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-rw-r--r--net/core/ethtool.c8
-rw-r--r--net/ipv4/ip_gre.c61
-rw-r--r--net/ipv4/ipip.c67
-rw-r--r--net/ipv6/sit.c64
-rw-r--r--net/irda/irlan/irlan_event.c2
-rw-r--r--net/irda/irnet/irnet_ppp.h3
-rw-r--r--net/x25/af_x25.c18
7 files changed, 113 insertions, 110 deletions
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 970eb9817bbc..fcd62757704d 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -673,19 +673,19 @@ static int ethtool_get_rx_ntuple(struct net_device *dev, void __user *useraddr)
break;
case IP_USER_FLOW:
sprintf(p, "\tSrc IP addr: 0x%x\n",
- fsc->fs.h_u.raw_ip4_spec.ip4src);
+ fsc->fs.h_u.usr_ip4_spec.ip4src);
p += ETH_GSTRING_LEN;
num_strings++;
sprintf(p, "\tSrc IP mask: 0x%x\n",
- fsc->fs.m_u.raw_ip4_spec.ip4src);
+ fsc->fs.m_u.usr_ip4_spec.ip4src);
p += ETH_GSTRING_LEN;
num_strings++;
sprintf(p, "\tDest IP addr: 0x%x\n",
- fsc->fs.h_u.raw_ip4_spec.ip4dst);
+ fsc->fs.h_u.usr_ip4_spec.ip4dst);
p += ETH_GSTRING_LEN;
num_strings++;
sprintf(p, "\tDest IP mask: 0x%x\n",
- fsc->fs.m_u.raw_ip4_spec.ip4dst);
+ fsc->fs.m_u.usr_ip4_spec.ip4dst);
p += ETH_GSTRING_LEN;
num_strings++;
break;
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 85176895495a..fc20e687e933 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -129,7 +129,7 @@ static int ipgre_tunnel_bind_dev(struct net_device *dev);
static int ipgre_net_id __read_mostly;
struct ipgre_net {
- struct ip_tunnel *tunnels[4][HASH_SIZE];
+ struct ip_tunnel __rcu *tunnels[4][HASH_SIZE];
struct net_device *fb_tunnel_dev;
};
@@ -159,9 +159,8 @@ struct ipgre_net {
#define tunnels_l tunnels[1]
#define tunnels_wc tunnels[0]
/*
- * Locking : hash tables are protected by RCU and a spinlock
+ * Locking : hash tables are protected by RCU and RTNL
*/
-static DEFINE_SPINLOCK(ipgre_lock);
#define for_each_ip_tunnel_rcu(start) \
for (t = rcu_dereference(start); t; t = rcu_dereference(t->next))
@@ -174,8 +173,8 @@ static struct ip_tunnel * ipgre_tunnel_lookup(struct net_device *dev,
{
struct net *net = dev_net(dev);
int link = dev->ifindex;
- unsigned h0 = HASH(remote);
- unsigned h1 = HASH(key);
+ unsigned int h0 = HASH(remote);
+ unsigned int h1 = HASH(key);
struct ip_tunnel *t, *cand = NULL;
struct ipgre_net *ign = net_generic(net, ipgre_net_id);
int dev_type = (gre_proto == htons(ETH_P_TEB)) ?
