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 /* Caller should ensure sizeof(*ret)>=21 "DATA|METADATA|RAID10" */
164 static void bg_flags_to_str(u64 flags, char *ret)
168 if (flags & BTRFS_BLOCK_GROUP_DATA) {
172 if (flags & BTRFS_BLOCK_GROUP_METADATA) {
175 strcat(ret, "METADATA");
177 if (flags & BTRFS_BLOCK_GROUP_SYSTEM) {
180 strcat(ret, "SYSTEM");
182 switch (flags & BTRFS_BLOCK_GROUP_PROFILE_MASK) {
183 case BTRFS_BLOCK_GROUP_RAID0:
184 strcat(ret, "|RAID0");
186 case BTRFS_BLOCK_GROUP_RAID1:
187 strcat(ret, "|RAID1");
189 case BTRFS_BLOCK_GROUP_DUP:
192 case BTRFS_BLOCK_GROUP_RAID10:
193 strcat(ret, "|RAID10");
195 case BTRFS_BLOCK_GROUP_RAID5:
196 strcat(ret, "|RAID5");
198 case BTRFS_BLOCK_GROUP_RAID6:
199 strcat(ret, "|RAID6");
206 /* Caller should ensure sizeof(*ret)>= 26 "OFF|SCANNING|INCONSISTENT" */
207 static void qgroup_flags_to_str(u64 flags, char *ret)
209 if (flags & BTRFS_QGROUP_STATUS_FLAG_ON)
214 if (flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN)
215 strcat(ret, "|SCANNING");
216 if (flags & BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT)
217 strcat(ret, "|INCONSISTENT");
220 void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk)
222 int num_stripes = btrfs_chunk_num_stripes(eb, chunk);
224 char chunk_flags_str[32] = {0};
226 bg_flags_to_str(btrfs_chunk_type(eb, chunk), chunk_flags_str);
227 printf("\t\tlength %llu owner %llu stripe_len %llu type %s\n",
228 (unsigned long long)btrfs_chunk_length(eb, chunk),
229 (unsigned long long)btrfs_chunk_owner(eb, chunk),
230 (unsigned long long)btrfs_chunk_stripe_len(eb, chunk),
232 printf("\t\tio_align %u io_width %u sector_size %u\n",
233 btrfs_chunk_io_align(eb, chunk),
234 btrfs_chunk_io_width(eb, chunk),
235 btrfs_chunk_sector_size(eb, chunk));
236 printf("\t\tnum_stripes %hu sub_stripes %hu\n", num_stripes,
237 btrfs_chunk_sub_stripes(eb, chunk));
238 for (i = 0 ; i < num_stripes ; i++) {
239 unsigned char dev_uuid[BTRFS_UUID_SIZE];
240 char str_dev_uuid[BTRFS_UUID_UNPARSED_SIZE];
242 read_extent_buffer(eb, dev_uuid,
243 (unsigned long)btrfs_stripe_dev_uuid_nr(chunk, i),
245 uuid_unparse(dev_uuid, str_dev_uuid);
246 printf("\t\t\tstripe %d devid %llu offset %llu\n", i,
247 (unsigned long long)btrfs_stripe_devid_nr(eb, chunk, i),
248 (unsigned long long)btrfs_stripe_offset_nr(eb, chunk, i));
249 printf("\t\t\tdev uuid: %s\n", str_dev_uuid);
253 static void print_dev_item(struct extent_buffer *eb,
254 struct btrfs_dev_item *dev_item)
256 char uuid_str[BTRFS_UUID_UNPARSED_SIZE];
257 char fsid_str[BTRFS_UUID_UNPARSED_SIZE];
258 u8 uuid[BTRFS_UUID_SIZE];
259 u8 fsid[BTRFS_UUID_SIZE];
261 read_extent_buffer(eb, uuid,
262 (unsigned long)btrfs_device_uuid(dev_item),
264 uuid_unparse(uuid, uuid_str);
265 read_extent_buffer(eb, fsid,
266 (unsigned long)btrfs_device_fsid(dev_item),
268 uuid_unparse(fsid, fsid_str);
269 printf("\t\tdevid %llu total_bytes %llu bytes_used %Lu\n"
270 "\t\tio_align %u io_width %u sector_size %u type %llu\n"
271 "\t\tgeneration %llu start_offset %llu dev_group %u\n"
272 "\t\tseek_speed %hhu bandwidth %hhu\n"
275 (unsigned long long)btrfs_device_id(eb, dev_item),
276 (unsigned long long)btrfs_device_total_bytes(eb, dev_item),
277 (unsigned long long)btrfs_device_bytes_used(eb, dev_item),
278 btrfs_device_io_align(eb, dev_item),
279 btrfs_device_io_width(eb, dev_item),
280 btrfs_device_sector_size(eb, dev_item),
281 (unsigned long long)btrfs_device_type(eb, dev_item),
282 (unsigned long long)btrfs_device_generation(eb, dev_item),
283 (unsigned long long)btrfs_device_start_offset(eb, dev_item),
284 btrfs_device_group(eb, dev_item),
285 btrfs_device_seek_speed(eb, dev_item),
286 btrfs_device_bandwidth(eb, dev_item),
290 static void print_uuids(struct extent_buffer *eb)
292 char fs_uuid[BTRFS_UUID_UNPARSED_SIZE];
