aboutsummaryrefslogtreecommitdiff
path: root/net/core
diff options
context:
space:
mode:
Diffstat (limited to 'net/core')
-rw-r--r--net/core/datagram.c5
-rw-r--r--net/core/dev.c58
-rw-r--r--net/core/neighbour.c50
-rw-r--r--net/core/net-sysfs.c7
-rw-r--r--net/core/net_namespace.c2
-rw-r--r--net/core/netpoll.c5
-rw-r--r--net/core/pktgen.c9
-rw-r--r--net/core/skbuff.c3
-rw-r--r--net/core/sock.c3
-rw-r--r--net/core/sysctl_net_core.c34
10 files changed, 105 insertions, 71 deletions
diff --git a/net/core/datagram.c b/net/core/datagram.c
index ee631843c2f..5e2ac0c4b07 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -209,7 +209,7 @@ struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags,
void skb_free_datagram(struct sock *sk, struct sk_buff *skb)
{
kfree_skb(skb);
- sk_mem_reclaim(sk);
+ sk_mem_reclaim_partial(sk);
}
/**
@@ -248,8 +248,7 @@ int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags)
spin_unlock_bh(&sk->sk_receive_queue.lock);
}
- kfree_skb(skb);
- sk_mem_reclaim(sk);
+ skb_free_datagram(sk, skb);
return err;
}
diff --git a/net/core/dev.c b/net/core/dev.c
index 9174c77d311..e0dc67a789b 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -924,10 +924,15 @@ int dev_change_name(struct net_device *dev, const char *newname)
strlcpy(dev->name, newname, IFNAMSIZ);
rollback:
- ret = device_rename(&dev->dev, dev->name);
- if (ret) {
- memcpy(dev->name, oldname, IFNAMSIZ);
- return ret;
+ /* For now only devices in the initial network namespace
+ * are in sysfs.
+ */
+ if (net == &init_net) {
+ ret = device_rename(&dev->dev, dev->name);
+ if (ret) {
+ memcpy(dev->name, oldname, IFNAMSIZ);
+ return ret;
+ }
}
write_lock_bh(&dev_base_lock);
@@ -2251,8 +2256,10 @@ int netif_receive_skb(struct sk_buff *skb)
rcu_read_lock();
/* Don't receive packets in an exiting network namespace */
- if (!net_alive(dev_net(skb->dev)))
+ if (!net_alive(dev_net(skb->dev))) {
+ kfree_skb(skb);
goto out;
+ }
#ifdef CONFIG_NET_CLS_ACT
if (skb->tc_verd & TC_NCLS) {
@@ -2371,7 +2378,7 @@ EXPORT_SYMBOL(__napi_schedule);
static void net_rx_action(struct softirq_action *h)
{
struct list_head *list = &__get_cpu_var(softnet_data).poll_list;
- unsigned long start_time = jiffies;
+ unsigned long time_limit = jiffies + 2;
int budget = netdev_budget;
void *have;
@@ -2382,13 +2389,10 @@ static void net_rx_action(struct softirq_action *h)
int work, weight;
/* If softirq window is exhuasted then punt.
- *
- * Note that this is a slight policy change from the
- * previous NAPI code, which would allow up to 2
- * jiffies to pass before breaking out. The test
- * used to be "jiffies - start_time > 1".
+ * Allow this to run for 2 jiffies since which will allow
+ * an average latency of 1.5/HZ.
*/
- if (unlikely(budget <= 0 || jiffies != start_time))
+ if (unlikely(budget <= 0 || time_after(jiffies, time_limit)))
goto softnet_break;
local_irq_enable();
@@ -4463,6 +4467,15 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
if (dev->features & NETIF_F_NETNS_LOCAL)
goto out;
+#ifdef CONFIG_SYSFS
+ /* Don't allow real devices to be moved when sysfs
+ * is enabled.
