227 	struct thin_disk_superblock *disk_super = dm_block_data(b);  in sb_prepare_for_write()  local
229 	disk_super->blocknr = cpu_to_le64(dm_block_location(b));  in sb_prepare_for_write()
230 	disk_super->csum = cpu_to_le32(dm_bm_checksum(&disk_super->flags,  in sb_prepare_for_write()
239 	struct thin_disk_superblock *disk_super = dm_block_data(b);  in sb_check()  local
242 	if (dm_block_location(b) != le64_to_cpu(disk_super->blocknr)) {  in sb_check()
244 		      "wanted %llu", le64_to_cpu(disk_super->blocknr),  in sb_check()
249 	if (le64_to_cpu(disk_super->magic) != THIN_SUPERBLOCK_MAGIC) {  in sb_check()
251 		      "wanted %llu", le64_to_cpu(disk_super->magic),  in sb_check()
256 	csum_le = cpu_to_le32(dm_bm_checksum(&disk_super->flags,  in sb_check()
259 	if (csum_le != disk_super->csum) {  in sb_check()
261 		      le32_to_cpu(csum_le), le32_to_cpu(disk_super->csum));  in sb_check()
478 	struct thin_disk_superblock *disk_super;  in __write_initial_superblock()  local
500 	disk_super = dm_block_data(sblock);  in __write_initial_superblock()
501 	disk_super->flags = 0;  in __write_initial_superblock()
502 	memset(disk_super->uuid, 0, sizeof(disk_super->uuid));  in __write_initial_superblock()
503 	disk_super->magic = cpu_to_le64(THIN_SUPERBLOCK_MAGIC);  in __write_initial_superblock()
504 	disk_super->version = cpu_to_le32(THIN_VERSION);  in __write_initial_superblock()
505 	disk_super->time = 0;  in __write_initial_superblock()
506 	disk_super->trans_id = 0;  in __write_initial_superblock()
507 	disk_super->held_root = 0;  in __write_initial_superblock()
509 	copy_sm_roots(pmd, disk_super);  in __write_initial_superblock()
511 	disk_super->data_mapping_root = cpu_to_le64(pmd->root);  in __write_initial_superblock()
512 	disk_super->device_details_root = cpu_to_le64(pmd->details_root);  in __write_initial_superblock()
513 	disk_super->metadata_block_size = cpu_to_le32(THIN_METADATA_BLOCK_SIZE);  in __write_initial_superblock()
514 	disk_super->metadata_nr_blocks = cpu_to_le64(bdev_size >> SECTOR_TO_BLOCK_SHIFT);  in __write_initial_superblock()
515 	disk_super->data_block_size = cpu_to_le32(pmd->data_block_size);  in __write_initial_superblock()
574 static int __check_incompat_features(struct thin_disk_superblock *disk_super,  in __check_incompat_features()  argument
579 	features = le32_to_cpu(disk_super->incompat_flags) & ~THIN_FEATURE_INCOMPAT_SUPP;  in __check_incompat_features()
592 	features = le32_to_cpu(disk_super->compat_ro_flags) & ~THIN_FEATURE_COMPAT_RO_SUPP;  in __check_incompat_features()
606 	struct thin_disk_superblock *disk_super;  in __open_metadata()  local
615 	disk_super = dm_block_data(sblock);  in __open_metadata()
618 	if (le32_to_cpu(disk_super->data_block_size) != pmd->data_block_size) {  in __open_metadata()
620 		      le32_to_cpu(disk_super->data_block_size),  in __open_metadata()
626 	r = __check_incompat_features(disk_super, pmd);  in __open_metadata()
631 			       disk_super->metadata_space_map_root,  in __open_metadata()
632 			       sizeof(disk_super->metadata_space_map_root),  in __open_metadata()
639 	pmd->data_sm = dm_sm_disk_open(pmd->tm, disk_super->data_space_map_root,  in __open_metadata()
640 				       sizeof(disk_super->data_space_map_root));  in __open_metadata()
