linux-kernel - [PATCH v2 53/70] mm/huge_memory: Use vma

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Date:   Tue, 12 Jan 2021 11:12:23 -0500
From:   "Liam R. Howlett" <Liam.Howlett@...cle.com>
To:     maple-tree@...ts.infradead.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Cc:     Andrew Morton <akpm@...gle.com>, Song Liu <songliubraving@...com>,
        Davidlohr Bueso <dave@...olabs.net>,
        "Paul E . McKenney" <paulmck@...nel.org>,
        Matthew Wilcox <willy@...radead.org>,
        Jerome Glisse <jglisse@...hat.com>,
        David Rientjes <rientjes@...gle.com>,
        Axel Rasmussen <axelrasmussen@...gle.com>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Rik van Riel <riel@...riel.com>,
        Peter Zijlstra <peterz@...radead.org>
Subject: [PATCH v2 53/70] mm/huge_memory: Use vma_next() instead of vma linked list

Signed-off-by: Liam R. Howlett <Liam.Howlett@...cle.com>
---
 mm/huge_memory.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index ec2bb93f74314..4005beb23daf9 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2304,12 +2304,12 @@ void vma_adjust_trans_huge(struct vm_area_struct *vma,
 		split_huge_pmd_address(vma, end, false, NULL);
 
 	/*
-	 * If we're also updating the vma->vm_next->vm_start, if the new
-	 * vm_next->vm_start isn't hpage aligned and it could previously
+	 * If we're also updating the vma_next(vma)->vm_start, if the new
+	 * vma_next()->vm_start isn't hpage aligned and it could previously
 	 * contain an hugepage: check if we need to split an huge pmd.
 	 */
 	if (adjust_next > 0) {
-		struct vm_area_struct *next = vma->vm_next;
+		struct vm_area_struct *next = vma_next(vma->vm_mm, vma);
 		unsigned long nstart = next->vm_start;
 		nstart += adjust_next;
 		if (nstart & ~HPAGE_PMD_MASK &&
-- 
2.28.0