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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-11-01 12:09:33 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-11-01 12:09:33 -0700
commit54866f032307063776b4eff7eadb131d47f9f9b4 (patch)
tree5fb7b5f886b43fbe115e81c14570c40c44956b53
parentb4d367fb20ed19be4a53fa88b407248aeb8bd461 (diff)
parent49259d34c52df6be482fefca946debe28ba9a2f6 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [IRDA] IRNET: Fix build when TCGETS2 is defined. [NET]: docbook fixes for netif_ functions [NET]: Hide the net_ns kmem cache [NET]: Mark the setup_net as __net_init [NET]: Hide the dead code in the net_namespace.c [NET]: Relax the reference counting of init_net_ns [NETNS]: Make the init/exit hooks checks outside the loop [NET]: Forget the zero_it argument of sk_alloc() [NET]: Remove bogus zero_it argument from sk_alloc [NET]: Make the sk_clone() lighter [NET]: Move some core sock setup into sk_prot_alloc [NET]: Auto-zero the allocated sock object [NET]: Cleanup the allocation/freeing of the sock object [NET]: Move the get_net() from sock_copy() [NET]: Move the sock_copy() from the header [TCP]: Another TAGBITS -> SACKED_ACKED|LOST conversion [TCP]: Process DSACKs that reside within a SACK block
-rw-r--r--drivers/net/pppoe.c2
-rw-r--r--drivers/net/pppol2tp.c2
-rw-r--r--include/linux/netdevice.h10
-rw-r--r--include/net/net_namespace.h33
-rw-r--r--include/net/sock.h16
-rw-r--r--net/appletalk/ddp.c2
-rw-r--r--net/atm/common.c2
-rw-r--r--net/ax25/af_ax25.c6
-rw-r--r--net/bluetooth/bnep/sock.c2
-rw-r--r--net/bluetooth/cmtp/sock.c2
-rw-r--r--net/bluetooth/hci_sock.c2
-rw-r--r--net/bluetooth/hidp/sock.c2
-rw-r--r--net/bluetooth/l2cap.c2
-rw-r--r--net/bluetooth/rfcomm/sock.c2
-rw-r--r--net/bluetooth/sco.c2
-rw-r--r--net/core/dev.c18
-rw-r--r--net/core/net_namespace.c162
-rw-r--r--net/core/sock.c105
-rw-r--r--net/decnet/af_decnet.c2
-rw-r--r--net/econet/af_econet.c2
-rw-r--r--net/ipv4/af_inet.c2
-rw-r--r--net/ipv4/tcp_input.c27
-rw-r--r--net/ipv6/af_inet6.c2
-rw-r--r--net/ipx/af_ipx.c2
-rw-r--r--net/irda/af_irda.c2
-rw-r--r--net/irda/irnet/irnet_ppp.c10
-rw-r--r--net/iucv/af_iucv.c2
-rw-r--r--net/key/af_key.c2
-rw-r--r--net/llc/llc_conn.c2
-rw-r--r--net/netlink/af_netlink.c2
-rw-r--r--net/netrom/af_netrom.c6
-rw-r--r--net/packet/af_packet.c2
-rw-r--r--net/rose/af_rose.c6
-rw-r--r--net/rxrpc/af_rxrpc.c2
-rw-r--r--net/sctp/ipv6.c2
-rw-r--r--net/sctp/protocol.c3
-rw-r--r--net/tipc/socket.c2
-rw-r--r--net/unix/af_unix.c2
-rw-r--r--net/x25/af_x25.c2
39 files changed, 280 insertions, 176 deletions
diff --git a/drivers/net/pppoe.c b/drivers/net/pppoe.c
index 8936ed3469c..a005d8f4c38 100644
--- a/drivers/net/pppoe.c
+++ b/drivers/net/pppoe.c
@@ -491,7 +491,7 @@ static int pppoe_create(struct net *net, struct socket *sock)
int error = -ENOMEM;
struct sock *sk;
- sk = sk_alloc(net, PF_PPPOX, GFP_KERNEL, &pppoe_sk_proto, 1);
+ sk = sk_alloc(net, PF_PPPOX, GFP_KERNEL, &pppoe_sk_proto);
if (!sk)
goto out;
diff --git a/drivers/net/pppol2tp.c b/drivers/net/pppol2tp.c
index 921d4ef6d14..f8904fd9236 100644
--- a/drivers/net/pppol2tp.c
+++ b/drivers/net/pppol2tp.c
@@ -1416,7 +1416,7 @@ static int pppol2tp_create(struct net *net, struct socket *sock)
int error = -ENOMEM;
struct sock *sk;
- sk = sk_alloc(net, PF_PPPOX, GFP_KERNEL, &pppol2tp_sk_proto, 1);
+ sk = sk_alloc(net, PF_PPPOX, GFP_KERNEL, &pppol2tp_sk_proto);
if (!sk)
goto out;
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 9b0c8f12373..1e6af4f174b 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -739,6 +739,16 @@ static inline void *netdev_priv(const struct net_device *dev)
*/
#define SET_NETDEV_DEV(net, pdev) ((net)->dev.parent = (pdev))
+/**
+ * netif_napi_add - initialize a napi context
+ * @dev: network device
+ * @napi: napi context
+ * @poll: polling function
+ * @weight: default weight
+ *
+ * netif_napi_add() must be used to initialize a napi context prior to calling
+ * *any* of the other napi related functions.
