742 	struct dm_thin_device *td, *tmp;  in __write_changed_details()  local
746 	list_for_each_entry_safe(td, tmp, &pmd->thin_devices, list) {  in __write_changed_details()
747 		if (!td->changed)  in __write_changed_details()
750 		key = td->id;  in __write_changed_details()
752 		details.mapped_blocks = cpu_to_le64(td->mapped_blocks);  in __write_changed_details()
753 		details.transaction_id = cpu_to_le64(td->transaction_id);  in __write_changed_details()
754 		details.creation_time = cpu_to_le32(td->creation_time);  in __write_changed_details()
755 		details.snapshotted_time = cpu_to_le32(td->snapshotted_time);  in __write_changed_details()
763 		if (td->open_count)  in __write_changed_details()
764 			td->changed = 0;  in __write_changed_details()
766 			list_del(&td->list);  in __write_changed_details()
767 			kfree(td);  in __write_changed_details()
866 	struct dm_thin_device *td, *tmp;  in dm_pool_metadata_close()  local
869 	list_for_each_entry_safe(td, tmp, &pmd->thin_devices, list) {  in dm_pool_metadata_close()
870 		if (td->open_count)  in dm_pool_metadata_close()
873 			list_del(&td->list);  in dm_pool_metadata_close()
874 			kfree(td);  in dm_pool_metadata_close()
906 			 struct dm_thin_device **td)  in __open_device()  argument
925 			*td = td2;  in __open_device()
948 	*td = kmalloc(sizeof(**td), GFP_NOIO);  in __open_device()
949 	if (!*td)  in __open_device()
952 	(*td)->pmd = pmd;  in __open_device()
953 	(*td)->id = dev;  in __open_device()
954 	(*td)->open_count = 1;  in __open_device()
955 	(*td)->changed = changed;  in __open_device()
956 	(*td)->aborted_with_changes = false;  in __open_device()
957 	(*td)->mapped_blocks = le64_to_cpu(details_le.mapped_blocks);  in __open_device()
958 	(*td)->transaction_id = le64_to_cpu(details_le.transaction_id);  in __open_device()
959 	(*td)->creation_time = le32_to_cpu(details_le.creation_time);  in __open_device()
960 	(*td)->snapshotted_time = le32_to_cpu(details_le.snapshotted_time);  in __open_device()
962 	list_add(&(*td)->list, &pmd->thin_devices);  in __open_device()
967 static void __close_device(struct dm_thin_device *td)  in __close_device()  argument
969 	--td->open_count;  in __close_device()
979 	struct dm_thin_device *td;  in __create_thin()  local
1005 	r = __open_device(pmd, dev, 1, &td);  in __create_thin()
1011 	__close_device(td);  in __create_thin()
1033 	struct dm_thin_device *td;  in __set_snapshot_details()  local
1035 	r = __open_device(pmd, origin, 0, &td);  in __set_snapshot_details()
1039 	td->changed = 1;  in __set_snapshot_details()
1040 	td->snapshotted_time = time;  in __set_snapshot_details()
1042 	snap->mapped_blocks = td->mapped_blocks;  in __set_snapshot_details()
1044 	__close_device(td);  in __set_snapshot_details()
1055 	struct dm_thin_device *td;  in __create_snap()  local
1086 	r = __open_device(pmd, dev, 1, &td);  in __create_snap()
1090 	r = __set_snapshot_details(pmd, td, origin, pmd->time);  in __create_snap()
1091 	__close_device(td);  in __create_snap()
1123 	struct dm_thin_device *td;  in __delete_device()  local
1126 	r = __open_device(pmd, dev, 0, &td);  in __delete_device()
1130 	if (td->open_count > 1) {  in __delete_device()
1131 		__close_device(td);  in __delete_device()
1135 	list_del(&td->list);  in __delete_device()
1136 	kfree(td);  in __delete_device()
1361 			     struct dm_thin_device **td)  in dm_pool_open_thin_device()  argument
1367 		r = __open_device(pmd, dev, 0, td);  in dm_pool_open_thin_device()
1373 int dm_pool_close_thin_device(struct dm_thin_device *td)  in dm_pool_close_thin_device()  argument
1375 	down_write(&td->pmd->root_lock);  in dm_pool_close_thin_device()
1376 	__close_device(td);  in dm_pool_close_thin_device()
1377 	up_write(&td->pmd->root_lock);  in dm_pool_close_thin_device()
1382 dm_thin_id dm_thin_dev_id(struct dm_thin_device *td)  in dm_thin_dev_id()  argument
1384 	return td->id;  in dm_thin_dev_id()
1393 static bool __snapshotted_since(struct dm_thin_device *td, uint32_t time)  in __snapshotted_since()  argument
1395 	return td->snapshotted_time > time;  in __snapshotted_since()
1398 int dm_thin_find_block(struct dm_thin_device *td, dm_block_t block,  in dm_thin_find_block()  argument
1403 	struct dm_pool_metadata *pmd = td->pmd;  in dm_thin_find_block()
1404 	dm_block_t keys[2] = { td->id, block };  in dm_thin_find_block()
