superblock Struct Reference

#include <btrfs.h>

Collaboration diagram for superblock:

Public Attributes
uint8_t	checksum [32]
BTRFS_UUID	uuid
uint64_t	sb_phys_addr
uint64_t	flags
uint64_t	magic
uint64_t	generation
uint64_t	root_tree_addr
uint64_t	chunk_tree_addr
uint64_t	log_tree_addr
uint64_t	log_root_transid
uint64_t	total_bytes
uint64_t	bytes_used
uint64_t	root_dir_objectid
uint64_t	num_devices
uint32_t	sector_size
uint32_t	node_size
uint32_t	leaf_size
uint32_t	stripe_size
uint32_t	n
uint64_t	chunk_root_generation
uint64_t	compat_flags
uint64_t	compat_ro_flags
uint64_t	incompat_flags
uint16_t	csum_type
uint8_t	root_level
uint8_t	chunk_root_level
uint8_t	log_root_level
DEV_ITEM	dev_item
char	label [MAX_LABEL_SIZE]
uint64_t	cache_generation
uint64_t	uuid_tree_generation
BTRFS_UUID	metadata_uuid
uint64_t	reserved [28]
uint8_t	sys_chunk_array [SYS_CHUNK_ARRAY_SIZE]
superblock_backup	backup [BTRFS_NUM_BACKUP_ROOTS]
uint8_t	reserved2 [565]

Detailed Description

Definition at line 223 of file btrfs.h.

Member Data Documentation

backup

superblock_backup superblock::backup[BTRFS_NUM_BACKUP_ROOTS]

Definition at line 258 of file btrfs.h.

bytes_used

uint64_t superblock::bytes_used

Definition at line 235 of file btrfs.h.

Referenced by update_backup_superblock(), and write_superblocks().

cache_generation

uint64_t superblock::cache_generation

Definition at line 253 of file btrfs.h.

Referenced by write_superblocks().

checksum

uint8_t superblock::checksum[32]

Definition at line 224 of file btrfs.h.

Referenced by calc_superblock_checksum(), and check_superblock_checksum().

chunk_root_generation

uint64_t superblock::chunk_root_generation

Definition at line 243 of file btrfs.h.

Referenced by write_superblocks().

chunk_root_level

uint8_t superblock::chunk_root_level

Definition at line 249 of file btrfs.h.

Referenced by btrfs_read_chunk_tree(), and update_backup_superblock().

chunk_tree_addr

uint64_t superblock::chunk_tree_addr

Definition at line 231 of file btrfs.h.

Referenced by update_backup_superblock(), and write_superblocks().

compat_flags

uint64_t superblock::compat_flags

Definition at line 244 of file btrfs.h.

compat_ro_flags

uint64_t superblock::compat_ro_flags

Definition at line 245 of file btrfs.h.

csum_type

uint16_t superblock::csum_type

Definition at line 247 of file btrfs.h.

Referenced by calc_superblock_checksum(), check_superblock_checksum(), and write_superblocks().

dev_item

DEV_ITEM superblock::dev_item

Definition at line 251 of file btrfs.h.

Referenced by add_volume_device(), find_devices(), is_device_part_of_mounted_btrfs_raid(), is_mounted_multi_device(), write_superblock(), and write_superblocks().

flags

uint64_t superblock::flags

Definition at line 227 of file btrfs.h.

Referenced by add_volume_device(), btrfs_read_chunk_tree(), and write_superblocks().

generation

uint64_t superblock::generation

Definition at line 229 of file btrfs.h.

Referenced by add_volume_device(), device_still_valid(), read_superblock(), test_vol(), and write_superblocks().

incompat_flags

uint64_t superblock::incompat_flags

Definition at line 246 of file btrfs.h.

Referenced by write_superblocks().

label

char superblock::label[MAX_LABEL_SIZE]

Definition at line 252 of file btrfs.h.

Referenced by write_superblocks().

leaf_size

uint32_t superblock::leaf_size

Definition at line 240 of file btrfs.h.

Referenced by write_superblocks().

log_root_level

uint8_t superblock::log_root_level

Definition at line 250 of file btrfs.h.

log_root_transid

uint64_t superblock::log_root_transid

Definition at line 233 of file btrfs.h.

log_tree_addr

uint64_t superblock::log_tree_addr

Definition at line 232 of file btrfs.h.

magic

uint64_t superblock::magic

Definition at line 228 of file btrfs.h.

Referenced by device_still_valid(), is_device_part_of_mounted_btrfs_raid(), is_mounted_multi_device(), read_superblock(), still_has_superblock(), verify_device(), and write_superblocks().

metadata_uuid

BTRFS_UUID superblock::metadata_uuid

Definition at line 255 of file btrfs.h.

n

uint32_t superblock::n

Definition at line 242 of file btrfs.h.

Referenced by write_superblocks().

node_size

uint32_t superblock::node_size

Definition at line 239 of file btrfs.h.

Referenced by read_superblock(), try_tree_amalgamate(), and write_superblocks().

num_devices

uint64_t superblock::num_devices

Definition at line 237 of file btrfs.h.

Referenced by add_volume_device(), btrfs_read_chunk_tree(), update_backup_superblock(), verify_volume(), and write_superblocks().

reserved

uint64_t superblock::reserved[28]

Definition at line 256 of file btrfs.h.

reserved2

uint8_t superblock::reserved2[565]

Definition at line 259 of file btrfs.h.

root_dir_objectid

uint64_t superblock::root_dir_objectid

Definition at line 236 of file btrfs.h.

Referenced by write_superblocks().

root_level

uint8_t superblock::root_level

Definition at line 248 of file btrfs.h.

Referenced by update_backup_superblock().

root_tree_addr

uint64_t superblock::root_tree_addr

Definition at line 230 of file btrfs.h.

Referenced by update_backup_superblock(), and write_superblocks().

sb_phys_addr

uint64_t superblock::sb_phys_addr

Definition at line 226 of file btrfs.h.

Referenced by write_superblock(), and write_superblocks().

sector_size

uint32_t superblock::sector_size

Definition at line 238 of file btrfs.h.

Referenced by add_volume_device(), read_superblock(), scrub_chunk(), scrub_chunk_raid56(), and write_superblocks().

stripe_size

uint32_t superblock::stripe_size

Definition at line 241 of file btrfs.h.

Referenced by write_superblocks().

sys_chunk_array

uint8_t superblock::sys_chunk_array[SYS_CHUNK_ARRAY_SIZE]

Definition at line 257 of file btrfs.h.

Referenced by btrfs_read_sys_chunk_array(), and write_superblocks().

total_bytes

uint64_t superblock::total_bytes

Definition at line 234 of file btrfs.h.

Referenced by update_backup_superblock(), and write_superblocks().

uuid

BTRFS_UUID superblock::uuid

Definition at line 225 of file btrfs.h.

Referenced by add_volume_device(), calc_superblock_checksum(), check_superblock_checksum(), find_devices(), is_device_part_of_mounted_btrfs_raid(), is_mounted_multi_device(), test_vol(), verify_device(), and write_superblocks().

uuid_tree_generation

uint64_t superblock::uuid_tree_generation

Definition at line 254 of file btrfs.h.

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The documentation for this struct was generated from the following file:

• drivers/filesystems/btrfs/btrfs.h