With NFSv4.1+ on RDMA, backchannel recovery appears not to work.
xprt_setup_xxx_bc() is invoked by the client's first CREATE_SESSION
operation, and it always marks the rpc_clnt's transport as
connected.
On a subsequent CREATE_SESSION, if rpc_create() is called and
xpt_bc_xprt is populated, it might not be connected (for instance,
if a backchannel fault has occurred). Ensure that code path returns
a connected xprt also.
Reported-by: Timo Rothenpieler <timo@xxxxxxxxxxxxxxxx>
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
net/sunrpc/clnt.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 8b4de70e8ead..570480a649a3 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -535,6 +535,7 @@ struct rpc_clnt *rpc_create(struct rpc_create_args *args)
xprt = args->bc_xprt->xpt_bc_xprt;
if (xprt) {
xprt_get(xprt);
+ xprt_set_connected(xprt);
return rpc_create_xprt(args, xprt);
}
}
