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    Subject[RFC][PATCH 18/35] um: create ptemap.h
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    Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
    ---

    linux-2.6.git-dave/arch/um/include/asm/pgtable.h | 7 +------
    linux-2.6.git-dave/arch/um/include/asm/ptemap.h | 10 ++++++++++
    2 files changed, 11 insertions(+), 6 deletions(-)

    diff -puN arch/um/include/asm/pgtable.h~um-ptemaph arch/um/include/asm/pgtable.h
    --- linux-2.6.git/arch/um/include/asm/pgtable.h~um-ptemaph 2009-04-30 15:11:02.000000000 -0700
    +++ linux-2.6.git-dave/arch/um/include/asm/pgtable.h 2009-04-30 15:11:02.000000000 -0700
    @@ -331,12 +331,7 @@ static inline pte_t pte_modify(pte_t pte
    #define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
    #define pte_offset_kernel(dir, address) \
    ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address))
    -#define pte_offset_map(dir, address) \
    - ((pte_t *)page_address(pmd_page(*(dir))) + pte_index(address))
    -#define pte_offset_map_nested(dir, address) pte_offset_map(dir, address)
    -#define pte_unmap(pte) do { } while (0)
    -#define pte_unmap_nested(pte) do { } while (0)
    -
    +#include <asm/ptemap.h>
    struct mm_struct;
    extern pte_t *virt_to_pte(struct mm_struct *mm, unsigned long addr);

    diff -puN arch/um/include/asm/ptemap.h~um-ptemaph arch/um/include/asm/ptemap.h
    --- linux-2.6.git/arch/um/include/asm/ptemap.h~um-ptemaph 2009-04-30 15:11:02.000000000 -0700
    +++ linux-2.6.git-dave/arch/um/include/asm/ptemap.h 2009-04-30 15:11:02.000000000 -0700
    @@ -0,0 +1,10 @@
    +#ifndef _UM_ASM_PTEMAP_H
    +#define _UM_ASM_PTEMAP_H
    +
    +#define pte_offset_map(dir, address) \
    + ((pte_t *)page_address(pmd_page(*(dir))) + pte_index(address))
    +#define pte_offset_map_nested(dir, address) pte_offset_map(dir, address)
    +#define pte_unmap(pte) do { } while (0)
    +#define pte_unmap_nested(pte) do { } while (0)
    +
    +#endif /* _UM_ASM_PTEMAP_H */
    _

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