tipc: Hide internal details of node table implementation

Relocates information about the size of TIPC's node table index and
its associated hash function, since only node subsystem routines need
to have access to this information.

Note that these changes are essentially cosmetic in nature, and have
no impact on the actual operation of TIPC.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

diff --git a/net/tipc/node.c b/net/tipc/node.c
index 153425997cced306df3a7a77699b7fa97c87a4fb..1790f503f57b693388983c96087af45e69fc7d55 100644 (file)
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -39,6 +39,8 @@
 #include "node.h"
 #include "name_distr.h"
 
+#define NODE_HTABLE_SIZE 512
+
 static void node_lost_contact(struct tipc_node *n_ptr);
 static void node_established_contact(struct tipc_node *n_ptr);
 
@@ -50,6 +52,17 @@ static u32 tipc_num_nodes;
 
 static atomic_t tipc_num_links = ATOMIC_INIT(0);
 
+/*
+ * A trivial power-of-two bitmask technique is used for speed, since this
+ * operation is done for every incoming TIPC packet. The number of hash table
+ * entries has been chosen so that no hash chain exceeds 8 nodes and will
+ * usually be much smaller (typically only a single node).
+ */
+static inline unsigned int tipc_hashfn(u32 addr)
+{
+       return addr & (NODE_HTABLE_SIZE - 1);
+}
+
 /*
  * tipc_node_find - locate specified node object, if it exists
  */

diff --git a/net/tipc/node.h b/net/tipc/node.h
index 7bf526af1dfb6914e4ecccb8454e673d2208d5cf..72561c971d6735f622fe65428b013e6e0d683f20 100644 (file)
--- a/net/tipc/node.h
+++ b/net/tipc/node.h
@@ -107,20 +107,8 @@ struct tipc_node {
        } bclink;
 };
 
-#define NODE_HTABLE_SIZE 512
 extern struct list_head tipc_node_list;
 
-/*
- * A trivial power-of-two bitmask technique is used for speed, since this
- * operation is done for every incoming TIPC packet. The number of hash table
- * entries has been chosen so that no hash chain exceeds 8 nodes and will
- * usually be much smaller (typically only a single node).
- */
-static inline unsigned int tipc_hashfn(u32 addr)
-{
-       return addr & (NODE_HTABLE_SIZE - 1);
-}
-
 struct tipc_node *tipc_node_find(u32 addr);
 struct tipc_node *tipc_node_create(u32 addr);
 void tipc_node_delete(struct tipc_node *n_ptr);