RDS: Implement atomic operations

Implement a CMSG-based interface to do FADD and CSWP ops.

Alter send routines to handle atomic ops.

Add atomic counters to stats.

Add xmit_atomic() to struct rds_transport

Inline rds_ib_send_unmap_rdma into unmap_rm

Signed-off-by: Andy Grover <andy.grover@oracle.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/net/rds/ib.c b/net/rds/ib.c
index 8f2d6dd7700a..f0d29656baff 100644
--- a/net/rds/ib.c
+++ b/net/rds/ib.c
@@ -264,6 +264,7 @@ struct rds_transport rds_ib_transport = {
         .xmit                   = rds_ib_xmit,
         .xmit_cong_map          = NULL,
         .xmit_rdma              = rds_ib_xmit_rdma,
+        .xmit_atomic            = rds_ib_xmit_atomic,
         .recv                   = rds_ib_recv,
         .conn_alloc             = rds_ib_conn_alloc,
         .conn_free              = rds_ib_conn_free,