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The P9 path always uses one vcpu per vcore, so none of the vcore, locks, stolen time, blocking logic, shared waitq, etc., is required. Remove most of it. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20211123095231.1036501-51-npiggin@gmail.com