static int make_root_dir(struct btrfs_root *root, int mixed)
{
struct btrfs_trans_handle *trans;
struct btrfs_key location;
u64 bytes_used;
u64 chunk_start = 0;
u64 chunk_size = 0;
int ret;
trans = btrfs_start_transaction(root, 1);
bytes_used = btrfs_super_bytes_used(root->fs_info->super_copy);
root->fs_info->system_allocs = 1;
ret = btrfs_make_block_group(trans, root, bytes_used,
BTRFS_BLOCK_GROUP_SYSTEM,
BTRFS_FIRST_CHUNK_TREE_OBJECTID,
0, BTRFS_MKFS_SYSTEM_GROUP_SIZE);
BUG_ON(ret);
if (mixed) {
ret = btrfs_alloc_chunk(trans, root->fs_info->extent_root,
&chunk_start, &chunk_size,
BTRFS_BLOCK_GROUP_METADATA |
BTRFS_BLOCK_GROUP_DATA);
if (ret == -ENOSPC) {
fprintf(stderr,
"no space to alloc data/metadata chunk\n");
goto err;
}
BUG_ON(ret);
ret = btrfs_make_block_group(trans, root, 0,
BTRFS_BLOCK_GROUP_METADATA |
BTRFS_BLOCK_GROUP_DATA,
BTRFS_FIRST_CHUNK_TREE_OBJECTID,
chunk_start, chunk_size);
BUG_ON(ret);
printf("Created a data/metadata chunk of size %llu\n", chunk_size);
} else {
ret = btrfs_alloc_chunk(trans, root->fs_info->extent_root,
&chunk_start, &chunk_size,
BTRFS_BLOCK_GROUP_METADATA);
if (ret == -ENOSPC) {
fprintf(stderr, "no space to alloc metadata chunk\n");
goto err;
}
BUG_ON(ret);
ret = btrfs_make_block_group(trans, root, 0,
BTRFS_BLOCK_GROUP_METADATA,
BTRFS_FIRST_CHUNK_TREE_OBJECTID,
chunk_start, chunk_size);
BUG_ON(ret);
}
root->fs_info->system_allocs = 0;
btrfs_commit_transaction(trans, root);
trans = btrfs_start_transaction(root, 1);
BUG_ON(!trans);
if (!mixed) {
ret = btrfs_alloc_chunk(trans, root->fs_info->extent_root,
&chunk_start, &chunk_size,
BTRFS_BLOCK_GROUP_DATA);
if (ret == -ENOSPC) {
fprintf(stderr, "no space to alloc data chunk\n");
goto err;
}
BUG_ON(ret);
ret = btrfs_make_block_group(trans, root, 0,
BTRFS_BLOCK_GROUP_DATA,
BTRFS_FIRST_CHUNK_TREE_OBJECTID,
chunk_start, chunk_size);
BUG_ON(ret);
}
ret = btrfs_make_root_dir(trans, root->fs_info->tree_root,
BTRFS_ROOT_TREE_DIR_OBJECTID);
if (ret)
goto err;
ret = btrfs_make_root_dir(trans, root, BTRFS_FIRST_FREE_OBJECTID);
if (ret)
goto err;
memcpy(&location, &root->fs_info->fs_root->root_key, sizeof(location));
location.offset = (u64)-1;
ret = btrfs_insert_dir_item(trans, root->fs_info->tree_root,
"default", 7,
btrfs_super_root_dir(root->fs_info->super_copy),
&location, BTRFS_FT_DIR, 0);
if (ret)
goto err;
ret = btrfs_insert_inode_ref(trans, root->fs_info->tree_root,
"default", 7, location.objectid,
BTRFS_ROOT_TREE_DIR_OBJECTID, 0);
if (ret)
goto err;
btrfs_commit_transaction(trans, root);
err:
return ret;
}
static void dump_superblock(struct btrfs_super_block *sb, int full)
{
int i;
char *s, buf[BTRFS_UUID_UNPARSED_SIZE];
u8 *p;
printf("csum\t\t\t0x");
for (i = 0, p = sb->csum; i < btrfs_super_csum_size(sb); i++)
printf("%02x", p[i]);
if (check_csum_sblock(sb, btrfs_super_csum_size(sb)))
printf(" [match]");
else
printf(" [DON'T MATCH]");
putchar('\n');
printf("bytenr\t\t\t%llu\n",
(unsigned long long)btrfs_super_bytenr(sb));
printf("flags\t\t\t0x%llx\n",
(unsigned long long)btrfs_super_flags(sb));
print_readable_super_flag(btrfs_super_flags(sb));
printf("magic\t\t\t");
s = (char *) &sb->magic;
for (i = 0; i < 8; i++)
putchar(isprint(s[i]) ? s[i] : '.');
if (btrfs_super_magic(sb) == BTRFS_MAGIC)
printf(" [match]\n");
else
printf(" [DON'T MATCH]\n");
uuid_unparse(sb->fsid, buf);
printf("fsid\t\t\t%s\n", buf);
printf("label\t\t\t");
s = sb->label;
for (i = 0; i < BTRFS_LABEL_SIZE && s[i]; i++)
putchar(isprint(s[i]) ? s[i] : '.');
putchar('\n');
printf("generation\t\t%llu\n",
(unsigned long long)btrfs_super_generation(sb));
printf("root\t\t\t%llu\n", (unsigned long long)btrfs_super_root(sb));
printf("sys_array_size\t\t%llu\n",
(unsigned long long)btrfs_super_sys_array_size(sb));
printf("chunk_root_generation\t%llu\n",
(unsigned long long)btrfs_super_chunk_root_generation(sb));
printf("root_level\t\t%llu\n",
(unsigned long long)btrfs_super_root_level(sb));
printf("chunk_root\t\t%llu\n",
(unsigned long long)btrfs_super_chunk_root(sb));
printf("chunk_root_level\t%llu\n",
(unsigned long long)btrfs_super_chunk_root_level(sb));
printf("log_root\t\t%llu\n",
(unsigned long long)btrfs_super_log_root(sb));
printf("log_root_transid\t%llu\n",
(unsigned long long)btrfs_super_log_root_transid(sb));
printf("log_root_level\t\t%llu\n",
(unsigned long long)btrfs_super_log_root_level(sb));
printf("total_bytes\t\t%llu\n",
(unsigned long long)btrfs_super_total_bytes(sb));
printf("bytes_used\t\t%llu\n",
(unsigned long long)btrfs_super_bytes_used(sb));
printf("sectorsize\t\t%llu\n",
(unsigned long long)btrfs_super_sectorsize(sb));
printf("nodesize\t\t%llu\n",
(unsigned long long)btrfs_super_nodesize(sb));
printf("leafsize\t\t%llu\n",
(unsigned long long)btrfs_super_leafsize(sb));
printf("stripesize\t\t%llu\n",
(unsigned long long)btrfs_super_stripesize(sb));
printf("root_dir\t\t%llu\n",
(unsigned long long)btrfs_super_root_dir(sb));
printf("num_devices\t\t%llu\n",
(unsigned long long)btrfs_super_num_devices(sb));
printf("compat_flags\t\t0x%llx\n",
(unsigned long long)btrfs_super_compat_flags(sb));
printf("compat_ro_flags\t\t0x%llx\n",
(unsigned long long)btrfs_super_compat_ro_flags(sb));
printf("incompat_flags\t\t0x%llx\n",
(unsigned long long)btrfs_super_incompat_flags(sb));
print_readable_incompat_flag(btrfs_super_incompat_flags(sb));
printf("csum_type\t\t%llu\n",
(unsigned long long)btrfs_super_csum_type(sb));
printf("csum_size\t\t%llu\n",
(unsigned long long)btrfs_super_csum_size(sb));
printf("cache_generation\t%llu\n",
(unsigned long long)btrfs_super_cache_generation(sb));
printf("uuid_tree_generation\t%llu\n",
(unsigned long long)btrfs_super_uuid_tree_generation(sb));
uuid_unparse(sb->dev_item.uuid, buf);
printf("dev_item.uuid\t\t%s\n", buf);
uuid_unparse(sb->dev_item.fsid, buf);
printf("dev_item.fsid\t\t%s %s\n", buf,
!memcmp(sb->dev_item.fsid, sb->fsid, BTRFS_FSID_SIZE) ?
