tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 44bf136283e567b2b62653be7630e7511da41da2 commit: dcbf87589d90e3bd5a5a4cf832517f22f3c55efb [11560/13289] ext4: factor out ext4_flex_groups_free() config: x86_64-randconfig-a012 (https://download.01.org/0day-ci/archive/20230421/202304210349.DykCi88S-lkp@xxxxxxxxx/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=dcbf87589d90e3bd5a5a4cf832517f22f3c55efb git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout dcbf87589d90e3bd5a5a4cf832517f22f3c55efb # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash fs/ext4/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304210349.DykCi88S-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> fs/ext4/super.c:1262:6: warning: unused variable 'i' [-Wunused-variable] int i, err; ^ fs/ext4/super.c:5104:15: warning: unused variable 'i' [-Wunused-variable] unsigned int i; ^ fs/ext4/super.c:2099:1: warning: unused function 'ctx_set_flags' [-Wunused-function] EXT4_SET_CTX(flags); /* set only */ ^ fs/ext4/super.c:2077:20: note: expanded from macro 'EXT4_SET_CTX' static inline void ctx_set_##name(struct ext4_fs_context *ctx, \ ^ <scratch space>:24:1: note: expanded from here ctx_set_flags ^ 3 warnings generated. vim +/i +1262 fs/ext4/super.c dcbf87589d90e3 Jason Yan 2023-03-23 1256 617ba13b31fbf5 Mingming Cao 2006-10-11 1257 static void ext4_put_super(struct super_block *sb) ac27a0ec112a08 Dave Kleikamp 2006-10-11 1258 { 617ba13b31fbf5 Mingming Cao 2006-10-11 1259 struct ext4_sb_info *sbi = EXT4_SB(sb); 617ba13b31fbf5 Mingming Cao 2006-10-11 1260 struct ext4_super_block *es = sbi->s_es; 97abd7d4b5d9c4 Theodore Ts'o 2017-02-04 1261 int aborted = 0; ef2cabf7c6d838 Hidehiro Kawai 2008-10-27 @1262 int i, err; ac27a0ec112a08 Dave Kleikamp 2006-10-11 1263 5e47868fb94b63 Ritesh Harjani 2020-03-18 1264 /* 5e47868fb94b63 Ritesh Harjani 2020-03-18 1265 * Unregister sysfs before destroying jbd2 journal. 5e47868fb94b63 Ritesh Harjani 2020-03-18 1266 * Since we could still access attr_journal_task attribute via sysfs 5e47868fb94b63 Ritesh Harjani 2020-03-18 1267 * path which could have sbi->s_journal->j_task as NULL b98535d091795a Ye Bin 2022-03-22 1268 * Unregister sysfs before flush sbi->s_error_work. b98535d091795a Ye Bin 2022-03-22 1269 * Since user may read /proc/fs/ext4/xx/mb_groups during umount, If b98535d091795a Ye Bin 2022-03-22 1270 * read metadata verify failed then will queue error work. b98535d091795a Ye Bin 2022-03-22 1271 * flush_stashed_error_work will call start_this_handle may trigger b98535d091795a Ye Bin 2022-03-22 1272 * BUG_ON. 5e47868fb94b63 Ritesh Harjani 2020-03-18 1273 */ 5e47868fb94b63 Ritesh Harjani 2020-03-18 1274 ext4_unregister_sysfs(sb); 5e47868fb94b63 Ritesh Harjani 2020-03-18 1275 4808cb5b98b436 Zhang Yi 2022-04-12 1276 if (___ratelimit(&ext4_mount_msg_ratelimit, "EXT4-fs unmount")) bb0fbc782ee9fa Lukas Czerner 2022-11-08 1277 ext4_msg(sb, KERN_INFO, "unmounting filesystem %pU.", bb0fbc782ee9fa Lukas Czerner 2022-11-08 1278 &sb->s_uuid); 4808cb5b98b436 Zhang Yi 2022-04-12 1279 b98535d091795a Ye Bin 2022-03-22 1280 ext4_unregister_li_request(sb); b98535d091795a Ye Bin 2022-03-22 1281 