Hi Vasily, url: https://github.com/0day-ci/linux/commits/Vasily-Averin/nfs-local_lock-handle-async-processing-of-F_SETLK-with-FL_SLEEP/20211227-184705 base: git://git.linux-nfs.org/projects/trondmy/linux-nfs.git linux-next config: i386-randconfig-m021-20211227 (https://download.01.org/0day-ci/archive/20211228/202112281211.SsWl4cfI-lkp@xxxxxxxxx/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> smatch warnings: fs/nfs/file.c:772 do_setlk() warn: should this be a bitwise op? vim +772 fs/nfs/file.c 5eebde23223aeb Suresh Jayaraman 2010-09-23 752 static int 5eebde23223aeb Suresh Jayaraman 2010-09-23 753 do_setlk(struct file *filp, int cmd, struct file_lock *fl, int is_local) ^1da177e4c3f41 Linus Torvalds 2005-04-16 754 { ^1da177e4c3f41 Linus Torvalds 2005-04-16 755 struct inode *inode = filp->f_mapping->host; ^1da177e4c3f41 Linus Torvalds 2005-04-16 756 int status; ^1da177e4c3f41 Linus Torvalds 2005-04-16 757 ^1da177e4c3f41 Linus Torvalds 2005-04-16 758 /* ^1da177e4c3f41 Linus Torvalds 2005-04-16 759 * Flush all pending writes before doing anything ^1da177e4c3f41 Linus Torvalds 2005-04-16 760 * with locks.. ^1da177e4c3f41 Linus Torvalds 2005-04-16 761 */ 29884df0d89c1d Trond Myklebust 2005-12-13 762 status = nfs_sync_mapping(filp->f_mapping); 29884df0d89c1d Trond Myklebust 2005-12-13 763 if (status != 0) ^1da177e4c3f41 Linus Torvalds 2005-04-16 764 goto out; ^1da177e4c3f41 Linus Torvalds 2005-04-16 765 5eebde23223aeb Suresh Jayaraman 2010-09-23 766 /* 5eebde23223aeb Suresh Jayaraman 2010-09-23 767 * Use local locking if mounted with "-onolock" or with appropriate 5eebde23223aeb Suresh Jayaraman 2010-09-23 768 * "-olocal_lock=" 5eebde23223aeb Suresh Jayaraman 2010-09-23 769 */ 5eebde23223aeb Suresh Jayaraman 2010-09-23 770 if (!is_local) ^1da177e4c3f41 Linus Torvalds 2005-04-16 771 status = NFS_PROTO(inode)->lock(filp, cmd, fl); 00e7edbaaa914f Vasily Averin 2021-12-27 @772 else if ((fl->fl_flags && FL_SLEEP) && IS_SETLK(cmd)) ^ && vs & 00e7edbaaa914f Vasily Averin 2021-12-27 773 status = posix_lock_file(filp, fl, NULL); c4d7c402b788b7 Trond Myklebust 2008-04-01 774 else 75575ddf29cbbf Jeff Layton 2016-09-17 775 status = locks_lock_file_wait(filp, fl); 00e7edbaaa914f Vasily Averin 2021-12-27 776 if (status) ^1da177e4c3f41 Linus Torvalds 2005-04-16 777 goto out; 6b96724e507fec Ricardo Labiaga 2010-10-12 778 ^1da177e4c3f41 Linus Torvalds 2005-04-16 779 /* 779eafab06036f NeilBrown 2017-08-18 780 * Invalidate cache to prevent missing any changes. If 779eafab06036f NeilBrown 2017-08-18 781 * the file is mapped, clear the page cache as well so 779eafab06036f NeilBrown 2017-08-18 782 * those mappings will be loaded. 6b96724e507fec Ricardo Labiaga 2010-10-12 783 * ^1da177e4c3f41 Linus Torvalds 2005-04-16 784 * This makes locking act as a cache coherency point. ^1da177e4c3f41 Linus Torvalds 2005-04-16 785 */ 29884df0d89c1d Trond Myklebust 2005-12-13 786 nfs_sync_mapping(filp->f_mapping); 779eafab06036f NeilBrown 2017-08-18 787 if (!NFS_PROTO(inode)->have_delegation(inode, FMODE_READ)) { 442ce0499c0535 NeilBrown 2017-07-24 788 nfs_zap_caches(inode); 779eafab06036f NeilBrown 2017-08-18 789 if (mapping_mapped(filp->f_mapping)) 779eafab06036f NeilBrown 2017-08-18 790 nfs_revalidate_mapping(inode, filp->f_mapping); 779eafab06036f NeilBrown 2017-08-18 791 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 792 out: ^1da177e4c3f41 Linus Torvalds 2005-04-16 793 return status; ^1da177e4c3f41 Linus Torvalds 2005-04-16 794 } --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
