Lines Matching refs:pmd
221 struct dm_pool_metadata *pmd; member
381 static inline void __pmd_write_lock(struct dm_pool_metadata *pmd) in __pmd_write_lock() argument
382 __acquires(pmd->root_lock) in __pmd_write_lock()
384 down_write(&pmd->root_lock); in __pmd_write_lock()
386 #define pmd_write_lock_in_core(pmd) __pmd_write_lock((pmd)) argument
388 static inline void pmd_write_lock(struct dm_pool_metadata *pmd) in pmd_write_lock() argument
390 __pmd_write_lock(pmd); in pmd_write_lock()
391 if (unlikely(!pmd->in_service)) in pmd_write_lock()
392 pmd->in_service = true; in pmd_write_lock()
395 static inline void pmd_write_unlock(struct dm_pool_metadata *pmd) in pmd_write_unlock() argument
396 __releases(pmd->root_lock) in pmd_write_unlock()
398 up_write(&pmd->root_lock); in pmd_write_unlock()
403 static int superblock_lock_zero(struct dm_pool_metadata *pmd, in superblock_lock_zero() argument
406 return dm_bm_write_lock_zero(pmd->bm, THIN_SUPERBLOCK_LOCATION, in superblock_lock_zero()
410 static int superblock_lock(struct dm_pool_metadata *pmd, in superblock_lock() argument
413 return dm_bm_write_lock(pmd->bm, THIN_SUPERBLOCK_LOCATION, in superblock_lock()
446 static void __setup_btree_details(struct dm_pool_metadata *pmd) in __setup_btree_details() argument
448 pmd->info.tm = pmd->tm; in __setup_btree_details()
449 pmd->info.levels = 2; in __setup_btree_details()
450 pmd->info.value_type.context = pmd->data_sm; in __setup_btree_details()
451 pmd->info.value_type.size = sizeof(__le64); in __setup_btree_details()
452 pmd->info.value_type.inc = data_block_inc; in __setup_btree_details()
453 pmd->info.value_type.dec = data_block_dec; in __setup_btree_details()
454 pmd->info.value_type.equal = data_block_equal; in __setup_btree_details()
456 memcpy(&pmd->nb_info, &pmd->info, sizeof(pmd->nb_info)); in __setup_btree_details()
457 pmd->nb_info.tm = pmd->nb_tm; in __setup_btree_details()
459 pmd->tl_info.tm = pmd->tm; in __setup_btree_details()
460 pmd->tl_info.levels = 1; in __setup_btree_details()
461 pmd->tl_info.value_type.context = &pmd->bl_info; in __setup_btree_details()
462 pmd->tl_info.value_type.size = sizeof(__le64); in __setup_btree_details()
463 pmd->tl_info.value_type.inc = subtree_inc; in __setup_btree_details()
464 pmd->tl_info.value_type.dec = subtree_dec; in __setup_btree_details()
465 pmd->tl_info.value_type.equal = subtree_equal; in __setup_btree_details()
467 pmd->bl_info.tm = pmd->tm; in __setup_btree_details()
468 pmd->bl_info.levels = 1; in __setup_btree_details()
469 pmd->bl_info.value_type.context = pmd->data_sm; in __setup_btree_details()
470 pmd->bl_info.value_type.size = sizeof(__le64); in __setup_btree_details()
471 pmd->bl_info.value_type.inc = data_block_inc; in __setup_btree_details()
472 pmd->bl_info.value_type.dec = data_block_dec; in __setup_btree_details()
473 pmd->bl_info.value_type.equal = data_block_equal; in __setup_btree_details()
475 pmd->details_info.tm = pmd->tm; in __setup_btree_details()
476 pmd->details_info.levels = 1; in __setup_btree_details()
477 pmd->details_info.value_type.context = NULL; in __setup_btree_details()
478 pmd->details_info.value_type.size = sizeof(struct disk_device_details); in __setup_btree_details()
479 pmd->details_info.value_type.inc = NULL; in __setup_btree_details()
480 pmd->details_info.value_type.dec = NULL; in __setup_btree_details()
481 pmd->details_info.value_type.equal = NULL; in __setup_btree_details()
484 static int save_sm_roots(struct dm_pool_metadata *pmd) in save_sm_roots() argument
489 r = dm_sm_root_size(pmd->metadata_sm, &len); in save_sm_roots()
493 r = dm_sm_copy_root(pmd->metadata_sm, &pmd->metadata_space_map_root, len); in save_sm_roots()
497 r = dm_sm_root_size(pmd->data_sm, &len); in save_sm_roots()
501 return dm_sm_copy_root(pmd->data_sm, &pmd->data_space_map_root, len); in save_sm_roots()
504 static void copy_sm_roots(struct dm_pool_metadata *pmd, in copy_sm_roots() argument
508 &pmd->metadata_space_map_root, in copy_sm_roots()
