From 10745cd5990542447268f60078133df8b1ee960b Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Mon, 24 Oct 2011 14:59:20 -0400 Subject: [PATCH] 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 Signed-off-by: Paul Gortmaker --- net/tipc/bcast.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c index dd990b081435..4609819ea807 100644 --- a/net/tipc/bcast.c +++ b/net/tipc/bcast.c @@ -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; - bcbuf_decr_acks(crs); + + 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--; -- 2.20.1