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[v1,03/11] powerpc/pgtable: define PFN_PTE_SHIFT

Message ID 20240122194200.381241-4-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. 22, 2024, 7:41 p.m. UTC 
We want to make use of pte_next_pfn() outside of set_ptes(). Let's
simpliy define PFN_PTE_SHIFT, required by pte_next_pfn().

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

diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
index 9224f23065fff..7a1ba8889aeae 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