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netfilter: x_tables: move hook state into xt_action_param structure

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Place pointer to hook state in xt_action_param structure instead of
copying the fields that we need. After this change xt_action_param fits
into one cacheline.

This patch also adds a set of new wrapper functions to fetch relevant
hook state structure fields.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso
2016-11-03 10:56:21 +01:00
parent 06fd3a392b
commit 613dbd9572
46 changed files with 196 additions and 169 deletions
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12
net/sched/act_ipt.c
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@@ -213,6 +213,12 @@ static int tcf_ipt(struct sk_buff *skb, const struct tc_action *a,
int ret = 0, result = 0;
struct tcf_ipt *ipt = to_ipt(a);
struct xt_action_param par;
struct nf_hook_state state = {
.net = dev_net(skb->dev),
.in = skb->dev,
.hook = ipt->tcfi_hook,
.pf = NFPROTO_IPV4,
};
if (skb_unclone(skb, GFP_ATOMIC))
return TC_ACT_UNSPEC;
@@ -226,13 +232,9 @@ static int tcf_ipt(struct sk_buff *skb, const struct tc_action *a,
* worry later - danger - this API seems to have changed
* from earlier kernels
*/
par.net = dev_net(skb->dev);
par.in = skb->dev;
par.out = NULL;
par.hooknum = ipt->tcfi_hook;
par.state = &state;
par.target = ipt->tcfi_t->u.kernel.target;
par.targinfo = ipt->tcfi_t->data;
par.family = NFPROTO_IPV4;
ret = par.target->target(skb, &par);
switch (ret) {