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Userspace utilities to manage btrfs filesystems
369 Commits 26 Branches 165 Tags 32 MiB
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Goffredo Baroncelli e8f47cf068 Add the "btrfs filesystem label" command 
Hi all,

this patch adds the command "btrfs filesystem label" to change (or show) the
label of a filesystem.
This patch is a subset of the one written previously by Morey Roof. I
included the user space part only. So it is possible only to change/show a
label of a *single device* and *unounted* filesystem.

The reason of excluding the kernel space part, is to simplify the patch in
order to speed the check and then the merging of the patch itself. In fact I
have to point out that in the past there was almost three attempts to propose
this patch, without success neither complaints.

Chris, let me know how you want to proceed. I know that you are very busy,
and you prefer to work to stabilize btrfs instead adding new feature. But I
think that changing a label is a *essential* feature for a filesystem
managing tool. Think about a mount by LABEL.

To show a label

$ btrfs filesystem label <device>

To set a label

$ btrfs filesystem label <device> <newlabel>

Please guys, give a look to the source.
Comments are welcome.

You can pull the source from the branch "label" of the repository
http://cassiopea.homelinux.net/git/btrfs-progs-unstable.git

Regards
G.Baroncelli

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-10-25 09:18:31 -04:00
man Add the "btrfs filesystem label" command 2011-10-25 09:18:31 -04:00
.hgignore Add .hgignore file to ignore verison.h 2008-07-23 11:36:13 -04:00
.hgtags Added tag v0.16 for changeset 2b26e4f8c71e 2008-08-04 15:46:36 -04:00
bcp bcp updates for single file copies 2008-05-02 16:12:02 -04:00
bit-radix.c Make btrfs-progs compile with -fstrict-aliasing (included in -O2) again. 2007-09-14 10:31:06 -04:00
bit-radix.h add GPLv2 2007-06-12 09:07:11 -04:00
btrfs_cmds.c Add the "btrfs filesystem label" command 2011-10-25 09:18:31 -04:00
btrfs_cmds.h Add the "btrfs filesystem label" command 2011-10-25 09:18:31 -04:00
btrfs-defrag.c new util: 'btrfs' 2010-03-11 13:45:47 -05:00
btrfs-image.c Mixed back reference (FORWARD ROLLING FORMAT CHANGE) 2009-06-08 13:30:36 -04:00
btrfs-list.c Improve error handling in the btrfs command 2011-10-25 09:18:31 -04:00
btrfs-map-logical.c Fix the help text for btrfs-map-logical 2011-04-22 14:52:28 -04:00
btrfs-select-super.c Btrfs-progs: add a btrfs-select-super command to overwrite the super 2011-10-25 09:18:31 -04:00
btrfs-show.c Deprecate btrfsctl, btrfs-show, btrfs-vol 2011-10-25 09:18:31 -04:00
btrfs-vol.c Deprecate btrfsctl, btrfs-show, btrfs-vol 2011-10-25 09:18:31 -04:00
btrfs-zero-log.c Add rescue command to zero the log 2010-10-05 10:14:48 -04:00
btrfs.c Add the "btrfs filesystem label" command 2011-10-25 09:18:31 -04:00
btrfsck.c Add btrfsck option to select the super block copy 2010-10-04 15:41:10 -04:00
btrfsctl.c Deprecate btrfsctl, btrfs-show, btrfs-vol 2011-10-25 09:18:31 -04:00
btrfslabel.c Add the "btrfs filesystem label" command 2011-10-25 09:18:31 -04:00
btrfslabel.h Add the "btrfs filesystem label" command 2011-10-25 09:18:31 -04:00
btrfstune.c update btrfs-progs for seed device support 2008-11-18 10:40:06 -05:00
convert.c Btrfs-progs use safe string manipulation functions 2011-10-25 09:18:31 -04:00
COPYING fix COPYING 2007-06-12 15:41:08 -04:00
crc32c.c CRC32C big endian bugs... 2008-02-15 11:20:02 -05:00
