On 08/23/2012 01:28 PM, Rafael Aquini wrote:

What about keep a conter at virtio_balloon structure on how much pages are
isolated from balloon's list and check it at leak time?
if the counter gets > 0 than we can safely put leak_balloon() to wait until
balloon page list gets completely refilled.

We only have to wait if we failed to leak enough
pages, and then only for as many additional pages
as we require.

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