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authorAllan Stephens <allan.stephens@windriver.com>2010-08-17 11:00:08 +0000
committerDavid S. Miller <davem@davemloft.net>2010-08-17 17:31:54 -0700
commit7e3e5d0950559d1118dccbdff3c765fffcf04fd5 (patch)
tree9741b0dcae188721790b9f384e3b7d8d518951b5 /net/tipc
parentb02b69c8a403859ec72090742727e853d606a325 (diff)
tipc: Prevent crash when broadcast link cannot send to all nodes
Allow TIPC's broadcast link to continue operation when it is unable to send a message to all nodes in the cluster. Previously, the broadcast link attempted to put the broadcast pseudo-bearer into a blocked state; however, this caused a crash because the associated bearer structure is only partially initialized. Further investigation has revealed some conceptual problems with blocking the pseudo-bearer; consequently, this functionality has been disabled for the time being and the undelivered message is eventually resent by the broadcast link's existing message retransmission mechanism (if possible). Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc')
-rw-r--r--net/tipc/bcast.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index a008c668930..42b1737f0dc 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -609,11 +609,13 @@ static int tipc_bcbearer_send(struct sk_buff *buf,
bcbearer->remains = bcbearer->remains_new;
}
- /* Unable to reach all targets */
+ /*
+ * Unable to reach all targets (indicate success, since currently
+ * there isn't code in place to properly block & unblock the
+ * pseudo-bearer used by the broadcast link)
+ */
- bcbearer->bearer.publ.blocked = 1;
- bcl->stats.bearer_congs++;
- return 1;
+ return TIPC_OK;
}
/**