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tipc: some name changes

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We rename some lists and fields in struct publication both to make
the naming more consistent and to better reflect their roles. We
also update the descriptions of those lists.

node_list -> local_publ
cluster_list -> all_publ
pport_list -> binding_sock
ref -> port

There are no functional changes in this commit.

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 16:48:55 +01:00 committed by David S. Miller
parent 935439cc48
commit e50e73e107
5 changed files with 106 additions and 103 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
net/tipc/name_distr.c
View File

@ -56,7 +56,7 @@ static void publ_to_item(struct distr_item *i, struct publication *p)
i->type = htonl(p->type);
i->lower = htonl(p->lower);
i->upper = htonl(p->upper);
i->ref = htonl(p->ref);
i->port = htonl(p->port);
i->key = htonl(p->key);
}
@ -209,15 +209,15 @@ static void tipc_publ_purge(struct net *net, struct publication *publ, u32 addr)
spin_lock_bh(&tn->nametbl_lock);
p = tipc_nametbl_remove_publ(net, publ->type, publ->lower,
publ->node, publ->ref, publ->key);
publ->node, publ->port, publ->key);
if (p)
tipc_node_unsubscribe(net, &p->binding_node, addr);
spin_unlock_bh(&tn->nametbl_lock);
if (p != publ) {
pr_err("Unable to remove publication from failed node\n"
" (type=%u, lower=%u, node=0x%x, ref=%u, key=%u)\n",
publ->type, publ->lower, publ->node, publ->ref,
" (type=%u, lower=%u, node=0x%x, port=%u, key=%u)\n",
publ->type, publ->lower, publ->node, publ->port,
publ->key);
}
@ -268,7 +268,7 @@ static bool tipc_update_nametbl(struct net *net, struct distr_item *i,
ntohl(i->lower),
ntohl(i->upper),
TIPC_CLUSTER_SCOPE, node,
ntohl(i->ref), ntohl(i->key));
ntohl(i->port), ntohl(i->key));
if (publ) {
tipc_node_subscribe(net, &publ->binding_node, node);
return true;
@ -276,7 +276,7 @@ static bool tipc_update_nametbl(struct net *net, struct distr_item *i,
} else if (dtype == WITHDRAWAL) {
publ = tipc_nametbl_remove_publ(net, ntohl(i->type),
ntohl(i->lower),
node, ntohl(i->ref),
node, ntohl(i->port),
ntohl(i->key));
if (publ) {
tipc_node_unsubscribe(net, &publ->binding_node, node);

2
net/tipc/name_distr.h
View File

@ -63,7 +63,7 @@ struct distr_item {
__be32 type;
__be32 lower;
__be32 upper;
__be32 ref;
__be32 port;
__be32 key;
};

