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\tchunk length %llu owner %llu type %s num_stripes %d\n",
228 (unsigned long long)btrfs_chunk_length(eb, chunk),
229 (unsigned long long)btrfs_chunk_owner(eb, chunk),
230 chunk_flags_str, num_stripes);
231 for (i = 0 ; i < num_stripes ; i++) {
232 printf("\t\t\tstripe %d devid %llu offset %llu\n", i,
233 (unsigned long long)btrfs_stripe_devid_nr(eb, chunk, i),
234 (unsigned long long)btrfs_stripe_offset_nr(eb, chunk, i));
238 static void print_dev_item(struct extent_buffer *eb,
239 struct btrfs_dev_item *dev_item)
241 char disk_uuid_c[BTRFS_UUID_UNPARSED_SIZE];
242 u8 disk_uuid[BTRFS_UUID_SIZE];
244 read_extent_buffer(eb, disk_uuid,
245 (unsigned long)btrfs_device_uuid(dev_item),
247 uuid_unparse(disk_uuid, disk_uuid_c);
248 printf("\t\tdev item devid %llu "
249 "total_bytes %llu bytes used %Lu\n"
251 (unsigned long long)btrfs_device_id(eb, dev_item),
252 (unsigned long long)btrfs_device_total_bytes(eb, dev_item),
253 (unsigned long long)btrfs_device_bytes_used(eb, dev_item),
257 static void print_uuids(struct extent_buffer *eb)
259 char fs_uuid[BTRFS_UUID_UNPARSED_SIZE];
260 char chunk_uuid[BTRFS_UUID_UNPARSED_SIZE];
261 u8 disk_uuid[BTRFS_UUID_SIZE];
263 read_extent_buffer(eb, disk_uuid, btrfs_header_fsid(),
266 fs_uuid[BTRFS_UUID_UNPARSED_SIZE - 1] = '\0';
267 uuid_unparse(disk_uuid, fs_uuid);
269 read_extent_buffer(eb, disk_uuid,
270 btrfs_header_chunk_tree_uuid(eb),
273 chunk_uuid[BTRFS_UUID_UNPARSED_SIZE - 1] = '\0';
274 uuid_unparse(disk_uuid, chunk_uuid);
275 printf("fs uuid %s\nchunk uuid %s\n", fs_uuid, chunk_uuid);
278 static void print_file_extent_item(struct extent_buffer *eb,
279 struct btrfs_item *item,
281 struct btrfs_file_extent_item *fi)
283 int extent_type = btrfs_file_extent_type(eb, fi);
285 if (extent_type == BTRFS_FILE_EXTENT_INLINE) {
286 printf("\t\tinline extent data size %u "
287 "ram %u compress %d\n",
288 btrfs_file_extent_inline_item_len(eb, item),
289 btrfs_file_extent_inline_len(eb, slot, fi),
290 btrfs_file_extent_compression(eb, fi));
293 if (extent_type == BTRFS_FILE_EXTENT_PREALLOC) {
294 printf("\t\tprealloc data disk byte %llu nr %llu\n",
295 (unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
296 (unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
297 printf("\t\tprealloc data offset %llu nr %llu\n",
298 (unsigned long long)btrfs_file_extent_offset(eb, fi),
299 (unsigned long long)btrfs_file_extent_num_bytes(eb, fi));
302 printf("\t\textent data disk byte %llu nr %llu\n",
303 (unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
304 (unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
305 printf("\t\textent data offset %llu nr %llu ram %llu\n",
306 (unsigned long long)btrfs_file_extent_offset(eb, fi),
307 (unsigned long long)btrfs_file_extent_num_bytes(eb, fi),
308 (unsigned long long)btrfs_file_extent_ram_bytes(eb, fi));
