From df200969b1627e8f1cda7ce8c0707863f91bb81b Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Thu, 31 Jan 2008 04:05:34 -0800 Subject: [PATCH] [NETFILTER]: netns: put table module on netns stop When number of entries exceeds number of initial entries, foo-tables code will pin table module. But during table unregister on netns stop, that additional pin was forgotten. Signed-off-by: Alexey Dobriyan Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/ipv4/netfilter/arp_tables.c | 3 +++ net/ipv4/netfilter/ip_tables.c | 3 +++ net/ipv6/netfilter/ip6_tables.c | 3 +++ 3 files changed, 9 insertions(+) diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c index ec64b67..3608675 100644 --- a/net/ipv4/netfilter/arp_tables.c +++ b/net/ipv4/netfilter/arp_tables.c @@ -1773,6 +1773,7 @@ void arpt_unregister_table(struct arpt_table *table) { struct xt_table_info *private; void *loc_cpu_entry; + struct module *table_owner = table->me; private = xt_unregister_table(table); @@ -1780,6 +1781,8 @@ void arpt_unregister_table(struct arpt_table *table) loc_cpu_entry = private->entries[raw_smp_processor_id()]; ARPT_ENTRY_ITERATE(loc_cpu_entry, private->size, cleanup_entry, NULL); + if (private->number > private->initial_entries) + module_put(table_owner); xt_free_table_info(private); } diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c index c1b80f4..427bc9b 100644 --- a/net/ipv4/netfilter/ip_tables.c +++ b/net/ipv4/netfilter/ip_tables.c @@ -2095,12 +2095,15 @@ void ipt_unregister_table(struct xt_table *table) { struct xt_table_info *private; void *loc_cpu_entry; + struct module *table_owner = table->me; private = xt_unregister_table(table); /* Decrease module usage counts and free resources */ loc_cpu_entry = private->entries[raw_smp_processor_id()]; IPT_ENTRY_ITERATE(loc_cpu_entry, private->size, cleanup_entry, NULL); + if (private->number > private->initial_entries) + module_put(table_owner); xt_free_table_info(private); } diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c index 2453dfd..6fabb73 100644 --- a/net/ipv6/netfilter/ip6_tables.c +++ b/net/ipv6/netfilter/ip6_tables.c @@ -2121,12 +2121,15 @@ void ip6t_unregister_table(struct xt_table *table) { struct xt_table_info *private; void *loc_cpu_entry; + struct module *table_owner = table->me; private = xt_unregister_table(table); /* Decrease module usage counts and free resources */ loc_cpu_entry = private->entries[raw_smp_processor_id()]; IP6T_ENTRY_ITERATE(loc_cpu_entry, private->size, cleanup_entry, NULL); + if (private->number > private->initial_entries) + module_put(table_owner); xt_free_table_info(private); } -- 2.7.4