Previously live commit of active block device is not supported, this series implements it and updates corresponding qemu-iotests cases.
This series is based on BlockJobType enum QAPI series. v7: Fix "Since 1.8" to "Since 2.0". Rebase patch 05 to master. v6: Address comments from Stefan: [04/06] commit: support commit active layer Fix wording. [05/06] qemu-iotests: update test cases for commit active Drop is_active. Experimental for reviewers: the side by side diff against previous series: http://goo.gl/vgN6mc v5: Address comments from Eric and Paolo: Add mirror_start_job and front end wrapper. [Paolo] Base on BlockJobType enum in QAPI. [Eric] Drop "common" sync mode. [Eric] v4: Rewrite to reuse block/mirror.c. When committing the active layer, the job is internally a mirror job with type name faked to "commit". When the job completes, the BDSes are swapped, so the base image become active and [top, base) dropped. Fam Zheng (7): blkdebug: Use QLIST_FOREACH_SAFE to resume IO mirror: Don't close target mirror: Move base to MirrorBlockJob block: Add commit_active_start() commit: Support commit active layer qemu-iotests: Update test cases for commit active commit: Remove unused check block/blkdebug.c | 8 ++--- block/commit.c | 8 +---- block/mirror.c | 78 +++++++++++++++++++++++++++++++++++++++-------- blockdev.c | 9 ++++-- include/block/block_int.h | 22 +++++++++++-- qapi-schema.json | 5 +-- tests/qemu-iotests/040 | 74 +++++++++++++++++++------------------------- 7 files changed, 131 insertions(+), 73 deletions(-) -- 1.8.5.1