Lines Matching full:root
47 #include "root-tree.h"
609 struct btrfs_root *root; in btrfs_alloc_root() local
611 root = kzalloc_obj(*root, flags); in btrfs_alloc_root()
612 if (!root) in btrfs_alloc_root()
615 root->fs_info = fs_info; in btrfs_alloc_root()
616 root->root_key.objectid = objectid; in btrfs_alloc_root()
617 RB_CLEAR_NODE(&root->rb_node); in btrfs_alloc_root()
619 xa_init(&root->inodes); in btrfs_alloc_root()
620 xa_init(&root->delayed_nodes); in btrfs_alloc_root()
622 btrfs_init_root_block_rsv(root); in btrfs_alloc_root()
624 INIT_LIST_HEAD(&root->dirty_list); in btrfs_alloc_root()
625 INIT_LIST_HEAD(&root->root_list); in btrfs_alloc_root()
626 INIT_LIST_HEAD(&root->delalloc_inodes); in btrfs_alloc_root()
627 INIT_LIST_HEAD(&root->delalloc_root); in btrfs_alloc_root()
628 INIT_LIST_HEAD(&root->ordered_extents); in btrfs_alloc_root()
629 INIT_LIST_HEAD(&root->ordered_root); in btrfs_alloc_root()
630 INIT_LIST_HEAD(&root->reloc_dirty_list); in btrfs_alloc_root()
631 spin_lock_init(&root->delalloc_lock); in btrfs_alloc_root()
632 spin_lock_init(&root->ordered_extent_lock); in btrfs_alloc_root()
633 spin_lock_init(&root->accounting_lock); in btrfs_alloc_root()
634 spin_lock_init(&root->qgroup_meta_rsv_lock); in btrfs_alloc_root()
635 mutex_init(&root->objectid_mutex); in btrfs_alloc_root()
636 mutex_init(&root->log_mutex); in btrfs_alloc_root()
637 mutex_init(&root->ordered_extent_mutex); in btrfs_alloc_root()
638 mutex_init(&root->delalloc_mutex); in btrfs_alloc_root()
639 init_waitqueue_head(&root->qgroup_flush_wait); in btrfs_alloc_root()
640 init_waitqueue_head(&root->log_writer_wait); in btrfs_alloc_root()
641 init_waitqueue_head(&root->log_commit_wait[0]); in btrfs_alloc_root()
642 init_waitqueue_head(&root->log_commit_wait[1]); in btrfs_alloc_root()
643 INIT_LIST_HEAD(&root->log_ctxs[0]); in btrfs_alloc_root()
644 INIT_LIST_HEAD(&root->log_ctxs[1]); in btrfs_alloc_root()
645 atomic_set(&root->log_commit[0], 0); in btrfs_alloc_root()
646 atomic_set(&root->log_commit[1], 0); in btrfs_alloc_root()
647 atomic_set(&root->log_writers, 0); in btrfs_alloc_root()
648 atomic_set(&root->log_batch, 0); in btrfs_alloc_root()
649 refcount_set(&root->refs, 1); in btrfs_alloc_root()
650 atomic_set(&root->snapshot_force_cow, 0); in btrfs_alloc_root()
651 atomic_set(&root->nr_swapfiles, 0); in btrfs_alloc_root()
652 root->log_transid_committed = -1; in btrfs_alloc_root()
654 btrfs_extent_io_tree_init(fs_info, &root->dirty_log_pages, in btrfs_alloc_root()
656 btrfs_extent_io_tree_init(fs_info, &root->log_csum_range, in btrfs_alloc_root()
660 spin_lock_init(&root->root_item_lock); in btrfs_alloc_root()
661 btrfs_qgroup_init_swapped_blocks(&root->swapped_blocks); in btrfs_alloc_root()
663 INIT_LIST_HEAD(&root->leak_list); in btrfs_alloc_root()
665 list_add_tail(&root->leak_list, &fs_info->allocated_roots); in btrfs_alloc_root()
669 return root; in btrfs_alloc_root()
676 struct btrfs_root *root; in btrfs_alloc_dummy_root() local
681 root = btrfs_alloc_root(fs_info, BTRFS_ROOT_TREE_OBJECTID, GFP_KERNEL); in btrfs_alloc_dummy_root()
