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[Qemu-devel] [PATCH 0/4] block: Allow query stats for drive-mirror targe
From: |
Fam Zheng |
Subject: |
[Qemu-devel] [PATCH 0/4] block: Allow query stats for drive-mirror target |
Date: |
Wed, 29 Oct 2014 13:04:00 +0800 |
This series adds an optional bool parameter "query-nodes" to query-blockstats.
By default, if omitted, the behavior is unchanged.
If set to "true", the command will iterate through all named nodes in BDS graph
and report the statistics in a list, similarly. But the backing chain is not
built.
This provides a way for libvirt to watch the allocation status
(wr_highest_offset) of target image. Now, libvirt can start drive-mirror job
specifying a node-name parameter. Thus the created target image gets a node
name that can be queried with the new query-blockstats.
Fam Zheng (4):
block: Add bdrv_next_node
block: Add bdrv_get_node_name
block: Include "node-name" if present in query-blockstats
qmp: Add optional switch "query-nodes" in query-blockstats
block.c | 14 +++++++++++++-
block/qapi.c | 25 ++++++++++++++++++-------
hmp.c | 2 +-
include/block/block.h | 2 ++
qapi/block-core.json | 9 +++++++--
qmp-commands.hx | 2 +-
6 files changed, 42 insertions(+), 12 deletions(-)
--
1.9.3
- [Qemu-devel] [PATCH 0/4] block: Allow query stats for drive-mirror target,
Fam Zheng <=