diff options
Diffstat (limited to 'drivers/net/bonding/bond_alb.c')
| -rw-r--r-- | drivers/net/bonding/bond_alb.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c index 5d79f5e529e0..02872405d35d 100644 --- a/drivers/net/bonding/bond_alb.c +++ b/drivers/net/bonding/bond_alb.c @@ -1495,13 +1495,11 @@ void bond_alb_monitor(struct work_struct *work) struct list_head *iter; struct slave *slave; - if (!rtnl_trylock()) - goto re_arm; + read_lock(&bond->lock); if (!bond_has_slaves(bond)) { bond_info->tx_rebalance_counter = 0; bond_info->lp_counter = 0; - rtnl_unlock(); goto re_arm; } @@ -1550,6 +1548,16 @@ void bond_alb_monitor(struct work_struct *work) if (bond_info->primary_is_promisc && (++bond_info->rlb_promisc_timeout_counter >= RLB_PROMISC_TIMEOUT)) { + /* + * dev_set_promiscuity requires rtnl and + * nothing else. Avoid race with bond_close. + */ + read_unlock(&bond->lock); + if (!rtnl_trylock()) { + read_lock(&bond->lock); + goto re_arm; + } + bond_info->rlb_promisc_timeout_counter = 0; /* If the primary was set to promiscuous mode @@ -1558,6 +1566,9 @@ void bond_alb_monitor(struct work_struct *work) */ dev_set_promiscuity(bond->curr_active_slave->dev, -1); bond_info->primary_is_promisc = 0; + + rtnl_unlock(); + read_lock(&bond->lock); } if (bond_info->rlb_rebalance) { @@ -1580,9 +1591,10 @@ void bond_alb_monitor(struct work_struct *work) } } - rtnl_unlock(); re_arm: queue_delayed_work(bond->wq, &bond->alb_work, alb_delta_in_ticks); + + read_unlock(&bond->lock); } /* assumption: called before the slave is attached to the bond |