143
net/tipc/name_table.c
View File

@ -1,7 +1,7 @@
/*
* net/tipc/name_table.c: TIPC name table code
*
* Copyright (c) 2000-2006, 2014-2015, Ericsson AB
* Copyright (c) 2000-2006, 2014-2018, Ericsson AB
* Copyright (c) 2004-2008, 2010-2014, Wind River Systems
* All rights reserved.
*
@ -51,11 +51,11 @@
/**
* struct name_info - name sequence publication info
* @node_list: list of publications on own node of this <type,lower,upper>
* @cluster_list: list of all publications of this <type,lower,upper>
* @all_publ: list of all publications of this <type,lower,upper>
*/
struct name_info {
struct list_head node_list;
struct list_head cluster_list;
struct list_head local_publ;
struct list_head all_publ;
};
/**
@ -102,7 +102,7 @@ static int hash(int x)
* publ_create - create a publication structure
*/
static struct publication *publ_create(u32 type, u32 lower, u32 upper,
u32 scope, u32 node, u32 port_ref,
u32 scope, u32 node, u32 port,
u32 key)
{
struct publication *publ = kzalloc(sizeof(*publ), GFP_ATOMIC);
@ -116,9 +116,9 @@ static struct publication *publ_create(u32 type, u32 lower, u32 upper,
publ->upper = upper;
publ->scope = scope;
publ->node = node;
publ->ref = port_ref;
publ->port = port;
publ->key = key;
INIT_LIST_HEAD(&publ->pport_list);
INIT_LIST_HEAD(&publ->binding_sock);
return publ;
}
@ -237,9 +237,9 @@ static struct publication *tipc_nameseq_insert_publ(struct net *net,
info = sseq->info;
/* Check if an identical publication already exists */
list_for_each_entry(publ, &info->cluster_list, cluster_list) {
if ((publ->ref == port) && (publ->key == key) &&
(!publ->node || (publ->node == node)))
list_for_each_entry(publ, &info->all_publ, all_publ) {
if (publ->port == port && publ->key == key &&
(!publ->node || publ->node == node))
return NULL;
}
} else {
@ -278,8 +278,8 @@ static struct publication *tipc_nameseq_insert_publ(struct net *net,
return NULL;
}
INIT_LIST_HEAD(&info->node_list);
INIT_LIST_HEAD(&info->cluster_list);
INIT_LIST_HEAD(&info->local_publ);
INIT_LIST_HEAD(&info->all_publ);
/* Insert new sub-sequence */
sseq = &nseq->sseqs[inspos];
@ -298,15 +298,15 @@ static struct publication *tipc_nameseq_insert_publ(struct net *net,
if (!publ)
return NULL;
list_add(&publ->cluster_list, &info->cluster_list);
list_add(&publ->all_publ, &info->all_publ);
if (in_own_node(net, node))
list_add(&publ->node_list, &info->node_list);
list_add(&publ->local_publ, &info->local_publ);
/* Any subscriptions waiting for notification? */
list_for_each_entry_safe(s, st, &nseq->subscriptions, nameseq_list) {
tipc_sub_report_overlap(s, publ->lower, publ->upper,
TIPC_PUBLISHED, publ->ref,
TIPC_PUBLISHED, publ->port,
publ->node, publ->scope,
created_subseq);
}
@ -327,7 +327,7 @@ static struct publication *tipc_nameseq_insert_publ(struct net *net,
static struct publication *tipc_nameseq_remove_publ(struct net *net,
struct name_seq *nseq,
u32 inst, u32 node,
u32 ref, u32 key)
u32 port, u32 key)
{
struct publication *publ;
struct sub_seq *sseq = nameseq_find_subseq(nseq, inst);
@ -342,20 +342,20 @@ static struct publication *tipc_nameseq_remove_publ(struct net *net,
info = sseq->info;
/* Locate publication, if it exists */
list_for_each_entry(publ, &info->cluster_list, cluster_list) {
if ((publ->key == key) && (publ->ref == ref) &&
(!publ->node || (publ->node == node)))
list_for_each_entry(publ, &info->all_publ, all_publ) {
if (publ->key == key && publ->port == port &&
(!publ->node || publ->node == node))
goto found;
}
return NULL;
found:
list_del(&publ->cluster_list);
list_del(&publ->all_publ);
if (in_own_node(net, node))
list_del(&publ->node_list);
list_del(&publ->local_publ);
/* Contract subseq list if no more publications for that subseq */
if (list_empty(&info->cluster_list)) {
if (list_empty(&info->all_publ)) {
kfree(info);
free = &nseq->sseqs[nseq->first_free--];
memmove(sseq, sseq + 1, (free - (sseq + 1)) * sizeof(*sseq));