682 if (!root) in btrfs_alloc_dummy_root()
686 root->alloc_bytenr = 0; in btrfs_alloc_dummy_root()
688 return root; in btrfs_alloc_dummy_root()
703 const struct btrfs_root *root = rb_entry(node, struct btrfs_root, rb_node); in global_root_key_cmp() local
705 return btrfs_comp_cpu_keys(key, &root->root_key); in global_root_key_cmp()
708 int btrfs_global_root_insert(struct btrfs_root *root) in btrfs_global_root_insert() argument
710 struct btrfs_fs_info *fs_info = root->fs_info; in btrfs_global_root_insert()
715 tmp = rb_find_add(&root->rb_node, &fs_info->global_root_tree, global_root_cmp); in btrfs_global_root_insert()
720 btrfs_warn(fs_info, "global root %llu %llu already exists", in btrfs_global_root_insert()
721 btrfs_root_id(root), root->root_key.offset); in btrfs_global_root_insert()
726 void btrfs_global_root_delete(struct btrfs_root *root) in btrfs_global_root_delete() argument
728 struct btrfs_fs_info *fs_info = root->fs_info; in btrfs_global_root_delete()
731 rb_erase(&root->rb_node, &fs_info->global_root_tree); in btrfs_global_root_delete()
739 struct btrfs_root *root = NULL; in btrfs_global_root() local
744 root = container_of(node, struct btrfs_root, rb_node); in btrfs_global_root()
747 return root; in btrfs_global_root()
799 struct btrfs_root *root; in btrfs_create_tree() local
808 root = btrfs_alloc_root(fs_info, objectid, GFP_KERNEL); in btrfs_create_tree()
810 if (!root) in btrfs_create_tree()
813 root->root_key.objectid = objectid; in btrfs_create_tree()
814 root->root_key.type = BTRFS_ROOT_ITEM_KEY; in btrfs_create_tree()
815 root->root_key.offset = 0; in btrfs_create_tree()
817 leaf = btrfs_alloc_tree_block(trans, root, 0, objectid, NULL, 0, 0, 0, in btrfs_create_tree()
825 root->node = leaf; in btrfs_create_tree()
828 root->commit_root = btrfs_root_node(root); in btrfs_create_tree()
829 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_create_tree()
831 btrfs_set_root_flags(&root->root_item, 0); in btrfs_create_tree()
832 btrfs_set_root_limit(&root->root_item, 0); in btrfs_create_tree()
833 btrfs_set_root_bytenr(&root->root_item, leaf->start); in btrfs_create_tree()
834 btrfs_set_root_generation(&root->root_item, trans->transid); in btrfs_create_tree()
835 btrfs_set_root_level(&root->root_item, 0); in btrfs_create_tree()
836 btrfs_set_root_refs(&root->root_item, 1); in btrfs_create_tree()
837 btrfs_set_root_used(&root->root_item, leaf->len); in btrfs_create_tree()
838 btrfs_set_root_last_snapshot(&root->root_item, 0); in btrfs_create_tree()
839 btrfs_set_root_dirid(&root->root_item, 0); in btrfs_create_tree()
841 generate_random_guid(root->root_item.uuid); in btrfs_create_tree()
843 export_guid(root->root_item.uuid, &guid_null); in btrfs_create_tree()
844 btrfs_set_root_drop_level(&root->root_item, 0); in btrfs_create_tree()
848 ret = btrfs_insert_root(trans, tree_root, &root->root_key, &root->root_item); in btrfs_create_tree()
852 return root; in btrfs_create_tree()
855 btrfs_put_root(root); in btrfs_create_tree()
862 struct btrfs_root *root; in alloc_log_tree() local
