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Message-ID: <52FB6C61.3040302@mojatatu.com>
Date: Wed, 12 Feb 2014 07:43:13 -0500
From: Jamal Hadi Salim <jhs@...atatu.com>
To: Cong Wang <xiyou.wangcong@...il.com>, netdev@...r.kernel.org
CC: "David S. Miller" <davem@...emloft.net>
Subject: Re: [Patch net-next v3 1/5] net_sched: act: hide struct tcf_common
from API
On 02/11/14 20:07, Cong Wang wrote:
> Now we can totally hide it from modules. tcf_hash_*() API's
> will operate on struct tc_action, modules don't need to care about
> the details.
>
> Cc: Jamal Hadi Salim <jhs@...atatu.com>
> Cc: David S. Miller <davem@...emloft.net>
> Signed-off-by: Cong Wang <xiyou.wangcong@...il.com>
Signed-off-by: Jamal Hadi Salim <jhs@...atatu.com>
> ---
> include/net/act_api.h | 16 +++++++--------
> include/net/tc_act/tc_csum.h | 4 ++--
> include/net/tc_act/tc_defact.h | 4 ++--
> include/net/tc_act/tc_gact.h | 4 ++--
> include/net/tc_act/tc_ipt.h | 4 ++--
> include/net/tc_act/tc_mirred.h | 4 ++--
> include/net/tc_act/tc_nat.h | 4 ++--
> include/net/tc_act/tc_pedit.h | 4 ++--
> include/net/tc_act/tc_skbedit.h | 4 ++--
> net/sched/act_api.c | 43 ++++++++++++++++++++++++++++-------------
> net/sched/act_csum.c | 24 ++++++++---------------
> net/sched/act_gact.c | 27 ++++++++------------------
> net/sched/act_ipt.c | 39 ++++++++++++++-----------------------
> net/sched/act_mirred.c | 32 +++++++++++-------------------
> net/sched/act_nat.c | 25 ++++++++----------------
> net/sched/act_pedit.c | 25 ++++++++++--------------
> net/sched/act_police.c | 10 +---------
> net/sched/act_simple.c | 39 +++++++++++++------------------------
> net/sched/act_skbedit.c | 29 +++++++++------------------
> 19 files changed, 135 insertions(+), 206 deletions(-)
>
> diff --git a/include/net/act_api.h b/include/net/act_api.h
> index 788d837..24ae910 100644
> --- a/include/net/act_api.h
> +++ b/include/net/act_api.h
> @@ -98,16 +98,14 @@ struct tc_action_ops {
> };
>
> int tcf_hash_search(struct tc_action *a, u32 index);
> -void tcf_hash_destroy(struct tcf_common *p, struct tcf_hashinfo *hinfo);
> -int tcf_hash_release(struct tcf_common *p, int bind,
> - struct tcf_hashinfo *hinfo);
> +void tcf_hash_destroy(struct tc_action *a);
> +int tcf_hash_release(struct tc_action *a, int bind);
> u32 tcf_hash_new_index(struct tcf_hashinfo *hinfo);
> -struct tcf_common *tcf_hash_check(u32 index, struct tc_action *a,
> - int bind);
> -struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est,
> - struct tc_action *a, int size,
> - int bind);
> -void tcf_hash_insert(struct tcf_common *p, struct tcf_hashinfo *hinfo);
> +int tcf_hash_check(u32 index, struct tc_action *a, int bind);
> +int tcf_hash_create(u32 index, struct nlattr *est, struct tc_action *a,
> + int size, int bind);
> +void tcf_hash_cleanup(struct tc_action *a, struct nlattr *est);
> +void tcf_hash_insert(struct tc_action *a);
>
> int tcf_register_action(struct tc_action_ops *a);
> int tcf_unregister_action(struct tc_action_ops *a);
> diff --git a/include/net/tc_act/tc_csum.h b/include/net/tc_act/tc_csum.h
> index 9e8710b..fa8f5fa 100644
> --- a/include/net/tc_act/tc_csum.h
> +++ b/include/net/tc_act/tc_csum.h
> @@ -9,7 +9,7 @@ struct tcf_csum {
>
> u32 update_flags;
> };
> -#define to_tcf_csum(pc) \
> - container_of(pc,struct tcf_csum,common)
> +#define to_tcf_csum(a) \
> + container_of(a->priv,struct tcf_csum,common)
>
> #endif /* __NET_TC_CSUM_H */
> diff --git a/include/net/tc_act/tc_defact.h b/include/net/tc_act/tc_defact.h
> index 65f024b..9763dcb 100644
> --- a/include/net/tc_act/tc_defact.h
