From: Matthew Wilcox (Oracle) <willy@infradead.org>
Date: Mon, 22 Aug 2022 15:06:24 +0000 (+0000)
Subject: um: remove vma linked list walk
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=2cb61f26a0ddf70b76909ca77dc0a0f01b93a090;p=users%2Fjedix%2Flinux-maple.git

um: remove vma linked list walk

Use the VMA iterator instead.

Link: https://lkml.kernel.org/r/20220822150128.1562046-40-Liam.Howlett@oracle.com
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: SeongJae Park <sj@kernel.org>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will@kernel.org>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c
index bc38f79ca3a3..ad449173a1a1 100644
--- a/arch/um/kernel/tlb.c
+++ b/arch/um/kernel/tlb.c
@@ -584,21 +584,19 @@ 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;
+	VMA_ITERATOR(vmi, mm, 0);
 
-	while (vma != NULL) {
+	for_each_vma(vmi, vma)
 		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;
+	VMA_ITERATOR(vmi, mm, 0);
 
-	while (vma != NULL) {
+	for_each_vma(vmi, vma)
 		fix_range(mm, vma->vm_start, vma->vm_end, 1);
-		vma = vma->vm_next;
-	}
 }