lkml.org 
[lkml]   [2023]   [Aug]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v6 27/38] um: Implement the new page table range API
    Date
    Add PFN_PTE_SHIFT and update_mmu_cache_range().

    Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
    Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
    Cc: Richard Weinberger <richard@nod.at>
    Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
    Cc: Johannes Berg <johannes@sipsolutions.net>
    Cc: linux-um@lists.infradead.org
    ---
    arch/um/include/asm/pgtable.h | 7 ++-----
    1 file changed, 2 insertions(+), 5 deletions(-)

    diff --git a/arch/um/include/asm/pgtable.h b/arch/um/include/asm/pgtable.h
    index a70d1618eb35..44f6c76167d9 100644
    --- a/arch/um/include/asm/pgtable.h
    +++ b/arch/um/include/asm/pgtable.h
    @@ -242,11 +242,7 @@ static inline void set_pte(pte_t *pteptr, pte_t pteval)
    if(pte_present(*pteptr)) *pteptr = pte_mknewprot(*pteptr);
    }

    -static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
    - pte_t *pteptr, pte_t pteval)
    -{
    - set_pte(pteptr, pteval);
    -}
    +#define PFN_PTE_SHIFT PAGE_SHIFT

    #define __HAVE_ARCH_PTE_SAME
    static inline int pte_same(pte_t pte_a, pte_t pte_b)
    @@ -290,6 +286,7 @@ struct mm_struct;
    extern pte_t *virt_to_pte(struct mm_struct *mm, unsigned long addr);

    #define update_mmu_cache(vma,address,ptep) do {} while (0)
    +#define update_mmu_cache_range(vmf, vma, address, ptep, nr) do {} while (0)

    /*
    * Encode/decode swap entries and swap PTEs. Swap PTEs are all PTEs that
    --
    2.40.1
    \
     
     \ /
      Last update: 2023-08-02 17:17    [W:5.123 / U:0.024 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site