> +++ b/include/net/tc_act/tc_defact.h
> @@ -8,7 +8,7 @@ struct tcf_defact {
> u32 tcfd_datalen;
> void *tcfd_defdata;
> };
> -#define to_defact(pc) \
> - container_of(pc, struct tcf_defact, common)
> +#define to_defact(a) \
> + container_of(a->priv, struct tcf_defact, common)
>
> #endif /* __NET_TC_DEF_H */
> diff --git a/include/net/tc_act/tc_gact.h b/include/net/tc_act/tc_gact.h
> index 9e3f676..9fc9b57 100644
> --- a/include/net/tc_act/tc_gact.h
> +++ b/include/net/tc_act/tc_gact.h
> @@ -11,7 +11,7 @@ struct tcf_gact {
> int tcfg_paction;
> #endif
> };
> -#define to_gact(pc) \
> - container_of(pc, struct tcf_gact, common)
> +#define to_gact(a) \
> + container_of(a->priv, struct tcf_gact, common)
>
> #endif /* __NET_TC_GACT_H */
> diff --git a/include/net/tc_act/tc_ipt.h b/include/net/tc_act/tc_ipt.h
> index f7d25df..c0f4193 100644
> --- a/include/net/tc_act/tc_ipt.h
> +++ b/include/net/tc_act/tc_ipt.h
> @@ -11,7 +11,7 @@ struct tcf_ipt {
> char *tcfi_tname;
> struct xt_entry_target *tcfi_t;
> };
> -#define to_ipt(pc) \
> - container_of(pc, struct tcf_ipt, common)
> +#define to_ipt(a) \
> + container_of(a->priv, struct tcf_ipt, common)
>
> #endif /* __NET_TC_IPT_H */
> diff --git a/include/net/tc_act/tc_mirred.h b/include/net/tc_act/tc_mirred.h
> index cfe2943..4dd77a1 100644
> --- a/include/net/tc_act/tc_mirred.h
> +++ b/include/net/tc_act/tc_mirred.h
> @@ -11,7 +11,7 @@ struct tcf_mirred {
> struct net_device *tcfm_dev;
> struct list_head tcfm_list;
> };
> -#define to_mirred(pc) \
> - container_of(pc, struct tcf_mirred, common)
> +#define to_mirred(a) \
> + container_of(a->priv, struct tcf_mirred, common)
>
> #endif /* __NET_TC_MIR_H */
> diff --git a/include/net/tc_act/tc_nat.h b/include/net/tc_act/tc_nat.h
> index 4a691f3..63d8e9c 100644
> --- a/include/net/tc_act/tc_nat.h
> +++ b/include/net/tc_act/tc_nat.h
> @@ -13,9 +13,9 @@ struct tcf_nat {
> u32 flags;
> };
>
> -static inline struct tcf_nat *to_tcf_nat(struct tcf_common *pc)
> +static inline struct tcf_nat *to_tcf_nat(struct tc_action *a)
> {
> - return container_of(pc, struct tcf_nat, common);
> + return container_of(a->priv, struct tcf_nat, common);
> }
>
> #endif /* __NET_TC_NAT_H */
> diff --git a/include/net/tc_act/tc_pedit.h b/include/net/tc_act/tc_pedit.h
> index e6f6e15..5b80998 100644
> --- a/include/net/tc_act/tc_pedit.h
> +++ b/include/net/tc_act/tc_pedit.h
> @@ -9,7 +9,7 @@ struct tcf_pedit {
> unsigned char tcfp_flags;
> struct tc_pedit_key *tcfp_keys;
> };
> -#define to_pedit(pc) \
> - container_of(pc, struct tcf_pedit, common)
> +#define to_pedit(a) \
> + container_of(a->priv, struct tcf_pedit, common)
>
> #endif /* __NET_TC_PED_H */
> diff --git a/include/net/tc_act/tc_skbedit.h b/include/net/tc_act/tc_skbedit.h
> index dd5d86f..0df9a0d 100644
> --- a/include/net/tc_act/tc_skbedit.h
> +++ b/include/net/tc_act/tc_skbedit.h
> @@ -29,7 +29,7 @@ struct tcf_skbedit {
> u16 queue_mapping;
> /* XXX: 16-bit pad here? */
> };
> -#define to_skbedit(pc) \
> - container_of(pc, struct tcf_skbedit, common)
> +#define to_skbedit(a) \
> + container_of(a->priv, struct tcf_skbedit, common)
>
> #endif /* __NET_TC_SKBEDIT_H */
> diff --git a/net/sched/act_api.c b/net/sched/act_api.c
> index 72bdc71..4f2b807 100644
> --- a/net/sched/act_api.c
> +++ b/net/sched/act_api.c
> @@ -27,8 +27,11 @@
> #include <net/act_api.h>
> #include <net/netlink.h>
>
> -void tcf_hash_destroy(struct tcf_common *p, struct tcf_hashinfo *hinfo)
> +void tcf_hash_destroy(struct tc_action *a)
> {
> + struct tcf_common *p = a->priv;
> + struct tcf_hashinfo *hinfo = a->ops->hinfo;
> +
> spin_lock_bh(&hinfo->lock);
> hlist_del(&p->tcfc_head);
> spin_unlock_bh(&hinfo->lock);
> @@ -42,9 +45,9 @@ void tcf_hash_destroy(struct tcf_common *p, struct tcf_hashinfo *hinfo)
> }
> EXPORT_SYMBOL(tcf_hash_destroy);
>
> -int tcf_hash_release(struct tcf_common *p, int bind,
> - struct tcf_hashinfo *hinfo)
> +int tcf_hash_release(struct tc_action *a, int bind)
> {
> + struct tcf_common *p = a->priv;
> int ret = 0;
>
> if (p) {
> @@ -53,7 +56,7 @@ int tcf_hash_release(struct tcf_common *p, int bind,
>
> p->tcfc_refcnt--;
> if (p->tcfc_bindcnt <= 0 && p->tcfc_refcnt <= 0) {
> - tcf_hash_destroy(p, hinfo);
> + tcf_hash_destroy(a);
> ret = 1;
> }
> }
> @@ -127,7 +130,8 @@ static int tcf_del_walker(struct sk_buff *skb, struct tc_action *a)
> for (i = 0; i < (hinfo->hmask + 1); i++) {
> head = &hinfo->htab[tcf_hash(i, hinfo->hmask)];
> hlist_for_each_entry_safe(p, n, head, tcfc_head) {
> - if (ACT_P_DELETED == tcf_hash_release(p, 0, hinfo)) {
> + a->priv = p;
> + if (ACT_P_DELETED == tcf_hash_release(a, 0)) {
> module_put(a->ops->owner);
> n_i++;
> }
> @@ -198,7 +202,7 @@ int tcf_hash_search(struct tc_action *a, u32 index)
> }
> EXPORT_SYMBOL(tcf_hash_search);
>
> -struct tcf_common *tcf_hash_check(u32 index, struct tc_action *a, int bind)
> +int tcf_hash_check(u32 index, struct tc_action *a, int bind)
> {
> struct tcf_hashinfo *hinfo = a->ops->hinfo;
> struct tcf_common *p = NULL;
> @@ -207,19 +211,30 @@ struct tcf_common *tcf_hash_check(u32 index, struct tc_action *a, int bind)
> p->tcfc_bindcnt++;
> p->tcfc_refcnt++;
> a->priv = p;
> + return 1;
> }
> - return p;
> + return 0;
> }
> EXPORT_SYMBOL(tcf_hash_check);
>
> -struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est,
> - struct tc_action *a, int size, int bind)
> +void tcf_hash_cleanup(struct tc_action *a, struct nlattr *est)
> +{
> + struct tcf_common *pc = a->priv;
> + if (est)
> + gen_kill_estimator(&pc->tcfc_bstats,
> + &pc->tcfc_rate_est);
> + kfree_rcu(pc, tcfc_rcu);
> +}
> +EXPORT_SYMBOL(tcf_hash_cleanup);
> +
> +int tcf_hash_create(u32 index, struct nlattr *est, struct tc_action *a,
> + int size, int bind)
> {
> struct tcf_hashinfo *hinfo = a->ops->hinfo;
> struct tcf_common *p = kzalloc(size, GFP_KERNEL);
>
> if (unlikely(!p))
> - return ERR_PTR(-ENOMEM);
> + return -ENOMEM;
> p->tcfc_refcnt = 1;
> if (bind)
> p->tcfc_bindcnt = 1;
> @@ -234,17 +249,19 @@ struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est,
> &p->tcfc_lock, est);
> if (err) {
> kfree(p);
> - return ERR_PTR(err);
> + return err;
> }
> }
>
> a->priv = (void *) p;
> - return p;
> + return 0;
> }
> EXPORT_SYMBOL(tcf_hash_create);
>
> -void tcf_hash_insert(struct tcf_common *p, struct tcf_hashinfo *hinfo)
> +void tcf_hash_insert(struct tc_action *a)
> {
> + struct tcf_common *p = a->priv;
> + struct tcf_hashinfo *hinfo = a->ops->hinfo;
> unsigned int h = tcf_hash(p->tcfc_index, hinfo->hmask);
>
> spin_lock_bh(&hinfo->lock);
> diff --git a/net/sched/act_csum.c b/net/sched/act_csum.c
> index 2210187..f0f6e7a 100644
> --- a/net/sched/act_csum.c
> +++ b/net/sched/act_csum.c
> @@ -48,7 +48,6 @@ static int tcf_csum_init(struct net *n, struct nlattr *nla, struct nlattr *est,
> {
> struct nlattr *tb[TCA_CSUM_MAX + 1];
> struct tc_csum *parm;
> - struct tcf_common *pc;
> struct tcf_csum *p;
> int ret = 0, err;
>
> @@ -63,38 +62,31 @@ static int tcf_csum_init(struct net *n, struct nlattr *nla, struct nlattr *est,
> return -EINVAL;
> parm = nla_data(tb[TCA_CSUM_PARMS]);
>
> - pc = tcf_hash_check(parm->index, a, bind);
> - if (!pc) {
> - pc = tcf_hash_create(parm->index, est, a, sizeof(*p), bind);
> - if (IS_ERR(pc))
> - return PTR_ERR(pc);
> + if (!tcf_hash_check(parm->index, a, bind)) {
> + ret = tcf_hash_create(parm->index, est, a, sizeof(*p), bind);
> + if (ret)
> + return ret;
> ret = ACT_P_CREATED;
> } else {
> if (bind)/* dont override defaults */
> return 0;
> - tcf_hash_release(pc, bind, a->ops->hinfo);
> + tcf_hash_release(a, bind);
> if (!ovr)
> return -EEXIST;
> }
>
> - p = to_tcf_csum(pc);
> + p = to_tcf_csum(a);
> spin_lock_bh(&p->tcf_lock);
> p->tcf_action = parm->action;
> p->update_flags = parm->update_flags;
> spin_unlock_bh(&p->tcf_lock);
>
> if (ret == ACT_P_CREATED)
> - tcf_hash_insert(pc, a->ops->hinfo);
> + tcf_hash_insert(a);
>
> return ret;
> }
>
> -static int tcf_csum_cleanup(struct tc_action *a, int bind)
> -{
> - struct tcf_csum *p = a->priv;
> - return tcf_hash_release(&p->common, bind, &csum_hash_info);
> -}
> -
> /**
> * tcf_csum_skb_nextlayer - Get next layer pointer
> * @skb: sk_buff to use
> @@ -574,7 +566,7 @@ static struct tc_action_ops act_csum_ops = {
> .owner = THIS_MODULE,
> .act = tcf_csum,
> .dump = tcf_csum_dump,
> - .cleanup = tcf_csum_cleanup,
> + .cleanup = tcf_hash_release,
> .init = tcf_csum_init,
> };
>
> diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c
> index a0eed30..af6c0ac 100644
> --- a/net/sched/act_gact.c
> +++ b/net/sched/act_gact.c
> @@ -57,7 +57,6 @@ static int tcf_gact_init(struct net *net, struct nlattr *nla,
> struct nlattr *tb[TCA_GACT_MAX + 1];
> struct tc_gact *parm;
> struct tcf_gact *gact;
> - struct tcf_common *pc;
> int ret = 0;
> int err;
> #ifdef CONFIG_GACT_PROB
> @@ -86,21 +85,20 @@ static int tcf_gact_init(struct net *net, struct nlattr *nla,
> }
> #endif
>
> - pc = tcf_hash_check(parm->index, a, bind);
> - if (!pc) {
> - pc = tcf_hash_create(parm->index, est, a, sizeof(*gact), bind);
> - if (IS_ERR(pc))
> - return PTR_ERR(pc);
> + if (!tcf_hash_check(parm->index, a, bind)) {
> + ret = tcf_hash_create(parm->index, est, a, sizeof(*gact), bind);
> + if (ret)
> + return ret;
> ret = ACT_P_CREATED;
> } else {
> if (bind)/* dont override defaults */
> return 0;
> - tcf_hash_release(pc, bind, a->ops->hinfo);
> + tcf_hash_release(a, bind);
> if (!ovr)
> return -EEXIST;
> }
>
> - gact = to_gact(pc);
> + gact = to_gact(a);
>
> spin_lock_bh(&gact->tcf_lock);
> gact->tcf_action = parm->action;
> @@ -113,19 +111,10 @@ static int tcf_gact_init(struct net *net, struct nlattr *nla,
> #endif
> spin_unlock_bh(&gact->tcf_lock);
> if (ret == ACT_P_CREATED)
> - tcf_hash_insert(pc, a->ops->hinfo);
> + tcf_hash_insert(a);
> return ret;
> }
>
> -static int tcf_gact_cleanup(struct tc_action *a, int bind)
> -{
> - struct tcf_gact *gact = a->priv;
> -
> - if (gact)
> - return tcf_hash_release(&gact->common, bind, a->ops->hinfo);
> - return 0;
> -}
> -
> static int tcf_gact(struct sk_buff *skb, const struct tc_action *a,
> struct tcf_result *res)
> {
> @@ -196,7 +185,7 @@ static struct tc_action_ops act_gact_ops = {
> .owner = THIS_MODULE,
> .act = tcf_gact,
> .dump = tcf_gact_dump,
> - .cleanup = tcf_gact_cleanup,
> + .cleanup = tcf_hash_release,
> .init = tcf_gact_init,
> };
>
> diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c
> index 0a6d621..f5e6978 100644
> --- a/net/sched/act_ipt.c
> +++ b/net/sched/act_ipt.c
> @@ -69,8 +69,9 @@ static void ipt_destroy_target(struct xt_entry_target *t)
> module_put(par.target->me);
> }
>
> -static int tcf_ipt_release(struct tcf_ipt *ipt, int bind)
> +static int tcf_ipt_release(struct tc_action *a, int bind)
> {
> + struct tcf_ipt *ipt = to_ipt(a);
