Hi Anuj, Thank you for the patch! Yet something to improve: [auto build test ERROR on axboe-block/for-next] [also build test ERROR on device-mapper-dm/for-next linus/master v6.3-rc4 next-20230329] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Anuj-Gupta/block-Add-copy-offload-support-infrastructure/20230329-162018 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next patch link: https://lore.kernel.org/r/20230327084103.21601-5-anuj20.g%40samsung.com patch subject: [PATCH v8 4/9] fs, block: copy_file_range for def_blk_ops for direct block device. config: x86_64-randconfig-a013 (https://download.01.org/0day-ci/archive/20230329/202303292349.ED70Fxdw-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/61819d260936954ddd6688548f074e7063dcf39e git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Anuj-Gupta/block-Add-copy-offload-support-infrastructure/20230329-162018 git checkout 61819d260936954ddd6688548f074e7063dcf39e # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 olddefconfig make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash 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/202303292349.ED70Fxdw-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): ld: vmlinux.o: in function `generic_copy_file_checks': >> fs/read_write.c:1453: undefined reference to `I_BDEV' vim +1453 fs/read_write.c 1398 1399 /* 1400 * Performs necessary checks before doing a file copy 1401 * 1402 * Can adjust amount of bytes to copy via @req_count argument. 1403 * Returns appropriate error code that caller should return or 1404 * zero in case the copy should be allowed. 1405 */ 1406 static int generic_copy_file_checks(struct file *file_in, loff_t pos_in, 1407 struct file *file_out, loff_t pos_out, 1408 size_t *req_count, unsigned int flags) 1409 { 1410 struct inode *inode_in = file_inode(file_in); 1411 struct inode *inode_out = file_inode(file_out); 1412 uint64_t count = *req_count; 1413 loff_t size_in; 1414 int ret; 1415 1416 ret = generic_file_rw_checks(file_in, file_out); 1417 if (ret) 1418 return ret; 1419 1420 /* 1421 * We allow some filesystems to handle cross sb copy, but passing 1422 * a file of the wrong filesystem type to filesystem driver can result 1423 * in an attempt to dereference the wrong type of ->private_data, so 1424 * avoid doing that until we really have a good reason. 1425 * 1426 * nfs and cifs define several different file_system_type structures 1427 * and several different sets of file_operations, but they all end up 1428 * using the same ->copy_file_range() function pointer. 1429 */ 1430 if (flags & COPY_FILE_SPLICE) { 1431 /* cross sb splice is allowed */ 1432 } else if (file_out->f_op->copy_file_range) { 1433 if (file_in->f_op->copy_file_range != 1434 file_out->f_op->copy_file_range) 1435 return -EXDEV; 1436 } else if (file_inode(file_in)->i_sb != file_inode(file_out)->i_sb) { 1437 return -EXDEV; 1438 } 1439 1440 /* Don't touch certain kinds of inodes */ 1441 if (IS_IMMUTABLE(inode_out)) 1442 return -EPERM; 1443 1444 if (IS_SWAPFILE(inode_in) || IS_SWAPFILE(inode_out)) 1445 return -ETXTBSY; 1446 1447 /* Ensure offsets don't wrap. */ 1448 if (pos_in + count < pos_in || pos_out + count < pos_out) 1449 return -EOVERFLOW; 1450 1451 /* Shorten the copy to EOF */ 1452 if (S_ISBLK(inode_in->i_mode)) > 1453 size_in = bdev_nr_bytes(I_BDEV(file_in->f_mapping->host)); 1454 else 1455 size_in = i_size_read(inode_in); 1456 1457 if (pos_in >= size_in) 1458 count = 0; 1459 else 1460 count = min(count, size_in - (uint64_t)pos_in); 1461 1462 ret = generic_write_check_limits(file_out, pos_out, &count); 1463 if (ret) 1464 return ret; 1465 1466 /* Don't allow overlapped copying within the same file. */ 1467 if (inode_in == inode_out && 1468 pos_out + count > pos_in && 1469 pos_out < pos_in + count) 1470 return -EINVAL; 1471 1472 *req_count = count; 1473 return 0; 1474 } 1475 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
