From: Matthew Wilcox (Oracle) <willy@infradead.org>
Date: Tue, 21 Jun 2022 20:47:12 +0000 (+0000)
Subject: mm/pagewalk: use vma_find() instead of vma linked list
X-Git-Tag: maple_v12_fixes~199
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=1f6e81341a844d11cb10b63a34f642dc8797b053;p=users%2Fjedix%2Flinux-maple.git

mm/pagewalk: use vma_find() instead of vma linked list

walk_page_range() no longer uses the one vma linked list reference.

Link: https://lkml.kernel.org/r/20220504011345.662299-47-Liam.Howlett@oracle.com
Link: https://lkml.kernel.org/r/20220621204632.3370049-63-Liam.Howlett@oracle.com
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Howells <dhowells@redhat.com>
Cc: SeongJae Park <sj@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/pagewalk.c b/mm/pagewalk.c
index 9b3db11a4d1d..53e5c145fcce 100644
--- a/mm/pagewalk.c
+++ b/mm/pagewalk.c
@@ -456,7 +456,7 @@ int walk_page_range(struct mm_struct *mm, unsigned long start,
 		} else { /* inside vma */
 			walk.vma = vma;
 			next = min(end, vma->vm_end);
-			vma = vma->vm_next;
+			vma = find_vma(mm, vma->vm_end);
 
 			err = walk_page_test(start, next, &walk);
 			if (err > 0) {