> On Tue, 2016-04-19 at 15:02 +0000, Li, Liang Z wrote:
> > >
> > > On Tue, 2016-04-19 at 22:34 +0800, Liang Li wrote:
> > > >
> > > > The free page bitmap will be sent to QEMU through virtio interface
> > > > and used for live migration optimization.
> > > > Drop the cache before building the free page bitmap can get more
> > > > free pages. Whether dropping the cache is decided by user.
> > > >
> > > How do you prevent the guest from using those recently-freed pages
> > > for something else, between when you build the bitmap and the live
> > > migration completes?
> > Because the dirty page logging is enabled before building the bitmap,
> > there is no need to prevent the guest from using the recently-freed
> > pages ...
>
> Fair enough.
>
> It would be good to have that mentioned in the changelog.
Yes, I will. Thanks!
Liang
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