Commit 2f139a5d authored Mar 19, 2014 by Ursula Braun Committed by David S. Miller Mar 20, 2014

af_iucv: recvmsg problem for SOCK_STREAM sockets



Commit f9c41a62 introduced
a problem for SOCK_STREAM sockets, when only part of the
incoming iucv message is received by user space. In this
case the remaining data of the iucv message is lost.
This patch makes sure an incompletely received iucv message
is queued back to the receive queue.

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

parent 20248162

net/iucv/af_iucv.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1382,6 +1382,7 @@ static int iucv_sock_recvmsg(struct kiocb iocb, struct socket sock,
		if (sk->sk_type == SOCK_STREAM) {
		if (copied < rlen) {
		IUCV_SKB_CB(skb)->offset = offset + copied;
		skb_queue_head(&sk->sk_receive_queue, skb);
		goto done;
		}
		}

Admin message