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 /* Caller should ensure sizeof(*ret) >= 16("DATA|TREE_BLOCK") */
255 static void extent_flags_to_str(u64 flags, char *ret)
259 if (flags & BTRFS_EXTENT_FLAG_DATA) {
263 if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK) {
268 strcat(ret, "TREE_BLOCK");
272 void print_extent_item(struct extent_buffer *eb, int slot, int metadata)
274 struct btrfs_extent_item *ei;
275 struct btrfs_extent_inline_ref *iref;
276 struct btrfs_extent_data_ref *dref;
277 struct btrfs_shared_data_ref *sref;
278 struct btrfs_disk_key key;
282 u32 item_size = btrfs_item_size_nr(eb, slot);
285 char flags_str[32] = {0};
287 if (item_size < sizeof(*ei)) {
288 #ifdef BTRFS_COMPAT_EXTENT_TREE_V0
289 struct btrfs_extent_item_v0 *ei0;
290 BUG_ON(item_size != sizeof(*ei0));
291 ei0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_item_v0);
292 printf("\t\textent refs %u\n",
293 btrfs_extent_refs_v0(eb, ei0));
300 ei = btrfs_item_ptr(eb, slot, struct btrfs_extent_item);
301 flags = btrfs_extent_flags(eb, ei);
302 extent_flags_to_str(flags, flags_str);
304 printf("\t\textent refs %llu gen %llu flags %s\n",
305 (unsigned long long)btrfs_extent_refs(eb, ei),
306 (unsigned long long)btrfs_extent_generation(eb, ei),
309 if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK && !metadata) {
310 struct btrfs_tree_block_info *info;
311 info = (struct btrfs_tree_block_info *)(ei + 1);
312 btrfs_tree_block_key(eb, info, &key);
313 printf("\t\ttree block ");
314 btrfs_print_key(&key);
315 printf(" level %d\n", btrfs_tree_block_level(eb, info));
316 iref = (struct btrfs_extent_inline_ref *)(info + 1);
317 } else if (metadata) {
318 struct btrfs_key tmp;
320 btrfs_item_key_to_cpu(eb, &tmp, slot);
321 printf("\t\ttree block skinny level %d\n", (int)tmp.offset);
322 iref = (struct btrfs_extent_inline_ref *)(ei + 1);
324 iref = (struct btrfs_extent_inline_ref *)(ei + 1);
327 ptr = (unsigned long)iref;
328 end = (unsigned long)ei + item_size;
330 iref = (struct btrfs_extent_inline_ref *)ptr;
331 type = btrfs_extent_inline_ref_type(eb, iref);
332 offset = btrfs_extent_inline_ref_offset(eb, iref);
334 case BTRFS_TREE_BLOCK_REF_KEY:
335 printf("\t\ttree block backref root %llu\n",
336 (unsigned long long)offset);
338 case BTRFS_SHARED_BLOCK_REF_KEY:
339 printf("\t\tshared block backref parent %llu\n",
340 (unsigned long long)offset);
342 case BTRFS_EXTENT_DATA_REF_KEY:
343 dref = (struct btrfs_extent_data_ref *)(&iref->offset);
344 printf("\t\textent data backref root %llu "
345 "objectid %llu offset %llu count %u\n",
346 (unsigned long long)btrfs_extent_data_ref_root(eb, dref),
347 (unsigned long long)btrfs_extent_data_ref_objectid(eb, dref),
348 (unsigned long long)btrfs_extent_data_ref_offset(eb, dref),
349 btrfs_extent_data_ref_count(eb, dref));
