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[NET]: Cleanup INET_REFCNT_DEBUG code

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Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnaldo Carvalho de Melo
2005-08-09 19:45:38 -07:00
committed by David S. Miller
parent d13964f449
commit e6848976b7
13 changed files with 86 additions and 74 deletions
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31
net/ipv6/af_inet6.c
View File

@@ -86,26 +86,12 @@ extern void if6_proc_exit(void);
int sysctl_ipv6_bindv6only;
#ifdef INET_REFCNT_DEBUG
atomic_t inet6_sock_nr;
EXPORT_SYMBOL(inet6_sock_nr);
#endif
/* The inetsw table contains everything that inet_create needs to
* build a new socket.
*/
static struct list_head inetsw6[SOCK_MAX];
static DEFINE_SPINLOCK(inetsw6_lock);
static void inet6_sock_destruct(struct sock *sk)
{
inet_sock_destruct(sk);
#ifdef INET_REFCNT_DEBUG
atomic_dec(&inet6_sock_nr);
#endif
}
static __inline__ struct ipv6_pinfo *inet6_sk_generic(struct sock *sk)
{
const int offset = sk->sk_prot->obj_size - sizeof(struct ipv6_pinfo);
@@ -186,7 +172,7 @@ static int inet6_create(struct socket *sock, int protocol)
inet->hdrincl = 1;
}
sk->sk_destruct = inet6_sock_destruct;
sk->sk_destruct = inet_sock_destruct;
sk->sk_family = PF_INET6;
sk->sk_protocol = protocol;
@@ -213,12 +199,17 @@ static int inet6_create(struct socket *sock, int protocol)
inet->pmtudisc = IP_PMTUDISC_DONT;
else
inet->pmtudisc = IP_PMTUDISC_WANT;
/*
* Increment only the relevant sk_prot->socks debug field, this changes
* the previous behaviour of incrementing both the equivalent to
* answer->prot->socks (inet6_sock_nr) and inet_sock_nr.
*
* This allows better debug granularity as we'll know exactly how many
* UDPv6, TCPv6, etc socks were allocated, not the sum of all IPv6
* transport protocol socks. -acme
*/
sk_refcnt_debug_inc(sk);
#ifdef INET_REFCNT_DEBUG
atomic_inc(&inet6_sock_nr);
atomic_inc(&inet_sock_nr);
#endif
if (inet->num) {
/* It assumes that any protocol which allows
* the user to assign a number at socket

15
net/ipv6/ipv6_sockglue.c
View File

@@ -163,6 +163,13 @@ int ipv6_setsockopt(struct sock *sk, int level, int optname,
fl6_free_socklist(sk);
ipv6_sock_mc_close(sk);
/*
* Sock is moving from IPv6 to IPv4 (sk_prot), so
* remove it from the refcnt debug socks count in the
* original family...
*/
sk_refcnt_debug_dec(sk);
if (sk->sk_protocol == IPPROTO_TCP) {
struct tcp_sock *tp = tcp_sk(sk);
@@ -192,9 +199,11 @@ int ipv6_setsockopt(struct sock *sk, int level, int optname,
kfree_skb(pktopt);
sk->sk_destruct = inet_sock_destruct;
#ifdef INET_REFCNT_DEBUG
atomic_dec(&inet6_sock_nr);
#endif
/*
* ... and add it to the refcnt debug socks count
* in the new family. -acme
*/
sk_refcnt_debug_inc(sk);
module_put(THIS_MODULE);
retv = 0;
break;

18
net/ipv6/tcp_ipv6.c
View File

@@ -1407,12 +1407,11 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
newnp->mcast_oif = tcp_v6_iif(skb);
newnp->mcast_hops = skb->nh.ipv6h->hop_limit;
/* Charge newly allocated IPv6 socket. Though it is mapped,
* it is IPv6 yet.
/*
* No need to charge this sock to the relevant IPv6 refcnt debug socks count
* here, tcp_create_openreq_child now does this for us, see the comment in
* that function for the gory details. -acme
*/
#ifdef INET_REFCNT_DEBUG
atomic_inc(&inet6_sock_nr);
#endif
/* It is tricky place. Until this moment IPv4 tcp
worked with IPv6 af_tcp.af_specific.
@@ -1467,10 +1466,11 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
if (newsk == NULL)
goto out;
/* Charge newly allocated IPv6 socket */
#ifdef INET_REFCNT_DEBUG
atomic_inc(&inet6_sock_nr);
#endif
/*
* No need to charge this sock to the relevant IPv6 refcnt debug socks
* count here, tcp_create_openreq_child now does this for us, see the
* comment in that function for the gory details. -acme
*/
ip6_dst_store(newsk, dst, NULL);
newsk->sk_route_caps = dst->dev->features &