diff --git a/block/blk-ioc.c b/block/blk-ioc.c
index df9cfe4ca532..63fc02042408 100644
--- a/block/blk-ioc.c
+++ b/block/blk-ioc.c
@@ -247,6 +247,8 @@ static struct io_context *alloc_io_context(gfp_t gfp_flags, int node)
 	INIT_HLIST_HEAD(&ioc->icq_list);
 	INIT_WORK(&ioc->release_work, ioc_release_fn);
 #endif
+	ioc->ioprio = IOPRIO_DEFAULT;
+
 	return ioc;
 }
 
diff --git a/block/ioprio.c b/block/ioprio.c
index 2fe068fcaad5..2a34cbca18ae 100644
--- a/block/ioprio.c
+++ b/block/ioprio.c
@@ -157,9 +157,9 @@ out:
 int ioprio_best(unsigned short aprio, unsigned short bprio)
 {
 	if (!ioprio_valid(aprio))
-		aprio = IOPRIO_DEFAULT;
+		aprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, IOPRIO_BE_NORM);
 	if (!ioprio_valid(bprio))
-		bprio = IOPRIO_DEFAULT;
+		bprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, IOPRIO_BE_NORM);
 
 	return min(aprio, bprio);
 }
diff --git a/include/linux/ioprio.h b/include/linux/ioprio.h
index 3f53bc27a19b..3d088a88f832 100644
--- a/include/linux/ioprio.h
+++ b/include/linux/ioprio.h
@@ -11,7 +11,7 @@
 /*
  * Default IO priority.
  */
-#define IOPRIO_DEFAULT	IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, IOPRIO_BE_NORM)
+#define IOPRIO_DEFAULT	IOPRIO_PRIO_VALUE(IOPRIO_CLASS_NONE, 0)
 
 /*
  * Check that a priority value has a valid class.