superblock ondisk structure (xfs_sb.h) this is not the partition structure for XFS partition structure see XFS below More...

Public Attributes
dd	sb_magicnum

dd	sb_blocksize

DQ	sb_dblocks

DQ	sb_rblocks

DQ	sb_rextents

rb	sb_uuid

DQ	sb_logstart

DQ	sb_rootino

DQ	sb_rbmino

DQ	sb_rsumino

dd	sb_rextsize

dd	sb_agblocks

dd	sb_agcount

dd	sb_rbmblocks

dd	sb_logblocks

dw	sb_versionnum

dw	sb_sectsize

dw	sb_inodesize

dw	sb_inopblock

rb	sb_fname

db	sb_blocklog

db	sb_sectlog

db	sb_inodelog

db	sb_inopblog

db	sb_agblklog

db	sb_rextslog

db	sb_inprogress

db	sb_imax_pct

DQ	sb_icount

DQ	sb_ifree

DQ	sb_fdblocks

DQ	sb_frextents

DQ	sb_uquotino

DQ	sb_gquotino

dw	sb_qflags

db	sb_flags

db	sb_shared_vn

dd	sb_inoalignmt

dd	sb_unit

dd	sb_width

db	sb_dirblklog

db	sb_logsectlog

dw	sb_logsectsize

dd	sb_logsunit

dd	sb_features2

dd	sb_bad_features2

dd	sb_features_compat

dd	sb_features_ro_compat

dd	sb_features_incompat

dd	sb_features_log_incompat

dd	sb_crc

dd	sb_spino_align

DQ	sb_pquotino

DQ	sb_lsn

rb	sb_meta_uuid

Detailed Description

superblock ondisk structure (xfs_sb.h) this is not the partition structure for XFS partition structure see XFS below

Source: fs/xfs.inc:146

Member Data Documentation

◆ sb_agblklog

db xfs_sb::sb_agblklog

log2 of sb_agblocks (rounded up!)

◆ sb_agblocks

dd xfs_sb::sb_agblocks

size of an allocation group (the last one may be smaller!)

◆ sb_agcount

dd xfs_sb::sb_agcount

number of allocation groups

◆ sb_bad_features2

dd xfs_sb::sb_bad_features2

◆ sb_blocklog

db xfs_sb::sb_blocklog

log2 of sb_blocksize

◆ sb_blocksize

dd xfs_sb::sb_blocksize

block is the minimal file system unit, in bytes

◆ sb_crc

dd xfs_sb::sb_crc

superblock crc

◆ sb_dblocks

DQ xfs_sb::sb_dblocks

number of data blocks

◆ sb_dirblklog

db xfs_sb::sb_dirblklog

log2 of dir block size (fsbs)

◆ sb_fdblocks

DQ xfs_sb::sb_fdblocks

free data blocks

◆ sb_features2

dd xfs_sb::sb_features2

additional feature bits

◆ sb_features_compat

dd xfs_sb::sb_features_compat

◆ sb_features_incompat

dd xfs_sb::sb_features_incompat

◆ sb_features_log_incompat

dd xfs_sb::sb_features_log_incompat

◆ sb_features_ro_compat

dd xfs_sb::sb_features_ro_compat

◆ sb_flags

db xfs_sb::sb_flags

misc. flags

◆ sb_fname

rb xfs_sb::sb_fname

inodes per block (aka label)

◆ sb_frextents

DQ xfs_sb::sb_frextents

free realtime extents

◆ sb_gquotino

DQ xfs_sb::sb_gquotino

group quota inode

◆ sb_icount

DQ xfs_sb::sb_icount

statistics allocated inodes

◆ sb_ifree

DQ xfs_sb::sb_ifree

free inodes

◆ sb_imax_pct

db xfs_sb::sb_imax_pct

max % of fs for inode space

◆ sb_inoalignmt

dd xfs_sb::sb_inoalignmt

inode chunk alignment, fsblocks

◆ sb_inodelog

db xfs_sb::sb_inodelog

log2 of sb_inodesize

◆ sb_inodesize

dw xfs_sb::sb_inodesize

inode size, bytes

◆ sb_inopblock

dw xfs_sb::sb_inopblock

inodes per block

◆ sb_inopblog

db xfs_sb::sb_inopblog

log2 of sb_inopblock

◆ sb_inprogress

db xfs_sb::sb_inprogress

mkfs is in progress, don't mount

◆ sb_logblocks

dd xfs_sb::sb_logblocks

number of log blocks

◆ sb_logsectlog

db xfs_sb::sb_logsectlog

log2 of the log sector size

◆ sb_logsectsize

dw xfs_sb::sb_logsectsize

sector size for the log, bytes

◆ sb_logstart

DQ xfs_sb::sb_logstart

starting block of log (for internal journal)

◆ sb_logsunit

dd xfs_sb::sb_logsunit

stripe unit size for the log

◆ sb_lsn

DQ xfs_sb::sb_lsn

last write sequence

◆ sb_magicnum

dd xfs_sb::sb_magicnum

signature, must be XFS_SB_MAGIC

◆ sb_meta_uuid

rb xfs_sb::sb_meta_uuid

metadata file system unique id

◆ sb_pquotino

DQ xfs_sb::sb_pquotino

project quota inode

◆ sb_qflags

dw xfs_sb::sb_qflags

quota flags

◆ sb_rblocks

DQ xfs_sb::sb_rblocks

number of realtime blocks

◆ sb_rbmblocks

dd xfs_sb::sb_rbmblocks

number of rt bitmap blocks

◆ sb_rbmino

DQ xfs_sb::sb_rbmino

bitmap inode for realtime extents

◆ sb_rextents

DQ xfs_sb::sb_rextents

number of realtime extents

◆ sb_rextsize

dd xfs_sb::sb_rextsize

realtime extent size, blocks

◆ sb_rextslog

db xfs_sb::sb_rextslog

log2 of sb_rextents

◆ sb_rootino

DQ xfs_sb::sb_rootino

root inode number

◆ sb_rsumino

DQ xfs_sb::sb_rsumino

summary inode for rt bitmap

◆ sb_sectlog

db xfs_sb::sb_sectlog

log2 of sb_blocksize

◆ sb_sectsize

dw xfs_sb::sb_sectsize

volume sector size in bytes

◆ sb_shared_vn

db xfs_sb::sb_shared_vn

shared version number

◆ sb_spino_align

dd xfs_sb::sb_spino_align

sparse inode chunk alignment

◆ sb_unit

dd xfs_sb::sb_unit

stripe or raid unit

◆ sb_uquotino

DQ xfs_sb::sb_uquotino

user quota inode

◆ sb_uuid

rb xfs_sb::sb_uuid

file system unique identifier

◆ sb_versionnum

dw xfs_sb::sb_versionnum

header version

◆ sb_width

dd xfs_sb::sb_width

stripe or raid width

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

fs/xfs.inc

Public Attributes