Thread (180 messages) 180 messages, 3 authors, 2022-01-31
STALE1614d

[PATCH v4 60/66] mm/oom_kill: Use maple tree iterators instead of vma linked list

From: Liam Howlett <hidden>
Date: 2021-12-01 14:39:41
Also in: lkml
Subsystem: memory management, memory management - oom killer, the rest · Maintainers: Andrew Morton, Michal Hocko, Linus Torvalds

From: "Liam R. Howlett" <redacted>

Signed-off-by: Liam R. Howlett <redacted>
---
 mm/oom_kill.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 1ddabefcfb5a..1694b30eb46c 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -516,6 +516,7 @@ bool __oom_reap_task_mm(struct mm_struct *mm)
 {
 	struct vm_area_struct *vma;
 	bool ret = true;
+	MA_STATE(mas, &mm->mm_mt, 0, 0);
 
 	/*
 	 * Tell all users of get_user/copy_from_user etc... that the content
@@ -525,7 +526,7 @@ bool __oom_reap_task_mm(struct mm_struct *mm)
 	 */
 	set_bit(MMF_UNSTABLE, &mm->flags);
 
-	for (vma = mm->mmap ; vma; vma = vma->vm_next) {
+	mas_for_each(&mas, vma, ULONG_MAX) {
 		if (!can_madv_lru_vma(vma))
 			continue;
 
-- 
2.30.2
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