Hi Dan, [auto build test ERROR on dm/for-next] [also build test ERROR on v4.13-rc3 next-20170802] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Dan-Williams/dm-allow-device-mapper-to-operate-without-dax-support/20170802-155255 base: https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next config: s390-defconfig (attached as .config) compiler: s390x-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=s390 All errors (new ones prefixed by >>): drivers/md/dm.o: In function `cleanup_mapped_device': >> drivers/md/dm.c:1684: undefined reference to `kill_dax' >> drivers/md/dm.c:1685: undefined reference to `put_dax' drivers/md/dm.o: In function `close_table_device': drivers/md/dm.c:651: undefined reference to `put_dax' drivers/md/dm.o: In function `open_table_device': >> drivers/md/dm.c:637: undefined reference to `dax_get_by_host' drivers/md/dm.o: In function `dm_dax_flush': >> drivers/md/dm.c:1003: undefined reference to `dax_get_private' drivers/md/dm.o: In function `dm_dax_copy_from_iter': drivers/md/dm.c:979: undefined reference to `dax_get_private' drivers/md/dm.o: In function `dm_dax_direct_access': drivers/md/dm.c:951: undefined reference to `dax_get_private' drivers/md/dm.o: In function `alloc_dev': >> drivers/md/dm.c:1783: undefined reference to `alloc_dax' drivers/md/dm-table.o: In function `device_dax_write_cache_enabled': drivers/md/dm-table.c:1644: undefined reference to `dax_write_cache_enabled' drivers/md/dm-table.o: In function `dm_table_set_restrictions': drivers/md/dm-table.c:1822: undefined reference to `dax_write_cache' drivers/md/dm-linear.o: In function `linear_dax_flush': >> drivers/md/dm-linear.c:197: undefined reference to `bdev_dax_pgoff' >> drivers/md/dm-linear.c:199: undefined reference to `dax_flush' drivers/md/dm-linear.o: In function `linear_dax_copy_from_iter': drivers/md/dm-linear.c:183: undefined reference to `bdev_dax_pgoff' >> drivers/md/dm-linear.c:185: undefined reference to `dax_copy_from_iter' drivers/md/dm-linear.o: In function `linear_dax_direct_access': drivers/md/dm-linear.c:168: undefined reference to `bdev_dax_pgoff' >> drivers/md/dm-linear.c:171: undefined reference to `dax_direct_access' drivers/md/dm-stripe.o: In function `stripe_dax_flush': >> drivers/md/dm-stripe.c:369: undefined reference to `bdev_dax_pgoff' >> drivers/md/dm-stripe.c:371: undefined reference to `dax_flush' drivers/md/dm-stripe.o: In function `stripe_dax_copy_from_iter': drivers/md/dm-stripe.c:350: undefined reference to `bdev_dax_pgoff' >> drivers/md/dm-stripe.c:352: undefined reference to `dax_copy_from_iter' drivers/md/dm-stripe.o: In function `stripe_dax_direct_access': drivers/md/dm-stripe.c:330: undefined reference to `bdev_dax_pgoff' >> drivers/md/dm-stripe.c:333: undefined reference to `dax_direct_access' vim +1684 drivers/md/dm.c 4a0b4ddf2 Mike Snitzer 2010-08-12 1672 0f20972f7 Mike Snitzer 2015-04-28 1673 static void cleanup_mapped_device(struct mapped_device *md) 0f20972f7 Mike Snitzer 2015-04-28 1674 { 0f20972f7 Mike Snitzer 2015-04-28 1675 if (md->wq) 0f20972f7 Mike Snitzer 2015-04-28 1676 destroy_workqueue(md->wq); 0f20972f7 Mike Snitzer 