+ */
static inline void netif_napi_add(struct net_device *dev,
struct napi_struct *napi,
int (*poll)(struct napi_struct *, int),
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index 5279466606d..1fd449a6530 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -51,13 +51,12 @@ static inline struct net *copy_net_ns(unsigned long flags, struct net *net_ns)
}
#endif
+#ifdef CONFIG_NET_NS
extern void __put_net(struct net *net);
static inline struct net *get_net(struct net *net)
{
-#ifdef CONFIG_NET
atomic_inc(&net->count);
-#endif
return net;
}
@@ -75,26 +74,44 @@ static inline struct net *maybe_get_net(struct net *net)
static inline void put_net(struct net *net)
{
-#ifdef CONFIG_NET
if (atomic_dec_and_test(&net->count))
__put_net(net);
-#endif
}
static inline struct net *hold_net(struct net *net)
{
-#ifdef CONFIG_NET
atomic_inc(&net->use_count);
-#endif
return net;
}
static inline void release_net(struct net *net)
{
-#ifdef CONFIG_NET
atomic_dec(&net->use_count);
-#endif
}
+#else
+static inline struct net *get_net(struct net *net)
+{
+ return net;
+}
+
+static inline void put_net(struct net *net)
+{
+}
+
+static inline struct net *hold_net(struct net *net)
+{
+ return net;
+}
+
+static inline void release_net(struct net *net)
+{
+}
+
+static inline struct net *maybe_get_net(struct net *net)
+{
+ return net;
+}
+#endif
#define for_each_net(VAR) \
list_for_each_entry(VAR, &net_namespace_list, list)
diff --git a/include/net/sock.h b/include/net/sock.h
index 43fc3fa50d6..20de3fa7ae4 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -779,7 +779,7 @@ extern void FASTCALL(release_sock(struct sock *sk));
extern struct sock *sk_alloc(struct net *net, int family,
gfp_t priority,
- struct proto *prot, int zero_it);
+ struct proto *prot);
extern void sk_free(struct sock *sk);
extern struct sock *sk_clone(const struct sock *sk,
const gfp_t priority);
@@ -993,20 +993,6 @@ static inline void sock_graft(struct sock *sk, struct socket *parent)
write_unlock_bh(&sk->sk_callback_lock);
}
-static inline void sock_copy(struct sock *nsk, const struct sock *osk)
-{
-#ifdef CONFIG_SECURITY_NETWORK
- void *sptr = nsk->sk_security;
-#endif
-
- memcpy(nsk, osk, osk->sk_prot->obj_size);
- get_net(nsk->sk_net);
-#ifdef CONFIG_SECURITY_NETWORK
- nsk->sk_security = sptr;
- security_sk_clone(osk, nsk);
-#endif
-}
-
extern int sock_i_uid(struct sock *sk);
extern unsigned long sock_i_ino(struct sock *sk);
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index 7c0b5151d52..e0d37d6dc1f 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -1044,7 +1044,7 @@ static int atalk_create(struct net *net, struct socket *sock, int protocol)
if (sock->type != SOCK_RAW && sock->type != SOCK_DGRAM)
goto out;
rc = -ENOMEM;
- sk = sk_alloc(net, PF_APPLETALK, GFP_KERNEL, &ddp_proto, 1);
+ sk = sk_alloc(net, PF_APPLETALK, GFP_KERNEL, &ddp_proto);
if (!sk)
goto out;
rc = 0;
diff --git a/net/atm/common.c b/net/atm/common.c
index e166d9e0ffd..eba09a04f6b 100644
--- a/net/atm/common.c
+++ b/net/atm/common.c
@@ -133,7 +133,7 @@ int vcc_create(struct net *net, struct socket *sock, int protocol, int family)
sock->sk = NULL;
if (sock->type == SOCK_STREAM)
return -EINVAL;
- sk = sk_alloc(net, family, GFP_KERNEL, &vcc_proto, 1);
+ sk = sk_alloc(net, family, GFP_KERNEL, &vcc_proto);
if (!sk)
return -ENOMEM;
sock_init_data(sock, sk);
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 993e5c75e90..8378afd54b3 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -836,7 +836,8 @@ static int ax25_create(struct net *net, struct socket *sock, int protocol)
return -ESOCKTNOSUPPORT;
}
- if ((sk = sk_alloc(net, PF_AX25, GFP_ATOMIC, &ax25_proto, 1)) == NULL)
+ sk = sk_alloc(net, PF_AX25, GFP_ATOMIC, &ax25_proto);
+ if (sk == NULL)
return -ENOMEM;
ax25 = sk->sk_protinfo = ax25_create_cb();
@@ -861,7 +862,8 @@ struct sock *ax25_make_new(struct sock *osk, struct ax25_dev *ax25_dev)
struct sock *sk;
ax25_cb *ax25, *oax25;
- if ((sk = sk_alloc(osk->sk_net, PF_AX25, GFP_ATOMIC, osk->sk_prot, 1)) == NULL)
