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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
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- Re: [Qemu-devel] [RFC] qcow2 journalling draft, (continued)
- Re: [Qemu-devel] [RFC] qcow2 journalling draft, Stefan Hajnoczi, 2013/09/05
- Re: [Qemu-devel] [RFC] qcow2 journalling draft, Kevin Wolf, 2013/09/05
- Re: [Qemu-devel] [RFC] qcow2 journalling draft, Stefan Hajnoczi, 2013/09/05
- Re: [Qemu-devel] [RFC] qcow2 journalling draft, Kevin Wolf, 2013/09/05
- Re: [Qemu-devel] [RFC] qcow2 journalling draft,
Eric Blake <=
- Re: [Qemu-devel] [RFC] qcow2 journalling draft, Fam Zheng, 2013/09/06
- Re: [Qemu-devel] [RFC] qcow2 journalling draft, Kevin Wolf, 2013/09/06
- Re: [Qemu-devel] [RFC] qcow2 journalling draft, Fam Zheng, 2013/09/06
Re: [Qemu-devel] [RFC] qcow2 journalling draft, Max Reitz, 2013/09/04
Re: [Qemu-devel] [RFC] qcow2 journalling draft, Stefan Hajnoczi, 2013/09/05
Re: [Qemu-devel] [RFC] qcow2 journalling draft, Fam Zheng, 2013/09/06