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tipc: take lock while updating node network address

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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>
This commit is contained in:
Allan Stephens 2012-04-18 09:12:09 -04:00 committed by Paul Gortmaker
parent f0712e86b7
commit 974a5a864b
1 changed files with 2 additions and 1 deletions
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3
net/tipc/net.c
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@ -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);