293 char chunk_uuid[BTRFS_UUID_UNPARSED_SIZE];
294 u8 disk_uuid[BTRFS_UUID_SIZE];
296 read_extent_buffer(eb, disk_uuid, btrfs_header_fsid(),
299 fs_uuid[BTRFS_UUID_UNPARSED_SIZE - 1] = '\0';
300 uuid_unparse(disk_uuid, fs_uuid);
302 read_extent_buffer(eb, disk_uuid,
303 btrfs_header_chunk_tree_uuid(eb),
306 chunk_uuid[BTRFS_UUID_UNPARSED_SIZE - 1] = '\0';
307 uuid_unparse(disk_uuid, chunk_uuid);
308 printf("fs uuid %s\nchunk uuid %s\n", fs_uuid, chunk_uuid);
311 static void compress_type_to_str(u8 compress_type, char *ret)
313 switch (compress_type) {
314 case BTRFS_COMPRESS_NONE:
317 case BTRFS_COMPRESS_ZLIB:
320 case BTRFS_COMPRESS_LZO:
324 sprintf(ret, "UNKNOWN.%d", compress_type);
328 static void print_file_extent_item(struct extent_buffer *eb,
329 struct btrfs_item *item,
331 struct btrfs_file_extent_item *fi)
333 int extent_type = btrfs_file_extent_type(eb, fi);
334 char compress_str[16];
336 compress_type_to_str(btrfs_file_extent_compression(eb, fi),
339 if (extent_type == BTRFS_FILE_EXTENT_INLINE) {
340 printf("\t\tinline extent data size %u "
341 "ram %u compress(%s)\n",
342 btrfs_file_extent_inline_item_len(eb, item),
343 btrfs_file_extent_inline_len(eb, slot, fi),
347 if (extent_type == BTRFS_FILE_EXTENT_PREALLOC) {
348 printf("\t\tprealloc data disk byte %llu nr %llu\n",
349 (unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
350 (unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
351 printf("\t\tprealloc data offset %llu nr %llu\n",
352 (unsigned long long)btrfs_file_extent_offset(eb, fi),
353 (unsigned long long)btrfs_file_extent_num_bytes(eb, fi));
356 printf("\t\textent data disk byte %llu nr %llu\n",
357 (unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
358 (unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
359 printf("\t\textent data offset %llu nr %llu ram %llu\n",
360 (unsigned long long)btrfs_file_extent_offset(eb, fi),
361 (unsigned long long)btrfs_file_extent_num_bytes(eb, fi),
362 (unsigned long long)btrfs_file_extent_ram_bytes(eb, fi));
363 printf("\t\textent compression(%s)\n", compress_str);
366 /* Caller should ensure sizeof(*ret) >= 16("DATA|TREE_BLOCK") */
367 static void extent_flags_to_str(u64 flags, char *ret)
371 if (flags & BTRFS_EXTENT_FLAG_DATA) {
375 if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK) {
380 strcat(ret, "TREE_BLOCK");
382 if (flags & BTRFS_BLOCK_FLAG_FULL_BACKREF) {
384 strcat(ret, "FULL_BACKREF");
388 void print_extent_item(struct extent_buffer *eb, int slot, int metadata)
390 struct btrfs_extent_item *ei;
391 struct btrfs_extent_inline_ref *iref;
392 struct btrfs_extent_data_ref *dref;
393 struct btrfs_shared_data_ref *sref;
394 struct btrfs_disk_key key;
398 u32 item_size = btrfs_item_size_nr(eb, slot);
401 char flags_str[32] = {0};
403 if (item_size < sizeof(*ei)) {
404 #ifdef BTRFS_COMPAT_EXTENT_TREE_V0
405 struct btrfs_extent_item_v0 *ei0;
406 BUG_ON(item_size != sizeof(*ei0));
407 ei0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_item_v0);
408 printf("\t\textent refs %u\n",
409 btrfs_extent_refs_v0(eb, ei0));
416 ei = btrfs_item_ptr(eb, slot, struct btrfs_extent_item);
417 flags = btrfs_extent_flags(eb, ei);
418 extent_flags_to_str(flags, flags_str);
420 printf("\t\textent refs %llu gen %llu flags %s\n",
421 (unsigned long long)btrfs_extent_refs(eb, ei),
422 (unsigned long long)btrfs_extent_generation(eb, ei),
425 if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK && !metadata) {
426 struct btrfs_tree_block_info *info;
427 info = (struct btrfs_tree_block_info *)(ei + 1);
428 btrfs_tree_block_key(eb, info, &key);
429 printf("\t\ttree block ");
430 btrfs_print_key(&key);
431 printf(" level %d\n", btrfs_tree_block_level(eb, info));
432 iref = (struct btrfs_extent_inline_ref *)(info + 1);
