From: Pavel Emelyanov <xemul@openvz.org>
Date: Tue, 17 Jun 2008 00:13:08 +0000 (-0700)
Subject: inet: add struct net argument to inet_lhashfn
X-Git-Tag: v3.12-rc1~19957^2~320
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2086a65078bd24682bdcf413d9c91d81988b8359;p=kernel%2Fkernel-generic.git

inet: add struct net argument to inet_lhashfn

Listening-on-one-port sockets in many namespaces produce long
chains in the listening_hash-es, so prepare the inet_lhashfn to
take struct net into account.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index 61dd331..26336cd 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -211,14 +211,14 @@ extern void inet_bind_hash(struct sock *sk, struct inet_bind_bucket *tb,
 			   const unsigned short snum);
 
 /* These can have wildcards, don't try too hard. */
-static inline int inet_lhashfn(const unsigned short num)
+static inline int inet_lhashfn(struct net *net, const unsigned short num)
 {
 	return num & (INET_LHTABLE_SIZE - 1);
 }
 
 static inline int inet_sk_listen_hashfn(const struct sock *sk)
 {
-	return inet_lhashfn(inet_sk(sk)->num);
+	return inet_lhashfn(sock_net(sk), inet_sk(sk)->num);
 }
 
 /* Caller must disable local BH processing. */
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index dc1b78d..4f597b3 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -194,7 +194,7 @@ struct sock *__inet_lookup_listener(struct net *net,
 	const struct hlist_head *head;
 
 	read_lock(&hashinfo->lhash_lock);
-	head = &hashinfo->listening_hash[inet_lhashfn(hnum)];
+	head = &hashinfo->listening_hash[inet_lhashfn(net, hnum)];
 	if (!hlist_empty(head)) {
 		const struct inet_sock *inet = inet_sk((sk = __sk_head(head)));
 
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index 580014a..b940156 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -104,7 +104,8 @@ struct sock *inet6_lookup_listener(struct net *net,
 	int score, hiscore = 0;
 
 	read_lock(&hashinfo->lhash_lock);
-	sk_for_each(sk, node, &hashinfo->listening_hash[inet_lhashfn(hnum)]) {
+	sk_for_each(sk, node,
+			&hashinfo->listening_hash[inet_lhashfn(net, hnum)]) {
 		if (net_eq(sock_net(sk), net) && inet_sk(sk)->num == hnum &&
 				sk->sk_family == PF_INET6) {
 			const struct ipv6_pinfo *np = inet6_sk(sk);