From 974a5a864bf959b7f3412a31ee8ce001c6628451 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Wed, 18 Apr 2012 09:12:09 -0400 Subject: [PATCH] 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 Signed-off-by: Paul Gortmaker --- net/tipc/net.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/tipc/net.c b/net/tipc/net.c index d4531b07076..5fab4ff24a9 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); -- 2.20.1