rds: Use RCU for the bind lookup searches
The RDS bind lookups are somewhat expensive in terms of CPU
time and locking overhead. This commit changes them into a
faster RCU based hash tree instead of the rbtrees they were using
before.
On large NUMA systems it is a significant improvement.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/net/rds/rds.h b/net/rds/rds.h
index c22bd7b..241a085 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -452,7 +452,7 @@
* bound_addr used for both incoming and outgoing, no INADDR_ANY
* support.
*/
- struct rb_node rs_bound_node;
+ struct hlist_node rs_bound_node;
__be32 rs_bound_addr;
__be32 rs_conn_addr;
__be16 rs_bound_port;