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Jeff Mahoney 62c0666378 btrfs-progs: udev: add rules for dm devices
Systemd's btrfs rule runs btrfs dev ready on each device
as it's discovered.  The btrfs command is executed as a builtin
command via an IMPORT{builtin} rule, which means it gets
executed at rule evaluation time, not rule execution time.  That
means that the device mapper links haven't been setup yet and the only
nodes that can be depended upon are /dev/dm-#.  That we see
/dev/mapper/name names in /proc/mounts is only because we replace the
device name we have cached with the one passed in via mount.  If
we have a multi-device file system and the primary device is removed,
the remaining devices will show /dev/dm-#.  In addition, if the
udev rule is executed again by someone generating a change event (e.g.
partprobe), the names are also replaced by the /dev/dm-# names.

This patch adds a new rule that adds a run rule that calls btrfs dev
ready again using the device mapper links once they're created.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2016-06-01 14:56:56 +02:00
Documentation btrfs-progs: docs: clarify why mkfs selects single for SSDs 2016-05-11 16:37:12 +02:00
tests btrfs-progs: add fuzzed testing images, superblock and chunks 2016-05-11 16:37:48 +02:00
.gitignore btrfs-progs: docs: add html build target 2015-11-02 09:35:00 +01:00
64-btrfs-dm.rules btrfs-progs: udev: add rules for dm devices 2016-06-01 14:56:56 +02:00
Android.mk btrfs-progs: Add Android build mk file 2015-09-01 14:02:49 +02:00
CHANGES btrfs-progs: update CHANGES for 4.5.3 2016-05-11 16:39:28 +02:00
COPYING fix COPYING 2007-06-12 15:41:08 -04:00
INSTALL btrfs-progs: INSTALL: enhance build instructions 2015-09-07 11:46:32 +02:00
Makefile.extrawarn btrfs-progs: build: allow to build with various compiler warnings 2015-10-21 14:29:26 +02:00
Makefile.in btrfs-progs: udev: add rules for dm devices 2016-06-01 14:56:56 +02:00
README.md btrfs-progs: add an initial README 2015-11-02 15:10:13 +01:00
androidcompat.h btrfs-progs: add compat header for android 2015-09-01 14:02:49 +02:00
autogen.sh btrfs-progs: autogen: add check for pkg-config 2015-09-07 11:09:17 +02:00
backref.c btrfs-progs: deprecate and stop using btrfs_level_size 2016-05-02 14:40:23 +02:00
backref.h btrfs-progs: unify header file inclusion protections 2015-01-21 17:49:26 +01:00
bcp Btrfs-progs: Correct path munging in bcp 2011-10-25 09:18:58 -04:00
bitops.h btrfs-progs: compat: define DIV_ROUND_UP if not already defined 2015-06-05 23:29:59 +02:00
btrfs-calc-size.c btrfs-progs: copy btrfs-calc-size to inspect-internal tree-stats 2016-05-02 14:39:53 +02:00
btrfs-completion btrfs-progs: update docs and completion for tree-stats 2016-05-02 14:39:57 +02:00
btrfs-convert.c btrfs-progs: convert: fix typo in original image subvolume name 2016-05-02 14:41:58 +02:00
btrfs-corrupt-block.c btrfs-progs: replace leafsize with nodesize 2016-05-02 14:40:18 +02:00
btrfs-crc.c btrfs-progs: use check_argc_* to check arg number for all tools 2014-08-22 15:07:02 +02:00
btrfs-debug-tree.c btrfs-progs: unify naming of argc and argv 2016-03-14 13:42:47 +01:00
btrfs-debugfs btrfs-progs: btrfs-debugfs: fetch block group information 2016-03-16 10:33:11 +01:00
btrfs-find-root.c btrfs-progs: Add new option for specify chunk root bytenr 2016-03-14 13:42:47 +01:00
btrfs-fragments.c btrfs-progs: use ioctl search headers everywhere 2016-05-11 15:53:16 +02:00
btrfs-image.c btrfs-progs: replace leafsize with nodesize 2016-05-02 14:40:18 +02:00
btrfs-list.c btrfs-progs: use ioctl search headers everywhere 2016-05-11 15:53:16 +02:00
btrfs-list.h btrfs-progs: add missing includes to header files 2015-06-10 02:52:21 +02:00
