x86, mm, trivial: Remove unnecessary get_order() in free_thread_info()
Because THREAD_SIZE is defined as PAGE_SIZE << THREAD_ORDER on x86, the call of get_order(THREAD_SIZE) can be replaced with THREAD_ORDER. Signed-off-by: NZhao Jin <cronozhj@gmail.com> Link: http://lkml.kernel.org/r/4E4FB5A9.700@gmail.comSigned-off-by: NH. Peter Anvin <hpa@linux.intel.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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