433 } else if (metadata) {
434 struct btrfs_key tmp;
436 btrfs_item_key_to_cpu(eb, &tmp, slot);
437 printf("\t\ttree block skinny level %d\n", (int)tmp.offset);
438 iref = (struct btrfs_extent_inline_ref *)(ei + 1);
440 iref = (struct btrfs_extent_inline_ref *)(ei + 1);
443 ptr = (unsigned long)iref;
444 end = (unsigned long)ei + item_size;
446 iref = (struct btrfs_extent_inline_ref *)ptr;
447 type = btrfs_extent_inline_ref_type(eb, iref);
448 offset = btrfs_extent_inline_ref_offset(eb, iref);
450 case BTRFS_TREE_BLOCK_REF_KEY:
451 printf("\t\ttree block backref root %llu\n",
452 (unsigned long long)offset);
454 case BTRFS_SHARED_BLOCK_REF_KEY:
455 printf("\t\tshared block backref parent %llu\n",
456 (unsigned long long)offset);
458 case BTRFS_EXTENT_DATA_REF_KEY:
459 dref = (struct btrfs_extent_data_ref *)(&iref->offset);
460 printf("\t\textent data backref root %llu "
461 "objectid %llu offset %llu count %u\n",
462 (unsigned long long)btrfs_extent_data_ref_root(eb, dref),
463 (unsigned long long)btrfs_extent_data_ref_objectid(eb, dref),
464 (unsigned long long)btrfs_extent_data_ref_offset(eb, dref),
465 btrfs_extent_data_ref_count(eb, dref));
467 case BTRFS_SHARED_DATA_REF_KEY:
468 sref = (struct btrfs_shared_data_ref *)(iref + 1);
469 printf("\t\tshared data backref parent %llu count %u\n",
470 (unsigned long long)offset,
471 btrfs_shared_data_ref_count(eb, sref));
476 ptr += btrfs_extent_inline_ref_size(type);
481 #ifdef BTRFS_COMPAT_EXTENT_TREE_V0
482 static void print_extent_ref_v0(struct extent_buffer *eb, int slot)
484 struct btrfs_extent_ref_v0 *ref0;
486 ref0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_ref_v0);
487 printf("\t\textent back ref root %llu gen %llu "
488 "owner %llu num_refs %lu\n",
489 (unsigned long long)btrfs_ref_root_v0(eb, ref0),
490 (unsigned long long)btrfs_ref_generation_v0(eb, ref0),
491 (unsigned long long)btrfs_ref_objectid_v0(eb, ref0),
492 (unsigned long)btrfs_ref_count_v0(eb, ref0));
496 static void print_root_ref(struct extent_buffer *leaf, int slot, char *tag)
498 struct btrfs_root_ref *ref;
499 char namebuf[BTRFS_NAME_LEN];
502 ref = btrfs_item_ptr(leaf, slot, struct btrfs_root_ref);
503 namelen = btrfs_root_ref_name_len(leaf, ref);
504 read_extent_buffer(leaf, namebuf, (unsigned long)(ref + 1), namelen);
505 printf("\t\troot %s key dirid %llu sequence %llu name %.*s\n", tag,
506 (unsigned long long)btrfs_root_ref_dirid(leaf, ref),
507 (unsigned long long)btrfs_root_ref_sequence(leaf, ref),
511 static int count_bytes(void *buf, int len, char b)
515 for (i = 0; i < len; i++) {
516 if (((char*)buf)[i] == b)
523 * Caller must ensure sizeof(*ret) >= 7 "RDONLY"
525 static void root_flags_to_str(u64 flags, char *ret)
527 if (flags & BTRFS_ROOT_SUBVOL_RDONLY)
528 strcat(ret, "RDONLY");
533 static void print_root(struct extent_buffer *leaf, int slot)
535 struct btrfs_root_item *ri;
536 struct btrfs_root_item root_item;
538 char uuid_str[BTRFS_UUID_UNPARSED_SIZE];
539 char flags_str[32] = {0};
541 ri = btrfs_item_ptr(leaf, slot, struct btrfs_root_item);
542 len = btrfs_item_size_nr(leaf, slot);
544 memset(&root_item, 0, sizeof(root_item));
545 read_extent_buffer(leaf, &root_item, (unsigned long)ri, len);
546 root_flags_to_str(btrfs_root_flags(&root_item), flags_str);
548 printf("\t\troot data bytenr %llu level %d dirid %llu refs %u gen %llu lastsnap %llu\n",
549 (unsigned long long)btrfs_root_bytenr(&root_item),
550 btrfs_root_level(&root_item),
551 (unsigned long long)btrfs_root_dirid(&root_item),
552 btrfs_root_refs(&root_item),
553 (unsigned long long)btrfs_root_generation(&root_item),
554 (unsigned long long)btrfs_root_last_snapshot(&root_item));
555 printf("\t\tflags 0x%llx(%s)\n", btrfs_root_flags(&root_item),
558 if (root_item.generation == root_item.generation_v2) {