btrfs-map-logical.c btrfs-progs: replace leafsize with nodesize 2016-05-02 14:40:18 +02:00
btrfs-select-super.c btrfs-progs: utils: switch more error messages to common helpers 2016-03-14 14:38:16 +01:00
btrfs-show-super.c btrfs-progs: introduce inspect-internal dump-super 2016-03-14 13:42:47 +01:00
btrfs-zero-log.c btrfs-progs: unify argc min/max checking 2016-03-14 13:42:47 +01:00
btrfs.c btrfs-progs: move prefixcmp to utils 2016-01-14 11:07:10 +01:00
btrfsck.h btrfs-progs: chunk-recovery: Fix a float point error 2015-11-19 18:34:30 +01:00
btrfstune.c btrfs-progs: unify argc min/max checking 2016-03-14 13:42:47 +01:00
chunk-recover.c btrfs-progs: replace leafsize with nodesize 2016-05-02 14:40:18 +02:00
cmds-balance.c btrfs-progs: Adjust timing of safety delay countdown 2016-05-11 16:37:12 +02:00
cmds-check.c btrfs-progs: check: fix found bytes accounting error 2016-05-11 15:53:06 +02:00
cmds-device.c btrfs-progs: handle memory allocation error in cmd_device_stats 2016-05-02 15:03:24 +02:00
cmds-fi-du.c btrfs-progs: fi du: switch to negative error codes 2016-05-11 15:53:15 +02:00
cmds-fi-du.h btrfs-progs: filesystem: add 'du' command 2016-03-14 13:42:47 +01:00
cmds-fi-usage.c btrfs-progs: use ioctl search headers everywhere 2016-05-11 15:53:16 +02:00
cmds-fi-usage.h btrfs-progs: add missing includes to header files 2015-06-10 02:52:21 +02:00
cmds-filesystem.c btrfs-progs: Check if the FSID was seen by comparing full UUID 2016-05-02 14:42:04 +02:00
cmds-inspect-dump-super.c btrfs-progs: dump-super: add more long options 2016-03-15 16:41:06 +01:00
cmds-inspect-dump-super.h btrfs-progs: unify naming of argc and argv 2016-03-14 13:42:47 +01:00
cmds-inspect-dump-tree.c btrfs-progs: deprecate and stop using btrfs_level_size 2016-05-02 14:40:23 +02:00
cmds-inspect-dump-tree.h btrfs-progs: unify naming of argc and argv 2016-03-14 13:42:47 +01:00
cmds-inspect-tree-stats.c btrfs-progs: deprecate and stop using btrfs_level_size 2016-05-02 14:40:23 +02:00
cmds-inspect-tree-stats.h btrfs-progs: copy btrfs-calc-size to inspect-internal tree-stats 2016-05-02 14:39:53 +02:00
cmds-inspect.c btrfs-progs: use ioctl search headers everywhere 2016-05-11 15:53:16 +02:00
cmds-property.c btrfs-progs: prop: remove conditions which never be satisfied 2016-05-11 16:43:42 +02:00
cmds-qgroup.c btrfs-progs: qgroup assign: handle --no-rescan option 2016-03-18 14:19:29 +01:00
cmds-quota.c btrfs-progs: add getopt stubs where needed 2016-03-14 13:42:47 +01:00
cmds-receive.c btrfs-progs: receive: don't leak open find handle 2016-01-14 11:07:10 +01:00
cmds-replace.c btrfs-progs: check for negative return value from ioctl 2016-01-12 15:02:55 +01:00
cmds-rescue.c btrfs-progs: unify argc min/max checking, a few more 2016-03-14 13:42:47 +01:00
cmds-restore.c btrfs-progs: replace leafsize with nodesize 2016-05-02 14:40:18 +02:00
cmds-scrub.c btrfs-progs: add getopt stubs where needed 2016-03-14 13:42:47 +01:00
cmds-send.c btrfs-progs: make error message from add_clone_source more generic 2016-03-30 16:26:21 +02:00
cmds-subvolume.c btrfs-progs: subvolume sync: fix handling of -s option 2016-05-11 16:37:12 +02:00
commands.h btrfs-progs: let test_issubvolume return the exact error 2016-01-14 11:07:10 +01:00
configure.ac btrfs-progs: udev: add rules for dm devices 2016-06-01 14:56:56 +02:00
crc32c.c btrfs-progs: make many private symbols static 2013-09-03 19:41:08 +02:00
crc32c.h btrfs-progs: libify some parts of btrfs-progs 2013-02-27 15:24:25 +01:00
ctree.c btrfs-progs: deprecate and stop using btrfs_level_size 2016-05-02 14:40:23 +02:00
ctree.h btrfs-progs: add getters for ioctl search_header 2016-05-11 15:53:16 +02:00
dir-item.c btrfs-progs: cleanup, mark more functions static 2015-09-14 23:45:53 +02:00
