228 	struct thin_disk_superblock *disk_super = dm_block_data(b);  in sb_prepare_for_write()  local
230 	disk_super->blocknr = cpu_to_le64(dm_block_location(b));  in sb_prepare_for_write()
231 	disk_super->csum = cpu_to_le32(dm_bm_checksum(&disk_super->flags,  in sb_prepare_for_write()
240 	struct thin_disk_superblock *disk_super = dm_block_data(b);  in sb_check()  local
243 	if (dm_block_location(b) != le64_to_cpu(disk_super->blocknr)) {  in sb_check()
245 		      "wanted %llu", le64_to_cpu(disk_super->blocknr),  in sb_check()
250 	if (le64_to_cpu(disk_super->magic) != THIN_SUPERBLOCK_MAGIC) {  in sb_check()
252 		      "wanted %llu", le64_to_cpu(disk_super->magic),  in sb_check()
257 	csum_le = cpu_to_le32(dm_bm_checksum(&disk_super->flags,  in sb_check()
260 	if (csum_le != disk_super->csum) {  in sb_check()
262 		      le32_to_cpu(csum_le), le32_to_cpu(disk_super->csum));  in sb_check()
477 	struct thin_disk_superblock *disk_super;  in __write_initial_superblock()  local
499 	disk_super = dm_block_data(sblock);  in __write_initial_superblock()
500 	disk_super->flags = 0;  in __write_initial_superblock()
501 	memset(disk_super->uuid, 0, sizeof(disk_super->uuid));  in __write_initial_superblock()
502 	disk_super->magic = cpu_to_le64(THIN_SUPERBLOCK_MAGIC);  in __write_initial_superblock()
503 	disk_super->version = cpu_to_le32(THIN_VERSION);  in __write_initial_superblock()
504 	disk_super->time = 0;  in __write_initial_superblock()
505 	disk_super->trans_id = 0;  in __write_initial_superblock()
506 	disk_super->held_root = 0;  in __write_initial_superblock()
508 	copy_sm_roots(pmd, disk_super);  in __write_initial_superblock()
510 	disk_super->data_mapping_root = cpu_to_le64(pmd->root);  in __write_initial_superblock()
511 	disk_super->device_details_root = cpu_to_le64(pmd->details_root);  in __write_initial_superblock()
512 	disk_super->metadata_block_size = cpu_to_le32(THIN_METADATA_BLOCK_SIZE);  in __write_initial_superblock()
513 	disk_super->metadata_nr_blocks = cpu_to_le64(bdev_size >> SECTOR_TO_BLOCK_SHIFT);  in __write_initial_superblock()
514 	disk_super->data_block_size = cpu_to_le32(pmd->data_block_size);  in __write_initial_superblock()
573 static int __check_incompat_features(struct thin_disk_superblock *disk_super,  in __check_incompat_features()  argument
578 	features = le32_to_cpu(disk_super->incompat_flags) & ~THIN_FEATURE_INCOMPAT_SUPP;  in __check_incompat_features()
591 	features = le32_to_cpu(disk_super->compat_ro_flags) & ~THIN_FEATURE_COMPAT_RO_SUPP;  in __check_incompat_features()
605 	struct thin_disk_superblock *disk_super;  in __open_metadata()  local
614 	disk_super = dm_block_data(sblock);  in __open_metadata()
617 	if (le32_to_cpu(disk_super->data_block_size) != pmd->data_block_size) {  in __open_metadata()
619 		      le32_to_cpu(disk_super->data_block_size),  in __open_metadata()
625 	r = __check_incompat_features(disk_super, pmd);  in __open_metadata()
630 			       disk_super->metadata_space_map_root,  in __open_metadata()
631 			       sizeof(disk_super->metadata_space_map_root),  in __open_metadata()
638 	pmd->data_sm = dm_sm_disk_open(pmd->tm, disk_super->data_space_map_root,  in __open_metadata()
639 				       sizeof(disk_super->data_space_map_root));  in __open_metadata()