+ */
+ err = -EINVAL;
+ if (dev->dev.parent)
+ goto out;
+#endif
+
/* Ensure the device has been registrered */
err = -EINVAL;
if (dev->reg_state != NETREG_REGISTERED)
@@ -4520,6 +4533,8 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
*/
dev_addr_discard(dev);
+ netdev_unregister_kobject(dev);
+
/* Actually switch the network namespace */
dev_net_set(dev, net);
@@ -4536,7 +4551,6 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
}
/* Fixup kobjects */
- netdev_unregister_kobject(dev);
err = netdev_register_kobject(dev);
WARN_ON(err);
@@ -4843,6 +4857,12 @@ static void __net_exit default_device_exit(struct net *net)
if (dev->features & NETIF_F_NETNS_LOCAL)
continue;
+ /* Delete virtual devices */
+ if (dev->rtnl_link_ops && dev->rtnl_link_ops->dellink) {
+ dev->rtnl_link_ops->dellink(dev);
+ continue;
+ }
+
/* Push remaing network devices to init_net */
snprintf(fb_name, IFNAMSIZ, "dev%d", dev->ifindex);
err = dev_change_net_namespace(dev, &init_net, fb_name);
@@ -4889,6 +4909,18 @@ static int __init net_dev_init(void)
if (register_pernet_subsys(&netdev_net_ops))
goto out;
+ /* The loopback device is special if any other network devices
+ * is present in a network namespace the loopback device must
+ * be present. Since we now dynamically allocate and free the
+ * loopback device ensure this invariant is maintained by
+ * keeping the loopback device as the first device on the
+ * list of network devices. Ensuring the loopback devices
+ * is the first device that appears and the last network device
+ * that disappears.
+ */
+ if (register_pernet_device(&loopback_net_ops))
+ goto out;
+
if (register_pernet_device(&default_device_ops))
goto out;
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 1dc728b3858..d9bbe010e0e 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -1340,7 +1340,6 @@ struct neigh_parms *neigh_parms_alloc(struct net_device *dev,
if (p) {
p->tbl = tbl;
atomic_set(&p->refcnt, 1);
- INIT_RCU_HEAD(&p->rcu_head);
p->reachable_time =
neigh_rand_reach_time(p->base_reachable_time);
@@ -1412,7 +1411,6 @@ void neigh_table_init_no_netlink(struct neigh_table *tbl)
tbl->parms.net = &init_net;
#endif
atomic_set(&tbl->parms.refcnt, 1);
- INIT_RCU_HEAD(&tbl->parms.rcu_head);
tbl->parms.reachable_time =
neigh_rand_reach_time(tbl->parms.base_reachable_time);
@@ -2568,128 +2566,128 @@ static struct neigh_sysctl_table {
.procname = "mcast_solicit",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_NEIGH_UCAST_SOLICIT,
.procname = "ucast_solicit",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_NEIGH_APP_SOLICIT,
.procname = "app_solicit",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.procname = "retrans_time",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec_userhz_jiffies,
+ .proc_handler = proc_dointvec_userhz_jiffies,
},
{
.ctl_name = NET_NEIGH_REACHABLE_TIME,
.procname = "base_reachable_time",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- .strategy = &sysctl_jiffies,
+ .proc_handler = proc_dointvec_jiffies,
+ .strategy = sysctl_jiffies,
},
{
.ctl_name = NET_NEIGH_DELAY_PROBE_TIME,
.procname = "delay_first_probe_time",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- .strategy = &sysctl_jiffies,
+ .proc_handler = proc_dointvec_jiffies,
+ .strategy = sysctl_jiffies,
},
{
.ctl_name = NET_NEIGH_GC_STALE_TIME,
.procname = "gc_stale_time",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- .strategy = &sysctl_jiffies,
+ .proc_handler = proc_dointvec_jiffies,
+ .strategy = sysctl_jiffies,
},
{
.ctl_name = NET_NEIGH_UNRES_QLEN,
.procname = "unres_qlen",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_NEIGH_PROXY_QLEN,
.procname = "proxy_qlen",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.procname = "anycast_delay",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec_userhz_jiffies,
