X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=print-tree.c;h=45350fea0963148023ce493624bb8de147d90c13;hb=89f5a8f97ca8c53759a1dcd8117808db2086643f;hp=9b90f9b5dd40b0e2c8af9c73a67eacb8d80ff01b;hpb=d47b4e4dd284a7668b517671d4dd5de35e8a912d;p=platform%2Fupstream%2Fbtrfs-progs.git diff --git a/print-tree.c b/print-tree.c index 9b90f9b..45350fe 100644 --- a/print-tree.c +++ b/print-tree.c @@ -31,41 +31,26 @@ static void print_dir_item_type(struct extent_buffer *eb, struct btrfs_dir_item *di) { u8 type = btrfs_dir_type(eb, di); + static const char* dir_item_str[] = { + [BTRFS_FT_REG_FILE] = "FILE", + [BTRFS_FT_DIR] = "DIR", + [BTRFS_FT_CHRDEV] = "CHRDEV", + [BTRFS_FT_BLKDEV] = "BLKDEV", + [BTRFS_FT_FIFO] = "FIFO", + [BTRFS_FT_SOCK] = "SOCK", + [BTRFS_FT_SYMLINK] = "SYMLINK", + [BTRFS_FT_XATTR] = "XATTR" + }; - switch (type) { - case BTRFS_FT_REG_FILE: - printf("FILE"); - break; - case BTRFS_FT_DIR: - printf("DIR"); - break; - case BTRFS_FT_CHRDEV: - printf("CHRDEV"); - break; - case BTRFS_FT_BLKDEV: - printf("BLKDEV"); - break; - case BTRFS_FT_FIFO: - printf("FIFO"); - break; - case BTRFS_FT_SOCK: - printf("SOCK"); - break; - case BTRFS_FT_SYMLINK: - printf("SYMLINK"); - break; - case BTRFS_FT_XATTR: - printf("XATTR"); - break; - default: - printf("%u", type); - } + if (type < ARRAY_SIZE(dir_item_str) && dir_item_str[type]) + printf("%s", dir_item_str[type]); + else + printf("DIR_ITEM.%u", type); } -static int print_dir_item(struct extent_buffer *eb, struct btrfs_item *item, +static void print_dir_item(struct extent_buffer *eb, u32 size, struct btrfs_dir_item *di) { - u32 total; u32 cur = 0; u32 len; u32 name_len; @@ -73,8 +58,7 @@ static int print_dir_item(struct extent_buffer *eb, struct btrfs_item *item, char namebuf[BTRFS_NAME_LEN]; struct btrfs_disk_key location; - total = btrfs_item_size(eb, item); - while(cur < total) { + while (cur < size) { btrfs_dir_item_key(eb, di, &location); printf("\t\tlocation "); btrfs_print_key(&location); @@ -85,8 +69,10 @@ static int print_dir_item(struct extent_buffer *eb, struct btrfs_item *item, data_len = btrfs_dir_data_len(eb, di); len = (name_len <= sizeof(namebuf))? name_len: sizeof(namebuf); read_extent_buffer(eb, namebuf, (unsigned long)(di + 1), len); - printf("\t\tnamelen %u datalen %u name: %.*s\n", - name_len, data_len, len, namebuf); + printf("\t\ttransid %llu data_len %u name_len %u\n", + btrfs_dir_transid(eb, di), + data_len, name_len); + printf("\t\tname: %.*s\n", len, namebuf); if (data_len) { len = (data_len <= sizeof(namebuf))? data_len: sizeof(namebuf); read_extent_buffer(eb, namebuf, @@ -97,14 +83,11 @@ static int print_dir_item(struct extent_buffer *eb, struct btrfs_item *item, di = (struct btrfs_dir_item *)((char *)di + len); cur += len; } - return 0; } -static int print_inode_extref_item(struct extent_buffer *eb, - struct btrfs_item *item, - struct btrfs_inode_extref *extref) +static void print_inode_extref_item(struct extent_buffer *eb, u32 size, + struct btrfs_inode_extref *extref) { - u32 total; u32 cur = 0; u32 len; u32 name_len = 0; @@ -112,9 +95,7 @@ static int print_inode_extref_item(struct extent_buffer *eb, u64 parent_objid; char namebuf[BTRFS_NAME_LEN]; - total = btrfs_item_size(eb, item); - - while (cur < total) { + while (cur < size) { index = btrfs_inode_extref_index(eb, extref); name_len = btrfs_inode_extref_name_len(eb, extref); parent_objid = btrfs_inode_extref_parent(eb, extref); @@ -123,8 +104,7 @@ static int print_inode_extref_item(struct extent_buffer *eb, read_extent_buffer(eb, namebuf, (unsigned long)(extref->name), len); - printf("\t\tinode extref index %llu parent %llu namelen %u " - "name: %.*s\n", + printf("\t\tindex %llu parent %llu namelen %u name: %.*s\n", (unsigned long long)index, (unsigned long long)parent_objid, name_len, len, namebuf); @@ -133,57 +113,181 @@ static int print_inode_extref_item(struct extent_buffer *eb, extref = (struct btrfs_inode_extref *)((char *)extref + len); cur += len; } - return 0; } -static int print_inode_ref_item(struct extent_buffer *eb, struct btrfs_item *item, +static void print_inode_ref_item(struct extent_buffer *eb, u32 size, struct btrfs_inode_ref *ref) { - u32 total; u32 cur = 0; u32 len; u32 name_len; u64 index; char namebuf[BTRFS_NAME_LEN]; - total = btrfs_item_size(eb, item); - while(cur < total) { + + while (cur < size) { name_len = btrfs_inode_ref_name_len(eb, ref); index = btrfs_inode_ref_index(eb, ref); len = (name_len <= sizeof(namebuf))? name_len: sizeof(namebuf); read_extent_buffer(eb, namebuf, (unsigned long)(ref + 1), len); - printf("\t\tinode ref index %llu namelen %u name: %.*s\n", + printf("\t\tindex %llu namelen %u name: %.*s\n", (unsigned long long)index, name_len, len, namebuf); len = sizeof(*ref) + name_len; ref = (struct btrfs_inode_ref *)((char *)ref + len); cur += len; } - return 0; } -static void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk) +/* Caller should ensure sizeof(*ret)>=21 "DATA|METADATA|RAID10" */ +static void bg_flags_to_str(u64 flags, char *ret) +{ + int empty = 1; + + if (flags & BTRFS_BLOCK_GROUP_DATA) { + empty = 0; + strcpy(ret, "DATA"); + } + if (flags & BTRFS_BLOCK_GROUP_METADATA) { + if (!empty) + strcat(ret, "|"); + strcat(ret, "METADATA"); + } + if (flags & BTRFS_BLOCK_GROUP_SYSTEM) { + if (!empty) + strcat(ret, "|"); + strcat(ret, "SYSTEM"); + } + switch (flags & BTRFS_BLOCK_GROUP_PROFILE_MASK) { + case BTRFS_BLOCK_GROUP_RAID0: + strcat(ret, "|RAID0"); + break; + case BTRFS_BLOCK_GROUP_RAID1: + strcat(ret, "|RAID1"); + break; + case BTRFS_BLOCK_GROUP_DUP: + strcat(ret, "|DUP"); + break; + case BTRFS_BLOCK_GROUP_RAID10: + strcat(ret, "|RAID10"); + break; + case BTRFS_BLOCK_GROUP_RAID5: + strcat(ret, "|RAID5"); + break; + case BTRFS_BLOCK_GROUP_RAID6: + strcat(ret, "|RAID6"); + break; + default: + break; + } +} + +/* Caller should ensure sizeof(*ret)>= 26 "OFF|SCANNING|INCONSISTENT" */ +static void qgroup_flags_to_str(u64 flags, char *ret) +{ + if (flags & BTRFS_QGROUP_STATUS_FLAG_ON) + strcpy(ret, "ON"); + else + strcpy(ret, "OFF"); + + if (flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN) + strcat(ret, "|SCANNING"); + if (flags & BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT) + strcat(ret, "|INCONSISTENT"); +} + +void print_chunk_item(struct extent_buffer *eb, struct btrfs_chunk *chunk) { - int num_stripes = btrfs_chunk_num_stripes(eb, chunk); + u16 num_stripes = btrfs_chunk_num_stripes(eb, chunk); int i; - printf("\t\tchunk length %llu owner %llu type %llu num_stripes %d\n", + u32 chunk_item_size; + char chunk_flags_str[32] = {0}; + + /* The chunk must contain at least one stripe */ + if (num_stripes < 1) { + printf("invalid num_stripes: %u\n", num_stripes); + return; + } + + chunk_item_size = btrfs_chunk_item_size(num_stripes); + + if ((unsigned long)chunk + chunk_item_size > eb->len) { + printf("\t\tchunk item invalid\n"); + return; + } + + bg_flags_to_str(btrfs_chunk_type(eb, chunk), chunk_flags_str); + printf("\t\tlength %llu owner %llu stripe_len %llu type %s\n", (unsigned long long)btrfs_chunk_length(eb, chunk), (unsigned long long)btrfs_chunk_owner(eb, chunk), - (unsigned long long)btrfs_chunk_type(eb, chunk), - num_stripes); + (unsigned long long)btrfs_chunk_stripe_len(eb, chunk), + chunk_flags_str); + printf("\t\tio_align %u io_width %u sector_size %u\n", + btrfs_chunk_io_align(eb, chunk), + btrfs_chunk_io_width(eb, chunk), + btrfs_chunk_sector_size(eb, chunk)); + printf("\t\tnum_stripes %hu sub_stripes %hu\n", num_stripes, + btrfs_chunk_sub_stripes(eb, chunk)); for (i = 0 ; i < num_stripes ; i++) { + unsigned char dev_uuid[BTRFS_UUID_SIZE]; + char str_dev_uuid[BTRFS_UUID_UNPARSED_SIZE]; + u64 uuid_offset; + u64 stripe_offset; + + uuid_offset = (unsigned long)btrfs_stripe_dev_uuid_nr(chunk, i); + stripe_offset = (unsigned long)btrfs_stripe_nr(chunk, i); + + if (uuid_offset < stripe_offset || + (uuid_offset + BTRFS_UUID_SIZE) > + (stripe_offset + sizeof(struct btrfs_stripe))) { + printf("\t\t\tstripe %d invalid\n", i); + break; + } + + read_extent_buffer(eb, dev_uuid, + uuid_offset, + BTRFS_UUID_SIZE); + uuid_unparse(dev_uuid, str_dev_uuid); printf("\t\t\tstripe %d devid %llu offset %llu\n", i, (unsigned long long)btrfs_stripe_devid_nr(eb, chunk, i), (unsigned long long)btrfs_stripe_offset_nr(eb, chunk, i)); + printf("\t\t\tdev_uuid %s\n", str_dev_uuid); } } static void print_dev_item(struct extent_buffer *eb, struct btrfs_dev_item *dev_item) { - printf("\t\tdev item devid %llu " - "total_bytes %llu bytes used %Lu\n", + char uuid_str[BTRFS_UUID_UNPARSED_SIZE]; + char fsid_str[BTRFS_UUID_UNPARSED_SIZE]; + u8 uuid[BTRFS_UUID_SIZE]; + u8 fsid[BTRFS_UUID_SIZE]; + + read_extent_buffer(eb, uuid, + (unsigned long)btrfs_device_uuid(dev_item), + BTRFS_UUID_SIZE); + uuid_unparse(uuid, uuid_str); + read_extent_buffer(eb, fsid, + (unsigned long)btrfs_device_fsid(dev_item), + BTRFS_UUID_SIZE); + uuid_unparse(fsid, fsid_str); + printf("\t\tdevid %llu total_bytes %llu bytes_used %Lu\n" + "\t\tio_align %u io_width %u sector_size %u type %llu\n" + "\t\tgeneration %llu start_offset %llu dev_group %u\n" + "\t\tseek_speed %hhu bandwidth %hhu\n" + "\t\tuuid %s\n" + "\t\tfsid %s\n", (unsigned long long)btrfs_device_id(eb, dev_item), (unsigned long long)btrfs_device_total_bytes(eb, dev_item), - (unsigned long long)btrfs_device_bytes_used(eb, dev_item)); + (unsigned long long)btrfs_device_bytes_used(eb, dev_item), + btrfs_device_io_align(eb, dev_item), + btrfs_device_io_width(eb, dev_item), + btrfs_device_sector_size(eb, dev_item), + (unsigned long long)btrfs_device_type(eb, dev_item), + (unsigned long long)btrfs_device_generation(eb, dev_item), + (unsigned long long)btrfs_device_start_offset(eb, dev_item), + btrfs_device_group(eb, dev_item), + btrfs_device_seek_speed(eb, dev_item), + btrfs_device_bandwidth(eb, dev_item), + uuid_str, fsid_str); } static void print_uuids(struct extent_buffer *eb) @@ -207,18 +311,57 @@ static void print_uuids(struct extent_buffer *eb) printf("fs uuid %s\nchunk uuid %s\n", fs_uuid, chunk_uuid); } +static void compress_type_to_str(u8 compress_type, char *ret) +{ + switch (compress_type) { + case BTRFS_COMPRESS_NONE: + strcpy(ret, "none"); + break; + case BTRFS_COMPRESS_ZLIB: + strcpy(ret, "zlib"); + break; + case BTRFS_COMPRESS_LZO: + strcpy(ret, "lzo"); + break; + case BTRFS_COMPRESS_ZSTD: + strcpy(ret, "zstd"); + break; + default: + sprintf(ret, "UNKNOWN.%d", compress_type); + } +} + +static const char* file_extent_type_to_str(u8 type) +{ + switch (type) { + case BTRFS_FILE_EXTENT_INLINE: return "inline"; + case BTRFS_FILE_EXTENT_PREALLOC: return "prealloc"; + case BTRFS_FILE_EXTENT_REG: return "regular"; + default: return "unknown"; + } +} + static void print_file_extent_item(struct extent_buffer *eb, struct btrfs_item *item, + int slot, struct btrfs_file_extent_item *fi) { - int extent_type = btrfs_file_extent_type(eb, fi); + unsigned char extent_type = btrfs_file_extent_type(eb, fi); + char compress_str[16]; + + compress_type_to_str(btrfs_file_extent_compression(eb, fi), + compress_str); + + printf("\t\tgeneration %llu type %hhu (%s)\n", + btrfs_file_extent_generation(eb, fi), + extent_type, file_extent_type_to_str(extent_type)); if (extent_type == BTRFS_FILE_EXTENT_INLINE) { - printf("\t\tinline extent data size %u " - "ram %u compress %d\n", - btrfs_file_extent_inline_item_len(eb, item), - btrfs_file_extent_inline_len(eb, fi), - btrfs_file_extent_compression(eb, fi)); + printf("\t\tinline extent data size %u ram_bytes %u compression %hhu (%s)\n", + btrfs_file_extent_inline_item_len(eb, item), + btrfs_file_extent_inline_len(eb, slot, fi), + btrfs_file_extent_compression(eb, fi), + compress_str); return; } if (extent_type == BTRFS_FILE_EXTENT_PREALLOC) { @@ -237,11 +380,34 @@ static void print_file_extent_item(struct extent_buffer *eb, (unsigned long long)btrfs_file_extent_offset(eb, fi), (unsigned long long)btrfs_file_extent_num_bytes(eb, fi), (unsigned long long)btrfs_file_extent_ram_bytes(eb, fi)); - printf("\t\textent compression %d\n", - btrfs_file_extent_compression(eb, fi)); + printf("\t\textent compression %hhu (%s)\n", + btrfs_file_extent_compression(eb, fi), + compress_str); } -static void print_extent_item(struct extent_buffer *eb, int slot, int metadata) +/* Caller should ensure sizeof(*ret) >= 16("DATA|TREE_BLOCK") */ +static void extent_flags_to_str(u64 flags, char *ret) +{ + int empty = 1; + + if (flags & BTRFS_EXTENT_FLAG_DATA) { + empty = 0; + strcpy(ret, "DATA"); + } + if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK) { + if (!empty) { + empty = 0; + strcat(ret, "|"); + } + strcat(ret, "TREE_BLOCK"); + } + if (flags & BTRFS_BLOCK_FLAG_FULL_BACKREF) { + strcat(ret, "|"); + strcat(ret, "FULL_BACKREF"); + } +} + +void print_extent_item(struct extent_buffer *eb, int slot, int metadata) { struct btrfs_extent_item *ei; struct btrfs_extent_inline_ref *iref; @@ -254,13 +420,14 @@ static void print_extent_item(struct extent_buffer *eb, int slot, int metadata) u32 item_size = btrfs_item_size_nr(eb, slot); u64 flags; u64 offset; + char flags_str[32] = {0}; if (item_size < sizeof(*ei)) { #ifdef BTRFS_COMPAT_EXTENT_TREE_V0 struct btrfs_extent_item_v0 *ei0; BUG_ON(item_size != sizeof(*ei0)); ei0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_item_v0); - printf("\t\textent refs %u\n", + printf("\t\trefs %u\n", btrfs_extent_refs_v0(eb, ei0)); return; #else @@ -270,11 +437,12 @@ static void print_extent_item(struct extent_buffer *eb, int slot, int metadata) ei = btrfs_item_ptr(eb, slot, struct btrfs_extent_item); flags = btrfs_extent_flags(eb, ei); + extent_flags_to_str(flags, flags_str); - printf("\t\textent refs %llu gen %llu flags %llu\n", + printf("\t\trefs %llu gen %llu flags %s\n", (unsigned long long)btrfs_extent_refs(eb, ei), (unsigned long long)btrfs_extent_generation(eb, ei), - (unsigned long long)flags); + flags_str); if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK && !metadata) { struct btrfs_tree_block_info *info; @@ -347,7 +515,7 @@ static void print_extent_ref_v0(struct extent_buffer *eb, int slot) } #endif -static void print_root_ref(struct extent_buffer *leaf, int slot, char *tag) +static void print_root_ref(struct extent_buffer *leaf, int slot, const char *tag) { struct btrfs_root_ref *ref; char namebuf[BTRFS_NAME_LEN]; @@ -362,45 +530,84 @@ static void print_root_ref(struct extent_buffer *leaf, int slot, char *tag) namelen, namebuf); } -static int count_bytes(void *buf, int len, char b) +static int empty_uuid(const u8 *uuid) { - int cnt = 0; int i; - for (i = 0; i < len; i++) { - if (((char*)buf)[i] == b) - cnt++; - } - return cnt; + + for (i = 0; i < BTRFS_UUID_SIZE; i++) + if (uuid[i]) + return 0; + return 1; +} + +/* + * Caller must ensure sizeof(*ret) >= 7 "RDONLY" + */ +static void root_flags_to_str(u64 flags, char *ret) +{ + if (flags & BTRFS_ROOT_SUBVOL_RDONLY) + strcat(ret, "RDONLY"); + else + strcat(ret, "none"); +} + +static void print_timespec(struct extent_buffer *eb, + struct btrfs_timespec *timespec, const char *prefix, + const char *suffix) +{ + struct tm tm; + u64 tmp_u64; + u32 tmp_u32; + time_t tmp_time; + char timestamp[256]; + + tmp_u64 = btrfs_timespec_sec(eb, timespec); + tmp_u32 = btrfs_timespec_nsec(eb, timespec); + tmp_time = tmp_u64; + localtime_r(&tmp_time, &tm); + strftime(timestamp, sizeof(timestamp), + "%Y-%m-%d %H:%M:%S", &tm); + printf("%s%llu.%u (%s)%s", prefix, (unsigned long long)tmp_u64, tmp_u32, + timestamp, suffix); } -static void print_root(struct extent_buffer *leaf, int slot) +static void print_root_item(struct extent_buffer *leaf, int slot) { struct btrfs_root_item *ri; 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\troot data bytenr %llu level %d dirid %llu refs %u gen %llu\n", + 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), - (unsigned long long)btrfs_root_dirid(&root_item), - btrfs_root_refs(&root_item), - (unsigned long long)btrfs_root_generation(&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 (count_bytes(root_item.parent_uuid, BTRFS_UUID_SIZE, 0) != BTRFS_UUID_SIZE) { + if (!empty_uuid(root_item.parent_uuid)) { uuid_unparse(root_item.parent_uuid, uuid_str); printf("\t\tparent_uuid %s\n", uuid_str); } - if (count_bytes(root_item.received_uuid, BTRFS_UUID_SIZE, 0) != BTRFS_UUID_SIZE) { + if (!empty_uuid(root_item.received_uuid)) { uuid_unparse(root_item.received_uuid, uuid_str); printf("\t\treceived_uuid %s\n", uuid_str); } @@ -411,15 +618,24 @@ static void print_root(struct extent_buffer *leaf, int slot) 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"); } - if (btrfs_root_refs(&root_item) == 0) { - struct btrfs_key drop_key; - btrfs_disk_key_to_cpu(&drop_key, - &root_item.drop_progress); - printf("\t\tdrop "); - btrfs_print_key(&root_item.drop_progress); - printf(" level %d\n", root_item.drop_level); - } + + 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) @@ -438,215 +654,154 @@ static void print_free_space_header(struct extent_buffer *leaf, int slot) (unsigned long long)btrfs_free_space_bitmaps(leaf, header)); } -static void print_key_type(u64 objectid, u8 type) +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) { - printf("UNTYPED"); + fprintf(stream, "UNTYPED"); return; } - switch (type) { - case BTRFS_INODE_ITEM_KEY: - printf("INODE_ITEM"); - break; - case BTRFS_INODE_REF_KEY: - printf("INODE_REF"); - break; - case BTRFS_INODE_EXTREF_KEY: - printf("INODE_EXTREF"); - break; - case BTRFS_DIR_ITEM_KEY: - printf("DIR_ITEM"); - break; - case BTRFS_DIR_INDEX_KEY: - printf("DIR_INDEX"); - break; - case BTRFS_DIR_LOG_ITEM_KEY: - printf("DIR_LOG_ITEM"); - break; - case BTRFS_DIR_LOG_INDEX_KEY: - printf("DIR_LOG_INDEX"); - break; - case BTRFS_XATTR_ITEM_KEY: - printf("XATTR_ITEM"); - break; - case BTRFS_ORPHAN_ITEM_KEY: - printf("ORPHAN_ITEM"); - break; - case BTRFS_ROOT_ITEM_KEY: - printf("ROOT_ITEM"); - break; - case BTRFS_ROOT_REF_KEY: - printf("ROOT_REF"); - break; - case BTRFS_ROOT_BACKREF_KEY: - printf("ROOT_BACKREF"); - break; - case BTRFS_EXTENT_ITEM_KEY: - printf("EXTENT_ITEM"); - break; - case BTRFS_METADATA_ITEM_KEY: - printf("METADATA_ITEM"); - break; - case BTRFS_TREE_BLOCK_REF_KEY: - printf("TREE_BLOCK_REF"); - break; - case BTRFS_SHARED_BLOCK_REF_KEY: - printf("SHARED_BLOCK_REF"); - break; - case BTRFS_EXTENT_DATA_REF_KEY: - printf("EXTENT_DATA_REF"); - break; - case BTRFS_SHARED_DATA_REF_KEY: - printf("SHARED_DATA_REF"); - break; - case BTRFS_EXTENT_REF_V0_KEY: - printf("EXTENT_REF_V0"); - break; - case BTRFS_CSUM_ITEM_KEY: - printf("CSUM_ITEM"); - break; - case BTRFS_EXTENT_CSUM_KEY: - printf("EXTENT_CSUM"); - break; - case BTRFS_EXTENT_DATA_KEY: - printf("EXTENT_DATA"); - break; - case BTRFS_BLOCK_GROUP_ITEM_KEY: - printf("BLOCK_GROUP_ITEM"); - break; - case BTRFS_CHUNK_ITEM_KEY: - printf("CHUNK_ITEM"); - break; - case BTRFS_DEV_ITEM_KEY: - printf("DEV_ITEM"); - break; - case BTRFS_DEV_EXTENT_KEY: - printf("DEV_EXTENT"); - break; - case BTRFS_BALANCE_ITEM_KEY: - printf("BALANCE_ITEM"); - break; - case BTRFS_DEV_REPLACE_KEY: - printf("DEV_REPLACE_ITEM"); - break; - case BTRFS_STRING_ITEM_KEY: - printf("STRING_ITEM"); - break; - case BTRFS_QGROUP_STATUS_KEY: - printf("BTRFS_STATUS_KEY"); - break; - case BTRFS_QGROUP_RELATION_KEY: - printf("BTRFS_QGROUP_RELATION_KEY"); - break; - case BTRFS_QGROUP_INFO_KEY: - printf("BTRFS_QGROUP_INFO_KEY"); - break; - case BTRFS_QGROUP_LIMIT_KEY: - printf("BTRFS_QGROUP_LIMIT_KEY"); - break; - case BTRFS_DEV_STATS_KEY: - printf("DEV_STATS_ITEM"); - break; - case BTRFS_UUID_KEY_SUBVOL: - printf("BTRFS_UUID_KEY_SUBVOL"); - break; - case BTRFS_UUID_KEY_RECEIVED_SUBVOL: - printf("BTRFS_UUID_KEY_RECEIVED_SUBVOL"); - break; - default: - printf("UNKNOWN.%d", type); - }; + + if (key_to_str[type]) + fputs(key_to_str[type], stream); + else + fprintf(stream, "UNKNOWN.%d", type); } -static void print_objectid(u64 objectid, u8 type) +void print_objectid(FILE *stream, u64 objectid, u8 type) { switch (type) { case BTRFS_DEV_EXTENT_KEY: - printf("%llu", (unsigned long long)objectid); /* device id */ + /* device id */ + fprintf(stream, "%llu", (unsigned long long)objectid); return; case BTRFS_QGROUP_RELATION_KEY: - printf("%llu/%llu", objectid >> 48, - objectid & ((1ll << 48) - 1)); + fprintf(stream, "%llu/%llu", btrfs_qgroup_level(objectid), + btrfs_qgroup_subvid(objectid)); return; case BTRFS_UUID_KEY_SUBVOL: case BTRFS_UUID_KEY_RECEIVED_SUBVOL: - printf("0x%016llx", (unsigned long long)objectid); + fprintf(stream, "0x%016llx", (unsigned long long)objectid); return; } switch (objectid) { case BTRFS_ROOT_TREE_OBJECTID: if (type == BTRFS_DEV_ITEM_KEY) - printf("DEV_ITEMS"); + fprintf(stream, "DEV_ITEMS"); else - printf("ROOT_TREE"); + fprintf(stream, "ROOT_TREE"); break; case BTRFS_EXTENT_TREE_OBJECTID: - printf("EXTENT_TREE"); + fprintf(stream, "EXTENT_TREE"); break; case BTRFS_CHUNK_TREE_OBJECTID: - printf("CHUNK_TREE"); + fprintf(stream, "CHUNK_TREE"); break; case BTRFS_DEV_TREE_OBJECTID: - printf("DEV_TREE"); + fprintf(stream, "DEV_TREE"); break; case BTRFS_FS_TREE_OBJECTID: - printf("FS_TREE"); + fprintf(stream, "FS_TREE"); break; case BTRFS_ROOT_TREE_DIR_OBJECTID: - printf("ROOT_TREE_DIR"); + fprintf(stream, "ROOT_TREE_DIR"); break; case BTRFS_CSUM_TREE_OBJECTID: - printf("CSUM_TREE"); + fprintf(stream, "CSUM_TREE"); break; case BTRFS_BALANCE_OBJECTID: - printf("BALANCE"); + fprintf(stream, "BALANCE"); break; case BTRFS_ORPHAN_OBJECTID: - printf("ORPHAN"); + fprintf(stream, "ORPHAN"); break; case BTRFS_TREE_LOG_OBJECTID: - printf("TREE_LOG"); + fprintf(stream, "TREE_LOG"); break; case BTRFS_TREE_LOG_FIXUP_OBJECTID: - printf("LOG_FIXUP"); + fprintf(stream, "LOG_FIXUP"); break; case BTRFS_TREE_RELOC_OBJECTID: - printf("TREE_RELOC"); + fprintf(stream, "TREE_RELOC"); break; case BTRFS_DATA_RELOC_TREE_OBJECTID: - printf("DATA_RELOC_TREE"); + fprintf(stream, "DATA_RELOC_TREE"); break; case BTRFS_EXTENT_CSUM_OBJECTID: - printf("EXTENT_CSUM"); + fprintf(stream, "EXTENT_CSUM"); break; case BTRFS_FREE_SPACE_OBJECTID: - printf("FREE_SPACE"); + fprintf(stream, "FREE_SPACE"); break; case BTRFS_FREE_INO_OBJECTID: - printf("FREE_INO"); + fprintf(stream, "FREE_INO"); break; case BTRFS_QUOTA_TREE_OBJECTID: - printf("QUOTA_TREE"); + fprintf(stream, "QUOTA_TREE"); break; case