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 static void print_chunk(struct extent_buffer
*eb
, struct btrfs_chunk
*chunk
)
25 int num_stripes
= btrfs_chunk_num_stripes(eb
, chunk
);
27 printk("\t\tchunk length %llu owner %llu type %llu num_stripes %d\n",
28 (unsigned long long)btrfs_chunk_length(eb
, chunk
),
29 (unsigned long long)btrfs_chunk_owner(eb
, chunk
),
30 (unsigned long long)btrfs_chunk_type(eb
, chunk
),
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
));
38 static void print_dev_item(struct extent_buffer
*eb
,
39 struct btrfs_dev_item
*dev_item
)
41 printk("\t\tdev item devid %llu "
42 "total_bytes %llu bytes used %Lu\n",
43 (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
));
47 void btrfs_print_leaf(struct btrfs_root
*root
, struct extent_buffer
*l
)
50 u32 nr
= btrfs_header_nritems(l
);
51 struct btrfs_item
*item
;
52 struct btrfs_extent_item
*ei
;
53 struct btrfs_root_item
*ri
;
54 struct btrfs_dir_item
*di
;
55 struct btrfs_inode_item
*ii
;
56 struct btrfs_block_group_item
*bi
;
57 struct btrfs_file_extent_item
*fi
;
59 struct btrfs_key found_key
;
60 struct btrfs_extent_ref
*ref
;
61 struct btrfs_dev_extent
*dev_extent
;
64 printk("leaf %llu total ptrs %d free space %d\n",
65 (unsigned long long)btrfs_header_bytenr(l
), nr
,
66 btrfs_leaf_free_space(root
, l
));
67 for (i
= 0 ; i
< nr
; i
++) {
68 item
= btrfs_item_nr(l
, i
);
69 btrfs_item_key_to_cpu(l
, &key
, i
);
70 type
= btrfs_key_type(&key
);
71 printk("\titem %d key (%llu %x %llu) itemoff %d itemsize %d\n",
73 (unsigned long long)key
.objectid
, type
,
74 (unsigned long long)key
.offset
,
75 btrfs_item_offset(l
, item
), btrfs_item_size(l
, item
));
77 case BTRFS_INODE_ITEM_KEY
:
78 ii
= btrfs_item_ptr(l
, i
, struct btrfs_inode_item
);
79 printk("\t\tinode generation %llu size %llu mode %o\n",
80 (unsigned long long)btrfs_inode_generation(l
, ii
),
81 (unsigned long long)btrfs_inode_size(l
, ii
),
82 btrfs_inode_mode(l
, ii
));
84 case BTRFS_DIR_ITEM_KEY
:
85 di
= btrfs_item_ptr(l
, i
, struct btrfs_dir_item
);
86 btrfs_dir_item_key_to_cpu(l
, di
, &found_key
);
87 printk("\t\tdir oid %llu type %u\n",
88 (unsigned long long)found_key
.objectid
,
89 btrfs_dir_type(l
, di
));
91 case BTRFS_ROOT_ITEM_KEY
:
92 ri
= btrfs_item_ptr(l
, i
, struct btrfs_root_item
);
93 printk("\t\troot data bytenr %llu refs %u\n",
94 (unsigned long long)btrfs_disk_root_bytenr(l
, ri
),
95 btrfs_disk_root_refs(l
, ri
));
97 case BTRFS_EXTENT_ITEM_KEY
:
98 ei
= btrfs_item_ptr(l
, i
, struct btrfs_extent_item
);
99 printk("\t\textent data refs %u\n",
100 btrfs_extent_refs(l
, ei
));
102 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
));
112 case BTRFS_EXTENT_DATA_KEY
:
113 fi
= btrfs_item_ptr(l
, i
,
114 struct btrfs_file_extent_item
);
115 if (btrfs_file_extent_type(l
, fi
) ==
116 BTRFS_FILE_EXTENT_INLINE
) {
117 printk("\t\tinline extent data size %u\n",
118 btrfs_file_extent_inline_len(l
, item
));
121 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
));
124 printk("\t\textent data offset %llu nr %llu\n",
125 (unsigned long long)btrfs_file_extent_offset(l
, fi
),
126 (unsigned long long)btrfs_file_extent_num_bytes(l
, fi
));
128 case BTRFS_BLOCK_GROUP_ITEM_KEY
:
129 bi
= btrfs_item_ptr(l
, i
,
130 struct btrfs_block_group_item
);
131 printk("\t\tblock group used %llu\n",
132 (unsigned long long)btrfs_disk_block_group_used(l
, bi
));
134 case BTRFS_CHUNK_ITEM_KEY
:
135 print_chunk(l
, btrfs_item_ptr(l
, i
, struct btrfs_chunk
));
137 case BTRFS_DEV_ITEM_KEY
:
138 print_dev_item(l
, btrfs_item_ptr(l
, i
,
139 struct btrfs_dev_item
));
141 case BTRFS_DEV_EXTENT_KEY
:
142 dev_extent
= btrfs_item_ptr(l
, i
,
143 struct btrfs_dev_extent
);
144 printk("\t\tdev extent chunk_tree %llu\n"
145 "\t\tchunk objectid %llu chunk offset %llu "
148 btrfs_dev_extent_chunk_tree(l
, dev_extent
),
150 btrfs_dev_extent_chunk_objectid(l
, dev_extent
),
152 btrfs_dev_extent_chunk_offset(l
, dev_extent
),
154 btrfs_dev_extent_length(l
, dev_extent
));
159 void btrfs_print_tree(struct btrfs_root
*root
, struct extent_buffer
*c
)
162 struct btrfs_key key
;
167 nr
= btrfs_header_nritems(c
);
168 level
= btrfs_header_level(c
);
170 btrfs_print_leaf(root
, c
);
173 printk("node %llu level %d total ptrs %d free spc %u\n",
174 (unsigned long long)btrfs_header_bytenr(c
),
175 btrfs_header_level(c
), nr
,
176 (u32
)BTRFS_NODEPTRS_PER_BLOCK(root
) - nr
);
177 for (i
= 0; i
< nr
; i
++) {
178 btrfs_node_key_to_cpu(c
, &key
, i
);
179 printk("\tkey %d (%llu %u %llu) block %llu\n",
181 (unsigned long long)key
.objectid
,
183 (unsigned long long)key
.offset
,
184 (unsigned long long)btrfs_node_blockptr(c
, i
));
186 for (i
= 0; i
< nr
; i
++) {
187 struct extent_buffer
*next
= read_tree_block(root
,
188 btrfs_node_blockptr(c
, i
),
189 btrfs_level_size(root
, level
- 1),
190 btrfs_node_ptr_generation(c
, i
));
191 if (btrfs_is_leaf(next
) &&
192 btrfs_header_level(c
) != 1)
194 if (btrfs_header_level(next
) !=
195 btrfs_header_level(c
) - 1)
197 btrfs_print_tree(root
, next
);
198 free_extent_buffer(next
);