Userspace utilities to manage btrfs filesystems
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Josef Bacik bd338824de Btrfs-image: add the ability to santize file names when making an image
We've had a few users who wouldn't (or couldn't) provide us btrfs-images because
we maintain the file names when making an image.  So introduce a sanitize
option.  There are two uses, one that is fast and the other that is dog slow.
The fast way just generates garbage that's equal in length to the original name.
The slow way will try and find a crc32c collision for the file name that is also
the same length.  Finding a crc32c collision for the file name "btrfs-progs" on
my box without CPU crc32c support takes a little more than 3 minutes, and a
little less than 2 minutes for my box that has CPU crc32c support, so it's a
lengthy and CPU intensive process.

The idea is that we use -s for most cases, and then only use -ss when we need
the file system tree to be somewhat sane.  I could probably do a better job
about finding collisions, but I'll have to revist that later.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-06-19 13:35:15 -04:00
man Btrfs-image: add the ability to santize file names when making an image 2013-06-19 13:35:15 -04:00
.gitignore Btrfs-progs: tool to visualize fragmentation 2013-03-19 18:24:51 +01:00
.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 Btrfs-progs: Correct path munging in bcp 2011-10-25 09:18:58 -04:00
bitops.h Btrfs-progs: add a free space cache checker to fsck V2 2013-04-23 18:56:21 +02:00
btrfs-calc-size.c btrfs-progs: standardize tool source filenames 2013-04-24 14:05:33 +02:00
btrfs-convert.c btrfs-progs: standardize tool source filenames 2013-04-24 14:05:33 +02:00
btrfs-corrupt-block.c Add basic RAID[56] support 2013-02-01 14:22:07 -05:00
btrfs-crc.c Btrfs-progs: btrfs-crc: support specifying checksum in hex 2013-04-23 19:10:12 +02:00
btrfs-debug-tree.c btrfs-progs: standardize tool source filenames 2013-04-24 14:05:33 +02:00
btrfs-defrag.c new util: 'btrfs' 2010-03-11 13:45:47 -05:00
btrfs-find-root.c btrfs-progs: standardize tool source filenames 2013-04-24 14:05:33 +02:00
btrfs-fragments.c btrfs-progs: standardize tool source filenames 2013-04-24 14:05:33 +02:00
btrfs-image.c Btrfs-image: add the ability to santize file names when making an image 2013-06-19 13:35:15 -04:00
btrfs-list.c Btrfs-progs: fix compile warnings in i386 machine 2013-05-10 10:55:22 -04:00
btrfs-list.h btrfs-progs: libify some parts of btrfs-progs 2013-02-27 15:24:25 +01:00
btrfs-map-logical.c Add basic RAID[56] support 2013-02-01 14:22:07 -05:00
btrfs-select-super.c btrfs-progs: btrfs-select-super output is confusing when it fails 2013-04-23 18:56:20 +02:00
btrfs-show-super.c btrfs-progs: don't call close on error fd 2013-02-27 14:39:45 +01:00
btrfs-zero-log.c btrfs-progs: separate super_copy out of fs_info 2013-03-10 16:12:21 +01:00
btrfs.c Btrfs-progs: add restore command to btrfs 2013-02-12 23:46:15 +01:00
btrfstune.c Btrfs-progs: add a free space cache checker to fsck V2 2013-04-23 18:56:21 +02:00
cmds-balance.c btrfs-progs: no pending balance is not an error 2013-04-23 18:56:20 +02:00
cmds-check.c Btrfs-progs: add the ability to find mismmatching backrefs 2013-05-10 11:03:15 -04:00
cmds-device.c btrfs-progs: rework get_fs_info to remove side effects 2013-03-12 17:07:40 +01:00
cmds-filesystem.c Btrfs-progs: record errno for ioctl DEFRAG_RANGE 2013-04-23 18:56:27 +02:00
cmds-inspect.c Btrfs-progs: add function to map subvol ID to path 2013-04-23 19:16:25 +02:00
cmds-qgroup.c btrfs-progs: add quota-related info to usage messages 2013-04-23 18:56:21 +02:00
cmds-quota.c Btrfs-progs: quota rescan 2013-04-23 18:56:27 +02:00
cmds-receive.c btrfs-progs: Fix the receive code pathing 2013-04-23 18:56:25 +02:00
cmds-replace.c btrfs-progs: rework get_fs_info to remove side effects 2013-03-12 17:07:40 +01:00
cmds-restore.c Btrfs-progs: fix compile warnings in i386 machine 2013-05-10 10:55:22 -04:00
cmds-scrub.c btrfs-progs: fix btrfs scrub start help 2013-04-23 18:56:19 +02:00
cmds-send.c Btrfs-progs: btrfs-send: free used memory and close fds 2013-04-23 19:12:03 +02:00
cmds-subvolume.c Btrfs-progs: fix compile warnings in i386 machine 2013-05-10 10:55:22 -04:00
commands.h Btrfs-progs: add restore command to btrfs 2013-02-12 23:46:15 +01:00
COPYING fix COPYING 2007-06-12 15:41:08 -04:00
crc32c.c Btrfs-progs: fix several complie warning 2012-10-04 16:26:31 -04:00
crc32c.h btrfs-progs: libify some parts of btrfs-progs 2013-02-27 15:24:25 +01:00
ctree.c Btrfs-progs: sanity check the number of items in a leaf V2 2013-05-10 10:56:59 -04:00
