Lines Matching refs:pmd
230 struct dm_pool_metadata *pmd; member
390 static inline void __pmd_write_lock(struct dm_pool_metadata *pmd) in __pmd_write_lock() argument
391 __acquires(pmd->root_lock) in __pmd_write_lock()
393 down_write(&pmd->root_lock); in __pmd_write_lock()
395 #define pmd_write_lock_in_core(pmd) __pmd_write_lock((pmd)) argument
397 static inline void pmd_write_lock(struct dm_pool_metadata *pmd) in pmd_write_lock() argument
399 __pmd_write_lock(pmd); in pmd_write_lock()
400 if (unlikely(!pmd->in_service)) in pmd_write_lock()
401 pmd->in_service = true; in pmd_write_lock()
404 static inline void pmd_write_unlock(struct dm_pool_metadata *pmd) in pmd_write_unlock() argument
405 __releases(pmd->root_lock) in pmd_write_unlock()
407 up_write(&pmd->root_lock); in pmd_write_unlock()
412 static int superblock_lock_zero(struct dm_pool_metadata *pmd, in superblock_lock_zero() argument
415 return dm_bm_write_lock_zero(pmd->bm, THIN_SUPERBLOCK_LOCATION, in superblock_lock_zero()
419 static int superblock_lock(struct dm_pool_metadata *pmd, in superblock_lock() argument
422 return dm_bm_write_lock(pmd->bm, THIN_SUPERBLOCK_LOCATION, in superblock_lock()
455 static void __setup_btree_details(struct dm_pool_metadata *pmd) in __setup_btree_details() argument
457 pmd->info.tm = pmd->tm; in __setup_btree_details()
458 pmd->info.levels = 2; in __setup_btree_details()
459 pmd->info.value_type.context = pmd->data_sm; in __setup_btree_details()
460 pmd->info.value_type.size = sizeof(__le64); in __setup_btree_details()
461 pmd->info.value_type.inc = data_block_inc; in __setup_btree_details()
462 pmd->info.value_type.dec = data_block_dec; in __setup_btree_details()
463 pmd->info.value_type.equal = data_block_equal; in __setup_btree_details()
465 memcpy(&pmd->nb_info, &pmd->info, sizeof(pmd->nb_info)); in __setup_btree_details()
466 pmd->nb_info.tm = pmd->nb_tm; in __setup_btree_details()
468 pmd->tl_info.tm = pmd->tm; in __setup_btree_details()
469 pmd->tl_info.levels = 1; in __setup_btree_details()
470 pmd->tl_info.value_type.context = &pmd->bl_info; in __setup_btree_details()
471 pmd->tl_info.value_type.size = sizeof(__le64); in __setup_btree_details()
472 pmd->tl_info.value_type.inc = subtree_inc; in __setup_btree_details()
473 pmd->tl_info.value_type.dec = subtree_dec; in __setup_btree_details()
474 pmd->tl_info.value_type.equal = subtree_equal; in __setup_btree_details()
476 pmd->bl_info.tm = pmd->tm; in __setup_btree_details()
477 pmd->bl_info.levels = 1; in __setup_btree_details()
478 pmd->bl_info.value_type.context = pmd->data_sm; in __setup_btree_details()
479 pmd->bl_info.value_type.size = sizeof(__le64); in __setup_btree_details()
480 pmd->bl_info.value_type.inc = data_block_inc; in __setup_btree_details()
481 pmd->bl_info.value_type.dec = data_block_dec; in __setup_btree_details()
482 pmd->bl_info.value_type.equal = data_block_equal; in __setup_btree_details()
484 pmd->details_info.tm = pmd->tm; in __setup_btree_details()
485 pmd->details_info.levels = 1; in __setup_btree_details()
486 pmd->details_info.value_type.context = NULL; in __setup_btree_details()
487 pmd->details_info.value_type.size = sizeof(struct disk_device_details); in __setup_btree_details()
488 pmd->details_info.value_type.inc = NULL; in __setup_btree_details()
489 pmd->details_info.value_type.dec = NULL; in __setup_btree_details()
490 pmd->details_info.value_type.equal = NULL; in __setup_btree_details()
493 static int save_sm_roots(struct dm_pool_metadata *pmd) in save_sm_roots() argument
498 r = dm_sm_root_size(pmd->metadata_sm, &len); in save_sm_roots()
502 r = dm_sm_copy_root(pmd->metadata_sm, &pmd->metadata_space_map_root, len); in save_sm_roots()
506 r = dm_sm_root_size(pmd->data_sm, &len); in save_sm_roots()
510 return dm_sm_copy_root(pmd->data_sm, &pmd->data_space_map_root, len); in save_sm_roots()
513 static void copy_sm_roots(struct dm_pool_metadata *pmd, in copy_sm_roots() argument
517 &pmd->metadata_space_map_root, in copy_sm_roots()
518 sizeof(pmd->metadata_space_map_root)); in copy_sm_roots()
521 &pmd->data_space_map_root, in copy_sm_roots()
