Lines Matching refs:pmd
233 struct dm_pool_metadata *pmd;
419 static inline void pmd_write_lock_in_core(struct dm_pool_metadata *pmd)
420 __acquires(pmd->root_lock)
422 down_write(&pmd->root_lock);
425 static inline void pmd_write_lock(struct dm_pool_metadata *pmd)
427 pmd_write_lock_in_core(pmd);
428 if (unlikely(!pmd->in_service))
429 pmd->in_service = true;
432 static inline void pmd_write_unlock(struct dm_pool_metadata *pmd)
433 __releases(pmd->root_lock)
435 up_write(&pmd->root_lock);
440 static int superblock_lock_zero(struct dm_pool_metadata *pmd,
443 return dm_bm_write_lock_zero(pmd->bm, THIN_SUPERBLOCK_LOCATION,
447 static int superblock_lock(struct dm_pool_metadata *pmd,
450 return dm_bm_write_lock(pmd->bm, THIN_SUPERBLOCK_LOCATION,
483 static void __setup_btree_details(struct dm_pool_metadata *pmd)
485 pmd->info.tm = pmd->tm;
486 pmd->info.levels = 2;
487 pmd->info.value_type.context = pmd->data_sm;
488 pmd->info.value_type.size = sizeof(__le64);
489 pmd->info.value_type.inc = data_block_inc;
490 pmd->info.value_type.dec = data_block_dec;
491 pmd->info.value_type.equal = data_block_equal;
493 memcpy(&pmd->nb_info, &pmd->info, sizeof(pmd->nb_info));
494 pmd->nb_info.tm = pmd->nb_tm;
496 pmd->tl_info.tm = pmd->tm;
497 pmd->tl_info.levels = 1;
498 pmd->tl_info.value_type.context = &pmd->bl_info;
499 pmd->tl_info.value_type.size = sizeof(__le64);
500 pmd->tl_info.value_type.inc = subtree_inc;
501 pmd->tl_info.value_type.dec = subtree_dec;
502 pmd->tl_info.value_type.equal = subtree_equal;
504 pmd->bl_info.tm = pmd->tm;
505 pmd->bl_info.levels = 1;
506 pmd->bl_info.value_type.context = pmd->data_sm;
507 pmd->bl_info.value_type.size = sizeof(__le64);
508 pmd->bl_info.value_type.inc = data_block_inc;
509 pmd->bl_info.value_type.dec = data_block_dec;
510 pmd->bl_info.value_type.equal = data_block_equal;
512 pmd->details_info.tm = pmd->tm;
513 pmd->details_info.levels = 1;
514 pmd->details_info.value_type.context = NULL;
515 pmd->details_info.value_type.size = sizeof(struct disk_device_details);
516 pmd->details_info.value_type.inc = NULL;
517 pmd->details_info.value_type.dec = NULL;
518 pmd->details_info.value_type.equal = NULL;
521 static int save_sm_roots(struct dm_pool_metadata *pmd)
526 r = dm_sm_root_size(pmd->metadata_sm, &len);
530 r = dm_sm_copy_root(pmd->metadata_sm, &pmd->metadata_space_map_root, len);
534 r = dm_sm_root_size(pmd->data_sm, &len);
538 return dm_sm_copy_root(pmd->data_sm, &pmd->data_space_map_root, len);
541 static void copy_sm_roots(struct dm_pool_metadata *pmd,
545 &pmd->metadata_space_map_root,
546 sizeof(pmd->metadata_space_map_root));
549 &pmd->data_space_map_root,
550 sizeof(pmd->data_space_map_root));
553 static int __write_initial_superblock(struct dm_pool_metadata *pmd)
558 sector_t bdev_size = bdev_nr_sectors(pmd->bdev);
563 r = dm_sm_commit(pmd->data_sm);
567 r = dm_tm_pre_commit(pmd->tm);
571 r = save_sm_roots(pmd);
575 r = superblock_lock_zero(pmd, &sblock);
