[libvirt] [PATCH 4/4] qemu: snapshot: Add support for compressing external snapshot memory

[Daniel P. Berrange]

On Wed, Oct 09, 2013 at 06:31:32PM +0200, Peter Krempa wrote:
> The regular save image code has the support to compress images using a
> specified algorithm. This was not implemented for external checkpoints
> although it shares most of the backend code.
> 
> Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1017227
> ---
>  src/qemu/qemu.conf     |  6 ++++++
>  src/qemu/qemu_conf.c   |  1 +
>  src/qemu/qemu_conf.h   |  1 +
>  src/qemu/qemu_driver.c | 23 +++++++++++++++++++++--
>  4 files changed, 29 insertions(+), 2 deletions(-)
> 
> diff --git a/src/qemu/qemu.conf b/src/qemu/qemu.conf
> index 7cf67df..aff5e6d 100644
> --- a/src/qemu/qemu.conf
> +++ b/src/qemu/qemu.conf
> @@ -283,9 +283,15 @@
>  # specified format isn't valid, or the requested compression program can't be
>  # found.
>  #
> +# snapshot_image_format specifies the compression algorithm of the memory save
> +# image when an external snapshot of a domain is taken. This does not apply
> +# on disk image format. It is an error if the specified format isn't valid,
> +# or the requested compression program can't be found.
> +#
>  #save_image_format = "raw"
>  #dump_image_format = "raw"
>  #managedsave_image_format = "raw"
> +#snapshot_image_format = "raw"

Same question here as previous patch. A snapshot is really just another
form of saved image.

Daniel
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