Lines Matching refs:root
56 static void btrfs_destroy_ordered_extents(struct btrfs_root *root);
59 static void btrfs_destroy_delalloc_inodes(struct btrfs_root *root);
210 struct btrfs_fs_info *fs_info = inode->root->fs_info; in btree_get_extent()
587 struct btrfs_root *root = BTRFS_I(page->mapping->host)->root; in btree_readpage_end_io_hook() local
588 struct btrfs_fs_info *fs_info = root->fs_info; in btree_readpage_end_io_hook()
822 struct btrfs_root *root; in btree_csum_one_bio() local
827 root = BTRFS_I(bvec->bv_page->mapping->host)->root; in btree_csum_one_bio()
828 ret = csum_dirty_buffer(root->fs_info, bvec->bv_page); in btree_csum_one_bio()
935 fs_info = BTRFS_I(mapping->host)->root->fs_info; in btree_writepages()
969 btrfs_warn(BTRFS_I(page->mapping->host)->root->fs_info, in btree_invalidatepage()
1149 static void __setup_root(struct btrfs_root *root, struct btrfs_fs_info *fs_info, in __setup_root() argument
1153 root->node = NULL; in __setup_root()
1154 root->commit_root = NULL; in __setup_root()
1155 root->state = 0; in __setup_root()
1156 root->orphan_cleanup_state = 0; in __setup_root()
1158 root->objectid = objectid; in __setup_root()
1159 root->last_trans = 0; in __setup_root()
1160 root->highest_objectid = 0; in __setup_root()
1161 root->nr_delalloc_inodes = 0; in __setup_root()
1162 root->nr_ordered_extents = 0; in __setup_root()
1163 root->inode_tree = RB_ROOT; in __setup_root()
1164 INIT_RADIX_TREE(&root->delayed_nodes_tree, GFP_ATOMIC); in __setup_root()
1165 root->block_rsv = NULL; in __setup_root()
1167 INIT_LIST_HEAD(&root->dirty_list); in __setup_root()
1168 INIT_LIST_HEAD(&root->root_list); in __setup_root()
1169 INIT_LIST_HEAD(&root->delalloc_inodes); in __setup_root()
1170 INIT_LIST_HEAD(&root->delalloc_root); in __setup_root()
1171 INIT_LIST_HEAD(&root->ordered_extents); in __setup_root()
1172 INIT_LIST_HEAD(&root->ordered_root); in __setup_root()
1173 INIT_LIST_HEAD(&root->logged_list[0]); in __setup_root()
1174 INIT_LIST_HEAD(&root->logged_list[1]); in __setup_root()
1175 spin_lock_init(&root->inode_lock); in __setup_root()
1176 spin_lock_init(&root->delalloc_lock); in __setup_root()
1177 spin_lock_init(&root->ordered_extent_lock); in __setup_root()
1178 spin_lock_init(&root->accounting_lock); in __setup_root()
1179 spin_lock_init(&root->log_extents_lock[0]); in __setup_root()
1180 spin_lock_init(&root->log_extents_lock[1]); in __setup_root()
1181 spin_lock_init(&root->qgroup_meta_rsv_lock); in __setup_root()
1182 mutex_init(&root->objectid_mutex); in __setup_root()
1183 mutex_init(&root->log_mutex); in __setup_root()
1184 mutex_init(&root->ordered_extent_mutex); in __setup_root()
1185 mutex_init(&root->delalloc_mutex); in __setup_root()
1186 init_waitqueue_head(&root->log_writer_wait); in __setup_root()
1187 init_waitqueue_head(&root->log_commit_wait[0]); in __setup_root()
1188 init_waitqueue_head(&root->log_commit_wait[1]); in __setup_root()
1189 INIT_LIST_HEAD(&root->log_ctxs[0]); in __setup_root()
1190 INIT_LIST_HEAD(&root->log_ctxs[1]); in __setup_root()
1191 atomic_set(&root->log_commit[0], 0); in __setup_root()
1192 atomic_set(&root->log_commit[1], 0); in __setup_root()
1193 atomic_set(&root->log_writers, 0); in __setup_root()
1194 atomic_set(&root->log_batch, 0); in __setup_root()
1195 refcount_set(&root->refs, 1); in __setup_root()
1196 atomic_set(&root->will_be_snapshotted, 0); in __setup_root()
1197 atomic_set(&root->snapshot_force_cow, 0); in __setup_root()
1198 root->log_transid = 0; in __setup_root()
1199 root->log_transid_committed = -1; in __setup_root()
1200 root->last_log_commit = 0; in __setup_root()
1202 extent_io_tree_init(&root->dirty_log_pages, NULL); in __setup_root()
1204 memset(&root->root_key, 0, sizeof(root->root_key)); in __setup_root()
1205 memset(&root->root_item, 0, sizeof(root->root_item)); in __setup_root()
1206 memset(&root->defrag_progress, 0, sizeof(root->defrag_progress)); in __setup_root()
1208 root->defrag_trans_start = fs_info->generation; in __setup_root()
1210 root->defrag_trans_start = 0; in __setup_root()
1211 root->root_key.objectid = objectid; in __setup_root()
1212 root->anon_dev = 0; in __setup_root()
1214 spin_lock_init(&root->root_item_lock); in __setup_root()
1220 struct btrfs_root *root = kzalloc(sizeof(*root), flags); in btrfs_alloc_root() local
1221 if (root) in btrfs_alloc_root()
1222 root->fs_info = fs_info; in btrfs_alloc_root()
1223 return root; in btrfs_alloc_root()
1230 struct btrfs_root *root; in btrfs_alloc_dummy_root() local
1235 root = btrfs_alloc_root(fs_info, GFP_KERNEL); in btrfs_alloc_dummy_root()
1236 if (!root) in btrfs_alloc_dummy_root()
1240 __setup_root(root, fs_info, BTRFS_ROOT_TREE_OBJECTID); in btrfs_alloc_dummy_root()
1241 root->alloc_bytenr = 0; in btrfs_alloc_dummy_root()
1243 return root; in btrfs_alloc_dummy_root()
1253 struct btrfs_root *root; in btrfs_create_tree() local
1264 root = btrfs_alloc_root(fs_info, GFP_KERNEL); in btrfs_create_tree()
1266 if (!root) in btrfs_create_tree()
1269 __setup_root(root, fs_info, objectid); in btrfs_create_tree()
1270 root->root_key.objectid = objectid; in btrfs_create_tree()
1271 root->root_key.type = BTRFS_ROOT_ITEM_KEY; in btrfs_create_tree()
1272 root->root_key.offset = 0; in btrfs_create_tree()
1274 leaf = btrfs_alloc_tree_block(trans, root, 0, objectid, NULL, 0, 0, 0); in btrfs_create_tree()
1281 root->node = leaf; in btrfs_create_tree()
1284 root->commit_root = btrfs_root_node(root); in btrfs_create_tree()
1285 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_create_tree()
1287 root->root_item.flags = 0; in btrfs_create_tree()
1288 root->root_item.byte_limit = 0; in btrfs_create_tree()
1289 btrfs_set_root_bytenr(&root->root_item, leaf->start); in btrfs_create_tree()
1290 btrfs_set_root_generation(&root->root_item, trans->transid); in btrfs_create_tree()
1291 btrfs_set_root_level(&root->root_item, 0); in btrfs_create_tree()
1292 btrfs_set_root_refs(&root->root_item, 1); in btrfs_create_tree()
1293 btrfs_set_root_used(&root->root_item, leaf->len); in btrfs_create_tree()
1294 btrfs_set_root_last_snapshot(&root->root_item, 0); in btrfs_create_tree()
1295 btrfs_set_root_dirid(&root->root_item, 0); in btrfs_create_tree()
1298 memcpy(root->root_item.uuid, uuid.b, BTRFS_UUID_SIZE); in btrfs_create_tree()
1299 root->root_item.drop_level = 0; in btrfs_create_tree()
1304 ret = btrfs_insert_root(trans, tree_root, &key, &root->root_item); in btrfs_create_tree()
1310 return root; in btrfs_create_tree()
1315 free_extent_buffer(root->commit_root); in btrfs_create_tree()
1318 kfree(root); in btrfs_create_tree()
1326 struct btrfs_root *root; in alloc_log_tree() local
1329 root = btrfs_alloc_root(fs_info, GFP_NOFS); in alloc_log_tree()
1330 if (!root) in alloc_log_tree()
1333 __setup_root(root, fs_info, BTRFS_TREE_LOG_OBJECTID); in alloc_log_tree()
1335 root->root_key.objectid = BTRFS_TREE_LOG_OBJECTID; in alloc_log_tree()
1336 root->root_key.type = BTRFS_ROOT_ITEM_KEY; in alloc_log_tree()
1337 root->root_key.offset = BTRFS_TREE_LOG_OBJECTID; in alloc_log_tree()
1348 leaf = btrfs_alloc_tree_block(trans, root, 0, BTRFS_TREE_LOG_OBJECTID, in alloc_log_tree()
1351 kfree(root); in alloc_log_tree()
1355 root->node = leaf; in alloc_log_tree()
1357 btrfs_mark_buffer_dirty(root->node); in alloc_log_tree()
1358 btrfs_tree_unlock(root->node); in alloc_log_tree()
1359 return root; in alloc_log_tree()
1376 struct btrfs_root *root) in btrfs_add_log_tree() argument
1378 struct btrfs_fs_info *fs_info = root->fs_info; in btrfs_add_log_tree()
1387 log_root->root_key.offset = root->root_key.objectid; in btrfs_add_log_tree()
1399 WARN_ON(root->log_root); in btrfs_add_log_tree()
1400 root->log_root = log_root; in btrfs_add_log_tree()
1401 root->log_transid = 0; in btrfs_add_log_tree()
1402 root->log_transid_committed = -1; in btrfs_add_log_tree()
1403 root->last_log_commit = 0; in btrfs_add_log_tree()
1410 struct btrfs_root *root; in btrfs_read_tree_root() local
1421 root = btrfs_alloc_root(fs_info, GFP_NOFS); in btrfs_read_tree_root()
1422 if (!root) { in btrfs_read_tree_root()
1427 __setup_root(root, fs_info, key->objectid); in btrfs_read_tree_root()
1430 &root->root_item, &root->root_key); in btrfs_read_tree_root()
1437 generation = btrfs_root_generation(&root->root_item); in btrfs_read_tree_root()
1438 level = btrfs_root_level(&root->root_item); in btrfs_read_tree_root()
1439 root->node = read_tree_block(fs_info, in btrfs_read_tree_root()
1440 btrfs_root_bytenr(&root->root_item), in btrfs_read_tree_root()
1442 if (IS_ERR(root->node)) { in btrfs_read_tree_root()
1443 ret = PTR_ERR(root->node); in btrfs_read_tree_root()
1445 } else if (!btrfs_buffer_uptodate(root->node, generation, 0)) { in btrfs_read_tree_root()
1447 free_extent_buffer(root->node); in btrfs_read_tree_root()
1450 root->commit_root = btrfs_root_node(root); in btrfs_read_tree_root()
1453 return root; in btrfs_read_tree_root()
1456 kfree(root); in btrfs_read_tree_root()
1458 root = ERR_PTR(ret); in btrfs_read_tree_root()
1465 struct btrfs_root *root; in btrfs_read_fs_root() local
1467 root = btrfs_read_tree_root(tree_root, location); in btrfs_read_fs_root()
1468 if (IS_ERR(root)) in btrfs_read_fs_root()
1469 return root; in btrfs_read_fs_root()
1471 if (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID) { in btrfs_read_fs_root()
1472 set_bit(BTRFS_ROOT_REF_COWS, &root->state); in btrfs_read_fs_root()
1473 btrfs_check_and_init_root_item(&root->root_item); in btrfs_read_fs_root()
