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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 | |
5f39d397 | 23 | void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l) |
5de08d7d CM |
24 | { |
25 | int i; | |
5f39d397 | 26 | u32 nr = btrfs_header_nritems(l); |
0783fcfc | 27 | struct btrfs_item *item; |
234b63a0 | 28 | struct btrfs_extent_item *ei; |
3768f368 | 29 | struct btrfs_root_item *ri; |
1d4f6404 | 30 | struct btrfs_dir_item *di; |
293ffd5f | 31 | struct btrfs_inode_item *ii; |
9078a3e1 | 32 | struct btrfs_block_group_item *bi; |
8c2383c3 | 33 | struct btrfs_file_extent_item *fi; |
5f39d397 CM |
34 | struct btrfs_key key; |
35 | struct btrfs_key found_key; | |
7bb86316 | 36 | struct btrfs_extent_ref *ref; |
62e2749e | 37 | u32 type; |
1d4f6404 | 38 | |
5af3981c | 39 | printk("leaf %llu total ptrs %d free space %d\n", |
db94535d | 40 | (unsigned long long)btrfs_header_bytenr(l), nr, |
123abc88 | 41 | btrfs_leaf_free_space(root, l)); |
5de08d7d | 42 | for (i = 0 ; i < nr ; i++) { |
5f39d397 CM |
43 | item = btrfs_item_nr(l, i); |
44 | btrfs_item_key_to_cpu(l, &key, i); | |
45 | type = btrfs_key_type(&key); | |
5af3981c | 46 | printk("\titem %d key (%llu %x %llu) itemoff %d itemsize %d\n", |
5de08d7d | 47 | i, |
5f39d397 CM |
48 | (unsigned long long)key.objectid, type, |
49 | (unsigned long long)key.offset, | |
50 | btrfs_item_offset(l, item), btrfs_item_size(l, item)); | |
62e2749e CM |
51 | switch (type) { |
52 | case BTRFS_INODE_ITEM_KEY: | |
293ffd5f | 53 | ii = btrfs_item_ptr(l, i, struct btrfs_inode_item); |
5af3981c | 54 | printk("\t\tinode generation %llu size %llu mode %o\n", |
5f39d397 CM |
55 | (unsigned long long)btrfs_inode_generation(l, ii), |
56 | (unsigned long long)btrfs_inode_size(l, ii), | |
57 | btrfs_inode_mode(l, ii)); | |
62e2749e CM |
58 | break; |
59 | case BTRFS_DIR_ITEM_KEY: | |
1d4f6404 | 60 | di = btrfs_item_ptr(l, i, struct btrfs_dir_item); |
5f39d397 | 61 | btrfs_dir_item_key_to_cpu(l, di, &found_key); |
5103e947 | 62 | printk("\t\tdir oid %llu type %u\n", |
5f39d397 | 63 | (unsigned long long)found_key.objectid, |
5f39d397 | 64 | btrfs_dir_type(l, di)); |
62e2749e CM |
65 | break; |
66 | case BTRFS_ROOT_ITEM_KEY: | |
67 | ri = btrfs_item_ptr(l, i, struct btrfs_root_item); | |
db94535d CM |
68 | printk("\t\troot data bytenr %llu refs %u\n", |
69 | (unsigned long long)btrfs_disk_root_bytenr(l, ri), | |
5f39d397 | 70 | btrfs_disk_root_refs(l, ri)); |
62e2749e CM |
71 | break; |
72 | case BTRFS_EXTENT_ITEM_KEY: | |
73 | ei = btrfs_item_ptr(l, i, struct btrfs_extent_item); | |
d0dbc624 | 74 | printk("\t\textent data refs %u\n", |
5f39d397 | 75 | btrfs_extent_refs(l, ei)); |
62e2749e | 76 | break; |
7bb86316 CM |
77 | case BTRFS_EXTENT_REF_KEY: |
78 | ref = btrfs_item_ptr(l, i, struct btrfs_extent_ref); | |
79 | printk("\t\textent back ref root %llu gen %llu " | |
80 | "owner %llu offset %llu\n", | |
81 | (unsigned long long)btrfs_ref_root(l, ref), | |
82 | (unsigned long long)btrfs_ref_generation(l, ref), | |
83 | (unsigned long long)btrfs_ref_objectid(l, ref), | |
84 | (unsigned long long)btrfs_ref_offset(l, ref)); | |
85 | break; | |
8c2383c3 CM |
86 | |
87 | case BTRFS_EXTENT_DATA_KEY: | |
88 | fi = btrfs_item_ptr(l, i, | |
89 | struct btrfs_file_extent_item); | |
5f39d397 | 90 | if (btrfs_file_extent_type(l, fi) == |
8c2383c3 CM |
91 | BTRFS_FILE_EXTENT_INLINE) { |
92 | printk("\t\tinline extent data size %u\n", | |
5f39d397 | 93 | btrfs_file_extent_inline_len(l, item)); |
8c2383c3 CM |
94 | break; |
95 | } | |
db94535d CM |
96 | printk("\t\textent data disk bytenr %llu nr %llu\n", |
97 | (unsigned long long)btrfs_file_extent_disk_bytenr(l, fi), | |
98 | (unsigned long long)btrfs_file_extent_disk_num_bytes(l, fi)); | |
8c2383c3 | 99 | printk("\t\textent data offset %llu nr %llu\n", |
5f39d397 | 100 | (unsigned long long)btrfs_file_extent_offset(l, fi), |
db94535d | 101 | (unsigned long long)btrfs_file_extent_num_bytes(l, fi)); |
8c2383c3 | 102 | break; |
9078a3e1 CM |
103 | case BTRFS_BLOCK_GROUP_ITEM_KEY: |
104 | bi = btrfs_item_ptr(l, i, | |
105 | struct btrfs_block_group_item); | |
5af3981c | 106 | printk("\t\tblock group used %llu\n", |
5f39d397 | 107 | (unsigned long long)btrfs_disk_block_group_used(l, bi)); |
62e2749e CM |
108 | break; |
109 | }; | |
5de08d7d CM |
110 | } |
111 | } | |
e20d96d6 | 112 | |
5f39d397 | 113 | void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *c) |
5de08d7d CM |
114 | { |
115 | int i; | |
7518a238 | 116 | u32 nr; |
5f39d397 | 117 | struct btrfs_key key; |
db94535d | 118 | int level; |
5de08d7d | 119 | |
5f39d397 | 120 | if (!c) |
5de08d7d | 121 | return; |
5f39d397 | 122 | nr = btrfs_header_nritems(c); |
db94535d CM |
123 | level = btrfs_header_level(c); |
124 | if (level == 0) { | |
5f39d397 | 125 | btrfs_print_leaf(root, c); |
5de08d7d CM |
126 | return; |
127 | } | |
5af3981c | 128 | printk("node %llu level %d total ptrs %d free spc %u\n", |
db94535d | 129 | (unsigned long long)btrfs_header_bytenr(c), |
5f39d397 | 130 | btrfs_header_level(c), nr, |
e20d96d6 | 131 | (u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr); |
5de08d7d | 132 | for (i = 0; i < nr; i++) { |
5f39d397 | 133 | btrfs_node_key_to_cpu(c, &key, i); |
5af3981c | 134 | printk("\tkey %d (%llu %u %llu) block %llu\n", |
5de08d7d | 135 | i, |
5f39d397 CM |
136 | (unsigned long long)key.objectid, |
137 | key.type, | |
138 | (unsigned long long)key.offset, | |
5af3981c | 139 | (unsigned long long)btrfs_node_blockptr(c, i)); |
5de08d7d CM |
140 | } |
141 | for (i = 0; i < nr; i++) { | |
5f39d397 | 142 | struct extent_buffer *next = read_tree_block(root, |
db94535d CM |
143 | btrfs_node_blockptr(c, i), |
144 | btrfs_level_size(root, level - 1)); | |
7518a238 | 145 | if (btrfs_is_leaf(next) && |
5f39d397 | 146 | btrfs_header_level(c) != 1) |
5de08d7d | 147 | BUG(); |
5f39d397 CM |
148 | if (btrfs_header_level(next) != |
149 | btrfs_header_level(c) - 1) | |
5de08d7d | 150 | BUG(); |
5f39d397 CM |
151 | btrfs_print_tree(root, next); |
152 | free_extent_buffer(next); | |
5de08d7d | 153 | } |
5de08d7d CM |
154 | } |
155 |