Hi Shiyang, Thank you for the patch! Yet something to improve: [auto build test ERROR on xfs-linux/for-next] [also build test ERROR on dm/for-next linus/master v5.13-rc4] [cannot apply to hnaz-linux-mm/master next-20210603] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Shiyang-Ruan/fsdax-introduce-fs-query-to-support-reflink/20210604-092105 base: https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git for-next config: h8300-randconfig-r021-20210604 (attached as .config) compiler: h8300-linux-gcc (GCC) 9.3.0 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://github.com/0day-ci/linux/commit/94db8a17905296e4d5bfe93eb5199f477646622a git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Shiyang-Ruan/fsdax-introduce-fs-query-to-support-reflink/20210604-092105 git checkout 94db8a17905296e4d5bfe93eb5199f477646622a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=h8300 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All error/warnings (new ones prefixed by >>): drivers/md/dm.c: In function 'open_table_device': >> drivers/md/dm.c:784:12: error: implicit declaration of function 'dax_get_holder'; did you mean 'xa_get_order'? [-Werror=implicit-function-declaration] 784 | holders = dax_get_holder(td->dm_dev.dax_dev); | ^~~~~~~~~~~~~~ | xa_get_order >> drivers/md/dm.c:784:10: warning: assignment to 'struct list_head *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 784 | holders = dax_get_holder(td->dm_dev.dax_dev); | ^ >> drivers/md/dm.c:788:3: error: implicit declaration of function 'dax_set_holder'; did you mean 'xas_set_order'? [-Werror=implicit-function-declaration] 788 | dax_set_holder(td->dm_dev.dax_dev, holders, &dm_dax_holder_ops); | ^~~~~~~~~~~~~~ | xas_set_order drivers/md/dm.c: In function 'close_table_device': drivers/md/dm.c:808:10: warning: assignment to 'struct list_head *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 808 | holders = dax_get_holder(td->dm_dev.dax_dev); | ^ drivers/md/dm.c: In function 'dm_dax_corrputed_range': >> drivers/md/dm.c:1339:30: warning: initialization of 'struct list_head *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 1339 | struct list_head *holders = dax_get_holder(dax_dev); | ^~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +784 drivers/md/dm.c 750 751 static char *_dm_claim_ptr = "I belong to device-mapper"; 752 static const struct dax_holder_operations dm_dax_holder_ops; 753 struct dm_holder { 754 struct list_head list; 755 struct mapped_device *md; 756 }; 757 /* 758 * Open a table device so we can use it as a map destination. 759 */ 760 static int open_table_device(struct table_device *td, dev_t dev, 761 struct mapped_device *md) 762 { 763 struct block_device *bdev; 764 struct list_head *holders; 765 struct dm_holder *holder; 766 767 int r; 768 769 BUG_ON(td->dm_dev.bdev); 770 771 bdev = blkdev_get_by_dev(dev, td->dm_dev.mode | FMODE_EXCL, _dm_claim_ptr); 772 if (IS_ERR(bdev)) 773 return PTR_ERR(bdev); 774 775 r = bd_link_disk_holder(bdev, dm_disk(md)); 776 if (r) { 777 blkdev_put(bdev, td->dm_dev.mode | FMODE_EXCL); 778 return r; 779 } 780 781 td->dm_dev.bdev = bdev; 782 td->dm_dev.dax_dev = dax_get_by_host(bdev->bd_disk->disk_name); 783 > 784 holders = dax_get_holder(td->dm_dev.dax_dev); 785 if (!holders) { 786 holders = kmalloc(sizeof(*holders), GFP_KERNEL); 787 INIT_LIST_HEAD(holders); > 788 dax_set_holder(td->dm_dev.dax_dev, holders, &dm_dax_holder_ops); 789 } 790 holder = kmalloc(sizeof(*holder), GFP_KERNEL); 791 holder->md = md; 792 list_add_tail(&holder->list, holders); 793 794 return 0; 795 } 796 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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