Changes (btrfs-progs)

btrfs-progs-6.16.1 (2025-09-10)

• mkfs:

  • add option --reflink, when used with --rootdir clone file extents instead of copying (requires source and target image on the same filesystem)

  • improved tracking of inodes and subvolumes for option --inode-flags

  • fix initializing raid-stripe-tree

  • extend what is trimmed/discarded during initialization (temporary chunks, free space)

• check: detect duplicate file names in directory items

• inspect tree-stats: accept string names for option -t

• receive: allow to dump stream from different user

• other:

  • updated documentation

  • new and updated tests

btrfs-progs-6.10.1 (2024-08-15)

• mkfs: rework --rootdir traversal, skip hardlinks and create new inodes instead, also warn about them, this did not work as expected and will be fixed in the future

• receive: search in older trees for UUIDs when detecting clone sources

• libbtrfsutil: bindings available at https://pypi.org/project/btrfsutil

• libbtrfs:

  • patchlevel version update 0.1.4

  • cleanup in headers, removed unused definitions, no functional changes

  • don’t ship list.h and rbtree.h

• other:

  • documentation updates

btrfs-progs-6.9.1 (2024-06-24)

• fix detection of intermediate super block flags (e.g. csum change and other conversions)

• raid-stripe-tree support (still experimental):

  • moved under experimental build flags (mkfs, convert)

  • format change, removed encoding type; backward incompatible

• receive dump: escape special chars in xattr names and values, and clone source path

• tune change csum: fix reservation size when starting a transaction

• other:

  • new and updated tests

  • updated CI images, new reference build targets

  • cleanups and refactoring

btrfs-progs-6.9.2 (2024-06-27)

• subvol list: fix accidental trimming of subvolume name

• check: revert checking file extent item ‘ram_bytes’

• libbtrfsutil:

  • patchlevel version update 1.3.2

  • fix accidentally closing fd passed to subvolume iterator

btrfs-progs-6.8.1 (2024-05-02)

• mkfs: fix writing on zoned device when block-group-tree is selected

• tune: fix writing on zoned device with option --convert-to-block-group-tree

• check:

  • more progress and error messages

  • unify handling of unknown command line options with other commands

• subvolume delete: remove options --delete-qgroup and --no-delete-qgroup (added in 6.6.3), qgroup deletion does not always work due to delayed background processing of subvolume or set value in sysfs:ggroup/drop_subtree_threshold

• other:

  • misc refactoring

  • error handling fixes reported by gcc -fanalyzer

  • documentation updates

  • new and updated tests

btrfs-progs-6.7.1 (2024-02-14)

• convert: raid-stripe-tree can be now enabled for the target filesystem

• mkfs:

  • handle lifetime of open file descriptors so it does not trigger udev that could miss to create the UUID symlinks in /dev

  • update warning when CPU page size does not match sector size

  • merge features in summary, no more distinction of incompat and runtime to match the semantics of option -O

• fi show: fix recognizing raw device mapper paths

• other:

  • CI updates, build images updates

  • minor cleanups

  • minor sync with kernel

  • documentation updates, fix links to labels in included directories

btrfs-progs-6.6.1 (2023-11-05)

• fix device scanning ioctl definition, accidental change to the ‘forget’ ioctl that breaks mounting multi-device filesystems

btrfs-progs-6.6.2 (2023-11-15)

• squota: change key number of EXTENT_OWNER_REF_KEY, sync with kernel 6.7-rc1

• property set/get: completely skip char devices, trying to set properties and open /dev/watchdog* causes a reboot

• other: build warnings, test updates, documentation updates

btrfs-progs-6.6.3 (2023-12-14)

• subvol create: accept multiple arguments

• subvol delete: print the subvolume id in the output

• subvol sync: check if the filesystems is still writeable so it does not wait indefinitely

• device delete: add a timeout and warning when deleting multiple devices

• scrub status: report limit if set in sysfs/../scrub_speed_max

• scrub limit: new command to show or set the per-device scrub limits

• scrub start: report the limit if set

• build:

  • fix CPU feature detection on aarch64

  • support Botan and OpenSSL (3.2+) as crypto backends

• other:

  • documentation updates, RTD config update

  • new and updated tests

  • CI updates

btrfs-progs-6.5.1 (2023-09-13)

• build fixes:

  • crc32c if PIE or relro is enabled

  • detect if PCLMUL feature is recognized by compiler and also detect that at runtime

• check: verify metadata item level when skinny-metadata is enabled

• other: minor build and docs updates

btrfs-progs-6.5.2 (2023-10-03)

• new feature support:

  • raid-stripe-tree, new tree to track extent mapping for raid profiles, allows raid1*, raid0 and raid10 on zoned devices (kernel 6.7)

  • simple quotas, simplified accounting that does not track exclusive and shared extents (kernel 6.7)

  • mkfs with duplicate UUID on a single device, temp-fsid (kernel 6.7)

• metadata_uuid: enhanced capabilities to repair partially updated fsid on multiple devices

• other:

  • updated tests and CI

  • sync sources with kernel

btrfs-progs-6.5.3 (2023-10-21)

• mkfs:

  • add short aliases for -O specification, block-group-tree (bgt), free-space-tree (fst), raid-stripe-tree (rst)

  • don’t try to resize the image (namely when backed by file) when --rootdir contains sparse file larger than the image

  • also copy xattr/permissions/ugid/timestamps of the top --rootdir directory

  • add new option --device-uuid to let user specify exact uuid of the device item (only for single device filesystems)

• check:

  • on zoned devices, use correct super block offsets when repairing

  • check inline extent refs order

• subvolume create: add new option --parent to create missing path components of the given path (like mkdir -p)

• rescue clear-ino-cache: new command moved from ‘btrfs check’ implementing the same as option --clear-ino-cache (to be deprecated and removed in the future)

• dump-tree: allow ‘-’ in tree identifier names for option -t

• btrfstune:

  • drop short option and add long option to enable squota

  • tune space reservation and batch size for block-group-tree conversion

• scrub status: print correct value of “Bytes scrubbed” for unfinished runs

• qgroup show: fix crash when attempting to print path of stale qgroups

• experimental features:

  • move build of raid-stripe-tree out for testing but it’s still considered experimental

• other:

  • shell completion updates

  • sync raid-stripe-tree code with kernel

  • build fixes

  • new and updated tests

btrfs-progs-6.3.1 (2023-05-29)

• convert: fix checksum of a block relocated from 0-1M range

• qgroup show: fix formatting of limit values in json output

• receive: report parent subvol UUID on errors

• btrfstune: new option --convert-to-free-space-tree to convert from block-group-tree back to extent tree for block group tracking

• mkfs: make option --rootdir more verbose and report start when filling from the given directory starts

• experimental:

  • btrfstune: checksum switch logic reimplemented, conversion of all metadata and data now works, resume from various states also supported

• other:

  • more CI github actions test coverage

  • more kernel/userspace source code sync

  • warning fixes

  • code cleanups

  • documentation updates

btrfs-progs-6.3.2 (2023-06-15)

• fix mkfs and others on big endian hosts

• mkfs: don’t print changed defaults notice with --quiet

• scrub: fix wrong stats of processed bytes in background and foreground mode

• convert: actually create free-space-tree instead of v1 space cache

• print-tree: recognize and print CHANGING_FSID_V2 flag (for the metadata_uuid change in progress)

• other: documentation updates

btrfs-progs-6.3.3 (2023-07-27)

• add btrfs-find-root to btrfs.box

• replace: properly enqueue if there’s another replace running

• other:

  • CI updates, more tests enabled, code coverage, badges

  • documentation updates

  • build warning fixes

btrfs-progs-6.2.1 (2023-02-03)

• fix build with crypto libraries

• CI images updated, build tests extended

btrfs-progs-6.2.2 (2023-03-25)