@@ -290,13 +289,13 @@ static struct ip_tunnel * ipgre_tunnel_lookup(struct net_device *dev,
return NULL;
}
-static struct ip_tunnel **__ipgre_bucket(struct ipgre_net *ign,
+static struct ip_tunnel __rcu **__ipgre_bucket(struct ipgre_net *ign,
struct ip_tunnel_parm *parms)
{
__be32 remote = parms->iph.daddr;
__be32 local = parms->iph.saddr;
__be32 key = parms->i_key;
- unsigned h = HASH(key);
+ unsigned int h = HASH(key);
int prio = 0;
if (local)
@@ -309,7 +308,7 @@ static struct ip_tunnel **__ipgre_bucket(struct ipgre_net *ign,
return &ign->tunnels[prio][h];
}
-static inline struct ip_tunnel **ipgre_bucket(struct ipgre_net *ign,
+static inline struct ip_tunnel __rcu **ipgre_bucket(struct ipgre_net *ign,
struct ip_tunnel *t)
{
return __ipgre_bucket(ign, &t->parms);
@@ -317,23 +316,22 @@ static inline struct ip_tunnel **ipgre_bucket(struct ipgre_net *ign,
static void ipgre_tunnel_link(struct ipgre_net *ign, struct ip_tunnel *t)
{
- struct ip_tunnel **tp = ipgre_bucket(ign, t);
+ struct ip_tunnel __rcu **tp = ipgre_bucket(ign, t);
- spin_lock_bh(&ipgre_lock);
- t->next = *tp;
+ rcu_assign_pointer(t->next, rtnl_dereference(*tp));
rcu_assign_pointer(*tp, t);
- spin_unlock_bh(&ipgre_lock);
}
static void ipgre_tunnel_unlink(struct ipgre_net *ign, struct ip_tunnel *t)
{
- struct ip_tunnel **tp;
-
- for (tp = ipgre_bucket(ign, t); *tp; tp = &(*tp)->next) {
- if (t == *tp) {
- spin_lock_bh(&ipgre_lock);
- *tp = t->next;
- spin_unlock_bh(&ipgre_lock);
+ struct ip_tunnel __rcu **tp;
+ struct ip_tunnel *iter;
+
+ for (tp = ipgre_bucket(ign, t);
+ (iter = rtnl_dereference(*tp)) != NULL;
+ tp = &iter->next) {
+ if (t == iter) {
+ rcu_assign_pointer(*tp, t->next);
break;
}
}
@@ -347,10 +345,13 @@ static struct ip_tunnel *ipgre_tunnel_find(struct net *net,
__be32 local = parms->iph.saddr;
__be32 key = parms->i_key;
int link = parms->link;
- struct ip_tunnel *t, **tp;
+ struct ip_tunnel *t;
+ struct ip_tunnel __rcu **tp;
struct ipgre_net *ign = net_generic(net, ipgre_net_id);
- for (tp = __ipgre_bucket(ign, parms); (t = *tp) != NULL; tp = &t->next)
+ for (tp = __ipgre_bucket(ign, parms);
+ (t = rtnl_dereference(*tp)) != NULL;
+ tp = &t->next)
if (local == t->parms.iph.saddr &&
remote == t->parms.iph.daddr &&
key == t->parms.i_key &&
@@ -361,7 +362,7 @@ static struct ip_tunnel *ipgre_tunnel_find(struct net *net,
return t;
}
-static struct ip_tunnel * ipgre_tunnel_locate(struct net *net,
+static struct ip_tunnel *ipgre_tunnel_locate(struct net *net,
struct ip_tunnel_parm *parms, int create)
{
struct ip_tunnel *t, *nt;
@@ -669,7 +670,7 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev
u8 tos;
__be16 df;
struct rtable *rt; /* Route to the other host */
- struct net_device *tdev; /* Device to other host */
+ struct net_device *tdev; /* Device to other host */
struct iphdr *iph; /* Our new IP header */
unsigned int max_headroom; /* The extra header space needed */
