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netns: Use net_eq() to compare net-namespaces for optimization.

Browse source 
Without CONFIG_NET_NS, namespace is always &init_net.
Compiler will be able to omit namespace comparisons with this patch.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
YOSHIFUJI Hideaki 2008-07-19 22:34:43 -07:00 • committed by David S. Miller
parent 407d819cf0
commit 721499e893
38 changed files with 58 additions and 58 deletions

4
net/appletalk/aarp.c
View file

@ -333,7 +333,7 @@ static int aarp_device_event(struct notifier_block *this, unsigned long event,
struct net_device *dev = ptr;
int ct;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
if (event == NETDEV_DOWN) {
@ -716,7 +716,7 @@ static int aarp_rcv(struct sk_buff *skb, struct net_device *dev,
struct atalk_addr sa, *ma, da;
struct atalk_iface *ifa;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
goto out0;
/* We only do Ethernet SNAP AARP. */

6
net/appletalk/ddp.c
View file

@ -648,7 +648,7 @@ static int ddp_device_event(struct notifier_block *this, unsigned long event,
{
struct net_device *dev = ptr;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
if (event == NETDEV_DOWN)
@ -1405,7 +1405,7 @@ static int atalk_rcv(struct sk_buff *skb, struct net_device *dev,
int origlen;
__u16 len_hops;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
goto freeit;
/* Don't mangle buffer if shared */
@ -1493,7 +1493,7 @@ static int atalk_rcv(struct sk_buff *skb, struct net_device *dev,
static int ltalk_rcv(struct sk_buff *skb, struct net_device *dev,
struct packet_type *pt, struct net_device *orig_dev)
{
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
goto freeit;
/* Expand any short form frames */

2
net/atm/clip.c
View file

@ -612,7 +612,7 @@ static int clip_device_event(struct notifier_block *this, unsigned long event,
{
struct net_device *dev = arg;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
if (event == NETDEV_UNREGISTER) {

2
net/atm/mpc.c
View file

@ -964,7 +964,7 @@ static int mpoa_event_listener(struct notifier_block *mpoa_notifier, unsigned lo
dev = (struct net_device *)dev_ptr;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
if (dev->name == NULL || strncmp(dev->name, "lec", 3))

2
net/ax25/af_ax25.c
View file

@ -116,7 +116,7 @@ static int ax25_device_event(struct notifier_block *this, unsigned long event,
{
struct net_device *dev = (struct net_device *)ptr;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
/* Reject non AX.25 devices */

2
net/ax25/ax25_in.c
View file

@ -451,7 +451,7 @@ int ax25_kiss_rcv(struct sk_buff *skb, struct net_device *dev,
skb->sk = NULL; /* Initially we don't know who it's for */
skb->destructor = NULL; /* Who initializes this, dammit?! */
if (dev_net(dev) != &init_net) {
if (!net_eq(dev_net(dev), &init_net)) {
kfree_skb(skb);
return 0;
}

2
net/bridge/br_notify.c
View file

@ -35,7 +35,7 @@ static int br_device_event(struct notifier_block *unused, unsigned long event, v
struct net_bridge_port *p = dev->br_port;
struct net_bridge *br;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
/* not a port of a bridge */

2
net/bridge/br_stp_bpdu.c
View file

@ -140,7 +140,7 @@ void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb,
struct net_bridge *br;
const unsigned char *buf;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
goto err;
if (!p)

4
net/can/af_can.c
View file

@ -615,7 +615,7 @@ static int can_rcv(struct sk_buff *skb, struct net_device *dev,
struct can_frame *cf = (struct can_frame *)skb->data;
int matches;
if (dev->type != ARPHRD_CAN || dev_net(dev) != &init_net) {
if (dev->type != ARPHRD_CAN || !net_eq(dev_net(dev), &init_net)) {
kfree_skb(skb);
return 0;
}
@ -728,7 +728,7 @@ static int can_notifier(struct notifier_block *nb, unsigned long msg,
struct net_device *dev = (struct net_device *)data;
struct dev_rcv_lists *d;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
if (dev->type != ARPHRD_CAN)

2
net/can/bcm.c
View file

@ -1303,7 +1303,7 @@ static int bcm_notifier(struct notifier_block *nb, unsigned long msg,
struct bcm_op *op;
int notify_enodev = 0;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
if (dev->type != ARPHRD_CAN)