• fix build on old x86 architectures with builtin crypto

• device stats: fix printing wrong values in tabular output

• qgroup show: fix qgroup id formatting in json output

• restore: fix restoring xattrs on directories

• restore: don’t modify metadata in dry-run mode

• balance: fix some cases wrongly parsed as old syntax

• balance: warn when deprecated syntax is used

• seeding: fall back to old way if sysfs device fsid is not available

• convert: handle orphan file ext4 feature

• other:

  • sync ioctl definitions

  • enable github CI

  • update documentation

btrfs-progs-6.1.1 (2023-01-03)

• subvol list: fix printing of UUID

• revert changes to ctree.h regarding qgroup items, breaks build of several applications

• hide __init definition in kerncompat.h, may break build

btrfs-progs-6.1.2 (2023-01-05)

• revert libbtrfs changes to v6.0.2, fix remaining build problems

btrfs-progs-6.1.3 (2023-01-25)

• fi mkswapfile: fix setting size

• mkfs: check zoned support of libblkid

• check: improve error messages for mismatched references

• other:

  • pass CFLAGS to static build

  • documentation updates

btrfs-progs-6.0.1 (2022-11-04)

• send: minor speed up for v2 due to increased buffer size

• resize: invalid command line options fail with error code

• quota rescan:

  • add long options --status and --wait

  • new option to wait but don’t start rescan

• qgroup show: print path by default, updated format

• qgroup: new subcommand clear-stale, remove qgroups without their subvolumes

• experimental:

  • add warnings to commands that have it enabled (mkfs, image, btrfstune)

• other:

  • documentation, help text, error message updates

btrfs-progs-6.0.2 (2022-11-24)

• fixes:

  • resize cancel did not work in some cases

  • fix fileattr stream command format and add workaround when it cannot be applied

  • properly handle degraded raid56 reads

  • fi defrag: fix verbosity, don’t print file names by default

  • receive: fix silent data loss after fall back from encoded write

• fi mkswapfile: new command to create a formatted swapfile in one go

btrfs-progs-5.19 (2022-08-16)

• send: support protocol version 2

• fi show: print all missing devices

• device stats: add tabular output

• replace: add alias to device group (device replace)

• check: validate free space tree items

• fixes:

  • convert: support large filesystems (block count > 32bit)

  • recognize filesystems with verity enabled

  • mkfs and DUP could write out of order, fix it for zoned mode

• build:

  • optional support for LZO and ZSTD in receive

  • compatibility with glibc 2.36 (mount.h)

  • add fallbacks for new GCC builtins

• other:

  • corrupt-block: target specific items, offsets

  • documentation updates, new pages from wiki

  • new tests

btrfs-progs-5.19.1 (2022-09-12)

• fix memory leaks (extent buffer, path)

• check: verify block device size vs item

• rescue fix-device-size: allow to shrink device item

• receive: fix crash on wrong pointer free()

• other:

  • experimental: support for block-group-tree

  • documentation updates

  • new tests

btrfs-progs-5.18 (2022-05-25)

• fixes:

  • dump-tree: don’t print trailing zeros in checksums

  • recognize paused balance as exclusive operation state, allow to start device add

  • convert: properly initialize target filesystem label

  • mkfs: don’t create free space bitmaps for empty filesystem

• restore: make lzo support build-time configurable, print supported compression in help text

• update kernel-lib sources

• other:

  • documentation updates, finish conversion to RST, CHANGES and INSTALL could be included into RST

  • fix build detection of experimental mode

  • new tests

btrfs-progs-5.18.1 (2022-06-06)

• fixes:

  • convert: fix self reference of toplevel directory

  • build: make kernel lib headers compatible with C++

• zoned mode: verify minimum zone size 4MiB

• libbtrfs: cleanups, merge headers and remove declarations of unexported symbols

• other: documentation updates

btrfs-progs-5.17 (2022-04-26)

• check:

  • repair wrong num_devices in superblock

  • recognize overly long xattr names

  • fix wrong total bytes check for seed device

• auto-repair on read on RAID56

• property set: unify handling of empty value to mean default, changed meaning for property ‘compression’ to allow reset to default and to set NOCOMPRESS, since kernel 5.14

• fixes:

  • dump-tree: print fs-verity items

  • fix location of system chunk on zoned filesystem

  • do not allow setting seeding flag on a filesystem with dirty log

  • mkfs and subpage support: use sectorsize as nodesize fallback for mixed profiles

• preparatory work for extent tree v2, global roots

• experimental feature (unstable interface, not built by default,

  do not use for production) * btrfstune: option --csum to switch checksum algorithm

• other:

  • cleanups, refactoring

  • update documentation build, remove asciidoc leftovers

  • update fssum to consider xattrs

  • add fsstress

btrfs-progs-5.16 (2022-01-12)

• rescue: new subcommand clear-uuid-tree to fix failed mount due to bad uuid subvolume keys, caught by tree-checker

• fi du: skip inaccessible files

• prop: properly resolve to symlink targets

• send, receive: fix crash after parent subvolume lookup errors

• build:

  • fix build on 5.12+ kernels due to changes in linux/kernel.h

  • fix build on musl with old kernel headers

• other:

  • error handling fixes, cleanups, refactoring

  • extent tree v2 preparatory work

  • lots of RST documentation updates (last release with asciidoc sources), https://btrfs.readthedocs.io

btrfs-progs-5.16.1 (2022-02-04)

• mkfs: support DUP on metadata on zoned devices

• subvol delete: drop warning for root when search ioctl fails

• check:

  • fix --init-csum-tree to not create checksums for extents that are not supposed to have them

  • add check for metadata item levels

• add udev rule for zoned devices as they require mq-deadline

• build: fix redefinition of ALIGN on mixed old/new kernel/userspace (5.11)

• other:

  • typo fixes

  • new tests

  • CI targets updated

btrfs-progs-5.16.2 (2022-02-16)

• mkfs: fix detection of profile type for zoned mode when creating DUP

• build:

  • add missing stub for zoned mode helper when zoned mode not enabled

  • fix 64bit types on MIPS and PowerPC

  • improved zoned mode support autodetection, for systems with existing blkzone.h header but missing support for zone capacity

• other:

  • doc updates

  • test updates

btrfs-progs-5.15 (2021-11-05)

• mkfs: new defaults!

  • no-holes

  • free-space-tree

  • DUP for metadata unconditionally

• libbtrfsutil

  • add missing profile defines

• libbtrfs

  • minimize its impact on the other code, refactor and separate implementation where needed, cleanup afterwards, reduced header exports

• documentation

  • introduce sphinx build and RST versions of manual pages, will become the new format and replace asciidoc

• fixes:

  • fix warning regarding v1 space cache when only v2 (free space tree) is enabled

• other

  • lots of cleanups and refactoring

  • zoned mode uses direct io for file backed images

  • new and updated tests

btrfs-progs-5.15.1 (2021-11-22)

• fixes:

  • fi usage: fix wrongly reported space of used or unallocated space

  • fix detection of block device discard capability

• check: add more sanity checks for checksum items

• build: make sphinx optional backend for documentation

btrfs-progs-5.14 (2021-09-10)

• convert:

  • new option --uuid to copy, generate or set a given uuid

  • improve output

• mkfs:

  • allow to create degenerate raid0 (on 1 device) and raid10 (on 2 devices)

• image:

  • improved error messages

  • fix some alignment of restored image

• subvol delete: allow to delete by id when path is not resolvable

• check:

  • require alignment of nodesize for 64k page systems

  • detect and fix invalid block groups

• libbtrfs (deprecated):

  • remove most exported symbols, leave only a few that are used by snapper

  • no version change (still 0.1)

  • remove btrfs-list.h, btrfsck.h

• fixes:

  • reset generation of space v1 if v2 is used

  • fi us: don’t wrongly report missing device size when partition is not readable

• other:

  • build: experimental features

  • build: better detection of 64bit timestamp support for ext4

  • corrupt-block: block group items

  • new and updated tests

  • refactoring

• experimental features:

  • new image dump format, with data

btrfs-progs-5.14.1 (2021-09-20)

• fixes:

  • defrag: fix parsing of compression (option -c)

  • add workaround for old kernels when reading zone sizes

  • let only check and restore open the fs with transid failures, namely preventing btrfstune to do so

  • convert: --uuid copy does not fail on duplicate uuids

btrfs-progs-5.14.2 (2021-10-08)

• fixes

  • zoned mode

    • properly detect non-zoned devices in emulation mode

    • properly create quota tree

    • raid1c3/4 also excluded from unsupported profiles

  • use sysfs-based detection of device discard capability, fix mkfs-time trim for non-standard devices

  • mkfs: fix creation of populated filesystem with free space tree

  • detect multipath devices (needs libudev)

• replace start: add option -K/--nodiscard, similar to what mkfs or device add has

• dump-tree: print complete root_item

• mkfs: add option --verbose

• sb-mod: better help, no checksum calculation on read-only actions

• subvol show:

  • print more information (regarding send and receive)

  • print warning if read-write subvolume has received_uuid set

• property set:

  • add parameter -f to force changes

  • changing ro->rw switch now needs -f if subvolume has received_uuid set, (see documentation)

• build

  • optional libudev (on by default)

• other

  • remove deprecated support for CREATE_ASYNC bit for subvolume ioctl

  • CI updates

  • new and updated tests

btrfs-progs-5.13 (2021-07-13)

• restore: remove loop checks for extent count and directory scan

• inspect dump-tree: new options to print node (--csum-headers) and data checksums (--csum-items)

• fi usage:

  • print stripe count for striped profiles

  • print zoned information: size, total unusable

• mkfs: print note about sha256 accelerated module loading issue

• check: ability to reset dev_item::bytes_used

• fixes

  • detect zoned kernel support at run time too

  • exclusive op running check return value

• fi resize: support cancel (kernel 5.14)

• device remove: support cancel (kernel 5.14)

• documentation about general topics

  • compression

  • zoned mode

  • storage model

  • hardware considerations

• other

  • libbtrfsutil API overview

  • help text fixes and updates

  • hash speedtest measure time, cycles using perf and print throughput

btrfs-progs-5.13.1 (2021-07-30)

• build: fix build on musl libc due to missing definition of NAME_MAX

• check:

  • batch more work into one transaction when clearing v1 free space inodes

  • detect directories with wrong number of links

• libbtrfsutil: fix race between subvolume iterator and deletion

• mkfs: be more specific about supported profiles for zoned device

• other:

  • documentation updates

btrfs-progs-5.12 (2021-05-10)

• libbtrfsutil: relicensed to LGPL v2.1+

• mkfs: zoned mode support (kernel 5.12+)

• fi df: show zone_unusable per profile type in zoned mode

• fi usage: show total amount of zone_unusable

• fi resize: fix message for exact size

• image: fix warning and enlarge output file if necessary

• core

  • refactor chunk allocator for more modes

  • implement zoned mode support: allocation and writes, sb log

  • crypto/hash refactoring and cleanups

  • refactoring and cleanups

• other

  • test updates

  • CI updates

  • travis-ci integration disabled

  • docker images updated, more coverage

  • incomplete build support for Android removed

• doc updates

  • chattr mode m for ‘NOCOMPRESS”

  • swapfile used from fstab

  • how to add a new export to libbtrfsutil

  • update status of mount options since 5.9

btrfs-progs-5.12.1 (2021-05-13)

• build: fix missing symbols in libbtrfs

• mkfs: check for minimal number of zones

• check: fix warning about cache generation when free space tree is enabled

• fix superblock write in zoned mode on 16K pages

btrfs-progs-5.11 (2021-03-05)

• fix device path canonicalization for device mapper devices

• receive: remove workaround for setting capabilities, all stable kernels have been patched

• receive: fix duplicate mount path detection

• rescue: new subcommand create-control-device

• device stats: minor fix for plain text format output

• build: detect if e2fsprogs support 64bit timestamps

• build: drop libmount, required functionality has been reimplemented

• mkfs: warn when raid56 is used

• balance convert: warn when raid56 is used

• other

  • new and updated tests

  • documentation updates

    • seeding device

    • raid56 status

  • CI updates

    • docker images for various distros

btrfs-progs-5.11.1 (2021-03-24)

• properly format checksums when a mismatch is reported

• check: fix false alert on tree block crossing 64K page boundary

• convert:

  • refuse to convert filesystem with ‘needs_recovery’

  • update documentation to require fsck before conversion

• balance convert: fix raid56 warning when converting other profiles

• fi resize: improved summary

• other

  • build: fix checks and autoconf defines

  • fix symlink paths for CI support scripts

  • updated tests

btrfs-progs-5.10 (2021-01-18)

• scrub status:

  • print percentage of progress

  • add size unit options

• fi usage: also print free space from statfs

• convert: copy full 64 bit timestamp from ext4 if available

• check:

  • add ability to repair extent item generation

  • new option to remove leftovers from inode number cache (-o inode_cache)

• check for already running exclusive operation (balance, device add/…) when starting one

• preliminary json output support for ‘device stats’

• fixes:

  • subvolume set-default: id 0 correctly falls back to toplevel

  • receive: align internal buffer to allow fast CRC calculation

  • logical-resolve: distinguish -o subvol and bind mounts

• build: new dependency libmount

• other

  • doc fixes and updates

  • new tests

  • ci on gitlab temporarily disabled

  • debugging output enhancements

btrfs-progs-5.10.1 (2021-02-05)

• static build works again

• other:

  • add a way to test static binaries with the testsuite

  • clarify scrub docs

  • update dependencies, minimum version for libmount is 2.24, this may change in the future

btrfs-progs-5.9 (2020-10-23)

• mkfs:

  • switch default to single profile for multi-device filesystem, up to now it was raid0 that may not be simple to convert to some other profile as raid0 needs a workspace on all device for that

  • new option -R for run-time options (eg. mount time enabled), now understands free-space-tree

• subvolume delete:

  • refuse to delete the default subvolume (kernel will not allow that but the error reason is not obvious)

  • warn on EPERM, eg. if send is on progress on the subvolume

• convert:

  • fix 32bit overflows on large filesystems

  • improved error handling and error messages

  • check free space taking fragmentation into account

• check:

  • detect and repair wrong inode generation

  • minor improvement in error reporting on roots

• libbtrfsutils: follow main package versioning (5.9)

  • add pkg-config file definitions

• python-btrfsutil: follow main package versioning (5.9)

• inspect tree-stats: print node counts for each level, fanout

• other:

  • docs:

    • remove obsolete mount options (alloc_start, subvolrootid)

    • deleting default subvolume is not permitted

  • updated or fixed tests

  • .editorconfig updates

  • move files to kernel-shared/

  • CI:

    • updated to use zstd 1.4.5

    • fix reiserfs build

    • more builds with asan, ubsan

  • sb-mod updates

  • build:

    • print .so versions of libraries in configure summary

btrfs-progs-5.8 (skipped)

btrfs-progs-5.7 (2020-07-02)

• mkfs:

  • new option to enable features otherwise enabled at runtime, now implemented for quotas, ‘mkfs.btrfs -R quota’

  • fix space accounting for small image, DUP and --rootdir

  • option -A removed

• check: detect ranges with overlapping csum items

• fi usage: report correct numbers when plain RAID56 profiles are used

• convert: ensure the data chunks size never exceed device size

• libbtrfsutil: update documentation regarding subvolume deletion

• build: support libkcapi as implementation backend for cryptographic primitives

• core: global options for verbosity (-v, -q), subcommands -v or -q are aliases and will continue to work but are considered deprecated, current command output is preserved to keep scripts working

• other:

  • block group code cleanups

  • build warning fixes

  • more files moved to kernel-shared

  • btrfs-debugfs ported to python 3

  • documentation updates

  • new tests

btrfs-progs-5.6 (2020-04-05)

• inspect logical-resolve: support LOGICAL_INO_V2 as new option ‘-o’, helps advanced dedupe tools

• inspect: user larger buffer (64K) for results

• subvol delete: support deletion by id (requires kernel 5.7+)