+ sk = sk_alloc(osk->sk_net, PF_AX25, GFP_ATOMIC, osk->sk_prot);
+ if (sk == NULL)
return NULL;
if ((ax25 = ax25_create_cb()) == NULL) {
diff --git a/net/bluetooth/bnep/sock.c b/net/bluetooth/bnep/sock.c
index f718965f296..9ebd3c64474 100644
--- a/net/bluetooth/bnep/sock.c
+++ b/net/bluetooth/bnep/sock.c
@@ -213,7 +213,7 @@ static int bnep_sock_create(struct net *net, struct socket *sock, int protocol)
if (sock->type != SOCK_RAW)
return -ESOCKTNOSUPPORT;
- sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &bnep_proto, 1);
+ sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &bnep_proto);
if (!sk)
return -ENOMEM;
diff --git a/net/bluetooth/cmtp/sock.c b/net/bluetooth/cmtp/sock.c
index cf700c20d11..783edab12ce 100644
--- a/net/bluetooth/cmtp/sock.c
+++ b/net/bluetooth/cmtp/sock.c
@@ -204,7 +204,7 @@ static int cmtp_sock_create(struct net *net, struct socket *sock, int protocol)
if (sock->type != SOCK_RAW)
return -ESOCKTNOSUPPORT;
- sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &cmtp_proto, 1);
+ sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &cmtp_proto);
if (!sk)
return -ENOMEM;
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 8825102c517..14991323c27 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -645,7 +645,7 @@ static int hci_sock_create(struct net *net, struct socket *sock, int protocol)
sock->ops = &hci_sock_ops;
- sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hci_sk_proto, 1);
+ sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hci_sk_proto);
if (!sk)
return -ENOMEM;
diff --git a/net/bluetooth/hidp/sock.c b/net/bluetooth/hidp/sock.c
index 1de2b6fbcac..3292b956a7c 100644
--- a/net/bluetooth/hidp/sock.c
+++ b/net/bluetooth/hidp/sock.c
@@ -255,7 +255,7 @@ static int hidp_sock_create(struct net *net, struct socket *sock, int protocol)
if (sock->type != SOCK_RAW)
return -ESOCKTNOSUPPORT;
- sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hidp_proto, 1);
+ sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hidp_proto);
if (!sk)
return -ENOMEM;
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 6fbbae78b30..477e052b17b 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -607,7 +607,7 @@ static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, int p
{
struct sock *sk;
- sk = sk_alloc(net, PF_BLUETOOTH, prio, &l2cap_proto, 1);
+ sk = sk_alloc(net, PF_BLUETOOTH, prio, &l2cap_proto);
if (!sk)
return NULL;
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 266b6972667..c46d51035e7 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -287,7 +287,7 @@ static struct sock *rfcomm_sock_alloc(struct net *net, struct socket *sock, int
struct rfcomm_dlc *d;
struct sock *sk;
- sk = sk_alloc(net, PF_BLUETOOTH, prio, &rfcomm_proto, 1);
+ sk = sk_alloc(net, PF_BLUETOOTH, prio, &rfcomm_proto);
if (!sk)
return NULL;
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 82d0dfdfa7e..93ad1aae3f3 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -421,7 +421,7 @@ static struct sock *sco_sock_alloc(struct net *net, struct socket *sock, int pro
{
struct sock *sk;
- sk = sk_alloc(net, PF_BLUETOOTH, prio, &sco_proto, 1);
+ sk = sk_alloc(net, PF_BLUETOOTH, prio, &sco_proto);
if (!sk)
return NULL;
diff --git a/net/core/dev.c b/net/core/dev.c
index 91ece48e127..be6cedab5aa 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1751,9 +1751,6 @@ DEFINE_PER_CPU(struct netif_rx_stats, netdev_rx_stat) = { 0, };
*
* return values:
* NET_RX_SUCCESS (no congestion)
- * NET_RX_CN_LOW (low congestion)
- * NET_RX_CN_MOD (moderate congestion)
- * NET_RX_CN_HIGH (high congestion)
* NET_RX_DROP (packet was dropped)
*
*/
@@ -2001,6 +1998,21 @@ out:
}
#endif
+/**
+ * netif_receive_skb - process receive buffer from network
+ * @skb: buffer to process
+ *
+ * netif_receive_skb() is the main receive data processing function.
+ * It always succeeds. The buffer may be dropped during processing
+ * for congestion control or by the protocol layers.
+ *
+ * This function may only be called from softirq context and interrupts
+ * should be enabled.