ext4_quota_off_umount(sb); b98535d091795a Ye Bin 2022-03-22 1282 b98535d091795a Ye Bin 2022-03-22 1283 flush_work(&sbi->s_error_work); b98535d091795a Ye Bin 2022-03-22 1284 destroy_workqueue(sbi->rsv_conversion_wq); b98535d091795a Ye Bin 2022-03-22 1285 ext4_release_orphan_info(sb); b98535d091795a Ye Bin 2022-03-22 1286 0390131ba84fd3 Frank Mayhar 2009-01-07 1287 if (sbi->s_journal) { 97abd7d4b5d9c4 Theodore Ts'o 2017-02-04 1288 aborted = is_journal_aborted(sbi->s_journal); ef2cabf7c6d838 Hidehiro Kawai 2008-10-27 1289 err = jbd2_journal_destroy(sbi->s_journal); 47b4a50bebfd34 Jan Kara 2008-07-11 1290 sbi->s_journal = NULL; 878520ac45f9f6 Theodore Ts'o 2019-11-19 1291 if ((err < 0) && !aborted) { 54d3adbc29f0c7 Theodore Ts'o 2020-03-28 1292 ext4_abort(sb, -err, "Couldn't clean up the journal"); 0390131ba84fd3 Frank Mayhar 2009-01-07 1293 } 878520ac45f9f6 Theodore Ts'o 2019-11-19 1294 } d4edac314e9ad0 Josef Bacik 2009-12-08 1295 d3922a777f9b4c Zheng Liu 2013-07-01 1296 ext4_es_unregister_shrinker(sbi); 292a089d78d3e2 Steven Rostedt (Google 2022-12-20 1297) timer_shutdown_sync(&sbi->s_err_report); d4edac314e9ad0 Josef Bacik 2009-12-08 1298 ext4_release_system_zone(sb); d4edac314e9ad0 Josef Bacik 2009-12-08 1299 ext4_mb_release(sb); d4edac314e9ad0 Josef Bacik 2009-12-08 1300 ext4_ext_release(sb); d4edac314e9ad0 Josef Bacik 2009-12-08 1301 bc98a42c1f7d0f David Howells 2017-07-17 1302 if (!sb_rdonly(sb) && !aborted) { e2b911c53584a9 Darrick J. Wong 2015-10-17 1303 ext4_clear_feature_journal_needs_recovery(sb); 02f310fcf47fa9 Jan Kara 2021-08-16 1304 ext4_clear_feature_orphan_present(sb); ac27a0ec112a08 Dave Kleikamp 2006-10-11 1305 es->s_state = cpu_to_le16(sbi->s_mount_state); ac27a0ec112a08 Dave Kleikamp 2006-10-11 1306 } bc98a42c1f7d0f David Howells 2017-07-17 1307 if (!sb_rdonly(sb)) 4392fbc4bab57d Jan Kara 2020-12-16 1308 ext4_commit_super(sb); a8e25a83245618 Artem Bityutskiy 2012-03-21 1309 6ef684988816fd Jason Yan 2023-03-23 1310 ext4_group_desc_free(sbi); dcbf87589d90e3 Jason Yan 2023-03-23 1311 ext4_flex_groups_free(sbi); 1f79467c8a6be6 Jason Yan 2023-03-23 1312 ext4_percpu_param_destroy(sbi); ac27a0ec112a08 Dave Kleikamp 2006-10-11 1313 #ifdef CONFIG_QUOTA a2d4a646e61954 Jan Kara 2014-09-11 1314 for (i = 0; i < EXT4_MAXQUOTAS; i++) 33458eaba4dfe7 Theodore Ts'o 2018-10-12 1315 kfree(get_qf_name(sb, sbi, i)); ac27a0ec112a08 Dave Kleikamp 2006-10-11 1316 #endif ac27a0ec112a08 Dave Kleikamp 2006-10-11 1317 ac27a0ec112a08 Dave Kleikamp 2006-10-11 1318 /* Debugging code just in case the in-memory inode orphan list ac27a0ec112a08 Dave Kleikamp 2006-10-11 1319 * isn't empty. The on-disk one can be non-empty if we've ac27a0ec112a08 Dave Kleikamp 2006-10-11 1320 * detected an error and taken the fs readonly, but the ac27a0ec112a08 Dave Kleikamp 2006-10-11 1321 * in-memory list had better be clean by this point. */ ac27a0ec112a08 Dave Kleikamp 2006-10-11 1322 if (!list_empty(&sbi->s_orphan)) ac27a0ec112a08 Dave Kleikamp 2006-10-11 1323 dump_orphan_list(sb, sbi); 837c23fbc1b812 Chunguang Xu 2020-11-07 1324 ASSERT(list_empty(&sbi->s_orphan)); ac27a0ec112a08 Dave Kleikamp 2006-10-11 1325 89d96a6f8e6491 Theodore Ts'o 2015-06-20 