2 * Copyright (C) 2007 Oracle. All rights reserved.
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.
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.
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.
21 #include "print-tree.h"
23 void btrfs_print_leaf(struct btrfs_root
*root
, struct extent_buffer
*l
)
26 u32 nr
= btrfs_header_nritems(l
);
27 struct btrfs_item
*item
;
28 struct btrfs_extent_item
*ei
;
29 struct btrfs_root_item
*ri
;
30 struct btrfs_dir_item
*di
;
31 struct btrfs_inode_item
*ii
;
32 struct btrfs_block_group_item
*bi
;
33 struct btrfs_file_extent_item
*fi
;
35 struct btrfs_key found_key
;
38 printk("leaf %llu total ptrs %d free space %d\n",
39 (unsigned long long)btrfs_header_bytenr(l
), nr
,
40 btrfs_leaf_free_space(root
, l
));
41 for (i
= 0 ; i
< nr
; i
++) {
42 item
= btrfs_item_nr(l
, i
);
43 btrfs_item_key_to_cpu(l
, &key
, i
);
44 type
= btrfs_key_type(&key
);
45 printk("\titem %d key (%llu %x %llu) itemoff %d itemsize %d\n",
47 (unsigned long long)key
.objectid
, type
,
48 (unsigned long long)key
.offset
,
49 btrfs_item_offset(l
, item
), btrfs_item_size(l
, item
));
51 case BTRFS_INODE_ITEM_KEY
:
52 ii
= btrfs_item_ptr(l
, i
, struct btrfs_inode_item
);
53 printk("\t\tinode generation %llu size %llu mode %o\n",
54 (unsigned long long)btrfs_inode_generation(l
, ii
),
55 (unsigned long long)btrfs_inode_size(l
, ii
),
56 btrfs_inode_mode(l
, ii
));
58 case BTRFS_DIR_ITEM_KEY
:
59 di
= btrfs_item_ptr(l
, i
, struct btrfs_dir_item
);
60 btrfs_dir_item_key_to_cpu(l
, di
, &found_key
);
61 printk("\t\tdir oid %llu flags %u type %u\n",
62 (unsigned long long)found_key
.objectid
,
63 btrfs_dir_flags(l
, di
),
64 btrfs_dir_type(l
, di
));
66 case BTRFS_ROOT_ITEM_KEY
:
67 ri
= btrfs_item_ptr(l
, i
, struct btrfs_root_item
);
68 printk("\t\troot data bytenr %llu refs %u\n",
69 (unsigned long long)btrfs_disk_root_bytenr(l
, ri
),
70 btrfs_disk_root_refs(l
, ri
));
72 case BTRFS_EXTENT_ITEM_KEY
:
73 ei
= btrfs_item_ptr(l
, i
, struct btrfs_extent_item
);
74 printk("\t\textent data refs %u\n",
75 btrfs_extent_refs(l
, ei
));
78 case BTRFS_EXTENT_DATA_KEY
:
79 fi
= btrfs_item_ptr(l
, i
,
80 struct btrfs_file_extent_item
);
81 if (btrfs_file_extent_type(l
, fi
) ==
82 BTRFS_FILE_EXTENT_INLINE
) {
83 printk("\t\tinline extent data size %u\n",
84 btrfs_file_extent_inline_len(l
, item
));
87 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
));
90 printk("\t\textent data offset %llu nr %llu\n",
91 (unsigned long long)btrfs_file_extent_offset(l
, fi
),
92 (unsigned long long)btrfs_file_extent_num_bytes(l
, fi
));
94 case BTRFS_BLOCK_GROUP_ITEM_KEY
:
95 bi
= btrfs_item_ptr(l
, i
,
96 struct btrfs_block_group_item
);
97 printk("\t\tblock group used %llu\n",
98 (unsigned long long)btrfs_disk_block_group_used(l
, bi
));
104 void btrfs_print_tree(struct btrfs_root
*root
, struct extent_buffer
*c
)
108 struct btrfs_key key
;
113 nr
= btrfs_header_nritems(c
);
114 level
= btrfs_header_level(c
);
116 btrfs_print_leaf(root
, c
);
119 printk("node %llu level %d total ptrs %d free spc %u\n",
120 (unsigned long long)btrfs_header_bytenr(c
),
121 btrfs_header_level(c
), nr
,
122 (u32
)BTRFS_NODEPTRS_PER_BLOCK(root
) - nr
);
123 for (i
= 0; i
< nr
; i
++) {
124 btrfs_node_key_to_cpu(c
, &key
, i
);
125 printk("\tkey %d (%llu %u %llu) block %llu\n",
127 (unsigned long long)key
.objectid
,
129 (unsigned long long)key
.offset
,
130 (unsigned long long)btrfs_node_blockptr(c
, i
));
132 for (i
= 0; i
< nr
; i
++) {
133 struct extent_buffer
*next
= read_tree_block(root
,
134 btrfs_node_blockptr(c
, i
),
135 btrfs_level_size(root
, level
- 1));
136 if (btrfs_is_leaf(next
) &&
137 btrfs_header_level(c
) != 1)
139 if (btrfs_header_level(next
) !=
140 btrfs_header_level(c
) - 1)
142 btrfs_print_tree(root
, next
);
143 free_extent_buffer(next
);