int gre_hlen;
@@ -1013,7 +1014,7 @@ ipgre_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
break;
}
} else {
- unsigned nflags = 0;
+ unsigned int nflags = 0;
t = netdev_priv(dev);
@@ -1126,7 +1127,7 @@ static int ipgre_tunnel_change_mtu(struct net_device *dev, int new_mtu)
static int ipgre_header(struct sk_buff *skb, struct net_device *dev,
unsigned short type,
- const void *daddr, const void *saddr, unsigned len)
+ const void *daddr, const void *saddr, unsigned int len)
{
struct ip_tunnel *t = netdev_priv(dev);
struct iphdr *iph = (struct iphdr *)skb_push(skb, t->hlen);
@@ -1275,7 +1276,7 @@ static void ipgre_fb_tunnel_init(struct net_device *dev)
tunnel->hlen = sizeof(struct iphdr) + 4;
dev_hold(dev);
- ign->tunnels_wc[0] = tunnel;
+ rcu_assign_pointer(ign->tunnels_wc[0], tunnel);
}
@@ -1291,11 +1292,13 @@ static void ipgre_destroy_tunnels(struct ipgre_net *ign, struct list_head *head)
for (prio = 0; prio < 4; prio++) {
int h;
for (h = 0; h < HASH_SIZE; h++) {
- struct ip_tunnel *t = ign->tunnels[prio][h];
+ struct ip_tunnel *t;
+
+ t = rtnl_dereference(ign->tunnels[prio][h]);
while (t != NULL) {
unregister_netdevice_queue(t->dev, head);
- t = t->next;
+ t = rtnl_dereference(t->next);
}
}
}
@@ -1522,7 +1525,7 @@ static int ipgre_changelink(struct net_device *dev, struct nlattr *tb[],
t = nt;
if (dev->type != ARPHRD_ETHER) {
- unsigned nflags = 0;
+ unsigned int nflags = 0;
if (ipv4_is_multicast(p.iph.daddr))
nflags = IFF_BROADCAST;
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 3c6f8f3968a6..8de8888dc95a 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -122,11 +122,11 @@
static int ipip_net_id __read_mostly;
struct ipip_net {
- struct ip_tunnel *tunnels_r_l[HASH_SIZE];
- struct ip_tunnel *tunnels_r[HASH_SIZE];
- struct ip_tunnel *tunnels_l[HASH_SIZE];
- struct ip_tunnel *tunnels_wc[1];
- struct ip_tunnel **tunnels[4];
+ struct ip_tunnel __rcu *tunnels_r_l[HASH_SIZE];
+ struct ip_tunnel __rcu *tunnels_r[HASH_SIZE];
+ struct ip_tunnel __rcu *tunnels_l[HASH_SIZE];
+ struct ip_tunnel __rcu *tunnels_wc[1];
+ struct ip_tunnel __rcu **tunnels[4];
struct net_device *fb_tunnel_dev;
};
@@ -135,9 +135,8 @@ static void ipip_tunnel_init(struct net_device *dev);
static void ipip_tunnel_setup(struct net_device *dev);
/*
- * Locking : hash tables are protected by RCU and a spinlock
+ * Locking : hash tables are protected by RCU and RTNL
*/
-static DEFINE_SPINLOCK(ipip_lock);
#define for_each_ip_tunnel_rcu(start) \
for (t = rcu_dereference(start); t; t = rcu_dereference(t->next))
@@ -145,8 +144,8 @@ static DEFINE_SPINLOCK(ipip_lock);
static struct ip_tunnel * ipip_tunnel_lookup(struct net *net,
__be32 remote, __be32 local)
{
- unsigned h0 = HASH(remote);
- unsigned h1 = HASH(local);
+ unsigned int h0 = HASH(remote);
+ unsigned int h1 = HASH(local);
struct ip_tunnel *t;
struct ipip_net *ipn = net_generic(net, ipip_net_id);