dir-test.c Btrfs-progs: fix magic return value in dir-test.c 2013-10-16 08:20:42 -04:00
disk-io.c btrfs-progs: replace printf with message helpers in check_super 2016-05-11 16:37:47 +02:00
disk-io.h btrfs-progs: Add new option for specify chunk root bytenr 2016-03-14 13:42:47 +01:00
extent-cache.c btrfs-progs: extent-tree: Add add_merge_cache_extent function 2016-01-12 15:01:03 +01:00
extent-cache.h btrfs-progs: extent-tree: Add add_merge_cache_extent function 2016-01-12 15:01:03 +01:00
extent-tree.c btrfs-progs: deprecate and stop using btrfs_level_size 2016-05-02 14:40:23 +02:00
extent_io.c btrfs-progs: replace leafsize with nodesize 2016-05-02 14:40:18 +02:00
extent_io.h btrfs-progs: check the free space tree in btrfsck 2016-01-12 15:02:54 +01:00
file-item.c btrfs-progs: libbtrfs: remove max/min macros from API 2016-03-14 13:42:47 +01:00
file.c btrfs-progs: Add btrfs_get_extent() and btrfs_punch_hole(). 2015-02-02 14:16:38 +01:00
find-root.c btrfs-progs: replace leafsize with nodesize 2016-05-02 14:40:18 +02:00
find-root.h btrfs-progs: find-root: Allow btrfs-find-root to search chunk root even chunk root is corrupted 2016-02-26 17:27:58 +01:00
free-space-cache.c btrfs-progs: libbtrfs: remove max/min macros from API 2016-03-14 13:42:47 +01:00
free-space-cache.h btrfs-progs: check the free space tree in btrfsck 2016-01-12 15:02:54 +01:00
free-space-tree.c btrfs-progs: free-space-tree: minor message adjustments 2016-01-12 15:02:55 +01:00
free-space-tree.h btrfs-progs: check the free space tree in btrfsck 2016-01-12 15:02:54 +01:00
fsck.btrfs btrfs-progs: fsck.btrfs: Fix bashism and bad getopts processing 2015-05-21 16:53:44 +02:00
hash.h btrfs-progs: unify header file inclusion protections 2015-01-21 17:49:26 +01:00
hasher.c Unaligned access fixes 2008-02-15 11:19:58 -05:00
help.c btrfs-progs: move prefixcmp to utils 2016-01-14 11:07:10 +01:00
inode-item.c btrfs-progs: fix overflow check in btrfs_insert_inode_ref 2014-12-30 15:48:55 +01:00
inode-map.c btrfs-progs: libbtrfs: remove max/min macros from API 2016-03-14 13:42:47 +01:00
inode.c btrfs-progs: handle orphan creation error in btrfs_unlink 2015-01-06 18:46:03 +01:00
internal.h btrfs-progs: libbtrfs: remove max/min macros from API 2016-03-14 13:42:47 +01:00
interval_tree_generic.h btrfs-progs: Import interval tree implemenation from Linux v4.0-rc7. 2016-02-26 17:27:58 +01:00
ioctl-test.c btrfs-progs: mark static & remove unused from non-kernel code 2013-09-03 19:40:54 +02:00
ioctl.h btrfs-progs: fix unknown type name 'u64' in gccgo 2016-03-31 16:10:06 +02:00
kerncompat.h btrfs-progs: kerncompat: introduce get_unaligned helpers 2016-05-11 15:53:16 +02:00
library-test.c btrfs-progs: build, add basic build test for library 2014-11-07 17:52:57 +01:00
list.h Btrfs-progs: introduce list_{first, next}_entry/list_splice_tail{_init} 2013-07-03 14:06:55 -04:00
list_sort.c btrfs-progs: add list_sort and use it to sort devices by id 2013-10-16 08:22:26 -04:00
list_sort.h btrfs-progs: add list_sort and use it to sort devices by id 2013-10-16 08:22:26 -04:00
mkfs.c btrfs-progs: mkfs: also parse raid0 profile case-insensitive 2016-03-16 17:41:16 +01:00
print-tree.c btrfs-progs: deprecate and stop using btrfs_level_size 2016-05-02 14:40:23 +02:00
print-tree.h btrfs-progs: unify header file inclusion protections 2015-01-21 17:49:26 +01:00
props.c btrfs-progs: prop: convert error messages to use error() 2016-05-11 16:37:12 +02:00
props.h btrfs-progs: unify header file inclusion protections 2015-01-21 17:49:26 +01:00
qgroup-verify.c btrfs-progs: Read qgroup status for qgroup verify 2016-05-02 14:44:33 +02:00
qgroup-verify.h btrfs-progs: Fix return value bug of qgroups check 2016-05-02 14:42:28 +02:00