522 sizeof(pmd->data_space_map_root)); in copy_sm_roots()
525 static int __write_initial_superblock(struct dm_pool_metadata *pmd) in __write_initial_superblock() argument
530 sector_t bdev_size = i_size_read(pmd->bdev->bd_inode) >> SECTOR_SHIFT; in __write_initial_superblock()
535 r = dm_sm_commit(pmd->data_sm); in __write_initial_superblock()
539 r = dm_tm_pre_commit(pmd->tm); in __write_initial_superblock()
543 r = save_sm_roots(pmd); in __write_initial_superblock()
547 r = superblock_lock_zero(pmd, &sblock); in __write_initial_superblock()
560 copy_sm_roots(pmd, disk_super); in __write_initial_superblock()
562 disk_super->data_mapping_root = cpu_to_le64(pmd->root); in __write_initial_superblock()
563 disk_super->device_details_root = cpu_to_le64(pmd->details_root); in __write_initial_superblock()
566 disk_super->data_block_size = cpu_to_le32(pmd->data_block_size); in __write_initial_superblock()
568 return dm_tm_commit(pmd->tm, sblock); in __write_initial_superblock()
571 static int __format_metadata(struct dm_pool_metadata *pmd) in __format_metadata() argument
575 r = dm_tm_create_with_sm(pmd->bm, THIN_SUPERBLOCK_LOCATION, in __format_metadata()
576 &pmd->tm, &pmd->metadata_sm); in __format_metadata()
582 pmd->data_sm = dm_sm_disk_create(pmd->tm, 0); in __format_metadata()
583 if (IS_ERR(pmd->data_sm)) { in __format_metadata()
585 r = PTR_ERR(pmd->data_sm); in __format_metadata()
589 pmd->nb_tm = dm_tm_create_non_blocking_clone(pmd->tm); in __format_metadata()
590 if (!pmd->nb_tm) { in __format_metadata()
596 __setup_btree_details(pmd); in __format_metadata()
598 r = dm_btree_empty(&pmd->info, &pmd->root); in __format_metadata()
602 r = dm_btree_empty(&pmd->details_info, &pmd->details_root); in __format_metadata()
608 r = __write_initial_superblock(pmd); in __format_metadata()
615 dm_tm_destroy(pmd->nb_tm); in __format_metadata()
617 dm_sm_destroy(pmd->data_sm); in __format_metadata()
619 dm_tm_destroy(pmd->tm); in __format_metadata()
620 dm_sm_destroy(pmd->metadata_sm); in __format_metadata()
626 struct dm_pool_metadata *pmd) in __check_incompat_features() argument
640 if (get_disk_ro(pmd->bdev->bd_disk)) in __check_incompat_features()
653 static int __open_metadata(struct dm_pool_metadata *pmd) in __open_metadata() argument
659 r = dm_bm_read_lock(pmd->bm, THIN_SUPERBLOCK_LOCATION, in __open_metadata()
669 if (le32_to_cpu(disk_super->data_block_size) != pmd->data_block_size) { in __open_metadata()
672 (unsigned long long)pmd->data_block_size); in __open_metadata()
677 r = __check_incompat_features(disk_super, pmd); in __open_metadata()
681 r = dm_tm_open_with_sm(pmd->bm, THIN_SUPERBLOCK_LOCATION, in __open_metadata()
684 &pmd->tm, &pmd->metadata_sm); in __open_metadata()
690 pmd->data_sm = dm_sm_disk_open(pmd->tm, disk_super->data_space_map_root, in __open_metadata()
692 if (IS_ERR(pmd->data_sm)) { in __open_metadata()
694 r = PTR_ERR(pmd->data_sm); in __open_metadata()
698 pmd->nb_tm = dm_tm_create_non_blocking_clone(pmd->tm); in __open_metadata()
699 if (!pmd->nb_tm) { in __open_metadata()
705 __setup_btree_details(pmd); in __open_metadata()
711 dm_sm_destroy(pmd->data_sm); in __open_metadata()
713 dm_tm_destroy(pmd->tm); in __open_metadata()
714 dm_sm_destroy(pmd->metadata_sm); in __open_metadata()
721 static int __open_or_format_metadata(struct dm_pool_metadata *pmd, bool format_device) in __open_or_format_metadata() argument
725 r = __superblock_all_zeroes(pmd->bm, &unformatted); in __open_or_format_metadata()
730 return format_device ? __format_metadata(pmd) : -EPERM; in __open_or_format_metadata()
732 return __open_metadata(pmd); in __open_or_format_metadata()
735 static int __create_persistent_data_objects(struct dm_pool_metadata *pmd, bool format_device) in __create_persistent_data_objects() argument
739 pmd->bm = dm_block_manager_create(pmd->bdev, THIN_METADATA_BLOCK_SIZE << SECTOR_SHIFT, in __create_persistent_data_objects()
741 if (IS_ERR(pmd->bm)) { in __create_persistent_data_objects()
743 return PTR_ERR(pmd->bm); in __create_persistent_data_objects()
