2 * Copyright (C) 2007 Oracle. All rights reserved.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public
6 * License v2 as published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public
14 * License along with this program; if not, write to the
15 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
16 * Boston, MA 021110-1307, USA.
22 #include <uuid/uuid.h>
23 #include "kerncompat.h"
24 #include "radix-tree.h"
27 #include "print-tree.h"
28 #include "transaction.h"
31 static int print_usage(void)
33 fprintf(stderr, "usage: debug-tree [ -e ] device\n");
34 fprintf(stderr, "%s\n", BTRFS_BUILD_VERSION);
38 static void print_extents(struct btrfs_root *root, struct extent_buffer *eb)
47 size = btrfs_level_size(root, btrfs_header_level(eb) - 1);
48 nr = btrfs_header_nritems(eb);
49 for (i = 0; i < nr; i++) {
50 struct extent_buffer *next = read_tree_block(root,
51 btrfs_node_blockptr(eb, i),
53 btrfs_node_ptr_generation(eb, i));
54 if (btrfs_is_leaf(next) &&
55 btrfs_header_level(eb) != 1)
57 if (btrfs_header_level(next) !=
58 btrfs_header_level(eb) - 1)
60 print_extents(root, next);
61 free_extent_buffer(next);
65 int main(int ac, char **av)
67 struct btrfs_root *root;
68 struct btrfs_path path;
70 struct btrfs_root_item ri;
71 struct extent_buffer *leaf;
72 struct btrfs_disk_key disk_key;
73 struct btrfs_key found_key;
80 struct btrfs_root *tree_root_scan;
86 c = getopt(ac, av, "deb:");
97 block_only = atoll(optarg);
107 root = open_ctree(av[optind], 0, 0);
109 fprintf(stderr, "unable to open %s\n", av[optind]);
113 leaf = read_tree_block(root,
117 if (leaf && btrfs_header_level(leaf) != 0) {
118 free_extent_buffer(leaf);
123 leaf = read_tree_block(root,
128 fprintf(stderr, "failed to read %llu\n",
129 (unsigned long long)block_only);
132 btrfs_print_tree(root, leaf, 0);
137 printf("root tree\n");
138 btrfs_print_tree(root->fs_info->tree_root,
139 root->fs_info->tree_root->node, 1);
141 printf("chunk tree\n");
142 btrfs_print_tree(root->fs_info->chunk_root,
143 root->fs_info->chunk_root->node, 1);
145 tree_root_scan = root->fs_info->tree_root;
147 btrfs_init_path(&path);
151 btrfs_set_key_type(&key, BTRFS_ROOT_ITEM_KEY);
152 ret = btrfs_search_slot(NULL, tree_root_scan, &key, &path, 0, 0);
155 leaf = path.nodes[0];
156 slot = path.slots[0];
157 if (slot >= btrfs_header_nritems(leaf)) {
158 ret = btrfs_next_leaf(tree_root_scan, &path);
161 leaf = path.nodes[0];
162 slot = path.slots[0];
164 btrfs_item_key(leaf, &disk_key, path.slots[0]);
165 btrfs_disk_key_to_cpu(&found_key, &disk_key);
166 if (btrfs_key_type(&found_key) == BTRFS_ROOT_ITEM_KEY) {
167 unsigned long offset;
168 struct extent_buffer *buf;
169 int skip = extent_only | device_only;
171 offset = btrfs_item_ptr_offset(leaf, slot);
172 read_extent_buffer(leaf, &ri, offset, sizeof(ri));
173 buf = read_tree_block(tree_root_scan,
174 btrfs_root_bytenr(&ri),
175 btrfs_level_size(tree_root_scan,
176 btrfs_root_level(&ri)),
178 switch(found_key.objectid) {
179 case BTRFS_ROOT_TREE_OBJECTID:
183 case BTRFS_EXTENT_TREE_OBJECTID:
186 if (!extent_only && !device_only)
189 case BTRFS_CHUNK_TREE_OBJECTID:
194 case BTRFS_DEV_TREE_OBJECTID:
198 case BTRFS_FS_TREE_OBJECTID:
203 case BTRFS_ROOT_TREE_DIR_OBJECTID:
207 case BTRFS_CSUM_TREE_OBJECTID:
212 case BTRFS_ORPHAN_OBJECTID:
217 case BTRFS_TREE_LOG_OBJECTID:
222 case BTRFS_TREE_LOG_FIXUP_OBJECTID:
227 case BTRFS_TREE_RELOC_OBJECTID:
232 case BTRFS_DATA_RELOC_TREE_OBJECTID:
234 printf("data reloc");
237 case BTRFS_EXTENT_CSUM_OBJECTID:
239 printf("extent checksum");
241 case BTRFS_MULTIPLE_OBJECTIDS:
251 if (extent_only && !skip) {
252 print_extents(tree_root_scan, buf);
255 btrfs_print_key(&disk_key);
257 btrfs_print_tree(tree_root_scan, buf, 1);
262 btrfs_release_path(root, &path);
264 if (tree_root_scan == root->fs_info->tree_root &&
265 root->fs_info->log_root_tree) {
266 tree_root_scan = root->fs_info->log_root_tree;
270 if (extent_only || device_only)
273 printf("total bytes %llu\n",
274 (unsigned long long)btrfs_super_total_bytes(&root->fs_info->super_copy));
275 printf("bytes used %llu\n",
276 (unsigned long long)btrfs_super_bytes_used(&root->fs_info->super_copy));
278 uuid_unparse(root->fs_info->super_copy.fsid, uuidbuf);
279 printf("uuid %s\n", uuidbuf);
280 printf("%s\n", BTRFS_BUILD_VERSION);