+ struct btrfs_root_item root_item;
+ int len;
+ char uuid_str[BTRFS_UUID_UNPARSED_SIZE];
+ char flags_str[32] = {0};
+ struct btrfs_key drop_key;
+
+ ri = btrfs_item_ptr(leaf, slot, struct btrfs_root_item);
+ len = btrfs_item_size_nr(leaf, slot);
+
+ memset(&root_item, 0, sizeof(root_item));
+ read_extent_buffer(leaf, &root_item, (unsigned long)ri, len);
+ root_flags_to_str(btrfs_root_flags(&root_item), flags_str);
+
+ printf("\t\tgeneration %llu root_dirid %llu bytenr %llu level %hhu refs %u\n",
+ (unsigned long long)btrfs_root_generation(&root_item),
+ (unsigned long long)btrfs_root_dirid(&root_item),
+ (unsigned long long)btrfs_root_bytenr(&root_item),
+ btrfs_root_level(&root_item),
+ btrfs_root_refs(&root_item));
+ printf("\t\tlastsnap %llu byte_limit %llu bytes_used %llu flags 0x%llx(%s)\n",
+ (unsigned long long)btrfs_root_last_snapshot(&root_item),
+ (unsigned long long)btrfs_root_limit(&root_item),
+ (unsigned long long)btrfs_root_used(&root_item),
+ (unsigned long long)btrfs_root_flags(&root_item),
+ flags_str);
+
+ if (root_item.generation == root_item.generation_v2) {
+ uuid_unparse(root_item.uuid, uuid_str);
+ printf("\t\tuuid %s\n", uuid_str);
+ if (!empty_uuid(root_item.parent_uuid)) {
+ uuid_unparse(root_item.parent_uuid, uuid_str);
+ printf("\t\tparent_uuid %s\n", uuid_str);
+ }
+ if (!empty_uuid(root_item.received_uuid)) {
+ uuid_unparse(root_item.received_uuid, uuid_str);
+ printf("\t\treceived_uuid %s\n", uuid_str);
+ }
+ if (root_item.ctransid) {
+ printf("\t\tctransid %llu otransid %llu stransid %llu rtransid %llu\n",
+ btrfs_root_ctransid(&root_item),
+ btrfs_root_otransid(&root_item),
+ btrfs_root_stransid(&root_item),
+ btrfs_root_rtransid(&root_item));
+ }
+ if (btrfs_timespec_sec(leaf, btrfs_root_ctime(ri)))
+ print_timespec(leaf, btrfs_root_ctime(ri),
+ "\t\tctime ", "\n");
+ if (btrfs_timespec_sec(leaf, btrfs_root_otime(ri)))
+ print_timespec(leaf, btrfs_root_otime(ri),
+ "\t\totime ", "\n");
+ if (btrfs_timespec_sec(leaf, btrfs_root_stime(ri)))
+ print_timespec(leaf, btrfs_root_stime(ri),
+ "\t\tstime ", "\n");
+ if (btrfs_timespec_sec(leaf, btrfs_root_rtime(ri)))
+ print_timespec(leaf, btrfs_root_rtime(ri),
+ "\t\trtime ", "\n");
+ }
+
+ btrfs_disk_key_to_cpu(&drop_key, &root_item.drop_progress);
+ printf("\t\tdrop ");
+ btrfs_print_key(&root_item.drop_progress);
+ printf(" level %hhu\n", root_item.drop_level);
+}
+
+static void print_free_space_header(struct extent_buffer *leaf, int slot)
+{
+ struct btrfs_free_space_header *header;
+ struct btrfs_disk_key location;
+
+ header = btrfs_item_ptr(leaf, slot, struct btrfs_free_space_header);
+ btrfs_free_space_key(leaf, header, &location);
+ printf("\t\tlocation ");
+ btrfs_print_key(&location);
+ printf("\n");
+ printf("\t\tcache generation %llu entries %llu bitmaps %llu\n",