1476 return root; in btrfs_read_fs_root()
1479 int btrfs_init_fs_root(struct btrfs_root *root) in btrfs_init_fs_root() argument
1484 root->free_ino_ctl = kzalloc(sizeof(*root->free_ino_ctl), GFP_NOFS); in btrfs_init_fs_root()
1485 root->free_ino_pinned = kzalloc(sizeof(*root->free_ino_pinned), in btrfs_init_fs_root()
1487 if (!root->free_ino_pinned || !root->free_ino_ctl) { in btrfs_init_fs_root()
1497 root->subv_writers = writers; in btrfs_init_fs_root()
1499 btrfs_init_free_ino_ctl(root); in btrfs_init_fs_root()
1500 spin_lock_init(&root->ino_cache_lock); in btrfs_init_fs_root()
1501 init_waitqueue_head(&root->ino_cache_wait); in btrfs_init_fs_root()
1507 if (is_fstree(root->root_key.objectid) && in btrfs_init_fs_root()
1508 btrfs_root_refs(&root->root_item) > 0) { in btrfs_init_fs_root()
1509 ret = get_anon_bdev(&root->anon_dev); in btrfs_init_fs_root()
1514 mutex_lock(&root->objectid_mutex); in btrfs_init_fs_root()
1515 ret = btrfs_find_highest_objectid(root, in btrfs_init_fs_root()
1516 &root->highest_objectid); in btrfs_init_fs_root()
1518 mutex_unlock(&root->objectid_mutex); in btrfs_init_fs_root()
1522 ASSERT(root->highest_objectid <= BTRFS_LAST_FREE_OBJECTID); in btrfs_init_fs_root()
1524 mutex_unlock(&root->objectid_mutex); in btrfs_init_fs_root()
1535 struct btrfs_root *root; in btrfs_lookup_fs_root() local
1538 root = radix_tree_lookup(&fs_info->fs_roots_radix, in btrfs_lookup_fs_root()
1541 return root; in btrfs_lookup_fs_root()
1545 struct btrfs_root *root) in btrfs_insert_fs_root() argument
1555 (unsigned long)root->root_key.objectid, in btrfs_insert_fs_root()
1556 root); in btrfs_insert_fs_root()
1558 set_bit(BTRFS_ROOT_IN_RADIX, &root->state); in btrfs_insert_fs_root()
1569 struct btrfs_root *root; in btrfs_get_fs_root() local
1594 root = btrfs_lookup_fs_root(fs_info, location->objectid); in btrfs_get_fs_root()
1595 if (root) { in btrfs_get_fs_root()
1596 if (check_ref && btrfs_root_refs(&root->root_item) == 0) in btrfs_get_fs_root()
1598 return root; in btrfs_get_fs_root()
1601 root = btrfs_read_fs_root(fs_info->tree_root, location); in btrfs_get_fs_root()
1602 if (IS_ERR(root)) in btrfs_get_fs_root()
1603 return root; in btrfs_get_fs_root()
1605 if (check_ref && btrfs_root_refs(&root->root_item) == 0) { in btrfs_get_fs_root()
1610 ret = btrfs_init_fs_root(root); in btrfs_get_fs_root()
1628 set_bit(BTRFS_ROOT_ORPHAN_ITEM_INSERTED, &root->state); in btrfs_get_fs_root()
1630 ret = btrfs_insert_fs_root(fs_info, root); in btrfs_get_fs_root()
1633 btrfs_free_fs_root(root); in btrfs_get_fs_root()
1638 return root; in btrfs_get_fs_root()
1640 btrfs_free_fs_root(root); in btrfs_get_fs_root()
1686 struct btrfs_root *root = arg; in cleaner_kthread() local
1687 struct btrfs_fs_info *fs_info = root->fs_info; in cleaner_kthread()
1720 again = btrfs_clean_one_deleted_snapshot(root); in cleaner_kthread()
1753 struct btrfs_root *root = arg; in transaction_kthread() local
1754 struct btrfs_fs_info *fs_info = root->fs_info; in transaction_kthread()
1787 trans = btrfs_attach_transaction(root); in transaction_kthread()