+ .proc_handler = proc_dointvec_userhz_jiffies,
},
{
.procname = "proxy_delay",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec_userhz_jiffies,
+ .proc_handler = proc_dointvec_userhz_jiffies,
},
{
.procname = "locktime",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec_userhz_jiffies,
+ .proc_handler = proc_dointvec_userhz_jiffies,
},
{
.ctl_name = NET_NEIGH_RETRANS_TIME_MS,
.procname = "retrans_time_ms",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec_ms_jiffies,
- .strategy = &sysctl_ms_jiffies,
+ .proc_handler = proc_dointvec_ms_jiffies,
+ .strategy = sysctl_ms_jiffies,
},
{
.ctl_name = NET_NEIGH_REACHABLE_TIME_MS,
.procname = "base_reachable_time_ms",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec_ms_jiffies,
- .strategy = &sysctl_ms_jiffies,
+ .proc_handler = proc_dointvec_ms_jiffies,
+ .strategy = sysctl_ms_jiffies,
},
{
.ctl_name = NET_NEIGH_GC_INTERVAL,
.procname = "gc_interval",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- .strategy = &sysctl_jiffies,
+ .proc_handler = proc_dointvec_jiffies,
+ .strategy = sysctl_jiffies,
},
{
.ctl_name = NET_NEIGH_GC_THRESH1,
.procname = "gc_thresh1",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_NEIGH_GC_THRESH2,
.procname = "gc_thresh2",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_NEIGH_GC_THRESH3,
.procname = "gc_thresh3",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{},
},
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 92d6b946731..85cb8bdcfb8 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -476,6 +476,10 @@ void netdev_unregister_kobject(struct net_device * net)
struct device *dev = &(net->dev);
kobject_get(&dev->kobj);
+
+ if (dev_net(net) != &init_net)
+ return;
+
device_del(dev);
}
@@ -501,6 +505,9 @@ int netdev_register_kobject(struct net_device *net)
#endif
#endif /* CONFIG_SYSFS */
+ if (dev_net(net) != &init_net)
+ return 0;
+
return device_add(dev);
}
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 1895a4ca9c4..55cffad2f32 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -47,7 +47,6 @@ static __net_init int setup_net(struct net *net)
goto out;
ng->len = INITIAL_NET_GEN_PTRS;
- INIT_RCU_HEAD(&ng->rcu);
rcu_assign_pointer(net->gen, ng);
error = 0;
@@ -478,7 +477,6 @@ int net_assign_generic(struct net *net, int id, void *data)
*/
ng->len = id;
- INIT_RCU_HEAD(&ng->rcu);
memcpy(&ng->ptr, &old_ng->ptr, old_ng->len);
rcu_assign_pointer(net->gen, ng);
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 6c7af390be0..34f5d072f16 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -553,7 +553,6 @@ out:
void netpoll_print_options(struct netpoll *np)
{
- DECLARE_MAC_BUF(mac);
printk(KERN_INFO "%s: local port %d\n",
np->name, np->local_port);
printk(KERN_INFO "%s: local IP %d.%d.%d.%d\n",
@@ -564,8 +563,8 @@ void netpoll_print_options(struct netpoll *np)
np->name, np->remote_port);
printk(KERN_INFO "%s: remote IP %d.%d.%d.%d\n",
np->name, HIPQUAD(np->remote_ip));
- printk(KERN_INFO "%s: remote ethernet address %s\n",
- np->name, print_mac(mac, np->remote_mac));
+ printk(KERN_INFO "%s: remote ethernet address %pM\n",
+ np->name, np->remote_mac);
}
int netpoll_parse_options(struct netpoll *np, char *opt)
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index a47f5bad110..fa4973bf73e 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -509,7 +509,6 @@ static int pktgen_if_show(struct seq_file *seq, void *v)
__u64 sa;
__u64 stopped;
__u64 now = getCurUs();
- DECLARE_MAC_BUF(mac);
seq_printf(seq,
"Params: count %llu min_pkt_size: %u max_pkt_size: %u\n",
@@ -554,12 +553,12 @@ static int pktgen_if_show(struct seq_file *seq, void *v)
seq_puts(seq, " src_mac: ");
- seq_printf(seq, "%s ",
- print_mac(mac, is_zero_ether_addr(pkt_dev->src_mac) ?
- pkt_dev->odev->dev_addr : pkt_dev->src_mac));
+ seq_printf(seq, "%pM ",
+ is_zero_ether_addr(pkt_dev->src_mac) ?
