rxrpc: rxrpc_workqueue isn't used during memory reclaim

rxrpc_workqueue isn't depended upon while reclaiming memory.  Convert
to alloc_workqueue() without WQ_MEM_RECLAIM.
Signed-off-by: NTejun Heo <tj@kernel.org>
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Cc: linux-afs@lists.infradead.org
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

net/rxrpc/af_rxrpc.c

@@ -808,7 +808,7 @@ static int __init af_rxrpc_init(void)
 		goto error_call_jar;
 	}
 
-	rxrpc_workqueue = create_workqueue("krxrpcd");
+	rxrpc_workqueue = alloc_workqueue("krxrpcd", 0, 1);
 	if (!rxrpc_workqueue) {
 		printk(KERN_NOTICE "RxRPC: Failed to allocate work queue\n");
 		goto error_work_queue;