Lines Matching refs:root
55 static void btrfs_destroy_ordered_extents(struct btrfs_root *root);
58 static void btrfs_destroy_delalloc_inodes(struct btrfs_root *root);
850 struct btrfs_fs_info *fs_info = BTRFS_I(inode)->root->fs_info; in btrfs_wq_submit_bio()
879 struct btrfs_root *root; in btree_csum_one_bio() local
885 root = BTRFS_I(bvec->bv_page->mapping->host)->root; in btree_csum_one_bio()
886 ret = csum_dirty_buffer(root->fs_info, bvec); in btree_csum_one_bio()
990 fs_info = BTRFS_I(mapping->host)->root->fs_info; in btree_writepages()
1017 btrfs_warn(BTRFS_I(page->mapping->host)->root->fs_info, in btree_invalidatepage()
1139 static void __setup_root(struct btrfs_root *root, struct btrfs_fs_info *fs_info, in __setup_root() argument
1143 root->fs_info = fs_info; in __setup_root()
1144 root->node = NULL; in __setup_root()
1145 root->commit_root = NULL; in __setup_root()
1146 root->state = 0; in __setup_root()
1147 root->orphan_cleanup_state = 0; in __setup_root()
1149 root->last_trans = 0; in __setup_root()
1150 root->free_objectid = 0; in __setup_root()
1151 root->nr_delalloc_inodes = 0; in __setup_root()
1152 root->nr_ordered_extents = 0; in __setup_root()
1153 root->inode_tree = RB_ROOT; in __setup_root()
1154 INIT_RADIX_TREE(&root->delayed_nodes_tree, GFP_ATOMIC); in __setup_root()
1155 root->block_rsv = NULL; in __setup_root()
1157 INIT_LIST_HEAD(&root->dirty_list); in __setup_root()
1158 INIT_LIST_HEAD(&root->root_list); in __setup_root()
1159 INIT_LIST_HEAD(&root->delalloc_inodes); in __setup_root()
1160 INIT_LIST_HEAD(&root->delalloc_root); in __setup_root()
1161 INIT_LIST_HEAD(&root->ordered_extents); in __setup_root()
1162 INIT_LIST_HEAD(&root->ordered_root); in __setup_root()
1163 INIT_LIST_HEAD(&root->reloc_dirty_list); in __setup_root()
1164 INIT_LIST_HEAD(&root->logged_list[0]); in __setup_root()
1165 INIT_LIST_HEAD(&root->logged_list[1]); in __setup_root()
1166 spin_lock_init(&root->inode_lock); in __setup_root()
1167 spin_lock_init(&root->delalloc_lock); in __setup_root()
1168 spin_lock_init(&root->ordered_extent_lock); in __setup_root()
1169 spin_lock_init(&root->accounting_lock); in __setup_root()
1170 spin_lock_init(&root->log_extents_lock[0]); in __setup_root()
1171 spin_lock_init(&root->log_extents_lock[1]); in __setup_root()
1172 spin_lock_init(&root->qgroup_meta_rsv_lock); in __setup_root()
1173 mutex_init(&root->objectid_mutex); in __setup_root()
1174 mutex_init(&root->log_mutex); in __setup_root()
1175 mutex_init(&root->ordered_extent_mutex); in __setup_root()
1176 mutex_init(&root->delalloc_mutex); in __setup_root()
1177 init_waitqueue_head(&root->qgroup_flush_wait); in __setup_root()
1178 init_waitqueue_head(&root->log_writer_wait); in __setup_root()
1179 init_waitqueue_head(&root->log_commit_wait[0]); in __setup_root()
1180 init_waitqueue_head(&root->log_commit_wait[1]); in __setup_root()
1181 INIT_LIST_HEAD(&root->log_ctxs[0]); in __setup_root()
1182 INIT_LIST_HEAD(&root->log_ctxs[1]); in __setup_root()
1183 atomic_set(&root->log_commit[0], 0); in __setup_root()
1184 atomic_set(&root->log_commit[1], 0); in __setup_root()
1185 atomic_set(&root->log_writers, 0); in __setup_root()
1186 atomic_set(&root->log_batch, 0); in __setup_root()
1187 refcount_set(&root->refs, 1); in __setup_root()
1188 atomic_set(&root->snapshot_force_cow, 0); in __setup_root()
1189 atomic_set(&root->nr_swapfiles, 0); in __setup_root()
