diff --git a/block.c b/block.c
index 71061fbbfc..ca7e7a0b45 100644
--- a/block.c
+++ b/block.c
@@ -2917,7 +2917,7 @@ BlockDeviceInfoList *bdrv_named_nodes_list(Error **errp)
 
     list = NULL;
     QTAILQ_FOREACH(bs, &graph_bdrv_states, node_list) {
-        BlockDeviceInfo *info = bdrv_block_device_info(bs, errp);
+        BlockDeviceInfo *info = bdrv_block_device_info(NULL, bs, errp);
         if (!info) {
             qapi_free_BlockDeviceInfoList(list);
             return NULL;
diff --git a/block/qapi.c b/block/qapi.c
index 351676175b..c5f6ba643c 100644
--- a/block/qapi.c
+++ b/block/qapi.c
@@ -34,7 +34,8 @@
 #include "sysemu/block-backend.h"
 #include "qemu/cutils.h"
 
-BlockDeviceInfo *bdrv_block_device_info(BlockDriverState *bs, Error **errp)
+BlockDeviceInfo *bdrv_block_device_info(BlockBackend *blk,
+                                        BlockDriverState *bs, Error **errp)
 {
     ImageInfo **p_image_info;
     BlockDriverState *bs0;
@@ -48,7 +49,7 @@ BlockDeviceInfo *bdrv_block_device_info(BlockDriverState *bs, Error **errp)
 
     info->cache = g_new(BlockdevCacheInfo, 1);
     *info->cache = (BlockdevCacheInfo) {
-        .writeback      = bdrv_enable_write_cache(bs),
+        .writeback      = blk ? blk_enable_write_cache(blk) : true,
         .direct         = !!(bs->open_flags & BDRV_O_NOCACHE),
         .no_flush       = !!(bs->open_flags & BDRV_O_NO_FLUSH),
     };
@@ -343,7 +344,7 @@ static void bdrv_query_info(BlockBackend *blk, BlockInfo **p_info,
 
     if (bs && bs->drv) {
         info->has_inserted = true;
-        info->inserted = bdrv_block_device_info(bs, errp);
+        info->inserted = bdrv_block_device_info(blk, bs, errp);
         if (info->inserted == NULL) {
             goto err;
         }
diff --git a/include/block/qapi.h b/include/block/qapi.h
index 327549d917..82ba4b63a0 100644
--- a/include/block/qapi.h
+++ b/include/block/qapi.h
@@ -29,7 +29,8 @@
 #include "block/block.h"
 #include "block/snapshot.h"
 
-BlockDeviceInfo *bdrv_block_device_info(BlockDriverState *bs, Error **errp);
+BlockDeviceInfo *bdrv_block_device_info(BlockBackend *blk,
+                                        BlockDriverState *bs, Error **errp);
 int bdrv_query_snapshot_info_list(BlockDriverState *bs,
                                   SnapshotInfoList **p_list,
                                   Error **errp);
diff --git a/tests/qemu-iotests/142 b/tests/qemu-iotests/142
index 517fb306c8..8bbbfde3a1 100755
--- a/tests/qemu-iotests/142
+++ b/tests/qemu-iotests/142
@@ -134,7 +134,8 @@ echo
 
 # First check the inherited cache mode after opening the image.
 
-hmp_cmds="info block image
+hmp_cmds="info block none0
+info block image
 info block file
 info block backing
 info block backing-file"
@@ -164,6 +165,7 @@ echo
 # new cache mode is specified in the flags, not as an option.
 
 hmp_cmds='qemu-io none0 "reopen -c none"
+info block none0
 info block image
 info block file
 info block backing
@@ -179,6 +181,7 @@ echo
 # new cache mode is specified as an option, not in the flags.
 
 hmp_cmds='qemu-io none0 "reopen -o cache.direct=on"
+info block none0
 info block image
 info block file
 info block backing
@@ -214,6 +217,7 @@ echo
 # options from its parent node.
 