351 case BTRFS_SHARED_DATA_REF_KEY:
352 sref = (struct btrfs_shared_data_ref *)(iref + 1);
353 printf("\t\tshared data backref parent %llu count %u\n",
354 (unsigned long long)offset,
355 btrfs_shared_data_ref_count(eb, sref));
360 ptr += btrfs_extent_inline_ref_size(type);
365 #ifdef BTRFS_COMPAT_EXTENT_TREE_V0
366 static void print_extent_ref_v0(struct extent_buffer *eb, int slot)
368 struct btrfs_extent_ref_v0 *ref0;
370 ref0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_ref_v0);
371 printf("\t\textent back ref root %llu gen %llu "
372 "owner %llu num_refs %lu\n",
373 (unsigned long long)btrfs_ref_root_v0(eb, ref0),
374 (unsigned long long)btrfs_ref_generation_v0(eb, ref0),
375 (unsigned long long)btrfs_ref_objectid_v0(eb, ref0),
376 (unsigned long)btrfs_ref_count_v0(eb, ref0));
380 static void print_root_ref(struct extent_buffer *leaf, int slot, char *tag)
382 struct btrfs_root_ref *ref;
383 char namebuf[BTRFS_NAME_LEN];
386 ref = btrfs_item_ptr(leaf, slot, struct btrfs_root_ref);
387 namelen = btrfs_root_ref_name_len(leaf, ref);
388 read_extent_buffer(leaf, namebuf, (unsigned long)(ref + 1), namelen);
389 printf("\t\troot %s key dirid %llu sequence %llu name %.*s\n", tag,
390 (unsigned long long)btrfs_root_ref_dirid(leaf, ref),
391 (unsigned long long)btrfs_root_ref_sequence(leaf, ref),
395 static int count_bytes(void *buf, int len, char b)
399 for (i = 0; i < len; i++) {
400 if (((char*)buf)[i] == b)
406 static void print_root(struct extent_buffer *leaf, int slot)
408 struct btrfs_root_item *ri;
409 struct btrfs_root_item root_item;
411 char uuid_str[BTRFS_UUID_UNPARSED_SIZE];
413 ri = btrfs_item_ptr(leaf, slot, struct btrfs_root_item);
414 len = btrfs_item_size_nr(leaf, slot);
416 memset(&root_item, 0, sizeof(root_item));
417 read_extent_buffer(leaf, &root_item, (unsigned long)ri, len);
419 printf("\t\troot data bytenr %llu level %d dirid %llu refs %u gen %llu\n",
420 (unsigned long long)btrfs_root_bytenr(&root_item),
421 btrfs_root_level(&root_item),
422 (unsigned long long)btrfs_root_dirid(&root_item),
423 btrfs_root_refs(&root_item),
424 (unsigned long long)btrfs_root_generation(&root_item));
426 if (root_item.generation == root_item.generation_v2) {
427 uuid_unparse(root_item.uuid, uuid_str);
428 printf("\t\tuuid %s\n", uuid_str);
429 if (count_bytes(root_item.parent_uuid, BTRFS_UUID_SIZE, 0) != BTRFS_UUID_SIZE) {
430 uuid_unparse(root_item.parent_uuid, uuid_str);
431 printf("\t\tparent_uuid %s\n", uuid_str);
433 if (count_bytes(root_item.received_uuid, BTRFS_UUID_SIZE, 0) != BTRFS_UUID_SIZE) {
434 uuid_unparse(root_item.received_uuid, uuid_str);
435 printf("\t\treceived_uuid %s\n", uuid_str);
437 if (root_item.ctransid) {
438 printf("\t\tctransid %llu otransid %llu stransid %llu rtransid %llu\n",
439 btrfs_root_ctransid(&root_item),
440 btrfs_root_otransid(&root_item),
