From: Roman Smirnov <r.smirnov@omp.ru>
To: Jaegeuk Kim <jaegeuk@kernel.org>, Chao Yu <chao@kernel.org>
Cc: Sergey Shtylyov <s.shtylyov@omp.ru>,
lvc-project@linuxtesting.org, linux-kernel@vger.kernel.org,
Karina Yankevich <k.yankevich@omp.ru>,
linux-f2fs-devel@lists.sourceforge.net,
Roman Smirnov <r.smirnov@omp.ru>
Subject: [f2fs-dev] [PATCH] f2fs: Cast expression type to unsigned long in __count_extent_cache()
Date: Tue, 5 Mar 2024 11:09:43 +0300 [thread overview]
Message-ID: <20240305080943.6922-1-r.smirnov@omp.ru> (raw)
Cast expression type to unsigned long in __count_extent_cache()
to prevent integer overflow.
Found by Linux Verification Center (linuxtesting.org) with Svace.
Signed-off-by: Roman Smirnov <r.smirnov@omp.ru>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
---
fs/f2fs/shrinker.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/f2fs/shrinker.c b/fs/f2fs/shrinker.c
index 83d6fb97dcae..bb86a06c5d5e 100644
--- a/fs/f2fs/shrinker.c
+++ b/fs/f2fs/shrinker.c
@@ -33,7 +33,7 @@ static unsigned long __count_extent_cache(struct f2fs_sb_info *sbi,
{
struct extent_tree_info *eti = &sbi->extent_tree[type];
- return atomic_read(&eti->total_zombie_tree) +
+ return (unsigned long)atomic_read(&eti->total_zombie_tree) +
atomic_read(&eti->total_ext_node);
}
--
2.34.1
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next reply other threads:[~2024-03-05 8:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-05 8:09 Roman Smirnov [this message]
2024-03-06 1:48 ` [f2fs-dev] [PATCH] f2fs: Cast expression type to unsigned long in __count_extent_cache() Chao Yu
2024-03-06 17:50 ` patchwork-bot+f2fs
2024-03-10 17:46 ` David Laight
2024-03-11 20:37 ` Jaegeuk Kim
2024-03-11 21:19 ` David Laight
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