xprtrdma: Remove reply tasklet

Clean up: The reply tasklet is no longer used.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Tested-By: Devesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

net/sunrpc/xprtrdma/verbs.c

@@ -68,38 +68,6 @@
  * internal functions
  */
 
-/*
- * handle replies in tasklet context, using a single, global list
- * rdma tasklet function -- just turn around and call the func
- * for all replies on the list
- */
-
-static DEFINE_SPINLOCK(rpcrdma_tk_lock_g);
-static LIST_HEAD(rpcrdma_tasklets_g);
-
-static void
-rpcrdma_run_tasklet(unsigned long data)
-{
-	struct rpcrdma_rep *rep;
-	unsigned long flags;
-
-	data = data;
-	spin_lock_irqsave(&rpcrdma_tk_lock_g, flags);
-	while (!list_empty(&rpcrdma_tasklets_g)) {
-		rep = list_entry(rpcrdma_tasklets_g.next,
-				 struct rpcrdma_rep, rr_list);
-		list_del(&rep->rr_list);
-		spin_unlock_irqrestore(&rpcrdma_tk_lock_g, flags);
-
-		rpcrdma_reply_handler(rep);
-
-		spin_lock_irqsave(&rpcrdma_tk_lock_g, flags);
-	}
-	spin_unlock_irqrestore(&rpcrdma_tk_lock_g, flags);
-}
-
-static DECLARE_TASKLET(rpcrdma_tasklet_g, rpcrdma_run_tasklet, 0UL);
-
 static struct workqueue_struct *rpcrdma_receive_wq;
 
 int
@@ -129,17 +97,6 @@ rpcrdma_destroy_wq(void)
 	}
 }
 
-static void
-rpcrdma_schedule_tasklet(struct list_head *sched_list)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&rpcrdma_tk_lock_g, flags);
-	list_splice_tail(sched_list, &rpcrdma_tasklets_g);
-	spin_unlock_irqrestore(&rpcrdma_tk_lock_g, flags);
-	tasklet_schedule(&rpcrdma_tasklet_g);
-}
-
 static void
 rpcrdma_qp_async_error_upcall(struct ib_event *event, void *context)
 {