Test: use submit_and_wait()

blockstore_impl.cpp

@@ -196,11 +196,6 @@ void blockstore_impl_t::loop()
         {
             flusher->loop();
         }
-        int ret = ringloop->submit();
-        if (ret < 0)
-        {
-            throw std::runtime_error(std::string("io_uring_submit: ") + strerror(-ret));
-        }
         if ((initial_ring_space - ringloop->space_left()) > 0)
         {
             live = true;

osd.cpp

@@ -175,7 +175,6 @@ void osd_t::loop()
     handle_peers();
     read_requests();
     send_replies();
-    ringloop->submit();
 }
 
 void osd_t::handle_epoll_events()

ringloop.h

@@ -146,8 +146,7 @@ public:
     }
     inline int wait()
     {
-        struct io_uring_cqe *cqe;
-        return io_uring_wait_cqe(&ring, &cqe);
+        return io_uring_submit_and_wait(&ring, 1);
     }
     inline unsigned space_left()
     {