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"
26 #include "print-tree.h"
30 static void print_dir_item_type(struct extent_buffer
*eb
,
31 struct btrfs_dir_item
*di
)
33 u8 type
= btrfs_dir_type(eb
, di
);
36 case BTRFS_FT_REG_FILE
:
54 case BTRFS_FT_SYMLINK
:
65 static int print_dir_item(struct extent_buffer
*eb
, struct btrfs_item
*item
,
66 struct btrfs_dir_item
*di
)
73 char namebuf
[BTRFS_NAME_LEN
];
74 struct btrfs_disk_key location
;
76 total
= btrfs_item_size(eb
, item
);
78 btrfs_dir_item_key(eb
, di
, &location
);
79 printf("\t\tlocation ");
80 btrfs_print_key(&location
);
82 print_dir_item_type(eb
, di
);
84 name_len
= btrfs_dir_name_len(eb
, di
);
85 data_len
= btrfs_dir_data_len(eb
, di
);
86 len
= (name_len
<= sizeof(namebuf
))? name_len
: sizeof(namebuf
);
87 read_extent_buffer(eb
, namebuf
, (unsigned long)(di
+ 1), len
);
88 printf("\t\tnamelen %u datalen %u name: %.*s\n",
89 name_len
, data_len
, len
, namebuf
);
91 len
= (data_len
<= sizeof(namebuf
))? data_len
: sizeof(namebuf
);
92 read_extent_buffer(eb
, namebuf
,
93 (unsigned long)(di
+ 1) + name_len
, len
);
94 printf("\t\tdata %.*s\n", len
, namebuf
);
96 len
= sizeof(*di
) + name_len
+ data_len
;
97 di
= (struct btrfs_dir_item
*)((char *)di
+ len
);
103 static int print_inode_extref_item(struct extent_buffer
*eb
,
104 struct btrfs_item
*item
,
105 struct btrfs_inode_extref
*extref
)
113 char namebuf
[BTRFS_NAME_LEN
];
115 total
= btrfs_item_size(eb
, item
);
117 while (cur
< total
) {
118 index
= btrfs_inode_extref_index(eb
, extref
);
119 name_len
= btrfs_inode_extref_name_len(eb
, extref
);
120 parent_objid
= btrfs_inode_extref_parent(eb
, extref
);
122 len
= (name_len
<= sizeof(namebuf
))? name_len
: sizeof(namebuf
);
124 read_extent_buffer(eb
, namebuf
, (unsigned long)(extref
->name
), len
);
126 printf("\t\tinode extref index %llu parent %llu namelen %u "
128 (unsigned long long)index
,
129 (unsigned long long)parent_objid
,
130 name_len
, len
, namebuf
);
132 len
= sizeof(*extref
) + name_len
;
133 extref
= (struct btrfs_inode_extref
*)((char *)extref
+ len
);
139 static int print_inode_ref_item(struct extent_buffer
*eb
, struct btrfs_item
*item
,
140 struct btrfs_inode_ref
*ref
)
147 char namebuf
[BTRFS_NAME_LEN
];
148 total
= btrfs_item_size(eb
, item
);
150 name_len
= btrfs_inode_ref_name_len(eb
, ref
);
151 index
= btrfs_inode_ref_index(eb
, ref
);
152 len
= (name_len
<= sizeof(namebuf
))? name_len
: sizeof(namebuf
);
153 read_extent_buffer(eb
, namebuf
, (unsigned long)(ref
+ 1), len
);
154 printf("\t\tinode ref index %llu namelen %u name: %.*s\n",
155 (unsigned long long)index
, name_len
, len
, namebuf
);
156 len
= sizeof(*ref
) + name_len
;
157 ref
= (struct btrfs_inode_ref
*)((char *)ref
+ len
);
163 void print_chunk(struct extent_buffer
*eb
, struct btrfs_chunk
*chunk
)
165 int num_stripes
= btrfs_chunk_num_stripes(eb
, chunk
);
167 printf("\t\tchunk length %llu owner %llu type %llu num_stripes %d\n",
168 (unsigned long long)btrfs_chunk_length(eb
, chunk
),
169 (unsigned long long)btrfs_chunk_owner(eb
, chunk
),
170 (unsigned long long)btrfs_chunk_type(eb
, chunk
),
172 for (i
= 0 ; i
< num_stripes
; i
++) {
173 printf("\t\t\tstripe %d devid %llu offset %llu\n", i
,