+ *
+ * Return values (usually ignored):
+ * NET_RX_SUCCESS: no congestion
+ * NET_RX_DROP: packet was dropped
+ */
int netif_receive_skb(struct sk_buff *skb)
{
struct packet_type *ptype, *pt_prev;
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 662e6ea1cec..e9f0964ce70 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -17,74 +17,13 @@ static DEFINE_MUTEX(net_mutex);
LIST_HEAD(net_namespace_list);
-static struct kmem_cache *net_cachep;
-
struct net init_net;
EXPORT_SYMBOL_GPL(init_net);
-static struct net *net_alloc(void)
-{
- return kmem_cache_zalloc(net_cachep, GFP_KERNEL);
-}
-
-static void net_free(struct net *net)
-{
- if (!net)
- return;
-
- if (unlikely(atomic_read(&net->use_count) != 0)) {
- printk(KERN_EMERG "network namespace not free! Usage: %d\n",
- atomic_read(&net->use_count));
- return;
- }
-
- kmem_cache_free(net_cachep, net);
-}
-
-static void cleanup_net(struct work_struct *work)
-{
- struct pernet_operations *ops;
- struct net *net;
-
- net = container_of(work, struct net, work);
-
- mutex_lock(&net_mutex);
-
- /* Don't let anyone else find us. */
- rtnl_lock();
- list_del(&net->list);
- rtnl_unlock();
-
- /* Run all of the network namespace exit methods */
- list_for_each_entry_reverse(ops, &pernet_list, list) {
- if (ops->exit)
- ops->exit(net);
- }
-
- mutex_unlock(&net_mutex);
-
- /* Ensure there are no outstanding rcu callbacks using this
- * network namespace.
- */
- rcu_barrier();
-
- /* Finally it is safe to free my network namespace structure */
- net_free(net);
-}
-
-
-void __put_net(struct net *net)
-{
- /* Cleanup the network namespace in process context */
- INIT_WORK(&net->work, cleanup_net);
- schedule_work(&net->work);
-}
-EXPORT_SYMBOL_GPL(__put_net);
-
/*
* setup_net runs the initializers for the network namespace object.
*/
-static int setup_net(struct net *net)
+static __net_init int setup_net(struct net *net)
{
/* Must be called with net_mutex held */
struct pernet_operations *ops;
@@ -117,6 +56,14 @@ out_undo:
goto out;
}
+#ifdef CONFIG_NET_NS
+static struct kmem_cache *net_cachep;
+
+static struct net *net_alloc(void)
+{
+ return kmem_cache_zalloc(net_cachep, GFP_KERNEL);
+}
+
struct net *copy_net_ns(unsigned long flags, struct net *old_net)
{
struct net *new_net = NULL;
@@ -127,10 +74,6 @@ struct net *copy_net_ns(unsigned long flags, struct net *old_net)
if (!(flags & CLONE_NEWNET))
return old_net;
-#ifndef CONFIG_NET_NS
- return ERR_PTR(-EINVAL);
-#endif
-
err = -ENOMEM;
new_net = net_alloc();
if (!new_net)
@@ -157,14 +100,78 @@ out:
return new_net;
}
+static void net_free(struct net *net)
+{
+ if (!net)
+ return;
+
+ if (unlikely(atomic_read(&net->use_count) != 0)) {
+ printk(KERN_EMERG "network namespace not free! Usage: %d\n",
+ atomic_read(&net->use_count));
+ return;
+ }
+
+ kmem_cache_free(net_cachep, net);
+}
+
+static void cleanup_net(struct work_struct *work)
+{
+ struct pernet_operations *ops;
+ struct net *net;
+
+ net = container_of(work, struct net, work);
+
+ mutex_lock(&net_mutex);
+
+ /* Don't let anyone else find us. */
+ rtnl_lock();
+ list_del(&net->list);
+ rtnl_unlock();
+
+ /* Run all of the network namespace exit methods */
+ list_for_each_entry_reverse(ops, &pernet_list, list) {
+ if (ops->exit)
+ ops->exit(net);
+ }
+
+ mutex_unlock(&net_mutex);
+
+ /* Ensure there are no outstanding rcu callbacks using this
+ * network namespace.
