diff options
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 8 | ||||
| -rw-r--r-- | include/linux/igmp.h | 2 | ||||
| -rw-r--r-- | net/ipv4/igmp.c | 32 |
3 files changed, 22 insertions, 20 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 518844852f06..e588b2e1c3b3 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -873,15 +873,11 @@ static void bond_mc_del(struct bonding *bond, void *addr) static void __bond_resend_igmp_join_requests(struct net_device *dev) { struct in_device *in_dev; - struct ip_mc_list *im; rcu_read_lock(); in_dev = __in_dev_get_rcu(dev); - if (in_dev) { - for (im = in_dev->mc_list; im; im = im->next) - ip_mc_rejoin_group(im); - } - + if (in_dev) + ip_mc_rejoin_groups(in_dev); rcu_read_unlock(); } diff --git a/include/linux/igmp.h b/include/linux/igmp.h index 7d164670f264..c4987f265109 100644 --- a/include/linux/igmp.h +++ b/include/linux/igmp.h @@ -238,7 +238,7 @@ extern void ip_mc_unmap(struct in_device *); extern void ip_mc_remap(struct in_device *); extern void ip_mc_dec_group(struct in_device *in_dev, __be32 addr); extern void ip_mc_inc_group(struct in_device *in_dev, __be32 addr); -extern void ip_mc_rejoin_group(struct ip_mc_list *im); +extern void ip_mc_rejoin_groups(struct in_device *in_dev); #endif #endif diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index afb1e82a59f9..50f6bc1a002a 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -1267,26 +1267,32 @@ EXPORT_SYMBOL(ip_mc_inc_group); /* * Resend IGMP JOIN report; used for bonding. + * Called with rcu_read_lock() */ -void ip_mc_rejoin_group(struct ip_mc_list *im) +void ip_mc_rejoin_groups(struct in_device *in_dev) { #ifdef CONFIG_IP_MULTICAST - struct in_device *in_dev = im->interface; + struct ip_mc_list *im; + int type; - if (im->multiaddr == IGMP_ALL_HOSTS) - return; + for_each_pmc_rcu(in_dev, im) { + if (im->multiaddr == IGMP_ALL_HOSTS) + continue; - /* a failover is happening and switches - * must be notified immediately */ - if (IGMP_V1_SEEN(in_dev)) - igmp_send_report(in_dev, im, IGMP_HOST_MEMBERSHIP_REPORT); - else if (IGMP_V2_SEEN(in_dev)) - igmp_send_report(in_dev, im, IGMPV2_HOST_MEMBERSHIP_REPORT); - else - igmp_send_report(in_dev, im, IGMPV3_HOST_MEMBERSHIP_REPORT); + /* a failover is happening and switches + * must be notified immediately + */ + if (IGMP_V1_SEEN(in_dev)) + type = IGMP_HOST_MEMBERSHIP_REPORT; + else if (IGMP_V2_SEEN(in_dev)) + type = IGMPV2_HOST_MEMBERSHIP_REPORT; + else + type = IGMPV3_HOST_MEMBERSHIP_REPORT; + igmp_send_report(in_dev, im, type); + } #endif } -EXPORT_SYMBOL(ip_mc_rejoin_group); +EXPORT_SYMBOL(ip_mc_rejoin_groups); /* * A socket has left a multicast group on device dev |