diff options
| author | Aaron Conole <aconole@bytheb.org> | 2016-09-21 15:35:07 (GMT) |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2016-09-25 12:38:48 (GMT) |
| commit | e3b37f11e6e4e6b6f02cc762f182ce233d2c1c9d (patch) | |
| tree | 09f9f1a8b9e8e7e173e1059c5e251c19a9852df6 /include/net | |
| parent | 54f17bbc52f71e2d313721046627c383d6c5c7da (diff) | |
| download | linux-e3b37f11e6e4e6b6f02cc762f182ce233d2c1c9d.tar.xz | |
netfilter: replace list_head with single linked list
The netfilter hook list never uses the prev pointer, and so can be trimmed to
be a simple singly-linked list.
In addition to having a more light weight structure for hook traversal,
struct net becomes 5568 bytes (down from 6400) and struct net_device becomes
2176 bytes (down from 2240).
Signed-off-by: Aaron Conole <aconole@bytheb.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/netfilter/nf_queue.h | 3 | ||||
| -rw-r--r-- | include/net/netns/netfilter.h | 2 |
2 files changed, 2 insertions, 3 deletions
diff --git a/include/net/netfilter/nf_queue.h b/include/net/netfilter/nf_queue.h index 8fe85b9..2280cfe 100644 --- a/include/net/netfilter/nf_queue.h +++ b/include/net/netfilter/nf_queue.h @@ -11,7 +11,6 @@ struct nf_queue_entry { struct sk_buff *skb; unsigned int id; - struct nf_hook_ops *elem; struct nf_hook_state state; u16 size; /* sizeof(entry) + saved route keys */ @@ -25,7 +24,7 @@ struct nf_queue_handler { int (*outfn)(struct nf_queue_entry *entry, unsigned int queuenum); void (*nf_hook_drop)(struct net *net, - struct nf_hook_ops *ops); + const struct nf_hook_entry *hooks); }; void nf_register_queue_handler(struct net *net, const struct nf_queue_handler *qh); diff --git a/include/net/netns/netfilter.h b/include/net/netns/netfilter.h index 36d7235..58487b1 100644 --- a/include/net/netns/netfilter.h +++ b/include/net/netns/netfilter.h @@ -16,6 +16,6 @@ struct netns_nf { #ifdef CONFIG_SYSCTL struct ctl_table_header *nf_log_dir_header; #endif - struct list_head hooks[NFPROTO_NUMPROTO][NF_MAX_HOOKS]; + struct nf_hook_entry __rcu *hooks[NFPROTO_NUMPROTO][NF_MAX_HOOKS]; }; #endif |