From 247f0f3c3176c55b46cb9a20011d3d6757634815 Mon Sep 17 00:00:00 2001 From: Ying Xue Date: Tue, 18 Feb 2014 16:06:46 +0800 Subject: tipc: align tipc function names with common naming practice in the network Rename the following functions, which are shorter and more in line with common naming practice in the network subsystem. tipc_bclink_send_msg->tipc_bclink_xmit tipc_bclink_recv_pkt->tipc_bclink_rcv tipc_disc_recv_msg->tipc_disc_rcv tipc_link_send_proto_msg->tipc_link_proto_xmit link_recv_proto_msg->tipc_link_proto_rcv link_send_sections_long->tipc_link_iovec_long_xmit tipc_link_send_sections_fast->tipc_link_iovec_xmit_fast tipc_link_send_sync->tipc_link_sync_xmit tipc_link_recv_sync->tipc_link_sync_rcv tipc_link_send_buf->__tipc_link_xmit tipc_link_send->tipc_link_xmit tipc_link_send_names->tipc_link_names_xmit tipc_named_recv->tipc_named_rcv tipc_link_recv_bundle->tipc_link_bundle_rcv tipc_link_dup_send_queue->tipc_link_dup_queue_xmit link_send_long_buf->tipc_link_frag_xmit tipc_multicast->tipc_port_mcast_xmit tipc_port_recv_mcast->tipc_port_mcast_rcv tipc_port_reject_sections->tipc_port_iovec_reject tipc_port_recv_proto_msg->tipc_port_proto_rcv tipc_connect->tipc_port_connect __tipc_connect->__tipc_port_connect __tipc_disconnect->__tipc_port_disconnect tipc_disconnect->tipc_port_disconnect tipc_shutdown->tipc_port_shutdown tipc_port_recv_msg->tipc_port_rcv tipc_port_recv_sections->tipc_port_iovec_rcv release->tipc_release accept->tipc_accept bind->tipc_bind get_name->tipc_getname poll->tipc_poll send_msg->tipc_sendmsg send_packet->tipc_send_packet send_stream->tipc_send_stream recv_msg->tipc_recvmsg recv_stream->tipc_recv_stream connect->tipc_connect listen->tipc_listen shutdown->tipc_shutdown setsockopt->tipc_setsockopt getsockopt->tipc_getsockopt Above changes have no impact on current users of the functions. Signed-off-by: Ying Xue Reviewed-by: Jon Maloy Signed-off-by: David S. Miller --- net/tipc/socket.c | 188 +++++++++++++++++++++++++++--------------------------- 1 file changed, 95 insertions(+), 93 deletions(-) (limited to 'net/tipc/socket.c') diff --git a/net/tipc/socket.c b/net/tipc/socket.c index aab4948f0af..fb885977bd2 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -60,8 +60,8 @@ static u32 dispatch(struct tipc_port *tport, struct sk_buff *buf); static void wakeupdispatch(struct tipc_port *tport); static void tipc_data_ready(struct sock *sk, int len); static void tipc_write_space(struct sock *sk); -static int release(struct socket *sock); -static int accept(struct socket *sock, struct socket *new_sock, int flags); +static int tipc_release(struct socket *sock); +static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags); static const struct proto_ops packet_ops; static const struct proto_ops stream_ops; @@ -256,7 +256,7 @@ int tipc_sock_create_local(int type, struct socket **res) */ void tipc_sock_release_local(struct socket *sock) { - release(sock); + tipc_release(sock); sock->ops = NULL; sock_release(sock); } @@ -282,7 +282,7 @@ int tipc_sock_accept_local(struct socket *sock, struct socket **newsock, if (ret < 0) return ret; - ret = accept(sock, *newsock, flags); + ret = tipc_accept(sock, *newsock, flags); if (ret < 0) { sock_release(*newsock); return ret; @@ -292,7 +292,7 @@ int tipc_sock_accept_local(struct socket *sock, struct socket **newsock, } /** - * release - destroy a TIPC socket + * tipc_release - destroy a TIPC socket * @sock: socket to destroy * * This routine cleans up any messages that are still queued on the socket. @@ -307,7 +307,7 @@ int tipc_sock_accept_local(struct socket *sock, struct socket **newsock, * * Returns 0 on success, errno otherwise */ -static int release(struct socket *sock) +static int tipc_release(struct socket *sock) { struct sock *sk = sock->sk; struct tipc_port *tport; @@ -338,7 +338,7 @@ static int release(struct socket *sock) if ((sock->state == SS_CONNECTING) || (sock->state == SS_CONNECTED)) { sock->state = SS_DISCONNECTING; - tipc_disconnect(tport->ref); + tipc_port_disconnect(tport->ref); } tipc_reject_msg(buf, TIPC_ERR_NO_PORT); } @@ -364,7 +364,7 @@ static int release(struct socket *sock) } /** - * bind - associate or disassocate TIPC name(s) with a socket + * tipc_bind - associate or disassocate TIPC name(s) with a socket * @sock: socket structure * @uaddr: socket address describing name(s) and desired operation * @uaddr_len: size of socket address data structure @@ -378,7 +378,8 @@ static int release(struct socket *sock) * NOTE: This routine doesn't need to take the socket lock since it doesn't * access any non-constant socket information. */ -static int bind(struct socket *sock, struct sockaddr *uaddr, int uaddr_len) +static int tipc_bind(struct socket *sock, struct sockaddr *uaddr, + int uaddr_len) { struct sock *sk = sock->sk; struct sockaddr_tipc *addr = (struct sockaddr_tipc *)uaddr; @@ -423,7 +424,7 @@ exit: } /** - * get_name - get port ID of socket or peer socket + * tipc_getname - get port ID of socket or peer socket * @sock: socket structure * @uaddr: area for returned socket address * @uaddr_len: area for returned length of socket address @@ -435,8 +436,8 @@ exit: * accesses socket information that is unchanging (or which changes in * a completely predictable manner). */ -static int get_name(struct socket *sock, struct sockaddr *uaddr, - int *uaddr_len, int peer) +static int tipc_getname(struct socket *sock, struct sockaddr *uaddr, + int *uaddr_len, int peer) { struct sockaddr_tipc *addr = (struct sockaddr_tipc *)uaddr; struct tipc_sock *tsock = tipc_sk(sock->sk); @@ -463,7 +464,7 @@ static int get_name(struct socket *sock, struct sockaddr *uaddr, } /** - * poll - read and possibly block on pollmask + * tipc_poll - read and possibly block on pollmask * @file: file structure associated with the socket * @sock: socket for which to calculate the poll bits * @wait: ??? @@ -502,8 +503,8 @@ static int get_name(struct socket *sock, struct sockaddr *uaddr, * imply that the operation will succeed, merely that it should be performed * and will not block. */ -static unsigned int poll(struct file *file, struct socket *sock, - poll_table *wait) +static unsigned int tipc_poll(struct file *file, struct socket *sock, + poll_table *wait) { struct sock *sk = sock->sk; u32 mask = 0; @@ -590,7 +591,7 @@ static int tipc_wait_for_sndmsg(struct socket *sock, long *timeo_p) } /** - * send_msg - send message in connectionless manner + * tipc_sendmsg - send message in connectionless manner * @iocb: if NULL, indicates that socket lock is already held * @sock: socket structure * @m: message to send @@ -603,8 +604,8 @@ static int tipc_wait_for_sndmsg(struct socket *sock, long *timeo_p) * * Returns the number of bytes sent on success, or errno otherwise */ -static int send_msg(struct kiocb *iocb, struct socket *sock, - struct msghdr *m, size_t total_len) +static int tipc_sendmsg(struct kiocb *iocb, struct socket *sock, + struct msghdr *m, size_t total_len) { struct sock *sk = sock->sk; struct tipc_port *tport = tipc_sk_port(sk); @@ -671,10 +672,10 @@ static int send_msg(struct kiocb *iocb, struct socket *sock, res = dest_name_check(dest, m); if (res) break; - res = tipc_multicast(tport->ref, - &dest->addr.nameseq, - m->msg_iov, - total_len); + res = tipc_port_mcast_xmit(tport->ref, + &dest->addr.nameseq, + m->msg_iov, + total_len); } if (likely(res != -ELINKCONG)) { if (needs_conn && (res >= 0)) @@ -721,7 +722,7 @@ static int tipc_wait_for_sndpkt(struct socket *sock, long *timeo_p) } /** - * send_packet - send a connection-oriented message + * tipc_send_packet - send a connection-oriented message * @iocb: if NULL, indicates that socket lock is already held * @sock: socket structure * @m: message to send @@ -731,8 +732,8 @@ static int tipc_wait_for_sndpkt(struct socket *sock, long *timeo_p) * * Returns the number of bytes sent on success, or errno otherwise */ -static int send_packet(struct kiocb *iocb, struct socket *sock, - struct msghdr *m, size_t total_len) +static int tipc_send_packet(struct kiocb *iocb, struct socket *sock, + struct msghdr *m, size_t total_len) { struct sock *sk = sock->sk; struct tipc_port *tport = tipc_sk_port(sk); @@ -742,7 +743,7 @@ static int send_packet(struct kiocb *iocb, struct socket *sock, /* Handle implied connection establishment */ if (unlikely(dest)) - return send_msg(iocb, sock, m, total_len); + return tipc_sendmsg(iocb, sock, m, total_len); if (total_len > TIPC_MAX_USER_MSG_SIZE) return -EMSGSIZE; @@ -774,7 +775,7 @@ exit: } /** - * send_stream - send stream-oriented data + * tipc_send_stream - send stream-oriented data * @iocb: (unused) * @sock: socket structure * @m: data to send @@ -785,8 +786,8 @@ exit: * Returns the number of bytes sent on success (or partial success), * or errno if no data sent */ -static int send_stream(struct kiocb *iocb, struct socket *sock, - struct msghdr *m, size_t total_len) +static int tipc_send_stream(struct kiocb *iocb, struct socket *sock, + struct msghdr *m, size_t total_len) { struct sock *sk = sock->sk; struct tipc_port *tport = tipc_sk_port(sk); @@ -806,7 +807,7 @@ static int send_stream(struct kiocb *iocb, struct socket *sock, /* Handle special cases where there is no connection */ if (unlikely(sock->state != SS_CONNECTED)) { if (sock->state == SS_UNCONNECTED) - res = send_packet(NULL, sock, m, total_len); + res = tipc_send_packet(NULL, sock, m, total_len); else res = sock->state == SS_DISCONNECTING ? -EPIPE : -ENOTCONN; goto exit; @@ -851,7 +852,8 @@ static int send_stream(struct kiocb *iocb, struct socket *sock, bytes_to_send = curr_left; my_iov.iov_base = curr_start; my_iov.iov_len = bytes_to_send; - res = send_packet(NULL, sock, &my_msg, bytes_to_send); + res = tipc_send_packet(NULL, sock, &my_msg, + bytes_to_send); if (res < 0) { if (bytes_sent) res = bytes_sent; @@ -888,7 +890,7 @@ static int auto_connect(struct socket *sock, struct tipc_msg *msg) if (!p_ptr) return -EINVAL; - __tipc_connect(tsock->p->ref, p_ptr, &tsock->peer_name); + __tipc_port_connect(tsock->p->ref, p_ptr, &tsock->peer_name); if (msg_importance(msg) > TIPC_CRITICAL_IMPORTANCE) return -EINVAL; @@ -1023,7 +1025,7 @@ static int tipc_wait_for_rcvmsg(struct socket *sock, long timeo) } /** - * recv_msg - receive packet-oriented message + * tipc_recvmsg - receive packet-oriented message * @iocb: (unused) * @m: descriptor for message info * @buf_len: total size of user buffer area @@ -1034,8 +1036,8 @@ static int tipc_wait_for_rcvmsg(struct socket *sock, long timeo) * * Returns size of returned message data, errno otherwise */ -static int recv_msg(struct kiocb *iocb, struct socket *sock, - struct msghdr *m, size_t buf_len, int flags) +static int tipc_recvmsg(struct kiocb *iocb, struct socket *sock, + struct msghdr *m, size_t buf_len, int flags) { struct sock *sk = sock->sk; struct tipc_port *tport = tipc_sk_port(sk); @@ -1117,7 +1119,7 @@ exit: } /** - * recv_stream - receive stream-oriented data + * tipc_recv_stream - receive stream-oriented data * @iocb: (unused) * @m: descriptor for message info * @buf_len: total size of user buffer area @@ -1128,8 +1130,8 @@ exit: * * Returns size of returned message data, errno otherwise */ -static int recv_stream(struct kiocb *iocb, struct socket *sock, - struct msghdr *m, size_t buf_len, int flags) +static int tipc_recv_stream(struct kiocb *iocb, struct socket *sock, + struct msghdr *m, size_t buf_len, int flags) { struct sock *sk = sock->sk; struct tipc_port *tport = tipc_sk_port(sk); @@ -1291,7 +1293,7 @@ static u32 filter_connect(struct tipc_sock *tsock, struct sk_buff **buf) if (msg_connected(msg) && tipc_port_peer_msg(tsock->p, msg)) { if (unlikely(msg_errcode(msg))) { sock->state = SS_DISCONNECTING; - __tipc_disconnect(tsock->p); + __tipc_port_disconnect(tsock->p); } retval = TIPC_OK; } @@ -1506,7 +1508,7 @@ static int tipc_wait_for_connect(struct socket *sock, long *timeo_p) } /** - * connect - establish a connection to another TIPC port + * tipc_connect - establish a connection to another TIPC port * @sock: socket structure * @dest: socket address for destination port * @destlen: size of socket address data structure @@ -1514,8 +1516,8 @@ static int tipc_wait_for_connect(struct socket *sock, long *timeo_p) * * Returns 0 on success, errno otherwise */ -static int connect(struct socket *sock, struct sockaddr *dest, int destlen, - int flags) +static int tipc_connect(struct socket *sock, struct sockaddr *dest, + int destlen, int flags) { struct sock *sk = sock->sk; struct sockaddr_tipc *dst = (struct sockaddr_tipc *)dest; @@ -1556,7 +1558,7 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen, if (!timeout) m.msg_flags = MSG_DONTWAIT; - res = send_msg(NULL, sock, &m, 0); + res = tipc_sendmsg(NULL, sock, &m, 0); if ((res < 0) && (res != -EWOULDBLOCK)) goto exit; @@ -1587,13 +1589,13 @@ exit: } /** - * listen - allow socket to listen for incoming connections + * tipc_listen - allow socket to listen for incoming connections * @sock: socket structure * @len: (unused) * * Returns 0 on success, errno otherwise */ -static int listen(struct socket *sock, int len) +static int tipc_listen(struct socket *sock, int len) { struct sock *sk = sock->sk; int res; @@ -1648,14 +1650,14 @@ static int tipc_wait_for_accept(struct socket *sock, long timeo) } /** - * accept - wait for connection request + * tipc_accept - wait for connection request * @sock: listening socket * @newsock: new socket that is to be connected * @flags: file-related flags associated with socket * * Returns 0 on success, errno otherwise */ -static int accept(struct socket *sock, struct socket *new_sock, int flags) +static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags) { struct sock *new_sk, *sk = sock->sk; struct sk_buff *buf; @@ -1702,7 +1704,7 @@ static int accept(struct socket *sock, struct socket *new_sock, int flags) /* Connect new socket to it's peer */ new_tsock->peer_name.ref = msg_origport(msg); new_tsock->peer_name.node = msg_orignode(msg); - tipc_connect(new_ref, &new_tsock->peer_name); + tipc_port_connect(new_ref, &new_tsock->peer_name); new_sock->state = SS_CONNECTED; tipc_set_portimportance(new_ref, msg_importance(msg)); @@ -1719,7 +1721,7 @@ static int accept(struct socket *sock, struct socket *new_sock, int flags) struct msghdr m = {NULL,}; advance_rx_queue(sk); - send_packet(NULL, new_sock, &m, 0); + tipc_send_packet(NULL, new_sock, &m, 0); } else { __skb_dequeue(&sk->sk_receive_queue); __skb_queue_head(&new_sk->sk_receive_queue, buf); @@ -1733,7 +1735,7 @@ exit: } /** - * shutdown - shutdown socket connection + * tipc_shutdown - shutdown socket connection * @sock: socket structure * @how: direction to close (must be SHUT_RDWR) * @@ -1741,7 +1743,7 @@ exit: * * Returns 0 on success, errno otherwise */ -static int shutdown(struct socket *sock, int how) +static int tipc_shutdown(struct socket *sock, int how) { struct sock *sk = sock->sk; struct tipc_port *tport = tipc_sk_port(sk); @@ -1765,10 +1767,10 @@ restart: kfree_skb(buf); goto restart; } - tipc_disconnect(tport->ref); + tipc_port_disconnect(tport->ref); tipc_reject_msg(buf, TIPC_CONN_SHUTDOWN); } else { - tipc_shutdown(tport->ref); + tipc_port_shutdown(tport->ref); } sock->state = SS_DISCONNECTING; @@ -1794,7 +1796,7 @@ restart: } /** - * setsockopt - set socket option + * tipc_setsockopt - set socket option * @sock: socket structure * @lvl: option level * @opt: option identifier @@ -1806,8 +1808,8 @@ restart: * * Returns 0 on success, errno otherwise */ -static int setsockopt(struct socket *sock, int lvl, int opt, char __user *ov, - unsigned int ol) +static int tipc_setsockopt(struct socket *sock, int lvl, int opt, + char __user *ov, unsigned int ol) { struct sock *sk = sock->sk; struct tipc_port *tport = tipc_sk_port(sk); @@ -1853,7 +1855,7 @@ static int setsockopt(struct socket *sock, int lvl, int opt, char __user *ov, } /** - * getsockopt - get socket option + * tipc_getsockopt - get socket option * @sock: socket structure * @lvl: option level * @opt: option identifier @@ -1865,8 +1867,8 @@ static int setsockopt(struct socket *sock, int lvl, int opt, char __user *ov, * * Returns 0 on success, errno otherwise */ -static int getsockopt(struct socket *sock, int lvl, int opt, char __user *ov, - int __user *ol) +static int tipc_getsockopt(struct socket *sock, int lvl, int opt, + char __user *ov, int __user *ol) { struct sock *sk = sock->sk; struct tipc_port *tport = tipc_sk_port(sk); @@ -1927,20 +1929,20 @@ static int getsockopt(struct socket *sock, int lvl, int opt, char __user *ov, static const struct proto_ops msg_ops = { .owner = THIS_MODULE, .family = AF_TIPC, - .release = release, - .bind = bind, - .connect = connect, + .release = tipc_release, + .bind = tipc_bind, + .connect = tipc_connect, .socketpair = sock_no_socketpair, .accept = sock_no_accept, - .getname = get_name, - .poll = poll, + .getname = tipc_getname, + .poll = tipc_poll, .ioctl = sock_no_ioctl, .listen = sock_no_listen, - .shutdown = shutdown, - .setsockopt = setsockopt, - .getsockopt = getsockopt, - .sendmsg = send_msg, - .recvmsg = recv_msg, + .shutdown = tipc_shutdown, + .setsockopt = tipc_setsockopt, + .getsockopt = tipc_getsockopt, + .sendmsg = tipc_sendmsg, + .recvmsg = tipc_recvmsg, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage }; @@ -1948,20 +1950,20 @@ static const struct proto_ops msg_ops = { static const struct proto_ops packet_ops = { .owner = THIS_MODULE, .family = AF_TIPC, - .release = release, - .bind = bind, - .connect = connect, + .release = tipc_release, + .bind = tipc_bind, + .connect = tipc_connect, .socketpair = sock_no_socketpair, - .accept = accept, - .getname = get_name, - .poll = poll, + .accept = tipc_accept, + .getname = tipc_getname, + .poll = tipc_poll, .ioctl = sock_no_ioctl, - .listen = listen, - .shutdown = shutdown, - .setsockopt = setsockopt, - .getsockopt = getsockopt, - .sendmsg = send_packet, - .recvmsg = recv_msg, + .listen = tipc_listen, + .shutdown = tipc_shutdown, + .setsockopt = tipc_setsockopt, + .getsockopt = tipc_getsockopt, + .sendmsg = tipc_send_packet, + .recvmsg = tipc_recvmsg, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage }; @@ -1969,20 +1971,20 @@ static const struct proto_ops packet_ops = { static const struct proto_ops stream_ops = { .owner = THIS_MODULE, .family = AF_TIPC, - .release = release, - .bind = bind, - .connect = connect, + .release = tipc_release, + .bind = tipc_bind, + .connect = tipc_connect, .socketpair = sock_no_socketpair, - .accept = accept, - .getname = get_name, - .poll = poll, + .accept = tipc_accept, + .getname = tipc_getname, + .poll = tipc_poll, .ioctl = sock_no_ioctl, - .listen = listen, - .shutdown = shutdown, - .setsockopt = setsockopt, - .getsockopt = getsockopt, - .sendmsg = send_stream, - .recvmsg = recv_stream, + .listen = tipc_listen, + .shutdown = tipc_shutdown, + .setsockopt = tipc_setsockopt, + .getsockopt = tipc_getsockopt, + .sendmsg = tipc_send_stream, + .recvmsg = tipc_recv_stream, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage }; -- cgit v1.2.3-70-g09d2 From f9fef18c6d688697e72d1020a7c43a50c1331a58 Mon Sep 17 00:00:00 2001 From: Jon Paul Maloy Date: Wed, 12 Mar 2014 11:31:08 -0400 Subject: tipc: remove redundant 'peer_name' field in struct tipc_sock The field 'peer_name' in struct tipc_sock is redundant, since this information already is available from tipc_port, to which tipc_sock has a reference. We remove the field, and ensure that peer node and peer port info instead is fetched via the functions that already exist for this