@@ -169,12 +168,12 @@ static struct ip_tunnel * ipip_tunnel_lookup(struct net *net,
return NULL;
}
-static struct ip_tunnel **__ipip_bucket(struct ipip_net *ipn,
+static struct ip_tunnel __rcu **__ipip_bucket(struct ipip_net *ipn,
struct ip_tunnel_parm *parms)
{
__be32 remote = parms->iph.daddr;
__be32 local = parms->iph.saddr;
- unsigned h = 0;
+ unsigned int h = 0;
int prio = 0;
if (remote) {
@@ -188,7 +187,7 @@ static struct ip_tunnel **__ipip_bucket(struct ipip_net *ipn,
return &ipn->tunnels[prio][h];
}
-static inline struct ip_tunnel **ipip_bucket(struct ipip_net *ipn,
+static inline struct ip_tunnel __rcu **ipip_bucket(struct ipip_net *ipn,
struct ip_tunnel *t)
{
return __ipip_bucket(ipn, &t->parms);
@@ -196,13 +195,14 @@ static inline struct ip_tunnel **ipip_bucket(struct ipip_net *ipn,
static void ipip_tunnel_unlink(struct ipip_net *ipn, struct ip_tunnel *t)
{
- struct ip_tunnel **tp;
-
- for (tp = ipip_bucket(ipn, t); *tp; tp = &(*tp)->next) {
- if (t == *tp) {
- spin_lock_bh(&ipip_lock);
- *tp = t->next;
- spin_unlock_bh(&ipip_lock);
+ struct ip_tunnel __rcu **tp;
+ struct ip_tunnel *iter;
+
+ for (tp = ipip_bucket(ipn, t);
+ (iter = rtnl_dereference(*tp)) != NULL;
+ tp = &iter->next) {
+ if (t == iter) {
+ rcu_assign_pointer(*tp, t->next);
break;
}
}
@@ -210,12 +210,10 @@ static void ipip_tunnel_unlink(struct ipip_net *ipn, struct ip_tunnel *t)
static void ipip_tunnel_link(struct ipip_net *ipn, struct ip_tunnel *t)
{
- struct ip_tunnel **tp = ipip_bucket(ipn, t);
+ struct ip_tunnel __rcu **tp = ipip_bucket(ipn, t);
- spin_lock_bh(&ipip_lock);
- t->next = *tp;
+ rcu_assign_pointer(t->next, rtnl_dereference(*tp));
rcu_assign_pointer(*tp, t);
- spin_unlock_bh(&ipip_lock);
}
static struct ip_tunnel * ipip_tunnel_locate(struct net *net,
@@ -223,12 +221,15 @@ static struct ip_tunnel * ipip_tunnel_locate(struct net *net,
{
__be32 remote = parms->iph.daddr;
__be32 local = parms->iph.saddr;
- struct ip_tunnel *t, **tp, *nt;
+ struct ip_tunnel *t, *nt;
+ struct ip_tunnel __rcu **tp;
struct net_device *dev;
char name[IFNAMSIZ];
struct ipip_net *ipn = net_generic(net, ipip_net_id);
- for (tp = __ipip_bucket(ipn, parms); (t = *tp) != NULL; tp = &t->next) {
+ for (tp = __ipip_bucket(ipn, parms);
+ (t = rtnl_dereference(*tp)) != NULL;
+ tp = &t->next) {
if (local == t->parms.iph.saddr && remote == t->parms.iph.daddr)
return t;
}
@@ -268,16 +269,15 @@ failed_free:
return NULL;
}
+/* called with RTNL */
static void ipip_tunnel_uninit(struct net_device *dev)
{
struct net *net = dev_net(dev);
struct ipip_net *ipn = net_generic(net, ipip_net_id);
- if (dev == ipn->fb_tunnel_dev) {
- spin_lock_bh(&ipip_lock);
- ipn->tunnels_wc[0] = NULL;
- spin_unlock_bh(&ipip_lock);
- } else
+ if (dev == ipn->fb_tunnel_dev)
+ rcu_assign_pointer(ipn->tunnels_wc[0], NULL);
+ else
ipip_tunnel_unlink(ipn, netdev_priv(dev));
dev_put(dev);
}