559 uuid_unparse(root_item.uuid, uuid_str);
560 printf("\t\tuuid %s\n", uuid_str);
561 if (count_bytes(root_item.parent_uuid, BTRFS_UUID_SIZE, 0) != BTRFS_UUID_SIZE) {
562 uuid_unparse(root_item.parent_uuid, uuid_str);
563 printf("\t\tparent_uuid %s\n", uuid_str);
565 if (count_bytes(root_item.received_uuid, BTRFS_UUID_SIZE, 0) != BTRFS_UUID_SIZE) {
566 uuid_unparse(root_item.received_uuid, uuid_str);
567 printf("\t\treceived_uuid %s\n", uuid_str);
569 if (root_item.ctransid) {
570 printf("\t\tctransid %llu otransid %llu stransid %llu rtransid %llu\n",
571 btrfs_root_ctransid(&root_item),
572 btrfs_root_otransid(&root_item),
573 btrfs_root_stransid(&root_item),
574 btrfs_root_rtransid(&root_item));
577 if (btrfs_root_refs(&root_item) == 0) {
578 struct btrfs_key drop_key;
579 btrfs_disk_key_to_cpu(&drop_key,
580 &root_item.drop_progress);
582 btrfs_print_key(&root_item.drop_progress);
583 printf(" level %d\n", root_item.drop_level);
587 static void print_free_space_header(struct extent_buffer *leaf, int slot)
589 struct btrfs_free_space_header *header;
590 struct btrfs_disk_key location;
592 header = btrfs_item_ptr(leaf, slot, struct btrfs_free_space_header);
593 btrfs_free_space_key(leaf, header, &location);
594 printf("\t\tlocation ");
595 btrfs_print_key(&location);
597 printf("\t\tcache generation %llu entries %llu bitmaps %llu\n",
598 (unsigned long long)btrfs_free_space_generation(leaf, header),
599 (unsigned long long)btrfs_free_space_entries(leaf, header),
600 (unsigned long long)btrfs_free_space_bitmaps(leaf, header));
603 void print_key_type(FILE *stream, u64 objectid, u8 type)
605 if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID) {
606 fprintf(stream, "UNTYPED");
611 case BTRFS_INODE_ITEM_KEY:
612 fprintf(stream, "INODE_ITEM");
614 case BTRFS_INODE_REF_KEY:
615 fprintf(stream, "INODE_REF");
617 case BTRFS_INODE_EXTREF_KEY:
618 fprintf(stream, "INODE_EXTREF");
620 case BTRFS_DIR_ITEM_KEY:
621 fprintf(stream, "DIR_ITEM");
623 case BTRFS_DIR_INDEX_KEY:
624 fprintf(stream, "DIR_INDEX");
626 case BTRFS_DIR_LOG_ITEM_KEY:
627 fprintf(stream, "DIR_LOG_ITEM");
629 case BTRFS_DIR_LOG_INDEX_KEY:
630 fprintf(stream, "DIR_LOG_INDEX");
632 case BTRFS_XATTR_ITEM_KEY:
633 fprintf(stream, "XATTR_ITEM");
635 case BTRFS_ORPHAN_ITEM_KEY:
636 fprintf(stream, "ORPHAN_ITEM");
638 case BTRFS_ROOT_ITEM_KEY:
639 fprintf(stream, "ROOT_ITEM");
641 case BTRFS_ROOT_REF_KEY:
642 fprintf(stream, "ROOT_REF");
644 case BTRFS_ROOT_BACKREF_KEY:
645 fprintf(stream, "ROOT_BACKREF");
647 case BTRFS_EXTENT_ITEM_KEY:
648 fprintf(stream, "EXTENT_ITEM");
650 case BTRFS_METADATA_ITEM_KEY:
651 fprintf(stream, "METADATA_ITEM");
653 case BTRFS_TREE_BLOCK_REF_KEY:
654 fprintf(stream, "TREE_BLOCK_REF");
656 case BTRFS_SHARED_BLOCK_REF_KEY:
657 fprintf(stream, "SHARED_BLOCK_REF");
659 case BTRFS_EXTENT_DATA_REF_KEY:
660 fprintf(stream, "EXTENT_DATA_REF");
662 case BTRFS_SHARED_DATA_REF_KEY:
663 fprintf(stream, "SHARED_DATA_REF");
665 case BTRFS_EXTENT_REF_V0_KEY:
666 fprintf(stream, "EXTENT_REF_V0");
668 case BTRFS_CSUM_ITEM_KEY:
669 fprintf(stream, "CSUM_ITEM");
671 case BTRFS_EXTENT_CSUM_KEY:
672 fprintf(stream, "EXTENT_CSUM");
674 case BTRFS_EXTENT_DATA_KEY:
675 fprintf(stream, "EXTENT_DATA");
677 case BTRFS_BLOCK_GROUP_ITEM_KEY:
678 fprintf(stream, "BLOCK_GROUP_ITEM");
680 case BTRFS_FREE_SPACE_INFO_KEY:
681 fprintf(stream, "FREE_SPACE_INFO");
683 case BTRFS_FREE_SPACE_EXTENT_KEY:
684 fprintf(stream, "FREE_SPACE_EXTENT");
686 case BTRFS_FREE_SPACE_BITMAP_KEY:
687 fprintf(stream, "FREE_SPACE_BITMAP");
689 case BTRFS_CHUNK_ITEM_KEY:
690 fprintf(stream, "CHUNK_ITEM");
692 case BTRFS_DEV_ITEM_KEY:
693 fprintf(stream, "DEV_ITEM");
695 case BTRFS_DEV_EXTENT_KEY:
696 fprintf(stream, "DEV_EXTENT");
698 case BTRFS_BALANCE_ITEM_KEY:
699 fprintf(stream, "BALANCE_ITEM");
701 case BTRFS_DEV_REPLACE_KEY:
702 fprintf(stream, "DEV_REPLACE");
704 case BTRFS_STRING_ITEM_KEY:
705 fprintf(stream, "STRING_ITEM");
707 case BTRFS_QGROUP_STATUS_KEY:
708 fprintf(stream, "QGROUP_STATUS");
710 case BTRFS_QGROUP_RELATION_KEY:
711 fprintf(stream, "QGROUP_RELATION");
713 case BTRFS_QGROUP_INFO_KEY:
714 fprintf(stream, "QGROUP_INFO");
716 case BTRFS_QGROUP_LIMIT_KEY:
717 fprintf(stream, "QGROUP_LIMIT");
719 case BTRFS_DEV_STATS_KEY:
720 fprintf(stream, "DEV_STATS");
722 case BTRFS_UUID_KEY_SUBVOL:
723 fprintf(stream, "UUID_KEY_SUBVOL");
725 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
726 fprintf(stream, "UUID_KEY_RECEIVED_SUBVOL");
729 fprintf(stream, "UNKNOWN.%d", type);
733 void print_objectid(FILE *stream, u64 objectid, u8 type)
736 case BTRFS_DEV_EXTENT_KEY:
738 fprintf(stream, "%llu", (unsigned long long)objectid);
740 case BTRFS_QGROUP_RELATION_KEY:
741 fprintf(stream, "%llu/%llu", btrfs_qgroup_level(objectid),
742 btrfs_qgroup_subvid(objectid));
744 case BTRFS_UUID_KEY_SUBVOL:
745 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
746 fprintf(stream, "0x%016llx", (unsigned long long)objectid);
751 case BTRFS_ROOT_TREE_OBJECTID:
752 if (type == BTRFS_DEV_ITEM_KEY)
753 fprintf(stream, "DEV_ITEMS");
755 fprintf(stream, "ROOT_TREE");
757 case BTRFS_EXTENT_TREE_OBJECTID:
758 fprintf(stream, "EXTENT_TREE");
760 case BTRFS_CHUNK_TREE_OBJECTID:
761 fprintf(stream, "CHUNK_TREE");
763 case BTRFS_DEV_TREE_OBJECTID:
764 fprintf(stream, "DEV_TREE");
766 case BTRFS_FS_TREE_OBJECTID:
767 fprintf(stream, "FS_TREE");
769 case BTRFS_ROOT_TREE_DIR_OBJECTID:
770 fprintf(stream, "ROOT_TREE_DIR");
772 case BTRFS_CSUM_TREE_OBJECTID:
773 fprintf(stream, "CSUM_TREE");
775 case BTRFS_BALANCE_OBJECTID:
776 fprintf(stream, "BALANCE");
778 case BTRFS_ORPHAN_OBJECTID:
779 fprintf(stream, "ORPHAN");
781 case BTRFS_TREE_LOG_OBJECTID:
782 fprintf(stream, "TREE_LOG");
784 case BTRFS_TREE_LOG_FIXUP_OBJECTID:
785 fprintf(stream, "LOG_FIXUP");
787 case BTRFS_TREE_RELOC_OBJECTID:
788 fprintf(stream, "TREE_RELOC");
790 case BTRFS_DATA_RELOC_TREE_OBJECTID:
791 fprintf(stream, "DATA_RELOC_TREE");
793 case BTRFS_EXTENT_CSUM_OBJECTID:
794 fprintf(stream, "EXTENT_CSUM");
796 case BTRFS_FREE_SPACE_OBJECTID:
797 fprintf(stream, "FREE_SPACE");
799 case BTRFS_FREE_INO_OBJECTID:
800 fprintf(stream, "FREE_INO");
802 case BTRFS_QUOTA_TREE_OBJECTID:
803 fprintf(stream, "QUOTA_TREE");
805 case BTRFS_UUID_TREE_OBJECTID:
806 fprintf(stream, "UUID_TREE");
808 case BTRFS_FREE_SPACE_TREE_OBJECTID:
809 fprintf(stream, "FREE_SPACE_TREE");
811 case BTRFS_MULTIPLE_OBJECTIDS:
812 fprintf(stream, "MULTIPLE");
815 fprintf(stream, "-1");
817 case BTRFS_FIRST_CHUNK_TREE_OBJECTID:
818 if (type == BTRFS_CHUNK_ITEM_KEY) {
819 fprintf(stream, "FIRST_CHUNK_TREE");
824 fprintf(stream, "%llu", (unsigned long long)objectid);
828 void btrfs_print_key(struct btrfs_disk_key *disk_key)
830 u64 objectid = btrfs_disk_key_objectid(disk_key);
831 u8 type = btrfs_disk_key_type(disk_key);
832 u64 offset = btrfs_disk_key_offset(disk_key);
835 print_objectid(stdout, objectid, type);
837 print_key_type(stdout, objectid, type);
839 case BTRFS_QGROUP_RELATION_KEY:
840 case BTRFS_QGROUP_INFO_KEY:
841 case BTRFS_QGROUP_LIMIT_KEY:
842 printf(" %llu/%llu)", btrfs_qgroup_level(offset),
843 btrfs_qgroup_subvid(offset));
845 case BTRFS_UUID_KEY_SUBVOL:
846 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
847 printf(" 0x%016llx)", (unsigned long long)offset);
850 if (offset == (u64)-1)
853 printf(" %llu)", (unsigned long long)offset);
858 static void print_uuid_item(struct extent_buffer *l, unsigned long offset,
861 if (item_size & (sizeof(u64) - 1)) {
862 printf("btrfs: uuid item with illegal size %lu!\n",
