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    Subject[ 37/49] sparc: huge_ptep_set_* functions need to call set_huge_pte_at()
    3.2-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Dave Kleikamp <dave.kleikamp@oracle.com>

    [ Upstream commit 6cb9c3697585c47977c42c5cc1b9fc49247ac530 ]

    Modifying the huge pte's requires that all the underlying pte's be
    modified.

    Version 2: added missing flush_tlb_page()

    Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
    Cc: "David S. Miller" <davem@davemloft.net>
    Cc: sparclinux@vger.kernel.org
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
    ---
    arch/sparc/include/asm/hugetlb.h | 10 ++++++++--
    1 file changed, 8 insertions(+), 2 deletions(-)

    diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
    index 1770610..f368cef 100644
    --- a/arch/sparc/include/asm/hugetlb.h
    +++ b/arch/sparc/include/asm/hugetlb.h
    @@ -58,14 +58,20 @@ static inline pte_t huge_pte_wrprotect(pte_t pte)
    static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
    unsigned long addr, pte_t *ptep)
    {
    - ptep_set_wrprotect(mm, addr, ptep);
    + pte_t old_pte = *ptep;
    + set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
    }

    static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
    unsigned long addr, pte_t *ptep,
    pte_t pte, int dirty)
    {
    - return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
    + int changed = !pte_same(*ptep, pte);
    + if (changed) {
    + set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
    + flush_tlb_page(vma, addr);
    + }
    + return changed;
    }

    static inline pte_t huge_ptep_get(pte_t *ptep)



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