2
net/can/raw.c
View file

@ -210,7 +210,7 @@ static int raw_notifier(struct notifier_block *nb,
struct raw_sock *ro = container_of(nb, struct raw_sock, notifier);
struct sock *sk = &ro->sk;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
if (dev->type != ARPHRD_CAN)

2
net/core/pktgen.c
View file

@ -1875,7 +1875,7 @@ static int pktgen_device_event(struct notifier_block *unused,
{
struct net_device *dev = ptr;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
/* It is OK that we do not hold the group lock right now,

2
net/decnet/af_decnet.c
View file

@ -2089,7 +2089,7 @@ static int dn_device_event(struct notifier_block *this, unsigned long event,
{
struct net_device *dev = (struct net_device *)ptr;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
switch(event) {

2
net/decnet/dn_route.c
View file

@ -580,7 +580,7 @@ int dn_route_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type
struct dn_dev *dn = (struct dn_dev *)dev->dn_ptr;
unsigned char padlen = 0;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
goto dump_it;
if (dn == NULL)

4
net/econet/af_econet.c
View file

@ -1062,7 +1062,7 @@ static int econet_rcv(struct sk_buff *skb, struct net_device *dev, struct packet
struct sock *sk;
struct ec_device *edev = dev->ec_ptr;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
goto drop;
if (skb->pkt_type == PACKET_OTHERHOST)
@ -1119,7 +1119,7 @@ static int econet_notifier(struct notifier_block *this, unsigned long msg, void
struct net_device *dev = (struct net_device *)data;
struct ec_device *edev;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
switch (msg) {

26
net/ipv4/igmp.c
View file

@ -1196,7 +1196,7 @@ void ip_mc_inc_group(struct in_device *in_dev, __be32 addr)
ASSERT_RTNL();
if (dev_net(in_dev->dev) != &init_net)
if (!net_eq(dev_net(in_dev->dev), &init_net))
return;
for (im=in_dev->mc_list; im; im=im->next) {
@ -1278,7 +1278,7 @@ void ip_mc_dec_group(struct in_device *in_dev, __be32 addr)
ASSERT_RTNL();
if (dev_net(in_dev->dev) != &init_net)
if (!net_eq(dev_net(in_dev->dev), &init_net))
return;
for (ip=&in_dev->mc_list; (i=*ip)!=NULL; ip=&i->next) {
@ -1308,7 +1308,7 @@ void ip_mc_down(struct in_device *in_dev)
ASSERT_RTNL();
if (dev_net(in_dev->dev) != &init_net)
if (!net_eq(dev_net(in_dev->dev), &init_net))
return;
for (i=in_dev->mc_list; i; i=i->next)
@ -1331,7 +1331,7 @@ void ip_mc_init_dev(struct in_device *in_dev)
{
ASSERT_RTNL();
if (dev_net(in_dev->dev) != &init_net)
if (!net_eq(dev_net(in_dev->dev), &init_net))
return;
in_dev->mc_tomb = NULL;
@ -1357,7 +1357,7 @@ void ip_mc_up(struct in_device *in_dev)
ASSERT_RTNL();
if (dev_net(in_dev->dev) != &init_net)
if (!net_eq(dev_net(in_dev->dev), &init_net))
return;
ip_mc_inc_group(in_dev, IGMP_ALL_HOSTS);
@ -1376,7 +1376,7 @@ void ip_mc_destroy_dev(struct in_device *in_dev)
ASSERT_RTNL();
if (dev_net(in_dev->dev) != &init_net)
if (!net_eq(dev_net(in_dev->dev), &init_net))
return;
/* Deactivate timers */
@ -1760,7 +1760,7 @@ int ip_mc_join_group(struct sock *sk , struct ip_mreqn *imr)
if (!ipv4_is_multicast(addr))
return -EINVAL;
if (sock_net(sk) != &init_net)
if (!net_eq(sock_net(sk), &init_net))
return -EPROTONOSUPPORT;
rtnl_lock();
@ -1831,7 +1831,7 @@ int ip_mc_leave_group(struct sock *sk, struct ip_mreqn *imr)
u32 ifindex;
int ret = -EADDRNOTAVAIL;
if (sock_net(sk) != &init_net)
if (!net_eq(sock_net(sk), &init_net))
return -EPROTONOSUPPORT;
rtnl_lock();
@ -1879,7 +1879,7 @@ int ip_mc_source(int add, int omode, struct sock *sk, struct
if (!ipv4_is_multicast(addr))
return -EINVAL;
if (sock_net(sk) != &init_net)
if (!net_eq(sock_net(sk), &init_net))
return -EPROTONOSUPPORT;
rtnl_lock();
@ -2015,7 +2015,7 @@ int ip_mc_msfilter(struct sock *sk, struct ip_msfilter *msf, int ifindex)
msf->imsf_fmode != MCAST_EXCLUDE)
return -EINVAL;
if (sock_net(sk) != &init_net)
if (!net_eq(sock_net(sk), &init_net))
return -EPROTONOSUPPORT;
rtnl_lock();
@ -2098,7 +2098,7 @@ int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
if (!ipv4_is_multicast(addr))
return -EINVAL;
if (sock_net(sk) != &init_net)
if (!net_eq(sock_net(sk), &init_net))
return -EPROTONOSUPPORT;
rtnl_lock();
@ -2163,7 +2163,7 @@ int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
if (!ipv4_is_multicast(addr))
return -EINVAL;
if (sock_net(sk) != &init_net)
if (!net_eq(sock_net(sk), &init_net))
return -EPROTONOSUPPORT;
rtnl_lock();
@ -2250,7 +2250,7 @@ void ip_mc_drop_socket(struct sock *sk)
if (inet->mc_list == NULL)
return;
if (sock_net(sk) != &init_net)
if (!net_eq(sock_net(sk), &init_net))
return;
rtnl_lock();

