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authorAllan Stephens <allan.stephens@windriver.com>2012-04-18 09:12:09 -0400
committerPaul Gortmaker <paul.gortmaker@windriver.com>2012-04-19 15:46:46 -0400
commit974a5a864bf959b7f3412a31ee8ce001c6628451 (patch)
tree5f5c99f05f5dda3b6d4c384c1420700ab7d580ff
parentf0712e86b75f4839773abbc01d5baa7e36e378c2 (diff)
download96b-common-974a5a864bf959b7f3412a31ee8ce001c6628451.tar.gz
tipc: take lock while updating node network address
The routine that changes the node's network address now takes TIPC's network lock in write mode while the main address variable and associated data structures are being changed; this is needed to ensure that the link subsystem won't attempt to send a message off-node until the sending port's message header template has been updated with the node's new network address. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
-rw-r--r--net/tipc/net.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/tipc/net.c b/net/tipc/net.c
index d4531b07076c..5fab4ff24a94 100644
--- a/net/tipc/net.c
+++ b/net/tipc/net.c
@@ -178,11 +178,12 @@ int tipc_net_start(u32 addr)
tipc_subscr_stop();
tipc_cfg_stop();
+ write_lock_bh(&tipc_net_lock);
tipc_own_addr = addr;
tipc_named_reinit();
tipc_port_reinit();
-
tipc_bclink_init();
+ write_unlock_bh(&tipc_net_lock);
tipc_k_signal((Handler)tipc_subscr_start, 0);
tipc_k_signal((Handler)tipc_cfg_init, 0);