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[INET]: Move tcp_port_rover to inet_hashinfo

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Also expose all of the tcp_hashinfo members, i.e. killing those
tcp_ehash, etc macros, this will more clearly expose already generic
functions and some that need just a bit of work to become generic, as
we'll see in the upcoming changesets.

Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnaldo Carvalho de Melo
2005-08-09 20:07:35 -07:00
committed by David S. Miller
parent 2d8c4ce519
commit 6e04e02165
8 changed files with 118 additions and 128 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
net/ipv6/tcp_ipv6.c
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@@ -84,7 +84,7 @@ static __inline__ int tcp_v6_hashfn(struct in6_addr *laddr, u16 lport,
hashent ^= (laddr->s6_addr32[3] ^ faddr->s6_addr32[3]);
hashent ^= hashent>>16;
hashent ^= hashent>>8;
return (hashent & (tcp_ehash_size - 1));
return (hashent & (tcp_hashinfo.ehash_size - 1));
}
static __inline__ int tcp_v6_sk_hashfn(struct sock *sk)
@@ -138,15 +138,15 @@ static int tcp_v6_get_port(struct sock *sk, unsigned short snum)
int remaining = (high - low) + 1;
int rover;
spin_lock(&tcp_portalloc_lock);
if (tcp_port_rover < low)
spin_lock(&tcp_hashinfo.portalloc_lock);
if (tcp_hashinfo.port_rover < low)
rover = low;
else
rover = tcp_port_rover;
rover = tcp_hashinfo.port_rover;
do { rover++;
if (rover > high)
rover = low;
head = &tcp_bhash[inet_bhashfn(rover, tcp_bhash_size)];
head = &tcp_hashinfo.bhash[inet_bhashfn(rover, tcp_hashinfo.bhash_size)];
spin_lock(&head->lock);
inet_bind_bucket_for_each(tb, node, &head->chain)
if (tb->port == rover)
@@ -155,8 +155,8 @@ static int tcp_v6_get_port(struct sock *sk, unsigned short snum)
next:
spin_unlock(&head->lock);
} while (--remaining > 0);
tcp_port_rover = rover;
spin_unlock(&tcp_portalloc_lock);
tcp_hashinfo.port_rover = rover;
spin_unlock(&tcp_hashinfo.portalloc_lock);
/* Exhausted local port range during search? It is not
* possible for us to be holding one of the bind hash
@@ -171,7 +171,7 @@ static int tcp_v6_get_port(struct sock *sk, unsigned short snum)
/* OK, here is the one we will use. */
snum = rover;
} else {
head = &tcp_bhash[inet_bhashfn(snum, tcp_bhash_size)];
head = &tcp_hashinfo.bhash[inet_bhashfn(snum, tcp_hashinfo.bhash_size)];
spin_lock(&head->lock);
inet_bind_bucket_for_each(tb, node, &head->chain)
if (tb->port == snum)
@@ -192,8 +192,11 @@ tb_found:
}
tb_not_found:
ret = 1;
if (!tb && (tb = inet_bind_bucket_create(tcp_bucket_cachep, head, snum)) == NULL)
goto fail_unlock;
if (tb == NULL) {
tb = inet_bind_bucket_create(tcp_hashinfo.bind_bucket_cachep, head, snum);
if (tb == NULL)
goto fail_unlock;
}
if (hlist_empty(&tb->owners)) {
if (sk->sk_reuse && sk->sk_state != TCP_LISTEN)
tb->fastreuse = 1;
@@ -224,13 +227,13 @@ static __inline__ void __tcp_v6_hash(struct sock *sk)
BUG_TRAP(sk_unhashed(sk));
if (sk->sk_state == TCP_LISTEN) {
list = &tcp_listening_hash[inet_sk_listen_hashfn(sk)];
lock = &tcp_lhash_lock;
list = &tcp_hashinfo.listening_hash[inet_sk_listen_hashfn(sk)];
lock = &tcp_hashinfo.lhash_lock;
tcp_listen_wlock();
} else {
sk->sk_hashent = tcp_v6_sk_hashfn(sk);
list = &tcp_ehash[sk->sk_hashent].chain;
lock = &tcp_ehash[sk->sk_hashent].lock;
list = &tcp_hashinfo.ehash[sk->sk_hashent].chain;
lock = &tcp_hashinfo.ehash[sk->sk_hashent].lock;
write_lock(lock);
}
@@ -263,8 +266,8 @@ static struct sock *tcp_v6_lookup_listener(struct in6_addr *daddr, unsigned shor
int score, hiscore;
hiscore=0;
read_lock(&tcp_lhash_lock);
sk_for_each(sk, node, &tcp_listening_hash[inet_lhashfn(hnum)]) {
read_lock(&tcp_hashinfo.lhash_lock);
sk_for_each(sk, node, &tcp_hashinfo.listening_hash[inet_lhashfn(hnum)]) {
if (inet_sk(sk)->num == hnum && sk->sk_family == PF_INET6) {
struct ipv6_pinfo *np = inet6_sk(sk);
@@ -291,7 +294,7 @@ static struct sock *tcp_v6_lookup_listener(struct in6_addr *daddr, unsigned shor
}
if (result)
sock_hold(result);
read_unlock(&tcp_lhash_lock);
read_unlock(&tcp_hashinfo.lhash_lock);
return result;
}
@@ -315,7 +318,7 @@ static inline struct sock *__tcp_v6_lookup_established(struct in6_addr *saddr, u
* have wildcards anyways.