purpose. Signed-off-by: Jon Maloy Reviewed-by: Ying Xue Reviewed-by: Erik Hugne Signed-off-by: David S. Miller --- net/tipc/port.c | 25 +++++++------------------ net/tipc/port.h | 11 +++++++++++ net/tipc/socket.c | 21 ++++++++++++--------- 3 files changed, 30 insertions(+), 27 deletions(-) (limited to 'net/tipc/socket.c') diff --git a/net/tipc/port.c b/net/tipc/port.c index c7c2b549a39..d1abe110412 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -54,17 +54,6 @@ static struct sk_buff *port_build_self_abort_msg(struct tipc_port *, u32 err); static struct sk_buff *port_build_peer_abort_msg(struct tipc_port *, u32 err); static void port_timeout(unsigned long ref); - -static u32 port_peernode(struct tipc_port *p_ptr) -{ - return msg_destnode(&p_ptr->phdr); -} - -static u32 port_peerport(struct tipc_port *p_ptr) -{ - return msg_destport(&p_ptr->phdr); -} - /** * tipc_port_peer_msg - verify message was sent by connected port's peer * @@ -76,11 +65,11 @@ int tipc_port_peer_msg(struct tipc_port *p_ptr, struct tipc_msg *msg) u32 peernode; u32 orignode; - if (msg_origport(msg) != port_peerport(p_ptr)) + if (msg_origport(msg) != tipc_port_peerport(p_ptr)) return 0; orignode = msg_orignode(msg); - peernode = port_peernode(p_ptr); + peernode = tipc_port_peernode(p_ptr); return (orignode == peernode) || (!orignode && (peernode == tipc_own_addr)) || (!peernode && (orignode == tipc_own_addr)); @@ -351,8 +340,8 @@ static struct sk_buff *port_build_proto_msg(struct tipc_port *p_ptr, if (buf) { msg = buf_msg(buf); tipc_msg_init(msg, CONN_MANAGER, type, INT_H_SIZE, - port_peernode(p_ptr)); - msg_set_destport(msg, port_peerport(p_ptr)); + tipc_port_peernode(p_ptr)); + msg_set_destport(msg, tipc_port_peerport(p_ptr)); msg_set_origport(msg, p_ptr->ref); msg_set_msgcnt(msg, ack); } @@ -585,8 +574,8 @@ static int port_print(struct tipc_port *p_ptr, char *buf, int len, int full_id) ret = tipc_snprintf(buf, len, "%-10u:", p_ptr->ref); if (p_ptr->connected) { - u32 dport = port_peerport(p_ptr); - u32 destnode = port_peernode(p_ptr); + u32 dport = tipc_port_peerport(p_ptr); + u32 destnode = tipc_port_peernode(p_ptr); ret += tipc_snprintf(buf + ret, len - ret, " connected to <%u.%u.%u:%u>", @@ -926,7 +915,7 @@ int tipc_send(u32 ref, struct iovec const *msg_sect, unsigned int len) p_ptr->congested = 1; if (!tipc_port_congested(p_ptr)) { - destnode = port_peernode(p_ptr); + destnode = tipc_port_peernode(p_ptr); if (likely(!in_own_node(destnode))) res = tipc_link_iovec_xmit_fast(p_ptr, msg_sect, len, destnode); diff --git a/net/tipc/port.h b/net/tipc/port.h index 3ec3e94e433..4a2a1ac8686 100644 --- a/net/tipc/port.h +++ b/net/tipc/port.h @@ -198,4 +198,15 @@ static inline int tipc_port_congested(struct tipc_port *p_ptr) return (p_ptr->sent - p_ptr->acked) >= (TIPC_FLOW_CONTROL_WIN * 2); } + +static inline u32 tipc_port_peernode(struct tipc_port *p_ptr) +{ + return msg_destnode(&p_ptr->phdr); +} + +static inline u32 tipc_port_peerport(struct tipc_port *p_ptr) +{ + return msg_destport(&p_ptr->phdr); +} + #endif diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 336e18d6cf4..62655772add 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -48,7 +48,6 @@ struct tipc_sock { struct sock sk; struct tipc_port *p; - struct tipc_portid peer_name; unsigned int conn_timeout; }; @@ -445,8 +444,9 @@ static int tipc_getname(struct socket *sock, struct sockaddr *uaddr, if ((sock->state != SS_CONNECTED) && ((peer != 2) || (sock->state != SS_DISCONNECTING))) return -ENOTCONN; - addr->addr.id.ref = tsock->peer_name.ref; - addr->addr.id.node = tsock->peer_name.node; + + addr->addr.id.ref = tipc_port_peerport(tsock->p); + addr->addr.id.node = tipc_port_peernode(tsock->p); } else { addr->addr.id.ref = tsock->p->ref; addr->addr.id.node = tipc_own_addr; @@ -881,14 +881,16 @@ static int auto_connect(struct socket *sock, struct tipc_msg *msg) { struct tipc_sock *tsock = tipc_sk(sock->sk); struct tipc_port *p_ptr; + struct tipc_portid peer; + + peer.ref = msg_origport(msg); + peer.node = msg_orignode(msg); - tsock->peer_name.ref = msg_origport(msg); - tsock->peer_name.node = msg_orignode(msg); p_ptr = tipc_port_deref(tsock->p->ref); if (!p_ptr) return -EINVAL; - __tipc_port_connect(tsock->p->ref, p_ptr, &tsock->peer_name); + __tipc_port_connect(p_ptr->ref, p_ptr, &peer); if (msg_importance(msg) > TIPC_CRITICAL_IMPORTANCE) return -EINVAL; @@ -1662,6 +1664,7 @@ static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags) struct tipc_sock *new_tsock; struct tipc_port *new_tport; struct tipc_msg *msg; + struct tipc_portid peer; u32 new_ref; long timeo; int res; @@ -1700,9 +1703,9 @@ static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags) reject_rx_queue(new_sk); /* Connect new socket to it's peer */ - new_tsock->peer_name.ref = msg_origport(msg); - new_tsock->peer_name.node = msg_orignode(msg); - tipc_port_connect(new_ref, &new_tsock->peer_name); + peer.ref = msg_origport(msg); + peer.node = msg_orignode(msg); + tipc_port_connect(new_ref, &peer); new_sock->state = SS_CONNECTED; tipc_set_portimportance(new_ref, msg_importance(msg)); -- cgit v1.2.3-70-g09d2 From 8826cde655fb5ca3b35a112c851c90b3dccbb7b8 Mon Sep 17 00:00:00 2001 From: Jon Paul Maloy Date: Wed, 12 Mar 2014 11:31:09 -0400 Subject: tipc: aggregate port structure into socket structure After the removal of the tipc native API the relation between a tipc_port and its API types is strictly one-to-one, i.e, the latter can now only be a socket API. There is therefore no need to allocate struct tipc_port and struct sock independently. In this commit, we aggregate struct tipc_port into struct tipc_sock, hence saving both CPU cycles and structure complexity. There are no functional changes in this commit, except for the elimination of the separate allocation/freeing of tipc_port. All other changes are just adaptatons to the new data structure. This commit also opens up for further code simplifications and code volume reduction, something we will do in later commits. Signed-off-by: Jon Maloy Reviewed-by: Ying Xue Reviewed-by: Erik Hugne Signed-off-by: David S. Miller --- net/tipc/port.c | 15 ++++-------- net/tipc/port.h | 4 +--- net/tipc/socket.c | 66 +++++++++++++++++++++------------------------------ net/tipc/socket.h | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 101 insertions(+), 54 deletions(-) create mode 100644 net/tipc/socket.h (limited to 'net/tipc/socket.c') diff --git a/net/tipc/port.c b/net/tipc/port.c index d1abe110412..7b027e99a5c 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -1,7 +1,7 @@ /* * net/tipc/port.c: TIPC port code * - * Copyright (c) 1992-2007, Ericsson AB + * Copyright (c) 1992-2007, 2014, Ericsson AB * Copyright (c) 2004-2008, 2010-2013, Wind River Systems * All rights reserved. * @@ -38,6 +38,7 @@ #include "config.h" #include "port.h" #include "name_table.h" +#include "socket.h" /* Connection management: */ #define PROBING_INTERVAL 3600000 /* [ms] => 1 h */ @@ -200,23 +201,16 @@ struct tipc_port *tipc_createport(struct sock *sk, void (*wakeup)(struct tipc_port *), const u32 importance) { - struct tipc_port *p_ptr; + struct tipc_port *p_ptr = tipc_sk_port(sk); struct tipc_msg *msg; u32 ref; - p_ptr = kzalloc(sizeof(*p_ptr), GFP_ATOMIC); - if (!p_ptr) { - pr_warn("Port creation failed, no memory\n"); - return NULL; - } ref = tipc_ref_acquire(p_ptr, &p_ptr->lock); if (!ref) { - pr_warn("Port creation failed, ref. table exhausted\n"); - kfree(p_ptr); + pr_warn("Port registration failed, ref. table exhausted\n"); return NULL; } - p_ptr->sk = sk; p_ptr->max_pkt = MAX_PKT_DEFAULT; p_ptr->ref = ref; INIT_LIST_HEAD(&p_ptr->wait_list); @@ -262,7 +256,6 @@ int tipc_deleteport(struct tipc_port *p_ptr) list_del(&p_ptr->wait_list); spin_unlock_bh(&tipc_port_list_lock); k_term_timer(&p_ptr->timer); - kfree(p_ptr); tipc_net_route_msg(buf); return 0; } diff --git a/net/tipc/port.h b/net/tipc/port.h index 4a2a1ac8686..1b200624bfb 100644 --- a/net/tipc/port.h +++ b/net/tipc/port.h @@ -1,7 +1,7 @@ /* * net/tipc/port.h: Include file for TIPC port code * - * Copyright (c) 1994-2007, Ericsson AB + * Copyright (c) 1994-2007, 2014, Ericsson AB * Copyright (c) 2004-2007, 2010-2013, Wind River Systems * All rights reserved. * @@ -48,7 +48,6 @@ /** * struct tipc_port - TIPC port structure - * @sk: pointer to socket handle * @lock: pointer to spinlock for controlling access to port * @connected: non-zero if port is currently connected to a peer port * @conn_type: TIPC type used when connection was established @@ -74,7 +73,6 @@ * @subscription: "node down" subscription used to terminate failed connections */ struct tipc_port { - struct sock *sk; spinlock_t *lock; int connected; u32 conn_type; diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 62655772add..912665d409d 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -1,7 +1,7 @@ /* * net/tipc/socket.c: TIPC socket API * - * Copyright (c) 2001-2007, 2012 Ericsson AB + * Copyright (c) 2001-2007, 2012-2014, Ericsson AB * Copyright (c) 2004-2008, 2010-2013, Wind River Systems * All rights reserved. * @@ -38,21 +38,12 @@ #include "port.h" #include -#include #define SS_LISTENING -1 /* socket is listening */ #define SS_READY -2 /* socket is connectionless */ #define CONN_TIMEOUT_DEFAULT 8000 /* default connect timeout = 8s */ -struct tipc_sock { - struct sock sk; - struct tipc_port *p; - unsigned int conn_timeout; -}; - -#define tipc_sk(sk) ((struct tipc_sock *)(sk)) -#define tipc_sk_port(sk) (tipc_sk(sk)->p) static int backlog_rcv(struct sock *sk, struct sk_buff *skb); static u32 dispatch(struct tipc_port *tport, struct sk_buff *buf); @@ -114,6 +105,8 @@ static struct proto tipc_proto_kern; * - port reference */ +#include "socket.h" + /** * advance_rx_queue - discard first buffer in socket