Re: [Qemu-devel] [PATCH v5 09/11] blockdev: add DriveBackup transaction

[Kevin Wolf]

Am 30.05.2013 um 14:34 hat Stefan Hajnoczi geschrieben:
> This patch adds a transactional version of the drive-backup QMP command.
> It allows atomic snapshots of multiple drives along with automatic
> cleanup if there is a failure to start one of the backup jobs.
> 
> Note that QMP events are emitted for block job completion/cancellation
> and the block job will be listed by query-block-jobs.
> 
> @device: the name of the device whose writes should be mirrored.
> 
> @target: the target of the new image. If the file exists, or if it
>          is a device, the existing file/device will be used as the new
>          destination.  If it does not exist, a new file will be created.
> 
> @format: #optional the format of the new destination, default is to
>          probe if @mode is 'existing', else the format of the source
> 
> @mode: #optional whether and how QEMU should create a new image, default is
>        'absolute-paths'.
> 
> @speed: #optional the maximum speed, in bytes per second
> 
> @on-source-error: #optional the action to take on an error on the source,
>                   default 'report'.  'stop' and 'enospc' can only be used
>                   if the block device supports io-status (see BlockInfo).
> 
> @on-target-error: #optional the action to take on an error on the target,
>                   default 'report' (no limitations, since this applies to
>                   a different block device than @device).
> 
> Signed-off-by: Stefan Hajnoczi <address@hidden>

Reviewed-by: Kevin Wolf <address@hidden>