qgroup.c btrfs-progs: use ioctl search headers everywhere 2016-05-11 15:53:16 +02:00
qgroup.h btrfs-progs: add missing includes to header files 2015-06-10 02:52:21 +02:00
quick-test.c btrfs-progs: use calloc instead of malloc+memset 2015-10-21 14:29:26 +02:00
radix-tree.c btrfs-progs: Remove a unused function root_gtp_mask(). 2014-12-19 15:04:56 +01:00
radix-tree.h btrfs-progs: libify some parts of btrfs-progs 2013-02-27 15:24:25 +01:00
raid6.c btrfs-progs: give raid6.c its exported prototypes 2013-09-03 19:41:11 +02:00
random-test.c Btrfs-progs: fix magic return value in random-test.c 2013-10-16 08:20:42 -04:00
rbtree-utils.c Btrfs-progs: break out rbtree util functions 2014-10-14 10:39:39 +02:00
rbtree-utils.h btrfs-progs: libbtrfs, make exported headers compatible with C++ 2014-11-03 23:50:50 +01:00
rbtree.c Btrfs-progs: update rbtree libs 2014-10-14 10:39:40 +02:00
rbtree.h btrfs-progs: Import interval tree implemenation from Linux v4.0-rc7. 2016-02-26 17:27:58 +01:00
rbtree_augmented.h btrfs-progs: Import interval tree implemenation from Linux v4.0-rc7. 2016-02-26 17:27:58 +01:00
repair.c Btrfs-progs: introduce common insert/search/delete functions for rb-tree 2013-07-03 14:06:54 -04:00
repair.h btrfs-progs: add missing includes to header files 2015-06-10 02:52:21 +02:00
root-tree.c Btrfs-progs: free path if we don't find root item 2014-03-21 06:23:32 -07:00
send-stream.c btrfs-progs: fix compiler warning 2014-11-07 18:14:38 +01:00
send-stream.h btrfs-progs: add missing includes to header files 2015-06-10 02:52:21 +02:00
send-test.c btrfs-progs: check for negative return value from ioctl 2016-01-12 15:02:55 +01:00
send-utils.c btrfs-progs: use ioctl search headers everywhere 2016-05-11 15:53:16 +02:00
send-utils.h btrfs-progs: drop argument from attribute deprecated 2015-06-30 15:05:07 +02:00
send.h btrfs-progs: unify header file inclusion protections 2015-01-21 17:49:26 +01:00
show-blocks Fix showblocks to display different colors for different metadata roots 2009-03-09 13:00:44 -04:00
string-table.c btrfs-progs: add function attributes for the printf-like 2016-01-12 15:02:55 +01:00
string-table.h btrfs-progs: string table: fix whitespace damage 2015-11-03 00:55:20 +01:00
super-recover.c Btrfs-progs: skip opening all devices with restore 2015-02-09 14:53:15 -05:00
task-utils.c btrfs-progs: Check periodic.timer_fd's value before use 2015-11-16 14:23:45 +01:00
task-utils.h btrfs-progs: unify header file inclusion protections 2015-01-21 17:49:26 +01:00
transaction.h btrfs-progs: add missing includes to header files 2015-06-10 02:52:21 +02:00
ulist.c btrfs-progs: import ulist 2014-08-22 14:39:33 +02:00
ulist.h btrfs-progs: unify header file inclusion protections 2015-01-21 17:49:26 +01:00
utils-lib.c btrfs-progs: drop feature defines from C files, in favour of CFLAGS defines 2015-01-27 14:45:59 +01:00
utils.c btrfs-progs: mkfs: fix an error when using DUP on multidev fs 2016-03-30 16:26:46 +02:00
utils.h btrfs-progs: fix re-declared get_device_info() 2016-05-02 14:41:47 +02:00
uuid-tree.c btrfs-progs: use ioctl search headers everywhere 2016-05-11 15:53:16 +02:00
version.h.in btrfs-progs: re-introduce BTRFS_BUILD_VERSION in version.h 2015-03-16 18:40:06 +01:00
version.sh Btrfs progs v4.5.3 2016-05-11 16:40:33 +02:00
volumes.c btrfs-progs: add validation checks for chunk loading 2016-05-11 16:37:23 +02:00
volumes.h btrfs-progs: extend balance args to take min/max usage filter 2016-01-12 15:01:04 +01:00

README.md

Btrfs-progs

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.

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 queued bug fixes or minor useful improvements.

Development

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

References