diff mbox series

[v2,31/70] arch/powerpc: Remove mmap linked list from mm/book2s32/subpage_prot

Message ID 20210112161240.2024684-32-Liam.Howlett@Oracle.com (mailing list archive)
State New, archived
Headers show
Series RFC mm: Introducing the Maple Tree | expand

Commit Message

Liam R. Howlett Jan. 12, 2021, 4:12 p.m. UTC 
Start using the maple tree

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---
 arch/powerpc/mm/book3s64/subpage_prot.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)
diff mbox series

Patch

diff --git a/arch/powerpc/mm/book3s64/subpage_prot.c b/arch/powerpc/mm/book3s64/subpage_prot.c
index 60c6ea16a972a..ada1531f81be9 100644
--- a/arch/powerpc/mm/book3s64/subpage_prot.c
+++ b/arch/powerpc/mm/book3s64/subpage_prot.c
@@ -149,24 +149,15 @@  static void subpage_mark_vma_nohuge(struct mm_struct *mm, unsigned long addr,
 				    unsigned long len)
 {
 	struct vm_area_struct *vma;
+	MA_STATE(mas, &mm->mm_mt, addr, addr);
 
 	/*
 	 * We don't try too hard, we just mark all the vma in that range
 	 * VM_NOHUGEPAGE and split them.
 	 */
-	vma = find_vma(mm, addr);
-	/*
-	 * If the range is in unmapped range, just return
-	 */
-	if (vma && ((addr + len) <= vma->vm_start))
-		return;
-
-	while (vma) {
-		if (vma->vm_start >= (addr + len))
-			break;
+	mas_for_each(&mas, vma, addr + len) {
 		vma->vm_flags |= VM_NOHUGEPAGE;
 		walk_page_vma(vma, &subpage_walk_ops, NULL);
-		vma = vma->vm_next;
 	}
 }
 #else