SUNRPC: Introduce transport switch callout for pluggable rpcbind
Introduce a clean transport switch API for plugging in different types of
rpcbind mechanisms. For instance, rpcbind can cleanly replace the
existing portmapper client, or a transport can choose to implement RPC
binding any way it likes.
Test plan:
Destructive testing (unplugging the network temporarily). Connectathon
with UDP and TCP. NFSv2/3 and NFSv4 mounting should be carefully checked.
Probably need to rig a server where certain services aren't running, or
that returns an error for some typical operation.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/net/sunrpc/pmap_clnt.c b/net/sunrpc/pmap_clnt.c
index 0efcbf1..f7b279a 100644
--- a/net/sunrpc/pmap_clnt.c
+++ b/net/sunrpc/pmap_clnt.c
@@ -81,13 +81,13 @@
/**
* rpc_getport - obtain the port for a given RPC service on a given host
* @task: task that is waiting for portmapper request
- * @clnt: controlling rpc_clnt
*
* This one can be called for an ongoing RPC request, and can be used in
* an async (rpciod) context.
*/
-void rpc_getport(struct rpc_task *task, struct rpc_clnt *clnt)
+void rpc_getport(struct rpc_task *task)
{
+ struct rpc_clnt *clnt = task->tk_client;
struct rpc_xprt *xprt = task->tk_xprt;
struct sockaddr_in *sap = &xprt->addr;
struct portmap_args *map;