[INET]: Consolidate inet(6)_hash_connect.
These two functions are the same except for what they call
to "check_established" and "hash" for a socket.
This saves half-a-kilo for ipv4 and ipv6.
add/remove: 1/0 grow/shrink: 1/4 up/down: 582/-1128 (-546)
function old new delta
__inet_hash_connect - 577 +577
arp_ignore 108 113 +5
static.hint 8 4 -4
rt_worker_func 376 372 -4
inet6_hash_connect 584 25 -559
inet_hash_connect 586 25 -561
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 619c63c..b93d40f 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -348,11 +348,11 @@
}
EXPORT_SYMBOL_GPL(__inet_hash);
-/*
- * Bind a port for a connect operation and hash it.
- */
-int inet_hash_connect(struct inet_timewait_death_row *death_row,
- struct sock *sk)
+int __inet_hash_connect(struct inet_timewait_death_row *death_row,
+ struct sock *sk,
+ int (*check_established)(struct inet_timewait_death_row *,
+ struct sock *, __u16, struct inet_timewait_sock **),
+ void (*hash)(struct inet_hashinfo *, struct sock *))
{
struct inet_hashinfo *hinfo = death_row->hashinfo;
const unsigned short snum = inet_sk(sk)->num;
@@ -385,9 +385,8 @@
BUG_TRAP(!hlist_empty(&tb->owners));
if (tb->fastreuse >= 0)
goto next_port;
- if (!__inet_check_established(death_row,
- sk, port,
- &tw))
+ if (!check_established(death_row, sk,
+ port, &tw))
goto ok;
goto next_port;
}
@@ -415,7 +414,7 @@
inet_bind_hash(sk, tb, port);
if (sk_unhashed(sk)) {
inet_sk(sk)->sport = htons(port);
- __inet_hash_nolisten(hinfo, sk);
+ hash(hinfo, sk);
}
spin_unlock(&head->lock);
@@ -432,17 +431,28 @@
tb = inet_csk(sk)->icsk_bind_hash;
spin_lock_bh(&head->lock);
if (sk_head(&tb->owners) == sk && !sk->sk_bind_node.next) {
- __inet_hash_nolisten(hinfo, sk);
+ hash(hinfo, sk);
spin_unlock_bh(&head->lock);
return 0;
} else {
spin_unlock(&head->lock);
/* No definite answer... Walk to established hash table */
- ret = __inet_check_established(death_row, sk, snum, NULL);
+ ret = check_established(death_row, sk, snum, NULL);
out:
local_bh_enable();
return ret;
}
}
+EXPORT_SYMBOL_GPL(__inet_hash_connect);
+
+/*
+ * Bind a port for a connect operation and hash it.
+ */
+int inet_hash_connect(struct inet_timewait_death_row *death_row,
+ struct sock *sk)
+{
+ return __inet_hash_connect(death_row, sk,
+ __inet_check_established, __inet_hash_nolisten);
+}
EXPORT_SYMBOL_GPL(inet_hash_connect);