864 root = btrfs_alloc_root(fs_info, BTRFS_TREE_LOG_OBJECTID, GFP_NOFS); in alloc_log_tree()
865 if (!root) in alloc_log_tree()
868 root->root_key.objectid = BTRFS_TREE_LOG_OBJECTID; in alloc_log_tree()
869 root->root_key.type = BTRFS_ROOT_ITEM_KEY; in alloc_log_tree()
870 root->root_key.offset = BTRFS_TREE_LOG_OBJECTID; in alloc_log_tree()
872 return root; in alloc_log_tree()
876 struct btrfs_root *root) in btrfs_alloc_log_tree_node() argument
890 leaf = btrfs_alloc_tree_block(trans, root, 0, BTRFS_TREE_LOG_OBJECTID, in btrfs_alloc_log_tree_node()
895 root->node = leaf; in btrfs_alloc_log_tree_node()
897 btrfs_mark_buffer_dirty(trans, root->node); in btrfs_alloc_log_tree_node()
898 btrfs_tree_unlock(root->node); in btrfs_alloc_log_tree_node()
927 struct btrfs_root *root) in btrfs_add_log_tree() argument
929 struct btrfs_fs_info *fs_info = root->fs_info; in btrfs_add_log_tree()
945 log_root->root_key.offset = btrfs_root_id(root); in btrfs_add_log_tree()
957 WARN_ON(root->log_root); in btrfs_add_log_tree()
958 root->log_root = log_root; in btrfs_add_log_tree()
959 btrfs_set_root_log_transid(root, 0); in btrfs_add_log_tree()
960 root->log_transid_committed = -1; in btrfs_add_log_tree()
961 btrfs_set_root_last_log_commit(root, 0); in btrfs_add_log_tree()
969 struct btrfs_root *root; in read_tree_root_path() local
976 root = btrfs_alloc_root(fs_info, key->objectid, GFP_NOFS); in read_tree_root_path()
977 if (!root) in read_tree_root_path()
981 &root->root_item, &root->root_key); in read_tree_root_path()
988 generation = btrfs_root_generation(&root->root_item); in read_tree_root_path()
989 level = btrfs_root_level(&root->root_item); in read_tree_root_path()
993 root->node = read_tree_block(fs_info, btrfs_root_bytenr(&root->root_item), in read_tree_root_path()
995 if (IS_ERR(root->node)) { in read_tree_root_path()
996 ret = PTR_ERR(root->node); in read_tree_root_path()
997 root->node = NULL; in read_tree_root_path()
1001 ret = btrfs_buffer_uptodate(root->node, generation, &check); in read_tree_root_path()
1009 * For real fs, and not log/reloc trees, root owner must in read_tree_root_path()
1010 * match its root node owner in read_tree_root_path()
1013 btrfs_root_id(root) != BTRFS_TREE_LOG_OBJECTID && in read_tree_root_path()
1014 btrfs_root_id(root) != BTRFS_TREE_RELOC_OBJECTID && in read_tree_root_path()
1015 btrfs_root_id(root) != btrfs_header_owner(root->node))) { in read_tree_root_path()
1017 "root=%llu block=%llu, tree root owner mismatch, have %llu expect %llu", in read_tree_root_path()
1018 btrfs_root_id(root), root->node->start, in read_tree_root_path()
1019 btrfs_header_owner(root->node), in read_tree_root_path()
1020 btrfs_root_id(root)); in read_tree_root_path()
1024 root->commit_root = btrfs_root_node(root); in read_tree_root_path()
1025 return root; in read_tree_root_path()
1027 btrfs_put_root(root); in read_tree_root_path()
1034 struct btrfs_root *root; in btrfs_read_tree_root() local
1040 root = read_tree_root_path(tree_root, path, key); in btrfs_read_tree_root()
1042 return root; in btrfs_read_tree_root()
1046 * Initialize subvolume root in-memory structure.