crc32c.h Mixed back reference (FORWARD ROLLING FORMAT CHANGE) 2009-06-08 13:30:36 -04:00
ctree.c Update converter for the new format 2009-06-08 13:31:10 -04:00
ctree.h Update for lzo support 2011-10-25 09:18:31 -04:00
debug-tree.c btrfs-debug-tree: add -d option to print only the device mapping 2010-10-06 09:53:38 -04:00
dir-item.c Btrfs: update converter for the new disk format 2008-12-17 16:10:07 -05:00
dir-test.c Btrfs: add btrfs-debug-tree -b <block number> to print a single block 2010-04-06 09:30:17 -04:00
disk-io.c Btrfs-progs: add a btrfs-select-super command to overwrite the super 2011-10-25 09:18:31 -04:00
disk-io.h Btrfs-progs: add a btrfs-select-super command to overwrite the super 2011-10-25 09:18:31 -04:00
extent_io.c Mixed back reference (FORWARD ROLLING FORMAT CHANGE) 2009-06-08 13:30:36 -04:00
extent_io.h Verify parent generation number on btree reads 2008-05-13 13:48:58 -04:00
extent-cache.c Add support for multiple devices per filesystem 2008-03-24 15:03:18 -04:00
extent-cache.h Add semantic checks to btrfsck for files and directories 2009-01-07 14:57:12 -05:00
extent-tree.c Check for RAID10 in set_avail_alloc_bits 2011-04-22 14:52:40 -04:00
file-item.c Fix isize/nbytes update bugs in btrfs-convert 2009-01-12 12:47:06 -05:00
hash.h Switch btrfs_name_hash() to crc32c 2008-08-20 20:11:23 -04:00
hasher.c Unaligned access fixes 2008-02-15 11:19:58 -05:00
inode-item.c btrfs-progs new dir index support 2008-07-24 12:13:32 -04:00
inode-map.c btrfs-progs: Fix printf format casting errors 2008-04-01 10:52:22 -04:00
INSTALL Update/clean up btrfs help and man page V2 2011-10-25 09:18:31 -04:00
ioctl-test.c Add ioctl-test.c which just prints all the ioctl numbers. 2010-03-15 11:24:20 -04:00
ioctl.h Update for lzo support 2011-10-25 09:18:31 -04:00
kerncompat.h multidevice support for check_mounted 2010-09-23 20:26:49 -04:00
list.h Dynamic chunk allocation 2008-03-24 15:03:58 -04:00
Makefile Add the "btrfs filesystem label" command 2011-10-25 09:18:31 -04:00
mkfs.c Btrfs-progs: add support for mixed data+metadata block groups 2011-10-25 09:18:31 -04:00
print-tree.c only print FIRST_CHUNK_TREE for chunk items in debug-tree 2010-09-23 20:26:49 -04:00
print-tree.h Btrfs: add btrfs-debug-tree -b <block number> to print a single block 2010-04-06 09:30:17 -04:00
quick-test.c Btrfs: add btrfs-debug-tree -b <block number> to print a single block 2010-04-06 09:30:17 -04:00
radix-tree.c Make btrfs-progs compile with -fstrict-aliasing (included in -O2) again. 2007-09-14 10:31:06 -04:00
radix-tree.h i386 fixes from axboe 2007-06-12 11:39:09 -04:00
random-test.c Btrfs: add btrfs-debug-tree -b <block number> to print a single block 2010-04-06 09:30:17 -04:00
rbtree.c Stop using radix trees to record pending allocations 2007-10-15 16:25:04 -04:00
rbtree.h Stop using radix trees to record pending allocations 2007-10-15 16:25:04 -04:00
root-tree.c Btrfs: update converter for the new disk format 2008-12-17 16:10:07 -05:00
show-blocks Fix showblocks to display different colors for different metadata roots 2009-03-09 13:00:44 -04:00
transaction.h Update btrfs-progs to match kernel sources 2008-01-04 10:38:22 -05:00
utils.c Add the "btrfs filesystem label" command 2011-10-25 09:18:31 -04:00
utils.h Add the "btrfs filesystem label" command 2011-10-25 09:18:31 -04:00
version.sh btrfs-progs v0.19 2009-06-11 12:56:15 -04:00
volumes.c Fill missing devices so degraded filesystems can be read 2011-04-22 14:52:40 -04:00
volumes.h superblock duplication 2008-12-05 12:21:31 -05:00