diff options
Diffstat (limited to 'net/netfilter/core.c')
| -rw-r--r-- | net/netfilter/core.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/net/netfilter/core.c b/net/netfilter/core.c index afca6c78948..4aa0f4b19bd 100644 --- a/net/netfilter/core.c +++ b/net/netfilter/core.c @@ -54,6 +54,12 @@ EXPORT_SYMBOL_GPL(nf_unregister_afinfo); struct list_head nf_hooks[NFPROTO_NUMPROTO][NF_MAX_HOOKS] __read_mostly; EXPORT_SYMBOL(nf_hooks); + +#if defined(CONFIG_JUMP_LABEL) +struct jump_label_key nf_hooks_needed[NFPROTO_NUMPROTO][NF_MAX_HOOKS]; +EXPORT_SYMBOL(nf_hooks_needed); +#endif + static DEFINE_MUTEX(nf_hook_mutex); int nf_register_hook(struct nf_hook_ops *reg) @@ -70,6 +76,9 @@ int nf_register_hook(struct nf_hook_ops *reg) } list_add_rcu(®->list, elem->list.prev); mutex_unlock(&nf_hook_mutex); +#if defined(CONFIG_JUMP_LABEL) + jump_label_inc(&nf_hooks_needed[reg->pf][reg->hooknum]); +#endif return 0; } EXPORT_SYMBOL(nf_register_hook); @@ -79,7 +88,9 @@ void nf_unregister_hook(struct nf_hook_ops *reg) mutex_lock(&nf_hook_mutex); list_del_rcu(®->list); mutex_unlock(&nf_hook_mutex); - +#if defined(CONFIG_JUMP_LABEL) + jump_label_dec(&nf_hooks_needed[reg->pf][reg->hooknum]); +#endif synchronize_net(); } EXPORT_SYMBOL(nf_unregister_hook); |