diff mbox series

[v3,02/15] arm/pgtable: define PFN_PTE_SHIFT

Message ID 20240129124649.189745-3-david@redhat.com (mailing list archive)
State New
Headers show
Series mm/memory: optimize fork() with PTE-mapped THP | expand

Commit Message

David Hildenbrand Jan. 29, 2024, 12:46 p.m. UTC
We want to make use of pte_next_pfn() outside of set_ptes(). Let's
simply define PFN_PTE_SHIFT, required by pte_next_pfn().

Signed-off-by: David Hildenbrand <david@redhat.com>
---
 arch/arm/include/asm/pgtable.h | 2 ++
 1 file changed, 2 insertions(+)

Comments

Mike Rapoport Feb. 8, 2024, 6:11 a.m. UTC | #1
On Mon, Jan 29, 2024 at 01:46:36PM +0100, David Hildenbrand wrote:
> We want to make use of pte_next_pfn() outside of set_ptes(). Let's
> simply define PFN_PTE_SHIFT, required by pte_next_pfn().
> 
> Signed-off-by: David Hildenbrand <david@redhat.com>

Reviewed-by: Mike Rapoport (IBM) <rppt@kernel.org>

> ---
>  arch/arm/include/asm/pgtable.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
> index d657b84b6bf7..be91e376df79 100644
> --- a/arch/arm/include/asm/pgtable.h
> +++ b/arch/arm/include/asm/pgtable.h
> @@ -209,6 +209,8 @@ static inline void __sync_icache_dcache(pte_t pteval)
>  extern void __sync_icache_dcache(pte_t pteval);
>  #endif
>  
> +#define PFN_PTE_SHIFT		PAGE_SHIFT
> +
>  void set_ptes(struct mm_struct *mm, unsigned long addr,
>  		      pte_t *ptep, pte_t pteval, unsigned int nr);
>  #define set_ptes set_ptes
> -- 
> 2.43.0
> 
>
diff mbox series

Patch

diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index d657b84b6bf7..be91e376df79 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -209,6 +209,8 @@  static inline void __sync_icache_dcache(pte_t pteval)
 extern void __sync_icache_dcache(pte_t pteval);
 #endif
 
+#define PFN_PTE_SHIFT		PAGE_SHIFT
+
 void set_ptes(struct mm_struct *mm, unsigned long addr,
 		      pte_t *ptep, pte_t pteval, unsigned int nr);
 #define set_ptes set_ptes