509 sizeof(pmd->metadata_space_map_root)); in copy_sm_roots()
512 &pmd->data_space_map_root, in copy_sm_roots()
513 sizeof(pmd->data_space_map_root)); in copy_sm_roots()
516 static int __write_initial_superblock(struct dm_pool_metadata *pmd) in __write_initial_superblock() argument
521 sector_t bdev_size = i_size_read(pmd->bdev->bd_inode) >> SECTOR_SHIFT; in __write_initial_superblock()
526 r = dm_sm_commit(pmd->data_sm); in __write_initial_superblock()
530 r = dm_tm_pre_commit(pmd->tm); in __write_initial_superblock()
534 r = save_sm_roots(pmd); in __write_initial_superblock()
538 r = superblock_lock_zero(pmd, &sblock); in __write_initial_superblock()
551 copy_sm_roots(pmd, disk_super); in __write_initial_superblock()
553 disk_super->data_mapping_root = cpu_to_le64(pmd->root); in __write_initial_superblock()
554 disk_super->device_details_root = cpu_to_le64(pmd->details_root); in __write_initial_superblock()
557 disk_super->data_block_size = cpu_to_le32(pmd->data_block_size); in __write_initial_superblock()
559 return dm_tm_commit(pmd->tm, sblock); in __write_initial_superblock()
562 static int __format_metadata(struct dm_pool_metadata *pmd) in __format_metadata() argument
566 r = dm_tm_create_with_sm(pmd->bm, THIN_SUPERBLOCK_LOCATION, in __format_metadata()
567 &pmd->tm, &pmd->metadata_sm); in __format_metadata()
573 pmd->data_sm = dm_sm_disk_create(pmd->tm, 0); in __format_metadata()
574 if (IS_ERR(pmd->data_sm)) { in __format_metadata()
576 r = PTR_ERR(pmd->data_sm); in __format_metadata()
580 pmd->nb_tm = dm_tm_create_non_blocking_clone(pmd->tm); in __format_metadata()
581 if (!pmd->nb_tm) { in __format_metadata()
587 __setup_btree_details(pmd); in __format_metadata()
589 r = dm_btree_empty(&pmd->info, &pmd->root); in __format_metadata()
593 r = dm_btree_empty(&pmd->details_info, &pmd->details_root); in __format_metadata()
599 r = __write_initial_superblock(pmd); in __format_metadata()
606 dm_tm_destroy(pmd->nb_tm); in __format_metadata()
608 dm_sm_destroy(pmd->data_sm); in __format_metadata()
610 dm_tm_destroy(pmd->tm); in __format_metadata()
611 dm_sm_destroy(pmd->metadata_sm); in __format_metadata()
617 struct dm_pool_metadata *pmd) in __check_incompat_features() argument
631 if (get_disk_ro(pmd->bdev->bd_disk)) in __check_incompat_features()
644 static int __open_metadata(struct dm_pool_metadata *pmd) in __open_metadata() argument
650 r = dm_bm_read_lock(pmd->bm, THIN_SUPERBLOCK_LOCATION, in __open_metadata()
660 if (le32_to_cpu(disk_super->data_block_size) != pmd->data_block_size) { in __open_metadata()
663 (unsigned long long)pmd->data_block_size); in __open_metadata()
668 r = __check_incompat_features(disk_super, pmd); in __open_metadata()
672 r = dm_tm_open_with_sm(pmd->bm, THIN_SUPERBLOCK_LOCATION, in __open_metadata()
675 &pmd->tm, &pmd->metadata_sm); in __open_metadata()
681 pmd->data_sm = dm_sm_disk_open(pmd->tm, disk_super->data_space_map_root, in __open_metadata()
683 if (IS_ERR(pmd->data_sm)) { in __open_metadata()
685 r = PTR_ERR(pmd->data_sm); in __open_metadata()
689 pmd->nb_tm = dm_tm_create_non_blocking_clone(pmd->tm); in __open_metadata()
690 if (!pmd->nb_tm) { in __open_metadata()
696 __setup_btree_details(pmd); in __open_metadata()
702 dm_sm_destroy(pmd->data_sm); in __open_metadata()
704 dm_tm_destroy(pmd->tm); in __open_metadata()
705 dm_sm_destroy(pmd->metadata_sm); in __open_metadata()
712 static int __open_or_format_metadata(struct dm_pool_metadata *pmd, bool format_device) in __open_or_format_metadata() argument
716 r = __superblock_all_zeroes(pmd->bm, &unformatted); in __open_or_format_metadata()
721 return format_device ? __format_metadata(pmd) : -EPERM; in __open_or_format_metadata()
723 return __open_metadata(pmd); in __open_or_format_metadata()
726 static int __create_persistent_data_objects(struct dm_pool_metadata *pmd, bool format_device) in __create_persistent_data_objects() argument
730 pmd->bm = dm_block_manager_create(pmd->bdev, THIN_METADATA_BLOCK_SIZE << SECTOR_SHIFT, in __create_persistent_data_objects()