• libbtrfsutil:

  • support subvolume deletion by id

  • bump version to 1.2

  • library symbols are now versioned

• dump-tree: new option --hide-names, replace any names (file, directory, subvolume, xattr) in the output with stubs

• convert: warn if the filesystem is not mountable on the machine

• fixes:

  • restore: proper mirror iteration on decompression error

  • restore: make symlink messages less noisy

  • check: handle holes at the beginning or end of file

  • fix xxhash output on big endian machines

  • receive: fix lookup of subvolume by uuid in case it was already received before

• other:

  • new and updated tests

  • add missing binaries in exported testsuite

  • docs updates

  • remove obsolete files

  • move files to more appropriate directories

  • fixes reported by valgrind

  • many typos fixed

btrfs-progs-5.6.1 (2020-05-07)

• print warning when multiple block group profiles exist, update ‘fi usage’ summary, add docs to manual page explaining the situation

• build: optional support for libgcrypt or libsodium, providing hash implementations

• other:

  • fixed, updated and new tests

  • cleanups

  • updated docs

btrfs-progs-5.5 (skipped)

btrfs-progs-5.4 (2019-12-03)

• support new hash algorithms (kernel 5.5):

  • mkfs.btrfs and btrfs-convert with --csum, crc32c, xxhash, sha256, blake2

• mkfs: support new raid1c3 and raid1c4 block group profiles (kernel 5.5)

• check:

  • --repair delays start with a warning, can be skipped using --force

  • enhanced detection of inode types from partial data, more options for repair

• receive: fix quiet option

• image: speed up chunk loading

• fi usage:

  • sort devices by id

  • print ratio of used/total per block group type

• rescue zero-log: reset the log pointers directly, avoid reading some other potentially damaged structures

• new make target install-static to install only static binaries/libraries

• other

  • docs updates

  • new tests

  • cleanups and refactoring

btrfs-progs-5.4.1 (2020-01-09)

• build: fix docbook5 build

• check: do extra verification of extent items, inode items and chunks

• qgroup: return ENOTCONN if quotas not running (needs updated kernel)

• other: various test fixups

btrfs-progs-5.3 (2019-10-21)

• mkfs:

  • new option to specify checksum algorithm (only crc32c)

  • fix xattr enumeration

• dump-tree: BFS (breadth-first) traversal now default

• libbtrfsutil: remove stale BTRFS_DEV_REPLACE_ITEM_STATE_x defines

• ci: add support for gitlab

• other:

  • preparatory work for more checksum algorithms

  • docs update

  • switch to docbook5 backend for asciidoc

  • fix build on uClibc due to missing backtrace()

  • lots of printf format fixups

btrfs-progs-5.3.1 (2019-10-25)

• libbtrfs: fix link breakage due to missing symbols

btrfs-progs-5.2 (2019-07-05)

• subvol show: print qgroup information when available

• scrub:

  • status: show ETA, revamp the whole output

  • fix reading/writing of last position on resume/cancel, potentially skipping part of the filesystem on next resume

• dump-tree: add new option --noscan to use only devices given on the command line

• all-in-one binary (busybox style) with mkfs.btrfs, btrfs-image, btrfs-convert, btrfstune

• image: fix hang when there are more than 32 cpus online and compression is requested

• convert: fix some false ENOSPC errors when --rootdir is used

• build: fix gcc9 warnings

• core changes

  • command handling cleanups

  • dead code removal

  • cmds-* files moved to cmds/

  • other shared userspace files moved to common/

  • utils.c split into more files

  • preparatory work for more output formats

  • libbtrfsutil: fix unaligned access

• other

  • new and updated tests

  • fix tests so CI passes again

  • sb-mod can modify more superblock items

btrfs-progs-5.2.1 (2019-07-26)

• scrub status: fix ETA calculation after resume

• check: fix crash when using -Q

• restore: fix symlink owner restoration

• mkfs: fix regression with mixed block groups

• core: fix commit to process all delayed refs

• other:

  • minor cleanups

  • test updates

btrfs-progs-5.2.2 (2019-09-05)

• check:

  • fix false report of wrong byte count for orphan inodes

  • option -E was not handled correctly

  • new check and repair for root item generation

• balance: check for full-balance before background fork

• mkfs: check that total device size does not overflow 16EiB

• dump-tree: print DEV_STATS key type

• other:

  • new and updated tests

  • doc fixups and updates

btrfs-progs-5.1 (2019-05-17)

• (version 5.0 skipped)

• check:

  • repair: flush/FUA support to avoid breaking metadata COW

  • file extents repair no longer relies on data in extent tree

  • lowmem: fix false error reports about gaps between extents

  • add inode mode check and repair for various objects

  • add check for invalid combination of nocow/compressed extents

• device scan: new option to forget scanned devices

• mkfs: use same chunk size as kernel for initial creation

• dev-replace: better report when other exclusive operation is running

• help: for syntax errors on command line, print only the relevant messages, not the whole help text

• receive:

  • new option for quiet mode

  • on -vv print information about written ranges

  • fix endless loop with --dump on an invalid stream

• defrag: able open files in RO mode (needs kernel support to work)

• dump-tree: --block can be specified multiple times

• libbtrfsutil: fix: don’t close fd on error in btrfs_util_subvolume_id_fd

• core:

  • add sync before superblock write

  • better error handling on the transaction commit path

  • try to find best copy when reading tree blocks

  • update backup roots on commit transaction

• other:

  • fuzz tests pass and are enabled in CI

  • cleanups

  • new tests

btrfs-progs-5.1.1 (2019-06-11)

• convert and mkfs will try to use optimized crc32c

• fi show: accept a file-backed image

• fi show: fix possible crash when device is deleted in parallel

• build:

  • support extra flags for python bindings

  • separate LDFLAGS for libbtrfsutil

• other:

  • space reservation fixes or debugging improvements

  • V0 extent code removed

  • more tests and cleanups

btrfs-progs-4.20 (2019-01-19)

• new feature: metadata uuid

  • lightweight change of UUID without rewriting all metadata (incompatible change)

  • done by btrfstune -m/-M

  • needs kernel support, 5.0+

• image:

  • fix block groups when restoring from multi-device image

  • only enlarge result image if it’s a regular file

• check

  • more device extent checks and fixes

  • can repair dir item with mismatched hash

• mkfs: uuid tree created with proper contents

• fix mount point detection due to partial prefix match

• other:

  • new tests

  • libbtrfsutil: fix tests if kernel lacks support for new subvolume ioctls

  • build fixes

  • doc fixes

btrfs-progs-4.20.1 (2019-01-23)

• libbtrfs: fix build of external tools due to missing symbols

• ci: enable library test

btrfs-progs-4.20.2 (2019-02-25)

• ci: use newer distro for builds

• dump-super: minor output fixup

• revert fix for prefix detection of receive path, this is temporary and unbreaks existing user setups

btrfs-progs-4.19 (2018-11-03)

• check: support repair of fs with free-space-tree feature

• core:

  • port delayed ref infrastructure from kernel

  • support write to free space tree

• dump-tree: new options for BFS and DFS enumeration of b-trees

• quota: rescan is now done automatically after ‘assign’

• btrfstune: incomplete fix to uuid change

• subvol: fix 255 char limit checks

• completion: complete block devices and now regular files too

• docs:

  • ship uncompressed manual pages

  • btrfsck uses a manual page link instead of symlink

• other

  • improved error handling

  • docs

  • new tests

btrfs-progs-4.19.1 (2018-12-05)

• build fixes

  • big-endian builds fail due to bswap helper clashes

  • ‘swap’ macro is too generic, renamed to prevent build failures

• libbtrfs

  • minor version update to 1.1.0

  • fix default search to top=0 as documented

  • rename ‘async’ to avoid future python binding problems

  • add support for unprivileged subvolume listing ioctls

  • added tests, API docs

• other

  • lot of typos fixed

  • warning cleanups

  • doc formatting updates

  • CI tests against zstd 1.3.7

btrfs-progs-4.18 (skipped)

btrfs-progs-4.17 (2018-06-14)

• check

  • many lowmem mode improvements

  • properly report qgroup mismatch errors

  • check symlinks with append/immutable flags

• fi usage

  • correctly calculate allocated/unallocated for raid10

  • minor output updates

• mkfs

  • detect ENOSPC on thinly provisioned devices

  • fix spurious EEXIST during directory traversal

• restore: fix relative path for restore target

• dump-tree: print symbolic tree names for backrefs

• send: fix regression preventing send -p with subvolumes mounted on “/”

• corrupt-tree: refactoring and command line updates

• build

  • make it work with e2fsprogs < 1.42 again

  • restore support for autoconf 2.63

  • detect if -std=gnu90 is supported

• other

  • new tests

  • cleanups

btrfs-progs-4.17.1 (2018-08-06)

• check:

  • add ability to fix wrong ram_bytes for compressed inline files

  • beautify progress output

• btrfstune: allow to continue uuid change after unclean interruption

• several fuzz fixes:

  • detect overlapping chunks

  • chunk loading error handling

  • don’t crash with unexpected root refs to extents

• relax option parsing again to allow mixing options and non-options arguments

• fix qgroup rescan status reporting

• build:

  • drop obsolete dir-test

  • new configure option to disable building of tools

  • add compatibility options --disable-static and --disable-shared

• other:

  • cleanups and preparatory work

  • new test images

btrfs-progs-4.16 (2018-04-06)

• libbtrfsutil - new LGPL library to wrap userspace functionality

  • several ‘btrfs’ commands converted to use it:

    • properties

    • filesystem sync

    • subvolume set-default/get-default/delete/show/sync

  • python bindings, tests

• build

  • use configured pkg-config path

  • CI: add python, musl/clang, built dependencies caching

  • convert: build fix for e2fsprogs 1.44+

  • don’t install library links with wrong permissions

• fixes

  • prevent incorrect use of subvol_strip_mountpoint

  • dump-super: don’t verify csum for unknown type

  • convert: fix inline extent creation condition

• check:

  • lowmem: fix false alert for ‘data extent backref lost for snapshot’

  • lowmem: fix false alert for orphan inode

  • lowmem: fix false alert for shared prealloc extents

• mkfs:

  • add UUID and otime to root of FS_TREE - with the uuid, snapshots will be now linked to the toplevel subvol by the parent UUID

  • don’t follow symlinks when calculating size

  • pre-create the UUID tree

  • fix --rootdir with selinux enabled

• dump-tree: add option to print only children nodes of a given block

• image: handle missing device for RAID1

• other

  • new tests

  • test script cleanups (quoting, helpers)

  • tool to edit superblocks

  • updated docs

btrfs-progs-4.16.1 (2018-04-24)

• remove obsolete tools: btrfs-debug-tree, btrfs-zero-log, btrfs-show-super, btrfs-calc-size

• sb-mod: new debugging tool to edit superblock items

• mkfs: detect if thin-provisioned device does not have enough space

• check: don’t try to verify checksums on metadata dump images

• build: fail documentation build if xmlto is not found

• build: fix build of btrfs.static

btrfs-progs-4.15 (2018-02-01)

• mkfs --rootdir reworked, does not minimize the final image but can be still done using a new option --shrink

• fix allocation of system chunk, don’t allocate from the reserved area

• other

  • new and updated tests

  • cleanups, refactoring

  • doc updates

btrfs-progs-4.15.1 (2018-02-16)

• build

  • fix build on musl

  • support asciidoctor for doc generation

• cleanups

  • sync some code with kernel

  • check: move code to own directory, split to more files

• tests

  • more build tests in travis

  • tests now pass with asan and ubsan

  • testsuite can be exported and used separately

btrfs-progs-4.14 (2017-11-16)

• build: libzstd now required by default

• check: more lowmem mode repair enhancements

• subvol set-default: also accept path

• prop set: compression accepts no/none, same as “”

• filesystem usage: enable for filesystem on top of a seed device

• rescue: new command fix-device-size

• other

  • new tests

  • cleanups and refactoring

  • doc updates

btrfs-progs-4.14.1 (2018-01-05)

• dump-tree: print times of root items

• check: fix several lowmem mode bugs

• convert: fix rollback after balance

• other

  • new and updated tests, enabled lowmem mode in CI

  • docs updates

  • fix travis CI build

  • build fixes

  • cleanups

btrfs-progs-4.13 (2017-09-08)

• convert: reiserfs support

• check: new option --force to allow check of a mounted filesystem (no repair)

• mkfs: --rootdir will now copy special files

• dump-tree: minor output changes

• inspect rootid: accept file as argument

• dev usage: don’t calculate slack space for missing devices

• fi du: don’t print error on EMPTY_SUBVOL (inode number 2)

• build:

  • fixed support for sanitization features on gcc (tsan, asan, ubsan)

  • fix PIE build

• other:

  • misc cleanups and stability fixes

  • travis CI enhancements

  • new tests, fuzzed images

  • testsuite cleanups

btrfs-progs-4.13.1 (2017-09-25)

• image: speed up generating the sanitized names, do not generate unprintable chars

• completion: add missing commands, better mount point detection

• restore: add zstd support; libzstd detected automatically, will be requested by default in the future, or can be configured out

• other:

  • misc fixes found by sparse

  • doc enhancements, ioctl manual page started

  • updated and new tests

  • build fixes

btrfs-progs-4.13.2 (2017-10-06)

• subvol list:

  • don’t list toplevel subvolume among deleted (broken since 4.8.3)

  • minor adjustments of uuid print format

• subvol delete:

  • fix swapped behaviour of --commit-each and --commit-after

  • fix potentially lost sync if subvolumes are from different filesystems

• check: add cache for metadata blocks, should improve performance

• other:

  • new tests, testsuite updates

  • doc updates

  • cleanups

btrfs-progs-4.13.3 (2017-10-16)

• check: fix --force, wrong check for a mounted block device

• build: fix --with-convert parsing

• subvol list: don’t list TOPLEVEL

• other: update tests

btrfs-progs-4.12 (2017-07-26)

• subvol show: new options --rootid, --uuid to show subvol by the given spec

• convert: progress report fixes, found by tsan

• image: progress report fixes, found by tsan

• fix infinite looping in find-root, or when looking for free extents

• other:

  • code refactoring

  • docs updates

  • build: ThreadSanitizer support

  • tests: stricter checks for mounted filesystem

btrfs-progs-4.12.1 (2017-08-25)

• build:

  • fix cross-compilation

  • use gnu90 explicitly

• dump-tree: more relaxed checks so -b can print block on a damaged fs

• convert: fix the 1MB range exclusion

• check: more dir_item hash checks

• other

  • added missing getopt spec for some options

  • doc fixes

  • cleanups

  • test updates

btrfs-progs-4.11 (2017-05-18)

• receive: fix handling empty stream with -e (multi-stream)

• send dump: fix printing long file names

• stability fixes for: dump-super, print-tree, check

• option parser updates: global options are parsed before the subcommand name (old xfstests will fail)

• new and updated tests

• documentation updates

btrfs-progs-4.11.1 (2017-06-30)

• image: restoring from multiple devices

• dev stats: make --check option work

• check: fix false alert with extent hole on a NO_HOLE filesystem

• check: lowmem mode, fix false alert in case of mixed inline and compressed extent

• convert: work with large filesystems (many TB)

• convert: fix overwriting of eb header flags

• convert: do not clear NODATASUM flag in inodes when run with --no-datasum

• docs updates

• build: sync Android.mk with Makefile

• tests:

  • new tests

  • fix 008 and 009, shell quotation mistake

btrfs-progs-4.10 (2017-03-08)

• send: dump output fixes: missing newlines

• check: several fixes for the lowmem mode, improved error reporting

• build

  • removed some library deps for binaries that not use them

  • ctags, cscope

  • split Makefile to the autotool generated part and the rest, not needed to autogen.sh after adding a file

