1. 根目录:
2. arch
3. s390
4. include
5. asm
6. unaligned.h

#ifndef _ASM_S390_UNALIGNED_H
#define _ASM_S390_UNALIGNED_H

/*
 * The S390 can do unaligned accesses itself. 
 */
#include <linux/unaligned/access_ok.h>
#include <linux/unaligned/generic.h>

#define get_unaligned	__get_unaligned_be
#define put_unaligned	__put_unaligned_be

#endif /* _ASM_S390_UNALIGNED_H */