diff options
author | Ingo Molnar <mingo@elte.hu> | 2009-06-07 12:22:15 +0200 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2009-06-07 12:22:15 +0200 |
commit | 5f4457a4f62cc9d78e04c0eb12ff0540899aad89 (patch) | |
tree | 0b973d527ea6b2ae31e08da0746b4965a3c5a6d8 /net/iucv/af_iucv.c | |
parent | 9b94b3a19b13e094c10f65f24bc358f6ffe4eacd (diff) | |
parent | b87297fb405ef13cac375f202d114323b076a56d (diff) |
Merge branch 'linus' into x86/cpu
Diffstat (limited to 'net/iucv/af_iucv.c')
-rw-r--r-- | net/iucv/af_iucv.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c index 49e786535dc..b51c9187c34 100644 --- a/net/iucv/af_iucv.c +++ b/net/iucv/af_iucv.c @@ -172,6 +172,7 @@ static void iucv_sock_close(struct sock *sk) err = iucv_sock_wait_state(sk, IUCV_CLOSED, 0, timeo); } + case IUCV_CLOSING: /* fall through */ sk->sk_state = IUCV_CLOSED; sk->sk_state_change(sk); @@ -224,6 +225,8 @@ static struct sock *iucv_sock_alloc(struct socket *sock, int proto, gfp_t prio) spin_lock_init(&iucv_sk(sk)->message_q.lock); skb_queue_head_init(&iucv_sk(sk)->backlog_skb_q); iucv_sk(sk)->send_tag = 0; + iucv_sk(sk)->path = NULL; + memset(&iucv_sk(sk)->src_user_id , 0, 32); sk->sk_destruct = iucv_sock_destruct; sk->sk_sndtimeo = IUCV_CONN_TIMEOUT; @@ -811,6 +814,8 @@ static int iucv_sock_recvmsg(struct kiocb *iocb, struct socket *sock, target = sock_rcvlowat(sk, flags & MSG_WAITALL, len); + /* receive/dequeue next skb: + * the function understands MSG_PEEK and, thus, does not dequeue skb */ skb = skb_recv_datagram(sk, flags, noblock, &err); if (!skb) { if (sk->sk_shutdown & RCV_SHUTDOWN) @@ -858,9 +863,7 @@ static int iucv_sock_recvmsg(struct kiocb *iocb, struct socket *sock, iucv_process_message_q(sk); spin_unlock_bh(&iucv->message_q.lock); } - - } else - skb_queue_head(&sk->sk_receive_queue, skb); + } done: return err ? : copied; @@ -934,6 +937,9 @@ static int iucv_sock_shutdown(struct socket *sock, int how) lock_sock(sk); switch (sk->sk_state) { + case IUCV_DISCONN: + case IUCV_CLOSING: + case IUCV_SEVERED: case IUCV_CLOSED: err = -ENOTCONN; goto fail; @@ -1113,8 +1119,12 @@ static void iucv_callback_rx(struct iucv_path *path, struct iucv_message *msg) struct sock_msg_q *save_msg; int len; - if (sk->sk_shutdown & RCV_SHUTDOWN) + if (sk->sk_shutdown & RCV_SHUTDOWN) { + iucv_message_reject(path, msg); return; + } + + spin_lock(&iucv->message_q.lock); if (!list_empty(&iucv->message_q.list) || !skb_queue_empty(&iucv->backlog_skb_q)) @@ -1129,9 +1139,8 @@ static void iucv_callback_rx(struct iucv_path *path, struct iucv_message *msg) if (!skb) goto save_message; - spin_lock(&iucv->message_q.lock); iucv_process_message(sk, skb, path, msg); - spin_unlock(&iucv->message_q.lock); + goto out_unlock; return; @@ -1142,8 +1151,9 @@ save_message: save_msg->path = path; save_msg->msg = *msg; - spin_lock(&iucv->message_q.lock); list_add_tail(&save_msg->list, &iucv->message_q.list); + +out_unlock: spin_unlock(&iucv->message_q.lock); } |