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[v2,05/15] riscv/pgtable: define PFN_PTE_SHIFT

Message ID 20240125193227.444072-6-david@redhat.com (mailing list archive)
State Handled Elsewhere, archived
Headers show
Series mm/memory: optimize fork() with PTE-mapped THP | expand

Commit Message

David Hildenbrand Jan. 25, 2024, 7:32 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: Alexandre Ghiti <alexghiti@rivosinc.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
 arch/riscv/include/asm/pgtable.h | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
index 0c94260b5d0c1..add5cd30ab34d 100644
--- a/arch/riscv/include/asm/pgtable.h
+++ b/arch/riscv/include/asm/pgtable.h
@@ -523,6 +523,8 @@  static inline void __set_pte_at(pte_t *ptep, pte_t pteval)
 	set_pte(ptep, pteval);
 }
 
+#define PFN_PTE_SHIFT		_PAGE_PFN_SHIFT
+
 static inline void set_ptes(struct mm_struct *mm, unsigned long addr,
 		pte_t *ptep, pte_t pteval, unsigned int nr)
 {