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tipc: Factor out name publication code to a separate function

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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>
This commit is contained in:
Allan Stephens 2012-04-17 17:57:52 -04:00 committed by Paul Gortmaker
parent 3f8375fee3
commit e11aa05971
1 changed files with 34 additions and 27 deletions
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61
net/tipc/name_distr.c
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@ -176,6 +176,39 @@ void tipc_named_withdraw(struct publication *publ)
named_cluster_distribute(buf);
}
/*
* named_distribute - prepare name info for bulk distribution to another node
*/
static void named_distribute(struct list_head *message_list, u32 node,
struct publ_list *pls, u32 max_item_buf)
{
struct publication *publ;
struct sk_buff *buf = NULL;
struct distr_item *item = NULL;
u32 left = 0;
u32 rest = pls->size * ITEM_SIZE;
list_for_each_entry(publ, &pls->list, local_list) {
if (!buf) {
left = (rest <= max_item_buf) ? rest : max_item_buf;
rest -= left;
buf = named_prepare_buf(PUBLICATION, left, node);
if (!buf) {
warn("Bulk publication failure\n");
return;
}
item = (struct distr_item *)msg_data(buf_msg(buf));
}
publ_to_item(item, publ);
item++;
left -= ITEM_SIZE;
if (!left) {
list_add_tail((struct list_head *)buf, message_list);
buf = NULL;
}
}
}
/**
* tipc_named_node_up - tell specified node about all publications by this node
*/
@ -184,13 +217,8 @@ void tipc_named_node_up(unsigned long nodearg)
{
struct tipc_node *n_ptr;
struct tipc_link *l_ptr;
struct publication *publ;
struct distr_item *item = NULL;
struct sk_buff *buf = NULL;
struct list_head message_list;
u32 node = (u32)nodearg;
u32 left = 0;
u32 rest;
u32 max_item_buf = 0;
/* compute maximum amount of publication data to send per message */
@ -214,28 +242,7 @@ void tipc_named_node_up(unsigned long nodearg)
INIT_LIST_HEAD(&message_list);
read_lock_bh(&tipc_nametbl_lock);
rest = publ_cluster.size * ITEM_SIZE;
list_for_each_entry(publ, &publ_cluster.list, local_list) {
if (!buf) {
left = (rest <= max_item_buf) ? rest : max_item_buf;
rest -= left;
buf = named_prepare_buf(PUBLICATION, left, node);
if (!buf) {
warn("Bulk publication distribution failure\n");
goto exit;
}
item = (struct distr_item *)msg_data(buf_msg(buf));
}
publ_to_item(item, publ);
item++;
left -= ITEM_SIZE;
if (!left) {
list_add_tail((struct list_head *)buf, &message_list);
buf = NULL;
}
}
exit:
named_distribute(&message_list, node, &publ_cluster, max_item_buf);
read_unlock_bh(&tipc_nametbl_lock);
tipc_link_send_names(&message_list, (u32)node);