+ (unsigned long long)btrfs_free_space_generation(leaf, header),
+ (unsigned long long)btrfs_free_space_entries(leaf, header),
+ (unsigned long long)btrfs_free_space_bitmaps(leaf, header));
+}
+
+void print_key_type(FILE *stream, u64 objectid, u8 type)
+{
+ static const char* key_to_str[256] = {
+ [BTRFS_INODE_ITEM_KEY] = "INODE_ITEM",
+ [BTRFS_INODE_REF_KEY] = "INODE_REF",
+ [BTRFS_INODE_EXTREF_KEY] = "INODE_EXTREF",
+ [BTRFS_DIR_ITEM_KEY] = "DIR_ITEM",
+ [BTRFS_DIR_INDEX_KEY] = "DIR_INDEX",
+ [BTRFS_DIR_LOG_ITEM_KEY] = "DIR_LOG_ITEM",
+ [BTRFS_DIR_LOG_INDEX_KEY] = "DIR_LOG_INDEX",
+ [BTRFS_XATTR_ITEM_KEY] = "XATTR_ITEM",
+ [BTRFS_ORPHAN_ITEM_KEY] = "ORPHAN_ITEM",
+ [BTRFS_ROOT_ITEM_KEY] = "ROOT_ITEM",
+ [BTRFS_ROOT_REF_KEY] = "ROOT_REF",
+ [BTRFS_ROOT_BACKREF_KEY] = "ROOT_BACKREF",
+ [BTRFS_EXTENT_ITEM_KEY] = "EXTENT_ITEM",
+ [BTRFS_METADATA_ITEM_KEY] = "METADATA_ITEM",
+ [BTRFS_TREE_BLOCK_REF_KEY] = "TREE_BLOCK_REF",
+ [BTRFS_SHARED_BLOCK_REF_KEY] = "SHARED_BLOCK_REF",
+ [BTRFS_EXTENT_DATA_REF_KEY] = "EXTENT_DATA_REF",
+ [BTRFS_SHARED_DATA_REF_KEY] = "SHARED_DATA_REF",
+ [BTRFS_EXTENT_REF_V0_KEY] = "EXTENT_REF_V0",
+ [BTRFS_CSUM_ITEM_KEY] = "CSUM_ITEM",
+ [BTRFS_EXTENT_CSUM_KEY] = "EXTENT_CSUM",
+ [BTRFS_EXTENT_DATA_KEY] = "EXTENT_DATA",
+ [BTRFS_BLOCK_GROUP_ITEM_KEY] = "BLOCK_GROUP_ITEM",
+ [BTRFS_FREE_SPACE_INFO_KEY] = "FREE_SPACE_INFO",
+ [BTRFS_FREE_SPACE_EXTENT_KEY] = "FREE_SPACE_EXTENT",
+ [BTRFS_FREE_SPACE_BITMAP_KEY] = "FREE_SPACE_BITMAP",
+ [BTRFS_CHUNK_ITEM_KEY] = "CHUNK_ITEM",
+ [BTRFS_DEV_ITEM_KEY] = "DEV_ITEM",
+ [BTRFS_DEV_EXTENT_KEY] = "DEV_EXTENT",
+ [BTRFS_TEMPORARY_ITEM_KEY] = "TEMPORARY_ITEM",
+ [BTRFS_DEV_REPLACE_KEY] = "DEV_REPLACE",
+ [BTRFS_STRING_ITEM_KEY] = "STRING_ITEM",
+ [BTRFS_QGROUP_STATUS_KEY] = "QGROUP_STATUS",
+ [BTRFS_QGROUP_RELATION_KEY] = "QGROUP_RELATION",
+ [BTRFS_QGROUP_INFO_KEY] = "QGROUP_INFO",
+ [BTRFS_QGROUP_LIMIT_KEY] = "QGROUP_LIMIT",
+ [BTRFS_PERSISTENT_ITEM_KEY] = "PERSISTENT_ITEM",
+ [BTRFS_UUID_KEY_SUBVOL] = "UUID_KEY_SUBVOL",
+ [BTRFS_UUID_KEY_RECEIVED_SUBVOL] = "UUID_KEY_RECEIVED_SUBVOL",
+ };
+
+ if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID) {
+ fprintf(stream, "UNTYPED");
+ return;
+ }
+
+
+ if (key_to_str[type])
+ fputs(key_to_str[type], stream);
+ else
+ fprintf(stream, "UNKNOWN.%d", type);
+}
+
+void print_objectid(FILE *stream, u64 objectid, u8 type)
+{
+ switch (type) {
+ case BTRFS_DEV_EXTENT_KEY:
+ /* device id */
+ fprintf(stream, "%llu", (unsigned long long)objectid);
+ return;
+ case BTRFS_QGROUP_RELATION_KEY:
+ fprintf(stream, "%llu/%llu", btrfs_qgroup_level(objectid),
+ btrfs_qgroup_subvid(objectid));
+ return;
+ case BTRFS_UUID_KEY_SUBVOL:
+ case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
+ fprintf(stream, "0x%016llx", (unsigned long long)objectid);
