diff options
| author | WANG Cong <xiyou.wangcong@gmail.com> | 2016-07-25 16:09:41 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-07-25 21:49:19 -0700 |
| commit | a85a970af265f156740977168b542234511b28a8 (patch) | |
| tree | 19866c37883917b1ec6964fcbae76335f9de0139 /net/sched/act_skbedit.c | |
| parent | b93dd49c1a35884864027abd707889b795637f7a (diff) | |
net_sched: move tc_action into tcf_common
struct tc_action is confusing, currently we use it for two purposes:
1) Pass in arguments and carry out results from helper functions
2) A generic representation for tc actions
The first one is error-prone, since we need to make sure we don't
miss anything. This patch aims to get rid of this use, by moving
tc_action into tcf_common, so that they are allocated together
in hashtable and can be cast'ed easily.
And together with the following patch, we could really make
tc_action a generic representation for all tc actions and each
type of action can inherit from it.
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/act_skbedit.c')
| -rw-r--r-- | net/sched/act_skbedit.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/net/sched/act_skbedit.c b/net/sched/act_skbedit.c index 8e573c0f8742..a133dcb82132 100644 --- a/net/sched/act_skbedit.c +++ b/net/sched/act_skbedit.c @@ -30,11 +30,12 @@ #define SKBEDIT_TAB_MASK 15 static int skbedit_net_id; +static struct tc_action_ops act_skbedit_ops; static int tcf_skbedit(struct sk_buff *skb, const struct tc_action *a, struct tcf_result *res) { - struct tcf_skbedit *d = a->priv; + struct tcf_skbedit *d = to_skbedit(a); spin_lock(&d->tcf_lock); tcf_lastuse_update(&d->tcf_tm); @@ -63,7 +64,7 @@ static const struct nla_policy skbedit_policy[TCA_SKBEDIT_MAX + 1] = { }; static int tcf_skbedit_init(struct net *net, struct nlattr *nla, - struct nlattr *est, struct tc_action *a, + struct nlattr *est, struct tc_action **a, int ovr, int bind) { struct tc_action_net *tn = net_generic(net, skbedit_net_id); @@ -114,21 +115,21 @@ static int tcf_skbedit_init(struct net *net, struct nlattr *nla, return 0; if (!flags) { - tcf_hash_release(a, bind); + tcf_hash_release(*a, bind); return -EINVAL; } if (!exists) { ret = tcf_hash_create(tn, parm->index, est, a, - sizeof(*d), bind, false); + &act_skbedit_ops, bind, false); if (ret) return ret; - d = to_skbedit(a); + d = to_skbedit(*a); ret = ACT_P_CREATED; } else { - d = to_skbedit(a); - tcf_hash_release(a, bind); + d = to_skbedit(*a); + tcf_hash_release(*a, bind); if (!ovr) return -EEXIST; } @@ -150,7 +151,7 @@ static int tcf_skbedit_init(struct net *net, struct nlattr *nla, spin_unlock_bh(&d->tcf_lock); if (ret == ACT_P_CREATED) - tcf_hash_insert(tn, a); + tcf_hash_insert(tn, *a); return ret; } @@ -158,7 +159,7 @@ static int tcf_skbedit_dump(struct sk_buff *skb, struct tc_action *a, int bind, int ref) { unsigned char *b = skb_tail_pointer(skb); - struct tcf_skbedit *d = a->priv; + struct tcf_skbedit *d = to_skbedit(a); struct tc_skbedit opt = { .index = d->tcf_index, .refcnt = d->tcf_refcnt - ref, @@ -194,14 +195,14 @@ nla_put_failure: static int tcf_skbedit_walker(struct net *net, struct sk_buff *skb, struct netlink_callback *cb, int type, - struct tc_action *a) + const struct tc_action_ops *ops) { struct tc_action_net *tn = net_generic(net, skbedit_net_id); - return tcf_generic_walker(tn, skb, cb, type, a); + return tcf_generic_walker(tn, skb, cb, type, ops); } -static int tcf_skbedit_search(struct net *net, struct tc_action *a, u32 index) +static int tcf_skbedit_search(struct net *net, struct tc_action **a, u32 index) { struct tc_action_net *tn = net_generic(net, skbedit_net_id); @@ -217,6 +218,7 @@ static struct tc_action_ops act_skbedit_ops = { .init = tcf_skbedit_init, .walk = tcf_skbedit_walker, .lookup = tcf_skbedit_search, + .size = sizeof(struct tcf_skbedit), }; static __net_init int skbedit_init_net(struct net *net) |