SUNRPC: Don't wake queued RPC calls multiple times in xprt_transmit

Rather than waking up the entire queue of RPC messages a second time,
just wake up the task that was put to sleep.

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

diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 649a40c..3a3b344 100644 (file)
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -1079,13 +1079,10 @@ void xprt_transmit(struct rpc_task *task)
                spin_lock(&xprt->recv_lock);
                if (test_bit(RPC_TASK_NEED_RECV, &task->tk_runstate)) {
                        rpc_sleep_on(&xprt->pending, task, xprt_timer);
-                       /*
-                        * Send an extra queue wakeup call if the
-                        * connection was dropped in case the call to
-                        * rpc_sleep_on() raced.
-                        */
+                       /* Wake up immediately if the connection was dropped */
                        if (!xprt_connected(xprt))
-                               xprt_wake_pending_tasks(xprt, -ENOTCONN);
+                               rpc_wake_up_queued_task_set_status(&xprt->pending,
+                                               task, -ENOTCONN);
                }
                spin_unlock(&xprt->recv_lock);
        }