> int ret = 0;
> if (ipt) {
> if (bind)
> @@ -80,7 +81,7 @@ static int tcf_ipt_release(struct tcf_ipt *ipt, int bind)
> ipt_destroy_target(ipt->tcfi_t);
> kfree(ipt->tcfi_tname);
> kfree(ipt->tcfi_t);
> - tcf_hash_destroy(&ipt->common, &ipt_hash_info);
> + tcf_hash_destroy(a);
> ret = ACT_P_DELETED;
> }
> }
> @@ -99,7 +100,6 @@ static int tcf_ipt_init(struct net *net, struct nlattr *nla, struct nlattr *est,
> {
> struct nlattr *tb[TCA_IPT_MAX + 1];
> struct tcf_ipt *ipt;
> - struct tcf_common *pc;
> struct xt_entry_target *td, *t;
> char *tname;
> int ret = 0, err;
> @@ -125,21 +125,20 @@ static int tcf_ipt_init(struct net *net, struct nlattr *nla, struct nlattr *est,
> if (tb[TCA_IPT_INDEX] != NULL)
> index = nla_get_u32(tb[TCA_IPT_INDEX]);
>
> - pc = tcf_hash_check(index, a, bind);
> - if (!pc) {
> - pc = tcf_hash_create(index, est, a, sizeof(*ipt), bind);
> - if (IS_ERR(pc))
> - return PTR_ERR(pc);
> + if (!tcf_hash_check(index, a, bind) ) {
> + ret = tcf_hash_create(index, est, a, sizeof(*ipt), bind);
> + if (ret)
> + return ret;
> ret = ACT_P_CREATED;
> } else {
> if (bind)/* dont override defaults */
> return 0;
> - tcf_ipt_release(to_ipt(pc), bind);
> + tcf_ipt_release(a, bind);
>
> if (!ovr)
> return -EEXIST;
> }
> - ipt = to_ipt(pc);
> + ipt = to_ipt(a);
>
> hook = nla_get_u32(tb[TCA_IPT_HOOK]);
>
> @@ -170,7 +169,7 @@ static int tcf_ipt_init(struct net *net, struct nlattr *nla, struct nlattr *est,
> ipt->tcfi_hook = hook;
> spin_unlock_bh(&ipt->tcf_lock);
> if (ret == ACT_P_CREATED)
> - tcf_hash_insert(pc, a->ops->hinfo);
> + tcf_hash_insert(a);
> return ret;
>
> err3:
> @@ -178,21 +177,11 @@ err3:
> err2:
> kfree(tname);
> err1:
> - if (ret == ACT_P_CREATED) {
> - if (est)
> - gen_kill_estimator(&pc->tcfc_bstats,
> - &pc->tcfc_rate_est);
> - kfree_rcu(pc, tcfc_rcu);
> - }
> + if (ret == ACT_P_CREATED)
> + tcf_hash_cleanup(a, est);
> return err;
> }
>
> -static int tcf_ipt_cleanup(struct tc_action *a, int bind)
> -{
> - struct tcf_ipt *ipt = a->priv;
> - return tcf_ipt_release(ipt, bind);
> -}
> -
> static int tcf_ipt(struct sk_buff *skb, const struct tc_action *a,
> struct tcf_result *res)
> {
> @@ -289,7 +278,7 @@ static struct tc_action_ops act_ipt_ops = {
> .owner = THIS_MODULE,
> .act = tcf_ipt,
> .dump = tcf_ipt_dump,
> - .cleanup = tcf_ipt_cleanup,
> + .cleanup = tcf_ipt_release,
> .init = tcf_ipt_init,
> };
>
> @@ -300,7 +289,7 @@ static struct tc_action_ops act_xt_ops = {
> .owner = THIS_MODULE,
> .act = tcf_ipt,
> .dump = tcf_ipt_dump,
> - .cleanup = tcf_ipt_cleanup,
> + .cleanup = tcf_ipt_release,
> .init = tcf_ipt_init,
> };
>
> diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
> index 0b2c6d3..3edeeca 100644
> --- a/net/sched/act_mirred.c
> +++ b/net/sched/act_mirred.c
> @@ -33,8 +33,9 @@
> static LIST_HEAD(mirred_list);
> static struct tcf_hashinfo mirred_hash_info;
>
> -static int tcf_mirred_release(struct tcf_mirred *m, int bind)
> +static int tcf_mirred_release(struct tc_action *a, int bind)
> {
> + struct tcf_mirred *m = to_mirred(a);
> if (m) {
> if (bind)
> m->tcf_bindcnt--;
> @@ -43,7 +44,7 @@ static int tcf_mirred_release(struct tcf_mirred *m, int bind)
> list_del(&m->tcfm_list);
> if (m->tcfm_dev)
> dev_put(m->tcfm_dev);
> - tcf_hash_destroy(&m->common, &mirred_hash_info);
> + tcf_hash_destroy(a);
> return 1;
> }
> }
> @@ -61,7 +62,6 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla,
> struct nlattr *tb[TCA_MIRRED_MAX + 1];
> struct tc_mirred *parm;
> struct tcf_mirred *m;
> - struct tcf_common *pc;
> struct net_device *dev;
> int ret, ok_push = 0;
