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OpenCloudOS-Kernel
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[INET]: Uninline the __inet_inherit_port call. 

This deblats ~200 bytes when ipv6 and dccp are 'y'.

Besides, this will ease compilation issues for patches
I'm working on to make inet hash tables more scalable 
wrt net namespaces.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov 2008-04-17 23:18:15 -07:00 committed by David S. Miller
parent e56d8b8a2e
commit 53083773dc
2 changed files with 17 additions and 13 deletions
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14
include/net/inet_hashtables.h
View File

@ -221,19 +221,7 @@ static inline int inet_sk_listen_hashfn(const struct sock *sk)
} }
/* Caller must disable local BH processing. */ /* Caller must disable local BH processing. */
static inline void __inet_inherit_port(struct sock *sk, struct sock *child) extern void __inet_inherit_port(struct sock *sk, struct sock *child);
{
struct inet_hashinfo *table = sk->sk_prot->h.hashinfo;
const int bhash = inet_bhashfn(inet_sk(child)->num, table->bhash_size);
struct inet_bind_hashbucket *head = &table->bhash[bhash];
struct inet_bind_bucket *tb;
spin_lock(&head->lock);
tb = inet_csk(sk)->icsk_bind_hash;
sk_add_bind_node(child, &tb->owners);
inet_csk(child)->icsk_bind_hash = tb;
spin_unlock(&head->lock);
}
extern void inet_put_port(struct sock *sk); extern void inet_put_port(struct sock *sk);

16
net/ipv4/inet_hashtables.c
View File

@ -92,6 +92,22 @@ void inet_put_port(struct sock *sk)
EXPORT_SYMBOL(inet_put_port); EXPORT_SYMBOL(inet_put_port);
void __inet_inherit_port(struct sock *sk, struct sock *child)
{
struct inet_hashinfo *table = sk->sk_prot->h.hashinfo;
const int bhash = inet_bhashfn(inet_sk(child)->num, table->bhash_size);
struct inet_bind_hashbucket *head = &table->bhash[bhash];
struct inet_bind_bucket *tb;
spin_lock(&head->lock);
tb = inet_csk(sk)->icsk_bind_hash;
sk_add_bind_node(child, &tb->owners);
inet_csk(child)->icsk_bind_hash = tb;
spin_unlock(&head->lock);
}
EXPORT_SYMBOL_GPL(__inet_inherit_port);
/* /*
* This lock without WQ_FLAG_EXCLUSIVE is good on UP and it can be very bad on SMP. * This lock without WQ_FLAG_EXCLUSIVE is good on UP and it can be very bad on SMP.
* Look, when several writers sleep and reader wakes them up, all but one * Look, when several writers sleep and reader wakes them up, all but one