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);