252 	struct thin_disk_superblock *disk_super = dm_block_data(b);  in sb_prepare_for_write()  local
254 	disk_super->blocknr = cpu_to_le64(dm_block_location(b));  in sb_prepare_for_write()
255 	disk_super->csum = cpu_to_le32(dm_bm_checksum(&disk_super->flags,  in sb_prepare_for_write()
264 	struct thin_disk_superblock *disk_super = dm_block_data(b);  in sb_check()  local
267 	if (dm_block_location(b) != le64_to_cpu(disk_super->blocknr)) {  in sb_check()
269 		      "wanted %llu", le64_to_cpu(disk_super->blocknr),  in sb_check()
274 	if (le64_to_cpu(disk_super->magic) != THIN_SUPERBLOCK_MAGIC) {  in sb_check()
276 		      "wanted %llu", le64_to_cpu(disk_super->magic),  in sb_check()
281 	csum_le = cpu_to_le32(dm_bm_checksum(&disk_super->flags,  in sb_check()
284 	if (csum_le != disk_super->csum) {  in sb_check()
286 		      le32_to_cpu(csum_le), le32_to_cpu(disk_super->csum));  in sb_check()
551 	struct thin_disk_superblock *disk_super;  in __write_initial_superblock()  local
573 	disk_super = dm_block_data(sblock);  in __write_initial_superblock()
574 	disk_super->flags = 0;  in __write_initial_superblock()
575 	memset(disk_super->uuid, 0, sizeof(disk_super->uuid));  in __write_initial_superblock()
576 	disk_super->magic = cpu_to_le64(THIN_SUPERBLOCK_MAGIC);  in __write_initial_superblock()
577 	disk_super->version = cpu_to_le32(THIN_VERSION);  in __write_initial_superblock()
578 	disk_super->time = 0;  in __write_initial_superblock()
579 	disk_super->trans_id = 0;  in __write_initial_superblock()
580 	disk_super->held_root = 0;  in __write_initial_superblock()
582 	copy_sm_roots(pmd, disk_super);  in __write_initial_superblock()
584 	disk_super->data_mapping_root = cpu_to_le64(pmd->root);  in __write_initial_superblock()
585 	disk_super->device_details_root = cpu_to_le64(pmd->details_root);  in __write_initial_superblock()
586 	disk_super->metadata_block_size = cpu_to_le32(THIN_METADATA_BLOCK_SIZE);  in __write_initial_superblock()
587 	disk_super->metadata_nr_blocks = cpu_to_le64(bdev_size >> SECTOR_TO_BLOCK_SHIFT);  in __write_initial_superblock()
588 	disk_super->data_block_size = cpu_to_le32(pmd->data_block_size);  in __write_initial_superblock()
647 static int __check_incompat_features(struct thin_disk_superblock *disk_super,  in __check_incompat_features()  argument
652 	features = le32_to_cpu(disk_super->incompat_flags) & ~THIN_FEATURE_INCOMPAT_SUPP;  in __check_incompat_features()
665 	features = le32_to_cpu(disk_super->compat_ro_flags) & ~THIN_FEATURE_COMPAT_RO_SUPP;  in __check_incompat_features()
679 	struct thin_disk_superblock *disk_super;  in __open_metadata()  local
688 	disk_super = dm_block_data(sblock);  in __open_metadata()
691 	if (le32_to_cpu(disk_super->data_block_size) != pmd->data_block_size) {  in __open_metadata()
693 		      le32_to_cpu(disk_super->data_block_size),  in __open_metadata()
699 	r = __check_incompat_features(disk_super, pmd);  in __open_metadata()
704 			       disk_super->metadata_space_map_root,  in __open_metadata()
705 			       sizeof(disk_super->metadata_space_map_root),  in __open_metadata()
712 	pmd->data_sm = dm_sm_disk_open(pmd->tm, disk_super->data_space_map_root,  in __open_metadata()
713 				       sizeof(disk_super->data_space_map_root));  in __open_metadata()