2040 static void free_root_extent_buffers(struct btrfs_root *root) in free_root_extent_buffers() argument
2042 if (root) { in free_root_extent_buffers()
2043 free_extent_buffer(root->node); in free_root_extent_buffers()
2044 free_extent_buffer(root->commit_root); in free_root_extent_buffers()
2045 root->node = NULL; in free_root_extent_buffers()
2046 root->commit_root = NULL; in free_root_extent_buffers()
2143 BTRFS_I(inode)->root = fs_info->tree_root; in btrfs_init_btree_inode()
2317 struct btrfs_root *root; in btrfs_read_roots() local
2327 root = btrfs_read_tree_root(tree_root, &location); in btrfs_read_roots()
2328 if (IS_ERR(root)) { in btrfs_read_roots()
2329 ret = PTR_ERR(root); in btrfs_read_roots()
2332 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2333 fs_info->extent_root = root; in btrfs_read_roots()
2336 root = btrfs_read_tree_root(tree_root, &location); in btrfs_read_roots()
2337 if (IS_ERR(root)) { in btrfs_read_roots()
2338 ret = PTR_ERR(root); in btrfs_read_roots()
2341 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2342 fs_info->dev_root = root; in btrfs_read_roots()
2346 root = btrfs_read_tree_root(tree_root, &location); in btrfs_read_roots()
2347 if (IS_ERR(root)) { in btrfs_read_roots()
2348 ret = PTR_ERR(root); in btrfs_read_roots()
2351 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2352 fs_info->csum_root = root; in btrfs_read_roots()
2355 root = btrfs_read_tree_root(tree_root, &location); in btrfs_read_roots()
2356 if (!IS_ERR(root)) { in btrfs_read_roots()
2357 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2359 fs_info->quota_root = root; in btrfs_read_roots()
2363 root = btrfs_read_tree_root(tree_root, &location); in btrfs_read_roots()
2364 if (IS_ERR(root)) { in btrfs_read_roots()
2365 ret = PTR_ERR(root); in btrfs_read_roots()
2369 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2370 fs_info->uuid_root = root; in btrfs_read_roots()
2375 root = btrfs_read_tree_root(tree_root, &location); in btrfs_read_roots()
2376 if (IS_ERR(root)) { in btrfs_read_roots()
2377 ret = PTR_ERR(root); in btrfs_read_roots()
2380 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2381 fs_info->free_space_root = root; in btrfs_read_roots()
3849 struct btrfs_root *root) in btrfs_drop_and_free_fs_root() argument
3853 (unsigned long)root->root_key.objectid); in btrfs_drop_and_free_fs_root()
3856 if (btrfs_root_refs(&root->root_item) == 0) in btrfs_drop_and_free_fs_root()
3860 btrfs_free_log(NULL, root); in btrfs_drop_and_free_fs_root()
3861 if (root->reloc_root) { in btrfs_drop_and_free_fs_root()
3862 free_extent_buffer(root->reloc_root->node); in btrfs_drop_and_free_fs_root()
3863 free_extent_buffer(root->reloc_root->commit_root); in btrfs_drop_and_free_fs_root()
3864 btrfs_put_fs_root(root->reloc_root); in btrfs_drop_and_free_fs_root()
3865 root->reloc_root = NULL; in btrfs_drop_and_free_fs_root()
3869 if (root->free_ino_pinned) in btrfs_drop_and_free_fs_root()
3870 __btrfs_remove_free_space_cache(root->free_ino_pinned); in btrfs_drop_and_free_fs_root()
3871 if (root->free_ino_ctl) in btrfs_drop_and_free_fs_root()
3872 __btrfs_remove_free_space_cache(root->free_ino_ctl); in btrfs_drop_and_free_fs_root()
