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 void btrfs_print_leaf(struct btrfs_root
*root
, struct extent_buffer
*l
)
131 struct btrfs_item
*item
;
132 struct btrfs_extent_item
*ei
;
133 struct btrfs_root_item
*ri
;
134 struct btrfs_dir_item
*di
;
135 struct btrfs_inode_item
*ii
;
136 struct btrfs_file_extent_item
*fi
;
137 struct btrfs_csum_item
*ci
;
138 struct btrfs_block_group_item
*bi
;
139 struct btrfs_extent_ref
*ref
;
140 struct btrfs_inode_ref
*iref
;
141 struct btrfs_dev_extent
*dev_extent
;
142 struct btrfs_disk_key disk_key
;
143 struct btrfs_root_item root_item
;
144 struct btrfs_block_group_item bg_item
;
145 u32 nr
= btrfs_header_nritems(l
);
148 printf("leaf %llu ptrs %d free space %d generation %llu owner %llu\n",
149 (unsigned long long)btrfs_header_bytenr(l
), nr
,
150 btrfs_leaf_free_space(root
, l
),
151 (unsigned long long)btrfs_header_generation(l
),
152 (unsigned long long)btrfs_header_owner(l
));
155 for (i
= 0 ; i
< nr
; i
++) {
156 item
= btrfs_item_nr(l
, i
);
157 btrfs_item_key(l
, &disk_key
, i
);
158 type
= btrfs_disk_key_type(&disk_key
);
159 printf("\titem %d key (%llu %x %llu) itemoff %d itemsize %d\n",
161 (unsigned long long)btrfs_disk_key_objectid(&disk_key
),
162 btrfs_disk_key_type(&disk_key
),
163 (unsigned long long)btrfs_disk_key_offset(&disk_key
),
164 btrfs_item_offset(l
, item
),
165 btrfs_item_size(l
, item
));
167 case BTRFS_INODE_ITEM_KEY
:
168 ii
= btrfs_item_ptr(l
, i
, struct btrfs_inode_item
);
169 printf("\t\tinode generation %llu size %llu block group %llu mode %o links %u\n",
170 (unsigned long long)btrfs_inode_generation(l
, ii
),
171 (unsigned long long)btrfs_inode_size(l
, ii
),
172 (unsigned long long)btrfs_inode_block_group(l
,ii
),
173 btrfs_inode_mode(l
, ii
),
174 btrfs_inode_nlink(l
, ii
));
176 case BTRFS_INODE_REF_KEY
:
177 iref
= btrfs_item_ptr(l
, i
, struct btrfs_inode_ref
);
178 print_inode_ref_item(l
, item
, iref
);
180 case BTRFS_DIR_ITEM_KEY
:
181 case BTRFS_DIR_INDEX_KEY
:
182 case BTRFS_XATTR_ITEM_KEY
:
183 di
= btrfs_item_ptr(l
, i
, struct btrfs_dir_item
);
184 print_dir_item(l
, item
, di
);
186 case BTRFS_ORPHAN_ITEM_KEY
:
187 printf("\t\torphan item\n");
189 case BTRFS_ROOT_ITEM_KEY
:
190 ri
= btrfs_item_ptr(l
, i
, struct btrfs_root_item
);
191 read_extent_buffer(l
, &root_item
, (unsigned long)ri
, sizeof(root_item
));
192 printf("\t\troot data bytenr %llu level %d dirid %llu refs %u\n",
193 (unsigned long long)btrfs_root_bytenr(&root_item
),
194 btrfs_root_level(&root_item
),
195 (unsigned long long)btrfs_root_dirid(&root_item
),
196 btrfs_root_refs(&root_item
));
197 if (1 || btrfs_root_refs(&root_item
) == 0) {
198 struct btrfs_key drop_key
;
199 btrfs_disk_key_to_cpu(&drop_key
,
200 &root_item
.drop_progress
);
201 printf("\t\tdrop key %Lu %x %Lu level %d\n",
202 (unsigned long long)drop_key
.objectid
,
204 (unsigned long long)drop_key
.offset
,
205 root_item
.drop_level
);
208 case BTRFS_EXTENT_ITEM_KEY
:
209 ei
= btrfs_item_ptr(l
, i
, struct btrfs_extent_item
);
210 printf("\t\textent data refs %u\n",
211 btrfs_extent_refs(l
, ei
));
213 case BTRFS_EXTENT_REF_KEY
:
214 ref
= btrfs_item_ptr(l
, i
, struct btrfs_extent_ref
);
215 printf("\t\textent back ref root %llu gen %llu "
216 "owner %llu offset %llu\n",
217 (unsigned long long)btrfs_ref_root(l
, ref
),
218 (unsigned long long)btrfs_ref_generation(l
