Userspace utilities to manage btrfs filesystems
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Tsutomu Itoh bd1ac1fb1d btrfs-progs: qgroup: add sync option to 'qgroup show'
The 'qgroup show' command does not synchronize filesystem.
Therefore, 'qgroup show' may not display the correct value unless
synchronized with 'filesystem sync' command etc.

So add the '--sync' option so that we can choose whether or not
to synchronize when executing the command.

Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2017-01-25 09:48:33 +01:00
Documentation btrfs-progs: qgroup: add sync option to 'qgroup show' 2017-01-25 09:48:33 +01:00
convert btrfs-progs: file-item: Fix wrong file extents inserted 2016-12-21 16:29:06 +01:00
image btrfs-progs: sanitize - Use correct source for memcpy 2017-01-25 09:48:06 +01:00
kernel-lib btrfs-progs: move bitops.h to kernel-lib 2016-11-24 13:06:36 +01:00
m4
mkfs btrfs-progs: Fix spelling/typos in user-facing strings 2017-01-25 09:47:40 +01:00
tests btrfs-progs: tests: 005-qgroup-show 2017-01-25 09:48:00 +01:00
.gitignore btrfs-progs: Ignore clang complete file 2016-11-09 13:13:41 +01:00
.travis.yml btrfs-progs: run mkfs tests in CI 2016-12-14 15:06:35 +01:00
64-btrfs-dm.rules
Android.mk
CHANGES btrfs-progs: update CHANGES for v4.9 2016-12-23 19:50:05 +01:00
COPYING
INSTALL btrfs-progs: Update README and other docs 2016-11-23 11:07:05 +01:00
Makefile.extrawarn
Makefile.in btrfs-progs: move mkfs.btrfs sources to own directory 2016-12-14 15:06:35 +01:00
README.md btrfs-progs: docs: make documentation updates workflow more clear 2016-12-14 15:06:35 +01:00
androidcompat.h
autogen.sh
backref.c btrfs-progs: make incompat bit wrappers more compact 2016-12-14 15:06:34 +01:00
backref.h
bcp
btrfs-calc-size.c btrfs-progs: deprecate standalone btrfs-calc-size 2016-11-24 13:06:36 +01:00
btrfs-completion
btrfs-corrupt-block.c btrfs-progs: corrupt-block: Include more inode fields 2017-01-25 09:47:51 +01:00
btrfs-crc.c
btrfs-debug-tree.c
btrfs-debugfs btrfs-progs: btrfs-debugfs: cleanup unused variables reported by pylint 2016-10-24 14:57:46 +02:00
btrfs-find-root.c
btrfs-fragments.c btrfs-progs: use symbolic tree name when searching 2016-11-09 13:47:29 +01:00
btrfs-list.c btrfs-progs: subvol show: print more details about toplevel subvolume 2016-11-09 13:47:29 +01:00
btrfs-list.h btrfs-progs: subvol show: print more details about toplevel subvolume 2016-11-09 13:47:29 +01:00
btrfs-map-logical.c btrfs-progs: use standard allocation functions in non-kenrel code 2016-10-03 11:33:15 +02:00
btrfs-select-super.c btrfs-progs: print help test to stdout 2016-09-05 12:20:24 +02:00
btrfs-show-super.c btrfs-progs: deprecate standalone btrfs-show-super 2016-11-24 13:06:36 +01:00
btrfs-zero-log.c btrfs-progs: print help test to stdout 2016-09-05 12:20:24 +02:00
btrfs.c
btrfsck.h
btrfstune.c btrfs-progs: btrfstune: use on-stack path buffer in change_devices_uuid 2016-11-09 13:47:34 +01:00
chunk-recover.c btrfs-progs: add OPEN_CTREE_INVALIDATE_FST flag 2016-11-23 11:07:05 +01:00
cmds-balance.c btrfs-progs: balance: add another (shorter) option for background 2016-07-26 19:30:39 +02:00
cmds-check.c btrfs-progs: check: fix false alert on dropped leaf in lowmem mode 2017-01-25 09:48:03 +01:00
cmds-device.c btrfs-progs: dev stats: update option name for checking non-zero status 2016-12-14 15:06:36 +01:00
