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Reorder struct ip_fw_chain:

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* move rarely-used fields down
* move uh_lock to different cacheline
* remove some usused fields

Sponsored by:	Yandex LLC
This commit is contained in:
Alexander V. Chernikov 2014-01-24 09:13:30 +00:00
parent b65c25f54a
commit 5fa3fdd3d9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=261117
3 changed files with 12 additions and 10 deletions
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2
sys/netpfil/ipfw/ip_fw2.c
View File

@ -2666,7 +2666,7 @@ vnet_ipfw_init(const void *unused)
rule->set = RESVD_SET;
rule->cmd[0].len = 1;
rule->cmd[0].opcode = default_to_accept ? O_ACCEPT : O_DENY;
chain->rules = chain->default_rule = chain->map[0] = rule;
chain->default_rule = chain->map[0] = rule;
chain->id = rule->id = 1;
IPFW_LOCK_INIT(chain);

18
sys/netpfil/ipfw/ip_fw_private.h
View File

@ -213,25 +213,27 @@ VNET_DECLARE(unsigned int, fw_tables_max);
#define V_fw_tables_max VNET(fw_tables_max)
struct ip_fw_chain {
struct ip_fw *rules; /* list of rules */
struct ip_fw *reap; /* list of rules to reap */
struct ip_fw *default_rule;
int n_rules; /* number of static rules */
int static_len; /* total len of static rules */
struct ip_fw **map; /* array of rule ptrs to ease lookup */
uint32_t id; /* ruleset id */
int n_rules; /* number of static rules */
LIST_HEAD(nat_list, cfg_nat) nat; /* list of nat entries */
struct radix_node_head **tables; /* IPv4 tables */
struct radix_node_head **xtables; /* extended tables */
uint8_t *tabletype; /* Array of table types */
#if defined( __linux__ ) || defined( _WIN32 )
spinlock_t rwmtx;
spinlock_t uh_lock;
#else
struct rwlock rwmtx;
#endif
int static_len; /* total len of static rules */
uint32_t gencnt; /* NAT generation count */
struct ip_fw *reap; /* list of rules to reap */
struct ip_fw *default_rule;
#if defined( __linux__ ) || defined( _WIN32 )
spinlock_t uh_lock;
#else
struct rwlock uh_lock; /* lock for upper half */
#endif
uint32_t id; /* ruleset id */
uint32_t gencnt; /* generation count */
};
struct sockopt; /* used by tcp_var.h */

2
sys/netpfil/ipfw/ip_fw_sockopt.c
View File

@ -159,7 +159,7 @@ ipfw_add_rule(struct ip_fw_chain *chain, struct ip_fw *input_rule)
int i, l, insert_before;
struct ip_fw **map; /* the new array of pointers */
if (chain->rules == NULL || input_rule->rulenum > IPFW_DEFAULT_RULE-1)
if (chain->map == NULL || input_rule->rulenum > IPFW_DEFAULT_RULE - 1)
return (EINVAL);
l = RULESIZE(input_rule);