diff mbox series

[v3,04/15] powerpc/pgtable: define PFN_PTE_SHIFT

Message ID 20240129124649.189745-5-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().

Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
 arch/powerpc/include/asm/pgtable.h | 2 ++
 1 file changed, 2 insertions(+)

Comments

Mike Rapoport Feb. 8, 2024, 6:13 a.m. UTC | #1 
On Mon, Jan 29, 2024 at 01:46:38PM +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().
> 
> Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
> Signed-off-by: David Hildenbrand <david@redhat.com>

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

> ---
>  arch/powerpc/include/asm/pgtable.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
> index 9224f23065ff..7a1ba8889aea 100644
> --- a/arch/powerpc/include/asm/pgtable.h
> +++ b/arch/powerpc/include/asm/pgtable.h
> @@ -41,6 +41,8 @@ struct mm_struct;
>  
>  #ifndef __ASSEMBLY__
>  
> +#define PFN_PTE_SHIFT		PTE_RPN_SHIFT
> +
>  void set_ptes(struct mm_struct *mm, unsigned long addr, pte_t *ptep,
>  		pte_t pte, unsigned int nr);
>  #define set_ptes set_ptes
> -- 
> 2.43.0
> 
>
diff mbox series

Patch

diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
index 9224f23065ff..7a1ba8889aea 100644
--- a/arch/powerpc/include/asm/pgtable.h
+++ b/arch/powerpc/include/asm/pgtable.h
@@ -41,6 +41,8 @@  struct mm_struct;
 
 #ifndef __ASSEMBLY__
 
+#define PFN_PTE_SHIFT		PTE_RPN_SHIFT
+
 void set_ptes(struct mm_struct *mm, unsigned long addr, pte_t *ptep,
 		pte_t pte, unsigned int nr);
 #define set_ptes set_ptes