cmds-fi-du.c btrfs-progs: fi du: don't redefine standard macro/function 2016-11-09 13:47:31 +01:00
cmds-fi-du.h
cmds-fi-usage.c btrfs-progs: enable negative numbers for unallocated device space 2017-01-25 09:47:35 +01:00
cmds-fi-usage.h
cmds-filesystem.c btrfs-progs: defrag: remove v1 ioctl support 2017-01-25 09:47:46 +01:00
cmds-inspect-dump-super.c btrfs-progs: format FREE_SPACE_TREE{,_VALID} nicely in dump-super 2016-11-23 11:07:05 +01:00
cmds-inspect-dump-super.h
cmds-inspect-dump-tree.c btrfs-progs: remove extra newline from messages 2016-12-14 15:06:34 +01:00
cmds-inspect-dump-tree.h
cmds-inspect-tree-stats.c btrfs-progs: tree-stats: use on-stack path buffer in calc_root_size 2016-11-09 13:47:33 +01:00
cmds-inspect-tree-stats.h
cmds-inspect.c btrfs-progs: rename lookup_ino_rootid 2016-11-09 13:47:28 +01:00
cmds-property.c btrfs-progs: prop: simplify help printing code 2016-10-03 11:33:14 +02:00
cmds-qgroup.c btrfs-progs: qgroup: add sync option to 'qgroup show' 2017-01-25 09:48:33 +01:00
cmds-quota.c btrfs-progs: quota: fix printing during wait mode 2017-01-25 09:48:09 +01:00
cmds-receive.c btrfs-progs: Fix NULL pointer when receive clone operation 2016-12-21 16:29:06 +01:00
cmds-replace.c btrfs-progs: remove extra newline from messages 2016-12-14 15:06:34 +01:00
cmds-rescue.c
cmds-restore.c btrfs-progs: remove extra newline from messages 2016-12-14 15:06:34 +01:00
cmds-scrub.c btrfs-progs: scrub: improved error handling in scrub_read_file 2016-09-21 14:12:10 +02:00
cmds-send.c btrfs-progs: Fix NULL pointer when receive clone operation 2016-12-21 16:29:06 +01:00
cmds-subvolume.c btrfs-progs: remove extra newline from messages 2016-12-14 15:06:34 +01:00
commands.h
configure.ac btrfs-progs: library: bump to 0.1.2 2016-12-14 15:06:36 +01:00
ctree.c btrfs-progs: handle errors from btrfs_alloc_path 2016-09-21 14:12:38 +02:00
ctree.h btrfs-progs: check: get the highest inode for lost+found 2017-01-25 09:47:19 +01:00
dir-item.c btrfs-progs: cleanup, kill trivial btrfs_key_type helper 2016-10-03 11:33:15 +02:00
dir-test.c btrfs-progs: cleanup, kill trivial btrfs_set_key_type helper 2016-10-03 11:33:15 +02:00
disk-io.c btrfs-progs: check: get the highest inode for lost+found 2017-01-25 09:47:19 +01:00
disk-io.h btrfs-progs: raid56: Introduce new function to calculate raid5 parity or data stripe 2016-12-14 15:06:33 +01:00
extent-cache.c
extent-cache.h
extent-tree.c btrfs-progs: make incompat bit wrappers more compact 2016-12-14 15:06:34 +01:00
extent_io.c btrfs-progs: handler memory allocation error in write_data_to_disk 2016-07-28 14:08:30 +02:00
extent_io.h btrfs-progs: Remove unnecessary parameter to clear_extent_uptodate 2016-10-03 15:07:23 +02:00
file-item.c btrfs-progs: file-item: Fix wrong file extents inserted 2016-12-21 16:29:06 +01:00
file.c
find-root.c
find-root.h
free-space-cache.c btrfs-progs: check: add support to clear v1 free space cache 2016-11-09 13:12:47 +01:00
free-space-cache.h btrfs-progs: check: add support to clear v1 free space cache 2016-11-09 13:12:47 +01:00
free-space-tree.c btrfs-progs: add btrfs_clear_free_space_tree() from the kernel 2016-11-23 11:07:05 +01:00
free-space-tree.h btrfs-progs: add btrfs_clear_free_space_tree() from the kernel 2016-11-23 11:07:05 +01:00
fsck.btrfs
