fuse: print INTERRUPT opcode

fuse/opcode.go

@@ -721,6 +721,7 @@ func init() {
 		_OP_SETLK:        func(ptr unsafe.Pointer) interface{} { return (*LkIn)(ptr) },
 		_OP_SETLKW:       func(ptr unsafe.Pointer) interface{} { return (*LkIn)(ptr) },
 		_OP_RENAME2:      func(ptr unsafe.Pointer) interface{} { return (*RenameIn)(ptr) },
+		_OP_INTERRUPT:    func(ptr unsafe.Pointer) interface{} { return (*InterruptIn)(ptr) },
 	} {
 		operationHandlers[op].DecodeIn = f
 	}

fuse/print.go

@@ -266,6 +266,10 @@ func (f *LinkIn) string() string {
 	return fmt.Sprintf("{Oldnodeid: %d}", f.Oldnodeid)
 }
 
+func (in *InterruptIn) string() string {
+	return fmt.Sprintf("{ix %d}", in.Unique)
+}
+
 // Print pretty prints FUSE data types for kernel communication
 func Print(obj interface{}) string {
 	t, ok := obj.(interface {