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um: implement the new page table range API
Add PFN_PTE_SHIFT and update_mmu_cache_range(). Link: https://lkml.kernel.org/r/20230802151406.3735276-28-willy@infradead.org 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> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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1 changed files with 2 additions and 5 deletions
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@ -242,11 +242,7 @@ static inline void set_pte(pte_t *pteptr, pte_t pteval)
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if(pte_present(*pteptr)) *pteptr = pte_mknewprot(*pteptr);
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}
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static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
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pte_t *pteptr, pte_t pteval)
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{
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set_pte(pteptr, pteval);
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}
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#define PFN_PTE_SHIFT PAGE_SHIFT
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#define __HAVE_ARCH_PTE_SAME
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static inline int pte_same(pte_t pte_a, pte_t pte_b)
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@ -290,6 +286,7 @@ struct mm_struct;
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extern pte_t *virt_to_pte(struct mm_struct *mm, unsigned long addr);
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#define update_mmu_cache(vma,address,ptep) do {} while (0)
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#define update_mmu_cache_range(vmf, vma, address, ptep, nr) do {} while (0)
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/*
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* Encode/decode swap entries and swap PTEs. Swap PTEs are all PTEs that
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