diff options
| -rw-r--r-- | net/iucv/af_iucv.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c index 49e786535dc..6cf02b41ef9 100644 --- a/net/iucv/af_iucv.c +++ b/net/iucv/af_iucv.c @@ -54,6 +54,7 @@ static void iucv_callback_connack(struct iucv_path *, u8 ipuser[16]); static int iucv_callback_connreq(struct iucv_path *, u8 ipvmid[8], u8 ipuser[16]); static void iucv_callback_connrej(struct iucv_path *, u8 ipuser[16]); +static void iucv_callback_shutdown(struct iucv_path *, u8 ipuser[16]); static struct iucv_sock_list iucv_sk_list = { .lock = __RW_LOCK_UNLOCKED(iucv_sk_list.lock), @@ -65,7 +66,8 @@ static struct iucv_handler af_iucv_handler = { .path_complete = iucv_callback_connack, .path_severed = iucv_callback_connrej, .message_pending = iucv_callback_rx, - .message_complete = iucv_callback_txdone + .message_complete = iucv_callback_txdone, + .path_quiesced = iucv_callback_shutdown, }; static inline void high_nmcpy(unsigned char *dst, char *src) @@ -1196,6 +1198,21 @@ static void iucv_callback_connrej(struct iucv_path *path, u8 ipuser[16]) sk->sk_state_change(sk); } +/* called if the other communication side shuts down its RECV direction; + * in turn, the callback sets SEND_SHUTDOWN to disable sending of data. + */ +static void iucv_callback_shutdown(struct iucv_path *path, u8 ipuser[16]) +{ + struct sock *sk = path->private; + + bh_lock_sock(sk); + if (sk->sk_state != IUCV_CLOSED) { + sk->sk_shutdown |= SEND_SHUTDOWN; + sk->sk_state_change(sk); + } + bh_unlock_sock(sk); +} + static struct proto_ops iucv_sock_ops = { .family = PF_IUCV, .owner = THIS_MODULE, |