309 printf("\t\textent compression %d\n",
310 btrfs_file_extent_compression(eb, fi));
313 /* Caller should ensure sizeof(*ret) >= 16("DATA|TREE_BLOCK") */
314 static void extent_flags_to_str(u64 flags, char *ret)
318 if (flags & BTRFS_EXTENT_FLAG_DATA) {
322 if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK) {
327 strcat(ret, "TREE_BLOCK");
329 if (flags & BTRFS_BLOCK_FLAG_FULL_BACKREF) {
331 strcat(ret, "FULL_BACKREF");
335 void print_extent_item(struct extent_buffer *eb, int slot, int metadata)
337 struct btrfs_extent_item *ei;
338 struct btrfs_extent_inline_ref *iref;
339 struct btrfs_extent_data_ref *dref;
340 struct btrfs_shared_data_ref *sref;
341 struct btrfs_disk_key key;
345 u32 item_size = btrfs_item_size_nr(eb, slot);
348 char flags_str[32] = {0};
350 if (item_size < sizeof(*ei)) {
351 #ifdef BTRFS_COMPAT_EXTENT_TREE_V0
352 struct btrfs_extent_item_v0 *ei0;
353 BUG_ON(item_size != sizeof(*ei0));
354 ei0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_item_v0);
355 printf("\t\textent refs %u\n",
356 btrfs_extent_refs_v0(eb, ei0));
363 ei = btrfs_item_ptr(eb, slot, struct btrfs_extent_item);
364 flags = btrfs_extent_flags(eb, ei);
365 extent_flags_to_str(flags, flags_str);
367 printf("\t\textent refs %llu gen %llu flags %s\n",
368 (unsigned long long)btrfs_extent_refs(eb, ei),
369 (unsigned long long)btrfs_extent_generation(eb, ei),
372 if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK && !metadata) {
373 struct btrfs_tree_block_info *info;
374 info = (struct btrfs_tree_block_info *)(ei + 1);
375 btrfs_tree_block_key(eb, info, &key);
376 printf("\t\ttree block ");
377 btrfs_print_key(&key);
378 printf(" level %d\n", btrfs_tree_block_level(eb, info));
379 iref = (struct btrfs_extent_inline_ref *)(info + 1);
380 } else if (metadata) {
381 struct btrfs_key tmp;
383 btrfs_item_key_to_cpu(eb, &tmp, slot);
384 printf("\t\ttree block skinny level %d\n", (int)tmp.offset);
385 iref = (struct btrfs_extent_inline_ref *)(ei + 1);
387 iref = (struct btrfs_extent_inline_ref *)(ei + 1);
390 ptr = (unsigned long)iref;
391 end = (unsigned long)ei + item_size;
393 iref = (struct btrfs_extent_inline_ref *)ptr;
394 type = btrfs_extent_inline_ref_type(eb, iref);
395 offset = btrfs_extent_inline_ref_offset(eb, iref);
397 case BTRFS_TREE_BLOCK_REF_KEY:
398 printf("\t\ttree block backref root %llu\n",
399 (unsigned long long)offset);
401 case BTRFS_SHARED_BLOCK_REF_KEY:
402 printf("\t\tshared block backref parent %llu\n",
403 (unsigned long long)offset);
405 case BTRFS_EXTENT_DATA_REF_KEY:
406 dref = (struct btrfs_extent_data_ref *)(&iref->offset);
407 printf("\t\textent data backref root %llu "
408 "objectid %llu offset %llu count %u\n",
409 (unsigned long long)btrfs_extent_data_ref_root(eb, dref),
410 (unsigned long long)btrfs_extent_data_ref_objectid(eb, dref),
411 (unsigned long long)btrfs_extent_data_ref_offset(eb, dref),
412 btrfs_extent_data_ref_count(eb, dref));