1190 root->log_transid = 0; in __setup_root()
1191 root->log_transid_committed = -1; in __setup_root()
1192 root->last_log_commit = 0; in __setup_root()
1194 extent_io_tree_init(fs_info, &root->dirty_log_pages, in __setup_root()
1196 extent_io_tree_init(fs_info, &root->log_csum_range, in __setup_root()
1200 memset(&root->root_key, 0, sizeof(root->root_key)); in __setup_root()
1201 memset(&root->root_item, 0, sizeof(root->root_item)); in __setup_root()
1202 memset(&root->defrag_progress, 0, sizeof(root->defrag_progress)); in __setup_root()
1203 root->root_key.objectid = objectid; in __setup_root()
1204 root->anon_dev = 0; in __setup_root()
1206 spin_lock_init(&root->root_item_lock); in __setup_root()
1207 btrfs_qgroup_init_swapped_blocks(&root->swapped_blocks); in __setup_root()
1209 INIT_LIST_HEAD(&root->leak_list); in __setup_root()
1211 list_add_tail(&root->leak_list, &fs_info->allocated_roots); in __setup_root()
1219 struct btrfs_root *root = kzalloc(sizeof(*root), flags); in btrfs_alloc_root() local
1220 if (root) in btrfs_alloc_root()
1221 __setup_root(root, fs_info, objectid); in btrfs_alloc_root()
1222 return root; in btrfs_alloc_root()
1229 struct btrfs_root *root; in btrfs_alloc_dummy_root() local
1234 root = btrfs_alloc_root(fs_info, BTRFS_ROOT_TREE_OBJECTID, GFP_KERNEL); in btrfs_alloc_dummy_root()
1235 if (!root) in btrfs_alloc_dummy_root()
1239 root->alloc_bytenr = 0; in btrfs_alloc_dummy_root()
1241 return root; in btrfs_alloc_dummy_root()
1251 struct btrfs_root *root; in btrfs_create_tree() local
1261 root = btrfs_alloc_root(fs_info, objectid, GFP_KERNEL); in btrfs_create_tree()
1263 if (!root) in btrfs_create_tree()
1266 root->root_key.objectid = objectid; in btrfs_create_tree()
1267 root->root_key.type = BTRFS_ROOT_ITEM_KEY; in btrfs_create_tree()
1268 root->root_key.offset = 0; in btrfs_create_tree()
1270 leaf = btrfs_alloc_tree_block(trans, root, 0, objectid, NULL, 0, 0, 0, in btrfs_create_tree()
1278 root->node = leaf; in btrfs_create_tree()
1281 root->commit_root = btrfs_root_node(root); in btrfs_create_tree()
1282 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_create_tree()
1284 btrfs_set_root_flags(&root->root_item, 0); in btrfs_create_tree()
1285 btrfs_set_root_limit(&root->root_item, 0); in btrfs_create_tree()
1286 btrfs_set_root_bytenr(&root->root_item, leaf->start); in btrfs_create_tree()
1287 btrfs_set_root_generation(&root->root_item, trans->transid); in btrfs_create_tree()
1288 btrfs_set_root_level(&root->root_item, 0); in btrfs_create_tree()
1289 btrfs_set_root_refs(&root->root_item, 1); in btrfs_create_tree()
1290 btrfs_set_root_used(&root->root_item, leaf->len); in btrfs_create_tree()
1291 btrfs_set_root_last_snapshot(&root->root_item, 0); in btrfs_create_tree()
1292 btrfs_set_root_dirid(&root->root_item, 0); in btrfs_create_tree()
1294 generate_random_guid(root->root_item.uuid); in btrfs_create_tree()
1296 export_guid(root->root_item.uuid, &guid_null); in btrfs_create_tree()
1297 btrfs_set_root_drop_level(&root->root_item, 0); in btrfs_create_tree()
1304 ret = btrfs_insert_root(trans, tree_root, &key, &root->root_item); in btrfs_create_tree()
1308 return root; in btrfs_create_tree()
1314 btrfs_put_root(root); in btrfs_create_tree()
1322 struct btrfs_root *root; in alloc_log_tree() local
1324 root = btrfs_alloc_root(fs_info, BTRFS_TREE_LOG_OBJECTID, GFP_NOFS); in alloc_log_tree()