 hmp_cmds="qemu-io none0 \"reopen -o cache.writeback=off,cache.direct=on,cache.no-flush=on\"
+info block none0
 info block image
 info block blkdebug
 info block file"
@@ -321,6 +325,7 @@ echo "--- Basic reopen ---"
 echo
 
 hmp_cmds='qemu-io none0 "reopen -o backing.cache.direct=on"
+info block none0
 info block image
 info block file
 info block backing
diff --git a/tests/qemu-iotests/142.out b/tests/qemu-iotests/142.out
index 32dc802a18..c9224909b5 100644
--- a/tests/qemu-iotests/142.out
+++ b/tests/qemu-iotests/142.out
@@ -39,14 +39,17 @@ cache.direct=on on none0
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
+    Cache mode:       writeback, direct
 
 cache.direct=on on file
+    Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback, direct
     Cache mode:       writeback
     Cache mode:       writeback
 
 cache.direct=on on backing
+    Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback, direct
@@ -56,6 +59,7 @@ cache.direct=on on backing-file
     Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback
+    Cache mode:       writeback
     Cache mode:       writeback, direct
 
 
@@ -64,6 +68,7 @@ cache.writeback=off on none0
     Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback
+    Cache mode:       writeback
 
 cache.writeback=off on file
 QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,file.cache.writeback=off: Can't set writethrough mode except for the root
@@ -80,14 +85,17 @@ cache.no-flush=on on none0
     Cache mode:       writeback, ignore flushes
     Cache mode:       writeback, ignore flushes
     Cache mode:       writeback, ignore flushes
+    Cache mode:       writeback, ignore flushes
 
 cache.no-flush=on on file
+    Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback, ignore flushes
     Cache mode:       writeback
     Cache mode:       writeback
 
 cache.no-flush=on on backing
+    Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback, ignore flushes
@@ -97,6 +105,7 @@ cache.no-flush=on on backing-file
     Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback
+    Cache mode:       writeback
     Cache mode:       writeback, ignore flushes
 
 --- Cache modes after reopen (live snapshot) ---
@@ -182,24 +191,28 @@ cache.direct=on on none0
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
+    Cache mode:       writeback, direct
 
 cache.direct=on on file
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
+    Cache mode:       writeback, direct
 
 cache.direct=on on backing
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
+    Cache mode:       writeback, direct
 
 cache.direct=on on backing-file
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
+    Cache mode:       writeback, direct
 
 
 cache.writeback=off on none0
@@ -207,6 +220,7 @@ cache.writeback=off on none0
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
+    Cache mode:       writeback, direct
 
 cache.writeback=off on file
 QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,file.cache.writeback=off: Can't set writethrough mode except for the root
@@ -223,14 +237,17 @@ cache.no-flush=on on none0
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
+    Cache mode:       writeback, direct
 
 cache.no-flush=on on file
+    Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct, ignore flushes
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
 
 cache.no-flush=on on backing
+    Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct, ignore flushes
@@ -240,6 +257,7 @@ cache.no-flush=on on backing-file
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
+    Cache mode:       writeback, direct
     Cache mode:       writeback, direct, ignore flushes
 
 --- Change cache modes with reopen (qemu-io command, options) ---
@@ -249,24 +267,28 @@ cache.direct=on on none0
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
+    Cache mode:       writeback, direct
 
 cache.direct=on on file
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
+    Cache mode:       writeback, direct
 
 cache.direct=on on backing
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
+    Cache mode:       writeback, direct
 
 cache.direct=on on backing-file
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
+    Cache mode:       writeback, direct
 
 
 cache.writeback=off on none0
@@ -274,6 +296,7 @@ cache.writeback=off on none0
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
+    Cache mode:       writeback, direct
 
 cache.writeback=off on file
 QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,file.cache.writeback=off: Can't set writethrough mode except for the root
@@ -290,14 +313,17 @@ cache.no-flush=on on none0
     Cache mode:       writeback, direct, ignore flushes
     Cache mode:       writeback, direct, ignore flushes
     Cache mode:       writeback, direct, ignore flushes
+    Cache mode:       writeback, direct, ignore flushes
 
 cache.no-flush=on on file
+    Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct, ignore flushes
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
 
 cache.no-flush=on on backing
+    Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct, ignore flushes
@@ -307,6 +333,7 @@ cache.no-flush=on on backing-file
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
+    Cache mode:       writeback, direct
     Cache mode:       writeback, direct, ignore flushes
 