174 (unsigned long long)btrfs_stripe_devid_nr(eb
, chunk
, i
),
175 (unsigned long long)btrfs_stripe_offset_nr(eb
, chunk
, i
));
179 static void print_dev_item(struct extent_buffer
*eb
,
180 struct btrfs_dev_item
*dev_item
)
182 char disk_uuid_c
[BTRFS_UUID_UNPARSED_SIZE
];
183 u8 disk_uuid
[BTRFS_UUID_SIZE
];
185 read_extent_buffer(eb
, disk_uuid
,
186 (unsigned long)btrfs_device_uuid(dev_item
),
188 uuid_unparse(disk_uuid
, disk_uuid_c
);
189 printf("\t\tdev item devid %llu "
190 "total_bytes %llu bytes used %Lu\n"
192 (unsigned long long)btrfs_device_id(eb
, dev_item
),
193 (unsigned long long)btrfs_device_total_bytes(eb
, dev_item
),
194 (unsigned long long)btrfs_device_bytes_used(eb
, dev_item
),
198 static void print_uuids(struct extent_buffer
*eb
)
200 char fs_uuid
[BTRFS_UUID_UNPARSED_SIZE
];
201 char chunk_uuid
[BTRFS_UUID_UNPARSED_SIZE
];
202 u8 disk_uuid
[BTRFS_UUID_SIZE
];
204 read_extent_buffer(eb
, disk_uuid
, btrfs_header_fsid(),
207 fs_uuid
[BTRFS_UUID_UNPARSED_SIZE
- 1] = '\0';
208 uuid_unparse(disk_uuid
, fs_uuid
);
210 read_extent_buffer(eb
, disk_uuid
,
211 btrfs_header_chunk_tree_uuid(eb
),
214 chunk_uuid
[BTRFS_UUID_UNPARSED_SIZE
- 1] = '\0';
215 uuid_unparse(disk_uuid
, chunk_uuid
);
216 printf("fs uuid %s\nchunk uuid %s\n", fs_uuid
, chunk_uuid
);
219 static void print_file_extent_item(struct extent_buffer
*eb
,
220 struct btrfs_item
*item
,
222 struct btrfs_file_extent_item
*fi
)
224 int extent_type
= btrfs_file_extent_type(eb
, fi
);
226 if (extent_type
== BTRFS_FILE_EXTENT_INLINE
) {
227 printf("\t\tinline extent data size %u "
228 "ram %u compress %d\n",
229 btrfs_file_extent_inline_item_len(eb
, item
),
230 btrfs_file_extent_inline_len(eb
, slot
, fi
),
231 btrfs_file_extent_compression(eb
, fi
));
234 if (extent_type
== BTRFS_FILE_EXTENT_PREALLOC
) {
235 printf("\t\tprealloc data disk byte %llu nr %llu\n",
236 (unsigned long long)btrfs_file_extent_disk_bytenr(eb
, fi
),
237 (unsigned long long)btrfs_file_extent_disk_num_bytes(eb
, fi
));
238 printf("\t\tprealloc data offset %llu nr %llu\n",
239 (unsigned long long)btrfs_file_extent_offset(eb
, fi
),
240 (unsigned long long)btrfs_file_extent_num_bytes(eb
, fi
));
243 printf("\t\textent data disk byte %llu nr %llu\n",
244 (unsigned long long)btrfs_file_extent_disk_bytenr(eb
, fi
),
245 (unsigned long long)btrfs_file_extent_disk_num_bytes(eb
, fi
));
246 printf("\t\textent data offset %llu nr %llu ram %llu\n",
247 (unsigned long long)btrfs_file_extent_offset(eb
, fi
),
248 (unsigned long long)btrfs_file_extent_num_bytes(eb
, fi
),
249 (unsigned long long)btrfs_file_extent_ram_bytes(eb
, fi
));
250 printf("\t\textent compression %d\n",
251 btrfs_file_extent_compression(eb
, fi
));
254 void print_extent_item(struct extent_buffer
*eb
, int slot
, int metadata
)
256 struct btrfs_extent_item
*ei
;
257 struct btrfs_extent_inline_ref
*iref
;
258 struct btrfs_extent_data_ref
*dref
;
259 struct btrfs_shared_data_ref
*sref
;
260 struct btrfs_disk_key key
;
264 u32 item_size
= btrfs_item_size_nr(eb
, slot
);
268 if (item_size
< sizeof(*ei
)) {
269 #ifdef BTRFS_COMPAT_EXTENT_TREE_V0
270 struct btrfs_extent_item_v0
*ei0
;
271 BUG_ON(item_size
!= sizeof(*ei0
));
272 ei0
= btrfs_item_ptr(eb
, slot
