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tipc: make tipc node table aware of net namespace

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Global variables associated with node table are below:
- node table list (node_htable)
- node hash table list (tipc_node_list)
- node table lock (node_list_lock)
- node number counter (tipc_num_nodes)
- node link number counter (tipc_num_links)

To make node table support namespace, above global variables must be
moved to tipc_net structure in order to keep secret for different
namespaces. As a consequence, these variables are allocated and
initialized when namespace is created, and deallocated when namespace
is destroyed. After the change, functions associated with these
variables have to utilize a namespace pointer to access them. So
adding namespace pointer as a parameter of these functions is the
major change made in the commit.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Tested-by: Tero Aho <Tero.Aho@coriant.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ying Xue
2015-01-09 15:27:05 +08:00
committed by David S. Miller
parent c93d3baa24
commit f2f9800d49
21 changed files with 329 additions and 244 deletions
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16
net/tipc/name_table.c
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@@ -650,8 +650,9 @@ exit:
/*
* tipc_nametbl_publish - add name publication to network name tables
*/
struct publication *tipc_nametbl_publish(u32 type, u32 lower, u32 upper,
u32 scope, u32 port_ref, u32 key)
struct publication *tipc_nametbl_publish(struct net *net, u32 type, u32 lower,
u32 upper, u32 scope, u32 port_ref,
u32 key)
{
struct publication *publ;
struct sk_buff *buf = NULL;
@@ -670,19 +671,20 @@ struct publication *tipc_nametbl_publish(u32 type, u32 lower, u32 upper,
tipc_nametbl->local_publ_count++;
buf = tipc_named_publish(publ);
/* Any pending external events? */
tipc_named_process_backlog();
tipc_named_process_backlog(net);
}
spin_unlock_bh(&tipc_nametbl_lock);
if (buf)
named_cluster_distribute(buf);
named_cluster_distribute(net, buf);
return publ;
}
/**
* tipc_nametbl_withdraw - withdraw name publication from network name tables
*/
int tipc_nametbl_withdraw(u32 type, u32 lower, u32 ref, u32 key)
int tipc_nametbl_withdraw(struct net *net, u32 type, u32 lower, u32 ref,
u32 key)
{
struct publication *publ;
struct sk_buff *skb = NULL;
@@ -693,7 +695,7 @@ int tipc_nametbl_withdraw(u32 type, u32 lower, u32 ref, u32 key)
tipc_nametbl->local_publ_count--;
skb = tipc_named_withdraw(publ);
/* Any pending external events? */
tipc_named_process_backlog();
tipc_named_process_backlog(net);
list_del_init(&publ->pport_list);
kfree_rcu(publ, rcu);
} else {
@@ -704,7 +706,7 @@ int tipc_nametbl_withdraw(u32 type, u32 lower, u32 ref, u32 key)
spin_unlock_bh(&tipc_nametbl_lock);
if (skb) {
named_cluster_distribute(skb);
named_cluster_distribute(net, skb);
return 1;
}
return 0;