[Xen-users] loopback domU write

["Chris Moore" <christoph.moore@xxxxxxxxx>]

I have a architecture-esque question:

When a file-backed(loopback, not blktap) PV domU writes, I have heard that it does not write directly to disk and is buffered somewhere.
Where then, is it buffered?  Is it in the dom0 loopback driver(mem), the dom0 filesystem cache(mem) or somewhere else?

Thanks
Chris

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