 --- Change cache modes after snapshot ---
@@ -389,6 +416,7 @@ cache.no-flush=on on backing-file
 
     Cache mode:       writethrough, direct, ignore flushes
     Cache mode:       writeback, direct, ignore flushes
+    Cache mode:       writeback, direct, ignore flushes
     Cache mode:       writeback, ignore flushes
 
 === Check that referenced BDSes don't inherit ===
@@ -422,28 +450,28 @@ cache.direct=on on backing-file
 
 
 cache.writeback=off on blk
-    Cache mode:       writethrough
+    Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback
 
 cache.writeback=off on file
     Cache mode:       writeback
-    Cache mode:       writethrough
+    Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback
 
 cache.writeback=off on backing
     Cache mode:       writeback
     Cache mode:       writeback
-    Cache mode:       writethrough
+    Cache mode:       writeback
     Cache mode:       writeback
 
 cache.writeback=off on backing-file
     Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback
-    Cache mode:       writethrough
+    Cache mode:       writeback
 
 
 cache.no-flush=on on blk
@@ -511,7 +539,7 @@ cache.writeback=off on blk
 cache.writeback=off on file
     Cache mode:       writeback
     Cache mode:       writeback
-    Cache mode:       writethrough
+    Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback
 
@@ -519,7 +547,7 @@ cache.writeback=off on backing
     Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback
-    Cache mode:       writethrough
+    Cache mode:       writeback
     Cache mode:       writeback
 
 cache.writeback=off on backing-file
@@ -527,7 +555,7 @@ cache.writeback=off on backing-file
     Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback
-    Cache mode:       writethrough
+    Cache mode:       writeback
 
 
 cache.no-flush=on on blk
@@ -593,21 +621,21 @@ cache.writeback=off on blk
 
 cache.writeback=off on file
     Cache mode:       writeback, direct
-    Cache mode:       writethrough
+    Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback
 
 cache.writeback=off on backing
     Cache mode:       writeback, direct
     Cache mode:       writeback
-    Cache mode:       writethrough
+    Cache mode:       writeback
     Cache mode:       writeback
 
 cache.writeback=off on backing-file
     Cache mode:       writeback, direct
     Cache mode:       writeback
     Cache mode:       writeback
-    Cache mode:       writethrough
+    Cache mode:       writeback
 
 
 cache.no-flush=on on blk
@@ -644,20 +672,24 @@ cache.direct=on on none0
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
+    Cache mode:       writeback, direct
 
 cache.direct=on on file
+    Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
 
 cache.direct=on on backing
+    Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
 
 cache.direct=on on backing-file
+    Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback, direct
@@ -667,6 +699,7 @@ cache.direct=on on backing-file
 cache.writeback=off on none0
     Cache mode:       writethrough
     Cache mode:       writeback
+    Cache mode:       writeback
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
 
@@ -681,24 +714,28 @@ QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t
 
 
 cache.no-flush=on on none0
+    Cache mode:       writeback, ignore flushes
     Cache mode:       writeback, ignore flushes
     Cache mode:       writeback, ignore flushes
     Cache mode:       writeback, direct, ignore flushes
     Cache mode:       writeback, direct, ignore flushes
 
 cache.no-flush=on on file
+    Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback, ignore flushes
     Cache mode:       writeback, direct
     Cache mode:       writeback, direct
 
 cache.no-flush=on on backing
+    Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback, direct, ignore flushes
     Cache mode:       writeback, direct, ignore flushes
 
 cache.no-flush=on on backing-file
+    Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback
     Cache mode:       writeback, direct