SUNRPC: Allow soft RPC calls to time out when waiting for the XPRT_LOCK

This no longer causes them to lose their place in the transmission queue.
Signed-off-by: NTrond Myklebust <trond.myklebust@hammerspace.com>

net/sunrpc/xprt.c

@@ -195,7 +195,7 @@ int xprt_reserve_xprt(struct rpc_xprt *xprt, struct rpc_task *task)
 out_sleep:
 	dprintk("RPC: %5u failed to lock transport %p\n",
 			task->tk_pid, xprt);
-	task->tk_timeout = 0;
+	task->tk_timeout = RPC_IS_SOFT(task) ? req->rq_timeout : 0;
 	task->tk_status = -EAGAIN;
 	if (req == NULL)
 		priority = RPC_PRIORITY_LOW;
@@ -274,7 +274,7 @@ int xprt_reserve_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task)
 	xprt_clear_locked(xprt);
 out_sleep:
 	dprintk("RPC: %5u failed to lock transport %p\n", task->tk_pid, xprt);
-	task->tk_timeout = 0;
+	task->tk_timeout = RPC_IS_SOFT(task) ? req->rq_timeout : 0;
 	task->tk_status = -EAGAIN;
 	if (req == NULL)
 		priority = RPC_PRIORITY_LOW;