1325 if (!root) in alloc_log_tree()
1328 root->root_key.objectid = BTRFS_TREE_LOG_OBJECTID; in alloc_log_tree()
1329 root->root_key.type = BTRFS_ROOT_ITEM_KEY; in alloc_log_tree()
1330 root->root_key.offset = BTRFS_TREE_LOG_OBJECTID; in alloc_log_tree()
1332 return root; in alloc_log_tree()
1336 struct btrfs_root *root) in btrfs_alloc_log_tree_node() argument
1350 leaf = btrfs_alloc_tree_block(trans, root, 0, BTRFS_TREE_LOG_OBJECTID, in btrfs_alloc_log_tree_node()
1355 root->node = leaf; in btrfs_alloc_log_tree_node()
1357 btrfs_mark_buffer_dirty(root->node); in btrfs_alloc_log_tree_node()
1358 btrfs_tree_unlock(root->node); in btrfs_alloc_log_tree_node()
1387 struct btrfs_root *root) in btrfs_add_log_tree() argument
1389 struct btrfs_fs_info *fs_info = root->fs_info; in btrfs_add_log_tree()
1405 log_root->root_key.offset = root->root_key.objectid; in btrfs_add_log_tree()
1417 WARN_ON(root->log_root); in btrfs_add_log_tree()
1418 root->log_root = log_root; in btrfs_add_log_tree()
1419 root->log_transid = 0; in btrfs_add_log_tree()
1420 root->log_transid_committed = -1; in btrfs_add_log_tree()
1421 root->last_log_commit = 0; in btrfs_add_log_tree()
1429 struct btrfs_root *root; in read_tree_root_path() local
1435 root = btrfs_alloc_root(fs_info, key->objectid, GFP_NOFS); in read_tree_root_path()
1436 if (!root) in read_tree_root_path()
1440 &root->root_item, &root->root_key); in read_tree_root_path()
1447 generation = btrfs_root_generation(&root->root_item); in read_tree_root_path()
1448 level = btrfs_root_level(&root->root_item); in read_tree_root_path()
1449 root->node = read_tree_block(fs_info, in read_tree_root_path()
1450 btrfs_root_bytenr(&root->root_item), in read_tree_root_path()
1452 if (IS_ERR(root->node)) { in read_tree_root_path()
1453 ret = PTR_ERR(root->node); in read_tree_root_path()
1454 root->node = NULL; in read_tree_root_path()
1456 } else if (!btrfs_buffer_uptodate(root->node, generation, 0)) { in read_tree_root_path()
1460 root->commit_root = btrfs_root_node(root); in read_tree_root_path()
1461 return root; in read_tree_root_path()
1463 btrfs_put_root(root); in read_tree_root_path()
1470 struct btrfs_root *root; in btrfs_read_tree_root() local
1476 root = read_tree_root_path(tree_root, path, key); in btrfs_read_tree_root()
1479 return root; in btrfs_read_tree_root()
1487 static int btrfs_init_fs_root(struct btrfs_root *root, dev_t anon_dev) in btrfs_init_fs_root() argument
1497 ret = btrfs_drew_lock_init(&root->snapshot_lock); in btrfs_init_fs_root()
1502 if (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID && in btrfs_init_fs_root()
1503 !btrfs_is_data_reloc_root(root)) { in btrfs_init_fs_root()
1504 set_bit(BTRFS_ROOT_SHAREABLE, &root->state); in btrfs_init_fs_root()
1505 btrfs_check_and_init_root_item(&root->root_item); in btrfs_init_fs_root()
1512 if (is_fstree(root->root_key.objectid) && in btrfs_init_fs_root()
1513 btrfs_root_refs(&root->root_item) > 0) { in btrfs_init_fs_root()
1515 ret = get_anon_bdev(&root->anon_dev); in btrfs_init_fs_root()
1519 root->anon_dev = anon_dev; in btrfs_init_fs_root()
1523 mutex_lock(&root->objectid_mutex); in btrfs_init_fs_root()
1524 ret = btrfs_init_root_free_objectid(root); in btrfs_init_fs_root()
1526 mutex_unlock(&root->objectid_mutex); in btrfs_init_fs_root()
1530 ASSERT(root->free_objectid <= BTRFS_LAST_FREE_OBJECTID); in btrfs_init_fs_root()
