PFN_ALIGN 1100 arch/x86/mm/init_32.c unsigned long start = PFN_ALIGN(_text); PFN_ALIGN 1101 arch/x86/mm/init_32.c unsigned long size = PFN_ALIGN(_etext) - start; PFN_ALIGN 966 arch/x86/mm/init_64.c unsigned long start = PFN_ALIGN(_stext), end = PFN_ALIGN(__end_rodata);