@ -365,8 +365,9 @@ found:
/* Notify any waiting subscriptions */
list_for_each_entry_safe(s, st, &nseq->subscriptions, nameseq_list) {
tipc_sub_report_overlap(s, publ->lower, publ->upper,
TIPC_WITHDRAWN, publ->ref, publ->node,
publ->scope, removed_subseq);
TIPC_WITHDRAWN, publ->port,
publ->node, publ->scope,
removed_subseq);
}
return publ;
@ -402,12 +403,12 @@ static void tipc_nameseq_subscribe(struct name_seq *nseq,
struct name_info *info = sseq->info;
int must_report = 1;
list_for_each_entry(crs, &info->cluster_list,
cluster_list) {
list_for_each_entry(crs, &info->all_publ, all_publ) {
tipc_sub_report_overlap(sub, sseq->lower,
sseq->upper,
TIPC_PUBLISHED,
crs->ref, crs->node,
crs->port,
crs->node,
crs->scope,
must_report);
must_report = 0;
@ -460,7 +461,7 @@ struct publication *tipc_nametbl_insert_publ(struct net *net, u32 type,
}
struct publication *tipc_nametbl_remove_publ(struct net *net, u32 type,
u32 lower, u32 node, u32 ref,
u32 lower, u32 node, u32 port,
u32 key)
{
struct publication *publ;
@ -470,7 +471,7 @@ struct publication *tipc_nametbl_remove_publ(struct net *net, u32 type,
return NULL;
spin_lock_bh(&seq->lock);
publ = tipc_nameseq_remove_publ(net, seq, lower, node, ref, key);
publ = tipc_nameseq_remove_publ(net, seq, lower, node, port, key);
if (!seq->first_free && list_empty(&seq->subscriptions)) {
hlist_del_init_rcu(&seq->ns_list);
kfree(seq->sseqs);
@ -503,7 +504,7 @@ u32 tipc_nametbl_translate(struct net *net, u32 type, u32 instance,
struct name_info *info;
struct publication *publ;
struct name_seq *seq;
u32 ref = 0;
u32 port = 0;
u32 node = 0;
if (!tipc_in_scope(*destnode, tn->own_addr))
@ -521,42 +522,42 @@ u32 tipc_nametbl_translate(struct net *net, u32 type, u32 instance,
/* Closest-First Algorithm */
if (likely(!*destnode)) {
if (!list_empty(&info->node_list)) {
publ = list_first_entry(&info->node_list,
if (!list_empty(&info->local_publ)) {
publ = list_first_entry(&info->local_publ,
struct publication,
node_list);
list_move_tail(&publ->node_list,
&info->node_list);
local_publ);
list_move_tail(&publ->local_publ,
&info->local_publ);
} else {
publ = list_first_entry(&info->cluster_list,
publ = list_first_entry(&info->all_publ,
struct publication,
cluster_list);
list_move_tail(&publ->cluster_list,
&info->cluster_list);
all_publ);
list_move_tail(&publ->all_publ,
&info->all_publ);
}
}
/* Round-Robin Algorithm */
else if (*destnode == tn->own_addr) {
if (list_empty(&info->node_list))
if (list_empty(&info->local_publ))
goto no_match;
publ = list_first_entry(&info->node_list, struct publication,
node_list);
list_move_tail(&publ->node_list, &info->node_list);
publ = list_first_entry(&info->local_publ, struct publication,
local_publ);
list_move_tail(&publ->local_publ, &info->local_publ);
} else {
publ = list_first_entry(&info->cluster_list, struct publication,
cluster_list);
list_move_tail(&publ->cluster_list, &info->cluster_list);
publ = list_first_entry(&info->all_publ, struct publication,
all_publ);
list_move_tail(&publ->all_publ, &info->all_publ);
}
ref = publ->ref;
port = publ->port;
node = publ->node;
no_match:
spin_unlock_bh(&seq->lock);
not_found:
rcu_read_unlock();
*destnode = node;
return ref;
return port;
}
bool tipc_nametbl_lookup(struct net *net, u32 type, u32 instance, u32 scope,
@ -578,17 +579,16 @@ bool tipc_nametbl_lookup(struct net *net, u32 type, u32 instance, u32 scope,
sseq = nameseq_find_subseq(seq, instance);
if (likely(sseq)) {
info = sseq->info;
list_for_each_entry(publ, &info->cluster_list, cluster_list) {
list_for_each_entry(publ, &info->all_publ, all_publ) {
if (publ->scope != scope)
continue;
if (publ->ref == exclude && publ->node == self)
if (publ->port == exclude && publ->node == self)
continue;
tipc_dest_push(dsts, publ->node, publ->ref);
tipc_dest_push(dsts, publ->node, publ->port);
(*dstcnt)++;
if (all)
continue;
list_move_tail(&publ->cluster_list,
&info->cluster_list);