>
> @@ -101,21 +101,20 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla,
> dev = NULL;
> }
>
> - pc = tcf_hash_check(parm->index, a, bind);
> - if (!pc) {
> + if (!tcf_hash_check(parm->index, a, bind)) {
> if (dev == NULL)
> return -EINVAL;
> - pc = tcf_hash_create(parm->index, est, a, sizeof(*m), bind);
> - if (IS_ERR(pc))
> - return PTR_ERR(pc);
> + ret = tcf_hash_create(parm->index, est, a, sizeof(*m), bind);
> + if (ret)
> + return ret;
> ret = ACT_P_CREATED;
> } else {
> if (!ovr) {
> - tcf_mirred_release(to_mirred(pc), bind);
> + tcf_mirred_release(a, bind);
> return -EEXIST;
> }
> }
> - m = to_mirred(pc);
> + m = to_mirred(a);
>
> spin_lock_bh(&m->tcf_lock);
> m->tcf_action = parm->action;
> @@ -131,21 +130,12 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla,
> spin_unlock_bh(&m->tcf_lock);
> if (ret == ACT_P_CREATED) {
> list_add(&m->tcfm_list, &mirred_list);
> - tcf_hash_insert(pc, a->ops->hinfo);
> + tcf_hash_insert(a);
> }
>
> return ret;
> }
>
> -static int tcf_mirred_cleanup(struct tc_action *a, int bind)
> -{
> - struct tcf_mirred *m = a->priv;
> -
> - if (m)
> - return tcf_mirred_release(m, bind);
> - return 0;
> -}
> -
> static int tcf_mirred(struct sk_buff *skb, const struct tc_action *a,
> struct tcf_result *res)
> {
> @@ -259,7 +249,7 @@ static struct tc_action_ops act_mirred_ops = {
> .owner = THIS_MODULE,
> .act = tcf_mirred,
> .dump = tcf_mirred_dump,
> - .cleanup = tcf_mirred_cleanup,
> + .cleanup = tcf_mirred_release,
> .init = tcf_mirred_init,
> };
>
> diff --git a/net/sched/act_nat.c b/net/sched/act_nat.c
> index 81f0404..ce9a391 100644
> --- a/net/sched/act_nat.c
> +++ b/net/sched/act_nat.c
> @@ -44,7 +44,6 @@ static int tcf_nat_init(struct net *net, struct nlattr *nla, struct nlattr *est,
> struct tc_nat *parm;
> int ret = 0, err;
> struct tcf_nat *p;
> - struct tcf_common *pc;
>
> if (nla == NULL)
> return -EINVAL;
> @@ -57,20 +56,19 @@ static int tcf_nat_init(struct net *net, struct nlattr *nla, struct nlattr *est,
> return -EINVAL;
> parm = nla_data(tb[TCA_NAT_PARMS]);
>
> - pc = tcf_hash_check(parm->index, a, bind);
> - if (!pc) {
> - pc = tcf_hash_create(parm->index, est, a, sizeof(*p), bind);
> - if (IS_ERR(pc))
> - return PTR_ERR(pc);
> + if (!tcf_hash_check(parm->index, a, bind)) {
> + ret = tcf_hash_create(parm->index, est, a, sizeof(*p), bind);
> + if (ret)
> + return ret;
> ret = ACT_P_CREATED;
> } else {
> if (bind)
> return 0;
> - tcf_hash_release(pc, bind, a->ops->hinfo);
> + tcf_hash_release(a, bind);
> if (!ovr)
> return -EEXIST;
> }
> - p = to_tcf_nat(pc);
> + p = to_tcf_nat(a);
>
> spin_lock_bh(&p->tcf_lock);
> p->old_addr = parm->old_addr;
> @@ -82,18 +80,11 @@ static int tcf_nat_init(struct net *net, struct nlattr *nla, struct nlattr *est,
> spin_unlock_bh(&p->tcf_lock);
>
> if (ret == ACT_P_CREATED)
> - tcf_hash_insert(pc, a->ops->hinfo);
> + tcf_hash_insert(a);
>
> return ret;
> }
>
> -static int tcf_nat_cleanup(struct tc_action *a, int bind)
> -{
> - struct tcf_nat *p = a->priv;
> -
> - return tcf_hash_release(&p->common, bind, &nat_hash_info);
> -}
> -
> static int tcf_nat(struct sk_buff *skb, const struct tc_action *a,
> struct tcf_result *res)
> {
> @@ -298,7 +289,7 @@ static struct tc_action_ops act_nat_ops = {
> .owner = THIS_MODULE,
> .act = tcf_nat,
> .dump = tcf_nat_dump,
> - .cleanup = tcf_nat_cleanup,
> + .cleanup = tcf_hash_release,
> .init = tcf_nat_init,
> };
>
> diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
> index be3f0f6..091ced3 100644
> --- a/net/sched/act_pedit.c
> +++ b/net/sched/act_pedit.c
