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l2tp: remove unused stats from l2tp_ip socket 

The l2tp_ip socket currently maintains packet/byte stats in its
private socket structure. But these counters aren't exposed to
userspace and so serve no purpose. The counters were also
smp-unsafe. So this patch just gets rid of the stats.

While here, change a couple of internal __u32 variables to u32.

Signed-off-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
James Chapman 2012-04-29 21:48:48 +00:00 committed by David S. Miller
parent de3c7a1827
commit c8657fd50a
1 changed files with 4 additions and 28 deletions
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32
net/l2tp/l2tp_ip.c
View File

@ -32,15 +32,8 @@ struct l2tp_ip_sock {
/* inet_sock has to be the first member of l2tp_ip_sock */
struct inet_sock inet;
__u32 conn_id;
__u32 peer_conn_id;
__u64 tx_packets;
__u64 tx_bytes;
__u64 tx_errors;
__u64 rx_packets;
__u64 rx_bytes;
__u64 rx_errors;
u32 conn_id;
u32 peer_conn_id;
};
static DEFINE_RWLOCK(l2tp_ip_lock);
@ -298,7 +291,6 @@ out_in_use:
static int l2tp_ip_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
{
struct sockaddr_l2tpip *lsa = (struct sockaddr_l2tpip *) uaddr;
struct inet_sock *inet = inet_sk(sk);
int rc;
if (addr_len < sizeof(*lsa))
@ -374,7 +366,6 @@ static int l2tp_ip_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *m
{
struct sk_buff *skb;
int rc;
struct l2tp_ip_sock *lsa = l2tp_ip_sk(sk);
struct inet_sock *inet = inet_sk(sk);
struct rtable *rt = NULL;
struct flowi4 *fl4;
@ -473,14 +464,8 @@ static int l2tp_ip_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *m
rcu_read_unlock();
error:
/* Update stats */
if (rc >= 0) {
lsa->tx_packets++;
lsa->tx_bytes += len;
if (rc >= 0)
rc = len;
} else {
lsa->tx_errors++;
}
out:
release_sock(sk);
@ -498,7 +483,6 @@ static int l2tp_ip_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *m
size_t len, int noblock, int flags, int *addr_len)
{
struct inet_sock *inet = inet_sk(sk);
struct l2tp_ip_sock *lsk = l2tp_ip_sk(sk);
size_t copied = 0;
int err = -EOPNOTSUPP;
struct sockaddr_in *sin = (struct sockaddr_in *)msg->msg_name;
@ -540,15 +524,7 @@ static int l2tp_ip_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *m
done:
skb_free_datagram(sk, skb);
out:
if (err) {
lsk->rx_errors++;
return err;
}
lsk->rx_packets++;
lsk->rx_bytes += copied;
return copied;
return err ? err : copied;
}
static struct proto l2tp_ip_prot = {