414 case BTRFS_SHARED_DATA_REF_KEY:
415 sref = (struct btrfs_shared_data_ref *)(iref + 1);
416 printf("\t\tshared data backref parent %llu count %u\n",
417 (unsigned long long)offset,
418 btrfs_shared_data_ref_count(eb, sref));
423 ptr += btrfs_extent_inline_ref_size(type);
428 #ifdef BTRFS_COMPAT_EXTENT_TREE_V0
429 static void print_extent_ref_v0(struct extent_buffer *eb, int slot)
431 struct btrfs_extent_ref_v0 *ref0;
433 ref0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_ref_v0);
434 printf("\t\textent back ref root %llu gen %llu "
435 "owner %llu num_refs %lu\n",
436 (unsigned long long)btrfs_ref_root_v0(eb, ref0),
437 (unsigned long long)btrfs_ref_generation_v0(eb, ref0),
438 (unsigned long long)btrfs_ref_objectid_v0(eb, ref0),
439 (unsigned long)btrfs_ref_count_v0(eb, ref0));
443 static void print_root_ref(struct extent_buffer *leaf, int slot, char *tag)
445 struct btrfs_root_ref *ref;
446 char namebuf[BTRFS_NAME_LEN];
449 ref = btrfs_item_ptr(leaf, slot, struct btrfs_root_ref);
450 namelen = btrfs_root_ref_name_len(leaf, ref);
451 read_extent_buffer(leaf, namebuf, (unsigned long)(ref + 1), namelen);
452 printf("\t\troot %s key dirid %llu sequence %llu name %.*s\n", tag,
453 (unsigned long long)btrfs_root_ref_dirid(leaf, ref),
454 (unsigned long long)btrfs_root_ref_sequence(leaf, ref),
458 static int count_bytes(void *buf, int len, char b)
462 for (i = 0; i < len; i++) {
463 if (((char*)buf)[i] == b)
469 static void print_root(struct extent_buffer *leaf, int slot)
471 struct btrfs_root_item *ri;
472 struct btrfs_root_item root_item;
474 char uuid_str[BTRFS_UUID_UNPARSED_SIZE];
476 ri = btrfs_item_ptr(leaf, slot, struct btrfs_root_item);
477 len = btrfs_item_size_nr(leaf, slot);
479 memset(&root_item, 0, sizeof(root_item));
480 read_extent_buffer(leaf, &root_item, (unsigned long)ri, len);
482 printf("\t\troot data bytenr %llu level %d dirid %llu refs %u gen %llu\n",
483 (unsigned long long)btrfs_root_bytenr(&root_item),
484 btrfs_root_level(&root_item),
485 (unsigned long long)btrfs_root_dirid(&root_item),
486 btrfs_root_refs(&root_item),
487 (unsigned long long)btrfs_root_generation(&root_item));
489 if (root_item.generation == root_item.generation_v2) {
490 uuid_unparse(root_item.uuid, uuid_str);
491 printf("\t\tuuid %s\n", uuid_str);
492 if (count_bytes(root_item.parent_uuid, BTRFS_UUID_SIZE, 0) != BTRFS_UUID_SIZE) {
493 uuid_unparse(root_item.parent_uuid, uuid_str);
494 printf("\t\tparent_uuid %s\n", uuid_str);
496 if (count_bytes(root_item.received_uuid, BTRFS_UUID_SIZE, 0) != BTRFS_UUID_SIZE) {
497 uuid_unparse(root_item.received_uuid, uuid_str);
498 printf("\t\treceived_uuid %s\n", uuid_str);
500 if (root_item.ctransid) {
501 printf("\t\tctransid %llu otransid %llu stransid %llu rtransid %llu\n",
502 btrfs_root_ctransid(&root_item),
503 btrfs_root_otransid(&root_item),
504 btrfs_root_stransid(&root_item),
505 btrfs_root_rtransid(&root_item));
508 if (btrfs_root_refs(&root_item) == 0) {
509 struct btrfs_key drop_key;
510 btrfs_disk_key_to_cpu(&drop_key,
511 &root_item.drop_progress);
513 btrfs_print_key(&root_item.drop_progress);
514 printf(" level %d\n", root_item.drop_level);
518 static void print_free_space_header(struct extent_buffer *leaf, int slot)
520 struct btrfs_free_space_header *header;
521 struct btrfs_disk_key location;
523 header = btrfs_item_ptr(leaf, slot, struct btrfs_free_space_header);
524 btrfs_free_space_key(leaf, header, &location);
525 printf("\t\tlocation ");
526 btrfs_print_key(&location);
528 printf("\t\tcache generation %llu entries %llu bitmaps %llu\n",
529 (unsigned long long)btrfs_free_space_generation(leaf, header),
530 (unsigned long long)btrfs_free_space_entries(leaf, header),
531 (unsigned long long)btrfs_free_space_bitmaps(leaf, header));
534 static void print_key_type(u64 objectid, u8 type)
536 if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID) {
542 case BTRFS_INODE_ITEM_KEY:
543 printf("INODE_ITEM");
545 case BTRFS_INODE_REF_KEY:
548 case BTRFS_INODE_EXTREF_KEY:
549 printf("INODE_EXTREF");
551 case BTRFS_DIR_ITEM_KEY:
554 case BTRFS_DIR_INDEX_KEY:
557 case BTRFS_DIR_LOG_ITEM_KEY:
558 printf("DIR_LOG_ITEM");
560 case BTRFS_DIR_LOG_INDEX_KEY:
561 printf("DIR_LOG_INDEX");
563 case BTRFS_XATTR_ITEM_KEY:
564 printf("XATTR_ITEM");
566 case BTRFS_ORPHAN_ITEM_KEY:
567 printf("ORPHAN_ITEM");
569 case BTRFS_ROOT_ITEM_KEY:
572 case BTRFS_ROOT_REF_KEY:
575 case BTRFS_ROOT_BACKREF_KEY:
576 printf("ROOT_BACKREF");
578 case BTRFS_EXTENT_ITEM_KEY:
579 printf("EXTENT_ITEM");
581 case BTRFS_METADATA_ITEM_KEY:
582 printf("METADATA_ITEM");
584 case BTRFS_TREE_BLOCK_REF_KEY:
585 printf("TREE_BLOCK_REF");
587 case BTRFS_SHARED_BLOCK_REF_KEY:
588 printf("SHARED_BLOCK_REF");
590 case BTRFS_EXTENT_DATA_REF_KEY:
591 printf("EXTENT_DATA_REF");
593 case BTRFS_SHARED_DATA_REF_KEY:
594 printf("SHARED_DATA_REF");
596 case BTRFS_EXTENT_REF_V0_KEY:
597 printf("EXTENT_REF_V0");
599 case BTRFS_CSUM_ITEM_KEY:
602 case BTRFS_EXTENT_CSUM_KEY:
603 printf("EXTENT_CSUM");
605 case BTRFS_EXTENT_DATA_KEY:
606 printf("EXTENT_DATA");
608 case BTRFS_BLOCK_GROUP_ITEM_KEY:
609 printf("BLOCK_GROUP_ITEM");
611 case BTRFS_CHUNK_ITEM_KEY:
612 printf("CHUNK_ITEM");
614 case BTRFS_DEV_ITEM_KEY:
617 case BTRFS_DEV_EXTENT_KEY:
618 printf("DEV_EXTENT");
620 case BTRFS_BALANCE_ITEM_KEY:
621 printf("BALANCE_ITEM");
623 case BTRFS_DEV_REPLACE_KEY:
624 printf("DEV_REPLACE_ITEM");
626 case BTRFS_STRING_ITEM_KEY:
627 printf("STRING_ITEM");
629 case BTRFS_QGROUP_STATUS_KEY:
630 printf("BTRFS_STATUS_KEY");
632 case BTRFS_QGROUP_RELATION_KEY:
633 printf("BTRFS_QGROUP_RELATION_KEY");
635 case BTRFS_QGROUP_INFO_KEY:
636 printf("BTRFS_QGROUP_INFO_KEY");
638 case BTRFS_QGROUP_LIMIT_KEY:
639 printf("BTRFS_QGROUP_LIMIT_KEY");
641 case BTRFS_DEV_STATS_KEY:
642 printf("DEV_STATS_ITEM");
644 case BTRFS_UUID_KEY_SUBVOL:
645 printf("BTRFS_UUID_KEY_SUBVOL");
647 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
648 printf("BTRFS_UUID_KEY_RECEIVED_SUBVOL");
651 printf("UNKNOWN.%d", type);
655 static void print_objectid(u64 objectid, u8 type)
658 case BTRFS_DEV_EXTENT_KEY:
659 printf("%llu", (unsigned long long)objectid); /* device id */
661 case BTRFS_QGROUP_RELATION_KEY:
662 printf("%llu/%llu", btrfs_qgroup_level(objectid),
663 btrfs_qgroup_subvid(objectid));
665 case BTRFS_UUID_KEY_SUBVOL:
666 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
667 printf("0x%016llx", (unsigned long long)objectid);
672 case BTRFS_ROOT_TREE_OBJECTID:
673 if (type == BTRFS_DEV_ITEM_KEY)
678 case BTRFS_EXTENT_TREE_OBJECTID:
679 printf("EXTENT_TREE");
681 case BTRFS_CHUNK_TREE_OBJECTID:
682 printf("CHUNK_TREE");
684 case BTRFS_DEV_TREE_OBJECTID:
687 case BTRFS_FS_TREE_OBJECTID:
690 case BTRFS_ROOT_TREE_DIR_OBJECTID:
691 printf("ROOT_TREE_DIR");
693 case BTRFS_CSUM_TREE_OBJECTID:
696 case BTRFS_BALANCE_OBJECTID:
699 case BTRFS_ORPHAN_OBJECTID:
702 case BTRFS_TREE_LOG_OBJECTID:
705 case BTRFS_TREE_LOG_FIXUP_OBJECTID:
708 case BTRFS_TREE_RELOC_OBJECTID:
709 printf("TREE_RELOC");
711 case BTRFS_DATA_RELOC_TREE_OBJECTID:
712 printf("DATA_RELOC_TREE");
714 case BTRFS_EXTENT_CSUM_OBJECTID:
715 printf("EXTENT_CSUM");
717 case BTRFS_FREE_SPACE_OBJECTID:
718 printf("FREE_SPACE");
720 case BTRFS_FREE_INO_OBJECTID:
723 case BTRFS_QUOTA_TREE_OBJECTID:
724 printf("QUOTA_TREE");
726 case BTRFS_UUID_TREE_OBJECTID:
729 case BTRFS_MULTIPLE_OBJECTIDS:
735 case BTRFS_FIRST_CHUNK_TREE_OBJECTID:
736 if (type == BTRFS_CHUNK_ITEM_KEY) {
737 printf("FIRST_CHUNK_TREE");
742 printf("%llu", (unsigned long long)objectid);
746 void btrfs_print_key(struct btrfs_disk_key *disk_key)
748 u64 objectid = btrfs_disk_key_objectid(disk_key);
749 u8 type = btrfs_disk_key_type(disk_key);
750 u64 offset = btrfs_disk_key_offset(disk_key);
753 print_objectid(objectid, type);
755 print_key_type(objectid, type);
757 case BTRFS_QGROUP_RELATION_KEY:
758 case BTRFS_QGROUP_INFO_KEY:
759 case BTRFS_QGROUP_LIMIT_KEY:
760 printf(" %llu/%llu)", btrfs_qgroup_level(offset),
761 btrfs_qgroup_subvid(offset));
763 case BTRFS_UUID_KEY_SUBVOL:
764 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
765 printf(" 0x%016llx)", (unsigned long long)offset);
768 if (offset == (u64)-1)
771 printf(" %llu)", (unsigned long long)offset);
776 static void print_uuid_item(struct extent_buffer *l, unsigned long offset,
779 if (item_size & (sizeof(u64) - 1)) {
780 printf("btrfs: uuid item with illegal size %lu!\n",
781 (unsigned long)item_size);
787 read_extent_buffer(l, &subvol_id, offset, sizeof(u64));
788 printf("\t\tsubvol_id %llu\n",
789 (unsigned long long)le64_to_cpu(subvol_id));
790 item_size -= sizeof(u64);
791 offset += sizeof(u64);
795 void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
799 struct btrfs_item *item;
800 struct btrfs_dir_item *di;
801 struct btrfs_inode_item *ii;
802 struct btrfs_file_extent_item *fi;
803 struct btrfs_block_group_item *bi;
804 struct btrfs_extent_data_ref *dref;
805 struct btrfs_shared_data_ref *sref;
806 struct btrfs_inode_ref *iref;
807 struct btrfs_inode_extref *iref2;
808 struct btrfs_dev_extent *dev_extent;
809 struct btrfs_disk_key disk_key;
810 struct btrfs_block_group_item bg_item;
811 struct btrfs_dir_log_item *dlog;
812 struct btrfs_qgroup_info_item *qg_info;
813 struct btrfs_qgroup_limit_item *qg_limit;
814 struct btrfs_qgroup_status_item *qg_status;
815 u32 nr = btrfs_header_nritems(l);
820 printf("leaf %llu items %d free space %d generation %llu owner %llu\n",
821 (unsigned long long)btrfs_header_bytenr(l), nr,
822 btrfs_leaf_free_space(root, l),
823 (unsigned long long)btrfs_header_generation(l),
824 (unsigned long long)btrfs_header_owner(l));
827 for (i = 0 ; i < nr ; i++) {
828 item = btrfs_item_nr(i);
829 btrfs_item_key(l, &disk_key, i);
830 objectid = btrfs_disk_key_objectid(&disk_key);
831 type = btrfs_disk_key_type(&disk_key);
832 printf("\titem %d ", i);
833 btrfs_print_key(&disk_key);
834 printf(" itemoff %d itemsize %d\n",
835 btrfs_item_offset(l, item),
836 btrfs_item_size(l, item));
838 if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID)
839 print_free_space_header(l, i);
842 case BTRFS_INODE_ITEM_KEY:
843 ii = btrfs_item_ptr(l, i, struct btrfs_inode_item);
844 printf("\t\tinode generation %llu transid %llu size %llu block group %llu mode %o links %u uid %u gid %u rdev %llu flags 0x%llx\n",
845 (unsigned long long)btrfs_inode_generation(l, ii),
846 (unsigned long long)btrfs_inode_transid(l, ii),
847 (unsigned long long)btrfs_inode_size(l, ii),
848 (unsigned long long)btrfs_inode_block_group(l,ii),
849 btrfs_inode_mode(l, ii),
850 btrfs_inode_nlink(l, ii),
851 btrfs_inode_uid(l, ii),
852 btrfs_inode_gid(l, ii),
853 (unsigned long long)btrfs_inode_rdev(l,ii),
854 (unsigned long long)btrfs_inode_flags(l,ii));
856 case BTRFS_INODE_REF_KEY:
857 iref = btrfs_item_ptr(l, i, struct btrfs_inode_ref);
858 print_inode_ref_item(l, item, iref);
860 case BTRFS_INODE_EXTREF_KEY:
861 iref2 = btrfs_item_ptr(l, i, struct btrfs_inode_extref);
862 print_inode_extref_item(l, item, iref2);
864 case BTRFS_DIR_ITEM_KEY:
865 case BTRFS_DIR_INDEX_KEY:
866 case BTRFS_XATTR_ITEM_KEY:
867 di = btrfs_item_ptr(l, i, struct btrfs_dir_item);
868 print_dir_item(l, item, di);
870 case BTRFS_DIR_LOG_INDEX_KEY:
871 case BTRFS_DIR_LOG_ITEM_KEY:
872 dlog = btrfs_item_ptr(l, i, struct btrfs_dir_log_item);
873 printf("\t\tdir log end %Lu\n",
874 (unsigned long long)btrfs_dir_log_end(l, dlog));
876 case BTRFS_ORPHAN_ITEM_KEY:
877 printf("\t\torphan item\n");
879 case BTRFS_ROOT_ITEM_KEY:
882 case BTRFS_ROOT_REF_KEY:
883 print_root_ref(l, i, "ref");
885 case BTRFS_ROOT_BACKREF_KEY:
886 print_root_ref(l, i, "backref");
