Hi all. I've found two problems during my developing of backup-top filter. The first one was already discussed in context of backup-top series, so, here is patch 01 taken from it, previously it was 03 of [PATCH v5 00/11] backup-top filter driver for backup (https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg06218.html) so, here it is marked v6, and it was changed a lot: v6: rewrite using GHashTable and GQueue for efficient BFS.
02 is a new fix of bug I've found today, and 03 is a test for both fixed bugs. Vladimir Sementsov-Ogievskiy (3): block: improve should_update_child block: fix bdrv_check_perm for non-tree subgraph tests: add test-bdrv-graph-mod include/block/block_int.h | 5 + block.c | 70 +++++++++++-- tests/test-bdrv-graph-mod.c | 198 ++++++++++++++++++++++++++++++++++++ tests/Makefile.include | 2 + 4 files changed, 268 insertions(+), 7 deletions(-) create mode 100644 tests/test-bdrv-graph-mod.c -- 2.18.0
