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From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org
Cc: Jinliang Zheng <alexjlzheng@gmail.com>,
	Jinliang Zheng <alexjlzheng@tencent.com>,
	"Liam R. Howlett" <Liam.Howlett@oracle.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH 6.12.y 1/3] mm: fix outdated incorrect code comments for handle_mm_fault()
Date: Sat, 14 Nov 2026 00:14:31 -0500	[thread overview]
Message-ID: <20261114051414.3056118-1-sashal@kernel.org> (raw)
In-Reply-To: <20261109200745-failed-6.12-f681d4580d5c@kernel.org>

From: Jinliang Zheng <alexjlzheng@gmail.com>

[ Upstream commit 8e6173ccf7b87c1f855e1ad3d94fd50c51d1f46b ]

[akpm@linux-foundation.org: s/mmap_Lock/mmap_lock/, per Liam]
Link: https://lkml.kernel.org/r/20241213031820.778342-1-alexjlzheng@tencent.com
Signed-off-by: Jinliang Zheng <alexjlzheng@tencent.com>
Cc: "Liam R. Howlett" <Liam.Howlett@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Stable-dep-of: f681d4580d5c ("mm: fix address wraparound when scanning large folio PTEs")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 mm/memory.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mm/memory.c b/mm/memory.c
index 38019497d8d4f..4e6c893b18b38 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -6071,7 +6071,8 @@ static vm_fault_t sanitize_fault_flags(struct vm_area_struct *vma,
 }
 
 /*
- * By the time we get here, we already hold the mm semaphore
+ * By the time we get here, we already hold either the VMA lock or the
+ * mmap_lock (FAULT_FLAG_VMA_LOCK tells you which).
  *
  * The mmap_lock may have been released depending on flags and our
  * return value.  See filemap_fault() and __folio_lock_or_retry().
-- 
2.53.0


  reply	other threads:[~2026-11-14  5:14 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-10  1:07 FAILED: patch "[PATCH] mm: fix address wraparound when scanning large folio PTEs" failed to apply to 6.12-stable tree Sasha Levin
2026-11-14  5:14 ` Sasha Levin [this message]
2026-11-14  5:14   ` [PATCH 6.12.y 2/3] mm/memory: update stale locking comments for fault handlers Sasha Levin
2026-11-14  5:14   ` [PATCH 6.12.y 3/3] mm: fix address wraparound when scanning large folio PTEs Sasha Levin

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