Hi, This is the latest version of the quorum block filter. Since the patch fixing the external_snapshot_prepare QDECREF(options) brain damage that I introduced earlier quorum works fine in every cases.
in V18: Address all Max comments [Max] Fix sample quorum command line usage [Benoît] tested: Ran qemu-iotest including 081 ok quorum command line ok quorum command line snapshot transaction ok quorum QMP by reference ok quorum QMP by reference and snapshot transaction ok quorum QMP at once ok quorum QMP at once and snapshot transaction ok Benoît Canet (12): quorum: Create quorum.c, add QuorumChildRequest and QuorumAIOCB. quorum: Create BDRVQuorumState and BlkDriver and do init. quorum: Add quorum_aio_writev and its dependencies. blkverify: Extract qemu_iovec_clone() and qemu_iovec_compare() from blkverify. quorum: Add quorum_aio_readv. quorum: Add quorum mechanism. quorum: Add quorum_getlength(). quorum: Add quorum_invalidate_cache(). quorum: Add quorum_co_flush(). quorum: Implement recursive .bdrv_recurse_is_first_non_filter in quorum. quorum: Add quorum_open() and quorum_close(). quorum: Add unit test. block/Makefile.objs | 1 + block/blkverify.c | 108 +----- block/quorum.c | 858 +++++++++++++++++++++++++++++++++++++++++++++ configure | 36 ++ docs/qmp/qmp-events.txt | 36 ++ include/monitor/monitor.h | 2 + include/qemu-common.h | 2 + monitor.c | 5 + qapi-schema.json | 21 +- tests/qemu-iotests/081 | 95 +++++ tests/qemu-iotests/081.out | 34 ++ tests/qemu-iotests/group | 1 + util/iov.c | 106 ++++++ 13 files changed, 1198 insertions(+), 107 deletions(-) create mode 100644 block/quorum.c create mode 100755 tests/qemu-iotests/081 create mode 100644 tests/qemu-iotests/081.out -- 1.8.3.2