[Qemu-block] [PATCH v4 0/6] COLO block replication supports shared disk case

[zhanghailiang]

COLO block replication doesn't support the shared disk case,
Here we try to implement it and this is the 4th version.

Please review and any commits are welcomed.

Cc: Dr. David Alan Gilbert (git) <address@hidden>
Cc: address@hidden

v4:
- Add proper comment for primary_disk in patch 2 (Stefan)
- Call bdrv_invalidate_cache() while do checkpoint for shared disk in patch 5

v3:
- Fix some comments from Stefan and Eric

v2:
- Drop the patch which add a blk_root() helper
- Fix some comments from Changlong

zhanghailiang (6):
  docs/block-replication: Add description for shared-disk case
  replication: add shared-disk and shared-disk-id options
  replication: Split out backup_do_checkpoint() from
    secondary_do_checkpoint()
  replication: fix code logic with the new shared_disk option
  replication: Implement block replication for shared disk case
  nbd/replication: implement .bdrv_get_info() for nbd and replication
    driver

 block/nbd.c                |  12 +++
 block/replication.c        | 198 ++++++++++++++++++++++++++++++++++-----------
 docs/block-replication.txt | 139 ++++++++++++++++++++++++++++++-
 qapi/block-core.json       |  10 ++-
 4 files changed, 306 insertions(+), 53 deletions(-)

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1.8.3.1