+ return;
+ }
+
+ switch (objectid) {
+ case BTRFS_ROOT_TREE_OBJECTID:
+ if (type == BTRFS_DEV_ITEM_KEY)
+ fprintf(stream, "DEV_ITEMS");
+ else
+ fprintf(stream, "ROOT_TREE");
+ break;
+ case BTRFS_EXTENT_TREE_OBJECTID:
+ fprintf(stream, "EXTENT_TREE");
+ break;
+ case BTRFS_CHUNK_TREE_OBJECTID:
+ fprintf(stream, "CHUNK_TREE");
+ break;
+ case BTRFS_DEV_TREE_OBJECTID:
+ fprintf(stream, "DEV_TREE");
+ break;
+ case BTRFS_FS_TREE_OBJECTID:
+ fprintf(stream, "FS_TREE");
+ break;
+ case BTRFS_ROOT_TREE_DIR_OBJECTID:
+ fprintf(stream, "ROOT_TREE_DIR");
+ break;
+ case BTRFS_CSUM_TREE_OBJECTID:
+ fprintf(stream, "CSUM_TREE");
+ break;
+ case BTRFS_BALANCE_OBJECTID:
+ fprintf(stream, "BALANCE");
+ break;
+ case BTRFS_ORPHAN_OBJECTID:
+ fprintf(stream, "ORPHAN");
+ break;
+ case BTRFS_TREE_LOG_OBJECTID:
+ fprintf(stream, "TREE_LOG");
+ break;
+ case BTRFS_TREE_LOG_FIXUP_OBJECTID:
+ fprintf(stream, "LOG_FIXUP");
+ break;
+ case BTRFS_TREE_RELOC_OBJECTID:
+ fprintf(stream, "TREE_RELOC");
+ break;
+ case BTRFS_DATA_RELOC_TREE_OBJECTID:
+ fprintf(stream, "DATA_RELOC_TREE");
+ break;
+ case BTRFS_EXTENT_CSUM_OBJECTID:
+ fprintf(stream, "EXTENT_CSUM");
+ break;
+ case BTRFS_FREE_SPACE_OBJECTID:
+ fprintf(stream, "FREE_SPACE");
+ break;
+ case BTRFS_FREE_INO_OBJECTID:
+ fprintf(stream, "FREE_INO");
+ break;
+ case BTRFS_QUOTA_TREE_OBJECTID:
+ fprintf(stream, "QUOTA_TREE");
+ break;
+ case BTRFS_UUID_TREE_OBJECTID:
+ fprintf(stream, "UUID_TREE");
+ break;
+ case BTRFS_FREE_SPACE_TREE_OBJECTID:
+ fprintf(stream, "FREE_SPACE_TREE");
+ break;
+ case BTRFS_MULTIPLE_OBJECTIDS:
+ fprintf(stream, "MULTIPLE");
+ break;
+ case (u64)-1:
+ fprintf(stream, "-1");
+ break;
+ case BTRFS_FIRST_CHUNK_TREE_OBJECTID:
+ if (type == BTRFS_CHUNK_ITEM_KEY) {
+ fprintf(stream, "FIRST_CHUNK_TREE");
+ break;
+ }
+ /* fall-thru */
+ default:
+ fprintf(stream, "%llu", (unsigned long long)objectid);
+ }
+}
+
+void btrfs_print_key(struct btrfs_disk_key *disk_key)
+{
+ u64 objectid = btrfs_disk_key_objectid(disk_key);
+ u8 type = btrfs_disk_key_type(disk_key);
+ u64 offset = btrfs_disk_key_offset(disk_key);
+
+ printf("key (");
+ print_objectid(stdout, objectid, type);
+ printf(" ");
+ print_key_type(stdout, objectid, type);
+ switch (type) {
+ case BTRFS_QGROUP_RELATION_KEY:
+ case BTRFS_QGROUP_INFO_KEY:
+ case BTRFS_QGROUP_LIMIT_KEY:
+ printf(" %llu/%llu)", btrfs_qgroup_level(offset),
+ btrfs_qgroup_subvid(offset));
+ break;
+ case BTRFS_UUID_KEY_SUBVOL:
+ case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
+ printf(" 0x%016llx)", (unsigned long long)offset);
+ break;
+
+ /*
+ * Key offsets of ROOT_ITEM point to tree root, print them in human
+ * readable format. Especially useful for trees like data/tree reloc
+ * tree, whose tree id can be negative.
