From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EE3733CAE83 for ; Fri, 17 Jul 2026 06:46:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.10 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784270801; cv=none; b=YAUEyqLDIF7T69U77eyjoHFJUr37dLsdM/oMhG8u8SOyknVA8/p/GygKV4WQt4i1nTZ6B2WdP4PaV0B6T1Ba0bOnseEY68d3VAOhIB/OXRplr5irynCRyDQsLpUKzEo1cBLvblUlHEHK5wjHmD/UT05+Ovlj1/wprzmoXm9Al1E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784270801; c=relaxed/simple; bh=alYb/Hq2cOsbvOjyDZorIGI7Bn6mC7kaKeVtUwKVo00=; h=Date:From:To:Cc:Subject:Message-ID; b=dDm6prX6Yno04nkUkWiEekGeU8v+EZEoSAVNa2rCvj2FkTlbOaC7ERJxRF9URL/yaSpDO+duwmiWr7Aw8rMjRAslkr4YJX7lQkazmRgEMgF7goIS2Kt/nOL40xtvmDZSu42LD0TmyMm/oUIxv/KxdMHZeyp/fJcZMwUSYL+m64Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=O/w3K177; arc=none smtp.client-ip=198.175.65.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="O/w3K177" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1784270795; x=1815806795; h=date:from:to:cc:subject:message-id; bh=alYb/Hq2cOsbvOjyDZorIGI7Bn6mC7kaKeVtUwKVo00=; b=O/w3K177Cu5vJhk2+8vV99/Gzx5Xh/9uhZZLOmsuRjfPmU8RZq2drkq7 p+g/+IZ5VArT3E6S3OY92ViCDpexYcidwlBH64zVmdlHuDkExvmqxj0aK 0IdZONo9lCuPtzPEG6qrpwNhTEVg4DzyxW8EETbfGTYt3Gy4vh8WdZ0dj nBPzlher8R7/qvr9yM9SBWl4CIfTErVgmG5ZONh9PWNMj72iAX/7QF5lc 7l6pMm4Qqop4uFB0OmrrhsXNpqrmWiA5YpebB2wTiohSPgQHzwpqKNZEz HVDLaEslkzosgHkubM66zpiE0zO34m4uWVn+UbJ8bKgfxsHhbbBfHfupW g==; X-CSE-ConnectionGUID: aX7YAld+RVeDbHFo/K5OEQ== X-CSE-MsgGUID: FZ0gRJnsRASS23UUNRxNDA== X-IronPort-AV: E=McAfee;i="6800,10657,11848"; a="102364174" X-IronPort-AV: E=Sophos;i="6.25,168,1779174000"; d="scan'208";a="102364174" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Jul 2026 23:46:31 -0700 X-CSE-ConnectionGUID: v1fkNx6vTkGLBpVFTDedXA== X-CSE-MsgGUID: okKIVFpiSs6GmGPgHqgm4w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,168,1779174000"; d="scan'208";a="254061725" Received: from lkp-server02.sh.intel.com (HELO ea128546eb3d) ([10.239.97.151]) by fmviesa008.fm.intel.com with ESMTP; 16 Jul 2026 23:46:27 -0700 Received: from kbuild by ea128546eb3d with local (Exim 4.98.2) (envelope-from ) id 1wkcL3-00000000SUy-0Xeg; Fri, 17 Jul 2026 06:46:25 +0000 Date: Fri, 17 Jul 2026 14:45:39 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com, Julia Lawall , Elena Reshetova Subject: fs/inode.c:1924:45-46: WARNING: atomic_add_unless Message-ID: <202607171450.wJMfBRgh-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev CC: linux-kernel@vger.kernel.org TO: Josef Bacik CC: Christian Brauner CC: Mateusz Guzik tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: fce2dfa773ced15f27dd27cd0b482a7473cdcf2a commit: 9e70e985bdc2c6fe7a160e4d59ddd7c0a39bc077 fs: rework iput logic date: 11 months ago :::::: branch date: 7 hours ago :::::: commit date: 11 months ago config: powerpc64-randconfig-r064-20260716 (https://download.01.org/0day-ci/archive/20260717/202607171450.wJMfBRgh-lkp@intel.com/config) compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project b3e6e6dabdc02153552a64fc74ff5c7532447eed) 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: 9e70e985bdc2 ("fs: rework iput logic") | Reported-by: kernel test robot | Reported-by: Julia Lawall | Closes: https://lore.kernel.org/r/202607171450.wJMfBRgh-lkp@intel.com/ cocci warnings: (new ones prefixed by >>) >> fs/inode.c:1924:45-46: WARNING: atomic_add_unless vim +1924 fs/inode.c ^1da177e4c3f41 Linus Torvalds 2005-04-16 1899 ^1da177e4c3f41 Linus Torvalds 2005-04-16 1900 /** ^1da177e4c3f41 