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tipc: merge two lists in struct publication

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The size of struct publication can be reduced further. Membership in
lists 'nodesub_list' and 'local_list' is mutually exlusive, in that
remote publications use the former and local publications the latter.
We replace the two lists with one single, named 'binding_node' which
reflects what it really is.

Acked-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:
Jon Maloy 2018-03-15 16:48:54 +01:00 committed by David S. Miller
parent ba765ec637
commit 935439cc48
2 changed files with 12 additions and 13 deletions
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20
net/tipc/name_distr.c
View File

@ -91,10 +91,10 @@ struct sk_buff *tipc_named_publish(struct net *net, struct publication *publ)
struct sk_buff *skb;
if (publ->scope == TIPC_NODE_SCOPE) {
list_add_tail_rcu(&publ->local_list, &nt->node_scope);
list_add_tail_rcu(&publ->binding_node, &nt->node_scope);
return NULL;
}
list_add_tail_rcu(&publ->local_list, &nt->cluster_scope);
list_add_tail_rcu(&publ->binding_node, &nt->cluster_scope);
skb = named_prepare_buf(net, PUBLICATION, ITEM_SIZE, 0);
if (!skb) {
@ -115,7 +115,7 @@ struct sk_buff *tipc_named_withdraw(struct net *net, struct publication *publ)
struct sk_buff *buf;
struct distr_item *item;
list_del(&publ->local_list);
list_del(&publ->binding_node);
if (publ->scope == TIPC_NODE_SCOPE)
return NULL;
@ -147,7 +147,7 @@ static void named_distribute(struct net *net, struct sk_buff_head *list,
ITEM_SIZE) * ITEM_SIZE;
u32 msg_rem = msg_dsz;
list_for_each_entry(publ, pls, local_list) {
list_for_each_entry(publ, pls, binding_node) {
/* Prepare next buffer: */
if (!skb) {
skb = named_prepare_buf(net, PUBLICATION, msg_rem,
@ -211,7 +211,7 @@ 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_node_unsubscribe(net, &p->nodesub_list, addr);
tipc_node_unsubscribe(net, &p->binding_node, addr);
spin_unlock_bh(&tn->nametbl_lock);
if (p != publ) {
@ -246,7 +246,7 @@ void tipc_publ_notify(struct net *net, struct list_head *nsub_list, u32 addr)
{
struct publication *publ, *tmp;
list_for_each_entry_safe(publ, tmp, nsub_list, nodesub_list)
list_for_each_entry_safe(publ, tmp, nsub_list, binding_node)
tipc_publ_purge(net, publ, addr);
tipc_dist_queue_purge(net, addr);
}
@ -270,7 +270,7 @@ 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_node_subscribe(net, &publ->nodesub_list, node);
tipc_node_subscribe(net, &publ->binding_node, node);
return true;
}
} else if (dtype == WITHDRAWAL) {
@ -279,7 +279,7 @@ static bool tipc_update_nametbl(struct net *net, struct distr_item *i,
node, ntohl(i->ref),
ntohl(i->key));
if (publ) {
tipc_node_unsubscribe(net, &publ->nodesub_list, node);
tipc_node_unsubscribe(net, &publ->binding_node, node);
kfree_rcu(publ, rcu);
return true;
}
@ -385,9 +385,9 @@ void tipc_named_reinit(struct net *net)
spin_lock_bh(&tn->nametbl_lock);
list_for_each_entry_rcu(publ, &nt->node_scope, local_list)
list_for_each_entry_rcu(publ, &nt->node_scope, binding_node)
publ->node = tn->own_addr;
list_for_each_entry_rcu(publ, &nt->cluster_scope, local_list)
list_for_each_entry_rcu(publ, &nt->cluster_scope, binding_node)
publ->node = tn->own_addr;
spin_unlock_bh(&tn->nametbl_lock);

5
net/tipc/name_table.h
View File

@ -1,7 +1,7 @@
/*
* net/tipc/name_table.h: Include file for TIPC name table code
*
* Copyright (c) 2000-2006, 2014-2015, Ericsson AB
* Copyright (c) 2000-2006, 2014-2018, Ericsson AB
* Copyright (c) 2004-2005, 2010-2011, Wind River Systems
* All rights reserved.
*
@ -76,8 +76,7 @@ struct publication {
u32 node;
u32 ref;
u32 key;
struct list_head nodesub_list;
struct list_head local_list;
struct list_head binding_node;
struct list_head pport_list;
struct list_head node_list;
struct list_head cluster_list;