Method vioctl

fs/exportfs.cpp:317–324

            }
        };
        virtual int vioctl(int request, va_list args) override
        {
            AsyncWaiter<int> w;
            auto done = w.done();
            uint64_t timeout = -1;
            PERFORM(OPID_VIOCTL, m_file->vioctl(request, args));
            return w.wait();
        }
    };
    class ExportAsAsyncDIR : public ExportBase, public AsyncDIR
    {