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[2/9] riscv: Safely remove huge_pte_offset() when manipulating NAPOT ptes

Message ID 20240301091455.246686-3-alexghiti@rivosinc.com (mailing list archive)
State New
Headers show
Series Merge arm64/riscv hugetlbfs contpte support | expand

Commit Message

Alexandre Ghiti March 1, 2024, 9:14 a.m. UTC 
The pte_t pointer is expected to point to the first entry of the NAPOT
mapping so no need to use huge_pte_offset(), similarly to what is done
in arm64.

Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
---
 arch/riscv/mm/hugetlbpage.c | 3 ---
 1 file changed, 3 deletions(-)
diff mbox series

Patch

diff --git a/arch/riscv/mm/hugetlbpage.c b/arch/riscv/mm/hugetlbpage.c
index 3d84fbc5c572..2477d20c1497 100644
--- a/arch/riscv/mm/hugetlbpage.c
+++ b/arch/riscv/mm/hugetlbpage.c
@@ -274,7 +274,6 @@  int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 		return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
 
 	pte_num = arch_contpte_get_num_contig(ptep, 0, &pgsize);
-	ptep = huge_pte_offset(mm, addr, pte_num * pgsize);
 
 	orig_pte = get_clear_contig_flush(mm, addr, ptep, pte_num);
 
@@ -319,10 +318,8 @@  void huge_ptep_set_wrprotect(struct mm_struct *mm,
 	}
 
 	pte_num = arch_contpte_get_num_contig(ptep, 0, &pgsize);
-	ptep = huge_pte_offset(mm, addr, pte_num * pgsize);
 
 	orig_pte = get_clear_contig_flush(mm, addr, ptep, pte_num);
-
 	orig_pte = pte_wrprotect(orig_pte);
 
 	set_ptes(mm, addr, ptep, orig_pte, pte_num);