From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Wed, 20 Jul 2022 02:18:02 +0000 (+0000)
Subject: mm/oom_kill: use vma iterators instead of vma linked list
X-Git-Tag: howlett/maple/20220906~9
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=a244b66bd1e2b44900b3d08b78cd4e793f7d54c4;p=users%2Fjedix%2Flinux-maple.git

mm/oom_kill: use vma iterators instead of vma linked list

Use vma iterator in preparation of removing the linked list.

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
---

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index c08cffbca0d9..6811aa48a98c 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;