BTRFS_UUID_TREE_OBJECTID: - printf("UUID_TREE"); + fprintf(stream, "UUID_TREE"); + break; + case BTRFS_FREE_SPACE_TREE_OBJECTID: + fprintf(stream, "FREE_SPACE_TREE"); break; case BTRFS_MULTIPLE_OBJECTIDS: - printf("MULTIPLE"); + fprintf(stream, "MULTIPLE"); break; case (u64)-1: - printf("-1"); + fprintf(stream, "-1"); break; case BTRFS_FIRST_CHUNK_TREE_OBJECTID: if (type == BTRFS_CHUNK_ITEM_KEY) { - printf("FIRST_CHUNK_TREE"); + fprintf(stream, "FIRST_CHUNK_TREE"); break; } /* fall-thru */ default: - printf("%llu", (unsigned long long)objectid); + fprintf(stream, "%llu", (unsigned long long)objectid); } } @@ -657,20 +812,31 @@ void btrfs_print_key(struct btrfs_disk_key *disk_key) u64 offset = btrfs_disk_key_offset(disk_key); printf("key ("); - print_objectid(objectid, type); + print_objectid(stdout, objectid, type); printf(" "); - print_key_type(objectid, type); + 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)", (unsigned long long)(offset >> 48), - (unsigned long long)(offset & ((1ll << 48) - 1))); + 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(" "); + print_objectid(stdout, offset, type); + printf(")"); + break; default: if (offset == (u64)-1) printf(" -1)"); @@ -699,99 +865,397 @@ static void print_uuid_item(struct extent_buffer *l, unsigned long offset, } } -void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l) +/* 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; - char *str; - struct btrfs_item *item; - struct btrfs_dir_item *di; - struct btrfs_inode_item *ii; - struct btrfs_file_extent_item *fi; - struct btrfs_block_group_item *bi; + 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; - struct btrfs_inode_ref *iref; - struct btrfs_inode_extref *iref2; + + 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; - struct btrfs_disk_key disk_key; - struct btrfs_block_group_item bg_item; - struct btrfs_dir_log_item *dlog; + 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; - struct btrfs_qgroup_status_item *qg_status; - u32 nr = btrfs_header_nritems(l); - u64 objectid; - u32 type; + + 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 btrfs_root *root, struct extent_buffer *eb) +{ + 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 %llu\n", - (unsigned long long)btrfs_header_bytenr(l), nr, - btrfs_leaf_free_space(root, l), - (unsigned long long)btrfs_header_generation(l), - (unsigned long long)btrfs_header_owner(l)); - print_uuids(l); + (unsigned long long)btrfs_header_bytenr(eb), nr, + btrfs_leaf_free_space(root, eb), + (unsigned long long)btrfs_header_generation(eb), + (unsigned long long)btrfs_header_owner(eb)); + printf("leaf %llu flags 0x%llx(%s) backref revision %d\n", + btrfs_header_bytenr(eb), flags, flags_str, backref_rev); + print_uuids(eb); fflush(stdout); - for (i = 0 ; i < nr ; i++) { + + for (i = 0; i < nr; i++) { + u32 item_size; + void *ptr; + u64 objectid; + u32 type; + u64 offset; + item = btrfs_item_nr(i); - btrfs_item_key(l, &disk_key, i); + item_size = btrfs_item_size(eb, item); + /* Untyped extraction of slot from btrfs_item_ptr */ + ptr = btrfs_item_ptr(eb, i, void*); + + btrfs_item_key(eb, &disk_key, i); objectid = btrfs_disk_key_objectid(&disk_key); type = btrfs_disk_key_type(&disk_key); + offset = btrfs_disk_key_offset(&disk_key); + printf("\titem %d ", i); btrfs_print_key(&disk_key); printf(" itemoff %d itemsize %d\n", - btrfs_item_offset(l, item), - btrfs_item_size(l, item)); + btrfs_item_offset(eb, item), + btrfs_item_size(eb, item)); if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID) - print_free_space_header(l, i); + print_free_space_header(eb, i); switch (type) { case BTRFS_INODE_ITEM_KEY: - ii = btrfs_item_ptr(l, i, struct btrfs_inode_item); - printf("\t\tinode generation %llu transid %llu size %llu block group %llu mode %o links %u\n", - (unsigned long long)btrfs_inode_generation(l, ii), - (unsigned long long)btrfs_inode_transid(l, ii), - (unsigned long long)btrfs_inode_size(l, ii), - (unsigned long long)btrfs_inode_block_group(l,ii), - btrfs_inode_mode(l, ii), - btrfs_inode_nlink(l, ii)); + print_inode_item(eb, ptr); break; case BTRFS_INODE_REF_KEY: - iref = btrfs_item_ptr(l, i, struct btrfs_inode_ref); - print_inode_ref_item(l, item, iref); + print_inode_ref_item(eb, item_size, ptr); break; case BTRFS_INODE_EXTREF_KEY: - iref2 = btrfs_item_ptr(l, i, struct btrfs_inode_extref); - print_inode_extref_item(l, item, iref2); + print_inode_extref_item(eb, item_size, ptr); break; case