746 r = __open_or_format_metadata(pmd, format_device); in __create_persistent_data_objects()
748 dm_block_manager_destroy(pmd->bm); in __create_persistent_data_objects()
753 static void __destroy_persistent_data_objects(struct dm_pool_metadata *pmd) in __destroy_persistent_data_objects() argument
755 dm_sm_destroy(pmd->data_sm); in __destroy_persistent_data_objects()
756 dm_sm_destroy(pmd->metadata_sm); in __destroy_persistent_data_objects()
757 dm_tm_destroy(pmd->nb_tm); in __destroy_persistent_data_objects()
758 dm_tm_destroy(pmd->tm); in __destroy_persistent_data_objects()
759 dm_block_manager_destroy(pmd->bm); in __destroy_persistent_data_objects()
762 static int __begin_transaction(struct dm_pool_metadata *pmd) in __begin_transaction() argument
772 r = dm_bm_read_lock(pmd->bm, THIN_SUPERBLOCK_LOCATION, in __begin_transaction()
778 pmd->time = le32_to_cpu(disk_super->time); in __begin_transaction()
779 pmd->root = le64_to_cpu(disk_super->data_mapping_root); in __begin_transaction()
780 pmd->details_root = le64_to_cpu(disk_super->device_details_root); in __begin_transaction()
781 pmd->trans_id = le64_to_cpu(disk_super->trans_id); in __begin_transaction()
782 pmd->flags = le32_to_cpu(disk_super->flags); in __begin_transaction()
783 pmd->data_block_size = le32_to_cpu(disk_super->data_block_size); in __begin_transaction()
789 static int __write_changed_details(struct dm_pool_metadata *pmd) in __write_changed_details() argument
796 list_for_each_entry_safe(td, tmp, &pmd->thin_devices, list) { in __write_changed_details()
808 r = dm_btree_insert(&pmd->details_info, pmd->details_root, in __write_changed_details()
809 &key, &details, &pmd->details_root); in __write_changed_details()
824 static int __commit_transaction(struct dm_pool_metadata *pmd) in __commit_transaction() argument
835 if (unlikely(!pmd->in_service)) in __commit_transaction()
838 if (pmd->pre_commit_fn) { in __commit_transaction()
839 r = pmd->pre_commit_fn(pmd->pre_commit_context); in __commit_transaction()
846 r = __write_changed_details(pmd); in __commit_transaction()
850 r = dm_sm_commit(pmd->data_sm); in __commit_transaction()
854 r = dm_tm_pre_commit(pmd->tm); in __commit_transaction()
858 r = save_sm_roots(pmd); in __commit_transaction()
862 r = superblock_lock(pmd, &sblock); in __commit_transaction()
867 disk_super->time = cpu_to_le32(pmd->time); in __commit_transaction()
868 disk_super->data_mapping_root = cpu_to_le64(pmd->root); in __commit_transaction()
869 disk_super->device_details_root = cpu_to_le64(pmd->details_root); in __commit_transaction()
870 disk_super->trans_id = cpu_to_le64(pmd->trans_id); in __commit_transaction()
871 disk_super->flags = cpu_to_le32(pmd->flags); in __commit_transaction()
873 copy_sm_roots(pmd, disk_super); in __commit_transaction()
875 return dm_tm_commit(pmd->tm, sblock); in __commit_transaction()
878 static void __set_metadata_reserve(struct dm_pool_metadata *pmd) in __set_metadata_reserve() argument
884 r = dm_sm_get_nr_blocks(pmd->metadata_sm, &total); in __set_metadata_reserve()
887 pmd->metadata_reserve = max_blocks; in __set_metadata_reserve()
889 pmd->metadata_reserve = min(max_blocks, div_u64(total, 10)); in __set_metadata_reserve()
897 struct dm_pool_metadata *pmd; in dm_pool_metadata_open() local
899 pmd = kmalloc(sizeof(*pmd), GFP_KERNEL); in dm_pool_metadata_open()
900 if (!pmd) { in dm_pool_metadata_open()
905 init_rwsem(&pmd->root_lock); in dm_pool_metadata_open()
906 pmd->time = 0; in dm_pool_metadata_open()
907 INIT_LIST_HEAD(&pmd->thin_devices); in dm_pool_metadata_open()
908 pmd->fail_io = false; in dm_pool_metadata_open()
909 pmd->in_service = false; in dm_pool_metadata_open()
910 pmd->bdev = bdev; in dm_pool_metadata_open()
911 pmd->data_block_size = data_block_size; in dm_pool_metadata_open()
912 pmd->pre_commit_fn = NULL; in dm_pool_metadata_open()
913 pmd->pre_commit_context = NULL; in dm_pool_metadata_open()
915 r = __create_persistent_data_objects(pmd, format_device); in dm_pool_metadata_open()
917 kfree(pmd); in dm_pool_metadata_open()
921 r = __begin_transaction(pmd); in dm_pool_metadata_open()