"[match]" : "[DON'T MATCH]");
printf("dev_item.type\t\t%llu\n", (unsigned long long)
btrfs_stack_device_type(&sb->dev_item));
printf("dev_item.total_bytes\t%llu\n", (unsigned long long)
btrfs_stack_device_total_bytes(&sb->dev_item));
printf("dev_item.bytes_used\t%llu\n", (unsigned long long)
btrfs_stack_device_bytes_used(&sb->dev_item));
printf("dev_item.io_align\t%u\n", (unsigned int)
btrfs_stack_device_io_align(&sb->dev_item));
printf("dev_item.io_width\t%u\n", (unsigned int)
btrfs_stack_device_io_width(&sb->dev_item));
printf("dev_item.sector_size\t%u\n", (unsigned int)
btrfs_stack_device_sector_size(&sb->dev_item));
printf("dev_item.devid\t\t%llu\n",
btrfs_stack_device_id(&sb->dev_item));
printf("dev_item.dev_group\t%u\n", (unsigned int)
btrfs_stack_device_group(&sb->dev_item));
printf("dev_item.seek_speed\t%u\n", (unsigned int)
btrfs_stack_device_seek_speed(&sb->dev_item));
printf("dev_item.bandwidth\t%u\n", (unsigned int)
btrfs_stack_device_bandwidth(&sb->dev_item));
printf("dev_item.generation\t%llu\n", (unsigned long long)
btrfs_stack_device_generation(&sb->dev_item));
if (full) {
printf("sys_chunk_array[%d]:\n", BTRFS_SYSTEM_CHUNK_ARRAY_SIZE);
print_sys_chunk_array(sb);
printf("backup_roots[%d]:\n", BTRFS_NUM_BACKUP_ROOTS);
print_backup_roots(sb);
}
}
static void dump_superblock(struct btrfs_super_block *sb, int full)
{
int i;
char *s, buf[BTRFS_UUID_UNPARSED_SIZE];
u8 *p;
u32 csum_size;
u16 csum_type;
bool metadata_uuid_present = (btrfs_super_incompat_flags(sb) &
BTRFS_FEATURE_INCOMPAT_METADATA_UUID);
int cmp_res = 0;
csum_type = btrfs_super_csum_type(sb);
csum_size = BTRFS_CSUM_SIZE;
printf("csum_type\t\t%hu (", csum_type);
if (csum_type >= ARRAY_SIZE(btrfs_csum_sizes)) {
printf("INVALID");
} else {
if (csum_type == BTRFS_CSUM_TYPE_CRC32) {
printf("crc32c");
csum_size = btrfs_csum_sizes[csum_type];
} else {
printf("unknown");
}
}
printf(")\n");
printf("csum_size\t\t%llu\n", (unsigned long long)csum_size);
printf("csum\t\t\t0x");
for (i = 0, p = sb->csum; i < csum_size; i++)
printf("%02x", p[i]);
if (csum_type != BTRFS_CSUM_TYPE_CRC32 ||
csum_size != btrfs_csum_sizes[BTRFS_CSUM_TYPE_CRC32])
printf(" [UNKNOWN CSUM TYPE OR SIZE]");
else if (check_csum_sblock(sb, csum_size))
printf(" [match]");
else
printf(" [DON'T MATCH]");
putchar('\n');
printf("bytenr\t\t\t%llu\n",
(unsigned long long)btrfs_super_bytenr(sb));
printf("flags\t\t\t0x%llx\n",
(unsigned long long)btrfs_super_flags(sb));
print_readable_super_flag(btrfs_super_flags(sb));
printf("magic\t\t\t");
s = (char *) &sb->magic;
for (i = 0; i < 8; i++)
putchar(isprint(s[i]) ? s[i] : '.');
if (btrfs_super_magic(sb) == BTRFS_MAGIC)
printf(" [match]\n");
else
printf(" [DON'T MATCH]\n");
uuid_unparse(sb->fsid, buf);
printf("fsid\t\t\t%s\n", buf);
if (metadata_uuid_present) {
uuid_unparse(sb->metadata_uuid, buf);
printf("metadata_uuid\t\t%s\n", buf);
} else {
printf("metadata_uuid\t\t%s\n", buf);
}
printf("label\t\t\t");
s = sb->label;
for (i = 0; i < BTRFS_LABEL_SIZE && s[i]; i++)
putchar(isprint(s[i]) ? s[i] : '.');
putchar('\n');
printf("generation\t\t%llu\n",
(unsigned long long)btrfs_super_generation(sb));
printf("root\t\t\t%llu\n", (unsigned long long)btrfs_super_root(sb));
printf("sys_array_size\t\t%llu\n",
(unsigned long long)btrfs_super_sys_array_size(sb));
printf("chunk_root_generation\t%llu\n",
(unsigned long long)btrfs_super_chunk_root_generation(sb));