888 case BTRFS_EXTENT_ITEM_KEY:
889 print_extent_item(l, i, 0);
891 case BTRFS_METADATA_ITEM_KEY:
892 print_extent_item(l, i, 1);
894 case BTRFS_TREE_BLOCK_REF_KEY:
895 printf("\t\ttree block backref\n");
897 case BTRFS_SHARED_BLOCK_REF_KEY:
898 printf("\t\tshared block backref\n");
900 case BTRFS_EXTENT_DATA_REF_KEY:
901 dref = btrfs_item_ptr(l, i, struct btrfs_extent_data_ref);
902 printf("\t\textent data backref root %llu "
903 "objectid %llu offset %llu count %u\n",
904 (unsigned long long)btrfs_extent_data_ref_root(l, dref),
905 (unsigned long long)btrfs_extent_data_ref_objectid(l, dref),
906 (unsigned long long)btrfs_extent_data_ref_offset(l, dref),
907 btrfs_extent_data_ref_count(l, dref));
909 case BTRFS_SHARED_DATA_REF_KEY:
910 sref = btrfs_item_ptr(l, i, struct btrfs_shared_data_ref);
911 printf("\t\tshared data backref count %u\n",
912 btrfs_shared_data_ref_count(l, sref));
914 case BTRFS_EXTENT_REF_V0_KEY:
915 #ifdef BTRFS_COMPAT_EXTENT_TREE_V0
916 print_extent_ref_v0(l, i);
921 case BTRFS_CSUM_ITEM_KEY:
922 printf("\t\tcsum item\n");
924 case BTRFS_EXTENT_CSUM_KEY:
925 printf("\t\textent csum item\n");
927 case BTRFS_EXTENT_DATA_KEY:
928 fi = btrfs_item_ptr(l, i,
929 struct btrfs_file_extent_item);
930 print_file_extent_item(l, item, i, fi);
932 case BTRFS_BLOCK_GROUP_ITEM_KEY:
933 bi = btrfs_item_ptr(l, i,
934 struct btrfs_block_group_item);
935 read_extent_buffer(l, &bg_item, (unsigned long)bi,
937 memset(flags_str, 0, sizeof(flags_str));
938 bg_flags_to_str(btrfs_block_group_flags(&bg_item),
940 printf("\t\tblock group used %llu chunk_objectid %llu flags %s\n",
941 (unsigned long long)btrfs_block_group_used(&bg_item),
942 (unsigned long long)btrfs_block_group_chunk_objectid(&bg_item),
945 case BTRFS_CHUNK_ITEM_KEY:
946 print_chunk(l, btrfs_item_ptr(l, i, struct btrfs_chunk));
948 case BTRFS_DEV_ITEM_KEY:
949 print_dev_item(l, btrfs_item_ptr(l, i,
950 struct btrfs_dev_item));
952 case BTRFS_DEV_EXTENT_KEY:
953 dev_extent = btrfs_item_ptr(l, i,
954 struct btrfs_dev_extent);
955 printf("\t\tdev extent chunk_tree %llu\n"
956 "\t\tchunk objectid %llu chunk offset %llu "
959 btrfs_dev_extent_chunk_tree(l, dev_extent),
961 btrfs_dev_extent_chunk_objectid(l, dev_extent),
963 btrfs_dev_extent_chunk_offset(l, dev_extent),
965 btrfs_dev_extent_length(l, dev_extent));
967 case BTRFS_QGROUP_STATUS_KEY:
968 qg_status = btrfs_item_ptr(l, i,
969 struct btrfs_qgroup_status_item);
970 memset(flags_str, 0, sizeof(flags_str));
971 qgroup_flags_to_str(btrfs_qgroup_status_flags(l, qg_status),
973 printf("\t\tversion %llu generation %llu flags %s "
976 btrfs_qgroup_status_version(l, qg_status),
978 btrfs_qgroup_status_generation(l, qg_status),
981 btrfs_qgroup_status_scan(l, qg_status));
983 case BTRFS_QGROUP_RELATION_KEY:
985 case BTRFS_QGROUP_INFO_KEY:
986 qg_info = btrfs_item_ptr(l, i,
987 struct btrfs_qgroup_info_item);
988 printf("\t\tgeneration %llu\n"