, struct btrfs_extent_item_v0
);
273 printf("\t\textent refs %u\n",
274 btrfs_extent_refs_v0(eb
, ei0
));
281 ei
= btrfs_item_ptr(eb
, slot
, struct btrfs_extent_item
);
282 flags
= btrfs_extent_flags(eb
, ei
);
284 printf("\t\textent refs %llu gen %llu flags %llu\n",
285 (unsigned long long)btrfs_extent_refs(eb
, ei
),
286 (unsigned long long)btrfs_extent_generation(eb
, ei
),
287 (unsigned long long)flags
);
289 if (flags
& BTRFS_EXTENT_FLAG_TREE_BLOCK
&& !metadata
) {
290 struct btrfs_tree_block_info
*info
;
291 info
= (struct btrfs_tree_block_info
*)(ei
+ 1);
292 btrfs_tree_block_key(eb
, info
, &key
);
293 printf("\t\ttree block ");
294 btrfs_print_key(&key
);
295 printf(" level %d\n", btrfs_tree_block_level(eb
, info
));
296 iref
= (struct btrfs_extent_inline_ref
*)(info
+ 1);
297 } else if (metadata
) {
298 struct btrfs_key tmp
;
300 btrfs_item_key_to_cpu(eb
, &tmp
, slot
);
301 printf("\t\ttree block skinny level %d\n", (int)tmp
.offset
);
302 iref
= (struct btrfs_extent_inline_ref
*)(ei
+ 1);
304 iref
= (struct btrfs_extent_inline_ref
*)(ei
+ 1);
307 ptr
= (unsigned long)iref
;
308 end
= (unsigned long)ei
+ item_size
;
310 iref
= (struct btrfs_extent_inline_ref
*)ptr
;
311 type
= btrfs_extent_inline_ref_type(eb
, iref
);
312 offset
= btrfs_extent_inline_ref_offset(eb
, iref
);
314 case BTRFS_TREE_BLOCK_REF_KEY
:
315 printf("\t\ttree block backref root %llu\n",
316 (unsigned long long)offset
);
318 case BTRFS_SHARED_BLOCK_REF_KEY
:
319 printf("\t\tshared block backref parent %llu\n",
320 (unsigned long long)offset
);
322 case BTRFS_EXTENT_DATA_REF_KEY
:
323 dref
= (struct btrfs_extent_data_ref
*)(&iref
->offset
);
324 printf("\t\textent data backref root %llu "
325 "objectid %llu offset %llu count %u\n",
326 (unsigned long long)btrfs_extent_data_ref_root(eb
, dref
),
327 (unsigned long long)btrfs_extent_data_ref_objectid(eb
, dref
),
328 (unsigned long long)btrfs_extent_data_ref_offset(eb
, dref
),
329 btrfs_extent_data_ref_count(eb
, dref
));
331 case BTRFS_SHARED_DATA_REF_KEY
:
332 sref
= (struct btrfs_shared_data_ref
*)(iref
+ 1);
333 printf("\t\tshared data backref parent %llu count %u\n",
334 (unsigned long long)offset
,
335 btrfs_shared_data_ref_count(eb
, sref
));
340 ptr
+= btrfs_extent_inline_ref_size(type
);
345 #ifdef BTRFS_COMPAT_EXTENT_TREE_V0
346 static void print_extent_ref_v0(struct extent_buffer
*eb
, int slot
)
348 struct btrfs_extent_ref_v0
*ref0
;
350 ref0
= btrfs_item_ptr(eb
, slot
, struct btrfs_extent_ref_v0
);
351 printf("\t\textent back ref root %llu gen %llu "
352 "owner %llu num_refs %lu\n",
353 (unsigned long long)btrfs_ref_root_v0(eb
, ref0
),
354 (unsigned long long)btrfs_ref_generation_v0(eb
, ref0
),
355 (unsigned long long)btrfs_ref_objectid_v0(eb
, ref0
),
356 (unsigned long)btrfs_ref_count_v0(eb
, ref0
));
360 static void print_root_ref(struct extent_buffer
*leaf
, int slot
, char *tag
)
362 struct btrfs_root_ref
*ref
;
363 char namebuf
[BTRFS_NAME_LEN
];
366 ref
= btrfs_item_ptr(leaf
, slot
, struct btrfs_root_ref
);
367 namelen
= btrfs_root_ref_name_len(leaf
, ref
);
368 read_extent_buffer(leaf
, namebuf
, (unsigned long)(ref
+ 1), namelen
);
369 printf("\t\troot %s key dirid %llu sequence %llu name %.*s\n", tag
,