441 btrfs_root_stransid(&root_item),
442 btrfs_root_rtransid(&root_item));
445 if (btrfs_root_refs(&root_item) == 0) {
446 struct btrfs_key drop_key;
447 btrfs_disk_key_to_cpu(&drop_key,
448 &root_item.drop_progress);
450 btrfs_print_key(&root_item.drop_progress);
451 printf(" level %d\n", root_item.drop_level);
455 static void print_free_space_header(struct extent_buffer *leaf, int slot)
457 struct btrfs_free_space_header *header;
458 struct btrfs_disk_key location;
460 header = btrfs_item_ptr(leaf, slot, struct btrfs_free_space_header);
461 btrfs_free_space_key(leaf, header, &location);
462 printf("\t\tlocation ");
463 btrfs_print_key(&location);
465 printf("\t\tcache generation %llu entries %llu bitmaps %llu\n",
466 (unsigned long long)btrfs_free_space_generation(leaf, header),
467 (unsigned long long)btrfs_free_space_entries(leaf, header),
468 (unsigned long long)btrfs_free_space_bitmaps(leaf, header));
471 static void print_key_type(u64 objectid, u8 type)
473 if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID) {
479 case BTRFS_INODE_ITEM_KEY:
480 printf("INODE_ITEM");
482 case BTRFS_INODE_REF_KEY:
485 case BTRFS_INODE_EXTREF_KEY:
486 printf("INODE_EXTREF");
488 case BTRFS_DIR_ITEM_KEY:
491 case BTRFS_DIR_INDEX_KEY:
494 case BTRFS_DIR_LOG_ITEM_KEY:
495 printf("DIR_LOG_ITEM");
497 case BTRFS_DIR_LOG_INDEX_KEY:
498 printf("DIR_LOG_INDEX");
500 case BTRFS_XATTR_ITEM_KEY:
501 printf("XATTR_ITEM");
503 case BTRFS_ORPHAN_ITEM_KEY:
504 printf("ORPHAN_ITEM");
506 case BTRFS_ROOT_ITEM_KEY:
509 case BTRFS_ROOT_REF_KEY:
512 case BTRFS_ROOT_BACKREF_KEY:
513 printf("ROOT_BACKREF");
515 case BTRFS_EXTENT_ITEM_KEY:
516 printf("EXTENT_ITEM");
518 case BTRFS_METADATA_ITEM_KEY:
519 printf("METADATA_ITEM");
521 case BTRFS_TREE_BLOCK_REF_KEY:
522 printf("TREE_BLOCK_REF");
524 case BTRFS_SHARED_BLOCK_REF_KEY:
525 printf("SHARED_BLOCK_REF");
527 case BTRFS_EXTENT_DATA_REF_KEY:
528 printf("EXTENT_DATA_REF");
530 case BTRFS_SHARED_DATA_REF_KEY:
531 printf("SHARED_DATA_REF");
533 case BTRFS_EXTENT_REF_V0_KEY:
534 printf("EXTENT_REF_V0");
536 case BTRFS_CSUM_ITEM_KEY:
539 case BTRFS_EXTENT_CSUM_KEY:
540 printf("EXTENT_CSUM");
542 case BTRFS_EXTENT_DATA_KEY:
543 printf("EXTENT_DATA");
545 case BTRFS_BLOCK_GROUP_ITEM_KEY:
546 printf("BLOCK_GROUP_ITEM");
548 case BTRFS_CHUNK_ITEM_KEY:
549 printf("CHUNK_ITEM");
551 case BTRFS_DEV_ITEM_KEY:
554 case BTRFS_DEV_EXTENT_KEY:
555 printf("DEV_EXTENT");
557 case BTRFS_BALANCE_ITEM_KEY:
558 printf("BALANCE_ITEM");
560 case BTRFS_DEV_REPLACE_KEY:
561 printf("DEV_REPLACE_ITEM");
563 case BTRFS_STRING_ITEM_KEY:
564 printf("STRING_ITEM");
566 case BTRFS_QGROUP_STATUS_KEY:
567 printf("BTRFS_STATUS_KEY");
569 case BTRFS_QGROUP_RELATION_KEY:
570 printf("BTRFS_QGROUP_RELATION_KEY");
572 case BTRFS_QGROUP_INFO_KEY:
573 printf("BTRFS_QGROUP_INFO_KEY");
