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    Subject[PATCH] s390: use asm-generic/cacheflush.h
    Date
    The implementation of the cache flushing interfaces on the s390
    is identical with the default implementation in asm-generic.

    Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
    Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
    Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
    Cc: linux390@de.ibm.com
    Cc: linux-s390@vger.kernel.org
    ---
    arch/s390/include/asm/cacheflush.h | 23 +----------------------
    1 files changed, 1 insertions(+), 22 deletions(-)

    diff --git a/arch/s390/include/asm/cacheflush.h b/arch/s390/include/asm/cacheflush.h
    index 405cc97..7e1f776 100644
    --- a/arch/s390/include/asm/cacheflush.h
    +++ b/arch/s390/include/asm/cacheflush.h
    @@ -1,29 +1,8 @@
    #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_dup_mm(mm) do { } while (0)
    -#define flush_cache_range(vma, start, end) do { } while (0)
    -#define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
    -#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
    -#define flush_dcache_page(page) do { } while (0)
    -#define flush_dcache_mmap_lock(mapping) do { } while (0)
    -#define flush_dcache_mmap_unlock(mapping) 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)
    +#include <asm-generic/cacheflush.h>

    #ifdef CONFIG_DEBUG_PAGEALLOC
    void kernel_map_pages(struct page *page, int numpages, int enable);
    --
    1.7.3.4


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