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.
21 #include <uuid/uuid.h>
22 #include "kerncompat.h"
23 #include "radix-tree.h"
27 static int print_dir_item(struct extent_buffer *eb, struct btrfs_item *item,
28 struct btrfs_dir_item *di)
35 char namebuf[BTRFS_NAME_LEN];
36 struct btrfs_disk_key location;
38 total = btrfs_item_size(eb, item);
40 btrfs_dir_item_key(eb, di, &location);
41 printf("\t\tdir index %llu type %u\n",
42 (unsigned long long)btrfs_disk_key_objectid(&location),
43 btrfs_dir_type(eb, di));
44 name_len = btrfs_dir_name_len(eb, di);
45 data_len = btrfs_dir_data_len(eb, di);
46 len = (name_len <= sizeof(namebuf))? name_len: sizeof(namebuf);
47 read_extent_buffer(eb, namebuf, (unsigned long)(di + 1), len);
48 printf("\t\tnamelen %u datalen %u name: %.*s\n",
49 name_len, data_len, len, namebuf);
50 len = sizeof(*di) + name_len + data_len;
51 di = (struct btrfs_dir_item *)((char *)di + len);
57 static int print_inode_ref_item(struct extent_buffer *eb, struct btrfs_item *item,
58 struct btrfs_inode_ref *ref)
65 char namebuf[BTRFS_NAME_LEN];
66 total = btrfs_item_size(eb, item);
68 name_len = btrfs_inode_ref_name_len(eb, ref);
69 index = btrfs_inode_ref_index(eb, ref);
70 len = (name_len <= sizeof(namebuf))? name_len: sizeof(namebuf);
71 read_extent_buffer(eb, namebuf, (unsigned long)(ref + 1), len);
72 printf("\t\tinode ref index %llu namelen %u name: %.*s\n",
73 index, name_len, len, namebuf);
74 len = sizeof(*ref) + name_len;
75 ref = (struct btrfs_inode_ref *)((char *)ref + len);
81 static void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk)
83 int num_stripes = btrfs_chunk_num_stripes(eb, chunk);
85 printf("\t\tchunk length %llu owner %llu type %llu num_stripes %d\n",
86 (unsigned long long)btrfs_chunk_length(eb, chunk),
87 (unsigned long long)btrfs_chunk_owner(eb, chunk),
88 (unsigned long long)btrfs_chunk_type(eb, chunk),
90 for (i = 0 ; i < num_stripes ; i++) {
91 printf("\t\t\tstripe %d devid %llu offset %llu\n", i,
92 (unsigned long long)btrfs_stripe_devid_nr(eb, chunk, i),
93 (unsigned long long)btrfs_stripe_offset_nr(eb, chunk, i));
96 static void print_dev_item(struct extent_buffer *eb,
97 struct btrfs_dev_item *dev_item)
99 printf("\t\tdev item devid %llu "
100 "total_bytes %llu bytes used %Lu\n",
101 (unsigned long long)btrfs_device_id(eb, dev_item),
102 (unsigned long long)btrfs_device_total_bytes(eb, dev_item),
103 (unsigned long long)btrfs_device_bytes_used(eb, dev_item));
106 static void print_uuids(struct extent_buffer *eb)
110 u8 disk_uuid[BTRFS_UUID_SIZE];
112 read_extent_buffer(eb, disk_uuid, (unsigned long)btrfs_header_fsid(eb),
116 uuid_unparse(disk_uuid, fs_uuid);
118 read_extent_buffer(eb, disk_uuid,
119 (unsigned long)btrfs_header_chunk_tree_uuid(eb),
122 chunk_uuid[36] = '\0';
123 uuid_unparse(disk_uuid, chunk_uuid);
124 printf("fs uuid %s\nchunk uuid %s\n", fs_uuid, chunk_uuid);
127 static void print_file_extent_item(struct extent_buffer *eb,
128 struct btrfs_item *item,
129 struct btrfs_file_extent_item *fi)
131 int extent_type = btrfs_file_extent_type(eb, fi);
133 if (extent_type == BTRFS_FILE_EXTENT_INLINE) {
134 printf("\t\tinline extent data size %u "
135 "ram %llu compress %d\n",
136 btrfs_file_extent_inline_len(eb, item),
137 (unsigned long long) btrfs_file_extent_ram_bytes(eb, fi),
138 btrfs_file_extent_compression(eb, fi));
141 if (extent_type == BTRFS_FILE_EXTENT_PREALLOC) {
