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From:   Liam Howlett <liam.howlett@oracle.com>
To:     "maple-tree@lists.infradead.org" <maple-tree@lists.infradead.org>,
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        Yu Zhao <yuzhao@google.com>, Hugh Dickins <hughd@google.com>
Subject: [PATCH v11 66/69] riscv: use vma iterator for vdso
Thread-Topic: [PATCH v11 66/69] riscv: use vma iterator for vdso
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Date:   Sun, 17 Jul 2022 02:46:58 +0000
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From: "Liam R. Howlett" <Liam.Howlett@Oracle.com>

Remove the linked list use in favour of the vma iterator.

Link: https://lkml.kernel.org/r/20220504011345.662299-51-Liam.Howlett@oracl=
e.com
Link: https://lkml.kernel.org/r/20220621204632.3370049-67-Liam.Howlett@orac=
le.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Howells <dhowells@redhat.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
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/riscv/kernel/vdso.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/kernel/vdso.c b/arch/riscv/kernel/vdso.c
index 69b05b6c181b..692e7ae3dcb8 100644
--- a/arch/riscv/kernel/vdso.c
+++ b/arch/riscv/kernel/vdso.c
@@ -114,11 +114,12 @@ int vdso_join_timens(struct task_struct *task, struct=
 time_namespace *ns)
 {
 	struct mm_struct *mm =3D task->mm;
 	struct vm_area_struct *vma;
+	VMA_ITERATOR(vmi, mm, 0);
 	struct __vdso_info *vdso_info =3D mm->context.vdso_info;
=20
 	mmap_read_lock(mm);
=20
-	for (vma =3D mm->mmap; vma; vma =3D vma->vm_next) {
+	for_each_vma(vmi, vma) {
 		unsigned long size =3D vma->vm_end - vma->vm_start;
=20
 		if (vma_is_special_mapping(vma, vdso_info->dm))
--=20
2.35.1