If quorum's child is broken, we can use mirror job to replace it. But sometimes, the user only need to remove the broken child, and add it later when the problem is fixed.
It is based on the following patch: http://lists.nongnu.org/archive/html/qemu-devel/2015-09/msg04579.html ChangLog: v5: 1. Address Eric Blake's comments v4: 1. drop nbd driver's implementation. We can use human-monitor-command to do it. 2. Rename the command name. v3: 1. Don't open BDS in bdrv_add_child(). Use the existing BDS which is created by the QMP command blockdev-add. 2. The driver NBD can support filename, path, host:port now. v2: 1. Use bdrv_get_device_or_node_name() instead of new function bdrv_get_id_or_node_name() 2. Update the error message 3. Update the documents in block-core.json Wen Congyang (4): Add new block driver interface to add/delete a BDS's child quorum: implement bdrv_add_child() and bdrv_del_child() qmp: add monitor command to add/remove a child hmp: add monitor command to add/remove a child block.c | 56 ++++++++++++++++++++++++++++++++++-- block/quorum.c | 72 +++++++++++++++++++++++++++++++++++++++++++++-- blockdev.c | 48 +++++++++++++++++++++++++++++++ hmp-commands.hx | 28 ++++++++++++++++++ hmp.c | 20 +++++++++++++ hmp.h | 2 ++ include/block/block.h | 8 ++++++ include/block/block_int.h | 5 ++++ qapi/block-core.json | 34 ++++++++++++++++++++++ qmp-commands.hx | 61 +++++++++++++++++++++++++++++++++++++++ 10 files changed, 329 insertions(+), 5 deletions(-) -- 2.4.3