1048 * @anon_dev: anonymous device to attach to the root, if zero, allocate new
1052 static int btrfs_init_fs_root(struct btrfs_root *root, dev_t anon_dev) in btrfs_init_fs_root() argument
1056 btrfs_drew_lock_init(&root->snapshot_lock); in btrfs_init_fs_root()
1058 if (btrfs_root_id(root) != BTRFS_TREE_LOG_OBJECTID && in btrfs_init_fs_root()
1059 !btrfs_is_data_reloc_root(root) && in btrfs_init_fs_root()
1060 btrfs_is_fstree(btrfs_root_id(root))) { in btrfs_init_fs_root()
1061 set_bit(BTRFS_ROOT_SHAREABLE, &root->state); in btrfs_init_fs_root()
1062 btrfs_check_and_init_root_item(&root->root_item); in btrfs_init_fs_root()
1069 if (btrfs_is_fstree(btrfs_root_id(root)) && in btrfs_init_fs_root()
1070 btrfs_root_refs(&root->root_item) > 0) { in btrfs_init_fs_root()
1072 ret = get_anon_bdev(&root->anon_dev); in btrfs_init_fs_root()
1076 root->anon_dev = anon_dev; in btrfs_init_fs_root()
1080 mutex_lock(&root->objectid_mutex); in btrfs_init_fs_root()
1081 ret = btrfs_init_root_free_objectid(root); in btrfs_init_fs_root()
1083 mutex_unlock(&root->objectid_mutex); in btrfs_init_fs_root()
1087 ASSERT(root->free_objectid <= BTRFS_LAST_FREE_OBJECTID); in btrfs_init_fs_root()
1089 mutex_unlock(&root->objectid_mutex); in btrfs_init_fs_root()
1097 struct btrfs_root *root; in btrfs_lookup_fs_root() local
1100 root = radix_tree_lookup(&fs_info->fs_roots_radix, in btrfs_lookup_fs_root()
1102 root = btrfs_grab_root(root); in btrfs_lookup_fs_root()
1104 return root; in btrfs_lookup_fs_root()
1145 struct btrfs_root *root) in btrfs_insert_fs_root() argument
1155 (unsigned long)btrfs_root_id(root), in btrfs_insert_fs_root()
1156 root); in btrfs_insert_fs_root()
1158 btrfs_grab_root(root); in btrfs_insert_fs_root()
1159 set_bit(BTRFS_ROOT_IN_RADIX, &root->state); in btrfs_insert_fs_root()
1170 struct btrfs_root *root; in btrfs_check_leaked_roots() local
1175 root = list_first_entry(&fs_info->allocated_roots, in btrfs_check_leaked_roots()
1177 btrfs_err(fs_info, "leaked root %s refcount %d", in btrfs_check_leaked_roots()
1178 btrfs_root_name(&root->root_key, buf), in btrfs_check_leaked_roots()
1179 refcount_read(&root->refs)); in btrfs_check_leaked_roots()
1181 while (refcount_read(&root->refs) > 1) in btrfs_check_leaked_roots()
1182 btrfs_put_root(root); in btrfs_check_leaked_roots()
1183 btrfs_put_root(root); in btrfs_check_leaked_roots()
1190 struct btrfs_root *root; in free_global_roots() local
1194 root = rb_entry(node, struct btrfs_root, rb_node); in free_global_roots()
1195 rb_erase(&root->rb_node, &fs_info->global_root_tree); in free_global_roots()
1196 btrfs_put_root(root); in free_global_roots()
1238 * Get an in-memory reference of a root structure.
1240 * For essential trees like root/extent tree, we grab it from fs_info directly.
1244 * Caller should release the root by calling btrfs_put_root() after the usage.
1247 * same root objectid.
