tipc: make tipc node table aware of net namespace

Global variables associated with node table are below:
- node table list (node_htable)
- node hash table list (tipc_node_list)
- node table lock (node_list_lock)
- node number counter (tipc_num_nodes)
- node link number counter (tipc_num_links)

To make node table support namespace, above global variables must be
moved to tipc_net structure in order to keep secret for different
namespaces. As a consequence, these variables are allocated and
initialized when namespace is created, and deallocated when namespace
is destroyed. After the change, functions associated with these
variables have to utilize a namespace pointer to access them. So
adding namespace pointer as a parameter of these functions is the
major change made in the commit.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Tested-by: Tero Aho <Tero.Aho@coriant.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/tipc/addr.h b/net/tipc/addr.h
index 60b00ab93d74..3e1f18e29f1e 100644
--- a/net/tipc/addr.h
+++ b/net/tipc/addr.h
@@ -40,6 +40,8 @@
 #define TIPC_ZONE_MASK		0xff000000u
 #define TIPC_CLUSTER_MASK	0xfffff000u
 
+extern u32 tipc_own_addr __read_mostly;
+
 static inline u32 tipc_zone_mask(u32 addr)
 {
 	return addr & TIPC_ZONE_MASK;