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Message-ID: <20220720021727.17018-62-Liam.Howlett@oracle.com>
Date:   Wed, 20 Jul 2022 02:18:02 +0000
From:   Liam Howlett <liam.howlett@...cle.com>
To:     "maple-tree@...ts.infradead.org" <maple-tree@...ts.infradead.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Hugh Dickins <hughd@...gle.com>
CC:     Yu Zhao <yuzhao@...gle.com>
Subject: [PATCH v12 61/69] mm/oom_kill: use maple tree iterators instead of
 vma linked list

From: "Liam R. Howlett" <Liam.Howlett@...cle.com>

Link: https://lkml.kernel.org/r/20220504011345.662299-46-Liam.Howlett@oracle.com
Link: https://lkml.kernel.org/r/20220621204632.3370049-62-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@...cle.com>
Acked-by: Vlastimil Babka <vbabka@...e.cz>
Cc: Catalin Marinas <catalin.marinas@....com>
Cc: David Howells <dhowells@...hat.com>
Cc: "Matthew Wilcox (Oracle)" <willy@...radead.org>
Cc: SeongJae Park <sj@...nel.org>
Cc: Will Deacon <will@...nel.org>
Cc: Davidlohr Bueso <dave@...olabs.net>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
---
 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 3c6cf9e3cd66..3996301450e8 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -513,6 +513,7 @@ bool __oom_reap_task_mm(struct mm_struct *mm)
 {
 	struct vm_area_struct *vma;
 	bool ret = true;
+	VMA_ITERATOR(vmi, mm, 0);
 
 	/*
 	 * Tell all users of get_user/copy_from_user etc... that the content
@@ -522,7 +523,7 @@ bool __oom_reap_task_mm(struct mm_struct *mm)
 	 */
 	set_bit(MMF_UNSTABLE, &mm->flags);
 
-	for (vma = mm->mmap ; vma; vma = vma->vm_next) {
+	for_each_vma(vmi, vma) {
 		if (vma->vm_flags & (VM_HUGETLB|VM_PFNMAP))
 			continue;
 
-- 
2.35.1

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