732 if (IS_ERR(pmd->bm)) { in __create_persistent_data_objects()
734 return PTR_ERR(pmd->bm); in __create_persistent_data_objects()
737 r = __open_or_format_metadata(pmd, format_device); in __create_persistent_data_objects()
739 dm_block_manager_destroy(pmd->bm); in __create_persistent_data_objects()
744 static void __destroy_persistent_data_objects(struct dm_pool_metadata *pmd) in __destroy_persistent_data_objects() argument
746 dm_sm_destroy(pmd->data_sm); in __destroy_persistent_data_objects()
747 dm_sm_destroy(pmd->metadata_sm); in __destroy_persistent_data_objects()
748 dm_tm_destroy(pmd->nb_tm); in __destroy_persistent_data_objects()
749 dm_tm_destroy(pmd->tm); in __destroy_persistent_data_objects()
750 dm_block_manager_destroy(pmd->bm); in __destroy_persistent_data_objects()
753 static int __begin_transaction(struct dm_pool_metadata *pmd) in __begin_transaction() argument
763 r = dm_bm_read_lock(pmd->bm, THIN_SUPERBLOCK_LOCATION, in __begin_transaction()
769 pmd->time = le32_to_cpu(disk_super->time); in __begin_transaction()
770 pmd->root = le64_to_cpu(disk_super->data_mapping_root); in __begin_transaction()
771 pmd->details_root = le64_to_cpu(disk_super->device_details_root); in __begin_transaction()
772 pmd->trans_id = le64_to_cpu(disk_super->trans_id); in __begin_transaction()
773 pmd->flags = le32_to_cpu(disk_super->flags); in __begin_transaction()
774 pmd->data_block_size = le32_to_cpu(disk_super->data_block_size); in __begin_transaction()
780 static int __write_changed_details(struct dm_pool_metadata *pmd) in __write_changed_details() argument
787 list_for_each_entry_safe(td, tmp, &pmd->thin_devices, list) { in __write_changed_details()
799 r = dm_btree_insert(&pmd->details_info, pmd->details_root, in __write_changed_details()
800 &key, &details, &pmd->details_root); in __write_changed_details()
815 static int __commit_transaction(struct dm_pool_metadata *pmd) in __commit_transaction() argument
826 if (unlikely(!pmd->in_service)) in __commit_transaction()
829 r = __write_changed_details(pmd); in __commit_transaction()
833 r = dm_sm_commit(pmd->data_sm); in __commit_transaction()
837 r = dm_tm_pre_commit(pmd->tm); in __commit_transaction()
841 r = save_sm_roots(pmd); in __commit_transaction()
845 r = superblock_lock(pmd, &sblock); in __commit_transaction()
850 disk_super->time = cpu_to_le32(pmd->time); in __commit_transaction()
851 disk_super->data_mapping_root = cpu_to_le64(pmd->root); in __commit_transaction()
852 disk_super->device_details_root = cpu_to_le64(pmd->details_root); in __commit_transaction()
853 disk_super->trans_id = cpu_to_le64(pmd->trans_id); in __commit_transaction()
854 disk_super->flags = cpu_to_le32(pmd->flags); in __commit_transaction()
856 copy_sm_roots(pmd, disk_super); in __commit_transaction()
858 return dm_tm_commit(pmd->tm, sblock); in __commit_transaction()
861 static void __set_metadata_reserve(struct dm_pool_metadata *pmd) in __set_metadata_reserve() argument
867 r = dm_sm_get_nr_blocks(pmd->metadata_sm, &total); in __set_metadata_reserve()
870 pmd->metadata_reserve = max_blocks; in __set_metadata_reserve()
872 pmd->metadata_reserve = min(max_blocks, div_u64(total, 10)); in __set_metadata_reserve()
880 struct dm_pool_metadata *pmd; in dm_pool_metadata_open() local
882 pmd = kmalloc(sizeof(*pmd), GFP_KERNEL); in dm_pool_metadata_open()
883 if (!pmd) { in dm_pool_metadata_open()
888 init_rwsem(&pmd->root_lock); in dm_pool_metadata_open()
889 pmd->time = 0; in dm_pool_metadata_open()
890 INIT_LIST_HEAD(&pmd->thin_devices); in dm_pool_metadata_open()
891 pmd->fail_io = false; in dm_pool_metadata_open()
892 pmd->in_service = false; in dm_pool_metadata_open()
893 pmd->bdev = bdev; in dm_pool_metadata_open()
894 pmd->data_block_size = data_block_size; in dm_pool_metadata_open()
896 r = __create_persistent_data_objects(pmd, format_device); in dm_pool_metadata_open()
898 kfree(pmd); in dm_pool_metadata_open()
