On 25/03/2015 10:36, Wen Congyang wrote: > Block replication is a very important feature which is used for > continuous checkpoints(for example: COLO). > > Usage: > Please refer to docs/block-replication.txt > > You can get the patch here: > https://github.com/wencongyang/qemu-colo/commits/block-replication-v2 > > Changs Log: > V2: > 1. Redesign the secondary qemu(use image-fleecing) > 2. Use Error objects to return error message > 3. Address the comments from Max Reitz and Eric Blake > > Wen Congyang (13): > docs: block replication's description > quorum: allow ignoring child errors > NBD client: connect to nbd server later > Add new block driver interfaces to control block replication > quorum: implement block driver interfaces for block replication > NBD client: implement block driver interfaces for block replication > allow writing to the backing file > Allow creating backup jobs when opening BDS > block: Parse "backing_reference" option to reference existing BDS > Backup: clear all bitmap when doing block checkpoint > qcow2: support colo > skip nbd_target when starting block replication > Don't allow a disk use backing reference target > > block.c | 242 +++++++++++++++++++++++- > block/Makefile.objs | 2 +- > block/backup.c | 12 ++ > block/nbd.c | 171 +++++++++++++++-- > block/qcow2.c | 447 > ++++++++++++++++++++++++++++++++++++++++++++- > block/qcow2.h | 6 + > block/quorum.c | 143 ++++++++++++++- > docs/block-replication.txt | 147 +++++++++++++++ > include/block/block.h | 5 + > include/block/block_int.h | 13 ++ > include/qemu/hbitmap.h | 8 + > qapi/block.json | 16 ++ > tests/qemu-iotests/051 | 13 ++ > tests/qemu-iotests/051.out | 13 ++ > util/hbitmap.c | 19 ++ > 15 files changed, 1230 insertions(+), 27 deletions(-) > create mode 100644 docs/block-replication.txt >
Looks nice! I've reviewed the patches where I'm competent. Paolo
