data vs metadata flag for block groups
[platform/upstream/btrfs-progs.git] / print-tree.c
1 #include <stdio.h>
2 #include <stdlib.h>
3 #include "kerncompat.h"
4 #include "radix-tree.h"
5 #include "ctree.h"
6 #include "disk-io.h"
7
8 static int print_dir_item(struct btrfs_item *item,
9                           struct btrfs_dir_item *di)
10 {
11         u32 total;
12         u32 cur = 0;
13         u32 len;
14         total = btrfs_item_size(item);
15         while(cur < total) {
16                 printf("\t\tdir index %Lu flags %u type %u\n",
17                         btrfs_disk_key_objectid(&di->location),
18                         btrfs_dir_flags(di),
19                         btrfs_dir_type(di));
20                 printf("\t\tname %.*s\n",
21                        btrfs_dir_name_len(di),(char *)(di + 1));
22                 len = sizeof(*di) + btrfs_dir_name_len(di);
23                 di = (struct btrfs_dir_item *)((char *)di + len);
24                 cur += len;
25         }
26         return 0;
27 }
28 void btrfs_print_leaf(struct btrfs_root *root, struct btrfs_leaf *l)
29 {
30         int i;
31         u32 nr = btrfs_header_nritems(&l->header);
32         struct btrfs_item *item;
33         struct btrfs_extent_item *ei;
34         struct btrfs_root_item *ri;
35         struct btrfs_dir_item *di;
36         struct btrfs_device_item *devi;
37         struct btrfs_inode_item *ii;
38         struct btrfs_file_extent_item *fi;
39         struct btrfs_csum_item *ci;
40         struct btrfs_block_group_item *bi;
41         u32 type;
42
43         printf("leaf %Lu ptrs %d free space %d generation %Lu owner %Lu\n",
44                 btrfs_header_blocknr(&l->header), nr,
45                 btrfs_leaf_free_space(root, l),
46                 btrfs_header_generation(&l->header),
47                 btrfs_header_owner(&l->header));
48         fflush(stdout);
49         for (i = 0 ; i < nr ; i++) {
50                 item = l->items + i;
51                 type = btrfs_disk_key_type(&item->key);
52                 printf("\titem %d key (%Lu %x %Lu) itemoff %d itemsize %d\n",
53                         i,
54                         btrfs_disk_key_objectid(&item->key),
55                         btrfs_disk_key_flags(&item->key),
56                         btrfs_disk_key_offset(&item->key),
57                         btrfs_item_offset(item),
58                         btrfs_item_size(item));
59                 switch (type) {
60                 case BTRFS_INODE_ITEM_KEY:
61                         ii = btrfs_item_ptr(l, i, struct btrfs_inode_item);
62                         printf("\t\tinode generation %Lu size %Lu block group %Lu mode %o\n",
63                                btrfs_inode_generation(ii),
64                                btrfs_inode_size(ii),
65                                btrfs_inode_block_group(ii),
66                                btrfs_inode_mode(ii));
67                         break;
68                 case BTRFS_DIR_ITEM_KEY:
69                         di = btrfs_item_ptr(l, i, struct btrfs_dir_item);
70                         print_dir_item(l->items + i, di);
71                         break;
72                 case BTRFS_DIR_INDEX_KEY:
73                         di = btrfs_item_ptr(l, i, struct btrfs_dir_item);
74                         print_dir_item(l->items + i, di);
75                         break;
76                 case BTRFS_ROOT_ITEM_KEY:
77                         ri = btrfs_item_ptr(l, i, struct btrfs_root_item);
78                         printf("\t\troot data blocknr %Lu dirid %Lu refs %u\n",
79                                 btrfs_root_blocknr(ri),
80                                 btrfs_root_dirid(ri),
81                                 btrfs_root_refs(ri));
82                         break;
83                 case BTRFS_EXTENT_ITEM_KEY:
84                         ei = btrfs_item_ptr(l, i, struct btrfs_extent_item);
85                         printf("\t\textent data refs %u owner %Lu\n",
86                                 btrfs_extent_refs(ei),
87                                 btrfs_extent_owner(ei));
88                         break;
89                 case BTRFS_CSUM_ITEM_KEY:
90                         ci = btrfs_item_ptr(l, i,