902 r = __begin_transaction(pmd); in dm_pool_metadata_open()
904 if (dm_pool_metadata_close(pmd) < 0) in dm_pool_metadata_open()
909 __set_metadata_reserve(pmd); in dm_pool_metadata_open()
911 return pmd; in dm_pool_metadata_open()
914 int dm_pool_metadata_close(struct dm_pool_metadata *pmd) in dm_pool_metadata_close() argument
920 down_read(&pmd->root_lock); in dm_pool_metadata_close()
921 list_for_each_entry_safe(td, tmp, &pmd->thin_devices, list) { in dm_pool_metadata_close()
929 up_read(&pmd->root_lock); in dm_pool_metadata_close()
937 if (!dm_bm_is_read_only(pmd->bm) && !pmd->fail_io) { in dm_pool_metadata_close()
938 r = __commit_transaction(pmd); in dm_pool_metadata_close()
943 if (!pmd->fail_io) in dm_pool_metadata_close()
944 __destroy_persistent_data_objects(pmd); in dm_pool_metadata_close()
946 kfree(pmd); in dm_pool_metadata_close()
955 static int __open_device(struct dm_pool_metadata *pmd, in __open_device() argument
967 list_for_each_entry(td2, &pmd->thin_devices, list) in __open_device()
983 r = dm_btree_lookup(&pmd->details_info, pmd->details_root, in __open_device()
994 details_le.transaction_id = cpu_to_le64(pmd->trans_id); in __open_device()
995 details_le.creation_time = cpu_to_le32(pmd->time); in __open_device()
996 details_le.snapshotted_time = cpu_to_le32(pmd->time); in __open_device()
1003 (*td)->pmd = pmd; in __open_device()
1013 list_add(&(*td)->list, &pmd->thin_devices); in __open_device()
1023 static int __create_thin(struct dm_pool_metadata *pmd, in __create_thin() argument
1033 r = dm_btree_lookup(&pmd->details_info, pmd->details_root, in __create_thin()
1041 r = dm_btree_empty(&pmd->bl_info, &dev_root); in __create_thin()
1050 r = dm_btree_insert(&pmd->tl_info, pmd->root, &key, &value, &pmd->root); in __create_thin()
1052 dm_btree_del(&pmd->bl_info, dev_root); in __create_thin()
1056 r = __open_device(pmd, dev, 1, &td); in __create_thin()
1058 dm_btree_remove(&pmd->tl_info, pmd->root, &key, &pmd->root); in __create_thin()
1059 dm_btree_del(&pmd->bl_info, dev_root); in __create_thin()
1067 int dm_pool_create_thin(struct dm_pool_metadata *pmd, dm_thin_id dev) in dm_pool_create_thin() argument
1071 pmd_write_lock(pmd); in dm_pool_create_thin()
1072 if (!pmd->fail_io) in dm_pool_create_thin()
1073 r = __create_thin(pmd, dev); in dm_pool_create_thin()
1074 pmd_write_unlock(pmd); in dm_pool_create_thin()
1079 static int __set_snapshot_details(struct dm_pool_metadata *pmd, in __set_snapshot_details() argument
1086 r = __open_device(pmd, origin, 0, &td); in __set_snapshot_details()
1100 static int __create_snap(struct dm_pool_metadata *pmd, in __create_snap() argument
1111 r = dm_btree_lookup(&pmd->details_info, pmd->details_root, in __create_snap()
1117 r = dm_btree_lookup(&pmd->tl_info, pmd->root, &key, &value); in __create_snap()
1123 dm_tm_inc(pmd->tm, origin_root); in __create_snap()
1129 r = dm_btree_insert(&pmd->tl_info, pmd->root, &key, &value, &pmd->root); in __create_snap()
1131 dm_tm_dec(pmd->tm, origin_root); in __create_snap()
1135 pmd->time++; in __create_snap()
1137 r = __open_device(pmd, dev, 1, &td); in __create_snap()
1141 r = __set_snapshot_details(pmd, td, origin, pmd->time); in __create_snap()
1150 dm_btree_remove(&pmd->tl_info, pmd->root, &key, &pmd->root); in __create_snap()
1151 dm_btree_remove(&pmd->details_info, pmd->details_root, in __create_snap()
1152 &key, &pmd->details_root); in __create_snap()
1156 int dm_pool_create_snap(struct dm_pool_metadata *pmd, in dm_pool_create_snap() argument
1162 pmd_write_lock(pmd); in dm_pool_create_snap()
1163 if (!pmd->fail_io) in dm_pool_create_snap()
1164 r = __create_snap(pmd, dev, origin); in dm_pool_create_snap()
1165 pmd_write_unlock(pmd); in dm_pool_create_snap()
1170 static int __delete_device(struct dm_pool_metadata *pmd, dm_thin_id dev) in __delete_device() argument
1177 r = __open_device(pmd, dev, 0, &td); in __delete_device()
1188 r = dm_btree_remove(&pmd->details_info, pmd->details_root, in __delete_device()
