#define IOPRIO_BITS 16
#define IOPRIO_CLASS_SHIFT 13
+#define IOPRIO_MIN_PRIO 0 /* highest priority */
+#define IOPRIO_MAX_PRIO 7 /* lowest priority */
+
+#define IOPRIO_MIN_PRIO_CLASS 0
+#define IOPRIO_MAX_PRIO_CLASS 3
+
static inline int ioprio_set(int which, int who, int ioprio_class, int ioprio)
{
/*