From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Tue, 16 Mar 2021 19:56:41 +0000 (-0400)
Subject: arch/um/kernel/tlb: Stop using linked list
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=aad0c865b9f3924f671c27776df84cbf89055420;p=users%2Fjedix%2Flinux-maple.git

arch/um/kernel/tlb: Stop using linked list

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

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;
-	}
 }