BTRFS_DIR_ITEM_KEY: case BTRFS_DIR_INDEX_KEY: case BTRFS_XATTR_ITEM_KEY: - di = btrfs_item_ptr(l, i, struct btrfs_dir_item); - print_dir_item(l, item, di); + print_dir_item(eb, item_size, ptr); break; case BTRFS_DIR_LOG_INDEX_KEY: - case BTRFS_DIR_LOG_ITEM_KEY: - dlog = btrfs_item_ptr(l, i, struct btrfs_dir_log_item); + case BTRFS_DIR_LOG_ITEM_KEY: { + struct btrfs_dir_log_item *dlog; + + dlog = btrfs_item_ptr(eb, i, struct btrfs_dir_log_item); printf("\t\tdir log end %Lu\n", - (unsigned long long)btrfs_dir_log_end(l, dlog)); - break; + (unsigned long long)btrfs_dir_log_end(eb, dlog)); + break; + } case BTRFS_ORPHAN_ITEM_KEY: printf("\t\torphan item\n"); break; case BTRFS_ROOT_ITEM_KEY: - print_root(l, i); + print_root_item(eb, i); break; case BTRFS_ROOT_REF_KEY: - print_root_ref(l, i, "ref"); + print_root_ref(eb, i, "ref"); break; case BTRFS_ROOT_BACKREF_KEY: - print_root_ref(l, i, "backref"); + print_root_ref(eb, i, "backref"); break; case BTRFS_EXTENT_ITEM_KEY: - print_extent_item(l, i, 0); + print_extent_item(eb, i, 0); break; case BTRFS_METADATA_ITEM_KEY: - print_extent_item(l, i, 1); + print_extent_item(eb, i, 1); break; case BTRFS_TREE_BLOCK_REF_KEY: printf("\t\ttree block backref\n"); @@ -800,22 +1264,14 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l) printf("\t\tshared block backref\n"); break; case BTRFS_EXTENT_DATA_REF_KEY: - dref = btrfs_item_ptr(l, i, 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(l, dref), - (unsigned long long)btrfs_extent_data_ref_objectid(l, dref), - (unsigned long long)btrfs_extent_data_ref_offset(l, dref), - btrfs_extent_data_ref_count(l, dref)); + print_extent_data_ref(eb, i); break; case BTRFS_SHARED_DATA_REF_KEY: - sref = btrfs_item_ptr(l, i, struct btrfs_shared_data_ref); - printf("\t\tshared data backref count %u\n", - btrfs_shared_data_ref_count(l, sref)); + print_shared_data_ref(eb, i); break; case BTRFS_EXTENT_REF_V0_KEY: #ifdef BTRFS_COMPAT_EXTENT_TREE_V0 - print_extent_ref_v0(l, i); + print_extent_ref_v0(eb, i); #else BUG(); #endif @@ -824,109 +1280,61 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l) printf("\t\tcsum item\n"); break; case BTRFS_EXTENT_CSUM_KEY: - printf("\t\textent csum item\n"); + print_extent_csum(eb, root->fs_info, item_size, + offset); break; case BTRFS_EXTENT_DATA_KEY: - fi = btrfs_item_ptr(l, i, - struct btrfs_file_extent_item); - print_file_extent_item(l, item, fi); + print_file_extent_item(eb, item, i, ptr); break; case BTRFS_BLOCK_GROUP_ITEM_KEY: - bi = btrfs_item_ptr(l, i, - struct btrfs_block_group_item); - read_extent_buffer(l, &bg_item, (unsigned long)bi, - sizeof(bg_item)); - printf("\t\tblock group used %llu chunk_objectid %llu flags %llu\n", - (unsigned long long)btrfs_block_group_used(&bg_item), - (unsigned long long)btrfs_block_group_chunk_objectid(&bg_item), - (unsigned long long)btrfs_block_group_flags(&bg_item)); + print_block_group_item(eb, ptr); + break; + case BTRFS_FREE_SPACE_INFO_KEY: + print_free_space_info(eb, i); + break; + case BTRFS_FREE_SPACE_EXTENT_KEY: + printf("\t\tfree space extent\n"); + break; + case BTRFS_FREE_SPACE_BITMAP_KEY: + printf("\t\tfree space bitmap\n"); break; case BTRFS_CHUNK_ITEM_KEY: - print_chunk(l, btrfs_item_ptr(l, i, struct btrfs_chunk)); + print_chunk_item(eb, ptr); break; case BTRFS_DEV_ITEM_KEY: - print_dev_item(l, btrfs_item_ptr(l, i, - struct btrfs_dev_item)); + print_dev_item(eb, ptr); break; case BTRFS_DEV_EXTENT_KEY: - dev_extent = btrfs_item_ptr(l, i, - struct btrfs_dev_extent); - printf("\t\tdev extent chunk_tree %llu\n" - "\t\tchunk objectid %llu chunk offset %llu " - "length %llu\n", - (unsigned long long) - btrfs_dev_extent_chunk_tree(l, dev_extent), - (unsigned long long) - btrfs_dev_extent_chunk_objectid(l, dev_extent), - (unsigned long long) - btrfs_dev_extent_chunk_offset(l, dev_extent), - (unsigned long long) - btrfs_dev_extent_length(l, dev_extent)); + print_dev_extent(eb, i); break; case BTRFS_QGROUP_STATUS_KEY: - qg_status = btrfs_item_ptr(l, i, - struct btrfs_qgroup_status_item); - printf("\t\tversion %llu generation %llu flags %#llx " - "scan %lld\n", - (unsigned long long) - btrfs_qgroup_status_version(l, qg_status), - (unsigned long long) - btrfs_qgroup_status_generation(l, qg_status), - (unsigned long long) - btrfs_qgroup_status_flags(l, qg_status), - (unsigned long long) - btrfs_qgroup_status_scan(l, qg_status)); + print_qgroup_status(eb, i); break; case BTRFS_QGROUP_RELATION_KEY: break; case BTRFS_QGROUP_INFO_KEY: - qg_info = btrfs_item_ptr(l, i, - struct btrfs_qgroup_info_item); - printf("\t\tgeneration %llu\n" - "\t\treferenced %lld referenced compressed %lld\n" - "\t\texclusive %lld exclusive compressed %lld\n", - (unsigned long long) - btrfs_qgroup_info_generation(l, qg_info), - (long long) - btrfs_qgroup_info_referenced(l, qg_info), - (long long) - btrfs_qgroup_info_referenced_compressed(l, - qg_info), - (long long) - btrfs_qgroup_info_exclusive(l, qg_info), - (long long) - btrfs_qgroup_info_exclusive_compressed(l, - qg_info)); + print_qgroup_info(eb, i); break; case BTRFS_QGROUP_LIMIT_KEY: - qg_limit = btrfs_item_ptr(l, i, - 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(l, qg_limit), - (long long) - btrfs_qgroup_limit_max_referenced(l, qg_limit), - (long long) - btrfs_qgroup_limit_max_exclusive(l, qg_limit), - (long long) - btrfs_qgroup_limit_rsv_referenced(l, qg_limit), - (long long) - btrfs_qgroup_limit_rsv_exclusive(l, qg_limit)); + print_qgroup_limit(eb, i); break; case BTRFS_UUID_KEY_SUBVOL: case BTRFS_UUID_KEY_RECEIVED_SUBVOL: - print_uuid_item(l, btrfs_item_ptr_offset(l, i), - btrfs_item_size_nr(l, i)); + print_uuid_item(eb, btrfs_item_ptr_offset(eb, i), + btrfs_item_size_nr(eb, i)); + break; + case BTRFS_STRING_ITEM_KEY: { + const char *str = eb->data + btrfs_item_ptr_offset(eb, i); + + printf("\t\titem data %.*s\n", item_size, str); break; - case BTRFS_STRING_ITEM_KEY: - /* dirty, but it's simple */ - str = l->data + btrfs_item_ptr_offset(l, i); - printf("\t\titem data %.*s\n", btrfs_item_size(l, item), str); + } + case BTRFS_PERSISTENT_ITEM_KEY: + print_persistent_item(eb, ptr, item_size, objectid, + offset); break; - case BTRFS_DEV_STATS_KEY: - printf("\t\tdevice stats\n"); + case BTRFS_TEMPORARY_ITEM_KEY: + print_temporary_item(eb, ptr, objectid, offset); break; }; fflush(stdout); @@ -935,11 +1343,11 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l) void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *eb, int follow) { - int i; + u32 i; u32 nr; - u32 size; struct btrfs_disk_key disk_key; struct btrfs_key key; + struct extent_buffer *next; if (!eb) return; @@ -951,12 +1359,11 @@ void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *eb, int fol printf("node %llu level %d items %d free %u generation %llu owner %llu\n", (unsigned long long)eb->start, btrfs_header_level(eb), nr, - (u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr, + (u32)BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) - nr, (unsigned long long)btrfs_header_generation(eb), (unsigned long long)btrfs_header_owner(eb)); print_uuids(eb); fflush(stdout); - size = btrfs_level_size(root, btrfs_header_level(eb) - 1); for (i = 0; i < nr; i++) { u64 blocknr = btrfs_node_blockptr(eb, i); btrfs_node_key(eb, &disk_key, i); @@ -965,7 +1372,7 @@ void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *eb, int fol btrfs_print_key(&disk_key); printf(" block %llu (%llu) gen %llu\n", (unsigned long long)blocknr, - (unsigned long long)blocknr / size, + (unsigned long long)blocknr / root->fs_info->nodesize, (unsigned long long)btrfs_node_ptr_generation(eb, i)); fflush(stdout); } @@ -973,23 +1380,35 @@ void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *eb, int fol return; for (i = 0; i < nr; i++) { - struct extent_buffer *next = read_tree_block(root, - btrfs_node_blockptr(eb, i), - size, - btrfs_node_ptr_generation(eb, i)); - if (!next) { + next = read_tree_block(root->fs_info, + btrfs_node_blockptr(eb, i), + btrfs_node_ptr_generation(eb, i)); + if (!extent_buffer_uptodate(next)) { fprintf(stderr, "failed to read %llu in tree %llu\n", (unsigned long long)btrfs_node_blockptr(eb, i), (unsigned long long)btrfs_header_owner(eb)); continue; } - if (btrfs_is_leaf(next) && - btrfs_header_level(eb) != 1) - BUG(); - if (btrfs_header_level(next) != - btrfs_header_level(eb) - 1) - BUG(); + if (btrfs_is_leaf(next) && btrfs_header_level(eb) != 1) { + warning( + "eb corrupted: item %d eb level %d next level %d, skipping the rest", + i, btrfs_header_level(next), + btrfs_header_level(eb)); + goto out; + } + if (btrfs_header_level(next) != btrfs_header_level(eb) - 1) { + warning( + "eb corrupted: item %d eb level %d next level %d, skipping the rest", + i, btrfs_header_level(next), + btrfs_header_level(eb)); + goto out; + } btrfs_print_tree(root, next, 1); free_extent_buffer(next); } + + return; + +out: + free_extent_buffer(next); }