370 (unsigned long long)btrfs_root_ref_dirid(leaf
, ref
),
371 (unsigned long long)btrfs_root_ref_sequence(leaf
, ref
),
375 static int count_bytes(void *buf
, int len
, char b
)
379 for (i
= 0; i
< len
; i
++) {
380 if (((char*)buf
)[i
] == b
)
386 static void print_root(struct extent_buffer
*leaf
, int slot
)
388 struct btrfs_root_item
*ri
;
389 struct btrfs_root_item root_item
;
391 char uuid_str
[BTRFS_UUID_UNPARSED_SIZE
];
393 ri
= btrfs_item_ptr(leaf
, slot
, struct btrfs_root_item
);
394 len
= btrfs_item_size_nr(leaf
, slot
);
396 memset(&root_item
, 0, sizeof(root_item
));
397 read_extent_buffer(leaf
, &root_item
, (unsigned long)ri
, len
);
399 printf("\t\troot data bytenr %llu level %d dirid %llu refs %u gen %llu\n",
400 (unsigned long long)btrfs_root_bytenr(&root_item
),
401 btrfs_root_level(&root_item
),
402 (unsigned long long)btrfs_root_dirid(&root_item
),
403 btrfs_root_refs(&root_item
),
404 (unsigned long long)btrfs_root_generation(&root_item
));
406 if (root_item
.generation
== root_item
.generation_v2
) {
407 uuid_unparse(root_item
.uuid
, uuid_str
);
408 printf("\t\tuuid %s\n", uuid_str
);
409 if (count_bytes(root_item
.parent_uuid
, BTRFS_UUID_SIZE
, 0) != BTRFS_UUID_SIZE
) {
410 uuid_unparse(root_item
.parent_uuid
, uuid_str
);
411 printf("\t\tparent_uuid %s\n", uuid_str
);
413 if (count_bytes(root_item
.received_uuid
, BTRFS_UUID_SIZE
, 0) != BTRFS_UUID_SIZE
) {
414 uuid_unparse(root_item
.received_uuid
, uuid_str
);
415 printf("\t\treceived_uuid %s\n", uuid_str
);
417 if (root_item
.ctransid
) {
418 printf("\t\tctransid %llu otransid %llu stransid %llu rtransid %llu\n",
419 btrfs_root_ctransid(&root_item
),
420 btrfs_root_otransid(&root_item
),
421 btrfs_root_stransid(&root_item
),
422 btrfs_root_rtransid(&root_item
));
425 if (btrfs_root_refs(&root_item
) == 0) {
426 struct btrfs_key drop_key
;
427 btrfs_disk_key_to_cpu(&drop_key
,
428 &root_item
.drop_progress
);
430 btrfs_print_key(&root_item
.drop_progress
);
431 printf(" level %d\n", root_item
.drop_level
);
435 static void print_free_space_header(struct extent_buffer
*leaf
, int slot
)
437 struct btrfs_free_space_header
*header
;
438 struct btrfs_disk_key location
;
440 header
= btrfs_item_ptr(leaf
, slot
, struct btrfs_free_space_header
);
441 btrfs_free_space_key(leaf
, header
, &location
);
442 printf("\t\tlocation ");
443 btrfs_print_key(&location
);
445 printf("\t\tcache generation %llu entries %llu bitmaps %llu\n",
446 (unsigned long long)btrfs_free_space_generation(leaf
, header
),
447 (unsigned long long)btrfs_free_space_entries(leaf
, header
),
448 (unsigned long long)btrfs_free_space_bitmaps(leaf
, header
));
451 static void print_key_type(u64 objectid
, u8 type
)
453 if (type
== 0 && objectid
== BTRFS_FREE_SPACE_OBJECTID
) {
459 case BTRFS_INODE_ITEM_KEY
:
460 printf("INODE_ITEM");
462 case BTRFS_INODE_REF_KEY
:
465 case BTRFS_INODE_EXTREF_KEY
:
466 printf("INODE_EXTREF");
468 case BTRFS_DIR_ITEM_KEY
:
471 case BTRFS_DIR_INDEX_KEY
:
474 case BTRFS_DIR_LOG_ITEM_KEY
:
475 printf("DIR_LOG_ITEM");
477 case BTRFS_DIR_LOG_INDEX_KEY
:
478 printf("DIR_LOG_INDEX");
480 case BTRFS_XATTR_ITEM_KEY
:
481 printf("XATTR_ITEM");
483 case BTRFS_ORPHAN_ITEM_KEY
:
484 printf("ORPHAN_ITEM");
486 case BTRFS_ROOT_ITEM_KEY
