From b78e93f85dbabf1b821929c622878f42d8fcb570 Mon Sep 17 00:00:00 2001 From: "Liam R. Howlett" Date: Mon, 4 Jan 2021 15:07:11 -0500 Subject: [PATCH] mm/swapfile: Use vma iterator instead of vma linked list unuse_mm() no longer needs to reference the linked list. Signed-off-by: Liam R. Howlett Acked-by: Vlastimil Babka --- mm/swapfile.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/mm/swapfile.c b/mm/swapfile.c index bf0df7aa7158..fc17e02f12c6 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -2071,14 +2071,16 @@ static int unuse_mm(struct mm_struct *mm, unsigned int type) { struct vm_area_struct *vma; int ret = 0; + VMA_ITERATOR(vmi, mm, 0); mmap_read_lock(mm); - for (vma = mm->mmap; vma; vma = vma->vm_next) { + for_each_vma(vmi, vma) { if (vma->anon_vma) { ret = unuse_vma(vma, type); if (ret) break; } + cond_resched(); } mmap_read_unlock(mm); -- 2.49.0