#include "block/aio.h"
#include "qemu/throttle.h"
-AioContext *ctx;
-LeakyBucket bkt;
-ThrottleConfig cfg;
-ThrottleState ts;
+static AioContext *ctx;
+static LeakyBucket bkt;
+static ThrottleConfig cfg;
+static ThrottleState ts;
/* useful function */
static bool double_cmp(double x, double y)