Hi all! On the way of backup schemes development (and in general any complicated developments in Qemu block layer) it would be good to have a way to print out graph of block nodes with their permissions. Here is this way.
Instead of a lot of words I'll reply to this cover letter with example graph, generated in patch 04. Vladimir Sementsov-Ogievskiy (4): block: improve blk_root_get_parent_desc qapi: add x-query-block-nodes-relations scripts/qemu: add render_block_graph method for QEMUMachine not-for-commit: example of new command usage for debugging qapi/block-core.json | 71 ++++++++++++++++++++++++++++++++++++++++++++++++++ include/block/block.h | 1 + block.c | 57 ++++++++++++++++++++++++++++++++++++++++ block/block-backend.c | 2 +- blockdev.c | 5 ++++ scripts/qemu.py | 53 +++++++++++++++++++++++++++++++++++++ tests/qemu-iotests/222 | 1 + 7 files changed, 189 insertions(+), 1 deletion(-) -- 2.11.1
