[libvirt] [PATCH 1/2] support compression at virsh dump

Daniel P. Berrange berrange at redhat.com
Fri Oct 29 10:36:54 UTC 2010


On Thu, Oct 28, 2010 at 07:26:41PM +0900, KAMEZAWA Hiroyuki wrote:
> >From 4f74c4a69785432258ad5ea5e695d1b94aaa5b30 Mon Sep 17 00:00:00 2001
> From: KAMEZAWA Hiroyuki <kamezawa.hiroyu at jp.fujitsu.com>
> Date: Thu, 28 Oct 2010 16:31:46 +0900
> Subject: [PATCH 1/2] add compression support for "virsh dump"
> 
> Add dump_image_format[] to qemu.conf and support compressed dump
> at virsh dump. coredump compression is important for saving disk space
> in an environment where multiple guests run.
> 
> In general, "disk space for dump" is specially allocated and will be
> a dead space in the system. It's used only at emergency. So, it's better
> to have both of save_image_format and dump_image_format. "save" is done
> in scheduled manner with enough calculated disk space for it.
> 
> This code reuses some of save_image_format[] and supports the same format.
> 
> Changelog:
>  - modified libvirtd_qemu.aug
>  - modified test_libvirtd_qemu.aug
>  - fixed error handling of qemudSaveCompressionTypeFromString()
> ---
>  src/qemu/libvirtd_qemu.aug      |    1 +
>  src/qemu/qemu.conf              |    4 +++
>  src/qemu/qemu_conf.c            |   11 ++++++++++
>  src/qemu/qemu_conf.h            |    1 +
>  src/qemu/qemu_driver.c          |   41 ++++++++++++++++++++++++++++++++------
>  src/qemu/test_libvirtd_qemu.aug |    2 +
>  6 files changed, 53 insertions(+), 7 deletions(-)

ACK, looks good.

Daniel
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