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    Subject[PATCH 02 of 36] x86: unify pte_same
    Date
    From
    Impact: cleanup

    Unify and demacro pte_same.

    Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
    ---
    arch/x86/include/asm/pgtable-3level.h | 6 ------
    arch/x86/include/asm/pgtable.h | 6 ++++++
    arch/x86/include/asm/pgtable_64.h | 2 --
    3 files changed, 6 insertions(+), 8 deletions(-)

    diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h
    --- a/arch/x86/include/asm/pgtable-3level.h
    +++ b/arch/x86/include/asm/pgtable-3level.h
    @@ -145,12 +145,6 @@
    #define native_ptep_get_and_clear(xp) native_local_ptep_get_and_clear(xp)
    #endif

    -#define __HAVE_ARCH_PTE_SAME
    -static inline int pte_same(pte_t a, pte_t b)
    -{
    - return a.pte_low == b.pte_low && a.pte_high == b.pte_high;
    -}
    -
    /*
    * Bits 0, 6 and 7 are taken in the low part of the pte,
    * put the 32 bits of offset into the high part.
    diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
    --- a/arch/x86/include/asm/pgtable.h
    +++ b/arch/x86/include/asm/pgtable.h
    @@ -462,6 +462,12 @@
    return !pte.pte;
    }

    +#define __HAVE_ARCH_PTE_SAME
    +static inline int pte_same(pte_t a, pte_t b)
    +{
    + return a.pte == b.pte;
    +}
    +
    #endif /* __ASSEMBLY__ */

    #ifdef CONFIG_X86_32
    diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
    --- a/arch/x86/include/asm/pgtable_64.h
    +++ b/arch/x86/include/asm/pgtable_64.h
    @@ -133,8 +133,6 @@
    native_set_pgd(pgd, native_make_pgd(0));
    }

    -#define pte_same(a, b) ((a).pte == (b).pte)
    -
    #endif /* !__ASSEMBLY__ */

    #define PMD_SIZE (_AC(1, UL) << PMD_SHIFT)



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