mirror of https://github.com/xemu-project/xemu.git
a2085f8909
ImageInfo sometimes contains flat information, and sometimes it does not. Split off a BlockNodeInfo struct, which only contains information about a single node and has no link to the backing image. We do this so we can extend BlockNodeInfo to a BlockGraphInfo struct, which has links to all child nodes, not just the backing node. It would be strange to base BlockGraphInfo on ImageInfo, because then this extended struct would have two links to the backing node (one in BlockGraphInfo as one of all the child links, and one in ImageInfo). Furthermore, it is quite common to ignore the backing-image field altogether: bdrv_query_image_info() does not set it, and bdrv_image_info_dump() does not evaluate it. That signals that we should have different structs for describing a single node and one that has a link to the backing image. Still, bdrv_query_image_info() and bdrv_image_info_dump() are not changed too much in this patch. Follow-up patches will handle them. Signed-off-by: Hanna Reitz <hreitz@redhat.com> Message-Id: <20220620162704.80987-5-hreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com> |
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