redonkable/remarkable-linux
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ipv4: prepare net initialization for IP accounting

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Some places, that deal with IP statistics already have where to
get a struct net from, but use it directly, without declaring
a separate variable on the stack.

So, save this net on the stack for future IP_XXX_STATS macros.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov 2008-07-16 20:19:08 -07:00 committed by David S. Miller
parent 78ed11a56b
commit 84a3aa000e
3 changed files with 8 additions and 5 deletions
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3
net/ipv4/inet_connection_sock.c
View file

@ -338,9 +338,10 @@ struct dst_entry* inet_csk_route_req(struct sock *sk,
.uli_u = { .ports =
{ .sport = inet_sk(sk)->sport,
.dport = ireq->rmt_port } } };
struct net *net = sock_net(sk);
security_req_classify_flow(req, &fl);
if (ip_route_output_flow(sock_net(sk), &rt, &fl, sk, 0)) {
if (ip_route_output_flow(net, &rt, &fl, sk, 0)) {
IP_INC_STATS_BH(IPSTATS_MIB_OUTNOROUTES);
return NULL;
}

6
net/ipv4/ip_fragment.c
View file

@ -187,8 +187,10 @@ static void ip_evictor(struct net *net)
static void ip_expire(unsigned long arg)
{
struct ipq *qp;
struct net *net;
qp = container_of((struct inet_frag_queue *) arg, struct ipq, q);
net = container_of(qp->q.net, struct net, ipv4.frags);
spin_lock(&qp->q.lock);
@ -202,9 +204,7 @@ static void ip_expire(unsigned long arg)
if ((qp->q.last_in & INET_FRAG_FIRST_IN) && qp->q.fragments != NULL) {
struct sk_buff *head = qp->q.fragments;
struct net *net;
net = container_of(qp->q.net, struct net, ipv4.frags);
/* Send an ICMP "Fragment Reassembly Timeout" message. */
if ((head->dev = dev_get_by_index(net, qp->iif)) != NULL) {
icmp_send(head, ICMP_TIME_EXCEEDED, ICMP_EXC_FRAGTIME, 0);
@ -570,9 +570,9 @@ int ip_defrag(struct sk_buff *skb, u32 user)
struct ipq *qp;
struct net *net;
net = skb->dev ? dev_net(skb->dev) : dev_net(skb->dst->dev);
IP_INC_STATS_BH(IPSTATS_MIB_REASMREQDS);
net = skb->dev ? dev_net(skb->dev) : dev_net(skb->dst->dev);
/* Start by cleaning up the memory. */
if (atomic_read(&net->ipv4.frags.mem) > net->ipv4.frags.high_thresh)
ip_evictor(net);

4
net/ipv4/udp.c
View file

@ -656,8 +656,10 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
.uli_u = { .ports =
{ .sport = inet->sport,
.dport = dport } } };
struct net *net = sock_net(sk);
security_sk_classify_flow(sk, &fl);
err = ip_route_output_flow(sock_net(sk), &rt, &fl, sk, 1);
err = ip_route_output_flow(net, &rt, &fl, sk, 1);
if (err) {
if (err == -ENETUNREACH)
IP_INC_STATS_BH(IPSTATS_MIB_OUTNOROUTES);