923 if (dm_pool_metadata_close(pmd) < 0) in dm_pool_metadata_open()
928 __set_metadata_reserve(pmd); in dm_pool_metadata_open()
930 return pmd; in dm_pool_metadata_open()
933 int dm_pool_metadata_close(struct dm_pool_metadata *pmd) in dm_pool_metadata_close() argument
939 down_read(&pmd->root_lock); in dm_pool_metadata_close()
940 list_for_each_entry_safe(td, tmp, &pmd->thin_devices, list) { in dm_pool_metadata_close()
948 up_read(&pmd->root_lock); in dm_pool_metadata_close()
956 if (!dm_bm_is_read_only(pmd->bm) && !pmd->fail_io) { in dm_pool_metadata_close()
957 r = __commit_transaction(pmd); in dm_pool_metadata_close()
962 if (!pmd->fail_io) in dm_pool_metadata_close()
963 __destroy_persistent_data_objects(pmd); in dm_pool_metadata_close()
965 kfree(pmd); in dm_pool_metadata_close()
974 static int __open_device(struct dm_pool_metadata *pmd, in __open_device() argument
986 list_for_each_entry(td2, &pmd->thin_devices, list) in __open_device()
1002 r = dm_btree_lookup(&pmd->details_info, pmd->details_root, in __open_device()
1013 details_le.transaction_id = cpu_to_le64(pmd->trans_id); in __open_device()
1014 details_le.creation_time = cpu_to_le32(pmd->time); in __open_device()
1015 details_le.snapshotted_time = cpu_to_le32(pmd->time); in __open_device()
1022 (*td)->pmd = pmd; in __open_device()
1032 list_add(&(*td)->list, &pmd->thin_devices); in __open_device()
1042 static int __create_thin(struct dm_pool_metadata *pmd, in __create_thin() argument
1052 r = dm_btree_lookup(&pmd->details_info, pmd->details_root, in __create_thin()
1060 r = dm_btree_empty(&pmd->bl_info, &dev_root); in __create_thin()
1069 r = dm_btree_insert(&pmd->tl_info, pmd->root, &key, &value, &pmd->root); in __create_thin()
1071 dm_btree_del(&pmd->bl_info, dev_root); in __create_thin()
1075 r = __open_device(pmd, dev, 1, &td); in __create_thin()
1077 dm_btree_remove(&pmd->tl_info, pmd->root, &key, &pmd->root); in __create_thin()
1078 dm_btree_del(&pmd->bl_info, dev_root); in __create_thin()
1086 int dm_pool_create_thin(struct dm_pool_metadata *pmd, dm_thin_id dev) in dm_pool_create_thin() argument
1090 pmd_write_lock(pmd); in dm_pool_create_thin()
1091 if (!pmd->fail_io) in dm_pool_create_thin()
1092 r = __create_thin(pmd, dev); in dm_pool_create_thin()
1093 pmd_write_unlock(pmd); in dm_pool_create_thin()
1098 static int __set_snapshot_details(struct dm_pool_metadata *pmd, in __set_snapshot_details() argument
1105 r = __open_device(pmd, origin, 0, &td); in __set_snapshot_details()
1119 static int __create_snap(struct dm_pool_metadata *pmd, in __create_snap() argument
1130 r = dm_btree_lookup(&pmd->details_info, pmd->details_root, in __create_snap()
1136 r = dm_btree_lookup(&pmd->tl_info, pmd->root, &key, &value); in __create_snap()
1142 dm_tm_inc(pmd->tm, origin_root); in __create_snap()
1148 r = dm_btree_insert(&pmd->tl_info, pmd->root, &key, &value, &pmd->root); in __create_snap()
1150 dm_tm_dec(pmd->tm, origin_root); in __create_snap()
1154 pmd->time++; in __create_snap()
1156 r = __open_device(pmd, dev, 1, &td); in __create_snap()
1160 r = __set_snapshot_details(pmd, td, origin, pmd->time); in __create_snap()
1169 dm_btree_remove(&pmd->tl_info, pmd->root, &key, &pmd->root); in __create_snap()
1170 dm_btree_remove(&pmd->details_info, pmd->details_root, in __create_snap()
1171 &key, &pmd->details_root); in __create_snap()
1175 int dm_pool_create_snap(struct dm_pool_metadata *pmd, in dm_pool_create_snap() argument
1181 pmd_write_lock(pmd); in dm_pool_create_snap()
1182 if (!pmd->fail_io) in dm_pool_create_snap()
1183 r = __create_snap(pmd, dev, origin); in dm_pool_create_snap()
1184 pmd_write_unlock(pmd); in dm_pool_create_snap()
1189 static int __delete_device(struct dm_pool_metadata *pmd, dm_thin_id dev) in __delete_device() argument
1196 r = __open_device(pmd, dev, 0, &td); in __delete_device()
1207 r = dm_btree_remove(&pmd->details_info, pmd->details_root, in __delete_device()
1208 &key, &pmd->details_root); in __delete_device()
1212 r = dm_btree_remove(&pmd->tl_info, pmd->root, &key, &pmd->root); in __delete_device()
