[chao:feature/cache 2/13] fs/f2fs/cache.c:167:5-24: WARNING: atomic_dec_and_test variation before object free at line 168.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git feature/cache
head:   f5af6f6f61922c3233196de6f4ff119760b86258
commit: b803186a2293df7ecc9c0e16e51dc01c2c4f8730 [2/13] f2fs: cache: implement metadata cache
config: csky-randconfig-r064-20260821 (https://download.01.org/0day-ci/archive/20260821/[email protected]/config)
compiler: csky-linux-gcc (GCC) 14.3.0

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
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

cocci warnings: (new ones prefixed by >>)
>> fs/f2fs/cache.c:167:5-24: WARNING: atomic_dec_and_test variation before object free at line 168.

vim +167 fs/f2fs/cache.c

   163	
   164	static bool f2fs_cache_put(struct f2fs_cached_block *entry)
   165	{
   166		WARN_ON_ONCE(!f2fs_cache_refcount(entry));
 > 167		if (atomic_dec_and_test(&entry->refcount)) {
 > 168			f2fs_free_cache(entry);
   169			return true;
   170		}
   171		return false;
   172	}
   173	

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