1189 &key, &pmd->details_root); in __delete_device()
1193 r = dm_btree_remove(&pmd->tl_info, pmd->root, &key, &pmd->root); in __delete_device()
1200 int dm_pool_delete_thin_device(struct dm_pool_metadata *pmd, in dm_pool_delete_thin_device() argument
1205 pmd_write_lock(pmd); in dm_pool_delete_thin_device()
1206 if (!pmd->fail_io) in dm_pool_delete_thin_device()
1207 r = __delete_device(pmd, dev); in dm_pool_delete_thin_device()
1208 pmd_write_unlock(pmd); in dm_pool_delete_thin_device()
1213 int dm_pool_set_metadata_transaction_id(struct dm_pool_metadata *pmd, in dm_pool_set_metadata_transaction_id() argument
1219 pmd_write_lock(pmd); in dm_pool_set_metadata_transaction_id()
1221 if (pmd->fail_io) in dm_pool_set_metadata_transaction_id()
1224 if (pmd->trans_id != current_id) { in dm_pool_set_metadata_transaction_id()
1229 pmd->trans_id = new_id; in dm_pool_set_metadata_transaction_id()
1233 pmd_write_unlock(pmd); in dm_pool_set_metadata_transaction_id()
1238 int dm_pool_get_metadata_transaction_id(struct dm_pool_metadata *pmd, in dm_pool_get_metadata_transaction_id() argument
1243 down_read(&pmd->root_lock); in dm_pool_get_metadata_transaction_id()
1244 if (!pmd->fail_io) { in dm_pool_get_metadata_transaction_id()
1245 *result = pmd->trans_id; in dm_pool_get_metadata_transaction_id()
1248 up_read(&pmd->root_lock); in dm_pool_get_metadata_transaction_id()
1253 static int __reserve_metadata_snap(struct dm_pool_metadata *pmd) in __reserve_metadata_snap() argument
1264 r = __commit_transaction(pmd); in __reserve_metadata_snap()
1274 dm_sm_inc_block(pmd->metadata_sm, THIN_SUPERBLOCK_LOCATION); in __reserve_metadata_snap()
1275 r = dm_tm_shadow_block(pmd->tm, THIN_SUPERBLOCK_LOCATION, in __reserve_metadata_snap()
1288 dm_tm_dec(pmd->tm, held_root); in __reserve_metadata_snap()
1289 dm_tm_unlock(pmd->tm, copy); in __reserve_metadata_snap()
1304 dm_tm_inc(pmd->tm, le64_to_cpu(disk_super->data_mapping_root)); in __reserve_metadata_snap()
1305 dm_tm_inc(pmd->tm, le64_to_cpu(disk_super->device_details_root)); in __reserve_metadata_snap()
1306 dm_tm_unlock(pmd->tm, copy); in __reserve_metadata_snap()
1311 r = superblock_lock(pmd, &sblock); in __reserve_metadata_snap()
1313 dm_tm_dec(pmd->tm, held_root); in __reserve_metadata_snap()
1323 int dm_pool_reserve_metadata_snap(struct dm_pool_metadata *pmd) in dm_pool_reserve_metadata_snap() argument
1327 pmd_write_lock(pmd); in dm_pool_reserve_metadata_snap()
1328 if (!pmd->fail_io) in dm_pool_reserve_metadata_snap()
1329 r = __reserve_metadata_snap(pmd); in dm_pool_reserve_metadata_snap()
1330 pmd_write_unlock(pmd); in dm_pool_reserve_metadata_snap()
1335 static int __release_metadata_snap(struct dm_pool_metadata *pmd) in __release_metadata_snap() argument
1342 r = superblock_lock(pmd, &sblock); in __release_metadata_snap()
1357 r = dm_tm_read_lock(pmd->tm, held_root, &sb_validator, ©); in __release_metadata_snap()
1362 dm_btree_del(&pmd->info, le64_to_cpu(disk_super->data_mapping_root)); in __release_metadata_snap()
1363 dm_btree_del(&pmd->details_info, le64_to_cpu(disk_super->device_details_root)); in __release_metadata_snap()
1364 dm_sm_dec_block(pmd->metadata_sm, held_root); in __release_metadata_snap()
1366 dm_tm_unlock(pmd->tm, copy); in __release_metadata_snap()
1371 int dm_pool_release_metadata_snap(struct dm_pool_metadata *pmd) in dm_pool_release_metadata_snap() argument
1375 pmd_write_lock(pmd); in dm_pool_release_metadata_snap()
1376 if (!pmd->fail_io) in dm_pool_release_metadata_snap()
1377 r = __release_metadata_snap(pmd); in dm_pool_release_metadata_snap()
1378 pmd_write_unlock(pmd); in dm_pool_release_metadata_snap()
1383 static int __get_metadata_snap(struct dm_pool_metadata *pmd, in __get_metadata_snap() argument
1390 r = dm_bm_read_lock(pmd->bm, THIN_SUPERBLOCK_LOCATION, in __get_metadata_snap()
1403 int dm_pool_get_metadata_snap(struct dm_pool_metadata *pmd, in dm_pool_get_metadata_snap() argument
1408 down_read(&pmd->root_lock); in dm_pool_get_metadata_snap()
