diff options
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 27 |
1 files changed, 6 insertions, 21 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index bad1bf949546..1b1dd01fbf72 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1589,11 +1589,9 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) bond_set_carrier(bond); if (USES_PRIMARY(bond->params.mode)) { - read_lock(&bond->lock); write_lock_bh(&bond->curr_slave_lock); bond_select_active_slave(bond); write_unlock_bh(&bond->curr_slave_lock); - read_unlock(&bond->lock); } pr_info("%s: enslaving %s as a%s interface with a%s link.\n", @@ -1613,19 +1611,13 @@ err_detach: bond_hw_addr_flush(bond_dev, slave_dev); vlan_vids_del_by_dev(slave_dev, bond_dev); - write_lock_bh(&bond->lock); if (bond->primary_slave == new_slave) bond->primary_slave = NULL; if (bond->curr_active_slave == new_slave) { - bond_change_active_slave(bond, NULL); - write_unlock_bh(&bond->lock); - read_lock(&bond->lock); write_lock_bh(&bond->curr_slave_lock); + bond_change_active_slave(bond, NULL); bond_select_active_slave(bond); write_unlock_bh(&bond->curr_slave_lock); - read_unlock(&bond->lock); - } else { - write_unlock_bh(&bond->lock); } slave_disable_netpoll(new_slave); @@ -1690,20 +1682,16 @@ static int __bond_release_one(struct net_device *bond_dev, } block_netpoll_tx(); - write_lock_bh(&bond->lock); slave = bond_get_slave_by_dev(bond, slave_dev); if (!slave) { /* not a slave of this bond */ pr_info("%s: %s not enslaved\n", bond_dev->name, slave_dev->name); - write_unlock_bh(&bond->lock); unblock_netpoll_tx(); return -EINVAL; } - write_unlock_bh(&bond->lock); - /* release the slave from its bond */ bond->slave_cnt--; @@ -1721,6 +1709,7 @@ static int __bond_release_one(struct net_device *bond_dev, */ bond_3ad_unbind_slave(slave); } + write_unlock_bh(&bond->lock); pr_info("%s: releasing %s interface %s\n", bond_dev->name, @@ -1743,8 +1732,11 @@ static int __bond_release_one(struct net_device *bond_dev, if (bond->primary_slave == slave) bond->primary_slave = NULL; - if (oldcurrent == slave) + if (oldcurrent == slave) { + write_lock_bh(&bond->curr_slave_lock); bond_change_active_slave(bond, NULL); + write_unlock_bh(&bond->curr_slave_lock); + } if (bond_is_lb(bond)) { /* Must be called only after the slave has been @@ -1752,9 +1744,7 @@ static int __bond_release_one(struct net_device *bond_dev, * has been cleared (if our_slave == old_current), * but before a new active slave is selected. */ - write_unlock_bh(&bond->lock); bond_alb_deinit_slave(bond, slave); - write_lock_bh(&bond->lock); } if (all) { @@ -1765,15 +1755,11 @@ static int __bond_release_one(struct net_device *bond_dev, * is no concern that another slave add/remove event * will interfere. */ - write_unlock_bh(&bond->lock); - read_lock(&bond->lock); write_lock_bh(&bond->curr_slave_lock); bond_select_active_slave(bond); write_unlock_bh(&bond->curr_slave_lock); - read_unlock(&bond->lock); - write_lock_bh(&bond->lock); } if (!bond_has_slaves(bond)) { @@ -1788,7 +1774,6 @@ static int __bond_release_one(struct net_device *bond_dev, } } - write_unlock_bh(&bond->lock); unblock_netpoll_tx(); synchronize_rcu(); |