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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 Mason5f39d392007-10-15 16:14:19 -040023void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
Chris Mason5de08d72007-02-24 06:24:44 -050024{
25 int i;
Chris Mason5f39d392007-10-15 16:14:19 -040026 u32 nr = btrfs_header_nritems(l);
Chris Mason0783fcf2007-03-12 20:12:07 -040027 struct btrfs_item *item;
Chris Mason234b63a2007-03-13 10:46:10 -040028 struct btrfs_extent_item *ei;
Chris Mason3768f362007-03-13 16:47:54 -040029 struct btrfs_root_item *ri;
Chris Mason1d4f6402007-03-15 15:18:43 -040030 struct btrfs_dir_item *di;
Chris Mason293ffd52007-03-20 15:57:25 -040031 struct btrfs_inode_item *ii;
Chris Mason9078a3e2007-04-26 16:46:15 -040032 struct btrfs_block_group_item *bi;
Chris Mason8c2383c2007-06-18 09:57:58 -040033 struct btrfs_file_extent_item *fi;
Chris Mason5f39d392007-10-15 16:14:19 -040034 struct btrfs_key key;
35 struct btrfs_key found_key;
Chris Mason62e27492007-03-15 12:56:47 -040036 u32 type;
Chris Mason1d4f6402007-03-15 15:18:43 -040037
Chris Mason5af39812007-06-12 07:50:13 -040038 printk("leaf %llu total ptrs %d free space %d\n",
Chris Masondb945352007-10-15 16:15:53 -040039 (unsigned long long)btrfs_header_bytenr(l), nr,
Chris Mason123abc82007-03-14 14:14:43 -040040 btrfs_leaf_free_space(root, l));
Chris Mason5de08d72007-02-24 06:24:44 -050041 for (i = 0 ; i < nr ; i++) {
Chris Mason5f39d392007-10-15 16:14:19 -040042 item = btrfs_item_nr(l, i);
43 btrfs_item_key_to_cpu(l, &key, i);
44 type = btrfs_key_type(&key);
Chris Mason5af39812007-06-12 07:50:13 -040045 printk("\titem %d key (%llu %x %llu) itemoff %d itemsize %d\n",
Chris Mason5de08d72007-02-24 06:24:44 -050046 i,
Chris Mason5f39d392007-10-15 16:14:19 -040047 (unsigned long long)key.objectid, type,
48 (unsigned long long)key.offset,
49 btrfs_item_offset(l, item), btrfs_item_size(l, item));
Chris Mason62e27492007-03-15 12:56:47 -040050 switch (type) {
51 case BTRFS_INODE_ITEM_KEY:
Chris Mason293ffd52007-03-20 15:57:25 -040052 ii = btrfs_item_ptr(l, i, struct btrfs_inode_item);
Chris Mason5af39812007-06-12 07:50:13 -040053 printk("\t\tinode generation %llu size %llu mode %o\n",
Chris Mason5f39d392007-10-15 16:14:19 -040054 (unsigned long long)btrfs_inode_generation(l, ii),
55 (unsigned long long)btrfs_inode_size(l, ii),
56 btrfs_inode_mode(l, ii));
Chris Mason62e27492007-03-15 12:56:47 -040057 break;
58 case BTRFS_DIR_ITEM_KEY:
Chris Mason1d4f6402007-03-15 15:18:43 -040059 di = btrfs_item_ptr(l, i, struct btrfs_dir_item);
Chris Mason5f39d392007-10-15 16:14:19 -040060 btrfs_dir_item_key_to_cpu(l, di, &found_key);
Chris Mason5af39812007-06-12 07:50:13 -040061 printk("\t\tdir oid %llu flags %u type %u\n",
Chris Mason5f39d392007-10-15 16:14:19 -040062 (unsigned long long)found_key.objectid,
63 btrfs_dir_flags(l, di),
64 btrfs_dir_type(l, di));
Chris Mason62e27492007-03-15 12:56:47 -040065 break;
66 case BTRFS_ROOT_ITEM_KEY:
67 ri = btrfs_item_ptr(l, i, struct btrfs_root_item);
Chris Masondb945352007-10-15 16:15:53 -040068 printk("\t\troot data bytenr %llu refs %u\n",
69 (unsigned long long)btrfs_disk_root_bytenr(l, ri),
Chris Mason5f39d392007-10-15 16:14:19 -040070 btrfs_disk_root_refs(l, ri));
Chris Mason62e27492007-03-15 12:56:47 -040071 break;
72 case BTRFS_EXTENT_ITEM_KEY:
73 ei = btrfs_item_ptr(l, i, struct btrfs_extent_item);
Chris Masond0dbc622007-04-10 12:36:36 -040074 printk("\t\textent data refs %u\n",
Chris Mason5f39d392007-10-15 16:14:19 -040075 btrfs_extent_refs(l, ei));
Chris Mason62e27492007-03-15 12:56:47 -040076 break;
Chris Mason8c2383c2007-06-18 09:57:58 -040077
78 case BTRFS_EXTENT_DATA_KEY:
79 fi = btrfs_item_ptr(l, i,
80 struct btrfs_file_extent_item);
Chris Mason5f39d392007-10-15 16:14:19 -040081 if (btrfs_file_extent_type(l, fi) ==
Chris Mason8c2383c2007-06-18 09:57:58 -040082 BTRFS_FILE_EXTENT_INLINE) {
