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6cbd5570 CM |
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 | ||
5de08d7d CM |
19 | #include "ctree.h" |
20 | #include "disk-io.h" | |
35b7e476 | 21 | #include "print-tree.h" |
5de08d7d | 22 | |
0b86a832 CM |
23 | static 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("\t\tchunk owner %llu type %llu num_stripes %d\n", | |
28 | (unsigned long long)btrfs_chunk_owner(eb, chunk), | |
29 | (unsigned long long)btrfs_chunk_type(eb, chunk), | |
30 | num_stripes); | |
31 | for (i = 0 ; i < num_stripes ; i++) { | |
32 | printk("\t\t\tstripe %d devid %llu offset %llu\n", i, | |
33 | (unsigned long long)btrfs_stripe_devid_nr(eb, chunk, i), | |
34 | (unsigned long long)btrfs_stripe_offset_nr(eb, chunk, i)); | |
35 | } | |
36 | } | |
37 | static void print_dev_item(struct extent_buffer *eb, | |
38 | struct btrfs_dev_item *dev_item) | |
39 | { | |
40 | char *name; | |
41 | int name_len; | |
42 | ||
43 | name_len = btrfs_device_name_len(eb, dev_item); | |
44 | name = kmalloc(name_len, GFP_NOFS); | |
45 | if (name) { | |
46 | read_extent_buffer(eb, name, | |
47 | (unsigned long)btrfs_device_name(dev_item), | |
48 | name_len); | |
49 | } | |
50 | printk("\t\tdev item name %.*s devid %llu " | |
51 | "total_bytes %llu bytes used %Lu\n", name_len, name, | |
52 | (unsigned long long)btrfs_device_id(eb, dev_item), | |
53 | (unsigned long long)btrfs_device_total_bytes(eb, dev_item), | |
54 | (unsigned long long)btrfs_device_bytes_used(eb, dev_item)); | |
55 | kfree(name); | |
56 | } | |
5f39d397 | 57 | void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l) |
5de08d7d CM |
58 | { |
59 | int i; | |
5f39d397 | 60 | u32 nr = btrfs_header_nritems(l); |
0783fcfc | 61 | struct btrfs_item *item; |
234b63a0 | 62 | struct btrfs_extent_item *ei; |
3768f368 | 63 | struct btrfs_root_item *ri; |
1d4f6404 | 64 | struct btrfs_dir_item *di; |
293ffd5f | 65 | struct btrfs_inode_item *ii; |
9078a3e1 | 66 | struct btrfs_block_group_item *bi; |
8c2383c3 | 67 | struct btrfs_file_extent_item *fi; |
5f39d397 CM |
68 | struct btrfs_key key; |
69 | struct btrfs_key found_key; | |
7bb86316 | 70 | struct btrfs_extent_ref *ref; |
0b86a832 | 71 | struct btrfs_dev_extent *dev_extent; |
62e2749e | 72 | u32 type; |
1d4f6404 | 73 | |
5af3981c | 74 | printk("leaf %llu total ptrs %d free space %d\n", |
db94535d | 75 | (unsigned long long)btrfs_header_bytenr(l), nr, |
123abc88 | 76 | btrfs_leaf_free_space(root, l)); |
5de08d7d | 77 | for (i = 0 ; i < nr ; i++) { |
5f39d397 CM |
78 | item = btrfs_item_nr(l, i); |
79 | btrfs_item_key_to_cpu(l, &key, i); | |
80 | type = btrfs_key_type(&key); | |
5af3981c | 81 | printk("\titem %d key (%llu %x %llu) itemoff %d itemsize %d\n", |
5de08d7d | 82 | i, |
5f39d397 CM |
83 | (unsigned long long)key.objectid, type, |
84 | (unsigned long long)key.offset, | |
85 | btrfs_item_offset(l, item), btrfs_item_size(l, item)); | |
62e2749e CM |
86 | switch (type) { |
87 | case BTRFS_INODE_ITEM_KEY: | |
293ffd5f | 88 | ii = btrfs_item_ptr(l, i, struct btrfs_inode_item); |
5af3981c | 89 | printk("\t\tinode generation %llu size %llu mode %o\n", |
5f39d397 CM |
90 | (unsigned long long)btrfs_inode_generation(l, ii), |
91 | (unsigned long long)btrfs_inode_size(l, ii), | |
92 | btrfs_inode_mode(l, ii)); | |
62e2749e CM |
93 | break; |
94 | case BTRFS_DIR_ITEM_KEY: | |
1d4f6404 | 95 | di = btrfs_item_ptr(l, i, struct btrfs_dir_item); |
5f39d397 | 96 | btrfs_dir_item_key_to_cpu(l, di, &found_key); |
5103e947 | 97 | printk("\t\tdir oid %llu type %u\n", |
5f39d397 | 98 | (unsigned long long)found_key.objectid, |
5f39d397 | 99 | btrfs_dir_type(l, di)); |
62e2749e CM |
100 | break; |
101 | case BTRFS_ROOT_ITEM_KEY: | |
102 | ri = btrfs_item_ptr(l, i, struct btrfs_root_item); | |
db94535d CM |
103 | printk("\t\troot data bytenr %llu refs %u\n", |
104 | (unsigned long long)btrfs_disk_root_bytenr(l, ri), | |
5f39d397 | 105 | btrfs_disk_root_refs(l, ri)); |
62e2749e CM |
106 | break; |
107 | case BTRFS_EXTENT_ITEM_KEY: | |
108 | ei = btrfs_item_ptr(l, i, struct btrfs_extent_item); | |
d0dbc624 | 109 | printk("\t\textent data refs %u\n", |
5f39d397 | 110 | btrfs_extent_refs(l, ei)); |
62e2749e | 111 | break; |
7bb86316 CM |
112 | case BTRFS_EXTENT_REF_KEY: |
113 | ref = btrfs_item_ptr(l, i, struct btrfs_extent_ref); | |
114 | printk("\t\textent back ref root %llu gen %llu " | |
115 | "owner %llu offset %llu\n", | |
116 | (unsigned long long)btrfs_ref_root(l, ref), | |
117 | (unsigned long long)btrfs_ref_generation(l, ref), | |
118 | (unsigned long long)btrfs_ref_objectid(l, ref), | |
119 | (unsigned long long)btrfs_ref_offset(l, ref)); | |
120 | break; | |
8c2383c3 CM |
121 | |
122 | case BTRFS_EXTENT_DATA_KEY: | |
123 | fi = btrfs_item_ptr(l, i, | |
124 | struct btrfs_file_extent_item); | |
5f39d397 | 125 | if (btrfs_file_extent_type(l, fi) == |
8c2383c3 CM |
126 | BTRFS_FILE_EXTENT_INLINE) { |
127 | printk("\t\tinline extent data size %u\n", | |
5f39d397 | 128 | btrfs_file_extent_inline_len(l, item)); |
8c2383c3 CM |
129 | break; |
130 | } | |
db94535d CM |
131 | printk("\t\textent data disk bytenr %llu nr %llu\n", |
132 | (unsigned long long)btrfs_file_extent_disk_bytenr(l, fi), | |
133 | (unsigned long long)btrfs_file_extent_disk_num_bytes(l, fi)); | |
8c2383c3 | 134 | printk("\t\textent data offset %llu nr %llu\n", |
5f39d397 | 135 | (unsigned long long)btrfs_file_extent_offset(l, fi), |
db94535d | 136 | (unsigned long long)btrfs_file_extent_num_bytes(l, fi)); |
8c2383c3 | 137 | break; |
9078a3e1 CM |
138 | case BTRFS_BLOCK_GROUP_ITEM_KEY: |
139 | bi = btrfs_item_ptr(l, i, | |
140 | struct btrfs_block_group_item); | |
5af3981c | 141 | printk("\t\tblock group used %llu\n", |
5f39d397 | 142 | (unsigned long long)btrfs_disk_block_group_used(l, bi)); |
62e2749e | 143 | break; |
0b86a832 CM |
144 | case BTRFS_CHUNK_ITEM_KEY: |
145 | print_chunk(l, btrfs_item_ptr(l, i, struct btrfs_chunk)); | |
146 | break; | |
147 | case BTRFS_DEV_ITEM_KEY: | |
148 | print_dev_item(l, btrfs_item_ptr(l, i, | |
149 | struct btrfs_dev_item)); | |
150 | break; | |
151 | case BTRFS_DEV_EXTENT_KEY: | |
152 | dev_extent = btrfs_item_ptr(l, i, | |
153 | struct btrfs_dev_extent); | |
154 | printk("\t\tdev extent owner %llu length %llu\n", | |
155 | (unsigned long long)btrfs_dev_extent_owner(l, dev_extent), | |
156 | (unsigned long long)btrfs_dev_extent_length(l, dev_extent)); | |
62e2749e | 157 | }; |
5de08d7d CM |
158 | } |
159 | } | |
e20d96d6 | 160 | |
5f39d397 | 161 | void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *c) |
5de08d7d CM |
162 | { |
163 | int i; | |
7518a238 | 164 | u32 nr; |
5f39d397 | 165 | struct btrfs_key key; |
db94535d | 166 | int level; |
5de08d7d | 167 | |
5f39d397 | 168 | if (!c) |
5de08d7d | 169 | return; |
5f39d397 | 170 | nr = btrfs_header_nritems(c); |
db94535d CM |
171 | level = btrfs_header_level(c); |
172 | if (level == 0) { | |
5f39d397 | 173 | btrfs_print_leaf(root, c); |
5de08d7d CM |
174 | return; |
175 | } | |
5af3981c | 176 | printk("node %llu level %d total ptrs %d free spc %u\n", |
db94535d | 177 | (unsigned long long)btrfs_header_bytenr(c), |
5f39d397 | 178 | btrfs_header_level(c), nr, |
e20d96d6 | 179 | (u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr); |
5de08d7d | 180 | for (i = 0; i < nr; i++) { |
5f39d397 | 181 | btrfs_node_key_to_cpu(c, &key, i); |
5af3981c | 182 | printk("\tkey %d (%llu %u %llu) block %llu\n", |
5de08d7d | 183 | i, |
5f39d397 CM |
184 | (unsigned long long)key.objectid, |
185 | key.type, | |
186 | (unsigned long long)key.offset, | |
5af3981c | 187 | (unsigned long long)btrfs_node_blockptr(c, i)); |
5de08d7d CM |
188 | } |
189 | for (i = 0; i < nr; i++) { | |
5f39d397 | 190 | struct extent_buffer *next = read_tree_block(root, |
db94535d CM |
191 | btrfs_node_blockptr(c, i), |
192 | btrfs_level_size(root, level - 1)); | |
7518a238 | 193 | if (btrfs_is_leaf(next) && |
5f39d397 | 194 | btrfs_header_level(c) != 1) |
5de08d7d | 195 | BUG(); |
5f39d397 CM |
196 | if (btrfs_header_level(next) != |
197 | btrfs_header_level(c) - 1) | |
5de08d7d | 198 | BUG(); |
5f39d397 CM |
199 | btrfs_print_tree(root, next); |
200 | free_extent_buffer(next); | |
5de08d7d | 201 | } |
5de08d7d CM |
202 | } |
203 |