2015-04-28 1677 if (md->kworker_task) 0f20972f7 Mike Snitzer 2015-04-28 1678 kthread_stop(md->kworker_task); 0f20972f7 Mike Snitzer 2015-04-28 1679 mempool_destroy(md->io_pool); 0f20972f7 Mike Snitzer 2015-04-28 1680 if (md->bs) 0f20972f7 Mike Snitzer 2015-04-28 1681 bioset_free(md->bs); 0f20972f7 Mike Snitzer 2015-04-28 1682 f26c5719b Dan Williams 2017-04-12 1683 if (md->dax_dev) { f26c5719b Dan Williams 2017-04-12 @1684 kill_dax(md->dax_dev); f26c5719b Dan Williams 2017-04-12 @1685 put_dax(md->dax_dev); f26c5719b Dan Williams 2017-04-12 1686 md->dax_dev = NULL; f26c5719b Dan Williams 2017-04-12 1687 } f26c5719b Dan Williams 2017-04-12 1688 0f20972f7 Mike Snitzer 2015-04-28 1689 if (md->disk) { 0f20972f7 Mike Snitzer 2015-04-28 1690 spin_lock(&_minor_lock); 0f20972f7 Mike Snitzer 2015-04-28 1691 md->disk->private_data = NULL; 0f20972f7 Mike Snitzer 2015-04-28 1692 spin_unlock(&_minor_lock); 0f20972f7 Mike Snitzer 2015-04-28 1693 del_gendisk(md->disk); 0f20972f7 Mike Snitzer 2015-04-28 1694 put_disk(md->disk); 0f20972f7 Mike Snitzer 2015-04-28 1695 } 0f20972f7 Mike Snitzer 2015-04-28 1696 0f20972f7 Mike Snitzer 2015-04-28 1697 if (md->queue) 0f20972f7 Mike Snitzer 2015-04-28 1698 blk_cleanup_queue(md->queue); 0f20972f7 Mike Snitzer 2015-04-28 1699 d09960b00 Tahsin Erdogan 2016-10-10 1700 cleanup_srcu_struct(&md->io_barrier); d09960b00 Tahsin Erdogan 2016-10-10 1701 0f20972f7 Mike Snitzer 2015-04-28 1702 if (md->bdev) { 0f20972f7 Mike Snitzer 2015-04-28 1703 bdput(md->bdev); 0f20972f7 Mike Snitzer 2015-04-28 1704 md->bdev = NULL; 0f20972f7 Mike Snitzer 2015-04-28 1705 } 4cc96131a Mike Snitzer 2016-05-12 1706 4cc96131a Mike Snitzer 2016-05-12 1707 dm_mq_cleanup_mapped_device(md); 0f20972f7 Mike Snitzer 2015-04-28 1708 } 0f20972f7 Mike Snitzer 2015-04-28 1709 ^1da177e4 Linus Torvalds 2005-04-16 1710 /* ^1da177e4 Linus Torvalds 2005-04-16 1711 * Allocate and initialise a blank device with a given minor. ^1da177e4 Linus Torvalds 2005-04-16 1712 */ 2b06cfff1 Alasdair G Kergon 2006-06-26 1713 static struct mapped_device *alloc_dev(int minor) ^1da177e4 Linus Torvalds 2005-04-16 1714 { 115485e83 Mike Snitzer 2016-02-22 1715 int r, numa_node_id = dm_get_numa_node(); 74f22ed6b Dan Williams 2017-08-01 1716 struct dax_device *dax_dev = NULL; 115485e83 Mike Snitzer 2016-02-22 1717 struct mapped_device *md; ba61fdd17 Jeff Mahoney 2006-06-26 1718 void *old_md; ^1da177e4 Linus Torvalds 2005-04-16 1719 115485e83 Mike Snitzer 2016-02-22 1720 md = kzalloc_node(sizeof(*md), GFP_KERNEL, numa_node_id); ^1da177e4 Linus Torvalds 2005-04-16 1721 if (!md) { ^1da177e4 Linus Torvalds 2005-04-16 1722 DMWARN("unable to allocate device, out of memory."); ^1da177e4 Linus Torvalds 2005-04-16 1723 return NULL; ^1da177e4 Linus Torvalds 2005-04-16 1724 } ^1da177e4 Linus Torvalds 2005-04-16 1725 10da4f795 Jeff Mahoney 2006-06-26 1726 if (!try_module_get(THIS_MODULE)) 6ed7ade89 Milan Broz 2008-02-08 1727 goto bad_module_get; 10da4f795 Jeff Mahoney 2006-06-26 1728 ^1da177e4 Linus Torvalds 2005-04-16 1729 /* get a minor number for the dev */ 2b06cfff1 Alasdair G Kergon 2006-06-26 1730 if (minor == DM_ANY_MINOR) cf13ab8e0 