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net_sched: act: move idx_gen into struct tcf_hashinfo

Browse Source 
There is no need to store the index separatedly
since tcf_hashinfo is allocated statically too.

Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
WANG Cong 2014-01-09 16:13:59 -08:00 committed by David S. Miller
parent 600adc18eb
commit ddafd34f41
11 changed files with 18 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
include/net/act_api.h
View File

@ -39,6 +39,7 @@ struct tcf_hashinfo {
struct hlist_head *htab;
unsigned int hmask;
spinlock_t lock;
u32 index;
};
static inline unsigned int tcf_hash(u32 index, unsigned int hmask)
@ -51,6 +52,7 @@ static inline int tcf_hashinfo_init(struct tcf_hashinfo *hf, unsigned int mask)
int i;
spin_lock_init(&hf->lock);
hf->index = 0;
hf->hmask = mask;
hf->htab = kzalloc((mask + 1) * sizeof(struct hlist_head),
GFP_KERNEL);
@ -105,13 +107,12 @@ struct tcf_common *tcf_hash_lookup(u32 index, struct tcf_hashinfo *hinfo);
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);
u32 tcf_hash_new_index(u32 *idx_gen, struct tcf_hashinfo *hinfo);
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_hashinfo *hinfo);
struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est,
struct tc_action *a, int size,
int bind, u32 *idx_gen,
struct tcf_hashinfo *hinfo);
int bind, struct tcf_hashinfo *hinfo);
void tcf_hash_insert(struct tcf_common *p, struct tcf_hashinfo *hinfo);
int tcf_register_action(struct tc_action_ops *a);

10
net/sched/act_api.c
View File

@ -173,16 +173,16 @@ struct tcf_common *tcf_hash_lookup(u32 index, struct tcf_hashinfo *hinfo)
}
EXPORT_SYMBOL(tcf_hash_lookup);
u32 tcf_hash_new_index(u32 *idx_gen, struct tcf_hashinfo *hinfo)
u32 tcf_hash_new_index(struct tcf_hashinfo *hinfo)
{
u32 val = *idx_gen;
u32 val = hinfo->index;
do {
if (++val == 0)
val = 1;
} while (tcf_hash_lookup(val, hinfo));
*idx_gen = val;
hinfo->index = val;
return val;
}
EXPORT_SYMBOL(tcf_hash_new_index);
@ -215,7 +215,7 @@ EXPORT_SYMBOL(tcf_hash_check);
struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est,
struct tc_action *a, int size, int bind,
u32 *idx_gen, struct tcf_hashinfo *hinfo)
struct tcf_hashinfo *hinfo)
{
struct tcf_common *p = kzalloc(size, GFP_KERNEL);
@ -227,7 +227,7 @@ struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est,
spin_lock_init(&p->tcfc_lock);
INIT_HLIST_NODE(&p->tcfc_head);
p->tcfc_index = index ? index : tcf_hash_new_index(idx_gen, hinfo);
p->tcfc_index = index ? index : tcf_hash_new_index(hinfo);
p->tcfc_tm.install = jiffies;
p->tcfc_tm.lastuse = jiffies;
if (est) {

3
net/sched/act_csum.c
View File

@ -37,7 +37,6 @@
#include <net/tc_act/tc_csum.h>
#define CSUM_TAB_MASK 15
static u32 csum_idx_gen;
static struct tcf_hashinfo csum_hash_info;
static const struct nla_policy csum_policy[TCA_CSUM_MAX + 1] = {
@ -67,7 +66,7 @@ static int tcf_csum_init(struct net *n, struct nlattr *nla, struct nlattr *est,
pc = tcf_hash_check(parm->index, a, bind, &csum_hash_info);
if (!pc) {
pc = tcf_hash_create(parm->index, est, a, sizeof(*p), bind,
&csum_idx_gen, &csum_hash_info);
&csum_hash_info);
if (IS_ERR(pc))
return PTR_ERR(pc);
ret = ACT_P_CREATED;

3
net/sched/act_gact.c
View File

@ -24,7 +24,6 @@
#include <net/tc_act/tc_gact.h>
#define GACT_TAB_MASK 15
static u32 gact_idx_gen;
static struct tcf_hashinfo gact_hash_info;
#ifdef CONFIG_GACT_PROB
@ -90,7 +89,7 @@ static int tcf_gact_init(struct net *net, struct nlattr *nla,
pc = tcf_hash_check(parm->index, a, bind, &gact_hash_info);
if (!pc) {
pc = tcf_hash_create(parm->index, est, a, sizeof(*gact),
bind, &gact_idx_gen, &gact_hash_info);
bind, &gact_hash_info);
if (IS_ERR(pc))
return PTR_ERR(pc);
ret = ACT_P_CREATED;

