diff options
Diffstat (limited to 'drivers/net/bonding')
-rw-r--r-- | drivers/net/bonding/bond_main.c | 21 | ||||
-rw-r--r-- | drivers/net/bonding/bonding.h | 12 |
2 files changed, 12 insertions, 21 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index bdb68a6..d0ea760 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -171,7 +171,7 @@ MODULE_PARM_DESC(resend_igmp, "Number of IGMP membership reports to send on link /*----------------------------- Global variables ----------------------------*/ #ifdef CONFIG_NET_POLL_CONTROLLER -cpumask_var_t netpoll_block_tx; +atomic_t netpoll_block_tx = ATOMIC_INIT(0); #endif static const char * const version = @@ -878,8 +878,10 @@ static void __bond_resend_igmp_join_requests(struct net_device *dev) rcu_read_lock(); in_dev = __in_dev_get_rcu(dev); if (in_dev) { + read_lock(&in_dev->mc_list_lock); for (im = in_dev->mc_list; im; im = im->next) ip_mc_rejoin_group(im); + read_unlock(&in_dev->mc_list_lock); } rcu_read_unlock(); @@ -1574,7 +1576,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) /* If this is the first slave, then we need to set the master's hardware * address to be the same as the slave's. */ - if (bond->slave_cnt == 0) + if (is_zero_ether_addr(bond->dev->dev_addr)) memcpy(bond->dev->dev_addr, slave_dev->dev_addr, slave_dev->addr_len); @@ -5297,13 +5299,6 @@ static int __init bonding_init(void) if (res) goto out; -#ifdef CONFIG_NET_POLL_CONTROLLER - if (!alloc_cpumask_var(&netpoll_block_tx, GFP_KERNEL)) { - res = -ENOMEM; - goto out; - } -#endif - res = register_pernet_subsys(&bond_net_ops); if (res) goto out; @@ -5332,9 +5327,6 @@ err: rtnl_link_unregister(&bond_link_ops); err_link: unregister_pernet_subsys(&bond_net_ops); -#ifdef CONFIG_NET_POLL_CONTROLLER - free_cpumask_var(netpoll_block_tx); -#endif goto out; } @@ -5351,7 +5343,10 @@ static void __exit bonding_exit(void) unregister_pernet_subsys(&bond_net_ops); #ifdef CONFIG_NET_POLL_CONTROLLER - free_cpumask_var(netpoll_block_tx); + /* + * Make sure we don't have an imbalance on our netpoll blocking + */ + WARN_ON(atomic_read(&netpoll_block_tx)); #endif } diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h index 4eedb12..c2f08135 100644 --- a/drivers/net/bonding/bonding.h +++ b/drivers/net/bonding/bonding.h @@ -119,26 +119,22 @@ #ifdef CONFIG_NET_POLL_CONTROLLER -extern cpumask_var_t netpoll_block_tx; +extern atomic_t netpoll_block_tx; static inline void block_netpoll_tx(void) { - preempt_disable(); - BUG_ON(cpumask_test_and_set_cpu(smp_processor_id(), - netpoll_block_tx)); + atomic_inc(&netpoll_block_tx); } static inline void unblock_netpoll_tx(void) { - BUG_ON(!cpumask_test_and_clear_cpu(smp_processor_id(), - netpoll_block_tx)); - preempt_enable(); + atomic_dec(&netpoll_block_tx); } static inline int is_netpoll_tx_blocked(struct net_device *dev) { if (unlikely(dev->priv_flags & IFF_IN_NETPOLL)) - return cpumask_test_cpu(smp_processor_id(), netpoll_block_tx); + return atomic_read(&netpoll_block_tx); return 0; } #else |