+ */
+ case BTRFS_ROOT_ITEM_KEY:
+ printf(" ");
+ /*
+ * Normally offset of ROOT_ITEM should present the generation
+ * of creation time of the root.
+ * However if this is reloc tree, offset is the subvolume
+ * id of its source. Here we do extra check on this.
+ */
+ if (objectid == BTRFS_TREE_RELOC_OBJECTID)
+ print_objectid(stdout, offset, type);
+ else
+ printf("%lld", offset);
+ printf(")");
+ break;
+ default:
+ if (offset == (u64)-1)
+ printf(" -1)");
+ else
+ printf(" %llu)", (unsigned long long)offset);
+ break;
+ }
+}
+
+static void print_uuid_item(struct extent_buffer *l, unsigned long offset,
+ u32 item_size)
+{
+ if (item_size & (sizeof(u64) - 1)) {
+ printf("btrfs: uuid item with illegal size %lu!\n",
+ (unsigned long)item_size);
+ return;
+ }
+ while (item_size) {
+ __le64 subvol_id;
+
+ read_extent_buffer(l, &subvol_id, offset, sizeof(u64));
+ printf("\t\tsubvol_id %llu\n",
+ (unsigned long long)le64_to_cpu(subvol_id));
+ item_size -= sizeof(u64);
+ offset += sizeof(u64);
+ }
+}
+
+/* Btrfs inode flag stringification helper */
+#define STRCAT_ONE_INODE_FLAG(flags, name, empty, dst) ({ \
+ if (flags & BTRFS_INODE_##name) { \
+ if (!empty) \
+ strcat(dst, "|"); \
+ strcat(dst, #name); \
+ empty = 0; \
+ } \
+})
+
+/*
+ * Caller should ensure sizeof(*ret) >= 102: all charactors plus '|' of
+ * BTRFS_INODE_* flags
+ */
+static void inode_flags_to_str(u64 flags, char *ret)
+{
+ int empty = 1;
+
+ STRCAT_ONE_INODE_FLAG(flags, NODATASUM, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, NODATACOW, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, READONLY, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, NOCOMPRESS, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, PREALLOC, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, SYNC, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, IMMUTABLE, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, APPEND, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, NODUMP, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, NOATIME, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, DIRSYNC, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, COMPRESS, empty, ret);
+ if (empty)
+ strcat(ret, "none");
+}
+
+static void print_inode_item(struct extent_buffer *eb,
+ struct btrfs_inode_item *ii)
+{
+ char flags_str[256];
+
+ memset(flags_str, 0, sizeof(flags_str));
+ inode_flags_to_str(btrfs_inode_flags(eb, ii), flags_str);
+ printf("\t\tgeneration %llu transid %llu size %llu nbytes %llu\n"
+ "\t\tblock group %llu mode %o links %u uid %u gid %u rdev %llu\n"
+ "\t\tsequence %llu flags 0x%llx(%s)\n",
+ (unsigned long long)btrfs_inode_generation(eb, ii),
+ (unsigned long long)btrfs_inode_transid(eb, ii),
+ (unsigned long long)btrfs_inode_size(eb, ii),
+ (unsigned long long)btrfs_inode_nbytes(eb, ii),
+ (unsigned long long)btrfs_inode_block_group(eb,ii),
+ btrfs_inode_mode(eb, ii),
+ btrfs_inode_nlink(eb, ii),
+ btrfs_inode_uid(eb, ii),
+ btrfs_inode_gid(eb, ii),
+ (unsigned long long)btrfs_inode_rdev(eb,ii),
+ (unsigned long long)btrfs_inode_sequence(eb, ii),
+ (unsigned long long)btrfs_inode_flags(eb,ii),
+ flags_str);
