[libvirt] [PATCH 01/23] qemu: driver: Don't call qemuDomainDetermineDiskChain on block jobs

[Eric Blake]

On 03/15/2017 11:37 AM, Peter Krempa wrote:
> Our code calls it when starting or re-starting the domain or when
> hotplugging the disk so there's nothing to be detected.
> ---
>  src/qemu/qemu_driver.c | 5 -----
>  1 file changed, 5 deletions(-)
> 

I think I added it here because block jobs have the tendency to rewrite
the backing chain (think active commit, for example, which reduces the
backing chain).  Forcing a redetermination is therefore a way to ensure
no stale data associated with the pre-job chain is left in memory.

So I'm not sure this is correct.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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