begin_ul 834 arch/x86/mm/init.c unsigned long begin_ul = (unsigned long)begin; begin_ul 836 arch/x86/mm/init.c unsigned long len_pages = (end_ul - begin_ul) >> PAGE_SHIFT; begin_ul 839 arch/x86/mm/init.c free_init_pages("unused kernel image", begin_ul, end_ul); begin_ul 857 arch/x86/mm/init.c set_memory_np_noalias(begin_ul, len_pages);