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-rw-r--r--net/tipc/bcast.c16
-rw-r--r--net/tipc/bcast.h3
-rw-r--r--net/tipc/link.c2
3 files changed, 17 insertions, 4 deletions
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index b4d659df465f..a5eb7dbfa0c3 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -93,6 +93,7 @@ struct bcbearer {
* struct bclink - link used for broadcast messages
* @link: (non-standard) broadcast link structure
* @node: (non-standard) node structure representing b'cast link's peer node
+ * @retransmit_to: node that most recently requested a retransmit
*
* Handles sequence numbering, fragmentation, bundling, etc.
*/
@@ -100,6 +101,7 @@ struct bcbearer {
struct bclink {
struct link link;
struct tipc_node node;
+ struct tipc_node *retransmit_to;
};
@@ -184,6 +186,17 @@ static int bclink_ack_allowed(u32 n)
/**
+ * tipc_bclink_retransmit_to - get most recent node to request retransmission
+ *
+ * Called with bc_lock locked
+ */
+
+struct tipc_node *tipc_bclink_retransmit_to(void)
+{
+ return bclink->retransmit_to;
+}
+
+/**
* bclink_retransmit_pkt - retransmit broadcast packets
* @after: sequence number of last packet to *not* retransmit
* @to: sequence number of last packet to retransmit
@@ -444,10 +457,9 @@ void tipc_bclink_recv_pkt(struct sk_buff *buf)
tipc_node_unlock(node);
spin_lock_bh(&bc_lock);
bcl->stats.recv_nacks++;
- bcl->owner->next = node; /* remember requestor */
+ bclink->retransmit_to = node;
bclink_retransmit_pkt(msg_bcgap_after(msg),
msg_bcgap_to(msg));
- bcl->owner->next = NULL;
spin_unlock_bh(&bc_lock);
} else {
tipc_bclink_peek_nack(msg_destnode(msg),
diff --git a/net/tipc/bcast.h b/net/tipc/bcast.h
index 51f8c5326ce6..500c97f1c859 100644
--- a/net/tipc/bcast.h
+++ b/net/tipc/bcast.h
@@ -2,7 +2,7 @@
* net/tipc/bcast.h: Include file for TIPC broadcast code
*
* Copyright (c) 2003-2006, Ericsson AB
- * Copyright (c) 2005, Wind River Systems
+ * Copyright (c) 2005, 2010-2011, Wind River Systems
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -90,6 +90,7 @@ void tipc_port_list_free(struct port_list *pl_ptr);
int tipc_bclink_init(void);
void tipc_bclink_stop(void);
+struct tipc_node *tipc_bclink_retransmit_to(void);
void tipc_bclink_acknowledge(struct tipc_node *n_ptr, u32 acked);
int tipc_bclink_send_msg(struct sk_buff *buf);
void tipc_bclink_recv_pkt(struct sk_buff *buf);
diff --git a/net/tipc/link.c b/net/tipc/link.c
index d586265e54a4..0cb773b7ee21 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1441,7 +1441,7 @@ static void link_retransmit_failure(struct link *l_ptr, struct sk_buff *buf)
info("Outstanding acks: %lu\n",
(unsigned long) TIPC_SKB_CB(buf)->handle);
- n_ptr = l_ptr->owner->next;
+ n_ptr = tipc_bclink_retransmit_to();
tipc_node_lock(n_ptr);
tipc_addr_string_fill(addr_string, n_ptr->addr);