712 	struct thin_disk_superblock *disk_super;  in __begin_transaction()  local
724 	disk_super = dm_block_data(sblock);  in __begin_transaction()
725 	pmd->time = le32_to_cpu(disk_super->time);  in __begin_transaction()
726 	pmd->root = le64_to_cpu(disk_super->data_mapping_root);  in __begin_transaction()
727 	pmd->details_root = le64_to_cpu(disk_super->device_details_root);  in __begin_transaction()
728 	pmd->trans_id = le64_to_cpu(disk_super->trans_id);  in __begin_transaction()
729 	pmd->flags = le32_to_cpu(disk_super->flags);  in __begin_transaction()
730 	pmd->data_block_size = le32_to_cpu(disk_super->data_block_size);  in __begin_transaction()
775 	struct thin_disk_superblock *disk_super;  in __commit_transaction()  local
811 	disk_super = dm_block_data(sblock);  in __commit_transaction()
812 	disk_super->time = cpu_to_le32(pmd->time);  in __commit_transaction()
813 	disk_super->data_mapping_root = cpu_to_le64(pmd->root);  in __commit_transaction()
814 	disk_super->device_details_root = cpu_to_le64(pmd->details_root);  in __commit_transaction()
815 	disk_super->trans_id = cpu_to_le64(pmd->trans_id);  in __commit_transaction()
816 	disk_super->flags = cpu_to_le32(pmd->flags);  in __commit_transaction()
818 	copy_sm_roots(pmd, disk_super);  in __commit_transaction()
1203 	struct thin_disk_superblock *disk_super;  in __reserve_metadata_snap()  local
1219 	disk_super = dm_block_data(copy);  in __reserve_metadata_snap()
1221 	if (le64_to_cpu(disk_super->held_root)) {  in __reserve_metadata_snap()
1232 	memset(&disk_super->data_space_map_root, 0,  in __reserve_metadata_snap()
1233 	       sizeof(disk_super->data_space_map_root));  in __reserve_metadata_snap()
1234 	memset(&disk_super->metadata_space_map_root, 0,  in __reserve_metadata_snap()
1235 	       sizeof(disk_super->metadata_space_map_root));  in __reserve_metadata_snap()
1240 	dm_tm_inc(pmd->tm, le64_to_cpu(disk_super->data_mapping_root));  in __reserve_metadata_snap()
1241 	dm_tm_inc(pmd->tm, le64_to_cpu(disk_super->device_details_root));  in __reserve_metadata_snap()
1253 	disk_super = dm_block_data(sblock);  in __reserve_metadata_snap()
1254 	disk_super->held_root = cpu_to_le64(held_root);  in __reserve_metadata_snap()
1274 	struct thin_disk_superblock *disk_super;  in __release_metadata_snap()  local
1282 	disk_super = dm_block_data(sblock);  in __release_metadata_snap()
1283 	held_root = le64_to_cpu(disk_super->held_root);  in __release_metadata_snap()
1284 	disk_super->held_root = cpu_to_le64(0);  in __release_metadata_snap()
1297 	disk_super = dm_block_data(copy);  in __release_metadata_snap()
1298 	dm_btree_del(&pmd->info, le64_to_cpu(disk_super->data_mapping_root));  in __release_metadata_snap()
1299 	dm_btree_del(&pmd->details_info, le64_to_cpu(disk_super->device_details_root));  in __release_metadata_snap()
1321 	struct thin_disk_superblock *disk_super;  in __get_metadata_snap()  local
1329 	disk_super = dm_block_data(sblock);  in __get_metadata_snap()
1330 	*result = le64_to_cpu(disk_super->held_root);  in __get_metadata_snap()
1773 	struct thin_disk_superblock *disk_super;  in dm_pool_metadata_set_needs_check()  local
1784 	disk_super = dm_block_data(sblock);  in dm_pool_metadata_set_needs_check()
1785 	disk_super->flags = cpu_to_le32(pmd->flags);  in dm_pool_metadata_set_needs_check()