4
net/ipv4/ipconfig.c
View file

@ -432,7 +432,7 @@ ic_rarp_recv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
unsigned char *sha, *tha; /* s for "source", t for "target" */
struct ic_device *d;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
goto drop;
if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL)
@ -852,7 +852,7 @@ static int __init ic_bootp_recv(struct sk_buff *skb, struct net_device *dev, str
struct ic_device *d;
int len, ext_len;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
goto drop;
/* Perform verifications before taking the lock. */

2
net/ipv4/ipmr.c
View file

@ -1124,7 +1124,7 @@ static int ipmr_device_event(struct notifier_block *this, unsigned long event, v
struct vif_device *v;
int ct;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
if (event != NETDEV_UNREGISTER)

2
net/ipv4/netfilter/ip_queue.c
View file

@ -477,7 +477,7 @@ ipq_rcv_dev_event(struct notifier_block *this,
{
struct net_device *dev = ptr;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
/* Drop any packets associated with the downed device */

2
net/ipv4/netfilter/ipt_MASQUERADE.c
View file

@ -120,7 +120,7 @@ static int masq_device_event(struct notifier_block *this,
{
const struct net_device *dev = ptr;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
if (event == NETDEV_DOWN) {

2
net/ipv6/ip6mr.c
View file

@ -935,7 +935,7 @@ static int ip6mr_device_event(struct notifier_block *this,
struct mif_device *v;
int ct;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
if (event != NETDEV_UNREGISTER)

2
net/ipv6/netfilter/ip6_queue.c
View file

@ -480,7 +480,7 @@ ipq_rcv_dev_event(struct notifier_block *this,
{
struct net_device *dev = ptr;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
/* Drop any packets associated with the downed device */

2
net/ipv6/proc.c
View file

@ -214,7 +214,7 @@ int snmp6_register_dev(struct inet6_dev *idev)
if (!idev || !idev->dev)
return -EINVAL;
if (dev_net(idev->dev) != &init_net)
if (!net_eq(dev_net(idev->dev), &init_net))
return 0;
if (!proc_net_devsnmp6)

4
net/ipx/af_ipx.c
View file

@ -335,7 +335,7 @@ static int ipxitf_device_event(struct notifier_block *notifier,
struct net_device *dev = ptr;
struct ipx_interface *i, *tmp;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
if (event != NETDEV_DOWN && event != NETDEV_UP)
@ -1636,7 +1636,7 @@ static int ipx_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_ty
u16 ipx_pktsize;
int rc = 0;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
goto drop;
/* Not ours */

2
net/irda/irlap_frame.c
View file

@ -1326,7 +1326,7 @@ int irlap_driver_rcv(struct sk_buff *skb, struct net_device *dev,
int command;
__u8 control;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
goto out;
/* FIXME: should we get our own field? */

2
net/llc/llc_input.c
View file

@ -150,7 +150,7 @@ int llc_rcv(struct sk_buff *skb, struct net_device *dev,
int (*rcv)(struct sk_buff *, struct net_device *,
struct packet_type *, struct net_device *);
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
goto drop;
/*

