case BOND_MODE_TLB:
case BOND_MODE_ALB:
new_slave->state = BOND_STATE_ACTIVE;
- if ((!bond->curr_active_slave) &&
- (new_slave->link != BOND_LINK_DOWN)) {
- /* first slave or no active slave yet, and this link
- * is OK, so make this interface the active one
- */
- bond_change_active_slave(bond, new_slave);
- } else {
- bond_set_slave_inactive_flags(new_slave);
- }
+ bond_set_slave_inactive_flags(new_slave);
break;
default:
dprintk("This slave is always active in trunk mode\n");
bond_alb_deinit_slave(bond, slave);
}
- if (oldcurrent == slave)
+ if (oldcurrent == slave) {
+ /*
+ * Note that we hold RTNL over this sequence, so there
+ * 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->slave_cnt == 0) {
bond_set_carrier(bond);
*/
void bond_destroy(struct bonding *bond)
{
+ unregister_netdevice(bond->dev);
bond_deinit(bond->dev);
bond_destroy_sysfs_entry(bond);
- unregister_netdevice(bond->dev);
}
/*
return -EINVAL;
}
- write_lock_bh(&bond->lock);
+ read_lock(&bond->lock);
+ read_lock(&bond->curr_slave_lock);
old_active = bond->curr_active_slave;
+ read_unlock(&bond->curr_slave_lock);
+
new_active = bond_get_slave_by_dev(bond, slave_dev);
/*
* Changing to the current active: do nothing; return success.
*/
if (new_active && (new_active == old_active)) {
- write_unlock_bh(&bond->lock);
+ read_unlock(&bond->lock);
return 0;
}
(old_active) &&
(new_active->link == BOND_LINK_UP) &&
IS_UP(new_active->dev)) {
+ write_lock_bh(&bond->curr_slave_lock);
bond_change_active_slave(bond, new_active);
+ write_unlock_bh(&bond->curr_slave_lock);
} else {
res = -EINVAL;
}
- write_unlock_bh(&bond->lock);
+ read_unlock(&bond->lock);
return res;
}
info->bond_mode = bond->params.mode;
info->miimon = bond->params.miimon;
- read_lock_bh(&bond->lock);
+ read_lock(&bond->lock);
info->num_slaves = bond->slave_cnt;
- read_unlock_bh(&bond->lock);
+ read_unlock(&bond->lock);
return 0;
}
return -ENODEV;
}
- read_lock_bh(&bond->lock);
+ read_lock(&bond->lock);
bond_for_each_slave(bond, slave, i) {
if (i == (int)info->slave_id) {
}
}
- read_unlock_bh(&bond->lock);
+ read_unlock(&bond->lock);
if (found) {
strcpy(info->slave_name, slave->dev->name);
switch (slave->link) {
case BOND_LINK_UP: /* the link was up */
if (link_state == BMSR_LSTATUS) {
- /* link stays up, nothing more to do */
+ if (!oldcurrent) {
+ if (!have_locks)
+ return 1;
+ do_failover = 1;
+ }
break;
} else { /* link going down */
slave->link = BOND_LINK_FAIL;
} /* end of for */
if (do_failover) {
- write_lock(&bond->curr_slave_lock);
+ ASSERT_RTNL();
+
+ write_lock_bh(&bond->curr_slave_lock);
bond_select_active_slave(bond);
- write_unlock(&bond->curr_slave_lock);
+ write_unlock_bh(&bond->curr_slave_lock);
+
} else
bond_set_carrier(bond);
}
if (do_failover) {
- write_lock(&bond->curr_slave_lock);
+ rtnl_lock();
+ write_lock_bh(&bond->curr_slave_lock);
bond_select_active_slave(bond);
- write_unlock(&bond->curr_slave_lock);
+ write_unlock_bh(&bond->curr_slave_lock);
+ rtnl_unlock();
+
}
re_arm:
slave->link = BOND_LINK_UP;
- write_lock(&bond->curr_slave_lock);
+ rtnl_lock();
+
+ write_lock_bh(&bond->curr_slave_lock);
if ((!bond->curr_active_slave) &&
((jiffies - slave->dev->trans_start) <= delta_in_ticks)) {
slave->dev->name);
}
- write_unlock(&bond->curr_slave_lock);
+ write_unlock_bh(&bond->curr_slave_lock);
+ rtnl_unlock();
}
} else {
read_lock(&bond->curr_slave_lock);
bond->dev->name,
slave->dev->name);
- write_lock(&bond->curr_slave_lock);
+ rtnl_lock();
+ write_lock_bh(&bond->curr_slave_lock);
bond_select_active_slave(bond);
slave = bond->curr_active_slave;
- write_unlock(&bond->curr_slave_lock);
+ write_unlock_bh(&bond->curr_slave_lock);
+
+ rtnl_unlock();
bond->current_arp_slave = slave;
bond->primary_slave->dev->name);
/* primary is up so switch to it */
- write_lock(&bond->curr_slave_lock);
+ rtnl_lock();
+ write_lock_bh(&bond->curr_slave_lock);
bond_change_active_slave(bond, bond->primary_slave);
- write_unlock(&bond->curr_slave_lock);
+ write_unlock_bh(&bond->curr_slave_lock);
+
+ rtnl_unlock();
slave = bond->primary_slave;
slave->jiffies = jiffies;
/* make sure the bond won't be taken away */
read_lock(&dev_base_lock);
- read_lock_bh(&bond->lock);
+ read_lock(&bond->lock);
if (*pos == 0) {
return SEQ_START_TOKEN;
{
struct bonding *bond = seq->private;
- read_unlock_bh(&bond->lock);
+ read_unlock(&bond->lock);
read_unlock(&dev_base_lock);
}
if (mii->reg_num == 1) {
struct bonding *bond = bond_dev->priv;
mii->val_out = 0;
- read_lock_bh(&bond->lock);
+ read_lock(&bond->lock);
read_lock(&bond->curr_slave_lock);
if (netif_carrier_ok(bond->dev)) {
mii->val_out = BMSR_LSTATUS;
}
read_unlock(&bond->curr_slave_lock);
- read_unlock_bh(&bond->lock);
+ read_unlock(&bond->lock);
}
return 0;
bond_mc_list_destroy(bond);
/* Release the bonded slaves */
bond_release_all(bond_dev);
- bond_deinit(bond_dev);
unregister_netdevice(bond_dev);
+ bond_deinit(bond_dev);
}
#ifdef CONFIG_PROC_FS