SUNRPC: Ensure our task is notified when an rpcbind call is done

If another task is busy in rpcb_getport_async number, it is more efficient
to have it wake us up when it has finished instead of arbitrarily sleeping
for 5 seconds.

Also ensure that rpcb_wake_rpcbind_waiters() is called regardless of
whether or not rpcb_getport_done() gets called.

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

1 files changed, 3 insertions, 5 deletions

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 09631f6e30e9..76739e928d0d 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -942,11 +942,9 @@ call_bind_status(struct rpc_task *task)
         }
 
         switch (task->tk_status) {
-        case -EAGAIN:
-                dprintk("RPC: %5u rpcbind waiting for another request "
-                                "to finish\n", task->tk_pid);
-                /* avoid busy-waiting here -- could be a network outage. */
-                rpc_delay(task, 5*HZ);
+        case -ENOMEM:
+                dprintk("RPC: %5u rpcbind out of memory\n", task->tk_pid);
+                rpc_delay(task, HZ >> 2);
                 goto retry_timeout;
         case -EACCES:
                 dprintk("RPC: %5u remote rpcbind: RPC program/version "