575 case BTRFS_QGROUP_LIMIT_KEY:
576 printf("BTRFS_QGROUP_LIMIT_KEY");
578 case BTRFS_DEV_STATS_KEY:
579 printf("DEV_STATS_ITEM");
581 case BTRFS_UUID_KEY_SUBVOL:
582 printf("BTRFS_UUID_KEY_SUBVOL");
584 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
585 printf("BTRFS_UUID_KEY_RECEIVED_SUBVOL");
588 printf("UNKNOWN.%d", type);
592 static void print_objectid(u64 objectid, u8 type)
595 case BTRFS_DEV_EXTENT_KEY:
596 printf("%llu", (unsigned long long)objectid); /* device id */
598 case BTRFS_QGROUP_RELATION_KEY:
599 printf("%llu/%llu", objectid >> 48,
600 objectid & ((1ll << 48) - 1));
602 case BTRFS_UUID_KEY_SUBVOL:
603 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
604 printf("0x%016llx", (unsigned long long)objectid);
609 case BTRFS_ROOT_TREE_OBJECTID:
610 if (type == BTRFS_DEV_ITEM_KEY)
615 case BTRFS_EXTENT_TREE_OBJECTID:
616 printf("EXTENT_TREE");
618 case BTRFS_CHUNK_TREE_OBJECTID:
619 printf("CHUNK_TREE");
621 case BTRFS_DEV_TREE_OBJECTID:
624 case BTRFS_FS_TREE_OBJECTID:
627 case BTRFS_ROOT_TREE_DIR_OBJECTID:
628 printf("ROOT_TREE_DIR");
630 case BTRFS_CSUM_TREE_OBJECTID:
633 case BTRFS_BALANCE_OBJECTID:
636 case BTRFS_ORPHAN_OBJECTID:
639 case BTRFS_TREE_LOG_OBJECTID:
642 case BTRFS_TREE_LOG_FIXUP_OBJECTID:
645 case BTRFS_TREE_RELOC_OBJECTID:
646 printf("TREE_RELOC");
648 case BTRFS_DATA_RELOC_TREE_OBJECTID:
649 printf("DATA_RELOC_TREE");
651 case BTRFS_EXTENT_CSUM_OBJECTID:
652 printf("EXTENT_CSUM");
654 case BTRFS_FREE_SPACE_OBJECTID:
655 printf("FREE_SPACE");
657 case BTRFS_FREE_INO_OBJECTID:
660 case BTRFS_QUOTA_TREE_OBJECTID:
661 printf("QUOTA_TREE");
663 case BTRFS_UUID_TREE_OBJECTID:
666 case BTRFS_MULTIPLE_OBJECTIDS:
672 case BTRFS_FIRST_CHUNK_TREE_OBJECTID:
673 if (type == BTRFS_CHUNK_ITEM_KEY) {
674 printf("FIRST_CHUNK_TREE");
679 printf("%llu", (unsigned long long)objectid);
683 void btrfs_print_key(struct btrfs_disk_key *disk_key)
685 u64 objectid = btrfs_disk_key_objectid(disk_key);
686 u8 type = btrfs_disk_key_type(disk_key);
687 u64 offset = btrfs_disk_key_offset(disk_key);
690 print_objectid(objectid, type);
692 print_key_type(objectid, type);
694 case BTRFS_QGROUP_RELATION_KEY:
695 case BTRFS_QGROUP_INFO_KEY:
696 case BTRFS_QGROUP_LIMIT_KEY:
697 printf(" %llu/%llu)", (unsigned long long)(offset >> 48),
698 (unsigned long long)(offset & ((1ll << 48) - 1)));
700 case BTRFS_UUID_KEY_SUBVOL:
701 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
702 printf(" 0x%016llx)", (unsigned long long)offset);
705 if (offset == (u64)-1)
708 printf(" %llu)", (unsigned long long)offset);
713 static void print_uuid_item(struct extent_buffer *l, unsigned long offset,
716 if (item_size & (sizeof(u64) - 1)) {
717 printf("btrfs: uuid item with illegal size %lu!\n",
718 (unsigned long)item_size);
724 read_extent_buffer(l, &subvol_id, offset, sizeof(u64));
