Stephen Hemminger wrote:
--- a/net/ipv4/netfilter/ip_tables.c 2009-01-29 11:09:20.720069979 -0800
+++ b/net/ipv4/netfilter/ip_tables.c 2009-01-29 11:10:49.827070289 -0800
@@ -347,9 +347,9 @@ ipt_do_table(struct sk_buff *skb,
mtpar.family = tgpar.family = NFPROTO_IPV4;
tgpar.hooknum = hook;
- read_lock_bh(&table->lock);
+ rcu_read_lock_bh();
IP_NF_ASSERT(table->valid_hooks & (1 << hook));
- private = table->private;
+ private = rcu_dereference(table->private);
table_base = (void *)private->entries[smp_processor_id()];
e = get_entry(table_base, private->hook_entry[hook]);
I think this doesn't actually need the _bh rcu_read_lock() variant
since updates are never done in softirq context.
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