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-rw-r--r--block.c5
-rw-r--r--block/qapi.c11
-rw-r--r--blockdev.c8
-rw-r--r--include/block/block.h2
-rw-r--r--include/block/qapi.h4
-rw-r--r--monitor/hmp-cmds.c2
-rw-r--r--qapi/block-core.json7
7 files changed, 29 insertions, 10 deletions
diff --git a/block.c b/block.c
index 946e3c896e..08372ced26 100644
--- a/block.c
+++ b/block.c
@@ -4807,14 +4807,15 @@ BlockDriverState *bdrv_find_node(const char *node_name)
}
/* Put this QMP function here so it can access the static graph_bdrv_states. */
-BlockDeviceInfoList *bdrv_named_nodes_list(Error **errp)
+BlockDeviceInfoList *bdrv_named_nodes_list(bool flat,
+ Error **errp)
{
BlockDeviceInfoList *list, *entry;
BlockDriverState *bs;
list = NULL;
QTAILQ_FOREACH(bs, &graph_bdrv_states, node_list) {
- BlockDeviceInfo *info = bdrv_block_device_info(NULL, bs, errp);
+ BlockDeviceInfo *info = bdrv_block_device_info(NULL, bs, flat, errp);
if (!info) {
qapi_free_BlockDeviceInfoList(list);
return NULL;
diff --git a/block/qapi.c b/block/qapi.c
index 9a5d0c9b27..3f09477cc5 100644
--- a/block/qapi.c
+++ b/block/qapi.c
@@ -42,7 +42,9 @@
#include "qemu/cutils.h"
BlockDeviceInfo *bdrv_block_device_info(BlockBackend *blk,
- BlockDriverState *bs, Error **errp)
+ BlockDriverState *bs,
+ bool flat,
+ Error **errp)
{
ImageInfo **p_image_info;
BlockDriverState *bs0;
@@ -156,6 +158,11 @@ BlockDeviceInfo *bdrv_block_device_info(BlockBackend *blk,
return NULL;
}
+ /* stop gathering data for flat output */
+ if (flat) {
+ break;
+ }
+
if (bs0->drv && bs0->backing) {
info->backing_file_depth++;
bs0 = bs0->backing->bs;
@@ -389,7 +396,7 @@ static void bdrv_query_info(BlockBackend *blk, BlockInfo **p_info,
if (bs && bs->drv) {
info->has_inserted = true;
- info->inserted = bdrv_block_device_info(blk, bs, errp);
+ info->inserted = bdrv_block_device_info(blk, bs, false, errp);
if (info->inserted == NULL) {
goto err;
}
diff --git a/blockdev.c b/blockdev.c
index 45de0ba37e..011dcfec27 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -3734,9 +3734,13 @@ void qmp_drive_backup(DriveBackup *backup, Error **errp)
blockdev_do_action(&action, errp);
}
-BlockDeviceInfoList *qmp_query_named_block_nodes(Error **errp)
+BlockDeviceInfoList *qmp_query_named_block_nodes(bool has_flat,
+ bool flat,
+ Error **errp)
{
- return bdrv_named_nodes_list(errp);
+ bool return_flat = has_flat && flat;
+
+ return bdrv_named_nodes_list(return_flat, errp);
}
XDbgBlockGraph *qmp_x_debug_query_block_graph(Error **errp)
diff --git a/include/block/block.h b/include/block/block.h
index 314ce63ed9..cd6b5b95aa 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -454,7 +454,7 @@ void bdrv_lock_medium(BlockDriverState *bs, bool locked);
void bdrv_eject(BlockDriverState *bs, bool eject_flag);
const char *bdrv_get_format_name(BlockDriverState *bs);
BlockDriverState *bdrv_find_node(const char *node_name);
-BlockDeviceInfoList *bdrv_named_nodes_list(Error **errp);
+BlockDeviceInfoList *bdrv_named_nodes_list(bool flat, Error **errp);
XDbgBlockGraph *bdrv_get_xdbg_block_graph(Error **errp);
BlockDriverState *bdrv_lookup_bs(const char *device,
const char *node_name,
diff --git a/include/block/qapi.h b/include/block/qapi.h
index cd9410dee3..22c7807c89 100644
--- a/include/block/qapi.h
+++ b/include/block/qapi.h
@@ -29,7 +29,9 @@
#include "block/snapshot.h"
BlockDeviceInfo *bdrv_block_device_info(BlockBackend *blk,
- BlockDriverState *bs, Error **errp);
+ BlockDriverState *bs,
+ bool flat,
+ Error **errp);
int bdrv_query_snapshot_info_list(BlockDriverState *bs,
SnapshotInfoList **p_list,
Error **errp);
diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
index b237613e0d..53bc3f76c4 100644
--- a/monitor/hmp-cmds.c
+++ b/monitor/hmp-cmds.c
@@ -620,7 +620,7 @@ void hmp_info_block(Monitor *mon, const QDict *qdict)
}
/* Print node information */
- blockdev_list = qmp_query_named_block_nodes(NULL);
+ blockdev_list = qmp_query_named_block_nodes(false, false, NULL);
for (blockdev = blockdev_list; blockdev; blockdev = blockdev->next) {
assert(blockdev->value->has_node_name);
if (device && strcmp(device, blockdev->value->node_name)) {
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 37d7ea7295..85e27bb61f 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -1758,6 +1758,9 @@
#
# Get the named block driver list
#
+# @flat: Omit the nested data about backing image ("backing-image" key) if true.
+# Default is false (Since 5.0)
+#
# Returns: the list of BlockDeviceInfo
#
# Since: 2.0
@@ -1811,7 +1814,9 @@
# } } ] }
#
##
-{ 'command': 'query-named-block-nodes', 'returns': [ 'BlockDeviceInfo' ] }
+{ 'command': 'query-named-block-nodes',
+ 'returns': [ 'BlockDeviceInfo' ],
+ 'data': { '*flat': 'bool' } }
##
# @XDbgBlockGraphNodeType: