SUNRPC: Add the helper function 'rpc_call_null()'

Does a NULL RPC call and returns a pointer to the resulting rpc_task. The
call may be either synchronous or asynchronous.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index a0e51e193284..097984b03857 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -130,6 +130,8 @@ int		rpc_call_async(struct rpc_clnt *clnt, struct rpc_message *msg,
                                void *calldata);
 int             rpc_call_sync(struct rpc_clnt *clnt, struct rpc_message *msg,
                               int flags);
+struct rpc_task *rpc_call_null(struct rpc_clnt *clnt, struct rpc_cred *cred,
+                               int flags);
 void            rpc_restart_call(struct rpc_task *);
 void            rpc_clnt_sigmask(struct rpc_clnt *clnt, sigset_t *oldset);
 void            rpc_clnt_sigunmask(struct rpc_clnt *clnt, sigset_t *oldset);