mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-13 03:39:36 +00:00
tipc: reduce code dependency between binding table and node layer
The file name_distr.c currently contains three functions, named_cluster_distribute(), tipc_publ_subcscribe() and tipc_publ_unsubscribe() that all directly access fields in struct tipc_node. We want to eliminate such dependencies, so we move those functions to the file node.c and rename them to tipc_node_broadcast(), tipc_node_subscribe() and tipc_node_unsubscribe() respectively. Reviewed-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
5c10e97940
commit
1d7e1c2595
@ -118,6 +118,11 @@ static inline int tipc_netid(struct net *net)
|
||||
return tipc_net(net)->net_id;
|
||||
}
|
||||
|
||||
static inline struct list_head *tipc_nodes(struct net *net)
|
||||
{
|
||||
return &tipc_net(net)->node_list;
|
||||
}
|
||||
|
||||
static inline u16 mod(u16 x)
|
||||
{
|
||||
return x & 0xffffu;
|
||||
|
@ -84,31 +84,6 @@ static struct sk_buff *named_prepare_buf(struct net *net, u32 type, u32 size,
|
||||
return buf;
|
||||
}
|
||||
|
||||
void named_cluster_distribute(struct net *net, struct sk_buff *skb)
|
||||
{
|
||||
struct tipc_net *tn = net_generic(net, tipc_net_id);
|
||||
struct sk_buff *oskb;
|
||||
struct tipc_node *node;
|
||||
u32 dnode;
|
||||
|
||||
rcu_read_lock();
|
||||
list_for_each_entry_rcu(node, &tn->node_list, list) {
|
||||
dnode = node->addr;
|
||||
if (in_own_node(net, dnode))
|
||||
continue;
|
||||
if (!tipc_node_is_up(node))
|
||||
continue;
|
||||
oskb = pskb_copy(skb, GFP_ATOMIC);
|
||||
if (!oskb)
|
||||
break;
|
||||
msg_set_destnode(buf_msg(oskb), dnode);
|
||||
tipc_node_xmit_skb(net, oskb, dnode, 0);
|
||||
}
|
||||
rcu_read_unlock();
|
||||
|
||||
kfree_skb(skb);
|
||||
}
|
||||
|
||||
/**
|
||||
* tipc_named_publish - tell other nodes about a new publication by this node
|
||||
*/
|
||||
@ -226,42 +201,6 @@ void tipc_named_node_up(struct net *net, u32 dnode)
|
||||
tipc_node_xmit(net, &head, dnode, 0);
|
||||
}
|
||||
|
||||
static void tipc_publ_subscribe(struct net *net, struct publication *publ,
|
||||
u32 addr)
|
||||
{
|
||||
struct tipc_node *node;
|
||||
|
||||
if (in_own_node(net, addr))
|
||||
return;
|
||||
|
||||
node = tipc_node_find(net, addr);
|
||||
if (!node) {
|
||||
pr_warn("Node subscription rejected, unknown node 0x%x\n",
|
||||
addr);
|
||||
return;
|
||||
}
|
||||
|
||||
tipc_node_lock(node);
|
||||
list_add_tail(&publ->nodesub_list, &node->publ_list);
|
||||
tipc_node_unlock(node);
|
||||
tipc_node_put(node);
|
||||
}
|
||||
|
||||
static void tipc_publ_unsubscribe(struct net *net, struct publication *publ,
|
||||
u32 addr)
|
||||
{
|
||||
struct tipc_node *node;
|
||||
|
||||
node = tipc_node_find(net, addr);
|
||||
if (!node)
|
||||
return;
|
||||
|
||||
tipc_node_lock(node);
|
||||
list_del_init(&publ->nodesub_list);
|
||||
tipc_node_unlock(node);
|
||||
tipc_node_put(node);
|
||||
}
|
||||
|
||||
/**
|
||||
* tipc_publ_purge - remove publication associated with a failed node
|
||||
*
|
||||
@ -277,7 +216,7 @@ static void tipc_publ_purge(struct net *net, struct publication *publ, u32 addr)
|
||||
p = tipc_nametbl_remove_publ(net, publ->type, publ->lower,
|
||||
publ->node, publ->ref, publ->key);
|
||||
if (p)
|
||||
tipc_publ_unsubscribe(net, p, addr);
|
||||
tipc_node_unsubscribe(net, &p->nodesub_list, addr);
|
||||
spin_unlock_bh(&tn->nametbl_lock);
|
||||
|
||||
if (p != publ) {
|
||||
@ -317,7 +256,7 @@ static bool tipc_update_nametbl(struct net *net, struct distr_item *i,
|
||||
TIPC_CLUSTER_SCOPE, node,
|
||||
ntohl(i->ref), ntohl(i->key));
|
||||
if (publ) {
|
||||
tipc_publ_subscribe(net, publ, node);
|
||||
tipc_node_subscribe(net, &publ->nodesub_list, node);
|
||||
return true;
|
||||
}
|
||||
} else if (dtype == WITHDRAWAL) {
|
||||
@ -326,7 +265,7 @@ static bool tipc_update_nametbl(struct net *net, struct distr_item *i,
|
||||
node, ntohl(i->ref),
|
||||
ntohl(i->key));
|
||||
if (publ) {
|
||||
tipc_publ_unsubscribe(net, publ, node);
|
||||
tipc_node_unsubscribe(net, &publ->nodesub_list, node);
|
||||
kfree_rcu(publ, rcu);
|
||||
return true;
|
||||
}
|