1409 if (!pmd->fail_io) in dm_pool_get_metadata_snap()
1410 r = __get_metadata_snap(pmd, result); in dm_pool_get_metadata_snap()
1411 up_read(&pmd->root_lock); in dm_pool_get_metadata_snap()
1416 int dm_pool_open_thin_device(struct dm_pool_metadata *pmd, dm_thin_id dev, in dm_pool_open_thin_device() argument
1421 pmd_write_lock_in_core(pmd); in dm_pool_open_thin_device()
1422 if (!pmd->fail_io) in dm_pool_open_thin_device()
1423 r = __open_device(pmd, dev, 0, td); in dm_pool_open_thin_device()
1424 pmd_write_unlock(pmd); in dm_pool_open_thin_device()
1431 pmd_write_lock_in_core(td->pmd); in dm_pool_close_thin_device()
1433 pmd_write_unlock(td->pmd); in dm_pool_close_thin_device()
1472 struct dm_pool_metadata *pmd = td->pmd; in __find_block() local
1477 info = &pmd->info; in __find_block()
1479 info = &pmd->nb_info; in __find_block()
1481 r = dm_btree_lookup(info, pmd->root, keys, &value); in __find_block()
1492 struct dm_pool_metadata *pmd = td->pmd; in dm_thin_find_block() local
1494 down_read(&pmd->root_lock); in dm_thin_find_block()
1495 if (pmd->fail_io) { in dm_thin_find_block()
1496 up_read(&pmd->root_lock); in dm_thin_find_block()
1502 up_read(&pmd->root_lock); in dm_thin_find_block()
1512 struct dm_pool_metadata *pmd = td->pmd; in __find_next_mapped_block() local
1515 r = dm_btree_lookup_next(&pmd->info, pmd->root, keys, vblock, &value); in __find_next_mapped_block()
1574 struct dm_pool_metadata *pmd = td->pmd; in dm_thin_find_mapped_range() local
1576 down_read(&pmd->root_lock); in dm_thin_find_mapped_range()
1577 if (!pmd->fail_io) { in dm_thin_find_mapped_range()
1581 up_read(&pmd->root_lock); in dm_thin_find_mapped_range()
1591 struct dm_pool_metadata *pmd = td->pmd; in __insert() local
1594 value = cpu_to_le64(pack_block_time(data_block, pmd->time)); in __insert()
1597 r = dm_btree_insert_notify(&pmd->info, pmd->root, keys, &value, in __insert()
1598 &pmd->root, &inserted); in __insert()
1614 pmd_write_lock(td->pmd); in dm_thin_insert_block()
1615 if (!td->pmd->fail_io) in dm_thin_insert_block()
1617 pmd_write_unlock(td->pmd); in dm_thin_insert_block()
1625 struct dm_pool_metadata *pmd = td->pmd; in __remove() local
1628 r = dm_btree_remove(&pmd->info, pmd->root, keys, &pmd->root); in __remove()
1642 struct dm_pool_metadata *pmd = td->pmd; in __remove_range() local
1650 r = dm_btree_lookup(&pmd->tl_info, pmd->root, keys, &value); in __remove_range()
1659 dm_tm_inc(pmd->tm, mapping_root); in __remove_range()
1660 r = dm_btree_remove(&pmd->tl_info, pmd->root, keys, &pmd->root); in __remove_range()
1669 r = dm_btree_lookup_next(&pmd->bl_info, mapping_root, &begin, &begin, &value); in __remove_range()
1679 r = dm_btree_remove_leaves(&pmd->bl_info, mapping_root, &begin, end, &mapping_root, &count); in __remove_range()
1694 return dm_btree_insert(&pmd->tl_info, pmd->root, keys, &value, &pmd->root); in __remove_range()
1701 pmd_write_lock(td->pmd); in dm_thin_remove_block()
1702 if (!td->pmd->fail_io) in dm_thin_remove_block()
1704 pmd_write_unlock(td->pmd); in dm_thin_remove_block()
1714 pmd_write_lock(td->pmd); in dm_thin_remove_range()
1715 if (!td->pmd->fail_io) in dm_thin_remove_range()
1717 pmd_write_unlock(td->pmd); in dm_thin_remove_range()
1722 int dm_pool_block_is_shared(struct dm_pool_metadata *pmd, dm_block_t b, bool *result) in dm_pool_block_is_shared() argument
1727 down_read(&pmd->root_lock); in dm_pool_block_is_shared()
1728 r = dm_sm_get_count(pmd->data_sm, b, &ref_count); in dm_pool_block_is_shared()
1731 up_read(&pmd->root_lock); in dm_pool_block_is_shared()
1736 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
1740 pmd_write_lock(pmd); in dm_pool_inc_data_range()
1742 r = dm_sm_inc_block(pmd->data_sm, b); in dm_pool_inc_data_range()
1746 pmd_write_unlock(pmd); in dm_pool_inc_data_range()
1751 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
1755 pmd_write_lock(pmd); in dm_pool_dec_data_range()
1757 r = dm_sm_dec_block(pmd->data_sm, b); in dm_pool_dec_data_range()
