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inetpeer: Make inet_getpeer() take an inet_peer_adress_t pointer. 

And make an inet_getpeer_v4() helper, update callers.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2010-11-30 11:54:19 -08:00
parent 582a72da9a
commit b534ecf1cd
5 changed files with 19 additions and 10 deletions
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11
include/net/inetpeer.h
View File

@ -50,7 +50,16 @@ struct inet_peer {
void inet_initpeers(void) __init;
/* can be called with or without local BH being disabled */
struct inet_peer *inet_getpeer(__be32 daddr, int create);
struct inet_peer *inet_getpeer(inet_peer_address_t *daddr, int create);
static inline struct inet_peer *inet_getpeer_v4(__be32 v4daddr, int create)
{
inet_peer_address_t daddr;
daddr.a4 = v4daddr;
daddr.family = AF_INET;
return inet_getpeer(&daddr, create);
}
/* can be called from BH context or outside */
extern void inet_putpeer(struct inet_peer *p);

10
net/ipv4/inetpeer.c
View File

@ -444,7 +444,7 @@ static struct inet_peer_base *family_to_base(int family)
}
/* Called with or without local BH being disabled. */
struct inet_peer *inet_getpeer(__be32 daddr, int create)
struct inet_peer *inet_getpeer(inet_peer_address_t *daddr, int create)
{
struct inet_peer __rcu **stack[PEER_MAXDEPTH], ***stackptr;
struct inet_peer_base *base = family_to_base(AF_INET);
@ -454,7 +454,7 @@ struct inet_peer *inet_getpeer(__be32 daddr, int create)
* Because of a concurrent writer, we might not find an existing entry.
*/
rcu_read_lock_bh();
p = lookup_rcu_bh(daddr, base);
p = lookup_rcu_bh(daddr->a4, base);
rcu_read_unlock_bh();
if (p) {
@ -469,7 +469,7 @@ struct inet_peer *inet_getpeer(__be32 daddr, int create)
* At least, nodes should be hot in our cache.
*/
spin_lock_bh(&base->lock);
p = lookup(daddr, stack, base);
p = lookup(daddr->a4, stack, base);
if (p != peer_avl_empty) {
atomic_inc(&p->refcnt);
spin_unlock_bh(&base->lock);
@ -479,10 +479,10 @@ struct inet_peer *inet_getpeer(__be32 daddr, int create)
}
p = create ? kmem_cache_alloc(peer_cachep, GFP_ATOMIC) : NULL;
if (p) {
p->daddr.a4 = daddr;
p->daddr = *daddr;
atomic_set(&p->refcnt, 1);
atomic_set(&p->rid, 0);
atomic_set(&p->ip_id_count, secure_ip_id(daddr));
atomic_set(&p->ip_id_count, secure_ip_id(daddr->a4));
p->tcp_ts_stamp = 0;
INIT_LIST_HEAD(&p->unused);

2
net/ipv4/ip_fragment.c
View File

@ -141,7 +141,7 @@ static void ip4_frag_init(struct inet_frag_queue *q, void *a)
qp->daddr = arg->iph->daddr;
qp->user = arg->user;
qp->peer = sysctl_ipfrag_max_dist ?
inet_getpeer(arg->iph->saddr, 1) : NULL;
inet_getpeer_v4(arg->iph->saddr, 1) : NULL;
}
static __inline__ void ip4_frag_free(struct inet_frag_queue *q)

2
net/ipv4/route.c
View File

@ -1289,7 +1289,7 @@ void rt_bind_peer(struct rtable *rt, int create)
{
struct inet_peer *peer;
peer = inet_getpeer(rt->rt_dst, create);
peer = inet_getpeer_v4(rt->rt_dst, create);
if (peer && cmpxchg(&rt->peer, NULL, peer) != NULL)
inet_putpeer(peer);

4
net/ipv4/tcp_ipv4.c
View File

@ -1778,7 +1778,7 @@ int tcp_v4_remember_stamp(struct sock *sk)
int release_it = 0;
if (!rt || rt->rt_dst != inet->inet_daddr) {
peer = inet_getpeer(inet->inet_daddr, 1);
peer = inet_getpeer_v4(inet->inet_daddr, 1);
release_it = 1;
} else {
if (!rt->peer)
@ -1804,7 +1804,7 @@ EXPORT_SYMBOL(tcp_v4_remember_stamp);
int tcp_v4_tw_remember_stamp(struct inet_timewait_sock *tw)
{
struct inet_peer *peer = inet_getpeer(tw->tw_daddr, 1);
struct inet_peer *peer = inet_getpeer_v4(tw->tw_daddr, 1);
if (peer) {
const struct tcp_timewait_sock *tcptw = tcp_twsk((struct sock *)tw);