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Push zero'd pages into the XBZRLE cache
A page that was cached by XBZRLE, zero'd and then XBZRLE'd again
was being compared against a stale cache value
Don't use 'qemu_put_buffer_async' to put pages from the XBZRLE cache
Since the cache might change before the data hits the wire
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
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It is better to fail migration in case of failure to
allocate new cache item
Signed-off-by: Orit Wasserman <owasserm@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
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The page cache frees all data on finish, on resize and
if there is collision on insert. So it should be the caches
responsibility to dup the data that is stored in the cache.
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Orit Wasserman <owasserm@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Juan Quintela <quintela@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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