net: Modify sk_alloc to not reference count the netns of kernel sockets.
Now that sk_alloc knows when a kernel socket is being allocated modify
it to not reference count the network namespace of kernel sockets.
Keep track of if a socket needs reference counting by adding a flag to
struct sock called sk_net_refcnt.
Update all of the callers of sock_create_kern to stop using
sk_change_net and sk_release_kernel as those hacks are no longer
needed, to avoid reference counting a kernel socket.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index e2dd9cb..235d36a 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1430,7 +1430,7 @@
struct net *net)
{
struct socket *sock;
- int rc = sock_create_kern(&init_net, family, type, protocol, &sock);
+ int rc = sock_create_kern(net, family, type, protocol, &sock);
if (rc == 0) {
*sk = sock->sk;
@@ -1440,8 +1440,6 @@
* we do not wish this socket to see incoming packets.
*/
(*sk)->sk_prot->unhash(*sk);
-
- sk_change_net(*sk, net);
}
return rc;
}