diff mbox series

[v3,06/15] s390/pgtable: define PFN_PTE_SHIFT

Message ID 20240129124649.189745-7-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/s390/include/asm/pgtable.h | 2 ++
 1 file changed, 2 insertions(+)

Comments

Mike Rapoport Feb. 8, 2024, 6:15 a.m. UTC | #1
On Mon, Jan 29, 2024 at 01:46:40PM +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/s390/include/asm/pgtable.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
> index 1299b56e43f6..4b91e65c85d9 100644
> --- a/arch/s390/include/asm/pgtable.h
> +++ b/arch/s390/include/asm/pgtable.h
> @@ -1316,6 +1316,8 @@ pgprot_t pgprot_writecombine(pgprot_t prot);
>  #define pgprot_writethrough	pgprot_writethrough
>  pgprot_t pgprot_writethrough(pgprot_t prot);
>  
> +#define PFN_PTE_SHIFT		PAGE_SHIFT
> +
>  /*
>   * Set multiple PTEs to consecutive pages with a single call.  All PTEs
>   * are within the same folio, PMD and VMA.
> -- 
> 2.43.0
> 
>
diff mbox series

Patch

diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 1299b56e43f6..4b91e65c85d9 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -1316,6 +1316,8 @@  pgprot_t pgprot_writecombine(pgprot_t prot);
 #define pgprot_writethrough	pgprot_writethrough
 pgprot_t pgprot_writethrough(pgprot_t prot);
 
+#define PFN_PTE_SHIFT		PAGE_SHIFT
+
 /*
  * Set multiple PTEs to consecutive pages with a single call.  All PTEs
  * are within the same folio, PMD and VMA.