715 	struct thin_disk_superblock *disk_super;  in __begin_transaction()  local
727 	disk_super = dm_block_data(sblock);  in __begin_transaction()
728 	pmd->time = le32_to_cpu(disk_super->time);  in __begin_transaction()
729 	pmd->root = le64_to_cpu(disk_super->data_mapping_root);  in __begin_transaction()
730 	pmd->details_root = le64_to_cpu(disk_super->device_details_root);  in __begin_transaction()
731 	pmd->trans_id = le64_to_cpu(disk_super->trans_id);  in __begin_transaction()
732 	pmd->flags = le32_to_cpu(disk_super->flags);  in __begin_transaction()
733 	pmd->data_block_size = le32_to_cpu(disk_super->data_block_size);  in __begin_transaction()
778 	struct thin_disk_superblock *disk_super;  in __commit_transaction()  local
814 	disk_super = dm_block_data(sblock);  in __commit_transaction()
815 	disk_super->time = cpu_to_le32(pmd->time);  in __commit_transaction()
816 	disk_super->data_mapping_root = cpu_to_le64(pmd->root);  in __commit_transaction()
817 	disk_super->device_details_root = cpu_to_le64(pmd->details_root);  in __commit_transaction()
818 	disk_super->trans_id = cpu_to_le64(pmd->trans_id);  in __commit_transaction()
819 	disk_super->flags = cpu_to_le32(pmd->flags);  in __commit_transaction()
821 	copy_sm_roots(pmd, disk_super);  in __commit_transaction()
1205 	struct thin_disk_superblock *disk_super;  in __reserve_metadata_snap()  local
1227 	disk_super = dm_block_data(copy);  in __reserve_metadata_snap()
1229 	if (le64_to_cpu(disk_super->held_root)) {  in __reserve_metadata_snap()
1240 	memset(&disk_super->data_space_map_root, 0,  in __reserve_metadata_snap()
1241 	       sizeof(disk_super->data_space_map_root));  in __reserve_metadata_snap()
1242 	memset(&disk_super->metadata_space_map_root, 0,  in __reserve_metadata_snap()
1243 	       sizeof(disk_super->metadata_space_map_root));  in __reserve_metadata_snap()
1248 	dm_tm_inc(pmd->tm, le64_to_cpu(disk_super->data_mapping_root));  in __reserve_metadata_snap()
1249 	dm_tm_inc(pmd->tm, le64_to_cpu(disk_super->device_details_root));  in __reserve_metadata_snap()
1261 	disk_super = dm_block_data(sblock);  in __reserve_metadata_snap()
1262 	disk_super->held_root = cpu_to_le64(held_root);  in __reserve_metadata_snap()
1282 	struct thin_disk_superblock *disk_super;  in __release_metadata_snap()  local
1290 	disk_super = dm_block_data(sblock);  in __release_metadata_snap()
1291 	held_root = le64_to_cpu(disk_super->held_root);  in __release_metadata_snap()
1292 	disk_super->held_root = cpu_to_le64(0);  in __release_metadata_snap()
1305 	disk_super = dm_block_data(copy);  in __release_metadata_snap()
1306 	dm_btree_del(&pmd->info, le64_to_cpu(disk_super->data_mapping_root));  in __release_metadata_snap()
1307 	dm_btree_del(&pmd->details_info, le64_to_cpu(disk_super->device_details_root));  in __release_metadata_snap()
1331 	struct thin_disk_superblock *disk_super;  in __get_metadata_snap()  local
1339 	disk_super = dm_block_data(sblock);  in __get_metadata_snap()
1340 	*result = le64_to_cpu(disk_super->held_root);  in __get_metadata_snap()
1913 	struct thin_disk_superblock *disk_super;  in dm_pool_metadata_set_needs_check()  local
1924 	disk_super = dm_block_data(sblock);  in dm_pool_metadata_set_needs_check()
1925 	disk_super->flags = cpu_to_le32(pmd->flags);  in dm_pool_metadata_set_needs_check()