tipc: Factor out name publication code to a separate function
This is done so that it can be reused with differing publication lists, instead of being hard coded to the cluster publicaton list. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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@ -176,6 +176,39 @@ void tipc_named_withdraw(struct publication *publ)
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named_cluster_distribute(buf);
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}
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/*
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* named_distribute - prepare name info for bulk distribution to another node
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*/
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static void named_distribute(struct list_head *message_list, u32 node,
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struct publ_list *pls, u32 max_item_buf)
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{
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struct publication *publ;
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struct sk_buff *buf = NULL;
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struct distr_item *item = NULL;
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u32 left = 0;
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u32 rest = pls->size * ITEM_SIZE;
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list_for_each_entry(publ, &pls->list, local_list) {
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if (!buf) {
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left = (rest <= max_item_buf) ? rest : max_item_buf;
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rest -= left;
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buf = named_prepare_buf(PUBLICATION, left, node);
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if (!buf) {
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warn("Bulk publication failure\n");
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return;
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}
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item = (struct distr_item *)msg_data(buf_msg(buf));
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}
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publ_to_item(item, publ);
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item++;
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left -= ITEM_SIZE;
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if (!left) {
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list_add_tail((struct list_head *)buf, message_list);
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buf = NULL;
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}
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}
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}
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/**
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* tipc_named_node_up - tell specified node about all publications by this node
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*/
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@ -184,13 +217,8 @@ void tipc_named_node_up(unsigned long nodearg)
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{
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struct tipc_node *n_ptr;
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struct tipc_link *l_ptr;
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struct publication *publ;
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struct distr_item *item = NULL;
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struct sk_buff *buf = NULL;
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struct list_head message_list;
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u32 node = (u32)nodearg;
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u32 left = 0;
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u32 rest;
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u32 max_item_buf = 0;
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/* compute maximum amount of publication data to send per message */
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@ -214,28 +242,7 @@ void tipc_named_node_up(unsigned long nodearg)
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INIT_LIST_HEAD(&message_list);
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read_lock_bh(&tipc_nametbl_lock);
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rest = publ_cluster.size * ITEM_SIZE;
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list_for_each_entry(publ, &publ_cluster.list, local_list) {
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if (!buf) {
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left = (rest <= max_item_buf) ? rest : max_item_buf;
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rest -= left;
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buf = named_prepare_buf(PUBLICATION, left, node);
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if (!buf) {
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warn("Bulk publication distribution failure\n");
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goto exit;
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}
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item = (struct distr_item *)msg_data(buf_msg(buf));
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}
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publ_to_item(item, publ);
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item++;
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left -= ITEM_SIZE;
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if (!left) {
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list_add_tail((struct list_head *)buf, &message_list);
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buf = NULL;
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}
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}
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exit:
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named_distribute(&message_list, node, &publ_cluster, max_item_buf);
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read_unlock_bh(&tipc_nametbl_lock);
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tipc_link_send_names(&message_list, (u32)node);
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