@@ -741,7 +741,7 @@ static void __net_init ipip_fb_tunnel_init(struct net_device *dev)
iph->ihl = 5;
dev_hold(dev);
- ipn->tunnels_wc[0] = tunnel;
+ rcu_assign_pointer(ipn->tunnels_wc[0], tunnel);
}
static struct xfrm_tunnel ipip_handler __read_mostly = {
@@ -760,11 +760,12 @@ static void ipip_destroy_tunnels(struct ipip_net *ipn, struct list_head *head)
for (prio = 1; prio < 4; prio++) {
int h;
for (h = 0; h < HASH_SIZE; h++) {
- struct ip_tunnel *t = ipn->tunnels[prio][h];
+ struct ip_tunnel *t;
+ t = rtnl_dereference(ipn->tunnels[prio][h]);
while (t != NULL) {
unregister_netdevice_queue(t->dev, head);
- t = t->next;
+ t = rtnl_dereference(t->next);
}
}
}
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 86618eb30335..6822481ff766 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -68,19 +68,18 @@ static void ipip6_tunnel_setup(struct net_device *dev);
static int sit_net_id __read_mostly;
struct sit_net {
- struct ip_tunnel *tunnels_r_l[HASH_SIZE];
- struct ip_tunnel *tunnels_r[HASH_SIZE];
- struct ip_tunnel *tunnels_l[HASH_SIZE];
- struct ip_tunnel *tunnels_wc[1];
- struct ip_tunnel **tunnels[4];
+ struct ip_tunnel __rcu *tunnels_r_l[HASH_SIZE];
+ struct ip_tunnel __rcu *tunnels_r[HASH_SIZE];
+ struct ip_tunnel __rcu *tunnels_l[HASH_SIZE];
+ struct ip_tunnel __rcu *tunnels_wc[1];
+ struct ip_tunnel __rcu **tunnels[4];
struct net_device *fb_tunnel_dev;
};
/*
- * Locking : hash tables are protected by RCU and a spinlock
+ * Locking : hash tables are protected by RCU and RTNL
*/
-static DEFINE_SPINLOCK(ipip6_lock);
#define for_each_ip_tunnel_rcu(start) \
for (t = rcu_dereference(start); t; t = rcu_dereference(t->next))
@@ -91,8 +90,8 @@ static DEFINE_SPINLOCK(ipip6_lock);
static struct ip_tunnel * ipip6_tunnel_lookup(struct net *net,
struct net_device *dev, __be32 remote, __be32 local)
{
- unsigned h0 = HASH(remote);
- unsigned h1 = HASH(local);
+ unsigned int h0 = HASH(remote);
+ unsigned int h1 = HASH(local);
struct ip_tunnel *t;
struct sit_net *sitn = net_generic(net, sit_net_id);
@@ -121,12 +120,12 @@ static struct ip_tunnel * ipip6_tunnel_lookup(struct net *net,
return NULL;
}
-static struct ip_tunnel **__ipip6_bucket(struct sit_net *sitn,
+static struct ip_tunnel __rcu **__ipip6_bucket(struct sit_net *sitn,
struct ip_tunnel_parm *parms)
{
__be32 remote = parms->iph.daddr;
__be32 local = parms->iph.saddr;
- unsigned h = 0;
+ unsigned int h = 0;
int prio = 0;
if (remote) {
@@ -140,7 +139,7 @@ static struct ip_tunnel **__ipip6_bucket(struct sit_net *sitn,
return &sitn->tunnels[prio][h];
}
-static inline struct ip_tunnel **ipip6_bucket(struct sit_net *sitn,
+static inline struct ip_tunnel __rcu **ipip6_bucket(struct sit_net *sitn,
struct ip_tunnel *t)
{
return __ipip6_bucket(sitn, &t->parms);
@@ -148,13 +147,14 @@ static inline struct ip_tunnel **ipip6_bucket(struct sit_net *sitn,
static void ipip6_tunnel_unlink(struct sit_net *sitn, struct ip_tunnel *t)
