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tcp: Unlink sk from bhash.

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Now we do not use tb->owners and can unlink sockets from bhash.

sk_bind_node/tw_bind_node are available for bhash2 and will be
used in the following patch.

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kuniyuki Iwashima 2023-12-19 09:18:31 +09:00 committed by David S. Miller
parent 8002d44fe8
commit b2cb9f9ef2
3 changed files with 0 additions and 12 deletions
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1
include/net/inet_hashtables.h
View File

@ -88,7 +88,6 @@ struct inet_bind_bucket {
unsigned short fast_sk_family;
bool fast_ipv6_only;
struct hlist_node node;
struct hlist_head owners;
struct hlist_head bhash2;
};

3
net/ipv4/inet_hashtables.c
View File

@ -76,7 +76,6 @@ struct inet_bind_bucket *inet_bind_bucket_create(struct kmem_cache *cachep,
tb->port = snum;
tb->fastreuse = 0;
tb->fastreuseport = 0;
INIT_HLIST_HEAD(&tb->owners);
INIT_HLIST_HEAD(&tb->bhash2);
hlist_add_head(&tb->node, &head->chain);
}
@ -169,7 +168,6 @@ void inet_bind_hash(struct sock *sk, struct inet_bind_bucket *tb,
struct inet_bind2_bucket *tb2, unsigned short port)
{
inet_sk(sk)->inet_num = port;
sk_add_bind_node(sk, &tb->owners);
inet_csk(sk)->icsk_bind_hash = tb;
sk_add_bind2_node(sk, &tb2->owners);
inet_csk(sk)->icsk_bind2_hash = tb2;
@ -192,7 +190,6 @@ static void __inet_put_port(struct sock *sk)
spin_lock(&head->lock);
tb = inet_csk(sk)->icsk_bind_hash;
__sk_del_bind_node(sk);
inet_csk(sk)->icsk_bind_hash = NULL;
inet_sk(sk)->inet_num = 0;

8
net/ipv4/inet_timewait_sock.c
View File

@ -35,7 +35,6 @@ void inet_twsk_bind_unhash(struct inet_timewait_sock *tw,
if (!tb)
return;
__hlist_del(&tw->tw_bind_node);
tw->tw_tb = NULL;
__hlist_del(&tw->tw_bind2_node);
@ -94,12 +93,6 @@ static void inet_twsk_add_node_rcu(struct inet_timewait_sock *tw,
hlist_nulls_add_head_rcu(&tw->tw_node, list);
}
static void inet_twsk_add_bind_node(struct inet_timewait_sock *tw,
struct hlist_head *list)
{
hlist_add_head(&tw->tw_bind_node, list);
}
static void inet_twsk_add_bind2_node(struct inet_timewait_sock *tw,
struct hlist_head *list)
{
@ -133,7 +126,6 @@ void inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk,
tw->tw_tb = icsk->icsk_bind_hash;
WARN_ON(!icsk->icsk_bind_hash);
inet_twsk_add_bind_node(tw, &tw->tw_tb->owners);
tw->tw_tb2 = icsk->icsk_bind2_hash;
WARN_ON(!icsk->icsk_bind2_hash);