91                                             struct btrfs_csum_item);
92                         printf("\t\tcsum item\n");
93                         break;
94                 case BTRFS_EXTENT_DATA_KEY:
95                         fi = btrfs_item_ptr(l, i,
96                                             struct btrfs_file_extent_item);
97                         if (btrfs_file_extent_type(fi) ==
98                             BTRFS_FILE_EXTENT_INLINE) {
99                                 printf("\t\tinline extent data size %u\n",
100                                    btrfs_file_extent_inline_len(l->items + i));
101                                 break;
102                         }
103                         printf("\t\textent data disk block %Lu nr %Lu\n",
104                                btrfs_file_extent_disk_blocknr(fi),
105                                btrfs_file_extent_disk_num_blocks(fi));
106                         printf("\t\textent data offset %Lu nr %Lu\n",
107                                btrfs_file_extent_offset(fi),
108                                btrfs_file_extent_num_blocks(fi));
109                         break;
110                 case BTRFS_BLOCK_GROUP_ITEM_KEY:
111                         bi = btrfs_item_ptr(l, i,
112                                             struct btrfs_block_group_item);
113                         printf("\t\tblock group used %Lu flags %x\n",
114                                btrfs_block_group_used(bi), bi->flags);
115                         break;
116                 case BTRFS_DEV_ITEM_KEY:
117                         devi = btrfs_item_ptr(l, i, struct btrfs_device_item);
118                         printf("\t\tdev id %Lu namelen %u name %.*s\n",
119                                btrfs_device_id(devi),
120                                 btrfs_device_pathlen(devi),
121                                 btrfs_device_pathlen(devi),
122                                 (char *)(devi + 1));
123                         break;
124                 case BTRFS_STRING_ITEM_KEY:
125                         printf("\t\titem data %.*s\n", btrfs_item_size(item),
126                                 btrfs_leaf_data(l) + btrfs_item_offset(item));
127                         break;
128                 };
129                 fflush(stdout);
130         }
131 }
132 void btrfs_print_tree(struct btrfs_root *root, struct btrfs_buffer *t)
133 {
134         int i;
135         u32 nr;
136         struct btrfs_node *c;
137
138         if (!t)
139                 return;
140         c = &t->node;
141         nr = btrfs_header_nritems(&c->header);
142         if (btrfs_is_leaf(c)) {
143                 btrfs_print_leaf(root, (struct btrfs_leaf *)c);
144                 return;
145         }
146         printf("node %Lu level %d ptrs %d free %u generation %Lu owner %Lu\n",
147                t->blocknr,
148                 btrfs_header_level(&c->header), nr,
149                 (u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr,
150                 btrfs_header_generation(&c->header),
151                 btrfs_header_owner(&c->header));
152         fflush(stdout);
153         for (i = 0; i < nr; i++) {
154                 printf("\tkey %d (%Lu %x %Lu) block %Lu\n",
155                        i,
156                        c->ptrs[i].key.objectid,
157                        c->ptrs[i].key.flags,
158                        c->ptrs[i].key.offset,
159                        btrfs_node_blockptr(c, i));
160                 fflush(stdout);
161         }
162         for (i = 0; i < nr; i++) {
163                 struct btrfs_buffer *next_buf = read_tree_block(root,
164                                                 btrfs_node_blockptr(c, i));
165                 struct btrfs_node *next = &next_buf->node;
166                 if (btrfs_is_leaf(next) &&
167                     btrfs_header_level(&c->header) != 1)
168                         BUG();
169                 if (btrfs_header_level(&next->header) !=
170                         btrfs_header_level(&c->header) - 1)
171                         BUG();
172                 btrfs_print_tree(root, next_buf);
173                 btrfs_block_release(root, next_buf);
174         }
175 }
176