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inetpeer: Add v6 peers tree, abstract root properly. 

Add the ipv6 peer tree instance, and adapt remaining
direct references to 'v4_peers' as needed.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2010-11-30 12:12:23 -08:00
parent 0266304502
commit 021e929911
1 changed files with 18 additions and 9 deletions
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27
net/ipv4/inetpeer.c
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@ -79,15 +79,24 @@ static const struct inet_peer peer_fake_node = {
.avl_height = 0
};
static struct inet_peer_base {
struct inet_peer_base {
struct inet_peer __rcu *root;
spinlock_t lock;
int total;
} v4_peers = {
};
static struct inet_peer_base v4_peers = {
.root = peer_avl_empty_rcu,
.lock = __SPIN_LOCK_UNLOCKED(v4_peers.lock),
.total = 0,
};
static struct inet_peer_base v6_peers = {
.root = peer_avl_empty_rcu,
.lock = __SPIN_LOCK_UNLOCKED(v6_peers.lock),
.total = 0,
};
#define PEER_MAXDEPTH 40 /* sufficient for about 2^27 nodes */
/* Exported for sysctl_net_ipv4. */
@ -415,9 +424,14 @@ static void unlink_from_pool(struct inet_peer *p, struct inet_peer_base *base)
inet_putpeer(p);
}
static struct inet_peer_base *family_to_base(int family)
{
return (family == AF_INET ? &v4_peers : &v6_peers);
}
static struct inet_peer_base *peer_to_base(struct inet_peer *p)
{
return &v4_peers;
return family_to_base(p->daddr.family);
}
/* May be called with local BH enabled. */
@ -457,11 +471,6 @@ static int cleanup_once(unsigned long ttl)
return 0;
}
static struct inet_peer_base *family_to_base(int family)
{
return &v4_peers;
}
/* Called with or without local BH being disabled. */
struct inet_peer *inet_getpeer(inet_peer_address_t *daddr, int create)
{
@ -521,7 +530,7 @@ struct inet_peer *inet_getpeer(inet_peer_address_t *daddr, int create)
static int compute_total(void)
{
return v4_peers.total;
return v4_peers.total + v6_peers.total;
}
/* Called with local BH disabled. */