Loading...
1/*
2 * Copyright (C) 2007 Oracle. All rights reserved.
3 *
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.
7 *
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.
12 *
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.
17 */
18
19#include "ctree.h"
20#include "disk-io.h"
21#include "print-tree.h"
22
23static void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk)
24{
25 int num_stripes = btrfs_chunk_num_stripes(eb, chunk);
26 int i;
27 pr_info("\t\tchunk length %llu owner %llu type %llu num_stripes %d\n",
28 btrfs_chunk_length(eb, chunk), btrfs_chunk_owner(eb, chunk),
29 btrfs_chunk_type(eb, chunk), num_stripes);
30 for (i = 0 ; i < num_stripes ; i++) {
31 pr_info("\t\t\tstripe %d devid %llu offset %llu\n", i,
32 btrfs_stripe_devid_nr(eb, chunk, i),
33 btrfs_stripe_offset_nr(eb, chunk, i));
34 }
35}
36static void print_dev_item(struct extent_buffer *eb,
37 struct btrfs_dev_item *dev_item)
38{
39 pr_info("\t\tdev item devid %llu total_bytes %llu bytes used %llu\n",
40 btrfs_device_id(eb, dev_item),
41 btrfs_device_total_bytes(eb, dev_item),
42 btrfs_device_bytes_used(eb, dev_item));
43}
44static void print_extent_data_ref(struct extent_buffer *eb,
45 struct btrfs_extent_data_ref *ref)
46{
47 pr_info("\t\textent data backref root %llu objectid %llu offset %llu count %u\n",
48 btrfs_extent_data_ref_root(eb, ref),
49 btrfs_extent_data_ref_objectid(eb, ref),
50 btrfs_extent_data_ref_offset(eb, ref),
51 btrfs_extent_data_ref_count(eb, ref));
52}
53
54static void print_extent_item(struct extent_buffer *eb, int slot, int type)
55{
56 struct btrfs_extent_item *ei;
57 struct btrfs_extent_inline_ref *iref;
58 struct btrfs_extent_data_ref *dref;
59 struct btrfs_shared_data_ref *sref;
60 struct btrfs_disk_key key;
61 unsigned long end;
62 unsigned long ptr;
63 u32 item_size = btrfs_item_size_nr(eb, slot);
64 u64 flags;
65 u64 offset;
66
67 if (item_size < sizeof(*ei)) {
68#ifdef BTRFS_COMPAT_EXTENT_TREE_V0
69 struct btrfs_extent_item_v0 *ei0;
70 BUG_ON(item_size != sizeof(*ei0));
71 ei0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_item_v0);
72 pr_info("\t\textent refs %u\n",
73 btrfs_extent_refs_v0(eb, ei0));
74 return;
75#else
76 BUG();
77#endif
78 }
79
80 ei = btrfs_item_ptr(eb, slot, struct btrfs_extent_item);
81 flags = btrfs_extent_flags(eb, ei);
82
83 pr_info("\t\textent refs %llu gen %llu flags %llu\n",
84 btrfs_extent_refs(eb, ei), btrfs_extent_generation(eb, ei),
85 flags);
86
87 if ((type == BTRFS_EXTENT_ITEM_KEY) &&
88 flags & BTRFS_EXTENT_FLAG_TREE_BLOCK) {
89 struct btrfs_tree_block_info *info;
90 info = (struct btrfs_tree_block_info *)(ei + 1);
91 btrfs_tree_block_key(eb, info, &key);
92 pr_info("\t\ttree block key (%llu %u %llu) level %d\n",
93 btrfs_disk_key_objectid(&key), key.type,
94 btrfs_disk_key_offset(&key),
95 btrfs_tree_block_level(eb, info));
96 iref = (struct btrfs_extent_inline_ref *)(info + 1);
97 } else {
98 iref = (struct btrfs_extent_inline_ref *)(ei + 1);
99 }
100
101 ptr = (unsigned long)iref;
102 end = (unsigned long)ei + item_size;
103 while (ptr < end) {
104 iref = (struct btrfs_extent_inline_ref *)ptr;
105 type = btrfs_extent_inline_ref_type(eb, iref);
106 offset = btrfs_extent_inline_ref_offset(eb, iref);
107 switch (type) {
108 case BTRFS_TREE_BLOCK_REF_KEY:
109 pr_info("\t\ttree block backref root %llu\n", offset);
110 break;
111 case BTRFS_SHARED_BLOCK_REF_KEY:
112 pr_info("\t\tshared block backref parent %llu\n", offset);
113 break;
114 case BTRFS_EXTENT_DATA_REF_KEY:
115 dref = (struct btrfs_extent_data_ref *)(&iref->offset);
116 print_extent_data_ref(eb, dref);
117 break;
118 case BTRFS_SHARED_DATA_REF_KEY:
119 sref = (struct btrfs_shared_data_ref *)(iref + 1);
120 pr_info("\t\tshared data backref parent %llu count %u\n",
121 offset, btrfs_shared_data_ref_count(eb, sref));
122 break;
123 default:
124 BUG();
125 }
126 ptr += btrfs_extent_inline_ref_size(type);
127 }
128 WARN_ON(ptr > end);
129}
130
131#ifdef BTRFS_COMPAT_EXTENT_TREE_V0
132static void print_extent_ref_v0(struct extent_buffer *eb, int slot)
133{
134 struct btrfs_extent_ref_v0 *ref0;
135
136 ref0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_ref_v0);
137 printk("\t\textent back ref root %llu gen %llu owner %llu num_refs %lu\n",
138 btrfs_ref_root_v0(eb, ref0),
139 btrfs_ref_generation_v0(eb, ref0),
140 btrfs_ref_objectid_v0(eb, ref0),
141 (unsigned long)btrfs_ref_count_v0(eb, ref0));
142}
143#endif
144
145static void print_uuid_item(struct extent_buffer *l, unsigned long offset,
146 u32 item_size)
147{
148 if (!IS_ALIGNED(item_size, sizeof(u64))) {
149 pr_warn("BTRFS: uuid item with illegal size %lu!\n",
150 (unsigned long)item_size);
151 return;
152 }
153 while (item_size) {
154 __le64 subvol_id;
155
156 read_extent_buffer(l, &subvol_id, offset, sizeof(subvol_id));
157 pr_info("\t\tsubvol_id %llu\n",
158 (unsigned long long)le64_to_cpu(subvol_id));
159 item_size -= sizeof(u64);
160 offset += sizeof(u64);
161 }
162}
163
164void btrfs_print_leaf(struct btrfs_fs_info *fs_info, struct extent_buffer *l)
165{
166 int i;
167 u32 type, nr;
168 struct btrfs_item *item;
169 struct btrfs_root_item *ri;
170 struct btrfs_dir_item *di;
171 struct btrfs_inode_item *ii;
172 struct btrfs_block_group_item *bi;
173 struct btrfs_file_extent_item *fi;
174 struct btrfs_extent_data_ref *dref;
175 struct btrfs_shared_data_ref *sref;
176 struct btrfs_dev_extent *dev_extent;
177 struct btrfs_key key;
178 struct btrfs_key found_key;
179
180 if (!l)
181 return;
182
183 nr = btrfs_header_nritems(l);
184
185 btrfs_info(fs_info, "leaf %llu total ptrs %d free space %d",
186 btrfs_header_bytenr(l), nr,
187 btrfs_leaf_free_space(fs_info, l));
188 for (i = 0 ; i < nr ; i++) {
189 item = btrfs_item_nr(i);
190 btrfs_item_key_to_cpu(l, &key, i);
191 type = key.type;
192 pr_info("\titem %d key (%llu %u %llu) itemoff %d itemsize %d\n",
193 i, key.objectid, type, key.offset,
194 btrfs_item_offset(l, item), btrfs_item_size(l, item));
195 switch (type) {
196 case BTRFS_INODE_ITEM_KEY:
197 ii = btrfs_item_ptr(l, i, struct btrfs_inode_item);
198 pr_info("\t\tinode generation %llu size %llu mode %o\n",
199 btrfs_inode_generation(l, ii),
200 btrfs_inode_size(l, ii),
201 btrfs_inode_mode(l, ii));
202 break;
203 case BTRFS_DIR_ITEM_KEY:
204 di = btrfs_item_ptr(l, i, struct btrfs_dir_item);
205 btrfs_dir_item_key_to_cpu(l, di, &found_key);
206 pr_info("\t\tdir oid %llu type %u\n",
207 found_key.objectid,
208 btrfs_dir_type(l, di));
209 break;
210 case BTRFS_ROOT_ITEM_KEY:
211 ri = btrfs_item_ptr(l, i, struct btrfs_root_item);
212 pr_info("\t\troot data bytenr %llu refs %u\n",
213 btrfs_disk_root_bytenr(l, ri),
214 btrfs_disk_root_refs(l, ri));
215 break;
216 case BTRFS_EXTENT_ITEM_KEY:
217 case BTRFS_METADATA_ITEM_KEY:
218 print_extent_item(l, i, type);
219 break;
220 case BTRFS_TREE_BLOCK_REF_KEY:
221 pr_info("\t\ttree block backref\n");
222 break;
223 case BTRFS_SHARED_BLOCK_REF_KEY:
224 pr_info("\t\tshared block backref\n");
225 break;
226 case BTRFS_EXTENT_DATA_REF_KEY:
227 dref = btrfs_item_ptr(l, i,
228 struct btrfs_extent_data_ref);
229 print_extent_data_ref(l, dref);
230 break;
231 case BTRFS_SHARED_DATA_REF_KEY:
232 sref = btrfs_item_ptr(l, i,
233 struct btrfs_shared_data_ref);
234 pr_info("\t\tshared data backref count %u\n",
235 btrfs_shared_data_ref_count(l, sref));
236 break;
237 case BTRFS_EXTENT_DATA_KEY:
238 fi = btrfs_item_ptr(l, i,
239 struct btrfs_file_extent_item);
240 if (btrfs_file_extent_type(l, fi) ==
241 BTRFS_FILE_EXTENT_INLINE) {
242 pr_info("\t\tinline extent data size %u\n",
243 btrfs_file_extent_inline_len(l, i, fi));
244 break;
245 }
246 pr_info("\t\textent data disk bytenr %llu nr %llu\n",
247 btrfs_file_extent_disk_bytenr(l, fi),
248 btrfs_file_extent_disk_num_bytes(l, fi));
249 pr_info("\t\textent data offset %llu nr %llu ram %llu\n",
250 btrfs_file_extent_offset(l, fi),
251 btrfs_file_extent_num_bytes(l, fi),
252 btrfs_file_extent_ram_bytes(l, fi));
253 break;
254 case BTRFS_EXTENT_REF_V0_KEY:
255#ifdef BTRFS_COMPAT_EXTENT_TREE_V0
256 print_extent_ref_v0(l, i);
257#else
258 BUG();
259#endif
260 break;
261 case BTRFS_BLOCK_GROUP_ITEM_KEY:
262 bi = btrfs_item_ptr(l, i,
263 struct btrfs_block_group_item);
264 pr_info("\t\tblock group used %llu\n",
265 btrfs_disk_block_group_used(l, bi));
266 break;
267 case BTRFS_CHUNK_ITEM_KEY:
268 print_chunk(l, btrfs_item_ptr(l, i,
269 struct btrfs_chunk));
270 break;
271 case BTRFS_DEV_ITEM_KEY:
272 print_dev_item(l, btrfs_item_ptr(l, i,
273 struct btrfs_dev_item));
274 break;
275 case BTRFS_DEV_EXTENT_KEY:
276 dev_extent = btrfs_item_ptr(l, i,
277 struct btrfs_dev_extent);
278 pr_info("\t\tdev extent chunk_tree %llu\n\t\tchunk objectid %llu chunk offset %llu length %llu\n",
279 btrfs_dev_extent_chunk_tree(l, dev_extent),
280 btrfs_dev_extent_chunk_objectid(l, dev_extent),
281 btrfs_dev_extent_chunk_offset(l, dev_extent),
282 btrfs_dev_extent_length(l, dev_extent));
283 break;
284 case BTRFS_PERSISTENT_ITEM_KEY:
285 pr_info("\t\tpersistent item objectid %llu offset %llu\n",
286 key.objectid, key.offset);
287 switch (key.objectid) {
288 case BTRFS_DEV_STATS_OBJECTID:
289 pr_info("\t\tdevice stats\n");
290 break;
291 default:
292 pr_info("\t\tunknown persistent item\n");
293 }
294 break;
295 case BTRFS_TEMPORARY_ITEM_KEY:
296 pr_info("\t\ttemporary item objectid %llu offset %llu\n",
297 key.objectid, key.offset);
298 switch (key.objectid) {
299 case BTRFS_BALANCE_OBJECTID:
300 pr_info("\t\tbalance status\n");
301 break;
302 default:
303 pr_info("\t\tunknown temporary item\n");
304 }
305 break;
306 case BTRFS_DEV_REPLACE_KEY:
307 pr_info("\t\tdev replace\n");
308 break;
309 case BTRFS_UUID_KEY_SUBVOL:
310 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
311 print_uuid_item(l, btrfs_item_ptr_offset(l, i),
312 btrfs_item_size_nr(l, i));
313 break;
314 };
315 }
316}
317
318void btrfs_print_tree(struct btrfs_fs_info *fs_info, struct extent_buffer *c)
319{
320 int i; u32 nr;
321 struct btrfs_key key;
322 int level;
323
324 if (!c)
325 return;
326 nr = btrfs_header_nritems(c);
327 level = btrfs_header_level(c);
328 if (level == 0) {
329 btrfs_print_leaf(fs_info, c);
330 return;
331 }
332 btrfs_info(fs_info,
333 "node %llu level %d total ptrs %d free spc %u",
334 btrfs_header_bytenr(c), level, nr,
335 (u32)BTRFS_NODEPTRS_PER_BLOCK(fs_info) - nr);
336 for (i = 0; i < nr; i++) {
337 btrfs_node_key_to_cpu(c, &key, i);
338 pr_info("\tkey %d (%llu %u %llu) block %llu\n",
339 i, key.objectid, key.type, key.offset,
340 btrfs_node_blockptr(c, i));
341 }
342 for (i = 0; i < nr; i++) {
343 struct extent_buffer *next = read_tree_block(fs_info,
344 btrfs_node_blockptr(c, i),
345 btrfs_node_ptr_generation(c, i));
346 if (IS_ERR(next)) {
347 continue;
348 } else if (!extent_buffer_uptodate(next)) {
349 free_extent_buffer(next);
350 continue;
351 }
352
353 if (btrfs_is_leaf(next) &&
354 level != 1)
355 BUG();
356 if (btrfs_header_level(next) !=
357 level - 1)
358 BUG();
359 btrfs_print_tree(fs_info, next);
360 free_extent_buffer(next);
361 }
362}
1/*
2 * Copyright (C) 2007 Oracle. All rights reserved.
3 *
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.
7 *
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.
12 *
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.
17 */
18
19#include "ctree.h"
20#include "disk-io.h"
21#include "print-tree.h"
22
23static void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk)
24{
25 int num_stripes = btrfs_chunk_num_stripes(eb, chunk);
26 int i;
27 printk(KERN_INFO "\t\tchunk length %llu owner %llu type %llu "
28 "num_stripes %d\n",
29 btrfs_chunk_length(eb, chunk), btrfs_chunk_owner(eb, chunk),
30 btrfs_chunk_type(eb, chunk), num_stripes);
31 for (i = 0 ; i < num_stripes ; i++) {
32 printk(KERN_INFO "\t\t\tstripe %d devid %llu offset %llu\n", i,
33 btrfs_stripe_devid_nr(eb, chunk, i),
34 btrfs_stripe_offset_nr(eb, chunk, i));
35 }
36}
37static void print_dev_item(struct extent_buffer *eb,
38 struct btrfs_dev_item *dev_item)
39{
40 printk(KERN_INFO "\t\tdev item devid %llu "
41 "total_bytes %llu bytes used %llu\n",
42 btrfs_device_id(eb, dev_item),
43 btrfs_device_total_bytes(eb, dev_item),
44 btrfs_device_bytes_used(eb, dev_item));
45}
46static void print_extent_data_ref(struct extent_buffer *eb,
47 struct btrfs_extent_data_ref *ref)
48{
49 printk(KERN_INFO "\t\textent data backref root %llu "
50 "objectid %llu offset %llu count %u\n",
51 btrfs_extent_data_ref_root(eb, ref),
52 btrfs_extent_data_ref_objectid(eb, ref),
53 btrfs_extent_data_ref_offset(eb, ref),
54 btrfs_extent_data_ref_count(eb, ref));
55}
56
57static void print_extent_item(struct extent_buffer *eb, int slot)
58{
59 struct btrfs_extent_item *ei;
60 struct btrfs_extent_inline_ref *iref;
61 struct btrfs_extent_data_ref *dref;
62 struct btrfs_shared_data_ref *sref;
63 struct btrfs_disk_key key;
64 unsigned long end;
65 unsigned long ptr;
66 int type;
67 u32 item_size = btrfs_item_size_nr(eb, slot);
68 u64 flags;
69 u64 offset;
70
71 if (item_size < sizeof(*ei)) {
72#ifdef BTRFS_COMPAT_EXTENT_TREE_V0
73 struct btrfs_extent_item_v0 *ei0;
74 BUG_ON(item_size != sizeof(*ei0));
75 ei0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_item_v0);
76 printk(KERN_INFO "\t\textent refs %u\n",
77 btrfs_extent_refs_v0(eb, ei0));
78 return;
79#else
80 BUG();
81#endif
82 }
83
84 ei = btrfs_item_ptr(eb, slot, struct btrfs_extent_item);
85 flags = btrfs_extent_flags(eb, ei);
86
87 printk(KERN_INFO "\t\textent refs %llu gen %llu flags %llu\n",
88 btrfs_extent_refs(eb, ei), btrfs_extent_generation(eb, ei),
89 flags);
90
91 if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK) {
92 struct btrfs_tree_block_info *info;
93 info = (struct btrfs_tree_block_info *)(ei + 1);
94 btrfs_tree_block_key(eb, info, &key);
95 printk(KERN_INFO "\t\ttree block key (%llu %u %llu) "
96 "level %d\n",
97 btrfs_disk_key_objectid(&key), key.type,
98 btrfs_disk_key_offset(&key),
99 btrfs_tree_block_level(eb, info));
100 iref = (struct btrfs_extent_inline_ref *)(info + 1);
101 } else {
102 iref = (struct btrfs_extent_inline_ref *)(ei + 1);
103 }
104
105 ptr = (unsigned long)iref;
106 end = (unsigned long)ei + item_size;
107 while (ptr < end) {
108 iref = (struct btrfs_extent_inline_ref *)ptr;
109 type = btrfs_extent_inline_ref_type(eb, iref);
110 offset = btrfs_extent_inline_ref_offset(eb, iref);
111 switch (type) {
112 case BTRFS_TREE_BLOCK_REF_KEY:
113 printk(KERN_INFO "\t\ttree block backref "
114 "root %llu\n", offset);
115 break;
116 case BTRFS_SHARED_BLOCK_REF_KEY:
117 printk(KERN_INFO "\t\tshared block backref "
118 "parent %llu\n", offset);
119 break;
120 case BTRFS_EXTENT_DATA_REF_KEY:
121 dref = (struct btrfs_extent_data_ref *)(&iref->offset);
122 print_extent_data_ref(eb, dref);
123 break;
124 case BTRFS_SHARED_DATA_REF_KEY:
125 sref = (struct btrfs_shared_data_ref *)(iref + 1);
126 printk(KERN_INFO "\t\tshared data backref "
127 "parent %llu count %u\n",
128 offset, btrfs_shared_data_ref_count(eb, sref));
129 break;
130 default:
131 BUG();
132 }
133 ptr += btrfs_extent_inline_ref_size(type);
134 }
135 WARN_ON(ptr > end);
136}
137
138#ifdef BTRFS_COMPAT_EXTENT_TREE_V0
139static void print_extent_ref_v0(struct extent_buffer *eb, int slot)
140{
141 struct btrfs_extent_ref_v0 *ref0;
142
143 ref0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_ref_v0);
144 printk("\t\textent back ref root %llu gen %llu "
145 "owner %llu num_refs %lu\n",
146 btrfs_ref_root_v0(eb, ref0),
147 btrfs_ref_generation_v0(eb, ref0),
148 btrfs_ref_objectid_v0(eb, ref0),
149 (unsigned long)btrfs_ref_count_v0(eb, ref0));
150}
151#endif
152
153static void print_uuid_item(struct extent_buffer *l, unsigned long offset,
154 u32 item_size)
155{
156 if (!IS_ALIGNED(item_size, sizeof(u64))) {
157 pr_warn("BTRFS: uuid item with illegal size %lu!\n",
158 (unsigned long)item_size);
159 return;
160 }
161 while (item_size) {
162 __le64 subvol_id;
163
164 read_extent_buffer(l, &subvol_id, offset, sizeof(subvol_id));
165 printk(KERN_INFO "\t\tsubvol_id %llu\n",
166 (unsigned long long)le64_to_cpu(subvol_id));
167 item_size -= sizeof(u64);
168 offset += sizeof(u64);
169 }
170}
171
172void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
173{
174 int i;
175 u32 type, nr;
176 struct btrfs_item *item;
177 struct btrfs_root_item *ri;
178 struct btrfs_dir_item *di;
179 struct btrfs_inode_item *ii;
180 struct btrfs_block_group_item *bi;
181 struct btrfs_file_extent_item *fi;
182 struct btrfs_extent_data_ref *dref;
183 struct btrfs_shared_data_ref *sref;
184 struct btrfs_dev_extent *dev_extent;
185 struct btrfs_key key;
186 struct btrfs_key found_key;
187
188 if (!l)
189 return;
190
191 nr = btrfs_header_nritems(l);
192
193 btrfs_info(root->fs_info, "leaf %llu total ptrs %d free space %d",
194 btrfs_header_bytenr(l), nr, btrfs_leaf_free_space(root, l));
195 for (i = 0 ; i < nr ; i++) {
196 item = btrfs_item_nr(i);
197 btrfs_item_key_to_cpu(l, &key, i);
198 type = btrfs_key_type(&key);
199 printk(KERN_INFO "\titem %d key (%llu %u %llu) itemoff %d "
200 "itemsize %d\n",
201 i, key.objectid, type, key.offset,
202 btrfs_item_offset(l, item), btrfs_item_size(l, item));
203 switch (type) {
204 case BTRFS_INODE_ITEM_KEY:
205 ii = btrfs_item_ptr(l, i, struct btrfs_inode_item);
206 printk(KERN_INFO "\t\tinode generation %llu size %llu "
207 "mode %o\n",
208 btrfs_inode_generation(l, ii),
209 btrfs_inode_size(l, ii),
210 btrfs_inode_mode(l, ii));
211 break;
212 case BTRFS_DIR_ITEM_KEY:
213 di = btrfs_item_ptr(l, i, struct btrfs_dir_item);
214 btrfs_dir_item_key_to_cpu(l, di, &found_key);
215 printk(KERN_INFO "\t\tdir oid %llu type %u\n",
216 found_key.objectid,
217 btrfs_dir_type(l, di));
218 break;
219 case BTRFS_ROOT_ITEM_KEY:
220 ri = btrfs_item_ptr(l, i, struct btrfs_root_item);
221 printk(KERN_INFO "\t\troot data bytenr %llu refs %u\n",
222 btrfs_disk_root_bytenr(l, ri),
223 btrfs_disk_root_refs(l, ri));
224 break;
225 case BTRFS_EXTENT_ITEM_KEY:
226 print_extent_item(l, i);
227 break;
228 case BTRFS_TREE_BLOCK_REF_KEY:
229 printk(KERN_INFO "\t\ttree block backref\n");
230 break;
231 case BTRFS_SHARED_BLOCK_REF_KEY:
232 printk(KERN_INFO "\t\tshared block backref\n");
233 break;
234 case BTRFS_EXTENT_DATA_REF_KEY:
235 dref = btrfs_item_ptr(l, i,
236 struct btrfs_extent_data_ref);
237 print_extent_data_ref(l, dref);
238 break;
239 case BTRFS_SHARED_DATA_REF_KEY:
240 sref = btrfs_item_ptr(l, i,
241 struct btrfs_shared_data_ref);
242 printk(KERN_INFO "\t\tshared data backref count %u\n",
243 btrfs_shared_data_ref_count(l, sref));
244 break;
245 case BTRFS_EXTENT_DATA_KEY:
246 fi = btrfs_item_ptr(l, i,
247 struct btrfs_file_extent_item);
248 if (btrfs_file_extent_type(l, fi) ==
249 BTRFS_FILE_EXTENT_INLINE) {
250 printk(KERN_INFO "\t\tinline extent data "
251 "size %u\n",
252 btrfs_file_extent_inline_len(l, i, fi));
253 break;
254 }
255 printk(KERN_INFO "\t\textent data disk bytenr %llu "
256 "nr %llu\n",
257 btrfs_file_extent_disk_bytenr(l, fi),
258 btrfs_file_extent_disk_num_bytes(l, fi));
259 printk(KERN_INFO "\t\textent data offset %llu "
260 "nr %llu ram %llu\n",
261 btrfs_file_extent_offset(l, fi),
262 btrfs_file_extent_num_bytes(l, fi),
263 btrfs_file_extent_ram_bytes(l, fi));
264 break;
265 case BTRFS_EXTENT_REF_V0_KEY:
266#ifdef BTRFS_COMPAT_EXTENT_TREE_V0
267 print_extent_ref_v0(l, i);
268#else
269 BUG();
270#endif
271 break;
272 case BTRFS_BLOCK_GROUP_ITEM_KEY:
273 bi = btrfs_item_ptr(l, i,
274 struct btrfs_block_group_item);
275 printk(KERN_INFO "\t\tblock group used %llu\n",
276 btrfs_disk_block_group_used(l, bi));
277 break;
278 case BTRFS_CHUNK_ITEM_KEY:
279 print_chunk(l, btrfs_item_ptr(l, i,
280 struct btrfs_chunk));
281 break;
282 case BTRFS_DEV_ITEM_KEY:
283 print_dev_item(l, btrfs_item_ptr(l, i,
284 struct btrfs_dev_item));
285 break;
286 case BTRFS_DEV_EXTENT_KEY:
287 dev_extent = btrfs_item_ptr(l, i,
288 struct btrfs_dev_extent);
289 printk(KERN_INFO "\t\tdev extent chunk_tree %llu\n"
290 "\t\tchunk objectid %llu chunk offset %llu "
291 "length %llu\n",
292 btrfs_dev_extent_chunk_tree(l, dev_extent),
293 btrfs_dev_extent_chunk_objectid(l, dev_extent),
294 btrfs_dev_extent_chunk_offset(l, dev_extent),
295 btrfs_dev_extent_length(l, dev_extent));
296 break;
297 case BTRFS_DEV_STATS_KEY:
298 printk(KERN_INFO "\t\tdevice stats\n");
299 break;
300 case BTRFS_DEV_REPLACE_KEY:
301 printk(KERN_INFO "\t\tdev replace\n");
302 break;
303 case BTRFS_UUID_KEY_SUBVOL:
304 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
305 print_uuid_item(l, btrfs_item_ptr_offset(l, i),
306 btrfs_item_size_nr(l, i));
307 break;
308 };
309 }
310}
311
312void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *c)
313{
314 int i; u32 nr;
315 struct btrfs_key key;
316 int level;
317
318 if (!c)
319 return;
320 nr = btrfs_header_nritems(c);
321 level = btrfs_header_level(c);
322 if (level == 0) {
323 btrfs_print_leaf(root, c);
324 return;
325 }
326 btrfs_info(root->fs_info, "node %llu level %d total ptrs %d free spc %u",
327 btrfs_header_bytenr(c), level, nr,
328 (u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr);
329 for (i = 0; i < nr; i++) {
330 btrfs_node_key_to_cpu(c, &key, i);
331 printk(KERN_INFO "\tkey %d (%llu %u %llu) block %llu\n",
332 i, key.objectid, key.type, key.offset,
333 btrfs_node_blockptr(c, i));
334 }
335 for (i = 0; i < nr; i++) {
336 struct extent_buffer *next = read_tree_block(root,
337 btrfs_node_blockptr(c, i),
338 btrfs_level_size(root, level - 1),
339 btrfs_node_ptr_generation(c, i));
340 if (btrfs_is_leaf(next) &&
341 level != 1)
342 BUG();
343 if (btrfs_header_level(next) !=
344 level - 1)
345 BUG();
346 btrfs_print_tree(root, next);
347 free_extent_buffer(next);
348 }
349}