1761 pmd_write_unlock(pmd); in dm_pool_dec_data_range()
1770 down_read(&td->pmd->root_lock); in dm_thin_changed_this_transaction()
1772 up_read(&td->pmd->root_lock); in dm_thin_changed_this_transaction()
1777 bool dm_pool_changed_this_transaction(struct dm_pool_metadata *pmd) in dm_pool_changed_this_transaction() argument
1782 down_read(&pmd->root_lock); in dm_pool_changed_this_transaction()
1783 list_for_each_entry_safe(td, tmp, &pmd->thin_devices, list) { in dm_pool_changed_this_transaction()
1789 up_read(&pmd->root_lock); in dm_pool_changed_this_transaction()
1798 down_read(&td->pmd->root_lock); in dm_thin_aborted_changes()
1800 up_read(&td->pmd->root_lock); in dm_thin_aborted_changes()
1805 int dm_pool_alloc_data_block(struct dm_pool_metadata *pmd, dm_block_t *result) in dm_pool_alloc_data_block() argument
1809 pmd_write_lock(pmd); in dm_pool_alloc_data_block()
1810 if (!pmd->fail_io) in dm_pool_alloc_data_block()
1811 r = dm_sm_new_block(pmd->data_sm, result); in dm_pool_alloc_data_block()
1812 pmd_write_unlock(pmd); in dm_pool_alloc_data_block()
1817 int dm_pool_commit_metadata(struct dm_pool_metadata *pmd) in dm_pool_commit_metadata() argument
1825 __pmd_write_lock(pmd); in dm_pool_commit_metadata()
1826 if (pmd->fail_io) in dm_pool_commit_metadata()
1829 r = __commit_transaction(pmd); in dm_pool_commit_metadata()
1836 r = __begin_transaction(pmd); in dm_pool_commit_metadata()
1838 pmd_write_unlock(pmd); in dm_pool_commit_metadata()
1842 static void __set_abort_with_changes_flags(struct dm_pool_metadata *pmd) in __set_abort_with_changes_flags() argument
1846 list_for_each_entry(td, &pmd->thin_devices, list) in __set_abort_with_changes_flags()
1850 int dm_pool_abort_metadata(struct dm_pool_metadata *pmd) in dm_pool_abort_metadata() argument
1854 pmd_write_lock(pmd); in dm_pool_abort_metadata()
1855 if (pmd->fail_io) in dm_pool_abort_metadata()
1858 __set_abort_with_changes_flags(pmd); in dm_pool_abort_metadata()
1859 __destroy_persistent_data_objects(pmd); in dm_pool_abort_metadata()
1860 r = __create_persistent_data_objects(pmd, false); in dm_pool_abort_metadata()
1862 pmd->fail_io = true; in dm_pool_abort_metadata()
1865 pmd_write_unlock(pmd); in dm_pool_abort_metadata()
1870 int dm_pool_get_free_block_count(struct dm_pool_metadata *pmd, dm_block_t *result) in dm_pool_get_free_block_count() argument
1874 down_read(&pmd->root_lock); in dm_pool_get_free_block_count()
1875 if (!pmd->fail_io) in dm_pool_get_free_block_count()
1876 r = dm_sm_get_nr_free(pmd->data_sm, result); in dm_pool_get_free_block_count()
1877 up_read(&pmd->root_lock); in dm_pool_get_free_block_count()
1882 int dm_pool_get_free_metadata_block_count(struct dm_pool_metadata *pmd, in dm_pool_get_free_metadata_block_count() argument
1887 down_read(&pmd->root_lock); in dm_pool_get_free_metadata_block_count()
1888 if (!pmd->fail_io) in dm_pool_get_free_metadata_block_count()
1889 r = dm_sm_get_nr_free(pmd->metadata_sm, result); in dm_pool_get_free_metadata_block_count()
1892 if (*result < pmd->metadata_reserve) in dm_pool_get_free_metadata_block_count()
1895 *result -= pmd->metadata_reserve; in dm_pool_get_free_metadata_block_count()
1897 up_read(&pmd->root_lock); in dm_pool_get_free_metadata_block_count()
1902 int dm_pool_get_metadata_dev_size(struct dm_pool_metadata *pmd, in dm_pool_get_metadata_dev_size() argument
1907 down_read(&pmd->root_lock); in dm_pool_get_metadata_dev_size()
1908 if (!pmd->fail_io) in dm_pool_get_metadata_dev_size()
1909 r = dm_sm_get_nr_blocks(pmd->metadata_sm, result); in dm_pool_get_metadata_dev_size()
1910 up_read(&pmd->root_lock); in dm_pool_get_metadata_dev_size()
1915 int dm_pool_get_data_dev_size(struct dm_pool_metadata *pmd, dm_block_t *result) in dm_pool_get_data_dev_size() argument
1919 down_read(&pmd->root_lock); in dm_pool_get_data_dev_size()
1920 if (!pmd->fail_io) in dm_pool_get_data_dev_size()
1921 r = dm_sm_get_nr_blocks(pmd->data_sm, result); in dm_pool_get_data_dev_size()