1532 mutex_unlock(&root->objectid_mutex); in btrfs_init_fs_root()
1543 struct btrfs_root *root; in btrfs_lookup_fs_root() local
1546 root = radix_tree_lookup(&fs_info->fs_roots_radix, in btrfs_lookup_fs_root()
1548 if (root) in btrfs_lookup_fs_root()
1549 root = btrfs_grab_root(root); in btrfs_lookup_fs_root()
1551 return root; in btrfs_lookup_fs_root()
1580 struct btrfs_root *root) in btrfs_insert_fs_root() argument
1590 (unsigned long)root->root_key.objectid, in btrfs_insert_fs_root()
1591 root); in btrfs_insert_fs_root()
1593 btrfs_grab_root(root); in btrfs_insert_fs_root()
1594 set_bit(BTRFS_ROOT_IN_RADIX, &root->state); in btrfs_insert_fs_root()
1605 struct btrfs_root *root; in btrfs_check_leaked_roots() local
1610 root = list_first_entry(&fs_info->allocated_roots, in btrfs_check_leaked_roots()
1613 btrfs_root_name(&root->root_key, buf), in btrfs_check_leaked_roots()
1614 refcount_read(&root->refs)); in btrfs_check_leaked_roots()
1615 while (refcount_read(&root->refs) > 1) in btrfs_check_leaked_roots()
1616 btrfs_put_root(root); in btrfs_check_leaked_roots()
1617 btrfs_put_root(root); in btrfs_check_leaked_roots()
1674 struct btrfs_root *root; in btrfs_get_root_ref() local
1679 root = btrfs_get_global_root(fs_info, objectid); in btrfs_get_root_ref()
1680 if (root) in btrfs_get_root_ref()
1681 return root; in btrfs_get_root_ref()
1683 root = btrfs_lookup_fs_root(fs_info, objectid); in btrfs_get_root_ref()
1684 if (root) { in btrfs_get_root_ref()
1687 if (check_ref && btrfs_root_refs(&root->root_item) == 0) { in btrfs_get_root_ref()
1688 btrfs_put_root(root); in btrfs_get_root_ref()
1691 return root; in btrfs_get_root_ref()
1697 root = btrfs_read_tree_root(fs_info->tree_root, &key); in btrfs_get_root_ref()
1698 if (IS_ERR(root)) in btrfs_get_root_ref()
1699 return root; in btrfs_get_root_ref()
1701 if (check_ref && btrfs_root_refs(&root->root_item) == 0) { in btrfs_get_root_ref()
1706 ret = btrfs_init_fs_root(root, anon_dev); in btrfs_get_root_ref()
1724 set_bit(BTRFS_ROOT_ORPHAN_ITEM_INSERTED, &root->state); in btrfs_get_root_ref()
1726 ret = btrfs_insert_fs_root(fs_info, root); in btrfs_get_root_ref()
1728 btrfs_put_root(root); in btrfs_get_root_ref()
1733 return root; in btrfs_get_root_ref()
1742 root->anon_dev = 0; in btrfs_get_root_ref()
1743 btrfs_put_root(root); in btrfs_get_root_ref()
1792 struct btrfs_root *root; in btrfs_get_fs_root_commit_root() local
1803 root = btrfs_get_global_root(fs_info, objectid); in btrfs_get_fs_root_commit_root()
1804 if (root) in btrfs_get_fs_root_commit_root()
1805 return root; in btrfs_get_fs_root_commit_root()
1807 root = btrfs_lookup_fs_root(fs_info, objectid); in btrfs_get_fs_root_commit_root()
1808 if (root) in btrfs_get_fs_root_commit_root()
1809 return root; in btrfs_get_fs_root_commit_root()
1814 root = read_tree_root_path(fs_info->tree_root, path, &key); in btrfs_get_fs_root_commit_root()
1817 return root; in btrfs_get_fs_root_commit_root()
1841 struct btrfs_root *root = arg; in cleaner_kthread() local
1842 struct btrfs_fs_info *fs_info = root->fs_info; in cleaner_kthread()
1875 again = btrfs_clean_one_deleted_snapshot(root); in cleaner_kthread()
1916 struct btrfs_root *root = arg; in transaction_kthread() local
1917 struct btrfs_fs_info *fs_info = root->fs_info; in transaction_kthread()
1950 trans = btrfs_attach_transaction(root); in transaction_kthread()
