text: #ifndef _S390_CACHEFLUSH_H
  #define _S390_CACHEFLUSH_H
  
  /* Keep includes the same across arches.  */
  #include <linux/mm.h>
  
  /* Caches aren't brain-dead on the s390. */
  #define flush_cache_all()			do { } while (0)
  #define flush_cache_mm(mm)			do { } while (0)
  #define flush_cache_range(vma, start, end)	do { } while (0)
  #define flush_cache_page(vma, vmaddr)		do { } while (0)
  #define flush_dcache_page(page)			do { } while (0)
  #define flush_icache_range(start, end)		do { } while (0)
  #define flush_icache_page(vma,pg)		do { } while (0)
  #define flush_icache_user_range(vma,pg,adr,len)	do { } while (0)
  #define flush_cache_vmap(start, end)		do { } while (0)
  #define flush_cache_vunmap(start, end)		do { } while (0)
  
  #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
  	memcpy(dst, src, len)
  #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
  	memcpy(dst, src, len)
  
  #endif /* _S390_CACHEFLUSH_H */
  