> @@ -39,7 +39,6 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla,
> struct tc_pedit *parm;
> int ret = 0, err;
> struct tcf_pedit *p;
> - struct tcf_common *pc;
> struct tc_pedit_key *keys = NULL;
> int ksize;
>
> @@ -57,26 +56,22 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla,
> if (nla_len(tb[TCA_PEDIT_PARMS]) < sizeof(*parm) + ksize)
> return -EINVAL;
>
> - pc = tcf_hash_check(parm->index, a, bind);
> - if (!pc) {
> + if (!tcf_hash_check(parm->index, a, bind)) {
> if (!parm->nkeys)
> return -EINVAL;
> - pc = tcf_hash_create(parm->index, est, a, sizeof(*p), bind);
> - if (IS_ERR(pc))
> - return PTR_ERR(pc);
> - p = to_pedit(pc);
> + ret = tcf_hash_create(parm->index, est, a, sizeof(*p), bind);
> + if (ret)
> + return ret;
> + p = to_pedit(a);
> keys = kmalloc(ksize, GFP_KERNEL);
> if (keys == NULL) {
> - if (est)
> - gen_kill_estimator(&pc->tcfc_bstats,
> - &pc->tcfc_rate_est);
> - kfree_rcu(pc, tcfc_rcu);
> + tcf_hash_cleanup(a, est);
> return -ENOMEM;
> }
> ret = ACT_P_CREATED;
> } else {
> - p = to_pedit(pc);
> - tcf_hash_release(pc, bind, a->ops->hinfo);
> + p = to_pedit(a);
> + tcf_hash_release(a, bind);
> if (bind)
> return 0;
> if (!ovr)
> @@ -100,7 +95,7 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla,
> memcpy(p->tcfp_keys, parm->keys, ksize);
> spin_unlock_bh(&p->tcf_lock);
> if (ret == ACT_P_CREATED)
> - tcf_hash_insert(pc, a->ops->hinfo);
> + tcf_hash_insert(a);
> return ret;
> }
>
> @@ -110,7 +105,7 @@ static int tcf_pedit_cleanup(struct tc_action *a, int bind)
>
> if (p) {
> struct tc_pedit_key *keys = p->tcfp_keys;
> - if (tcf_hash_release(&p->common, bind, &pedit_hash_info)) {
> + if (tcf_hash_release(a, bind)) {
> kfree(keys);
> return 1;
> }
> diff --git a/net/sched/act_police.c b/net/sched/act_police.c
> index 1778209..4695d02 100644
> --- a/net/sched/act_police.c
> +++ b/net/sched/act_police.c
> @@ -253,14 +253,6 @@ failure:
> return err;
> }
>
> -static int tcf_act_police_cleanup(struct tc_action *a, int bind)
> -{
> - struct tcf_police *p = a->priv;
> - if (p)
> - return tcf_hash_release(&p->common, bind, &police_hash_info);
> - return 0;
> -}
> -
> static int tcf_act_police(struct sk_buff *skb, const struct tc_action *a,
> struct tcf_result *res)
> {
> @@ -362,7 +354,7 @@ static struct tc_action_ops act_police_ops = {
> .owner = THIS_MODULE,
> .act = tcf_act_police,
> .dump = tcf_act_police_dump,
> - .cleanup = tcf_act_police_cleanup,
> + .cleanup = tcf_hash_release,
> .init = tcf_act_police_locate,
> .walk = tcf_act_police_walker
> };
> diff --git a/net/sched/act_simple.c b/net/sched/act_simple.c
> index 8ef2f1f..11c2922 100644
> --- a/net/sched/act_simple.c
> +++ b/net/sched/act_simple.c
> @@ -47,8 +47,9 @@ static int tcf_simp(struct sk_buff *skb, const struct tc_action *a,
> return d->tcf_action;
> }
>
> -static int tcf_simp_release(struct tcf_defact *d, int bind)
> +static int tcf_simp_release(struct tc_action *a, int bind)
> {
> + struct tcf_defact *d = to_defact(a);
> int ret = 0;
> if (d) {
> if (bind)
> @@ -56,7 +57,7 @@ static int tcf_simp_release(struct tcf_defact *d, int bind)
> d->tcf_refcnt--;
> if (d->tcf_bindcnt <= 0 && d->tcf_refcnt <= 0) {
> kfree(d->tcfd_defdata);
> - tcf_hash_destroy(&d->common, &simp_hash_info);
> + tcf_hash_destroy(a);
> ret = 1;
> }
> }
> @@ -94,7 +95,6 @@ static int tcf_simp_init(struct net *net, struct nlattr *nla,
> struct nlattr *tb[TCA_DEF_MAX + 1];
> struct tc_defact *parm;
> struct tcf_defact *d;
> - struct tcf_common *pc;
> char *defdata;
> int ret = 0, err;
>
> @@ -114,29 +114,25 @@ static int tcf_simp_init(struct net *net, struct nlattr *nla,
