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tipc: Update node-scope publications when network address is assigned

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Ensures that node-scope name publications that exist prior to the
configuration of a node's network address are properly re-initialized
with that address when it is assigned. TIPC's node-scope publications
are now tracked using a publications list like the lists used for
cluster-scope and zone-scope publications so they can be easily updated
when required.

The inclusion of node scope name publications in a conventional publication
list means that they must now also be withdrawn, just like cluster and zone
scope publications are currently withdrawn.  So some conditional tests on
scope ==/!= TIPC_NODE_SCOPE are inserted/removed accordingly.

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 a909804f7c
commit 1110b8d33a
2 changed files with 12 additions and 7 deletions
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14
net/tipc/name_distr.c
View File

@ -160,6 +160,9 @@ void tipc_named_publish(struct publication *publ)
list_add_tail(&publ->local_list, &publ_lists[publ->scope]->list);
publ_lists[publ->scope]->size++;
if (publ->scope == TIPC_NODE_SCOPE)
return;
buf = named_prepare_buf(PUBLICATION, ITEM_SIZE, 0);
if (!buf) {
warn("Publication distribution failure\n");
@ -183,6 +186,9 @@ void tipc_named_withdraw(struct publication *publ)
list_del(&publ->local_list);
publ_lists[publ->scope]->size--;
if (publ->scope == TIPC_NODE_SCOPE)
return;
buf = named_prepare_buf(WITHDRAWAL, ITEM_SIZE, 0);
if (!buf) {
warn("Withdrawal distribution failure\n");
@ -349,11 +355,11 @@ void tipc_named_recv(struct sk_buff *buf)
}
/**
* tipc_named_reinit - re-initialize local publication list
* tipc_named_reinit - re-initialize local publications
*
* This routine is called whenever TIPC networking is enabled.
* All existing publications by this node that have "cluster" or "zone" scope
* are updated to reflect the node's new network address.
* All name table entries published by this node are updated to reflect
* the node's new network address.
*/
void tipc_named_reinit(void)
@ -363,7 +369,7 @@ void tipc_named_reinit(void)
write_lock_bh(&tipc_nametbl_lock);
for (scope = TIPC_ZONE_SCOPE; scope <= TIPC_CLUSTER_SCOPE; scope++)
for (scope = TIPC_ZONE_SCOPE; scope <= TIPC_NODE_SCOPE; scope++)
list_for_each_entry(publ, &publ_lists[scope]->list, local_list)
publ->node = tipc_own_addr;

5
net/tipc/name_table.c
View File

@ -698,7 +698,7 @@ struct publication *tipc_nametbl_publish(u32 type, u32 lower, u32 upper,
table.local_publ_count++;
publ = tipc_nametbl_insert_publ(type, lower, upper, scope,
tipc_own_addr, port_ref, key);
if (publ && (scope != TIPC_NODE_SCOPE))
if (likely(publ))
tipc_named_publish(publ);
write_unlock_bh(&tipc_nametbl_lock);
return publ;
@ -716,8 +716,7 @@ int tipc_nametbl_withdraw(u32 type, u32 lower, u32 ref, u32 key)
publ = tipc_nametbl_remove_publ(type, lower, tipc_own_addr, ref, key);
if (likely(publ)) {
table.local_publ_count--;
if (publ->scope != TIPC_NODE_SCOPE)
tipc_named_withdraw(publ);
tipc_named_withdraw(publ);
write_unlock_bh(&tipc_nametbl_lock);
list_del_init(&publ->pport_list);
kfree(publ);