1c1d7c514SDavid Sterba // SPDX-License-Identifier: GPL-2.0
26cbd5570SChris Mason /*
36cbd5570SChris Mason * Copyright (C) 2007 Oracle. All rights reserved.
46cbd5570SChris Mason */
56cbd5570SChris Mason
69b569ea0SJosef Bacik #include "messages.h"
75de08d7dSChris Mason #include "ctree.h"
85de08d7dSChris Mason #include "disk-io.h"
935b7e476SChris Mason #include "print-tree.h"
1007e81dc9SJosef Bacik #include "accessors.h"
1127137facSChristoph Hellwig #include "tree-checker.h"
125de08d7dSChris Mason
13457f1864SJosef Bacik struct root_name_map {
14457f1864SJosef Bacik u64 id;
15*866992f0SQu Wenruo const char *name;
16457f1864SJosef Bacik };
17457f1864SJosef Bacik
18457f1864SJosef Bacik static const struct root_name_map root_map[] = {
19457f1864SJosef Bacik { BTRFS_ROOT_TREE_OBJECTID, "ROOT_TREE" },
20457f1864SJosef Bacik { BTRFS_EXTENT_TREE_OBJECTID, "EXTENT_TREE" },
21457f1864SJosef Bacik { BTRFS_CHUNK_TREE_OBJECTID, "CHUNK_TREE" },
22457f1864SJosef Bacik { BTRFS_DEV_TREE_OBJECTID, "DEV_TREE" },
23457f1864SJosef Bacik { BTRFS_FS_TREE_OBJECTID, "FS_TREE" },
24457f1864SJosef Bacik { BTRFS_CSUM_TREE_OBJECTID, "CSUM_TREE" },
25457f1864SJosef Bacik { BTRFS_TREE_LOG_OBJECTID, "TREE_LOG" },
26457f1864SJosef Bacik { BTRFS_QUOTA_TREE_OBJECTID, "QUOTA_TREE" },
27457f1864SJosef Bacik { BTRFS_UUID_TREE_OBJECTID, "UUID_TREE" },
28457f1864SJosef Bacik { BTRFS_FREE_SPACE_TREE_OBJECTID, "FREE_SPACE_TREE" },
299c54e80dSJosef Bacik { BTRFS_BLOCK_GROUP_TREE_OBJECTID, "BLOCK_GROUP_TREE" },
30457f1864SJosef Bacik { BTRFS_DATA_RELOC_TREE_OBJECTID, "DATA_RELOC_TREE" },
31457f1864SJosef Bacik };
32457f1864SJosef Bacik
btrfs_root_name(const struct btrfs_key * key,char * buf)3371008734SJosef Bacik const char *btrfs_root_name(const struct btrfs_key *key, char *buf)
34457f1864SJosef Bacik {
35457f1864SJosef Bacik int i;
36457f1864SJosef Bacik
3771008734SJosef Bacik if (key->objectid == BTRFS_TREE_RELOC_OBJECTID) {
38457f1864SJosef Bacik snprintf(buf, BTRFS_ROOT_NAME_BUF_LEN,
3971008734SJosef Bacik "TREE_RELOC offset=%llu", key->offset);
40457f1864SJosef Bacik return buf;
41457f1864SJosef Bacik }
42457f1864SJosef Bacik
43457f1864SJosef Bacik for (i = 0; i < ARRAY_SIZE(root_map); i++) {
4471008734SJosef Bacik if (root_map[i].id == key->objectid)
45457f1864SJosef Bacik return root_map[i].name;
46457f1864SJosef Bacik }
47457f1864SJosef Bacik
4871008734SJosef Bacik snprintf(buf, BTRFS_ROOT_NAME_BUF_LEN, "%llu", key->objectid);
49457f1864SJosef Bacik return buf;
50457f1864SJosef Bacik }
51457f1864SJosef Bacik
print_chunk(const struct extent_buffer * eb,struct btrfs_chunk * chunk)526c75a589SQu Wenruo static void print_chunk(const struct extent_buffer *eb, struct btrfs_chunk *chunk)
530b86a832SChris Mason {
540b86a832SChris Mason int num_stripes = btrfs_chunk_num_stripes(eb, chunk);
550b86a832SChris Mason int i;
5662e85577SJeff Mahoney pr_info("\t\tchunk length %llu owner %llu type %llu num_stripes %d\n",
57c1c9ff7cSGeert Uytterhoeven btrfs_chunk_length(eb, chunk), btrfs_chunk_owner(eb, chunk),
58c1c9ff7cSGeert Uytterhoeven btrfs_chunk_type(eb, chunk), num_stripes);
590b86a832SChris Mason for (i = 0 ; i < num_stripes ; i++) {
6062e85577SJeff Mahoney pr_info("\t\t\tstripe %d devid %llu offset %llu\n", i,
61c1c9ff7cSGeert Uytterhoeven btrfs_stripe_devid_nr(eb, chunk, i),
62c1c9ff7cSGeert Uytterhoeven btrfs_stripe_offset_nr(eb, chunk, i));
630b86a832SChris Mason }
640b86a832SChris Mason }
print_dev_item(const struct extent_buffer * eb,struct btrfs_dev_item * dev_item)656c75a589SQu Wenruo static void print_dev_item(const struct extent_buffer *eb,
660b86a832SChris Mason struct btrfs_dev_item *dev_item)
670b86a832SChris Mason {
6862e85577SJeff Mahoney pr_info("\t\tdev item devid %llu total_bytes %llu bytes used %llu\n",
69c1c9ff7cSGeert Uytterhoeven btrfs_device_id(eb, dev_item),
70c1c9ff7cSGeert Uytterhoeven btrfs_device_total_bytes(eb, dev_item),
71c1c9ff7cSGeert Uytterhoeven btrfs_device_bytes_used(eb, dev_item));
720b86a832SChris Mason }
print_extent_data_ref(const struct extent_buffer * eb,struct btrfs_extent_data_ref * ref)736c75a589SQu Wenruo static void print_extent_data_ref(const struct extent_buffer *eb,
745d4f98a2SYan Zheng struct btrfs_extent_data_ref *ref)
755d4f98a2SYan Zheng {
7664ecdb64SLiu Bo pr_cont("extent data backref root %llu objectid %llu offset %llu count %u\n",
77c1c9ff7cSGeert Uytterhoeven btrfs_extent_data_ref_root(eb, ref),
78c1c9ff7cSGeert Uytterhoeven btrfs_extent_data_ref_objectid(eb, ref),
79c1c9ff7cSGeert Uytterhoeven btrfs_extent_data_ref_offset(eb, ref),
805d4f98a2SYan Zheng btrfs_extent_data_ref_count(eb, ref));
815d4f98a2SYan Zheng }
825d4f98a2SYan Zheng
print_extent_item(const struct extent_buffer * eb,int slot,int type)836c75a589SQu Wenruo static void print_extent_item(const struct extent_buffer *eb, int slot, int type)
845d4f98a2SYan Zheng {
855d4f98a2SYan Zheng struct btrfs_extent_item *ei;
865d4f98a2SYan Zheng struct btrfs_extent_inline_ref *iref;
875d4f98a2SYan Zheng struct btrfs_extent_data_ref *dref;
885d4f98a2SYan Zheng struct btrfs_shared_data_ref *sref;
895d4f98a2SYan Zheng struct btrfs_disk_key key;
905d4f98a2SYan Zheng unsigned long end;
915d4f98a2SYan Zheng unsigned long ptr;
923212fa14SJosef Bacik u32 item_size = btrfs_item_size(eb, slot);
935d4f98a2SYan Zheng u64 flags;
945d4f98a2SYan Zheng u64 offset;
9564ecdb64SLiu Bo int ref_index = 0;
965d4f98a2SYan Zheng
976d8ff4e4SDavid Sterba if (unlikely(item_size < sizeof(*ei))) {
98182741d2SQu Wenruo btrfs_err(eb->fs_info,
99182741d2SQu Wenruo "unexpected extent item size, has %u expect >= %zu",
100182741d2SQu Wenruo item_size, sizeof(*ei));
101182741d2SQu Wenruo btrfs_handle_fs_error(eb->fs_info, -EUCLEAN, NULL);
102ba3c2b19SNikolay Borisov }
1035d4f98a2SYan Zheng
1045d4f98a2SYan Zheng ei = btrfs_item_ptr(eb, slot, struct btrfs_extent_item);
1055d4f98a2SYan Zheng flags = btrfs_extent_flags(eb, ei);
1065d4f98a2SYan Zheng
10762e85577SJeff Mahoney pr_info("\t\textent refs %llu gen %llu flags %llu\n",
108c1c9ff7cSGeert Uytterhoeven btrfs_extent_refs(eb, ei), btrfs_extent_generation(eb, ei),
109c1c9ff7cSGeert Uytterhoeven flags);
1105d4f98a2SYan Zheng
111be2c765dSJosef Bacik if ((type == BTRFS_EXTENT_ITEM_KEY) &&
112be2c765dSJosef Bacik flags & BTRFS_EXTENT_FLAG_TREE_BLOCK) {
1135d4f98a2SYan Zheng struct btrfs_tree_block_info *info;
1145d4f98a2SYan Zheng info = (struct btrfs_tree_block_info *)(ei + 1);
1155d4f98a2SYan Zheng btrfs_tree_block_key(eb, info, &key);
11662e85577SJeff Mahoney pr_info("\t\ttree block key (%llu %u %llu) level %d\n",
117c1c9ff7cSGeert Uytterhoeven btrfs_disk_key_objectid(&key), key.type,
118c1c9ff7cSGeert Uytterhoeven btrfs_disk_key_offset(&key),
1195d4f98a2SYan Zheng btrfs_tree_block_level(eb, info));
1205d4f98a2SYan Zheng iref = (struct btrfs_extent_inline_ref *)(info + 1);
1215d4f98a2SYan Zheng } else {
1225d4f98a2SYan Zheng iref = (struct btrfs_extent_inline_ref *)(ei + 1);
1235d4f98a2SYan Zheng }
1245d4f98a2SYan Zheng
1255d4f98a2SYan Zheng ptr = (unsigned long)iref;
1265d4f98a2SYan Zheng end = (unsigned long)ei + item_size;
1275d4f98a2SYan Zheng while (ptr < end) {
1285d4f98a2SYan Zheng iref = (struct btrfs_extent_inline_ref *)ptr;
1295d4f98a2SYan Zheng type = btrfs_extent_inline_ref_type(eb, iref);
1305d4f98a2SYan Zheng offset = btrfs_extent_inline_ref_offset(eb, iref);
13164ecdb64SLiu Bo pr_info("\t\tref#%d: ", ref_index++);
1325d4f98a2SYan Zheng switch (type) {
1335d4f98a2SYan Zheng case BTRFS_TREE_BLOCK_REF_KEY:
13464ecdb64SLiu Bo pr_cont("tree block backref root %llu\n", offset);
1355d4f98a2SYan Zheng break;
1365d4f98a2SYan Zheng case BTRFS_SHARED_BLOCK_REF_KEY:
13764ecdb64SLiu Bo pr_cont("shared block backref parent %llu\n", offset);
13864ecdb64SLiu Bo /*
13964ecdb64SLiu Bo * offset is supposed to be a tree block which
14064ecdb64SLiu Bo * must be aligned to nodesize.
14164ecdb64SLiu Bo */
142ea57788eSQu Wenruo if (!IS_ALIGNED(offset, eb->fs_info->sectorsize))
143ea57788eSQu Wenruo pr_info(
144ea57788eSQu Wenruo "\t\t\t(parent %llu not aligned to sectorsize %u)\n",
145ea57788eSQu Wenruo offset, eb->fs_info->sectorsize);
1465d4f98a2SYan Zheng break;
1475d4f98a2SYan Zheng case BTRFS_EXTENT_DATA_REF_KEY:
1485d4f98a2SYan Zheng dref = (struct btrfs_extent_data_ref *)(&iref->offset);
1495d4f98a2SYan Zheng print_extent_data_ref(eb, dref);
1505d4f98a2SYan Zheng break;
1515d4f98a2SYan Zheng case BTRFS_SHARED_DATA_REF_KEY:
1525d4f98a2SYan Zheng sref = (struct btrfs_shared_data_ref *)(iref + 1);
15364ecdb64SLiu Bo pr_cont("shared data backref parent %llu count %u\n",
154c1c9ff7cSGeert Uytterhoeven offset, btrfs_shared_data_ref_count(eb, sref));
15564ecdb64SLiu Bo /*
156c87f318eSAnastasia Belova * Offset is supposed to be a tree block which must be
157c87f318eSAnastasia Belova * aligned to sectorsize.
15864ecdb64SLiu Bo */
159c87f318eSAnastasia Belova if (!IS_ALIGNED(offset, eb->fs_info->sectorsize))
160ea57788eSQu Wenruo pr_info(
161ea57788eSQu Wenruo "\t\t\t(parent %llu not aligned to sectorsize %u)\n",
162ea57788eSQu Wenruo offset, eb->fs_info->sectorsize);
1635d4f98a2SYan Zheng break;
1645d4f98a2SYan Zheng default:
16564ecdb64SLiu Bo pr_cont("(extent %llu has INVALID ref type %d)\n",
16607638ea5SLiu Bo eb->start, type);
16707638ea5SLiu Bo return;
1685d4f98a2SYan Zheng }
1695d4f98a2SYan Zheng ptr += btrfs_extent_inline_ref_size(type);
1705d4f98a2SYan Zheng }
1715d4f98a2SYan Zheng WARN_ON(ptr > end);
1725d4f98a2SYan Zheng }
1735d4f98a2SYan Zheng
print_uuid_item(const struct extent_buffer * l,unsigned long offset,u32 item_size)1746c75a589SQu Wenruo static void print_uuid_item(const struct extent_buffer *l, unsigned long offset,
1758f8ae8e2SStefan Behrens u32 item_size)
1768f8ae8e2SStefan Behrens {
1778f8ae8e2SStefan Behrens if (!IS_ALIGNED(item_size, sizeof(u64))) {
178efe120a0SFrank Holton pr_warn("BTRFS: uuid item with illegal size %lu!\n",
1798f8ae8e2SStefan Behrens (unsigned long)item_size);
1808f8ae8e2SStefan Behrens return;
1818f8ae8e2SStefan Behrens }
1828f8ae8e2SStefan Behrens while (item_size) {
1838f8ae8e2SStefan Behrens __le64 subvol_id;
1848f8ae8e2SStefan Behrens
1858f8ae8e2SStefan Behrens read_extent_buffer(l, &subvol_id, offset, sizeof(subvol_id));
186cc7c7714SDavid Sterba pr_info("\t\tsubvol_id %llu\n", le64_to_cpu(subvol_id));
1878f8ae8e2SStefan Behrens item_size -= sizeof(u64);
1888f8ae8e2SStefan Behrens offset += sizeof(u64);
1898f8ae8e2SStefan Behrens }
1908f8ae8e2SStefan Behrens }
1918f8ae8e2SStefan Behrens
192b5459936SQu Wenruo /*
193b5459936SQu Wenruo * Helper to output refs and locking status of extent buffer. Useful to debug
194b5459936SQu Wenruo * race condition related problems.
195b5459936SQu Wenruo */
print_eb_refs_lock(const struct extent_buffer * eb)1966c75a589SQu Wenruo static void print_eb_refs_lock(const struct extent_buffer *eb)
197b5459936SQu Wenruo {
198b5459936SQu Wenruo #ifdef CONFIG_BTRFS_DEBUG
199196d59abSJosef Bacik btrfs_info(eb->fs_info, "refs %u lock_owner %u current %u",
200196d59abSJosef Bacik atomic_read(&eb->refs), eb->lock_owner, current->pid);
201b5459936SQu Wenruo #endif
202b5459936SQu Wenruo }
203b5459936SQu Wenruo
btrfs_print_leaf(const struct extent_buffer * l)2046c75a589SQu Wenruo void btrfs_print_leaf(const struct extent_buffer *l)
2055de08d7dSChris Mason {
206a4f78750SDavid Sterba struct btrfs_fs_info *fs_info;
2075de08d7dSChris Mason int i;
208068132baSDaniel J Blueman u32 type, nr;
2093768f368SChris Mason struct btrfs_root_item *ri;
2101d4f6404SChris Mason struct btrfs_dir_item *di;
211293ffd5fSChris Mason struct btrfs_inode_item *ii;
2129078a3e1SChris Mason struct btrfs_block_group_item *bi;
2138c2383c3SChris Mason struct btrfs_file_extent_item *fi;
2145d4f98a2SYan Zheng struct btrfs_extent_data_ref *dref;
2155d4f98a2SYan Zheng struct btrfs_shared_data_ref *sref;
2165d4f98a2SYan Zheng struct btrfs_dev_extent *dev_extent;
2175f39d397SChris Mason struct btrfs_key key;
2185f39d397SChris Mason struct btrfs_key found_key;
2191d4f6404SChris Mason
220068132baSDaniel J Blueman if (!l)
221068132baSDaniel J Blueman return;
222068132baSDaniel J Blueman
223a4f78750SDavid Sterba fs_info = l->fs_info;
224068132baSDaniel J Blueman nr = btrfs_header_nritems(l);
225068132baSDaniel J Blueman
226c0872323SQu Wenruo btrfs_info(fs_info,
227c0872323SQu Wenruo "leaf %llu gen %llu total ptrs %d free space %d owner %llu",
228c0872323SQu Wenruo btrfs_header_bytenr(l), btrfs_header_generation(l), nr,
229e902baacSDavid Sterba btrfs_leaf_free_space(l), btrfs_header_owner(l));
230b5459936SQu Wenruo print_eb_refs_lock(l);
2315de08d7dSChris Mason for (i = 0 ; i < nr ; i++) {
2325f39d397SChris Mason btrfs_item_key_to_cpu(l, &key, i);
233962a298fSDavid Sterba type = key.type;
23462e85577SJeff Mahoney pr_info("\titem %d key (%llu %u %llu) itemoff %d itemsize %d\n",
235c1c9ff7cSGeert Uytterhoeven i, key.objectid, type, key.offset,
2363212fa14SJosef Bacik btrfs_item_offset(l, i), btrfs_item_size(l, i));
23762e2749eSChris Mason switch (type) {
23862e2749eSChris Mason case BTRFS_INODE_ITEM_KEY:
239293ffd5fSChris Mason ii = btrfs_item_ptr(l, i, struct btrfs_inode_item);
24062e85577SJeff Mahoney pr_info("\t\tinode generation %llu size %llu mode %o\n",
241d397712bSChris Mason btrfs_inode_generation(l, ii),
242c1c9ff7cSGeert Uytterhoeven btrfs_inode_size(l, ii),
2435f39d397SChris Mason btrfs_inode_mode(l, ii));
24462e2749eSChris Mason break;
24562e2749eSChris Mason case BTRFS_DIR_ITEM_KEY:
2461d4f6404SChris Mason di = btrfs_item_ptr(l, i, struct btrfs_dir_item);
2475f39d397SChris Mason btrfs_dir_item_key_to_cpu(l, di, &found_key);
24894a48aefSOmar Sandoval pr_info("\t\tdir oid %llu flags %u\n",
249c1c9ff7cSGeert Uytterhoeven found_key.objectid,
25094a48aefSOmar Sandoval btrfs_dir_flags(l, di));
25162e2749eSChris Mason break;
25262e2749eSChris Mason case BTRFS_ROOT_ITEM_KEY:
2534beb1b8bSChris Mason ri = btrfs_item_ptr(l, i, struct btrfs_root_item);
25462e85577SJeff Mahoney pr_info("\t\troot data bytenr %llu refs %u\n",
255d397712bSChris Mason btrfs_disk_root_bytenr(l, ri),
2565f39d397SChris Mason btrfs_disk_root_refs(l, ri));
25762e2749eSChris Mason break;
25862e2749eSChris Mason case BTRFS_EXTENT_ITEM_KEY:
259be2c765dSJosef Bacik case BTRFS_METADATA_ITEM_KEY:
260be2c765dSJosef Bacik print_extent_item(l, i, type);
26162e2749eSChris Mason break;
2625d4f98a2SYan Zheng case BTRFS_TREE_BLOCK_REF_KEY:
26362e85577SJeff Mahoney pr_info("\t\ttree block backref\n");
2647bb86316SChris Mason break;
2655d4f98a2SYan Zheng case BTRFS_SHARED_BLOCK_REF_KEY:
26662e85577SJeff Mahoney pr_info("\t\tshared block backref\n");
2675d4f98a2SYan Zheng break;
2685d4f98a2SYan Zheng case BTRFS_EXTENT_DATA_REF_KEY:
2695d4f98a2SYan Zheng dref = btrfs_item_ptr(l, i,
2705d4f98a2SYan Zheng struct btrfs_extent_data_ref);
2715d4f98a2SYan Zheng print_extent_data_ref(l, dref);
2725d4f98a2SYan Zheng break;
2735d4f98a2SYan Zheng case BTRFS_SHARED_DATA_REF_KEY:
2745d4f98a2SYan Zheng sref = btrfs_item_ptr(l, i,
2755d4f98a2SYan Zheng struct btrfs_shared_data_ref);
27662e85577SJeff Mahoney pr_info("\t\tshared data backref count %u\n",
2775d4f98a2SYan Zheng btrfs_shared_data_ref_count(l, sref));
2785d4f98a2SYan Zheng break;
2798c2383c3SChris Mason case BTRFS_EXTENT_DATA_KEY:
2808c2383c3SChris Mason fi = btrfs_item_ptr(l, i,
2818c2383c3SChris Mason struct btrfs_file_extent_item);
2825f39d397SChris Mason if (btrfs_file_extent_type(l, fi) ==
2838c2383c3SChris Mason BTRFS_FILE_EXTENT_INLINE) {
284e41ca589SQu Wenruo pr_info("\t\tinline extent data size %llu\n",
285e41ca589SQu Wenruo btrfs_file_extent_ram_bytes(l, fi));
2868c2383c3SChris Mason break;
2878c2383c3SChris Mason }
28862e85577SJeff Mahoney pr_info("\t\textent data disk bytenr %llu nr %llu\n",
289d397712bSChris Mason btrfs_file_extent_disk_bytenr(l, fi),
290d397712bSChris Mason btrfs_file_extent_disk_num_bytes(l, fi));
29162e85577SJeff Mahoney pr_info("\t\textent data offset %llu nr %llu ram %llu\n",
292d397712bSChris Mason btrfs_file_extent_offset(l, fi),
293d397712bSChris Mason btrfs_file_extent_num_bytes(l, fi),
294d397712bSChris Mason btrfs_file_extent_ram_bytes(l, fi));
2958c2383c3SChris Mason break;
2969078a3e1SChris Mason case BTRFS_BLOCK_GROUP_ITEM_KEY:
2979078a3e1SChris Mason bi = btrfs_item_ptr(l, i,
2989078a3e1SChris Mason struct btrfs_block_group_item);
299555ba411SLiu Bo pr_info(
300555ba411SLiu Bo "\t\tblock group used %llu chunk_objectid %llu flags %llu\n",
3010222dfddSDavid Sterba btrfs_block_group_used(l, bi),
3020222dfddSDavid Sterba btrfs_block_group_chunk_objectid(l, bi),
3030222dfddSDavid Sterba btrfs_block_group_flags(l, bi));
30462e2749eSChris Mason break;
3050b86a832SChris Mason case BTRFS_CHUNK_ITEM_KEY:
306d397712bSChris Mason print_chunk(l, btrfs_item_ptr(l, i,
307d397712bSChris Mason struct btrfs_chunk));
3080b86a832SChris Mason break;
3090b86a832SChris Mason case BTRFS_DEV_ITEM_KEY:
3100b86a832SChris Mason print_dev_item(l, btrfs_item_ptr(l, i,
3110b86a832SChris Mason struct btrfs_dev_item));
3120b86a832SChris Mason break;
3130b86a832SChris Mason case BTRFS_DEV_EXTENT_KEY:
3140b86a832SChris Mason dev_extent = btrfs_item_ptr(l, i,
3150b86a832SChris Mason struct btrfs_dev_extent);
31662e85577SJeff Mahoney pr_info("\t\tdev extent chunk_tree %llu\n\t\tchunk objectid %llu chunk offset %llu length %llu\n",
317e17cade2SChris Mason btrfs_dev_extent_chunk_tree(l, dev_extent),
318e17cade2SChris Mason btrfs_dev_extent_chunk_objectid(l, dev_extent),
319e17cade2SChris Mason btrfs_dev_extent_chunk_offset(l, dev_extent),
320e17cade2SChris Mason btrfs_dev_extent_length(l, dev_extent));
3210e636027SEric Sandeen break;
322585a3d0dSDavid Sterba case BTRFS_PERSISTENT_ITEM_KEY:
32362e85577SJeff Mahoney pr_info("\t\tpersistent item objectid %llu offset %llu\n",
324585a3d0dSDavid Sterba key.objectid, key.offset);
325585a3d0dSDavid Sterba switch (key.objectid) {
326585a3d0dSDavid Sterba case BTRFS_DEV_STATS_OBJECTID:
32762e85577SJeff Mahoney pr_info("\t\tdevice stats\n");
328733f4fbbSStefan Behrens break;
329585a3d0dSDavid Sterba default:
33062e85577SJeff Mahoney pr_info("\t\tunknown persistent item\n");
331585a3d0dSDavid Sterba }
332585a3d0dSDavid Sterba break;
3339f07e1d7SDavid Sterba case BTRFS_TEMPORARY_ITEM_KEY:
33462e85577SJeff Mahoney pr_info("\t\ttemporary item objectid %llu offset %llu\n",
3359f07e1d7SDavid Sterba key.objectid, key.offset);
3369f07e1d7SDavid Sterba switch (key.objectid) {
3379f07e1d7SDavid Sterba case BTRFS_BALANCE_OBJECTID:
33862e85577SJeff Mahoney pr_info("\t\tbalance status\n");
3399f07e1d7SDavid Sterba break;
3409f07e1d7SDavid Sterba default:
34162e85577SJeff Mahoney pr_info("\t\tunknown temporary item\n");
3429f07e1d7SDavid Sterba }
3439f07e1d7SDavid Sterba break;
344a2bff640SStefan Behrens case BTRFS_DEV_REPLACE_KEY:
34562e85577SJeff Mahoney pr_info("\t\tdev replace\n");
346a2bff640SStefan Behrens break;
3478f8ae8e2SStefan Behrens case BTRFS_UUID_KEY_SUBVOL:
3488f8ae8e2SStefan Behrens case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
3498f8ae8e2SStefan Behrens print_uuid_item(l, btrfs_item_ptr_offset(l, i),
3503212fa14SJosef Bacik btrfs_item_size(l, i));
3518f8ae8e2SStefan Behrens break;
3520ab575c5Szhengbin }
3535de08d7dSChris Mason }
3545de08d7dSChris Mason }
355e20d96d6SChris Mason
btrfs_print_tree(const struct extent_buffer * c,bool follow)3566c75a589SQu Wenruo void btrfs_print_tree(const struct extent_buffer *c, bool follow)
3575de08d7dSChris Mason {
358abe60ba4SDavid Sterba struct btrfs_fs_info *fs_info;
359e17cade2SChris Mason int i; u32 nr;
3605f39d397SChris Mason struct btrfs_key key;
361db94535dSChris Mason int level;
3625de08d7dSChris Mason
3635f39d397SChris Mason if (!c)
3645de08d7dSChris Mason return;
365abe60ba4SDavid Sterba fs_info = c->fs_info;
3665f39d397SChris Mason nr = btrfs_header_nritems(c);
367db94535dSChris Mason level = btrfs_header_level(c);
368db94535dSChris Mason if (level == 0) {
369a4f78750SDavid Sterba btrfs_print_leaf(c);
3705de08d7dSChris Mason return;
3715de08d7dSChris Mason }
3720b246afaSJeff Mahoney btrfs_info(fs_info,
373c0872323SQu Wenruo "node %llu level %d gen %llu total ptrs %d free spc %u owner %llu",
374c0872323SQu Wenruo btrfs_header_bytenr(c), level, btrfs_header_generation(c),
375c0872323SQu Wenruo nr, (u32)BTRFS_NODEPTRS_PER_BLOCK(fs_info) - nr,
376c0872323SQu Wenruo btrfs_header_owner(c));
377b5459936SQu Wenruo print_eb_refs_lock(c);
3785de08d7dSChris Mason for (i = 0; i < nr; i++) {
3795f39d397SChris Mason btrfs_node_key_to_cpu(c, &key, i);
380c0872323SQu Wenruo pr_info("\tkey %d (%llu %u %llu) block %llu gen %llu\n",
381c1c9ff7cSGeert Uytterhoeven i, key.objectid, key.type, key.offset,
382c0872323SQu Wenruo btrfs_node_blockptr(c, i),
383c0872323SQu Wenruo btrfs_node_ptr_generation(c, i));
3845de08d7dSChris Mason }
385c0872323SQu Wenruo if (!follow)
386c0872323SQu Wenruo return;
3875de08d7dSChris Mason for (i = 0; i < nr; i++) {
388789d6a3aSQu Wenruo struct btrfs_tree_parent_check check = {
389789d6a3aSQu Wenruo .level = level - 1,
390789d6a3aSQu Wenruo .transid = btrfs_node_ptr_generation(c, i),
391789d6a3aSQu Wenruo .owner_root = btrfs_header_owner(c),
392789d6a3aSQu Wenruo .has_first_key = true
393789d6a3aSQu Wenruo };
394581c1760SQu Wenruo struct extent_buffer *next;
395581c1760SQu Wenruo
396789d6a3aSQu Wenruo btrfs_node_key_to_cpu(c, &check.first_key, i);
397789d6a3aSQu Wenruo next = read_tree_block(fs_info, btrfs_node_blockptr(c, i), &check);
3984eb150d6SQu Wenruo if (IS_ERR(next))
399a42cbec9SLiu Bo continue;
4004eb150d6SQu Wenruo if (!extent_buffer_uptodate(next)) {
401a42cbec9SLiu Bo free_extent_buffer(next);
402a42cbec9SLiu Bo continue;
403a42cbec9SLiu Bo }
404a42cbec9SLiu Bo
4057518a238SChris Mason if (btrfs_is_leaf(next) &&
406c271b492SDaniel Cadete level != 1)
4075de08d7dSChris Mason BUG();
4085f39d397SChris Mason if (btrfs_header_level(next) !=
409c271b492SDaniel Cadete level - 1)
4105de08d7dSChris Mason BUG();
411c0872323SQu Wenruo btrfs_print_tree(next, follow);
4125f39d397SChris Mason free_extent_buffer(next);
4135de08d7dSChris Mason }
4145de08d7dSChris Mason }
415