fs/xfs/Kconfig

   1 config XFS_FS
   2         tristate "XFS filesystem support"
   3         depends on BLOCK
   4         help
   5           XFS is a high performance journaling filesystem which originated
   6           on the SGI IRIX platform.  It is completely multi-threaded, can
   7           support large files and large filesystems, extended attributes,
   8           variable block sizes, is extent based, and makes extensive use of
   9           Btrees (directories, extents, free space) to aid both performance
  10           and scalability.
  11
  12           Refer to the documentation at <http://oss.sgi.com/projects/xfs/>
  13           for complete details.  This implementation is on-disk compatible
  14           with the IRIX version of XFS.
  15
  16           To compile this file system support as a module, choose M here: the
  17           module will be called xfs.  Be aware, however, that if the file
  18           system of your root partition is compiled as a module, you'll need
  19           to use an initial ramdisk (initrd) to boot.
  20
  21 config XFS_QUOTA
  22         bool "XFS Quota support"
  23         depends on XFS_FS
  24         help
  25           If you say Y here, you will be able to set limits for disk usage on
  26           a per user and/or a per group basis under XFS.  XFS considers quota
  27           information as filesystem metadata and uses journaling to provide a
  28           higher level guarantee of consistency.  The on-disk data format for
  29           quota is also compatible with the IRIX version of XFS, allowing a
  30           filesystem to be migrated between Linux and IRIX without any need
  31           for conversion.
  32
  33           If unsure, say N.  More comprehensive documentation can be found in
  34           README.quota in the xfsprogs package.  XFS quota can be used either
  35           with or without the generic quota support enabled (CONFIG_QUOTA) -
  36           they are completely independent subsystems.
  37
  38 config XFS_POSIX_ACL
  39         bool "XFS POSIX ACL support"
  40         depends on XFS_FS
  41         help
  42           POSIX Access Control Lists (ACLs) support permissions for users and
  43           groups beyond the owner/group/world scheme.
  44
  45           To learn more about Access Control Lists, visit the POSIX ACLs for
  46           Linux website <http://acl.bestbits.at/>.
  47
  48           If you don't know what Access Control Lists are, say N.
  49
  50 config XFS_RT
  51         bool "XFS Realtime subvolume support"
  52         depends on XFS_FS
  53         help
  54           If you say Y here you will be able to mount and use XFS filesystems
  55           which contain a realtime subvolume.  The realtime subvolume is a
  56           separate area of disk space where only file data is stored.  It was
  57           originally designed to provide deterministic data rates suitable
  58           for media streaming applications, but is also useful as a generic
  59           mechanism for ensuring data and metadata/log I/Os are completely
  60           separated.  Regular file I/Os are isolated to a separate device
  61           from all other requests, and this can be done quite transparently
  62           to applications via the inherit-realtime directory inode flag.
  63
  64           See the xfs man page in section 5 for additional information.
  65
  66           If unsure, say N.
  67
  68 config XFS_DEBUG
  69         bool "XFS Debugging support (EXPERIMENTAL)"
  70         depends on XFS_FS && EXPERIMENTAL
  71         help
  72           Say Y here to get an XFS build with many debugging features,
  73           including ASSERT checks, function wrappers around macros,
  74           and extra sanity-checking functions in various code paths.
  75
  76           Note that the resulting code will be HUGE and SLOW, and probably
  77           not useful unless you are debugging a particular problem.
  78
  79           Say N unless you are an XFS developer, or you play one on TV.