Frederik Deweerdt 2008-04-24 1731 r = next_free_minor(&minor); 2b06cfff1 Alasdair G Kergon 2006-06-26 1732 else cf13ab8e0 Frederik Deweerdt 2008-04-24 1733 r = specific_minor(minor); ^1da177e4 Linus Torvalds 2005-04-16 1734 if (r < 0) 6ed7ade89 Milan Broz 2008-02-08 1735 goto bad_minor; ^1da177e4 Linus Torvalds 2005-04-16 1736 83d5e5b0a Mikulas Patocka 2013-07-10 1737 r = init_srcu_struct(&md->io_barrier); 83d5e5b0a Mikulas Patocka 2013-07-10 1738 if (r < 0) 83d5e5b0a Mikulas Patocka 2013-07-10 1739 goto bad_io_barrier; 83d5e5b0a Mikulas Patocka 2013-07-10 1740 115485e83 Mike Snitzer 2016-02-22 1741 md->numa_node_id = numa_node_id; 4cc96131a Mike Snitzer 2016-05-12 1742 md->use_blk_mq = dm_use_blk_mq_default(); 591ddcfc4 Mike Snitzer 2016-01-31 1743 md->init_tio_pdu = false; a5664dad7 Mike Snitzer 2010-08-12 1744 md->type = DM_TYPE_NONE; e61290a4a Daniel Walker 2008-02-08 1745 mutex_init(&md->suspend_lock); a5664dad7 Mike Snitzer 2010-08-12 1746 mutex_init(&md->type_lock); 86f1152b1 Benjamin Marzinski 2014-08-13 1747 mutex_init(&md->table_devices_lock); 022c26110 Mikulas Patocka 2009-04-02 1748 spin_lock_init(&md->deferred_lock); ^1da177e4 Linus Torvalds 2005-04-16 1749 atomic_set(&md->holders, 1); 5c6bd75d0 Alasdair G Kergon 2006-06-26 1750 atomic_set(&md->open_count, 0); ^1da177e4 Linus Torvalds 2005-04-16 1751 atomic_set(&md->event_nr, 0); 7a8c3d3b9 Mike Anderson 2007-10-19 1752 atomic_set(&md->uevent_seq, 0); 7a8c3d3b9 Mike Anderson 2007-10-19 1753 INIT_LIST_HEAD(&md->uevent_list); 86f1152b1 Benjamin Marzinski 2014-08-13 1754 INIT_LIST_HEAD(&md->table_devices); 7a8c3d3b9 Mike Anderson 2007-10-19 1755 spin_lock_init(&md->uevent_lock); ^1da177e4 Linus Torvalds 2005-04-16 1756 115485e83 Mike Snitzer 2016-02-22 1757 md->queue = blk_alloc_queue_node(GFP_KERNEL, numa_node_id); ^1da177e4 Linus Torvalds 2005-04-16 1758 if (!md->queue) 0f20972f7 Mike Snitzer 2015-04-28 1759 goto bad; ^1da177e4 Linus Torvalds 2005-04-16 1760 4a0b4ddf2 Mike Snitzer 2010-08-12 1761 dm_init_md_queue(md); 9faf400f7 Stefan Bader 2006-10-03 1762 115485e83 Mike Snitzer 2016-02-22 1763 md->disk = alloc_disk_node(1, numa_node_id); ^1da177e4 Linus Torvalds 2005-04-16 1764 if (!md->disk) 0f20972f7 Mike Snitzer 2015-04-28 1765 goto bad; ^1da177e4 Linus Torvalds 2005-04-16 1766 316d315bf Nikanth Karthikesan 2009-10-06 1767 atomic_set(&md->pending[0], 0); 316d315bf Nikanth Karthikesan 2009-10-06 1768 atomic_set(&md->pending[1], 0); f0b041153 Jeff Mahoney 2006-06-26 1769 init_waitqueue_head(&md->wait); 53d5914f2 Mikulas Patocka 2009-04-02 1770 INIT_WORK(&md->work, dm_wq_work); f0b041153 Jeff Mahoney 2006-06-26 1771 init_waitqueue_head(&md->eventq); 2995fa78e Mikulas Patocka 2014-01-13 1772 init_completion(&md->kobj_holder.completion); 2eb6e1e3a Keith Busch 2014-10-17 1773 md->kworker_task = NULL; f0b041153 Jeff Mahoney 2006-06-26 1774 ^1da177e4 Linus Torvalds 2005-04-16 1775 md->disk->major = _major; ^1da177e4 Linus Torvalds 2005-04-16 1776 md->disk->first_minor = minor; ^1da177e4 Linus Torvalds 2005-04-16 1777 md->disk->fops = &dm_blk_dops; ^1da177e4 Linus Torvalds 2005-04-16 1778 md->disk->queue = md->queue; ^1da177e4 Linus Torvalds 2005-04-16 1779 md->disk->private_data = md; ^1da177e4 Linus Torvalds 2005-04-16 1780 sprintf(md->disk->disk_name, "dm-%d", minor); f26c5719b Dan Williams 2017-04-12 1781 74f22ed6b Dan Williams 2017-08-01 1782 if (IS_ENABLED(CONFIG_DAX)) { f26c5719b Dan Williams 2017-04-12 @1783 dax_dev = alloc_dax(md, md->disk->disk_name, &dm_dax_ops); f26c5719b Dan Williams 2017-04-12 1784 if (!dax_dev) f26c5719b Dan Williams 2017-04-12 1785 goto bad; 74f22ed6b Dan Williams 2017-08-01 1786 } f26c5719b Dan Williams 2017-04-12 1787 md->dax_dev = dax_dev; f26c5719b Dan Williams 2017-04-12 1788 ^1da177e4 Linus Torvalds 2005-04-16 1789 add_disk(md->disk); 7e51f257e Mike Anderson 2006-03-27 1790 format_dev_t(md->name, MKDEV(_major, minor)); ^1da177e4 Linus Torvalds 2005-04-16 1791 670368a8d Tejun Heo 2013-07-30 1792 md->wq = alloc_workqueue("kdmflush", WQ_MEM_RECLAIM, 0); 304f3f6a5 Milan Broz 2008-02-08 1793 if (!md->wq) 0f20972f7 Mike Snitzer 2015-04-28 1794 goto bad; 304f3f6a5 Milan Broz 2008-02-08 1795 32a926da5 Mikulas Patocka 2009-06-22 1796 md->bdev = bdget_disk(md->disk, 0); 32a926da5 Mikulas Patocka 2009-06-22 1797 if (!md->bdev) 0f20972f7 Mike Snitzer 2015-04-28 1798 goto bad; 32a926da5 Mikulas Patocka 2009-06-22 1799 3a83f4677 Ming Lei 2016-11-22 1800 bio_init(&md->flush_bio, NULL, 0); 6a8736d10 Tejun Heo 2010-09-08 1801 md->flush_bio.bi_bdev = md->bdev; ff0361b34 Jan Kara 2017-05-31 1802 md->flush_bio.bi_opf = REQ_OP_WRITE | REQ_PREFLUSH | REQ_SYNC; 6a8736d10 Tejun Heo 2010-09-08 1803 fd2ed4d25 Mikulas Patocka 2013-08-16 1804 dm_stats_init(&md->stats); fd2ed4d25 Mikulas Patocka 2013-08-16 1805 ba61fdd17 Jeff Mahoney 2006-06-26 1806 /* Populate the mapping, nobody knows we exist yet */ f32c10b09 Jeff Mahoney 2006-06-26 1807 spin_lock(&_minor_lock); ba61fdd17 Jeff Mahoney 2006-06-26 1808 old_md = idr_replace(&_minor_idr, md, minor); f32c10b09 Jeff Mahoney 2006-06-26 1809 spin_unlock(&_minor_lock); ba61fdd17 Jeff Mahoney 2006-06-26 1810 ba61fdd17 Jeff Mahoney 2006-06-26 1811 BUG_ON(old_md != MINOR_ALLOCED); ba61fdd17 Jeff Mahoney 2006-06-26 1812 ^1da177e4 Linus Torvalds 2005-04-16 1813 return md; ^1da177e4 Linus Torvalds 2005-04-16 1814 0f20972f7 Mike Snitzer 2015-04-28 1815 bad: 0f20972f7 Mike Snitzer 2015-04-28 1816 cleanup_mapped_device(md); 83d5e5b0a Mikulas Patocka 2013-07-10 1817 bad_io_barrier: ^1da177e4 Linus Torvalds 2005-04-16 1818 free_minor(minor); 6ed7ade89 Milan Broz 2008-02-08 1819 bad_minor: 10da4f795 Jeff Mahoney 2006-06-26 1820 module_put(THIS_MODULE); 6ed7ade89 Milan Broz 2008-02-08 1821 bad_module_get: ^1da177e4 Linus Torvalds 2005-04-16 1822 kfree(md); ^1da177e4 Linus Torvalds 2005-04-16 1823 return NULL; ^1da177e4 Linus Torvalds 2005-04-16 1824 } ^1da177e4 Linus Torvalds 2005-04-16 1825 :::::: The code at line 1684 was first introduced by commit :::::: f26c5719b2d7b00de69eb83eb1c1c831759fdc9b dm: add dax_device and dax_operations support :::::: TO: Dan Williams <dan.j.williams@xxxxxxxxx> :::::: CC: Dan Williams <dan.j.williams@xxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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