Hi Shiyang, Thank you for the patch! Yet something to improve: [auto build test ERROR on linux/master] [also build test ERROR on linus/master v5.17-rc1 next-20220127] [cannot apply to xfs-linux/for-next] [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/20220127-204239 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 2c271fe77d52a0555161926c232cd5bc07178b39 config: ia64-defconfig (https://download.01.org/0day-ci/archive/20220128/202201280314.SI8wtlfT-lkp@xxxxxxxxx/config) compiler: ia64-linux-gcc (GCC) 11.2.0 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/cb7650562991fc273fbf4c53b6e3db4bb9bb0b5e 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/20220127-204239 git checkout cb7650562991fc273fbf4c53b6e3db4bb9bb0b5e # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=ia64 SHELL=/bin/bash fs/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from fs/xfs/xfs_buf.h:14, from fs/xfs/xfs_linux.h:80, from fs/xfs/xfs.h:22, from fs/xfs/xfs_buf.c:6: include/linux/dax.h:73:30: warning: 'struct dax_holder_operations' declared inside parameter list will not be visible outside of this definition or declaration 73 | const struct dax_holder_operations *ops) | ^~~~~~~~~~~~~~~~~~~~~ fs/xfs/xfs_buf.c: In function 'xfs_alloc_buftarg': >> fs/xfs/xfs_buf.c:1959:33: error: passing argument 3 of 'dax_register_holder' from incompatible pointer type [-Werror=incompatible-pointer-types] 1959 | &xfs_dax_holder_operations); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ | | | const struct dax_holder_operations * In file included from fs/xfs/xfs_buf.h:14, from fs/xfs/xfs_linux.h:80, from fs/xfs/xfs.h:22, from fs/xfs/xfs_buf.c:6: include/linux/dax.h:73:53: note: expected 'const struct dax_holder_operations *' but argument is of type 'const struct dax_holder_operations *' 73 | const struct dax_holder_operations *ops) | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~ cc1: some warnings being treated as errors -- In file included from fs/xfs/xfs_buf.h:14, from fs/xfs/xfs_linux.h:80, from fs/xfs/xfs.h:22, from fs/xfs/xfs_notify_failure.c:6: include/linux/dax.h:73:30: warning: 'struct dax_holder_operations' declared inside parameter list will not be visible outside of this definition or declaration 73 | const struct dax_holder_operations *ops) | ^~~~~~~~~~~~~~~~~~~~~ >> fs/xfs/xfs_notify_failure.c:220:14: error: variable 'xfs_dax_holder_operations' has initializer but incomplete type 220 | const struct dax_holder_operations xfs_dax_holder_operations = { | ^~~~~~~~~~~~~~~~~~~~~ >> fs/xfs/xfs_notify_failure.c:221:10: error: 'const struct dax_holder_operations' has no member named 'notify_failure' 221 | .notify_failure = xfs_dax_notify_failure, | ^~~~~~~~~~~~~~ fs/xfs/xfs_notify_failure.c:221:35: warning: excess elements in struct initializer 221 | .notify_failure = xfs_dax_notify_failure, | ^~~~~~~~~~~~~~~~~~~~~~ fs/xfs/xfs_notify_failure.c:221:35: note: (near initialization for 'xfs_dax_holder_operations') >> fs/xfs/xfs_notify_failure.c:220:36: error: storage size of 'xfs_dax_holder_operations' isn't known 220 | const struct dax_holder_operations xfs_dax_holder_operations = { | ^~~~~~~~~~~~~~~~~~~~~~~~~ vim +/dax_register_holder +1959 fs/xfs/xfs_buf.c 1938 1939 struct xfs_buftarg * 1940 xfs_alloc_buftarg( 1941 struct xfs_mount *mp, 1942 struct block_device *bdev) 1943 { 1944 xfs_buftarg_t *btp; 1945 1946 btp = kmem_zalloc(sizeof(*btp), KM_NOFS); 1947 1948 btp->bt_mount = mp; 1949 btp->bt_dev = bdev->bd_dev; 1950 btp->bt_bdev = bdev; 1951 btp->bt_daxdev = fs_dax_get_by_bdev(bdev, &btp->bt_dax_part_off); 1952 if (btp->bt_daxdev) { 1953 if (dax_get_holder(btp->bt_daxdev)) { 1954 xfs_err(mp, "DAX device already in use?!"); 1955 goto error_free; 1956 } 1957 1958 dax_register_holder(btp->bt_daxdev, mp, > 1959 &xfs_dax_holder_operations); 1960 } 1961 1962 /* 1963 * Buffer IO error rate limiting. Limit it to no more than 10 messages 1964 * per 30 seconds so as to not spam logs too much on repeated errors. 1965 */ 1966 ratelimit_state_init(&btp->bt_ioerror_rl, 30 * HZ, 1967 DEFAULT_RATELIMIT_BURST); 1968 1969 if (xfs_setsize_buftarg_early(btp, bdev)) 1970 goto error_free; 1971 1972 if (list_lru_init(&btp->bt_lru)) 1973 goto error_free; 1974 1975 if (percpu_counter_init(&btp->bt_io_count, 0, GFP_KERNEL)) 1976 goto error_lru; 1977 1978 btp->bt_shrinker.count_objects = xfs_buftarg_shrink_count; 1979 btp->bt_shrinker.scan_objects = xfs_buftarg_shrink_scan; 1980 btp->bt_shrinker.seeks = DEFAULT_SEEKS; 1981 btp->bt_shrinker.flags = SHRINKER_NUMA_AWARE; 1982 if (register_shrinker(&btp->bt_shrinker)) 1983 goto error_pcpu; 1984 return btp; 1985 1986 error_pcpu: 1987 percpu_counter_destroy(&btp->bt_io_count); 1988 error_lru: 1989 list_lru_destroy(&btp->bt_lru); 1990 error_free: 1991 kmem_free(btp); 1992 return NULL; 1993 } 1994 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx