sparc64: Do not save/restore interrupts in get_new_mmu_context()
get_new_mmu_context() is always called with interrupts disabled. So it's possible to do this micro optimization. (Also fix the comment to switch_mm, which is called in both cases) Signed-off-by: NKirill Tkhai <tkhai@yandex.ru> CC: David Miller <davem@davemloft.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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