When a bonding netdevice is admin-ed down it looses the slaves attributes (set via ifenslave). This is not consistent with other behavior of netdevices (example a qdisc attached to a netdevice doesnt disappear or an attached IP address etc). The included patch fixes this. Ive tested by ifenslaving, downing the bond, checking /proc and making sure it still has the slaves, up-ing the bond and making sure things continue to work.
Jay/Bonding folks if you are ok with it, just ACK it or include it in your tree etc. Otherwise we can discuss. This is against linus tree. cheers, jamal
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 8b95123..df319be 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -3420,7 +3420,6 @@ static int bond_close(struct net_device write_lock_bh(&bond->lock); - bond_mc_list_destroy(bond); /* signal timers not to re-arm */ bond->kill_timers = 1; @@ -3451,8 +3450,6 @@ static int bond_close(struct net_device break; } - /* Release the bonded slaves */ - bond_release_all(bond_dev); if ((bond->params.mode == BOND_MODE_TLB) || (bond->params.mode == BOND_MODE_ALB)) { @@ -4237,6 +4234,9 @@ static void bond_free_all(void) list_for_each_entry_safe(bond, nxt, &bond_dev_list, bond_list) { struct net_device *bond_dev = bond->dev; + bond_mc_list_destroy(bond); + /* Release the bonded slaves */ + bond_release_all(bond_dev); unregister_netdevice(bond_dev); bond_deinit(bond_dev); }