_buffer(bat_priv, hard_iface); - /* Increment the TTVN only once per OGM interval */ - atomic_inc(&bat_priv->ttvn); - bat_priv->tt_poss_change = false; + tt_commit_changes(bat_priv); }
/* if the changes have been sent enough times */ diff --git a/translation-table.c b/translation-table.c index cf26ee3..fb48f04 100644 --- a/translation-table.c +++ b/translation-table.c @@ -358,21 +358,6 @@ out: return ret; }
-static void tt_local_del(struct bat_priv *bat_priv, - struct tt_local_entry *tt_local_entry, - const char *message) -{ - bat_dbg(DBG_TT, bat_priv, "Deleting local tt entry (%pM): %s\n", - tt_local_entry->addr, message); - - atomic_dec(&bat_priv->num_local_tt); - - hash_remove(bat_priv->tt_local_hash, compare_ltt, choose_orig, - tt_local_entry->addr); - - tt_local_entry_free_ref(tt_local_entry); -} - void tt_local_remove(struct bat_priv *bat_priv, const uint8_t *addr, const char *message, bool roaming) { @@ -381,7 +366,7 @@ void tt_local_remove(struct bat_priv *bat_priv, const uint8_t *addr, tt_local_entry = tt_local_hash_find(bat_priv, addr);
if (!tt_local_entry) - goto out; + return;
tt_local_event(bat_priv, tt_local_entry->addr, tt_local_entry->flags | TT_CLIENT_DEL | @@ -1636,3 +1621,66 @@ void tt_free(struct bat_priv *bat_priv)
kfree(bat_priv->tt_buff); } + +/* This function will purge out the specified flags from all the entries in + * the given hash table */ +static void tt_purge_flags(struct hashtable_t *hash, uint16_t flags) +{ + int i; + struct hlist_head *head; + struct hlist_node *node; + struct tt_local_entry *tt_local_entry; + + for (i = 0; i < hash->size; i++) { + head = &hash->table[i]; + + rcu_read_lock(); + hlist_for_each_entry_rcu(tt_local_entry, node, + head, hash_entry) { + tt_local_entry->flags &= ~flags; + } + rcu_read_unlock(); + } + +} + +static void tt_purge_local_pending_clients(struct bat_priv *bat_priv) +{ + struct hashtable_t *hash = bat_priv->tt_local_hash; + struct tt_local_entry *tt_local_entry; + struct hlist_node *node, *node_tmp; + struct hlist_head *head; + spinlock_t *list_lock; /* protects write access to the hash lists */ + int i; + + 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(tt_local_entry, node, node_tmp, + head, hash_entry) { + if (!(tt_local_entry->flags & TT_CLIENT_PENDING)) + continue; + + bat_dbg(DBG_TT, bat_priv, "Deleting local tt entry " + "(%pM): pending\n", tt_local_entry->addr); + + atomic_dec(&bat_priv->num_local_tt); + hlist_del_rcu(node); + tt_local_entry_free_ref(tt_local_entry); + } + spin_unlock_bh(list_lock); + } + +} + +void tt_commit_changes(struct bat_priv *bat_priv) +{ + tt_purge_flags(bat_priv->tt_local_hash, TT_CLIENT_ROAM); + tt_purge_local_pending_clients(bat_priv); + + /* Increment the TTVN only once per OGM interval */ + atomic_inc(&bat_priv->ttvn); + bat_priv->tt_poss_change = false; +} diff --git a/translation-table.h b/translation-table.h index 460e583..d4122cb 100644 --- a/translation-table.h +++ b/translation-table.h @@ -61,5 +61,6 @@ void handle_tt_response(struct bat_priv *bat_priv, struct tt_query_packet *tt_response); void send_roam_adv(struct bat_priv *bat_priv, uint8_t *client, struct orig_node *orig_node); +void tt_commit_changes(struct bat_priv *bat_priv);
#endif /* _NET_BATMAN_ADV_TRANSLATION_TABLE_H_ */