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>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/rds/rds.h b/net/rds/rds.h
index c22bd7b49460..241a0859d16e 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -452,7 +452,7 @@ struct rds_sock {
          * 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;