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-rw-r--r--drivers/net/bonding/bond_alb.c20
1 files changed, 4 insertions, 16 deletions
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 02872405d35d..5d79f5e529e0 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -1495,11 +1495,13 @@ void bond_alb_monitor(struct work_struct *work)
1495 struct list_head *iter; 1495 struct list_head *iter;
1496 struct slave *slave; 1496 struct slave *slave;
1497 1497
1498 read_lock(&bond->lock); 1498 if (!rtnl_trylock())
1499 goto re_arm;
1499 1500
1500 if (!bond_has_slaves(bond)) { 1501 if (!bond_has_slaves(bond)) {
1501 bond_info->tx_rebalance_counter = 0; 1502 bond_info->tx_rebalance_counter = 0;
1502 bond_info->lp_counter = 0; 1503 bond_info->lp_counter = 0;
1504 rtnl_unlock();
1503 goto re_arm; 1505 goto re_arm;
1504 } 1506 }
1505 1507
@@ -1548,16 +1550,6 @@ void bond_alb_monitor(struct work_struct *work)
1548 if (bond_info->primary_is_promisc && 1550 if (bond_info->primary_is_promisc &&
1549 (++bond_info->rlb_promisc_timeout_counter >= RLB_PROMISC_TIMEOUT)) { 1551 (++bond_info->rlb_promisc_timeout_counter >= RLB_PROMISC_TIMEOUT)) {
1550 1552
1551 /*
1552 * dev_set_promiscuity requires rtnl and
1553 * nothing else. Avoid race with bond_close.
1554 */
1555 read_unlock(&bond->lock);
1556 if (!rtnl_trylock()) {
1557 read_lock(&bond->lock);
1558 goto re_arm;
1559 }
1560
1561 bond_info->rlb_promisc_timeout_counter = 0; 1553 bond_info->rlb_promisc_timeout_counter = 0;
1562 1554
1563 /* If the primary was set to promiscuous mode 1555 /* If the primary was set to promiscuous mode
@@ -1566,9 +1558,6 @@ void bond_alb_monitor(struct work_struct *work)
1566 */ 1558 */
1567 dev_set_promiscuity(bond->curr_active_slave->dev, -1); 1559 dev_set_promiscuity(bond->curr_active_slave->dev, -1);
1568 bond_info->primary_is_promisc = 0; 1560 bond_info->primary_is_promisc = 0;
1569
1570 rtnl_unlock();
1571 read_lock(&bond->lock);
1572 } 1561 }
1573 1562
1574 if (bond_info->rlb_rebalance) { 1563 if (bond_info->rlb_rebalance) {
@@ -1591,10 +1580,9 @@ void bond_alb_monitor(struct work_struct *work)
1591 } 1580 }
1592 } 1581 }
1593 1582
1583 rtnl_unlock();
1594re_arm: 1584re_arm:
1595 queue_delayed_work(bond->wq, &bond->alb_work, alb_delta_in_ticks); 1585 queue_delayed_work(bond->wq, &bond->alb_work, alb_delta_in_ticks);
1596
1597 read_unlock(&bond->lock);
1598} 1586}
1599 1587
1600/* assumption: called before the slave is attached to the bond 1588/* assumption: called before the slave is attached to the bond