+ */
+ rcu_barrier();
+
+ /* Finally it is safe to free my network namespace structure */
+ net_free(net);
+}
+
+void __put_net(struct net *net)
+{
+ /* Cleanup the network namespace in process context */
+ INIT_WORK(&net->work, cleanup_net);
+ schedule_work(&net->work);
+}
+EXPORT_SYMBOL_GPL(__put_net);
+
+#else
+struct net *copy_net_ns(unsigned long flags, struct net *old_net)
+{
+ if (flags & CLONE_NEWNET)
+ return ERR_PTR(-EINVAL);
+ return old_net;
+}
+#endif
+
static int __init net_ns_init(void)
{
int err;
printk(KERN_INFO "net_namespace: %zd bytes\n", sizeof(struct net));
+#ifdef CONFIG_NET_NS
net_cachep = kmem_cache_create("net_namespace", sizeof(struct net),
SMP_CACHE_BYTES,
SLAB_PANIC, NULL);
+#endif
mutex_lock(&net_mutex);
err = setup_net(&init_net);
@@ -187,29 +194,28 @@ static int register_pernet_operations(struct list_head *list,
struct net *net, *undo_net;
int error;
- error = 0;
list_add_tail(&ops->list, list);
- for_each_net(net) {
- if (ops->init) {
+ if (ops->init) {
+ for_each_net(net) {
error = ops->init(net);
if (error)
goto out_undo;
}
}
-out:
- return error;
+ return 0;
out_undo:
/* If I have an error cleanup all namespaces I initialized */
list_del(&ops->list);
- for_each_net(undo_net) {
- if (undo_net == net)
- goto undone;
- if (ops->exit)
+ if (ops->exit) {
+ for_each_net(undo_net) {
+ if (undo_net == net)
+ goto undone;
ops->exit(undo_net);
+ }
}
undone:
- goto out;
+ return error;
}
static void unregister_pernet_operations(struct pernet_operations *ops)
@@ -217,8 +223,8 @@ static void unregister_pernet_operations(struct pernet_operations *ops)
struct net *net;
list_del(&ops->list);
- for_each_net(net)
- if (ops->exit)
+ if (ops->exit)
+ for_each_net(net)
ops->exit(net);
}
diff --git a/net/core/sock.c b/net/core/sock.c
index bba9949681f..12ad2067a98 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -857,46 +857,43 @@ static inline void sock_lock_init(struct sock *sk)
af_family_keys + sk->sk_family);
}
-/**
- * sk_alloc - All socket objects are allocated here
- * @net: the applicable net namespace
- * @family: protocol family
- * @priority: for allocation (%GFP_KERNEL, %GFP_ATOMIC, etc)
- * @prot: struct proto associated with this new sock instance
- * @zero_it: if we should zero the newly allocated sock
- */
-struct sock *sk_alloc(struct net *net, int family, gfp_t priority,
- struct proto *prot, int zero_it)
+static void sock_copy(struct sock *nsk, const struct sock *osk)
+{
+#ifdef CONFIG_SECURITY_NETWORK
+ void *sptr = nsk->sk_security;
+#endif
+
+ memcpy(nsk, osk, osk->sk_prot->obj_size);
+#ifdef CONFIG_SECURITY_NETWORK
+ nsk->sk_security = sptr;
+ security_sk_clone(osk, nsk);
+#endif
+}
+
+static struct sock *sk_prot_alloc(struct proto *prot, gfp_t priority,
+ int family)
{
- struct sock *sk = NULL;
- struct kmem_cache *slab = prot->slab;
+ struct sock *sk;
+ struct kmem_cache *slab;
+ slab = prot->slab;
if (slab != NULL)
sk = kmem_cache_alloc(slab, priority);
else
sk = kmalloc(prot->obj_size, priority);
- if (sk) {
- if (zero_it) {
- memset(sk, 0, prot->obj_size);
- sk->sk_family = family;
- /*
- * See comment in struct sock definition to understand
- * why we need sk_prot_creator -acme
- */
- sk->sk_prot = sk->sk_prot_creator = prot;
- sock_lock_init(sk);
- sk->sk_net = get_net(net);
- }
-
+ if (sk != NULL) {
if (security_sk_alloc(sk, family, priority))
goto out_free;
if (!try_module_get(prot->owner))
- goto out_free;
+ goto out_free_sec;
}
+
return sk;
+out_free_sec:
+ security_sk_free(sk);
out_free:
if (slab != NULL)
kmem_cache_free(slab, sk);
@@ -905,10 +902,53 @@ out_free:
return NULL;
}
+static void sk_prot_free(struct proto *prot, struct sock *sk)
+{
+ struct kmem_cache *slab;
+ struct module *owner;
+
+ owner = prot->owner;
+ slab = prot->slab;
+
+ security_sk_free(sk);
+ if (slab != NULL)
+ kmem_cache_free(slab, sk);
+ else
+ kfree(sk);
+ module_put(owner);
+}
+
+/**
+ * sk_alloc - All socket objects are allocated here
+ * @net: the applicable net namespace
+ * @family: protocol family
+ * @priority: for allocation (%GFP_KERNEL, %GFP_ATOMIC, etc)
+ * @prot: struct proto associated with this new sock instance
+ * @zero_it: if we should zero the newly allocated sock
+ */
+struct sock *sk_alloc(struct net *net, int family, gfp_t priority,
