From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Mon, 4 Jan 2021 19:58:35 +0000 (-0500)
Subject: mm/madvise: Use vma_find() instead of vma linked list
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=7e58a521851567f6f7c465fe478bb9c9c1c00f2d;p=users%2Fjedix%2Flinux-maple.git

mm/madvise: Use vma_find() instead of vma linked list

madvise_walk_vmas() no longer uses linked list.

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
---

diff --git a/mm/madvise.c b/mm/madvise.c
index 5604064df464..2d3210e59826 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -1213,7 +1213,7 @@ int madvise_walk_vmas(struct mm_struct *mm, unsigned long start,
 		if (start >= end)
 			break;
 		if (prev)
-			vma = prev->vm_next;
+			vma = find_vma(mm, prev->vm_end);
 		else	/* madvise_remove dropped mmap_lock */
 			vma = find_vma(mm, start);
 	}