From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Mon, 4 Jan 2021 19:24:40 +0000 (-0500)
Subject: arch/arm64: Remove mmap linked list from vdso.
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=0665a302ef0d9c72541b263ae3adac9fcacf9e2b;p=users%2Fjedix%2Flinux-maple.git

arch/arm64: Remove mmap linked list from vdso.

Start using the maple tree

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

diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c
index a61fc4f989b3..838d8f276877 100644
--- a/arch/arm64/kernel/vdso.c
+++ b/arch/arm64/kernel/vdso.c
@@ -136,10 +136,11 @@ int vdso_join_timens(struct task_struct *task, struct time_namespace *ns)
 {
 	struct mm_struct *mm = task->mm;
 	struct vm_area_struct *vma;
+	MA_STATE(mas, &mm->mm_mt, 0, 0);
 
 	mmap_read_lock(mm);
 
-	for (vma = mm->mmap; vma; vma = vma->vm_next) {
+	mas_for_each(&mas, vma, ULONG_MAX) {
 		unsigned long size = vma->vm_end - vma->vm_start;
 
 		if (vma_is_special_mapping(vma, vdso_info[VDSO_ABI_AA64].dm))