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qapi: Allow getting flat output from 'query-named-block-nodes'

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When a management application manages node names there's no reason to
recurse into backing images in the output of query-named-block-nodes.

Add a parameter to the command which will return just the top level
structs.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Message-Id: <4470f8c779abc404dcf65e375db195cd91a80651.1579509782.git.pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[mreitz: Fixed coding style]
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Peter Krempa 2020-01-20 09:50:49 +01:00 • committed by Max Reitz
parent b0c4cf21b0
commit facda5443f
7 changed files with 29 additions and 10 deletions
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5
block.c
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@ -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;