1 Btrfs-progs [![build status](https://travis-ci.org/kdave/btrfs-progs.svg?branch=devel)](https://travis-ci.org/kdave/btrfs-progs) [![coverity status](https://scan.coverity.com/projects/617/badge.svg)](https://scan.coverity.com/projects/btrfs-progs)
4 Userspace utilities to manage btrfs filesystems.
7 Btrfs is a copy on write (COW) filesystem for Linux aimed at implementing
8 advanced features while focusing on fault tolerance, repair and easy
12 This repository hosts following utilities:
14 * **btrfs** — the main administration tool ([manual page](https://btrfs.wiki.kernel.org/index.php/Manpage/btrfs))
15 * **mkfs.btrfs** — utility to create the filesystem ([manual page](https://btrfs.wiki.kernel.org/index.php/Manpage/mkfs.btrfs))
17 See INSTALL for build instructions and [tests/README.md](tests/README.md) for
23 The major version releases are time-based and follow the cycle of the linux
24 kernel releases. The cycle usually takes 2 months. A minor version releases may
25 happen in the meantime if there are bug fixes or minor useful improvements
28 The release tags are signed with a GPG key ID `F2B4 1200 C54E FB30 380C 1756 C565 D5F9 D76D 583B`,
29 release tarballs are hosted at [kernel.org](https://www.kernel.org/pub/linux/kernel/people/kdave/btrfs-progs/).
30 See file [CHANGES](CHANGES) or [changelogs on wiki](https://btrfs.wiki.kernel.org/index.php/Changelog#By_version_.28btrfs-progs.29).
35 There are several ways, each has its own specifics and audience that can give
36 feedback or work on a fix. The following list is sorted in the order of
39 * [github issue tracker](https://github.com/kdave/btrfs-progs/issues)
40 * to the mailing list *linux-btrfs@vger.kernel.org* -- (not required to
41 subscribe), beware that the mail might get overlooked in other traffic
42 * IRC (irc.freenode.net #btrfs) -- good for discussions eg. if a bug is already
43 known, but reports could miss developers' attention
44 * [bugzilla.kernel.org](https://bugzilla.kernel.org) -- (requires
45 registration), set the product to Filesystems and component Btrfs, please put
46 'btrfs-progs' into the subject so it's clear that it's not a kernel bug
53 The patch submissions, development or general discussions take place at
54 *linux-btrfs@vger.kernel.org* mailinglist, subsciption is not required to post.
56 The GitHub pull requests will not be accepted directly, the preferred way is to
57 send patches to the mailinglist instead. You can link to a branch in any git
58 repository if the mails do not make it to the mailinglist or just for
59 convenience (makes it easier to test).
61 The development model of btrfs-progs shares a lot with the kernel model. The
62 github way is different in some ways. We, the upstream community, expect that
63 the patches meet some criteria (often lacking in github contributions):
65 * **one logical change per patch**: eg. not mixing bugfixes, cleanups, features
66 etc., sometimes it's not clear and will be usually pointed out during reviews
67 * proper **subject line**: eg. prefix with _btrfs-progs: subpart, ..._ ,
68 descriptive yet not too long, see `git log --oneline` for some inspiration
69 * proper **changelog**: the changelogs are often missing or lacking explanation _why_
70 the change was made, or _how_ is something broken, _what_ are user-visible
71 effects of the bug or the fix, _how_ does an improvement help or the intended
73 * the **Signed-off-by** line: this documents who authored the change, you can read
74 more about the _The Developer's Certificate of Origin_ [here (chapter 11)](https://www.kernel.org/doc/Documentation/SubmittingPatches)
79 Documentation fixes or updates do not need much explanation so sticking to the
80 code rules in the previous section is not necessary. Github pull requests are
81 OK, patches could be sent to me directly and not required to be also in the
82 mailinglist. Pointing out typos via IRC also works, although might get
83 accidentally lost in the noise.
88 * [wiki/Developer's FAQ](https://btrfs.wiki.kernel.org/index.php/Developer's_FAQ)
89 * [wiki/Getting started](https://btrfs.wiki.kernel.org/index.php/Getting_started)
90 * [wiki/TODO](https://btrfs.wiki.kernel.org/index.php/Project_ideas#Userspace_tools_projects)
91 * [Btrfs-progs changelogs](https://btrfs.wiki.kernel.org/index.php/Changelog#By_version_.28btrfs-progs.29)
92 * [wiki/FAQ](https://btrfs.wiki.kernel.org/index.php/FAQ)
93 * [Wiki with more information](https://btrfs.wiki.kernel.org)