863 (unsigned long)item_size);
869 read_extent_buffer(l, &subvol_id, offset, sizeof(u64));
870 printf("\t\tsubvol_id %llu\n",
871 (unsigned long long)le64_to_cpu(subvol_id));
872 item_size -= sizeof(u64);
873 offset += sizeof(u64);
877 /* Btrfs inode flag stringification helper */
878 #define STRCAT_ONE_INODE_FLAG(flags, name, empty, dst) ({ \
879 if (flags & BTRFS_INODE_##name) { \
882 strcat(dst, #name); \
888 * Caller should ensure sizeof(*ret) >= 102: all charactors plus '|' of
889 * BTRFS_INODE_* flags
891 static void inode_flags_to_str(u64 flags, char *ret)
895 STRCAT_ONE_INODE_FLAG(flags, NODATASUM, empty, ret);
896 STRCAT_ONE_INODE_FLAG(flags, NODATACOW, empty, ret);
897 STRCAT_ONE_INODE_FLAG(flags, READONLY, empty, ret);
898 STRCAT_ONE_INODE_FLAG(flags, NOCOMPRESS, empty, ret);
899 STRCAT_ONE_INODE_FLAG(flags, PREALLOC, empty, ret);
900 STRCAT_ONE_INODE_FLAG(flags, SYNC, empty, ret);
901 STRCAT_ONE_INODE_FLAG(flags, IMMUTABLE, empty, ret);
902 STRCAT_ONE_INODE_FLAG(flags, APPEND, empty, ret);
903 STRCAT_ONE_INODE_FLAG(flags, NODUMP, empty, ret);
904 STRCAT_ONE_INODE_FLAG(flags, NOATIME, empty, ret);
905 STRCAT_ONE_INODE_FLAG(flags, DIRSYNC, empty, ret);
906 STRCAT_ONE_INODE_FLAG(flags, COMPRESS, empty, ret);
911 void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
915 struct btrfs_item *item;
916 struct btrfs_dir_item *di;
917 struct btrfs_inode_item *ii;
918 struct btrfs_file_extent_item *fi;
919 struct btrfs_block_group_item *bi;
920 struct btrfs_extent_data_ref *dref;
921 struct btrfs_shared_data_ref *sref;
922 struct btrfs_inode_ref *iref;
923 struct btrfs_inode_extref *iref2;
924 struct btrfs_dev_extent *dev_extent;
925 struct btrfs_disk_key disk_key;
926 struct btrfs_block_group_item bg_item;
927 struct btrfs_free_space_info *free_info;
928 struct btrfs_dir_log_item *dlog;
929 struct btrfs_qgroup_info_item *qg_info;
930 struct btrfs_qgroup_limit_item *qg_limit;
931 struct btrfs_qgroup_status_item *qg_status;
932 u32 nr = btrfs_header_nritems(l);
937 printf("leaf %llu items %d free space %d generation %llu owner %llu\n",
938 (unsigned long long)btrfs_header_bytenr(l), nr,
939 btrfs_leaf_free_space(root, l),
940 (unsigned long long)btrfs_header_generation(l),
941 (unsigned long long)btrfs_header_owner(l));
944 for (i = 0 ; i < nr ; i++) {
945 item = btrfs_item_nr(i);
946 btrfs_item_key(l, &disk_key, i);
947 objectid = btrfs_disk_key_objectid(&disk_key);
948 type = btrfs_disk_key_type(&disk_key);
949 printf("\titem %d ", i);
950 btrfs_print_key(&disk_key);
951 printf(" itemoff %d itemsize %d\n",
952 btrfs_item_offset(l, item),
953 btrfs_item_size(l, item));
955 if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID)
956 print_free_space_header(l, i);
959 case BTRFS_INODE_ITEM_KEY:
960 memset(flags_str, 0, sizeof(flags_str));
961 ii = btrfs_item_ptr(l, i, struct btrfs_inode_item);
962 inode_flags_to_str(btrfs_inode_flags(l, ii), flags_str);
963 printf("\t\tinode generation %llu transid %llu size %llu nbytes %llu\n"
964 "\t\tblock group %llu mode %o links %u uid %u gid %u\n"
965 "\t\trdev %llu flags 0x%llx(%s)\n",
966 (unsigned long long)btrfs_inode_generation(l, ii),
967 (unsigned long long)btrfs_inode_transid(l, ii),
968 (unsigned long long)btrfs_inode_size(l, ii),
969 (unsigned long long)btrfs_inode_nbytes(l, ii),
970 (unsigned long long)btrfs_inode_block_group(l,ii),
971 btrfs_inode_mode(l, ii),
972 btrfs_inode_nlink(l, ii),
973 btrfs_inode_uid(l, ii),
974 btrfs_inode_gid(l, ii),
975 (unsigned long long)btrfs_inode_rdev(l,ii),
976 (unsigned long long)btrfs_inode_flags(l,ii),
979 case BTRFS_INODE_REF_KEY:
980 iref = btrfs_item_ptr(l, i, struct btrfs_inode_ref);
981 print_inode_ref_item(l, item, iref);
983 case BTRFS_INODE_EXTREF_KEY:
984 iref2 = btrfs_item_ptr(l, i, struct btrfs_inode_extref);