receive queue * @@ -205,7 +198,6 @@ static int tipc_sk_create(struct net *net, struct socket *sock, int protocol, sk->sk_rcvbuf = sysctl_tipc_rmem[1]; sk->sk_data_ready = tipc_data_ready; sk->sk_write_space = tipc_write_space; - tipc_sk(sk)->p = tp_ptr; tipc_sk(sk)->conn_timeout = CONN_TIMEOUT_DEFAULT; spin_unlock_bh(tp_ptr->lock); @@ -437,18 +429,17 @@ static int tipc_getname(struct socket *sock, struct sockaddr *uaddr, int *uaddr_len, int peer) { struct sockaddr_tipc *addr = (struct sockaddr_tipc *)uaddr; - struct tipc_sock *tsock = tipc_sk(sock->sk); + struct tipc_port *port = tipc_sk_port(sock->sk); memset(addr, 0, sizeof(*addr)); if (peer) { if ((sock->state != SS_CONNECTED) && ((peer != 2) || (sock->state != SS_DISCONNECTING))) return -ENOTCONN; - - addr->addr.id.ref = tipc_port_peerport(tsock->p); - addr->addr.id.node = tipc_port_peernode(tsock->p); + addr->addr.id.ref = tipc_port_peerport(port); + addr->addr.id.node = tipc_port_peernode(port); } else { - addr->addr.id.ref = tsock->p->ref; + addr->addr.id.ref = port->ref; addr->addr.id.node = tipc_own_addr; } @@ -879,14 +870,13 @@ exit: */ static int auto_connect(struct socket *sock, struct tipc_msg *msg) { - struct tipc_sock *tsock = tipc_sk(sock->sk); - struct tipc_port *p_ptr; + struct tipc_port *p_ptr = tipc_sk_port(sock->sk); struct tipc_portid peer; peer.ref = msg_origport(msg); peer.node = msg_orignode(msg); - p_ptr = tipc_port_deref(tsock->p->ref); + p_ptr = tipc_port_deref(p_ptr->ref); if (!p_ptr) return -EINVAL; @@ -1270,17 +1260,18 @@ static void tipc_data_ready(struct sock *sk, int len) /** * filter_connect - Handle all incoming messages for a connection-based socket - * @tsock: TIPC socket + * @port: TIPC port * @msg: message * * Returns TIPC error status code and socket error status code * once it encounters some errors */ -static u32 filter_connect(struct tipc_sock *tsock, struct sk_buff **buf) +static u32 filter_connect(struct tipc_port *port, struct sk_buff **buf) { - struct socket *sock = tsock->sk.sk_socket; + struct sock *sk = tipc_port_to_sk(port); + struct socket *sock = sk->sk_socket; struct tipc_msg *msg = buf_msg(*buf); - struct sock *sk = &tsock->sk; + u32 retval = TIPC_ERR_NO_PORT; int res; @@ -1290,10 +1281,10 @@ static u32 filter_connect(struct tipc_sock *tsock, struct sk_buff **buf) switch ((int)sock->state) { case SS_CONNECTED: /* Accept only connection-based messages sent by peer */ - if (msg_connected(msg) && tipc_port_peer_msg(tsock->p, msg)) { + if (msg_connected(msg) && tipc_port_peer_msg(port, msg)) { if (unlikely(msg_errcode(msg))) { sock->state = SS_DISCONNECTING; - __tipc_port_disconnect(tsock->p); + __tipc_port_disconnect(port); } retval = TIPC_OK; } @@ -1401,7 +1392,7 @@ static u32 filter_rcv(struct sock *sk, struct sk_buff *buf) if (msg_connected(msg)) return TIPC_ERR_NO_PORT; } else { - res = filter_connect(tipc_sk(sk), &buf); + res = filter_connect(tipc_sk_port(sk), &buf); if (res != TIPC_OK || buf == NULL) return res; } @@ -1447,9 +1438,9 @@ static int backlog_rcv(struct sock *sk, struct sk_buff *buf) * * Returns TIPC error status code (TIPC_OK if message is not to be rejected) */ -static u32 dispatch(struct tipc_port *tport, struct sk_buff *buf) +static u32 dispatch(struct tipc_port *port, struct sk_buff *buf) { - struct sock *sk = tport->sk; + struct sock *sk = tipc_port_to_sk(port); u32 res; /* @@ -1478,10 +1469,9 @@ static u32 dispatch(struct tipc_port *tport, struct sk_buff *buf) * * Called with port lock already taken. */ -static void wakeupdispatch(struct tipc_port *tport) +static void wakeupdispatch(struct tipc_port *port) { - struct sock *sk = tport->sk; - + struct sock *sk = tipc_port_to_sk(port); sk->sk_write_space(sk); } @@ -1661,8 +1651,7 @@ static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags) { struct sock *new_sk, *sk = sock->sk; struct sk_buff *buf; - struct tipc_sock *new_tsock; - struct tipc_port *new_tport; + struct tipc_port *new_port; struct tipc_msg *msg; struct tipc_portid peer; u32 new_ref; @@ -1675,7 +1664,6 @@ static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags) res = -EINVAL; goto exit; } - timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK); res = tipc_wait_for_accept(sock, timeo); if (res) @@ -1688,9 +1676,8 @@ static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags) goto exit; new_sk = new_sock->sk; - new_tsock = tipc_sk(new_sk); - new_tport = new_tsock->p; - new_ref = new_tport->ref; + new_port = tipc_sk_port(new_sk); + new_ref = new_port->ref; msg = buf_msg(buf); /* we lock on new_sk; but lockdep sees the lock on sk */ @@ -1710,8 +1697,8 @@ static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags) tipc_set_portimportance(new_ref, msg_importance(msg)); if (msg_named(msg)) { - new_tport->conn_type = msg_nametype(msg); - new_tport->conn_instance = msg_nameinst(msg); + new_port->conn_type = msg_nametype(msg); + new_port->conn_instance = msg_nameinst(msg); } /* @@ -1729,7 +1716,6 @@ static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags) skb_set_owner_r(buf, new_sk); } release_sock(new_sk); - exit: release_sock(sk); return res; diff --git a/net/tipc/socket.h b/net/tipc/socket.h new file mode 100644 index 00000000000..f1cd54a6881 --- /dev/null +++ b/net/tipc/socket.h @@ -0,0 +1,70 @@ +/* net/tipc/socket.h: Include file for TIPC socket code + * + * Copyright (c) 2014, Ericsson AB + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the names of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _TIPC_SOCK_H +#define _TIPC_SOCK_H + +#include "port.h" +#include + +/** + * struct tipc_sock - TIPC socket structure + * @sk: socket - interacts with 'port' and with user via the socket API + * @port: port - interacts with 'sk' and with the rest of the TIPC stack + * @peer_name: the peer of the connection, if any + * @conn_timeout: the time we can wait for an unresponded setup request + */ + +struct tipc_sock { + struct sock sk; + struct tipc_port port; + unsigned int conn_timeout; +}; + +static inline struct tipc_sock *tipc_sk(const struct sock *sk) +{ + return container_of(sk, struct tipc_sock, sk); +} + +static inline struct tipc_port *tipc_sk_port(const struct sock *sk) +{ + return &(tipc_sk(sk)->port); +} + +static inline struct sock *tipc_port_to_sk(const struct tipc_port *port) +{ + return &(container_of(port, struct tipc_sock, port))->sk; +} + +#endif -- cgit v1.2.3-70-g09d2 From 24be34b5a0c9114541891d29dff1152bb1a8df34 Mon Sep 17 00:00:00 2001 From: Jon Paul Maloy Date: Wed, 12 Mar 2014 11:31:10 -0400 Subject: tipc: eliminate upcall function pointers between port and socket MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Due to the original one-to-many relation between port and user API layers, upcalls to the API have been performed via function pointers, installed in struct tipc_port at creation. Since this relation now always is one-to-one, we can instead use ordinary function calls. We remove the function pointers 'dispatcher' and ´wakeup' from struct tipc_port, and replace them with calls to the renamed functions tipc_sk_rcv() and tipc_sk_wakeup(). At the same time we change the name and signature of the functions tipc_createport() and tipc_deleteport() to reflect their new role as mere initialization/destruction functions. Signed-off-by: Jon Maloy Reviewed-by: Ying Xue Reviewed-by: Erik Hugne Signed-off-by: David S. Miller --- net/tipc/link.c | 4 +--- net/tipc/port.c | 35 ++++++++++++++++------------------- net/tipc/port.h | 14 ++++---------- net/tipc/socket.c | 32 ++++++-------------------------- net/tipc/socket.h | 7 +++++++ 5 files changed, 34 insertions(+), 58 deletions(-) (limited to 'net/tipc/socket.c') diff --git a/net/tipc/link.c b/net/tipc/link.c index d1a764b9b2d..a42f4a1d3cd 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -327,8 +327,6 @@ static int link_schedule_port(struct tipc_link *l_ptr, u32 origport, u32 sz) spin_lock_bh(&tipc_port_list_lock); p_ptr = tipc_port_lock(origport); if (p_ptr) { - if (!p_ptr->wakeup) - goto exit; if (!list_empty(&p_ptr->wait_list)) goto exit; p_ptr->congested = 1; @@ -363,7 +361,7 @@ void tipc_link_wakeup_ports(struct tipc_link *l_ptr, int all) list_del_init(&p_ptr->wait_list); spin_lock_bh(p_ptr->lock); p_ptr->congested = 0; - p_ptr->wakeup(p_ptr); + tipc_port_wakeup(p_ptr); win -= p_ptr->waiting_pkts; spin_unlock_bh(p_ptr->lock); } diff --git a/net/tipc/port.c b/net/tipc/port.c index 7b027e99a5c..5d24a195ea3 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -190,33 +190,32 @@ exit: tipc_port_list_free(dp); } -/** - * tipc_createport - create a generic TIPC port + +void tipc_port_wakeup(struct tipc_port *port) +{ + tipc_sk_wakeup(tipc_port_to_sk(port)); +} + +/* tipc_port_init - intiate TIPC port and lock it * - * Returns pointer to (locked) TIPC port, or NULL if unable to create it + * Returns obtained reference if initialization is successful, zero otherwise */ -struct tipc_port *tipc_createport(struct sock *sk, - u32 (*dispatcher)(struct tipc_port *, - struct sk_buff *), - void (*wakeup)(struct tipc_port *), - const u32 importance) +u32 tipc_port_init(struct tipc_port *p_ptr, + const unsigned int importance) { - struct tipc_port *p_ptr = tipc_sk_port(sk); struct tipc_msg *msg; u32 ref; ref = tipc_ref_acquire(p_ptr, &p_ptr->lock); if (!ref) { pr_warn("Port registration failed, ref. table exhausted\n"); - return NULL; + return 0; } p_ptr->max_pkt = MAX_PKT_DEFAULT; p_ptr->ref = ref; INIT_LIST_HEAD(&p_ptr->wait_list); INIT_LIST_HEAD(&p_ptr->subscription.nodesub_list); - p_ptr->dispatcher = dispatcher; - p_ptr->wakeup = wakeup; k_init_timer(&p_ptr->timer, (Handler)port_timeout, ref); INIT_LIST_HEAD(&p_ptr->publications); INIT_LIST_HEAD(&p_ptr->port_list); @@ -232,10 +231,10 @@ struct tipc_port *tipc_createport(struct