hash.h btrfs-progs: move btrfs_extref_hash() to hash.h 2016-10-25 14:28:36 +02:00
hasher.c
help.c btrfs-progs: help: fix printing of aliased commands 2016-12-14 15:06:36 +01:00
inode-item.c btrfs-progs: make incompat bit wrappers more compact 2016-12-14 15:06:34 +01:00
inode-map.c btrfs-progs: handle errors from btrfs_alloc_path 2016-09-21 14:12:38 +02:00
inode.c btrfs-progs: convert: Fix a regression that ext2_save/image is not readonly 2016-08-19 13:52:43 +02:00
internal.h
ioctl-test.c btrfs-progs: tests: make the ioctl-test actually useful 2016-10-24 14:57:19 +02:00
ioctl.h btrfs-progs: ioctl: fix compilation if ioctl.h is included standalone 2016-11-23 10:49:33 +01:00
kerncompat.h btrfs-progs: kerncompat: simplify warning_trace 2017-01-25 09:48:25 +01:00
library-test.c btrfs-progs: test: extend library-test coverage 2016-11-24 13:06:36 +01:00
print-tree.c btrfs-progs: print-tree: fix format string on 32bit 2016-11-24 13:06:36 +01:00
print-tree.h btrfs-progs: Enhance and export print_key_type function 2016-09-05 10:04:07 +02:00
props.c
props.h
qgroup-verify.c btrfs-progs: Initialize ret to suppress compiler warning 2016-12-14 15:06:35 +01:00
qgroup-verify.h btrfs-progs: check: write corrected qgroup info to disk 2016-07-13 18:44:26 +02:00
qgroup.c btrfs-progs: qgroup show: refine error messages 2017-01-25 09:47:58 +01:00
qgroup.h btrfs-progs: remove unused function btrfs_get_path_rootid 2016-11-09 13:47:28 +01:00
quick-test.c btrfs-progs: cleanup, kill trivial btrfs_set_key_type helper 2016-10-03 11:33:15 +02:00
raid56.c btrfs-progs: raid56: Introduce new function to calculate raid5 parity or data stripe 2016-12-14 15:06:33 +01:00
random-test.c btrfs-progs: cleanup, kill trivial btrfs_set_key_type helper 2016-10-03 11:33:15 +02:00
rbtree-utils.c
rbtree-utils.h
repair.c
repair.h
root-tree.c btrfs-progs: add btrfs_clear_free_space_tree() from the kernel 2016-11-23 11:07:05 +01:00
send-dump.c btrfs-progs: send dump: use reentrant variant of localtime 2016-12-14 15:06:34 +01:00
send-dump.h btrfs-progs: introduce new send-dump object 2016-12-14 15:06:34 +01:00
send-stream.c btrfs-progs: receive: properly detect end of stream conditions 2016-11-30 12:42:22 +01:00
send-stream.h
send-utils.c btrfs-progs: handle failed strdup in subvol_uuid_search2 2016-12-14 15:06:36 +01:00
send-utils.h btrfs-progs: fixup API after change in subvol_uuid_search 2016-12-14 15:06:36 +01:00
send.h
show-blocks
string-table.c btrfs-progs: constify string arguments where appropriate 2016-10-03 15:07:23 +02:00
string-table.h btrfs-progs: constify string arguments where appropriate 2016-10-03 15:07:23 +02:00
super-recover.c btrfs-progs: super-recover: Reuse btrfs_read_dev_super function 2016-10-03 15:07:22 +02:00
task-utils.c
task-utils.h
transaction.h
ulist.c
ulist.h
utils-lib.c btrfs-progs: move lookup_path_rootid to library utils 2016-11-24 13:06:36 +01:00
utils.c btrfs-progs: mkfs: print device name while trimming 2017-01-25 09:47:38 +01:00
utils.h btrfs-progs: make negative number pretty printing optional 2017-01-25 09:47:32 +01:00
uuid-tree.c
version.h.in
version.sh Btrfs progs v4.9 2016-12-23 19:50:39 +01:00
volumes.c btrfs-progs: find_free_dev_extent() closer to kernel code 2016-12-14 15:06:35 +01:00
volumes.h btrfs-progs: Fix wrong tree block alignment for unalianged block group 2016-10-25 14:31:06 +02:00

