blob: 2b3b83296977d2f10239c6c5b0a40b6af1673c97 [file] [log] [blame]
Alexey Dobriyan335debe2009-01-22 10:27:30 +03001config BTRFS_FS
David Sterbaaa8259142013-03-19 11:50:59 +00002 tristate "Btrfs filesystem support"
Alexey Dobriyan335debe2009-01-22 10:27:30 +03003 select LIBCRC32C
4 select ZLIB_INFLATE
5 select ZLIB_DEFLATE
Li Zefana6fa6fa2010-10-25 15:12:26 +08006 select LZO_COMPRESS
7 select LZO_DECOMPRESS
David Woodhouse53b381b2013-01-29 18:40:14 -05008 select RAID6_PQ
Tomasz Torcz10e78e32013-02-05 09:38:53 -05009 select XOR_BLOCKS
David Woodhouse53b381b2013-01-29 18:40:14 -050010
Alexey Dobriyan335debe2009-01-22 10:27:30 +030011 help
12 Btrfs is a new filesystem with extents, writable snapshotting,
13 support for multiple devices and many more features.
14
15 Btrfs is highly experimental, and THE DISK FORMAT IS NOT YET
16 FINALIZED. You should say N here unless you are interested in
17 testing Btrfs with non-critical data.
18
19 To compile this file system support as a module, choose M here. The
20 module will be called btrfs.
21
22 If unsure, say N.
Christian Hessebef62ef2009-02-04 09:28:28 -050023
24config BTRFS_FS_POSIX_ACL
25 bool "Btrfs POSIX Access Control Lists"
26 depends on BTRFS_FS
27 select FS_POSIX_ACL
28 help
29 POSIX Access Control Lists (ACLs) support permissions for users and
30 groups beyond the owner/group/world scheme.
31
32 To learn more about Access Control Lists, visit the POSIX ACLs for
33 Linux website <http://acl.bestbits.at/>.
34
35 If you don't know what Access Control Lists are, say N
Stefan Behrensc975dd42011-11-01 17:06:04 +010036
37config BTRFS_FS_CHECK_INTEGRITY
38 bool "Btrfs with integrity check tool compiled in (DANGEROUS)"
39 depends on BTRFS_FS
40 help
41 Adds code that examines all block write requests (including
42 writes of the super block). The goal is to verify that the
43 state of the filesystem on disk is always consistent, i.e.,
44 after a power-loss or kernel panic event the filesystem is
45 in a consistent state.
46
47 If the integrity check tool is included and activated in
48 the mount options, plenty of kernel memory is used, and
49 plenty of additional CPU cycles are spent. Enabling this
50 functionality is not intended for normal use.
51
52 In most cases, unless you are a btrfs developer who needs
53 to verify the integrity of (super)-block write requests
54 during the run of a regression test, say N
Josef Bacik74255aa2013-03-15 09:47:08 -040055
56config BTRFS_FS_RUN_SANITY_TESTS
57 bool "Btrfs will run sanity tests upon loading"
58 depends on BTRFS_FS
59 help
60 This will run some basic sanity tests on the free space cache
61 code to make sure it is acting as it should. These are mostly
62 regression tests and are only really interesting to btrfs devlopers.
63
64 If unsure, say N.
65
Eric Sandeen6d49ba12013-04-22 16:12:31 +000066config BTRFS_DEBUG
67 bool "Btrfs debugging support"
68 depends on BTRFS_FS
69 help
70 Enable run-time debugging support for the btrfs filesystem. This may
71 enable additional and expensive checks with negative impact on
72 performance, or export extra information via sysfs.
73
74 If unsure, say N.