tree: https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git repair-metadata-atomically head: d334005df02786c9f288f2c7060603e9680946b5 commit: 9d81ac3b1eeab4e8fc2561d27fdff1f76f223b30 [126/229] xfs: implement live quotacheck as part of quota repair compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce (this is a W=1 build): git checkout 9d81ac3b1eeab4e8fc2561d27fdff1f76f223b30 # save the attached .config to linux build tree make W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; cppcheck warnings: (new ones prefixed by >>) if (error) { ^ fs/xfs/xfs_qm.c:1389:6: note: First condition if (error) ^ fs/xfs/xfs_qm.c:1399:6: note: Second condition if (error) { ^ fs/xfs/xfs_buf.h:278:38: warning: Clarify calculation precedence for '&' and '?'. [clarifyCalculation] bool wait = bp->b_flags & XBF_ASYNC ? false : true; ^ fs/xfs/xfs_qm.c:933:34: warning: Clarify calculation precedence for '&' and '?'. [clarifyCalculation] type = flags & XFS_QMOPT_UQUOTA ? XFS_DQ_USER : ^ fs/xfs/xfs_qm.c:934:29: warning: Clarify calculation precedence for '&' and '?'. [clarifyCalculation] (flags & XFS_QMOPT_PQUOTA ? XFS_DQ_PROJ : XFS_DQ_GROUP); ^ fs/xfs/xfs_qm.c:1623:6: warning: Either the condition 'qi!=NULL' is redundant or there is possible null pointer dereference: qi. [nullPointerRedundantCheck] if (qi->qi_uquotaip) { ^ fs/xfs/xfs_qm.c:736:2: note: Assuming that condition 'qi!=NULL' is not redundant ASSERT(qi != NULL); ^ fs/xfs/xfs_qm.c:735:9: note: Assignment 'qi=mp->m_quotainfo', assigned value is 0 qi = mp->m_quotainfo; ^ fs/xfs/xfs_qm.c:740:27: note: Calling function 'xfs_qm_destroy_quotainos', 1st argument 'qi' value is 0 xfs_qm_destroy_quotainos(qi); ^ fs/xfs/xfs_qm.c:1623:6: note: Null pointer dereference if (qi->qi_uquotaip) { ^ fs/xfs/xfs_qm.c:1623:6: warning: Null pointer dereference: qi [ctunullpointer] if (qi->qi_uquotaip) { ^ fs/xfs/xfs_qm.c:736:2: note: Assuming that condition 'qi!=NULL' is not redundant ^ fs/xfs/xfs_qm.c:735:9: note: Assignment 'qi=mp->m_quotainfo', assigned value is 0 ^ fs/xfs/xfs_qm.c:740:26: note: Calling function xfs_qm_destroy_quotainos, 1st argument is null xfs_qm_destroy_quotainos(qi); ^ fs/xfs/xfs_qm.c:1623:6: note: Dereferencing argument qi that is null if (qi->qi_uquotaip) { ^ # https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git/comm... git remote add djwong-xfs https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git git remote update djwong-xfs git checkout 9d81ac3b1eeab4e8fc2561d27fdff1f76f223b30 vim +1399 fs/xfs/xfs_qm.c 9d81ac3b1eeab4 fs/xfs/xfs_qm.c Darrick J. Wong 2020-02-19 1336 ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1337 /* ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1338 * Walk thru all the filesystem inodes and construct a consistent view ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1339 * of the disk quota world. If the quotacheck fails, disable quotas. ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1340 */ eb866bbf095ec6 fs/xfs/xfs_qm.c Jie Liu 2014-07-24 1341 STATIC int ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1342 xfs_qm_quotacheck( 9d81ac3b1eeab4 fs/xfs/xfs_qm.c Darrick J. Wong 2020-02-19 1343 struct xfs_mount *mp) ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1344 { 9d81ac3b1eeab4 fs/xfs/xfs_qm.c Darrick J. Wong 2020-02-19 1345 int error; 43ff2122e6492b fs/xfs/xfs_qm.c Christoph Hellwig 2012-04-23 1346 LIST_HEAD (buffer_list); 9d81ac3b1eeab4 fs/xfs/xfs_qm.c Darrick J. Wong 2020-02-19 1347 uint flags; 113a56835d938d fs/xfs/xfs_qm.c Chandra Seetharaman 2013-06-27 1348 struct xfs_inode *uip = mp->m_quotainfo->qi_uquotaip; 113a56835d938d fs/xfs/xfs_qm.c Chandra Seetharaman 2013-06-27 1349 struct xfs_inode *gip = mp->m_quotainfo->qi_gquotaip; 