diff options
author | Arnaldo Carvalho de Melo <acme@ghostprotocols.net> | 2005-08-09 20:07:13 -0700 |
---|---|---|
committer | David S. Miller <davem@sunset.davemloft.net> | 2005-08-29 15:40:29 -0700 |
commit | 2d8c4ce51903636ce0f60addc8134aa50ab8fa76 (patch) | |
tree | 1ea4d4faf831b832489b30b13d8910777020feed /net | |
parent | ff21d5774b4a186c98be6398eacde75d896db804 (diff) |
[INET]: Generalise tcp_bind_hash & tcp_inherit_port
This required moving tcp_bucket_cachep to inet_hashinfo.
Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r-- | net/ipv4/inet_hashtables.c | 40 | ||||
-rw-r--r-- | net/ipv4/tcp.c | 4 | ||||
-rw-r--r-- | net/ipv4/tcp_ipv4.c | 68 | ||||
-rw-r--r-- | net/ipv6/tcp_ipv6.c | 6 |
4 files changed, 47 insertions, 71 deletions
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c index 343a890bd61..33d6cbe32cd 100644 --- a/net/ipv4/inet_hashtables.c +++ b/net/ipv4/inet_hashtables.c @@ -14,6 +14,7 @@ */ #include <linux/config.h> +#include <linux/module.h> #include <linux/slab.h> #include <net/inet_hashtables.h> @@ -49,3 +50,42 @@ void inet_bind_bucket_destroy(kmem_cache_t *cachep, struct inet_bind_bucket *tb) kmem_cache_free(cachep, tb); } } + +void inet_bind_hash(struct sock *sk, struct inet_bind_bucket *tb, + const unsigned short snum) +{ + struct inet_sock *inet = inet_sk(sk); + inet->num = snum; + sk_add_bind_node(sk, &tb->owners); + inet->bind_hash = tb; +} + +EXPORT_SYMBOL(inet_bind_hash); + +/* + * Get rid of any references to a local port held by the given sock. + */ +static void __inet_put_port(struct inet_hashinfo *hashinfo, struct sock *sk) +{ + struct inet_sock *inet = inet_sk(sk); + const int bhash = inet_bhashfn(inet->num, hashinfo->bhash_size); + struct inet_bind_hashbucket *head = &hashinfo->bhash[bhash]; + struct inet_bind_bucket *tb; + + spin_lock(&head->lock); + tb = inet->bind_hash; + __sk_del_bind_node(sk); + inet->bind_hash = NULL; + inet->num = 0; + inet_bind_bucket_destroy(hashinfo->bind_bucket_cachep, tb); + spin_unlock(&head->lock); +} + +void inet_put_port(struct inet_hashinfo *hashinfo, struct sock *sk) +{ + local_bh_disable(); + __inet_put_port(hashinfo, sk); + local_bh_enable(); +} + +EXPORT_SYMBOL(inet_put_port); diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index e54a410ca70..38c04c1a754 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -271,10 +271,6 @@ int sysctl_tcp_fin_timeout = TCP_FIN_TIMEOUT; DEFINE_SNMP_STAT(struct tcp_mib, tcp_statistics); -kmem_cache_t *tcp_bucket_cachep; - -EXPORT_SYMBOL_GPL(tcp_bucket_cachep); - kmem_cache_t *tcp_timewait_cachep; atomic_t tcp_orphan_count = ATOMIC_INIT(0); diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 10a9b3ae344..40fe4f5fca1 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -104,37 +104,6 @@ struct inet_hashinfo __cacheline_aligned tcp_hashinfo = { int sysctl_local_port_range[2] = { 1024, 4999 }; int tcp_port_rover = 1024 - 1; -/* Caller must disable local BH processing. */ -static __inline__ void __tcp_inherit_port(struct sock *sk, struct sock *child) -{ - struct inet_bind_hashbucket *head = - &tcp_bhash[inet_bhashfn(inet_sk(child)->num, - tcp_bhash_size)]; - struct inet_bind_bucket *tb; - - spin_lock(&head->lock); - tb = inet_sk(sk)->bind_hash; - sk_add_bind_node(child, &tb->owners); - inet_sk(child)->bind_hash = tb; - spin_unlock(&head->lock); -} - -inline void tcp_inherit_port(struct sock *sk, struct sock *child) -{ - local_bh_disable(); - __tcp_inherit_port(sk, child); - local_bh_enable(); -} - -void tcp_bind_hash(struct sock *sk, struct inet_bind_bucket *tb, - const unsigned short snum) -{ - struct inet_sock *inet = inet_sk(sk); - inet->num = snum; - sk_add_bind_node(sk, &tb->owners); - inet->bind_hash = tb; -} - static inline int tcp_bind_conflict(struct sock *sk, struct inet_bind_bucket *tb) { const u32 sk_rcv_saddr = tcp_v4_rcv_saddr(sk); @@ -248,7 +217,7 @@ tb_not_found: tb->fastreuse = 0; success: if (!inet_sk(sk)->bind_hash) - tcp_bind_hash(sk, tb, snum); + inet_bind_hash(sk, tb, snum); BUG_TRAP(inet_sk(sk)->bind_hash == tb); ret = 0; @@ -259,32 +228,6 @@ fail: return ret; } -/* Get rid of any references to a local port held by the - * given sock. - */ -static void __tcp_put_port(struct sock *sk) -{ - struct inet_sock *inet = inet_sk(sk); - struct inet_bind_hashbucket *head = &tcp_bhash[inet_bhashfn(inet->num, - tcp_bhash_size)]; - struct inet_bind_bucket *tb; - - spin_lock(&head->lock); - tb = inet->bind_hash; - __sk_del_bind_node(sk); - inet->bind_hash = NULL; - inet->num = 0; - inet_bind_bucket_destroy(tcp_bucket_cachep, tb); - spin_unlock(&head->lock); -} - -void tcp_put_port(struct sock *sk) -{ - local_bh_disable(); - __tcp_put_port(sk); - local_bh_enable(); -} - /* This lock without WQ_FLAG_EXCLUSIVE is good on UP and it can be very bad on SMP. * Look, when several writers sleep and reader wakes them up, all but one * immediately hit write lock and grab all the cpus. Exclusive sleep solves @@ -678,7 +621,7 @@ ok: hint += i; /* Head lock still held and bh's disabled */ - tcp_bind_hash(sk, tb, port); + inet_bind_hash(sk, tb, port); if (sk_unhashed(sk)) { inet_sk(sk)->sport = htons(port); __tcp_v4_hash(sk, 0); @@ -1537,7 +1480,7 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb, tcp_initialize_rcv_mss(newsk); __tcp_v4_hash(newsk, 0); - __tcp_inherit_port(sk, newsk); + __inet_inherit_port(&tcp_hashinfo, sk, newsk); return newsk; @@ -1942,7 +1885,7 @@ int tcp_v4_destroy_sock(struct sock *sk) /* Clean up a referenced TCP bind bucket. */ if (inet_sk(sk)->bind_hash) - tcp_put_port(sk); + inet_put_port(&tcp_hashinfo, sk); /* * If sendmsg cached page exists, toss it. @@ -2486,14 +2429,11 @@ void __init tcp_v4_init(struct net_proto_family *ops) } EXPORT_SYMBOL(ipv4_specific); -EXPORT_SYMBOL(tcp_bind_hash); EXPORT_SYMBOL(inet_bind_bucket_create); EXPORT_SYMBOL(tcp_hashinfo); -EXPORT_SYMBOL(tcp_inherit_port); EXPORT_SYMBOL(tcp_listen_wlock); EXPORT_SYMBOL(tcp_port_rover); EXPORT_SYMBOL(tcp_prot); -EXPORT_SYMBOL(tcp_put_port); EXPORT_SYMBOL(tcp_unhash); EXPORT_SYMBOL(tcp_v4_conn_request); EXPORT_SYMBOL(tcp_v4_connect); diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index a8ca7ba06c1..bfbedb56bce 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -205,7 +205,7 @@ tb_not_found: success: if (!inet_sk(sk)->bind_hash) - tcp_bind_hash(sk, tb, snum); + inet_bind_hash(sk, tb, snum); BUG_TRAP(inet_sk(sk)->bind_hash == tb); ret = 0; @@ -597,7 +597,7 @@ ok: hint += i; /* Head lock still held and bh's disabled */ - tcp_bind_hash(sk, tb, port); + inet_bind_hash(sk, tb, port); if (sk_unhashed(sk)) { inet_sk(sk)->sport = htons(port); __tcp_v6_hash(sk); @@ -1536,7 +1536,7 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, newinet->daddr = newinet->saddr = newinet->rcv_saddr = LOOPBACK4_IPV6; __tcp_v6_hash(newsk); - tcp_inherit_port(sk, newsk); + inet_inherit_port(&tcp_hashinfo, sk, newsk); return newsk; |