RDS: Stop supporting old cong map sending method
We now ask the transport to give us a rm for the congestion
map, and then we handle it normally. Previously, the
transport defined a function that we would call to send
a congestion map.
Convert TCP and loop transports to new cong map method.
Signed-off-by: Andy Grover <andy.grover@oracle.com>
diff --git a/net/rds/send.c b/net/rds/send.c
index d1f364e..8a0647a 100644
--- a/net/rds/send.c
+++ b/net/rds/send.c
@@ -147,41 +147,16 @@
/*
* If between sending messages, we can send a pending congestion
* map update.
- *
- * Transports either define a special xmit_cong_map function,
- * or we allocate a cong_map message and treat it just like any
- * other send.
*/
if (!rm && test_and_clear_bit(0, &conn->c_map_queued)) {
- if (conn->c_trans->xmit_cong_map) {
- unsigned long map_offset = 0;
- unsigned long map_bytes = sizeof(struct rds_header) +
- RDS_CONG_MAP_BYTES;
-
- while (map_bytes) {
- ret = conn->c_trans->xmit_cong_map(conn, conn->c_lcong,
- map_offset);
- if (ret <= 0) {
- /* too far down the rabbithole! */
- mutex_unlock(&conn->c_send_lock);
- rds_conn_error(conn, "Cong map xmit failed\n");
- goto out;
- }
-
- map_offset += ret;
- map_bytes -= ret;
- }
- } else {
- /* send cong update like a normal rm */
- rm = rds_cong_update_alloc(conn);
- if (IS_ERR(rm)) {
- ret = PTR_ERR(rm);
- break;
- }
- rm->data.op_active = 1;
-
- conn->c_xmit_rm = rm;
+ rm = rds_cong_update_alloc(conn);
+ if (IS_ERR(rm)) {
+ ret = PTR_ERR(rm);
+ break;
}
+ rm->data.op_active = 1;
+
+ conn->c_xmit_rm = rm;
}
/*