+ print_timespec(eb, btrfs_inode_atime(ii), "\t\tatime ", "\n");
+ print_timespec(eb, btrfs_inode_ctime(ii), "\t\tctime ", "\n");
+ print_timespec(eb, btrfs_inode_mtime(ii), "\t\tmtime ", "\n");
+ print_timespec(eb, btrfs_inode_otime(ii), "\t\totime ", "\n");
+}
+
+static void print_disk_balance_args(struct btrfs_disk_balance_args *ba)
+{
+ printf("\t\tprofiles %llu devid %llu target %llu flags %llu\n",
+ (unsigned long long)le64_to_cpu(ba->profiles),
+ (unsigned long long)le64_to_cpu(ba->devid),
+ (unsigned long long)le64_to_cpu(ba->target),
+ (unsigned long long)le64_to_cpu(ba->flags));
+ printf("\t\tusage_min %u usage_max %u pstart %llu pend %llu\n",
+ le32_to_cpu(ba->usage_min),
+ le32_to_cpu(ba->usage_max),
+ (unsigned long long)le64_to_cpu(ba->pstart),
+ (unsigned long long)le64_to_cpu(ba->pend));
+ printf("\t\tvstart %llu vend %llu limit_min %u limit_max %u\n",
+ (unsigned long long)le64_to_cpu(ba->vstart),
+ (unsigned long long)le64_to_cpu(ba->vend),
+ le32_to_cpu(ba->limit_min),
+ le32_to_cpu(ba->limit_max));
+ printf("\t\tstripes_min %u stripes_max %u\n",
+ le32_to_cpu(ba->stripes_min),
+ le32_to_cpu(ba->stripes_max));
+}
+
+static void print_balance_item(struct extent_buffer *eb,
+ struct btrfs_balance_item *bi)
+{
+ printf("\t\tbalance status flags %llu\n",
+ btrfs_balance_item_flags(eb, bi));
+
+ printf("\t\tDATA\n");
+ print_disk_balance_args(btrfs_balance_item_data(eb, bi));
+ printf("\t\tMETADATA\n");
+ print_disk_balance_args(btrfs_balance_item_meta(eb, bi));
+ printf("\t\tSYSTEM\n");
+ print_disk_balance_args(btrfs_balance_item_sys(eb, bi));
+}
+
+static void print_dev_stats(struct extent_buffer *eb,
+ struct btrfs_dev_stats_item *stats, u32 size)
+{
+ int i;
+ u32 known = BTRFS_DEV_STAT_VALUES_MAX * sizeof(__le64);
+ __le64 *values = btrfs_dev_stats_values(eb, stats);
+
+ printf("\t\tdevice stats\n");
+ printf("\t\twrite_errs %llu read_errs %llu flush_errs %llu corruption_errs %llu generation %llu\n",
+ (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_WRITE_ERRS]),
+ (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_READ_ERRS]),
+ (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_FLUSH_ERRS]),
+ (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_CORRUPTION_ERRS]),
+ (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_GENERATION_ERRS]));
+
+ if (known < size) {
+ printf("\t\tunknown stats item bytes %u", size - known);
+ for (i = BTRFS_DEV_STAT_VALUES_MAX; i * sizeof(__le64) < size; i++) {
+ printf("\t\tunknown item %u offset %zu value %llu\n",
+ i, i * sizeof(__le64),
+ (unsigned long long)le64_to_cpu(values[i]));
+ }
+ }
+}
+
+static void print_block_group_item(struct extent_buffer *eb,
+ struct btrfs_block_group_item *bgi)
+{
+ struct btrfs_block_group_item bg_item;
+ char flags_str[256];
+
+ read_extent_buffer(eb, &bg_item, (unsigned long)bgi, sizeof(bg_item));
+ memset(flags_str, 0, sizeof(flags_str));
+ bg_flags_to_str(btrfs_block_group_flags(&bg_item), flags_str);
+ printf("\t\tblock group used %llu chunk_objectid %llu flags %s\n",
+ (unsigned long long)btrfs_block_group_used(&bg_item),
+ (unsigned long long)btrfs_block_group_chunk_objectid(&bg_item),
+ flags_str);
+}
+
