1 /* 2 * Copyright (C) 2011 Red Hat, Inc. 3 * 4 * This file is released under the GPL. 5 */ 6 7 #ifndef DM_SPACE_MAP_METADATA_H 8 #define DM_SPACE_MAP_METADATA_H 9 10 #include "dm-transaction-manager.h" 11 12 /* 13 * Unfortunately we have to use two-phase construction due to the cycle 14 * between the tm and sm. 15 */ 16 struct dm_space_map *dm_sm_metadata_init(void); 17 18 /* 19 * Create a fresh space map. 20 */ 21 int dm_sm_metadata_create(struct dm_space_map *sm, 22 struct dm_transaction_manager *tm, 23 dm_block_t nr_blocks, 24 dm_block_t superblock); 25 26 /* 27 * Open from a previously-recorded root. 28 */ 29 int dm_sm_metadata_open(struct dm_space_map *sm, 30 struct dm_transaction_manager *tm, 31 void *root_le, size_t len); 32 33 #endif /* DM_SPACE_MAP_METADATA_H */ 34