qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] [RFC] qcow2 journalling draft


From: Eric Blake
Subject: Re: [Qemu-devel] [RFC] qcow2 journalling draft
Date: Thu, 05 Sep 2013 09:56:43 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130805 Thunderbird/17.0.8

On 09/05/2013 09:20 AM, Kevin Wolf wrote:
> 
> One additional thought that might make the thing a bit more interesting:
> Sequence numbers can wrap around as well.

On the other hand, if sequence numbers are 64-bit, the number of
operations required to cause a wrap far exceeds the expected lifetime of
any of us on this list, and we can safely assume it to be a non-issue.
(There's other places in qemu where we intentionally have an abort() if
a 64-bit number would wrap...)

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

Attachment: signature.asc
Description: OpenPGP digital signature


reply via email to

[Prev in Thread] Current Thread [Next in Thread]