1326 sync_blockdev(sb->s_bdev); f98393a64ca139 Peter Zijlstra 2007-05-06 1327 invalidate_bdev(sb->s_bdev); ee7ed3aa0f0862 Chunguang Xu 2020-09-24 1328 if (sbi->s_journal_bdev && sbi->s_journal_bdev != sb->s_bdev) { ac27a0ec112a08 Dave Kleikamp 2006-10-11 1329 /* ac27a0ec112a08 Dave Kleikamp 2006-10-11 1330 * Invalidate the journal device's buffers. We don't want them ac27a0ec112a08 Dave Kleikamp 2006-10-11 1331 * floating about in memory - the physical journal device may ac27a0ec112a08 Dave Kleikamp 2006-10-11 1332 * hotswapped, and it breaks the `ro-after' testing code. ac27a0ec112a08 Dave Kleikamp 2006-10-11 1333 */ ee7ed3aa0f0862 Chunguang Xu 2020-09-24 1334 sync_blockdev(sbi->s_journal_bdev); ee7ed3aa0f0862 Chunguang Xu 2020-09-24 1335 invalidate_bdev(sbi->s_journal_bdev); 617ba13b31fbf5 Mingming Cao 2006-10-11 1336 ext4_blkdev_remove(sbi); ac27a0ec112a08 Dave Kleikamp 2006-10-11 1337 } 50c15df69e062b Chengguang Xu 2018-12-04 1338 dec214d00e0d78 Tahsin Erdogan 2017-06-22 1339 ext4_xattr_destroy_cache(sbi->s_ea_inode_cache); dec214d00e0d78 Tahsin Erdogan 2017-06-22 1340 sbi->s_ea_inode_cache = NULL; 50c15df69e062b Chengguang Xu 2018-12-04 1341 47387409ee2e09 Tahsin Erdogan 2017-06-22 1342 ext4_xattr_destroy_cache(sbi->s_ea_block_cache); 47387409ee2e09 Tahsin Erdogan 2017-06-22 1343 sbi->s_ea_block_cache = NULL; 50c15df69e062b Chengguang Xu 2018-12-04 1344 618f003199c618 Pavel Skripkin 2021-04-30 1345 ext4_stop_mmpd(sbi); 618f003199c618 Pavel Skripkin 2021-04-30 1346 9060dd2c5036b1 Eric Sandeen 2016-11-26 1347 brelse(sbi->s_sbh); ac27a0ec112a08 Dave Kleikamp 2006-10-11 1348 sb->s_fs_info = NULL; 3197ebdb130473 Theodore Ts'o 2009-03-31 1349 /* 3197ebdb130473 Theodore Ts'o 2009-03-31 1350 * Now that we are completely done shutting down the 3197ebdb130473 Theodore Ts'o 2009-03-31 1351 * superblock, we need to actually destroy the kobject. 3197ebdb130473 Theodore Ts'o 2009-03-31 1352 */ 3197ebdb130473 Theodore Ts'o 2009-03-31 1353 kobject_put(&sbi->s_kobj); 3197ebdb130473 Theodore Ts'o 2009-03-31 1354 wait_for_completion(&sbi->s_kobj_unregister); 0441984a339897 Darrick J. Wong 2012-04-29 1355 if (sbi->s_chksum_driver) 0441984a339897 Darrick J. Wong 2012-04-29 1356 crypto_free_shash(sbi->s_chksum_driver); 705895b61133ef Pekka Enberg 2009-02-15 1357 kfree(sbi->s_blockgroup_lock); 8012b866085523 Shiyang Ruan 2022-06-03 1358 fs_put_dax(sbi->s_daxdev, NULL); ac4acb1f4b2b6b Eric Biggers 2020-09-16 1359 fscrypt_free_dummy_policy(&sbi->s_dummy_enc_policy); 5298d4bfe80f6a Christoph Hellwig 2022-01-18 1360 #if IS_ENABLED(CONFIG_UNICODE) f8f4acb6cded4e Daniel Rosenberg 2020-10-28 1361 utf8_unload(sb->s_encoding); c83ad55eaa91c8 Gabriel Krisman Bertazi 2019-04-25 1362 #endif ac27a0ec112a08 Dave Kleikamp 2006-10-11 1363 kfree(sbi); ac27a0ec112a08 Dave Kleikamp 2006-10-11 1364 } ac27a0ec112a08 Dave Kleikamp 2006-10-11 1365 :::::: The code at line 1262 was first introduced by commit :::::: ef2cabf7c6d838eb0ee2b4fb8ef84f7c06ce16d9 ext4: fix a bug accessing freed memory in ext4_abort :::::: TO: Hidehiro Kawai <hidehiro.kawai.ez@xxxxxxxxxxx> :::::: CC: Theodore Ts'o <tytso@xxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
