diff mbox series

[v6,65/71] mm/swapfile: Use vma iterator instead of vma linked list

Message ID 20220215144241.3812052-65-Liam.Howlett@oracle.com (mailing list archive)
State New
Headers show
Series Introducing the Maple Tree | expand

Commit Message

Liam R. Howlett Feb. 15, 2022, 2:43 p.m. UTC 
From: "Liam R. Howlett" <Liam.Howlett@Oracle.com>

unuse_mm() no longer needs to reference the linked list.

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
---
 mm/swapfile.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

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);