2152 static void free_root_extent_buffers(struct btrfs_root *root) in free_root_extent_buffers() argument
2154 if (root) { in free_root_extent_buffers()
2155 free_extent_buffer(root->node); in free_root_extent_buffers()
2156 free_extent_buffer(root->commit_root); in free_root_extent_buffers()
2157 root->node = NULL; in free_root_extent_buffers()
2158 root->commit_root = NULL; in free_root_extent_buffers()
2179 void btrfs_put_root(struct btrfs_root *root) in btrfs_put_root() argument
2181 if (!root) in btrfs_put_root()
2184 if (refcount_dec_and_test(&root->refs)) { in btrfs_put_root()
2185 WARN_ON(!RB_EMPTY_ROOT(&root->inode_tree)); in btrfs_put_root()
2186 WARN_ON(test_bit(BTRFS_ROOT_DEAD_RELOC_TREE, &root->state)); in btrfs_put_root()
2187 if (root->anon_dev) in btrfs_put_root()
2188 free_anon_bdev(root->anon_dev); in btrfs_put_root()
2189 btrfs_drew_lock_destroy(&root->snapshot_lock); in btrfs_put_root()
2190 free_root_extent_buffers(root); in btrfs_put_root()
2192 spin_lock(&root->fs_info->fs_roots_radix_lock); in btrfs_put_root()
2193 list_del_init(&root->leak_list); in btrfs_put_root()
2194 spin_unlock(&root->fs_info->fs_roots_radix_lock); in btrfs_put_root()
2196 kfree(root); in btrfs_put_root()
2269 BTRFS_I(inode)->root = btrfs_grab_root(fs_info->tree_root); in btrfs_init_btree_inode()
2441 struct btrfs_root *root; in btrfs_read_roots() local
2451 root = btrfs_read_tree_root(tree_root, &location); in btrfs_read_roots()
2452 if (IS_ERR(root)) { in btrfs_read_roots()
2454 ret = PTR_ERR(root); in btrfs_read_roots()
2458 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2459 fs_info->extent_root = root; in btrfs_read_roots()
2463 root = btrfs_read_tree_root(tree_root, &location); in btrfs_read_roots()
2464 if (IS_ERR(root)) { in btrfs_read_roots()
2466 ret = PTR_ERR(root); in btrfs_read_roots()
2470 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2471 fs_info->dev_root = root; in btrfs_read_roots()
2479 root = btrfs_read_tree_root(tree_root, &location); in btrfs_read_roots()
2480 if (IS_ERR(root)) { in btrfs_read_roots()
2482 ret = PTR_ERR(root); in btrfs_read_roots()
2486 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2487 fs_info->csum_root = root; in btrfs_read_roots()
2495 root = btrfs_get_fs_root(tree_root->fs_info, in btrfs_read_roots()
2497 if (IS_ERR(root)) { in btrfs_read_roots()
2499 ret = PTR_ERR(root); in btrfs_read_roots()
2503 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2504 fs_info->data_reloc_root = root; in btrfs_read_roots()
2508 root = btrfs_read_tree_root(tree_root, &location); in btrfs_read_roots()
2509 if (!IS_ERR(root)) { in btrfs_read_roots()
2510 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2512 fs_info->quota_root = root; in btrfs_read_roots()
2516 root = btrfs_read_tree_root(tree_root, &location); in btrfs_read_roots()
2517 if (IS_ERR(root)) { in btrfs_read_roots()
2519 ret = PTR_ERR(root); in btrfs_read_roots()
2524 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2525 fs_info->uuid_root = root; in btrfs_read_roots()
2530 root = btrfs_read_tree_root(tree_root, &location); in btrfs_read_roots()
2531 if (IS_ERR(root)) { in btrfs_read_roots()
2533 ret = PTR_ERR(root); in btrfs_read_roots()
2537 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2538 fs_info->free_space_root = root; in btrfs_read_roots()
