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bonding: Manage /proc/net/bonding/ entries from the netdev events 

It was recently reported that moving a bonding device between network
namespaces causes warnings from /proc.  It turns out after the move we
were trying to add and to remove the /proc/net/bonding entries from the
wrong network namespace.

Move the bonding /proc registration code into the NETDEV_REGISTER and
NETDEV_UNREGISTER events where the proc registration and unregistration
will always happen at the right time.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric W. Biederman 2012-07-09 10:51:45 +00:00 committed by David S. Miller
parent 684901a6df
commit a64d49c3dd
1 changed files with 6 additions and 3 deletions
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9
drivers/net/bonding/bond_main.c
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@ -3227,6 +3227,12 @@ static int bond_master_netdev_event(unsigned long event,
switch (event) {
case NETDEV_CHANGENAME:
return bond_event_changename(event_bond);
case NETDEV_UNREGISTER:
bond_remove_proc_entry(event_bond);
break;
case NETDEV_REGISTER:
bond_create_proc_entry(event_bond);
break;
default:
break;
}
@ -4411,8 +4417,6 @@ static void bond_uninit(struct net_device *bond_dev)
bond_work_cancel_all(bond);
bond_remove_proc_entry(bond);
bond_debug_unregister(bond);
__hw_addr_flush(&bond->mc_list);
@ -4814,7 +4818,6 @@ static int bond_init(struct net_device *bond_dev)
bond_set_lockdep_class(bond_dev);
bond_create_proc_entry(bond);
list_add_tail(&bond->bond_list, &bn->dev_list);
bond_prepare_sysfs_group(bond);