791 	struct thin_disk_superblock *disk_super;  in __begin_transaction()  local
803 	disk_super = dm_block_data(sblock);  in __begin_transaction()
804 	pmd->time = le32_to_cpu(disk_super->time);  in __begin_transaction()
805 	pmd->root = le64_to_cpu(disk_super->data_mapping_root);  in __begin_transaction()
806 	pmd->details_root = le64_to_cpu(disk_super->device_details_root);  in __begin_transaction()
807 	pmd->trans_id = le64_to_cpu(disk_super->trans_id);  in __begin_transaction()
808 	pmd->flags = le32_to_cpu(disk_super->flags);  in __begin_transaction()
809 	pmd->data_block_size = le32_to_cpu(disk_super->data_block_size);  in __begin_transaction()
853 	struct thin_disk_superblock *disk_super;  in __commit_transaction()  local
893 	disk_super = dm_block_data(sblock);  in __commit_transaction()
894 	disk_super->time = cpu_to_le32(pmd->time);  in __commit_transaction()
895 	disk_super->data_mapping_root = cpu_to_le64(pmd->root);  in __commit_transaction()
896 	disk_super->device_details_root = cpu_to_le64(pmd->details_root);  in __commit_transaction()
897 	disk_super->trans_id = cpu_to_le64(pmd->trans_id);  in __commit_transaction()
898 	disk_super->flags = cpu_to_le32(pmd->flags);  in __commit_transaction()
900 	copy_sm_roots(pmd, disk_super);  in __commit_transaction()
1302 	struct thin_disk_superblock *disk_super;  in __reserve_metadata_snap()  local
1329 	disk_super = dm_block_data(copy);  in __reserve_metadata_snap()
1331 	if (le64_to_cpu(disk_super->held_root)) {  in __reserve_metadata_snap()
1342 	memset(&disk_super->data_space_map_root, 0,  in __reserve_metadata_snap()
1343 	       sizeof(disk_super->data_space_map_root));  in __reserve_metadata_snap()
1344 	memset(&disk_super->metadata_space_map_root, 0,  in __reserve_metadata_snap()
1345 	       sizeof(disk_super->metadata_space_map_root));  in __reserve_metadata_snap()
1350 	dm_tm_inc(pmd->tm, le64_to_cpu(disk_super->data_mapping_root));  in __reserve_metadata_snap()
1351 	dm_tm_inc(pmd->tm, le64_to_cpu(disk_super->device_details_root));  in __reserve_metadata_snap()
1363 	disk_super = dm_block_data(sblock);  in __reserve_metadata_snap()
1364 	disk_super->held_root = cpu_to_le64(held_root);  in __reserve_metadata_snap()
1384 	struct thin_disk_superblock *disk_super;  in __release_metadata_snap()  local
1392 	disk_super = dm_block_data(sblock);  in __release_metadata_snap()
1393 	held_root = le64_to_cpu(disk_super->held_root);  in __release_metadata_snap()
1394 	disk_super->held_root = cpu_to_le64(0);  in __release_metadata_snap()
1407 	disk_super = dm_block_data(copy);  in __release_metadata_snap()
1408 	dm_btree_del(&pmd->info, le64_to_cpu(disk_super->data_mapping_root));  in __release_metadata_snap()
1409 	dm_btree_del(&pmd->details_info, le64_to_cpu(disk_super->device_details_root));  in __release_metadata_snap()
1433 	struct thin_disk_superblock *disk_super;  in __get_metadata_snap()  local
1441 	disk_super = dm_block_data(sblock);  in __get_metadata_snap()
1442 	*result = le64_to_cpu(disk_super->held_root);  in __get_metadata_snap()
2074 	struct thin_disk_superblock *disk_super;  in dm_pool_metadata_set_needs_check()  local
2088 	disk_super = dm_block_data(sblock);  in dm_pool_metadata_set_needs_check()
2089 	disk_super->flags = cpu_to_le32(pmd->flags);  in dm_pool_metadata_set_needs_check()