3873 btrfs_free_fs_root(root); in btrfs_drop_and_free_fs_root()
3876 void btrfs_free_fs_root(struct btrfs_root *root) in btrfs_free_fs_root() argument
3878 iput(root->ino_cache_inode); in btrfs_free_fs_root()
3879 WARN_ON(!RB_EMPTY_ROOT(&root->inode_tree)); in btrfs_free_fs_root()
3880 if (root->anon_dev) in btrfs_free_fs_root()
3881 free_anon_bdev(root->anon_dev); in btrfs_free_fs_root()
3882 if (root->subv_writers) in btrfs_free_fs_root()
3883 btrfs_free_subvolume_writers(root->subv_writers); in btrfs_free_fs_root()
3884 free_extent_buffer(root->node); in btrfs_free_fs_root()
3885 free_extent_buffer(root->commit_root); in btrfs_free_fs_root()
3886 kfree(root->free_ino_ctl); in btrfs_free_fs_root()
3887 kfree(root->free_ino_pinned); in btrfs_free_fs_root()
3888 btrfs_put_fs_root(root); in btrfs_free_fs_root()
3944 struct btrfs_root *root = fs_info->tree_root; in btrfs_commit_super() local
3956 trans = btrfs_join_transaction(root); in btrfs_commit_super()
4115 struct btrfs_root *root; in btrfs_mark_buffer_dirty() local
4128 root = BTRFS_I(buf->pages[0]->mapping->host)->root; in btrfs_mark_buffer_dirty()
4129 fs_info = root->fs_info; in btrfs_mark_buffer_dirty()
4189 struct btrfs_root *root = BTRFS_I(buf->pages[0]->mapping->host)->root; in btrfs_read_buffer() local
4190 struct btrfs_fs_info *fs_info = root->fs_info; in btrfs_read_buffer()
4209 static void btrfs_destroy_ordered_extents(struct btrfs_root *root) in btrfs_destroy_ordered_extents() argument
4213 spin_lock(&root->ordered_extent_lock); in btrfs_destroy_ordered_extents()
4218 list_for_each_entry(ordered, &root->ordered_extents, in btrfs_destroy_ordered_extents()
4221 spin_unlock(&root->ordered_extent_lock); in btrfs_destroy_ordered_extents()
4226 struct btrfs_root *root; in btrfs_destroy_all_ordered_extents() local
4234 root = list_first_entry(&splice, struct btrfs_root, in btrfs_destroy_all_ordered_extents()
4236 list_move_tail(&root->ordered_root, in btrfs_destroy_all_ordered_extents()
4240 btrfs_destroy_ordered_extents(root); in btrfs_destroy_all_ordered_extents()
4328 static void btrfs_destroy_delalloc_inodes(struct btrfs_root *root) in btrfs_destroy_delalloc_inodes() argument
4335 spin_lock(&root->delalloc_lock); in btrfs_destroy_delalloc_inodes()
4336 list_splice_init(&root->delalloc_inodes, &splice); in btrfs_destroy_delalloc_inodes()
4342 __btrfs_del_delalloc_inode(root, btrfs_inode); in btrfs_destroy_delalloc_inodes()
4343 spin_unlock(&root->delalloc_lock); in btrfs_destroy_delalloc_inodes()
4358 spin_lock(&root->delalloc_lock); in btrfs_destroy_delalloc_inodes()
4360 spin_unlock(&root->delalloc_lock); in btrfs_destroy_delalloc_inodes()
4365 struct btrfs_root *root; in btrfs_destroy_all_delalloc_inodes() local
4373 root = list_first_entry(&splice, struct btrfs_root, in btrfs_destroy_all_delalloc_inodes()
4375 root = btrfs_grab_fs_root(root); in btrfs_destroy_all_delalloc_inodes()
4376 BUG_ON(!root); in btrfs_destroy_all_delalloc_inodes()
4379 btrfs_destroy_delalloc_inodes(root); in btrfs_destroy_all_delalloc_inodes()
4380 btrfs_put_fs_root(root); in btrfs_destroy_all_delalloc_inodes()