+ struct proto *prot)
+{
+ struct sock *sk;
+
+ sk = sk_prot_alloc(prot, priority | __GFP_ZERO, family);
+ if (sk) {
+ sk->sk_family = family;
+ /*
+ * See comment in struct sock definition to understand
+ * why we need sk_prot_creator -acme
+ */
+ sk->sk_prot = sk->sk_prot_creator = prot;
+ sock_lock_init(sk);
+ sk->sk_net = get_net(net);
+ }
+
+ return sk;
+}
+
void sk_free(struct sock *sk)
{
struct sk_filter *filter;
- struct module *owner = sk->sk_prot_creator->owner;
if (sk->sk_destruct)
sk->sk_destruct(sk);
@@ -925,25 +965,22 @@ void sk_free(struct sock *sk)
printk(KERN_DEBUG "%s: optmem leakage (%d bytes) detected.\n",
__FUNCTION__, atomic_read(&sk->sk_omem_alloc));
- security_sk_free(sk);
put_net(sk->sk_net);
- if (sk->sk_prot_creator->slab != NULL)
- kmem_cache_free(sk->sk_prot_creator->slab, sk);
- else
- kfree(sk);
- module_put(owner);
+ sk_prot_free(sk->sk_prot_creator, sk);
}
struct sock *sk_clone(const struct sock *sk, const gfp_t priority)
{
- struct sock *newsk = sk_alloc(sk->sk_net, sk->sk_family, priority, sk->sk_prot, 0);
+ struct sock *newsk;
+ newsk = sk_prot_alloc(sk->sk_prot, priority, sk->sk_family);
if (newsk != NULL) {
struct sk_filter *filter;
sock_copy(newsk, sk);
/* SANITY */
+ get_net(newsk->sk_net);
sk_node_init(&newsk->sk_node);
sock_lock_init(newsk);
bh_lock_sock(newsk);
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index aabe98d9402..57d57495183 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -474,7 +474,7 @@ static struct proto dn_proto = {
static struct sock *dn_alloc_sock(struct net *net, struct socket *sock, gfp_t gfp)
{
struct dn_scp *scp;
- struct sock *sk = sk_alloc(net, PF_DECnet, gfp, &dn_proto, 1);
+ struct sock *sk = sk_alloc(net, PF_DECnet, gfp, &dn_proto);
if (!sk)
goto out;
diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c
index 9cae16b4e0b..f70df073c58 100644
--- a/net/econet/af_econet.c
+++ b/net/econet/af_econet.c
@@ -624,7 +624,7 @@ static int econet_create(struct net *net, struct socket *sock, int protocol)
sock->state = SS_UNCONNECTED;
err = -ENOBUFS;
- sk = sk_alloc(net, PF_ECONET, GFP_KERNEL, &econet_proto, 1);
+ sk = sk_alloc(net, PF_ECONET, GFP_KERNEL, &econet_proto);
if (sk == NULL)
goto out;
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 621b128897d..d2f22e74b26 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -323,7 +323,7 @@ lookup_protocol:
BUG_TRAP(answer_prot->slab != NULL);
err = -ENOBUFS;
- sk = sk_alloc(net, PF_INET, GFP_KERNEL, answer_prot, 1);
+ sk = sk_alloc(net, PF_INET, GFP_KERNEL, answer_prot);
if (sk == NULL)
goto out;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 69d8c38ccd3..ca9590f4f52 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1330,12 +1330,15 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_
cached_fack_count = 0;
}
- for (i=0; i<num_sacks; i++, sp++) {
+ for (i = 0; i < num_sacks; i++) {
struct sk_buff *skb;
__u32 start_seq = ntohl(sp->start_seq);
__u32 end_seq = ntohl(sp->end_seq);
int fack_count;
int dup_sack = (found_dup_sack && (i == first_sack_index));
+ int next_dup = (found_dup_sack && (i+1 == first_sack_index));
+
+ sp++;
if (!tcp_is_sackblock_valid(tp, dup_sack, start_seq, end_seq)) {
if (dup_sack) {
@@ -1361,7 +1364,7 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_
flag |= FLAG_DATA_LOST;
tcp_for_write_queue_from(skb, sk) {
- int in_sack;
+ int in_sack = 0;
u8 sacked;
if (skb == tcp_send_head(sk))
@@ -1380,7 +1383,23 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_
if (!before(TCP_SKB_CB(skb)->seq, end_seq))
break;
- in_sack = tcp_match_skb_to_sack(sk, skb, start_seq, end_seq);
+ dup_sack = (found_dup_sack && (i == first_sack_index));
+
+ /* Due to sorting DSACK may reside within this SACK block! */
+ if (next_dup) {
+ u32 dup_start = ntohl(sp->start_seq);
+ u32 dup_end = ntohl(sp->end_seq);
+
+ if (before(TCP_SKB_CB(skb)->seq, dup_end)) {
+ in_sack = tcp_match_skb_to_sack(sk, skb, dup_start, dup_end);
+ if (in_sack > 0)
+ dup_sack = 1;
+ }
+ }
+
+ /* DSACK info lost if out-of-mem, try SACK still */
+ if (in_sack <= 0)
+ in_sack = tcp_match_skb_to_sack(sk, skb, start_seq, end_seq);
if (in_sack < 0)
break;
@@ -2059,7 +2078,7 @@ static void tcp_update_scoreboard(struct sock *sk)
if (!tcp_skb_timedout(sk, skb))
break;
