From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754785AbdEIQqf (ORCPT ); Tue, 9 May 2017 12:46:35 -0400 Received: from mga01.intel.com ([192.55.52.88]:2047 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754624AbdEIQqd (ORCPT ); Tue, 9 May 2017 12:46:33 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.38,315,1491289200"; d="scan'208";a="1166779940" Date: Wed, 10 May 2017 00:45:31 +0800 From: kbuild test robot To: Matthew Wilcox Cc: kbuild-all@01.org, linux-kernel@vger.kernel.org Subject: fs/fs-writeback.c:1433:20: sparse: context imbalance in 'writeback_single_inode' - different lock contexts for basic block Message-ID: <201705100011.WvXzvwMt%fengguang.wu@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: fengguang.wu@intel.com X-SA-Exim-Scanned: No (on bee); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 2868b2513aa732a99ea4a0a6bf10dc93c1f3dac2 commit: d7b627277b57370223d682cede979a279284b12a radix-tree: Fix __rcu annotations date: 3 months ago reproduce: # apt-get install sparse git checkout d7b627277b57370223d682cede979a279284b12a make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) fs/fs-writeback.c:364:9: sparse: incorrect type in assignment (different address spaces) fs/fs-writeback.c:364:9: expected void **slot fs/fs-writeback.c:364:9: got void [noderef] ** fs/fs-writeback.c:364:9: sparse: incorrect type in assignment (different address spaces) fs/fs-writeback.c:364:9: expected void **slot fs/fs-writeback.c:364:9: got void [noderef] ** fs/fs-writeback.c:366:69: sparse: incorrect type in argument 1 (different address spaces) fs/fs-writeback.c:366:69: expected void [noderef] **slot fs/fs-writeback.c:366:69: got void **slot fs/fs-writeback.c:364:9: sparse: incorrect type in argument 1 (different address spaces) fs/fs-writeback.c:364:9: expected void [noderef] **slot fs/fs-writeback.c:364:9: got void **slot fs/fs-writeback.c:364:9: sparse: incorrect type in assignment (different address spaces) fs/fs-writeback.c:364:9: expected void **slot fs/fs-writeback.c:364:9: got void [noderef] ** fs/fs-writeback.c:374:9: sparse: incorrect type in assignment (different address spaces) fs/fs-writeback.c:374:9: expected void **slot fs/fs-writeback.c:374:9: got void [noderef] ** fs/fs-writeback.c:374:9: sparse: incorrect type in assignment (different address spaces) fs/fs-writeback.c:374:9: expected void **slot fs/fs-writeback.c:374:9: got void [noderef] ** fs/fs-writeback.c:376:69: sparse: incorrect type in argument 1 (different address spaces) fs/fs-writeback.c:376:69: expected void [noderef] **slot fs/fs-writeback.c:376:69: got void **slot fs/fs-writeback.c:374:9: sparse: incorrect type in argument 1 (different address spaces) fs/fs-writeback.c:374:9: expected void [noderef] **slot fs/fs-writeback.c:374:9: got void **slot fs/fs-writeback.c:374:9: sparse: incorrect type in assignment (different address spaces) fs/fs-writeback.c:374:9: expected void **slot fs/fs-writeback.c:374:9: got void [noderef] ** fs/fs-writeback.c:536:15: sparse: context imbalance in 'wbc_attach_and_unlock_inode' - unexpected unlock include/linux/rcupdate.h:927:9: sparse: context imbalance in 'inode_congested' - different lock contexts for basic block >> fs/fs-writeback.c:1433:20: sparse: context imbalance in 'writeback_single_inode' - different lock contexts for basic block fs/fs-writeback.c:1616:9: sparse: context imbalance in 'writeback_sb_inodes' - different lock contexts for basic block fs/fs-writeback.c:2027:9: sparse: context imbalance in 'block_dump___mark_inode_dirty' - different lock contexts for basic block vim +/writeback_single_inode +1433 fs/fs-writeback.c 4f8ad655 Jan Kara 2012-05-03 1417 cd8ed2a4 Yan Hong 2012-10-08 1418 ret = __writeback_single_inode(inode, wbc); ^1da177e Linus Torvalds 2005-04-16 1419 b16b1deb Tejun Heo 2015-06-02 1420 wbc_detach_inode(wbc); aaf25593 Tejun Heo 2016-03-18 1421 aaf25593 Tejun Heo 2016-03-18 1422 wb = inode_to_wb_and_lock_list(inode); 250df6ed Dave Chinner 2011-03-22 1423 spin_lock(&inode->i_lock); 4f8ad655 Jan Kara 2012-05-03 1424 /* 4f8ad655 Jan Kara 2012-05-03 1425 * If inode is clean, remove it from writeback lists. Otherwise don't 4f8ad655 Jan Kara 2012-05-03 1426 * touch it. See comment above for explanation. 4f8ad655 Jan Kara 2012-05-03 1427 */ 0ae45f63 Theodore Ts'o 2015-02-02 1428 if (!(inode->i_state & I_DIRTY_ALL)) c7f54084 Dave Chinner 2015-03-04 1429 inode_io_list_del_locked(inode, wb); 4f8ad655 Jan Kara 2012-05-03 1430 spin_unlock(&wb->list_lock); 1c0eeaf5 Joern Engel 2007-10-16 1431 inode_sync_complete(inode); 4f8ad655 Jan Kara 2012-05-03 1432 out: 4f8ad655 Jan Kara 2012-05-03 @1433 spin_unlock(&inode->i_lock); ^1da177e Linus Torvalds 2005-04-16 1434 return ret; ^1da177e Linus Torvalds 2005-04-16 1435 } ^1da177e Linus Torvalds 2005-04-16 1436 a88a341a Tejun Heo 2015-05-22 1437 static long writeback_chunk_size(struct bdi_writeback *wb, 1a12d8bd Wu Fengguang 2010-08-29 1438 struct wb_writeback_work *work) d46db3d5 Wu Fengguang 2011-05-04 1439 { d46db3d5 Wu Fengguang 2011-05-04 1440 long pages; d46db3d5 Wu Fengguang 2011-05-04 1441 :::::: The code at line 1433 was first introduced by commit :::::: 4f8ad655dbc82cf05d2edc11e66b78a42d38bf93 writeback: Refactor writeback_single_inode() :::::: TO: Jan Kara :::::: CC: Fengguang Wu --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation