[NETNS]: Make bind buckets live in net namespaces.

This tags the inet_bind_bucket struct with net pointer,
initializes it during creation and makes a filtering
during lookup.

A better hashfn, that takes the net into account is to
be done in the future, but currently all bind buckets
with similar port will be in one hash chain.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index a34a8f25fc57..55532b9bb59a 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -74,6 +74,7 @@ struct inet_ehash_bucket {
  * ports are created in O(1) time?  I thought so. ;-)   -DaveM
  */
 struct inet_bind_bucket {
+        struct net              *ib_net;
         unsigned short          port;
         signed short            fastreuse;
         struct hlist_node       node;
@@ -194,6 +195,7 @@ static inline void inet_ehash_locks_free(struct inet_hashinfo *hashinfo)
 
 extern struct inet_bind_bucket *
                     inet_bind_bucket_create(struct kmem_cache *cachep,
+                                            struct net *net,
                                             struct inet_bind_hashbucket *head,
                                             const unsigned short snum);
 extern void inet_bind_bucket_destroy(struct kmem_cache *cachep,