[libvirt] [PATCH 0/4] Expose FSFreeze/FSThaw within the guest as commands

Daniel P. Berrange berrange at redhat.com
Tue Mar 4 17:13:08 UTC 2014


On Tue, Mar 04, 2014 at 10:11:39AM -0700, Eric Blake wrote:
> On 03/04/2014 08:39 AM, Tomoki Sekiyama wrote:
> 
> >>>
> >>> This patchset adds virDomainFSFreeze()/virDomainFSThaw() APIs and virsh
> >>> domfsfreeze/domfsthaw commands to enable the users to freeze and thaw
> >>> domain's filesystems cleanly.
> 
> > Thanks. Based on previous discussion on last November, now I'm getting
> > ready to
> > Post "virDomainQuiesce" version, which does fsfreeze and fsthaw in a
> > single API,
> 
> No - the discussion back in November was questioning whether a callback
> would work, and the decision was that it was too complicated.  Go with
> two API (freeze and thaw) and merely make sure that we lock out any
> other command that won't work while a freeze is in effect.

Yep, I don't believe a single API will work, and we should have
separate calls. We just need to track the sanity internally to
the QEMU driver.

Regards,
Daniel
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