3
net/sched/act_ipt.c
View File

@ -29,7 +29,6 @@
#define IPT_TAB_MASK 15
static u32 ipt_idx_gen;
static struct tcf_hashinfo ipt_hash_info;
static int ipt_init_target(struct xt_entry_target *t, char *table, unsigned int hook)
@ -129,7 +128,7 @@ static int tcf_ipt_init(struct net *net, struct nlattr *nla, struct nlattr *est,
pc = tcf_hash_check(index, a, bind, &ipt_hash_info);
if (!pc) {
pc = tcf_hash_create(index, est, a, sizeof(*ipt), bind,
&ipt_idx_gen, &ipt_hash_info);
&ipt_hash_info);
if (IS_ERR(pc))
return PTR_ERR(pc);
ret = ACT_P_CREATED;

3
net/sched/act_mirred.c
View File

@ -30,7 +30,6 @@
#include <linux/if_arp.h>
#define MIRRED_TAB_MASK 7
static u32 mirred_idx_gen;
static LIST_HEAD(mirred_list);
static struct tcf_hashinfo mirred_hash_info;
@ -107,7 +106,7 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla,
if (dev == NULL)
return -EINVAL;
pc = tcf_hash_create(parm->index, est, a, sizeof(*m), bind,
&mirred_idx_gen, &mirred_hash_info);
&mirred_hash_info);
if (IS_ERR(pc))
return PTR_ERR(pc);
ret = ACT_P_CREATED;

3
net/sched/act_nat.c
View File

@ -30,7 +30,6 @@
#define NAT_TAB_MASK 15
static u32 nat_idx_gen;
static struct tcf_hashinfo nat_hash_info;
@ -61,7 +60,7 @@ static int tcf_nat_init(struct net *net, struct nlattr *nla, struct nlattr *est,
pc = tcf_hash_check(parm->index, a, bind, &nat_hash_info);
if (!pc) {
pc = tcf_hash_create(parm->index, est, a, sizeof(*p), bind,
&nat_idx_gen, &nat_hash_info);
&nat_hash_info);
if (IS_ERR(pc))
return PTR_ERR(pc);
ret = ACT_P_CREATED;

3
net/sched/act_pedit.c
View File

@ -24,7 +24,6 @@
#include <net/tc_act/tc_pedit.h>
#define PEDIT_TAB_MASK 15
static u32 pedit_idx_gen;
static struct tcf_hashinfo pedit_hash_info;
@ -63,7 +62,7 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla,
if (!parm->nkeys)
return -EINVAL;
pc = tcf_hash_create(parm->index, est, a, sizeof(*p), bind,
&pedit_idx_gen, &pedit_hash_info);
&pedit_hash_info);
if (IS_ERR(pc))
return PTR_ERR(pc);
p = to_pedit(pc);

3
net/sched/act_police.c
View File

@ -41,7 +41,6 @@ struct tcf_police {
container_of(pc, struct tcf_police, common)
#define POL_TAB_MASK 15
static u32 police_idx_gen;
static struct tcf_hashinfo police_hash_info;
/* old policer structure from before tc actions */
@ -251,7 +250,7 @@ static int tcf_act_police_locate(struct net *net, struct nlattr *nla,
police->tcfp_t_c = ktime_to_ns(ktime_get());
police->tcf_index = parm->index ? parm->index :
tcf_hash_new_index(&police_idx_gen, &police_hash_info);
tcf_hash_new_index(&police_hash_info);
h = tcf_hash(police->tcf_index, POL_TAB_MASK);
spin_lock_bh(&police_hash_info.lock);
hlist_add_head(&police->tcf_head, &police_hash_info.htab[h]);

3
net/sched/act_simple.c
View File

@ -25,7 +25,6 @@
#include <net/tc_act/tc_defact.h>
#define SIMP_TAB_MASK 7
static u32 simp_idx_gen;
static struct tcf_hashinfo simp_hash_info;
#define SIMP_MAX_DATA 32
@ -118,7 +117,7 @@ static int tcf_simp_init(struct net *net, struct nlattr *nla,
pc = tcf_hash_check(parm->index, a, bind, &simp_hash_info);
if (!pc) {
pc = tcf_hash_create(parm->index, est, a, sizeof(*d), bind,
&simp_idx_gen, &simp_hash_info);
&simp_hash_info);
if (IS_ERR(pc))
return PTR_ERR(pc);

3
net/sched/act_skbedit.c
View File

@ -28,7 +28,6 @@
#include <net/tc_act/tc_skbedit.h>
#define SKBEDIT_TAB_MASK 15
static u32 skbedit_idx_gen;
static struct tcf_hashinfo skbedit_hash_info;
static int tcf_skbedit(struct sk_buff *skb, const struct tc_action *a,
@ -104,7 +103,7 @@ static int tcf_skbedit_init(struct net *net, struct nlattr *nla,
pc = tcf_hash_check(parm->index, a, bind, &skbedit_hash_info);
if (!pc) {
pc = tcf_hash_create(parm->index, est, a, sizeof(*d), bind,
&skbedit_idx_gen, &skbedit_hash_info);
&skbedit_hash_info);
if (IS_ERR(pc))
return PTR_ERR(pc);