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bridge: Use rcu_barrier() instead of syncronize_net() on unload. 

When unloading modules that uses call_rcu() callbacks, then we must
use rcu_barrier().  This module uses syncronize_net() which is not
enough to be sure that all callback has been completed.

Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jesper Dangaard Brouer 2009-06-26 10:45:48 +00:00 committed by David S. Miller
parent 1f2ccd00f2
commit 473c22d759
1 changed files with 1 additions and 1 deletions
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net/bridge/br.c
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@ -93,7 +93,7 @@ static void __exit br_deinit(void)
unregister_pernet_subsys(&br_net_ops);
synchronize_net();
rcu_barrier(); /* Wait for completion of call_rcu()'s */
br_netfilter_fini();
#if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)