• shared code: sync easy parts with kernel sources

• other

  • lots of cleanups

  • source file reorganization: convert, mkfs, utils

  • lots of spelling fixes in docs, other updates

  • more tests

btrfs-progs-4.10.1 (2017-03-17)

• receive: handle subvolume in path clone

• convert: rollback fixed (rewrite was needed to address previous design issues)

• build: fix build of 3rd party tools, missing <linux/sizes.h>

• dump-tree: print log trees

• other

  • new and updated tests

btrfs-progs-4.10.2 (2017-03-31)

• check: lowmem mode fix for false alert about lost backrefs

• convert: minor bugfix

• library: fix build, missing symbols, added tests

btrfs-progs-4.9 (2016-12-23)

• check: many lowmem mode updates

• send: use splice syscall to copy buffer from kernel

• receive: new option to dump the stream in textual form

• convert:

  • move sources to own directory

  • prevent accounting of blocks beyond end of the device

  • make it work with 64k sectorsize

• mkfs: move sources to own directory

• defrag: warns if directory used without -r

• dev stats:

  • new option to check stats for non-zero values

  • add long option for -z

• library: version bump to 0.1.2, added subvol_uuid_search2

• other:

  • cleanups

  • docs updates

btrfs-progs-4.9.1 (2017-01-27)

• check:

  • use correct inode number for lost+found files

  • lowmem mode: fix false alert on dropped leaf

• size reports: negative numbers might appear in size reports during device deletes (previously in EiB units)

• mkfs: print device being trimmed

• defrag: v1 ioctl support dropped

• quota: print message before starting to wait for rescan

• qgroup show: new option to sync before printing the stats

• other:

  • corrupt-block enhancements

  • backtrace and co. cleanups

  • doc fixes

btrfs-progs-4.8 (2016-10-05)

• error handling improvements all over the place

• new fuzzed images, test updates

• doc fixups

• minor cleanups and improvements

• kernel library helpers moved to own directory

• qgroup: fix regression leading to incorrect status after check, introduced in 4.7

btrfs-progs-4.8.1 (2016-10-12)

• 32bit builds fixed

• build without backtrace support fixed

btrfs-progs-4.8.2 (2016-10-26)

• convert: also convert file attributes

• convert: fix wrong tree block alignment for unaligned block group

• check: quota verify fixes, handle reloc tree

• build: add stub for FIEMAP_EXTENT_SHARED, compiles on ancient kernels

• build: add stub for BUILD_ASSERT when ioctl.h is included

• dump-tree: don’t crash on unrecognized tree id for -t

• tests:

  • add more ioctl tests

  • convert: more symlink tests, attribute tests

  • quota verify for reloc tree

• other cleanups

btrfs-progs-4.8.3 (2016-11-11)

• check:

  • support for clearing space cache (v1)

  • size reduction of inode backref structure

• send:

  • fix handling of multiple snapshots (-p and -c options)

  • transfer buffer increased (should reduce number of context switches)

  • reuse existing file for output (-f), eg. when root cannot create files (NFS)

• dump-tree:

  • print missing items for various structures

  • new: dev stats, balance status item

  • sync key names with kernel (the persistent items)

• subvol show: now able to print the toplevel subvolume -- the creation time might be wrong though

• mkfs:

  • store the creation time of toplevel root inode

  • print UUID in the summary

• build: travis CI for devel

• other:

  • lots of cleanups and refactoring

  • switched to on-stack path structure

  • fixes from coverity, asan, ubsan

  • new tests

  • updates in testing infrastructure

  • fixed convert test 005

btrfs-progs-4.8.4 (2016-11-25)

• check: support for clearing space cache v2 (free-space-tree)

• send:

  • more sanity checks (with tests), cleanups

  • fix for fstests/btrfs/038 and btrfs/117 failures

• build:

  • fix compilation of standalone ioctl.h, pull NULL definition

  • fix library link errors introduced in 4.8.3

• tests:

  • add more fuzzed images from bugzilla

  • add bogus send stream checks

  • fixups and enhancements for CI environment builds

  • misc refinements and updates of testing framework

• other:

  • move sources for btrfs-image to own directory

  • deprecated and not build by default: btrfs-calc-size, btrfs-show-super

  • docs updates

btrfs-progs-4.8.5 (2016-11-30)

• receive: fix detection of end of stream (error reported even for valid streams)

• other:

  • added test for the receive bug

  • fix linking of library-test

btrfs-progs-4.7 (2016-07-29)

• convert: fix creating discontig extents

• check: speed up traversing heavily reflinked extents within a file

• check: verify qgroups of higher levels

• check: repair can now fix wrong qgroup numbers

• balance: new option to run in the background

• defrag: default extent target size changed to 32MiB

• du: silently skip non-btrfs dirs/files

• documentation updates: btrfs(5), btrfs(8), balance, subvolume, scrub, filesystem, convert

• bugfixes:

  • unaligned access (reported for sparc64) in raid56 parity calculations

  • use /bin/bash

  • other stability fixes and cleanups

• more tests

btrfs-progs-4.7.1 (2016-08-25)

• check:

  • new optional mode: optimized for low memory usage (memory/io tradeoff)

  • --mode=lowmem, not default, still considered experimental

  • does not work with --repair yet

• convert: regression fix, ext2_subvol/image rw permissions

• mkfs/convert:

  • two-staged creation, partially created filesystem will not be recognized

  • improved error handling (fewer BUG_ONs)

• convert: preparation for more filesystems to convert from

• documentation updates: quota, qgroup

• other

  • message updates

  • more tests

  • more build options, enhanced debugging

btrfs-progs-4.7.2 (2016-09-05)

• check:

  • urgent fix: false report of backref mismatches; do not --repair last unaffected version 4.6.1 (code reverted to that state)

• fuzzing and fixes

  • added more sanity checks for various structures

  • testing images added

• build: udev compatibility: do not install .rules on version < 190

• other:

  • dump-super: do not crash on garbage value in csum_type

  • minor improvements in messages and help strings

• documentation:

  • filesystem features

btrfs-progs-4.7.3 (2016-09-21)

• fixed free space tree compat status

• check: low-mem mode: handle partially dropped snapshots

• dump-super: consolidate options for superblock copy

• tree-stats: check mount status

• subvol delete: handle verbosity option

• defrag: print correct error string

• mkfs: fix reading rotational status

• other:

  • UBSAN build option

  • documentation updates

  • enhanced tests: convert, fuzzed images, more tools to run on fuzzed images

btrfs-progs-4.6 (2016-06-10)

• convert - major rewrite:

  • fix a long-standing bug that led to mixing data blocks into metadata block groups

  • the workaround was to do full balance after conversion, which was recommended practice anyway

  • explicitly set the lowest supported version of e2fstools to 1.41

• provide and install udev rules file that addresses problems with device mapper devices, renames after removal

• send: new option: quiet

• dev usage: report slack space (device size minus filesystem area on the dev)

• image: support DUP

• build: short options to enable debugging builds

• other:

  • code cleanups

  • build fixes

  • more tests and other enhancements

btrfs-progs-4.6.1 (2016-06-24)

• filesystem resize: negative resize argument accepted again

• qgroup rescan: fix skipping when rescan is in progress

• mkfs: initialize stripesize to correct value

• testsuite updates, mostly convert tests

• documentation updates

  • btrfs-device, btrfs-restore manual pages enhanced

  • misc fixups

btrfs-progs-4.5 (2016-03-20)

New/moved commands:

• btrfs-show-super -> btrfs inspect-internal dump-super

• btrfs-debug-tree -> btrfs inspect-internal dump-tree

New commands:

• btrfs filesystem du - calculate disk usage, including shared extents

Enhancements:

• device delete - delete by id (needs kernel support, not merged to 4.6)

• check - new option to specify chunk root

• debug-tree/dump-tree - option -t understands human readable name of the tree (along numerical ids)

• btrfs-debugfs - can dump block group information

Bugfixes:

• all commands should accept the option separator “--”

