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tipc: eliminate redundant lookups in registry

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As an artefact from the native interface, the message sending functions
in the port takes a port ref as first parameter, and then looks up in
the registry to find the corresponding port pointer. This despite the
fact that the only currently existing caller, tipc_sock, already knows
this pointer.

We change the signature of these functions to take a struct tipc_port*
argument, and remove the redundant lookups.

We also remove an unmotivated extra lookup in the function
socket.c:auto_connect(), and, as the lookup functions tipc_port_deref()
and ref_deref() now become unused, we remove these two functions.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jon Paul Maloy
2014-03-12 11:31:13 -04:00
committed by David S. Miller
parent 58ed944241
commit 5c311421a2
5 changed files with 47 additions and 61 deletions
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14
net/tipc/socket.c
View File

@@ -600,10 +600,10 @@ static int tipc_sendmsg(struct kiocb *iocb, struct socket *sock,
{
struct sock *sk = sock->sk;
struct tipc_sock *tsk = tipc_sk(sk);
struct tipc_port *port = &tsk->port;
DECLARE_SOCKADDR(struct sockaddr_tipc *, dest, m->msg_name);
int needs_conn;
long timeo;
u32 ref = tsk->port.ref;
int res = -EINVAL;
if (unlikely(!dest))
@@ -646,13 +646,13 @@ static int tipc_sendmsg(struct kiocb *iocb, struct socket *sock,
res = dest_name_check(dest, m);
if (res)
break;
res = tipc_send2name(ref,
res = tipc_send2name(port,
&dest->addr.name.name,
dest->addr.name.domain,
m->msg_iov,
total_len);
} else if (dest->addrtype == TIPC_ADDR_ID) {
res = tipc_send2port(ref,
res = tipc_send2port(port,
&dest->addr.id,
m->msg_iov,
total_len);
@@ -664,7 +664,7 @@ static int tipc_sendmsg(struct kiocb *iocb, struct socket *sock,
res = dest_name_check(dest, m);
if (res)
break;
res = tipc_port_mcast_xmit(ref,
res = tipc_port_mcast_xmit(port,
&dest->addr.nameseq,
m->msg_iov,
total_len);
@@ -754,7 +754,7 @@ static int tipc_send_packet(struct kiocb *iocb, struct socket *sock,
timeo = sock_sndtimeo(sk, m->msg_flags & MSG_DONTWAIT);
do {
res = tipc_send(tsk->port.ref, m->msg_iov, total_len);
res = tipc_send(&tsk->port, m->msg_iov, total_len);
if (likely(res != -ELINKCONG))
break;
res = tipc_wait_for_sndpkt(sock, &timeo);
@@ -881,10 +881,6 @@ static int auto_connect(struct tipc_sock *tsk, struct tipc_msg *msg)
peer.ref = msg_origport(msg);
peer.node = msg_orignode(msg);
port = tipc_port_deref(port->ref);
if (!port)
return -EINVAL;
__tipc_port_connect(port->ref, port, &peer);
if (msg_importance(msg) > TIPC_CRITICAL_IMPORTANCE)