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* btrfs-progs: docs: update dev stats help and manual pageDavid Sterba2016-12-14
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: dev stats: add long option for -zDavid Sterba2016-12-14
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: dev stats: add dev stats returncode optionAustin S. Hemmelgarn2016-12-14
| | | | | | | | | | | | | | | | | | | Currently, `btrfs device stats` returns non-zero only when there was an error getting the counter values. This is fine for when it gets run by a user directly, but is a serious pain when trying to use it in a script or for monitoring since you need to parse the (not at all machine friendly) output to check the counter values. This patch adds an option ('-s') which causes `btrfs device stats` to set bit 6 in the return code if any of the counters are non-zero. This greatly simplifies checking from a script or monitoring software if any errors have been recorded. In the event that this switch is passed and an error occurs reading the stats, the return code will have bit 0 set (so if there are errors reading counters, and the counters which were read were non-zero, the return value will be 65). Signed-off-by: Austin S. Hemmelgarn <ahferroin7@gmail.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: fix typo in mkfs manual pageNoah Massey2016-12-14
| | | | | Signed-off-by: Noah Massey <noah.massey@gmail.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: man mkfs: warn about RAID5/6 being experimentalAdam Borowski2016-12-14
| | | | | Signed-off-by: Adam Borowski <kilobyte@angband.pl> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: clarify trim after mkfs -KDavid Sterba2016-12-14
| | | | | | A user question on IRC about mkfs -K and mount with discard. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: update receive help and manual pageDavid Sterba2016-12-14
| | | | | | | | | | | Reword several option descriptions, add missing short option -E, formatting adjustments. Visual bug fix: the first line is printed in short help, the second line is long description, thus alternative calling syntax must be printed on one line. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: receive: introduce option to dump send streamQu Wenruo2016-12-14
| | | | | | | | | | Introduce new option, '--dump' for receive subcommand. With this command, user can dump the metadata of a send stream. Which is quite useful for education purpose or bug reporting. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: fix typo in btrfs-man5David Sterba2016-11-30
| | | | | | Reported via IRC. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: Update README and other docsDavid Sterba2016-11-23
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: document space_cache=v2 more thoroughlyOmar Sandoval2016-11-23
| | | | | Signed-off-by: Omar Sandoval <osandov@fb.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: implement btrfs check --clear-space-cache v2Omar Sandoval2016-11-23
| | | | | | | Reviewed-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: Omar Sandoval <osandov@fb.com> [ adjusted error messages ] Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: fix typo in btrfs-scrub manual pageDavid Sterba2016-11-23
| | | | | | Reported on IRC. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: update mkfs help string and manual pageDavid Sterba2016-11-09
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: check: add support to clear v1 free space cacheQu Wenruo2016-11-09
| | | | | | | | | | | | | | | | Kernel clear_cache mount option will only rebuild free space cache if the used space of that chunk has changed. So it won't ensure any corrupted free space cache get cleared. So add a new option "--clear-space-cache v1|v2" to btrfsck, to completely wipe out free space cache. So kernel won't complain again. Reported-by: Ivan P <chrnosphered@gmail.com> Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> [ adjusted error messages, doc wording changes ] Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: fix user-facing typos in docs and help stringsNicholas D Steeves2016-10-03
| | | | | Signed-off-by: Nicholas D Steeves <nsteeves@gmail.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: document exit codes from scrubAdam Borowski2016-10-03
| | | | | Signed-off-by: Adam Borowski <kilobyte@angband.pl> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: convert: check source file system stateLakshmipathi.G2016-10-03
| | | | | | Signed-off-by: Lakshmipathi.G <Lakshmipathi.G@giis.co.in> [ add doc note ] Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: fix typos in btrfs-subvolumeadduxa2016-09-21
| | | | | [ Documentation fix, github pull request 16 ] Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: update flushoncommit default valueDavid Sterba2016-09-21
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: Add warning for build RAID btrfs on partions from the ↵Qu Wenruo2016-09-21
| | | | | | | | | same device Quite a common sense for any RAID-like multi-device setup, just in case. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: mkfs: Warn user for minimal RAID5/6 devices setupQu Wenruo2016-09-21
| | | | | | | | | | | For RAID5, 2 devices setup is just RAID1 with more overhead. For RAID6, 3 devices setup is RAID1 with 3 copies, not what most user want. So warn user at mkfs time for such case, and add explain in man pages. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: dump-super: changes in options to specify superblocksDavid Sterba2016-09-21
| | | | | | | | | | | | Some tools (check, select-super, dump-super) can use the alternate superblocks, but the options are not consistent. To make it less confusing, change the meaning of option -s in 'dump-super' to specify the superblock copy, instead of taking the offset. Though this is a change in UI, the old usage is detected and the result would be the same, no breakage in existing scripts. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: describe filesystem featuresDavid Sterba2016-09-05