588 copy_sm_roots(pmd, disk_super);
590 disk_super->data_mapping_root = cpu_to_le64(pmd->root);
591 disk_super->device_details_root = cpu_to_le64(pmd->details_root);
594 disk_super->data_block_size = cpu_to_le32(pmd->data_block_size);
596 return dm_tm_commit(pmd->tm, sblock);
599 static int __format_metadata(struct dm_pool_metadata *pmd)
603 r = dm_tm_create_with_sm(pmd->bm, THIN_SUPERBLOCK_LOCATION,
604 &pmd->tm, &pmd->metadata_sm);
606 pmd->tm = NULL;
607 pmd->metadata_sm = NULL;
612 pmd->data_sm = dm_sm_disk_create(pmd->tm, 0);
613 if (IS_ERR(pmd->data_sm)) {
615 r = PTR_ERR(pmd->data_sm);
616 pmd->data_sm = NULL;
620 pmd->nb_tm = dm_tm_create_non_blocking_clone(pmd->tm);
621 if (!pmd->nb_tm) {
627 __setup_btree_details(pmd);
629 r = dm_btree_empty(&pmd->info, &pmd->root);
633 r = dm_btree_empty(&pmd->details_info, &pmd->details_root);
639 r = __write_initial_superblock(pmd);
646 dm_tm_destroy(pmd->nb_tm);
647 pmd->nb_tm = NULL;
649 dm_sm_destroy(pmd->data_sm);
650 pmd->data_sm = NULL;
652 dm_tm_destroy(pmd->tm);
653 pmd->tm = NULL;
654 dm_sm_destroy(pmd->metadata_sm);
655 pmd->metadata_sm = NULL;
661 struct dm_pool_metadata *pmd)
675 if (bdev_read_only(pmd->bdev))
688 static int __open_metadata(struct dm_pool_metadata *pmd)
694 r = dm_bm_read_lock(pmd->bm, THIN_SUPERBLOCK_LOCATION,
704 if (le32_to_cpu(disk_super->data_block_size) != pmd->data_block_size) {
707 (unsigned long long)pmd->data_block_size);
712 r = __check_incompat_features(disk_super, pmd);
716 r = dm_tm_open_with_sm(pmd->bm, THIN_SUPERBLOCK_LOCATION,
719 &pmd->tm, &pmd->metadata_sm);
721 pmd->tm = NULL;
722 pmd->metadata_sm = NULL;
727 pmd->data_sm = dm_sm_disk_open(pmd->tm, disk_super->data_space_map_root,
729 if (IS_ERR(pmd->data_sm)) {
731 r = PTR_ERR(pmd->data_sm);
732 pmd->data_sm = NULL;
736 pmd->nb_tm = dm_tm_create_non_blocking_clone(pmd->tm);
737 if (!pmd->nb_tm) {
749 pmd->root = le64_to_cpu(disk_super->data_mapping_root);
750 pmd->details_root = le64_to_cpu(disk_super->device_details_root);
752 __setup_btree_details(pmd);
758 dm_sm_destroy(pmd->data_sm);
759 pmd->data_sm = NULL;
761 dm_tm_destroy(pmd->tm);
762 pmd->tm = NULL;
763 dm_sm_destroy(pmd->metadata_sm);
764 pmd->metadata_sm = NULL;
771 static int __open_or_format_metadata(struct dm_pool_metadata *pmd, bool format_device)
775 r = __superblock_all_zeroes(pmd->bm, &unformatted);
780 return format_device ? __format_metadata(pmd) : -EPERM;
782 return __open_metadata(pmd);
785 static int __create_persistent_data_objects(struct dm_pool_metadata *pmd, bool format_device)
789 pmd->bm = dm_block_manager_create(pmd->bdev, THIN_METADATA_BLOCK_SIZE << SECTOR_SHIFT,
791 if (IS_ERR(pmd->bm)) {
793 r = PTR_ERR(pmd->bm);
794 pmd->bm = NULL;
798 r = __open_or_format_metadata(pmd, format_device);
800 dm_block_manager_destroy(pmd->bm);
801 pmd->bm = NULL;
807 static void __destroy_persistent_data_objects(struct dm_pool_metadata *pmd,