• several fixes in device scan

• restore works on filesystems with sectorsize > 4k

• debug-tree/dump-tree - print compression type as string

• subvol sync: fix crash, memory corruption

• argument parsing fixes: subvol get-default, qgroup create/destroy/ assign, inspect subvolid-resolve

• check for block device or regular file in several commands

Other:

• documentation updates

• manual pages for the moved tools now point to btrfs-filesystem

• testsuite updates

btrfs-progs-4.5.1 (2016-03-31)

• mkfs: allow DUP on multi-device filesystems

• bugfixes: build fixes, assorted other fixes

btrfs-progs-4.5.2 (2016-05-02)

• new/moved command: btrfs-calc-stats -> btrfs inspect tree-stats

• check: fix false alert for metadata blocks crossing stripe boundary

• check: catch when qgroup numbers mismatch

• check: detect running quota rescan and report mismatches

• balance start: add safety delay before doing a full balance

• filesystem sync: is now silent

• filesystem show: don’t miss filesystems with partially matching uuids

• dev ready: accept only one argument for device

• dev stats: print “devid:N” for a missing device instead of “(null)”

• other:

  • lowest supported version of e2fsprogs is 1.41

  • minor cleanups, test updates

btrfs-progs-4.5.3 (2016-05-11)

• ioctl: fix unaligned access in buffer from TREE_SEARCH; might cause SIGBUS on architectures that do not support unaligned access and do not perform any fixups

• improved validation checks of superblock and chunk-related structures

• subvolume sync: fix handling of -s option

• balance: adjust timing of safety delay countdown with --full-balance

• rescue super-recover: fix reversed condition check

• check: fix bytes_used accounting

• documentation updates: mount options, scrub, send, receive, select-super, check, mkfs

• testing: new fuzzed images, for superblock and chunks

btrfs-progs-4.4 (2016-01-18)

User visible changes:

• mkfs.btrfs --data dup

People asked about duplicating data on a single device for a long time. There are no technical obstacles preventing that, so it got enabled with a warning about potential dangers when the device will not do the duplicated copies. See mkfs.btrfs section DUP PROFILES ON A SINGLE DEVICE.

• support balance filters added/enhanced in linux 4.4

  • usage=min..max -- enhanced to take range

  • stripes=min..max -- new, filter by stripes for raid0/10/5/6

  • limit=min..max -- enhanced to take range

Note: due to backward compatibility, the range maximum for ‘usage’ is not inclusive as for the others, to keep the same behaviour as usage=N .

• manual pages enhanced (btrfs, mkfs, mount, filesystem, balance)

• error messages updates, rewordings -- some fstests may break due to that

• added support for free-space-tree implementation of space cache -- this requires kernel 4.5 and is not recommended for non-developers yet

• btrfs filesystem usage works with mixed blockgroups

Other:

• installation to /usr/local -- this has unintentionally changed during conversion to autotools in 3.19

• check: fix a false alert where extent record has wrong metadata flag

• improved stability on fuzzed/crafted images when reading sys array in superblock

• build: the ‘ar’ tool is properly detected during cross-compilation

• debug-tree: option -t understands ids for tree root and chunk tree

• preparatory work for btrfs-convert rewrite

• sparse, gcc warning fixes

• more memory allocation failure handling

• cleanups

• more tests

Bugfixes:

• chunk recovery: fix floating point exception

• chunk recovery: endianness bugfix during rebuild

• mkfs with 64K pages and nodesize reported superblock checksum mismatch

• check: properly reset nlink of multi-linked file

btrfs-progs-4.4.1 (2016-02-26)

• find-root: don’t skip the first chunk

• free-space-tree compat bits fix

• build: target symlinks

• documentation updates

• test updates

btrfs-progs-4.3 (2015-11-06)

• mkfs

  • mixed mode is not forced for filesystems smaller than 1GiB

  • mixed mode broken with mismatching sectorsize and nodesize, fixed

  • print version info earlier

  • print devices sorted by id

  • do not truncate target image with --rootsize

• filesystem usage:

  • don’t print global block reserve

  • print device id

  • minor output tuning

  • other cleanups

• calc-size:

  • div-by-zero fix on an empty filesystem

  • fix crash

• bugfixes:

  • more superblock sanity checks

  • consistently round size of all devices down to sectorsize

  • misc leak fixes

  • convert: don’t try to rollback with a half-deleted ext2_saved subvolume

• other:

  • check: add progress indicator

  • scrub: enhanced error message

  • show-super: read superblock from a given offset

  • add README

  • docs: update manual page for mkfs.btrfs, btrfstune, balance, convert and inspect-internal

  • build: optional build with more warnings (W=…)

  • build: better support for static checkers

  • build: html output of documentation

  • pretty-print: last_snapshot for root_item

  • pretty-print: stripe dev uuid

  • error reporting wrappers, introduced and example use

  • refactor open_file_or_dir

  • other docs and help updates

• testing:

  • test for nodes crossing stripes

  • test for broken ‘subvolume sync’

  • basic tests for mkfs, raid option combinations

  • basic tests for fuzzed images (check)

  • command instrumentation (eg valgrind)

  • print commands if requested

  • add README for tests

btrfs-progs-4.3.1 (2015-11-16)

• fixes

  • device delete: recognize ‘missing’ again

  • mkfs: long names are not trimmed when doing ssd check

  • support partitioned loop devices

• other

  • replace several mallocs with on-stack variables

  • more memory allocation failure handling

  • add tests for bugs fixed

  • cmd-device: switch to new message printing helpers

  • minor code cleanups

btrfs-progs-4.2 (2015-09-03)

• enhancements:

  • mkfs: do not create extra single chunks on multiple devices

  • resize: try to guess the minimal size, ‘inspect min-dev-size’

  • qgroup assign: add option to schedule rescan

  • chunk-recover: be more verbose about the scanning process

• fixes:

  • check:

    • find stripes crossing stripe boundary -- created by convert

    • print correct range for file hole when there are no extents and learn how to fix it

  • replace: more sanity checks

  • convert: concurrency fixes related to reporting progress

  • find-root: option -a will not skip the current root anymore

  • subvol list: fix occasional crash

  • do not create stripes crossing stripe boundary

• build:

  • fixes for musl libc

  • preliminary support for android (not working yet, more code changes needed)

  • new EXTRA_CFLAGS and EXTRA_LDFLAGS

• other:

  • lots of cleanups

  • tests: lots of updates, new tests, framework improvements

  • documentation updates

  • debugging: print-tree shows stripe length

btrfs-progs-4.2.1 (2015-09-20)

• fix an off-by-one error in cross-stripe boundary check

  • if nodesize was 64k, any metadata block was reported as crossing, this leads to mkfs failure for example due to “no free blocks found”

  • for other nodesizes, if the end of the metadata block was 64k aligned, it was incorrectly reported by fsck

• convert: don’t write uninitialized data to image

• image:

  • don’t loop with option -t0

  • don’t create threads if compression is not requested

• other: minor cleanups

btrfs-progs-4.2.2 (2015-10-05)

• filesystem label: use fallback if the label ioctl is not available

• convert: check nodesize constraints against command line features (-O)

• scrub: report status ‘running’ until all devices are finished

• device scanning might crash in some scenarios

• filesystem usage: print summary for non-root users

btrfs-progs-4.2.3 (2015-10-19)

• subvol sync: make it actually work again: it’s been broken since 4.1.2, due to a reversed condition it returned immediately instead of waiting

• scanning: do not scan already discovered filesystems (minor optimization)

• convert: better error message in case the filesystem is not finalized

• restore: off-by-one symlink path check fix

btrfs-progs-4.1 (2015-06-22)

Bugfixes:

• fsck.btrfs: no bash-isms

• bugzilla 97171: invalid memory access (with tests)

• receive:

  • cloning works with --chroot

  • capabilities not lost

• mkfs: do not try to register bare file images

• option --help accepted by the standalone utilities

Enhancements:

• corrupt block: ability to remove csums

• mkfs:

  • warn if metadata redundancy is lower than for data

  • options to make the output quiet (only errors)

  • mixed case names of raid profiles accepted

  • rework the output:

  • more comprehensive, ‘key: value’ format

• subvol:

  • show:

    • print received uuid

    • update the output

    • new options to specify size units

  • sync: grab all deleted ids and print them as they’re removed, previous implementation only checked if there are any to be deleted - change in command semantics

• scrub: print timestamps in days HMS format

• receive:

  • can specify mount point, do not rely on /proc

  • can work inside subvolumes

• send: new option to send stream without data (NO_FILE_DATA)

• convert: specify incompat features on the new fs

• qgroup:

  • show: distinguish no limits and 0 limit value

  • limit: ability to clear the limit

• help for ‘btrfs’ is shorter, 1st level command overview

• debug tree: print key names according to their C name

New:

• rescue zero-log

• btrfstune:

  • rewrite uuid on a filesystem image

  • new option to turn on NO_HOLES incompat feature

Deprecated:

• standalone btrfs-zero-log

Other:

• testing framework updates

  • uuid rewrite test

  • btrfstune feature setting test

  • zero-log tests

  • more testing image formats

• manual page updates

• ioctl.h synced with current kernel uapi version

• convert: preparatory works for more filesystems (reiserfs pending)

• use static buffers for path handling where possible

• add new helpers for send utils that check memory allocations, switch all users, deprecate old helpers

• Makefile: fix build dependency generation

• map-logical: make it work again

btrfs-progs-4.1.1 (2015-07-10) -- Do not use this version!

Bugfixes:

• defrag: threshold overflow fix

• fsck:

  • check if items fit into the leaf space

  • fix wrong nbytes

• mkfs:

  • create only desired block groups for single device

  • preparatory work for fix on multiple devices

Enhancements:

• new alias for ‘device delete’: ‘device remove’

Other:

• fix compilation on old gcc (4.3)

• documentation updates

• debug-tree: print nbytes

• test: image for corrupted nbytes

• corrupt-block: let it kill nbytes

btrfs-progs-4.1.2 (2015-07-14)

• urgent bugfix: mkfs creates invalid filesystem, must be recreated

btrfs-progs-4.0 (2015-04-29)

• resize:

  • don’t accept file as an argument (it’s confusing)

  • print better error message in case of an error

• restore: optionally restore metadata (time, mode, uid/gid)

• receive: optionally enforce chroot

• new rescue subcommand ‘zero-log’, same as btrfs-zero-log, but now also part of the main utility

• check:

  • free space checks match kernel, fixes incorrect reports

• convert: fix setting of checksum bit if --no-datasum is used

• fsck.btrfs: don’t print messages

• fix quota rescan on PPC64 (mangled ioctl number)

• test updates

• documentation: files renamed to .asciidoc, misc fixups

btrfs-progs-4.0.1 (2015-05-20)

• restore:

  • can restore symlinks, new option --symlinks

  • long option variants added

• convert: dropped dependency on acl.h header and libacl is not required for build

• fix for ‘check’ crash

• device remove error message fix

• preparatory works for fsid change

btrfs-progs-3.19 (2015-03-11)

• build converted to autotools

• btrfs-image

  • restore can now run in parallel threads

  • fixed restore of multiple image from multiple devices onto a single dev

  • introduced metadump v2

• check: make --init-csum-tree and --init-extent-tree work together

• find-new: option to search through all metadata even if a root was already found

• convert: show progress by default, can be turned off

• corrupt-block: option to work on a specific root

• bash completion script for all subcommands

btrfs-progs-3.19.1 (2015-03-25)

• convert:

  • new option to specify metadata block size

  • --no-progress actually works

• restore: properly handle the page boundary corner case

• build fixes:

  • missing macro from public header, BTRFS_BUILD_VERSION

  • wrong handling of --enable-convert

• filesystem usage: reports correct space for degraded mounts

• other:

  • mkfs: help string updates

  • completion: added ‘usage’ subcommands

  • cleanups in qgroup code, preparatory work

btrfs-progs-3.18 (2014-12-30)

• mkfs - skinny-metadata feature is now on by default, first introduced in kernel 3.10

• filesystem usage - give an overview of fs usage in a way that’s more comprehensible than existing ‘filesystem df’

• device usage - more detailed information about per-device allocations

• check

  • option to set a different tree root byte number

  • ability to link lost files to lost+found, caused by a recent kernel bug

  • repair of severely corrupted fs (use with care)

• convert - option to show progress

• subvol create - print the commit mode inline, print the global mode only if --verbose

• other updates: musl-libc support, coverity bugfixes, new test images, documentation

btrfs-progs-3.18.1 (2015-01-09)

• minor fixes

• documentation updates

btrfs-progs-3.18.2 (2015-01-27)

• qgroup show: print human readable sizes, options to say otherwise

• check: new option to explicitly say no to writes

• mkfs: message about trimming is not printed to stderr

• filesystem show: fixed return value

• tests: new infrastructure

• btrfstune: force flag can be used together with seeding option

• backtrace support is back

• getopt cleanups

• doc and help updates

btrfs-progs-3.17 (2014-10-17)

• check: --init-csum-tree actually does something useful, rebuilds the whole csum tree

• /dev scanning for btrfs devices is gone

• /proc/partitions scanning is gone, blkid is used exclusively

• new subcommand subvolume sync

• filesystem df: new options to set unit format

• convert: allow to copy label from the origin, or specify a new one

btrfs-progs-3.17.1 (2014-11-04)

• filesystem df: argument handling

• fix linking with libbtrfs

• replace: better error reporting

• filesystem show: fixed stall if run concurrently with balance

• check: fixed argument parsing for --subvol-extents

• filesystem df: SI prefixes corrected

btrfs-progs-3.17.2 (2014-11-19)

• check improvements

  • add ability to replace missing dir item/dir indexes

  • fix missing inode items

  • create missing root dirid

• corrupt block: enhancements for testing fsck

• zero-log: able to reset a fs with bogus log tree pointer (bug_72151)

btrfs-progs-3.17.3 (2014-12-04)

• convert: fix conversion of sparse ext* filesystems

• show: resolve to the correct path

• fsck: more verbose error for root dir problems

btrfs-progs-3.16 (2014-08-26)

• mkfs: new option to specify UUID, drop experimental notice

• check: new option to verify quotas, reduced memory requirements, new option to print extent sharing

• restore: check length before decompression, more error handling, option to loop during restoring

• balance: new filter ‘limit’

• recover: allow to read all sb copies

• btrfstune: new option to force dangerous changes

• receive: new option to limit number of errors

• show-super: skip unrecognized sb, add option to force

• debug-tree: print tree by id

• documentation updates

btrfs-progs-3.16.1 (2014-09-15)

• print GlobalReserve in filesystem df output

• new option -R in subvol list

• library version defines

• static build is fixed

• build without documentation is possible

btrfs-progs-3.16.2 (2014-10-01)

• a few fixes in fsck and image tools

btrfs-progs-3.15 (skipped)

btrfs-progs-3.14 (2014-04-06)

• fsck: fixes and enhancements to --init-extent-tree mode

• fsck: chunk-recover updates

• scrub: add force option -f

• send: check if subvolumes are read-only

• subvol delete: add options to affect commit behaviour

• btrfs: add property command group

• restore: add dry-run option

• restore: fix restoring of compressed files

• mkfs: support for no-holes feature

• mkfs: option -r deals with hardlinks and relative paths

• mkfs: discard phase is interruptible

• documentation updates

btrfs-progs-3.14.1 (2014-04-18)

• properties: fix handling of option -t

• restore: fix reading of compressed extents

• minor code and doc updates

btrfs-progs-3.14.2 (2014-05-29)

• documentation is now written in asciidoc and there are manpages for each subcommand

• misc bugfixes

btrfs-progs-3.13 (skipped)

btrfs-progs-3.12 (2013-11-25)

• announcement, tarballs

• first release after 0.19 (2009/06) with a lot of changes