2
net/netfilter/nf_sockopt.c
View file

@ -65,7 +65,7 @@ static struct nf_sockopt_ops *nf_sockopt_find(struct sock *sk, int pf,
{
struct nf_sockopt_ops *ops;
if (sock_net(sk) != &init_net)
if (!net_eq(sock_net(sk), &init_net))
return ERR_PTR(-ENOPROTOOPT);
if (mutex_lock_interruptible(&nf_sockopt_mutex) != 0)

2
net/netfilter/nfnetlink_queue.c
View file

@ -555,7 +555,7 @@ nfqnl_rcv_dev_event(struct notifier_block *this,
{
struct net_device *dev = ptr;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
/* Drop any packets associated with the downed device */

2
net/netlabel/netlabel_unlabeled.c
View file

@ -954,7 +954,7 @@ static int netlbl_unlhsh_netdev_handler(struct notifier_block *this,
struct net_device *dev = ptr;
struct netlbl_unlhsh_iface *iface = NULL;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
/* XXX - should this be a check for NETDEV_DOWN or _UNREGISTER? */

2
net/netrom/af_netrom.c
View file

@ -118,7 +118,7 @@ static int nr_device_event(struct notifier_block *this, unsigned long event, voi
{
struct net_device *dev = (struct net_device *)ptr;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
if (event != NETDEV_DOWN)

2
net/packet/af_packet.c
View file

@ -1677,7 +1677,7 @@ static int packet_ioctl(struct socket *sock, unsigned int cmd,
case SIOCGIFDSTADDR:
case SIOCSIFDSTADDR:
case SIOCSIFFLAGS:
if (sock_net(sk) != &init_net)
if (!net_eq(sock_net(sk), &init_net))
return -ENOIOCTLCMD;
return inet_dgram_ops.ioctl(sock, cmd, arg);
#endif

2
net/rose/af_rose.c
View file

@ -209,7 +209,7 @@ static int rose_device_event(struct notifier_block *this, unsigned long event,
{
struct net_device *dev = (struct net_device *)ptr;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
if (event != NETDEV_DOWN)

2
net/sctp/protocol.c
View file

@ -668,7 +668,7 @@ static int sctp_inetaddr_event(struct notifier_block *this, unsigned long ev,
struct sctp_sockaddr_entry *temp;
int found = 0;
if (dev_net(ifa->ifa_dev->dev) != &init_net)
if (!net_eq(dev_net(ifa->ifa_dev->dev), &init_net))
return NOTIFY_DONE;
switch (ev) {

4
net/tipc/eth_media.c
View file

@ -101,7 +101,7 @@ static int recv_msg(struct sk_buff *buf, struct net_device *dev,
struct eth_bearer *eb_ptr = (struct eth_bearer *)pt->af_packet_priv;
u32 size;
if (dev_net(dev) != &init_net) {
if (!net_eq(dev_net(dev), &init_net)) {
kfree_skb(buf);
return 0;
}
@ -198,7 +198,7 @@ static int recv_notification(struct notifier_block *nb, unsigned long evt,
struct eth_bearer *eb_ptr = &eth_bearers[0];
struct eth_bearer *stop = &eth_bearers[MAX_ETH_BEARERS];
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
while ((eb_ptr->dev != dev)) {

2
net/wireless/wext.c
View file

@ -1299,7 +1299,7 @@ static void rtmsg_iwinfo(struct net_device *dev, char *event, int event_len)
struct sk_buff *skb;
int err;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return;
skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);

2
net/x25/af_x25.c
View file

@ -191,7 +191,7 @@ static int x25_device_event(struct notifier_block *this, unsigned long event,
struct net_device *dev = ptr;
struct x25_neigh *nb;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
if (dev->type == ARPHRD_X25

2
net/x25/x25_dev.c
View file

@ -95,7 +95,7 @@ int x25_lapb_receive_frame(struct sk_buff *skb, struct net_device *dev,
struct sk_buff *nskb;
struct x25_neigh *nb;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
goto drop;
nskb = skb_copy(skb, GFP_ATOMIC);

2
net/xfrm/xfrm_policy.c
View file

@ -2360,7 +2360,7 @@ static int xfrm_dev_event(struct notifier_block *this, unsigned long event, void
{
struct net_device *dev = ptr;
if (dev_net(dev) != &init_net)
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
switch (event) {