Commit 10745cd5 authored Oct 24, 2011 by Allan Stephens Committed by Paul Gortmaker Dec 27, 2011

tipc: Flush unsent broadcast messages when contact with last node is lost

Adds code to release any unsent broadcast messages in the broadcast link
transmit queue if TIPC loses contact with its only neighboring node.
Previously, a broadcast link that was in the congested state would hold
on to the unsent messages, even though the messages were now undeliverable.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

parent 9157bafb

net/tipc/bcast.c

+11 −1

Original line number	Diff line number	Diff line
		@@ -252,7 +252,17 @@ void tipc_bclink_acknowledge(struct tipc_node *n_ptr, u32 acked)

		while (crs && less_eq(buf_seqno(crs), acked)) {
		next = crs->next;

		if (crs != bcl->next_out)
		bcbuf_decr_acks(crs);
		else if (bclink->bcast_nodes.count)
		break;
		else {
		bcbuf_set_acks(crs, 0);
		bcl->next_out = next;
		bclink_set_last_sent();
		}

		if (bcbuf_acks(crs) == 0) {
		bcl->first_out = next;
		bcl->out_queue_size--;