[NET]: Add a network namespace parameter to struct sock

Sockets need to get a reference to their network namespace,
or possibly a simple hold if someone registers on the network
namespace notifier and will free the sockets when the namespace
is going to be destroyed.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h
index 47d52b2414db..abaff0597270 100644
--- a/include/net/inet_timewait_sock.h
+++ b/include/net/inet_timewait_sock.h
@@ -115,6 +115,7 @@ struct inet_timewait_sock {
 #define tw_refcnt               __tw_common.skc_refcnt
 #define tw_hash                 __tw_common.skc_hash
 #define tw_prot                 __tw_common.skc_prot
+#define tw_net                  __tw_common.skc_net
         volatile unsigned char  tw_substate;
         /* 3 bits hole, try to pack */
         unsigned char           tw_rcv_wscale;