[libvirt] [PATCHv2 2/2] qemu: add separate rerror_policy for disk errors

[Eric Blake]

On 10/05/2011 09:06 PM, Laine Stump wrote:
> Previously libvirt's disk device XML only had a single attribute,
> error_policy, to control both read and write error policy, but qemu
> has separate options for controlling read and write. In one case
> (enospc) a policy is allowed for write errors but not read errors.
>
> This patch adds a separate attribute that sets only the read error
> policy. If just error_policy is set, it will apply to both read and
> write error policy (previous behavior), but if the new rerror_policy
> attribute is set, it will override error_policy for read errors only.
> Possible values for rerror_policy are "stop", "report", and "ignore"
> ("report" is the qemu-controlled default for rerror_policy when
> error_policy isn't specified).
>
> For consistency, the value "report" has been added to the possible
> values for error_policy as well.

ACK.  This turned out a lot nicer compared to v1, now that we had time 
to think about the issues.

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