xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

tipc: make struct tipc_server private for server.c

Browse Source 
In order to narrow the interface and dependencies between the topology
server and the subscription/binding table functionality we move struct
tipc_server inside the file server.c. This requires some code
adaptations in other files, but those are mostly minor.

The most important change is that we have to move the start/stop
functions for the topology server to server.c, where they logically
belong anyway.

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
2018-02-15 10:40:49 +01:00
committed by David S. Miller
parent da0a75e86a
commit 5c45ab24ac
5 changed files with 110 additions and 128 deletions
Download Patch File Download Diff File Expand all files Collapse all files

64
net/tipc/subscr.c
View File

@@ -51,7 +51,7 @@ static void tipc_sub_send_event(struct tipc_subscription *sub,
tipc_evt_write(evt, found_upper, found_upper);
tipc_evt_write(evt, port.ref, port);
tipc_evt_write(evt, port.node, node);
tipc_conn_queue_evt(sub->server, sub->conid, event, evt);
tipc_conn_queue_evt(sub->net, sub->conid, event, evt);
}
/**
@@ -114,14 +114,7 @@ static void tipc_sub_timeout(struct timer_list *t)
static void tipc_sub_kref_release(struct kref *kref)
{
struct tipc_subscription *sub;
struct tipc_net *tn;
sub = container_of(kref, struct tipc_subscription, kref);
tn = tipc_net(sub->server->net);
atomic_dec(&tn->subscription_count);
kfree(sub);
kfree(container_of(kref, struct tipc_subscription, kref));
}
void tipc_sub_put(struct tipc_subscription *subscription)
@@ -134,19 +127,14 @@ void tipc_sub_get(struct tipc_subscription *subscription)
kref_get(&subscription->kref);
}
struct tipc_subscription *tipc_sub_subscribe(struct tipc_server *srv,
struct tipc_subscription *tipc_sub_subscribe(struct net *net,
struct tipc_subscr *s,
int conid)
{
struct tipc_net *tn = tipc_net(srv->net);
u32 filter = tipc_sub_read(s, filter);
struct tipc_subscription *sub;
u32 timeout;
if (atomic_read(&tn->subscription_count) >= TIPC_MAX_SUBSCR) {
pr_warn("Subscription rejected, max (%u)\n", TIPC_MAX_SUBSCR);
return NULL;
}
if ((filter & TIPC_SUB_PORTS && filter & TIPC_SUB_SERVICE) ||
(tipc_sub_read(s, seq.lower) > tipc_sub_read(s, seq.upper))) {
pr_warn("Subscription rejected, illegal request\n");
@@ -157,12 +145,11 @@ struct tipc_subscription *tipc_sub_subscribe(struct tipc_server *srv,
pr_warn("Subscription rejected, no memory\n");
return NULL;
}
sub->server = srv;
sub->net = net;
sub->conid = conid;
sub->inactive = false;
memcpy(&sub->evt.s, s, sizeof(*s));
spin_lock_init(&sub->lock);
atomic_inc(&tn->subscription_count);
kref_init(&sub->kref);
tipc_nametbl_subscribe(sub);
timer_setup(&sub->timer, tipc_sub_timeout, 0);
@@ -180,46 +167,3 @@ void tipc_sub_unsubscribe(struct tipc_subscription *sub)
list_del(&sub->sub_list);
tipc_sub_put(sub);
}
int tipc_topsrv_start(struct net *net)
{
struct tipc_net *tn = net_generic(net, tipc_net_id);
const char name[] = "topology_server";
struct sockaddr_tipc *saddr;
struct tipc_server *topsrv;
saddr = kzalloc(sizeof(*saddr), GFP_ATOMIC);
if (!saddr)
return -ENOMEM;
saddr->family = AF_TIPC;
saddr->addrtype = TIPC_ADDR_NAMESEQ;
saddr->addr.nameseq.type = TIPC_TOP_SRV;
saddr->addr.nameseq.lower = TIPC_TOP_SRV;
saddr->addr.nameseq.upper = TIPC_TOP_SRV;
saddr->scope = TIPC_NODE_SCOPE;
topsrv = kzalloc(sizeof(*topsrv), GFP_ATOMIC);
if (!topsrv) {
kfree(saddr);
return -ENOMEM;
}
topsrv->net = net;
topsrv->saddr = saddr;
topsrv->max_rcvbuf_size = sizeof(struct tipc_subscr);
strncpy(topsrv->name, name, strlen(name) + 1);
tn->topsrv = topsrv;
atomic_set(&tn->subscription_count, 0);
return tipc_server_start(topsrv);
}
void tipc_topsrv_stop(struct net *net)
{
struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_server *topsrv = tn->topsrv;
tipc_server_stop(topsrv);
kfree(topsrv->saddr);
kfree(topsrv);
}