:
489 case BTRFS_ROOT_REF_KEY
:
492 case BTRFS_ROOT_BACKREF_KEY
:
493 printf("ROOT_BACKREF");
495 case BTRFS_EXTENT_ITEM_KEY
:
496 printf("EXTENT_ITEM");
498 case BTRFS_METADATA_ITEM_KEY
:
499 printf("METADATA_ITEM");
501 case BTRFS_TREE_BLOCK_REF_KEY
:
502 printf("TREE_BLOCK_REF");
504 case BTRFS_SHARED_BLOCK_REF_KEY
:
505 printf("SHARED_BLOCK_REF");
507 case BTRFS_EXTENT_DATA_REF_KEY
:
508 printf("EXTENT_DATA_REF");
510 case BTRFS_SHARED_DATA_REF_KEY
:
511 printf("SHARED_DATA_REF");
513 case BTRFS_EXTENT_REF_V0_KEY
:
514 printf("EXTENT_REF_V0");
516 case BTRFS_CSUM_ITEM_KEY
:
519 case BTRFS_EXTENT_CSUM_KEY
:
520 printf("EXTENT_CSUM");
522 case BTRFS_EXTENT_DATA_KEY
:
523 printf("EXTENT_DATA");
525 case BTRFS_BLOCK_GROUP_ITEM_KEY
:
526 printf("BLOCK_GROUP_ITEM");
528 case BTRFS_CHUNK_ITEM_KEY
:
529 printf("CHUNK_ITEM");
531 case BTRFS_DEV_ITEM_KEY
:
534 case BTRFS_DEV_EXTENT_KEY
:
535 printf("DEV_EXTENT");
537 case BTRFS_BALANCE_ITEM_KEY
:
538 printf("BALANCE_ITEM");
540 case BTRFS_DEV_REPLACE_KEY
:
541 printf("DEV_REPLACE_ITEM");
543 case BTRFS_STRING_ITEM_KEY
:
544 printf("STRING_ITEM");
546 case BTRFS_QGROUP_STATUS_KEY
:
547 printf("BTRFS_STATUS_KEY");
549 case BTRFS_QGROUP_RELATION_KEY
:
550 printf("BTRFS_QGROUP_RELATION_KEY");
552 case BTRFS_QGROUP_INFO_KEY
:
553 printf("BTRFS_QGROUP_INFO_KEY");
555 case BTRFS_QGROUP_LIMIT_KEY
:
556 printf("BTRFS_QGROUP_LIMIT_KEY");
558 case BTRFS_DEV_STATS_KEY
:
559 printf("DEV_STATS_ITEM");
561 case BTRFS_UUID_KEY_SUBVOL
:
562 printf("BTRFS_UUID_KEY_SUBVOL");
564 case BTRFS_UUID_KEY_RECEIVED_SUBVOL
:
565 printf("BTRFS_UUID_KEY_RECEIVED_SUBVOL");
568 printf("UNKNOWN.%d", type
);
572 static void print_objectid(u64 objectid
, u8 type
)
575 case BTRFS_DEV_EXTENT_KEY
:
576 printf("%llu", (unsigned long long)objectid
); /* device id */
578 case BTRFS_QGROUP_RELATION_KEY
:
579 printf("%llu/%llu", objectid
>> 48,
580 objectid
& ((1ll << 48) - 1));
582 case BTRFS_UUID_KEY_SUBVOL
:
583 case BTRFS_UUID_KEY_RECEIVED_SUBVOL
:
584 printf("0x%016llx", (unsigned long long)objectid
);
589 case BTRFS_ROOT_TREE_OBJECTID
:
590 if (type
== BTRFS_DEV_ITEM_KEY
)
595 case BTRFS_EXTENT_TREE_OBJECTID
:
596 printf("EXTENT_TREE");
598 case BTRFS_CHUNK_TREE_OBJECTID
:
599 printf("CHUNK_TREE");
601 case BTRFS_DEV_TREE_OBJECTID
:
604 case BTRFS_FS_TREE_OBJECTID
:
607 case BTRFS_ROOT_TREE_DIR_OBJECTID
:
608 printf("ROOT_TREE_DIR");
610 case BTRFS_CSUM_TREE_OBJECTID
:
613 case BTRFS_BALANCE_OBJECTID
:
616 case BTRFS_ORPHAN_OBJECTID
:
619 case BTRFS_TREE_LOG_OBJECTID
:
622 case BTRFS_TREE_LOG_FIXUP_OBJECTID
:
625 case BTRFS_TREE_RELOC_OBJECTID
:
626 printf("TREE_RELOC");
628 case BTRFS_DATA_RELOC_TREE_OBJECTID
:
629 printf("DATA_RELOC_TREE");
631 case BTRFS_EXTENT_CSUM_OBJECTID
:
632 printf("EXTENT_CSUM");
634 case BTRFS_FREE_SPACE_OBJECTID
:
635 printf("FREE_SPACE");
637 case BTRFS_FREE_INO_OBJECTID
:
640 case BTRFS_QUOTA_TREE_OBJECTID
:
641 printf("QUOTA_TREE");
643 case BTRFS_UUID_TREE_OBJECTID
:
646 case BTRFS_MULTIPLE_OBJECTIDS
:
652 case BTRFS_FIRST_CHUNK_TREE_OBJECTID
:
653 if (type
== BTRFS_CHUNK_ITEM_KEY
) {
654 printf("FIRST_CHUNK_TREE");
659 printf("%llu", (unsigned long long)objectid
);
663 void btrfs_print_key(struct btrfs_disk_key