1219 int dm_pool_delete_thin_device(struct dm_pool_metadata *pmd, in dm_pool_delete_thin_device() argument
1224 pmd_write_lock(pmd); in dm_pool_delete_thin_device()
1225 if (!pmd->fail_io) in dm_pool_delete_thin_device()
1226 r = __delete_device(pmd, dev); in dm_pool_delete_thin_device()
1227 pmd_write_unlock(pmd); in dm_pool_delete_thin_device()
1232 int dm_pool_set_metadata_transaction_id(struct dm_pool_metadata *pmd, in dm_pool_set_metadata_transaction_id() argument
1238 pmd_write_lock(pmd); in dm_pool_set_metadata_transaction_id()
1240 if (pmd->fail_io) in dm_pool_set_metadata_transaction_id()
1243 if (pmd->trans_id != current_id) { in dm_pool_set_metadata_transaction_id()
1248 pmd->trans_id = new_id; in dm_pool_set_metadata_transaction_id()
1252 pmd_write_unlock(pmd); in dm_pool_set_metadata_transaction_id()
1257 int dm_pool_get_metadata_transaction_id(struct dm_pool_metadata *pmd, in dm_pool_get_metadata_transaction_id() argument
1262 down_read(&pmd->root_lock); in dm_pool_get_metadata_transaction_id()
1263 if (!pmd->fail_io) { in dm_pool_get_metadata_transaction_id()
1264 *result = pmd->trans_id; in dm_pool_get_metadata_transaction_id()
1267 up_read(&pmd->root_lock); in dm_pool_get_metadata_transaction_id()
1272 static int __reserve_metadata_snap(struct dm_pool_metadata *pmd) in __reserve_metadata_snap() argument
1283 r = __commit_transaction(pmd); in __reserve_metadata_snap()
1293 dm_sm_inc_block(pmd->metadata_sm, THIN_SUPERBLOCK_LOCATION); in __reserve_metadata_snap()
1294 r = dm_tm_shadow_block(pmd->tm, THIN_SUPERBLOCK_LOCATION, in __reserve_metadata_snap()
1307 dm_tm_dec(pmd->tm, held_root); in __reserve_metadata_snap()
1308 dm_tm_unlock(pmd->tm, copy); in __reserve_metadata_snap()
1323 dm_tm_inc(pmd->tm, le64_to_cpu(disk_super->data_mapping_root)); in __reserve_metadata_snap()
1324 dm_tm_inc(pmd->tm, le64_to_cpu(disk_super->device_details_root)); in __reserve_metadata_snap()
1325 dm_tm_unlock(pmd->tm, copy); in __reserve_metadata_snap()
1330 r = superblock_lock(pmd, &sblock); in __reserve_metadata_snap()
1332 dm_tm_dec(pmd->tm, held_root); in __reserve_metadata_snap()
1342 int dm_pool_reserve_metadata_snap(struct dm_pool_metadata *pmd) in dm_pool_reserve_metadata_snap() argument
1346 pmd_write_lock(pmd); in dm_pool_reserve_metadata_snap()
1347 if (!pmd->fail_io) in dm_pool_reserve_metadata_snap()
1348 r = __reserve_metadata_snap(pmd); in dm_pool_reserve_metadata_snap()
1349 pmd_write_unlock(pmd); in dm_pool_reserve_metadata_snap()
1354 static int __release_metadata_snap(struct dm_pool_metadata *pmd) in __release_metadata_snap() argument
1361 r = superblock_lock(pmd, &sblock); in __release_metadata_snap()
1376 r = dm_tm_read_lock(pmd->tm, held_root, &sb_validator, ©); in __release_metadata_snap()
1381 dm_btree_del(&pmd->info, le64_to_cpu(disk_super->data_mapping_root)); in __release_metadata_snap()
1382 dm_btree_del(&pmd->details_info, le64_to_cpu(disk_super->device_details_root)); in __release_metadata_snap()
1383 dm_sm_dec_block(pmd->metadata_sm, held_root); in __release_metadata_snap()
1385 dm_tm_unlock(pmd->tm, copy); in __release_metadata_snap()
1390 int dm_pool_release_metadata_snap(struct dm_pool_metadata *pmd) in dm_pool_release_metadata_snap() argument
1394 pmd_write_lock(pmd); in dm_pool_release_metadata_snap()
1395 if (!pmd->fail_io) in dm_pool_release_metadata_snap()
1396 r = __release_metadata_snap(pmd); in dm_pool_release_metadata_snap()
1397 pmd_write_unlock(pmd); in dm_pool_release_metadata_snap()
1402 static int __get_metadata_snap(struct dm_pool_metadata *pmd, in __get_metadata_snap() argument
1409 r = dm_bm_read_lock(pmd->bm, THIN_SUPERBLOCK_LOCATION, in __get_metadata_snap()
1422 int dm_pool_get_metadata_snap(struct dm_pool_metadata *pmd, in dm_pool_get_metadata_snap() argument
1427 down_read(&pmd->root_lock); in dm_pool_get_metadata_snap()
1428 if (!pmd->fail_io) in dm_pool_get_metadata_snap()
1429 r = __get_metadata_snap(pmd, result); in dm_pool_get_metadata_snap()
1430 up_read(&pmd->root_lock); in dm_pool_get_metadata_snap()