810 dm_sm_destroy(pmd->data_sm);
811 pmd->data_sm = NULL;
812 dm_sm_destroy(pmd->metadata_sm);
813 pmd->metadata_sm = NULL;
814 dm_tm_destroy(pmd->nb_tm);
815 pmd->nb_tm = NULL;
816 dm_tm_destroy(pmd->tm);
817 pmd->tm = NULL;
819 dm_block_manager_destroy(pmd->bm);
822 static int __begin_transaction(struct dm_pool_metadata *pmd)
832 r = dm_bm_read_lock(pmd->bm, THIN_SUPERBLOCK_LOCATION,
838 pmd->time = le32_to_cpu(disk_super->time);
839 pmd->root = le64_to_cpu(disk_super->data_mapping_root);
840 pmd->details_root = le64_to_cpu(disk_super->device_details_root);
841 pmd->trans_id = le64_to_cpu(disk_super->trans_id);
842 pmd->flags = le32_to_cpu(disk_super->flags);
843 pmd->data_block_size = le32_to_cpu(disk_super->data_block_size);
849 static int __write_changed_details(struct dm_pool_metadata *pmd)
856 list_for_each_entry_safe(td, tmp, &pmd->thin_devices, list) {
868 r = dm_btree_insert(&pmd->details_info, pmd->details_root,
869 &key, &details, &pmd->details_root);
884 static int __commit_transaction(struct dm_pool_metadata *pmd)
894 BUG_ON(!rwsem_is_locked(&pmd->root_lock));
896 if (unlikely(!pmd->in_service))
899 if (pmd->pre_commit_fn) {
900 r = pmd->pre_commit_fn(pmd->pre_commit_context);
907 r = __write_changed_details(pmd);
911 r = dm_sm_commit(pmd->data_sm);
915 r = dm_tm_pre_commit(pmd->tm);
919 r = save_sm_roots(pmd);
923 r = superblock_lock(pmd, &sblock);
928 disk_super->time = cpu_to_le32(pmd->time);
929 disk_super->data_mapping_root = cpu_to_le64(pmd->root);
930 disk_super->device_details_root = cpu_to_le64(pmd->details_root);
931 disk_super->trans_id = cpu_to_le64(pmd->trans_id);
932 disk_super->flags = cpu_to_le32(pmd->flags);
934 copy_sm_roots(pmd, disk_super);
936 return dm_tm_commit(pmd->tm, sblock);
939 static void __set_metadata_reserve(struct dm_pool_metadata *pmd)
945 r = dm_sm_get_nr_blocks(pmd->metadata_sm, &total);
948 pmd->metadata_reserve = max_blocks;
950 pmd->metadata_reserve = min(max_blocks, div_u64(total, 10));
958 struct dm_pool_metadata *pmd;
960 pmd = kmalloc(sizeof(*pmd), GFP_KERNEL);
961 if (!pmd) {
966 init_rwsem(&pmd->root_lock);
967 pmd->time = 0;
968 INIT_LIST_HEAD(&pmd->thin_devices);
969 pmd->fail_io = false;
970 pmd->in_service = false;
971 pmd->bdev = bdev;
972 pmd->data_block_size = data_block_size;
973 pmd->pre_commit_fn = NULL;
974 pmd->pre_commit_context = NULL;
976 r = __create_persistent_data_objects(pmd, format_device);
978 kfree(pmd);
982 r = __begin_transaction(pmd);
984 if (dm_pool_metadata_close(pmd) < 0)
989 __set_metadata_reserve(pmd);
991 return pmd;
994 int dm_pool_metadata_close(struct dm_pool_metadata *pmd)
1000 down_read(&pmd->root_lock);
1001 list_for_each_entry_safe(td, tmp, &pmd->thin_devices, list) {
1009 up_read(&pmd->root_lock);
1012 DMERR("attempt to close pmd when %u device(s) are still open",
1017 pmd_write_lock_in_core(pmd);
1018 if (!pmd->fail_io && !dm_bm_is_read_only(pmd->bm)) {
1019 r = __commit_transaction(pmd);