*disk_key
)
665 u64 objectid
= btrfs_disk_key_objectid(disk_key
);
666 u8 type
= btrfs_disk_key_type(disk_key
);
667 u64 offset
= btrfs_disk_key_offset(disk_key
);
670 print_objectid(objectid
, type
);
672 print_key_type(objectid
, type
);
674 case BTRFS_QGROUP_RELATION_KEY
:
675 case BTRFS_QGROUP_INFO_KEY
:
676 case BTRFS_QGROUP_LIMIT_KEY
:
677 printf(" %llu/%llu)", (unsigned long long)(offset
>> 48),
678 (unsigned long long)(offset
& ((1ll << 48) - 1)));
680 case BTRFS_UUID_KEY_SUBVOL
:
681 case BTRFS_UUID_KEY_RECEIVED_SUBVOL
:
682 printf(" 0x%016llx)", (unsigned long long)offset
);
685 if (offset
== (u64
)-1)
688 printf(" %llu)", (unsigned long long)offset
);
693 static void print_uuid_item(struct extent_buffer
*l
, unsigned long offset
,
696 if (item_size
& (sizeof(u64
) - 1)) {
697 printf("btrfs: uuid item with illegal size %lu!\n",
698 (unsigned long)item_size
);
704 read_extent_buffer(l
, &subvol_id
, offset
, sizeof(u64
));
705 printf("\t\tsubvol_id %llu\n",
706 (unsigned long long)le64_to_cpu(subvol_id
));
707 item_size
-= sizeof(u64
);
708 offset
+= sizeof(u64
);
712 void btrfs_print_leaf(struct btrfs_root
*root
, struct extent_buffer
*l
)
716 struct btrfs_item
*item
;
717 struct btrfs_dir_item
*di
;
718 struct btrfs_inode_item
*ii
;
719 struct btrfs_file_extent_item
*fi
;
720 struct btrfs_block_group_item
*bi
;
721 struct btrfs_extent_data_ref
*dref
;
722 struct btrfs_shared_data_ref
*sref
;
723 struct btrfs_inode_ref
*iref
;
724 struct btrfs_inode_extref
*iref2
;
725 struct btrfs_dev_extent
*dev_extent
;
726 struct btrfs_disk_key disk_key
;
727 struct btrfs_block_group_item bg_item
;
728 struct btrfs_dir_log_item
*dlog
;
729 struct btrfs_qgroup_info_item
*qg_info
;
730 struct btrfs_qgroup_limit_item
*qg_limit
;
731 struct btrfs_qgroup_status_item
*qg_status
;
732 u32 nr
= btrfs_header_nritems(l
);
736 printf("leaf %llu items %d free space %d generation %llu owner %llu\n",
737 (unsigned long long)btrfs_header_bytenr(l
), nr
,
738 btrfs_leaf_free_space(root
, l
),
739 (unsigned long long)btrfs_header_generation(l
),
740 (unsigned long long)btrfs_header_owner(l
));
743 for (i
= 0 ; i
< nr
; i
++) {
744 item
= btrfs_item_nr(i
);
745 btrfs_item_key(l
, &disk_key
, i
);
746 objectid
= btrfs_disk_key_objectid(&disk_key
);
747 type
= btrfs_disk_key_type(&disk_key
);
748 printf("\titem %d ", i
);
749 btrfs_print_key(&disk_key
);
750 printf(" itemoff %d itemsize %d\n",
751 btrfs_item_offset(l
, item
),
752 btrfs_item_size(l
, item
));
754 if (type
== 0 && objectid
== BTRFS_FREE_SPACE_OBJECTID
)
755 print_free_space_header(l
, i
);
758 case BTRFS_INODE_ITEM_KEY
:
759 ii
= btrfs_item_ptr(l
, i
, struct btrfs_inode_item
);
760 printf("\t\tinode generation %llu transid %llu size %llu block group %llu mode %o links %u\n",
761 (unsigned long long)btrfs_inode_generation(l
, ii
),
762 (unsigned long long)btrfs_inode_transid(l
, ii
),
763 (unsigned long long)btrfs_inode_size(l
, ii
),
764 (unsigned long long)btrfs_inode_block_group(l
,ii
),
765 btrfs_inode_mode(l
, ii
),
766 btrfs_inode_nlink(l
, ii
));
768 case BTRFS_INODE_REF_KEY
:
769 iref
= btrfs_item_ptr(l
, i
, struct btrfs_inode_ref
);
770 print_inode_ref_item(l
, item
, iref
);
772 case BTRFS_INODE_EXTREF_KEY
:
773 iref2
= btrfs_item_ptr(l
, i
, struct btrfs_inode_extref
);
774 print_inode_extref_item(l
, item
, iref2
);
776 case BTRFS_DIR_ITEM_KEY
:
777 case BTRFS_DIR_INDEX_KEY
:
778 case BTRFS_XATTR_ITEM_KEY
:
779 di
= btrfs_item_ptr(l
, i
, struct btrfs_dir_item
);
780 print_dir_item(l
, item
, di
);
782 case BTRFS_DIR_LOG_INDEX_KEY
:
783 case BTRFS_DIR_LOG_ITEM_KEY
:
784 dlog
= btrfs_item_ptr(l
, i
, struct btrfs_dir_log_item
);
785 printf("\t\tdir log end %Lu\n",
786 (unsigned long long)btrfs_dir_log_end(l
, dlog
));
788 case BTRFS_ORPHAN_ITEM_KEY
:
789 printf("\t\torphan item\n");
791 case BTRFS_ROOT_ITEM_KEY
:
794 case BTRFS_ROOT_REF_KEY
:
795 print_root_ref(l
, i
, "ref");
797 case BTRFS_ROOT_BACKREF_KEY
:
798 print_root_ref(l
, i
, "backref");
800 case BTRFS_EXTENT_ITEM_KEY
:
801 print_extent_item(l
, i
, 0);
803 case BTRFS_METADATA_ITEM_KEY
:
804 print_extent_item(l
, i
, 1);
806 case BTRFS_TREE_BLOCK_REF_KEY
:
807 printf("\t\ttree block backref\n");
809 case BTRFS_SHARED_BLOCK_REF_KEY
:
810 printf("\t\tshared block backref\n");
812 case BTRFS_EXTENT_DATA_REF_KEY
:
813 dref
= btrfs_item_ptr(l
, i
, struct btrfs_extent_data_ref
);
814 printf("\t\textent data backref root %llu "
815 "objectid %llu offset %llu count %u\n",
816 (unsigned long long)btrfs_extent_data_ref_root(l
, dref
),
817 (unsigned long long)btrfs_extent_data_ref_objectid(l
, dref
),
818 (unsigned long long)btrfs_extent_data_ref_offset(l
, dref
),
819 btrfs_extent_data_ref_count(l
, dref
));
821 case BTRFS_SHARED_DATA_REF_KEY
:
822 sref
= btrfs_item_ptr(l
, i
, struct btrfs_shared_data_ref
);
823 printf("\t\tshared data backref count %u\n",
824 btrfs_shared_data_ref_count(l
, sref
));
826 case BTRFS_EXTENT_REF_V0_KEY
:
827 #ifdef BTRFS_COMPAT_EXTENT_TREE_V0
828 print_extent_ref_v0(l
, i
);
833 case BTRFS_CSUM_ITEM_KEY
:
834 printf("\t\tcsum item\n");
836 case BTRFS_EXTENT_CSUM_KEY
:
837 printf("\t\textent csum item\n");
839 case BTRFS_EXTENT_DATA_KEY
:
840 fi
= btrfs_item_ptr(l
, i
,
841 struct btrfs_file_extent_item
);
842 print_file_extent_item(l
, item
, i
, fi
);
844 case BTRFS_BLOCK_GROUP_ITEM_KEY
:
845 bi
= btrfs_item_ptr(l
, i
,
846 struct btrfs_block_group_item
);
847 read_extent_buffer(l
, &bg_item
, (unsigned long)bi
,
849 printf("\t\tblock group used %llu chunk_objectid %llu flags %llu\n",
850 (unsigned long long)btrfs_block_group_used(&bg_item
),
851 (unsigned long long)btrfs_block_group_chunk_objectid(&bg_item
),
852 (unsigned long long)btrfs_block_group_flags(&bg_item
));
854 case BTRFS_CHUNK_ITEM_KEY
:
855 print_chunk(l
, btrfs_item_ptr(l
, i
, struct btrfs_chunk
));
857 case BTRFS_DEV_ITEM_KEY
:
858 print_dev_item(l
, btrfs_item_ptr(l
, i
,
859 struct btrfs_dev_item
));
861 case BTRFS_DEV_EXTENT_KEY
:
862 dev_extent
= btrfs_item_ptr(l
, i
,
863 struct btrfs_dev_extent
);
864 printf("\t\tdev extent chunk_tree %llu\n"
865 "\t\tchunk objectid %llu chunk offset %llu "
868 btrfs_dev_extent_chunk_tree(l
, dev_extent
),
870 btrfs_dev_extent_chunk_objectid(l
, dev_extent
),
872 btrfs_dev_extent_chunk_offset(l
, dev_extent
),
874 btrfs_dev_extent_length(l
, dev_extent
));
876 case BTRFS_QGROUP_STATUS_KEY
:
877 qg_status
= btrfs_item_ptr(l
, i
,
878 struct btrfs_qgroup_status_item
);