{
- struct ip_tunnel **tp;
-
- for (tp = ipip6_bucket(sitn, t); *tp; tp = &(*tp)->next) {
- if (t == *tp) {
- spin_lock_bh(&ipip6_lock);
- *tp = t->next;
- spin_unlock_bh(&ipip6_lock);
+ struct ip_tunnel __rcu **tp;
+ struct ip_tunnel *iter;
+
+ for (tp = ipip6_bucket(sitn, t);
+ (iter = rtnl_dereference(*tp)) != NULL;
+ tp = &iter->next) {
+ if (t == iter) {
+ rcu_assign_pointer(*tp, t->next);
break;
}
}
@@ -162,12 +162,10 @@ static void ipip6_tunnel_unlink(struct sit_net *sitn, struct ip_tunnel *t)
static void ipip6_tunnel_link(struct sit_net *sitn, struct ip_tunnel *t)
{
- struct ip_tunnel **tp = ipip6_bucket(sitn, t);
+ struct ip_tunnel __rcu **tp = ipip6_bucket(sitn, t);
- spin_lock_bh(&ipip6_lock);
- t->next = *tp;
+ rcu_assign_pointer(t->next, rtnl_dereference(*tp));
rcu_assign_pointer(*tp, t);
- spin_unlock_bh(&ipip6_lock);
}
static void ipip6_tunnel_clone_6rd(struct net_device *dev, struct sit_net *sitn)
@@ -187,17 +185,20 @@ static void ipip6_tunnel_clone_6rd(struct net_device *dev, struct sit_net *sitn)
#endif
}
-static struct ip_tunnel * ipip6_tunnel_locate(struct net *net,
+static struct ip_tunnel *ipip6_tunnel_locate(struct net *net,
struct ip_tunnel_parm *parms, int create)
{
__be32 remote = parms->iph.daddr;
__be32 local = parms->iph.saddr;
- struct ip_tunnel *t, **tp, *nt;
+ struct ip_tunnel *t, *nt;
+ struct ip_tunnel __rcu **tp;
struct net_device *dev;
char name[IFNAMSIZ];
struct sit_net *sitn = net_generic(net, sit_net_id);
- for (tp = __ipip6_bucket(sitn, parms); (t = *tp) != NULL; tp = &t->next) {
+ for (tp = __ipip6_bucket(sitn, parms);
+ (t = rtnl_dereference(*tp)) != NULL;
+ tp = &t->next) {
if (local == t->parms.iph.saddr &&
remote == t->parms.iph.daddr &&
parms->link == t->parms.link) {
@@ -340,7 +341,7 @@ ipip6_tunnel_add_prl(struct ip_tunnel *t, struct ip_tunnel_prl *a, int chg)
ASSERT_RTNL();
- for (p = t->prl; p; p = p->next) {
+ for (p = rtnl_dereference(t->prl); p; p = rtnl_dereference(p->next)) {
if (p->addr == a->addr) {
if (chg) {
p->flags = a->flags;
@@ -451,15 +452,12 @@ static void ipip6_tunnel_uninit(struct net_device *dev)
struct sit_net *sitn = net_generic(net, sit_net_id);
if (dev == sitn->fb_tunnel_dev) {
- spin_lock_bh(&ipip6_lock);
- sitn->tunnels_wc[0] = NULL;
- spin_unlock_bh(&ipip6_lock);
- dev_put(dev);
+ rcu_assign_pointer(sitn->tunnels_wc[0], NULL);
} else {
ipip6_tunnel_unlink(sitn, netdev_priv(dev));
ipip6_tunnel_del_prl(netdev_priv(dev), NULL);
- dev_put(dev);
}
+ dev_put(dev);
}
@@ -590,7 +588,7 @@ __be32 try_6rd(struct in6_addr *v6dst, struct ip_tunnel *tunnel)
#ifdef CONFIG_IPV6_SIT_6RD
if (ipv6_prefix_equal(v6dst, &tunnel->ip6rd.prefix,
tunnel->ip6rd.prefixlen)) {
- unsigned pbw0, pbi0;
+ unsigned int pbw0, pbi0;
int pbi1;
u32 d;
diff --git a/net/irda/irlan/irlan_event.c b/net/irda/irlan/irlan_event.c
index cbcb4eb54037..43f16040a6fe 100644