sock *sk, msg_set_origport(msg, ref); list_add_tail(&p_ptr->port_list, &ports); spin_unlock_bh(&tipc_port_list_lock); - return p_ptr; + return ref; } -int tipc_deleteport(struct tipc_port *p_ptr) +void tipc_port_destroy(struct tipc_port *p_ptr) { struct sk_buff *buf = NULL; @@ -257,7 +256,6 @@ int tipc_deleteport(struct tipc_port *p_ptr) spin_unlock_bh(&tipc_port_list_lock); k_term_timer(&p_ptr->timer); tipc_net_route_msg(buf); - return 0; } static int port_unreliable(struct tipc_port *p_ptr) @@ -530,13 +528,12 @@ void tipc_port_proto_rcv(struct sk_buff *buf) /* Process protocol message sent by peer */ switch (msg_type(msg)) { case CONN_ACK: - wakeable = tipc_port_congested(p_ptr) && p_ptr->congested && - p_ptr->wakeup; + wakeable = tipc_port_congested(p_ptr) && p_ptr->congested; p_ptr->acked += msg_msgcnt(msg); if (!tipc_port_congested(p_ptr)) { p_ptr->congested = 0; if (wakeable) - p_ptr->wakeup(p_ptr); + tipc_port_wakeup(p_ptr); } break; case CONN_PROBE: @@ -865,7 +862,7 @@ int tipc_port_rcv(struct sk_buff *buf) /* validate destination & pass to port, otherwise reject message */ p_ptr = tipc_port_lock(destport); if (likely(p_ptr)) { - err = p_ptr->dispatcher(p_ptr, buf); + err = tipc_sk_rcv(tipc_port_to_sk(p_ptr), buf); tipc_port_unlock(p_ptr); if (likely(!err)) return dsz; diff --git a/net/tipc/port.h b/net/tipc/port.h index 1b200624bfb..1c90cbd7499 100644 --- a/net/tipc/port.h +++ b/net/tipc/port.h @@ -59,8 +59,6 @@ * @ref: unique reference to port in TIPC object registry * @phdr: preformatted message header used when sending messages * @port_list: adjacent ports in TIPC's global list of ports - * @dispatcher: ptr to routine which handles received messages - * @wakeup: ptr to routine to call when port is no longer congested * @wait_list: adjacent ports in list of ports waiting on link congestion * @waiting_pkts: * @sent: # of non-empty messages sent by port @@ -84,8 +82,6 @@ struct tipc_port { u32 ref; struct tipc_msg phdr; struct list_head port_list; - u32 (*dispatcher)(struct tipc_port *, struct sk_buff *); - void (*wakeup)(struct tipc_port *); struct list_head wait_list; u32 waiting_pkts; u32 sent; @@ -104,17 +100,14 @@ struct tipc_port_list; /* * TIPC port manipulation routines */ -struct tipc_port *tipc_createport(struct sock *sk, - u32 (*dispatcher)(struct tipc_port *, - struct sk_buff *), - void (*wakeup)(struct tipc_port *), - const u32 importance); +u32 tipc_port_init(struct tipc_port *p_ptr, + const unsigned int importance); int tipc_reject_msg(struct sk_buff *buf, u32 err); void tipc_acknowledge(u32 port_ref, u32 ack); -int tipc_deleteport(struct tipc_port *p_ptr); +void tipc_port_destroy(struct tipc_port *p_ptr); int tipc_portimportance(u32 portref, unsigned int *importance); int tipc_set_portimportance(u32 portref, unsigned int importance); @@ -136,6 +129,7 @@ int tipc_port_disconnect(u32 portref); int tipc_port_shutdown(u32 ref); +void tipc_port_wakeup(struct tipc_port *port); /* * The following routines require that the port be locked on entry diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 912665d409d..d147eaaa6d5 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -44,10 +44,7 @@ #define CONN_TIMEOUT_DEFAULT 8000 /* default connect timeout = 8s */ - static int backlog_rcv(struct sock *sk, struct sk_buff *skb); -static u32 dispatch(struct tipc_port *tport, struct sk_buff *buf); -static void wakeupdispatch(struct tipc_port *tport); static void tipc_data_ready(struct sock *sk, int len); static void tipc_write_space(struct sock *sk); static int tipc_release(struct socket *sock); @@ -181,10 +178,8 @@ static int tipc_sk_create(struct net *net, struct socket *sock, int protocol, if (sk == NULL) return -ENOMEM; - /* Allocate TIPC port for socket to use */ - tp_ptr = tipc_createport(sk, &dispatch, &wakeupdispatch, - TIPC_LOW_IMPORTANCE); - if (unlikely(!tp_ptr)) { + tp_ptr = tipc_sk_port(sk); + if (!tipc_port_init(tp_ptr, TIPC_LOW_IMPORTANCE)) { sk_free(sk); return -ENOMEM; } @@ -199,7 +194,6 @@ static int tipc_sk_create(struct net *net, struct socket *sock, int protocol, sk->sk_data_ready = tipc_data_ready; sk->sk_write_space = tipc_write_space; tipc_sk(sk)->conn_timeout = CONN_TIMEOUT_DEFAULT; - spin_unlock_bh(tp_ptr->lock); if (sock->state == SS_READY) { @@ -207,7 +201,6 @@ static int tipc_sk_create(struct net *net, struct socket *sock, int protocol, if (sock->type == SOCK_DGRAM) tipc_set_portunreliable(tp_ptr->ref, 1); } - return 0; } @@ -337,7 +330,7 @@ static int tipc_release(struct socket *sock) * Delete TIPC port; this ensures no more messages are queued * (also disconnects an active connection & sends a 'FIN-' to peer) */ - res = tipc_deleteport(tport); + tipc_port_destroy(tport); /* Discard any remaining (connection-based) messages in receive queue */ __skb_queue_purge(&sk->sk_receive_queue); @@ -1430,17 +1423,16 @@ static int backlog_rcv(struct sock *sk, struct sk_buff *buf) } /** - * dispatch - handle incoming message - * @tport: TIPC port that received message + * tipc_sk_rcv - handle incoming message + * @sk: socket receiving message * @buf: message * * Called with port lock already taken. * * Returns TIPC error status code (TIPC_OK if message is not to be rejected) */ -static u32 dispatch(struct tipc_port *port, struct sk_buff *buf) +u32 tipc_sk_rcv(struct sock *sk, struct sk_buff *buf) { - struct sock *sk = tipc_port_to_sk(port); u32 res; /* @@ -1463,18 +1455,6 @@ static u32 dispatch(struct tipc_port *port, struct sk_buff *buf) return res; } -/** - * wakeupdispatch - wake up port after congestion - * @tport: port to wakeup - * - * Called with port lock already taken. - */ -static void wakeupdispatch(struct tipc_port *port) -{ - struct sock *sk = tipc_port_to_sk(port); - sk->sk_write_space(sk); -} - static int tipc_wait_for_connect(struct socket *sock, long *timeo_p) { struct sock *sk = sock->sk; diff --git a/net/tipc/socket.h b/net/tipc/socket.h index f1cd54a6881..a02d0bb0e2a 100644 --- a/net/tipc/socket.h +++ b/net/tipc/socket.h @@ -67,4 +67,11 @@ static inline struct sock *tipc_port_to_sk(const struct tipc_port *port) return &(container_of(port, struct tipc_sock, port))->sk; } +static inline void tipc_sk_wakeup(struct sock *sk) +{ + sk->sk_write_space(sk); +} + +u32 tipc_sk_rcv(struct sock *sk, struct sk_buff *buf); + #endif -- cgit v1.2.3-70-g09d2 From 3b4f302d85785bb1c99b3db7f9557b256baa3805 Mon Sep 17 00:00:00 2001 From: Jon Paul Maloy Date: Wed, 12 Mar 2014 11:31:11 -0400 Subject: tipc: eliminate redundant locking The three functions tipc_portimportance(), tipc_portunreliable() and tipc_portunreturnable() and their corresponding tipc_set* functions, are all grabbing port_lock when accessing the targeted port. This is unnecessary in the current code, since these calls only are made from within socket downcalls, already protected by sock_lock. We remove the redundant locking. Also, since the functions now become trivial one-liners, we move them to port.h and make them inline. Signed-off-by: Jon Maloy Reviewed-by: Ying Xue Reviewed-by: Erik Hugne Signed-off-by: David S. Miller --- net/tipc/port.c | 96 +++---------------------------------------------------- net/tipc/port.h | 42 ++++++++++++++++++------ net/tipc/socket.c | 18 +++++------ 3 files changed, 47 insertions(+), 109 deletions(-) (limited to 'net/tipc/socket.c') diff --git a/net/tipc/port.c b/net/tipc/port.c index 5d24a195ea3..ec8153f3bf3 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -258,64 +258,6 @@ void tipc_port_destroy(struct tipc_port *p_ptr) tipc_net_route_msg(buf); } -static int port_unreliable(struct tipc_port *p_ptr) -{ - return msg_src_droppable(&p_ptr->phdr); -} - -int tipc_portunreliable(u32 ref, unsigned int *isunreliable) -{ - struct tipc_port *p_ptr; - - p_ptr = tipc_port_lock(ref); - if (!p_ptr) - return -EINVAL; - *isunreliable = port_unreliable(p_ptr); - tipc_port_unlock(p_ptr); - return 0; -} - -int tipc_set_portunreliable(u32 ref, unsigned int isunreliable) -{ - struct tipc_port *p_ptr; - - p_ptr = tipc_port_lock(ref); - if (!p_ptr) - return -EINVAL; - msg_set_src_droppable(&p_ptr->phdr, (isunreliable != 0)); - tipc_port_unlock(p_ptr); - return 0; -} - -static int port_unreturnable(struct tipc_port *p_ptr) -{ - return msg_dest_droppable(&p_ptr->phdr); -} - -int tipc_portunreturnable(u32 ref, unsigned int *isunrejectable) -{ - struct tipc_port *p_ptr; - - p_ptr = tipc_port_lock(ref); - if (!p_ptr) - return -EINVAL; - *isunrejectable = port_unreturnable(p_ptr); - tipc_port_unlock(p_ptr); - return 0; -} - -int tipc_set_portunreturnable(u32 ref, unsigned int isunrejectable) -{ - struct tipc_port *p_ptr; - - p_ptr = tipc_port_lock(ref); - if (!p_ptr) - return -EINVAL; - msg_set_dest_droppable(&p_ptr->phdr, (isunrejectable != 0)); - tipc_port_unlock(p_ptr); - return 0; -} - /* * port_build_proto_msg(): create connection protocol message for port * @@ -653,34 +595,6 @@ void tipc_acknowledge(u32 ref, u32 ack) tipc_net_route_msg(buf); } -int tipc_portimportance(u32 ref, unsigned int *importance) -{ - struct tipc_port *p_ptr; - - p_ptr = tipc_port_lock(ref); - if (!p_ptr) - return -EINVAL; - *importance = (unsigned int)msg_importance(&p_ptr->phdr); - tipc_port_unlock(p_ptr); - return 0; -} - -int tipc_set_portimportance(u32 ref, unsigned int imp) -{ - struct tipc_port *p_ptr; - - if (imp > TIPC_CRITICAL_IMPORTANCE) - return -EINVAL; - - p_ptr = tipc_port_lock(ref); - if (!p_ptr) - return -EINVAL; - msg_set_importance(&p_ptr->phdr, (u32)imp); - tipc_port_unlock(p_ptr); - return 0; -} - - int tipc_publish(struct tipc_port *p_ptr, unsigned int scope, struct tipc_name_seq const *seq) { @@ -919,7 +833,7 @@ int tipc_send(u32 ref, struct iovec const *msg_sect, unsigned int len) return res; } } - if (port_unreliable(p_ptr)) { + if (tipc_port_unreliable(p_ptr)) { p_ptr->congested = 0; return len; } @@ -966,9 +880,9 @@ int tipc_send2name(u32 ref, struct tipc_name const *name, unsigned int domain, p_ptr->sent++; return res; } - if (port_unreliable(p_ptr)) { + if (tipc_port_unreliable(p_ptr)) return len; - } + return -ELINKCONG; } return tipc_port_iovec_reject(p_ptr, msg, msg_sect, len, @@ -1009,8 +923,8 @@ int tipc_send2port(u32 ref, struct tipc_portid const *dest, p_ptr->sent++; return res; } - if (port_unreliable(p_ptr)) { + if (tipc_port_unreliable(p_ptr)) return len; - } + return -ELINKCONG; } diff --git a/net/tipc/port.h b/net/tipc/port.h index 1c90cbd7499..53ec5f06422 100644 --- a/net/tipc/port.h +++ b/net/tipc/port.h @@ -109,15 +109,6 @@ void tipc_acknowledge(u32 port_ref, u32 ack); void tipc_port_destroy(struct tipc_port *p_ptr); -int tipc_portimportance(u32 portref, unsigned int *importance); -int tipc_set_portimportance(u32 portref, unsigned int importance); - -int tipc_portunreliable(u32 portref, unsigned int *isunreliable); -int tipc_set_portunreliable(u32 portref, unsigned int isunreliable); - -int tipc_portunreturnable(u32 portref, unsigned int *isunreturnable); -int tipc_set_portunreturnable(u32 portref, unsigned int isunreturnable); - int tipc_publish(struct tipc_port *p_ptr, unsigned int scope, struct tipc_name_seq const *name_seq); int tipc_withdraw(struct tipc_port *p_ptr, unsigned int scope, @@ -201,4 +192,37 @@ static inline u32 tipc_port_peerport(struct tipc_port *p_ptr) return msg_destport(&p_ptr->phdr); } +static inline bool tipc_port_unreliable(struct tipc_port *port) +{ + return msg_src_droppable(&port->phdr) != 0; +} + +static inline void tipc_port_set_unreliable(struct tipc_port *port, + bool unreliable) +{ + msg_set_src_droppable(&port->phdr, unreliable ? 1 : 0); +} + +static inline bool tipc_port_unreturnable(struct tipc_port *port) +{ + return msg_dest_droppable(&port->phdr) != 0; +} + +static inline void tipc_port_set_unreturnable(struct tipc_port *port, + bool unreturnable) +{ + msg_set_dest_droppable(&port->phdr, unreturnable ? 1 : 0); +} + + +static inline int tipc_port_importance(struct tipc_port *port) +{ + return msg_importance(&port->phdr); +} + +static inline void tipc_port_set_importance(struct tipc_port *port, int imp) +{ + msg_set_importance(&port->phdr, (u32)imp); +} + #endif diff --git a/net/tipc/socket.c b/net/tipc/socket.c index d147eaaa6d5..6c719882980 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -197,9 +197,9 @@ static int tipc_sk_create(struct net *net, struct socket *sock, int protocol, spin_unlock_bh(tp_ptr->lock); if (sock->state == SS_READY) { - tipc_set_portunreturnable(tp_ptr->ref, 1); + tipc_port_set_unreturnable(tp_ptr, true); if (sock->type == SOCK_DGRAM) - tipc_set_portunreliable(tp_ptr->ref, 1); + tipc_port_set_unreliable(tp_ptr, true); } return 0; } @@ -1675,7 +1675,7 @@ static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags) tipc_port_connect(new_ref, &peer); new_sock->state = SS_CONNECTED; - tipc_set_portimportance(new_ref, msg_importance(msg)); + tipc_port_set_importance(new_port, msg_importance(msg)); if (msg_named(msg)) { new_port->conn_type = msg_nametype(msg); new_port->conn_instance = msg_nameinst(msg); @@ -1797,16 +1797,16 @@ static int tipc_setsockopt(struct socket *sock, int lvl, int opt, switch (opt) { case TIPC_IMPORTANCE: - res = tipc_set_portimportance(tport->ref, value); + tipc_port_set_importance(tport, value); break; case TIPC_SRC_DROPPABLE: if (sock->type != SOCK_STREAM) - res = tipc_set_portunreliable(tport->ref, value); + tipc_port_set_unreliable(tport, value); else res = -ENOPROTOOPT; break; case TIPC_DEST_DROPPABLE: - res = tipc_set_portunreturnable(tport->ref, value); + tipc_port_set_unreturnable(tport, value); break; case TIPC_CONN_TIMEOUT: tipc_sk(sk)->conn_timeout = value; @@ -1855,13 +1855,13 @@ static int tipc_getsockopt(struct socket *sock, int lvl, int opt, switch (opt) { case TIPC_IMPORTANCE: - res = tipc_portimportance(tport->ref, &value); + value = tipc_port_importance(tport); break; case TIPC_SRC_DROPPABLE: - res = tipc_portunreliable(tport->ref, &value); + value = tipc_port_unreliable(tport); break; case TIPC_DEST_DROPPABLE: - res = tipc_portunreturnable(tport->ref, &value); + value = tipc_port_unreturnable(tport); break; case TIPC_CONN_TIMEOUT: value = tipc_sk(sk)->conn_timeout; -- cgit v1.2.3-70-g09d2 From 58ed944241794087df1edadfa66795c966bf1604 Mon Sep 17 00:00:00 2001 From: Jon Paul Maloy Date: Wed, 12 Mar 2014 11:31:12 -0400 Subject: tipc: align usage of variable names and macros in socket The practice of naming variables in TIPC is inconistent, sometimes even within the same file. In this commit we align variable names and declarations within socket.c, and function and macro names within socket.h. We also reduce the number of conversion macros to two, in order to make usage less obsure. These changes are purely cosmetic. Signed-off-by: Jon Maloy Reviewed-by: Ying Xue Reviewed-by: Erik Hugne Signed-off-by: David S. Miller --- net/tipc/port.c | 4 +- net/tipc/socket.c | 165 ++++++++++++++++++++++++++++++------------------------ net/tipc/socket.h | 13 ++--- 3 files changed, 98 insertions(+), 84 deletions(-) (limited to 'net/tipc/socket.c') diff --git a/net/tipc/port.c b/net/tipc/port.c index ec8153f3bf3..894c0d9fbe0 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -193,7 +193,7 @@ exit: void tipc_port_wakeup(struct tipc_port *port) { - tipc_sk_wakeup(tipc_port_to_sk(port)); + tipc_sock_wakeup(tipc_port_to_sock(port)); } /* tipc_port_init - intiate TIPC port and lock it @@ -776,7 +776,7 @@ int tipc_port_rcv(struct sk_buff *buf) /* validate destination & pass to port, otherwise reject message */ p_ptr = tipc_port_lock(destport); if (likely(p_ptr)) { - err = tipc_sk_rcv(tipc_port_to_sk(p_ptr), buf); + err = tipc_sk_rcv(&tipc_port_to_sock(p_ptr)->sk, buf); tipc_port_unlock(p_ptr); if (likely(!err)) return dsz; diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 6c719882980..9cea92ee6c8 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -139,13 +139,15 @@ static void reject_rx_queue(struct sock *sk) * * Returns 0 on success, errno otherwise */ -static int tipc_sk_create(struct net *net, struct socket *sock, int protocol, - int kern) +static int tipc_sk_create(struct net *net, struct socket *sock, + int protocol, int kern) { const struct proto_ops *ops; socket_state state; struct sock *sk; - struct tipc_port *tp_ptr; + struct tipc_sock *tsk; + struct tipc_port *port; + u32 ref; /* Validate arguments */ if (unlikely(protocol != 0)) @@ -178,8 +180,12 @@ static int tipc_sk_create(struct net *net, struct socket *sock, int protocol, if (sk == NULL) return -ENOMEM; - tp_ptr = tipc_sk_port(sk); - if (!tipc_port_init(tp_ptr, TIPC_LOW_IMPORTANCE)) { + tsk = tipc_sk(sk); + port = &tsk->port; + + ref = tipc_port_init(port, TIPC_LOW_IMPORTANCE); + if (!ref) { + pr_warn("Socket registration failed, ref. table exhausted\n"); sk_free(sk); return -ENOMEM; } @@ -194,12 +200,12 @@ static int tipc_sk_create(struct net *net, struct socket *sock, int protocol, sk->sk_data_ready = tipc_data_ready; sk->sk_write_space = tipc_write_space; tipc_sk(sk)->conn_timeout = CONN_TIMEOUT_DEFAULT; - spin_unlock_bh(tp_ptr->lock); + tipc_port_unlock(port); if (sock->state == SS_READY) { - tipc_port_set_unreturnable(tp_ptr, true); + tipc_port_set_unreturnable(port, true); if (sock->type == SOCK_DGRAM) - tipc_port_set_unreliable(tp_ptr, true); + tipc_port_set_unreliable(port, true); } return 0; } @@ -292,7 +298,8 @@ int tipc_sock_accept_local(struct socket *sock, struct socket **newsock, static int tipc_release(struct socket *sock) { struct sock *sk = sock->sk; - struct tipc_port *tport; + struct tipc_sock *tsk; + struct tipc_port *port; struct sk_buff *buf; int res; @@ -303,7 +310,8 @@ static int tipc_release(struct socket *sock) if (sk == NULL) return 0; - tport = tipc_sk_port(sk); + tsk = tipc_sk(sk); + port = &tsk->port; lock_sock(sk); /* @@ -320,17 +328,16 @@ static int tipc_release(struct socket *sock) if ((sock->state == SS_CONNECTING) || (sock->state == SS_CONNECTED)) { sock->state = SS_DISCONNECTING; - tipc_port_disconnect(tport->ref); + tipc_port_disconnect(port->ref); } tipc_reject_msg(buf, TIPC_ERR_NO_PORT); } } - /* - * Delete TIPC port; this ensures no more messages are queued - * (also disconnects an active connection & sends a 'FIN-' to peer) + /* Destroy TIPC port; also disconnects an active connection and + * sends a 'FIN-' to peer. */ - tipc_port_destroy(tport); + tipc_port_destroy(port); /* Discard any remaining (connection-based) messages in receive queue */ __skb_queue_purge(&sk->sk_receive_queue); @@ -365,12 +372,12 @@ static int tipc_bind(struct socket *sock, struct sockaddr *uaddr, { struct sock *sk = sock->sk; struct sockaddr_tipc *addr = (struct sockaddr_tipc *)uaddr; - struct tipc_port *tport = tipc_sk_port(sock->sk); + struct tipc_sock *tsk = tipc_sk(sk); int res = -EINVAL; lock_sock(sk); if (unlikely(!uaddr_len)) { - res = tipc_withdraw(tport, 0, NULL); + res = tipc_withdraw(&tsk->port, 0, NULL); goto exit; } @@ -398,8 +405,8 @@ static int tipc_bind(struct socket *sock, struct sockaddr *uaddr, } res = (addr->scope > 0) ? - tipc_publish(tport, addr->scope, &addr->addr.nameseq) : - tipc_withdraw(tport, -addr->scope, &addr->addr.nameseq); + tipc_publish(&tsk->port, addr->scope, &addr->addr.nameseq) : + tipc_withdraw(&tsk->port, -addr->scope, &addr->addr.nameseq); exit: release_sock(sk); return res; @@ -422,17 +429,17 @@ static int tipc_getname(struct socket *sock, struct sockaddr *uaddr, int *uaddr_len, int peer) { struct sockaddr_tipc *addr = (struct sockaddr_tipc *)uaddr; - struct tipc_port *port = tipc_sk_port(sock->sk); + struct tipc_sock *tsk = tipc_sk(sock->sk); memset(addr, 