879 printf("\t\tversion %llu generation %llu flags %#llx "
882 btrfs_qgroup_status_version(l
, qg_status
),
884 btrfs_qgroup_status_generation(l
, qg_status
),
886 btrfs_qgroup_status_flags(l
, qg_status
),
888 btrfs_qgroup_status_scan(l
, qg_status
));
890 case BTRFS_QGROUP_RELATION_KEY
:
892 case BTRFS_QGROUP_INFO_KEY
:
893 qg_info
= btrfs_item_ptr(l
, i
,
894 struct btrfs_qgroup_info_item
);
895 printf("\t\tgeneration %llu\n"
896 "\t\treferenced %llu referenced compressed %llu\n"
897 "\t\texclusive %llu exclusive compressed %llu\n",
899 btrfs_qgroup_info_generation(l
, qg_info
),
901 btrfs_qgroup_info_referenced(l
, qg_info
),
903 btrfs_qgroup_info_referenced_compressed(l
,
906 btrfs_qgroup_info_exclusive(l
, qg_info
),
908 btrfs_qgroup_info_exclusive_compressed(l
,
911 case BTRFS_QGROUP_LIMIT_KEY
:
912 qg_limit
= btrfs_item_ptr(l
, i
,
913 struct btrfs_qgroup_limit_item
);
914 printf("\t\tflags %llx\n"
915 "\t\tmax referenced %lld max exclusive %lld\n"
916 "\t\trsv referenced %lld rsv exclusive %lld\n",
918 btrfs_qgroup_limit_flags(l
, qg_limit
),
920 btrfs_qgroup_limit_max_referenced(l
, qg_limit
),
922 btrfs_qgroup_limit_max_exclusive(l
, qg_limit
),
924 btrfs_qgroup_limit_rsv_referenced(l
, qg_limit
),
926 btrfs_qgroup_limit_rsv_exclusive(l
, qg_limit
));
928 case BTRFS_UUID_KEY_SUBVOL
:
929 case BTRFS_UUID_KEY_RECEIVED_SUBVOL
:
930 print_uuid_item(l
, btrfs_item_ptr_offset(l
, i
),
931 btrfs_item_size_nr(l
, i
));
933 case BTRFS_STRING_ITEM_KEY
:
934 /* dirty, but it's simple */
935 str
= l
->data
+ btrfs_item_ptr_offset(l
, i
);
936 printf("\t\titem data %.*s\n", btrfs_item_size(l
, item
), str
);
938 case BTRFS_DEV_STATS_KEY
:
939 printf("\t\tdevice stats\n");
946 void btrfs_print_tree(struct btrfs_root
*root
, struct extent_buffer
*eb
, int follow
)
951 struct btrfs_disk_key disk_key
;
952 struct btrfs_key key
;
956 nr
= btrfs_header_nritems(eb
);
957 if (btrfs_is_leaf(eb
)) {
958 btrfs_print_leaf(root
, eb
);
961 printf("node %llu level %d items %d free %u generation %llu owner %llu\n",
962 (unsigned long long)eb
->start
,
963 btrfs_header_level(eb
), nr
,
964 (u32
)BTRFS_NODEPTRS_PER_BLOCK(root
) - nr
,
965 (unsigned long long)btrfs_header_generation(eb
),
966 (unsigned long long)btrfs_header_owner(eb
));
969 size
= btrfs_level_size(root
, btrfs_header_level(eb
) - 1);
970 for (i
= 0; i
< nr
; i
++) {
971 u64 blocknr
= btrfs_node_blockptr(eb
, i
);
972 btrfs_node_key(eb
, &disk_key
, i
);
973 btrfs_disk_key_to_cpu(&key
, &disk_key
);
975 btrfs_print_key(&disk_key
);
976 printf(" block %llu (%llu) gen %llu\n",
977 (unsigned long long)blocknr
,
978 (unsigned long long)blocknr
/ size
,
979 (unsigned long long)btrfs_node_ptr_generation(eb
, i
));
985 for (i
= 0; i
< nr
; i
++) {
986 struct extent_buffer
*next
= read_tree_block(root
,
987 btrfs_node_blockptr(eb
, i
),
989 btrfs_node_ptr_generation(eb
, i
));
991 fprintf(stderr
, "failed to read %llu in tree %llu\n",
992 (unsigned long long)btrfs_node_blockptr(eb
, i
),
993 (unsigned long long)btrfs_header_owner(eb
));
996 if (btrfs_is_leaf(next
) &&
997 btrfs_header_level(eb
) != 1)
999 if (btrfs_header_level(next
) !=
1000 btrfs_header_level(eb
) - 1)
1002 btrfs_print_tree(root
, next
, 1);
1003 free_extent_buffer(next
);