985 print_inode_extref_item(l, item, iref2);
987 case BTRFS_DIR_ITEM_KEY:
988 case BTRFS_DIR_INDEX_KEY:
989 case BTRFS_XATTR_ITEM_KEY:
990 di = btrfs_item_ptr(l, i, struct btrfs_dir_item);
991 print_dir_item(l, item, di);
993 case BTRFS_DIR_LOG_INDEX_KEY:
994 case BTRFS_DIR_LOG_ITEM_KEY:
995 dlog = btrfs_item_ptr(l, i, struct btrfs_dir_log_item);
996 printf("\t\tdir log end %Lu\n",
997 (unsigned long long)btrfs_dir_log_end(l, dlog));
999 case BTRFS_ORPHAN_ITEM_KEY:
1000 printf("\t\torphan item\n");
1002 case BTRFS_ROOT_ITEM_KEY:
1005 case BTRFS_ROOT_REF_KEY:
1006 print_root_ref(l, i, "ref");
1008 case BTRFS_ROOT_BACKREF_KEY:
1009 print_root_ref(l, i, "backref");
1011 case BTRFS_EXTENT_ITEM_KEY:
1012 print_extent_item(l, i, 0);
1014 case BTRFS_METADATA_ITEM_KEY:
1015 print_extent_item(l, i, 1);
1017 case BTRFS_TREE_BLOCK_REF_KEY:
1018 printf("\t\ttree block backref\n");
1020 case BTRFS_SHARED_BLOCK_REF_KEY:
1021 printf("\t\tshared block backref\n");
1023 case BTRFS_EXTENT_DATA_REF_KEY:
1024 dref = btrfs_item_ptr(l, i, struct btrfs_extent_data_ref);
1025 printf("\t\textent data backref root %llu "
1026 "objectid %llu offset %llu count %u\n",
1027 (unsigned long long)btrfs_extent_data_ref_root(l, dref),
1028 (unsigned long long)btrfs_extent_data_ref_objectid(l, dref),
1029 (unsigned long long)btrfs_extent_data_ref_offset(l, dref),
1030 btrfs_extent_data_ref_count(l, dref));
1032 case BTRFS_SHARED_DATA_REF_KEY:
1033 sref = btrfs_item_ptr(l, i, struct btrfs_shared_data_ref);
1034 printf("\t\tshared data backref count %u\n",
1035 btrfs_shared_data_ref_count(l, sref));
1037 case BTRFS_EXTENT_REF_V0_KEY:
1038 #ifdef BTRFS_COMPAT_EXTENT_TREE_V0
1039 print_extent_ref_v0(l, i);
1044 case BTRFS_CSUM_ITEM_KEY:
1045 printf("\t\tcsum item\n");
1047 case BTRFS_EXTENT_CSUM_KEY:
1048 printf("\t\textent csum item\n");
1050 case BTRFS_EXTENT_DATA_KEY:
1051 fi = btrfs_item_ptr(l, i,
1052 struct btrfs_file_extent_item);
1053 print_file_extent_item(l, item, i, fi);
1055 case BTRFS_BLOCK_GROUP_ITEM_KEY:
1056 bi = btrfs_item_ptr(l, i,
1057 struct btrfs_block_group_item);
1058 read_extent_buffer(l, &bg_item, (unsigned long)bi,
1060 memset(flags_str, 0, sizeof(flags_str));
1061 bg_flags_to_str(btrfs_block_group_flags(&bg_item),
1063 printf("\t\tblock group used %llu chunk_objectid %llu flags %s\n",
1064 (unsigned long long)btrfs_block_group_used(&bg_item),
1065 (unsigned long long)btrfs_block_group_chunk_objectid(&bg_item),
1068 case BTRFS_FREE_SPACE_INFO_KEY:
1069 free_info = btrfs_item_ptr(l, i, struct btrfs_free_space_info);
1070 printf("\t\tfree space info extent count %u flags %u\n",
1071 (unsigned)btrfs_free_space_extent_count(l, free_info),
1072 (unsigned)btrfs_free_space_flags(l, free_info));
1074 case BTRFS_FREE_SPACE_EXTENT_KEY:
1075 printf("\t\tfree space extent\n");
1077 case BTRFS_FREE_SPACE_BITMAP_KEY:
1078 printf("\t\tfree space bitmap\n");
1080 case BTRFS_CHUNK_ITEM_KEY:
1081 print_chunk(l, btrfs_item_ptr(l, i, struct btrfs_chunk));
1083 case BTRFS_DEV_ITEM_KEY:
1084 print_dev_item(l, btrfs_item_ptr(l, i,
1085 struct btrfs_dev_item));
1087 case BTRFS_DEV_EXTENT_KEY:
1088 dev_extent = btrfs_item_ptr(l, i,
1089 struct btrfs_dev_extent);
1090 printf("\t\tdev extent chunk_tree %llu\n"
1091 "\t\tchunk objectid %llu chunk offset %llu "
1093 (unsigned long long)
1094 btrfs_dev_extent_chunk_tree(l, dev_extent),
1095 (unsigned long long)
1096 btrfs_dev_extent_chunk_objectid(l, dev_extent),
1097 (unsigned long long)
1098 btrfs_dev_extent_chunk_offset(l, dev_extent),
1099 (unsigned long long)
1100 btrfs_dev_extent_length(l, dev_extent));
1102 case BTRFS_QGROUP_STATUS_KEY:
1103 qg_status = btrfs_item_ptr(l, i,
1104 struct btrfs_qgroup_status_item);
1105 memset(flags_str, 0, sizeof(flags_str));