- if (!(TCP_SKB_CB(skb)->sacked&TCPCB_TAGBITS)) {
+ if (!(TCP_SKB_CB(skb)->sacked & (TCPCB_SACKED_ACKED|TCPCB_LOST))) {
TCP_SKB_CB(skb)->sacked |= TCPCB_LOST;
tp->lost_out += tcp_skb_pcount(skb);
tcp_verify_retransmit_hint(tp, skb);
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 1b1caf3aa1c..ecbd38894fd 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -162,7 +162,7 @@ lookup_protocol:
BUG_TRAP(answer_prot->slab != NULL);
err = -ENOBUFS;
- sk = sk_alloc(net, PF_INET6, GFP_KERNEL, answer_prot, 1);
+ sk = sk_alloc(net, PF_INET6, GFP_KERNEL, answer_prot);
if (sk == NULL)
goto out;
diff --git a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c
index 29b063d4312..a195a66e0cc 100644
--- a/net/ipx/af_ipx.c
+++ b/net/ipx/af_ipx.c
@@ -1381,7 +1381,7 @@ static int ipx_create(struct net *net, struct socket *sock, int protocol)
goto out;
rc = -ENOMEM;
- sk = sk_alloc(net, PF_IPX, GFP_KERNEL, &ipx_proto, 1);
+ sk = sk_alloc(net, PF_IPX, GFP_KERNEL, &ipx_proto);
if (!sk)
goto out;
#ifdef IPX_REFCNT_DEBUG
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index 0328ae2654f..48ce59a6e02 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -1078,7 +1078,7 @@ static int irda_create(struct net *net, struct socket *sock, int protocol)
}
/* Allocate networking socket */
- sk = sk_alloc(net, PF_IRDA, GFP_ATOMIC, &irda_proto, 1);
+ sk = sk_alloc(net, PF_IRDA, GFP_ATOMIC, &irda_proto);
if (sk == NULL)
return -ENOMEM;
diff --git a/net/irda/irnet/irnet_ppp.c b/net/irda/irnet/irnet_ppp.c
index 2f9f8dce5a6..e0eab5927c4 100644
--- a/net/irda/irnet/irnet_ppp.c
+++ b/net/irda/irnet/irnet_ppp.c
@@ -731,15 +731,25 @@ dev_irnet_ioctl(struct inode * inode,
/* Get termios */
case TCGETS:
DEBUG(FS_INFO, "Get termios.\n");
+#ifndef TCGETS2
if(kernel_termios_to_user_termios((struct termios __user *)argp, &ap->termios))
break;
+#else
+ if(kernel_termios_to_user_termios_1((struct termios __user *)argp, &ap->termios))
+ break;
+#endif
err = 0;
break;
/* Set termios */
case TCSETSF:
DEBUG(FS_INFO, "Set termios.\n");
+#ifndef TCGETS2
if(user_termios_to_kernel_termios(&ap->termios, (struct termios __user *)argp))
break;
+#else
+ if(user_termios_to_kernel_termios_1(&ap->termios, (struct termios __user *)argp))
+ break;
+#endif
err = 0;
break;
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index 43e01c8d382..aef66458035 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -216,7 +216,7 @@ static struct sock *iucv_sock_alloc(struct socket *sock, int proto, gfp_t prio)
{
struct sock *sk;
- sk = sk_alloc(&init_net, PF_IUCV, prio, &iucv_proto, 1);
+ sk = sk_alloc(&init_net, PF_IUCV, prio, &iucv_proto);
if (!sk)
return NULL;
diff --git a/net/key/af_key.c b/net/key/af_key.c
index 266f112c38c..10c89d47f68 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -152,7 +152,7 @@ static int pfkey_create(struct net *net, struct socket *sock, int protocol)
return -EPROTONOSUPPORT;
err = -ENOMEM;
- sk = sk_alloc(net, PF_KEY, GFP_KERNEL, &key_proto, 1);
+ sk = sk_alloc(net, PF_KEY, GFP_KERNEL, &key_proto);
if (sk == NULL)
goto out;
diff --git a/net/llc/llc_conn.c b/net/llc/llc_conn.c
index 8ebc2769dfd..5c0b484237c 100644
--- a/net/llc/llc_conn.c
+++ b/net/llc/llc_conn.c
@@ -869,7 +869,7 @@ static void llc_sk_init(struct sock* sk)
*/
struct sock *llc_sk_alloc(struct net *net, int family, gfp_t priority, struct proto *prot)
{
- struct sock *sk = sk_alloc(net, family, priority, prot, 1);
+ struct sock *sk = sk_alloc(net, family, priority, prot);
if (!sk)
goto out;
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 4f994c0fb3f..26017125557 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -396,7 +396,7 @@ static int __netlink_create(struct net *net, struct socket *sock,
sock->ops = &netlink_ops;
- sk = sk_alloc(net, PF_NETLINK, GFP_KERNEL, &netlink_proto, 1);
+ sk = sk_alloc(net, PF_NETLINK, GFP_KERNEL, &netlink_proto);
if (!sk)
return -ENOMEM;
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 3a4d479ea64..972250c974f 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -423,7 +423,8 @@ static int nr_create(struct net *net, struct socket *sock, int protocol)
if (sock->type != SOCK_SEQPACKET || protocol != 0)
return -ESOCKTNOSUPPORT;
- if ((sk = sk_alloc(net, PF_NETROM, GFP_ATOMIC, &nr_proto, 1)) == NULL)
