2 tristate "Btrfs filesystem support"
12 Btrfs is a new filesystem with extents, writable snapshotting,
13 support for multiple devices and many more features.
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.
19 To compile this file system support as a module, choose M here. The
20 module will be called btrfs.
24 config BTRFS_FS_POSIX_ACL
25 bool "Btrfs POSIX Access Control Lists"
29 POSIX Access Control Lists (ACLs) support permissions for users and
30 groups beyond the owner/group/world scheme.
32 To learn more about Access Control Lists, visit the POSIX ACLs for
33 Linux website <http://acl.bestbits.at/>.
35 If you don't know what Access Control Lists are, say N
37 config BTRFS_FS_CHECK_INTEGRITY
38 bool "Btrfs with integrity check tool compiled in (DANGEROUS)"
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.
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.
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
56 config BTRFS_FS_RUN_SANITY_TESTS
57 bool "Btrfs will run sanity tests upon loading"
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.
67 bool "Btrfs debugging support"
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.