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authorKuniyuki Iwashima <kuniyu@amazon.com>2023-12-19 01:18:31 +0100
committerDavid S. Miller <davem@davemloft.net>2023-12-22 23:15:35 +0100
commitb2cb9f9ef240b4afaa1838b74fad077f17682f61 (patch)
tree7e0ee9a5359dd511850c213c50031a24e35c119e /net/ipv4
parenttcp: Check hlist_empty(&tb->bhash2) instead of hlist_empty(&tb->owners). (diff)
downloadlinux-b2cb9f9ef240b4afaa1838b74fad077f17682f61.tar.xz
linux-b2cb9f9ef240b4afaa1838b74fad077f17682f61.zip
tcp: Unlink sk from bhash.
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>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/inet_hashtables.c3
-rw-r--r--net/ipv4/inet_timewait_sock.c8
2 files changed, 0 insertions, 11 deletions
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 355cc6c0eaab..5c3ad37624f1 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -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;
diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
index 466d4faa9272..547583a87bd3 100644
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -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);