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: refer to btrfs(5) from btrfs(8)David Sterba2016-08-18
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: update btrfs-quota manual page, more sectionsDavid Sterba2016-08-18
| | | | | | Add more overall sections. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: update btrfs-quota manual pageDavid Sterba2016-08-18
| | | | | | | | | | Copy the intoductory and usecases from the text written by Arne Jansen, https://git.kernel.org/cgit/linux/kernel/git/arne/qgroups-doc.git/ The graphics missing for now. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: check: adjust command line options for the low-memory modeDavid Sterba2016-08-17
| | | | | | | | Change the single-purpose option --low-memory to a generic option that takes the mode. Currently supported are the original mode and the low-memory in the same way. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: check: introduce low memory modeLu Fengqi2016-08-17
| | | | | | | | | | | | | | | | | | | | | | | Introduce a new fsck mode: low memory mode. Old btrfsck is working efficiently but uses some memory for each extent item. This method will ensure extents are only iterated once at extent/chunk tree check process. But since it uses some memory for each extent item, for a large fs with several TB metadata, this can easily eat up memory and cause OOM. To handle such limitation and improve scalability, the new low-memory mode will not use any heap memory to record which extent is checked. Instead it will use extent backref to avoid most of uneeded checks on shared fs/subvolume tree blocks. And with the use forward and backward reference cross check, we can also ensure every tree block is at least checked once. Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com> Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Reviewed-by: Josef Bacik <jbacik@fb.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: fi defrag: change default extent target size to 32 MiBDavid Sterba2016-07-28
| | | | | | | The kernel default is too low, 32 MiB is recommended and should give better results. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: Doc: Fix format error in btrfs-sendQu Wenruo2016-07-28
| | | | | Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: update btrfs-balance manual pageDavid Sterba2016-07-28
| | | | | | Update the new options. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: add option to run balance as daemonAustin S. Hemmelgarn2016-07-26
| | | | | | | | | | | | | | | | | | | | Currently, balance operations are run synchronously in the foreground. This is nice for interactive management, but is kind of crappy when you start looking at automation and similar things. This patch adds an option to `btrfs balance start` to tell it to daemonize prior to running the balance operation, thus allowing us to preform balances asynchronously. The two biggest use cases I have for this are starting a balance on a remote server without establishing a full shell session, and being able to background the balance in a recovery shell (which usually has no job control) so I can still get progress information. Because it simply daemonizes prior to calling the balance ioctl, this doesn't actually need any kernel support. Signed-off-by: Austin S. Hemmelgarn <ahferroin7@gmail.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: update btrfs manual pageDavid Sterba2016-07-15
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: update btrfs-convert manual pageDavid Sterba2016-07-15
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: update btrfs-filesystem manual pageDavid Sterba2016-07-14
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: update btrfs-scrub manual pageDavid Sterba2016-07-14
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: update btrfs-subvolume manual pageDavid Sterba2016-07-13
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: update btrfs-balance manual pageDavid Sterba2016-07-13
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: man5, document control deviceDavid Sterba2016-07-13
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: update 'btrfs-device' manual pageDavid Sterba2016-06-21
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: update btrfs-restore manual pageDavid Sterba2016-06-17
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: doc: correct the destination of btrfs-receiveSatoru Takeuchi2016-06-14
| | | | | | | | We can set not only btrfs mount point but also any path belong to btrfs mount point as btrfs-receive's destination. Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: doc: add missing newline in btrfs-convertNoah Massey2016-06-14
| | | | | Signed-off-by: Noah Massey <noah.massey@gmail.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: doc: fix typo in btrfs-subvolumeMerlin Hartley2016-06-01
| | | | | Signed-off-by: Merlin Hartley <merlinhartley@hotmail.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: compression is disabled with nodatasum/nodatacowDavid Sterba2016-06-01
| | | | | | Explicitly mention the constraints in all involved options. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: send: add quiet optionM G Berberich2016-06-01
| | | | | | | | | | | | Add new options -q,--quiet to prevent printing messages on stderr, added --verbose as alternative for -v. Moved 'Mode NO_FILE_DATA enabled' message to stderr. The default verboisty level is 1 to keep some backward compatibility. Signed-off-by: M G Berberich <btrfs@oss.m-berberich.de> [ minor adjustments in the options, help text and changelog, added manual page text ] Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: clarify why mkfs selects single for SSDsDavid Sterba2016-05-11
| | | | | | The section raised some user questions on IRC. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: update btrfs-checkDavid Sterba2016-05-11
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: docs: update btrfs-select-superDavid Sterba2016-05-11
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
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