From: Andrew Morton <akpm@linux-foundation.org>
Date: Sat, 18 Jun 2022 18:58:03 +0000 (-0700)
Subject: mm-madvise-minor-cleanup-for-swapin_walk_pmd_entry-fix
X-Git-Tag: maple_v12_fixes~51
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=d33c21d69ed9dd536ebd90e24974f71c0b6c867d;p=users%2Fjedix%2Flinux-maple.git

mm-madvise-minor-cleanup-for-swapin_walk_pmd_entry-fix

reduce scope of `ptep'

Cc: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/madvise.c b/mm/madvise.c
index cf49e123991c..851fa4e134bc 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -195,7 +195,6 @@ success:
 static int swapin_walk_pmd_entry(pmd_t *pmd, unsigned long start,
 	unsigned long end, struct mm_walk *walk)
 {
-	pte_t *ptep;
 	struct vm_area_struct *vma = walk->private;
 	unsigned long index;
 	struct swap_iocb *splug = NULL;
@@ -208,6 +207,7 @@ static int swapin_walk_pmd_entry(pmd_t *pmd, unsigned long start,
 		swp_entry_t entry;
 		struct page *page;
 		spinlock_t *ptl;
+		pte_t *ptep;
 
 		ptep = pte_offset_map_lock(vma->vm_mm, pmd, index, &ptl);
 		pte = *ptep;