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Message-Id: <c1dbbc9022c9d8d4736d1751678076a2afa1366f.1724226076.git.zhengqi.arch@bytedance.com>
Date: Wed, 21 Aug 2024 16:18:47 +0800
From: Qi Zheng <zhengqi.arch@...edance.com>
To: david@...hat.com,
hughd@...gle.com,
willy@...radead.org,
muchun.song@...ux.dev,
vbabka@...nel.org,
akpm@...ux-foundation.org,
rppt@...nel.org,
vishal.moola@...il.com,
peterx@...hat.com,
ryan.roberts@....com
Cc: linux-kernel@...r.kernel.org,
linux-mm@...ck.org,
linux-arm-kernel@...ts.infradead.org,
linuxppc-dev@...ts.ozlabs.org,
Qi Zheng <zhengqi.arch@...edance.com>
Subject: [PATCH 04/14] mm: filemap: filemap_fault_recheck_pte_none() use pte_offset_map_readonly_nolock()
In filemap_fault_recheck_pte_none(), we just do pte_none() check, so
convert it to using pte_offset_map_readonly_nolock().
Signed-off-by: Qi Zheng <zhengqi.arch@...edance.com>
---
mm/filemap.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/filemap.c b/mm/filemap.c
index d87c858465962..491eb92d6db1f 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -3228,8 +3228,8 @@ static vm_fault_t filemap_fault_recheck_pte_none(struct vm_fault *vmf)
if (!(vmf->flags & FAULT_FLAG_ORIG_PTE_VALID))
return 0;
- ptep = pte_offset_map_nolock(vma->vm_mm, vmf->pmd, vmf->address,
- &vmf->ptl);
+ ptep = pte_offset_map_readonly_nolock(vma->vm_mm, vmf->pmd,
+ vmf->address, &vmf->ptl);
if (unlikely(!ptep))
return VM_FAULT_NOPAGE;
--
2.20.1
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