0, sizeof(*addr)); if (peer) { if ((sock->state != SS_CONNECTED) && ((peer != 2) || (sock->state != SS_DISCONNECTING))) return -ENOTCONN; - addr->addr.id.ref = tipc_port_peerport(port); - addr->addr.id.node = tipc_port_peernode(port); + addr->addr.id.ref = tipc_port_peerport(&tsk->port); + addr->addr.id.node = tipc_port_peernode(&tsk->port); } else { - addr->addr.id.ref = port->ref; + addr->addr.id.ref = tsk->port.ref; addr->addr.id.node = tipc_own_addr; } @@ -489,18 +496,19 @@ static unsigned int tipc_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; + struct tipc_sock *tsk = tipc_sk(sk); u32 mask = 0; sock_poll_wait(file, sk_sleep(sk), wait); switch ((int)sock->state) { case SS_UNCONNECTED: - if (!tipc_sk_port(sk)->congested) + if (!tsk->port.congested) mask |= POLLOUT; break; case SS_READY: case SS_CONNECTED: - if (!tipc_sk_port(sk)->congested) + if (!tsk->port.congested) mask |= POLLOUT; /* fall thru' */ case SS_CONNECTING: @@ -550,7 +558,7 @@ static int dest_name_check(struct sockaddr_tipc *dest, struct msghdr *m) static int tipc_wait_for_sndmsg(struct socket *sock, long *timeo_p) { struct sock *sk = sock->sk; - struct tipc_port *tport = tipc_sk_port(sk); + struct tipc_sock *tsk = tipc_sk(sk); DEFINE_WAIT(wait); int done; @@ -566,12 +574,13 @@ static int tipc_wait_for_sndmsg(struct socket *sock, long *timeo_p) return sock_intr_errno(*timeo_p); prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); - done = sk_wait_event(sk, timeo_p, !tport->congested); + done = sk_wait_event(sk, timeo_p, !tsk->port.congested); finish_wait(sk_sleep(sk), &wait); } while (!done); return 0; } + /** * tipc_sendmsg - send message in connectionless manner * @iocb: if NULL, indicates that socket lock is already held @@ -590,10 +599,11 @@ static int tipc_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *m, size_t total_len) { struct sock *sk = sock->sk; - struct tipc_port *tport = tipc_sk_port(sk); + struct tipc_sock *tsk = tipc_sk(sk); 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)) @@ -617,13 +627,13 @@ static int tipc_sendmsg(struct kiocb *iocb, struct socket *sock, res = -EISCONN; goto exit; } - if (tport->published) { + if (tsk->port.published) { res = -EOPNOTSUPP; goto exit; } if (dest->addrtype == TIPC_ADDR_NAME) { - tport->conn_type = dest->addr.name.name.type; - tport->conn_instance = dest->addr.name.name.instance; + tsk->port.conn_type = dest->addr.name.name.type; + tsk->port.conn_instance = dest->addr.name.name.instance; } /* Abort any pending connection attempts (very unlikely) */ @@ -636,13 +646,13 @@ static int tipc_sendmsg(struct kiocb *iocb, struct socket *sock, res = dest_name_check(dest, m); if (res) break; - res = tipc_send2name(tport->ref, + res = tipc_send2name(ref, &dest->addr.name.name, dest->addr.name.domain, m->msg_iov, total_len); } else if (dest->addrtype == TIPC_ADDR_ID) { - res = tipc_send2port(tport->ref, + res = tipc_send2port(ref, &dest->addr.id, m->msg_iov, total_len); @@ -654,7 +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(tport->ref, + res = tipc_port_mcast_xmit(ref, &dest->addr.nameseq, m->msg_iov, total_len); @@ -678,7 +688,8 @@ exit: static int tipc_wait_for_sndpkt(struct socket *sock, long *timeo_p) { struct sock *sk = sock->sk; - struct tipc_port *tport = tipc_sk_port(sk); + struct tipc_sock *tsk = tipc_sk(sk); + struct tipc_port *port = &tsk->port; DEFINE_WAIT(wait); int done; @@ -697,7 +708,7 @@ static int tipc_wait_for_sndpkt(struct socket *sock, long *timeo_p) prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); done = sk_wait_event(sk, timeo_p, - (!tport->congested || !tport->connected)); + (!port->congested || !port->connected)); finish_wait(sk_sleep(sk), &wait); } while (!done); return 0; @@ -718,7 +729,7 @@ static int tipc_send_packet(struct kiocb *iocb, struct socket *sock, struct msghdr *m, size_t total_len) { struct sock *sk = sock->sk; - struct tipc_port *tport = tipc_sk_port(sk); + struct tipc_sock *tsk = tipc_sk(sk); DECLARE_SOCKADDR(struct sockaddr_tipc *, dest, m->msg_name); int res = -EINVAL; long timeo; @@ -743,7 +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(tport->ref, m->msg_iov, total_len); + res = tipc_send(tsk->port.ref, m->msg_iov, total_len); if (likely(res != -ELINKCONG)) break; res = tipc_wait_for_sndpkt(sock, &timeo); @@ -772,7 +783,7 @@ static int tipc_send_stream(struct kiocb *iocb, struct socket *sock, struct msghdr *m, size_t total_len) { struct sock *sk = sock->sk; - struct tipc_port *tport = tipc_sk_port(sk); + struct tipc_sock *tsk = tipc_sk(sk); struct msghdr my_msg; struct iovec my_iov; struct iovec *curr_iov; @@ -820,14 +831,14 @@ static int tipc_send_stream(struct kiocb *iocb, struct socket *sock, my_msg.msg_name = NULL; bytes_sent = 0; - hdr_size = msg_hdr_sz(&tport->phdr); + hdr_size = msg_hdr_sz(&tsk->port.phdr); while (curr_iovlen--) { curr_start = curr_iov->iov_base; curr_left = curr_iov->iov_len; while (curr_left) { - bytes_to_send = tport->max_pkt - hdr_size; + bytes_to_send = tsk->port.max_pkt - hdr_size; if (bytes_to_send > TIPC_MAX_USER_MSG_SIZE) bytes_to_send = TIPC_MAX_USER_MSG_SIZE; if (curr_left < bytes_to_send) @@ -856,28 +867,29 @@ exit: /** * auto_connect - complete connection setup to a remote port - * @sock: socket structure + * @tsk: tipc socket structure * @msg: peer's response message * * Returns 0 on success, errno otherwise */ -static int auto_connect(struct socket *sock, struct tipc_msg *msg) +static int auto_connect(struct tipc_sock *tsk, struct tipc_msg *msg) { - struct tipc_port *p_ptr = tipc_sk_port(sock->sk); + struct tipc_port *port = &tsk->port; + struct socket *sock = tsk->sk.sk_socket; struct tipc_portid peer; peer.ref = msg_origport(msg); peer.node = msg_orignode(msg); - p_ptr = tipc_port_deref(p_ptr->ref); - if (!p_ptr) + port = tipc_port_deref(port->ref); + if (!port) return -EINVAL; - __tipc_port_connect(p_ptr->ref, p_ptr, &peer); + __tipc_port_connect(port->ref, port, &peer); if (msg_importance(msg) > TIPC_CRITICAL_IMPORTANCE) return -EINVAL; - msg_set_importance(&p_ptr->phdr, (u32)msg_importance(msg)); + msg_set_importance(&port->phdr, (u32)msg_importance(msg)); sock->state = SS_CONNECTED; return 0; } @@ -1023,7 +1035,8 @@ static int tipc_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *m, size_t buf_len, int flags) { struct sock *sk = sock->sk; - struct tipc_port *tport = tipc_sk_port(sk); + struct tipc_sock *tsk = tipc_sk(sk); + struct tipc_port *port = &tsk->port; struct sk_buff *buf; struct tipc_msg *msg; long timeo; @@ -1066,7 +1079,7 @@ restart: set_orig_addr(m, msg); /* Capture ancillary data (optional) */ - res = anc_data_recv(m, msg, tport); + res = anc_data_recv(m, msg, port); if (res) goto exit; @@ -1092,8 +1105,8 @@ restart: /* Consume received message (optional) */ if (likely(!(flags & MSG_PEEK))) { if ((sock->state != SS_READY) && - (++tport->conn_unacked >= TIPC_FLOW_CONTROL_WIN)) - tipc_acknowledge(tport->ref, tport->conn_unacked); + (++port->conn_unacked >= TIPC_FLOW_CONTROL_WIN)) + tipc_acknowledge(port->ref, port->conn_unacked); advance_rx_queue(sk); } exit: @@ -1117,7 +1130,8 @@ static int tipc_recv_stream(struct kiocb *iocb, struct socket *sock, struct msghdr *m, size_t buf_len, int flags) { struct sock *sk = sock->sk; - struct tipc_port *tport = tipc_sk_port(sk); + struct tipc_sock *tsk = tipc_sk(sk); + struct tipc_port *port = &tsk->port; struct sk_buff *buf; struct tipc_msg *msg; long timeo; @@ -1162,7 +1176,7 @@ restart: /* Optionally capture sender's address & ancillary data of first msg */ if (sz_copied == 0) { set_orig_addr(m, msg); - res = anc_data_recv(m, msg, tport); + res = anc_data_recv(m, msg, port); if (res) goto exit; } @@ -1200,8 +1214,8 @@ restart: /* Consume received message (optional) */ if (likely(!(flags & MSG_PEEK))) { - if (unlikely(++tport->conn_unacked >= TIPC_FLOW_CONTROL_WIN)) - tipc_acknowledge(tport->ref, tport->conn_unacked); + if (unlikely(++port->conn_unacked >= TIPC_FLOW_CONTROL_WIN)) + tipc_acknowledge(port->ref, port->conn_unacked); advance_rx_queue(sk); } @@ -1253,15 +1267,16 @@ static void tipc_data_ready(struct sock *sk, int len) /** * filter_connect - Handle all incoming messages for a connection-based socket - * @port: TIPC port + * @tsk: TIPC socket * @msg: message * * Returns TIPC error status code and socket error status code * once it encounters some errors */ -static u32 filter_connect(struct tipc_port *port, struct sk_buff **buf) +static u32 filter_connect(struct tipc_sock *tsk, struct sk_buff **buf) { - struct sock *sk = tipc_port_to_sk(port); + struct sock *sk = &tsk->sk; + struct tipc_port *port = &tsk->port; struct socket *sock = sk->sk_socket; struct tipc_msg *msg = buf_msg(*buf); @@ -1294,7 +1309,7 @@ static u32 filter_connect(struct tipc_port *port, struct sk_buff **buf) if (unlikely(!msg_connected(msg))) break; - res = auto_connect(sock, msg); + res = auto_connect(tsk, msg); if (res) { sock->state = SS_DISCONNECTING; sk->sk_err = -res; @@ -1373,6 +1388,7 @@ static unsigned int rcvbuf_limit(struct sock *sk, struct sk_buff *buf) static u32 filter_rcv(struct sock *sk, struct sk_buff *buf) { struct socket *sock = sk->sk_socket; + struct tipc_sock *tsk = tipc_sk(sk); struct tipc_msg *msg = buf_msg(buf); unsigned int limit = rcvbuf_limit(sk, buf); u32 res = TIPC_OK; @@ -1385,7 +1401,7 @@ static u32 filter_rcv(struct sock *sk, struct sk_buff *buf) if (msg_connected(msg)) return TIPC_ERR_NO_PORT; } else { - res = filter_connect(tipc_sk_port(sk), &buf); + res = filter_connect(tsk, &buf); if (res != TIPC_OK || buf == NULL) return res; } @@ -1656,7 +1672,7 @@ static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags) goto exit; new_sk = new_sock->sk; - new_port = tipc_sk_port(new_sk); + new_port = &tipc_sk(new_sk)->port; new_ref = new_port->ref; msg = buf_msg(buf); @@ -1713,7 +1729,8 @@ exit: static int tipc_shutdown(struct socket *sock, int how) { struct sock *sk = sock->sk; - struct tipc_port *tport = tipc_sk_port(sk); + struct tipc_sock *tsk = tipc_sk(sk); + struct tipc_port *port = &tsk->port; struct sk_buff *buf; int res; @@ -1734,10 +1751,10 @@ restart: kfree_skb(buf); goto restart; } - tipc_port_disconnect(tport->ref); + tipc_port_disconnect(port->ref); tipc_reject_msg(buf, TIPC_CONN_SHUTDOWN); } else { - tipc_port_shutdown(tport->ref); + tipc_port_shutdown(port->ref); } sock->state = SS_DISCONNECTING; @@ -1779,7 +1796,8 @@ static int tipc_setsockopt(struct socket *sock, int lvl, int opt, char __user *ov, unsigned int ol) { struct sock *sk = sock->sk; - struct tipc_port *tport = tipc_sk_port(sk); + struct tipc_sock *tsk = tipc_sk(sk); + struct tipc_port *port = &tsk->port; u32 value; int res; @@ -1797,16 +1815,16 @@ static int tipc_setsockopt(struct socket *sock, int lvl, int opt, switch (opt) { case TIPC_IMPORTANCE: - tipc_port_set_importance(tport, value); + tipc_port_set_importance(port, value); break; case TIPC_SRC_DROPPABLE: if (sock->type != SOCK_STREAM) - tipc_port_set_unreliable(tport, value); + tipc_port_set_unreliable(port, value); else res = -ENOPROTOOPT; break; case TIPC_DEST_DROPPABLE: - tipc_port_set_unreturnable(tport, value); + tipc_port_set_unreturnable(port, value); break; case TIPC_CONN_TIMEOUT: tipc_sk(sk)->conn_timeout = value; @@ -1838,7 +1856,8 @@ static int tipc_getsockopt(struct socket *sock, int lvl, int opt, char __user *ov, int __user *ol) { struct sock *sk = sock->sk; - struct tipc_port *tport = tipc_sk_port(sk); + struct tipc_sock *tsk = tipc_sk(sk); + struct tipc_port *port = &tsk->port; int len; u32 value; int res; @@ -1855,13 +1874,13 @@ static int tipc_getsockopt(struct socket *sock, int lvl, int opt, switch (opt) { case TIPC_IMPORTANCE: - value = tipc_port_importance(tport); + value = tipc_port_importance(port); break; case TIPC_SRC_DROPPABLE: - value = tipc_port_unreliable(tport); + value = tipc_port_unreliable(port); break; case TIPC_DEST_DROPPABLE: - value = tipc_port_unreturnable(tport); + value = tipc_port_unreturnable(port); break; case TIPC_CONN_TIMEOUT: value = tipc_sk(sk)->conn_timeout; diff --git a/net/tipc/socket.h b/net/tipc/socket.h index a02d0bb0e2a..74e5c7f195a 100644 --- a/net/tipc/socket.h +++ b/net/tipc/socket.h @@ -57,19 +57,14 @@ static inline struct tipc_sock *tipc_sk(const struct sock *sk) return container_of(sk, struct tipc_sock, sk); } -static inline struct tipc_port *tipc_sk_port(const struct sock *sk) +static inline struct tipc_sock *tipc_port_to_sock(const struct tipc_port *port) { - return &(tipc_sk(sk)->port); + return container_of(port, struct tipc_sock, port); } -static inline struct sock *tipc_port_to_sk(const struct tipc_port *port) +static inline void tipc_sock_wakeup(struct tipc_sock *tsk) { - return &(container_of(port, struct tipc_sock, port))->sk; -} - -static inline void tipc_sk_wakeup(struct sock *sk) -{ - sk->sk_write_space(sk); + tsk->sk.sk_write_space(&tsk->sk); } u32 tipc_sk_rcv(struct sock *sk, struct sk_buff *buf); -- cgit v1.2.3-70-g09d2 From 5c311421a28051036a114aec972d36c72114ed4c Mon Sep 17 00:00:00 2001 From: Jon Paul Maloy Date: Wed, 12 Mar 2014 11:31:13 -0400 Subject: tipc: eliminate redundant lookups in registry 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 Reviewed-by: Ying Xue Reviewed-by: Erik Hugne Signed-off-by: David S. Miller --- net/tipc/port.c | 39 +++++++++++++++++++-------------------- net/tipc/port.h | 43 ++++++++++++++++++++++++++----------------- net/tipc/ref.c | 17 ----------------- net/tipc/ref.h | 1 - net/tipc/socket.c | 14 +++++--------- 5 files changed, 50 insertions(+), 64 deletions(-) (limited to 'net/tipc/socket.c') diff --git a/net/tipc/port.c b/net/tipc/port.c index 894c0d9fbe0..5c14c7801ee 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -80,20 +80,18 @@ int tipc_port_peer_msg(struct tipc_port *p_ptr, struct tipc_msg *msg) * tipc_port_mcast_xmit - send a multicast message to local and remote * destinations */ -int tipc_port_mcast_xmit(u32 ref, struct tipc_name_seq const *seq, - struct iovec const *msg_sect, unsigned int len) +int tipc_port_mcast_xmit(struct tipc_port *oport, + struct tipc_name_seq const *seq, + struct iovec const *msg_sect, + unsigned int len) { struct tipc_msg *hdr; struct sk_buff *buf; struct sk_buff *ibuf = NULL; struct tipc_port_list dports = {0, NULL, }; - struct tipc_port *oport = tipc_port_deref(ref); int ext_targets; int res; - if (unlikely(!oport)) - return -EINVAL; - /* Create multicast message */ hdr = &oport->phdr; msg_set_type(hdr, TIPC_MCAST_MSG); @@ -807,14 +805,14 @@ static int tipc_port_iovec_rcv(struct tipc_port *sender, /** * tipc_send - send message sections on connection */ -int tipc_send(u32 ref, struct iovec const *msg_sect, unsigned int len) +int tipc_send(struct tipc_port *p_ptr, + struct iovec const *msg_sect, + unsigned int len) { - struct tipc_port *p_ptr; u32 destnode; int res; - p_ptr = tipc_port_deref(ref); - if (!p_ptr || !p_ptr->connected) + if (!p_ptr->connected) return -EINVAL; p_ptr->congested = 1; @@ -843,17 +841,18 @@ int tipc_send(u32 ref, struct iovec const *msg_sect, unsigned int len) /** * tipc_send2name - send message sections to port name */ -int tipc_send2name(u32 ref, struct tipc_name const *name, unsigned int domain, - struct iovec const *msg_sect, unsigned int len) +int tipc_send2name(struct tipc_port *p_ptr, + struct tipc_name const *name, + unsigned int domain, + struct iovec const *msg_sect, + unsigned int len) { - struct tipc_port *p_ptr; struct tipc_msg *msg; u32 destnode = domain; u32 destport; int res; - p_ptr = tipc_port_deref(ref); - if (!p_ptr || p_ptr->connected) + if (p_ptr->connected) return -EINVAL; msg = &p_ptr->phdr; @@ -892,15 +891,15 @@ int tipc_send2name(u32 ref, struct tipc_name const *name, unsigned int domain, /** * tipc_send2port - send message sections to port identity */ -int tipc_send2port(u32 ref, struct tipc_portid const *dest, - struct iovec const *msg_sect, unsigned int len) +int tipc_send2port(struct tipc_port *p_ptr, + struct tipc_portid const *dest, + struct iovec const *msg_sect, + unsigned int len) { - struct tipc_port *p_ptr; struct tipc_msg *msg; int res; - p_ptr = tipc_port_deref(ref); - if (!p_ptr || p_ptr->connected) + if (p_ptr->connected) return -EINVAL; msg = &p_ptr->phdr; diff --git a/net/tipc/port.h b/net/tipc/port.h index 53ec5f06422..a00397393bd 100644 --- a/net/tipc/port.h +++ b/net/tipc/port.h @@ -111,6 +111,7 @@ void tipc_port_destroy(struct tipc_port *p_ptr); int tipc_publish(struct tipc_port *p_ptr, unsigned int scope, struct tipc_name_seq const *name_seq); + int tipc_withdraw(struct tipc_port *p_ptr, unsigned int scope, struct tipc_name_seq const *name_seq); @@ -134,20 +135,33 @@ int tipc_port_peer_msg(struct tipc_port *p_ptr, struct tipc_msg *msg); * TIPC messaging routines */ int tipc_port_rcv(struct sk_buff *buf); -int tipc_send(u32 portref, struct iovec const *msg_sect, unsigned int len); - -int tipc_send2name(u32 portref, struct tipc_name const *name, u32 domain, - struct iovec const *msg_sect, unsigned int len); - -int tipc_send2port(u32 portref, struct tipc_portid const *dest, - struct iovec const *msg_sect, unsigned int len); - -int tipc_port_mcast_xmit(u32 portref, struct tipc_name_seq const *seq, - struct iovec const *msg, unsigned int len); -int tipc_port_iovec_reject(struct tipc_port *p_ptr, struct tipc_msg *hdr, - struct iovec const *msg_sect, unsigned int len, +int tipc_send(struct tipc_port *port, + struct iovec const *msg_sect, + unsigned int len); + +int tipc_send2name(struct tipc_port *port, + struct tipc_name const *name, + u32 domain, + struct iovec const *msg_sect, + unsigned int len); + +int tipc_send2port(struct tipc_port *port, + struct tipc_portid const *dest, + struct iovec const *msg_sect, + unsigned int len); + +int tipc_port_mcast_xmit(struct tipc_port *port, + struct tipc_name_seq const *seq, + struct iovec const *msg, + unsigned int len); + +int tipc_port_iovec_reject(struct tipc_port *p_ptr, + struct tipc_msg *hdr, + struct iovec const *msg_sect, + unsigned int len, int err); + struct sk_buff *tipc_port_get_ports(void); void tipc_port_proto_rcv(struct sk_buff *buf); void tipc_port_mcast_rcv(struct sk_buff *buf, struct tipc_port_list *dp); @@ -171,11 +185,6 @@ static inline void tipc_port_unlock(struct tipc_port *p_ptr) spin_unlock_bh(p_ptr->lock); } -static inline struct tipc_port *tipc_port_deref(u32 ref) -{ - return (struct tipc_port *)tipc_ref_deref(ref); -} - static inline int tipc_port_congested(struct tipc_port *p_ptr) { return (p_ptr->sent - p_ptr->acked) >= (TIPC_FLOW_CONTROL_WIN * 2); diff --git a/net/tipc/ref.c b/net/tipc/ref.c index 67176b5e14f..3d4ecd754ee 100644 --- a/net/tipc/ref.c +++ b/net/tipc/ref.c @@ -264,20 +264,3 @@ void *tipc_ref_lock(u32 ref) } return NULL; } - - -/** - * tipc_ref_deref - return pointer referenced object (without locking it) - */ -void *tipc_ref_deref(u32 ref) -{ - if (likely(tipc_ref_table.entries)) { - struct reference *entry; - - entry = &tipc_ref_table.entries[ref & - tipc_ref_table.index_mask]; - if (likely(entry->ref == ref)) - return entry->object; - } - return NULL; -} diff --git a/net/tipc/ref.h b/net/tipc/ref.h index 5bc8e7ab84d..d01aa1df63b 100644 --- a/net/tipc/ref.h +++ b/net/tipc/ref.h @@ -44,6 +44,5 @@ u32 tipc_ref_acquire(void *object, spinlock_t **lock); void tipc_ref_discard(u32 ref); void *tipc_ref_lock(u32 ref); -void *tipc_ref_deref(u32 ref); #endif diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 9cea92ee6c8..2a89bdb331b 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -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) -- cgit v1.2.3-70-g09d2