1106 qgroup_flags_to_str(btrfs_qgroup_status_flags(l, qg_status),
1108 printf("\t\tversion %llu generation %llu flags %s "
1110 (unsigned long long)
1111 btrfs_qgroup_status_version(l, qg_status),
1112 (unsigned long long)
1113 btrfs_qgroup_status_generation(l, qg_status),
1115 (unsigned long long)
1116 btrfs_qgroup_status_rescan(l, qg_status));
1118 case BTRFS_QGROUP_RELATION_KEY:
1120 case BTRFS_QGROUP_INFO_KEY:
1121 qg_info = btrfs_item_ptr(l, i,
1122 struct btrfs_qgroup_info_item);
1123 printf("\t\tgeneration %llu\n"
1124 "\t\treferenced %llu referenced compressed %llu\n"
1125 "\t\texclusive %llu exclusive compressed %llu\n",
1126 (unsigned long long)
1127 btrfs_qgroup_info_generation(l, qg_info),
1128 (unsigned long long)
1129 btrfs_qgroup_info_referenced(l, qg_info),
1130 (unsigned long long)
1131 btrfs_qgroup_info_referenced_compressed(l,
1133 (unsigned long long)
1134 btrfs_qgroup_info_exclusive(l, qg_info),
1135 (unsigned long long)
1136 btrfs_qgroup_info_exclusive_compressed(l,
1139 case BTRFS_QGROUP_LIMIT_KEY:
1140 qg_limit = btrfs_item_ptr(l, i,
1141 struct btrfs_qgroup_limit_item);
1142 printf("\t\tflags %llx\n"
1143 "\t\tmax referenced %lld max exclusive %lld\n"
1144 "\t\trsv referenced %lld rsv exclusive %lld\n",
1145 (unsigned long long)
1146 btrfs_qgroup_limit_flags(l, qg_limit),
1148 btrfs_qgroup_limit_max_referenced(l, qg_limit),
1150 btrfs_qgroup_limit_max_exclusive(l, qg_limit),
1152 btrfs_qgroup_limit_rsv_referenced(l, qg_limit),
1154 btrfs_qgroup_limit_rsv_exclusive(l, qg_limit));
1156 case BTRFS_UUID_KEY_SUBVOL:
1157 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
1158 print_uuid_item(l, btrfs_item_ptr_offset(l, i),
1159 btrfs_item_size_nr(l, i));
1161 case BTRFS_STRING_ITEM_KEY:
1162 /* dirty, but it's simple */
1163 str = l->data + btrfs_item_ptr_offset(l, i);
1164 printf("\t\titem data %.*s\n", btrfs_item_size(l, item), str);
1166 case BTRFS_DEV_STATS_KEY:
1167 printf("\t\tdevice stats\n");
1174 void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *eb, int follow)
1179 struct btrfs_disk_key disk_key;
1180 struct btrfs_key key;
1181 struct extent_buffer *next;
1185 nr = btrfs_header_nritems(eb);
1186 if (btrfs_is_leaf(eb)) {
1187 btrfs_print_leaf(root, eb);
1190 printf("node %llu level %d items %d free %u generation %llu owner %llu\n",
1191 (unsigned long long)eb->start,
1192 btrfs_header_level(eb), nr,
1193 (u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr,
1194 (unsigned long long)btrfs_header_generation(eb),
1195 (unsigned long long)btrfs_header_owner(eb));
1198 size = root->nodesize;
1199 for (i = 0; i < nr; i++) {
1200 u64 blocknr = btrfs_node_blockptr(eb, i);
1201 btrfs_node_key(eb, &disk_key, i);
1202 btrfs_disk_key_to_cpu(&key, &disk_key);
1204 btrfs_print_key(&disk_key);
1205 printf(" block %llu (%llu) gen %llu\n",
1206 (unsigned long long)blocknr,
1207 (unsigned long long)blocknr / size,
1208 (unsigned long long)btrfs_node_ptr_generation(eb, i));
1214 for (i = 0; i < nr; i++) {
1215 next = read_tree_block(root, btrfs_node_blockptr(eb, i), size,
1216 btrfs_node_ptr_generation(eb, i));
1217 if (!extent_buffer_uptodate(next)) {
1218 fprintf(stderr, "failed to read %llu in tree %llu\n",
1219 (unsigned long long)btrfs_node_blockptr(eb, i),
1220 (unsigned long long)btrfs_header_owner(eb));
1223 if (btrfs_is_leaf(next) && btrfs_header_level(eb) != 1) {
1225 "eb corrupted: item %d eb level %d next level %d, skipping the rest",
1226 i, btrfs_header_level(next),
1227 btrfs_header_level(eb));
1230 if (btrfs_header_level(next) != btrfs_header_level(eb) - 1) {
1232 "eb corrupted: item %d eb level %d next level %d, skipping the rest",
1233 i, btrfs_header_level(next),
1234 btrfs_header_level(eb));
1237 btrfs_print_tree(root, next, 1);
1238 free_extent_buffer(next);
1244 free_extent_buffer(next);