[IPV6]: Simplify IPv6 control sockets creation.

Do this by replacing sock_create_kern with inet_ctl_sock_create.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 17 insertions, 30 deletions

diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 227ce3d2339d..195086114e63 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -64,6 +64,7 @@
 #include <net/addrconf.h>
 #include <net/icmp.h>
 #include <net/xfrm.h>
+#include <net/inet_common.h>
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -808,9 +809,8 @@ static int __net_init icmpv6_sk_init(struct net *net)
                 return -ENOMEM;
 
         for_each_possible_cpu(i) {
-                struct socket *sock;
-                err = sock_create_kern(PF_INET6, SOCK_RAW, IPPROTO_ICMPV6,
-                                       &sock);
+                err = inet_ctl_sock_create(&sk, PF_INET6,
+                                           SOCK_RAW, IPPROTO_ICMPV6, net);
                 if (err < 0) {
                         printk(KERN_ERR
                                "Failed to initialize the ICMP6 control socket "
@@ -819,10 +819,8 @@ static int __net_init icmpv6_sk_init(struct net *net)
                         goto fail;
                 }
 
-                net->ipv6.icmp_sk[i] = sk = sock->sk;
-                sk_change_net(sk, net);
+                net->ipv6.icmp_sk[i] = sk;
 
-                sk->sk_allocation = GFP_ATOMIC;
                 /*
                  * Split off their lock-class, because sk->sk_dst_lock
                  * gets used from softirqs, which is safe for
@@ -837,14 +835,12 @@ static int __net_init icmpv6_sk_init(struct net *net)
                  */
                 sk->sk_sndbuf =
                         (2 * ((64 * 1024) + sizeof(struct sk_buff)));
-
-                sk->sk_prot->unhash(sk);
         }
         return 0;
 
  fail:
         for (j = 0; j < i; j++)
-                sk_release_kernel(net->ipv6.icmp_sk[j]);
+                inet_ctl_sock_destroy(net->ipv6.icmp_sk[j]);
         kfree(net->ipv6.icmp_sk);
         return err;
 }
@@ -854,7 +850,7 @@ static void __net_exit icmpv6_sk_exit(struct net *net)
         int i;
 
         for_each_possible_cpu(i) {
-                sk_release_kernel(net->ipv6.icmp_sk[i]);
+                inet_ctl_sock_destroy(net->ipv6.icmp_sk[i]);
         }
         kfree(net->ipv6.icmp_sk);
 }
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index d810cff818cf..2e6a53f3cc38 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -59,6 +59,7 @@
 #include <net/ndisc.h>
 #include <net/addrconf.h>
 #include <net/ip6_route.h>
+#include <net/inet_common.h>
 
 #include <net/ip6_checksum.h>
 
@@ -2672,12 +2673,10 @@ static void igmp6_proc_exit(struct net *net)
 
 static int igmp6_net_init(struct net *net)
 {
-        struct ipv6_pinfo *np;
-        struct socket *sock;
-        struct sock *sk;
         int err;
 
-        err = sock_create_kern(PF_INET6, SOCK_RAW, IPPROTO_ICMPV6, &sock);
+        err = inet_ctl_sock_create(&net->ipv6.igmp_sk, PF_INET6,
+                                   SOCK_RAW, IPPROTO_ICMPV6, net);
         if (err < 0) {
                 printk(KERN_ERR
                        "Failed to initialize the IGMP6 control socket (err %d).\n",
@@ -2685,13 +2684,7 @@ static int igmp6_net_init(struct net *net)
                 goto out;
         }
 
-        net->ipv6.igmp_sk = sk = sock->sk;
-        sk_change_net(sk, net);
-        sk->sk_allocation = GFP_ATOMIC;
-        sk->sk_prot->unhash(sk);
-
-        np = inet6_sk(sk);
-        np->hop_limit = 1;
+        inet6_sk(net->ipv6.igmp_sk)->hop_limit = 1;
 
         err = igmp6_proc_init(net);
         if (err)
@@ -2700,13 +2693,13 @@ out:
         return err;
 
 out_sock_create:
-        sk_release_kernel(net->ipv6.igmp_sk);
+        inet_ctl_sock_destroy(net->ipv6.igmp_sk);
         goto out;
 }
 
 static void igmp6_net_exit(struct net *net)
 {
-        sk_release_kernel(net->ipv6.igmp_sk);
+        inet_ctl_sock_destroy(net->ipv6.igmp_sk);
         igmp6_proc_exit(net);
 }
 
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 510aa747a404..06d80c6dc5ce 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -84,6 +84,7 @@
 
 #include <net/flow.h>
 #include <net/ip6_checksum.h>
+#include <net/inet_common.h>
 #include <linux/proc_fs.h>
 
 #include <linux/netfilter.h>
@@ -1731,12 +1732,12 @@ static int ndisc_ifinfo_sysctl_strategy(ctl_table *ctl, int __user *name,
 
 static int ndisc_net_init(struct net *net)
 {
-        struct socket *sock;
         struct ipv6_pinfo *np;
         struct sock *sk;
         int err;
 
-        err = sock_create_kern(PF_INET6, SOCK_RAW, IPPROTO_ICMPV6, &sock);
+        err = inet_ctl_sock_create(&sk, PF_INET6,
+                                   SOCK_RAW, IPPROTO_ICMPV6, net);
         if (err < 0) {
                 ND_PRINTK0(KERN_ERR
                            "ICMPv6 NDISC: Failed to initialize the control socket (err %d).\n",
@@ -1744,22 +1745,19 @@ static int ndisc_net_init(struct net *net)
                 return err;
         }
 
-        net->ipv6.ndisc_sk = sk = sock->sk;
-        sk_change_net(sk, net);
+        net->ipv6.ndisc_sk = sk;
 
         np = inet6_sk(sk);
-        sk->sk_allocation = GFP_ATOMIC;
         np->hop_limit = 255;
         /* Do not loopback ndisc messages */
         np->mc_loop = 0;
-        sk->sk_prot->unhash(sk);
 
         return 0;
 }
 
 static void ndisc_net_exit(struct net *net)
 {
-        sk_release_kernel(net->ipv6.ndisc_sk);
+        inet_ctl_sock_destroy(net->ipv6.ndisc_sk);
 }
 
 static struct pernet_operations ndisc_net_ops = {