> parm = nla_data(tb[TCA_DEF_PARMS]);
> defdata = nla_data(tb[TCA_DEF_DATA]);
>
> - pc = tcf_hash_check(parm->index, a, bind);
> - if (!pc) {
> - pc = tcf_hash_create(parm->index, est, a, sizeof(*d), bind);
> - if (IS_ERR(pc))
> - return PTR_ERR(pc);
> + if (!tcf_hash_check(parm->index, a, bind)) {
> + ret = tcf_hash_create(parm->index, est, a, sizeof(*d), bind);
> + if (ret)
> + return ret;
>
> - d = to_defact(pc);
> + d = to_defact(a);
> ret = alloc_defdata(d, defdata);
> if (ret < 0) {
> - if (est)
> - gen_kill_estimator(&pc->tcfc_bstats,
> - &pc->tcfc_rate_est);
> - kfree_rcu(pc, tcfc_rcu);
> + tcf_hash_cleanup(a, est);
> return ret;
> }
> d->tcf_action = parm->action;
> ret = ACT_P_CREATED;
> } else {
> - d = to_defact(pc);
> + d = to_defact(a);
>
> if (bind)
> return 0;
> - tcf_simp_release(d, bind);
> + tcf_simp_release(a, bind);
> if (!ovr)
> return -EEXIST;
>
> @@ -144,19 +140,10 @@ static int tcf_simp_init(struct net *net, struct nlattr *nla,
> }
>
> if (ret == ACT_P_CREATED)
> - tcf_hash_insert(pc, a->ops->hinfo);
> + tcf_hash_insert(a);
> return ret;
> }
>
> -static int tcf_simp_cleanup(struct tc_action *a, int bind)
> -{
> - struct tcf_defact *d = a->priv;
> -
> - if (d)
> - return tcf_simp_release(d, bind);
> - return 0;
> -}
> -
> static int tcf_simp_dump(struct sk_buff *skb, struct tc_action *a,
> int bind, int ref)
> {
> @@ -192,7 +179,7 @@ static struct tc_action_ops act_simp_ops = {
> .owner = THIS_MODULE,
> .act = tcf_simp,
> .dump = tcf_simp_dump,
> - .cleanup = tcf_simp_cleanup,
> + .cleanup = tcf_simp_release,
> .init = tcf_simp_init,
> };
>
> diff --git a/net/sched/act_skbedit.c b/net/sched/act_skbedit.c
> index 9872508..71fd2d4 100644
> --- a/net/sched/act_skbedit.c
> +++ b/net/sched/act_skbedit.c
> @@ -65,7 +65,6 @@ static int tcf_skbedit_init(struct net *net, struct nlattr *nla,
> struct nlattr *tb[TCA_SKBEDIT_MAX + 1];
> struct tc_skbedit *parm;
> struct tcf_skbedit *d;
> - struct tcf_common *pc;
> u32 flags = 0, *priority = NULL, *mark = NULL;
> u16 *queue_mapping = NULL;
> int ret = 0, err;
> @@ -100,19 +99,18 @@ static int tcf_skbedit_init(struct net *net, struct nlattr *nla,
>
> parm = nla_data(tb[TCA_SKBEDIT_PARMS]);
>
> - pc = tcf_hash_check(parm->index, a, bind);
> - if (!pc) {
> - pc = tcf_hash_create(parm->index, est, a, sizeof(*d), bind);
> - if (IS_ERR(pc))
> - return PTR_ERR(pc);
> + if (!tcf_hash_check(parm->index, a, bind)) {
> + ret = tcf_hash_create(parm->index, est, a, sizeof(*d), bind);
> + if (ret)
> + return ret;
>
> - d = to_skbedit(pc);
> + d = to_skbedit(a);
> ret = ACT_P_CREATED;
> } else {
> - d = to_skbedit(pc);
> + d = to_skbedit(a);
> if (bind)
> return 0;
> - tcf_hash_release(pc, bind, a->ops->hinfo);
> + tcf_hash_release(a, bind);
> if (!ovr)
> return -EEXIST;
> }
> @@ -132,19 +130,10 @@ 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(pc, a->ops->hinfo);
> + tcf_hash_insert(a);
> return ret;
> }
>
> -static int tcf_skbedit_cleanup(struct tc_action *a, int bind)
> -{
> - struct tcf_skbedit *d = a->priv;
> -
> - if (d)
> - return tcf_hash_release(&d->common, bind, &skbedit_hash_info);
> - return 0;
> -}
> -
> static int tcf_skbedit_dump(struct sk_buff *skb, struct tc_action *a,
> int bind, int ref)
> {
> @@ -191,7 +180,7 @@ static struct tc_action_ops act_skbedit_ops = {
> .owner = THIS_MODULE,
> .act = tcf_skbedit,
> .dump = tcf_skbedit_dump,
> - .cleanup = tcf_skbedit_cleanup,
> + .cleanup = tcf_hash_release,
> .init = tcf_skbedit_init,
> };
>
>
--
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