989 "\t\treferenced %llu referenced compressed %llu\n"
990 "\t\texclusive %llu exclusive compressed %llu\n",
992 btrfs_qgroup_info_generation(l, qg_info),
994 btrfs_qgroup_info_referenced(l, qg_info),
996 btrfs_qgroup_info_referenced_compressed(l,
999 btrfs_qgroup_info_exclusive(l, qg_info),
1000 (unsigned long long)
1001 btrfs_qgroup_info_exclusive_compressed(l,
1004 case BTRFS_QGROUP_LIMIT_KEY:
1005 qg_limit = btrfs_item_ptr(l, i,
1006 struct btrfs_qgroup_limit_item);
1007 printf("\t\tflags %llx\n"
1008 "\t\tmax referenced %lld max exclusive %lld\n"
1009 "\t\trsv referenced %lld rsv exclusive %lld\n",
1010 (unsigned long long)
1011 btrfs_qgroup_limit_flags(l, qg_limit),
1013 btrfs_qgroup_limit_max_referenced(l, qg_limit),
1015 btrfs_qgroup_limit_max_exclusive(l, qg_limit),
1017 btrfs_qgroup_limit_rsv_referenced(l, qg_limit),
1019 btrfs_qgroup_limit_rsv_exclusive(l, qg_limit));
1021 case BTRFS_UUID_KEY_SUBVOL:
1022 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
1023 print_uuid_item(l, btrfs_item_ptr_offset(l, i),
1024 btrfs_item_size_nr(l, i));
1026 case BTRFS_STRING_ITEM_KEY:
1027 /* dirty, but it's simple */
1028 str = l->data + btrfs_item_ptr_offset(l, i);
1029 printf("\t\titem data %.*s\n", btrfs_item_size(l, item), str);
1031 case BTRFS_DEV_STATS_KEY:
1032 printf("\t\tdevice stats\n");
1039 void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *eb, int follow)
1044 struct btrfs_disk_key disk_key;
1045 struct btrfs_key key;
1049 nr = btrfs_header_nritems(eb);
1050 if (btrfs_is_leaf(eb)) {
1051 btrfs_print_leaf(root, eb);
1054 printf("node %llu level %d items %d free %u generation %llu owner %llu\n",
1055 (unsigned long long)eb->start,
1056 btrfs_header_level(eb), nr,
1057 (u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr,
1058 (unsigned long long)btrfs_header_generation(eb),
1059 (unsigned long long)btrfs_header_owner(eb));
1062 size = btrfs_level_size(root, btrfs_header_level(eb) - 1);
1063 for (i = 0; i < nr; i++) {
1064 u64 blocknr = btrfs_node_blockptr(eb, i);
1065 btrfs_node_key(eb, &disk_key, i);
1066 btrfs_disk_key_to_cpu(&key, &disk_key);
1068 btrfs_print_key(&disk_key);
1069 printf(" block %llu (%llu) gen %llu\n",
1070 (unsigned long long)blocknr,
1071 (unsigned long long)blocknr / size,
1072 (unsigned long long)btrfs_node_ptr_generation(eb, i));
1078 for (i = 0; i < nr; i++) {
1079 struct extent_buffer *next = read_tree_block(root,
1080 btrfs_node_blockptr(eb, i),
1082 btrfs_node_ptr_generation(eb, i));
1083 if (!extent_buffer_uptodate(next)) {
1084 fprintf(stderr, "failed to read %llu in tree %llu\n",
1085 (unsigned long long)btrfs_node_blockptr(eb, i),
1086 (unsigned long long)btrfs_header_owner(eb));
1089 if (btrfs_is_leaf(next) &&
1090 btrfs_header_level(eb) != 1)
1092 if (btrfs_header_level(next) !=
1093 btrfs_header_level(eb) - 1)
1095 btrfs_print_tree(root, next, 1);
1096 free_extent_buffer(next);