list_move_tail(&publ->all_publ, &info->all_publ);
break;
}
}
@ -619,9 +619,9 @@ void tipc_nametbl_mc_lookup(struct net *net, u32 type, u32 lower, u32 upper,
if (sseq->lower > upper)
break;
info = sseq->info;
list_for_each_entry(p, &info->node_list, node_list) {
list_for_each_entry(p, &info->local_publ, local_publ) {
if (p->scope == scope || (!exact && p->scope < scope))
tipc_dest_push(dports, 0, p->ref);
tipc_dest_push(dports, 0, p->port);
}
}
spin_unlock_bh(&seq->lock);
@ -651,7 +651,7 @@ void tipc_nametbl_lookup_dst_nodes(struct net *net, u32 type, u32 lower,
stop = seq->sseqs + seq->first_free;
for (; sseq != stop && sseq->lower <= upper; sseq++) {
info = sseq->info;
list_for_each_entry(publ, &info->cluster_list, cluster_list) {
list_for_each_entry(publ, &info->all_publ, all_publ) {
tipc_nlist_add(nodes, publ->node);
}
}
@ -680,10 +680,10 @@ void tipc_nametbl_build_group(struct net *net, struct tipc_group *grp,
stop = seq->sseqs + seq->first_free;
for (; sseq != stop; sseq++) {
info = sseq->info;
list_for_each_entry(p, &info->cluster_list, cluster_list) {
list_for_each_entry(p, &info->all_publ, all_publ) {
if (p->scope != scope)
continue;
tipc_group_add_member(grp, p->node, p->ref, p->lower);
tipc_group_add_member(grp, p->node, p->port, p->lower);
}
}
spin_unlock_bh(&seq->lock);
@ -728,7 +728,7 @@ struct publication *tipc_nametbl_publish(struct net *net, u32 type, u32 lower,
/**
* tipc_nametbl_withdraw - withdraw name publication from network name tables
*/
int tipc_nametbl_withdraw(struct net *net, u32 type, u32 lower, u32 ref,
int tipc_nametbl_withdraw(struct net *net, u32 type, u32 lower, u32 port,
u32 key)
{
struct publication *publ;
@ -737,18 +737,18 @@ int tipc_nametbl_withdraw(struct net *net, u32 type, u32 lower, u32 ref,
spin_lock_bh(&tn->nametbl_lock);
publ = tipc_nametbl_remove_publ(net, type, lower, tn->own_addr,
ref, key);
port, key);
if (likely(publ)) {
tn->nametbl->local_publ_count--;
skb = tipc_named_withdraw(net, publ);
/* Any pending external events? */
tipc_named_process_backlog(net);
list_del_init(&publ->pport_list);
list_del_init(&publ->binding_sock);
kfree_rcu(publ, rcu);
} else {
pr_err("Unable to remove local publication\n"
"(type=%u, lower=%u, ref=%u, key=%u)\n",
type, lower, ref, key);
"(type=%u, lower=%u, port=%u, key=%u)\n",
type, lower, port, key);
}
spin_unlock_bh(&tn->nametbl_lock);
@ -851,10 +851,9 @@ static void tipc_purge_publications(struct net *net, struct name_seq *seq)
spin_lock_bh(&seq->lock);
sseq = seq->sseqs;
info = sseq->info;
list_for_each_entry_safe(publ, safe, &info->cluster_list,
cluster_list) {
list_for_each_entry_safe(publ, safe, &info->all_publ, all_publ) {
tipc_nameseq_remove_publ(net, seq, publ->lower, publ->node,
publ->ref, publ->key);
publ->port, publ->key);
kfree_rcu(publ, rcu);
}
hlist_del_init_rcu(&seq->ns_list);
@ -901,19 +900,17 @@ static int __tipc_nl_add_nametable_publ(struct tipc_nl_msg *msg,
struct publication *p;
if (*last_publ) {
list_for_each_entry(p, &sseq->info->cluster_list,
cluster_list)
list_for_each_entry(p, &sseq->info->all_publ, all_publ)
if (p->key == *last_publ)
break;
if (p->key != *last_publ)
return -EPIPE;
} else {
p = list_first_entry(&sseq->info->cluster_list,
struct publication,
cluster_list);
p = list_first_entry(&sseq->info->all_publ, struct publication,
all_publ);
}
list_for_each_entry_from(p, &sseq->info->cluster_list, cluster_list) {
list_for_each_entry_from(p, &sseq->info->all_publ, all_publ) {
*last_publ = p->key;
hdr = genlmsg_put(msg->skb, msg->portid, msg->seq,
@ -940,7 +937,7 @@ static int __tipc_nl_add_nametable_publ(struct tipc_nl_msg *msg,
goto publ_msg_full;
if (nla_put_u32(msg->skb, TIPC_NLA_PUBL_NODE, p->node))
goto publ_msg_full;
if (nla_put_u32(msg->skb, TIPC_NLA_PUBL_REF, p->ref))
if (nla_put_u32(msg->skb, TIPC_NLA_PUBL_REF, p->port))
goto publ_msg_full;
if (nla_put_u32(msg->skb, TIPC_NLA_PUBL_KEY, p->key))
goto publ_msg_full;