1922 up_read(&pmd->root_lock); in dm_pool_get_data_dev_size()
1930 struct dm_pool_metadata *pmd = td->pmd; in dm_thin_get_mapped_count() local
1932 down_read(&pmd->root_lock); in dm_thin_get_mapped_count()
1933 if (!pmd->fail_io) { in dm_thin_get_mapped_count()
1937 up_read(&pmd->root_lock); in dm_thin_get_mapped_count()
1947 struct dm_pool_metadata *pmd = td->pmd; in __highest_block() local
1949 r = dm_btree_lookup(&pmd->tl_info, pmd->root, &td->id, &value_le); in __highest_block()
1955 return dm_btree_find_highest_key(&pmd->bl_info, thin_root, result); in __highest_block()
1962 struct dm_pool_metadata *pmd = td->pmd; in dm_thin_get_highest_mapped_block() local
1964 down_read(&pmd->root_lock); in dm_thin_get_highest_mapped_block()
1965 if (!pmd->fail_io) in dm_thin_get_highest_mapped_block()
1967 up_read(&pmd->root_lock); in dm_thin_get_highest_mapped_block()
1992 int dm_pool_resize_data_dev(struct dm_pool_metadata *pmd, dm_block_t new_count) in dm_pool_resize_data_dev() argument
1996 pmd_write_lock(pmd); in dm_pool_resize_data_dev()
1997 if (!pmd->fail_io) in dm_pool_resize_data_dev()
1998 r = __resize_space_map(pmd->data_sm, new_count); in dm_pool_resize_data_dev()
1999 pmd_write_unlock(pmd); in dm_pool_resize_data_dev()
2004 int dm_pool_resize_metadata_dev(struct dm_pool_metadata *pmd, dm_block_t new_count) in dm_pool_resize_metadata_dev() argument
2008 pmd_write_lock(pmd); in dm_pool_resize_metadata_dev()
2009 if (!pmd->fail_io) { in dm_pool_resize_metadata_dev()
2010 r = __resize_space_map(pmd->metadata_sm, new_count); in dm_pool_resize_metadata_dev()
2012 __set_metadata_reserve(pmd); in dm_pool_resize_metadata_dev()
2014 pmd_write_unlock(pmd); in dm_pool_resize_metadata_dev()
2019 void dm_pool_metadata_read_only(struct dm_pool_metadata *pmd) in dm_pool_metadata_read_only() argument
2021 pmd_write_lock_in_core(pmd); in dm_pool_metadata_read_only()
2022 dm_bm_set_read_only(pmd->bm); in dm_pool_metadata_read_only()
2023 pmd_write_unlock(pmd); in dm_pool_metadata_read_only()
2026 void dm_pool_metadata_read_write(struct dm_pool_metadata *pmd) in dm_pool_metadata_read_write() argument
2028 pmd_write_lock_in_core(pmd); in dm_pool_metadata_read_write()
2029 dm_bm_set_read_write(pmd->bm); in dm_pool_metadata_read_write()
2030 pmd_write_unlock(pmd); in dm_pool_metadata_read_write()
2033 int dm_pool_register_metadata_threshold(struct dm_pool_metadata *pmd, in dm_pool_register_metadata_threshold() argument
2040 pmd_write_lock_in_core(pmd); in dm_pool_register_metadata_threshold()
2041 r = dm_sm_register_threshold_callback(pmd->metadata_sm, threshold, fn, context); in dm_pool_register_metadata_threshold()
2042 pmd_write_unlock(pmd); in dm_pool_register_metadata_threshold()
2047 int dm_pool_metadata_set_needs_check(struct dm_pool_metadata *pmd) in dm_pool_metadata_set_needs_check() argument
2053 pmd_write_lock(pmd); in dm_pool_metadata_set_needs_check()
2054 if (pmd->fail_io) in dm_pool_metadata_set_needs_check()
2057 pmd->flags |= THIN_METADATA_NEEDS_CHECK_FLAG; in dm_pool_metadata_set_needs_check()
2059 r = superblock_lock(pmd, &sblock); in dm_pool_metadata_set_needs_check()
2066 disk_super->flags = cpu_to_le32(pmd->flags); in dm_pool_metadata_set_needs_check()
2070 pmd_write_unlock(pmd); in dm_pool_metadata_set_needs_check()
2074 bool dm_pool_metadata_needs_check(struct dm_pool_metadata *pmd) in dm_pool_metadata_needs_check() argument
2078 down_read(&pmd->root_lock); in dm_pool_metadata_needs_check()
2079 needs_check = pmd->flags & THIN_METADATA_NEEDS_CHECK_FLAG; in dm_pool_metadata_needs_check()
2080 up_read(&pmd->root_lock); in dm_pool_metadata_needs_check()
2085 void dm_pool_issue_prefetches(struct dm_pool_metadata *pmd) in dm_pool_issue_prefetches() argument
2087 down_read(&pmd->root_lock); in dm_pool_issue_prefetches()
2088 if (!pmd->fail_io) in dm_pool_issue_prefetches()
2089 dm_tm_issue_prefetches(pmd->tm); in dm_pool_issue_prefetches()
2090 up_read(&pmd->root_lock); in dm_pool_issue_prefetches()