| 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 |
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 --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.
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(+)