]>
git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - fs/btrfs/print-tree.c
1 #include <linux/module.h>
5 void btrfs_print_leaf(struct btrfs_root
*root
, struct btrfs_leaf
*l
)
8 u32 nr
= btrfs_header_nritems(&l
->header
);
9 struct btrfs_item
*item
;
10 struct btrfs_extent_item
*ei
;
11 struct btrfs_root_item
*ri
;
12 struct btrfs_dir_item
*di
;
13 struct btrfs_inode_map_item
*mi
;
14 struct btrfs_inode_item
*ii
;
17 printk("leaf %Lu total ptrs %d free space %d\n",
18 btrfs_header_blocknr(&l
->header
), nr
,
19 btrfs_leaf_free_space(root
, l
));
20 for (i
= 0 ; i
< nr
; i
++) {
22 type
= btrfs_disk_key_type(&item
->key
);
23 printk("\titem %d key (%Lu %u %Lu) itemoff %d itemsize %d\n",
25 btrfs_disk_key_objectid(&item
->key
),
26 btrfs_disk_key_flags(&item
->key
),
27 btrfs_disk_key_offset(&item
->key
),
28 btrfs_item_offset(item
),
29 btrfs_item_size(item
));
31 case BTRFS_INODE_ITEM_KEY
:
32 ii
= btrfs_item_ptr(l
, i
, struct btrfs_inode_item
);
33 printk("\t\tinode generation %Lu size %Lu mode %o\n",
34 btrfs_inode_generation(ii
),
36 btrfs_inode_mode(ii
));
38 case BTRFS_DIR_ITEM_KEY
:
39 di
= btrfs_item_ptr(l
, i
, struct btrfs_dir_item
);
40 printk("\t\tdir oid %Lu flags %u type %u\n",
41 btrfs_dir_objectid(di
),
44 printk("\t\tname %.*s\n",
45 btrfs_dir_name_len(di
),(char *)(di
+ 1));
47 case BTRFS_ROOT_ITEM_KEY
:
48 ri
= btrfs_item_ptr(l
, i
, struct btrfs_root_item
);
49 printk("\t\troot data blocknr %Lu refs %u\n",
50 btrfs_root_blocknr(ri
), btrfs_root_refs(ri
));
52 case BTRFS_EXTENT_ITEM_KEY
:
53 ei
= btrfs_item_ptr(l
, i
, struct btrfs_extent_item
);
54 printk("\t\textent data refs %u owner %Lu\n",
55 btrfs_extent_refs(ei
), btrfs_extent_owner(ei
));
57 case BTRFS_INODE_MAP_ITEM_KEY
:
58 mi
= btrfs_item_ptr(l
, i
, struct btrfs_inode_map_item
);
59 printk("\t\tinode map key %Lu %u %Lu\n",
60 btrfs_disk_key_objectid(&mi
->key
),
61 btrfs_disk_key_flags(&mi
->key
),
62 btrfs_disk_key_offset(&mi
->key
));
64 case BTRFS_STRING_ITEM_KEY
:
65 printk("\t\titem data %.*s\n", btrfs_item_size(item
),
66 btrfs_leaf_data(l
) + btrfs_item_offset(item
));
72 void btrfs_print_tree(struct btrfs_root
*root
, struct buffer_head
*t
)
80 c
= btrfs_buffer_node(t
);
81 nr
= btrfs_header_nritems(&c
->header
);
82 if (btrfs_is_leaf(c
)) {
83 btrfs_print_leaf(root
, (struct btrfs_leaf
*)c
);
86 printk("node %Lu level %d total ptrs %d free spc %u\n",
87 btrfs_header_blocknr(&c
->header
),
88 btrfs_header_level(&c
->header
), nr
,
89 (u32
)BTRFS_NODEPTRS_PER_BLOCK(root
) - nr
);
90 for (i
= 0; i
< nr
; i
++) {
91 printk("\tkey %d (%Lu %u %Lu) block %Lu\n",
93 c
->ptrs
[i
].key
.objectid
,
95 c
->ptrs
[i
].key
.offset
,
96 btrfs_node_blockptr(c
, i
));
98 for (i
= 0; i
< nr
; i
++) {
99 struct buffer_head
*next_buf
= read_tree_block(root
,
100 btrfs_node_blockptr(c
, i
));
101 struct btrfs_node
*next
= btrfs_buffer_node(next_buf
);
102 if (btrfs_is_leaf(next
) &&
103 btrfs_header_level(&c
->header
) != 1)
105 if (btrfs_header_level(&next
->header
) !=
106 btrfs_header_level(&c
->header
) - 1)
108 btrfs_print_tree(root
, next_buf
);
109 btrfs_block_release(root
, next_buf
);