fs/btrfs/Kconfig

   1 config BTRFS_FS
   2         tristate "Btrfs filesystem support"
   3         select CRYPTO
   4         select CRYPTO_CRC32C
   5         select ZLIB_INFLATE
   6         select ZLIB_DEFLATE
   7         select LZO_COMPRESS
   8         select LZO_DECOMPRESS
   9         select RAID6_PQ
  10         select XOR_BLOCKS
  11
  12         help
  13           Btrfs is a general purpose copy-on-write filesystem with extents,
  14           writable snapshotting, support for multiple devices and many more
  15           features focused on fault tolerance, repair and easy administration.
  16
  17           The filesystem disk format is no longer unstable, and it's not
  18           expected to change unless there are strong reasons to do so. If there
  19           is a format change, file systems with a unchanged format will
  20           continue to be mountable and usable by newer kernels.
  21
  22           For more information, please see the web pages at
  23           http://btrfs.wiki.kernel.org.
  24
  25           To compile this file system support as a module, choose M here. The
  26           module will be called btrfs.
  27
  28           If unsure, say N.
  29
  30 config BTRFS_FS_POSIX_ACL
  31         bool "Btrfs POSIX Access Control Lists"
  32         depends on BTRFS_FS
  33         select FS_POSIX_ACL
  34         help
  35           POSIX Access Control Lists (ACLs) support permissions for users and
  36           groups beyond the owner/group/world scheme.
  37
  38           To learn more about Access Control Lists, visit the POSIX ACLs for
  39           Linux website <http://acl.bestbits.at/>.
  40
  41           If you don't know what Access Control Lists are, say N
  42
  43 config BTRFS_FS_CHECK_INTEGRITY
  44         bool "Btrfs with integrity check tool compiled in (DANGEROUS)"
  45         depends on BTRFS_FS
  46         help
  47           Adds code that examines all block write requests (including
  48           writes of the super block). The goal is to verify that the
  49           state of the filesystem on disk is always consistent, i.e.,
  50           after a power-loss or kernel panic event the filesystem is
  51           in a consistent state.
  52
  53           If the integrity check tool is included and activated in
  54           the mount options, plenty of kernel memory is used, and
  55           plenty of additional CPU cycles are spent. Enabling this
  56           functionality is not intended for normal use.
  57
  58           In most cases, unless you are a btrfs developer who needs
  59           to verify the integrity of (super)-block write requests
  60           during the run of a regression test, say N
  61
  62 config BTRFS_FS_RUN_SANITY_TESTS
  63         bool "Btrfs will run sanity tests upon loading"
  64         depends on BTRFS_FS
  65         help
  66           This will run some basic sanity tests on the free space cache
  67           code to make sure it is acting as it should.  These are mostly
  68           regression tests and are only really interesting to btrfs
  69           developers.
  70
  71           If unsure, say N.
  72
  73 config BTRFS_DEBUG
  74         bool "Btrfs debugging support"
  75         depends on BTRFS_FS
  76         help
  77           Enable run-time debugging support for the btrfs filesystem. This may
  78           enable additional and expensive checks with negative impact on
  79           performance, or export extra information via sysfs.
  80
  81           If unsure, say N.
  82
  83 config BTRFS_ASSERT
  84         bool "Btrfs assert support"
  85         depends on BTRFS_FS
  86         help
  87           Enable run-time assertion checking.  This will result in panics if
  88           any of the assertions trip.  This is meant for btrfs developers only.
  89
  90           If unsure, say N.