README.md

Btrfs-progs build status coverity status

Userspace utilities to manage btrfs filesystems. License: GPLv2.

Btrfs is a copy on write (COW) filesystem for Linux aimed at implementing advanced features while focusing on fault tolerance, repair and easy administration.

This repository hosts following utilities:

  • btrfs — the main administration tool (manual page)
  • mkfs.btrfs — utility to create the filesystem (manual page)

See INSTALL for build instructions and tests/README.md for testing information.

Release cycle

The major version releases are time-based and follow the cycle of the linux kernel releases. The cycle usually takes 2 months. A minor version releases may happen in the meantime if there are bug fixes or minor useful improvements queued.

The release tags are signed with a GPG key ID F2B4 1200 C54E FB30 380C 1756 C565 D5F9 D76D 583B, release tarballs are hosted at kernel.org. See file CHANGES or changelogs on wiki.

Reporting bugs

There are several ways, each has its own specifics and audience that can give feedback or work on a fix.

  • bugzilla.kernel.org -- (requires registration), set the product to Filesystems and component Btrfs, please put 'btrfs-progs' into the subject so it's clear that it's not a kernel bug report
  • to the mailing list linux-btrfs@vger.kernel.org -- (not required to subscribe), beware that the mail might get overlooked in other traffic
  • github issue tracker
  • IRC (irc.freenode.net #btrfs) -- good for discussions eg. if a bug is already known, but reports could miss developers' attention

Development

The patch submissions, development or general discussions take place at linux-btrfs@vger.kernel.org mailinglist, subsciption is not required to post.

The GitHub pull requests will not be accepted directly, the preferred way is to send patches to the mailinglist instead. You can link to a branch in any git repository if the mails do not make it to the mailinglist or just for convenience (makes it easier to test).

The development model of btrfs-progs shares a lot with the kernel model. The github way is different in some ways. We, the upstream community, expect that the patches meet some criteria (often lacking in github contributions):

  • one logical change per patch: eg. not mixing bugfixes, cleanups, features etc., sometimes it's not clear and will be usually pointed out during reviews
  • proper subject line: eg. prefix with btrfs-progs: subpart, ... , descriptive yet not too long, see git log --oneline for some inspiration
  • proper changelog: the changelogs are often missing or lacking explanation why the change was made, or how is something broken, what are user-visible effects of the bug or the fix, how does an improvement help or the intended usecase
  • the Signed-off-by line: this documents who authored the change, you can read more about the The Developer's Certificate of Origin here (chapter 11)

Documentation updates

Documentation fixes or updates do not need much explanation so sticking to the code rules in the previous section is not necessary. Github pull requests are OK, patches could be sent to me directly and not required to be also in the mailinglist. Pointing out typos via IRC also works, although might get accidentally lost in the noise.

References