X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=include%2Fnet%2Finet6_hashtables.h;h=25f708ff020e9b158e26fe95c56b2706774c8bdf;hb=d195ea4b1456192abe780fd773778cbe9f6d77ea;hp=03df3b157960cb711bccf0d44fab11127dde1b3b;hpb=ddbf9ef385bfbef897210733abfb73cb9b94ecec;p=powerpc.git

diff --git a/include/net/inet6_hashtables.h b/include/net/inet6_hashtables.h
index 03df3b1579..25f708ff02 100644
--- a/include/net/inet6_hashtables.h
+++ b/include/net/inet6_hashtables.h
@@ -26,19 +26,18 @@
 struct inet_hashinfo;
 
 /* I have no idea if this is a good hash for v6 or not. -DaveM */
-static inline int inet6_ehashfn(const struct in6_addr *laddr, const u16 lport,
-				const struct in6_addr *faddr, const u16 fport,
-				const int ehash_size)
+static inline unsigned int inet6_ehashfn(const struct in6_addr *laddr, const u16 lport,
+				const struct in6_addr *faddr, const u16 fport)
 {
-	int hashent = (lport ^ fport);
+	unsigned int hashent = (lport ^ fport);
 
 	hashent ^= (laddr->s6_addr32[3] ^ faddr->s6_addr32[3]);
 	hashent ^= hashent >> 16;
 	hashent ^= hashent >> 8;
-	return (hashent & (ehash_size - 1));
+	return hashent;
 }
 
-static inline int inet6_sk_ehashfn(const struct sock *sk, const int ehash_size)
+static inline int inet6_sk_ehashfn(const struct sock *sk)
 {
 	const struct inet_sock *inet = inet_sk(sk);
 	const struct ipv6_pinfo *np = inet6_sk(sk);
@@ -46,7 +45,33 @@ static inline int inet6_sk_ehashfn(const struct sock *sk, const int ehash_size)
 	const struct in6_addr *faddr = &np->daddr;
 	const __u16 lport = inet->num;
 	const __u16 fport = inet->dport;
-	return inet6_ehashfn(laddr, lport, faddr, fport, ehash_size);
+	return inet6_ehashfn(laddr, lport, faddr, fport);
+}
+
+static inline void __inet6_hash(struct inet_hashinfo *hashinfo,
+				struct sock *sk)
+{
+	struct hlist_head *list;
+	rwlock_t *lock;
+
+	BUG_TRAP(sk_unhashed(sk));
+
+	if (sk->sk_state == TCP_LISTEN) {
+		list = &hashinfo->listening_hash[inet_sk_listen_hashfn(sk)];
+		lock = &hashinfo->lhash_lock;
+		inet_listen_wlock(hashinfo);
+	} else {
+		unsigned int hash;
+		sk->sk_hash = hash = inet6_sk_ehashfn(sk);
+		hash &= (hashinfo->ehash_size - 1);
+		list = &hashinfo->ehash[hash].chain;
+		lock = &hashinfo->ehash[hash].lock;
+		write_lock(lock);
+	}
+
+	__sk_add_node(sk, list);
+	sock_prot_inc_use(sk->sk_prot);
+	write_unlock(lock);
 }
 
 /*
@@ -69,14 +94,14 @@ static inline struct sock *
 	/* Optimize here for direct hit, only listening connections can
 	 * have wildcards anyways.
 	 */
-	const int hash = inet6_ehashfn(daddr, hnum, saddr, sport,
-				       hashinfo->ehash_size);
-	struct inet_ehash_bucket *head = &hashinfo->ehash[hash];
+	unsigned int hash = inet6_ehashfn(daddr, hnum, saddr, sport);
+	struct inet_ehash_bucket *head = inet_ehash_bucket(hashinfo, hash);
 
+	prefetch(head->chain.first);
 	read_lock(&head->lock);
 	sk_for_each(sk, node, &head->chain) {
 		/* For IPV6 do the cheaper port and family tests first. */
-		if (INET6_MATCH(sk, saddr, daddr, ports, dif))
+		if (INET6_MATCH(sk, hash, saddr, daddr, ports, dif))
 			goto hit; /* You sunk my battleship! */
 	}
 	/* Must check for a TIME_WAIT'er before going to listener hash. */
@@ -85,10 +110,10 @@ static inline struct sock *
 
 		if(*((__u32 *)&(tw->tw_dport))	== ports	&&
 		   sk->sk_family		== PF_INET6) {
-			const struct tcp6_timewait_sock *tcp6tw = tcp6_twsk(sk);
+			const struct inet6_timewait_sock *tw6 = inet6_twsk(sk);
 
-			if (ipv6_addr_equal(&tcp6tw->tw_v6_daddr, saddr)	&&
-			    ipv6_addr_equal(&tcp6tw->tw_v6_rcv_saddr, daddr)	&&
+			if (ipv6_addr_equal(&tw6->tw_v6_daddr, saddr)	&&
+			    ipv6_addr_equal(&tw6->tw_v6_rcv_saddr, daddr)	&&
 			    (!sk->sk_bound_dev_if || sk->sk_bound_dev_if == dif))
 				goto hit;
 		}