+ pkt_dev->odev->dev_addr : pkt_dev->src_mac);
seq_printf(seq, "dst_mac: ");
- seq_printf(seq, "%s\n", print_mac(mac, pkt_dev->dst_mac));
+ seq_printf(seq, "%pM\n", pkt_dev->dst_mac);
seq_printf(seq,
" udp_src_min: %d udp_src_max: %d udp_dst_min: %d udp_dst_max: %d\n",
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index ebb6b94f8af..f24a4951008 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -501,7 +501,7 @@ static void __copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
new->network_header = old->network_header;
new->mac_header = old->mac_header;
new->dst = dst_clone(old->dst);
-#ifdef CONFIG_INET
+#ifdef CONFIG_XFRM
new->sp = secpath_get(old->sp);
#endif
memcpy(new->cb, old->cb, sizeof(old->cb));
@@ -556,6 +556,7 @@ static struct sk_buff *__skb_clone(struct sk_buff *n, struct sk_buff *skb)
C(truesize);
#if defined(CONFIG_MAC80211) || defined(CONFIG_MAC80211_MODULE)
C(do_not_encrypt);
+ C(requeue);
#endif
atomic_set(&n->users, 1);
diff --git a/net/core/sock.c b/net/core/sock.c
index 5e2a3132a8c..ded1eb5d2fd 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -2042,7 +2042,8 @@ int proto_register(struct proto *prot, int alloc_slab)
if (alloc_slab) {
prot->slab = kmem_cache_create(prot->name, prot->obj_size, 0,
- SLAB_HWCACHE_ALIGN, NULL);
+ SLAB_HWCACHE_ALIGN | prot->slab_flags,
+ NULL);
if (prot->slab == NULL) {
printk(KERN_CRIT "%s: Can't create sock SLAB cache!\n",
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index f686467ff12..2bc0384b044 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -22,7 +22,7 @@ static struct ctl_table net_core_table[] = {
.data = &sysctl_wmem_max,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
{
.ctl_name = NET_CORE_RMEM_MAX,
@@ -30,7 +30,7 @@ static struct ctl_table net_core_table[] = {
.data = &sysctl_rmem_max,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
{
.ctl_name = NET_CORE_WMEM_DEFAULT,
@@ -38,7 +38,7 @@ static struct ctl_table net_core_table[] = {
.data = &sysctl_wmem_default,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
{
.ctl_name = NET_CORE_RMEM_DEFAULT,
@@ -46,7 +46,7 @@ static struct ctl_table net_core_table[] = {
.data = &sysctl_rmem_default,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
{
.ctl_name = NET_CORE_DEV_WEIGHT,
@@ -54,7 +54,7 @@ static struct ctl_table net_core_table[] = {
.data = &weight_p,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
{
.ctl_name = NET_CORE_MAX_BACKLOG,
@@ -62,7 +62,7 @@ static struct ctl_table net_core_table[] = {
.data = &netdev_max_backlog,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
{
.ctl_name = NET_CORE_MSG_COST,
@@ -70,8 +70,8 @@ static struct ctl_table net_core_table[] = {
.data = &net_ratelimit_state.interval,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- .strategy = &sysctl_jiffies,
+ .proc_handler = proc_dointvec_jiffies,
+ .strategy = sysctl_jiffies,
},
{
.ctl_name = NET_CORE_MSG_BURST,
@@ -79,7 +79,7 @@ static struct ctl_table net_core_table[] = {
.data = &net_ratelimit_state.burst,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_CORE_OPTMEM_MAX,
@@ -87,7 +87,7 @@ static struct ctl_table net_core_table[] = {
.data = &sysctl_optmem_max,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
#ifdef CONFIG_XFRM
{
@@ -96,7 +96,7 @@ static struct ctl_table net_core_table[] = {
.data = &sysctl_xfrm_aevent_etime,
.maxlen = sizeof(u32),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
{
.ctl_name = NET_CORE_AEVENT_RSEQTH,
@@ -104,7 +104,7 @@ static struct ctl_table net_core_table[] = {
.data = &sysctl_xfrm_aevent_rseqth,
.maxlen = sizeof(u32),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
{
.ctl_name = CTL_UNNUMBERED,
@@ -112,7 +112,7 @@ static struct ctl_table net_core_table[] = {
.data = &sysctl_xfrm_larval_drop,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
{
.ctl_name = CTL_UNNUMBERED,
@@ -120,7 +120,7 @@ static struct ctl_table net_core_table[] = {
.data = &sysctl_xfrm_acq_expires,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
#endif /* CONFIG_XFRM */
#endif /* CONFIG_NET */
@@ -130,7 +130,7 @@ static struct ctl_table net_core_table[] = {
.data = &netdev_budget,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
{
.ctl_name = NET_CORE_WARNINGS,
@@ -138,7 +138,7 @@ static struct ctl_table net_core_table[] = {
.data = &net_msg_warn,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
{ .ctl_name = 0 }
};
@@ -150,7 +150,7 @@ static struct ctl_table netns_core_table[] = {
.data = &init_net.core.sysctl_somaxconn,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
{ .ctl_name = 0 }
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-24 18:28:20 +0000