From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Mon, 4 Jan 2021 19:29:19 +0000 (-0500)
Subject: arch/s390: Use maple tree iterators instead of linked list.
X-Git-Tag: howlett/maple_spf/20210118~37
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=482589e67de5da1c29a253d0c3bb232a077c5cec;p=users%2Fjedix%2Flinux-maple.git

arch/s390: Use maple tree iterators instead of linked list.

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---

diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c
index 9bb2c7512cd5..d8f3f4d40965 100644
--- a/arch/s390/mm/gmap.c
+++ b/arch/s390/mm/gmap.c
@@ -2502,8 +2502,9 @@ static const struct mm_walk_ops thp_split_walk_ops = {
 static inline void thp_split_mm(struct mm_struct *mm)
 {
 	struct vm_area_struct *vma;
+	MA_STATE(mas, &mm->mm_mt, 0, 0);
 
-	for (vma = mm->mmap; vma != NULL; vma = vma->vm_next) {
+	mas_for_each(&mas, vma, ULONG_MAX) {
 		vma->vm_flags &= ~VM_HUGEPAGE;
 		vma->vm_flags |= VM_NOHUGEPAGE;
 		walk_page_vma(vma, &thp_split_walk_ops, NULL);
@@ -2571,8 +2572,9 @@ int gmap_mark_unmergeable(void)
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	int ret;
+	MA_STATE(mas, &mm->mm_mt, 0, 0);
 
-	for (vma = mm->mmap; vma; vma = vma->vm_next) {
+	mas_for_each(&mas, vma, ULONG_MAX) {
 		ret = ksm_madvise(vma, vma->vm_start, vma->vm_end,
 				  MADV_UNMERGEABLE, &vma->vm_flags);
 		if (ret)