1249 * @objectid: root id
1252 * @check_ref: whether to check root item references, If true, return -ENOENT
1259 struct btrfs_root *root; in btrfs_get_root_ref() local
1264 root = btrfs_get_global_root(fs_info, objectid); in btrfs_get_root_ref()
1265 if (root) in btrfs_get_root_ref()
1266 return root; in btrfs_get_root_ref()
1278 root = btrfs_lookup_fs_root(fs_info, objectid); in btrfs_get_root_ref()
1279 if (root) { in btrfs_get_root_ref()
1291 if (check_ref && btrfs_root_refs(&root->root_item) == 0) { in btrfs_get_root_ref()
1292 btrfs_put_root(root); in btrfs_get_root_ref()
1295 return root; in btrfs_get_root_ref()
1301 root = btrfs_read_tree_root(fs_info->tree_root, &key); in btrfs_get_root_ref()
1302 if (IS_ERR(root)) in btrfs_get_root_ref()
1303 return root; in btrfs_get_root_ref()
1305 if (check_ref && btrfs_root_refs(&root->root_item) == 0) { in btrfs_get_root_ref()
1310 ret = btrfs_init_fs_root(root, anon_dev ? *anon_dev : 0); in btrfs_get_root_ref()
1328 set_bit(BTRFS_ROOT_ORPHAN_ITEM_INSERTED, &root->state); in btrfs_get_root_ref()
1330 ret = btrfs_insert_fs_root(fs_info, root); in btrfs_get_root_ref()
1333 btrfs_put_root(root); in btrfs_get_root_ref()
1338 return root; in btrfs_get_root_ref()
1343 * root's anon_dev to 0 to avoid a double free, once by btrfs_put_root() in btrfs_get_root_ref()
1347 root->anon_dev = 0; in btrfs_get_root_ref()
1348 btrfs_put_root(root); in btrfs_get_root_ref()
1353 * Get in-memory reference of a root structure
1366 * Get in-memory reference of a root structure, created as new, optionally pass
1380 * Return a root for the given objectid.
1388 * up a fs root that is not in memory. If the root is not in memory we will
1389 * read the tree root commit root and look up the fs root from there. This is a
1390 * temporary root, it will not be inserted into the radix tree as it doesn't
1392 * backref code is finished using the root.
1398 struct btrfs_root *root; in btrfs_get_fs_root_commit_root() local
1404 * This can return -ENOENT if we ask for a root that doesn't exist, but in btrfs_get_fs_root_commit_root()
1406 * up a root that doesn't exist, unless there's corruption. So if root in btrfs_get_fs_root_commit_root()
1409 root = btrfs_get_global_root(fs_info, objectid); in btrfs_get_fs_root_commit_root()
1410 if (root) in btrfs_get_fs_root_commit_root()
1411 return root; in btrfs_get_fs_root_commit_root()
1413 root = btrfs_lookup_fs_root(fs_info, objectid); in btrfs_get_fs_root_commit_root()
1414 if (root) in btrfs_get_fs_root_commit_root()
1415 return root; in btrfs_get_fs_root_commit_root()
1420 root = read_tree_root_path(fs_info->tree_root, path, &key); in btrfs_get_fs_root_commit_root()
1423 return root; in btrfs_get_fs_root_commit_root()
1509 struct btrfs_root *root = arg; in transaction_kthread() local
1510 struct btrfs_fs_info *fs_info = root->fs_info; in transaction_kthread()
1544 trans = btrfs_attach_transaction(root); in transaction_kthread()
1570 * This will find the highest generation in the array of root backups. The
1575 * generation of the latest root in the array with the generation
1596 * copy all the root pointers into the super backup array.
1633 btrfs_err(info, "missing extent root for extent at bytenr 0"); in backup_super_roots()
1637 btrfs_err(info, "missing csum root for extent at bytenr 0"); in backup_super_roots()
1693 * Reads a backup root based on the passed priority. Prio 0 is the newest, prio
1697 * @priority: priority of backup root required
1699 * Returns backup root index on success and -EINVAL otherwise.