ctree.h Btrfs-progs: add a free space cache checker to fsck V2 2013-04-23 18:56:21 +02:00
dir-item.c Fix unused-but-set errors in gcc-4.6 2011-10-25 09:18:32 -04:00
dir-test.c btrfs-progs: Handle errors returned from open_ctree 2013-01-21 18:27:54 +01:00
disk-io.c btrfs-progs: fix typecast when printing csum value 2013-05-10 10:55:22 -04:00
disk-io.h Btrfs-progs: make restore deal with really broken file systems 2013-04-23 18:56:27 +02:00
extent_io.c Btrfs-progs: add a free space cache checker to fsck V2 2013-04-23 18:56:21 +02:00
extent_io.h Btrfs-progs: add a free space cache checker to fsck V2 2013-04-23 18:56:21 +02:00
extent-cache.c Fix unused-but-set errors in gcc-4.6 2011-10-25 09:18:32 -04:00
extent-cache.h btrfs-progs: libify some parts of btrfs-progs 2013-02-27 15:24:25 +01:00
extent-tree.c Btrfs-progs: add a free space cache checker to fsck V2 2013-04-23 18:56:21 +02:00
file-item.c btrfs-progs: separate super_copy out of fs_info 2013-03-10 16:12:21 +01:00
free-space-cache.c Btrfs-progs: init free space ctl with proper unit 2013-05-06 13:41:58 -04:00
free-space-cache.h Btrfs-progs: add a free space cache checker to fsck V2 2013-04-23 18:56:21 +02:00
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
help.c Btrfs-progs: allow multi-line command group synopsis 2012-02-08 18:55:51 +02:00
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 Removing btrfsctl, btrfs-vol, btrfs-show 2013-03-19 18:21:41 +01:00
ioctl-test.c Test the additional ioctl. 2011-10-25 09:18:58 -04:00
ioctl.h Btrfs-progs: fixup: add flags to struct btrfs_ioctl_quota_rescan_args 2013-05-10 10:55:22 -04:00
kerncompat.h Merge branch 'cov-fixes-v1-integration-20130201' of http://git.zabbo.net/cgit/btrfs-progs into merged 2013-02-06 12:51:58 -05:00
list.h btrfs-progs: make libbtrfs usable from C++ 2013-02-19 11:15:30 +01:00
Makefile btrfs-progs: Add default rules to Makefile 2013-04-24 14:08:01 +02:00
mkfs.c btrfs-progs: use clearer var names in is_ssd() 2013-04-23 18:56:26 +02:00
print-tree.c Btrfs-progs: in btrfs-debug-tree, print -1 in key for (u64)-1 2013-04-23 19:12:33 +02:00
print-tree.h Btrfs: add btrfs-debug-tree -b <block number> to print a single block 2010-04-06 09:30:17 -04:00
qgroup.c Btrfs-progs: clean up reduplicate parse_qgroupid() and replace atoi with strtoull 2013-01-21 18:28:01 +01:00
qgroup.h Btrfs-progs: clean up reduplicate parse_qgroupid() and replace atoi with strtoull 2013-01-21 18:28:01 +01:00
quick-test.c btrfs-progs: Handle errors returned from open_ctree 2013-01-21 18:27:54 +01:00
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 btrfs-progs: libify some parts of btrfs-progs 2013-02-27 15:24:25 +01:00
raid6.c btrfs-progs: include kerncompat.h in raid6.c, define __attribute_const__ 2013-02-03 12:39:16 -05:00
random-test.c btrfs-progs: Handle errors returned from open_ctree 2013-01-21 18:27:54 +01:00
rbtree.c Stop using radix trees to record pending allocations 2007-10-15 16:25:04 -04:00
rbtree.h btrfs-progs: libify some parts of btrfs-progs 2013-02-27 15:24:25 +01:00
repair.c Btrfsck: add the ability to prune corrupt extent allocation tree blocks 2012-02-21 14:37:21 -05:00
repair.h Btrfsck: add the ability to prune corrupt extent allocation tree blocks 2012-02-21 14:37:21 -05:00
root-tree.c btrfs-progs: update generation_v2 in btrfs_update_root 2013-04-23 18:56:28 +02:00
send-stream.c Btrfs-progs: remove some unused code 2013-04-23 18:56:25 +02:00
send-stream.h Btrfs-progs: btrfs-receive optionally honors the end-cmd 2013-04-23 18:56:24 +02:00
send-test.c btrfs-progs: fix send-test build 2013-04-23 18:56:27 +02:00
send-utils.c Btrfs-progs: add function to map subvol ID to path 2013-04-23 19:16:25 +02:00
send-utils.h Btrfs-progs: add function to map subvol ID to path 2013-04-23 19:16:25 +02:00
send.h btrfs-progs: make libbtrfs usable from C++ 2013-02-19 11:15:30 +01:00
show-blocks Fix showblocks to display different colors for different metadata roots 2009-03-09 13:00:44 -04:00
transaction.h btrfs-progs: add malloc check in transaction.h/btrfs_start_transaction 2013-01-18 18:27:21 +01:00
utils.c btrfs-progs: mkfs seg fault for wrong free 2013-05-02 22:30:02 -04:00
utils.h btrfs-progs: mkfs should first check all disks before writing to a disk 2013-04-23 18:56:20 +02:00
version.sh version.sh: fix version when built from tarball 2013-01-17 18:13:03 +01:00
volumes.c btrfs-progs: delete unused function btrfs_read_super_device 2013-04-23 18:56:26 +02:00
volumes.h Merge branch 'for-chris' of git://repo.or.cz/btrfs-progs-unstable/devel into raid56 2013-02-06 12:42:24 -05:00