1435 int dm_pool_open_thin_device(struct dm_pool_metadata *pmd, dm_thin_id dev, in dm_pool_open_thin_device() argument
1440 pmd_write_lock_in_core(pmd); in dm_pool_open_thin_device()
1441 if (!pmd->fail_io) in dm_pool_open_thin_device()
1442 r = __open_device(pmd, dev, 0, td); in dm_pool_open_thin_device()
1443 pmd_write_unlock(pmd); in dm_pool_open_thin_device()
1450 pmd_write_lock_in_core(td->pmd); in dm_pool_close_thin_device()
1452 pmd_write_unlock(td->pmd); in dm_pool_close_thin_device()
1491 struct dm_pool_metadata *pmd = td->pmd; in __find_block() local
1496 info = &pmd->info; in __find_block()
1498 info = &pmd->nb_info; in __find_block()
1500 r = dm_btree_lookup(info, pmd->root, keys, &value); in __find_block()
1511 struct dm_pool_metadata *pmd = td->pmd; in dm_thin_find_block() local
1513 down_read(&pmd->root_lock); in dm_thin_find_block()
1514 if (pmd->fail_io) { in dm_thin_find_block()
1515 up_read(&pmd->root_lock); in dm_thin_find_block()
1521 up_read(&pmd->root_lock); in dm_thin_find_block()
1531 struct dm_pool_metadata *pmd = td->pmd; in __find_next_mapped_block() local
1534 r = dm_btree_lookup_next(&pmd->info, pmd->root, keys, vblock, &value); in __find_next_mapped_block()
1593 struct dm_pool_metadata *pmd = td->pmd; in dm_thin_find_mapped_range() local
1595 down_read(&pmd->root_lock); in dm_thin_find_mapped_range()
1596 if (!pmd->fail_io) { in dm_thin_find_mapped_range()
1600 up_read(&pmd->root_lock); in dm_thin_find_mapped_range()
1610 struct dm_pool_metadata *pmd = td->pmd; in __insert() local
1613 value = cpu_to_le64(pack_block_time(data_block, pmd->time)); in __insert()
1616 r = dm_btree_insert_notify(&pmd->info, pmd->root, keys, &value, in __insert()
1617 &pmd->root, &inserted); in __insert()
1633 pmd_write_lock(td->pmd); in dm_thin_insert_block()
1634 if (!td->pmd->fail_io) in dm_thin_insert_block()
1636 pmd_write_unlock(td->pmd); in dm_thin_insert_block()
1644 struct dm_pool_metadata *pmd = td->pmd; in __remove() local
1647 r = dm_btree_remove(&pmd->info, pmd->root, keys, &pmd->root); in __remove()
1661 struct dm_pool_metadata *pmd = td->pmd; in __remove_range() local
1669 r = dm_btree_lookup(&pmd->tl_info, pmd->root, keys, &value); in __remove_range()
1678 dm_tm_inc(pmd->tm, mapping_root); in __remove_range()
1679 r = dm_btree_remove(&pmd->tl_info, pmd->root, keys, &pmd->root); in __remove_range()
1688 r = dm_btree_lookup_next(&pmd->bl_info, mapping_root, &begin, &begin, &value); in __remove_range()
1698 r = dm_btree_remove_leaves(&pmd->bl_info, mapping_root, &begin, end, &mapping_root, &count); in __remove_range()
1713 return dm_btree_insert(&pmd->tl_info, pmd->root, keys, &value, &pmd->root); in __remove_range()
1720 pmd_write_lock(td->pmd); in dm_thin_remove_block()
1721 if (!td->pmd->fail_io) in dm_thin_remove_block()
1723 pmd_write_unlock(td->pmd); in dm_thin_remove_block()
1733 pmd_write_lock(td->pmd); in dm_thin_remove_range()
1734 if (!td->pmd->fail_io) in dm_thin_remove_range()
1736 pmd_write_unlock(td->pmd); in dm_thin_remove_range()
1741 int dm_pool_block_is_shared(struct dm_pool_metadata *pmd, dm_block_t b, bool *result) in dm_pool_block_is_shared() argument
1746 down_read(&pmd->root_lock); in dm_pool_block_is_shared()
1747 r = dm_sm_get_count(pmd->data_sm, b, &ref_count); in dm_pool_block_is_shared()
1750 up_read(&pmd->root_lock); in dm_pool_block_is_shared()
1755 int dm_pool_inc_data_range(struct dm_pool_metadata *pmd, dm_block_t b, dm_block_t e) in dm_pool_inc_data_range() argument
1759 pmd_write_lock(pmd); in dm_pool_inc_data_range()
1761 r = dm_sm_inc_block(pmd->data_sm, b); in dm_pool_inc_data_range()
1765 pmd_write_unlock(pmd); in dm_pool_inc_data_range()
1770 int dm_pool_dec_data_range(struct dm_pool_metadata *pmd, dm_block_t b, dm_block_t e) in dm_pool_dec_data_range() argument
1774 pmd_write_lock(pmd); in dm_pool_dec_data_range()
1776 r = dm_sm_dec_block(pmd->data_sm, b); in dm_pool_dec_data_range()
1780 pmd_write_unlock(pmd); in dm_pool_dec_data_range()
1789 down_read(&td->pmd->root_lock); in dm_thin_changed_this_transaction()
1791 up_read(&td->pmd->root_lock); in dm_thin_changed_this_transaction()
