diff options
| -rw-r--r-- | net/tipc/socket.c | 63 |
1 files changed, 33 insertions, 30 deletions
diff --git a/net/tipc/socket.c b/net/tipc/socket.c index c8341d1f995e..b2ae25ae3038 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -1438,6 +1438,28 @@ static void wakeupdispatch(struct tipc_port *tport) sk->sk_write_space(sk); } +static int tipc_wait_for_connect(struct socket *sock, long *timeo_p) +{ + struct sock *sk = sock->sk; + DEFINE_WAIT(wait); + int done; + + do { + int err = sock_error(sk); + if (err) + return err; + if (!*timeo_p) + return -ETIMEDOUT; + if (signal_pending(current)) + return sock_intr_errno(*timeo_p); + + prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); + done = sk_wait_event(sk, timeo_p, sock->state != SS_CONNECTING); + finish_wait(sk_sleep(sk), &wait); + } while (!done); + return 0; +} + /** * connect - establish a connection to another TIPC port * @sock: socket structure @@ -1453,7 +1475,8 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen, struct sock *sk = sock->sk; struct sockaddr_tipc *dst = (struct sockaddr_tipc *)dest; struct msghdr m = {NULL,}; - unsigned int timeout; + long timeout = (flags & O_NONBLOCK) ? 0 : tipc_sk(sk)->conn_timeout; + socket_state previous; int res; lock_sock(sk); @@ -1475,8 +1498,7 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen, goto exit; } - timeout = (flags & O_NONBLOCK) ? 0 : tipc_sk(sk)->conn_timeout; - + previous = sock->state; switch (sock->state) { case SS_UNCONNECTED: /* Send a 'SYN-' to destination */ @@ -1498,41 +1520,22 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen, * case is EINPROGRESS, rather than EALREADY. */ res = -EINPROGRESS; - break; case SS_CONNECTING: - res = -EALREADY; + if (previous == SS_CONNECTING) + res = -EALREADY; + if (!timeout) + goto exit; + timeout = msecs_to_jiffies(timeout); + /* Wait until an 'ACK' or 'RST' arrives, or a timeout occurs */ + res = tipc_wait_for_connect(sock, &timeout); break; case SS_CONNECTED: res = -EISCONN; break; default: res = -EINVAL; - goto exit; - } - - if (sock->state == SS_CONNECTING) { - if (!timeout) - goto exit; - - /* Wait until an 'ACK' or 'RST' arrives, or a timeout occurs */ - release_sock(sk); - res = wait_event_interruptible_timeout(*sk_sleep(sk), - sock->state != SS_CONNECTING, - timeout ? (long)msecs_to_jiffies(timeout) - : MAX_SCHEDULE_TIMEOUT); - if (res <= 0) { - if (res == 0) - res = -ETIMEDOUT; - return res; - } - lock_sock(sk); + break; } - - if (unlikely(sock->state == SS_DISCONNECTING)) - res = sock_error(sk); - else - res = 0; - exit: release_sock(sk); return res; |