1024 pmd_write_unlock(pmd);
1025 __destroy_persistent_data_objects(pmd, true);
1027 kfree(pmd);
1036 static int __open_device(struct dm_pool_metadata *pmd,
1048 list_for_each_entry(td2, &pmd->thin_devices, list)
1064 r = dm_btree_lookup(&pmd->details_info, pmd->details_root,
1075 details_le.transaction_id = cpu_to_le64(pmd->trans_id);
1076 details_le.creation_time = cpu_to_le32(pmd->time);
1077 details_le.snapshotted_time = cpu_to_le32(pmd->time);
1084 (*td)->pmd = pmd;
1094 list_add(&(*td)->list, &pmd->thin_devices);
1104 static int __create_thin(struct dm_pool_metadata *pmd,
1113 r = dm_btree_lookup(&pmd->details_info, pmd->details_root,
1121 r = dm_btree_empty(&pmd->bl_info, &dev_root);
1130 r = dm_btree_insert(&pmd->tl_info, pmd->root, &key, &value, &pmd->root);
1132 dm_btree_del(&pmd->bl_info, dev_root);
1136 r = __open_device(pmd, dev, 1, &td);
1138 dm_btree_remove(&pmd->tl_info, pmd->root, &key, &pmd->root);
1139 dm_btree_del(&pmd->bl_info, dev_root);
1147 int dm_pool_create_thin(struct dm_pool_metadata *pmd, dm_thin_id dev)
1151 pmd_write_lock(pmd);
1152 if (!pmd->fail_io)
1153 r = __create_thin(pmd, dev);
1154 pmd_write_unlock(pmd);
1159 static int __set_snapshot_details(struct dm_pool_metadata *pmd,
1166 r = __open_device(pmd, origin, 0, &td);
1180 static int __create_snap(struct dm_pool_metadata *pmd,
1190 r = dm_btree_lookup(&pmd->details_info, pmd->details_root,
1196 r = dm_btree_lookup(&pmd->tl_info, pmd->root, &key, &value);
1202 dm_tm_inc(pmd->tm, origin_root);
1208 r = dm_btree_insert(&pmd->tl_info, pmd->root, &key, &value, &pmd->root);
1210 dm_tm_dec(pmd->tm, origin_root);
1214 pmd->time++;
1216 r = __open_device(pmd, dev, 1, &td);
1220 r = __set_snapshot_details(pmd, td, origin, pmd->time);
1229 dm_btree_remove(&pmd->tl_info, pmd->root, &key, &pmd->root);
1230 dm_btree_remove(&pmd->details_info, pmd->details_root,
1231 &key, &pmd->details_root);
1235 int dm_pool_create_snap(struct dm_pool_metadata *pmd,
1241 pmd_write_lock(pmd);
1242 if (!pmd->fail_io)
1243 r = __create_snap(pmd, dev, origin);
1244 pmd_write_unlock(pmd);
1249 static int __delete_device(struct dm_pool_metadata *pmd, dm_thin_id dev)
1256 r = __open_device(pmd, dev, 0, &td);
1267 r = dm_btree_remove(&pmd->details_info, pmd->details_root,
1268 &key, &pmd->details_root);
1272 r = dm_btree_remove(&pmd->tl_info, pmd->root, &key, &pmd->root);
1279 int dm_pool_delete_thin_device(struct dm_pool_metadata *pmd,
1284 pmd_write_lock(pmd);
1285 if (!pmd->fail_io)
1286 r = __delete_device(pmd, dev);
1287 pmd_write_unlock(pmd);
1292 int dm_pool_set_metadata_transaction_id(struct dm_pool_metadata *pmd,
1298 pmd_write_lock(pmd);
1300 if (pmd->fail_io)
1303 if (pmd->trans_id != current_id) {
1308 pmd->trans_id = new_id;
1312 pmd_write_unlock(pmd);
1317 int dm_pool_get_metadata_transaction_id(struct dm_pool_metadata *pmd,
1322 down_read(&pmd->root_lock);
1323 if (!pmd->fail_io) {
1324 *result = pmd->trans_id;
