Messages in this thread | | | From | Rusty Russell <> | Subject | Re: [PATCH v4 00/12] virtio: s4 support | Date | Wed, 07 Dec 2011 21:22:41 +1030 |
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On Wed, 7 Dec 2011 13:14:56 +0530, Amit Shah <amit.shah@redhat.com> wrote: > On (Wed) 07 Dec 2011 [17:54:29], Rusty Russell wrote: > > I figure there's a reason, but it seems a bit weird :) > > Well, there is one reason right now: migrating storage along with > VMs. The guest needs to sync all data to the disk before the target > host accesses the image file.
I don't see why. Sure, if qemu (or whatever) is doing buffering, it needs to flush that. It doesn't, last I looked, it just maps to read/write.
What am I missing?
Thanks, Rusty.
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