SUNRPC: Make create_client() take a reference to the rpciod workqueue
Ensures that an rpc_client always has the possibility to send asynchronous
RPC calls.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 78bbb35..fe838e9 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -111,6 +111,9 @@
dprintk("RPC: creating %s client for %s (xprt %p)\n",
program->name, servname, xprt);
+ err = rpciod_up();
+ if (err)
+ goto out_no_rpciod;
err = -EINVAL;
if (!xprt)
goto out_no_xprt;
@@ -191,6 +194,8 @@
out_err:
xprt_put(xprt);
out_no_xprt:
+ rpciod_down();
+out_no_rpciod:
return ERR_PTR(err);
}
@@ -287,6 +292,7 @@
xprt_get(clnt->cl_xprt);
kref_get(&clnt->cl_kref);
rpc_register_client(new);
+ rpciod_up();
return new;
out_no_path:
rpc_free_iostats(new->cl_metrics);
@@ -344,6 +350,7 @@
rpc_free_iostats(clnt->cl_metrics);
clnt->cl_metrics = NULL;
xprt_put(clnt->cl_xprt);
+ rpciod_down();
kfree(clnt);
}