725 printf("\t\tsubvol_id %llu\n",
726 (unsigned long long)le64_to_cpu(subvol_id));
727 item_size -= sizeof(u64);
728 offset += sizeof(u64);
732 void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
736 struct btrfs_item *item;
737 struct btrfs_dir_item *di;
738 struct btrfs_inode_item *ii;
739 struct btrfs_file_extent_item *fi;
740 struct btrfs_block_group_item *bi;
741 struct btrfs_extent_data_ref *dref;
742 struct btrfs_shared_data_ref *sref;
743 struct btrfs_inode_ref *iref;
744 struct btrfs_inode_extref *iref2;
745 struct btrfs_dev_extent *dev_extent;
746 struct btrfs_disk_key disk_key;
747 struct btrfs_block_group_item bg_item;
748 struct btrfs_dir_log_item *dlog;
749 struct btrfs_qgroup_info_item *qg_info;
750 struct btrfs_qgroup_limit_item *qg_limit;
751 struct btrfs_qgroup_status_item *qg_status;
752 u32 nr = btrfs_header_nritems(l);
756 printf("leaf %llu items %d free space %d generation %llu owner %llu\n",
757 (unsigned long long)btrfs_header_bytenr(l), nr,
758 btrfs_leaf_free_space(root, l),
759 (unsigned long long)btrfs_header_generation(l),
760 (unsigned long long)btrfs_header_owner(l));
763 for (i = 0 ; i < nr ; i++) {
764 item = btrfs_item_nr(i);
765 btrfs_item_key(l, &disk_key, i);
766 objectid = btrfs_disk_key_objectid(&disk_key);
767 type = btrfs_disk_key_type(&disk_key);
768 printf("\titem %d ", i);
769 btrfs_print_key(&disk_key);
770 printf(" itemoff %d itemsize %d\n",
771 btrfs_item_offset(l, item),
772 btrfs_item_size(l, item));
774 if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID)
775 print_free_space_header(l, i);
778 case BTRFS_INODE_ITEM_KEY:
779 ii = btrfs_item_ptr(l, i, struct btrfs_inode_item);
780 printf("\t\tinode generation %llu transid %llu size %llu block group %llu mode %o links %u\n",
781 (unsigned long long)btrfs_inode_generation(l, ii),
782 (unsigned long long)btrfs_inode_transid(l, ii),
783 (unsigned long long)btrfs_inode_size(l, ii),
784 (unsigned long long)btrfs_inode_block_group(l,ii),
785 btrfs_inode_mode(l, ii),
786 btrfs_inode_nlink(l, ii));
788 case BTRFS_INODE_REF_KEY:
789 iref = btrfs_item_ptr(l, i, struct btrfs_inode_ref);
790 print_inode_ref_item(l, item, iref);
792 case BTRFS_INODE_EXTREF_KEY:
793 iref2 = btrfs_item_ptr(l, i, struct btrfs_inode_extref);
794 print_inode_extref_item(l, item, iref2);
796 case BTRFS_DIR_ITEM_KEY:
797 case BTRFS_DIR_INDEX_KEY:
798 case BTRFS_XATTR_ITEM_KEY:
799 di = btrfs_item_ptr(l, i, struct btrfs_dir_item);
800 print_dir_item(l, item, di);
802 case BTRFS_DIR_LOG_INDEX_KEY:
803 case BTRFS_DIR_LOG_ITEM_KEY:
804 dlog = btrfs_item_ptr(l, i, struct btrfs_dir_log_item);
805 printf("\t\tdir log end %Lu\n",
806 (unsigned long long)btrfs_dir_log_end(l, dlog));
808 case BTRFS_ORPHAN_ITEM_KEY:
809 printf("\t\torphan item\n");
811 case BTRFS_ROOT_ITEM_KEY:
814 case BTRFS_ROOT_REF_KEY:
815 print_root_ref(l, i, "ref");
817 case BTRFS_ROOT_BACKREF_KEY:
818 print_root_ref(l, i, "backref");
820 case BTRFS_EXTENT_ITEM_KEY:
821 print_extent_item(l, i, 0);
823 case BTRFS_METADATA_ITEM_KEY:
824 print_extent_item(l, i, 1);
826 case BTRFS_TREE_BLOCK_REF_KEY:
827 printf("\t\ttree block backref\n");
829 case BTRFS_SHARED_BLOCK_REF_KEY:
830 printf("\t\tshared block backref\n");
832 case BTRFS_EXTENT_DATA_REF_KEY:
833 dref = btrfs_item_ptr(l, i, struct btrfs_extent_data_ref);
834 printf("\t\textent data backref root %llu "
835 "objectid %llu offset %llu count %u\n",
836 (unsigned long long)btrfs_extent_data_ref_root(l, dref),
837 (unsigned long long)btrfs_extent_data_ref_objectid(l, dref),
838 (unsigned long long)btrfs_extent_data_ref_offset(l, dref),
839 btrfs_extent_data_ref_count(l, dref));
841 case BTRFS_SHARED_DATA_REF_KEY:
842 sref = btrfs_item_ptr(l, i, struct btrfs_shared_data_ref);
843 printf("\t\tshared data backref count %u\n",
844 btrfs_shared_data_ref_count(l, sref));
846 case BTRFS_EXTENT_REF_V0_KEY:
847 #ifdef BTRFS_COMPAT_EXTENT_TREE_V0
848 print_extent_ref_v0(l, i);
853 case BTRFS_CSUM_ITEM_KEY:
854 printf("\t\tcsum item\n");
856 case BTRFS_EXTENT_CSUM_KEY:
857 printf("\t\textent csum item\n");
859 case BTRFS_EXTENT_DATA_KEY:
860 fi = btrfs_item_ptr(l, i,
861 struct btrfs_file_extent_item);
862 print_file_extent_item(l, item, i, fi);
864 case BTRFS_BLOCK_GROUP_ITEM_KEY:
865 bi = btrfs_item_ptr(l, i,
866 struct btrfs_block_group_item);
867 read_extent_buffer(l, &bg_item, (unsigned long)bi,
869 printf("\t\tblock group used %llu chunk_objectid %llu flags %llu\n",
870 (unsigned long long)btrfs_block_group_used(&bg_item),
871 (unsigned long long)btrfs_block_group_chunk_objectid(&bg_item),
872 (unsigned long long)btrfs_block_group_flags(&bg_item));
874 case BTRFS_CHUNK_ITEM_KEY:
875 print_chunk(l, btrfs_item_ptr(l, i, struct btrfs_chunk));
877 case BTRFS_DEV_ITEM_KEY:
878 print_dev_item(l, btrfs_item_ptr(l, i,
879 struct btrfs_dev_item));
881 case BTRFS_DEV_EXTENT_KEY:
882 dev_extent = btrfs_item_ptr(l, i,
883 struct btrfs_dev_extent);
884 printf("\t\tdev extent chunk_tree %llu\n"
885 "\t\tchunk objectid %llu chunk offset %llu "
888 btrfs_dev_extent_chunk_tree(l, dev_extent),
890 btrfs_dev_extent_chunk_objectid(l, dev_extent),
892 btrfs_dev_extent_chunk_offset(l, dev_extent),
894 btrfs_dev_extent_length(l, dev_extent));
896 case BTRFS_QGROUP_STATUS_KEY:
897 qg_status = btrfs_item_ptr(l, i,
898 struct btrfs_qgroup_status_item);
899 printf("\t\tversion %llu generation %llu flags %#llx "
902 btrfs_qgroup_status_version(l, qg_status),
904 btrfs_qgroup_status_generation(l, qg_status),
906 btrfs_qgroup_status_flags(l, qg_status),
908 btrfs_qgroup_status_scan(l, qg_status));
910 case BTRFS_QGROUP_RELATION_KEY:
912 case BTRFS_QGROUP_INFO_KEY:
913 qg_info = btrfs_item_ptr(l, i,
914 struct btrfs_qgroup_info_item);
915 printf("\t\tgeneration %llu\n"
916 "\t\treferenced %llu referenced compressed %llu\n"
917 "\t\texclusive %llu exclusive compressed %llu\n",
919 btrfs_qgroup_info_generation(l, qg_info),
921 btrfs_qgroup_info_referenced(l, qg_info),
923 btrfs_qgroup_info_referenced_compressed(l,
926 btrfs_qgroup_info_exclusive(l, qg_info),
928 btrfs_qgroup_info_exclusive_compressed(l,
931 case BTRFS_QGROUP_LIMIT_KEY:
932 qg_limit = btrfs_item_ptr(l, i,
933 struct btrfs_qgroup_limit_item);
934 printf("\t\tflags %llx\n"
935 "\t\tmax referenced %lld max exclusive %lld\n"
936 "\t\trsv referenced %lld rsv exclusive %lld\n",
938 btrfs_qgroup_limit_flags(l, qg_limit),
940 btrfs_qgroup_limit_max_referenced(l, qg_limit),
942 btrfs_qgroup_limit_max_exclusive(l, qg_limit),
944 btrfs_qgroup_limit_rsv_referenced(l, qg_limit),
946 btrfs_qgroup_limit_rsv_exclusive(l, qg_limit));
948 case BTRFS_UUID_KEY_SUBVOL:
949 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
950 print_uuid_item(l, btrfs_item_ptr_offset(l, i),
951 btrfs_item_size_nr(l, i));
953 case BTRFS_STRING_ITEM_KEY:
954 /* dirty, but it's simple */
955 str = l->data + btrfs_item_ptr_offset(l, i);
956 printf("\t\titem data %.*s\n", btrfs_item_size(l, item), str);
958 case BTRFS_DEV_STATS_KEY:
959 printf("\t\tdevice stats\n");
966 void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *eb, int follow)
971 struct btrfs_disk_key disk_key;
972 struct btrfs_key key;
976 nr = btrfs_header_nritems(eb);
977 if (btrfs_is_leaf(eb)) {
978 btrfs_print_leaf(root, eb);
981 printf("node %llu level %d items %d free %u generation %llu owner %llu\n",
982 (unsigned long long)eb->start,
983 btrfs_header_level(eb), nr,
984 (u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr,
985 (unsigned long long)btrfs_header_generation(eb),
986 (unsigned long long)btrfs_header_owner(eb));
989 size = btrfs_level_size(root, btrfs_header_level(eb) - 1);
990 for (i = 0; i < nr; i++) {
991 u64 blocknr = btrfs_node_blockptr(eb, i);
992 btrfs_node_key(eb, &disk_key, i);
993 btrfs_disk_key_to_cpu(&key, &disk_key);
995 btrfs_print_key(&disk_key);
996 printf(" block %llu (%llu) gen %llu\n",
997 (unsigned long long)blocknr,
998 (unsigned long long)blocknr / size,
999 (unsigned long long)btrfs_node_ptr_generation(eb, i));
1005 for (i = 0; i < nr; i++) {
1006 struct extent_buffer *next = read_tree_block(root,
1007 btrfs_node_blockptr(eb, i),
1009 btrfs_node_ptr_generation(eb, i));
1011 fprintf(stderr, "failed to read %llu in tree %llu\n",
1012 (unsigned long long)btrfs_node_blockptr(eb, i),
1013 (unsigned long long)btrfs_header_owner(eb));
1016 if (btrfs_is_leaf(next) &&
1017 btrfs_header_level(eb) != 1)
1019 if (btrfs_header_level(next) !=
1020 btrfs_header_level(eb) - 1)
1022 btrfs_print_tree(root, next, 1);
1023 free_extent_buffer(next);