1763 static void free_root_extent_buffers(struct btrfs_root *root) in free_root_extent_buffers() argument
1765 if (root) { in free_root_extent_buffers()
1766 free_extent_buffer(root->node); in free_root_extent_buffers()
1767 free_extent_buffer(root->commit_root); in free_root_extent_buffers()
1768 root->node = NULL; in free_root_extent_buffers()
1769 root->commit_root = NULL; in free_root_extent_buffers()
1775 struct btrfs_root *root, *tmp; in free_global_root_pointers() local
1777 rbtree_postorder_for_each_entry_safe(root, tmp, in free_global_root_pointers()
1780 free_root_extent_buffers(root); in free_global_root_pointers()
1801 void btrfs_put_root(struct btrfs_root *root) in btrfs_put_root() argument
1803 if (!root) in btrfs_put_root()
1806 if (refcount_dec_and_test(&root->refs)) { in btrfs_put_root()
1807 if (WARN_ON(!xa_empty(&root->inodes))) in btrfs_put_root()
1808 xa_destroy(&root->inodes); in btrfs_put_root()
1809 if (WARN_ON(!xa_empty(&root->delayed_nodes))) in btrfs_put_root()
1810 xa_destroy(&root->delayed_nodes); in btrfs_put_root()
1811 WARN_ON(test_bit(BTRFS_ROOT_DEAD_RELOC_TREE, &root->state)); in btrfs_put_root()
1812 if (root->anon_dev) in btrfs_put_root()
1813 free_anon_bdev(root->anon_dev); in btrfs_put_root()
1814 free_root_extent_buffers(root); in btrfs_put_root()
1816 spin_lock(&root->fs_info->fs_roots_radix_lock); in btrfs_put_root()
1817 list_del_init(&root->leak_list); in btrfs_put_root()
1818 spin_unlock(&root->fs_info->fs_roots_radix_lock); in btrfs_put_root()
1820 kfree(root); in btrfs_put_root()
1899 BTRFS_I(inode)->root = btrfs_grab_root(fs_info->tree_root); in btrfs_init_btree_inode()
2058 struct btrfs_root *root; in load_global_roots_objectid() local
2103 root = read_tree_root_path(tree_root, path, &key); in load_global_roots_objectid()
2104 if (IS_ERR(root)) { in load_global_roots_objectid()
2105 ret = PTR_ERR(root); in load_global_roots_objectid()
2108 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in load_global_roots_objectid()
2109 ret = btrfs_global_root_insert(root); in load_global_roots_objectid()
2111 btrfs_put_root(root); in load_global_roots_objectid()
2129 btrfs_err(fs_info, "failed to load root %s", name); in load_global_roots_objectid()
2162 struct btrfs_root *root; in btrfs_read_roots() local
2177 root = btrfs_read_tree_root(tree_root, &location); in btrfs_read_roots()
2178 if (IS_ERR(root)) { in btrfs_read_roots()
2180 ret = PTR_ERR(root); in btrfs_read_roots()
2184 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2185 fs_info->block_group_root = root; in btrfs_read_roots()
2190 root = btrfs_read_tree_root(tree_root, &location); in btrfs_read_roots()
2191 if (IS_ERR(root)) { in btrfs_read_roots()
2193 ret = PTR_ERR(root); in btrfs_read_roots()
2197 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2198 fs_info->dev_root = root; in btrfs_read_roots()
2207 root = fs_info->remap_root; in btrfs_read_roots()
2209 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2211 root->root_key.objectid = BTRFS_REMAP_TREE_OBJECTID; in btrfs_read_roots()
2212 root->root_key.type = BTRFS_ROOT_ITEM_KEY; in btrfs_read_roots()
2213 root->root_key.offset = 0; in btrfs_read_roots()
2217 root = btrfs_read_tree_root(fs_info->tree_root, &location); in btrfs_read_roots()