+static void print_extent_data_ref(struct extent_buffer *eb, int slot)
+{
+ struct btrfs_extent_data_ref *dref;
+
+ dref = btrfs_item_ptr(eb, slot, struct btrfs_extent_data_ref);
+ printf("\t\textent data backref root %llu "
+ "objectid %llu offset %llu count %u\n",
+ (unsigned long long)btrfs_extent_data_ref_root(eb, dref),
+ (unsigned long long)btrfs_extent_data_ref_objectid(eb, dref),
+ (unsigned long long)btrfs_extent_data_ref_offset(eb, dref),
+ btrfs_extent_data_ref_count(eb, dref));
+}
+
+static void print_shared_data_ref(struct extent_buffer *eb, int slot)
+{
+ struct btrfs_shared_data_ref *sref;
+
+ sref = btrfs_item_ptr(eb, slot, struct btrfs_shared_data_ref);
+ printf("\t\tshared data backref count %u\n",
+ btrfs_shared_data_ref_count(eb, sref));
+}
+
+static void print_free_space_info(struct extent_buffer *eb, int slot)
+{
+ struct btrfs_free_space_info *free_info;
+
+ free_info = btrfs_item_ptr(eb, slot, struct btrfs_free_space_info);
+ printf("\t\tfree space info extent count %u flags %u\n",
+ (unsigned)btrfs_free_space_extent_count(eb, free_info),
+ (unsigned)btrfs_free_space_flags(eb, free_info));
+}
+
+static void print_dev_extent(struct extent_buffer *eb, int slot)
+{
+ struct btrfs_dev_extent *dev_extent;
+ u8 uuid[BTRFS_UUID_SIZE];
+ char uuid_str[BTRFS_UUID_UNPARSED_SIZE];
+
+ dev_extent = btrfs_item_ptr(eb, slot, struct btrfs_dev_extent);
+ read_extent_buffer(eb, uuid,
+ (unsigned long)btrfs_dev_extent_chunk_tree_uuid(dev_extent),
+ BTRFS_UUID_SIZE);
+ uuid_unparse(uuid, uuid_str);
+ printf("\t\tdev extent chunk_tree %llu\n"
+ "\t\tchunk_objectid %llu chunk_offset %llu "
+ "length %llu\n"
+ "\t\tchunk_tree_uuid %s\n",
+ (unsigned long long)btrfs_dev_extent_chunk_tree(eb, dev_extent),
+ (unsigned long long)btrfs_dev_extent_chunk_objectid(eb, dev_extent),
+ (unsigned long long)btrfs_dev_extent_chunk_offset(eb, dev_extent),
+ (unsigned long long)btrfs_dev_extent_length(eb, dev_extent),
+ uuid_str);
+}
+
+static void print_qgroup_status(struct extent_buffer *eb, int slot)
+{
+ struct btrfs_qgroup_status_item *qg_status;
+ char flags_str[256];
+
+ qg_status = btrfs_item_ptr(eb, slot, struct btrfs_qgroup_status_item);
+ memset(flags_str, 0, sizeof(flags_str));
+ qgroup_flags_to_str(btrfs_qgroup_status_flags(eb, qg_status),
+ flags_str);
+ printf("\t\tversion %llu generation %llu flags %s scan %lld\n",
+ (unsigned long long)btrfs_qgroup_status_version(eb, qg_status),
+ (unsigned long long)btrfs_qgroup_status_generation(eb, qg_status),
+ flags_str,
+ (unsigned long long)btrfs_qgroup_status_rescan(eb, qg_status));
+}
+
+static void print_qgroup_info(struct extent_buffer *eb, int slot)
+{
+ struct btrfs_qgroup_info_item *qg_info;
+
+ qg_info = btrfs_item_ptr(eb, slot, struct btrfs_qgroup_info_item);
+ printf("\t\tgeneration %llu\n"
+ "\t\treferenced %llu referenced_compressed %llu\n"
+ "\t\texclusive %llu exclusive_compressed %llu\n",
+ (unsigned long long)btrfs_qgroup_info_generation(eb, qg_info),
+ (unsigned long long)btrfs_qgroup_info_referenced(eb, qg_info),
+ (unsigned long long)btrfs_qgroup_info_referenced_compressed(eb,
+ qg_info),
+ (unsigned long long)btrfs_qgroup_info_exclusive(eb, qg_info),