, ref
),
219 (unsigned long long)btrfs_ref_objectid(l
, ref
),
220 (unsigned long long)btrfs_ref_offset(l
, ref
));
222 case BTRFS_CSUM_ITEM_KEY
:
223 ci
= btrfs_item_ptr(l
, i
, struct btrfs_csum_item
);
224 printf("\t\tcsum item\n");
226 case BTRFS_EXTENT_DATA_KEY
:
227 fi
= btrfs_item_ptr(l
, i
,
228 struct btrfs_file_extent_item
);
229 if (btrfs_file_extent_type(l
, fi
) ==
230 BTRFS_FILE_EXTENT_INLINE
) {
231 printf("\t\tinline extent data size %u\n",
232 btrfs_file_extent_inline_len(l
, item
));
235 printf("\t\textent data disk byte %llu nr %llu\n",
236 (unsigned long long)btrfs_file_extent_disk_bytenr(l
, fi
),
237 (unsigned long long)btrfs_file_extent_disk_num_bytes(l
, fi
));
238 printf("\t\textent data offset %llu nr %llu\n",
239 (unsigned long long)btrfs_file_extent_offset(l
, fi
),
240 (unsigned long long)btrfs_file_extent_num_bytes(l
, fi
));
242 case BTRFS_BLOCK_GROUP_ITEM_KEY
:
243 bi
= btrfs_item_ptr(l
, i
,
244 struct btrfs_block_group_item
);
245 read_extent_buffer(l
, &bg_item
, (unsigned long)bi
,
247 printf("\t\tblock group used %llu flags %llu\n",
248 (unsigned long long)btrfs_block_group_used(&bg_item
),
249 (unsigned long long)btrfs_block_group_flags(&bg_item
));
251 case BTRFS_CHUNK_ITEM_KEY
:
252 print_chunk(l
, btrfs_item_ptr(l
, i
, struct btrfs_chunk
));
254 case BTRFS_DEV_ITEM_KEY
:
255 print_dev_item(l
, btrfs_item_ptr(l
, i
,
256 struct btrfs_dev_item
));
258 case BTRFS_DEV_EXTENT_KEY
:
259 dev_extent
= btrfs_item_ptr(l
, i
,
260 struct btrfs_dev_extent
);
261 printf("\t\tdev extent chunk_tree %llu\n"
262 "\t\tchunk objectid %llu chunk offset %llu "
265 btrfs_dev_extent_chunk_tree(l
, dev_extent
),
267 btrfs_dev_extent_chunk_objectid(l
, dev_extent
),
269 btrfs_dev_extent_chunk_offset(l
, dev_extent
),
271 btrfs_dev_extent_length(l
, dev_extent
));
273 case BTRFS_STRING_ITEM_KEY
:
274 /* dirty, but it's simple */
275 str
= l
->data
+ btrfs_item_ptr_offset(l
, i
);
276 printf("\t\titem data %.*s\n", btrfs_item_size(l
, item
), str
);
283 void btrfs_print_tree(struct btrfs_root
*root
, struct extent_buffer
*eb
)
288 struct btrfs_key key
;
292 nr
= btrfs_header_nritems(eb
);
293 if (btrfs_is_leaf(eb
)) {
294 btrfs_print_leaf(root
, eb
);
297 printf("node %llu level %d ptrs %d free %u generation %llu owner %llu\n",
298 (unsigned long long)eb
->start
,
299 btrfs_header_level(eb
), nr
,
300 (u32
)BTRFS_NODEPTRS_PER_BLOCK(root
) - nr
,
301 (unsigned long long)btrfs_header_generation(eb
),
302 (unsigned long long)btrfs_header_owner(eb
));
305 size
= btrfs_level_size(root
, btrfs_header_level(eb
) - 1);
306 for (i
= 0; i
< nr
; i
++) {
307 u64 blocknr
= btrfs_node_blockptr(eb
, i
);
308 btrfs_node_key_to_cpu(eb
, &key
, i
);
309 printf("\tkey %d (%llu %x %llu) block %llu (%llu) gen %llu\n",
311 (unsigned long long)key
.objectid
,
313 (unsigned long long)key
.offset
,
314 (unsigned long long)blocknr
,
315 (unsigned long long)blocknr
/ size
,
316 (unsigned long long)btrfs_node_ptr_generation(eb
, i
));
319 for (i
= 0; i
< nr
; i
++) {
320 struct extent_buffer
*next
= read_tree_block(root
,
321 btrfs_node_blockptr(eb
, i
),
323 btrfs_node_ptr_generation(eb
, i
));
324 if (btrfs_is_leaf(next
) &&
325 btrfs_header_level(eb
) != 1)
327 if (btrfs_header_level(next
) !=
328 btrfs_header_level(eb
) - 1)
330 btrfs_print_tree(root
, next
);
331 free_extent_buffer(next
);