From: kernel test robot <lkp@intel.com>
To: Chao Yu <chao@kernel.org>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
Jaegeuk Kim <jaegeuk@kernel.org>,
Zhiguo Niu <zhiguo.niu@unisoc.com>
Subject: fs/f2fs/cache.c:147:5-24: WARNING: atomic_dec_and_test variation before object free at line 148.
Date: Fri, 06 Nov 2026 13:08:32 +0100 [thread overview]
Message-ID: <202611061201.znvqT1oN-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: f66469d9905b39d2c260a15d7d6db450f4db67c1
commit: 4e80250bcfbc689efc6fd4d1b4e9d581ac3a7ea1 f2fs: cache: implement metadata cache
date: 7 weeks ago
config: loongarch-randconfig-r2105-20261104 (https://download.01.org/0day-ci/archive/20261106/202611061201.znvqT1oN-lkp@intel.com/config)
compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project e2e3d6c39cfebec9eace23629a5a103df2c79ba6)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Fixes: 4e80250bcfbc ("f2fs: cache: implement metadata cache")
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202611061201.znvqT1oN-lkp@intel.com/
cocci warnings: (new ones prefixed by >>)
>> fs/f2fs/cache.c:147:5-24: WARNING: atomic_dec_and_test variation before object free at line 148.
vim +147 fs/f2fs/cache.c
143
144 static bool f2fs_cache_put(struct f2fs_cached_block *entry)
145 {
146 WARN_ON_ONCE(!f2fs_cache_refcount(entry));
> 147 if (atomic_dec_and_test(&entry->refcount)) {
> 148 f2fs_free_cache(entry);
149 return true;
150 }
151 return false;
152 }
153
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2026-11-06 12:08 UTC|newest]
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