add a bunch of methods to the client end

vendor/github.com/hanwen/go-fuse/fuse/poll_linux.go

@@ -0,0 +1,25 @@
+package fuse
+
+import (
+	"path/filepath"
+	"syscall"
+
+	"golang.org/x/sys/unix"
+)
+
+func pollHack(mountPoint string) error {
+	fd, err := syscall.Creat(filepath.Join(mountPoint, pollHackName), syscall.O_CREAT)
+	if err != nil {
+		return err
+	}
+	pollData := []unix.PollFd{{
+		Fd:     int32(fd),
+		Events: unix.POLLIN | unix.POLLPRI | unix.POLLOUT,
+	}}
+
+	// Trigger _OP_POLL, so we can say ENOSYS. We don't care about
+	// the return value.
+	unix.Poll(pollData, 0)
+	syscall.Close(fd)
+	return nil
+}