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authorYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2008-07-20 09:34:43 +0400
committerDavid S. Miller <davem@davemloft.net>2008-07-20 09:34:43 +0400
commit721499e8931c5732202481ae24f2dfbf9910f129 (patch)
treec94d8d681966109bb41f712f21f3a9825ae2172d /net/ipv4
parent407d819cf0fd54c6fc1138a509225696aecafd15 (diff)
downloadlinux-721499e8931c5732202481ae24f2dfbf9910f129.tar.xz
netns: Use net_eq() to compare net-namespaces for optimization.
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>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/igmp.c26
-rw-r--r--net/ipv4/ipconfig.c4
-rw-r--r--net/ipv4/ipmr.c2
-rw-r--r--net/ipv4/netfilter/ip_queue.c2
-rw-r--r--net/ipv4/netfilter/ipt_MASQUERADE.c2
5 files changed, 18 insertions, 18 deletions
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 68e84a933e90..6203ece53606 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -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();
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index b88aa9afa42e..42065fff46c4 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -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. */
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 033c712c3a5d..c519b8d30eee 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -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)
diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c
index aa33a4a7a715..432ce9d1c11c 100644
--- a/net/ipv4/netfilter/ip_queue.c
+++ b/net/ipv4/netfilter/ip_queue.c
@@ -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 */
diff --git a/net/ipv4/netfilter/ipt_MASQUERADE.c b/net/ipv4/netfilter/ipt_MASQUERADE.c
index 84c26dd27d81..0841aefaa503 100644
--- a/net/ipv4/netfilter/ipt_MASQUERADE.c
+++ b/net/ipv4/netfilter/ipt_MASQUERADE.c
@@ -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) {