Linus Torvalds 2005-04-16 1901 * iput - put an inode ^1da177e4c3f41 Linus Torvalds 2005-04-16 1902 * @inode: inode to put ^1da177e4c3f41 Linus Torvalds 2005-04-16 1903 * ^1da177e4c3f41 Linus Torvalds 2005-04-16 1904 * Puts an inode, dropping its usage count. If the inode use count hits ^1da177e4c3f41 Linus Torvalds 2005-04-16 1905 * zero, the inode is then freed and may also be destroyed. ^1da177e4c3f41 Linus Torvalds 2005-04-16 1906 * ^1da177e4c3f41 Linus Torvalds 2005-04-16 1907 * Consequently, iput() can sleep. ^1da177e4c3f41 Linus Torvalds 2005-04-16 1908 */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 1909 void iput(struct inode *inode) ^1da177e4c3f41 Linus Torvalds 2005-04-16 1910 { 9e70e985bdc2c6 Josef Bacik 2025-08-26 1911 if (unlikely(!inode)) 0ae45f63d4ef8d Theodore Ts'o 2015-02-02 1912 return; 9e70e985bdc2c6 Josef Bacik 2025-08-26 1913 0ae45f63d4ef8d Theodore Ts'o 2015-02-02 1914 retry: 9e70e985bdc2c6 Josef Bacik 2025-08-26 1915 lockdep_assert_not_held(&inode->i_lock); 9e70e985bdc2c6 Josef Bacik 2025-08-26 1916 VFS_BUG_ON_INODE(inode->i_state & I_CLEAR, inode); 9e70e985bdc2c6 Josef Bacik 2025-08-26 1917 /* 9e70e985bdc2c6 Josef Bacik 2025-08-26 1918 * Note this assert is technically racy as if the count is bogusly 9e70e985bdc2c6 Josef Bacik 2025-08-26 1919 * equal to one, then two CPUs racing to further drop it can both 9e70e985bdc2c6 Josef Bacik 2025-08-26 1920 * conclude it's fine. 9e70e985bdc2c6 Josef Bacik 2025-08-26 1921 */ 9e70e985bdc2c6 Josef Bacik 2025-08-26 1922 VFS_BUG_ON_INODE(atomic_read(&inode->i_count) < 1, inode); 9e70e985bdc2c6 Josef Bacik 2025-08-26 1923 9e70e985bdc2c6 Josef Bacik 2025-08-26 @1924 if (atomic_add_unless(&inode->i_count, -1, 1)) 9e70e985bdc2c6 Josef Bacik 2025-08-26 1925 return; 9e70e985bdc2c6 Josef Bacik 2025-08-26 1926 9e70e985bdc2c6 Josef Bacik 2025-08-26 1927 if ((inode->i_state & I_DIRTY_TIME) && inode->i_nlink) { 0ae45f63d4ef8d Theodore Ts'o 2015-02-02 1928 trace_writeback_lazytime_iput(inode); 0ae45f63d4ef8d Theodore Ts'o 2015-02-02 1929 mark_inode_dirty_sync(inode); 0ae45f63d4ef8d Theodore Ts'o 2015-02-02 1930 goto retry; 0ae45f63d4ef8d Theodore Ts'o 2015-02-02 1931 } 9e70e985bdc2c6 Josef Bacik 2025-08-26 1932 9e70e985bdc2c6 Josef Bacik 2025-08-26 1933 spin_lock(&inode->i_lock); 9e70e985bdc2c6 Josef Bacik 2025-08-26 1934 if (unlikely((inode->i_state & I_DIRTY_TIME) && inode->i_nlink)) { 9e70e985bdc2c6 Josef Bacik 2025-08-26 1935 spin_unlock(&inode->i_lock); 9e70e985bdc2c6 Josef Bacik 2025-08-26 1936 goto retry; ^1da177e4c3f41 Linus Torvalds 2005-04-16 1937 } 9e70e985bdc2c6 Josef Bacik 2025-08-26 1938 9e70e985bdc2c6 Josef Bacik 2025-08-26 1939 if (!atomic_dec_and_test(&inode->i_count)) { 9e70e985bdc2c6 Josef Bacik 2025-08-26 1940 spin_unlock(&inode->i_lock); 9e70e985bdc2c6 Josef Bacik 2025-08-26 1941 return; 9e70e985bdc2c6 Josef Bacik 2025-08-26 1942 } 9e70e985bdc2c6 Josef Bacik 2025-08-26 1943 9e70e985bdc2c6 Josef Bacik 2025-08-26 1944 /* 9e70e985bdc2c6 Josef Bacik 2025-08-26 1945 * iput_final() drops ->i_lock, we can't assert on it as the inode may 9e70e985bdc2c6 Josef Bacik 2025-08-26 1946 * be deallocated by the time the call returns. 9e70e985bdc2c6 Josef Bacik 2025-08-26 1947 */ 9e70e985bdc2c6 Josef Bacik 2025-08-26 1948 iput_final(inode); ^1da177e4c3f41 Linus Torvalds 2005-04-16 1949 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 1950 EXPORT_SYMBOL(iput); ^1da177e4c3f41 Linus Torvalds 2005-04-16 1951 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki