blob: e99f3249d05a403af48a88066faeb68154c0cafe [file] [log] [blame]
Chris Mason6cbd5572007-06-12 09:07:21 -04001/*
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
Chris Mason5de08d72007-02-24 06:24:44 -050019#include "ctree.h"
20#include "disk-io.h"
Chris Mason35b7e472007-05-02 15:53:43 -040021#include "print-tree.h"
Chris Mason5de08d72007-02-24 06:24:44 -050022
Chris Mason0b86a832008-03-24 15:01:56 -040023static 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;
Chris Masone17cade2008-04-15 15:41:47 -040027 printk("\t\tchunk length %llu owner %llu type %llu num_stripes %d\n",
28 (unsigned long long)btrfs_chunk_length(eb, chunk),
Chris Mason0b86a832008-03-24 15:01:56 -040029 (unsigned long long)btrfs_chunk_owner(eb, chunk),
30 (unsigned long long)btrfs_chunk_type(eb, chunk),
31 num_stripes);
32 for (i = 0 ; i < num_stripes ; i++) {
33 printk("\t\t\tstripe %d devid %llu offset %llu\n", i,
34 (unsigned long long)btrfs_stripe_devid_nr(eb, chunk, i),
35 (unsigned long long)btrfs_stripe_offset_nr(eb, chunk, i));
36 }
37}
38static void print_dev_item(struct extent_buffer *eb,
39 struct btrfs_dev_item *dev_item)
40{
Chris Mason0d81ba52008-03-24 15:02:07 -040041 printk("\t\tdev item devid %llu "
42 "total_bytes %llu bytes used %Lu\n",
Chris Mason0b86a832008-03-24 15:01:56 -040043 (unsigned long long)btrfs_device_id(eb, dev_item),
44 (unsigned long long)btrfs_device_total_bytes(eb, dev_item),
45 (unsigned long long)btrfs_device_bytes_used(eb, dev_item));
Chris Mason0b86a832008-03-24 15:01:56 -040046}
Chris Mason5f39d392007-10-15 16:14:19 -040047void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
Chris Mason5de08d72007-02-24 06:24:44 -050048{
49 int i;
Chris Mason5f39d392007-10-15 16:14:19 -040050 u32 nr = btrfs_header_nritems(l);
Chris Mason0783fcf2007-03-12 20:12:07 -040051 struct btrfs_item *item;
Chris Mason234b63a2007-03-13 10:46:10 -040052 struct btrfs_extent_item *ei;
Chris Mason3768f362007-03-13 16:47:54 -040053 struct btrfs_root_item *ri;
Chris Mason1d4f6402007-03-15 15:18:43 -040054 struct btrfs_dir_item *di;
Chris Mason293ffd52007-03-20 15:57:25 -040055 struct btrfs_inode_item *ii;
Chris Mason9078a3e2007-04-26 16:46:15 -040056 struct btrfs_block_group_item *bi;
Chris Mason8c2383c2007-06-18 09:57:58 -040057 struct btrfs_file_extent_item *fi;
Chris Mason5f39d392007-10-15 16:14:19 -040058 struct btrfs_key key;
59 struct btrfs_key found_key;
Chris Mason7bb86312007-12-11 09:25:06 -050060 struct btrfs_extent_ref *ref;
Chris Mason0b86a832008-03-24 15:01:56 -040061 struct btrfs_dev_extent *dev_extent;
Chris Mason62e27492007-03-15 12:56:47 -040062 u32 type;
Chris Mason1d4f6402007-03-15 15:18:43 -040063
Chris Mason5af39812007-06-12 07:50:13 -040064 printk("leaf %llu total ptrs %d free space %d\n",
Chris Masondb945352007-10-15 16:15:53 -040065 (unsigned long long)btrfs_header_bytenr(l), nr,
Chris Mason123abc82007-03-14 14:14:43 -040066 btrfs_leaf_free_space(root, l));
Chris Mason5de08d72007-02-24 06:24:44 -050067 for (i = 0 ; i < nr ; i++) {
Chris Mason5f39d392007-10-15 16:14:19 -040068 item = btrfs_item_nr(l, i);
69 btrfs_item_key_to_cpu(l, &key, i);
70 type = btrfs_key_type(&key);
Chris Mason5af39812007-06-12 07:50:13 -040071 printk("\titem %d key (%llu %x %llu) itemoff %d itemsize %d\n",
Chris Mason5de08d72007-02-24 06:24:44 -050072 i,
Chris Mason5f39d392007-10-15 16:14:19 -040073 (unsigned long long)key.objectid, type,
74 (unsigned long long)key.offset,
75 btrfs_item_offset(l, item), btrfs_item_size(l, item));
Chris Mason62e27492007-03-15 12:56:47 -040076 switch (type) {
77 case BTRFS_INODE_ITEM_KEY:
Chris Mason293ffd52007-03-20 15:57:25 -040078 ii = btrfs_item_ptr(l, i, struct btrfs_inode_item);
Chris Mason5af39812007-06-12 07:50:13 -040079 printk("\t\tinode generation %llu size %llu mode %o\n",
Chris Mason5f39d392007-10-15 16:14:19 -040080 (unsigned long long)btrfs_inode_generation(l, ii),
81 (unsigned long long)btrfs_inode_size(l, ii),
82 btrfs_inode_mode(l, ii));
Chris Mason62e27492007-03-15 12:56:47 -040083 break;
84 case BTRFS_DIR_ITEM_KEY:
Chris Mason1d4f6402007-03-15 15:18:43 -040085 di = btrfs_item_ptr(l, i, struct btrfs_dir_item);
Chris Mason5f39d392007-10-15 16:14:19 -040086 btrfs_dir_item_key_to_cpu(l, di, &found_key);
Josef Bacik5103e942007-11-16 11:45:54 -050087 printk("\t\tdir oid %llu type %u\n",
Chris Mason5f39d392007-10-15 16:14:19 -040088 (unsigned long long)found_key.objectid,
Chris Mason5f39d392007-10-15 16:14:19 -040089 btrfs_dir_type(l, di));
Chris Mason62e27492007-03-15 12:56:47 -040090 break;
91 case BTRFS_ROOT_ITEM_KEY:
92 ri = btrfs_item_ptr(l, i, struct btrfs_root_item);
Chris Masondb945352007-10-15 16:15:53 -040093 printk("\t\troot data bytenr %llu refs %u\n",
94 (unsigned long long)btrfs_disk_root_bytenr(l, ri),
Chris Mason5f39d392007-10-15 16:14:19 -040095 btrfs_disk_root_refs(l, ri));
Chris Mason62e27492007-03-15 12:56:47 -040096 break;
97 case BTRFS_EXTENT_ITEM_KEY:
98 ei = btrfs_item_ptr(l, i, struct btrfs_extent_item);
Chris Masond0dbc622007-04-10 12:36:36 -040099 printk("\t\textent data refs %u\n",
Chris Mason5f39d392007-10-15 16:14:19 -0400100 btrfs_extent_refs(l, ei));
Chris Mason62e27492007-03-15 12:56:47 -0400101 break;
Chris Mason7bb86312007-12-11 09:25:06 -0500102 case BTRFS_EXTENT_REF_KEY:
103 ref = btrfs_item_ptr(l, i, struct btrfs_extent_ref);
104 printk("\t\textent back ref root %llu gen %llu "
105 "owner %llu offset %llu\n",
106 (unsigned long long)btrfs_ref_root(l, ref),
107 (unsigned long long)btrfs_ref_generation(l, ref),
108 (unsigned long long)btrfs_ref_objectid(l, ref),
109 (unsigned long long)btrfs_ref_offset(l, ref));
110 break;
Chris Mason8c2383c2007-06-18 09:57:58 -0400111
112 case BTRFS_EXTENT_DATA_KEY:
113 fi = btrfs_item_ptr(l, i,
114 struct btrfs_file_extent_item);
Chris Mason5f39d392007-10-15 16:14:19 -0400115 if (btrfs_file_extent_type(l, fi) ==
Chris Mason8c2383c2007-06-18 09:57:58 -0400116 BTRFS_FILE_EXTENT_INLINE) {
117 printk("\t\tinline extent data size %u\n",
Chris Mason5f39d392007-10-15 16:14:19 -0400118 btrfs_file_extent_inline_len(l, item));
Chris Mason8c2383c2007-06-18 09:57:58 -0400119 break;
120 }
Chris Masondb945352007-10-15 16:15:53 -0400121 printk("\t\textent data disk bytenr %llu nr %llu\n",
122 (unsigned long long)btrfs_file_extent_disk_bytenr(l, fi),
123 (unsigned long long)btrfs_file_extent_disk_num_bytes(l, fi));
Chris Mason8c2383c2007-06-18 09:57:58 -0400124 printk("\t\textent data offset %llu nr %llu\n",
Chris Mason5f39d392007-10-15 16:14:19 -0400125 (unsigned long long)btrfs_file_extent_offset(l, fi),
Chris Masondb945352007-10-15 16:15:53 -0400126 (unsigned long long)btrfs_file_extent_num_bytes(l, fi));
Chris Mason8c2383c2007-06-18 09:57:58 -0400127 break;
Chris Mason9078a3e2007-04-26 16:46:15 -0400128 case BTRFS_BLOCK_GROUP_ITEM_KEY:
129 bi = btrfs_item_ptr(l, i,
130 struct btrfs_block_group_item);
Chris Mason5af39812007-06-12 07:50:13 -0400131 printk("\t\tblock group used %llu\n",
Chris Mason5f39d392007-10-15 16:14:19 -0400132 (unsigned long long)btrfs_disk_block_group_used(l, bi));
Chris Mason62e27492007-03-15 12:56:47 -0400133 break;
Chris Mason0b86a832008-03-24 15:01:56 -0400134 case BTRFS_CHUNK_ITEM_KEY:
135 print_chunk(l, btrfs_item_ptr(l, i, struct btrfs_chunk));
136 break;
137 case BTRFS_DEV_ITEM_KEY:
138 print_dev_item(l, btrfs_item_ptr(l, i,
139 struct btrfs_dev_item));
140 break;
141 case BTRFS_DEV_EXTENT_KEY:
142 dev_extent = btrfs_item_ptr(l, i,
143 struct btrfs_dev_extent);
Chris Masone17cade2008-04-15 15:41:47 -0400144 printk("\t\tdev extent chunk_tree %llu\n"
145 "\t\tchunk objectid %llu chunk offset %llu "
146 "length %llu\n",
147 (unsigned long long)
148 btrfs_dev_extent_chunk_tree(l, dev_extent),
149 (unsigned long long)
150 btrfs_dev_extent_chunk_objectid(l, dev_extent),
151 (unsigned long long)
152 btrfs_dev_extent_chunk_offset(l, dev_extent),
153 (unsigned long long)
154 btrfs_dev_extent_length(l, dev_extent));
Chris Mason62e27492007-03-15 12:56:47 -0400155 };
Chris Mason5de08d72007-02-24 06:24:44 -0500156 }
157}
Chris Masone20d96d2007-03-22 12:13:20 -0400158
Chris Mason5f39d392007-10-15 16:14:19 -0400159void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *c)
Chris Mason5de08d72007-02-24 06:24:44 -0500160{
Chris Masone17cade2008-04-15 15:41:47 -0400161 int i; u32 nr;
Chris Mason5f39d392007-10-15 16:14:19 -0400162 struct btrfs_key key;
Chris Masondb945352007-10-15 16:15:53 -0400163 int level;
Chris Mason5de08d72007-02-24 06:24:44 -0500164
Chris Mason5f39d392007-10-15 16:14:19 -0400165 if (!c)
Chris Mason5de08d72007-02-24 06:24:44 -0500166 return;
Chris Mason5f39d392007-10-15 16:14:19 -0400167 nr = btrfs_header_nritems(c);
Chris Masondb945352007-10-15 16:15:53 -0400168 level = btrfs_header_level(c);
169 if (level == 0) {
Chris Mason5f39d392007-10-15 16:14:19 -0400170 btrfs_print_leaf(root, c);
Chris Mason5de08d72007-02-24 06:24:44 -0500171 return;
172 }
Chris Mason5af39812007-06-12 07:50:13 -0400173 printk("node %llu level %d total ptrs %d free spc %u\n",
Chris Masondb945352007-10-15 16:15:53 -0400174 (unsigned long long)btrfs_header_bytenr(c),
Chris Mason5f39d392007-10-15 16:14:19 -0400175 btrfs_header_level(c), nr,
Chris Masone20d96d2007-03-22 12:13:20 -0400176 (u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr);
Chris Mason5de08d72007-02-24 06:24:44 -0500177 for (i = 0; i < nr; i++) {
Chris Mason5f39d392007-10-15 16:14:19 -0400178 btrfs_node_key_to_cpu(c, &key, i);
Chris Mason5af39812007-06-12 07:50:13 -0400179 printk("\tkey %d (%llu %u %llu) block %llu\n",
Chris Mason5de08d72007-02-24 06:24:44 -0500180 i,
Chris Mason5f39d392007-10-15 16:14:19 -0400181 (unsigned long long)key.objectid,
182 key.type,
183 (unsigned long long)key.offset,
Chris Mason5af39812007-06-12 07:50:13 -0400184 (unsigned long long)btrfs_node_blockptr(c, i));
Chris Mason5de08d72007-02-24 06:24:44 -0500185 }
186 for (i = 0; i < nr; i++) {
Chris Mason5f39d392007-10-15 16:14:19 -0400187 struct extent_buffer *next = read_tree_block(root,
Chris Masondb945352007-10-15 16:15:53 -0400188 btrfs_node_blockptr(c, i),
189 btrfs_level_size(root, level - 1));
Chris Mason7518a232007-03-12 12:01:18 -0400190 if (btrfs_is_leaf(next) &&
Chris Mason5f39d392007-10-15 16:14:19 -0400191 btrfs_header_level(c) != 1)
Chris Mason5de08d72007-02-24 06:24:44 -0500192 BUG();
Chris Mason5f39d392007-10-15 16:14:19 -0400193 if (btrfs_header_level(next) !=
194 btrfs_header_level(c) - 1)
Chris Mason5de08d72007-02-24 06:24:44 -0500195 BUG();
Chris Mason5f39d392007-10-15 16:14:19 -0400196 btrfs_print_tree(root, next);
197 free_extent_buffer(next);
Chris Mason5de08d72007-02-24 06:24:44 -0500198 }
Chris Mason5de08d72007-02-24 06:24:44 -0500199}
200