1796 bool dm_pool_changed_this_transaction(struct dm_pool_metadata *pmd) in dm_pool_changed_this_transaction() argument
1801 down_read(&pmd->root_lock); in dm_pool_changed_this_transaction()
1802 list_for_each_entry_safe(td, tmp, &pmd->thin_devices, list) { in dm_pool_changed_this_transaction()
1808 up_read(&pmd->root_lock); in dm_pool_changed_this_transaction()
1817 down_read(&td->pmd->root_lock); in dm_thin_aborted_changes()
1819 up_read(&td->pmd->root_lock); in dm_thin_aborted_changes()
1824 int dm_pool_alloc_data_block(struct dm_pool_metadata *pmd, dm_block_t *result) in dm_pool_alloc_data_block() argument
1828 pmd_write_lock(pmd); in dm_pool_alloc_data_block()
1829 if (!pmd->fail_io) in dm_pool_alloc_data_block()
1830 r = dm_sm_new_block(pmd->data_sm, result); in dm_pool_alloc_data_block()
1831 pmd_write_unlock(pmd); in dm_pool_alloc_data_block()
1836 int dm_pool_commit_metadata(struct dm_pool_metadata *pmd) in dm_pool_commit_metadata() argument
1844 __pmd_write_lock(pmd); in dm_pool_commit_metadata()
1845 if (pmd->fail_io) in dm_pool_commit_metadata()
1848 r = __commit_transaction(pmd); in dm_pool_commit_metadata()
1855 r = __begin_transaction(pmd); in dm_pool_commit_metadata()
1857 pmd_write_unlock(pmd); in dm_pool_commit_metadata()
1861 static void __set_abort_with_changes_flags(struct dm_pool_metadata *pmd) in __set_abort_with_changes_flags() argument
1865 list_for_each_entry(td, &pmd->thin_devices, list) in __set_abort_with_changes_flags()
1869 int dm_pool_abort_metadata(struct dm_pool_metadata *pmd) in dm_pool_abort_metadata() argument
1873 pmd_write_lock(pmd); in dm_pool_abort_metadata()
1874 if (pmd->fail_io) in dm_pool_abort_metadata()
1877 __set_abort_with_changes_flags(pmd); in dm_pool_abort_metadata()
1878 __destroy_persistent_data_objects(pmd); in dm_pool_abort_metadata()
1879 r = __create_persistent_data_objects(pmd, false); in dm_pool_abort_metadata()
1881 pmd->fail_io = true; in dm_pool_abort_metadata()
1884 pmd_write_unlock(pmd); in dm_pool_abort_metadata()
1889 int dm_pool_get_free_block_count(struct dm_pool_metadata *pmd, dm_block_t *result) in dm_pool_get_free_block_count() argument
1893 down_read(&pmd->root_lock); in dm_pool_get_free_block_count()
1894 if (!pmd->fail_io) in dm_pool_get_free_block_count()
1895 r = dm_sm_get_nr_free(pmd->data_sm, result); in dm_pool_get_free_block_count()
1896 up_read(&pmd->root_lock); in dm_pool_get_free_block_count()
1901 int dm_pool_get_free_metadata_block_count(struct dm_pool_metadata *pmd, in dm_pool_get_free_metadata_block_count() argument
1906 down_read(&pmd->root_lock); in dm_pool_get_free_metadata_block_count()
1907 if (!pmd->fail_io) in dm_pool_get_free_metadata_block_count()
1908 r = dm_sm_get_nr_free(pmd->metadata_sm, result); in dm_pool_get_free_metadata_block_count()
1911 if (*result < pmd->metadata_reserve) in dm_pool_get_free_metadata_block_count()
1914 *result -= pmd->metadata_reserve; in dm_pool_get_free_metadata_block_count()
1916 up_read(&pmd->root_lock); in dm_pool_get_free_metadata_block_count()
1921 int dm_pool_get_metadata_dev_size(struct dm_pool_metadata *pmd, in dm_pool_get_metadata_dev_size() argument
1926 down_read(&pmd->root_lock); in dm_pool_get_metadata_dev_size()
1927 if (!pmd->fail_io) in dm_pool_get_metadata_dev_size()
1928 r = dm_sm_get_nr_blocks(pmd->metadata_sm, result); in dm_pool_get_metadata_dev_size()
1929 up_read(&pmd->root_lock); in dm_pool_get_metadata_dev_size()
1934 int dm_pool_get_data_dev_size(struct dm_pool_metadata *pmd, dm_block_t *result) in dm_pool_get_data_dev_size() argument
1938 down_read(&pmd->root_lock); in dm_pool_get_data_dev_size()
1939 if (!pmd->fail_io) in dm_pool_get_data_dev_size()
1940 r = dm_sm_get_nr_blocks(pmd->data_sm, result); in dm_pool_get_data_dev_size()
1941 up_read(&pmd->root_lock); in dm_pool_get_data_dev_size()
1949 struct dm_pool_metadata *pmd = td->pmd; in dm_thin_get_mapped_count() local
1951 down_read(&pmd->root_lock); in dm_thin_get_mapped_count()
1952 if (!pmd->fail_io) { in dm_thin_get_mapped_count()
1956 up_read(&pmd->root_lock); in dm_thin_get_mapped_count()