38
net/tipc/name_table.h
View File

@ -54,19 +54,22 @@ struct tipc_group;
* @type: name sequence type
* @lower: name sequence lower bound
* @upper: name sequence upper bound
* @scope: scope of publication
* @node: network address of publishing port's node
* @ref: publishing port
* @key: publication key
* @nodesub_list: subscription to "node down" event (off-node publication only)
* @local_list: adjacent entries in list of publications made by this node
* @pport_list: adjacent entries in list of publications made by this port
* @node_list: adjacent matching name seq publications with >= node scope
* @cluster_list: adjacent matching name seq publications with >= cluster scope
* @zone_list: adjacent matching name seq publications with >= zone scope
* @scope: scope of publication, TIPC_NODE_SCOPE or TIPC_CLUSTER_SCOPE
* @node: network address of publishing socket's node
* @port: publishing port
* @key: publication key, unique across the cluster
* @binding_node: all publications from the same node which bound this one
* - Remote publications: in node->publ_list
* Used by node/name distr to withdraw publications when node is lost
* - Local/node scope publications: in name_table->node_scope list
* - Local/cluster scope publications: in name_table->cluster_scope list
* @binding_sock: all publications from the same socket which bound this one
* Used by socket to withdraw publications when socket is unbound/released
* @local_publ: list of identical publications made from this node
* Used by closest_first and multicast receive lookup algorithms
* @all_publ: all publications identical to this one, whatever node and scope
* Used by round-robin lookup algorithm
* @rcu: RCU callback head used for deferred freeing
*
* Note that the node list, cluster list, and zone list are circular lists.
*/
struct publication {
u32 type;
@ -74,12 +77,12 @@ struct publication {
u32 upper;
u32 scope;
u32 node;
u32 ref;
u32 port;
u32 key;
struct list_head binding_node;
struct list_head pport_list;
struct list_head node_list;
struct list_head cluster_list;
struct list_head binding_sock;
struct list_head local_publ;
struct list_head all_publ;
struct rcu_head rcu;
};
@ -87,7 +90,10 @@ struct publication {
* struct name_table - table containing all existing port name publications
* @seq_hlist: name sequence hash lists
* @node_scope: all local publications with node scope
* - used by name_distr during re-init of name table
* @cluster_scope: all local publications with cluster scope
* - used by name_distr to send bulk updates to new nodes
* - used by name_distr during re-init of name table
* @local_publ_count: number of publications issued by this node
*/
struct name_table {

14
net/tipc/socket.c
View File

@ -2605,7 +2605,7 @@ static int tipc_sk_publish(struct tipc_sock *tsk, uint scope,
if (unlikely(!publ))
return -EINVAL;
list_add(&publ->pport_list, &tsk->publications);
list_add(&publ->binding_sock, &tsk->publications);
tsk->pub_count++;
tsk->published = 1;
return 0;
@ -2622,7 +2622,7 @@ static int tipc_sk_withdraw(struct tipc_sock *tsk, uint scope,
if (scope != TIPC_NODE_SCOPE)
scope = TIPC_CLUSTER_SCOPE;
list_for_each_entry_safe(publ, safe, &tsk->publications, pport_list) {
list_for_each_entry_safe(publ, safe, &tsk->publications, binding_sock) {
if (seq) {
if (publ->scope != scope)
continue;
@ -2633,12 +2633,12 @@ static int tipc_sk_withdraw(struct tipc_sock *tsk, uint scope,
if (publ->upper != seq->upper)
break;
tipc_nametbl_withdraw(net, publ->type, publ->lower,
publ->ref, publ->key);
publ->port, publ->key);
rc = 0;
break;
}
tipc_nametbl_withdraw(net, publ->type, publ->lower,
publ->ref, publ->key);
publ->port, publ->key);
rc = 0;
}
if (list_empty(&tsk->publications))
@ -3292,7 +3292,7 @@ static int __tipc_nl_list_sk_publ(struct sk_buff *skb,
struct publication *p;
if (*last_publ) {
list_for_each_entry(p, &tsk->publications, pport_list) {
list_for_each_entry(p, &tsk->publications, binding_sock) {
if (p->key == *last_publ)
break;
}
@ -3309,10 +3309,10 @@ static int __tipc_nl_list_sk_publ(struct sk_buff *skb,
}
} else {
p = list_first_entry(&tsk->publications, struct publication,
pport_list);
binding_sock);
}
list_for_each_entry_from(p, &tsk->publications, pport_list) {
list_for_each_entry_from(p, &tsk->publications, binding_sock) {
err = __tipc_nl_add_sk_publ(skb, cb, p);
if (err) {
*last_publ = p->key;