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block: Remove BB interface from blockdev-add/del

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With this patch, blockdev-add always works on a node level, i.e. it
creates a BDS, but no BB. Consequently, x-blockdev-del doesn't need the
'device' option any more, but 'node-name' becomes mandatory.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Kevin Wolf 2016-09-21 14:56:11 +02:00
parent 7864588150
commit 9ec8873e68
4 changed files with 50 additions and 134 deletions
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24
docs/qmp-commands.txt
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@ -3141,7 +3141,7 @@ Example (2):
"arguments": {
"options": {
"driver": "qcow2",
"id": "my_disk",
"node-name": "my_disk",
"discard": "unmap",
"cache": {
"direct": true,
@ -3168,18 +3168,9 @@ x-blockdev-del
------------
Since 2.5
Deletes a block device thas has been added using blockdev-add.
The selected device can be either a block backend or a graph node.
In the former case the backend will be destroyed, along with its
inserted medium if there's any. The command will fail if the backend
or its medium are in use.
In the latter case the node will be destroyed. The command will fail
if the node is attached to a block backend or is otherwise being
used.
One of "id" or "node-name" must be specified, but not both.
Deletes a block device that has been added using blockdev-add.
The command will fail if the node is attached to a device or is
otherwise being used.
This command is still a work in progress and is considered
experimental. Stay away from it unless you want to help with its
@ -3187,8 +3178,7 @@ development.
Arguments:
- "id": Name of the block backend device to delete (json-string, optional)
- "node-name": Name of the graph node to delete (json-string, optional)
- "node-name": Name of the graph node to delete (json-string)
Example:
@ -3196,7 +3186,7 @@ Example:
"arguments": {
"options": {
"driver": "qcow2",
"id": "drive0",
"node-name": "node0",
"file": {
"driver": "file",
"filename": "test.qcow2"
@ -3208,7 +3198,7 @@ Example:
<- { "return": {} }
-> { "execute": "x-blockdev-del",
"arguments": { "id": "drive0" }
"arguments": { "node-name": "node0" }
}
<- { "return": {} }