*/
hash = tcp_v6_hashfn(daddr, hnum, saddr, sport);
head = &tcp_ehash[hash];
head = &tcp_hashinfo.ehash[hash];
read_lock(&head->lock);
sk_for_each(sk, node, &head->chain) {
/* For IPV6 do the cheaper port and family tests first. */
@@ -323,7 +326,7 @@ static inline struct sock *__tcp_v6_lookup_established(struct in6_addr *saddr, u
goto hit; /* You sunk my battleship! */
}
/* Must check for a TIME_WAIT'er before going to listener hash. */
sk_for_each(sk, node, &(head + tcp_ehash_size)->chain) {
sk_for_each(sk, node, &(head + tcp_hashinfo.ehash_size)->chain) {
/* FIXME: acme: check this... */
struct tcp_tw_bucket *tw = (struct tcp_tw_bucket *)sk;
@@ -461,7 +464,7 @@ static int __tcp_v6_check_established(struct sock *sk, __u16 lport,
int dif = sk->sk_bound_dev_if;
u32 ports = TCP_COMBINED_PORTS(inet->dport, lport);
int hash = tcp_v6_hashfn(daddr, inet->num, saddr, inet->dport);
struct inet_ehash_bucket *head = &tcp_ehash[hash];
struct inet_ehash_bucket *head = &tcp_hashinfo.ehash[hash];
struct sock *sk2;
struct hlist_node *node;
struct tcp_tw_bucket *tw;
@@ -469,7 +472,7 @@ static int __tcp_v6_check_established(struct sock *sk, __u16 lport,
write_lock(&head->lock);
/* Check TIME-WAIT sockets first. */
sk_for_each(sk2, node, &(head + tcp_ehash_size)->chain) {
sk_for_each(sk2, node, &(head + tcp_hashinfo.ehash_size)->chain) {
tw = (struct tcp_tw_bucket*)sk2;
if(*((__u32 *)&(tw->tw_dport)) == ports &&
@@ -558,7 +561,7 @@ static int tcp_v6_hash_connect(struct sock *sk)
local_bh_disable();
for (i = 1; i <= range; i++) {
port = low + (i + offset) % range;
head = &tcp_bhash[inet_bhashfn(port, tcp_bhash_size)];
head = &tcp_hashinfo.bhash[inet_bhashfn(port, tcp_hashinfo.bhash_size)];
spin_lock(&head->lock);
/* Does not bother with rcv_saddr checks,
@@ -578,7 +581,7 @@ static int tcp_v6_hash_connect(struct sock *sk)
}
}
tb = inet_bind_bucket_create(tcp_bucket_cachep, head, port);
tb = inet_bind_bucket_create(tcp_hashinfo.bind_bucket_cachep, head, port);
if (!tb) {
spin_unlock(&head->lock);
break;
@@ -613,7 +616,7 @@ ok:
goto out;
}
head = &tcp_bhash[inet_bhashfn(snum, tcp_bhash_size)];
head = &tcp_hashinfo.bhash[inet_bhashfn(snum, tcp_hashinfo.bhash_size)];
tb = inet_sk(sk)->bind_hash;
spin_lock_bh(&head->lock);