SUNRPC: Allow caller to specify the transport to use

This is needed in order to allow the NFSv4.1 backchannel and
BIND_CONN_TO_SESSION function to work.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index 0b248e9..05a1809 100644 (file)
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -103,6 +103,7 @@ struct rpc_call_ops {
 struct rpc_task_setup {
        struct rpc_task *task;
        struct rpc_clnt *rpc_client;
+       struct rpc_xprt *rpc_xprt;
        const struct rpc_message *rpc_message;
        const struct rpc_call_ops *callback_ops;
        void *callback_data;

diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index 73ad57a..fcfd48d 100644 (file)
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -909,6 +909,8 @@ static void rpc_init_task(struct rpc_task *task, const struct rpc_task_setup *ta
        /* Initialize workqueue for async tasks */
        task->tk_workqueue = task_setup_data->workqueue;
 
+       task->tk_xprt = xprt_get(task_setup_data->rpc_xprt);
+
        if (task->tk_ops->rpc_call_prepare != NULL)
                task->tk_action = rpc_prepare_task;