diff options
| -rw-r--r-- | include/linux/igmp.h | 8 | ||||
| -rw-r--r-- | net/bridge/br_multicast.c | 4 | ||||
| -rw-r--r-- | net/ipv4/igmp.c | 35 |
3 files changed, 33 insertions, 14 deletions
diff --git a/include/linux/igmp.h b/include/linux/igmp.h index 8b4348f69bc5..cc85f4524dbf 100644 --- a/include/linux/igmp.h +++ b/include/linux/igmp.h @@ -137,7 +137,13 @@ extern void ip_mc_up(struct in_device *); extern void ip_mc_down(struct in_device *); 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_dec_group(struct in_device *in_dev, __be32 addr, gfp_t gfp); +static inline void ip_mc_dec_group(struct in_device *in_dev, __be32 addr) +{ + return __ip_mc_dec_group(in_dev, addr, GFP_KERNEL); +} +extern void __ip_mc_inc_group(struct in_device *in_dev, __be32 addr, + gfp_t gfp); extern void ip_mc_inc_group(struct in_device *in_dev, __be32 addr); int ip_mc_check_igmp(struct sk_buff *skb); diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index 780757b7a82f..1fb885a33c66 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -1841,7 +1841,7 @@ static void br_ip4_multicast_join_snoopers(struct net_bridge *br) if (!in_dev) return; - ip_mc_inc_group(in_dev, htonl(INADDR_ALLSNOOPERS_GROUP)); + __ip_mc_inc_group(in_dev, htonl(INADDR_ALLSNOOPERS_GROUP), GFP_ATOMIC); in_dev_put(in_dev); } @@ -1872,7 +1872,7 @@ static void br_ip4_multicast_leave_snoopers(struct net_bridge *br) if (WARN_ON(!in_dev)) return; - ip_mc_dec_group(in_dev, htonl(INADDR_ALLSNOOPERS_GROUP)); + __ip_mc_dec_group(in_dev, htonl(INADDR_ALLSNOOPERS_GROUP), GFP_ATOMIC); in_dev_put(in_dev); } diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index a40e48ded10d..b448cf32296c 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -159,7 +159,8 @@ static int unsolicited_report_interval(struct in_device *in_dev) return interval_jiffies; } -static void igmpv3_add_delrec(struct in_device *in_dev, struct ip_mc_list *im); +static void igmpv3_add_delrec(struct in_device *in_dev, struct ip_mc_list *im, + gfp_t gfp); static void igmpv3_del_delrec(struct in_device *in_dev, struct ip_mc_list *im); static void igmpv3_clear_delrec(struct in_device *in_dev); static int sf_setstate(struct ip_mc_list *pmc); @@ -1145,7 +1146,8 @@ static void ip_mc_filter_del(struct in_device *in_dev, __be32 addr) /* * deleted ip_mc_list manipulation */ -static void igmpv3_add_delrec(struct in_device *in_dev, struct ip_mc_list *im) +static void igmpv3_add_delrec(struct in_device *in_dev, struct ip_mc_list *im, + gfp_t gfp) { struct ip_mc_list *pmc; struct net *net = dev_net(in_dev->dev); @@ -1156,7 +1158,7 @@ static void igmpv3_add_delrec(struct in_device *in_dev, struct ip_mc_list *im) * for deleted items allows change reports to use common code with * non-deleted or query-response MCA's. */ - pmc = kzalloc(sizeof(*pmc), GFP_KERNEL); + pmc = kzalloc(sizeof(*pmc), gfp); if (!pmc) return; spin_lock_init(&pmc->lock); @@ -1261,7 +1263,7 @@ static void igmpv3_clear_delrec(struct in_device *in_dev) } #endif -static void igmp_group_dropped(struct ip_mc_list *im) +static void __igmp_group_dropped(struct ip_mc_list *im, gfp_t gfp) { struct in_device *in_dev = im->interface; #ifdef CONFIG_IP_MULTICAST @@ -1292,13 +1294,18 @@ static void igmp_group_dropped(struct ip_mc_list *im) return; } /* IGMPv3 */ - igmpv3_add_delrec(in_dev, im); + igmpv3_add_delrec(in_dev, im, gfp); igmp_ifc_event(in_dev); } #endif } +static void igmp_group_dropped(struct ip_mc_list *im) +{ + __igmp_group_dropped(im, GFP_KERNEL); +} + static void igmp_group_added(struct ip_mc_list *im) { struct in_device *in_dev = im->interface; @@ -1400,8 +1407,8 @@ static void ip_mc_hash_remove(struct in_device *in_dev, /* * A socket has joined a multicast group on device dev. */ -static void __ip_mc_inc_group(struct in_device *in_dev, __be32 addr, - unsigned int mode) +static void ____ip_mc_inc_group(struct in_device *in_dev, __be32 addr, + unsigned int mode, gfp_t gfp) { struct ip_mc_list *im; @@ -1415,7 +1422,7 @@ static void __ip_mc_inc_group(struct in_device *in_dev, __be32 addr, } } - im = kzalloc(sizeof(*im), GFP_KERNEL); + im = kzalloc(sizeof(*im), gfp); if (!im) goto out; @@ -1448,6 +1455,12 @@ out: return; } +void __ip_mc_inc_group(struct in_device *in_dev, __be32 addr, gfp_t gfp) +{ + ____ip_mc_inc_group(in_dev, addr, MCAST_EXCLUDE, gfp); +} +EXPORT_SYMBOL(__ip_mc_inc_group); + void ip_mc_inc_group(struct in_device *in_dev, __be32 addr) { __ip_mc_inc_group(in_dev, addr, MCAST_EXCLUDE); @@ -1634,7 +1647,7 @@ static void ip_mc_rejoin_groups(struct in_device *in_dev) * A socket has left a multicast group on device dev */ -void ip_mc_dec_group(struct in_device *in_dev, __be32 addr) +void __ip_mc_dec_group(struct in_device *in_dev, __be32 addr, gfp_t gfp) { struct ip_mc_list *i; struct ip_mc_list __rcu **ip; @@ -1649,7 +1662,7 @@ void ip_mc_dec_group(struct in_device *in_dev, __be32 addr) ip_mc_hash_remove(in_dev, i); *ip = i->next_rcu; in_dev->mc_count--; - igmp_group_dropped(i); + __igmp_group_dropped(i, gfp); ip_mc_clear_src(i); if (!in_dev->dead) @@ -1662,7 +1675,7 @@ void ip_mc_dec_group(struct in_device *in_dev, __be32 addr) } } } -EXPORT_SYMBOL(ip_mc_dec_group); +EXPORT_SYMBOL(__ip_mc_dec_group); /* Device changing type */ |