printf("root_level\t\t%llu\n",
(unsigned long long)btrfs_super_root_level(sb));
printf("chunk_root\t\t%llu\n",
(unsigned long long)btrfs_super_chunk_root(sb));
printf("chunk_root_level\t%llu\n",
(unsigned long long)btrfs_super_chunk_root_level(sb));
printf("log_root\t\t%llu\n",
(unsigned long long)btrfs_super_log_root(sb));
printf("log_root_transid\t%llu\n",
(unsigned long long)btrfs_super_log_root_transid(sb));
printf("log_root_level\t\t%llu\n",
(unsigned long long)btrfs_super_log_root_level(sb));
printf("total_bytes\t\t%llu\n",
(unsigned long long)btrfs_super_total_bytes(sb));
printf("bytes_used\t\t%llu\n",
(unsigned long long)btrfs_super_bytes_used(sb));
printf("sectorsize\t\t%llu\n",
(unsigned long long)btrfs_super_sectorsize(sb));
printf("nodesize\t\t%llu\n",
(unsigned long long)btrfs_super_nodesize(sb));
printf("leafsize (deprecated)\t%u\n",
le32_to_cpu(sb->__unused_leafsize));
printf("stripesize\t\t%llu\n",
(unsigned long long)btrfs_super_stripesize(sb));
printf("root_dir\t\t%llu\n",
(unsigned long long)btrfs_super_root_dir(sb));
printf("num_devices\t\t%llu\n",
(unsigned long long)btrfs_super_num_devices(sb));
printf("compat_flags\t\t0x%llx\n",
(unsigned long long)btrfs_super_compat_flags(sb));
printf("compat_ro_flags\t\t0x%llx\n",
(unsigned long long)btrfs_super_compat_ro_flags(sb));
print_readable_compat_ro_flag(btrfs_super_compat_ro_flags(sb));
printf("incompat_flags\t\t0x%llx\n",
(unsigned long long)btrfs_super_incompat_flags(sb));
print_readable_incompat_flag(btrfs_super_incompat_flags(sb));
printf("cache_generation\t%llu\n",
(unsigned long long)btrfs_super_cache_generation(sb));
printf("uuid_tree_generation\t%llu\n",
(unsigned long long)btrfs_super_uuid_tree_generation(sb));
uuid_unparse(sb->dev_item.uuid, buf);
printf("dev_item.uuid\t\t%s\n", buf);
uuid_unparse(sb->dev_item.fsid, buf);
if (metadata_uuid_present) {
cmp_res = !memcmp(sb->dev_item.fsid, sb->metadata_uuid,
BTRFS_FSID_SIZE);
} else {
cmp_res = !memcmp(sb->dev_item.fsid, sb->fsid, BTRFS_FSID_SIZE);
}
printf("dev_item.fsid\t\t%s %s\n", buf,
cmp_res ? "[match]" : "[DON'T MATCH]");
printf("dev_item.type\t\t%llu\n", (unsigned long long)
btrfs_stack_device_type(&sb->dev_item));
printf("dev_item.total_bytes\t%llu\n", (unsigned long long)
btrfs_stack_device_total_bytes(&sb->dev_item));
printf("dev_item.bytes_used\t%llu\n", (unsigned long long)
btrfs_stack_device_bytes_used(&sb->dev_item));
printf("dev_item.io_align\t%u\n", (unsigned int)
btrfs_stack_device_io_align(&sb->dev_item));
printf("dev_item.io_width\t%u\n", (unsigned int)
btrfs_stack_device_io_width(&sb->dev_item));
printf("dev_item.sector_size\t%u\n", (unsigned int)
btrfs_stack_device_sector_size(&sb->dev_item));
printf("dev_item.devid\t\t%llu\n",
btrfs_stack_device_id(&sb->dev_item));
printf("dev_item.dev_group\t%u\n", (unsigned int)
btrfs_stack_device_group(&sb->dev_item));
printf("dev_item.seek_speed\t%u\n", (unsigned int)
btrfs_stack_device_seek_speed(&sb->dev_item));
printf("dev_item.bandwidth\t%u\n", (unsigned int)
btrfs_stack_device_bandwidth(&sb->dev_item));
printf("dev_item.generation\t%llu\n", (unsigned long long)
btrfs_stack_device_generation(&sb->dev_item));
if (full) {
printf("sys_chunk_array[%d]:\n", BTRFS_SYSTEM_CHUNK_ARRAY_SIZE);
print_sys_chunk_array(sb);
printf("backup_roots[%d]:\n", BTRFS_NUM_BACKUP_ROOTS);
print_backup_roots(sb);
}
}
