In order to fix a bug, arm64 needs access to the vma inside it's implementation of set_huge_pte_at(). Provide for this by converting the mm parameter to be a vma. Any implementations that require the mm can access it via vma->vm_mm.
This commit makes the required riscv modifications. Separate commits update the other arches and core code, before the actual bug is fixed in arm64.
No behavioral changes intended.
Signed-off-by: Ryan Roberts ryan.roberts@arm.com --- arch/riscv/include/asm/hugetlb.h | 2 +- arch/riscv/mm/hugetlbpage.c | 3 ++- 2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/riscv/include/asm/hugetlb.h b/arch/riscv/include/asm/hugetlb.h index 34e24f078cc1..be1ac8582bc2 100644 --- a/arch/riscv/include/asm/hugetlb.h +++ b/arch/riscv/include/asm/hugetlb.h @@ -17,7 +17,7 @@ void huge_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep, unsigned long sz);
#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT -void set_huge_pte_at(struct mm_struct *mm, +void set_huge_pte_at(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep, pte_t pte);
#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR diff --git a/arch/riscv/mm/hugetlbpage.c b/arch/riscv/mm/hugetlbpage.c index 96225a8533ad..7cdbf0960772 100644 --- a/arch/riscv/mm/hugetlbpage.c +++ b/arch/riscv/mm/hugetlbpage.c @@ -177,11 +177,12 @@ pte_t arch_make_huge_pte(pte_t entry, unsigned int shift, vm_flags_t flags) return entry; }
-void set_huge_pte_at(struct mm_struct *mm, +void set_huge_pte_at(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep, pte_t pte) { + struct mm_struct *mm = vma->vm_mm; int i, pte_num;
if (!pte_napot(pte)) {