[PATCH v3 46/66] arch/um/kernel/tlb: Stop using linked list

From: Liam Howlett
Date: Mon Oct 04 2021 - 21:32:35 EST


From: "Liam R. Howlett" <Liam.Howlett@xxxxxxxxxx>

Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
---
arch/um/kernel/tlb.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c
index bc38f79ca3a3..0cbbebad70a0 100644
--- a/arch/um/kernel/tlb.c
+++ b/arch/um/kernel/tlb.c
@@ -584,21 +584,21 @@ void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start,

void flush_tlb_mm(struct mm_struct *mm)
{
- struct vm_area_struct *vma = mm->mmap;
+ struct vm_area_struct *vma;
+ MA_STATE(mas, &mm->mm_mt, 0, 0);

- while (vma != NULL) {
+ /* Must hold mm_mt lock already */
+ mas_for_each(&mas, vma, ULONG_MAX)
fix_range(mm, vma->vm_start, vma->vm_end, 0);
- vma = vma->vm_next;
- }
}

void force_flush_all(void)
{
struct mm_struct *mm = current->mm;
- struct vm_area_struct *vma = mm->mmap;
+ struct vm_area_struct *vma;
+ MA_STATE(mas, &mm->mm_mt, 0, 0);

- while (vma != NULL) {
+ /* Must hold mm_mt lock already */
+ mas_for_each(&mas, vma, ULONG_MAX)
fix_range(mm, vma->vm_start, vma->vm_end, 1);
- vma = vma->vm_next;
- }
}
--
2.30.2