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From:   Liam Howlett <liam.howlett@oracle.com>
To:     "maple-tree@lists.infradead.org" <maple-tree@lists.infradead.org>,
        "linux-mm@kvack.org" <linux-mm@kvack.org>,
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        Andrew Morton <akpm@linux-foundation.org>,
        Hugh Dickins <hughd@google.com>
CC:     Yu Zhao <yuzhao@google.com>
Subject: [PATCH v12 39/69] um: remove vma linked list walk
Thread-Topic: [PATCH v12 39/69] um: remove vma linked list walk
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Date:   Wed, 20 Jul 2022 02:17:56 +0000
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From: "Matthew Wilcox (Oracle)" <willy@infradead.org>

Use the VMA iterator instead.

Link: https://lkml.kernel.org/r/20220504011345.662299-24-Liam.Howlett@oracl=
e.com
Link: https://lkml.kernel.org/r/20220621204632.3370049-40-Liam.Howlett@orac=
le.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 Howells <dhowells@redhat.com>
Cc: SeongJae Park <sj@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will@kernel.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 arch/um/kernel/tlb.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

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, unsigne=
d long start,
=20
 void flush_tlb_mm(struct mm_struct *mm)
 {
-	struct vm_area_struct *vma =3D mm->mmap;
+	struct vm_area_struct *vma;
+	VMA_ITERATOR(vmi, mm, 0);
=20
-	while (vma !=3D NULL) {
+	for_each_vma(vmi, vma)
 		fix_range(mm, vma->vm_start, vma->vm_end, 0);
-		vma =3D vma->vm_next;
-	}
 }
=20
 void force_flush_all(void)
 {
 	struct mm_struct *mm =3D current->mm;
-	struct vm_area_struct *vma =3D mm->mmap;
+	struct vm_area_struct *vma;
+	VMA_ITERATOR(vmi, mm, 0);
=20
-	while (vma !=3D NULL) {
+	for_each_vma(vmi, vma)
 		fix_range(mm, vma->vm_start, vma->vm_end, 1);
-		vma =3D vma->vm_next;
-	}
 }
--=20
2.35.1