--- a/net/irda/irlan/irlan_event.c
+++ b/net/irda/irlan/irlan_event.c
@@ -24,7 +24,7 @@
#include <net/irda/irlan_event.h>
-char *irlan_state[] = {
+const char * const irlan_state[] = {
"IRLAN_IDLE",
"IRLAN_QUERY",
"IRLAN_CONN",
diff --git a/net/irda/irnet/irnet_ppp.h b/net/irda/irnet/irnet_ppp.h
index b5df2418f90c..940225866da0 100644
--- a/net/irda/irnet/irnet_ppp.h
+++ b/net/irda/irnet/irnet_ppp.h
@@ -103,7 +103,8 @@ static const struct file_operations irnet_device_fops =
.poll = dev_irnet_poll,
.unlocked_ioctl = dev_irnet_ioctl,
.open = dev_irnet_open,
- .release = dev_irnet_close
+ .release = dev_irnet_close,
+ .llseek = noop_llseek,
/* Also : llseek, readdir, mmap, flush, fsync, fasync, lock, readv, writev */
};
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 5e86d4e97dce..c1bbf9ec71f4 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -507,14 +507,14 @@ static int x25_listen(struct socket *sock, int backlog)
struct sock *sk = sock->sk;
int rc = -EOPNOTSUPP;
- lock_kernel();
+ lock_sock(sk);
if (sk->sk_state != TCP_LISTEN) {
memset(&x25_sk(sk)->dest_addr, 0, X25_ADDR_LEN);
sk->sk_max_ack_backlog = backlog;
sk->sk_state = TCP_LISTEN;
rc = 0;
}
- unlock_kernel();
+ release_sock(sk);
return rc;
}
@@ -688,7 +688,6 @@ static int x25_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
struct sockaddr_x25 *addr = (struct sockaddr_x25 *)uaddr;
int len, i, rc = 0;
- lock_kernel();
if (!sock_flag(sk, SOCK_ZAPPED) ||
addr_len != sizeof(struct sockaddr_x25) ||
addr->sx25_family != AF_X25) {
@@ -704,12 +703,13 @@ static int x25_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
}
}
+ lock_sock(sk);
x25_sk(sk)->source_addr = addr->sx25_addr;
x25_insert_socket(sk);
sock_reset_flag(sk, SOCK_ZAPPED);
+ release_sock(sk);
SOCK_DEBUG(sk, "x25_bind: socket is bound\n");
out:
- unlock_kernel();
return rc;
}
@@ -751,7 +751,6 @@ static int x25_connect(struct socket *sock, struct sockaddr *uaddr,
struct x25_route *rt;
int rc = 0;
- lock_kernel();
lock_sock(sk);
if (sk->sk_state == TCP_ESTABLISHED && sock->state == SS_CONNECTING) {
sock->state = SS_CONNECTED;
@@ -829,7 +828,6 @@ out_put_route:
x25_route_put(rt);
out:
release_sock(sk);
- unlock_kernel();
return rc;
}
@@ -869,8 +867,7 @@ static int x25_accept(struct socket *sock, struct socket *newsock, int flags)
struct sk_buff *skb;
int rc = -EINVAL;
- lock_kernel();
- if (!sk || sk->sk_state != TCP_LISTEN)
+ if (!sk)
goto out;
rc = -EOPNOTSUPP;
@@ -878,6 +875,10 @@ static int x25_accept(struct socket *sock, struct socket *newsock, int flags)
goto out;
lock_sock(sk);
+ rc = -EINVAL;
+ if (sk->sk_state != TCP_LISTEN)
+ goto out2;
+
rc = x25_wait_for_data(sk, sk->sk_rcvtimeo);
if (rc)
goto out2;
@@ -897,7 +898,6 @@ static int x25_accept(struct socket *sock, struct socket *newsock, int flags)
out2:
release_sock(sk);
out:
- unlock_kernel();
return rc;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.