* [PATCH v4 26/36] um: Implement the new page table range API
[not found] <20230315051444.3229621-1-willy@infradead.org>
@ 2023-03-15 5:14 ` Matthew Wilcox (Oracle)
2023-03-15 10:12 ` Mike Rapoport
0 siblings, 1 reply; 2+ messages in thread
From: Matthew Wilcox (Oracle) @ 2023-03-15 5:14 UTC (permalink / raw)
To: linux-arch
Cc: Matthew Wilcox (Oracle),
linux-mm, linux-kernel, Richard Weinberger, Anton Ivanov,
Johannes Berg, linux-um
Add PFN_PTE_SHIFT and update_mmu_cache_range().
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.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..ea5f8122f128 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(vma, address, ptep, nr) do {} while (0)
/*
* Encode/decode swap entries and swap PTEs. Swap PTEs are all PTEs that
--
2.39.2
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^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v4 26/36] um: Implement the new page table range API
2023-03-15 5:14 ` [PATCH v4 26/36] um: Implement the new page table range API Matthew Wilcox (Oracle)
@ 2023-03-15 10:12 ` Mike Rapoport
0 siblings, 0 replies; 2+ messages in thread
From: Mike Rapoport @ 2023-03-15 10:12 UTC (permalink / raw)
To: Matthew Wilcox (Oracle)
Cc: linux-arch, linux-mm, linux-kernel, Richard Weinberger,
Anton Ivanov, Johannes Berg, linux-um
On Wed, Mar 15, 2023 at 05:14:34AM +0000, Matthew Wilcox (Oracle) wrote:
> Add PFN_PTE_SHIFT and update_mmu_cache_range().
>
> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.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
Acked-by: Mike Rapoport (IBM) <rppt@kernel.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..ea5f8122f128 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(vma, address, ptep, nr) do {} while (0)
>
> /*
> * Encode/decode swap entries and swap PTEs. Swap PTEs are all PTEs that
> --
> 2.39.2
>
>
--
Sincerely yours,
Mike.
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http://lists.infradead.org/mailman/listinfo/linux-um
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2023-03-15 5:14 ` [PATCH v4 26/36] um: Implement the new page table range API Matthew Wilcox (Oracle)
2023-03-15 10:12 ` Mike Rapoport
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