1327 up_read(&pmd->root_lock);
1332 static int __reserve_metadata_snap(struct dm_pool_metadata *pmd)
1343 r = __commit_transaction(pmd);
1353 dm_sm_inc_block(pmd->metadata_sm, THIN_SUPERBLOCK_LOCATION);
1354 r = dm_tm_shadow_block(pmd->tm, THIN_SUPERBLOCK_LOCATION,
1367 dm_tm_dec(pmd->tm, held_root);
1368 dm_tm_unlock(pmd->tm, copy);
1383 dm_tm_inc(pmd->tm, le64_to_cpu(disk_super->data_mapping_root));
1384 dm_tm_inc(pmd->tm, le64_to_cpu(disk_super->device_details_root));
1385 dm_tm_unlock(pmd->tm, copy);
1390 r = superblock_lock(pmd, &sblock);
1392 dm_tm_dec(pmd->tm, held_root);
1402 int dm_pool_reserve_metadata_snap(struct dm_pool_metadata *pmd)
1406 pmd_write_lock(pmd);
1407 if (!pmd->fail_io)
1408 r = __reserve_metadata_snap(pmd);
1409 pmd_write_unlock(pmd);
1414 static int __release_metadata_snap(struct dm_pool_metadata *pmd)
1421 r = superblock_lock(pmd, &sblock);
1436 r = dm_tm_read_lock(pmd->tm, held_root, &sb_validator, ©);
1441 dm_btree_del(&pmd->info, le64_to_cpu(disk_super->data_mapping_root));
1442 dm_btree_del(&pmd->details_info, le64_to_cpu(disk_super->device_details_root));
1443 dm_sm_dec_block(pmd->metadata_sm, held_root);
1445 dm_tm_unlock(pmd->tm, copy);
1450 int dm_pool_release_metadata_snap(struct dm_pool_metadata *pmd)
1454 pmd_write_lock(pmd);
1455 if (!pmd->fail_io)
1456 r = __release_metadata_snap(pmd);
1457 pmd_write_unlock(pmd);
1462 static int __get_metadata_snap(struct dm_pool_metadata *pmd,
1469 r = dm_bm_read_lock(pmd->bm, THIN_SUPERBLOCK_LOCATION,
1482 int dm_pool_get_metadata_snap(struct dm_pool_metadata *pmd,
1487 down_read(&pmd->root_lock);
1488 if (!pmd->fail_io)
1489 r = __get_metadata_snap(pmd, result);
1490 up_read(&pmd->root_lock);
1495 int dm_pool_open_thin_device(struct dm_pool_metadata *pmd, dm_thin_id dev,
1500 pmd_write_lock_in_core(pmd);
1501 if (!pmd->fail_io)
1502 r = __open_device(pmd, dev, 0, td);
1503 pmd_write_unlock(pmd);
1510 pmd_write_lock_in_core(td->pmd);
1512 pmd_write_unlock(td->pmd);
1551 struct dm_pool_metadata *pmd = td->pmd;
1556 info = &pmd->info;
1558 info = &pmd->nb_info;
1560 r = dm_btree_lookup(info, pmd->root, keys, &value);
1571 struct dm_pool_metadata *pmd = td->pmd;
1573 down_read(&pmd->root_lock);
1574 if (pmd->fail_io) {
1575 up_read(&pmd->root_lock);
1581 up_read(&pmd->root_lock);
1591 struct dm_pool_metadata *pmd = td->pmd;
1594 r = dm_btree_lookup_next(&pmd->info, pmd->root, keys, vblock, &value);
1653 struct dm_pool_metadata *pmd = td->pmd;
1655 down_read(&pmd->root_lock);
1656 if (!pmd->fail_io) {
1660 up_read(&pmd->root_lock);
1670 struct dm_pool_metadata *pmd = td->pmd;
1673 value = cpu_to_le64(pack_block_time(data_block, pmd->time));
1676 r = dm_btree_insert_notify(&pmd->info, pmd->root, keys, &value,
1677 &pmd->root, &inserted);
1693 pmd_write_lock(td->pmd);
1694 if (!td->pmd->fail_io)
1696 pmd_write_unlock(td->pmd);
1705 struct dm_pool_metadata *pmd = td->pmd;
1713 r = dm_btree_lookup(&pmd->tl_info, pmd->root, keys, &value);