1966 struct dm_pool_metadata *pmd = td->pmd; in __highest_block() local
1968 r = dm_btree_lookup(&pmd->tl_info, pmd->root, &td->id, &value_le); in __highest_block()
1974 return dm_btree_find_highest_key(&pmd->bl_info, thin_root, result); in __highest_block()
1981 struct dm_pool_metadata *pmd = td->pmd; in dm_thin_get_highest_mapped_block() local
1983 down_read(&pmd->root_lock); in dm_thin_get_highest_mapped_block()
1984 if (!pmd->fail_io) in dm_thin_get_highest_mapped_block()
1986 up_read(&pmd->root_lock); in dm_thin_get_highest_mapped_block()
2011 int dm_pool_resize_data_dev(struct dm_pool_metadata *pmd, dm_block_t new_count) in dm_pool_resize_data_dev() argument
2015 pmd_write_lock(pmd); in dm_pool_resize_data_dev()
2016 if (!pmd->fail_io) in dm_pool_resize_data_dev()
2017 r = __resize_space_map(pmd->data_sm, new_count); in dm_pool_resize_data_dev()
2018 pmd_write_unlock(pmd); in dm_pool_resize_data_dev()
2023 int dm_pool_resize_metadata_dev(struct dm_pool_metadata *pmd, dm_block_t new_count) in dm_pool_resize_metadata_dev() argument
2027 pmd_write_lock(pmd); in dm_pool_resize_metadata_dev()
2028 if (!pmd->fail_io) { in dm_pool_resize_metadata_dev()
2029 r = __resize_space_map(pmd->metadata_sm, new_count); in dm_pool_resize_metadata_dev()
2031 __set_metadata_reserve(pmd); in dm_pool_resize_metadata_dev()
2033 pmd_write_unlock(pmd); in dm_pool_resize_metadata_dev()
2038 void dm_pool_metadata_read_only(struct dm_pool_metadata *pmd) in dm_pool_metadata_read_only() argument
2040 pmd_write_lock_in_core(pmd); in dm_pool_metadata_read_only()
2041 dm_bm_set_read_only(pmd->bm); in dm_pool_metadata_read_only()
2042 pmd_write_unlock(pmd); in dm_pool_metadata_read_only()
2045 void dm_pool_metadata_read_write(struct dm_pool_metadata *pmd) in dm_pool_metadata_read_write() argument
2047 pmd_write_lock_in_core(pmd); in dm_pool_metadata_read_write()
2048 dm_bm_set_read_write(pmd->bm); in dm_pool_metadata_read_write()
2049 pmd_write_unlock(pmd); in dm_pool_metadata_read_write()
2052 int dm_pool_register_metadata_threshold(struct dm_pool_metadata *pmd, in dm_pool_register_metadata_threshold() argument
2059 pmd_write_lock_in_core(pmd); in dm_pool_register_metadata_threshold()
2060 r = dm_sm_register_threshold_callback(pmd->metadata_sm, threshold, fn, context); in dm_pool_register_metadata_threshold()
2061 pmd_write_unlock(pmd); in dm_pool_register_metadata_threshold()
2066 void dm_pool_register_pre_commit_callback(struct dm_pool_metadata *pmd, in dm_pool_register_pre_commit_callback() argument
2070 pmd_write_lock_in_core(pmd); in dm_pool_register_pre_commit_callback()
2071 pmd->pre_commit_fn = fn; in dm_pool_register_pre_commit_callback()
2072 pmd->pre_commit_context = context; in dm_pool_register_pre_commit_callback()
2073 pmd_write_unlock(pmd); in dm_pool_register_pre_commit_callback()
2076 int dm_pool_metadata_set_needs_check(struct dm_pool_metadata *pmd) in dm_pool_metadata_set_needs_check() argument
2082 pmd_write_lock(pmd); in dm_pool_metadata_set_needs_check()
2083 if (pmd->fail_io) in dm_pool_metadata_set_needs_check()
2086 pmd->flags |= THIN_METADATA_NEEDS_CHECK_FLAG; in dm_pool_metadata_set_needs_check()
2088 r = superblock_lock(pmd, &sblock); in dm_pool_metadata_set_needs_check()
2095 disk_super->flags = cpu_to_le32(pmd->flags); in dm_pool_metadata_set_needs_check()
2099 pmd_write_unlock(pmd); in dm_pool_metadata_set_needs_check()
2103 bool dm_pool_metadata_needs_check(struct dm_pool_metadata *pmd) in dm_pool_metadata_needs_check() argument
2107 down_read(&pmd->root_lock); in dm_pool_metadata_needs_check()
2108 needs_check = pmd->flags & THIN_METADATA_NEEDS_CHECK_FLAG; in dm_pool_metadata_needs_check()
2109 up_read(&pmd->root_lock); in dm_pool_metadata_needs_check()
2114 void dm_pool_issue_prefetches(struct dm_pool_metadata *pmd) in dm_pool_issue_prefetches() argument
2116 down_read(&pmd->root_lock); in dm_pool_issue_prefetches()
2117 if (!pmd->fail_io) in dm_pool_issue_prefetches()
2118 dm_tm_issue_prefetches(pmd->tm); in dm_pool_issue_prefetches()
2119 up_read(&pmd->root_lock); in dm_pool_issue_prefetches()