83 printk("\t\tinline extent data size %u\n",
Chris Mason5f39d392007-10-15 16:14:19 -040084 btrfs_file_extent_inline_len(l, item));
Chris Mason8c2383c2007-06-18 09:57:58 -040085 break;
86 }
Chris Masondb945352007-10-15 16:15:53 -040087 printk("\t\textent data disk bytenr %llu nr %llu\n",
88 (unsigned long long)btrfs_file_extent_disk_bytenr(l, fi),
89 (unsigned long long)btrfs_file_extent_disk_num_bytes(l, fi));
Chris Mason8c2383c2007-06-18 09:57:58 -040090 printk("\t\textent data offset %llu nr %llu\n",
Chris Mason5f39d392007-10-15 16:14:19 -040091 (unsigned long long)btrfs_file_extent_offset(l, fi),
Chris Masondb945352007-10-15 16:15:53 -040092 (unsigned long long)btrfs_file_extent_num_bytes(l, fi));
Chris Mason8c2383c2007-06-18 09:57:58 -040093 break;
Chris Mason9078a3e2007-04-26 16:46:15 -040094 case BTRFS_BLOCK_GROUP_ITEM_KEY:
95 bi = btrfs_item_ptr(l, i,
96 struct btrfs_block_group_item);
Chris Mason5af39812007-06-12 07:50:13 -040097 printk("\t\tblock group used %llu\n",
Chris Mason5f39d392007-10-15 16:14:19 -040098 (unsigned long long)btrfs_disk_block_group_used(l, bi));
Chris Mason62e27492007-03-15 12:56:47 -040099 break;
100 };
Chris Mason5de08d72007-02-24 06:24:44 -0500101 }
102}
Chris Masone20d96d2007-03-22 12:13:20 -0400103
Chris Mason5f39d392007-10-15 16:14:19 -0400104void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *c)
Chris Mason5de08d72007-02-24 06:24:44 -0500105{
106 int i;
Chris Mason7518a232007-03-12 12:01:18 -0400107 u32 nr;
Chris Mason5f39d392007-10-15 16:14:19 -0400108 struct btrfs_key key;
Chris Masondb945352007-10-15 16:15:53 -0400109 int level;
Chris Mason5de08d72007-02-24 06:24:44 -0500110
Chris Mason5f39d392007-10-15 16:14:19 -0400111 if (!c)
Chris Mason5de08d72007-02-24 06:24:44 -0500112 return;
Chris Mason5f39d392007-10-15 16:14:19 -0400113 nr = btrfs_header_nritems(c);
Chris Masondb945352007-10-15 16:15:53 -0400114 level = btrfs_header_level(c);
115 if (level == 0) {
Chris Mason5f39d392007-10-15 16:14:19 -0400116 btrfs_print_leaf(root, c);
Chris Mason5de08d72007-02-24 06:24:44 -0500117 return;
118 }
Chris Mason5af39812007-06-12 07:50:13 -0400119 printk("node %llu level %d total ptrs %d free spc %u\n",
Chris Masondb945352007-10-15 16:15:53 -0400120 (unsigned long long)btrfs_header_bytenr(c),
Chris Mason5f39d392007-10-15 16:14:19 -0400121 btrfs_header_level(c), nr,
Chris Masone20d96d2007-03-22 12:13:20 -0400122 (u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr);
Chris Mason5de08d72007-02-24 06:24:44 -0500123 for (i = 0; i < nr; i++) {
Chris Mason5f39d392007-10-15 16:14:19 -0400124 btrfs_node_key_to_cpu(c, &key, i);
Chris Mason5af39812007-06-12 07:50:13 -0400125 printk("\tkey %d (%llu %u %llu) block %llu\n",
Chris Mason5de08d72007-02-24 06:24:44 -0500126 i,
Chris Mason5f39d392007-10-15 16:14:19 -0400127 (unsigned long long)key.objectid,
128 key.type,
129 (unsigned long long)key.offset,
Chris Mason5af39812007-06-12 07:50:13 -0400130 (unsigned long long)btrfs_node_blockptr(c, i));
Chris Mason5de08d72007-02-24 06:24:44 -0500131 }
132 for (i = 0; i < nr; i++) {
Chris Mason5f39d392007-10-15 16:14:19 -0400133 struct extent_buffer *next = read_tree_block(root,
Chris Masondb945352007-10-15 16:15:53 -0400134 btrfs_node_blockptr(c, i),
135 btrfs_level_size(root, level - 1));
Chris Mason7518a232007-03-12 12:01:18 -0400136 if (btrfs_is_leaf(next) &&
Chris Mason5f39d392007-10-15 16:14:19 -0400137 btrfs_header_level(c) != 1)
Chris Mason5de08d72007-02-24 06:24:44 -0500138 BUG();
Chris Mason5f39d392007-10-15 16:14:19 -0400139 if (btrfs_header_level(next) !=
140 btrfs_header_level(c) - 1)
Chris Mason5de08d72007-02-24 06:24:44 -0500141 BUG();
Chris Mason5f39d392007-10-15 16:14:19 -0400142 btrfs_print_tree(root, next);
143 free_extent_buffer(next);
Chris Mason5de08d72007-02-24 06:24:44 -0500144 }
Chris Mason5de08d72007-02-24 06:24:44 -0500145}
146