1722 dm_tm_inc(pmd->tm, mapping_root);
1723 r = dm_btree_remove(&pmd->tl_info, pmd->root, keys, &pmd->root);
1732 r = dm_btree_lookup_next(&pmd->bl_info, mapping_root, &begin, &begin, &value);
1742 r = dm_btree_remove_leaves(&pmd->bl_info, mapping_root, &begin, end, &mapping_root, &count);
1757 return dm_btree_insert(&pmd->tl_info, pmd->root, keys, &value, &pmd->root);
1765 pmd_write_lock(td->pmd);
1766 if (!td->pmd->fail_io)
1768 pmd_write_unlock(td->pmd);
1773 int dm_pool_block_is_shared(struct dm_pool_metadata *pmd, dm_block_t b, bool *result)
1778 down_read(&pmd->root_lock);
1779 if (!pmd->fail_io) {
1780 r = dm_sm_get_count(pmd->data_sm, b, &ref_count);
1784 up_read(&pmd->root_lock);
1789 int dm_pool_inc_data_range(struct dm_pool_metadata *pmd, dm_block_t b, dm_block_t e)
1793 pmd_write_lock(pmd);
1794 if (!pmd->fail_io)
1795 r = dm_sm_inc_blocks(pmd->data_sm, b, e);
1796 pmd_write_unlock(pmd);
1801 int dm_pool_dec_data_range(struct dm_pool_metadata *pmd, dm_block_t b, dm_block_t e)
1805 pmd_write_lock(pmd);
1806 if (!pmd->fail_io)
1807 r = dm_sm_dec_blocks(pmd->data_sm, b, e);
1808 pmd_write_unlock(pmd);
1817 down_read(&td->pmd->root_lock);
1819 up_read(&td->pmd->root_lock);
1824 bool dm_pool_changed_this_transaction(struct dm_pool_metadata *pmd)
1829 down_read(&pmd->root_lock);
1830 list_for_each_entry_safe(td, tmp, &pmd->thin_devices, list) {
1836 up_read(&pmd->root_lock);
1845 down_read(&td->pmd->root_lock);
1847 up_read(&td->pmd->root_lock);
1852 int dm_pool_alloc_data_block(struct dm_pool_metadata *pmd, dm_block_t *result)
1856 pmd_write_lock(pmd);
1857 if (!pmd->fail_io)
1858 r = dm_sm_new_block(pmd->data_sm, result);
1859 pmd_write_unlock(pmd);
1864 int dm_pool_commit_metadata(struct dm_pool_metadata *pmd)
1872 pmd_write_lock_in_core(pmd);
1873 if (pmd->fail_io)
1876 r = __commit_transaction(pmd);
1883 r = __begin_transaction(pmd);
1885 pmd_write_unlock(pmd);
1889 static void __set_abort_with_changes_flags(struct dm_pool_metadata *pmd)
1893 list_for_each_entry(td, &pmd->thin_devices, list)
1897 int dm_pool_abort_metadata(struct dm_pool_metadata *pmd)
1901 /* fail_io is double-checked with pmd->root_lock held below */
1902 if (unlikely(pmd->fail_io))
1905 pmd_write_lock(pmd);
1906 if (pmd->fail_io) {
1907 pmd_write_unlock(pmd);
1910 __set_abort_with_changes_flags(pmd);
1913 __destroy_persistent_data_objects(pmd, false);
1916 dm_block_manager_reset(pmd->bm);
1919 r = __open_or_format_metadata(pmd, false);
1921 pmd->fail_io = true;
1922 pmd_write_unlock(pmd);
1926 int dm_pool_get_free_block_count(struct dm_pool_metadata *pmd, dm_block_t *result)
1930 down_read(&pmd->root_lock);
1931 if (!pmd->fail_io)
1932 r = dm_sm_get_nr_free(pmd->data_sm, result);
1933 up_read(&pmd->root_lock);
1938 int dm_pool_get_free_metadata_block_count(struct dm_pool_metadata *pmd,
1943 down_read(&pmd->root_lock);
1944 if (!pmd->fail_io)
1945 r = dm_sm_get_nr_free(pmd->metadata_sm, result);
