[PATCH v3 00/11] blockdev-replace

Hi all! Finally, that's a proposal for new interface for filter insertion, which provides generic way for inserting between different block graph nodes, like BDS nodes, block exports and block devices. v3: - add transaction support - add test, that shows transactional filter insertion in different cases - drop RFC mark. I think it's now close to be a good solution. And anyway, no comments on "RFC v2" version :) Still, I want to keep x- prefix for now, just because there were too many different ideas on this topic. Vladimir Sementsov-Ogievskiy (11): block-backend: blk_root(): drop const specifier on return type block/export: add blk_by_export_id() block: make bdrv_find_child() function public block: bdrv_replace_child_bs(): move to external transaction qapi: add x-blockdev-replace command qapi: add x-blockdev-replace transaction action block: bdrv_get_xdbg_block_graph(): report export ids iotests.py: qemu_img_create: use imgfmt by default iotests.py: introduce VM.assert_edges_list() method iotests.py: add VM.qmp_check() helper iotests: add filter-insertion qapi/block-core.json | 62 +++++ qapi/transaction.json | 14 +- include/block/block.h | 2 +- include/block/block_int.h | 1 + include/block/export.h | 1 + include/sysemu/block-backend.h | 3 +- block.c | 59 ++-- block/block-backend.c | 10 +- block/export/export.c | 31 +++ blockdev.c | 113 +++++++- stubs/blk-by-qdev-id.c | 9 + stubs/blk-exp-find-by-blk.c | 9 + stubs/meson.build | 2 + tests/qemu-iotests/iotests.py | 23 ++ tests/qemu-iotests/tests/filter-insertion | 253 ++++++++++++++++++ tests/qemu-iotests/tests/filter-insertion.out | 5 + 16 files changed, 563 insertions(+), 34 deletions(-) create mode 100644 stubs/blk-by-qdev-id.c create mode 100644 stubs/blk-exp-find-by-blk.c create mode 100755 tests/qemu-iotests/tests/filter-insertion create mode 100644 tests/qemu-iotests/tests/filter-insertion.out -- 2.31.1