||||
|
@ -69,7 +69,6 @@ struct distr_item {
|
||||
|
||||
struct sk_buff *tipc_named_publish(struct net *net, struct publication *publ);
|
||||
struct sk_buff *tipc_named_withdraw(struct net *net, struct publication *publ);
|
||||
void named_cluster_distribute(struct net *net, struct sk_buff *buf);
|
||||
void tipc_named_node_up(struct net *net, u32 dnode);
|
||||
void tipc_named_rcv(struct net *net, struct sk_buff_head *msg_queue);
|
||||
void tipc_named_reinit(struct net *net);
|
||||
|
@ -42,6 +42,7 @@
|
||||
#include "subscr.h"
|
||||
#include "bcast.h"
|
||||
#include "addr.h"
|
||||
#include "node.h"
|
||||
#include <net/genetlink.h>
|
||||
|
||||
#define TIPC_NAMETBL_SIZE 1024 /* must be a power of 2 */
|
||||
@ -677,7 +678,7 @@ struct publication *tipc_nametbl_publish(struct net *net, u32 type, u32 lower,
|
||||
spin_unlock_bh(&tn->nametbl_lock);
|
||||
|
||||
if (buf)
|
||||
named_cluster_distribute(net, buf);
|
||||
tipc_node_broadcast(net, buf);
|
||||
return publ;
|
||||
}
|
||||
|
||||
@ -709,7 +710,7 @@ int tipc_nametbl_withdraw(struct net *net, u32 type, u32 lower, u32 ref,
|
||||
spin_unlock_bh(&tn->nametbl_lock);
|
||||
|
||||
if (skb) {
|
||||
named_cluster_distribute(net, skb);
|
||||
tipc_node_broadcast(net, skb);
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
|
@ -234,6 +234,42 @@ void tipc_node_stop(struct net *net)
|
||||
spin_unlock_bh(&tn->node_list_lock);
|
||||
}
|
||||
|
||||
void tipc_node_subscribe(struct net *net, struct list_head *subscr, u32 addr)
|
||||
{
|
||||
struct tipc_node *n;
|
||||
|
||||
if (in_own_node(net, addr))
|
||||
return;
|
||||
|
||||
n = tipc_node_find(net, addr);
|
||||
if (!n) {
|
||||
pr_warn("Node subscribe rejected, unknown node 0x%x\n", addr);
|
||||
return;
|
||||
}
|
||||
tipc_node_lock(n);
|
||||
list_add_tail(subscr, &n->publ_list);
|
||||
tipc_node_unlock(n);
|
||||
tipc_node_put(n);
|
||||
}
|
||||
|
||||
void tipc_node_unsubscribe(struct net *net, struct list_head *subscr, u32 addr)
|
||||
{
|
||||
struct tipc_node *n;
|
||||
|
||||
if (in_own_node(net, addr))
|
||||
return;
|
||||
|
||||
n = tipc_node_find(net, addr);
|
||||
if (!n) {
|
||||
pr_warn("Node unsubscribe rejected, unknown node 0x%x\n", addr);
|
||||
return;
|
||||
}
|
||||
tipc_node_lock(n);
|
||||
list_del_init(subscr);
|
||||
tipc_node_unlock(n);
|
||||
tipc_node_put(n);
|
||||
}
|
||||
|
||||
int tipc_node_add_conn(struct net *net, u32 dnode, u32 port, u32 peer_port)
|
||||
{
|
||||
struct tipc_node *node;
|
||||
@ -1075,6 +1111,30 @@ int tipc_node_xmit_skb(struct net *net, struct sk_buff *skb, u32 dnode,
|
||||
return 0;
|
||||
}
|
||||
|
||||
void tipc_node_broadcast(struct net *net, struct sk_buff *skb)
|
||||
{
|
||||
struct sk_buff *txskb;
|
||||
struct tipc_node *n;
|
||||
u32 dst;
|
||||
|
||||
rcu_read_lock();
|
||||
list_for_each_entry_rcu(n, tipc_nodes(net), list) {
|
||||
dst = n->addr;
|
||||
if (in_own_node(net, dst))
|
||||
continue;
|
||||
if (!tipc_node_is_up(n))
|
||||
continue;
|
||||
txskb = pskb_copy(skb, GFP_ATOMIC);
|
||||
if (!txskb)
|
||||
break;
|
||||
msg_set_destnode(buf_msg(txskb), dst);
|
||||
tipc_node_xmit_skb(net, txskb, dst, 0);
|
||||
}
|
||||
rcu_read_unlock();
|
||||
|
||||
kfree_skb(skb);
|
||||
}
|
||||
|
||||
/**
|
||||
* tipc_node_bc_rcv - process TIPC broadcast packet arriving from off-node
|
||||
* @net: the applicable net namespace
|
||||
|
@ -149,6 +149,9 @@ int tipc_node_xmit(struct net *net, struct sk_buff_head *list, u32 dnode,
|
||||
int selector);
|
||||
int tipc_node_xmit_skb(struct net *net, struct sk_buff *skb, u32 dest,
|
||||
u32 selector);
|
||||
void tipc_node_subscribe(struct net *net, struct list_head *subscr, u32 addr);
|
||||
void tipc_node_unsubscribe(struct net *net, struct list_head *subscr, u32 addr);
|
||||
void tipc_node_broadcast(struct net *net, struct sk_buff *skb);
|
||||
int tipc_node_add_conn(struct net *net, u32 dnode, u32 port, u32 peer_port);
|
||||
void tipc_node_remove_conn(struct net *net, u32 dnode, u32 port);
|
||||
int tipc_nl_node_dump(struct sk_buff *skb, struct netlink_callback *cb);
|
||||
|
Loading…
Reference in New Issue
Block a user