92f8ff73f18672 fs/xfs/xfs_qm.c Chandra Seetharaman 2013-07-11 1350 struct xfs_inode *pip = mp->m_quotainfo->qi_pquotaip; ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1351 ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1352 flags = 0; ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1353 92f8ff73f18672 fs/xfs/xfs_qm.c Chandra Seetharaman 2013-07-11 1354 ASSERT(uip || gip || pip); ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1355 ASSERT(XFS_IS_QUOTA_RUNNING(mp)); ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1356 0b932cccbdc09a fs/xfs/quota/xfs_qm.c Dave Chinner 2011-03-07 1357 xfs_notice(mp, "Quotacheck needed: Please wait."); ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1358 ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1359 /* c8ad20ffeb592d fs/xfs/quota/xfs_qm.c Nathan Scott 2005-06-21 1360 * First we go thru all the dquots on disk, USR and GRP/PRJ, and reset ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1361 * their counters to zero. We need a clean slate. ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1362 * We don't log our changes till later. ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1363 */ 8a7b8a89a3ae5b fs/xfs/quota/xfs_qm.c Christoph Hellwig 2010-04-20 1364 if (uip) { 28b9060bd80851 fs/xfs/xfs_qm.c Darrick J. Wong 2018-05-04 1365 error = xfs_qm_reset_dqcounts_buf(mp, uip, XFS_QMOPT_UQUOTA, 43ff2122e6492b fs/xfs/xfs_qm.c Christoph Hellwig 2012-04-23 1366 &buffer_list); 8a7b8a89a3ae5b fs/xfs/quota/xfs_qm.c Christoph Hellwig 2010-04-20 1367 if (error) ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1368 goto error_return; ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1369 flags |= XFS_UQUOTA_CHKD; ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1370 } ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1371 8a7b8a89a3ae5b fs/xfs/quota/xfs_qm.c Christoph Hellwig 2010-04-20 1372 if (gip) { 28b9060bd80851 fs/xfs/xfs_qm.c Darrick J. Wong 2018-05-04 1373 error = xfs_qm_reset_dqcounts_buf(mp, gip, XFS_QMOPT_GQUOTA, 43ff2122e6492b fs/xfs/xfs_qm.c Christoph Hellwig 2012-04-23 1374 &buffer_list); 8a7b8a89a3ae5b fs/xfs/quota/xfs_qm.c Christoph Hellwig 2010-04-20 1375 if (error) ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1376 goto error_return; 92f8ff73f18672 fs/xfs/xfs_qm.c Chandra Seetharaman 2013-07-11 1377 flags |= XFS_GQUOTA_CHKD; 92f8ff73f18672 fs/xfs/xfs_qm.c Chandra Seetharaman 2013-07-11 1378 } 92f8ff73f18672 fs/xfs/xfs_qm.c Chandra Seetharaman 2013-07-11 1379 92f8ff73f18672 fs/xfs/xfs_qm.c Chandra Seetharaman 2013-07-11 1380 if (pip) { 28b9060bd80851 fs/xfs/xfs_qm.c Darrick J. Wong 2018-05-04 1381 error = xfs_qm_reset_dqcounts_buf(mp, pip, XFS_QMOPT_PQUOTA, 92f8ff73f18672 fs/xfs/xfs_qm.c Chandra Seetharaman 2013-07-11 1382 &buffer_list); 92f8ff73f18672 fs/xfs/xfs_qm.c Chandra Seetharaman 2013-07-11 1383 if (error) 92f8ff73f18672 fs/xfs/xfs_qm.c Chandra Seetharaman 2013-07-11 1384 goto error_return; 92f8ff73f18672 fs/xfs/xfs_qm.c Chandra Seetharaman 2013-07-11 1385 flags |= XFS_PQUOTA_CHKD; ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1386 } ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1387 9d81ac3b1eeab4 fs/xfs/xfs_qm.c Darrick J. Wong 2020-02-19 1388 error = xfs_qm_quotacheck_walk_and_flush(mp, false, &buffer_list); 7dce11dbac54fc fs/xfs/quota/xfs_qm.c Christoph Hellwig 2010-06-23 1389 if (error) ebd126a651f83c fs/xfs/xfs_qm.c Darrick J. Wong 2019-07-02 1390 goto error_return; ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1391 ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1392 /* ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1393 * We can get this error if we couldn't do a dquot allocation inside ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1394 * xfs_qm_dqusage_adjust (via bulkstat). We don't care about the ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1395 * dirty dquots that might be cached, we just want to get rid of them ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1396 * and turn quotaoff. The dquots won't be attached to any of the inodes ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1397 * at this point (because we intentionally didn't in dqget_noattach). ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1398 */ ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 @1399 if (error) { 8112e9dc6d1494 fs/xfs/quota/xfs_qm.c Christoph Hellwig 2010-04-20 1400 xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1401 goto error_return; ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1402 } ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1403 ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1404 /* ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1405 * If one type of quotas is off, then it will lose its ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1406 * quotachecked status, since we won't be doing accounting for ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1407 * that type anymore. ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1408 */ 4177af3a8a6f11 fs/xfs/xfs_qm.c Chandra Seetharaman 2012-01-23 1409 mp->m_qflags &= ~XFS_ALL_QUOTA_CHKD; ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1410 mp->m_qflags |= flags; ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1411 ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1412 error_return: 20e8a063786050 fs/xfs/xfs_qm.c Brian Foster 2017-04-21 1413 xfs_buf_delwri_cancel(&buffer_list); 43ff2122e6492b fs/xfs/xfs_qm.c Christoph Hellwig 2012-04-23 1414 ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1415 if (error) { 0b932cccbdc09a fs/xfs/quota/xfs_qm.c Dave Chinner 2011-03-07 1416 xfs_warn(mp, 0b932cccbdc09a fs/xfs/quota/xfs_qm.c Dave Chinner 2011-03-07 1417 "Quotacheck: Unsuccessful (Error %d): Disabling quotas.", 0b932cccbdc09a fs/xfs/quota/xfs_qm.c Dave Chinner 2011-03-07 1418 error); ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1419 /* ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1420 * We must turn off quotas. ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1421 */ ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1422 ASSERT(mp->m_quotainfo != NULL); ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1423 xfs_qm_destroy_quotainfo(mp); 31d5577b35d839 fs/xfs/quota/xfs_qm.c David Chinner 2008-04-10 1424 if (xfs_mount_reset_sbqflags(mp)) { 0b932cccbdc09a fs/xfs/quota/xfs_qm.c Dave Chinner 2011-03-07 1425 xfs_warn(mp, 0b932cccbdc09a fs/xfs/quota/xfs_qm.c Dave Chinner 2011-03-07 1426 "Quotacheck: Failed to reset quota flags."); ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1427 } 0b932cccbdc09a fs/xfs/quota/xfs_qm.c Dave Chinner 2011-03-07 1428 } else 0b932cccbdc09a fs/xfs/quota/xfs_qm.c Dave Chinner 2011-03-07 1429 xfs_notice(mp, "Quotacheck: Done."); d99831ff393ff2 fs/xfs/xfs_qm.c Eric Sandeen 2014-06-22 1430 return error; ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1431 } ^1da177e4c3f41 fs/xfs/quota/xfs_qm.c Linus Torvalds 2005-04-16 1432 :::::: The code at line 1399 was first introduced by commit :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2 :::::: TO: Linus Torvalds <torvalds(a)ppc970.osdl.org&gt; :::::: CC: Linus Torvalds <torvalds(a)ppc970.osdl.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org _______________________________________________ kbuild mailing list -- kbuild(a)lists.01.org To unsubscribe send an email to kbuild-leave(a)lists.01.org