xen/balloon: the balloon_lock is useless
The balloon_lock is useless, since it protects nothing against nothing.
Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
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The balloon_lock is useless, since it protects nothing against nothing.
Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>