[libvirt] [PATCH] qemu: mark domain as updated after config updating happened

[Eric Blake]

On 11/24/2010 05:51 AM, Osier Yang wrote:
> * src/qemu/qemu_driver.c (qemudDomainDetachDevice,
> qemudDomainAttachDevice, qemuDomainUpdateDeviceFlags)
> ---
>  src/qemu/qemu_driver.c |    9 +++++++++
>  1 files changed, 9 insertions(+), 0 deletions(-)
> 
> diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> index f00d8a3..b55e189 100644
> --- a/src/qemu/qemu_driver.c
> +++ b/src/qemu/qemu_driver.c
> @@ -8864,6 +8864,9 @@ static int qemudDomainAttachDevice(virDomainPtr dom,
>          goto endjob;
>      }
> 
> +    if (ret == 0 && !vm->updated)
> +        vm->updated = 1;
> +

This could be simplified to:

if (ret == 0)
    vm->updated = 1;

(no harm in re-setting it to 1 if it is already 1, and it can only be 0
or 1).

Are you also missing an update when vcpus are modified?  I'm wondering
if it would be better to make virDomainSaveStatus auto-set the updated
field, rather than making every call have to independently do it.

-- 
Eric Blake   eblake at redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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