2218 if (!IS_ERR(root)) { in btrfs_read_roots()
2220 btrfs_put_root(root); in btrfs_read_roots()
2222 } else if (PTR_ERR(root) != -ENOENT) { in btrfs_read_roots()
2224 PTR_ERR(root)); in btrfs_read_roots()
2231 root = btrfs_get_fs_root(tree_root->fs_info, in btrfs_read_roots()
2233 if (IS_ERR(root)) { in btrfs_read_roots()
2236 ret = PTR_ERR(root); in btrfs_read_roots()
2240 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2241 fs_info->data_reloc_root = root; in btrfs_read_roots()
2246 root = btrfs_read_tree_root(tree_root, &location); in btrfs_read_roots()
2247 if (!IS_ERR(root)) { in btrfs_read_roots()
2248 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2249 fs_info->quota_root = root; in btrfs_read_roots()
2253 root = btrfs_read_tree_root(tree_root, &location); in btrfs_read_roots()
2254 if (IS_ERR(root)) { in btrfs_read_roots()
2256 ret = PTR_ERR(root); in btrfs_read_roots()
2261 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2262 fs_info->uuid_root = root; in btrfs_read_roots()
2267 root = btrfs_read_tree_root(tree_root, &location); in btrfs_read_roots()
2268 if (IS_ERR(root)) { in btrfs_read_roots()
2270 ret = PTR_ERR(root); in btrfs_read_roots()
2274 set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); in btrfs_read_roots()
2275 fs_info->stripe_root = root; in btrfs_read_roots()
2281 btrfs_warn(fs_info, "failed to read root (objectid=%llu): %d", in btrfs_read_roots()
2438 /* Root alignment check */ in btrfs_validate_super()
2618 static int load_super_root(struct btrfs_root *root, u64 bytenr, u64 gen, int level) in load_super_root() argument
2623 .owner_root = btrfs_root_id(root) in load_super_root()
2627 root->node = read_tree_block(root->fs_info, bytenr, &check); in load_super_root()
2628 if (IS_ERR(root->node)) { in load_super_root()
2629 ret = PTR_ERR(root->node); in load_super_root()
2630 root->node = NULL; in load_super_root()
2634 btrfs_set_root_node(&root->root_item, root->node); in load_super_root()
2635 root->commit_root = btrfs_root_node(root); in load_super_root()
2636 btrfs_set_root_refs(&root->root_item, 1); in load_super_root()
2651 btrfs_warn(fs_info, "couldn't read tree root"); in load_important_roots()
2661 btrfs_warn(fs_info, "couldn't read remap root"); in load_important_roots()
3089 * calling btrfs_orphan_cleanup() on the tree root. If we don't do it in btrfs_start_pre_rw_mount()
3090 * first, then btrfs_orphan_cleanup() will delete a dead root's orphan in btrfs_start_pre_rw_mount()
3091 * item before the root's tree is deleted - this means that if we unmount in btrfs_start_pre_rw_mount()
3376 btrfs_err(fs_info, "invalid superblock tree root bytenr"); in open_ctree()
3469 btrfs_err(fs_info, "failed to read chunk root"); in open_ctree()
3514 * If we have a uuid root and we're not being told to rescan we need to in open_ctree()
4138 /* Drop a fs root from the radix tree and free it. */
4140 struct btrfs_root *root) in btrfs_drop_and_free_fs_root() argument
4146 (unsigned long)btrfs_root_id(root)); in btrfs_drop_and_free_fs_root()
4147 if (test_and_clear_bit(BTRFS_ROOT_IN_RADIX, &root->state)) in btrfs_drop_and_free_fs_root()
4152 ASSERT(root->log_root == NULL); in btrfs_drop_and_free_fs_root()
4153 if (root->reloc_root) { in btrfs_drop_and_free_fs_root()
4154 btrfs_put_root(root->reloc_root); in btrfs_drop_and_free_fs_root()
4155 root->reloc_root = NULL; in btrfs_drop_and_free_fs_root()
4160 btrfs_put_root(root); in btrfs_drop_and_free_fs_root()
4564 static void btrfs_destroy_ordered_extents(struct btrfs_root *root) in btrfs_destroy_ordered_extents() argument
4568 spin_lock(&root->ordered_extent_lock); in btrfs_destroy_ordered_extents()
4573 list_for_each_entry(ordered, &root->ordered_extents, in btrfs_destroy_ordered_extents()
4576 spin_unlock(&root->ordered_extent_lock); in btrfs_destroy_ordered_extents()
4581 struct btrfs_root *root; in btrfs_destroy_all_ordered_extents() local
4587 root = list_first_entry(&splice, struct btrfs_root, in btrfs_destroy_all_ordered_extents()
4589 list_move_tail(&root->ordered_root, in btrfs_destroy_all_ordered_extents()
4593 btrfs_destroy_ordered_extents(root); in btrfs_destroy_all_ordered_extents()
4609 static void btrfs_destroy_delalloc_inodes(struct btrfs_root *root) in btrfs_destroy_delalloc_inodes() argument
4614 spin_lock(&root->delalloc_lock); in btrfs_destroy_delalloc_inodes()
4615 list_splice_init(&root->delalloc_inodes, &splice); in btrfs_destroy_delalloc_inodes()
4622 spin_unlock(&root->delalloc_lock); in btrfs_destroy_delalloc_inodes()
4637 spin_lock(&root->delalloc_lock); in btrfs_destroy_delalloc_inodes()
4639 spin_unlock(&root->delalloc_lock); in btrfs_destroy_delalloc_inodes()
4644 struct btrfs_root *root; in btrfs_destroy_all_delalloc_inodes() local
4650 root = list_first_entry(&splice, struct btrfs_root, in btrfs_destroy_all_delalloc_inodes()
4652 root = btrfs_grab_root(root); in btrfs_destroy_all_delalloc_inodes()
4653 BUG_ON(!root); in btrfs_destroy_all_delalloc_inodes()
4656 btrfs_destroy_delalloc_inodes(root); in btrfs_destroy_all_delalloc_inodes()
4657 btrfs_put_root(root); in btrfs_destroy_all_delalloc_inodes()
4803 struct btrfs_root *root = gang[i]; in btrfs_free_all_qgroup_pertrans() local
4805 btrfs_qgroup_free_meta_all_pertrans(root); in btrfs_free_all_qgroup_pertrans()
4807 (unsigned long)btrfs_root_id(root), in btrfs_free_all_qgroup_pertrans()
4898 int btrfs_init_root_free_objectid(struct btrfs_root *root) in btrfs_init_root_free_objectid() argument
4914 ret = btrfs_search_slot(NULL, root, &search_key, path, 0, 0); in btrfs_init_root_free_objectid()
4919 * Key with offset -1 found, there would have to exist a root in btrfs_init_root_free_objectid()
4928 root->free_objectid = max_t(u64, found_key.objectid + 1, in btrfs_init_root_free_objectid()
4931 root->free_objectid = BTRFS_FIRST_FREE_OBJECTID; in btrfs_init_root_free_objectid()
4937 int btrfs_get_free_objectid(struct btrfs_root *root, u64 *objectid) in btrfs_get_free_objectid() argument
4940 mutex_lock(&root->objectid_mutex); in btrfs_get_free_objectid()
4942 if (unlikely(root->free_objectid >= BTRFS_LAST_FREE_OBJECTID)) { in btrfs_get_free_objectid()
4943 btrfs_warn(root->fs_info, in btrfs_get_free_objectid()
4944 "the objectid of root %llu reaches its highest value", in btrfs_get_free_objectid()
4945 btrfs_root_id(root)); in btrfs_get_free_objectid()
4950 *objectid = root->free_objectid++; in btrfs_get_free_objectid()
4953 mutex_unlock(&root->objectid_mutex); in btrfs_get_free_objectid()