From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Mon, 4 Jan 2021 19:45:37 +0000 (-0500)
Subject: fs/exec: Use vma_next() instead of linked list
X-Git-Tag: howlett/maple_spf/20210128~28
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=14a5f47ee94e1f4dcd6fc662215573afd245739b;p=users%2Fjedix%2Flinux-maple.git

fs/exec: Use vma_next() instead of linked list

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---

diff --git a/fs/exec.c b/fs/exec.c
index 1dd658ac3390..95b317e0ceca 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -713,7 +713,7 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
 		 * when the old and new regions overlap clear from new_end.
 		 */
 		free_pgd_range(&tlb, new_end, old_end, new_end,
-			vma->vm_next ? vma->vm_next->vm_start : USER_PGTABLES_CEILING);
+			vma_next(mm, vma) ? vma_next(mm, vma)->vm_start : USER_PGTABLES_CEILING);
 	} else {
 		/*
 		 * otherwise, clean from old_start; this is done to not touch
@@ -722,7 +722,7 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
 		 * for the others its just a little faster.
 		 */
 		free_pgd_range(&tlb, old_start, old_end, new_end,
-			vma->vm_next ? vma->vm_next->vm_start : USER_PGTABLES_CEILING);
+			vma_next(mm, vma) ? vma_next(mm, vma)->vm_start : USER_PGTABLES_CEILING);
 	}
 	tlb_finish_mmu(&tlb, old_start, old_end);