1428 		result->shared = __snapshotted_since(td, exception_time);  in dm_thin_find_block()
1436 int dm_thin_find_mapped_range(struct dm_thin_device *td,  in dm_thin_find_mapped_range()  argument
1452 		r = dm_thin_find_block(td, begin, true, &lookup);  in dm_thin_find_mapped_range()
1472 		r = dm_thin_find_block(td, begin, true, &lookup);  in dm_thin_find_mapped_range()
1492 static int __insert(struct dm_thin_device *td, dm_block_t block,  in __insert()  argument
1497 	struct dm_pool_metadata *pmd = td->pmd;  in __insert()
1498 	dm_block_t keys[2] = { td->id, block };  in __insert()
1508 	td->changed = 1;  in __insert()
1510 		td->mapped_blocks++;  in __insert()
1515 int dm_thin_insert_block(struct dm_thin_device *td, dm_block_t block,  in dm_thin_insert_block()  argument
1520 	down_write(&td->pmd->root_lock);  in dm_thin_insert_block()
1521 	if (!td->pmd->fail_io)  in dm_thin_insert_block()
1522 		r = __insert(td, block, data_block);  in dm_thin_insert_block()
1523 	up_write(&td->pmd->root_lock);  in dm_thin_insert_block()
1528 static int __remove(struct dm_thin_device *td, dm_block_t block)  in __remove()  argument
1531 	struct dm_pool_metadata *pmd = td->pmd;  in __remove()
1532 	dm_block_t keys[2] = { td->id, block };  in __remove()
1538 	td->mapped_blocks--;  in __remove()
1539 	td->changed = 1;  in __remove()
1544 static int __remove_range(struct dm_thin_device *td, dm_block_t begin, dm_block_t end)  in __remove_range()  argument
1548 	struct dm_pool_metadata *pmd = td->pmd;  in __remove_range()
1549 	dm_block_t keys[1] = { td->id };  in __remove_range()
1592 	td->mapped_blocks -= total_count;  in __remove_range()
1593 	td->changed = 1;  in __remove_range()
1603 int dm_thin_remove_block(struct dm_thin_device *td, dm_block_t block)  in dm_thin_remove_block()  argument
1607 	down_write(&td->pmd->root_lock);  in dm_thin_remove_block()
1608 	if (!td->pmd->fail_io)  in dm_thin_remove_block()
1609 		r = __remove(td, block);  in dm_thin_remove_block()
1610 	up_write(&td->pmd->root_lock);  in dm_thin_remove_block()
1615 int dm_thin_remove_range(struct dm_thin_device *td,  in dm_thin_remove_range()  argument
1620 	down_write(&td->pmd->root_lock);  in dm_thin_remove_range()
1621 	if (!td->pmd->fail_io)  in dm_thin_remove_range()
1622 		r = __remove_range(td, begin, end);  in dm_thin_remove_range()
1623 	up_write(&td->pmd->root_lock);  in dm_thin_remove_range()
1642 bool dm_thin_changed_this_transaction(struct dm_thin_device *td)  in dm_thin_changed_this_transaction()  argument
1646 	down_read(&td->pmd->root_lock);  in dm_thin_changed_this_transaction()
1647 	r = td->changed;  in dm_thin_changed_this_transaction()
1648 	up_read(&td->pmd->root_lock);  in dm_thin_changed_this_transaction()
1656 	struct dm_thin_device *td, *tmp;  in dm_pool_changed_this_transaction()  local
1659 	list_for_each_entry_safe(td, tmp, &pmd->thin_devices, list) {  in dm_pool_changed_this_transaction()
1660 		if (td->changed) {  in dm_pool_changed_this_transaction()
1661 			r = td->changed;  in dm_pool_changed_this_transaction()
1670 bool dm_thin_aborted_changes(struct dm_thin_device *td)  in dm_thin_aborted_changes()  argument
1674 	down_read(&td->pmd->root_lock);  in dm_thin_aborted_changes()
1675 	r = td->aborted_with_changes;  in dm_thin_aborted_changes()
1676 	up_read(&td->pmd->root_lock);  in dm_thin_aborted_changes()
1716 	struct dm_thin_device *td;  in __set_abort_with_changes_flags()  local
1718 	list_for_each_entry(td, &pmd->thin_devices, list)  in __set_abort_with_changes_flags()
1719 		td->aborted_with_changes = td->changed;  in __set_abort_with_changes_flags()
1792 int dm_thin_get_mapped_count(struct dm_thin_device *td, dm_block_t *result)  in dm_thin_get_mapped_count()  argument
1795 	struct dm_pool_metadata *pmd = td->pmd;  in dm_thin_get_mapped_count()
1799 		*result = td->mapped_blocks;  in dm_thin_get_mapped_count()
1807 static int __highest_block(struct dm_thin_device *td, dm_block_t *result)  in __highest_block()  argument
1812 	struct dm_pool_metadata *pmd = td->pmd;  in __highest_block()
1814 	r = dm_btree_lookup(&pmd->tl_info, pmd->root, &td->id, &value_le);  in __highest_block()
1823 int dm_thin_get_highest_mapped_block(struct dm_thin_device *td,  in dm_thin_get_highest_mapped_block()  argument
1827 	struct dm_pool_metadata *pmd = td->pmd;  in dm_thin_get_highest_mapped_block()
1831 		r = __highest_block(td, result);  in dm_thin_get_highest_mapped_block()