142 printf("\t\tprealloc data disk byte %llu nr %llu\n",
143 (unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
144 (unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
145 printf("\t\tprealloc data offset %llu nr %llu\n",
146 (unsigned long long)btrfs_file_extent_offset(eb, fi),
147 (unsigned long long)btrfs_file_extent_num_bytes(eb, fi));
150 printf("\t\textent data disk byte %llu nr %llu\n",
151 (unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
152 (unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
153 printf("\t\textent data offset %llu nr %llu ram %llu\n",
154 (unsigned long long)btrfs_file_extent_offset(eb, fi),
155 (unsigned long long)btrfs_file_extent_num_bytes(eb, fi),
156 (unsigned long long)btrfs_file_extent_ram_bytes(eb, fi));
157 printf("\t\textent compression %d\n",
158 btrfs_file_extent_compression(eb, fi));
162 void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
166 struct btrfs_item *item;
167 struct btrfs_extent_item *ei;
168 struct btrfs_root_item *ri;
169 struct btrfs_dir_item *di;
170 struct btrfs_inode_item *ii;
171 struct btrfs_file_extent_item *fi;
172 struct btrfs_csum_item *ci;
173 struct btrfs_block_group_item *bi;
174 struct btrfs_extent_ref *ref;
175 struct btrfs_inode_ref *iref;
176 struct btrfs_dev_extent *dev_extent;
177 struct btrfs_disk_key disk_key;
178 struct btrfs_root_item root_item;
179 struct btrfs_block_group_item bg_item;
180 u32 nr = btrfs_header_nritems(l);
183 printf("leaf %llu ptrs %d free space %d generation %llu owner %llu\n",
184 (unsigned long long)btrfs_header_bytenr(l), nr,
185 btrfs_leaf_free_space(root, l),
186 (unsigned long long)btrfs_header_generation(l),
187 (unsigned long long)btrfs_header_owner(l));
190 for (i = 0 ; i < nr ; i++) {
191 item = btrfs_item_nr(l, i);
192 btrfs_item_key(l, &disk_key, i);
193 type = btrfs_disk_key_type(&disk_key);
194 printf("\titem %d key (%llu %x %llu) itemoff %d itemsize %d\n",
196 (unsigned long long)btrfs_disk_key_objectid(&disk_key),
197 btrfs_disk_key_type(&disk_key),
198 (unsigned long long)btrfs_disk_key_offset(&disk_key),
199 btrfs_item_offset(l, item),
200 btrfs_item_size(l, item));
202 case BTRFS_INODE_ITEM_KEY:
203 ii = btrfs_item_ptr(l, i, struct btrfs_inode_item);
204 printf("\t\tinode generation %llu size %llu block group %llu mode %o links %u\n",
205 (unsigned long long)btrfs_inode_generation(l, ii),
206 (unsigned long long)btrfs_inode_size(l, ii),
207 (unsigned long long)btrfs_inode_block_group(l,ii),
208 btrfs_inode_mode(l, ii),
209 btrfs_inode_nlink(l, ii));
211 case BTRFS_INODE_REF_KEY:
212 iref = btrfs_item_ptr(l, i, struct btrfs_inode_ref);
213 print_inode_ref_item(l, item, iref);
215 case BTRFS_DIR_ITEM_KEY:
216 case BTRFS_DIR_INDEX_KEY:
217 case BTRFS_XATTR_ITEM_KEY:
218 di = btrfs_item_ptr(l, i, struct btrfs_dir_item);
219 print_dir_item(l, item, di);
221 case BTRFS_ORPHAN_ITEM_KEY:
222 printf("\t\torphan item\n");
224 case BTRFS_ROOT_ITEM_KEY:
225 ri = btrfs_item_ptr(l, i, struct btrfs_root_item);
226 read_extent_buffer(l, &root_item, (unsigned long)ri, sizeof(root_item));
227 printf("\t\troot data bytenr %llu level %d dirid %llu refs %u\n",
228 (unsigned long long)btrfs_root_bytenr(&root_item),
229 btrfs_root_level(&root_item),
230 (unsigned long long)btrfs_root_dirid(&root_item),
231 btrfs_root_refs(&root_item));
232 if (1 || btrfs_root_refs(&root_item) == 0) {
233 struct btrfs_key drop_key;