1948 if (*result < pmd->metadata_reserve)
1951 *result -= pmd->metadata_reserve;
1953 up_read(&pmd->root_lock);
1958 int dm_pool_get_metadata_dev_size(struct dm_pool_metadata *pmd,
1963 down_read(&pmd->root_lock);
1964 if (!pmd->fail_io)
1965 r = dm_sm_get_nr_blocks(pmd->metadata_sm, result);
1966 up_read(&pmd->root_lock);
1971 int dm_pool_get_data_dev_size(struct dm_pool_metadata *pmd, dm_block_t *result)
1975 down_read(&pmd->root_lock);
1976 if (!pmd->fail_io)
1977 r = dm_sm_get_nr_blocks(pmd->data_sm, result);
1978 up_read(&pmd->root_lock);
1986 struct dm_pool_metadata *pmd = td->pmd;
1988 down_read(&pmd->root_lock);
1989 if (!pmd->fail_io) {
1993 up_read(&pmd->root_lock);
2003 struct dm_pool_metadata *pmd = td->pmd;
2005 r = dm_btree_lookup(&pmd->tl_info, pmd->root, &td->id, &value_le);
2011 return dm_btree_find_highest_key(&pmd->bl_info, thin_root, result);
2018 struct dm_pool_metadata *pmd = td->pmd;
2020 down_read(&pmd->root_lock);
2021 if (!pmd->fail_io)
2023 up_read(&pmd->root_lock);
2048 int dm_pool_resize_data_dev(struct dm_pool_metadata *pmd, dm_block_t new_count)
2052 pmd_write_lock(pmd);
2053 if (!pmd->fail_io)
2054 r = __resize_space_map(pmd->data_sm, new_count);
2055 pmd_write_unlock(pmd);
2060 int dm_pool_resize_metadata_dev(struct dm_pool_metadata *pmd, dm_block_t new_count)
2064 pmd_write_lock(pmd);
2065 if (!pmd->fail_io) {
2066 r = __resize_space_map(pmd->metadata_sm, new_count);
2068 __set_metadata_reserve(pmd);
2070 pmd_write_unlock(pmd);
2075 void dm_pool_metadata_read_only(struct dm_pool_metadata *pmd)
2077 pmd_write_lock_in_core(pmd);
2078 dm_bm_set_read_only(pmd->bm);
2079 pmd_write_unlock(pmd);
2082 void dm_pool_metadata_read_write(struct dm_pool_metadata *pmd)
2084 pmd_write_lock_in_core(pmd);
2085 dm_bm_set_read_write(pmd->bm);
2086 pmd_write_unlock(pmd);
2089 int dm_pool_register_metadata_threshold(struct dm_pool_metadata *pmd,
2096 pmd_write_lock_in_core(pmd);
2097 if (!pmd->fail_io) {
2098 r = dm_sm_register_threshold_callback(pmd->metadata_sm,
2101 pmd_write_unlock(pmd);
2106 void dm_pool_register_pre_commit_callback(struct dm_pool_metadata *pmd,
2110 pmd_write_lock_in_core(pmd);
2111 pmd->pre_commit_fn = fn;
2112 pmd->pre_commit_context = context;
2113 pmd_write_unlock(pmd);
2116 int dm_pool_metadata_set_needs_check(struct dm_pool_metadata *pmd)
2122 pmd_write_lock(pmd);
2123 if (pmd->fail_io)
2126 pmd->flags |= THIN_METADATA_NEEDS_CHECK_FLAG;
2128 r = superblock_lock(pmd, &sblock);
2135 disk_super->flags = cpu_to_le32(pmd->flags);
2139 pmd_write_unlock(pmd);
2143 bool dm_pool_metadata_needs_check(struct dm_pool_metadata *pmd)
2147 down_read(&pmd->root_lock);
2148 needs_check = pmd->flags & THIN_METADATA_NEEDS_CHECK_FLAG;
2149 up_read(&pmd->root_lock);
2154 void dm_pool_issue_prefetches(struct dm_pool_metadata *pmd)
2156 down_read(&pmd->root_lock);
2157 if (!pmd->fail_io)
2158 dm_tm_issue_prefetches(pmd->tm);
2159 up_read(&pmd->root_lock);