+ (unsigned long long)btrfs_qgroup_info_exclusive_compressed(eb,
+ qg_info));
+}
+
+static void print_qgroup_limit(struct extent_buffer *eb, int slot)
+{
+ struct btrfs_qgroup_limit_item *qg_limit;
+
+ qg_limit = btrfs_item_ptr(eb, slot, struct btrfs_qgroup_limit_item);
+ printf("\t\tflags %llx\n"
+ "\t\tmax_referenced %lld max_exclusive %lld\n"
+ "\t\trsv_referenced %lld rsv_exclusive %lld\n",
+ (unsigned long long)btrfs_qgroup_limit_flags(eb, qg_limit),
+ (long long)btrfs_qgroup_limit_max_referenced(eb, qg_limit),
+ (long long)btrfs_qgroup_limit_max_exclusive(eb, qg_limit),
+ (long long)btrfs_qgroup_limit_rsv_referenced(eb, qg_limit),
+ (long long)btrfs_qgroup_limit_rsv_exclusive(eb, qg_limit));
+}
+
+static void print_persistent_item(struct extent_buffer *eb, void *ptr,
+ u32 item_size, u64 objectid, u64 offset)
+{
+ printf("\t\tpersistent item objectid ");
+ print_objectid(stdout, objectid, BTRFS_PERSISTENT_ITEM_KEY);
+ printf(" offset %llu\n", (unsigned long long)offset);
+ switch (objectid) {
+ case BTRFS_DEV_STATS_OBJECTID:
+ print_dev_stats(eb, ptr, item_size);
+ break;
+ default:
+ printf("\t\tunknown persistent item objectid %llu\n", objectid);
+ }
+}
+
+static void print_temporary_item(struct extent_buffer *eb, void *ptr,
+ u64 objectid, u64 offset)
+{
+ printf("\t\ttemporary item objectid ");
+ print_objectid(stdout, objectid, BTRFS_TEMPORARY_ITEM_KEY);
+ printf(" offset %llu\n", (unsigned long long)offset);
+ switch (objectid) {
+ case BTRFS_BALANCE_OBJECTID:
+ print_balance_item(eb, ptr);
+ break;
+ default:
+ printf("\t\tunknown temporary item objectid %llu\n", objectid);
+ }
+}
+
+static void print_extent_csum(struct extent_buffer *eb,
+ struct btrfs_fs_info *fs_info, u32 item_size, u64 start)
+{
+ u32 size;
+
+ size = (item_size / btrfs_super_csum_size(fs_info->super_copy)) *
+ fs_info->sectorsize;
+ printf("\t\trange start %llu end %llu length %u\n",
+ (unsigned long long)start,
+ (unsigned long long)start + size, size);
+}
+
+/* Caller must ensure sizeof(*ret) >= 14 "WRITTEN|RELOC" */
+static void header_flags_to_str(u64 flags, char *ret)
+{
+ int empty = 1;
+
+ if (flags & BTRFS_HEADER_FLAG_WRITTEN) {
+ empty = 0;
+ strcpy(ret, "WRITTEN");
+ }
+ if (flags & BTRFS_HEADER_FLAG_RELOC) {
+ if (!empty)
+ strcat(ret, "|");
+ strcat(ret, "RELOC");
+ }
+}
+
+void btrfs_print_leaf(struct extent_buffer *eb)
+{
+ struct btrfs_fs_info *fs_info = eb->fs_info;
+ struct btrfs_item *item;
+ struct btrfs_disk_key disk_key;
+ char flags_str[128];
+ u32 i;
+ u32 nr;
+ u64 flags;
+ u8 backref_rev;
+
+ flags = btrfs_header_flags(eb) & ~BTRFS_BACKREF_REV_MASK;
+ backref_rev = btrfs_header_flags(eb) >> BTRFS_BACKREF_REV_SHIFT;
+ header_flags_to_str(flags, flags_str);
+ nr = btrfs_header_nritems(eb);
+
+ printf("leaf %llu items %d free space %d generation %llu owner ",
+ (unsigned long long)btrfs_header_bytenr(eb), nr,
+ btrfs_leaf_free_space(fs_info, eb),
+ (unsigned long long)btrfs_header_generation(eb));
+ print_objectid(stdout, btrfs_header_owner(eb), 0);
+ printf("\n");
+ printf("leaf %llu flags 0x%llx(%s) backref revision %d\n",
+ btrfs_header_bytenr(eb), flags, flags_str, backref_rev);
+ print_uuids(eb);