#define __TRANS_ATTACH (1U << 10)
#define __TRANS_JOIN (1U << 11)
#define __TRANS_JOIN_NOLOCK (1U << 12)
+#define __TRANS_DUMMY (1U << 13)
#define TRANS_USERSPACE (__TRANS_USERSPACE | __TRANS_FREEZABLE)
#define TRANS_START (__TRANS_START | __TRANS_FREEZABLE)