+ sk = sk_alloc(net, PF_NETROM, GFP_ATOMIC, &nr_proto);
+ if (sk == NULL)
return -ENOMEM;
nr = nr_sk(sk);
@@ -465,7 +466,8 @@ static struct sock *nr_make_new(struct sock *osk)
if (osk->sk_type != SOCK_SEQPACKET)
return NULL;
- if ((sk = sk_alloc(osk->sk_net, PF_NETROM, GFP_ATOMIC, osk->sk_prot, 1)) == NULL)
+ sk = sk_alloc(osk->sk_net, PF_NETROM, GFP_ATOMIC, osk->sk_prot);
+ if (sk == NULL)
return NULL;
nr = nr_sk(sk);
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index d0936506b73..4cb2dfba099 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -995,7 +995,7 @@ static int packet_create(struct net *net, struct socket *sock, int protocol)
sock->state = SS_UNCONNECTED;
err = -ENOBUFS;
- sk = sk_alloc(net, PF_PACKET, GFP_KERNEL, &packet_proto, 1);
+ sk = sk_alloc(net, PF_PACKET, GFP_KERNEL, &packet_proto);
if (sk == NULL)
goto out;
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index 509defe53ee..ed2d65cd801 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -513,7 +513,8 @@ static int rose_create(struct net *net, struct socket *sock, int protocol)
if (sock->type != SOCK_SEQPACKET || protocol != 0)
return -ESOCKTNOSUPPORT;
- if ((sk = sk_alloc(net, PF_ROSE, GFP_ATOMIC, &rose_proto, 1)) == NULL)
+ sk = sk_alloc(net, PF_ROSE, GFP_ATOMIC, &rose_proto);
+ if (sk == NULL)
return -ENOMEM;
rose = rose_sk(sk);
@@ -551,7 +552,8 @@ static struct sock *rose_make_new(struct sock *osk)
if (osk->sk_type != SOCK_SEQPACKET)
return NULL;
- if ((sk = sk_alloc(osk->sk_net, PF_ROSE, GFP_ATOMIC, &rose_proto, 1)) == NULL)
+ sk = sk_alloc(osk->sk_net, PF_ROSE, GFP_ATOMIC, &rose_proto);
+ if (sk == NULL)
return NULL;
rose = rose_sk(sk);
diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
index c680017f5c8..d6389450c4b 100644
--- a/net/rxrpc/af_rxrpc.c
+++ b/net/rxrpc/af_rxrpc.c
@@ -627,7 +627,7 @@ static int rxrpc_create(struct net *net, struct socket *sock, int protocol)
sock->ops = &rxrpc_rpc_ops;
sock->state = SS_UNCONNECTED;
- sk = sk_alloc(net, PF_RXRPC, GFP_KERNEL, &rxrpc_proto, 1);
+ sk = sk_alloc(net, PF_RXRPC, GFP_KERNEL, &rxrpc_proto);
if (!sk)
return -ENOMEM;
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index eb4deaf5891..7f31ff638bc 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -631,7 +631,7 @@ static struct sock *sctp_v6_create_accept_sk(struct sock *sk,
struct ipv6_pinfo *newnp, *np = inet6_sk(sk);
struct sctp6_sock *newsctp6sk;
- newsk = sk_alloc(sk->sk_net, PF_INET6, GFP_KERNEL, sk->sk_prot, 1);
+ newsk = sk_alloc(sk->sk_net, PF_INET6, GFP_KERNEL, sk->sk_prot);
if (!newsk)
goto out;
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index f5cd96f5fe7..40c1a47d1b8 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -552,7 +552,8 @@ static struct sock *sctp_v4_create_accept_sk(struct sock *sk,
{
struct inet_sock *inet = inet_sk(sk);
struct inet_sock *newinet;
- struct sock *newsk = sk_alloc(sk->sk_net, PF_INET, GFP_KERNEL, sk->sk_prot, 1);
+ struct sock *newsk = sk_alloc(sk->sk_net, PF_INET, GFP_KERNEL,
+ sk->sk_prot);
if (!newsk)
goto out;
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index e36b4b5a522..6b792265dc0 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -201,7 +201,7 @@ static int tipc_create(struct net *net, struct socket *sock, int protocol)
return -EPROTOTYPE;
}
- sk = sk_alloc(net, AF_TIPC, GFP_KERNEL, &tipc_proto, 1);
+ sk = sk_alloc(net, AF_TIPC, GFP_KERNEL, &tipc_proto);
if (!sk) {
tipc_deleteport(ref);
return -ENOMEM;
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 9163ec526c2..515e7a692f9 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -602,7 +602,7 @@ static struct sock * unix_create1(struct net *net, struct socket *sock)
if (atomic_read(&unix_nr_socks) >= 2*get_max_files())
goto out;
- sk = sk_alloc(net, PF_UNIX, GFP_KERNEL, &unix_proto, 1);
+ sk = sk_alloc(net, PF_UNIX, GFP_KERNEL, &unix_proto);
if (!sk)
goto out;
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index fc416f9606a..92cfe8e3e0b 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -472,7 +472,7 @@ static struct proto x25_proto = {
static struct sock *x25_alloc_socket(struct net *net)
{
struct x25_sock *x25;
- struct sock *sk = sk_alloc(net, AF_X25, GFP_ATOMIC, &x25_proto, 1);
+ struct sock *sk = sk_alloc(net, AF_X25, GFP_ATOMIC, &x25_proto);
if (!sk)
goto out;