af_iucv: accelerate close for HS transport

Closing an af_iucv socket may wait for confirmation of outstanding
send requests. This patch adds confirmation code for the new
HiperSockets transport.

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 0 deletions

diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index f4ad720ea618..32a5010b2940 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -2293,6 +2293,13 @@ static void afiucv_hs_callback_txnotify(struct sk_buff *skb,
         }
         spin_unlock_irqrestore(&list->lock, flags);
 
+        if (sk->sk_state == IUCV_CLOSING) {
+                if (skb_queue_empty(&iucv_sk(sk)->send_skb_q)) {
+                        sk->sk_state = IUCV_CLOSED;
+                        sk->sk_state_change(sk);
+                }
+        }
+
 out_unlock:
         bh_unlock_sock(sk);
 }