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manpage: add options for set-option
Signed-off-by: Zhai Can <bczhc0@126.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Zhai Can
Kent Overstreet
parent
0b5a8c239b
commit
07d4e0e864
120
bcachefs.8
120
bcachefs.8
@ -248,6 +248,126 @@ List of sections to print
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.It Fl l , Fl -layout
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Print superblock layout
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.El
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.It Nm Ic set-option Oo Ar options Oc Ar device
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.Bl -tag -width Ds
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.It Fl -errors Ns = Ns ( Cm continue | ro | panic )
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Action to take on filesystem error
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.It Fl -metadata_replicas Ns = Ns Ar number
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Number of metadata replicas
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.It Fl -data_replicas Ns = Ns Ar number
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Number of data replicas
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.It Fl -metadata_replicas_required Ns = Ns Ar number
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.It Fl -data_replicas_required Ns = Ns Ar number
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.It Fl -metadata_checksum Ns = Ns ( Cm none | crc32c | crc64 | xxhash )
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Set metadata checksum type (default:
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.Cm crc32c ) .
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.It Fl -data_checksum Ns = Ns ( Cm none | crc32c | crc64 | xxhash )
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Set data checksum type (default:
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.Cm crc32c ) .
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.It Fl -compression Ns = Ns ( Cm none | lz4 | gzip | zstd )
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Set compression type (default:
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.Cm none ) .
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.It Fl -background_compression Ns = Ns ( Cm none | lz4 | gzip | zstd )
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.It Fl -str_hash Ns = Ns ( Cm crc32c | crc64 | siphash )
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Hash function for directory entries and xattrs
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.It Fl -metadata_target Ns = Ns Ar target
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Device or label for metadata writes
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.It Fl -foreground_target Ns = Ns Ar target
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Device or label for foreground writes
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.It Fl -background_target Ns = Ns Ar target
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Device or label to move data to in the background
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.It Fl -promote_target Ns = Ns Ar target
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Device or label to promote data to on read
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.It Fl -erasure_code
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Enable erasure coding (DO NOT USE YET)
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.It Fl -inodes_32bit
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Constrain inode numbers to 32 bits
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.It Fl -shared_inode_numbers
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Shared new inode numbers by CPU id
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.It Fl -inodes_use_key_cache
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Use the btree key cache for the inodes btree
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.It Fl -gc_reserve_percent Ns = Ns Ar percentage
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Percentage of disk space to reserve for copygc
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.It Fl -gc_reserve_bytes Ns = Ns Ar percentage
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Amount of disk space to reserve for copygc
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.sp
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This takes precedence over
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.Cm gc_reserve_percent
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if set
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.It Fl -root_reserve_percent Ns = Ns Ar percentage
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Percentage of disk space to reserve for superuser
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.It Fl -wide_macs
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Store full 128bits of cryptographic MACS, instead of 80
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.It Fl -acl
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Enable POSIX acls
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.It Fl -usrquota
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Enable user quotas
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.It Fl -grpquota
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Enable group quotas
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.It Fl prjquota
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Enable project quotas
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.It Fl degraded
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Allow mounting in degraded mode
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.It Fl -very_degraded
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Allow mounting in when data will be missing
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.It Fl -discard
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Enable discard/TRIM support
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.It Fl -verbose
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Extra debugging information during mount/recovery
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.It Fl -journal_flush_delay Ns = Ns Ar ms
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Delay in milliseconds before automatic journal commits
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.It Fl -journal_flush_disabled
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Disable journal flush on sync/fsync
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.sp
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If enabled, writes can be lost, but only since the
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last journal write (default 1 second)
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.It Fl -journal_reclaim_delay Ns = Ns Ar ms
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Delay in milliseconds before automatic journal reclaim
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.It Fl -move_bytes_in_flight Ns = Ns Ar bytes
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Maximum Amount of IO to keep in flight by the move path
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.It Fl -move_ios_in_flight Ns = Ns Ar number
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Maximum number of IOs to keep in flight by the move path
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.It Fl -fsck
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Run fsck on mount
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.It Fl -fix_errors Ns = Ns Ar error
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Fix errors during fsck without asking
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.It Fl -ratelimit_errors
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Ratelimit error messages during fsck
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.It Fl -nochanges
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Super read only mode - no writes at all will be issued,
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even if we have to replay the journal
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.It Fl -norecovery
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Don't replay the journal
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.It Fl -journal_transaction_names
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Log transaction function names in journal
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.It Fl -noexcl
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Don't open device in exclusive mode
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.It Fl -direct_io
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Use O_DIRECT (userspace only)
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.It Fl -sb Ns = Ns Ar offset
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Sector offset of superblock
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.It Fl -reconstruct_alloc
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Reconstruct alloc btree
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.It Fl -version_upgrade Ns = Ns ( Cm compatible | incompatible | none )
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Set superblock to latest version, allowing any new features
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to be used
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.It Fl -nocow
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Nocow mode: Writes will be done in place when possible.
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.sp
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Snapshots and reflink will still caused writes to be COW.
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.sp
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This flag implicitly disables data checksumming, compression and
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encryption.
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.It Fl -nocow_enabled
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Enable nocow mode: enables runtime locking in data
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move path needed if nocow will ever be in use
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.It Fl -no_data_io
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Skip submit_bio() for data reads and writes,
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for performance testing purposes
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.El
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.El
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.Sh Mount commands
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.Bl -tag -width Ds
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