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authorMichal Kubeček <mkubecek@suse.cz>2012-11-22 06:48:39 +0400
committerDavid S. Miller <davem@davemloft.net>2012-11-28 20:28:45 +0400
commit4e591b93d5edb3c126a7257c6e29d978a82656d9 (patch)
tree41cc2640c7b40d59606139015d0859a4b5d6b712 /drivers/net/bonding
parent462dbc9101acd38e92eda93c0726857517a24bbd (diff)
downloadlinux-4e591b93d5edb3c126a7257c6e29d978a82656d9.tar.xz
bonding: in balance-rr mode, set curr_active_slave only if it is up
If all slaves of a balance-rr bond with ARP monitor are enslaved with down link state, bond keeps down state even after slaves go up. This is caused by bond_enslave() setting curr_active_slave to first slave not taking into account its link state. As bond_loadbalance_arp_mon() uses curr_active_slave to identify whether slave's down->up transition should update bond's link state, bond stays down even if slaves are up (until first slave goes from up to down at least once). Before commit f31c7937 "bonding: start slaves with link down for ARP monitor", this was masked by slaves always starting in UP state with ARP monitor (and MII monitor not relying on curr_active_slave being NULL if there is no slave up). Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/bonding')
-rw-r--r--drivers/net/bonding/bond_main.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 5f5b69f37d2e..c8bff3e83a59 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1838,7 +1838,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
* anyway (it holds no special properties of the bond device),
* so we can change it without calling change_active_interface()
*/
- if (!bond->curr_active_slave)
+ if (!bond->curr_active_slave && new_slave->link == BOND_LINK_UP)
bond->curr_active_slave = new_slave;
break;