234 btrfs_disk_key_to_cpu(&drop_key,
235 &root_item.drop_progress);
236 printf("\t\tdrop key %Lu %x %Lu level %d\n",
237 (unsigned long long)drop_key.objectid,
239 (unsigned long long)drop_key.offset,
240 root_item.drop_level);
243 case BTRFS_EXTENT_ITEM_KEY:
244 ei = btrfs_item_ptr(l, i, struct btrfs_extent_item);
245 printf("\t\textent data refs %u\n",
246 btrfs_extent_refs(l, ei));
248 case BTRFS_EXTENT_REF_KEY:
249 ref = btrfs_item_ptr(l, i, struct btrfs_extent_ref);
250 printf("\t\textent back ref root %llu gen %llu "
251 "owner %llu num_refs %lu\n",
252 (unsigned long long)btrfs_ref_root(l, ref),
253 (unsigned long long)btrfs_ref_generation(l, ref),
254 (unsigned long long)btrfs_ref_objectid(l, ref),
255 (unsigned long)btrfs_ref_num_refs(l, ref));
257 case BTRFS_CSUM_ITEM_KEY:
258 ci = btrfs_item_ptr(l, i, struct btrfs_csum_item);
259 printf("\t\tcsum item\n");
261 case BTRFS_EXTENT_DATA_KEY:
262 fi = btrfs_item_ptr(l, i,
263 struct btrfs_file_extent_item);
264 print_file_extent_item(l, item, fi);
266 case BTRFS_BLOCK_GROUP_ITEM_KEY:
267 bi = btrfs_item_ptr(l, i,
268 struct btrfs_block_group_item);
269 read_extent_buffer(l, &bg_item, (unsigned long)bi,
271 printf("\t\tblock group used %llu flags %llu\n",
272 (unsigned long long)btrfs_block_group_used(&bg_item),
273 (unsigned long long)btrfs_block_group_flags(&bg_item));
275 case BTRFS_CHUNK_ITEM_KEY:
276 print_chunk(l, btrfs_item_ptr(l, i, struct btrfs_chunk));
278 case BTRFS_DEV_ITEM_KEY:
279 print_dev_item(l, btrfs_item_ptr(l, i,
280 struct btrfs_dev_item));
282 case BTRFS_DEV_EXTENT_KEY:
283 dev_extent = btrfs_item_ptr(l, i,
284 struct btrfs_dev_extent);
285 printf("\t\tdev extent chunk_tree %llu\n"
286 "\t\tchunk objectid %llu chunk offset %llu "
289 btrfs_dev_extent_chunk_tree(l, dev_extent),
291 btrfs_dev_extent_chunk_objectid(l, dev_extent),
293 btrfs_dev_extent_chunk_offset(l, dev_extent),
295 btrfs_dev_extent_length(l, dev_extent));
297 case BTRFS_STRING_ITEM_KEY:
298 /* dirty, but it's simple */
299 str = l->data + btrfs_item_ptr_offset(l, i);
300 printf("\t\titem data %.*s\n", btrfs_item_size(l, item), str);
307 void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *eb)
312 struct btrfs_key key;
316 nr = btrfs_header_nritems(eb);
317 if (btrfs_is_leaf(eb)) {
318 btrfs_print_leaf(root, eb);
321 printf("node %llu level %d ptrs %d free %u generation %llu owner %llu\n",
322 (unsigned long long)eb->start,
323 btrfs_header_level(eb), nr,
324 (u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr,
325 (unsigned long long)btrfs_header_generation(eb),
326 (unsigned long long)btrfs_header_owner(eb));
329 size = btrfs_level_size(root, btrfs_header_level(eb) - 1);
330 for (i = 0; i < nr; i++) {
331 u64 blocknr = btrfs_node_blockptr(eb, i);
332 btrfs_node_key_to_cpu(eb, &key, i);
333 printf("\tkey %d (%llu %x %llu) block %llu (%llu) gen %llu\n",
335 (unsigned long long)key.objectid,
337 (unsigned long long)key.offset,
338 (unsigned long long)blocknr,
339 (unsigned long long)blocknr / size,
340 (unsigned long long)btrfs_node_ptr_generation(eb, i));
343 for (i = 0; i < nr; i++) {
344 struct extent_buffer *next = read_tree_block(root,
345 btrfs_node_blockptr(eb, i),
347 btrfs_node_ptr_generation(eb, i));
348 if (btrfs_is_leaf(next) &&
349 btrfs_header_level(eb) != 1)
351 if (btrfs_header_level(next) !=
352 btrfs_header_level(eb) - 1)
354 btrfs_print_tree(root, next);
355 free_extent_buffer(next);