4243 struct btrfs_root *root) in btrfs_drop_and_free_fs_root() argument
4249 (unsigned long)root->root_key.objectid); in btrfs_drop_and_free_fs_root()
4250 if (test_and_clear_bit(BTRFS_ROOT_IN_RADIX, &root->state)) in btrfs_drop_and_free_fs_root()
4255 ASSERT(root->log_root == NULL); in btrfs_drop_and_free_fs_root()
4256 if (root->reloc_root) { in btrfs_drop_and_free_fs_root()
4257 btrfs_put_root(root->reloc_root); in btrfs_drop_and_free_fs_root()
4258 root->reloc_root = NULL; in btrfs_drop_and_free_fs_root()
4263 btrfs_put_root(root); in btrfs_drop_and_free_fs_root()
4318 struct btrfs_root *root = fs_info->tree_root; in btrfs_commit_super() local
4330 trans = btrfs_join_transaction(root); in btrfs_commit_super()
4608 static void btrfs_destroy_ordered_extents(struct btrfs_root *root) in btrfs_destroy_ordered_extents() argument
4612 spin_lock(&root->ordered_extent_lock); in btrfs_destroy_ordered_extents()
4617 list_for_each_entry(ordered, &root->ordered_extents, in btrfs_destroy_ordered_extents()
4620 spin_unlock(&root->ordered_extent_lock); in btrfs_destroy_ordered_extents()
4625 struct btrfs_root *root; in btrfs_destroy_all_ordered_extents() local
4633 root = list_first_entry(&splice, struct btrfs_root, in btrfs_destroy_all_ordered_extents()
4635 list_move_tail(&root->ordered_root, in btrfs_destroy_all_ordered_extents()
4639 btrfs_destroy_ordered_extents(root); in btrfs_destroy_all_ordered_extents()
4735 static void btrfs_destroy_delalloc_inodes(struct btrfs_root *root) in btrfs_destroy_delalloc_inodes() argument
4742 spin_lock(&root->delalloc_lock); in btrfs_destroy_delalloc_inodes()
4743 list_splice_init(&root->delalloc_inodes, &splice); in btrfs_destroy_delalloc_inodes()
4749 __btrfs_del_delalloc_inode(root, btrfs_inode); in btrfs_destroy_delalloc_inodes()
4750 spin_unlock(&root->delalloc_lock); in btrfs_destroy_delalloc_inodes()
4761 spin_lock(&root->delalloc_lock); in btrfs_destroy_delalloc_inodes()
4763 spin_unlock(&root->delalloc_lock); in btrfs_destroy_delalloc_inodes()
4768 struct btrfs_root *root; in btrfs_destroy_all_delalloc_inodes() local
4776 root = list_first_entry(&splice, struct btrfs_root, in btrfs_destroy_all_delalloc_inodes()
4778 root = btrfs_grab_root(root); in btrfs_destroy_all_delalloc_inodes()
4779 BUG_ON(!root); in btrfs_destroy_all_delalloc_inodes()
4782 btrfs_destroy_delalloc_inodes(root); in btrfs_destroy_all_delalloc_inodes()
4783 btrfs_put_root(root); in btrfs_destroy_all_delalloc_inodes()
5006 int btrfs_init_root_free_objectid(struct btrfs_root *root) in btrfs_init_root_free_objectid() argument
5022 ret = btrfs_search_slot(NULL, root, &search_key, path, 0, 0); in btrfs_init_root_free_objectid()
5030 root->free_objectid = max_t(u64, found_key.objectid + 1, in btrfs_init_root_free_objectid()
5033 root->free_objectid = BTRFS_FIRST_FREE_OBJECTID; in btrfs_init_root_free_objectid()
5041 int btrfs_get_free_objectid(struct btrfs_root *root, u64 *objectid) in btrfs_get_free_objectid() argument
5044 mutex_lock(&root->objectid_mutex); in btrfs_get_free_objectid()
5046 if (unlikely(root->free_objectid >= BTRFS_LAST_FREE_OBJECTID)) { in btrfs_get_free_objectid()
5047 btrfs_warn(root->fs_info, in btrfs_get_free_objectid()
5049 root->root_key.objectid); in btrfs_get_free_objectid()
5054 *objectid = root->free_objectid++; in btrfs_get_free_objectid()
5057 mutex_unlock(&root->objectid_mutex); in btrfs_get_free_objectid()